• 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:
    A water-cooled air compressor is provided which is capable of preventing the decrease in performance of a plate compressor for effecting heat exchange between compressed air from a compressor body and water cooling due to obstruction of the spaces between the heat exchanger plates by dust or the like, comprising a first solenoid valve and a second solenoid valve connected respectively to a cooling water supply line and a cooling water line. '' heat exchanger cooling water discharge, an air supply line connected between a compressed air supply line on the outlet side of the heat exchanger and the cooling water discharge line, a third solenoid valve and a non-return valve connected to the air supply line, a discharge line connected to a discharge line 18 so therefrom, a quat rth solenoid valve connected to the discharge pipe, and a control device intended to control the opening and ...
    公开号:BE1018911A3
    申请号:E2008/0337
    申请日:2008-06-18
    公开日:2011-11-08
    发明作者:Hidearu Tanaka；Masahito Takano；Akihiro Nagasaka
    申请人:Hitachi Ind Equipment Sys；
    IPC主号:
    专利说明:

    WATER-COOLED AIR COMPRESSOR Background of the Invention
    The present invention relates to a water cooled air compressor having a plate heat exchanger, and in particular a water cooled air compressor capable of preventing a plate heat exchanger from being obstructed by foreign bodies.
    In recent years, there has been a growing demand for small air compressors. The air compressor is mainly composed of a motor, a compressor body, a multiplication gear and an integrated dryer which occupy a lot of space in the air compressor, and also includes a heat exchanger with water cooling which also occupies a relatively important place in the interior.
    In the above circumstances, instead of conventionally-used shell-and-tube heat exchangers, small and high-performance plate heat exchangers are used more as heat exchangers to cool the compressed air of the heat exchangers. to satisfy the aforementioned application (see, for example, JP-A-2006-249934).
    Summary of the invention
    The plate heat exchangers, each of which comprises a plurality of washboard-type plates which are stacked on top of one another, are roughly classified into two types, i.e., a "gasketed" type. , wherein the plates are joined with a seal between them, and a "brazed" type, wherein the plates are integrally incorporated into each other by brazing. The first "packer type" heat exchanger is advantageous since it can be disassembled to facilitate its internal cleaning, but it is disadvantageous because it is expensive, and a risk of leakage through the seal, etc. is possible. Thus, the "solder" type heat exchangers are widely used currently as plate heat exchangers.
    The plate heat exchanger has a small size and excellent performance. However, the spaces between the plates are relatively small, i.e., about 2 to 3 mm, and therefore foreign bodies such as dust entering a water cooling system can accumulate in the plate heat exchanger, the flow of the cooling water is disturbed, and therefore the performance of the heat exchanger is reduced, so that the heat exchanger must be cleaned often.
    To prevent clogging of spaces. located between the plates by foreign bodies such as dust, a method may be implemented, according to which a strainer is arranged on the intake side of the water cooling system in the plate heat exchanger so as to separate the foreign bodies such as dust from the cooling water using the strainer, and then the cooling water is supplied to the heat exchanger. As indicated above, the spaces between the plates in the plate heat exchanger are about 2 to 3 mm, which is relatively smaller than the tube diameters, which are about 6 to 20 mm. , in a conventional calender heat exchanger. So even foreign bodies. such as dust, contained in the cooling water, which have not yet caused a problem, in the shell and tube heat exchangers, cause a problem of obstruction of the spaces between the plates, resulting in a decrease in the performance of the 'heat exchanger.
    In order to eliminate - the aforementioned problem, a strainer is arranged upstream of the plate heat exchanger so as to separate foreign bodies such as dust from the cooling water. However, when a strainer has an extremely fine mesh size with a high degree of separation accuracy to use, the strainer is obstructed early. In order to prevent this obstruction, the separation precision has been set to a moderate value.
    Thus, microscopic foreign bodies such as. Dust, mud or the like contained in the cooling water which is generally supplied by a cooling tower can pass through the strainer, and thus the foreign bodies obstruct the spaces between the plates in the heat exchanger. plates, causing a problem of decreased performance of the heat exchanger.
