CN216295804U

CN216295804U - Natural gas hydrogen-mixing gas mixing is with adjusting structure

Info

Publication number: CN216295804U
Application number: CN202122935736.6U
Authority: CN
Inventors: 宋贵生
Original assignee: Qingdao H Song Energy Equipment Co ltd
Current assignee: Qingdao H Song Energy Equipment Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-04-15
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses an adjusting structure for mixing natural gas with hydrogen, which comprises a gas collecting pipe, a driving connection gas pipe, a mixing box, a gas mixing mechanism, gas pipes and a sealing connecting piece, wherein the gas pipes comprise a hydrogen gas pipe, a natural gas pipe and a mixed gas pipe, one side of the gas collecting pipe is provided with a gas inlet pipe, the gas inlet pipe is provided with a flow control valve, the hydrogen gas pipe and the natural gas pipe are respectively connected with the gas inlet pipe through the sealing connecting piece, the driving connection gas pipe is arranged at the other side of the gas collecting pipe, the lower part of the mixing box is connected with the driving connection gas pipe, the gas mixing mechanism is arranged in the driving connection gas pipe and the mixing box, the upper part of one side of the mixing box is provided with a gas outlet pipe, and the mixed gas pipe is connected with the gas outlet pipe through the sealing connecting piece. The utility model belongs to the technical field of gas mixing, and particularly provides an adjusting structure for natural gas hydrogen-doped mixing, which is excellent in sealing performance and sufficient in gas mixing effect.

Description

Natural gas hydrogen-mixing gas mixing is with adjusting structure

Technical Field

The utility model belongs to the technical field of gas mixing, and particularly relates to an adjusting structure for natural gas hydrogen-doped mixed gas.

Background

The natural gas hydrogen doping is always an important research direction for hydrogen transportation and large-scale utilization at home and abroad, and has important significance for promoting the development of hydrogen energy industry in China. The mixing of natural gas and hydrogen is an important technical problem for safe transportation of the hydrogen-doped natural gas, if the initial mixing is insufficient, the phenomenon of uneven components will occur in the pipe for a long distance, which means that the hydrogen content in a local area is too high, and when the pipe is used for a long time, the area is easy to leak due to hydrogen embrittlement, so that explosion accidents are possibly caused. In addition, the connection mode between the existing adjusting structure for the hydrogen-doped mixed gas and the pipelines of the hydrogen tank, the natural gas tank and the mixed gas tank is simple, so that the connection part has the risk of gas leakage.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides the adjusting structure for the natural gas-hydrogen mixing, which has excellent sealing performance and sufficient gas mixing effect.

The utility model provides the following technical scheme: the utility model provides an adjusting structure for mixing natural gas with hydrogen, which comprises a gas collecting pipe, a driving connection gas pipe, a mixing box, a gas mixing mechanism, gas pipes and a sealing connecting piece, wherein the gas pipes comprise a hydrogen gas pipe, a natural gas pipe and a mixed gas pipe, one side of the gas collecting pipe is provided with a gas inlet pipe, the gas inlet pipe is provided with a flow control valve, the hydrogen gas pipe and the natural gas pipe are respectively connected with the gas inlet pipe through the sealing connecting piece, the driving connection gas pipe is arranged at the other side of the gas collecting pipe, the lower part of the mixing box is connected with the driving connection gas pipe, the gas mixing mechanism is arranged in the driving connection gas pipe and the mixing box, the upper part of one side of the mixing box is provided with a gas outlet pipe, and the mixed gas pipe is connected with the gas outlet pipe through the sealing connecting piece.

Further, mix gas mechanism and include drive shaft, drive impeller, transmission shaft, initiative cone pulley, mixing shaft and driven cone pulley, the drive shaft rotates and locates in the drive connection gas transmission pipe, drive impeller locates in the drive shaft, drive impeller is located the discharge pipe and drive connection gas-supply pipe connector department, the transmission shaft rotates and locates on the mixing box lateral wall, all be equipped with the belt pulley on drive shaft and the transmission shaft, the cover is equipped with the drive belt on the belt pulley of drive shaft and transmission shaft, the initiative toper is located on the transmission shaft, the mixing shaft rotates and locates on the mixing box roof, driven cone pulley is located on the mixing shaft, driven cone pulley and the meshing of initiative cone pulley, be equipped with mixing vane on the mixing shaft.

Furthermore, the diameter of the gas collecting pipe is larger than that of the driving connection gas conveying pipe, so that the driving force of the airflow flowing to the driving impeller is increased.

Further, all be equipped with the external screw thread on gas-supply pipe, intake pipe and the outlet duct, all be equipped with protruding inner column pipe on intake pipe and the outlet duct, the protruding inner column pipe of intake pipe and outlet duct is inlayed and is located in the gas-supply pipe, be equipped with the internal thread on the sealing connection spare, sealing connection spare passes through threaded connection and locates on intake pipe and the gas-supply pipe, sealing connection spare passes through threaded connection and locates on outlet duct and the gas-supply pipe.

Preferably, the protruding inner column tubes of the air inlet tube and the air outlet tube are both provided with a sealing groove, and a sealing ring is embedded in the sealing groove.

The utility model with the structure has the following beneficial effects: according to the adjusting structure for natural gas hydrogen-doped mixing, the diameter difference between the gas collecting pipe and the driving connection gas conveying pipe is utilized to increase the airflow flowing impact force of gas entering the driving connection gas conveying pipe from the gas collecting pipe, and the gas mixing mechanism is arranged to drive the mixing blades to mix natural gas and hydrogen by utilizing the airflow flowing impact force, so that the mixing and filling degree of the natural gas and the hydrogen is improved; meanwhile, through the arrangement of the thread structure and the sealing ring, the convenient degree and the sealing degree of connection between the gas pipe and the gas inlet pipe and between the gas pipe and the gas outlet pipe are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of a regulating structure for natural gas-hydrogen mixture according to the present invention;

FIG. 2 is a schematic view of a connection structure of a driving shaft, a transmission shaft and a driving belt of the adjusting structure for natural gas-hydrogen mixture according to the present invention;

fig. 3 is an exploded view of an air inlet pipe or an air outlet pipe, a gas pipe and a sealing connecting piece of the adjusting structure for the natural gas and hydrogen mixed gas provided by the utility model.

The gas mixing device comprises a gas collecting pipe 1, a gas collecting pipe 2, a driving connection gas conveying pipe 3, a mixing box 4, a gas mixing mechanism 5, a gas conveying pipe 6, a sealing connecting piece 7, a hydrogen gas conveying pipe 8, a natural gas conveying pipe 9, a mixed gas conveying pipe 10, a gas inlet pipe 11, a flow control valve 12, a gas outlet pipe 13, a driving shaft 14, a driving impeller 15, a driving shaft 16, a driving conical wheel 17, a mixing shaft 18, a driven conical wheel 19, a belt disc 20, a driving belt 21, a convex inner column pipe 22 and a sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 3, the technical scheme adopted by the utility model is as follows: the utility model provides a natural gas hydrogen-mixing is gas with adjusting structure, including gas collecting pipe 1, the gas-supply pipe 2 is connected in the drive, mixing box 3, mix gas mechanism 4, gas-supply pipe 5 and sealing connecting piece 6, gas-supply pipe 5 includes hydrogen gas-supply pipe 7, natural gas-supply pipe 8 and gas mixture gas-supply pipe 9, 1 one side of gas-supply pipe is equipped with intake pipe 10, be equipped with flow control valve 11 in the intake pipe 10, hydrogen gas-supply pipe 7 and natural gas-supply pipe 8 link to each other with intake pipe 10 through sealing connecting piece 6 respectively, 1 opposite side of gas-supply pipe is located to drive connection gas-

supply pipe

2, 3 lower parts of mixing box link to each other with drive connection gas-supply pipe 2, mix in gas mechanism 4 locates drive connection gas-supply pipe 2 and

mixing box

3, 3 one side upper portion of mixing box are equipped with outlet duct 12, gas mixture gas-supply pipe 9 links to each other with outlet duct 12 through sealing connecting piece 6.

Wherein, gas mixing mechanism 4 includes drive shaft 13, drive impeller 14, transmission shaft 15, initiative cone pulley 16, mixing shaft 17 and driven cone pulley 18, drive shaft 13 rotates and locates in the drive connection gas-supply pipe 2, drive impeller 14 locates on drive shaft 13, drive impeller 14 is located gas collecting pipe 1 and drive connection gas-supply pipe 2 connection mouth department, transmission shaft 15 rotates and locates on 3 lateral walls of mixing box, all be equipped with belt pulley 19 on drive shaft 13 and the transmission shaft 15, the cover is equipped with drive belt 20 on the belt pulley 19 of drive shaft 13 and transmission shaft 15, initiative toper is located on transmission shaft 15, mixing shaft 17 rotates and locates on 3 roof of mixing box, driven cone pulley 18 locates on mixing shaft 17, driven cone pulley 18 and the meshing of initiative cone pulley 16, be equipped with mixed blade on the mixing shaft 17. The diameter of the gas collecting pipe 1 is larger than that of the driving connecting gas conveying pipe 2, so that the driving force of the airflow flowing to the driving impeller 14 is increased.

The gas pipe 5, all be equipped with the external screw thread on intake pipe 10 and the outlet duct 12, all be equipped with protruding inner column pipe 21 on intake pipe 10 and the outlet duct 12, the protruding inner column pipe 21 nestification of intake pipe 10 and outlet duct 12 is located in the gas pipe 5, be equipped with the internal thread on the sealing connection spare 6, sealing connection spare 6 is located on intake pipe 10 and the gas-supply pipe 5 through threaded connection, sealing connection spare 6 is located on outlet duct 12 and the gas-supply pipe 5 through threaded connection. The raised inner column tubes 21 of the air inlet tube 10 and the air outlet tube 12 are both provided with sealing grooves, and sealing rings 22 are embedded in the sealing grooves.

When the gas pipeline is used in a specific mode, in an initial state, the sealing connecting piece 6 is arranged on the gas outlet pipe 12 and the gas inlet pipe 10 through threaded connection, firstly, the gas inlet pipe 5 is clamped in the convex inner column pipe 21, then the sealing connecting piece 6 is rotated to the connecting position of the gas outlet pipe 12 or the gas inlet pipe 10 and the gas inlet pipe 5, the connecting position of the gas outlet pipe 12 or the gas inlet pipe 10 and the gas inlet pipe 5 is connected and sealed through the sealing connecting piece 6, the flow control valve 11 is opened, natural gas and hydrogen enter the gas collecting pipe 1, and under the action of the diameter difference of the gas collecting pipe 1 and the driving connecting gas inlet pipe 2, the airflow flowing impact force of the gas entering the driving connecting gas inlet pipe 2 is increased, the impeller 14 is driven by airflow impact, so as to drive the driving shaft 13 to rotate, the driving shaft 15 is driven to rotate under the action of the driving belt 20, the driving shaft 15 drives the driving cone-shaped wheel 16 to rotate, the driving cone-shaped wheel 16 drives the driven cone-shaped wheel 18 to rotate, the driven cone-shaped wheel 18 drives the mixing shaft 17 to rotate, the mixing shaft 17 drives the mixing blades to rotate, so that the hydrogen and the natural gas are mixed, and the mixed gas is output through the gas outlet pipe 12 and the mixed gas output pipe.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A natural gas is mixed hydrogen gas with adjusting structure which characterized in that: including discharge, drive connection gas-supply pipe, mixing box, thoughtlessly gas mechanism, gas-supply pipe and sealing connecting piece, the gas-supply pipe includes hydrogen gas-supply pipe, natural gas-supply pipe and gas-supply pipe, discharge one side is equipped with the intake pipe, be equipped with flow control valve in the intake pipe, hydrogen gas-supply pipe and natural gas-supply pipe link to each other with the intake pipe through sealing connecting piece respectively, the discharge opposite side is located to the drive connection gas-supply pipe, the mixing box lower part links to each other with the drive connection gas-supply pipe, thoughtlessly gas mechanism locates in drive connection gas-supply pipe and the mixing box, mixing box one side upper portion is equipped with the outlet duct, the gas-supply pipe of mixture passes through sealing connecting piece and links to each other with the outlet duct.

2. The structure of claim 1, wherein: mix gas mechanism and include drive shaft, drive impeller, transmission shaft, initiative cone pulley, mixing shaft and driven cone pulley, the drive shaft rotates and locates in the drive connection gas transmission pipe, drive impeller locates in the drive shaft, drive impeller is located the discharge and drive connection gas transmission pipe connection mouth department, the transmission shaft rotates and locates on the mixing box lateral wall, all be equipped with the belt pulley on drive shaft and the transmission shaft, the cover is equipped with drive belt on the belt pulley of drive shaft and transmission shaft, the transmission shaft is located to the initiative toper, the mixing shaft rotates and locates on the mixing box roof, on the mixing shaft is located to driven cone pulley, driven cone pulley and the meshing of initiative cone pulley, be equipped with mixing vane on the mixing shaft.

3. The structure of claim 2, wherein: the diameter of the gas collecting pipe is larger than that of the driving connection gas conveying pipe.

4. The structure of claim 1, wherein: the improved air delivery pipe is characterized in that external threads are arranged on the air delivery pipe, the air inlet pipe and the air outlet pipe, protruding inner column pipes are arranged on the air inlet pipe and the air outlet pipe, the protruding inner column pipes of the air inlet pipe and the air outlet pipe are embedded and sleeved in the air delivery pipe, internal threads are arranged on the sealing connecting piece, the sealing connecting piece is arranged on the air inlet pipe and the air delivery pipe through threaded connection, and the sealing connecting piece is arranged on the air outlet pipe and the air delivery pipe through threaded connection.

5. The structure of claim 4, wherein: the air inlet pipe and the air outlet pipe are provided with sealing grooves on the raised inner column pipes, and sealing rings are embedded in the sealing grooves.