Chemical low-temperature storage tank capable of automatically relieving pressure

Abstract

The utility model relates to the technical field of storage tanks, in particular to a chemical low-temperature storage tank capable of automatically relieving pressure, which comprises two symmetrically arranged supports, a tank body is fixedly connected between the two supports, a first exhaust pipe is fixedly connected to the top surface of the tank body, and a U-shaped frame is fixedly connected to the top surface of the tank body. The device has the advantages that the barometer can monitor the air pressure in the tank body, the electromagnetic valve can be controlled to be opened when the air pressure is too high, gas flows into the adsorption box from the first exhaust pipe, toxic substances in the gas can be adsorbed through the activated carbon adsorption plate, the toxic gas is prevented from being exhausted into the atmosphere, and the service life of the device is prolonged. When the adsorption box needs to be overhauled, the hydraulic cylinder can be started to drive the pressing plate to move upwards until the clamping plate completely moves out of the clamping groove, locking of the adsorption box can be relieved, then the adsorption box can be rapidly detached from the U-shaped frame, a large number of bolts do not need to be detached, and the overhauling difficulty of the adsorption box can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of storage tank, especially a chemical low temperature storage tank of automatic pressure relief. BACKGROUND

[0002] Chemical storage tank, as the name implies, is a storage tank used in the chemical industry, mainly used for storing chemical raw materials, finished products and intermediate products. These storage tanks are usually made of high-strength, corrosion-resistant materials such as steel or glass steel to ensure that the medium does not leak or be contaminated during storage. The design of chemical storage tank usually takes into account the nature of the medium, storage temperature, pressure and other parameters to ensure its safety and stability.

[0003] During the use of the chemical low temperature storage tank, the gas pressure inside the storage tank will fluctuate with the change of temperature and medium state. When the pressure exceeds the design value, pressure relief treatment needs to be carried out to ensure the safe operation of the storage tank. The traditional pressure relief device usually includes an exhaust pipe and an adsorption mechanism, the output end of the exhaust pipe is connected to the adsorption mechanism for adsorbing and purifying the exhaust gas. However, the adsorption mechanism is usually installed on the storage tank by a large number of bolts, which not only increases the installation difficulty, but also makes the disassembly and maintenance extremely inconvenient. SUMMARY

[0004] The purpose of the utility model is to solve at least one of the technical defects mentioned above.

[0005] To this end, one purpose of the utility model is to provide a chemical low temperature storage tank of automatic pressure relief to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a chemical low temperature storage tank of automatic pressure relief, which comprises two symmetrical supports, a tank body fixedly connected between the two supports, a first exhaust pipe fixedly connected to the top surface of the tank body, a U-shaped bracket fixedly connected to the top surface of the tank body, the first exhaust pipe located inside the U-shaped bracket, an adsorption box placed on the top surface of the U-shaped bracket, an air inlet pipe fixedly connected to the bottom surface of the adsorption box, the air inlet pipe inserted into the first exhaust pipe, a cover plate fixedly installed on the top surface of the adsorption box by bolts, a second exhaust pipe fixedly connected to the top surface of the cover plate, the axis of the second exhaust pipe coincides with that of the air inlet pipe, a frame fixedly connected to the bottom surface of the cover plate, a plurality of linear array activated carbon adsorption plates fixedly connected to the inner wall of the frame, two symmetrical hydraulic cylinders fixedly connected to the inner wall of the U-shaped bracket, one pressure plate fixedly connected to the output end of each hydraulic cylinder, a locking plate fixedly connected to the left and right sides of the adsorption box, the bottom surface of the pressure plate is attached to the top surface of the locking plate, a clamping plate fixedly connected to the bottom surface of the pressure plate, the clamping plate is clamped with the locking plate.

[0007] Preferably, the bottom surface of the pressing plate is fixedly connected with a guide rod, the guide rod is slidably connected with the U-shaped frame, and the length of the guide rod is equal to the telescopic length of the hydraulic cylinder.

[0008] Preferably, the top surface of the locking plate is provided with a clamping groove, and the clamping plate is clamped with the locking plate through the clamping groove.

[0009] Preferably, the top surface of the U-shaped frame is provided with a avoiding hole, the top end of the first exhaust pipe is located in the avoiding hole, and the top surface of the first exhaust pipe is attached to the bottom surface of the adsorption box.

[0010] Preferably, the top of the tank is fixedly provided with a barometer, one side of the first exhaust pipe is provided with an electromagnetic valve, and the barometer is electrically connected with the electromagnetic valve.

