JPH05288375A - Method and apparatus for detecting humidity of humidifier - Google Patents

Abstract

PURPOSE:To suppress a detection error and to improve a humidity detecting accuracy by calculating humidity of the air to be humidified in a state that a variation in a saturation efficiency is accurately grasped. CONSTITUTION:Humidity detecting means 27, 28 respectively detect temperature th of the air Ah to be humidified and temperature tm of humidified air Am passed through a moisture layer 21. Memory means 25a stores an absolute humidity difference of the air Ah to be humidified and the air Am, mutual change characteristics with a saturation efficiency in the layer 21 and humidity change gradient characteristics of the layer 21. Calculating means 25b obtains the difference of the air Ah and the air Am based on the gradient characteristics, detected temperature th of the air to be humidified and the temperature tm, and calculates relative humidity or absolute humidity of the air Ah based on the difference, the change characteristics and the temperature th. Thus, a detection error can be suppressed, and a humidity detecting accuracy is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidity detecting method and a humidity detecting apparatus in a humidifying device for passing humidified air through a humid layer to humidify the humidified layer.

[0002]

2. Description of the Related Art Conventionally, in the above humidifier, the humidity of the air to be humidified can be detected only by detecting the temperature of the air without using a humidity sensor which is generally expensive and is weak against dew drops and dirt. 4), the humidity change gradient K and the saturation efficiency ηx (= Δx (h) in the wetting layer 21 with respect to the temperature difference between the detected temperature th of the humidifying target air Ah and the detected temperature tm of the humidifying air Am that has passed through the wetting layer 21. -M) / Δx (hp)) is multiplied by a constant coefficient G, that is, Δx (hp −) = G · (th−tm) to obtain the saturated air A at the detected humidified air temperature tm.
Absolute humidity difference Δx (h− between p ′ and humidifying target air Ah
p ′) is obtained approximately, and the detected humidified air temperature tm
Of the saturated air Ap ′ in the above condition, the calculated absolute humidity difference Δx (hp−) is subtracted from the absolute humidity Δxp ′ (data value), that is, xh = Δxp′−Δx (hp ′) The absolute humidity xh of the air Ah is obtained, or the absolute humidity xh of the humidifying target air Ah thus obtained is detected as the absolute humidity xp '' (data value) of the saturated air Ap '' at the humidifying target air temperature th. That is, the relative humidity rh of the heating target air Ah is obtained by removing, that is, rh = (xh / xp ″) · 100 (see JP-A-62-153673).

[0003]

However, the saturation efficiency ηx
(= Δx (hm−m) / Δx (h−p)) changes depending on the temperature / humidity state of the humidification target air Ah. On the other hand, in the above conventional detection mode, the humidification target air Ah and the humidification air. In order to make the coefficient G by which the detected temperature difference from Am (th-tm) is multiplied by a constant value (in other words, the saturation efficiency η
Since the coefficient G is determined by simply assuming x to be a constant value such as 100% or 90%), there is a problem in that the detection error is large in the humidity detection of the target humidification target air Ah, and, in turn, the humidification target. This causes a problem that it is not possible to accurately control the humidity of the humidifying target area based on the detected humidity of the air Ah.

An object of the present invention is to improve the humidity detection accuracy by adopting a rational detection mode in humidity detection based on temperature detection.

[0005]

A first characteristic configuration of a humidity detecting method in a humidifying device according to the present invention is a humidifying device for humidifying air to be humidified by allowing air to be humidified to pass through a humidifying layer.
The temperature of the humidifying target air and the temperature of the humidifying air that has passed through the wetting layer are detected, and the mutual change characteristic between the absolute humidity difference between the humidifying target air and the humidifying air and the saturation efficiency in the wetting layer, and the wetting Recognizing the humidity change gradient characteristics in the layer, obtain the absolute humidity difference between the humidification target air and the humidified air based on the humidity change gradient characteristics and the detected humidification target air temperature and the detected humidification air temperature, and this absolute humidity difference The relative humidity or the absolute humidity of the humidification target air is calculated based on the mutual change characteristic and the detected humidification target air temperature.

