CN212867837U - Pipeline buffer device - Google Patents

Abstract

The application provides a pipeline buffer, includes: a buffer; a first connecting flange is arranged at the inlet and/or the outlet of the buffer; a hole plate is arranged at one end of the first connecting flange, which is relatively far away from the buffer; the orifice plate centre is equipped with the buffer hole just the buffer hole diameter is less than first flange's hole diameter. The present application further provides a pipe buffering device, including: a gas tank for supplying gas to the compressor; a second connecting flange is arranged at an outlet of the gas storage tank; a pore plate is arranged at one end, relatively far away from the buffer, of the second connecting flange; the orifice plate centre is equipped with the buffer hole just the buffer hole diameter is less than second flange's hole diameter.

Description

Pipeline buffer device

Technical Field

The present disclosure specifically discloses a pipe buffering device.

Background

With the development of petrochemical industry in China, the medium operation pressure of a petrochemical device is higher and higher, and the reciprocating piston type compressor is widely used for conveying gas or improving the gas pressure. In view of the fact that the reciprocating piston compressor has the advantage that the molecular weight can reach higher outlet pressure no matter the flow rate of the medium, the technology and the industry of the reciprocating piston compressor are continuously developed along with the continuous expansion of the scale of petrochemical equipment in recent years.

At present, the scale of a reciprocating piston compressor is always developed to be large, multistage and high-pressure, and as the scale of the reciprocating piston compressor is increased, pipeline vibration caused by pressure pulsation often occurs in a pipeline system connected with the reciprocating piston compressor, so that certain negative effects are caused on the safe operation of a pipeline, and improvement is urgently needed.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application is directed to a pipe damping device capable of effectively damping vibration of a pipe compared to the prior art.

In a first aspect, a pipe buffering device comprises: a buffer; a first connecting flange is arranged at the inlet and/or the outlet of the buffer; a hole plate is arranged at one end of the first connecting flange, which is relatively far away from the buffer; the orifice plate centre is equipped with the buffer hole just the buffer hole diameter is less than first flange's hole diameter.

In a second aspect, a pipe damper includes: a gas tank for supplying gas to the compressor; a second connecting flange is arranged at an outlet of the gas storage tank; a pore plate is arranged at one end, relatively far away from the buffer, of the second connecting flange; the orifice plate centre is equipped with the buffer hole just the buffer hole diameter is less than second flange's hole diameter.

According to the technical scheme provided by the embodiment of the application, the ratio of the diameter of the buffer hole to the diameter of the inner hole of the first connecting flange is as follows: 0.43 to 0.5; the proportion of buffer hole diameter and second flange inner hole diameter is: 0.43 to 0.5.

According to the technical scheme provided by the embodiment of the application, the hole edge of the buffer hole is a sharp corner with an included angle of 90 degrees.

According to the technical scheme provided by the embodiment of the application, the thickness of the pore plate is 3-5 mm.

According to the technical solution provided by the embodiment of the present application, the buffer includes but is not limited to: a stage exhaust buffer or a final stage exhaust buffer.

In summary, the present application discloses two specific structural designs of a pipe buffering device.

One is, when buffering at interstage pipeline vibration or piston compressor last stage exhaust duct vibration to piston compressor, the design of orifice plate is add in the first flange department of stage exhaust buffer or last stage exhaust buffer among this technical scheme, and the orifice plate is the design buffer hole in the middle of, and after gas via the buffer hole again behind first flange, gas becomes the aperture for a short time via the aperture for a long time, can alleviate by pressure pulsation, the vibration that the air column resonance caused in the pipeline.

Secondly, when buffering to piston compressor total intake duct vibration, add the design of orifice plate in this technical scheme in the second flange department that is used for supplying with the gas holder of gas to the compressor, the orifice plate is middle to be designed the buffer hole, and after gas via second flange back via the buffer hole again, gas becomes the aperture of a small circle via the large aperture, can alleviate by pressure pulsation, the vibration that the air column resonance in the pipeline caused.

Further carry out concrete design to size, the structure of cushion opening among this technical scheme, if: the optimal proportional value of the diameter of the buffer hole, the diameter of the inner hole of the first connecting flange and the diameter of the inner hole of the second connecting flange is obtained; for another example: the edge of the buffer hole is a sharp angle with an included angle of 90 degrees. In addition, further carry out concrete design to the pore plate size among this technical scheme, promptly: the thickness of the pore plate is 3-5 mm. With this optimized thickness dimension, the cushioning effect of the orifice plate can be optimized. When the size of the hole plate is too small, the buffering effect cannot be expected; when the thickness of the orifice plate is too large, the gas resistance at the actual installation position is large and the noise is large.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a first embodiment of a pipe buffering device.

Fig. 2 is a schematic structural diagram of a second embodiment of the pipe buffering device.

Fig. 3 is a schematic structural view of a third embodiment of the pipe buffering device.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1 for a schematic structural diagram of a first embodiment of a pipeline buffering device.

When the piston compressor is used for buffering the vibration of an interstage pipeline, the pore plate needs to be arranged at a first connecting flange of an outlet flange of a stage exhaust buffer.

Specifically, a pipe damper device includes: a buffer 10; a first connecting flange 11 is arranged at the inlet and/or the outlet of the buffer 10; a pore plate 30 is arranged at one end, relatively far away from the buffer 10, of the first connecting flange 11; the orifice plate 30 is provided with a buffer hole 31 in the center, and the diameter of the buffer hole 31 is smaller than the diameter of the inner hole of the first connecting flange 11.

Alternatively, the first connecting flange may be provided at the inlet or outlet or at both the outlet and inlet of the damper 10. An orifice plate 30 is arranged on one end of the first connecting flange, which is relatively far away from the buffer 10. Specifically, the orifice plate 30 has an annular structure, and a buffer hole is formed in the center thereof.

Considering the well board is right in the design buffer hole, after gas via first flange again via the buffer hole, gas becomes the aperture for a short time via big aperture, can alleviate by pressure pulsation, the interior air column resonance vibration of pipeline cause.

Please refer to fig. 2, which is a schematic structural diagram of a second embodiment of a pipe buffering device.

When the vibration of the last-stage exhaust pipeline of the piston compressor is buffered, the orifice plate needs to be arranged at a first connecting flange of the last-stage exhaust buffer of an outlet flange of the last-stage exhaust buffer, and the orifice plate is designed to be additionally arranged.

Specifically, a pipe damper device includes: a buffer 10; a first connecting flange 11 is arranged at the inlet and/or the outlet of the buffer 10; a pore plate 30 is arranged at one end, relatively far away from the buffer 10, of the first connecting flange 11; the orifice plate 30 is provided with a buffer hole 31 in the center, and the diameter of the buffer hole 31 is smaller than the diameter of the inner hole of the first connecting flange 11.

Alternatively, the first connecting flange may be provided at the inlet or outlet or at both the outlet and inlet of the damper 10. An orifice plate 30 is arranged on one end of the first connecting flange, which is relatively far away from the buffer 10. Specifically, the orifice plate 30 has an annular structure, and a buffer hole is formed in the center thereof.

Considering the well board is right in the design buffer hole, after gas via first flange again via the buffer hole, gas becomes the aperture for a short time via big aperture, can alleviate by pressure pulsation, the interior air column resonance vibration of pipeline cause.

In the two embodiments, the ratio of the diameter of the buffer hole 31 to the diameter of the inner hole of the first connecting flange 11 is: 0.43 to 0.5. When the diameter of the buffer hole and the diameter of the inner hole of the first connecting flange are in the size proportion, the vibration caused by pressure pulsation and air column resonance in the pipeline can be eliminated, and the gas conveying cannot be hindered.

To achieve the buffering purpose, the orifice plate provided in the two embodiments has the following structural dimensions:

d/D＝0.5～0.43

δ＝3～5mm

in the formula, d: diameter of buffer hole mm

D: diameter of inner hole of second connecting flange in mm

δ: thickness of the orifice plate, mm

Please refer to fig. 3 for a third embodiment of a pipeline buffering device.

When buffering to the vibration of piston compressor total inlet duct, add the design of orifice plate in the second flange department that is used for supplying with the gas holder of gaseous compressor among this technical scheme.

Specifically, a pipe damper device includes: a gas tank 20 for supplying gas to the compressor; a second connecting flange 21 is arranged at the outlet of the gas storage tank 20; a pore plate 30 is arranged at one end of the second connecting flange 21, which is relatively far away from the gas storage tank 20; the orifice plate 30 is provided with a buffer hole 31 in the center, and the diameter of the buffer hole 31 is smaller than the diameter of the inner hole of the first connecting flange 11.

Specifically, the orifice plate 30 has an annular structure, and a buffer hole is formed in the center thereof.

Considering the well board is right in the design buffer hole, after gas via second flange again via the buffer hole, gas becomes the aperture for a short time via big aperture, can alleviate by pressure pulsation, the interior air column resonance vibration of pipeline cause.

In any of the above embodiments, the ratio of the diameter of the buffer hole 31 to the diameter of the inner hole of the second connecting flange 21 is: 0.43 to 0.5. When the diameter of the buffer hole and the diameter of the inner hole of the second connecting flange are in the size proportion, the vibration caused by pressure pulsation and air column resonance in the pipeline can be eliminated, and the gas conveying cannot be hindered.

To achieve the buffering purpose, the orifice plate provided in the above embodiment has the following structural dimensions:

d/D＝0.5～0.43

δ＝3～5mm

in the formula, d: diameter of buffer hole mm

D: diameter of inner hole of second connecting flange in mm

δ: thickness of the orifice plate, mm

In any of the above embodiments, the edge of the buffer hole 31 is a sharp corner with an included angle of 90 degrees. When gas flows through the first connecting flange to the pore plate or flows through the second connecting flange to the pore plate, the sharp angle design can enable the flowing path of the gas to be rapidly changed in diameter, so that vibration caused by pressure pulsation and gas column resonance in the pipeline can be relieved. The hole edge of the buffer hole 31 cannot be chamfered.

In any of the above embodiments, the thickness of the orifice plate 30 is 3-5 mm. With this optimized thickness dimension, the cushioning effect of the orifice plate can be optimized. When the size of the hole plate is too small, the buffering effect cannot be expected; when the thickness of the orifice plate is too large, the gas resistance at the actual installation position is large and the noise is large.

Optionally, the orifice plate is made of the same material as the pipe flange.

It is further noted that the orifice plate is installed at the first connecting flange except the inlet and/or the outlet of the buffer container; or the pore plate is not allowed to be additionally arranged at other positions in the pipeline outside the second connecting flange at the outlet of the gas storage tank, otherwise, the vibration cannot be eliminated, and the gas resistance and the noise are large.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (9)

1. A pipe buffering device, characterized in that:

the method comprises the following steps: a buffer (10); a first connecting flange (11) is arranged at the inlet and/or the outlet of the buffer (10);

a pore plate (30) is arranged at one end, relatively far away from the buffer (10), of the first connecting flange (11);

the orifice plate (30) centre is equipped with buffer hole (31) just buffer hole (31) diameter is less than the hole diameter of first flange (11).

2. A pipe buffering device as claimed in claim 1, wherein: the buffer (10) includes but is not limited to: a stage exhaust buffer or a final stage exhaust buffer.

3. A pipe buffering device as claimed in claim 1 or 2, wherein:

the proportion of the diameter of the buffer hole (31) to the diameter of the inner hole of the first connecting flange (11) is as follows: 0.43 to 0.5.

4. A pipe buffering device as claimed in claim 1 or 2, wherein:

the edge of the buffer hole (31) is a sharp angle with an included angle of 90 degrees.

5. A pipe buffering device as claimed in claim 1 or 2, wherein:

the thickness of the pore plate (30) is 3-5 mm.

6. A pipe buffering device, characterized in that:

the method comprises the following steps: a gas tank (20) for supplying gas to the compressor; a second connecting flange (21) is arranged at an outlet of the air storage tank (20);

a pore plate (30) is arranged at one end, relatively far away from the gas storage tank (20), of the second connecting flange (21);

the orifice plate (30) centre is equipped with buffer hole (31) just buffer hole (31) diameter is less than the hole diameter of second flange (21).

7. The pipe buffering device as claimed in claim 6, wherein:

the diameter of the buffer hole (31) and the diameter of the inner hole of the second connecting flange (21) are in proportion as follows: 0.43 to 0.5.

8. A pipe buffering device as claimed in claim 6 or 7, wherein:

the edge of the buffer hole (31) is a sharp angle with an included angle of 90 degrees.

9. A pipe buffering device as claimed in claim 6 or 7, wherein:

the thickness of the pore plate (30) is 3-5 mm.

Images