JPS6122140A - Ventilation control system - Google Patents

Abstract

PURPOSE:To prevent dew condensation at a surface by a method wherein a moisture absorbing material is arranged at composing member such as batten material and wall material or the like, and a fan or a heater is driven in response to the outputs of a humidity sensor and a temperature sensor. CONSTITUTION:A moisture absorbing material 5 formed by material having high moisture absorbing or releasing characteristic such as Japanese paper, insulation board, hard board or the like is arranged below the composing material 4 having tiles 1, water-proof sheet 2 and battens 3 laid to each other. A humidity of the rear part of the attic is detected by a humidity sensor 10 and a surface temperature of the composing material 4 is sensed by a temperature sensor 11. When the humidity is escaped from the room 12 and moisture is flowed from the clearance, it may be absorbed by the humidity absorbing material 5, a condition of dew condensation at the rear part of the attic 13 is detected by the outputs from the humidity sensor 10 and the temperature sensor 11 so as to drive either a heater 6 or a blower fan 9, resulting in causing the humidity absorbing material 5 to be forcedly heated, dehumidified and causing the air to be discharged so as to control an amount of moisture in the rear part of the attic 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a ventilation control system that controls the amount of moisture in a space using a material with high moisture absorption and release properties.

[Background technology]

BACKGROUND ART In general, structural materials such as roof base materials and wall materials of houses repeatedly absorb and release moisture depending on the surrounding moisture conditions.・Moisture absorption occurs when the ambient temperature drops, and moisture release occurs when the ambient temperature rises.The material itself becomes depressurized or pressurized, and the moisture absorption and release phenomenon repeats. If this phenomenon is repeated in a natural cycle, moisture will be released as the temperature rises during the day, and moisture will be absorbed as the temperature drops at night. At this time, the absolute amount of moisture in the component space increases during the moisture release process, and if there is not a predetermined amount of ventilation, dew will condense on surface members below the dew point. in general#
i. Ventilation holes for natural ventilation are provided to prevent such phenomena, but ventilation effects cannot be expected under weather conditions such as windless conditions during rainy days.

[Purpose of the invention]

According to the purpose of the present invention, Niro uses a moisture absorbing material to absorb the increase in absolute moisture content in spaces such as the attic and closet of a house, and when the environmental conditions are not conducive to condensation on the surface, the surface is ventilated by heating and releasing moisture. The purpose is to prevent dew condensation, prevent decay and rust caused by water in houses, and improve durability.

[Disclosure of the invention]

Generally, domestic water flows into the attic, closet, etc. of a house in the form of water vapor. Figure 1 shows the measured data from the attic ventilation test, where a is the condensation index, b is the dew point temperature in the attic, and C is the temperature of the nails on the roof. As can be seen from Figure 1, 11
From 8 o'clock, the heating in the room caused moisture inside the room to flow into the attic.
The inflow stops when the heating stops at midnight. on the other hand,
As for the condensation state on the material side, the temperature of the nails on the roof surface is lower than the dew point temperature in the attic, as shown in the same figure, and the condensation state is rapidly reached.

The dew condensation index measured by the dew condensation sensor also exceeds the condensation limit of about 1.5V, reaching a dew condensation state. Also, looking at FIG. 1, a1 hides the phenomenon that when there is sunlight during the day, the absolute moisture (dew point temperature) increases and the dew condensation index also increases. This is thought to be due to the inflow of domestic water into the attic, as well as the release of moisture from the attic construction materials.

In view of the phenomenon described above in 1f-1A of the present invention, the temperature and moisture content of constituent materials such as the attic and closet are detected using a temperature sensor and a humidity sensor, and the moisture content in the space as shown in the gI diagram tends to increase. Furthermore, exhaust ventilation is performed under environmental conditions in which the surface temperature of the constituent members is relatively high (strictly speaking, above the dew point temperature). Here, as shown in Figure 2, the moisture content in one space tends to increase, but when the constituent surface material (roofing nail temperature) is low, that is, from 22:00 to 00:00, ventilation further reduces the space temperature. Please be careful as this will promote dew condensation. Note that a-c tj in Figure 2 is the same as in Figure 1,
dtl shows the wind speed.

Example wJ3 Figure is an example in which the present invention is applied to a roof base material, and as shown in Figure 4, tile material (1), waterproof sheet (2),
Japanese paper,
A moisture absorbing material (5) made of a material with high moisture absorption and release properties, such as an insulation board or a hard boat, is provided. (6)
is a heater, and (7) is a blower tact, which has an air inlet (8) at one end and a blower fan (9) at the other end. (lO) is a humidity sensor that detects the humidity in the attic, and a (+11ti temperature sensor) that detects the surface temperature of the component (4). When this occurs, the moisture absorbing material (5) absorbs moisture and the humidity sensor (I (
2) and a temperature sensor (the output of the space (attic) θ
Detects condensation conditions and turns on heater (6) or blower fan (
9) to forcibly heat and dehumidify the moisture absorption material (6) and exhaust it to control the amount of moisture in the space (attic).Also, the same applies to the wall material forming the closet. A moisture absorbing material (6), a heater (6), and a blower fan (9) are provided, and by detecting dew condensation conditions in the closet, the heater (6) or the blower fan (9) can be driven to perform ventilation and control.

〔Effect of the invention〕

As described above, the present invention provides a housing component such as a roof base material and a wall material with a moisture absorbing material made of a material with high moisture absorption and desorption properties such as Japanese paper, insulation board, hardboard, etc., and includes the component material. A humidity sensor that detects the amount of moisture in the space and a temperature sensor that detects the surface temperature of the constituent materials are provided, and the dew condensation conditions in the space are detected and a ventilation fan or
Because it is designed to drive the sun, the moisture absorption material can absorb the increase in absolute moisture content in spaces such as the attic and closet of a house, and it can heat and release moisture under environmental conditions that do not meet the conditions for surface condensation, allowing ventilation to eliminate surface condensation. In addition to preventing rot and rust caused by water in the house and improving durability, it is also possible to improve the efficiency of heating by shifting the ventilation time from the time of the maximum heating load. It is something that plays.

[Brief explanation of the drawing]

Figure 1 shows actual measurement data of an example of changes in moisture content in the attic.
The figure shows actual measurement data of another example same as above, FIG. 3 is a vertical sectional view of a house equipped with an embodiment of the present invention, and FIG. 4 is an enlarged vertical sectional view of section A in FIG. 3. (4)... Constituent material, (5)... Moisture absorbing material, (6)...
・Shita, (7)...Air tact, (lO)...Humidity sensor, (111...Temperature sensor, (13) Space. Agent Patent attorney Ishi 1) Chief 7 Figure 3 Figure 4 Amendment to figure procedure (voluntary) October 8, 1980 Patent application No. 142905'Jij2, name of invention Ventilation control system 3, relationship to the case of person making the amendment Patent applicant's office Kadoma City, Osaka Prefecture Address: 1048 Kadoma, Oaza Name (583) Matsushita Electric Works Co., Ltd. Representative: Iku Kobayashi 4, Agent postal code: 530 5, Date of amendment order: 8, Contents of amendment: As per the attached sheet Correction application number: Patent Application No. 59-142905 1. Specification No. 3
Delete “Figure 1” in the first line of the page and change it to “Figure 1 and 2.”
I will insert "in the figure." 2. Delete "From Figure 1" and insert "From Figure 2" in the 4th line of page 3 of the same page. 3. Delete the entire sentence from ``In addition, in Figure 2'' on the 6th line of the 4th page of the same page to ``It shows.'' on the 7th line of the 4th page of the above.
d in the figure shows the duct wind speed. ” will be inserted. 4. Delete "Moisture-absorbing material (6)" and insert "Moisture-absorbing material (5)" on page 5, page 5'+'r. 5. Figure 3 in the attached drawings has been corrected as shown in attached Figure 3. Agent Patent Attorney Ishi 1) Chief Figure 7 3

Claims (1)

[Claims] (1) Moisture-absorbing materials made of materials with high moisture absorption and desorption properties such as Japanese paper, insulation boards, and hardboards are installed on building materials such as roof base materials and wall materials to reduce the amount of moisture in the space containing the materials. A ventilation control system comprising a humidity sensor for detecting and a temperature sensor for detecting the surface temperature of the constituent material, and detecting dew condensation conditions in the space to drive a ventilation fan or heater. .