CN109506391A - Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system - Google Patents
Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system Download PDFInfo
- Publication number
- CN109506391A CN109506391A CN201811568330.5A CN201811568330A CN109506391A CN 109506391 A CN109506391 A CN 109506391A CN 201811568330 A CN201811568330 A CN 201811568330A CN 109506391 A CN109506391 A CN 109506391A
- Authority
- CN
- China
- Prior art keywords
- generator
- condenser
- sequentially connected
- outlet
- compressor
- 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.)
- Pending
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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/02—Compression-sorption machines, plants, or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a kind of thermal drivers without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system.This anti-compressor high-temperature exhaust pipe connects generator, the refrigerant vapour outlet of generator, condenser, throttle valve one, condenser refrigerant inlet be sequentially connected, refrigerant outlet, absorber, riser, the generator solution inlet of condenser are sequentially connected, the taphole of generator, riser inner tube, absorber solution inlet are sequentially connected；Compressor outlet connects the CO of condenser by gas cooler2Entrance, the CO of condenser2Outlet is sequentially connected by throttle valve two, evaporator, compressor inlet；The entrance of heat exchanger, evaporator in compressor outlet, generator is sequentially connected.The mutually coordinated matching of two systems of the invention, it is common to improve circulation whole efficiency.
Description
Technical field
The present invention relates to compressor air-discharging recuperations of heat to use technology and CO2Refrigeration technology field, more particularly, to a kind of pressure
The driving of contracting machine exhaust heat recovery is without the CO for pumping absorption auxiliary supercooling2Trans-critical cycle cooling cycle system.
Background technique
China has become the maximum country of refrigerating plant volume of production and marketing, and condenser can discharge largely when refrigerating plant operating
Heat causes thermal pollution.Refrigerating plant compressor exhaust temperature can make a call to 80-130 DEG C, heat that evaporator of refrigerating device absorbs and
The heat that compressor work generates, which has all been discharged by condenser, causes the waste of energy in environment.So to refrigerating plant
The heat of discharge effectively recycled, the utilization rate of energy is improved on very big Chengdu.
Although a lot of ODP of refrigerant used in most of refrigerating plants are very low now, GWP very it is high cannot both it is simultaneous
?.And CO2There is advantageous advantage in these areas as refrigerant.It has the advantage that (1), natural refrigerant, right
Environment is without destruction, ODP=0, GWP=1.(2), unit volume refrigerating capacity is big, and compared with common working medium, equipment volume is small.
(3), safety coefficient is high, nontoxic non-combustible, and chemical property is stablized.(4), viscosity is low, has excellent mobility and conductivity of heat, with
Lubricating oil has good compatibility.(5), cheap to be easy to obtain.
Summary of the invention
A kind of refrigeration system of transcritical CO_2 it is an object of that present invention to provide thermal drivers without pump absorption refrigeration auxiliary supercooling
System.
The needs of in order to more than meeting, the technical solution used in the present invention is: proposing a kind of to return based on refrigerating plant heat
Receive CO of the driving without pump absorption refrigeration auxiliary supercooling2Trans-critical cycle refrigerating plant, including auxiliary without pump absorption system and
CO2Transcritical cooling system:
The auxiliary includes generator, condenser, throttle valve one, condenser, absorption without pump absorption type refrigeration circulating system
Device and riser；The high-temperature exhaust pipe of compressor connects generator, places refrigerant, the refrigerant vapour of generator in generator
Outlet, condenser, throttle valve one, condenser refrigerant inlet be sequentially connected, the refrigerant outlet of condenser, mentions absorber
Riser inner tube, generator solution inlet are sequentially connected, the crescent moon shaped channel of the taphole of generator, riser, and absorber is molten
Liquid entrance is sequentially connected.
The Trans-critical cycle refrigeration cycle is the CO for connecting condenser by gas cooler by compressor outlet2Entrance,
The CO of condenser2Outlet is sequentially connected by throttle valve two, evaporator, compressor inlet；In compressor outlet, generator
Heat exchanger, evaporator entrance be sequentially connected.
