CN202083001U - Cooling tower energy-saving control device of central air-conditioning centralized control system - Google Patents
Cooling tower energy-saving control device of central air-conditioning centralized control system Download PDFInfo
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- CN202083001U CN202083001U CN2011200776885U CN201120077688U CN202083001U CN 202083001 U CN202083001 U CN 202083001U CN 2011200776885 U CN2011200776885 U CN 2011200776885U CN 201120077688 U CN201120077688 U CN 201120077688U CN 202083001 U CN202083001 U CN 202083001U
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- cooling tower
- central air
- temperature sensor
- conditioning
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Abstract
The utility model discloses a cooling tower energy-saving control device of a central air-conditioning centralized control system, which comprises a temperature sensor, a tail end controller, a central processor and a sliding valve. The input terminal of the central processor is connected and installed on the temperature sensor in a central air-conditioning circulating water pipe and the tail end controller for controlling a tail end; the input and output terminals of the central processor are connected and installed on the sliding valve on a central air-conditioning main frame; and the output terminal of the central processor is connected with the switch of a cooling tower. The device mainly realizes that the cooling tower adjusts the operating condition according to the practical air-conditioning use condition, and is energy-saving and environmental friendly.
Description
Technical field
The utility model relates to the central air-conditioning technical field, and is special relevant with central air-conditioning centralized control system cooling tower energy-saving control device.
Background technology
Cooling tower in the central air-conditioning is a heat abstractor, and the heat of refrigeration host computer condenser is taken away.When cold-producing medium comes out in compressor, be the gas of HTHP, and enter the gas-liquid mixture that becomes high normal pressure and temperature behind the condenser.The heat of this part is to have water in the condenser to take cooling tower to lower the temperature.
The water system central air-conditioning is installed in existing heavy construction, generally all is equipped with a plurality of cooling towers and comes to be the refrigeration host computer heat radiation.During work, pump operating cycle, the cold water that the drive central air conditioner main machine produces is delivered to each end and is carried out heat exchange, water after terminal heat exchange is withdrawn in the central air conditioner main machine again, simultaneously, the cooling water that carries the used heat that main frame when refrigeration produce is delivered to Ta Nei by cooling water pump and air carries out heat exchange, make used heat be transferred to air and spill in the atmosphere.The cooling water that carries out after the heat exchange with atmosphere is back to the heat radiation that circulates in the central air conditioner main machine again.
When in process of refrigerastion, cooling tower is in the state of operating at full capacity always, can't flexible modulation.In most design, cold water main unit cooling tower of can arranging in pairs or groups.Because in, big system cold water main unit platform number is on the high side, make that cooling water control tower number is also many, in actual motion, when a main frame operation, many cooling towers can occur moves simultaneously, not manageability and maintenance, and can't adjust cold tower in real time and open quantity along with central air-conditioning terminal load load and outside air temperature condition variation.Often occur when terminal demand diminishes (the main frame refrigerating capacity diminishes), and still full load condition operation of cooling tower causes most of energy waste.
Given this, the inventor designs a kind of central air-conditioning centralized control system cooling tower energy-saving control device, and this case produces thus.
The utility model content
The utility model main purpose is to provide a kind of air-condition cooling tower energy-saving control device, and the realization cooling tower is regulated duty, energy-conserving and environment-protective according to actual air-conditioning operating position.
Central air-conditioning centralized control system cooling tower energy-saving control device comprises temperature sensor, terminal controller, central processing unit, guiding valve; The input of central processing unit is mounted on temperature sensor and the terminal terminal controller of control in the center air-condition circle water pipe, the input/output terminal of central processing unit is mounted on the guiding valve on the central air conditioner main machine, and the output of central processing unit connects the switch of cooling tower.
Described temperature sensor is installed in the inflow temperature sensor of water inlet and the leaving water temperature sensor of delivery port.
Described terminal controller connects terminal control port.
The utility model in use, temperature sensor detects the temperature in the center air-condition circle water pipe, and detect terminal start signal, according to above-mentioned signal, central processing unit is regulated the guiding valve opening on the main frame, thereby makes the central air conditioner main machine energy conservation, the guiding valve working signal is input in the central processing unit more then, by the workbench number of central processing unit according to guiding valve signal controlling cooling tower, when guiding valve was in high-power operation, cooling tower was all opened work; When guiding valve was in the small-power operation, cooling tower partially opened work.
The utility model can be according to the actual end operating position, regulate the duty of main frame and cooling tower, avoid main frame and cooling tower to be in work under the full load condition so always, reduce the central air-conditioning energy consumption greatly, come into operation in general hospital and market, approximately can save the electricity charge about 50% in 1 year.
Description of drawings
Fig. 1 installs and uses schematic diagram for the utility model preferred embodiment;
Fig. 2 is the high-level schematic functional block diagram of the utility model preferred embodiment.
The specific embodiment
In conjunction with the accompanying drawings, preferred embodiment is described in further details to the utility model.
As shown in Figure 1 and Figure 2, the utility model preferred embodiment mainly comprises inflow temperature sensor 1, return water temperature sensor 2, terminal controller 3, central processing unit 4, guiding valve 5.
The centralized Control platform that central processing unit 4 can adopt central air-conditioning itself to possess adopts computer as control appliance, possesses signal data transmitting-receiving and processing capacity, and this is an equipment full-fledged in the electronic technology field, does not do detailed expansion here and describes.
The operation principle of central air-conditioning is in conjunction with Fig. 1, and the cold water in the central air conditioner main machine 6 by output channel 9 outputs, is delivered to each end 7 under the drive of circulating pump 12.Terminal then 7 carry out heat exchange after, by input channel 10 backwater in central air conditioner main machine 6.Backwater in the central air conditioner main machine 6 is pumped to heat radiation cooling in two cooling towers 8.
The utility model is exactly on the basis of existing central air-conditioning energy-saving control device to be set.In output channel 9 and input channel 10, be installed into water temperature sensor 1 and return water temperature sensor 2 respectively, be used to detect central air conditioner main machine 6 water outlets and return water temperature,, can understand terminal 7 operating position by both temperature difference.On 7 the control end terminal controller 3 is installed endways simultaneously, terminal controller 3 also is an electronic control device, has On/Off central air-conditioning button, temperature adjustment buttons, is connected by data wire with central processing unit 4 simultaneously and keeps data communication.Central processing unit 4 is set the signal that reads each terminal controller 3 at regular intervals, accurately collects terminal 7 start signal.
Central processing unit 4 is according to the start signal of inflow temperature signal, return water temperature signal and end 7, and the load of 6 confessions of accurate Calculation central air conditioner main machine is regulated the opening of guiding valve 5 on the central air conditioner main machine 6 with this.Guiding valve 5 is that a kind of spool that utilizes slides on sealing surface, changes fluid inlet and outlet channel position on the central air conditioner main machine 6, controls the fluid size with this, thereby regulates the operate power on the central air conditioner main machine 6.The duty of guiding valve 5 produces a guiding valve signal, is transported in the central processing unit 4.Central processing unit 4 final switch valves according to guiding valve signal controlling cooling tower 8.Open fully when guiding valve 5, show that then central air conditioner main machine 6 works under full load condition, then central processing unit 4 is all opened whole cooling towers 8.Open not above half when guiding valve 5, then 4 of central processing units are opened 8 work of a cooling tower, so just can satisfy current terminal 7 demand, save resource.Show according to actual measurement data, use the utility model to control in a medium scale hospital, approximately can save 50% the electricity charge in 1 year, energy-saving effect is remarkable.
The foregoing description only is used to the inventive concept of the present utility model of explaining, but not to the qualification of the utility model rights protection, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into protection domain of the present utility model.
Claims (3)
1. central air-conditioning centralized control system cooling tower energy-saving control device is characterized in that: comprise temperature sensor, terminal controller, central processing unit, guiding valve; The input of central processing unit is mounted on temperature sensor and the terminal terminal controller of control in the center air-condition circle water pipe, the input/output terminal of central processing unit is mounted on the guiding valve on the central air conditioner main machine, and the output of central processing unit connects the switch of a plurality of cooling towers.
2. central air-conditioning centralized control system cooling tower energy-saving control device as claimed in claim 1 is characterized in that: described temperature sensor is installed in the inflow temperature sensor of water inlet and the leaving water temperature sensor of delivery port.
3. central air-conditioning centralized control system cooling tower energy-saving control device as claimed in claim 1 or 2 is characterized in that: described terminal controller connects terminal control port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200776885U CN202083001U (en) | 2011-03-23 | 2011-03-23 | Cooling tower energy-saving control device of central air-conditioning centralized control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200776885U CN202083001U (en) | 2011-03-23 | 2011-03-23 | Cooling tower energy-saving control device of central air-conditioning centralized control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083001U true CN202083001U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200776885U Expired - Fee Related CN202083001U (en) | 2011-03-23 | 2011-03-23 | Cooling tower energy-saving control device of central air-conditioning centralized control system |
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| CN (1) | CN202083001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531710A (en) * | 2021-07-23 | 2021-10-22 | 四川华派净化工程有限公司 | Cold and hot central air conditioning pump circulation system |
-
2011
- 2011-03-23 CN CN2011200776885U patent/CN202083001U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531710A (en) * | 2021-07-23 | 2021-10-22 | 四川华派净化工程有限公司 | Cold and hot central air conditioning pump circulation system |
| CN113531710B (en) * | 2021-07-23 | 2023-02-03 | 四川华派净化工程有限公司 | Cold and hot central air conditioning pump circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20170323 |
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| CF01 | Termination of patent right due to non-payment of annual fee |