JPH0452619Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention easily collects unnecessary gases from refrigerators, cold storage warehouses, air-conditioning equipment, etc., and other equipment into a recovery tank. It is also a tool that can be used to form emergency or permanent bypass circuits in gas equipment, etc., and to easily collect samples for various gas sampling inspections without disassembling the equipment. Regarding.

(Conventional technology) CFC gas used as a refrigerant or a heat medium in refrigerators, frozen warehouses, air-conditioning equipment, etc. can be recovered and reused, but because the recovery process is time-consuming, most of them are disposed of when the chiller is disposed of. It had been abandoned. Additionally, when installing a bypass circuit in a gas equipment, etc., the equipment was temporarily stopped.

(Problem that the invention aims to solve) Leaving fluorocarbon gas, etc., causes problems in terms of air pollution and resource reuse, but the recovery tank and compressor can be easily connected and the gas can be recovered without leaking. There was a problem in that there were no connecting tools and it was not possible to easily collect it anywhere. Furthermore, it is time consuming and uneconomical to temporarily stop the device.

(Means for Solving the Problems) The present invention was made to solve the problems of the conventional methods, and it is possible to recover fluorocarbon gas, etc. anywhere without gas leakage, easily and easily. To provide a gas recovery tool capable of providing a bypass circuit in a device without stopping the device and facilitating gas sampling inspection.

The gist of this is to create multiple gas pipe fixing holes of different diameters that are drilled in the direction of the clamping surfaces of a hand-held vise that meet each other, and to cover the inner surfaces with packing. A sharp, hard pipe with a screw hole formed on one tightening surface that communicates with the fixing hole from the back, and an elbow-shaped joint that screws into the same screw hole to open the wall surface of the gas pipe fixed to the fixing hole. Equipped with a wall opening needle, extend the pipe wall opening needle to the outside of the elbow joint with the penetration part in an airtight state, fix the handle, fix the gas pipe with the fixing hole, and use the pipe wall opening needle to secure the gas pipe. This gas recovery tool is characterized by drilling a hole in a wall surface and recovering the gas inside to an external recovery tank through an elbow joint.

(Function) In the present invention, a gas pipe fixing hole is provided in the clamping surface of the vise, and a screw hole is formed that communicates with the fixing hole and the back surface of the clamping surface.

Further, an elbow joint that is screwed into the screw hole is provided with a pipe wall opening needle.

When recovering gas, use gas pipes on both the inlet and outlet sides of the compressor. First, attach the gas pipe to the fixing hole that has the same diameter as the gas pipe that communicates with the bottom of the compressor, and firmly tighten it in a vise. At this time, the surface of the gas pipe is in close contact with the fixing hole via the packing.
Then, the side of the elbow-shaped joint where the pipe wall opening needle is located is screwed into the screw hole that communicates with this fixing hole, and the other side is communicated with the recovery tank through a copper pipe or the like. After tightening each part completely, turn the handle of the elbow joint and pierce the wall of the gas pipe with the pipe wall opening needle.
In addition, an elbow joint is similarly attached to the gas pipe communicating above the compressor, and this elbow joint is connected to the top of the recovery tank, thereby creating a flow path for vaporized gas by communicating the top of the compressor and the recovery tank. is formed and the fluorocarbon gas, etc. is collected in a recovery tank.

Furthermore, a bypass circuit can be easily created by extending a pair of elbow joints using copper pipes and communicating the necessary points. Its installation can be used not only temporarily but also permanently. In that case, both ends of the arm may be securely fastened together with bolts or the like.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The vise 1 of this embodiment has a shape in which one end of a pair of elongated rectangular arms 2, 2 is rotatably held by rollers 3, and the arms 2, 2 are tightened together by a screw type presser 4. ing.

In the figure, 5 is a tightening surface, 6 is a fixing hole, 7 is a packing attached to the inner circumference of the fixing hole, 8 is a back surface, 9 is a screw hole, 10 is an elbow type joint, 11 is a pipe wall opening needle, Reference numeral 12 represents a handle, and reference numeral 13 represents a through portion having a threaded portion.

Further, 14 is a gas pipe communicating with the lower part of the compressor 15, and 16 is a gas pipe communicating with the compressor 15.
17 is a pipe wall, 18 is a recovery tank, 19 is a safety valve, 20 is a fluorocarbon gas, and 21 is a pump.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment.

For example, the shape of the vise, the number of fixing holes, the shape of the penetration part of the elbow joint, etc. can be arbitrarily determined.

Furthermore, it can be used not only for refrigerators but also for various gas devices, and can be applied to various gases such as nitrogen gas and ammonia gas, not just chlorofluorocarbon gas.

(Effects of the invention) As explained above, according to the invention, the gas pipe is tightened and fixed with a vise, and the tightened part is opened with a needle to collect the gas, so anyone can easily perform complicated operations. It can be easily connected to a recovery tank without any connection, and gas can be recovered without leaking.

Moreover, it has the advantage of being simple in structure and inexpensive to manufacture.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the main part showing the opening state of the wall surface of the gas pipe, and FIG. 3 is an explanatory diagram showing the state during gas recovery. 1... Vise, 2... Arm, 5... Tightening surface, 6
... Fixing hole, 7 ... Packing, 8 ... Back,
9...Screw hole, 10...Elbow type joint, 11...
Pipe wall opening needle, 12...Handle, 13...Penetration part, 14, 16...Gas pipe, 17...Pipe wall, 20...Freon gas.

Claims (1)

[Scope of utility model registration request] A hand-held vise is provided with multiple gas pipe fixing holes of different diameters drilled in the direction of the clamping surfaces that face each other, and packing is applied to the inner surface of the clamping surface of one of the clamping surfaces. A screw hole is formed from the back of the attachment surface to the fixing hole, and a sharp, hard pipe wall opening needle is attached to the elbow joint that is screwed into the screw hole to open the wall of the gas pipe fixed to the fixing hole. Prepare the pipe wall opening needle by extending it to the outside of the elbow joint with the penetration part in an airtight state, fixing the handle, fixing the gas pipe with the fixing hole, and drilling the wall surface of the gas pipe with the pipe wall opening needle. A gas recovery tool characterized by recovering internal gas to an external recovery tank through an elbow joint.