CN110236254B - High-temperature operation garment and model design method thereof - Google Patents
High-temperature operation garment and model design method thereof Download PDFInfo
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- CN110236254B CN110236254B CN201910555875.0A CN201910555875A CN110236254B CN 110236254 B CN110236254 B CN 110236254B CN 201910555875 A CN201910555875 A CN 201910555875A CN 110236254 B CN110236254 B CN 110236254B
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- A41H3/00—Patterns for cutting-out; Methods of drafting or marking-out such patterns, e.g. on the cloth
- A41H3/007—Methods of drafting or marking-out patterns using computers
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
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Abstract
The invention discloses a high-temperature operation garment and a model design method thereof, and belongs to the field of high-temperature operation garments. A high-temperature operation garment and a model design method thereof are analyzed in four steps, firstly, problem analysis is carried out, four layers of heat conduction models, a single-target optimization decision model and a double-target optimization decision model are determined to be required to be distributed and established, a body surface temperature time relation model is obtained through the four layers of heat conduction models and the initial conditions, boundary conditions and interface conditions of each layer, and relevant parameters of systems under different conditions are solved by combining computer software and language programming, so that the optimal thickness of a certain fabric layer is determined, the heat protection garment can meet the requirements under different high-temperature working environments, the research and development cost is reduced, and the research and development period is shortened.
Description
Technical Field
The invention relates to the field of high-temperature operation clothes, in particular to a high-temperature operation clothes and a model design method thereof.
Background
The clothing and clothing are the most basic requirements of human beings, and the clothing is the first place, is the intermediate between human and environment and plays the role of the second layer of skin of the human body. Nowadays, the living standard is improved, people have higher and higher requirements on clothes, the requirements on clothes under different environments are higher and higher, and the requirements are particularly on high temperature;
people working in a hot environment bear higher pressure than people working in a common environment, so that special clothes need to be worn when high-temperature operation is finished, and workers can be safely protected under the condition of high temperature or ultrahigh temperature, so that burns are avoided. The design standard of the protective clothing forms a set of perfect system at home and abroad, and at present, the structure of the high-temperature resistant flame-retardant protective clothing which is relatively universal internationally is mainly divided into three layers from outside to inside: fire-retardant skin, waterproof ventilative layer and insulating layer. Its principle is to reduce the heat transfer speed, so that the external high heat is slowly transferred to the skin in a small amount. The excellent heat protection clothes not only have good barrier effect on external heat, but also achieve certain heat and humidity transfer capacity so as to be beneficial to heat release of human bodies and sweat evaporation. However, in the thermal protection clothes and research and development, the enhancement of the thermal protection performance and the reduction of the metabolic heat load of the human body are always contradictory, and the challenge to scientific and technical personnel is to solve the problem;
the selection and design of the thermal protection suit material are complex, various parameters of each fabric layer such as density, specific heat, thermal conductivity and thickness are key factors influencing the performance of the thermal protection suit, a multi-layer thermal protection suit system model under a high-temperature environment is designed, consideration is needed, the optimal thickness of each fabric layer is solved under different high-temperature environments, the temperature of the outer side of the skin of a dummy is enabled to be as low as possible, and meanwhile, the purposes of reducing cost and shortening the research and development period are needed to be achieved; how to rapidly analyze and solve is very important and has very important significance.
The existing high-temperature operation clothes and the model design method thereof cannot adjust the external high temperature in time.
