CN102418965A - Multifunctional frequency conversion central air conditioner experiment platform - Google Patents
Multifunctional frequency conversion central air conditioner experiment platform Download PDFInfo
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- CN102418965A CN102418965A CN2011102763600A CN201110276360A CN102418965A CN 102418965 A CN102418965 A CN 102418965A CN 2011102763600 A CN2011102763600 A CN 2011102763600A CN 201110276360 A CN201110276360 A CN 201110276360A CN 102418965 A CN102418965 A CN 102418965A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- 238000004378 air conditioning Methods 0.000 claims abstract description 31
- 238000005057 refrigeration Methods 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000498 cooling water Substances 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000004886 process control Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 2
- 238000011217 control strategy Methods 0.000 abstract description 4
- 238000012795 verification Methods 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N Adamantane Natural products C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
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Abstract
A multifunctional frequency conversion central air-conditioning experimental platform comprises a refrigeration system, a control system and a simulation room. The refrigerating system comprises a refrigerating unit, a chilled water system and a cooling water system. The control system comprises an upper computer, a lower computer and a frequency converter. The monitoring module in the upper computer collects the temperature, pressure and flow signals of the operation of the experiment platform through the lower computer and then sends out an operation command to monitor the operation of the refrigeration system through the lower computer or a frequency converter. An MATLAB module in the upper computer can implement an optimization control algorithm, and the MATLAB module and the monitoring module exchange data with an embedded standard (OPC) through a dynamic data exchange mechanism (DDE) or object connection of process control. The refrigerating unit comprises a variable frequency compressor, a condenser, and an air-cooled evaporator and a water-cooled evaporator which are connected in parallel in sequence. The experimental platform can simultaneously research the refrigeration effect of the air-cooled evaporator, the refrigeration effect of the water-cooled evaporator and the refrigeration effect of a variable refrigerant flow multi-connected air conditioning system (VRV air conditioning system), and can provide a verification platform for implementing an energy-saving optimization advanced control strategy for a large-scale variable-frequency central air conditioner.
Description
Technical field
The present invention relates to a kind of multifunctional variable-frequency central air-conditioning experiment porch.
Background technology
Along with Chinese economic development, central air-conditioning obtains application more and more widely in hotel, hospital, megastore's contour level building.But the extensive use of central air-conditioning has brought lot of energy consumption, has accounted for building energy consumption greatly.In addition, the present stage installed capacity of central air-conditioning of China often is higher than required load, and majority is not implemented the advanced control of energy saving optimizing simultaneously, causes energy resource consumption serious.Therefore, develop the multi-functional variable-frequency central air conditioner experiment porch that can monitor, implement the advanced control strategy of energy saving optimizing for large-scale central air-conditioning verification platform is provided, significant.
Summary of the invention
Technical problem to be solved by this invention provides a kind of multifunctional variable-frequency central air-conditioning experiment porch, can be at the effect of experiment desk research energy saving optimizing control algolithm.
For this reason, the present invention adopts following technical scheme: a kind of multifunctional variable-frequency central air-conditioning experiment porch is characterized in that it comprises refrigeration system, control system, a plurality of simulations room; Said refrigeration system comprises refrigeration unit, chilled water system, cooling water system; Said control system comprises host computer, a plurality of slave computer, a plurality of frequency converter; Said host computer comprises monitoring module and MATLAB module; Said monitoring module is used for gathering through said slave computer the signal of said experiment porch operation, and said signal comprises temperature, pressure, flow, send then control order through said slave computer or/and said refrigeration system operation is monitored through said frequency converter; Said MATLAB module can be implemented system optimizing control; Said MATLAB module and the said monitoring module object through dynamic data exchanging mechanism (DDE) or process control is connected with embedding standard (OPC) and carries out exchanges data.Technique scheme has made full use of the advantage that MATLAB is easy to realize advanced algorithm, the development cost of having practiced thrift third party software.
Adopting on the basis of technique scheme, the present invention also adopt or combined with following further technical scheme:
A kind of multifunctional variable-frequency central air-conditioning experiment porch, said refrigeration unit comprises compressor, condenser, evaporimeter successively; Said chilled water system is furnished with chilled water pump and air-treatment unit, and said air processing machine assembly has air circulation fans; Said cooling water system is furnished with cooling water pump and blower fan of cooling tower; Said compressor, said chilled water pump, said air circulation fans, said cooling water pump, said blower fan of cooling tower drive by variable-frequency motor separately; Said each variable-frequency motor is controlled by said frequency converter separately respectively.
