• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Conveyor dishwasher machine provided with an improved rinsing device and associated method. Dishwashing machine (1) in which a rinse fluid is supplied in a rinse station (6) from the respective first (19) and second (20) arms to the dishes that are contained in the respective baskets (9) advanced through the dishwashing machine by a conveyor (8), the second arms (20) being arranged downstream of the first arms (19); the tap water is fed under pressure, simultaneously, into first and second branches (26, 27) of a hydraulic circuit (24) directly connected to the first and second arms (19, 20), after heating to a first pre-set temperature (T1) in a first boiler (28) hydraulically arranged in series with the first branch (26), and at a second pre-set temperature (T2), higher than the first, in a second boiler (29) hydraulically arranged in series in the second branch (27), with a supplying device (30) mixing a brightening agent only to the water heated in the second boiler (29). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2717551A1
    申请号:ES201831205
    申请日:2018-12-13
    公开日:2019-06-21
    发明作者:Riccardo Orlandi；Alessio Chericoni
    申请人:Illinois Tool Works Inc；
    IPC主号:
    专利说明:

    [0001]
    [0002] Conveyor dishwasher equipped with an improved rinsing device and associated method
    [0003]
    [0004] Cross reference to correlated patent applications
    [0005]
    [0006] This application claims the priority of the Italian Patent Application No. 102017000148499 filed on December 21, 2017, the content of which is incorporated herein by reference.
    [0007]
    [0008] The present invention relates to a conveyor dishwashing machine provided with an improved rinsing device and an associated rinsing method, which allows a considerable saving of energy and water, as well as of the finishing working fluids, in particular of the brightener.
    [0009]
    [0010] The conveyor machines ("rack-conveyor machines"), also known as tunnel-type dishwashers, comprise a housing that delimits a tunnel chamber divided into different sectors or stations, arranged in sequence, to perform, in sequence, the different functions of prewashing, washing, rinsing and drying. The dishes to be cleaned are placed inside lattice trays or trays that are transported through the different sections / different sectors by means of a belt conveyor, which traverses the entire tunnel chamber and has its opposite ends disposed outside the chamber of tunnel, respectively upstream of an inlet opening and downstream of an exit opening of the tunnel chamber, to allow the placement of the baskets containing the dirty dishes and the subsequent recovery of the same baskets, which contain the tableware washed and dried.
    [0011]
    [0012] In order to respect hygienic-sanitary standards, the final rinse of the dishes must be carried out with water brought to a high temperature, equal to or higher than 80 ° C, generally added with a finishing operating fluid, such as an agent rinse aid. In addition, the amount of rinse water must be proportional to the maximum feed speed of the conveyor belt, on which the productivity of the dishwashing machine depends. Consequently, considering that a dishwasher machine rarely works at the maximum design speed, considerable rinse water and rinse aid waste are found in the considerable dishwashing machines, with consequent high energy consumption, due to the excessive consumption of very hot water.
    [0013]
    [0014] Finally, it has been found that some types of crockery, in particular those made of glass, can suffer damage due to the thermal shock of very hot rinse water jets.
    [0015]
    [0016] To solve these problems, GB2435413A envisages providing the rinse section of a tunnel-type dishwashing machine with several arms / nozzles, some of which are selectively deactivated as a function of the feed speed of the conveyor belt.
    [0017]
    [0018] This solution is not without its drawbacks. In the first place, it considerably complicates the construction and, above all, the operation of the dishwashing machine, necessitating the introduction of sophisticated control systems, which also considerably increase the production costs. Secondly, the deactivation of the nozzles / rinse arms can cause, over time, their clogging due to deposits, in particular if hard water is used, which forces to adopt systems to reduce the hardness of the water, which again it implies an increase in cost. Finally, this solution does not solve the problem of damage to the dishes due to thermal shocks.
    [0019]
    [0020] The object of the invention is to provide a tunnel-type dishwashing machine, that is, a conveyor-type dishwashing machine, which makes it possible to reduce the energy consumption and finishing chemical products such as the polish, while avoiding thermal shocks at the same time. the tableware, while ensuring compliance with the hygienic-sanitary standards. It is also an object of the present invention to provide a dishwashing machine of the aforementioned type, which is simple and economical in construction and, above all, of simple operation, which does not require the introduction of additional control systems.
    [0021]
    [0022] It is, finally, an object of the present invention to provide a rinsing method that allows to overcome or at least reduce the drawbacks of the prior art.
    [0023] According to the present invention, therefore, there is provided a conveyor dishwashing machine and an associated rinsing method in accordance with that defined in the appended claims.
    [0024]
    [0025] Other objects and advantages of the present invention will become clear from the following description of some of its non-limiting embodiment examples, provided purely by way of example and with reference to the figures of the accompanying drawings, in which:
    [0026] - Figure 1 schematically illustrates a longitudinal elevational view and sectioned by means of a vertical section plane of a dishwashing machine with conveyor, or of a "tunnel" type, made in accordance with the present invention; Y
    [0027]
    [0028] - Figures 2 and 3 schematically illustrate the same view in longitudinal elevation and in cross section through a vertical section plane of the respective possible variants of the dishwashing machine shown in Figure 1.
    [0029]
    [0030] With reference to Figure 1, it is indicated as a whole with 1 a dishwashing machine with conveyor, or of the so-called "tunnel type", typically for professional use (that is, designed for intensive use in public environments such as restaurants, bars, communities), illustrated only in schematic mode for simplicity, in its essential components.
    [0031]
    [0032] The dishwashing machine 1 comprises a casing 2, shown only schematically in longitudinal section by a line delimiting its outer profile. The casing 2 delimits, in its own interior, a tunnel chamber 3.
    [0033]
    [0034] The tunnel chamber 3 is subdivided into a plurality of stations or sections arranged in sequence; In the illustrated non-limiting example, the tunnel chamber 3 is subdivided into four stations: a known prewash station 4, a known washing station 5, a rinsing station 6 and a known drying station 7 which can be or not be part of the tunnel chamber 3, being in some machines only provided as an option.
    [0035]
    [0036] According to one aspect of the present invention, regardless of the number and type of stations in which the tunnel chamber 3 is separated, the dishwasher 1 always it comprises at least one rinsing station 6 arranged, immediately, downstream of a washing station 5 and upstream, when present, of a drying station 7.
    [0037]
    [0038] The dishwashing machine 1 further comprises a conveyor 8 which passes through the tunnel chamber 3 for transporting through it a plurality of known baskets (or lattice trays) 9 (one of them is shown schematically in dashed lines, for simplicity, in Figure 1), in which dishes 10 to be washed are received. The conveyor 8 can be of any known type normally used in tunnel machines of the dishwasher 1 type, preferably it is a so-called "dragging" conveyor, in which the conveyor system of the baskets 9 is completely inside the machine 1 ; however, it could also be of the tape type; in any case, the conveyor 8 is of known type and, therefore, is not described in detail for simplicity.
    [0039]
    [0040] Now, and then, the terms "flow up" and "flow down" should be understood with reference to a direction D of advancement of the conveyor 8, indicated in Figure 1 by the arrow.
    [0041]
    [0042] The opposite ends 11 and 12 of the conveyor 8 are arranged in correspondence with the opposite openings 13 and 14 of, respectively, inlet and outlet of the tunnel chamber 3. In the non-limiting example illustrated, the opposite ends 11 and 12 of the conveyor 8 are arranged within the tunnel chamber 3, respectively, immediately downstream of the inlet opening 13 within the tunnel chamber 3 and immediately upstream of the outlet opening 14 from the tunnel chamber 3, to allow easy positioning manual of the baskets 9 containing tableware 10 dirty and the subsequent manual easy removal of the same baskets 9, which contain dishes 10 washed and dried. Optionally, the introduction and removal of the baskets 9 can be automated by means of suitable known accessories.
    [0043]
    [0044] In the case of a conveyor belt, not shown, however, the ends 11 and 12 are generally arranged outside the tunnel chamber 3, respectively, immediately upstream of the inlet opening 13 in the tunnel chamber 3 and immediately flow down the exit opening 14 of the tunnel chamber 3.
    [0045] In any case, the stations 4, 5, 6 and 7 are separated from each other by respective tilting bulkheads 16 made of a soft and flexible material, but in any case resistant to heat, for example, in a synthetic plastic resin or adapted rubber.