    The present invention is advisable in view of the above-mentioned problems, and thus it is an object of the present invention to provide a water-cooled air compressor which is capable of suppressing the decrease in the performance of the heat exchanger caused by 1 obstructing spaces between the plates in the heat exchanger by foreign bodies such as dust.
    For this, according to a first aspect of the present invention, there is provided a water-cooled air compressor comprising a plate heat exchanger intended to effect a heat exchange between the compressed air coming from a compressor body and the water characterized by providing a first solenoid valve and a second solenoid valve which are respectively provided in a cooling water supply pipe and a cooling water discharge pipe of the heat exchanger, a pipe of air supply communicating between a compressed air supply pipe provided on the outlet side of the heat exchanger, and the cooling water discharge pipe, a third solenoid valve and a non-return valve which are provided in the air supply line, a discharge line which is connected to the cooling water supply line of the heat exchanger of the to be connected thereto, a fourth solenoid valve provided in the discharge pipe, and a control device for controlling the opening and closing of the first to the fourth solenoid valve. According to a second aspect of the present invention, in the first aspect of the present invention, the control device comprises a storage part storing moments at which operations are performed to close the first solenoid valve, to close the second solenoid valve, to opening the third solenoid valve and opening the fourth solenoid valve in the order mentioned, and a calculating part intended to deliver opening and closing signals to the first to the fourth solenoid valve at the moments stored in the part storage, in response to a stop signal relative to the compressor body.
    According to a third aspect of the present invention, in the first aspect of the present invention, the control device comprises a storage part which stores moments to which, are carried out closing operations of the first solenoid valve, closure of the second solenoid valve , opening the third solenoid valve and opening the fourth solenoid valve in the order mentioned, and a defined operating time of the compressor body, and a calculating part for delivering opening and closing signals to the first to the fourth solenoid valve in response to a stop signal relating to the compressor body when an operating time of the compressor body exceeds the defined operating time stored in the storage part.
    From. further, according to a fourth aspect of the present invention, in the first aspect of the present invention. The present invention, the cooling water supply pipe and the cooling water discharge pipe of the heat exchanger are respectively provided with pressure sensors, and the device. control comprises a storage portion which stores moments at which operations are performed for closing the first solenoid valve, closing the second solenoid valve, opening the third solenoid valve and opening the fourth solenoid valve in the order mentioned, and a pressure differential defined between the cooling water supply pipe and the cooling water discharge pipe, and a calculating portion for calculating a pressure differential from output signals of the cooling sensors. pressure, and delivering opening and closing signals from the first to the fourth solenoid valve to the moments stored in the storage portion in response to a stop signal relative to the compressor body when the pressure differential exceeds the differential of defined pressure.
    According to the present invention, foreign bodies such as dust accumulated in the cooling water passages in the plate heat exchanger can be removed from the cooling water passages by means of a portion of compressed air in response to a compressor stop. Thus, it is possible to improve the removal capacity of foreign bodies. Therefore, the performance of the plate heat exchanger can not be reduced, and thus it is possible. to improve the performance of the entire compressor.
    Other objects, features, and advantages of the invention will become apparent from the following description of the embodiments of the invention taken in conjunction with the accompanying drawings.
    Brief description of the drawings
    Fig. 1 is a configuration view illustrating a water-cooled air compressor in one embodiment of the present invention; Fig. 2 is a view illustrating a configuration of a plate heat exchanger, for example, which is used in the air compressor of the embodiment of the present invention; Fig. 3 is a timing diagram for controlling the water-cooled air compressor according to the present invention; and Fig. 4 is a configuration view illustrating a water-cooled air compressor in another embodiment of the present invention.
    Detailed Description of the Preferred Embodiments
    An explanation will be provided as to a water-cooled air compressor according to the present invention in the form of preferred embodiments with reference to the accompanying drawings.
    Figures 1 and 2 illustrate a water-cooled compressor. in one embodiment of the present invention, wherein Fig. 1 is a configuration view illustrating the water-cooled air compressor in the embodiment of the present invention, and Fig. 2 is a configuration of a heat exchanger for example, used in the water-cooled air compressor in the embodiment of the present invention, and Fig. 3 is a control timing chart for the water-cooled air compressor in the embodiment. of the present invention.
