CN205783571U - A kind of central air conditioner cooling system energy-saving control apparatus - Google Patents
A kind of central air conditioner cooling system energy-saving control apparatus Download PDFInfo
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- CN205783571U CN205783571U CN201620500200.8U CN201620500200U CN205783571U CN 205783571 U CN205783571 U CN 205783571U CN 201620500200 U CN201620500200 U CN 201620500200U CN 205783571 U CN205783571 U CN 205783571U
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Abstract
This utility model relates to a kind of central air conditioner cooling system energy-saving control apparatus, including: cooling tower, cooling water pump, controller, cooling water pump is provided with converter, the import of cooling tower and outlet are separately installed with cooling tower inlet temperature sensor and cooling tower outlet temperature sensor, controller connects converter respectively, cooling tower inlet temperature sensor and cooling tower outlet temperature sensor, controller is according to cooling tower inlet temperature sensor, the temperature value signal that cooling tower outlet temperature sensor is measured and controller preset temperature value signal compare to control cooling tower, the running status of cooling water pump.This utility model controls cooling water Inlet and outlet water temperature by controller; converter is according to the rotating speed of water outlet temperature setting value regulation cooling water pump; thus regulate cooling water outlet temperature; under cold is in ideal case; and leaving water temperature is when reaching requirement; cooling pump, cooling tower can be made to shut down, it is possible to realization realizes the most energy-conservation under ensureing cold safe operation premise.
Description
Technical field
This utility model relates to air-conditioning technical field, particularly to a kind of energy-conservation control of central air conditioner cooling system
Control equipment.
Background technology
In the actual motion of air-conditioning, owing to being affected by weather or the affecting of artificial abortion, central air-conditioning
Load is being constantly occurring change, when air conditioning system is colder at weather or artificial abortion few in the case of, then
There will be ideal case, i.e. cold is out of service, and subsidiary engine continues start and runs.Refrigerating water pump in order to continue to
End cooling, it is necessary to start runs, and cooling pump, cooling tower also continue to start and run, thus having can
Can occur that the cooling inflow temperature of cold is relatively low, cause that cold is follow-up cannot be normally again started up.Because it is cold
But pump, cooling tower when cold is in holding state in order to continue the end cooling to room, so need
Continue start to run, so cause waste of energy.For reducing cooling system energy consumption, the most generally use
Cooling inflow temperature controls the start and stop of cooling tower, by the running status of Frequency Converter Control cooling pump, but this
The method of kind cannot thoroughly solve the situation that cooling water temperature is too low, is also unable to reach the maximum mesh reducing energy consumption
's.
Utility model content
Main purpose of the present utility model is, for above-mentioned deficiency of the prior art, it is provided that Yi Zhongzhong
Centre air conditioner cooling system energy-saving control apparatus, more effectively saving can electric energy, it is to avoid cold inflow temperature mistake
Low problem.
This utility model solves prior art problem and be the technical scheme is that a kind of central air-conditioning of offer
Cooling system energy-saving control apparatus, including: cooling tower, cooling water pump, controller, it is characterised in that
Cooling water pump is provided with converter, and the import of cooling tower and outlet are separately installed with cooling tower inlet temperature
Sensor and cooling tower outlet temperature sensor, controller connects converter, cooling tower inlet temperature respectively
Sensor and cooling tower outlet temperature sensor, controller is according to cooling tower inlet temperature sensor, cold
But temperature value signal and the controller preset temperature value signal that tower outlet temperature sensor is measured compare with
Control cooling tower, the running status of cooling water pump.
Preferably, the outlet of described cooling water pump is provided with cooling water pump outlet temperature sensor, is used for detecting
The water temperature flowed out from it.
Preferably, temperature difference circuit, the water temperature of cooling water pump outlet temperature sensor it are additionally provided with outside controller
It is delivered to described thermoelectric rood with the water temperature of cooling tower outlet temperature sensor and goes out temperature approach signal, described
The rotating speed of temperature approach signal incoming Frequency Converter Control cooling water pump.
Preferably, start and the shutdown command of described cooling tower follows cooling water pump switching on and shutting down order automatically.
Preferably, described central air conditioner cooling system energy-saving control apparatus be provided with at least one cooling tower or
At least one cooling water pump, described cooling tower water inlet manifold is in parallel with cooling tower water inlet branched pipe, cooling tower
Inlet temperature sensor is installed on cooling tower water inlet manifold and measures into water temperature signal with real-time.
Preferably, flowing into cooling tower outlet header after the cooling cooled tower of water, cooling tower outlet temperature senses
Device is installed on cooling tower outlet header to measure water temperature signal in real time.
Preferably, described running status be cooling tower run number of units, the start of cooling water pump, shutdown and
Rotating speed.
Preferably, cooling tower water inlet branched pipe is in series with cooling tower, the cooling tower of series connection on described branched pipe
Outlet also is provided with cooling tower outlet temperature sensor.
Preferably, after cooling tower outlet header branch, cooling water pump in parallel is connected to cool down water by pipeline again
Pump discharge house steward, the branched pipe series connection cooling water pump of cooling water pump.
At least there is techniques below effect after using technique scheme in this utility model: this utility model carries
A kind of central air conditioner cooling system Energy Saving Control air-conditioning equipment of confession, controls cooling water by controller and passes in and out
Coolant-temperature gage, converter is according to the rotating speed of water outlet temperature setting value regulation cooling water pump, thus regulates and cool down out
Coolant-temperature gage, under cold is in ideal case, and when leaving water temperature reaches requirement, can make cooling pump, cooling
Tower is shut down, it is possible to realization realizes the most energy-conservation under ensureing cold safe operation premise.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model central air conditioner cooling system Energy Saving Control air-conditioning equipment.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the spy in embodiment
Levy and can be combined with each other, with specific embodiment, the application is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, central air conditioner cooling system Energy Saving Control air-conditioning equipment includes cooling tower 20, cold
50, cooling water pump 30, controller 10.
Cooling water pump 30 is provided with converter 40, and import and the outlet of cooling tower are separately installed with cooling
Tower inlet temperature sensor 60 and cooling tower outlet temperature sensor 61, controller 10 connects frequency conversion respectively
Device 40, cooling tower inlet temperature sensor 60 and cooling tower outlet temperature sensor 61, controller root
The temperature value signal measured according to cooling tower inlet temperature sensor 60, cooling tower outlet temperature sensor 61
It is compared to control cooling tower 20, the operation of cooling water pump 30 with controller 10 preset temperature value signal
State.
Central air conditioner cooling system energy-saving control apparatus is provided with at least one cooling tower 20 or at least one
Cooling water pump 30, described cooling tower water inlet manifold is in parallel with cooling tower water inlet pipe, cooling tower inlet temperature
Sensor 60 is installed on cooling tower water inlet manifold and measures into water temperature signal with real-time.When being embodied as, such as figure
Shown in 1, being parallel with 3 cooling towers 30 after cooling tower water inlet manifold branch, cooling tower 20 water inlet manifold is pacified
Equipped with cooling tower inlet temperature sensor 60, it is not restricted to 3 cooling towers 30 the most here, cooling
The quantity of tower 30 freely can adjust according to actual application environment.
Controller 10, cooling tower inlet temperature sensor 60 are as follows with the relation of cooling tower 20:
Cooling tower inlet temperature sensor 60 detects in real time and flows to the water temperature T of flowing water in cooling tower 20in, Tin
With cooling tower 20 inflow temperature setting value TinsetCompare the operation number of units controlling cooling tower 20, specifically
For:
If Tin>Tinset, illustrate that cold in-water temperature is higher, the operation number of units of cooling tower 20 can be increased.
Preferably, controller 10 carries out time delay calculating, increases by 1 cooling tower after 5 minutes and runs, certainly,
Delay time at this can freely set.
If Tin<Tinset-1, illustrate that cold in-water temperature is relatively low, it is possible to reduce cooling tower 20 runs number of units.
Preferably, controller 10 carries out time delay calculating, reduces by 1 cooling tower after 5 minutes and runs, certainly,
Delay time at this can freely set.
Controller 10, cooling tower outlet temperature sensor 61 are as follows with the relation of cooling water pump 30:
Cooling tower outlet temperature sensor 61 detects the flowing water water temperature T flowing out cooling tower in real timeout, ToutWith
Cooling inflow temperature setting value ToutsetCompare, controlled by the converter 40 being arranged in cooling pump 30
The rotating speed of cooling water pump 30 processed, particularly as follows:
If Tout>Toutset, illustrate that the leaving water temperature cooling down water is high, need to reduce leaving water temperature, now control
Device 10 regulates, and increases the rotating speed of cooling water pump 30 upconverter 40, meets burden requirement.
If Tout<Toutset, illustrate that the leaving water temperature of cooling tower is low, need rising water outlet temperature, now control
Device regulates, and reduces the rotating speed of cooling water pump 30 upconverter 40, meets burden requirement.
As further improvement of the utility model, after controller 10 collects the holding state of cold,
And Tout<Toutset, then all for stopping cooling water pumps 30 are run, when controller 10 collects cold
After the holding state of 50 disappears, then original for startup cooling water pump 30 is run, and running frequency according to
ToutWith ToutsetMagnitude relationship by converter 40 be adjusted control.
As further improvement of the utility model, start and the shutdown command of cooling tower 20 are followed automatically
Cooling water pump 30 switching on and shutting down order.
The temperature flowing out cooling tower is only detected by above scheme, passes through ToutWith ToutsetMagnitude relationship
Control converter to enter cooling water pump to be adjusted, as further improvement of the utility model, cooling water
Pump discharge is provided with cooling water pump outlet temperature sensor (not shown), the water flowed out from it for detection
Temperature.Being additionally provided with temperature difference circuit (not shown) outside controller 10, cooling water pump 30 outlet temperature senses
The water temperature of the water temperature of device and cooling tower outlet temperature sensor 61 is delivered to described thermoelectric rood and goes out the temperature difference
Value signal, the incoming converter of temperature approach signal 40 controls the rotating speed of cooling water pump.When temperature approach is relatively big, say
The bright coolant-temperature gage from cooling water pump outflow is relatively low, and controller 10 controls converter 40 makes turning of cooling water pump
Prompt drop is low, with this, would not affect cold because the temperature of water is too low from cooling water pump flowing water out
50 follow-up cannot start, so can saves energy.
As further improvement of the utility model, cooling tower 20 branched pipe of intaking can be in series with cooling tower
20, on described branched pipe, the outlet of the cooling tower 20 of series connection also is provided with cooling tower outlet temperature sensor.When
Above the water of outflow cooling tower 20 is not reaching to the temperature effect preset, can be through the cooling tower connected below
20 cool down further, especially when line voltage is relatively low, can by two even three cooling towers 20 with
Reach effect.Cooling water pump 30 in parallel after cooling tower 20 outlet header branch, cooling water in parallel after branch
Pump 30 is connected to cooling water pump 30 outlet header by pipeline again, and the branched pipe series connection of cooling water pump 30 is cold
But water pump 30.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-mentioned enforcement
Example is exemplary, it is impossible to be interpreted as limitation of the present invention, and those of ordinary skill in the art is not taking off
Above-described embodiment can be become within the scope of the invention in the case of the principle and objective of the present invention
Change, revise, replace and modification.
Claims (9)
1. a central air conditioner cooling system energy-saving control apparatus, including: cooling tower, cooling water pump, control
Device processed, it is characterised in that cooling water pump is provided with converter, import and the outlet of cooling tower are pacified respectively
Equipped with cooling tower inlet temperature sensor and cooling tower outlet temperature sensor, controller connects frequency conversion respectively
Device, cooling tower inlet temperature sensor and cooling tower outlet temperature sensor, controller is according to cooling tower
The temperature value signal that inlet temperature sensor, cooling tower outlet temperature sensor are measured presets temperature with controller
Angle value signal compares to control the running status of cooling tower, cooling water pump.
2. central air conditioner cooling system energy-saving control apparatus as claimed in claim 1, it is characterised in that
The outlet of described cooling water pump is provided with cooling water pump outlet temperature sensor, the water flowed out from it for detection
Temperature.
3. central air conditioner cooling system energy-saving control apparatus as claimed in claim 2, it is characterised in that
Being additionally provided with temperature difference circuit outside controller, the water temperature of cooling water pump outlet temperature sensor exports with cooling tower
The water temperature of temperature sensor is delivered to described thermoelectric rood and goes out temperature approach signal, and described temperature approach signal passes
Enter the rotating speed of Frequency Converter Control cooling water pump.
4. central air conditioner cooling system energy-saving control apparatus as claimed in claim 1, it is characterised in that
The start of described cooling tower and shutdown command follow cooling water pump switching on and shutting down order automatically.
5. central air conditioner cooling system energy-saving control apparatus as claimed in claim 1, it is characterised in that
Described central air conditioner cooling system energy-saving control apparatus is provided with at least one cooling tower or at least one cooling
Water pump, described cooling tower water inlet manifold is in parallel with cooling tower water inlet branched pipe, and cooling tower inlet temperature senses
Device is installed on cooling tower water inlet manifold and measures into water temperature signal with real-time.
6. central air conditioner cooling system energy-saving control apparatus as claimed in claim 5, it is characterised in that
Flowing into cooling tower outlet header after the cooling cooled tower of water, cooling tower outlet temperature sensor is installed on cooling
Tower outlet header is to measure water temperature signal in real time.
7. central air conditioner cooling system energy-saving control apparatus as claimed in claim 1, it is characterised in that
Described running status is that cooling tower runs number of units, the start of cooling water pump, shutdown and rotating speed.
8. central air conditioner cooling system energy-saving control apparatus as claimed in claim 5, it is characterised in that
Cooling tower water inlet branched pipe is in series with cooling tower, and the cooling tower outlet of series connection on described branched pipe also is provided with cold
But tower outlet temperature sensor.
9. central air conditioner cooling system energy-saving control apparatus as claimed in claim 6, it is characterised in that
After cooling tower outlet header branch, cooling water pump in parallel is connected to cooling water pump outlet header by pipeline again,
The branched pipe series connection cooling water pump of cooling water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500200.8U CN205783571U (en) | 2016-05-26 | 2016-05-26 | A kind of central air conditioner cooling system energy-saving control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500200.8U CN205783571U (en) | 2016-05-26 | 2016-05-26 | A kind of central air conditioner cooling system energy-saving control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205783571U true CN205783571U (en) | 2016-12-07 |
Family
ID=57407827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620500200.8U Active CN205783571U (en) | 2016-05-26 | 2016-05-26 | A kind of central air conditioner cooling system energy-saving control apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871364A (en) * | 2017-03-09 | 2017-06-20 | 珠海格力电器股份有限公司 | A kind of control method of central air conditioner system cooling tower leaving water temperature |
| CN107514755A (en) * | 2017-08-30 | 2017-12-26 | 珠海格力电器股份有限公司 | The water pump start-up and shut-down control method and air-conditioning system of air-conditioning system |
| CN107525430A (en) * | 2017-09-19 | 2017-12-29 | 上海大众祥源动力供应有限公司 | A kind of cooling tower frequency conversion fan control system and method |
| CN107741164A (en) * | 2017-11-29 | 2018-02-27 | 郑州荣奇热电能源有限公司 | Firepower electrical plant cooling water circulation medicine system |
-
2016
- 2016-05-26 CN CN201620500200.8U patent/CN205783571U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871364A (en) * | 2017-03-09 | 2017-06-20 | 珠海格力电器股份有限公司 | A kind of control method of central air conditioner system cooling tower leaving water temperature |
| CN106871364B (en) * | 2017-03-09 | 2020-12-04 | 珠海格力电器股份有限公司 | Method for controlling outlet water temperature of cooling tower of central air-conditioning system |
| CN107514755A (en) * | 2017-08-30 | 2017-12-26 | 珠海格力电器股份有限公司 | The water pump start-up and shut-down control method and air-conditioning system of air-conditioning system |
| CN107525430A (en) * | 2017-09-19 | 2017-12-29 | 上海大众祥源动力供应有限公司 | A kind of cooling tower frequency conversion fan control system and method |
| CN107525430B (en) * | 2017-09-19 | 2024-05-03 | 上海大众祥源动力供应有限公司 | Cooling tower variable frequency fan control system and method |
| CN107741164A (en) * | 2017-11-29 | 2018-02-27 | 郑州荣奇热电能源有限公司 | Firepower electrical plant cooling water circulation medicine system |
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