CN202927174U - Superconducting magnet pressure discharge valve and pressure discharging system - Google Patents
Superconducting magnet pressure discharge valve and pressure discharging system Download PDFInfo
- Publication number
- CN202927174U CN202927174U CN 201220549808 CN201220549808U CN202927174U CN 202927174 U CN202927174 U CN 202927174U CN 201220549808 CN201220549808 CN 201220549808 CN 201220549808 U CN201220549808 U CN 201220549808U CN 202927174 U CN202927174 U CN 202927174U
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- superconducting magnet
- valve
- pressure relief
- relief valve
- dividing plate
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Abstract
The utility model discloses a superconducting magnet pressure discharging valve and a pressure discharging system. The superconducting magnet pressure discharging valve comprises a valve body, wherein an elastic part and a partition plate are arranged in the valve body, the elastic part is provided with a tensioning function, the partition plate is provided with an opening in the middle, and the partition plate divides the valve body into an upper cavity chamber and a lower cavity chamber. An air inlet is arranged on the upper cavity chamber, an air outlet is arranged on the lower cavity chamber, a seal plate is arranged in the lower cavity chamber, and the seal plate and the elastic part are connected, then attached on the partition plate, and fully cover an opening portion of the partition plate. A tension spring is adopted to seal to replace a compression resisting spring, be capable of effectively solving the problem that resilience value of a spring is not enough and seal is not conducted, and solve the problem that the pressure discharging system can not be effectively closed after discharging is completed. In addition, a first stop valve and a bypass loop are increased on the air inlet of the pressure discharging valve, so that the pressure discharging valve randomly goes through low-temperature refrigerant, service life is prolonged, and reliability is improved.
Description
Technical field
The utility model relates to a kind of bleeder valve and bleed-off system, relates in particular to a kind of superconducting magnet Pressure Relief Valve and pressure releasing system.
Background technique
The present existing model utility scheme of pressure-relieving device on superconducting magnet roughly can be divided into two kinds:
A kind of is adopts pressure sensor, and control unit adds the design of Controlled valve, for example solenoid valve or pneumatic valve.This design utilizes pressure transducer to measure the magnet internal pressure, then by control unit, the magnet internal pressure that measures is judged, pressure is controlled solenoid valve or pneumatic valve opens or cuts out according to recording.The characteristics of this scheme are accurately to control the open and close of solenoid valve or pneumatic valve, and control accuracy is high.But in use be subject to environmental constraint, if Controlled valve adopts solenoid valve, need to provide power supply, in the magnet transportation process, just relatively be difficult to the power supply that provides stable; Simultaneously can produce magnetic field when electromagnetic valve work, this can exert an influence to uniformity of magnets magnetic fields.If the employing pneumatic valve needs the high-pressure air source that provides stable, this all relatively is difficult to realize at transportation environment and hospital environment, can significantly increases cost.
Another existing superconducting magnet pressure-relieving device design proposal adopts spring valve exactly, and the perhaps valve with certain flexible structure of spring-like for example adopts the structure of a spring of sylphon seal to replace the scheme of spring.Adopt seal ring or sealing gasket to add that a sealing panel seals, regulate the structure of Compress Spring or spring-like by screw rod, make the sealing panel can press seal circle or sealing gasket.The problem that this scheme exists is if there is a large amount of refrigerants to release out in magnet, can make the temperature of bleeder be reduced near-200 degrees centigrade, after the magnet pressure releasing was completed, spring was because the reason that temperature reduces, decrement can not be recovered fully, causes the bleeder seal failure.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of superconducting magnet Pressure Relief Valve and pressure releasing system, can improve bleeder valve working life and reliability.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to be to provide a kind of superconducting magnet Pressure Relief Valve, comprise valve body, wherein, be provided with the elastic member of band tension function and the dividing plate of a middle opening in described valve body, described dividing plate is divided into upper chamber and lower chambers with valve body, described upper chamber is provided with suction port, described lower chambers is provided with relief opening, described bottom chamber is provided with hush panel, described hush panel be fitted in after elastic member is connected on dividing plate and cover open part on dividing plate fully.
Further, described elastic member is extension spring or bellows.
