CN217662027U

CN217662027U - External pressure type large-flux cartridge filter element cleaning and testing device

Info

Publication number: CN217662027U
Application number: CN202220722926.1U
Authority: CN
Inventors: 曹宏伟; 侯玉琳; 聂明; 王明珠; 刘向朝; 王艺林
Original assignee: Tianjin Zhengda Science & Technology Co ltd; CNOOC Tianjin Chemical Research and Design Institute Co Ltd
Current assignee: Tianjin Zhengda Science & Technology Co ltd; CNOOC Tianjin Chemical Research and Design Institute Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-10-28
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses an external pressure type high flux cartridge filter core washs testing arrangement. The device comprises a security filter body, a cleaning pump and a cleaning box, wherein the security filter body comprises a cavity A and a cavity B which are connected through a communicating pipeline, the cavity A is provided with a filter element supporting framework for fixing a filter element, the filter element supporting framework corresponds to the communicating pipeline one by one, the communicating pipeline is provided with a filter element water production shut-off valve, and is also provided with a forward washing backflow port and a backwashing backflow port, and the bottom of the filter element is tightly connected with the bottom of the cavity A through the compaction effect of a filter element pressing plate, so that the cavity A is completely isolated from the cavity B and the inner side of the filter element; the cavity B is communicated with the inner side of the filter element through a short communication pipe; and a detection interface is reserved on a connecting pipeline between the liquid outlet and the cleaning box. The utility model discloses the device can carry out just, reverse chemical cleaning to many filter cores simultaneously to have two kinds of cleaning methods of full flow, cross-flow, also can be as required, just, reverse cleaning and performance detection are carried out to single filter core.

Description

External pressure type large-flux cartridge filter element cleaning and testing device

Technical Field

The utility model belongs to the water treatment facilities field relates to a big flux security personnel filter core of external pressure type washs testing arrangement.

Background

Reverse osmosis technology is widely used in the field of water treatment, and has extremely high requirements on the cleanness of inlet water. In practical application, a security filter is usually arranged at the water inlet end of the RO system, and a high-precision high-flux filter element filled in the security filter is used for filtering. In the use process, necessary chemical cleaning is required to be carried out on the polluted filter element in time, the intercepted pollutants are effectively removed, and the flux of the pollutants is recovered, so that the aims of reusing the filter element and reducing the operation cost are fulfilled.

The existing filter element cleaning device can only realize one-way and full-flow integral cleaning, can not realize cross-flow cleaning and can not carry out independent cleaning and testing on a certain filter element. Because the pollution blocking condition of each filter element is possibly different, the ideal cleaning effect cannot be achieved by unidirectional integral cleaning.

Disclosure of Invention

In order to carry out necessary chemical cleaning to the big flux filter core that has polluted, overcome one-way whole abluent not enough, resume its flux, realize used repeatedly's purpose, the utility model provides a big flux security filter core of external pressure type washs testing arrangement, the device can carry out just, reverse chemical cleaning to many filter cores simultaneously to have full flow, two kinds of washing modes of cross-flow, also can be as required, through valve control, just, reverse washing and performance detection to single filter core.

The utility model discloses realize above-mentioned purpose through following technical scheme specifically.

The utility model provides an external pressure type high flux security filter element cleaning test device, including the security filter body that is equipped with the filter core screens inside, be equipped with inlet and liquid outlet on the security filter body, the inlet link to each other with the scavenging pump, the liquid outlet connect and wash the case and link to each other, the filter core screens link to each other with filter core support skeleton, wherein, the security filter body include A cavity and B cavity through the intercommunication pipeline link to each other, the intercommunication pipeline with filter core support skeleton one-to-one and be linked together, install filter core water production trip valve on the intercommunication pipeline to realize the individual washing and the test of filter core; the cavity A and the cavity B are respectively provided with a backwashing backflow port and a forward washing backflow port so as to realize cross-flow cleaning of the filter element; a pipeline for connecting the liquid inlet with the cleaning pump is provided with a forward washing liquid inlet valve, a pipeline for connecting the liquid outlet with the cleaning pump is provided with a backward washing liquid inlet valve, a pipeline for connecting the liquid outlet with the cleaning box is provided with a forward washing liquid outlet valve, and a pipeline for connecting the liquid inlet with the cleaning box is provided with a backward washing liquid outlet valve; the filter element clamp position is provided with a filter element pressing plate, so that a filter element is tightly connected with the bottom of the cavity A, and the cavity A is completely isolated from the cavity B and the inner side of the filter element; meanwhile, the cavity B is communicated with the inner side of the filter element through a communicating pipeline; the liquid outlet with wash the connecting tube between the case and reserve and have the detection interface for connect SDI testing arrangement, detect the play water quality of water of filter core.