The first characteristic configuration of the humidity detecting device in the humidifying device according to the present invention is the humidifying device for humidifying the humidifying target air by allowing the humidifying target air to pass through the humidifying layer and the humidifying target air. Temperature detection means for detecting the temperature of the humidified air passing through, the mutual change characteristics of the absolute humidity difference between the humidification target air and the humidified air and the saturation efficiency in the humidified layer, and the humidity change gradient characteristic in the humidified layer. Storage means for storing, the absolute humidity difference between the humidification target air and the humidification air based on the humidity change gradient characteristics, the detected humidification target air temperature and the detected humidification air temperature, the absolute humidity difference and the mutual change The calculation means for calculating the relative humidity or the absolute humidity of the humidification target air based on the characteristics and the detected humidification target air temperature is provided.

The operation and effect of these first characteristic configurations are as follows.

[0008]

That is, in both the first characteristic configuration of the humidity detecting method and the first characteristic configuration of the humidity detecting device according to the present invention (see FIG. 2), the saturation efficiency ηx with respect to the temperature / humidity change of the humidification target air Ah. In the change, the absolute humidity difference Δx (hm) (in other words, the steam partial pressure difference) between the humidifying target air Ah and the humidifying air Am that has passed through the wetting layer 21 and the saturation efficiency ηx are determined by the specifications of the wetting layer 21. Paying attention to the characteristic that they mutually change with a correlation of, the mutual change characteristic F ηx is calculated by changing the humidity change gradient characteristic K in the wetting layer 21 (for example, in adiabatic humidification, the gradient of an isohumid bulb temperature line or an approximate curve on an air diagram). The air condition changes according to the gradient of the isenthalpy line, which is a characteristic determined by the humidification form), and is stored in the storage means in the humidity detecting device.

As a result, in detecting the temperature of the humidification target air Ah and the humidification air Am that has passed through the wetting layer 21, the temperature difference (th-tm) between the detected temperatures th and tm and the above-mentioned humidity change gradient characteristic K. With, the absolute humidity difference Δx (hm) between the humidifying target air Ah and the humidified air Am can be obtained.

Further, based on this absolute humidity difference Δx (hm) and the above mutual change characteristic Fηx, the saturation efficiency ηx at that time is fixed, and the saturated state is reached by humidification accompanying the passage of the wetting layer. The theoretical absolute humidity difference Δx (hp) between the air Ap and the humidifying target air Ah (that is, the saturation efficiency η
The absolute humidity difference between the humidification target air Ah and the humidified air Ap that has passed through the wetting layer 21 in the ideal state where x is 100% can be obtained.

Then, the absolute humidity difference Δx from the saturated state point Ap when the detected humidification target air temperature th is humidified based on the humidity change gradient characteristic K is the theoretical absolute humidity difference Δx.
The relative humidity rh and the absolute humidity xh of the humidification target air Ah can be calculated in a form of back-calculating the air state point Ah on the detected humidification target air temperature th that is (hp).

[0012]

That is, according to the first characteristic configuration of the humidity detecting method of the present invention, in the humidity detection of the humidification target air based only on the temperature detection of the air without using the humidity sensor,
Since the humidity of the air to be humidified is calculated while accurately grasping the change in the saturation efficiency as in the above-described operation, the detection error can be reduced as compared with the conventional mode in which the saturation efficiency is simply assumed to be a constant value. By suppressing it, the humidity detection accuracy can be greatly improved.

Further, according to the first characteristic configuration of the humidity detecting device of the present invention, the humidity detecting accuracy is greatly improved and the humidity detecting accuracy is greatly improved as compared with the conventional embodiment in the same manner as described above. The humidity of the humidification target air can be automatically calculated.

[Second Characteristic Configuration of the Present Invention] A second characteristic configuration of the humidity detecting method in the humidifying device according to the present invention is that the air to be humidified is heated by the heating means, and the calculated absolute humidity of the air to be humidified. And the relative temperature of the introduced air to the heating means is calculated based on the detected temperature of the introduced air to the heating means, and the introduced air based on the detected humidification target air temperature, the detected introduced air temperature and the output of the heating means. Is detected, and the change in the mutual change characteristic due to the change in air volume is corrected in the humidity calculation based on the detected introduced air volume.

A second characteristic configuration of the humidity detecting device in the humidifying device according to the present invention is that the air to be humidified is the air heated by the heating means, and the calculating means is set to the calculated absolute humidity of the air to be humidified. It is configured to calculate the relative humidity of the introduced air to the heating means based on the detected temperature of the introduced air to the heating means, based on the detected humidification target air temperature, the detected introduced air temperature and the output of the heating means. The air volume detection means for detecting the air volume of the introduced air, and the correction means for correcting the change in the mutual change characteristic due to the air volume change to the humidity calculation by the calculation means based on the detected introduced air volume. is there.

That is, in both the second characteristic configuration of the humidity detecting method and the second characteristic configuration of the humidity detecting device of the present invention (see FIG. 2), the air Ah heated by the heating means 20 is to be humidified. By using air, a large amount of humidification can be secured even when the introduced air temperature ti is low, and freezing trouble in the wetting layer 21 when the introduced air temperature ti is below freezing can be prevented.

In this way, in the mode in which the introduced air Ai is heated and then humidified, since the introduced air Ai is heated by the heating means 20, only the temperature t rises in the state where the absolute humidity x is constant. When the temperature ti of Ai is detected, the temperature is introduced into the heating means 20 based on the detected introduction air temperature ti and the calculated absolute humidity xh of the humidifying target air Ah (air that has passed through the heating means 20) according to the first characteristic configuration. The relative humidity ri of the introduced air Ai can be calculated.

Further, the saturation efficiency ηx of the wetting layer 21 changes depending on the air volume Q of the introduced air Ai (that is, the air volume passing through the wetting layer), so that the mutual change characteristic Fηx also changes with the change of the introduced air volume Q. However, on the other hand, the heating means 20 is rationally used to detect the air volume, and the detected humidifying target air temperature th, the detected introduced air temperature ti, and the heating means 2 are used.
Based on the output H of 0, the air flow rate Q of the introduced air Ai is detected from the following equation, that is, Q = H / (th-ti) .C (C is the specific heat of air), and the humidity is calculated based on this detected air flow rate Q. By adding the correction, the relative humidity ri of the introduced air Ai can always be obtained accurately regardless of the change in the air volume.

[0019]

EXAMPLES Next, examples will be described.

FIG. 1 shows an air conditioning facility for the crop storage room 1, in which almost one side wall of the storage room 1 is used as a blow-out port 2 having a porous structure or a multi-row slit structure, and almost the entire side wall facing the same is the same. The suction port 3 having a porous structure or a multi-row slit structure is used to make the indoor air Ai flow laterally in a laminar manner in the entire room so that the room is uniformly air-conditioned, in other words, the stored crops are uniformly air-conditioned. I am doing it.

Conditioned air As is supplied from the heat pump type air conditioner 4 arranged on one side of the storage chamber 1 to the air outlet 2 via the air supply air passage 5 and the air supply chamber 6 formed in a double wall structure, In addition, the suction air Ar from the suction port 3 is returned to the return air chamber 7
And it is returned to the air conditioner 4 via the return air passage 8.

In the figure, 9 is a circulation fan, D1 to D6 are respectively,
It is a damper, and by operating the opening degree of these dampers D1 to D6, the total circulation system, the partial external air introduction circulation system, and the total external air system can be selectively implemented as the ventilation mode for the storage chamber 1.

An axial fan is used as the circulation fan 9 so that the air flow direction in the storage chamber 1 can be reversed by switching the fan rotation direction between forward and reverse, that is, the outlet 2 is used as a suction port. It is configured such that the suction port 2 can be used as the air outlet.

In each of the air supply chamber 6 and the return air chamber 7, 10 and 11 are air conditioning bodies for making the air blowout distribution at the air outlet 2 and the air intake distribution at the air inlet 3 uniform.

In the air conditioner 4, the indoor unit portion 4A for adjusting the supply air As to the air outlet 2 is the dehumidifying heat exchanger 1
2, heat exchanger 13 for temperature control, and those heat exchangers 12,
13 has a structure in which fans 14 for ventilating the adjustment target air Ar are arranged in series and installed in a wind tunnel 15. On the other hand, the outdoor unit portion 4B has a heat exchanger 16 for absorbing and radiating heat, and
On the other hand, a fan 17 for ventilating the outside air is provided.

As the operation of the air conditioner 4, the following operation is carried out by switching the refrigerant flow form.

