A volatile solvent tail gas collection tank for a vacuum pump and its vacuum pump assembly.

Abstract

This utility model discloses a volatile solvent exhaust gas collection tank for a vacuum pump and its vacuum pump assembly. The key technical features include a tank body with an inlet and an outlet. The outlet is located at the end of the tank body furthest from the inlet. A cooling assembly is provided on the tank body, including a first cooling pipe located inside the tank body. The exhaust gas entering the tank body is cooled through the first cooling pipe, causing it to condense into liquid and be discharged through a drain outlet. The outlet is located at the end of the tank body furthest from the inlet, allowing the volatile solvent to flow through most of the tank body, thus improving the capture rate of the volatile solvent. The outlet achieves pressure balance inside and outside the tank body. The entire tank system is small in size and can be mounted on a frame together with the vacuum pump for easy movement.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump exhaust gas treatment technology, and more specifically to a vacuum pump volatile solvent exhaust gas collection tank and its vacuum pump components. Background Technology

[0002] During operation, vacuum pumps draw in a certain amount of process gas. The waste gas mainly consists of the gas components used in the working system and contains organic gases. If discharged directly, it will pollute the environment. Conventional waste gas treatment methods include condensation.

[0003] In the existing technology, connecting the exhaust port of the vacuum pump to the complete processing system is rather inconvenient for small, highly mobile vacuum pumps. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a vacuum pump volatile solvent tail gas collection tank and its vacuum pump assembly, which is suitable for small and highly mobile vacuum pumps.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vacuum pump volatile solvent tail gas collection tank, comprising a tank body, the tank body including an air inlet and an exhaust outlet, the exhaust outlet being located at one end of the tank body away from the air inlet, a cooling assembly being provided on the tank body, the cooling assembly including a first cooling pipe located inside the tank body, both ends of the first cooling pipe extending out of the tank body, and a drain outlet being provided on the tank body.

[0006] As a further improvement of this utility model, at least a portion of the first cooling pipe located inside the tank is spiral-shaped.

[0007] As a further improvement of this utility model, the cooling assembly includes a second cooling pipe, which is wound around the outer surface of the tank.

[0008] As a further improvement of this utility model, the inlet of the first cooling pipe is connected to the inlet of the second cooling pipe and / or the outlet of the first cooling pipe is connected to the outlet of the second cooling pipe.

[0009] As a further improvement of this utility model, an arc-shaped pipe is connected to the exhaust port, and the arc-shaped pipe extends upward.

[0010] As a further improvement of this utility model, a level gauge is provided at the end of the tank.

[0011] As a further improvement of this utility model, a liquid level sensor is provided on the tank body, and a solenoid valve is provided at the drain outlet. The liquid level sensor and the solenoid valve are electrically connected.

[0012] As a further improvement of this utility model, a ball valve is connected to the end of the solenoid valve that is away from the tank body.

[0013] As a further improvement of this utility model, the tank includes a barrel body and a cap detachably connected to one end of the barrel body, wherein the cap body and the barrel body are sealed together.

[0014] A vacuum pump assembly includes a vacuum pump and a vacuum pump volatile solvent exhaust gas collection tank as described above, wherein the exhaust port of the vacuum pump is connected to the collection tank.

[0015] The beneficial effects of this utility model are as follows: In this utility model, the exhaust gas entering the tank is cooled by the first cooling pipe, causing it to condense into liquid and be discharged through the drain outlet, which can perform preliminary treatment of the exhaust gas; the gas inlet is located at the end of the tank away from the gas inlet, so that the volatile solvent will flow through most of the tank, improving the capture rate of volatile solvent; the gas pressure balance inside and outside the tank is achieved through the exhaust outlet, and the entire tank system is small in size and can be placed on a frame together with the vacuum pump for joint movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model connected to a vacuum pump;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the first cooling pipe in this utility model.

[0020] Reference numerals: 1. Tank body; 11. Air inlet; 12. Exhaust outlet; 13. Drain outlet; 14. Level gauge; 15. Level sensor; 16. Solenoid valve; 17. Ball valve; 18. Barrel body; 19. Cover; 2. Cooling assembly; 21. First cooling pipe; 22. Second cooling pipe; 3. Arc-shaped pipe; 4. Vacuum pump. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Reference Figures 1 to 4As shown, a vacuum pump volatile solvent tail gas collection tank of this embodiment includes a tank body 1. The tank body 1 includes an air inlet 11 and an exhaust port 12. The air inlet 11 is located at the top of the tank body 1 to facilitate communication with the exhaust port of the vacuum pump 4.

[0023] The exhaust port 12 is located at the end of the tank body 1 away from the air inlet 11, so that the volatile solvent will flow through most of the tank body 1, thereby improving the capture rate of the volatile solvent.

[0024] The air pressure balance inside and outside the tank 1 is achieved through the exhaust port 12;

[0025] A cooling assembly 2 is provided on the tank body 1. Preferably, the coolant can be water. The cooling assembly 2 includes a first cooling pipe 21 located inside the tank body 1. Both ends of the first cooling pipe 21 extend out of the tank body 1. Preferably, one end of the first cooling pipe 21 can be connected to a circulating water pump, and the other end of the first cooling pipe 21 can be connected to a water tank. A water pipe is connected between the water tank and the water pump so that the water can circulate in the first cooling pipe 21.

[0026] Reference Figure 3 As shown, preferably, both ends of the first cooling pipe 21 can extend from the same end of the tank body 1, that is, the inlet and outlet of the first cooling pipe 21 both extend from one end of the tank body 1; this allows the first cooling pipe 21 to enter from the front end of the tank body 1 and extend to the vicinity of the rear end of the tank body 1, and the outlet of the first cooling pipe 21 to extend from the rear end to the front end of the tank body 1, increasing the length of the first cooling pipe 21 within the tank body 1, thereby improving cooling efficiency; achieving preliminary treatment of exhaust gas; a further exhaust gas treatment system can be connected at the exhaust port 12; the entire tank body 1 system is relatively small in size and can be placed on a frame together with the vacuum pump 4 for joint movement.

[0027] Alternatively, a cooler can be connected to the water pipe to improve cooling efficiency.

[0028] The tank body 1 is equipped with a drain outlet 13, which can drain the liquid formed after cooling.

[0029] At least a portion of the first cooling pipe 21 located inside the tank 1 is spiral-shaped. The spiral arrangement can increase the length of the first cooling pipe 21 inside the tank 1, thereby increasing the contact area with the volatile solvent and improving the capture rate.

[0030] Preferably, the cooling assembly 2 includes a second cooling pipe 22, which is wound around the outer surface of the tank 1. A set of cold air pipes is also provided on the outer surface of the tank 1. The first cooling pipe 21 and the second cooling pipe 22 cooperate to improve the cooling efficiency.

[0031] The second cooling pipe 22 cools the outer surface of the tank 1, so that the volatile solvent can also be cooled when it comes into contact with the inner wall of the tank 1, thereby increasing the cooling area for the volatile solvent.

[0032] The inlet of the first cooling pipe 21 is connected to the inlet of the second cooling pipe 22 and / or the outlet of the first cooling pipe 21 is connected to the outlet of the second cooling pipe 22; when the inlet of the first cooling pipe 21 is connected to the inlet of the second cooling pipe 22, water can be supplied to the first cooling pipe 21 and the second cooling pipe 22 through a water tank and a circulating water pump.

[0033] When the outlet of the first cooling pipe 21 is connected to the outlet of the second cooling pipe 22, the water after passing through the tank 1 can be discharged into the water tank together.

[0034] An arc-shaped pipe 3 is connected to the vent 12. The arc-shaped pipe 3 extends upward to prevent liquid in the tank 1 from entering the arc-shaped pipe 3, thereby preventing liquid from flowing out of the vent 12.

[0035] The top of the arc-shaped tube 3 is higher than the top of the level gauge 14.

[0036] A level gauge 14 is provided at the end of the tank body 1. The two ends of the level gauge 14 are connected to the inside of the tank body 1. Its exterior includes a glass tube, which can display the liquid level inside the tank body 1. Workers can determine whether it is necessary to discharge the liquid through the drain outlet 13 based on the liquid level of the level gauge 14.

[0037] Reference Figure 1 , Figure 2 and Figure 3 As shown, a liquid level sensor 15 is installed on the tank body 1, and a solenoid valve 16 is installed at the drain outlet 13. The liquid level sensor 15 and the solenoid valve 16 are electrically connected. Through the cooperation of the solenoid valve 16 and the liquid level sensor 15, when the liquid level in the tank body 1 reaches the alarm position of the liquid level sensor 15, the solenoid valve 16 opens to discharge the liquid. At this time, the ball valve 17 is normally open, and there is no need for manual discharge of liquid.

[0038] The end of the solenoid valve 16 away from the tank body 1 is connected to a ball valve 17, which can ensure the safety and flexibility of the system. The flow rate of the liquid can be controlled by the ball valve 17.

[0039] The tank body 1 includes a barrel body 18 and a cap 19 detachably connected to one end of the barrel body 18. The cap 19 and the barrel body 18 are sealed together. The cap 19 and the barrel body 18 are detachably connected by bolts and nuts, and a sealing ring is added.

[0040] Drain outlet 13, vent outlet 12, level gauge 14, etc. are provided at one end of the barrel 18 away from the cover 19. Both ends of the first cooling pipe 21 extend from the cover 19. There are two holes on the cover 19, and at least one sealing ring is provided between the hole and the first cooling pipe 21.

[0041] A vacuum pump assembly includes a vacuum pump 4 and a vacuum pump volatile solvent tail gas collection tank as described above, wherein the exhaust port of the vacuum pump 4 is connected to the collection tank.

[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A vacuum pump volatile solvent tail gas collection tank, characterized in that: The device includes a tank (1), which includes an air inlet (11) and an exhaust outlet (12). The exhaust outlet (12) is located at one end of the tank (1) away from the air inlet (11). A cooling assembly (2) is provided on the tank (1). The cooling assembly (2) includes a first cooling pipe (21) located inside the tank (1). Both ends of the first cooling pipe (21) extend out of the tank (1). A drain outlet (13) is provided on the tank (1).

2. The vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: At least a portion of the first cooling pipe (21) located within the tank (1) is spiral-shaped.

3. The vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: The cooling assembly (2) includes a second cooling pipe (22) which is wound around the outer surface of the tank (1).

4. A vacuum pump volatile solvent tail gas collection tank according to claim 3, characterized in that: The inlet of the first cooling pipe (21) is connected to the inlet of the second cooling pipe (22) and / or the outlet of the first cooling pipe (21) is connected to the outlet of the second cooling pipe (22).

5. A vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: An arc-shaped pipe (3) is connected to the exhaust port (12), and the arc-shaped pipe (3) extends upward.

6. The vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: A level gauge (14) is provided at the end of the tank (1).

7. A vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: A liquid level sensor (15) is provided on the tank (1), and a solenoid valve (16) is provided at the drain outlet (13). The liquid level sensor (15) and the solenoid valve (16) are electrically connected.

8. A vacuum pump volatile solvent tail gas collection tank according to claim 7, characterized in that: A ball valve (17) is connected to the end of the solenoid valve (16) that is away from the tank body (1).

9. A vacuum pump volatile solvent tail gas collection tank according to claim 1, characterized in that: The tank (1) includes a barrel (18) and a cap (19) detachably connected to one end of the barrel (18), wherein the cap (19) and the barrel (18) are sealed together.

10. A vacuum pump assembly, characterized in that: It includes a vacuum pump (4) and a vacuum pump volatile solvent tail gas collection tank according to any one of claims 1 to 9, wherein the exhaust port of the vacuum pump (4) is connected to the collection tank.

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