CN107576124A - A kind of low-temperature circulating system - Google Patents
A kind of low-temperature circulating system Download PDFInfo
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- CN107576124A CN107576124A CN201710702927.3A CN201710702927A CN107576124A CN 107576124 A CN107576124 A CN 107576124A CN 201710702927 A CN201710702927 A CN 201710702927A CN 107576124 A CN107576124 A CN 107576124A
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- valve
- heat exchanger
- booster jar
- refrigerating medium
- refrigerating
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Abstract
Low-temperature circulating system provided by the invention, including kind of refrigeration cycle module, refrigerating loop module and control module, the refrigerating loop module include：First booster jar, the first valve, the second valve, the 3rd valve, the 4th valve, First Heat Exchanger, the 5th valve, the second heat exchanger, the 6th valve and the second booster jar；The kind of refrigeration cycle module is through the 5th valve connection and the First Heat Exchanger；The control module is connected to first booster jar, second booster jar, first valve, second valve, 3rd valve and the 4th valve, low-temperature circulating system provided by the invention, the control module realizes the refrigerating medium circulating between first booster jar and the second booster jar by first booster jar and the second supercharging pressure tank for controlling booster jar, by adjusting different refrigerating mediums, the cryogenic refrigeration circulation of less than 60 DEG C warm areas can be achieved, low-temperature circulating system provided by the invention, the warm area can be avoided and owe reliable low discharge low-temperature circulating pump, the movement-less part of refrigerating circulation simultaneously, with energy-conservation, the characteristics of operating steadily.
Description
Technical field
The present invention relates to refrigeration and field of energy-saving technology, more particularly to a kind of low-temperature circulating system.
Background technology
The fields such as scientific research, medical treatment and industrial production, often there is the demand that refrigeration is realized by refrigerating medium.Such as in some low temperature hands
In art, often need to carry out organ or tissue topical hypothermia's processing (even up to -60~-100 DEG C), refrigeration machine shakes due to existing
Dynamic big, the defects of be inconvenient to move and be difficult to quickly cool down using rigid element, it is therefore desirable to the technical scheme that refrigerating circulates.
However, current conditions are in less than -60 DEG C warm areas, lack reliable, commercialized low discharge circulating pump, and led in natural gas liquefaction
Immersed pump that domain generally uses, plunger pump etc. are difficult to minimize.Therefore, need the reliable new refrigerating circularly cooling system of exploitation badly
System.
The content of the invention
Have in view of that, it is necessary to the defects of existing for prior art, there is provided a kind of low-temperature circulating system without pump.
To achieve the above object, the present invention uses following technical proposals：
A kind of low-temperature circulating system, including kind of refrigeration cycle module, refrigerating loop module and control module；The refrigerating circulation
Module includes：First booster jar, the first valve, the second valve, the 3rd valve, the 4th valve, First Heat Exchanger, the 5th valve,
Second heat exchanger, the 6th valve and the second booster jar；The kind of refrigeration cycle module is through the 5th valve connection and described first
Heat exchanger；The control module is connected to first booster jar, the second booster jar, the first valve, the second valve, the 3rd valve
And the 4th valve；Wherein：
Refrigerating medium enters the First Heat Exchanger by the liquid outlet of first booster jar through first valve
Refrigerating medium first flow entrance, then enter described the through the 6th valve by the outlet of the first flow of the First Heat Exchanger
The refrigerating medium entrance of two heat exchangers, then the refrigerating for the refrigerating medium outlet entrance First Heat Exchanger for passing through second heat exchanger
Agent second flow channel entrance, then exported by the refrigerating medium second flow channel of the First Heat Exchanger through described in the 3rd valve entrance
The liquid inlet of second booster jar；
Refrigerating medium also enters the First Heat Exchanger by the liquid outlet of second booster jar through second valve
Refrigerating medium first flow entrance, then described in being entered through the 6th valve by the outlet of the first flow of the First Heat Exchanger
The refrigerating medium entrance of second heat exchanger, then the load for the refrigerating medium outlet entrance First Heat Exchanger for passing through second heat exchanger
Cryogen second flow channel entrance, then institute is entered through the 4th valve by the refrigerating medium second flow channel outlet of the First Heat Exchanger
State the liquid inlet of the first booster jar；
The liquid outlet of first booster jar is also simultaneously liquid inlet, and the liquid outlet of second booster jar is simultaneously
Also it is liquid inlet.