A kind of multifunctional variable-frequency central air-conditioning experiment porch, said evaporimeter are the air-cooled evaporimeter and the water-cooled evaporimeter of parallel connection; The arrival end of the arrival end of said air-cooled evaporimeter and said water-cooled evaporimeter is in series with electric expansion valve separately.Said electric expansion valve has the full cut-off function.When the electric expansion valve of air-cooled evaporator inlet end is closed, just can verify the refrigeration of water-cooled evaporimeter.When the electric expansion valve of water-cooled evaporator inlet end is closed, just can verify the refrigeration of air-cooled evaporimeter.Simultaneously, when two electric expansion valves all do not have complete shut-down, just can verify the refrigeration of variable refrigerant volume multi-gang air conditioner (VRV air-conditioning system).
A kind of multifunctional variable-frequency central air-conditioning experiment porch, said condenser is a plate type heat exchanger, said water-cooled evaporimeter is a plate type heat exchanger, can significantly improve the heat exchanger effectiveness of cold-producing medium and water.
A kind of multifunctional variable-frequency central air-conditioning experiment porch, the port of export of said air-treatment unit behind blast main, blowpipe, air-supply air-valve actuator with said a plurality of simulations room in a simulation room be communicated with; The arrival end of said air-treatment unit behind the return air person in charge, return air arm, return air air-valve actuator with said a plurality of simulations room in a simulation room be communicated with; Said each air-valve actuator is respectively by affiliated separately said slave computer control.The intake size in said simulation room is controlled by air-supply air-valve actuator separately; The return air amount size in said simulation room is controlled by return air air-valve actuator separately.Said simulation room is processed by lucite, and is attractive in appearance, transparent, is convenient to install various kinds of sensors and actuator simultaneously.
This experiment porch can be simulated the practical operation situation of large-scale central air-conditioning well in the laboratory, implement the advanced control strategy of energy saving optimizing for large-scale central air-conditioning verification platform is provided.
Description of drawings
Fig. 1 is the structure chart of multifunctional variable-frequency central air-conditioning experiment porch.
Fig. 2 is the structure chart of multifunctional variable-frequency central air-conditioning experiment porch control system.
Label is represented respectively as follows among the figure: 1, cooling tower, 2, cooling water pump, 3, condenser, 4, compressor, 5, electric expansion valve; 6, air-cooled evaporimeter, 7, the water-cooled evaporimeter, 8, blower fan of cooling tower, 9, chilled water pump, 10, the air-treatment unit; 11, air circulation fans, 12, ajutage, 13, backwind tube, 14, the blast main, 15, return air is responsible for; 16, blowpipe, 17, the return air arm, 18, air-supply air-valve actuator, 19, return air air-valve actuator, 20, the simulation room; 21, host computer, 22, slave computer, 23, the RS485 bus, 24, frequency converter.
The specific embodiment
The specific embodiment of the present invention is that example specifies with 2 accompanying drawings.
A kind of multifunctional variable-frequency central air-conditioning experiment porch comprises refrigeration system, control system, a plurality of simulations room 20; Said refrigeration system comprises refrigeration unit, chilled water system, cooling water system; Said control system comprises host computer 21, slave computer 22, frequency converter 24; Said host computer 21 comprises monitoring module and MATLAB module; Said monitoring module is used for gathering the signal of said experiment porch operation through said slave computer 22; Said signal comprises temperature, pressure, flow, send then control order through said slave computer 22 or/and monitor through the said refrigeration systems operation of 24 pairs in said frequency converter; Said MATLAB module can be implemented system optimizing control; Said MATLAB module and the said monitoring module object through dynamic data exchanging mechanism (DDE) or process control is connected with embedding standard (OPC) and carries out exchanges data.Said refrigeration unit comprises compressor 4, condenser 3, evaporimeter successively; Said chilled water system is furnished with chilled water pump 9 and air-treatment unit 10, and said air-treatment unit 10 is furnished with air circulation fans 11, and said cooling water system is furnished with cooling water pump 2 and blower fan of cooling tower 8; Said compressor 4, said chilled water pump 9, said air circulation fans 11, said cooling water pump 2, said blower fan of cooling tower 8 drive by variable-frequency motor separately; Said each variable-frequency motor is controlled by said frequency converter 24 separately respectively.Said evaporimeter is the air-cooled evaporimeter 6 and water-cooled evaporimeter 7 of parallel connection; The arrival end of the arrival end of said air-cooled evaporimeter 6 and said water-cooled evaporimeter 7 is in series with electric expansion valve 5 separately.When the electric expansion valve 5 of air-cooled evaporimeter 6 arrival ends is closed, just can verify the refrigeration of water-cooled evaporimeter 7.When the electric expansion valve 5 of water-cooled evaporimeter 7 arrival ends is closed, just can verify the refrigeration of air-cooled evaporimeter 6.Simultaneously, when two electric expansion valves 5 all do not have complete shut-down, just can verify the refrigeration of variable refrigerant volume multi-gang air conditioner (VRV air-conditioning system).
As shown in Figure 1, the port of export of air-treatment unit 10 links to each other with blast main 14, and blast main 14 is divided into several blowpipes 16, and blowpipe 16 links to each other with separately simulation room 20 respectively.Return air is responsible for 15 the port of export and is connected air-treatment unit 10, and return air is responsible for 15 arrival end and is connected with an end of several return air arms 17, and the other end of return air arm 17 links to each other with separately simulation room 20 respectively.The air output size in the simulation room 20 that is connected with blowpipe 16 is by 18 controls of air-supply air-valve actuator, and the return air amount size in the simulation room 20 that is connected with return air arm 17 is by 19 controls of return air air-valve actuator.
Be illustrated in figure 2 as the structure chart of multifunctional variable-frequency central air-conditioning experiment porch control system, comprise host computer 21, a plurality of slave computer 22, a plurality of frequency converter 24.Host computer 21 is connected with the form of slave computer 22 with RS485 bus 23; Host computer 21 is connected with the form of frequency converter 24 with RS485 bus 23.
Host computer 21 comprises monitoring module and MATLAB module.Operation monitoring software in the monitoring module wherein is used for gathering the signal of said experiment porch operation through said slave computer 22, sends then to control order and monitor through said slave computer 22 or through 24 pairs of said refrigeration systems operations of said frequency converter; Operation MATLAB software is used to implement system optimizing control in the MATLAB module.
Slave computer 22 can adopt programmable logic controller (PLC) (PLC) or single-chip microcomputer or data acquisition control class device, adopts in the present embodiment and grinds the data acquisition control device ADAM 5000E of magnificent company.Wherein, temperature sensor adopts thermal resistance and links to each other with the ADAM5013 module; Pressure, flow sensor link to each other with the ADAM5017 module; Electric expansion valve 5 links to each other with the ADAM5056 module through its chip for driving; The air-valve actuator links to each other with the ADAM5024 module.ADAM5013 module, ADAM5017 module, ADAM5056 module all link to each other with ADAM 5000E through the slot of ADAM 5000E with the ADAM5024 module.ADAM5000E is connected with host computer 21 through RS485 bus 23.
Compressor 4, chilled water pump 9, air circulation fans 11, cooling water pump 2, blower fan of cooling tower 8 are connected with separately frequency converter 24 respectively.Frequency converter 24 is connected with host computer 21 through RS485 bus 23.
Monitoring module in the host computer 21 is gathered temperature, pressure, the flow signal of experiment porch operation through ADAM 5000E, sends then to control order and monitor through ADAM 5000E or through 24 pairs of refrigeration systems operations of frequency converter.In host computer 21, monitoring module also can connect through the object of dynamic data exchanging mechanism (DDE) or process control and embedding standard (OPC) is carried out exchanges data with the MATLAB module; The MATLAB module is based on the data of receiving, energy saving in running is optimized advanced control algorithm, draws various controlled quentity controlled variable data, and then sends to monitoring module; After monitoring module receives the controlled quentity controlled variable data that the MATLAB module sends; Send frequency setting value on the one hand and give each frequency converter 24 on the RS485 bus 23, realize the variable-frequency motor of compressor 4, chilled water pump 9, air circulation fans 11, cooling water pump 2, blower fan of cooling tower 8 is carried out rotational speed regulation control; On the other hand, monitoring module sends the controlled quentity controlled variable data through ADAM 5000E and gives executing agencies such as electric expansion valve 5, air-supply air-valve actuator 18 and return air air-valve actuator 19.
The multifunctional variable-frequency central air-conditioning experiment porch that adopts technical scheme of the present invention to develop can be the advanced control strategy of large-scale central air-conditioning enforcement energy saving optimizing verification platform is provided.
The above-mentioned specific embodiment is used for the present invention that explains; Be merely the preferred embodiments of the present invention; Rather than limit the invention; In the protection domain of spirit of the present invention and claim, any modification that the present invention is made, be equal to replacement, improvement etc., all fall into protection scope of the present invention.
Claims (6)
1. a multifunctional variable-frequency central air-conditioning experiment porch is characterized in that it comprises refrigeration system, control system, a plurality of simulations room; Said refrigeration system comprises refrigeration unit, chilled water system, cooling water system; Said control system comprises host computer, a plurality of slave computer, a plurality of frequency converter; Said host computer comprises monitoring module and MATLAB module; Said monitoring module is used for gathering through said slave computer the signal of said experiment porch operation, and said signal comprises temperature, pressure, flow, send then control order through said slave computer or/and said refrigeration system operation is monitored through said frequency converter; Said MATLAB module can be implemented system optimizing control; Said MATLAB module and the said monitoring module object through dynamic data exchanging mechanism (DDE) or process control is connected with embedding standard (OPC) and carries out exchanges data.
2. a kind of multifunctional variable-frequency central air-conditioning experiment porch as claimed in claim 1 is characterized in that said refrigeration unit comprises compressor, condenser, evaporimeter successively; Said chilled water system is furnished with chilled water pump and air-treatment unit, and said air processing machine assembly has air circulation fans; Said cooling water system is furnished with cooling water pump and blower fan of cooling tower; Said compressor, said chilled water pump, said air circulation fans, said cooling water pump, said blower fan of cooling tower drive by variable-frequency motor separately; Said each variable-frequency motor is controlled by said frequency converter separately respectively.
3. a kind of multifunctional variable-frequency central air-conditioning experiment porch as claimed in claim 2 is characterized in that air-cooled evaporimeter and the water-cooled evaporimeter of said evaporimeter for parallel connection; The arrival end of the arrival end of said air-cooled evaporimeter and said water-cooled evaporimeter is in series with electric expansion valve separately.
4. a kind of multifunctional variable-frequency central air-conditioning experiment porch as claimed in claim 3 is characterized in that said water-cooled evaporimeter is a plate type heat exchanger.
5. a kind of multifunctional variable-frequency central air-conditioning experiment porch as claimed in claim 2 is characterized in that said condenser is a plate type heat exchanger.
6. according to claim 1 or claim 2 a kind of multifunctional variable-frequency central air-conditioning experiment porch, the port of export that it is characterized in that said air-treatment unit behind blast main, blowpipe, air-supply air-valve actuator with said a plurality of simulations room in a simulation room be communicated with; The arrival end of said air-treatment unit behind the return air person in charge, return air arm, return air air-valve actuator with said a plurality of simulations room in a simulation room be communicated with; Said each air-valve actuator is respectively by affiliated separately said slave computer control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110276360 CN102418965B (en) | 2011-09-16 | 2011-09-16 | Multifunctional frequency conversion central air-conditioning experimental platform |
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| CN 201110276360 CN102418965B (en) | 2011-09-16 | 2011-09-16 | Multifunctional frequency conversion central air-conditioning experimental platform |
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| CN102418965A true CN102418965A (en) | 2012-04-18 |
| CN102418965B CN102418965B (en) | 2013-06-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266276A (en) * | 2014-09-23 | 2015-01-07 | 苏宇贵 | Water-cooled air conditioner and energy-saving control method thereof |
| CN105258286A (en) * | 2015-10-16 | 2016-01-20 | 珠海格力电器股份有限公司 | Central air-conditioning dispatching system and working method thereof |
| CN112283912A (en) * | 2020-09-28 | 2021-01-29 | 辉瑞(山东)环境科技有限公司 | Rapid temperature rise and fall system |
| CN112856723A (en) * | 2021-01-07 | 2021-05-28 | 丁一 | Cooling water pump control method and device, controller and refrigeration system |
| CN117515807A (en) * | 2023-12-25 | 2024-02-06 | 广州市百福电气设备有限公司 | Digital constant-pressure water supply energy-saving method and system |
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| CN102418965B (en) | 2013-06-05 |
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