    Referring to FIG. 1, there is illustrated a water-cooled air compressor unit 1 which comprises a compressor body 2 driven by a motor 3. The compressor body 2 is connected thereto on its suction side with the engine. using an air suction line 4 which is provided on its suction side with a suction filter 5.
    The compressor body 2 is connected on its discharge side to a compressed air intake port of a plate heat exchanger 7 via a compressed air discharge pipe 6. The heat exchanger with plates 7 is connected thereto at its compressed air outlet port by means of a compressed air supply pipe 8 in which a nonreturn valve 9 is provided.
    The plate heat exchanger 7 comprises a plurality of plates 7A, 7B, 7C which are stacked on each other, as illustrated in FIG. 2, so as to define between them compressed air passages 7D. and cooling water passages 7A alternately in the stacking direction of the plates.
    Referring again to Figure 1, the cooling water passages in the heat exchanger at. plates 7 are connected on the inlet side of the water passages "cooling with a cooling water pipe 10 to which are connected a first solenoid valve 11 and a strainer 12. The water passages, cooling in the plate heat exchanger 7 are connected thereto on the outlet side of the cooling water passages by means of a cooling water discharge pipe 13 which is connected to a second solenoid valve 14.
    A compressed air supply pipe 8 on the outlet side of the plate heat exchanger 7 and a cooling water discharge pipe 13 on the outlet side of the plate heat exchanger 7 are connected to one another. to the other via an air supply line 15 in which a third solenoid valve 16 and a non-return valve 17 for preventing the compressed air from returning from the water discharge pipe 13 to the compressed air supply line 8 are connected by being arranged in the order mentioned when looking in the direction from the compressed air supply line 8 to the exhaust pipe cooling water 13.
    The cooling water supply line 10 on the inlet side of the plate heat exchanger 7 is provided with a discharge line 18 which starts therefrom. The evacuation pipe 18 is connected thereto by means of a fourth solenoid valve 19.
    The first solenoid valve 11 in the cooling water supply pipe 10, the second solenoid valve 14 in the cooling water discharge pipe 13, the third solenoid valve 16 in the. The air supply line 15 and the fourth solenoid valve 19 in the discharge line 18, which are indicated above, are controlled by a control device 20 so as to be open and closed. The control device 20 comprises a storage part 20a storing opening and closing moments of the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19, and a calculation part 20b which receives the opening and closing moments stored in the storage part 20a in response to a stop signal relative to the body of the compressor 2, and which delivers opening and closing signals for the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19, the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19.
    An explanation will be given as to the opening and closing moments of the first electrovalve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19, for example, with reference to FIG.
    During operation of the compressor body 2, the first solenoid valve 11 and the second solenoid valve 14 are open while the third solenoid valve 16 and the fourth solenoid valve 19 are closed. In this condition, when the body of the compressor -2 stops, the opening and closing command is performed as follows: the control device 20 first closes the first solenoid valve 11 at a time t1 (corresponding to the moment of the compressor body stop 2) in response to a stop signal A relative to a compressor body 2, which is delivered by a controller (not shown) for the compressor, and then closes the second solenoid valve at a time t2. Then, the control device 20 opens the third solenoid valve 16 at a time t3, then opens the fourth solenoid valve 19 at a time t4.
    The reason for the. second solenoid valve 14 is closed at a time t2 after the first solenoid valve 11 has been closed is that the cooling water remains in the cooling water passages in the plate heat exchanger 7, and that the residual pressure in the system, cooling water is reduced as much as possible.
    Next, an explanation will be given as to the operation of the water-cooled air compressor in the embodiment of the present invention with reference to Figs. 1 to 3.
