CN114636784B - Method and equipment for testing and evaluating combustion performance of down feather - Google Patents
Method and equipment for testing and evaluating combustion performance of down feather Download PDFInfo
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- CN114636784B CN114636784B CN202210221506.XA CN202210221506A CN114636784B CN 114636784 B CN114636784 B CN 114636784B CN 202210221506 A CN202210221506 A CN 202210221506A CN 114636784 B CN114636784 B CN 114636784B
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
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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
- G01N33/0004—Gaseous mixtures, e.g. polluted air
Abstract
The invention discloses a method and equipment for testing and evaluating the combustion performance of down feather, wherein the method comprises the steps of testing the maximum diameter of a damaged bottom ring, testing the depth of combustion damage and testing the smoke yield, so as to form an index system for testing and evaluating the flame retardant performance of the down feather, and the index system specifically comprises the maximum diameter of the damaged bottom ring, the depth of combustion damage and the smoke yield; through automatic weighing ware, not only can be fast accurate weigh quantitative eiderdown spacing, slowly push into the eiderdown combustor with the eiderdown for the test moreover, guaranteed the fluffy three-dimensional characteristic of eiderdown self for the test, guaranteed the fire resistance test index system's as far as accords with actual conditions. The screw sleeve is characterized in that an arc groove is formed in the outer wall of the screw sleeve, the lower end of the arc guide rail is fixedly connected with the base, the arc groove is in fit sliding connection with the arc guide rail, and the limiting guide structure is compact.
Description
Technical Field
The invention belongs to the technical field of flame retardance test of loose fiber materials, and particularly relates to a method and equipment for testing and evaluating combustion performance of down feather.
Background
The down is rich in resources and wide in application, and is suitable for down jackets, down quilts, down home textiles and the like; because of the characteristics of light weight, warmth retention, environmental protection and the like, is popular in the market.
Because of the functional requirement, the flame retardant performance of the down is required to be higher in the market at present, the preparation of the flame retardant functional down by adopting methods such as after finishing, chemical modification and the like has become an industry development trend, but no very suitable detection and evaluation method and matching equipment are available for the flame retardant performance of the down at present.
The oxygen limiting index instrument can test the flame retardant property of bulk fibers such as down, but the flame retardant property of the down aggregate cannot be truly reflected by the test result without considering that the down has fluffy three-dimensional characteristics.
The vertical combustion tester is only suitable for testing the flame retardant property of planar materials, but is not suitable for testing and evaluating the flame retardant property of loose fibers such as down.
In summary, based on the various demands of market and technology, it is highly desirable to invent a method for testing and evaluating the combustion performance of down and a matched experimental device.
Disclosure of Invention
The invention provides a method and equipment for testing and evaluating the combustion performance of down feather, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a method for testing and evaluating the combustion performance of down feather comprises a maximum diameter test of a damaged bottom ring, a depth test of combustion damage and a smoke yield test;
the method specifically comprises the following steps:
step S1: filling the down for testing into an automatic weighing device for weighing, and then weighing the down for quantitative testing;
step S2: connecting the end part of an automatic weighing device for weighing the down for quantitative test with a down burner, pushing the down for quantitative test in the automatic weighing device into the down burner, and then taking down the automatic weighing device;
step S3: hanging the down burner on an automatic rotating bracket;
step S4: igniting a lampwick of the test alcohol lamp, and enabling the lampwick to be positioned right below the down burner;
step S5: the down burner is electrically adjusted in height so that the lower end of the down burner is positioned above the wick flame of the test alcohol burner, and the down burner stops at the contact position with the outer flame of the wick flame and stays for a time T;
step S6: taking down feather burners off the automatic rotating support;
step S7: measuring the maximum diameter of a damaged bottom ring after the test down is combusted in the down burner;
step S8: and measuring the burning damage depth of the down for testing in the down burner after burning.
Preferably, the filling amount of the down feather for test in the step S1 is 5g/dm 3 1g of down for quantitative test is weighed.