[0011] Preferably, the bottom surface of the adsorption box is fixedly connected with a plurality of symmetrically arranged positioning pins, the top surface of the U-shaped frame is provided with a plurality of symmetrically arranged positioning holes, and the positioning pins are slidably connected with the U-shaped frame through the positioning holes.

[0012] Preferably, the bottom surface of the adsorption box is fixedly connected with a sealing ring, the top surface of the U-shaped frame is provided with a sealing groove, and the sealing ring is slidably connected with the U-shaped frame through the sealing groove.

[0013] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0014] 1. When the storage tank needs to be used, first, place the adsorption box on the U-shaped frame, and insert the positioning pins into the positioning holes, so that the adsorption box is clamped with the U-shaped frame through the positioning pins, the connection between the adsorption box and the U-shaped frame is more stable, then open the hydraulic cylinder to drive the pressing plate to move downward, until the bottom surface of the pressing plate is attached to the top surface of the locking plate, then the clamping plate is inserted into the clamping groove, the adsorption box can be quickly installed, the barometer can monitor the air pressure in the tank, when the air pressure is too high, the electromagnetic valve can be controlled to open, the gas flows into the adsorption box from the first exhaust pipe, and the toxic substances in the gas can be adsorbed by the activated carbon adsorption plate, so that the toxic gas is prevented from being discharged into the atmosphere.

[0015] 2. When the adsorption box needs to be repaired, the hydraulic cylinder can be opened to drive the pressing plate to move upward, until the clamping plate moves out of the clamping groove, the locking of the adsorption box can be released, then the adsorption box can be quickly disassembled from the U-shaped frame, without the need to disassemble a large number of bolts, so that the difficulty of repairing the adsorption box is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the assembly of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the adsorption box of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the cover plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure at point A of this utility model.

[0021] In the diagram: 1-Support, 2-Tank body, 3-First exhaust pipe, 4-U-shaped frame, 5-Adsorption box, 51-Inlet pipe, 6-Cover plate, 61-Second exhaust pipe, 7-Frame, 8-Activated carbon adsorption plate, 9-Hydraulic cylinder, 10-Pressure plate, 11-Locking plate, 12-Clamping plate, 13-Guide rod, 14-Clamping groove, 15-Allowing hole, 16-Barometer, 17-Solenoid valve, 18-Positioning pin, 19-Positioning hole, 20-Sealing ring, 21-Sealing groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0023] like Figures 1 to 5 As shown, an automatically depressurized cryogenic chemical storage tank includes two symmetrically arranged supports 1, with a tank body 2 fixedly connected between the two supports 1. A first exhaust pipe 3 is fixedly connected to the top surface of the tank body 2, and a U-shaped frame 4 is fixedly connected to the top surface of the tank body 2. The first exhaust pipe 3 is located inside the U-shaped frame 4. An adsorption box 5 is placed on the top surface of the U-shaped frame 4, and an air inlet pipe 51 is fixedly connected to the bottom surface of the adsorption box 5, which is inserted into the first exhaust pipe 3. A cover plate 6 is bolted to the top surface of the adsorption box 5, and a second exhaust pipe 6 is fixedly connected to the top surface of the cover plate 6. Pipe 61 is aligned with the axis of intake pipe 51. The bottom surface of the cover plate 6 is fixedly connected to the second exhaust pipe 61. A frame 7 is fixedly connected to the inner wall of the frame 7. Several linear arrays of activated carbon adsorption plates 8 are fixedly connected to the inner wall of the U-shaped frame 4. Two symmetrically arranged hydraulic cylinders 9 are fixedly connected to the inner wall of the frame 4. A pressure plate 10 is fixedly connected to the output end of each hydraulic cylinder 9. Locking plates 11 are fixedly connected to both sides of the adsorption box 5. The bottom surface of the pressure plate 10 is in contact with the top surface of the locking plate 11. A clamping plate 12 is fixedly connected to the bottom surface of the pressure plate 10. The clamping plate 12 is engaged with the locking plate 11.

[0024] As an optional technical scheme of the utility model, the bottom surface of the pressing plate 10 is fixedly connected with a guide rod 13, the guide rod 13 is slidably connected with the U-shaped frame 4, the length of the guide rod 13 is equal to the telescopic length of the hydraulic cylinder 9, opening the hydraulic cylinder 9 drives the pressing plate 10 to move downwards, which can drive the guide rod 13 to slide relative to the U-shaped frame 4, facilitating the guiding of the movement of the pressing plate 10.

[0025] As an optional technical scheme of the utility model, the top surface of the locking plate 11 is provided with a clamping groove 14, the clamping plate 12 is clamped with the locking plate 11 through the clamping groove 14, opening the hydraulic cylinder 9 drives the pressing plate 10 to move upwards, until the clamping plate 12 moves out of the clamping groove 14 completely, the locking of the adsorption box 5 can be released, and then the adsorption box 5 can be quickly disassembled from the U-shaped frame 4, without the need of disassembling a large number of bolts, which can reduce the maintenance difficulty of the adsorption box 5.

[0026] As an optional technical scheme of the utility model, the top surface of the U-shaped frame 4 is provided with an avoiding hole 15, the top end of the first exhaust pipe 3 is located inside the avoiding hole 15, the top surface of the first exhaust pipe 3 is attached to the bottom surface of the adsorption box 5, and the avoiding hole 15 prevents the U-shaped frame 4 from interfering with the connection between the first exhaust pipe 3 and the adsorption box 5.

[0027] As an optional technical scheme of the utility model, the top of the tank body 2 is fixedly provided with a barometer 16, one side of the first exhaust pipe 3 is provided with an electromagnetic valve 17, the barometer 16 is electrically connected with the electromagnetic valve 17, the barometer 16 can monitor the air pressure inside the tank body 2, the electromagnetic valve 17 can be controlled to open when the air pressure is too high, the gas can flow into the adsorption box 5 from the first exhaust pipe 3, and the toxic substances in the gas can be adsorbed through the activated carbon adsorption plate 8, preventing the toxic gas from being discharged into the atmosphere.

[0028] As an optional technical scheme of the utility model, the bottom surface of the adsorption box 5 is fixedly connected with a plurality of symmetrically arranged positioning pins 18, the top surface of the U-shaped frame 4 is provided with a plurality of symmetrically arranged positioning holes 19, the positioning pins 18 are slidably connected with the U-shaped frame 4 through the positioning holes 19, the positioning pins 18 are inserted into the positioning holes 19, and at this time, the adsorption box 5 is clamped with the U-shaped frame 4 through the positioning pins 18, which can make the connection of the adsorption box 5 and the U-shaped frame 4 more stable.

[0029] As an optional technical scheme of the utility model, the bottom surface of the adsorption box 5 is fixedly connected with a sealing ring 20, the top surface of the U-shaped frame 4 is provided with a sealing groove 21, and the sealing ring 20 is slidably connected with the U-shaped frame 4 through the sealing groove 21, which can improve the sealing performance between the adsorption box 5 and the U-shaped frame 4.

[0030] A chemical low-temperature storage tank capable of automatic pressure relief has the following working principle:

[0031] 1): When the use of the storage tank is needed, first place the adsorption box 5 on the U-shaped frame 4, and insert the positioning pin 18 into the positioning hole 19, open the hydraulic cylinder 9 to drive the pressing plate 10 to move downward, until the bottom surface of the pressing plate 10 is in close contact with the top surface of the locking plate 11, then the clamping plate 12 is inserted into the clamping groove 14, and the quick installation of the adsorption box 5 can be completed.

[0032] 2): The gas pressure gauge 16 can monitor the gas pressure in the tank body 2, and when the gas pressure is too high, the electromagnetic valve 17 can be controlled to open, and the gas will flow from the first exhaust pipe 3 into the adsorption box 5, and the toxic substances in the gas can be adsorbed by the activated carbon adsorption plate 8, preventing the toxic gas from being discharged into the atmosphere.

[0033] 3): When the adsorption box 5 needs to be repaired, the hydraulic cylinder 9 can be opened to drive the pressing plate 10 to move upward, until the clamping plate 12 is completely moved out of the clamping groove 14, and the locking of the adsorption box 5 can be released, and then the adsorption box 5 can be quickly detached from the U-shaped frame 4.

[0034] In summary, the automatic pressure relief chemical low-temperature storage tank, when the use of the storage tank is needed, first place the adsorption box 5 on the U-shaped frame 4, and insert the positioning pin 18 into the positioning hole 19, at this time the adsorption box 5 is clamped with the U-shaped frame 4 through the positioning pin 18, which can make the connection of the adsorption box 5 and the U-shaped frame 4 more stable, then open the hydraulic cylinder 9 to drive the pressing plate 10 to move downward, until the bottom surface of the pressing plate 10 is in close contact with the top surface of the locking plate 11, then the clamping plate 12 is inserted into the clamping groove 14, and the quick installation of the adsorption box 5 can be completed, the gas pressure gauge 16 can monitor the gas pressure in the tank body 2, and when the gas pressure is too high, the electromagnetic valve 17 can be controlled to open, and the gas will flow from the first exhaust pipe 3 into the adsorption box 5, and the toxic substances in the gas can be adsorbed by the activated carbon adsorption plate 8, preventing the toxic gas from being discharged into the atmosphere, when the adsorption box 5 needs to be repaired, the hydraulic cylinder 9 can be opened to drive the pressing plate 10 to move upward, until the clamping plate 12 is completely moved out of the clamping groove 14, and the locking of the adsorption box 5 can be released, and then the adsorption box 5 can be quickly detached from the U-shaped frame 4, without the need to disassemble a large number of bolts, which can reduce the difficulty of repairing the adsorption box 5.

Claims

1. A chemical low-temperature storage tank capable of automatic pressure relief, characterized in that: The utility model provides a kind of activated carbon adsorption device, including two symmetrically arranged supports (1), two described supports (1) between fixedly connected with tank (2), the top surface of the tank (2) is fixedly connected with first exhaust pipe (3), the top surface of the tank (2) is fixedly connected with U-shaped frame (4), the first exhaust pipe (3) is located inside U-shaped frame (4), the top surface of the U-shaped frame (4) is placed with adsorption box (5), the bottom surface of the adsorption box (5) is fixedly connected with air inlet pipe (51), the air inlet pipe (51) is inserted into first exhaust pipe (3) inside, the top surface of the adsorption box (5) is fixedly installed with cover plate (6) by bolt, the top surface of the cover plate (6) is fixedly connected with the second exhaust pipe (61) with the axis of air inlet pipe (51) Coincidence, the second exhaust pipe (61), the bottom surface of the cover plate (6) is fixedly connected with frame (7), the inner wall of the frame (7) is fixedly connected with a plurality of linear array activated carbon adsorption plate (8), the U-shaped frame (4) inner wall is fixedly connected with two symmetrically arranged hydraulic cylinder (9), the output end of each described hydraulic cylinder (9) is fixedly connected with a pressing plate (10), the left and right sides of the adsorption box (5) are fixedly connected with locking plate (11), the bottom surface of the pressing plate (10) and the top surface of the locking plate (11) are attached, the bottom surface of the pressing plate (10) is fixedly connected with clamping plate (12), the clamping plate (12) and locking plate (11) are clamped.

2. The low-temperature chemical storage tank capable of automatic pressure relief according to claim 1, characterized in that: The bottom surface of the pressing plate (10) is fixedly connected with guide rod (13), the guide rod (13) is slidably connected with U-shaped frame (4), and the length of the guide rod (13) is equal to the telescopic length of the hydraulic cylinder (9).

3. The self-relieving low-temperature chemical storage tank according to claim 2, characterized in that: The top surface of the locking plate (11) is provided with a clamping groove (14), and the clamping plate (12) is clamped with the locking plate (11) through the clamping groove (14).

4. The self-relieving low-temperature chemical storage tank according to claim 3, characterized in that: The top surface of the U-shaped frame (4) is provided with a relief hole (15), and the top end of the first exhaust pipe (3) is located in the relief hole (15).

5. The self-relieving chemical cryogenic storage tank of claim 4, wherein: The top of the tank (2) is fixedly installed with a barometer (16), and one side of the first exhaust pipe (3) is provided with an electromagnetic valve (17), and the barometer (16) is electrically connected with the electromagnetic valve (17).

6. The self-relieving chemical cryogenic storage tank of claim 5, wherein: The bottom surface of the adsorption box (5) is fixedly connected with a plurality of symmetrically arranged positioning pins (18), the top surface of the U-shaped frame (4) is provided with a plurality of symmetrically arranged positioning holes (19), and the positioning pins (18) are slidably connected with the U-shaped frame (4) through the positioning holes (19).

7. The self-relieving chemical cryogenic storage tank of claim 6, wherein: The bottom surface of the adsorption box (5) is fixedly connected with a sealing ring (20), the top surface of the U-shaped frame (4) is provided with a sealing groove (21), and the sealing ring (20) is slidably connected with the U-shaped frame (4) through the sealing groove (21).

Images