    With reference to FIG. 1, the compressor body 2 which is driven by the motor 3 compresses the atmospheric air which is sucked by the suction filter 4, to a predetermined pressure, and evacuates the air thus compressed. . The compressed air having a high temperature, and discharged from the compressor body 2, undergoes a heat exchange with the cooling water in the plate heat exchanger 7, and is then discharged to the outside of the unit 1 to With the aid of the check valve 9. At this moment, as illustrated in FIG. 2, the first solenoid valve 11 and the second solenoid valve 14 are open while the third solenoid valve 16 and the fourth solenoid valve 19 are closed.
    With reference again to FIG. 1, in the plate heat exchanger 7 which carries out a heat exchange between the compressed air at a high temperature and the cooling water, the cooling water flows into the first solenoid valve 11 to open and close the cooling water supply pipe 10 and the strainer 12 so as to remove foreign bodies contained in the cooling water, and then flows into the cooling water passages in the plate heat exchanger 7. The cooling water is heat exchanged with the compressed air at an elevated temperature in the plate heat exchanger 7, and is then discharged through the water discharge pipe. cooling 13 and the fourth solenoid valve 14.
    Then, when the controller (not shown) for the compressor stops the operation of the compressor body 2, the controller 20 receives a stop signal A. relative to the compressor body 2, and as is illustrated in Figure 3, closes the first solenoid valve 11 at time tl which is identical to that of the stop of the compressor body 2, then closes the second solenoid valve 14 at the time. t2 with a slight delay from time t1 so that the cooling water remains in the cooling water passages in the plate heat exchanger 7. The reason why the second solenoid valve 12 is closed with a slight delay by compared to the first solenoid valve 11 is that it is. desirable to minimize the residual pressure in the cooling water system.
    Then, in response to an instruction from the controller 20, the third solenoid valve 16 in the air supply line 15 is opened at time t3, as illustrated in FIG. 3, and, therefore, the air is supplied to the cooling water passages in the plate heat exchanger 7 by means of the non-return valve 17 'using the residual pressure in the compressor body 2. Then, in response to an instruction from 20 of the control device 20, the fourth electrovalve 14 in the discharge pipe 18 is open at the moment t4, as illustrated in FIG. 3. Therefore, the cooling water which has remained in the heat exchanger at plates 7 flows in the opposite direction into the cooling water passages in the plate heat exchanger 7, and discharges therefrom. It is thus possible to remove the foreign bodies such that the dust obstructing the cooling water passages in the plate heat exchanger 7. Then, the control device 20 causes the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19 return to their original opening and closing positions.
    According to the aforementioned embodiment, the foreign bodies such as dust obstructing the cooling water passages in the plate heat exchanger 7 can be removed and removed from it by means of a part of the compressed air in response to a compressor shutdown, and therefore it is possible to improve the removal of foreign bodies. Thus, the performance of the plate heat exchanger 7 can not be reduced. It is thus possible to improve the performance of the entire compressor.
    It is noted in the above-mentioned embodiment, in which a portion of the compressed air is supplied to the cooling water passages in the plate heat exchanger 7 in response to a shutdown of the compressor so as to eliminate and removing the foreign bodies such as dust obstructing the cooling water passages in the plate heat exchanger 7, that the air supply of the cooling water passages in the plate heat exchanger 7 can be carried out at each stop of the compressor.
    It is noted in the aforementioned embodiment wherein the controller 20 is provided in addition to the controller for the compressor itself, that the controller 20 may be integrated with the controller for the compressor.
    In addition, as another embodiment of the present invention, it. It is possible to predict the configuration in which the compressor operating time is monitored, and if the operating time exceeds a defined time, the air is supplied to the cooling water passages in the plate heat exchanger 7. In this case, the calculating portion 20b receives the operating time from the controller for the compressor and controls the opening times and. closing the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19 when the operating time exceeds the defined duration that has been stored in the storage part 20a in the control device In response to a stop signal relating to the compressor, as shown in FIG. 3.
    Referring to Fig. 4 which is a configuration view illustrating a water-cooled air compressor in another embodiment of the present invention and in which the same reference numerals are used to indicate the same parts as those illustrated in Figure 1 so as to reduce the detailed description thereof, the water-cooled air compressor of this embodiment will be explained.
