CN2842275Y - Can change self-regulating central air-conditioning energy-saving system according to cooling load - Google Patents
Can change self-regulating central air-conditioning energy-saving system according to cooling load Download PDFInfo
- Publication number
- CN2842275Y CN2842275Y CN 200520066507 CN200520066507U CN2842275Y CN 2842275 Y CN2842275 Y CN 2842275Y CN 200520066507 CN200520066507 CN 200520066507 CN 200520066507 U CN200520066507 U CN 200520066507U CN 2842275 Y CN2842275 Y CN 2842275Y
- Authority
- CN
- China
- Prior art keywords
- refrigeration unit
- water
- central air
- conditioning energy
- fan coil
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The utility model discloses and a kind ofly can change self-regulating central air-conditioning energy-saving system according to cooling load, comprise compression refrigeration unit, water system, supply air system and fan coil, it is characterized in that: described each fan unit pipe end is provided with the branch water pump, this minute water pump and water system constitute an independently cool cycles.Described each fan coil part also is provided with coding controller, this coding controller is gathered the demand parameter of each refrigeration unit and is sent to central control system, central control system is utilized Computer Control Technology, operational factor according to the demand of each refrigeration unit control compression refrigeration unit, supply air system and water system reaches energy-conservation purpose.
Description
Technical field
The utility model relates to central air conditioner system, relates in particular to a kind of can the variation and self-regulating central air-conditioning energy-saving system according to cooling load.
Background technology
Energy savings is a strategic task of China's economy and social development.Traditional central air conditioner system be based on constant flow operation and transmission energy principle, carry out that cooling and heating load calculates and lectotype selection based on traditional engineering design method.This design principle and engineering method can guarantee the cold and hot energy exchange in the building fully and bring up comfortable air ambient.But because the ambient temperature of building is dynamic with season and circadian variation, interior of building will cause dynamic change to central air conditioner energy workload demand to the changes in demand of cooling and heating load.Long-term result of the test shows, because the dynamic change of ambient temperature and internal load, the central air conditioner system ubiquity the invalid energy consumption more than 30%, the invalid energy consumption of some central air conditioner system even can be up to more than 50%.In other words, central air conditioner system exists the minimum energy saving space more than 30%.
In the recent period, industry has been released and installed variable-frequency governor additional in central air conditioner system, with the constant flow state of change central air conditioner system, thereby reaches energy-conservation purpose.This technology has some improvement aspect energy-conservation, but to the having relatively high expectations of compressor and system, and have the problem of " low load with strong power " equally; When loading, sharp honeybee must increase other equipment operations because of being difficult to reply again simultaneously; And in skyscraper is used cold and the big drawback of assignment of traffic difference between end-equipment can appear.
The utility model content
The purpose of this utility model is to solve problems of the prior art, proposes a kind of can the variation and self-regulating central air-conditioning energy-saving system according to cooling load.
For solving the problems of the technologies described above, the utility model can comprise according to the central air-conditioning energy-saving system that cooling load is regulated: compression refrigeration unit, water system, supply air system and fan coil, wherein: described each fan unit pipe end all is provided with the branch water pump, this minute water pump and water system constitute a cool cycles.Described each fan coil part also is provided with coding controller, and described coding controller links to each other with central control system with computer control module by hub.Described central control system is connected with the compression refrigeration unit, and controls and revise the operational factor of compression refrigeration unit, supply air system and water system by computer control module.
The utility model can also be provided with between the condensation of Condensing units and evaporation tubes and change recirculated water the flow by-pass line and the change-over valve of direction, utilizes heat pump principle to heat to air-conditioned room winter.
Maximum characteristics of the present utility model are: the operational factor that can control compression refrigeration unit, supply air system and water system according to the demand of each refrigeration unit.Even one or several refrigeration unit demand colds can make the oepration at full load of compressor high efficiency, the size of cold is controlled by the length of compressor operating time, has fundamentally realized energy-conservation purpose.
Compared with prior art, the utility model satisfies the demand volume in this refrigeration unit/room by the operation of the branch water pump of each refrigeration unit fan unit pipe end setting, thereby make refrigeration unit/room that demand is arranged in the system that the input of corresponding power just be arranged, as long as abandoned the defective that large-scale center water pump will move when original system has a refrigeration unit/room that demand is arranged, and make compressor bank always be under the high efficiency full load condition work by technological means, fundamentally reach purpose of energy saving.In addition, the utility model also is provided with the coding controller that links to each other with central control system, this encoder links to each other with central control system, by indoor control panel and its operational mode of computer software control, temperature, regularly, new wind exhaust, flow, the isoparametric two-way setting of wind speed, meet the requirements of simultaneously in the temperature that guarantees each room, energy consumption is reduced to minimum.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, wherein:
Fig. 1 is the schematic diagram of central air conditioner system in the prior art;
The schematic diagram of Fig. 2 the utility model preferred embodiment;
Fig. 3 is the schematic diagram of the utility model preferred embodiment control section.
The specific embodiment
Central air conditioner system of the prior art comprises compression refrigeration unit 1, chilled water water system, cooling water system, supply air system and fan coil 5 as shown in Figure 1.Compression refrigeration unit 1 is by certain operating mode operation, carries out heat exchange with chilled water after the evaporimeter heat exchange by the fan coil 5 that total chilled water supply-water pump 3, freezing water supply header 4 are delivered to each refrigeration unit/room.The chilled water that refluxes from fan coil 5 is back to evaporimeter through freezing backwater header 6 and cools off.After squeezing into cooling tower 7 coolings by supply-water pump 2, the cooling water of condenser outflow recycles.Because extraneous environment often cause chilled water output and cooling water flow of inlet water big, and chilled water supply backwater temperature difference and cooling water Inlet and outlet water has a narrow range of temperature, and cause the very big waste of the energy in continuous variation.
The central air-conditioning energy-saving system that the utility model proposes comprises compressor cooling unit 1, chilled water water system, cooling water system, supply air system and fan coil 5 as shown in Figure 2.Described each fan coil 5 end are provided with branch water pump 8, this minute water pump 8 constitute an independent structure of carrying out cool cycles with the chilled water water system.When some or several refrigeration units started, branch water pump 8 had substituted the chilled water supply-water pump 3 in the conventional kind of refrigeration cycle, and the chilled water after evaporator cools drives by dividing water pump 8, and the fan coil 5 that circulation is delivered to this refrigeration unit/room carries out heat exchange.At this moment, when dividing the pump capacity sum, each refrigeration unit of system is under the sub-load, compressor still is in high efficiency operation down at full capacity, water in the chilled water pipe reaches the requirement of lower limit temperature setting value very soon, use for each refrigeration unit, compressor quits work when chilled water reaches lower limit temperature; When the water temperature in the chilled water pipe slowly went back up to the ceiling temperature setting value, compressor started once more, so repeated.Also both for refrigeration unit start what, the branch water pump 8 corresponding with it must be worked simultaneously, and compressor remains at high efficiency work down at full capacity, when also both being the components of system as directed workload demand, the energy that compressor produces is greater than actual demand, the branch water pump 8 of each refrigeration unit just in the chilled water header 4 the circulation fractions be used for heat exchange, energy remaining is used by the refrigeration unit exchange that demand is arranged.Above-mentioned situation, it is the demand volume that this refrigeration unit/room is satisfied in the operation of the branch water pump 8 by each refrigeration unit fan coil 5 end setting, thereby make refrigeration unit/room that demand is arranged in the system that the input of corresponding power just be arranged, as long as total abandoned the defective that large-scale center supply-water pump 3 will move when original system has a refrigeration unit/room that demand is arranged; And make compressor remain at high efficiency down work at full capacity by technological means, and reduced the time sum that compressor operating drops into, improved the operational efficiency of equipment, reduce idle work, thereby reached purpose of energy saving.
Fig. 3 is the schematic diagram of the utility model control section.Coding controller 9 is arranged on fan coil 5 places in each refrigeration unit/room, and control panel 14 is installed on the wall in each corresponding refrigeration unit/room, and links to each other with corresponding codes controller (9) by circuit.Coding controller 9 also links to each other central control system 10 controlled operations of neutralizing the cold unit 1 of contraction, supply air system and water system by hub 11 with central control system 10 with computer control module 13.
During work, operate the button on the corresponding control panel 14 in each refrigeration unit/room, demand is passed to coding controller 9, the corresponding coding controller 9 in each refrigeration unit/room is pressed earlier the demand execution operation that control panel 14 is set, simultaneously this demand information is passed to computer control module 13 by hub 11, then by computer control module 13 statistics with revise the demand in each refrigeration unit/room, and send operating instruction and corrected parameter to the coding controller 9 in each refrigeration unit/room and compression refrigeration unit 1 and relevant device at any time.
Described coding controller 9 can be arranged on the wall in each corresponding refrigeration unit/room, also can be arranged on the window limit or other need control the place of temperature.Coding controller 9 is gathered the information of each refrigeration unit requirement at any time, be sent to the computer control module 13 that sets in advance control software then, central control system 10 is utilized the operational factor of adjusting compression refrigeration unit, supply air system and water system, make its optimal operational condition that is in the requirement load, thereby reach energy-conservation purpose.
Prior art is that compressor is moved under a certain appointment operating mode, and compressor just is in the state operation of corresponding proportion when the refrigerating capacity demand of refrigeration unit is lower than this setting value, causes the fallback energy waste.Maximum different being of the utility model and prior art: even one or several refrigeration unit demand colds, can make the oepration at full load of compressor high efficiency, the size of cold is controlled by the length of compressor operating time, has fundamentally realized energy-conservation purpose.
The utility model can on the condensation of compression refrigeration unit and evaporation tubes, be provided with change circulating water flow to by-pass line, and by control to the electrically operated valve on its pipeline, adjust the operational factor setting of main frame, thereby the handpiece Water Chilling Units of having only simple function is heated to the room according to heat pump principle winter.
Under the prerequisite of not leaving the present utility model design multiple variation can also be arranged, these variations all should be included within the claimed claim scope of the utility model.
Claims (6)
1, a kind ofly can change self-regulating central air-conditioning energy-saving system according to cooling load, comprise compression refrigeration unit (1), water system, supply air system and fan coil (5), it is characterized in that: described each fan coil (5) end is provided with one fen water pump (8), this minute water pump with cool cycles of water system formation.
2, central air-conditioning energy-saving system as claimed in claim 1 is characterized in that: described minute water pump (8) be arranged on the water outlet end of fan coil (5).
3, central air-conditioning energy-saving system as claimed in claim 1, it is characterized in that: described each fan coil (5) end is provided with coding controller (9), described coding controller (9) links to each other with the control panel that is arranged on each refrigeration unit/room (14), links to each other with central control system (10) with computer control module (13) by hub (11) simultaneously.
4, central air-conditioning energy-saving system as claimed in claim 3, it is characterized in that: described central control system (10) is connected with compression refrigeration unit (1), and controls and revise the operational factor of compression refrigeration unit, supply air system and water system by computer control module (13).
5, central air conditioner system as claimed in claim 3 is characterized in that: described coding controller (9) is arranged on the control panel of each refrigeration unit.
6, central air-conditioning energy-saving system as claimed in claim 1 is characterized in that: be provided with the by-pass line and the change-over valve that change the mobile direction of recirculated water between the condensation of Condensing units and the evaporation tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066507 CN2842275Y (en) | 2005-10-25 | 2005-10-25 | Can change self-regulating central air-conditioning energy-saving system according to cooling load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520066507 CN2842275Y (en) | 2005-10-25 | 2005-10-25 | Can change self-regulating central air-conditioning energy-saving system according to cooling load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842275Y true CN2842275Y (en) | 2006-11-29 |
Family
ID=37446157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520066507 Expired - Fee Related CN2842275Y (en) | 2005-10-25 | 2005-10-25 | Can change self-regulating central air-conditioning energy-saving system according to cooling load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842275Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865496A (en) * | 2010-06-22 | 2010-10-20 | 中国建筑第八工程局有限公司 | Chilled water direct supply system and method |
| CN106594997A (en) * | 2016-12-23 | 2017-04-26 | 新智能源系统控制有限责任公司 | Control system for temperature difference of supply and return water |
| CN106642576A (en) * | 2016-12-23 | 2017-05-10 | 新智能源系统控制有限责任公司 | Variable-gain temperature control system for air conditioner |
| CN108036482A (en) * | 2017-12-11 | 2018-05-15 | 珠海格力电器股份有限公司 | A kind of Heating,Ventilating and Air Conditioning control method and control system |
| CN109556222A (en) * | 2018-10-22 | 2019-04-02 | 珠海格力电器股份有限公司 | Unit maximum output duty control method and device |
| CN110195927A (en) * | 2019-06-04 | 2019-09-03 | 上海润风智能科技有限公司 | A kind of the chilled water system control method and device of distributed centralization air-conditioning |
-
2005
- 2005-10-25 CN CN 200520066507 patent/CN2842275Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865496A (en) * | 2010-06-22 | 2010-10-20 | 中国建筑第八工程局有限公司 | Chilled water direct supply system and method |
| CN106594997A (en) * | 2016-12-23 | 2017-04-26 | 新智能源系统控制有限责任公司 | Control system for temperature difference of supply and return water |
| CN106642576A (en) * | 2016-12-23 | 2017-05-10 | 新智能源系统控制有限责任公司 | Variable-gain temperature control system for air conditioner |
| CN106594997B (en) * | 2016-12-23 | 2019-02-19 | 新智能源系统控制有限责任公司 | Supply backwater temperature difference control system |
| CN106642576B (en) * | 2016-12-23 | 2019-03-19 | 新智能源系统控制有限责任公司 | Variable gain air-conditioner temperature control system |
| CN108036482A (en) * | 2017-12-11 | 2018-05-15 | 珠海格力电器股份有限公司 | A kind of Heating,Ventilating and Air Conditioning control method and control system |
| CN109556222A (en) * | 2018-10-22 | 2019-04-02 | 珠海格力电器股份有限公司 | Unit maximum output duty control method and device |
| CN110195927A (en) * | 2019-06-04 | 2019-09-03 | 上海润风智能科技有限公司 | A kind of the chilled water system control method and device of distributed centralization air-conditioning |
| CN110195927B (en) * | 2019-06-04 | 2021-07-20 | 上海润风智能科技有限公司 | Method and device for controlling cold water system of distributed central air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103375878B (en) | A kind of central air-conditioning freezing unit group control method | |
| CN114440410B (en) | Variable flow control method for freezing and cooling water pump based on heat exchange efficiency | |
| CN2842275Y (en) | Can change self-regulating central air-conditioning energy-saving system according to cooling load | |
| CN102455093A (en) | Energy efficiency controlling method for refrigerating system | |
| CN103017269A (en) | Solution dehumidification/regeneration heat and moisture independent treatment air conditioning device and energy-saving operation method thereof | |
| CN203837109U (en) | Integrated and combined type machine room air conditioner unit | |
| CN201163119Y (en) | Energy-saving air conditioner | |
| CN114611288A (en) | Intelligent efficient computer room energy-saving algorithm model of central air-conditioning system | |
| CN212132815U (en) | Intelligent cold station control system | |
| CN200965320Y (en) | Compressor-free energy-saving air conditioner set dedicated for machine room | |
| CN203464410U (en) | Energy-saving device for controlling heating and cooling of central air conditioner | |
| CN105135637A (en) | Central air-conditioning energy-saving control system | |
| CN102829519B (en) | Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger | |
| CN108224632A (en) | Hotel Buildings central air conditioner room chilled water system comprehensive energy efficiency lifting control method | |
| CN2706704Y (en) | Energy-saving central air conditioning device | |
| CN201476187U (en) | Dynamic energy saving system of central air-conditioning | |
| CN102538105A (en) | Air-source water-solution heat pump type refrigerating and heating system of air-conditioner and control method thereof | |
| CN202066156U (en) | Dual-temperature self-adaptive regulation and control air-conditioning unit | |
| CN206247552U (en) | Central air-conditioning automatic optimal energy-saving controller | |
| CN205037469U (en) | Fresh air conditioning refrigerating system is retrieved to heat of condensation | |
| CN211177483U (en) | Frequency conversion energy-saving transformation system suitable for precision air conditioner of fixed-frequency compressor | |
| CN112611035A (en) | Industrial air conditioner energy-saving system utilizing outdoor air in winter and transition seasons | |
| CN1195180C (en) | Central water cooling direct evaporation variable ventilation quantity combined air conditioner system | |
| CN202066161U (en) | Temperature-humidity double-parameter control air conditioning refrigerating unit | |
| CN201561530U (en) | Electric process optimization controller for a large parallel-connection center air conditioner unit and/or parallel-connection air compressor unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20131025 |