A vacuum pump dust pretreatment tank

Abstract

This utility model relates to the field of vacuum pump pretreatment technology, and discloses a vacuum pump dust pretreatment tank, including a tank body containing liquid. The tank body is provided with an air inlet pipe and an air outlet pipe. One end of the air inlet pipe is connected to the outside, and the other end extends below the liquid surface. The air outlet pipe is located above the liquid surface. The tank body is provided with a funnel and a drain pipe. The drain pipe is connected to the tank body and passes through the bottom of the tank body to connect to the outside. The output end of the funnel is connected to one end of the drain pipe. A water supply pipe is provided on one side of the tank body. The funnel is used to guide the powder floating on the liquid surface to the drain pipe for discharge. This utility model uses liquid to make airborne dust float on the liquid surface, and water is supplied through the water supply pipe to guide the dust floating on the liquid surface through the funnel to the drain pipe for discharge, preventing dust from entering the vacuum pump body and wearing the internal parts of the vacuum pump.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump pretreatment technology, specifically a vacuum pump dust pretreatment tank. Background Technology

[0002] In industries with high dust levels, such as metallurgy and lithium batteries, vacuum pumps are often required in the manufacturing process. During manufacturing, due to the large amount of dust or metal powder, when the vacuum pump is used to extract air, the dust or metal powder will enter the vacuum pump along with the gas. As the dust or metal powder accumulates, it can cause the pump body to jam, eventually leading to damage to the pump body.

[0003] In the prior art, Chinese patent CN218653505U discloses a pre-dust removal device for vacuum pumps. This dust removal device intercepts dust in the air through a filter screen and further filters the air through activated carbon, thereby improving the service life of the vacuum pump. However, it still needs to clean the filter screen through a spray plate, but does not perform any subsequent treatment on the intercepted dust.

[0004] Therefore, the technical problem to be solved in this case is: how to recycle and treat dust in the air. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a vacuum pump dust pretreatment tank. The gas drawn by the vacuum pump passes through this pretreatment tank, and the dust attached to the gas enters the tank along with the gas and is introduced below the liquid surface, so that the dust floats on the liquid surface. Meanwhile, the gas enters the pump body of the vacuum pump from the exhaust pipe. On the other hand, water is supplied through the water supply pipe, so that the dust floating on the liquid surface is guided from the funnel to the drain pipe for discharge. Thus, the discharged dust can be treated by an external filter device.

[0006] The technical solution of this utility model is:

[0007] A vacuum pump dust pretreatment tank includes a tank body containing liquid. The tank body is provided with an air inlet pipe and an air outlet pipe. One end of the air inlet pipe is connected to the outside, and the other end extends below the liquid surface. The air outlet pipe is located above the liquid surface. The tank body is provided with a funnel and a drain pipe. The drain pipe is connected to the tank body and passes through the bottom of the tank body to communicate with the outside. The output end of the funnel is connected to one end of the drain pipe. A water supply pipe is provided on one side of the tank body. The funnel is used to guide the powder floating on the liquid surface to the drain pipe for discharge.

[0008] Preferably, the pretreatment tank further includes a collection tank located below the drain pipe, with the output end of the drain pipe located inside the collection tank, and the collection tank is used to collect the material discharged from the drain pipe.

[0009] Preferably, the collection tank is provided with a filter bag and a drain outlet. The drain outlet is located at the bottom of the collection tank, and the output end of the drain pipe is located inside the filter bag. The filter bag is used to separate dust and water.

[0010] Preferably, the collection trough is provided with barbs, and the top of the filter bag is provided with a through hole. The barbs pass through the through hole to fix the filter bag in the collection trough.

[0011] Preferably, the air intake pipe is L-shaped, with the horizontal part of the air intake pipe located above the liquid surface in the tank and the vertical part of the air intake pipe located below the liquid surface in the tank.

[0012] Preferably, the water supply pipe is equipped with a control valve, which is used to control the opening and closing of the water supply pipe.

[0013] Preferably, the funnel and the drainage pipe are an integral design.

[0014] Preferably, the drainage pipe is equipped with a one-way valve.

[0015] Preferably, the tank is equipped with a filter screen, which is located between the exhaust pipe and the liquid surface.

[0016] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0017] This invention uses liquid inside the tank to capture dust in the gas drawn in by the vacuum pump, causing the dust to float on the liquid surface. Meanwhile, the gas enters the pump body of the vacuum pump through the exhaust pipe. On the other hand, water is supplied through the water pipe, which guides the dust floating on the liquid surface from the funnel to the drain pipe for discharge. The discharged dust can then be treated by an external filter device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0019] The reference numerals for each of the attached figures are as follows: 1. Tank; 2. Funnel; 3. Drainage pipe; 4. Collection tank; 5. Water supply pipe; 11. Air inlet pipe; 12. Exhaust pipe; 41. Filter bag; 42. Barb; 43. Drain outlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figure 1 A vacuum pump dust pretreatment tank includes a tank body 1 containing liquid. The tank body 1 is provided with an air inlet pipe 11 and an exhaust pipe 12. One end of the air inlet pipe 11 is connected to the outside, and the other end extends below the liquid surface. The exhaust pipe 12 is located above the liquid surface. The tank body 1 is provided with a funnel 2 and a drain pipe 3. The drain pipe 3 is connected inside the tank body 1 and passes through the bottom of the tank body 1 to communicate with the outside. The output end of the funnel 2 is connected to one end of the drain pipe 3. A water supply pipe 5 is provided on one side of the tank body 1. The funnel 2 is used to guide the powder floating on the liquid surface to the drain pipe 3 for discharge.

[0023] It should be noted that this embodiment is for industries with a lot of dust and that require the use of vacuum pumps. The dust can also be metal powder, but the metal powder referred to here is metal with a density less than water, or fine and hydrophobic metal powder, but does not include flammable and explosive metals.

[0024] In practical applications, the air inlet pipe 11 of the tank 1 is connected to the outside, while the exhaust pipe 12 is connected to the suction end of the vacuum pump. When the vacuum pump is pumping air, the outside gas will enter the tank 1 under negative pressure. At this time, the dust floating in the air (the dust referred to in this embodiment can also be metal powder) will enter the tank 1 with the gas through the air inlet pipe 11 and will emerge from below the liquid surface of the tank 1. At this time, the gas will rise and flow towards the exhaust pipe 12, while the dust in the gas will float on the liquid surface. When the water supply pipe 5 supplies water into the tank 1, the liquid level rises, causing the dust floating on the liquid surface to rise. Dust in the liquid rises with the liquid level. When the liquid level is about to exceed the funnel 2, the liquid is guided into the funnel 2, and the dust floating in the liquid is also guided into the funnel 2. The output end of the funnel 2 is connected to the drain pipe 3, which allows the liquid and dust to be discharged together from the drain pipe 3. Workers can use external filtration equipment or systems to filter out the liquid and dust, thereby preventing dust from entering the vacuum pump and wearing down the pump body, thus protecting the pump body. It also prevents dust from floating in the working environment and being inhaled by workers, thus protecting their health.

[0025] Preferably, the pretreatment tank further includes a collection tank 4, which is located below the drain pipe 3, and the output end of the drain pipe 3 is located inside the collection tank 4. The collection tank 4 is used to collect the material discharged from the drain pipe 3.

[0026] As a preferred embodiment, the discharged liquid and dust can be collected by the collection tank 4, and the dust still floats on the liquid surface, which makes it convenient for staff to recycle the discharged liquid and dust.

[0027] Preferably, the collection tank 4 is provided with a filter bag 41 and a drain outlet 43. The drain outlet 43 is located at the bottom of the collection tank 4, and the output end of the drain pipe is located inside the filter bag 41. The filter bag 41 is used to separate dust and water.

[0028] As a preferred embodiment, by directly setting a filter bag 41 in the collection tank 4, water can flow out of the filter bag 41 and be discharged outward from the drain outlet 43, while dust remains inside the filter bag 41. Finally, the dust on the filter bag 41 can be recycled. As a preferred embodiment, the drain outlet 43 can be connected to an external circulating water device and connected to the water supply pipe 5, thereby enabling the recycling of water resources and improving the water resource utilization rate.

[0029] Preferably, the collection trough 4 is provided with a barb 42, and the top of the filter bag 41 is provided with a through hole. The barb 42 passes through the through hole to fix the filter bag 41 in the collection trough 4.

[0030] With the above design, in order to facilitate the recycling and replacement of filter bag 41 by staff, filter bag 41 can be directly disassembled and installed through the barb 42 and the through hole of filter bag 41, which is convenient for staff to operate.

[0031] Preferably, the air intake pipe 11 is L-shaped, with the horizontal part of the air intake pipe 11 located above the liquid surface in the tank 1 and the vertical part of the air intake pipe 11 located below the liquid surface in the tank 1.

[0032] As a preferred embodiment, the L-shaped air inlet pipe 11 allows gas to enter from the part above the liquid surface to the part below the liquid surface of the tank 1. As long as the liquid level does not exceed the part of the air inlet pipe 11 that extends into the liquid surface, the liquid will not enter the horizontal part of the air inlet pipe 11, thereby preventing the liquid from flowing back. It should be noted that in this design, the height of the funnel 2 is lower than the horizontal part of the air inlet pipe 11, thereby preventing the liquid level from being higher than the vertical part of the air inlet pipe 11, which would cause backflow.

[0033] Preferably, the water supply pipe 5 is provided with a control valve, which is used to control the opening and closing of the water supply pipe 5.

[0034] In the above design, the operator can control the water supply time of the water pipe 5 through the control valve. Specifically, when there is no liquid discharge from the drain pipe 3 for a long time, the water pipe 5 can be opened by the control valve, so that the liquid level in the tank 1 rises. When it rises above the height of the funnel 2, liquid carrying dust will be discharged from the drain pipe 3. On the other hand, when it is found that the discharge volume of the drain pipe 3 is large, the water pipe 5 can be closed briefly, so that the liquid level in the tank 1 drops to a level where the discharge volume is not large. This helps to further prevent the liquid level in the tank 1 from exceeding the horizontal part of the air inlet pipe 11. It should be noted that the control valve is not shown in the figure.

[0035] Preferably, the funnel 2 and the drainage pipe 3 are an integral design.

[0036] As a preferred embodiment, the integrated design of the funnel 2 and the drain pipe 3 can improve the sealing performance of the funnel 2 and the drain pipe 3, prevent the liquid in the tank 1 from leaking out from below the liquid surface, making it difficult for the liquid level to rise to the funnel 2, and also improve the stability of the funnel 2 and the drain pipe 3.

[0037] Preferably, the drainage pipe 3 is equipped with a one-way valve.

[0038] In this embodiment, there is a one-way valve on the drain pipe 3. When the vacuum pump draws gas, the gas will carry dust into the tank 1. If the drain pipe 3 and the tank 1 are connected, the gas in the drain pipe 3 will also be drawn into the tank 1. At this time, the gas drawn in from the drain pipe 3 will not pass through the liquid in the tank 1 and will be discharged directly from the exhaust pipe 12. Therefore, to avoid this situation, the one-way valve can prevent gas from being drawn into the tank from the exhaust pipe 12, but does not prevent the liquid and dust from being discharged from the drain pipe 3. The one-way valve is a commonly used one-way valve known to those skilled in the art. The one-way valve is not shown in the figure.

[0039] Preferably, the tank 1 is provided with a filter screen, which is located between the exhaust pipe 12 and the liquid surface.

[0040] As a preferred embodiment, when dust floats on the liquid surface in the tank 1, the introduced gas will rise to the liquid surface in the form of bubbles and burst. The gas generated at this time may carry a small amount of dust upward to float. In order to prevent this part of the dust from being carried by the gas into the pump body of the vacuum pump, a filter screen can be set between the exhaust pipe 12 and the liquid surface to prevent the dust from passing through.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust pre-treatment tank for vacuum pumps, comprising a tank body, a liquid being stored in the tank body, an air inlet pipe and an air outlet pipe being provided on the tank body, one end of the air inlet pipe being communicated with the outside, the other end of the air inlet pipe extending below the liquid surface of the liquid, the air outlet pipe being located above the liquid surface of the liquid, characterized in that, The tank is equipped with a funnel and a drain pipe. The drain pipe is connected to the tank and passes through the bottom of the tank to communicate with the outside. The output end of the funnel is connected to one end of the drain pipe. A water supply pipe is provided on one side of the tank. The funnel is used to guide the powder floating on the liquid surface to the drain pipe for discharge.

2. A vacuum pump dust precarburettor tank according to claim 1, characterised in that, The pretreatment tank also includes a collection tank located below the drain pipe, with the outlet end of the drain pipe located inside the collection tank. The collection tank is used to collect the material discharged from the drain pipe.

3. A vacuum pump dust precarburettor tank according to claim 2, characterised in that, The collection tank is equipped with a filter bag and a drain outlet. The drain outlet is located at the bottom of the collection tank, and the output end of the drain pipe is located inside the filter bag. The filter bag is used to separate dust and water.

4. A dust pre-treatment tank for a vacuum pump according to claim 3, characterised in that, The collection trough is equipped with barbs, and the top of the filter bag is provided with a through hole. The barbs pass through the through hole to fix the filter bag in the collection trough.

5. The vacuum pump dust precarburetion canister according to claim 1, characterized in that, The air intake pipe is L-shaped, with the horizontal part of the air intake pipe located above the liquid surface in the tank and the vertical part of the air intake pipe located below the liquid surface in the tank.

6. The vacuum pump dust precarburetion canister according to claim 1, characterized in that, The water supply pipe is equipped with a control valve, which is used to control the opening and closing of the water supply pipe.

7. The vacuum pump dust precarburetion canister according to claim 1, characterized in that, The funnel and the drainage pipe are designed as a single unit.

8. The vacuum pump dust precarburetion canister according to claim 1, characterized in that, The drainage pipe is equipped with a one-way valve.

9. The vacuum pump dust precarburetion canister according to claim 1, characterized in that, The tank is equipped with a filter screen, which is located between the exhaust pipe and the liquid surface.

Images