JPS5926467Y2 - Smoke detector characteristics test equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a smoke detector characteristic testing device, and more specifically, it is a mist that makes a mist of solvents 3 such as various pure liquids with different refractive indexes or various dyes with different colors. A generator 2 , a temperature regulator 5 provided in the discharge section 14 of the mist generator 2 to control the mist particle diameter, and the mist generator 2
a test box 7 which is connected by piping to the test box 7 and which houses a smoke detector;
Smoke density meter 8 and particle size measuring device 1 installed in test box 7
This relates to a smoke detector characteristic testing device.

In the past, there was no simple device for evaluating smoke detectors.

Therefore, an object of the present invention is to provide a smoke detector characteristic testing device that can easily examine the effects of smoke color and refractive index on smoke detector output.

The present invention will be described in detail below according to illustrated embodiments.

In the figure, 1 is a mist generator, 2 is a mist generator, and 3 is a mist generator.
is a solvent, either a pure liquid or a variety of dyes with different colors.

4 is a mist inlet, and 5 is a temperature regulator, which are disposed at the discharge section 14 of the mist generator 2.

6 is a mixing air inlet, and 7 is a test box in which a smoke density meter 8, a smoke detector 9, a particle size measuring device 10, and a fan 19 are housed.

11 is a signal line for particle diameter control, and 12 is a signal line for smoke density control.

Then, a pure solvent 3 with a clear refractive index is put into the mist generating section 1, and the solvent is turned into a mist by a mist generator 2 (eg, an ultrasonic humidifier).

Alternatively, an organic aerosol dye is introduced from the mist inlet 4.

The mist thus generated is floating within the mist generating section 1.

Air is fed into this from the mixing air inlet 6 and the mist is transferred to the test box 7.

The mist introduced into the test box 7 is made into a uniform concentration by a fan 13. In this case, the particle size of the mist in the test box 7 is measured by a particle size measuring device 10, and the result is fed back to the temperature controller 5, and the particle size is The diameter may be controlled.

Further, the mist density may be controlled by feeding back the output of a standard smoke density meter 8 (for example, a dimming type) to the mist generator 2.

Next, the outputs of the smoke density meter 8 and smoke detector 9 in the test box 7 are measured.

Here, by changing the type of solvent 3 and the color of the dye used in the mist generating section 1, it is possible to study the influence of the color and refractive index of smoke on the output of the smoke detector 9.
This method has the advantage of being able to perform verification and improvement, thereby improving reliability.

[Brief explanation of the drawing]

The figure is a schematic configuration diagram of an embodiment of the present invention, in which 2 is a mist generator, 3 is a solvent, 5 is a temperature regulator, 7 is a test box, 8 is a smoke density meter, 10 is a particle size measuring device, and 14 is a It is at the discharge part.

Claims (1)

[Scope of utility model registration request] A mist generator that turns solvents such as various pure liquids with different refractive indexes or dyes with different colors into mist, a temperature regulator installed in the discharge part of the mist generator to control the mist particle size, and a mist generator. A test box that is connected to a smoke detector by piping and houses a smoke detector, and a smoke detector characteristics test device that includes a smoke density meter and a particle size measuring device installed in the test box.