CN110906096B - Self-adaptive pulse buffer device of pipeline conveying system - Google Patents
Self-adaptive pulse buffer device of pipeline conveying system Download PDFInfo
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- CN110906096B CN110906096B CN201911349315.6A CN201911349315A CN110906096B CN 110906096 B CN110906096 B CN 110906096B CN 201911349315 A CN201911349315 A CN 201911349315A CN 110906096 B CN110906096 B CN 110906096B
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- air
- buffer
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- diaphragm
- valve core
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- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 238000009423 ventilation Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims 4
- 239000007789 gas Substances 0.000 description 25
- 230000005540 biological transmission Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of prepressing type pulse buffer devices, in particular to a self-adaptive pulse buffer device of a pipeline conveying system. The device comprises a shell, an inflatable valve sleeve and a diaphragm, wherein the shell comprises an upper shell and a lower shell, and the diaphragm is fixed between the upper shell and the lower shell; the upper part of the upper shell is provided with an inflatable valve sleeve, the center of the inflatable valve sleeve is vertically provided with a buffer channel, the outer side wall of the inflatable valve sleeve is also provided with an air inlet channel communicated with the buffer channel, the air inlet channel is externally connected with an air supplementing air source, an air exchange valve core is arranged in the buffer channel, a gap is arranged between the buffer channel and the air exchange valve core, and the side surface of the air exchange valve core is respectively provided with an upper air conveying groove and a lower air conveying groove; the lower part of the lower shell is provided with a lower connecting nozzle which is connected with the conveying pipeline. The invention automatically adjusts the amount of the pre-charging gas according to the position of the diaphragm by arranging the buffer device, so that the pulse buffer device is kept in an optimal working state, and meanwhile, the pressure in the pipeline is removed.
Description
Technical Field
The invention relates to the technical field of prepressing type pulse buffer devices, in particular to a self-adaptive pulse buffer device of a pipeline conveying system.
Background
The pulse buffer device is also called a pulsation damper and an air chamber, and is a very effective device for eliminating the pulsation of the internal flow. Pressure fluctuations and flow shocks in the delivery line can cause pipe chatter resulting in damage to the instrument and meter, resulting in meter misalignment. The air compression and expansion in the pulse buffer device is used for storing or discharging the part of fluid with more or less than the average flow, so that the purpose of reducing the flow pulsation in the conveying pipeline is achieved. The pulse buffer device is divided into normal pressure type and pre-pressure type according to the pressure of the gas filled. The precompaction type pulse buffer device separates gas and liquid by a diaphragm, and is filled with gas (air or nitrogen) with certain pressure in advance. The inflation pressure of the pulse buffer device is 0.5-0.8 times of the pressure of the conveying pipeline, and if the inflation pressure exceeds the range, the using effect of the buffer device can be affected. This requires a regular adjustment of the inflation pressure in dependence on the delivery line pressure. And because of the existence of micro leakage, even if the pressure of the conveying pipeline is unchanged, the gas needs to be periodically replenished.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the self-adaptive pulse buffer device of the pipeline conveying system, which is characterized in that the buffer device is arranged, the amount of the pre-charging gas is automatically adjusted according to the position of the diaphragm, so that the pulse buffer device is kept in an optimal working state, and meanwhile, the pressure in a pipeline is relieved.
The technical scheme of the invention is as follows:
The utility model provides a pipeline conveying system self-adaptation pulse buffer, includes casing, inflation valve pocket and diaphragm, its characterized in that: the shell comprises an upper shell and a lower shell, and the diaphragm is fixed between the upper shell and the lower shell; the upper part of the upper shell is provided with an inflation valve sleeve, the center of the inflation valve sleeve is vertically provided with a buffer channel, the outer side wall of the inflation valve sleeve is also provided with an air inlet channel communicated with the buffer channel, the air inlet channel is externally connected with an air supplementing air source, and the lower part of the inflation valve sleeve is also provided with an air outlet channel communicated with the buffer channel; a ventilation valve core is arranged in the buffer channel, a gap is arranged between the buffer channel and the ventilation valve core, the lower part of the ventilation valve core is fixed with a diaphragm through a bolt, the ventilation valve core is of a columnar structure, and an upper air conveying groove and a lower air conveying groove are respectively arranged on the side surface of the ventilation valve core; the lower part of the lower shell is provided with a lower connecting nozzle which is connected with a conveying pipeline.
