Air inlet flange

Abstract

The utility model relates to the technical field of pipeline conveying, and particularly discloses an air inlet flange which comprises a flange plate body and an air inlet channel, mounting holes are formed in the flange plate body, the air inlet channel is located on the inner side of the flange plate body, an air inlet groove is formed in the air inlet channel, and one end of the air inlet groove extends to the outer side of the flange plate body; an air inlet hole is formed in the air inlet channel, communicates with the air inlet groove and is located in the inner side of the flange plate body, and one side of the air inlet hole communicates with the outside of the air inlet channel. The gas pipeline has the effect of improving the defects of high production cost and gas leakage risk of the gas pipeline.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipeline transportation, in particular to an air inlet flange. BACKGROUND

[0002] In industrial production, a flange is an important connecting piece, which realizes the stable connection between shafts, pipelines, devices and the like by means of fasteners such as bolts, and has good sealing performance.

[0003] The flange is widely used in various pipeline systems, and is used for connecting pipelines with the same or different diameters, or connecting pipelines with devices such as valves, pumps and instruments, thereby simplifying the installation and disassembly steps and improving the reliability of the pipeline system.

[0004] When a pipeline is used to transport gas, a special air inlet is usually formed on the pipeline, and a separate air inlet device is connected. This not only increases the production cost, but also reduces the work efficiency and has the risk of gas leakage. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the defects of high production cost and gas leakage risk of the gas conveying pipeline, the application provides an air inlet flange.

[0006] The application provides an air inlet flange, which adopts the following technical scheme:

[0007] The air inlet flange comprises a flange body, the flange body is provided with a mounting hole, further comprises an air inlet channel, the air inlet channel is located on the inner side of the flange body, an air inlet groove is formed in the air inlet channel, one end of the air inlet groove extends to the outer side of the flange body, an air inlet hole is formed in the air inlet channel, the air inlet hole is in communication with the air inlet groove, the air inlet hole is located on the inner side of the flange body, and the air inlet hole is in communication with the outer side of the air inlet channel.

[0008] By adopting the above technical scheme, when the pipeline needs to transport gas, the air inlet device is connected with the air inlet channel, the gas enters the pipeline through the air inlet groove and the air inlet hole, thereby realizing the air inlet of the pipeline, when the gas transportation is completed, the air inlet groove is closed, the flange simultaneously plays the role of connection and air inlet, so that two pipelines do not need to be additionally provided with an air inlet when being connected, the structure of the pipeline system is simplified, the installation efficiency is improved, the maintenance cost is reduced, the safety and reliability of the pipeline transportation system are enhanced, and the defects of high production cost and gas leakage risk of the gas conveying pipeline are improved.

[0009] Optionally, the outer side of the flange body is provided with an air inlet pipe, and the inside of the air inlet pipe is in communication with the air inlet groove.

[0010] By adopting the technical scheme, the air inlet pipe is arranged outside the flange body, the air inlet equipment is connected with the air inlet pipe, and then the gas is input.

[0011] Optionally, the air inlet pipe is a circular pipe.

[0012] By adopting the technical scheme, the air inlet pipe is arranged outside the flange body, the air inlet equipment is connected with the air inlet pipe, and then the gas is input.

[0013] Optionally, the axis of the air inlet channel intersects with the axis of the flange body at the center of the flange body.

[0014] Optionally, the air inlet hole is located at the center of the flange body.

[0015] By adopting the technical scheme, the air inlet hole is arranged at the center of the flange body, the gas is input into the center of the pipeline, and the reliability of the pipeline transportation system is improved.

[0016] Optionally, the thickness of the air inlet channel is equal to the thickness of the flange body.

[0017] Optionally, the outer shape of the air inlet channel is a rectangle.

[0018] By adopting the technical scheme, the shape and thickness of the air inlet channel are arranged to be suitable for the flange body, and the possibility of negative influence of the air inlet channel on the pipeline connection is reduced.

[0019] Optionally, the air inlet channel is provided with a connecting block on both sides.

[0020] Optionally, the side of the connecting block away from the air inlet channel is a circular arc.

[0021] By adopting the technical scheme, the connecting block is arranged, so that it is more convenient to open the air inlet hole on the air inlet channel when the air inlet flange is produced.

[0022] Optionally, a plurality of mounting holes are arranged around the flange body.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. When the pipeline needs to transport gas, the air inlet equipment is connected with the air inlet channel, the gas enters the pipeline through the air inlet groove and the air inlet hole, and then the air inlet of the pipeline is realized, and when the gas transportation is completed, the air inlet groove is closed, the flange plays the role of connection and air inlet, so that two pipelines do not need to be additionally provided with an air inlet when connected, the structure of the pipeline system is simplified, the installation efficiency is improved, the maintenance cost is reduced, the safety and reliability of the pipeline transportation system are enhanced, and the defects of high production cost of the gas pipeline and the risk of gas leakage are improved.

[0025] 2. The intake flange is provided with an intake pipe outside the flange body, which is convenient for connecting the intake equipment with the intake pipe to input gas;

[0026] 3. The intake hole is arranged at the center of the flange body, which is convenient for inputting gas into the center of the pipeline, and improves the reliability of the pipeline transportation system. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of an intake flange of an embodiment of the present application.

[0028] Figure 2 is a top view of an intake flange of an embodiment of the present application.

[0029] Figure 3 is a sectional view along the A-A direction of Figure 2 the middle.

[0030] Reference signs: 1, flange body; 11, mounting hole; 2, intake pipe; 3, intake passage; 31, intake groove; 32, intake hole; 4, connecting block. DETAILED DESCRIPTION

[0031] The present application will be further described below in combination with the accompanying drawings. Figures 1-3 The present application will be further described below in combination with the accompanying drawings.

[0032] EMBODIMENTS

[0033] An embodiment of the present application discloses an intake flange.

[0034] Referring to Figure 1 , an intake flange includes a flange body 1, an intake pipe 2 and an intake passage 3, the flange body 1 is a circular ring, a plurality of mounting holes 11 are arranged on the flange body 1, the plurality of mounting holes 11 are arranged uniformly around the circumference of the flange body 1 along the axis of the flange body 1, the mounting hole 11 penetrates the flange body 1 along the axis direction of the flange body 1, and in the embodiment, twelve mounting holes 11 are arranged.

[0035] Referring to Figure 2 and Figure 3 , the intake pipe 2 is a circular pipe, the intake pipe 2 is located outside the flange body 1, the axis of the intake pipe 2 intersects with the axis of the flange body 1 at the center of the flange body 1, one end of the intake pipe 2 is attached to the outer wall of the flange body 1, and the intake pipe 2 is integrally formed with the flange body 1.

[0036] Referring to Figure 1 and Figure 3, the air inlet channel 3 is coaxially arranged with the air inlet pipe 2, one end of the air inlet channel 3 is attached to one end of the air inlet pipe 2 close to the flange body 1, and the air inlet channel 3 is integrally formed with the air inlet pipe 2. The other end of the air inlet channel 3 penetrates the flange body 1, passes through the center of the flange body 1, and is attached to the inner wall of the flange body 1, and the air inlet channel 3 is integrally formed with the flange body 1. The air inlet channel 3 has a rectangular cross section, the air inlet channel 3 has a circular inner cross section, and the thickness of the air inlet channel 3 is equal to the thickness of the flange body 1.

[0037] Referring to Figure 3 , the air inlet channel 3 is coaxially arranged with the air inlet pipe 2, one end of the air inlet channel 3 is attached to one end of the air inlet pipe 2 close to the flange body 1, and the air inlet channel 3 is integrally formed with the air inlet pipe 2. The other end of the air inlet channel 3 penetrates the flange body 1, passes through the center of the flange body 1, and is attached to the inner wall of the flange body 1, and the air inlet channel 3 is integrally formed with the flange body 1. The air inlet channel 3 has a rectangular cross section, the air inlet channel 3 has a circular inner cross section, and the thickness of the air inlet channel 3 is equal to the thickness of the flange body 1.

[0038] Referring to Figure 3 , the air inlet channel 3 is coaxially arranged with the air inlet pipe 2, one end of the air inlet channel 3 is attached to one end of the air inlet pipe 2 close to the flange body 1, and the air inlet channel 3 is integrally formed with the air inlet pipe 2. The other end of the air inlet channel 3 penetrates the flange body 1, passes through the center of the flange body 1, and is attached to the inner wall of the flange body 1, and the air inlet channel 3 is integrally formed with the flange body 1. The air inlet channel 3 has a rectangular cross section, the air inlet channel 3 has a circular inner cross section, and the thickness of the air inlet channel 3 is equal to the thickness of the flange body 1.

[0039] The implementation principle of the air inlet flange in the embodiment of the application is that two pipes can be connected through the mounting hole 11 on the flange body 1. When the pipes need to transport gas, the air inlet equipment is connected with the air inlet pipe 2, the gas enters the air inlet channel 3 through the air inlet pipe 2, enters the air inlet hole 32 through the air inlet groove 31, and then enters the inside of the pipe from the air inlet hole 32, so that the air inlet of the pipe is realized. When the gas transportation is completed, the air inlet equipment is closed, and the air inlet pipe 2 is closed.

[0040] The air inlet flange in the embodiment can realize the functions of connection and air inlet at the same time, so that two pipes do not need to be additionally provided with an air inlet when being connected, the structure of the pipe system is simplified, the installation efficiency is improved, the maintenance cost is reduced, the safety and reliability of the pipe transportation system are enhanced, and the defects of high production cost of the gas transportation pipe and the risk of gas leakage are improved.

[0041] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. An air inlet flange comprising a flange disc body (1) having a mounting hole (11) formed therein, characterized in that: Also include the air inlet channel (3), the air inlet channel (3) is located in the inner side of the flange body (1), the air inlet channel (3) is provided with air inlet groove (31), one end of the air inlet groove (31) extends to the outer side of the flange body (1), the air inlet channel (3) is provided with air inlet hole (32), the air inlet hole (32) is communicated with the air inlet groove (31), the air inlet hole (32) is located in the inner side of the flange body (1), one side of the air inlet hole (32) is communicated with the outside of the air inlet channel (3).

2. An air inlet flange according to claim 1, characterised in that: The outer side of the flange body (1) is provided with air inlet pipe (2), the inside of the air inlet pipe (2) is communicated with the air inlet groove (31).

3. An air inlet flange according to claim 2, wherein: The air inlet pipe (2) is a circular tube.

4. An air inlet flange according to claim 1, wherein: The axis of the air inlet channel (3) intersects with the axis of the flange body (1) at the center of the flange body (1).

5. An air inlet flange according to claim 4, wherein: The air inlet hole (32) is located at the center position of the flange body.

6. An air inlet flange according to claim 1, wherein: The thickness of the air inlet channel (3) is equal to the thickness of the flange body (1).

7. An air inlet flange according to claim 6, wherein: The outer shape section of the air inlet channel (3) is rectangular.

8. An air inlet flange according to claim 1, characterized in that: Both sides of the air inlet channel (3) are provided with connecting block (4).

9. An air inlet flange according to claim 8, wherein: The side of the connecting block (4) away from the air inlet channel (3) is arc-shaped.

10. An air inlet flange according to claim 1, characterized in that: The mounting hole (11) is provided with a plurality of mounting holes (11), a plurality of mounting holes (11) are uniformly arranged around the flange body (1).

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