CN108831664B - Pressure stabilizer with energy conversion function for low-temperature compressed gas cavity - Google Patents
Pressure stabilizer with energy conversion function for low-temperature compressed gas cavity Download PDFInfo
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- CN108831664B CN108831664B CN201810474376.4A CN201810474376A CN108831664B CN 108831664 B CN108831664 B CN 108831664B CN 201810474376 A CN201810474376 A CN 201810474376A CN 108831664 B CN108831664 B CN 108831664B
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- 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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Abstract
The invention relates to a pressure stabilizing device with an energy conversion function for a low-temperature compressed gas cavity, which is used for solving the problem of stable surface vapor pressure of low-temperature compressed gas in a rapid refrigerating system in different environments and has the effect of adapting to environmental temperature change and pressure change in a large range. The method specifically comprises the following steps: the energy converter and the voltage stabilizer are communicated through a connecting pipe; the energy converter is provided with an inlet of low-temperature compressed gas, and exchanges heat with the low-temperature compressed gas through an energy conversion sheet group arranged in the energy converter; and the low-temperature compressed gas after heat exchange enters the pressure stabilizer through the connecting pipe, and is discharged after being stabilized by the pressure stabilizer. The invention adopts the energy converter, so that the impact on the membrane assembly of the voltage stabilizer is greatly reduced when low-temperature compressed gas is discharged out of the gas cavity, the service life of the membrane is prolonged, the voltage stabilizing effect of the voltage stabilizer is improved, and adverse phenomena such as frosting and the like do not exist; and the pressure stabilizer is adopted to keep the surface vapor pressure of the liquid compressed gas in the low-temperature cavity stable when the low-temperature compressed gas enters and exits the gas cavity.
Description
Technical Field
The invention relates to a pressure stabilizing device, in particular to a pressure stabilizing device for a low-temperature compressed gas cavity, and belongs to the technical field of microwave communication equipment.
Background
Microwave electronic systems play a crucial role in various communication systems, and technical indexes and characteristics of high-performance microwave systems play a critical role in the whole communication system. Nowadays, superconducting materials have been widely used for the fabrication of microwave devices since their discovery. However, the operating temperature of both high-temperature superconducting devices and low-temperature superconducting devices is below 100K (173 degrees centigrade below zero), and the requirement of lower operating environment temperature needs to be met.
There are two main methods for cooling high temperature superconducting electronic devices: one is that the refrigerator is purchased directly for refrigeration, the cost is large and can reach tens of thousands yuan, and the refrigeration time from room temperature to liquid nitrogen temperature generally needs dozens of minutes to hours, which is difficult to meet the requirement of rapid refrigeration; the other method is that low-temperature compressed gas is adopted for cooling, the electronic device is directly placed into a heat-insulating low-temperature container, low-temperature compressed gas (liquid nitrogen) is input, the low-temperature container and the high-temperature superconducting electronic device are directly cooled, the required temperature can be reached in a short time, and very quick cooling can be realized, but the test work of the device cannot be carried out. At present, the best method is to place a high-temperature superconducting electronic device in a gap between a vacuum cavity and a low-temperature compressed gas cavity, so that a superconducting cooling system can be miniaturized; and the low-temperature compressed gas cavity has the effects of rapid cooling, stable work, low noise and the like.
However, when the low-temperature compressed gas is used for cooling, the liquid compressed gas continuously exchanges energy, if the low-temperature compressed gas cavity is directly connected with the outside air, when the environment or the position of the superconducting cooling system changes and the total amount of the low-temperature compressed gas in the system changes, the working temperature of the superconducting device changes, which directly causes that the superconducting device cannot work normally and has adverse phenomena of rapid frosting at an air outlet and the like, thereby affecting the stability of the system; if directly adopt traditional back pressure valve, the back pressure valve does not have this link of transduction on the one hand, is difficult to deal with the circumstances of the volume of giving vent to anger is big, a large amount of energy exchanges, causes it can not normally work, and on the other hand, the elasticity scope of back pressure valve is great, is difficult to satisfy the actual work demand. Therefore, the design and preparation of the pressure stabilizing device which has the transduction function and can be used for low-temperature compressed gas have great practical application value.
Disclosure of Invention
In view of the above, the invention provides a pressure stabilizer with transduction function for a low-temperature compressed gas cavity, which provides a guarantee for continuous and stable operation of a superconducting electronic device using the low-temperature compressed gas cavity for rapid refrigeration in a complex working environment, and solves the transduction problem of low-temperature compressed gas in different cooling stages in a superconducting cooling system.
The pressure stabilizing device with the energy conversion function for the low-temperature compressed gas cavity comprises: the method comprises the following steps: the energy converter and the voltage stabilizer are communicated through a connecting pipe;
a gas inlet on the energy converter is communicated with a gas outlet of the low-temperature compressed gas cavity, and the energy converter exchanges heat with the low-temperature compressed gas through an energy conversion sheet group arranged in the energy converter; the low-temperature compressed gas after heat exchange enters the voltage stabilizer through the connecting pipe;
the voltage stabilizer includes: a pressostat base and a pressostat upper cover; the pressostat base is provided with a gas outlet, and a gas passage A communicated with the connecting pipe and a gas passage B communicated with the gas outlet are respectively arranged on the pressostat base; a groove is formed in the lower end face of the upper cover of the barostat; the lower surface of the upper cover of the pressostat is butted with the upper surface of the base of the pressostat, a diaphragm is arranged on the butting surface of the upper cover of the pressostat, gas with set pressure is sealed in the groove on the lower end surface of the upper cover of the pressostat to be used as a pressure cavity, and the gas passage A is not communicated with the gas passage B; when the gas in the gas passage A pushes the diaphragm open, the gas passage A communicates with the gas passage B.
As a preferred embodiment of the present invention: the transducer includes: the energy converter comprises an energy converter base, an inner energy conversion sheet group, an outer energy conversion sheet group and an energy converter upper cover; the energy converter base is provided with a gas inlet of low-temperature compressed gas, an inner energy conversion sheet group is arranged in the energy converter base and is used for exchanging heat with the low-temperature compressed gas entering the energy converter base from the gas inlet; an outer energy conversion sheet group is arranged outside the inner energy conversion sheet group and used for heat exchange between the external environment and the inner energy conversion sheet group; the transducer upper cover is used for closing the top opening of the transducer base.
As a preferred embodiment of the present invention: the transducer also comprises a heater and a temperature controller which are used for carrying out thermal compensation on low-temperature compressed gas in the transducer.
As a preferred embodiment of the present invention: the pressure stabilizer also comprises a heater and a temperature controller which are used for adjusting the temperature of the gas in the pressure stabilizer.
Has the advantages that:
(1) the pressure stabilizing device can effectively solve the problem that the surface vapor pressure of low-temperature compressed gas in a rapid refrigerating system is stable in different environments, can adapt to large-range environmental temperature change and pressure change, and enables the surface vapor pressure of liquid compressed gas in a low-temperature compressed gas cavity to be stable; therefore, the continuous and stable work of the superconducting electronic device which uses the low-temperature compressed gas cavity for quick refrigeration in a complex working environment is guaranteed, and the temperature of the low-temperature compressed gas in the cavity is kept stable;
the transducer that increases has solved in the superconductive cooling system the transduction problem of low temperature compressed gas at different cooling stages for reduce the impact to stabiliser diaphragm subassembly greatly during low temperature compressed gas exhaust gas chamber, increase diaphragm life, promote stabiliser steady voltage effect, for the stabiliser provides the essential condition of steady operation, when making low temperature compressed gas exhaust gas chamber simultaneously, unfavorable phenomena such as frosting do not exist.
(2) The transducer in the invention adopts the design of the inner and outer double transducer plates, and the surface area of the transducer is greatly improved, so that the transducer can have a very high-efficiency larger air contact area and can meet the energy conversion requirement of large-volume gas.
(3) The temperature controller and the heater are arranged in the voltage stabilizer to ensure that the temperature of the diaphragm is relatively stable, and the influence caused by the reduction of low-temperature gas and the ambient temperature is reduced; the temperature controller and the heater are arranged in the transducer, so that power compensation can be provided when the temperature of low-temperature compressed gas steam is too low or the ventilation quantity is too large and in an extreme environment.
Drawings
FIG. 1 is a schematic perspective view of a voltage stabilizing and transducing device of the present invention;
fig. 2 is a schematic diagram of the internal structure of the voltage stabilizing transducer device of the invention.
Wherein: 1-transducer upper cover; 2-sealing ring; 3-external energy conversion sheet group; 4-a transducer base; 5-a gas inlet; 6-inner energy conversion sheet group; 7-temperature controller A; 8-connecting pipe; 9-a barostat base; 10-temperature controller B; 11-heater B; 12-a membrane; 13-gas outlet; 14-barostat upper cover, 15-transducer, 16-voltage stabilizer.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a voltage stabilizer with transduction function, which is used in a superconducting cooling system for cooling a high-temperature superconducting electronic device, wherein a low-temperature compressed gas cavity of the superconducting cooling system is connected with the outside air through the voltage stabilizer, so that the stability of the pressure in the low-temperature compressed gas cavity can be guaranteed, the temperature of the superconducting electronic device in a complex working environment is stable, and the superconducting electronic device can continuously and stably work.
As shown in FIG. 1, the voltage stabilizing and transducing device comprises two parts, namely a transducer 15 and a voltage stabilizer 16, which are communicated with each other through a connecting pipe 8.
As shown in fig. 2, the transducer 15 includes: a transducer base 4, an inner transducer plate 6, an outer transducer plate 3 and a transducer upper cover 1. Wherein, the lower surface of the transducer base 4 is provided with a gas inlet 5; wherein the gas inlet 5 is connected with the gas outlet of a low-temperature compressed gas cavity in the superconducting cooling system. An inner energy conversion sheet group installation groove for installing an inner energy conversion sheet group 6 is formed in the upper surface of the energy converter base 4 and corresponds to the gas inlet 5, and the inner energy conversion sheet group 6 is used for exchanging heat with low-temperature gas entering the energy converter base 4 through the gas inlet 5; the outer part of the inner energy conversion sheet group mounting groove, namely the outer circumference of the energy conversion base 4, is provided with a circle of outer energy conversion sheet group 3, and the outer energy conversion sheet group 3 is used for realizing heat exchange between the external environment and the inner energy conversion sheet group 6. The top of the transducer base 4 is covered with the transducer upper cover 1, and the butt joint surface is sealed by a sealing ring 2.
The working principle of the transducer 15 is: the low-temperature gas that superconducting cooling system's low-temperature compressed gas chamber came out gets into inside back of transducer 15 through gas access 5, carries out abundant heat exchange with interior transducing piece group 6, and interior transducing piece group 6 carries out the heat exchange through transducer base 4 with outer transducing piece group 3, and outer transducing piece group 3 is to encircleing the round mode of arranging, can make gas carry out abundant transduction.
The voltage regulator 16 includes: a pressostat base 9 and a pressostat upper cover 14; the barostat base 9 is provided with a gas outlet 13, and the barostat base 9 is respectively provided with a gas passage A communicated with the connecting pipe 8 and a gas passage B communicated with the gas outlet 13; the lower end surface of the pressostat upper cover 14 is provided with a groove, and when the pressostat upper cover 14 is arranged at the top of the pressostat base 9, a pressure cavity on the lower end surface of the pressostat upper cover 14 is communicated with the two gas passages on the upper surface of the pressostat base 9 to form a gas cabin. The abutting surface of the pressostat upper cover 14 and the pressostat base 9 is separated by the diaphragm 12, and at the moment, gas with certain pressure (about 1 standard atmospheric pressure) is sealed in the groove on the lower end surface of the pressostat upper cover 14 and serves as a pressure cavity to ensure that a low-temperature compressed gas cavity connected with the device keeps constant pressure and is not changed by environmental pressure.
The position of the gas passage B is slightly higher on the butt joint surface of the barostat upper cover 14 and the barostat base 9, so that the diaphragm 12 generates micro deformation to ensure that the diaphragm 12 covers the gas passage B to play a role in micro pressure regulation. Meanwhile, an annular groove is formed in the outer side of the position, corresponding to the pressure cavity, of the upper surface of the pressostat base 9, the height of the inner ring of the annular groove is slightly smaller than that of the outer ring of the pressostat base 9, therefore, when the pressostat upper cover 14 is butted with the pressostat base 9, the outer ring of the annular groove is firstly pressed and connected in a pressure mode under stress, and the inner ring can be supported due to uneven force received by the left side and the right side when the diaphragm 12 is pressed into the annular groove, and.
The operation principle of the voltage regulator 16 is as follows: the gas after being transduced by the transducer 15 enters the gas passage A above the barostat base 9 through the connecting pipe 8, so that the gas passage A and the pressure cavity are closed due to the gravity of the diaphragm 12, and the gas passage A and the gas passage B are not communicated; when the amount of gas is large enough, the gas pushes the membrane 12 open, so that the gas passage a communicates with the gas passage B, and the gas in the gas passage a enters the portion of the gas bin where the gas outlet is located (i.e., in the gas passage B), and then is discharged through the gas outlet 13. When the gas flows out too much and the gas pressure is lower than the gravity of the membrane 12, the membrane 12 is closed again, so as to achieve the function of constant pressure.
In order to reduce the influence on the low temperature gas and the ambient temperature, a temperature controller B10 and a heater B11 are respectively disposed on the lower surface of the barostat base 9. The gas temperature in the energy converter 15 and the voltage stabilizer 16 is adjusted by the temperature controller and the heater (the gas temperature is heated to a set value by the temperature controller), so as to deal with the influence of the air pressure and the environmental change of different sizes on the voltage stabilizing energy converter.
In order to prevent the power of the transducer 15 from being insufficient when the gas temperature is too low and the ventilation volume is too large, a temperature controller A7 and a heater A are respectively arranged at one end of the lower surface of the transducer base 4 connected with the voltage stabilizer 16 to compensate the power of the transducer.
The voltage-stabilizing energy conversion device has the following specific working process: before work, according to the test requirements of the high-temperature superconducting system and the characteristics of compressed gas, the diaphragm with proper material and weight is selected, and then stable and convenient test work can be carried out. When a superconducting cooling system is used for cooling a high-temperature superconducting electronic device, along with the realization of a cooling function, liquid compressed gas continuously exchanges energy, the superconducting electronic device is ensured to be always stabilized at the required working temperature through the principle of volatilization and heat absorption of the superconducting electronic device, the period can go through three stages, namely, the first stage is that the temperature is reduced from room temperature to a liquid nitrogen temperature zone (about 293K to 80K) which is close to a standard condition, and along with very large heat exchange, low-temperature compressed gas needs to be continuously supplemented to generate a large amount of low-temperature gas; in the second stage, the temperature of liquid nitrogen reaches the set working temperature (about 80K to 78K) of the high-temperature superconducting electronic device under the condition close to the standard, the energy exchange is slightly lower than that in the previous stage, and the temperature controller A7 and the heater A in the voltage stabilizer simultaneously work with the transducer, so that the normal and stable work of the voltage stabilizer is ensured; and in the third stage, the high-temperature superconducting device reaches the target use temperature and normally exerts power, the transduction of low-temperature compressed gas is mainly used for neutralizing the heat leakage of the system, the consumption of the low-temperature liquid gas at the moment is mainly determined by the heat leakage of the system, and the transducer can completely and independently meet the transduction requirement because the superconducting device is generally positioned in a vacuum dark room environment and has low heat leakage.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A voltage regulator device that is used for low temperature compressed gas chamber to possess transduction function, its characterized in that: the method comprises the following steps: the energy converter (15) and the voltage stabilizer (16) are communicated through a connecting pipe (8); a gas inlet (5) on the energy converter (15) is communicated with a gas outlet of the low-temperature compressed gas cavity, and the energy converter (15) exchanges heat with the low-temperature compressed gas through an energy conversion sheet group arranged in the energy converter (15); the low-temperature compressed gas after heat exchange enters the voltage stabilizer (16) through the connecting pipe (8); the voltage regulator (16) includes: a pressostat base (9) and a pressostat upper cover (14); a gas outlet (13) is formed in the pressostat base (9), and a gas passage A communicated with the connecting pipe (8) and a gas passage B communicated with the gas outlet (13) are respectively formed in the pressostat base (9); a groove is formed in the lower end face of the pressostat upper cover (14); the lower surface of the pressostat upper cover (14) is butted with the upper surface of the pressostat base (9), an annular groove is arranged on the outer side of the corresponding position of the pressure cavity on the upper surface of the pressostat base (9), and the height of the inner ring of the annular groove is smaller than that of the outer ring; a diaphragm (12) is arranged on the butt joint surface of the pressostat upper cover (14) and the pressostat base (9), at the moment, gas with set pressure is sealed in a groove on the lower end surface of the pressostat upper cover (14) to serve as a pressure cavity, and the gas passage A is not communicated with the gas passage B; when the gas in the gas passage A pushes the diaphragm (12) open, the gas passage A communicates with the gas passage B.
2. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 1, wherein: the transducer (15) comprises: the energy converter comprises an energy converter base (4), an inner energy conversion sheet group (6), an outer energy conversion sheet group (3) and an energy converter upper cover (1); the energy converter base (4) is provided with a gas inlet (5) for low-temperature compressed gas, an inner energy conversion sheet group (6) is arranged inside the energy converter base, and the inner energy conversion sheet group (6) is used for exchanging heat with the low-temperature compressed gas entering the energy converter base (4) from the gas inlet (5); an outer energy conversion sheet group (3) is arranged outside the inner energy conversion sheet group (6), and the outer energy conversion sheet group (3) is used for heat exchange between the external environment and the inner energy conversion sheet group (6); the transducer upper cover (1) is used for closing the top opening of the transducer base (4).
3. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 1 or 2, wherein: the energy converter (15) also comprises a heater and a temperature controller which are used for carrying out thermal compensation on low-temperature compressed gas in the energy converter.
4. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 1 or 2, wherein: the pressure stabilizer (16) also comprises a heater and a temperature controller for adjusting the temperature of the gas in the pressure stabilizer.
5. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 2, wherein: the transducer upper cover (1) is in sealed butt joint with the transducer base (4).
6. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 2, wherein: the energy converter base (4) is of a cylindrical structure, and a circle of outer energy conversion sheets are arranged on the outer circumferential surface of the energy converter base at intervals along the circumferential direction to form an outer energy conversion sheet group (3).
7. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 1 or 2, wherein: and a bulge is arranged on the butt joint surface of the pressostat upper cover (14) and the pressostat base (9) at the position of the gas passage B.
8. The pressure stabilizer with transduction function for a low-temperature compressed gas chamber according to claim 1 or 2, wherein: an annular groove is arranged on the outer side of the corresponding position of the pressure cavity on the upper surface of the pressostat base (9), and the inner ring of the annular groove is higher than the outer ring of the annular groove; when the diaphragm (12) is arranged on the butt joint surface of the pressostat upper cover (14) and the pressostat base (9), the diaphragm (12) on the butt joint surface of the pressostat upper cover (14) and the pressostat base (9) is pressed into the annular groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810474376.4A CN108831664B (en) | 2018-05-17 | 2018-05-17 | Pressure stabilizer with energy conversion function for low-temperature compressed gas cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810474376.4A CN108831664B (en) | 2018-05-17 | 2018-05-17 | Pressure stabilizer with energy conversion function for low-temperature compressed gas cavity |
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| CN108831664B true CN108831664B (en) | 2020-07-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0355424A (en) * | 1989-04-07 | 1991-03-11 | Yamatake Honeywell Co Ltd | Gas burner controller |
| CN2331945Y (en) * | 1998-06-11 | 1999-08-04 | 祁和益 | Heat-exchange tube having structure of increasing heat-transfer area |
| CN1512572A (en) * | 2002-12-30 | 2004-07-14 | 扬明光学股份有限公司 | Optical valve heat radiator |
| CN101142451A (en) * | 2005-03-18 | 2008-03-12 | 开利商业冷藏公司 | Transcritical refrigeration with pressure addition relief valve |
| CN100523648C (en) * | 2006-03-31 | 2009-08-05 | 株式会社电装 | Supercritical cycle and expansion valve used for refrigeration cycle |
| CN205425444U (en) * | 2016-02-19 | 2016-08-03 | 福建方明环保科技股份有限公司 | Be used for heating fluidic heat transfer energy storage equipment |
-
2018
- 2018-05-17 CN CN201810474376.4A patent/CN108831664B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0355424A (en) * | 1989-04-07 | 1991-03-11 | Yamatake Honeywell Co Ltd | Gas burner controller |
| CN2331945Y (en) * | 1998-06-11 | 1999-08-04 | 祁和益 | Heat-exchange tube having structure of increasing heat-transfer area |
| CN1512572A (en) * | 2002-12-30 | 2004-07-14 | 扬明光学股份有限公司 | Optical valve heat radiator |
| CN101142451A (en) * | 2005-03-18 | 2008-03-12 | 开利商业冷藏公司 | Transcritical refrigeration with pressure addition relief valve |
| CN100523648C (en) * | 2006-03-31 | 2009-08-05 | 株式会社电装 | Supercritical cycle and expansion valve used for refrigeration cycle |
| CN205425444U (en) * | 2016-02-19 | 2016-08-03 | 福建方明环保科技股份有限公司 | Be used for heating fluidic heat transfer energy storage equipment |
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| CN108831664A (en) | 2018-11-16 |
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