CN102644630A - Pressure regulation device, pressure regulation method thereof and pumping machine with same - Google Patents
Pressure regulation device, pressure regulation method thereof and pumping machine with same Download PDFInfo
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- CN102644630A CN102644630A CN2012101401912A CN201210140191A CN102644630A CN 102644630 A CN102644630 A CN 102644630A CN 2012101401912 A CN2012101401912 A CN 2012101401912A CN 201210140191 A CN201210140191 A CN 201210140191A CN 102644630 A CN102644630 A CN 102644630A
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Abstract
The invention discloses a pressure regulation device, a pressure regulation method thereof and a pumping machine with the same. The pressure regulation device comprises an energy accumulator (2) and a pressure conversion device, wherein the energy accumulator (2) is provided with a first chamber (2a) communicated with a load pipeline (10) and a second chamber (2b) filled by a buffer medium (3), and the pressure conversion device is connected between the load pipeline (10) and the second chamber (2b). The pressure regulating method of the pressure regulation device is that when load pressure in the load pipeline is changed, a pressure conversion device moves, and the buffer medium is pressed in or sucked out of the second chamber (2b) so as to enable pressure in the second chamber to have the same change. The pressure of the pressure regulation device can be regulated timely according to the load pressure, and regulating method and structural design are simple.
Description
Technical field
The pumping machine that the present invention relates to a kind of pressure regulator and regulating method and have this pressure regulator.
Background technique
In the energy-storage system of existing technology pumping machine, an accumulator can only provide a working pressure, and first chamber of accumulator is filled with first medium; Second chamber is filled with second medium; First chamber is connected with first oleo-pneumatic suspension through first pipeline, and first pipeline is connected with second oleo-pneumatic suspension through second pipeline, when pressure changes in first oleo-pneumatic suspension; Second chamber just can move; Make first medium in the chamber of winning inject first oleo-pneumatic suspension, thereby its pressure is remained unchanged, but the accumulator internal pressure can't be regulated.
The method that existing technology is regulated the accumulator internal pressure is: use the accumulator of a plurality of different operating pressure, when needs different operating pressure, between them, switch, this scheme not only cost is higher, and system complex is too fat to move.
Summary of the invention
The object of the invention is exactly in order to overcome the problem that above-mentioned existing technology exists, on the one hand a kind of pressure regulator to be provided, and the pressure of this pressure regulator can be according to the induced pressure timely adjustment, and structural design is simple.
For realizing above-mentioned purpose of the present invention, following technological scheme is provided:
A kind of pressure regulator comprises: accumulator has first chamber and second chamber that is filled with buffer medium with the load pipeline connection; Pressure conversion device is connected between the load pipeline and second chamber; When the induced pressure in the load pipeline changed, pressure conversion device was regulated second cavity indoor pressure, made it to change with the variation of induced pressure.
Preferably, be provided with valve between first chamber and the load pipeline; Be provided with valve between said pressure conversion device and the said load pipeline.
Preferably, pressure conversion device comprises: first cylinder body is mounted with first piston in it; Second cylinder body is mounted with second piston in it; And piston rod, the one of which end is connected with first piston, and the other end is connected with second piston; Wherein, the rodless cavity of first cylinder body is communicated with said second chamber, the rodless cavity of second cylinder body and said load pipeline connection.
Preferably, first chamber is through first pipeline and said load pipeline connection; The rodless cavity of said second cylinder body is through second pipeline and load pipeline connection; Wherein, second pipeline is the damping pipeline.
Preferably, the sectional area of the sectional area of said first piston and second piston is proportional.
The present invention also provides a kind of pressure regulating method of pressure regulator on the other hand; When the induced pressure in the load pipeline changes; Pressure conversion device action, buffer medium is pressed into or sucking-off second chamber, makes the second cavity indoor pressure generation identical change.
Preferably, pressure conversion device comprises: first cylinder body is mounted with first piston in it; Second cylinder body is mounted with second piston in it; And piston rod, the one of which end is connected with first piston, and the other end is connected with second piston; Wherein, the rodless cavity of first cylinder body is communicated with said second chamber, the rodless cavity of second cylinder body and said load pipeline connection.
Preferably, the action that buffer medium is pressed into said second chamber comprises the steps: that induced pressure increases, and second piston rod chamber direction to second cylinder body under the effect of induced pressure moves; The piston rod that connects second piston and first piston promotes first piston and moves to the rodless cavity direction of first cylinder body; First piston is pressed into second chamber with buffer medium, makes second chamber pressure increase, so that be complementary with induced pressure.
Preferably, buffer medium is comprised the steps: that by the action of said second chamber of sucking-off induced pressure reduces, and first piston rod chamber direction to first cylinder body under the effect of buffer medium pressure moves; Buffer medium is made second chamber pressure reduce by sucking-off second chamber, so that be complementary with induced pressure; The piston rod that connects the first piston and second piston promotes second piston and moves to the rodless cavity direction of second cylinder body.
The present invention also provides a kind of pumping machine, has above-mentioned pressure regulator.
Beneficial effect of the present invention embodies in the following areas:
1) the present invention connects accumulator on the load pipeline; Between accumulator second chamber and load pipeline, be connected pressure conversion device; When induced pressure generation smooth change, pressure conversion device real-time regulated energy storage pressure makes energy storage pressure can satisfy the needs of different loads pressure; Can be applied to have wide range of applications under any hydraulic pressure or the pressure work condition;
2) the present invention does not increase new active power source, control system, reponse system; Between accumulator and the load pipeline and between pressure conversion device and the load pipeline valve is being set; Make pressure regulator be independent of work system; At any time being connected of cut-out pressure controlling device and delivery pipe, can the function of work system not had any impact;
3) adopt pressure conversion device can realize the conversion between different medium, the different pressures, the pressure conversion device structural design is simple, is suitable for;
4) pressure controlled method of the present invention is to carry out according to the variation of induced pressure in good time, and when induced pressure changed, buffer medium was pressed into or sucking-off second chamber thereupon, thereby the accumulator internal pressure is regulated, and regulating method is simple.
Description of drawings
Fig. 1 is the structural drawing of the pressure regulator of one embodiment of the invention;
Description of reference numerals: 1-working medium; 10-load pipeline; 11-first pipeline; The 11a-valve; 12-second pipeline; The 12a-valve; The 2-accumulator; 2a-first chamber; 2b-second chamber; The 3-buffer medium; 4-first cylinder body; The 40-first piston; 5-second cylinder body; 50-second piston; The 45-piston rod.
Embodiment
Shown in the structural drawing of the pressure regulator of Fig. 1 one embodiment of the invention, pressure regulator of the present invention comprises: accumulator 2 has first chamber 2a that is communicated with load pipeline 10 and the second chamber 2b that is filled with buffer medium 3; Pressure conversion device is connected between the load pipeline 10 and the second chamber 2b; When the induced pressure in the load pipeline 10 increased, increased load pressure incoming pressure conversion equipment made it to export one and makes the second cavity indoor pressure increased pressure; When the induced pressure in the load pipeline steadily reduces; The induced pressure incoming pressure conversion equipment that reduces makes it to export a pressure that makes that second cavity indoor pressure reduces; Thereby make accumulator 2 can bear different induced pressures, thereby different induced pressures is played buffer function.
Wherein, pressure conversion device comprises: first cylinder body 4 is mounted with first piston 40 in it; Second cylinder body 5 is mounted with second piston 50 in it; And piston rod 45, the one of which end is connected with first piston 40, and the other end is connected with second piston 50; Wherein, the rodless cavity of first cylinder body 4 is communicated with the second chamber 2b, and the rodless cavity of second cylinder body 5 is communicated with load pipeline 10.
Preferably, the first chamber 2a is communicated with load pipeline 10 through first pipeline 11; The rodless cavity of second cylinder body 5 is communicated with load pipeline 10 through second pipeline 12; Wherein, second pipeline is the damping pipeline.
The purpose that among the present invention second pipeline 12 is set to the damping pipeline is to make that pressure conversion device is that the of short duration variation of moment of induced pressure is insensitive.When of short duration increase of moment takes place or reduces in induced pressure; Because pressure conversion device is insensitive to this variation; Therefore pressure conversion device can not carry out corresponding action; Of short duration increase of moment just can not take place yet or reduce in the pressure in accumulator second chamber, guaranteed that so just accumulator can this instantaneous variation plays the effect of buffering.
When induced pressure keeps constant; The first piston 40 and second piston 50 keep motionless; Make the second chamber 2b internal pressure keep constant; The second chamber 2b internal pressure can satisfy the needs of induced pressure, and at this moment, first piston 40 right atrial pressures (being the rodless cavity internal pressure) keep balance with second piston, 50 left side pressure (being the rodless cavity internal pressure).
When the induced pressure in the load pipeline 10 steadily increases; Second piston, 50 left side pressure increase; Second piston 50 moves right under the induced pressure effect, and drive piston rod 45, first piston 40 move right, and when first piston 40 moves right buffer medium 3 are pressed into the second chamber 2b; Make second cavity indoor pressure increase, thereby make second chamber to play buffer function this steady increased load.
When the induced pressure in the load pipeline 10 steadily reduces; Second piston, 50 left side pressure reduce; First piston 40 is moved to the left under the pressure effect of buffer medium 3; Drive piston rod 45, second piston 50 are moved to the left, and first piston 40 makes the second chamber 2b internal pressure reduce when being moved to the left, thereby makes second chamber to play buffer function to this load that steadily reduces.
The present invention is provided with valve 11a on first pipeline 11; On second pipeline 12, valve 12a is set; Make pressure regulator of the present invention be independent of main system, when pressure regulator of the present invention breaks down, can valve 11a, 12a be closed; Thereby pressure regulator of the present invention and main system are cut off, do not influence the proper functioning of main system.
The sectional area of first piston 40 is less than the sectional area of second piston 50 among the present invention; Because when piston rod 45 keeps balance; The product of first piston 40 right atrial pressures and first piston 40 sectional areas equals the product of second piston, 50 left side pressure and second piston, 50 sectional areas; Therefore, when less variation took place second piston, 50 left side pressure, first piston 40 right atrial pressures took place to change greatly.
According to the needs of practical application, can the sectional area of first piston 40 and the sectional area of second piston 50 be designed to satisfy certain relation.
When using pressure regulator of the present invention, only need connect pressure regulator of the present invention in the delivery pipe stage casing on the existing basis, pressure regulator is independent of main system, flexible arrangement, change less; And at any time being connected of cut-out pressure controlling device and delivery pipe, which kind of fault no matter occurs, all can not impact the main system function, parts are simple, and it is convenient to overhaul.Pressure regulator of the present invention can be used in all fluid delivery pipelines that do not solidify, condense, for example water, rock gas etc.
Although preceding text have been done detailed description to the present invention; But the invention is not restricted to this; The technician in present technique field can principle according to the present invention make amendment, and therefore, all various modifications of carrying out according to principle of the present invention all are to be understood that to falling into protection scope of the present invention.
Claims (9)
1. pressure regulator is characterized in that comprising:
Accumulator (2) has first chamber (2a) that is communicated with load pipeline (10) and second chamber (2b) that is filled with buffer medium (3);
Pressure conversion device is connected between load pipeline (10) and second chamber (2b);
When the induced pressure in the load pipeline (10) changed, pressure conversion device was regulated second chamber (2b) internal pressure, made it to change with the variation of induced pressure.
2. pressure regulator as claimed in claim 1 is characterized in that, is provided with valve between said first chamber (2a) and the said load pipeline (10); Be provided with valve between said pressure conversion device and the said load pipeline (10).
3. according to claim 1 or claim 2 pressure regulator is characterized in that said pressure conversion device comprises:
First cylinder body (4) is mounted with first piston (40) in it;
Second cylinder body (5) is mounted with second piston (50) in it; And
Piston rod (45), the one of which end is connected with first piston (40), and the other end is connected with second piston (50); Wherein, the rodless cavity of first cylinder body (4) is communicated with said second chamber (2b), the rodless cavity of second cylinder body (5) and said load pipeline connection.
4. pressure regulator as claimed in claim 3 is characterized in that, said first chamber (2a) is communicated with said load pipeline (10) through first pipeline (11); The rodless cavity of said second cylinder body (5) is communicated with load pipeline (10) through second pipeline (12); Wherein, second pipeline (12) is the damping pipeline.
5. pressure regulator as claimed in claim 4 is characterized in that, the sectional area of the sectional area of said first piston (40) and second piston (50) is proportional.
6. the pressure regulating method like the said pressure regulator of claim 3 is characterized in that, comprises the step of carrying out as follows:
When the induced pressure in the load pipeline changes, pressure conversion device action, buffer medium is pressed into or sucking-off second chamber (2b), makes the second cavity indoor pressure generation identical change.
7. method as claimed in claim 6 is characterized in that, the action that said buffer medium is pressed into said second chamber (2b) comprises the steps:
Induced pressure increases, and second piston (50) moves to the rod chamber direction of second cylinder body (5) under the effect of induced pressure;
The piston rod (45) that connects second piston (50) and first piston (40) promotes first piston and moves to the rodless cavity direction of first cylinder body (4);
First piston (40) is pressed into second chamber (2b) with buffer medium (3), makes second chamber (2b) pressure increase, so that be complementary with induced pressure.
8. method as claimed in claim 6 is characterized in that, said buffer medium is comprised the steps: by the action of said second chamber of sucking-off (2b)
Induced pressure reduces, and first piston (40) moves to the rod chamber direction of first cylinder body (4) under the effect of buffer medium pressure;
Buffer medium is made second chamber (2b) pressure reduce, so that be complementary with induced pressure by sucking-off second chamber (2b);
The piston rod (45) that connects first piston (40) and second piston (50) promotes second piston and moves to the rodless cavity direction of second cylinder body (5).
9. a pumping machine is characterized in that, has arbitrary described pressure regulator like claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210140191.2A CN102644630B (en) | 2012-05-08 | 2012-05-08 | Pressure regulation device, pressure regulation method thereof and pumping machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210140191.2A CN102644630B (en) | 2012-05-08 | 2012-05-08 | Pressure regulation device, pressure regulation method thereof and pumping machine with same |
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| Publication Number | Publication Date |
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| CN102644630A true CN102644630A (en) | 2012-08-22 |
| CN102644630B CN102644630B (en) | 2014-12-31 |
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| CN201210140191.2A Active CN102644630B (en) | 2012-05-08 | 2012-05-08 | Pressure regulation device, pressure regulation method thereof and pumping machine with same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553984A (en) * | 2001-09-14 | 2004-12-08 | ���ʿ����о�����˾ | System for controlling the discharge of drilling fluid |
| CN101377150A (en) * | 2007-11-23 | 2009-03-04 | 清华大学深圳研究生院 | Double-group element single-piston type hydraulic free piston engine |
| CN201650894U (en) * | 2010-05-04 | 2010-11-24 | 中煤北京煤矿机械有限责任公司 | Controllable high pressure and large flow generating device |
| CN201757245U (en) * | 2010-05-25 | 2011-03-09 | 云南大红山管道有限公司 | Buffer unit for conveying main pump of slurry pipeline |
| CN102297312A (en) * | 2011-06-28 | 2011-12-28 | 北京市三一重机有限公司 | Mechanism for lowering fluid pulse impact, double-cylinder reversing pumping system and concrete pump |
-
2012
- 2012-05-08 CN CN201210140191.2A patent/CN102644630B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553984A (en) * | 2001-09-14 | 2004-12-08 | ���ʿ����о�����˾ | System for controlling the discharge of drilling fluid |
| CN101377150A (en) * | 2007-11-23 | 2009-03-04 | 清华大学深圳研究生院 | Double-group element single-piston type hydraulic free piston engine |
| CN201650894U (en) * | 2010-05-04 | 2010-11-24 | 中煤北京煤矿机械有限责任公司 | Controllable high pressure and large flow generating device |
| CN201757245U (en) * | 2010-05-25 | 2011-03-09 | 云南大红山管道有限公司 | Buffer unit for conveying main pump of slurry pipeline |
| CN102297312A (en) * | 2011-06-28 | 2011-12-28 | 北京市三一重机有限公司 | Mechanism for lowering fluid pulse impact, double-cylinder reversing pumping system and concrete pump |
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| CN102644630B (en) | 2014-12-31 |
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