CN100595540C - Refrigerating capacity testing method for air cooling condensation type refrigerating fan - Google Patents

Refrigerating capacity testing method for air cooling condensation type refrigerating fan Download PDF

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Publication number
CN100595540C
CN100595540C CN200410005619A CN200410005619A CN100595540C CN 100595540 C CN100595540 C CN 100595540C CN 200410005619 A CN200410005619 A CN 200410005619A CN 200410005619 A CN200410005619 A CN 200410005619A CN 100595540 C CN100595540 C CN 100595540C
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CN
China
Prior art keywords
refrigeration
air conditioning
fan
transducer air
temperature
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Expired - Fee Related
Application number
CN200410005619A
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Chinese (zh)
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CN1654941A (en
Inventor
梁嘉麟
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China Jiliang University
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China Jiliang University
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Priority to CN200410005619A priority Critical patent/CN100595540C/en
Publication of CN1654941A publication Critical patent/CN1654941A/en
Application granted granted Critical
Publication of CN100595540C publication Critical patent/CN100595540C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A refrigerating output test device and an applied method for a condenser gas-cooling fan is composed of a small test chamber and a conversion air conditioner for testing the refrigerating output. Themethod includes taking the power consumption of the conversion air conditioner as the base to calculate the refrigerating output in the period of mutual counteraction of cool and heat.

Description

A kind of refrigeration capacity test method of air cooling condensing refrigeration fan
Technical field:
The present invention relates to a kind of refrigeration capacity test method of refrigeration fan.
Background technology:
At present, the water-cooled air conditioner that occurs on the market is the room air conditioner that allows the cooling of whole room or heat up.
A kind of air-cooled extra small power air conditioner for unlimited local little space service is disclosed first by CN1409055A, this air conditioner is not in order to allow the cooling of whole room, but brushing the disposable cold wind of process refrigeration facing to human body, its condenser adopts air cooling way.Because its condensed waste heat air can be discharged on the spot, adopt conventional Testing Method for Air Conditioner Cooling Capacity to be difficult to it is implemented the test of refrigerating capacity.
The cooling and warming that CN 1399105A discloses the air-cooled extra small power air conditioner of serving in a kind of local little space of closing on the present invention for opening wide measures the examination scheme.Although it can implement the test of refrigerating capacity to CN1409055A class technical products, certain enforcement difficulty is arranged.
Summary of the invention:
The present invention's purpose: on the basis of CN 1399105A technology, by further simplification facility with set up corresponding data measuring method, solve above-mentioned " certain enforcement difficulty is arranged " problem.
In order to realize the present invention's purpose, intend adopting following technology:
Facility of the present invention:
At least comprise a test cabinet that reflects environment temperature, also comprise the indoor set of the transducer air conditioning that wherein is provided with, cold wind point for measuring temperature, average indoor temperature point for measuring temperature.---described transducer air conditioning is meant any refrigeration plant device that includes frequency-changeable compressor.
Using method of the present invention, it comprises following step:
One. the refrigerated dehumidification operating mode of utilizing transducer air conditioning by its indoor set to dehumidifying in the test cabinet, till no evaporator condensate is separated out.---purpose is: allow tested refrigeration fan no condensate water in whole test process separate out, dispense owing to condensate water occurring and give the test trouble that refrigerating capacity is brought.
Two. start tested refrigeration fan, meanwhile, start transducer air conditioning, and the setting (being in the cooling condition state) of the indoor set temperature by regulating its transducer air conditioning, make the temperature stabilization of testing the average indoor temperature point for measuring temperature at T 1Above (can get 35 ℃ environment temperature).
Three. for the tested refrigeration fan in the described test cabinet (P), as its condensation power N 5Be taken as refrigeration work consumption N 11.4 times of empirical datas the time, the refrigeration work consumption N of tested refrigeration fan then 1For:
N 1=2.5(EN 2-N 3-N 4)
Wherein:
N 2: the power input of the transducer air conditioning that need measure
E: the refrigeration efficiency ratio of known transducer air conditioning
N 3: the power (heating character) of known transducer air conditioning indoor machine fan
N 4: the thermal power of electric fan (heating character) in the known refrigeration fan
Characteristics of the present invention:
Simple in structure, small and exquisite, easy to use, reliable.---the correlation parameter of metering is seldom.
Description of drawings:
Figure has illustrated a principle type embodiment of facility of the present invention.
P: the outside is surrounded by the test cabinet of heat insulation layer; B: tested air-cooling refrigeration blower fan; 1: the off-premises station of transducer air conditioning; 2: the indoor set of transducer air conditioning; 3: the cold wind point for measuring temperature; 4: evaporator; 5: the point for measuring temperature of representing average indoor temperature; 6: centrifugal fan; 7: biparting fan; 8: compressor; 9: condenser.
Embodiment:
Be not difficult to find out, mainly constituted quite simple test facilities of the present invention and method thereof by test cabinet P and transducer air conditioning.Why it can set up, mainly based on the derivation of following heating power matheematical equation.
In process to refrigeration fan B test refrigerating capacity, because the condensation power in the refrigeration system of refrigeration fan B is greater than wherein refrigeration work consumption---press from " lgp--i " of reflection process of refrigerastion to contain the figure, just can find out significantly: the condensation heating capacity (power) of cold-producing medium equal it evaporation absorption refrigeration amount (power) and compressor 8 to its both vapor compression heating capacity (power) sum.---in addition, blower fan 6 and 7 all heats, and therefore, when adopting the present invention to test refrigerating capacity, the indoor set 2 of transducer air conditioning must be set in the cooling condition state, can make that like this refrigeration and the heating capacity among the test cabinet P reaches balance.
The balance key element of " cold and hot " two aspects that exist in the following analytical test chamber P:
1. will have of refrigeration aspect:
The refrigeration work consumption of refrigeration fan B: N 1(requiring the unknown data of test)
The power input of transducer air conditioning: N 2(data that can directly measure in the test process)
The refrigeration efficiency ratio of transducer air conditioning: E (given data)
The refrigeration work consumption of transducer air conditioning: EN 2
Its refrigeration total amount is: N 1+ EN 2
2. heat will have of aspect:
The thermal power of fan 6: N in the convertible frequency air-conditioner air conditioner indoor machine 2 3(given data)
The thermal power of biparting fan 7: N 4(given data)
Condensation power: N generates heat among the refrigeration fan B 5(in derivation, occur but needn't measure unknown data)
In same Refrigeration Engineering system, can set up following quantitative rule-of-thumb relation:
N 5(condensation power)=KN 1=1.4N 1(refrigeration work consumption) but---------------K value: 1.30~1.5 its heat total amount and be: N 3+ N 4+ N 5=N 3+ N 4+ 1.4N 1
3. comprehensive above-mentioned refrigeration and the factor of heating can be set up following thermodynamic equilibrium equation:
N 1+EN 2=N 3+N 4+1.4N 1
Through obtaining the air-cooled refrigeration work consumption N of tested air-cooling refrigeration blower fan B after the arrangement 1:
N 1=2.5(EN 2-N 3-N 4)
In the above-mentioned formula to the power input N of transducer air conditioning 2(consumed power) parameter can measure, and other limited Several Parameters all is known.
At this moment, high temperature (the desirable T that is reflected at medial temperature point for measuring temperature 5 1Be 35 ℃) the cold wind temperature of brushing by refrigeration fan B under the environmental baseline, can be used as reference data and in cold wind point for measuring temperature 3, measure.
Clearly: in the process of above-mentioned analytical derivation, at all with regard to the problem of the condensate water that do not relate to evaporator 4, therefore, when adopting the technology of the present invention test refrigerating capacity, preliminary work is before its requisite survey: the air in the test cabinet P is carried out dehumidification treatments.
Here illustrate in passing:
Any testing scheme that is made of test facilities and method of testing thereof all has the problem of individual measuring accuracy, the present invention also has, determining of the measuring accuracy of the present invention or the test correction factor of taking, the standard model machine that can adopt known refrigerating capacity closes property testing and obtained afterwards by carrying out the school in the present invention.

Claims (1)

1. the refrigeration capacity test method of an air cooling condensing refrigeration fan,
It comprises on facility:
The indoor set (2) of the transducer air conditioning of a test cabinet (P) and adapted, and cold wind point for measuring temperature (3) and medial temperature point for measuring temperature (5);
It comprises on testing procedure:
One. the refrigerated dehumidification operating mode of utilizing transducer air conditioning dehumidifies to test cabinet (P) by its indoor set (2), till no condensate water is separated out;
It is characterized in that:
Two. start tested refrigeration fan (B), meanwhile, start transducer air conditioning, and the setting of indoor set (2) temperature by regulating its transducer air conditioning, make the temperature stabilization of average indoor temperature point for measuring temperature (5) at T 1Above;
Three. for the tested refrigeration fan in the described test cabinet (P), as its condensation power N 5Be taken as refrigeration work consumption N 11.4 times of empirical datas the time, the refrigeration work consumption N of tested refrigeration fan then 1For:
N 1=2.5(EN 2-N 3-N 4)
Wherein:
N 2: the power input of the transducer air conditioning that measures;
E: the refrigeration efficiency ratio of known transducer air conditioning;
N 3: the power of known transducer air conditioning indoor machine fan;
N 4: the thermal power of electric fan in the known refrigeration fan.
CN200410005619A 2004-02-15 2004-02-15 Refrigerating capacity testing method for air cooling condensation type refrigerating fan Expired - Fee Related CN100595540C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200410005619A CN100595540C (en) 2004-02-15 2004-02-15 Refrigerating capacity testing method for air cooling condensation type refrigerating fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200410005619A CN100595540C (en) 2004-02-15 2004-02-15 Refrigerating capacity testing method for air cooling condensation type refrigerating fan

Publications (2)

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CN1654941A CN1654941A (en) 2005-08-17
CN100595540C true CN100595540C (en) 2010-03-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104155136A (en) * 2014-08-21 2014-11-19 重庆大学 Air cooler refrigerating capacity measuring apparatus
CN105445047B (en) * 2015-11-12 2018-09-18 珠海格力电器股份有限公司 The detection method and device of dehumidifier moisture removal
CN110779748B (en) * 2019-10-30 2021-06-18 合肥通用机械研究院有限公司 Multi-temperature-zone transport refrigeration unit performance test device and test method

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Address after: Postcode of China Jiliang University, Xiasha Higher Education Park, Hangzhou, Zhejiang Province, China: 310018

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