CN215232568U - Security filter - Google Patents

Abstract

The utility model provides a security filter especially relates to a but backwash regenerative security filter. The cartridge filter comprises a filter body and a filter element arranged in the filter body, wherein a water inlet pipeline is arranged on the input side above the filter body, a water production pipeline is arranged on the output side below the filter body, and the cartridge filter further comprises a backwashing water pipeline with an inlet arranged on the output side above the filter body. By arranging the regeneration system, the filtering performance of the filter element is recovered, the service life of the filter element is prolonged, the operation is convenient, the time consumption is short, and the frequency of replacing the filter element is greatly reduced; meanwhile, the working time of the equipment is prolonged, and the risk that impurities are brought into the filter element replacing process to threaten the safety of the equipment is reduced.

Description

Security filter

Technical Field

The utility model relates to a security filter especially relates to a but backwash regenerative security filter.

Background

The safety filter is also called as a precision filter. The shell of the cylinder is generally made of stainless steel, tubular filter elements such as PP melt-blown filter elements, wire-wound filter elements and folding filter elements are adopted as the filter elements in the shell, and different filter elements are selected according to different filter media and design processes so as to meet the requirement of effluent quality. The method is widely applied to the fields of petrochemical industry, natural gas, coatings, paints, printing inks, medicines, bioengineering, automobile manufacturing, electronics, electroplating, foods, beverages and the like. The filtered liquid is pressed in from the inlet of the filter, passes through the filter element from outside to inside to penetrate through the filter layer to be filtered into clear liquid, and then is discharged from the outlet. The impurities are trapped in the deep layer and the surface of the filter element, so that the liquid is filtered.

The filter element is a disposable element, and when the pressure difference of the filter rises to a specified value, the filter element needs to be replaced by a new filter element, so that the production cost is high. When the filter element is replaced, the filter end cover and the filter element fixing end plate need to be disassembled, the replacement process is complex and long, and the effective working time of equipment is influenced. In addition, impurities are possibly brought into the water production side of the filter in the process of replacing the filter element, and then enter subsequent equipment to influence the safe operation of the equipment.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a security filter, which recovers the filtering performance of a filter element by arranging a backwashing regeneration system, prolongs the service life of the filter element, is convenient to operate and short in time consumption, and greatly reduces the frequency of replacing the filter element; meanwhile, the working time of the equipment is prolonged, and the risk that impurities are brought into the filter element replacing process to threaten the safety of the equipment is reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cartridge filter, includes filter body and locates this internal filter core of filter, filter body top input side is equipped with the inlet channel, filter body below output side is equipped with the product water pipeline, still locates including the entry the backwash water pipeline of filter body top output side for wash the filter core of pollution. The backwashing water pipeline is connected with the water inlet pipeline through a valve.

Furthermore, a second valve and a third valve are respectively arranged on the water inlet pipeline and the water production pipeline, and the first valve and the second valve are connected in parallel.

And a chemical feeding pipeline is also arranged on the back washing water pipeline at the lower part of the first valve, and a fourth valve is arranged on the chemical feeding pipeline. By adding the medicament, the backwashing regeneration effect of the filter element is enhanced.

Preferably, the backwashing water pipeline is provided with an opposite flushing water inlet at a position opposite to the dosing pipeline, so that the medicament can be better dispersed in the backwashing water under the action of opposite flushing water flow.

More preferably, the head parts of the drug feeding pipeline inlet and the opposite flushing water inlet are both in a sharp mouth shape, so that the flow velocity of water is respectively accelerated, the opposite flushing effect is enhanced, and the drug is further dispersed in the back flushing water.

The filter body top input side still is equipped with the admission line, the filter body top output side is equipped with exhaust duct. And the compressed air is added into the air inlet pipeline, so that the backwashing effect is further enhanced.

And the air inlet pipeline and the air outlet pipeline are respectively provided with a valve five and a valve six.

And a sewage discharge pipeline is also arranged at the input side below the filter body.

The application provides a cartridge filter restores filter core filtration performance through modes such as backwash, add medicine, offset, advance compressed air, extension filter core life-span. Convenient operation, the time spent is short, greatly reduced the frequency of renew cartridge, improved equipment operating time simultaneously, reduced the risk that the renew cartridge in-process brought impurity into threatened equipment safety.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a cartridge filter according to the present invention.

