CN113447613A - Method for testing and evaluating explosion-proof grade of case - Google Patents
Method for testing and evaluating explosion-proof grade of case Download PDFInfo
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- CN113447613A CN113447613A CN202110664430.3A CN202110664430A CN113447613A CN 113447613 A CN113447613 A CN 113447613A CN 202110664430 A CN202110664430 A CN 202110664430A CN 113447613 A CN113447613 A CN 113447613A
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004880 explosion Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000008520 organization Effects 0.000 claims abstract description 11
- 238000011156 evaluation Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000002360 explosive Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 4
- 231100001261 hazardous Toxicity 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a test evaluation method for explosion-proof grade of a case, which comprises the following steps: s1, selecting the type of the case, determining the normal installation effect of the case, and ensuring the stable and normal connection of the bottom end of the case to be stable; s2, placing the case in a testing device, placing a pressurizing mechanism in the case, starting the testing device, and carrying out normal testing; s3, in the test, the explosion video is watched, and the explosion result is identified; s4, after the identification is completed, manually determining the explosion-proof grade, analyzing the explosion-proof grade and drawing up a grade analysis result; s5, identification is carried out through organization, and the method is published after signature and stamping, different judgment standards can be provided for different cases, unstable cases of different types in the cases can be classified, and classification can be carried out according to use under different environments, so that use of a specific case in a specific environment is determined, and a normal explosion environment is guaranteed.
Description
Technical Field
The invention relates to the technical field of test evaluation, in particular to a test evaluation method for the explosion-proof grade of a case.
Background
The computer case is used as a part of computer accessories, has the main function of placing and fixing the computer accessories, plays a role in supporting and protecting, and has the important function of shielding electromagnetic radiation;
however, the existing test and evaluation method for the explosion-proof grade of the chassis is not comprehensive, data is prone to be inaccurate, and stability of the data cannot be determined according to different environments, so that the phenomenon that judgment of the explosion-proof grade is wrong or inaccurate is caused.
Disclosure of Invention
The invention provides a method for testing and evaluating explosion-proof grade of a chassis, which can effectively solve the problems that the existing method for testing and evaluating the explosion-proof grade of the chassis in the background technology is not comprehensive, is easy to cause inaccuracy of data, and cannot determine the stability of the data according to different environments, thereby causing the phenomenon of wrong or inaccurate judgment of the explosion-proof grade.
In order to achieve the purpose, the invention provides the following technical scheme: a test evaluation method for explosion-proof grade of a case comprises the following steps:
s1, selecting the type of the case, determining the normal installation effect of the case, and ensuring the stable and normal connection of the bottom end of the case to be stable;
s2, placing the case in a testing device, placing a pressurizing mechanism in the case, starting the testing device, and carrying out normal testing;
s3, in the test, the explosion video is watched, and the explosion result is identified;
s4, after the identification is completed, manually determining the explosion-proof grade, analyzing the explosion-proof grade and drawing up a grade analysis result;
and S5, identifying through organization, signing and stamping, and then publishing.
According to the technical scheme, the chassis in the S1 has various models, is subjected to grade standard selection according to the thickness, the shape size, the use function and the use environment of the plate, and is subjected to explosive degree selection according to the installation requirement in normal use;
the case in the S1 can be fixedly installed, the stability of the bottom is determined according to the field installation mode, the case is prevented from moving, and the normal safety and the sealing performance of the case in use are guaranteed.
According to the technical scheme, the testing device in the S2 is in a sealed environment, and a camera and a pressure sensor are arranged in the testing device;
the cameras are distributed on the top and the side faces, and the pressure sensors are arranged on six faces;
the pressurizing mechanism is one or more of a hydraulic press, a collider and an explosive powder bag.
According to the technical scheme, the explosion video in the S3 is watched from multiple sides, and the appearance, the sealing performance, the deformation degree and the stability of the case are detected and compared, so that the explosion-proof grade of the case is determined, and data statistics is performed.
According to the technical scheme, in the step S4, 3-5 persons perform video playback, pressure data detection and appearance picture evaluation to manually determine the explosion-proof grade, comprehensively determine the explosion-proof grade when the explosion-proof grade has different grades, and normally determine and sign the explosion-proof grade.
According to the technical scheme, after organization and identification in the step S5, normal data disclosure and publication are carried out on videos, data and photos, and the explosion-proof grade of the chassis is determined.
According to the technical scheme, the environment in the S1 is classified;
a dangerous area: the explosive gaseous environment is abundant or is expected to be abundant, so that areas requiring special measures for the structure, installation and use of electrical equipment are required;
non-hazardous area: the explosive atmosphere is not expected to occur so abundantly that areas of special measures for the construction, installation and use of electrical equipment are not required.
According to the technical scheme, the substances in the S2 explosion comprise substances, gas, liquid and solid which can react with oxygen;
ignition sources include open flame, electrical spark, mechanical spark, electrostatic spark, high temperature, chemical reactions, light energy, etc.;
explosive materials include combustible materials.
According to the technical scheme, in the step S5, according to the grades and the division systems of different countries, the standard and the explosion-proof grade of the test need to be noted.
Compared with the prior art, the invention has the beneficial effects that: the explosion-proof case has the advantages of scientific and reasonable structure, safe and convenient use, different judgment standards for different cases, classification of unstable cases and different types of cases in the cases, and classification according to the use in different environments, so that the use of a specific case in a specific environment is determined, the normal explosion environment is ensured, then the appearance and the video are subjected to multi-aspect data determination through data acquisition after explosion, the explosion-proof grade of the case is determined, meanwhile, negotiation is performed on an objection, the error rate is reduced, and finally, after organization and identification, normal data disclosure and publication are performed on the video, the data and the photo, the explosion-proof grade of the case is determined, and multiple persons determine, so that the accuracy of grade explosion prevention can be ensured, and the explosion-proof case is suitable for better popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic diagram of the evaluation process of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
as shown in fig. 1, the invention provides a technical solution, and a method for testing and evaluating explosion-proof level of a chassis, comprising the following steps:
s1, selecting the type of the case, determining the normal installation effect of the case, and ensuring the stable and normal connection of the bottom end of the case to be stable;
s2, placing the case in a testing device, placing a pressurizing mechanism in the case, starting the testing device, and carrying out normal testing;
s3, in the test, the explosion video is watched, and the explosion result is identified;
s4, after the identification is completed, manually determining the explosion-proof grade, analyzing the explosion-proof grade and drawing up a grade analysis result;
and S5, identifying through organization, signing and stamping, and then publishing.
According to the technical scheme, the machine box in the S1 has various models, the grade standard selection is carried out according to the thickness, the shape size, the use function and the use environment of the plate, and the explosion degree is selected according to the installation requirement in the normal use;
the case in S1 can be fixedly installed, the stability of the bottom is determined according to the field installation mode, the movement of the case is prevented, and the normal safety and the sealing performance of the case in use are ensured.
According to the technical scheme, the testing device in the S2 is in a sealed environment, and a camera and a pressure sensor are arranged in the testing device;
the cameras are distributed on the top and the side faces, and the pressure sensors are arranged on the six faces;
the pressurizing mechanism is various in a hydraulic press, a collider and an explosive powder bag.
According to the technical scheme, the explosion video in the S3 is watched from multiple sides, and the appearance, the sealing performance, the deformation degree and the stability of the case are detected and compared, so that the explosion-proof grade of the case is determined, and data statistics is performed.
According to the technical scheme, the explosion-proof grade is manually determined in S4, 3 people play back videos, detect pressure data and evaluate appearance pictures, comprehensively determine the explosion-proof grade when the explosion-proof grade has different grades, and normally determine and sign the explosion-proof grade.
According to the technical scheme, after organization and identification in S5, normal data disclosure and publication are carried out on videos, data and photos, and the explosion-proof grade of the chassis is determined.
According to the technical scheme, the environments in the S1 are classified;
a dangerous area: the explosive gas environment is so abundant that areas requiring special measures for the structure, installation and use of electrical equipment are required;
non-hazardous area: the explosive atmosphere is not expected to occur so abundantly that areas of special measures for the construction, installation and use of electrical equipment are not required.
According to the technical scheme, the substances in the explosion in the S2 comprise substances, gas, liquid and solid which can react with oxygen;
ignition sources include open flame, electrical spark, mechanical spark, electrostatic spark, high temperature, chemical reactions, light energy, etc.;
explosive materials include combustible materials.
According to the technical scheme, in the step S5, according to the grades and the division systems of different countries, the standard and the explosion-proof grade of the test need to be noted.
Example 2:
as shown in fig. 1, the invention provides a technical solution, and a method for testing and evaluating explosion-proof level of a chassis, comprising the following steps:
s1, selecting the type of the case, determining the normal installation effect of the case, and ensuring the stable and normal connection of the bottom end of the case to be stable;
s2, placing the case in a testing device, placing a pressurizing mechanism in the case, starting the testing device, and carrying out normal testing;
s3, in the test, the explosion video is watched, and the explosion result is identified;
s4, after the identification is completed, manually determining the explosion-proof grade, analyzing the explosion-proof grade and drawing up a grade analysis result;
and S5, identifying through organization, signing and stamping, and then publishing.
According to the technical scheme, the machine box in the S1 has various models, the grade standard selection is carried out according to the thickness, the shape size, the use function and the use environment of the plate, and the explosion degree is selected according to the installation requirement in the normal use;
the case in S1 can be fixedly installed, the stability of the bottom is determined according to the field installation mode, the movement of the case is prevented, and the normal safety and the sealing performance of the case in use are ensured.
According to the technical scheme, the testing device in the S2 is in a sealed environment, and a camera and a pressure sensor are arranged in the testing device;
the cameras are distributed on the top and the side faces, and the pressure sensors are arranged on the six faces;
the pressurizing mechanism is various in a hydraulic press, a collider and an explosive powder bag.
According to the technical scheme, the explosion video in the S3 is watched from multiple sides, and the appearance, the sealing performance, the deformation degree and the stability of the case are detected and compared, so that the explosion-proof grade of the case is determined, and data statistics is performed.
According to the technical scheme, the explosion-proof grade is manually determined in S4, 4 persons play back videos, pressure data detection and appearance picture evaluation are carried out, comprehensive determination is carried out when different grades of the explosion-proof grade appear, and normal determination and signature are carried out on the data.
According to the technical scheme, after organization and identification in S5, normal data disclosure and publication are carried out on videos, data and photos, and the explosion-proof grade of the chassis is determined.
According to the technical scheme, the environments in the S1 are classified;
a dangerous area: the explosive gas environment is so abundant that areas requiring special measures for the structure, installation and use of electrical equipment are required;
non-hazardous area: the explosive atmosphere is not expected to occur so abundantly that areas of special measures for the construction, installation and use of electrical equipment are not required.
According to the technical scheme, the substances in the explosion in the S2 comprise substances, gas, liquid and solid which can react with oxygen;
ignition sources include open flame, electrical spark, mechanical spark, electrostatic spark, high temperature, chemical reactions, light energy, etc.;
explosive materials include combustible materials.
According to the technical scheme, in the step S5, according to the grades and the division systems of different countries, the standard and the explosion-proof grade of the test need to be noted.
Compared with the prior art, the invention has the beneficial effects that: the explosion-proof case has the advantages of scientific and reasonable structure, safe and convenient use, different judgment standards for different cases, classification of unstable cases and different types of cases in the cases, and classification according to the use in different environments, so that the use of a specific case in a specific environment is determined, the normal explosion environment is ensured, then the appearance and the video are subjected to multi-aspect data determination through data acquisition after explosion, the explosion-proof grade of the case is determined, meanwhile, negotiation is performed on an objection, the error rate is reduced, and finally, after organization and identification, normal data disclosure and publication are performed on the video, the data and the photo, the explosion-proof grade of the case is determined, and multiple persons determine, so that the accuracy of grade explosion prevention can be ensured, and the explosion-proof case is suitable for better popularization and use.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A test evaluation method for explosion-proof grade of a case is characterized by comprising the following steps: the method comprises the following steps:
s1, selecting the type of the case, determining the normal installation effect of the case, and ensuring the stable and normal connection of the bottom end of the case to be stable;
s2, placing the case in a testing device, placing a pressurizing mechanism in the case, starting the testing device, and carrying out normal testing;
s3, in the test, the explosion video is watched, and the explosion result is identified;
s4, after the identification is completed, manually determining the explosion-proof grade, analyzing the explosion-proof grade and drawing up a grade analysis result;
and S5, identifying through organization, signing and stamping, and then publishing.
2. The method for testing and evaluating the explosion-proof grade of the chassis according to claim 1, wherein the chassis in the S1 has various models, is subjected to grade standard selection according to the thickness, the shape and the size of a plate, the use function and the use environment, and is subjected to explosion degree selection according to the installation requirement in the normal use;
the case in the S1 can be fixedly installed, the stability of the bottom is determined according to the field installation mode, the case is prevented from moving, and the normal safety and the sealing performance of the case in use are guaranteed.
3. The method for testing and evaluating the explosion-proof grade of the chassis according to claim 1, wherein the testing device in the step S2 is a sealed environment, and a camera and a pressure sensor are installed inside the testing device;
the cameras are distributed on the top and the side faces, and the pressure sensors are arranged on six faces;
the pressurizing mechanism is one or more of a hydraulic press, a collider and an explosive powder bag.
4. The method for testing and evaluating the explosion-proof level of the case according to claim 1, wherein the explosion video in S3 is viewed from multiple sides, and the appearance, the sealing performance, the deformation degree and the stability of the case are detected and evaluated, so as to determine the explosion-proof level of the case, and perform data statistics.
5. The method as claimed in claim 1, wherein in S4, the explosion-proof level is manually determined, and 3-5 persons perform video playback, pressure data detection and appearance picture evaluation, and when the explosion-proof level has different ratings, the comprehensive determination is performed, and the data is normally determined and signed.
6. The method for testing and evaluating the explosion-proof level of the chassis according to claim 1, wherein after organization and identification in S5, normal data disclosure and publication are performed on video, data and photos to determine the explosion-proof level of the chassis.
7. The method for testing and evaluating the explosion-proof level of a chassis according to claim 1, wherein the environment is classified in S1;
a dangerous area: the explosive gaseous environment is abundant or is expected to be abundant, so that areas requiring special measures for the structure, installation and use of electrical equipment are required;
non-hazardous area: the explosive atmosphere is not expected to occur so abundantly that areas of special measures for the construction, installation and use of electrical equipment are not required.
8. The method for testing and evaluating the explosion-proof grade of the machine case according to claim 3, wherein the substances in the explosion in S2 comprise substances, gases, liquids and solids capable of reacting with oxygen;
ignition sources include open flame, electrical spark, mechanical spark, electrostatic spark, high temperature, chemical reactions, light energy, etc.;
explosive materials include combustible materials.
9. The method for testing and evaluating the explosion-proof rating of the equipment cabinet according to claim 1, wherein in the step S5, the standard and the explosion-proof rating of the test are noted according to the rating and classification system of different countries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110664430.3A CN113447613A (en) | 2021-06-16 | 2021-06-16 | Method for testing and evaluating explosion-proof grade of case |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110664430.3A CN113447613A (en) | 2021-06-16 | 2021-06-16 | Method for testing and evaluating explosion-proof grade of case |
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2021
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Application publication date: 20210928 |