CN206247552U - Central air-conditioning automatic optimal energy-saving controller - Google Patents
Central air-conditioning automatic optimal energy-saving controller Download PDFInfo
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- CN206247552U CN206247552U CN201620639189.3U CN201620639189U CN206247552U CN 206247552 U CN206247552 U CN 206247552U CN 201620639189 U CN201620639189 U CN 201620639189U CN 206247552 U CN206247552 U CN 206247552U
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Abstract
Central air-conditioning automatic optimal energy-saving controller, including control system, the control system by PLC control modules, central controller and data processor group into, air-conditioning refrigeration system connects data processor, data processor connects central controller, central controller is bi-directionally connected with PLC control modules, and PLC control modules connect compressor, cooling tower, cooling tower water mobile equilibrium valve, chilled water pump frequency converter and the cooling water pump frequency converter of air-conditioning refrigeration system；The central air-conditioning automatic optimal energy-saving controller detects parameter by sensor, the operating of each device in controlling air-conditioning refrigeration system by PLC control modules after data processor and central controller treatment, the system that the target of energy-conservation is focused on whole central air-conditioning operation, the overall energy-conservation of system is ensure that, is worth promoting.
Description
Technical field
The utility model is related to central air-conditioning energy to transform field, especially a kind of central air-conditioning automatic optimal Energy Saving Control
Device.
Background technology
Persistently develop the continuous improvement with living standards of the people rapidly with national economy, air-conditioning equipment is wide in every field
General to use, the especially use of central air conditioner system is substantially increased the energy consumption of building.According to statistics, in civil buildings, center
Air-conditioning system typically constitutes from the 50~60% of total energy consumption, and in air-conditioning system, calculator room equipment energy consumption accounts for 70% left side of whole system energy consumption
The right side, thus central air conditioner system energy-conservation emphasis in computer room part.
It is equipment reducing energy consumption in itself is placed on main attention, such as cold during conventional central Air Conditioning Facilities reducing energy consumption more
Freeze the frequency conversion of water pump and cooling water pump, although these modification measures reduce equipment energy consumption in itself really, but due to reducing
While energy consumption, some operational factors of equipment are also changed, and the change of these parameters often increased whole system
Burden, that is to say the grimace of our " energy-conservations but do not save money " through being commonly encountered.Reason is that central air conditioner system is a close coupling
System, many equipment are contained in system, while influenceing the factor of system energy consumption a lot, a part energy-conservation is changed merely
The energy consumption for being difficult to take into account system all devices is made to save, therefore the energy-conservation of central air conditioner system must be using whole system as one
Individual energy-conservation object, only whole system energy consumption is reduced, and just calculates the purpose for reaching energy-conservation.
Utility model content
The utility model aims to provide one kind and detects parameter by sensor, at data processor and central controller
By the central air-conditioning automatic optimal Energy Saving Control of the operating of each device in PLC control modules control air-conditioning refrigeration system after reason
Device.
