JPH0335963Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a heater equipped with a gas detector for detecting gas contained in indoor air.

[Conventional technology]

Conventionally, gas detectors using various gas detection elements, including semiconductor type and catalytic combustion type, have been used, and these gas detectors not only issue alarms, but also detect other equipment such as ventilation fans, heaters, and electricity. These devices are linked together by wiring and controlled by gas detectors.

Additionally, there are heaters that incorporate various gas detection elements to detect combustion gas leaking from the combustion section and notify of abnormalities in the device. (Jitsukai 54-119934
(Refer to issue No.) ``Problem that the invention aims to solve'' By the way, gas detection elements and control devices for operating these gas detection elements are quite expensive, so it is possible to control the gas detection element by attaching it to the optimal position inside the controlled equipment. Although it is known that it is desirable to
Selling products with a detection device and products without a detection device side by side posed problems in terms of both manufacturing and sales management.

For this reason, a configuration has been implemented in which a gas detector is attached to a heater and linked with electrical wiring only when there is a request for installation, and these devices are controlled by the gas detector. In order for the device to operate reliably, it is necessary for the gas detection element to constantly come into contact with fresh indoor air, and in the past most gas detectors relied on natural airflow by making large air holes in the frame. For example, when the indoor air condition is changing, such as when a heater is being used indoors, a delay in the detection signal is likely to occur.

[Means to solve problems]

In this idea, when a gas detector is attached to a heater, a function for attaching it to a part of the heater is added in advance, and the heater's convection fan works to prevent detection delays. It is.

That is, an indoor air flow path 3 is formed within the frame 2 of the heater, and a combustion chamber 12 connected to the burner 11 provided within the frame 2 is installed within the indoor air flow path 3. An indoor air convection fan 1 is provided on the inlet side of the indoor air flow path 3, and a hot air outlet 10 is provided on the front of the frame 2 on the outlet side of the indoor air flow path 3. In the heater, the heated air is exchanged with heat on the wall of the combustion chamber 12 and is blown out as warm air from the warm air outlet 10.
and a suction port 3a is formed in the wall of the indoor air flow path 3 on the lower surface side of the convection fan 1, and an air guide path 4 is provided to communicate the opening 5 and the suction port 3a, and when the convection fan 1 is operated, A detector frame 7 is provided which forms an air flow from the opening 5 toward the suction port 3a and which houses a detection element 6 for carbon monoxide and oxygen gas inside. , 9 are formed, one of the air inlets and outlets 8 and 9 is aligned with the opening 5, and the detector frame 7 is attached to the heater frame 2.

[Effect]

When the heater is used, the convection fan 1 continues to rotate in order to heat the indoor air and blow out warm air from the hot air outlet 10 in front of the frame 2.
There is always an air flow in the indoor air flow path 3 inside the room. A suction port 3a is formed in the indoor air flow path 3 on the downstream side of the convection fan 1, and communicates with an opening 5 formed on the surface of the frame 2 through an air guide path 4.

In the indoor air flow path 3, when the convection fan 1 rotates, a portion where the air flow is faster is formed on the discharge side than on the suction side, and a suction port 3a is formed on the wall of the indoor air flow path 3 where the air flow is faster.
When there is a suction port 3a, air is drawn in and sucked in. Therefore, when the heater is in use, an air flow is formed from the opening 5 through the air guide path 4 to the suction port 3a.

On the other hand, there is a detection element 6 for carbon monoxide and oxygen gas inside.
Air inlets 8 and 9 are formed in the detector frame 7 that houses the gas detector, and if one of the air inlets and outlets 8 and 9 of the gas detector to be installed from the outside is installed in line with the opening 5, it can be used indoors. Air enters the frame 7 of the gas detector,
The air passes around the gas detection element 6, passes through the opening 5, through the air guide path 4, and is sucked out into the indoor air flow path 3 through the suction port 3a. For this reason, an air current always exists around the gas detection element 6, making it possible to quickly detect air pollution or abnormalities.

〔Example〕

To explain this invention with reference to the embodiment shown in the figure, 2 is a frame of the heater, 3 is an indoor air flow path formed in the frame 2, and 1 is a convection fan attached to the inlet side of the indoor air flow path. , 10 is a hot air outlet formed in the front of the frame 2 of the heater. 11 is a burner attached to the frame 2, and 12 is a combustion chamber attached to the upper part of the burner 11, which is located in the indoor air passage 3, and exchanges heat with indoor air on the wall surface of the combustion chamber 12. The heater of the embodiment is an indoor exhaust type heater without an exhaust pipe, and the exhaust gas is mixed with indoor air in the indoor air flow path 3 and blown out from the hot air outlet 10 as hot air.

3a is a suction port formed in the wall of the indoor air flow path 3 on the downstream side of the convection fan 1, 5 is an opening provided on a suitable inconspicuous outer surface of the heater frame 2, and 4 is the connection between the opening 5 and the suction port 3a. When the convection fan 1 is operated, the air in the air guide path 4 is drawn into the indoor air flow path, forming an air flow from the opening 5 toward the suction port 3.

7 is a gas detector frame, 6 is a gas detection element provided in the detector frame 7, 8 and 9 are air inlets and outlets formed at appropriate positions in the detector frame 7, and 13 is a control board for the gas detector 7. The gas detector frame 7 operates independently as a gas detector.

When the gas detector is used by being attached to the heater frame 2, one of the air inlets and outlets 8 and 9 of the gas detector frame 7 is attached to match the opening 5, and when the heater is in use, the gas Air entering the detector frame 7 from one entrance/exit 9 of the detector frame 7 now flows into the indoor air flow path 3 through the air guide path 4.

〔effect〕

As described above, in this invention, by forming the air guide path 4 in the heater in advance, an air flow can be formed from the opening 5 toward the suction port 3a while the heater is in use.

Therefore, by installing the gas detector frame 7 so that one of the air inlets and outlets 8 and 9 for supplying air into the gas detector frame 7 coincides with the opening 5 of the heater, the heater can be operated. Inside, an air flow was always formed near the gas detection element 6, so that the gas detection element 6 was always exposed to fresh indoor air. Therefore, there is no longer any delay in the detection signal that occurs when a conventional gas detector is attached to a heater, and even when indoor air becomes contaminated rapidly, such as when using a heater in a closed room. It has become possible to generate abnormal signals extremely accurately.

[Brief explanation of the drawing]

The drawing is a cross-sectional view of this device. 1... Indoor air convection fan, 2... Heater frame, 3... Indoor air flow path, 3a... Suction port, 4...
...Air guide path, 5...Opening, 6...Gas detection element, 7
...Detector frame, 8, 9...Air inlet/outlet, 10...
...Hot air outlet, 11...Burner, 12...Combustion chamber.

Claims (1)

[Scope of utility model registration request] Forming an indoor air flow path 3 within the frame 2 of the heater,
A combustion chamber 1 connected to a burner 11 provided in a frame 2
2 is installed in the indoor air flow path 3, an indoor air convection fan 1 is provided on the inlet side of the indoor air flow path 3, and a warm air outlet 10 is provided in front of the frame 2 on the outlet side of the indoor air flow path 3. In the heater, the air sent to the indoor air flow path 3 by the convection fan 1 is heat-exchanged on the wall of the combustion chamber 12, and is blown out as warm air from the hot air outlet 10. 2, and an indoor air flow path 3 on the downstream side of the convection fan 1.
A suction port 3a is formed in the wall, and the opening 5 and the suction port 3a
An air guide path 4 is provided to communicate with the convection fan 1, and when the convection fan 1 is operated, an air flow is formed from the opening 5 toward the suction port 3a. A body 7 is provided, air inlets 8, 9 are formed in the detector frame 7, one of the air inlets 8, 9 is aligned with the opening 5, and the detector frame 7 is connected to the heater frame 2. A heater with a gas detector, characterized in that it is attached to a heater.