CN219922236U

CN219922236U - Liquid filtering device

Info

Publication number: CN219922236U
Application number: CN202321420440.3U
Authority: CN
Inventors: 任正军; 李鹏
Original assignee: Shaanxi Yuedi Electric Power Technology Co ltd
Current assignee: Shaanxi Yuedi Electric Power Technology Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2023-10-31
Anticipated expiration: 2033-06-06

Abstract

The utility model provides a liquid filtering device, which comprises a filtering box, a receiving tank and a vacuum pump which are sequentially connected in series, wherein the receiving tank is communicated with the vacuum pump through a check valve; the bottom in the box body of the filter box is provided with a bearing disc connected with the output end of the motor, and the bearing disc is provided with a filter assembly; the upper end of the filtering component is communicated with the liquid discharge pipe through a water collecting pipe, and the water collecting pipe is rotationally connected with the liquid discharge pipe; the bearing disc is also connected with the water collecting pipe through a connecting rib; the upper part of the side surface of the box body of the filter box is provided with a liquid inlet; the upper part of the side surface of the receiving tank is provided with a liquid input port, and the top of the receiving tank is provided with an emptying valve and an air extraction port. According to the liquid filtering device provided by the utility model, the bearing disc connected with the motor is arranged, the filtering component is arranged on the bearing disc, and the motor drives the bearing disc and the filtering component to rotate during filtering, so that part of solid impurities attached to the surface of the filtering component can fall off, and the defects that the existing filtering device is easy to block and needs frequent cleaning are overcome.

Description

Liquid filtering device

Technical Field

The utility model relates to the technical field of separation and filtration, in particular to a liquid filtering device.

Background

The filtration is a process of purifying and purifying fluid by a special device, and in industrial production, purified water is needed in a hydraulic section; in the production of some chemicals, the substrate or product needs to be filtered, so that filtering equipment is indispensable, and the existing filtering modes include centrifugal filtering, pressure reducing filtering and the like, and different filtering modes also derive different filtering equipment.

For decompression filtration, namely suction filtration, the existing method is that liquid to be filtered is driven by negative pressure to realize solid-liquid separation through a filter element, but in the existing equipment, the filter element is fixed on the filter equipment, in most of the equipment, the filter element is horizontally arranged, and the flow direction of the liquid flows from top to bottom, so that substances trapped during the use of the equipment can be gradually accumulated, and the more accumulated substances tend to be, so that the pollution and blockage of the filter equipment are easily caused, and frequent cleaning is needed.

Disclosure of Invention

The utility model provides a liquid filtering device which is used for solving the problems that the traditional liquid filtering equipment is easy to be blocked and needs to be cleaned frequently.

The utility model provides a liquid filtering device, which comprises a filtering box, a receiving tank and a vacuum pump which are sequentially connected in series, wherein the receiving tank is communicated with the vacuum pump through a check valve;

the bottom in the box body of the filter box is provided with a bearing disc connected with the output end of the motor, and the bearing disc is provided with a filter assembly;

the upper end of the filtering component is communicated with the liquid discharge pipe through a water collecting pipe, and the water collecting pipe is rotationally connected with the liquid discharge pipe;

the bearing disc is also connected with the water collecting pipe through a connecting rib;

the upper part of the side surface of the box body of the filter box is provided with a liquid inlet; the upper part of the side surface of the receiving tank is provided with a liquid input port, and the top of the receiving tank is provided with an emptying valve and an air extraction port.

Optionally, the filter assembly comprises a plurality of filter tubes;

the upper end of the filter pipe is covered with a pipe cover, and the pipe cover is provided with a water collecting branch pipe communicated with the filter pipe;

the water collecting branch pipe is connected with the water collecting pipe;

the bearing plate is provided with a plurality of clamping grooves, and the filter pipe is fixed on the bearing plate through the clamping grooves.

Optionally, the filter pipe sequentially comprises a fixed grid, a filter layer and a supporting shell from inside to outside;

the support shell is provided with a plurality of through holes.

Optionally, the liquid filtering device further comprises a fan, and the fan is respectively connected with the filtering box and the receiving tank through a three-way valve.

Optionally, an air valve is arranged between the fan and the three-way valve.

Optionally, a cleaning brush is arranged on one side of the connecting rib close to the inner wall of the filter box.

Optionally, the filter layer is a filter screen or a filter membrane.

Optionally, the aperture of the through hole at the inner wall of the support housing is smaller than the aperture at the outer wall.

