A self-cleaning filter device for large-diameter pressure regulating valve assemblies

Abstract

This utility model discloses a self-cleaning filter device for a large-diameter pressure-regulating valve assembly, relating to the field of pressure-regulating valve technology. The self-cleaning filter device for a large-diameter pressure-regulating valve assembly includes a valve body, a first flange pipe, and a second flange pipe. Both first and second flange pipes are welded to the valve body. A filter structure is located on the first flange pipe and includes a positioning ring, a mounting ring, a filter funnel, and a discharge bend. The positioning ring is fixedly connected inside the first flange pipe. Through the filter funnel, intercepted impurities enter the discharge bend under the impact of water flow, preventing impurities from accumulating in the filter funnel and affecting the filtration effect. This allows impurities to be guided inside the filter funnel, achieving the self-cleaning function of the filter structure and reducing the frequency and workload of manual cleaning. Simultaneously, the anti-overflow mesh funnel prevents impurities from re-entering the filter funnel under fluid disturbance, ensuring that the filtration effect of the filter funnel is not affected and guaranteeing the continuous and effective operation of the filter structure.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating valve technology, and in particular to a self-cleaning filter device for large-diameter pressure regulating valve assemblies. Background Technology

[0002] In industrial fluid transport and control systems, large-diameter pressure regulating valve assemblies play a crucial role. They can precisely regulate fluid pressure and ensure that the system operates in a stable and safe pressure environment. They are widely used in many fields such as petroleum, chemical, power, and metallurgy. However, in actual operation, various impurities, such as particulate matter, fibers, and rust, inevitably mix into the fluid. These impurities can seriously affect the normal operation of the pressure regulating valve assembly.

[0003] Traditional filtration structures lack effective self-cleaning functions. When impurities accumulate on the filter structure to a certain extent, they can only be cleaned manually periodically. However, in some large industrial systems, there are numerous and widely distributed pressure-regulating valve assemblies. Manual cleaning is not only labor-intensive but also difficult to do in a timely manner. If cleaning is not done in time, impurities may enter the pressure-regulating valve assembly with the fluid, causing wear and damage to key components such as valve cores and valve seats, shortening the service life of the valve assembly, and increasing equipment maintenance costs. Therefore, we propose a self-cleaning filtration device for large-diameter pressure-regulating valve assemblies. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a self-cleaning filter device for large-diameter pressure regulating valve groups. This device can solve the problem that traditional filter structures lack effective self-cleaning functions. When impurities accumulate on the filter structure to a certain extent, they can only be cleaned manually periodically. However, in some large industrial systems, there are a large number of pressure regulating valve groups that are widely distributed. Manual cleaning is not only labor-intensive, but also difficult to do in a timely manner. If cleaning is not done in time, impurities may enter the interior of the pressure regulating valve group with the fluid, causing wear and damage to key components such as valve cores and valve seats, shortening the service life of the valve group, and increasing equipment maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning filter device for large-diameter pressure regulating valve assemblies, comprising:

[0006] The valve body, flange pipe one, and flange pipe two are all welded to the valve body;

[0007] The filter structure is located on flange pipe one;

[0008] The filter structure includes a positioning ring, a mounting ring, a filter bucket, and a discharge bend. The positioning ring is fixedly connected to the inside of the flange tube, the filter bucket is fixedly connected to the inside of the mounting ring, and the mounting ring is fixedly installed on the positioning ring by bolts. The discharge bend is fixedly connected to the end of the filter bucket away from the mounting ring and communicates with the inside of the filter bucket. Multiple through holes are opened on the outer surface of the discharge bend, and an anti-overflow net bucket is fixedly installed inside the discharge bend.

[0009] Preferably, the filter structure further includes a fixing ring, a collection box, a connecting pipe, and a sealing ring. The fixing ring is fixedly connected to the outer surface of the flange pipe and communicates with the interior of the flange pipe. The connecting pipe is threadedly connected to the interior of the fixing ring. The collection box is fixedly connected to the bottom end of the connecting pipe and communicates with its interior. The top end of the connecting pipe slides into the interior of the discharge bend. The sealing ring is fixedly connected to the top end of the connecting pipe.

[0010] Preferably, the sealing ring is made of rubber.

[0011] Preferably, a pressure-reducing pilot valve is fixedly installed on the top of the valve body, and a pressure-adjusting rod is installed on the pressure-reducing pilot valve.

[0012] Preferably, two pressure gauges are externally mounted on the pressure reducing pilot valve.

[0013] Preferably, both flange pipe one and flange pipe two are fixedly connected to connecting pipes, and the ends of the two connecting pipes away from flange pipe one and flange pipe two are connected to the interior of the pressure reducing pilot valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This large-diameter pressure-stabilizing valve assembly uses a self-cleaning filter device. Through the filter bucket, the intercepted impurities enter the discharge bend under the impact of water flow, preventing impurities from accumulating in the filter bucket and affecting the filtration effect. This allows the impurities to achieve the self-cleaning function of the filter structure under the guidance inside the filter bucket, reducing the frequency and workload of manual cleaning. At the same time, the anti-overflow net bucket can prevent impurities from re-entering the filter bucket under fluid disturbance, ensuring that the filtration effect of the filter bucket is not affected and ensuring the continuous and effective operation of the filter structure. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the filter bucket structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the flange pipe of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the debris removal bend of this utility model.

[0021] Reference numerals in the attached drawings: 1. Valve body; 2. Flanged pipe one; 3. Flanged pipe two; 4. Collection box; 5. Pressure reducing pilot valve; 6. Pressure gauge; 7. Pressure adjusting rod; 8. Connecting pipe; 9. Butt joint pipe; 10. Impurity discharge bend; 11. Through hole; 12. Filter hopper; 13. Mounting ring; 14. Fixing ring; 15. Positioning ring; 16. Anti-overflow mesh hopper; 17. Sealing ring. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a self-cleaning filter device for a large-diameter pressure regulating valve assembly, comprising:

[0027] Valve body 1, flange pipe 1 2 and flange pipe 2 3, flange pipe 1 2 and flange pipe 2 3 are all welded to valve body 1;

[0028] The filter structure is located on flange pipe 2;

[0029] The filter structure includes a positioning ring 15, a mounting ring 13, a filter hopper 12, and a discharge bend 10. The positioning ring 15 is fixedly connected to the inside of the flange pipe 2. The filter hopper 12 is fixedly connected to the inside of the mounting ring 13. The mounting ring 13 is fixedly installed on the positioning ring 15 by bolts. The discharge bend 10 is fixedly connected to the end of the filter hopper 12 away from the mounting ring 13. The discharge bend 10 communicates with the inside of the filter hopper 12. Multiple through holes 11 are opened on the outer surface of the discharge bend 10. An overflow prevention net hopper 16 is fixedly installed inside the discharge bend 10.

[0030] The filter structure also includes a retaining ring 14, a collection box 4, a connecting pipe 9, and a sealing ring 17. The retaining ring 14 is fixedly connected to the outer surface of the flange pipe 2 and communicates with the interior of the flange pipe 2. The connecting pipe 9 is threadedly connected to the interior of the retaining ring 14. The collection box 4 is fixedly connected to the bottom end of the connecting pipe 9 and communicates with its interior. The top end of the connecting pipe 9 slides into the interior of the discharge bend 10. The sealing ring 17 is fixedly connected to the top end of the connecting pipe 9 and is made of rubber.

[0031] A pressure reducing pilot valve 5 is fixedly installed on the top of the valve body 1. A pressure adjusting rod 7 is installed on the pressure reducing pilot valve 5. Two pressure gauges 6 are installed on the outside of the pressure reducing pilot valve 5. Connecting pipes 8 are fixedly connected to flange pipe 1 2 and flange pipe 2 3. The ends of the two connecting pipes 8 away from flange pipe 1 2 and flange pipe 2 3 are connected to the inside of the pressure reducing pilot valve 5.

[0032] Furthermore, when using this device, the fluid medium enters the valve body 1 from the flange pipe 2. When the fluid medium flows through the filter bucket 12, the impurities in it are intercepted in the filter bucket 12. The intercepted impurities enter the discharge bend 10 under the action of water flow impact, so as to avoid the impurities affecting the filtration effect of the filter bucket 12. Multiple through holes 11 are opened on the outer surface of the discharge bend 10. When the fluid medium flows around the discharge bend 10, some fluid can enter the interior of the discharge bend 10 through the through holes 11, forming a certain water flow disturbance, which helps to flush the impurities to the bottom of the discharge bend 10. An anti-overflow net bucket 16 is fixedly installed inside the discharge bend 10 to prevent impurities from re-entering the filter bucket 12 under the fluid disturbance.

[0033] The sealing ring 17 on the connecting pipe 9 can ensure the sealing of the connection between the connecting pipe 9 and the discharge bend 10. Impurities enter the connecting pipe 9 through the discharge bend 10 and eventually fall into the collection box 4. When the impurities in the collection box 4 accumulate to a certain extent, the connecting pipe 9 can be unscrewed from the fixing ring 14 to clean the impurities in the collection box 4 and achieve the self-cleaning function.

[0034] The fluid medium enters the pressure reducing pilot valve 5 through the connecting pipe 8. The pressure reducing pilot valve 5 adjusts the opening of the valve port according to the system pressure requirements through the pressure adjusting rod 7, thereby controlling the flow and pressure of the fluid medium and realizing the pressure stabilization function. Two pressure gauges 6 are installed on the outside of the pressure reducing pilot valve 5, which can monitor the pressure at the inlet and outlet of the valve group in real time, providing operators with accurate pressure data so as to adjust the working status of the pressure reducing pilot valve 5 in a timely manner.

[0035] Through the filter bucket 12, the intercepted impurities enter the discharge bend 10 under the impact of water flow, preventing impurities from accumulating in the filter bucket 12 and affecting the filtration effect. This allows the impurities to achieve the self-cleaning function of the filter structure under the guidance inside the filter bucket 12, reducing the frequency and workload of manual cleaning. At the same time, the anti-overflow net bucket 16 can prevent impurities from re-entering the filter bucket 12 under fluid disturbance, ensuring that the filtration effect of the filter bucket 12 is not affected and ensuring the continuous and effective operation of the filter structure.

[0036] Structural Description: Valve body 1: The main structure of the device, used to connect flange pipe 1 2 and flange pipe 2 3, providing a flow channel for fluid medium, and a pressure reducing pilot valve 5 is installed on the top to achieve pressure stabilization function;

[0037] Flange 12: Welded onto valve body 1, serving as the inlet pipe for the fluid medium, with an internal filter structure, and a fixed ring 14 fixedly connected to the outer surface for installing the connecting pipe 9;

[0038] Flange pipe 2 3: Welded onto valve body 1, serving as the outlet pipe for the fluid medium, connected to connecting pipe 8, and introducing the fluid into pressure reducing pilot valve 5;

[0039] Collection box 4: It is fixedly connected to the bottom end of the connecting pipe 9 and communicates with the inside of the connecting pipe 9. It is used to collect impurities discharged from the discharge bend 10. It can be cleaned by unscrewing the connecting pipe 9.

[0040] Pressure reducing pilot valve 5: It is fixedly installed on the top of the valve body 1 and connected to flange pipe 2 and flange pipe 3 through connecting pipe 8. It adjusts the fluid flow and pressure according to the system pressure requirements to achieve pressure stabilization function.

[0041] Pressure gauge 6: Two pressure gauges 6 are installed outside the pressure reducing pilot valve 5 to monitor the pressure at the inlet and outlet of the valve group in real time and provide data reference for pressure regulation;

[0042] Pressure regulating rod 7: Installed on pressure reducing pilot valve 5, used to manually adjust the valve opening of pressure reducing pilot valve 5 to control the pressure and flow rate of the fluid medium;

[0043] Connecting pipe 8: Two connecting pipes 8 are fixedly connected to flange pipe 1 2 and flange pipe 2 3 respectively, and the other end is connected to the inside of pressure reducing pilot valve 5 for transmitting fluid medium to pressure reducing pilot valve 5;

[0044] Connector 9: Threaded connection inside the retaining ring 14, with the top end sliding into the discharge bend 10 and the bottom end connected to the collection box 4, serving as a channel for impurities to enter the collection box 4 from the discharge bend 10. The sealing ring 17 at the top ensures a seal at the connection.

[0045] Impurity discharge bend 10: It is fixedly connected to the end of the filter bucket 12 away from the mounting ring 13 and communicates with the inside of the filter bucket 12. The outer surface is opened with a through hole 11 and an anti-overflow net bucket 16 is installed inside to guide the impurities intercepted by the filter bucket 12 into the connecting pipe 9. At the same time, the water flow disturbance of the through hole 11 is used to assist in the discharge of impurities.

[0046] Through hole 11: It is opened on the outer surface of the discharge bend 10, allowing some fluid medium to enter the interior of the discharge bend 10, forming water flow disturbance and flushing impurities to the bottom of the discharge bend 10;

[0047] Filter hopper 12: It is fixedly connected inside the mounting ring 13 and located inside the flange pipe 2. It is used to intercept impurities in the fluid medium and prevent impurities from affecting the filtration effect and the operation of subsequent equipment.

[0048] Mounting ring 13: It is fixedly installed on the positioning ring 15 by bolts, and the filter bucket 12 is fixedly connected inside, providing installation support for the filter bucket 12 and facilitating disassembly and maintenance;

[0049] Fixed ring 14: Fixedly connected to the outer surface of flange pipe 2 and communicating with the inside of flange pipe 2, used for threaded connection of butt pipe 9, so that butt pipe 9 can communicate with discharge elbow 10.

[0050] Positioning ring 15: It is fixedly connected inside flange tube 2 and is used to position and support mounting ring 13 to ensure that filter bucket 12 is accurately installed in the filter position inside flange tube 2;

[0051] Anti-overflow hopper 16: Fixedly installed inside the discharge bend 10 to prevent impurities from re-entering the filter hopper 12 under fluid disturbance and to ensure that impurities are smoothly discharged into the connecting pipe 9;

[0052] Sealing ring 17: Fixedly connected to the top of the connecting pipe 9, made of rubber, to ensure the sealing of the connection between the connecting pipe 9 and the discharge bend 10 and prevent fluid medium leakage.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A self-cleaning filter device for large-diameter pressure-stabilizing valve groups, characterized by, include: Valve body (1), flange pipe one (2) and flange pipe two (3), flange pipe one (2) and flange pipe two (3) are all welded to valve body (1); The filter structure is located on flange pipe 1 (2); The filter structure includes a positioning ring (15), a mounting ring (13), a filter bucket (12), and a discharge bend (10). The positioning ring (15) is fixedly connected to the inside of the flange pipe (2), the filter bucket (12) is fixedly connected to the inside of the mounting ring (13), the mounting ring (13) is fixedly installed on the positioning ring (15) by bolts, and the discharge bend (10) is fixedly connected to the end of the filter bucket (12) away from the mounting ring (13). The discharge bend (10) is internally connected to the filter hopper (12), and multiple through holes (11) are provided on the outer surface of the discharge bend (10). An anti-overflow net hopper (16) is fixedly installed inside the discharge bend (10).

2. The self-cleaning filter device for large-diameter pressure-stabilizing valve groups according to claim 1, characterized in that: The filter structure also includes a fixing ring (14), a collection box (4), a connecting pipe (9) and a sealing ring (17). The fixing ring (14) is fixedly connected to the outer surface of the flange pipe (2) and the fixing ring (14) is in communication with the interior of the flange pipe (2). Among them, the connecting pipe (9) is threaded inside the fixing ring (14), the collection box (4) is fixedly connected to the bottom end of the connecting pipe (9) and communicates with its interior, the top end of the connecting pipe (9) slides into the interior of the discharge bend (10), and the sealing ring (17) is fixedly connected to the top end of the connecting pipe (9).

3. The self-cleaning filter device for large-diameter pressure-stabilizing valve groups according to claim 2, characterized in that: The sealing ring (17) is made of rubber.

4. The self-cleaning filter device for a large-diameter pressure regulating valve assembly according to claim 1, characterized in that: A pressure reducing pilot valve (5) is fixedly installed on the top of the valve body (1), and a pressure adjusting rod (7) is installed on the pressure reducing pilot valve (5).

5. A self-cleaning filter device for a large-diameter pressure regulating valve assembly according to claim 4, characterized in that: Two pressure gauges (6) are mounted on the outside of the pressure reducing pilot valve (5).

6. A self-cleaning filter device for a large-diameter pressure regulating valve assembly according to claim 4, characterized in that: Both flange pipe 1 (2) and flange pipe 2 (3) are fixedly connected to connecting pipes (8), and the ends of the two connecting pipes (8) away from flange pipe 1 (2) and flange pipe 2 (3) are connected to the interior of pressure reducing pilot valve (5).

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