CN110500686A - A kind of multi-temperature zone multi-generation system - Google Patents
A kind of multi-temperature zone multi-generation system Download PDFInfo
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- CN110500686A CN110500686A CN201910834729.1A CN201910834729A CN110500686A CN 110500686 A CN110500686 A CN 110500686A CN 201910834729 A CN201910834729 A CN 201910834729A CN 110500686 A CN110500686 A CN 110500686A
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- 239000007788 liquid Substances 0.000 claims abstract description 44
- 239000003507 refrigerant Substances 0.000 claims abstract description 40
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000002427 irreversible effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 2
- 238000004093 laser heating Methods 0.000 abstract 1
- 235000013305 food Nutrition 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 235000013365 dairy product Nutrition 0.000 description 3
- 235000013601 eggs Nutrition 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- 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
- F25B41/30—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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of multi-temperature zone multi-generation systems.The present invention includes each temperature grade system, is made of compressor, medium temperature grade condenser, high-temperature level condenser, medium temperature grade evaporator, low-temperature level evaporator, throttle valve, gas-liquid separator.This system can realize multi-temperature zone multiple-supplying function, it can be achieved that simultaneously not the refrigeration of equality of temperature grade, heat supply, domestic hot-water processed function.The multi-stage booster and multi-stage condensing multistage evaporation process of refrigerant are realized to the multiple laser heating of air (water) by multi-stage condensing process, are significantly reduced the heat exchange irreversible loss of air (water) heating process.By multistage evaporation process, improving energy efficiency is increased economic efficiency.
Description
Technical field
The present invention relates to refrigeration, heating technology field more particularly to a kind of multi-temperature zone multi-generation systems.
Background technique
Energy and environment problem already becomes an important factor for limitation China's economy and society development.Field of Refrigeration and Air-conditioning
Highly energy-consuming and its common concern for causing people to the pollution of environment, at the same also become limitation refrigeration air-conditioner development restriction because
Element.For civilian and commercial application field, multi-temperature zone refrigeration and heat demand increasingly increase severely.Current solution is logical mostly
The use of two or more equipment is crossed to reach the requirement of different warm areas, not only causes the significant wastage of the energy in this way, also
Environment can be damaged.Moreover, the refrigerant of most of equipment fillings is also mostly the high GWP working medium such as HFCs.
Summary of the invention
It is an object of that present invention to provide a kind of novel multi-temperature zone multi-generation systems, transfer energy into institute using machine set system
It needs in space, meets the needs of user is to required space temperature etc..
Multi-temperature zone multi-generation system is mainly by compressor, gas-liquid separator, high-temperature level condenser, medium temperature grade condenser, low
Warm grade evaporator, medium temperature grade evaporator and throttle valve composition.
After refrigerant of the low-pressure stage compressor compresses from low-temperature level evaporator and flow through the refrigeration in medium temperature grade evaporator
Agent mixing, after a segment pipe, and after being mixed with the refrigerant gas after throttling in gas-liquid separator one
It is compressed again through medium pressure grade compressor.Compressed refrigerant gas is divided into two-way, all the way then and in gas-liquid separator two
It throttles, throttles after flowing through high-temperature level condenser after high pressure stage compressor is compressed again after refrigerant gas mixing
The refrigerant of gas-liquid two-phase state afterwards is stored in gas-liquid separator two, is in addition then to flow through medium temperature grade condenser all the way
(refrigerant side) flows through after being mixed afterwards with the refrigerant liquid in gas-liquid separator two after the throttle throttling to gas-liquid point
From device one.Gas of the gas after throttling and in low-pressure stage compressor and medium temperature grade evaporator in gas-liquid separator one into
It is sucked after row mixing by medium pressure grade compressor；And the refrigerant liquid in gas-liquid separator one is then divided into two-way, all the way through throttling
It flows through medium temperature grade evaporator after valve throttling to be mixed with the gas after low-pressure stage compressor compresses, another way is then through throttle valve
The refrigerant of gas-liquid two-phase state after throttling is sucked after flowing through low-temperature level evaporator by low-pressure stage compressor, repeatedly, complete
At circulation.
