CN217634531U

CN217634531U - Silencing rectifying gas collecting pipe

Info

Publication number: CN217634531U
Application number: CN202221440071.XU
Authority: CN
Inventors: 陶金龙; 周杰; 王亚军
Original assignee: Changshu Feiao Pressure Vessel Manufacture Co ltd
Current assignee: Changshu Feiao Pressure Vessel Manufacture Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-21
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to a noise elimination rectification gas collecting pipe, including the gas collecting pipe shaft, be provided with a plurality of air inlet and gas outlet on the gas collecting pipe shaft, the air inlet designs into loudspeaker form, still be provided with porous amortization filter screen in the air inlet. The utility model relates to a horn-shaped air inlet to add porous amortization filter screen in the air inlet, reduce the impact of air current to the discharge inner wall, prolong the discharge life-span, noise abatement.

Description

Silencing rectification gas collecting pipe

Technical Field

The utility model relates to a pipeline under pressure technical field especially relates to a noise elimination rectification discharge.

Background

Gas collecting pipes, also called headers, are often used in gas transmission stations and gas distribution stations in natural gas cities.

The main functions of the gas collecting pipe are as follows: the gas storage device is used for storing gas in advance and preventing the pressure drop of a gas using point at the tail end from being too large; the functions of buffering and balancing the pressure and the flow of each incoming gas are achieved, and the natural gas is conveyed to the lower-end equipment after the parameters in the header are stable; when the number of branch flows in the pipeline is large, the branch pipeline is stabilized, and the pressure and the flow in each pipeline are balanced.

The existing gas collecting pipe comprises a pipe body, and a plurality of gas inlets and gas outlets which are arranged on the pipe body. Original air inlet, gas outlet are straight cartridge type structure, and the striking that the air current got into the production is great, and the impact that causes the discharge duct inner wall is great, and can produce great noise.

Thus, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a noise elimination rectification discharge for solve above-mentioned problem.

The utility model discloses a technical scheme be: provided is a muffling rectifying gas header, comprising: the gas collecting pipe comprises a gas collecting pipe body, wherein a plurality of gas inlets and gas outlets are formed in the gas collecting pipe body, the gas inlets are designed into a horn shape so as to reduce the impact of gas flow entering the gas collecting pipe, a porous silencing filter screen is further arranged in each gas inlet, and high-speed jet flow noise is eliminated by utilizing the porous silencing principle.

Furthermore, the air inlet consists of a pipe body extension section, a reducing joint and a flange joint.

Furthermore, the extension section of the pipe body is formed by drawing the pipe body of the gas collecting pipe.

Furthermore, the diameter difference of the two ends of the reducing joint is not less than DN100.

Furthermore, the porous silencing filter screen is made of stainless steel.

Furthermore, a flange clamping plate is arranged at the upper end of the porous silencing filter screen, and when the gas collecting pipe is connected with other pipelines, the two flange joints clamp the flange clamping plate to fix the porous silencing filter screen.

Further, the lower extreme of porous amortization filter screen still is provided with radome fairing and bottom baffle for change the velocity profile after the circulation of gas passes through, avoid vortex and torrent to produce, thereby the noise reduction.

Further, still be provided with flat strip support piece in the air inlet, work as when the tip that reduces the connector > DN200, need use flat strip support piece to support porous amortization filter screen, guarantee that the filter screen is stable.

The utility model relates to a noise elimination rectification discharge's beneficial effect is:

1. the horn-shaped air inlet is designed to reduce the impact of the air flow after entering the air inlet pipe, reduce the impact of the air flow on the inner wall of the air collecting pipe, reduce noise and prolong the service life of the air collecting pipe;

2. and a porous silencing filter screen is additionally arranged in the air inlet, and the high-speed jet flow noise is eliminated by utilizing the porous silencing principle, so that the noise pollution is further reduced.

Drawings

Fig. 1 is a schematic view of a muffling rectifying gas collecting tube according to a first embodiment of the present invention;

fig. 2 is a partial enlarged view of a muffling and rectifying gas collecting tube according to a first embodiment of the present invention;

the parts in the drawings are numbered as follows: 1. the gas collecting pipe comprises a gas collecting pipe body, 2, a gas inlet, 3, a gas outlet, 4, a porous silencing filter screen, 21, a pipe body extension section, 22, a reducing joint, 23, a flange joint, 41, a flange clamping plate, 42, a fairing, 43 and a bottom baffle.

Detailed Description

The following description of the preferred embodiments of the present invention will be provided with reference to the accompanying drawings, so that the advantages and features of the present invention can be easily understood by those skilled in the art, and the scope of the present invention can be clearly and clearly defined.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "horizontal", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description of the present invention, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 2, a first embodiment of the present invention provides a muffling and rectifying gas collecting tube, which includes a gas collecting tube body 1, two gas inlets 2 are disposed above the gas collecting tube body 1, and three gas outlets 3 are disposed below the gas collecting tube body;

the air inlet 2 is designed into a horn shape and consists of a pipe body extension section 21, a reducing joint 22 and a flange joint 23, wherein the pipe body extension section 21 is directly formed by drawing on the gas collecting pipe body 1, the small end of the reducing joint 22 is DN300, the large end is DN400, the small end is connected with the flange joint 23, the large end is connected with the pipe body extension section 21, the airflow enters the air inlet 2 and then is dispersed along the shape of the airflow, and the impact of the airflow on the inner wall of the gas collecting pipe and the noise generated by the airflow are reduced.

Specifically, the reducing joint is selected according to the actual flow velocity of the airflow, and the larger the flow velocity is, the larger the diameter difference is needed to reduce and stabilize the flow velocity, for example, the diameter difference between the two ends is DN150 and DN200.

Specifically, the reducing joint may be a bell-shaped reducing joint or a conical reducing joint.

Still be provided with porous amortization filter screen 4 of stainless steel in the air inlet 2, be provided with flange grip block 41 in the upper end of porous amortization filter screen 4, when the discharge with other tube coupling, flange joint between them is cliied the flange grip block and is fixed porous amortization filter screen, the lower extreme of porous amortization filter screen 4 is provided with fairing 42, change the velocity distribution after the air current passes through the noise reduction device, avoid vortex and torrent to produce, still be provided with bottom baffle 43 in fairing 42's below, can block the air current true spray, come the noise reduction through these designs.

Specifically, a flat bar supporting piece (not shown) is further arranged in the air inlet 2, and when the small end of the reducing joint is greater than DN200, the flat bar supporting piece is required to support the porous silencing filter screen, so that the stability of the filter screen is ensured.

The porous silencing filter screen 4 is provided with uniformly distributed holes, the pore diameter of each hole is very small, airflow passes through the holes and diffuses, audible components in a generated noise spectrum can be reduced, and high-speed jet noise is eliminated by utilizing the porous silencing principle.

Specifically, the holes on the porous noise reduction filter screen can be distributed in a triangular shape or a square shape.

1. the horn-shaped air inlet is designed to reduce the impact of airflow after the airflow enters the air inlet pipe, reduce the impact of the airflow on the inner wall of the gas collecting pipe, reduce noise and prolong the service life of the gas collecting pipe;

2. a porous silencing filter screen is additionally arranged in the air inlet, and the high-speed jet flow noise is eliminated by utilizing the porous silencing principle, so that the noise pollution is further reduced;

3. the lower end of the porous silencing filter screen is provided with a fairing and a bottom baffle plate to further adjust and block airflow, and the air inlet and the filter screen are matched to reduce noise.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A noise elimination rectification gas collecting pipe is characterized by comprising: the gas collecting pipe comprises a gas collecting pipe body, wherein a plurality of gas inlets and gas outlets are formed in the gas collecting pipe body, the gas inlets are designed to be horn-shaped, and porous silencing filter screens are further arranged in the gas inlets.

2. The muffling and rectifying gas collecting pipe according to claim 1, wherein the gas inlet is composed of a pipe body extension section, a reducing joint and a flange joint.

3. The muffling rectifying gas header according to claim 2, wherein the tube body extension is drawn from the gas header tube body.

4. The muffling rectifying gas collecting pipe according to claim 2, wherein the diameter difference between two ends of the reducing joint is not less than DN100.

5. The muffling, rectifying and gas-collecting pipe according to claim 1, wherein the porous muffling filter screen is made of stainless steel.

6. The muffling and rectifying gas collecting pipe according to claim 1, wherein a flange holding plate is provided at an upper end of the porous muffling screen.

7. The muffling and rectifying gas collecting pipe according to claim 1, wherein a rectifying cover and a bottom baffle are further arranged at the lower end of the porous muffling filter screen.

8. The muffling rectifying gas header according to claim 1, wherein a flat bar support is further disposed in the inlet.