Filtering pressure reducing valve

Abstract

The utility model discloses a filter pressure reducing valve, including valve body, the top of valve body detachably installs the valve cover, detachably installs spring seat on the valve body, be equipped with spring on spring seat, install the valve rod in the valve body, install the valve seat in the lower portion of valve rod, install the valve flap on the valve seat, one side of valve body is equipped with first filter chamber and second filter chamber, one end of valve body is equipped with the export end, one end of first filter chamber is equipped with the import end, first filter chamber and second filter chamber respectively detachably install first filter and second filter, and the top of first filter and second filter all solid is equipped with first on -off valve, and the first channel is opened between second filter chamber and valve body, one side of first filter chamber is opened second channel, and second channel is communicated with first channel, and second channel is solid and is equipped with second on -off valve, the utility model discloses through the alternate work design of double filter chambers, solved the problem that traditional single group filter structure needs to close the pipeline when maintaining, and the production efficiency is promoted.

Description

Technical Field

[0001] This utility model relates to the field of valve body technology, specifically to a filter pressure reducing valve. Background Technology

[0002] As a core component for regulating pressure in fluid pipelines, pressure reducing valves need to be paired with a filtration structure to remove impurities from the fluid and prevent wear or blockage of precision components such as valve cores and valve seats.

[0003] The existing pressure reducing valves mostly have a single-unit filter structure. When the filter element adsorbs too many impurities and needs to be cleaned or replaced, the pipeline system must be shut down and the filter components disassembled, causing the entire fluid system to be interrupted. This not only reduces production efficiency but may also lead to additional operating costs and safety hazards due to system shutdown. Utility Model Content

[0004] The main objective of this invention is to provide a filter pressure reducing valve to solve the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter pressure reducing valve, comprising a valve body, a valve cover detachably mounted on the top of the valve body, a spring seat detachably mounted on the valve body, a spring mounted on the spring seat, a valve stem mounted inside the valve body, a valve disc seat mounted below the valve stem, and a valve disc mounted on the valve disc seat; a first filter chamber and a second filter chamber are provided on one side of the valve body, an outlet end is provided at one end of the valve body, and an inlet end is provided at one end of the first filter chamber; a first filter and a second filter are detachably mounted in the first filter chamber and the second filter chamber respectively, and a first on / off valve is fixedly mounted on the top of each of the first filter and the second filter; a first channel is opened between the second filter chamber and the valve body; a second channel is opened on one side of the first filter chamber, the second channel is connected to the first channel, and a second on / off valve is fixedly mounted on the second channel.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the bottom of the valve seat, the first filter chamber and the second filter chamber can be detachably fitted with plugs.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: a diaphragm is detachably installed between the valve cover and the valve body, and the valve cover, diaphragm and valve body are fixedly connected by fastening bolts.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a third channel is opened between the inlet end of one side of the first filter chamber and the inlet ends of the first filter chamber and the second filter chamber; a fourth channel is opened between the valve body and the outlet end.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: a controller is fixedly mounted on one outer wall of the valve body.

[0010] The beneficial effects of this utility model are as follows: The dual-filter chamber alternating working design of this utility model solves the problem that the pipeline needs to be shut down during maintenance of the traditional single-group filter structure, thereby improving production efficiency and reducing the cost losses and safety hazards caused by downtime. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0013] See attached diagram. Figures 1 to 2 This embodiment of a filter pressure reducing valve includes a valve body 1, a valve cover 2 detachably mounted on the top of the valve body 1, a spring seat 10 detachably mounted on the valve body 1, a spring 11 mounted on the spring seat 10, a valve stem 12 installed inside the valve body 1, a valve disc seat 13 installed below the valve stem 12, and a valve disc 130 mounted on the valve disc seat 13; a first filter chamber 4 and a second filter chamber 5 are provided on one side of the valve body 1, an outlet end 14 is provided at one end of the valve body 1, and an inlet end 40 is provided at one end of the first filter chamber 4; a first filter 41 and a second filter 50 are detachably mounted in the first filter chamber 4 and the second filter chamber 5, respectively, and a first on / off valve 42 is fixedly mounted on the top of both the first filter 41 and the second filter 50; a first channel 52 is opened between the second filter chamber 5 and the valve body 1; a second channel 43 is opened on one side of the first filter chamber 4, the second channel 43 is connected to the first channel 52, and a second on / off valve 44 is fixedly mounted on the second channel 43.

[0014] Furthermore, the bottom of the valve seat 13, the first filter chamber 4, and the second filter chamber 5 can be detachably fitted with plugs 6.

[0015] Furthermore, a diaphragm 3 is detachably installed between the valve cover 2 and the valve body 1, and the valve cover 2, the diaphragm 3 and the valve body 1 are fixedly connected by fastening bolts 30.

[0016] Furthermore, a third channel 45 is opened between the inlet end 40 on one side of the first filter chamber 4 and the inlet end 40 of the first filter chamber 4 and the second filter chamber 5; a fourth channel 15 is opened between the valve body 1 and the outlet end 14.

[0017] Furthermore, a controller is fixedly mounted on one side of the outer wall of the valve body 1.

[0018] In use, the fluid to be treated enters from the inlet end 40 of the first filter chamber, and is diverted to the first filter chamber 4 and the second filter chamber 5 through the third channel 45. The third channel 45 is directly connected to the inlet end and the inlet of the two filter chambers to ensure unobstructed flow. The first filter 41 in the first filter chamber 4 and the second filter 50 in the second filter chamber 5 filter the fluid, intercepting impurities and preventing wear or blockage of precision components such as valve cores and valve discs. The first on / off valve 42 at the top of each filter independently controls the opening and closing of the corresponding filter chamber, allowing a filter chamber to be closed for maintenance without affecting the operation of the other chamber. The filtered fluid in the first filter chamber 4 flows out through the second channel 43 to the first channel 52, and finally enters the valve body 1 for pressure regulation. The pressure regulation principle inside the valve body can be considered as existing technology and will not be elaborated here.

[0019] When the first filter 41 adsorbs too many impurities, the corresponding first on / off valve 42 and the second on / off valve 44 on the second channel 43 are closed, and the impurities are discharged through the bottom removable plug 6 or the first filter 41 is directly disassembled for cleaning and replacement; during the switching process, the second filter chamber 5 continuously supplies liquid to the valve body 1 through the first channel 51 to achieve uninterrupted operation of the entire fluid system. When the second filter 50 adsorbs too many impurities, it closes the corresponding first on / off valve 42 and opens the second on / off valve 44. The first filter chamber 4 continuously supplies liquid to the valve body 1 through the second channel 43, so as to realize the uninterrupted operation of the entire fluid system.

[0020] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A filter pressure reducing valve, comprising a valve body (1), a valve cover (2) detachably mounted on the top of the valve body (1), a spring (11) seat (10) detachably mounted on the valve body (1), a spring (11) mounted on the spring (11) seat (10), a valve stem (12) mounted inside the valve body (1), a valve disc seat (13) mounted below the valve stem (12), and a valve disc (130) mounted on the valve disc seat (13); characterized in that: A first filter chamber (4) and a second filter chamber (5) are provided on one side of the valve body (1). An outlet end (14) is provided at one end of the valve body (1), and an inlet end (40) is provided at one end of the first filter chamber (4). A first filter (41) and a second filter (50) are detachably installed in the first filter chamber (4) and the second filter chamber (5), respectively. A first on / off valve (42) is fixedly provided on the top of the first filter (41) and the second filter (50). A first channel (51) is opened between the second filter chamber (5) and the valve body (1). A second channel (43) is opened on one side of the first filter chamber (4). The second channel (43) is connected to the first channel (51). A second on / off valve (44) is fixedly provided on the second channel (43).

2. The filter pressure reducing valve according to claim 1, characterized in that: The bottom of the valve seat (13), the first filter chamber (4), and the second filter chamber (5) can be detachably fitted with plugs (6).

3. A filter pressure reducing valve according to claim 1, characterized in that: A diaphragm (3) is detachably installed between the valve cover (2) and the valve body (1), and the valve cover (2), the diaphragm (3) and the valve body (1) are fixedly connected by fastening bolts (30).

4. A filter pressure reducing valve according to claim 1, characterized in that: A third channel (45) is opened between the inlet end (40) on one side of the first filter chamber (4) and the inlet end of the first filter chamber (4) and the second filter chamber (5); a fourth channel (15) is opened between the valve body (1) and the outlet end (14).

5. A filter pressure reducing valve according to claim 1, characterized in that: A controller is fixed on one side of the outer wall of the valve body (1).

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