Disclosure of Invention
The invention aims to solve the problem that timely adjustment cannot be carried out for external high temperature, and provides a high-temperature operation garment and a model design method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a design method of a high-temperature operation clothing model comprises the following steps;
s1, filling a heat insulation layer inside the high-temperature protective clothing, wearing the filled high-temperature protective clothing, placing the dummy in a constant-temperature heating box at the constant temperature of 37 ℃ for 1-1.5h, placing the dummy at the constant temperature of 37 ℃ in a constant high-temperature heating box, and recording the temperature in the constant high-temperature heating box as T;
s2, dividing the dummy model into I, II, III and IV layers, wherein the I layer is a flame-retardant outer layer; II, a heat insulation layer; the layer III is a waterproof breathable layer; the IV layer is an air layer contacted with the skin; and recording the thicknesses of the I, II, III and IV layers and the temperature change along with time;
s3, establishing a heat conduction model of the I, II, III and IV layers according to the recorded data;
wherein the heat conduction model of the I layer is:
T(x,0)＝37°,x∈(0,L1)；
T(0,t)＝T；
T(L1,t)＝T1；
where ρ is1Is the density of the layer I fabric; c. C1The specific heat of the first fabric layer; k is a radical of1Thermal conductivity of the first fabric layer; omega1The value range of the thickness of the first layer of fabric layer is shown; l is1The thickness of the first fabric layer; t (x, T) is a functional relation of the temperature T, the thickness x of the fabric layer in the horizontal direction and the time T;
wherein the heat conduction model of layer II:
T2|x＝L1＝T1|x＝L1；
where ρ is2The density of the second fabric layer; c. C2The specific heat of the second fabric layer; k is a radical of2Thermal conductivity of the second fabric layer; omega2The value range of the thickness of the second layer of fabric layer; l is2The thickness of the second fabric layer; t is1Is the thickness x of the fabric layer is L1The temperature of the layer I fabric; t is2Is the thickness x of the fabric layer is L1The temperature of the second fabric layer;
wherein the thermal conductivity model of layer III:
T3|x＝L1+L2＝T2|x＝L1+L2；
where ρ is3Is the density of the third fabric layer; c. C3Is the specific heat of the third fabric layer; k is a radical of3Thermal conductivity of a layer III fabric; omega3The value range of the thickness of the third layer of fabric layer; l is3Is the thickness of the third fabric layer; t is2Is the thickness x of the fabric layer is L2The temperature of the second fabric layer; t is3Is the thickness x of the fabric layer is L2The temperature of the third fabric layer;
wherein, the heat conduction model of the IV layer, supposing that the air layer flux on both sides is equal, then have:
(qair,rad+qair,cond/conv)x＝Lfab＝(qair,rad+qair,cond/conv)x＝Lfab+Lgap
s4, integrating the four models;
through the integrated formula, the optimal thickness of the high-temperature garment at different high temperatures can be determined, and therefore the filling thickness of the thermal insulation layer of the high-temperature garment at different high temperatures is determined.
Preferably, the step of filling the heat insulation layer inside the high-temperature protective clothing in the step S comprises the following steps;
a1, clockwise rotating the rotating tube to drive the rotating bevel gear to rotate, thereby driving the connecting rod to move outwards, thereby moving the sealing block outwards, so that the filling pipeline and the filling connecting tube can keep smooth, filling is carried out until the elastic filling capsule is balanced with the external set air pressure, and the filling is closed;
a2, after filling, rotating the rotating pipe anticlockwise to drive the rotating bevel gear to rotate, so as to drive the connecting rod to move inwards, so as to move the sealing block inwards, so as to close the filling pipeline, separate the sealing plate from the negative pressure suction hole of the device, connect the negative pressure suction pipeline with the negative pressure suction pipe, and perform negative pressure suction, so that the waterproof breathable layer, the flame-retardant outer layer and the heat insulation layer are tightly attached;
and A3, continuing rotating the rotating pipe anticlockwise to enable the sealing plate to be attached to the negative pressure suction hole, combining the sealing blocks completely and fitting the filling connecting pipe, keeping the inner sealing, and finishing the filling operation.
A high-temperature operation garment is applied to a high-temperature operation garment model design method and comprises a high-temperature protective garment main body, a joint protective layer and a filling connecting device, wherein the high-temperature protective garment main body is sequentially provided with a flame-retardant outer layer, a heat-insulating layer and a waterproof breathable layer from outside to inside, the inner side of the high-temperature protective garment is fixedly provided with the filling connecting device, the filling connecting device is fixedly connected with the waterproof breathable layer, the filling connecting device is fixedly connected with the heat-insulating layer, the joint protective layer is arranged at the joint of an outer cuff of the high-temperature protective garment, the joint protective layer is arranged at the joint of an upper moving skirt and the joint of a shoulder, a plurality of elastic filling capsules are arranged in the heat-insulating layer, and the elastic filling capsules are fixedly connected through connecting pipes.
Preferably, filling holes are formed in the upper side and the lower side of the middle of the connecting pipe, the left end and the right end of the connecting pipe are fixedly connected with the outer end of the sealed pipe, fixed blocks are arranged on the upper side and the lower side of the inner end of the sealed pipe, the inner walls of the left side and the right side of the fixed blocks are movably connected with the left end and the right end of the rotating shaft, a torsion spring is fixedly sleeved on the outer side of the middle of the rotating shaft, the other end of the torsion spring is fixedly connected with the inner wall of the fixed block, and the left side and the right side of the rotating shaft are fixedly connected with the upper end of the pressure door in the sealed pipe.
Preferably, the filling connecting device comprises a negative pressure suction pipe, a rotating pipe, a filling connecting pipe, a rotating bevel gear, a connecting rod and a sealing block, the outer part of the negative pressure suction pipe is fixedly connected with the heat insulation layer, the inner part of the negative pressure suction pipe is movably sleeved with the lower end of the rotating pipe, the rear end of the negative pressure suction pipe is fixedly connected with the outer side of the middle part of the filling connecting pipe, a negative pressure suction hole is arranged in an interlayer on the inner wall of the negative pressure suction pipe, a plurality of sealing plates are annularly and equidistantly arranged on the outer side of the middle part of the rotating pipe, the sealing plates are matched with the negative pressure suction hole, the bottom end inside the rotating pipe is meshed and connected with the rear side of the rotating bevel gear, a tooth socket matched with the rotating bevel gear is arranged at the bottom end inside the rotating pipe, a limiting ring is movably sleeved inside the front end inside the rotating pipe, the front side of the rotating bevel gear is in threaded connection with the rear side of the connecting rod, and a thread groove matched with the front side of the rotating bevel gear is arranged on the connecting rod, the lower end of the connecting rod is fixedly connected with one outer side of the sealing block, the rear side surface of the sealing block is movably connected with the front end of the filling connecting pipe, and the front side of the upper end of the connecting rod is movably connected with the rear side of the limiting ring.
Preferably, the front side of the upper end of the connecting rod is fixedly connected with the rear side of the limiting rod, a plurality of limiting grooves are formed in the outer annular part of the rear side of the limiting ring at equal intervals, and the limiting rods are movably sleeved in the limiting grooves.
Compared with the prior art, the invention provides a high-temperature operation garment and a model design method thereof, and the high-temperature operation garment has the following beneficial effects:
1. the model established by the invention is tightly combined with the actual situation, the problem is solved, the model has stronger popularization, the temperature three-dimensional model drawn by using MATLAB software has vivid and clear visual interface and simple and convenient operation; through analysis of experimental data, the problem is solved to a certain extent, the characteristics of the experimental data can be rapidly mastered, and a more reasonable model is convenient to establish; the model is established on the basis of a general mathematical physical equation, and has applicability; the method fully utilizes software such as Lingo and the like to carry out optimization solution, has small error and more accurate data, and carries out analysis in four steps, firstly carries out problem analysis, determines that four layers of heat conduction models, a single-target optimization decision model and a double-target optimization decision model are required to be distributed and established, obtains a body surface temperature time relation model through the four layers of heat conduction models and the initial conditions, the boundary conditions and the interface conditions of each layer, and solves related parameters of systems under different conditions by combining computer software and language programming, thereby determining the optimal thickness of a certain fabric layer, ensuring that the thermal protective clothing can meet the requirements under different high-temperature working environments, achieving the purposes of reducing research and development cost and shortening research and development period, having clear design idea and many aspects, and utilizing genetic algorithm to calculate when solving a data processing formula to ensure that the result is more accurate and simultaneously simplifying the complexity of data processing, and finally substituting the obtained result into each model for verification, determining that the multilayer thermal protection suit model can normally work under the extreme high-temperature external environment condition, and under other conditions, ensuring that the multilayer thermal protection suit model has better working effect and higher accuracy of the obtained result.
2. The invention is also provided with a heat insulation layer, when in use, the rotating pipe is rotated clockwise to drive the rotating bevel gear to rotate, so as to drive the connecting rod to move outwards, and the sealing block is moved outwards, so that the filling pipeline and the filling connecting pipe can keep smooth, filling is carried out until the elastic filling capsule is balanced with the external set air pressure, and the filling is closed; after filling, the rotating pipe is rotated anticlockwise to drive the rotating bevel gear to rotate, so that the connecting rod is driven to move inwards, the sealing block is driven to move inwards, the filling pipeline is closed, the sealing plate is separated from the negative pressure suction hole of the device, then the negative pressure suction pipeline is connected with the negative pressure suction pipe, negative pressure suction is carried out, and the waterproof breathable layer, the flame-retardant outer layer and the heat insulation layer are tightly attached; continuing anticlockwise rotation rotating tube to make, closing plate and the laminating of negative pressure suction hole each other, sealed piece merges completely and agrees with mutually with the filling connecting pipe, keeps inside seal, accomplishes the filling operation, can effectual regulation through adopting the filling mode, and the thickness of insulating layer can be effectual adjust the high temperature operation clothes according to different environment to be more suitable, staff's use.
Drawings
FIG. 1 is a schematic front view of a high temperature operation garment according to the present invention;
FIG. 2 is a schematic view of a high temperature operation garment according to the present invention in partial cross-section;
FIG. 3 is an enlarged schematic structural view A of a high temperature operation garment according to the present invention;
FIG. 4 is a schematic structural view of an elastic filling capsule part of a high temperature operation garment according to the present invention;
fig. 5 is a schematic perspective view of a filling and connecting device for high-temperature operation clothing according to the present invention;
FIG. 6 is an enlarged schematic view of a high temperature operation garment according to the present invention;
fig. 7 is a rear view schematically illustrating a rear view of a high temperature operation garment according to the present invention.
The reference numbers in the figures illustrate:
1 high-temperature protective clothing, 2 filling connecting devices, 3 connecting layer, 4 flame-retardant outer layers, 5 elastic filling capsules, 6 heat-insulating layers, 7 waterproof breathable layers, 8 filling holes, 9 rotating shafts, 10 pressure gates, 11 closed pipes, 12 connecting pipes, 13 torsion springs, 14 fixing blocks, 15 negative-pressure suction pipes, 16 negative-pressure suction holes, 17 sealing blocks, 18 rotating pipes, 19 sealing plates, 20 rotating bevel gears, 21 filling connecting pipes, 22 limiting rings, 23 limiting grooves, 24 connecting rods and 25 limiting rods.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
a design method of a high-temperature operation clothing model comprises the following steps;
s1, filling the heat insulation layer 6 inside the high-temperature protective clothing, wearing the filled high-temperature protective clothing, placing the dummy in a constant-temperature heating box at the constant temperature of 37 ℃ for 1-1.5h, placing the dummy at the constant temperature of 37 ℃ in a constant high-temperature heating box, and recording the temperature in the constant high-temperature heating box as T;
s2, dividing the dummy model into I, II, III and IV layers, wherein the I layer is a flame-retardant outer layer 4; II is a heat insulation layer 6; the layer III is a waterproof breathable layer 7; the IV layer is an air layer contacted with the skin; and recording the thicknesses of the I, II, III and IV layers and the temperature change along with time;
s3, establishing a heat conduction model of the I, II, III and IV layers according to the recorded data;
wherein the heat conduction model of the I layer is:
T(x,0)＝37°,x∈(0,L1)；
T(0,t)＝T；
T(L1,t)＝T1；
where ρ is1Is the density of the layer I fabric; c. C1The specific heat of the first fabric layer; k is a radical of1Thermal conductivity of the first fabric layer; omega1The value range of the thickness of the first layer of fabric layer is shown; l is1The thickness of the first fabric layer; t (x, T) is a functional relation of the temperature T, the thickness x of the fabric layer in the horizontal direction and the time T;
wherein the heat conduction model of layer II:
T2|x＝L1＝T1|x＝L1；
where ρ is2The density of the second fabric layer; c. C2The specific heat of the second fabric layer; k is a radical of2Thermal conductivity of the second fabric layer; omega2The value range of the thickness of the second layer of fabric layer; l is2The thickness of the second fabric layer; t is1Is the thickness x of the fabric layer is L1The temperature of the layer I fabric; t is2Is the thickness x of the fabric layer is L1The temperature of the second fabric layer;
wherein the thermal conductivity model of layer III:
T3|x＝L1+L2＝T2|x＝L1+L2；
where ρ is3Is the density of the third fabric layer; c. C3Is the specific heat of the third fabric layer; k is a radical of3Thermal conductivity of a layer III fabric; omega3The value range of the thickness of the third layer of fabric layer; l is3Is the thickness of the third fabric layer; t is2Is the thickness x of the fabric layer is L2The temperature of the second fabric layer; t is3Is the thickness x of the fabric layer is L2The temperature of the third fabric layer;
wherein, the heat conduction model of the IV layer, supposing that the air layer flux on both sides is equal, then have:
(qair,rad+qair,cond/conv)x＝Lfab＝(qair,rad+qair,cond/conv)x＝Lfab+Lgap
s4, integrating the four models;
through the integrated formula, the optimal thickness of the high-temperature garment at different high temperatures can be determined, so that the filling thickness of the thermal insulation layer 6 in the high-temperature garment at different high temperatures is determined.
Further, preferably, the step of filling the heat insulation layer 6 inside the high-temperature protective suit in S1 includes the following steps;
a1, clockwise rotating the rotating tube 18 to drive the rotating bevel gear 20 to rotate, thereby driving the connecting rod 24 to move outwards, thereby moving the sealing block 17 outwards, so that the filling pipeline and the filling connecting tube 21 can keep smooth, filling is carried out until the elastic filling capsule 5 is balanced with the external set air pressure, and the filling is closed;
a2, after filling, rotating the rotating pipe 18 anticlockwise to drive the rotating bevel gear 20 to rotate, so as to drive the connecting rod 24 to move inwards, so as to move the sealing block 17 inwards, so as to close the filling pipeline, separate the sealing plate 19 from the device negative pressure suction hole 16, connect the negative pressure suction pipeline with the negative pressure suction pipe 15, and perform negative pressure suction, so that the waterproof breathable layer 7, the flame-retardant outer layer 4 and the heat insulation layer 6 are tightly attached;
and A3, continuing rotating the rotating tube 18 anticlockwise to enable the sealing plate 19 and the negative pressure suction hole 16 to be attached to each other, combining the sealing blocks 17 completely and fitting the filling connecting tube 21 to keep internal sealing, and finishing the filling operation.
Example 2: the difference is based on example 1;
the high-temperature operation garment is applied to a high-temperature operation garment model design method and comprises a high-temperature protective garment main body 1, a joint protective layer 3 and a filling connecting device 2, wherein the high-temperature protective garment main body 1 is sequentially provided with a flame-retardant outer layer 4, a heat-insulating layer 6 and a waterproof breathable layer 7 from outside to inside, the inner side of the high-temperature protective garment 1 is fixedly provided with the filling connecting device 2, the filling connecting device 2 is fixedly connected with the waterproof breathable layer 7, the filling connecting device 2 is fixedly connected with the heat-insulating layer 6, the joint of an outer cuff of the high-temperature protective garment 1, the joint protective layer 3 is arranged at the joint of an upper moving skirt edge and the joint of a shoulder, a plurality of elastic filling capsules 5 are arranged inside the heat-insulating layer 6, and the elastic filling capsules 5 are fixedly connected through connecting pipes 12.
Filling holes 8 are formed in the upper side and the lower side of the middle of the connecting pipe 12, the left end and the right end of the connecting pipe 12 are fixedly connected with the outer end of the closed pipe 11, fixing blocks 14 are arranged on the upper side and the lower side of the inner end of the closed pipe 11, the inner walls of the left side and the right side of each fixing block 14 are movably connected with the left end and the right end of the rotating shaft 9, a torsion spring 13 is fixedly sleeved on the outer side of the middle of the rotating shaft 9, the other end of the torsion spring 13 is fixedly connected with the inner wall of each fixing block 14, and the left side and the right side of the rotating shaft 9 are fixedly connected with the upper end of the pressure door 10 in the inner portion.
