High-safety pressure compensation valve

Abstract

The utility model provides a pressure compensation valve with high safety, which relates to the technical field of fluid control and comprises a first pipeline, a communicating pipe fixedly communicated with the first pipeline, a second pipeline fixedly communicated with one side, close to the communicating pipe, of the first pipeline, liquid or gas flows into the first pipeline through an inlet of the first pipeline, and a rotating handle. Due to the fact that the handle rotates to drive the valve plate to rotate, liquid or gas flows out through the second pipeline, when the pressure in the first pipeline is larger than a preset threshold value, the liquid or gas can push the hollow pipe to move in the direction of the bolt, the second through hole is communicated with the pressure relief pipe, and the liquid or gas flows into the collecting box through the pressure relief pipe. When the pressure in the first pipeline is lower than a threshold value, through cooperation of the damping rod and the telescopic spring, due to damping of the damping rod and elastic force of the telescopic spring, the damping rod and the telescopic spring push the hollow pipe back to the original position, the pressure relief effect is achieved, and the safety of the valve is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to a pressure compensation valve with high safety. Background Art

[0002] A high-safety pressure compensating valve refers to a valve device that can work reliably in various industrial and application environments and can effectively prevent pressure overload or other potential dangers. The working principle of the pressure compensating valve is usually based on certain physical principles, such as spring pressure, hydraulic balance, etc., and the pressure is controlled and compensated by adjusting the opening and closing of the valve.

[0003] The existing patent (publication number: CN218493922U) proposes a pressure compensation valve, in which the valve core can be axially moved in the aforementioned through cavity, the front end of which has a radially protruding plug that can block the flow of oil from the oil inlet to the oil outlet, and the rear end has an axial oil chamber, and the front end of the oil chamber has a radial oil port, which can be connected to the aforementioned oil outlet and oil inlet. The overall structure is compact, the operation is reliable and stable, and automatic flow distribution is realized.

[0004] However, the existing pressure compensating valve cannot guarantee the safety of the valve. The main function of the pressure compensating valve is to maintain the pressure stability in the system. In the hydraulic system, excessive pressure may cause damage to the pipeline, pump or other components. If the pressure compensating valve cannot prevent such overpressure, the risk of damage to the equipment will increase. In some critical applications, such as boilers or pressure vessels, the function of the safety valve is to automatically discharge the pressure when the pressure exceeds the safety limit to prevent serious accidents such as explosions. Therefore, the utility model proposes a high-safety pressure compensating valve to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to provide a pressure compensating valve with high safety.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-safety pressure compensation valve, comprising a first pipeline, a connecting pipe is fixedly connected to the first pipeline, a second pipeline is fixedly connected to a side of the first pipeline close to the connecting pipe, a pressure relief pipe is fixedly connected to the first pipeline, a pressure compensation assembly is arranged on the first pipeline, and a valve assembly is arranged on the second pipeline;

[0007] The pressure compensation assembly includes a fixed block, a hollow tube is slidably connected in the fixed block, a first through hole is provided on the hollow tube, a second through hole is provided on the hollow tube, a support plate is slidably connected in the fixed block, a damping rod is fixed on the support plate, the other end of the damping rod is fixed on the hollow tube, a telescopic spring is sleeved on the damping rod, and a bolt is threadedly connected on the fixed block;

[0008] The valve assembly comprises a handle, on which a valve plate is arranged.

[0009] As a preferred embodiment of a pressure compensation valve with high safety, the first through hole is communicated with the second pipeline, the fixing block is fixed on the first pipeline, and the hollow tube is slidably connected in the first pipeline.

[0010] The beneficial effect of adopting the above further scheme is: since the first through hole is connected with the second pipeline, when the pressure in the first pipeline is normal, the valve is opened so that liquid or gas can flow out of the second pipeline normally; since the fixed block is fixed on the first pipeline, the first pipeline plays a role of fixed support for the fixed block; since the hollow tube is slidably connected in the first pipeline, the hollow tube can adjust the outflow channel of the liquid or gas in the first pipeline.

[0011] As a preferred implementation of a pressure compensation valve with high safety, one end of the telescopic spring is fixedly connected to the hollow tube, and the other end of the telescopic spring is fixedly connected to the support plate.

[0012] The beneficial effect of adopting the above further solution is: because one end of the telescopic spring is fixedly connected to the hollow tube, and the other end of the telescopic spring is fixedly connected to the support plate, the hollow tube will be subjected to the elastic force of the telescopic spring, thereby achieving a pressure compensation effect.

[0013] As a preferred implementation of a pressure compensating valve with high safety, one end of the bolt is rotatably connected to the support plate.

[0014] The beneficial effect of adopting the above further solution is that since one end of the bolt is rotatably connected to the support plate, when the bolt rotates, the bolt can push the support plate to move into the fixed block.

[0015] As a preferred implementation of a pressure compensation valve with high safety, the other end of the connecting pipe is fixedly connected to the second pipeline.

[0016] The beneficial effect of adopting the above further solution is that the other end of the connecting pipe is fixedly connected to the second pipe, so that when the liquid or gas is flowing, it can be diverted to the second pipe through the provided connecting pipe.

[0017] As a preferred implementation of a pressure compensating valve with high safety, flanges are fixed to the first pipeline, the second pipeline and the pressure relief pipe.

[0018] The beneficial effect of adopting the above further solution is that the flanges are fixed on the first pipeline, the second pipeline and the pressure relief pipe, so that the pipelines can be connected to each other.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] 1. Liquid or gas flows into the first pipeline through the inlet of the first pipeline, and the handle is turned. Due to the rotation of the handle, the valve plate is driven to rotate, and the liquid or gas flows out through the second pipeline. When the pressure in the first pipeline is greater than a predetermined threshold, the liquid or gas will push the hollow tube to move in the direction of the bolt, so that the second through hole is connected to the pressure relief pipe, and the liquid or gas flows into the collection box through the pressure relief pipe. When the pressure in the first pipeline is lower than the threshold, through the cooperation of the damping rod and the telescopic spring, due to the damping of the damping rod and the elastic force of the telescopic spring, the damping rod and the telescopic spring push the hollow tube back to its original position, thereby achieving the effect of pressure relief and enhancing the safety of the valve.

[0021] 2. The operator turns the bolt. Due to the rotation of the bolt, the bolt pushes the support plate inward, thereby pushing the hollow tube, damping rod and telescopic spring inward, which can ensure that the flow and pressure in the hydraulic system are distributed as needed, reduce unnecessary energy loss, adjust the threshold, and improve the synchronization, stability and safety of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a pressure compensation valve with high safety provided by the utility model;

[0023] Figure 2 A structural cross-sectional view of a pressure compensating valve with high safety provided by the utility model;

[0024] Figure 3 A schematic diagram of the valve assembly structure of a pressure compensating valve with high safety provided by the utility model;

[0025] Figure 4 The utility model provides a schematic structural diagram of a pressure compensating component of a pressure compensating valve with high safety.

[0026] Reference numerals

[0027] 1. First pipeline; 2. Connecting pipe; 3. Second pipeline; 4. Pressure relief pipe; 5. Flange; 6. Pressure compensation assembly; 61. Fixed block; 62. Hollow pipe; 63. First through hole; 64. Second through hole; 65. Damping rod; 66. Support plate; 67. Telescopic spring; 68. Bolt; 7. Valve assembly; 71. Handle; 72. Valve plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1-4 As shown, this embodiment provides a technical solution: a pressure compensation valve with high safety, comprising a first pipeline 1, a connecting pipe 2 is fixedly connected to the first pipeline 1, a second pipeline 3 is fixedly connected to the side of the first pipeline 1 close to the connecting pipe 2, a pressure relief pipe 4 is fixedly connected to the first pipeline 1, a pressure compensation component 6 is arranged on the first pipeline 1, and a valve component 7 is arranged on the second pipeline 3;

[0030] like Figure 1-2 as well as Figure 4 As shown, the pressure compensation assembly 6 includes a fixed block 61, a hollow tube 62 is slidably connected in the fixed block 61, a first through hole 63 is formed on the hollow tube 62, a second through hole 64 is formed on the hollow tube 62, a support plate 66 is slidably connected in the fixed block 61, a damping rod 65 is fixed on the support plate 66, the other end of the damping rod 65 is fixed on the hollow tube 62, a telescopic spring 67 is sleeved on the damping rod 65, and a bolt 68 is threadedly connected to the fixed block 61;

[0031] like Figure 1-3As shown, the valve assembly 7 includes a handle 71, and a valve plate 72 is arranged on the handle 71. In this process, the pressure compensation assembly 6 and the valve assembly 7 work together to achieve precise control of the flow of fluid or gas. When the pressure in the first pipeline 1 exceeds a predetermined threshold, the pressure compensation assembly 6 will automatically open to allow excess fluid or gas to flow to the collection box through the pressure relief pipe 4, thereby avoiding safety hazards caused by excessive pressure. When the pressure drops below the threshold, the pressure compensation assembly 6 will close and stop releasing pressure. At the same time, the valve assembly 7 can achieve the control of the fluid or gas in the second pipeline 3 through the operation of the handle 71. For flow control, when the flow path needs to be cut off, the handle 71 only needs to be turned to close the valve plate 72; when the flow needs to be restored, the handle 71 is turned in the opposite direction to open the valve plate 72. This design not only improves the safety of the system, but also can adjust the flow and pressure of the fluid or gas according to actual needs, meeting the needs of different working conditions. In addition, due to the dual control mechanism of the pressure compensation component 6 and the valve component 7, the entire system is more stable and reliable when dealing with pressure fluctuations, thereby solving the technical problem of the inability to accurately control and adjust the flow of fluid or gas and improving the safety and reliability of the system.

[0032] The above solution also has the problem that the pressure compensation component 6 cannot adjust the pressure threshold and cannot meet the pressure compensation effect of different hydraulic or gas pressures. Figure 1-2 as well as Figure 4 As shown: the first through hole 63 is connected to the second pipeline 3, the fixed block 61 is fixed on the first pipeline 1, and the hollow tube 62 is slidably connected in the first pipeline 1. Since the first through hole 63 is connected to the second pipeline 3, when the pressure in the first pipeline 1 is normal, the valve is opened so that the liquid or gas can flow out of the second pipeline 3 normally. Since the fixed block 61 is fixed on the first pipeline 1, the first pipeline 1 plays a role of fixed support for the fixed block 61. Since the hollow tube 62 is slidably connected in the first pipeline 1, the hollow tube 62 can adjust the outflow channel of the liquid or gas in the first pipeline 1. One end of the telescopic spring 67 is fixedly connected to the hollow tube 62. The telescopic spring 67 The other end of the bolt 68 is fixedly connected to the support plate 66. The support plate 66, as a fixing point of the telescopic spring 67, also plays an important supporting role. It is connected to the hollow tube 62 through the damping rod 65, ensuring the stability and centering of the hollow tube 62 during movement. This design allows the hollow tube 62 to slide smoothly when the pressure changes, rather than producing violent jumps or deviations, thereby improving the reliability and efficiency of the entire pressure compensation system. One end of the bolt 68 is rotatably connected to the support plate 66. Since one end of the bolt 68 is rotatably connected to the support plate 66, when the bolt 68 rotates, the bolt 68 can push the support plate 66 to move into the fixed block 61;

[0033] like Figure 1-2As shown, the other end of the connecting pipe 2 is fixedly connected to the second pipe 3, and the other end of the connecting pipe 2 is fixedly connected to the second pipe 3, so that when the liquid or gas is flowing, it can be diverted to the second pipe 3 through the connecting pipe 2;

[0034] like Figure 1-3 As shown, flanges 5 are fixed to the first pipeline 1, the second pipeline 3 and the pressure relief pipe 4. The flange 5 is a mechanical device for connecting pipelines, usually made of metal, and has a screw hole so that the two flanges 5 can be fastened together by a screw and a nut to achieve a sealed connection of the pipelines. This design allows the pipeline system to be easily disassembled and reassembled as needed, and is also convenient for maintenance and inspection.

[0035] Working principle:

[0036] like Figure 1-4 As shown, in this process, the pressure compensation component 6 and the valve component 7 work together to achieve precise control of the flow of fluid or gas. When the pressure in the first pipeline 1 exceeds the predetermined threshold, the pressure compensation component 6 will automatically open to allow excess fluid or gas to flow to the collection box through the pressure relief pipe 4, thereby avoiding safety hazards caused by excessive pressure. When the pressure drops below the threshold, the pressure compensation component 6 will close and stop releasing pressure. At the same time, the valve component 7 can control the flow of fluid or gas in the second pipeline 3 through the operation of the handle 71. When the flow path needs to be cut off, just turn the handle 71 to close the valve plate 72. When the flow needs to be restored, turn the handle 71 in the opposite direction to open the valve plate 72. This design not only improves the safety of the system, but also can adjust the flow and pressure of the fluid or gas according to actual needs, meeting the needs of different working conditions. In addition, due to the dual control mechanism of the pressure compensation component 6 and the valve component 7, the entire system is more stable and reliable when dealing with pressure fluctuations, achieving precise control and regulation of the flow of fluid or gas, and improving the technical problems of the safety and reliability of the system.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pressure compensating valve with high safety, characterized in that: The invention comprises a first pipeline (1), a connecting pipe (2) is fixedly connected to the first pipeline (1), a second pipeline (3) is fixedly connected to the side of the first pipeline (1) close to the connecting pipe (2), a pressure relief pipe (4) is fixedly connected to the first pipeline (1), a pressure compensation component (6) is arranged on the first pipeline (1), and a valve component (7) is arranged on the second pipeline (3); The pressure compensation assembly (6) comprises a fixed block (61), a hollow tube (62) is slidably connected inside the fixed block (61), a first through hole (63) is provided on the hollow tube (62), a second through hole (64) is provided on the hollow tube (62), a support plate (66) is slidably connected inside the fixed block (61), a damping rod (65) is fixed on the support plate (66), the other end of the damping rod (65) is fixed on the hollow tube (62), a telescopic spring (67) is sleeved on the damping rod (65), and a bolt (68) is threadedly connected to the fixed block (61); The valve assembly (7) comprises a handle (71), and a valve plate (72) is arranged on the handle (71).

2. A pressure compensating valve with high safety according to claim 1, characterized in that: The first through hole (63) is in communication with the second pipe (3), the fixing block (61) is fixed on the first pipe (1), and the hollow pipe (62) is slidably connected inside the first pipe (1).

3. A pressure compensating valve with high safety according to claim 1, characterized in that: One end of the telescopic spring (67) is fixedly connected to the hollow tube (62), and the other end of the telescopic spring (67) is fixedly connected to the support plate (66).

4. A pressure compensating valve with high safety according to claim 1, characterized in that: One end of the bolt (68) is rotatably connected to the support plate (66).

5. A pressure compensating valve with high safety according to claim 1, characterized in that: The other end of the connecting pipe (2) is fixedly connected to the second pipe (3).

6. A pressure compensating valve with high safety according to claim 1, characterized in that: Flange plates (5) are fixed on the first pipeline (1), the second pipeline (3) and the pressure relief pipe (4).

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