CN1032384A - Hydrautic pulse generator - Google Patents
Hydrautic pulse generator Download PDFInfo
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- CN1032384A CN1032384A CN 87106590 CN87106590A CN1032384A CN 1032384 A CN1032384 A CN 1032384A CN 87106590 CN87106590 CN 87106590 CN 87106590 A CN87106590 A CN 87106590A CN 1032384 A CN1032384 A CN 1032384A
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Abstract
This Hydrautic pulse generator comprises a hydropneumatic accumulator (2) that is installed on the intake pipe (1), and this accumulator is connected with clapp oscillator (4) by first conduit (3), and clapp oscillator is connected with flow converter (6) by second conduit (5) again.Flow converter comprises main jet (7) and draining nozzle (8).Second conduit (5) is formed by connecting by the pipe (9,10) of two sections different-diameters at least, and the diameter of the last period (9) is the twice of the diameter of back a section (10).
Description
The present invention is relevant with mining industry, and is relevant with the hydraulic impulse technology, specifically, relevant with Hydrautic pulse generator.
The present invention can be used for mining industry and hydraulic engineering, with high-voltage pulse jet crushing rock, and also can be in order to clean the heating power parts of station boiler unit.
Existing a kind of Hydrautic pulse generator (SU, A, 768968) comprise that a hydropneumatic accumulator of connecting intake pipe, one are by conduit and the clapp oscillator of hydropneumatic accumulator connection, the box type piston motion control mechanism that is connected with clapp oscillator, the main jet that another root conduit of usefulness is communicated with clapp oscillator.Conduit diameter between clapp oscillator and the main jet is littler by 1/3rd than the diameter of conduit between clapp oscillator and the hydropneumatic accumulator, and equal in length.
The working principle of this Hydrautic pulse generator is by the draining nozzle water in the conduit between clapp oscillator and the hydropneumatic accumulator to be quickened, and then current in the pipeline between clapp oscillator and the main jet are quickened once more, before main jet, current are slowed down subsequently.
The hydraulic pressure of this device forms under certain pipeline slenderness ratio, and pressure is not high enough before its main jet, thereby has reduced efficient.In addition, because water pressure fluctuations in the conduit between clapp oscillator and main jet, can produce action of low-voltage pulse after before main jet, being right after high-voltage pulse, and action of low-voltage pulse does not have breaking capacity, this has just reduced the efficient of high-pressure water flow, and watered unnecessary water for broken object, and this is undesirable under many circumstances.
Existing another kind of Hydrautic pulse generator (SU, A, 1081350), its hydropneumatic accumulator is contained on the intake pipe, and be communicated with clapp oscillator by conduit, clapp oscillator is connected by another root conduit and flow converter again, and flow converter comprises a main jet and a draining nozzle.Clapp oscillator is contained between the conduit, comprises a piston and a draining nozzle.Flow converter has a housing, adorns a locking mechanism in the housing, and locking mechanism has two pistons, connects with connecting rod, forms piston seat back cavity and piston back cavity, and one of them piston seat back cavity is communicated with main jet, and another piston seat back cavity is communicated with the draining nozzle.Main jet is identical with the draining orifice size.
The working principle of this device is by clapp oscillator draining nozzle the water in the conduit between clapp oscillator and hydropneumatic accumulator to be quickened, by flow converter draining nozzle the current in the conduit between clapp oscillator and flow converter are quickened, subsequently the current before the main jet are slowed down.
Because the main jet of flow converter equates that with the draining orifice size catheter section between clapp oscillator and flow converter is constant, the high pressure amplitude of pulse is little, so the hydraulic pressure digging efficient of this device is very low.
Task of the present invention is a kind of Hydrautic pulse generator of design, and its high-voltage pulse amplitude is improved, and improves hydraulic pressure digging efficient by improving flow converter.
The solution that the present invention proposes is, the hydropneumatic accumulator of Hydrautic pulse generator is installed on the intake pipe, and be communicated with clapp oscillator by first conduit, clapp oscillator is communicated with flow converter by second conduit, this second conduit is formed by connecting by the pipe of two sections different-diameters at least, the diameter that the front is one section is the twice of next one section diameter, makes current produce different pressure oscillation phase places.
In order to produce the current of different pressures phase of oscillation in Hydrautic pulse generator, main jet was preferably taked 1: 3 with the ratio of draining orifice size.
Second conduit that adopts at least the pipe by two sections different-diameters to be connected into can be put aside the water of the high phase of oscillation of a certain amount of high pressure, and quickens the water of low phase of oscillation when water flows through the draining nozzle once more.The employing draining orifice size that is three times in the main jet diameter depends on whether be necessary water velocity is added near possible maximum value.
Advantage of the present invention will be below embodiment and accompanying drawing in illustrated.There is Hydrautic pulse generator section of the present invention always to scheme in the accompanying drawing.
Hydrautic pulse generator comprises hydropneumatic accumulator 2, and it is installed on the intake pipe 1, and is communicated with clapp oscillator 4 with first conduit 3.Clapp oscillator 4 is connected by second conduit 5 and flow converter 6.Flow converter 6 has main jet 7 and draining nozzle 8.Second conduit 5 is connected into by two sections pipes 9 and 10, and 9 sections diameters are the twice of 10 sections diameters.The diameter ratio of main jet 7 and draining nozzle 8 is 1: 3.Clapp oscillator 4 comprises the motion control mechanism 12 and the draining nozzle 13 of a box type piston 11, box type piston 11.Flow converter 6 is installed in the end of pipe 10, in its housing 14 piston seat 15 and 16 is arranged, and forms chamber 17 and seat back cavity 18 and 19 between seat.In the present back cavity 18 and 19 piston 20 and 21 are arranged, connect with connecting rod 22 each other.Piston back cavity 23 and 24 lays respectively at piston 21 and 20 outsides.Piston back cavity 23 usefulness connecting tubes 25 are communicated with seat back cavity 19.Piston back cavity 24 is connected with intake pipe 1.
The Hydrautic pulse generator working principle is as follows:
After the water source of intake pipe 1 was opened, Hydrautic pulse generator entered self oscillating regime, all comprised high and low two phase of oscillation each period of vibration.After the motion control mechanism 12 of box type piston 11 is pushed the box type piston 11 of clapp oscillator 4 to 9 sections of second conduit 5, produce low phase of oscillation.This moment, the hydraulic pressure of 5 in first conduit 3 and second conduit was got in touch interruption.Conduit 3 is connected with the draining nozzle 13 of clapp oscillator 4.Pressure in clapp oscillator 4 districts reduces.Low-pressure wave self oscillation generator 4 is transmitted to hydropneumatic accumulator 2 along conduit 3, is ripple near intake pressure and reflection comes thus.Usually between clapp oscillator 4 and hydropneumatic accumulator 2, be low phase of oscillation, under the effect of the motion control mechanism 12 of box type piston 11, propagate 3-4 low-pressure wave.When each reflected wave arrived clapp oscillator 4, the pressure in water velocity in the conduit 3 and clapp oscillator 4 zones just rose to.When on the box type piston 11 and the pressure difference in box type piston 11 motion control mechanisms 12 when being enough to promote piston, piston conductive pipe 3 moves.Draining nozzle 13 is closed, hydraulic communication between the conduit 3 and 5.The low pressure phase oscillations finish, and the current in the conduit 3 begin the high pressure phase vibration.
When the little draining nozzle 13 of resistance to water-flow was closed, the pressure in clapp oscillator 4 zones raise, and is higher than intake pressure gradually.This high pressure wave is propagated to hydropneumatic accumulator 2 along conduit 3, and along 9 sections biographies of second conduit 5 joint to 9 and 10 sections.When 9 and 10 segment length of the conduit 3 and second conduit 5 equated, ripple was propagated along conduit 3 and is arrived hydropneumatic accumulators 2, and propagated the joint that arrives 9 sections and 10 sections along second conduit 5.Produce certain deceleration owing to 9 sections of second conduit 5 with 10 sections different current that make of diameter, thereby make pressure continue to increase.This pressure wave is propagated to both direction from 9 sections with 10 sections joints: along 9 sections to clapp oscillator 4, along 10 sections to flow converter 6.Because of 9 sections different with 10 sections diameters, 10 sections water velocity is greater than 9 sections water velocity, and the current of generation different pressures phase oscillations.
When arriving clapp oscillator 4 from the reflected wave of hydropneumatic accumulator 2, box type piston 11 moves to second conduit 5 under the effect of its motion control mechanism 12, and draining nozzle 13 is opened, and conduit 3 and 5 s' current interrupt.High pressure phase vibration in the conduit 3 finishes, and the low pressure phase oscillations begin.Reach clapp oscillator 4 from the ripple of 9 sections and 10 sections joint reflections in a direction, because the contact of the hydraulic pressure between the conduit 3 and 5 (current) is interrupted at this moment, it " is rebuffed " at this; Arrive flow converter 6 in another direction.Produce low-pressure wave 9 sections starting points this moment, promptly when the water along 9 sections of second conduit 5 and 10 sections flows to flow converter 6 together, from the current interruption of conduit 3.In the zone of flow converter 6, piston 20 and 21 and connecting rod 22 move to piston back cavity 24 directions.Piston 21 props up piston seat 15.Draining nozzle 8 is closed, and main jet 7 is opened.Pressure before the main jet 7 reaches maximum value.Piston 20 and 21 and the reason that moves of connecting rod 22 be, arrive flow converter 6 from the reflected wave of the pressure that raises of 9 sections and 10 sections joints, act on piston 20 by chamber between seat 17, its pressure is much higher than the intake pressure in the piston back cavity 24.Communicate because of connecting tube 25 makes two chamber current, the pressure that acts on the piston 21 from seat back cavity 19 and piston back cavity 23 equates.Because draining nozzle 8 is closed (rill resistance nozzle), main jet 7 is opened (big flow resistance nozzle, its diameter is three times of draining nozzle 8 diameters), and pressure rises to maximum value.
Penetrate the high-voltage pulse flow of the full swing width of cloth this moment to broken object from main jet 7.
At this moment, 10 of second conduit 5 sections beginning high pressure phases vibration.Thus the pressure maximum of pressure and main jet 7 diameters decision and the ripple of flow velocity along 10 sections pass to 9 sections with 10 sections joints, here with from the clapp oscillator 4(end) low pressure zero-speed reflected wave meet.The synthetic result of two ripples makes the water flow pressure of joint be reduced to a little higher than intake pressure, and water (flow) direction changes simultaneously.Water from zone of high pressure (10 sections) flows into low pressure area (9 sections).Like this, spread out of a new ripple from 9 sections with 10 sections joints, its water velocity is a negative value, a little higher than intake pressure of pressure.Reflect first low-pressure wave from hydropneumatic accumulator 2 this moment.When this ripple arrives clapp oscillator 4, and along conduit 3 when hydropneumatic accumulator 2 transmits second low-pressure wave, from 9 sections with 10 sections joints along 9 sections to the clapp oscillator 4(end) and transmit the negative velocity ripple to flow converter 6 along 10 sections.Under first kind of situation,, make pressure obtain to a certain degree growth because current " are rebuffed " at blind pass.The zero velocity ripple of this pressure passes to 9 sections and 10 sections joints.Under second kind of situation,, make the pressure in flow converter 6 zones drop to atmospheric pressure because the ripple that transmits is negative flow velocity.This just makes under the intake pressure effect in piston back cavity 24 of piston 20,21 and connecting rod 22 and moves to piston back cavity 23 directions.Propagate the low positive speed of an atmospheric pressure or the ripple of negative velocity (parameter that depend on 9 section and 10 section) along 9 sections this moment.This just makes the high pressure phase vibration in 10 sections finish, the phase oscillations of beginning low pressure.Be noted that first low-pressure wave in the conduit 3 this moment have finished first total travel of low pressure phase, promptly the phase of oscillation in two conduits is approaching after through the two-pass time that equals the shock wave conduit 3 in.When second ripple of low pressure phase oscillations arrived hydropneumatic accumulator 2 in the conduit 3, second zero velocity ripple passed to 9 sections and 10 sections joints again along 9 sections.First barometric pressure ripple of the current of low pressure phase oscillations also transmits from flow converter 6 again in 10 sections.The result makes 9 sections current with 10 sections joints regain positive speed, buy Φ and try to gain ǎ and spread out of the barometric pressure Reeb for 0 section because of spreading out of the smile that censures from 9 sections, and current begin from second conduit 59 sections to 10 sections injections, and pressure then reaches the value of a little higher than intake pressure once more.Ripple with these parameters passes to clapp oscillator 4 and flow converter 6 again from 9 sections with 10 sections joints.When arriving flow converter 6, before the draining nozzle 8 pressure build-up to being higher than barometric pressure, thereby improved the water velocity of 10 sections ends.At this moment, transmit shock wave from two aspects to clapp oscillator 4: one reflects (second low pressure phase reflected wave) by hydropneumatic accumulator 2 and transmits along conduit 3; Another transmits along 9 sections from 9 sections with 10 sections joints.If the motion control mechanism 12 of box type piston 11 is adjusted to the operating mode that 2 ripples can only be arranged in conduit 3 low phase places, then box type piston 11 conductive pipe 3 directions of clapp oscillator 4 move.Draining nozzle 13 is closed, and recovers to be higher than the pressure of intake pressure in the conduit 3 again, and the high pressure phase place begins.Pressure build-up in clapp oscillator 4 zones is to the value that substantially exceeds intake pressure.New high pressure wave will 3 and 5 propagation from clapp oscillator 4 along conduit.When this ripple reaches hydropneumatic accumulator 2 and reflects in conduit 3, be higher than atmospheric positive fast ripple in 9 sections, reach 9 sections with 10 sections tie point, and meet along 10 sections phases of wave that reflect earlier herein with from draining nozzle 8.The result spreads out of new ripple along 9 sections with 10 sections from 9 sections with 10 sections joints.Under first kind of situation, this ripple " is rebuffed " near clapp oscillator 4 time, thus the time pass to along conduit 3 from the ripple of hydropneumatic accumulator 2 reflection, the high phase place of pressure oscillation wherein finishes.Under second kind of situation, when the new ripple of this high pressure arrived draining nozzle 8, water velocity increased more, and the pressure of ripple descends, but still was much higher than original pressure (usually above atmospheric pressure) in flow converter 6 zones.The result make piston 20 and 21 and connecting rod 22 move to piston back cavity 24.Piston 20 leaves piston seat 16, and piston 21 arrives at piston seat 15.Draining nozzle 8 is closed, and main jet 7 is opened.This is a significant slowdown current, and pressure rises sharply to maximum value.The high phase place of flow oscillation new in 9 sections begins.Current under pressure maximum from the broken object of main jet 7 directives.This working procedure constantly repeats, and Hydrautic pulse generator enters stable self oscillating regime.
If the low pressure wave number in the conduit 3 (in low phase place) is more than 2, said process will proceed to these ripples and not take place till the interruption of current continuity in " being rebuffed " with 10 sections joints from 9 sections.
Water velocity by draining nozzle 8 when low phase place wave number increases can increase, and the pressure before the main jet 7 also can rise.
So, just can accumulate the water of a certain amount of high pressure phase vibration, and make current obtain replenishing acceleration in low phase of oscillation by draining nozzle 8 by two sections pipes 9 and 10 second conduits 5 that are connected into that diameter is different.At this moment, 9 sections diameters are answered 2 times to 10 sections diameters.When 9 sections diameters and 10 sections diameter ratios are not 2, but less than 2 o'clock, high pressure water storage capacity deficiency then.9 and 10 sections calibers are got such ratio under the low pressure phase oscillations, and main jet 7 and draining nozzle 8 diameters ratio is for equaling 1: 3 in addition, and the acceleration of water will not reach most probable velocity, have influence on the high pressure amplitude of pulse the most at last, and amplitude is reduced.In another case, promptly work as 9 sections diameters and 10 sections diameter ratios and be not equal to 2, and greater than 2 o'clock, second conduit 5 will be put aside a large amount of high pressure waters.Water in the low pressure phase place can not accelerate to most probable velocity.At this moment, 10 sections are descended by internal pressure, and the high pressure amplitude of pulse descends.Therefore, have only 9 and 10 sections of second conduit 5 to keep above-mentioned diameter ratio, could guarantee to accumulate the necessary high pressure phase place water yield, and can in the low pressure phase of oscillation, guarantee current are accelerated to most probable velocity, and obtain maximum high voltage pulse amplitude.
Whether whether the diameter of draining nozzle 8 is selected for use is three times in main jet 7 diameters, and this depends on following factor: one, be necessary the water in second conduit 5 is accelerated to most probable velocity; Two, the reliability of flow converter 6 work.If the two diameter ratio is greater than 3, then current accelerate to and surpass peaked speed, and this moment, flow converter 6 area inner pressures sharply descended.This just can not guarantee the motion of piston 20,21 and connecting rod 22 and the opening of main jet 7.In another case, the two diameter ratio is less than 3, and it is not high enough that then current quicken back speed, and the high pressure amplitude of pulse when main jet 7 is opened reduces.
Therefore, the Hydrautic pulse generator parameter of having only the present invention to propose can guarantee to obtain maximum high voltage pulse amplitude by increasing the Hydrautic pulse generator flow, thereby improves the efficient of hydraulic pressure digging.
The said structure of proposition of the present invention can be by increasing the high voltage pulse amplitude and increasing the efficient that water flow guarantees to improve fractured rock.
Claims (2)
1, a kind of Hydrautic pulse generator comprises the hydropneumatic accumulator (2) that is installed on the intake pipe (1).Accumulator is connected with clapp oscillator (4) by first conduit (3), and clapp oscillator then is connected with flow converter (6) by second conduit (5).Flow converter comprises main jet (7) and draining nozzle (8).It is characterized by: second conduit (5) is connected into by the pipe (9,10) of two sections different-diameters at least, and the diameter of the last period (9) is the twice of back one section (10) diameter, to produce different current of pressing phase oscillations.
2, the described Hydrautic pulse generator of claim 1 is characterized by: main jet (7) is 1: 3 with draining nozzle (8) diameter ratio, to produce different current of pressing phase oscillations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106590 CN1013292B (en) | 1987-09-26 | 1987-09-26 | Hydrautic pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106590 CN1013292B (en) | 1987-09-26 | 1987-09-26 | Hydrautic pulse generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032384A true CN1032384A (en) | 1989-04-12 |
| CN1013292B CN1013292B (en) | 1991-07-24 |
Family
ID=4815771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106590 Expired CN1013292B (en) | 1987-09-26 | 1987-09-26 | Hydrautic pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013292B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307286C (en) * | 2001-06-13 | 2007-03-28 | Abb拉默斯环球有限公司 | Pyrolysis heater with paired burner zoned firing system |
-
1987
- 1987-09-26 CN CN 87106590 patent/CN1013292B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307286C (en) * | 2001-06-13 | 2007-03-28 | Abb拉默斯环球有限公司 | Pyrolysis heater with paired burner zoned firing system |
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| Publication number | Publication date |
|---|---|
| CN1013292B (en) | 1991-07-24 |
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| GR02 | Examined patent application | ||
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| WD01 | Invention patent application deemed withdrawn after publication |