An automatic flow balancing valve based on hydraulic force transmission

Abstract

The present invention discloses an automatic flow balancing valve based on hydraulic force transmission, comprising a valve body, a valve cavity is arranged inside the valve body, the valve cavity comprises a fluid inlet cavity and a fluid outlet cavity interconnected through a valve hole, and a balancing liquid regulating mechanism is arranged at the valve hole; the balancing liquid regulating mechanism comprises a balancing liquid cavity, a hydraulic self-driving part arranged in the balancing liquid cavity, and a valve hole regulating assembly connected to the hydraulic self-driving part. The hydraulic self-driving part moves through the pressure difference between the balancing liquid cavity and the fluid outlet cavity, thereby driving the valve hole regulating assembly to achieve balanced regulation of the valve hole flow. The automatic flow balancing valve based on hydraulic force transmission realizes that no matter what water supply mode is used, the outlet pressure is automatically equalized by mutual sensing of the outlet cavity pressure between valves, thereby achieving automatic balance of water flow. There is no need to frequently adjust the valve opening manually, which reduces the labor intensity of personnel.

Description

Technical Field

[0001] The invention relates to the technical field of valves, and in particular to an automatic flow balancing valve based on hydraulic force transmission. Background Art

[0002] The cooling water system in the water-cooled chilled water air conditioning system mostly adopts a ring network cooling water system, and the inlet and outlet pipes of each tower are connected into a cooling system through a ring-shaped header. Ideally, the water volume is evenly distributed to the water inlet of each cooling tower, and then evenly distributed to the packing of each tower to form a uniform water film, which fully exchanges heat with the air. After the water temperature is reduced, it is transported to the condensation side of the refrigeration host to complete a heat dissipation cycle. Only the hydraulic balance between the cooling towers in the cooling water system can make the water film in each tower evenly distributed and the heat dissipation effect good. If the flow distribution is uneven, the water film on the packing will be uneven, the heat dissipation effect of the cooling tower will deteriorate, and the outlet water temperature after cooling by the cooling tower will be higher than the normal value. The increase in the outlet water temperature of the cooling tower will cause the efficiency of the refrigeration host to decrease. Every increase of 1°C will reduce the efficiency of the refrigeration host by about 4%, which will increase the energy consumption of the air conditioning system. Therefore, the hydraulic balance between the towers and the water inlets of each tower in the cooling water system is a key factor affecting the efficiency of the air conditioning system.

[0003] For the cooling water system of the ring network, water can be supplied from one end of the main ring network, from the other end of the main ring network, or from both ends at the same time. Due to the diversity and uncertainty of the water supply methods, it is difficult to balance the hydraulics of the ring network, which affects the heat dissipation effect of the cooling tower and increases the energy consumption of the cooling system.

[0004] At the same time, in order to achieve flow balance, it is necessary to manually adjust the valve opening frequently, which greatly increases the labor intensity of personnel.

[0005] In the prior art, in order to reduce labor intensity, various control systems are also provided to adjust the valve opening, but there are problems such as the control system being too complicated and the cost being high. Summary of the invention

[0006] The purpose of the present invention is to solve the problems that the water flow distribution of the existing cooling water system is uneven, resulting in uneven water film on the filler, poor heat dissipation effect of the cooling tower, the outlet water temperature after cooling by the cooling tower is higher than the normal value, and the increase in the outlet water temperature of the cooling tower will cause the efficiency of the refrigeration host to decrease, and the energy consumption of the air-conditioning system to increase. An automatic flow balancing valve based on hydraulic force transmission is provided. No matter what water supply mode the valve is in, it can sense the outlet water pressure between the valves, and make the outlet water pressure of each valve equal through hydraulic force transmission, automatically adjust the resistance of the valve, so that the flow of the inlet and outlet water pipes of the cooling tower is automatically balanced, so that the water film in each tower is evenly distributed, which can effectively improve the heat dissipation effect of the cooling system and reduce the energy consumption of the cooling system. In addition, there is no need for a complex control system. By mutually sensing the outlet water cavity pressure between the valves, the outlet water pressure is automatically equalized, thereby achieving automatic balance of the water flow. There is no need to manually adjust the valve opening frequently, which reduces the labor intensity of the personnel.

[0007] The technical scheme adopted by the present invention to achieve its invention purpose is: an automatic flow balancing valve based on hydraulic force transmission, comprising a valve body, a valve cavity is arranged inside the valve body, the valve cavity comprises a fluid inlet cavity and a fluid outlet cavity interconnected through a valve hole, and a balancing liquid regulating mechanism is arranged at the valve hole; the balancing liquid regulating mechanism comprises a balancing liquid cavity, a hydraulic self-driving member arranged in the balancing liquid cavity, and a valve hole regulating assembly connected to the hydraulic self-driving member, the hydraulic self-driving member moves under the action of the pressure difference between the balancing liquid cavity and the fluid outlet cavity, thereby driving the valve hole regulating assembly to realize the balanced regulation of the flow size of the valve hole. The automatic flow balancing valve based on hydraulic force transmission is divided into a fluid inlet cavity and a fluid outlet cavity by dividing the valve cavity into a fluid inlet cavity and a fluid outlet cavity, and the fluid inlet cavity and the fluid outlet cavity are connected through the valve hole. When in use, the fluid flows from the fluid inlet cavity through the valve hole into the fluid outlet cavity, and at the same time, a balancing liquid regulating mechanism is arranged at the valve hole, a balancing liquid cavity is arranged in the balancing liquid regulating mechanism, a hydraulic self-driving member through hydraulic force transmission is arranged inside the balancing liquid cavity, and a valve hole regulating assembly is connected to the hydraulic self-driving member. When the fluid enters the fluid outlet cavity from the fluid inlet cavity, and the fluid pressure is greater than the hydraulic force of the liquid inside the balancing liquid cavity, the hydraulic self-driving component moves to one side of the balancing liquid cavity under the action of the fluid pressure, and transmits the fluid pressure outward through the liquid inside the balancing liquid cavity, so that the valve hole adjustment component moves toward the valve hole to close the valve hole and reduce the flow area of ​​the valve hole. When the force transmitted by the liquid inside the balancing liquid cavity is greater than the fluid pressure inside the fluid outlet cavity, the liquid force inside the balancing liquid cavity pushes the hydraulic self-driving component to move toward the side of the fluid inlet cavity, thereby driving the valve hole adjustment component away from the valve hole to expand the valve hole and increase the flow area of ​​the valve hole. The automatic flow balancing valve based on hydraulic force transmission can realize the automatic and uniform distribution of the water supply flow of the cooling water system without a complex control system, and realizes that no matter what water supply mode is used, the outlet pressure between each valve can be sensed, and the outlet pressure of each valve is equalized through hydraulic force transmission, and the resistance of the valve is automatically adjusted, so that the flow of the inlet and outlet pipes of the cooling tower is automatically balanced, and the water film in each tower is evenly distributed, which can effectively improve the heat dissipation effect of the cooling system and reduce the energy consumption of the cooling system. In addition, there is no need for a complex control system. By sensing the pressure of the water outlet chamber between valves, the water outlet pressure is automatically equalized, thereby achieving automatic balance of water flow. There is no need for manual frequent adjustment of the valve opening, which reduces the labor intensity of personnel.

