JPS629312Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cartridge tank for storing an odorant added to fuel gas such as city gas or propane gas so that leakage thereof can be easily detected.

Conventionally, when adding odorants to fuel gas, odorants are obtained from manufacturers in bottles, pails, drums, tanks, etc.; The user must supply the odorant to the odorant addition equipment by means such as transferring it to a container attached to it, and the strong odor cannot be avoided when supplying the odorant to the odorant addition equipment.
There was a big problem in terms of the working environment, and there was also the drawback that the burden on the equipment required to improve the working environment was large.

In view of the above-mentioned circumstances, the present invention has been developed to improve the work environment by allowing users to add odorants without any odor from the odorants scattering, and to improve the equipment. The aim is to minimize the economic burden.

The fuel gas odorant cartridge tank according to the present invention has a bag-like body that forms a sealed space for storing the odorant in a case, the volume of which can be freely changed by deformation, and an opening/closing section that communicates with the bag-like body. The present invention is characterized in that a flow path with a valve is provided, and a biasing extrusion device is provided that acts on the bag-like body to reduce its volume.

That is, a device that biases and extrudes the odorant inside the bag, for example, a structure that can pressurize the sealed space formed between the bag and the case, or a spring or weight that acts on the bag. Because the user simply connects the flow path with an on-off valve to the odorant addition equipment and opens the flow path, the user can add the odorant to the completely sealable bag-like body. Since the odorant is stored in a piston pump type container, the odorant does not easily leak due to the extrusion function, which is the case when storing the odorant in a piston pump type container. Since the odorant is provided inside the case, there is almost no risk of accidentally puncturing the bag-like body, and as a result, the user can inject the odorant into the fuel gas without any strong odorant odor being scattered. This made it possible to make the work environment extremely favorable, and to minimize the economic burden.

Next, embodiments of the present invention will be described with reference to illustrative drawings.

A bellows-shaped cylindrical body 3 is connected to the bottom wall 1a and the lifting plate 2 in a hard sealed case 1 to form a sealed space 4 for storing an odorant such as tetrahydrothiophene, A pipe 6 with an on-off valve 5 for supplying and discharging an odorant to and from the closed space 4
and connect the odorant addition equipment A to the free end of pipe 6.
A pipe that connects the case 1 to equipment B that supplies a fluid for biasing the lifting plate 2 downward, preferably air, nitrogen gas, carbon dioxide gas, etc., into the case 1. 7. A measuring instrument 1 that is equipped with a pressure gauge 8 that detects internal fluid pressure and a safety valve 9 that prevents abnormal increases in internal fluid pressure, and that displays the stored amount of odorant in conjunction with the lifting plate 2.
0 is attached and attached, depending on the manufacturer, the closed space 4
A cartridge tank C is configured to contain an odorant and provide it to the user.

The odorant addition equipment A is configured by supplying an odorant to a pipe 6 with an on-off valve 5 of a cartridge tank C placed on a pedestal 12 to a conduit 11 for fuel gas such as city gas. Connect the pipe 13,
The odorant supply pipe 13 is connected to an odorant drip confirmation device 14, a flow rate control valve 15, a flow meter 16, a deodorant supply pipe 17, a deodorant discharge pipe 18, and valves V ₁ to V ₆ for various purposes. is attached. In other words, valves V ₅ and V ₆ are closed and the other valve V _{1 is} closed.
With V ₄ open, an appropriate amount of the odorant pushed out from the closed space 4 is supplied into the conduit 11 to odorize the fuel gas in the conduit 11 and odorize the fuel gas inside the closed space 4. When the agent runs out, valves 5 and V ₄ are closed, valves V ₅ and V ₆ are opened, and the deodorizing agent is supplied from the pipe 17 to deodorize the odorant in the pipe 13 and remove it from the pipe 18. After that, the cartridge tank C is replaced and the odorant is supplied again.

The structure forming the odorant storage sealed space 4 may be any structure as long as it can change its volume by deformation, and these are collectively referred to as the bag-like structure 3.
Furthermore, various means can be used to act on the bag-shaped body 3 to reduce its volume, such as a structure using a spring or a weight, and these are collectively referred to as a biasing extrusion device 7. If the bag-like body 3 is made into a rubber balloon shape that can be easily contracted, the bag-like body 3 itself can be used as a biasing extrusion device.

Various channel configurations can be employed to supply the odorant from the bag-shaped body 3, and these are collectively referred to as a channel 6 with an on-off valve 5.

When configuring the cartridge tank C, any or all of the pressure gauge 8, safety valve 9, and measuring device 10 can be omitted, or other accessories can be added.

The odorant supply equipment to be supplied may be of any type.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the fuel gas odorant cartridge tank according to the present invention, and are explanatory diagrams showing the structure and usage type of the tank. DESCRIPTION OF SYMBOLS 1... Case, 3... Bag-like body, 4... Closed space, 5... On-off valve, 6... Channel, 7... Force extrusion device.

Claims (1)

[Scope of utility model registration request] Bag-like body 3 forming a sealed space 4 for storing an odorant
is provided in the case 1 so that its volume can be freely changed by deformation, and a flow path 6 with an on-off valve 5 communicating with the bag-like body 3 is provided.
A cartridge tank for an odorant for fuel gas, characterized in that the bag-shaped body 3 is provided with a biasing extrusion device 7 that acts to reduce the volume of the bag-shaped body 3.