JPH0795245B2 - Humidity control signal output device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidity control signal output device for generating a start / stop control signal for humidity control equipment such as a dehumidifier, a humidifier, and a heat exchanger.

2. Description of the Related Art In recent years, interest in health and comfort has been increasing, and as a result, suppression of the growth of molds on surfaces such as walls and ceilings is becoming more important.

The conventional humidity control signal output device used to suppress the growth of mold detects and removes the humidity in the indoor space and controls the start and stop of humidity control devices such as humidifiers, heat exchangers, and ventilation fans.

In that case, even if humidity control is performed during heating in winter, dew condensation may partially occur on the walls and ceiling of the building, which may cause mold. As a result, a bad odor or asthma may be adversely affected. Therefore, an appropriate humidity control signal output device for controlling the humidity control device has been desired.

Hereinafter, a conventional humidity control signal output device as described above will be described with reference to the drawings. FIG. 5 shows a conventional humidity control signal output device. The humidity control signal output device is composed of the indoor humidity detecting means 2 and the control means 4a, and controls the operation of the humidity adjusting device 5. The indoor humidity detecting means 2 detects the indoor relative humidity Hr and converts it into an electric signal, and the output signal thereof is the control means.
Transmitted to 4a.

The control means 4a compares the set value with the set value and opens / closes the power source of the dehumidifier which is the humidity adjusting device 5 (not shown) to keep the indoor humidity Hr at the set value. FIG. 6 shows the relationship between the start / stop operation of the dehumidifier and the indoor relative humidity. When the relative humidity in the room becomes higher than the first set value L _{1, the} humidity control signal is turned on and the dehumidifier operates to start dehumidification. Further, when the indoor relative humidity becomes lower than the second set value L ₂ , the dehumidifier stops operating. In this way, the relative humidity in the room was maintained at a constant value near the set value.

Problems to be Solved by the Invention However, with the above configuration, it is difficult to set an appropriate humidity value. When the humidity value is set low, it is more likely to be affected by influenza, and when it is set higher, the surface temperature of parts such as walls and ceilings that are being heated due to the decrease in outdoor temperature in winter, which is easily affected by the outside air temperature. Partly decreases, and the relative humidity of the air in contact with those parts rises, and as a result, mold formation is observed in those parts, and there is a problem that mold odor and susceptibility to asthma are caused thereby. It was

In consideration of the above-mentioned conventional problems, the present invention prevents the condensation on a wall, a ceiling and the like, and outputs a humidity control signal for controlling the start and stop of a humidity adjusting device to suppress the generation of mold. It is an object to provide an output device.

Means for Solving the Problems In order to solve this problem, the humidity control signal output device of the present invention calculates the surface temperature of the wall, the ceiling, etc. by the signals from the indoor temperature detecting means and the outside air temperature detecting means. Means, surface temperature calculation means, surface humidity calculation means for calculating the surface humidity of the wall, ceiling, etc. by signals from the indoor temperature detection means and the indoor humidity detection means, the surface temperature calculation means and the surface humidity calculation The determination means for determining whether or not the signal from the means is within the mold generation condition region,
If the determination means determines that the condition is within the mold generation condition area,
With the configuration for outputting a signal for operating the humidity adjusting device, the determination means is configured in a plurality of surface temperature regions, in each of the surface temperature regions, the corresponding comparison reference humidity is expressed by the surface temperature region. The humidity control signal output device is configured to output a humidity control signal by making a comparison with the surface humidity of a wall or ceiling.

