CN104075403A - Air-conditioning energy consumption monitoring and diagnosing system and method - Google Patents
Air-conditioning energy consumption monitoring and diagnosing system and method Download PDFInfo
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- CN104075403A CN104075403A CN201410280464.2A CN201410280464A CN104075403A CN 104075403 A CN104075403 A CN 104075403A CN 201410280464 A CN201410280464 A CN 201410280464A CN 104075403 A CN104075403 A CN 104075403A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 74
- 238000005265 energy consumption Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 239000000498 cooling water Substances 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 12
- 238000003745 diagnosis Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 206010008190 Cerebrovascular accident Diseases 0.000 claims description 2
- 208000006011 Stroke Diseases 0.000 claims description 2
- 238000002405 diagnostic procedure Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 11
- 230000009466 transformation Effects 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000013480 data collection Methods 0.000 abstract 2
- 238000005457 optimization Methods 0.000 abstract 2
- 230000008676 import Effects 0.000 description 9
- 239000002826 coolant Substances 0.000 description 7
- 238000007726 management method Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention relates to an air-conditioning energy consumption monitoring and diagnosing system and method. A data collection system, a database system, a network service system and a user terminal system provide air-conditioning system operation managers with real-time energy consumption monitoring data, diagnose energy conservation transformation objects and provide a system optimization design plan. The data collection system is mainly used for collecting original operation data of an air-conditioning system and a device of the air-conditioning system, the database system is mainly used for establishing an original database for operating the air-conditioning system and an adjustable variable base of the air-conditioning system, the network service system is mainly used for user management, energy consumption analyses and determination of transformation objects, and the user terminal system is used for providing the air-conditioning system with an energy conservation optimization transformation plan. The air-conditioning energy consumption monitoring and diagnosing system and method are capable of helping the air-conditioning system operation managers real-timely manage and trace energy efficiency of a refrigerating system, evaluate problems existing in the air-conditioning system, and optimize designs of the air-conditioning system.
Description
Technical field
Patent of the present invention belongs to energy consumption monitoring field, is specifically related to a kind of air conditioning energy consumption monitoring and diagnosis system and method.
Background technology
In the nervous situation of global energy, energy-saving and cost-reducing day by day urgent.The power of air-conditioning system is large, energy consumption is high, occupies very large ratio in building energy consumption, and the energy conservation of therefore carrying out air-conditioning system has realistic meaning.
At present, it is the Main Means of energy-saving reformation of air conditioner that the technological transformation of air-conditioning equipment, PLC (programmable logic controller (PLC)) Based Intelligent Control, variable air rate are controlled, the warning of equipment fault is the Main Means of air-conditioning system automated diagnostic with diagnosis, but single means all can not guarantee the energy-efficient operation of air-conditioning system.Air-conditioning system equipment coordination affects, running technology is complicated, running environment parameter is changeable, need to consider the technical factor of system links, just can reach desirable effect, at present, go back that the neither one operation operational management person that independently device is helped air-conditioning system measures in real time and the efficiency of tracking system cooling system, the problem that assessment air-conditioning system exists, the design of optimizing air-conditioning system.
Summary of the invention
The object of the present invention is to provide a kind of air conditioning energy consumption monitoring and diagnosis system and method, can help the operation operational management person of air-conditioning system to measure in real time the efficiency with tracking system cooling system, the problem that assessment air-conditioning system exists, optimizes the design of air-conditioning system.
The technical solution adopted in the present invention is: a kind of air conditioning energy consumption monitoring and diagnosis system, comprises connected successively data collecting system, Database Systems, network service system and client terminal system;
Data collecting system is mainly used in gathering the original service data of air-conditioning system and equipment thereof;
Database Systems are mainly used in setting up the raw data base of air-conditioning system operation and the adjustable variables storehouse of air-conditioning system;
Network service system is mainly used in user management and energy consumption analysis;
Client terminal system is mainly used in providing Optimizing Reconstruction scheme.
Further, the diagnostic method of described system comprises successively:
S1) data collecting system gathers the original service data of air-conditioning system and equipment thereof by various sensors and flowmeter;
S2) original service data is sent into Database Systems, and Database Systems provide storage, query function for these data, and air-conditioning system adjustable apparatus base variable is provided;
S3) network service system is that different users arranges authority by user management module, and according to the variate-value after regulating in the original service data of Database Systems and adjustable apparatus base variable, calculate the Energy Efficiency Ratio of air-conditioning system, if Energy Efficiency Ratio is below standard, send warning message targetedly, if Energy Efficiency Ratio method ends up to standard flow process;
S4) client terminal system, according to warning message, is revised the variable parameter in adjustable apparatus base variable by network service system, then turns back in step S3 and calculates Energy Efficiency Ratio, until Energy Efficiency Ratio is up to standard.
Further, the original service data that step S1 gathers comprises chilled water import and export temperature, chilled water import and export pressure, cooling water import and export temperature, cooling water import and export pressure, temperature, humidity that air conditioning chamber is inside and outside, the flow of chilled water and cooling water, the temperature of air conditioner fresh air, humidity, the temperature of air-conditioning return air, humidity, the temperature of air-conditioning, humidity, the resh air requirement of air-conditioning, air output and return air amount, the power of handpiece Water Chilling Units and rate of load condensate, the power of chilled water pump and rate of load condensate, the power of cooling water pump and rate of load condensate, the power of cooling tower and rate of load condensate.
Further, the adjustable apparatus base variable described in step S2 comprises the adjustable parameter described in following table:
In upper table, the rotating speed of various water pumps and the power of aforementioned each water pump are directly proportional, and air-conditioning unit input power is directly proportional to its power of fan.
Further, the Energy Efficiency Ratio ε of step S3
dcomputing formula is:
ε
d＝Q
d/W
d，
Wherein, Q
dspecified cooling or the heating load of system, the kW of unit; W
dto reach design for the power sum of each equipment of the required consumption of cold, the kW of unit.
Further, design is for the power W of each equipment of the required consumption of cold
dbe the power sum of each equipment, specifically comprise the power of handpiece Water Chilling Units, the power of chilled water pump, the power of cooling water pump, the power of blower fan of cooling tower, the power of air-conditioning unit apoplexy machine.
Advantage of the present invention: the present invention, to the end equipment of air-conditioning system, cold junction device, comprises indoor and outdoor humiture, the temperature of chilled water and cooling water, flow, the equipment complete detection such as handpiece Water Chilling Units, pump merit, and carry out Energy Efficiency Analysis, diagnosis low-energy-efficiency problem.
Accompanying drawing explanation
Accompanying drawing 1 is the flow chart that a kind of air conditioning energy consumption monitoring and diagnosis system and method is realized.
Accompanying drawing 2 is the hardware block diagram of air-conditioning system of the present invention.
In figure, 1: air-supply end temperature sensor; 2: air-supply end humidity sensor; 3: air-supply end flow sensor; 4: new wind end temperature sensor; 5: new wind end humidity sensor; 6: new wind end flow sensor; 7: return air end flow sensor; 8: return air end humidity sensor; 9: return air end temperature sensor; 10: chilled water inlet pressure sensor; 11: chilled water inlet temperature sensor; 12: chilled water outlet temperature sensor; 13: chilled water outlet flow sensor; 14: chilled water outlet pressure sensor; 15: cooling water inlet pressure sensor; 16: cooling water inlet temperature sensor; 17: cooling water outlet temperature sensor; 18: coolant outlet flow sensor; 19: coolant outlet pressure sensor; 20: chilled water pump inlet pressure sensor; 21: chilled water pump outlet speed probe; 22: cooling water pump inlet pressure sensor; 23: cooling water pump outlet speed probe; 24: chilled water pump; 25: cooling water pump.
The specific embodiment
As shown in Figure 2, the two ends of air-conditioning unit are connected with the chilled water import and export of handpiece Water Chilling Units respectively, and the cooling water import and export of handpiece Water Chilling Units is connected with the two ends of cooling tower respectively.Air-conditioning unit is provided with air-supply end temperature sensor 1, air-supply end humidity sensor 2, air-supply end flow sensor 3, new wind end temperature sensor 4, new wind end humidity sensor 5, new wind end flow sensor 6, return air end flow sensor 7, return air end humidity sensor 8 and return air end temperature sensor 9.The chilled water import of handpiece Water Chilling Units is provided with chilled water inlet pressure sensor 10, chilled water inlet temperature sensor 11.Between the chilled water outlet of handpiece Water Chilling Units and air-conditioning unit, be connected to chilled water pump 24, chilled water pump 24 is provided with chilled water pump inlet pressure sensor 20, chilled water pump outlet speed probe 21.On the chilled water outlet of handpiece Water Chilling Units, be connected to chilled water outlet temperature sensor 12, chilled water outlet flow sensor 13, chilled water outlet pressure sensor 14.On the cooling water inlet of handpiece Water Chilling Units, be connected to cooling water inlet pressure sensor 15, cooling water inlet temperature sensor 16.Between the coolant outlet of handpiece Water Chilling Units and cooling tower, be also connected to cooling water pump 25, on cooling water pump 25, be connected to cooling water pump inlet pressure sensor 22, cooling water pump outlet speed probe 23.On the coolant outlet of handpiece Water Chilling Units, be connected to cooling water outlet temperature sensor 17, coolant outlet flow sensor 18, coolant outlet pressure sensor 19.
As shown in Figure 1, the present invention includes data collecting system, Database Systems, network service system and client terminal system four parts.
Data collecting system is mainly used in gathering the original service data of air-conditioning system and equipment thereof.The data that data collecting system gathers by various sensors and flowmeter, comprise chilled water import and export temperature, cooling water import and export temperature, the flow of chilled water and cooling water, temperature, humidity that air conditioning chamber is inside and outside, the temperature of air conditioner fresh air, humidity, the temperature of air-conditioning return air, humidity, the temperature of air-conditioning, humidity, the resh air requirement of air-conditioning and air output, the power of refrigeration unit and rate of load condensate, the power of equipment refrigerating water pump and rate of load condensate, the power of equipment coolant pump and rate of load condensate, the power of equipment cooling tower and rate of load condensate etc.The initial data gathering is by RS485 line access data storehouse system.
Database Systems, except original operation of air conditioner system, also need the data of adjustable variables device as a supplement.Database Systems are mainly used in setting up the raw data base of air-conditioning system operation and the adjustable variables storehouse of air-conditioning system, and provide data query and extraction for network service system.Database Systems receive the initial data of data collecting system by RS485 wiring.Initial data derives from data collecting system.The adjustable variables of air-conditioning system is for air-conditioning system adjustable apparatus, by artificially setting.Database Systems on the one hand can be for storage, inquiry and the maintenance of facility information and continuous data, and energy consumption analysis and the optimal design for follow-up air-conditioning system provides data supporting on the other hand.
Network service system carries out energy consumption analysis, for user provides transformation object and prioritization scheme, also provides the function of user management.User management module has password and privilege feature, for different users arranges different function privileges.The computational tools such as MCGS configuration software or DEST software are installed in network service system system.Energy consumption analysis function is mainly based on each energy consumption equipment of air-conditioning system, introduce the initial data of Database Systems, utilize the computational tools such as MCGS configuration software or DEST software to carry out simulation of energy consumption, the operation energy consumption of air-conditioning system is made and analyzed the Energy Efficiency Ratio that draws air-conditioning system, and with country or industry regulation scale value is compared, when actual Energy Efficiency Ratio when to scale value (for example, lower than 2.0～2.9), network service system can send warning signal to the lower equipment of Energy Efficiency Ratio, determines transformation object.By this Energy Efficiency Ratio index, can understand the efficiency situation of building when initial design, and as the benchmark of running Energy Efficiency Ratio.Can add up by the Air-conditioner design situation to a large amount of, understand the design Energy Efficiency Ratio of current different system, and determine the zone of reasonableness of design Energy Efficiency Ratio, in order to the air-conditioning system of new building is carried out to Energy efficiency evaluation.
Client terminal system is according to the caution signal of object to be transformed, by what change adjusting device, respectively transform object variable parameter, transformation object is optimized, makes the energy consumption efficiency of system and the efficiency of each equipment reach optimum, for the reducing energy consumption of air-conditioning system provides preferred plan.
Claims (6)
1. an air conditioning energy consumption monitoring and diagnosis system, is characterized in that: comprise connected successively data collecting system, Database Systems, network service system and client terminal system;
Data collecting system is mainly used in gathering the original service data of air-conditioning system and equipment thereof;
Database Systems are mainly used in setting up the raw data base of air-conditioning system operation and the adjustable variables storehouse of air-conditioning system;
Network service system is mainly used in user management and energy consumption analysis;
Client terminal system is mainly used in providing Optimizing Reconstruction scheme.
2. the diagnostic method of system according to claim 1, is characterized in that comprising successively:
S1) data collecting system gathers the original service data of air-conditioning system and equipment thereof by various sensors and flowmeter;
S2) original service data is sent into Database Systems, and Database Systems provide storage, query function for these data, and air-conditioning system adjustable apparatus base variable is provided;
S3) network service system is that different users arranges authority by user management module, and according to the variate-value after regulating in the original service data of Database Systems and adjustable apparatus base variable, calculate the Energy Efficiency Ratio of air-conditioning system, if Energy Efficiency Ratio is below standard, send warning message targetedly, if Energy Efficiency Ratio method ends up to standard flow process;
S4) client terminal system, according to warning message, is revised the variable parameter in adjustable apparatus base variable by network service system, then turns back in step S3 and calculates Energy Efficiency Ratio, until Energy Efficiency Ratio is up to standard.
3. method according to claim 2, it is characterized in that: the original service data that step S1 gathers comprises that chilled water enters, outlet temperature, chilled water enters, outlet pressure, cooling water enters, outlet temperature, cooling water enters, outlet pressure, the temperature that air conditioning chamber is inside and outside, humidity, the flow of chilled water and cooling water, the temperature of air conditioner fresh air, humidity, the temperature of air-conditioning return air, humidity, the temperature of air-conditioning, humidity, the resh air requirement of air-conditioning, air output and return air amount, the power of handpiece Water Chilling Units and rate of load condensate, the power of chilled water pump and rate of load condensate, the power of cooling water pump and rate of load condensate, the power of blower fan of cooling tower and rate of load condensate, power and the rate of load condensate of air-conditioning unit blower fan.
4. method according to claim 2, is characterized in that: the adjustable apparatus base variable described in step S2 comprises the adjustable parameter described in following table:
5. method according to claim 4, is characterized in that, the Energy Efficiency Ratio ε of step S3
dcomputing formula is:
ε
d＝Q
d/W
d，
Wherein, Q
dcooling or the heating load of system, W
dit is the power sum that reaches the cooling of system or each equipment of the required consumption of heating load.
6. method according to claim 5, is characterized in that: calculate W
dthe power sum of each equipment, specifically comprise the power of handpiece Water Chilling Units, the power of the power of chilled water pump, cooling water pump, the power sum of the power of blower fan of cooling tower and air-conditioning unit apoplexy machine.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104374052A (en) * | 2014-11-18 | 2015-02-25 | 柳州市金旭节能科技有限公司 | Central air conditioner energy-saving control method and system based on neural network |
| CN105277383A (en) * | 2015-11-19 | 2016-01-27 | 中机意园工程科技股份有限公司 | Portable intelligent energy efficiency ratio determination system |
| CN105627504A (en) * | 2015-05-28 | 2016-06-01 | 重庆大学 | Energy consumption estimation method for water chilling unit of variable-air-volume central air conditioning system based on support vector machine |
| CN105972710A (en) * | 2016-04-28 | 2016-09-28 | 广州南鸥电子科技有限公司 | Multifunctional environment-friendly energy-saving ice storage movable air conditioner and refrigerating method thereof |
| CN105972756A (en) * | 2016-05-19 | 2016-09-28 | 无锡汇能达科技有限公司 | Method for testing COP value of central air conditioner |
| CN106123199A (en) * | 2016-02-19 | 2016-11-16 | 广东工业大学 | The reference energy consumption method of the air conditioning system operation energy consumption with water-cooled unit as low-temperature receiver |
| CN106440185A (en) * | 2016-08-15 | 2017-02-22 | 深圳市纬度节能服务有限公司 | Method and device for energy saving of air-conditioning water system |
| CN107202404A (en) * | 2017-06-08 | 2017-09-26 | 无锡走向智能科技有限公司 | A kind of air-conditioning energy efficiency management system and method |
| CN107449116A (en) * | 2017-07-21 | 2017-12-08 | 杜杰 | Base station air conditioner control system and its control method based on communication network |
| CN107461888A (en) * | 2017-07-31 | 2017-12-12 | 深圳达实智能股份有限公司 | A kind of appraisal procedure and device of hospital's fan coil air conveying efficiency |
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| CN109737574A (en) * | 2018-12-27 | 2019-05-10 | 北京航天智造科技发展有限公司 | Central air conditioning energy-consumption monitoring method and system |
| CN110702438A (en) * | 2019-09-23 | 2020-01-17 | 天津大学 | Centrifugal water chilling unit and fresh air system combined fault diagnosis method |
| CN112503835A (en) * | 2020-11-27 | 2021-03-16 | 江苏易道节能技术有限公司 | Management system and test method for energy-saving efficiency of refrigeration house refrigeration system |
| CN112524750A (en) * | 2020-11-03 | 2021-03-19 | 上海工程技术大学 | Cold water and air conditioning unit energy efficiency monitoring method, device, equipment and storage medium |
| CN114704922A (en) * | 2022-04-01 | 2022-07-05 | 南京亚派软件技术有限公司 | Energy efficiency analysis system of machine room air conditioner |
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2014
- 2014-06-20 CN CN201410280464.2A patent/CN104075403A/en active Pending
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| CN104374052B (en) * | 2014-11-18 | 2017-07-11 | 珠海富蓝克建设工程有限公司 | Energy-saving control method for central air conditioner and system based on neutral net |
| CN104374052A (en) * | 2014-11-18 | 2015-02-25 | 柳州市金旭节能科技有限公司 | Central air conditioner energy-saving control method and system based on neural network |
| CN105627504A (en) * | 2015-05-28 | 2016-06-01 | 重庆大学 | Energy consumption estimation method for water chilling unit of variable-air-volume central air conditioning system based on support vector machine |
| CN105627504B (en) * | 2015-05-28 | 2018-09-18 | 重庆大学 | Variable air volume central air-conditioner system handpiece Water Chilling Units energy consumption method of estimation based on support vector machines |
| CN105277383A (en) * | 2015-11-19 | 2016-01-27 | 中机意园工程科技股份有限公司 | Portable intelligent energy efficiency ratio determination system |
| CN106123199A (en) * | 2016-02-19 | 2016-11-16 | 广东工业大学 | The reference energy consumption method of the air conditioning system operation energy consumption with water-cooled unit as low-temperature receiver |
| CN105972710A (en) * | 2016-04-28 | 2016-09-28 | 广州南鸥电子科技有限公司 | Multifunctional environment-friendly energy-saving ice storage movable air conditioner and refrigerating method thereof |
| CN105972756A (en) * | 2016-05-19 | 2016-09-28 | 无锡汇能达科技有限公司 | Method for testing COP value of central air conditioner |
| CN106440185A (en) * | 2016-08-15 | 2017-02-22 | 深圳市纬度节能服务有限公司 | Method and device for energy saving of air-conditioning water system |
| CN107202404A (en) * | 2017-06-08 | 2017-09-26 | 无锡走向智能科技有限公司 | A kind of air-conditioning energy efficiency management system and method |
| CN107449116A (en) * | 2017-07-21 | 2017-12-08 | 杜杰 | Base station air conditioner control system and its control method based on communication network |
| CN107461886A (en) * | 2017-07-28 | 2017-12-12 | 深圳达实智能股份有限公司 | A kind of appraisal procedure and device of hospital's PAU cold conveying efficiency |
| CN107461888A (en) * | 2017-07-31 | 2017-12-12 | 深圳达实智能股份有限公司 | A kind of appraisal procedure and device of hospital's fan coil air conveying efficiency |
| CN109737574A (en) * | 2018-12-27 | 2019-05-10 | 北京航天智造科技发展有限公司 | Central air conditioning energy-consumption monitoring method and system |
| CN110702438A (en) * | 2019-09-23 | 2020-01-17 | 天津大学 | Centrifugal water chilling unit and fresh air system combined fault diagnosis method |
| CN110702438B (en) * | 2019-09-23 | 2020-09-18 | 天津大学 | Centrifugal water chilling unit and fresh air system combined fault diagnosis method |
| CN112524750A (en) * | 2020-11-03 | 2021-03-19 | 上海工程技术大学 | Cold water and air conditioning unit energy efficiency monitoring method, device, equipment and storage medium |
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