In some preferred embodiments, the kind of refrigeration cycle module is liquid nitrogen vaporization refrigeration, gas throttling refrigeration, Si Te
One kind in woods refrigeration and pulse tube refrigeration.
In some preferred embodiments, the pipe effluent of the pipeline of the kind of refrigeration cycle module from the First Heat Exchanger
Dynamic, the first flow of the refrigerating medium flows from the pipe side of the First Heat Exchanger, and the second flow channel of the refrigerating medium is from first
The pipe side flowing of heat exchanger.
In some preferred embodiments, the shell-side stream of the pipeline of the kind of refrigeration cycle module from the First Heat Exchanger
Dynamic, the second flow channel of the first flow of the refrigerating medium and the refrigerating medium flows from the pipe side of the First Heat Exchanger.
In some preferred embodiments, the pipe effluent of the pipeline of the kind of refrigeration cycle module from the First Heat Exchanger
Dynamic, the first flow of the refrigerating medium flows from the pipe side of the First Heat Exchanger, and the second flow channel of the refrigerating medium is from described
The pipe side flowing of First Heat Exchanger.
In some preferred embodiments, the kind of refrigeration cycle module includes the environment of liquid nitrogen container and the connection liquid nitrogen container
Unit, the environment unit are formed in parallel by some refrigeration valves and with the resistance element that the refrigeration valve is connected, the environment
Unit is connected to the First Heat Exchanger through the 5th valve.
In some preferred embodiments, cool storage material, described cool storage material are filled with described First Heat Exchanger
For phase-change material for cold storage or non-phase-change material for cold storage, the phase-change material for cold storage is solid-liquid phase change material of the freezing point in required warm area
Material, the non-phase-change material for cold storage is stainless steel plate or aluminium sheet.
In some preferred embodiments, first booster jar and the second supercharging jar structure are identical, and described first increases
Pressure tank and the second booster jar use helium supercharging mode.
In some preferred embodiments, the control module is connected to the helium of first booster jar and the second booster jar
Gas inlet valve, the control module is by controlling first booster jar and the second supercharging pressure tank to realize the refrigerating medium in institute
State circulating between the first booster jar and the second booster jar.
The present invention the advantages of using above-mentioned technical proposal is：
Low-temperature circulating system provided by the invention, including kind of refrigeration cycle module, refrigerating loop module and control module, it is described
Refrigerating loop module includes：First booster jar, the first valve, the second valve, the 3rd valve, the 4th valve, First Heat Exchanger,
Five valves, the second heat exchanger, the 6th valve and the second booster jar；The kind of refrigeration cycle module is connected through the 5th valve and institute
State First Heat Exchanger；The control module is connected to first booster jar, the second booster jar, the first valve, the second valve,
Three valves and the 4th valve, low-temperature circulating system provided by the invention, the control module is by controlling described the of booster jar
One booster jar and the second supercharging pressure tank realize circulation of the refrigerating medium between first booster jar and the second booster jar
Flowing, by adjusting different refrigerating mediums, the cryogenic refrigeration circulation of less than -60 DEG C warm areas, low temperature provided by the invention can be achieved
The circulatory system, the warm area can be avoided and owe reliable low discharge low-temperature circulating pump, while refrigerating circulation movement-less part, there is section
The characteristics of, operating steadily.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of low-temperature circulating system provided in an embodiment of the present invention.
Fig. 2 is the structural representation for the First Heat Exchanger (HX1) that a preferred embodiment of the present invention provides.
Fig. 3 is the structural representation for the First Heat Exchanger (HX1) that another preferred embodiment of the present invention provides.