The filling connecting device 2 comprises a negative pressure suction pipe 15, a rotating pipe 18, a filling connecting pipe 21, a rotating bevel gear 20, a connecting rod 24 and a sealing block 17, the outer part of the negative pressure suction pipe 15 is fixedly connected with the heat insulation layer 6, the lower end of the rotating pipe 18 is movably sleeved in the negative pressure suction pipe 15, the rear end of the negative pressure suction pipe 15 is fixedly connected with the outer side of the middle part of the filling connecting pipe 21, a negative pressure suction hole 16 is arranged in an interlayer of the inner wall of the negative pressure suction pipe 15, a plurality of sealing plates 19 are annularly and equidistantly arranged on the outer side of the middle part of the rotating pipe 18, the sealing plates 19 are matched with the negative pressure suction hole 16, the bottom end in the rotating pipe 18 is meshed and connected with the rear side of the rotating bevel gear 20, a tooth socket matched with the rotating bevel gear 20 is arranged at the bottom end in the rotating pipe 18, a limiting ring 22 is movably sleeved in the front end in the rotating bevel gear 20, the front side of the rotating bevel gear 20 is in threaded connection with the rear side of the connecting rod 24, a threaded groove matched with the rotating bevel gear 20 is arranged on the connecting rod 24, the lower end of the connecting rod 24 is fixedly connected with one outer side of the sealing block 17, the rear side surface of the sealing block 17 is movably connected with the front end of the filling connecting pipe 21, and the front side of the upper end of the connecting rod 24 is movably connected with the rear side of the limiting ring 22.
The front side of the upper end of the connecting rod 24 is fixedly connected with the rear side of the limiting rod 25, a plurality of limiting grooves 23 are annularly and equidistantly arranged on the outer portion of the rear side of the limiting ring 22, and the limiting rod 25 is movably sleeved in the limiting grooves 23.
The invention is also provided with a heat insulation layer 6, when in use, the rotating pipe 18 is rotated clockwise to drive the rotating bevel gear 20 to rotate, so as to drive the connecting rod 24 to move outwards, and further move the sealing block 17 outwards, so that the filling pipeline and the filling connecting pipe 21 can keep smooth, filling is carried out until the elastic filling capsule 5 is balanced with the external set air pressure, and the filling is closed; after filling, the rotating pipe 18 is rotated anticlockwise to drive the rotating bevel gear 20 to rotate, so that the connecting rod 24 is driven to move inwards, the sealing block 17 is driven to move inwards, the filling pipeline is closed, the sealing plate 19 is separated from the device negative pressure suction hole 16, then the negative pressure suction pipeline is connected with the negative pressure suction pipe 15, negative pressure suction is carried out, and the waterproof breathable layer 7 and the flame-retardant outer layer 4 are tightly attached to the heat insulation layer 6; continuing anticlockwise rotation rotating tube 18 to make, closing plate 19 laminates with negative pressure suction hole 16 each other, and sealed piece 17 merges completely and agrees with mutually with filling connecting pipe 21, keeps inside seal, accomplishes the filling operation, can effectual regulation through adopting the filling mode, and the thickness of insulating layer 6 can be effectual adjusts high temperature operation clothes according to different environment to be more suitable, staff's use.
Example 3: the difference is based on examples 1 and 2;
the model established by the invention is tightly combined with the actual situation, the problem is solved, the model has stronger popularization, the temperature three-dimensional model drawn by using MATLAB software has vivid and clear visual interface and simple and convenient operation; through analysis of experimental data, the problem is solved to a certain extent, the characteristics of the experimental data can be rapidly mastered, and a more reasonable model is convenient to establish; the model is established on the basis of a general mathematical physical equation, and has applicability; the method fully utilizes software such as Lingo and the like to carry out optimization solution, has small error and more accurate data, and carries out analysis in four steps, firstly carries out problem analysis, determines that four layers of heat conduction models, a single-target optimization decision model and a double-target optimization decision model are required to be distributed and established, obtains a body surface temperature time relation model through the four layers of heat conduction models and the initial conditions, the boundary conditions and the interface conditions of each layer, and solves related parameters of systems under different conditions by combining computer software and language programming, thereby determining the optimal thickness of a certain fabric layer, ensuring that the thermal protective clothing can meet the requirements under different high-temperature working environments, achieving the purposes of reducing research and development cost and shortening research and development period, having clear design idea and many aspects, and utilizing genetic algorithm to calculate when solving a data processing formula to ensure that the result is more accurate and simultaneously simplifying the complexity of data processing, and finally substituting the obtained result into each model for verification, determining that the multilayer thermal protection suit model can normally work under the extreme high-temperature external environment condition, and under other conditions, ensuring that the multilayer thermal protection suit model has better working effect and higher accuracy of the obtained result.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A design method of a high-temperature operation clothing model is characterized by comprising the following steps: comprises the following steps;
s1, filling a heat insulation layer (6) in the high-temperature protective clothing, wearing the filled high-temperature protective clothing, placing the dummy in a constant-temperature heating box at the constant temperature of 37 ℃ for 1-1.5h, placing the dummy at the constant temperature of 37 ℃ in a constant high-temperature heating box, and recording the temperature in the constant high-temperature heating box as T;
s2, dividing the high-temperature protective clothing worn by the dummy model into I, II, III and IV layers, wherein the I layer is a flame-retardant outer layer (4); II is a heat insulation layer (6); the layer III is a waterproof breathable layer (7); the IV layer is an air layer contacted with the skin; and recording the thicknesses of the I, II, III and IV layers and the temperature change along with time;
s3, establishing a heat conduction model of the I, II, III and IV layers according to the recorded data;
wherein the heat conduction model of the I layer is:
T(x,0)＝37°,x∈(0,L1)；
T(0,t)＝T；
T(L1,t)＝T1；
where ρ is1Is the density of the layer I fabric; c. C1The specific heat of the first fabric layer; k is a radical of1Thermal conductivity of the first fabric layer; omega1The value range of the thickness of the first layer of fabric layer is shown; l is1The thickness of the first fabric layer; t (x, T) is a functional relation of the temperature T, the thickness x of the fabric layer in the horizontal direction and the time T;
wherein the heat conduction model of layer II:
where ρ is2The density of the second fabric layer; c. C2The specific heat of the second fabric layer; k is a radical of2Thermal conductivity of the second fabric layer; omega2The value range of the thickness of the second layer of fabric layer; l is2The thickness of the second fabric layer; t is1Is the thickness x of the fabric layer is L1The temperature of the layer I fabric; t is2Is the thickness x of the fabric layer is L1The temperature of the second fabric layer;
wherein the thermal conductivity model of layer III:
where ρ is3Is the density of the third fabric layer; c. C3Is the specific heat of the third fabric layer; k is a radical of3Thermal conductivity of a layer III fabric; omega3The value range of the thickness of the third layer of fabric layer; l is3Is the thickness of the third fabric layer; t is2Is the thickness x of the fabric layer is L2The temperature of the second fabric layer; t is3Is the thickness x of the fabric layer is L2The temperature of the third fabric layer;
wherein, the heat conduction model of the IV layer, supposing that the air layer flux on both sides is equal, then have:
s4, integrating the four models;
by integrating the formula, the optimal thickness of the high-temperature garment at different high temperatures can be determined, so that the filling thickness of the thermal insulation layer (6) in the high-temperature garment at different high temperatures is determined.
2. The design method of the high-temperature operation clothing model as claimed in claim 1, wherein: in the step S1, filling the heat insulation layer (6) inside the high-temperature protective clothing, wherein the filling method comprises the following steps;
a1, clockwise rotating the rotating tube (18) to drive the rotating bevel gear (20) to rotate, thereby driving the connecting rod (24) to move outwards, thereby moving the sealing block (17) outwards, so that the filling pipeline and the filling connecting tube (21) can keep smooth, filling is carried out until the elastic filling capsule (5) is balanced with the external set air pressure, and the filling is closed;
a2, after filling, rotating the rotating pipe (18) anticlockwise to drive the rotating bevel gear (20) to rotate, so as to drive the connecting rod (24) to move inwards, so as to move the sealing block (17) inwards, so as to close the filling pipeline, and separate the sealing plate (19) from the negative pressure suction hole (16), and then connecting the negative pressure suction pipeline with the negative pressure suction pipe (15) to perform negative pressure suction, so that the waterproof breathable layer (7) and the flame-retardant outer layer (4) are tightly attached to the heat insulation layer (6);
a3, continuing to rotate the rotating tube (18) anticlockwise to enable the sealing plate (19) and the negative pressure suction hole (16) to be attached to each other, combining the sealing blocks (17) completely and fitting the filling connecting tube (21), keeping the inner sealing and finishing the filling operation.
3. The high-temperature operation garment is applied to a high-temperature operation garment model design method, and comprises a high-temperature protective garment (1), a joint protective layer (3) and a filling connecting device (2), and is characterized in that: the high-temperature protective suit (1) is sequentially provided with a flame-retardant outer layer (4), a heat-insulating layer (6) and a waterproof breathable layer (7) from outside to inside, a filling connecting device (2) is fixedly installed on the inner side of the high-temperature protective suit (1), the filling connecting device (2) is fixedly connected with the waterproof breathable layer (7), the filling connecting device (2) is fixedly connected with the heat-insulating layer (6), a connecting part protective layer (3) is arranged at the connecting part of cuffs, the connecting part of an upper moving skirt and the connecting part of shoulders on the outer part of the high-temperature protective suit (1), a plurality of elastic filling capsules (5) are arranged in the heat-insulating layer (6), and the elastic filling capsules (5) are fixedly connected through connecting pipes (12);
filling holes (8) are formed in the upper side and the lower side of the middle of the connecting pipe (12), the left end and the right end of the connecting pipe (12) are fixedly connected with the outer end of the closed pipe (11), the upper side and the lower side of the inner end of the closed pipe (11) are provided with fixing blocks (14), the inner walls of the left side and the right side of each fixing block (14) are movably connected with the left end and the right end of the rotating shaft (9), a torsion spring (13) is fixedly sleeved on the outer side of the middle of the rotating shaft (9), the other end of the torsion spring (13) is fixedly connected with the inner wall of the fixing block (14), and the left side and the right side of the rotating shaft (9) are fixedly connected with the upper end of the pressure door (10) by the inner part;
the filling connecting device (2) comprises a negative pressure suction pipe (15), a rotating pipe (18), a filling connecting pipe (21), a rotating bevel gear (20), a connecting rod (24) and a sealing block (17), wherein the outside of the negative pressure suction pipe (15) is fixedly connected with the heat insulation layer (6), the lower end of the rotating pipe (18) is movably sleeved in the negative pressure suction pipe (15), the rear end of the negative pressure suction pipe (15) is fixedly connected with the outer side of the middle part of the filling connecting pipe (21), a negative pressure suction hole (16) is formed in the interlayer of the inner wall of the negative pressure suction pipe (15), a plurality of sealing plates (19) are annularly and equidistantly arranged on the outer side of the middle part of the rotating pipe (18), the sealing plates (19) are matched with the negative pressure suction hole (16), the bottom end in the rotating pipe (18) is meshed with the rear side of the rotating bevel gear (20), and tooth grooves matched with the rotating bevel gear (20) are formed in the bottom end in the rotating pipe (18), spacing ring (22) have been cup jointed in the inside activity of the inside front end of rotating tube (18), rotate helical gear (20) front side and connecting rod (24) rear side threaded connection, be provided with the thread groove that matches with rotation helical gear (20) front side on connecting rod (24), connecting rod (24) lower extreme leans on outer one side fixed connection with sealed piece (17), sealed piece (17) rear side surface and filling connecting pipe (21) front end swing joint, connecting rod (24) upper end front side and spacing ring (22) rear side swing joint.
4. A high temperature work garment as claimed in claim 3, wherein: connecting rod (24) upper end front side and gag lever post (25) rear side fixed connection, the outside annular equidistant a plurality of spacing grooves (23) of gag lever post (22) rear side, gag lever post (25) have been cup jointed in the inside activity of spacing groove (23).
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| CN112883591A (en) * | 2021-03-25 | 2021-06-01 | 常州工学院 | Method and device for constructing temperature distribution analysis model of each layer of high-temperature operation clothes |
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| US9955740B2 (en) * | 2015-12-28 | 2018-05-01 | Ian A. Bruce | Emergency anti-hypothermia system and highly portable, inflatable emergency vest therefor |
| CN106354948B (en) * | 2016-08-31 | 2019-10-25 | 航宇救生装备有限公司 | A kind of emulation mode of the 3 D human body heat transfer model based on airman protective suit's dress |
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