JPS62291375A - Ventilation system in building also used as eaves snow removing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Object of the Invention) This invention relates to a ventilation system within a building in a snowy area, and in particular to a system that can intensively extinguish snow that accumulates at the eaves. The purpose of this project is to provide a ventilation system with a new configuration that serves both of the following functions.

(Prior technology) Buildings located in snowy regions such as the Tohoku and Hokuriku regions face a wide variety of negative effects caused by snow, such as damage to eaves, damage to buildings, and damage to property due to lightning strikes. A great deal of hardship is being forced upon them.

Recently, various proposals have been made from various fields to solve these problems.

For example, as devised by Utility Model Publication No. 58-38095, a snow drain is placed in the valley of a V-shaped roof that slopes downward toward the center, and the snow is melted while remaining on the roof. There are so-called ``snow-free buildings'' where water is drained through vertical drain pipes, and stoves as seen in Utility Model Publication No. 56-38090 and Utility Model Publication No. 58-27304. Types of equipment that are expected to have a lightning extinguishing effect over the entire roof surface of a building, such as those that guide warm air from indoor heating equipment to the roof surface covered with snow, and use that heat to forcibly enhance the lightning extinguishing effect. Something is there.

However, with these conventional methods, the structure itself has to be large-scale, which inevitably increases the construction cost, and although it is suitable for new construction, it is not suitable for renovation, and there are many restrictions on the design. In addition, in the case of indoor heating equipment as a heat source, it is expected that lightning will be extinguished from the entire roof surface. Because it also has the problem of lacking sex, the reality seems to be that it has not become as widespread as expected to date.

Therefore, for example, Utility Model No. 57-41298 and Utility Model Number 57-41298,
7-41299, which consists of a configuration that attempts to extinguish lightning at the eaves in a somewhat sloppy manner, but this actually requires the entire attic to be extinguished. In the end, we adopted a configuration in which warm air flows through the eaves, which has the disadvantage that it is not possible to supply enough heat to melt the snow that accumulates on the eaves, and in the end, only a halfway effect can be achieved. This method has a major drawback in that it causes dew condensation within the space, which can adversely affect the building itself.

This invention has been developed and researched for many years to find out how to eliminate the disadvantages of each of the conventional methods, and as a result, we have finally completed an extremely practical ventilation system as detailed below. This is what we have come to.

(Structure of the Invention) As can be clearly understood from the first drawing shown as a typical embodiment of the present invention, a heat insulating material 11 on the outside,
A wall 1 having a ventilation space 12 on the inside and a floor structure 2 having a ventilation space 22 on the upper layer and a heat insulating material 21 on the lower layer communicate with each other through the ventilation spaces 12 and 22, and the wall The upper end of the ventilation space 12 in 1 is communicated with the eave ceiling space 3 for snow removal at the eaves, while the eave ceiling space 3 is provided with a condensation water guide plate 3.
2 and a condensed water discharge hole 33 are formed in the building 4.
The basic structure is an in-building ventilation system that also serves as an eaves snow removal system, in which hot air from a hot air boiler 5 placed outside is forcibly guided to a ventilation space 22 opened in the floor structure 2. be.

As shown in the figure, the eave ceiling space 3 is configured to be securely isolated from other attic spaces via a heat insulating material 31, and the space 3 has a structure in which ventilation ducts and other components are arranged. In the case of objects, insulating materials should be placed around their outer peripheries as much as possible, and the best arrangement should be made to prevent the warm air guided into the same space 3 from propagating to other locations.

The condensation water guide plate 32 is realized by diagonally installing a plate made of, for example, a stainless steel plate, a plastic plate, a water-resistant plywood plate, etc., at an appropriate position below a location where condensation is likely to occur.

In addition, a required number of condensation water discharge holes 33 are bored and formed in the eave ceiling 34 which is the lower surface of the eave ceiling space 3 to concentrate the condensation water guided to the lower end of the condensation water guide plate 32. It must be formed so that it can be excluded.

The hot air from the hot air boiler 5 is preferably guided as shown in the figure by providing a dedicated perforated pipe 51 in the ventilation space 22 so as to be guided over the entire surface of the floor structure 3 without creating a vortex layer. is desirable.

The in-building ventilation system of the present invention, which has the above-mentioned basic structure and is also used as an eaves snow removal system, can be further improved in practicality by realizing the structure shown in FIGS. 2 and 3. Can be lengthened with some ventilation system.

