JP2713853B2 - Gas alarm check method and gas alarm check bag - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection method for a gas alarm and an inspection bag for the gas alarm, and more particularly to an inspection of a gas alarm using a small amount of low concentration carbon monoxide (CO) gas. The present invention relates to a gas alarm check method and a gas alarm check bag capable of performing the following.

[0002]

2. Description of the Related Art It is necessary to confirm whether or not a gas alarm that detects leakage of a gas harmful to the human body such as carbon monoxide (CO) gas operates normally. As an inspection device of this type, an inspection device described in Japanese Utility Model Laid-Open No. 57-2468 is conventionally known.

In the gas leak detection device described in Japanese Utility Model Laid-Open Publication No. 57-2468, a cover member covers a gas vent and an inspection port area of a gas alarm device, and in this state, the inspection gas is supplied to the alarm device inspection port. It is intended to be sprayed on. Since this device is mainly for checking an alarm that detects gas leaks such as liquefied propane gas (LPG) and natural gas (TG), it is liquefied by continuously blowing gas for about 10 to 20 seconds. Gas leaks of propane gas and natural gas can be detected. However, when performing an inspection using carbon monoxide gas with this inspection device, the gas must be sprayed for a long time because the response time to the gas is as long as about 1 minute to 5 minutes. Because it is difficult to completely seal the
Considering the effects on the human body, high-concentration carbon monoxide gas cannot be used.

Therefore, as shown in Japanese Utility Model Application Laid-Open No. 4-4266, the present applicant accommodates a gas alarm in a pack which is a bag, and in this state, injects gas into the inside of the pack from a gas inlet. Then, a gas alarm checker that can check the gas alarm inside the pack was proposed.

[0005] Further, an alarm is hermetically contained in an inspection bag (bag), and a syringe prepared separately from the inspection bag is filled with a prescribed amount of carbon monoxide gas. An incomplete combustion alarm inspection kit (including an inspection bag, a syringe with a stopper, and a carbon monoxide cylinder), which is configured to inject gas into an inspection bag and inspect the alarm, is also commercially available. I have.

[0006]

However, in the inspection device for a gas alarm device proposed by the present applicant in Japanese Utility Model Application Laid-Open No. 4-4266, gas is injected into the interior of the pack from a gas cylinder by a certain amount based on experience. I will do an inspection
The problem remains that the gas injection volume is irregular and lacks certainty.

[0007] In addition, a check kit for once injecting a predetermined amount of carbon monoxide gas from a cylinder into a syringe and then re-injecting carbon monoxide gas from the syringe into a check bag,
The amount of gas injected can always be constant, but this requires a piston stopper to inject the specified amount of gas into the syringe, complicating the structure of the syringe and reducing its cost. There is a problem of getting higher. Further, it is troublesome to once inject the carbon monoxide gas into the syringe and then re-inject it into the inspection bag.

Therefore, the present invention uses an inspection bag having a simple structure that can easily and reliably inspect the gas alarm without using any props other than the bag capable of storing the gas alarm. It is an object of the present invention to provide a method for checking a gas alarm device and a bag for checking the gas alarm device.

[0009]

In order to achieve the above object, a method for inspecting a gas alarm according to the present invention comprises inserting the gas alarm into an inspection bag, and injecting a gas having a concentration higher than the alarm concentration into the inspection bag. A method for inspecting a gas alarm device by using a bag having an openable / closable opening on the negative side, a gas inlet on the other side of the bag, and a passage capable of sealing the inside of the bag by finger pressure. A step of preparing an inspection bag partitioned into two rooms, a small room provided on the gas inlet side and an alarm device storage room provided on the opening side, and the opening and closing opening. Opening and storing a gas alarm device in the alarm device storage room, sealing and operating the gas alarm device, and, in a state where the passage portion is sealed with a finger pressure, a gas having a concentration equal to or higher than the alarm concentration in the small room. Full filling, shut off the seal in the passage, push the compartment and press Sending the gas filled in the room into the alarm storage room and waiting until the gas alarm issues an alarm; if an alarm is generated, the gas alarm is normal; if no alarm is generated, the gas is The alarm device is characterized by comprising a step of determining an abnormality.

The inspection bag for a gas alarm according to the present invention, which achieves the above object, accommodates the gas alarm in an operating state.
A check bag for injecting a gas having a concentration equal to or higher than the alarm concentration into the gas alarm to check the gas alarm device, which is entirely made of an airtight material, and has an openable and closable opening on the negative side of the bag, A gas inlet is provided on the other side of the bag, and a small room provided on the gas inlet side except for a passage portion capable of sealing the inside of the bag by finger pressure, and an alarm device provided on the opening side. It is characterized by being divided into two rooms.

