CN105387545A - Double-cold-source fresh air unit achieving heat dissipation by means of fresh air through solution - Google Patents
Double-cold-source fresh air unit achieving heat dissipation by means of fresh air through solution Download PDFInfo
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- CN105387545A CN105387545A CN201510901664.XA CN201510901664A CN105387545A CN 105387545 A CN105387545 A CN 105387545A CN 201510901664 A CN201510901664 A CN 201510901664A CN 105387545 A CN105387545 A CN 105387545A
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- fresh air
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- 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
- 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
- F24F5/0035—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 using evaporation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Other Air-Conditioning Systems (AREA)
Abstract
The invention relates to a double-cold-source fresh air unit achieving heat dissipation by means of fresh air through a solution. The double-cold-source fresh air unit comprises a refrigerating system A and a refrigerating system B. The refrigerating system A comprises a compressor, an expansion valve, a first evaporator, a solution-refrigerant heat exchange plate and a solution heat dissipation unit. The refrigerating system B comprises a second compressor, a second expansion valve, an electric adjustment valve, a second electric adjustment valve, a second evaporator, a first condenser and a second condenser. Fresh air enters the first evaporator in the refrigerating system A to be pre-cooled and pre-dehumidified, the processed fresh air is further cooled and dehumidified through the second evaporator in the refrigerating system B, the low-temperature dry fresh air passes through the first condenser so that the temperature of the fresh air can be increased to an air supply point, and then the fresh air enters a room; the heat dissipation fresh air makes contact with the solution heat dissipation unit firstly, so that condensation heat generated by the refrigerating system A is taken away in a moisture evaporation way; then the heat dissipation fresh air passes through the second condenser, so that residual condensation heat of the refrigerating system B is taken away, and finally the high-temperature humid fresh air is exhausted out of the room.
Description
Technical field
The present invention relates to technical field that the is civilian and aircondition in industrial project, particularly relate to a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution.
Background technology
The two low-temperature receiver Fresh air handling units being applied to field of air conditioning at present are generally divided into following several:
1) utilize external high temperature cold water to carry out precooling, pre-dehumidified to new wind, then utilize external low-temperature cold water to carry out further cool-down dehumidification to new wind;
2) external high temperature cold water is utilized to carry out precooling, pre-dehumidified to new wind, then the low temperature refrigerant utilizing unit to carry refrigeration system carries out further cool-down dehumidification to new wind, then utilizing the partial condensation heat dry fresh air too low to temperature carrying refrigeration system generation to carry out reheating, by radiator coil tube, all the other condensation heat being dissipated utilizing return air.Above two kinds is two kinds of the most frequently used at present two cold source air conditioning groups, have respective pluses and minuses respectively: the first, high temperature cold water relies on the higher high temperature main frame of efficiency to produce, the refrigerant that low temperature dehumidification unit needs relies on low temperature main frame to produce, concentrate the cold efficiency producing refrigerant higher, but its system is comparatively complicated, distributing system is complicated and energy consumption is high; The second, high temperature cold water relies on the higher high temperature main frame of efficiency to produce, the refrigeration system that the refrigerant that low temperature dehumidification unit needs relies on unit to carry is produced, comparatively the first simplifies its system greatly, save a set of distributing system, but carrying refrigeration system utilizes return air to take away condensation heat by radiator coil tube, its efficiency is again not as the cryogenic refrigeration main frame in first set system.
Utilize transpiration-cooled method greatly can improve the efficiency of condenser heat radiation, exist at present utilize transpiration-cooled unit be by Water spray to condenser fin and with the fin heat exchange on condenser, thus reach the object to condenser cooling.But there is an inevitable problem in this mode, be exactly that calcium ions and magnesium ions in water can precipitate to cover on fin and forms dirt, after fouling, the thermal conduction resistance of fin will become large, thus reduces heat exchange efficiency, finally cause condensation temperature to raise, unit efficiency reduces.
The present invention is specially adapted to utilize return air to carry out the application scenario of dispelling the heat.
Summary of the invention
In order to solve the problems of the technologies described above, a kind of two low-temperature receiver Fresh air handling units can stopping evaporative cooling fin scale problems are provided, the invention provides following technical scheme:
The two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution, comprise refrigeration system A and refrigeration system B;
Described refrigeration system A comprises compressor, expansion valve, the first evaporimeter, solution-refrigerant heat exchanger plate, solution heat-sink unit, the first refrigerant circulation line, solution circulation pipeline; Described solution heat-sink unit comprises solution pump, water compensating valve, hot and humid area core body, solution tank; Described first evaporimeter, compressor, solution-refrigerant heat exchanger plate, expansion valve are connected successively by the first refrigerant circulation line; Described solution tank, solution pump, solution-refrigerant heat exchanger plate are connected successively by solution circulation pipeline; Described hot and humid area core body is positioned at solution tank, and described water compensating valve is communicated with solution tank;
Described refrigeration system B contains compressor two, expansion valve two, electric control valve, electric control valve two, second evaporimeter, the first condenser, the second condenser, second refrigerant circulation line, the 3rd refrigerant circulation line; Described second evaporimeter, compressor two, electric control valve, the first condenser, expansion valve two are connected successively by second refrigerant circulation line, and described second evaporimeter, compressor two, electric control valve two, second condenser, expansion valve two are connected successively by the 3rd refrigerant circulation line; Described second refrigerant circulation line, the 3rd refrigerant circulation line pool one article of pipeline before outflow compressor two and after flowing into expansion valve two.
New wind first in refrigeration system A the first evaporimeter carry out precooling pre-dehumidified, pretreated new wind is by the second evaporimeter in refrigeration system B by further cool-down dehumidification, and the new wind of dry low temperature is warming up to air-supply point through the first condenser and sends into indoor; The new wind that dispels the heat first is contacted with solution heat-sink unit and the condensation heat that refrigeration system A produces is taken away by the mode of transpiring moisture, then through the second condenser, remaining for refrigeration system B condensation heat is taken away, and the new wind of final high temperature humidity is excluded outdoor.
Further, in described hot and humid area core body, anticorrosive packing is cellular or other can increase surface area contacted shape.Be conducive to the contact area increasing solution and filler, improve transpiration-cooled efficiency.
Further, described solution heat-sink unit can arrange one group or many groups, and each group is connected in parallel with solution-refrigerant heat exchanger plate respectively, arranges according to the actual requirements, when the condensation heat that the first condenser produces is more, many group solution heat-sink units can be set for improving transpiration-cooled effect.
Further, described first evaporimeter uses high temperature refrigerant as cold-producing medium, and described second evaporimeter uses low temperature refrigerant as cold-producing medium.Because the first evaporimeter mainly plays precooling, pre-dehumidified, therefore high temperature refrigerant can meet user demand; And the second evaporimeter plays the effect to the further cool-down dehumidification of new wind through the first evaporimeter, therefore need to use low temperature refrigerant as cold-producing medium.
Further, described first evaporimeter and the refrigerant in the second evaporimeter can be identical or different temperatures.
Further, described second condenser can arrange one or more groups, and each group is connected in parallel, arranges according to the actual requirements, when the second evaporimeter produces a large amount of condensation heat, can arrange many groups the second condenser, be conducive to improving cooling effect.
Further, second condenser is replaced with solution heat-sink unit two and solution-refrigerant heat exchanger plate two, the syndeton of the syndeton of described solution heat-sink unit two, solution-refrigerant heat exchanger plate two and the second evaporimeter and solution heat-sink unit, solution-refrigerant heat exchanger plate, the first evaporimeter is identical, because solution heat-sink unit also can play the cooling effect of condenser, therefore can replace.
Further, described solution is inorganic salt solution, because inorganic salt solution has larger viscosity compared with glassware for drinking water, namely utilize salting liquid that solution can be made fully to be attached to the surface of filler, thus make air have sufficient time and contact area and solution to carry out caloic exchange, inorganic salt solution avoids compared with water and utilizes water directly to evaporate the scale problems brought because ion has similar compatibility effect, therefore utilize inorganic salt solution as medium comparatively aqueous water stopped scale problems completely.
Two low-temperature receiver Fresh air handling units that the present invention utilizes solution to dispel the heat are integrated with the advantage of current existing pair of low-temperature receiver unit and have stopped evaporative cooling fin scale problems, have the features such as efficiency is high, system simple, maintenance is few.Meanwhile, because solution to be attached on filler directly to carry out caloic exchange with air, so utilize solution as medium, also can not affect the caloic exchange of water and air on filler even if there is dirt to be attached to, can not heat exchange efficiency be affected.The present invention adopts solution as medium, and utilize the mode of directly evaporation to dissipate condensation heat, its efficiency is far above the mode by heat exchange coil heat convection.
Accompanying drawing explanation
Fig. 1, primary structure schematic diagram of the present invention;
The structural representation of Fig. 2, a kind of embodiment of the present invention;
In figure: 1, compressor, 2, expansion valve, 3, solution-refrigerant heat exchanger plate, 4, solution heat-sink unit, 5, solution pump, 6, water compensating valve, 7, hot and humid area core body, 8, compressor two, 9, expansion valve two, 11, solution tank, 21, first refrigerant circulation line, 22, second refrigerant circulation line, 23, 3rd refrigerant circulation line, 31, solution circulation pipeline, 41, solution heat-sink unit two, 42, solution-refrigerant heat exchanger plate two, 101, first evaporimeter, 102, second evaporimeter, 110, electric control valve, 111, electric control valve two, 201, first condenser, 202, second condenser.
Detailed description of the invention
Embodiment 1,
As shown in Figure 1, a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution, comprise refrigeration system A and refrigeration system B;
Described refrigeration system A comprises compressor 1, expansion valve 2, first evaporimeter 101, solution-refrigerant heat exchanger plate 3, solution heat-sink unit 4, first refrigerant circulation line 21, solution circulation pipeline 31; Described solution heat-sink unit 4 comprises solution pump 5, water compensating valve 6, hot and humid area core body 7, solution tank 11; Described first evaporimeter 101, compressor 1, solution-refrigerant heat exchanger plate 3, expansion valve 2 are connected successively by the first refrigerant circulation line 21; Described solution tank 11, solution pump 5, solution-refrigerant heat exchanger plate 3 is connected successively by solution circulation pipeline 31; Described hot and humid area core body 7 is positioned at solution tank 11, and described water compensating valve 6 is communicated with solution tank 11;
Described refrigeration system B contains compressor 28, expansion valve 29, electric control valve 110, electric control valve 2 111, second evaporimeter 102, first condenser 201, second condenser 202, second refrigerant circulation line 22, the 3rd refrigerant circulation line 23; Described second evaporimeter 102, compressor 28, electric control valve 110, first condenser 201, expansion valve 29 are connected successively by second refrigerant circulation line 22, and described second evaporimeter 102, compressor 28, electric control valve 2 111, second condenser 202, expansion valve 29 are connected successively by the 3rd refrigerant circulation line 23; Described second refrigerant circulation line 22, the 3rd refrigerant circulation line 23 pool one article of pipeline before outflow compressor 28 and after flowing into expansion valve 29.
In described hot and humid area core body 7, anticorrosive packing is cellular.Described solution heat-sink unit 4 arranges one group.Described first evaporimeter 21 uses high temperature refrigerant as cold-producing medium, and described second evaporimeter 22 uses low temperature refrigerant as cold-producing medium.Refrigerant temperature in described first evaporimeter 101 and the second evaporimeter 102 is identical or different.Described solution is inorganic salt solution.
Embodiment 2,
As shown in Figure 2, a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution, comprise refrigeration system A and refrigeration system B;
Described refrigeration system A comprises compressor 1, expansion valve 2, first evaporimeter 101, solution-refrigerant heat exchanger plate 3, solution heat-sink unit 4, first refrigerant circulation line 21, solution circulation pipeline 31; Described solution heat-sink unit 4 comprises solution pump 5, water compensating valve 6, hot and humid area core body 7, solution tank 11; Described first evaporimeter 101, compressor 1, solution-refrigerant heat exchanger plate 3, expansion valve 2 are connected successively by the first refrigerant circulation line 21; Described solution tank 11, solution pump 5, solution-refrigerant heat exchanger plate 3 is connected successively by solution circulation pipeline 31; Described hot and humid area core body 7 is positioned at solution tank 11, and described water compensating valve 6 is communicated with solution tank 11;
Described refrigeration system B contains compressor 28, expansion valve 29, electric control valve 110, electric control valve 2 111, second evaporimeter 102, first condenser 201, solution heat-sink unit 2 41, mixture refrigerant heat exchanger plates 2 42, second refrigerant circulation line 22, the 3rd refrigerant circulation line 23; Described second evaporimeter 102, compressor 28, electric control valve 110, first condenser 201, expansion valve 29 are connected successively by second refrigerant circulation line 22, the syndeton of the syndeton of described solution heat-sink unit 2 41, solution-refrigerant heat exchanger plate 2 42 and the second evaporimeter 102 and solution heat-sink unit 4, solution-refrigerant heat exchanger plate 3, first evaporimeter 101 is identical, and the 3rd refrigerant circulation line 23 flowed out at compressor 28 is provided with electric control valve 111; Described second refrigerant circulation line 22, the 3rd refrigerant circulation line 23 pool one article of pipeline before outflow compressor 28 and after flowing into expansion valve 29.
In described hot and humid area core body 7, anticorrosive packing is cellular.Described first evaporimeter 21 uses high temperature refrigerant as cold-producing medium, and described second evaporimeter 22 uses low temperature refrigerant as cold-producing medium.Refrigerant in described first evaporimeter 101 and the second evaporimeter 102 is identical or different temperature.Described solution is inorganic salt solution.
Claims (8)
1. the two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution, be is characterized in that: comprise refrigeration system A and refrigeration system B;
Described refrigeration system A comprises compressor (1), expansion valve (2), the first evaporimeter (101), solution-refrigerant heat exchanger plate (3), solution heat-sink unit (4), the first refrigerant circulation line (21), solution circulation pipeline (31); Described solution heat-sink unit (4) comprises solution pump (5), water compensating valve (6), hot and humid area core body (7), solution tank (11); Described first evaporimeter (101), compressor (1), solution-refrigerant heat exchanger plate (3), expansion valve (2) are connected successively by the first refrigerant circulation line; Described solution tank (11), solution pump (5), solution-refrigerant heat exchanger plate (3) is connected successively by solution circulation pipeline (31); Described hot and humid area core body (7) is positioned at solution tank (11), and described water compensating valve (6) is communicated with solution tank (11);
Described refrigeration system B contains compressor two (8), expansion valve two (9), electric control valve (110), electric control valve two (111), the second evaporimeter (102), the first condenser (201), the second condenser (202), second refrigerant circulation line (22), the 3rd refrigerant circulation line (23); Described second evaporimeter (102), compressor two (8), electric control valve (110), the first condenser (201), expansion valve two (9) are connected successively by second refrigerant circulation line (22), and described second evaporimeter (102), compressor two (8), electric control valve two (111), the second condenser (202), expansion valve two (9) are connected successively by the 3rd refrigerant circulation line (23); Described second refrigerant circulation line (22), the 3rd refrigerant circulation line (23) are front and flow into after expansion valve two (9) and pool one article of pipeline at outflow compressor two (8).
2. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, be is characterized in that: the middle anticorrosive packing of described hot and humid area core body (7) is cellular or other can increase surface area contacted shape.
3. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, it is characterized in that: described solution heat-sink unit (4) arranges one group or many groups, each group is connected in parallel with solution-refrigerant heat exchanger plate (3) respectively.
4. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, it is characterized in that: described first evaporimeter (101) uses high temperature refrigerant as cold-producing medium, described second evaporimeter (102) uses low temperature refrigerant as cold-producing medium.
5. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 4, be is characterized in that: the refrigerant in described first evaporimeter (101) and the second evaporimeter (102) is identical or different temperatures.
6. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, be is characterized in that: described second condenser (202) arranges one or more groups, and each group is connected in parallel.
7. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, it is characterized in that: the second condenser (202) is replaced with solution heat-sink unit two (41) and solution-refrigerant heat exchanger plate two (42), the syndeton of the syndeton of described solution heat-sink unit two (41), solution-refrigerant heat exchanger plate two (42) and the second evaporimeter (102) and solution heat-sink unit (4), solution-refrigerant heat exchanger plate (3), the first evaporimeter (101) is identical.
8. a kind of two low-temperature receiver Fresh air handling units utilizing new wind to be dispelled the heat by solution as claimed in claim 1, be is characterized in that: described solution is inorganic salt solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901664.XA CN105387545A (en) | 2015-12-09 | 2015-12-09 | Double-cold-source fresh air unit achieving heat dissipation by means of fresh air through solution |
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| CN201510901664.XA CN105387545A (en) | 2015-12-09 | 2015-12-09 | Double-cold-source fresh air unit achieving heat dissipation by means of fresh air through solution |
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Application publication date: 20160309 |