That is, the wall 1 has a heat insulating material 11 on the outside and a ventilation space 12 on the inside, and a floor structure 2 has a ventilation space 22 on the upper layer and a heat insulating material 21 on the lower layer. space 1
2.22, and a temperature-sensing shutter or a smoke-sensing shutter 7 that closes the ventilation space at a predetermined temperature is attached to the ventilation space 12.22 at a proper location, and the upper end of the ventilation space 12 in the wall body 1. is connected to the eave ceiling space 3 for snow removal at the eaves, while a condensation water guide plate 32 and a condensation water discharge hole 33 are formed in the eave ceiling space 3, and there is no connection to the outside of the building 4. This is an in-building ventilation system which also serves as an eaves snow removal system, by forcibly guiding warm air from a hot air boiler 5 placed into a ventilation space 22 in a floor structure 2.

The temperature sensing shutter or smoke sensing shutter 7 is
They are activated in the event of a fire outbreak, abnormal temperature rise, or abnormal smoke generation, and prevent flames and smoke from spreading throughout the building 4 by using each ventilation space 12° 22 as a chimney. It has the function of blocking the ventilation space 12.22 at important points, and is shown as a typical example in the enlarged sectional view of the second fixed part and the partially omitted perspective view of FIG. As shown in FIG.
It is attached to the appropriate place of 6.

And, as the shutter 7, we have already developed,
For example, in addition to known shutters that can be automatically opened and closed using bimetal, electrical sensors, optical sensors, etc., the shutters can be operated directly or indirectly using the attributes of new materials that will be developed in the future. It goes without saying that shutters that employ, for example, shape memory alloys, smoke sensing materials, etc., can also be used as the shutter of the present invention.

In addition, in the figure,] 3 is an exterior board, 14 is an interior board, 23 is a floor board, 24 is a floor base, 25 is a joist, 26 is a ceiling board, 27 is a roof edge, 41 is a snow stopper, 6 is a building 40 The foundation and 8 show the snow that has accumulated on the roof surface.

(Function) In the in-building ventilation system which also serves as an eaves snow removal system of the present invention and is configured as described above, warm air supplied by the hot air boiler 5 is transferred to the floor 2 which is insulated from the foundation 6 by the heat insulating material 21. While exerting the floor heating effect throughout the ventilation space 22 of
The purpose is to realize a ventilation system in which a wall heating effect is exhibited in the process of naturally rising inside the space 2, and finally all the warm air is concentrated only in the eaves space 3.

On the other hand, in the case of a ventilation system in which temperature sensing shutters or smoke sensing shutters 7 are attached at appropriate places in the ventilation space 22.12, which realizes a structure in which the floor 2, wall 1, and eaves space 3 are connected, In addition to the above-mentioned effects, when the temperature in the ventilation space 12.22 suddenly rises due to abnormal heat generation in the hot air boiler 5, heating ignition of indoor heating equipment, etc., or smoke is emitted, the temperature sensing shutter or smoke detection This realizes a ventilation system in which the shutter 7 operates to block key points in the ventilation space 12.22.

(Effects) As described above, the in-building ventilation system of the present invention that also serves as the eaves snow removal system can utilize surplus warm air that could not be used for heating each room in the building 4, as in the case of conventional systems. Rather than spreading to the entire attic, it is concentrated in the eaves space 3, and the eaves (especially the back side of the roof board 42 at the eaves)
It is necessary to make it possible to keep warm only in a specialized manner.

Therefore, the ventilation space 22.12 of the sheet metal, floor 2 and wall 1
Even though the warm air loses a considerable amount of heat in the process of passing through and rising, it is concentrated only in the eaves space 3, which is extremely small compared to the entire attic, and the warm air gradually cools down. A system in which the excess warm air that is naturally released to the outside through the snow melting water discharge hole and through hole 33 and that rises one after another is always concentrated in a cyclical manner around the upper part of the eave roof space 3 (the back side of the roof board 42). This means that only the eaves can be kept warm more effectively than ever before.