External pressure type high flux cartridge filter core wash testing arrangement, wherein the filter core produce water trip valve and communicate the pipeline and prefer to be connected through the flange.

External pressure type high flux cartridge filter core washs testing arrangement, wherein the preferred 2 of quantity of scavenging pump, the flow that one of them scavenging pump was suitable for carries out the lectotype according to the device quantity of wasing the filter core simultaneously, another scavenging pump is applicable to the washing of single filter core.

External pressure type high flux cartridge filter cartridge washs testing arrangement, wherein preferred the flow of scavenging pump be 25 ~ 40m ³ The delivery lift is 20-35 m.

External pressure type high flux cartridge filter core washs testing arrangement, scavenging pump outlet pipe on be provided with the flowmeter for read the filtration flow of filter core, with the detection cleaning performance.

The utility model relates to an external pressure type large flux security filter element cleaning and testing device, which has small volume, adopts a pressing plate to fix the filter element, is simple and convenient to install and use, controls the inlet and outlet direction of cleaning liquid by switching the valve, and can realize the forward and reverse washing functions of the filter element; meanwhile, the filter element cross-flow cleaning device is provided with a forward-washing backflow port and a reverse-washing backflow port, and can realize the switching of the filter element cross-flow cleaning mode and the full-flow cleaning mode at the same time of forward washing and reverse washing through valve control, so that the cleaning effect is improved. After cleaning, the filter core flux can be recovered to a certain degree by detecting the running pressure difference and the water outlet SDI and combining with a water production cut-off valve on a communicating pipeline between A, B chambers to carry out function test on a single or a plurality of appointed filter cores, so that the reuse of the filter cores is realized, and the running cost of the system is effectively reduced.

Compared with the prior art, the utility model discloses there is following technical characterstic:

1) The device of the utility model has the advantages of exquisite design, small volume and simple and convenient installation and use.

2) The utility model discloses the device possesses just, backwash function and dead end full flow, two kinds of cleaning methods of cross-flow of filter core, possesses the washing and the test function of single filter core simultaneously, can carry out whole and single just, reverse chemical cleaning and the performance detection of single filter core to polluting the filter core, and the cleaning performance is good, resumes its flux to a certain extent, realizes the reuse of filter core, has effectively reduced the running cost of system.

3) The utility model discloses the device is furnished with positive washing backward flow mouth and backwash backward flow mouth, can realize two kinds of cleaning modes of full flow and cross-flow, can effectively improve the cleaning performance.

4) The device is suitable for external pressure type large-flux filter elements, the pressing plates are adopted for fixing, and the filter elements are simple and quick to mount and dismount.

Drawings

Fig. 1 is a schematic front view of the cleaning and testing device for the filter element of the external pressure type high flux security filter of the present invention;

FIG. 2 is a schematic side view of the external pressure high throughput canister filter cartridge cleaning and testing apparatus of FIG. 1;

fig. 3 is a sectional view of the communication channel of the device of the present invention (this view is taken to illustrate the installation of 2 filter elements).

Wherein, 1, a liquid inlet; 2. a liquid outlet; 3. a forward washing reflux port; 4. backwashing the reflux port; 5. an elliptical end enclosure; 6. a filter element support framework; 7. a filter element water production cut-off valve; 8. a water inlet baffle plate; 9. a liquid inlet pressure gauge; 10. a liquid outlet pressure gauge; 11. a boom; 12. a filter element pressing plate; 13. an exhaust port; 14. 1# cleaning pump; 15. 2# cleaning pump; 16. a cleaning tank; 17. a water inlet valve of a No. 1 cleaning pump; 18. a water inlet valve of a No. 2 cleaning pump; 19. a forward washing liquid inlet valve; 20. backwashing the liquid inlet valve; 21. a positive washing liquid outlet valve; 22. backwashing the liquid outlet valve; 23. a support leg; 24. a communicating pipe; 25. a forward wash return valve; 26. and (4) backwashing the reflux valve.