Description of reference numerals:

1-a filter body, 2-a filter element, 3-a filter element fixing plate, 4-a water inlet pipeline, 5-a water production pipeline, 6-a backwashing water pipeline, 7-a valve I, 8-a valve II, 9-a valve III, 10-a medicine adding pipeline, 11-a valve IV, 12-a backwashing water inlet, 13-an air inlet pipeline, 14-an exhaust pipeline, 15-a valve V, 16-a valve VI and 17-a sewage discharge pipeline.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Example 1

The utility model provides a security filter, as shown in figure 1, includes filter body 1 and locates filter core 2 in filter body 1, and filter core 2 installs on locating filter core fixed plate 3 inside filter body 1, and filter body 1 top input side is equipped with inlet channel 4, and filter body 1 below output side is equipped with product water pipeline 5, still includes that the entry locates the backwash water pipeline 6 of filter body 1 top output side for wash the filter core of pollution. The backwashing water pipeline 6 is connected to the water inlet pipeline 4 through a first valve 7, and a water supply pump is used for supplying water directly without adding a separate backwashing water pump.

And a second valve 8 and a third valve 9 are respectively arranged on the water inlet pipeline 4 and the water production pipeline 5, and a first valve 7 and the second valve 8 are arranged in parallel.

A dosing pipeline 10 is further arranged on the backwashing water pipeline 6 at the downstream of the first valve 7, and a fourth valve 11 is arranged on the dosing pipeline 10. By adding the medicament, the backwashing regeneration effect of the filter element is enhanced.

In this embodiment, the position that is relative with medicine pipeline 10 on backwash water pipeline 6 is equipped with counterpulsation water inlet 12, can make the medicament can be under the counterpulsation rivers effect, better dispersion in backwash water.

In a preferred embodiment, the heads of the medicine feeding pipeline 10 inlet and the opposite flushing water inlet 12 are both in a sharp mouth shape, so that the flow velocity of water is respectively accelerated, the opposite flushing effect is enhanced, and the medicine is further dispersed in the backwashing water.

An air inlet pipeline 13 is arranged at the upper input side of the filter body 1, and an exhaust pipeline 14 is arranged at the upper output side of the filter body 1. The backwash effect is further enhanced by adding compressed air to the inlet line 13.

And a valve five 15 and a valve six 16 are respectively arranged on the air inlet pipeline 13 and the air outlet pipeline 14.

A sewage discharge pipeline 17 is arranged at the input side below the filter body 1.

When the filter works normally, the second valve 8 and the third valve 9 are opened, other valves are closed, and inlet water enters the filter from the water inlet pipeline 4 and flows out from the water production pipeline 5 after being filtered by the filter element 2.

When the filter is backwashed, the first valve 7 and the sewage discharge pipeline 17 are opened, water in the water inlet pipeline enters the backwashing water pipeline 6 through the first valve 7 to form backwashing water, the backwashing water enters the filter from the output side to backwash the filter element 2, and sewage is discharged from the sewage discharge pipeline 17.

In the backwashing process, a valve IV 11 can be opened according to the situation to add a medicament, so that the backwashing effect is enhanced.

And in the backwashing process, a valve five 15 can be opened according to the situation, and compressed air is added, so that the backwashing effect is further enhanced.

In this embodiment, the cartridge filter can be filled with water by opening the six 16 and two 8 valves.

Claims (9)

1. The utility model provides a cartridge filter, includes filter body and locates filter core in the filter body, filter body top input side is equipped with the inlet channel, filter body below output side is equipped with the product water pipeline, its characterized in that still includes that the entry is located the backwash water pipeline of filter body top output side.

2. The cartridge filter according to claim 1, wherein the backwash water conduit is connected to the inlet conduit by a valve.

3. The cartridge filter according to claim 2, wherein the water inlet pipeline and the water production pipeline are respectively provided with a second valve and a third valve, and the first valve and the second valve are arranged in parallel.

4. The cartridge filter according to claim 3, wherein a chemical feeding pipeline is further provided on the backwash water pipeline at a downstream of the valve, and a valve four is provided on the chemical feeding pipeline.

5. The cartridge filter according to claim 4, wherein a counter-flushing water inlet is provided at a position on the backwash water pipe opposite to the medicine-feeding pipe.

6. The cartridge filter according to claim 5, wherein the dosing pipe inlet and the opposite flushing water inlet are each pointed.

7. The security filter according to claim 6, wherein the filter body upper input side is further provided with an air inlet duct and the filter body upper output side is provided with an air outlet duct.

8. The cartridge filter according to claim 7, wherein the inlet duct and the outlet duct are provided with a valve five and a valve six, respectively.

9. The security filter according to any one of claims 1-8, wherein a drain is further provided on the input side below the filter body.

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