CN211202960U - Nuclear-grade small direct-acting three-way electromagnetic valve - Google Patents
Nuclear-grade small direct-acting three-way electromagnetic valve Download PDFInfo
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- CN211202960U CN211202960U CN201922226645.8U CN201922226645U CN211202960U CN 211202960 U CN211202960 U CN 211202960U CN 201922226645 U CN201922226645 U CN 201922226645U CN 211202960 U CN211202960 U CN 211202960U
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Abstract
The application relates to the technical field of electromagnetic valves, in particular to a nuclear-grade small direct-acting three-way electromagnetic valve. The nuclear-grade small direct-acting three-way electromagnetic valve comprises a valve body, an electromagnetic head and a valve rod assembly; a movable cavity is formed in the electromagnetic head, and the valve rod assembly can move in the movable cavity; a first flow passage is formed on the valve body, a second flow passage is formed on the electromagnetic head, and the first flow passage and the second flow passage are respectively communicated with the movable cavity; one end of the valve rod assembly corresponds to the communication position of the first flow passage and the movable cavity, the other end of the valve rod assembly corresponds to the communication position of the second flow passage and the movable cavity, and the communication position of the first flow passage and the movable cavity and the communication position of the second flow passage and the movable cavity can be alternatively sealed in the moving process of the valve rod assembly. The nuclear-grade small direct-acting three-way electromagnetic valve simplifies the valve body structure and greatly reduces the volume and weight of the electromagnetic valve.
Description
Technical Field
The utility model belongs to the technical field of the solenoid valve technique and specifically relates to a small-size direct action formula three solenoid valve of nuclear level is related to.
Background
In the prior art, a medium flow passage of the solenoid valve is generally arranged on a valve body, so that the solenoid valve with a plurality of medium flow passages is generally large in size and weight.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a nuclear-grade small direct-acting three-way electromagnetic valve to solve the technical problems that the volume and the weight of an electromagnetic valve with a plurality of medium flow channels are large in the prior art to a certain extent.
The application provides a nuclear-grade small direct-acting three-way electromagnetic valve which comprises a valve body, an electromagnetic head and a valve rod assembly;
a movable cavity is formed in the electromagnetic head, and the valve rod assembly can move in the movable cavity; a first flow passage is formed on the valve body, a second flow passage is formed on the electromagnetic head, and the first flow passage and the second flow passage are respectively communicated with the movable cavity; and the communication part of the first flow passage and the movable cavity and the communication part of the second flow passage and the movable cavity can be alternatively sealed in the moving process of the valve rod assembly.
In the above technical solution, preferably, a third flow passage communicated with the movable chamber is further formed on the valve body, and a flow passage opening of the third flow passage and the first flow passage and a flow passage opening of the third flow passage are correspondingly located on two sides of the valve body.
In any one of the above technical solutions, preferably, the nuclear-grade small direct-acting three-way solenoid valve further includes an adaptor, where the adaptor is located between the valve body and the electromagnetic head, and is used to connect the valve body and the electromagnetic head; and a first passage for communicating the first flow passage with the movable cavity and a second passage for communicating the third flow passage with the movable cavity are formed on the adapter.
In any one of the above technical solutions, preferably, the nuclear-grade small-sized direct-acting three-way solenoid valve further includes a pipe assembly, one end of the pipe assembly is in threaded connection with the adaptor, the other end of the pipe assembly penetrates through the electromagnetic head and is connected with the electromagnetic head through a cap nut, and the movable cavity is formed inside the pipe assembly.
In any one of the above technical solutions, preferably, a flow passage hole is formed in the cap nut, and the flow passage hole communicates with the second flow passage.
In any of the above technical solutions, preferably, the valve rod assembly includes a valve rod, a moving iron core set and a force application member;
the movable iron core group surrounds the valve rod, and the force application component is connected with the movable iron core group and applies the force to the movable iron core group and the valve rod to plug the valve rod at the communication position of the first flow channel and the movable cavity.