    [0046]
    [0047] Inside the tunnel chamber 3, in correspondence with each station 4, 5, 6, respective supplying arms 18-20 of a washing and / or rinsing fluid are disposed, which can consist of simple water or water with the addition of substances chemicals, for example, as detergents or finishing agents, such as a polish. The arms 18 20 are generally present in pairs, arranged above and below the plane of the conveyor 8 on which the baskets 9 rest.
    [0048]
    [0049] The prewash and wash stations 4 and 5 operate in a closed cycle, whereby the washing fluid used is collected in the appropriate tanks 21 and recirculated to the supply arms 18 by pumps 22. The latter, together with the tanks 21 and a motor 23 for driving the conveyor 8 are housed inside the casing 2, below the tunnel chamber 3.
    [0050]
    [0051] According to one aspect of the present invention, the rinsing station 6 is provided with two pairs (or two groups) of supply arms 19 and 20 of a rinsing fluid, arranged in the tunnel chamber 3 within the rinsing station 6. In particular, the rinsing section 6 is provided with at least one pair of first supply arms 19 and with at least a pair of second supply arms 20; it is evident that the arms 19 and 20 can be present in a greater number of two, for example, in groups of three or four, for example, two arms 19 and two arms 20 arranged in the upper part and in the lower part and others two arms 19 and 20 arranged on the side.
    [0052]
    [0053] According to the present invention, the second supply arms 20 are always arranged, however, in the tunnel chamber 3 downstream of the first supply arms 19, where the terms "flow up" and "flow down" are to be understood with reference to the advancing direction D of the conveyor 8, as indicated above.
    [0054]
    [0055] Finally, the dishwashing machine 1 comprises a hydraulic circuit 24 for supplying running water to the supply arms 19 and 20. In fact, unlike the known stations 4 and 5, the rinsing station 6 must operate in open cycle and, for therefore, it must be continuously fed with running water. The rinsing fluid used is collected, unloaded and treated in a manner known and not illustrated for simplicity.
    [0056]
    [0057] According to the present invention, the hydraulic supply circuit comprises a receiving section 25 of running water and a first and a second branch, indicated respectively with the references 26 and 27, connected to each other in parallel downstream of the reception section 25 of running water, where for the hydraulic circuit 24 the terms "flow up" and "flow down" are to be understood with reference to a flow direction F of the running water in the supply hydraulic circuit 24, indicated by the arrow.
    [0058]
    [0059] The first branch 26 is hydraulically connected directly to the first arms 19 and the second branch 27 is hydraulically connected directly to the second arms 20.
    [0060]
    [0061] In the embodiment illustrated in Figure 1, the receiving section 25 of the hydraulic circuit 24 is constituted by a simple coupling to a pressurized running water supply system, which is not illustrated for simplicity, for example, the water pipe pubic, so it is not necessary to provide a feed pump for the arms 19, 20.
    [0062]
    [0063] According to one of the main aspects of the invention, further, the first branch 26 is hydraulically provided in series with a first boiler 28 for heating the main water arranged upstream (with reference to the flow direction F) of the first supply arms 19 ; similarly, the second branch 27 is hydraulically provided in series with a second boiler 29 for heating the upstream flow water (with reference to the flow direction F) of the second supply arms 20.
    [0064]
    [0065] According to the present invention, the first boiler 28 is established, that is, configured to heat the running water to a first predetermined temperature T1, while the second boiler 29 is established, that is, configured, to heat the running water to a second one. pre-set temperature T2, higher than the first predetermined temperature T1.
    [0066]
    [0067] According to the present invention, the first preset temperature T1 is less than 80 ° C, while the second preset temperature T2 is greater than 80 ° C.
    [0068] In particular, the first temperature T1 is higher than the washing water supply temperature in the washing section 5. For example, the temperature of the washing fluid supplied in section 5 by the arms 18 is usually about 60 ° C; in this case, the temperature T1 will be chosen slightly higher, for example, equal to 70 ° C.
    [0069]
    [0070] In contrast, the temperature T2 will be chosen much higher than the washing temperature and higher than at least ten degrees at the temperature T1, for example, the temperature T2 is set equal to 85 ° C. In this way, it complies with the hygienic-sanitary norms without causing a thermal shock in the dishes 10.
    [0071]
    [0072] Furthermore, according to a further and non-secondary aspect of the present invention, the hydraulic supply circuit 24 is configured so that the first and second arms 19 and 20 always supply the rinsing fluid simultaneously.
    [0073]
    [0074] In this way, a correct amount of rinse fluid is always guaranteed, regardless of the speed of advancement of the conveyor 8, without the need to install expensive and sophisticated control systems, but, at the same time, thanks to the presence of two boilers separated 28 and 29 connected to supply arms 19 and 20 separated and adjusted to significantly different temperatures, the energy consumptions of the dishwashing machine 1 are significantly reduced, since most of the water used for rinsing is heated to a lower temperature.
    [0075]
    [0076] According to a further and non-secondary aspect of the present invention, finally, only the second branch 27 is connected in bypass, upstream of the second arms 20 (always with reference to the flow direction F) with a supplying device 30 of a rinsing finishing chemical to mix it with the running water supplied to the second arms 20.
    [0077]
    [0078] According to a possible variant, illustrated in broken lines in Figure 1, the receiving section of the running water 25 of the hydraulic circuit 24 for supplying the arms 19, 20 comprises a non-return valve 31 arranged in series with a first tubular line 32 which also forms part of the receiving section 25, whose tubular conduit 32, upstream of the non-return valve 31 (with reference to the flow direction F) is directly connected to the running water and downstream of the non-return valve 31 is directly connected to the first branch 26 and to the second branch 27, in derivation both from the first tubular conduit 32 and towards the respective first boiler 28 and the second boiler 29.
    [0079]
    [0080] In all cases, the dispensing device 30 of a rinse-off chemical is a device for supplying a polishing agent and comprises a storage tank of a polishing agent 33, a tubular pipe of the polishing agent 34, which is fed into the polishing agent. storage tank 33, and a rinse agent dispensing pump 35 arranged in series in the tubular line 34 immediately downstream of the storage tank 33; the tubular supply pipe of the polishing agent 34 is realized in such a way that it drains preferentially into the interior of the second boiler 29, downstream of the rinse aid agent supply pump 35. In this way, a good mixing of the polishing agent is ensured with the running water and a homogeneous heating of both (water and polishing agent) before supply to the arms 20 and, therefore, to the dishes 10.
    [0081]
    [0082] Figures 2 and 3 illustrate the dishwashing machines 1b and 1c according to the present invention, made according to possible variants to the embodiment illustrated in Figure 1. Details similar or identical to those already described are indicated by the same reference numbers , For simplicity.
    [0083]
    [0084] First, the dishwashing machines according to the present invention illustrated in Figures 2 and 3 differ from the embodiment of Figure 1 in that the receiving water section 25 of the hydraulic circuit 24 for feeding the arms 19 and 20 , comprises a first tubular conduit 32 connected directly to the tap water, a tubular conduit 36 arranged downstream of the first tubular conduit 32 and a known air blowing device 37, arranged in series with the first tubular conduit 32 and flow upstream of the tubular conduit 32. the tubular conduit 36 for decoupling the second tubular conduit 36 from the first tubular conduit 32.
    [0085]
    [0086] In the embodiment of Figure 2, the second tubular line 36 of the dishwashing machine 1b is also provided hydraulically in series with a single pump 38 for feeding both the first arms 19 and the second arms 20. The pump only 38 is necessary, inasmuch as the air blowing device 37 restores the network pressure, so it is necessary to re-pressurize the running water to be able to causing it to travel in the hydraulic circuit 24 and to supply a pressurized rinse fluid of the arms 19 and 20.
    [0087]
    [0088] The second tubular conduit 36 is directly connected, downstream of the single supply pump 38, with the first branch 26 and with the second branch 27, which are both diverted in bypass from the second tubular conduit 36 and towards the respective first boiler 28. and the second boiler 29.
    [0089]
    [0090] Preferably, and always with reference to Figure 2, the second tubular conduit 36, downstream of the single feed pump 38 for both pairs or groups of arms 19 and 20, and flow up the first branch 26 and the second branch 27 is hydraulically connected in series with at least one heat exchanger 39 (in Figure 2, heat exchangers 39 are two, hydraulically arranged in series in tubular conduit 36) receiving thermal energy through at least one circulation fan of hot air 40 from any one (or more than one) of the stations 4, 5, 6 and, when present, also from the drying station 7. More specifically, the fan 40 attracts a flow of hot air A of one or more (depending on how the hydraulic connections are made inside the casing 2) of the sections or stations 4-7 located (with respect to the direction D) downstream of the fan 40 and of the exchangers 39, that therefore they are crossed by said flow of hot air A, which therefore gives part of its heat to the running water before being discharged from the machine 1.
    [0091]
    [0092] Referring now to the variant of Figure 3, also in this case the receiving section 25 of running water comprises the tubular conduits 32, 36 and the air blowing device 37.
    [0093]
    [0094] In this case, however, the second tubular conduit 36 is directly connected to the first branch 26 and the second branch 27, which are both diverted in bypass from the second tubular conduit 36 and towards the respective first boiler 28 and second boiler 29 .
    [0095]
    [0096] In addition, a first feed pump 41 is hydraulically arranged in series along the first branch 26 and a second feed pump 42 is hydraulically arranged in series along the second branch 27, in both cases downstream of the second. tubular conduit 36 and flow upstream of the first and second boilers 27, 28 (always with reference to the flow direction F), to feed the first arms 19 and the second arms 20, respectively.
    [0097]
    [0098] Preferably, also according to this variant, the first branch 26 and / or the second branch 27 (preferably both, as illustrated in Figure 3) are hydraulically connected in series, respectively downstream of the pumps 41, 42 and upstream of the pumps. the boilers 28, 29, to at least one heat exchanger 39 receiving thermal energy through at least one air circulation fan 40 from one of the stations 4-7, as already described for the variant of the Figure 2. In particular, the branch 26 is provided in series with a single heat exchanger 39, while the branch 27 is provided in series with two heat exchangers 39 located in series with each other and arranged upstream of the heat exchanger 39 in series with the branch 26, with reference to the direction of a flow of hot air A attracted by the fan 40.
    [0099]
    [0100] On the basis of the above-described, it is evident that all the conveyor dishwasher machines 1, 1b and 1c described carry out a rinse method for lightening dishes present in the dishwasher machines themselves, in which a rinse fluid is supplied. by the respective arms 19, 29 towards the dishes 10 that are contained in the respective baskets 9 advanced through the dishwasher 1, 1b, 1c from a conveyor 8.
    [0101]
    [0102] According to the present invention, the rinsing method performed by the dishwashing machines 1, 1b, 1c, comprises the following phases:
    [0103]
    [0104] a) predisposing, in a rinse station 6 of the dishwashing machine, pairs or separate groups of first arms 19 and second arms 20 supplying a rinsing fluid, the second supply arms 20 being arranged downstream of the first supply arms 19 with reference to a forward direction D of the conveyor 8;
    [0105] b) receiving tap water and supplying it under pressure (at the pressure of the network according to the embodiment of Figure 1, by means of the pumps 38, 41, 42 in the embodiments of Figures 2 and 3) within a first branch 26 and a second branch 27 of a hydraulic circuit 24 for feeding the arms 19, 20, the branches 26 and 27 being directly connected, respectively, with the first arms 19 and with the second arms 20, so as to simultaneously feed the first arms 19 and the second arms 20;
    [0106] c) heating the tap water, before supplying it to the arms 19, 20, a first predetermined temperature T1 in a first boiler 28 hydraulically arranged in series in the first branch 26, and at a second pre-set temperature T2, higher than the temperature T1, in a second boiler 29 hydraulically arranged in series in the second branch 27;
    [0107] d) mixing, upstream of the second arms 20, only the hot water heated in the second boiler 29, with a chemical rinse-off finish.
    [0108] With reference to the variants of Figures 2 and 3, the rinsing method, according to the present invention, further comprises the step of preheating the tap water before supplying it in the first boiler 28 and / or the second boiler 29 through minus one heat exchanger 39 to which hot air is supplied from one of stations 4-7 of the dishwashing machine.
    [0109]
    [0110] Obviously, the flow A of hot air attracted by the fan 40 to pass through the heat exchangers 39 can obtain thermal energy not only from that which enters into the stations 4-7, but also from that emitted by the whole dishwasher machine 1, 1b, 1c, for example, by passing the air in cavities located around the tunnel chamber 3.
    [0111]
    [0112] Thanks to what has been described above, it is guaranteed at the same time to obtain the rinse as required by hygienic-sanitary norms and with great abundance of water, for an optimal result, and to save a great amount of thermal energy and brightening agent, as only a fraction of the rinse water is heated to high temperature and added with a brightening agent.
    [0113]
    [0114] In this way, all the objects of the present invention are achieved.
    权利要求:
    Claims (12)
    [1]
    1. Dishwashing machine conveyor (1, 1b, 1c) comprising: a housing (2) defining a chamber tunnel (3) subdivided into a plurality of sections or stations arranged in sequence, between which at least one station rinse (6) immediately placed downstream of a washing station (5); a conveyor (8) that passes through the tunnel chamber to transport through it a plurality of baskets (9) in which dishes (10) to be washed are received, with opposite ends (11, 12) of the conveyor being arranged, respectively, in correspondence with an entrance opening (13) in the tunnel chamber and an exit opening (14) from the tunnel chamber, to allow the positioning of the baskets containing dirty dishes and the subsequent removal of the same baskets, which contain washed dishes; the respective arms (19, 20) supplying a rinsing fluid arranged in the tunnel chamber (3) inside the rinsing station (6); and a hydraulic circuit (24) for supplying running water to the supplying arms; where:
    i) the rinsing section (6) is provided with first supply arms (19) and second supply arms (20), the second supply arms (820) being arranged in the tunnel chamber downstream of the first supply arms (19) with reference to a direction (D) of advancement of the conveyor (8);
    characterized by the fact that, in combination:
    ii) the supply hydraulic circuit (24) comprises a water receiving section (25) and a first branch (26) and a second branch (27) connected to each other in parallel downstream of the receiving section (25) of running water with reference to a direction of flow (F) of the running water in the hydraulic supply circuit, the first branch (26) being hydraulically connected only to the first arms (19) and the second branch (27) connected hydraulically only to the second arms (20);
    iii) the first branch (26) is provided with a first boiler (28) for heating the running water arranged upstream of the first supply arms (19) and the second branch (27) is provided with a second boiler (29) for heating the running water arranged upstream of the second supply arms (20);
    iv) the first boiler (28) is set to heat the running water to a first set temperature (T1) and the second boiler (29) is set to heat the running water to a second pre-set temperature (T2) higher than the first; Y
    v) only the second branch (27) is connected in a bypass, upstream of the second arms (20), with a device (30) supplying a rinsing finishing chemical to mix it only with the running water supplied to the second ones arms (20).
    [2]
    Dishwashing machine according to claim 1, characterized in that the first pre-set temperature (T1) is lower than 80 ° C, while the second pre-set temperature (T2) is higher than 80 ° C.
    [3]
    Dishwashing machine according to claim 2, characterized in that the first temperature (T1) is greater than a washing water supply temperature in said washing section (5).
    [4]
    Dishwashing machine according to one of the preceding claims, characterized in that said supply device (30) of a rinse-off chemical is a device for supplying a polishing agent comprising a storage tank (33) for the polishing agent, a tubular pipe (34) for supplying the polishing agent that is introduced into the storage tank (33), and a polishing agent supply pump (35) arranged in series with the tubular supply pipe (34), immediately downstream of the storage tank (33); with the tubular conduit (34) for supplying the polishing agent opening into the interior of the second boiler (29), downstream of said rinse agent supply pump (35).
    [5]
    Dishwashing machine according to one of the preceding claims, characterized in that said hydraulic supply circuit (24) is configured in such a way that the first (19) and the second (20) arms supply the rinsing fluid, Simultaneously.
    [6]
    Dishwashing machine according to one of the preceding claims, characterized in that the receiving section (25) of the running water of said circuit The hydraulic supply comprises a non-return valve (31) arranged in series with a first tubular line (32), which, upstream of the non-return valve, is directly connected to the tap water and downstream of the non-return valve. return is directly connected to the first and second branches (26, 27), which both deviate in derivation from the first tubular conduit and towards the respective first and second boilers (28, 29).
