CN1051894A - Free piston mud pump carrying method and device - Google Patents
Free piston mud pump carrying method and device Download PDFInfo
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- CN1051894A CN1051894A CN 89104133 CN89104133A CN1051894A CN 1051894 A CN1051894 A CN 1051894A CN 89104133 CN89104133 CN 89104133 CN 89104133 A CN89104133 A CN 89104133A CN 1051894 A CN1051894 A CN 1051894A
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- pressure
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- controller
- free piston
- exchange tube
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Abstract
The invention belongs to the specialized equipment of a kind of slurry conveyed, smalls, ore in sand form, coal ash slag.Mainly by controller, compositions such as pressure-exchange tube, centrifugal pump, fuel tank and vacuum pump.It is used the mode of movement of oil isolation pump and without mechanical piston, makes highly pressurised liquid and transported material positive energy exchange in the pressure-exchange tube in phase by controller.Integrated application electronics, electric, hydraulic pressure, the chronic disease of dashing cylinder, valve hammer and running oil of oil isolation pump emerged in operation has been avoided in the effect of machinery.The maximum particle size that allows transported material is ten times of oil isolation pump, is that ducting is high-lift, the reliable apparatus of high concentration medium.
Description
The present invention relates to a kind of carrying method and device thereof of free piston mud pump.Particularly a kind of ducting is high-lift, the specialized equipment of high concentration slurry, ore in sand form, smalls, coal ash slag etc.
The ducting of existing high-lift, the high concentration slurry of China is mainly by oil isolation pump.Introduced by " engineering goods catalogue under unified central planning " that one nine eight O of first Mechanical and Electrical Equipment Company publish October: slurry pump with oil isolation is the mud pump of just trial-produceing successfully in recent years." the engineering goods catalogue " that China Machine Press published in 1984 introduced: the reciprocating oil separate pump, it is big to have discharge pressure, be used for remote ducting, but the medium that is transferred is strict, granularity needs less than 1 millimeter, weight concentration is less than 60%, and temperature is below 100 degree, and limitation is bigger.
Existing oil isolation pump belongs to the electric reciprocating pump that flow is a definite value.When it is in jig frequency frequency height, when the state that feed flow is big is worked down,, meet the bite of solid dielectric in the mud again because the effect of inertia of piston, automatic valve core and mud is bigger, must aggravate the hysteresis that automatic valve opens and closes; Add the reasons such as influence of aspirated air, often cause local pressure to change suddenly, so that occur making its maintenance frequent towards cylinder, valve hammer or race wet goods chronic disease.
The present invention be to solve pipeline coal transporting equipment, the carrying method and the device of a kind of high-lift, the high concentration slurry of creating at the prior art defective.
The present invention can realize with measure by the following method.The free piston mud pump pipeline transporter partly is made up of controller, pressure-exchange tube, centrifugal pump, fuel tank and vacuum pump etc.It is characterized by: pressure-exchange tube cylindrical shell is a vertical and cylindrical, be welded with flanged (FLGD) short tube on its end socket, successively with controller in valve and high pressure fuel pipe, high-pressure water pipe, the low pressure water pipe, low pressure pipe is connected, controller is by oily changing phase valve, triple duty valve, servomotor, electromagnetic slide valve, the revolution coupler, rocking bars etc. are partly formed, triple duty valve is by valve gap, valve rod, spool, composition such as valve pocket and valve body has a left side in the valve body, in, right three eccentric ring casings advance by short tube flange and fluid, outlet conduit connects mutually, valve pocket is embedded in the indoor circle of eccentric ring, puts to be drilled with many holes or groove.
The free piston mud pump applied pipeline transportation method is to carry out energy exchange by centrifugal pump high-pressure work liquid that produces and the medium that is transferred in the pressure-exchange tube, operates by controller.It is characterized by high pressure oil by pipeline A control of access device, enter the pressure-exchange tube then, return controller after releasing energy, D gets back to fuel tank through pipeline, from the mud concentration basin or join mud that stock tank attracts through pipeline C control of access device, enter the pressure-exchange tube then, obtain to return controller behind the energy, B outwards carries through pipeline; Free piston is to be formed by the depressed area of mud and oil or mud in the pressure-exchange tube and the dividing range between the settling section.
Pass to triple duty valve by servomotor, the power of spool, can make the existing crank motion of relative motion that produces between the spool of triple duty valve and the valve body again gyroscopic movement be arranged and make the solid dielectric that is transferred be subjected to wedge, warpage, shearing, rubbing and extruding combined action power and being split, and the vacuum pump that can form negative pressure is housed on fuel tank is used for improving feed conditions.The pressure-exchange tube is one group with two, and controller is measured the position of free piston in cylinder by electric contact or alternate manner, and switch valve makes free piston arrive control position.
Fig. 1 is a method scheme drawing of the present invention;
Fig. 2 is major part of the present invention and effect scheme drawing thereof;
Fig. 3 is a controller fundamental diagram of the present invention;
Fig. 4 is electrician mapping of the present invention;
Fig. 5 is a triple duty valve structural representation of the present invention;
According to accompanying drawing the present invention is done detailed explanation below:
Cylinder among Fig. 1 is represented pressure-exchange tube (to call cylinder in the following text), physical property according to liquid, put two kinds of mutually exclusive again liquid of severe difference a container, under the effect of gravitational field, can produce natural layering, heavily go up light down, the horizontal dividing range of middle formation, the present invention with this oil water demarcation face as free piston, replace the mechanical piston in the reciprocating pump, when the liquid in the container is disturbed (part flows to or flows out), dividing range is not gone to pot, and keep horizontality.Diagrammatic sketch 1 cylinder internal memory is drained the oil and water, and the dividing range between the profit is p～p; A, B, four valves of C, D are housed on the cylinder, successively with high pressure fuel pipe, high-pressure water pipe, the low pressure water pipe, low pressure pipe connects; The pressure of high pressure fuel pipe is higher than the pressure of high-pressure water pipe, the pressure of high-pressure water pipe is far above the pressure of low pressure water pipe, the pressure of low pressure water pipe is higher than the pressure of low pressure pipe, when closing C, D valve, open A, B valve, then high pressure oil enters cylinder by valve A, and the cylinder internal pressure is increased, the water of cylinder bottom will be squeezed into high-pressure water pipe dividing range p～p also along with corresponding decline (a) referring to Fig. 1.When dividing range p～p drops to lower limit 1～1 position, valve A, B SELF CL, C, D self-opening, low-pressure water enters cylinder through valve C, and the oil on cylinder top flows into low pressure pipe, the corresponding rising of dividing range p～p (referring to Fig. 1 b) by valve D, when dividing range p～p is raised to upper limit h～h position, valve C, D be SELF CL again, and A, B self-opening so repeat front actuation cycle work.
In sum, just in time occur in the process of dividing range p～p up-and-down movement because oil and current influent stream go out the effect of cylinder, so claim that dividing range p～p is a free piston, the device that this task finished in title is the free piston pipeline transporter.
Because different mud has different waterpower settling characters, as long as the rising or falling speed of control mud in cylinder, make the mud that enters cylinder be in metastable natural subsidence state, then one section settling section will appear in the mud upper strata, dividing range between mud depressed area and the settling section, also can be used as free piston, the power fluid on this free piston top can also need not oil and water for it.
Fig. 2 is the major part and the effect thereof of free piston mud pump of the present invention, and free piston mud pump is mainly by controller (1), pressure-exchange tube (2), and centrifugal pump (3), fuel tank (4) and vacuum pump parts such as (5) are formed.The high pressure oil that is produced by centrifugal pump passes through pipeline A
2The control of access device enters the pressure-exchange tube then, returns controller after releasing energy, through pipeline D
2Get back to fuel tank, from concentration basin or join mud that stock tank attracts through pipeline C
2The control of access device enters the pressure-exchange tube then, obtains to return controller behind the energy, through pipeline B
2Outwards carry.
The effect of pressure-exchange tube is to guarantee two-phase fluid positive energy exchange reposefully in cylinder, its physical dimension depends primarily on the waterpower settling character of the working flow and the pumped (conveying) medium of free piston mud pump, cylinder is the vertical and cylindrical pressure exchanging container, is welded with flanged (FLGD) short tube on its end socket and is connected with valve in the controller.For reducing the area of contact of oil and water, stablize the interfacial disturbance of two-phase fluid, a georama is set in cylinder, its external diameter is less than barrel bore, the unit weight of ball can be adjusted by the cock on ball increase and decrease inner stuffing, remains on the dividing range between the two-phase fluid with the position that guarantees ball.
Vacuum pump is contained on the fuel tank, its effect mainly is to form negative pressure in fuel tank, so that from concentration basin or join the mud that stock tank attracts and can directly enter the pressure-exchange tube by controller, and the feeding supercharging equipment is not set in addition, to reduce the fault of feed system, improve feed conditions.
With the high pressure oil that centrifugal pump produces, mainly as the energy that carries out energy exchange in the pressure-exchange tube, the logical oil part of fuel tank, centrifugal pump and controller and pressure-exchange tube is formed the closed type circulation jointly.
Fig. 3 is a control device scheme drawing of the present invention, and the cylinder of and arranged on left and right sides is the pressure-exchange tube among the figure, and the residing position of free piston is represented at the ball center in the cylinder.Controller is by left side oily changing phase valve (6) among the figure, right side oil changing phase valve 7, left side triple duty valve (8), right side triple duty valve (9), servomotor (10) electromagnetic slide valve (11), revolution coupler (12), (13) and rocking bar compositions such as (14).A
3, B
3, C
3, D
3Expression connects high pressure fuel pipe, high-pressure water pipe, low pressure water pipe, low pressure pipe successively.E represents to attract the oily oil inlet of control from geared oil pump or pressure oil pipe, and F represents to control the oil return pipe of oil, Q
1, Q
2The expression magnet coil.
As magnet coil Q
1(Q when charged
2Outage), the spool of electromagnetic slide valve moves on to the left side, so enter the chamber, left side of servomotor through electromagnetic slide valve from the next control oil of E pipe, promoting the servomotor piston moves right, the indoor control oil in servomotor right side then enters oil return pipe F through electromagnetic slide valve right-hand member oil discharge outlet, till servomotor piston arrives right-hand member terminal point.When its servomotor piston moved right, the coupler by two ends moved right the spool of and arranged on left and right sides triple duty valve and the N end of connecting rod thereupon, and the M end of connecting rod and the spool of the oily changing phase valve of and arranged on left and right sides then are moved to the left.From A
3The high pressure oil that pipe comes enters cylinder upper end, left side through left side oil changing phase valve, and the cylinder internal pressure is raise, and the low-pressure water of free piston bottom obtains energy in the cylinder becomes high pressure water, and enters pipeline B by the left side triple duty valve
3Outwards carry, the free piston in the cylinder of left side then moves down gradually.Meanwhile, because being moved to the left of right side oil changing phase valve spool and moving right of right side triple duty valve spool add D
3Manage direct UNICOM fuel tank, and fuel tank is in negative pressure state, so the oil on cylinder top, right side flows into D by right side oil changing phase valve
3Pipe, and from C
3The low-pressure water that pipe comes then enters the cylinder bottom through the right side triple duty valve.Free piston in the cylinder of right side then moves up gradually.Because it is closed cycle that the oily changing phase valve of fuel tank, centrifugal pump and controller and pressure-exchange tube are formed oil circuit, so magnet coil Q
1Group effect after charged is that the low-pressure water via controller enters the right side cylinder, and high pressure water is outwards exported by left side cylinder via controller.
Magnet coil Q
2(Q when charged
1Outage), electromagnetic slide valve, the servomotor piston, the direction of action of left and right side oil changing phase valve and triple duty valve spool is just in time and Q
1Situation after coil is charged is opposite, and at this moment high pressure oil enters the right side cylinder, and the free piston in the cylinder of right side descends gradually, and low-pressure water enters the left side cylinder, and the free piston in the cylinder of left side rises gradually, so Q
2Group effect after charged is that the low-pressure water via controller enters the left side cylinder, and high pressure water is outwards exported by right side cylinder via controller.
The distich part that revolution coupler (12), (13) are connected does not allow relative crank motion, has relative gyroscopic movement again, indispensable part when being servomotor connection triple duty valve.
Press the principle of work of free piston mud pump, the valve with the upper and lower interface of pressure-exchange tube connects is in operation and back and forth switches, if the fluid of turnover cylinder only is You Heshui, then can use common switch valve.In fact the fluid that enters cylinder contains unhydrolyzed solid dielectric, and granularity is big.Solid dielectric that ought be bigger in handoff procedure, just in time enter a valve passage part or the part of from valve passage, coming out when just running into spool in the motion, spool just may be by bite, but as long as spool has enough strength to overcome resistance, the solid dielectric of splitting bite, spool can continue to finish its commutation campaign.Triple duty valve is just keying, the Special valve that three kinds of functions of commutation and splitting solid dielectric combine, and wherein the splitting solid dielectric is a main characteristics.
Test results shows: only the direction along valve core movement applies the solid dielectric of application force in the bite spool, splitting solid dielectric most effectively, have only along the direction of valve core movement and apply active force, when the edge applies auxiliary force perpendicular to the valve core movement direction again simultaneously, the solid dielectric of splitting bite spool most effectively, even solid dielectric both had been subjected to wedge, warpage, shearing force, is subjected to combined action power such as rubbing and extruding again and is split.
According to the principle of work of controller and the characteristics of operation program, only need alternately drop into magnet coil Q
1, Q
2Power supply, just can make the alternation principle that the mode of operation of left and right side cylinder input and output material hockets, controls magnet coil be: the free piston in the cylinder of left side rises to upper limit position 1J, after free piston in the cylinder of right side drops to lower position 4J again simultaneously, just begin switch valve, make the 2J that drops in left side, the right side rise to 3J, switch valve so alternately switches again.Because the pressure-exchange tube is vertical cylinder, so free piston forms the specific well-bucket of this free piston mud pump work system of fetching water as a pair of well-bucket especially one on the other at the track of left and right side cylinder.
Measuring free piston a kind of short-cut method of upper and lower limit position in cylinder is to adopt the upper and lower limit control position in cylinder that the electric contact electronic measuring device is set.
Fig. 4 is the electrical schematic diagram of controller, K among the figure
1, K
2For dropping into button, 1J
1, 2J
2(or 3J
1, 4J
2) representative is installed in the contact of relay of the electric contact electronic measuring device of lateral pressure switching cylinder upper and lower limit position, a left side (or right), 1Z, 2Z are intermediate relay.Q
1, Q
2Be the magnet coil of electromagnetic slide valve, press K arbitrarily
1Or K
2All can make controller work.
In service at free piston mud pump, when the free piston in the cylinder during not in the upper and lower limit position, the electric contact of left and right cylinder upper limit position all is immersed in the oil, the electric contact of lower position is all under water, this moment, relay 1J ', the 3J ' of electric contact electronic measuring device of upper limit position all can not conducting, so open contact 1J
1, 3J
1Still be in off-state, relay 2J, the 4J of the electric contact electronic measuring device of lower position be all conductings then, so normally closed contact 2J
2, 4J
2Also be in off-state.
" free piston " in the cylinder of left side rises to upper limit position, and when making the electric contact of upper limit position immerse in the water, electronic measuring device is got in touch the relay 1J conducting of this position, makes open contact 1J
1Closure, simultaneously " free piston " in the cylinder of right side drops to the lower position, and the electric contact of lower position is immersed in the oil, ends at the relay 4J of the electronic measuring device of this position, makes normally closed contact 4J
2Closure resets.Intermediate relay 1Z and magnet coil Q
1Charged in succession, make controller carry out paraphase and switch." free piston " in the cylinder of left side begins to descend, and the rising on right side makes 2J in left side lower limit electric contact immersion oil
2The closure that resets, right side upper limit electric contact immerse in the water and make 3J
1After the closure, make intermediate relay 2Z and coil Q again
2Charged, controller carries out paraphase again and switches, and so forth circulation.
Fig. 5 is the structural representation of reciprocating type triple duty valve, and it is made up of valve gap (15) valve rod (16), spool (17), valve pocket (18) and valve body (19) etc.Three the eccentric ring casings in left, center, right are arranged in the valve body, link by short tube flange and fluid import and export pipeline, valve pocket is embedded in the indoor circle of eccentric ring, put and be drilled with many holes or have gutter channel, fluid in each ring casing has only by these holes or gutter channel, just can communicate with each other, the fluid that is transferred flows to, flows out cylinder all must pass through these passages.Move back and forth valve rod middle ring casing is communicated with left chamber respectively, block, perhaps communicate, block with left chamber, thereby realize the commutation function with the right ventricle with the right ventricle.Valve rod is driven by servomotor, and is mainly reciprocating, but derive from local gyroscopic movement or swing arranged.In commutation process, if some Jiao Da De Cakes grain comes out a part (or access passage part) when just running into the spool in the motion just from passage, because valve rod is in motion process, can obtain enough power from servomotor and remove to overcome resistance, and spool is attended by certain revolution action again in the reciprocating while, so can make the solid dielectric of bite spool be subjected to wedge, combined action power such as warpage, shearing, rubbing and extruding and being split continues to finish its commutation campaign.
The present invention compared with prior art has following advantage:
1, this free-piston slush pump carries maximum granularity that solid dielectric allows generally in 10 millimeter, and is bigger 10 times than oil isolation pump. Be used for can directly carrying when pipeline is carried coal granularity at the slurry of the smalls below 13 millimeters, this is the various oil isolation slush pump technical indicator that also is beyond one's reach so far. Increasing another effect that allows the conveying granularity is power consumption and the metal consumption that is used for broken or levigate solid dielectric before having reduced to carry, and has improved the comprehensive benefit of whole conveying process.
2, the present invention organically combines the effect of electronics, electric, hydraulic pressure, machinery, without mechanical piston, the advantage that existing reciprocating pump has, got rid of again the disadvantage of using mechanical piston to bring, overcome the chronic disease of rushing cylinder, valve hammer and running oil of oil isolation pump appearance in service, unfailing performance improves.
3, utilize the transformation of controller, in feed system, introduce negative pressure work, be conducive to replace feeding supercharging equipment, improved feed conditions.
Claims (3)
1, a kind of free piston mud pump pipeline transporter and method thereof, by controller (1), pressure-exchange tube (2), centrifugal pump (3), fuel tank (4) and vacuum pump (5) etc. are formed feedway, it is characterized in that:
A, pressure-exchange tube (2) cylindrical shell are vertical and cylindrical, are welded with flanged (FLGD) short tube on its end socket, successively with controller (1) in valve (A, B, C, D) and high pressure fuel pipe A
3, high-pressure water pipe B
3, low pressure water pipe C
3, low pressure pipe D
3Be connected;
B, controller (1), by oily changing phase valve (6,7), triple duty valve (8,9), servomotor (10), electromagnetic slide valve (11), revolution coupler (12,13), part such as rocking bar (14) is formed;
C, triple duty valve are by valve gap (15), valve rod (16), spool (17), valve pocket (18) and valve body compositions such as (19), have in the valve body in the left side, right three eccentric ring casings, be connected with fluid import and export pipeline by the short tube flange, valve pocket (18) is embedded in the indoor circle of eccentric ring, puts to be drilled with many holes or to have groove.
2, free piston mud pump applied pipeline transportation method as claimed in claim 1 is, carries out energy exchange by centrifugal pump high-pressure work liquid that produces and the medium that is transferred in the pressure-exchange tube, operates by controller, it is characterized in that:
A, energy exchange mode are: high pressure oil is by pipeline A
2Control of access device (1) enters pressure-exchange tube (2) then, returns controller (1) after releasing energy, through pipeline D
2Get back to fuel tank, from the mud concentration basin or join mud that stock tank attracts through pipeline C
2Control of access device (1) enters pressure-exchange tube (2) then and obtains to return controller behind the energy, through pipeline B
2Outwards carry;
B, free piston are formed by the depressed area of mud and oil or mud in the pressure-exchange tube and the dividing range between the settling section;
C, pass to the power of triple duty valve (8,9) spools (17) by servomotor, can make the existing crank motion of relative motion that produces between the spool (17) of triple duty valve and the valve body (19), again gyroscopic movement is arranged and make the solid dielectric that is transferred be subjected to wedge, warpage, shear, rubbing is split with extruding combined action power;
D, pressure-exchange tube are one group with two, and controller is measured the position of free piston in cylinder by electric contact or alternate manner, and switch valve makes free piston arrive control position.
3,, it is characterized by the vacuum pump (5) that can form negative pressure is housed on fuel tank (4) as claim 1,2 described free piston mud pump pipeline transporter and methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104133 CN1051894A (en) | 1989-11-24 | 1989-11-24 | Free piston mud pump carrying method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104133 CN1051894A (en) | 1989-11-24 | 1989-11-24 | Free piston mud pump carrying method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1051894A true CN1051894A (en) | 1991-06-05 |
Family
ID=4855453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89104133 Pending CN1051894A (en) | 1989-11-24 | 1989-11-24 | Free piston mud pump carrying method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1051894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156294A (en) * | 2015-08-21 | 2015-12-16 | 深圳智慧能源技术有限公司 | Free piston fracturing pump and fracturing equipment vehicle |
-
1989
- 1989-11-24 CN CN 89104133 patent/CN1051894A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156294A (en) * | 2015-08-21 | 2015-12-16 | 深圳智慧能源技术有限公司 | Free piston fracturing pump and fracturing equipment vehicle |
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