Pressure relief device of pressure vessel

Abstract

The utility model provides a pressure relief device of a pressure vessel, which relates to the technical field of pressure vessels and comprises a shell and a cooling box, cooling liquid is arranged in the cooling box, the outer surface of the shell is fixedly communicated with an air outlet hard pipe, one end of the air outlet hard pipe far away from the shell penetrates through the cooling box, and a first pressure relief valve is arranged on the air outlet hard pipe. According to the utility model, gas in the pressure container sequentially passes through the gas outlet hard pipes and enters the shell, and meanwhile, cooling liquid in the cooling box can cool the gas in the gas outlet hard pipes, so that the damage of high-temperature gas to the device is avoided, and meanwhile, the gas entering the shell is primarily filtered and purified by the filter plate; then, by starting a circulating water pump, the absorption liquid in the shell is pumped out by a liquid pumping hard pipe, is conveyed into a flow guide hard pipe through a conveying hard pipe and is sprayed through a spray head, so that the gas entering the shell is in contact with the absorption liquid, the absorption liquid absorbs harmful gas in the gas, and absorption treatment of the gas is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a pressure relief device for a pressure vessel. Background Art

[0002] Pressure vessels refer to closed equipment that holds gas or liquid and bears a certain pressure. They are widely used in the chemical industry and are often used as reactors and preparation reactors. Since some chemical reactions need to be carried out under high pressure, after the reaction is completed, in order to ensure safety, it is necessary to first use the pressure relief mechanism on the pressure vessel to discharge the high-pressure air in the pressure vessel, and then open the pressure vessel to take out the reacted materials.

[0003] Sometimes chemical reactions in pressure vessels produce some toxic gases. However, when the pressure relief device on the existing pressure vessel releases pressure, the toxic gases will be discharged into the external environment together with the exhaust pipe. Once inhaled by nearby workers, it will affect the health of the workers, and the safety and environmental protection are poor. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that toxic gases will be discharged into the external environment together with the exhaust pipe, which will affect the health of nearby workers once inhaled, and has poor safety and environmental protection, and proposes a pressure relief device for a pressure vessel.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pressure relief device of a pressure vessel, comprising a shell and a cooling box, wherein a coolant is arranged in the cooling box, an outer surface of the shell is fixedly connected with an air outlet hard pipe, an end of the air outlet hard pipe away from the shell passes through the cooling box, a first pressure relief valve is arranged on the air outlet hard pipe, a mixing mechanism is arranged in the shell, an adsorption mechanism is arranged in the shell, a first support plate is fixedly connected with the outer surface of the shell, a circulating water pump is installed on the top of the first support plate, an input end of the circulating water pump is fixedly connected with a liquid extraction hard pipe, an end of the liquid extraction hard pipe away from the circulating water pump passes through the shell, a fixing block is fixedly connected with the inner side of the shell, a guide hard pipe is arranged on one side of the fixing block, a nozzle is arranged at the bottom of the guide hard pipe, an output end of the circulating water pump is fixedly connected with a delivery hard pipe, an end of the delivery hard pipe away from the circulating water pump passes through the shell and is connected with the inside of the guide hard pipe, an absorption liquid is arranged at the inner bottom of the shell, and a filter plate is fixedly connected inside the shell.

[0006] Preferably, the mixing mechanism comprises two first rotating shafts, the two first rotating shafts are rotatably connected in the shell, one end of the two first rotating shafts movably passes through the shell, and the outer surfaces of the two first rotating shafts are fixedly connected with stirring plates.

[0007] Preferably, gears are fixedly sleeved on the outer surfaces of the two first rotating shafts, the two gears are meshed and connected, and a second support plate is fixedly connected to the outer surface of the shell.

[0008] Preferably, a mounting seat is fixedly connected to the top of the second support plate, a first drive motor is fixedly installed on the top of the mounting seat, an output end of the first drive motor is fixedly connected to one of the first rotating shafts, and the height of the absorption liquid is lower than the height of the first rotating shaft.

[0009] Preferably, the adsorption mechanism includes a second drive motor, which is fixedly mounted on the top of the shell, and the output end of the second drive motor is fixedly connected to a second rotating shaft, the bottom end of the second rotating shaft movably passes through the shell, and the outer surface of the second rotating shaft is fixedly connected to an activated carbon adsorption plate.

[0010] Preferably, the top of the air outlet rigid pipe is fixedly connected to a pressure relief rigid pipe, and a second pressure relief valve is provided on the pressure relief rigid pipe.

[0011] Preferably, a mounting flange is fixedly connected to the outer surface of one end of the air outlet rigid pipe, a one-way valve is provided on the air outlet rigid pipe, and the top of the shell is fixedly connected to an exhaust rigid pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by installing one end of the air outlet hard pipe on the pressure relief port of the pressure vessel, when the pressure vessel needs to be relieved, the first pressure relief valve is opened to allow the gas in the pressure vessel to enter the shell through the air outlet hard pipe in sequence. At the same time, the coolant in the cooling box can cool the gas in the air outlet hard pipe, thereby avoiding damage to the device caused by the high-temperature gas. At the same time, the filter plate performs preliminary filtration and impurity removal on the gas entering the shell. Subsequently, by starting the circulating water pump, the liquid extraction hard pipe extracts the absorption liquid in the shell, and transports it to the guide hard pipe through the delivery hard pipe, and sprays it through the nozzle, so that the gas entering the shell contacts with the absorption liquid, and the absorption liquid absorbs the harmful gas in the gas, which facilitates the absorption treatment of the gas and improves the convenience.

[0014] 2. In the utility model, a mixing mechanism is provided to start the first drive motor, so that the first drive motor drives one of the first rotating shafts to rotate. Since the two gears are meshed and connected, the two first rotating shafts drive the stirring plate to rotate, so that the stirring plate brings the gas into the absorption liquid, so that part of the gas contacts the absorption liquid, thereby improving the absorption effect of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the main structure of a pressure relief device for a pressure vessel proposed by the utility model;

[0016] Figure 2 This is a rear structural stereogram of a pressure relief device for a pressure vessel proposed by the utility model;

[0017] Figure 3 A sectional structural stereogram of a pressure relief device for a pressure vessel proposed by the utility model;

[0018] Figure 4 The utility model provides a structural stereogram of an adsorption mechanism in a pressure relief device of a pressure vessel;

[0019] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0020] Legend: 1. Shell; 2. Cooling box; 3. Exhaust pipe; 4. First pressure relief valve; 5. Mixing mechanism; 501. First rotating shaft; 502. Stirring plate; 503. Gear; 504. Second support plate; 505. Mounting seat; 506. First drive motor; 6. Adsorption mechanism; 601. Second drive motor; 602. Second rotating shaft; 603. Activated carbon adsorption plate; 7. First support plate; 8. Circulating water pump; 9. Liquid extraction pipe; 10. Fixing block; 11. Diversion pipe; 12. Nozzle; 13. Delivery pipe; 14. Filter plate; 15. Pressure relief pipe; 16. Second pressure relief valve; 17. Mounting flange; 718. One-way valve; 19. Exhaust pipe. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Example 1: Figure 1 - Figure 5As shown, the utility model provides a pressure relief device for a pressure vessel, including a shell 1 and a cooling box 2, wherein a coolant is arranged in the cooling box 2, an outer surface of the shell 1 is fixedly connected with an air outlet hard pipe 3, an end of the air outlet hard pipe 3 away from the shell 1 passes through the cooling box 2, a first pressure relief valve 4 is arranged on the air outlet hard pipe 3, a mixing mechanism 5 is arranged in the shell 1, an adsorption mechanism 6 is arranged in the shell 1, a first support plate 7 is fixedly connected to the outer surface of the shell 1, a circulating water pump 8 is installed on the top of the first support plate 7, and an input of the circulating water pump 8 The end is fixedly connected with a liquid extraction hard pipe 9, and the end of the liquid extraction hard pipe 9 away from the circulating water pump 8 passes through the shell 1. The inner side of the shell 1 is fixedly connected with a fixing block 10, and a guide hard pipe 11 is arranged on one side of the fixing block 10. A nozzle 12 is arranged at the bottom of the guide hard pipe 11. The output end of the circulating water pump 8 is fixedly connected with a delivery hard pipe 13, and the end of the delivery hard pipe 13 away from the circulating water pump 8 passes through the shell 1 and is connected with the inside of the guide hard pipe 11. Absorption liquid is arranged on the inner bottom of the shell 1, and a filter plate 14 is fixedly connected inside the shell 1.

[0024] The effect achieved by the entire embodiment 1 is that, by installing one end of the air outlet hard pipe 3 on the pressure relief port of the pressure vessel, when the pressure vessel needs to be relieved, the first pressure relief valve 4 is opened to allow the gas in the pressure vessel to pass through the air outlet hard pipe 3 into the shell 1 in sequence, and at the same time, the coolant in the cooling box 2 can cool the gas in the air outlet hard pipe 3, thereby avoiding damage to the device caused by high-temperature gas. At the same time, the filter plate 14 performs preliminary filtration and impurity removal on the gas entering the shell 1, and then by starting the circulating water pump 8, the liquid extraction hard pipe 9 extracts the absorption liquid in the shell 1, and transports it to the guide hard pipe 11 through the delivery hard pipe 13, and sprays it through the nozzle 12, so that the gas entering the shell 1 contacts with the absorption liquid, and the absorption liquid absorbs the harmful gas in the gas, which facilitates the absorption treatment of the gas and improves the convenience.

[0025] Example 2: Figure 1 - Figure 5As shown, the mixing mechanism 5 includes two first rotating shafts 501, the two first rotating shafts 501 are rotatably connected in the shell 1, one end of the two first rotating shafts 501 is movable through the shell 1, the outer surfaces of the two first rotating shafts 501 are fixedly connected with stirring plates 502, the outer surfaces of the two first rotating shafts 501 are fixedly sleeved with gears 503, the two gears 503 are meshingly connected, the outer surface of the shell 1 is fixedly connected with a second supporting plate 504, the top of the second supporting plate 504 is fixedly connected with a mounting seat 505, the top of the mounting seat 505 is fixedly installed with a first driving motor 506, the output end of the first driving motor 506 is fixedly connected to one of the first rotating shafts 501, The height of the absorption liquid is lower than the height of the first rotating shaft 501. The adsorption mechanism 6 includes a second driving motor 601, which is fixedly installed on the top of the shell 1. The output end of the second driving motor 601 is fixedly connected to the second rotating shaft 602. The bottom end of the second rotating shaft 602 is movable through the shell 1. The outer surface of the second rotating shaft 602 is fixedly connected to the activated carbon adsorption plate 603. The top of the air outlet rigid pipe 3 is fixedly connected to the pressure relief rigid pipe 15, and the pressure relief rigid pipe 15 is provided with a second pressure relief valve 16. The outer surface of one end of the air outlet rigid pipe 3 is fixedly connected to the mounting flange 17, and the air outlet rigid pipe 3 is provided with a one-way valve 18. The top of the shell 1 is fixedly connected to the exhaust rigid pipe 19.

[0026] The effect achieved by the entire embodiment 2 is that, by providing a mixing mechanism 5, the first driving motor 506 is started, so that the first driving motor 506 drives one of the first rotating shafts 501 to rotate, and because the two gears 503 are meshed and connected, the two first rotating shafts 501 drive the stirring plates 502 to rotate, so that the stirring plates 502 bring the gas into the absorption liquid, so that part of the gas contacts the absorption liquid, and the absorption effect of the gas is improved, and then the adsorption mechanism 6 is provided, and the second driving motor 601 is started, so that the second rotating shaft 602 drives the activated carbon adsorption plate 603 to rotate, and the rotating activated carbon adsorption plate 60 3 absorbs harmful gases in the gas, further improving the gas absorption effect, and then when the gas in the pressure vessel does not contain toxic gases, open the second pressure relief valve 16 and close the first pressure relief valve 4, so that the gas in the pressure vessel can be directly discharged to the outside through the gas outlet hard pipe 3 and the pressure relief hard pipe 15. The provided mounting flange 17 is convenient for installing one end of the gas outlet hard pipe 3 on the pressure relief port of the pressure vessel, and then the one-way effect of the one-way valve 18 prevents the gas from flowing back on the gas outlet hard pipe 3, thereby improving the reliability during use. The provided exhaust hard pipe 19 is convenient for discharging the gas after absorption and treatment.

[0027] Working principle: When in use, one end of the air outlet hard pipe 3 is installed on the pressure relief port of the pressure vessel through the provided installation flange 17. When the pressure vessel needs to be depressurized and the gas in the pressure vessel does not contain toxic gas, the second pressure relief valve 16 is opened and the first pressure relief valve 4 is closed, so that the gas in the pressure vessel is directly discharged to the outside through the air outlet hard pipe 3 and the pressure relief hard pipe 15. When the gas in the pressure vessel contains toxic gas, the second pressure relief valve 16 is closed and the first pressure relief valve 4 is opened, so that the gas in the pressure vessel passes through the air outlet hard pipe 3 into the shell 1 in turn. At the same time, the coolant in the cooling box 2 can cool the gas in the air outlet hard pipe 3, avoiding damage to the device caused by high-temperature gas. At the same time, the first drive motor 506 is started, so that the first drive motor 506 drives one of the first rotating shafts 501 to rotate. Since the two gears 503 are meshed and connected, The two first rotating shafts 501 drive the stirring plate 502 to rotate. Since the height of the absorption liquid is lower than the height of the first rotating shaft 501, the stirring plate 502 brings the gas into the absorption liquid, so that part of the gas contacts with the absorption liquid. Then, the filter plate 14 performs preliminary filtration and impurity removal on the gas. Then, by starting the circulating water pump 8 and the second driving motor 601, the liquid extraction hard pipe 9 extracts the absorption liquid in the shell 1, and transports it to the guide hard pipe 11 through the conveying hard pipe 13, and sprays it through the nozzle 12, so that the gas entering the shell 1 is further in contact with the absorption liquid, and the absorption liquid absorbs the harmful gas in the gas. At the same time, the second rotating shaft 602 drives the activated carbon adsorption plate 603 to rotate, and the rotating activated carbon adsorption plate 603 adsorbs the harmful gas in the gas, further improving the absorption treatment effect of the gas. The absorbed gas is finally discharged through the exhaust hard pipe 19.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pressure relief device for a pressure vessel, comprising a shell (1) and a cooling box (2), characterized in that: The cooling box (2) is provided with a cooling liquid, the outer surface of the shell (1) is fixedly connected to an air outlet hard pipe (3), the end of the air outlet hard pipe (3) away from the shell (1) passes through the cooling box (2), the air outlet hard pipe (3) is provided with a first pressure relief valve (4), the shell (1) is provided with a mixing mechanism (5), the shell (1) is provided with an adsorption mechanism (6), the outer surface of the shell (1) is fixedly connected to a first support plate (7), the top of the first support plate (7) is installed with a circulating water pump (8), the input end of the circulating water pump (8) is fixedly connected to a liquid extraction hard pipe (9), the liquid extraction hard pipe (9) One end of the hard pipe (9) away from the circulating water pump (8) passes through the shell (1); a fixed block (10) is fixedly connected to the inner side of the shell (1); a guide hard pipe (11) is provided on one side of the fixed block (10); a nozzle (12) is provided at the bottom of the guide hard pipe (11); an output end of the circulating water pump (8) is fixedly connected to a delivery hard pipe (13); one end of the delivery hard pipe (13) away from the circulating water pump (8) passes through the shell (1) and is connected to the inside of the guide hard pipe (11); an absorption liquid is provided at the inner bottom of the shell (1); and a filter plate (14) is fixedly connected to the inside of the shell (1).

2. A pressure relief device for a pressure vessel according to claim 1, characterized in that: The mixing mechanism (5) comprises two first rotating shafts (501), the two first rotating shafts (501) being rotatably connected to the shell (1), one end of the two first rotating shafts (501) being movably inserted through the shell (1), and the outer surfaces of the two first rotating shafts (501) being fixedly connected to stirring plates (502).

3. A pressure relief device for a pressure vessel according to claim 2, characterized in that: The outer surfaces of the two first rotating shafts (501) are both fixedly sleeved with gears (503), the two gears (503) are meshingly connected, and the outer surface of the housing (1) is fixedly connected with a second support plate (504).

4. A pressure relief device for a pressure vessel according to claim 3, characterized in that: A mounting seat (505) is fixedly connected to the top of the second support plate (504), a first drive motor (506) is fixedly mounted on the top of the mounting seat (505), an output end of the first drive motor (506) is fixedly connected to one of the first rotating shafts (501), and the height of the absorption liquid is lower than the height of the first rotating shaft (501).

5. The pressure relief device for a pressure vessel according to claim 1, characterized in that: The adsorption mechanism (6) comprises a second drive motor (601), the second drive motor (601) is fixedly mounted on the top of the housing (1), the output end of the second drive motor (601) is fixedly connected to a second rotating shaft (602), the bottom end of the second rotating shaft (602) movably passes through the housing (1), and the outer surface of the second rotating shaft (602) is fixedly connected to an activated carbon adsorption plate (603).

6. A pressure relief device for a pressure vessel according to claim 1, characterized in that: The top of the air outlet hard pipe (3) is fixedly connected to a pressure relief hard pipe (15), and a second pressure relief valve (16) is provided on the pressure relief hard pipe (15).

7. A pressure relief device for a pressure vessel according to claim 1, characterized in that: A mounting flange (17) is fixedly connected to the outer surface of one end of the air outlet hard pipe (3), a one-way valve (18) is provided on the air outlet hard pipe (3), and an exhaust hard pipe (19) is fixedly connected to the top of the housing (1).

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