CN216479196U - Quick response's superhigh pressure guide formula solenoid valve structure - Google Patents

Abstract

The utility model discloses a quick-response ultrahigh-pressure pilot-operated electromagnetic valve structure which is divided into an auxiliary sealing structure, a main sealing structure, a guiding structure, an armature limiting structure and a main valve limiting structure from the sealing and functions, wherein the sealing forms of the auxiliary sealing structure and the main sealing structure are plane sealing, conical surface sealing or spherical surface sealing, the guiding structure improves the sealing performance of the auxiliary sealing structure, the armature limiting structure improves the response speed of an auxiliary valve core, the main valve limiting structure improves the stability of a pilot-operated electromagnetic valve, a sealing ring is arranged on the main valve core or on a valve body, and the pressure of a pressure relief cavity is adjusted through an orifice and a pressure relief channel Poor stability.

Description

Quick response's superhigh pressure guide formula solenoid valve structure

Technical Field

The utility model relates to the field of electromagnetic valves, in particular to a quick-response ultrahigh-pressure pilot-operated electromagnetic valve structure.

Background

The application fields of the prior pilot-operated electromagnetic valve comprise the fields of new energy automobiles, clean energy, fuel systems and the like, and the main defects of the prior pilot-operated electromagnetic valve product comprise low response speed, serious abrasion of a sealing element, external communication pipelines on partial products and low pressure-resistant grade.

In the patent of the prior application publication No. CN 110594479A 'a pilot-operated solenoid valve in a bottle mouth valve', a connecting sleeve is connected with a valve body and a fixed iron core, a movable iron core drives the sleeve to move upwards and downwards, and a moving part formed by the moving iron core has larger mass and is easy to generate larger impact on a fixing part to cause abrasion and influence the sealing performance.

The common pilot-operated electromagnetic valve on the market has the defects of complex structure, complex processing technology, high production cost, large volume, multiple leakage points, poor sealing performance and the like. Therefore, it is highly desirable to develop a fast-response ultra-high pressure pilot operated solenoid valve to meet the needs of fuel cell technology development and other industries.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide an ultrahigh pressure pilot-operated solenoid valve structure having a good sealing performance, a high pressure resistance level, and a high response speed.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a quick-response ultrahigh-pressure pilot-operated electromagnetic valve structure comprises a tightening cap, a nut, a magnetism isolating sleeve, a coil, a spring, an auxiliary valve element, a gasket, a sealing ring, a valve body, a main sealing gasket, a main sealing seat, a main valve element, an auxiliary sealing gasket, a nozzle body, a limiting sleeve and an armature, and is divided into an auxiliary sealing structure, a main sealing structure, a guiding structure, an armature limiting structure, a main valve limiting structure, a sealing component and a valve element component from the sealing and the function aspect, wherein an included angle alpha between a contact surface between the tightening cap and the armature and a horizontal plane ranges from-90 degrees to 90 degrees, an inlet is arranged on the valve body, a cavity between the main valve element and the armature is a pressure relief cavity, a throttling hole and a pressure relief channel are arranged on the main valve element, the throttling hole is communicated with the pressure relief channel, the pressure relief channel is communicated with the pressure relief cavity, and the main valve element is provided with an axial auxiliary valve channel, the secondary valve passage communicates with an outlet chamber on the primary seal seat.

Preferably, the auxiliary sealing structure is composed of an auxiliary valve core, a limiting sleeve, an auxiliary sealing gasket and a main valve core, the auxiliary sealing gasket is mounted on the main valve core through the limiting sleeve, and the sealing form between the auxiliary sealing gasket and the auxiliary valve core is plane sealing, conical surface sealing or spherical surface sealing.

Preferably, above-mentioned main seal structure comprises main valve core, valve body, seal assembly by main sealed pad with main seal seat constitutes simultaneously, main sealed pad passes through main seal seat is installed on the valve body, perhaps seal assembly only by main sealed pad constitutes, sealed pad is installed on the valve body, main sealed pad with sealed form between the main valve core is plane seal, perhaps conical surface is sealed, or spherical surface is sealed.

Preferably, the sealing ring is mounted on the main valve element or on the valve body, gap leakage between the valve body and the main valve element is eliminated through the sealing ring, a cavity in the valve body is divided by the sealing ring, the upper end of the sealing ring is communicated with the pressure relief cavity, the lower end of the sealing ring is communicated with the inlet of the valve body, and the inlet is communicated with the pressure relief cavity through the throttling hole and the pressure relief channel.