With the dehumidifying heat exchanger 12 stopped functioning, the temperature adjusting heat exchanger 13 functions as a condenser, and the heat absorbing / releasing heat exchanger 16 functions as an evaporator. A heating operation in which the heat control heat exchanger 16 absorbs heat from the outside air while the temperature control heat exchanger 13 heats the air.

The dehumidifying heat exchanger 12 and the heat absorbing / releasing heat exchanger 16 function as an evaporator, and the temperature adjusting heat exchanger 1
3 is made to function as a condenser, and while heat is absorbed from the outside air by the heat-absorbing and heat-dissipating heat exchanger 16, the dehumidifying heat exchanger 12 cools and dehumidifies the air, and the cooled dehumidified air is heat-controlled by the heat exchanger 13. Heating and drying operation to reheat temperature.

With the dehumidifying heat exchanger 12 stopped functioning, the temperature adjusting heat exchanger 13 functions as an evaporator, and the heat absorbing / releasing heat exchanger 16 functions as a condenser. A cooling operation in which the heat control heat exchanger 16 radiates heat to the outside air while the temperature control heat exchanger 13 cools the air.

The dehumidifying heat exchanger 12 functions as an evaporator, and the temperature adjusting heat exchanger 13 and the heat absorbing / releasing heat exchanger 1
6 is made to function as a condenser, and while the heat is absorbed and released by the heat exchanger 16 to the outside air, the dehumidifying heat exchanger 12 cools and dehumidifies the air, and the cooled dehumidified air is controlled by the temperature control heat exchanger 13. Cooling and drying operation to reheat temperature.

With the heat exchanger 16 for absorbing and radiating heat stopped, the heat exchanger 12 for dehumidification functions as an evaporator, and the heat exchanger 13 for temperature control functions as a condenser, so that it can be connected to the outside. Dehumidifying heat exchanger 1 with heat transfer
A drying operation in which the air is cooled and dehumidified in 2 and the cooled dehumidified air is reheated in the temperature adjustment heat exchanger 13.

A humidifier 18 is installed in the storage room 1 in contrast to the air conditioner 4 described above, and during heating operation, ventilation operation with the air conditioner stopped, or cooling operation in some cases. In the above, the humidifying device 18 keeps the storage chamber 1 in a desired humidity state.

The humidifier 18 includes a fan 19 and a heater 2.
0 and the humidifying plates 21 are arranged in series in the wind tunnel 22, and the air Ai in the storage chamber 1 is introduced into the wind tunnel 22 by the operation of the fan 19, and the introduced air Ai is supplied to the heater 20 and the humidifying plate. 21 is passed in that order and then returned to the storage chamber 1 from the humidified air discharge port on the other end side of the wind tunnel.

As the humidifying plate 21, a ceramic plate having air permeability and water content is adopted, and the humidifying plate 21 is kept in a water containing and wet state by sprinkling water from the water supply device 23, and the humidifying plate 21 in this wet state is heated by a heater. A so-called vaporization-type water humidification method is adopted, in which the heating air Ah is blown by 20 to evaporate water from the humidification plate 21 by absorbing heat of vaporization from the heating air Ah to humidify the passing air Ah.

Reference numeral 24 is a pan for receiving excess water dropped from the humidifying plate 21, and 23v is an electromagnetic valve for starting and stopping water spraying on the humidifying plate 21.

Reference numeral 25 is a controller of the humidifying device 18, and this controller 25 detects the relative humidity of the introduced air Ai (that is, the room air of the storage chamber 1) based on the air temperature detection at each stage in the passage through the wind tunnel. ri is detected, and the humidifying device 18 is controlled so as to maintain the storage chamber 1 in a desired humidity state based on the relative humidity detection.

26 is a first sensor for detecting the temperature ti of the introduced air Ai, and 27 is heated air Ah after passing through the heater.
Is a second sensor for detecting the temperature th of the above, and 28 is a third sensor for detecting the temperature tm of the humidified air Am after passing through the humidifying plate which is the humidifying layer for humidification.

The storage unit 25a of the controller 25 stores the humidity change gradient characteristics of the humidifying plate 21 and the heated air A.
The mutual change characteristic between the absolute humidity difference Δx (hm) between h and the humidified air Am and the saturation efficiency ηx of the humidifying plate 21, and the characteristic correction coefficient e for the air volume deviation ΔQ are stored together with the state value data of the humidified air. I am allowed to do it.

In this example, the humidification mode is employed in which the air changes its state (Ah to Am) along the isenthalpy line L on the air diagram (see FIG. 2) as it passes through the humidification plate 21. On the other hand, as the humidity change gradient characteristic, specifically, the gradient value K of the isenthalpic line L on the psychrometric chart is stored.

Regarding the above mutual change characteristics, the heated air Ah as the humidification target air to be passed through the humidification plate 21.
In accordance with the change in the state of, the absolute humidity difference Δx (hm) between the heated air Ah and the humidified air Am passing through the humidifying plate 21 and the saturation efficiency ηx are determined by the specifications of the humidifying plate 21 under the set rated air volume condition. The function F ηx indicating the correlation is stored as the above-mentioned mutual change characteristic in response to the mutual change according to the specific correlation, and specifically, as shown in FIG. 3, the heating air Ah and the humidified air Am are stored. Absolute humidity difference Δx (hm) and air Ap when the saturation efficiency is set to 100% and the saturated state is reached by the humidification accompanying the passage of the humidifying plate.
And the theoretical absolute humidity difference Δx (hp) between the heated air Ah and the heated air Ah are stored in the form of a function Fηx having a variable.

In the graph of the function Fηx shown in FIG. 3, the saturation efficiency ηx is expressed as the gradient of the tangent line at each point of the graph Fηx, and the graph shown by the broken line in FIG. 3 shows the above mutual change in the humidifying plate 21 having different specifications. It shows the characteristics.

Regarding the operation control of the humidifying device 18 by the controller 25 (see FIG. 2), the fan 19 is operated and the heater 20 is heated, and the water supplying device 23 sprays water on the humidifying plate 21. In operating condition
Detected heating air temperature th, detected humidified air temperature tm, and
Based on the stored gradient value K as the humidity change gradient characteristic, with the calculation represented by the following equation,

Δx (hm) = K · (th-tp)

An absolute humidity difference Δx (h-m) between the heated air Ah and the humidified air Am is calculated by the arithmetic unit 25b, and the calculated absolute humidity difference Δx (h-m) and a storage function Fηx as a mutual change characteristic. Based on the above, the calculation unit 25b calculates the theoretical absolute humidity difference Δx (hp) in the operating state.

In parallel with this, the air flow rate detection unit 25c in the controller 25 calculates the following equation based on the detected introduction air temperature ti, the detected heating air temperature th, and the heat generation amount H of the heater 20 which is separately detected. By the operation represented in

Q = H / (th-ti) .C (where C is the specific heat of air)

The amount Q of air introduced into the wind tunnel 22 is calculated,

For this air volume calculation, the correction unit 25d in the control unit 25 causes the air volume deviation caused by the occurrence of clogging in the humidifying plate 21, that is, the calculated air volume Q and the set rated air volume Q.
Characteristic correction coefficient e according to the deviation ΔQ (= Q−Qf) from f
Is extracted from the storage unit 25a, and the characteristic correction coefficient e is multiplied by the theoretical absolute humidity difference Δx (hp) as shown in the following equation, so that the change in the mutual change characteristic due to the change in the air volume can be reduced. Correct the theoretical absolute humidity difference Δx (hp).

Δx (hp) (correction value) ← Δx (hp) · e

The saturated state point A when the humidified state is changed from the detected heated air temperature th with the stored gradient value K
A calculation form in which the air state point Ah on the detected heating air temperature th is calculated based on the state value data of the moist air so that the absolute humidity difference Δx with respect to p becomes the theoretical absolute humidity difference Δx (hp) with the above correction. Then, the absolute humidity of heated air Ah at that time xh
Further, when heating with the heater 20, the temperature t rises while the absolute humidity x is constant, whereas the heating air A
In the calculation mode in which the calculated absolute humidity xh of h and the detected introduction air temperature ti are compared with the state value data of the moist air, the calculation unit 25b calculates the relative humidity ri of the introduction air Ai (that is, the indoor relative humidity of the storage room 1). calculate.

In this way, the introduced air A is supplied in parallel with the humidifying operation.
In the sequential calculation of the relative humidity ri of i, when the calculated relative humidity ri rises to the set target value rii, the controller 25 stops the fan 19 and the heater 20 and closes the solenoid valve 23v. Stop the humidifying operation.

When the set interval time ΔT elapses from the time when the humidifying operation is stopped, the controller 25 restarts the operation of the fan 19 and the heater 20 and opens the solenoid valve 23v again to restart the humidifying operation. The humidifying operation is restarted and continued until the calculated relative humidity ri reaches the target value rii.

That is, the stop of the humidifying operation based on the detection of the relative humidity of the introduced air Ai and the restart of the humidifying operation based on the measurement of the set interval time ΔT are alternately repeated until an operation stop command is given. The indoor relative humidity ri of the storage room 1 is adjusted and maintained at a target value rii suitable for the stored crops.

[Other Embodiments] Next, other embodiments will be listed.

The present invention is not limited to the humidification of the crop storage room 1,
It can also be applied to humidification in general air conditioning for people and industrial air conditioning such as spinning factories and clean rooms.

In the humidity calculation, the water vapor partial pressure may be used as the value corresponding to the absolute humidity x, or the ratio of the water vapor partial pressure to the saturated water vapor partial pressure may be used as the value corresponding to the relative humidity r. Needless to say.

Instead of the humidifying method of passing air through the air-permeable humidifying plate 21 in the wet state, a humidifying method using a washer may be adopted, and various types of humidifying moist layers can be adopted.

In the adiabatic humidification, the gradient value of the isenthalpic line L and the gradient value of the constant wet-bulb temperature line in the psychrometric chart are adopted as the humidity change gradient characteristics. However, when hot water is used as the humidifying water, the humidification is experimentally performed. The accompanying air condition change may be made into a function and the function may be stored as the humidity change gradient characteristic.

When the heating means 20 is omitted, the relative humidity rh and the absolute humidity xh of the humidification target air (corresponding to the air Ah in the above-described embodiment) introduced into the humidification layer such as the humidification plate 21 and the washer area are set. The present invention is implemented as the humidity to be detected.

When the mutual change characteristics of the absolute humidity difference Δx (hm) between the humidifying target air Ah and the humidifying air Am and the saturation efficiency ηx are made into a function and stored, the expression form of the function is as in the above-mentioned embodiment. Form (that is, the absolute humidity difference Δx (hm) between the humidifying target air Ah and the humidifying air Am, and the air Ap and the heated air Ah when reaching a saturated state by humidifying with a saturation efficiency of 100%. The absolute humidity difference Δx
It is not limited to (expression form using (hp) as a variable), and various forms of functionalization are possible, for example, simply adopting an expression form using the saturation efficiency ηx as one variable. ..

The above-mentioned mutual change characteristic Fηx relating to the saturation efficiency ηx changes with the change of the air flow rate, however, when the corresponding correction is added to the humidity calculation, the mutual change characteristic Fηx at each air flow rate value is stored in the storage means 25a. Alternatively, the mutual change characteristic Fηx according to the detected air volume Q may be selected and used for the humidity calculation, and various concrete correction forms for the air volume change can be changed.

On the contrary, it is also possible to adopt a mode in which the output of the fan 19 is adjusted based on the detection of the air volume so as to maintain the air volume Q at a constant value.

The humidification amount may be adjusted by adjusting the output of the heating means 20.

The humidifying device 18 may be installed in each part in a large space such as a warehouse or a hall to adjust the humidity in each part.

In carrying out the humidity detecting method of the present invention, the temperature th of the humidifying target air Ah, the temperature tm of the humidifying air Am, the temperature ti of the introduced air Ai, the mutual change characteristic Fηx relating to the saturation efficiency ηx, and the wetting. The humidity change gradient characteristic K in the layer 21 may be recognized, and the humidity calculation may be performed by artificial calculation based on them.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a device configuration diagram shown in an installed state in a storage room.

[Figure 2] Pneumatic diagram

FIG. 3 is a graph showing characteristics regarding saturation efficiency.

FIG. 4 is a psychrometric chart explaining a conventional humidity detection mode.

[Explanation of symbols]

 20 Heating Means 21 Wetting Layer 25a Storage Means 25b Computing Means 25c Air Volume Detection Means 25d Correction Means 26 Temperature Detection Means 27 Temperature Detection Means 28 Temperature Detection Means Ah Humidification Target Air Ai Introduced Air Am Humidified Air Fηx Mutual Change Characteristics H Heating Means Output K Humidity change gradient characteristics Q Air flow rate rh Humidification target air relative humidity ri Introduced air relative humidity th Humidification target air temperature ti Introduced air temperature tm Humidification air temperature xh Humidification target air absolute humidity Δx (h-m) Absolute humidity difference ηx Saturation efficiency

Claims (4)

[Claims] 1. A humidifying layer (21) for humidifying target air (Ah).
A method for detecting humidity in a humidifying device for humidifying air by passing it to a temperature (th) of air (Ah) to be humidified, and a temperature (tm) of humid air (Am) that has passed through the wetting layer (21).
And a mutual change characteristic (Fηx) between the absolute humidity difference (Δx (hm)) between the humidified air (Ah) and the humidified air (Am) and the saturation efficiency (ηx) in the wetting layer (21). , And the humidity change gradient characteristic (K) in the wet layer (21) is recognized, and based on the humidity change gradient characteristic (K), the detected humidification target air temperature (th), and the detected humidification air temperature (tm). To obtain the absolute humidity difference (Δx (h-m)) between the humidification target air (Ah) and the humidified air (Am), and the absolute humidity difference (Δx (h-m)) and the mutual change characteristic (Fηx). And the relative humidity (rh) of the humidification target air (Ah) based on the detected humidification target air temperature (th), or
A method for detecting humidity in a humidifier that calculates absolute humidity (xh). 2. The air to be humidified (Ah) is heated by a heating means (20) to obtain the air to be humidified (Ah).
Based on the calculated absolute humidity (xh) of h) and the detected temperature (ti) of the air introduced into the heating means (20) (ti), the relative humidity of the introduced air (Ai) into the heating means (20) ( ri) is calculated, and the detected humidification target air temperature (th) and the detected introduction air temperature (t
i) and the output (H) of the heating means (20), the air volume (Q) of the introduced air (Ai) is detected, and the detected introduced air air volume with respect to the change of the mutual change characteristic (Fηx) due to the air volume change. The humidity detecting method in the humidifying device according to claim 1, wherein the humidity calculation is corrected based on (Q). 3. A humidifying layer (21) for humidifying target air (Ah).
A humidity detection device in a humidifying device that passes and humidifies the humidified air (Ah), and the temperature (tm) of the humidified air (Am) that has passed through the wetting layer (21).
Temperature detection means (27) and (28) for detecting the temperature difference, the absolute humidity difference (Δx (hm)) between the humidifying target air (Ah) and the humidifying air (Am), and the saturation efficiency in the wetting layer (21). (Ηx) Mutual change characteristic (Fηx) and storage means (25a) for storing the humidity change gradient characteristic (K) in the wetting layer (21), the humidity change gradient characteristic (K) and detected humidification. The absolute humidity difference (Δx (hm)) between the humidifying target air (Ah) and the humidified air (Am) is calculated based on the target air temperature (th) and the detected humidified air temperature (tm), and the absolute humidity difference is calculated. (Δx (h
-M)), the mutual change characteristic (Fηx), and the detected humidification target air temperature (th) based on the humidification target air (Ah).
Humidity detector in a humidifier provided with a calculation means (25b) for calculating relative humidity (rh) or absolute humidity (xh). 4. The humidifying target air (Ah) is air heated by a heating means (20), and the calculation means (2).
5b) is the calculated absolute humidity (x) of the air to be humidified (Ah)
The relative humidity (ri) of the introduced air (Ai) to the heating means (20) is calculated based on h) and the detected temperature (ti) of the introduced air (Ai) to the heating means (20). The detected humidification target air temperature (th) and the detected introduction air temperature (t
i) and an air volume detection means (25c) for detecting the air volume (Q) of the introduced air (Ai) based on the output (H) of the heating means (20), and the mutual change characteristic (Fηx) due to the air volume change. The humidity detecting device in the humidifying device according to claim 3, further comprising a correcting means (25d) for correcting the humidity calculation by the calculating means (25b) on the basis of the detected introduced air volume (Q).