Buffering waterway structure of filter

Abstract

The utility model discloses a buffer waterway structure of a filter, which comprises a tank body, the tank body is sequentially divided into an upper mixing cavity, a middle filter cavity and a lower buffer cavity in the height direction, a filter plate is arranged in the middle filter cavity along the horizontal direction, filter elements are uniformly distributed on the filter plate, and the filter elements downwards extend to the upper part of the lower buffer cavity. A flow choking structure is arranged in the tank body in the liquid inlet direction of the liquid inlet pipe, the flow choking structure is located in the middle filtering cavity or the lower buffering cavity, a flow guide structure is arranged in the tank body in the liquid outlet direction of the liquid outlet pipe, and the flow guide structure is located in the upper mixing cavity. In the process, the flowing direction of the fluid is confirmed, meanwhile, the stroke of the fluid in the tank body is increased, the mixing and filtering effects are better, meanwhile, the stroke of the fluid entering the filter element from the liquid inlet pipe is averaged, and the filtering effect is further improved.

Description

Technical Field

[0001] The utility model relates to a filter structure, in particular to a filter buffer waterway structure. Background Art

[0002] The filter is an indispensable device on the pipeline for conveying media. It is usually installed on the pressure reducing valve, pressure relief valve, in the middle or at the end of the production line as a device for purifying and filtering the fluid medium.

[0003] It is often used in oil transportation or chemical production to filter impurities in pipelines. It is a small device that removes a small amount of particulate matter from liquid or fluid media. It can protect the normal operation of compressors, pumps, instruments and others. When cleaning is required, it can be replaced by backflushing or opening the filter element. Currently, filters are widely used in petroleum, chemical, pharmaceutical, food, environmental protection and other industries. Connecting it in series at the pump inlet or other parts of the system pipeline can ensure the safe use of the entire system.

[0004] In the prior art, the invention patent with application number "CN201910213388.6" discloses a basket filter. Currently, in the buffer system of the waterway, whether it is a filter element type or a filter basket type, the medium flow route is not planned, that is, the distance between the liquid inlet position and the filter element is not equal, and the distance between the liquid outlet position and the filter element position is not equal, resulting in uneven filtration effect. Utility Model Content

[0005] The purpose of the utility model is to provide a filter buffer water channel structure, which improves the mixing effect and filtering effect of the filter through a flow blocking structure and a flow guiding structure.

[0006] The filter bag of the utility model is a kind of novel filter bag, and its structure is novel and convenient. It is a kind of novel filter bag with a simple structure and convenient operation.

[0007] Preferably, the flow-blocking structure includes a transverse plate, which is located in front of the liquid inlet pipe. A flow gap for liquid to flow through is formed between the transverse plate and the liquid inlet pipe. The height of the transverse plate is greater than the diameter of the liquid inlet pipe, and the two ends of the transverse plate in the length direction are connected to the inner wall of the tank body.

[0008] By adopting the above technical solution, the transverse plate guides the liquid flowing out of the liquid inlet pipe to flow upward or downward, so that it enters the middle filter cavity from the top or from the lower buffer cavity more evenly.

[0009] Preferably, the transverse plate is arranged in the middle filter cavity.

[0010] By adopting the above technical solution, the volume of the tank body is reduced and the distance for the liquid to enter the filter cavity is shortened.

[0011] Preferably, the distance between the filter plate and the bottom of the tank body is less than or equal to the distance between the filter plate and the top of the tank body.

[0012] By adopting the above technical solution, the volume of the upper mixing chamber is increased, and the mixing effect of the liquid in the upper mixing chamber is improved.

[0013] Preferably, a surround cover is provided on the top of the transverse plate, and the surround cover extends along the length direction of the transverse plate. One side of the surround cover is connected to the transverse plate, and the other side of the surround cover is connected to the inner side of the tank body. The transverse plate and the baffle plate are located in the lower buffer cavity.

[0014] By adopting the above technical solution, the liquid in the liquid inlet pipe can only flow downward into the lower buffer cavity, and then enter the middle filter cavity from the lower buffer cavity.

[0015] Preferably, the distance between the filter plate and the bottom of the tank body is greater than or equal to the distance between the filter plate and the top of the tank body.

[0016] Preferably, the guide structure includes a guide plate arranged in the upper mixing chamber, the two ends of the guide plate in the length direction are connected to the inner side of the tank body on both sides of the liquid outlet pipe, the guide plate is arranged around the inlet of the liquid outlet pipe, the cross-section of the guide plate is C-shaped, and the guide plate extends downward to the filter plate.

[0017] By adopting the above technical solution, the guide plate plays a role in guiding the fluid from top to bottom, that is, ensuring that the liquid after passing through the middle filter cavity is mixed in the upper mixing cavity and then flows into the guide plate.

[0018] Preferably, the guide plate is provided with filter holes, and the filter holes are arranged to penetrate the guide plate in a horizontal direction.

[0019] By adopting the above technical solution, the speed at which the medium passes through the guide plate is increased.

[0020] Preferably, the filter plate is provided with a partition area below the liquid outlet pipe, the bottom of the guide plate is connected to the outside of the partition area, and the filter element is not provided in the partition area.

[0021] By adopting the above technical solution, that is, in a more extreme usage situation, due to the partition of the partition area, the filter element is not set in the partition area, so the fluid cannot enter the guide plate through the middle filter cavity, and can only enter the upper mixing cavity before entering the guide plate.

[0022] To sum up, during the filtration process, after the fluid passes through the liquid inlet pipe, it comes into contact with the flow-blocking structure. The flow-blocking structure blocks the fluid and prevents the fluid from directly entering the filter element. Instead, the fluid enters the middle filter chamber or the lower buffer chamber under the guidance of the flow-blocking structure. After the fluid passes through the filter element, the fluid enters the upper mixing chamber. The fluid can only enter the liquid outlet pipe through the flow-guiding structure located in the upper mixing chamber. In this process, the flow direction of the fluid is confirmed, and at the same time, the fluid travels more in the tank body, resulting in better mixing and filtration effects. At the same time, the travel of the fluid from the liquid inlet pipe into the filter element is averaged, further improving the filtration effect, and also playing a buffering role in this process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of Example 1;

[0024] Figure 2 is a schematic transverse cross-sectional view of Example 1 at the guide structure position;

[0025] Figure 3 is a schematic transverse cross-sectional view of Example 2 at the diversion structure position;

[0026] Figure 4 is a schematic cross-sectional view of the flow-blocking structure of Example 3;

[0027] In the figure, 1. tank body; 11. liquid inlet pipe; 12. liquid outlet pipe; 13. upper mixing chamber; 14. middle filter chamber; 15. lower buffer chamber; 2. filter plate; 21. filter element; 3. transverse plate; 31. surrounding cover; 4. guide plate; 41. partition area; 42. filter hole. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0030] Example 1:

[0031] like Figure 1 and Figure 2 As shown, a filter buffer waterway structure includes a cylindrical tank body 1, which is divided into an upper mixing chamber 13, a middle filter chamber 14 and a lower buffer chamber 15 from top to bottom in the height direction, wherein the upper mixing chamber 13 and the lower buffer chamber 15 pass through a filter plate 2, and a liquid outlet pipe 12 communicating with the upper mixing chamber 13 is provided on the side surface of the upper part of the tank body 1, and a liquid inlet pipe 11 communicating with the lower buffer chamber 15 is provided on the side surface of the lower part of the tank body 1, and the liquid outlet pipe 12 and the liquid inlet pipe 11 are arranged on the face of the tank body 1, and a filter plate 2 is arranged in the middle of the middle filter chamber 14 along the horizontal direction, and the filter plate 2 is welded and fixed to the inner wall of the tank body 1, and filter elements 21 are evenly distributed on the filter plate 2, that is, a plurality of filter elements 21 are provided, and the filter element 21 extends downward to above the lower buffer chamber 15.

[0032] like Figure 1 and Figure 2 As shown, in Example 1, a flow-guiding structure is provided at the top of the tank body 1, and a flow-blocking structure is provided at the bottom of the tank body 1, thereby guiding and buffering the direction of the fluid in the tank body 1. The flow-blocking structure is provided in the liquid inlet direction of the liquid inlet pipe 11 in the tank body 1, and the flow-guiding structure is provided in the liquid outlet direction of the liquid outlet pipe 12 in the tank body 1.

[0033] like Figure 1 and Figure 2 As shown, the guide structure is located in the upper mixing chamber 13. There are two types of guide structures. The guide structure in Example 1 belongs to an S-type recovery structure, that is, the fluid cannot directly enter the liquid outlet pipe 12 through the filter element 21, but needs to pass through the upper mixing chamber 13 before entering the liquid outlet pipe 12 through the guide structure; the specific structure of the guide structure is: the guide structure includes a guide plate 4 arranged in the upper mixing chamber 13, and the two ends of the guide plate 4 in the length direction are welded and fixed to the inner side of the tank body 1 on both sides of the liquid outlet pipe 12, that is, the cross-sectional shape of the guide plate 4 is C-shaped, and the guide plate 4 is arranged around the inlet of the liquid outlet pipe 12. The filter plate 2 is provided with a partition area 41 below the liquid outlet pipe 12, and the filter element 21 is not provided in the partition area 41. The guide plate 4 extends downward to the filter plate 2, and the bottom of the guide plate 4 is welded and fixed to the outer side of the partition area 41.

[0034] like Figure 1 As shown, the flow-blocking structure is located in the middle filter cavity 14. The flow-blocking structure in Example 1 is a structure for blocking the flow of fluid from above and below. The specific structure is that the flow-blocking structure includes a transverse plate 3, which is located in front of the liquid inlet pipe 11. At the same time, a flow gap for liquid to flow through is formed between the transverse plate 3 and the liquid inlet pipe 11. The height of the transverse plate 3 is greater than the diameter of the liquid inlet pipe 11 to avoid the transverse plate 3 being unable to block the fluid. The two ends of the transverse plate 3 in the length direction are welded to the inner wall of the tank body 1 to facilitate the installation of the transverse plate 3.

[0035] At the same time, in order to control the mixing effect and flow rate of the fluid to be filtered and to achieve a buffering effect, the height of the filter plate 2 set in the tank body 1 is controlled, that is, the volumes of the upper mixing chamber 13 and the lower buffer chamber 15 are adjusted to control them. For example, the distance between the filter plate 2 and the bottom of the tank body 1 is less than or equal to the distance between the filter plate 2 and the top of the tank body 1, or the distance between the filter plate 2 and the bottom of the tank body 1 is greater than or equal to the distance between the filter plate 2 and the top of the tank body 1.

[0036] Working principle:

[0037] In Example 1, the fluid enters the tank body 1 through the liquid inlet pipe 11 and is blocked by the transverse plate 3. The fluid is bifurcated at the position of the transverse plate 3, that is, part of the fluid passes through the upper part of the transverse plate 3 and directly enters the middle filter chamber 14, and the other part of the fluid passes through the lower part of the transverse plate 3 and enters the lower buffer chamber 15, and then enters the middle filter chamber 14 from the bottom; after the two parts are filtered, they finally enter the upper mixing chamber 13 and finally pass through the Figure 2 After the guide plate 4 is removed, the fluid flows out from the liquid outlet pipe 12 .

[0038] Example 2:

[0039] like Figure 3 As shown, Example 2 makes structural adjustments for filtering fluids with faster flow rates, that is, the partition area 41 is not set at the bottom of the guide plate 4, and it is not required that the bottom of the guide plate 4 be welded to the filter plate 2. Instead, the filter element 21 can be set at the bottom of the guide plate 4, and at the same time, a filter hole 42 can be set on the side of the guide plate 4, and the filter hole 42 is set along the horizontal direction through the guide plate 4.

[0040] Working principle:

[0041] Compared with Example 1, in Example 2, during the diversion stage, the fluid can directly enter the liquid outlet pipe 12 from the middle filtration chamber 14, and at the same time, the fluid in the upper mixing chamber 13 does not need to enter the liquid outlet pipe 12 through the top of the guide plate 4, but can enter the guide plate 4 through the filter hole 42.

