Low-temperature gas recovery device

Abstract

The utility model relates to the technical field of low-temperature gas recovery, and discloses a low-temperature gas recovery device which comprises a bottom plate, the four supporting legs are fixedly connected to the bottom face of the bottom plate, and the top face of the bottom plate is fixedly connected with a filtering assembly and a recycling assembly; the recycling assembly is located on the right side of the filtering assembly, the filtering assembly comprises a filtering box fixedly connected to the top face of the bottom plate, an air inlet pipe is arranged above the left side of the filtering box, the bottom end face of the air inlet pipe fixedly penetrates through the top face of the filtering box and extends into the filtering box, and a partition plate is fixedly connected to the inner side face of the filtering box. Through the filtering assembly, low-temperature gas entering the filtering box is filtered through a filtering net plate, impurities doped in the low-temperature gas are prevented from entering the sucking pump, meanwhile, a first rotating rod is used for driving a cleaning brush to rotate, the cleaning brush is made to clean the filtering net plate, the impurities are prevented from blocking the filtering net plate, and filtering is not affected; and the service life of the low-temperature gas recovery device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic gas recovery technology, specifically to a cryogenic gas recovery device. Background Technology

[0002] Cryogenic liquefied gases refer to gases that are partially liquid during transportation due to extreme low temperatures. Their critical temperature (Tc) is generally below or equal to -50°C. The most common of these gases are oxygen, nitrogen, argon, hydrogen, and helium. Cryogenic liquids are prone to vaporization inside cryogenic tanks during the filling process; therefore, it is necessary to recover the vaporized cryogenic gases.

[0003] Currently, most existing methods for recovering cryogenic gases involve extracting them using a pump and then passing them into a condenser. However, since the cryogenic gas is not filtered, impurities in the gas can easily damage the pump and shorten the lifespan of the device. Therefore, this paper proposes a cryogenic gas recovery device. Utility Model Content

[0004] The purpose of this invention is to provide a cryogenic gas recovery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cryogenic gas recovery device, including a base plate;

[0006] And four support legs fixedly connected to the bottom surface of the base plate, wherein a filter assembly and a recycling assembly are fixedly connected to the top surface of the base plate;

[0007] The recycling component is located to the right of the filtering component.

[0008] Preferably, the filter assembly includes a filter box fixedly connected to the top surface of the bottom plate, an air inlet pipe is arranged above the left side of the filter box, the bottom end surface of the air inlet pipe is fixedly connected to the top surface of the filter box and extends to the inside of the filter box, a partition plate is fixedly connected to the inner side of the filter box, a through slot is arranged in the left side surface of the partition plate, a filter screen is fixedly connected to the inside of the through slot, the air inlet pipe is located to the left of the filter screen, an air outlet pipe is arranged to the right of the filter screen, the right end surface of the air outlet pipe is fixedly connected to the right side surface of the inside of the filter box and extends to the right side of the filter box, an L-shaped plate is fixedly connected to the bottom surface of the inside of the filter box, a first rotating rod and a second rotating rod are arranged in the inside of the L-shaped plate, the first rotating rod and the second rotating rod are arranged vertically, a bevel gear is fixedly sleeved on the surface of the first rotating rod and the surface of the second rotating rod, the two bevel gears are in oblique surface engagement transmission, the left end surface of the first rotating rod extends to the left side of the filter screen by penetrating through the inside surface of the L-shaped plate and the right side surface of the filter screen, the rear end surface of the second rotating rod extends to the rear side of the L-shaped plate by penetrating through the rear surface of the inside of the L-shaped plate, the surface of the first rotating rod is rotationally connected to the inner wall of the L-shaped plate and the inner wall of the filter screen through the bearing seat, the surface of the second rotating rod is rotationally connected to the inner wall of the L-shaped plate through the bearing seat, a cleaning brush is fixedly connected to the left end surface of the first rotating rod, the right end surface of the cleaning brush is slidably connected to the left side surface of the filter screen, and a blade is fixedly connected to the rear end surface of the second rotating rod.

[0009] Preferably, the recovery assembly includes a condenser fixedly connected to the top surface of the bottom plate, an air suction pump is arranged on the left side of the condenser, the left end surface of the air suction pump is fixedly connected to the right end surface of the air outlet pipe, the top end surface of the air exhaust pipe of the air suction pump is fixedly connected to the air pipe of the condenser, the filtered low-temperature gas is transmitted into the condenser through the air pipe, and the model of the condenser is XNX-300.

[0010] Preferably, a blowdown pipe is arranged on the left side of the partition plate, the bottom end surface of the blowdown pipe extends to the lower side of the bottom plate by penetrating through the bottom surface of the inside of the filter box and the top surface of the bottom plate.

[0011] Preferably, a valve is arranged in the blowdown pipe, and the valve facilitates the discharge of impurities in the blowdown pipe.

[0012] Preferably, inclined plates are arranged on the front side and the rear side of the blowdown pipe, the right side surfaces of the inclined plates are fixedly connected to the left side surface of the partition plate, the two inclined plates are symmetrically arranged, and the bottom surfaces of the inclined plates are fixedly connected to the bottom surface of the inside of the filter box, so that the impurities cleaned on the filter screen fall into the blowdown pipe.

[0013] Preferably, a support plate is fixedly connected to the bottom surface of the air suction pump, a support rod is fixedly connected to the bottom surface of the support plate, the bottom surface of the support rod is fixedly connected to the top surface of the bottom plate, and the support rod and the support plate support the air suction pump.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The cryogenic gas recovery device uses a filter assembly and a filter screen to filter the cryogenic gas entering the filter box, preventing impurities in the cryogenic gas from entering the pump. At the same time, the first rotating rod drives the cleaning brush to rotate, so that the cleaning brush cleans the filter screen, preventing impurities from clogging the filter screen and affecting filtration, thus improving the service life of the cryogenic gas recovery device.

[0016] 2. This cryogenic gas recovery device, through a recovery component, uses a vacuum pump and a vent pipe to introduce filtered cryogenic gas into a condenser. The cryogenic gas is liquefied in the condenser, achieving the purpose of filling and liquefying and recovering cryogenic gas, thus reducing the waste of cryogenic gas. Attached Figure Description

[0017] Figure 1 This is a front sectional perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the overall main view of this utility model;

[0019] Figure 3 This is a rear-view perspective view of the entire utility model;

[0020] Figure 4 This is a rear perspective view of the first rotating rod of this utility model;

[0021] Figure 5 This is a top-side sectional perspective view of the cleaning brush of this utility model.

[0022] In the diagram: base plate 1, support leg 2, filter assembly 30, filter box 301, air inlet pipe 302, partition plate 303, filter screen plate 304, air outlet pipe 305, L-shaped plate 306, first rotating rod 307, second rotating rod 308, blade 309, cleaning brush 3010, inclined plate 3011, sewage pipe 3012, recovery assembly 31, air pump 311, ventilation pipe 312, condenser 313, support plate 314, support rod 315. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1 - Figure 5The utility model provides a technical scheme: a low temperature gas recovery device, including bottom plate 1,

[0025] And four support legs 2 are fixedly connected in the bottom surface of bottom plate 1, and the top surface of bottom plate 1 is fixedly connected with filter assembly 30 and recovery assembly 31,

[0026] Recovery assembly 31 is located at the right side of filter assembly 30.

[0027] Filter assembly 30 includes filter box 301 fixedly connected in the top surface of bottom plate 1, and air inlet pipe 302 is arranged on the left side upper portion of filter box 301, the bottom end surface of air inlet pipe 302 is fixedly penetrated through the top surface of filter box 301 and extends to the inside of filter box 301, the inner side of filter box 301 is fixedly connected with baffle 303, and the left side surface of baffle 303 is provided with through slot, and filter screen plate 304 is fixedly connected in the inside of through slot, air inlet pipe 302 is located at the left side of filter screen plate 304, and air outlet pipe 305 is arranged on the right side of filter screen plate 304, the right end surface of air outlet pipe 305 is fixedly penetrated through the right side surface of the inside of filter box 301 and extends to the right side of filter box 301, the bottom surface of the inside of filter box 301 is fixedly connected with L-shaped plate 306, the inner side of L-shaped plate 306 is provided with first rotating rod 307 and second rotating rod 308, first rotating rod 307 and second rotating rod 308 are vertically arranged, the surfaces of first rotating rod 307 and second rotating rod 308 are fixedly provided with bevel gears, the two bevel gears are obliquely engaged and are driven, the left end surface of first rotating rod 307 extends to the left side of filter screen plate 304 by penetrating through the inner side surface of L-shaped plate 306 and the right side surface of filter screen plate 304, the rear end surface of second rotating rod 308 extends to the rear side of L-shaped plate 306 by penetrating through the rear inner side of L-shaped plate 306, the surface of first rotating rod 307 is rotatably connected with the inner wall of L-shaped plate 306 and the inner wall of filter screen plate 304 through bearing seat respectively, the surface of second rotating rod 308 is rotatably connected with the inner wall of L-shaped plate 306 through bearing seat, the left end surface of first rotating rod 307 is fixedly connected with cleaning brush 3010, the right end surface of cleaning brush 3010 is slidably connected with the left side surface of filter screen plate 304, the rear end surface of second rotating rod 308 is fixedly connected with blade 309, by filter assembly 30, the low temperature gas in filter box 301 is filtered by filter screen plate 304, avoids the impurities mixed in the low temperature gas from entering into air pump 311, simultaneously, first rotating rod 307 drives cleaning brush 3010 to rotate, so that cleaning brush 3010 cleans filter screen plate 304, avoids the impurities from blocking filter screen plate 304 and affecting filtration, improves the service life of the low temperature gas recovery device.

[0028] The left side of baffle 303 is provided with blowdown pipe 3012, and the bottom end surface of blowdown pipe 3012 is fixedly penetrated through the bottom surface of the inside of filter box 301 and the top surface of bottom plate 1 and extends to below bottom plate 1.

[0029] Valve is arranged in the inside of blowdown pipe 3012.

[0030] The inclined plates 3011 are arranged on the front and back sides of the drain pipe 3012, the right side surface of the inclined plate 3011 is fixedly connected with the left side surface of the partition plate 303, the two inclined plates 3011 are symmetrically arranged, and the bottom surface of the inclined plate 3011 is fixedly connected with the inner bottom surface of the filter box 301.

[0031] Embodiment two: on the basis of embodiment one, the preferable embodiment of the low-temperature gas recovery device provided by the utility model is as follows Figure 1 Figure 3 As shown in the figure: the recovery assembly 31 comprises a condenser 313 fixedly connected with the top surface of the bottom plate 1, the left side of the condenser 313 is provided with an air extraction pump 311, the left end surface of the air extraction pipe of the air extraction pump 311 is fixedly connected with the right end surface of the air outlet pipe 305, the top end surface of the exhaust pipe of the air extraction pump 311 is fixedly connected with an air pipe 312, the right end surface of the air pipe 312 is bolted with the air pipe of the condenser 313, through the recovery assembly 30, the filtered low-temperature gas is introduced into the condenser 313 by using the air extraction pump 311 and the air pipe 312, the low-temperature gas is liquefied in the condenser 313, the purpose of filling and liquefying recovery of the low-temperature gas is achieved, and the waste of the low-temperature gas is reduced.

[0032] The bottom surface of the air extraction pump 311 is fixedly connected with a support plate 314, the bottom surface of the support plate 314 is fixedly connected with a support rod 315, and the bottom surface of the support rod 315 is fixedly connected with the top surface of the bottom plate 1.

[0033] In use, the air inlet pipe 302 is connected with the exhaust pipe of a low-temperature tank (not shown in the figure) by using bolts, the air extraction pump 311 is turned on, the air extraction pump 311 extracts the gas in the filter box 301, so that the pressure in the filter box 301 is reduced, thereby driving the air inlet pipe 302 to extract the low-temperature gas in the low-temperature tank, after the low-temperature gas enters the filter box 301, the filter screen plate 304 filters the low-temperature gas, the impurities mixed in the low-temperature gas are filtered by the filter screen plate 304, the low-temperature gas and the gas flow driven by the air extraction pump 311, so that the blade 309 rotates and drives the second rotating rod 308, the second rotating rod 308 drives the connected bevel gears to rotate, the first rotating rod 307 is driven to rotate through the meshing transmission of the two bevel gears, the cleaning brush 3010 is driven to rotate by the first rotating rod 307, the cleaning brush 3010 cleans the impurities attached to the filter screen plate 304, the valve is opened, and the cleaned impurities can be discharged from the drain pipe 3012; the air extraction pump 311 drives the air outlet pipe 305 to extract the filtered low-temperature gas, and the low-temperature gas is input into the condenser 313 through the air pipe 312, and the condenser 313 liquefies and recovers the low-temperature gas.

[0034] ​Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cryogenic gas recovery device, comprising a base plate (1); and four support legs (2) fixedly connected to the bottom surface of the base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top surface of the filter assembly (30) and the recycling assembly (31). The recycling component (31) is located to the right of the filter component (30); The filter assembly (30) includes a filter box (301) fixedly connected to the top surface of the base plate (1). An air inlet pipe (302) is provided on the upper left side of the filter box (301). The bottom end of the air inlet pipe (302) is fixedly connected through the top surface of the filter box (301) and extends into the interior of the filter box (301). A partition plate (303) is fixedly connected to the inner side of the filter box (301). A through groove is provided on the left side of the partition plate (303). A filter screen plate (304) is fixedly connected inside the through groove. An air inlet pipe (302) is located on the left side of the filter screen plate (304). An air outlet pipe (305) is provided on the right side of the filter screen plate (304). The right end face of the air outlet pipe (305) is fixedly inserted through the right side of the filter box (301) and extends to the right side of the filter box (301). An L-shaped plate (306) is fixedly connected to the bottom surface of the filter box (301). A first rotating rod (307) and a second rotating rod (308) are provided on the inner side of the L-shaped plate (306). The first rotating rod (307) and The second rotating rod (308) is vertically arranged. Both the surface of the first rotating rod (307) and the surface of the second rotating rod (308) are fixedly fitted with bevel gears. The two bevel gears mesh on their inclined surfaces for transmission. The left end face of the first rotating rod (307) extends through the inner side of the L-shaped plate (306) and the right side of the filter screen plate (304) to the left side of the filter screen plate (304). The rear end face of the second rotating rod (308) extends through the inner rear side of the L-shaped plate (306) to the rear side of the L-shaped plate (306). The surface of the moving rod (307) is rotatably connected to the inner wall of the L-shaped plate (306) and the inner wall of the filter screen plate (304) through bearing seats respectively. The surface of the second rotating rod (308) is rotatably connected to the inner wall of the L-shaped plate (306) through bearing seats. A cleaning brush (3010) is fixedly connected to the left end face of the first rotating rod (307). The right end face of the cleaning brush (3010) is slidably connected to the left side face of the filter screen plate (304). A blade (309) is fixedly connected to the rear end face of the second rotating rod (308).

2. The cryogenic gas recovery device according to claim 1, characterized in that: The recycling component (31) includes a condenser (313) fixedly connected to the top surface of the base plate (1). A vacuum pump (311) is provided on the left side of the condenser (313). The left end face of the vacuum pump (311) is fixedly connected to the right end face of the exhaust pipe (305). A vent pipe (312) is fixedly connected to the top end face of the exhaust pipe of the vacuum pump (311). The right end face of the vent pipe (312) is bolted to the gas pipe of the condenser (313).

3. The cryogenic gas recovery device according to claim 1, characterized in that: A drain pipe (3012) is provided on the left side of the partition (303). The bottom end of the drain pipe (3012) is fixedly inserted through the bottom surface of the filter box (301) and the top surface of the bottom plate (1) and extends to the bottom of the bottom plate (1).

4. The cryogenic gas recovery device according to claim 3, characterized in that: The sewage pipe (3012) is equipped with a valve inside.

5. A cryogenic gas recovery device according to claim 4, characterized in that: Inclined plates (3011) are provided on both the front and rear sides of the sewage pipe (3012). The right side of the inclined plate (3011) is fixedly connected to the left side of the partition (303). The two inclined plates (3011) are arranged symmetrically. The bottom surface of the inclined plate (3011) is fixedly connected to the bottom surface inside the filter box (301).

6. The cryogenic gas recovery device according to claim 2, characterized in that: The bottom surface of the air pump (311) is fixedly connected to a support plate (314), and the bottom surface of the support plate (314) is fixedly connected to a support rod (315). The bottom surface of the support rod (315) is fixedly connected to the top surface of the base plate (1).

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