JP2019211140A - Dew condensation prevention device - Google Patents

Abstract

To provide a dew condensation prevention device that can prevent dew condensation at such as a wall without oppressing a living space.SOLUTION: A dew condensation prevention device: a compressor; a pressure container for storing air compressed by the compressor; a ventilation pipe for transporting and blowing out air that flows out from the pressure container to a clearance between a wall, ceiling or floor that faces outdoor and furniture disposed indoor; and an on-off valve for opening or closing a ventilation passage that is formed by the ventilation pipe.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dew condensation prevention device for preventing dew condensation that occurs on a wall or the like that forms a living space by dividing outdoor and indoor.

  In recent years, housing insulation has been highly insulated, and the wall surface, ceiling, or floor facing outdoors has almost the same room temperature as room temperature, and heat leakage through the wall, ceiling, or floor has become extremely small. ing.

  When installing furniture such as furniture in a living space, it is common to install the furniture in contact with a wall so as not to narrow the living space as much as possible. When the fixture is installed in contact with the wall, the fixture exhibits a heat insulating effect, and heat leakage at the installation location is further reduced. On the other hand, the gap between the fixture and the wall is in a semi-sealed state, restricting the movement of air, and is thermally separated from the indoor space. However, since the gap between the fixture and the wall is not completely cut off from the room air, the dew point temperature in the gap is equal to the dew point temperature of the room air. In this state, when the outdoor temperature decreases, only the gap between the fixture and the wall continues to be cooled, and the temperature of the gap decreases to a temperature close to the outside air temperature. As a result, the temperature of the gap may be lower than the dew point temperature, and condensation may occur on the back surface of the fixture or the inner surface of the wall forming the gap.

  In order to avoid such a problem, it is known to adjust the temperature of the gap between the fixture and the wall by disposing a blower or a heater between the fixture and the wall. For example, in Patent Document 1, a box with a built-in blower is installed between a fixture and a wall, indoor air is sucked in from the upper portion of the box, and blown out from the lower portion of the box, so that the room is placed in the space behind the fixture. A ventilation device for preventing condensation that circulates air has been proposed.

JP-A-8-42883

  However, in the configuration described in Patent Document 1, since it is necessary to provide a blower and an air passage on the back side of the fixture, the fixture is pushed closer to the living space. As a result, the living space is compressed and there is a risk of impairing comfort.

  This invention is for solving the above subjects, and provides the dew condensation prevention apparatus which can prevent the dew condensation which arises on a wall etc., without pressing a living space.

  The dew condensation prevention device of the present invention is disposed in a compressor, a pressure vessel that stores air compressed by the compressor, air that has flowed out of the pressure vessel, and a wall, ceiling, or floor facing outdoors. A ventilation pipe that is blown out between the airframe and an open / close valve that opens or closes the ventilation path formed by the ventilation pipe.

  According to the present invention, the air that flows out from the pressure vessel is transported and provided with a ventilation pipe that blows out between a wall facing the outdoors, a ceiling or floor, and a fixture placed indoors. The gap can be narrowed and condensation can be prevented without pressing the indoor space.

It is a schematic block diagram of the dew condensation prevention apparatus in embodiment. It is a figure which shows arrangement | positioning of the ventilation pipe in embodiment. It is a figure which shows installation of the dew condensation prevention apparatus in embodiment. It is a flowchart which shows operation | movement of the dew condensation prevention apparatus in embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one. In addition, in the following drawings including FIG. 1, the same reference numerals denote the same or corresponding parts, and this is common throughout the entire specification. Furthermore, the forms of the constituent elements shown in the entire specification are merely examples, and are not limited to these descriptions. In addition, throughout this specification, the term “prevention” includes not only complete prevention but also suppression.

