CN103048150A - Odor-removal inspection method of refrigerator - Google Patents
Odor-removal inspection method of refrigerator Download PDFInfo
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- CN103048150A CN103048150A CN2012105160722A CN201210516072A CN103048150A CN 103048150 A CN103048150 A CN 103048150A CN 2012105160722 A CN2012105160722 A CN 2012105160722A CN 201210516072 A CN201210516072 A CN 201210516072A CN 103048150 A CN103048150 A CN 103048150A
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- foreign flavor
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- unusual smell
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Abstract
The invention discloses an odor-removal inspection method of a refrigerator. The method comprises the following steps of tightly closing a refrigerator door, and delivering an odor gas for inspection into a cavity of the refrigerator through a gas inlet; closing the gas inlet, and enabling the gas in the cavity to circulate and flow, so as to uniformly distribute the odor gas in the cavity; after a gas flow formed by the circulating and flowing of the gas is stabilized, sampling the odor gas in the cavity of the refrigerator through a gas sampling port, and recording the sampling result as an initial concentration C1 of the odor gas; starting a power source to enable the refrigerator to normally run; after the refrigerator normally runs with the preset inspection time, sampling the odor gas in the cavity of the refrigerator through the gas sampling port, and recording the sampling result as a stop concentration C2 of the odor gas; and according to a formula, calculating an adsorption rate A for evaluating the odor-removal effect of the refrigerator. The odor-removal inspection method has the advantages that the requirements of the relevant state requirements are met, the data accuracy is high, and the reproducibility is high.
Description
Technical field
The present invention relates to a kind of method of inspection of refrigerator serviceability, specifically a kind of method of inspection that eliminates the unusual smell of refrigerator.
Background technology
Enhancing along with the awareness of environment protection and health, have refrigerator antibiotic, degerming functions and day by day be subject to consumer's favor, government has put into effect some detections authentication state compulsion standards for the correlation function of refrigerator and similar applications electrical equipment, and the effect that eliminates the unusual smell of check refrigerator then is important detection authentication item wherein.
Refrigerator is removed in refrigerator inner cavity the peculiar smell that metabolic product or storing products by bacterium, fungi volatilize by its peculiar smell removal device, adopts adsorption rate, or is called the gas resolution ratio to its effect evaluation that eliminates the unusual smell.To the eliminate the unusual smell check of effect of refrigerator, general adopt gas with foreign flavor in methyl mercaptan or the trimethylamine gas analog electrical refrigerator inner cavity to come the refrigerator test that eliminates the unusual smell, methyl mercaptan is a kind of colourless gas with unhappy smell, trimethylamine then has fish raw meat foul odour, namely be the concentration that draws refrigerator operation front and back gas with foreign flavor by sampling in the prior art, draw to estimate the eliminate the unusual smell adsorption rate of effect of refrigerator, both realized easily collection analysis, also can be with the effect that eliminates the unusual smell of sense of smell direct feeling refrigerator.
The refrigerator of the prior art method of inspection that eliminates the unusual smell has the following disadvantages:
The first and since be methyl mercaptan gas or the density of trimethylamine gas all greater than air, cause gas with foreign flavor always to be deposited in the bottom of refrigerator inner chamber, make detect data can't be comprehensively and science reflect the effect that eliminates the unusual smell of refrigerator;
The second, the existing method of inspection that eliminates the unusual smell does not all meet the relevant regulations of GB 21551.4-2010 " antibiotic, the degerming of family expenses and similar applications electrical equipment, the specific (special) requirements of purification function refrigerator " national standard.
Summary of the invention
The method of inspection that eliminates the unusual smell that the purpose of this invention is to provide a kind of high accuracy and reproducible refrigerator has the high refrigerator validity check quality that eliminates the unusual smell.
The objective of the invention is to realize by following technical measures:
A kind of method of inspection that eliminates the unusual smell of refrigerator is characterized in that the described method of inspection may further comprise the steps:
(S1) the door body of refrigerator is closed, check is input to the inner chamber of refrigerator with the air intake opening of gas with foreign flavor from electric refrigerator housing body;
(S2) close the described air intake opening of step (S1), the gas circulation in the refrigerator inner chamber is flowed, so that described gas with foreign flavor is evenly distributed in the inner chamber of refrigerator;
(S3) behind the steady air current that the described gas that circulates of step (S2) forms, the gas production mouth from electric refrigerator housing body is sampled to the gas with foreign flavor the refrigerator inner chamber, and sampled result is recorded as the initial concentration C of gas with foreign flavor
1
(S4) power-on is normally moved refrigerator;
(S5) after the proving time that the normal operation of refrigerator is preset, the gas production mouth from electric refrigerator housing body is sampled to the gas with foreign flavor the refrigerator inner chamber, and sampled result is recorded as the termination concentration C of gas with foreign flavor
2
(S6) according to formula
Calculate for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator.
As a kind of improvement of the present invention, the described method that eliminates the unusual smell is further comprising the steps of:
Step (S4) is described make the normal operation of refrigerator in, make relative humidity in the refrigerator inner chamber more than 60%.
Validity in order to ensure sampling, further improve the eliminate the unusual smell quality inspection of validity check of refrigerator, as a kind of improvement of the present invention, gas production mouth on the described electric refrigerator housing body comprises upper gas production mouth and the lower gas production mouth of vertically arranging, calculate respectively from the adsorption rate of the gas with foreign flavor of upper gas production mouth and lower gas production mouth sampling by described step (S6), and draw after averaging for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator.
As one embodiment of the present invention, the stabilization judgment method of air-flow is in the described step (S3): from the concentration difference of the gas with foreign flavor of described up-sampling mouth and the sampling of down-sampling mouth less than 10%.
As one embodiment of the present invention, described gas with foreign flavor is methyl mercaptan or trimethylamine gas.
As one embodiment of the present invention, the described step that gas with foreign flavor is sampled is as follows:
(S7-1) take phosphoric acid-acetone soln of 0.02mol/L volume is coated with the stain post-drying as the inside surface of the gas production bottle of 1L, and the gas in the gas production bottle is discharged so that the vacuum tightness of gas production bottle approaches-1.0 * 105Pa;
(S7-2) described gas with foreign flavor is filled with in the described gas production bottle of step (S7-1), makes the air pressure of gas production bottle return back to normal pressure, and gas production bottle lucifuge is deposited;
(S7-3) in 24 hours, use syringe from the described gas production bottle of step (S7-2), to extract 1mL to 2mL gas with foreign flavor, and inject gas chromatograph-mass spectrometer and carry out quantitative test with external standard method;
(S7-4) result when the described quantitative test of step (S7-3) is: when the concentration of gas with foreign flavor is lower than the gas chromatograph-mass spectrometer detection limit, use concentration tube under with the cryogenic conditions of liquid oxygen as cold-producing medium, the described gas with foreign flavor of step (S7-2) is concentrated, and repeating step (S7-3) and step (S7-4) are carried out quantitative test to gas with foreign flavor.
As one embodiment of the present invention, in the described step (S1), the concentration of gas with foreign flavor is at 2mg/m in the refrigerator inner chamber
3To 12mg/m
3Between; Step (S5) described proving time is 2 hours, and the adsorption rate A that calculates in step (S6) judges that 90% when above the effect that eliminates the unusual smell of refrigerator is qualified.
Compared with prior art, the present invention has following beneficial effect:
Because the present invention is by arranging upper gas production mouth and lower gas production mouth, gas circulation in the refrigerator inner chamber is flowed and behind the steady air current that the gas that circulates forms, again gas with foreign flavor is sampled, calculate for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator, guaranteed the validity of gas with foreign flavor sampling, therefore the method for inspection of the present invention meets the requirement of relative national standards, from sampling, circulation and condition are controlled these three committed step standards checkout procedure that eliminates the unusual smell, has the data accuracy height, the characteristics that reappearance is strong, the energy objective appraisal goes out the serviceability that eliminates the unusual smell of refrigerator.
Description of drawings
The present invention is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the eliminate the unusual smell FB(flow block) of the method for inspection of the present invention;
Fig. 2 is the present invention's one of installing synoptic diagram of inspection machine in the method for inspection that eliminates the unusual smell;
Fig. 3 be the present invention eliminate the unusual smell inspection machine in the method for inspection the installing synoptic diagram two.
Embodiment
As shown in Figures 1 to 3, the method for inspection that eliminates the unusual smell of refrigerator of the present invention may further comprise the steps:
(S1) electric refrigerator housing body to be tested arrange air intake opening 1, on gas production mouth 2 and lower gas production mouth 3, air circulation device 5 and damping device 6 are installed in the inner chamber of refrigerator, wherein go up gas production mouth 2 and lower gas production mouth 3 is vertically arranged; Make refrigerator the door body close, with methyl mercaptan gas as the check use gas with foreign flavor, its air intake opening 1 from electric refrigerator housing body is input to the inner chamber of refrigerator, and so that in the refrigerator inner chamber concentration of gas with foreign flavor at 2mg/m
3To 12mg/m
3Between;
(S2) close the described air intake opening 1 of step (S1), start air circulation device 5, the gas circulation in the refrigerator inner chamber is flowed, so that described gas with foreign flavor is evenly distributed in the inner chamber of refrigerator;
(S3) behind the steady air current that the described gas that circulates of step (S2) forms, namely from the concentration difference of the gas with foreign flavor of described up-sampling mouth 2 and down-sampling mouth 3 samplings less than 10% the time, gas with foreign flavor upper gas production mouth 2 from electric refrigerator housing body and 3 pairs of refrigerator inner chambers of lower gas production mouth is sampled respectively, and sampled result is recorded as respectively the gas with foreign flavor initial concentration C of upper gas production mouth 2 and lower gas production mouth 3
1
(S4) power-on is normally moved refrigerator, starts simultaneously damping device 6, and the relative humidity in the refrigerator inner chamber is remained on more than 60%;
(S5) after refrigerator normally moves 2 hours, gas with foreign flavor upper gas production mouth 2 from electric refrigerator housing body and 3 pairs of refrigerator inner chambers of lower gas production mouth is sampled respectively, and sampled result is recorded as respectively the gas with foreign flavor termination concentration C of upper gas production mouth 2 and lower gas production mouth 3
2
(S6) according to formula
Calculate respectively the gas with foreign flavor adsorption rate of gas production mouth 2 and lower gas production mouth 3, and draw after averaging for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator; When adsorption rate A 90% when above, judge that then the effect that eliminates the unusual smell of refrigerator is qualified.
Wherein, the above-mentioned step that gas with foreign flavor is sampled is as follows:
(S7-1) take phosphoric acid-acetone soln of 0.02mol/L volume is coated with the stain post-drying as the inside surface of the gas production bottle 4 of 1L, and the gases in the gas production bottle 4 are discharged so that the vacuum tightness of gas production bottle 4 approaches-1.0 * 105Pa;
(S7-2) the described gas production bottle 4 of two steps (S7-1) is communicated with upper gas production mouth 2 and lower gas production mouth 3 by conduit respectively, gas with foreign flavor is filled with in two gas production bottles 4, make the air pressure of gas production bottle 4 return back to normal pressure, and gas production bottle 4 lucifuges are deposited;
(S7-3) in 24 hours, use syringe from the described gas production bottle 4 of step (S7-2), to extract 1mL to 2mL gas with foreign flavor, and inject gas chromatograph-mass spectrometer and carry out quantitative test with external standard method;
(S7-4) result when the described quantitative test of step (S7-3) is: when the concentration of gas with foreign flavor is lower than the gas chromatograph-mass spectrometer detection limit, use concentration tube under with the cryogenic conditions of liquid oxygen as cold-producing medium, the described gas with foreign flavor of step (S7-2) is concentrated, and repeating step (S7-3) and step (S7-4) are carried out quantitative test to gas with foreign flavor.
The present invention does not limit to and above-mentioned embodiment; according to foregoing; ordinary skill knowledge and customary means according to this area; do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite; the present invention can also make equivalent modifications, replacement or the change of other various ways; as using gas with foreign flavor with trimethylamine gas as check, all drop among protection scope of the present invention.
Claims (7)
1. the method for inspection that eliminates the unusual smell of a refrigerator, it is characterized in that: the described method of inspection may further comprise the steps:
(S1) the door body of refrigerator is closed, check is input to the inner chamber of refrigerator with the air intake opening (1) of gas with foreign flavor from electric refrigerator housing body;
(S2) close the described air intake opening of step (S1) (1), the gas circulation in the refrigerator inner chamber is flowed, so that described gas with foreign flavor is evenly distributed in the inner chamber of refrigerator;
(S3) behind the steady air current that the described gas that circulates of step (S2) forms, the gas production mouth from electric refrigerator housing body is sampled to the gas with foreign flavor the refrigerator inner chamber, and sampled result is recorded as the initial concentration C of gas with foreign flavor
1
(S4) power-on is normally moved refrigerator;
(S5) after the proving time that the normal operation of refrigerator is preset, the gas production mouth from electric refrigerator housing body is sampled to the gas with foreign flavor the refrigerator inner chamber, and sampled result is recorded as the termination concentration C of gas with foreign flavor
2
(S6) according to formula
Calculate for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator.
2. the method for inspection that eliminates the unusual smell of refrigerator according to claim 1, it is characterized in that: the described method that eliminates the unusual smell is further comprising the steps of:
Step (S4) is described make the normal operation of refrigerator in, make relative humidity in the refrigerator inner chamber more than 60%.
3. the method for inspection that eliminates the unusual smell of refrigerator according to claim 1 and 2, it is characterized in that: the gas production mouth on the described electric refrigerator housing body comprises upper gas production mouth (2) and the lower gas production mouth (3) of vertically arranging, calculate respectively from the adsorption rate of the gas with foreign flavor of upper gas production mouth (2) and lower gas production mouth (3) sampling by described step (S6), and draw after averaging for estimating the eliminate the unusual smell adsorption rate A of effect of refrigerator.
4. the method for inspection that eliminates the unusual smell of refrigerator according to claim 3 is characterized in that: the stabilization judgment method of air-flow is in the described step (S3): the concentration difference of the gas with foreign flavor of sampling from described up-sampling mouth (2) and down-sampling mouth (3) is less than 10%.
5. the method for inspection that eliminates the unusual smell of refrigerator according to claim 4, it is characterized in that: described gas with foreign flavor is methyl mercaptan or trimethylamine gas.
6. the method for inspection that eliminates the unusual smell of refrigerator according to claim 5, it is characterized in that: the described step that gas with foreign flavor is sampled is as follows:
(S7-1) take phosphoric acid-acetone soln of 0.02mol/L volume is coated with the stain post-drying as the inside surface of the gas production bottle (4) of 1L, and the gas in the gas production bottle (4) is discharged so that the vacuum tightness of gas production bottle (4) approaches-1.0 * 105Pa;
(S7-2) described gas with foreign flavor is filled with in the described gas production bottle of step (S7-1) (4), makes the air pressure of gas production bottle (4) return back to normal pressure, and gas production bottle (4) lucifuge is deposited;
(S7-3) in 24 hours, use syringe from the described gas production bottle of step (S7-2) (4), to extract 1mL to 2mL gas with foreign flavor, and inject gas chromatograph-mass spectrometer and carry out quantitative test with external standard method;
(S7-4) result when the described quantitative test of step (S7-3) is: when the concentration of gas with foreign flavor is lower than the gas chromatograph-mass spectrometer detection limit, use concentration tube under with the cryogenic conditions of liquid oxygen as cold-producing medium, the described gas with foreign flavor of step (S7-2) is concentrated, and repeating step (S7-3) and step (S7-4) are carried out quantitative test to gas with foreign flavor.
7. the method for inspection that eliminates the unusual smell of refrigerator according to claim 6, it is characterized in that: in the described step (S1), the concentration of gas with foreign flavor is at 2mg/m in the refrigerator inner chamber
3To 12mg/m
3Between; Step (S5) described proving time is 2 hours, and the adsorption rate A that calculates in step (S6) judges that 90% when above the effect that eliminates the unusual smell of refrigerator is qualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210516072.2A CN103048150B (en) | 2012-12-05 | 2012-12-05 | Odor-removal inspection method of refrigerator |
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|---|---|---|---|
| CN201210516072.2A CN103048150B (en) | 2012-12-05 | 2012-12-05 | Odor-removal inspection method of refrigerator |
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| CN103048150B CN103048150B (en) | 2015-06-17 |
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Cited By (4)
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| CN104049064A (en) * | 2014-05-16 | 2014-09-17 | 湖南文象炭基环保材料股份有限公司 | Method for comparison of adsorption performance of materials by flavor removal effect |
| CN106016956A (en) * | 2016-06-20 | 2016-10-12 | 青岛海尔股份有限公司 | Control method of refrigerator |
| CN110361236A (en) * | 2019-08-13 | 2019-10-22 | 南京师范大学 | A kind of the sampling evaluating apparatus and evaluation method of pesticide industry place volatility smell substance |
| CN110361292A (en) * | 2019-08-12 | 2019-10-22 | 南京师范大学 | A kind of evaluating apparatus and evaluation method of pesticide industry place smell substance covering material closed performance |
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| CN103048150B (en) | 2015-06-17 |
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Effective date of registration: 20171227 Address after: 314000 Business Garden No. 3, Jiaxing headquarters, Nanhu District, Jiaxing, Zhejiang Patentee after: JIAXING WEIKAI DETECTION TECHNOLOGY CO., LTD. Address before: 510663 Guangdong city of Guangzhou province Luogang District Tiantai Road No. 3 Patentee before: Vkan Certification and Testing Co., Ltd. |
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