In any of the above technical solutions, preferably, two ends of the valve rod are respectively provided with a blocking portion for blocking a communication position of the first flow passage and the movable cavity and a communication position of the second flow passage and the movable cavity.
In any one of the above technical solutions, preferably, a buffer member is disposed between the valve rod and the blocking portion, and the buffer member can elastically deform along a movement direction of the valve rod.
In any of the above technical solutions, preferably, the adaptor is further provided with a manual device, one end of the manual device is of a diameter-variable structure and abuts against the valve rod assembly; the manual device can rotate, and the valve rod assembly can be pushed to move in the movable cavity in the rotating process.
In any of the above technical solutions, preferably, the valve body is made of an irradiation-resistant material.
Compared with the prior art, the beneficial effects of the utility model are that:
the nuclear-grade small direct-acting three-way solenoid valve has the advantages that the position of the medium flow channel on the solenoid valve is improved, the flow channel is formed on the valve body, the flow channel is also formed on the electromagnetic head, the medium channels communicated alternately are formed under the reciprocating action of the valve rod assembly, the valve body structure is simplified, and the size and the weight of the solenoid valve are greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of an internal structure of a nuclear-grade small direct-acting three-way solenoid valve provided in an embodiment of the present invention in one direction;
fig. 2 is a cross-sectional view of the internal structure of the nuclear-grade small direct-acting three-way solenoid valve provided in the embodiment of the present invention in another direction;
fig. 3 is a schematic diagram of the channel opening communication of the nuclear-grade small direct-acting three-way solenoid valve provided in the embodiment of the present invention.
Reference numerals:
1-valve body, 101-first flow channel, 102-A port, 103-third flow channel, 104-P port, 2-electromagnetic head, 201-second flow channel, 3-valve rod component, 301-valve rod, 302-movable iron core component, 303-force application component, 304-blocking part, 305-buffering component, 4-adapter component, 401-first passage, 402-second passage, 5-pipe component, 501-inner pipe part, 502-outer pipe part, 6-cap nut, 601-O port, 7-sealing component, 8-manual device and 801-reducer end.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A nuclear grade small direct acting three-way solenoid valve according to some embodiments of the present invention is described below with reference to fig. 1 and 3.
Referring to fig. 1 and 2, an embodiment of the present application provides a nuclear-grade small direct-acting three-way solenoid valve, which includes a valve body 1, an electromagnetic head 2 and a valve rod assembly 3;
the interior movable chamber that forms of electromagnetic head 2, valve rod assembly 3 are located movable intracavity, and can follow first direction motion at movable intracavity under electromagnetic head 2 interior coil pack's effect, therefore valve rod assembly 3 can be reciprocating motion at movable intracavity, and preferably, first direction is vertical direction. The position of medium runner on the solenoid valve has been improved to this application, is formed with the runner on valve body 1, also is formed with the runner on electromagnetic head 2 to form the medium passageway of alternative intercommunication under the reciprocal effect of valve rod component 3, take this application embodiment as two-position three way type solenoid valve as the example below, explain the structure and the theory of action of the solenoid valve of this application.
In the embodiment of the present application, the valve body 1 is formed with the first flow passage 101 and the third flow passage 103, and preferably, the flow passage mouths of the first flow passage 101 and the third flow passage 103 face to both sides of the valve body 1. The electromagnetic head 2 is formed with a second flow channel 201, and preferably, the second flow channel 201 is disposed above the movable cavity, and a flow channel opening direction of the second flow channel is upward. The first flow channel 101, the third flow channel 103 and the second flow channel 201 are respectively communicated with the movable cavity, and three flow channels can be alternately communicated to form two medium flow channels in the reciprocating motion process of the valve rod assembly 3. Specifically, one end of the valve rod assembly 3 corresponds to a communication position of the first flow channel 101 and the movable cavity, the other end of the valve rod assembly 3 corresponds to a communication position of the second flow channel 201 and the movable cavity, and in the process that the valve rod assembly 3 moves along the first direction, the end part of the valve rod assembly 3 can alternately block the communication position of the first flow channel 101 and the movable cavity and the communication position of the second flow channel 201 and the movable cavity, so that when the communication position of the first flow channel 101 and the movable cavity is blocked, the third flow channel 103 can be communicated with the third flow channel through the movable cavity to form a first medium flow channel; when the communication position of the second flow channel 201 and the movable cavity is blocked, the third flow channel 103 can be communicated with the first channel through the movable cavity to form a second medium flow channel, so that the two medium flow channels can be alternately communicated to be used as a two-position three-way electromagnetic valve.
It should be noted that, according to the application requirements, the present application can also change the positions and the number of the flow passages on the valve body 1 and the electromagnetic head 2.
The embodiment of the application improves the position of a medium flow channel on the electromagnetic valve, the flow channel is formed on the valve body 1, and the flow channel is formed on the electromagnetic head 2, so that the size and the weight of the electromagnetic valve are greatly reduced, and the electromagnetic valve with the miniaturized requirement is met.
In the embodiment of the present application, preferably, referring to fig. 1 and 2, the solenoid valve further includes an adaptor 4, where the adaptor 4 is located between the valve body 1 and the magnet head 2, and is used for connecting the valve body 1 and the magnet head 2; preferably, the adapter 4 is connected to the valve body 1 and to the housing of the magnet head 2 by means of screws. A first passage 401 for communicating the first flow channel 101 with the movable chamber and a second passage 402 for communicating the third flow channel 103 with the movable chamber are formed on the adaptor 4, and in order to ensure the sealing performance at the communication position of the first passage 401 and the first flow channel 101 and at the communication position of the second passage 402 and the third flow channel 103, a sealing member 7 is arranged on the contact surface of the adaptor 4 and the valve body 1 and around the communication position, so as to prevent the medium from leaking in the working process.
In addition, referring to fig. 1 and 2, the solenoid valve of the embodiment of the present application further includes a pipe assembly 5, one end of the pipe assembly 5 is in threaded connection with the adaptor 4, the other end of the pipe assembly 5 passes through the magnet head 2 and is connected with the magnet head 2 through a cap nut 6, and a movable cavity is formed inside the pipe assembly 5.
Preferably, referring to fig. 1 and 2, the pipe assembly 5 comprises an inner pipe portion 501 and an outer pipe portion 502, the outer pipe portion 502 is located between the adaptor 4 and the electromagnet head 2, and one end of the outer pipe portion 502 is screwed with the adaptor 4 and the other end is connected with the housing of the electromagnet head 2; the inner pipe portion 501 is located inside the electromagnetic head 2 and the outside, one end of which is connected with the housing of the electromagnetic head 2 through the cap nut 6, the other end of which is connected with the outer pipe portion 502, and the inside of the inner pipe portion 501 forms a movable cavity for providing a movement space of the valve rod assembly 3. The setting of pipe assembly 5 makes the structure of the solenoid valve of this application embodiment more stable to satisfy the requirement of explosion-proof performance.
Preferably, the junction of the adaptor 4 and the outer tube portion 502 is also provided with a seal 7.
Further, as shown in fig. 1 and 2, a passage hole is formed in the cap nut 6, and the passage hole communicates with the second passage 201, so that the medium in the second passage 201 can be discharged through the passage hole in the cap nut 6.
In the embodiment of the present application, preferably, referring to fig. 1 and 2, the valve rod assembly 3 includes a valve rod 301, a moving iron core set 302 and a force application member 303; the movable iron core group 302 is arranged around the valve rod 301, and a coil assembly in the electromagnetic head 2 can generate magnetic adsorption force on the movable iron core group 302 when being electrified, so that the valve rod 301 is driven to move towards the direction far away from the valve body 1, and at the moment, the valve rod 301 can block the communication position of the second flow channel 201 and the movable cavity, so that the first flow channel 101 is communicated with the third flow channel 103; and when the coil assembly is powered off, the valve rod assembly 3 can move to the original position in the direction close to the valve body 1 under the action of self gravity, at the moment, the valve rod 301 blocks the communication position of the first flow passage 101 and the movable cavity, and the second passage is communicated with the third passage.
