CN108518889A - A kind of afterheat increasing efficiency compression-jet refrigeration circulation system and its refrigerating method - Google Patents
A kind of afterheat increasing efficiency compression-jet refrigeration circulation system and its refrigerating method Download PDFInfo
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- CN108518889A CN108518889A CN201810296807.2A CN201810296807A CN108518889A CN 108518889 A CN108518889 A CN 108518889A CN 201810296807 A CN201810296807 A CN 201810296807A CN 108518889 A CN108518889 A CN 108518889A
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- condenser
- injector
- entrance
- solenoid valve
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Classifications
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- 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
-
- 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
- F25B41/40—Fluid line arrangements
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention belongs to art of refrigeration units, and disclose a kind of afterheat increasing efficiency compression injection cooling cycle system, including compressor, evaporator, injector, condenser, refrigerated medium pump and heater exhaust gas, compressor is separately connected the first solenoid valve and evaporator, compressor connects first check valve, first check valve is separately connected the injector and the condenser, and condenser is separately connected the second solenoid valve and the throttling set, and throttling set connects the evaporator；First solenoid valve connects the second check valve, and the second check valve connects injector；Second solenoid valve connects heater exhaust gas by refrigerated medium pump, and heater exhaust gas connects third check valve, and third check valve connects injector.This circulator can both be directly driven by engine tail gas waste-heat, can also be directly driven or electric energy engine tail gas waste-heat while be driven by electric energy, so as to which the vehicle energy consumption of cold chain system is greatly reduced.
Description
Technical field
The invention belongs to art of refrigeration units, more particularly, to a kind of afterheat increasing efficiency compression-jet refrigeration circulation system
And its refrigerating method.
Background technology
In modern logistics industry, cold chain transportation meets high-end demand of logistic service.What cold chain transportation can be produced
Product, food etc. realize that whole process freeze preservation transports between production base to client, substantially increases the experience of client.It is cold
The key technology of chain transport is vehicle-mounted freezing and refrigerating system.And the key core technology of vehicle-mounted freezing and refrigerating system is exactly skill of freezing
Art.In present cold chain vehicle-mounted refrigerating system, the Vapor Compression Refrigeration Cycle of generally use routine, the vehicle-mounted freezing and refrigeration of cold chain
System is divided into two types, and the respectively freestanding independent vapor compression refrigeration system by generator electrical energy drive is another
Kind is the vapor compression refrigeration system of dependent formula driven by engine shaft power.Although two kinds of refrigeration system forms are different,
But the energy consumed is all high-grade energy, eventually results in the additional consumption of fuel oil.This results in the refrigeration of cold chain vehicle
System competes fuel oil with engine, causes vehicle cruising ability to decline, has reduced the efficiency of long-distance cold chain vehicle.
In cold chain vehicle normal driving process, the tail gas of engine emission carries a large amount of available energy, referred to as
Waste heat.Studies have shown that the thermal energy that motor exhaust carries is equivalent to fuel oil provides total energy 50% or so, that is to say, that
Most fuel oil energy, which cannot efficiently use, to be just discharged, and the waste of big energy is caused.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of afterheat increasing efficiency compression-injection systems
On the one hand SAPMAC method system and its refrigerating method can substantially increase the ability of vehicle-mounted freezing and refrigerating system, on the other hand may be used
To effectively reduce vehicle fuel consumption so that efficiency of energy utilization greatly improves.
To achieve the above object, according to one aspect of the present invention, a kind of afterheat increasing efficiency compression-ejector refrigeration is provided to follow
Loop system, be suitable for the vehicle-mounted freezing and refrigerating system of cold chain, which is characterized in that including compressor, evaporator, injector, condenser,
Refrigerated medium pump and heater exhaust gas, wherein
The entrance of the compressor is separately connected the outlet of the entrance and the evaporator of the first solenoid valve, the compressor
Outlet connect the entrance of first check valve, the outlet of first check valve be separately connected the outlet of the injector with
The entrance of the condenser, the outlet of the condenser are separately connected the entrance of the second solenoid valve and the throttling set
Entrance, the outlet of the throttling set connect the entrance of the evaporator；
First solenoid valve outlet connection the second check valve entrance, second check valve outlet connection described in
The first entrance of injector；
The outlet of the second solenoid valve connects the entrance of the heater exhaust gas, the tail gas by the refrigerated medium pump
The entrance of the outlet connection third check valve of heater, the outlet of the third check valve connect the second of the injector and enter
Mouthful.
Preferably, the throttling set is throttle valve or capillary.
Preferably, it is provided with fan by the condenser.
Other side according to the invention additionally provides a kind of list of afterheat increasing efficiency compression-jet refrigeration circulation system
Only vapor compression refrigeration method, which is characterized in that the first solenoid valve, second solenoid valve are turned off, and compressor is by refrigerant compression
Enter the condenser afterwards to condense, refrigerant liquid enters evaporator refrigeration after throttle mechanism throttles and completes refrigeration cycle.
Other side according to the invention additionally provides a kind of list of afterheat increasing efficiency compression-jet refrigeration circulation system
Only tail gas energy refrigerating method, which is characterized in that compressor is closed, and the first solenoid valve, second solenoid valve are opened, heater exhaust gas
In refrigerant be heated to entering injector through pipeline after steam condition by engine tail gas waste-heat, the refrigerant in evaporator
Enter injector in steam condition, this two parts steam is injected into condenser, condenser and outside after being mixed in injector
Environment exchanges heat so that refrigerant is condensed into liquid, and the refrigerant liquid of condensator outlet is divided into two parts outflow, and a part is through throttling
Enter evaporator refrigeration after valve throttling, another part is pumped into heater exhaust gas by refrigerated medium pump, to complete refrigeration cycle.
Other side according to the invention additionally provides a kind of steaming of afterheat increasing efficiency compression-jet refrigeration circulation system
Air pressure contracting and vapour injection compound-refrigerating method, which is characterized in that compressor, the first solenoid valve, second solenoid valve are opened, pressure
Contracting machine will be condensed with steam condition into the condenser after refrigerant compression；
Refrigerant in heater exhaust gas is heated to entering injector through pipeline after steam condition by engine tail gas waste-heat,
Refrigerant in evaporator also enters injector in steam condition, this two parts steam mixes in injector, and injector again will
Refrigerant injection is into condenser；
Condenser exchanges heat with external environment so that refrigerant is condensed into liquid, and the refrigerant liquid of condensator outlet is divided to two
It distributing, a part enters evaporator refrigeration after the throttle throttling, and another part is pumped into heater exhaust gas by refrigerated medium pump, from
And complete refrigeration cycle.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect：
The cooling cycle system of the present invention is additional to increase other than having the refrigerating capacity of conventional Vapor Compression Refrigeration Cycle
With the steam jet refrigeration part of heat-driven so that Vapor Compression Refrigeration Cycle intercouples with jet refrigeration circulation, whole
A cycle can both be directly driven by engine tail gas waste-heat, can also be directly driven by electric energy or electric energy-motor exhaust
Waste heat drives simultaneously, so as to which the vehicle energy consumption of cold chain system is greatly reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram of afterheat increasing efficiency compression-jet refrigeration circulation system in the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
Referring to Fig.1, a kind of afterheat increasing efficiency compression-jet refrigeration circulation system is suitable for the vehicle-mounted freezing and refrigerating system of cold chain,
Including compressor 1, evaporator 3, injector 9, condenser 7, refrigerated medium pump 5 and heater exhaust gas 8, wherein
The entrance of the compressor 1 is separately connected the outlet of the entrance and the evaporator of the first solenoid valve 2, the compression
The outlet of machine 1 connects the entrance of first check valve 11, and the outlet of first check valve 11 is separately connected the injector 9
Outlet and the condenser 7 entrance, the outlet of the condenser 7 is separately connected entrance and the institute of the second solenoid valve 6
The entrance of throttling set is stated, the outlet of the throttling set connects the entrance of the evaporator 3；
The entrance of the second check valve 12 of outlet connection of first solenoid valve 2, the outlet of second check valve 12 connects
Connect the first entrance of the injector 9；
The outlet of the second solenoid valve 6 connects the entrance of the heater exhaust gas 8 by the refrigerated medium pump 5, described
The entrance of the outlet connection third check valve 10 of heater exhaust gas 8, the outlet of the third check valve 10 connects the injector 9
Second entrance.
Further, the throttling set is throttle valve or capillary.
Further, it is provided with fan by the condenser 7, to increase convection current.
The operating mode of this afterheat increasing efficiency compression-jet refrigeration circulation system can be divided into three kinds of operating modes, respectively singly
Only mechanical or electrical energy drive mode (independent vapor compression refrigeration pattern), independent tail gas energy drive mode (independent vapour injection
Refrigeration mode), tail gas energy and electric energy or mechanical energy coupling driving pattern (steam compressed and vapour injection compound-refrigerating pattern).When
When being operated in mechanical energy work electrical energy drive pattern, solenoid valve is turned off, and the workpiece of system is compressor 1, condenser 7, section
Flow mechanism 4 and evaporator 3.Compressor 1 will condense after refrigerant compression into condenser 7, and refrigerant liquid is saved through throttle mechanism 4
Enter the refrigeration of evaporator 3 after stream and completes refrigeration cycle.When system is operated in tail gas energy drive mode, system compressors 1 are closed,
First solenoid valve 2, second solenoid valve 6 are opened, and in heater exhaust gas 88, refrigerant is heated supreme by engine tail gas waste-heat
Warm high pressure conditions enter injector 9 through pipeline and spray.The refrigerant vapour for coming the outlet of flash-pot 3 of 9 injection of injector and master
Enter condenser 7 after the mixing of ejector refrigeration agent steam, condenser 7 exchanges heat with environment so that refrigerant is condensed into liquid.Condenser 7
The refrigerant liquid of outlet is divided into two parts, and a part enters evaporator 3 and freezes after the throttle throttling, and another part is by refrigerant
Pump 5 is pumped into heater exhaust gas 8, completes cycle.System at this time is driven by waste heat from tail gas completely, the nothing other than refrigerated medium pump 5
Power consuming devices, therefore efficient, good energy-conserving effect.It is especially laden in food when cold chain vehicle normally travel
It one section, needs video fast cooling, cooling load demand at this time is big, needs to open simultaneously compressor 1 at this time so that compression
Refrigeration cycle and jet refrigeration circulation work at the same time.Therefore, system can be operated in tail gas driving and electric energy or mechanical energy driving mould
Formula, the opening of compressor 1, the first solenoid valve 2, second solenoid valve 6 are also opened, the refrigerant vapour one that evaporator 3 exports at this time
Part is entered condenser 7 after the sucking compression of compressor 1, another part is entered condenser 7 after the sucking injection of injector 9,
So that circulating mass of refrigerant greatly improves, the refrigerating capacity of system also greatly improves.
It integrates, both vapor compression-injection compound system proposed by the present invention suitable for the vehicle-mounted freezing and refrigerating system of cold chain
SAPMAC method can efficiently use engine tail gas waste-heat synergy, while increasing complete machine refrigerating capacity, improve energy profit
With efficiency, reduce cold chain vehicle vehicle fuel consumption, improves cruising ability.Meanwhile system can be under three kinds of saving operation modes
Any switching laws are capable of the demand of good conformity different load.In addition, system is on the basis of one-stage steam compressed refrigeration cycle,
A refrigerated medium pump 5 and heater exhaust gas 8 and several valves are only increased newly, due to the introducing of steam jet refrigeration synergy so that pressure
1 type selecting of contracting machine can reduce 1 load of compressor, can reduce cost to a certain extent.
Three kinds of saving operation modes of the present invention can be worked with any switching laws to adapt to different operating mode cooling load demands,
And it is simple in structure, control is easy.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of afterheat increasing efficiency compression-jet refrigeration circulation system, is suitable for the vehicle-mounted freezing and refrigerating system of cold chain, feature exists
In, including compressor, evaporator, injector, condenser, refrigerated medium pump and heater exhaust gas, wherein
The entrance of the compressor is separately connected the outlet of the entrance and the evaporator of the first solenoid valve, and the compressor goes out
Mouthful connect the entrance of first check valve, the outlet of first check valve is separately connected the outlet of the injector and described
The outlet of the entrance of condenser, the condenser is separately connected the entrance of the second solenoid valve and entering for the throttling set
Mouthful, the outlet of the throttling set connects the entrance of the evaporator；
The entrance of the second check valve of outlet connection of first solenoid valve, the outlet of second check valve connects the injection
The first entrance of device；
The outlet of the second solenoid valve connects the entrance of the heater exhaust gas, the tail gas heating by the refrigerated medium pump
The entrance of the outlet connection third check valve of device, the outlet of the third check valve connects the second entrance of the injector.
2. a kind of afterheat increasing efficiency compression-jet refrigeration circulation system according to claim 1, which is characterized in that the section
It is throttle valve or capillary to flow device.
3. a kind of afterheat increasing efficiency compression-jet refrigeration circulation system according to claim 1, which is characterized in that described cold
Fan is provided with by condenser.
4. a kind of independent vapor compression refrigeration method of afterheat increasing efficiency compression-jet refrigeration circulation system described in claim 1,
It is characterized in that, the first solenoid valve, second solenoid valve are turned off, compressor will enter the condenser after refrigerant compression cold
Solidifying, refrigerant liquid enters evaporator refrigeration after throttle mechanism throttles and completes refrigeration cycle.
5. a kind of independent tail gas energy refrigerating method of afterheat increasing efficiency compression-jet refrigeration circulation system described in claim 1,
It is characterized in that, compressor is closed, and the first solenoid valve, second solenoid valve are opened, and the refrigerant in heater exhaust gas is by engine
Waste heat from tail gas is heated to entering injector through pipeline after steam condition, and the refrigerant in evaporator also enters injection in steam condition
Device, this two parts steam are injected into condenser after being mixed in injector, condenser exchanges heat with external environment so that refrigerant
It is condensed into liquid, the refrigerant liquid of condensator outlet is divided into two parts outflow, and a part enters evaporator after the throttle throttling
Refrigeration, another part is pumped into heater exhaust gas by refrigerated medium pump, to complete refrigeration cycle.
6. a kind of steam compressed and vapour injection of afterheat increasing efficiency compression-jet refrigeration circulation system described in claim 1 is multiple
Close refrigerating method, which is characterized in that compressor, the first solenoid valve, second solenoid valve are opened, and compressor will be after refrigerant compression
It is condensed into the condenser with steam condition；
Refrigerant in heater exhaust gas is heated to entering injector through pipeline after steam condition by engine tail gas waste-heat, evaporation
Refrigerant in device also enters injector in steam condition, this two parts steam mixes in injector, and injector again will refrigeration
Agent is injected into condenser；
Condenser exchanges heat with external environment so that refrigerant is condensed into liquid, and the refrigerant liquid of condensator outlet is divided into two parts stream
Go out, a part enters evaporator refrigeration after the throttle throttling, and another part is pumped into heater exhaust gas by refrigerated medium pump, to complete
At refrigeration cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810296807.2A CN108518889A (en) | 2018-03-30 | 2018-03-30 | A kind of afterheat increasing efficiency compression-jet refrigeration circulation system and its refrigerating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810296807.2A CN108518889A (en) | 2018-03-30 | 2018-03-30 | A kind of afterheat increasing efficiency compression-jet refrigeration circulation system and its refrigerating method |
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| Publication Number | Publication Date |
|---|---|
| CN108518889A true CN108518889A (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810296807.2A Pending CN108518889A (en) | 2018-03-30 | 2018-03-30 | A kind of afterheat increasing efficiency compression-jet refrigeration circulation system and its refrigerating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453876A (en) * | 2018-10-26 | 2019-03-12 | 四川大学 | Flow of superheated steam ultra-fine grinding tail gas condensing-boil closed loop process again |
| CN112268376A (en) * | 2020-09-15 | 2021-01-26 | 珠海格力电器股份有限公司 | Fluorine pump type heat pipe and jet refrigeration cycle composite system and control method thereof |
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| US20030140651A1 (en) * | 2002-01-30 | 2003-07-31 | Hirotsugu Takeuchi | Refrigerant cycle system with ejector pump |
| CN1749674A (en) * | 2005-09-29 | 2006-03-22 | 上海交通大学 | Compressor/heat source mixed driven automobile air conditioning refrigerating system |
| CN103438609A (en) * | 2013-09-18 | 2013-12-11 | 上海交通大学 | Refrigeration system by utilizing tail gas of fishing boat |
| CN104930751A (en) * | 2015-05-29 | 2015-09-23 | 浙江工业大学 | Injection-compression refrigerating system provided with subcooler and utilizing low-grade heat energy |
-
2018
- 2018-03-30 CN CN201810296807.2A patent/CN108518889A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030140651A1 (en) * | 2002-01-30 | 2003-07-31 | Hirotsugu Takeuchi | Refrigerant cycle system with ejector pump |
| CN1749674A (en) * | 2005-09-29 | 2006-03-22 | 上海交通大学 | Compressor/heat source mixed driven automobile air conditioning refrigerating system |
| CN103438609A (en) * | 2013-09-18 | 2013-12-11 | 上海交通大学 | Refrigeration system by utilizing tail gas of fishing boat |
| CN104930751A (en) * | 2015-05-29 | 2015-09-23 | 浙江工业大学 | Injection-compression refrigerating system provided with subcooler and utilizing low-grade heat energy |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453876A (en) * | 2018-10-26 | 2019-03-12 | 四川大学 | Flow of superheated steam ultra-fine grinding tail gas condensing-boil closed loop process again |
| CN109453876B (en) * | 2018-10-26 | 2020-05-26 | 四川大学 | Condensation-reboiling closed circulation method for tail gas generated by ultrafine grinding of superheated steam |
| CN112268376A (en) * | 2020-09-15 | 2021-01-26 | 珠海格力电器股份有限公司 | Fluorine pump type heat pipe and jet refrigeration cycle composite system and control method thereof |
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