Preferably, the down burner in the step S2 has a cavity volume of 10cm×10cm×2cm.
Preferably, the residence time T in step S5 is 12S.
Preferably, in the time period of the residence time T in the step S5, a smoke detector for testing the smoke amount in the down feather burning process is arranged at a position 5cm above the down feather ignition point for testing the down feather burner.
The device for testing and evaluating the combustion performance of the down feather comprises a down feather combustor, an automatic rotating bracket and an automatic weighing device, wherein the down feather combustor is connected with the automatic rotating bracket;
the down burner comprises a burner main body, square wire netting and a side cover plate, wherein a rotating shaft is arranged at the rear end of the square wire netting, the square wire netting is hinged with the burner main body through the rotating shaft, an arc-shaped cylindrical buckle is arranged at the front end of the square wire netting, and the square wire netting is clamped with the burner main body through the arc-shaped cylindrical buckle; sliding grooves are symmetrically formed in hollowed-out parts on two sides of the combustor main body, and the side cover plates are connected with the sliding grooves in a sliding manner; the rear end of the burner main body is provided with a square hanging groove;
the automatic rotating support comprises a base, a support motor, a lifting screw rod, a nut sleeve, an arc guide rail and a hanging frame, wherein the support motor is fixedly connected with the inside of the base, the lifting screw rod is rotatably connected with the base, the lower end of the lifting screw rod is connected with the end part of an output shaft of the support motor through a coupling, the nut sleeve is connected with the lifting screw rod through a screw pair, an arc groove is formed in the outer wall of the nut sleeve, the lower end of the arc guide rail is fixedly connected with the base, the arc groove is matched with the arc guide rail in a sliding mode, and the hanging frame is fixedly connected with the nut sleeve;
the automatic weighing device comprises a weighing box, a pushing motor, a pushing screw, a pushing plate and a blocking plate, wherein the pushing motor is in fastening connection with the end part of the weighing box, the end part of an output shaft of the pushing motor is connected with the end part of the pushing screw through a coupler, the pushing plate is in sliding connection with the inner wall of the weighing box and is in fastening connection with the middle of the pushing screw, the front end of the weighing box is provided with a slot, the blocking plate is inserted into the front end of the slot to seal the weighing box, and positioning sliding blocks are symmetrically arranged at the front end of the weighing box.
The beneficial effects of adopting above technical scheme are:
1. the method for testing and evaluating the flame retardant property of the down feather forms an index system for testing and evaluating the flame retardant property of the down feather, and specifically comprises the maximum diameter of a damaged bottom ring, the depth of burning damage and the smoke yield.
2. The filling amount of the down feather for testing in the step S1 is 5g/dm 3 The quantitative down for testing is weighed to be 1g, so that the filling amount of the down for testing is ensured to be equal to the filling amount of the most common down jackets in the market.
The inner cavity volume of the down burner in the step S2 is 10cm multiplied by 2cm, so that the fluffy three-dimensional characteristic of the down for testing is ensured, and the flame retardance test index system is ensured to be in line with actual conditions as much as possible.
The residence time T in the step S5 is 12S, so that the consistency of the contact flame is ensured.
In the time period of the residence time T in the step S5, a smoke detector for testing the smoke amount in the down feather burning process is arranged 5cm above the down feather ignition point for testing the down feather burner, so that the consistency of contact flames and the consistency of smoke detection positions are ensured.
3. The invention relates to equipment for testing and evaluating the combustion performance of down feather, which comprises the following specific use processes: placing a certain amount of down for testing into an automatic weighing device for weighing, inserting a blocking plate into a slot, and weighing the down for quantitative testing; the weight of the down for testing is obtained by subtracting the weight of the automatic weighing machine from the obtained weight.
Closing square wire netting, making arc cylinder buckle fastening combustor main part, pushing the side cover plate into right side reservation position along the spout, then pushing in the location slider of automatic weighing device along the spout, then extracting the barrier plate from the slot, then the remote control starts pushing motor, pushing motor drive push screw makes the push plate push down with the eiderdown for the test in the combustor, then release the automatic weighing device along the spout, close combustor main part both sides fretwork department along the spout with the side cover plate, then hang square hanging groove on the stores pylon of automatic rotating support.