Operation In the above-mentioned configuration, the outdoor temperature, the indoor temperature, and the indoor humidity are detected and output by the three detection means, respectively. The signals of the outdoor temperature and the indoor temperature are input to the surface temperature calculation means to calculate and output the surface temperature of a wall, a ceiling, etc., and the signals of the indoor temperature, the indoor humidity and the surface temperature are used as the surface humidity. The surface humidity of a wall, a ceiling, etc. is calculated by inputting it to a calculation means and output. Next, the determination means, which receives the signals of the surface temperature and the surface humidity, determines the surface environment such as the wall and the ceiling whether or not the condition for the growth of mold is satisfied, and the operation control signal is sent to the humidity adjusting device based on the determination result. Will be emitted.
By controlling the humidity controller in this way, the surface humidity of walls, ceilings, etc. can be adjusted to an environmental level that does not cause mold.

Embodiment An embodiment of the present invention will be described below with reference to the drawings in FIGS. In FIG. 1, an indoor temperature detecting means 1 is an indoor temperature detecting means installed in a room and converts the indoor temperature into an electric signal and outputs it. The indoor relative humidity detecting means 2 is an indoor relative humidity detecting means installed in the room, and converts the indoor relative humidity into an electric signal and outputs it. The outside air temperature detecting means 3 is an outside air temperature detecting means installed outdoors, and converts the outside air temperature into an electric signal and outputs it.

The surface temperature calculation means 6 receives the signal from the outside air temperature detection means 3 and the signal from the indoor temperature detection means 1, calculates the surface temperature T _s of the wall, ceiling, etc. and outputs the signal.

The surface humidity calculating means 12 receives the signal of the indoor temperature detecting means 1, the signal of the indoor relative humidity detecting means 2 and the signal of the surface temperature calculating means 6 to calculate the surface relative humidity H _s of a wall, a ceiling or the like, and outputs the result. To do.

The determination means 7 receives the signals of the surface temperature T _s and the surface relative humidity H _s as input, and determines the ceiling, from the relationship between the temperature and the relative humidity.
It is determined whether the surface temperature / humidity environment of a wall or the like satisfies the mold growth condition. The determined signal is output to the humidity adjusting device 5 such as a dehumidifier or a heat exchanger to control the operation,
The surface of the ceiling will be adjusted to a humidity that will not cause mold.

FIG. 2 is a block diagram showing the internal structure of the judging means 7 in FIG. The determination means 7 will be described with reference to FIG.

The first temperature determination means 8 compares the output signal of the surface temperature calculation means 6 with the internally set first comparison temperature value T ₁ ,
The result is output as two outputs, a forward signal and a reverse signal. The second temperature determination means 9 compares the output signal of the surface temperature calculation means 6 with the second comparison temperature value T ₂ set inside and outputs the result.

The first AND calculation means 10 calculates the AND of the inverse signal of the first temperature judgment means 8 and the second temperature judgment means 9 and outputs the result. The comparison reference humidity calculating means 11 is the surface temperature calculating means 6
Signal and the signal of the first logical product _calculating means 10 are input, and the signal of the comparison reference humidity H _c is output.

The first humidity determining means 13 receives the signal from the surface humidity calculating means 12, and inputs this signal and the first comparative humidity value H ₁ set internally.
And are compared and the result is output. The second logical product calculating means 14 receives the positive output signal of the first temperature judging means 8 and the signal of the first humidity judging means 13 as input, calculates the logical product, and outputs the result.

The second humidity determining means 15 compares the signal of the comparison reference humidity calculating means 11 with the signal of the surface humidity calculating means 12 and outputs the result. The logical sum calculating means 16 calculates the logical sum of the signal of the second humidity determining means 15 and the signal of the second logical product calculating means 14 and outputs the result as a control signal of the humidity adjusting device 5.

Next, the growth conditions of mold will be described prior to the description of the operation.

FIG. 3 shows the temperature and humidity ranges in which mold grows. In the figure, the area inside the dotted line in the area a shows the wet mold, and the area inside the solid line in the area b shows the area where the dry mold grows. According to this figure, the temperature T is T
It can be seen that the mold cannot grow if ≦ 10 ° C. or the relative humidity H is H ≦ 60%. Also the temperature T
Even if the relative humidity H exceeds this range, molds cannot grow if they are smaller than the alternate long and short dash line of the polygonal line C.

In the actual control, the temperature and humidity regions where mold grows are determined, and the surface temperature T _s of the wall, ceiling, etc., surface relative humidity
When H _s is in that region, the humidity adjusting device 5 such as a dehumidifier and a heat exchanger is operated to control the surface temperature T _s of the wall, the ceiling and the like and the surface humidity H _s to values outside the region.

Mold growth is possible under the condition of 10 <T ≦ 25 (℃), and relative humidity H is H> H _c (%) according to Fig. 3 (1) where H _c = −1.8 × T _s +105 (%) (2) In the range of T _s > 25 ° C, H> H ₁ (3) where H ₁ = 60%.

How the above-described configuration operates in response to mold growth conditions will be described.

In FIG. 2, the indoor temperature T _r is detected by the indoor temperature detecting means 1,
Indoor relative humidity detecting means 2 indoor relative humidity H _r at ambient temperature detection means 3 for detecting the outdoor temperature T _o, respectively.

The surface temperature calculation means 6 receives the signal of the indoor temperature T _r from the indoor temperature detection means 1 and the outdoor temperature T _o from the outdoor air temperature detection means 3.
With the signal of and the input, the surface temperature T _s of the wall, ceiling, etc. is obtained by the equation (4).

T _s = T _r + A × (T _o −T _r ) (℃) …… (4) A: Constant determined by the structure of the building, heat insulation performance, weather, etc. the surface temperature T _s is higher when the room temperature T _r is increased, also like lower the outdoor temperature T _o decreases, the outdoor temperature T _o, is affected and there is a variation of the room temperature T _r is calculated each time the variation To be corrected.

The surface humidity calculating means 12 includes a signal of the indoor temperature T _r from the indoor temperature detecting means 1, a signal of the indoor relative humidity H _r from the indoor relative humidity detecting means 2, and a surface such as a wall or a ceiling from the surface temperature calculating means 6. Input the signal of temperature T _{s and} the wall according to equation (5),
Calculate the surface relative humidity H _s of the ceiling etc. by calculation.

H _s = H _r + B (T _r −T _s ) (%) (5) where B: 5% / ° C. Next, the surface temperature T determined by the surface temperature calculation means 6
_s and the surface relative humidity H _s obtained by the surface humidity calculating means 12 are inputted to the judging means 7, and the temperature and relative humidity in the mold growth area described above are determined by the atmosphere of the room wall, ceiling, etc. It is determined whether or not it is inside, and the humidity adjusting device 5 is controlled by an output signal that outputs the determination result.

Next, the internal operation of the determination means 7 will be described.

The first temperature determination means 8 receives the signal of the surface temperature T _s of the wall, the ceiling, etc. from the surface temperature calculation means 6 and the first comparative temperature value T ₁ (shown in FIG. 3) set inside. The result of comparison is output as two outputs, a forward signal and a reverse signal.

Here, T ₁ and T ₂ described next are the temperatures at the two broken points of the broken line C (dotted line) in FIG. The second temperature determination means 9 compares the output signal of the surface temperature calculation means 6 with the internally set second comparison temperature value T ₂ (shown in FIG. 3) and outputs the determination result. The first AND calculation means 10 calculates the AND of the reverse signal of the first temperature determination means 8 and the signal of the second temperature determination means 9. As a result, if the determination condition is satisfied and 1 is obtained, it means that the surface temperature T _s of the wall, the ceiling, etc. is between the first comparative temperature value T ₁ and the second comparative temperature value T ₂ .

The comparison reference humidity calculating means 11 receives the signal of the first logical product calculating means 10 and the signal of the surface temperature calculating means 6, and the output signal of the first logical product calculating means 10 is 1, that is, a surface such as a wall or a ceiling. The temperature T _s is the first comparison temperature value T ₁ and the second comparison temperature value T ₂
When it is in the middle of, the humidity value at the mold growth region limit is calculated from the signal of the surface temperature calculation means 6 using the equation (2).

