CN203964267U - Central air-conditioning Auto-matching load energy conserving system - Google Patents
Central air-conditioning Auto-matching load energy conserving system Download PDFInfo
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- CN203964267U CN203964267U CN201420301342.2U CN201420301342U CN203964267U CN 203964267 U CN203964267 U CN 203964267U CN 201420301342 U CN201420301342 U CN 201420301342U CN 203964267 U CN203964267 U CN 203964267U
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Abstract
A kind of central air-conditioning Auto-matching load energy conserving system, comprise cold water main unit, cooling tower, cooling-water temperature sensor, room conditioning end-equipment, the electronic proportional integral valve of chilled water, cooling tower water inlet motor-driven valve, intelligent control device, air conditioning control device, chilled water temperature sensor, chilled water motor-driven valve, chilled water flow quantity sensor and cooling water motor-driven valve, cooling water motor-driven valve, cooling-water temperature sensor is located on Cooling Water circuit, chilled water temperature sensor, chilled water motor-driven valve and flow sensor are located at in freezing water line, integral valve is located on the reflux line that chilled water is back to main frame, main frame has the host computer control case that is electrically connected on intelligent control device and air conditioning control device, each motor-driven valve and flow sensor are electrically connected to intelligent control device, the temperature sensor of cooling water and chilled water is electrically connected to host computer control case, cooling tower is electrically connected to air conditioning control device.This system energy consumption is little, automatic control degree is high.
Description
Technical field
The utility model relates to air-conditioning technical field, is specifically related to a kind of central air-conditioning Auto-matching load energy conserving system.
Background technology
In daily life and production operation, all can use aircondition, especially some workshop, for specific technological requirement, has strict control requirement for indoor temperature, humidity and pressure etc., conventionally adopts central air conditioner system.Yet well-known, these central air conditioner system power consumptions are quite large, are that electric power mainly one of is born.Indoor higher for precision prescribed, the energy resource consumption of this air-conditioning system is also larger.Especially some toilets are for constant temperature, constant humidity, constant voltage, and cleanliness factor requires very highly, and it is large that many-sided parameter request causes the energy resource consumption of air-conditioning system and equipment of itself and auxiliary device to form more doting on, and cost is sharply soaring.
General refrigeration adopts the modes such as air-cooled and water-cooled, air-cooled applicable to family's air-conditioning system, directly sends cold wind, and to reduce indoor temperature, and water-cooled is suitable for the place of large-scale refrigeration demand.At present, there are a lot of central air conditioner systems to adopt Based Intelligent Control, parameters preset as requested, then carry out Based Intelligent Control by intelligence control system.Yet existing intelligent air-conditioning system is single or simply controls, can not be effectively to many kinds of parameters, more complicated feedback and water circulation system are carried out Based Intelligent Control, these Based Intelligent Control and theoretic Based Intelligent Control level differ greatly, air-conditioning is in actual adjustment process, no matter be when heating up or lowering the temperature with cold wind with heater, for accurately controlling temperature at regulation point, in this process, inevitable temperature has fluctuation, heater or evaporimeter etc. are continued in running order, to consume excessive power like this, be difficult to reach the strict demand of current energy-saving and emission-reduction.
Utility model content
In view of this, provide a kind of high central air-conditioning Auto-matching load energy conserving system of energy resource consumption, automatic control degree that reduces.
A central air-conditioning Auto-matching load energy conserving system, it comprises cold water main unit, circulate and be connected and supply with the cooling tower of main frame cooling water with main frame, cooling-water temperature sensor, room conditioning end-equipment, the electronic proportional integral valve of chilled water, cooling tower water inlet motor-driven valve, intelligent control device, air conditioning control device, chilled water temperature sensor, chilled water motor-driven valve, chilled water flow quantity sensor and adjusting cooling water enter the cooling water motor-driven valve of cooling main frame, described cooling water motor-driven valve, cooling-water temperature sensor is located on the Cooling Water circuit of described cooling tower feeding cold water main frame, and described cooling tower water inlet motor-driven valve is located at described cold water main unit to the water return lines of cooling tower, described chilled water temperature sensor, chilled water motor-driven valve and chilled water flow quantity sensor are located in the freezing water line of confession in described cold water main unit supply chamber, the electronic proportional integral valve of described chilled water is located on the reflux line that chilled water is back to cold water main unit, described cold water main unit has the host computer control case that is electrically connected on intelligent control device and air conditioning control device, described cooling tower water inlet motor-driven valve, cooling water motor-driven valve, chilled water motor-driven valve, chilled water flow quantity sensor, the electronic proportional integral valve of chilled water is electrically connected to intelligent control device, and described chilled water temperature sensor and cooling-water temperature sensor are electrically connected to host computer control case, and described cooling tower is electrically connected to air conditioning control device.