Preferably, the opening of the buffer channel is located on the same vertical line, and the opening of the buffer channel is located on the same vertical line.
Preferably, the ventilation valve core is respectively provided with an upper gasket and a lower gasket, the upper gasket is arranged on the upper portion of the diaphragm, the lower gasket is arranged on the lower portion of the diaphragm, and the upper gasket, the lower gasket and the diaphragm are pre-tightened through bolts.
Preferably, an upper chamber is formed between the diaphragm and the upper housing, and a lower chamber is formed between the diaphragm and the lower housing.
Preferably, the lower part of the inflatable valve sleeve is connected with the upper shell through threads, and the lower part of the inflatable valve sleeve is connected with the upper cavity.
Preferably, a sealing ring is arranged between the inflating valve sleeve and the ventilation valve core.
Preferably, the air inlet channel is lower than the air outlet channel at the opening of the buffer channel, a sealing ring I is arranged between the air charging valve sleeve and the air exchanging valve core at the lower part of the opening of the buffer channel, a sealing ring II is arranged between the air charging valve sleeve and the air exchanging valve core at the opening of the buffer channel and the air outlet channel, and a sealing ring III is arranged between the air charging valve sleeve and the air exchanging valve core at the upper part of the opening of the buffer channel.
Preferably, a dust cover is arranged on the ventilation valve core at the top of the buffer channel.
Working principle: one end of the ventilation valve core is fixed on the diaphragm, the position of the ventilation valve core is changed along with the deformation of the diaphragm, the upper part of the diaphragm is gas, and the lower part of the diaphragm is liquid in the conveying pipeline. When the diaphragm is in the middle position, the air exchange valve core and the sealing ring are well sealed, namely are not inflated and not deflated, at the moment, the lower air conveying groove on the side surface of the air exchange valve core is positioned at the lower part of the sealing ring I, and the upper air conveying groove is positioned at the upper part of the sealing ring III. When the pressure of the conveying pipeline rises or the pre-inflatable body leaks, the diaphragm sheet and the ventilation valve core move upwards, when the lower gas conveying groove rises to the position of the sealing ring I, the sealing ring II seals a gap between a buffer channel in the inflating valve sleeve and the ventilation valve core, the gas inlet channel is communicated, the gas source inflates the pulse buffer device through the gas inlet channel, the lower gas conveying groove moves downwards until the balance state is restored, and the gas inlet channel is closed. When the pressure of the conveying pipeline is reduced, the diaphragm and the ventilation valve core move downwards, the upper gas conveying groove is positioned at the position of the sealing ring III, the sealing ring II seals a gap between the buffer channel in the gas filling valve sleeve and the ventilation valve core, the gas outlet channel is communicated, the buffer device is deflated until the buffer device is restored to the balance state, the upper gas conveying groove moves upwards, and the gas outlet channel is closed.
The invention is mainly used on low pressure (pressure less than 8 bar) pipelines. The device mainly comprises a pneumatic diaphragm pump pipeline and a metering pump pipeline, and can also be used for gear pumps and three-plunger pump pipelines.
The beneficial effects of the invention are that
The invention has novel design and easy operation. The invention utilizes the compressibility of gas, and when the liquid loop works, the lower shell of the buffer device stores and releases the liquid in the conveying pipeline along with the fluctuation of the pressure of the conveying pipeline, so as to meet the requirement of reducing the pressure fluctuation and flow impact in the conveying pipeline. The invention can reduce the maintenance frequency of the pulse buffer device in the use process, reduce the use cost and greatly improve the air leakage tolerance of the pulse buffer device. Meanwhile, the defect of the application of the common diaphragm buffer device in the pneumatic pump system is overcome.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the present invention during exhaust.
Fig. 3 is a schematic diagram of the structure of the present invention for invigorating qi.
Fig. 4 is a schematic structural view of the inflatable valve sleeve of the present invention.
Wherein, the valve sleeve comprises a 1-inflatable valve sleeve, a 2-diaphragm, a 3-upper shell, a 4-lower shell, a 5-buffer channel, a 6-air inlet channel, a 7-air outlet channel, an 8-air exchange valve core and a 9-upper air delivery groove, 10-lower gas transmission groove, 11-lower connecting nozzle, 12-upper gasket, 13-lower gasket, 14-sealing ring I, 15-sealing ring II, 16-sealing ring III and 17-dust cover.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
The self-adaptive pulse buffer device of the pipeline conveying system comprises a shell, an inflatable valve sleeve 1 and a diaphragm 2, wherein the shell comprises an upper shell 3 and a lower shell 4, and the diaphragm 2 is fixed between the upper shell 3 and the lower shell 4; the upper part of the upper shell 3 is provided with an inflatable valve sleeve 1, the center of the inflatable valve sleeve 1 is vertically provided with a buffer channel 5, the outer side wall of the inflatable valve sleeve 1 is also provided with an air inlet channel 6 communicated with the buffer channel, the air inlet channel 6 is externally connected with an air supplementing source, and the lower part of the inflatable valve sleeve 1 is also provided with an air outlet channel 7 communicated with the buffer channel 5; a ventilation valve core 8 is arranged in the buffer channel 5, a gap is arranged between the buffer channel 5 and the ventilation valve core 8, the lower part of the ventilation valve core 8 is fixed with the diaphragm 2 through a bolt, the ventilation valve core 8 is of a columnar structure, and an upper gas transmission groove 9 and a lower gas transmission groove 10 are respectively arranged on the side surface of the ventilation valve core 8; the lower part of the lower shell 4 is provided with a lower connecting nozzle 11, and the lower connecting nozzle 11 is connected with a conveying pipeline. The upper gas transmission groove 9 and the gas transmission groove 6 are positioned on the same vertical line at the opening of the buffer channel 5, and the lower gas transmission groove 10 and the gas transmission groove 7 are positioned on the same vertical line at the opening of the buffer channel 5. The ventilation valve core 8 is respectively provided with an upper gasket 12 and a lower gasket 13, the upper gasket 12 is arranged on the upper part of the diaphragm 2, the lower gasket 13 is arranged on the lower part of the diaphragm 2, and the upper gasket 12, the lower gasket 13 and the diaphragm 2 are pre-tightened through bolts. An upper chamber is formed between the diaphragm 2 and the upper housing 3, and a lower chamber is formed between the diaphragm 2 and the lower housing 4. The lower part of the inflatable valve sleeve 1 is connected with the upper shell 3 through threads, and the lower part of the inflatable valve sleeve 1 is connected with the upper chamber. A sealing ring is arranged between the inflating valve sleeve 1 and the ventilation valve core 8. The air inlet channel 6 is lower than the air outlet channel 7 at the opening of the buffer channel 5, a sealing ring I14 is arranged between the air charging valve sleeve 1 and the air exchanging valve core 8 at the lower part of the opening of the buffer channel 5, the air inlet channel 6 is provided with a sealing ring II 15 between the air charging valve sleeve 1 and the air exchanging valve core 8 at the opening of the buffer channel 5 and the air outlet channel 7 at the opening of the buffer channel 5, and a sealing ring III 16 is arranged between the air charging valve sleeve 1 and the air exchanging valve core 8 at the upper part of the opening of the buffer channel 5 and the air outlet channel 7. A dust cover 17 is arranged on the ventilation valve core 8 at the top of the buffer channel 5.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a pipeline conveying system self-adaptation pulse buffer, includes casing, inflation valve pocket and diaphragm, its characterized in that: the shell comprises an upper shell and a lower shell, and the diaphragm is fixed between the upper shell and the lower shell; the upper part of the upper shell is provided with an inflation valve sleeve, the center of the inflation valve sleeve is vertically provided with a buffer channel, the outer side wall of the inflation valve sleeve is also provided with an air inlet channel communicated with the buffer channel, the air inlet channel is externally connected with an air supplementing air source, and the lower part of the inflation valve sleeve is also provided with an air outlet channel communicated with the buffer channel; a ventilation valve core is arranged in the buffer channel, a gap is arranged between the buffer channel and the ventilation valve core, the lower part of the ventilation valve core is fixed with a diaphragm through a bolt, the ventilation valve core is of a columnar structure, and an upper air conveying groove and a lower air conveying groove are respectively arranged on the side surface of the ventilation valve core; the lower part of the lower shell is provided with a lower connecting nozzle, the lower connecting nozzle is connected with a conveying pipeline, the opening of the upper air conveying groove and the opening of the air inlet channel are arranged on the same vertical line, the opening of the lower air conveying groove and the opening of the air outlet channel are arranged on the same vertical line, the air exchange valve core is respectively provided with an upper gasket and a lower gasket, the upper gasket is arranged on the upper part of the diaphragm, the lower gasket is arranged on the lower part of the diaphragm, the upper gasket, the lower gasket and the diaphragm are pre-tightened through bolts, the opening of the air inlet channel is lower than the opening of the air outlet channel in the opening of the buffer channel, a sealing ring I is arranged between the air inlet valve sleeve and the air exchange valve core at the lower part of the opening of the buffer channel, a sealing ring II is arranged between the air inlet valve sleeve and the air exchange valve core at the upper part of the opening of the buffer channel, and a sealing ring III is arranged between the air inlet valve sleeve and the air exchange valve core at the upper part of the opening of the air outlet channel.
2. An adaptive pulse buffer for a pipe conveying system according to claim 1, wherein: an upper chamber is formed between the diaphragm and the upper shell, and a lower chamber is formed between the diaphragm and the lower shell.
3. An adaptive pulse buffer for a pipe conveying system according to claim 1, wherein: the lower part of the inflatable valve sleeve is connected with the upper shell through threads, and the lower part of the inflatable valve sleeve is connected with the upper cavity.
4. An adaptive pulse buffer for a pipe conveying system according to claim 1, wherein: a sealing ring is arranged between the inflation valve sleeve and the ventilation valve core.
5. An adaptive pulse buffer for a pipe conveying system according to claim 1, wherein: and a dust cover is arranged on the ventilation valve core at the top of the buffer channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349315.6A CN110906096B (en) | 2019-12-24 | 2019-12-24 | Self-adaptive pulse buffer device of pipeline conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349315.6A CN110906096B (en) | 2019-12-24 | 2019-12-24 | Self-adaptive pulse buffer device of pipeline conveying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110906096A CN110906096A (en) | 2020-03-24 |
| CN110906096B true CN110906096B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911349315.6A Active CN110906096B (en) | 2019-12-24 | 2019-12-24 | Self-adaptive pulse buffer device of pipeline conveying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113027735A (en) * | 2021-03-05 | 2021-06-25 | 博朗普特工业设备(苏州)有限公司 | Self-adaptive low-pulsation combined pneumatic diaphragm pump with diaphragm alarm device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304799Y (en) * | 1997-09-11 | 1999-01-20 | 方瑞华 | Dual pipe counter-flow absorber |
| CN204284775U (en) * | 2014-11-19 | 2015-04-22 | 日照市恒通水处理设备有限公司 | Diaphragm type pulse buffer |
| CN204611201U (en) * | 2015-05-20 | 2015-09-02 | 张正明 | A kind of diaphragm type buffer with insulation jacket |
| CN207777872U (en) * | 2018-01-09 | 2018-08-28 | 江苏绩优机电科技有限公司 | Vacuum tank |
| CN110219838A (en) * | 2019-07-19 | 2019-09-10 | 浙江爱力浦科技股份有限公司 | A kind of novel diaphragm type buffer unit and assemble method |
| CN211118237U (en) * | 2019-12-24 | 2020-07-28 | 日照市恒通水处理设备有限公司 | Self-adaptive pulse buffering device of pipeline conveying system |
-
2019
- 2019-12-24 CN CN201911349315.6A patent/CN110906096B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2304799Y (en) * | 1997-09-11 | 1999-01-20 | 方瑞华 | Dual pipe counter-flow absorber |
| CN204284775U (en) * | 2014-11-19 | 2015-04-22 | 日照市恒通水处理设备有限公司 | Diaphragm type pulse buffer |
| CN204611201U (en) * | 2015-05-20 | 2015-09-02 | 张正明 | A kind of diaphragm type buffer with insulation jacket |
| CN207777872U (en) * | 2018-01-09 | 2018-08-28 | 江苏绩优机电科技有限公司 | Vacuum tank |
| CN110219838A (en) * | 2019-07-19 | 2019-09-10 | 浙江爱力浦科技股份有限公司 | A kind of novel diaphragm type buffer unit and assemble method |
| CN211118237U (en) * | 2019-12-24 | 2020-07-28 | 日照市恒通水处理设备有限公司 | Self-adaptive pulse buffering device of pipeline conveying system |
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