CN111698877A - Superconducting power integration system and monitoring method thereof - Google Patents
Superconducting power integration system and monitoring method thereof Download PDFInfo
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- CN111698877A CN111698877A CN202010547255.5A CN202010547255A CN111698877A CN 111698877 A CN111698877 A CN 111698877A CN 202010547255 A CN202010547255 A CN 202010547255A CN 111698877 A CN111698877 A CN 111698877A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20372—Cryogenic cooling; Nitrogen liquid cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/16—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/105—Cooling by special liquid or by liquid of particular composition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F36/00—Transformers with superconductive windings or with windings operating at cryogenic temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
- H02H9/023—Current limitation using superconducting elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20381—Thermal management, e.g. evaporation control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The embodiment of the invention discloses a superconducting power integration system, a monitoring system and a monitoring method thereof, wherein the superconducting power integration system comprises: a liquid nitrogen storage tank; at least one refrigerator arranged on the liquid nitrogen storage tank; the system comprises a plurality of equipment storage tanks, a controller and a controller, wherein each equipment storage tank is used for placing at least one superconducting power equipment and is connected with a liquid nitrogen storage tank through a pipeline; the liquid nitrogen pump is connected with the liquid nitrogen storage tank through a pipeline and used for boosting the liquid nitrogen in the liquid nitrogen storage tank after being refrigerated by the refrigerator and transmitting the boosted liquid nitrogen to the equipment storage tank through an outlet pipeline of the liquid nitrogen pump; and one end of the low-temperature pipeline is communicated with the outlet pipeline of each equipment storage tank, and the other end of the low-temperature pipeline is communicated with the inlet pipeline of the liquid nitrogen storage tank. The superconducting power integrated system, the monitoring system and the monitoring method provided by the embodiment of the invention can reduce the number of the refrigerators and improve the utilization rate of the refrigerators.
Description
Technical Field
The embodiment of the invention relates to a refrigeration technology, in particular to a superconducting power integrated system and a monitoring method thereof.
Background
In a power system, superconducting power equipment is made of superconducting materials, and has the characteristics of high efficiency, low consumption, safety, environmental protection and the like, so the superconducting power equipment is also widely applied, and as the superconducting materials need a low-temperature environment, namely a refrigeration system is needed for refrigerating the superconducting power equipment, and the effective utilization rate of the refrigeration system is also important content.
At present, in the existing superconducting power system, in order to avoid shutdown of superconducting power equipment caused by damage of a refrigerator in the system, the superconducting power system of each superconducting power equipment is provided with a plurality of refrigerators, and when a part of the superconducting power equipment is stopped, the refrigerator is low in utilization rate and overlarge in redundancy.
Disclosure of Invention
The embodiment of the invention provides a superconducting power integrated system, a monitoring system and a monitoring method thereof, which are used for reducing the number of refrigerators and improving the utilization rate of the refrigerators.
In a first aspect, an embodiment of the present invention provides a superconducting power integration system, including:
the liquid nitrogen storage tank is used for storing liquid nitrogen;
at least one refrigerator arranged on the liquid nitrogen storage tank;
the system comprises a plurality of equipment storage tanks, a liquid nitrogen storage tank and a control system, wherein each equipment storage tank is used for placing at least one part assembly of superconducting power equipment and is connected with the liquid nitrogen storage tank through a pipeline;
the liquid nitrogen pump is connected with the liquid nitrogen storage tank through a pipeline and used for boosting the liquid nitrogen in the liquid nitrogen storage tank after being refrigerated by the refrigerator and transmitting the boosted liquid nitrogen to the equipment storage tank through an outlet pipeline of the liquid nitrogen pump;
and one end of the low-temperature pipeline is communicated with the outlet pipelines of the equipment storage tanks, the other end of the low-temperature pipeline is communicated with the inlet pipeline of the liquid nitrogen storage tank, and the low-temperature pipeline is used for transmitting the liquid nitrogen discharged from the outlet pipelines of the equipment storage tanks back to the liquid nitrogen storage tank.
Optionally, the number of the refrigerators is multiple, and when the plurality of superconducting power devices need to refrigerate, at least one of the plurality of refrigerators is in a working state, and at least one of the plurality of refrigerators is in a standby state.