This means that until now, the eaves area, that is, the part of the roof that is outside of the area surrounded by the eaves, girder J3, and girders of Building 4, has been constantly exposed to cold air, which naturally escapes from the palace grounds. This is because areas that are completely unable to receive even the surplus heating heat are always subject to the effects of cold and warm temperatures from the outside world.
After a snowfall, when warm days continue, the snow melts and causes lightning strikes, and when cold temperatures repeat many times a day, it melts a little and then freezes, creating icicles on the eaves. , an ice embankment forms on the roof surface of the eaves,
The snow that accumulates on the roof above the eaves melts and blocks the flowing water, causing so-called "sugamore". Considering that it is seen as the culprit for various types of damage, it can be considered an extremely outstanding feature.

Furthermore, in order to prevent dew condensation in the eave ceiling space 3, which may cause a practical problem depending on the case, with this ventilation system, the condensation water guide plate 32 and the condensation water discharge hole 33 are provided in advance in the eave ceiling space 3. Since we have adopted a structure in which it is placed in the appropriate place within the interior, we have ensured that it is completely safe, so it can be fully counterbalanced.

Furthermore, as this ventilation system, the ventilation space 12.2
2. If a structure with temperature sensing shutters or smoke sensing shutters 7 installed in appropriate locations is adopted, in the event that an abnormal situation that could lead to a fire is likely to occur, or as a result, a fire will occur. It is possible to realize a system that is designed to prevent disadvantageous situations caused by the ventilation space 12.22 even when the ventilation space 12.22 is damaged, so its practical value is extremely high.

As mentioned above, the in-building ventilation system that also serves as an eaves snow removal system of the present invention can extremely effectively and reliably solve the problem of snow removal on roofs, which is a major social problem in buildings in snowy areas. Unlike previous methods, there is no need to prepare for a large amount of expense and effort, and from the standpoint of fire safety, it can be adopted with peace of mind. Unlike any of the various types that have been proposed, it has high expectations for widespread use and adoption.

The in-building ventilation system that also serves as the eaves snow removal system of the present invention, which makes it possible to intensively extinguish lightning from the eaves area, has, for example, been developed by the applicant of the present application, and has already been put into practical use. When adopted for buildings consisting of a wooden frame structure that adopts large cross-section columns (210 x 210 m), as seen in the invention of Application No. 58-126558, these buildings have a structure that covers the entire roof surface except for the eaves. It has a structure that is strong enough to withstand even if it is left covered with snow, making it extremely effective and even more effective.

[Brief explanation of the drawing]

The drawings are of a typical building realized by adopting the system of the present invention; Fig. 1 is a vertical sectional view showing the main cross section thereof, and Fig. 2 is a diagram of another example. FIG. 3, which is an enlarged sectional view of the main part, is a perspective view of the same part with the shrine omitted. 1...Wall body, 11...The same insulation material, 12...The same ventilation space, 2...The floor, 21...The same insulation material, 22...The same ventilation space, 3...The eaves Sky space, 31...same insulation material, 3
2... Condensation water guide plate, 33... Condensation water discharge hole/hole, 34... Same eaves, 4... Building, 41...
Snow stopper fitting, 42... Same ground board, 5... Warm air boiler, 51... Same open hole pipe, 6... Foundation, 7...
Temperature sensing shutter or smoke sensing shutter, 8...
·snow.

Claims (1)

[Scope of Claims] 1. A wall body formed with a heat insulating material on the outside and a ventilation space on the inside, and a floor structure formed with a ventilation space on the upper layer and a heat insulating material on the lower layer are communicated through each ventilation space. At the same time, the upper end of the ventilation space in the wall is connected to the eave ceiling space for snow removal at the eaves, while the condensation water guide plate and the condensation water discharge hole are formed in the eave ceiling space. This is an in-building ventilation system that also serves as an eaves snow removal system, which forcibly guides hot air from a hot air boiler placed outside the building into the ventilation space in the floor structure. 2. A wall body formed with a heat insulating material on the outside and a ventilation space on the inside, and a floor structure formed with a ventilation space on the upper layer and a heat insulation material on the lower layer are communicated with each other through each ventilation space, and the ventilation space is located at the appropriate location. A temperature-sensing shutter or a smoke-sensing shutter is attached to the wall to close the ventilation space at a predetermined temperature. A condensation water guide board and a condensation water discharge hole are formed in the eaves, where warm air from a hot air boiler placed outside the building is forcibly guided into the ventilation space in the floor structure. An in-building ventilation system that doubles as a snow removal system.