To achieve the above object, the utility model provides following technical scheme：Central air-conditioning automatic optimal energy-saving controller,
Including control system, the control system is by PLC control modules, central controller and data processor group into the control system
Connection air-conditioning refrigeration system, air-conditioning refrigeration system is made up of compressor, cooling tower, evaporator and condenser, the condenser
Coolant outlet connects the import of cooling tower by pipeline, and the pipeline is provided with cooling water inlet temperature sensor, cooling tower
Import is provided with cooling tower water mobile equilibrium valve, and blower fan of cooling tower is installed on cooling tower, and the outlet of cooling tower is connected by cooling water pump
The cooling water inlet of condenser, is provided with cooling water outlet temperature sensor between cooling water pump and cooling tower, cooling water pump with it is cold
Cooling water flow sensor is provided between condenser；The refrigerant import of the outlet connection condenser of compressor, the refrigerant of condenser goes out
Mouth is connected to the refrigerant import of evaporator by expansion valve, and the refrigerant exit of evaporator connects the import of compressor by pipeline；
The chilled water outlet of evaporator connects machine import in air conditioning terminal by pipeline, and the pipeline is provided with chilled water outlet TEMP
Device, the chilled water import of evaporator passes through the outlet that chilled water pump connects machine in air conditioning terminal, the chilled water pump and evaporator it
Between be provided with chilled water import temperature sensor and chilled water flow quantity sensor；The chilled water flow quantity sensor, cooling water flow
Sensor, chilled water outlet temperature sensor, chilled water import temperature sensor, cooling water inlet temperature sensor, cooling water
Machine is all connected to data processor in outlet temperature sensor and air conditioning terminal, is installed on the optical sensor and outdoor temp of outdoor
Degree sensor equally connects data processor, and data processor connection central controller, central controller is double with PLC control modules
To connection, PLC control modules connection compressor, cooling tower, cooling tower water mobile equilibrium valve, chilled water pump frequency converter and cooling water pump
Frequency converter, wherein chilled water pump frequency converter and cooling water pump frequency converter connect chilled water pump and cooling water pump respectively.
As further scheme of the present utility model：The compressor is provided with many, the quantity of chilled water pump and compressor
Correspondence.
As further scheme of the present utility model：The cooling tower is provided with several.
As further scheme of the present utility model：The freezing water entrance of the evaporator is connected in air conditioning terminal respectively
The export and import of the fan coil of machine.
Compared with prior art, the beneficial effects of the utility model are：The central air-conditioning automatic optimal energy-saving controller leads to
Sensor detection parameter is crossed, by controlling air conditioner refrigerating system by PLC control modules after data processor and central controller treatment
The operating of each device in system, the system that the target of energy-conservation is focused on whole central air-conditioning operation, it is ensured that system entirety
Energy-conservation；
The utility model introduces Energy Saving of Central Air-conditioning index system efficiency ratio, referred to as SCOP values.SCOP values are
Drawn by the overall refrigerating effect of system and the ratio of the total input power of system, it is to weigh a central air conditioner system operation to be
The major criterion of no energy-conservation.SCOP values are bigger, and explanation system effectiveness is higher, runs also more energy-conservation；Otherwise SCOP values are smaller, then
Illustrate that system effectiveness is lower, operation also just not energy-conservation.The introducing of SCOP values by the target of energy-conservation not focus on individual equipment, but
The system of whole central air-conditioning operation, this ensures that theres the overall energy-conservation of system, truly reaches i.e. energy-conservation and saves money again
Purpose.
Brief description of the drawings
Fig. 1 is controller principle figure of the present utility model；
Fig. 2 is Energy Saving Control program process figure of the present utility model.
In figure：1- compressors；2- chilled water pumps；3- cooling water pumps；4- cooling towers；5- chilled water flow quantity sensors；6- is cold
But water flow sensor；7- chilled water outlet temperature sensors；8- chilled water import temperature sensors；9- cooling tower water mobile equilibriums
Valve；10- cooling water inlet temperature sensors；11- cooling water outlet temperature sensors；12- chilled water pump frequency converters；13- is cooled down
Pump variable frequency device；14-PLC control modules；15- central controllers；16- data processors；17- outdoor temperature sensor；18- light
According to sensor；21- condensers；22- evaporators；Machine in 23- air conditioning terminals.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, in the utility model embodiment, central air-conditioning automatic optimal energy-saving controller, including control system
System, the control system is made up of PLC control modules 14, central controller 15 and data processor 16, control system connection
Air-conditioning refrigeration system, air-conditioning refrigeration system is made up of compressor 1, cooling tower 4, evaporator 22 and condenser 21, the condenser
21 coolant outlet connects the import of cooling tower 4 by pipeline, and the pipeline is provided with cooling water inlet temperature sensor 10, cold
But the import of tower 4 is provided with cooling tower water mobile equilibrium valve 9, and blower fan of cooling tower is installed on cooling tower 4, and the outlet of cooling tower 4 is by cold
But water pump 3 connects the cooling water inlet of condenser 21, and cooling water outlet temperature sensing is provided between cooling water pump 3 and cooling tower 4
Device 11, is provided with cooling water flow sensor 6 between cooling water pump 3 and condenser 21；
The refrigerant import of the outlet connection condenser 21 of compressor 1, the refrigerant exit of condenser 21 is connected by expansion valve
To the refrigerant import of evaporator 22, the refrigerant exit of evaporator 22 passes through the import that pipeline connects compressor 1；
The chilled water outlet of evaporator 22 connects the import of machine 23 in air conditioning terminal by pipeline, and the pipeline is provided with chilled water
Outlet temperature sensor 7, the chilled water import of evaporator 22 connects the outlet of machine 23 in air conditioning terminal by chilled water pump 2, should
Chilled water import temperature sensor 8 and chilled water flow quantity sensor 5 are provided between chilled water pump 2 and evaporator 22；
The chilled water flow quantity sensor 5, cooling water flow sensor 6, chilled water outlet temperature sensor 7, chilled water
Inlet temperature sensor 8, cooling water inlet temperature sensor 10, cooling water outlet temperature sensor 11 and machine 23 in air conditioning terminal
Data processor 16 is all connected to, is installed at the optical sensor 18 of outdoor and outdoor temperature sensor 17 equally connection data
Reason device 16, the connection central controller 15 of data processor 16, central controller 15 is bi-directionally connected with PLC control modules 14, PLC controls
The connection of molding block 14 compressor 1, cooling tower 4, cooling tower water mobile equilibrium valve 9, chilled water pump frequency converter 12 and cooling water pump frequency conversion
Device 13, wherein chilled water pump frequency converter 12 and cooling water pump frequency converter 13 connect chilled water pump 2 and cooling water pump 3 respectively.
Further, the freezing water entrance of the evaporator 22 connects going out for the fan coil of machine 23 in air conditioning terminal respectively
Mouth and import.
Operation principle of the present utility model and its application method：First, the control of compressor 1：
The temperature value transmitted by chilled water outlet temperature sensor 7 and chilled water import temperature sensor 8, to compressor
1 carries out start-up and shut-down control.
When the leaving water temperature of chilled water reaches setting value, and indoor environment temperature is when meeting temperature requirements, compressor 1
Begin to enter unloading shutdown procedure；When the return water temperature of chilled water rises to setting value, and indoor temperature is unsatisfactory for needing
When asking, compressor 1 replys former running status.
When system has multiple compressors 1, the number of units that compressor 1 puts into operation is controlled by the time.System compressors
1 operation is to open successively in sequence, and when system provides the order of unlatching, system can automatic checkout system each main frame first
Run time, starts since the minimum compressor 1 of run time.When running for many simultaneously, the Automatic-searching of compressor 1 is optimal
Efficiency is started shooting.
2nd, the control of chilled water pump 2：
The unlatching of chilled water pump 2 is one-to-one with compressor 1, and before compressor 1 is opened, corresponding chilled water pump 2 is first
First open.Compressor 1 opens several, and chilled water pump 2 also accordingly opens several.
The stopping of chilled water pump 2 by compressor 1 Determines, when compressor 1 be in " startup " and " standby " state, then
Chilled water pump 2 runs always, does not stop.Only when compressor 1 is in stopped status, corresponding chilled water pump 2 just stops fortune
OK.
The rotating speed of chilled water pump 2 is adjusted according to chilled water outlet temperature sensor 7 and chilled water import temperature sensor 8
Section, the rotating speed of chilled water pump 2 is adjusted from %~%.By adjusting the rotating speed of chilled water pump 2, chilled water leaving water temperature is reached most
Good effect, and reducing energy consumption.
3rd, cooling water pump 3 is controlled：
The control of cooling water pump 3 is corresponding with the start and stop of compressor 1, and when compressor 1 is opened, corresponding cooling water pump 3 is opened
Open, when compressor 1 is shut down, corresponding cooling water pump 3 stops therewith.
The rotating speed of cooling water pump 3 is adjusted by the turnover coolant-temperature gage of cooling water, according to service condition setting turnover water temperature difference,
The rotating speed of water pump is adjusted from 50%~100%.Cooling water pump 3 adjusts pump rotary speed by the backwater temperature difference that enters of pipeline, has reached cold
But the optimum efficiency of water leaving water temperature.The energy consumption of cooling water pump 3 will so be substantially reduced.
4th, the control of cooling tower 4：
Cooling tower 4 starts and stops being linked with cooling water pump 3, and when cooling water pump 3 is opened, cooling tower 4 starts to start, cold
But when water pump 3 stops, cooling tower 4 is also corresponding to be stopped.
The regulation control of cooling tower 4 is realized by cooling water inlet temperature.When cooling water outlet temperature reaches certain setting
During value, cooling tower 4 is opened, and cooling water outlet temperature is raised afterwards, accordingly increases the operation blower fan of cooling tower 4；Outdoor temperature drops
When low, cooling water outlet temperature reduction is corresponding to reduce the operation blower fan of cooling tower 4, until cooling water outlet temperature is less than setting
During value, the wholly off operation of cooling tower 4.In addition, when cooling water outlet temperature is higher than set temperature value, all cooling towers 4 are complete
Open in portion.
Another main task of the Energy Saving Control of cooling tower 4 is just to maintain cooling water mobile equilibrium, only cooling water levelling
Weigh, can just give play to the effect of the maximum of cooling tower 4.Control cooling water mobile equilibrium is mainly completed by current balanced valve.Water
Mobile equilibrium valve can be according to set pressure differential value and the opening flow automatic regulation of cooling tower 4, so as to ensure water-carrying capacity
Balance can preferentially make the cooling tower 4 that current are opened by blower fan again.
5th, specific Energy Saving Control program process is as follows：As shown in Fig. 2 by center managing and control system to chilled water pump 2, cold
But the coordinated signals of the equipment such as water pump 3, cooling tower 4, carry out the parameters value of regulating system so that all operational factors and compression
The cloud heart of machine 1 matches, and reaches optimal energy-saving run effect.Saving pipe controlled system uses automatic by central controller 15 simultaneously
Optimization technology, system sets self recording apparatus most power save mode operational factor by the way that PLC control modules 14 are all to system
It is standby to be controlled adjustment, it is ensured that system is constantly in the maximization of scop values, so as to keep energy-saving run.
All operation informations are uploaded to central controller 15 by data processor 16, are adopted by a large amount of constructing operation data
Collection, ONLINE RECOGNITION operation troubles and poorly efficient link, realize that running is visualized.System scop is found secondly by data analysis
Operational factor when value is maximum, and record tracking automatically.As long as system scop values can be automatically adjusted less than record maximum, system
Parameter, the moment keeps the operation of system most power save mode.And differentiate online, point out to repair failure, finally cause that fractional energy savings can be ensured
Several years is unattenuated.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (4)
1. central air-conditioning automatic optimal energy-saving controller, including control system, it is characterised in that the control system is controlled by PLC
Molding block（14）, central controller（15）And data processor（16）Composition, control system connection air-conditioning refrigeration system, air-conditioning
Refrigeration system is by compressor（1）, cooling tower（4）, evaporator（22）And condenser（21）Composition, the condenser（21）Cooling
Water out connects cooling tower by pipeline（4）Import, the pipeline is provided with cooling water inlet temperature sensor（10）, cooling tower
（4）Import be provided with cooling tower water mobile equilibrium valve（9）, cooling tower（4）Upper installation blower fan of cooling tower, cooling tower（4）Outlet lead to
Supercooling water pump（3）Connection condenser（21）Cooling water inlet, cooling water pump（3）With cooling tower（4）Between be provided with cooling water
Outlet temperature sensor（11）, cooling water pump（3）With condenser（21）Between be provided with cooling water flow sensor（6）；Compressor
（1）Outlet connection condenser（21）Refrigerant import, condenser（21）Refrigerant exit evaporator is connected to by expansion valve
（22）Refrigerant import, evaporator（22）Refrigerant exit compressor is connected by pipeline（1）Import；Evaporator（22）It is cold
Freezing water outlet connects machine in air conditioning terminal by pipeline（23）Import, the pipeline is provided with chilled water outlet temperature sensor（7）,
Evaporator（22）Chilled water import pass through chilled water pump（2）Machine in connection air conditioning terminal（23）Outlet, the chilled water pump（2）
With evaporator（22）Between be provided with chilled water import temperature sensor（8）With chilled water flow quantity sensor（5）；The chilled water flow
Quantity sensor（5）, cooling water flow sensor（6）, chilled water outlet temperature sensor（7）, chilled water import temperature sensor
（8）, cooling water inlet temperature sensor（10）, cooling water outlet temperature sensor（11）With machine in air conditioning terminal（23）It is all connected with
To data processor（16）, it is installed on the optical sensor of outdoor（18）And outdoor temperature sensor（17）At same connection data
Reason device（16）, data processor（16）Connection central controller（15）, central controller（15）With PLC control modules（14）It is two-way
Connection, PLC control modules（14）Connection compressor（1）, cooling tower（4）, cooling tower water mobile equilibrium valve（9）, chilled water pump frequency conversion
Device（12）With cooling water pump frequency converter（13）, wherein chilled water pump frequency converter（12）With cooling water pump frequency converter（13）Connect respectively
Chilled water pump（2）And cooling water pump（3）.
2. central air-conditioning automatic optimal energy-saving controller according to claim 1, it is characterised in that the compressor（1）
It is provided with many, chilled water pump（2）With compressor（1）Quantity correspondence.
3. central air-conditioning automatic optimal energy-saving controller according to claim 1, it is characterised in that the cooling tower（4）
It is provided with several.
4. central air-conditioning automatic optimal energy-saving controller according to claim 1, it is characterised in that the evaporator（22）
Freezing water entrance connect machine in air conditioning terminal respectively（23）Fan coil export and import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620639189.3U CN206247552U (en) | 2016-06-24 | 2016-06-24 | Central air-conditioning automatic optimal energy-saving controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620639189.3U CN206247552U (en) | 2016-06-24 | 2016-06-24 | Central air-conditioning automatic optimal energy-saving controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686364A (en) * | 2019-10-18 | 2020-01-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
| CN115235051A (en) * | 2022-07-27 | 2022-10-25 | 广州市铭汉科技股份有限公司 | Double-control type efficient cooling water control system |
-
2016
- 2016-06-24 CN CN201620639189.3U patent/CN206247552U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686364A (en) * | 2019-10-18 | 2020-01-14 | 广东美的暖通设备有限公司 | Air conditioner control method and device and computer readable storage medium |
| CN115235051A (en) * | 2022-07-27 | 2022-10-25 | 广州市铭汉科技股份有限公司 | Double-control type efficient cooling water control system |
| CN115235051B (en) * | 2022-07-27 | 2023-03-14 | 广州市铭汉科技股份有限公司 | Double-control cooling water control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180521 Address after: 100176 Beijing Beijing economic and Technological Development Zone Jingyuan North Street 2, 60, 5, 501 Patentee after: Zhongqi Energy Technology Co., Ltd. Address before: 100026 Chaoyang District, Beijing, Xiang Jun Nan lane two lane five rain Lin building 15. Patentee before: BEIJING PIONEER TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |