CN108302670A - Air conditioning unit - Google Patents
Air conditioning unit Download PDFInfo
- Publication number
- CN108302670A CN108302670A CN201711395829.6A CN201711395829A CN108302670A CN 108302670 A CN108302670 A CN 108302670A CN 201711395829 A CN201711395829 A CN 201711395829A CN 108302670 A CN108302670 A CN 108302670A
- Authority
- CN
- China
- Prior art keywords
- cooling
- heat exchanger
- water
- air
- conditioner set
- 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
- 238000004378 air conditioning Methods 0.000 title abstract description 6
- 239000000498 cooling water Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000007710 freezing Methods 0.000 claims description 26
- 230000008014 freezing Effects 0.000 claims description 26
- 108091006146 Channels Proteins 0.000 claims description 23
- 102000010637 Aquaporins Human genes 0.000 claims description 17
- 108010063290 Aquaporins Proteins 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 102000004363 Aquaporin 3 Human genes 0.000 description 7
- 108090000991 Aquaporin 3 Proteins 0.000 description 7
- 238000010977 unit operation Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 102000011899 Aquaporin 2 Human genes 0.000 description 1
- 108010036221 Aquaporin 2 Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air conditioning unit which comprises a refrigerant circulating channel, a cooling water channel, a chilled water channel and a first heat exchanger, wherein the cooling water channel and the chilled water channel are communicated with the first heat exchanger. According to the air conditioning unit provided by the invention, the first heat exchanger is arranged, so that heat exchange can be carried out between the cooling water channel and the chilled water channel, the chilled water is subjected to first-stage cooling by using the cooling water, the temperature difference at the end of the evaporator is reduced, and the purpose of reducing the work of the compressor is achieved.
Description
Technical field
The present invention relates to air conditioner technical field, especially a kind of air-conditioner set.
Background technology
For central air conditioner system, power consumption is all the difficulty that Air-conditioning Enterprise is difficult to overcome all the time greatly, existing
Air-conditioner set be all directly using compressor work complete heat exchange, encounter load it is larger in the case of often can only increase machine
Group power is to meet cold, and the method for domestic refrigeration modes generally use is exactly directly to utilize inverse Carnot cycle system at present
Cold heat exchange, heat transfer effect is poor, while needing to consume a large amount of electric energy, and when extraneous institute's chilling requirement is larger, and air-conditioning is easy
Running overload, such as large-scale plant area and base station, freezing inflow temperature can easily exceed 30 DEG C, and unit operation is easy to overload
Operating, and the cold needed is very huge, power consumption also sharply increases.
Invention content
In order to solve the above-mentioned technical problem, it provides and a kind of level-one heat exchange and power consumption being carried out to chilled water using cooling water
Low air-conditioner set.
A kind of air-conditioner set, including refrigerant circulation channel, cooling-water duct, freezing aquaporin and First Heat Exchanger, it is described
Cooling-water duct and the freezing aquaporin are connected to the First Heat Exchanger, the cooling water of the cooling-water duct and described
The chilled water of freezing aquaporin carries out heat exchange in the First Heat Exchanger, and described cold after the First Heat Exchanger
Freeze the chilled water in aquaporin and the cooling water in the cooling-water duct after the First Heat Exchanger respectively with it is described
Refrigerant in refrigerant circulation channel carries out heat exchange.
The air-conditioner set includes compressor, evaporator, throttling set and condenser, the compressor, the condenser,
The throttling set and the evaporator are sequentially communicated to form the refrigerant heat exchanger channels, the cooling-water duct and the refrigerant
Heat exchanger channels heat exchange at the condenser, the freezing aquaporin are warm at the evaporator with the refrigerant heat exchanger channels
It exchanges.
The air-conditioner set further includes cooling well and back water well, the cooling well, the First Heat Exchanger, described cold
Condenser is sequentially connected to form the cooling-water duct with the back water well.
The condenser is shell and tube exchanger, and the shell side of the shell and tube exchanger forms the part refrigerant circulation
Channel, tube side form the part cooling-water duct.
The depth bounds of the cooling well and/or the back water well are 5-10m.
The air-conditioner set further includes user terminal, and the user terminal, the First Heat Exchanger and the evaporator connect successively
It is logical to form the freezing aquaporin.
The evaporator is shell and tube exchanger, and the shell side of the shell and tube exchanger forms the part refrigerant circulation
Channel, tube side form the part freezing aquaporin.
The First Heat Exchanger is plate heat exchanger.
Air-conditioner set provided by the invention can make cooling-water duct and freezing aquaporin by the way that First Heat Exchanger is arranged
Carry out heat exchange so that first order cooling is carried out to chilled water using cooling water, reduces the evaporator end temperature difference, reduces pressure to reach
The purpose of contracting machine acting can carry out second level cooling so that chilled water energy using refrigerant by the way that evaporator is arranged to chilled water
Enough meet the needs of refrigerating capacity, by being cooled down twice to chilled water, can guarantee and be in relatively low negative when unit operation always
Under lotus, life consumption caused by unit running overload is avoided the problem that, improve the economy of complete machine operation.
Description of the drawings
Fig. 1 is air-conditioning unit structure schematic diagram provided by the invention；
In figure：
1, refrigerant circulation channel；2, cooling-water duct；3, aquaporin is freezed；4, First Heat Exchanger；11, compressor；12, cold
Condenser；13, throttling set；14, evaporator；21, cooling well；22, back water well；31, user terminal.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining the present invention, not
For limiting the present invention.
Air-conditioner set as shown in Figure 1, including refrigerant circulation channel 1, cooling-water duct 2, freezing aquaporin 3 and first change
Hot device 4, the cooling-water duct 2 and the freezing aquaporin 3 are connected to the First Heat Exchanger 4, the cooling-water duct 2
Cooling water and the chilled water of the freezing aquaporin 3 heat exchange is carried out in the First Heat Exchanger 4, and pass through described first
The chilled water in the freezing aquaporin 3 after heat exchanger 4 and the cooling-water duct 2 after the First Heat Exchanger 4
Interior cooling water carries out heat exchange with the refrigerant in the refrigerant circulation channel 1 respectively, and cooling water is utilized by First Heat Exchanger 4
To chilled water carry out level-one heat exchange, and make the chilled water after First Heat Exchanger 4 again with the refrigerant in refrigerant circulation channel 1
Secondary heat exchange is carried out, to reach the refrigeration requirement reduced in refrigerant circulation channel 1.
The air-conditioner set includes compressor 11, evaporator 12, throttling set 13 and condenser 14, the compressor 11,
The condenser 14, the throttling set 13 and the evaporator 12 are sequentially communicated to form the refrigerant heat exchanger channels, described cold
But aquaporin 2 and refrigerant heat exchanger channels heat exchange at the condenser 14, the freezing aquaporin 3 are changed with the refrigerant
Passage of heat heat exchange at the evaporator 12 carries out the refrigerant in condenser 14 by the cooling water of First Heat Exchanger 4 cold
But, by the chilled water of First Heat Exchanger 4 to heat dissipation in evaporator 12, ensure that the temperature of the chilled water by evaporator 12 reaches
The temperature of setting.
The air-conditioner set further includes cooling well 21 and back water well 22, the cooling well 21, the First Heat Exchanger
4, the condenser 14 is sequentially connected to form the cooling-water duct 2 with the back water well 22, and cooling-water duct 2 is from cooling well
Cooling water is extracted in 21, and is injected in First Heat Exchanger 4 and carried out heat exchange, the cooling after freezing hydrothermal exchange with chilled water
Water, which enters in condenser 14, to be continued to absorb heat, and is sent by cooling-water duct 2 after heat absorption and is carried out cooling recycling into back water well 22.
Preferably, the cooling well 21 is connected to the back water well 22 under ground portion, ensures the stabilization of cooling water inflow.
The condenser 14 is shell and tube exchanger, and the shell side of the shell and tube exchanger forms the part refrigerant and follows
Ring channel 1, tube side form the part cooling-water duct 2.
The depth bounds of the cooling well 21 and/or the back water well 22 are 5-10m, by underground water hydrological analysis
It was found that underground water temperature would not be influenced at 5~10m of underground by atmospheric temperature substantially, 15~17 DEG C are maintained throughout the year, according to
This point, present design using underground 10m underground water by reasonably design first with plate heat exchanger to freezing intake into
Freezing water inlet is down to 17 DEG C or so by row cooling by 30 DEG C or so, to reduce by the 12 end temperature difference of evaporator, reduces compression to reach
The purpose that machine 11 does work, chilled water enters evaporator 12 after underground water cooling.
Meanwhile because the heat exchange of First Heat Exchanger 4 is plate heat exchanger being underground water and higher temperature using lower temperature
Chilled water cools down, and heat transfer process meets the second law of thermodynamics, this process is in addition to being pumped into plate by underground water and changing without artificial
Acting is i.e. without consuming electric energy, to reach the economy for improving complete machine operation.
The air-conditioner set further includes user terminal 31, the user terminal 31, the First Heat Exchanger 4 and the evaporator 12
It is sequentially communicated to form the freezing aquaporin 3, and chilled water absorbs heat at user terminal 31, is reached for user terminal 31 and is made
Cold purpose.
The evaporator 12 is shell and tube exchanger, and the shell side of the shell and tube exchanger forms the part refrigerant and follows
Ring channel 1, tube side form the part freezing aquaporin 3.
