JP4166145B2 - Bakeout method - Google Patents

Description

  The present invention relates to a bakeout method, and more particularly to a bakeout method that does not affect other building materials while efficiently applying to the building materials.

  From the viewpoint of energy saving, etc., measures have been taken to improve the airtightness of residences, offices, etc., resulting in high airtightness in homes and offices. Sick house syndrome caused by indoor air pollutants such as volatile organic compounds typified by formaldehyde contained in agents, paints, etc. is a problem.

  The adoption of building materials that do not contain volatile organic compounds is virtually impossible due to cost and other problems, so removal of indoor air pollutants after construction has been studied. The out method is known. In this construction method, as shown in FIG. 4, the room temperature is raised to around 40 ° C. with a heater 11 or the like and kept for a certain period of time while the partitioned room 10 is once closed for a building such as a house or building. Thus, the indoor air pollutants 13 such as the volatile organic compounds such as the floor 12 are urged to diffuse, and then the indoor air pollutants are forcibly exhausted and ventilated by the blower 15 etc. while opening the window 14. 13 is removed to the outside 16.

  However, in the above-described baking-out method, since the partitioned room 10 is heated while being closed once, the indoor pressure becomes high, and indoor air pollutants such as volatile organic compounds diffused during the heating are generated. In addition to being easily re-adsorbed 18 on the building material 17 and the interior material, there is a problem that in the closed state, the concentration of contamination increases quickly and reaches a saturated state, so that the amount of diffusion does not increase and cannot be removed efficiently.

Therefore, in order to suppress the re-adsorption of the volatile organic compounds diffused during heating to the building materials and to remove the volatile organic compounds from the building materials, the blower is operated, the ventilation fan is operated, or the windows are opened. The building material which constitutes the room by heating the room while placing the indoor air pollutant removal material in the room and adsorbing the volatile organic compounds, etc. released during the heating to the room removal material Proposals have also been made to remove indoor air pollutants. (For example, see Patent Document 1)
However, in the above proposal, in order to remove indoor air pollutants, the indoor air is replaced with fresh air by operating the blower, operating the ventilation fan, or opening the window. The room temperature will also drop to near the outside temperature.

  There is a correlation between the room temperature during baking out, the surface temperature of the target building material, and the amount of volatile organic matter generated, and the amount of volatile organic matter generated increases rapidly as the surface temperature increases. When the temperature rises by 3 to 5 ° C, the amount of volatile organic substances generated is approximately doubled, but conversely, even if the room temperature during baking is 50 ° C, if the room temperature decreases to near the outside temperature due to ventilation, baking will occur. It is known that the effect drops rapidly. In addition, since the heated air during the bakeout rises, the temperature in the lower part of the room is difficult to rise, and the generation of volatile organic substances from the floor cannot be expected to have a removal effect compared to other building materials such as walls and ceilings. It was.

In addition, there has been proposed a method for removing volatile organic substances in a closed room using a catalyst without performing ventilation. In this proposal, in order to remove volatile organic substances generated by baking out, a catalyst for removing volatile organic substances is used, and this catalyst is heated with a heat source for baking out. Using a catalyst or the like supported on aluminum oxide, the volatile organic matter is oxidized and removed to carbon dioxide and water while the chamber to be removed is kept in a sealed state, and promotes a decrease in the temperature of the object to be baked out. It is supposed to be possible to remove without ventilation. (For example, see Patent Document 2)
In any case, there are a wide range of objects to be baked out in living rooms, guests, kitchens, entrance lobbies, toilets, corridors, etc. in offices and various office rooms and corridors in office buildings. Various opening portions such as doors and bags are provided, and their temperature states are also individually different. In addition, the baking-out heating is to prevent the generation efficiency of the volatile organic compound from rapidly decreasing due to the decrease in temperature, thereby preventing the removal efficiency from being lowered, and preventing the interior material from being damaged by the thermal stimulus. Furthermore, while adjusting the room temperature during baking to be 30 to 50 ° C., it is hard to maintain the environment.

  In addition, in order to solve the problem that the temperature control of heating is relatively difficult, for the purpose of facilitating temperature control, it was also considered to set a high set temperature in anticipation of a temperature drop. The construction material such as wood that constitutes may cause problems such as distortion and deformation due to non-uniform dry operation, and therefore, its implementation is difficult.

  The resulting bakeout efficacy can be seen in the change in volatile organic compound concentration shown in FIG. 5, and the concentration of volatile organic compound after baking out depends on whether the window 14 is closed or opened, and the window 14 is closed or baked. The amount of concentration reduction has not reached a complete removal level in spite of the long time required to open and close the window 14 after the concentration increases due to the execution of out.

As described above, the conventional bakeout method is positioned as a countermeasure method for sick house syndrome in buildings, but specific implementation problems include living room, guest room, kitchen, entrance lobby, toilet, corridor, etc. It is difficult to create and maintain an environment centered on temperature management in a large space with various openings such as windows, doors, fences, etc. in houses or office buildings composed of various office rooms and corridors. In addition, it has been posed as an unsolved problem that pollutants such as volatile organic compounds that have been diffused are re-adsorbed on the surface of building materials other than the diffused surface.
JP-A-10-296033 (paragraph numbers “0006” to “0010”, “0018” to “0019”, FIG. 1) JP 11-76759 A (paragraph numbers “0008” to “0014”)

  The present invention is proposed in order to solve the problem in view of the above situation, and facilitates temperature management in the bake-out method, and the pollutants in the diffused indoor air are the surfaces of the building materials other than the diffusion surface. The purpose of this method is to provide a bakeout method that can prevent re-adsorption on the surface and improve the overall bakeout efficiency.

Bakeout method is an invention of claim 1, in bakeout method for the surface of the building material to be treated and sealed by the closure member, treating pollutants contained in the building material so dissipated in the surface temperature rise, Outdoor A first step of measuring the concentration of pollutants in the room by closing the opening adjacent to the second step, a second step of opening the opening, and an open pipe for introducing the pollutants provided in the closing material to the outdoors a third step of Ru was opened, and a fourth step of discharging to bake out contaminants diffused from building materials outdoors with warm air generator, a fifth step of stopping the hot air generator, close the opening And a sixth process for measuring the concentration of pollutants in the room, and the second to sixth processes are repeated until the measured concentration of the pollutants is equal to or lower than a predetermined value. Blocks the surface of the building locally, building materials It is to actively discharged outdoors through the open tube provided with al dissipation contaminants in closeout, because it is locally blocked by the small space, and coordinate in the space to the optimum temperature bakeout Maintaining temperature control, such as maintaining it, dissipates pollutants in a short time, and pollutants are actively discharged to the outside through an open pipe provided in the closure material, so the contamination concentration in a locally sealed space The amount of radiation from the surface of the building material to be treated is increased so as not to reach saturation, and the pollutants that have diffused to the surface of the building material other than within the radiation surface and locally sealed space are re-adsorbed. I prevent it from doing as much as possible.

The bakeout method according to claim 2 is the same as the bakeout method according to claim 1, wherein the surface of the building material to be treated is continuously sealed with a closing material, and the open pipe provided on the closing material is shared. In addition to the above functions, the living room, the guest room, the kitchen, the entrance lobby, the toilet, and the hallway can be baked out completely and efficiently.

The bakeout method according to claim 3 is the bakeout method according to claim 1 or 2, wherein the closing material is provided with a contaminant adsorbing layer on the surface side of the building material, and the adsorbing layer is baked. In addition to the above functions, the disposal of contaminants in the bakeout is processed in a locally sealed space, and the room is taken from the open pipe provided in the closing material. In addition, the diffusion of contaminants to the outdoors can be suppressed as much as possible, and the adsorbed layer is only discarded after the bakeout treatment, facilitating the treatment of the contaminants.

The bakeout method according to claim 4 is characterized in that, in the bakeout method according to any one of claims 1 to 3, the outdoor discharge of the pollutant diffused from the building material is accelerated by a flow feeding device. In addition to the above functions, the emission of contaminants from the surface of the building material to be treated is increased by forcibly releasing pollutants outdoors and actively destroying the gas-liquid equilibrium in the locally sealed space. Thus, the treatment speed of contaminants in the bakeout target space is improved.

The bake-out method according to claim 1 is a bake-out method in which the surface of a building material to be treated is sealed with a closing material, and contaminants contained in the building material are dissipated due to an increase in surface temperature. A first step of measuring the concentration of pollutants in the room by closing the adjacent openings, a second step of opening the openings, and an open pipe for introducing the pollutants provided in the closing material to the outdoors a third step of Ru is, a fourth step of discharging the contaminants dissipated from bake out and building materials in the hot air generator to the outdoor, and a fifth step of stopping the hot air generator, the indoor close the opening And the sixth step of measuring the concentration of the pollutant is repeated, and the second to sixth steps are repeated until the measured concentration of the pollutant falls below a predetermined value, so that the surface of the building material to be treated is locally Blocking contaminants released from building materials It is to actively discharged outdoors through the open tube provided in, to facilitate temperature control, together with dissipate contaminants in a short period of time, exert an effect of preventing the re-adsorbed on the building material surface a non-dissipating surface ing. Furthermore, the construction cost can be reduced without using a contaminant adsorbing / removing material or a removing catalyst by making it unnecessary to close the opening during baking. Since there is no need to close the doors, windows, air supply / exhaust openings, etc. at the time of baking out, there is no possibility of adsorbing diffused pollutants on the building material surface other than the target site without stagnation in the room.

The bake-out method according to claim 2 is the bake-out method according to claim 1, wherein the surface of the building material to be treated is continuously sealed with a closing material, and the open pipe provided in the closing material is made common. In addition to the effects described above, the present invention demonstrates the effect of baking out the living room, guest room, kitchen, entrance lobby, toilet, corridor, etc. completely and efficiently.

The bakeout method according to claim 3 is the bakeout method according to claim 1 or 2, wherein the closing material is provided with an adsorbing layer of contaminants on the surface side of the building material, and the adsorbing layer is treated as a bakeout. Since it is characterized by being disposed of later, in addition to the above effects, it is possible to easily treat the pollutants in the bakeout and to suppress the diffusion of the pollutants to the indoor side as much as possible.

The bakeout method according to claim 4 is characterized in that, in the bakeout method according to any one of claims 1 to 3, the outdoor discharge of the pollutant diffused from the building material is accelerated by a flow sending device. In addition to the above effects, the pollutant is forced to be discharged outdoors , and the effect of improving the treatment speed of the pollutant in the bakeout target space is exhibited.

First bake-out method according to the present invention, since the surface of the building material to be treated and sealed by the closure member, treating pollutants contained in the building material so dissipated in the surface temperature rise, opening adjacent to the outdoors a first step of measuring the concentration of contaminants in the room to be closed, the second step and the third which Ru an open pipe is opened to the outside for guiding the contaminants provided on closeout outdoors to open the opening A process, a fourth process for discharging the pollutants baked out from the building material by the hot air generator to the outdoors, a fifth process for stopping the hot air generator, and a process for closing pollutants in the room by closing the opening. A sixth step for measuring the concentration, and the second step to the sixth step are repeated until the measured concentration of the contaminant becomes a predetermined value or less, and the surface of the building material to be treated is locally Sealed and installed in the closure material pollutants released from building materials Are actively is discharged to the outside through the open tube was.

  In the following, an embodiment of the first bakeout method according to the present invention will be described in detail with reference to the drawings. However, in order to facilitate understanding, the same parts as those in the prior art are represented by the same reference numerals.

  FIG. 1 is a partial perspective view showing an embodiment relating to the bakeout method of the present invention. In this embodiment, the floor is an object to be baked out.

The bake-out method of the present invention shown in the first embodiment is carried out by the following steps. As a first treatment , all the openings 14 such as windows, doors, and air supply / exhaust ports adjacent to the outdoor 16 are covered. It is closed (see FIG. 3), the concentration of the pollutant in the room 10 is measured, and then all the openings 14 such as windows, doors, and air supply / exhaust ports adjacent to the outdoor 16 are opened.

  The source of the pollutant that is the target of local baking out in the present embodiment is the floor 12, and the surface thereof is covered with the sheet-like closing material 1 as the next step. Since the closing material 1 is provided with the open pipe 2, the pollutant 13 diffused through the open pipe 2 has moved to the outdoors 16.

  In addition, when the concentration of the pollutant diffused is remarkably high, the adsorbent 3 is attached to the back surface of the closing material 1 so that it does not adhere to other building materials 17 such as peripheral walls and interior materials. It is also possible to take measures to capture

A hot air generator 11 is installed on the floor 12 covered with the closing material 1 over its entire surface. In the next step, the air is baked by blowing warm air between the floor 12 and the closing material 1. Is out. As a result, the pollutant 13 contained in the floor 12 is diffused from the surface of the floor 12 and gradually diffused to the outdoor 16 through the open pipe 2 , and other building materials 17 and interior materials It is discharged to the outdoors 16 without being re-adsorbed 18.

  For this bakeout, it is also appropriate to operate a ventilation fan or a 24-hour ventilation facility in the room, and if the concentration of pollutants is extremely high, A blower or the like may be installed in a range covered with the open pipe 2 or the closing material 1 to forcibly release the polluted substances to the outdoors.

  By the above steps, the baking of the floor is completed. After the work is completed, the hot air generator 11 is stopped, the opening 14 adjacent to the outdoor 16 is closed, and the concentration in the room is measured by measuring the indoor concentration. If the concentration of the pollutant in the room does not reach the predetermined value or less, the above steps are repeated.

Second bakeout method according to the invention, in order to the surface of the building material to be treated and sealed by the closure member, treating pollutants contained in the building material so dissipated in the surface temperature rise, opening adjacent to the outdoors a first step of measuring the concentration of contaminants in the room to close, a second step of opening the opening, Ru an open tube for guiding contaminants provided in the closure member to the outside is opened to the outside in the common 3rd process, 4th process which discharges the pollutant baked out by the warm air generator and released from building materials to the outdoors, 5th process which stops the warm air generator, indoor pollution by closing the opening A sixth step of measuring the concentration of the substance, and the second step to the sixth step are repeated until the measured concentration of the pollutant becomes a predetermined value or less, and the surface of the building material to be treated is locally And continuously sealed and released from building materials Contaminants are aggressively is discharged to the outside through a common opening, living room, drawing room, kitchen, entrance lobby, toilet, are totally bake out the corridor and the like.

  Hereinafter, an embodiment of the second bakeout method according to the present invention will be described in detail with reference to the drawings. The same parts as those in the above embodiment are represented by the same reference numerals.

  FIG. 2 is a cross-sectional view showing an embodiment of the bakeout method according to the present invention. In this embodiment, the living room 4 with the window 14 is the target of full baking.

As shown in the figure, the living room 4 to be baked out is composed of a floor 12, a wall 5 and a ceiling 6, but in this embodiment, these are covered with a closure material 7 formed continuously. The pollutant 13 is released to the outdoors 16 through the common open pipe 8 by dissipating it by increasing the surface temperature.

  The closing material 7 is composed of closing materials 7-1, 7-2, 7-3 and 7-4 which locally close the floor 12, the wall 5 and the ceiling 6. The air holes 7-5 are connected to each other. At the time of baking, the pollutant 13 diffused from the surfaces of the floor 12, the wall 5 and the ceiling 6 is outdoors through the open pipe 8 common to the air holes 7-5. 16 is dissipated.

  The construction of baking out for the living room 4 is basically the same as the above embodiment, but it is necessary in consideration of the discharge balance when the pollutant 13 diffused through the common open pipe 8 is diffused to the outdoor 16. In such a case, as shown in the figure, the accelerating blower 9 is disposed in the open pipe 8 portion, and the bakeout of all the target portions is performed uniformly.

In the bakeout described in the above embodiment, since the environment is easily maintained at a bakeout temperature of 40 ° C. even when the opening is opened, and the release of the pollutant to the outside is natural, the generation amount of the pollutant is not reduced. It is easy to remove the interior material by preventing the deterioration due to the thermal stimulation, and as a result, the bakeout efficiency is greatly improved as shown in the concentration change of the pollutant in FIG.

As described above, since the bakeout method according to the present invention is configured as described in each embodiment, the portion to be baked out is blocked by sealing with a closing material with an open pipe that is opened outdoors. By narrowing the space to be applied locally, the following specific effects are exhibited.

  1) Since the temperature environment necessary for baking out can be realized at an early stage, pollutants contained in the building materials can be diffused in a short time, and the work can be made efficient.

  2) By eliminating the need to close the opening, the construction cost can be reduced without using a contaminant adsorbing / removing material or removal catalyst.

  3) The cost can be reduced by reducing the capacity of the hot air generator that blows warm air to the target surface.

  4) Since there is no need to close openings such as doors, windows, and air supply / exhaust ports, there is no risk of the diffused contaminants adsorbing to the building material surface other than the target site without stagnation in the room.

5) The adsorbent is attached to the inner surface of the closure member, by forcing outdoor discharging contaminants dissipated by installing such as a small exhaust fan to improve the treatment rate of the pollutants in the subject space of the bakeout, Bakeout can be speeded up.

  As mentioned above, although the present invention has been described in detail based on each embodiment, the bake-out method according to the present invention is not limited to the above-described embodiment at all, and does not depart from the above gist of the present invention. Of course, various changes can be made.

  The present invention can solve the problem of sick house syndrome due to indoor air pollutants such as volatile organic compounds in a residence, office, etc., and can improve the airtightness for energy saving and reduce the cost of the building.

1 is a perspective view showing a first bakeout method according to the present invention. Embodiment showing the second bakeout method according to the present invention in a sectional view Contaminant concentration change chart when applying the bakeout method according to the present invention Conventional bakeout diagram Contaminant concentration change in conventional bakeout

Explanation of symbols

1 Closing material, 2 Open pipe, 3 Adsorbent, 4 Living room, 5 Wall, 6 Ceiling,
7 Closure material, 7-1, 7-2, 7-3, 7-4 Closure material, 7-5 Vent,
8 open pipes, 9 blowers, 10 indoors, 11 heaters, 12 floors,
13 pollutants, 14 windows, 15 blowers, 16 outdoors , 17 building materials,
18 re-adsorption,

Claims (4)

The surface of the building material to be treated and sealed by the closure member, a bake-out method of treating dissipate contaminants contained in the building material in the surface temperature rise,
A first step of closing the opening adjacent to the outdoors and measuring the concentration of pollutants in the room;
A second step of opening the opening;
A third step of Ru opens the open tube for guiding contaminants provided in the closure member to the outdoor outdoors,
A fourth step of discharging the pollutants baked out by the hot air generator and released from the building materials to the outdoors;
A fifth step of stopping the hot air generator;
A sixth step of closing the opening and measuring the concentration of pollutants in the room,
A baking out method characterized by repeating the second step to the sixth step until the measured concentration of the contaminant becomes a predetermined value or less . The bakeout method according to claim 1, wherein the closing material is a common open pipe provided on the closing material by continuously sealing the surface of the building material to be treated. The baked-out method according to claim 1 or 2 , wherein the closing material comprises an adsorption layer of a contaminant on the surface side of the building material, and the adsorption layer is disposed of after the treatment. The bakeout method according to any one of claims 1 to 3 , wherein the outdoor discharge of the pollutant diffused from the building material is accelerated by a flow sending device.

Images