CN112178214B - High-temperature-resistant high-pressure zero-leakage electromagnetic valve - Google Patents
High-temperature-resistant high-pressure zero-leakage electromagnetic valve Download PDFInfo
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- CN112178214B CN112178214B CN202011065030.2A CN202011065030A CN112178214B CN 112178214 B CN112178214 B CN 112178214B CN 202011065030 A CN202011065030 A CN 202011065030A CN 112178214 B CN112178214 B CN 112178214B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a high-temperature-resistant high-pressure zero-leakage electromagnetic valve, wherein a first valve through pipe and a second valve through pipe are communicated or sealed through a valve through control chamber, the periphery of the valve through control chamber is provided with an outer shell isolated from the interior of the valve through control chamber, the upper part of the valve through control chamber is provided with a comprehensive electric control box isolated from the interior of the valve through control chamber, the inner cavity of the valve through control chamber is specifically provided with a plurality of layers of stepped grooves, the middle part of each layer of stepped groove can be communicated up and down, the periphery of each layer of stepped groove is communicated upwards only, each layer of stepped groove is provided with a control piston capable of moving up and down, the lower interface of the piston of each control piston can completely cover the middle through hole of the stepped groove in which the control piston is positioned, so that the communication between the first valve through pipe and the second valve through pipe can be sealed when the control piston is tightly attached to the stepped grooves, and the bottom of each stepped groove is provided with a groove bottom interface; the invention effectively improves the sealing property of the electromagnetic valve piston and the connecting part thereof, reduces leakage and can realize the state of zero leakage required in special environment.
Description
Technical Field
The invention relates to an electromagnetic valve, in particular to a high-temperature and high-pressure resistant zero-leakage electromagnetic valve.
Background
The traditional electromagnetic valve is generally simpler in structure, not fine enough in structure and easy to leak, particularly the electromagnetic valve is easy to leak in a high-temperature and high-pressure environment, the leakage is caused by the fact that the connection between a piston and a part in contact with the piston is not tight enough, after a long time, air pressure or hydraulic pressure is easy to break through the connection to cause the leakage of the electromagnetic valve, or the high-temperature and high-pressure environment causes the deformation of the piston of the electromagnetic valve and the part in contact with the piston to cause the leakage because the connection between the piston and the part in contact with the piston is not tight enough originally; the leakage of the solenoid valve often causes many problems, and especially, the risk is increased when the gas or liquid in the solenoid valve pipeline is harmful, so that a solenoid valve with zero leakage, even a solenoid valve with zero leakage in a high-temperature and high-pressure environment, is a great demand. Then, as the knife switch type high-temperature high-pressure zero-leakage electromagnetic valve disclosed in chinese patent application (the prior publication is not yet authorized), CN201611197979.1, includes an electromagnetic valve outer shell, an outer hexagonal screw is disposed on the top of the electromagnetic valve outer shell, an elastic pad is disposed below the outer hexagonal screw, a flat pad is disposed below the elastic pad, a nameplate is disposed below the flat pad, a stationary iron core is disposed above the inside of the electromagnetic valve outer shell, an electromagnetic valve cover is disposed outside the stationary iron core, an electromagnetic valve core is disposed below the electromagnetic valve cover, electromagnets are disposed on two sides of the electromagnetic valve cover, an electromagnetic valve body is disposed below the electromagnetic valve core, a flashboard is disposed at the middle position inside the electromagnetic valve body, the actual effect of the electromagnetic valve cannot achieve a true zero-leakage electromagnetic valve, and the leakage still exists due to the fact that the connection between the piston and the component in contact with the piston is not tight enough, or the connection between the piston and the contact parts is not tight enough originally, and the high-temperature and high-pressure environment causes the deformation of the piston of the electromagnetic valve and the contact parts, thereby causing the leakage problem.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the high-temperature and high-pressure resistant zero-leakage electromagnetic valve which can effectively improve the sealing property of the electromagnetic valve piston and a connecting part of the electromagnetic valve piston, reduce leakage, realize the adjustment of the electromagnetic valve to be in a zero-leakage state in special environmental requirements so as to reduce the risk of gas or liquid leakage of the electromagnetic valve and has more specific effects.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the high-temperature resistant high-pressure zero-leakage electromagnetic valve comprises a first valve through pipe and a second valve through pipe, wherein the first valve through pipe and the second valve through pipe are communicated or sealed through a valve through control chamber, the periphery of the valve control chamber is provided with an outer shell isolated from the interior of the valve control chamber, the upper part of the valve control chamber is provided with a comprehensive electric control box isolated from the interior of the valve control chamber, the inner cavity of the valve control chamber is specifically provided with a plurality of layers of stepped grooves, the middle part of each layer of the stepped groove can be communicated up and down, the periphery of each layer of the stepped groove is communicated upwards only, each layer of the stepped groove is provided with a control piston which can move up and down, the lower interface of the piston of each control piston can completely cover the middle through hole of the stepped groove of the layer in which the control piston is positioned, when the control piston is tightly attached to the stepped grooves, the communication between the first valve-through pipe and the second valve-through pipe can be closed, and the bottom of each stepped groove is provided with a groove bottom interface; through spring fixed connection between the control piston of adjacent layer, the control piston of top layer leads to the control chamber roof through the spring coupling valve, every control piston inside edge all set up the permanent magnet, correspondingly, the bottom surface that just is located its and control piston juncture in the comprehensive electric control box sets up a plurality of solenoid groups to make each permanent magnet all have in vertical direction rather than the solenoid group of can act on the electromagnetic force, solenoid group on the circuit with the comprehensive control circuit board electricity that sets up in the comprehensive electric control box be connected, the comprehensive control circuit board on the circuit with the power electricity that sets up in the comprehensive electric control box be connected.