[0011]

According to the gas alarm inspection method and the gas alarm inspection bag of the present invention, the inspection bag is divided into an alarm storage room and a small room through an air passage, With the air passage closed, the gas alarm is sealed and stored in the alarm storage room in the operating state, and the small room is filled with carbon monoxide gas. The gas alarm can be checked by introducing the carbon oxide gas into the alarm storage room. In this way, the amount of carbon monoxide gas is determined by the size of the small room, so that it is possible to always fill the alarm storage room with the correct concentration of carbon monoxide gas and accurately check the gas alarm. Can be performed.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows members required for carrying out the inspection method of a gas alarm according to the present invention. In the figure, reference numeral 1 denotes a gas alarm inspection bag, 2 denotes a standard gas cylinder,
Reference numeral 3 denotes a nozzle attached to the gas discharge port 21 of the standard gas cylinder 2, and reference numeral 4 denotes a tube through which gas passes.

The inspection bag 1 is made of an airtight material, for example, a material such as vinyl fluoride, and has a square shape. An openable / closable sealing chuck 11 is provided on the side of the opening 1a of the inspection bag 1, and a gas inlet 12 is provided on the other side of the inspection bag 1, that is, near the bottom 1b. The interior of the inspection bag 1 is divided by a partition 13 into an alarm storage room 1A for storing an alarm described later and a small room 1B including a gas inlet 12. The partition 13 can be formed by heat-welding the inspection bag 1. And this partition 1
Numeral 3 does not completely separate the alarm storage room 1A and the small room 1B, and the alarm storage room 1A and the small room 1B are communicated with each other by the ventilation portion 14. The width of the ventilation part 14 is about the thickness of a person's finger, and when a person sandwiches the ventilation part 14 from both sides with fingers from the outside of the inspection bag 1, the ventilation part 14 is completely sealed, The communication between the alarm storage room 1A and the small room 1B is interrupted.

The capacity of the alarm storage room 1A of the inspection bag 1 is large enough to store a gas alarm described later, for example, about 2 to 5 liters. As the sealing chuck 11 provided in the opening 1a, a sealing chuck which is sealed by pressing from both sides of the inspection bag 1,
The one in which the opening 1a is opened and closed by moving the slider can be used.

The capacity of the small room 1B is
The capacity is such that the alarm is activated when B is filled with the standard gas and diffused throughout the inspection bag. The carbon monoxide gas alarm is generally set to an alarm set concentration of carbon monoxide gas of 50 ppm to 200 ppm, and is configured to generate an alarm when exposed to this concentration for a predetermined time. Thus, for example, a concentration of 10.0
When the standard gas cylinder 2 filled with 00 ppm of carbon monoxide gas is used and the carbon monoxide gas filled in the small room 1B is diffused into the alarm storage room 1A, the concentration of the carbon monoxide gas becomes 250 to 500 ppm. What is necessary is just to determine the capacity of the small room 1B.

The standard gas cylinder 2 has a concentration of 10,000 p.
The standard gas cylinder 2 is provided with a nozzle 3 at a gas discharge port 21 thereof, and a gas inlet provided at the tip of the nozzle 3 and the inspection bag 1. 12 is connected to the inspection bag 1 from the standard gas cylinder 2 by pressing the nozzle 3.

Next, a method for checking whether the gas alarm is normal or abnormal using the inspection bag 1, the standard gas cylinder 2, the nozzle 3, and the tube 4 configured as described above will be described with reference to FIG. The explanation is given step by step using a) to (f).

First, as shown in FIG. 2A, the nozzle 3 is attached to the standard gas cylinder 2, and the standard gas cylinder 2 is connected to the inspection bag 1 using the tube 4.

Next, as shown in FIG.
, The opening 1a is opened, and the gas alarm 5 is stored in the alarm storage room 1A.

Then, as shown in FIG. 2 (c), the sealing chuck 11 of the inspection bag 1 is closed so that the power cord 6 of the gas alarm 5 comes to the end when the chuck 11 is closed. The plug 7 of the gas alarm 5 is inserted into the outlet 8, and the gas alarm 5 is activated. At this time, about 2
During 0 seconds, the self-check function of the alarm 5 is activated, and a lamp blinks, a buzzer sounds, and the like.

When the preparation for inspection of the gas alarm device 5 is completed in this way, as shown in FIG. 2 (d), the ventilation portion 14 of the inspection bag 1 is sandwiched from both sides with the fingers of the hand H to store the alarm device. Room 1
A and the small room 1B are completely sealed. In this state, the nozzle 3 attached to the standard gas cylinder 2 is pushed, and carbon monoxide gas is filled in the small chamber 1B of the inspection bag 1. The carbon monoxide gas is supplied until the small room 1B is full.

Subsequently, as shown in FIG. 2 (e), the portion of the power cord 6 at the end of the sealing chuck 11 is pinched with a hand H or the like so that carbon monoxide gas does not leak easily. Release the finger from the ventilation part 14 and press the small room 1B with the hand H to release the carbon monoxide gas in the small room 1B into the alarm storage room 1A.
So that the entire inspection bag 1 is filled with carbon monoxide gas.

In this state, a predetermined time, for example, three minutes, at which the gas alarm device 5 activates the alarm is waited. And after 3 minutes Figure 2
As shown in (f), if the gas alarm 5 generates an alarm,
The alarm 5 can be determined to be normal, and if no alarm is generated, the alarm 5 can be determined to be abnormal. After the inspection of the gas alarm 5 is completed in this way, the chuck 11 is opened, the alarm 5 is taken out of the inspection bag 1, and left until the alarm stops.

According to this embodiment, the gas alarm 5 can be inspected only by using a small amount of carbon monoxide gas. For example, the inspection can be performed by using the inspection bag 1 of 5 liters in a closed room of 20 m 3. Even if the inspection is performed 100 times with the inspection gas of 250 ppm, the concentration of carbon monoxide gas discharged from the inspection bag 1 in the room is 6.25 ppm, which is not a concentration that affects the human body.

As described above, according to the method of the present invention, the carbon monoxide gas alarm device 5 having a slow response speed is inspected only by filling a small amount of the carbon monoxide gas into the inspection bag. Safe, low cost inspection because no other props are used. Further, since the gas alarm 5 can be inspected while the inspection bag 1 is closed and the gas alarm 5 is left, the workability is improved. In the above-described embodiment, the alarm device for carbon monoxide gas has been described. However, the inspection method of the gas alarm device and the inspection bag for the gas alarm device of the present invention are also applied to the inspection of other gas alarm devices. be able to.

FIG. 3 is a perspective view showing the structure of an inspection bag 1 'of another embodiment of the inspection bag 1 used in the inspection method of the gas alarm of the present invention. The inspection bag 1 'is partially cut away. FIG.
In the inspection bag 1 ', the same components as those of the inspection bag 1 of the embodiment described with reference to FIG.

The difference between the inspection bag 1 'of the gas alarm of the embodiment shown in FIG. 3 and the inspection bag 1 shown in FIG. 1 is that an outlet is provided in the alarm storage room 1A of the inspection bag 1'. 15, a power cord 16 is connected to the outlet 15, and a plug 17 is provided at the end of the power cord 16.

As described above, when the outlet 15 is provided in the alarm storage room 1A of the inspection bag 1 ', as shown in FIGS. 2 (c) to 2 (f), the sealing of the inspection bag 1 is performed. Chuck 1
There is no need to pull out the power cord 6 of the gas alarm 5 from the end of the gas alarm 1, and the seal 1
The carbon monoxide gas in the inspection bag 1 'does not leak to the outside from the seal portion 1 and the inspection accuracy is improved.

[0030]

As described above, according to the present invention,
There is an effect that the gas alarm can be easily and reliably inspected without using any props other than the bag capable of storing the gas alarm.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of members necessary for carrying out a gas alarm device inspection method according to an embodiment of the present invention.

2 (a) to 2 (f) are explanatory diagrams showing a procedure for inspecting a gas alarm using the members shown in FIG. 1. FIG.

FIG. 3 is a partially cutaway perspective view showing the configuration of another embodiment of the inspection bag of the gas alarm device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inspection bag of gas alarm of one Example of this invention 1 '... Inspection bag of gas alarm of another Example of this invention 1A ... Alarm storage room 1B ... Small room 2 ... Standard gas cylinder 3 ... Nozzle 4 ... Tube 5 ... Gas alarm 6 ... Power cord 7 ... Plug 8 ... Outlet 11 ... Sealing chuck 12 ... Gas inlet 13 ... Partition 14 ... Vent section 15 ... Outlet 16 ... Power cord 17 ... Plug

Claims (2)

(57) [Claims] 1. A method in which a gas alarm is placed in an inspection bag, and a gas having a concentration higher than an alarm concentration is injected into the inspection bag to check the gas alarm. There is a small opening, a gas inlet is provided on the other side of the bag, a small room provided on the gas inlet side leaving a passage portion that can be sealed by finger pressure in the bag, and on the opening side Preparing an inspection bag partitioned into two rooms of the provided alarm storage room; opening the openable and closable opening to store a gas alarm in the alarm storage room; State, and in a state where the passage is sealed with finger pressure, filling the small room with a gas having a concentration equal to or higher than the alarm concentration, stopping the seal of the passage, and pressing the small room. Sending the gas filled in the small room into the alarm storage room; Waiting until the gas alarm issues an alarm, determining that the gas alarm is normal if an alarm is generated, and determining that the gas alarm is abnormal if no alarm is generated, How to check the container. 2. An inspection bag for accommodating a gas alarm device in an operating state and injecting a gas having a concentration higher than the alarm concentration into the inspection bag to check the gas alarm device, the whole being made of an airtight material. The bag is provided with an opening that can be opened and closed on the negative side, a gas inlet is provided on the other side of the bag, and the inside of the bag is provided on the gas inlet side except for a passage portion that can be sealed by finger pressure. An inspection bag for a gas alarm device, which is divided into a small room and an alarm device storage room provided on the opening side.