JP2017032183A - Humidity conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidity conditioning system capable of allowing a humidity conditioning material inside a chamber to efficiently absorb and release moisture in the air.SOLUTION: A humidity conditioning system 1 includes: a chamber 2 which has an inlet 5 and an outlet 6, and in which a humidity conditioning material 10 is disposed; a first flow passage 3 for supplying high-humidity air A or low-humidity air B to the inlet 5 of the chamber 2 via a switching tool 23; a second flow passage 4 connected to the outlet 6 of the chamber 2; and control means. The control means includes: moisture amount calculation means for acquiring a difference between a moisture amount in the air per unit time supplied from the first flow passage 3 to the inlet 5 of the chamber 2 and a moisture amount in the air per unit time exhausted from the outlet 6 of the chamber 2 to the second flow passage 4; integrated moisture amount calculation means for integrating the differences, and for acquiring the integrated moisture amount absorbed in the humidity conditioning material 10 or the integrated moisture amount released from the humidity conditioning material 10; and switching means for switching the switching tool 23 based on the integrated moisture amount and humidity conditioning capacity of the humidity conditioning material 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a humidity control system, and more particularly, to a humidity control system capable of absorbing moisture in the air into a humidity control material inside the chamber and supplying it to a required place.

  Conventionally, humidity control panels using diatomaceous earth or the like have been widely used on the inner wall surfaces of buildings. For example, when the relative humidity of the air inside the building is high, the humidity control panel can absorb water vapor in the air (hereinafter sometimes simply referred to as “moisture”). Further, when the relative humidity of the air inside the building is low, the moisture contained in the humidity control panel is released into the air. Therefore, the humidity control panel can adjust the humidity inside the building.

JP 2004-76494 A

  Since the humidity control panel as described above passively absorbs and releases moisture according to the amount of moisture contained in the air in the room, it is possible to intentionally control the moisture absorption and release of the humidity control panel. It was difficult. Further, there has been a problem that the moisture absorption / release performance (moisture absorption / release capability) of the humidity control panel is not fully utilized.

  The present invention has been devised in view of the actual situation as described above, and can control the moisture absorption / release of the humidity control material and can effectively exhibit the moisture absorption / release capability of the humidity control material. The main purpose is to provide a simple humidity control system.

  The present invention is a humidity control system, which has an inlet and an outlet, and a humidity control material disposed therein, and the inlet of the chamber has a high relative humidity via a switching tool. A first flow path for supplying high-humidity air or low-humidity air having a low relative humidity; a second flow path connected to the outlet of the chamber; and control means, wherein the control means includes the first flow path. The difference between the amount of moisture in the air per unit time supplied from the flow path to the inlet of the chamber and the amount of moisture in the air per unit time discharged from the outlet of the chamber to the second flow path. Moisture amount calculation means to be obtained, integrated water amount calculation means for integrating the difference and obtaining an integrated water amount absorbed by the humidity control material or an integrated water amount released from the humidity control material, and the integrated water amount And the humidity control capacity of the humidity control material. Characterized in that it comprises a switching means for switching the ingredients.

  In another aspect of the present invention, the humidity control system further includes a first temperature sensor for detecting the temperature of the air in the first flow path, and a humidity for detecting the humidity of the air in the first flow path. A first humidity sensor; a second temperature sensor for detecting the temperature of the air in the second flow path; and a second humidity sensor for detecting the humidity of the air in the second flow path. The amount calculation means calculates the amount of moisture in the air in the first flow path based on the output of the first temperature sensor, the output of the first humidity sensor, and the air volume of the first flow path, and The amount of moisture in the air in the second flow path may be calculated based on the output of the two temperature sensor, the output of the second humidity sensor, and the air volume.

  In another aspect of the present invention, in the moisture absorption mode control in which the high-humidity air is supplied to the first flow path and the moisture conditioning material absorbs moisture, the switching means is integrated by the moisture conditioning material. The switching tool may be switched so that the low-humidity air is supplied to the chamber when the moisture content is equal to or greater than the moisture content that can be absorbed by the humidity control material.

  In another aspect of the present invention, in the moisture release mode control in which the low-humidity air is supplied to the first flow path to release moisture from the humidity control material, the switching unit is configured to integrate the amount released from the humidity control material. The switching tool may be switched so that the high-humidity air is supplied to the chamber when the moisture content is equal to or higher than the moisture content that can be released by the humidity control material.

  In another aspect of the present invention, the chamber includes a case part that divides a space, a heat insulating material arranged inside the case part, and the humidity control material arranged inside the heat insulating material. Can do.

  In another aspect of the present invention, the high-humidity air is outside air, the low-humidity air is air inside the building, and the second flow path is switchably connected to the outside air or the inside of the building. Also good.

  The humidity control system of the present invention has an inlet and an outlet, and a humidity control material is disposed inside the chamber, and high humidity air having a high relative humidity is connected to the inlet of the chamber via a switching tool. Or a first flow path for supplying low-humidity air having a low relative humidity, a second flow path connected to the outlet of the chamber, and control means.

  According to the humidity control system of the present invention, the humidity control material can be absorbed by supplying high-humidity air to the chamber in which the humidity control material is disposed. Further, by supplying low-humidity air to the chamber, moisture absorbed by the humidity control material can be released. Therefore, the humidity control system of the present invention can actively control moisture absorption / release of the humidity control material.

  In the humidity control system of the present invention, as the control means, the amount of moisture in the air per unit time supplied from the first flow path to the inlet of the chamber and the second flow from the outlet of the chamber. Moisture amount calculation means for obtaining a difference from the amount of moisture in the air discharged to the road, and the accumulated moisture amount absorbed by the humidity conditioning material or the accumulated moisture released from the humidity conditioning material by integrating the difference An integrated moisture amount calculating means for obtaining the amount; and a switching means for switching the switching tool based on the integrated moisture amount and the humidity control ability of the humidity control material.

  Therefore, according to the humidity control system of the present invention, when the moisture absorption capability or release capability of the humidity control material is maximized, for example, the air supplied to the chamber is switched to perform optimal moisture absorption / release control. It becomes possible to do.

It is the schematic of the humidity control system which shows one Embodiment of this invention. It is a block diagram which shows embodiment of the control means of this embodiment. It is a flowchart which shows the control procedure of the humidity control system of this embodiment. It is a flowchart which shows the process sequence of the preparation mode control of the humidity control system of this embodiment. It is a flowchart which shows the process sequence of moisture absorption mode control of the humidity control system of this embodiment. It is a flowchart which shows the process sequence of moisture release mode control of the humidity control system of this embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic diagram of a humidity control system 1 of the present embodiment. The humidity control system 1 of the present embodiment includes a chamber 2 in which a humidity control material 10 is disposed, a first flow path 3 that supplies air to the chamber 2, and a second flow through which air exhausted from the chamber 2 flows. And a flow path 4.

  In one embodiment of the present invention, the humidity control system 1 is provided inside a building, for example, and allows the humidity control material 10 to absorb moisture contained in the outside air. The moisture absorbed by the humidity control material 10 is supplied into the building, for example. Thereby, the humidity control system 1 can actively prevent overdrying of the air inside the building, for example, in winter. Of course, the humidity control system 1 of the present invention is not limited to such an embodiment.

  The chamber 2 has an inlet 5, an outlet 6, and a space 7 between them. The first flow path 3 is connected to the inlet 5, and the second flow path 4 is connected to the outlet 6. The chamber 2 of the present embodiment has, for example, a substantially rectangular parallelepiped space 7, but is not limited to such a form.

  The chamber 2 of the present embodiment includes an outermost case portion 8 that divides the space 7, a heat insulating material 9 disposed inside the case portion 8 (space 7 side), and an inner side of the heat insulating material 9 (space 7 side). And a humidity control material 10 directly facing the space 7. In this embodiment, each wall part of the chamber 2 is comprised by such a composite structure. For example, the chamber 2 is preferably housed in a building. Further, the chamber 2 may be configured using a space for joinery, for example, an internal space of a partition wall.

  Since the humidity conditioner 10 is disposed in the space 7 inside the chamber 2, the air passing through the space 7 of the chamber 2 can come into contact with the humidity conditioner 10. Moreover, since the outside of the humidity control material 10 is covered with the heat insulating material 9, it is possible to prevent a change in the temperature of the air in the space 7 of the chamber 2 and thus a change in the relative humidity. In a preferred embodiment, the heat insulating material 9 is preferably a foamed resin board material that does not have a humidity control function.

Although it does not specifically limit as a humidity control material, An inorganic porous material is suitable, for example, 1 type or 2 such as diatomaceous mudstone, diatom shale, allophane, silica gel, imogolite, sepiolite, zeolite, and Oyaishi A mixture of seeds or more is used. The humidity control material is preferably a granular material, and for example, an average pore diameter of 200 angstroms or less and a specific surface area of 20 m ² / g or more are preferable from the viewpoint of high humidity control ability. These humidity-controlling materials may be in a state as produced as natural minerals, or may be baked or modified. Such a humidity control material in the form of granules can be placed inside the chamber 2 by coating the surface of the heat insulating material 9 as a mixture mixed with a binder and drying and solidifying the mixture.

  The first flow path 3 of the present embodiment includes a first duct 21 through which high-humidity air A with high relative humidity flows, a second duct 22 through which low-humidity air B with low relative humidity flows, and a chamber 2 by selectively switching these. And at least a switching tool 23 for supplying to the device. The switching tool 23 and the chamber 2 are communicated with each other through a third duct 24. In the present embodiment, the third duct 24 is provided with a fan 25 for generating an air flow to the chamber 2. For example, the fan 25 is continuously operated with a constant air volume.

  The switching tool 23 is composed of, for example, a three-way damper or the like, and can switch the internal blade 23a to a predetermined position by the power of a motor or actuator (not shown). Thereby, the switching tool 23 can supply either the high humidity air A or the low humidity air B to the third duct 24 on the downstream side. Although not particularly limited, for example, air outside the building, that is, outside air is preferably used for the high-humidity air A, and air inside the building is preferably used for the low-humidity air B, for example. The

  The second flow path 4 of the present embodiment includes at least a fourth duct 27 connected to the outlet 6 of the chamber 2. For example, a switching tool 28 is connected to the downstream side of the fourth duct 27. The switching tool 28 is also composed of, for example, a three-way damper or the like, and can switch the internal blade 28a to a predetermined position by the power of a motor or actuator (not shown). Accordingly, the switching tool 28 can supply the air discharged from the outlet of the chamber 2 to either the fifth duct 29 or the sixth duct 30 on the downstream side. In the present embodiment, the fifth duct 29 communicates with outside air, and the sixth duct 30 communicates with a space (for example, a living room) inside the building.

  In the humidity control system 1 of the present embodiment, the first temperature sensor S1 for detecting the temperature of the air in the first flow path 3 and the first humidity sensor for detecting the relative humidity of the air in the first flow path 3 S2, a second temperature sensor S3 for detecting the temperature of the air in the second flow path 4, and a second humidity sensor S4 for detecting the relative humidity of the air in the second flow path 4 are provided. .

The first temperature sensor S1 and the first humidity sensor S2 are provided in the vicinity of the inlet 5 of the chamber 2, respectively. Thus, the first temperature sensor S1 and the first humidity sensor S2 can detect information T _IN and RH _IN relating to the temperature and relative humidity of the air supplied from the first flow path 3 to the chamber 2, respectively.

Similarly, the second temperature sensor S3 and the second humidity sensor S4 are provided near the outlet 6 of the chamber 2, respectively. Accordingly, the second temperature sensor S3 and the second humidity sensor S4 can detect information T _OUT and RH _OUT related to the temperature and relative humidity of the air discharged from the chamber 2 to the second flow path 4, respectively.

  As shown in FIG. 2, the humidity control system 1 of the present embodiment further includes a control means 40. The control means 40 includes, for example, a central processing unit (CPU) 41, an input port 43, an output port 45, a RAM 46 as a working memory, and a ROM 47 in which a control procedure (program) described later is recorded. It is out.

In the present embodiment, at least the following information (signals) is input to the input port 43, for example.
Information T _IN regarding the temperature of the air in the first flow path 3 from the first temperature sensor S1
Information about the humidity of the air in the first flow path 3 from the first humidity sensor S2 RH _IN
-Information T _OUT on the temperature of the air in the second flow path 4 from the second temperature sensor S3
Information about the humidity of the air in the second flow path 4 from the second humidity sensor S4 RH _OUT

In the present embodiment, the output port 45 outputs at least the following information (signal), for example.
Information D1 for switching the blade 23a of the switching tool 23
Information D2 for switching the blade 28a of the switching tool 28

  FIG. 3 shows an example of a processing procedure by the control means of the humidity control system 1 of the present embodiment configured as described above. In the present embodiment, for example, preparation mode control (ST100), moisture absorption mode control (ST200), and moisture release mode control (ST300) are performed. Hereinafter, it demonstrates in order.

[Preparation mode control]
The preparation mode control (ST100) continuously supplies the low-humidity air B to the chamber 2 for a predetermined time in order to smoothly perform the moisture absorption mode control (ST200) and the moisture release mode control (ST300). It is. Thereby, the water vapor previously absorbed by the humidity control material 10 can be released to the outside substantially completely. An example of such a preparation control mode 100 is shown in FIG.

  As shown in FIG. 4, in the preparation mode control (ST100), the control means 40 outputs a control signal for switching the blades 23a of the switch 23 so that the low-humidity air B is supplied to the chamber 2 (ST101). ).

  Next, the control means 40 outputs a control signal for switching the blades 28a of the switching tool 28 so that the air discharged from the chamber 2 is released to the outside air (ST102).

  Through the above processing, the low-humidity air B is supplied to the chamber 2 via the second duct 22, the switching tool 23, the third duct 24, and the fan 25, and then the fourth duct 27, the switching tool 28, and the fifth. It is discharged to the outside air through the duct 29. At this time, inside the chamber 2, the humidity control material 10 releases the moisture absorbed by itself into the low-humidity air B having a low relative humidity.

  Next, after step ST102, the control means 40 determines whether or not a predetermined time has elapsed (ST103). This fixed time takes into consideration the air volume of the fan 25, the humidity control capacity of the humidity control material 10, and the relative humidity of the low-humidity air B, and the humidity control material 10 releases water almost completely. It is predetermined as the time that will be completed. When the result of step 103 becomes affirmative, the control means 40 ends the preparation mode control (ST100). Thereafter, the moisture absorption mode control (ST200) of FIG. 3 is performed.

[Moisture absorption mode control]
In the moisture absorption mode control (ST200), high humidity air A is continuously supplied to the chamber 2, and the moisture conditioning material 10 that has been almost completely dried by the preparation mode control (ST100) sufficiently absorbs moisture. Control. Further, in the moisture absorption mode control (ST200), in order to make maximum use of the humidity control capability of the humidity control material 10, it is based on the accumulated water amount absorbed by the humidity control material 10 and the humidity control capability of the humidity control material. The completion of the moisture absorption mode is determined. In the moisture absorption mode control (ST200) of the present embodiment, an example is shown in which the air that has passed through the chamber 2 is released to the outside air, but the present invention is not limited to such a mode. FIG. 5 shows an example of a processing procedure performed by the control means 40 in such moisture absorption mode control (ST200).

  As shown in FIG. 5, in the moisture absorption mode control (ST200), the control means 40 first outputs a control signal for switching the blades 23a of the switching tool 23 so that the high-humidity air A is supplied to the chamber 2. (ST201: switching means).

  Next, the control means 40 outputs the control signal which switches the blade | wing 28a of the switching tool 28 so that the air discharged | emitted from the chamber 2 is discharge | released to external air, for example (ST202).

  Through the above processing, in FIG. 1, the high-humidity air A is supplied to the chamber 2 through the first duct 21, the switching tool 23, the third duct 24, and the fan 25, and then the fourth duct 27 and the switching tool 28. And through the fifth duct 29 to the outside air. At this time, in the space 7 of the chamber 2, the humidity control material 10 can contact the high-humidity air A having a high relative humidity, and can absorb the moisture of the high-humidity air A.

Next, the control means 40 reads necessary parameters stored in advance in the ROM 47 into the RAM 46, which is a working memory (ST203). Examples of necessary parameters include the following.
・ Humidity control capacity of the humidity control material 10 (design value of the maximum amount of water that the humidity control material 10 can absorb): W _SET (g)
・ Air flow per unit time of the fan 25: V (m ³ / Δt)

Next, the control means 40 defines a variable n indicating the number of repeated calculations, initializes it to zero, and is a parameter indicating the amount of moisture (g) absorbed by the current humidity control material 10. The accumulated water amount W _n is defined in the RAM 46, and the value is reset to zero (ST204). That is, W ₀ = 0 is defined.

Next, the control means 40 reads the following information (signal) from the various sensors S1 to S4 into the RAM 46 (ST205).
Air temperature on the inlet 5 side of the chamber 2: T _IN (° C.)
Relative humidity of air on the inlet 5 side of the chamber 2: RH _IN (%)
Air temperature at the outlet 6 side of the chamber 2: T _OUT (° C.)
Relative humidity of air on the outlet 6 side of the chamber 2: RH _OUT (%)

Next, the control means 40 supplies the moisture content W _{IN in} the air per unit time supplied to the inlet 5 of the chamber 2 and the moisture content W _{OUT in} the air per unit time discharged from the outlet 6 of the chamber 2. A difference ΔW is obtained (ST206: moisture content calculating means).

In this moisture amount calculating means, first, the volume that is the amount of water vapor in the air per unit time supplied to the inlet 5 of the chamber 2 by the control means 40 based on the temperature and relative humidity of the air previously read. Absolute humidity X _IN (g / m ³ ) and volume absolute humidity X _OUT (g / m ³ ), which is the amount of water vapor in the air per unit time discharged from outlet 6 of chamber 2, are calculated.

Next, using the absolute volumetric humidity X _IN (g / m ³ ), the absolute volumetric humidity X _OUT (g / m ³ ), and the air volume V (m ³ ) of the fan 25 per unit time, as follows: , Water content W _IN (g) in the air per unit time supplied to the inlet 5 of the chamber 2 and water content W _OUT (g) in the air per unit time discharged from the outlet 6 of the chamber 2 Ask for.
W _IN = X _IN × V
W _OUT = X _OUT × V

Next, the control means 40 calculates the difference ΔW (g) between the moisture amounts W _IN and W _OUT .
ΔW = W _IN -W _OUT

The difference between the moisture content W _{IN in} the air per unit time supplied to the inlet 5 of the chamber 2 and the moisture content W _{OUT in} the air per unit time discharged from the outlet 6 of the chamber 2 by the above processing. ΔW (g) is obtained. In the case of the moisture absorption mode control (ST200), the high-humidity air A supplied from the inlet 5 of the chamber 2 is absorbed by the humidity control material 10 in the space 7 of the chamber 2 and discharged from the outlet 6 of the chamber 2. For this reason, the moisture amount difference ΔW (g) calculated in step ST206 usually has a positive value.

Next, the control means 40 integrates the moisture content difference ΔW to the accumulated moisture amount W _n calculated so far to obtain the latest accumulated moisture amount W _{n + 1} (ST207: accumulated moisture amount calculating means). Thereby, the integrated water amount W _{n + 1} absorbed by the humidity control material 10 is obtained at this time.
W _{n + 1} = W _n + ΔW (n: number of calculations)

Next, the control means 40 compares the current integrated moisture amount W _{n + 1} calculated in step ST207 with the humidity control capability W _{SET of the} humidity control material 10. Based on these results, whether or not the cumulative moisture amount W _{n + 1} absorbed by the humidity control material 10 is _{equal to} or higher than the humidity control capability W _{SET of the} humidity control material 10, that is, the humidity control performance (theoretical) of the humidity control material. It is determined whether or not the maximum amount of water that can be absorbed is fully exerted (ST208). In the present embodiment, in step ST208, it is determined whether or not W _{n + 1} ≧ W _SET is satisfied.

In step ST208, when it is determined that W _{n + 1} ≧ W _SET is not satisfied (the humidity control material 10 can further absorb moisture), the control unit 40 adds 1 to the variable n (step ST209), and then step The process after ST205 is executed again, and the process of absorbing the moisture of the high-humidity air A into the humidity control material 10 is continued. On the other hand, if it is determined in step ST208 that W _{n + 1} ≧ W _SET is satisfied (the humidity control material 10 cannot absorb moisture any more), the control means 40 ends the moisture absorption mode control (ST200), and the moisture release shown in FIG. Mode control (ST300) is executed.

According to the moisture absorption mode control (ST200) of the present embodiment as described above, the moisture absorption capacity of the humidity control material 10 can be utilized effectively without waste. In the above-described embodiment, W _{n + 1} ≧ W _SET is set as the determination condition in step ST208. However, various determinations may be made as long as the determination is based on the integrated moisture amount W _{n + 1} and the humidity adjustment capability W _SET of the humidity adjustment material. The following judgment conditions can be adopted. For _{example, W n + 1} is at the stage of a W _SET the example, 90% or more, may be terminated moisture mode control (ST 300).

[Humidity mode control]
As shown in FIG. 3, when the moisture absorption mode control (ST200) is finished, the control means 40 executes the moisture release mode control (ST300). The moisture release mode control (ST300) continuously supplies the low-humidity air B to the chamber 2 and releases water vapor from the humidity control material 10 that has been almost completely absorbed by the moisture absorption mode control (ST200). This is control for increasing the relative humidity. Further, in the moisture release mode control (ST300), in order to make maximum use of the humidity control capability of the humidity control material 10, it is based on the accumulated water amount released from the humidity control material 10 and the humidity control capability of the humidity control material. Thus, the completion of the moisture release mode control is determined. In the moisture release mode control (ST300) of the present embodiment, an example is shown in which the air whose relative humidity has been increased by passing through the chamber 2 is supplied to the inside of the building. It is not limited to. FIG. 6 shows an example of a processing procedure performed by the control means 40 in such moisture release mode control (ST300).

The control section 40, by the foregoing hygroscopic mode control (ST _200), when it is determined that satisfies the _{W n + 1} ≧ _{W SET,} performing the moisture releasing control mode (ST 300). In the moisture release control mode (ST300), the control means 40 first outputs a control signal for switching the blade 23a of the switching tool 23 so that the low-humidity air B is supplied to the inlet 5 of the chamber 2 (ST301: switching means). ).

  Next, the control means 40 outputs the control signal which switches the blade | wing 28a of the switching tool 28 so that the air discharged | emitted from the chamber 2 may be supplied to the inside of a building, for example (ST302).

  Through the above processing, the low-humidity air B inside the building is supplied to the chamber 2 through the second duct 22, the switching tool 23, the third duct 24, and the fan 25 in FIG. It is supplied to the inside of the building again via the tool 28 and the sixth duct 30. At this time, in the space 7 of the chamber 2, the humidity control material 10 comes into contact with the low-humidity air B having a low relative humidity and releases the water vapor held by itself.

Next, the control means 40 reads necessary parameters stored in advance in the ROM 47 into the RAM 46, which is a working memory (ST303). As necessary parameters, as in the case of the moisture absorption mode control (ST200), the humidity control capacity W _SET (g) of the humidity control material 10 in the chamber 2 and the air volume per unit time of the fan 25: V (m ³ / Δt ).

Next, the control means 40 defines a variable n indicating the number of repeated calculations, initializes it to zero, and an integrated moisture amount that is a parameter representing the amount (g) of water vapor released by the humidity control material 10 W _n is defined in the RAM 46, and its value is reset to zero (ST304). That is, W ₀ = 0 is defined.

Next, the control means 40 reads the following information from the various sensors S1 to S4 into the RAM 46 (ST305).
Air temperature on the inlet 5 side of the chamber 2: T _IN (° C.)
Relative humidity of air on the inlet 5 side of the chamber 2: RH _IN (%)
Air temperature at the outlet 6 side of the chamber 2: T _OUT (° C.)
Relative humidity of air on the outlet 6 side of the chamber 2: RH _OUT (%)

Next, the control means 40 supplies the moisture content W _{IN in} the air per unit time supplied to the inlet 5 of the chamber 2 and the moisture content W _{OUT in} the air per unit time discharged from the outlet 6 of the chamber 2. A difference ΔW (g) is obtained (ST306: moisture amount calculation means). The process of the moisture amount calculating means is the same as the process (ST206) described in the moisture absorption mode control (ST200). Therefore, the description here is omitted.

The difference between the moisture content W _{IN in} the air per unit time supplied to the inlet 5 of the chamber 2 and the moisture content W _{OUT in} the air per unit time discharged from the outlet 6 of the chamber 2 by the above processing. ΔW (g) is obtained. In the case of the moisture release mode control (ST300), the low-humidity air B supplied from the inlet 5 of the chamber 2 is mixed with water vapor released from the humidity control material 10 in the space 7 of the chamber 2 and discharged from the outlet 6 of the chamber 2. The For this reason, the moisture amount difference ΔW (g) calculated in step ST306 usually has a negative value.

Next, the control unit 40, by the following equation, a difference ΔW of the water content, so far integrated the calculated accumulated amount of water W _n, we obtain the latest accumulated water content (ST 307: integrated moisture quantity Calculation means). Thereby, the integrated water amount (denoted as _{Wn + 1} ) released from the humidity control material 10 is obtained at the present time.
W _{n + 1} = W _n + ΔW (n: number of calculations)

Next, the control means 40 compares the integrated water amount W _{n + 1} calculated in step ST307 with the humidity control capability W _{SET of the} humidity control material 10. Based on these results, whether or not the accumulated water amount W _{n + 1} released by the humidity control material 10 is _{equal to} or higher than the humidity control capability W _{SET of the} humidity control material 10, that is, the humidity control performance of the humidity control material (theoretically) It is determined whether or not the maximum amount of water that can be absorbed is fully exerted (ST308). In the present embodiment, in step ST308, it is determined whether or not W _{n + 1} ≦ −W _SET is satisfied.

In Step ST308, when it is determined that W _{n + 1} ≦ −W _SET is not satisfied (water still remains in the humidity control material 10), the control unit 40 adds 1 to the variable n (Step ST309). Thereafter, step ST305 and subsequent steps are executed again, and the process of releasing water vapor from the humidity control material 10 to the low-humidity air B is continued. On the other hand, when it is determined in step ST308 that W _{n + 1} ≦ −W _SET is satisfied (when it is determined that the moisture of the humidity control material 10 has been completely released), the control means 40 ends the moisture release mode control (ST300). Then, the moisture absorption mode control (ST200) in FIG. 3 is executed again. Thereafter, the moisture absorption mode control (ST200) and the moisture release mode control (ST300) are alternately repeated.

According to the moisture release mode control 300 of the present embodiment as described above, the moisture stored in the humidity control material 10 can be effectively utilized without waste. In the above embodiment, W _{n + 1} ≦ −W _SET is determined as the determination condition in step ST308. However, if the determination is based on the integrated moisture amount W _{n + 1} and the humidity control capability W _SET of the humidity control material, Various determination conditions can be adopted. For _{example, W n + 1} is at the stage of a W _SET the example, 90% or more, may be terminated moisture mode control (ST 300).

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above, and can be implemented with various modifications.

DESCRIPTION OF SYMBOLS 1 Humidity control system 2 Chamber 3 1st flow path 4 2nd flow path 5 Chamber inlet 6 Chamber outlet 40 Control means

Claims (6)

A humidity control system,
A chamber having an inlet and an outlet, and a humidity control material disposed therein;
A first flow path for supplying high humidity air having a high relative humidity or low humidity air having a low relative humidity to the inlet of the chamber via a switching tool;
A second flow path connected to the outlet of the chamber;
Control means,
The control means includes
The amount of moisture in the air per unit time supplied from the first flow path to the inlet of the chamber and the amount of water in the air per unit time discharged from the outlet of the chamber to the second flow path A moisture amount calculating means for obtaining a difference between
An integrated moisture amount calculating means for integrating the difference and obtaining an integrated moisture amount absorbed by the humidity conditioning material or an integrated moisture amount released from the humidity conditioning material;
The humidity control system characterized by including the switching means which switches the said switching tool based on the said integrated moisture content and the humidity control ability of the said humidity control material. The humidity control system further includes:
A first temperature sensor for detecting the temperature of the air in the first flow path;
A first humidity sensor for detecting the humidity of the air in the first flow path;
A second temperature sensor for detecting the temperature of the air in the second flow path;
A second humidity sensor for detecting the humidity of the air in the second flow path,
The moisture amount calculating means calculates the moisture amount in the air of the first flow path based on the output of the first temperature sensor, the output of the first humidity sensor and the air volume of the first flow path,
The humidity control system according to claim 1, wherein the moisture content in the air in the second flow path is calculated based on the output of the second temperature sensor, the output of the second humidity sensor, and the air volume. In moisture absorption mode control for supplying the high-humidity air to the first flow path and absorbing moisture in the humidity control material,
The switching means is configured so that the low-humidity air is supplied to the chamber when the accumulated moisture absorbed by the humidity-controlling material is equal to or greater than the amount of moisture that can be absorbed by the humidity-controlling material. The humidity control system according to claim 1 or 2, which switches between. In moisture release mode control for supplying the low-humidity air to the first flow path to release moisture from the humidity control material,
The switching means is configured to supply the high-humidity air to the chamber when the accumulated moisture released from the humidity control material is equal to or greater than the amount of moisture that can be released by the humidity control material. The humidity control system according to any one of claims 1 to 3, wherein the switching tool is switched.   The said chamber contains the case part which divides space, the heat insulating material distribute | arranged to the inner side of the said case part, and the said humidity control material distribute | arranged to the inner side of the said heat insulating material. The humidity control system described. The humid air is outside air,
The low-humidity air is air inside the building,
The humidity control system according to any one of claims 1 to 5, wherein the second flow path is switchably connected to outside air or the inside of the building.

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