Further, described elastic member is to be sealed with the bellows of extension spring or the combiner of extension spring and thermosensitive element.
Further, described elastic member is the extension spring that is arranged in upper chamber, and described hush panel is arranged on the below of dividing plate, and an end of described extension spring is connected with hush panel, and the other end is provided with pre-tightening force adjusting device.
Further, be provided with sealed member between described hush panel and dividing plate, described sealed member is seal ring or sealing gasket.
Further, described seal ring is embedded in seal groove, and described seal groove is opened on hush panel or dividing plate.
Further, described upper chamber is provided with a plurality of suction ports, and described lower chambers is provided with a plurality of relief openings.
The utility model also provides a kind of pressure releasing system for solving the problems of the technologies described above, comprise above-mentioned superconducting magnet Pressure Relief Valve, described Pressure Relief Valve is connected with superconducting magnet by refrigerant pipe, wherein, be connected with the first stop valve before described suction port, the two ends of described Pressure Relief Valve and the first stop valve are connected with the bypass circulation of the second stop valve formation and described major loop parallel connection.
The utility model contrast prior art has following beneficial effect: the superconducting magnet Pressure Relief Valve that the utility model provides and pressure releasing system, by adopting the extension spring sealing to replace pressure-proof spring, can effective compensation the recoil of spring quantity not sufficient problem that causes sealing not go up, thereby solve bleeder valve release complete after the effective problem of closure.In addition, the utility model adds the first stop valve and adds a bypass circulation to Pressure Relief Valve by the suction port in Pressure Relief Valve, when magnet need to be released a large amount of refrigerants, the first stop valve on the bleed-off system suction tude is closed, open the second stop valve on bypass circulation, make Pressure Relief Valve experience less the ultralow temperature refrigerant as far as possible, improve working life and reliability.
Description of drawings
Fig. 1 is the utility model superconducting magnet pressure releasing system architecture schematic diagram;
Fig. 2 is the structural representation of the utility model superconducting magnet Pressure Relief Valve;
Fig. 3 is the structural representation that the utlity model has the superconducting magnet Pressure Relief Valve of two suction ports and relief opening;
Fig. 4 is the structural representation that seal groove is set on the hush panel of the utility model superconducting magnet Pressure Relief Valve;
Fig. 5 is the structural representation that seal groove is set on the valve body dividing plate of the utility model superconducting magnet Pressure Relief Valve;
Fig. 6 arranges the structural representation of sealing gasket between the hush panel of the utility model superconducting magnet Pressure Relief Valve and dividing plate.
In figure:
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the utility model superconducting magnet pressure releasing system architecture schematic diagram; Fig. 2 is the structural representation of the utility model superconducting magnet Pressure Relief Valve.
See also Fig. 1 and Fig. 2, the utility model provides superconducting magnet pressure releasing system comprises superconducting magnet Pressure Relief Valve 2, superconducting magnet Pressure Relief Valve 2 is connected with superconducting magnet 1 by refrigerant pipe 5, at least be provided with a suction port 27 and a relief opening 28 on superconducting magnet Pressure Relief Valve 2, wherein, be connected with the first stop valve 3 before described suction port 27 and form major loop, the two ends of Pressure Relief Valve 2 and the first stop valve 3 are connected with the second stop valve 4 and form the bypass circulation in parallel with described major loop.
the utility model also provides a kind of superconducting magnet Pressure Relief Valve of special use to be used for above-mentioned superconducting magnet pressure releasing system especially, superconducting magnet Pressure Relief Valve 2 comprises valve body 25, be provided with the dividing plate 20 of elastic member and a middle opening in valve body 25, described dividing plate 20 is divided into upper chamber 201 and lower chambers 202 with valve body 25, upper chamber 201 is provided with suction port 27, lower chambers 202 is provided with relief opening 28, be provided with hush panel 24 in lower chambers 202, hush panel 24 is fitted in elastic member with the tension function open part that also covers fully on dividing plate 20 on dividing plate 20 after being connected, be provided with sealed member between hush panel 24 and dividing plate 20.
The elastic member of described band tension function mainly plays damping and reset response, and characteristics are energy immediate recovery original shapes after external force is removed, and the utility model uses extension spring.Different from Compress Spring, at first compressed during Compress Spring work; And at first extension spring work the time be stretched.In brief, spring resistance to compression (negative distortion), extension spring tension (just being out of shape).Both can not the phase trans-substitution and with separately accurate requirement.The sealing means of Compress Spring in existing design, after bleed-off system experience ultralow temperature gas, spring contraction, cause releasing complete after, effectively resilience of spring makes seal failure.Therefore, the superconducting magnet pressure releasing system that the utility model provides preferably adopts the mode of extension spring 22 sealings to substitute Compress Spring commonly used in existing design or the sealing means of similar Compress Spring.The preferred bellows that also has independent setting, perhaps sylphon seal extension spring, perhaps extension spring and thermosensitive element make up the structure that arranges.Wherein, thermosensitive element consists of by meeting cold shrinkable material.Because bleeder valve provided by the utility model is used for releasing of superconducting magnet cryogenic gas, under low temperature condition, described thermosensitive element extension spring axially on produce and shrink, and extension spring when being used in conjunction with the stronger sealing effect of pulling force that extension spring produces better.Only take extension spring as example, in conjunction with as shown in Figure 2, its concrete Placement is as follows: extension spring 22 is arranged in upper chamber 201, and hush panel 24 is arranged on the below of dividing plate 20, and an end of extension spring 22 is connected with hush panel 24, and the other end is provided with pre-tightening force adjusting device.Such as being provided with adjusting nut 21 at the other end, and in adjusting nut 21 outsides, sealed cap 26 is set.Extension spring 22 also can be connected with the inwall of valve body 25 by an end, and the other end is connected with hush panel 24, and 21 of adjusting nuts are directly installed on hush panel 24, is provided with sealed cap outside adjusting nut.In above bleeder valve structure, adjusting nut is used for regulating the pretightening force of extension spring, the cracking pressure of controlled discharge valve.Acting as in the situation that pretightening force is certain of seal ring improved the effect of sealing.Hush panel can be used to install seal ring, and acting as of sealed cap seals the leakage that adjusting nut goes out, and guarantees the sealing effect of whole valve body.Extension spring is the execution architecture of bleeder valve, and the pretightening force of sealing use is provided.Adopt the mode of above-mentioned extension spring 22 sealings, after bleed-off system experience ultralow temperature, extension spring 22 is shunk, the problem that can effective compensation recoil of spring quantity not sufficient causes sealing not go up, thereby solve bleed-off system release complete after the effective problem of closure.
The utility model superconducting magnet bleed-off system adds that first stop valve 3 forms major loops before to Pressure Relief Valve 2, and adds that the second stop valve 4 forms bypass circulations for superconducting magnet Pressure Relief Valve 2.When magnet need to be released a large amount of refrigerants, the first stop valve 3 on the bleed-off system suction tude is closed, open the second stop valve 4, make superconducting magnet Pressure Relief Valve 2 experience less the ultralow temperature refrigerant as far as possible, improve working life and reliability.In a large amount of refrigerants that do not need to release, close the second stop valve 4, open the first stop valve 3 on the bleed-off system admission line.The common pressure releasing of superconducting magnet 1 is very small; can not impact superconducting magnet Pressure Relief Valve 2; but in rising the field or falling a process; having a large amount of refrigerants releases out; can adopt this operation this time; protection superconducting magnet Pressure Relief Valve 2, the reliability when improving its use.
Above-mentioned superconducting magnet pressure releasing system wherein, has one or more suction port, one or more relief opening on valve body 25; As shown in Figure 3, upper chamber 201 is provided with two suction ports 27, is connected with the first stop valve (not shown) before each suction port 27, and lower chambers 202 is provided with two relief openings 28.Described sealed member is preferably seal ring 23, and in order to increase sealing effect, seal ring 23 preferably is embedded in seal groove, and described seal groove can be opened on hush panel 24 or dividing plate 20, respectively as shown in Figure 4 and Figure 5.In addition, the utility model also can further adopt sealing gasket 29 to replace seal ring 23, and as shown in Figure 6, concrete mounting type is identical with seal ring, does not repeat them here.
Although the utility model discloses as above with preferred embodiment; so it is not to limit the utility model; any those skilled in the art; within not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (8)
1. superconducting magnet Pressure Relief Valve, comprise valve body (25), it is characterized in that, be provided with the elastic member of band tension function and the dividing plate (20) of a middle opening in described valve body (25), described dividing plate (20) is divided into upper chamber (201) and lower chambers (202) with valve body (25), described upper chamber (201) is provided with suction port (27), described lower chambers (202) is provided with relief opening (28), be provided with hush panel (24) in described lower chambers (202), described hush panel (24) is with to be fitted in dividing plate (20) after elastic member is connected upper and cover open part on dividing plate (20) fully.
2. superconducting magnet Pressure Relief Valve as claimed in claim 1, is characterized in that, described elastic member is extension spring (22) or bellows.
3. superconducting magnet Pressure Relief Valve as claimed in claim 1, is characterized in that, described elastic member is to be sealed with the bellows of extension spring or the combiner of extension spring and thermosensitive element.
4. superconducting magnet Pressure Relief Valve as claimed in claim 2 or claim 3, it is characterized in that, described elastic member is for being arranged on the extension spring (22) in upper chamber (201), described hush panel (24) is arranged on the below of dividing plate (20), one end of described extension spring (23) is connected with hush panel (24), and the other end is provided with pre-tightening force adjusting device.
5. superconducting magnet Pressure Relief Valve as claimed in claim 1, is characterized in that, is provided with sealed member between described hush panel (24) and dividing plate (20), and described sealed member is seal ring (23) or sealing gasket (29).
6. superconducting magnet Pressure Relief Valve as claimed in claim 5, is characterized in that, described seal ring (23) is embedded in seal groove, and described seal groove is opened on hush panel (24) or dividing plate (20).
7. superconducting magnet Pressure Relief Valve as claimed in claim 1, is characterized in that, described upper chamber (201) is provided with a plurality of suction ports (27), and described lower chambers (202) is provided with a plurality of relief openings (28).
8. pressure releasing system, it is characterized in that, comprise the described superconducting magnet Pressure Relief Valve of claim 1～7 any one (2), described Pressure Relief Valve (2) is connected with superconducting magnet (1) by refrigerant pipe (5), front the first stop valve (3) that is connected with of described suction port (27) forms major loop, and the two ends of described Pressure Relief Valve (2) and the first stop valve (3) are connected with the bypass circulation of the second stop valve (4) formation and described major loop parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549808 CN202927174U (en) | 2012-10-25 | 2012-10-25 | Superconducting magnet pressure discharge valve and pressure discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549808 CN202927174U (en) | 2012-10-25 | 2012-10-25 | Superconducting magnet pressure discharge valve and pressure discharging system |
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| Publication Number | Publication Date |
|---|---|
| CN202927174U true CN202927174U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220549808 Expired - Lifetime CN202927174U (en) | 2012-10-25 | 2012-10-25 | Superconducting magnet pressure discharge valve and pressure discharging system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202927174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775699A (en) * | 2012-10-25 | 2014-05-07 | 上海联影医疗科技有限公司 | Superconducting magnet pressure release valve and pressure release system |
| CN110686107A (en) * | 2019-09-30 | 2020-01-14 | 东软医疗系统股份有限公司 | Pressure valve for superconducting magnet container |
-
2012
- 2012-10-25 CN CN 201220549808 patent/CN202927174U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775699A (en) * | 2012-10-25 | 2014-05-07 | 上海联影医疗科技有限公司 | Superconducting magnet pressure release valve and pressure release system |
| CN103775699B (en) * | 2012-10-25 | 2015-11-25 | 上海联影医疗科技有限公司 | A kind of superconducting magnet Pressure Relief Valve and pressure releasing system |
| CN110686107A (en) * | 2019-09-30 | 2020-01-14 | 东软医疗系统股份有限公司 | Pressure valve for superconducting magnet container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170323 Address after: Room C, building 202-207, No.1 building, six industrial road, Nanshan District, Guangdong, Shenzhen, China Patentee after: SHENZHEN UNITED IMAGING HEALTHCARE Co.,Ltd. Address before: 201821 Shanghai City, Jiading District Jiading Industrial Zone No. 1180 Building 8 Hing Road Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |