CN114300205A - Vacuum heat insulation basin - Google Patents
Vacuum heat insulation basin Download PDFInfo
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- CN114300205A CN114300205A CN202111652626.7A CN202111652626A CN114300205A CN 114300205 A CN114300205 A CN 114300205A CN 202111652626 A CN202111652626 A CN 202111652626A CN 114300205 A CN114300205 A CN 114300205A
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- liquid nitrogen
- stop valve
- electromagnetic
- nitrogen stop
- hollow cavity
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Abstract
The invention discloses a vacuum heat insulation basin, comprising: a vacuum heat-insulating basin body; the electromagnetic liquid nitrogen stop valve penetrates through two sides of the vacuum heat insulation basin body and is provided with a driving coil; and the adiabatic binding post who links to each other with electromagnetic type liquid nitrogen stop valve, wherein: the heat insulation connecting terminal controls the on-off of the electromagnetic liquid nitrogen stop valve by changing the current direction of the driving coil; the electromagnetic liquid nitrogen stop valve still includes: electromagnetic type liquid nitrogen stop valve body, case and closing cap, wherein: the electromagnetic liquid nitrogen stop valve body is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end, and the end side of the hollow cavity is provided with a second opening end; the valve core and the driving coil are respectively arranged in the hollow cavity, and the first opening end is sealed by the sealing cover. The vacuum heat-insulation insulating basin can realize effective control of the liquid nitrogen communication state; the valve core is reasonable in assembly position, small in size and easy to assemble and install.
Description
Technical Field
The invention relates to the technical field of superconducting equipment, in particular to a vacuum heat-insulation insulating basin.
Background
The superconductor is a conductor with zero resistance characteristic at critical temperature, and can reduce resistance loss in electric energy transmission.
In the prior art, in order to facilitate maintenance and avoid shutdown of the whole system caused by failure of a single component, a heat-insulating basin is required to be adopted to separate liquid nitrogen and a superconductor in regions so as to realize isolation of high-voltage and low-temperature liquid nitrogen from a maintenance region. However, in normal operation, it is necessary that the liquid nitrogen on both sides of the insulating basin can flow through each other to achieve the overall balance of the temperature and pressure of the liquid nitrogen. The traditional vacuum heat insulation basin mainly has the problems that the volume of a stop valve is large, a driving part is located in a room temperature area, a valve core is located in a liquid nitrogen area and the like due to unreasonable structural design.
Disclosure of Invention
The invention aims to solve the technical problem of providing a vacuum heat-insulation insulating basin which can realize effective control of a liquid nitrogen communication state; the valve core is reasonable in assembly position, small in size and easy to assemble and install.
In order to solve the above technical problems, the present invention provides a vacuum insulation basin, comprising: a vacuum heat-insulating basin body; the electromagnetic liquid nitrogen stop valve penetrates through two sides of the vacuum heat insulation basin body and is provided with a driving coil; and the adiabatic binding post who links to each other with electromagnetic type liquid nitrogen stop valve, wherein: the heat insulation connecting terminal controls the on-off of the electromagnetic liquid nitrogen stop valve by changing the current direction of the driving coil; the electromagnetic liquid nitrogen stop valve still includes: electromagnetic type liquid nitrogen stop valve body, case and closing cap, wherein: the electromagnetic liquid nitrogen stop valve body is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end, and the end side of the hollow cavity is provided with a second opening end; the valve core and the driving coil are respectively arranged in the hollow cavity, and the first opening end is sealed by the sealing cover.
The electromagnetic liquid nitrogen stop valve body is of a sandwich structure on the end side wall of the first opening end.
Wherein, electromagnetic type liquid nitrogen stop valve still includes: and the liquid nitrogen channel is fastened at the second opening end and is communicated with the hollow cavity.
The driving coil repels the valve core through reverse direct current, the valve core moves in the reverse direction of the driving coil to close the liquid nitrogen channel, and liquid nitrogen on two sides of the vacuum heat insulation insulating basin cannot flow.
Wherein, the valve core is made of magnetic steel and is cylindrical; the valve core adopts axial magnetization.
Wherein, the surface of case plates with the polyimide picture layer.
Wherein, the drive coil includes: the coil comprises a coil body, a positive lead-out wire and a negative lead-out wire which are respectively connected with the coil body, a positive collecting ring and a negative collecting ring, wherein the positive collecting ring is connected with the positive lead-out wire through soldering, and the negative collecting ring is connected with the negative lead-out wire through soldering.
The positive collecting ring and the negative collecting ring are respectively connected with the head of the heat-insulation wiring terminal.
The positive collecting ring is connected with the positive electrode of the power supply, the negative collecting ring is connected with the negative electrode of the power supply, and the liquid nitrogen stop valve is in an open state; the positive collecting ring is connected with the negative pole of the power supply, and the liquid nitrogen stop valve is in a stop state when the negative collecting ring is connected with the positive pole of the power supply.
The vacuum heat insulation basin has the following beneficial effects: the vacuum heat insulation basin comprises a vacuum heat insulation basin body; the electromagnetic liquid nitrogen stop valve penetrates through two sides of the vacuum heat insulation basin body and is provided with a driving coil; and the adiabatic binding post who links to each other with electromagnetic type liquid nitrogen stop valve, wherein: the heat insulation connecting terminal controls the on-off of the electromagnetic liquid nitrogen stop valve by changing the current direction of the driving coil; the electromagnetic liquid nitrogen stop valve still includes: electromagnetic type liquid nitrogen stop valve body, case and closing cap, wherein: the electromagnetic liquid nitrogen stop valve body is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end, and the end side of the hollow cavity is provided with a second opening end; the valve core and the driving coil are respectively arranged in the hollow cavity, and the first opening end is sealed by the sealing cover, so that the effective control of the liquid nitrogen communication state can be realized; the valve core is reasonable in assembly position, small in size and easy to assemble and install.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a vacuum insulation basin according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electromagnetic liquid nitrogen stop valve of the vacuum heat insulation basin in the embodiment of the invention.
Fig. 3 is a schematic diagram of a blasting structure of the electromagnetic liquid nitrogen stop valve of the vacuum heat insulation basin in the embodiment of the invention.
Fig. 4 is a schematic structural diagram of an internal cross section of an electromagnetic liquid nitrogen stop valve of the vacuum insulation basin in the embodiment of the invention.
FIG. 5 is a schematic view of the structure of the driving coil of the vacuum insulation basin according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 to 5 show a first embodiment of the vacuum insulation basin of the present invention.
The vacuum heat insulation basin in this embodiment includes: a connected state for separating the liquid nitrogen of insulating basin both sides, control both sides liquid nitrogen includes: a vacuum heat-insulating basin body 1; the electromagnetic liquid nitrogen stop valve 2 penetrates through two sides of the vacuum heat insulation basin body 1, and the electromagnetic liquid nitrogen stop valve 2 is provided with a driving coil 20; and a heat insulation wiring terminal 3 connected with the electromagnetic liquid nitrogen stop valve 2.
Wherein: the heat insulation wiring terminal 3 controls the on-off of the electromagnetic liquid nitrogen stop valve 2 by changing the current direction of the driving coil 20; the electromagnetic liquid nitrogen stop valve 2 further comprises: electromagnetic liquid nitrogen stop valve body 21, case 22 and closing cap 23, wherein: the electromagnetic liquid nitrogen stop valve body 21 is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end T1, and the end side of the hollow cavity is provided with a second opening end T2; the valve spool 22 and the driving coil 20 are respectively installed in the hollow cavities, and the cap 23 seals the first open end T1.
During implementation, electromagnetic type liquid nitrogen stop valve 2 runs through 1 both sides of vacuum insulation basin body and establishes, and electromagnetic type liquid nitrogen stop valve 2 is equipped with drive coil 20, and electromagnetic type liquid nitrogen stop valve 2 still includes: and the liquid nitrogen channel 24 is fastened at the second opening end T2, and the liquid nitrogen channel 24 is communicated with the hollow cavity.
The electromagnetic liquid nitrogen stop valve 2 has the functions of: the liquid nitrogen stop valve 2 is provided with a driving coil 20, and the on-off of the stop valve can be realized by changing the current direction of the driving coil.
The function of the drive coil 20 is: by the reverse direct current, the driving coil 20 repels the valve core 22, the valve core 22 moves in the reverse direction towards the driving coil 20, the liquid nitrogen channel 24 is closed, and liquid nitrogen on two sides of the vacuum heat insulation basin cannot flow.
Further, the electromagnetic liquid nitrogen stop valve body 21 is made of 304 stainless steel. The driving coil 20 is positioned between the inner wall and the outer wall of the driving coil chamber, and the inner wall and the outer wall are encapsulated by adopting heat-conducting sealant. The valve core channel is used for accommodating the valve core, and the valve core can move along the channel. The inner diameter of the liquid nitrogen pipeline is 8mm, and the inner diameter of the valve core pipeline is 12.03 mm.
Further, the valve core 22 is made of magnetic steel and is cylindrical; the spool 22 is axially magnetized. In this embodiment, the valve core 22 is a cylinder, the outer diameter is 12.00mm, the height is 35mm, the outer surface of the valve core 22 is plated with a polyimide coating with the thickness of 0.05mm, the valve core adopts axial magnetization, and the axial stress direction of the valve core can be changed by changing the current direction in the driving coil.
Preferably, the electromagnetic liquid nitrogen shutoff valve body 21 has a sandwich structure at an end side of the first opening end T1.
Further, the driving coil 20 includes: the coil comprises a coil body 201, a positive lead wire 202 and a negative lead wire 203 which are respectively connected with the coil body 201, a positive collecting ring 204 and a negative collecting ring 205, wherein the positive collecting ring 204 is connected with the positive lead wire 202 through soldering, and the negative collecting ring 205 is connected with the negative lead wire 203 through soldering.
Further, a positive collector ring 204 and a negative collector ring 205 are respectively connected to the head of the heat-insulating terminal 3.
In specific implementation, the coil is wound by using a second-generation superconducting tape, the number of the coils is 200, and the rated current capacity is 10A. In the working state, the coil body 201 conducts heat through the valve body and is kept at the temperature of 77k, so that lower energy consumption can be realized. The positive lead wires 202 and the positive collector ring 204 are soldered. The negative lead wire 203 and the negative collector ring 205 are soldered. The collector ring is in contact with the head of the insulated terminal,
the positive collecting ring 204 is connected with the positive electrode of the power supply, the negative collecting ring 205 is connected with the negative electrode of the power supply, and the liquid nitrogen stop valve is in an open state; when the positive collector ring 204 is connected with the negative electrode of the power supply and the negative collector ring 205 is connected with the positive electrode of the power supply, the liquid nitrogen stop valve is in a stop state.
When the vacuum heat insulation basin in the embodiment is implemented specifically, when the driving coil 20 passes through positive direct current, the driving coil 20 attracts the valve core 22, the valve core 22 moves towards the driving coil 20 side, the liquid nitrogen channel 24 of the valve body is opened, and liquid nitrogen on two sides of the vacuum heat insulation basin can freely flow through the liquid nitrogen channel 24 of the valve body. When the electromagnetic liquid nitrogen stop valve works normally, the driving coil 20 always keeps flowing forward direct current so as to keep the electromagnetic liquid nitrogen stop valve in an opening state. When the driving coil 20 passes through the reverse direct current, the driving coil 20 repels the valve core 22, the valve core 22 moves in the reverse direction of the driving coil 20, the liquid nitrogen channel 24 of the valve body is closed, and liquid nitrogen on two sides of the vacuum heat insulation basin cannot flow. At this time, the liquid nitrogen on one side of the vacuum heat insulation basin can be discharged to carry out maintenance operation, and when the maintenance operation is carried out, the driving coil 20 always keeps circulating reverse direct current so as to keep the electromagnetic liquid nitrogen stop valve in a stop state.
The vacuum heat insulation basin has the following beneficial effects:
the first heat insulation wiring terminal controls the on-off of the electromagnetic liquid nitrogen stop valve by changing the current direction of the driving coil; the electromagnetic liquid nitrogen stop valve still includes: electromagnetic type liquid nitrogen stop valve body, case and closing cap, wherein: the electromagnetic liquid nitrogen stop valve body is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end, and the end side of the hollow cavity is provided with a second opening end; the valve core and the driving coil are respectively arranged in the hollow cavity, and the first opening end is sealed by the sealing cover. The on-off of the electromagnetic liquid nitrogen stop valve is controlled by changing the current direction of the driving coil, so that the effective control of the liquid nitrogen communication state can be realized.
Secondly, the valve core is reasonable in assembly position, small in size and easy to assemble and install.
Claims (9)
1. The utility model provides a vacuum insulation basin for separate the liquid nitrogen of insulating basin both sides, the connected state of control both sides liquid nitrogen, its characterized in that includes:
a vacuum heat-insulating basin body;
the electromagnetic liquid nitrogen stop valve penetrates through two sides of the vacuum heat insulation basin body and is provided with a driving coil; and
with adiabatic binding post that electromagnetic type liquid nitrogen stop valve links to each other, wherein: the heat-insulation wiring terminal controls the on-off of the electromagnetic liquid nitrogen stop valve by changing the current direction of the driving coil;
the electromagnetic liquid nitrogen stop valve further comprises: electromagnetic type liquid nitrogen stop valve body, case and closing cap, wherein: the electromagnetic liquid nitrogen stop valve body is provided with a hollow cavity, the top side of the hollow cavity is provided with a first opening end, and the end side of the hollow cavity is provided with a second opening end;
the valve core and the driving coil are respectively arranged in the hollow cavity, and the first opening end is sealed by the sealing cover.
2. The vacuum insulation basin according to claim 1, wherein the electromagnetic liquid nitrogen stop valve body is provided with a sandwich structure at an end side wall of the first opening end.
3. The vacuum insulation basin according to claim 1, wherein the electromagnetic liquid nitrogen stop valve further comprises: and the liquid nitrogen channel is fastened at the second opening end and is communicated with the hollow cavity.
4. The vacuum insulation basin according to claim 3, wherein the driving coil repels the valve core by the reverse direct current, the valve core moves in the reverse direction to the driving coil to close the liquid nitrogen passage, and liquid nitrogen on two sides of the vacuum insulation basin cannot flow.
5. The vacuum heat insulation basin according to claim 1, wherein the valve core is made of magnetic steel and is cylindrical;
the valve core adopts axial magnetization.
6. The vacuum insulation basin of claim 5, wherein the outer surface of the valve core is plated with a polyimide coating.
7. The vacuum insulation basin of claim 1, wherein the drive coil comprises: the coil comprises a coil body, a positive lead-out wire and a negative lead-out wire which are respectively connected with the coil body, a positive collecting ring and a negative collecting ring, wherein the positive collecting ring is connected with the positive lead-out wire through soldering, and the negative collecting ring is connected with the negative lead-out wire through soldering.
8. The vacuum insulation basin of claim 7, wherein the positive collector ring and the negative collector ring are respectively connected to the head portions of the insulation terminals.
9. The vacuum heat insulation basin according to claim 8, wherein the positive collecting ring is connected with a positive electrode of a power supply, the negative collecting ring is connected with a negative electrode of the power supply, and the liquid nitrogen stop valve is in an open state;
the positive collecting ring is connected with the negative electrode of the power supply, and the liquid nitrogen stop valve is in a stop state when the negative collecting ring is connected with the positive electrode of the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111652626.7A CN114300205B (en) | 2021-12-30 | 2021-12-30 | Vacuum heat insulation basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111652626.7A CN114300205B (en) | 2021-12-30 | 2021-12-30 | Vacuum heat insulation basin |
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| Publication Number | Publication Date |
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| CN114300205A true CN114300205A (en) | 2022-04-08 |
| CN114300205B CN114300205B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111652626.7A Active CN114300205B (en) | 2021-12-30 | 2021-12-30 | Vacuum heat insulation basin |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08298060A (en) * | 1995-04-26 | 1996-11-12 | Sumitomo Wiring Syst Ltd | Electromagnetic switch |
| JPH08329799A (en) * | 1995-06-06 | 1996-12-13 | Fuji Electric Co Ltd | High speed vacuum dc circuit breaker |
| JP2005332721A (en) * | 2004-05-20 | 2005-12-02 | Tokyo Denki Univ | Vacuum current breaking device |
| CN106448956A (en) * | 2016-11-14 | 2017-02-22 | 上海腾炎新材料有限公司 | Fiber-reinforced basin-type insulator for high voltage switchgear |
| CN209591683U (en) * | 2019-01-02 | 2019-11-05 | 西门子股份公司 | Insulating basin and gas-insulated switch |
| CN113404617A (en) * | 2021-07-26 | 2021-09-17 | 北京航空航天大学 | Non-contact driven adjustable cavitation venturi |
-
2021
- 2021-12-30 CN CN202111652626.7A patent/CN114300205B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08298060A (en) * | 1995-04-26 | 1996-11-12 | Sumitomo Wiring Syst Ltd | Electromagnetic switch |
| JPH08329799A (en) * | 1995-06-06 | 1996-12-13 | Fuji Electric Co Ltd | High speed vacuum dc circuit breaker |
| JP2005332721A (en) * | 2004-05-20 | 2005-12-02 | Tokyo Denki Univ | Vacuum current breaking device |
| CN106448956A (en) * | 2016-11-14 | 2017-02-22 | 上海腾炎新材料有限公司 | Fiber-reinforced basin-type insulator for high voltage switchgear |
| CN209591683U (en) * | 2019-01-02 | 2019-11-05 | 西门子股份公司 | Insulating basin and gas-insulated switch |
| CN113404617A (en) * | 2021-07-26 | 2021-09-17 | 北京航空航天大学 | Non-contact driven adjustable cavitation venturi |
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| Publication number | Publication date |
|---|---|
| CN114300205B (en) | 2023-08-15 |
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