[0008] Preferably, the balancing liquid chamber is divided into a liquid chamber and a fluid chamber by a hydraulic self-driving member, and the fluid chamber is connected to the fluid outlet chamber; one side of the hydraulic self-driving member is acted upon by the balancing liquid force inside the liquid chamber, and the other side of the hydraulic self-driving member is acted upon by the fluid pressure inside the fluid outlet chamber. The balancing liquid chamber is divided into a liquid chamber and a fluid chamber by a hydraulic self-driving member, an incompressible fluid is injected into the liquid chamber, and the fluid chamber is connected to the fluid outlet chamber, so that the pressure of the fluid inside the fluid outlet chamber is constantly sensed, and the automatic balance between the fluid pressure and the hydraulic force transmission is achieved by the arrangement of the liquid chamber and the fluid chamber, thereby controlling the flow area of ​​the valve hole.

[0009] Preferably, the hydraulic self-actuated component is a piston; or the hydraulic self-actuated component is an elastic valve plate. The hydraulic self-actuated component can be a piston, which drives the movement of the piston through the pressure difference on both sides of the piston, thereby driving the valve hole adjustment component to balance the flow rate of the valve hole; the hydraulic self-actuated component can also be an elastic valve plate, which drives the valve hole adjustment component to balance the flow rate of the valve hole through the deformation of the elastic valve plate caused by the pressure difference on both sides of the elastic valve plate. Of course, the hydraulic self-actuated component can also use other components that can be driven to move by the pressure difference on both sides, and can be specifically set according to actual needs.

[0010] Preferably, the valve hole adjustment component includes a guide member and a valve hole adjustment member connected to the guide member, one end of the guide member is connected to the hydraulic self-driving member and moves with the hydraulic self-driving member, and the other end of the guide member is telescopically connected to the inner wall of the valve cavity. The valve hole adjustment component mainly includes a guide member for realizing motion guidance and a valve hole adjustment member arranged on the guide member and moving with the guide member, the guide member is connected to the hydraulic self-driving member and is driven to move together by the movement of the hydraulic self-driving member, thereby realizing the balanced adjustment of the valve hole flow rate by the valve hole adjustment member. In order to facilitate the movement of the guide member, a telescopic connection is adopted between the guide member and the inner wall of the valve cavity.

[0011] Preferably, the guide member is connected to the inner wall of the valve cavity via a guide member sealing retractor; an adjusting cavity is arranged inside the guide member. As a preferred solution, the guide member is connected to the inner wall of the valve cavity via a guide member sealing retractor, which can ensure the movement stroke of the guide member and realize the sealing connection between the inner cavity of the guide member and the front valve cavity.

[0012] Preferably, the valve hole adjusting member is provided with a progressive regulating valve face, and the large end of the progressive regulating valve face is arranged in the fluid inlet chamber; the valve hole adjusting member is also provided with a force elimination structure. In order to achieve smooth and progressive adjustment of the valve hole flow rate, a progressive regulating valve face is provided on the valve hole adjusting member, and the large end of the progressive regulating valve face is arranged in the fluid inlet chamber. When the valve hole adjusting member adjusts the valve hole flow rate to be reduced, the valve hole adjusting member moves toward the valve hole, thereby gradually reducing the valve hole through the progressive regulating valve face. When the valve hole adjusting member moves away from the valve hole, the valve hole is gradually enlarged through the progressive regulating valve face, thereby achieving smooth adjustment of the flow rate. In order to further improve the smoothness of the adjustment, a force elimination structure is also provided on the valve hole adjusting member, and the force elimination structure is used to eliminate the inertial force generated by the progressive regulating valve face causing the fluid to change direction when the fluid passes through the valve hole.

[0013] Preferably, the valve hole adjustment member is a conical plug body structure, or the valve hole adjustment member is a hammer body structure, or the valve hole adjustment member is a hyperbolic body structure; the progressive adjustment valve surface is a conical surface of the conical plug body, or a hammer surface of a hammer body, or a hyperbolic surface. In order to achieve progressive and stable adjustment, the valve hole adjustment member can be set to a conical plug body structure, a hammer body structure, a hyperbolic body structure, and other different structures, which are specifically set according to actual needs. The corresponding progressive adjustment valve surface can be a conical surface, a hammer surface, a hyperbolic surface, and other structures.

[0014] Preferably, the balancing liquid regulating mechanism further comprises a hydraulic self-driving part position limiting regulating assembly. In order to facilitate the limitation of the movement range of the hydraulic self-driving part, thereby limiting the flow area between the valve hole regulating part and the valve hole, a hydraulic self-driving part position limiting regulating assembly is also provided in the balancing liquid regulating mechanism.

[0015] Preferably, the hydraulic self-driving part limit adjustment assembly includes a rolling bearing arranged outside the valve body and an adjustment rod adjustably connected to the rolling bearing, one end of the adjustment rod is arranged outside the rolling bearing and is provided with a handle, the other end of the adjustment rod is passed through the valve hole adjustment assembly, and its end is used to limit the movement range of the hydraulic self-driving part. The hydraulic self-driving part limit adjustment assembly mainly includes a rolling bearing and an adjustment rod, and the movement stroke of the hydraulic self-driving part is adjusted by rotating the adjustment rod. In order to facilitate adjustment, a dial can also be provided on the rolling bearing.

[0016] Preferably, the fluid inlet cavity and the fluid outlet cavity are formed by dividing the valve cavity through a valve cavity dividing plate, and the valve hole is formed by the valve cavity dividing plate. The fluid inlet cavity and the fluid outlet cavity are preferably divided and formed by a valve cavity dividing plate arranged inside the valve cavity, and the valve cavity dividing plate can be a plate such as a dividing plate, which can more conveniently divide the valve cavity and set the valve hole as needed.