Detailed Description

The present invention will be further described with reference to the following embodiments and accompanying drawings.

As shown in the attached figure 1, the cleaning and testing device for the cartridge filter element of the cartridge filter is divided into a chamber A and a chamber B, wherein the chamber A and the chamber B are connected through a pipeline of DN200 and a matched valve and comprise a liquid inlet 1; a liquid outlet 2; a forward washing reflux port 3; a backwashing backflow port 4; an elliptical head 5; a filter element support framework 6; a filter element water production cut-off valve 7; a water inlet baffle plate 8; a liquid inlet pressure gauge 9; a liquid outlet pressure gauge 10; a boom 11; a cartridge press plate 12; an exhaust port 13;1# washer pump 14; a # 2 washer pump 15; a cleaning tank 16; a No. 1 cleaning pump water inlet valve 17; a 2# cleaning pump water inlet valve 18; a forward washing liquid inlet valve 19; backwashing the liquid inlet valve 20; a positive washing liquid outlet valve 21; a backwash liquid outlet valve 22; legs 23; a communication duct 24; a forward wash return valve 25; backwash return valve 26.

The filter element is cleaned in a forward (i.e. the cleaning liquid flows from the outer side to the inner side of the filter element) circulating way: the elliptical seal head 5 is opened, a filter element to be cleaned is sleeved on the filter element supporting framework 6, then the filter element is fixed by using the filter element pressing plate 12, the upper end surface and the lower end surface of the filter element are sealed by O-shaped rings, and the inner side space and the outer side space of the filter element can be completely separated. When the filter element cleaning device is used, cleaning liquid with a certain concentration is prepared in the cleaning box 16, the No. 1 cleaning pump 14 or the No. 2 cleaning pump 15 is started (determined according to the cleaning quantity of filter elements), the forward cleaning liquid inlet valve 19 is opened, the forward cleaning liquid outlet valve 21, the Guan Fanxi liquid inlet valve 20 and the Guan Fanxi liquid outlet valve 22 are opened. Cleaning liquid is dispersed by the water inlet baffle 8 from the liquid inlet 1 and then enters the cavity A, after the cleaning liquid is gradually filled in the cavity A, the cleaning liquid is pressed to the inner side of the filter element from the outer side of the filter element under the action of pressure, and round holes with the diameter of 10mm are uniformly distributed on the surface of the filter element supporting framework 6, so that the cleaning liquid can enter the inner side of the filter element and then enter the filter element supporting framework 5 through the round holes with the diameter of 10 mm; then the water enters a cavity B of the cleaning device through a communication pipeline 24 and a filter element water production stop valve 7 between A, B cavities, finally flows back to the cleaning box 16 through the liquid outlet 2, and is cleaned circularly, so that the forward cleaning of the filter element is realized. During the initial period of operation, the chambers a and B are filled with water, and exhaust can be performed using the exhaust port 13. During the cleaning process, a full-flow or cross-flow cleaning mode can be selected according to the pressure and the flow of the inlet and the outlet of the device. The cross-flow cleaning is realized by adjusting the opening of the forward washing reflux valve 25 to adjust the reflux quantity, and the reflux liquid returns to the cleaning tank 16 through a pipeline.

Reverse (i.e. cleaning liquid flows from the inner side to the outer side of the filter element) circulation cleaning of the filter element: during reverse cleaning, cleaning liquid with a certain concentration is prepared in the cleaning tank 16, the No. 1 cleaning pump 14 or the No. 2 cleaning pump 15 is started (determined according to the cleaning quantity of filter elements), the backwashing liquid inlet valve 20 is opened, and the backwashing liquid outlet valves 22, guan Zhengxi liquid inlet valve 19 and Guan Zhengxi liquid outlet valve 21 are opened. Cleaning liquid enters the cavity B from the liquid outlet 2, then enters the cavity A through the communicating pipeline 24 between the A, B cavities and the filter element water production stop valve 7, then flows from the inner side to the outer side of the filter element through the round hole with the diameter of 10mm on the surface of the filter element supporting framework 6, is collected in the cavity A, returns to the cleaning box through the liquid inlet 1 and the liquid inlet, and is circularly cleaned, so that the reverse cleaning of the filter element is realized. During the initial period of operation, the chambers a and B are filled with water, and exhaust can be performed using the exhaust port 12. During the cleaning process, a full-flow or cross-flow cleaning mode can be selected according to the pressure and the flow of the inlet and the outlet of the device. The cross-flow cleaning is realized by adjusting the opening of the backwashing reflux valve 26 to adjust the reflux quantity, and the reflux liquid returns to the cleaning tank 16 through a pipeline.

Cleaning and detecting a single filter element: the quantity of filter core product water trip valve 7 corresponds with the quantity one-to-one of filter core support chassis 6, if only wash and detect single filter core, can only open the product water trip valve that this filter core support chassis corresponds, keeps all the other trip valves to be the closed condition simultaneously. When the filter element is detected, clean water is injected into the cleaning box 16, the flow is the same as the forward cleaning flow, but the forward cleaning reflux valve 25 is kept in a closed state. Whether the cleaning effect of the filter element meets the requirements or not is judged by detecting the inlet pressure, the outlet water SDI and the produced water flow during operation.

The function of the water inlet baffle 7 is to avoid damage to the filter element caused by water flow impact.

The outer diameter of the filter element supporting framework 6 is slightly smaller than the inner diameter of the filter element, and the length of the filter element supporting framework is also slightly shorter than the length of the inside of the filter element, so that the filter element can be completely sleeved, and the filter element supporting framework plays a role in supporting when being cleaned in the forward direction.

And the liquid inlet pressure gauge 9 and the liquid outlet pressure gauge 10 are used for reading the operation pressure during the circulation cleaning. Flow meters with different ranges are respectively arranged on the outlet pipelines of the No. 1 cleaning pump 14 and the No. 2 cleaning pump 15 and are used for reading corresponding circulating flow rates when filter elements with different cleaning quantities are cleaned.

When the circulation cleaning is carried out, if a full-flow cleaning mode is selected, the forward cleaning reflux valve 25 and the reverse cleaning reflux valve 25 are required to be closed; a backwash return valve 26; if the cross-flow cleaning mode is selected, the forward cleaning reflux valve 25 needs to be opened and the reverse cleaning reflux valve 26 needs to be closed during forward cleaning; during reverse cleaning, the forward-wash return valve 26 is opened, and the reverse-wash return valve 25 is closed.

Claims

1. The external pressure type large-flux security filter element cleaning and testing device is characterized in that the security filter body comprises a cavity A and a cavity B which are connected through a communicating pipeline, the communicating pipeline is in one-to-one correspondence and communicated with the filter element supporting framework, and a filter element water production cut-off valve is installed on the communicating pipeline; the cavity A and the cavity B are respectively provided with a backwashing backflow port and a forward washing backflow port; a forward washing liquid inlet valve is arranged on a pipeline connecting the liquid inlet and the cleaning pump, a back washing liquid inlet valve is arranged on a pipeline connecting the liquid outlet and the cleaning pump, a forward washing liquid outlet valve is arranged on a pipeline connecting the liquid outlet and the cleaning box, and a back washing liquid outlet valve is arranged on a pipeline connecting the liquid inlet and the cleaning box; the filter element clamp position is provided with a filter element pressing plate, so that a filter element is tightly connected with the bottom of the cavity A, and the cavity A is completely isolated from the cavity B and the inner side of the filter element; the cavity B is communicated with the inner side of the filter element through a communicating pipeline; a detection interface is reserved on a connecting pipeline between the liquid outlet and the cleaning box.

2. The external pressure type high flux cartridge filter cartridge cleaning test device according to claim 1, wherein the cartridge produced water cut-off valve is connected with the communication pipeline through a flange.

3. The external pressure type high flux cartridge filter core cleaning and testing device according to claim 1, wherein the number of the cleaning pumps is 2, wherein the flow rate of one cleaning pump is selected according to the number of the filter cores cleaned by the device, and the other cleaning pump is suitable for cleaning a single filter core.

4. The external pressure type high flux cartridge filter cartridge cleaning test device according to claim 1, wherein the flow rate of the cleaning pump is 25-40 m ³ The delivery lift is 20-35 m.

5. The external pressure type high flux cartridge filter element cleaning and testing device according to claim 3, wherein a flow meter is arranged on the outlet pipeline of the cleaning pump.