In a preferred or alternative embodiment, the power supply is a circuit with a transformer connected to an external power supply.
In a preferred or alternative embodiment, the first valve-through pipe or the second valve-through pipe is provided with threads for facilitating connection.
In a preferred or alternative embodiment, the control piston or the stepped groove is five layers.
In a preferable or optional embodiment, the groove bottom interfaces of the second layer and the third layer of stepped grooves in the sequence from top to bottom are provided with a bottom interface groove downwards, a test conductor ring is fixed in each bottom interface groove, each test conductor ring is electrically connected with a resistance test circuit box fixed in the outer shell, the groove side interface of the topmost stepped groove is outwards provided with a groove, the shape of the groove is deep at the top and shallow at the bottom, spare solid glue is uniformly filled in the groove, the periphery of the standby solid glue is arranged in the shell body, a standby heating electric wire is arranged in the shell body, the standby heating electric wire is electrically connected with a standby heating control circuit box fixed in the shell body, the comprehensive control circuit board is provided with a control single chip microcomputer, the control single chip microcomputer is electrically connected with each resistance test circuit box, and the control single chip microcomputer is also electrically connected with each standby heating control circuit box.
In a preferred or optional embodiment, the vertical cross-sectional shape of the standby heating electric wire is an inverted "L" shape, and the vertical side is inclined, so that the standby heating electric wire uniformly covers the standby solid glue, and when the standby heating electric wire is heated, the standby solid glue can be uniformly melted into a liquid state and flows downwards to be cured again.
In a preferred or alternative embodiment, the material of the ready-to-use solid glue is specifically prepared from a mixed component of epoxy resin, watt fumed silica powder and vinyltriethoxysilane, and an antioxidant and a curing agent are added in the preparation process, so that the ready-to-use solid glue has the characteristics of being easily melted by heating and being easily cured after being melted.
In a preferred or alternative embodiment, the interfacing contact surface between the lower piston interface and the bottom groove interface is curved.
In a preferred or optional embodiment, the interface contact surface between the lower interface of the piston and the bottom interface of the groove is a curved surface, and specifically, the upper and lower boundary lines of the interface contact surface facing the longitudinal section away from the center of the piston are both curves which can be fitted as functions, and the curve shapes of the upper and lower boundary lines are the same; the curved shape of the upper and lower boundary lines is also required to satisfy the following condition, and then the upper and lower boundary lines are used as standard boundary lines to be configured and manufactured on the boundary contact surface of the lower interface of the piston and the bottom interface of the groove so as to form a standard curved surface:
dividing a function image which can be directly fitted with the curve shape of an upper boundary line or a lower boundary line into a plurality of parts on a definition domain, wherein the interval length of the definition domain of each function image is equal, fitting each function image into a simulation function image, counting the leakage probability any of different parts anx of a curve when each simulation function image is used as the shape of the independent upper boundary line and the independent lower boundary line, establishing the leakage function any = f0n (anx) corresponding to each simulation function by taking the leakage probability of different parts as dependent variables and taking the different parts of the curve as independent variables, wherein n represents a natural number, and the leakage function any is directly fitted in the definition domain of each leakage functionCalculating a single integral quantity of the corresponding function, and then calculating the product p = of all integral quantities
×
×
×……×
Until p satisfies the threshold.
In a preferred or alternative embodiment, the function to which the curve shape of the upper boundary can be fitted is f1 (x), and the function to which the curve shape of the lower boundary can be fitted is f2 (x), the position offset of the upper and lower boundaries when they are in contact is obtained by statistics, and the offset is quantified to the coordinate system of f1 (x) and f2 (x) and expressed as Δ x, that is, when the upper and lower boundaries are in contact and there is a position offset, it is satisfied: f1 (x) = f2 (| x- Δ x |), and then a parameter function f3 (x) = f1 (x) -f2 (x) is constructed; calculating an integral q1 of f3 (x) when the offset Δ x approaches 0; or the offset delta x is reduced to 0 equidistantly and gradually, the number q2 of solutions of f3 (x) =0 is calculated at the new offset after each step is reduced, and the statistics is carried out that the offset delta x is reduced to 0 equidistantly and gradually, and the total number of all q2 in the process is counted, then the curve shape of the upper boundary line and the curve shape of the lower boundary line are configured to be manufactured to the interface contact surface of the lower interface of the piston and the bottom interface of the groove as standard boundary lines to form a standard curved surface, and the requirement that the q1 is greater than the threshold value is met, or the q3 is greater than the threshold value is met.
The electromagnetic valve has the beneficial effects that the sealing performance of the electromagnetic valve piston and the connecting part of the electromagnetic valve piston can be effectively improved, the leakage is reduced, and the electromagnetic valve can be adjusted to be in a zero-leakage state in special environment requirements so as to reduce the risk of gas or liquid leakage of the electromagnetic valve; specifically, the electromagnetic coil group generates electromagnetic force by electrifying, the direction of the control electromagnetic force is different from or the same as the magnetic force of the upper end of the permanent magnet in the corresponding control piston, and then the control piston is tightly attached to the bottom interface of the groove at the lower part of the control piston or is far away from the bottom interface of the groove at the lower part of the control piston, so that the communication or the sealing between the first valve through pipe and the second valve through pipe is adjusted, and the control pistons at all layers can be independently adjusted or integrally adjusted correspondingly. When the requirement of the high-pressure high-temperature environment on the sealing property of the electromagnetic valve is low, the adjustment of the control piston on the uppermost layer can be realized only by electrifying the electromagnetic coil group on the most edge, only one layer of control piston needs to be adjusted, when the requirement of the high-pressure high-temperature environment on the sealing property of the electromagnetic valve is high, the control pistons of multiple layers need to be adjusted, even all the control pistons can be adjusted, the sealing degree of the electromagnetic valve can be controlled in a stepped mode, and the electromagnetic valve is also controlled to prevent leakage.
In addition, compared with the prior art, the preferred technical scheme provided by the invention can at least produce the following technical effects: the resistance test circuit box detects the resistance change and then sends a notification signal to the control single chip microcomputer, the control single chip microcomputer can calculate the diffusion speed of gas or liquid from the time interval of receiving the signals of the two resistance test circuit boxes, and further can estimate the shortest time that the gas or liquid is possibly diffused into the uppermost step groove, the single chip microcomputer control circuit can also control the standby heating control circuit box in the shortest time and enable the standby heating control circuit box and the standby heating electric wire to be conducted and heated, and can also control the heating power of the standby heating electric wire to enable the standby solid glue to be melted in the shortest time, and the melted standby solid glue can flow downwards and fill all gaps at the contact part of the step groove and the lower interface of the piston at the lower part of the control piston, and can be cured quickly to form a completely closed state that the first valve through pipe and the second valve through pipe are not communicated again, in this way, zero leakage of the solenoid valve can be achieved under special requirements. The method also adopts the mode of configuring the boundary contact surface of the lower interface of the piston and the bottom interface of the groove as a curved surface and reasonably configuring the curved surface to maximize the tightness of the control solenoid valve, and particularly, the upper boundary line and the lower boundary line of the boundary contact surface facing to the longitudinal section away from the center direction of the piston are both curves which can be fitted as functions, the curve shapes of the upper boundary line and the lower boundary line are the same, the curve shapes of the upper boundary line and the lower boundary line are configured to meet specific conditions, then the upper boundary line and the lower boundary line are configured as standard boundary lines to be manufactured to the boundary contact surface of the lower interface of the piston and the bottom interface of the groove to form a standard curved surface, more particularly, the conditions are changed to ensure that the curve shape of the upper boundary line and the curve shape of the bottom interface of the groove are manufactured by the upper boundary line and the lower boundary line as standard boundary line, and under the condition that the offset on the horizontal plane can be generated in the vertical contact process of the boundary contact surface, The curved configuration of the lower boundary is configured as a standard boundary to be made to the interface contact surface of the piston lower interface and the groove bottom interface to form a standard curved surface.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view, and in particular a schematic cross-sectional view, of a main embodiment of the present application;
FIG. 2 is a partial structural view of the main embodiment of the present application, and in particular, a structural view of a control piston step groove connection;
FIG. 3 is a schematic structural view of a main embodiment of the present application, and in particular, a schematic structural view of a lower portion of a groove bottom interface;
FIG. 4 is a schematic structural view of the main embodiment of the present application, and more particularly, a schematic structural view of a groove-side interface;
FIG. 5 is a schematic structural view of the main embodiment of the present application, and in particular, a schematic structural view of the lower interface groove bottom interface connection of the piston;
FIG. 6 is a diagram illustrating the operation of dividing a function image, which can be directly fitted with the curve shape of the upper boundary line or the lower boundary line, into several parts on a definition domain;
FIG. 7 is a schematic diagram of the relationship between images in the coordinate systems of f1 (x) and f2 (x);
in the figure, a first valve-through pipe 1, a second valve-through pipe 2, a valve-through control chamber 3, an integrated electric control box 4, a control piston 5, a stepped groove 6, a permanent magnet 7, a spring 8, an electromagnetic coil group 9, an integrated control circuit board 10, a power supply 11, an outer shell 12, a piston lower interface 51, a groove bottom interface 61, a groove side interface 62, a standby solid glue 63, a bottom interface groove 611, a test conductor ring 121, a resistance test circuit box 122, a standby heating wire 123 and a standby heating control circuit box 124.
Detailed Description
As shown in fig. 1 and referring to the details in fig. 2, the main embodiment of the high temperature and high pressure resistant zero leakage solenoid valve of the present application includes a first valve-through pipe 1 and a second valve-through pipe 2, the first valve-through pipe 1 and the second valve-through pipe 2 are communicated or sealed by a valve-through control chamber 3, an outer casing 12 isolated from the interior of the valve-through control chamber 3 is disposed at the periphery of the valve-through control chamber 3, an integrated control box 4 isolated from the interior of the valve-through control chamber 3 is disposed at the upper portion of the valve-through control chamber 3, the inner cavity of the valve-through control chamber 3 is specifically provided with a plurality of layers of stepped grooves 6, and the middle portion of each layer of stepped groove 6 can be communicated up and down, the periphery is communicated up only, each layer of stepped groove 6 is provided with a control piston 5 capable of moving up and down, the piston lower interface 51 of each control piston 5 can completely cover the middle through hole of the stepped groove 6 where it is located, so that the communication between the first valve-through pipe 1 and the second valve-through pipe 2 can be closed when the control piston 5 is tightly attached to the stepped grooves 6, and the bottom of each stepped groove 6 is provided with a groove bottom interface 61; the control pistons 5 of adjacent layers are fixedly connected through springs 8, the control piston 5 at the topmost layer is connected with a valve through the spring 8 and communicated with the inner top wall of the control chamber 3, the inner edge of each control piston 5 is provided with a permanent magnet 7, correspondingly, a plurality of electromagnetic coil groups 9 are arranged in the comprehensive electric control box 4 and positioned on the bottom surface of the boundary of the comprehensive electric control box and the control piston 5, so that each permanent magnet 7 is provided with an electromagnetic coil group 9 capable of acting on electromagnetic force in the vertical direction, the electromagnetic coil groups 9 are electrically connected with a comprehensive control circuit board 10 arranged in the comprehensive electric control box 4 on a circuit, and the comprehensive control circuit board 10 is electrically connected with a power supply 11 arranged in the comprehensive electric control box 4 on the circuit.
In implementation, a control circuit is arranged on the comprehensive control circuit board 10, the control circuit is preferably a single chip microcomputer circuit, the control circuit of the comprehensive control circuit board 10 can control the conduction relationship between the power supply 11 and each electromagnetic coil group 9, the electromagnetic coil group 9 is electrified to generate electromagnetic force in implementation, the direction of the electromagnetic force is controlled to be different or the same as the magnetic force of the upper end of the permanent magnet 7 in the corresponding control piston 5, and then the control piston 5 is tightly attached to the groove bottom interface 61 at the lower part of the control piston or is far away from the groove bottom interface 61 at the lower part of the control piston, so that the communication or the sealing between the first valve through pipe 1 and the second valve through pipe 2 is adjusted, and the control pistons 5 at all layers can be correspondingly adjusted independently or integrally. When the requirement on the sealing performance of the electromagnetic valve is low in the implementation, the adjustment of the control piston 5 on the uppermost layer can be realized only by electrifying the electromagnetic coil group 9 on the most edge, only one layer of control piston 5 needs to be adjusted, when the requirement on the sealing performance of the electromagnetic valve is high in the high-pressure high-temperature environment, the control pistons 5 in multiple layers need to be adjusted, even all the control pistons 5 can be adjusted, the sealing degree of the step control electromagnetic valve can be realized by the mode, and the control electromagnetic valve can also prevent the leakage.
The power supply 11 adopts a circuit that a transformer is connected with an external power supply; in the embodiment, a power supply system using a battery may be used.
The periphery of the first valve-through pipe 1 or the second valve-through pipe 2 is provided with threads for connection.
The control piston 5 or the stepped groove 6 are all five layers. As shown in fig. 3 and 4, a bottom interface groove 611 is formed downwards on the groove bottom interface 61 of the second-layer and third-layer stepped grooves 6 in the order from top to bottom, a test conductor ring 121 is fixed in each bottom interface groove 611, each test conductor ring 121 is electrically connected with a resistance test circuit box 122 fixed in the outer housing 12, as shown in fig. 4, a groove side interface 62 of the topmost stepped groove 6 is provided with a groove outwards and is deep in the shape of the groove, spare solid glue 63 is uniformly filled in the groove, a spare heating wire 123 is arranged at the periphery of the spare solid glue 63 and is positioned in the outer housing 12, the spare heating wire 123 is electrically connected with a spare heating control circuit box 124 fixed in the outer housing 12, a control single chip is arranged on the comprehensive control circuit board 10 and is electrically connected with each resistance test circuit box 122, the control singlechip is also electrically connected with each standby heating control circuit box 124; in the implementation, the bottom interface groove 611 is mainly provided for detecting the leakage condition of the liquid or gas in the solenoid valve pipeline, when the high-temperature and high-pressure environment or the gas-liquid in the pipeline has a high requirement on the sealing property of the solenoid valve, the control pistons 5 of all layers can be controlled in the implementation so that the control piston 5 of each layer is tightly attached to the groove bottom interface 61 at the lower part, but even in this case, the leakage condition can occur, the implementation generally requires that the flow direction of the gas or liquid is controlled to flow from the bottom layer to the upper layer, that is, the pressure of the gas or liquid at the bottom layer is high, the pressure of the upper layer is low, and when the gas or liquid leaks, the gas or liquid inevitably diffuses into the bottom interface groove 611 formed downwards in the groove bottom interface 61 of the stepped groove 6 at the third layer and then diffuses into the bottom interface groove 611 formed downwards in the groove bottom interface 61 of the stepped groove 6 at the second layer, in the process, the resistance characteristics of the test conductor loops 121 arranged in the bottom interface grooves 611 of each layer change due to the diffusion of gas or liquid, and the change is detected by the resistance test circuit box 122, after the resistance test circuit box 122 detects the resistance change, a notification signal is generated to the control single chip, the control single chip can calculate the diffusion speed of the gas or liquid from the interval of receiving the signals of the two resistance test circuit boxes 122, and further can estimate the shortest time that the gas or liquid possibly diffuses into the uppermost step groove 6, the single chip control circuit can also control the standby heating control circuit box 124 and enable the standby heating control circuit box 124 and the standby heating wire 123 to be conducted for heating in the shortest time, and also can control the heating power of the standby heating wire 123 to enable the standby solid glue 63 to be melted in the shortest time, and the molten standby solid glue 63 will flow downwards and fill all gaps where the stepped groove 6 contacts the lower piston interface 51 of the control piston 5, and can solidify relatively quickly to form a completely closed state where the first valve-through pipe 1 is communicated with the second valve-through pipe 2, so that the solenoid valve has zero leakage under special requirements.
The vertical cross section of the standby heating electric wire 123 is in an inverted L shape, and one vertical side of the standby heating electric wire 123 is obliquely arranged, so that the standby solid glue 63 is uniformly coated by the standby heating electric wire 123, and when the standby heating electric wire 123 is heated, the standby solid glue 63 can be uniformly melted into a liquid state and flows downwards to be cured again.
The material of the prepared solid glue 63 is specifically prepared by mixing epoxy resin, Wake fumed silica powder and vinyl triethoxysilane, and an antioxidant and a curing agent are added in the preparation process, so that the solid glue has the characteristics of easiness in melting by heating and easiness in curing after melting.
The interface contact surface between the piston lower interface 51 and the groove bottom interface 61 is a curved surface.
In implementation, as shown in fig. 5, the interface contact surface between the piston lower interface 51 and the groove bottom interface 61 is a curved surface, and specifically, the upper and lower boundary lines of the interface contact surface facing the longitudinal section away from the center of the piston are both curves that can be fitted as functions, and the curve shapes of the upper and lower boundary lines are the same; the curved shape of the upper and lower boundary lines is also required to satisfy the following condition, and then the upper and lower boundary lines are used as standard boundary lines to be configured and manufactured on the boundary contact surface of the lower interface of the piston and the bottom interface of the groove so as to form a standard curved surface: firstly, dividing a function image capable of being directly fitted with the curve shape of an upper boundary line or a lower boundary line into a plurality of parts on a definition domain, as shown in fig. 6, wherein the lengths of the intervals of the definition domain of each function image are equal, fitting each function image into a simulation function image, counting the leakage probability (any) of each simulation function image at different positions (anx) of a curve when each simulation function image is used as the shape of the independent upper boundary line and the independent lower boundary line, establishing the leakage function any = f0n (anx) corresponding to each simulation function by using the leakage probability of different positions as a dependent variable at different positions of the curve, wherein n represents a natural number, calculating the single integral quantity of the corresponding function in the definition domain of each leakage function, and then calculating the product p =of all the integral quantities
×
×
×……×
Until p satisfies the threshold.
And calculating a single integral quantity of a corresponding function in the definition domain of each leakage function, wherein the integral quantity represents the probability of integral leakage when a corresponding simulation function image is taken as an independent upper and lower boundary line shape, the product p of all the integral quantities represents the leakage probability when the function image is fitted with the whole upper and lower boundary line shape and the image is taken as the upper and lower boundary shape, and the smaller the probability is, the smaller the risk of leakage is, so the smaller the risk of leakage of the electromagnetic valve is, so that p is required to meet a threshold value, and p is actually required to be smaller than the threshold value.
The content and meaning of the above embodiments are illustrated by specific embodiments, in the implementation, the upper and lower boundary lines of the boundary contact surface facing the longitudinal section away from the center of the piston are both curves capable of being fitted as functions, and the curve shapes of the upper and lower boundary lines are the same, assuming that the function images capable of being directly fitted by the curve shapes of the upper or lower boundary lines are both sine function images and 20 periods of sine function images, the function images are divided into a plurality of parts on the definition domain, in the implementation, the function images are divided into equal parts according to each period, and the small sine function of each period is actually part of the whole function.
The practical problem is that when the function images to which the curve shapes of the upper boundary line or the lower boundary line can be directly fitted are all sine function images, the probability of leakage is large, more specifically, the function images to which the curve shapes of the upper boundary line or the lower boundary line can be directly fitted are all sine function images, and the probability of leakage of each part of the sine function images is large because the integral leakage is premised that each part has leakage, and the probability of leakage of each part is the product of the probability of leakage of each part when the probability of leakage of each part is known.
More specifically, the problem is that the leakage probability of each part is large, the aforesaid knowledge is divided into equal parts according to each cycle, then the conditions and effects of each cycle are the same, so that only the probability of leakage when the image corresponding to the small sine function of a certain cycle is taken as the shape of the independent upper and lower boundary lines needs to be known, and more specifically, the problem is that the probability of leakage when the image corresponding to the small sine function of a certain cycle is taken as the shape of the independent upper and lower boundary lines is calculated, for a certain small sine function which is also formed by different parts, actually, the leakage probability of different parts (anx) of the curve of a certain small sine function is directly adopted as the shape of the independent upper and lower boundary lines in the implementation can be counted, wherein an represents the division of the certain small sine function from other small sine functions, and if the 5 th small sine function is calibrated, anx is a5x, an is the same in the subsequent application, where x is an argument that generically represents a function:
suppose that 10 different sites are selected in the statistics, anx =2 respectively
/10，2（2
/10），3（2
/10）…，9（2
/10），2
Then, each part can actually count a leakage probability any, so that establishing a leakage function any = f0n (anx) corresponding to each simulation function with different parts of the curve as independent variables and leakage probabilities of different parts as dependent variables is essentially to establish a periodic small function, where f0n is essentially a distribution function of the probabilities of the different parts, f0 is expressed for distinguishing subsequent f1 and the like, n in f0n is as same as the foregoing, and in essence, the abscissa anx of the function represents the different parts, and the ordinate any represents the leakage probabilities of the different parts, obviously approximatelyThe rates are positive, assuming that the statistically displayed probability of leakage for each segment is equally 0.00035, thus in practice any = f0n (anx), i.e. y =0.00035, the domain is defined as (0, 2)
) In this way, for a small sine function, when the small sine function is directly adopted as the shape of the independent upper and lower boundary lines, the leakage probability of each part is 0.00035, and the leakage probability of the whole small sine function when the small sine function is directly adopted as the shape of the independent upper and lower boundary lines is expressed in the implementation, so that the quantity integral of each part is considered, and the quantity integral of each part is assumed to be expressed as 0.00035 (2)
-0）=0.0007
Then the individual integral quantities of the respective functions calculated within the defined domain of each leakage function are in this particular case 0.0007 for each individual integral quantity
Then, the product p = of all the integral quantities is calculated
×
×
×……×
From the foregoing, assuming that the function images to which the curved shapes of the upper or lower boundary lines can be directly fitted are both sine function images and 20-cycle sine function images, which are divided into several parts on the domain of definition, each
All are substantially 0.0007
Therefore, the product p of all the integral quantities is calculated, and the substantial p is equal to 0.0007
The 20 th power of the boundary contact surface is 0.0007, assuming that the threshold value is 20 th power of 0.003, it is obvious that p is smaller than the threshold value, i.e. p meets the requirement, which means that the upper and lower boundary lines of the boundary contact surface facing the longitudinal section away from the center of the piston are both curves which can be fitted as functions, and the curve shapes of the upper and lower boundary lines are the same and are all sine functions, and the leakage probability of the boundary contact surface is 0.0007
The power of 20 (power), that is, the leakage probability of the interfacial contact surface is not greater than 20 (power of 0.003), it is obviously very safe, that is, the upper and lower boundary lines of the interfacial contact surface facing the longitudinal section away from the center of the piston are both curves which can be fitted as functions, and the curve shapes of the upper and lower boundary lines are the same and are satisfied by adopting sine functions, so that in implementation, the upper and lower boundary lines adopting the sine functions as standard boundary line configuration can be manufactured to the interfacial contact surfaces of the lower interface of the piston and the bottom interface of the groove to form a standard curved surface, the leakage summary of the curved surface is not greater than 20 (power of 0.003), and is naturally safe and almost meets the requirement of zero leakage, of course, the above is only an example, and a safer scheme can be adopted in implementation.
In practice, reference may be made to this example for an understanding of the subsequent functions f1 (x) and f2 (x) and related parameters.
The upper and lower boundary lines are used as standard boundary lines to configure and manufacture the boundary contact surface of the lower interface of the piston and the bottom interface of the groove, and the offset on the horizontal plane is often generated in the process of the upper and lower contact of the boundary contact surface, namely the upper and lower surfaces can not be completely matched according to the preset shape.
The function that the curve shape of the upper boundary line can be fitted is f1 (x), the function that the curve shape of the lower boundary line can be fitted is f2 (x), the position offset of the upper boundary line and the lower boundary line when the upper boundary line and the lower boundary line are in contact is obtained through statistics, and the offset is quantized to a coordinate system where f1 (x) and f2 (x) are located and is expressed as deltax, namely, the condition that the upper boundary line and the lower boundary line are in contact and have the position offset is satisfied: f1 (x) = f2 (| x- Δ x |), as shown in fig. 7, and then constructing a parametric function f3 (x) = f1 (x) -f2 (x); calculating an integral q1 of f3 (x) when the offset Δ x approaches 0; or reducing the offset delta x to 0 equidistantly and gradually, calculating the number q2 of solutions of f3 (x) =0 at each new offset after reduction, and counting the total number of all q2 in the process that the offset delta x is reduced to 0 equidistantly and gradually, wherein the curve shape of the upper boundary line and the curve shape of the lower boundary line are configured as standard boundary lines to be manufactured on the boundary contact surface of the lower interface of the piston and the bottom interface of the groove to form a standard curved surface, and q1 is required to be greater than a threshold value, or q3 is greater than the threshold value; in the case where q1 or q3 actually indicates the number of points equivalent to f1 (x) and f2 (x) in the offset change, the larger the number is, the more points of the curved shape of the upper boundary line and the curved shape of the lower boundary line are contacted during the offset change, the tighter the curved shape of the upper boundary line and the curved shape of the lower boundary line are contacted, and the curved shape of the upper boundary line and the curved shape of the lower boundary line are configured to be formed on the boundary contact surface between the lower boundary surface of the piston and the bottom boundary surface of the groove to form a standard curved surface, so that the leakage risk of the solenoid valve is smaller.
The above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. A high temperature and high pressure resistant zero leakage electromagnetic valve is characterized in that: comprises a first valve-through pipe and a second valve-through pipe, wherein the first valve-through pipe and the second valve-through pipe are communicated or closed through a valve-through control chamber, the periphery of the valve control chamber is provided with an outer shell isolated from the interior of the valve control chamber, the upper part of the valve control chamber is provided with a comprehensive electric control box isolated from the interior of the valve control chamber, the inner cavity of the valve control chamber is specifically provided with a plurality of layers of stepped grooves, the middle part of each layer of the stepped groove can be communicated up and down, the periphery of each layer of the stepped groove is communicated upwards only, each layer of the stepped groove is provided with a control piston which can move up and down, the lower interface of the piston of each control piston can completely cover the middle through hole of the stepped groove of the layer in which the control piston is positioned, when the control piston is tightly attached to the stepped grooves, the communication between the first valve-through pipe and the second valve-through pipe can be closed, and the bottom of each stepped groove is provided with a groove bottom interface; through spring fixed connection between the control piston of adjacent layer, the control piston of top layer leads to the control chamber roof through the spring coupling valve, every control piston inside edge all set up the permanent magnet, correspondingly, the bottom surface that just is located its and control piston juncture in the comprehensive electric control box sets up a plurality of solenoid groups to make each permanent magnet all have in vertical direction rather than the solenoid group of can act on the electromagnetic force, solenoid group on the circuit with the comprehensive control circuit board electricity that sets up in the comprehensive electric control box be connected, the comprehensive control circuit board on the circuit with the power electricity that sets up in the comprehensive electric control box be connected.
2. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 1, wherein: the power supply adopts a circuit that a transformer is connected with an external power supply.
3. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 1, wherein: the periphery of the first valve-through pipe or the second valve-through pipe is provided with threads convenient for connection.
4. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 1, wherein: the control piston or the stepped groove is five layers.
5. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 4, wherein: the bottom interfaces of the second layer of stepped grooves and the third layer of stepped grooves in the sequence from the top to the lower part are both provided with a bottom interface groove downwards, a test conductor ring is fixed in each bottom interface groove, each test conductor ring is electrically connected with a resistance test circuit box fixed in the outer shell, the groove side interface of the topmost stepped groove is outwards provided with a groove, the shape of the groove is deep at the top and shallow at the bottom, spare solid glue is uniformly filled in the groove, the periphery of the standby solid glue is arranged in the shell body, a standby heating electric wire is arranged in the shell body, the standby heating electric wire is electrically connected with a standby heating control circuit box fixed in the shell body, the comprehensive control circuit board is provided with a control single chip microcomputer, the control single chip microcomputer is electrically connected with each resistance test circuit box, and the control single chip microcomputer is also electrically connected with each standby heating control circuit box.
6. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 5, wherein: the vertical cross section of the standby heating electric wire is in an inverted L shape, and one vertical side of the standby heating electric wire is obliquely arranged, so that the standby heating electric wire is uniformly coated with standby solid glue, and the standby solid glue can be uniformly melted into liquid and flows downwards to be cured again when the standby heating electric wire is heated.
7. A high temperature and pressure resistant zero leakage solenoid valve as claimed in either one of claims 5 or 6, wherein: the solid glue is prepared from the mixed components of epoxy resin, Wake fumed silica powder and vinyl triethoxysilane, and an antioxidant and a curing agent are added in the preparation process, so that the solid glue has the characteristics of easiness in melting by heating and easiness in curing after melting.
8. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 5, wherein: the interface contact surface between the lower interface of the piston and the bottom interface of the groove is a curved surface.
9. The high temperature and pressure resistant zero leakage solenoid valve as claimed in claim 8, wherein: the upper and lower boundary lines of the longitudinal section of the boundary contact surface facing away from the center of the piston are all curves which can be fitted into functions, and the curve shapes of the upper and lower boundary lines are the same; the curved shape of the upper and lower boundary lines is also required to satisfy the following condition, and then the upper and lower boundary lines are used as standard boundary lines to be configured and manufactured on the boundary contact surface of the lower interface of the piston and the bottom interface of the groove so as to form a standard curved surface:
dividing a function image which can be directly fitted with the curve shape of an upper boundary line or a lower boundary line into a plurality of parts on a definition domain, wherein the interval lengths of the definition domains of the function images are equal, fitting the function images into a simulation function image, counting the leakage probability any of different parts anx of a curve when each simulation function image is used as an independent upper boundary line and an independent lower boundary line, establishing the leakage function any = f0n (anx) corresponding to each simulation function by taking the leakage probability of different parts as dependent variables and taking the leakage probability of different parts of the curve as independent upper boundary line and lower boundary line, wherein n represents a natural number, calculating a single integral quantity of the corresponding function in the definition domain of each leakage function, and then calculating the product p =of all the integral quantities
×
×
×……×
Until p satisfies the threshold.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191118464A (en) * | 1911-08-15 | 1912-08-15 | Herbert Alfred Humphrey | Improvements in Operating Gear for Internal Combustion Pumps and Compressors. |
| CH381728A (en) * | 1959-12-05 | 1964-09-15 | Knorr Bremse Gmbh | Valve device for generating linear pressure drops |
| JP2002122264A (en) * | 2000-10-12 | 2002-04-26 | Toyota Motor Corp | Electromagnetically driven valve |
| CN2700650Y (en) * | 2004-05-13 | 2005-05-18 | 程安源 | electrical controlled valve |
| CN101509165A (en) * | 2009-03-26 | 2009-08-19 | 浙江新辉纺织机械有限公司 | Electronic needle selection mechanism for jacquard machine |
| CN101761667A (en) * | 2008-12-26 | 2010-06-30 | 浙江三花制冷集团有限公司 | Bistable electromagnetic valve |
| CN202991023U (en) * | 2012-10-27 | 2013-06-12 | 中国石油化工股份有限公司 | Downhole drilling fluid extraction device |
| CN103727262A (en) * | 2012-10-13 | 2014-04-16 | 四川欧润特软件科技有限公司 | Novel gas path mechanical valve |
| CN107191657A (en) * | 2016-03-15 | 2017-09-22 | 盾安美斯泰克股份有限公司 | Magnetic valve based on MEMS |
| CN208090041U (en) * | 2018-01-09 | 2018-11-13 | 昆明理工大学 | A kind of novel electromechanical solenoid valve |
-
2020
- 2020-09-30 CN CN202011065030.2A patent/CN112178214B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191118464A (en) * | 1911-08-15 | 1912-08-15 | Herbert Alfred Humphrey | Improvements in Operating Gear for Internal Combustion Pumps and Compressors. |
| CH381728A (en) * | 1959-12-05 | 1964-09-15 | Knorr Bremse Gmbh | Valve device for generating linear pressure drops |
| JP2002122264A (en) * | 2000-10-12 | 2002-04-26 | Toyota Motor Corp | Electromagnetically driven valve |
| CN2700650Y (en) * | 2004-05-13 | 2005-05-18 | 程安源 | electrical controlled valve |
| CN101761667A (en) * | 2008-12-26 | 2010-06-30 | 浙江三花制冷集团有限公司 | Bistable electromagnetic valve |
| CN101509165A (en) * | 2009-03-26 | 2009-08-19 | 浙江新辉纺织机械有限公司 | Electronic needle selection mechanism for jacquard machine |
| CN103727262A (en) * | 2012-10-13 | 2014-04-16 | 四川欧润特软件科技有限公司 | Novel gas path mechanical valve |
| CN202991023U (en) * | 2012-10-27 | 2013-06-12 | 中国石油化工股份有限公司 | Downhole drilling fluid extraction device |
| CN107191657A (en) * | 2016-03-15 | 2017-09-22 | 盾安美斯泰克股份有限公司 | Magnetic valve based on MEMS |
| CN208090041U (en) * | 2018-01-09 | 2018-11-13 | 昆明理工大学 | A kind of novel electromechanical solenoid valve |
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