CN103615866B - The electric unit consumption measuring method of ultra high efficiency refrigeration station and device - Google Patents
The electric unit consumption measuring method of ultra high efficiency refrigeration station and device Download PDFInfo
- Publication number
- CN103615866B CN103615866B CN201310656934.6A CN201310656934A CN103615866B CN 103615866 B CN103615866 B CN 103615866B CN 201310656934 A CN201310656934 A CN 201310656934A CN 103615866 B CN103615866 B CN 103615866B
- Authority
- CN
- China
- Prior art keywords
- unit
- refrigeration station
- refrigeration
- consumption
- kwh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to energy consumption measurement technology, aim to provide a kind of electric unit consumption measuring method and device of ultra high efficiency refrigeration station; The device of this invention comprises refrigeration unit, chilled water pump, cooling water pump and blower fan of cooling tower; The water supply line and water return pipeline of refrigeration unit are equipped with temperature sensor respectively, and the water supply line or water return pipeline of refrigeration unit are equipped with flow sensor, and in refrigeration station, equipment supply side is equipped with intelligent electric meter; Beneficial effect of the present invention is: from the angle of system, the energy consumption of Integrated Measurement System; Consider user's difference to the semen donors demand of refrigeration station in different time sections, and external environment condition change is for the impact of running efficiency of system, propose the concept adopting electricity-saving unit consumption, science accurately reflects the energy-saving effect of actual motion more, carries out energy-saving effect assessment.
Description
Technical field
The present invention relates to energy consumption measurement technology, particularly a kind of electric unit consumption measuring method of ultra high efficiency refrigeration station and device.
Background technology
In energy-saving and emission-reduction industry, it is very necessary for measuring accurately enterprise energy consumption science of carrying out.Existing metering method is mostly the mode directly adopting energy consumption difference total in a period of time, have ignored the effect of system cloud gray model load fluctuation and environmental change, lacks the concept of efficiency.
Carrying out in energy-saving and cost-reducing transformation process to refrigeration station system, because each several part exists complicated coupling influence, therefore, merely the independent energy consumption reducing each equipment might not realize best energy-saving effect, correct way is the factor considering various influential system energy consumption, carries out system energy efficiency optimal control to refrigeration station.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes electric unit consumption measuring method and device that deficiency of the prior art provides a kind of ultra high efficiency refrigeration station.Based on whole refrigeration station system, by considering the difference of its energy consumption when different refrigeration capacity requirement, surveying and calculating is carried out to the energy consumption of refrigeration station system.
For technical solution problem, solution of the present invention is:
The invention provides a kind of electric unit consumption measuring method of ultra high efficiency refrigeration station, comprise the following steps:
(1) the following operational factor of refrigeration station is measured: supply water temperature T
g, return water temperature T
h, unit: DEG C; The flow L of chilled water in feed pipe or return pipe, unit: m
3/ h;
(2) representative a period of time is chosen at refrigeration station run duration, as electric unit consumption measurement time t, unit: h; Describedly representatively to refer to: in the selected time period, refrigeration station operation conditions is good, and can normal operating condition residing for the representative system most of the time;
(3) the accumulative cold Qd of refrigeration station within this period is obtained according to following formulae discovery, unit: degree or kWh:
Qd＝∫K·L·(T
h-T
g)dt(1)
Wherein K is hot water proportion and specific heat correction factor, and its numerical value is: 4.2 × 10
6, unit: J/ (m
3dEG C);
(3) obtain system in the identical period by refrigeration station equipment supply side intelligent electric meter reading and add up electricity Ed, unit: degree or kWh;
The electric unit consumption Eq of refrigeration station is obtained according to following formulae discovery:
Eq=Ed/Qd(2)
Namely electricity unit consumption Eq produces power consumption needed for unit cold, unit: kWh/kWh.
Invention further provides the electric unit consumption measurement mechanism of the ultra high efficiency refrigeration station for realizing preceding method, its current consuming apparatus comprises refrigeration unit, chilled water pump, cooling water pump and blower fan of cooling tower; The water supply line and water return pipeline of refrigeration unit are equipped with temperature sensor respectively, and the water supply line or water return pipeline of refrigeration unit are equipped with flow sensor, and in refrigeration station, equipment supply side is equipped with intelligent electric meter; This device also comprises electric unit consumption measuring instrument, electricity unit consumption measuring instrument has display screen, supply water temperature measuring-signal interface, return water temperature measuring-signal interface, flow measurement signal interface, power consumption measuring-signal interface and host computer communication interface, is connected to each temperature sensor, flow sensor, intelligent electric meter and host computer respectively by cable.
