CN106595108A - Linde cycle key node temperature adjustable ultralow temperature refrigerating device - Google Patents
Linde cycle key node temperature adjustable ultralow temperature refrigerating device Download PDFInfo
- Publication number
- CN106595108A CN106595108A CN201710057853.2A CN201710057853A CN106595108A CN 106595108 A CN106595108 A CN 106595108A CN 201710057853 A CN201710057853 A CN 201710057853A CN 106595108 A CN106595108 A CN 106595108A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- electromagnetic valve
- import
- compressor
- pipe heat
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a Linde cycle key node temperature adjustable ultralow temperature refrigerating device. The Linde cycle key node temperature adjustable ultralow temperature refrigerating device comprises a Linde cycle refrigerating system and an auxiliary temperature adjusting refrigerating system; the Linde cycle refrigerating system consists of a first compressor, an air cooling type cooler, a first sleeve type heat exchanger, a heat regenerator, a first throttling device, an evaporator and a second sleeve type heat exchanger; the auxiliary temperature adjusting refrigerating system consists of the first sleeve type heat exchanger, a second compressor, a first solenoid valve, a second solenoid valve, a second throttling device, a third throttling device, a third solenoid valve, a fourth solenoid valve, a fifth solenoid valve, a sixth solenoid valve, a condenser and the second sleeve type heat exchanger. The Linde cycle key node temperature adjustable ultralow temperature refrigerating device comprises the Linde cycle refrigerating system and the auxiliary temperature adjusting refrigerating system, and the Linde cycle refrigerating system and the auxiliary temperature adjusting refrigerating system share the first sleeve type heat exchanger and the second sleeve type heat exchanger, so that the system operating conditions can be adjusted according to system operating characteristics.
Description
Technical field
The invention belongs to super low temperature refrigeration technical field, and in particular to a kind of using woods SAPMAC method made in Germany and auxiliary homoiothermic system
Cooling system realizes the adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature of super low temperature refrigeration.
Background technology
General cold (be more than -40 DEG C) technology based on inverse Kano refrigeration principle is relatively simple and has developed more ripe.With
The industries such as the development of new and high technology, food, medical treatment, military project all have very urgent to specific low temperature environment (- 40 DEG C～-150 DEG C)
Demand, the such as research of high TC superconductors, semiconductor material characteristic research, computer chip cooling, Infrared Detectorss and thermal imagery
System cooling, the lyophilization of biological tissue, cryosurgery, low temperature cold pump, micro calorimeter etc..Obtain ultra-low temperature surroundings to adopt
Method mainly has：Classical cascade refrigeration, mixed working medium auto-cascade and the mixed working fluid isothermal based on Linde cycle throttle
Three kinds of methods of refrigeration.Classical cascade refrigeration technical know-how is more ripe, and its feasibility is widely verified, but the skill
Art system is complex, hardware is more and relatively costly, is not a kind of preferable scheme.Auto-cascading refrigeration system can be realized
Relatively low temperature, but system is complex and high efficiency separation of mixed working fluid different component is difficult to realize.
Low-temperature mixed-refrigerants throttling refrigeration ultimate principle is isothermal Joule-Thomoson effect, and set structure is relatively simple, device feature
The matured product in general cold field can be adopted integrated；The pure refrigerant constituent element of different boiling comes from different backgrounds and possess different abilities mixture working medium, Ke Yishi
Existing highly effective refrigeration of the big temperature in the range of；Can be in the case where hardware system do larger change, by filling with different working medium
Realize different cryogenic temperatures.Refrigerating efficiency is significantly better than other modes, with higher application potential.However, isothermal throttling
, using mix refrigerant as cycle fluid, mix refrigerant operating temperature span is larger for kind of refrigeration cycle, and the thing of mixed working fluid
Property change greatly therewith, system difference temperature-fall period operation characteristic difference is larger, is mainly shown as：Initial temperature-fall period compressor
Delivery temperature, pressure are higher；Temperature-fall period later stage, compressor air suction temperature may be too low, deteriorate the operating condition of system, transport
Line efficiency is drastically reduced.Therefore, designing one kind for problem above can be carried out to system conditions according to system operation feature
Adjust, and the ultra-low temperature systems of operational efficiency can be improved, with important application prospect.