Fig. 4 is the structural representation for the kind of refrigeration cycle module that a preferred embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, low-temperature circulating system 10 provided by the invention, including kind of refrigeration cycle module 100, refrigerating loop module
(R) 200 and control module (C) 300.The refrigerating loop module 200 includes：The valve of first booster jar (PV1) 211, first
(V1) the 212, second valve (V2) 213, the 3rd valve (V3) 214, the 4th valve (V4) 215, First Heat Exchanger (HX1) 216,
The 217, second heat exchanger of five valves (V5) (HX2) the 218, the 6th 219, second booster jar of valve (V6) (PV2) 220.The refrigeration
Loop module 100 is through the 5th valve (V5) 217 connection and First Heat Exchanger (HX1) 216.The control module 300 connects
In 212, second valve of the 220, first valve of the 211, second booster jar of the first booster jar (PV1) (PV2) (V1) (V2) 213,
The valve (V4) 215 of 3rd valve (V3) the 214, the 4th.
Specifically, refrigerating medium by the liquid outlet of first booster jar (PV1) 211 through first valve (V1)
212 enter the refrigerating medium first flow entrance of the First Heat Exchanger (HX1) 216, then pass through the First Heat Exchanger (HX1)
216 first flow outlet enters the refrigerating medium entrance of second heat exchanger (HX2) 218 through the 6th valve (V6) 219,
Enter the refrigerating medium the of the First Heat Exchanger (HX1) 216 by the outlet of the refrigerating medium of second heat exchanger (HX2) 218 again
Two flow channel entry points, then exported by the refrigerating medium second flow channel of the First Heat Exchanger (HX1) 216 through the 3rd valve (V3)
214 enter the liquid inlet of second booster jar (PV2) 220.
Refrigerating medium is also entered by the liquid outlet of second booster jar (PV2) 220 through second valve (V2) 213
The refrigerating medium first flow entrance of the First Heat Exchanger (HX1) 216, then first by the First Heat Exchanger (HX1) 216
Runner exit enters the refrigerating medium entrance of second heat exchanger through the 6th valve (V6) 219, then is changed by described second
The refrigerating medium outlet of hot device (HX2) 218 enters the refrigerating medium second flow channel entrance of the First Heat Exchanger (HX1) 216, then passes through
The refrigerating medium second flow channel outlet of the First Heat Exchanger (HX1) 216 enters described first through the 4th valve (V4) 215 and increased
Press the liquid inlet of tank (PV1) 211.
It is appreciated that the liquid outlet of first booster jar (PV1) 211 is also simultaneously liquid inlet, described second increases
The liquid outlet for pressing tank (PV2) 220 is also simultaneously liquid inlet.
, specifically can be with it is appreciated that described refrigerating medium be not using producing the pure matter or mixture of solid using warm area
For at least one of ethanol, methane, ethane, propane.It is appreciated that in practice, above-mentioned refrigerating medium is not limited to above-mentioned load
Cryogen, those skilled in the art can also select other suitable refrigerating mediums according to the target temperature of low temperature.Referring again to Fig. 1,
The structural representation of the First Heat Exchanger (HX1) 216 provided for a preferred embodiment of the present invention is provided.
Specifically, the pipeline of the kind of refrigeration cycle module 100 flows from the pipe side of the First Heat Exchanger (HX1) 216, institute
State the first flow of refrigerating medium to flow from the pipe side of the First Heat Exchanger (HX1) 216, the second flow channel of the refrigerating medium is from the
The pipe side flowing of one heat exchanger (HX1) 216.
Referring to Fig. 2, the structural representation of the First Heat Exchanger (HX1) 216 provided for another preferred embodiment of the present invention.
Specifically, the pipeline of the kind of refrigeration cycle module 100 is from the shell-side flow of the First Heat Exchanger (HX1) 216, institute
The first flow of refrigerating medium and the second flow channel of the refrigerating medium is stated to flow from the pipe side of the First Heat Exchanger (HX1) 216.
Referring to Fig. 3, the structural representation of the First Heat Exchanger (HX1) 216 provided for another preferred embodiment of the present invention.
The pipeline of the kind of refrigeration cycle module 100 flows from the pipe side of the First Heat Exchanger (HX1) 216, the refrigerating
The first flow of agent flows from the pipe side of the First Heat Exchanger (HX1) 216, and the second flow channel of the refrigerating medium is from described first
The pipe side flowing of heat exchanger (HX1) 216.
It is appreciated that cool storage material is filled with the First Heat Exchanger (HX1) 216 that Fig. 1, Fig. 2 and Fig. 3 of the present invention are provided,
Described cool storage material is phase-change material for cold storage or non-phase-change material for cold storage, and the phase-change material for cold storage is freezing point in required temperature
The solid-liquid phase change material in area, the non-phase-change material for cold storage are stainless steel plate or aluminium sheet.In some preferable embodiments, institute
Kind of refrigeration cycle module 100 is stated as one kind in liquid nitrogen vaporization refrigeration, gas throttling refrigeration, stirling refrigeration and pulse tube refrigeration.
Referring to Fig. 4, the structural representation of the kind of refrigeration cycle module 100 provided for a preferred embodiment of the present invention.Can be with
Understand, show in particular the specific constructive form that kind of refrigeration cycle module 100 is liquid nitrogen vaporization refrigeration here.
Wherein, the kind of refrigeration cycle module 100 includes the environment unit of liquid nitrogen container 110 and the connection liquid nitrogen container 110
120, the environment unit 120 it is in parallel by some refrigeration valves 121 and the resistance element connected with the refrigeration valve 121 122 and
Into the environment unit 120 is connected to the First Heat Exchanger (HX1) 216 through the 5th valve (V5) 217.
In some preferable embodiments, the knot of first booster jar (PV1) 211 and the second booster jar (PV2) 220
Structure is identical, and first booster jar (PV1) 211 and the second booster jar (PV2) 220 use helium supercharging mode.
Specifically, the control module 300 is connected to the helium inlet valve of first booster jar and the second booster jar, with
And the valve (V4) 215 of first valve (V1) the 212, second valve (V2) the 213, the 3rd valve (V3) the 214, the 4th, the control mould
Block 300 is by controlling first booster jar (PV1) 211 and the pressure of the second booster jar (PV2) 220 to realize the refrigerating medium in institute
State circulating between the first booster jar (PV1) 211 and the second booster jar (PV2) 220.
Low-temperature circulating system 10 provided by the invention, its mode of operation can be divided into following two stages.
First stage：The control module 300 controls the unlatching of the first valve (V1) 212 and the 3rd valve (V3) 214, the
The closure of the valve (V4) 215 of two valves (V2) 213 and the 4th, the first booster jar (PV1) 211 are pressurized to 0.3MPa by helium,
Helium in second booster jar (PV2) 220 is pressurized to 0.2MPa, and refrigerating medium (ethanol) is cooled to -80 by kind of refrigeration cycle module 100
DEG C, due to pressure difference be present between two booster jars, the flowing between two booster jars is realized, treats the liquid residual of the first booster jar (PV1) 211
When 10%, second stage control is opened.
Second stage, the control module 300 control the closure of the first valve (V1) 212 and the 3rd valve (V3) 214, the
The valve (V4) 215 of two valves (V2) 213 and the 4th is opened, and the first booster jar (PV1) 211 is by helium pressure regulation to 0.2MPa, and the
Helium in two booster jars (PV2) 220 is pressurized to 0.3MPa, and refrigerating medium (ethanol) is cooled to -80 by kind of refrigeration cycle module 100
DEG C, due to pressure difference be present between two booster jars, realize the flowing between two booster jars.The second booster jar PV1 liquid residuals 10% are treated,
First stage control is reopened, is and so on circulated.
Certainly the low-temperature circulating system of the present invention can also have a variety of conversion and remodeling, it is not limited to above-mentioned embodiment
Concrete structure.In a word, it is apparent to those skilled in the art should to include those for protection scope of the present invention
Conversion or replacement and remodeling.
Claims (9)
1. a kind of low-temperature circulating system, it is characterised in that including kind of refrigeration cycle module, refrigerating loop module and control module；Institute
Stating refrigerating loop module includes：First booster jar, the first valve, the second valve, the 3rd valve, the 4th valve, First Heat Exchanger,
5th valve, the second heat exchanger, the 6th valve and the second booster jar；The kind of refrigeration cycle module through the 5th valve connection with
The First Heat Exchanger；The control module be connected to first booster jar, the second booster jar, the first valve, the second valve,
3rd valve and the 4th valve；Wherein：
Refrigerating medium enters the refrigerating of the First Heat Exchanger by the liquid outlet of first booster jar through first valve
Agent first flow entrance, then changed by the first flow outlet of the First Heat Exchanger through the 6th valve into described second
The refrigerating medium entrance of hot device, then enter by the outlet of the refrigerating medium of second heat exchanger refrigerating medium the of the First Heat Exchanger
Two flow channel entry points, then enter described second through the 3rd valve by the refrigerating medium second flow channel outlet of the First Heat Exchanger
The liquid inlet of booster jar；
Refrigerating medium also enters the load of the First Heat Exchanger by the liquid outlet of second booster jar through second valve
Cryogen first flow entrance, then enter described second through the 6th valve by the first flow outlet of the First Heat Exchanger
The refrigerating medium entrance of heat exchanger, then the refrigerating medium for the refrigerating medium outlet entrance First Heat Exchanger for passing through second heat exchanger
Second flow channel entrance, then enter described the through the 4th valve by the outlet of the refrigerating medium second flow channel of the First Heat Exchanger
The liquid inlet of one booster jar；
The liquid outlet of first booster jar is also liquid inlet simultaneously, and the liquid outlet of second booster jar is also simultaneously
Liquid inlet.
2. low-temperature circulating system according to claim 1, it is characterised in that the kind of refrigeration cycle module is liquid nitrogen vaporization system
One kind in cold, gas throttling refrigeration, stirling refrigeration and pulse tube refrigeration.
3. low-temperature circulating system according to claim 2, it is characterised in that the pipeline of the kind of refrigeration cycle module is from described
The pipe side flowing of First Heat Exchanger, the first flow of the refrigerating medium flow from the pipe side of the First Heat Exchanger, the refrigerating
The second flow channel of agent flows from the pipe side of First Heat Exchanger.
4. low-temperature circulating system according to claim 2, it is characterised in that the pipeline of the kind of refrigeration cycle module is from described
The second flow channel of the shell-side flow of First Heat Exchanger, the first flow of the refrigerating medium and the refrigerating medium exchanges heat from described first
The pipe side flowing of device.
5. low-temperature circulating system according to claim 2, it is characterised in that the pipeline of the kind of refrigeration cycle module is from described
The pipe side flowing of First Heat Exchanger, the first flow of the refrigerating medium flow from the pipe side of the First Heat Exchanger, the refrigerating
The second flow channel of agent flows from the pipe side of the First Heat Exchanger.
6. according to the low-temperature circulating system described in claim 3 or 4 or 5, it is characterised in that the kind of refrigeration cycle module includes liquid
The environment unit of nitrogen tank and the connection liquid nitrogen container, what the environment unit was connected by some refrigeration valves and with the refrigeration valve
Resistance element is formed in parallel, and the environment unit is connected to the First Heat Exchanger through the 5th valve.
7. low-temperature circulating system according to claim 1, it is characterised in that be filled with cold-storage in described First Heat Exchanger
Material, the cool storage material are phase-change material for cold storage or non-phase-change material for cold storage, and the phase-change material for cold storage is freezing point in institute
The solid-liquid phase change material of warm area is needed, the non-phase-change material for cold storage is stainless steel plate or aluminium sheet.
8. low-temperature circulating system according to claim 1, it is characterised in that first booster jar and the second booster jar knot
Structure is identical, and first booster jar and the second booster jar use helium supercharging mode.
9. low-temperature circulating system according to claim 8, it is characterised in that the control module is by controlling described first
Booster jar and the second supercharging pressure tank realize recycle stream of the refrigerating medium between first booster jar and the second booster jar
It is dynamic.
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| CN201710702927.3A CN107576124A (en) | 2017-08-16 | 2017-08-16 | A kind of low-temperature circulating system |
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| CN201710702927.3A CN107576124A (en) | 2017-08-16 | 2017-08-16 | A kind of low-temperature circulating system |
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| CN201710702927.3A Pending CN107576124A (en) | 2017-08-16 | 2017-08-16 | A kind of low-temperature circulating system |
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Cited By (1)
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| CN109539671A (en) * | 2018-10-22 | 2019-03-29 | 山前（珠海）科技有限公司 | A kind of refrigeration system |
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Application publication date: 20180112 |