A quick-release pressure self-regulating large-diameter valve assembly device

Abstract

This utility model discloses a quick-release pressure self-regulating large-diameter valve assembly device, relating to the field of valve technology. The quick-release pressure self-regulating large-diameter valve assembly device includes a large-diameter nitrogen-sealed self-regulating valve body, a valve cover, and multiple first fixing bolts. The large-diameter nitrogen-sealed self-regulating valve body has two clamp assemblies at both the inlet and outlet. Each clamp assembly includes a pipe body, an upper clamp, a lower clamp, and a fixing block. A fixing block is fixedly installed on the outer wall of one end of the lower clamp. By loosening the second fixing bolt in the clamp assembly, the upper clamp is rotated around the fixing block to open. Then, the pipe body slides outward along the pipe body's sliding groove. Because the limiting block slides within the L-shaped limiting groove, the pipe body can be smoothly disassembled in the correct direction, thus achieving a quick disassembly function. This simple and quick disassembly avoids the extreme difficulty of loosening rusted or seized bolts when valve disassembly and maintenance are required.

Description

Technical Field

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

[0002] In the industrial production field, fluid transport systems are widely used in many industries such as petrochemicals, power, metallurgy, and water supply and drainage. Large-diameter valves, as key control components, play a crucial role in the stable operation of the entire system. Large-diameter nitrogen-sealed self-regulating valves, with their characteristics of not requiring external energy to drive and being able to automatically adjust according to the fluid pressure in the system, are widely used in scenarios such as nitrogen sealing protection of storage tanks. However, with the continuous expansion of industrial production scale and the increasing demand for efficient equipment maintenance,

[0003] The connection methods between traditional large-diameter nitrogen-sealed self-operated control valves and pipelines are usually quite complex. A common method is flange connection. This method requires multiple bolt holes to be drilled on the flanges of both the valve body and the pipeline. Bolts are inserted and tightened with nuts to achieve the connection. During installation, a significant amount of time and effort is required to align the bolt holes on the flanges. Due to the large size of the flanges on large-diameter valves and limited operating space, this process becomes more difficult and inefficient. Furthermore, bolts are prone to rusting and seizing after long-term exposure to fluid pressure, vibration, and harsh environmental corrosion. When valve disassembly and maintenance are required, rusted or seized bolts are extremely difficult to loosen, often requiring additional tools, and sometimes even destructive removal of some bolts. This not only prolongs disassembly time but may also damage the flanges of the valve and pipeline, increasing maintenance costs and equipment downtime. 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 quick-release pressure self-regulating large-diameter valve assembly device. This device solves the problem of opening multiple bolt holes on the flange of the valve body and pipeline, and connecting them by inserting bolts and tightening them with nuts. During the installation process, a lot of time and effort is required to align the bolt holes on the flange. Due to the large size of the flange of the large-diameter valve and the limited operating space, this process becomes more difficult and the installation efficiency is low. Furthermore, after long-term exposure to fluid pressure impact, vibration, and corrosion from harsh environments, bolts are prone to rusting and seizing. When the valve needs to be disassembled for maintenance, rusted or seized bolts are extremely difficult to loosen, often requiring the use of additional tools, and sometimes even requiring destructive removal of some bolts. This not only prolongs the disassembly time, but may also damage the flange of the valve and pipeline, increasing maintenance costs and equipment downtime.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-release pressure self-regulating large-diameter valve group device, comprising a large-diameter nitrogen-sealed self-regulating valve body, a valve cover and multiple first fixing bolts, wherein the large-diameter nitrogen-sealed self-regulating valve body is provided with two clamping assemblies at both the inlet and outlet.

[0006] The clamp assembly includes a pipe body, an upper clamp, a lower clamp, and a fixing block. A fixing block is fixedly installed on the outer wall of one end of the lower clamp. A pipe body slide groove is opened on the outer wall of the upper inlet of the large-diameter nitrogen-sealed self-regulating valve body. Two L-shaped limiting grooves are opened on the inner wall of the pipe body slide groove. Grooves are opened at the upper inlet of the large-diameter nitrogen-sealed self-regulating valve body and on the outer wall of the pipe body near the large-diameter nitrogen-sealed self-regulating valve body.

[0007] Among them, two limiting blocks are fixedly connected to the outer wall of the end of the pipeline body close to the body of the large-diameter nitrogen-sealed self-regulating valve. The outer walls of the upper and lower clamps are fixedly connected to protrusions. The protrusions on the upper clamp are bolted to two second fixing bolts. The same clamp assembly is set at the outlet of the large-diameter nitrogen-sealed self-regulating valve body as at the inlet.

[0008] Preferably, one end of the upper clamp is rotatably connected to the outer wall of the fixing block;

[0009] The outer wall of one end of the pipe body is slidably connected to the inside of the pipe body groove.

[0010] Preferably, the two grooves cooperate to form a clamp placement groove, and the sealing ring on the outer wall of the end of the pipeline body close to the body of the large-diameter nitrogen-sealed self-regulating valve contacts the inner wall of the slide groove of the pipeline body;

[0011] The upper and lower clamps fit together and are connected to two grooves to form the clamp placement slot.

[0012] Preferably, the outer walls of the two limiting blocks are slidably connected to the interior of the corresponding L-shaped limiting grooves;

[0013] The upper and lower clamps are connected by two protrusions and two second fixing bolts, and the interior of the main pipe body is connected to the inlet of the main body of the large-diameter nitrogen-sealed self-regulating valve.

[0014] Preferably, the lower outer wall of the valve cover is threaded with a plurality of first fixing bolts.

[0015] Preferably, the valve cover is connected to the upper end of the body of the large-diameter nitrogen-sealed self-regulating valve by a plurality of first fixing bolts.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This quick-release pressure self-regulating large-diameter valve assembly device allows for easy disassembly by loosening the second fixing bolt in the clamp assembly, rotating the upper clamp around the fixing block to open it, and then sliding the pipeline body outward along the pipeline body slide groove. Since the limit block slides in the L-shaped limit groove, it ensures that the pipeline body can be easily disassembled in the correct direction, thus achieving the function of quick disassembly. This disassembly is simple and quick, avoiding the difficulty of loosening rusted or sewn bolts when valve disassembly and maintenance are required. It effectively reduces the workload of the staff, while reducing maintenance costs and equipment downtime. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the external structure of the upper clamp of this utility model;

[0021] Figure 3 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the internal structure of the large-diameter nitrogen-sealed self-regulating valve of this utility model.

[0023] Reference numerals in the attached drawings: 1. Body of large-diameter nitrogen-sealed self-regulating valve; 2. Pipeline body; 3. Valve cover; 4. First fixing bolt; 5. Upper clamp; 6. Lower clamp; 7. Fixing block; 8. Second fixing bolt; 9. Protrusion; 10. Pipeline body groove; 11. Groove; 12. Limiting block; 13. L-shaped limiting groove. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Please see Figure 1-4 This utility model provides a technical solution: a quick-release pressure self-regulating large-diameter valve group device, including a large-diameter nitrogen-sealed self-regulating valve body 1, a valve cover 3 and multiple first fixing bolts 4;

[0029] The large-diameter nitrogen-sealed self-regulating valve body 1 is equipped with two clamping assemblies at both the inlet and outlet.

[0030] The clamp assembly includes a pipe body 2, an upper clamp 5, a lower clamp 6, and a fixing block 7. The fixing block 7 is fixedly installed on the outer wall of one end of the lower clamp 6. The groove at one end of the upper clamp 5 is rotatably connected to the outer wall of the fixing block 7. A pipe body slide groove 10 is provided on the outer wall of the upper inlet of the large-diameter nitrogen-sealed self-regulating valve body 1. Two L-shaped limiting grooves 13 are provided on the inner wall of the pipe body slide groove 10. The outer wall of one end of the pipe body 2 is slidably connected to the inside of the pipe body slide groove 10. Grooves 11 are provided at the upper inlet of the large-diameter nitrogen-sealed self-regulating valve body 1 and on the outer wall of the pipe body 2 near the large-diameter nitrogen-sealed self-regulating valve body 1. The two grooves 11 cooperate to form a clamp placement groove. A sealing ring on the outer wall of the pipe body 2 near the large-diameter nitrogen-sealed self-regulating valve body 1 is connected to the pipe body slide groove. The inner wall of the pipe body 2 is in contact with the upper clamp 5 and the lower clamp 6. The two grooves 11 are fitted together to form the clamp placement groove. Two limiting blocks 12 are fixedly connected to the outer wall of the pipe body 2 near the large-diameter nitrogen-sealed self-regulating valve body 1. The outer walls of the two limiting blocks 12 are slidably connected to the interior of the corresponding L-shaped limiting grooves 13. The outer walls of the upper clamp 5 and the lower clamp 6 are fixedly connected to the protrusions 9. The protrusions 9 on the upper clamp 5 are bolted to two second fixing bolts 8. The upper clamp 5 and the lower clamp 6 are connected to each other through the two protrusions 9 and the two second fixing bolts 8. The interior of the pipe body 2 is connected to the interior of the inlet of the large-diameter nitrogen-sealed self-regulating valve body 1. The same clamp assembly as the inlet is set at the outlet of the large-diameter nitrogen-sealed self-regulating valve body 1.

[0031] Among them, the lower outer wall of the valve cover 3 is threaded with multiple first fixing bolts 4, and the valve cover 3 is connected to the upper end of the body 1 of the large-diameter nitrogen-sealed self-regulating valve through multiple first fixing bolts 4.

[0032] Furthermore, when using this device, firstly, during installation, align the end of the pipe body 2 with the sealing ring, limiting block 12, and groove 11 with the pipe body slide groove 10 on the large-diameter nitrogen-sealed self-regulating valve body 1, so that the limiting block 12 is aligned with the opening of the L-shaped limiting groove 13. Then, slide the pipe body 2 along the pipe body slide groove 10 towards the large-diameter nitrogen-sealed self-regulating valve body 1. When the pipe body 2 has slid into place, the groove 11 on the pipe body 2 and the groove 11 on the large-diameter nitrogen-sealed self-regulating valve body 1 will fit together perfectly. While forming the complete clamp placement groove, rotate the pipe body 2 to allow the limiting block 12 to enter the L-shaped limiting groove 13. Then, rotate the upper clamp 5 to close it with the lower clamp 6, and fit the upper clamp 5 and lower clamp 6 onto the outside of the clamp placement groove. Then, use the second fixing bolt 8 to pass through the protrusion 9 of the upper clamp 5 and lower clamp 6 and tighten it. Through the tightening action of the upper clamp 5 and lower clamp 6, the pipe body 2 is tightly connected to the large-diameter nitrogen-sealed self-regulating valve body 1. At the same time, the sealing ring on the pipe body 2 is tightly connected to the inner wall of the pipe body slide groove 10. The first fixing bolt 8 ensures the sealing of the connection and prevents fluid leakage. When disassembly is required, the second fixing bolt 8 is loosened, the upper clamp 5 is rotated around the fixing block 7 to open, and then the pipe body 2 is slid outward along the pipe body slide groove 10. Since the limiting block 12 slides in the L-shaped limiting groove 13, the pipe body 2 can be disassembled smoothly in the correct direction, thus achieving the function of quick disassembly. During the operation of the entire device, the large-diameter nitrogen-sealed self-regulating valve body 1 uses its own pressure self-regulation function to automatically regulate the pressure of the fluid transported through the pipe body 2. When the fluid pressure in the pipeline changes, the pressure regulating mechanism inside the large-diameter nitrogen-sealed self-regulating valve body 1 will automatically adjust the position of the valve core according to the pressure change, thereby changing the fluid flow area and realizing automatic pressure regulation to ensure that the fluid pressure is stable within the set range and meets the needs of industrial production. The valve cover 3 is fixed to the upper end of the large-diameter nitrogen-sealed self-regulating valve body 1 by the first fixing bolt 4 to protect the internal pressure regulating mechanism from external interference and ensure its normal operation.

[0033] Loosen the second fixing bolt 8 in the clamp assembly, rotate the upper clamp 5 around the fixing block 7 to open it, and then slide the pipe body 2 outward along the pipe body slide groove 10. Since the limiting block 12 slides in the L-shaped limiting groove 13, it ensures that the pipe body 2 can be disassembled smoothly in the correct direction, thereby achieving the function of quick disassembly. This disassembly is simple and quick, avoiding the difficulty of loosening rusted or sewn bolts when valves need to be disassembled and maintained. It effectively reduces the workload of the staff, and at the same time reduces the maintenance cost and equipment downtime.

[0034] Structural Description: The main body 1 of the large-diameter nitrogen-sealed self-regulating valve: As the core of the entire valve assembly, it undertakes the key function of pressure self-regulation. Its upper end is provided with a structure for connecting the valve cover 3. It is connected to the valve cover 3 by multiple first fixing bolts 4, which facilitates the disassembly of the valve cover 3 for inspection and maintenance of the internal structure. Special designs are made at the inlet and outlet, with pipe body sliding grooves 10 and two L-shaped limiting grooves 13 on the inner wall. At the same time, grooves 11 are opened on the outer wall at the inlet and outlet. These structures provide a basis for the installation and fixation of the clamp assembly.

[0035] Valve cover 3: It mainly serves to protect the internal structure of the large-diameter nitrogen-sealed self-regulating valve body 1. It is tightly connected to the upper end of the large-diameter nitrogen-sealed self-regulating valve body 1 through multiple first fixing bolts 4 to form a closed space, preventing external impurities from entering and affecting the normal operation of the valve. At the same time, it also provides a stable working environment for the internal pressure regulating components.

[0036] First fixing bolt 4: used to firmly fix the valve cover 3 to the body 1 of the large-diameter nitrogen-sealed self-operated regulating valve. The connection is made by thread, which ensures the reliability and sealing of the connection. The valve cover 3 can be disassembled and installed by turning the first fixing bolt 4.

[0037] Pipe body 2: One end of its outer wall slides into the pipe body groove 10 on the large-diameter nitrogen-sealed self-regulating valve body 1, allowing it to move smoothly within the groove and facilitating installation and disassembly with the large-diameter nitrogen-sealed self-regulating valve body 1. A sealing ring is provided on the outer wall of the end near the large-diameter nitrogen-sealed self-regulating valve body 1, which contacts the inner wall of the pipe body groove 10 to provide a seal and prevent fluid leakage. At the same time, two limiting blocks 12 are fixedly connected to the outer wall of this end, which cooperate with the L-shaped limiting groove 13 to restrict the movement direction and position of the pipe body 2 and ensure the accuracy of installation. In addition, a groove 11 is provided on the outer wall of the end of the pipe body 2 near the large-diameter nitrogen-sealed self-regulating valve body 1, which cooperates with the groove 11 on the large-diameter nitrogen-sealed self-regulating valve body 1 to form a clamp placement groove for placing the upper clamp 5 and the lower clamp 6.

[0038] Upper clamp 5 and lower clamp 6: The two cooperate with each other to fix the pipeline body 2 and the large-diameter nitrogen-sealed self-regulating valve body 1. A fixing block 7 is fixedly installed on the outer wall of one end of the lower clamp 6. The groove of one end of the upper clamp 5 is rotatably connected to the outer wall of the fixing block 7, so that the upper clamp 5 can rotate around the fixing block 7, which is convenient for opening and closing. A protrusion 9 is fixedly connected to the outer wall of one end of both the upper clamp 5 and the lower clamp 6. The two protrusions 9 are connected together by two second fixing bolts 8, thereby achieving the fastening of the upper clamp 5 and the lower clamp 6, and tightly connecting the pipeline body 2 and the large-diameter nitrogen-sealed self-regulating valve body 1.

[0039] Fixed block 7: Fixedly installed on the lower clamp 6, providing a rotation fulcrum for the upper clamp 5, and ensuring the stability of the rotational connection between the upper clamp 5 and the lower clamp 6;

[0040] Second fixing bolt 8: The protrusion 9 is used to connect the upper clamp 5 and the lower clamp 6. By tightening or loosening the second fixing bolt 8, the clamp can be tightened and disassembled, thereby controlling the connection and separation between the pipeline body 2 and the large-diameter nitrogen-sealed self-regulating valve body 1.

[0041] Protrusion 9: It is fixed to the outer wall of one end of the upper clamp 5 and the lower clamp 6 respectively, providing a connection part for the second fixing bolt 8. The upper and lower clamps are connected by the second fixing bolt 8, so that the clamp can be tightly wrapped in the clamp placement groove, enhancing the connection strength.

[0042] Limiting block 12: It is fixedly connected to the outer wall of one end of the pipeline body 2 near the large-diameter nitrogen-sealed self-regulating valve body 1, and is slidably connected to the inside of the L-shaped limiting groove 13. During installation, the limiting block 12 slides along the L-shaped limiting groove 13 to restrict the movement direction and position of the pipeline body 2, prevent the pipeline body 2 from shifting or rotating during installation, and ensure the accuracy and stability of installation.

[0043] 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 quick-release pressure self-adjusting large-diameter valve group device, comprising a large-diameter nitrogen-sealed self-adjusting valve body (1), a valve cover (3) and a plurality of first fixing bolts (4), characterized in that: The large-diameter nitrogen-sealed self-regulating valve body (1) is equipped with two clamping assemblies at both the inlet and outlet. The clamp assembly includes a pipe body (2), an upper clamp (5), a lower clamp (6) and a fixing block (7). The fixing block (7) is fixedly installed on the outer wall of one end of the lower clamp (6). The outer wall of the upper inlet of the large-diameter nitrogen-sealed self-regulating valve body (1) is provided with a pipe body slide groove (10). The inner wall of the pipe body slide groove (10) is provided with two L-shaped limiting grooves (13). The upper inlet of the large-diameter nitrogen-sealed self-regulating valve body (1) and the outer wall of the pipe body (2) near the large-diameter nitrogen-sealed self-regulating valve body (1) are both provided with grooves (11). Among them, the outer wall of the pipeline body (2) near the large-diameter nitrogen-sealed self-regulating valve body (1) is fixedly connected to two limiting blocks (12), and the outer wall of the upper clamp (5) and the lower clamp (6) are fixedly connected to protrusions (9). The protrusions (9) on the upper clamp (5) are bolted to two second fixing bolts (8). The same clamp assembly as the inlet is set at the outlet of the large-diameter nitrogen-sealed self-regulating valve body (1).

2. The quick-release pressure self-adjusting large-bore valve package apparatus according to claim 1, wherein: The groove at one end of the upper clamp (5) is rotatably connected to the outer wall of the fixing block (7); Among them, the outer wall of one end of the pipe body (2) is slidably connected to the inside of the pipe body groove (10).

3. The quick-release pressure self-regulating large-diameter valve group device according to claim 1, characterized in that: The two grooves (11) cooperate to form a clamp placement groove, and the outer wall sealing ring of the pipe body (2) near the large-diameter nitrogen-sealed self-regulating valve body (1) contacts the inner wall of the pipe body slide groove (10); The upper clamp (5) and the lower clamp (6) fit together to fit two grooves (11) to form the clamp placement groove inside.

4. The quick-release pressure self-regulating large-diameter valve assembly device according to claim 1, characterized in that: The outer walls of the two limiting blocks (12) are respectively slidably connected to the interior of the corresponding L-shaped limiting groove (13); Among them, the upper clamp (5) and the lower clamp (6) are connected to each other by two protrusions (9) and two second fixing bolts (8), and the interior of the pipe body (2) is connected to the interior of the inlet of the large-diameter nitrogen-sealed self-regulating valve body (1).

5. The quick-release pressure self-regulating large-diameter valve assembly device according to claim 1, characterized in that: The lower outer wall of the valve cover (3) is threaded with multiple first fixing bolts (4).

6. The quick-release pressure self-regulating large-diameter valve assembly device according to claim 1, characterized in that: The valve cover (3) is connected to the upper end of the body (1) of the large-diameter nitrogen-sealed self-regulating valve by multiple first fixing bolts (4).

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