Low-temperature liquid tank car pressure relief air cooling capacity recovery device

Abstract

The utility model discloses a low-temperature liquid tank car pressure relief air cooling capacity recovery device which comprises a shell and a detachable sealing plate arranged at the top of the shell, a heat exchange pipe is arranged in the shell, a heat conduction piece is installed on the surface of the heat exchange pipe, and the low-temperature liquid tank car pressure relief air cooling capacity recovery device further comprises an installation block. The two mounting blocks are mounted at the tops of the surfaces of the heat exchange pipes correspondingly, the tops of the mounting blocks are fixedly connected with the bottom of the sealing plate, an air inlet pipe communicating with the heat exchange pipes is mounted on the left side of the top of the sealing plate, and an air outlet pipe communicating with the heat exchange pipes is mounted on the right side of the top of the sealing plate. Through mutual cooperation of the shell, the sealing plate, the heat exchange pipe, the heat conduction piece, the installation block, the air inlet pipe, the air outlet pipe, the water temperature sensor and the alarm, the low-temperature liquid tank car pressure relief air cooling capacity recovery device is achieved, therefore, the cooling capacity in air can be conveniently recycled through water, and meanwhile the temperature of cooled water can be clearly known.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature liquid tanker pressure relief gas cold energy recovery, and specifically relates to a low-temperature liquid tanker pressure relief gas cold energy recovery device. Background Technique

[0002] An air separation unit is a series of industrial equipment used to separate the component gases in air, including refrigeration equipment and low-temperature liquid transportation equipment, etc. The liquid products produced by the air separation unit, liquid oxygen, liquid nitrogen, and liquid argon, are transported through pipelines into the corresponding liquid storage tanks for storage, and are sold and transported by liquid tankers. After the liquid tanker unloads the goods, there is often a small amount of liquid remaining. These residual liquids will gradually vaporize into low-temperature gases due to the increase in temperature and the change in pressure inside the tanker, forming a relatively high pressure inside the tanker. If the tanker is not depressurized and discharged before filling, then when the tanker is preparing to be filled later, impure gas and liquid inside the tanker will enter the liquid storage tank during the pre-cooling of the filling pump, causing pollution of the liquid product. Therefore, a pressure relief gas cold energy recovery device is required.

[0003] According to the application number: CN202322554308.8, a low-temperature liquid tanker pressure relief gas cold energy recovery device includes a liquid tanker, a corrugated hose, an inlet pipe, a pressure relief mechanism, and a cold energy recovery mechanism. The pressure relief mechanism includes a pressure relief barrel and an annular pipe. The annular pipe is arranged at the inner bottom of the pressure relief barrel, and a number of air outlet holes are evenly distributed on the annular pipe. One end of the inlet pipe is connected to the corrugated hose, and the other end of the inlet pipe is connected to the annular pipe. The corrugated hose is connected to the liquid tanker. The cold energy recovery mechanism includes a recovery pipe, a water cooling tower, and a heat exchange pipe. The recovery pipe is communicated with the top of the pressure relief barrel. The heat exchange pipe is arranged inside the water cooling tower. The heat exchange pipe is a serpentine elbow pipe. One end of the heat exchange pipe is connected to the recovery pipe, and the other end of the heat exchange pipe penetrates through the water cooling tower. A circulating water outlet is arranged at the side bottom of the water cooling tower, and a circulating water inlet is arranged at the side top of the water cooling tower.

[0004] The pressure relief gas cold energy recovery device in the above case has a poor recovery effect, so it is impossible to clearly understand the temperature of the water after cold energy recovery, and it is inconvenient to disassemble the heat exchange pipe inside the recovery device for maintenance, which affects the service life of the heat exchange pipe and reduces the practicality. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-temperature liquid tanker pressure relief gas cold energy recovery device to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A low-temperature liquid tanker pressure relief gas cold energy recovery device includes a housing and a detachable and installable sealing plate arranged on the top of the housing. A heat exchange pipe is arranged inside the housing, and heat conducting fins are installed on the surface of the heat exchange pipe.

[0007] Preferably, it further includes mounting blocks. The number of the mounting blocks is two and they are respectively mounted on the top of the surface of the heat exchange tube. The top of the mounting block is fixedly connected to the bottom of the sealing plate. An air inlet pipe communicating with the heat exchange tube is mounted on the left side of the top of the sealing plate, and an air outlet pipe communicating with the heat exchange tube is mounted on the right side of the top of the sealing plate.

[0008] Preferably, a water temperature sensor is mounted on the bottom of the inner wall of the housing, and an alarm is mounted on the left side of the housing.

[0009] Preferably, clamping blocks are mounted on both the left and right sides of the bottom of the sealing plate. Card slots are provided at the positions corresponding to the clamping blocks on the top of the housing. The bottom of the clamping block penetrates through the card slot and extends into it to contact the inner wall of the card slot.

