• 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:
    An apparatus for the adsorptive cleaning of gases comprises a rigid hermetically sealed housing provided internally with an inner vessel connected with the outer housing by a fluid carrying duct which is yieldable along the axis of the inner housing. The inner housing rests upon a grate and can be surrounded by a layer of thermal insulation. A filling of the adsorbent is provided in the inner vessel which is free from the usual bottoms carrying beds of adsorbent.
    公开号:SU878182A3
    申请号:SU782672199
    申请日:1978-10-11
    公开日:1981-10-30
    发明作者:Вагнер Норберт
    申请人:Линде Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) DEVICE FOR ADSORPTION
    权利要求:
    Claims (3)
    [1]
    one
    The invention relates to the purification of gases by the method of adsorption.
    A device for adsorptive gas cleaning is known, which includes an internal tank with a grate and an adsorbent layer placed on it and an external tank with gas inlet and outlet nozzles, one of which is connected to the internal tank 1.
    A disadvantage of this device is that as a result of the expansion of the internal capacitance Q in the regeneration process, stresses arise in the welded joints between the internal and external capacitances, which are especially dangerous with frequent fluctuations of the temperature tag.
    In addition, the internal capacity of a known js gas adsorption device is only insufficiently protected from pressure fluctuations. According to one embodiment of the known device, a gas inlet or outlet pipe 20 is located between the inner and outer containers, equipped with a small orifice, which serves to equalize the pressure of the inner container and isolate the fugier, so that possible excess pressure can be eliminated. But it is, especially with modern GAS CLEANING.
    with variable pressure adsorption methods, in which the pressure must be rapidly retarded and C1 shrunk, is insufficient, therefore, the known design does not meet modern requirements.
    The purpose of the invention is to increase the reliability of the device.
    This goal is achieved by the fact that in the device for adsorption gas cleaning, including an internal tank with a grate and an adsorbent layer placed on it and an external tank with gas inlet and outlet pipes, one of which is connected to the internal tank, the internal tank is open in the lower part, and the pipe connected to it is equipped with a compensator.
    It is advisable that the compensator be made in the form of bellows.
    It is also advisable that the nozzle connected to the internal container be equipped with a pipe placed inside it.
    The internal capacity of the proposed adsorber is designed in such a way that it can compensate for the fluctuations of heat in the vertical plane. This is achieved by the fact that in the case of high
    and a narrow internal branch pipe, which is connected to the internal container (hereinafter the first branch pipe), is equipped with a compensator, for example, with two pipes or bellows entering one another, while at relatively. wide and not very high internal capacity, namely with the so-called recumbent adsorbers, it is advisable to perform a movable upper wall of the internal capacity (instead of or in addition to the rolling performance of the first pipe). Since the material, especially used for bellows, is sensitive to heat, it is envisaged to place a protective tube inside the bellows through which hot gases are passed. The shape of the inner tank is basically like a bell. Internal capacity has two functions. On the one hand, it should, especially in connection with the insulating lining placed between the inner and outer tanks, prevent the heat introduced into the system from regenerating the adsorbent with hot gases from the adsorbent to the outer tank. This task is performed by the inner container opened at the bottom, if its bottom edge reaches approximately to the zone,. in which there is an adsorbent layer. In this case, it is essential that the heated regenerating gas, which, as a rule, is introduced in countercurrent to the gas to be cleaned, enters the upper part of the adsorber and enters from the lower part of the adsorber. Otherwise there is, albeit a small one, the danger that hot regenerating gases will fall between the inner and outer tanks, which causes heat losses. On the other hand, the internal capacity must be designed so that it is not subjected to any compressive force.
    The design prevents, after regeneration, which is usually carried out under reduced pressure, with pressure being applied to the adsorber, in the internal vessel, pressure is not created for which it is not intended. Due to the proposed design, the pressure applied by the gas to be cleaned is distributed evenly throughout the inner zone of the inner tank and over the zone between the inner and outer tanks, so that the inner tank is not subjected to any compression loads. The layer of adsorbent is located inside the inner container on the reamer, the holes of which are smaller than the size of the grains of the adsorbent, so that the latter cannot pass through the grid; at the same time, this lattice ensures an even distribution, which, as a rule, is passed from bottom to top up of the gas to be purified over the entire adsorbent layer.
    The bell-shaped reservoir is freely located on the adsorbent lattice.
    With this construction, optimal mobility is created during thermal expansion, since the internal capacity can also expand to the side, which is especially important with methods in which the regeneration temperature is much higher than the adsorption temperature,
    It is advisable to make an internal container from a material having a significant cat thermal expansion coefficient. In this way, thermal expansions due to temperature fluctuations between adsorption and regeneration can be minimized. In accordance with this, there are less demands on the elasticity of the compensator placed at the first nozzle, which makes it cheaper to make. The inner container is thin to reduce its heat capacity. Under these conditions, however, especially with horizontally positioned internal tanks, it may be necessary to provide them with grooves and stiffening rings. In this way, a structure is obtained, the heat capacity of which is considerably less than that of internal tanks with thick walls that do not need stiffening rings.
    The proposed embodiment of the inner tank, which in the upper part is gas-tight, but is movably connected to the outer tank, can be applied to all types of adsorbers. It is suitable not only for healthy standing adsorbers and for so-called lying adsorbers, but also for such structures in which there are several separated steepness from each other internal tanks inside a pressure-resistant external tank. This requires a large outer, but smaller internal containers that are more advantageous to manufacture.
    The inner tank is provided with outer insulation, which is made, for example, in ideal insulation mats of slag or mineral fiber with a thickness of approximately 25 mm.
    If the proposed device works with a small temperature difference between regeneration and adsorption, it is possible to reject the additional insulation of the internal container, since the gas between the internal and external tanks represents a sufficient thermal protection.
    The latter design is recommended especially if the regeneration time is relatively short, which is the case if the adsorbent must only be partially regenerated, i.e. on the outlet side of the purified gas,
    According to another version of the proposed adsorbent, distribution sieves are placed before and after the adsorbent layer, which consist of perforated plates or metallic fabric in order to achieve a good gas distribution over the entire cross section of the adsorbent. In addition, guide sheets can be placed along the path of the gas from the entrance to the adsorbent bed. The size, wall thickness, quantity and height of the adsorbent bed and other structural details of the proposed adsorber depend on many parameters, for example, on the temperature of adsorption and desorption, gas pressure, gas flow rate, amount of contaminants, desired gas purity and duration of individual cycles adsorption and desorption. It can be stated that with well-known structures of which the type is, the outer diameter of the adsorber is 1–4 m, the thickness of the walls of the outer container is 6–12 mm, and the inner capacity is 2–3 mm. The diameter or length of the edges of the guide plates is 1.2–2. preferably 1.4-1.6 of the internal diameter of the gas inlet. The distance between the guide sheets and the gas inlet is 0.8-1.8, preferably 1.3-1.5 of the inner diameter of the nozzle, and with curved sheets this distance is measured from points furthest from the nozzle. With the commonly known adsorbers, the length is 2-12 m. The outer diameter of 3-5 m is the thickness of the walls of the outer container - approximately 12 mm and the inner container about 2 mm. FIG. 1 shows a vertical adsorb with one internal capacity; in fig. 2 - horizontal adsorber; in fig. 3 - adsorber with several internal tanks. The adsorber has an external pressure-resistant container 1 and a thin-walled internal container 2. The internal container 2 is freely placed on the grid 3, which is fixed to the external container 1 by the supports 4. Inside the internal container 2 on the grid 3 there is a layer 5 of the adsorbent. The inner receptacle 2 is provided with an outer insulating mat 6. The adsorber also has a nozzle 7, which is designed for visibility with the help of a bellows. The movable cutting rod 7 is part of the system 8 for supplying and discharging gas, the coir is provided with a gas supply pipe 9 for supplying hot regenerating gas and a nozzle 10 for outputting the purified gas. At the lower end of the outer container 1, a rigid nozzle 11 is provided for introducing and withdrawing gas. A heat insulating flap 12 is placed at the upper end of this nozzle. For better distribution of the gas flows, gas guide leaves 13 and 14 and distribution grids 15 and 16 are provided in the adsorber. A hatch 17 is provided for supplying the adsorbent and possible repair. . 6 The gas to be cleaned is passed through the nozzle 11 and using the guide sheet 14 and the distribution sieve 16 it is evenly distributed over the entire surface of the grid 3, then flows through the layer 5 of the adsorbent, where the impurities are retained. The cleaned gas leaves layer 5 and leaves the adsorber through pipe 7 and pipe 10. If the adsorbent is saturated with contaminants, turn off the flow of gas to be purified, reduce the pressure in the adsorber through pipe 10 to regeneration pressure and then pass the mountains under protective pipe 9 under reduced pressure whose regenerating gas. The hot regenerating gas is distributed evenly over the surface of layer 5 by means of guide sheet 13 and distribution screen 15. When passing through layer 5, the gas temperature rises, causing the reactive pressure of the adsorbed components to rise and they are removed with the regenerating gas from the adsorbent layer. The reclaiming gas with trapped contaminants leaves the adsorber through pipe 11. After the completion of the regeneration, the supply of the regenerating gas is stopped and the adsorber is allowed to cool before a new adsorbable cycle. FIG. 1 shows another variant of the proposed device, namely a horizontal adsorber. In this embodiment, the pipe system 8 is stationary. Thermal oscillations of the internal tank, released by passing the regenerating gas, are compensated by the thin-walled surface of the internal container 2. But even in this case, the pipe 8 is supplied with a compensator. The principle of operation of such a horizontal adsorber is the same as the principle of operation of the vertical adsorber (Fig. 1). Two manholes 17 are provided in the horizontal adsorber. In addition, gas distribution screens 15 and 16 have been doubled and gas sheets 13 and 14 have been curved. For better gas distribution, oblique guide plates 18 and 19 are provided in the upper and lower empty space. In FIG. 3 shows another variant of the proposed device. Here inside the pressure resistant outer container 1 are placed some thin-walled internal containers.
    [2]
    2. Each thin-walled inner tank is provided with nozzles 7 and 11. To simplify the drawing, it is necessary for most methods to insulate the inner tank 2, and hatches are not shown. Shown in FIG. 3, the adsorber works in principle in the same way as the adsorber of FIG. 1. Thus, the proposed gas cleaning device is reliable in operation, since its components are protected from the effects of increased pressure and temperature both during the adsorption process and during the regeneration process of the adsorbent. Rumula of Rete n and 1. A device for adsorption gas cleaning, including an internal tank with a grate and an adsorbent layer placed on it and an external tank with gas inlet and outlet nozzles, one of which is connected to the internal tank, characterized in that, in order to increase the reliability of the device.
    eight
    12, the inner container is open at the bottom, and the pipe connected to it is equipped with a compensator. 2. The device according to claim 1, that is, so that the compensator is made in the form of sylphria.
    [3]
    3. The device according to claim 1, of which is connected with the fact that the nozzle connected to the internal container is provided with a pipe located inside it. Sources of information taken into account in the examination I. US Patent No. 2083732, cl. 55-196, 1937.
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    同族专利:
    公开号 | 公开日
    SE7810871L|1979-04-19|
    DE2746673A1|1979-04-26|
    SE438266B|1985-04-15|
    IT7828823D0|1978-10-17|
    DE2746673C2|1985-05-09|
    ZA785830B|1979-09-26|
    MX146469A|1982-06-29|
    GB2006041B|1982-03-31|
    FR2406468A1|1979-05-18|
    GB2006041A|1979-05-02|
    US4364753A|1982-12-21|
    FR2406468B1|1985-10-25|
    JPS5468777A|1979-06-02|
    IT1099959B|1985-09-28|
    IN151244B|1983-03-12|
    BR7806851A|1979-05-08|
    CA1102256A|1981-06-02|
    ES474056A1|1979-04-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE635267A|
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    DE515296C|1926-06-08|1931-01-03|Rech S Et D Expl S Petrolifere|Method and device for the separation and recovery of gases and vapors from gas mixtures by means of solid absorbents, in particular active charcoal, and by re-expelling the absorbed substances with steam after the absorbents have been preheated|
    US1840031A|1926-08-21|1932-01-05|Permutit Co|Water softening apparatus|
    US1931989A|1931-05-25|1933-10-24|Davis Emergency Equipment Comp|Air-purifying device|
    US2083732A|1932-11-22|1937-06-15|Pittsburgh Res Corp|Adsorbent apparatus|
    US2768200A|1953-05-07|1956-10-23|Standard Oil Co California|Process for conducting chemical reactions involving corrosive materials|
    US2790505A|1954-08-02|1957-04-30|United Gas Corp|Methods of and means for dehydrating and processing fluid streams|
    US2772747A|1955-08-18|1956-12-04|Union Carbide & Carbon Corp|Adsorber apparatus|
    US2861651A|1957-10-07|1958-11-25|Jefferson Lake Sulphur Co|Cyclic adsorption processes for recovery of h2s from natural gas employing two activation cycles|
    US3038790A|1958-06-09|1962-06-12|Midland Ross Corp|Contacting of aggregate materials with fluids|
    US2995208A|1958-08-15|1961-08-08|Phillips Petroleum Co|Adsorption process and apparatus|
    US3254476A|1962-03-16|1966-06-07|Phillips Petroleum Co|Expansion joint|
    US3339737A|1963-03-15|1967-09-05|Anthony J Kiscellus|Water softener regenerating means|
    US3731460A|1970-12-16|1973-05-08|Mitsubishi Heavy Ind Ltd|Regenerative filtration apparatus|
    DE2507817C3|1975-02-24|1980-06-19|Leopold Siegrist Kg Tabakfabrikate, 7500 Karlsruhe|Device for the recovery of water-insoluble solvents from air|FR2541588B1|1983-02-28|1985-07-05|Air Liquide|CONTAINER AND PURIFICATION PLANT BY ADSORPTION|
    US4946797A|1986-06-13|1990-08-07|Cem Corporation|Microwave-based Kjeldahl method|
    US4882286A|1986-06-13|1989-11-21|Cem Corporation|Digestion apparatus useful for a kjeldahl method|
    FI82200C|1986-08-28|1991-02-11|Seinaejoen Kylmaekone Oy N Kon|FOERFARANDE OCH ANORDNING FOER AOTERVINNING AV I GASER BEFINTLIGA FOERORENINGAR, ISYNNERHET LOESNINGSMEDEL.|
    US4703736A|1986-09-25|1987-11-03|Chrysler Motors Corporation|Fuel vapor containment device|
    DE3921797C2|1988-07-09|1994-09-15|Daimler Benz Ag|Process for removing sulfur dioxide and sulfur trioxide|
    EP0357897B1|1988-08-31|1992-05-06|MEIER, René|Apparatus for continuously cleaning spent air containing a solvent|
    FR2667800B1|1990-10-11|1992-12-04|Air Liquide|ADSORPTION SEPARATION PROCESS, AND ADSORBER.|
    USRE35913E|1990-10-11|1998-10-06|L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude|Adsorber and process for the separation by adsorption|
    DE4300988C1|1993-01-15|1994-04-07|Ppv Verwaltungs Ag Zuerich|Oxygen-enriched air generator contg. zeolite bed giving pure prod. - with chamber in outlet system opened during adsorption and sealed during regeneration phase, e.g. for use in vehicle or aircraft|
    US5672196A|1995-08-01|1997-09-30|The Boc Group, Inc.|Process and apparatus for the separation of gases|
    SE517561C2|1996-03-04|2002-06-18|Aga Ab|Process and apparatus for producing a gas by separation from a gas mixture|
    SE9600843L|1996-03-04|1997-09-05|Aga Ab|separation device|
    US8500884B2|2010-09-27|2013-08-06|Uop Llc|Vessel and process pertaining to an impermeable impingement plate|
    CN103402605B|2011-03-09|2016-03-02|气体产品与化学公司|Vertical baffle plate in Level Adsorption container|
    RU2583461C1|2014-09-23|2016-05-10|Олег Савельевич Кочетов|Kochetov vertical adsorber|
    RU2659048C2|2015-11-10|2018-06-27|Анна Михайловна Стареева|Stareeva adsorbent|
    EP3736034A1|2019-05-08|2020-11-11|Linde GmbH|Pressure vessel for with internal insulation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2746673A|DE2746673C2|1977-10-18|1977-10-18|Device for the adsorptive cleaning of gases|
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