CN206739524U - A kind of central air conditioner system cooling tower energy-saving controller - Google Patents
A kind of central air conditioner system cooling tower energy-saving controller Download PDFInfo
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- CN206739524U CN206739524U CN201720079633.5U CN201720079633U CN206739524U CN 206739524 U CN206739524 U CN 206739524U CN 201720079633 U CN201720079633 U CN 201720079633U CN 206739524 U CN206739524 U CN 206739524U
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- cooling tower
- blower fan
- temperature sensor
- data processor
- plc control
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Abstract
The utility model discloses a kind of central air conditioner system cooling tower energy-saving controller, including cooling tower outlet temperature sensor, cooling tower return water temperature sensor, cooling tower pressure sensor, blower fan of cooling tower, pump variable frequency device, PLC control modules, central controller, current balanced valve and data processor；Current balanced valve is arranged on the pipeline on the upside of blower fan of cooling tower, and current balanced valve is connected with cooling tower outlet temperature sensor, and cooling tower outlet temperature sensor is connected to PLC control modules；Cooling tower flow sensor is additionally provided with outlet conduit, cooling tower flow sensor is connected to data processor, and data processor is connected to central controller；Cooling tower return water temperature sensor is connected to PLC control modules, and data processor is connected to central controller, central controller controls PLC control modules.The utility model improves the Energy Efficiency Ratio of main frame, is finally reached the purpose for reducing whole energy consumption of machine room by comprehensive control to cooling tower.
Description
Technical field
Central air conditioning equipment technical field is the utility model is related to, specifically a kind of central air conditioner system cooling tower energy-conservation control
Device processed.
Background technology
Found by the distribution for studying building energy consumption, the energy consumption of the central air-conditioning accounting 50- generally in total energy consumption is built
60%, and in the energy consumption of central air-conditioning, the energy consumption and accounting 70% of central air conditioner room.Therefore, Central Air-condition Refrigerator room
It is energy-conservation emphasis.It is big that central air conditioner room system energy consumption equipment mainly includes main frame, chilled water pump, cooling water pump and cooling tower four
Part, wherein it is especially maximum with the energy consumption accounting of unit, up to 70%, therefore the operational efficiency of unit how is effectively improved, be
Reduce the key point of whole energy consumption of machine room.And cooling tower is exactly the capital equipment for being directly connected to unit eer height.It is cold
But tower controls whether rationally, whether parameter setting is accurate, and whether Energy Saving Strategy is appropriate, by as the pass of Energy Saving of Central Air-conditioning
Key factor.
In central air conditioner system, because blower fan of cooling tower energy consumption is smaller, therefore usually ignored by conservation measures, this is
It is incorrect.Because central air conditioner system is the system of a close coupling, the height of system energy consumption is relevant with many factors, especially
It is the temperature change of external environment, central air conditioner system is influenceed very huge, and what is be closely related with external environment is exactly cold
But tower.Therefore the energy-conservation of central air conditioner system, it is necessary to the Energy Saving Control of cooling tower is brought into Energy Saving Strategy, otherwise must
The failure of the loss of energy-saving effect, even reducing energy consumption will be caused.The logic control method of cooling tower includes following side
Face：
1. the start-up and shut-down control of cooling tower
Cooling tower starts and stopped to link with cooling water pump, and when cooling water pump is opened, blower fan of cooling tower starts to start, cold
But when water pump stops, blower fan of cooling tower also accordingly stops.
2. the adjustment control of cooling tower
The adjustment control of start and stop blower fan of cooling tower is realized by cooling water inlet temperature.When cooling water temperature reaches 25 DEG C
When, blower fan of cooling tower opens 1, and cooling water temperature often raises 1 DEG C afterwards, increases by 1 cooling tower operation blower fan；Temperature reduces
When, cooling water inlet temperature often reduces by 1 DEG C, closes 1 operation blower fan, when temperature is less than 25 DEG C, the wholly off fortune of blower fan
OK.In addition, when cooling water inlet temperature is higher than 32 DEG C, all blower fan of cooling tower must be all turned on.
Cooling tower opening sequence, determined according to the run time of every Fans, be from accumulative operation when starting every time
Time minimum blower fan starts to start.The time interval opened or stopped per Fans is 15 minutes.
3. the control of cooling tower water mobile equilibrium
Another main task of cooling tower Energy Saving Control is just to maintain cooling water mobile equilibrium, only cooling water mobile equilibrium
, can just give play to the maximum effect of cooling tower.Control cooling water mobile equilibrium is mainly completed by electric control valve.Electric adjustable
Saving valve can be according to set pressure differential value and the opening flow automatic regulation of blower fan of cooling tower, so as to ensure water-carrying capacity
Balance and can preferentially makes the cooling tower that current are opened by blower fan.
Utility model content
The purpose of this utility model is to provide a kind of central air conditioner system cooling tower energy-saving controller, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of central air conditioner system cooling tower energy-saving controller, including cooling tower outlet temperature sensor, cooling tower backwater
Temperature sensor, cooling tower pressure sensor, blower fan of cooling tower, pump variable frequency device, PLC control modules, central controller, current
Balanced valve and data processor；The current balanced valve is arranged on the pipeline on the upside of blower fan of cooling tower, current balanced valve with it is cold
But tower outlet temperature sensor connects, and cooling tower outlet temperature sensor is connected to PLC control modules；On the outlet conduit also
Cooling tower flow sensor is provided with, the cooling tower flow sensor is connected to data processor, and data processor is connected to
Central controller；The outlet conduit is communicated to condenser, and the condensed chilled water of condenser connects back to cooling tower by pipeline
Blower fan；The cooling tower return water temperature sensor is connected to PLC control modules, and cooling tower pressure sensor is connected to data processing
Device, the data processor are connected to central controller, central controller controls PLC control modules, and PLC control modules are connected to
Pump variable frequency device, the pump variable frequency device are communicated to cooling water pump and blower fan of cooling tower.
As further program of the utility model：The quantity of the blower fan of cooling tower more than one, multiple cooling towers
Blower fan laid out in parallel, the pipeline come out from blower fan of cooling tower are aggregated into outlet conduit.
As the utility model further scheme：The cooling tower pressure sensor is arranged under blower fan of cooling tower
Side.
As the utility model further scheme：Outdoor temperature sensor is additionally provided with the outside of cooling tower, it is described
Outdoor temperature sensor is connected to data processor.
As the utility model further scheme：Optical sensor, the illumination are additionally provided with the outside of cooling tower
Sensor is connected to data processor.
Compared with prior art, the beneficial effects of the utility model are：
The utility model makes its central air conditioner system time of running with whole place by comprehensive control to cooling tower
Match, so as to improve the Energy Efficiency Ratio of main frame, be finally reached the purpose for reducing whole energy consumption of machine room.
Brief description of the drawings
Fig. 1 is the structural representation of central air conditioner system cooling tower energy-saving controller.
Fig. 2 is power saving logic control flow chart in central air conditioner system cooling tower energy-saving controller.
In figure：1- cooling tower outlet temperature sensors, 2- cooling tower return water temperature sensors, 3- cooling tower flow sensings
Device, 4- cooling tower pressure sensors, 5- blower fan of cooling tower, 6- pump variable frequency devices, 7-PLC control modules, 8- central controllers, 9-
Data processor, 10- optical sensors, 11- outdoor temperature sensor, 12- condensers, 13- cooling water pumps, 14- current balance
Valve.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, 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 obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, in the utility model embodiment, a kind of central air conditioner system cooling tower energy-saving controller, including it is cold
But tower outlet temperature sensor 1, cooling tower return water temperature sensor 2, cooling tower flow sensor 3, cooling tower pressure sensor
4th, blower fan of cooling tower 5, pump variable frequency device 6, PLC control modules 7, central controller 8, current balanced valve 14 and data processor 9；
The current balanced valve 14 is arranged on the pipeline of the upside of blower fan of cooling tower 5, and current balanced valve 14 passes with cooling tower leaving water temperature
Sensor 1 is fixedly connected, and the cooling tower outlet temperature sensor 1 is connected to PLC control modules 7, and the PLC control modules 7 connect
It is connected to central controller 8；The leaving water temperature of cooling tower is passed to PLC control modules 7 by cooling tower outlet temperature sensor 1；
The quantity of the blower fan of cooling tower 5 more than one, multiple laid out in parallel of blower fan of cooling tower 5, from blower fan of cooling tower 5
Pipeline out is aggregated into outlet conduit, and cooling tower flow sensor 3, the cooling tower stream are additionally provided with the outlet conduit
Quantity sensor 3 is used to detect the water-carrying capacity in outlet conduit, and the cooling tower flow sensor 3 is connected to data processor 9, institute
State data processor 9 and be connected to central controller 8；The outlet conduit is communicated to condenser 12, the condensed freezing of condenser
Water connects back to blower fan of cooling tower 5 by pipeline；The condenser 12 is connected to evaporator by pipeline, and the evaporator is connected to
Air conditioning terminal user；Heat is shifted by evaporator；
The cooling tower return water temperature sensor 2 is connected to PLC control modules 7, and the cooling tower pressure sensor 4 is set
In the downside of blower fan of cooling tower 5, cooling tower pressure sensor 4 is connected to data processor 9, and the data processor 9 is connected to
Central controller 8, outdoor temperature sensor 11 and optical sensor 10 are additionally provided with the outside of cooling tower, and the outdoor temperature passes
Sensor 11 and optical sensor 10 are connected to data processor 9, and data processor 9 is used to collecting various data, and by data
Central controller 8, the control PLC control module 7 of central controller 8 are passed to, PLC control modules 7 are connected to pump variable frequency device 6,
The pump variable frequency device 6 is communicated to cooling water pump 13 and blower fan of cooling tower 5.
Operation principle of the present utility model is：
The temperature of water outlet is tested by cooling tower outlet temperature sensor 1 first, cooling tower outlet temperature sensor 1 will be surveyed
The structure of examination passes to PLC control modules 7, and PLC feeds back information to central controller 8, and central controller 8 can be controlled PLC
Module 7 issues the instruction of cooling tower start and stop；
When the temperature that cooling tower outlet temperature sensor 1 tests water outlet reaches 25 DEG C, and outdoor temperature sensor 11
The outdoor temperature detected is higher than 23 DEG C, and blower fan of cooling tower 5 starts to start 1, and cooling tower outlet temperature sensor 1 goes out afterwards
Mouth temperature often raises 1 DEG C, increases by 1 cooling tower operation blower fan；
When the temperature decreases, cooling water inlet temperature often reduces by 1 DEG C, 1 cooling tower operation blower fan is closed, until temperature is low
When 25 DEG C, cooling tower operation 5 wholly off operation of blower fan；When cooling water return water temperature 3 is higher than 37 DEG C, all cooling tower wind
Machine 5 is forced to be all turned on.
The opening sequence of blower fan of cooling tower 5, is determined according to the run time of every Fans, is from tired when starting every time
The minimum blower fan of meter run time starts to start.The time interval opened or stopped per Fans is 15 minutes.
The pressure value transmitted by cooling tower pressure sensor 4, and pressure information is passed into data processor 9, data
Processor 9, data information transfer is adjusted to central controller 8, the control PLC control module 7 of central controller 8 according to pressure value
The problem of water saving mobile equilibrium；
When the pressure value for the cooling tower water inlet that cooling tower pressure sensor 4 detects is unequal, that is, current injustice be present
Weighing apparatus.When the pressure value of a cooling tower inlet pipeline is higher than other line pressures, corresponding current balanced valve 14 will be reduced
Aperture, while the cooling tower that cooling tower pressure sensor 4 detects, cooling tower inlet pipeline pressure value are less than other loine pressures
The current balanced valve 14 of the pipeline of value will increase aperture, until the line pressure of all water inlets of cooling tower group is equal, then current
Balanced valve 14 stops regulation, and now cooling tower totality current are up to balance.
Finally whether all blower fan of cooling tower 5 are opened, and the check of data is carried out by the Energy Efficiency Ratio of compressor.
When compressor Energy Efficiency Ratio reduces, number of units is opened in the increase of blower fan of cooling tower 5, when compressor Energy Efficiency Ratio switchs to reduce by increasing,
Blower fan of cooling tower 5 stops opening number of units, and keeps the maximum operation quantity of Energy Efficiency Ratio.
Cooling tower power saving logic control flow chart is illustrated in figure 2, as cooling tower outlet temperature Th and outdoor environment temperature
After spending the output of Tw values, data processor 9 carries out data processing to temperature parameter, and data signal is converted into by analog quantity.Then enter
Enter to PLC control modules 7 and carry out logic analysis and judgement, the numerical value collected is calculated and compared with the numerical value set.
Then the program worked out before, exports execute instruction automatically.Exporting order will be to control object, the i.e. He of blower fan of cooling tower 5
Current balanced valve 14 is controlled, and it is started or is stopped, and also or carries out necessary regulation.The cop fed back according to compressor
After value amendment, the action of Energy Saving Control is completed.Finally so that the power output of whole central air-conditioning is saved the most, reach energy-conservation and subtract
The purpose of row.
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, it can realize that this practicality is new in other specific forms
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 embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of central air conditioner system cooling tower energy-saving controller, it is characterised in that including cooling tower outlet temperature sensor
(1), cooling tower return water temperature sensor (2), cooling tower pressure sensor (4), blower fan of cooling tower (5), pump variable frequency device (6),
PLC control modules (7), central controller (8), current balanced valve (14) and data processor (9)；The current balanced valve (14)
It is arranged on the pipeline on the upside of blower fan of cooling tower (5), current balanced valve (14) is connected with cooling tower outlet temperature sensor (1),
Cooling tower outlet temperature sensor (1) is connected to PLC control modules (7)；Cooling tower flow sensor is provided with outlet conduit
(3), the cooling tower flow sensor (3) is connected to data processor (9), and data processor (9) is connected to central controller
(8)；The outlet conduit is communicated to condenser (12), and the condensed chilled water of condenser connects back to blower fan of cooling tower by pipeline
(5)；The cooling tower return water temperature sensor (2) is connected to PLC control modules (7), and cooling tower pressure sensor (4) is connected to
Data processor (9), the data processor (9) are connected to central controller (8), central controller (8) control PLC control mould
Block (7), PLC control modules (7) are connected to pump variable frequency device (6), the pump variable frequency device (6) be communicated to cooling water pump (13) and
Blower fan of cooling tower (5).
2. central air conditioner system cooling tower energy-saving controller according to claim 1, it is characterised in that the cooling tower wind
The quantity of machine (5) more than one, multiple blower fan of cooling tower (5) laid out in parallel, from blower fan of cooling tower (5) come out pipeline collect
To outlet conduit.
3. central air conditioner system cooling tower energy-saving controller according to claim 2, it is characterised in that the cooling tower pressure
Force snesor (4) is arranged on the downside of blower fan of cooling tower (5).
4. central air conditioner system cooling tower energy-saving controller according to claim 3, it is characterised in that the outside of cooling tower
Outdoor temperature sensor (11) is additionally provided with, the outdoor temperature sensor (11) is connected to data processor (9).
5. central air conditioner system cooling tower energy-saving controller according to claim 4, it is characterised in that the outside of cooling tower
Optical sensor (10) is additionally provided with, the optical sensor (10) is connected to data processor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079633.5U CN206739524U (en) | 2017-01-21 | 2017-01-21 | A kind of central air conditioner system cooling tower energy-saving controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720079633.5U CN206739524U (en) | 2017-01-21 | 2017-01-21 | A kind of central air conditioner system cooling tower energy-saving controller |
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| Publication Number | Publication Date |
|---|---|
| CN206739524U true CN206739524U (en) | 2017-12-12 |
Family
ID=60554692
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720079633.5U Active CN206739524U (en) | 2017-01-21 | 2017-01-21 | A kind of central air conditioner system cooling tower energy-saving controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636276A (en) * | 2022-05-18 | 2022-06-17 | 深圳市长誉科技有限公司 | Method and equipment for automatically reducing power consumption of refrigeration station based on Internet of things technology |
-
2017
- 2017-01-21 CN CN201720079633.5U patent/CN206739524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636276A (en) * | 2022-05-18 | 2022-06-17 | 深圳市长誉科技有限公司 | Method and equipment for automatically reducing power consumption of refrigeration station based on Internet of things technology |
| CN114636276B (en) * | 2022-05-18 | 2022-07-15 | 深圳市长誉科技有限公司 | Method and equipment for automatically reducing power consumption of refrigeration station based on Internet of things technology |
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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: 20180518 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: 100176 Beijing Daxing District Beijing economic and Technological Development Zone Jingyuan North Street 2, 60 5 stories. Patentee before: BEIJING PIONEER TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |