CN105135637A - Central air-conditioning energy-saving control system - Google Patents
Central air-conditioning energy-saving control system Download PDFInfo
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- CN105135637A CN105135637A CN201510593251.XA CN201510593251A CN105135637A CN 105135637 A CN105135637 A CN 105135637A CN 201510593251 A CN201510593251 A CN 201510593251A CN 105135637 A CN105135637 A CN 105135637A
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- 238000004378 air conditioning Methods 0.000 title abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 238000005057 refrigeration Methods 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000007710 freezing Methods 0.000 claims abstract description 6
- 230000008014 freezing Effects 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000002826 coolant Substances 0.000 claims description 33
- 230000001276 controlling effect Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000007405 data analysis Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000498 cooling water Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a central air-conditioning energy-saving control system which is designed for solving the technical problems that existing similar products are not good in energy efficiency management and energy-saving effect, not scientific in intelligent control and data acquisition and not good in cooling mode and cooling effect of water-cooling draught fans. The energy-saving control system comprises a refrigeration station machine room, a computer and room terminals in pipeline connection with the refrigeration station machine room and the computer, wherein the refrigeration station machine room comprises refrigeration main machines, freezing pumps, cooling pumps, a water collection device, a water knockout vessel, hot water pumps and a frequency conversion control cabinet and a signal control cabinet of the system; the system is characterized in that the computer conducts analysis on data transmitted by flowmeters, differential pressure transducers and temperature sensors, dynamic throttling instruments of the freezing pumps, dynamic throttling instruments of the cooling pumps and dynamic throttling instruments of the hot water pumps and dynamic controllers of the refrigeration main machines are controlled through a frequency converter in the frequency conversion control cabinet, and water outlet of the water knockout vessel is controlled through electric regulating valves. According to the structure of the central air-conditioning energy-saving control system, original cooling towers may be replaced with water curtain frames, and lower water tanks of the water curtain frames are connected with water inlet pipes of the cooling pumps through drainage valves.
Description
Technical field
The present invention relates to controlling system of central air conditioner, is a kind of controlling system of central air conditioner.
Background technology
Central air conditioner system is generally made up of cold and heat source system and air handling system, and its principle adopting vaporizing liquid to freeze provides institute's chilling requirement, in order to offset the refrigeration duty of indoor environment for air handling system; Heating provides the heat of offsetting indoor environment thermic load for air handling system.But the central air conditioner system that the places such as some megastore, hotel, hospital adopt is generally computer-room air conditioning system, wherein adopt water-cooled central air-conditioning comparatively extensive, its Water-cooling type air conditioner is provided with the cooling tower of band blower fan cooling cascade in air inlet, and rely on water that the heat in room is taken away, or give room the heat in the external world, containing certain humidity in air, cold wind effect is freezed and is taken a breath comparatively comfortable.Its operation principle is: first make cold water by air-conditioner set, then Air flow, more cooled air is sent into indoor; Meanwhile, air-conditioner set also can shift out heat delivers to cooling tower by cooling water producing cold water, cool, and cooling is over to return to take away heat again, comprising: the circulation of cooling water circulation, chilled water, refrigerant circulation.Wherein, chilled water and cooling water are contacted by refrigerant circulation, and cold-producing medium plays intermediation; Chilled water takes away the heat in room, and cooling water takes away the heat of chilled water.
But the general energy consumption of above-mentioned computer-room air conditioning system is higher, lack of wisdom temperature treatment and regulation and control again, for reducing the energy consumption of above-mentioned computer-room air conditioning system, some producers have carried out the technological improvement of energy-saving and emission-reduction to existing central air conditioner system.As the application number 200910192602.0 disclosed in Chinese patent literature, publication date on 04 20th, 2011, denomination of invention " a kind of energy-saving control method for central air conditioner system "; This energy-saving control method by multiple sensor image data, self-inspection data, control data sets and display, mathematical logic analyzing and processing and control, execution data export, service data stores and exports and this six functions of long distance control system, central air conditioner system is carried out in real time and remote intelligent, automation Energy Saving Control; And the data gathered by multiple sensor, by the data of self-inspection are compared with the control data of setting, carry out control data analyzing and processing, thus realize the automatic startup of the auxiliary equipment such as refrigerating water pump, coolant pump and the cooling tower blower fan to central air conditioner system, then central air conditioner system main frame is made to run according to the pattern delayed startup of setting, and with the control data that the chilled water of central air conditioner system main frame, cooling water delivery outlet set with the coolant-temperature gage reclaiming entrance, control the duty of adjustment complete machine.But the design of the aspects such as the energy efficiency management of above-mentioned central air conditioner system and existing like product, energy-saving effect or not good enough; In similar central air conditioner system, the water-cooling fan mode noise of cooling tower is comparatively large simultaneously, takes up an area space comparatively greatly, easily produces the phenomenon that raindrop descend slowly and lightly, therefore needs further Improvement and perfection.
Summary of the invention
For overcoming above-mentioned deficiency, the object of the invention is to provide a kind of controlling system of central air conditioner to this area, make it solve existing like product energy efficiency management and energy-saving effect not good enough, science is owed in Based Intelligent Control and data acquisition, and the technical problem of the refrigerating mode less effective of water-cooling fan.Its objective is and to be achieved through the following technical solutions.
A kind of controlling system of central air conditioner, this energy-saving control system comprises refrigeration station machine room, computer, and the room end that pipeline connects, refrigeration station machine room comprises refrigeration host computer, refrigerating water pump, coolant pump, water collector, water knockout drum, heat-exchanger pump, and frequency-conversion control cabinet and signal switch board, the relevant device of computer and computer, control program, and frequency-conversion control cabinet and signal switch board form fuzzy controller, water knockout drum connects water main, the outlet pipe of water main and refrigerating water pump, the outlet pipe of refrigeration host computer connects, water collector connects return main, return main is connected with the water inlet pipe of refrigerating water pump, the outlet pipe of refrigeration host computer, the water inlet pipe of coolant pump is connected with the cooling blower of cooling tower, the outlet pipe of coolant pump and the water inlet pipe junction of refrigeration host computer are provided with cooling valve, the outlet pipe of refrigerating water pump and the outlet pipe junction of refrigeration host computer are provided with freezing valve, heat-exchanger pump respectively with water knockout drum, water collector connects, room end comprises fan coil, a building manager and split time type temperature controller, fan coil is arranged at the air outlet in room respectively, split time type temperature controller is respectively equipped with in room, split time type temperature controller is connected with the circuit of fan coil, the floor in room is respectively equipped with a building manager, the circuit of fan coil is connected with a building manager respectively, and a building manager is connected with computer respectively by signal switch board, it is characterized in that described refrigeration host computer, coolant pump, refrigerating water pump, heat-exchanger pump are respectively equipped with dynamic controller, coolant pump dynamic throttling instrument, refrigerating water pump dynamic throttling instrument, heat-exchanger pump dynamic throttling instrument, and be connected with computer respectively by signal switch board, each bypass duct of described water knockout drum is respectively equipped with electric control valve, each bypass duct temperature sensor respectively of water collector, the outfall sewer of coolant pump is provided with flowmeter, temperature sensor, the water inlet manifold of refrigerating water pump is provided with flowmeter, differential pressure pickup, temperature sensor, outlet pipe and the water main of refrigeration host computer are respectively equipped with temperature sensor, and above-mentioned electric control valve, temperature sensor, flowmeter, differential pressure pickup, dynamic throttling instrument are connected with computer respectively by signal switch board with dynamic controller, the data analysis of described computer flow meter, differential pressure pickup, temperature sensor transmission, by the dynamic throttling instrument of the frequency converter in frequency-conversion control cabinet to refrigerating water pump, coolant pump, heat-exchanger pump, and the dynamic controller of refrigeration host computer controls, controlled by the water outlet of electric control valve to water knockout drum, a building manager is regulated the temperature in room by split time type temperature controller, and computer is monitored by the temperature of circuit to split time type temperature controller of fan coil.