Auxiliary is water without refrigerant used in pump Absorption Cooling System, and absorbent is lithium bromide.CO2Trans-critical cycle refrigeration
Refrigerant used in recycling is natural refrigerant CO2。CO2Trans-critical cycle refrigeration cycle are as follows: the CO2 working medium of low-temp low-pressure is from needing to drop
The environment of temperature absorbs heat, enters the supercritical fluid of boil down to high temperature and pressure in compressor, then a part enters gas
Body cooler is to environment heat release, CO at this time2The temperature of supercritical fluid is slightly above environment temperature.Then without pump absorption refrigeration system
The CO that the evaporator of system is exported from air cooler2Heat, CO are absorbed in fluid2The temperature of fluid reduces, and degree of supercooling becomes larger.It is most laggard
Enter throttle valve throttling and become the gas-liquid two-phase fluid of low-temp low-pressure to enter evaporator and absorb the heat of environment of needing to cool down.It completes
Entire circulation.On the other hand the water vapor absorption air cooler without the low-temp low-pressure in pump Absorption Cooling System exports CO2In
After heat, enters back into generator and be absorbed agent absorption, form the solution containing refrigerant, which is sent to riser inner tube
Generator makes the refrigerant in solution be evaporated again and is sent into condenser by the recuperation of heat heating of refrigerating plant.It is same with this
When, the solution after generation is restored to original ingredient, after supercooling, spreads by liquid distribution plate and inhales on absorber coil pipe
The low pressure refrigerant vapor from generator is received, to complete entire circulation.
The advantages and positive effects of the present invention are:
(1) the used working medium of transcritical cooling system is CO2, nontoxic non-combustible, safety coefficient is high, inexpensively easily obtains
It takes, refrigerating effect per unit swept volume is big so that equipment volume is small.More importantly its ODP=O, GWP=1 can significantly slow down
Greenhouse effects process is a kind of energy-saving and environment-friendly working medium.
(2) introduce one it is new without pump Absorption Cooling System.Due to supercritical refrigeration cycle gas cooler outlet with
Evaporator inlet pressure difference is big, leads to the inefficient of whole system, so being gas-cooled using without pump Absorption Cooling System to reduce
Device exports the temperature of supercritical fluid, and restriction loss can be greatly lowered, and increases circularly cooling amount, and then greatly improve system
Efficiency.
(3) recuperation of heat of Trans-critical cycle refrigerating plant is made full use of.By by the high-temperature gas of compressor discharge as absorption
The heat source of formula refrigeration, the cooling capacity of absorption system is to CO2Cold treatment was carried out, to improve the efficiency of whole system.It can do
It is energy-efficient to low-carbon environment-friendly.
(4) purpose without pump absorption system is the CO of cooling gas cooler outlet2, evaporating temperature is higher,
Higher than the evaporating temperature of system, the mutually coordinated matching of two systems is common to improve circulation whole efficiency.
(5), there is no solution pump using riser feed flow without pump absorption system, greatly reduce absorption refrigeration
Power consumption, to greatly improve the efficiency of entire refrigeration cycle.
Detailed description of the invention
Fig. 1 is system schematic of the invention.
1, compressor in figure；2, evaporator；3, throttle valve two；4, heat exchanger；5, throttle valve one；6, condenser；7, it mentions
Riser；8, absorber；9, riser inner tube；10, generator；11, gas cooler；12, compressor exhaust pipe；13, riser
String music shape channel；14, liquid distribution plate.
Specific embodiment
For that can further appreciate that invention, features and effects of the invention, the following examples are hereby given, and cooperates attached drawing
Detailed description are as follows:
Fig. 1 is a kind of Trans-critical cycle CO of thermal drivers without pump absorption refrigeration auxiliary supercooling2Refrigeration system.
As shown in Figure 1, CO2Heat source of the recuperation of heat of transcritical cooling system as absorption system, wherein assisting
Without pump absorption type refrigeration circulating system by generator 10, condenser 6, throttle valve 1, heat exchanger 4, absorber 8, riser 7
Composition；2 exhaust pipe 12 of compressor high temperature CO connects generator 10, places refrigerant, the refrigerant of generator 10 in generator 10
Steam (vapor) outlet, condenser 6, throttle valve 1, heat exchanger 4 refrigerant inlet be sequentially connected, the refrigerant of heat exchanger 4 goes out
Mouth, absorber 8, riser inner tube 9,10 solution inlet of generator are sequentially connected, the string of the taphole of generator 10, riser
Moon shape channel 13,8 solution inlet of absorber is sequentially connected,
Trans-critical cycle refrigeration cycle is made of compressor 1, evaporator 2, gas cooler 11 and throttle valve 22；By compressing
1 gas outlet of machine connects the CO of condenser 4 by gas cooler 112Entrance, the CO of condenser 42Outlet by throttle valve 23,
Evaporator 2,1 air inlet of compressor are sequentially connected；Compressor 1 gas outlet, the heat exchanger in generator 10, evaporator 2 enter
Mouth is sequentially connected.
The present embodiment based on CO2The Trans-critical cycle of the recuperation of heat driving absorption refrigeration auxiliary supercooling of transcritical cooling system
The working principle of refrigeration system is
First stage: the high-temperature exhaust pipe of compressor 1 is by the generator 10 without pump absorption system, through excessively high
Warm heating exhaust gas makes the refrigerant in solution be evaporated again to be sent into condenser 6, and high-pressure refrigerant vapor is in condenser 6
Liquid is condensed into after one 5 reducing pressure by regulating flow of throttle valve to condenser 4.On the other hand the lithium-bromide solution after occurring is restored to
Cooling, 14 cloth of liquid distribution plate by the weak solution convection current for promoting orchestral music shape channel 13 with passing through promotion shop inner tube 9 of ingredient originally
Liquid becomes the absorbent absorbing liquid of tool and enters the low pressure refrigerant vapor that absorber absorption carrys out condenser.
Second stage: the working medium filled in vapor compression refrigeration system is CO2, the steam of low-temp low-pressure enters compressor 1
Air entry is compressed to the supercritical fluid of high temperature and pressure by compressor 1, is changed into gas cooler 11 with surrounding air
Heat, since air cooler 11 is there are heat transfer temperature difference, a little higher than environment temperature of temperature at this time.
Phase III: the low-pressure vapor in condenser 4 absorbs the heat exported from air cooler 11, to air cooling
What device 11 exported be subcooled, and is further cooled to low temperature, higher pressure supercritical fluid.
Fourth stage: cryogenic high pressure supercritical fluid is the gas-liquid two of low-temp low-pressure after 23 expansion throttling of throttle valve
Phase fluid state absorbs the heat in subject space into evaporator 2, then enters compressor 1, complete refrigeration cycle.
5th stage: to CO2The vapor of low-temp low-pressure after realizing supercooling enters absorber 8 and is absorbed agent absorption,
The solution containing refrigerant is formed, which is pumped into generator 10 with solution, makes solution by the heating of compressor high-temperature exhaust air
In refrigerant evaporated again through condenser 6 after cooling, one 5 reducing pressure by regulating flow of throttle valve, be again introduced into evaporator to CO2It realized
Cold completion auxiliary circulation.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the present invention and invention not office
It is limited to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, this field
Those of ordinary skill under the enlightenment of the present invention and invention, do not departing from the present invention and invention objective and claimed
Ambit under, many forms can also be made, these belong to the present invention and invention protection scope within.
Claims (1)
1. a kind of thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system, which is characterized in that by assisting no pump
Absorption system and CO2Transcritical cooling system composition,
The assisted absorption cooling cycle system be include generator, condenser, throttle valve one, condenser, absorber, promotion
Pipe, generator；Compressor high temperature CO2Exhaust pipe connects generator, places refrigerant, the refrigerant vapour of generator in generator
Outlet, condenser, throttle valve one, condenser refrigerant inlet be sequentially connected, the refrigerant outlet of condenser, mentions absorber
Riser inner tube, generator solution inlet are sequentially connected, the crescent moon shaped channel of the taphole of generator, riser, and absorber is molten
Liquid entrance is sequentially connected；
The Trans-critical cycle refrigeration cycle is the CO for connecting condenser by gas cooler by compressor outlet2Entrance, condenser
CO2Outlet is sequentially connected by throttle valve two, evaporator, compressor inlet；Heat in compressor outlet, generator is handed over
Parallel operation, evaporator entrance be sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568330.5A CN109506391A (en) | 2018-12-21 | 2018-12-21 | Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568330.5A CN109506391A (en) | 2018-12-21 | 2018-12-21 | Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109506391A true CN109506391A (en) | 2019-03-22 |
Family
ID=65754030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811568330.5A Pending CN109506391A (en) | 2018-12-21 | 2018-12-21 | Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506391A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869945A (en) * | 2019-03-26 | 2019-06-11 | 天津商业大学 | Absorption critical-cross carbon dioxide double-stage compressive refrigerating system |
| CN110425769A (en) * | 2019-07-25 | 2019-11-08 | 上海澳钶节能设备有限公司 | CO can be reduced2Transcritical cooling system air cooler outlet temperature system and method |
| CN111141057A (en) * | 2020-01-21 | 2020-05-12 | 天津商业大学 | Absorption type supercooling transcritical CO2System for controlling a power supply |
| CN109869945B (en) * | 2019-03-26 | 2024-07-09 | 天津商业大学 | Absorption type transcritical carbon dioxide double-stage compression refrigeration system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336507A (en) * | 2001-09-19 | 2002-02-20 | 西安交通大学 | Cresent passage solution elevating vapor generator for absorption refrigerator with half-moon like pass |
| CN1651838A (en) * | 2005-02-08 | 2005-08-10 | 华南理工大学 | Non-pump sorption refrigerator |
| CN2913969Y (en) * | 2006-05-24 | 2007-06-20 | 肖波 | Compression type and absorption type associated refrigerating plant |
| CN102322705A (en) * | 2011-08-01 | 2012-01-18 | 东南大学 | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration |
| CN105042931A (en) * | 2015-07-03 | 2015-11-11 | 浙江大学 | Combined heat pump system adopting trans-critical circulation and absorption heat pump co-production |
| CN107323217A (en) * | 2017-07-21 | 2017-11-07 | 天津商业大学 | A kind of CO of waste heat driving absorption refrigeration auxiliary supercooling2Air conditioning for automobiles |
| CN107364564A (en) * | 2017-07-21 | 2017-11-21 | 天津商业大学 | The absorption CO for cooperateing with auxiliary to be subcooled with thermoelectric cooling2Marine refrigeration system |
-
2018
- 2018-12-21 CN CN201811568330.5A patent/CN109506391A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336507A (en) * | 2001-09-19 | 2002-02-20 | 西安交通大学 | Cresent passage solution elevating vapor generator for absorption refrigerator with half-moon like pass |
| CN1651838A (en) * | 2005-02-08 | 2005-08-10 | 华南理工大学 | Non-pump sorption refrigerator |
| CN2913969Y (en) * | 2006-05-24 | 2007-06-20 | 肖波 | Compression type and absorption type associated refrigerating plant |
| CN102322705A (en) * | 2011-08-01 | 2012-01-18 | 东南大学 | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration |
| CN105042931A (en) * | 2015-07-03 | 2015-11-11 | 浙江大学 | Combined heat pump system adopting trans-critical circulation and absorption heat pump co-production |
| CN107323217A (en) * | 2017-07-21 | 2017-11-07 | 天津商业大学 | A kind of CO of waste heat driving absorption refrigeration auxiliary supercooling2Air conditioning for automobiles |
| CN107364564A (en) * | 2017-07-21 | 2017-11-21 | 天津商业大学 | The absorption CO for cooperateing with auxiliary to be subcooled with thermoelectric cooling2Marine refrigeration system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869945A (en) * | 2019-03-26 | 2019-06-11 | 天津商业大学 | Absorption critical-cross carbon dioxide double-stage compressive refrigerating system |
| CN109869945B (en) * | 2019-03-26 | 2024-07-09 | 天津商业大学 | Absorption type transcritical carbon dioxide double-stage compression refrigeration system |
| CN110425769A (en) * | 2019-07-25 | 2019-11-08 | 上海澳钶节能设备有限公司 | CO can be reduced2Transcritical cooling system air cooler outlet temperature system and method |
| CN111141057A (en) * | 2020-01-21 | 2020-05-12 | 天津商业大学 | Absorption type supercooling transcritical CO2System for controlling a power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105042931B (en) | A kind of trans critical cycle and the combined heat-pump system of absorption heat pump coproduction | |
| CN110044093A (en) | Two-stage Compression second vapor injection CO2Three-level backheat chiller-heat pump/refrigeration system | |
| CN105135749B (en) | Carbon dioxide cold-hot combined supply system | |
| CN102650478B (en) | Trans-critical-compression/absorption composite refrigeration device utilizing low-grade heat | |
| CN105674558A (en) | Gas engine driven steam compressing and absorbing combined type heat pump hot water unit running method | |
| CN107323217A (en) | A kind of CO of waste heat driving absorption refrigeration auxiliary supercooling2Air conditioning for automobiles | |
| CN107631511A (en) | The CO of auxiliary supercooling based on hydraulic recovery2Middle cryogenic freezing refrigerating system | |
| CN207350986U (en) | The CO2 freezing and refrigerating systems of devaporizer supercooling based on hydraulic recovery | |
| CN105004095B (en) | A kind of trans critical cycle and the combined heat-pump system of two-stage absorption heat pump coproduction | |
| CN207350988U (en) | Cryogenic freezing refrigerating system in the CO2 of auxiliary supercooling based on hydraulic recovery | |
| CN106152608B (en) | A kind of hybrid system of combination air compression system and heat pump system | |
| CN109506391A (en) | Thermal drivers are without the Trans-critical cycle CO for pumping absorption auxiliary supercooling2Refrigeration system | |
| CN105019954B (en) | Combined cycle energy supplying system | |
| CN105041396B (en) | Combined cycle energy supplying system | |
| CN109944653A (en) | A kind of carbon dioxide trans-critical cycle combined power and cooling system | |
| CN105509359A (en) | Phase change wave rotor self-cascade refrigeration system and working method thereof | |
| CN105371516B (en) | Carbon dioxide twin-stage cold-hot combined supply system | |
| CN104963733B (en) | Combined cycle energy supplying system | |
| CN106642681A (en) | Air-energy water heater circulation system and operating method thereof | |
| CN201621890U (en) | Multi-functional heat pump circulation unit taking carbon dioxide as refrigeration working medium | |
| CN206953941U (en) | A kind of CO2 air conditioning for automobiles of waste heat driving absorption refrigeration auxiliary supercooling | |
| CN209541223U (en) | Refrigeration system of the thermal drivers without the transcritical CO_2 for pumping absorption auxiliary supercooling | |
| CN214665330U (en) | With CO2Refrigerating system as refrigerant and secondary refrigerant system thereof | |
| CN110500802A (en) | Cold storage supercooling Trans-critical cycle integrates CO2Refrigeration system | |
| CN107364564B (en) | Absorption-type and thermoelectric refrigeration CO-assisted supercooling CO 2 Refrigerating system for ship |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190322 |