[0017] The beneficial effects of the present invention are as follows: the automatic flow balancing valve based on hydraulic force transmission does not require a complex control system. Through the hydraulic transmission of the balancing liquid, the outlet water pressure of each valve is balanced, thereby achieving flow balance. It is possible to achieve automatic and uniform distribution of the water supply flow of the cooling water system, and realize that no matter what water supply mode is used, the outlet water pressure between each valve can be sensed, and the outlet water pressure of each valve is equalized through hydraulic force transmission. The resistance of the automatic regulating valve is automatically adjusted to achieve automatic balance of the flow of the inlet and outlet water pipes of the cooling tower, so that the water film in each tower is evenly distributed, which can effectively improve the heat dissipation effect of the cooling system and reduce the energy consumption of the cooling system. By mutually sensing the outlet water cavity pressure between the valves, the outlet water pressure is automatically equalized, thereby achieving automatic balance of the water flow. There is no need to manually adjust the valve opening frequently, which reduces the labor intensity of the personnel. It can be widely used in various flow control systems such as the cooling tower water supply system of the air-conditioning system and the open flow distribution system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the automatic flow balancing valve based on hydraulic force transmission of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the valve hole adjustment component in the present invention.

[0020] Figure 3 It is a schematic diagram of a connection structure between the hydraulic self-driving component and the balancing liquid chamber in Example 1 of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the guide rod adjustment disk in the present invention.

[0022] Figure 5 The present invention is a schematic diagram of an application structure of an automatic flow balancing valve based on hydraulic force transmission.

[0023] Figure 6 yes Figure 5 Medium pressure diagram.

[0024] Figure 7 It is a structural schematic diagram of an automatic flow balancing valve based on hydraulic force transmission in Example 3 of the present invention.

[0025] Figure 8 This is a second structural schematic diagram of the automatic flow balancing valve based on hydraulic force transmission in Example 3 of the present invention.

[0026] Fig. 9 This is a third structural schematic diagram of the automatic flow balancing valve based on hydraulic force transmission in Example 3 of the present invention.

[0027] Fig.10This is a schematic diagram of the fourth structure of the automatic flow balancing valve based on hydraulic force transmission in Example 3 of the present invention.

[0028] In the figure: 100, automatic flow balancing valve, 300, balancing liquid interface, 400, hydraulic self-driving part limit adjustment assembly, 401, rolling support, 402, adjustment rod, 403, handle, 404, guide rod adjustment disk;

[0029] 1. valve body, 11. fluid inlet, 12. fluid outlet;

[0030] 2. valve chamber, 21. fluid inlet chamber, 22. fluid outlet chamber;

[0031] 3. Valve cavity partition plate, 31. Inlet side partition plate, 32. Outlet side partition plate, 33. Inlet side valve hole section, 34. Outlet side valve port section;

[0032] 4. Valve hole, 5. Balancing fluid regulating mechanism;

[0033] 6. Balance liquid chamber, 61. Liquid chamber, 62. Fluid chamber, 63. Piston seal retractor, 64. Balance liquid flow hole, 65. Rigid baffle, 66. Hole;

[0034] 7. Hydraulic self-driving parts, 8. Valve hole adjustment components;

[0035] 9. Flow regulator, 91. Progressive regulating valve face, 92. Force elimination structure, 93. Regulating plug, 94. Force elimination plug, 95. Guide seal expansion joint;

[0036] 10. guide member, 101. adjustment chamber;

[0037] 30. Balancing liquid connecting pipe;

[0038] 40, first branch outlet, 41, second branch outlet;

[0039] 50. Water supply manifold, 51. First branch pipe, 52. Second branch pipe. DETAILED DESCRIPTION

[0040] The various aspects of the present invention are described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] exist Figure 1 , Figure 2In the embodiment shown, an automatic flow balancing valve based on hydraulic force transmission is provided. The automatic flow balancing valve 100 includes a valve body 1, a valve cavity 2 is arranged inside the valve body 1, a valve cavity partition plate 3 is arranged inside the valve cavity 2, the valve cavity partition plate 3 divides the valve cavity 2 into a fluid inlet cavity 21 and a fluid outlet cavity 22, a valve hole 4 connecting the fluid inlet cavity and the fluid outlet cavity is arranged on the valve cavity partition plate 3, a fluid inlet 11 connecting the fluid inlet cavity 21 and a fluid outlet 12 connecting the fluid outlet cavity 22 are arranged on the valve body 1, and the fluid inlet 11 and the fluid outlet 12 are arranged coaxially.

[0043] A balancing liquid regulating mechanism 5 is provided at the valve hole 4; the balancing liquid regulating mechanism 5 includes a balancing liquid chamber 6, a hydraulic self-driving component 7 provided in the balancing liquid chamber 6, and a valve hole regulating assembly 8 connected to the hydraulic self-driving component 7; the hydraulic self-driving component 7 moves due to the pressure difference between the balancing liquid chamber 6 and the fluid outlet chamber 22, thereby driving the valve hole regulating assembly 8 to achieve balanced regulation of the flow rate of the valve hole 4.

[0044] The balancing liquid chamber 6 is divided into a liquid chamber 61 and a fluid chamber 62 by a hydraulic self-driving member 7, and the fluid chamber 62 is connected to the fluid outlet chamber 22; one side of the hydraulic self-driving member 7 is acted upon by the balancing liquid force inside the liquid chamber 61, and the other side of the hydraulic self-driving member 7 is acted upon by the fluid pressure inside the fluid outlet chamber 22.

[0045] The valve hole adjustment assembly 8 includes a guide member 10 and a flow regulator 9 connected to the guide member. One end of the guide member 10 is connected to the hydraulic self-driving member 7 and moves with the hydraulic self-driving member 7. The other end of the guide member 10 is telescopically connected to the inner wall of the valve cavity 2. The guide member 10 is connected to the inner wall of the valve cavity through a guide member sealing retractor 95; an adjustment cavity 101 is provided inside the guide member 10.

[0046] The flow regulator 9 is provided with a progressive regulating valve face 91 , and the large end of the progressive regulating valve face 91 is arranged in the fluid inlet cavity 21 ; the flow regulator 9 is also provided with a force dissipation structure 92 .

[0047] The flow regulator 9 is a conical plug structure, or a hammer-like structure, or a hyperbolic structure; the progressive regulating valve face 91 is a conical surface of a conical plug, or a hammer-like hammer surface, or a hyperbolic surface. The corresponding force-dissipating structure 92 can be an independent conical plug structure, or the force-dissipating structure 92 and the progressive regulating valve face 91 can be integrated into a hammer-like structure, or the force-dissipating structure and the progressive regulating valve face 91 can be integrated into a hyperbolic structure;

[0048] The valve cavity partition plate 3 includes an inlet side partition plate 31 and an outlet side partition plate 32 which are arranged in one piece or in separate pieces. In this embodiment, the valve cavity partition plate 3 is arranged in a separate piece. In other embodiments, the valve cavity partition plate 3 may also adopt other structures, but is not limited to the plate structure.

