JPH0237241A - Smoke sensor ventilating cooling heating equipment - Google Patents

Abstract

PURPOSE:To enable high-efficient ventilation according to the using situation of each room by a method wherein a smoke sensor to detect contamination of air is situated in a room, and dampers mounted in an exhaust duct are opened and closed by means of a detecting signal from the smoke sensor. CONSTITUTION:An exhaust duct 1 connected to not only a room A, e.g. a toilet, where contamination of air is normally eminent, but also a living room and a reception room B, where a using frequency is low, is properly installed. By means of a signal from a smoke sensor 4 situated in the room, opening and closing of dampers 2 and 3 mounted in the exhaust duct 1 are controlled by a controller 5. Regarding the room A where air is normally contaminated, the damper 2 is opened and the damper 3 is closed to perform normal or frequent exhaust, and regarding the room B, e.g. a living room, a reception room, where a using frequency is low, by means of the smoke sensor 4, the damper 3 is opened for exhaust only when contamination of air is eminent.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) This invention relates to smoke sensor ventilation and heating equipment. More specifically, the present invention relates to ventilation/cooling/heating equipment using smoke sensors that can efficiently ventilate each room in a residential building depending on the usage status.

(Prior art) In recent years, satsushi structure, l! With the advancement of Ir thermal ring structures, the airtightness and insulation properties of ordinary residential buildings have significantly improved. Coupled with this trend, central air conditioning equipment, which centrally controls heating and cooling the entire interior of a building, is also running counter to this trend.

Furthermore, heat exchange ventilation/heating equipment has been developed that efficiently performs ventilation and heating/cooling inside a building by circulating air throughout the room.

For example, an example of such equipment is a heat exchange ventilation/heating equipment as shown in FIG. As shown in this example, in the case of conventional equipment, the blower duct (A) supplies cold and hot air to each floor of the building, each room, etc., while the exhaust air is used to constantly supply air to toilets, etc. It is common practice to exhaust only the air in a specific room that is extremely contaminated through an exhaust duct (a), and to exhaust the air in other rooms, such as a living room, through a hallway or staircase.

In addition, the air conditioning system (1) sends cold and hot air to the ventilation duct (A), and the air from the exhaust duct (A) is
The heat exchanger (E) exchanges heat with the air sucked in from outside, and then exhausts the air to the outside of the building.

Regarding these facilities, various studies are currently underway to improve the efficiency of air circulation and reduce construction costs.

(Problem to be Solved by the Invention) However, with regard to these heat exchange ventilation/heating equipment, the inlet of the exhaust duct for indoor ventilation is only installed in rooms where the air is constantly extremely contaminated, such as toilets. For example, when you smoke a cigarette, even in a living room that is rarely used, the indoor air gets dirty, and this dirt fills the room and circulates inside the building through hallways, etc., and this dirty air can be removed as needed. It is not possible to centrally exhaust the air at any time.

From both health and safety standpoints, it has been desired to create a facility for such centralized exhaust ventilation.

One possible solution to this problem is to provide exhaust ducts that communicate with all rooms in the building and intake ports for each school regulation. However, in this case, the air in the room, which is not used frequently, is constantly exhausted, so the air conditioning load for ventilation becomes large, which is disadvantageous in that it is not economical.

This invention was made in view of the above-mentioned circumstances, and it eliminates the drawbacks of conventional ventilation/heating equipment, and enables efficient ventilation according to the usage status of each room in a building. Moreover, the present invention provides an improved ventilation/cooling/heating facility with a small load for ventilation. The purpose is to

(Means for Solving the Problems) In order to solve the above problems, the present invention disposes a smoke sensor that detects air pollution indoors, and opens and closes a damper provided in an exhaust duct according to a detection signal from the smoke sensor. The present invention provides smoke sensor ventilation/heating equipment characterized by:

With this equipment, exhaust ducts are installed not only in rooms where the air is constantly conspicuous, such as toilets, but also in the living room, reception room, etc., which are in the order of use. The signal controls the opening and closing of the damper attached to the exhaust duct. For rooms where the air is constantly contaminated, open the damper or frequently exhaust the air, and for rooms that are infrequently used such as living rooms and reception rooms, smoke sensors detect only when the air is extremely contaminated. Open the damper to exhaust the air.

Although there are no particular restrictions on the type of smoke sensor used in such equipment, a semiconductor gas sensor reactive with a reducing gas such as CO1CO2, which effectively detects cigarette smoke, is preferably used. The smoke sensor is connected to a controller, and opens and closes the damper according to instructions from the controller.