[0010] Preferably, fixing grooves are provided on both the left and right sides of the housing. A threaded rod is rotatably connected to the groove of the inner wall of the fixing groove through a bearing. One end of the threaded rod away from the bearing penetrates through the fixing groove and extends to the outside to be mounted with a rotating block.

[0011] Preferably, a threaded block is threadedly connected to the surface of the threaded rod. A moving block is mounted on the top of the threaded block. The top of the moving block sequentially penetrates through the fixing groove and the card slot from bottom to top and extends into the inside of the card slot.

[0012] Preferably, a movable block is mounted on the side of the moving block away from the threaded block. A limiting block is mounted on the movable block. A limiting groove is provided at the position corresponding to the limiting block on the side of the clamping block close to the limiting block. One side of the limiting block close to the limiting groove penetrates through the limiting groove and extends into it to contact the inner wall of the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the mutual cooperation of the housing, the sealing plate, the heat exchange tube, the heat conducting sheet, the mounting block, the air inlet pipe, the air outlet pipe, the water temperature sensor and the alarm, the present utility model realizes a low-temperature liquid tanker pressure relief air-cooling heat recovery device, thus facilitating the recovery and utilization of the cold in the gas by water, and at the same time, the temperature of the water after being cooled can be clearly understood, which is convenient for replacing the water resource.

[0015] 2. Through the mutual cooperation of the clamping block, the card slot, the fixing groove, the threaded rod, the rotating block, the threaded block, the moving block, the movable block, the limiting block and the limiting groove, the present utility model facilitates the disassembly and extraction of the heat exchange tube and the heat conducting sheet from the housing for maintenance and repair, improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 It is a structural sectional view of the front view of the present utility model;

[0018] Figure 3 It is a structural sectional view of the front view of the card slot, fixed slot, rotating block and limit slot of the present utility model.

[0019] In the figure: 1 housing, 2 sealing plate, 3 heat exchange tube, 4 heat conducting sheet, 5 mounting block, 6 intake pipe, 7 exhaust pipe, 8 water temperature sensor, 9 alarm, 10 clamping block, 11 card slot, 12 fixed slot, 13 threaded rod, 14 rotating block, 15 threaded block, 16 moving block, 17 movable block, 18 limiting block, 19 limiting slot. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-3 , a low-temperature liquid tank truck pressure relief air-cooling energy recovery device, including a housing 1 and a detachable sealing plate 2 provided on the top of the housing 1. A heat exchange tube 3 is provided inside the housing 1, and a heat conducting sheet 4 is fixedly connected to the surface of the heat exchange tube 3.

[0022] Furthermore, the bottom of the sealing plate 2 is in contact with the top of the housing 1. A water inlet pipe communicating with the housing 1 is fixedly connected to the top of the sealing plate 2. Two pull rings are fixedly connected to the top of the sealing plate 2, which facilitates the operation of the sealing plate 2. A controller is fixedly connected to the left side of the housing 1. A drain pipe communicating with the housing 1 is fixedly connected to the bottom of the right side of the housing 1, and a valve is provided on the drain pipe.

[0023] It also includes mounting blocks 5. The number of mounting blocks 5 is two and they are respectively installed at the top of the surface of the heat exchange tube 3. The top of the mounting block 5 is fixedly connected to the bottom of the sealing plate 2. An intake pipe 6 communicating with the heat exchange tube 3 is fixedly connected to the left side of the top of the sealing plate 2. An exhaust pipe 7 communicating with the heat exchange tube 3 is fixedly connected to the right side of the top of the sealing plate 2.

[0024] Furthermore, the intake pipe 6 is connected to the pressure relief pipe on the external low-temperature liquid tank truck, and the exhaust pipe 7 is connected to an external air extraction pump, which improves the speed of external gas entering the heat exchange tube 3.

[0025] A water temperature sensor 8 is fixedly connected to the bottom of the inner wall of the housing 1, and an alarm 9 is fixedly connected to the left side of the housing 1.

[0026] Further, the water temperature sensor 8 and the alarm 9 are electrically connected to the controller respectively.

[0027] Through the mutual cooperation of the housing 1, the sealing plate 2, the heat exchange tube 3, the heat conducting sheet 4, the mounting block 5, the air inlet pipe 6, the air outlet pipe 7, the water temperature sensor 8 and the alarm 9, a low-temperature liquid tanker pressure relief air-cooling heat recovery device is realized, so that it is convenient to recover and utilize the cold energy in the gas through water, and at the same time, the temperature of the water after cooling can be clearly understood, which is convenient for replacing the water resource.

[0028] Both the left and right sides of the bottom of the sealing plate 2 are fixedly connected with clamping blocks 10. The top of the housing 1 is provided with clamping grooves 11 corresponding to the positions of the clamping blocks 10. The bottom of the clamping block 10 penetrates through the clamping groove 11 and extends into it to be in contact with the inner wall of the clamping groove 11. Fixed grooves 12 are opened on both the left and right sides of the housing 1. A threaded rod 13 is rotatably connected to the groove of the inner wall of the fixed groove 12 through a bearing. The end of the threaded rod 13 away from the bearing penetrates through the fixed groove 12 and extends to the outside to be fixedly connected with a rotating block 14. A threaded block 15 is threadedly connected to the surface of the threaded rod 13. The top of the threaded block 15 is fixedly connected with a moving block 16. The top of the moving block 16 penetrates through the fixed groove 12 and the clamping groove 11 from bottom to top and extends into the inside of the clamping groove 11. The side of the moving block 16 away from the threaded block 15 is fixedly connected with a movable block 17. A limiting block 18 is fixedly connected to the movable block 17. A limiting groove 19 is opened on the side of the clamping block 10 close to the limiting block 18 corresponding to the position of the limiting block 18. The side of the limiting block 18 close to the limiting groove 19 penetrates through the limiting groove 19 and extends into it to be in contact with the inner wall of the limiting groove 19.

[0029] Specifically, rotate the rotating block 14. The rotating block 14 drives the threaded rod 13 to rotate. The threaded rod 13 drives the threaded block 15 to move away from the rotating block 14. The threaded block 15 drives the movable block 17 to move away from the rotating block 14 through the moving block 16. The movable block 17 drives the limiting block 18 to move away from the limiting groove 19, so that the limiting block 18 and the limiting groove 19 are separated. Then, pull the sealing plate 2 upward. The sealing plate 2 drives the clamping block 10 to move upward, so that the clamping block 10 and the clamping groove 11 are separated. The sealing plate 2 drives the heat exchange tube 3 to move upward, so that the heat exchange tube 3 can be pulled out of the housing 1 to complete the disassembly.

[0030] Through the mutual cooperation of the clamping block 10, the clamping groove 11, the fixed groove 12, the threaded rod 13, the rotating block 14, the threaded block 15, the moving block 16, the movable block 17, the limiting block 18 and the limiting groove 19, it is convenient to disassemble and pull out the heat exchange tube 3 and the heat conducting sheet 4 from the housing 1 for maintenance and repair, improving the practicability.

[0031] During use, the pressure relief pipe on the external cryogenic liquid tank truck transfers cryogenic gas to the heat exchange pipe 3 through the air inlet pipe 6. The heat exchange pipe 3 transfers the cold in the gas to water through the heat conducting fins 4, thereby reducing the temperature of the water. The water temperature is sensed by the water temperature sensor 8. When the temperature is lower than the set value, a signal is transmitted to the controller, and the controller activates the alarm 9 to remind the staff that the water in the housing 1 needs to be replaced. The gas can be discharged through the air outlet pipe 7.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recovering the cooling capacity of the depressurized air of a low-temperature liquid tank truck, characterized in that: It comprises a shell (1) and a detachable sealing plate (2) arranged on the top of the shell (1); a heat exchange tube (3) is arranged inside the shell (1); and a heat conducting sheet (4) is installed on the surface of the heat exchange tube (3).

2. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 1, characterized in that: It also comprises a mounting block (5), the number of which is two and which are respectively mounted on the top of the surface of the heat exchange tube (3), the top of the mounting block (5) being fixedly connected to the bottom of the sealing plate (2), an air inlet pipe (6) which is interconnected with the heat exchange tube (3) being mounted on the left side of the top of the sealing plate (2), and an air outlet pipe (7) which is interconnected with the heat exchange tube (3) being mounted on the right side of the top of the sealing plate (2).

3. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 2, characterized in that: A water temperature sensor (8) is installed at the bottom of the inner wall of the shell (1), and an alarm (9) is installed on the left side of the shell (1).

4. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 3, characterized in that: Blocks (10) are installed on both left and right sides of the bottom of the sealing plate (2); a slot (11) is provided at the top of the shell (1) at a position corresponding to the block (10); the bottom of the block (10) passes through the slot (11) and extends to the inside thereof to contact the inner wall of the slot (11).

5. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 4, characterized in that: The left and right sides of the housing (1) are both provided with fixing grooves (12), a threaded rod (13) is rotatably connected to the groove on the inner wall of the fixing groove (12) via a bearing, and one end of the threaded rod (13) away from the bearing passes through the fixing groove (12) and extends to the outside thereof where a rotating block (14) is installed.

6. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 5, characterized in that: The surface of the threaded rod (13) is threadedly connected with a threaded block (15), and a moving block (16) is installed on the top of the threaded block (15). The top of the moving block (16) passes through the fixing groove (12) and the clamping groove (11) in sequence from bottom to top and extends to the inside of the clamping groove (11).

7. A low-temperature liquid tank truck depressurized air cooling capacity recovery device according to claim 6, characterized in that: A movable block (17) is installed on the side of the moving block (16) away from the threaded block (15), a limiting block (18) is installed on the movable block (17), a limiting groove (19) is provided on the side of the clamping block (10) close to the limiting block (18) and corresponding to the position of the limiting block (18), and a side of the limiting block (18) close to the limiting groove (19) penetrates the limiting groove (19) and extends to the inside thereof to contact the inner wall of the limiting groove (19).

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