The content of the invention
It is an object of the invention to solve above-mentioned technical problem and provide one kind using woods German system SAPMAC method and auxiliary tune
Temp, refrigerating system realizes the adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature of super low temperature refrigeration, to solve mixing
Under the big operating temperature span of cold-producing medium, physical property changes greatly initial temperature-fall period compressor exhaust temperature, pressure caused by institute therewith
It is higher, and in the temperature-fall period later stage, the problem that compressor air suction temperature may be too low.
For achieving the above object, the present invention is adopted the following technical scheme that：
A kind of adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature, including Linde cycle refrigeration system and auxiliary
Help homoiothermic refrigeration system, Linde cycle refrigeration system and auxiliary homoiothermic refrigeration system share first set pipe heat exchanger, second set
Pipe heat exchanger；
Linde cycle refrigeration system includes the first compressor, air cooled chiller, regenerator, first throttle device and evaporation
Device：The air vent and air entry of the first compressor import and the inner tube of the second double pipe heat exchanger respectively with air cooled chiller
Outlet connection；The outlet of air cooled chiller is connected with the inner tube import of first set pipe heat exchanger；First set pipe heat exchanger
Inner tube outlet be connected with an import of regenerator, regenerator one outlet be connected with one end of first throttle device, first segment
The other end of stream device is connected with the import of vaporizer, and the outlet of vaporizer is connected with another import of regenerator, regenerator
Another outlet is connected with the inner tube import of the second double pipe heat exchanger；
Auxiliary homoiothermic refrigeration system includes the second compressor, condenser, second throttling device, the 3rd throttling arrangement；Second
The air vent of compressor is connected with the import of condenser, the export pipeline of condenser be divided into two-way respectively with second throttling device
Import and the connection of the 5th electromagnetic valve；The outlet connecting pipe road of second throttling device be divided into two-way respectively with the second electromagnetic valve and the 6th
Electromagnetic valve connects, and the second electromagnetic valve is connected with the outer tube import of first set pipe heat exchanger, the export pipeline of the 6th electromagnetic valve and
The export pipeline of the 5th electromagnetic valve is connected with the outer tube import of the second double pipe heat exchanger after converging；First electromagnetic valve and the 3rd
One end of electromagnetic valve is exported with the outer tube of first set pipe heat exchanger respectively and the outer tube outlet of the second double pipe heat exchanger is connected,
The other end is connected with the air entry of the second compressor after converging；One end of 4th electromagnetic valve and the 3rd electromagnetic valve and the second bushing type
The outer tube of heat exchanger export between pipeline connection, the other end is connected with the import of the 3rd throttling arrangement, and the 3rd throttling arrangement goes out
Mouth is connected with the export pipeline of second throttling device.
The vaporizer is located in building enclosure.
The first throttle device, second throttling device, the 3rd throttling arrangement are choke valve.
The present invention Linde cycle refrigeration system with auxiliary homoiothermic refrigeration system by share first set pipe heat exchanger and
Second double pipe heat exchanger and connect, by Linde cycle refrigeration system run reduce vaporizer place space temperature, pass through
The regulation and control and combination of electromagnetic valve open and-shut mode in auxiliary homoiothermic refrigeration system so as to run with difference in functionality and respectively with bushing type
Heat exchanger is condenser or vaporizer, adjusts the temperature value of Linde cycle refrigeration system key node according to this.
The present invention, can be according to system operation feature to system operation using woods German system SAPMAC method and auxiliary homoiothermic refrigeration system
Operating mode is adjusted, and can improve operational efficiency, shows：
1) Linde cycle refrigeration system initial operation stage, using pressure of the auxiliary homoiothermic refrigeration system to the operation starting stage
Contracting machine expellant gas carry out effective temperature-reducing, improve the stability and operational efficiency of system operation；
2) when Linde cycle refrigeration system is run, using auxiliary homoiothermic refrigeration system can to compressor air inlet gas
Suitably lowered the temperature, improved the stability and operational efficiency of system operation；
3) during Linde cycle refrigeration system, the mixing work that compressor can be discharged using auxiliary homoiothermic refrigeration system
Matter gas before into regenerator carries out effective temperature-reducing, improves the thermodynamic property of circulation, improves the operational efficiency of system.
Description of the drawings
Fig. 1 is the system structure schematic diagram of the present invention；
Fig. 2 is that compressor of the present invention discharges mixed working fluid pre-cooling operational mode schematic diagram；
Fig. 3 is compressor suction mixed working fluid warm-up operating modes schematic diagram of the present invention；
Fig. 4 is that mixed working fluid of the present invention is temperature integrated adjusts operational mode schematic diagram.
Specific embodiment
Below, the substantive distinguishing features and advantage of the present invention are further described with reference to example, but the present invention not office
It is limited to listed embodiment.
As shown in figures 1-4, a kind of adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature, including woods moral is followed
Ring refrigeration system and auxiliary homoiothermic refrigeration system, Linde cycle refrigeration system and auxiliary homoiothermic refrigeration system share first set tubular type
Heat exchanger 3, the second double pipe heat exchanger 18；
Linde cycle refrigeration system include the first compressor 1, air cooled chiller 2, regenerator 4, first throttle device 5,
The vaporizer 7 being located in building enclosure 6；
The air vent and air entry of the first compressor 1 import and the second casing type heat exchanging respectively with air cooled chiller 2
The inner tube outlet connection of device 18；The outlet of air cooled chiller 2 is connected with the inner tube import of first set pipe heat exchanger 3, and first
The inner tube outlet of double pipe heat exchanger 3 is connected with an import of regenerator 4, an outlet and the first throttle device 5 of regenerator 4
One end is connected, and the other end of first throttle device 5 is connected with the import of vaporizer 7, and the outlet of vaporizer 7 is another with regenerator 4
One import is connected, and another outlet of regenerator 4 is connected with the inner tube import of the second double pipe heat exchanger 18；
Auxiliary homoiothermic refrigeration system includes the second compressor 8, the first electromagnetic valve 9, the second electromagnetic valve 10, second throttling device
11st, the 3rd throttling arrangement 12, the 3rd electromagnetic valve 13, the 4th electromagnetic valve 14, the 5th electromagnetic valve 15, the 6th electromagnetic valve 16, condenser
17；
The air vent of the second compressor 8 is connected with the import of condenser 17, and the pipeline that goes out of condenser 17 is divided into two-way, respectively
Import and the 5th electromagnetic valve 15 with second throttling device 11 is connected；The outlet connecting pipe road of second throttling device 11 is divided into two
Road, is connected with the second electromagnetic valve 10 and the 6th electromagnetic valve 16 respectively, the outer tube of the second electromagnetic valve 10 and first set pipe heat exchanger 3
Import connects, and the export pipeline and 15 export pipeline of the 5th electromagnetic valve of the 6th electromagnetic valve 16 converge rear and the second double pipe heat exchanger
18 outer tube import connection；One end of first electromagnetic valve 9 and the 3rd electromagnetic valve 13 is gone out with 3 outer tube of first set pipe heat exchanger respectively
Mouth and the outlet connection of 18 outer tube of the second double pipe heat exchanger, the other end are connected with 8 air entry of the second compressor after converging, and the 4th is electric
One end of magnet valve 14 and the 3rd electromagnetic valve 13 and 18 outer tube of the second double pipe heat exchanger export between pipeline connection, the other end and the
The import connection of three throttling arrangements 12, the outlet of the 3rd throttling arrangement 12 are connected with the export pipeline of second throttling device 11.
