CN212651438U

CN212651438U - High-efficiency filter

Info

Publication number: CN212651438U
Application number: CN202020713247.9U
Authority: CN
Inventors: 张忠文; 崔凯; 赵春弟
Original assignee: Dalian Cathay Petrochemical Technology Co ltd
Current assignee: Dalian Cathay Petrochemical Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-03-05
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a high-efficiency filter, which comprises two end plates, wherein a liquid inlet and a filtered liquid port are respectively arranged on the two end plates, a filter plate and a support plate are alternately arranged between the two end plates, and the end plates, the filter plate and the support plate are combined together to form a multilayer structure; a plurality of support columns are arranged on the surfaces of the two sides of the support plate; a plurality of supporting columns are also arranged on the inner side of the end plate; forming a first channel chamber between the filter plate and the support plate; a second channel chamber is formed between the filter plate and the end plate.

Description

High-efficiency filter

Technical Field

The utility model relates to a filter technical field, especially a high efficiency filter.

Background

The filtration is to force the fluid in the liquid-solid or gas-solid mixture to pass through a porous filter medium to retain the suspended solid particles therein, thereby realizing the separation of the mixture. The filtration of the mixture is performed under a pressure difference (including a pressure difference due to gravity) or a centrifugal force.

The common bag filter has the advantages that impurities are blocked in the filter bag, the filter bag is cleaned or replaced when the pressure drop reaches a certain degree, the filtering efficiency is low, and the labor intensity of workers is high.

At present, for high-precision filtration, especially when the filtration precision reaches 0.5u, the filtration pressure difference is strictly controlled to prevent the damage of the filter material due to the limitation of the strength of the porous filter material, and meanwhile, the filtration period is short and the regeneration effect of the filter material is poor.

Therefore, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high efficiency filter, the structure is unique, can be high pressure resistant, high temperature, realizes quick frequent back flush.

In order to achieve the purpose, the utility model provides a high-efficiency filter, which comprises two end plates, wherein a liquid inlet and a filtered liquid outlet are respectively arranged on the two end plates, a filter plate and a support plate are alternately arranged between the two end plates, and the end plates, the filter plate and the support plate are combined together to form a multilayer structure; a plurality of support columns are arranged on the surfaces of the two sides of the support plate; a plurality of supporting columns are also arranged on the inner side of the end plate; forming a first channel chamber between the filter plate and the support plate; a second channel chamber is formed between the filter plate and the end plate.

Further, the support plate, the filter plate and the end plate are connected by diffusion welding.

Furthermore, the upper end and the lower end of the supporting plate are both provided with channel holes.

Furthermore, the upper end and the lower end of the filter plate are provided with channel holes.

Further, the support plate and the end plate are both machined or etched from steel plates.

Compared with the prior art, the utility model discloses a following beneficial effect has:

1. in the preferred scheme, the filter is manufactured by adopting a diffusion welding technology, the welding joint has high strength and small welding deformation, and the filter plate is connected with the supporting surface and the sealing surface of the filter plate in a large area.

2. The backup pad and the support column on it have played the effect of reinforcing to the filter for filter itself has high strength, can use under the harsh operating mode such as high pressure, high temperature.

3. Because of high strength and high pressure resistance, the filter plate can be quickly blowback and fall off impurities by utilizing high-pressure steam for high-viscosity media which are difficult to filter, such as dirty and blocked filter elements and the like.

4. The filtering period is long, the efficiency is high, and the back flushing regeneration is carried out on the filtering material when the pressure difference of the traditional filtering is about 0.1-0.5 MPa. The filter has the characteristic of high pressure resistance, so that the filtering pressure difference can be borne by more than 3Mpa, and the filtering stage time is longer.

Drawings

Fig. 1 is a schematic structural diagram of a high efficiency filter according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an end plate;

FIG. 3 is a schematic structural view of a support plate;

1-a filter plate; 2-a support plate; 3-an end plate; 4-liquid inlet; 5-a liquid filtering port; 6-support column; 7-a channel hole; 8-a second channel cavity; 9-first channel chamber.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.

The embodiment of the present invention provides a high efficiency filter, as shown in fig. 1-3, which is a multi-layer structure, comprising two end plates 3, a filter plate 1 and a support plate 2 located between the two end plates 3. As mentioned above, the end plate 3, the filter plate 1 and the support plate 2 are welded together as a laminated structure, and the space between the individual plates is shown larger in fig. 1 for clarity.

The bottom of one end plate 3 is a liquid inlet 4, and the upper end of the other end plate 3 is a filtered liquid outlet 5. Between the two end plates 3, filter plates 1 and support plates 2 are arranged alternately. In fig. 1, for convenience of illustration, the filter plates 1 are two, and a support plate 2 is provided between the two filter plates 1. In the specific implementation, the number of the filter plates 1 and the support plates 2 can be flexibly selected, for example, a plurality of filter plates 1 and support plates 2 can be arranged according to the size of the filter and the number of layers to be filtered. Both sides of the support plate 2 are provided with a plurality of support columns 6, and the inner side of the end plate 3 is also provided with a plurality of support columns 6. The support posts 6 may be formed by machining or etching from sheet steel to provide the respective support plates 2 and end plates 3.

Due to the presence of the support columns 6, a first channel chamber 9 is formed between adjacent filter plates 1 and support plates 2 and a second channel chamber 8 is formed between the end plate 3 and filter plate 1. The liquid inputted into the high efficiency filter flows in the respective first passage chamber 9 and second passage chamber 8. And meanwhile, the supporting column 6 is also used as a welding point for connecting the end plate 3 with the filter plate 1, and the filter plate 1 with the supporting plate 2.

The supporting plate 2 is used for improving the pressure resistance of the filter plate 1, a plurality of supporting columns 6 which are distributed substantially uniformly are formed on the surface of the supporting plate 2, and the supporting columns 6 are raised relative to the surface of the supporting plate 2, so that the reinforcing effect on the filter plate 1 is achieved, and the supporting columns can be used as welding fusion points. When high-pressure environment exists in the filter, such as high filtration difference, or high-pressure steam blowback, the filter has good pressure resistance due to the existence of the support plate 2, and can adapt to the high-pressure environment.

The diffusion welding technology is preferably adopted for welding between the end plate 3 and the filter plate 1 and between the filter plate 1 and the supporting plate 2, the welding joint strength is high, the welding deformation is small, and the filter plate 1 is connected with the supporting surface and the sealing surface of the filter plate in a large area. The two sides of the filter plate 1 are reinforced and supported by the support plates 2, and the filter plate 1 is fused together by diffusion welding, so that the strength of the filter plate 1 is further increased.

Both ends all are equipped with the via hole 7 about backup pad 2, and filter 1 also sets up via hole 7 about with backup pad 2 corresponds to for liquid flow.

During operation, liquid flows in from the liquid inlet 4, passes through the channel cavity, and is distributed to the surface of each filter plate 1, and the filter cake is intercepted on the filter plate 1, and the filtrate collects the channel cavity and is discharged from the liquid outlet. When the filter generates a certain pressure difference, the liquid feeding is stopped. And a back-flushing medium is introduced from the filtering liquid port 5 to back flush the filtering plate 1, and the filter cake falls off and is collected to be discharged from the liquid inlet 4.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A high-efficiency filter is characterized by comprising two end plates, wherein a liquid inlet and a filtered liquid outlet are respectively arranged on the two end plates, a filter plate and a support plate are alternately arranged between the two end plates, and the end plates, the filter plate and the support plate are combined together to form a multilayer structure; a plurality of support columns are arranged on the surfaces of the two sides of the support plate; a plurality of supporting columns are also arranged on the inner side of the end plate; forming a first channel chamber between the filter plate and the support plate; a second channel chamber is formed between the filter plate and the end plate.

2. The high efficiency filter of claim 1, wherein the support plate, filter plate, and end plate are joined by diffusion welding.

3. The high efficiency filter of claim 1, wherein the support plate is provided with passage holes at both the upper and lower ends thereof.

4. The high efficiency filter of claim 1, wherein the filter plate is provided with passage holes at both upper and lower ends thereof.

5. The high efficiency filter of claim 2, wherein the support plate and the end plate are each machined or etched from sheet steel.