According to the height of the alcohol lamp or the experiment requirement, the support motor is started in a remote control mode, the support motor drives the lifting screw rod to enable the nut sleeve to move up and down along with the hanging frame in the limiting guide direction of the arc guide rail, the height of the down burner is adjusted, the proper height is adjusted, and the experiment is started.
According to the equipment for testing and evaluating the combustion performance of the down feather, disclosed by the invention, the automatic weighing device can be used for quickly and accurately weighing and limiting quantitative down feather, and the down feather for testing is slowly pushed into the down feather combustor, so that the fluffy three-dimensional property of the down feather for testing is ensured, and the flame retardance testing index system is ensured to be in line with actual conditions as far as possible. The screw sleeve is characterized in that an arc groove is formed in the outer wall of the screw sleeve, the lower end of the arc guide rail is fixedly connected with the base, the arc groove is in fit sliding connection with the arc guide rail, and the limiting guide structure is compact.
Drawings
FIG. 1 is a graph of damaged bottom ring diameter and its evaluation system;
FIG. 2 is a graph of the burn and mar depth ratio and its evaluation system;
FIG. 3 is a graph showing the smoke yield of combustion and its evaluation system;
FIG. 4 is an assembly drawing of the down burning test evaluation apparatus of the present invention;
FIG. 5 is an assembly view of a down burner;
FIG. 6 is a schematic view of a burner body structure;
FIG. 7 is a schematic view of a chute structure on a burner body;
FIG. 8 is a schematic view of a square wire structure;
FIG. 9 is an assembly view of an automatic rotating bracket;
FIG. 10 is a schematic diagram of a bracket motor configuration;
FIG. 11 is an assembled perspective view of the automatic weighing machine;
FIG. 12 is a state of a down burner after filling test down;
FIG. 13 is a bottom ring diameter plot without flame retardant properties;
FIG. 14 is a bottom ring diameter view of a less flame retardant;
FIG. 15 is a bottom ring diameter view with good flame retardancy;
FIG. 16 is a bottom ring diameter view with excellent flame retardancy;
wherein:
1. a down burner; 2. automatically rotating the bracket; 3. an automatic weighing device;
10. a burner body; 10-1, a chute; 10-2, square hanging grooves; 11. square wire netting; 11-1, a rotating shaft; 11-2, arc-shaped cylindrical buckles; 12. a side cover plate;
20. a base; 21. a bracket motor; 22. lifting screw rods; 23. a nut sleeve; 23-1, an arc groove; 24. a circular arc guide rail; 25. a hanging rack;
30. weighing box; 30-1, slots; 30-2, positioning a sliding block; 31. pushing a motor; 32. pushing the screw; 33. a pushing plate; 34. and a blocking plate.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
As shown in fig. 1 to 16, the invention relates to a method and equipment for testing and evaluating the combustion performance of down feather, which form an index system for testing and evaluating the flame retardant performance of the down feather, and specifically comprise the maximum diameter of a damaged bottom ring, the combustion damage depth and the smoke yield; through automatic weighing ware, not only can be fast accurate weigh quantitative eiderdown spacing, slowly push into the eiderdown combustor with the eiderdown for the test moreover, guaranteed the fluffy three-dimensional characteristic of eiderdown self for the test, guaranteed the fire resistance test index system's as far as accords with actual conditions. The screw sleeve is characterized in that an arc groove is formed in the outer wall of the screw sleeve, the lower end of the arc guide rail is fixedly connected with the base, the arc groove is in fit sliding connection with the arc guide rail, and the limiting guide structure is compact.
