CN106152324A - The big temperature difference and part auxiliary air independent humidity control air conditioning system - Google Patents
The big temperature difference and part auxiliary air independent humidity control air conditioning system Download PDFInfo
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- CN106152324A CN106152324A CN201510172082.2A CN201510172082A CN106152324A CN 106152324 A CN106152324 A CN 106152324A CN 201510172082 A CN201510172082 A CN 201510172082A CN 106152324 A CN106152324 A CN 106152324A
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Abstract
The present invention relates to a kind of big temperature difference and part auxiliary air independent humidity control air conditioning system, separately process air heat is wet, air (1) is introduced into sensible heat exchanger (2) and lowers the temperature, then it is divided into two parts (3) and (6), partial air (3) enters latent heat exchanger (4) and carries out dehumidifying and cooling, become low temperature saturated air (7), mix with another part air (6) again, become air (8), be then fed into air-conditioned room.Air and chilled water are countercurrent flow.Its Cooling and Heat Source unit includes at least two compressor refrigeration systems, at least two vaporizer, for vaporizer (11) and vaporizer (12), the evaporating temperature of multiple vaporizers is the most different, processing backwater successively cooling, the chilled water temperature difference before and after process is about 10 DEG C.The air conditioning system refrigerating medium of the present invention uses big temperature difference, low flow mode of movement, effectively reduces the conveying energy consumption of refrigerating medium, improves the Energy Efficiency Ratio of Cooling and Heat Source unit.
Description
Technical field
The invention belongs to field of Refrigeration and Air-conditioning, be related specifically to a kind of energy-saving air conditioning system.
Background technology
By statistical analysis, the 15 ~ 30% of normal domestic air conditioning system refrigerating capacity are latent heat, and remaining is sensible heat.In order to eliminate latent heat, it is necessary to return air is processed below dew point, steam could be removed.Owing to dehumidifying dew point temperature is relatively low, it is therefore desirable to relatively low sink temperature, causing the air blow and return temperature difference relatively big, irreversible loss strengthens.Further, since need relatively low sink temperature, cause handpiece Water Chilling Units evaporating temperature relatively low, reduce the efficiency of unit.
Current domestic sector application most or latent heat remove together with sensible heat, it is therefore desirable to relatively low sink temperature, supply and return water temperature is 7-12 DEG C, and the evaporating temperature of low-temperature receiver Crew Cooling System is 2-5 DEG C, and low-temperature receiver unit efficiency is relatively low, consumes energy higher.It addition, cold water supply backwater temperature difference only has 5 DEG C, the cold water flow of conveying is relatively big, and the power consumption of cold water induction system is bigger.Therefore it is badly in need of a kind of efficient energy-conserving product of research and development, reduces the energy consumption of air conditioning system.
In recent years, study more be hot hygroscopic water from solution independent humidity control system.Operation principle is to utilize some to have strong hygroscopic solution (such as lithium chloride solution), solution absorbs the water vapour in air at low temperatures, being then delivered to outdoor, at high temperature release water vapour, whole process is exactly that solution is constantly carrying out moisture absorption and regeneration cycle.The latent heat load that solution dehumidification burden air is, and sensible heat load is carried out cooling process by low-temperature receiver unit, the sink temperature of sensible heat load is higher, is conducive to improving the efficiency of low-temperature receiver unit.
Hot hygroscopic water from solution independent humidity control air conditioning system, at present mostly apply at full heat recovery fresh air unit, and source pump is used in combination, utilize the heat of the condenser of source pump that solution is regenerated, solution is cooled down by the cold utilizing vaporizer, recovers solution wettability power.Unit can fully reclaim the cold and hot amount that air draft produces, and the efficiency of whole system is higher, reaches about 6.
Although solution dehumidification system efficiency is higher, but there is also some following shortcomings: because solution independent humidity control system is different from traditional air conditioning system, need special installation and debugging technology, existing industry practitioner to grasp completely.It addition, solution independent humidity control system is generally used to process new wind, and for scattered return air process unsuitable for, application surface is less.Furthermore, the hygroscopic solution that system uses has the strongest corrosivity, user and designer and does not quite trusts it.To sum up reason, hot hygroscopic water from solution independent humidity control air conditioning system commercially promotion effect be not very well, in engineering, application is seldom.
Air-conditioning processing system of the present invention can save the energy of 30% than traditional air conditioning system, and it is convenient to have installation and debugging, replaces existing fan coil cooling unit convenient, these be all hot hygroscopic water from the advantage that do not possesses of solution independent humidity control air conditioning system.
Summary of the invention
The present invention provides one separately can process air heat is wet, and air conditioning water uses the conveying of big temperature difference low discharge, and Cooling and Heat Source unit mean evaporating temperatures is higher, the efficient energy-saving air conditioning system consuming energy relatively low.
Air-conditioning end of the present invention the technical scheme is that hot wet independent process technology, and air single treatment is that sensible heat cooling processes, and after-treatment is dehumidification treatments, and cold water cold is carried out cascade utilization.Surface cooler use plural serial stage mode, it is desirable to for cold water temperature from 7-10 DEG C, return water temperature is 17-20 DEG C, and low-temperature cold water initially enters latent heat exchanger (4), then enters sensible heat exchanger (2), according to the height cascade utilization cold water cold of cold water temperature.
Air single treatment of the present invention is that sensible heat cooling processes, and secondary is dehumidification treatments.All return air (1) are lowered the temperature through sensible heat exchanger (2), and then portion of air (3) enters latent heat exchanger (4) and dehumidifies, and after dehumidifying, air (7) mix with the air (6) not dehumidified and becomes air (8), feeding room.
Air conditioner system air blast temperature of the present invention is higher than dew point temperature, and air outlet is difficult to condensation, and supply air temperature difference is less, and sanitary condition is more preferable, and comfortableness is higher.
Air quantity is adjusted by air-conditioning end (9) of the present invention also by air-valve (5), it is possible to according to room humidity regulation dehumidifying air quantity, meet comfortableness requirement.
Air Conditioning System unit (10) of the present invention comprises multiple refrigeration system, there are multiple refrigerating evaporator (11) and vaporizer (12), the evaporating temperature of multiple vaporizers is the most different, processes backwater successively cooling, and the chilled water temperature difference before and after process is about 10 DEG C.
The mean evaporating temperatures of the Cooling and Heat Source unit (10) of the present invention is higher, and Energy Efficiency Ratio is higher.The present invention uses refrigerating (hot) agent of the big temperature difference of low discharge, the less energy intensive of induction system.
When air-conditioning end (9) of the present invention heats in the winter time, being controlled by air-valve (5), whole air intakes (1), through two heat exchangers (sensible heat exchanger (2) and latent heat exchanger (4)), are blown after heating, are met winter heating's requirement.
The present invention is applied to all-fresh air and processes, and requires that even all new wind is by dehumidification heat exchange (4), to meet dehumidification requirements can to make major part by air-valve (5) regulation dehumidifying air quantity according to processing.
Beneficial effect:
The present invention provides the air conditioning system of the wet separating treatment of a kind of heat, can meet the most roomed comfortableness requirement, and energy can fully carry out again cascade utilization, reduces conveying energy consumption, improves the Energy Efficiency Ratio of Cooling and Heat Source unit.Specific as follows:
1, use advanced part auxiliary air independent humidity control processing mode, energy is carried out cascade utilization, than existing air conditioner system energy saving more than 30%.
2, improve the mean evaporating temperatures of Cooling and Heat Source unit, improve 20% than existing handpiece Water Chilling Units efficiency.
3, the cold water induction system of big temperature difference, low flow, conveying cost is greatly lowered than existing cold water induction system.
4, existing air-conditioning installation personnel installation and debugging are facilitated.Original solution independent humidity control system, because of system complex, and relates to relevant knowledge and the peculiar mounting technique such as moisture absorption and regeneration of solution, and installation and debugging personnel are difficult to grasp.
5, it is easy to replace existing fan coil cooling unit.Solution independent humidity control unit applies in general to all-fresh air centralized processing system, and processes cumbersome for scattered return air, and native system both adapts to concentrate fresh air treatment system, can be suitable for again scattered air return system, and cost of investment is relatively low.
6, sensible heat part low-temperature receiver can also use natural cooling source, it is possible to significantly reduces energy consumption and the expense of artificial cold source.
Accompanying drawing illustrates:
Fig. 1, air handling process figure
Fig. 2, air conditioning system figure
Detailed description of the invention:
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention rather than limit the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
Embodiment 1
As shown in Figure 2: air-conditioning end (9) is respectively arranged sensible heat exchanger (2) and latent heat exchanger (4), air conditioning water first passes through latent heat exchanger (4), then through sensible heat exchanger (2).
Such as Fig. 1, shown in Fig. 2: air sensible processes technique: return air (1) state point is N point, after sensible heat exchanger (2) is lowered the temperature, becoming Cryogenic air (3) and (6), state is S point, and sensible heat part is disposed.
Air dewetting technique: part Cryogenic air (3) enters latent heat exchanger (4), and air here carries out dehumidifying and cooling, becomes apparatus dew point air (7), and state is L point.Then air (7) and air (6) mixing, arrive air (8), and state point is C point, is re-fed into room.
As shown in Figure 2: Cooling and Heat Source unit (10) includes two refrigeration systems, two vaporizers, respectively vaporizer (11) and vaporizer (12) are arranged.
Chilled water processes technique except temperature: Cooling and Heat Source unit return water temperature is typically at 17 DEG C, and chilled water first passes through vaporizer (12), then through vaporizer (11), temperature is dropped to 7 DEG C, and the evaporating temperature of 2 vaporizers respectively may be about 4 DEG C and 9 DEG C.
Claims (10)
1. a part auxiliary air independent humidity control processes formula energy saving air conditioning system, separately process air heat is wet, air (1) is introduced into sensible heat exchanger (2) and lowers the temperature, then it is divided into two parts (3) and (6), air (3) enters latent heat exchanger (4) and carries out dehumidifying and cooling, becomes low temperature saturated air (7), then mixes with another part air (6), become air (8), be then fed into air-conditioned room.
The most according to claim 1, part auxiliary air independent humidity control processes formula energy saving air conditioning system, its air-conditioning end (9) is characterised by: air-conditioning end heat exchanger at least includes the heat exchanger of two kinds of functions, air intlet end is sensible heat exchanger (2), air is carried out cooling process, the port of export is latent heat exchanger (4), and air is carried out dehumidifying and cooling process.
The most according to claim 1, part auxiliary air independent humidity control processes formula energy saving air conditioning system, air and chilled water use countercurrent flow, chilled water first flows into latent heat exchanger (2), after flow through sensible heat exchanger (4), air conditioning water uses the conveying of big temperature difference low discharge.
4. according to claim 1,2, auxiliary air independent humidity control described in 3 processes formula energy saving air conditioning system, its Cooling and Heat Source unit (10) is characterised by: including at least two compressor refrigeration systems, there are two refrigerating evaporators (11) and (12), the evaporating temperature of multiple vaporizers is the most different, processes backwater successively cooling, and the chilled water temperature difference before and after process is about 10 DEG C.
5. according to claim 1, described in 2, latent heat exchanger (4) also has a bypass air-valve (5), can regulate the size of bypass air quantity.
6. according to claim 1, described in 2, sensible heat exchanger (2) and latent heat exchanger (4) can be made up of multiple heat exchangers, and the heat converter structure of two kinds of functions can be split type, it is possible to combining, form a whole heat exchanger.
The most multiple compressor refrigeration system Cooling and Heat Source units, can be multiple split type unitary system cooling system Cooling and Heat Source units, it is possible to for monoblock type multiple refrigeration system Cooling and Heat Source unit.
8. according to claim 1,2, air conditioning system described in 3, when heating in the winter time, the air quantity of air-conditioning end (9) is controlled by air-valve (5), all air intake (1) is through two heat exchangers (sensible heat exchanger (2) and latent heat exchanger (4)), blows, meet winter heating's requirement after heating.
9. according to claim 1, air conditioning system described in 2,3, it is applied to all-fresh air and processes, require that even all new wind is by dehumidification heat exchange (4), to meet dehumidification requirements can to make major part by air-valve (5) regulation dehumidifying air quantity according to processing.
10. according to claim 1,2, air conditioning system described in 3,4,6, air conditioning unit can be direct-expansion type unit and without refrigerating mediums such as chilled waters, unit includes at least two refrigeration systems, and one is sensible heat processing system, and one is latent heat processing system, the cold-producing medium of latent heat processing system is directly entered sensible heat exchanger and is evaporated, and the cold-producing medium of latent heat processing system is directly entered latent heat exchanger and is evaporated.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109556306A (en) * | 2018-11-14 | 2019-04-02 | 南京汽车集团有限公司 | The automobile-used circulating refrigerant control device of Refrigerated Transport and control method |
CN110715817A (en) * | 2019-11-13 | 2020-01-21 | 苏州英维克温控技术有限公司 | Air handling unit and enthalpy difference laboratory |
CN113803799A (en) * | 2021-10-14 | 2021-12-17 | 珠海格力电器股份有限公司 | Combined terminal device, air conditioning unit and dehumidification compensation adjustment method |
WO2024178905A1 (en) * | 2023-03-02 | 2024-09-06 | 深圳市英维克科技股份有限公司 | Cooling unit, operation method, computer-readable storage medium, and apparatus |
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JP2006308246A (en) * | 2005-04-28 | 2006-11-09 | Mitsubishi Electric Corp | Air conditioner |
CN101344291A (en) * | 2008-08-19 | 2009-01-14 | 华南理工大学 | A high-efficiency energy-saving air-conditioning system for district cooling and its implementation method |
CN101440983A (en) * | 2008-12-30 | 2009-05-27 | 哈尔滨工业大学 | Air processing unit based on energy step utilization |
CN102418966A (en) * | 2011-12-19 | 2012-04-18 | 东南大学 | Air treatment device and air treatment method |
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2015
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006308246A (en) * | 2005-04-28 | 2006-11-09 | Mitsubishi Electric Corp | Air conditioner |
CN101344291A (en) * | 2008-08-19 | 2009-01-14 | 华南理工大学 | A high-efficiency energy-saving air-conditioning system for district cooling and its implementation method |
CN101440983A (en) * | 2008-12-30 | 2009-05-27 | 哈尔滨工业大学 | Air processing unit based on energy step utilization |
CN102418966A (en) * | 2011-12-19 | 2012-04-18 | 东南大学 | Air treatment device and air treatment method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109556306A (en) * | 2018-11-14 | 2019-04-02 | 南京汽车集团有限公司 | The automobile-used circulating refrigerant control device of Refrigerated Transport and control method |
CN109556306B (en) * | 2018-11-14 | 2021-03-30 | 南京汽车集团有限公司 | Circulating refrigerant control device and method for refrigerated transport vehicle |
CN110715817A (en) * | 2019-11-13 | 2020-01-21 | 苏州英维克温控技术有限公司 | Air handling unit and enthalpy difference laboratory |
CN113803799A (en) * | 2021-10-14 | 2021-12-17 | 珠海格力电器股份有限公司 | Combined terminal device, air conditioning unit and dehumidification compensation adjustment method |
WO2024178905A1 (en) * | 2023-03-02 | 2024-09-06 | 深圳市英维克科技股份有限公司 | Cooling unit, operation method, computer-readable storage medium, and apparatus |
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Application publication date: 20161123 |