According to the liquid filtering device provided by the utility model, the bearing plate connected with the motor is arranged, the filtering component is arranged on the bearing plate, and the motor drives the bearing plate and the filtering component to rotate during filtering, so that part of solid impurities attached to the surface of the filtering component can fall off, the pollution and blockage of the filtering component are reduced, the service life and the maintenance period of the filtering component are prolonged, and the defects that the traditional filtering device is easy to be polluted and blocked and needs frequent cleaning are overcome.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a liquid filtering device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a filter assembly according to an embodiment of the present utility model after disassembly;

FIG. 3 is a schematic cross-sectional view of a filter tube according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a liquid filtering device according to another embodiment of the present utility model;

fig. 5 is a schematic view of a liquid filtering device according to another embodiment of the present utility model.

Reference numerals illustrate:

1. a filter box; 2. a receiving tank; 3. a vacuum pump; 4. a blower; 11. a filter assembly; 12. a motor; 13. a water collecting pipe; 14. a receiving tray; 15. a connecting rib; 16. a cleaning brush; 31. a non-return valve; 41. a three-way valve; 101. a liquid inlet; 102. a liquid discharge pipe; 201. a liquid inlet; 202. an extraction opening; 203. a blow-off valve; 401. an air valve; 1101. a filter tube; 1102. a tube cover; 1103. a water collecting branch pipe; 1401. a clamping groove; 11011. fixing the grid; 11012. a filter layer; 11013. a support housing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.

As shown in fig. 1, the present utility model provides a liquid filtering apparatus, comprising a filtering tank 1, a receiving tank 2 and a vacuum pump 3 which are sequentially connected in series, wherein the receiving tank 2 and the vacuum pump 3 are communicated through a check valve 31;

the bottom in the box body of the filter box 1 is provided with a bearing plate 14 connected with the output end of the motor 12, and the bearing plate 14 is provided with a filter assembly 11;

the upper end of the filter assembly 11 is communicated with the liquid discharge pipe 102 through the water collecting pipe 13, and the water collecting pipe 13 is rotationally connected with the liquid discharge pipe 102;

the bearing plate 14 is also connected with the water collecting pipe 13 through a connecting rib 15;

the upper part of the side surface of the box body of the filter box 1 is provided with a liquid inlet 101; the upper part of the side surface of the receiving tank 2 is provided with a liquid input port 201, and the top is provided with a vent valve 203 and an extraction port 202.

In the present utility model, the check valve 31 allows the gas to flow from the receiving tank 2 to the vacuum pump 3 while preventing the reverse flow thereof, i.e., it functions as a suck-back prevention.

In the utility model, one end of the connecting rib 15 is fixed on the side surface of the bearing plate 14, and the other end is fixed on the water collecting pipe 13, so that the filter assembly 11 can be prevented from falling off in the use process. In addition, for easy disassembly and replacement, the connecting ribs 15 are detachably connected with the water collecting pipe 13 of the bearing plate 14.

In use, the drain valve 203 is closed and liquid to be filtered is fed into the filter box 1 from the liquid inlet 101, and the vacuum pump 3 and the motor 12 are turned on.

The vacuum pump 3 gradually sucks the inside of the receiving tank 2 into a negative pressure state, and the liquid to be treated is filtered by the filter assembly 11 under the drive of the negative pressure, and is sucked into the receiving tank 2 through the water collecting pipe 13 and the drain pipe 102.

At the same time, the motor 12 drives the bearing disc 14 to rotate, the filter assembly 11 borne on the bearing disc 14 rotates along with the bearing disc, and in the rotating process, part of solid impurities attached to the outer surface of the filter assembly 11 fall off, so that the filter assembly 11 can keep a certain degree of permeability in use. The maintenance period is prolonged, and the pollution and blockage are reduced.

When the liquid in the receiving tank 2 reaches a certain height and needs to be transferred, the vacuum pump 3 can be closed, the vent valve 203 can be opened (the occurrence of the reverse suction condition can be avoided due to the existence of the check valve 31), and the liquid transfer can be performed after the internal and external air pressures of the receiving tank 2 are balanced.

According to the liquid filtering device provided by the utility model, the bearing disc 14 connected with the motor 12 is arranged, and the filtering component 11 is arranged on the bearing disc 14, so that the motor 12 drives the bearing disc 14 and the filtering component 11 to rotate during filtering, so that part of solid impurities attached to the surface of the filtering component 11 can fall off, the fouling of the filtering component is reduced, the service life and the service period of the filtering component are prolonged, and the defects that the existing filtering device is easy to block and needs frequent cleaning are overcome.