(Function) The smoke sensor ventilation/heating equipment of the present invention opens and closes the damper of the exhaust duct based on the detection signal of the smoke sensor.
Depending on the usage status of each room, rooms whose air is constantly contaminated can be constantly or frequently evacuated, and rooms that are infrequently used can be evacuated centrally as needed.

For this reason, ventilation within the building can be efficiently performed over the entire area, and since there is no wasteful exhaust air, the ventilation load will not become excessive.

(Example) The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an example of the smoke sensor ventilation/heating system of the present invention. Shows part of the inside of the building. The rooms (A>CB) each indicate a room (A) where the air is constantly extremely contaminated, such as a toilet, and a room (B) that is rarely used, such as a reception room that is not usually used.

Exhaust ducts (1) are connected to these chambers (A) and (B), and dampers (2) <3> are installed at appropriate locations along the way.
has been established. The smoke sensor (4) is installed only in the room (B) that is used less frequently.

The smoke sensor (4) and the damper (2) <3> are connected to a controller (5), and the controller (5) and the damper (2>(3) The device instructs the user to open and close the door.

In such a configuration, a room (B
) is not in use, or if the air is not conspicuous even if it is in use, the smoke sensor will not detect dirt, so the damper (3) should be closed. The damper (2) is opened in the room (A), where there is a constant flow of air, so that the air is constantly exhausted.

When air pollution occurs in the room (B) due to cigarette smoke, etc., and the smoke sensor (4) detects this, the controller (5) opens the damper (3) based on this detection signal. Close and intensively exhaust the air in chamber CB). When the dirt has fallen below a certain level, the dampers (2) and (3) are switched open and closed to return to the normal state.

Table 1 below shows this kind of operation.

Table 1 Regarding the opening and closing of this damper (2) < 3), in addition to the above, damper (2) is always open, air from room (A) is always exhausted, and smoke sensor is set in room (B). - If (4) detects air pollution, the damper (3) is also opened, and with dampers (2) <3> open at the same time, the room (A) is
(B) may be exhausted at the same time.

FIG. 2 shows yet another example.

In this example, smoke sensors (4a) (4b) are installed in each of the above rooms (A) and (B), and temperature sensors (6a) and (6b) installed in the room are also used for the air supply system. The opening and closing of dampers (8) and (9) provided in the air supply duct (7) are controlled via a controller (10).

Both the exhaust duct system and the air supply duct system can be installed in spaces within the building, such as under the floor or in the ceiling.

In this configuration, the permissible air pollution level for rooms (A) and (B) is set in advance, and when this level is exceeded, the smoke sensors (4a) and (4b) independently send detection signals. The damper (2) is activated by the controller (5).
) The opening/closing of <3> is controlled in the same manner as in the above example.

In this case, even in the room (A) where the air is extremely contaminated, the damper (2) is opened by a detection signal from the smoke sensor (4a) when air contamination exceeding a certain permissible level is detected. By doing this, the load for ventilation is further reduced, and the room is ventilated more efficiently.

These exhaust operations become more effective when associated with the air supply system. By connecting the exhaust system controller (5) and the air supply system controller (10), when the smoke sensor (4a) (4b) detects dirt, the damper (8) (9) is activated by the controller (10). ) can be controlled to increase the air supply.

This air supply system also includes indoor temperature sensors (6a) (6b).
) controls the opening and closing states of the dampers (8) and (9). Therefore, the air supply condition of cold and hot air becomes preferable.

Although not shown, it goes without saying that the above-described example of the present invention can be combined into a system by combining with the heating and cooling apparatus shown in FIG. 3, such as a hot water coil unit or a heat exchanger.

(Effect of the invention) With this invention, the drawing room, living room, which is usually infrequently used,
Alternatively, the air in rooms such as a study can be centrally exhausted as needed, and even rooms with extremely polluted air can be constantly exhausted, making the living environment throughout the building comfortable and healthy. condition, and the air conditioning load for ventilation can be kept to a minimum.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of the first and second inventions. FIG. 2 is a sectional view of a main part showing another example. FIG. 3 is an overall sectional view of the interior of a building showing an example of a conventional heat exchange ventilation/cooling system. 1...Exhaust duct 2.3...Damper 4.4a, 4b...Smoke sensor 5...Controller 6a 7...Supply 8゜6b...Temperature sensor air duct... Damper 0...controller

Claims (1)

[Claims] (1) Smoke sensor ventilation/cooling/heating equipment, characterized in that a smoke sensor for detecting air pollution is placed indoors, and a damper provided in an exhaust duct is opened/closed in response to a detection signal from the smoke sensor.