In the present invention, in-built electrical unit consumption measurement module in described electric unit consumption measuring instrument, can obtain according to the refrigeration station operational factor recorded and following formulae discovery and produce power consumption needed for unit cold:
Qd＝∫K·L·(T
h-T
g)dt(1)
Eq=Ed/Qd(2)
In formula, each symbol is: supply water temperature T
g, return water temperature T
h, unit: DEG C; The flow L of chilled water in feed pipe or return pipe, unit: m
3/ h; Representative a period of time is chosen at refrigeration station run duration, as electric unit consumption measurement time t, unit: h; Describedly representatively to refer to: in the selected time period, refrigeration station operation conditions is good, and can normal operating condition residing for the representative system most of the time; The accumulative cold Qd of refrigeration station within this period, unit: degree or kWh:K are hot water proportion and specific heat correction factor, and its numerical value is: 4.2 × 10
6, unit: J/ (m
3dEG C); Obtain system in the identical period by refrigeration station equipment supply side intelligent electric meter reading and add up electricity Ed, unit: degree or kWh; The electric unit consumption Eq of refrigeration station, namely produces power consumption needed for unit cold, unit: kWh/kWh.
In the present invention, the display screen energy displaying data in real-time of described electric unit consumption measuring instrument, and both-way communication can be realized with host computer.
Compared with prior art, beneficial effect of the present invention is:
The present invention from the angle of system, the energy consumption of Integrated Measurement System entirety.Simultaneously, consider user's difference to the semen donors demand of refrigeration station in different time sections, and external environment condition change is for the impact of running efficiency of system, proposes the concept adopting electricity-saving unit consumption, namely in agreement Measuring Time section, the power consumption of specific refrigerating effect Suo Hao refrigeration station equipment is produced.The energy consumption measuring refrigeration station by this way science can reflect the energy-saving effect of realistic operation conditions more exactly, is convenient to carry out energy-saving effect assessment and accounting.
Accompanying drawing explanation
Fig. 1 is refrigeration station system schematic.
Fig. 2 is described electric unit consumption measuring instrument schematic diagram.
Each Reference numeral is: 1,3 be respectively back feed pipe temperature sensor, 2 is flow sensor, 4 is intelligent electric meter, and 5 is refrigeration unit, and 6 is refrigeration station equipment supply side, 7 is chilled water pump, 8 is cooling water pump, and 9 is cooling tower, and 10 is water knockout drum, 11 is water collector, and 12,13,14 are intelligent valve; 15 is electric unit consumption measuring instrument; 16 is display screen, and 17,18 are respectively supply and return water temperature measuring-signal interface, and 19 is flow measurement signal interface, and 20 is power consumption measuring-signal interface, and 21 is host computer communication interface.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
First it should be noted that, the present invention relates to the one application of computer technology in control technology field.In implementation procedure of the present invention, the application of software function module can be related to.Applicant thinks, as reading over application documents, accurate understanding is of the present invention realize principle and goal of the invention after, when in conjunction with existing known technology, those skilled in the art can use its software programming technical ability grasped to realize the present invention completely.Aforementioned software functional module comprises but is not limited to: electric unit consumption measurement module etc., this category of all genus that all the present patent application files are mentioned, applicant will not enumerate.
The electric unit consumption measurement mechanism of the ultra high efficiency refrigeration station in the present embodiment, its current consuming apparatus comprises refrigeration unit 5, chilled water pump 7, cooling water pump 8 and blower fan of cooling tower; The water supply line and water return pipeline of refrigeration unit are equipped with temperature sensor 3,1 respectively, the water supply line of refrigeration unit is equipped with flow sensor 3, in refrigeration station, equipment supply side is equipped with intelligent electric meter 4; This device also comprises electric unit consumption measuring instrument 15, electricity unit consumption measuring instrument 15 has display screen, supply water temperature measuring-signal interface 17, return water temperature measuring-signal interface 18, flow measurement signal interface 19, power consumption measuring-signal interface 20 and host computer communication interface 21, by cable be connected to respectively temperature sensor 3,1, flow sensor 2, intelligent electric meter 4 and host computer.The display screen energy displaying data in real-time of electricity unit consumption measuring instrument 15, and both-way communication can be realized with host computer.
In-built electrical unit consumption measurement module in electricity unit consumption measuring instrument 15, can obtain according to the refrigeration station operational factor recorded and following formulae discovery and produce power consumption needed for unit cold.
Based on aforementioned means, the measuring method of the electric unit consumption of ultra high efficiency refrigeration station, comprises the following steps:
(1) the following operational factor of refrigeration station is measured: supply water temperature T
g, return water temperature T
h, unit: DEG C; The flow L of chilled water in feed pipe or return pipe, unit: m
3/ h;
(2) representative a period of time is chosen at refrigeration station run duration, as electric unit consumption measurement time t, unit: h; Describedly representatively to refer to: in the selected time period, refrigeration station operation conditions is good, and can normal operating condition residing for the representative system most of the time;
(3) the accumulative cold Qd of refrigeration station within this period is obtained according to following formulae discovery, unit: degree or kWh:
Qd＝∫K·L·(T
h-T
g)dt(1)
Wherein K is hot water proportion and specific heat correction factor, and its numerical value is: 4.2 × 10
6, unit: J/ (m
3dEG C);
(3) obtain system in the identical period by refrigeration station equipment supply side intelligent electric meter reading and add up electricity Ed, unit: degree or kWh;
The electric unit consumption Eq of refrigeration station is obtained according to following formulae discovery:
Eq=Ed/Qd(2)
Namely electricity unit consumption Eq produces power consumption needed for unit cold, unit: kWh/kWh.
What more than enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be had.All distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should think protection scope of the present invention.
Claims (2)
1. the electric unit consumption measuring method of ultra high efficiency refrigeration station, is characterized in that, comprise the following steps:
(1) the following operational factor of refrigeration station is measured: supply water temperature T
g, return water temperature T
h, unit: DEG C; The flow L of chilled water in feed pipe or return pipe, unit: m
3/ h;
(2) representative a period of time is chosen at refrigeration station run duration, as electric unit consumption measurement time t, unit: h; Describedly representatively to refer to: in the selected time period, refrigeration station operation conditions is good, and can normal operating condition residing for the representative system most of the time;
(3) the accumulative cold Qd of refrigeration station within this period is obtained according to following formulae discovery, unit: degree or kWh:
Qd＝∫K·L·(T
h-T
g)dt(1)
Wherein K is hot water proportion and specific heat correction factor, and its numerical value is: 4.2 × 10
6, unit: J/ (m
3dEG C);
(3) obtain system in the identical period by refrigeration station equipment supply side intelligent electric meter reading and add up electricity Ed, unit: degree or kWh;
The electric unit consumption Eq of refrigeration station is obtained according to following formulae discovery:
Eq＝Ed/Qd(2)
Namely electricity unit consumption Eq produces power consumption needed for unit cold, unit: kWh/kWh;
Described method realizes based on the electric unit consumption measurement mechanism of ultra high efficiency refrigeration station, and the current consuming apparatus of this measurement mechanism comprises refrigeration unit, chilled water pump, cooling water pump and blower fan of cooling tower; The water supply line and water return pipeline of refrigeration unit are equipped with temperature sensor respectively, and the water supply line or water return pipeline of refrigeration unit are equipped with flow sensor, and in refrigeration station, equipment supply side is equipped with intelligent electric meter; This device also comprises electric unit consumption measuring instrument, electricity unit consumption measuring instrument has display screen, supply water temperature measuring-signal interface, return water temperature measuring-signal interface, flow measurement signal interface, power consumption measuring-signal interface and host computer communication interface, is connected to each temperature sensor, flow sensor, intelligent electric meter and host computer respectively by cable;
In-built electrical unit consumption measurement module in described electric unit consumption measuring instrument, can obtain according to the refrigeration station operational factor recorded and following formulae discovery and produce power consumption needed for unit cold:
Qd＝∫K·L·(T
h-T
g)dt(1)
Eq＝Ed/Qd(2)
In formula, each symbol is: supply water temperature T
g, return water temperature T
h, unit: DEG C; The flow L of chilled water in feed pipe or return pipe, unit: m
3/ h; Representative a period of time is chosen at refrigeration station run duration, as electric unit consumption measurement time t, unit: h; Describedly representatively to refer to: the good and normal operating condition that can represent residing for its most of the time of refrigeration station operation conditions in the selected time period; The accumulative cold Qd of refrigeration station within this period, unit: degree or kWh:K are hot water proportion and specific heat correction factor, and its numerical value is: 4.2 × 10
6, unit: J/ (m
3dEG C); Obtain system in the identical period by refrigeration station equipment supply side intelligent electric meter reading and add up electricity Ed, unit: degree or kWh; The electric unit consumption Eq of refrigeration station, namely produces power consumption needed for unit cold, unit: kWh/kWh.
2. method according to claim 1, is characterized in that, the display screen energy displaying data in real-time of described electric unit consumption measuring instrument, and can realize both-way communication with host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656934.6A CN103615866B (en) | 2013-12-06 | 2013-12-06 | The electric unit consumption measuring method of ultra high efficiency refrigeration station and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310656934.6A CN103615866B (en) | 2013-12-06 | 2013-12-06 | The electric unit consumption measuring method of ultra high efficiency refrigeration station and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615866A CN103615866A (en) | 2014-03-05 |
| CN103615866B true CN103615866B (en) | 2015-12-30 |
Family
ID=50166574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310656934.6A Active CN103615866B (en) | 2013-12-06 | 2013-12-06 | The electric unit consumption measuring method of ultra high efficiency refrigeration station and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615866B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116723B (en) * | 2015-06-26 | 2017-12-01 | 上海电器科学研究院 | A kind of energy consumption for requirement response cuts down assessment algorithm |
| 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 |
| CN112611141B (en) * | 2020-12-24 | 2021-11-02 | 上海能誉科技股份有限公司 | Energy-saving control method and system for refrigeration host and computer readable storage medium |
| CN115507613B (en) * | 2021-06-22 | 2024-03-12 | 青岛海尔电冰箱有限公司 | Control method of ice making device and ice making device |
| CN113803642B (en) * | 2021-09-18 | 2023-07-07 | 深圳市富能新能源科技有限公司 | Compressed gas distribution method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6975926B2 (en) * | 2002-11-08 | 2005-12-13 | Usa Technologies, Inc. | Method and apparatus for power management control of a compressor-based appliance that reduces electrical power consumption of an appliance |
| CN102654339A (en) * | 2012-05-11 | 2012-09-05 | 彭渊博 | Cloud refrigeration method and system |
| CN202694121U (en) * | 2011-08-19 | 2013-01-23 | 北京佩尔优科技有限公司 | Data acquisition system for energy storage air conditioner |
-
2013
- 2013-12-06 CN CN201310656934.6A patent/CN103615866B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6975926B2 (en) * | 2002-11-08 | 2005-12-13 | Usa Technologies, Inc. | Method and apparatus for power management control of a compressor-based appliance that reduces electrical power consumption of an appliance |
| CN202694121U (en) * | 2011-08-19 | 2013-01-23 | 北京佩尔优科技有限公司 | Data acquisition system for energy storage air conditioner |
| CN102654339A (en) * | 2012-05-11 | 2012-09-05 | 彭渊博 | Cloud refrigeration method and system |
Non-Patent Citations (2)
| Title |
|---|
| 一种集中空调冷量计费方法;邢丽娟，杨世忠;《暖通空调》;20070331;第37卷(第3期);正文第1~4页，图2 * |
| 空调冷源***检测与冷量计量方法;李德英，郝斌，高春城;《北京建筑工程学院学报》;20030331;第19卷(第1期);正文第1~4页，图1、2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103615866A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615866B (en) | The electric unit consumption measuring method of ultra high efficiency refrigeration station and device | |
| CN105465946B (en) | A kind of method and system of central air-conditioning refrigeration plant energy consumption analysis | |
| CN109754195B (en) | Annual performance detection method of ground source heat pump system | |
| CN102661758B (en) | Movable and portable energy consumption detector | |
| CN104456852A (en) | System and method for monitoring and evaluating operation of concentrated air conditioner refrigerating station | |
| CN102779364B (en) | A kind of central air conditioner timer and charge system | |
| CN103471654A (en) | Self-power-supply water flow monitoring system | |
| CN201355310Y (en) | Energy efficiency ratio measuring instrument of central air conditioning system of ground source heat pump | |
| CN202383544U (en) | Temperature and humidity monitoring device for electricity metering tank | |
| CN203478510U (en) | Center air conditioner energy-saving PLC | |
| CN204270400U (en) | A kind of intellectual water meter electronic module | |
| CN101476780B (en) | Hot water control system with heat source conversion | |
| CN206178407U (en) | Wireless IC -card gas table controller based on spread spectrum technic | |
| CN102155999A (en) | Real-time wireless communication industrial thermal resistor temperature transmitter | |
| CN204438420U (en) | The monitoring and evaluation system that central air conditioning refrigerating plant room runs | |
| CN204924523U (en) | Air compressor machine energy consumption evaluation system | |
| CN204203968U (en) | The online Energy Efficiency Analysis device of ventilation blower | |
| TWM579792U (en) | Smart electricity pricing system | |
| CN204461651U (en) | A kind of portable air-conditioning refrigeration (heat) amount detector | |
| CN203870788U (en) | Heat data acquisition device based on MBUS bus | |
| CN202583841U (en) | Remote control type energy monitoring system | |
| CN203824600U (en) | Novel water meter | |
| CN202421878U (en) | Energy measuring and monitoring device for commercial-residential mansion | |
| CN203190522U (en) | Heat energy temperature control system | |
| CN105206018A (en) | Automatic meter reading system based on GSM network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |