JP3180206B2 - Method and apparatus for easily checking CO gas detection alarm - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to easily detect the concentration of CO gas generated in various combustion appliances mainly using household fuel gas, a reaction furnace in a chemical factory, and a smelting furnace in steel and steel mills. The present invention relates to a method and an apparatus for easily checking a CO gas detection alarm which issues an alarm when a concentration equal to or higher than a predetermined value is detected at an installation location.

[0002]

2. Description of the Related Art Conventionally, this type of CO gas detection / alarm differs depending on the CO gas detection system depending on the type of built-in gas sensor such as a constant potential electrolysis system, a semiconductor system, and a contact combustion system. There is. And, in order to prepare a test gas, small gas bags were dispensed from a CO gas cylinder and brought to the site for use. However, it was necessary to dilute each time it was used. However, it is inconvenient to carry and has low security.

As a CO gas generator, a carbon powder and a salt of barium sulfate are mixed and heated and thermally decomposed as disclosed in JP-B-61-24327.
There is a generator using a method of generating a gas or a method of obtaining a CO gas by thermally decomposing formic acid or oxalic acid.

[0004]

However, in order to generate CO gas by the CO gas generator as described above, the invention disclosed in Japanese Patent Publication No. 61-24327 requires 500
In order to perform thermal decomposition at a heating temperature of 600 ° C. or more, a heating power source (battery) is required, and there is inconvenience that a mixture of carbon powder and barium sulfate must always be filled. The latter method of thermally decomposing formic acid or oxalic acid,
Similar to the former, there have been various problems such as the necessity of supplementing formic acid or oxalic acid, the necessity of regular high-temperature purging operation, and the fact that the structure is complicated, which is not suitable for mass production.

[0005] Further, Japanese Patent Application No. Hei.
In No. 316291 "Simplified inspection method of a suction type CO gas detector", the above-mentioned CO gas generator is intended only for a suction type gas detector, and includes a CO gas including all diffusion type gas detectors. It is not a method applicable to gas detectors.

That is, when checking the gas checker, the check C
It is necessary to accurately measure the concentration of O gas, and perform zero adjustment and span adjustment.However, in household diffused gas detection alarms, the built-in CO gas detection unit detects CO gas,
This is a very simple check to make sure that an alarm is issued. Therefore, it is not required to be as precise as the inspection disclosed in the above-mentioned patent application. However, if the CO gas concentration in the atmosphere near the gas sensor becomes 500 ppm or more, it is possible to confirm that the sound is generated. The number of alarms must be extremely large and must be able to be checked at the place where the alarms are installed.

Therefore, in order to solve the problems of the conventional gas detection alarms in response to such demands, the present invention uses an inexpensive member that prepares a test gas at hand. Then, it is intended to provide a method and a device for easily inspecting the CO gas detection alarm by a simple operation of easily collecting and injecting it into the CO gas detection alarm. .

[0008]

The structure of the present invention for achieving the object will be described with reference to FIGS. 1 and 2 corresponding to the embodiment. The first invention is an LP mainly comprising butane.
The tip 2a of the gas suction port 2 of the gas sampling device 20 is located near the tip B of the internal flame of the flame A generated by the combustion of a specific gas such as a gas.
Is inserted into the gas storage unit 3 of the gas sampling unit 20, and the stored gas is brought into contact with the CO gas sensor 5 in the gas detection unit 6 so that the CO gas having the CO gas detection unit 6 is built-in.
This is a method for simply checking the gas detection alarm 4.

According to a second aspect of the present invention, in the first aspect, the flame A generated by the combustion of the specific gas is a flame by the pocket-type cigarette lighter 1, and the gas sampling device 20 is a dropper type CO gas detection alarm. This is a method for simply checking the container 4.

The apparatus according to the third aspect of the present invention comprises a gas writer 1 which generates a flame A by burning a specific gas, and a gas suction port 2a which is inserted near a tip end B of the flame A of the flame A to suck the gas A so as to have a certain concentration. It has a storage unit 3 for sucking and storing the test gas, and inserts or abuts the tip 2a of the gas suction port 2 on the gas inspection port 4a or the gas suction port 4b of the CO gas detection alarm 4, and the test gas is stored. This is a device for easily inspecting a CO gas detection alarm device which comprises a dropper type gas sampling device which comes into contact with the CO gas sensor 5 and which issues an alarm when the gas sensor reaches an atmosphere having a gas concentration of a certain level or more.

[0011]

According to the first and second aspects of the present invention, the flame generated by the combustion of the specific gas is a flame A generated by the pocket-type cigarette lighter 1. In the vicinity of the tip B of the inner flame, for example, the tip 2a of the suction port 2 of the dropper-type gas sampling device 20 is inserted to press the gas storage portion 3 of the dropper-type gas sampling device 20,
By relaxing, the test gas is once sucked and stored in the gas storage unit 3.

Next, the tip 2a of the suction port 2 of the dropper is connected to the inspection port 4a of the CO gas detection alarm 4 or the gas suction port 4b.
The test gas stored in the gas storage section 3 is injected or injected into the CO gas detection alarm 4 by a simple operation of inserting or abutting the test gas stored in the gas storage section 3.
By bringing the O gas into contact, the CO gas concentration in the atmosphere near the CO gas sensor 5 is set to 500 ppm or more, and C
This is a method for easily checking whether or not the O gas detection alarm 4 operates normally.

According to a third aspect of the present invention, a simple operation of the CO gas detection / alarm 4 simply checks whether or not the CO gas detection / alarm 4 operates correctly by a simple operation of the CO gas detection / alarm of the present invention. Device that can be. And, without using a special large-scale device, it is a device configured using a gas lighter or a gas lighter 1 for ignition and the like and the dropper type gas sampling device 20 such as the device of the present invention, wherein the specific gas is used. A gas lighter 1 that generates a flame due to the combustion of the gas, and a storage part 3 that temporarily sucks and stores a test gas having a constant concentration from a gas suction port 2 inserted near the tip end B of the generated flame A, The test gas injected into the CO gas detection alarm 4 by inserting or contacting the gas inspection port 4a or the gas suction port 4b of the CO gas detection alarm 4 into the CO gas detection alarm 4 Gas sensor 5
And a dropper-type gas sampling device 20 to be brought into contact with the gas sampling device.

The test gas is brought into contact with the gas sensor 5 built in the detection alarm device 4 so that other electric circuits and the like connected to the gas sensor 5 can also be operated normally to check whether or not an alarm is issued correctly. It is not only convenient in terms of cost, but also easy to operate, and can perform appropriate inspections very easily and safely at the site where the detection alarm is installed, preventing gas poisoning and improving the living environment. This is a device that can be improved.

As described above, the apparatus for easily inspecting the CO gas detection alarm of the third invention uses a test gas once stored in the gas storage unit 3 from the gas lighter to the CO gas detection alarm 4.
A dropper type gas sampling device 20 for bringing the test gas injected into the CO gas sensor 5 into contact with the CO gas sensor 5, wherein when the CO gas sensor 5 reaches an atmosphere having a certain gas concentration or more, a CO gas detection alarm device 4 for issuing an alarm Can be easily checked.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2 and 3 are diagrams showing an embodiment of the first to third inventions of the present application. FIG. 1 shows a mode in which a test gas is collected in a gas storage unit 3. FIG. 2 shows that the collected test gas is injected from the inspection port 4a of the CO gas detection alarm 4 and the CO gas sensor 5 of the built-in gas detector 6 is provided.
Shows an aspect in which the contact is made. Fig. 3 shows that the test gas is CO
Injected from the gas inlet 4b of the gas detection alarm 4
Another embodiment which is in contact with the gas sensor 5 is shown.

In FIG. 1, reference numeral 1 denotes a gas lighter, and a normal pocket storage type cigarette lighter is sufficient. The vicinity of the tip B of the internal flame of the flame A due to the combustion of the gas lighter 1 is most C
Since the O gas concentration is high, the tip 2a of the heat-resistant gas suction port 2 of the dropper type suction gas sampling device 20 having the ordinary rubber bag-shaped gas storage portion 3 is inserted into that portion, and the gas storage portion is inserted. 3 illustrates a mode in which the inside air is expelled by pushing or loosening 3 to extract and store the test gas until it is filled by suction.

FIG. 2 shows a tip 2a of a suction port 2 of a dropper type gas sampling device 20 having a normal rubber bag-shaped gas reservoir 3.
Is inserted into the inspection port 4a of the CO gas detection alarm 4 to press the gas storage unit 3 to send the test gas in the gas storage unit 3 into the CO gas detection alarm 4. When the test gas collected in the gas storage unit 3 is brought into contact with the CO gas sensor 5 built in the CO gas detection alarm 4 as described above, if the CO gas sensor 5 and the electric circuit connected thereto are normal, According to the contacted test gas, it operates properly and drives the alarm unit of the CO gas detection alarm 4 to sound an alarm.

FIG. 3 shows another embodiment of the present invention, in which the tip 2a of the suction port 2 of the dropper type gas sampling device 20 having the bellows-shaped gas storage portion 3 is connected to the CO gas detection alarm 4 by the gas suction. The bellows-shaped gas reservoir 3 is inserted into the port 4b.
Is pressed to send the test gas in the gas storage unit 3 into the CO gas detection alarm 4.

As described above, if the CO gas sensor 5 is not normal, even if the CO gas concentration in the atmosphere near the CO gas sensor 5 is 500 ppm or more, the CO gas sensor 5
Also, since the electric circuit does not operate and no alarm is issued, it can be immediately determined that the CO gas detection alarm 4 is malfunctioning. Therefore, by replacing the defective CO gas sensor 5 or the like with a normal one, the CO gas detection alarm 4 can be maintained in a state where the normal operation is always performed. Personal injury can be reliably prevented.

In the first invention, as shown in FIG.
The tip 2a of the heat-resistant gas suction port 2 made of metal or the like formed at the tip of the gas sampling device 20 is inserted or abutted near the tip of the internal flame B of the flame A generated by the combustion of the specific gas. As shown in FIGS. 2 and 3, the test gas of a certain concentration sucked and stored in the gas storage unit 3 of 20 is inserted or abutted into the inspection port 4 a or the gas suction port 4 b of the CO gas detection alarm 4, By injecting, CO contained in the gas detector 6
This is a method for checking whether or not the CO gas detection alarm 4 issues an alarm when the gas sensor 5 is brought into contact with the gas sensor 5 to reach an atmosphere (500 ppm) having a certain gas concentration or higher.

According to a second aspect of the present invention, the flame A generated by the combustion of the specific gas is a flame generated by the pocket-type cigarette lighter 1 and the gas detector 20 is a dropper type CO gas detection alarm 4. This is a simple check method.

The apparatus according to the third aspect of the present invention includes a gas writer 1 that generates a flame by burning a specific gas, and an inner flame tip B of the flame A.
In the vicinity, a dropper type gas sampling device 20 having a storage portion 3 into which the tip 2a of the gas suction port 2 is inserted and suction-stored to suck and temporarily store a test gas of a certain concentration is provided.

Then, the gas suction port 2a of the dropper type gas sampling device 20 is inserted or abutted with the gas inspection port 4a or the gas suction port 4b of the CO gas detection alarm 4, and the storage section 3 is pressed. CO gas detection alarm for injected test gas
4 by contacting the CO gas sensor 5 of the gas detection unit 6 with the CO gas sensor 5 and issuing an alarm when the CO gas sensor 5 reaches an atmosphere having a gas concentration of a certain level or more.
Is a device that can be easily checked.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of the embodiments, but has the above-mentioned constitutional requirements according to the present invention, and The present invention achieves the object of the present invention and can be appropriately modified and implemented within the range having the following effects.

[0026]

As is apparent from the above description, since the present invention has the above-described structure, the gaseous light of the dropper type gas sampling device is located near the tip of the inner flame of the gas lighter flame. By inserting the tip of the suction port and pressing the storage part, the test gas is sucked, collected and stored, and then the tip of the dropper is inserted into the inspection port or the suction port of the CO gas detection alarm or A simple operation of contacting and injecting into the CO gas detection alarm will check whether the CO gas detection alarm operates or not by contacting the CO gas sensor with a certain concentration of the test CO gas to the CO gas sensor. Used for

Therefore, the method for simply checking the CO gas detection alarm of the present invention is very simple, accurate, and accurate.
The CO gas detection alarm can be checked. As a result, without using a special large-scale device, a CO gas detection alarm can be regularly inspected using a nearby gas lighter, dropper or the like as in the device of the present invention. It became easy to carry out patrols.

In addition, since the inspection operation is simple, a proper inspection can be performed very easily and safely.
It is possible to expect the effect of improving the living environment including the prevention of gas poisoning.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view showing a method of collecting a test gas in one embodiment of the present invention.

FIG. 2 is an external view showing a mode in which a test gas is injected from an inspection port of a CO gas detection alarm.

FIG. 3 is an external view showing another mode of injecting a test gas from a gas inlet of a CO gas detection alarm.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas lighter 2 Suction port 2a Tip of suction port 3 Gas storage part 4 CO gas detection alarm 4a Inspection port 4b Gas suction port 5 CO gas sensor 6 Gas detection unit 20 Gas sampling unit A Flame B Tip of internal flame

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01N 1/00 102 G08B 21/14 WPI (DIALOG)

Claims (3)

(57) [Claims] 1. Inserting a tip of a gas suction port of a gas sampling device near a tip of an internal flame of a flame generated by combustion of a specific gas, and sucking and storing the gas in a gas storage portion to a gas detection portion. A simple method of checking a CO gas detection alarm by contacting it with a gas sensor. 2. The CO gas detection alarm according to claim 1, wherein the flame generated by the combustion of the specific gas is a flame generated by a pocket type cigarette lighter, and the gas sampling device is a dropper. How to check. 3. A gas lighter for generating a flame by burning a specific gas, and a storage portion for storing a test gas by inserting and sucking a gas suction port near a front end portion of the internal flame of the flame.
A CO gas detection and alarm device consisting of a dropper type gas sampling device that inserts or abuts the gas suction port on the gas inspection port or gas suction port of the O gas detection alarm device and brings the test gas into contact with the gas sensor. Equipment to check.