Auxiliary drainage device for improving efficiency of demister

Abstract

The utility model discloses an auxiliary drainage device for improving the efficiency of a demister, which relates to the technical field of demisters and comprises a tank body, a top cover fixedly connected to the top of the tank body, a discharge pipe fixedly connected to the bottom of the tank body and an electric control valve fixedly mounted in the discharge pipe. The first control assembly and the second control assembly are arranged in the tank body; the second control assembly comprises a hemisphere fixedly connected to the top of the limiting plate, a spring groove formed in the bottom of the limiting plate, and a second control switch fixedly installed on the inner side wall of the spring groove and used for controlling the electric control valve. According to the auxiliary drainage device capable of improving the efficiency of the demister, the electric control valve is turned down through the second control switch, and the situation that the demisting effect is reduced due to the fact that airflow directly passes through and cannot be in full contact with liquid due to the fact that the liquid level is too low and an inlet of the air inlet pipe cannot be covered is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of demisters, in particular to an auxiliary drainage device for improving the efficiency of demisters. Background Art

[0002] Demisters usually refer to equipment used to remove droplets or solid particles from gases generated in chemical plants. Chemical plants often produce gases containing fine droplets or solid particles, which sometimes affect the normal operation of the equipment and the safety of the environment. Therefore, demisters are needed to remove these droplets or particles to maintain the efficient operation of the equipment and the safety of the environment. Common demisters include centrifugal demisters, filter demisters, etc. Centrifugal demisters separate droplets or particles from gases through centrifugal force. Filter demisters, on the other hand, use filter media (such as filter paper or filter screen) to intercept droplets or particles.

[0003] The above-mentioned demisters will cause the liquid to be temporarily stored in the device. When the liquid level in the demister is too high, the liquid will accumulate in the pipe or even flow back into the demister, affecting the normal operation and separation effect of the demister. When the liquid level is too low and cannot cover the inlet or nozzle of the demister, the airflow may pass directly without sufficient contact with the liquid, and the impurities in the gas cannot be removed, which may easily cause the filter to be blocked. Utility Model Content

[0004] The main purpose of the utility model is to provide an auxiliary drainage device for improving the efficiency of the demister to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An auxiliary drainage device for improving the efficiency of a defogger comprises a tank body, a top cover fixedly connected to the top of the tank body, a discharge pipe fixedly connected to the bottom of the tank body, and an electric control valve fixedly installed inside the discharge pipe, wherein a defogger assembly is fixedly connected inside the tank body, and further comprises a first control assembly and a second control assembly arranged inside the tank body;

[0007] The first control assembly includes a limit rod fixedly connected to the bottom wall of the tank body, a limit plate fixedly connected to the top of the limit rod, and a buoyancy ball sleeved on the outer surface of the limit rod for detecting the liquid level inside the tank body;

[0008] The second control assembly includes a hemispherical body fixedly connected to the top of the limiting plate, a spring groove opened at the bottom of the limiting plate, and a second control switch fixedly installed on the inner side wall of the spring groove for controlling the electric control valve.

[0009] Preferably, the demisting assembly includes an air inlet pipe and an air pump fixedly connected to the outer wall of the tank body, a filter fixedly installed inside the tank body, and a one-way valve installed inside the air inlet pipe.

[0010] Preferably, the air inlet of the vacuum pump is connected to the interior of the tank body through an inlet pipe, and the air outlet of the vacuum pump is connected to the interior of the tank body through an outlet pipe. The top opening of the outlet pipe faces the filter, and the outlet pipe is located above the discharge pipe.

[0011] Preferably, the first control assembly further comprises a mounting groove provided on the outer side wall of the limiting rod, a connecting spring fixedly connected to the bottom of the mounting groove, and a movable block fixedly connected to the end surface of the connecting spring.

[0012] Preferably, the first control assembly further comprises a first control switch fixedly connected to the inner side wall of the mounting groove for controlling the electric control valve, and a special-shaped block fixedly connected to the outer surface of the buoyancy ball 503 .

[0013] Preferably, the second control assembly further comprises a return spring fixedly connected to the top wall of the spring slot, and an I-shaped block fixedly connected to the end surface of the return spring.

[0014] Preferably, the second control assembly further comprises a connecting rope fixedly connected to the bottom of the I-shaped block;

[0015] The top of the buoyancy ball is fixedly connected to the end of the connecting rope.

[0016] The utility model has the following beneficial effects:

[0017] 1. When the liquid level inside the tank body continues to rise, it will drive the buoyancy ball to move upward until the inner wall of the buoyancy ball abuts against the movable block, pressing the movable block into the inside of the installation groove. At this time, the movable block will abut against the first control switch, so that the first control switch will open the electric control valve to discharge the liquid inside the tank body, prevent the liquid from entering the inlet pipe, and ensure the demisting efficiency.