The first humidity determining means 13 receives the signal from the surface humidity calculating means 12, and inputs this signal and the first comparative humidity value H ₁ set internally.
And are compared and the result is output. Second logical product calculating means 14
Calculates the logical product of the positive signal of the first temperature judging means 8 and the signal of the first humidity judging means 13. If the calculation result is 1, the surface temperature T _s of the wall, ceiling, etc. is higher than the first comparative temperature value T ₁ , and the surface humidity H _s of the wall, ceiling, etc. is also the first comparative humidity value H ₁ It is more difficult to see that it is in the mold growth area.

The second humidity determining means 15 includes a comparison reference humidity signal from the comparison reference humidity calculating means 11, a wall from the surface humidity calculating means 12,
The surface humidity H _s of the ceiling or the like is compared, and if the surface humidity H _s of the wall, the ceiling or the like is large, the determination condition is satisfied and 1 is output.

The logical sum calculating means 16 calculates the logical sum of the signal of the second humidity determining means 15 and the signal of the second logical product calculating means 14, and outputs a control signal to output a humidifier heat exchanger or the like. The temperature adjusting device 5 is driven.

Next, a humidity control signal output device using a microcomputer will be described. In FIG. 2, when the surface temperature calculating means 6, the surface humidity calculating means 8 and the judging means 7 are constituted by a microcomputer, the microcomputer can detect the signal of the indoor temperature detecting means 1, the signal of the indoor relative humidity detecting means 2 and the outside air temperature detecting means. The signal of No. 3 is input, and the humidity control apparatus 5 is controlled by calculating the humidity control signal by the procedure of the flow chart described below and controlling the humidity controller 5. FIG. 4 is a flowchart of the operating procedure of the microcomputer. In FIG. 4, when the power is turned on and the operation is completed and the initialization is over, the steps following the microcomputer are repeated. In the first step S, the signal of the room temperature _Tr from the room temperature detecting means 1 is input to the computer and stored in the memory. Next, in the second S step, the signal of the indoor relative humidity H _r from the indoor relative humidity detecting means 2 is input to the computer and stored in the memory. In the 3S step is stored in the memory by entering the signal of the outside air temperature T _o from the outside air temperature detection means 3 to the computer. In the 4th step S, the surface temperature T _s of the wall, ceiling, etc. is calculated by the equation (4) by the surface temperature calculation means 6 using the input signals of the indoor temperature T _r and the outside air temperature T _o .

In the 5th step, the surface humidity calculating means 12 is used by using the signals of the indoor relative humidity H _r , the room temperature T _r, and the surface temperature T _s of the wall, ceiling, etc.
Wall by equation (5) by a surface relative humidity H _s, such as ceiling
Ask for. Surface temperature of walls, ceiling, etc. in the 6th step
When T _s and the first comparison temperature T ₁ are compared and judged by the first temperature judgment means 8, if the condition of T _s > T ₁ is not satisfied, the result is output as 1 and the process proceeds to the next step. If the conditions are met, jump to the 12th step. Surface temperature of walls, ceiling, etc. in the 7th step
The second temperature determining means 9 compares and determines T _s and the second comparison temperature T ₂ and outputs T _{1 when} the condition of T _s > T ₂ is satisfied, and proceeds to the next step. If the condition is not met, change it first. In the 8th step, the output signal of the 6th step and the signal of the 7th step are logically ANDed by the first AND calculation means 10, and if 1, the surface temperature T _s of the wall, ceiling, etc. is the first comparison temperature. It is between T ₁ and the second comparison temperature T ₂ . In the 9th step, the signal of the surface temperature T _s of the wall, the ceiling, etc. is used, and the comparison reference humidity H _{c is} calculated by the equation (2) by the comparison reference humidity calculating means 11.
Ask for. In the 10th S step, the surface relative humidity H _s of the wall, the ceiling, etc. and the comparative reference humidity H _c are compared and judged by the second humidity judging means 15, and if the condition of H _s > H _c is satisfied, the result is output as 1. This means that it is under conditions where mold can occur. When the condition is not satisfied, the procedure returns to the first step.
In the 12th step, the surface relative humidity H _s of the wall, the ceiling and the like and the first comparative humidity value H ₁ are compared and judged by the first humidity judging means 13, and when the condition of H _s > H ₁ is satisfied, the result is 1 Output.
In the 13th step, the signal of the 6th step and the signal of the 12th step are ANDed by the second AND calculation means 14. If 1, the surface temperature T _s of the wall, ceiling, etc. is higher than the first comparative temperature T ₁ , and the surface relative humidity H _s of the wall, ceiling, etc. is also higher than the comparative reference humidity H _c . This also means that it is under conditions where mold can occur. In the 11th step, the logical sum calculation means 16 calculates the logical sum of the signals of the 10th step and the 13th step and outputs the result as a control signal.

Since this signal includes all the conditions that can cause mold, by controlling the operation of the humidity adjusting device 5 with this signal, it is possible to effectively suppress the generation of mold on walls, ceilings, and the like. .

As described above, according to the present embodiment, the growth of mold on the walls and ceiling of the room can be suppressed, and therefore the bad odor and the adverse effect on asthma can be prevented, which contributes to health.

In the description of the present embodiment, an example in which the relative humidity detecting means 2 is used for indoor humidity detection is shown, but it is clear that the same effect can be obtained by conversion even if the absolute humidity detecting means is used.

EFFECTS OF THE INVENTION As is apparent from the above embodiments, the present invention comprises an indoor temperature detecting means, an indoor relative humidity detecting means, and an outside air temperature detecting means, and inputs signals thereof to the surface temperature and surface humidity of a wall, a ceiling, etc. Is calculated by the surface temperature calculating means and the surface humidity calculating means, and as a result of determining by the determining means whether or not dehumidification is necessary with the signal, a control signal is output,
By controlling the humidity adjusting device, it is possible to prevent mold from forming on the surfaces of walls and ceilings while maintaining the comfort of air conditioning, which is useful for health and hygiene, and its industrial effect is great.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a humidity control signal output device in an embodiment of the present invention, FIG. 2 is a block diagram showing the internal details of the determination means, and FIG. 3 is a mold for temperature and humidity. FIG. 4 is a flow chart showing an operation when the synchronized humidity signal output device is configured by a computer.
The figure is a block diagram showing the configuration of a conventional humidity control signal output device,
FIG. 6 is an operation explanatory view of a conventional humidity control signal output device. 1 ... Indoor temperature detecting means, 2 ... indoor relative humidity detecting means, 3 ... outside air temperature detecting means, 5 ... humidity adjusting device, 6
...... Surface temperature calculation means, 7 ...... determination means, 12 ...... Surface humidity calculation means.

Claims (1)

[Claims] 1. A surface temperature including an indoor temperature detecting means, an indoor humidity detecting means, and an outside air temperature detecting means, and a surface temperature for calculating a surface temperature of a wall, a ceiling or the like based on signals from the indoor temperature detecting means and the outside air temperature detecting means. Calculating means, the surface temperature calculating means, the surface humidity calculating means for calculating the surface humidity of the wall, the ceiling, etc. by the signals from the indoor temperature detecting means and the indoor humidity detecting means, and the surface temperature and the surface humidity are And a determination unit for determining whether or not it is within a mold growth region, and if the determination unit determines that it is within a mold growth region, the determination unit is configured to output a signal for operating the humidity adjusting device. Is composed of a plurality of surface temperature regions, and in each of the surface temperature regions, the corresponding comparison reference humidity is expressed by an equation for each surface temperature region and compared with the surface humidity of the wall, ceiling, etc. Output to humidity signal output device Choshime signal.