CN103257086B - A kind of measurement mechanism of fibrefill fiber assembly moisture transmission performance - Google Patents

Abstract

The invention relates to a measuring device for the wet transfer performance of fiber aggregates, comprising a heat insulation protection seat, a two-stage groove is arranged on the upper part of the heat insulation protection seat, and the lower layer of the groove is a constant temperature water bath, and the constant temperature water bath is fixed The thermal resistance wire is set, the upper liquid surface of the constant temperature water bath is covered with simulated skin, the first temperature sensor and the first humidity sensor are arranged above the simulated skin; the upper layer of the groove is tightly matched with the sample cylinder, and the lower end of the sample cylinder is set There is a mesh interlayer, the inner surface of the sample cylinder is slidably matched with the outer surface of the push cylinder, the upper end of the push cylinder is open, the lower end is provided with a mesh interlayer, and the second temperature sensor and the second humidity sensor are fixed above the mesh interlayer; thermal resistance wire, the first and second temperature sensors, the first and second humidity sensors, the refrigerator and the fan are connected with the control circuit, and connected with the computer through the signal acquisition device for data processing.

Description

A Measuring Device for Moisture Transfer Performance of Flock-Filled Fiber Aggregates

technical field

The invention relates to a device for measuring the moisture-conducting performance, in particular to a device for measuring the moisture-transmitting performance of a wadding fiber aggregate. The invention belongs to the technical field of moisture transfer measurement.

Background technique

When wadding fiber aggregates are used as clothing filling materials, the thermal insulation performance and moisture permeability are the two main performances to be investigated, and the two will have an inseparable mutual influence. Only when clothing, the human body and the environment reach a balance of heat and humidity, can the various organs of the human body be in a comfortable physiological state. The human skin is evaporating and losing water all the time. In a short time, the water evaporated from the skin is exported from the close-fitting layer of the clothing to the outer layer, which can keep the human skin dry and reduce discomfort. The process of losing water involves In the complex system of clothing-human body-environment, the microenvironment between clothing and the human body can be regarded as a microclimate zone. In the microclimate zone, the humidity and water vapor partial pressure will constantly change, which will affect the wet comfort when wearing. sex. However, the strong moisture permeability of clothing can easily take away the heat of the human body, and the warmth retention will be reduced. Filled fiber aggregates are often used to make clothing. Therefore, in order to design garments with good moisture transfer performance, it is often necessary to test the wet transfer performance of the filled fiber aggregates.

At present, there are many test devices for the wet transfer performance of fabrics, but there are few devices specially used for the wet transfer performance of wadding fiber aggregates. The Chinese invention patent with the patent application number 200510024967.4 discloses an in-situ comprehensive measurement method and device for the conductivity of fiber aggregates with variable density. It is done by inputting water vapor with different relative humidity into the measurement cavity through the catheter. The water vapor input in this way contains a certain amount of liquid droplets, and these liquid droplets are easy to attach to the bottom of the fiber assembly, making the material at the bottom absorb water and wet. It is not easy to diffuse upwards, so that the water cannot be transferred to the upper part of the flocculated fiber assembly; the diffusion of water vapor is carried out through the small holes at the bottom of the measuring cavity of the push cylinder, which is different from the evaporation of human body water mainly through the tiny pores of the human skin. The large difference cannot truly imitate the evaporative humidity environment of the human body; the device cannot imitate the microenvironment between the clothing and the human body, let alone measure the moisture conductivity by changing the size of the microenvironment space and simulating the different degrees of tightness of the clothing , there is a difference between the measured moisture conductivity and the actual wearing process of the clothing; in the actual wearing process of the clothing using the fiber-filled aggregate, its moisture conductivity is greatly affected by the ambient air flow velocity, although the device There is an air hole window on the top of the measuring chamber of the pushing cylinder, which can improve the air permeability and moisture permeability in the cylinder through adjustment, but due to the limited number of air hole windows, it cannot be completely unimpeded with the atmosphere, which will affect the transmission speed of water vapor, causing part of the water vapor to stay in the fiber The bottom of the assembly cannot be transferred to the upper part, and the measured moisture conductivity is deviated; although the device is equipped with a refrigerator, its purpose is only to control the temperature of the measurement chamber in a low temperature state, the air convection intensity is low, and the water vapor transfer rate is slow , the test efficiency is low; for the driving part of the pusher, the moving beam is connected with the driving twin-screw, and the motor drive is used to control the movement of the pusher measurement cavity. This kind of transmission structure is relatively complicated and the implementation cost is high; in addition , the bottom of the sample cylinder is sleeved in the lower measurement chamber, and the upper part is hung on the hook of the suspension frame. The test can only be carried out after adjusting the balance of the suspended sample cylinder. The structure is cumbersome and inconvenient to operate; Only the humidity index of the upper and lower measurement chambers can be measured, and the humidity ratio of the upper and lower measurement chambers can only be obtained to qualitatively give the moisture transfer performance of the fiber aggregate, but the accurate moisture conductivity performance index of the moisture resistance of the fiber aggregate cannot be quantitatively obtained .

Contents of the invention

The present invention is an improvement based on the invention patent with application number 200510024967.4 combined with the actual conditions of the wet transfer performance test. The technical problem to be solved in the present invention is:

a. Water vapor with different relative humidity is input into the measuring cavity through the catheter. The water vapor input in this way contains a certain amount of liquid droplets. These liquid droplets are easy to attach to the bottom of the fiber assembly, making the material at the bottom absorb water and wet. It is not easy to diffuse upwards, so that the moisture cannot be transferred to the upper part of the fiber aggregate.

b. The method of water vapor diffusion is quite different from the way of dehumidification of human skin, which cannot truly imitate the microclimate environment of dehumidification of the human body, resulting in poor referenceability of measurement results;

c. It is impossible to imitate the microenvironment between the clothing and the human body, and it is impossible to simulate and measure the moisture conductivity when wearing clothing with different degrees of tightness by changing the size of the microenvironment space. The measured moisture conductivity is consistent with the actual wearing process of the clothing has a difference;

d. The flocculation material has poor direct contact with the outside air, which is quite different from the actual wearing process, resulting in a deviation in the measured moisture transfer performance;

e. The function of the refrigerator is only to control the temperature of the measurement chamber in a low temperature state, without a fan, the air convection intensity is low, the water vapor transmission speed is slow, and the test efficiency is low;

f. The transmission structure of the pusher driving part is relatively complicated, and the implementation cost is relatively high;

g. It is necessary to adjust the balance of the suspended sample cylinder before conducting the test, which is cumbersome and inconvenient to operate;

h. It can only qualitatively give the moisture transfer performance of the fiber aggregate, but cannot quantitatively obtain the moisture resistance of the fiber aggregate, which is an accurate moisture transfer performance index. The reference value of professionalism and measurement results is not high.

The present invention takes the following technical solutions:

A measuring device for the moisture transfer performance of wadding fiber aggregates, comprising a heat insulation protection seat 1, the upper part of the heat insulation protection seat 1 is provided with a two-stage groove, the lower layer of the groove is a constant temperature water bath 2, and the constant temperature The thermal resistance wire 3 is fixedly installed in the water bath 2, and the upper liquid surface of the constant temperature water bath 2 is covered with a simulated skin 4, and the simulated skin 4 is adhered to the inner wall of the thermal insulation protection seat 1 above the liquid surface, above the simulated skin 4 A first temperature sensor 6 and a first humidity sensor 7 are provided; the upper layer of the groove is tightly matched with the sample cylinder 9, and the lower end of the sample cylinder 9 is provided with a mesh interlayer, and its inner surface is in contact with the push cylinder 10. The outer surface is slidingly fitted, the upper end of the push cylinder 10 is open, and a fan 16 and a refrigerator 17 are fixedly installed inside, and a mesh interlayer is arranged at the lower end of the push cylinder 10, and a second temperature sensor 11 and a second temperature sensor 11 are fixedly arranged above the mesh interlayer. Humidity sensor 12, said push tube 10 outer wall is fixedly provided with cylinder hoop 13, and said cylinder hoop 13 is provided with vertical through hole, and screw rod 14 is inserted in said vertical through hole, and through a pair of height adjustment nuts 15 and screw rod 14 is fixedly connected, the screw rod 14 is fixedly connected to the upper end surface of the heat insulation protection seat 1, the pair of height adjustment nuts 15 are adjusted, and the push cylinder 10 moves up and down in the sample cylinder 9; the thermal resistance wire 3 , the first and second temperature sensors 6 and 11, the first and second humidity sensors 7 and 12, the fan 16 and the refrigerator 17 are connected to the control circuit, and are connected to the computer through the signal acquisition device for data processing.

The heat insulation protection seat 1 bottom and all around are made heat insulation protective layer with the plexiglass shell of lining polyurethane foam plastics.

The two-stage groove is cylindrical, and the sample cylinder 9 and push cylinder 10 are both cylindrical.

The thermal resistance wire 3 is an annular copper ring.

The simulated skin 4 is a medical silicone layer.

The first and second temperature sensors 6 and 11 use PN junction temperature sensors.

The first and second humidity sensors 7 and 12 use polymer film humidity-sensitive capacitive sensors.

The fan 16 is a DC fan with a rotating speed of 4500-9000 RPM and a size of 40*40*20mm.

The refrigerator 17 is a miniature vortex tube refrigerator, which can generate cold air instantly. The temperature range of the cold air is -40°C-50°C, and the size is 40*20*40mm.

The sample cylinder 9 and the push cylinder 10 are transparent, heat-insulating high polymers, and the outer wall of the sample cylinder 9 is engraved with a scale.

The technical scheme of the present invention is further described in detail below:

The principle of implementation of the present invention is to imitate the wet action of sweat at one end of the wadding fiber assembly, and imitate the body's dehumidification by simulating human skin. The space between the wadding material 8 and the simulated skin 4 is called the microclimate zone 5. Micro-climate zone 5 is equivalent to the micro-environment between the clothing and the human body, and then tests the moisture transfer performance of the wadding fiber assembly during actual wearing. At the same time, the bulk density of the fiber aggregate can be changed by pressing one end of the fiber aggregate, and the influence of the bulk density on the moisture permeability of the fiber aggregate can be explored.

The present invention uses the water in the constant temperature water bath to imitate the sweat to apply the wet action, and simulates the human body's dehumidification by simulating the human skin, uses the medical silica gel layer to simulate the human skin, and the microclimate zone can imitate the microenvironment between the human skin and the clothing, Change the water depth of the constant temperature water bath 2 to adjust the space size of the microclimate zone, thereby imitating clothing with different degrees of tightness, and measuring the moisture conduction performance when wearing clothing with different tightness, so that the measurement environment is closer to the actual situation when the clothes are worn. The upper part of the push tube is completely open and directly communicates with the atmosphere, which can better imitate the atmospheric environment of the fiber-filled aggregate during actual wearing. The fan arranged on the upper part of the push cylinder can speed up the flow speed of the air and speed up the movement speed of the water transferred to the upper part of the wadding fiber assembly. The refrigerator installed on the upper part of the push cylinder can increase the temperature difference between the two ends of the fiber aggregate, so that the moisture conductivity of the fiber aggregate under different temperature gradients can be measured. The large temperature difference between the two ends of the fiber aggregate helps to improve The rate at which moisture diffuses from the bottom to the top of a fiber-filled aggregate. Use the screw and the nut to cooperate, and the movement of the push cylinder 10 can be controlled by twisting the nut, so as to achieve the purpose of changing the bulk density of the fiber aggregate. The movement of the measuring cavity of the push cylinder is greatly simplified, the use is convenient and the cost is reduced. The sample cylinder is directly clamped on the upper part of the two-stage groove of the heat insulation protection seat, which can achieve balance and stable fixation, eliminating the need to adjust the balance of the sample cylinder, and the structure and use are obviously simplified. By obtaining the temperature measured by the first and second temperature sensors and the humidity measured by the first and second humidity sensors, the moisture resistance is calculated, so as to objectively and accurately quantitatively characterize the moisture conductivity of the wadding fiber assembly.

The beneficial effects of the present invention are:

1) The simulated skin and microclimate zone are set up, which can imitate the microenvironment between human skin and clothing, making the measurement environment closer to the actual wearing of clothing, and improving the reference value of the measurement results.

2) The amount of water injected into the constant temperature water bath is different, and the height of the water surface changes, resulting in different space sizes in the microclimate zone, so that the wet transfer performance of clothing with different degrees of tightness can be measured;

3) The fan can speed up the flow of air and speed up the movement of water transferred to the upper part of the fiber aggregate;

4) The refrigerator and fan can increase the temperature difference between the two ends of the fiber aggregate, so that the moisture conductivity of the fiber aggregate under different temperature gradients can be measured. The large temperature difference between the two ends of the fiber aggregate helps to increase the moisture content. The velocity of diffusion from the bottom to the top of the fiber-filled aggregate;

5) The upper part of the pusher is completely open and directly communicates with the atmosphere, which can better imitate the atmospheric environment of the fiber-filled aggregate during actual wearing;

6) The push cylinder and the heat insulation protection seat are rigidly connected, no need to adjust the balance before use, and the operation is simple;

7) According to the measurement results of the first and second temperature sensors and the first and second humidity sensors, the moisture resistance value can be accurately calculated, and the professionalism and reference value of the measurement results are higher.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a measuring device for the moisture transfer performance of a flocculated fiber aggregate according to the present invention.

FIG. 2 is a schematic top view of FIG. 1 .

Figure 3 is a block diagram of the signal acquisition device.

Among them, 1—heat insulation protection seat; 2—constant temperature water bath; 3—thermal resistance wire; 4—simulated skin; 5—microclimate zone; 6—first temperature sensor; 7—first humidity sensor; 8—sample 9—sample cylinder; 10—push cylinder; 11—second temperature sensor; 12—second humidity sensor;

detailed description

The present invention will be further described below in conjunction with specific examples.

The measuring device is mainly composed of four parts, namely: humidity production area, microclimate area, sample cylinder, push cylinder, control circuit and signal acquisition part.

a. In the humidity production area, the heat insulation protection seat 1 is a cuboid with a cylindrical groove. The cylindrical groove is a two-stage groove. The lower part of the groove is equipped with a constant temperature water bath 2 with a diameter of 20cm. The constant temperature water bath 2 The thermal resistance wire 3 is fixedly installed in the middle, and the thermal resistance wire 3 is a ring-shaped copper ring to ensure uniform and stable heating. The simulated skin 4 is close to the upper liquid surface of the constant temperature water bath 2 and adheres to the upper heat insulation protection seat 1 of the liquid surface. On the inner wall of the skin, the material used for the simulated skin 4 is a medical silica gel layer. The micropores inside the medical silica gel layer are evenly distributed, which is very similar to the pores of human skin, which can well simulate the heat dissipation and moisture dissipation of human skin.

b, the upper part of the simulated skin 4 is a microclimate zone 5, the space area of this zone is small, less affected by external factors, which is conducive to simulating the microenvironment between human skin and clothing, and injecting it into the constant temperature water bath 2 at the same time The water volume is different, and the height of the water surface changes, resulting in different space sizes of the microclimate zone 5, so that the moisture transfer performance of clothes with different degrees of tightness can be measured. The first temperature sensor 6 and the first humidity sensor 7 are fixed in the microclimate zone 5, which can monitor the temperature and humidity in the microclimate zone in real time. The first temperature sensor 6 is a PN junction temperature sensor with high sensitivity. The sensor uses a polymer film humidity-sensitive capacitive sensor, which is small in size and high in sensitivity. The upper part of the two-stage groove is used to ferrule the sample cylinder 9 with a diameter of 21 cm. The bottom and surroundings of the heat insulation protection seat 1 are made of a plexiglass shell lined with polyurethane foam as a heat insulation protection layer, which ensures the stability of the device. Place it while preventing the loss of heat and moisture.

c. The sample cylinder 9 is tightly fitted with the upper layer of the groove, and its lower end is provided with meshes, which are many and dense, which is helpful for the moist air in the microclimate zone to act on the fiber aggregates unimpededly, and the thickness of the cylinder wall is 5mm , the outer diameter is 21cm, the height is 20cm, the material is fully transparent, heat-insulating high polymer, and the scale is engraved on the wall of the cylinder, which can quantitatively control the height of the fiber aggregate, and then control its volume density, so as to achieve different volume densities. Measurement of aggregate moisture transfer properties.

d. Push cylinder 10, the upper part is completely open, directly communicated with the atmosphere, and a fan 16 and a refrigerator 17 are fixed inside. The fan 16 can speed up the flow speed of the air, speed up the water movement speed transmitted to the upper part of the fiber aggregate, and the refrigerator 17 It can increase the temperature difference between the two ends of the fiber aggregate, so that the moisture conductivity of the fiber aggregate under different temperature gradients can be measured. The large temperature difference between the two ends of the fiber aggregate helps to improve the moisture from the fiber aggregate. The velocity of diffusion from the bottom to the top of the body. The bottom of the push cylinder 10 has a mesh interlayer, which can not only transfer heat and moisture well, but also realize the extrusion of the wadding fiber assembly. Its outer diameter is the same as the inner diameter of the sample cylinder 9, which is 20 cm. The thickness is 5mm, the material used is the same as that of the sample cylinder 9, and the mesh is dense and numerous to ensure the smooth movement of the moist air in the sample cylinder 9 and the push cylinder 10, and the second temperature sensor 11 and the second humidity sensor 12 are fixed above the mesh compartment , they are fixed on the push tube 10 and can move up and down with the push tube 10, the materials and specifications selected by the second temperature sensor 11 and the second humidity sensor 12 are the same as the first temperature sensor 6 and the first humidity sensor 7 respectively. The screw 14 is fixed on the heat insulation protection seat 1, and its metric diameter is 10 mm. The height adjustment nut 15 is used in conjunction with it. The cylinder collar 13 for fixing the push cylinder 10 is set on the screw 14, and a pair of height adjustment nuts 15 are respectively fixed on the cylinder collar. The upper and lower sides of the push cylinder 10 are controlled by twisting and changing the height of the height adjusting nut 15 on the screw rod 14, so as to realize the change of the bulk density of the fiber aggregate.

E, control circuit and signal acquisition device are connected with thermal resistance wire 3, the first and second temperature sensors 6,11, the first and second humidity sensors 7,12, fan 16 and refrigerator 17, which are mainly composed of amplifier circuit, converter Composed of a single-chip microcomputer, the amplifying circuit mainly amplifies the weak signal output by the sensor to meet the requirements of the converter for the input signal. The converter converts the amplified analog signal into a digital signal, and the single-chip microcomputer completes signal acquisition, storage, preprocessing, etc.

In order to ensure the accuracy and sensitivity of the measuring device and ensure that the error of the measured data does not exceed the specified range, it is necessary to check the displayed value of the measuring device and the standard value first. The signals transmitted by the first and second temperature sensors 6 and 11 and the first and second humidity sensors 7 and 12 are temperature and humidity after conversion, and the temperature and humidity of the wet-bulb thermometer under standard atmospheric conditions are used as standards. The temperature and humidity are calibrated, and the error after calibration is not greater than 0.1°C and 0.1%.

Referring to Fig. 1, taking wool as an example below, the specific operation steps of the test are as follows:

1. Weigh and record the weight A (g) of the wool sample.

2. Put the wool sample into the sample cylinder, and the volume density of the wool aggregate can be changed by pushing the cylinder up and down.

3. Inject water with a weight of U (g) into the water bath, heat the thermal resistance wire, and when the water temperature in the water bath is stable at 37°C, start recording the first temperature sensor and the first humidity sensor in the microclimate zone The readings of T ₁ (°C) and RH ₁ (%).

4. Turn on the fan switch and cooling switch, and set the fan speed and cooling temperature. When the fan speed and cooling temperature reach the set value, start recording the readings T ₂ (°C) and RH ₂ of the second temperature sensor and the second humidity sensor (%).

5. Every 20s, the computer records each sensor reading.

6. After a certain period of time, take out the wool sample, and immediately weigh the weight A ₁ of the sample and the weight U ₁ (g) of the remaining water in the water bath.

7. Use the following formula to calculate the weight of water vapor evaporated from the water bath E (g), the weight of water condensed on the surface of the fabric B (g) and the weight of water vapor passing through the fabric M (g):

E=UU ₁

B=A ₁ -A

M=E-B

M'=M/t

In the formula: E—the weight of water vapor evaporated from the water bath (g);

U—the weight of water injected into the water bath (g);

U ₁ —the weight of the remaining water in the water bath after the experiment (g);

B—weight of water condensed in the sample (g);

A ₁ - the weight of the sample after the test (g);

A—the weight of the sample before the experiment (g);

M—the weight of water vapor passing through the sample (g);

t—the test time (s);

M'—water vapor evaporation rate through the sample (kg/s).

8. After a period of time, when the temperature and relative humidity at both ends of the sample are stable, read and process the data, and use the following formula to calculate the water vapor pressure and moisture resistance on both sides of the sample when it is stable. The formula for calculating the vapor pressure is as follows:

$\mathrm{<span\; class="notranslate">\; p</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; RH</span>}<span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; 614.3</span>}<span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; exp</span>}<span\; class="notranslate">\; [</span>\mathrm{<span\; class="notranslate">\; 17.06</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 273.15</span>}}{\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; 40.25</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; ]</span>$

In the formula: p—water vapor pressure at temperature T (Pa);

T—temperature (K);

RH—relative humidity (%).

The formula for calculating the moisture resistance of the sample is as follows:

${\mathrm{<span\; class="notranslate">\; R</span>}}_{\mathrm{<span\; class="notranslate">\; et</span>}}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; A</span>}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; in</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; p</span>}}_{\mathrm{<span\; class="notranslate">\; our</span>}}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; m</span>}}^{<span\; class="notranslate">\; \&prime;</span>}}$

In the formula: R _et —wet resistance (m ² .Pa.s/kg);

A—the area of water vapor passing through the sample (m ² );

P _in — water vapor pressure at the bottom of the sample (Pa);

P _out — water vapor pressure at the upper end of the sample (Pa);

M'—water vapor evaporation rate through the sample (kg/s).

9. Read the moisture resistance of the flocculation aggregate through the computer.

Claims (10)

1. A measuring device for wet transfer performance of flocculated fiber aggregates, characterized in that: It includes a heat insulation protection seat (1), the upper part of the heat insulation protection seat (1) is provided with a two-stage groove, the lower layer of the groove is a constant temperature water bath (2), and the constant temperature water bath (2) is fixed The thermal resistance wire (3), the upper liquid surface of the constant temperature water bath (2) is covered with simulated skin (4), and the simulated skin (4) is adhered to the inner wall of the thermal insulation protection seat (1) above the liquid surface, A first temperature sensor (6) and a first humidity sensor (7) are arranged above the simulated skin (4); The upper layer of the groove is tightly matched with the sample cylinder (9), and the lower end of the sample cylinder (9) is provided with a first mesh interlayer, and its inner surface is slidably matched with the outer surface of the push cylinder (10), so that The upper end of the push cylinder (10) is open, and a fan (16) and a refrigerator (17) are fixedly installed inside, a second mesh interlayer is arranged at the lower end of the push cylinder (10), and a second mesh interlayer is fixedly arranged above the second mesh interlayer. A temperature sensor (11) and a second humidity sensor (12), the outer wall of the push cylinder (10) is fixedly provided with a cylinder collar (13), and the cylinder collar (13) is provided with a vertical through hole, and the vertical through hole The screw rod (14) is inserted inside, and fixedly connected with the screw rod (14) through a pair of height adjustment nuts (15), the screw rod (14) is fixedly connected with the upper end surface of the heat insulation protection seat (1), and the adjustment of the A pair of height adjustment nuts (15), the push cylinder (10) moves up and down in the sample cylinder (9); Described thermal resistance wire (3), first, second temperature sensor (6,11), first, second humidity sensor (7,12), fan (16) and refrigerator (17) are connected with control circuit, pass The signal acquisition device is connected with a computer for data processing. 2. The measuring device for the wet transfer performance of wadding fiber aggregates as claimed in claim 1, characterized in that: the bottom and surroundings of the thermal insulation protection seat (1) are protected by a plexiglass shell lined with polyurethane foam plastics layer. 3. The measuring device for the wet transfer performance of flocculated fiber aggregates as claimed in claim 1, characterized in that: the two-stage groove is cylindrical, and the sample cylinder (9), push cylinder (10) Are cylindrical. 4. The device for measuring the moisture transfer performance of the flocculated fiber assembly according to claim 1, characterized in that: the thermal resistance wire (3) is a ring-shaped copper ring. 5. The device for measuring the wet transfer performance of the wadding fiber assembly according to claim 1, characterized in that: the simulated skin (4) is a medical silica gel layer. 6. The device for measuring the moisture transfer performance of the wadding fiber assembly according to claim 1, characterized in that: the first and second temperature sensors (6, 11) are PN junction temperature sensors. 7. The device for measuring the moisture transfer performance of the wadding fiber assembly according to claim 1, characterized in that: the first and second humidity sensors (7, 12) are polymer film humidity-sensitive capacitive sensors. 8. The measuring device for wet transfer performance of fiber-filled aggregates according to claim 1, characterized in that: the fan (16) is a DC fan with a rotation speed of 4500-9000 RPM and a size of 40*40*20mm. 9. The device for measuring the wet transfer performance of the flocculated fiber assembly according to claim 1, characterized in that: the refrigerator (17) is a miniature vortex tube refrigerator with a size of 40*20*40mm. 10. The measuring device of the wet transfer performance of flocculated fiber aggregates as claimed in claim 1, characterized in that: the sample cylinder (9), the push cylinder (10) are transparent, heat-insulating polymers, and the sample cylinder (9) ) with scales engraved on the outer wall.