Fluid control valve and ball fixing frame thereof
By setting a magnet on the end of the solid ball frame of the fluid control valve, the magnetic ball is allowed to leave the part end and perform blocking control under the action of fluid thrust, the fluid stability problem caused by the sway of the ball in the prior art is solved, and more stable fluid control is achieved.
Patent Information
- Application Number
- CN202311310351.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-11
- Publication Date
- 2025-04-11
AI Technical Summary
In existing fluid control valves, the ball is prone to shake when the fluid blocking control is not performed, resulting in interference in the stability of the fluid flowing through the valve body.
A fluid control valve is designed, and the placement end of the solid ball frame is provided with a magnet member. The magnetic ball is against the placement end under the suction force of the magnet member. When the fluid thrust is greater than the suction force between the magnet member and the magnetic ball, the magnetic ball is disengaged from the placement end and performs blocking control, and then returns to the placement end after recovery.
It ensures that the magnetic ball is stable against the end of the placement due to the magnetic attraction of the magnet part when the fluid blocking control is not performed, avoids the swaying of the ball and improves the stability of the fluid control.
Smart Images
Figure CN119802289A_ABST
Abstract
Description
Technical Field
[0001] The present invention is applied to the field of fluids, for example, the control of fluids inside gas pipelines and liquefied gas pipelines, wherein the fluid control includes non-return function, over-flow blocking function, current limiting function, etc., and particularly relates to a fluid control valve and a ball support thereof. Background Art
[0002] Gas refers to gas that can be used as fuel (for example: natural gas, gas, coal gas). It can generate a large amount of heat energy after combustion, so it is widely used in life. For example, water heaters, gas stoves, etc. are commonly used devices in life that use combustion of gas as kinetic energy.
[0003] However, in order to avoid some common accidents in the use of gas, valves for controlling the fluid are generally installed on the transmission paths of both natural gas and liquefied gas. For example, in order to prevent the pipeline of one gas cylinder in a collective gas pipeline from being damaged and causing the gas of the remaining gas cylinders to flow to the damaged pipeline through the collective pipe, a check valve is installed between the collective pipe and each gas cylinder. In other cases, if the gas is to be able to immediately block the gas from leaking from the source when the pipeline is damaged, an overflow valve is used in the gas pipeline.
[0004] Among the products currently on the market, whether it is a superflow valve or a check valve, a common practice is to set a ball inside to control the fluid according to the design purpose. However, the current products that use a ball to control the fluid have restrictions on the installation angle. Otherwise, the ball is easy to shake inside the product when the fluid blocking control is not performed, thereby causing the stability of the fluid flowing through the valve body to be disturbed. Summary of the invention
[0005] The main technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a fluid control valve and a ball-fixing rack thereof, wherein a magnet is arranged at the placement end of the ball-fixing rack. Therefore, when the ball-fixing rack is arranged on the valve body and the magnet faces the magnetic ball, the magnetic ball can be attracted by the suction force of the magnet and lean against the placement end. When the fluid flows through the magnetic ball, if the thrust generated by the fluid is greater than the suction force between the magnet and the magnetic ball, the magnetic ball will separate from the placement end and perform superfluid and countercurrent fluid blocking. When the abnormality is resolved and the thrust of the magnetic ball separating from the placement end disappears, the magnetic ball will return to the state of leaning against the placement end due to the magnetic attraction of the magnet. Therefore, it can be known that after the ball-fixing rack is indeed arranged on the valve body, the magnetic ball will lean against the placement end due to the magnetic attraction of the magnet when the fluid blocking control is not performed, and therefore will not move at will.
[0006] The technical solution adopted by the present invention to solve its technical problem is:
[0007] A fluid control valve comprises: a valve body, which comprises a first ventilation part and a second ventilation part, a first valve air channel is provided between the first ventilation part and the second ventilation part, the valve body has an annular retaining part on the inner wall surface between the second ventilation part and the first valve air channel, and the second valve air channel connected with the first valve air channel passes through the annular retaining part; a fixed ball rack, whose two opposite ends are respectively a placement end and a connecting end, and the connecting end has an end through hole, and the fixed ball rack has a side through hole at a position between the placement end and the connecting end, and the side through hole is respectively connected with the first valve air channel and the end through hole, the placement end is provided with a magnet, the connecting end is connected to the inner wall of the first ventilation part, and the placement end faces the annular retaining part; a magnetic ball, which is movably arranged in the first valve air channel and is located between the annular retaining part and the placement end.
[0008] Furthermore, the mounting end of the ball holder has a mounting long hole, the inner wall of the mounting long hole has a thread, and one end of the magnet component is provided with a screw matching the thread of the inner wall of the mounting long hole.
[0009] Furthermore, the screw has an operating groove on one side facing the connecting end.
[0010] Furthermore, the magnet is located at the center of the placement end.
[0011] A ball fixing bracket for a fluid control valve, wherein: the two opposite ends of the ball fixing bracket are respectively a placement end and a connection end, the connection end has an end through hole, the ball fixing bracket has a side through hole at a position between the placement end and the connection end, the side through hole is connected to the end through hole, and the placement end is provided with a magnet.
[0012] Furthermore, the mounting end of the ball holder has a mounting long hole, the inner wall of the mounting long hole has a thread, and one end of the magnet component is provided with a screw matching the thread of the inner wall of the mounting long hole.
[0013] Furthermore, the screw has an operating groove on one side facing the connecting end.
[0014] Furthermore, the magnet is located at the center of the placement end.
[0015] Furthermore, the number of the side through holes is several and they are arranged in a ring shape.
[0016] The beneficial effect of the present invention is that a magnet is provided at the placement end of the ball-fixing rack, so when the ball-fixing rack is set on the valve body and the magnet faces the magnetic ball, the magnetic ball can be attracted by the suction force of the magnet and lean against the placement end, and when the fluid flows through the magnetic ball, if the thrust generated by the fluid is greater than the suction force between the magnet and the magnetic ball, the magnetic ball will detach from the placement end and perform superfluid and countercurrent fluid blocking. When the abnormality is resolved and the thrust of the magnetic ball detaching from the placement end disappears, the magnetic ball will return to the state of leaning against the placement end due to the magnetic attraction of the magnet. Therefore, it can be known that after the ball-fixing rack is indeed set on the valve body, the magnetic ball will lean against the placement end due to the magnetic attraction of the magnet when the fluid blocking control is not performed, and therefore will not move at will. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0018] Figure 1 It is a three-dimensional schematic diagram of the ball-fixing rack.
[0019] Figure 2 This is a schematic diagram of the decomposition of the fixed ball rack.
[0020] Figure 3 for Figure 1 Schematic diagram of the cross section of line segment III-III.
[0021] Figure 4 It is a schematic diagram of an implementation state of a valve body of the present invention.
[0022] Figure 5 for Figure 4 Schematic diagram of the cross section of line segment VV.
[0023] Figure 6 This is a schematic diagram of the magnetic ball being pushed away from the mounting end by the fluid.
[0024] Figure 7 It is a schematic diagram of another embodiment of a valve body of the present invention.
[0025] Figure 8 This is a schematic diagram of another embodiment of the valve body of the present invention and the magnetic ball being pushed away from the mounting end by the fluid.
[0026] Fig. 9 It is another three-dimensional schematic diagram of the fixed ball rack.
[0027] Fig.10 This is another schematic diagram of the decomposition of the fixed ball frame.
[0028] Fig.11 for Fig. 9 Schematic diagram of the cross section along line segment XI-XI.
[0029] Fig.12 Schematic diagram for adjusting the position of the magnet.
[0030] Description of the numbers in the figure:
[0031] 1 Valve body
[0032] 11. First ventilation section
[0033] 12 Second ventilation section
[0034] 13 First valve airway
[0035] 14 Annular stopper
[0036] 141 Second valve airway
[0037] 142 Leakage-proof ring
[0038] 2 ball rack
[0039] 21 Component side
[0040] 211 Long hole for mounting parts
[0041] 22 Connection terminal
[0042] 221 through hole
[0043] 23 Side through hole
[0044] 24 Magnets
[0045] 25 Screw
[0046] 251 Operation slot
[0047] 3 magnetic balls DETAILED DESCRIPTION
[0048] To understand the embodiments of the present invention in more detail, please refer to the accompanying drawings. Figures 1 to 3 What is presented is a ball-fixing rack 2, wherein: the two opposite ends of the ball-fixing rack 2 are respectively a placement end 21 and a connection end 22, the connection end 22 has an end through hole 221, the ball-fixing rack 2 has a side through hole 23 at a position between the placement end 21 and the connection end 22, the side through hole 23 is connected to the end through hole 221, and the placement end 21 is provided with a magnet 24.
[0049] Continue as Figure 4 , Figure 5As presented, there is a valve body 1, which includes a first ventilation portion 11 and a second ventilation portion 12, and a first valve air channel 13 is provided between the first ventilation portion 11 and the second ventilation portion 12. The valve body 1 has an annular retaining portion 14 on the inner wall surface between the second ventilation portion 12 and the first valve air channel 13, and a second valve air channel 141 connected to the first valve air channel 13 passes through the annular retaining portion 14; the connecting end 22 of the fixed ball frame 2 is connected to the inner wall of the first ventilation portion 11, and the placement end 21 faces the annular retaining portion 14; the magnetic ball 3 is movably arranged in the first valve air channel 13 and is located between the annular retaining portion 14 and the placement end 21.
[0050] The material of the magnetic ball 3 can be a magnetic material such as iron, cobalt, nickel, etc. The magnetic material may not necessarily have magnetism, but when it is close to a magnet, it will be magnetized and thus have magnetism. Therefore, the magnet member 24 can attract the magnetic ball 3 with magnetic force.
[0051] The annular stopper 14 may include a leak-proof ring 142 .
[0052] The above content is further described in detail. Figure 5 As shown, the placement end 21 of the ball-fixing frame 2 is provided with a magnet 24. Therefore, when the ball-fixing frame 2 is set on the valve body 1 and the magnet 24 faces the magnetic ball 3, the magnetic ball 3 can be pressed against the placement end 21 due to the magnetic attraction of the magnet 24, and when the fluid flows through the magnetic ball 3, if the thrust generated by the fluid is greater than the suction between the magnet 24 and the magnetic ball 3, the magnetic ball 3 will be separated from the placement end 21 and perform superfluid and countercurrent fluid blocking. When the abnormality is resolved and the thrust of the magnetic ball 3 being separated from the placement end 21 disappears, the magnetic ball 3 will return to the state of being pressed against the placement end 21 due to the magnetic attraction of the magnet 24. It can be known that after the ball-fixing frame 2 is indeed set on the valve body 1, the magnetic ball 3 is pressed against the placement end 21 due to the magnetic attraction of the magnet 24 when the fluid blocking control is not performed, so it will not move at will.
[0053] The type of fluid control performed by the valve body 1 is mainly determined based on the inlet and outlet of the normal flow of the fluid, for example Figure 5 The conventional flow direction of the fluid is shown in the arrow direction in the figure. The first vent 11 is the fluid outlet position and the second vent 12 is the fluid inlet position. In this state, the fluid control of the valve body 1 belongs to the check valve type. Therefore, when the fluid flows in Figure 6 When the arrow indicates reverse flow and the thrust generated by the fluid is greater than the attraction between the magnet 24 and the magnetic ball 3 , the magnetic ball 3 will separate from the placement end 21 and block the communication between the first valve air passage 13 and the second valve air passage 141 .
[0054] Furthermore, if it is applied to a manifold of liquefied gas, when the liquefier is shut down, the thrust of the fluid inside the manifold is insufficient to cause the magnetic ball 3 to separate from the mounting end 21. Therefore, part of the fluid inside the manifold can smoothly flow back to avoid accumulation inside the manifold, thereby reducing the risk of the manifold bursting.
[0055] If the valve body 1 is Figure 7 The normal flow direction of the fluid is shown in the direction of the arrow in the figure. The first vent 11 is the fluid inlet position, and the second vent 12 is the fluid outlet position. When the fluid flows normally, its thrust is not enough to make the magnetic ball 3 separate from the mounting end 21. In this state, the fluid control of the valve body belongs to the super flow valve type. When an accident occurs, such as the rear end pipeline ruptures, the thrust of the fluid in the pipeline will instantly increase and make the fluid thrust as Figure 8 The present invention is sufficient to make the magnetic ball 3 separate from the placement end 21, so as to block the communication between the first valve air passage 13 and the second valve air passage 141 to prevent the fluid from continuing to leak out when an accident occurs.
[0056] From the above content, it can be known that the ball fixing bracket 2 of the present invention can make the magnetic ball 3 lean against the placement end 21 due to the magnetic attraction of the magnet 24 when the fluid blocking control is not performed, regardless of the type of fluid control valve body 1 it is applied to. Under this technology of fixing the position of the magnetic ball 3 with magnetic force, the magnetic ball 3 will not move when the fluid blocking control is not performed, regardless of the angle at which the valve body 1 is installed in the target position, which can indeed improve the problems of traditional products.
[0057] In addition, Figures 9 to 11 As shown, the mounting end 21 of the ball holder 2 has a mounting long hole 211, the inner wall of the mounting long hole 211 has a thread, and one end of the magnet member 24 is provided with a screw 25 matching the inner wall thread of the mounting long hole 211, and the screw 25 has an operating groove 251 on the side facing the connecting end 22. The shape of the operating groove 251 can be hexagonal, flat, cross, etc. In this embodiment, the operating groove 251 is an example of a hexagonal shape. Such a structure can enable users to Fig.12 As shown, the position of the magnet 24 in the long hole 211 of the mounting part is adjusted by inserting a hand tool into the operating slot 251, thereby changing the distance between the magnetic ball 3 and the magnet 24 when the magnetic ball 3 abuts against the mounting end 21, thereby adjusting the force required to push the magnetic ball 3 away from the mounting end 21.
[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A fluid control valve, characterized in that: include: A valve body, comprising a first vent portion and a second vent portion, wherein a first valve air passage is provided between the first vent portion and the second vent portion, wherein an annular stopper is provided on the inner wall surface of the valve body between the second vent portion and the first valve air passage, and a second valve air passage communicating with the first valve air passage passes through the annular stopper; A fixed ball rack, whose two opposite ends are a placement end and a connection end, respectively, the connection end has an end through hole, the fixed ball rack has a side through hole at a position between the placement end and the connection end, the side through hole is respectively connected to the first valve airway and the end through hole, the placement end is provided with a magnet, the connection end is connected to the inner wall of the first vent, and the placement end faces the annular blocking portion; The magnetic ball is movably arranged in the first valve air passage and is located between the annular blocking portion and the placement end.
2. The fluid control valve according to claim 1, characterized in that: The mounting end of the ball fixing frame is provided with a mounting long hole, the inner wall of the mounting long hole is provided with a thread, and one end of the magnet component is provided with a screw component matching the thread of the inner wall of the mounting long hole.
3. The fluid control valve according to claim 2, characterized in that: The screw has an operating groove on one side facing the connecting end.
4. The fluid control valve according to claim 1, characterized in that: The magnet is located at the center of the placement end.
5. A ball holder for a fluid control valve, characterized in that: The two opposite ends of the fixed ball rack are respectively a placement end and a connection end, the connection end has an end through hole, the fixed ball rack has a side through hole between the placement end and the connection end, the side through hole is connected to the end through hole, and the placement end is provided with a magnet.
6. The ball holder for a fluid control valve according to claim 5, characterized in that: The mounting end of the ball fixing frame is provided with a mounting long hole, the inner wall of the mounting long hole is provided with a thread, and one end of the magnet component is provided with a screw component matching the thread of the inner wall of the mounting long hole.
7. The ball holder for a fluid control valve according to claim 6, characterized in that: The screw has an operating groove on one side facing the connecting end.
8. The ball holder for a fluid control valve according to claim 5, characterized in that: The magnet is located at the center of the placement end.
9. The ball holder for a fluid control valve according to claim 5, characterized in that: The side through holes are in multiple number and arranged in a ring shape.