And one end of the force application member 303 is connected with the movable iron core group 302, the other end is connected with the pipe assembly 5, and the force application member 303 always applies an acting force to the movable iron core group 302 and the valve rod 301 to enable the valve rod 301 to block the communication position of the first flow channel 101 and the movable cavity, so that when the movable iron core group 302 is not under the action of the coil assembly adsorption force, the valve rod 301 always applies a force to the valve rod 301 under the action of the force application member 303 to enable the valve rod 301 to stably block the communication position of the first flow channel 101 and the movable cavity, and when the movable iron core group 302 moves upwards under the action of the coil assembly adsorption force, the tensile force action of the force application member 303 to the movable iron core group. Preferably, the urging member 303 is a conical spring.
In the embodiment of the present application, in order to improve the stability of the two ends of the valve rod 301 for blocking the corresponding media flow channels, blocking portions 304 are preferably respectively disposed at the two ends of the valve rod 301 for blocking the communication between the first flow channel 101 and the movable cavity and the communication between the second flow channel 201 and the movable cavity. Preferably, the size of the blocking portion 304 is larger than the aperture of the communication between the first flow passage 101 and the movable chamber and the aperture of the communication between the second flow passage 201 and the movable chamber. The material of the blocking portion 304 may be rubber.
In the embodiment of the present application, preferably, in order to improve the adaptability of the electromagnetic valve of the present application to the use environment, so that the electromagnetic valve can still be kept stable when a shock occurs, such as an earthquake, and is not easily damaged, in the embodiment of the present application, the buffer member 305 is disposed between the valve rod 301 and the blocking portion 304, and the buffer member 305 can elastically deform along the movement direction of the valve rod 301, so that when an earthquake occurs, the buffer member 305 can absorb part of energy, and the electromagnetic valve can still stably control whether each media flow channel is communicated or not. Preferably, the dampener 305 is a spring.
In addition, in order to satisfy stability and security that this application used under irradiation, L OCA environmental condition, the valve body 1 of the solenoid valve of this application and adaptor 4's material is resistant irradiation material, specifically can be fluororubber, CF8, preferably CF 8.
In the embodiment of the present application, preferably, as shown in fig. 1 and 2, the adaptor 4 is further provided with a manual device 8 for manually adjusting the movement of the valve lever assembly 3. Specifically, one end of the manual device 8 is of a reducing structure and is abutted to the valve rod assembly 3, and the radial direction of the reducing end 801 of the manual device 8 is a first direction; the manual device 8 can rotate, and the rotating shaft of the manual device 8 is perpendicular to the first direction, so that the valve rod assembly 3 can be pushed to move in the first direction in the movable cavity by the size change of the diameter-variable end 801 in the rotating process of the manual device 8, and the manual device 8 can be operated to realize reversing when the flow channel of the electromagnetic valve needs to be manually controlled to change under special conditions.
The working principle of the solenoid valve of the present application will be described in detail with reference to fig. 1 to 3, wherein a port of the first flow channel 101 is a port P104, a port of the third flow channel 103 is a port a 102, and a port of the second flow channel 201 is an port O601. When the coil assembly in the electromagnetic head 2 is powered off, the valve rod assembly 3 resets under the action of the spring, the P port 104 is blocked by the valve rod assembly 3, the P port 104 of the electromagnetic valve is not communicated with the A port 102, the A port 102 is communicated with the O port 601, and the medium of the A port 102 is discharged through the O port 601. When the coil assembly in the electromagnetic head 2 is energized, the movable iron core group 302 moves upwards under the action of electromagnetic force, the lower seal is opened, and simultaneously the O port 601 at the top end of the electromagnetic valve is closed, so that the P port 104 is communicated with the A port 102, and at the moment, the O port 601 is closed.
The electromagnetic valve adopts a direct-acting structure, generates a solenoid force to drive the movable iron core group to move upwards by electrifying the coil assembly, overcomes the spring force, opens the lower sealing surface of the valve rod 301, closes the upper sealing surface at the same time, and completes the expected reversing function of the system.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A nuclear-grade small direct-acting three-way electromagnetic valve is characterized by comprising a valve body, an electromagnetic head and a valve rod assembly;
a movable cavity is formed in the electromagnetic head, and the valve rod assembly can move in the movable cavity; a first flow passage is formed on the valve body, a second flow passage is formed on the electromagnetic head, and the first flow passage and the second flow passage are respectively communicated with the movable cavity; and the communication part of the first flow passage and the movable cavity and the communication part of the second flow passage and the movable cavity can be alternatively sealed in the moving process of the valve rod assembly.
2. The nuclear-grade small direct-acting three-way electromagnetic valve according to claim 1, wherein a third flow passage communicating with the movable chamber is further formed on the valve body, and the third flow passage and the flow passage openings of the first flow passage and the third flow passage are correspondingly located on two sides of the valve body.
3. The nuclear-grade small direct-acting three-way solenoid valve according to claim 2, further comprising an adapter piece positioned between the valve body and the solenoid head for connecting the valve body and the solenoid head; and a first passage for communicating the first flow passage with the movable cavity and a second passage for communicating the third flow passage with the movable cavity are formed on the adapter.
4. The nuclear-grade small direct-acting three-way solenoid valve according to claim 3, further comprising a pipe assembly, wherein one end of the pipe assembly is in threaded connection with the adapter, the other end of the pipe assembly penetrates through the electromagnetic head and is connected with the electromagnetic head through a cap nut, and the movable cavity is formed inside the pipe assembly.
5. The three-way solenoid valve of claim 4, wherein said cap nut has a flow passage hole formed therein, said flow passage hole communicating with said second flow passage.
6. The nuclear-grade small direct-acting three-way electromagnetic valve according to any one of claims 1 to 5, wherein the valve rod assembly comprises a valve rod, a moving iron core group and a force application member;
the movable iron core group surrounds the valve rod, and the force application component is connected with the movable iron core group and applies the force to the movable iron core group and the valve rod to plug the valve rod at the communication position of the first flow channel and the movable cavity.
7. The nuclear-grade small direct-acting three-way electromagnetic valve according to claim 6, wherein two ends of the valve rod are respectively provided with a blocking part for blocking a communication part between the first flow passage and the movable cavity and a communication part between the second flow passage and the movable cavity.
8. The nuclear-grade small direct-acting three-way electromagnetic valve according to claim 7, wherein a buffer member is arranged between the valve rod and the blocking portion, and the buffer member can elastically deform in the movement direction of the valve rod.
9. The nuclear-grade small direct-acting three-way electromagnetic valve according to claim 3, wherein a manual device is further arranged on the adapter, and one end of the manual device is of a reducing structure and is abutted to the valve rod assembly; the manual device can rotate, and the valve rod assembly can be pushed to move in the movable cavity in the rotating process.
10. The nuclear-grade small direct-acting three-way electromagnetic valve according to claim 1, wherein the valve body is made of an irradiation-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226645.8U CN211202960U (en) | 2019-12-12 | 2019-12-12 | Nuclear-grade small direct-acting three-way electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226645.8U CN211202960U (en) | 2019-12-12 | 2019-12-12 | Nuclear-grade small direct-acting three-way electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211202960U true CN211202960U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922226645.8U Active CN211202960U (en) | 2019-12-12 | 2019-12-12 | Nuclear-grade small direct-acting three-way electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211202960U (en) |
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- 2019-12-12 CN CN201922226645.8U patent/CN211202960U/en active Active
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Address after: 114000 Xinglong Office Industrial Park, Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province Patentee after: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 114000 Xinglong Office Industrial Park, Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province Patentee before: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |