CN205119299U - Central air conditioning system - Google Patents

Central air conditioning system Download PDF

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Publication number
CN205119299U
CN205119299U CN201520911855.XU CN201520911855U CN205119299U CN 205119299 U CN205119299 U CN 205119299U CN 201520911855 U CN201520911855 U CN 201520911855U CN 205119299 U CN205119299 U CN 205119299U
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China
Prior art keywords
air
treatment unit
communicated
fresh
cooling water
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Expired - Fee Related
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CN201520911855.XU
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Chinese (zh)
Inventor
朱宇亮
李国栋
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Shjy Architectural Design Co Ltd
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Shjy Architectural Design Co Ltd
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Priority to CN201520911855.XU priority Critical patent/CN205119299U/en
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Abstract

The utility model provides a central air conditioning system, including a fresh air unit and a cooling water system, the fresh air unit sets gradually auxiliary cooling dehydrating unit and evaporimeter according to gas flow direction, auxiliary cooling dehydrating unit with a cooling water system connects. The utility model provides a central air conditioning system establishes independent evaporimeter through adding at the fresh air unit for the new trend can reach lower temperature and humidity, on the basis of guaranteeing the humidity control precision, by a wide margin reduction the energy consumption, be fit for being applied to that this kind of scattered humidity in the clean operation portion is stable, the place of new trend gauge height.

Description

A kind of central air conditioner system
Technical field
The utility model belongs to air-conditioning technical field, relates to a kind of central air conditioner system.
Background technology
The central air conditioner system of traditional design all adopts the design of primary-air recirculating system and secondary return air system.Primary-air recirculating system is that central air-conditioning occurs being the earliest, substantially the most also most typical air-conditioning system, main design idea be indoor return air and new wind only at heat and wet treatment equipment forward slip value once, through surface cooler cooling wet down after mixing, then send into air-conditioned room after heating.As shown in Figure 1-2, Fresh air handling units by new wind outdoor state point W along the equal relative humidity line process of apparatus dew point to air condition point K, new wind point K and indoor return air point N is mixed into state point C through air-treatment unit, and then through surface cooler for fan coil cooling, air is processed to apparatus dew point L point from C point, again through heating devices heat process to ventilation state point O, then through discharge pipe send into air-conditioned room.The advantage of this system can regulate temperature and humidity index preferably, but due to the existence of heater, its energy resource consumption greatly, not energy-conservation.
Secondary return air system except indoor return air and new wind heat and wet treatment equipment forward slip value once except, mist is after surface cooler cooling wet down, also can mix once with indoor return air, during second time mixing, indoor return air instead of the heating of primary-air recirculating system, improves wind pushing temperature again.As shown in Figure 3-4, Fresh air handling units by new wind outdoor state point W along the equal relative humidity line process of apparatus dew point to air condition point K, new wind point K and indoor return air point N is mixed into state point C through air-treatment unit, through surface cooler for fan coil cooling, air is processed to apparatus dew point L point from C point again, and then through mixing post processing to ventilation state point O with a certain amount of secondary return air (state point N), then send into air-conditioned room through discharge pipe.The advantage of this system has abandoned the heater of primary-air recirculating system, and energy consumption reduces greatly, can effective economize energy, but this system is when practical operation, and the control and regulation of secondary return air system are difficult to realize, and often not easily regulate humidity index.
Utility model content
The purpose of this utility model is to provide a kind of central air conditioner system, cannot accomplish humidity regulation and energy-conservation problem to solve central air conditioner system of the prior art simultaneously.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is as follows:
The utility model provides a kind of central air conditioner system, comprise Fresh air handling units and the first cooling water system, described Fresh air handling units sets gradually supplement heat rejecter dehydrating unit and evaporimeter according to gas flow direction, and described supplement heat rejecter dehydrating unit is connected with described first cooling water system.
Further, described central air conditioner system also comprises pipe-line system and air-treatment unit, described pipe-line system comprises fresh wind tube, backwind tube and mixing duct, be communicated with described fresh wind tube one end according to the air outlet of Fresh air handling units described in gas flow direction, the described fresh wind tube other end is communicated with described mixing duct one end, described backwind tube is communicated with described mixing duct one end, and the described mixing duct other end is communicated with described air-treatment unit.
Further, described central air conditioner system also comprises the second cooling water system, and described air-treatment unit comprises radiator cooler, and described radiator cooler is connected with described second cooling water system.
Further, described air-treatment unit also comprises blower fan, and described air-treatment unit sets gradually described blower fan and described radiator cooler according to gas flow direction.
Further, described pipe-line system also comprises discharge pipe, and be communicated with described discharge pipe one end according to the air outlet of air-treatment unit described in gas flow direction, the described discharge pipe other end is connected with air-conditioned room.
Further, described backwind tube is communicated with the return air inlet of air-conditioned room.
Preferably, described radiator cooler is surface cooler.
Compared with prior art, advantage of the present utility model is:
The central air conditioner system that the utility model provides, by adding independently evaporimeter at Fresh air handling units, make the temperature and humidity that novel wind energy enough reaches lower, on the basis ensureing humidity regulation precision, significantly reduce energy consumption, be applicable to being applied to this loose moisture stable of clean operation department, place that resh air requirement is high.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of primary-air recirculating system in prior art;
Fig. 2 is the work psychrometric chart of primary-air recirculating system in prior art;
Fig. 3 is the schematic diagram of secondary return air system in prior art;
Fig. 4 is the work psychrometric chart of secondary return air system in prior art;
Fig. 5 is the schematic diagram of a kind of central air conditioner system that the utility model embodiment provides;
Fig. 6 is the work psychrometric chart of a kind of central air conditioner system that the utility model embodiment provides.
Wherein, 1-Fresh air handling units; 2-first cooling water system; 3-pipe-line system; 4-air-treatment unit; 5-second cooling water system; 6-air-conditioned room; 11-supplement heat rejecter dehydrating unit; 12-evaporimeter; 31-fresh wind tube; 32-backwind tube; 33-mixing duct; 34-discharge pipe; 41-radiator cooler; 42-blower fan.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, a kind of central air conditioner system that the utility model proposes is described in further detail.According to the following describes and claims, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.
As seen in figs. 5-6, it is a kind of central air conditioner system that the utility model provides, comprise Fresh air handling units 1 and the first cooling water system 2, described Fresh air handling units 1 sets gradually supplement heat rejecter dehydrating unit 11 and evaporimeter 12 according to gas flow direction, and described supplement heat rejecter dehydrating unit 11 is connected with described first cooling water system 2.Supplement heat rejecter dehydrating unit 11 and the first cooling water system 2 one work and realize the cooling and dehumidifying of new wind, evaporimeter 12 dehumidifies to the new wind after cooling and dehumidifying further, by the process of Fresh air handling units, just by new wind, state point W is along the equal relative humidity line process of apparatus dew point to the state point K lower than indoor water capacity outdoor, and the air of this part " drying " also will bear indoor humidity load.
Further, described central air conditioner system also comprises pipe-line system 3 and air-treatment unit 4, described pipe-line system comprises fresh wind tube 31, backwind tube 32 and mixing duct 33, be communicated with described fresh wind tube 31 one end according to the air outlet of Fresh air handling units described in gas flow direction, described fresh wind tube 31 other end is communicated with described mixing duct 33 one end, described backwind tube 32 is communicated with described mixing duct 33 one end, and described mixing duct 33 other end is communicated with described air-treatment unit 4.Realize mixing of new wind and return air, new wind point K and indoor return air N is mixed into state point C through air-treatment unit.
Further, described central air conditioner system also comprises the second cooling water system 5, and described air-treatment unit 4 comprises radiator cooler 41, and described radiator cooler 41 is connected with described second cooling water system 5.Mist is cooled by radiator cooler 41 and described second cooling water system 5 in air-treatment unit 4 again, through again cooling by air from C point along etc. wet line process to ventilation state point O.
Further, described air-treatment unit 4 also comprises blower fan 42, and described air-treatment unit 4 sets gradually described blower fan 42 and described radiator cooler 41 according to gas flow direction.
Further, described pipe-line system 3 also comprises discharge pipe 34, and be communicated with described discharge pipe 34 one end according to the air outlet of air-treatment unit 4 described in gas flow direction, described discharge pipe 34 other end is connected with air-conditioned room 6.The gas reaching ventilation state point O is sent into air-conditioned room.
Further, described backwind tube 32 is communicated with the return air inlet of air-conditioned room 6.
Further, described radiator cooler 41 is surface cooler.
The Fresh air handling units of the present embodiment is by adding independently evaporimeter, make the temperature and humidity that novel wind energy enough reaches lower, its operation principle is: outdoor air is carried out cooling and dehumidifying by supplement heat rejecter dehydrating unit and cooling water system by Fresh air handling units on the one hand, on the other hand by the setting of evaporimeter, the humidity of new wind is made to compare the new wind of primary-air recirculating system and secondary return air system lower, like this, by the process of Fresh air handling units just by new wind outdoor state point W along the equal relative humidity line process of apparatus dew point to the state point K lower than indoor water capacity, the air of this part " drying " also will bear indoor humidity load, then new wind point K and indoor return air N is mixed into state point C through air-treatment unit, through cool again by air from C point along etc. wet line process to ventilation state point O, then send in air-conditioned room through discharge pipe.
Energy consumption testing:
Air-conditioned room using I of District of Shanghai hospital grade of operating room (inner region) as test, the area of operating room is 50m 2, floor height 3m.The design parameter of Summer Indoor air-conditioning is: dry-bulb temperature 24 DEG C, relative humidity 50%.
The hot humidity load of operating room is as shown in table 1:
The hot humidity load of table 1 operating room
The central air conditioner system adopting primary-air recirculating system, secondary return air system and the utility model embodiment 1 to provide respectively is tested, and the energy consumption obtained the results are shown in Table shown in 2:
Table 2 energy consumption result summary sheet
As can be seen from Table 2, the energy consumption of primary-air recirculating system is the highest, and the energy consumption of secondary return air system is minimum, the observable index secondary return air system of the central air conditioner system that the utility model embodiment 1 provides slightly high.
But then, from humidity regulation, the humidity regulation difficulty of secondary return air system is maximum, often can not reach the humidity of predetermined set.Therefore, the central air conditioner system that the utility model provides is compared primary-air recirculating system and is greatly reduced in energy consumption, only than secondary return air system can be slightly high, but be obviously better than secondary return air system in humidity regulation.
The central air conditioner system that the utility model provides, by adding independently evaporimeter at Fresh air handling units, make the temperature and humidity that novel wind energy enough reaches lower, on the basis ensureing humidity regulation precision, significantly reduce energy consumption, be applicable to being applied to this loose moisture stable of clean operation department, place that resh air requirement is high.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.

Claims (7)

1. a central air conditioner system, comprise Fresh air handling units and the first cooling water system, it is characterized in that, described Fresh air handling units sets gradually supplement heat rejecter dehydrating unit and evaporimeter according to gas flow direction, and described supplement heat rejecter dehydrating unit is connected with described first cooling water system.
2. central air conditioner system according to claim 1, it is characterized in that, also comprise pipe-line system and air-treatment unit, described pipe-line system comprises fresh wind tube, backwind tube and mixing duct, be communicated with described fresh wind tube one end according to the air outlet of Fresh air handling units described in gas flow direction, the described fresh wind tube other end is communicated with described mixing duct one end, and described backwind tube is communicated with described mixing duct one end, and the described mixing duct other end is communicated with described air-treatment unit.
3. central air conditioner system according to claim 2, is characterized in that, also comprises the second cooling water system, and described air-treatment unit comprises radiator cooler, and described radiator cooler is connected with described second cooling water system.
4. central air conditioner system according to claim 3, is characterized in that, described air-treatment unit also comprises blower fan, and described air-treatment unit sets gradually described blower fan and described radiator cooler according to gas flow direction.
5. central air conditioner system according to claim 2, it is characterized in that, described pipe-line system also comprises discharge pipe, and be communicated with described discharge pipe one end according to the air outlet of air-treatment unit described in gas flow direction, the described discharge pipe other end is connected with air-conditioned room.
6. central air conditioner system according to claim 2, is characterized in that, described backwind tube is communicated with the return air inlet of air-conditioned room.
7. central air conditioner system according to claim 3, is characterized in that, described radiator cooler is surface cooler.
CN201520911855.XU 2015-11-16 2015-11-16 Central air conditioning system Expired - Fee Related CN205119299U (en)

Priority Applications (1)

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CN201520911855.XU CN205119299U (en) 2015-11-16 2015-11-16 Central air conditioning system

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Application Number Priority Date Filing Date Title
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CN205119299U true CN205119299U (en) 2016-03-30

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106168399A (en) * 2016-08-17 2016-11-30 江苏兆胜空调有限公司 A kind of low noise distributed IDFC Climate Control Module unit
CN106196357A (en) * 2016-08-15 2016-12-07 江苏兆胜空调有限公司 A kind of Intelligent region formula air-conditioning unit
CN111043793A (en) * 2019-12-17 2020-04-21 上海理工大学 Double fresh air and double exhaust multifunctional swimming pool heat pump air conditioning unit
CN111271782A (en) * 2020-01-21 2020-06-12 中国人民解放军火箭军工程设计研究院 Fresh air and tail end jet type temperature and humidity control system and control method for underground building

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106196357A (en) * 2016-08-15 2016-12-07 江苏兆胜空调有限公司 A kind of Intelligent region formula air-conditioning unit
CN106168399A (en) * 2016-08-17 2016-11-30 江苏兆胜空调有限公司 A kind of low noise distributed IDFC Climate Control Module unit
CN111043793A (en) * 2019-12-17 2020-04-21 上海理工大学 Double fresh air and double exhaust multifunctional swimming pool heat pump air conditioning unit
CN111043793B (en) * 2019-12-17 2021-07-13 上海理工大学 Double fresh air and double exhaust multifunctional swimming pool heat pump air conditioning unit
CN111271782A (en) * 2020-01-21 2020-06-12 中国人民解放军火箭军工程设计研究院 Fresh air and tail end jet type temperature and humidity control system and control method for underground building
CN111271782B (en) * 2020-01-21 2020-10-30 中国人民解放军火箭军工程设计研究院 Fresh air and tail end jet type temperature and humidity control system and control method for underground building

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Granted publication date: 20160330

Termination date: 20191116