CN201488994U - A new type of space microclimate simulation device under clothes - Google Patents

Abstract

The utility model relates to a novel device for simulating the microclimate of the space under clothing. The test device is placed on a plastic fixed base (5), the simulated skin (8) is fixed on a metal plate (3), and water is fed through a water pipe (15). There is a temperature control sensor (4) on the side of the metal plate (3), a heating resistance wire (2) on the bottom, and a nylon sleeve (7), a sample pressure ring (9), a skin temperature sensor (10) and a humidity sensor in the upper experimental area. The sensor (11), the temperature sensor (12) and the fabric sample (13) are composed, and the fabric sample (13) is fastened on the nylon sleeve (7) by the sample pressure ring (9) and the fixing screw (14). The skin temperature sensor (10) is fixed on the surface of the simulated skin (8), and the humidity sensor (11) and the temperature sensor (12) are fixed on the nylon sleeve (7) near the inner surface of the fabric sample (13). The utility model provides a reliable analog test instrument for the test field of fabric moisture permeability.

Description

Space micro climate analogue means under a kind of novel clothing

Technical field

The utility model belongs to simulation and measurement mechanism field, particularly relates to space micro climate analogue means under a kind of novel clothing.

Background technology

The simulation of clothes micro climate and test are the important research contents in the clothes comfortableness test, its objective is by simulation to make up microclimate condition between human body and clothes, carry out the research of diathermanous, the saturating performance such as wet of human body comfort and fabric.The key distinction of micro climate instrument and many wet measurement mechanisms is that wet measurement mechanism does not have " space under the clothing " usually, and there be " space under the clothing " between " skin " and " clothes " in the micro climate instrument.The micro climate instrument of at present existing various ways occurs, its common feature all be can measure analog skin and fabric between and the humiture of environment, and the difference of the temperature and humidity conditions by micro climate chamber and environment judges the relation between human body and fabric, the environment, and different mainly is their perspiration system design.Fabric moisture-penetrability measurement mechanism (the Beest V of development such as Van Beest, Simple apparatus to measure watervapor resistance oftextile[J], Text.Res.J, 1986,56 (9): 566-568.), be not the micro climate instrument in principle, when simple transformation can be constructed the micro climate instrument, similar to other micro climate instrument, it uses the microporous barrier fabric as simulated skin, its maximum characteristics are measured vapor transfer rate according to capillary theory exactly, but do not adjust the ability of amount of sweat; The grand department of farmland on a plateau waits micro climate instrument (the grand department of farmland on a plateau, native field and justice, the Nei Shansheng of development, the hot mobility of clothing materials moisture と [J], Japan fibre machinery association will, 1982,35 (5): 203-209.) be to use water container and simulate latent sweat at the poly tetrafluoroethylene that water surface covers 0.38 μ m, and use the 0.6mm copper coin that is covered with the 0.3mm hole to simulate the bigger apparent sweat of amount of sweat, but can not measure amount of sweat; Fabric microclimate instrument (Mu Yao, Shi Meiwu, the Zhang Yixin of development such as Mu Yao, the development [J] of fabric microclimate instrument II type, textile standard and quality, 1991, (6): 30-33.), be on moisture vapor transmission cup, to cover the microporous barrier simulated skin to come the anthropomorphic dummy surface to perspire, measure amount of sweat and the water pump by step motor control keeps the skin wet by the slippage of measuring water level in cup, but can not the ACTIVE CONTROL volume of perspiration, simultaneously there are certain air layer in simulated skin and moisture vapor transmission cup middle water level, and its moist insulating value is the influence that is subjected to air layer; Chen Yuhong etc. have been fundamental construction with hot-plate instrument micro climate instrument (Chen Yuhong, Tang Shijun, Jiang Peiqing etc., a kind of novel fiber heat moisture transmits ability meter, the Tianjin Textile Industry College journal, 1998, V17 (4): 82-86.), but use syringe quantitatively in simulated skin the mode of water filling quantitatively control evaporation capacity, but in experimentation, can influence the stability of experiment along with the minimizing of moisture of skin; Developments such as Cui Huijie can be simulated clothes and human body relative motion, micro climate instrument (Cui Huijie, Shi Hongcai that " space under the clothing " cycle changes, fabric dynamic heat and moisture comfort property vapour phase buffer action tester development [J]. textile journal, 1997,18 (6): 347), it covers simulated skin with hot-plate instrument and makes, and is to make with spraying water that simulated skin is wetting comes simulated human sweat, similarly, its evaporated quantity of water is subjected to the continuous minimizing of moisture content of skin and changes; The Chen Yisong utilization waits the water level principle to design automatic water supply system (Fan J for the micro climate instrument that makes up with surveyor's table that uses under the sub-zero temperature condition, Cheng X and Chen Y S, An experimental investigation ofmoistureabsorption and condensation in fibrous insulations under low temperature, Exp.Therm.Fluid Sci.2003,27 (6): 723-729), back money is known bright utilization siphon principle and has further been improved this water system, but equally can not the active adjustment output; Zhou Xiaohong etc. have developed the micro climate instrument that low temperature environment uses down, and (Zhou Xiaohong, Wang Shanyuan, old youngster are equal, low temperature fabric micro climate tester, textile journal, 2003,24 (5): 54-56), its primary structure also is to be fundamental construction with the moisture vapor transmission cup, use kapillary to measure evaporated quantity of water, use semiconductor cooling device to make a subzero low temperature environment simultaneously, still, its evaporated quantity of water is limited by the saturating moisture performance of simulated skin and fabric, can not the ACTIVE CONTROL volume of perspiration.In sum, existing micro climate instrument mainly is divided into two classes, one class is to be fundamental construction with the moisture vapor transmission cup, another kind of is to be fundamental construction with the surveyor's table, though being arranged, some can measure evaporated quantity of water, but all can not the active adjustment evaporation capacity, actual just can not the active adjustment clothing under the humidity of micro climate, caused limitation for the actual environment of micro climate under the simulation human body clothing.

Summary of the invention

Technical problem to be solved in the utility model provides micro climate analogue measurement device in space under a kind of novel clothing, to solve simulation of garment material water vapour permeability and the problem of measuring under the different microclimate conditions.

The technical scheme that its technical matters that solves the utility model adopts is: space micro climate analogue means under a kind of novel clothing is provided, is made up of micro climate simulated experiment district under nylon base, skin perspiration simulation part, the clothing.Skin simulation perspire part by simulated skin by rubber ring and reinforce the iron ring lock ring on metal dish top, temperature-control senser is fixed in the metal dish side, resistive heater is arranged in the metal dish bottom surface, heat-barrier material is below resistive heater, feed the water of pressure by the space of water pipe between simulated skin and metal dish, water forms simulation sweat vapour by the simulated skin microporous barrier under by the temperature and pressure synergy, a temperature sensor detection of skin temperature is arranged on the simulated skin; Micro climate simulated experiment district places the Simulated Sweating Apparatus top by nylon sleeve under the clothing, and the sample pressure ring is fixed in fabric sample on the nylon sleeve, and humidity sensor and temperature sensor are fixed on the nylon sleeve and are positioned at the fabric sample below; Fixed screw is fixed together metal pressure ring, nylon sleeve, the metal dish of covering perspiration simulated skin, nylon base.

Described metal dish bottom connects feed pipe, and the feed pipe other end is higher than analogue means and is fixed on the metal support, and water level is higher than 0.3～3.0 meter of perspiration simulated skin.

Described fabric sample is fixed on the nylon sleeve by pressure ring and screw, and the sleeve of selection differing heights can change the size in micro climate space.

Beneficial effect

On simulation perspiration skin test device basic, developed the testing tool of a micro climate water vapour permeability.It is with the water supply and the simulation perspiration mode of uniqueness, remedied deficiency and the defective of micro climate instrument aspect the water supply perspiration in the past, not only can be under gentle non-isothermal situation such as inside and outside grade the water vapour permeability of test fabric, can also simulate the situation of the actual dress of human body more really.Utilize this instrument that the Gore-Tex fabric is carried out water vapour permeability test, not only can understand the saturating wet ability of this specific functionality fabric of Gore-Tex, and by with the contrast of other common fabrics, understand the wet comfortableness of dress of Gore-Tex fabric more intuitively.Simultaneously, by the method for testing of new instrument and traditional moisture vapor transmission cup method of testing are carried out correlation research, show that this instrument has strong correlation with the moisture vapor transmission cup method under inside and outside isothermy.In a word, the successful development of this instrument provides a kind of reliable simulation test instrument and method of testing for space fabric moisture-penetrability field tests under the human body clothing.

Description of drawings

Fig. 1 is the utility model structural drawing.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Embodiment 1

Space micro climate analogue means under a kind of novel clothing is made up of micro climate simulated experiment district under nylon base, skin perspiration simulation part, the clothing.Skin simulation perspire part by simulated skin 8 by rubber ring and reinforce iron ring 6 lock rings on metal dish 3 tops, temperature sensor 4 is fixed in metal dish 3 sides, the resistive heater (2) that is used for controlling metal dish (3) bottom heats the water on the metal dish, heat-barrier material 1 plays insulation effect below resistive heater 2, feed the water of pressure by the space of water pipe 15 between metal dish 3 tops and simulated skin 8, water forms simulation sweat vapour by microporous barrier perspiration skin under the temperature and pressure effect, skin temperature transducer 10 is fixed in simulated skin 8 and detects surface temperature; Micro climate simulated experiment district places the top of Simulated Sweating Apparatus by nylon sleeve 7 under the clothing, and sample pressure ring 9 is fixed in fabric sample 13 on the nylon sleeve 7, and humidity sensor 11 and temperature sensor 12 are fixed on the nylon sleeve 7 and are positioned at fabric sample 13 belows; Fixed screw 14 is fixed together metal dish 3, the nylon base 5 of metal pressure ring 9, nylon sleeve 7, covering simulated skin 8.

Utilize a quilt uprightly to be fixed on feed pipe 15 on the support, filled with distilled water in this feed pipe 15, form the pressurization water column as standpipe.Owing to adopt the microporous barrier moisture permeable fabrics as simulated skin 8, therefore when water evaporates away so that the form of sweat gas is continuous from simulated skin 8 surfaces, water in the feed pipe 15 will add under the effect of water column pressure in the metal dish 3 below the simulated skin 8 automatically, evaporate how many water yields so and just replenish into how many water yields, so realized the automatic adjusting and the control of output, need not artificial interference, can not produce a large amount of seeping phenomenons again.Because the height of water pipe middle water level can freely be set, the water column of differing heights will produce the hydraulic pressure of different sizes, under different hydraulic actions, the perspiration speed of perspiration skin is with difference, the surface temperature that the type that changes simulated skin 8 simultaneously and control simulated skin 8 are different also can change perspiration speed.Because the sample of different saturating wet abilities, the water vapour pressure difference that produces in its micro climate district, so caused the difference of water column decline of water table amount, when having realized high wet ability sample testing during big, the low saturating wet ability sample testing of decline of water table amount the decline of water table amount little, the vapor transfer rate of sample directly shows on the height of decline of water table.

Owing to possessed said structure, the test process of simulation micro climate water vapour permeability tester is as follows: water enters in the metal dish 3 under the effect of pressure and is heated during test, the Gore-Tex fabric that simulated skin is used directly contacts with the water surface, moisture content is under the driving of heat and pressure, form with water vapor sees through simulated skin 8, has simulated the situation that human body skin is perspired.The micro climate district of water vapor between sample and simulated skin 8 forms a continuous moist gradient, and under the driving of concentration, water vapor sees through sample and is delivered in the environment.The temperature sensor 4 that is placed in the metal dish 3 is measured the temperature of water, thereby realizes heating-up temperature is accurately controlled, and guarantees the continous-stable of concentration gradient.Utilize temperature and relative humidity variations situation, on test interface, realize the demonstration directly perceived of image data in real time in the experimentation near sample inside surface in the sensor monitors microclimate of sample inside surface.Total vapor transfer rate by test fabric sample 13 can directly be read from the height of decline of water table.

Heat and sweat vapour are from simulated skin surface dissipation under the state of this testing tool simulated human sweat, the overall process of carrying out the wet exchange of heat by air layer, fabric and fabric exterior air layer and environment in the fabric, thus the reflection fabric is to the ability that sees through of water vapor with to the influence of human thermal comfort.The micro climate instrument can estimate the wet resistance of the reality under the condition of wearing according to the measurement to psychrometric difference inside and outside the fabric.Its temperature controlling range is: the simulated skin temperature is 30～50 ℃, and water level can be controlled in 50～2500mmH ₂O.This instrument promptly can test and evaluation fabric stable state under moisture transmission performance, also can measure the DYNAMIC MOISTURE TRANSFER response process in micro climate district simultaneously.Have following characteristics and function:

The temperature of simulated skin 8 can be regulated in room temperature to 50 ℃ scope.

Simulation perspiration system adopts passive way of supplying water, and pressure of supply water can be regulated, thereby realizes the adjusting of skin volume of perspiration.

The vapor transfer rate of fabric can directly record, thereby calculates the wet resistance of fabric under the condition of dress.

Claims (3)

1. A novel space microclimate simulation device under clothing, which is composed of a nylon base, a skin sweating simulation part, and a microclimate simulation experiment area under clothing, and is characterized in that: the skin simulation sweating part is composed of simulated skin (8) The rubber ring and reinforced iron ring (6) are tightened on the upper part of the metal plate (3), the temperature sensor (4) is fixed on the side of the metal plate (3), and the heating resistance wire (2) is arranged on the bottom surface of the metal plate (3). The thermal material (1) is under the heating resistance wire (2), and water with pressure is passed into the space between the simulated skin (8) and the metal plate (3) through the water pipe (15), and the skin temperature sensor (10) is fixed on the on the simulated skin (8); the microclimate simulated experimental area under the clothes is placed above the metal disc (3) covered with the simulated skin (8) of sweating by the nylon sleeve (7), and the sample pressure ring (9) will The fabric sample (13) is fixed on the nylon sleeve (7), the humidity sensor (11) and the temperature sensor (12) are fixed on the nylon sleeve (7) and is located below the fabric sample (13); the fixing screw (14 ) to fix the metal pressure ring (9), the nylon sleeve (7), the metal disc (3) covering the sweating simulated skin (8), and the nylon base (5). 2. A new type of space microclimate simulation device under clothes according to claim 1, characterized in that: the bottom of the metal plate is connected to a water supply pipe (15), and the other end of the water supply pipe (15) is fixed on a metal support, and the water level 0.3-3.0 meters higher than the sweating simulated skin. 3. a kind of novel underclothing space microclimate simulation device according to claim 1, is characterized in that: described fabric sample (13) is fixed on sleeve ( 7) Above, choosing sleeves of different heights can change the size of the microclimate space.

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