CN212455715U - High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell - Google Patents
High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell Download PDFInfo
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- CN212455715U CN212455715U CN202020916636.1U CN202020916636U CN212455715U CN 212455715 U CN212455715 U CN 212455715U CN 202020916636 U CN202020916636 U CN 202020916636U CN 212455715 U CN212455715 U CN 212455715U
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Abstract
The utility model discloses a be used for large-traffic pilot operated solenoid valve of high pressure for hydrogen fuel cell, the large-traffic pilot operated solenoid valve of high pressure includes the main valve disk seat, the main valve body, the main valve case, the main valve spring, the pilot valve barrel, armature, the coil, the pilot valve spring, the pilot valve uide bushing, the pilot valve end cover, the pilot valve shell, the welding end cap, wire and O shape circle. The pilot flow channel designed on the main valve body and the main valve seat is convenient to process, and finally, the leakage of the pilot cavity is ensured by a welding joint, so that the structure is compact and reliable; the armature is provided with the pressure relief hole, so that the sealing of the armature at the position of the pilot valve seat is ensured, the phenomenon of vibration caused by the impact of the back pressure of the main valve cavity or the pilot flow channel outlet on the armature is avoided, and the working is reliable; compared with a diaphragm type pilot electromagnetic valve, the high-pressure large-flow pilot electromagnetic valve is sealed by a piston type valve core and valve seat, and has the advantages of few parts, simple flow channel, small flow resistance, long service life and convenience in assembly.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a be used for large-traffic guide's formula solenoid valve of high pressure for hydrogen fuel cell.
Background
With the increasing shortage of energy in the world, the use of hydrogen energy has received wide attention. At present, power sources of unmanned aerial vehicles, mobile power supplies, military individual soldier equipment and the like generally use hydrogen fuel cells, and the hydrogen fuel cells are generally small in size, but have high requirements on working pressure and simultaneously need to be capable of controlling large flow on-off.
Therefore, the high-pressure large-flow pilot-operated electromagnetic valve for the hydrogen fuel cell is provided, the working principle of the pilot-operated electromagnetic valve is particularly suitable for the requirements of a hydrogen fuel cell system on high-pressure and large-flow on-off control, the pilot valve seat has small drift diameter, so that even if the working pressure is high, the pilot valve can be designed to be small, and meanwhile, the drift diameter of the main valve can be designed to be large, so that the large-flow requirement is ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-traffic guide's formula solenoid valve of high pressure for hydrogen fuel cell to overcome the installation degree of difficulty and the maintenance degree of difficulty of equipment in construction and production process, reduce investment cost and manufacturing cost, thereby effectual improvement industrial production rate and the stability of product quality, in order to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell comprises a main valve seat, a main valve body, a main valve core, a main valve spring, a pilot valve sleeve, an armature, a coil, a pilot valve spring, a pilot valve guide sleeve, a pilot valve end cover, a pilot valve shell, a welding plug, a lead and an O-shaped ring.
Preferably, the main valve body and the main valve seat are provided with a pilot flow channel for convenient processing, and the welding plugs ensure the leakage of the pilot cavity.
Preferably, the armature is provided with a pressure relief hole.
The valve has the advantages that the pressure relief hole is formed in the armature, sealing of the armature at the position of the pilot valve seat is guaranteed, the armature is prevented from being impacted by back pressure of the main valve cavity or the pilot flow channel, the armature is prevented from vibrating, and the valve is reliable in operation.
Preferably, the main valve seat and the main valve core are piston type seals.
The advantages are that, for the diaphragm type pilot electromagnetic valve, the piston type valve core and the valve seat are adopted for sealing, the number of parts is small, the flow channel is simple, the flow resistance is small, the service life is long, and the assembly is convenient.
Preferably, the main valve has a diameter substantially larger than a diameter of the pilot valve seat.
The pilot valve has the advantages that the drift diameter of the pilot valve seat is small, so that the pilot valve can be designed to be small even if the working pressure is high, and meanwhile, the drift diameter of the main valve can be designed to be large, so that the requirement of large flow is met.
Preferably, the pilot-operated solenoid valve for high pressure and large flow rate for hydrogen fuel cell further comprises a pilot hole and a balance hole, the pilot hole is located in a communication channel between the main valve cavity and the pilot valve cavity, and the balance hole is located in a communication channel between the main valve cavity and the inlet on the main valve core.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the pilot flow channel designed on the main valve body and the main valve seat is convenient to process, and finally, the leakage of the pilot cavity is ensured by a welding joint, so that the structure is compact and reliable;
2. the armature is provided with the pressure relief hole, so that the sealing of the armature at the position of the pilot valve seat is ensured, the phenomenon of vibration caused by the impact of the back pressure of the main valve cavity or the pilot flow channel outlet on the armature is avoided, and the working is reliable;
3. compared with a diaphragm type pilot electromagnetic valve, the design adopts the piston type valve core and valve seat for sealing, and has the advantages of few parts, simple flow channel, small flow resistance, long service life and convenient assembly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
in the figure, 1, a main valve seat, 2, a main valve body, 3, a main valve core, 4, a main valve spring, 5, a pilot valve sleeve, 6, an armature, 7, a coil, 8, a pilot valve spring, 9, a pilot valve guide sleeve, 10, a pilot valve end cover, 11, a pilot valve shell, 12, a welding plug, 13, a screw, 14, a lead, 15, an O-shaped ring, 16, a pilot flow channel, 17, a pressure relief hole, 18, a pilot hole and 19, a balance hole are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the structure of the high-pressure large-flow pilot-operated electromagnetic valve for the hydrogen fuel cell comprises a main valve seat 1, a main valve body 2, a main valve spool 3, a main valve spring 4, a pilot valve sleeve 5, an armature 6, a coil 7, a pilot valve spring 8, a pilot valve guide sleeve 9, a pilot valve end cover 10, a pilot valve shell 11, a welding plug 12, a screw 13, a lead wire 14, an O-shaped ring 15, a pilot flow channel 16, a pressure relief hole 17, a pilot hole 18 and a balance hole 19.
