High-pressure stop valve capable of replacing filter element on line

Abstract

The utility model discloses a high-pressure stop valve with a filter element capable of being replaced on line, and relates to the field of high-pressure stop valves. The high-pressure stop valve with the filter element capable of being replaced on line comprises a stop valve body, a pipe connector, a stop valve body before filtering, a stop valve body after filtering, a bypass stop valve body and a filtering unit. According to the high-pressure stop valve with the filter element capable of being replaced on line, the stop valve is sealed through the pre-filtering stop valve, the post-filtering stop valve and the bypass stop valve, the stop valve can be conveniently sealed when the filter element is replaced, the filter element can be detached from the stop valve by detaching the shell, and on-line replacement of the filter element and replacement of the filter element are achieved; the situation that the whole stop valve needs to be disassembled to disassemble and replace the filter element is avoided, so that the filter element replacement process is simple and convenient, the replacement speed is high, and normal use is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure stop valves, in particular to a high-pressure stop valve with an online replaceable filter element. Background Art

[0002] A high-pressure stop valve is a control component that works under high-pressure conditions and is mainly used to cut off, distribute and change the flow direction of the medium.

[0003] When the high-pressure stop valve is in use, under the condition of high requirements for liquid, a filter element is installed in the high-pressure stop valve to filter the liquid. However, in the prior art, the filter element is usually installed in the high-pressure stop valve. When the filter element is used for a long time, in order to ensure the filtration efficiency, the filter element needs to be replaced. At present, the high-pressure stop valve needs to be disassembled before the filter element can be disassembled. The overall disassembly process is cumbersome. At the same time, when disassembling the high-pressure stop valve, the pipes on both sides need to be sealed. The overall process takes a long time, affecting normal use. Therefore, we propose a high-pressure stop valve with an online replaceable filter element. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a high-pressure stop valve with an online replaceable filter element, which solves the problem that the filter element needs to be replaced after the high-pressure stop valve is disassembled, and the overall disassembly process is cumbersome. At the same time, when disassembling the high-pressure stop valve, the pipes on both sides need to be sealed, which takes a long time as a whole and affects normal use.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-pressure stop valve with online replaceable filter element, comprising a stop valve, a pipe joint, a pre-filtration stop valve, a post-filtration stop valve, a bypass stop valve and a filter unit, wherein the pipe joint is installed on both sides of the stop valve, the pre-filtration stop valve and the bypass stop valve are installed at the bottom of the stop valve, the post-filtration stop valve is installed on the side of the stop valve, and the filter unit is arranged above the stop valve.

[0006] The filter unit includes a housing and a filter element, wherein the housing is installed above the stop valve, the filter element is located on the inner wall of the housing, and the filter element is inserted into the stop valve;

[0007] The filter element is communicated with the flow channel in the stop valve, and is communicated with the pre-filtration stop valve, the post-filtration stop valve, and the bypass stop valve through the flow channel.

[0008] Preferably, a first connecting flow channel is provided in the stop valve, and the pipe joints on both sides are connected via the first connecting flow channel.

[0009] Preferably, a second connecting flow channel and a third connecting flow channel are provided in the stop valve, and the second connecting flow channel and the third connecting flow channel are connected to the first connecting flow channel.

[0010] Preferably, a fourth connecting flow channel is provided in the stop valve, and the fourth connecting flow channel is connected to the third connecting flow channel and the second connecting flow channel.

[0011] Preferably, the pre-filtration stop valve, the post-filtration stop valve and the bypass stop valve are all transmission-connected with sealing rods, which are respectively inserted into the corresponding second connecting flow channel, the third connecting flow channel and the fourth connecting flow channel.

[0012] Preferably, a mounting groove is provided in the stop valve, and the mounting groove is used for inserting a filter element.

[0013] Preferably, a slot is provided in the stop valve, and a positioning plug is fixedly connected to the bottom end surface of the filter element, and the positioning plug is plugged into the slot.

[0014] Preferably, the slots are respectively connected to the second connecting flow channel and the fourth connecting flow channel.

[0015] Preferably, a detection hole is opened in the second connecting flow channel, and the detection hole is connected to a pressure difference transmitter.

[0016] The utility model discloses a high-pressure stop valve with an online replaceable filter element, which has the following beneficial effects:

[0017] When the filter element is replaced, the filter element is replaced, and the filter element is replaced, so the filter element is replaced. When the filter element is replaced, the filter element is replaced, and ... BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the stop valve of the utility model;

[0021] Figure 3 This is a schematic diagram of the connecting flow channel of the utility model.

[0022] In the figure: 1. Stop valve; 101. Mounting groove; 2. Pipe joint; 201. First connecting channel; 3. Stop valve before filtration; 301. Second connecting channel; 4. Stop valve after filtration; 401. Third connecting channel; 5. Bypass stop valve; 501. Fourth connecting channel; 6. Filter unit; 601. Housing; 602. Filter element; 603. Positioning plug; 604. Slot; 7. Detection hole. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] The embodiment of the present application solves the problem of replacing the filter element 602 by providing a high-pressure stop valve with an online replaceable filter element. Currently, the high-pressure stop valve 1 needs to be disassembled before the filter element 602 can be disassembled. The overall disassembly process is cumbersome. At the same time, when disassembling the high-pressure stop valve 1, the pipes on both sides need to be sealed, which takes a long time as a whole and affects normal use. The stop valve 1 is sealed by the pre-filtration stop valve 3, the post-filtration stop valve 4 and the bypass stop valve 5, so that the stop valve 1 is sealed when the filter element 602 is removed. The filter element 602 can be removed from the stop valve 1 by removing the outer shell 601, so that the filter element 602 can be replaced online. By replacing the filter element 602, the need to disassemble the stop valve 1 as a whole before removing and replacing the filter element 602 is avoided, so that the process of replacing the filter element 602 is relatively simple and convenient, and the replacement speed is relatively fast without affecting normal use.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The embodiment of the utility model discloses a high-pressure stop valve with an online replaceable filter element.

[0027] According to the attached Figure 1-3As shown, it includes a stop valve 1, a pipe joint 2, a stop valve before filtration 3, a stop valve after filtration 4, a bypass stop valve 5 and a filter unit 6. The pipe joint 2 is installed on both sides of the stop valve 1, the stop valve before filtration 3 and the bypass stop valve 5 are installed at the bottom of the stop valve 1, the stop valve after filtration 4 is installed on the side of the stop valve 1, and the filter unit 6 is arranged above the stop valve 1. The stop valve 1 is sealed by the stop valve before filtration 3, the stop valve after filtration 4 and the bypass stop valve 5, so that the stop valve 1 is sealed when the filter element 602 is removed, thereby realizing online replacement of the filter element 602.

[0028] The filter unit 6 includes a housing 601 and a filter element 602 . The housing 601 is installed above the stop valve 1 . The filter element 602 is located on the inner wall of the housing 601 , and the filter element 602 is inserted into the stop valve 1 .

[0029] The filter element 602 is connected to the flow channel in the stop valve 1, and is connected to the pre-filtration stop valve 3, the post-filtration stop valve 4, and the bypass stop valve 5 through the flow channel. The flow channel is sealed by the pre-filtration stop valve 3, the post-filtration stop valve 4 and the bypass stop valve 5 to prevent liquid from entering the filter element 602. At this time, the filter element 602 can be removed from the stop valve 1 by removing the outer shell 601, and the filter element 602 can be replaced, avoiding the need to disassemble the stop valve 1 as a whole before disassembling and replacing the filter element 602, making the process of replacing the filter element 602 simpler and more convenient, and its replacement speed is faster, and does not affect normal use.

[0030] A first connecting flow channel 201 is provided in the stop valve 1 , and the pipe joints 2 on both sides are connected via the first connecting flow channel 201 . The pipeline liquid flows through the two pipe joints 2 via the first connecting flow channel 201 for normal liquid transportation.

[0031] A second connecting flow channel 301 and a third connecting flow channel 401 are defined in the stop valve 1 . The second connecting flow channel 301 and the third connecting flow channel 401 are in communication with the first connecting flow channel 201 .

[0032] A fourth connecting flow channel 501 is provided in the stop valve 1 , and the fourth connecting flow channel 501 is connected to the third connecting flow channel 401 and the second connecting flow channel 301 .

[0033] The pre-filtration stop valve 3, the post-filtration stop valve 4, and the bypass stop valve 5 are all connected to sealing rods, which are respectively inserted into the corresponding second connecting flow channel 301, the third connecting flow channel 401, and the fourth connecting flow channel 501. The pre-filtration stop valve 3 seals the first connecting flow channel 201 and the inlet pipe joint 2 to prevent liquid circulation;

[0034] The first connecting flow channel 201 is sealed by the post-filtration stop valve 4, so that the pipe joint 2 flows through the first connecting flow channel 201, the second connecting flow channel 301 and the third connecting flow channel 401, and the liquid is filtered by the filter element 602;

[0035] The fourth connecting flow channel 501 is sealed by the bypass stop valve 5, so that the liquid can flow through the first connecting flow channel 201 for normal liquid transmission;

[0036] The first connecting channel 201, the second connecting channel 301, the third connecting channel 401 and the fourth connecting channel 501 are sealed by the pre-filtration stop valve 3, the post-filtration stop valve 4 and the bypass stop valve 5, thereby preventing liquid from entering the filter element 602, making it easy to replace the filter element 602 online.

[0037] The stop valve 1 is provided with a mounting groove 101 , which is used for plugging the filter element 602 . The mounting groove 101 facilitates quick installation of the filter element 602 .

[0038] A slot 604 is provided in the stop valve 1, and a positioning plug 603 is fixedly connected to the bottom end face of the filter element 602. The positioning plug 603 is inserted into the slot 604. By inserting the positioning plug 603 into the slot 604, the filter element 602 is connected to the second connecting flow channel 301 and the fourth connecting flow channel 501.

[0039] The slot 604 is connected to the second connecting channel 301 and the fourth connecting channel 501 respectively.

[0040] A detection hole 7 is provided in the second connecting flow channel 301, and the detection hole 7 is connected to a pressure differential indicator. The pressure differential indicator is an existing mature device and will not be elaborated in this application. The water pressure in the second connecting flow channel 301 is detected by the pressure differential indicator to determine whether the second connecting flow channel 301 is to be isolated. Once isolated, the filter element 602 can be disassembled.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure stop valve with an online replaceable filter element, characterized in that: The invention comprises a stop valve (1), a pipe joint (2), a pre-filtration stop valve (3), a post-filtration stop valve (4), a bypass stop valve (5) and a filter unit (6), wherein the pipe joint (2) is installed on both sides of the stop valve (1), the pre-filtration stop valve (3) and the bypass stop valve (5) are installed at the bottom of the stop valve (1), the post-filtration stop valve (4) is installed on the side of the stop valve (1), and the filter unit (6) is arranged above the stop valve (1). The filter unit (6) comprises a housing (601) and a filter element (602), wherein the housing (601) is mounted above the stop valve (1), the filter element (602) is located on the inner wall of the housing (601), and the filter element (602) is inserted into the stop valve (1); The filter element (602) is in communication with the flow channel in the stop valve (1), and is in communication with the pre-filtration stop valve (3), the post-filtration stop valve (4), and the bypass stop valve (5) through the flow channel.

2. A high-pressure stop valve with an online replaceable filter element according to claim 1, characterized in that: A first connecting flow channel (201) is provided in the stop valve (1), and the pipe joints (2) on both sides are connected via the first connecting flow channel (201).

3. A high-pressure stop valve with an online replaceable filter element according to claim 2, characterized in that: The stop valve (1) is provided with a second connecting flow channel (301) and a third connecting flow channel (401), and the second connecting flow channel (301) and the third connecting flow channel (401) are connected to the first connecting flow channel (201).

4. A high-pressure stop valve with an online replaceable filter element according to claim 3, characterized in that: The stop valve (1) is provided with a fourth connecting flow channel (501), and the fourth connecting flow channel (501) is connected to the third connecting flow channel (401) and the second connecting flow channel (301).

5. A high-pressure stop valve with an online replaceable filter element according to claim 4, characterized in that: The pre-filtration stop valve (3), the post-filtration stop valve (4) and the bypass stop valve (5) are all connected to sealing rods in a transmission manner, and the sealing rods are respectively inserted into the corresponding second connecting flow channel (301), the third connecting flow channel (401) and the fourth connecting flow channel (501).

6. A high-pressure stop valve with an online replaceable filter element according to claim 5, characterized in that: The stop valve (1) is provided with a mounting groove (101), and the mounting groove (101) is used for plugging in a filter element (602).

7. A high-pressure stop valve with an online replaceable filter element according to claim 6, characterized in that: A slot (604) is provided in the stop valve (1), and a positioning plug (603) is fixedly connected to the bottom end surface of the filter element (602), and the positioning plug (603) is inserted into the slot (604).

8. The high-pressure stop valve with online replaceable filter element according to claim 7, characterized in that: The slot (604) is respectively connected to the second connecting channel (301) and the fourth connecting channel (501).

9. The high-pressure stop valve with online filter element replacement according to claim 8, characterized in that: A detection hole (7) is provided in the second connecting flow channel (301), and the detection hole (7) is connected to a pressure difference transmitter.

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