As shown in fig. 2, optionally, filter assembly 11 includes a plurality of filter tubes 1101;

the upper end of the filter tube 1101 is covered with a tube cover 1102, and the tube cover 1102 is provided with a water collecting branch pipe 1103 communicated with the filter tube 1101;

the water collecting branch pipe 1103 is connected with the water collecting pipe 13;

the receiving tray 14 is provided with a plurality of clamping grooves 1401, and the filter tubes 1101 are fixed on the receiving tray 14 through the clamping grooves 1401.

In the utility model, in use, suction of the vacuum pump 3 forms negative pressure, and liquid filtered by the filter pipe 1101 enters the filter pipe 1101 under the drive of the negative pressure, and then enters the water collecting pipe 13 through the water collecting branch pipe 1103.

The tube cover 1102 is used in cooperation with the water collecting branch tube 1103 to facilitate the output of the filtered liquid in the filter tube 1101.

The support tray 14 is provided with a plurality of clamping grooves 1401 which are arranged in one-to-one correspondence with the filter tubes 1101, and the filter tubes 1101 can be fixed on the support tray 14 through the clamping grooves 1401, so that the filter tubes 1101 are prevented from falling off in the use process.

As shown in fig. 3, optionally, filter tube 1101 includes a fixed mesh 11011, a filter layer 11012, and a support housing 11013 in that order from the inside to the outside; the support housing 11013 is provided with a plurality of through holes.

The function of the fixing grid 11011 is to make the filter layer 11012 closely attach to the inner wall of the supporting shell 11013, and simultaneously fix the filter layer 11012, so as to avoid the filter layer 11012 from being damaged or incapable of being filtered due to deformation of the filter layer 11012 during filtering. In addition, the stationary mesh 11011 may also function to support the filter layer 11012.

The supporting shell 11013 plays a role in supporting and protecting the fixed grid 11011 and the filter layer 11012 of the inner layer, and a plurality of through holes are formed in the supporting shell 11013, so that liquid to be filtered can enter the inner layer to be filtered, and large-particle substances can be trapped.

As shown in fig. 4, the liquid filtering apparatus may further include a blower 4, and the blower 4 is connected to the filtering tank 1 and the receiving tank 2 through three-way valves 41, respectively.

In the utility model, the fan 4 can blow air back to the filter assembly 11, so as to clean the filter assembly 11 (mainly the filter layer 11012 and the support housing 11013 for blocking dirt), and prolong the service life and the replacement period.

In normal use, the three-way valve 41 is switched to a state in which the filter tank 1 and the receiving tank 2 are communicated to block the blower 4, and the above-described filtration process is performed on the liquid to be filtered.

When the filter assembly 11 needs to be maintained and cleaned, the three-way valve 41 is switched to a state that the filter box 1 is communicated with the fan 4 to receive the blocking of the tank 2, the fan 4 is used for blowing air back to the filter assembly 11 to clean the dirt blocking of the filter layer 11012 and the support shell 11013, so that the filter assembly 11 is recovered to the filtering performance.

As shown in fig. 4, an air valve 401 is optionally provided between the blower 4 and the three-way valve 41.

In the present utility model, the air valve 401 is used to adjust the intake air flow rate, thereby adjusting the air pressure of blowback.

As shown in fig. 5, optionally, a cleaning brush 16 is provided on the side of the connecting rib 15 close to the inner wall of the filter box 1.

In the utility model, the cleaning brush 16 on the surface of the connecting rib 15 can brush and clean the side wall of the filter box 1 in the rotating process, and in a realizable mode, the cleaning brush can also be arranged on the lower surface of the bearing plate 14, so that the aim of cleaning the inner wall of the filter box 1 is fulfilled.

Optionally, the filter layer 11012 is a filter screen or filter membrane.

In the utility model, the selection of the filter screen or the filter membrane can be set according to actual production requirements, and the filter screen and the filter membrane in the utility model represent filter elements with different precision, the filter membrane represents a filter element with high precision, and the filter screen represents a filter element with lower precision.

If high filtration accuracy is required, a filter membrane or other high accuracy filter element is selected, and if lower filtration accuracy is required, a filter screen or other lower filtration accuracy filter element may be selected.

Alternatively, the aperture of the through hole is smaller at the inner wall of the support housing 11013 than at the outer wall.

In the utility model, the tapered hole is beneficial to quickly cleaning the dirt blocking of the through hole when the filter assembly 11 is reversely blown.

The working process of the liquid filtering device is as follows:

when in use, the emptying valve 203 is closed, the three-way valve 41 is switched to a state that the filter box 1 is communicated with the receiving tank 2 to block the fan 4, liquid to be filtered is input into the filter box 1 from the liquid inlet 101, and the vacuum pump 3 and the motor 12 are started at the moment.

The vacuum pump 3 gradually sucks the interior of the receiving tank 2 into a negative pressure state, under the driving of the negative pressure, the liquid to be treated firstly passes through the supporting shell 11013 of the filter tube 1101 to filter out large particle impurities which cannot pass through the through holes, primary filtration is carried out, further, filtration with higher precision is carried out through the filter layer 11012, and the filtered liquid enters the filter tube 1101 and is sucked into the receiving tank 2.

At the same time, the motor 12 drives the bearing plate 14 to rotate, the filter tube 1101 borne on the bearing plate 14 rotates along with the bearing plate, and during the rotation process, part of solid impurities intercepted by the support housing 11013 of the filter tube 1101 fall off, so that the support housing 11013 can keep a certain degree of permeability in use. And the cleaning brush 16 on the surface of the connecting rib 15 can brush and clean the side wall of the filter box 1 in the rotating process.

When the filter assembly 11 needs to be maintained and cleaned, the three-way valve 41 is switched to a state that the filter box 1 is communicated with the fan 4 to receive the blocking of the tank 2, the fan 4 is utilized to blow air back to the filter assembly 11, the filter layer 11012 and the supporting shell 11013 are cleaned, so that the filter assembly 11 is enabled to recover the filtering performance, and when the air filter is used, the air valve 401 can be adjusted according to actual conditions, so that the flow of air blown by the fan 4 can be adjusted.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The liquid filtering device is characterized by comprising a filtering box (1), a receiving tank (2) and a vacuum pump (3) which are sequentially connected in series, wherein the receiving tank (2) and the vacuum pump (3) are communicated through a check valve (31);

a bearing disc (14) connected with the output end of the motor (12) is arranged at the bottom in the box body of the filter box (1), and a filter assembly (11) is borne on the bearing disc (14);

the upper end of the filtering component (11) is communicated with the liquid discharge pipe (102) through a water collecting pipe (13), and the water collecting pipe (13) is rotationally connected with the liquid discharge pipe (102);

the receiving disc (14) is connected with the water collecting pipe (13) through a connecting rib (15);

the upper part of the side surface of the box body of the filter box (1) is provided with a liquid inlet (101); the upper part of the side surface of the receiving tank (2) is provided with a liquid input port (201), and the top of the receiving tank is provided with an emptying valve (203) and an extraction opening (202).

2. The liquid filtration device of claim 1, wherein the filtration assembly (11) comprises a plurality of filtration tubes (1101);

a pipe cover (1102) is covered on the upper end of the filter pipe (1101), and a water collecting branch pipe (1103) communicated with the filter pipe (1101) is arranged on the pipe cover (1102);

the water collecting branch pipe (1103) is connected with the water collecting pipe (13);

a plurality of clamping grooves (1401) are formed in the receiving tray (14), and the filter tubes (1101) are fixed to the receiving tray (14) through the clamping grooves (1401).

3. The liquid filtering device according to claim 2, wherein the filter tube (1101) comprises, in order from inside to outside, a fixed mesh (11011), a filter layer (11012) and a support housing (11013);

the support housing (11013) is provided with a plurality of through holes.

4. The liquid filtering device according to claim 1, characterized in that it further comprises a blower (4), said blower (4) being connected to said filter tank (1) and to the receiving tank (2) respectively by means of a three-way valve (41).

5. The liquid filtering device according to claim 4, characterized in that an air valve (401) is arranged between the fan (4) and the three-way valve (41).

6. The liquid filtering device according to claim 1, characterized in that the side of the connecting rib (15) close to the inner wall of the filtering box (1) is provided with a cleaning brush (16).

7. A liquid filtration device according to claim 3, wherein the filter layer (11012) is a filter screen or a filter membrane.

8. A liquid filtering device according to claim 3, characterized in that the aperture of the through-hole at the inner wall of the support housing (11013) is smaller than the aperture at the outer wall.