Optionally, the superconducting power equipment includes at least one of a superconducting cable, a superconducting transformer, a superconducting current limiter, and a superconducting energy storage device.
Optionally, a liquid level measuring module, a temperature measuring module and a hydraulic pressure measuring module are arranged in the equipment storage tank.
In a second aspect, an embodiment of the present invention further provides a monitoring system for a superconducting power integrated system, which is applied to the superconducting power integrated system according to the first aspect, wherein a device storage tank in the superconducting power integrated system is provided with a liquid level measurement module, and the monitoring system is in communication connection with the liquid level measurement module and is used for monitoring a liquid level of liquid nitrogen in the device storage tank.
Optionally, the equipment storage tank is further provided with a temperature measurement module and a hydraulic measurement module, the monitoring system is in communication connection with the temperature measurement module, the monitoring system is in communication connection with the hydraulic measurement module, and the monitoring system is further used for monitoring the hydraulic pressure and the temperature of liquid nitrogen in the equipment storage tank.
Optionally, the monitoring system is electrically connected to a liquid nitrogen pump in the superconducting power integrated system, and the monitoring system is further configured to monitor a working state of the liquid nitrogen pump.
In a third aspect, an embodiment of the present invention further provides a monitoring method for a superconducting power integrated system, where the monitoring method is executed by the monitoring system in the second aspect, and the monitoring method includes:
acquiring liquid level information of liquid nitrogen in an equipment storage tank;
and controlling the liquid nitrogen pump to work when the liquid level of the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset height according to the liquid level information.
Optionally, the monitoring method further includes:
acquiring hydraulic information and temperature information of liquid nitrogen in an equipment storage tank;
and controlling the liquid nitrogen pump to work when the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset pressure and/or the temperature to be lower than the preset temperature according to the hydraulic information and the temperature information.
Optionally, the preset height is not lower than the height of the component in the equipment storage tank, and the component is a component of the superconducting power equipment.
The embodiment of the invention provides a superconducting power integrated system, a monitoring system and a monitoring method thereof, wherein the superconducting power integrated system comprises a liquid nitrogen storage tank, at least one refrigerating machine, a plurality of equipment storage tanks, a liquid nitrogen pump and a low-temperature pipeline, each equipment storage tank is used for placing at least one superconducting power device, namely, one superconducting power integrated system can refrigerate for the plurality of superconducting power devices, the refrigerating machines in the superconducting power integrated system can be shared and mutually standby, the number of the refrigerating machines is reduced, and the utilization rate of the refrigerating machines is improved.
Drawings
Fig. 1 is a schematic structural diagram of a superconducting power integration system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a superconducting power integrated system and a monitoring system thereof according to a second embodiment of the present invention;
fig. 3 is a flowchart of a monitoring method of a superconducting power integrated system according to a third embodiment of the present invention;
fig. 4 is a flowchart of a monitoring method of a superconducting power integrated system according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of a superconducting power integrated system according to an embodiment of the present invention, which is applicable to superconducting power refrigeration and the like, and includes a liquid nitrogen storage tank 10, at least one refrigerator 20, a plurality of device storage tanks 30, a liquid nitrogen pump 40, and a cryogenic pipeline 50.
Wherein, the liquid nitrogen storage tank 10 is used for storing liquid nitrogen; at least one refrigerator 20 is provided on the liquid nitrogen storage tank 10; each equipment storage tank 30 is used for placing at least one partial assembly of the superconducting power equipment 60, and the equipment storage tank 30 is connected with the liquid nitrogen storage tank 10 through a pipeline; the liquid nitrogen pump 40 is connected with the liquid nitrogen storage tank 10 through a pipeline, and is used for boosting the liquid nitrogen in the liquid nitrogen storage tank 10 after being refrigerated by the refrigerator 20 and transmitting the boosted liquid nitrogen to the equipment storage tank 30 through an outlet pipeline of the liquid nitrogen pump 40; one end of the low-temperature pipeline 50 is communicated with an outlet pipeline of each equipment storage tank 30, the other end of the low-temperature pipeline 50 is communicated with an inlet pipeline of the liquid nitrogen storage tank 10, and the low-temperature pipeline 50 is used for transmitting liquid nitrogen discharged from the outlet pipeline of the equipment storage tank 30 back to the liquid nitrogen storage tank 10.
