CN114563524A - Automatic testing device for flame retardance of escape respirator - Google Patents
Automatic testing device for flame retardance of escape respirator Download PDFInfo
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- CN114563524A CN114563524A CN202210135250.0A CN202210135250A CN114563524A CN 114563524 A CN114563524 A CN 114563524A CN 202210135250 A CN202210135250 A CN 202210135250A CN 114563524 A CN114563524 A CN 114563524A
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 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
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the technical field of product detection, in particular to an automatic testing device for flame retardance of an escape respirator. The invention is provided with the automatic control adjusting device, the clamping device and the combustion device, the clamping device is fixed on the adjusting device, so that the movement of each tested point, the speed and the height distance of flame can be automatically controlled, manual operation is replaced, the test result is automatically judged, and the test quality and efficiency are greatly improved.
Description
Technical Field
The invention relates to the technical field of product detection, in particular to an automatic testing device for flame retardance of an escape respirator.
Background
The escape respirator is provided with a compressed air source which can supply clean air for people to breathe, and the exhaled air is directly exhausted into the atmosphere, so that the escape respirator is helpful for people to escape when an accident happens. The self-open compressed air respirator consists of an air bottle, an air bottle valve, a pressure indicator, a high-pressure component, a pressure reducer, a breathing conduit, a connecting piece, an air supply valve, a mask, a back tool and the like, the protection time is divided into four grades of 10min, 15min, 20min and 30min according to the rated protection time, the respirator product of any grade can meet the specified flame-retardant requirement, and all components which are possibly exposed to flame have the flame-retardant property. The tested point surface of the parts such as the mask, the hood and the like of the self-open compressed air escape respirator can pass through flame at the temperature of (800 +/-50) DEG C under the conditions of the moving speed of (60 +/-6) mm/s and the vertical height (20 +/-2) mm from the flame at the top end of the propane burner, and the time of the sustained combustion of the tested point is not more than 5 s. At present, a feasible mature test device specially aiming at the flame resistance test of an escape respirator product is not available, manual and manual methods are mostly adopted for testing, the control on speed, distance and time is not accurate enough, and the test quality and efficiency are not high.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide an automatic testing device for the flame retardance of an escape respirator.
The invention is realized by the following technical scheme:
an automatic testing device for fire resistance of an escape respirator comprises a vertical telescopic rod A, wherein the vertical telescopic rod A is controlled by a servo motor A to stretch up and down, a servo motor B is fixed on a stretching end A of the vertical telescopic rod A and controls the rotation of a vertical shaft B of the vertical telescopic rod A, a fixing frame is fixed at the upper end of the vertical shaft B, a horizontal telescopic rod C and the servo motor C are fixed on the fixing frame, the servo motor C controls the horizontal telescopic rod C to stretch horizontally, a fixing sleeve is installed on the horizontal telescopic rod C and is provided with a vertical telescopic rod F, the vertical telescopic rod F is vertical to the horizontal telescopic rod C, the servo motor F controls the vertical telescopic rod F to stretch up and down, a full-automatic image measuring instrument is fixed at the lower end of the stretching end F of the vertical telescopic rod F, a servo motor D is fixed at the stretching end C of the horizontal telescopic rod C, and the motor shaft of the servo motor D is a horizontal shaft D, the servo motor D controls the rotation of a horizontal shaft D, the horizontal shaft D is perpendicular to the horizontal telescopic rod C, the servo motor E is fixed at the end part of the horizontal shaft D, a motor shaft of the servo motor E is a horizontal shaft E, the servo motor E controls the rotation of the horizontal shaft E, the horizontal shaft E is perpendicular to the horizontal shaft D, and a clamping device is welded at the end part of the horizontal shaft E; the table top of the rack is fixed with a burner which is positioned below the clamping device, a gas pipeline is arranged below the burner, a gas pressure sensor and an electric control regulating valve are arranged on the gas pipeline, a vertical supporting rod is fixed on the table top on the left side of the burner, a horizontal rod is welded on the upper portion of the vertical supporting rod, a thermocouple and an ignition needle are upwards arranged at the right end of the horizontal rod, the ignition needle is positioned at a nozzle of the burner, and a monitoring camera is arranged at the top end of the vertical supporting rod; the servo motor A, the servo motor B, the servo motor C, the servo motor D, the servo motor E, the servo motor F, the full-automatic image measuring instrument, the gas pressure sensor, the electric control regulating valve, the thermocouple, the ignition needle and the electric control lead of the monitoring camera are all connected with the PLC.
The diameter of the thermocouple is 1.5mm, and the thermocouple is located 20mm above the burner nozzle.
The invention provides an automatic testing device for the flame retardance of an escape respirator, which replaces manual operation tests, and enables all tested points on a tested part to move, the speed and the height distance of flame passing through all the tested points, the continuous burning time judgment of the tested points and other automatic controls to be carried out, the test result is automatically judged, and the quality and the efficiency of the flame retardance test of the escape respirator are greatly improved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a view showing a state in the rotation process of fig. 1.
Fig. 4 is a state diagram after the test point adjustment.
In the figure: 1 horizontal axis D, 2 servo motor A, 3 vertical telescopic rod A, 4 telescopic end A, 5 flange A, 6 servo motor B, 7 vertical axis B, 8 flange B, 9 fixed mount, 10 servo motor C, 11 horizontal telescopic rod C, 12 fixed mount, 13 vertical telescopic rod F, 14 servo motor F, 15 telescopic end C, 16 flange C, 17 servo motor D, 18 servo motor E, 19 horizontal axis E, 20 flange E, 21 clamping device, 22 sample, 23 thermocouple, 24 ignition needle, 25 horizontal rod, 26 monitoring camera, 27 vertical supporting rod, 28 table board, 29 table frame, 30 flame, 31 combustor, 32 gas pressure sensor, 33 electric control regulating valve, 35 gas pipeline, 36 fastening bolt, 37 telescopic end F, 38 full-automatic image measuring instrument.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The device comprises an adjusting device, a clamping device 21 and a combustion device, and the three parts are described in detail as follows:
the adjusting device comprises a vertical telescopic rod A3 fixed on the ground, and the vertical telescopic rod A3 is controlled by a servo motor A2 to extend and retract up and down. A flange A5 is fixed on the telescopic end A4 of the vertical telescopic rod A3, a servo motor B6 is fixed on the flange A5 upwards, the motor shaft of the servo motor B6 is a vertical shaft B7, and the servo motor B6 controls the vertical shaft B7 to rotate. A flange B8 is fixed at the upper end of a vertical shaft B7, a fixed frame 9 is welded on the upper end face of a flange B8, a horizontal telescopic rod C11 is fixed on the fixed frame 9 through bolts, the horizontal telescopic rod C11 is controlled to horizontally stretch through a servo motor C10, and the servo motor C10 is fixed on the fixed frame 9. A fixing sleeve 12 is mounted on the horizontal telescopic rod C11 through a fastening bolt 36, a vertical telescopic rod F13 is mounted at the outer end of the fixing sleeve 12, a vertical telescopic rod F13 is perpendicular to the horizontal telescopic rod C11, and a servo motor F14 controls the vertical telescopic rod F13 to stretch up and down. The lower end of the telescopic end F37 of the vertical telescopic rod F13 is fixed with the full-automatic image measuring instrument 38 through a bolt, and the full-automatic image measuring instrument 38 can measure the vertical distance between the upper end surface of the nozzle of the combustor 31 of the combustion device and the tested point of the test sample 22. The vertical distance between the upper end surface of the nozzle of the burner 31 and the test point of the specimen 22 was defined as (20. + -.2) mm. A flange C16 is fixed to the telescopic end C15 of the horizontal telescopic rod C11, a servo motor D17 is fixed to the flange C16, a motor shaft of the servo motor D17 is a horizontal shaft D1, the servo motor D17 controls the rotation of the horizontal shaft D1, and the horizontal shaft D1 is perpendicular to the horizontal telescopic rod C11. A servo motor E18 is fixed at the end part of the horizontal shaft D1, the motor shaft of the servo motor E18 is a horizontal shaft E19, the servo motor E18 controls the rotation of the horizontal shaft E19, and the shaft center line of the horizontal shaft E19 is perpendicular to the shaft center line of the horizontal shaft D1. The servo motor A2, the servo motor B6, the servo motor C10, the servo motor D17, the servo motor E18, the servo motor F14 and the electric control wires of the full-automatic image measuring instrument 38 are all connected with a PLC controller. A flange E20 is fixed to the end of the horizontal shaft E19, and a clamp 21 is welded to the flange E20.
The clamping device 21 is a device for fixing a metal head die or an escape respirator component during testing, a head cover or a face cover of the escape respirator can be placed on the metal head die, and the clamping device 21 is a conventional device for performing a flame-retardant test of the escape respirator and is not described in more detail here. The test sample held by the holding device 21 is collectively referred to as a test specimen 22 in this embodiment.
The combustion device is positioned at one side of the adjusting device and comprises a stand 29, a burner 31 is fixed at one side of the table top 28 of the stand 29 close to the clamping device 21, and the burner 31 is positioned below the test sample 22. A gas pipe 35 is provided below the burner 31, and gas is supplied through the gas pipe 35. A gas pressure sensor 32 and an electric control regulating valve 33 are arranged on the gas pipeline 35. A vertical supporting rod 27 is fixed on a table top 28 on the left side of a combustor 31 through bolts, a horizontal rod 25 is welded on the upper portion of the vertical supporting rod 27, a thermocouple 23 and an ignition needle 24 are installed at the right end of the horizontal rod 25 in an upward mode, the ignition needle 24 is located at the nozzle of the combustor 31, the diameter of the thermocouple 23 is 1.5mm, the thermocouple 23 is located 20mm above the nozzle of the combustor 31, namely the inner flame tip of the flame, the temperature of the inner flame tip is highest and stable, and the total height of the flame 30 is 40 mm. A monitoring camera 26 is arranged at the top end of the vertical supporting rod 27, and the monitoring camera 26 is used for monitoring the combustion condition of the flame 30 and the tested point of the sample 22. The electric control wires of the gas pressure sensor 32, the electric control regulating valve 33, the thermocouple 23, the ignition needle 24 and the monitoring camera 26 are all connected with a PLC controller.
The working process of the invention is briefly described as follows:
firstly, a sample 22 to be tested is fixed on the clamping device 21, then the PLC controller controls the servo motor B6 to start working, the vertical shaft B7 slowly rotates, the sample 22 is rotated above the burner 31, and the servo motor B6 stops working. The full-automatic image measuring instrument 38 measures the lower shape and height image data condition of the sample 22 and transmits the measured condition to the PLC controller, if the tested point of the sample 22 is not right above the nozzle of the combustor 31 or the vertical distance between the tested point and the upper end surface of the nozzle of the combustor 31 below is not in the specified range of (20 +/-2) mm, the PLC controller controls the servo motor A2 to work to extend or shorten the vertical telescopic rod A3, so that the tested point is raised or lowered; the PLC controller controls the servo motor C10 to work so that the horizontal telescopic rod C11 extends or shortens, and therefore the tested point moves in the horizontal direction; the PLC controller controls the servo motor D17 to work so that the tested point can rotate in the left and right directions; the PLC controller controls the servo motor E18 to work so as to enable the tested point to rotate in the front and back directions. In summary, the test point of the test specimen 22 was adjusted to be directly above the nozzle of the burner 31 by the above control and the perpendicular distance of the test point from the upper end face of the nozzle of the burner 31 was within the set range of (20 ± 2) mm. After the distance is adjusted, the servo motor A2, the servo motor C10, the servo motor D17 and the servo motor E18 stop working.
Then the PLC controller starts the electric control adjusting valve 33, the gas enters the burner 31 through the electric control adjusting valve 33, the gas pressure sensor 32 transmits the pressure value to the PLC controller, the PLC controller controls the electric control adjusting valve 33 to enable the gas pressure value to be within a set range, then the ignition needle 24 ignites the gas flame 30, the thermocouple 23 transmits the temperature data of the flame 30 to the PLC controller, when the temperature of the flame 30 reaches a set value (800 +/-50) DEG C, the PLC controller controls the servo motor B6 to start working and controls the running speed of the servo motor B6, the displacement speed of a tested point relative to the flame 30 is (60 +/-6) mm/s, when the tested point passes through the flame 30, the running speed of the servo motor B6 is accelerated, meanwhile, the test point 22 moves to another tested point through the regulation of the servo motor A2, the servo motor B6, the servo motor C10, the servo motor D17 and the servo motor E18, referring to fig. 4, a new test point is shown, and the full-automatic image measuring instrument 38 measures the vertical distance from the new test point to the upper end surface of the nozzle of the burner 31, adjusts the distance within the range of (20 ± 2) mm, repeats the test process until all the test points are burned by the flame 30,
the monitoring camera 26 and the full-automatic image measuring instrument 38 send the combustion condition image of each tested point of the sample 22 when passing through the flame 30 to the PLC in real time, and the PLC judges whether the continuous combustion time exceeds 5s when the tested point combusts and automatically gives a test conclusion.
The device can replace manual operation, so that the movement of each tested point, the speed, the height distance, the continuous burning time and the like of the flame 30 can be automatically controlled, the test result is automatically judged, and the test quality and efficiency are greatly improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (2)
1. The utility model provides an escape respirator fire resistance automatic test device which characterized in that: comprises a vertical telescopic rod A (3), the vertical telescopic rod A (3) is vertically stretched and retracted and is controlled by a servo motor A (2), a servo motor B (6) is fixed on a stretching end A (4) of the vertical telescopic rod A (3), the servo motor B (6) controls the rotation of a vertical shaft B (7) thereof, a fixing frame (9) is fixed at the upper end of the vertical shaft B (7), a horizontal telescopic rod C (11) and a servo motor C (10) are fixed on the fixing frame (9), the servo motor C (10) controls the horizontal telescopic rod C (11) to horizontally stretch, a fixing sleeve (12) is installed on the horizontal telescopic rod C (11), a vertical telescopic rod F (13) is installed on the fixing sleeve (12), the vertical telescopic rod F (13) is perpendicular to the horizontal telescopic rod C (11), the servo motor F (14) controls the vertical telescopic rod F (13) to vertically stretch and retract, a full-automatic image measuring instrument (38) is fixed at the lower end F (37) of the vertical telescopic rod F (13), a servo motor D (17) is fixed at the telescopic end C (15) of the horizontal telescopic rod C (11), the motor shaft of the servo motor D (17) is a horizontal shaft D (1), the servo motor D (17) controls the rotation of the horizontal shaft D (1), the horizontal shaft D (1) is perpendicular to the horizontal telescopic rod C (11), a servo motor E (18) is fixed at the end part of the horizontal shaft D (1), the motor shaft of the servo motor E (18) is a horizontal shaft E (19), the servo motor E (18) controls the rotation of the horizontal shaft E (19), the horizontal shaft E (19) is perpendicular to the horizontal shaft D (1), and a clamping device (21) is welded at the end part of the horizontal shaft E (19); the gas burner is characterized by further comprising a rack (29), a burner (31) is fixed on a table top (28) of the rack (29), the burner (31) is located below the clamping device (21), a gas pipeline (35) is arranged below the burner (31), a gas pressure sensor (32) and an electric control regulating valve (33) are mounted on the gas pipeline (35), a vertical supporting rod (27) is fixed on the table top (28) on the left side of the burner (31), a horizontal rod (25) is welded on the upper portion of the vertical supporting rod (27), a thermocouple (23) and an ignition needle (24) are upwardly mounted at the right end of the horizontal rod (25), the ignition needle (24) is located at a nozzle of the burner (31), and a monitoring camera (26) is arranged at the top end of the vertical supporting rod (27); the servo motor A (2), the servo motor B (6), the servo motor C (10), the servo motor D (17), the servo motor E (18), the servo motor F (14), the full-automatic image measuring instrument (38), the gas pressure sensor (32), the electric control regulating valve (33), the thermocouple (23), the ignition needle (24) and the electric control lead of the monitoring camera (26) are all connected with the PLC.
2. The automatic testing device for fire resistance of escape respirator according to claim 1, characterized in that: the diameter of the thermocouple (23) is 1.5mm, and the thermocouple (23) is located 20mm above a nozzle of the combustor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135250.0A CN114563524A (en) | 2022-02-15 | 2022-02-15 | Automatic testing device for flame retardance of escape respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135250.0A CN114563524A (en) | 2022-02-15 | 2022-02-15 | Automatic testing device for flame retardance of escape respirator |
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| Publication Number | Publication Date |
|---|---|
| CN114563524A true CN114563524A (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210135250.0A Pending CN114563524A (en) | 2022-02-15 | 2022-02-15 | Automatic testing device for flame retardance of escape respirator |
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| CN (1) | CN114563524A (en) |
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| CN212060114U (en) * | 2020-04-16 | 2020-12-01 | 中国石油化工股份有限公司 | Flammability and fire resistance detection device |
| CN113740482A (en) * | 2021-09-24 | 2021-12-03 | 山东省产品质量检验研究院 | Automatic testing device for flame retardant property of helmet for firefighter and using method |
-
2022
- 2022-02-15 CN CN202210135250.0A patent/CN114563524A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192678A (en) * | 2017-06-06 | 2017-09-22 | 浙江大学 | A kind of self-propelled low-altitude remote sensing device based on multisensor imaging spectral |
| CN108344833A (en) * | 2018-04-11 | 2018-07-31 | 重庆师范大学 | Thermal cell heating plate automatic measurement burn rate device and its detection method |
| CN208979833U (en) * | 2018-09-20 | 2019-06-14 | 安徽鹏丰食品有限公司 | Quick grabbing device of cake aversion |
| CN109248064A (en) * | 2018-10-24 | 2019-01-22 | 杭州翊森科技有限公司 | A kind of portable cardiopulmonary emergency instrument and its working method |
| CN210665654U (en) * | 2019-09-16 | 2020-06-02 | 厦门市标测检测技术有限公司 | Needle flame test device |
| CN211652730U (en) * | 2019-11-27 | 2020-10-09 | 质远检测(深圳)有限公司 | Needle flame tester |
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