CN217092452U

CN217092452U - Liquid filtering device

Info

Publication number: CN217092452U
Application number: CN202122821189.9U
Authority: CN
Inventors: 蒋赫; 陈大明; 回大林; 孙智慧; 丁学东; 王怀勇; 刘洪博; 李振友; 席庆宇; 张永军; 杨晓海; 张锦峰; 侯越川; 黄志强
Original assignee: Changchun Thermal Power Plant Of Huaneng Jilin Power Generation Co ltd
Current assignee: Changchun Thermal Power Plant Of Huaneng Jilin Power Generation Co ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-08-02
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a liquid filtering device, including the main filtration ware, main filtration ware one side intercommunication has higher level to come water, set the main filtration ware inlet valve between main filtration ware and the higher level water of coming, main filtration ware opposite side intercommunication has the reverse osmosis layer, the main filtration ware opposite side still communicates there is the secondary filter, the higher level of secondary filter intercommunication comes water, set the secondary filter inlet valve between secondary filter and the higher level water of coming, set the secondary filter outlet valve between secondary filter and the reverse osmosis layer, the intercommunication has recovery tank on the main filtration ware, the main filtration ware opposite side still communicates there is the washing water pump, washing water pump intercommunication running water. The problem of the filter core replacement volume that exists among the prior art big is solved.

Description

Liquid filtering device

Technical Field

The utility model belongs to the technical field of liquid filter, a liquid filter equipment is related to.

Background

The filter element type liquid filter is a novel multifunctional filter, which consists of two parts: filters and filter elements. Has been widely applied to liquid purification of water, oil, paint and the like and solid-liquid separation in the industries of machinery, metallurgy, chemical industry, textile, printing and dyeing, electroplating, medicine, food and the like. With the rapid development of the industrial industry in China, the filter element type liquid filter of the power generation enterprise is widely applied to ultrafiltration backwashing equipment, reverse osmosis preposed security filtration and backwashing security equipment.

At present, although the technology of chemical circulation online cleaning of the dirt blocking filter element is provided in China, the operation mode can also cause various problems of environment pollution, high chemical cost, waste of electric energy and high maintenance cost due to continuous operation of a cleaning circulating pump, complex control system, easy failure, secondary waste of water resource and the like caused by improper wastewater treatment. The filter element filter material will be corroded and modified to different degrees in the medicament cleaning process, so the replacement amount of the filter element is still large, the dirt is blocked frequently, and the effective filtering precision of the filter element is difficult to ensure. For the reasons, the chemical circulation online cleaning technology is not widely applied to power generation enterprises in China.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a liquid filtering device has solved the big problem of filter core replacement volume that exists among the prior art.

The utility model discloses the technical scheme who adopts is, liquid filter equipment, including the main filtration ware, main filtration ware one side intercommunication has higher level to come water, main filtration ware and higher level have set the main filtration ware inlet valve between coming water, main filtration ware opposite side intercommunication has the reverse osmosis layer, the main filtration ware opposite side still communicates there is the secondary filter, secondary filter intercommunication higher level comes water, secondary filter inlet valve has been set between secondary filter and the higher level of coming water, secondary filter outlet valve has been set between secondary filter and the reverse osmosis layer, the last intercommunication of main filtration ware has the recovery tank, the main filtration ware opposite side still communicates there is the washing water pump, washing water pump intercommunication running water.

The utility model discloses a characteristics still lie in:

a main filter outlet valve is arranged between the main filter and the reverse osmosis layer.

A main filter cleaning drain valve is arranged between the main filter and the recovery water tank.

The recovery water tank is provided with a recovery water tank liquid level meter, the recovery water tank is communicated with a recovery water pump, the recovery water pump is communicated with an original water supply system, a recovery water pump outlet valve is arranged between the recovery water pump and the original water supply system, and a recovery water pump inlet valve is arranged between the recovery water pump and the recovery water tank.

A washing water pump outlet valve is arranged between tap water and the washing water pump, and a washing water pump inlet valve is arranged between the main filter and the washing water pump.

The cleaning water pump, the recovery water pump, the main filter inlet valve, the auxiliary filter outlet valve, the main filter cleaning drain valve, the auxiliary filter drain valve, the recovery water tank liquid level meter, the recovery water pump outlet valve, the recovery water pump inlet valve, the cleaning water pump outlet valve, the cleaning water pump inlet valve and the auxiliary filter inlet valve are all connected with the controller.

And a drainage valve of the auxiliary filter is arranged on the auxiliary filter and is communicated with the recovery water tank.

The utility model has the advantages that: the utility model discloses liquid filter equipment has solved the big problem of filter core replacement volume that exists among the prior art. The water source is used and is taken from the device itself, and any medicament is not added in the overall process, so that expensive cleaning medicament is saved, the operation cost is reduced, meanwhile, medicament-containing waste water is not generated, the risk of secondary pollution to the environment due to improper waste water treatment is avoided, and the risk of damaging the filter body and hurting personnel due to medicament corrosivity is avoided. Because of not using any additional medicament, avoid because of the medicament corrosivity, cause the medicament to wash the in-process to corrode the filter media, change its mechanical properties and increase the condition emergence of filter fineness, also can get rid of the pollution jam that medicine granule itself caused the filter core simultaneously. The self-cleaning process is single one-way flushing, and the circulating process is not involved, so the running time of the cleaning water pump is short, and the purpose of energy conservation is achieved. The control system is simple and the cost is low. From the blowdown water after the washing, quality of water accords with the requirement that the filter higher level handled the water source completely, "waste water" is deposited in the recovery water tank, and the liquid level reachs the system requirement after, through the recovery water pump, is used for higher level system water supply completely, and the complete zero release of overall process is furthest water economy resource.

Drawings

Fig. 1 is a schematic structure of the liquid filtering apparatus of the present invention.

In the figure, 1, a main filter, 2, a main filter inlet valve, 3, a main filter outlet valve, 4, a main filter cleaning drain valve, 5, a recovery water tank, 6, a recovery water tank liquid level meter, 7, a recovery water pump inlet valve, 8, a recovery water pump, 9, a recovery water pump outlet valve, 10, a cleaning water pump, 11, a cleaning water pump inlet valve, 12, a cleaning water pump outlet valve, 13, a secondary filter, 14, a secondary filter inlet valve, 15, a secondary filter outlet valve, 16, a secondary filter drain valve and 17, a controller.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses liquid filtering device, as shown in fig. 1, including main filter 1, main filter 1 one side intercommunication has higher level to come water, main filter 1 and higher level have set main filter inlet valve 2 between coming water, main filter 1 opposite side intercommunication has reverse osmosis layer, main filter 1 opposite side still communicates secondary filter 13, secondary filter 13 communicates higher level to come water, secondary filter 13 and higher level have set secondary filter inlet valve 14 between coming water, secondary filter 13 and reverse osmosis layer have set secondary filter outlet valve 15, main filter 1 goes up the intercommunication has recovery tank 5, main filter 1 opposite side still communicates there is cleaning water pump 10, cleaning water pump 10 communicates the running water. A main filter outlet valve 3 is arranged between the main filter 1 and the reverse osmosis layer. A main filter cleaning drain valve 4 is disposed between the main filter 1 and the recovery water tank 5. The sub-filter 13 is provided with a sub-filter drain valve 16, and the sub-filter drain valve 16 is communicated with the recovery water tank 5. The recovery water tank 5 is provided with a recovery water tank liquid level meter 6, the recovery water tank 5 is communicated with a recovery water pump 8, the recovery water pump 8 is communicated with an original water supply system, a recovery water pump outlet valve 9 is arranged between the recovery water pump 8 and the original water supply system, and a recovery water pump inlet valve 7 is arranged between the recovery water pump 8 and the recovery water tank 5. A cleaning water pump outlet valve 12 is provided between the tap water and the cleaning water pump 10, and a cleaning water pump inlet valve 11 is provided between the main filter 1 and the cleaning water pump 10. The cleaning water pump 10, the recovery water pump 8, the main filter inlet valve 2, the sub-filter outlet valve 15, the main filter outlet valve 3, the main filter cleaning drain valve 4, the sub-filter drain valve 16, the recovery tank level gauge 6, the recovery water pump outlet valve 9, the recovery water pump inlet valve 7, the cleaning water pump outlet valve 12, the cleaning water pump inlet valve 11, and the sub-filter inlet valve 14 are all connected to the controller 17.

The utility model discloses liquid filter equipment, when normal operating, all should be equipped with model, the identical filter core of precision in main filter 1 and the secondary filter 2, and main filter 1 is in user state when normal operating, and secondary filter 2 is then for online reserve.

The states of each device and valve are as follows: the inlet valve 2 and the outlet valve 3 of the main filter are in an open state, and the rest valves and the water pump are closed and stopped.

When the operation pressure difference of the main filter 1 reaches or exceeds 0.1MPa, the filter is flushed on line so as to achieve the purpose of recovering the flux of the filter element, thereby reducing the operation pressure difference of the filter to a normal value and enabling the filter to be repeatedly used. The on-line washing steps of the filter are as follows:

operation state switching of main filter and auxiliary filter

When the operating differential pressure of the main filter 1 reaches or exceeds 0.1MPa, the sub-filter inlet valve 14 and the sub-filter outlet valve 15 are opened. After the valves were opened for about 20 seconds, the main filter outlet valve 3 and the main filter inlet valve 2 were closed. Higher level's incoming water will pass through secondary filter 13 this moment, the utility model relates to a liquid filter equipment continues reliable operation.

Main filter cleaning process

Cleaning water pump inlet valve 11, cleaning water pump outlet valve 12, main filter cleaning row

The water valve 4 is opened and the cleaning water pump 10 is started to wash the main filter. The source of the cleaning water is the lower-stage produced water of the filter, and the cleaning drainage water is discharged to the recovery water tank 5.

Main filter back cut process

After the washing water pump 4 operates for 5min, stopping operating the washing water pump, and then closing the main filter washing drain valve 4, the washing water pump outlet valve 12 and the washing water pump inlet valve 11 successively; after opening main filter inlet valve 2 and main filter outlet valve 3, 20s, close vice filter inlet valve 14 and vice filter outlet valve 15, the utility model relates to a liquid filter equipment restores to have the state.

Process for recovery of wash water

The utility model discloses during the liquid filtering device operation, 5 liquid levels of recovery tank are supervised constantly to recovery tank level gauge 6, and when the liquid level reached the setting value upper limit in recovery tank 5, will retrieve water pump inlet valve 7, retrieve water pump outlet valve 9 and open one by one, start recovery water pump 8, will wash the drainage and fully retrieve as the raw water, reach the purpose of zero release. When the liquid level of the recovery water tank 5 reaches the lower limit, the operation of the recovery water pump 8 is stopped, and the inlet and outlet valves thereof are closed.

The utility model discloses liquid filter equipment's all valves and water pump control carry out automated control by integrated control box 17, need not artificial intervention. When the filter element in the auxiliary filter 13 is blocked, the filter element can be replaced in the main filter for washing.

The utility model relates to an even stainless steel of liquid filter equipment inner tube way, valve, water pump makes it can not cause secondary pollution and safe and reliable in the use, avoids leakage and corrosion phenomenon to produce.

The filter element of the filter is dirty and blocked, the system can be automatically cleaned under the condition that follow-up operation is not influenced, various medicines are not required to be added in the cleaning process, the discharged water generated by cleaning is recycled to superior equipment, zero wastewater discharge is realized, the service life of the filter element is prolonged to the maximum extent under the condition of low carbon, energy conservation and emission reduction, and the cost is saved.

The utility model discloses liquid filter equipment has solved the big problem of filter core replacement volume that exists among the prior art. The water source is used and is taken from the device itself, and any medicament is not added in the overall process, so that expensive cleaning medicament is saved, the operation cost is reduced, meanwhile, medicament-containing waste water is not generated, the risk of secondary pollution to the environment due to improper waste water treatment is avoided, and the risk of damaging the filter body and hurting personnel due to medicament corrosivity is avoided. Because of not using any additional medicament, avoid because of the medicament corrosivity, cause the medicament to wash the in-process to corrode the filter media, change its mechanical properties and increase the condition emergence of filter fineness, also can get rid of the pollution jam that medicine granule itself caused the filter core simultaneously. The self-cleaning process is single one-way flushing, and the circulating process is not involved, so the running time of the cleaning water pump is short, and the purpose of energy conservation is achieved. The control system is simple and the cost is low. From the blowdown water after the washing, quality of water accords with the requirement that the filter higher level handled the water source completely, "waste water" is deposited in the recovery water tank, and the liquid level reachs the system requirement after, through the recovery water pump, is used for higher level system water supply completely, and the complete zero release of overall process is furthest water economy resource.

Claims

1. The liquid filtering device is characterized by comprising a main filter (1), wherein one side of the main filter (1) is communicated with upper-level incoming water, a main filter inlet valve (2) is arranged between the main filter (1) and the upper-level incoming water, the other side of the main filter (1) is communicated with a reverse osmosis layer, the other side of the main filter (1) is further communicated with an auxiliary filter (13), the auxiliary filter (13) is communicated with the upper-level incoming water, an auxiliary filter inlet valve (14) is arranged between the auxiliary filter (13) and the upper-level incoming water, an auxiliary filter outlet valve (15) is arranged between the auxiliary filter (13) and the reverse osmosis layer, the main filter (1) is communicated with a recovery water tank (5), the other side of the main filter (1) is further communicated with a cleaning water pump (10), and the cleaning water pump (10) is communicated with tap water.

2. Liquid filtering device according to claim 1, characterized in that a main filter outlet valve (3) is provided between the main filter (1) and the reverse osmosis layer.

3. A liquid filtering device according to claim 2, characterized in that a main filter washing drain valve (4) is provided between the main filter (1) and the recovery water tank (5).

4. A liquid filtering device according to claim 3, wherein a secondary filter drain valve (16) is provided on the secondary filter (13), the secondary filter drain valve (16) being in communication with the recovery tank (5).

5. The liquid filtering device according to claim 4, characterized in that the recovery water tank (5) is provided with a recovery water tank level gauge (6), the recovery water tank (5) is communicated with a recovery water pump (8), the recovery water pump (8) is communicated with an original water supply system, a recovery water pump outlet valve (9) is arranged between the recovery water pump (8) and the original water supply system, and a recovery water pump inlet valve (7) is arranged between the recovery water pump (8) and the recovery water tank (5).

6. A liquid filtering device according to claim 5, characterized in that a washing water pump outlet valve (12) is provided between the tap water and the washing water pump (10), and a washing water pump inlet valve (11) is provided between the main filter (1) and the washing water pump (10).

7. A liquid filtration apparatus according to claim 6 wherein the wash water pump (10), the recycle water pump (8), the main filter inlet valve (2), the secondary filter outlet valve (15), the main filter outlet valve (3), the main filter wash drain valve (4), the secondary filter drain valve (16), the recycle tank level gauge (6), the recycle water pump outlet valve (9), the recycle water pump inlet valve (7), the wash water pump outlet valve (12), the wash water pump inlet valve (11), the secondary filter inlet valve (14) are connected to a controller (17).