CN206276075U - A kind of endogenous backwash filter of two valves for water process - Google Patents

Abstract

The utility model provides a two-valve internal source backwash filter, which comprises at least two sets of identical filters, the water inlet branch pipes of each set of filters are connected with the water inlet main pipe, and the water outlet branch pipes are connected with the water outlet main pipe; the filter devices all include Water inlet valve, upper cloth water pipe, filter tank, filter sand layer, water filter cap, clapboard, water outlet branch pipe, water outlet main pipe, backwash valve, water inlet branch pipe and backwash water pipe; one end of the filter tank is connected to the water inlet valve, and the other One end is connected to the water outlet main pipe; the water inlet valve is connected to the water inlet main pipe through the water inlet branch pipe; a backwash water pipe is installed between the water inlet valve and the filter tank, and the backwash valve is installed on the backwash water pipe; the upper water distribution pipe is located in the filter tank The top is connected with the upper water inlet; the clapboard tank body is fixed; the water filter cap is fixedly installed on the clapboard, and the filter sand layer is above the clapboard and the water filter cap; the structure of the two-valve internal backwash filter of the utility model is simple , easy to produce, each filter only uses two valves, low cost; save water and energy consumption, good backwashing effect; can realize automatic operation.

Description

A two-valve internal source backwash filter for water treatment

technical field

The utility model relates to the technical field of water treatment, in particular to a two-valve internal source backwash filter for water treatment.

Background technique

After filtering for a period of time, the water treatment filter needs to be backwashed to wash away the dirt trapped in the filter material. Generally, each filter needs to be equipped with at least 4 valves in the backwashing process to form a switch of the water flow direction to realize the backwashing function. , and need to introduce a clean backwash water source from the outside, equipped with a backwash water pump, most of the filters currently used in the field of water treatment use this method;

The filter using this method needs to be equipped with at least multiple valves, which has complex structure, cumbersome operation, and high cost; the filter needs to be equipped with a backwash water pump and needs an external backwash water source, and the backwash effect is poor, wasting water and energy consumption.

Contents of the invention

The purpose of the utility model is to provide a two-valve internal source backwash filter.

The technical solution to achieve the purpose of this utility model is: a two-valve internal source backwash filter for water treatment, including at least two sets of identical filters, and the water inlet branch pipe of each filter is connected to the water inlet main pipe , the outlet branch pipes are all connected to the water outlet main pipe;

The filtration device of each set of filters includes water inlet valve, upper cloth water pipe, filter tank, filter sand layer, water filter cap, partition, outlet branch pipe, outlet main pipe, backwash valve, water inlet branch pipe and backwash water pipe;

One end of the water inlet of the filter tank is connected to the water inlet valve, and one end of the water outlet is connected to the water outlet main pipe through the water outlet branch pipe; the water inlet valve is located between the filter tank and the water inlet main pipe, and is connected to the water inlet main pipe through the water inlet branch pipe; A backwash water pipe is installed between the water inlet valve and the filter tank, and the backwash valve is installed on the backwash water pipe; the upper cloth water pipe, filter sand layer, water filter cap, and partition are all inside the filter tank The upper water distribution pipe is located at the top of the filter tank and connected to the upper water inlet; the partition is located at the middle and lower part of the tank and is fixedly connected with the tank; the water filter cap is fixedly installed on the partition, and the filter sand layer plate and filter cap.

Preferably, the upper water distribution pipe is provided with a multi-hole structure that can be evenly distributed and densely arranged, so that the influent water can be evenly distributed on the filter sand layer.

Preferably, the material of the filter tank is a rust-resistant material, which improves the service life of the tank body.

Preferably, the water inlet valve and the backwash valve are automatically operated electric or pneumatic valves, which can realize automatic movement.

Preferably, the two-valve internal source backwash filter has two sets of filters, which can be cleaned separately.

Preferably, the two-valve internal source backwash filter has three sets of filters, and two sets of filters can be cleaned at the same time.

Preferably, the two-valve internal source backwash filter is characterized in that valves are arranged on the water outlet pipes of the filter, and by selectively closing the valves on the water outlet pipes, one or more filters can be selectively The device is backwashed at the same time.

Compared with the prior art, the utility model has the remarkable advantages as follows: 1) the two-valve backwash filter of the utility model is simple in structure and easy to produce; 2) the two-valve internal source backwash filter of the utility model is installed in each set The filter only needs two valves to complete the backwashing action, which saves costs; 3) The two-valve filter of the present utility model does not need to be equipped with a backwashing water pump or an external backwashing water source, saving water and energy consumption; 4 ) The backwash water of the two-valve filter of the present utility model is clean water after filtration, and the backwash effect is better; 5) The two-valve filter of the present utility model can clean a single set or multiple sets of filters to realize automatic operation.

Description of drawings

Figure 1 is a schematic diagram of the structure of a two-valve internal source backwash filter.

A-filter A, B-filter B

1. Water inlet main pipe, 2. Water inlet valve, 3. Upper cloth water pipe, 4. Filter tank, 5. Filter sand layer, 6. Water filter cap, 7. Partition, 8. Outlet branch pipe, 9. Outlet main pipe, 10. Backwash valve, 11. Inlet branch pipe, 12. Backwash water pipe

detailed description

In conjunction with Fig. 1, the two-valve internal source backwash filter of the present invention includes at least two sets of identical filters, the water inlet branch pipe 11 of each set of filter is connected with the water inlet main pipe 1, and the water outlet branch pipe 8 is connected with the water outlet main pipe 9 connected;

One end of the water inlet of the filter tank 4 is connected to the water inlet valve 12, and one end of the water outlet is connected to the water outlet main pipe 9 through the water outlet branch pipe 8; the water inlet valve 2 is located between the filter tank 4 and the water inlet main pipe 1, and the The branch pipe 11 is connected to the main water inlet pipe 1; a backwash water pipe 12 is installed between the water inlet valve 2 and the filter tank 4, and the backwash water pipe 10 is installed on the backwash water pipe 12; the upper distribution water pipe 3, the filter The sand layer 5, the water filter cap 6, and the partition 7 are all inside the filter tank 4; the upper distribution pipe 3 is located at the top of the filter tank 4 and connected to the upper water inlet; the partition 7 is located at the middle and lower part of the tank body and is connected with the The tank body is fixed; the water filter cap 6 is fixedly installed on the partition 7 , and the filter sand layer 5 is above the partition 7 and the water filter cap 6 .

The upper water distribution pipe 3 is provided with a multi-hole structure that can be evenly distributed and densely arranged, so that the influent water can be evenly distributed on the filter sand layer.

In the two-valve internal source backwash filter, the material of the filter tank 4 is rust-resistant material, which improves the service life of the tank body.

The two-valve internal source backwash filter, water inlet valve 2 and backwash valve 10 are electric or pneumatic valves that operate automatically, and can realize automatic movement.

Valves are all set on the water outlet branch pipe 8 of the filter.

Each filter of the utility model only needs to be equipped with two valves to realize the backwashing of the filter, and does not need a backwashing water pump and an external water source. The backwashing water is flushed with filtered clean water, saving water and energy consumption , which reduces the configuration requirements of the equipment, can run automatically to simplify the operation process, and save a lot of investment costs.

The present invention will be further described in detail below in conjunction with the examples.

Example 1

In the two-valve internal source backwash filter of this embodiment, the number of filters is two sets:

When in use, the filtration process is as follows: the water inlet valve 2 is opened, the backwash valve 10 is closed, the original water source enters from the water inlet main pipe 1, and enters the filter tank 4 after passing through the water inlet valve 2 on the water inlet branch pipe 11, and then enters from the upper cloth The water pipe 3 flows out, uniformly distributes water on the filter sand layer 5, then flows out of the filter tank 4 after being collected by the water filter cap 6, flows out after entering the water outlet main pipe 9 from the outlet branch pipe 8, and completes the filtration process.

When in use, the backwashing process is as follows: during backwashing, the two filters are backwashed in turn. When backwashing filter A, the water inlet valve 2 of filter A is closed, and the backwash valve 10 is opened; The water inlet valve 2' of the filter B is opened, and the backwash valve 10' is closed; the water outlet of the main water outlet pipe 9 is closed. The original water source enters from the main water inlet pipe 1. Since the water inlet valve 2 of filter A is closed and the water inlet valve 2' of filter B is opened, the original water source can only flow into the filter tank 4' from the water inlet valve 2' of filter B , flows out from the upper water distribution pipe 3', uniformly distributes water in the filter sand layer 5', is collected by the water filter cap 6', flows out of the filter tank 4' from the water outlet branch pipe 8', and then gathers in the water outlet main pipe 9 to flow out. At this time, since the backwash valve 10 of the filter A is opened, the water in the outlet main pipe 9 will flow reversely from the outlet branch pipe 8 of the filter A to the filter tank 4, first pass through the filter water cap 6, and then pass through the filter sand layer 5. After being backwashed through the water pipe 12, it is discharged into the ditch. After this process, the dirt on the upper part of the filter sand layer 5 of the filter tank 4 is washed out, and the backwashing process of the filter A is completed.

When the filter B needs to be backwashed, the water inlet valve 2 of the filter A is opened, and the backwash valve 10 and the water outlet of the water outlet main pipe 9 are closed. The water inlet valve 2' of the filter B is closed, the backwash valve 10' is opened, and the filter B can be backwashed by repeating the above process.

Example 2

In a further embodiment, the endogenous backwash filter has three sets of filters:

When in use, the filtering process is the same as when two sets are arranged side by side. The backwashing process of the three sets of filter A, filter B and filter C side by side is specifically described below:

When backwashing, when cleaning the filter B alone, close the water outlet of the water outlet main pipe 9, open the water inlet valve of the filter C, and close the backwash valve; close the valve installed on the outlet branch pipe 8 of the filter A, and filter Open the valve installed on the outlet branch pipe 8' on the filter B, close the water inlet valve 2' on the filter B, and open the backwash valve 10'; The water valve flows into the filter tank, flows out from the upper distribution pipe of filter C, and evenly distributes water on the filter sand layer of filter C, then is collected by the filter cap of filter C and flows out of the filter tank from the outlet branch pipe of filter C , and then gather in the water outlet main pipe 9 to flow out; since the valve installed on the water outlet branch pipe 8 of the filter A is closed, and the valve installed on the water outlet branch pipe 8' on the filter B is opened, the water in the water outlet main pipe 9 will flow from the filter The outlet branch pipe 8' of B flows in the opposite direction to the filter B, first passes through the filter water cap 6', then passes through the filter sand layer 5', and then discharges to the ditch through the backwashing water pipe 12'. After this process, the filtered The dirt on the upper part of the filter sand layer 5' in the device B is washed out, and the backwashing process of the filter B is completed.

Similarly, when filter A is backwashed separately, the water outlet of the water outlet main pipe 9 is closed, the water inlet valve of filter C is opened, and the backwash valve is closed; when the valve installed on the outlet branch pipe 8' on the filter B is closed , the valve installed on the outlet branch pipe 8' on the filter A is opened, and the water inlet valve 2 on the filter A is closed, and the backwash valve 10 is opened, then the filter A can be backwashed separately.

Filter C can also be backwashed separately.

When backwashing filter A and filter B at the same time, close the water outlet of the water outlet main pipe 9, open the water inlet valve of filter C, close the backwash valve, and open the water outlet branch pipes on filter A and filter B at the same time The valve installed on the top, and at the same time close the water inlet valve of filter A and filter B, and open the backwash valve, then the filter A and filter B can be backwashed at the same time.

Similarly, when backwashing filter B and filter C at the same time, close the water outlet of the water outlet main pipe 9, open the water inlet valve of filter A, close the backwash valve, and open the filter B and filter C simultaneously. The valve installed on the outlet branch pipe of the filter, and at the same time close the water inlet valve of filter B and filter C, and open the backwash valve, then the filter B and filter C can be backwashed at the same time.

It is also possible to backwash filter A and filter C at the same time.

If no valve is installed on the water outlet branch pipe, then close the water outlet of the water outlet main pipe 9, open the water inlet valve of filter C, and close the backwash valve; close the water inlet valves on filter A and filter B, and the backwash valve Both are open; then filter A and filter B can be cleaned at the same time.

Similarly, multiple filter tanks can be used side by side, suitable for treating different water volumes. Valves are installed on the outlet branch pipe of the filter, and the valve on the outlet branch pipe is selectively closed, and the corresponding water inlet is selectively opened and closed. Valve and backwash valve can selectively backwash single or multiple filters at the same time. At the same time, using electric or pneumatic valves can realize automatic operation and simplify operation.

The two-valve internal source backwashing filter of the utility model has a simple structure and is easy to produce; each filter only needs two valves to complete the backwashing action, saving costs; The washing water source saves water and energy consumption; the backwashing water is filtered clean water, and the backwashing effect is better; single or multiple sets of filters can be cleaned to realize automatic operation.

Claims (7)

1. a kind of endogenous backwash filter of two valves for water process, it is characterised in that：Including at least two sets identical filters, Often cover the water inlet pipe of filter（11）It is connected with water inlet manifold [1], often covers the exit branch of filter（8）It is total with water outlet Pipe（9）It is connected；

Often the filter of set filter includes water intaking valve（2）, upper water distributor（3）, filtering tank（4）, filtering layer of sand（5）, filter Water cap（6）, dividing plate（7）, exit branch（8）, outfall sewer（9）, backwash valve（10）, water inlet pipe（11）With backwash water pipe （12）；

Wherein filtering tank（4）Water inlet one end and water intaking valve（12）It is connected, delivery port one end passes through exit branch（8）With water outlet House steward（9）It is connected；The water intaking valve（2）Positioned at filtering tank（4）With water inlet manifold（1）Between, by water inlet pipe（11）With enter Supply mains（1）It is connected；The water intaking valve（2）With filtering tank（4）Between backwash water pipe is installed（12）, the backwash valve（10）Peace Mounted in backwash water pipe（12）On；The upper water distributor（3）, filtering layer of sand（5）, water filtering cap（6）, dividing plate（7）In filtering tank（4） Inside；The upper water distributor（3）Positioned at filtering tank（4）Inner top is connected with upper water inlet；The dividing plate（7）In tank body Lower position and affixed with tank body；The water filtering cap（6）It is fixedly installed in dividing plate（7）On, filter layer of sand（5）In dividing plate（7）With Water filtering cap（6）Top.

2. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that the upper water distribution Pipe（3）Be provided with can uniform solid matter many outlet hole structures.

3. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that the filtering tank （4）Material be water-fast rust corrosion material.

4. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that the water intaking valve （2）And backwash valve（10）It is the electric and pneumatic valve of automatic running.

5. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that the number of filter Measure is two sets.

6. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that the number of filter Measure is three sets.

7. the endogenous backwash filter of two valves for water process according to claim 1, it is characterised in that filter goes out Water branch pipe（8）On be respectively provided with valve.