  FIG. 1 is a schematic configuration diagram of a dew condensation prevention apparatus 100 according to an embodiment of the present invention. As shown in FIG. 1, the dew condensation prevention device 100 includes a compressor 3, a pressure vessel 4, an on-off valve 5, a pressure switch 6, a timer 7, a connection pipe 8, and a ventilation pipe 9. The compressor 3, the pressure vessel 4, the on-off valve 5, the pressure switch 6, and the timer 7 are compressed air generation means in the dew condensation prevention device 100 and are accommodated in the housing 1. The connection pipe 8 and the ventilation pipe 9 are compressed air conveying means in the dew condensation prevention device 100, and are provided so as to extend from the housing 1 to a region to be subjected to dew condensation prevention.

  The compressor 3 sucks air from the suction port 2 formed in the housing 1 and compresses it. The pressure vessel 4 stores the air compressed by the compressor 3. The pressure vessel 4 is a vessel having a volume of about 500 cc, for example. The pressure switch 6 detects the pressure in the pressure vessel 4 and transmits a stop signal to the compressor 3 when the pressure in the pressure vessel 4 exceeds a predetermined first pressure, and the pressure in the pressure vessel 4 becomes the first pressure. When the pressure falls below a predetermined second pressure that is smaller, the control device transmits an operation signal to the compressor 3. By the pressure switch 6, the pressure vessel 4 is always maintained at the first pressure. The first pressure is, for example, 1.3 atm, and the second pressure is, for example, 1.05 atm. The first pressure and the second pressure may be set in advance or may be changed by the user.

  The on-off valve 5 is provided at the outlet of the pressure vessel 4 and opens and closes by an electrical on signal or off signal from the timer 7. When the opening / closing valve 5 is opened, the ventilation path formed by the connection pipe 8 and the ventilation pipe 9 is opened, and when the opening / closing valve 5 is closed, the ventilation path is closed. The timer 7 is a control device that periodically opens the on-off valve 5. Specifically, the timer 7 transmits an ON signal to the on-off valve 5 during a predetermined opening time every predetermined opening cycle. The opening cycle is a cycle at which the timer 7 starts to transmit the ON signal, and is, for example, 1 hour. The opening time is a time for which the timer 7 continues to transmit the ON signal, and is, for example, 10 seconds. From the elapse of the opening time until the next opening cycle, an off signal is transmitted from the timer 7. The opening period and the opening time may be set in advance or may be changed by the user. In another embodiment, the pressure switch 6 and the timer 7 are both a sensor and a CPU (Central Processing Unit, central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, and processor that execute a predetermined program. You may comprise in combination.

  The connection pipe 8 is, for example, a circular pipe having an outer diameter of 10 mm or less, and one end is connected to the outlet of the pressure vessel 4 and the other end is connected to the ventilation pipe 9. The ventilation pipe 9 is, for example, a circular pipe having an outer diameter of 10 mm or less, and one end is connected to the connection pipe 8 and the other end is opened. As the connection pipe 8 and the ventilation pipe 9, for example, a polyethylene tube is used. When the on-off valve 5 is opened, compressed air flows out from the pressure vessel 4, flows into the ventilation pipe 9 through the connection pipe 8, and is blown out from the open end of the ventilation pipe 9. In addition, the ventilation pipe 9 may be provided with an outlet for blowing out compressed air instead of or in addition to the open end.

  FIG. 2 is a diagram showing the arrangement of the ventilation pipes 9 in the present embodiment. As shown in FIG. 2, the ventilation pipe 9 of the dew condensation prevention device 100 is built in the skirting board 20. The skirting board 20 has a rectangular parallelepiped shape with a thickness of about 10 mm or less, and the inside is hollow. On the upper surface of the skirting board 20, a slit-like outlet 21 for blowing out air is formed. When air is blown out from the open end of the ventilation pipe 9, the space inside the skirting board 20 is pressed and air is blown out from the blowout port 21. A plurality of outlets 21 may be formed on the upper surface of the skirting board 20 or may be formed on the side surface of the skirting board 20. Moreover, it is good also as a structure which can open and close the blower outlet 21. FIG.

  FIG. 3 is a diagram showing installation of the dew condensation prevention apparatus 100 in the present embodiment. As shown in FIG. 3, the baseboard 20 in which the ventilation pipe 9 was incorporated is installed in the part which touches the floor surface of the wall 30 facing the outdoors of a living space. And the furniture 40 is arrange | positioned so that the baseboard 20 may be contact | connected. The fixture 40 is, for example, a clothes basket. 2, in order to show the clearance gap between the fixture 40 and the wall 30, the fixture 40 is permeate | transmitted and shown.

  The housing 1 that houses the compressor 3, the pressure vessel 4, the on-off valve 5, the pressure switch 6, and the timer 7 of the dew condensation prevention device 100 is disposed, for example, in the vicinity of a portion that contacts the ceiling of the wall 30. The connection pipe 8 is connected to the ventilation pipe 9. The housing | casing 1 should just be arrange | positioned in places other than the position shown in FIG. 3, such as a ceiling or a floor, which does not compress living space.

  FIG. 4 is a flowchart showing the operation of the dew condensation prevention apparatus 100 in the present embodiment. First, when the dew condensation prevention apparatus 100 starts operation, it is assumed that the on-off valve 5 is closed (S1). Then, the compressor 3 is operated, and the indoor air sucked from the suction port 2 is compressed (S2). Thereby, compressed air is stored in the pressure vessel 4. And pressurization is continued until the pressure inside the pressure vessel 4 exceeds the first pressure (S3: NO). When the pressure inside the pressure vessel 4 exceeds the first pressure (S3: YES), the compressor 3 is stopped by an OFF signal from the pressure switch 6 (S4).

  Thereafter, the timer 7 starts measuring time (S5), and waits until the open cycle elapses (S6: NO). When the opening cycle elapses (S6: YES), an ON signal is transmitted from the timer 7 to the on-off valve 5, and the on-off valve 5 is opened (S7). Thereby, the compressed air in the pressure vessel 4 flows into the ventilation pipe 9 through the connection pipe 8, and air is blown out from the outlet 21 of the skirting board 20 by the air blown out from the ventilation pipe 9. As a result, an air flow due to room air is generated in the gap between the wall 30 and the fixture 40, and the stagnant air in the gap between the wall 30 and the fixture 40 is agitated. The on-off valve 5 is kept open until the opening time elapses (S8: NO).

  When the opening time has elapsed (S8: YES), an off signal is transmitted from the timer 7 to the on-off valve 5, and the on-off valve 5 is closed (S9). Then, the measurement time of the timer 7 is reset (S10). Since the on-off valve 5 is opened in step S7, the pressure in the pressure vessel 4 is atmospheric pressure, that is,. It has dropped to below 05 atm. Therefore, it returns to step S2 and the pressure vessel 4 is pressurized again, and the subsequent steps are repeated, whereby air is blown out from the outlet 21 of the skirting board 20 for each open cycle.

  As described above, the dew condensation prevention apparatus 100 according to the present embodiment periodically stirs indoor air by blowing it into the semi-enclosed space, for example, once an hour. Thus, for example, even when the air in the gap between the wall 30 and the fixture 40 is cooled due to a decrease in the outside air temperature, the room air is blown out and stirred, so that the same temperature as the room air can be obtained, and condensation is prevented. Is done.

  Here, it is necessary to provide a gap of about 50 mm to 100 mm in order to provide sufficient thermal communication between the air between the wall 30 and the fixture 40 and the room air due to natural convection or the influence of circulating air blown by air conditioning equipment. is there. On the other hand, in the present embodiment, the ventilation pipe 9 having an outer diameter of 10 mm or less is built in the skirting board 20 to convey the compressed air, and therefore the gap between the wall 30 and the fixture 40 may be 10 mm. . Thereby, the furniture 40 can be installed close to the wall 30, the indoor space is not compressed, and comfort is not impaired.

  In addition, since the compressed air is conveyed by the ventilation pipe 9, it becomes possible to generate a high-speed jet in the gap between the wall 30 where the air is hardly agitated and the fixture 40, effectively eliminating the retention of cold air. can do.

  Further, dust or dust accumulated in the gap between the wall 30 and the fixture 40 can be prevented from being deposited by intermittently deriving the jet into the gap between the wall 30 and the fixture 40. As a result, a more hygienic environment can be formed.

  In addition, by operating the compressor 3 for each open cycle and increasing the pressure in the pressure vessel 4, the operation time per operation of the compressor 3 can be shortened to about several tens of seconds. Further, since the gap between the wall 30 and the fixture 40 is slowly cooled by the indoor surface of the wall 30 that is slightly cooler than the room air, the time required for temperature reduction is long, and the opening cycle is, for example, 1 hour. can do. And when an open period is 1 hour, the operation rate of the compressor 3 becomes small with about 1%. Therefore, compared with the case where the air blower or heater which operates normally is installed in the clearance gap between the wall 30 and the fixture 40 in order to prevent dew condensation, power consumption can be reduced.

  As described above, according to the dew condensation preventing apparatus 100 in the present embodiment, it is possible to blow and agitate the gap between the wall 30 and the furniture 40, where condensation is likely to occur in winter, with little energy. Moreover, by making a ventilation path into a pipe of 10 mm or less, the space | interval of the wall 30 and the fixture 40 can be narrowed, and it becomes possible to prevent dew condensation effectively, without compressing living space.

  The above is the description of the embodiments of the present invention. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, it is good also as a structure which arrange | positions the ventilation pipe 9 in the semi-sealed space formed between the ceiling or floor which faces the outdoors, and the furniture 40 or another thing, and blows off air. In this case as well, by generating an air flow in the semi-enclosed space, it is possible to prevent condensation on the ceiling or floor, or the fixture 40 or other objects.

  Moreover, in the said embodiment, although the dew condensation prevention apparatus 100 was set as the structure provided with one ventilation path, it is not limited to this, It is good also as a structure provided with a some ventilation path. Specifically, the compressed air stored in the pressure vessel 4 may be branched from the connection pipe 8 to a plurality of ventilation pipes 9. Thereby, the dew condensation in the gaps between the plurality of furniture 40 and the wall 30 or the ceiling can be prevented without providing compressed air generating means for each furniture 40. Thereby, securing of a power supply and simplification of electrical wiring can be realized. Furthermore, since only the ventilation pipe 9 needs to be moved when the fixture 40 is moved, the workability is improved.

  DESCRIPTION OF SYMBOLS 1 Case, 2 Inlet, 3 Compressor, 4 Pressure vessel, 5 On-off valve, 6 Pressure switch, 7 Timer, 8 Connection pipe, 9 Ventilation pipe, 20 Skirting board, 21 Outlet, 30 Wall, 40 Furniture, 100 Anti-condensation device.

Claims (5)

A compressor,
A pressure vessel for storing air compressed by the compressor;
A ventilation pipe that conveys air that has flowed out of the pressure vessel and blows out between a wall, ceiling, or floor facing outdoors and a fixture placed indoors;
An on-off valve that opens or closes the ventilation path formed by the ventilation pipe;
Condensation prevention device.   The dew condensation prevention device according to claim 1, wherein the on-off valve periodically opens the ventilation path.   The dew condensation prevention device according to claim 1 or 2, wherein the ventilation pipe is a circular pipe having an outer diameter of 10 mm or less. The ventilation pipe is built in a baseboard arranged in contact with the wall,
The said base board has a blower outlet which blows off the air blown off from the said ventilation pipe, The dew condensation prevention apparatus as described in any one of Claims 1-3 characterized by the above-mentioned.   The pressure in the pressure vessel is detected, the compressor is stopped when the pressure in the pressure vessel exceeds the first pressure, and the pressure in the pressure vessel is a second pressure smaller than the first pressure. The dew condensation prevention device according to any one of claims 1 to 4, further comprising a control device that causes the compressor to operate when the pressure is lower than.

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