Inverted bag type automatic decontamination filter

Abstract

The utility model discloses an inverted bag type automatic decontamination filter, which belongs to the field of filters, and comprises a tank body, a cover body arranged at the top of the tank body, an exhaust port arranged on the cover body, a water inlet arranged at the lower part of the tank body, a water outlet arranged at the upper part of the tank body, and a filter component arranged between the water inlet and the water outlet. The filter assembly comprises a perforated plate and a pressing plate which are fixedly mounted on the tank body, a filter bag is arranged between the perforated plate and the pressing plate, and a bag opening of the filter bag is mounted on the perforated plate. According to the utility model, the structure is simple, the filter bag is inversely arranged, tap water enters from the water inlet at the lower part of the side surface during working, then flows through the inverted filter bag from bottom to top and flows out from the water outlet, and dirt is intercepted by the filter bag and falls into the dirt collecting cavity under the action of self weight; compared with the traditional structure, the filter bag has the functions of automatic decontamination and the like, prolongs the service life of the filter bag, and is suitable for popularization and use.

Description

Technical Field

[0001] The utility model relates to a filter, in particular to an inverted bag type automatic dirt-cleaning filter. Background Art

[0002] Bag filter is a new type of filtration equipment that uses filter cloth as the filtration medium. It has the advantages of high filtration accuracy and large pollution holding capacity. It has been increasingly widely used in various civil and industrial water systems.

[0003] Traditional bag filters are all installed with the filter bag upright, that is, the bag mouth faces upwards and the filter bag is installed vertically downwards. The filtered medium enters the filter from the top of the filter and passes through the filter bag from top to bottom. During this period, it is filtered and the dirt is trapped in the filter bag. When the dirt in the filter bag increases, the filter resistance increases. When it reaches a certain level, it is necessary to manually open the upper flange of the filter, take out the filter bag, and manually clean or replace it. Based on this, the traditional bag filter has high labor intensity, cannot automatically clean dirt, has high operating resistance, increases the power consumption of the circulation pump, and does not meet the development needs of low-carbon goals. Utility Model Content

[0004] The utility model aims to provide an inverted bag type automatic dirt-cleaning filter with an automatic dirt-cleaning function.

[0005] The technical solution of the utility model is: an inverted bag type automatic cleaning filter, comprising a tank body, a cover body is arranged on the top of the tank body, an exhaust port is arranged on the cover body, a water inlet is arranged below the tank body, a water outlet is arranged above the tank body, and a filter assembly is arranged between the water inlet and the water outlet.

[0006] According to a further technical solution, the filter assembly includes a porous plate and a pressure plate fixedly mounted on the tank body, a filter bag is arranged between the porous plate and the pressure plate, and a bag opening of the filter bag is mounted on the porous plate.

[0007] According to a further technical solution, a mesh basket is arranged between the porous plate and the pressure plate, a supporting mesh is arranged between the mesh basket and the porous plate, and a filter bag is arranged between the supporting mesh and the mesh basket.

[0008] According to a further technical solution, the tank body is located below the water inlet to form a sewage collecting chamber, and a sewage outlet is provided at the bottom of the sewage collecting chamber.

[0009] According to a further technical solution, a quick-opening flange is provided between the cover body and the tank body.

[0010] Beneficial effects of the utility model:

[0011] The utility model has a simple structure. By setting the filter bag upside down, tap water enters from the water inlet at the lower side during operation, then flows from the inverted filter bag from bottom to top and then flows out from the water outlet. The dirt is intercepted by the filter bag and falls into the dirt collection chamber under the action of its own weight. When the water pump stops or the water flow decreases, the filter bag collapses under the action of its own weight and the weight of the filtered dirt and is supported by the support net. In this process, the dirt also easily falls off and sinks into the dirt collection chamber, and the dirt in the dirt collection chamber is finally directly discharged through the sewage outlet. Compared with the traditional structure, the utility model has functions such as automatic dirt cleaning, which prolongs the service life of the filter bag and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model.

[0013] Among them, 1. tank body, 2. cover body, 21. exhaust port, 22. quick-opening flange, 3. water inlet, 4. water outlet, 5. sewage collecting chamber, 51. sewage outlet, 6. porous plate, 7. pressure plate, 8. mesh basket, 9. support net, 10. filter bag. DETAILED DESCRIPTION

[0014] The present invention is further described and understood by way of non-limiting examples below.

[0015] like Figure 1 As shown, the utility model provides an inverted bag type automatic cleaning filter, comprising a tank body 1, a cover body 2 is arranged on the top of the tank body 1, and a quick opening flange 22 is arranged between the cover body 2 and the tank body 1. An exhaust port 21 is arranged on the cover body 2, a water inlet 3 is arranged below the tank body 1, a water outlet 4 is arranged above the tank body 1, and a filter assembly is arranged between the water inlet 3 and the water outlet 4.

[0016] The filter assembly includes a porous plate 6 and a pressure plate 7 fixedly mounted on the tank body 1, a mesh basket 8 is arranged between the porous plate 6 and the pressure plate 7, a support mesh 9 is arranged between the mesh basket 8 and the porous plate 6, the filter bag 10 is arranged between the support mesh 9 and the mesh basket 8, and the bag mouth of the filter bag 10 is mounted on the porous plate 6.

[0017] The tank body 1 is located below the water inlet 3 to form a sewage collecting chamber 5 , and a sewage outlet 51 is provided at the bottom of the sewage collecting chamber 5 .

[0018] During operation, tap water enters from the water inlet 3 at the lower side, then flows from the bottom to the top through the inverted filter bag 10 and flows out from the water outlet 4. The dirt is intercepted by the filter bag 10 and falls into the dirt collecting chamber 5 under the action of its own weight, and can be directly discharged from the sewage outlet 51. At the same time, when the water pump stops or the water flow becomes smaller, the filter bag 10 is also easy to collapse under the action of its own weight and the weight of the filtered dirt, and is supported by the support net 9. In this process, the dirt is also easy to fall off and sink into the dirt collecting chamber 5, realizing the automatic dirt cleaning function.

[0019] When the inlet and outlet pressure difference of the filter increases to a certain extent, the quick-opening flange 22 can be opened to take out the filter bag 10 for cleaning and replacement. Compared with the traditional structure, the frequency of opening the quick-opening flange 22 for cleaning is greatly reduced.

[0020] In summary, the utility model has the functions of automatic dirt cleaning, etc., prolongs the service life of the filter bag, and is suitable for popularization and use.

[0021] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An inverted bag type automatic cleaning filter, comprising a tank body, characterized in that: A cover body is provided on the top of the tank body, an exhaust port is provided on the cover body, a water inlet is provided at the bottom of the tank body, a water outlet is provided at the top of the tank body, a filter assembly is provided between the water inlet and the water outlet; the filter assembly includes a porous plate and a pressure plate fixedly mounted on the tank body, a filter bag is provided between the porous plate and the pressure plate, and the bag opening of the filter bag is mounted on the porous plate.

2. The inverted bag type automatic cleaning filter according to claim 1, characterized in that: A mesh basket is arranged between the porous plate and the pressing plate, a supporting net is arranged between the mesh basket and the porous plate, and the filter bag is arranged between the supporting net and the mesh basket.

3. The inverted bag type automatic cleaning filter according to claim 1, characterized in that: The tank body is located below the water inlet to form a sewage collecting chamber, and a sewage outlet is arranged at the bottom of the sewage collecting chamber.

4. The inverted bag type automatic cleaning filter according to claim 1, characterized in that: A quick-opening flange is arranged between the cover body and the tank body.

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