CN216457310U

CN216457310U - Back-flushing filter

Info

Publication number: CN216457310U
Application number: CN202122565615.7U
Authority: CN
Inventors: 秦炎; 俞林琪; 孙凯乾
Original assignee: Wuxi Aosiweite Technology Co ltd
Current assignee: Wuxi Aosiweite Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-05-10
Anticipated expiration: 2031-10-25

Abstract

The utility model provides a backwashing filter, which comprises a first pipeline and a second pipeline, wherein the two ends of the first pipeline are provided with a port B and a port D, the two ends of the second pipeline are provided with a port A and a port C, the port A and the port B are connected with a water inlet pipeline and a water outlet pipeline, the port C and the port D are communicated with a water inlet and a water outlet of a filtered object, a first two-way ball valve is arranged on the first pipeline close to the port B, the first pipeline is communicated with the second pipeline through a connecting pipe, a three-way ball valve is arranged at the connecting part of the connecting pipe and the second pipeline, a filter is arranged between the port C and the three-way ball valve on the second pipeline, a filter element is arranged inside the filter, a liquid outlet of the filter is connected with the end of a third pipeline, the tail end of the third pipeline is provided with a port E, and a second two-way ball valve is arranged between the port E and the outlet of the filter. It has reduced the usage space, has reduced the frequency of unpicking and washing the filter core by a wide margin, has practiced thrift manpower and materials on the whole. The back flushing process only needs several seconds to more than ten seconds, and is convenient, simple and reliable.

Description

Back-flushing filter

Technical Field

The utility model relates to a back-flushing filter, which is mainly applied to open and sealed cooling water systems and is a straight-through filter for filtering polluted impurities in pipelines.

Background

In modern industry, large-scale or medium-and-small-scale cooling water systems are arranged in various large occasions, and the cooling requirements of various equipment, such as a central air conditioning system, a large-scale hydraulic system, a laboratory and the like, are met, and the cooling water systems are indispensable because of continuous operation, a large amount of microorganisms and impurities are generated in pipelines, and the microorganisms and the impurities come from the inner parts and the outer parts of the pipelines, so that the effects of cooling water are influenced, the cooling effect of the equipment is poor, the pipelines are blocked, and the problems of pipeline cleaning, maintenance and the like are solved directly because the pipelines are complicated and have long working distance.

To solve this problem, a filter is generally used as the water treatment. Although the filter medium is used for suspending solids in water, the filter medium has a good effect, but has some defects.

Existing filters, such as bag filters: the filter bag cleaning device has the advantages that sundries in the bag need to be cleaned regularly, the filter bag is low in cost and can be reused after cleaning, cleaning is troublesome, the filter bag is easy to damage after being cleaned for many times, the filter bag is easy to damage after the pressure is slightly high, the filtering effect is lost, the falling filter bag part can block a pipeline, the filter bag needs to be replaced frequently, cleaning and replacement are frequent, and a large amount of maintenance cost is increased.

The front filter is made of a stainless steel material, and the filter element is also made of stainless steel, so that the filter is good in durability, easy to block and also needs to be frequently disassembled to be cleaned and maintained.

SUMMERY OF THE UTILITY MODEL

The utility model solves the defects of the filtering system, changes the flow direction of cooling water on the basis of the pre-filter, provides a water cooling system which utilizes the water pressure of inlet water to flush impurities on a filter element and discharge the impurities, has very simple working principle and structure, very low cost and small occupied space, and greatly reduces the maintenance frequency, time and workload of the water system.

The purpose of the utility model is realized as follows:

the back-washing filter comprises a first pipeline and a second pipeline, wherein a port B and a port D are arranged at two ends of the first pipeline, a port A and a port C are arranged at two ends of the second pipeline, the port A and the port B are connected with a water inlet pipeline and a water outlet pipeline, the port C and the port D are communicated with a water inlet and a water outlet of a filtered object, a first two-way ball valve is arranged at a position, close to the port B, of the first pipeline, the first pipeline is communicated with the second pipeline through a connecting pipe, a three-way ball valve is arranged at the connecting position of the connecting pipe and the second pipeline, a filter is further arranged between the port C and the three-way ball valve in the second pipeline, a filter element is arranged inside the filter, a liquid outlet of the filter is connected with the end of the third pipeline, a port E is arranged at the tail end of the third pipeline, and a second two-way ball valve is arranged between the port E and the outlet of the filter.

Preferably, the backflush filter, in normal use: the three-way ball valve is closed, the first two-way ball valve is opened, the second two-way ball valve is closed, water passes through the three-way ball valve from the port A to the filter, the water is firstly filtered by the filter element outside the filter, enters the port C from the filter element after being filtered, then enters the filtered object, then flows out from the filtered object to the port D, and finally flows out from the port B.

Preferably, the backwash filter is, during backwash: the three-way ball valve is opened, the first two-way ball valve is closed, the second two-way ball valve is opened, water enters the three-way ball valve from the port A to the port D to enter the filtered object, flows to the port C from the filtered object and then enters the filter, the water is firstly washed outwards from the inside of the filter element in the filter element of the filter, impurities outside the filter element are discharged from the port E to the third pipeline.

Preferably, the filter element is made of stainless steel.

Preferably, the E port is a water discharge port.

The utility model has the advantages that:

1. the device consists of a plurality of simple standard parts (a two-way ball valve, a three-way ball valve and a filter), can be connected in series inside an equipment pipeline and can also be hung at an inlet and an outlet of the equipment pipeline, and the device has various installation modes and small occupied space.

2. The filter element of the filter is made of stainless steel, and the service life is long.

3. The back washing process only needs several seconds to ten seconds, is convenient and simple, and does not need to disassemble and clean the filter element of the filter in a short time.

4. Easy dismounting, all part interfaces all adopt ready-package standard component.

5. The assembly is simple and reliable, and the maintenance is economical and convenient.

Drawings

FIG. 1 is a schematic structural view of a backwash filter of the present invention.

Fig. 2 is a schematic structural view of the filter of fig. 1.

Wherein: the device comprises a first pipeline 1, a second pipeline 2, a first two-way ball valve 3, a connecting pipe 4, a three-way ball valve 5, a filter 6, a filter element 7, a three-way ball valve 3, a third pipeline 8 and a second two-way ball valve 9.

Detailed Description

Referring to fig. 1 and 2, the utility model relates to a backwashing filter, which is based on a preposed filter and comprises a first pipeline 1 and a second pipeline 2, wherein the two ends of the first pipeline 1 are provided with a port B and a port D, the two ends of the second pipeline 2 are provided with a port A and a port C, the port A and the port B are connected with a water inlet pipeline and a water outlet pipeline, and the port C and the port D are communicated with a water inlet and a water outlet of a filtered object.

First pipeline 1 is close to B mouth department and is provided with first two ball valve 3, through connecting pipe 4 intercommunication between first pipeline 1 and the second pipeline 2, three-way ball valve 5 is being equipped with second pipeline 2 junction to connecting pipe 4, second pipeline 2 still is equipped with a filter 6 between C mouth and three-way ball valve 5, the inside of filter 6 is filter core 7, filter core 7 is stainless steel, the liquid outlet of filter 6 links to each other with third pipeline 8's end, and third pipeline 8's end is the E mouth, and the E mouth is the outlet, installs second two ball valve 9 between the export of E mouth and filter 6.

Backwash filter in normal use (non-backwash): the tee bend ball valve is closed (AC leads to, AD does not lead to), and first two-way ball valve is opened (BD leads to), and the second two-way ball valve is closed (6E is obstructed), and water passes through the tee bend ball valve to the filter from A mouth, and water filters through the filter core at the filter outside first, gets into C mouth from the filter core after filtering, reentrant filtered article, then goes out to the D mouth through filtered article, flows out from B mouth at last.

During backwashing of the backwashing filter: the tee bend ball valve is opened (AC is not expert, AD leads to), and first two-way ball valve is closed (BD is obstructed), and the second two-way ball valve is opened (6E leads to), and water enters into from A mouth through the tee bend ball valve to D mouth and is filtered the article, flows to C mouth from being filtered the article, reentrant filter, and water washes away from the filter core is inside outwards in the filter core at first in the filter core of filter, follows the third pipeline with the outer impurity of filter core in, discharges from E mouth at last.

Therefore, normal filtration and impurity cleaning of the filter can be simply finished, the working principle and the structure are very simple, the cost is very low, the occupied space is small, and the maintenance frequency, time and workload of the water system are greatly reduced.

Claims

1. The back flush filter, its characterized in that: the filter comprises a first pipeline and a second pipeline, wherein the two ends of the first pipeline are provided with a port B and a port D, the two ends of the second pipeline are provided with a port A and a port C, the port A and the port B are connected with a water inlet pipeline and a water outlet pipeline, the port C and the port D are communicated with a water inlet and a water outlet of a filtered object, the first pipeline is provided with a first two-way ball valve close to the port B, the first pipeline is communicated with the second pipeline through a connecting pipe, the connecting pipe is provided with a three-way ball valve at the joint of the first pipeline and the second pipeline, the second pipeline is further provided with a filter between the port C and the three-way ball valve, the inside of the filter is a filter element, the liquid outlet of the filter is connected with the end of the third pipeline, the tail end of the third pipeline is provided with a port E, and the second two-way ball valve is arranged between the port E and the outlet of the filter.

2. The backflush filter of claim 1, wherein: when the backwashing filter is in normal use: the three-way ball valve is closed, the first two-way ball valve is opened, the second two-way ball valve is closed, water passes through the three-way ball valve from the port A to the filter, the water is firstly filtered by the filter element outside the filter, enters the port C from the filter element after being filtered, then enters the filtered object, then flows out from the filtered object to the port D, and finally flows out from the port B.

3. The backflush filter of claim 1, wherein: during backwashing of the backwashing filter: the three-way ball valve is opened, the first two-way ball valve is closed, the second two-way ball valve is opened, water enters the three-way ball valve from the port A to the port D to enter the filtered object, flows to the port C from the filtered object and then enters the filter, the water is firstly washed outwards from the inside of the filter element in the filter element of the filter, impurities outside the filter element are discharged from the port E to the third pipeline.

4. The backflush filter of claim 1, wherein: the filter element is made of stainless steel.

5. The backflush filter of claim 1, wherein: the E port is a water outlet.