CN219539787U

CN219539787U - Filter tank for vacuum pump

Info

Publication number: CN219539787U
Application number: CN202320693527.1U
Authority: CN
Inventors: 李坤生
Original assignee: Liyuan Xiamen Technology Co ltd
Current assignee: Liyuan Xiamen Technology Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-18
Anticipated expiration: 2033-03-31

Abstract

The utility model provides a filter tank for a vacuum pump, which comprises a tank body, a filter assembly and a cleaning assembly. A filter cavity is arranged in the tank body. The middle part of the filter cavity is provided with a supporting ring. The filter cavity is provided with an air inlet, a water outlet and an air outlet, the air inlet is positioned below the supporting ring, the air outlet is positioned above the supporting ring, and the water outlet is positioned at the bottom of the filter cavity. The filter assembly includes a filter layer. The cleaning assembly comprises a top rotary spray head and a bottom rotary spray head, wherein the top rotary spray head is installed in the filter cavity and located above the filter layer, and the top rotary spray head is in butt joint with a mixed high-pressure water and air source. The bottom rotary spray head is installed in the filter cavity and is positioned below the filter layer. The bottom rotary spray head is connected with a water inlet pipeline, and the other end of the water inlet pipeline is abutted to a water source outside the tank body. The filter tank has better self-cleaning capability.

Description

Filter tank for vacuum pump

Technical Field

The utility model relates to a filter tank for a vacuum pump.

Background

The dry pump is a device for vacuum treatment of a certain space by sucking air, and has very wide application. At present, the dry pump on the market can be provided with front-end air treatment accessories, can be used for filtering sundries and dust in sucked gas, prevents dust from entering the dry pump, and can cause abrasion of running parts in the dry pump after long-term dust suction, so that the service life of the dry pump is shortened. Therefore, a dry pump filter with self-cleaning capability is designed by a plurality of manufacturers, and the principle is that an air pump is connected to an air outlet of the filter, when the filter is cleaned, the filter is disconnected from the dry pump, air is blown to the air outlet of the filter, namely, the air inlet direction of a filter cylinder in the filter is opposite, dust blocked outside the filter cylinder can be blown off, and therefore, the self-cleaning effect in the filter is realized in a reverse blowing mode. In addition, some filter tanks adopt an internal water spraying mode, however, simple water spraying cleaning is difficult to clean, meanwhile, the existing water spraying cleaning component generally adopts a plurality of water discharging devices so as to improve the flushing cleanliness degree and the uniformity degree, but the problems of high cost, complex installation and high difficulty in maintenance of the water spraying cleaning component are caused.

Disclosure of Invention

The utility model provides a filtering tank structure with high cleaning degree, which aims to solve the technical problems.

A filter tank for a vacuum pump comprises a tank body, a filter assembly and a cleaning assembly.

A filter cavity is arranged in the tank body. The middle part of the filter cavity is provided with a supporting ring. The filter cavity is provided with an air inlet, a water outlet and an air outlet, the air inlet is positioned below the supporting ring, the air outlet is positioned above the supporting ring, the water outlet is positioned at the bottom of the filter cavity, and water collected at the bottom of the tank body can be discharged.

The filter assembly includes a filter layer. The filter layer is arranged on the supporting ring, and the filter holes of the filter layer become larger gradually from top to bottom, so that the gas passing through the filter tank can be filtered.

The cleaning assembly comprises a top rotary sprayer and a bottom rotary sprayer, and the top rotary sprayer is installed in the filter cavity and is located above the filter layer. The top rotary spray head is connected with a mixing pipeline, and the other end of the mixing pipeline is in butt joint with a water source and an air source outside the tank body, so that mixed high-pressure water and air can be flushed onto the filter layer, and sundries in the filter layer can be flushed downwards. The bottom rotary spray head is installed in the filter cavity and is positioned below the filter layer. The bottom rotary spray head is connected with a water inlet pipeline, the other end of the water inlet pipeline is abutted to a water source outside the tank body, impurities washed down or adhered to the bottom of the filter layer can be washed, and the filter layer is matched with the top rotary spray head for use, so that the overall cleaning quality of the filter layer is improved.

When the filter layer is used, when the filter layer needs to be cleaned, the air inlet and the air outlet are closed, the top rotary spray head is opened, the filter layer is flushed by high-pressure water-air mixture, sundries are flushed downwards, and then the bottom rotary spray head is opened, so that the flushed sundries are further cleaned, fall into the bottom of the tank body and are discharged through the water outlet.

Preferably, the filter layer adopts a demister, has a good filtering effect, and can be cleaned by water.

Preferably, in order to improve the installation stability of the filter layer, the filter assembly further includes a limiting member, and the limiting member includes an annular frame and ribs in the middle. The periphery of the annular frame is provided with a plurality of extending plates extending upwards, the extending plates are provided with screw holes, and screw rods are screwed into the screw holes. The limiting piece is arranged at the top of the filter layer, and the filter layer is pressed on the supporting ring by the screw rod pushing against the peripheral wall of the filter cavity.

Preferably, the air inlet, the water outlet, the air outlet, the mixing pipeline and the water inlet pipeline are all provided with electronic control valves, so that automatic control can be realized.

Preferably, the filter cavity is further provided with an air pressure sensor, and the air pressure sensor is connected with and controls the air inlet, the water outlet, the air outlet, the mixing pipeline and the electronic control valve of the water inlet pipeline. The air pressure sensor comprises a top layer air pressure sensor and a bottom layer air pressure sensor. The periphery of filter chamber is equipped with top installation mouth and bottom installation mouth respectively, just top installation mouth and bottom installation mouth are located respectively filter component's upper and lower both sides, during the use, through the contrast the pressure of both sides about the filter layer can judge whether the jam is serious, whether need stop filtering and begin to wash.

Preferably, in order to improve the flushing uniformity of the spray head on the filter layer, the top rotary spray head and the bottom rotary spray head adopt strip water outlets, and sheet water is discharged.

Preferably, the outlet of the strip-shaped water outlet is provided with a V-shaped groove, which is also helpful for forming sheet-shaped water outlet.

Preferably, the tank body is further provided with an observation window, and an operator can check the conditions inside the tank body, especially the blocking condition and the cleaning condition of the filter layer through the observation window.

Preferably, the observation windows are in a pair and are symmetrically distributed on two sides below the filter assembly.

Preferably, the lower part of the tank body is provided with supporting legs.

From the above description of the utility model, the utility model has the following advantages:

1. the rotary spray heads are adopted, so that a single spray head can cover the whole filter layer by means of water power, the number of the spray heads is reduced, the cost is lowered, and meanwhile, the installation difficulty and the maintenance difficulty are lowered;

2. the top layer rotary spray head sprays high-pressure mixed water and gas, so that the filter layer can be flushed forcefully;

3. the bottom layer rotary spray head does not adopt a water vapor mixing mode, impurities at the bottom of the filter layer are prevented from being upwards flushed again, the function of flushing off the impurities adhered to the bottom of the filter layer is only provided, and the filter layer can be cleaned by matching with the top layer rotary spray head;

4. the water outlet of the rotary spray head outputs flaky water, so that the cleaning uniformity can be further improved;

5. the air pressure sensor is adopted, the air pressures at the upper side and the lower side of the filter layer can be compared, whether the filter layer is blocked or not can be automatically judged, and whether the filter layer is cleaned or not can be automatically judged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

Wherein:

FIG. 1 is an isometric view of a canister for a vacuum pump;

FIG. 2 is a second axial side view of a canister for a vacuum pump;

FIG. 3 is a front view of a filter canister for a vacuum pump;

FIG. 4 is a side view of a canister for a vacuum pump;

FIG. 5 is a cross-sectional view of a filter canister for a vacuum pump;

FIG. 6 is a second cross-sectional view of a canister for a vacuum pump;

FIG. 7 is an enlarged view of a portion of a canister for a vacuum pump;

the identifiers in fig. 1 to 7 are respectively: the tank 1, the support ring 11, the air inlet 12, the water outlet 13, the air outlet 14, the observation window 15, the top mounting port 16, the bottom mounting port 17, the filter assembly 2, the filter layer 21, the limiting piece 22, the cleaning assembly 3, the top rotary spray head 31, the bottom rotary spray head 32, the mixing pipeline 33 and the water inlet pipeline 34.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 7, a filter tank for a vacuum pump includes a tank body 1, a filter assembly 2, and a cleaning assembly 3.

A filter cavity is arranged in the tank body 1. The middle part of the filter cavity is provided with a support ring 11. The filter cavity is provided with an air inlet 12, a water outlet 13 and an air outlet 14, wherein the air inlet 12 is positioned below the supporting ring 11, the air outlet 14 is positioned above the supporting ring 11, and the water outlet 13 is positioned at the bottom of the filter cavity and can discharge water collected at the bottom of the tank body 1. In another embodiment, the tank 1 is further provided with a viewing window 15, through which viewing window 15 an operator can view the conditions inside the tank 1, in particular the clogging and cleaning of the filter layer 21. Preferably, the observation windows 15 are arranged in a pair and symmetrically distributed on two sides below the filter assembly 2.

The filter assembly 2 comprises a filter layer 21. The filter layer 21 is arranged on the support ring 11, and the filter holes of the filter layer 21 become larger gradually from top to bottom, so that the gas passing through the filter tank can be filtered. Preferably, the filtering layer 21 is a foam remover, which has a better filtering effect and can be cleaned by water. In one embodiment, to improve the installation stability of the filter layer 21, the filter assembly 2 further includes a limiting member 22, where the limiting member 22 includes an annular frame and a rib in the middle. The periphery of the annular frame is provided with a plurality of extending plates extending upwards, the extending plates are provided with screw holes, and screw rods are screwed into the screw holes. The limiting piece 22 is arranged on the top of the filter layer 21, and pushes the filter layer 21 against the supporting ring 11 through the screw rod and the peripheral wall of the filter cavity.

The cleaning assembly 3 includes a top rotary sprayer 31 and a bottom rotary sprayer 32, the top rotary sprayer 31 being mounted within the filter cavity above the filter layer 21. The top rotary spray head 31 is connected with a mixing pipeline 33, and the other end of the mixing pipeline 33 is in butt joint with a water source and an air source outside the tank body 1, so that mixed high-pressure water and air can be flushed onto the filter layer 21, and sundries in the filter layer 21 can be flushed downwards. The bottom rotary sprayer 32 is mounted within the filter cavity below the filter layer 21. The bottom rotary spray head 32 is connected with a water inlet pipeline 34, the other end of the water inlet pipeline 34 is connected with a water source outside the tank body 1 in a butt joint mode, impurities washed down or adhered to the bottom of the filter layer 21 can be washed, and the impurities are matched with the top rotary spray head 31 for use, so that the overall cleaning quality of the filter layer 21 is improved.

In one embodiment, in order to improve the flushing uniformity of the filter layer 21, the top rotary sprayer 31 and the bottom rotary sprayer 32 adopt strip water outlets, and water in a sheet form is discharged. Preferably, the outlet of the strip-shaped water outlet is provided with a V-shaped groove, which is also helpful for forming sheet-shaped water outlet. In addition, because the rotary spray head and the sheet-shaped water outlet belong to the prior art, the utility model only applies to the rotary spray head and does not belong to the improvement point of the utility model, and the description of how to rotate and spray the sheet-shaped water outlet by means of hydraulic force is omitted.

When the filter layer 21 needs to be cleaned, the air inlet 12 and the air outlet 14 are closed, the top rotary spray head 31 is opened, the filter layer 21 is flushed by high-pressure water-air mixture, sundries are flushed downwards, and then the bottom rotary spray head 32 is opened, the flushed sundries are further cleaned, fall into the bottom of the tank body 1 and are discharged from the water outlet 13.

In other embodiments, in order to increase the automation degree of cleaning the filter tank, the air inlet 12, the water outlet 13, the air outlet 14, the mixing pipe 33 and the water inlet pipe 34 are all provided with electronic control valves (not shown), so that automation control can be achieved.

In addition, the method comprises the following steps. The filter chamber is also provided with an air pressure sensor (not shown) which is connected to and controls the electronic control valves of the air inlet 12, the water outlet 13, the air outlet 14, the mixing pipe 33 and the water inlet pipe 34. The air pressure sensor comprises a top layer air pressure sensor and a bottom layer air pressure sensor. The periphery of the filter cavity is respectively provided with a top mounting opening 16 and a bottom mounting opening 17, and the top mounting opening 16 and the bottom mounting opening 17 are respectively positioned on the upper side and the lower side of the filter assembly 2 for mounting the top-layer air pressure sensor and the bottom-layer air pressure sensor. In use, by comparing the pressures on the upper and lower sides of the filter layer 21, it can be determined whether the clogging is serious, whether the filtration is stopped and the cleaning is started.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.

Claims

1. The filter tank for the vacuum pump is characterized by comprising a tank body, a filter assembly and a cleaning assembly;

a filter cavity is arranged in the tank body; a supporting ring is arranged in the middle of the filter cavity; the filter cavity is provided with an air inlet, a water outlet and an air outlet, the air inlet is positioned below the supporting ring, the air outlet is positioned above the supporting ring, and the water outlet is positioned at the bottom of the filter cavity;

the filter assembly includes a filter layer; the filter layer is arranged on the support ring; the filtering holes of the filtering layer become larger gradually from top to bottom;

the cleaning assembly comprises a top rotary spray head and a bottom rotary spray head, and the top rotary spray head is arranged in the filter cavity and is positioned above the filter layer; the top rotary spray head is connected with a mixing pipeline, and the other end of the mixing pipeline is in butt joint with a water source and an air source outside the tank body; the bottom rotary spray head is arranged in the filter cavity and is positioned below the filter layer; the bottom rotary spray head is connected with a water inlet pipeline, and the other end of the water inlet pipeline is abutted to a water source outside the tank body.

2. A canister for a vacuum pump according to claim 1, wherein the filter layer is a demister.

3. The canister of claim 1, wherein the filter assembly further comprises a stop member comprising an annular frame and a middle rib; the periphery of the annular frame is provided with a plurality of extending plates extending upwards, the extending plates are provided with screw holes, and screw rods are screwed into the screw holes; the limiting piece is arranged at the top of the filter layer and props against the peripheral wall of the filter cavity through the screw rod.

4. The canister for a vacuum pump according to claim 1, wherein the air inlet, the water outlet, the air outlet, the mixing pipe, and the water inlet pipe are each provided with an electronic control valve.

5. The canister for a vacuum pump according to claim 4, wherein the filter chamber is further provided with an air pressure sensor connected to and controlling the electronic control valves of the air inlet, the water outlet, the air outlet, the mixing pipe and the water inlet pipe; the air pressure sensor comprises a top layer air pressure sensor and a bottom layer air pressure sensor; the periphery of the filter cavity is respectively provided with a top mounting opening and a bottom mounting opening, and the top mounting opening and the bottom mounting opening are respectively positioned on the upper side and the lower side of the filter assembly.

6. The filter tank for a vacuum pump according to claim 1, wherein the top rotary nozzle and the bottom rotary nozzle adopt strip water outlets, and water in a sheet form is discharged.

7. The filter tank for a vacuum pump according to claim 6, wherein the outlet of the strip-shaped water outlet is provided with a V-shaped groove.

8. The canister for a vacuum pump of claim 1, wherein the canister body is further provided with an observation window.

9. The canister of claim 8, wherein the viewing windows are a pair and are symmetrically disposed on opposite sides of the lower portion of the filter assembly.

10. The canister for a vacuum pump according to claim 1, wherein the lower portion of the canister body is provided with support legs.