[0049] The inlet-side partition plate 31 is arranged on one side of the fluid inlet 11 and is inclined in the direction of the inlet axis, and is vertically bent in the direction of the fluid inlet axis to form an inlet-side valve hole section 33; the outlet-side partition plate 32 is arranged on one side of the fluid outlet 12 (and on the side opposite to the inlet-side partition plate) and is inclined in the direction of the fluid outlet axis, and is vertically bent along the axis to form an outlet-side valve port section 34, and the inlet-side valve hole section 33 and the outlet-side valve hole section 34 are relatively arranged on the same straight line and are spaced at a certain distance to form the valve hole 4. The straight line where the inlet-side valve hole section 33 and the outlet-side valve hole section 34 are located is parallel to or coincides with the axis of the valve cavity.

[0050] The inlet side partition plate 31 and the outlet side partition plate 32 divide the valve cavity 2 into a fluid inlet cavity 21 and a fluid outlet cavity 22 along the axial direction of the valve cavity. The cavity volumes of the fluid inlet cavity 21 and the fluid outlet cavity 22 can be equally or unevenly set, and can be divided specifically according to actual needs. In this embodiment, the cavity volume of the fluid inlet cavity is smaller than the cavity volume of the fluid outlet cavity.

[0051] A balancing liquid interface 300 communicating with the balancing liquid cavity 6 is arranged outside the valve body where the balancing liquid cavity 6 is located.

[0052] In this embodiment, the axis of the balancing liquid cavity 6 is arranged perpendicular to the axis of the valve cavity. Correspondingly, the balancing liquid interface 300 is arranged on the valve body perpendicular to the axis direction of the valve cavity, and the axis of the balancing liquid interface is arranged coaxially with the axis where the valve hole is located.

[0053] In this embodiment, the hydraulic self-driving member 7 is a piston. The balancing liquid chamber 6 is a piston chamber of a piston cylinder. Both ends of the piston cylinder are provided with openings.

[0054] The end opening of the piston cylinder facing the balance liquid interface is communicated with the balance liquid interface 300, and a balance liquid cavity 6 is formed inside the piston cylinder. The piston is arranged inside the piston cavity and can reciprocate along the piston cavity.

[0055] The piston and the piston cylinder are connected to each other through a piston seal retractor 63. When the piston reciprocates inside the piston cylinder, the piston seal retractor 63 moves with the piston and seals the liquid inside the balancing liquid chamber. Figure 3). The balancing liquid flow hole 64 allows the liquid inside the balancing liquid cavity to flow in the balancing liquid cavity on both sides of the piston.

[0056] In this embodiment, the guide member 10 is a guide cylinder, and the flow regulator 9 includes a regulating plug 93 and a force dissipating plug 94 which are separately arranged.

[0057] One end of the guide sleeve is connected to the piston, and the other end extends through the valve hole toward the inner wall of the valve body opposite to the piston cylinder, and forms a telescopic sealing connection with the inner wall of the valve cavity through a guide seal telescope 95.

[0058] The balancing liquid regulating mechanism 5 further includes a hydraulic self-driving member limit regulating assembly 400 .

[0059] The hydraulic self-driving member limit adjustment assembly 400 is coaxially arranged with the guide sleeve on the valve body outside the guide member sealing retractor.

[0060] The hydraulic self-driving member limit adjustment assembly 400 includes a rolling support 401 arranged outside the valve body 1 and an adjustment rod 402 adjustably connected to the rolling support 401. One end of the adjustment rod 402 is arranged outside the rolling support 401 and is provided with a handle 403. The other end of the adjustment rod 402 is passed through the adjustment cavity 101 on the adjustment member in the valve hole adjustment assembly 8, and its end is used to limit the movement range of the hydraulic self-driving member 7. A guide rod adjustment disk 404 (see Figure 4 ). In this embodiment, the adjusting rod 402 and the rolling support 401 are connected by threads to form an adjustable connection.

[0061] The rolling support 401 , the guide seal retractor 95 , the guide 10 , the balancing liquid chamber 6 and the balancing liquid interface 300 are arranged coaxially and horizontally.

[0062] The flow regulator 9 is arranged on the outer wall of the guide sleeve, and the fluid regulator 9 is arranged at the valve hole 4 .

[0063] The flow regulator 9 comprises a regulating plug 93 and a force-dissipating plug 94 which are arranged on the guide cylinder.

[0064] The regulating plug 93 and the energy dissipating plug 94 are conical bodies of the same shape; the cone tips of the regulating plug 93 and the energy dissipating plug 94 are arranged opposite to each other and fixed on the guide cylinder and move with the guide cylinder, thereby forming a flow regulator 9 for adjusting the opening size of the valve hole 4.

[0065] The regulating plug 93 and the energy dissipating plug 94 are installed with cone tip to cone tip, and the cone tip of the regulating plug coincides with the center point of the valve hole in the initial state. The cone bottom end of the regulating plug 93 is installed in the fluid inlet chamber 21, and the cone bottom end of the energy dissipating plug is installed in the fluid outlet chamber 22.

[0066] The distance between the cone tip of the energy dissipation plug 94 and the cone tip of the regulating plug 93 is equal to the length of the cone.

[0067] The cone bottom diameter of the regulating plug 93 and the energy dissipating plug 94 is smaller than the diameter of the valve hole 4, and is generally determined by the cone bottom area being 0.5 to 0.9 times the valve hole area. Generally, the cone surface and the cone bottom surface form an angle of 30 to 60 degrees.

[0068] The axis of the guide tube is the same as the axis of the piston, and the guide tube is fixedly connected to the piston. The flow regulator 9 as a whole can move left and right along with the adjustment rod 402 under the drive of the piston.

[0069] When in use, the left side of the piston is the fluid that needs to be adjusted, that is, the fluid inside the valve cavity, and the inside of the balancing liquid cavity on the right side of the piston is the balancing liquid fluid. Because n balancing liquid flow holes 64 are provided on the piston. When the force of the fluid on the left side of the piston is greater than the force of the balancing liquid on the right side, the piston moves to the right, driving the regulating plug 93 to move toward the valve hole. Since the regulating plug 93 is a conical structure, the closer it is to the valve hole, the smaller the flow rate of the valve hole will be. Therefore, the valve hole will be closed by moving the regulating plug 93 toward the valve hole. When the force of the fluid on the left side of the piston is less than the force of the balancing liquid on the right side, the piston moves to the left, driving the regulating plug 93 away from the valve hole, thereby opening the valve hole. When the force of the fluid on the left side of the piston is equal to the force of the balancing liquid on the right side, the piston does not move, and the valve hole maintains its original opening.

[0070] When the regulating plug 93 moves left and right, the force eliminating plug 94 is used to eliminate the inertial force generated when the regulating plug 93 changes the direction of the fluid when the fluid passes through the valve hole.

[0071] The total movable length of the piston in the piston cylinder is greater than or equal to twice the cone length of the regulating plug 93, and the length of the cone bottom of the energy dissipating plug 94 from the outer wall of the piston cylinder is greater than or equal to 1 times the cone length.

[0072] A piston sealing retractor 63 is provided between the piston and the outer wall of the piston cylinder, and a guide sealing retractor 95 is provided between the valve body 1 and the guide cylinder, the purpose of which is to prevent impurities in the fluid from entering the active parts of the piston and the guide cylinder, thereby affecting the normal use of the valve.

[0073] The valve body is provided with an adjusting rod 402, on which a handle 403 is provided. The handle 403 can be rotated to define the initial position of the piston, and the handle 403 rotates according to the scale on the guide rod adjusting disk 404. The moving range of the piston is limited by the adjusting rod 402, thereby limiting the flow area between the adjusting plug and the valve hole.

[0074] In the initial state, the piston is in the middle of the piston cylinder, and the flow area of ​​the valve hole is 100%; when the piston is at the bottom, it is the maximum adjustment amount, and the flow volume of the valve hole is the smallest; when the piston is at the top, it is the minimum adjustment amount 0%, and the flow area of ​​the valve hole is the largest.

[0075] The piston is provided with a balancing liquid flow hole 64. When the piston moves, the balancing liquid can flow freely through the balancing liquid flow hole 64, so that the balancing liquid pressure on both sides of the piston is equal.

[0076] When in use, the fluid enters the fluid inlet chamber 21 from the fluid inlet 11, flows into the fluid outlet chamber 22 through the valve hole 4, and finally flows out from the fluid outlet 12. The balancing liquid interface 300 is connected to the balancing liquid interface 300 of other valve bodies, and the balancing liquid chamber 6 is injected with incompressible fluid, such as mineral oil.

[0077] A piston sealing retractor 63 is provided between the piston and the outer wall of the piston cylinder, and a guide sealing retractor 95 is provided between the valve body 1 and the guide cylinder to prevent impurities in the fluid from entering the movable parts of the piston and the guide cylinder.

[0078] The valve body is provided with an adjusting rod 402, and a handle 403 is provided on the adjusting rod 402. The handle 403 can be rotated to limit the initial position of the piston through the end of the adjusting rod. The flow area between the adjusting plug and the valve hole is limited by limiting the movement range of the piston. In the initial state, the piston is in the middle of the piston cylinder, and the flow area of ​​the valve hole is 100%; when the piston is at the bottom, it is the maximum adjustment amount, and the flow volume of the valve hole is the smallest; when the piston is at the top, it is the minimum adjustment amount 0%, and the flow area of ​​the valve hole is the largest.

[0079] The axis of the guide sleeve is the same as the axis of the piston, and the guide sleeve is fixedly connected to the piston. The flow regulator as a whole can move left and right along the adjusting rod 402 with the piston. When the force of the fluid in the fluid outlet chamber 22 acting on the piston is greater than the force of the balancing liquid chamber 6 acting on the piston, the flow regulator as a whole moves to the right along the adjusting rod 402 with the piston, driving the adjusting plug to close the valve hole 4, and the outflow of the fluid outlet chamber 22 decreases; when the force of the fluid in the fluid outlet chamber 22 acting on the piston is less than the force of the balancing liquid chamber 6 acting on the piston, the flow regulator as a whole moves to the left along the adjusting rod 402 with the piston, driving the adjusting plug to open the valve hole 4, and the outflow of the fluid outlet chamber 22 increases; when the force of the fluid in the fluid outlet chamber 22 acting on the piston is equal to the force of the balancing liquid chamber 6 acting on the piston, the flow regulator as a whole does not move with the piston, the opening of the valve hole 4 remains unchanged, and the outflow of the fluid outlet chamber 22 remains unchanged.

[0080] By adjusting the pressure of the balancing liquid to be equal to that of the fluid outlet cavity, the purpose of controlling the fluid flowing through the fluid outlet cavity is achieved.

[0081] Embodiment 2:

[0082] exist Figure 5 , Figure 6 The illustrated embodiment is an application example of the automatic flow balancing valve 100 , in which the automatic flow balancing valve based on hydraulic force transmission is installed on two branch pipes of the water supply manifold 50 .

[0083] like Figure 5 A first branch pipe 51 and a second branch pipe 52 are provided on the water supply manifold 50, and an automatic flow balancing valve 100 is installed on the first branch pipe 51 and the second branch pipe 52 respectively. The balancing liquid interfaces 300 of the two automatic flow balancing valves 100 are connected through a balancing liquid connecting pipe 30, and an incompressible fluid such as water or mineral oil is injected into the balancing liquid connecting pipe 30, so that the pistons of the two automatic flow balancing valves 100 are respectively in the middle positions of their respective piston cylinders.

[0084] Water enters the automatic flow balancing valve 100 from the first branch pipe 51 and flows out from the first branch pipe outlet 40. Water enters the automatic flow balancing valve 100 from the second branch pipe 52 and flows out from the second branch pipe outlet 41. The automatic flow balancing valve fluid outlet cavity pressure P1' on the first branch pipe is set, and the automatic flow balancing valve balancing fluid pressure on the first branch pipe 51 is set to P1; the automatic flow balancing valve fluid outlet cavity pressure P2' on the second branch pipe, and the automatic flow balancing valve balancing fluid pressure on the second branch pipe 52 is set to P2.

[0085] The water supply manifold 50 can supply water from the C end or the B end respectively, or can supply water from both the C end and the B end simultaneously.

[0086] Now assume that the water supply manifold only supplies water from the C end, the first branch pipe 51 is close to the C end, the second branch pipe 52 is far from the C end, and the first branch pipe 51 and the second branch pipe 52 have the same diameter. According to the principle of fluid mechanics, the first branch pipe 51 has a small resistance. When water just starts to flow into the automatic flow balancing valve 100, the automatic flow balancing valve fluid outlet cavity pressure P1' on the first branch pipe 51 is greater than the automatic flow balancing valve fluid outlet cavity pressure P2' on the second branch pipe 52. The automatic flow balancing valve piston on the first branch pipe 51 pushes the balancing fluid to move toward the second branch pipe 52, and at the same time drives the regulating plug to move toward the second branch pipe 52. The valve hole 4 is closed and the flow rate is reduced. Due to the force transmission effect of the balancing liquid, the force P1' acts on the piston of the automatic flow balancing valve on the second branch pipe 52 through the balancing liquid pressures P1 and P2. The automatic flow balancing valve piston on the second branch pipe 52 pushes the balancing liquid to move to the right, and at the same time drives the regulating plug to move to the right. The valve hole 4 of the automatic flow balancing valve opens wider, the flow increases, and the fluid outlet pressure increases. Finally, the outlet pressures of the two automatic flow balancing valves are equal.

[0087] According to the principle of fluid mechanics, the free opening flow rate at the first branch outlet 40 or the second branch outlet 41 is:

[0088]

[0089] In the formula, A is the cross-sectional area of ​​each inlet pipe, μ is the flow system number, P is the pressure of the fluid outlet cavity, and h is the height between the automatic flow balancing valve and the outlet. Since h between each valve and the outlet is equal, A and μ of the branch pipes are equal. As long as P is equal, the flow G can be equal, thus achieving equal water flow of each branch pipe.

[0090] Similarly, now the water supply manifold is suddenly changed to supply water only from the B end, the first branch pipe 51 is far from the B end, the second branch pipe 52 is close to the B end, the first branch pipe 51 and the second branch pipe 52 have the same diameter. According to the principle of fluid mechanics, the second branch pipe 52 has a small resistance. When water first flows into the automatic flow balancing valve, the automatic flow balancing valve fluid outlet cavity pressure P2' on the second branch pipe 52 is greater than the automatic flow balancing valve fluid outlet cavity pressure P1' on the first branch pipe 51. The automatic flow balancing valve piston on the second branch pipe 52 pushes the balancing fluid to move toward the first branch pipe 51, and at the same time drives the regulating plug to move toward the first branch pipe 51. The valve hole 4 is closed and the flow rate is reduced. Due to the force transmission effect of the balancing liquid, the P2' force acts on the piston of the automatic flow balancing valve on the first branch pipe 51 through P2 and P1. The piston of the automatic flow balancing valve on the first branch pipe 51 pushes the balancing liquid to move to the left, and at the same time drives the regulating plug to move to the left. The valve hole 4 of the automatic flow balancing valve opens wider, the flow increases, and the fluid outlet pressure increases. Finally, the outlet pressures of the two automatic flow balancing valves are equal.

[0091] According to the principle of fluid mechanics, the free opening flow rate at the first branch outlet 40 or the second branch outlet 41 is:

[0092]

[0093] In the formula, A is the cross-sectional area of ​​each inlet pipe, μ is the flow system number, P is the pressure of the fluid outlet cavity, and h is the height between the automatic flow balancing valve and the outlet. Since h is equal between each valve and the outlet, A and μ of the branch pipes are equal. As long as P is equal, the flow G can be equal, and the outlet flow of each branch pipe will also be equal.

[0094] Similarly, if water is supplied from the C end and the B end of the water supply manifold 50 at the same time, due to the force transmission effect of the balancing liquid, the force of the fluid outlet cavity of the automatic flow balancing valve on the first branch pipe 51 and the second branch pipe 52 will eventually reach equality, and the water outlet flow of each branch pipe will also be equal.

[0095] It can be seen from the above application examples that no matter how the water supply direction of the water supply manifold 50 changes, as long as the pipe diameter is the same and the water outlet height is the same, the fluid outlet pressure P1'=P2' in the automatic flow balancing valve in the first branch pipe 51 and the second branch pipe 52 is automatically equal, thereby achieving automatic flow equality.

[0096] Embodiment 3:

[0097] exist Figure 7 In the embodiment shown, an automatic flow balancing valve based on hydraulic force transmission is provided. The automatic flow balancing valve 100 includes a valve body 1, a valve cavity 2 is arranged inside the valve body 1, a valve cavity partition plate 3 is arranged inside the valve cavity 2, the valve cavity partition plate 3 divides the valve cavity 2 into a fluid inlet cavity 21 and a fluid outlet cavity 22, a valve hole 4 connecting the fluid inlet cavity and the fluid outlet cavity is arranged on the valve cavity partition plate 3, a fluid inlet 11 connecting the fluid inlet cavity 21 and a fluid outlet 12 connecting the fluid outlet cavity 22 are arranged on the valve body 1, and the fluid inlet 11 and the fluid outlet 12 are arranged coaxially.

[0098] A balancing liquid regulating mechanism 5 is provided at the valve hole 4; the balancing liquid regulating mechanism 5 includes a balancing liquid chamber 6, a hydraulic self-driving component 7 provided in the balancing liquid chamber 6, and a valve hole regulating assembly 8 connected to the hydraulic self-driving component 7; the hydraulic self-driving component 7 moves due to the pressure difference between the balancing liquid chamber 6 and the fluid outlet chamber 22, thereby driving the valve hole regulating assembly 8 to achieve balanced regulation of the flow rate of the valve hole 4.

[0099] The balancing liquid chamber 6 is divided into a liquid chamber 61 and a fluid chamber 62 by a hydraulic self-driving member 7, and the fluid chamber 62 is connected to the fluid outlet chamber 22; one side of the hydraulic self-driving member 7 is acted upon by the balancing liquid force inside the liquid chamber 61, and the other side of the hydraulic self-driving member 7 is acted upon by the fluid pressure inside the fluid outlet chamber 22.

[0100] The valve hole adjustment assembly 8 includes a guide member 10 and a flow regulator 9 connected to the guide member. One end of the guide member 10 is connected to the hydraulic self-driving member 7 and moves with the hydraulic self-driving member 7. The other end of the guide member 10 is telescopically connected to the inner wall of the valve cavity 2. The guide member 10 is connected to the inner wall of the valve cavity through a guide member sealing retractor 95; an adjustment cavity 101 is provided inside the guide member 10.

[0101] The flow regulator 9 is provided with a progressive regulating valve face 91 , and the large end of the progressive regulating valve face 91 is arranged in the fluid inlet cavity 21 ; the flow regulator 9 is also provided with a force dissipation structure 92 .

[0102] The flow regulator 9 may be a conical plug structure (see Figure 8 ), or the flow regulator 9 is a hammer-like structure (see Fig.10 ), or the flow regulator 9 is a hyperbolic structure (see Figure 7 , Fig. 9 ); the progressive regulating valve face 91 is a conical face of a conical plug body, or a hammer face imitating a hammer body, or a hyperbolic face. The corresponding force-dissipating structure 92 can be an independent conical plug body structure, or the force-dissipating structure 92 and the progressive regulating valve face 91 can be integrally configured as a hammer body structure, or the force-dissipating structure and the progressive regulating valve face 91 can be integrally configured as a hyperbolic body structure.

[0103] A balancing liquid interface 300 communicating with the balancing liquid cavity 6 is arranged outside the valve body where the balancing liquid cavity 6 is located.

[0104] In this embodiment, the axis of the balancing liquid cavity 6 is arranged perpendicular to the axis of the valve cavity. Correspondingly, the balancing liquid interface 300 is arranged on the valve body perpendicular to the axis direction of the valve cavity, and the axis of the balancing liquid interface is arranged coaxially with the axis where the valve hole is located.

[0105] In this embodiment, the hydraulic self-driving member 7 is an elastic valve plate. The periphery of the elastic valve plate is connected to the inner wall of the balancing liquid chamber 6, and the balancing liquid chamber is divided into a liquid chamber 61 and a fluid chamber 62 by the elastic valve plate. A rigid baffle 65 is provided between the fluid chamber 62 and the fluid outlet chamber, and a plurality of holes 66 are provided on the rigid baffle plate, which are connected to the fluid outlet chamber 22. When in use, the elastic deformation of the elastic valve plate drives the flow regulator 9 to move, thereby adjusting the flow of the valve hole.

[0106] One end of the balancing liquid cavity 6 facing the balancing liquid interface is opened and communicates with the balancing liquid interface 300 .

[0107] In this embodiment, the flow regulator 9 is a hyperbolic structure that integrates regulation and force elimination (see Figure 7 In other embodiments, the flow regulator 9 includes a regulating plug 93 and a force dissipating plug 94 which are separately arranged (see Figure 8 In another embodiment, Fig. 9 As shown, the flow regulator 9 is an integrally arranged concave hyperbolic structure, thereby forming an integrated structure for regulating and eliminating forces. Fig.10 As shown, the flow regulator 9 is an integrated hammer-like structure.

[0108] One end of the guide member 10 is connected to the elastic valve plate, and the other end extends through the valve hole toward the inner wall of the valve cavity opposite to the balancing liquid cavity 6, and forms a telescopic sealing connection with the inner wall of the valve cavity through a guide member sealing telescope 95.

[0109] The balancing liquid regulating mechanism 5 further includes a hydraulic self-driving member limit regulating assembly 400 .

[0110] The hydraulic self-driving member limit adjustment assembly 400 is coaxially arranged with the guide member 10 on the valve body outside the guide member sealing retractor.

[0111] The hydraulic self-driving member limit adjustment assembly 400 includes a rolling support 401 arranged outside the valve body 1 and an adjustment rod 402 adjustably connected to the rolling support 401, one end of the adjustment rod 402 is arranged outside the rolling support 401 and is provided with a handle 403, and the other end of the adjustment rod 402 is passed through the adjustment cavity 101 on the adjustment member in the valve hole adjustment assembly 8, and its end is used to limit the movement range of the hydraulic self-driving member 7. A guide rod adjustment disk 404 is also provided at the end of the rolling support 401.

[0112] The rolling support 401 , the guide seal retractor 95 , the guide 10 , the balancing liquid chamber 6 and the balancing liquid interface 300 are arranged coaxially and horizontally.

[0113] The flow regulator 9 is arranged on the outer wall of the guide member 10 , and the fluid regulator 9 is arranged at the valve hole 4 .

[0114] The flow regulator 9 with a hyperboloid structure integrated with regulation and force elimination has regulation and force elimination arranged relatively in a symmetrical structure. In the initial state, the center of the regulation hyperboloid structure coincides with the center point of the valve hole.

[0115] The axis of the guide member 10 is the same as the axis of the elastic valve plate. The guide member 10 is fixedly connected to the elastic valve plate. The flow regulator 9 as a whole can move left and right along with the adjustment rod 402 under the drive of the elastic valve plate.

[0116] When in use, the left side of the elastic valve disc contains the fluid that needs to be regulated, that is, the fluid inside the valve cavity, and the inside of the balancing liquid cavity on the right side of the elastic valve disc contains the balancing liquid fluid. When the force of the fluid on the left side of the piston elastic valve disc is greater than the force of the balancing liquid on the right side, the elastic valve disc deforms to the right, driving the flow regulator to move toward the valve hole. Since the flow regulator is a hyperbolic structure, the closer it is to the valve hole, the smaller the flow of the valve hole will be. Therefore, moving the flow regulator toward the valve hole will close the valve hole. When the force of the fluid on the left side of the elastic valve disc is less than the force of the balancing liquid on the right side, the elastic valve disc deforms to the left, driving the flow regulator away from the valve hole, thereby opening the valve hole. When the force of the fluid on the left side of the elastic valve disc is equal to the force of the balancing liquid on the right side, the elastic valve disc does not deform, and the valve hole maintains its original opening.

[0117] The valve body is provided with an adjusting rod 402, and a handle 403 is provided on the adjusting rod 402. The initial position of the piston can be limited by rotating the handle 403, and the handle 403 rotates according to the scale on the guide rod adjusting disk 404. The deformation range of the elastic valve sheet is limited by the adjusting rod 402, thereby limiting the flow area between the flow regulator and the valve hole.

[0118] When in use, the fluid enters the fluid inlet chamber 21 from the fluid inlet 11, flows into the fluid outlet chamber 22 through the valve hole 4, and finally flows out from the fluid outlet 12. The balancing liquid interface 300 is connected to the balancing liquid interface 300 of other valve bodies, and the balancing liquid chamber 6 is injected with incompressible fluid, such as mineral oil.

[0119] The valve body is provided with an adjusting rod 402, and a handle 403 is provided on the adjusting rod 402. The handle 403 can be rotated to limit the initial position of the elastic valve plate through the end of the adjusting rod. The flow area between the flow regulator and the valve hole is limited by limiting the deformation range of the elastic valve plate. In the initial state, the elastic valve plate is not deformed and is in the middle of the balance liquid cavity, and the flow area of ​​the valve hole is 100%; when the elastic valve plate is deformed to the bottom, it is the maximum adjustment amount, and the flow volume of the valve hole is the smallest; when the elastic valve plate is deformed to the top, it is the minimum adjustment amount 0%, and the flow area of ​​the valve hole is the largest.

[0120] The guide member 10 is fixedly connected to the elastic valve disc, and the flow regulator as a whole can move left and right along the adjusting rod 402 with the elastic valve disc. When the force of the fluid in the fluid outlet chamber 22 acting on the elastic valve disc is greater than the force of the balancing liquid chamber 6 on the elastic valve disc, the elastic valve disc deforms to the right, and the flow regulator as a whole moves to the right along the adjusting rod 402 along with the deformation of the elastic valve disc, driving the flow regulator to close the valve hole 4, and the outflow of the fluid outlet chamber 22 is reduced; when the force of the fluid in the fluid outlet chamber 22 acting on the elastic valve disc is less than the force of the balancing liquid chamber 6 on the elastic valve disc, the flow regulator as a whole moves to the left along the adjusting rod 402 along with the deformation of the elastic valve disc, driving the flow regulator to open the valve hole 4, and the outflow of the fluid outlet chamber 22 is increased; when the force of the fluid in the fluid outlet chamber 22 acting on the elastic valve disc is equal to the force of the balancing liquid chamber 6 on the elastic valve disc, the elastic valve disc does not deform, the flow regulator as a whole does not move, the opening of the valve hole 4 remains unchanged, and the outflow of the fluid outlet chamber 22 remains unchanged.

[0121] By adjusting the pressure of the balancing liquid to be equal to that of the fluid outlet cavity, the purpose of controlling the fluid flowing through the fluid outlet cavity is achieved.

[0122] The automatic flow balancing valve based on hydraulic force transmission in the above embodiment can be widely used for flow balancing of open water supply systems such as air conditioning cooling water supply systems. It effectively solves the problem that the uneven distribution of water supply flow in the existing cooling water system leads to uneven water film on the filler, poor heat dissipation effect of the cooling tower, and the outlet water temperature after cooling by the cooling tower will be higher than the normal value. The increase in the outlet water temperature of the cooling tower will cause the efficiency of the refrigeration host to decrease, and the energy consumption of the air conditioning system will increase. The use of this valve can evenly distribute the outlet water flow of each water supply pipe of the cooling tower, realize automatic flow balance, make the water film in each tower evenly distributed, improve the heat dissipation effect of the cooling system, and reduce the energy consumption of the cooling system.

[0123] The uniform distribution of water flow in the cooling tower is a key factor affecting the heat dissipation effect of the cooling tower. The automatic flow balancing valve based on hydraulic force transmission can sense the outlet water pressure between the valves in the water supply pipe, and make the outlet water pressure of each valve equal through hydraulic force transmission, automatically adjust the resistance of the valve, and realize automatic balance of the flow of the inlet and outlet pipes of the cooling tower.

[0124] The energy consumption of the cooling system of the data center accounts for about 40% of the total energy consumption of the data center. The hydraulic balance of the cooling tower is an important factor affecting the heat dissipation effect of the cooling system. The use of this valve can evenly distribute the water flow of each water supply pipe of the cooling tower, realize automatic flow balance, and make the water film in each tower evenly distributed, thereby improving the heat dissipation effect of the cooling system and reducing the energy consumption of the cooling system.

[0125] The above specific implementation modes / embodiments are specific implementation modes of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments described herein, which are within the protection scope of the present invention.

Claims

1. An automatic flow balancing valve based on hydraulic force transmission, comprising a valve body (1), a valve chamber (2) being arranged inside the valve body (1), characterized in that: The valve cavity (2) comprises a fluid inlet cavity (21) and a fluid outlet cavity (22) which are interconnected via a valve hole (4), and a balancing liquid regulating mechanism (5) is arranged at the valve hole (4); the balancing liquid regulating mechanism (5) comprises a balancing liquid cavity (6), a hydraulic self-driven component (7) arranged in the balancing liquid cavity (6), and a valve hole regulating assembly (8) connected to the hydraulic self-driven component (7); a balancing liquid interface (300) which is connected to the balancing liquid cavity (6) is arranged outside the valve body; the automatic flow balancing valve is installed on two branch pipes of the water supply manifold (50), the balancing liquid interfaces (300) of the two automatic flow balancing valves (100) are connected via a balancing liquid connecting pipe (30), and an incompressible fluid is injected into the balancing liquid connecting pipe (30); the hydraulic self-driven component (7) moves due to the pressure difference between the balancing liquid cavity (6) and the fluid outlet cavity (22), thereby driving the valve hole regulating assembly (8) to achieve balanced regulation of the valve hole flow rate.

2. The automatic flow balancing valve based on hydraulic force transmission according to claim 1 is characterized in that: The balancing liquid chamber (6) is divided into a liquid chamber (61) and a fluid chamber (62) by a hydraulic self-driving member (7); the fluid chamber (62) is connected to the fluid outlet chamber (22); one side of the hydraulic self-driving member (7) is acted upon by the balancing liquid force inside the liquid chamber (61), and the other side of the hydraulic self-driving member (7) is acted upon by the fluid pressure inside the fluid outlet chamber (22).

3. The automatic flow balancing valve based on hydraulic force transmission according to claim 2 is characterized in that: The hydraulic self-driving component (7) is a piston; or the hydraulic self-driving component (7) is an elastic valve plate.

4. The automatic flow balancing valve based on hydraulic force transmission according to claim 1 is characterized in that: The valve hole adjustment assembly (8) comprises a guide member (10) and a flow regulator (9) connected to the guide member (10), one end of the guide member (10) is connected to the hydraulic self-driving member (7) and moves with the hydraulic self-driving member (7), and the other end of the guide member (10) is telescopically connected to the inner wall of the valve cavity.

5. The automatic flow balancing valve based on hydraulic force transmission according to claim 4 is characterized in that: The guide member (10) is connected to the inner wall of the valve cavity via a guide member sealing retractor (95); an adjusting cavity (101) is provided inside the guide member (10).

6. The automatic flow balancing valve based on hydraulic force transmission according to claim 4 is characterized in that: The flow regulator (9) is provided with a progressive regulating valve face (91), and the large end of the progressive regulating valve face (91) is arranged in the fluid inlet chamber (21); the flow regulator (9) is also provided with a force dissipation structure (92).

7. The automatic flow balancing valve based on hydraulic force transmission according to claim 6 is characterized in that: The flow regulator (9) is a conical plug structure, or the flow regulator (9) is a hammer-like structure, or the flow regulator (9) is a hyperbolic structure; the progressive regulating valve surface (91) is a conical surface of the conical plug, or a hammer-like hammer surface, or a hyperbolic surface.

8. The automatic flow balancing valve based on hydraulic force transmission according to any one of claims 1 to 7, characterized in that: The balancing liquid adjustment mechanism (5) further comprises a hydraulic self-driving member limit adjustment assembly (400).

9. The automatic flow balancing valve based on hydraulic force transmission according to claim 8, characterized in that: The hydraulic self-driving member limit adjustment assembly (400) comprises a rolling support (401) arranged outside the valve body (1) and an adjustment rod (402) adjustably connected to the rolling support (401), one end of the adjustment rod (402) being arranged outside the rolling support (401) and provided with a handle (403), and the other end of the adjustment rod (402) being passed through the interior of the valve hole adjustment assembly (8), and the end portion thereof being used to limit the movement range of the hydraulic self-driving member (7).

10. The automatic flow balancing valve based on hydraulic force transmission according to any one of claims 1 to 7, characterized in that: The fluid inlet chamber (21) and the fluid outlet chamber (22) are formed by dividing the valve chamber through a valve chamber dividing plate (3), and the valve hole (4) is formed by the valve chamber dividing plate (3).

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