[0018] 2. When the discharge pipe is opened, the liquid level will continue to drop, driving the buoyancy ball downward, and driving the I-block downward through the connecting rope until the upper parallel plate of the I-block presses against the second control switch, closing the electric control valve to prevent the liquid level from being too low and failing to cover the entrance of the air inlet pipe, causing the air flow to pass directly without sufficient contact with the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the limit rod of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 4 This is a schematic diagram of the internal structure of the limit plate of the utility model;

[0023] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 6 This is a schematic diagram of the connection structure between the buoyancy ball and the conical block of the utility model.

[0025] In the figure: 1. tank body; 101. air inlet pipe; 102. vacuum pump; 103. filter screen; 104. one-way valve; 2. top cover; 3. discharge pipe; 4. electric control valve; 501. limit rod; 502. limit plate; 503. buoyancy ball; 504. connecting spring; 505. movable block; 506. first control switch; 507. conical block; 601. hemisphere; 602. return spring; 603. I-shaped block; 604. second control switch; 605. connecting rope. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] Embodiment 1: Figure 1-Figure 6 As shown, an auxiliary drainage device for improving the efficiency of a defogger includes a tank body 1, a top cover 2 fixedly connected to the top of the tank body 1, a discharge pipe 3 fixedly connected to the bottom of the tank body 1, and an electric control valve 4 fixedly installed inside the discharge pipe 3. A defogger assembly is fixedly connected inside the tank body 1, and also includes a first control assembly and a second control assembly arranged inside the tank body 1;

[0028] The first control assembly includes a limit rod 501 fixedly connected to the inner bottom wall of the tank body 1, a limit plate 502 fixedly connected to the top of the limit rod 501, and a buoyancy ball 503 sleeved on the outer surface of the limit rod 501 for detecting the liquid level inside the tank body 1;

[0029] The second control component includes a hemisphere 601 fixedly connected to the top of the limit plate 502, a spring groove opened at the bottom of the limit plate 502, and a second control switch 604 fixedly installed on the inner wall of the spring groove for controlling the electric control valve 4, wherein the hemisphere 601 is used to reduce the residual liquid on the limit plate 502.

[0030] The demisting assembly includes an air inlet pipe 101 and an air pump 102 fixedly connected to the outer wall of the tank body 1 , a filter 103 fixedly installed inside the tank body 1 , and a one-way valve 104 installed inside the air inlet pipe 101 .

[0031] The air inlet of the vacuum pump 102 is connected to the interior of the tank body 1 through an inlet pipe, and the air outlet of the vacuum pump 102 is connected to the interior of the tank body 1 through an outlet pipe. The top opening of the outlet pipe faces the filter 103, and the outlet pipe is located above the discharge pipe 3. The vacuum pump 102 is used to accelerate the flow rate of air inside the tank body 1, and the gas is allowed to hit the filter 103, thereby removing moisture from the gas and improving the defog efficiency.

[0032] The first control component also includes a mounting groove opened on the outer wall of the limiting rod 501, a connecting spring 504 fixedly connected to the bottom of the mounting groove, and a movable block 505 fixedly connected to the end face of the connecting spring 504, wherein the movable block 505 includes a cylinder connected to the connecting spring 504, and a hemispherical protrusion fixedly connected to the top of the cylinder, wherein the hemispherical protrusion protrudes out of the mounting groove under the action of the connecting spring 504, wherein the outer diameter of the cylinder is equal to the inner diameter of the spring groove.

[0033] The first control component also includes a first control switch 506 fixedly connected to the inner wall of the installation groove for controlling the electric control valve 4, and a special-shaped block 507 fixedly connected to the outer surface of the buoyancy ball 503, wherein the conical block 507 is used to increase the contact area between the buoyancy ball 503 and the liquid surface, thereby increasing the buoyancy of the buoyancy ball 503, and the first control switch 506 is used to control the opening of the electric control valve 4 to accelerate the discharge rate of the discharge pipe 3.

[0034] In the initial state, the liquid level inside the tank body 1 will be higher than the entrance of the air inlet pipe 101, and the gas will be transported to the inside of the tank body 1 through the air inlet pipe 101. At this time, the one-way valve 104 arranged inside the air inlet pipe 101 can prevent the liquid from flowing back. When the gas enters the liquid, the solid impurities in the gas will be adsorbed by the liquid, and the gas will enter the inside of the tank body 1. At this time, the air pump 102 will drive the gas to hit the filter 103, thereby intercepting the moisture in the gas, and the moisture will drip on the liquid surface due to gravity;

[0035] If the defogger is continuously running, the liquid level inside the tank body 1 will continue to rise, thereby driving the buoyancy ball 503 to move upward, until the inner wall of the buoyancy ball 503 abuts against the movable block 505, thereby pressing the movable block 505 into the installation groove. At this time, the movable block 505 abuts against the first control switch 506, thereby making the first control switch 506 open the electric control valve 4, thereby discharging the liquid inside the tank body 1, preventing the liquid from entering the inlet pipe, and ensuring the defogger efficiency.

[0036] Embodiment 2: Figure 1-Figure 6As shown, an auxiliary drainage device for improving the efficiency of a defogger includes a tank body 1, a top cover 2 fixedly connected to the top of the tank body 1, a discharge pipe 3 fixedly connected to the bottom of the tank body 1, and an electric control valve 4 fixedly installed inside the discharge pipe 3. A defogger assembly is fixedly connected inside the tank body 1, and also includes a first control assembly and a second control assembly arranged inside the tank body 1;

[0037] The first control assembly includes a limit rod 501 fixedly connected to the inner bottom wall of the tank body 1, a limit plate 502 fixedly connected to the top of the limit rod 501, and a buoyancy ball 503 sleeved on the outer surface of the limit rod 501 for detecting the liquid level inside the tank body 1;

[0038] The second control component includes a hemisphere 601 fixedly connected to the top of the limit plate 502, a spring groove opened at the bottom of the limit plate 502, and a second control switch 604 fixedly installed on the inner wall of the spring groove for controlling the electric control valve 4, wherein the hemisphere 601 is used to reduce the residual liquid on the limit plate 502.

[0039] The second control component also includes a return spring 602 fixedly connected to the top wall of the spring groove, and an I-shaped block 603 fixedly connected to the end face of the return spring 602, wherein the second control switch 604 is located between the two parallel plates of the I-shaped block 603, and the lowermost parallel plate is used to seal the spring groove to reduce the contact between the second control switch 604 and water vapor, wherein the second control switch 604 is used to control the closing degree of the electric control valve 4.

[0040] The second control assembly also includes a connecting rope 605 fixedly connected to the bottom of the I-shaped block 603;

[0041] The top of the buoyancy ball 503 is fixedly connected to the end of the connecting rope 605 .

[0042] When the discharge pipe 3 is opened, the liquid level will continue to drop, thereby driving the buoyancy ball 503 downward. At this time, the I-block 603 will be driven downward by the connecting rope 605 until the upper parallel plate of the I-block 603 abuts against the second control switch 604, thereby closing the electric control valve 4 to prevent the liquid level from being too low and failing to cover the entrance of the air inlet pipe 101, causing the airflow to pass directly without sufficient contact with the liquid, thereby reducing the defogger effect.

Claims

1. An auxiliary drainage device for improving the efficiency of a defogger, comprising a tank body (1), a top cover (2) fixedly connected to the top of the tank body (1), a discharge pipe (3) fixedly connected to the bottom of the tank body (1), and an electric control valve (4) fixedly installed inside the discharge pipe (3), wherein a defogger assembly is fixedly connected inside the tank body (1), characterized in that: It also includes a first control component and a second control component which are arranged inside the tank body (1); The first control component comprises a limit rod (501) fixedly connected to the inner bottom wall of the tank body (1), a limit plate (502) fixedly connected to the top of the limit rod (501), and a buoyancy ball (503) sleeved on the outer surface of the limit rod (501) for detecting the liquid level inside the tank body (1); The second control component comprises a hemispherical body (601) fixedly connected to the top of the limit plate (502), a spring groove opened at the bottom of the limit plate (502), and a second control switch (604) fixedly installed on the inner wall of the spring groove for controlling the electric control valve (4).

2. The auxiliary drainage device for improving the efficiency of the demister according to claim 1, characterized in that: The demisting assembly comprises an air intake pipe (101) and an air pump (102) fixedly connected to the outer wall of the tank body (1), a filter screen (103) fixedly installed inside the tank body (1), and a one-way valve (104) installed inside the air intake pipe (101).

3. The auxiliary drainage device for improving the efficiency of the demister according to claim 2, characterized in that: The air inlet of the vacuum pump (102) is connected to the interior of the tank body (1) through an inlet pipe, and the air outlet of the vacuum pump (102) is connected to the interior of the tank body (1) through an outlet pipe. The top opening of the outlet pipe faces the filter screen (103), and the outlet pipe is located above the discharge pipe (3).

4. The auxiliary drainage device for improving the efficiency of the demister according to claim 3, characterized in that: The first control assembly further comprises a mounting groove formed on the outer side wall of the limiting rod (501), a connecting spring (504) fixedly connected to the bottom of the mounting groove, and a movable block (505) fixedly connected to the end surface of the connecting spring (504).

5. The auxiliary drainage device for improving the efficiency of the demister according to claim 4, characterized in that: The first control assembly further comprises a first control switch (506) fixedly connected to the inner wall of the mounting groove for controlling the electric control valve (4), and a special-shaped block (507) fixedly connected to the outer surface of the buoyancy ball (503).

6. The auxiliary drainage device for improving the efficiency of the demister according to claim 5, characterized in that: The second control assembly also includes a return spring (602) fixedly connected to the top wall of the spring slot, and an I-shaped block (603) fixedly connected to the end surface of the return spring (602).

7. The auxiliary drainage device for improving the efficiency of the demister according to claim 6, characterized in that: The second control assembly also includes a connecting rope (605) fixedly connected to the bottom of the I-shaped block (603); The top of the buoyancy ball (503) is fixedly connected to the end of the connecting rope (605).

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