[0042] Example 3:

[0043] like Figure 4 As shown, Example 3 discloses another design of a flow-blocking structure, that is, the combination of Example 1 and Example 3, which can make the overall buffer waterway S-shaped. The specific structure is: the transverse plate 3 does not extend along the length direction, and a surrounding cover 31 is provided on the side and top of the transverse plate 3. The surrounding cover 31 extends along the length direction of the transverse plate 3, one side of the surrounding cover 31 is connected to the transverse plate 3, and the other side of the surrounding cover 31 is connected to the inner side of the tank body 1, and the transverse plate 3 and the baffle plate are located in the lower buffer cavity 15.

Claims

1. A filter buffer waterway structure, comprising a tank body (1), characterized in that: The tank body (1) is divided into an upper mixing chamber (13), a middle filtering chamber (14) and a lower buffer chamber (15) in sequence in the height direction. A liquid outlet pipe (12) communicating with the upper mixing chamber (13) is provided on the side of the upper portion of the tank body (1). A liquid inlet pipe (11) communicating with the lower buffer chamber (15) is provided on the side of the lower portion of the tank body (1). A filter plate (2) is provided in the horizontal direction in the middle filtering chamber (14). Filter elements (21) are evenly distributed on the filter plate (2). The filter elements (21) extend downward to the upper portion of the lower buffer chamber (15). The tank body (1) is provided with a plurality of filter plates (21) arranged in a plurality of filter plates (21). ) is provided with a flow-blocking structure in the liquid inlet pipe (11) in the liquid inlet direction, the flow-blocking structure being located in the middle filter chamber (14) or the lower buffer chamber (15); and a flow-guiding structure is provided in the tank body (1) in the liquid outlet pipe (12) in the liquid outlet direction, the flow-guiding structure being located in the upper mixing chamber (13); liquid enters the tank body (1) through the liquid inlet pipe (11), passes through the lower buffer chamber (15) and the middle filter chamber (14) in the height direction of the flow-blocking structure, enters the upper mixing chamber (13) after passing through the middle filter chamber (14), and finally enters the liquid outlet pipe (12) through the flow-guiding structure and flows out.

2. The filter buffer water channel structure according to claim 1, characterized in that: The flow-blocking structure comprises a transverse plate (3), the transverse plate (3) being located in front of the liquid inlet pipe (11), a flow gap for liquid to flow through being formed between the transverse plate (3) and the liquid inlet pipe (11), the height of the transverse plate (3) being greater than the diameter of the liquid inlet pipe (11), and both ends of the transverse plate (3) in the length direction being connected to the inner side wall of the tank body (1).

3. The filter buffer water channel structure according to claim 2, characterized in that: The transverse plate (3) is arranged in the middle filter cavity (14).

4. The filter buffer water channel structure according to claim 3, characterized in that: The distance between the filter plate (2) and the bottom of the tank body (1) is less than or equal to the distance between the filter plate (2) and the top of the tank body (1).

5. The filter buffer water channel structure according to claim 2, characterized in that: A surrounding cover (31) is provided on the top of the transverse plate (3), and the surrounding cover (31) extends along the length direction of the transverse plate (3). One side of the surrounding cover (31) is connected to the transverse plate (3), and the other side of the surrounding cover (31) is connected to the inner side of the tank body (1). The transverse plate (3) and the baffle plate are located in the lower buffer cavity (15).

6. The filter buffer water channel structure according to claim 5, characterized in that: The distance between the filter plate (2) and the bottom of the tank body (1) is greater than or equal to the distance between the filter plate (2) and the top of the tank body (1).

7. The filter buffer water channel structure according to claim 1, characterized in that: The guide structure comprises a guide plate (4) arranged in the upper mixing chamber (13), the two ends of the guide plate (4) in the length direction being connected to the inner side of the tank body (1) on both sides of the liquid outlet pipe (12), the guide plate (4) being arranged around the inlet of the liquid outlet pipe (12), the cross-section of the guide plate (4) being C-shaped, and the guide plate (4) extending downward to the filter plate (2).

8. The filter buffer water channel structure according to claim 7, characterized in that: The guide plate (4) is provided with a filter hole (42), and the filter hole (42) is provided through the guide plate (4) in a horizontal direction.

9. The filter buffer water channel structure according to claim 7, characterized in that: The filter plate (2) is provided with a partition area (41) below the liquid outlet pipe (12); the bottom of the guide plate (4) is connected to the outside of the partition area (41); and the filter element (21) is not provided in the partition area (41).

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