CN102588390A - Barrier damp buffering device for large-flow hydraulic system - Google Patents
Barrier damp buffering device for large-flow hydraulic system Download PDFInfo
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- CN102588390A CN102588390A CN2012100383048A CN201210038304A CN102588390A CN 102588390 A CN102588390 A CN 102588390A CN 2012100383048 A CN2012100383048 A CN 2012100383048A CN 201210038304 A CN201210038304 A CN 201210038304A CN 102588390 A CN102588390 A CN 102588390A
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Abstract
The invention discloses a barrier damp buffering device for a large-flow hydraulic system, belonging to parts of basic engineering equipment. The barrier damp buffering device for a large-flow hydraulic system is characterized by comprising a shell, a liquid inlet pipe, a liquid outlet pipe, 2-8 barrier plates and aerial drainage through holes, wherein the liquid inlet pipe and the liquid outlet pipe are configured on two ends of the shell and are communicated with the inner cavity of the shell; the 2-8 barrier plates are positioned in the inner cavity of the shell and are parallel to the liquid inlet pipe and the liquid outlet pipe; the aerial drainage through holes are formed in the upper part or the lower part of each barrier plate and are formed in sequence; space between the barrier plates is 20-40mm; the diameter of each aerial drainage through hole is 2.5-5.0mm; the number N of the aerial drainage through holes is equal to liquid flow Q/K, and in the formula, the constant quantity K is 7.5-12.5 liters/min; the aerial drainage through holes are mutually staggered in the positions on the upper part or the lower part of the barrier plate; and the cross section of the shell is rectangular or round. After trial, compared with the prior art, the barrier damp buffering device for a large-flow hydraulic system has the beneficial effects that the peak value pressure of high-temperature high-pressure hydraulic oil varied in a pressure pulse type is greatly lowered to 75%, and the service life of the cooling radiator is greatly prolonged by more than 4 times.
Description
Technical field: the invention belongs to the parts of ground foundation engineering equipment, especially for a kind of high-volume hydraulic system barrier damping buffering device of grouting pump.
Background technique: the high-temp liquid after the power conveying equipment work done of existing technology grouting pump, in oil cylinder during work done, oily temperature rises to 40 ℃ rapidly, when oil cylinder is back to fuel tank, must reduce the oil temperature through cooling radiator like hydraulic oil.But; Not only the oil temperature is high for the in-oil cylinder backflow hydraulic oil of the power conveying equipment of the grouting pump that flow is bigger; And pressure forms the pulsed variation after the instantaneous switching of the selector valve on the oil returning tube; When the withdrawing oil that this pressure pulse formula changes directly gets into wing formula cooling radiator; Peak pressure will inevitably form sizable impact collapsing force from the chip inner chamber to structural weak up to the HTHP hydraulic pressure more than the 4MPa to the heat transmission chip of cooling radiator with oil, causes cooling radiator to shorten dramatically working life.And the working life of cooling radiator is short, has directly influenced the normal operation of whole grouting pump.
This shows, study and design a kind of peak pressure that reduces the HTHP hydraulic pressure of pressure pulse formula variation with oil significantly, thereby the high-volume hydraulic system barrier damping buffering device that has prolonged cooling radiator working life significantly is necessary.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology; Design a kind of peak pressure that reduces the HTHP hydraulic pressure of pressure pulse formula variation with oil significantly, thus the high-volume hydraulic system barrier damping buffering device that has prolonged cooling radiator working life significantly.
The objective of the invention is to realize like this:
A kind of high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing; Parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe of housing inner chamber; Be positioned at the 2-8 piece grid plate of housing inner chamber and the parallel installation of liquid inlet and outlet pipe, be positioned at earial drainage through hole every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
The cross section of said housing is rectangular, or circular.
Running of the present invention is: the pulsed that the selector valve from the oil cylinder oil returning tube gets into liquid inlet pipe of the present invention changes HTHP hydraulic pressure more than the peak pressure 4MPa with oil; When earial drainage through hole flow through grid plate top or bottom, that arrange in order; Receive stopping of the 1st grid plate non-earial drainage throughhole portions plate face; Can only arrange in order from the 1st grid plate top, the aperture is N earial drainage through hole high speed ejection of 2.5-5.0 millimeter, its pulsed changes peak pressure and stops at such grid plate---compelledly from the ejection process of earial drainage through hole, be reduced; Get into spacing and be the 2nd grid plate of 20-40 millimeter and the space between the 1st grid plate; Receive stopping of the 2nd grid plate non-earial drainage throughhole portions plate face; Because the earial drainage through hole staggers in the position of grid plate top or bottom each other; Can only arrange in order from the 2nd grid plate bottom, the aperture is to spray N the earial drainage through hole of 2.5-5.0 millimeter, its pulsed changes peak pressure and stops at the 2nd grid plate---be compelled from the earial drainage through hole, further to be reduced in the ejection process; So process is repeated on the space between the 3rd grid plate and the 2nd grid plate, Until from arrange in order from the 8th grid plate bottom, the aperture is to gush out N the earial drainage through hole of 2.5-5.0 millimeter; This moment, its pulsed variation peak pressure dropped to below the 1MPa; Flow out into the backflow hydraulic oil of cooling radiator heat transmission blade inner chamber from drain pipe, the pulsed impact force that chip inner-cavity structure weakness is formed reduces significantly.
The high-volume hydraulic system barrier damping buffering device that the present invention's enforcement obtains through on probation, has compared with prior art shown following beneficial effect:
1, reduced the peak pressure of the HTHP hydraulic pressure of pressure pulse formula variation significantly with oil.The pulsed that selector valve from the oil cylinder oil returning tube gets into liquid inlet pipe of the present invention changes HTHP hydraulic pressure more than the peak pressure 4MPa with oil; Flow through behind the barrier damping buffering device of the present invention; The pulsed that flows into the hydraulic oil of cooling radiator from drain pipe of the present invention changes peak pressure and is reduced to below the 1MPa, and the HTHP hydraulic pressure that has reduced the variation of pressure pulse formula reaches 75% with oily peak pressure.
2, prolonged cooling radiator working life significantly.Do not dispose the existing technology grouting pump of high-volume hydraulic of the present invention system barrier damping buffering device; Be no more than 6 months the working life of its cooling radiator; And after the grouting pump of same specification disposed high-volume hydraulic of the present invention system barrier damping buffering device; Be not less than 24 months the working life of its cooling radiator, promptly prolonged at least 4 times the working life of cooling radiator.
Description of drawings: Fig. 1 is the schematic representation that meets thematic structure of the present invention; Fig. 2 is the A-A generalized section among Fig. 1.
Embodiment: with implementation detail explanation of the present invention as follows below in conjunction with accompanying drawing:
Like Fig. 1, shown in 2; A kind of high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing 1, parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe 2,3 of housing inner chamber, is positioned at the 2-8 piece grid plate 4 of housing inner chamber and the parallel installation of liquid inlet and outlet pipe; Be positioned at earial drainage through hole 5 every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
The cross section of said housing 1 is rectangular, or circular.
The high-volume hydraulic system barrier damping buffering device that the present invention implements to obtain mainly is used in the hydraulic power conveying equipment of big flow grouting pump, also can be used for the high-volume hydraulic system that similarly exists the pressure pulse formula to change.
Claims (2)
1. high-volume hydraulic system barrier damping buffering device; It is characterized in that comprising housing (1); Parallel configuration is in the housing two ends and be communicated in the liquid inlet and outlet pipe (2,3) of housing inner chamber; Be positioned at the 2-8 piece grid plate (4) of housing inner chamber and the parallel installation of liquid inlet and outlet pipe, be positioned at earial drainage through hole (5) every grid plate top or bottom, that arrange in order, wherein
---said grid plate mutual spacing is the 20-40 millimeter;
---the aperture of said earial drainage through hole is the 2.5-5.0 millimeter, the number N=flow quantity Q/K of earial drainage through hole, in the formula constant K get the 7.5-12.5 liter/minute;
---said earial drainage through hole staggers in the position of grid plate top or bottom each other.
2. damping buffering device according to claim 1 is characterized in that the cross section of said housing (1) is rectangular, or circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100383048A CN102588390A (en) | 2012-02-21 | 2012-02-21 | Barrier damp buffering device for large-flow hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100383048A CN102588390A (en) | 2012-02-21 | 2012-02-21 | Barrier damp buffering device for large-flow hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN102588390A true CN102588390A (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100383048A Pending CN102588390A (en) | 2012-02-21 | 2012-02-21 | Barrier damp buffering device for large-flow hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591008A (en) * | 2012-08-17 | 2014-02-19 | 李宁 | Reciprocating pump pulse buffer device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100853A (en) * | 1986-01-10 | 1987-01-24 | 机械工业部上海工业自动化仪表研究所 | The multiple stage flow-division fold plate anti-cavitation high-pressure modulating valve |
| CN201269569Y (en) * | 2008-06-13 | 2009-07-08 | 马利华 | Silencer |
| CN201306159Y (en) * | 2008-12-04 | 2009-09-09 | 中国石化集团江苏石油勘探局 | Well perforation composite buffer |
| CN202451522U (en) * | 2012-02-21 | 2012-09-26 | 镇江宝城注浆设备有限公司 | Barrier damping device of large-flow hydraulic system |
-
2012
- 2012-02-21 CN CN2012100383048A patent/CN102588390A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100853A (en) * | 1986-01-10 | 1987-01-24 | 机械工业部上海工业自动化仪表研究所 | The multiple stage flow-division fold plate anti-cavitation high-pressure modulating valve |
| CN201269569Y (en) * | 2008-06-13 | 2009-07-08 | 马利华 | Silencer |
| CN201306159Y (en) * | 2008-12-04 | 2009-09-09 | 中国石化集团江苏石油勘探局 | Well perforation composite buffer |
| CN202451522U (en) * | 2012-02-21 | 2012-09-26 | 镇江宝城注浆设备有限公司 | Barrier damping device of large-flow hydraulic system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591008A (en) * | 2012-08-17 | 2014-02-19 | 李宁 | Reciprocating pump pulse buffer device |
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Application publication date: 20120718 |