When the system does not send a power transmission command to the solenoid valve, the main valve spool 3 keeps closed and sealed in the forward and reverse directions under the main valve spring 4 and the inlet pressure (medium entering from the balance hole 19) above the main valve cavity; when the system sends a power transmission instruction to the electromagnetic valve, the coil 7 of the electromagnetic valve is connected with a power supply, the electromagnetic coil generates electromagnetic force, the armature 6 compresses the pilot valve spring 4 and closes the pilot valve end cover 10, meanwhile, the sealing rubber block at the lower part of the armature 6 leaves the pilot valve seat opening, and the pilot valve is opened. At this time, the working medium above the main valve cavity rapidly enters the pilot valve cavity through the pilot hole 18 and is discharged to the main valve outlet through the pilot flow channel 16, and the medium entering the main valve cavity from the balance hole 19 is not discharged much, so the main valve core 3 is floated by the system medium pressure difference under the action of the medium pressure difference, and the system medium starts to pass through the main valve seat 1 in a large amount, thereby realizing the valve opening function of the main valve; when the system sends a power-off instruction to the electromagnetic valve, the pilot valve seat is closed first, the working medium still continues to enter the upper part of the main valve cavity through the balance hole, and the main valve core 3 starts to close the main valve seat when the sum of the pressure above the main valve core 3 and the elasticity of the main valve spring 4 is larger than the pressure below the main valve core 3, so that the valve closing function of the main valve is realized.
The operating principle of the pilot electromagnetic valve is particularly suitable for the requirements of the hydrogen fuel cell system on high-pressure and large-flow on-off control: because the drift diameter of the pilot valve seat is smaller, even if the working pressure is high, the pilot valve can be designed to be smaller, and meanwhile, the drift diameter of the main valve can be designed to be larger, so that the requirement of large flow is met.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The high-pressure large-flow pilot-operated solenoid valve for the hydrogen fuel cell is characterized by comprising a main valve seat (1), a main valve body (2), a main valve spool (3), a main valve spring (4), a pilot valve sleeve (5), an armature (6), a coil (7), a pilot valve spring (8), a pilot valve guide sleeve (9), a pilot valve end cover (10), a pilot valve shell (11), a welding plug (12), a screw (13), a lead (14) and an O-shaped ring (15).
2. A high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell according to claim 1, characterized in that: a pilot runner (16) is designed on the main valve body (2) and the main valve seat (1) to facilitate processing, and the leakage of a pilot cavity is ensured by a welding plug (12).
3. A high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell according to claim 2, characterized in that: and a pressure relief hole (17) is designed on the armature iron (6).
4. A high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell according to claim 3, characterized in that: the main valve seat (1) and the main valve core (3) are sealed by piston type.
5. A high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell according to claim 4, characterized in that: the drift diameter of the main valve is larger than that of the pilot valve.
6. A high-pressure large-flow pilot-operated electromagnetic valve for a hydrogen fuel cell according to claim 3, characterized in that: the high-pressure large-flow pilot-operated electromagnetic valve for the hydrogen fuel cell further comprises a pilot hole (18) and a balance hole (19), wherein the pilot hole (18) is located in a communication channel between the main valve cavity and the pilot valve cavity, and the balance hole (19) is located in a communication channel between the main valve cavity and an inlet on the main valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916636.1U CN212455715U (en) | 2020-05-27 | 2020-05-27 | High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020916636.1U CN212455715U (en) | 2020-05-27 | 2020-05-27 | High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell |
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| CN212455715U true CN212455715U (en) | 2021-02-02 |
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| CN202020916636.1U Active CN212455715U (en) | 2020-05-27 | 2020-05-27 | High-pressure large-flow pilot-operated electromagnetic valve for hydrogen fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234039A (en) * | 2021-12-01 | 2022-03-25 | 武汉格罗夫氢能汽车有限公司 | Pilot-operated high-temperature pressure release valve and gas cylinder of hydrogen fuel cell automobile |
-
2020
- 2020-05-27 CN CN202020916636.1U patent/CN212455715U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234039A (en) * | 2021-12-01 | 2022-03-25 | 武汉格罗夫氢能汽车有限公司 | Pilot-operated high-temperature pressure release valve and gas cylinder of hydrogen fuel cell automobile |
| CN114234039B (en) * | 2021-12-01 | 2023-03-03 | 武汉格罗夫氢能汽车有限公司 | Pilot-operated high-temperature pressure release valve and gas cylinder of hydrogen fuel cell automobile |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210513 Address after: 046000 intersection of Changling line and Nanhuan West Street, Shangdang District, Changzhi City, Shanxi Province Patentee after: Shanxi Xingbao Technology Co.,Ltd. Address before: 1533, 15th floor, building 6, 6, 8, 10, 12, 16, 18 xuanwumenwai street, Xicheng District, Beijing 100053 Patentee before: Xingbao (Beijing) hydrogen energy technology Co.,Ltd. |
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| TR01 | Transfer of patent right |