    In this embodiment, the cooling water supply pipe 10 and the cooling water discharge pipe 13 of the plate heat exchanger 7 are respectively connected to pressure sensors 21, 22. and, thus, a configuration is possible whereby air is supplied to the cooling water passages in the heat exchanger 7 in response to a compressor stop if a difference between the pressures detected by the two pressure sensors. 21, 22 exceeds a value that has been previously defined. In this configuration, the defined value has been stored in the storage portion 20a of the controller 20 while the calculating portion 20b calculates a difference between the pressures detected by the pressure sensors 21, 22, and therefore the opening and closing moments of the first solenoid valve 11, the second solenoid valve 14, the third solenoid valve 16 and the fourth solenoid valve 19 can be controlled, as illustrated in FIG. 3, in response to a signal from compressor shutdown if the pressure difference exceeds the set value.
    In the aforementioned embodiment in which the cooling water supply pipe 10 and the cooling water discharge pipe 13 of the plate heat exchanger 7 are respectively connected to the pressure sensors 21, 22, It is noted that a pressure differential detector can be connected between the cooling water supply pipe 10 and the cooling water discharge pipe 13 so that a detection signal is delivered by the detector. differential pressure at the control device .20. In addition, the cooling water supply pipe 10 can be connected to a flow detector from which a detection signal is delivered to the control device 20.
    In the aforementioned embodiments, in which foreign bodies such as dust clogging. Cooling water passages in the plate heat exchanger 7 can be removed and removed therefrom with a portion of the compressed air in response to compressor shutdown.
    U
    It is possible to improve the cleaning performance with regard to the removal of foreign bodies from the plate heat exchanger. As a result, the performance of the plate heat exchanger 7 can not be reduced. It is thus possible to improve the performance of the entire plate heat exchanger 7. In addition, the cleaning intervals of the plate heat exchanger 7 can be extended. It is thus possible to improve the operating capacity and the safety of the latter.
    It should be understood by those skilled in the art that, although the above description has been made with respect to embodiments of the invention, the invention is not limited thereto and various changes and modifications may be made without departing from the spirit of the invention and the scope of the appended claims.
    权利要求:
    Claims (4)
    [1]
    A water-cooled air compressor comprising a plate heat exchanger for cooling compressed air from a compressor body with cooling water, characterized by providing a first solenoid valve and a second solenoid valve which are respectively provided in a cooling water supply pipe and a cooling water discharge pipe of the plate heat exchanger, an air supply pipe connecting a supply pipe. in compressed air provided on the outlet side of the heat exchanger to the cooling water discharge pipe., a third solenoid valve and a non-return valve connected to the air supply pipe, a pipe of evacuation provided on the cooling water supply line of the heat exchanger from there, a fourth solenoid valve connected to the discharge pipe, and a control device for controlling the opening and the closing the first to the fourth solenoid valve.
    [2]
    2. Water-cooled air compressor according to claim 1, the control device comprising a storage part storing moments at which the closing operations of the first solenoid valve, closing the second solenoid valve, opening the third solenoid valve. and opening the fourth solenoid valve are performed in the order mentioned, and a calculating portion for supplying opening and closing signals to the first to the fourth solenoid valve at the moments stored in the storage portion in response to a stop signal relative to the compressor body.
    [3]
    3. Water-cooled air compressor according to claim 1, characterized in that the control device comprises a storage part storing moments to which the closing operations of the first solenoid valve, closing the second solenoid valve, opening of the third solenoid valve and the opening of the fourth solenoid valve are performed in the order mentioned, and μηε defined operating time of the compressor body, and a calculation part intended to deliver opening and closing signals to the first to the fourth solenoid valve in response to a stop signal relative to the compressor body when the operating time of the compressor body exceeds the defined operating time.
    [4]
    4. Water-cooled air compressor according to claim 1, characterized in that the cooling water supply pipe and the cooling water discharge pipe of the heat exchanger are respectively connected to pressure, and the control device comprises a storage portion storing moments at which the closing operations of the first solenoid valve, closing the second solenoid valve, opening the third solenoid valve and opening the fourth solenoid valve are performed in the order mentioned, and a pressure differential defined between the cooling water supply pipe and the cooling water discharge pipe, and a calculating means for calculating a pressure differential from the cooling signals. output of the pressure sensors, and to deliver opening and closing signals to the first to the fourth solenoid valve at the moment s stored in the storage part in response to a stop signal relating to the compressor body.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1994011694A1|1992-11-12|1994-05-26|Clyde Sootblowers Limited|Cleaning apparatus for heat exchange surfaces and an improved nozzle device therefor|
    WO1998001688A1|1996-07-04|1998-01-15|Ralf Blomgren|A valve for changing the direction of flow in pipes leading to/from a heat-exchanger|
    JP2006249934A|2005-03-08|2006-09-21|Hitachi Industrial Equipment Systems Co Ltd|Oil-less screw air compressor|
    US3152753A|1961-10-19|1964-10-13|Renard P Adams|Heat exchanger method and apparatus|
    US4635712A|1985-03-28|1987-01-13|Baker Robert L|Heat exchanger assembly for a compressor|
    SU1682626A1|1989-03-14|1991-10-07|Производственное объединение "Херсонский комбайновый завод им.Г.И.Петровского"|Compressor unit and arrangement to control cooling of compressor unit|
    KR940000217B1|1989-06-05|1994-01-12|가부시기가이샤 히다찌 세이사꾸쇼|Screw compressor|
    JPH0387087U|1989-12-26|1991-09-04|
    US5226471A|1991-09-23|1993-07-13|General Electric Company|Leak isolating apparatus for liquid cooled electronic units in a coolant circulation system|
    US5386873A|1993-06-09|1995-02-07|Ingersoll-Rand Company|Cooling system for engine-driven multi-stage centrifugal compressor|
    US5433246A|1994-04-05|1995-07-18|Horton; George F.|Pressure coupling for cleaning water lines|
    US5713724A|1994-11-23|1998-02-03|Coltec Industries Inc.|System and methods for controlling rotary screw compressors|
    US5603228A|1995-10-13|1997-02-18|Barthold; Scott|Automatic blow-out system for snowmaking machine water hoses|
    BE1013692A3|2000-09-19|2002-06-04|Atlas Copco Airpower Nv|HIGH PRESSURE, multi-stage centrifugal compressor.|
    US20020050345A1|2000-10-31|2002-05-02|Haruo Miura|Heat exchanger for air compressor|
    IL144962D0|2001-08-16|2002-06-30|Weizman Michael|System and method for detecting flaws in plate-type heat exchanger|
    CN100383388C|2003-07-30|2008-04-23|株式会社神户制钢所|Compressor|
    JP4418321B2|2003-07-30|2010-02-17|株式会社神戸製鋼所|Compressor and operation method thereof|
    JP2005221109A|2004-02-04|2005-08-18|Hitachi Engineering & Services Co Ltd|Cleaning method and device of plate-type heat exchanger|
    JP4231444B2|2004-03-29|2009-02-25|オリオン機械株式会社|Cooling device operation control method|
    US20060272681A1|2005-06-06|2006-12-07|Steinkiste Paul S|Water coil blow down system|
    GB2443421B|2006-08-30|2009-02-18|Compair Uk Ltd|Improvements in compressors units|JP5236619B2|2009-11-30|2013-07-17|株式会社日立産機システム|Injection scroll air compressor|
    US9234530B1|2013-03-13|2016-01-12|Exelis Inc.|Thermal energy recovery|
    US9702358B2|2013-03-15|2017-07-11|Ingersoll-Rand Company|Temperature control for compressor|
    CN104819128A|2015-04-27|2015-08-05|苏州市华宁机械制造有限公司|Water cooling mechanism for air compressor|
    CN106933271A|2017-05-03|2017-07-07|辽宁沃德玛克工业设备制造有限公司|A kind of device for recycling generation hot gas in air compression process|
    CN112253427A|2020-10-24|2021-01-22|江西智奇压缩机有限公司|Heat energy recovery device for air compressor|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2007161839|2007-06-19|
    JP2007161839A|JP4991408B2|2007-06-19|2007-06-19|Water-cooled air compressor|
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