    [7]
    Dishwasher machine according to one of the preceding claims, characterized in that the receiving section (25) of the running water of said hydraulic supply circuit (24) comprises a first tubular line (32) directly connected to the running water , a second tubular conduit (36) disposed downstream of the first tubular conduit, and an air blowing device (37) arranged in series with the first tubular conduit and flow upstream of the second tubular conduit for decoupling the second tubular conduit from the first tubular conduit; the second tubular pipe (36) being hydraulically supplied in series with a single pump (38) for feeding both first and second arms (19, 20) and being directly connected, downstream of said single pump (38), with the first and with the second branch (26, 27), which both deviate in derivation from the second tubular conduit (36) and towards the first and second boilers (28, 29), respectively.
    [8]
    Dishwashing machine according to claim 7, characterized in that the second tubular line (36) flows downstream of said single pump (38) and flows upstream of the first and second branches (26, 27) is hydraulically connected in series to at least one heat exchanger (39) which receives thermal energy through at least one air circulation fan (40) of one or more of said plurality of stations or sections arranged in sequence.
    [9]
    Dishwasher machine according to one of the preceding claims, characterized in that the receiving section (25) of the running water of said hydraulic supply circuit (24) comprises a first tubular line (32) connected directly to the running water , a second tubular conduit (36) arranged flow below the first tubular conduit, and an air blowing device (37) arranged in series with the first tubular conduit and flow upstream of the second tubular conduit for decoupling the second conduit from the first driving; being the second tubular conduit (36) directly connected to the first and second branches (26, 27), which are both diverted in bypass from the second tubular conduit (36) and into the first and second boilers (28, 29), respectively; a first and a second feed pump (41, 42) are hydraulically arranged in series respectively along the first and second branch (26, 27), downstream of the second tubular conduit (36) and flow above said first and second boilers (28, 29), for feeding respectively the first and second arms (19, 20).
    [10]
    10. Dishwashing machine according to claim 9, characterized in that the first and / or second branch (26, 27) are hydraulically connected in series, respectively, downstream of the first (41) and second (42 ) pump and flow above the first and second boilers (28, 29), and at least one heat exchanger (39) that receives thermal energy through at least one air circulation fan (40) from one or more of said plurality of stations or sections arranged in sequence.
    [11]
    11. Rinsing method for lightening dishes present in a conveyor dishwasher machine (1, 1b, 1c), in which a rinsing fluid is supplied from the respective arms (19, 20) to the dishes that are contained in the baskets respective (9) advanced through the dishwashing machine by a conveyor (8); characterized by the fact of understanding the following phases:
    a) dispose in a rinse station (6), of the dishwashing machine, first (19) and second (20) arms supplying a rinsing fluid, the second supply arms (20) being arranged downstream of the first supplying arms (19) with reference to a forward direction (D) of the conveyor;
    b) receive running water and supply it under pressure within a first (26) and second (27) branches of a hydraulic circuit directly connected, respectively, to the first (19) and second (20) arms, so that the first and second arms are fed simultaneously;
    c) heating the tap water, before supplying said first and second arms, to a first predetermined temperature (T1) in a first boiler (28) arranged hydraulically in series in the first branch (26), and to a second one pre-set temperature (T2), higher than the first, in a second boiler (29) hydraulically arranged in series in the second branch (27);
    d) mixing, upstream of the second arms (20), only the tap water heated in the second boiler (29) with a chemical rinse-off finish.
    [12]
    12. Method according to claim 11, characterized in that it further comprises the phase of preheating the water before feeding current in the first and / or second boiler (28, 29) by at least one heat exchanger (39 ) to which hot air is fed from one or more of said plurality of stations of the dishwashing machine.
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    同族专利:
    公开号 | 公开日
    ES2717551B2|2019-11-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080035175A1|2004-06-22|2008-02-14|Premark Feg L.L.C.|Conveyor-Type Dishwasher and Method for Operating It|
    US20110094544A1|2009-10-23|2011-04-28|Premark Feg L.L.C.|Warewash machine with soil detection|
    WO2016018780A1|2014-07-31|2016-02-04|Illinois Tool Works Inc.|Adjustable rinsing device and dishwashing machine having such a device|
    WO2016164537A1|2015-04-09|2016-10-13|Illinois Tool Works Inc.|Conveyor dishwasher and method for operating a conveyor dishwasher|
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    IT201700148499|2017-12-21|
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