Differential pressure pipeline filter

Abstract

The utility model discloses a differential pressure pipeline filter, which comprises a filter upper cover, a filter lower cover, a first connecting hole, a second connecting hole and a pressure sensor, a second through channel is formed in the lower filter cover, a second connecting hole is formed in the position, corresponding to the first connecting hole, of the lower filter cover, a mounting groove is formed in the lower filter cover, and the second channel is located in the center of the mounting groove; the locking piece penetrates through the first connecting hole and is connected with the second connecting hole; and the filtering part is mounted in the mounting groove. Compared with the prior art, the filter disclosed by the utility model can solve the problem that the replacement cost is increased due to the fact that the filter membrane of the existing filter cannot be detached for replacement.

Description

Technical Field

[0001] The utility model relates to a filter, in particular to a pressure difference pipeline filter. Background Art

[0002] As filtering equipment, filters are widely used in fields such as air supply and exhaust isolation and protection equipment. They need to be replaced after a period of use to ensure the filtering effect.

[0003] In the utility model patent application with application number CN202320307493.8, application publication date 2023.06.27, and titled "A filter for protecting the differential pressure instrument of the supply and exhaust air isolation protection device", it includes a shell; a channel runs through the shell; a filter membrane is fixed in the middle area of ​​the channel; pipe joints are installed at both ends of the channel for connecting to the differential pressure test pipeline, which can block and filter toxic and harmful substances in the air on the upstream side, withstand the corrosion of VHP disinfection, effectively protect the differential pressure instrument, and ensure that toxic and harmful substances do not leak.

[0004] During the operation of a specific embodiment, the inventor discovered the following defects: after the filter has been used for a long time, its effect deteriorates and the filter needs to be replaced. However, when replacing the filter, it is found that the filter membrane cannot be disassembled for replacement and the entire filter needs to be replaced, which increases the replacement cost. Utility Model Content

[0005] The utility model aims to provide a pressure difference pipeline filter in order to solve the problem that the filter membrane of the existing filter cannot be disassembled for replacement, resulting in increased replacement costs.

[0006] In order to achieve the above object, the utility model provides a pressure differential pipeline filter, which includes:

[0007] A filter upper cover, wherein a first channel is provided in the filter upper cover, and at least two first connecting holes are provided on the filter upper cover;

[0008] A filter lower cover, wherein a second channel is provided in the filter lower cover, a second connection hole is provided in the filter lower cover at a position corresponding to the first connection hole, a mounting groove is provided in the filter lower cover, and the second channel is located at the center of the mounting groove;

[0009] a locking member, the locking member passing through the first connecting hole and connected to the second connecting hole;

[0010] A filter component is installed in the installation groove.

[0011] As a further description of the above technical solution:

[0012] The filtering component is filter paper or filter membrane.

[0013] As a further description of the above technical solution:

[0014] The lower cover is provided with a sealing groove, the sealing groove is located outside the mounting groove, and a sealing ring is provided in the sealing groove.

[0015] As a further description of the above technical solution:

[0016] An air inlet ferrule joint is disposed at the end of the first channel, and an air outlet ferrule joint is disposed at the end of the second channel.

[0017] As a further description of the above technical solution:

[0018] The first connecting hole and the second connecting hole are both screw holes, and the locking member is a bolt.

[0019] As a further description of the above technical solution:

[0020] The first connecting hole is a countersunk screw hole.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0022] 1. In the utility model, the filter is composed of a filter upper cover and a filter lower cover which cooperate with each other. The filter upper cover and the filter lower cover are detachably connected by two bolts, so that the filter component can be easily taken out for replacement, thereby reducing the cost of filter maintenance and replacement.

[0023] 2. In the utility model, when replacing the filter component, there is no need to remove the filter from the pipeline for replacement. It is only necessary to loosen the bolts. After the filter component is replaced, the filter upper cover and the filter lower cover are closed and fixed with bolts, which makes disassembly and replacement more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A three-dimensional diagram of a differential pressure line filter.

[0026] Figure 2 An exploded view of a differential pressure line filter.

[0027] Figure 3 The figure is a schematic diagram of the structure of a differential pressure pipeline filter.

[0028] Figure 4 for Figure 3 AA cross-sectional view of .

[0029] Legend:

[0030] 1. Filter upper cover; 2. First channel; 3. First connecting hole; 4. Filter lower cover; 5. Second channel; 6. Second connecting hole; 7. Mounting groove; 8. Locking piece; 9. Filter component; 10. Sealing groove; 11. Sealing ring; 12. Inlet ferrule joint; 13. Outlet ferrule joint. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-4 The utility model provides a differential pressure pipeline filter, which includes:

[0037] A filter upper cover 1, wherein a first channel 2 is provided through the filter upper cover 1, and at least two first connecting holes 3 are provided on the filter upper cover 1;

[0038] A filter lower cover 4, wherein a second channel 5 is provided therein, a second connection hole 6 is provided at a position of the filter lower cover 4 corresponding to the first connection hole 3, a mounting groove 7 is provided therein, and the second channel 5 is located at the center of the mounting groove 7;

[0039] A locking member 8, wherein the locking member 8 passes through the first connecting hole 3 and is connected to the second connecting hole 6;

[0040] A filter component 9 is installed in the installation groove 7.

[0041] The filter element 9 is a filter paper or a filter membrane. Specifically, the filter element is a filter paper.

[0042] In another embodiment, the filter component 9 is a filter membrane, and the filter membrane is an ePTFE membrane with good corrosion resistance.

[0043] The filter lower cover 4 is provided with a sealing groove 10, the sealing groove 10 is located outside the mounting groove 7, and a sealing ring 11 is provided in the sealing groove 10. The sealing groove and the mounting groove are arranged concentrically, which can improve the sealing effect.

[0044] The end of the first channel 2 is provided with an air inlet ferrule joint 12, and the end of the second channel 5 is provided with an air outlet ferrule joint 13. This facilitates the connection of the filter with the pipeline.

[0045] The first connecting hole 3 and the second connecting hole 6 are both screw holes, and the locking member 8 is a bolt, which is convenient for operation.

[0046] The first connecting hole 3 is a countersunk screw hole.

[0047] Working principle: When in use, the filter is connected to the pipeline through the air inlet ferrule joint 12 and the air outlet ferrule joint 13. When replacing the filter component 9, the locking piece 8 is loosened, the filter upper cover 1 is separated from the filter lower cover 4, the filter component 9 is taken out, and the new filter component 9 is placed in the installation 7. Finally, the filter upper cover 1 and the filter lower cover 4 are fixed using the locking piece to complete the replacement of the filter component 9.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A differential pressure pipeline filter, characterized in that: include: A filter upper cover, wherein a first channel is provided in the filter upper cover, and at least two first connecting holes are provided on the filter upper cover; A filter lower cover, wherein a second channel is provided in the filter lower cover, a second connection hole is provided in the filter lower cover at a position corresponding to the first connection hole, a mounting groove is provided in the filter lower cover, and the second channel is located at the center of the mounting groove; a locking member, the locking member passing through the first connecting hole and connected to the second connecting hole; A filter component is installed in the installation groove.

2. A differential pressure pipeline filter according to claim 1, characterized in that: The filtering component is filter paper or filter membrane.

3. A differential pressure pipeline filter according to claim 1, characterized in that: The filter lower cover is provided with a sealing groove, the sealing groove is located outside the mounting groove, and a sealing ring is provided in the sealing groove.

4. A differential pressure pipeline filter according to claim 1, characterized in that: An air inlet ferrule joint is disposed at the end of the first channel, and an air outlet ferrule joint is disposed at the end of the second channel.

5. The differential pressure pipeline filter according to claim 1, characterized in that: The first connecting hole and the second connecting hole are both screw holes, and the locking member is a bolt.

6. A differential pressure pipeline filter according to claim 5, characterized in that: The first connecting hole is a countersunk screw hole.

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