CN206077728U - A kind of quick cooling system of closed liquid nitrogen self-loopa - Google Patents
A kind of quick cooling system of closed liquid nitrogen self-loopa Download PDFInfo
- Publication number
- CN206077728U CN206077728U CN201621144615.2U CN201621144615U CN206077728U CN 206077728 U CN206077728 U CN 206077728U CN 201621144615 U CN201621144615 U CN 201621144615U CN 206077728 U CN206077728 U CN 206077728U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- electromagnetic wire
- hole
- solenoid
- central
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 330
- 239000007788 liquid Substances 0.000 title claims abstract description 168
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 165
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 239000012774 insulation material Substances 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Abstract
This utility model provides a kind of quick cooling system of closed liquid nitrogen self-loopa, including：Liquid nitrogen tank, liquid nitrogen tank are closed, filling liquid nitrogen in liquid nitrogen tank；Relief valve and outside chiller on liquid nitrogen tank, the liquid nitrogen pump and low temperature insulation material contiguous block in liquid nitrogen tank；Installed in the solenoid of low temperature insulation material contiguous block one end, the center of the electromagnetic wire in solenoid offers central through hole, the central through hole connection corresponding with the central through hole of low temperature insulation material contiguous block of electromagnetic wire；And the powered electrode on solenoid.Originally the quick cooling system of closed liquid nitrogen self-loopa is by the way of liquid nitrogen directly contact electromagnetic wire exchanges heat and forced-convection heat transfer combines, solenoid external cooling and internal heat dissipating are carried out simultaneously, greatly improve the radiating effect of electromagnetic wire, can prevent liquid nitrogen from when flowing through electromagnetic wire central through hole, causing the inherent strain of electromagnetic wire to change simultaneously, it is ensured that the service life of electromagnetic wire.
Description
Technical field
This utility model belongs to fast cooling technology field, and in particular to a kind of quick cooling system of closed liquid nitrogen self-loopa
System.
Background technology
Solenoid is usually used the type of cooling using static oil cooling at present, i.e.,：F R Oil is filled with loop sleeve,
The heat produced during by F R Oil by coil electricity spreads out of, and F R Oil remains static in loop sleeve, and heat is complete
By conducting naturally, 100 DEG C or so of equilibrium temperature is reached after stable operation, longtime running can shorten the coil longevity at this temperature
Life.
And in scientific research and military project application, based on the needs for producing high-intensity magnetic field, a kind of commonly used pulsed high power
Solenoid, up to several megawatts even tens of megawatts of each pulse power, these energy major parts are converted to used heat, by static state
The type of cooling of oil cooling is not enough to quickly cool down solenoid, is to ensure that solenoid is normally used, needs to immerse work in liquid nitrogen
Make, in the hope of reducing resistance and quick heat radiating, but as wire external layer has insulating batt, after a pulse power is loaded,
Heat conduction and liquid nitrogen heat transfer free convection are only relied on, generally requiring dozens of minutes reduces just can solenoid to the time of a few houres
To liquid nitrogen temperature, power loading next time can be just carried out, this greatly reduces the efficiency of equipment operation, be unfavorable for that equipment high efficiency is transported
OK.
The quick cooling system of open type liquid nitrogen self-loopa was also adopted by the market at present, i.e. liquid nitrogen tank is communicated with air, this
When liquid nitrogen tank in liquid nitrogen under the atmospheric pressure, liquid nitrogen saturation temperature is 77K, and liquid nitrogen of the liquid nitrogen pump by saturation temperature for 77K adds
Pressure is pumped through the electromagnetic wire central through hole for generating heat, by heat convection mode, the heat that will be produced inside solenoid
Quickly take out of, so as to greatly improve the radiating effect of electromagnetic wire.But as liquid nitrogen easily gasifies under atmospheric pressure, work as liquid nitrogen
Flow into from the arrival end of electromagnetic wire central through hole and when the port of export outflow of electromagnetic wire central through hole, easily produce phase
Become, the inherent strain of electromagnetic wire in liquid nitrogen phase transition process, can be caused to change, with the prolongation of electromagnetic wire working time,
The self-strength of electromagnetic wire can be caused to die down, electromagnetic wire when serious, can be caused to rupture, so as to shorten the use of electromagnetic wire
Life-span.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of fast quickly cooling of closed liquid nitrogen self-loopa
But system, the mode that the system is combined using the heat exchange of liquid nitrogen directly contact electromagnetic wire and forced-convection heat transfer, so as to significantly
The radiating effect of electromagnetic wire is improved, within two subpulse load times interval being reduced to more than ten minutes by a few houres, greatly
The service efficiency of solenoid is improve greatly, while adopting closed liquid nitrogen tank, prevents liquid nitrogen from flowing through electromagnetism in a high voltage state
Cause the inherent strain of electromagnetic wire to change during wire center through hole, and then ensure the service life of electromagnetic wire.
To realize above-mentioned technical proposal, this utility model provides a kind of quick cooling system of closed liquid nitrogen self-loopa,
Including：Liquid nitrogen tank, the liquid nitrogen tank are sealing liquid nitrogen tank, filling liquid nitrogen in liquid nitrogen tank；Relief valve on liquid nitrogen tank, institute
Relief valve is stated for maintaining liquid nitrogen tank stably under a constant；Outside chiller on liquid nitrogen tank；Installed in liquid
Liquid nitrogen pump in nitrogen groove or outside liquid nitrogen tank；Connect in liquid nitrogen tank and by the low temperature insulation material of liquid nitrogen thorough impregnation
Block, the low temperature insulation material contiguous block center offer through hole, and one end of the through hole is connected with the delivery outlet of liquid nitrogen pump；Peace
The solenoid of low temperature insulation material contiguous block one end is mounted in, the solenoid is circular or square electromagnetism by sectional area
Wire spirals and forms, and the center of the electromagnetic wire offers central through hole, and the central through hole of the electromagnetic wire is exhausted with low temperature
The central through hole correspondence of edge material contiguous block connects；And the powered electrode on solenoid.
In above-mentioned technical proposal, solenoid produces high-intensity magnetic field after powered electrode energization, due to producing high-intensity magnetic field
During can supervene the pulse of up to several megawatts even tens of megawatts of power, cause solenoid to produce amount of heat,
In order to ensure the heat that solenoid is produced disperses in time, originally the quick cooling system of closed liquid nitrogen self-loopa adopts dual cooling
Mode, first by solenoid is immersed in liquid nitrogen, the heat that solenoid surface produces is led to by low temperature liquid nitrogen
Cross the mode Quick diffusing of direct contact heat transfer, but due to the heat inside the electromagnetic wire of solenoid can not timely to
Outer transmission, although the heat that electromagnetic wire surface produces is taken away in time, but due to electromagnetic wire internal heat transmission speed
Cross slow, it will postpone the rate of heat dispation of whole solenoid, be to solve this problem, originally the quick cooling system of closed liquid nitrogen self-loopa
Then system injects the liquid nitrogen of flowing in central through hole using central through hole is opened up at electromagnetic wire center, by the liquid for flowing
Nitrogen fast speed belt walks the huge heat of the generation inside electromagnetic wire, by way of external cooling and internal heat dissipating are carried out simultaneously,
Fast speed belt walks the huge heat of solenoid generation, so as to greatly improve the radiating effect of electromagnetic wire, can add two subpulses
Within load time interval is reduced to more than ten minutes, the service efficiency of solenoid is substantially increased.
It is in order to prevent liquid nitrogen phase transformation vaporization during heat exchange in this technical scheme, special that liquid nitrogen tank is set to into what is sealed
Liquid nitrogen tank, remains constant under the atmospheric pressure in groove by relief valve, by outside chiller by saturation shape in groove
Temperature 65K near the freezing point of state liquid nitrogen cooling, by Adjustable calculation thermic load, adjusts flow, it is ensured that liquid nitrogen is by electricity
Magnetic coil is only warmed up near saturation temperature 77k, and is not undergone phase transition consequently, it is possible to liquid nitrogen is not sent out when being exchanged heat with solenoid
Raw phase transformation only carries out heat loss through convection.Maintain liquid nitrogen tank in pressure it is constant, by outside chiller will after heat exchange temperature liter
High liquid nitrogen is cooled to 65K, and the electromagnetic wire center that the liquid nitrogen that temperature is 65K pressurizes or is pumped through generating heat is led to by liquid nitrogen pump
Hole, by heat convection mode, the heat produced inside solenoid is quickly taken out of, so as to greatly improve dissipating for electromagnetic wire
Thermal effect.When the port of export of the liquid nitrogen from the arrival end inflow of electromagnetic wire central through hole and from electromagnetic wire central through hole flows out
When, liquid is remained without undergoing phase transition, so as to prevent liquid nitrogen from causing electromagnetic wire when flowing through electromagnetic wire central through hole
Inherent strain change, and then ensure electromagnetic wire service life.
Preferably, the low temperature insulation material contiguous block includes connecting block body, and the contiguous block body central arranges logical
Hole, connection block body or so two ends are respectively arranged with adpting flange fixing hole, and adpting flange is fixed by screws in adpting flange
On fixing hole, the adpting flange of left end is connected for the delivery outlet with liquid nitrogen pump, and the adpting flange of right-hand member is used for and solenoid
Connection.First, insulation connection must be carried out between solenoid and the transfer pipeline of liquid nitrogen pump, otherwise easily causes safe thing
Therefore；Secondly as the central through hole on electromagnetic wire is less, therefore is passed through larger flow liquid nitrogen, liquid nitrogen pump pressure is larger, it is easy to
Cause the rupture of transfer pipeline, it is therefore desirable to consider the low temperature resistance to pressure of connecting line.Low temperature insulation material contiguous block is set
Purpose is exactly in order to insulation connection will be carried out between solenoid and the transfer pipeline of liquid nitrogen pump, while by low-temperature insulation material
A larger through hole of sectional area is opened up in material contiguous block, when liquid nitrogen pump injects larger flow liquid nitrogen to solenoid,
Play a part of buffering pump pressure, play a part of to prevent transfer pipeline from rupturing.
Preferably, the connection block body is polyimide resin block or ceramics, polyimide resin block or ceramics
It is respectively provided with excellent low-temperature insulation, and self-strength is high, can still keeps higher from stiffness of the body at a higher pressure
Degree.
Preferably, the sectional area of the central through hole that the electromagnetic wire center opens up with the ratio of the sectional area of electromagnetic wire is
1:2～1:4.The sectional area of electromagnetic wire central through hole is unsuitable excessive, can otherwise cause the wall thickness of electromagnetic wire excessively thin, larger
Liquid nitrogen is injected under pressure, electromagnetic wire can be caused to rupture；The sectional area of electromagnetic wire central through hole is also unsuitable too small simultaneously, otherwise
Liquid nitrogen injection is difficult, does not reach the purpose for taking away electromagnetic wire internal heat in time.The principle that electromagnetic wire central through hole is arranged
It is：In the case where electromagnetic wire intensity is ensured, expand the sectional area of central through hole as far as possible.Through experimental results demonstrate,
The ratio of the sectional area and the sectional area of electromagnetic wire of the central through hole opened up when electromagnetic wire center is 1:2～1:When 4, you can protect
Card electromagnetic wire intensity, again can fast speed belt walk the heat inside electromagnetic wire.
The quick cooling system of a kind of closed liquid nitrogen self-loopa and its beneficial effect of dyeing and finishing method that this utility model is provided
It is really：
(1) the quick cooling system of this closed liquid nitrogen self-loopa using forced convertion and directly contact cooling combine it is cold
But mode, solenoid external cooling and internal heat dissipating are while carry out, cooling effectiveness is than original only by solenoid submergence
In liquid nitrogen, several times are higher by by the efficiency of free convection cooling, can be reduced to 15 points by original two hours cool time
Clock, pulse loading frequency can improve octuple, substantially increase the service efficiency of equipment；
(2) the quick cooling system of the closed liquid nitrogen self-loopa of sheet, low temperature environment working medium adopt liquid with cooling cycle fluid
Nitrogen, greatly improve the effective utilization of liquid nitrogen, and liquid nitrogen self-loopa in a cooling system, it is to avoid can be in electromagnetism using other working medium
Occurs the stifled problem of ice in wire center hole, working medium compatibility is good；
(3) originally the quick cooling system of closed liquid nitrogen self-loopa both can be by electromagnetism by arranging low temperature insulation material contiguous block
Insulation connection is carried out between coil and the transfer pipeline of liquid nitrogen pump, it is ensured that system operation safety, again can be by low-temperature insulation material
A larger through hole of sectional area is opened up in material contiguous block, when liquid nitrogen pump injects larger flow liquid nitrogen to solenoid,
Play a part of buffering pump pressure, play a part of to prevent transfer pipeline from rupturing.
(4) originally the quick cooling system of closed liquid nitrogen self-loopa is run in high-pressure sealed environment, when liquid nitrogen is from electromagnetism
When the arrival end of wire center through hole is flowed into and the port of export from electromagnetic wire central through hole flows out, remain liquid without
Undergo phase transition, so as to prevent liquid nitrogen from causing the inherent strain of electromagnetic wire to change when flowing through electromagnetic wire central through hole, enter
And ensure the service life of electromagnetic wire.
Description of the drawings
Fig. 1 is structure connection diagram of the present utility model.
Fig. 2 is the structural representation of solenoid in this utility model.
Fig. 3 is the structural representation of low temperature insulation material contiguous block in this utility model.
In figure：1st, liquid nitrogen tank；2nd, low temperature insulation material contiguous block；21st, connect block body；22nd, through hole；23rd, flange；24、
Screw；3rd, powered electrode；4th, solenoid；41st, electromagnetic wire；42nd, central through hole；5th, liquid nitrogen；6th, liquid nitrogen pump；7th, outside cooling
Device；8th, relief valve.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.The every other embodiment obtained under the premise of creative work is not made by this area ordinary person, belongs to
Protection domain of the present utility model.
Embodiment：A kind of quick cooling system of closed liquid nitrogen self-loopa.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, a kind of quick cooling system of closed liquid nitrogen self-loopa, including：Liquid nitrogen tank 1, institute
Liquid nitrogen tank 1 is stated for sealing liquid nitrogen tank, filling liquid nitrogen 5 in liquid nitrogen tank 1；Relief valve 8 on lower liquid nitrogen tank 1, the relief valve 8 are installed
For maintaining pressure in liquid nitrogen tank 1 constant all the time at one atm；Outside chiller 7 on liquid nitrogen tank 1, outward
Portion's chiller 7 can be very fast fridge, and the effect of the outside chiller 7 is by the elevated liquid of temperature after heat exchange
Nitrogen 5 is cooled to 65K；Liquid nitrogen pump 6 in liquid nitrogen tank 1 or outside liquid nitrogen tank 1；It is in liquid nitrogen tank and complete by liquid nitrogen
The low temperature insulation material contiguous block 2 of full dipping, 2 center of low temperature insulation material contiguous block offers through hole 22, the through hole
22 one end is connected with the delivery outlet of liquid nitrogen pump 6；Installed in the solenoid 4 of 2 one end of low temperature insulation material contiguous block, the electricity
Magnetic coil 4 is that circular or square electromagnetic wire 41 spirals and forms by sectional area, and the center of the electromagnetic wire 41 offers
Central through hole 42, the connection corresponding with the central through hole 22 of low temperature insulation material contiguous block 2 of the central through hole 42 of the electromagnetic wire,
And 22 diameter of central through hole of low temperature insulation material contiguous block 2 is greater than the diameter of 41 central through hole 42 of electromagnetic wire；And peace
The powered electrode 3 being mounted on solenoid 4.
The operation logic of the present embodiment is as follows：Solenoid 4 produces high-intensity magnetic field after the energization of powered electrode 3, due to
The pulse of up to several megawatts even tens of megawatts of power can be supervened during producing high-intensity magnetic field, causes solenoid 4 to produce
Amount of heat is given birth to, in order to ensure the heat that solenoid 4 is produced disperses in time, the quick cooling system of the closed liquid nitrogen self-loopa of sheet
By the way of dual cooling, first by solenoid 4 is immersed in liquid nitrogen 5, by low temperature liquid nitrogen 5 by solenoid 4
The heat that surface produces Quick diffusing by way of direct contact heat transfer, but due in electromagnetic wire 41 in solenoid 4
The heat in portion timely outwards can not be transmitted, although the heat that 41 surface of electromagnetic wire produces is taken away in time, but due to electricity
41 internal heat transmission speed of magnetic wire is excessively slow, it will postpone the rate of heat dispation of whole solenoid 4, is to solve this problem, this
The quick cooling system of closed liquid nitrogen self-loopa opens up central through hole 42 using at 41 center of electromagnetic wire, then by liquid nitrogen pump
6 liquid nitrogen 5 that flowing is injected in central through hole 42, walk the product inside electromagnetic wire 41 by 5 fast speed belt of liquid nitrogen of forced convertion
Raw huge heat, by way of external cooling and internal heat dissipating are carried out simultaneously, fast speed belt walks the huge of the generation of solenoid 4
Heat, so as to greatly improve the radiating effect of solenoid 4, can by two subpulse load times interval be reduced to more than ten minutes with
It is interior, substantially increase the service efficiency of solenoid 4.Simultaneously because low temperature in the quick cooling system of the closed liquid nitrogen self-loopa of sheet
Environment working medium adopts liquid nitrogen 5 with cooling cycle fluid, greatly improves the effective utilization of liquid nitrogen 5, and liquid nitrogen 5 is in a cooling system
Self-loopa is realized by liquid nitrogen pump 6, it is to avoid ice can occur in 41 central through hole 42 of electromagnetic wire using other working medium and block up
Problem, working medium compatibility is good.
In order to prevent the phase transformation vaporization during heat exchange of liquid nitrogen 5, the special liquid nitrogen tank 1 for being set to seal by liquid nitrogen tank 1 from leading to
It is 108K in 13.2MPa, now 5 saturation temperature of corresponding liquid nitrogen to cross pressurized equipment and make pressure in liquid nitrogen tank 1, due to liquid nitrogen 5
Saturation temperature raise, consequently, it is possible to liquid nitrogen 5 is not undergone phase transition when exchange heat with solenoid 4 only carries out heat loss through convection. maintenance
In liquid nitrogen tank 1, pressure is constant, will be cooled to 65K, liquid nitrogen by the elevated liquid nitrogen of temperature 5 by outside chiller 7 after heat exchange
Temperature is pressurizeed for the liquid nitrogen 5 of 65K or is pumped through 41 central through hole 42 of electromagnetic wire for generating heat by pump 6, by heat convection side
Formula, the heat produced inside solenoid 4 is quickly taken out of, so as to greatly improve the radiating effect of electromagnetic wire 41.When liquid nitrogen 5
Flow into from the arrival end of 41 central through hole 42 of electromagnetic wire and when the port of export outflow of 41 central through hole 42 of electromagnetic wire, all the time
Liquid is kept without undergoing phase transition, so as to prevent liquid nitrogen 5 from electromagnetic wire 41 is caused when flowing through 41 central through hole 42 of electromagnetic wire
Inherent strain change, and then ensure electromagnetic wire 41 service life.
With reference to shown in Fig. 2 and Fig. 3, need to arrange insulated connecting device, real feelings between liquid nitrogen pump 6 and solenoid 4
As the central through hole on solenoid 4 is less in condition, therefore when being passed through larger flow liquid nitrogen 5, the pump pressure of liquid nitrogen pump 6 is very big,
Therefore the low temperature resistance to pressure requirement to connecting line is high, increased the difficulty of system operation to a certain extent, in order to solve
This problem, the quick cooling system of the closed liquid nitrogen self-loopa of sheet arrange low temperature insulation material between liquid nitrogen pump 6 and solenoid 4
Contiguous block 2, specific connected mode is as shown in Fig. 2 the low temperature insulation material contiguous block 2 includes connecting block body 21, connection
Block body 21 is low temperature resistant ceramic material, and ceramics are respectively provided with excellent low-temperature insulation, and self-strength is high, in higher pressure
Higher self-strength can be still kept under power；The connection 21 centrally disposed through hole 22 of block body, connection block body 21 are left
Right two ends are respectively arranged with adpting flange fixing hole, and adpting flange 23 is fixed on adpting flange fixing hole by screw 24, left
, for being connected with the delivery outlet of liquid nitrogen pump 6, the adpting flange 23 of right-hand member is for being connected with solenoid 4 for the adpting flange 23 at end.
Firstly, since insulation connection must be carried out between the transfer pipeline of solenoid 4 and liquid nitrogen pump 6, otherwise easily cause safe thing
Therefore, will carry out insulating connection between the transfer pipeline of solenoid 4 and liquid nitrogen pump 6 by low temperature insulation material contiguous block 2 can be with
The safe operation of safeguards system；Secondly as 42 diameter of central through hole on electromagnetic wire 41 is less, therefore it is passed through larger flow
During liquid nitrogen 5, the pump pressure of liquid nitrogen pump 6 is very big, it is easy to cause the rupture of transfer pipeline, in order to prevent transfer pipeline from rupturing, low
Warm 2 center of insulant contiguous block opens up a larger through hole of sectional area 22, injects larger to solenoid 4 in liquid nitrogen pump 6
When flow liquid nitrogen 5, play a part of buffering pump pressure, so as to prevent transfer pipeline from rupturing, system operation is reduced to delivery pipe
The requirement on road.
As ceramics are respectively provided with excellent low-temperature insulation, and self-strength is high, still can at a higher pressure
Keep higher self-strength.In order to ensure the Effec-tive Function of system, ceramics are selected in the present embodiment as connection block body 21
Making material.
In the present embodiment, the sectional area of the central through hole 42 that 41 center of the electromagnetic wire opens up is cut with electromagnetic wire 41
Area ratio is 1:3, the sectional area of electromagnetic wire 41 is 30mm2, the section of the central through hole 42 that 41 center of electromagnetic wire opens up
Product is 10mm2.The sectional area of 41 central through hole 42 of electromagnetic wire is unsuitable excessive, can otherwise cause the wall thickness mistake of electromagnetic wire 41
It is thin, liquid nitrogen 5 is injected under larger pressure, electromagnetic wire 41 can be caused to rupture；While the section of 41 central through hole 42 of electromagnetic wire
Product is also unsuitable too small, and otherwise liquid nitrogen 5 injects difficulty, does not reach the purpose for taking away 41 internal heat of electromagnetic wire in time.Electromagnetism is led
41 central through hole of line 42 arrange principle be：In the case where 41 intensity of electromagnetic wire is ensured, expand central through hole as far as possible
42 sectional area.Through experimental results demonstrate, the sectional area of the central through hole 42 opened up when 41 center of electromagnetic wire is led with electromagnetism
The ratio of the sectional area of line 41 is 1:When 3, you can ensure electromagnetic wire 41 intensity, again can fast speed belt walk inside electromagnetic wire 41
Heat.
The above be preferred embodiment of the present utility model, but this utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, thus it is every without departing from the equivalent or modification completed under spirit disclosed in the utility model, all fall
Enter the scope of this utility model protection.
Claims (4)
1. the quick cooling system of a kind of closed liquid nitrogen self-loopa, it is characterised in that include：
Liquid nitrogen tank, the liquid nitrogen tank are sealing liquid nitrogen tank, filling liquid nitrogen in liquid nitrogen tank；
Relief valve on liquid nitrogen tank, the relief valve are used to maintain liquid nitrogen tank stably under a constant；
Outside chiller on liquid nitrogen tank；
Liquid nitrogen pump in liquid nitrogen tank or outside liquid nitrogen tank；
In liquid nitrogen tank and by the low temperature insulation material contiguous block of liquid nitrogen thorough impregnation, the low temperature insulation material connection
Block center offers through hole, and one end of the through hole is connected with the delivery outlet of liquid nitrogen pump；
Installed in the solenoid of low temperature insulation material contiguous block one end, the solenoid is circular or square by sectional area
Electromagnetic wire spiral and form, the center of the electromagnetic wire offers central through hole, the central through hole of the electromagnetic wire with
The central through hole correspondence of low temperature insulation material contiguous block connects；And
Powered electrode on solenoid.
2. the quick cooling system of closed liquid nitrogen self-loopa as claimed in claim 1, it is characterised in that：The low-temperature insulation material
Material contiguous block includes connecting block body, and the contiguous block body central arranges through hole, connection block body or so two ends and is respectively provided with
Have adpting flange fixing hole, adpting flange is fixed by screws on adpting flange fixing hole, the adpting flange of left end for
The delivery outlet connection of liquid nitrogen pump, the adpting flange of right-hand member is for being connected with solenoid.
3. the quick cooling system of closed liquid nitrogen self-loopa as claimed in claim 2, it is characterised in that：The connection block body
For polyimide resin block or ceramics.
4. the quick cooling system of closed liquid nitrogen self-loopa as claimed in claim 1, it is characterised in that：In the electromagnetic wire
The sectional area of the central through hole that the heart is opened up is 1 with the ratio of the sectional area of electromagnetic wire:2～1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144615.2U CN206077728U (en) | 2016-10-21 | 2016-10-21 | A kind of quick cooling system of closed liquid nitrogen self-loopa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144615.2U CN206077728U (en) | 2016-10-21 | 2016-10-21 | A kind of quick cooling system of closed liquid nitrogen self-loopa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077728U true CN206077728U (en) | 2017-04-05 |
Family
ID=58442974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144615.2U Active CN206077728U (en) | 2016-10-21 | 2016-10-21 | A kind of quick cooling system of closed liquid nitrogen self-loopa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455178A (en) * | 2016-10-21 | 2017-02-22 | 广东合新材料研究院有限公司 | Closed liquid nitrogen self-circulation rapid cooling system |
-
2016
- 2016-10-21 CN CN201621144615.2U patent/CN206077728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455178A (en) * | 2016-10-21 | 2017-02-22 | 广东合新材料研究院有限公司 | Closed liquid nitrogen self-circulation rapid cooling system |
| CN106455178B (en) * | 2016-10-21 | 2019-04-19 | 广东合一新材料研究院有限公司 | A kind of closed liquid nitrogen self-loopa rapid cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106455436A (en) | Open-type liquid-nitrogen self-circulation rapid cooling system | |
| CN103985499B (en) | High-temperature superconducting magnet liquid nitrogen zero evaporative cooling system | |
| CN206100523U (en) | Open -type liquid nitrogen self -loopa rapid cooling system | |
| CN105208837A (en) | Staggered micro-channel heat sinking device based on sealed micro jet | |
| CN112259318B (en) | High-temperature superconducting motor rotor cryogenic cooling system utilizing liquid hydrogen | |
| CN101738036B (en) | Water chilling unit with self freeze-proofing function | |
| CN206077728U (en) | A kind of quick cooling system of closed liquid nitrogen self-loopa | |
| CN106455178A (en) | Closed liquid nitrogen self-circulation rapid cooling system | |
| CN204374140U (en) | A kind of constant temperature cooling tank for vertical electrophoresis system | |
| CN209515366U (en) | A kind of superconducting magnet rapid cooling system | |
| CN105275662B (en) | A kind of closed circulation system suitable for Aero-Space engine | |
| CN211346004U (en) | Superconducting magnetic suspension thermostat | |
| CN109733573B (en) | Phase change buoyancy adjusting device utilizing reactor waste heat | |
| CN204273890U (en) | A kind of heating and cooling waterbed mattress | |
| CN107527703A (en) | A kind of magnet forced convertion liquid cooling method and its cooling system | |
| CN107152608A (en) | A kind of supercharging explosion-protection equipment certainly gasified for cryogenic liquid | |
| CN202229500U (en) | Compressor-free refrigerator | |
| CN104406329A (en) | Flowing phase-change energy storing type falling-film evaporating heat pump unit | |
| CN102945732B (en) | A kind of distributed pulse power source reactor cooling means and system thereof | |
| CN205297703U (en) | Vehicle-mounted pulsating heat pipe thermoelectric conversion system applied to automobile exhaust waste heat recovery | |
| CN114152013A (en) | Movable type hydrate phase change microcapsule cold accumulation system | |
| CN209977993U (en) | Single-tank molten salt heat storage device | |
| CN202719804U (en) | Supercooled water continuous preparing device | |
| CN207935600U (en) | oil temperature control pipeline | |
| CN207611842U (en) | Battery pack heat management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240722 Granted publication date: 20170405 |