Waste gas treatment equipment for enameled wire production

Abstract

The utility model provides waste gas treatment equipment for enameled wire production, which comprises an extraction valve, connecting pipes are arranged on two sides of the extraction valve, one end of each connecting pipe extends into a water tank and is bent downwards to be immersed under the water surface, a check valve is mounted on each connecting pipe, and an exhaust port is arranged on the water tank and positioned above the water surface; waste gas is introduced into the water tank through the extraction valve and the connecting pipe, soluble substances in the waste gas react through the water tank, the connecting pipe directly bends downwards and extends into the water tank, sufficient contact between the waste gas and water is facilitated, the purification efficiency is improved, in addition, leakage of the waste gas or backward flowing of the water can be effectively prevented through the matched check valve, and the service life is prolonged. And normal operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, and specifically relates to an exhaust gas treatment device for enameled wire production. Background Technique

[0002] Enameled wire is widely used in products such as motors, transformers, household appliances, electronics, communications, and transportation. Currently, China has become the largest country in the production and consumption of enameled wire. A large amount of solvents and diluents containing VOCs are used in the production process of enameled wire. The VOCs in these raw and auxiliary materials are harmful to the environment and need to be treated before being discharged.

[0003] For example, the existing patent CN201821173286.3 discloses an exhaust gas filtration and treatment device for enameled wire processing, including a housing and a base. A first filtration chamber is fixedly installed at the bottom end inside the housing. An initial filtration layer, an activated carbon filtration layer, a HEPA filtration layer, and a negative oxygen ion purification layer are sequentially installed inside the first filtration chamber from top to bottom. An electrostatic precipitator is fixedly installed inside the housing on one side of the first filtration chamber, and the bottom of one side of the electrostatic precipitation chamber is communicated with the first filtration chamber through a first air duct. A gas guide chamber extending out of the housing is fixedly installed at the top of the electrostatic precipitation chamber. A support plate is fixedly installed inside the housing above the first filtration chamber. However, the above technical solution is similar to the existing enameled wire exhaust gas treatment technology. Its operation is to add a corresponding exhaust gas treatment device to each enameled wire, and use pipelines such as gas transmission pipes to transport the exhaust gas generated in the enameled wire oven to their respective corresponding exhaust gas treatment devices, and then discharge the exhaust gas after treatment. This operation method has high energy consumption and large floor space. Content of the Utility Model

[0004] Aiming at the deficiencies existing in the above-mentioned prior art, the purpose of the present utility model is to provide an exhaust gas treatment device for enameled wire production.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: An exhaust gas treatment device for enameled wire production, including: an air extraction valve, with connecting pipes provided on both sides of the air extraction valve. One end of the connecting pipe extends into the water tank and bends downward to be immersed below the water surface. A check valve is installed on the connecting pipe, and an exhaust port is provided on the water tank and above the water surface.

[0006] Further, the end of the connecting pipe extending into the water tank is bent downward in a converging shape.

[0007] Further, the horizontal extension plane of the connecting pipe ≤ the water surface in the water tank < the horizontal extension plane of the exhaust port.

[0008] Further, a drain port is provided on the water tank and between the horizontal heights of the connecting pipe and the exhaust port, and a drainage pipe is sleeved at the drain port.

[0009] As a preferred embodiment of the present application, a water pump is provided on the connecting pipe near the water tank side. The water pump is connected to a drainage pipe for pumping the water overflowing from the water tank through the drainage pipe, and flows out from the other end of the water pump at a sprinkler head for preliminarily cooling the waste gas. The sprinkler head is arranged on the connecting pipe and extends into the connecting pipe.

[0010] As a preferred embodiment of the present application, a first water suction pump is provided on the top of the connecting pipe inlet near the water tank. The first water suction pump is connected to a drainage pipe for pumping the water overflowing from the water tank through the drainage pipe, and then extends from the other end of the first water suction pump to flow out at a spray nozzle on the water tank. The spray nozzle is located at the upper end of the connection between the connecting pipe and the water tank.

[0011] As a preferred embodiment of the present application, a recovery tank is provided at the end of the drainage pipe far from the water tank. The recovery tank is connected to a second water suction pump through a water pipe provided. The second water suction pump is used for pumping the water in the recovery tank, and flows out from the other end of the second water suction pump at a liquid spray head for preliminarily cooling the waste gas. The liquid spray head is arranged on the connecting pipe and extends into the connecting pipe; a liquid filling port is also provided on the water tank and above the connecting pipe.

[0012] Furthermore, a three-way pipe is provided at the liquid filling port of the water tank. One end of the three-way pipe is externally connected to a liquid injection pipe, and the other end is connected to the water pipe provided on the recovery tank.

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

[0014] In the present application, the waste gas is introduced into the water tank through an air extraction valve and a connecting pipe to react the soluble substances in the waste gas through the water tank. Moreover, the connecting pipe in the present application directly bends downward and extends into the water tank, which is beneficial for the waste gas to fully contact with water and improve the purification efficiency. In addition, with the cooperation of the provided check valve, it can effectively prevent the leakage of waste gas or the backflow of water, ensuring the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0016] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the main structure of the second embodiment of the present utility model;

[0018] Figure 3This is the main structural schematic diagram of the third embodiment of the present utility model;

[0019] Figure 4 This is the main structural schematic diagram of the fourth embodiment of the present utility model.

[0020] In the figure: 1, water tank; 2, connecting pipe; 3, air extraction valve; 4, check valve; 11, exhaust port; 12, drain port; 13, drainage pipe; 5, water pump; 6, spray head; 7, water suction pump I; 8, spray port; 9, recovery tank; 10, water suction pump II; 101, liquid spraying head; 102, liquid filling port; 103, three-way pipe; 104, liquid injection pipe. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Embodiment 1:

[0023] An exhaust gas treatment device for enameled wire production includes: an air extraction valve 3. Both sides of the air extraction valve 3 are provided with connecting pipes 2. One end of any one of the connecting pipes 2 away from the air extraction valve 3 extends into the water tank 1 and bends downward to be immersed below the water surface to ensure that the gas fully reacts and contacts with water. A check valve 4 is installed on the connecting pipe 2. In actual installation, this structure can be located on the connecting pipe 2 between the air extraction valve 3 and the water tank 1 to ensure that the gas is always effectively conveyed towards the water tank 1 and prevent the water in the water tank 1 from flowing back. An exhaust port 11 is provided on the water tank 1 and above the water surface. The exhaust port 11 is used to discharge the gas treated by water treatment from the water tank 1.

[0024] In order to ensure the effective conveyance of the gas into the water, one end of the connecting pipe 2 extending into the water tank 1 is bent downward in a converging shape, and this setting increases the air pressure and wind speed at the converging-shaped bent connecting pipe 2.

[0025] In order to ensure the effective operation of this application, the height is thus limited. The horizontal extension surface of the connecting pipe 2 ≤ the water surface in the water tank 1 < the horizontal extension surface of the exhaust port 11.

[0026] Since, in order to ensure the convenience of subsequent water replacement, a drain port 12 is provided on the water tank 1 and at the horizontal height between the connecting pipe 2 and the exhaust port 11. A drainage pipe 13 is sleeved at the drain port 12. In actual operation, a switch can be provided at the drainage pipe 13. In addition, in order to ensure the stability of the water temperature in the box body, among them, through flow and water replacement, to ensure that the gas can always effectively react with water; in actual operation of this embodiment, the diameter of the drain port 12 < 1 / 3 of the diameter of the outlet immersed in the water surface of the water tank 1.

[0027] Example Two:

[0028] On the basis of the above technical solution, a water pump 5 is provided on the connecting pipe 2 near the water tank 1. The water pump 5 is connected to a drainage pipe 13 for pumping the water overflowing from the water tank 1 through the drainage pipe 13, and flows out from the other end of the water pump 5 at a spray head 6 for preliminarily cooling the waste gas. The spray head 6 is arranged on the connecting pipe 2 and extends into the connecting pipe 2, thereby forming a stable device integrating internal circulation cooling and reaction. This is the case of this embodiment.

[0029] Example Three:

[0030] On the basis of Example One, the difference from Example Two is as follows:

[0031] A first water suction pump 7 is provided on the top of the connecting pipe 2 near the water tank 1 and at the entrance of the connecting pipe 2. The first water suction pump 7 is connected to a drainage pipe 13 for pumping the water overflowing from the water tank 1 through the drainage pipe 13, and then the drainage pipe 13 connected to the other end of the first water suction pump 7 extends to the spray opening 8 on the water tank 1 and flows out. The spray opening 8 is located at the upper end of the connection between the connecting pipe 2 and the water tank 1. This structure mainly cools the outer wall of the connecting pipe 2 to achieve preliminary cooling of the waste gas and preliminary liquefaction of the waste gas.

[0032] Example Four:

[0033] On the basis of Example One, the differences from Examples Two and Three are as follows:

[0034] A recovery tank 9 is provided at one end of the drainage pipe 13 far from the water tank 1. The recovery tank 9 is connected to a second water suction pump 10 through a water pipe. The second water suction pump 10 is used to pump the water in the recovery tank 9, and flows out from the other end of the second water suction pump 10 at a liquid spray head 101 for preliminarily cooling the waste gas. The liquid spray head 101 is arranged on the connecting pipe 2 and extends into the connecting pipe 2; a liquid filling port 102 is also provided on the water tank 1 and above the connecting pipe 2. In this embodiment, the provided water tank 1 stores the overflowing liquid first to cope with the situation where the overflow water flow rate is greater than the water flow rate at the liquid spray head 101. In addition, during the initial operation, if the water level in the water tank 1 is lower than the drain opening 12, the waste gas after water treatment may be subjected to secondary adsorption and filtration treatment by the second water suction pump 10.

[0035] A three-way pipe 103 is provided at the liquid filling port 102 of the water tank 1. One end of the three-way pipe 103 is externally connected to a liquid injection pipe 104, and the other end is connected to the water pipe provided on the recovery tank 9 to ensure that the water in the water tank 1 can always react with the waste gas and avoid absorption saturation.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An exhaust gas treatment device for enameled wire production, characterized in that: include: An air extraction valve (3), wherein connecting pipes (2) are provided on both sides of the air extraction valve (3), one end of the connecting pipe (2) extends into the water tank (1) and bends downward to be immersed below the water surface, a check valve (4) is installed on the connecting pipe (2), and an exhaust port (11) is provided on the water tank (1) and above the water surface.

2. The waste gas treatment equipment for enameled wire production according to claim 1, characterized in that: The connecting pipe (2) extends into the water tank (1) and has one end bent downward in a gathered shape.

3. The waste gas treatment equipment for enameled wire production according to claim 2, characterized in that: The horizontal extension plane of the connecting pipe (2) ≤ the water surface in the water tank (1) < the horizontal extension plane of the exhaust port (11).

4. The waste gas treatment equipment for enameled wire production according to claim 3, characterized in that: A drainage port (12) is provided on the water tank (1) and is located between the horizontal heights of the connecting pipe (2) and the exhaust port (11), and a drainage pipe (13) is sleeved on the drainage port (12).

5. The waste gas treatment equipment for enameled wire production according to claim 4, characterized in that: A water pump (5) is provided on the connecting pipe (2) near the side of the water tank (1). The water pump (5) is connected to the drainage pipe (13) to extract water overflowing from the water tank (1) through the drainage pipe (13), and the water flows out from a spray head (6) for preliminary cooling of the exhaust gas, which is sleeved on the other end of the water pump (5). The spray head (6) is provided on the connecting pipe (2) and extends into the connecting pipe (2).

6. The waste gas treatment equipment for enameled wire production according to claim 4, characterized in that: A water suction pump (7) is provided near the water tank (1) and at the top of the inlet of the connecting pipe (2). The water suction pump (7) is connected to the drainage pipe (13) to extract water overflowing from the water tank (1) through the drainage pipe (13), and then extends from the other end of the water suction pump (7) to the spray port (8) on the water tank (1) to flow out. The spray port (8) is located at the upper end portion of the connecting pipe (2) connected to the water tank (1).

7. The waste gas treatment equipment for enameled wire production according to claim 4, characterized in that: A recovery box (9) is provided at one end of the drainage pipe (13) away from the water tank (1); the recovery box (9) is connected to a second water suction pump (10) via a provided water pipe; the second water suction pump (10) is used to extract water from the recovery box (9), and the water flows out from a liquid spray head (101) for preliminary cooling of the exhaust gas, which is sleeved on the other end of the second water suction pump (10); the liquid spray head (101) is provided on the connecting pipe (2) and extends into the connecting pipe (2); a liquid filling port (102) is also provided on the water tank (1) and above the connecting pipe (2).

8. The waste gas treatment equipment for enameled wire production according to claim 7, characterized in that: A three-way pipe (103) is provided at the liquid filling port (102) of the water tank (1), one end of the three-way pipe (103) is externally connected to a liquid filling pipe (104), and the other end is connected to a water pipe provided on the recovery tank (9).

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