The working medium used be can be used R1234ze (Z), R1234ze (E), R1233zd (E), R1224yd (Z),
The pure refrigerant such as R1336mzz (Z), R365mfc, R1234yf, R245fa, can also be used CO2/R1234ze(E)、CO2/
R1234ze(Z)、CO2/R1234yf、R41/R1234ze(E)、R41/R1234ze(Z)、R41/R1234yf、R32/R1234ze
(E), the non-azeotropic mixed working mediums such as R32/R1234ze (Z), R32/R1234yf.
Hot water first flows through low-temperature level condenser and exchanges heat, and water temperature increases, and enters back into high-temperature level condenser and exchanges heat, water
Temperature continues to increase, and by exchanging heat twice, can reduce the irreversible loss of heat transfer process.
Low-temperature level evaporator, medium temperature grade evaporator can be individually positioned in different bunker or freezer, be come with this
Reach the requirement of different warm areas.Low-temperature level evaporator can store the food such as meat, fish；Medium temperature grade evaporator temperature is slightly higher,
Dairy products, vegetable and fruit, eggs etc. can be stored.Low-temperature level evaporator, medium temperature grade evaporator are also used as Summer Indoor room
Between refrigeration.
Compared with prior art, the advantages and positive effects of the present invention are:
(1) refrigerant of multi-temperature zone multi-generation system is or mixtures thereof low GWP working medium, is environmental-friendly refrigerant,
Greenhouse effects are alleviated significantly, and environment-friendly advantage is obvious.
(2) function of a variety of warm areas can be realized in multi-temperature zone multi-generation system using set of system, and integration of equipments is
It unites compact, facilitates the demand of different warm areas, reduce equipment land occupation.
(3) opposite conventional heat pump system, water flow successively through the medium temperature grade condenser and high-temperature level condenser of different potential temperatures, water
More excellent with the Temperature Matching of working medium, heat exchange mean temperature difference is obviously reduced, and reduces heat exchange irreversible loss, system energy efficiency mentions
It rises.
(4) compared with traditional single stage and two-stage compression heat pump system, the refrigerant flow for flowing through high-temperature level compressor is significant
Reduce, reduces the volume and cost of high-temperature level compressor, alleviate the volume, weight and initial cost of system, system is more stepped up
It gathers.
(5) when system is according to mix refrigerant, the irreversible loss of heat transfer process can be obviously reduced, so that the energy obtains
It is used to more reasonable, system effectiveness is promoted.
Detailed description of the invention
Fig. 1 is system schematic of the invention；
Fig. 2 is system schematic of the invention.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows:
Embodiment 1: two-stage co-feeding system, its working principle is that:
Step 1: after refrigerant of the compression of low-pressure stage compressor 1 from low-temperature level evaporator 4 and flowing through medium temperature grade evaporator
In 2 refrigerant mixing, after a segment pipe, but with the refrigerant after throttle valve 37 in gas-liquid separator 1
Gas is compressed after being mixed through medium pressure grade compressor 8.
Step 2: compressed refrigerant gas is divided into two-way, all the way then with the refrigerant gas in gas-liquid separator 2 10
Flowed through after high pressure stage compressor 11 is compressed again after body mixing enter after high-temperature level condenser 12 throttle valve 4 13 into
Row throttling, the refrigerant of the gas-liquid two-phase state after throttling are stored in gas-liquid separator 2 10, are in addition then stream all the way
Through throttle valve two after being mixed after medium temperature grade condenser 9 (refrigerant side) with the refrigerant liquid in gas-liquid separator 2 10
It flows through after 5 throttlings to gas-liquid separator 1.
Step 3: the gas in gas-liquid separator 1 is after throttle valve 37 and from low-pressure stage compressor 1 and medium temperature grade
Gas in evaporator 2 is sucked after being mixed by medium pressure grade compressor 8；And the refrigerant liquid in gas-liquid separator 1 is then
Be divided into two-way, flowed through after the throttling of throttle valve 5 14 all the way medium temperature grade evaporator 2 and the compressed gas of low-pressure stage compressor 1 into
Row mixing, another way are then that the refrigerant of the gas-liquid two-phase state after the throttling of throttle valve 1 flows through quilt after low-temperature level evaporator 4
Low-pressure stage compressor 1 sucks, and repeatedly, completes circulation.
High-temperature level condenser can be used for preparing high-temperature-hot-water etc.；Medium temperature grade condenser can be used for producing domestic hot-water etc.；In
Warm grade evaporator can be used for the storage of food (dairy products, eggs)；Low-temperature level evaporator can be used for the food such as frozen meat；According to
Different demands, two kinds of evaporators can be also used for the cooling etc. of indoor room.
Embodiment 2: three-level co-feeding system, its working principle is that:
Step 1: after refrigerant of the compression of low-pressure stage compressor 1 from low-temperature level evaporator 4 and flowing through medium temperature grade evaporator
Refrigerant mixing in 2, after a segment pipe, mixed refrigerant gas is sucked and is compressed by medium pressure grade compressor 8.
Step 2: be divided into two-way by the compressed refrigerant of medium pressure grade compressor 8, all the way then with gas-liquid separator 2 10
It is carried out after flowing through high-temperature level condenser 12 after high pressure stage compressor 11 is compressed again after interior refrigerant gas mixing
The refrigerant of throttle valve 4 13, the gas-liquid two-phase state after throttling is stored in gas-liquid separator 2 10；Another way and come
It is mixed from the refrigerant in gas-liquid separator 1 by the compressed gas of the second medium pressure grade compressor 15, flows through medium temperature
Grade condenser 9, then mixed again with the refrigerant liquid in gas-liquid separator 2 10, through throttle valve 25 throttling after flow through to
Gas-liquid separator 1.
Step 3: the gas in gas-liquid separator 1 is sucked and is compressed by the second medium pressure grade compressor 15, and gas-liquid separation
Refrigerant liquid in device 1 is then divided into two-way, flows through medium temperature grade evaporator 2 and low-pressure stage after the throttling of throttle valve 5 14 all the way
The compressed gas of compressor 1 is mixed, and another way is then the refrigerant of the gas-liquid two-phase state after the throttling of throttle valve 1
It is sucked after flowing through low-temperature level evaporator 4 by low-pressure stage compressor 1, repeatedly, completes circulation.
High-temperature level condenser can be used for preparing high-temperature-hot-water etc.；Medium temperature grade condenser can be used for producing domestic hot-water etc.；In
Warm grade evaporator can be used for the storage of food (dairy products, eggs)；Low-temperature level evaporator can be used for the food such as frozen meat；According to
Different demands, two kinds of evaporators can be also used for the cooling etc. of indoor room.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of, within these are all belonged to the scope of protection of the present invention.
Claims (3)
1. a kind of multi-temperature zone multi-generation system, which is characterized in that including low-pressure stage compressor, medium pressure grade compressor, hiigh pressure stage pressure
Contracting machine, high-temperature level condenser, medium temperature grade condenser, medium temperature grade evaporator, low-temperature level evaporator and gas-liquid separator；
The low pressure stage compressor outlet is connected with medium temperature grade evaporator outlet and medium pressure grade suction port of compressor respectively, medium pressure
Stage compressor outlet is connected with medium temperature grade condenser refrigerant side entrance respectively and high pressure stage compressor entrance is connected, the high pressure
Stage compressor outlet is connected with high-temperature level condenser refrigerant side entrance, the high-temperature level condenser and four entrance phase of throttle valve
Even, the outlet of throttle valve four is connected with two entrance of gas-liquid separator, two gas vent of gas-liquid separator and hiigh pressure stage pressure
Contracting machine entrance be connected, two liquid outlet of gas-liquid separator respectively with medium temperature grade condenser refrigerant side outlet and throttle valve two
Entrance is connected, and the outlet of throttle valve two is connected with one entrance of gas-liquid separator, one gas vent of gas-liquid separator and institute
It states three entrance of throttle valve to be connected, the outlet of throttle valve three is connected with medium pressure grade suction port of compressor, and medium pressure grade compressor goes out
Mouthful be connected with medium temperature grade condenser inlet, one liquid outlet of gas-liquid separator respectively with five entrance of throttle valve and throttle valve one
Entrance is connected, and the outlet of throttle valve five is connected with medium temperature grade evaporator inlet；It is evaporated with low-temperature level the outlet of throttle valve one
Device entrance is connected, and the low-temperature level evaporator outlet is connected with low-pressure stage suction port of compressor.
2. multi-temperature zone multi-generation system according to claim 1, which is characterized in that the low-temperature level evaporator, medium temperature grade
Evaporator is fin-tube heat exchanger；Medium temperature grade condenser, high-temperature level condenser are double pipe heat exchanger.
3. multi-temperature zone multi-generation system according to claim 1, which is characterized in that the working medium used using R1234ze,
The pure refrigerant of R1234ze, R1233zd, R1224yd, R1336mzz, R365mfc, R1234yf, R245fa, or use
R1234ze/CO2、R1234ze/CO2、R1234yf/CO2、R1234ze/R41、R1234ze/R41、R1234yf/R41、
R1234ze/R32, R1234ze/R32, R1234yf/R32 non-azeotropic mixed working medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834729.1A CN110500686B (en) | 2019-09-05 | 2019-09-05 | Multi-temperature-zone multi-combined supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910834729.1A CN110500686B (en) | 2019-09-05 | 2019-09-05 | Multi-temperature-zone multi-combined supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110500686A true CN110500686A (en) | 2019-11-26 |
| CN110500686B CN110500686B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910834729.1A Active CN110500686B (en) | 2019-09-05 | 2019-09-05 | Multi-temperature-zone multi-combined supply system |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489130A (en) * | 2018-06-06 | 2018-09-04 | 深圳市派沃新能源科技股份有限公司 | A kind of screw single machine three stage compression heat pump heating system and control method |
| CN117073256A (en) * | 2023-08-07 | 2023-11-17 | 同方智慧能源有限责任公司 | Snow field double-temperature-zone refrigerating system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432663A (en) * | 1990-05-29 | 1992-02-04 | Matsushita Electric Ind Co Ltd | Refrigeration cycle arrangement |
| CA2283605A1 (en) * | 1999-09-09 | 2001-03-09 | Jordan Kantchev | Refrigeration system with heat reclaim and with floating condensing pressure |
| KR101206794B1 (en) * | 2012-10-18 | 2012-11-30 | (주) 액트 | Heat Pump System With 2- Stage cascade Refrigeration Cycle |
| CN108106045A (en) * | 2018-01-26 | 2018-06-01 | 鲁东大学 | A kind of air-conditioning refrigerator combined system of central refrigerating split cooling |
| CN210861509U (en) * | 2019-09-05 | 2020-06-26 | 天津商业大学 | Multi-temperature-zone multi-joint supply system |
-
2019
- 2019-09-05 CN CN201910834729.1A patent/CN110500686B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432663A (en) * | 1990-05-29 | 1992-02-04 | Matsushita Electric Ind Co Ltd | Refrigeration cycle arrangement |
| CA2283605A1 (en) * | 1999-09-09 | 2001-03-09 | Jordan Kantchev | Refrigeration system with heat reclaim and with floating condensing pressure |
| KR101206794B1 (en) * | 2012-10-18 | 2012-11-30 | (주) 액트 | Heat Pump System With 2- Stage cascade Refrigeration Cycle |
| CN108106045A (en) * | 2018-01-26 | 2018-06-01 | 鲁东大学 | A kind of air-conditioning refrigerator combined system of central refrigerating split cooling |
| CN210861509U (en) * | 2019-09-05 | 2020-06-26 | 天津商业大学 | Multi-temperature-zone multi-joint supply system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489130A (en) * | 2018-06-06 | 2018-09-04 | 深圳市派沃新能源科技股份有限公司 | A kind of screw single machine three stage compression heat pump heating system and control method |
| CN117073256A (en) * | 2023-08-07 | 2023-11-17 | 同方智慧能源有限责任公司 | Snow field double-temperature-zone refrigerating system |
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| CN110500686B (en) | 2024-08-02 |
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