CN211358409U

CN211358409U - Gas mixing device

Info

Publication number: CN211358409U
Application number: CN201921813510.5U
Authority: CN
Inventors: 江晓松
Original assignee: Shanghai Xianpu Gas Technology Co ltd
Current assignee: Shanghai Xianpu Gas Technology Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-08-28
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a gas mixing device belongs to gas mixing technical field. The device comprises two branch pipes and a mixing tank, wherein each branch pipe is sequentially provided with a pressure regulating valve, a flowmeter and a needle valve. The utility model discloses mainly be compressed air and nitrogen gas are in the blending tank respectively through the inside that diffusion pipeline got into the blending tank to self physical property according to compressed air and nitrogen gas makes compressed air and nitrogen gas contact and primary mixing in the blending tank, then under the effect of back flow again, make between two diffusion pipelines that the gas through primary mixing returned to the blending tank once more, with two the blowout gas of diffusion pipeline mixes once more, thereby improves the mixed degree of compressed air and nitrogen gas, has replaced original hybrid mode when stirring through the wind wheel, thereby has avoided making the poor condition of mixed effect appear because of the damage of wind wheel.

Description

Gas mixing device

Technical Field

The utility model relates to a gas mixing device belongs to gas mixing technical field.

Background

When the two gases are mixed, the two gases are mainly introduced into a unified pipeline and/or a same storage tank by utilizing a pressure regulating valve respectively, and then the mixed gas in the pipeline and/or the storage tank enters the next application environment by utilizing a pipeline communicated with the pipeline and/or the storage tank.

At present, there are many mixing modes of two gases, for example, patent application No. 201821148036.4, entitled "a gas mixing device", and the mode that it adopted is that the gas that utilizes first intake pipe inflow drives the wind wheel and mixes two kinds of gases, adopts the mode similar to stirring to mix promptly, and this kind of mode has the defect, and the wind wheel in the gas mixing device needs to utilize the connecting piece to connect in the gas mixing device promptly, uses a period of time after, and connecting piece and wind wheel can produce wearing and tearing to the condition that the gas mixing effect is not good appears.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the utility model provides a mix gas device, it has solved among the prior art, adopts the wind wheel to bring the problem of defect when mixing two kinds of gas.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

gas mixing device, including two branch pipes and blending tank, every install air-vent valve, flowmeter, needle valve in proper order on the branch pipe, the other end of two branch pipes all runs through and stretches into the inside of blending tank, two the part that the branch pipe is located the blending tank all communicates diffusion pipeline, two diffusion pipeline all is the level setting in the inside of blending tank, two diffusion pipeline is vertical direction setting between two liang, every one side of diffusion pipeline has all seted up a plurality of gas pockets, one of them the gas pocket on the diffusion pipeline is corresponding with another gas pocket on the diffusion pipeline, one side intercommunication of blending tank has the reducing pipe, the one end of reducing pipe stretches out the blending tank and communicates there is the mixing tube, the intercommunication has the back flow on the lateral wall of mixing pipe, the one end of back flow also communicates there is the reducing pipe, stretches into and runs through the inside of blending tank with the one end of the reducing pipe that the back flow communicates, and is located between the two diffuser pipes.

In a preferred embodiment, an end of the mixing pipe is connected to an external pipeline, the mixing pipe between the mixing tank and the return pipe is provided with a manual valve and a flow meter with a control valve, and the mixing pipe between one end of the return pipe and the reducing pipe connected to the mixing pipe is also connected to a manual valve.

As a preferred example, a narrow portion of one of the reducing pipes communicates with the mixing pipe, a wide portion of the reducing pipe communicates with the mixing tank, a wide portion of the other reducing pipe communicates with the return pipe, and a narrow portion of the other reducing pipe communicates with the mixing tank.

As a preferred example, a pressure gauge is mounted on each of the pressure regulating valves.

The utility model has the advantages that: the utility model discloses mainly be compressed air and nitrogen gas are in the blending tank respectively through the inside that diffusion pipeline got into the blending tank to self physical property according to compressed air and nitrogen gas makes compressed air and nitrogen gas contact and primary mixing in the blending tank, then under the effect of back flow again, make between two diffusion pipelines that the gas through primary mixing returned to the blending tank once more, with two the blowout gas of diffusion pipeline mixes once more, thereby improves the mixed degree of compressed air and nitrogen gas, has replaced original hybrid mode when stirring through the wind wheel, thereby has avoided making the poor condition of mixed effect appear because of the damage of wind wheel.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a portion B in fig. 1.

In the figure: the device comprises a branch pipe 1, a mixing tank 2, a pressure regulating valve 3, a flowmeter 4, a diffusion pipeline 5, a reducing pipe 6, a mixing pipe 7, a return pipe 8, a needle valve 9, a manual valve 10, a flowmeter 11 with a control valve and a pressure gauge 12.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-3, the gas mixing device comprises two branch pipes 1 and a mixing tank 2, wherein each branch pipe 1 is sequentially provided with a pressure regulating valve 3, a flow meter 4 and a needle valve 9, the other ends of the two branch pipes 1 penetrate through and extend into the mixing tank 2, the parts of the two branch pipes 1 located in the mixing tank 2 are communicated with diffusion pipelines 5, the two diffusion pipelines 5 are horizontally arranged in the mixing tank 2, the two diffusion pipelines 5 are vertically arranged, one side of each diffusion pipeline 5 is provided with a plurality of air holes, the air hole on one diffusion pipeline 5 corresponds to the air hole on the other diffusion pipeline 5, one side of the mixing tank 2 is communicated with a reducing pipe 6, one end of the reducing pipe 6 extends out of the mixing tank 2 and is communicated with the mixing pipe 7, the side wall of the mixing pipe 7 is communicated with a return pipe 8, one end of the return pipe 8 is also communicated with the reducing pipe 6, one end of the reducing pipe 6 communicated with the return pipe 8 extends into and penetrates the interior of the mixing tank 2 and is located between the two diffusion pipes 5.

The end of the mixing pipe 7 is connected with the external pipeline, the mixing pipe 7 between the mixing tank 2 and the return pipe 8 is respectively provided with a manual valve 10 and a flow meter 11 with a control valve, and the mixing pipe 7 between one end of the return pipe 8 and the reducing pipe 6 connected with the mixing pipe 7 is also connected with the manual valve 10.

One of the narrow portions of the reducing pipes 6 is communicated with the mixing pipe 7, the wide portion of the reducing pipe 6 is communicated with the mixing tank 2, the wide portion of the other reducing pipe 6 is communicated with the return pipe 8, and the narrow portion of the other reducing pipe 6 is communicated with the mixing tank 2.

Each pressure regulating valve 3 is provided with a pressure gauge 12.

The working principle is as follows:

firstly, opening needle valves 9 on two branch pipes 1, enabling nitrogen in one branch pipe 1 and compressed air in the other branch pipe 1 to be measured by a flow meter 4 respectively to obtain the content of the compressed air and the content of the nitrogen, then respectively conveying the compressed air and the nitrogen to a mixing tank 2 through the two branch pipes 1, observing a pressure gauge 12 on a pressure regulating valve 3 and adjusting the pressure regulating valve 3 in the conveying process, so that the compressed air and the nitrogen quantitatively enter the mixing tank 2, the compressed air is sprayed out from an air hole of one pressure expansion pipeline 5, the nitrogen is sprayed out from an air hole of the other pressure expansion pipeline 5, and the compressed air goes downwards and the nitrogen goes upwards due to the fact that the density of the compressed air is greater than that of the nitrogen, and the compressed air and the nitrogen are contacted for a certain time until the nitrogen is primarily mixed;

II, then opening a manual valve 10 on a mixing pipe 7 between the return pipe 8 and the mixing tank 2 and a manual valve 10 on the return pipe 8, and closing another manual valve 10 on the mixing pipe 7, so that the primary mixed gas sequentially passes through the reducing pipe 6, the mixing pipe 7, the return pipe 8 and the reducing pipe 6 and reenters the mixing tank 2 for secondary mixing;

III, repeating the step I and the step II for multiple times, thereby improving the mixing degree of the compressed air and the nitrogen.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Mix gas device includes two spinal branch pipes and blending tank, its characterized in that: every branch pipe is sequentially provided with an air-vent valve, a flowmeter and a needle valve, the other ends of the two branch pipes penetrate through and extend into the mixing tank, the parts of the two branch pipes, which are positioned in the mixing tank, are communicated with diffusion pipelines, the two diffusion pipelines are horizontally arranged in the mixing tank, the two diffusion pipelines are vertically arranged, one side of each diffusion pipeline is provided with a plurality of air holes, one air hole on one diffusion pipeline corresponds to the other air hole on the diffusion pipeline, one side of the mixing tank is communicated with a reducing pipe, one end of the reducing pipe extends out of the mixing tank and is communicated with the mixing pipe, the side wall of the mixing pipe is communicated with a return pipe, one end of the return pipe is also communicated with the reducing pipe, and one end of the reducing pipe communicated with the return pipe extends into and penetrates through the mixing tank, and is located between the two diffuser pipes.

2. The gas mixing device according to claim 1, characterized in that: the end part of the mixing pipe is communicated with an external pipeline, the mixing pipe between the mixing tank and the return pipe is respectively provided with a manual valve and a flow meter with a control valve, and the mixing pipe between one end of the return pipe and the reducing pipe communicated with the mixing pipe is also communicated with the manual valve.

3. The gas mixing device according to claim 1, characterized in that: the narrow part of one of the reducing pipes is communicated with the mixing pipe, the wide part of the reducing pipe is communicated with the mixing tank, the wide part of the other reducing pipe is communicated with the return pipe, and the narrow part of the other reducing pipe is communicated with the mixing tank.

4. The gas mixing device according to claim 1, characterized in that: and each pressure regulating valve is provided with a pressure gauge.