CN203533789U - Fuzzy control system of hot-water circulating device of central air conditioner - Google Patents
Fuzzy control system of hot-water circulating device of central air conditioner Download PDFInfo
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- CN203533789U CN203533789U CN201320567590.7U CN201320567590U CN203533789U CN 203533789 U CN203533789 U CN 203533789U CN 201320567590 U CN201320567590 U CN 201320567590U CN 203533789 U CN203533789 U CN 203533789U
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Abstract
The utility model relates to the technical field of control systems, in particular to a fuzzy control system of a hot-water circulating device of a central air conditioner. The fuzzy control system of the hot-water circulating device of the central air conditioner is used for controlling a plurality of sub-air-conditioner hot-water circulating devices in different refrigeration stations. Each refrigeration station comprises a sub-control device and a data acquisition device. Each sub-air-conditioner hot-water circulating device is connected with the corresponding sub-control device and the corresponding data acquisition device, wherein the sub-air-conditioner hot-water circulating device, the sub-control device and the data acquisition device are located in the same refrigeration station. The fuzzy control system further comprises a central fuzzy controller. Each sub-control device comprises an on-site fuzzy control box and a hot-water pump intelligent control cabinet. According to the fuzzy control system of the hot-water circulating device of the central air conditioner, the sub-air-conditioner hot-water circulating device of each refrigeration station is controlled by the corresponding sub-control device, communication is conducted between each sub-control device and the central fuzzy controller through an RS485 bus, central control and management is achieved on the central fuzzy controller, as a result, wiring can be reduced, more energy is saved, environmental friendliness is better achieved, the operation pressure of the central fuzzy controller can also be relieved, and the stability and the reliability of the whole system are improved.
Description
Technical field
The utility model relates to control system technical field, particularly relates to a kind of Fuzzy control system of central air-conditioning hot water circulating device.
Background technology
Along with scientific and technical development and the raising of living standards of the people, the application of central air conditioner system is more and more general, but central air conditioner system is also building big power consumer.According to statistics, central air conditioner system energy consumption accounts for the 40%-60% left and right of the total energy consumption of building, and also has the trend constantly rising.In recent years, the present situation of energy scarcity makes the referred vital position of building energy conservation.
Central air conditioner system be typical time lag, time become, the complication system of non-linear and large inertia, in prior art, central air conditioner system generally adopts Fuzzy control system to control the hot-water heating system in ownership warming-up room, due to all data processings and external control by central mould fuzzy controllers complete independently, the operating pressure of central mould fuzzy controllers is large, stability and the poor reliability of whole system will be caused, because central mould fuzzy controllers and data acquisition unit etc. are all to adopt plain conductor to be connected, therefore, need in many ways connect up, energy-conserving and environment-protective not.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art and a kind of wiring that not only can reduce is provided, energy-conserving and environment-protective more, can also reduce the operating pressure of central mould fuzzy controllers, improve the Fuzzy control system of the stability of whole system and the central air-conditioning hot water circulating device of reliability.
The purpose of this utility model is achieved through the following technical solutions:
A kind of Fuzzy control system of central air-conditioning hot water circulating device is provided, and for controlling the many covers air conditioning hot EGR that is distributed in different refrigerating plant rooms, every cover air conditioning hot EGR comprises heat-exchanger pump;
In the utility model, each refrigerating plant room is provided with sub-control device and data acquisition unit, every cover air conditioning hot EGR is all connected with data acquisition unit with the sub-control device being positioned at a refrigerating plant room, and the Fuzzy control system of central air-conditioning hot water circulating device also comprises the central mould fuzzy controllers for communicating by letter with the sub-control device of each refrigerating plant room;
Every sub-control device includes on-the-spot fuzzy control case and heat-exchanger pump Intelligent control cabinet;
In each refrigerating plant room, data acquisition unit gathers the transfer of data of sub-air conditioning hot EGR to on-the-spot fuzzy control case, on-the-spot fuzzy control case carries out these data to transfer to central mould fuzzy controllers after format conversion, and central mould fuzzy controllers is exported control signal by rotating speed and the flow of heat-exchanger pump Intelligent control cabinet control heat-exchanger pump after receiving the data that meet form;
Central mould fuzzy controllers is all connected with heat-exchanger pump Intelligent control cabinet with the on-the-spot fuzzy control case of each refrigerating plant room by RS485 bus.
Wherein, data acquisition unit is set to sensor, and hot-water heating system comprises water main and return main.
Wherein, sensor comprises current differential pressure pickup and temperature sensor, current differential pressure pickup is installed on the passage between water main and return main, and temperature sensor is installed on respectively water main and return main, and current differential pressure pickup is connected with on-the-spot fuzzy control case with temperature sensor.
Wherein, flowmeter is also installed on return main, flowmeter is connected with on-the-spot fuzzy control case.
Wherein, the channel setting between water main and return main has by-passing valve, and current differential pressure pickup is in parallel with by-passing valve.
Wherein, between water main and return main, be also provided with end heat-exchange apparatus.
Wherein, between end heat-exchange apparatus and water main, be connected to two-port valve.
Wherein, sensor also comprises environment temperature sensor and ambient humidity sensor, and environment temperature sensor is all connected with on-the-spot fuzzy control case with ambient humidity sensor.
Wherein, air-conditioning unit comprises condenser, and the water inlet pipe of condenser and outlet pipe are all provided with temperature sensor.
The beneficial effects of the utility model: in each heating machine room of the present utility model, data acquisition unit gathers the transfer of data of sub-air conditioning hot EGR to on-the-spot fuzzy control case, on-the-spot fuzzy control case carries out these data to transfer to central mould fuzzy controllers after format conversion, central mould fuzzy controllers is exported control signal by rotating speed and the flow of heat-exchanger pump Intelligent control cabinet control heat-exchanger pump after receiving the data that meet form, the utility model is by adopting subregion to control and centralized management pattern, sub-air conditioning hot EGR in each heating machine room is controlled by sub-control device, sub-control device communicates by RS485 bus and central mould fuzzy controllers again, on central mould fuzzy controllers, realize centralized control and management, not only can reduce wiring, energy-conserving and environment-protective more, can also reduce the operating pressure of central mould fuzzy controllers, improve stability and the reliability of whole system.
Accompanying drawing explanation
Utilize accompanying drawing to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the sub-air conditioning hot EGR of a heating machine room of central fuzzy Control of the present utility model and the circuit diagram of sub-control device.
1---water main;
2---return main;
3---sub-control device.
The specific embodiment
With the following Examples the utility model is further described.
The Fuzzy control system of a kind of central air-conditioning hot water circulating device of the present embodiment, as shown in Figure 1, Fig. 1 only draws the sub-air conditioning hot EGR of a heating machine room of central fuzzy Control of the present utility model and the circuit diagram of sub-control device, and sub-air conditioning hot EGR and the sub-control device of other refrigerating plant rooms do not draw.For controlling the many covers air conditioning hot EGR that is distributed in different refrigerating plant rooms, every cover air conditioning hot EGR comprises heat-exchanger pump;
In the present embodiment, each refrigerating plant room is provided with sub-control device 3 and data acquisition unit, every cover air conditioning hot EGR is all connected with data acquisition unit with the sub-control device 3 being positioned at a refrigerating plant room, and the Fuzzy control system of central air-conditioning hot water circulating device also comprises the central mould fuzzy controllers for communicating by letter with the sub-control device of each refrigerating plant room;
Every sub-control device 3 includes on-the-spot fuzzy control case and heat-exchanger pump Intelligent control cabinet;
In each refrigerating plant room, data acquisition unit gathers the transfer of data of sub-air conditioning hot EGR to on-the-spot fuzzy control case, on-the-spot fuzzy control case carries out these data to transfer to central mould fuzzy controllers after format conversion, and central mould fuzzy controllers is exported control signal by rotating speed and the flow of heat-exchanger pump Intelligent control cabinet control heat-exchanger pump after receiving the data that meet form;
Central mould fuzzy controllers is all connected with heat-exchanger pump Intelligent control cabinet with the on-the-spot fuzzy control case of each refrigerating plant room by RS485 bus, in a heating machine room, on-the-spot fuzzy control case is connected by transfer wire with data acquisition unit, and heat-exchanger pump Intelligent control cabinet is connected by transfer wire with heat-exchanger pump.
Particularly, data acquisition unit is set to sensor.Certainly, data acquisition unit can also adopt other circuit to carry out data acquisition.
The data of sub-air conditioning hot EGR comprise hot water supply water temperature, and hot water backwater's temperature, hot water are for backwater pressure reduction, hot water backwater's flow and external environment temperature, humidity etc.
Wherein, central mould fuzzy controllers provides OPC (OLE for Process Control) interface, can realize integrated with third party's management system.
Wherein, hot-water heating system comprises water main 1 and return main 2, sensor comprises current differential pressure pickup and temperature sensor, current differential pressure pickup is installed on the passage between water main 1 and return main 2, temperature sensor is installed on respectively water main 1 and return main 2, and current differential pressure pickup is connected with on-the-spot fuzzy control case with temperature sensor.Central mould fuzzy controllers according to the real time data of air-conditioning parameter and the history data of system of the air-conditioning unit sent here of on-the-spot fuzzy control case, calculate load and need use refrigerating capacity and optimum temperature, the temperature difference and pressure reduction, and make comparisons with the actual parameter that temperature sensor and current differential pressure pickup detect, according to its deviate, control the rotating speed of heat-exchanger pump, change supply and return water temperature, the temperature difference, pressure reduction and the flow that its flow makes hot-water heating system and be tending towards the optimal value that central mould fuzzy controllers is given.Heat-exchanger pump starts frequency and rises to after determinated low limit frequency, by the control parameter operation of central mould fuzzy controllers output, makes system when guaranteeing end air conditioner user comfort level demand, realizes energy-conservation to greatest extent.
Wherein, flowmeter is also installed on return main 2, flowmeter is connected with on-the-spot fuzzy control case.Outside current pressure reduction except monitoring water main 1 and return main's 2 water temperature and between water main 1 and return main 2, also monitor return main 2 flow, can make the real time data of air-conditioning parameter of the air-conditioning unit that central mould fuzzy controllers obtains more objective, more be conducive to it and provide control optimal value.
Wherein, the channel setting between water main 1 and return main 2 has by-passing valve, and current differential pressure pickup is in parallel with by-passing valve.By-passing valve can be controlled the whether conducting of passage between water main 1 and return main 2.
Wherein, between water main 1 and return main 2, be also provided with end heat-exchange apparatus.End heat-exchange apparatus can utilize the water that reclaims house steward's recovery to carry out heat exchange.
Wherein, between end heat-exchange apparatus and water main 1, be connected to two-port valve.Two-port valve where necessary conducting water main 1 water to end heat-exchange apparatus.
Wherein, sensor also comprises environment temperature sensor and ambient humidity sensor, and environment temperature sensor is all connected with on-the-spot fuzzy control case with ambient humidity sensor.Current pressure reduction except monitoring water main 1 and return main's 2 water temperature and between water main 1 and return main 2 and return main 2 flow, the temperature and humidity of monitoring of environmental also, can make the real time data of air-conditioning parameter of the air-conditioning unit that central mould fuzzy controllers obtains more objective, more be conducive to it and provide control optimal value.
Operation principle of the present utility model is:
In each heating machine room of the present utility model, data acquisition unit gathers the transfer of data of sub-air conditioning hot EGR to on-the-spot fuzzy control case, on-the-spot fuzzy control case carries out these data to transfer to central mould fuzzy controllers after format conversion, and central mould fuzzy controllers is exported control signal by rotating speed and the flow of heat-exchanger pump Intelligent control cabinet control heat-exchanger pump after receiving the data that meet form.
The utility model is by controlling and centralized management pattern by employing subregion, sub-air conditioning hot EGR in each heating machine room is controlled by sub-control device, sub-control device communicates by RS485 bus and central mould fuzzy controllers again, on central mould fuzzy controllers, realize centralized control and management, not only can reduce wiring, energy-conserving and environment-protective more, can also reduce the operating pressure of central mould fuzzy controllers, improve stability and the reliability of whole system.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (8)
1. a Fuzzy control system for central air-conditioning hot water circulating device, for controlling the many covers air conditioning hot EGR that is distributed in different refrigerating plant rooms, every cover air conditioning hot EGR comprises heat-exchanger pump;
It is characterized in that: each refrigerating plant room is provided with sub-control device and data acquisition unit, every cover air conditioning hot EGR is all connected with data acquisition unit with the sub-control device being positioned at a refrigerating plant room, and the Fuzzy control system of central air-conditioning hot water circulating device also comprises the central mould fuzzy controllers for communicating by letter with the sub-control device of each refrigerating plant room;
Every sub-control device includes on-the-spot fuzzy control case and heat-exchanger pump Intelligent control cabinet;
In each refrigerating plant room, data acquisition unit gathers the transfer of data of sub-air conditioning hot EGR to on-the-spot fuzzy control case, on-the-spot fuzzy control case carries out these data to transfer to central mould fuzzy controllers after format conversion, and central mould fuzzy controllers is exported control signal by rotating speed and the flow of heat-exchanger pump Intelligent control cabinet control heat-exchanger pump after receiving the data that meet form;
Central mould fuzzy controllers is all connected with heat-exchanger pump Intelligent control cabinet with the on-the-spot fuzzy control case of each refrigerating plant room by RS485 bus.
2. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 1, is characterized in that: data acquisition unit is set to sensor, and hot-water heating system comprises water main and return main.
3. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 2, it is characterized in that: sensor comprises current differential pressure pickup and temperature sensor, current differential pressure pickup is installed on the passage between water main and return main, temperature sensor is installed on respectively water main and return main, and current differential pressure pickup is connected with on-the-spot fuzzy control case with temperature sensor.
4. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 2, is characterized in that: flowmeter is also installed on return main, and flowmeter is connected with on-the-spot fuzzy control case.
5. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 2, is characterized in that: the channel setting between water main and return main has by-passing valve, and current differential pressure pickup is in parallel with by-passing valve.
6. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 2, is characterized in that: between water main and return main, be also provided with end heat-exchange apparatus.
7. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 6, is characterized in that: between end heat-exchange apparatus and water main, be connected to two-port valve.
8. the Fuzzy control system of central air-conditioning hot water circulating device as claimed in claim 2, it is characterized in that: sensor also comprises environment temperature sensor and ambient humidity sensor, environment temperature sensor is all connected with on-the-spot fuzzy control case with ambient humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567590.7U CN203533789U (en) | 2013-09-13 | 2013-09-13 | Fuzzy control system of hot-water circulating device of central air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567590.7U CN203533789U (en) | 2013-09-13 | 2013-09-13 | Fuzzy control system of hot-water circulating device of central air conditioner |
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| CN203533789U true CN203533789U (en) | 2014-04-09 |
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| CN201320567590.7U Expired - Fee Related CN203533789U (en) | 2013-09-13 | 2013-09-13 | Fuzzy control system of hot-water circulating device of central air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642580A (en) * | 2016-12-27 | 2017-05-10 | 天津市创辉津控科技发展有限公司 | Intelligent regulation and control system for clean room |
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2013
- 2013-09-13 CN CN201320567590.7U patent/CN203533789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642580A (en) * | 2016-12-27 | 2017-05-10 | 天津市创辉津控科技发展有限公司 | Intelligent regulation and control system for clean room |
| CN106642580B (en) * | 2016-12-27 | 2022-05-13 | 天津市创辉津控科技发展有限公司 | Intelligent regulation and control system for clean room |
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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 |
Granted publication date: 20140409 Termination date: 20140913 |
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| EXPY | Termination of patent right or utility model |