JPS5833498B2 - Kanenseigaskenchikino test how - Google Patents

Description

[Detailed Description of the Invention] The gas detection element of a combustible gas detector has a limited lifespan, so its performance deteriorates, and if you are not aware of this, it may not operate and generate an alarm even if a gas leak occurs. Because there is
Flammable gas detectors should be tested regularly.

In view of this point, the present invention connects in series the heating wire of a gas generator containing a wax that generates flammable gas by heating at a melting point of 45° C. or higher and a heating wire, a power supply, and a test switch in a container with one end open. By turning on the test switch, the heating wire generates heat, heats the wax, and generates flammable gas.
The flammable gas is brought into contact with the combustible gas detector to test the operation of the combustible gas detector, thereby making it possible to easily perform the test.

The present invention will be explained below based on the illustrated embodiments.

Fig. 1 shows an example of incorporating it into a combustible gas detector, in which an electric circuit block a such as an alarm and a combustible gas detection element are mounted on the bottom side 1 of a fixed body B, with an opening at the top. For example, a container 4 with a melting point of 4
Cetyl alcohol (CH3 (CH2)1
A gas generator F containing a wax W (50H) and a heat generating wire H with the heat generating wire buried in the wax is fixedly mounted with the opening 2 facing the combustible gas detection element. A combustible gas detector A with a test device is constructed by connecting a battery power source E and a test switch S in series between both ends, and the battery power source E and test switch S are fixed to a wall or a pillar. .

Normally, the test switch S is open, the wax W is solid, no gas is generated from the scum generator F, and the combustible gas detector maintains a warning state.When testing, turn on the test switch S and the battery power supply E is turned off. Current flows through the heating wire H, and the wax W is heated by the heat generated by the heating wire H and melts until it reaches its boiling point, generating flammable gas.The flammable gas rises from the opening 2 due to the intake air from the intake hole 3. and come into contact with the combustible gas detection element.

If the combustible gas detection element is normal, it is activated by the combustible gas from the gas generator F and activates an alarm (not shown).

If it has deteriorated, it will not operate even if it comes into contact with flammable gas from gas generator F, and the alarm will not operate, and the performance test of the flammable gas detection element can be confirmed by the operating state of the alarm. .

When the test switch S is opened, the heating wire H stops generating heat, the wax W solidifies as the temperature decreases, and gas generation automatically stops, and the wax W solidifies and is stored in the container 4 with the heating wire H buried therein. .

Fig. 2 shows a portable embodiment, in which a gas generator F is arranged and fixed at the upper end of a rod-shaped cylinder 5 with the opening 2 facing upward, and a battery power source E is housed inside the cylinder. A test switch S is arranged in the handshake part 6, and the heating wire H of the gas generator F, the battery power supply E, and the test switch S are connected in series, and a test rod T is installed.
Configure.

Bring this test rod to the bottom surface of the flammable gas detector, turn on the test switch S, and generate flammable gas from the gas generator F in the same way as in the embodiment shown in Fig. 1. A performance test is performed by bringing gas into contact with the combustible gas detection element of a combustible gas detector.

As described above, according to the present invention, solid wax is heated to generate flammable gas, and the generated gas is brought into contact with a combustible gas detection element to perform a performance test, so even an amateur can easily detect flammable gas. The performance of the element can be checked, improving the safety and reliability of the combustible gas detector, and the wax does not evaporate or leak when not in use, making it extremely stable and economical for repeated use. Has excellent effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the device installed in a combustible gas detector, and FIG. 2 is a sectional view of a portable type device. Explanation of symbols for main parts: A is combustible gas detector, b is combustible gas detection element, F is gas generator, 4 is container, W is wax, H is heating wire, E is battery power supply, S is test switch.

Claims (1)

[Claims] 1 Connect in series the heating wire of a gas generator containing a sock that generates flammable gas by heating at a melting point of 45°C or higher and a heating wire to a power supply and a test switch in a container with one end open;
The feature is that when the test switch is turned on, the exothermic wire generates heat to heat the wax and generate flammable gas, and the flammable gas is brought into contact with the flammable gas detector to test the operation of the flammable gas detector. Test method for combustible gas detectors.