Specifically, as shown in fig. 1 to 16, a method for testing and evaluating the combustion performance of down feather comprises a maximum diameter test of a damaged bottom ring, a depth test of combustion damage and a smoke yield test;
the method specifically comprises the following steps:
step S1: filling the down for testing into an automatic weighing device 3 for weighing, and then weighing the down for quantitative testing;
step S2: the end part of an automatic weighing device 3 for weighing the down for quantitative test is connected with a down burner 1, the down for quantitative test in the automatic weighing device 3 is pushed into the down burner 1, and then the automatic weighing device 3 is taken down;
step S3: hanging the down burner 1 on an automatic rotary bracket 2;
step S4: igniting a lampwick of the test alcohol lamp, and enabling the lampwick to be positioned right below the down burner 1;
step S5: the down burner 1 is electrically adjusted in height so that the lower end of the down burner is positioned above the wick flame of the alcohol burner, and the down burner stops at the contact position with the outer flame of the wick flame and stays for a time T;
step S6: taking down burner 1 off automatic rotary rack 2;
step S7: measuring the maximum diameter of a damaged bottom ring after the test down is burnt in the down burner 1;
step S8: the burning damage depth of the test down in the down burner 1 after burning was measured.
The filling amount of the down feather for testing in the step S1 is 5g/dm 3 1g of down for quantitative test is weighed.
The inner cavity volume of the down burner 1 in the step S2 is 10cm multiplied by 2cm.
The residence time T in step S5 is 12S.
In the time period of the residence time T in the step S5, a smoke detector for testing the smoke amount in the down burning process is arranged at a position 5cm above the down burning point for testing of the down burner 1.
The device for testing and evaluating the combustion performance of the down feather comprises a down feather combustor 1, an automatic rotary support 2 and an automatic weighing device 3, wherein the down feather combustor 1 is connected with the automatic rotary support 2.
The down burner 1 comprises a burner main body 10, square wire netting 11 and a side cover plate 12, wherein a rotating shaft 11-1 is arranged at the rear end of the square wire netting 11, the square wire netting 11 is hinged with the burner main body 10 through the rotating shaft 11-1, an arc-shaped cylindrical buckle 11-2 is arranged at the front end of the square wire netting 11, and the square wire netting 11 is clamped with the burner main body 10 through the arc-shaped cylindrical buckle 11-2; sliding grooves 10-1 are symmetrically formed in hollowed-out parts on two sides of the combustor main body 10, and the side cover plates 12 are connected with the sliding grooves 10-1 in a sliding mode; the rear end of the burner main body 10 is provided with a square hanging groove 10-2.
The automatic rotating support 2 comprises a base 20, a support motor 21, a lifting screw 22, a nut sleeve 23, an arc guide rail 24 and a hanging frame 25, wherein the support motor 21 is in fastening connection with the inside of the base 20, the lifting screw 22 is in rotary connection with the base 20, the lower end of the lifting screw is connected with the end part of an output shaft of the support motor 21 through a coupling, the nut sleeve 23 is connected with the lifting screw 22 through a screw pair, an arc groove 23-1 is formed in the outer wall of the nut sleeve 23, the lower end of the arc guide rail 24 is in fastening connection with the base 20, the arc groove 23-1 is in fit sliding connection with the arc guide rail 24, and the hanging frame 25 is in fastening connection with the nut sleeve 23.
The automatic weighing device 3 comprises a weighing box 30, a pushing motor 31, a pushing screw 32, a pushing plate 33 and a blocking plate 34, wherein the pushing motor 31 is fixedly connected with the end part of the weighing box 30, the end part of an output shaft of the pushing motor 31 is connected with the end part of the pushing screw 32 through a coupler, the pushing plate 33 is slidably connected with the inner wall of the weighing box 30 and is fixedly connected with the middle of the pushing screw 32, the front end of the weighing box 30 is provided with a slot 30-1, the blocking plate 34 is inserted into the slot 30-1 to seal the front end of the weighing box 30, and positioning sliding blocks 30-2 are symmetrically arranged at the front end of the weighing box 30.
The following describes specific modes of operation with specific examples:
example 1:
the method for testing and evaluating the flame retardant property of the down feather forms an index system for testing and evaluating the flame retardant property of the down feather, and specifically comprises the maximum diameter of a damaged bottom ring, the depth of burning damage and the smoke yield.
The filling amount of the down feather for testing in the step S1 is 5g/dm 3 The quantitative down for testing is weighed to be 1g, so that the filling amount of the down for testing is ensured to be equal to the filling amount of the most common down jackets in the market.
The inner cavity volume of the down burner 1 in the step S2 is 10cm multiplied by 2cm, so that the fluffy three-dimensional characteristic of the down for testing is ensured, and the flame retardance test index system is ensured to be in line with the actual situation as much as possible.
The residence time T in the step S5 is 12S, so that the consistency of the contact flame is ensured.
In the time period of the residence time T in the step S5, a smoke detector for testing the smoke amount in the down feather burning process is arranged 5cm above the down feather ignition point for testing of the down feather burner 1, so that the consistency of contact flames and the consistency of smoke detection positions are ensured.
Example 2:
the invention relates to equipment for testing and evaluating the combustion performance of down feather, which comprises the following specific use processes: placing a certain amount of down for test into an automatic weighing device 3 for weighing, inserting a blocking plate 34 into a slot 30-1, and weighing the down for quantitative test; the weight of the down for test was obtained by subtracting the weight of the automatic weighing machine 3 from the weight obtained.
Closing square wire netting 11, fastening arc cylinder buckle 11-2 to burner body 10, pushing side cover plate 12 into right side reserved position along spout 10-1, then pushing positioning slide block 30-2 of automatic weighing device 3 into spout 10-1, then pulling out blocking plate 34 from slot 30-1, then starting push motor 31 remotely, push motor 31 drives push screw 32 to make push plate 33 push down for testing into down burner 1, then pushing out automatic weighing device 3 along spout 10-1, closing side cover plate 12 along spout 10-1 to hollowed out position of burner body 10 both sides, then hanging square hanging groove 10-2 into hanger 25 of automatic rotating support 2.
According to the height of the alcohol lamp or the experiment requirement, the bracket motor 21 is started in a remote control mode, the bracket motor 21 drives the lifting screw rod 22 to enable the nut sleeve 23 to move up and down along the limiting guide of the arc guide rail 24, the height of the down burner is adjusted, the proper height is adjusted, and the experiment is started.
According to the equipment for testing and evaluating the combustion performance of the down feather, through the automatic weighing device 3, not only can quantitative down feather be quickly and accurately weighed and limited, but also the down feather for testing is slowly pushed into the down feather combustor 1, so that the fluffy three-dimensional characteristic of the down feather for testing is ensured, and the flame retardance testing index system is ensured to be in line with actual conditions as far as possible. The arc groove 23-1 is arranged on the outer wall of the nut sleeve 23, the lower end of the arc guide rail 24 is fixedly connected with the base 20, the arc groove 23-1 is in fit sliding connection with the arc guide rail 24, and the limit guide structure is compact.
While the invention has been described above by way of example with reference to the accompanying drawings, it is to be understood that the invention is not limited to the particular embodiments described, but is capable of numerous insubstantial modifications of the inventive concept and solution; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.
Claims (6)
1. A method for testing and evaluating the combustion performance of down feather is characterized by comprising the following steps: the method comprises a maximum diameter test of a damaged bottom ring, a burning damage depth test and a smoke yield test;
the method specifically comprises the following steps:
step S1: filling the down for testing into an automatic weighing device (3) for weighing, and then weighing the down for quantitative testing;
step S2: the end part of an automatic weighing device (3) for weighing the down for quantitative test is connected with a down burner (1), the down for quantitative test in the automatic weighing device (3) is pushed into the down burner (1), and then the automatic weighing device (3) is taken down;
step S3: hanging the down burner (1) on an automatic rotating bracket (2);
step S4: igniting a lampwick of the test alcohol lamp, and enabling the lampwick to be positioned right below the down burner (1);
step S5: the down burner (1) is electrically adjusted in height so that the lower end of the down burner is positioned above the wick flame of the test alcohol lamp and stops at the contact position with the outer flame of the wick flame, and the retention time is T;
step S6: taking down the down burner (1) off the automatic rotary support (2);
step S7: measuring the maximum diameter of a damaged bottom ring after the down for testing burns in the down burner (1);
step S8: and measuring the burning damage depth of the down for testing in the down burner (1) after burning.
2. The method for testing and evaluating the combustion performance of the down feather according to claim 1, wherein the method comprises the following steps: the filling amount of the down feather for testing in the step S1 is 5g/dm 3 1g of down for quantitative test is weighed.
3. The method for testing and evaluating the combustion performance of the down feather according to claim 1, wherein the method comprises the following steps: the inner cavity volume of the down burner (1) in the step S2 is 10cm multiplied by 2cm.
4. The method for testing and evaluating the combustion performance of the down feather according to claim 1, wherein the method comprises the following steps: the residence time T in step S5 is 12S.
5. The method for testing and evaluating the combustion performance of the down feather according to claim 1, wherein the method comprises the following steps: in the time period of the residence time T in the step S5, a smoke detector for testing the smoke amount in the down burning process is arranged at a position 5cm above the down ignition point for testing of the down burner (1).
6. The apparatus for testing and evaluating the combustion performance of down feather according to claim 1, wherein: the down burner comprises a down burner (1), an automatic rotating bracket (2) and an automatic weighing device (3), wherein the down burner (1) is connected with the automatic rotating bracket (2);
the down burner (1) comprises a burner main body (10), square wire netting (11) and a side cover plate (12), wherein a rotating shaft (11-1) is arranged at the rear end of the square wire netting (11), the square wire netting (11) is hinged with the burner main body (10) through the rotating shaft (11-1), an arc-shaped cylindrical buckle (11-2) is arranged at the front end of the square wire netting (11), and the square wire netting (11) is connected with the burner main body (10) in a clamping mode through the arc-shaped cylindrical buckle (11-2); sliding grooves (10-1) are symmetrically formed in hollowed-out parts on two sides of the combustor main body (10), and the side cover plates (12) are connected with the sliding grooves (10-1) in a sliding mode; the rear end of the burner main body (10) is provided with a square hanging groove (10-2);
the automatic rotating support (2) comprises a base (20), a support motor (21), a lifting screw (22), a nut sleeve (23), an arc guide rail (24) and a hanging frame (25), wherein the support motor (21) is fixedly connected with the inside of the base (20), the lifting screw (22) is rotatably connected with the base (20), the lower end of the lifting screw is connected with the end part of an output shaft of the support motor (21) through a coupling, the nut sleeve (23) is connected with the lifting screw (22) through a screw pair, an arc groove (23-1) is formed in the outer wall of the nut sleeve (23), the lower end of the arc guide rail (24) is fixedly connected with the base (20), the arc groove (23-1) is in sliding connection with the arc guide rail (24), and the hanging frame (25) is fixedly connected with the nut sleeve (23);
automatic weighing ware (3) are including weighing case (30), propelling movement motor (31), propelling movement screw rod (32), push plate (33) and barrier plate (34), propelling movement motor (31) and weighing case (30) tip fastening connection, propelling movement motor (31) output shaft tip passes through shaft coupling and propelling movement screw rod (32) end connection, push plate (33) and weighing case (30) inner wall sliding connection, and with propelling movement screw rod (32) middle fastening connection, weighing case (30) front end is equipped with slot (30-1), barrier plate (34) insert slot (30-1) seal weighing case (30) front end, weighing case (30) front end symmetry is equipped with location slider (30-2).
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| CN202210221506.XA CN114636784B (en) | 2022-03-09 | 2022-03-09 | Method and equipment for testing and evaluating combustion performance of down feather |
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| CN202210221506.XA CN114636784B (en) | 2022-03-09 | 2022-03-09 | Method and equipment for testing and evaluating combustion performance of down feather |
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| CN114636784B true CN114636784B (en) | 2023-09-01 |
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