In the present invention, Linde cycle refrigeration system with auxiliary homoiothermic refrigeration system by share first set pipe heat exchanger and
Second double pipe heat exchanger and connect.
Wherein, the first throttle device, second throttling device, the 3rd throttling arrangement are choke valve.
The present invention operation principle be：Being run by Linde cycle refrigeration system is reduced in the building enclosure that vaporizer is located
The temperature in space, by aiding in the regulation and control of electromagnetic valve open and-shut mode in homoiothermic refrigeration system, combination so as to transported with difference in functionality
OK, and respectively with double pipe heat exchanger as condenser or vaporizer, the temperature of Linde cycle refrigeration system key node is adjusted according to this
Angle value, reaches stable circulation operating condition, improves the effect of circularly cooling efficiency.
The adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature can be by adjusting electromagnetic valve open and-shut mode, respectively
Mixed working fluid pre-cooling pattern, compressor suction mixed working fluid pre-cooling pattern, the temperature integrated regulation of mixed working fluid are discharged with compressor
Operational mode.
Compressor discharges mixed working fluid pre-cooling pattern：When the first 1 excessive discharge temperature of compressor, the first compressor is set
1st, air cooled chiller 2 carries blower fan, the second compressor 8, the first electromagnetic valve 9, the second electromagnetic valve 10 and condenser 17 and carries wind
Machine is opened, and closes the 3rd electromagnetic valve 13, the 4th electromagnetic valve 14, the 5th electromagnetic valve 15 and the 6th electromagnetic valve 16.Through the first compression
High Temperature High Pressure mixed refrigerant stream after machine 1 compresses enters air cooled chiller 2, is cooled to environment temperature by the air equipressure for flowing through
Degree, subsequently flows into 3 inner tube of first set pipe heat exchanger and by auxiliary homoiothermic refrigeration system pre-cooling, and the mixed working fluid after pre-cooling is flowed into
4 high-pressure channel of regenerator is simultaneously further cooled down by the low-pressure low-temperature mixed working fluid that backflows, the mix refrigerant Jing first segments after cooling
Stream device 5 enters vaporizer 7 after throttling and provides cold, enters 4 low-pressure channel of regenerator by the mixed working fluid that vaporizer flows out, cold
But while high pressure is to flow, own temperature gradually recovers, and is sucked by the first compressor 1 after flowing out regenerator 4.Second compressor 8
The high-pressure refrigerant of discharge flows into Jing second throttling devices 11 after condenser 17 is condensed and throttles, and is changed into the liquid refrigeration of low-temp low-pressure
Agent, flows through the outer tube evaporation that the second electromagnetic valve 10 enters first set pipe heat exchanger 3, cools down Jing after the mixed working fluid that inner tube is flowed through
First electromagnetic valve 9 is back to the second compressor 8.
Compressor sucks mixed working fluid pre-cooling pattern：When 1 suction temperature of the first compressor is too high, the first compressor is set
1st, air cooled chiller 2 carries blower fan, the second compressor 8, the 3rd electromagnetic valve 13, the 6th electromagnetic valve 16 and condenser 17 and carries wind
Machine is opened, and closes the first electromagnetic valve 9, the second electromagnetic valve 10, the 4th electromagnetic valve 14 and the 5th electromagnetic valve 15.Through the first compressor
High Temperature High Pressure mixed refrigerant stream after 1 compression enters air cooled chiller 2, is cooled to ambient temperature by the air equipressure for flowing through,
4 high-pressure channel of regenerator is flowed directly into after subsequently flowing into 3 inner tube of first set pipe heat exchanger and by low-pressure low-temperature mixing work of backflowing
Matter is progressively cooled down, and the mix refrigerant after cooling Jing after the throttling of first throttle device 5 enters vaporizer 7 and provides cold, by evaporating
The mixed working fluid that device flows out enters 4 low-pressure channel of regenerator, and while cooling high pressure is to flow, own temperature gradually recovers, and flows out
18 inner tube of the second double pipe heat exchanger is flowed into after regenerator 4 and the first compressor 1 is cooled to by auxiliary homoiothermic refrigeration system and designed
Suction temperature, is subsequently sucked by the first compressor 1.After the high-pressure refrigerant that second compressor 8 is discharged flows into the condensation of condenser 17
Jing second throttling devices 11 throttle, and are changed into the liquid refrigerant of low-temp low-pressure, flow through the 6th electromagnetic valve 16 and enter the second bushing type
18 outer tube of heat exchanger, evaporates and absorbs the heat of the mixed working fluid that inner tube is flowed through, and with after, the 3rd electromagnetic valves 13 of Jing are back to second
Compressor 8.
The temperature integrated regulation operational mode of mixed working fluid：When 1 suction temperature of the first compressor is too low, arranges first and compress
Machine 1, air cooled chiller 2 carry blower fan, the second compressor 8, the first electromagnetic valve 9, the second electromagnetic valve 10, the 4th electromagnetic valve 14,
5th electromagnetic valve 15 and condenser 17 carry blower fan unlatching, close the 3rd electromagnetic valve 13 and the 6th electromagnetic valve 16.Through the first pressure
High Temperature High Pressure mixed refrigerant stream after contracting machine 1 compresses enters air cooled chiller 2, is cooled to environment temperature by the air equipressure for flowing through
Degree, subsequently flows into 3 inner tube of first set pipe heat exchanger and by auxiliary homoiothermic refrigeration system pre-cooling, and the mixed working fluid after pre-cooling is flowed into
4 high-pressure channel of regenerator is simultaneously progressively cooled down by the low-pressure low-temperature mixed working fluid that backflows, the mix refrigerant Jing first throttles after cooling
Device 5 enters vaporizer 7 after throttling and provides cold, enters 4 low-pressure channel of regenerator, cooling by the mixed working fluid that vaporizer flows out
While high pressure is to flow, own temperature gradually recovers, and flows into 18 inner tube of the second double pipe heat exchanger, by auxiliary after flowing out regenerator 4
Help homoiothermic refrigeration system to preheat, subsequently sucked by the first compressor 1.The high-pressure refrigerant that second compressor 8 is discharged flows into condensation
Device 17 is divided into two-way after condensing, and Jing second throttling devices 11 throttle all the way, and five electromagnetic valves of another Lu Jing 15 flow into the second sleeve pipe
18 outer tube of formula heat exchanger, heating flow through the mixed working fluid of inner tube, flow subsequently through the 4th electromagnetic valve 14 and by the 3rd throttling arrangement 12
Throttling, after the cold-producing medium Jing after the throttling of second throttling device 11 and the 3rd throttling arrangement 12 throttle converges, flows through the second electromagnetic valve
10 evaporate into 3 outer tube of first set pipe heat exchanger, and after absorbing the mixed working fluid heat that inner tube is flowed through, the first electromagnetic valves of Jing 9 flow back
To the second compressor 8.
The present invention, can be according to system operation feature to system due to including woods German system SAPMAC method and auxiliary homoiothermic refrigeration system
Operating condition is adjusted, and the beneficial effect brought is：
(1) Linde cycle refrigeration system initial operation stage, the low boiling component included by mix refrigerant are easily caused pressure
Contracting machine delivery temperature, pressure are higher, can be to the compressor expellant gas of operation starting stage using auxiliary homoiothermic refrigeration system
Effective temperature-reducing is carried out, the stability and operational efficiency of the operation of system is improved.
(2), when Linde cycle refrigeration system is run, the hybrid refrigeration temperature after backheat is often close to ambient temperature, general
All over the design suction temperature higher than existing volume production compressor.Using auxiliary homoiothermic refrigeration system can to compressor air inlet gas
Body is suitably lowered the temperature, and improves the stability and operational efficiency of system operation.
(3) during Linde cycle refrigeration system, the mixing that compressor can be discharged using auxiliary homoiothermic refrigeration system
Working medium gas before into regenerator carries out effective temperature-reducing, improves the thermodynamic property of circulation, improves the operational efficiency of system.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. the adjustable ultra-low temperature refrigerating device of a kind of Linde cycle key node temperature, it is characterised in that including Linde cycle system
Cooling system and auxiliary homoiothermic refrigeration system, Linde cycle refrigeration system and auxiliary homoiothermic refrigeration system share first set pipe type heat transfer
Device, the second double pipe heat exchanger；
Linde cycle refrigeration system includes the first compressor, air cooled chiller, regenerator, first throttle device and vaporizer：
The air vent and air entry of the first compressor is gone out with the import of air cooled chiller and the inner tube of the second double pipe heat exchanger respectively
Mouth connection；The outlet of air cooled chiller is connected with the inner tube import of first set pipe heat exchanger；First set pipe heat exchanger
Inner tube outlet is connected with an import of regenerator, and an outlet of regenerator is connected with one end of first throttle device, first throttle
The other end of device is connected with the import of vaporizer, and the outlet of vaporizer is connected with another import of regenerator, regenerator it is another
One outlet is connected with the inner tube import of the second double pipe heat exchanger；
Auxiliary homoiothermic refrigeration system includes the second compressor, condenser, second throttling device, the 3rd throttling arrangement；Second compression
The air vent of machine is connected with the import of condenser, and the export pipeline of condenser is divided into import of the two-way respectively with second throttling device
Connect with the 5th electromagnetic valve；The outlet connecting pipe road of second throttling device be divided into two-way respectively with the second electromagnetic valve and the 6th electromagnetism
Valve connects, and the second electromagnetic valve is connected with the outer tube import of first set pipe heat exchanger, the export pipeline and the 5th of the 6th electromagnetic valve
The export pipeline of electromagnetic valve is connected with the outer tube import of the second double pipe heat exchanger after converging；First electromagnetic valve and the 3rd electromagnetism
One end of valve is exported with the outer tube of first set pipe heat exchanger respectively and the outer tube outlet of the second double pipe heat exchanger is connected, another
End is connected with the air entry of the second compressor after converging；One end of 4th electromagnetic valve and the 3rd electromagnetic valve and the second casing type heat exchanging
The outer tube of device export between pipeline connection, the other end is connected with the import of the 3rd throttling arrangement, the outlet of the 3rd throttling arrangement and
The export pipeline connection of second throttling device.
2. the adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature according to claim 1, it is characterised in that institute
State vaporizer to be located in building enclosure.
3. the adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature according to claim 2, it is characterised in that institute
First throttle device, second throttling device, the 3rd throttling arrangement are stated for choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057853.2A CN106595108B (en) | 2017-01-23 | 2017-01-23 | Ultra-low temperature refrigerating device with adjustable temperature of key node of Linde cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057853.2A CN106595108B (en) | 2017-01-23 | 2017-01-23 | Ultra-low temperature refrigerating device with adjustable temperature of key node of Linde cycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106595108A true CN106595108A (en) | 2017-04-26 |
| CN106595108B CN106595108B (en) | 2022-08-02 |
Family
ID=58586521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057853.2A Active CN106595108B (en) | 2017-01-23 | 2017-01-23 | Ultra-low temperature refrigerating device with adjustable temperature of key node of Linde cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106595108B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1566271A (en) * | 1968-01-19 | 1969-05-09 | ||
| GB1300948A (en) * | 1969-10-07 | 1972-12-29 | Rolls Royce | Improvements in or relating to power plants |
| CN201141711Y (en) * | 2007-12-25 | 2008-10-29 | 天津商业大学 | Nature working medium refrigeration heat pump |
| CN201429261Y (en) * | 2009-04-30 | 2010-03-24 | 重庆哈丁科技有限公司 | Cascade refrigeration system |
| CN104457019A (en) * | 2014-11-17 | 2015-03-25 | 浙江大学 | Conventional compression heat pump/two-stage absorption compound refrigerating system with internal heat recycling |
| CN206449923U (en) * | 2017-01-23 | 2017-08-29 | 天津商业大学 | A kind of adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature |
-
2017
- 2017-01-23 CN CN201710057853.2A patent/CN106595108B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1566271A (en) * | 1968-01-19 | 1969-05-09 | ||
| GB1300948A (en) * | 1969-10-07 | 1972-12-29 | Rolls Royce | Improvements in or relating to power plants |
| CN201141711Y (en) * | 2007-12-25 | 2008-10-29 | 天津商业大学 | Nature working medium refrigeration heat pump |
| CN201429261Y (en) * | 2009-04-30 | 2010-03-24 | 重庆哈丁科技有限公司 | Cascade refrigeration system |
| CN104457019A (en) * | 2014-11-17 | 2015-03-25 | 浙江大学 | Conventional compression heat pump/two-stage absorption compound refrigerating system with internal heat recycling |
| CN206449923U (en) * | 2017-01-23 | 2017-08-29 | 天津商业大学 | A kind of adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106595108B (en) | 2022-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ma et al. | Experimental study of a heat pump system with flash-tank coupled with scroll compressor | |
| CN103629860B (en) | Trans-critical cycle CO 2cool and thermal power combined cycle system | |
| CN102128508B (en) | Ejector throttling and vapor supplementing system and heat pump or refrigerating system vapor supplementing method | |
| CN105004100B (en) | Vapor compression refrigeration/heat pump system of single refrigerant circuit, more pressures of inspiration(Pi) | |
| CN204373252U (en) | Change type CO2 trans critical cycle refrigeration system | |
| CN106152582A (en) | A kind of air conditioning system | |
| CN205807894U (en) | A kind of Auto-cascade cycle three temperature varying capacity output refrigeration system | |
| CN109916109A (en) | A kind of heat pump system and air conditioner | |
| CN109737624A (en) | A kind of dual temperature refrigeration system and its control method | |
| CN107356007A (en) | A kind of three warm varying capacity of Auto-cascade cycle exports refrigeration system | |
| CN104896793A (en) | Air conditioning hot water heater system | |
| CN110513795A (en) | A kind of refrigerating and heat-supplying multifunctional composite air conditioner heat pump system and working method | |
| WO2023010887A1 (en) | High-low temperature ambient test box refrigeration system and method capable of performing rewarming by using ambient heat | |
| CN106196675B (en) | Air conditioner | |
| CN106949531A (en) | A kind of multi-joint hybrid system of anhydrous floor heating and its control method | |
| CN103697627B (en) | Double-temperature refrigerator coagulates two stages of compression heat pump | |
| CN207585127U (en) | It can carry out the transcritical refrigerant heat pump assembly of single twin-stage conversion | |
| CN103968455B (en) | Air conditioner | |
| CN101625176B (en) | Quasi-tertiary compressed air source hot pump system | |
| CN106403347B (en) | Low-temperature air-conditioning system and air-conditioning | |
| CN205690729U (en) | Variable-flow either simplex matter heat exchangers in parallel overlapping heat pump | |
| CN106766325B (en) | Low-temperature air-conditioning system and air-conditioning | |
| CN206449923U (en) | A kind of adjustable ultra-low temperature refrigerating device of Linde cycle key node temperature | |
| CN211316632U (en) | Supercritical CO is striden in ejector pressure boost subcooling expander coupling2System for controlling a power supply | |
| CN105758047B (en) | The cascade refrigeration system of variable-flow either simplex matter common condenser and evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |