An emergency pressure relief device for explosion-proof NMP recovery

Abstract

This utility model relates to the field of motor manufacturing technology, specifically an explosion-proof NMP recovery emergency pressure relief device, comprising an outer protective shell, a storage tank, and a telescopic rod. Pressure gauges and vent pipes are respectively installed on both sides of the outer protective shell. A flange and a switch valve are provided on one side of the vent pipe. A discharge valve is installed on one side of the outer protective shell corresponding to the bottom of the pressure gauge via a pre-drilled port and bolts. A control panel is located on the front of the outer protective shell, and a support frame is located at the bottom of the outer protective shell. The control panel moves the telescopic rod and piston upwards to above the connection point between the exhaust pipe inlet and the pressure relief pipe, allowing the pressure inside the storage tank to be released into the exhaust pipe, preventing excessive pressure buildup inside the storage tank and potential damage. An activated carbon filter purifies and filters harmful substances or odors in the exhaust gas, and the filtered gas is then discharged, improving environmental friendliness.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, specifically to an explosion-proof NMP recovery emergency pressure relief device. Background Technology

[0002] With the development of technology, people are paying more and more attention to environmental protection and using more and more clean energy. As a clean energy source, lithium batteries are being used in more and more places. NMP is widely used in the production of lithium batteries due to its advantages such as high flash point and safety. However, during the drying process, NMP will turn into a gas and be released into the air. If NMP is released directly into the air without treatment, it will not only be harmful to human health, but also cause air pollution.

[0003] NMP is typically stored in tanks. However, prolonged storage of NMP releases pressure, and accumulated pressure within the tank can damage it. Furthermore, most storage tanks lack external protection, making them susceptible to impacts and leaks. Therefore, this paper proposes an explosion-proof NMP recovery emergency pressure relief device to facilitate pressure release from the storage tank, prevent excessive pressure buildup and damage, and provide some protection to the tank's exterior, reducing the risk of impact damage. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an explosion-proof NMP recovery emergency pressure relief device to facilitate the release of pressure inside the storage tank, prevent excessive pressure buildup from damaging the storage tank, and provide some protection to the outer perimeter of the storage tank, reducing the risk of damage from impacts.

[0005] The technical solution adopted by this utility model to solve its technical problem is an explosion-proof NMP recovery emergency pressure relief device, including an outer protective shell, a storage tank and a telescopic rod. Pressure gauges and vent pipes are respectively provided on both sides of the outer protective shell. A flange and a switch valve are provided on one side of the vent pipe. A discharge valve is installed on one side of the outer protective shell corresponding to the bottom of the pressure gauge through a reserved port and bolts. A control panel is provided on the front side of the outer protective shell. A support frame is provided at the bottom of the outer protective shell.

[0006] The outer protective shell contains a storage tank, and the top of the storage tank is equipped with a pressure relief pipe. An exhaust pipe is installed on one side of the pressure relief pipe through a reserved port and bolts.

[0007] Specifically, a filter screen is installed inside the flange by bolts, and a sealing ring is used to seal the gaps at the connection between the air outlet pipe, the flange, and the switch valve.

[0008] Specifically, each of the outer protective shells has a buffer pillar inside, and the outer periphery of the buffer pillars inside the outer protective shell is filled with a sponge layer, and the inner wall of the outer protective shell is adhered with an anti-collision pad.

[0009] Specifically, a piston is provided at the bottom of the pressure relief pipe, and a sealing ring that fits the inner wall of the pressure relief pipe is adhered to the periphery of the piston. The top of the piston is connected to a telescopic rod by a screw, and the top of the telescopic rod is connected to a spring by a screw. The top of the spring is connected to the top of the pressure relief pipe.

[0010] Specifically, the exhaust pipe outlet is connected to the activated carbon filter via screws.

[0011] Specifically, the output terminal of the control panel is electrically connected to the switching valve, the discharge valve, and the input terminal of the telescopic rod via wires.

[0012] The beneficial effects of this utility model are:

[0013] The explosion-proof NMP recovery emergency pressure relief device described in this utility model has a control panel that moves the telescopic rod and piston upwards to the area above the connection between the exhaust pipe inlet and the pressure relief pipe. The pressure inside the storage tank can be released into the exhaust pipe, preventing excessive pressure from accumulating inside the storage tank and causing damage. The activated carbon filter can purify and filter harmful substances or odors contained in the exhaust gas. The filtered gas is then released, which improves environmental friendliness.

[0014] The present invention discloses an explosion-proof NMP recovery emergency pressure relief device, in which the storage tank is wrapped with a sponge layer and an outer protective shell. When the outer wall of the outer protective shell is subjected to a certain pressure, the buffer column, together with the sponge layer and the anti-collision pad, can reduce the pressure and reduce the damage to the storage tank caused by impact. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

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

[0017] Figure 2 This is a schematic diagram of the air outlet pipe of this utility model;

[0018] Figure 3 This is a schematic diagram of the outer protective shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressure relief pipe of this utility model;

[0020] In the diagram: 1. Outer protective shell; 2. Pressure gauge; 3. Vent pipe; 4. Flange; 5. Filter screen; 6. Switch valve; 7. Control panel; 8. Discharge valve; 9. Support frame; 10. Buffer column; 11. Sponge layer; 12. Anti-collision pad; 13. Storage tank; 14. Pressure relief pipe; 15. Piston; 16. Telescopic rod; 17. Spring; 18. Exhaust pipe; 19. Activated carbon filter screen. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] To release pressure inside the storage tank, prevent excessive pressure buildup from damaging the tank, and to provide some protection to the tank's exterior to reduce the risk of impact damage, such as... Figure 1-4 As shown, the explosion-proof NMP recovery emergency pressure relief device of this utility model includes an outer protective shell 1, a storage tank 13 and a telescopic rod 16. The outer protective shell 1 is provided with a pressure gauge 2 and an air outlet pipe 3 on both sides respectively. The air outlet pipe 3 is provided with a flange 4 and a switch valve 6 on one side. The discharge valve 8 is installed on the side of the outer protective shell 1 corresponding to the bottom of the pressure gauge 2 through a reserved port and bolts. The outer protective shell 1 is provided with a control panel 7 on the front side and a support frame 9 on the bottom of the outer protective shell 1.

[0023] The outer protective shell 1 contains a storage tank 13, and the top of the storage tank 13 is provided with a pressure relief pipe 14. An exhaust pipe 18 is installed on one side of the pressure relief pipe 14 through a reserved port and bolts.

[0024] During use, the storage tank 13 stores NMP. The control panel 7 can be used to activate the switch valve 6 and the discharge valve 8 to discharge the gas and liquid in the storage tank 13. The filter screen 5 can filter impurities in the discharged gas. After a period of use, workers can periodically remove the bolts to remove the filter screen 5 and clean and replace it regularly.

[0025] The probe of pressure gauge 2 passes through the outer protective shell 1 and the anti-collision pad 12 and is located inside the storage tank 13. It can detect the pressure in real time. When the detected pressure is large, the control panel 7 drives the telescopic rod 16 and piston 15 to move upward to the connection between the air inlet of the exhaust pipe 18 and the pressure relief pipe 14. The pressure in the storage tank 13 can enter the exhaust pipe 18 for discharge, preventing the large pressure from accumulating in the storage tank 13 and causing damage to the storage tank 13. After the pressure is released, the spring 17 can squeeze the piston 15 tightly against the bottom of the pressure relief pipe 14 to prevent gas leakage.

[0026] The storage tank 13 is surrounded by a sponge layer 11 and an outer protective shell 1. When the outer wall of the outer protective shell 1 is subjected to a certain pressure, the buffer column 10, together with the sponge layer 11 and the anti-collision pad 12, can reduce the pressure and reduce the damage to the storage tank 13 caused by impact.

[0027] To filter the emitted gases, for example, such as Figure 1 , Figure 2 As shown, this utility model also includes a filter screen 5 installed inside the flange 4 by bolts, and a sealing ring used to seal the gap at the connection between the air outlet pipe 3, the flange 4, and the switch valve 6.

[0028] During use, the gas in the storage tank 13 is discharged, and impurities in the gas are filtered through the filter screen 5. Workers can periodically disassemble the bolts to remove the filter screen 5 for cleaning and replacement.

[0029] For example, such as Figure 1 , Figure 3 As shown, the present invention also includes buffer pillars 10 in the inner cavity of the outer protective shell 1, a sponge layer 11 filling the outer cavity of the outer protective shell 1 around the buffer pillars 10, and anti-collision pads 12 adhering to the inner wall of the outer protective shell 1.

[0030] When the outer wall of the outer protective shell 1 is subjected to a certain pressure during use, the buffer column 10, together with the sponge layer 11 and the anti-collision pad 12, can reduce the pressure and prevent the storage tank 13 from being damaged by impact.

[0031] For example, such as Figure 1 , Figure 4 As shown, the present invention also includes a piston 15 at the bottom of the pressure relief pipe 14, and a sealing ring that fits the inner wall of the pressure relief pipe 14 is attached to the periphery of the piston 15. The top of the piston 15 is connected to a telescopic rod 16 by a screw, and the top of the telescopic rod 16 is connected to a spring 17 by a screw. The top of the spring 17 is connected to the top of the inner wall of the pressure relief pipe 14.

[0032] When in use, if the pressure gauge 2 shows that the pressure inside the storage tank 13 is too high, the control panel 7 will move the telescopic rod 16 and the piston 15 upwards to above the air inlet of the exhaust pipe 18. The pressure inside the storage tank 13 will be released through the air outlet into the exhaust pipe 18 to prevent the excessive pressure from accumulating inside the storage tank 13 and causing damage to the storage tank 13.

[0033] Using activated carbon filter 19 to purify and filter harmful substances or odors contained in the depressurized gas, and then releasing the filtered gas, can improve environmental protection.

[0034] For example, such as Figure 1 , Figure 4As shown, the present invention also includes a screw connecting the exhaust pipe 18 to the activated carbon filter 19 at the air outlet.

[0035] When in use, activated carbon filter 19 is used to purify and filter harmful substances or odors contained in the depressurized gas. The filtered gas is then discharged, which can improve environmental protection.

[0036] For example, such as Figure 1 , Figure 2 , Figure 4 As shown, this utility model also includes an electrical connection between the output end of the control panel 7 and the input ends of the switching valve 6, the discharge valve 8, and the telescopic rod 16 via wires.

[0037] During use, the control panel 7 can be used to activate the switch valve 6 and the discharge valve 8 to discharge the gas and liquid in the storage tank 13, and the telescopic rod 16 can be activated to release pressure according to the pressure value in the storage tank 13.

[0038] In use, the storage tank 13 stores NMP. The control panel 7 can be used to activate the switch valve 6 and the discharge valve 8 to discharge the gas and liquid in the storage tank 13. The filter screen 5 can filter impurities in the discharged gas. After a period of use, workers can periodically remove the bolts to remove the filter screen 5 and clean and replace it regularly.

[0039] The probe of pressure gauge 2 passes through the outer protective shell 1 and the anti-collision pad 12 and is located inside the storage tank 13. It can detect the pressure in real time. When the detected pressure is large, the control panel 7 drives the telescopic rod 16 and piston 15 to move upward to the connection between the air inlet of the exhaust pipe 18 and the pressure relief pipe 14. The pressure in the storage tank 13 can enter the exhaust pipe 18 for discharge, preventing the large pressure from accumulating in the storage tank 13 and causing damage to the storage tank 13. The elasticity of the spring 17 can squeeze the piston 15 tightly against the bottom of the pressure relief pipe 14 to prevent gas leakage.

[0040] The storage tank 13 is surrounded by a sponge layer 11 and an outer protective shell 1. When the outer wall of the outer protective shell 1 is subjected to a certain pressure, the buffer column 10, together with the sponge layer 11 and the anti-collision pad 12, can reduce the pressure and reduce the damage to the storage tank 13 caused by impact.

[0041] Using activated carbon filter 19 to purify and filter harmful substances or odors contained in the depressurized gas, and then releasing the filtered gas, can improve environmental protection.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-explosion type NMP recovery emergency pressure relief device, characterized in that, It includes an outer protective shell (1), a storage tank (13) and a telescopic rod (16). The outer protective shell (1) is provided with a pressure gauge (2) and an air outlet pipe (3) on both sides respectively. The air outlet pipe (3) is provided with a flange (4) and a switch valve (6) on one side. The discharge valve (8) is installed on the bottom of the pressure gauge (2) on one side of the outer protective shell (1) through a reserved port and bolts. The front of the outer protective shell (1) is provided with a control panel (7). The bottom of the outer protective shell (1) is provided with a support frame (9). The outer protective shell (1) is provided with a storage tank (13), and the top of the storage tank (13) is provided with a pressure relief pipe (14). An exhaust pipe (18) is installed on one side of the pressure relief pipe (14) through a reserved port and bolts.

2. The explosion-proof NMP recovery emergency pressure relief device according to claim 1, characterized in that, The filter screen (5) is installed inside the flange (4) by bolts, and the gaps at the connection between the air outlet pipe (3), the flange (4), and the switch valve (6) are sealed with a sealing ring.

3. The explosion-proof NMP recovery emergency pressure relief device according to claim 1, characterized in that, The inner cavity of the outer protective shell (1) is provided with buffer pillars (10), and the outer cavity of the outer protective shell (1) is filled with a sponge layer (11) corresponding to the buffer pillars (10), and the inner wall of the outer protective shell (1) is adhered with anti-collision pads (12).

4. The explosion-proof NMP recovery emergency pressure relief device according to claim 1, characterized in that, The bottom of the pressure relief pipe (14) is provided with a piston (15), and a sealing ring that fits the inner wall of the pressure relief pipe (14) is attached to the periphery of the piston (15). The top of the piston (15) is connected to a telescopic rod (16) by a screw. The top of the telescopic rod (16) is connected to a spring (17) by a screw, and the top of the spring (17) is connected to the top of the pressure relief pipe (14).

5. The explosion-proof NMP recovery emergency pressure relief device according to claim 1, characterized in that, The exhaust pipe (18) is connected to the activated carbon filter (19) at the air outlet by screws.

6. The explosion-proof NMP recovery emergency pressure relief device according to claim 1, characterized in that, The output end of the control panel (7) is electrically connected to the input end of the switching valve (6), the discharge valve (8), and the telescopic rod (16) via wires.

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