Further, described intelligent control device comprises PLC controller and touch control display apparatus, and described cooling tower water inlet motor-driven valve, cooling water motor-driven valve, chilled water motor-driven valve, chilled water flow quantity sensor, the electronic proportional integral valve of chilled water, host computer control case are electrically connected to PLC controller.
Further, described room conditioning end-equipment comprises wind cabinet and/or fan coil, between each wind cabinet or fan coil and cold water main unit, by closed circuit, be connected, the backflow route that is back to cooling main frame of each closed circuit is provided with an electronic proportional integral valve of chilled water.
Further, described closed circuit is provided with at least one chilled water pump being back on the backflow route of cooling main frame, and each chilled water pump is electrically connected to air conditioning control device.
Further, the Cooling Water circuit of described cooling tower feeding cold water main frame is provided with at least one cooling water pump, and each cooling water pump is electrically connected to air conditioning control device.
Further, in described air conditioning control device, include a plurality of frequency converters, be electrically connected to each chilled water pump, each cooling water pump and host computer control case respectively.
Further, described closed circuit is provided with an expansion tank being back on the backflow route of cooling main frame, and described expansion tank is located on the reflux line that enters chilled water pump.
Further, described cold water main unit also comprises condenser, evaporimeter, choke valve and compressor.
Further, described PLC controller is electrically connected to air conditioning control device, for controlling each frequency converter.
Further, described touch control display apparatus is for arranging man-machine interactive system and the monitoring system of room air parameter, and described touch control display apparatus also has touching display screen.
Compare with traditional air-conditioning system, in above-mentioned central air-conditioning Auto-matching load energy conserving system, cooling tower is electrically connected to host computer control case, and the start and stop of cooling tower have been carried out to automatic control.Chilled water and cooling-water temperature sensor by temperature feedback to air conditioning control device, reflection be cold water main unit Inlet and outlet water temperature, cooling tower is according to the variation automatic start-stop of the requirement of cold water main unit and environment.Further, by air conditioning control device, chilled water pump has been carried out to VFC, can by frequency converter, automatically regulate the flow of chilled water pump according to the aperture of the electronic proportional integral valve of chilled water on end-equipment water outlet route, save a large amount of electric energy, reduce energy resource consumption.In addition, native system has all been installed motor-driven valve at chilled water and the cooling water pipeline of freezing main frame, can close freezing main frame and close corresponding valve according to the variation of load, not only guarantees refrigeration but also save the energy.Therefore, native system can highly automated main control system, the start and stop of water pump, water tower, realizes Auto-matching load.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional central air-conditioning Auto-matching load energy conserving system.
The specific embodiment
Below with reference to the drawings and the specific embodiments, the utility model is elaborated.
Refer to Fig. 1, the central air-conditioning Auto-matching load energy conserving system 100 of the utility model embodiment is shown, it comprises cold water main unit 11, circulate and be connected and supply with the cooling tower 12 of main frame 11 cooling waters with main frame 11, cooling-water temperature sensor 13, room conditioning end-equipment 15, the electronic proportional integral valve 21 of chilled water, cooling tower water inlet motor-driven valve 17, intelligent control device, air conditioning control device 18, chilled water temperature sensor 22, chilled water motor-driven valve 23, chilled water flow quantity sensor 24 and adjusting cooling water enter the cooling water motor-driven valve 14 of cooling main frame, described cooling water motor-driven valve 14, cooling-water temperature sensor 13 is located on the Cooling Water circuit of described cooling tower 12 feeding cold water main frames 11, and described cooling tower water inlet motor-driven valve 17 is located at described cold water main unit 11 to the water return lines of cooling tower 12, described chilled water temperature sensor 22, chilled water motor-driven valve 23 and chilled water flow quantity sensor 24 are located in the freezing water line of confession in described cold water main unit 11 supply chambers, the electronic proportional integral valve 21 of described chilled water is located on the reflux line that chilled water is back to cold water main unit 11, described cold water main unit 11 has the host computer control case 112 that is electrically connected on intelligent control device and air conditioning control device 18, cooling tower water inlet motor-driven valve 17, cooling water motor-driven valve 14, chilled water motor-driven valve 23, chilled water flow quantity sensor 24, the electronic proportional integral valve 21 of chilled water is electrically connected to intelligent control device, and described chilled water temperature sensor 22 and cooling-water temperature sensor 13 are electrically connected to host computer control case 112, and cooling tower 12 is electrically connected to air conditioning control device 18.
Particularly, intelligent control device comprises PLC (programmable logic controller (PLC), Programmable Logic Controller, PLC) controller 191 and touch control display apparatus 192.Described touch control display apparatus 192 has for man-machine interactive system and the monitoring system of room air parameter are set, and described touch control display apparatus 192 also has touching display screen, facilitates manual operation.Described cooling tower water inlet motor-driven valve 17, cooling water motor-driven valve 14, chilled water motor-driven valve 23, chilled water flow quantity sensor 24, the electronic proportional integral valve 21 of chilled water, host computer control case 112 is electrically connected to PLC controller 191, by PLC controller 191, control or regulate cooling tower water inlet motor-driven valve 17, cooling water motor-driven valve 14, chilled water motor-driven valve 23, the unlatching of the electronic proportional integral valve 21 of chilled water, close, chilled water flow quantity sensor 24 feeds back to PLC controller 191 by the chilled-water flow sensing, temperature in conjunction with each temperature sensor senses regulates each valve again, control flow.
Room conditioning end-equipment 15 comprises wind cabinet and/or fan coil, between each wind cabinet or fan coil and cold water main unit 11, by closed circuit, be connected, the backflow route that is back to cooling main frame 11 of each closed circuit is provided with an electronic proportional integral valve 21 of chilled water.By cooling main frame 11, supply with chilled water to room conditioning end-equipment 15, room conditioning end-equipment 15 is given indoor refrigeration by chilled water, and then chilled water is back to cooling main frame 11, forms a closed circuit.Similarly, between cooling main frame 11 and cooling tower 12, by closed circuit round-trip transmission cooling water, be appreciated that cooling main frame 11 and cooling tower 12 and room conditioning end-equipment 15 form a larger global cycle circuit system.In figure, show a plurality of end-equipments, for example, in different chamber or a plurality of end-equipments 15 of indoor location, in figure, show K-1, K-2 to K-n, there is n, the integer of n>1, each end-equipment 15 is provided with an electronic proportional integral valve 21 of chilled water being back on the backflow route of cooling main frame 11.
Further, closed circuit is provided with at least one chilled water pump 123 being back on the backflow route of cooling main frame 11, and each chilled water pump 123 is electrically connected to air conditioning control device 18.The Cooling Water circuit of described cooling tower 12 feeding cold water main frames 11 is provided with at least one cooling water pump 121, and each cooling water pump 121 is electrically connected to air conditioning control device 18.In air conditioning control device 18, include a plurality of frequency converters, be electrically connected to each chilled water pump 123, each cooling water pump 121 and host computer control case 112 respectively, to control respectively the rotating speed of each water pump, control water pump output, and the operation of main control system control cabinet 112.Described PLC controller 191 is electrically connected to air conditioning control device 18, for controlling each frequency converter.Because chilled water temperature sensor 22 and cooling-water temperature sensor 13 are electrically connected to host computer control case 112 respectively, the data-signal that chilled water temperature sensor 22 and cooling-water temperature sensor 13 sense is transferred to PLC controller 191 the most at last, by PLC controller 191 according to the flow signal of temperature signal and chilled water flow quantity sensor 24, control frequency converter, with the operation of indirect main control system control cabinet 112 and the keying of each valve.
Cooling tower 12 is electrically connected to host computer control case 112, and the start and stop of cooling tower 12 have been carried out to automatic control.Chilled water temperature sensor 22 and cooling-water temperature sensor 13 by temperature feedback to air conditioning control device 18, reflection be cold water main unit 11 Inlet and outlet water temperature, cooling tower 12 is according to the variation automatic start-stop of the requirement of cold water main unit 11 and environment.Particularly, after cold water main unit 11 is closed a part, cooling water inflow demand reduces, and cooling tower 12 and cooling water pump 121 stop corresponding number of units automatically.When outdoor temperature is too low, cooling tower 12 can stop power saving automatically, but still can guarantee the coolant water temperature demand of main frame 11.Further, by 18 pairs of chilled water pumps of air conditioning control device 123, carried out VFC, can by the frequency converter in air conditioning control device 18, automatically regulate the flow of chilled water pump 123 according to the aperture of the electronic proportional integral valve 21 of chilled water on end-equipment 15 water outlet routes, save a large amount of electric energy, reduce energy resource consumption.Also can by the frequency converter in air conditioning control device 18, automatically regulate the flow of cooling water pump 121 according to information such as temperature sensors in addition,
Closed circuit is provided with an expansion tank 26 being back on the backflow route of cooling main frame 11, and described expansion tank 26 is located on the reflux line that enters chilled water pump 123, for supplementing chilled water.In addition, cold water main unit 11 also comprises condenser, evaporimeter, choke valve and compressor etc.
Above-mentioned central air-conditioning Auto-matching load energy conserving system 100, cooling tower 12 is electrically connected to host computer control case 18, and the start and stop of cooling tower 12 have been carried out to automatic control.Chilled water and cooling-water temperature sensor 22,13 by temperature feedback to air conditioning control device 18, reflection be cold water main unit 11 Inlet and outlet water temperature, cooling tower 12 is according to the variation automatic start-stop of the requirement of cold water main unit 11 and environment.Further, by air conditioning control device, chilled water pump has been carried out to VFC, can by frequency converter, automatically regulate the flow of chilled water pump 123 according to the aperture of the electronic proportional integral valve 21 of chilled water on end-equipment water outlet route, save a large amount of electric energy, reduce energy resource consumption.In addition, native system 100 has all been installed motor-driven valve at chilled water and the cooling water pipeline of freezing main frame 11, can close freezing main frame and close corresponding valve according to the variation of load, not only guarantees refrigeration but also save the energy.Therefore, native system can highly automated main control system, the start and stop of water pump, water tower, realizes Auto-matching load.
It should be noted that; the utility model is not limited to above-mentioned embodiment; according to creative spirit of the present utility model; those skilled in the art can also make other variations; the variation that these are done according to creative spirit of the present utility model, within all should being included in the utility model scope required for protection.
Claims (10)
1. a central air-conditioning Auto-matching load energy conserving system, is characterized in that, comprises cold water main unit, circulate and be connected and supply with the cooling tower of main frame cooling water with main frame, cooling-water temperature sensor, room conditioning end-equipment, the electronic proportional integral valve of chilled water, cooling tower water inlet motor-driven valve, intelligent control device, air conditioning control device, chilled water temperature sensor, chilled water motor-driven valve, chilled water flow quantity sensor and adjusting cooling water enter the cooling water motor-driven valve of cooling main frame, described cooling water motor-driven valve, cooling-water temperature sensor is located on the Cooling Water circuit of described cooling tower feeding cold water main frame, and described cooling tower water inlet motor-driven valve is located at described cold water main unit to the water return lines of cooling tower, described chilled water temperature sensor, chilled water motor-driven valve and chilled water flow quantity sensor are located in the freezing water line of confession in described cold water main unit supply chamber, the electronic proportional integral valve of described chilled water is located on the reflux line that chilled water is back to cold water main unit, described cold water main unit has the host computer control case that is electrically connected on intelligent control device and air conditioning control device, described cooling tower water inlet motor-driven valve, cooling water motor-driven valve, chilled water motor-driven valve, chilled water flow quantity sensor, the electronic proportional integral valve of chilled water is electrically connected to intelligent control device, and described chilled water temperature sensor and cooling-water temperature sensor are electrically connected to host computer control case, and described cooling tower is electrically connected to air conditioning control device.
2. central air-conditioning Auto-matching as claimed in claim 1 load energy conserving system, it is characterized in that, described intelligent control device comprises PLC controller and touch control display apparatus, and described cooling tower water inlet motor-driven valve, cooling water motor-driven valve, chilled water motor-driven valve, chilled water flow quantity sensor, the electronic proportional integral valve of chilled water, host computer control case are electrically connected to PLC controller.
3. central air-conditioning Auto-matching as claimed in claim 2 load energy conserving system, it is characterized in that, described room conditioning end-equipment comprises wind cabinet and/or fan coil, between each wind cabinet or fan coil and cold water main unit, by closed circuit, be connected, the backflow route that is back to cooling main frame of each closed circuit is provided with an electronic proportional integral valve of chilled water.
4. central air-conditioning Auto-matching as claimed in claim 3 load energy conserving system, is characterized in that, described closed circuit is provided with at least one chilled water pump being back on the backflow route of cooling main frame, and each chilled water pump is electrically connected to air conditioning control device.
5. central air-conditioning Auto-matching load energy conserving system as claimed in claim 4, is characterized in that, the Cooling Water circuit of described cooling tower feeding cold water main frame is provided with at least one cooling water pump, and each cooling water pump is electrically connected to air conditioning control device.
6. central air-conditioning Auto-matching load energy conserving system as claimed in claim 5, is characterized in that, includes a plurality of frequency converters in described air conditioning control device, is electrically connected to respectively with each chilled water pump, each cooling water pump and host computer control case.
7. central air-conditioning Auto-matching as claimed in claim 4 load energy conserving system, is characterized in that, described closed circuit is provided with an expansion tank being back on the backflow route of cooling main frame, and described expansion tank is located on the reflux line that enters chilled water pump.
8. central air-conditioning Auto-matching load energy conserving system as claimed in claim 1, is characterized in that, described cold water main unit also comprises condenser, evaporimeter, choke valve and compressor.
9. central air-conditioning Auto-matching load energy conserving system as claimed in claim 6, is characterized in that, described PLC controller is electrically connected to air conditioning control device, for controlling each frequency converter.
10. central air-conditioning Auto-matching load energy conserving system as claimed in claim 2, is characterized in that, described touch control display apparatus is for arranging man-machine interactive system and the monitoring system of room air parameter, and described touch control display apparatus also has touching display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301342.2U CN203964267U (en) | 2014-06-06 | 2014-06-06 | Central air-conditioning Auto-matching load energy conserving system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420301342.2U CN203964267U (en) | 2014-06-06 | 2014-06-06 | Central air-conditioning Auto-matching load energy conserving system |
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| CN203964267U true CN203964267U (en) | 2014-11-26 |
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| CN201420301342.2U Expired - Fee Related CN203964267U (en) | 2014-06-06 | 2014-06-06 | Central air-conditioning Auto-matching load energy conserving system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406276A (en) * | 2014-12-12 | 2015-03-11 | 常熟市兴华机电设备安装工程有限责任公司 | Intelligent control system of central air conditioner |
| CN106568281A (en) * | 2016-08-31 | 2017-04-19 | 樊永信 | Refrigerating system utilizing outdoor air energy |
| CN106931544A (en) * | 2017-03-24 | 2017-07-07 | 复旦大学 | Energy-saving central air conditioner automatic control system |
-
2014
- 2014-06-06 CN CN201420301342.2U patent/CN203964267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406276A (en) * | 2014-12-12 | 2015-03-11 | 常熟市兴华机电设备安装工程有限责任公司 | Intelligent control system of central air conditioner |
| CN106568281A (en) * | 2016-08-31 | 2017-04-19 | 樊永信 | Refrigerating system utilizing outdoor air energy |
| CN106931544A (en) * | 2017-03-24 | 2017-07-07 | 复旦大学 | Energy-saving central air conditioner automatic control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20160606 |