The balance that above-mentioned electric control valve achieves tail end of central air conditioner energy controls, namely in conjunction with central air-conditioning multizone cold (heat) amount equilibrium assignment energy-conserving control technology, and the fuzzy pre-judgement energy-conserving control technology of the cold and hot amount of central air-conditioning, energy saving optimizing is carried out to tail end of central air conditioner.Be specially: according to the temperature difference size of each loop return water temperature and water main's measured temperature, under ensureing the prerequisite of central air-conditioning each loop least favorable end water supply (between water main and each loop backwater pressure reduction), by the electric control valve of each loop of dynamic conditioning water knockout drum, the temperature difference of each loop is reached unanimity, thus reaching energy that each loop obtains and demand balances, the balance optimizing reaching energy controls.When central air-conditioning requirement each loop return water temperature is inconsistent, according to each loop return water temperature measured value compared with setting value, by the electric control valve of each loop of dynamic conditioning, each loop actual temperature of return water and design temperature are reached unanimity, reach the optimal control of tail end of central air conditioner cold equilibrium assignment, reach energy-efficient.When central air-conditioning load pump frequency is adjusted to lower limit; tail end of central air conditioner load is also in decline; between water main and return main, pressure reduction can increase gradually; now by regulating the pressure reduction of differential-pressure bypass valve aperture balance water main and return main two ends; unnecessary load water is made to be mixed into backwater side; ensure that its pressure at two ends remains on constant pressure reduction, while the cold heat demand of guarantee central air-conditioning, reach unit safety and the Administrative Security of protection refrigeration host computer.
Described computer is connected with the Temperature and Humidity device of outdoor setting, according to the initial temperature in the data parameters setting room of Temperature and Humidity device transmission.Because coolant pump coolant-temperature gage is relevant with the factors such as outdoor environment temperature, humidity, the time variation of weather conditions and heat extraction load, affects the control objectives that Frequency Converter Control mode reaches running efficiency of system optimization; Meanwhile, the Temperature and Humidity device of outdoor mounted is convenient to and indoor control reference.
Described split time type temperature controller replaces with interconnection type temperature controller, and interconnection type temperature controller controls the initial temperature of interconnection type temperature controller by computer.Interconnection type temperature controller possesses all functions that conventional blower coil pipe temperature controller possesses, control realization temperature can set the start and stop of transferring the files with display, third gear wind speed, monitoring running state, remote on-off, two-way electronic valve switch control rule etc., use interconnection type temperature controller can substitute plain edition temperature controller completely.Simultaneously, interconnection type temperature controller is applicable to industry, the temperature of business and family room controls, by the comparison of indoor temperature and design temperature, the fan coil of air-conditioning system end and motor-driven valve are controlled, reach and regulate indoor temperature, improve comfort level and energy-conservation object.
Described cooling tower replaces with cascade frame, and the lower header of cascade frame is connected with the water inlet pipe of coolant pump by draining valve.Cascade erection is placed in indoor or outdoors, is arranged at indoor cascade frame or is provided with glass divider wall.
Described cascade erection has minitype nozzle, lower header, water pump, booster pump, spongy layer, background light, filtration screen frame; Lower header is connected by the pipeline in cascade frame, and the upper pipe support of cascade frame is provided with minitype nozzle, and the filtration screen frame in lower header is provided with spongy layer, background light, and the junction of water pump and upper water box is provided with filter; The bottom of cascade frame is provided with mount pad, lower header is provided with water injection valve, draining valve and water level sensor, background light, water pump, booster pump, water injection valve, draining valve and water level sensor, the control module of cascade frame is connected with computer by signal switch board, and draining valve is connected with the water inlet pipe of coolant pump by suction pump.Namely send into coolant pump after the hot water that refrigeration host computer is discharged is cooled up and down repeatedly by the direct hanging type of cascade frame, for coolant pump, the cooling of refrigeration host computer is supplied water; Meanwhile, also upper water box can be set at the minitype nozzle place of cascade frame, temporarily store water source by upper water box.
Described minitype nozzle is miniature electromagnetic valve shower nozzle, and miniature electromagnetic valve shower nozzle is connected with the control module of cascade frame.Be convenient to by miniature electromagnetic valve shower nozzle the effect that on control module and computer control cascade frame, water curtain produces, thus make water curtain effect better abundant.
Described cascade erection has projecting apparatus and sound equipment, and projecting apparatus is connected with the control module of sound equipment with cascade frame.The water curtain effect of above-mentioned projecting apparatus, sound equipment Bound moisture curtain frame, namely can be used for the broadcasting of water screen film or video.
The filtration screen frame of described lower header is provided with numerical control gimbaled nozzle, and the steer motor of numerical control gimbaled nozzle is connected with the control module of cascade frame.Numerical control gimbaled nozzle is convenient to be controlled by control module and computer, while cascade frame produces water curtain, also can produce different effect of fountains.
Described cascade erection is placed in back pool, and back pool is provided with filter course with the place of communicating of lower header.Back pool is convenient to the water resource recovery that cascade frame is scattered outside support body, and again utilizes, thus saves the waste of water resource.
The window of described room end is provided with controller of windowing, and controller of windowing is connected with computer by a building manager.Thus check room whether using air-condition under the state of windowing by computer.
Energy-saving effect of the present invention, energy efficiency management are good, and accurately, the water-cooling pattern noise of cascade frame is little, takes up an area little for Based Intelligent Control and data acquisition, uses rationally; Be applicable to variable-flow optimization and the energy-saving and emission-reduction of central air-conditioning, and the structure of cooling assembly water-cooling pattern is improved.
Accompanying drawing explanation
Fig. 1 is operation principle schematic diagram of the present invention.
Fig. 2 is cascade shelf structure schematic diagram of the present invention.
Figure number and title: 1, refrigeration host computer, 2, coolant pump, 3, water-cooling fan, 4, refrigerating water pump, 5, water collector, 6, water knockout drum, 7, electric control valve, 8, freezing valve, 9, cooling valve, 10, cascade frame.
Detailed description of the invention
Now by reference to the accompanying drawings, the present invention is further described the transformation of existing Hospital Central Air-conditioning System, use and operation principle.As shown in Figure 1, this energy-saving control system comprises refrigeration station machine room, computer, and the room end that pipeline connects, refrigeration station machine room comprises refrigeration host computer, refrigerating water pump, coolant pump, water collector, water knockout drum, heat-exchanger pump, and frequency-conversion control cabinet and signal switch board, the relevant device of computer and computer, control program, and frequency-conversion control cabinet and signal switch board form fuzzy controller, water knockout drum connects water main, the outlet pipe of water main and refrigerating water pump, the outlet pipe of refrigeration host computer connects, water collector connects return main, return main is connected with the water inlet pipe of refrigerating water pump, the outlet pipe of refrigeration host computer, the water inlet pipe of coolant pump is connected with the cooling blower of cooling tower, the outlet pipe of coolant pump and the water inlet pipe junction of refrigeration host computer are provided with cooling valve, the outlet pipe of refrigerating water pump and the outlet pipe junction of refrigeration host computer are provided with freezing valve, heat-exchanger pump respectively with water knockout drum, water collector connects, room end comprises fan coil, a building manager and split time type temperature controller, fan coil is arranged at the air outlet in room respectively, split time type temperature controller is respectively equipped with in room, split time type temperature controller is connected with the circuit of fan coil, the floor in room is respectively equipped with a building manager, the circuit of fan coil is connected with a building manager respectively, and a building manager is connected with computer respectively by signal switch board, it is characterized in that described refrigeration host computer, coolant pump, refrigerating water pump, heat-exchanger pump are respectively equipped with dynamic controller, coolant pump dynamic throttling instrument, refrigerating water pump dynamic throttling instrument, heat-exchanger pump dynamic throttling instrument, and be connected with computer respectively by signal switch board, each bypass duct of described water knockout drum is respectively equipped with electric control valve, each bypass duct temperature sensor respectively of water collector, the outfall sewer of coolant pump is provided with flowmeter, temperature sensor, the water inlet manifold of refrigerating water pump is provided with flowmeter, differential pressure pickup, temperature sensor, outlet pipe and the water main of refrigeration host computer are respectively equipped with temperature sensor, and above-mentioned electric control valve, temperature sensor, flowmeter, differential pressure pickup, dynamic throttling instrument are connected with computer respectively by signal switch board with dynamic controller, the data analysis of described computer flow meter, differential pressure pickup, temperature sensor transmission, by the dynamic throttling instrument of the frequency converter in frequency-conversion control cabinet to refrigerating water pump, coolant pump, heat-exchanger pump, and the dynamic controller of refrigeration host computer controls, controlled by the water outlet of electric control valve to water knockout drum, a building manager is regulated the temperature in room by split time type temperature controller, and computer is monitored by the temperature of circuit to split time type temperature controller of fan coil.
The main frame operational factor of this energy-saving control system: load level absolute value or percentage; Supply water temperature setting value; Chilled water water inlet and leaving water temperature; Cooling water water inlet and leaving water temperature; Evaporator/condenser refrigerant pipeline pressure; The saturation temperature of evaporator/condenser cold-producing medium; This running time and accumulated running time; The accumulative number of starts; Temperature of lubricating oil of compressor with and supply level.Security control parameter: display various faults information and safety instruction, comprising: date, time, shutdown reason; Condensing pressure is too high; Oil pressure is too low; High oil temperature; Compressor exhaust temperature is too high; Evaporating pressure is too low.Run and control: remote startup and shutdown; Chilled water supply and return water temperature resets; Motor current percentage resets.Host Status shows: start and prepare; Safeguard protection; Shut down.Current loads is calculated according to gathered flow and chilled water supply backwater temperature difference, and with the main unit load efficiency characteristic of historical record or experience main unit load efficiency characteristic, determine the main frame number of units that needs to put into operation and concrete unit by fuzzy inference rule, guarantee that system has the highest operational efficiency.The monitoring in groups of blower fan of cooling tower: the maximum unlatching depending on blower fan of cooling tower of the cooling due to cooling water, therefore does not advise doing VFC to blower fan of cooling tower.The basic demand controlled blower fan of cooling tower ensures that the cooling water temperature (namely enter the cooling water temperature of cooling-water machine condenser, also can be called cooling tower supply water temperature) through cooling tower process meets the requirement of refrigeration machine.The liquid crystal display temperature controller of the band communication in room and relay output module, by a common twisted-pair feeder, all temperature controllers and output module are linked together, complete temperature controller by procedure configuration to bind with corresponding output module, and data are mail to control centre by bus, control centre's computer to be conducted interviews to network by web browser and controls.
Meanwhile, as shown in Figure 2, the cooling blower of this energy-saving control system above-mentioned, and cooling tower also can omit, replaced by cascade frame 10, inconvenience is set from solving cooling tower existing like product, space hold is comparatively large, and noise is comparatively large, easily produces the generation of the situations such as water droplet descends slowly and lightly.Be specially: cooling tower replaces with cascade frame, the lower header of cascade frame is connected with the water inlet pipe of coolant pump by draining valve; Described cascade erection has minitype nozzle, lower header, water pump, booster pump, spongy layer, background light, filtration screen frame; Lower header is connected by the pipeline in cascade frame, and the upper pipe support of cascade frame is provided with minitype nozzle, and the filtration screen frame in lower header is provided with spongy layer, background light, and the junction of water pump and upper water box is provided with filter; The bottom of cascade frame is provided with mount pad, lower header is provided with water injection valve, draining valve and water level sensor, background light, water pump, booster pump, water injection valve, draining valve and water level sensor, the control module of cascade frame is connected with computer by signal switch board, and draining valve is connected with the water inlet pipe of coolant pump by suction pump.Thus control the equipment in cascade frame by computer, and realize entering coolant pump, for refrigeration host computer provides cooling water after refrigeration host computer discharges the cooling of hot water by minitype nozzle.Above-mentioned minitype nozzle also can adopt miniature electromagnetic valve shower nozzle, and miniature electromagnetic valve shower nozzle is connected with the control module of cascade frame, is controlled work and the water yield of minitype nozzle by computer.
According to said structure feature, cascade frame also can be provided with projecting apparatus and sound equipment, and projecting apparatus is connected with the control module of sound equipment with cascade frame, thus is convenient to cascade frame and uses as cascade curtain; The filtration screen frame of lower header is provided with numerical control gimbaled nozzle, and the steer motor of numerical control gimbaled nozzle is connected with the control module of cascade frame, thus this cascade frame has fountain function; Cascade erection is placed in back pool, and back pool is provided with filter course with the place of communicating of lower header, thus the Water Sproading being convenient to be scattered recycles.The window of room end is provided with controller of windowing, and controller of windowing is connected with computer by a building manager.
Claims (10)
1. a controlling system of central air conditioner, this energy-saving control system comprises refrigeration station machine room, computer, and the room end that pipeline connects, refrigeration station machine room comprises refrigeration host computer (1), refrigerating water pump (2), coolant pump (4), water collector (5), water knockout drum (6), heat-exchanger pump, and frequency-conversion control cabinet and signal switch board, the relevant device of computer and computer, control program, and frequency-conversion control cabinet and signal switch board form fuzzy controller, water knockout drum connects water main, the outlet pipe of water main and refrigerating water pump, the outlet pipe of refrigeration host computer connects, water collector connects return main, return main is connected with the water inlet pipe of refrigerating water pump, the outlet pipe of refrigeration host computer, the water inlet pipe of coolant pump is connected with the cooling blower (3) of cooling tower, the outlet pipe of coolant pump and the water inlet pipe junction of refrigeration host computer are provided with and cool valve (9), the outlet pipe of refrigerating water pump and the outlet pipe junction of refrigeration host computer are provided with freezing valve (8), heat-exchanger pump respectively with water knockout drum, water collector connects, room end comprises fan coil, a building manager and split time type temperature controller, fan coil is arranged at the air outlet in room respectively, split time type temperature controller is respectively equipped with in room, split time type temperature controller is connected with the circuit of fan coil, the floor in room is respectively equipped with a building manager, the circuit of fan coil is connected with a building manager respectively, and a building manager is connected with computer respectively by signal switch board, it is characterized in that described refrigeration host computer (1), coolant pump (2), refrigerating water pump (4), heat-exchanger pump are respectively equipped with dynamic controller, coolant pump dynamic throttling instrument, refrigerating water pump dynamic throttling instrument, heat-exchanger pump dynamic throttling instrument, and be connected with computer respectively by signal switch board, each bypass duct of described water knockout drum (6) is respectively equipped with electric control valve (7), each bypass duct temperature sensor respectively of water collector (5), the outfall sewer of coolant pump (2) is provided with flowmeter, temperature sensor, the water inlet manifold of refrigerating water pump (4) is provided with flowmeter, differential pressure pickup, temperature sensor, outlet pipe and the water main of refrigeration host computer (1) are respectively equipped with temperature sensor, above-mentioned electric control valve, temperature sensor, flowmeter, differential pressure pickup, dynamic throttling instrument is connected with computer respectively by signal switch board with dynamic controller, the data analysis of described computer flow meter, differential pressure pickup, temperature sensor transmission, by the dynamic throttling instrument of the frequency converter in frequency-conversion control cabinet to refrigerating water pump, coolant pump, heat-exchanger pump, and the dynamic controller of refrigeration host computer controls, controlled by the water outlet of electric control valve to water knockout drum, a building manager is regulated the temperature in room by split time type temperature controller, and computer is monitored by the temperature of circuit to split time type temperature controller of fan coil.
2. controlling system of central air conditioner as claimed in claim 1, is characterized in that described computer is connected with the Temperature and Humidity device of outdoor setting, according to the initial temperature in the data parameters setting room of Temperature and Humidity device transmission.
3. controlling system of central air conditioner as claimed in claim 1, is characterized in that described split time type temperature controller replaces with interconnection type temperature controller, and interconnection type temperature controller controls the initial temperature of interconnection type temperature controller by computer.
4. controlling system of central air conditioner as claimed in claim 1, it is characterized in that described cooling tower replaces with cascade frame (10), the lower header of cascade frame is connected with the water inlet pipe of coolant pump by draining valve.
5. controlling system of central air conditioner as claimed in claim 4, is characterized in that described cascade frame (10) is provided with minitype nozzle, lower header, water pump, booster pump, spongy layer, background light, filtration screen frame; Lower header is connected by the pipeline in cascade frame, and the upper pipe support of cascade frame is provided with minitype nozzle, and the filtration screen frame in lower header is provided with spongy layer, background light, and the junction of water pump and upper water box is provided with filter; The bottom of cascade frame is provided with mount pad, lower header is provided with water injection valve, draining valve and water level sensor, background light, water pump, booster pump, water injection valve, draining valve and water level sensor, the control module of cascade frame is connected with computer by signal switch board, and draining valve is connected with the water inlet pipe of coolant pump by suction pump.
6. controlling system of central air conditioner as claimed in claim 5, it is characterized in that described minitype nozzle is miniature electromagnetic valve shower nozzle, miniature electromagnetic valve shower nozzle is connected with the control module of cascade frame (10).
7. controlling system of central air conditioner as claimed in claim 6, it is characterized in that the erection of described cascade has projecting apparatus and sound equipment, projecting apparatus is connected with the control module of sound equipment with cascade frame (10).
8. controlling system of central air conditioner as claimed in claim 5, it is characterized in that the filtration screen frame of described lower header is provided with numerical control gimbaled nozzle, the steer motor of numerical control gimbaled nozzle is connected with the control module of cascade frame (10).
9. controlling system of central air conditioner as claimed in claim 5, it is characterized in that described cascade frame (10) is arranged in back pool, back pool is provided with filter course with the place of communicating of lower header.
10. controlling system of central air conditioner as claimed in claim 1, it is characterized in that the window of described room end is provided with controller of windowing, controller of windowing is connected with computer by a building manager.
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| CN201510593251.XA CN105135637B (en) | 2015-09-12 | 2015-09-12 | Controlling system of central air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339778A (en) * | 2017-07-11 | 2017-11-10 | 上海九谷智能科技有限公司 | A kind of HVAC energy consumption control system based on state recognition |
| CN109539433A (en) * | 2018-10-15 | 2019-03-29 | 平安科技（深圳）有限公司 | Cooling water train, loop control scheme and storage medium |
| CN112628888A (en) * | 2020-04-03 | 2021-04-09 | 中山职业技术学院 | Hotel central air-conditioning energy-saving system based on wireless |
| CN112947285A (en) * | 2021-03-19 | 2021-06-11 | 厦门势拓伺服科技股份有限公司 | Power transformation and distribution room joint control energy-saving system |
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| CN112628888A (en) * | 2020-04-03 | 2021-04-09 | 中山职业技术学院 | Hotel central air-conditioning energy-saving system based on wireless |
| CN112628888B (en) * | 2020-04-03 | 2021-09-10 | 中山职业技术学院 | Hotel central air-conditioning energy-saving system based on wireless |
| CN112947285A (en) * | 2021-03-19 | 2021-06-11 | 厦门势拓伺服科技股份有限公司 | Power transformation and distribution room joint control energy-saving system |
| CN112947285B (en) * | 2021-03-19 | 2022-05-31 | 厦门势拓伺服科技股份有限公司 | Power transformation and distribution room joint control energy-saving system |
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