Low-temperature storage tank body pressure recovery gas supply device

Abstract

The utility model relates to the technical field of low-temperature storage tanks, in particular to a low-temperature storage tank body pressure recovery air supply device which comprises a low-temperature storage tank body and bent plates, the surface of the low-temperature storage tank body is fixedly connected with the two bent plates, one ends of the bent plates on the two sides are fixedly connected with the surface of a cylinder, and a pressure recovery device is arranged in the cylinder. According to the pressure recovery air supply device of the low-temperature storage tank body, through cooperation of the pressure recovery device and the cylinder, when continuous pressure relief needs to be conducted on the interior of equipment, an operator wrenches a top plate, one end of the top plate abuts against the surface of the cylinder, the position of a straight plate is fixed, and the pressure recovery device is arranged in the cylinder; and meanwhile, the cover plate can be kept in a separated state from the connecting pipe, so that pressure can be continuously released from the interior, the device can be adjusted in a diversified mode, high-pressure gas can be recycled at the same time, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature storage tank bodies, in particular to a low-temperature storage tank body pressure recovery and air supply device. Background Art

[0002] The liquid discharge from the cryogenic storage tank is driven by the self-pressure of the storage tank. After the liquid is delivered, the liquid level drops and the gas phase space in the storage tank becomes larger, causing the pressure inside the tank to drop. Therefore, gas must be continuously added to the tank to maintain the pressure inside the tank unchanged in order to meet the process requirements.

[0003] For example, the application publication number "CN117722336A" is a gas supply device for recovering the pressure of a storage tank. By setting a transmission gear at the bottom of the bolt and using it in conjunction with a gear ring, the gear ring can drive multiple bolts to rotate synchronously to achieve synchronous unlocking of multiple bolts, changing the existing one-by-one bolt unlocking method, simplifying the bolt unlocking operation steps, not only speeding up the bolt unlocking speed, but also reducing the workload of the staff. However, the device is not convenient for various adjustments to the pressure inside the cryogenic storage tank, which makes it inconvenient for the device to recycle the released pressure, resulting in the device being less practical. At the same time, the device is not convenient for controlling the gas supply inside the cryogenic storage tank, making the device less convenient to use. Utility Model Content

[0004] The utility model aims to solve the problems of low practicability and inconvenience in use of the device, and proposes a low-temperature storage tank body pressure recovery gas supply device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-temperature storage tank body pressure recovery and air supply device is designed, comprising a low-temperature storage tank body and a bent plate, wherein two bent plates are fixedly connected to the surface of the low-temperature storage tank body, one end of the bent plates on both sides are fixedly connected to the surface of a cylinder, a pressure recovery device is arranged inside the cylinder, an air supply device is arranged inside the cylinder, the surface of the low-temperature storage tank body is fixedly connected to one end of a first straight pipe and a second straight pipe respectively, the first straight pipe and the second straight pipe are respectively connected to two cavities opened on the inner surface of the cylinder, the cavity on one side of the cylinder is fixedly connected to one end of a pressure relief pipe, and the pressure relief pipe is fixedly connected to the surface of the cylinder.

[0007] Preferably, the pressure recovery device includes a top plate and a straight plate, the straight plate is pressed against the surface of the cylinder, the surface of the straight plate is movably connected to one end of the top plate through a pin shaft, the surface of the top plate is snap-fitted with a groove provided on the surface of the straight plate, a straight rod is fixedly connected to the surface of the straight plate, the surface of the straight rod is slidingly connected to the surface of a rubber ring, the rubber ring is fixedly connected to the inner surface of the cylinder, one end of the straight rod is fixedly connected to the surface of a cover plate, and the surface of the cover plate and the inner surface of the cylinder are respectively fixedly connected to the two ends of a first spring.

[0008] Preferably, the surface of the cryogenic storage tank body is fixedly connected to one end of the two pipes, and a plurality of groups of supporting legs are fixedly connected to the surface of the cryogenic storage tank body.

[0009] Preferably, a second one-way valve is provided on the surface of the second straight pipe, and a first one-way valve is provided on the surface of the pressure relief pipe.

[0010] Preferably, a connecting pipe is fixedly connected to the inner surface of the cylinder, one end of the connecting pipe is tightly pressed against the surface of the cover plate, and one end of the connecting pipe is connected to the first straight pipe through a through hole opened on the surface of the cylinder.

[0011] Preferably, the air supply device includes a pull rod and a through hole block, the surface of the through hole block is slidably connected to a slideway opened on the inner surface of the cylinder, the surface of the through hole block is fixedly connected to the pull rod, the surface of the through hole block is provided with a through hole, the surface of the through hole block is fixedly connected to a sliding rod, the surface of the sliding rod is slidably engaged with the slideway opened on the inner surface of the cylinder, and one end of the sliding rod and the inner surface of the cylinder are respectively fixedly connected to the two ends of the second spring.

[0012] The utility model provides a low-temperature storage tank body pressure recovery gas supply device, which has the beneficial effect that: through the cooperation of the pressure recovery device and the cylinder, when the inside of the low-temperature storage tank body is charged through the pipeline, the gas inside the low-temperature storage tank body will be pushed out, so that the internal gas can be discharged through the first straight pipe. When the pressure of the gas increases to a certain level, the cover plate can be pushed upward by the push of the gas pressure, so that the cover plate can drive the straight rod to move synchronously, so that the first spring can be compressed, and at the same time, the surface of the cover plate is separated from one end of the connecting pipe, so that the high-pressure gas inside the first straight pipe can enter the cylinder through the connecting pipe. The cavity of the cylinder can be discharged through the pressure relief pipe, and the high-pressure gas can be transported through the pressure relief pipe, so that the high pressure of the gas can be utilized. The specific utilization method can be reasonably used according to the actual situation. When it is necessary to continuously relieve the pressure inside the equipment, the operator pulls the top plate so that one end of the top plate is pressed against the surface of the cylinder to fix the position of the straight plate. At the same time, the cover plate can be kept separated from the connecting pipe, so that the internal pressure can be continuously relieved. The device can be adjusted in a variety of ways, so that the high-pressure gas can be recycled and utilized at the same time, thereby improving the practicability of the device.

[0013] Through the cooperation of the air supply device and the cylinder, when the raw materials inside the low-temperature storage tank body are discharged, it is necessary to supply air to the inside of the low-temperature storage tank body to keep the raw materials inside flowing out stably. The operator pushes the through-hole block to move through the pull rod, so that the through holes on the surface of the through-hole block can connect the outside with the inside of the low-temperature storage tank body, and complete the air supply to the inside of the low-temperature storage tank body. At the same time, when the raw materials inside the low-temperature storage tank body are discharged, the through-hole block can be moved under the action of air pressure, and air can be supplied without the intervention of the operator. Under the push of the second spring, when the air pressure inside the low-temperature storage tank body is not enough to drive the through-hole block to move, the through-hole block can be returned to its original position. The device can be manually controlled, which makes the device more convenient to adjust and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front cross-sectional view of

[0016] Figure 3 for Figure 1 Side view of

[0017] Figure 4 for Figure 1 A partial front cross-sectional view of

[0018] Figure 5 It is a three-dimensional schematic diagram of the top plate and the straight plate;

[0019] Figure 6 for Figure 2 Schematic diagram of part A.

[0020] In the figure: 1. cryogenic storage tank body, 2. pressure recovery device, 201. top plate, 202. straight plate, 203. straight rod, 204. rubber ring, 205. first spring, 206. cover plate, 3. first one-way valve, 4. pressure relief pipe, 5. bent plate, 6. first straight pipe, 7. second one-way valve, 8. supporting leg, 9. air supply device, 901. pull rod, 902. through-hole block, 903. sliding rod, 904. second spring, 10. cylinder, 11. pipeline, 12. second straight pipe, 13. connecting pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6: In the present embodiment, a low-temperature storage tank body pressure recovery and gas supply device comprises a low-temperature storage tank body 1 and a bent plate 5. Two bent plates 5 are fixedly connected to the surface of the low-temperature storage tank body 1. One end of the bent plates 5 on both sides is fixedly connected to the surface of a cylinder 10. A pressure recovery device 2 is arranged inside the cylinder 10. A gas supply device 9 is arranged inside the cylinder 10. The surface of the low-temperature storage tank body 1 is fixedly connected to one end of a first straight pipe 6 and a second straight pipe 12 respectively. The first straight pipe 6 and the second straight pipe 12 can respectively relieve pressure and supply gas to the inside of the low-temperature storage tank body 1. The first straight pipe 6 and the second straight pipe 12 are respectively connected to two cavities opened on the inner surface of the cylinder 10. The cavity on one side of the cylinder 10 is fixedly connected to one end of a pressure relief pipe 4. The first one-way valve 3 on the surface of the pressure relief pipe 4 can discharge the internal gas. The pressure relief pipe 4 is fixedly connected to the surface of the cylinder 10.

[0023] The surface of the cryogenic storage tank body 1 is fixedly connected to one end of two pipes 11, and the two pipes 11 can feed and discharge materials into the cryogenic storage tank body 1. A plurality of groups of supporting legs 8 are fixedly connected to the surface of the cryogenic storage tank body 1. A second one-way valve 7 is provided on the surface of the second straight pipe 12. The second one-way valve 7 allows outside air to enter the interior of the cryogenic storage tank body 1. A first one-way valve 3 is provided on the surface of the pressure relief pipe 4. A connecting pipe 13 is fixedly connected to the inner surface of the cylinder 10. One end of the connecting pipe 13 is tightly pressed against the surface of the cover plate 206, and one end of the connecting pipe 13 is connected to the first straight pipe 6 through a through hole opened on the surface of the cylinder 10.

[0024] The pressure recovery device 2 includes a top plate 201 and a straight plate 202. The straight plate 202 is pressed against the surface of the cylinder 10. The surface of the straight plate 202 is movably connected to one end of the top plate 201 through a pin. The top plate 201 can be unfolded so that one end of the top plate 201 can be pressed against the surface of the cylinder 10 to fix the height of the straight plate 202. The surface of the top plate 201 is engaged with the grooves provided on the surface of the straight plate 202. The surface of the straight plate 202 is fixedly connected with a straight rod 203. The surface of the straight rod 203 is slidably connected to the surface of the rubber ring 204. The rubber ring 204 can be used to At the connection between the sealing straight rod 203 and the cylinder 10, the rubber ring 204 is fixedly connected to the inner surface of the cylinder 10, and one end of the straight rod 203 is fixedly connected to the surface of the cover plate 206. The cover plate 206 can press the surface of the connecting pipe 13 tightly so that the connecting pipe 13 can be blocked. The surface of the cover plate 206 and the inner surface of the cylinder 10 are respectively fixedly connected to the two ends of the first spring 205. The elastic coefficient of the first spring 205 can meet the working needs according to actual needs. The first spring 205 can push the cover plate 206 to press against one end of the connecting pipe 13.

[0025] The air supply device 9 includes a pull rod 901 and a through hole block 902. The surface of the through hole block 902 is slidably connected to a slideway opened on the inner surface of the cylinder 10. The surface of the through hole block 902 is fixedly connected to the pull rod 901, and the through hole block 902 can be controlled to move by the pull rod 901. A through hole is opened on the surface of the through hole block 902. A slide rod 903 is fixedly connected to the surface of the through hole block 902. The through hole block 902 can drive the slide rod 903 to move synchronously. The surface of the slide rod 903 is slidably engaged with the slideway opened on the inner surface of the cylinder 10. One end of the slide rod 903 and the inner surface of the cylinder 10 are respectively fixedly connected to the two ends of the second spring 904. The second spring 904 can meet the working needs according to actual needs, and the second spring 904 can push the through hole block 902 to reset.

[0026] Working principle:

[0027] When using cryogenic tanks:

[0028] When adding material to the cryogenic storage tank body 1 through the pipeline 11, the gas inside the cryogenic storage tank body 1 will be pushed out, so that the gas inside can be discharged through the first straight pipe 6. When the gas pressure increases to a certain level, the cover plate 206 can be pushed upward by the gas pressure, so that the cover plate 206 can drive the straight rod 203 to move synchronously, so that the first spring 205 can be compressed, and at the same time, the surface of the cover plate 206 is separated from one end of the connecting pipe 13, so that the high-pressure gas inside the first straight pipe 6 can enter the cylinder 10 through the connecting pipe 13. In the internal cavity, the gas inside the cylinder 10 can be discharged through the pressure relief pipe 4, and the high-pressure gas can be transported. The high-pressure gas can be transported through the pressure relief pipe 4, so that the high pressure of the gas can be utilized. The specific utilization method can be reasonably used according to the actual situation. When it is necessary to continuously relieve the pressure inside the equipment, the operator pulls the top plate 201 so that one end of the top plate 201 is pressed against the surface of the cylinder 10 to fix the position of the straight plate 202. At the same time, the cover plate 206 can be kept separated from the connecting pipe 13, so that the internal pressure can be continuously relieved.

[0029] Gas supply process:

[0030] When the raw materials inside the cryogenic storage tank body 1 are discharged, it is necessary to supply air to the inside of the cryogenic storage tank body 1 to keep the raw materials inside flowing out stably. The operator pushes the through-hole block 902 to move through the pull rod 901, so that the through holes on the surface of the through-hole block 902 can connect the outside with the inside of the cryogenic storage tank body 1, and complete the air supply to the inside of the cryogenic storage tank body 1. At the same time, when the raw materials inside the cryogenic storage tank body 1 are discharged, the through-hole block 902 can be moved under the action of air pressure, and air can be supplied without the intervention of the operator. Under the push of the second spring 904, when the air pressure inside the cryogenic storage tank body 1 is not enough to drive the through-hole block 902 to move, the through-hole block 902 can be returned to its original position.

[0031] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A low-temperature storage tank body pressure recovery and gas supply device, comprising a low-temperature storage tank body (1) and a bent plate (5), wherein two bent plates (5) are fixedly connected to the surface of the low-temperature storage tank body (1), characterized in that: One end of the bent plates (5) on both sides is fixedly connected to the surface of the cylinder (10), a pressure recovery device (2) is provided inside the cylinder (10), and an air supply device (9) is provided inside the cylinder (10). The surface of the low-temperature storage tank body (1) is fixedly connected to one end of the first straight pipe (6) and the second straight pipe (12), respectively. The first straight pipe (6) and the second straight pipe (12) are respectively connected to two cavities opened on the inner surface of the cylinder (10). The cavity on one side of the cylinder (10) is fixedly connected to one end of the pressure relief pipe (4), and the pressure relief pipe (4) is fixedly connected to the surface of the cylinder (10).

2. The low-temperature storage tank body pressure recovery and gas supply device according to claim 1, characterized in that: The pressure recovery device (2) comprises a top plate (201) and a straight plate (202), wherein the straight plate (202) is pressed against the surface of the cylinder (10), the surface of the straight plate (202) is movably connected to one end of the top plate (201) via a pin, the surface of the top plate (201) is engaged with a groove provided on the surface of the straight plate (202), a straight rod (203) is fixedly connected to the surface of the straight plate (202), the surface of the straight rod (203) is slidably connected to the surface of a rubber ring (204), the rubber ring (204) is fixedly connected to the inner surface of the cylinder (10), one end of the straight rod (203) is fixedly connected to the surface of a cover plate (206), the surface of the cover plate (206) and the inner surface of the cylinder (10) are respectively fixedly connected to the two ends of a first spring (205).

3. The low-temperature storage tank body pressure recovery and gas supply device according to claim 1, characterized in that: The surface of the low-temperature storage tank body (1) is fixedly connected to one end of two pipes (11), and the surface of the low-temperature storage tank body (1) is fixedly connected to multiple groups of support legs (8).

4. The low-temperature storage tank body pressure recovery and gas supply device according to claim 1, characterized in that: A second one-way valve (7) is provided on the surface of the second straight pipe (12), and a first one-way valve (3) is provided on the surface of the pressure relief pipe (4).

5. The low-temperature storage tank body pressure recovery and gas supply device according to claim 1, characterized in that: A connecting pipe (13) is fixedly connected to the inner surface of the cylinder (10), one end of the connecting pipe (13) is tightly abutted against the surface of the cover plate (206), and one end of the connecting pipe (13) is connected to the first straight pipe (6) through a through hole opened on the surface of the cylinder (10).

6. The low-temperature storage tank body pressure recovery and gas supply device according to claim 1, characterized in that: The air supply device (9) includes a pull rod (901) and a through hole block (902), the surface of the through hole block (902) is slidably connected to a slideway provided on the inner surface of the cylinder (10), the surface of the through hole block (902) is fixedly connected to the pull rod (901), the surface of the through hole block (902) is provided with a through hole, the surface of the through hole block (902) is fixedly connected to a slide rod (903), the surface of the slide rod (903) is slidably engaged with the slideway provided on the inner surface of the cylinder (10), and one end of the slide rod (903) and the inner surface of the cylinder (10) are fixedly connected to the two ends of the second spring (904) respectively.

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