Specifically, each device storage tank 30 may be configured to store a partial component of one superconducting power device 60, when one or more superconducting power devices 60 are in an operating state, at least one refrigerator 20 refrigerates liquid nitrogen in the liquid nitrogen storage tank 10, the liquid nitrogen pump 40 boosts the liquid nitrogen in the liquid nitrogen storage tank 10 after being refrigerated by the refrigerator 20, and transmits the boosted liquid nitrogen to the device storage tank 30 through an outlet pipeline of the liquid nitrogen pump 40, so that sufficient low-temperature liquid nitrogen in the device storage tank 30 provides a low-temperature environment for a component of the superconducting power device 60 that needs the low-temperature environment, thereby ensuring normal operation of the superconducting power device 60. The low-temperature pipeline 50 can transmit the liquid nitrogen discharged from the outlet pipeline of the equipment storage tank 30 back to the liquid nitrogen storage tank 10, so that the liquid nitrogen can be recycled, and the utilization rate of the liquid nitrogen is improved. Compared with the prior art that one system corresponds to one superconducting power device, each system is provided with a plurality of refrigerators, and the refrigerators in each system cannot be shared, one integrated system in the embodiment corresponds to a plurality of superconducting power devices 60, the refrigerators in the integrated system can be shared and mutually stand-by, the number of the refrigerators in the system can be reduced, and the utilization rate of the refrigerators is improved.
Therefore, the superconducting power integration system provided by the embodiment comprises the liquid nitrogen storage tank, the at least one refrigerating machine, the multiple equipment storage tanks, the liquid nitrogen pump and the low-temperature pipeline, wherein each equipment storage tank is used for placing part of components of the at least one superconducting power equipment, namely, one superconducting power integration system can refrigerate the multiple superconducting power equipment, the number of the refrigerating machines is reduced, and the utilization rate of the refrigerating machines is improved.
Optionally, there are a plurality of refrigerators 20, and when the plurality of superconducting power devices 60 need to be refrigerated, at least one refrigerator 20 of the plurality of refrigerators 20 is in an operating state, and at least one refrigerator 20 is in a standby state.
Wherein, the number of the refrigerators 20 is determined according to the liquid nitrogen temperature required by the operation of the superconducting power device 60 and the power of the refrigerators 20, taking as an example that one superconducting power integrated system refrigerates four superconducting power devices 60, if two refrigerators with 200W power or three refrigerators with 100W power refrigerate the liquid nitrogen to reach a temperature that can meet the liquid nitrogen temperature required by the operation of the four superconducting power devices 60, the superconducting power integrated system may adopt three refrigerators with 200W power or four refrigerators with 100W power, when the four superconducting power devices 60 are all in the operating state, any two of the three refrigerators with 200W power are required to operate, the other one is in the standby state, or any three of the four refrigerators with 100W power are required to operate, the other one is in the standby state, and when the refrigerator in the operating state fails, the refrigerator in the standby state can refrigerate by the refrigerator in the standby state, the normal operation of the superconducting power integrated system is ensured, and the actually required power of the refrigerator can be determined according to the cost and efficiency of the refrigerator, and is not particularly limited herein.
Optionally, the superconducting power apparatus 60 includes at least one of a superconducting cable, a superconducting transformer, a superconducting current limiter, and a superconducting energy storage device.
The superconducting power equipment 60 may be at least one of a superconducting cable, a superconducting transformer, a superconducting current limiter and a superconducting energy storage device according to actual needs, and the superconducting power equipment 60 used in the power grid can reduce loss for the power grid to the maximum extent and achieve efficient utilization of electric energy.
Optionally, a liquid level measuring module, a temperature measuring module and a hydraulic pressure measuring module are arranged in the equipment tank 30.
Specifically, the liquid level measurement module, the temperature measurement module and the hydraulic pressure measurement module can respectively measure the liquid level, the temperature and the hydraulic pressure of the liquid nitrogen in the equipment storage tank 30, so that the liquid level, the temperature and the hydraulic pressure of the liquid nitrogen in the equipment storage tank 30 are monitored through the liquid level measurement module, the temperature measurement module and the hydraulic pressure measurement module, and corresponding measures can be taken timely when the liquid level of the liquid nitrogen in the equipment storage tank 30 is lower than a preset height and/or the temperature is higher than a preset temperature and/or the hydraulic pressure is lower than a preset pressure.
Example two
Fig. 2 is a schematic structural diagram of a superconducting power integrated system and a monitoring system thereof according to a second embodiment of the present invention, where the present embodiment is applicable to situations such as superconducting power refrigeration, and the monitoring system 100 is applied to the superconducting power integrated system according to the above embodiment, a device storage tank 30 in the superconducting power integrated system is provided with a liquid level measurement module 31, and the monitoring system 100 is in communication connection with the liquid level measurement module 31 and is used for monitoring a liquid level of liquid nitrogen in the device storage tank 30.
Specifically, the monitoring system 100 is in communication connection with the liquid level measurement module 31, and the monitoring system 100 can acquire liquid level information of liquid nitrogen in the equipment storage tank 30 measured by the liquid level measurement module 31, so that the liquid level of the liquid nitrogen in the equipment storage tank 30 is monitored in real time according to the acquired liquid level information, and corresponding measures can be taken in time when the monitored liquid level of the liquid nitrogen in the equipment storage tank 30 is lower than a preset height.
The monitoring system of the superconducting power integrated system provided by the embodiment is in communication connection with the liquid level measurement module, and monitors the liquid level of liquid nitrogen in the equipment storage tank in real time through the liquid level information measured by the acquired liquid level measurement module, so that corresponding measures can be taken in time when the liquid level of the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset height.
Optionally, the equipment storage tank 30 is further provided with a temperature measurement module 32 and a hydraulic pressure measurement module 33, the monitoring system 100 is in communication connection with the temperature measurement module 32, the monitoring system 100 is in communication connection with the hydraulic pressure measurement module 33, and the monitoring system 100 is further configured to monitor the hydraulic pressure and the temperature of the liquid nitrogen in the equipment storage tank 30.
The monitoring system 100 can obtain the temperature information of the liquid nitrogen in the equipment storage tank 30 measured by the temperature measuring module 32 and the hydraulic pressure information of the liquid nitrogen in the equipment storage tank 30 measured by the hydraulic pressure measuring module 33, so as to monitor the temperature and the hydraulic pressure of the liquid nitrogen in the equipment storage tank 30 in real time, and can take corresponding measures in time when the temperature of the liquid nitrogen in the equipment storage tank 30 is monitored to be higher than the preset temperature and/or the hydraulic pressure is monitored to be lower than the preset pressure.
Optionally, the monitoring system 100 is electrically connected to the liquid nitrogen pump 40 in the superconducting power integrated system, and the monitoring system 100 is further configured to monitor the operating state of the liquid nitrogen pump 40.
Specifically, when the monitoring system 100 monitors that the liquid level of the liquid nitrogen in the equipment storage tank 30 is lower than a preset height and/or the temperature is higher than a preset temperature and/or the hydraulic pressure is lower than a preset pressure, the liquid nitrogen pump 40 is controlled to operate, the liquid nitrogen is transmitted to the equipment storage tank 30 through the liquid nitrogen pump 40, and the equipment storage tank 30 is ensured to provide a low-temperature environment required by normal operation for the superconducting power equipment 60.
The monitoring system of superconducting power integrated system that this embodiment provided, with liquid level measurement module communication connection, with temperature measurement module communication connection, with hydraulic pressure measurement module communication connection, and be connected with the liquid nitrogen pump electricity, liquid level information through acquireing, the liquid level of liquid nitrogen in temperature information and the hydraulic pressure information is to the equipment storage tank, real time monitoring is carried out to temperature and hydraulic pressure, when monitoring the liquid level of liquid nitrogen is less than preset height and/or temperature is higher than preset temperature and/or hydraulic pressure and is less than preset pressure in the equipment storage tank, control liquid nitrogen pump work, transmit liquid nitrogen for the equipment storage tank through the liquid nitrogen pump, guarantee that the equipment storage tank provides the required low temperature environment of normal work for superconducting power equipment.
EXAMPLE III
Fig. 3 is a flowchart of a monitoring method for a superconducting power integrated system according to a third embodiment of the present invention, where the present embodiment is applicable to situations such as superconducting power refrigeration, and the method may be executed by the monitoring system according to the foregoing embodiment, and specifically includes the following steps:
and step 110, obtaining liquid level information of liquid nitrogen in the storage tank of the equipment.
Wherein, can be provided with the liquid level measurement module with monitored control system communication connection in the equipment storage tank, the liquid level information accessible liquid level measurement module of liquid nitrogen acquires in the equipment storage tank to the liquid level of liquid nitrogen in the equipment storage tank is monitored according to the liquid level information who acquires.
And step 120, controlling the liquid nitrogen pump to work when the liquid level of the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset height according to the liquid level information.
The preset height is not lower than the height of the components in the equipment storage tank, the components are the components of the superconducting power equipment which need low-temperature environment, the preset height can be higher than the height of the components in the equipment storage tank by several centimeters, and the preset height is determined according to actual conditions and is not limited herein. When the monitoring system monitors that the liquid level of the liquid nitrogen in the equipment storage tank is lower than the preset height, the liquid nitrogen pump is controlled to work, the liquid nitrogen is transmitted to the equipment storage tank through the liquid nitrogen pump, and the equipment storage tank is guaranteed to provide a low-temperature environment required by normal work for the superconducting power equipment.
According to the monitoring method of the superconducting power integrated system, when the liquid level of liquid nitrogen in the equipment storage tank is monitored to be lower than the preset height, the liquid nitrogen pump can be controlled to work, so that the liquid nitrogen is transmitted to the equipment storage tank through the liquid nitrogen pump, and the equipment storage tank is guaranteed to provide a low-temperature environment required by normal work for the superconducting power equipment.
Example four
Fig. 4 is a flowchart of a monitoring method for a superconducting power integrated system according to a fourth embodiment of the present invention, where this embodiment is applicable to situations such as superconducting power refrigeration, and the method may be executed by the monitoring system according to the foregoing embodiment, and specifically includes the following steps:
and step 210, obtaining liquid level information of liquid nitrogen in the storage tank of the equipment.
Wherein, can be provided with the liquid level measurement module with monitored control system communication connection in the equipment storage tank, the liquid level information accessible liquid level measurement module of liquid nitrogen acquires in the equipment storage tank to the liquid level of liquid nitrogen in the equipment storage tank is monitored according to the liquid level information who acquires.
And step 220, controlling the liquid nitrogen pump to work when the liquid level of the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset height according to the liquid level information.
The preset height is not lower than the height of the components in the equipment storage tank, the components are the components of the superconducting power equipment which need low-temperature environment, the preset height can be higher than the height of the components in the equipment storage tank by several centimeters, and the preset height is determined according to actual conditions and is not limited herein. When the monitoring system monitors that the liquid level of the liquid nitrogen in the equipment storage tank is lower than the preset height, the liquid nitrogen pump is controlled to work, the liquid nitrogen is transmitted to the equipment storage tank through the liquid nitrogen pump, and the equipment storage tank is guaranteed to provide a low-temperature environment required by normal work for the superconducting power equipment.
And step 230, acquiring hydraulic information and temperature information of liquid nitrogen in the storage tank of the equipment.
The device storage tank can be internally provided with a hydraulic measurement module and a temperature measurement module which are in communication connection with the monitoring system, and the hydraulic information and the temperature information of the liquid nitrogen in the device storage tank can be respectively acquired through the hydraulic measurement module and the temperature measurement module so as to monitor the hydraulic pressure and the temperature of the liquid nitrogen in the device storage tank according to the acquired hydraulic information and temperature information.
And step 240, controlling the liquid nitrogen pump to work when the hydraulic pressure of the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset pressure and/or the temperature is monitored to be lower than the preset temperature according to the hydraulic pressure information and the temperature information.
Specifically, when the monitoring system monitors that the hydraulic pressure of liquid nitrogen in the equipment storage tank is lower than the preset pressure and/or the temperature is lower than the preset temperature, the liquid nitrogen pump is controlled to work, the liquid nitrogen is transmitted to the equipment storage tank through the liquid nitrogen pump, and the equipment storage tank is guaranteed to provide a low-temperature environment required by normal work for the superconducting power equipment.
It should be noted that the preset pressure and the preset temperature may be specifically determined according to actual situations, and are not limited herein.
According to the monitoring method of the superconducting power integrated system provided by the embodiment, when the hydraulic pressure of liquid nitrogen in the equipment storage tank is monitored to be lower than the preset pressure and/or the temperature is monitored to be lower than the preset temperature, the liquid nitrogen pump can be controlled to work, so that the liquid nitrogen is transmitted to the equipment storage tank through the liquid nitrogen pump, and the equipment storage tank is ensured to provide a low-temperature environment required by normal work for the superconducting power equipment.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A superconducting power integration system, comprising:
the liquid nitrogen storage tank is used for storing liquid nitrogen;
at least one refrigerator arranged on the liquid nitrogen storage tank;
a plurality of equipment storage tanks, each of which is used for placing at least one partial assembly of superconducting power equipment, wherein the equipment storage tanks are connected with the liquid nitrogen storage tank through pipelines;
the liquid nitrogen pump is connected with the liquid nitrogen storage tank through a pipeline and used for boosting the liquid nitrogen in the liquid nitrogen storage tank after being refrigerated by the refrigerator and transmitting the boosted liquid nitrogen to the equipment storage tank through an outlet pipeline of the liquid nitrogen pump;
and one end of the low-temperature pipeline is communicated with the outlet pipelines of the equipment storage tanks, the other end of the low-temperature pipeline is communicated with the inlet pipeline of the liquid nitrogen storage tank, and the low-temperature pipeline is used for transmitting the liquid nitrogen discharged from the outlet pipelines of the equipment storage tanks back to the liquid nitrogen storage tank.
2. The superconducting power integration system according to claim 1, wherein the number of the refrigerators is plural, and when the plurality of superconducting power devices require refrigeration, at least one of the refrigerators is in an operating state and at least one of the refrigerators is in a standby state.
3. The superconducting power integration system of claim 1, wherein the superconducting power equipment comprises at least one of a superconducting cable, a superconducting transformer, a superconducting current limiter, and a superconducting energy storage device.
4. The superconducting power integration system of claim 1, wherein a liquid level measurement module, a temperature measurement module, and a hydraulic pressure measurement module are disposed in the equipment tank.
5. A monitoring system of a superconducting power integration system, which is applied to the superconducting power integration system according to any one of claims 1 to 4, wherein a liquid level measuring module is arranged in an equipment storage tank in the superconducting power integration system, and the monitoring system is in communication connection with the liquid level measuring module and is used for monitoring the liquid level of liquid nitrogen in the equipment storage tank.
6. The monitoring system of claim 5, wherein the equipment tank is further provided with a temperature measurement module and a hydraulic pressure measurement module, the monitoring system is in communication with the temperature measurement module, and the monitoring system is in communication with the hydraulic pressure measurement module, the monitoring system is further configured to monitor the hydraulic pressure and temperature of the liquid nitrogen in the equipment tank.
7. The monitoring system according to claim 5, wherein the monitoring system is electrically connected to a liquid nitrogen pump in the superconducting power integration system, and the monitoring system is further configured to monitor an operating state of the liquid nitrogen pump.
8. A monitoring method of a superconducting power integration system, the monitoring method being performed by the monitoring system of any one of claims 5 to 7, the monitoring method comprising:
acquiring liquid level information of liquid nitrogen in an equipment storage tank;
and controlling a liquid nitrogen pump to work when the liquid level of the liquid nitrogen in the equipment storage tank is monitored to be lower than a preset height according to the liquid level information.
9. The method of claim 8, further comprising:
acquiring hydraulic information and temperature information of liquid nitrogen in the equipment storage tank;
and controlling the liquid nitrogen pump to work when the liquid nitrogen in the equipment storage tank is monitored to be lower than the preset pressure and/or the temperature to be lower than the preset temperature according to the hydraulic information and the temperature information.
10. The method of claim 8, wherein the predetermined height is not lower than a height of a component in the equipment tank, the component being a component of superconducting power equipment.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113012888A (en) * | 2021-03-18 | 2021-06-22 | 上海辰光医疗科技股份有限公司 | Multifunctional monitoring system for superconducting magnet |
| CN114458947A (en) * | 2022-02-09 | 2022-05-10 | 广东电网有限责任公司 | Operation and maintenance method and device of superconducting power system and superconducting power integrated system |
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| CN114458947A (en) * | 2022-02-09 | 2022-05-10 | 广东电网有限责任公司 | Operation and maintenance method and device of superconducting power system and superconducting power integrated system |
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