Preferably, the guide structure is composed of the auxiliary valve core and the limiting sleeve in the auxiliary sealing structure, the auxiliary valve core can move up and down in the limiting sleeve, an inner hole of the limiting sleeve has a guide function, and the sealing performance between the auxiliary valve core and the auxiliary sealing gasket is improved.

Preferably, the armature limiting structure comprises an armature, an auxiliary valve core, a limiting sleeve, a tightening cap, a magnetism isolating sleeve and a nozzle body, wherein the auxiliary valve core penetrates through the armature and moves up and down in the limiting sleeve, the armature moves up and down in inner holes of the magnetism isolating sleeve and the nozzle body, the armature contacts with the tightening cap when moving upwards to the top to form an upper limiting position, and the armature moves downwards to form a lower limiting position when contacting with the limiting sleeve.

Preferably, the main valve limiting structure comprises a gasket, a main valve element, a valve body, a nozzle body, a main sealing gasket and a main sealing seat, wherein the gasket is mounted on the nozzle body by the valve body, the main valve element is mounted in the valve body, and the main sealing gasket is mounted on the valve body by the main sealing seat, so that the main valve element reaches an upper limit when moving upwards and contacts with the gasket, and the main valve element reaches a lower limit when moving downwards and contacts with the main sealing gasket.

Preferably, one deformation structure of the auxiliary sealing structure is composed of an auxiliary valve core, a limiting sleeve, an auxiliary sealing gasket and a main valve core, wherein the auxiliary sealing gasket is installed at the lower end of the auxiliary valve core, the limiting sleeve is installed on the main valve core, the auxiliary valve core drives the auxiliary sealing gasket to move downwards in the limiting sleeve, the auxiliary sealing gasket is in contact with the limiting sleeve to form sealing, and the sealing form is plane sealing, conical surface sealing or spherical surface sealing.

Preferably, a deformation structure of the main sealing structure is composed of a main valve element, a valve body and a main sealing gasket, the main sealing gasket is mounted on the main valve element, the main valve element drives the main sealing gasket to move up and down in the valve body, when the main valve element moves down to the main sealing gasket and the valve body contact, sealing is formed, and the sealing form is plane sealing, or conical surface sealing, or spherical surface sealing.

Preferably, a deformation structure of the above-mentioned guide structure is composed of an auxiliary valve core, an auxiliary sealing gasket, and a valve core assembly, where the valve core assembly is composed of the main valve core and the limiting sleeve together, or is composed of the main valve core only, the auxiliary sealing gasket is installed at the bottom of the auxiliary valve core, the main valve core is provided with 2 holes, one hole is a throttle hole, the other hole is a guide hole, the throttle hole is communicated with the guide hole, the guide hole is overlapped with the axis of the main valve core, a section of the auxiliary valve core extending into the limiting sleeve and the guide hole on the main valve core is subjected to a flat position design, the number of flat positions on the auxiliary valve core is 1 to 8, and a passage formed between the flat position on the auxiliary valve core and the guide hole on the main valve core is a pressure relief passage.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model and to enable other features, objects and advantages of the utility model to be more fully apparent. The drawings and their description illustrate the utility model by way of example and are not intended to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a fast-response EHV pilot-operated solenoid valve according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating the operation of opening the secondary valve core of the ultrahigh-pressure pilot-operated solenoid valve with rapid response according to the embodiment of the utility model;

FIG. 3 is a schematic diagram illustrating the operation of opening the main valve element of the fast-response EHV pilot-operated solenoid valve according to the embodiment of the present invention;

FIG. 4 is a schematic view of a secondary seal structure of a pilot operated solenoid valve in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of the primary seal structure of a pilot operated solenoid valve in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of a pilot operated solenoid valve according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an armature position limiting structure of a pilot operated solenoid valve according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a main valve position-limiting structure of the pilot-operated solenoid valve according to the embodiment of the present invention;

fig. 9 is a schematic diagram of a modified structure of a secondary sealing structure of a pilot-operated solenoid valve according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a main seal structure of a pilot-operated solenoid valve according to an embodiment of the present invention;

FIG. 11 is a schematic view of a seal ring assembly of a pilot operated solenoid valve according to an embodiment of the present invention;

fig. 12 is a schematic view of a guide structure modification 1 of the pilot-operated solenoid valve according to the embodiment of the present invention;

fig. 13 is a schematic view of a guide structure modification 2 of the pilot-operated solenoid valve according to the embodiment of the present invention;

the reference numerals have the meanings given below: 1, tightening a cap; 2, a nut; 3, magnetic isolation sleeve; 4, coils; 5, a spring; 6 auxiliary valve core; 7, a gasket; 8, sealing rings; 9a valve body; 10 primary seal gasket; 11 a main seal seat; 12 an outlet chamber; 13 auxiliary valve passages; 14 orifices; 15 an inlet; 16 main spool; 17 secondary gaskets; 18 a pressure relief cavity; 19 a nozzle body; 20, a limiting sleeve; 21 an armature; 22 pressure relief channel.

Detailed Description

The utility model aims to provide a quick-response ultrahigh-pressure pilot-operated electromagnetic valve structure, which can be used in the field of hydrogen energy and natural gas.

In order to better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments.

It is noted that, as used herein, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", "axial", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "in communication" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

A specific embodiment of the present invention is shown in fig. 1, a fast-response ultrahigh-pressure pilot-operated electromagnetic valve structure, which is composed of a tightening cap 1, a nut 2, a magnetic spacer 3, a coil 4, a spring 5, an auxiliary valve element 6, a gasket 7, a seal ring 8, a valve body 9, a main seal gasket 10, a main seal seat 11, a main valve element 16, an auxiliary seal gasket 17, a nozzle body 19, a limit sleeve 20, and an armature 21, and is divided into an auxiliary seal structure, a main seal structure, a guide structure, an armature limit structure, a main valve limit structure, a seal assembly, and a valve element assembly in terms of sealing and function, an included angle α between a contact surface between the tightening cap 1 and the armature 21 and a horizontal plane is in a range of-90 to 90 °, an inlet 15 is provided on the valve body 9, a cavity between the main valve element 16 and the armature 21 is a pressure relief cavity 18, a throttle hole 14 and a pressure relief channel 22 are provided on the main valve element 16, the throttle hole 14 is communicated with the pressure relief channel 22, the pressure relief channel 22 is communicated with the pressure relief cavity 18, the main valve core 16 is provided with an axial auxiliary valve channel 13, and the auxiliary valve channel 13 is communicated with the outlet cavity 12 on the main sealing seat 11.

Preferably, the secondary sealing structure is composed of a secondary valve core 6, a limiting sleeve 20, a secondary sealing gasket 17 and a primary valve core 16, the secondary sealing gasket 17 is mounted on the primary valve core 16 through the limiting sleeve 20, and the sealing form between the secondary sealing gasket 17 and the secondary valve core 16 is a plane sealing, a conical surface sealing or a spherical surface sealing, as shown in fig. 4.

Preferably, the main sealing structure is composed of a main valve element 16, a valve body 9 and a sealing assembly, the sealing assembly is composed of a main sealing gasket 10 and a main sealing seat 11, the main sealing gasket 10 is installed on the valve body 9 through the main sealing seat 11, or the sealing assembly is only composed of the main sealing gasket 10, the sealing gasket 10 is installed on the valve body 9, and the sealing form between the main sealing gasket and the main valve element is plane sealing, or conical surface sealing, or spherical surface sealing, as shown in fig. 5.

Preferably, the sealing ring 8 is mounted on the main valve element 16 or on the valve body 9, the sealing ring 8 eliminates the gap leakage between the valve body 9 and the main valve element 16, the sealing ring 8 divides the cavity in the valve body 9, the upper end of the sealing ring 8 communicates with the pressure relief chamber 18, the lower end of the sealing ring 8 communicates with the inlet 15 of the valve body 9, and the inlet 15 communicates with the pressure relief chamber 18 through the orifice 14 and the pressure relief passage 22, as shown in fig. 11.

Preferably, the above-mentioned guiding structure is composed of the secondary valve core 6 and the stop collar 20 in the secondary sealing structure, the secondary valve core 6 can move up and down in the stop collar 20, and the inner hole of the stop collar 20 has a guiding function, so as to improve the sealing performance between the secondary valve core 6 and the secondary sealing gasket 17, as shown in fig. 6.

Preferably, the armature limit structure is composed of an armature 21, a secondary valve core 6, a limit sleeve 20, a tightening cap 1, a magnetism isolating sleeve 3 and a nozzle body 19, the secondary valve core 6 passes through the armature 21 to move up and down on the limit sleeve 20, the armature 21 moves up and down on inner holes of the magnetism isolating sleeve 3 and the nozzle body 19, the armature 21 contacts with the tightening cap 1 when moving upwards to the top to form an upper limit, and the armature 212 moves downwards to contact with the limit sleeve 20 to form a lower limit, as shown in fig. 7.

Preferably, the main valve limiting structure is composed of a gasket 7, a main valve element 16, a valve body 9, a nozzle body 19, a main seal gasket 10, and a main seal seat 11, wherein the gasket 7 is mounted on the nozzle body 19 by the valve body 9, the main valve element 16 is mounted in the valve body 9, and the main seal gasket 10 is mounted on the valve body 9 through the main valve seat 11, so that the main valve element 16 reaches an upper limit when moving upward and contacting the gasket 7, and the main valve element 16 reaches a lower limit when moving downward and contacting the main seal gasket 10, as shown in fig. 8.

Preferably, a modified structure of the above-mentioned secondary sealing structure is composed of a secondary valve core 6, a stop collar 20, a secondary sealing gasket 17 and a primary valve core 16, where the secondary sealing gasket 17 is installed at the lower end of the secondary valve core 6, the stop collar 20 is installed on the primary valve core 16, the secondary valve core 6 drives the secondary sealing gasket 17 to move downward in the stop collar 20, and the secondary sealing gasket 17 forms a seal when contacting the stop collar 20, where the seal form is a plane seal, a conical seal, or a spherical seal, as shown in fig. 9.

Preferably, a modified structure of the above-mentioned main sealing structure is composed of a main valve element 16, a valve body 9, and a main sealing gasket 10, where the main sealing gasket 10 is mounted on the main valve element 16, the main valve element 16 drives the main sealing gasket 10 to move up and down in the valve body 9, and when the main valve element 16 moves down until the main sealing gasket 10 contacts with the valve body 9, a seal is formed, and the seal is in the form of a plane seal, a conical seal, or a spherical seal, as shown in fig. 10.

Preferably, a modified structure of the above-mentioned guiding structure is composed of a secondary valve core 6, a secondary sealing gasket 17, and a valve core assembly, where the valve core assembly is composed of the main valve core 16 and the limiting sleeve 20 together, or only the main valve core 16, the secondary sealing gasket 17 is installed at the bottom of the secondary valve core 6, the main valve core 16 has 2 holes, one is a throttle hole 14, and the other is a guiding hole 23, the throttle hole 14 communicates with the guiding hole 23, the guiding hole 23 coincides with the axis of the main valve core 16, a section of the secondary valve core 6 extending into the limiting sleeve 20 and the guiding hole 23 on the main valve core 16 is designed to be flat, the number of the flat positions on the secondary valve core 6 is 1 to 8, a channel formed between the flat position on the secondary valve core 6 and the guiding hole 23 on the main valve core 16 is a pressure relief channel 22, as shown in fig. 12 and 13.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. The utility model is not limited to the technical field of electromagnetic valves, but also comprises other technical fields needing to apply control valve products. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A quick-response ultrahigh-pressure pilot-operated solenoid valve structure is characterized by comprising a tightening cap, a nut, a magnetic isolation sleeve, a coil, a spring, an auxiliary valve element, a gasket, a sealing ring, a valve body, a main sealing gasket, a main sealing seat, a main valve element, an auxiliary sealing gasket, a nozzle body, a limiting sleeve and an armature, wherein the quick-response ultrahigh-pressure pilot-operated solenoid valve structure is divided into an auxiliary sealing structure, a main sealing structure, a guiding structure, an armature limiting structure, a main valve limiting structure, a sealing assembly and a valve element assembly from the sealing and the function aspect, the included angle alpha between the contact surface between the tightening cap and the armature and the horizontal plane is in the range of-90 degrees to 90 degrees, an inlet is arranged on the valve body, a cavity between the main valve element and the armature is a pressure relief cavity, a throttling hole and a pressure relief channel are arranged on the main valve element, the throttling hole is communicated with the pressure relief channel, and the pressure relief channel is communicated with the pressure relief cavity, the main valve core is provided with an axial auxiliary valve passage which is communicated with an outlet cavity on the main sealing seat.

2. The structure of a rapid-response ultrahigh-pressure pilot operated solenoid valve according to claim 1, wherein the secondary sealing structure is composed of a secondary valve core, a limiting sleeve, a secondary sealing gasket and a main valve core, the secondary sealing gasket is mounted on the main valve core through the limiting sleeve, and the sealing form between the secondary sealing gasket and the secondary valve core is a plane sealing, a conical surface sealing or a spherical surface sealing.

3. The structure of a rapid-response uhp pilot operated solenoid valve according to claim 1, wherein the main seal structure is composed of a main spool, a valve body, and a seal assembly, and when the seal assembly is composed of a main seal gasket and a main seal seat at the same time, the main seal gasket is mounted on the valve body via the main seal seat, or when the seal assembly is composed of only the main seal gasket, the seal gasket is mounted on the valve body, and the seal between the main seal gasket and the main spool is a planar seal, a tapered seal, or a spherical seal.

4. The structure of a rapid-response uhp pilot operated solenoid valve as defined in claim 1, wherein said packing is mounted on said main spool or on said valve body, gap leakage between said valve body and said main spool is eliminated by said packing, said packing divides a cavity in said valve body, an upper end of said packing communicates with said pressure relief chamber, a lower end of said packing communicates with said inlet of said valve body, and said inlet communicates with said pressure relief chamber through said orifice and said pressure relief passage.

5. The structure of a rapid-response ultrahigh-pressure pilot operated solenoid valve according to claim 1, wherein the guide structure is composed of the secondary valve element and the stop collar in the secondary seal structure, the secondary valve element is capable of moving up and down in the stop collar, and an inner hole of the stop collar has a guide function, so that the sealing performance between the secondary valve element and the secondary sealing gasket is improved.

6. The structure of a rapid-response ultrahigh-pressure pilot operated solenoid valve according to claim 1, wherein the armature position limiting structure is composed of an armature, a secondary valve core, a position limiting sleeve, a tightening cap, a magnetic isolation sleeve and a nozzle body, the secondary valve core passes through the armature and moves up and down on the position limiting sleeve, the armature moves up and down on inner holes of the magnetic isolation sleeve and the nozzle body, the armature contacts with the tightening cap when moving upwards to the top to form an upper position limiting position, and the armature moves downwards to form a lower position limiting position when contacting with the position limiting sleeve.

7. A rapid response uhp pilot operated solenoid valve structure according to claim 1 wherein said main valve position limiting structure is comprised of a gasket, a main spool, a valve body, a nozzle body, a main seal gasket, a main seal seat, said gasket being mounted on said nozzle body by said valve body, said main spool being mounted in said valve body, said main seal gasket being mounted on said valve body by said main valve seat such that said main spool reaches an upper limit when moving upward in contact with said gasket and said main spool reaches a lower limit when moving downward in contact with said main seal gasket.

8. The structure of a fast-response ultrahigh-pressure pilot operated solenoid valve according to claim 2, wherein a deformation structure of the secondary sealing structure is composed of a secondary valve element, a limiting sleeve, a secondary sealing gasket and a main valve element, the secondary sealing gasket is mounted at the lower end of the secondary valve element, the limiting sleeve is mounted on the main valve element, the secondary valve element drives the secondary sealing gasket to move downwards in the limiting sleeve, and the secondary sealing gasket forms a seal when contacting with the limiting sleeve, wherein the seal is in a plane seal form, a conical seal form or a spherical seal form.

9. A rapid response uhp pilot operated solenoid valve structure according to claim 3 wherein a variation of said primary seal structure is comprised of a primary spool, a valve body, a primary seal mounted on said primary spool, said primary spool moving said primary seal up and down within said valve body to form a seal when said primary spool moves down until said primary seal contacts said valve body, the seal being in the form of a flat seal, a tapered seal, or a spherical seal.

10. The quick-response ultrahigh-pressure pilot-operated solenoid valve structure according to claim 5, it is characterized in that one deformation structure of the guide structure is composed of an auxiliary valve core, an auxiliary sealing gasket and a valve core assembly, the valve core assembly is composed of a main valve core and a limiting sleeve, or only consists of the main valve core, the secondary sealing gasket is arranged at the bottom of the secondary valve core, the main valve core is provided with 2 holes, one hole is an orifice, the other hole is a guide hole, the throttle hole is communicated with the guide hole, the guide hole is superposed with the axis of the main valve core, the section of the auxiliary valve core extending into the limiting sleeve and the guide hole on the main valve core is designed to be flat, the number of the flat positions on the auxiliary valve core is 1-8, and a channel formed between the flat positions on the auxiliary valve core and the guide hole on the main valve core is a pressure relief channel.

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