Air-conditioner set provided by the invention can make cooling-water duct and freezing aquaporin by the way that First Heat Exchanger is arranged
Carry out heat exchange so that first order cooling is carried out to chilled water using cooling water, reduces the evaporator end temperature difference, reduces pressure to reach
The purpose of contracting machine acting can carry out second level cooling so that chilled water energy using refrigerant by the way that evaporator is arranged to chilled water
Enough meet the needs of refrigerating capacity, by being cooled down twice to chilled water, can guarantee and be in relatively low negative when unit operation always
Under lotus, life consumption caused by unit running overload is avoided the problem that, improve the economy of complete machine operation.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of air-conditioner set, it is characterised in that：Including refrigerant circulation channel (1), cooling-water duct (2), freezing aquaporin (3)
With First Heat Exchanger (4), the cooling-water duct (2) and the freezing aquaporin (3) connect with the First Heat Exchanger (4)
Logical, the chilled water of the cooling water of the cooling-water duct (2) and the freezing aquaporin (3) is in the First Heat Exchanger (4)
Carry out heat exchange, and chilled water in the freezing aquaporin (3) by the First Heat Exchanger (4) after and process described the
The cooling water in the cooling-water duct (2) after one heat exchanger (4) respectively with the refrigerant in the refrigerant circulation channel (1) into
Row heat exchange.
2. air-conditioner set according to claim 1, it is characterised in that：The air-conditioner set includes compressor (11), evaporation
Device (12), throttling set (13) and condenser (14), the compressor (11), the condenser (14), the throttling set
(13) and the evaporator (12) is sequentially communicated to form the refrigerant heat exchanger channels, the cooling-water duct (2) and the refrigerant
Heat exchanger channels heat exchange at the condenser (14), the freezing aquaporin (3) is with the refrigerant heat exchanger channels in the steaming
Send out heat exchange at device (12).
3. air-conditioner set according to claim 2, it is characterised in that：The air-conditioner set further include cooling well (21) and
Back water well (22), the cooling well (21), the First Heat Exchanger (4), the condenser (14) and the back water well (22)
Sequentially connection forms the cooling-water duct (2).
4. air-conditioner set according to claim 3, it is characterised in that：The condenser (14) is shell and tube exchanger, and
The shell side of the shell and tube exchanger forms the part refrigerant circulation channel (1), and tube side forms the part cooling-water duct
(2)。
5. air-conditioner set according to claim 3, it is characterised in that：The cooling well (21) and/or the back water well
(22) depth bounds are 5-10m.
6. air-conditioner set according to claim 2, it is characterised in that：The air-conditioner set further includes user terminal (31), institute
User terminal (31), the First Heat Exchanger (4) and the evaporator (12) is stated to be sequentially communicated to form the freezing aquaporin (3).
7. air-conditioner set according to claim 6, it is characterised in that：The evaporator (12) is shell and tube exchanger, and
The shell side of the shell and tube exchanger forms the part refrigerant circulation channel (1), and tube side forms the part freezing aquaporin
(3)。
8. air-conditioner set according to claim 1, it is characterised in that：The First Heat Exchanger (4) is plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395829.6A CN108302670A (en) | 2017-12-21 | 2017-12-21 | Air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395829.6A CN108302670A (en) | 2017-12-21 | 2017-12-21 | Air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302670A true CN108302670A (en) | 2018-07-20 |
Family
ID=62870552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711395829.6A Pending CN108302670A (en) | 2017-12-21 | 2017-12-21 | Air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302670A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9800433D0 (en) * | 1997-01-20 | 1998-03-04 | Green Cross Japan Foundation | Freezing and cooling system and heat exchanger device for condensation |
| CN2473500Y (en) * | 2001-03-28 | 2002-01-23 | 王洋 | Air conditioner supply cold by underground well water |
| CN102818326A (en) * | 2012-08-22 | 2012-12-12 | 清华大学 | Large temperature difference air conditioning system for heat extraction of data center and using method thereof |
| CN104566703A (en) * | 2013-10-15 | 2015-04-29 | 高天罡 | Dual-system energy-saving central air-conditioner |
| CN205678804U (en) * | 2016-06-08 | 2016-11-09 | 烟台顿汉布什工业有限公司 | A kind of cooling by wind with natural cooling function and air-conditioner |
-
2017
- 2017-12-21 CN CN201711395829.6A patent/CN108302670A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9800433D0 (en) * | 1997-01-20 | 1998-03-04 | Green Cross Japan Foundation | Freezing and cooling system and heat exchanger device for condensation |
| CN2473500Y (en) * | 2001-03-28 | 2002-01-23 | 王洋 | Air conditioner supply cold by underground well water |
| CN102818326A (en) * | 2012-08-22 | 2012-12-12 | 清华大学 | Large temperature difference air conditioning system for heat extraction of data center and using method thereof |
| CN104566703A (en) * | 2013-10-15 | 2015-04-29 | 高天罡 | Dual-system energy-saving central air-conditioner |
| CN205678804U (en) * | 2016-06-08 | 2016-11-09 | 烟台顿汉布什工业有限公司 | A kind of cooling by wind with natural cooling function and air-conditioner |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180720 |
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| RJ01 | Rejection of invention patent application after publication |