JPH0525957A - Method of controlling blowoff of air for melting snow - Google Patents

Abstract

PURPOSE:To supply warm air to each part in an attic property and achieve energy saving excellently in utilization factor of heat energy. CONSTITUTION:A temperature sensor 3 is provided on the roof 11, and a duct 2 is provided at the rear. The blowoff port 20 of each duct 2 is equipped with a mobile looper 21, which changes the direction of blowoff, and a mobile damper 22, which changes the blowoff quantity. With the blowoff of the warm air for melting now, the snowfall condition is monitored by weather observation, and also the roof surface condition is monitored by each sensor 3, and based on those monitor data, the blowoff of the warm air H is distributed into each blowoff port 20, whereby the warm air distribution copes with the roof snow distribution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of melting snow on a roof by warming it with warm air supplied to the attic to allow it to slide down. The present invention relates to a blowing control method.

[0002]

2. Description of the Related Art As is well known, when removing snow from a roof of a building, the slope of the roof is increased and the snow on the roof is dropped by its own weight. In addition, recently, there are buildings such as membrane structures where the roof slope cannot be increased excessively due to restrictions in terms of structure and application.Therefore, warm air is forcibly sent to the attic to warm it and snow on the roof is covered. Is thought to melt.

[0003]

However, snowfall is a natural phenomenon, and when the snowfall occurs, the snowfall condition such as snow quality and snowfall amount is not constant. Therefore, regarding the supply of warm air to the attic in order to melt the snow on the roof, there is a large loss of thermal energy even if the attic is simply heated at all times, and the conclusion is that efficient supply of warm air for snow melting is necessary. Had the challenge of being difficult.

The present invention has been made in view of the above circumstances, and an object thereof is to appropriately supply warm air to each part of the attic, thereby achieving efficient use of heat energy and energy saving. It is an object of the present invention to provide a method for controlling the blowing of warm air for snow melting.

[0005]

In order to achieve the above object, the present invention monitors a snowfall state in a method for controlling the blowing of warm air for snow melting, in which warm air is blown into the attic and the snow on the roof is melted and slid down. In addition, the roof surface condition such as the temperature of the roof surface is monitored, and the blowing of warm air is distributed to each part of the attic based on the monitor data, and the warm air distribution of this attic corresponds to the snow distribution of the roof. ..

[0006]

The operation of the present invention will be described. In addition to monitoring the snowfall condition, the roof surface condition such as the roof surface temperature is monitored. Then, the warm air is distributed to each part of the attic based on the monitor data, and the warm air distribution is made to correspond to the snow distribution on the attic. This means that warm air is supplied to each part of the attic in accordance with the distribution of snow on the roof, and the necessary amount of heat is appropriately distributed to each part of the attic, so the supply of warm air is effective. It can be carried out.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an elevation view of a membrane structure dome showing a preferred embodiment of the present invention, and FIG. 2 is a plan view thereof. Figure 1
2 and 2 both show the internal structure by fracture.

In the membrane structure dome 1, the wall portion 10 has a substantially cylindrical shape and the roof 11 has a substantially spherical shape.
The roof 11 has a low slope and is set gently.

Inside the membrane structure dome 1, a plurality of ducts 2 extending from an air conditioner (not shown) are appropriately arranged. These ducts 2 circulate inside the wall portion 10, and a plurality of ducts 2 are arranged along the back surface of the roof 11 in the dome 1.
A plurality of outlets 20 are intermittently formed on both sides of each duct 2 that is disposed so as to reach the top of the duct 2 and that extends radially from the top along the back surface of the roof 11. Each outlet 2
0 is provided with a movable louver 21 and a movable damper 22, and the warm air H blown from the movable louver 21 has a movable louver 21 in a blowing direction and a movable damper 2 in a blowing amount.
Each is adjusted by 2. Further, a plurality of temperature sensors 3 are arranged in a distributed manner on the surface of the roof 11, and the roof surface condition such as the temperature and temperature distribution on the surface of the roof 11 is monitored.

Now, FIG. 3 is a block diagram showing the operating mechanism of the control system according to the present invention. When blowing out the warm air H for snow melting that melts and slides the snow on the roof 11, first, the snowfall state is monitored, and the roof surface state such as the temperature and temperature distribution on the surface of the roof 11 is monitored. As a snowfall monitor, what is called weather observation is performed.
Using an observation device for observing the weather, the depth of snow accumulated (snow accumulation), the depth of snow accumulated within a predetermined time (snowfall), and humidity, which is an index of temperature and snow quality, are investigated. In addition, the roof surface state such as the temperature and temperature distribution on the surface of the roof 11 is obtained from the detection data of each temperature sensor 3 arranged in the relevant portion, and the roof 1 is calculated from those data.
1 The so-called roof surface condition such as the frozen condition of the surface will be determined.

Then, the blowing of warm air H is distributed to each part of the back of the roof 11 based on the monitor data, and the distribution of the warm air H with respect to the back surface of the roof 11 corresponds to the distribution of snow on the roof 11. .. This is done by so-called computer control. Regarding the blowing of the warm air H, the optimum value of the control for each outlet 20 is determined by using the monitor data of the snowfall state by the weather observation and the monitor data of the roof surface state of the surface of the roof 11 by each temperature sensor 3 as the judgment material. Movable louver 21 and movable damper 22 for the outlet 20
And the operation command such as a temperature command is issued to the air conditioner 4 to obtain the distribution of the warm air H corresponding to the snow accumulation state of each part on the roof 11.

In this way, the warm air distribution on the back surface of the roof 11 corresponds to the roof snow distribution by the distributive blowing of the warm air H, that is, the warm air H is supplied to each part on the back of the roof 11 according to the roof snow distribution. It means that the roof 11
The necessary amount of heat for causing snow melting will be appropriately distributed to each part of the back surface of the. Therefore, the supply of the warm air H can be efficiently achieved. Therefore, according to such blowout control, the warm air H can be appropriately supplied to each part of the back surface of the roof 11, the thermal energy can be effectively used, and the thermal efficiency is excellent, which is preferable for energy saving.

Further, since the warm air distribution can be efficiently created on the back surface of the roof 11 with a small amount of heat energy consumption, the heat energy can be supplied with high efficiency in order to prevent dew condensation on the roof 11. ..

[0014]

As described in detail above, according to the method for controlling the blowing of warm air for snow melting according to the present invention, the warm air distribution in the attic corresponds to the roof snow distribution by the distributed blowing of warm air. The required amount of heat to cause snow melting will be properly distributed to each part of the attic. Therefore, it is possible to supply warm air appropriately to each part of the attic without supplying the warm air, and it is possible to appropriately remove snow on the roof while efficiently utilizing heat energy.

[Brief description of drawings]

FIG. 1 is an elevational view of a membrane structure dome showing an embodiment of the present invention.

2 is a plan view of the membrane structure dome of FIG. 1. FIG.

FIG. 3 is a block diagram showing an operating mechanism of a control system according to the present invention.

[Explanation of symbols]

 11 roof H warm air

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyotoshi Otsuka 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Corporation Technical Research Institute

Claims (1)

Claim: What is claimed is: 1. A method for controlling the blowing of warm air for snow melting, in which warm air is blown to the attic and snow on the roof is melted to slide off. A method for controlling the blowing of warm air for snow melting, characterized in that the surface state is monitored, and the blowing of warm air is distributed to each part of the attic based on the monitor data so that the warm air distribution for the attic corresponds to the snow distribution on the roof.