CN113217691A - Step-by-step direct-acting type deep low-temperature electromagnetic valve - Google Patents
Step-by-step direct-acting type deep low-temperature electromagnetic valve Download PDFInfo
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- CN113217691A CN113217691A CN202110481656.XA CN202110481656A CN113217691A CN 113217691 A CN113217691 A CN 113217691A CN 202110481656 A CN202110481656 A CN 202110481656A CN 113217691 A CN113217691 A CN 113217691A
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- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000007667 floating Methods 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920002313 fluoropolymer Polymers 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Classifications
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to a step direct-acting type deep low-temperature electromagnetic valve which comprises an electromagnet assembly, a sleeve assembly, a main movable valve, an auxiliary movable valve, a valve body, an armature and a spring retainer ring, wherein the electromagnet assembly and the sleeve assembly are locked through screws; the valve body integrates the main movable valve and the auxiliary movable valve through spring retainer rings, and the auxiliary movable valve is in floating connection with the armature through a hook and combined into a step-by-step direct-acting mode; the valve body is connected with the electromagnet assembly through an outer sleeve nut, and a gasket is selected for static sealing. The invention provides a step-by-step direct-acting electromagnetic valve structure suitable for a deep low-temperature region, and the quick response and zero-pressure-difference opening of a valve can be realized.
Description
Technical Field
The invention relates to a step-by-step direct-acting type deep low-temperature electromagnetic valve, belonging to the technical field of electromagnetic valves.
Background
The valve products of the pressurized conveying system of the carrier rocket generally have the problems of low automation degree, insufficient regulation and control capability and poor modularization, generalization and serialization. In the gas distribution system on the ground and the arrow, such as gas cylinder inflation, accumulator inflation and other technical links, products such as a hand switch are still used, manual operation is needed, safety is poor, efficiency is low, reliability is low, and automation degree is low.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects in the prior art are overcome, the step direct-acting type deep low-temperature electromagnetic valve is provided, and the automation degree of the carrier rocket in the gas cylinder charging and discharging is improved.
The technical scheme of the invention is as follows:
a step direct-acting type deep low-temperature electromagnetic valve, which comprises an electromagnet assembly, a sleeve assembly, a main movable valve, an auxiliary movable valve, a valve body, an armature and a spring retainer ring,
the electromagnet assembly and the sleeve assembly are locked through a screw; the valve body integrates the main movable valve and the auxiliary movable valve through spring retainer rings, and the auxiliary movable valve is in floating connection with the armature through a hook and combined into a step-by-step direct-acting mode; the valve body is connected with the electromagnet assembly through an outer sleeve nut, and a gasket is selected for static sealing;
furthermore, in the power-off state, the auxiliary valve and the main valve are closed and sealed.
Furthermore, when the electromagnet assembly is electrified, a coil in the electromagnet assembly is excited to generate a magnetic field, the armature is under the action of the electromagnetic attraction force of the yoke iron to pull the auxiliary movable valve to be opened, and high-pressure gas in the back pressure cavity of the main movable valve is discharged into an outlet through the pressure relief hole of the main movable valve.
Furthermore, the auxiliary movable valve is in contact with the spring retainer ring, and the main movable valve moves upwards under the combined action of high-pressure pneumatic force and electromagnetic suction force at the upstream of the main movable valve, so that the valve is completely opened.
Further, under the action of zero pressure difference, the main movable valve is opened under the action of electromagnetic attraction.
Further, when the electromagnetic valve is powered off, the armature drives the auxiliary movable valve to close under the action of spring force, the communication between the pressure relief hole of the main valve and the back pressure cavity of the main movable valve is blocked, the back pressure cavity of the main movable valve starts to build pressure until the back pressure cavity is balanced with inlet pressure, and the main movable valve is seated under the action of the spring force to close the seal.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a structural form of a step-by-step direct-acting electromagnetic valve suitable for a deep low-temperature region, which can realize quick response and zero-pressure-difference opening of the valve;
(2) the invention provides a novel conical angle sealing valve seat structure form which can simultaneously meet the sealing specific pressure of a product under high pressure and low pressure in a deep low temperature region;
(3) the main movable valve guide pair, the auxiliary movable valve guide pair and the armature guide pair respectively adopt metal-nonmetal guide matching forms such as a corrugated belt-piston ring, hot pressing, fluoroplastic spraying and the like, viscous abrasion caused by mutual friction of metal-metal traditional guide pairs is avoided, the service life times of guide motion are prolonged, and the guide reliability is improved.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The invention is further illustrated by the following examples.
A step direct-acting type deep low-temperature electromagnetic valve is shown in figure 1 and comprises an electromagnet assembly 1, a sleeve assembly 2, a main movable valve 3, an auxiliary movable valve 4, a valve body, an armature 8 and a spring retainer ring 12,
the electromagnet assembly 1 and the sleeve assembly 2 are locked through a screw 13; the valve body integrates the main movable valve 3 and the auxiliary movable valve 4 through a spring retainer ring 12, and the auxiliary movable valve 4 and the armature 8 are in floating connection through a hook and are combined into a step-by-step direct-acting mode; the valve body is connected with the electromagnet assembly 1 through an outer sleeve nut 7, and a gasket 6 is selected for static sealing;
in the power-off state, the auxiliary movable valve 4 and the main movable valve 3 are closed and sealed. When the electromagnetic valve is electrified, a coil in the electromagnet assembly 1 is excited to generate a magnetic field, the armature 8 is under the action of the electromagnetic attraction of the yoke iron to pull the auxiliary movable valve 4 to be opened, and high-pressure gas in a back pressure cavity of the main movable valve 3 is discharged into an outlet through a pressure relief hole of the main movable valve 3.
The auxiliary valve 4 is contacted with the spring retainer ring 12, and the main valve 3 moves upwards under the combined action of high-pressure pneumatic force and electromagnetic suction force on the upstream of the main valve 3, so that the valve is completely opened. Under the action of zero pressure difference, the main movable valve 3 is opened under the action of electromagnetic attraction.
When the electromagnetic valve is powered off, the armature 8 drives the auxiliary movable valve 4 to close under the action of spring force, the communication between the pressure relief hole of the main valve and the back pressure cavity of the main movable valve 3 is blocked, the back pressure cavity of the main movable valve 3 starts to build pressure until the back pressure cavity is balanced with inlet pressure, and the main movable valve 3 is seated under the action of the spring force to close the seal.
In order to improve the guiding reliability of the electromagnetic valve, the auxiliary movable valve 4 guides hot pressing Fs-3, the main movable valve 3 is provided with a corrugated belt-piston ring which forms metal-nonmetal fit with a guiding pair of the valve body 5, and the armature 8 is externally guided and sprayed with a fluoroplastic coating. In order to improve the sealing reliability, the main movable valve seat provides a novel conical angle sealing valve seat structure form, and the sealing specific pressure of a product under high pressure and low pressure in a deep low temperature region can be simultaneously met.
The modular design is respectively carried out by adopting two modules of the electromagnet assembly and the valve body assembly; the valve body assembly adopts a step-by-step direct-acting structure, and zero-pressure-difference opening can be realized; the main valve core and the auxiliary valve core are integrated, the structure is compact, the main valve is simultaneously acted by pressure difference and electromagnetic suction force in the opening process, the quick response is realized, and meanwhile, the flutter can be effectively inhibited; by adopting a novel conical angle sealing valve seat structure form, the sealing specific pressure of the product in a deep low temperature region under high and low pressures can be simultaneously met, and the sealing reliability is improved; the auxiliary valve core is guided to carry out hot pressing Fs-3, the main valve core is provided with a corrugated belt-piston ring which is matched with the guide pair of the shell body in a metal-nonmetal manner, and the armature is externally guided and sprayed with a fluoroplastic coating, so that the guiding reliability is improved; the electromagnet assembly and the sleeve assembly in the electromagnet module are locked through screws, and the direction of the electric socket can be freely adjusted according to the assembly requirement.
The structure can realize zero-pressure-difference opening and high sealing performance of a cross-temperature area, can effectively prevent the clamping stagnation of excess materials, can replace a manual switch to realize unattended operation on a rocket, and can be widely applied to the design of electromagnetic valves of a pressurized conveying system of a carrier rocket.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (6)
1. A step direct-acting type deep low-temperature electromagnetic valve is characterized by comprising an electromagnet assembly (1), a sleeve assembly (2), a main movable valve (3), an auxiliary movable valve (4), a valve body, an armature (8) and a spring retainer ring (12),
the electromagnet assembly (1) and the sleeve assembly (2) are locked through a screw (13); the valve body integrates the main movable valve (3) and the auxiliary movable valve (4) through a spring retainer ring (12), and the auxiliary movable valve (4) is in floating connection with the armature (8) through a hook and combined into a step-by-step direct-acting form; the valve body is connected with the electromagnet assembly (1) through an outer sleeve nut (7), and a gasket (6) is selected for static sealing.
2. The step-by-step direct-acting type deep low-temperature electromagnetic valve according to claim 1, characterized in that in a power-off state, the auxiliary movable valve (4) and the main movable valve (3) are sealed in a closed mode.
3. The step-by-step direct-acting type deep low-temperature electromagnetic valve according to claim 2, characterized in that when the electromagnetic valve is powered on, a coil in the electromagnet assembly (1) is excited to generate a magnetic field, the armature (8) is under the action of the yoke electromagnetic attraction force to pull the auxiliary valve (4) to open, and high-pressure gas in a back pressure cavity of the main valve (3) is discharged into an outlet through a pressure relief hole of the main valve (3).
4. The step-by-step direct-acting type deep low-temperature electromagnetic valve according to claim 3, characterized in that the auxiliary movable valve (4) is in contact with the spring retainer ring (12), and the main movable valve (3) moves upwards under the combined action of high-pressure pneumatic force and electromagnetic suction force at the upstream of the main movable valve (3), so that the valve is completely opened.
5. The step-by-step direct-acting type deep low-temperature electromagnetic valve according to claim 1, characterized in that the main movable valve (3) is opened under the action of electromagnetic suction force under zero pressure difference.
6. The step-by-step direct-acting type deep low-temperature electromagnetic valve according to claim 1, characterized in that when the electromagnetic valve is powered off, the armature (8) drives the secondary movable valve (4) to close under the action of spring force, the communication between the pressure relief hole of the main valve and the back pressure cavity of the main movable valve (3) is blocked, the back pressure cavity of the main movable valve (3) starts to build pressure until the pressure is balanced with inlet pressure, and the main movable valve (3) is seated under the action of spring force to close the seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481656.XA CN113217691A (en) | 2021-04-30 | 2021-04-30 | Step-by-step direct-acting type deep low-temperature electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481656.XA CN113217691A (en) | 2021-04-30 | 2021-04-30 | Step-by-step direct-acting type deep low-temperature electromagnetic valve |
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| Publication Number | Publication Date |
|---|---|
| CN113217691A true CN113217691A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110481656.XA Pending CN113217691A (en) | 2021-04-30 | 2021-04-30 | Step-by-step direct-acting type deep low-temperature electromagnetic valve |
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| CN (1) | CN113217691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076220A (en) * | 2021-08-31 | 2022-02-22 | 北京宇航系统工程研究所 | Integrated electric control relief valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204083448U (en) * | 2014-09-30 | 2015-01-07 | 宁波星箭航天机械有限公司 | Guide electromagnetic valve |
| CN105387261A (en) * | 2015-12-10 | 2016-03-09 | 西安航天动力研究所 | Step-by-step direct-action electromagnetic operating valve with wide working range |
| US20170114913A1 (en) * | 2015-10-27 | 2017-04-27 | Robertshaw Controls Company | Electromechanical pressure relief valve |
| CN106969175A (en) * | 2017-05-10 | 2017-07-21 | 成都特恩达燃气设备有限公司 | A kind of direct acting guide electromagnetic valve |
| CN206377328U (en) * | 2016-12-30 | 2017-08-04 | 西安航天动力研究所 | A kind of heavy caliber guide discharging type magnetic valve |
-
2021
- 2021-04-30 CN CN202110481656.XA patent/CN113217691A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204083448U (en) * | 2014-09-30 | 2015-01-07 | 宁波星箭航天机械有限公司 | Guide electromagnetic valve |
| US20170114913A1 (en) * | 2015-10-27 | 2017-04-27 | Robertshaw Controls Company | Electromechanical pressure relief valve |
| CN105387261A (en) * | 2015-12-10 | 2016-03-09 | 西安航天动力研究所 | Step-by-step direct-action electromagnetic operating valve with wide working range |
| CN206377328U (en) * | 2016-12-30 | 2017-08-04 | 西安航天动力研究所 | A kind of heavy caliber guide discharging type magnetic valve |
| CN106969175A (en) * | 2017-05-10 | 2017-07-21 | 成都特恩达燃气设备有限公司 | A kind of direct acting guide electromagnetic valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076220A (en) * | 2021-08-31 | 2022-02-22 | 北京宇航系统工程研究所 | Integrated electric control relief valve |
| CN114076220B (en) * | 2021-08-31 | 2023-06-30 | 北京宇航系统工程研究所 | Integrated electric control safety overflow valve |
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Application publication date: 20210806 |