CN201013545Y - Reciprocating type plunger pump capable of conveying high-temperature, high pressure and grain medium - Google Patents
Reciprocating type plunger pump capable of conveying high-temperature, high pressure and grain medium Download PDFInfo
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- CN201013545Y CN201013545Y CNU2006200467575U CN200620046757U CN201013545Y CN 201013545 Y CN201013545 Y CN 201013545Y CN U2006200467575 U CNU2006200467575 U CN U2006200467575U CN 200620046757 U CN200620046757 U CN 200620046757U CN 201013545 Y CN201013545 Y CN 201013545Y
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Abstract
The utility model relates to a reciprocating plunger pump that can deliver high temperature and high pressure granular medium, which is applicable for delivering particles medium with higher solid weight ratio, particularly for coal slurry raw material delivery of coal liquefaction project. The structure includes a transmission section, a main pump outlet pipeline, a discharging voltage regulator, an inlet return pipeline, a main power end, a main pump fluid end, an injecting pump, a suction voltage regulator, a main pump inlet pipeline, an injecting pump coupler, a lubricating section, an injection pipeline, a washing pipeline, a sealing oil pipeline, a main pump coupler as well as an electrical instrument control system. The transmission section comprises a main motor and a reducer; the main motor is connected with the crankshaft of the main pump power end through the reducer and the main pump coupler. The support of the crankshaft is made in the structure of five bends and six supporting points, of which each bend has two supporting points; the other shaft end of the main pump power end is connected with the injection pump. The span of the support point is small with higher rigidity in order to make the operation of the main pump smooth and lubrication reliable in order to improve the entire service life, which can be operated reliably for a long time.
Description
Technical field
The utility model relates to a kind of reciprocating plunger pump, particularly a kind of reciprocating plunger pump of carrying high temperature, high pressure granule medium.The utility model is applicable to the granule medium that the conveying solid substance weight ratio is high, in particular for the conveying of the coal slurry raw material of coal liquefaction engineering.
Background technique
Coal liquefaction is to be liquid product by multiple reactions such as cracking, condensation, hydrogenation, dehydrogenation, desulfurization, foreign matterizations with the organic matter transformation of coal, its purpose obtains to utilize liquid hydrocarbon substitution oil and goods thereof, produces liquid fuel and Coal Chemical Industry products such as gasoline that motor uses, diesel oil.
Claim the direct liquefaction method method of hydrogenation after the first cracking in the coal liquefaction.
The coal in China reserves are at the forefront in the world, and 1,886 hundred million tons of the coal reserves that can directly utilize can be exploited more than 100 year by producing 1600000000 tons per year.And will reach 4.5 hundred million tons/year to the year two thousand twenty CNPC demand, China's oil is produced per year and is estimated to have only 200,000,000 tons when the time comes, to produce 2.5 hundred million tons of breach, now plan with coal system oil industry and fill up wherein 100,000,000 tons breach, 100,000,000 tons of measuring and calculating of the coal system of pressing oil, the direct method coal liquefaction will account for 50%, need a lot of large-scale coal slurry feedstock pump (about more than 300) of quantity, and about 2,300 ten thousand RMB of the large-scale coal slurry feedstock pump of the every cover of import.Therefore the advanced homemade coal slurry feedstock pump of exploitation, no matter be technical, the energy development to China has very big meaning economically.
The reciprocating plunger pump that is used for direct coal liquefaction is a kind of key equipment.The operating temperature of reciprocating plunger pump is max290 ℃, pressure max20.1Mpa, and coal slurry medium solid weight is than being max52%.The coal slurry feedstock pump is in when operation, has liquid state, gaseous state, solid-state three kinds of forms simultaneously as the coal of working medium, and has the characteristics of high abrasion and high corrosion, and its operating mode is abominable.In the coal liquefaction craft flow process of real connection, no stand by pump setting, entire pump need have very long Mean time to failure.Therefore developing the pump structure parts must adapt to various bad working environments.Wherein easily damaged parts all has the novel coal slurry feedstock pump in very high working life.
In the prior art, the residual oil pump of Zhenghai refinery limited company belongs to the reciprocating plunger pump that can carry high temperature, high pressure granule medium.This pump is Japan's day machine dress (Nikklso) product, and the main operating mode of this residual oil pump: working medium, technical oil+naphtha now are used for slag hitting oil, a small amount of pitch solid impurity particle is arranged, 186 ℃ of oil temperature, pressure 10.49Mpa.
The existing working principle of the reciprocating plunger pump of high temperature, high pressure granule medium of can carrying is: the driving type of pump is motor-retarder-main pump (bent axle)-flushingpump bent axle.When the bent axle of motor by retarder drive pump power end, through connecting rod, become rotatablely moving into linear reciprocating motion, power end crosshead connecting rod is connected with the fluid end plunger of pump.Along with the operation of pump power end, the plunger that drives fluid end is done the low pressure suction, and the conveying of medium is finished in the alternately continuous operation that high pressure is discharged.Yet, owing to carry granule medium, when plunger back and forth moves, can bring granule medium between plunger and the plunger seal into, make the very fast damage of plunger and plunger seal, working life is very short.Therefore, need the configuration flushingpump usually.Its objective is that the pressure medium (oil or water) that flushingpump is got injects the front end of main pump plunger and Sealing, form the pressured fluid barrier, granule medium can not be entered between the plunger and Sealing of main pump.
The existing structure of the reciprocating plunger pump of high temperature, high pressure granule medium of can carrying is:
1. main pump and flushingpump are treble ram pump, the crank pin of main pump and flushingpump bent axle, and the 180 ° of synchronous operations that misplace, i.e. flushingpump enters flushing synchronously during the plunger backhaul of main pump.
2. sealed letter (the letter body of parts such as plunger and plunger seal and guide sleeve promptly is installed) is gone up coupled columns and is plugged with flushing, two loop structures of cooling and lubricating, wash and inject oily medium, plunger is lowered the temperature, lubricated by the cooling and lubricating loop containing the separation of small quantities of particles medium residual oil and plunger packing.
3. the pump housing is connected compactness with sealed letter, and promptly distance is near between the plunger cavity of sealed letter and the pump housing medium active chamber, is suitable for the residual oil of beating the small quantities of particles medium.
4. reach as high as 260 ℃ owing to oily temperature, so the truss of thermolysis is arranged between the support of the pump housing and power end.
The said structure reciprocating plunger pump is applicable to 200 ℃ of left and right sides temperature and the residual oil medium of small quantities of particles is only arranged still, if be used for bad working environments such as coal slurry raw material, following shortcomings and deficiencies are arranged obviously:
1. as being used for beating the high coal slurry of concentration weight ratio, be that distance is near between interior medium active chamber of the pump housing and the sealed letter place plunger cavity, advance, liquid discharging valve when work, interior upper and lower the floating of working medium of the pump housing mixed easily with the flushing injection is oily, granule medium enters the plunger seal chamber with injecting oil easily once mixing, and influences the life-span of plunger and stuffing box packing.
2.Nikklso what the cooling and lubricating loop of the sealed letter of residual oil pump was used is that general machine oil can cool off and Castor Oil plunger.And according to the requirement of technology, the flushing that the coal slurry feedstock pump is selected, inject that oil viscosity is little, its greasy property is not as machine oil, for the power of reducing friction, needs to increase by one road seal lubrication to improve the life-span of plunger and sealing when plunger moves continuously.
3.Nikklso pump is a treble ram pump, to compare pressure surge big with five-plunger pump, five-plunger pump pressure surge rate is 1/3 of three plungers, therefore no matter be the stable working or the pressure surge rate of pump power end, five plungers all are better than three plungers greatly, pulsation all has the pump of requirement for inlet and outlet pressure, obviously should select five plunger types for use.
4.Nikklso the inlet pipeline of pump is the blind hole of only import but no export, promptly working medium can not continuous-flow, and this structural feature makes the fouling easily in this runner of pump work medium, stops up the normal operation that inlet pipeline influences pump.
Therefore its structure of Nikklso pump has its points of course, but as being used for the operating mode that coal becomes the various complexity of oily flow process coal slurry feedstock pump, really has shortcomings and deficiencies, and this need improve and innovate.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of reciprocating plunger pump of carrying high temperature, high pressure granule medium that adapts to.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows, a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium comprises drive part 1, main pump export pipeline 2, discharge voltage stabilizer 3, import loop pipe 4, main pump power end 5, main pump fluid end 6, injection pump 7, sucks voltage stabilizer 8, main pump inlet ductwork 9, injection pump coupling 10, lubricated part 11, filling line 12, flushing line 13, sealing oil pipeline 14, main pump coupling 15 and electric meter control system 16; It is characterized in that: described drive part 1 is made of main motor 1-1 and retarder 1-2, and described main motor 1-1 connects with the bent axle 5-1 of main pump power end 5 by retarder 1-2 and main pump coupling 15, and main pump power end 5 another shaft 5-2 end connects injection pump 7; The crank pin of bent axle 5-1 connects connecting rod 5-11, and connecting rod 5-11 is connected with crosshead 5-9, and crosshead 5-9 is connected with intermediate bar 5-6, and intermediate bar 5-6 is connected with the plunger 6-1-2 of main pump fluid end 6; The structure of six fulcrums is turned in the supporting employing five of described bent axle 5-1, and promptly each has turned two fulcrums.
Described inlet ductwork 9, suction voltage stabilizer 8, main pump fluid end 6, import reflow pipe 4, discharge voltage stabilizer 3 and main pump export pipeline 2 constitute medium overcurrent parts; And connect by inlet ductwork 9, suction voltage stabilizer 8, main pump fluid end 6, import reflow pipe 4, discharge voltage stabilizer 3 pipes and road main pump export pipeline 2 successively.
Described main pump fluid end 6 is made of sealed letter 6-1, liquid discharging valve 6-2, high pressure water-collecting machine 6-3, pump housing 6-4, feed liquor valve 6-5, low pressure water-collecting machine 6-6 and medium transport conduit 6-7; The cylindrical of the back sealed letter body 6-1-1 of described sealed letter 6-1 is positioned in the positioning hole 5-15 of sealed letter of support, and 5-16 compresses with gland, described before sealed letter body 6-1-11 be connected with pump housing 6-4 by flange; Described liquid discharging valve 6-2 compresses by the double-screw bolt on the valve pocket end of discharge tube 6-8 and is connected on the pump housing, and the other end of described discharge tube 6-8 is connected with high pressure water-collecting machine 6-3; Described feed liquor valve 6-5 is pressed on the pump housing 6-4 by sucking pipeline section 6-9 upper flange, sucks pipeline section 6-9 lower flange and is connected with low pressure water-collecting machine 6-6; The pump housing is located by connecting on the side of special-purpose truss 6-10, and the other end of special-purpose truss 6-10 is connected with the fluid end of support.
Described pump housing 6-4 transmits chamber 6-4-3 by plunger active chamber 6-4-1, valve flow passage chamber 6-4-2 and power and constitutes, one as the medium transport conduit 6-7 of valve flow passage chamber 6-4-2 and power transmission chamber 6-4-3 is concentric installs, and be axially fixed in the pump housing 6-4.
In the lower, lower end of medium transport conduit 6-7, be provided with four hole 6-7-1 that supply flowing medium to enter; The tie point that power is transmitted chamber 6-4-3 and plunger active chamber 6-4-1 and power transmission chamber 6-4-3 and valve flow passage chamber 6-4-2 be connected between, medium is H with the upper and lower fluctuation vertical height of separating surface that oil is isolated, the distance 〉=1/2H between interfacial fluctuation highest point and plunger active chamber.
Described sealed letter 6-1 comprises back sealed letter body 6-1-1, preceding sealed letter body 6-1-11, plunger 6-1-2, plunger seal group and guide sleeve, and described plunger seal group comprises sealing oil sealing 6-1-3, flushing oil sealing 6-1-6 and injects oil seal 6-1-9; Be provided with sealing oil sealing 6-1-3, sealing oil import 6-1-4, sealing oil outlet 6-1-5, flushing oil sealing 6-1-6, flushing oil import 6-1-7, flushing oil outlet 6-1-8 on the described back sealed letter body 6-1-1 successively, inject oil seal 6-1-9 and inject oil inlet 6-1-10.
Described filling line 12 is fuel reserve tanks, go into oil inlet pipeline and injection pump 7 to injecting oil inlet 6-1-10.
Described flushing line 13 connects flushing oil import 6-1-7 by pipeline, and flushing oil outlet 6-1-8 returns through pipeline and connects flushing line 13.
Described sealing oil pipeline 14 is by sealing for tubing joints oil inlet 6-1-4, and sealing oil outlet 6-1-5 returns through pipeline and connects sealing oil pipeline 14.
Described lubricated part is made of a series of warnings, interlocking, detection device, lubricating pump, cooler and oil separator 11-4; Described oil separator 11-4 has two oil circuits to main pump, and one road delivery outlet 11-1 from oil separator passes through the lubricating oil inlet 5-10 of power end directly to crosshead crawler shoe friction pair, crosshead pin friction pair and big end bearing shell fuel feeding; The lubricating oil inlet 5-3 of power end is passed through to six sliding bearing friction pairs of bent axle DFF Direct Fuel Feed from the delivery outlet 11-2 of oil separator in another road; To injection pump 7 are the 3rd oil circuits, from the delivery outlet 11-3 of oil separator with pressure lubrication oil by injection pump crankshaft center oilhole to each friction pair of connnecting rod big end, microcephaly and crosshead; Main pump and injection pump respectively have a reflow pipe, get back to the fuel tank of lubricated part by reflow pipe lubricant oil.
The beneficial effects of the utility model
Reciprocating plunger pump of the present utility model brings following effect according to each new structure that coal becomes oily operating mode making and settlement:
1. pump power end structure pattern five turns six fulcrums and supports continuously, and five-plunger pump makes the residue pulsation of pump little (five-plunger pump pressure pulsation be three plungers 1/3), and the fulcrum span is little, and the rigidity height operates steadily main pump work.
2. the pump power end adopts lubricating method, the pressure oil of lubrication system, one the tunnel enters crosshead, crosshead pin, connecting rod size bearing shell, each friction pair of crankshaft crank, one the tunnel enters the main bearing at six places, satisfy the characteristics of the two shafts of main pump bent axle, each performance parameter of lubrication system is in the monitoring state during operation, guarantees lubricated reliable.
3. fluid end is used for 2 application specific architectures of granule medium
1. be provided with backhaul injection, flushing and sealing (lubricating) three kinds of loops at the sealed letter place granule medium is played buffer action, make granule medium be difficult to sneak into plunger and Sealing, sneak into once in a while by flushing and also can be removed.
2. pump housing vestibule is designed to the reciprocating active chamber of plunger and transmits the chamber with the power that the valve flow passage chamber is connected.
These two structures play to make injects the barrier action of playing the transmission that plunger and Sealing and coal slurry granule medium is not only strong after oily backhaul is injected but also oily isolation being arranged, and guarantees plunger and seal life large increase.
The plunger life-span reaches 6000h; The plunger seal life-span reaches 6000h.
4. pump inlet circuit design becomes no cecum, and the pipeline at no dead angle has been avoided the precipitation and the alluvial of granule medium, guarantees coal slurry feedstock pump reliable operation for a long time.
5. be suitable for the fluid end specialized structure of worst hot case
(1) sealed letter place cooling water steam heating passage guarantees that pump starts after the preheating when initial start, cool off when reaching hot operation.
(2) have the special-purpose truss of radiating fin, between high 200 ℃ the pump housing of temperature and support, play thermolysis, guarantee that power end reaches interconnect function to blocking type pump head and sealed letter simultaneously in the normal-temperature continuous operation.
Description of drawings
Fig. 1: reciprocating type coal slurry feedstock pump structural drawing of the present utility model;
Fig. 2: the plan structure schematic representation of the utility model Fig. 1;
Fig. 3: many fulcrums of the utility model high thrust power end structural drawing;
Fig. 4: the side-looking structural representation of the utility model Fig. 3;
Fig. 5: the plan structure schematic representation of the utility model Fig. 3;
Fig. 6: the utility model pump stroke reversal flushing oil isolated system fluid end structural representation;
Fig. 7: the utility model oil isolation structure pump body structure schematic representation;
Fig. 8: the utility model sealed letter figure;
Fig. 9: the utility model pump inlet pipe and return line structural representation;
Figure 10: the plan structure schematic representation of the utility model Fig. 9.
Embodiment
Specific embodiments of the present utility model is always schemed referring to the structure of reciprocating plunger pump illustrated in figures 1 and 2.Present embodiment is by drive part 1, main pump export pipeline 2, discharge voltage stabilizer 3, import loop pipe 4, main pump power end 5, main pump fluid end 6, injection pump 7, suction voltage stabilizer 8, main pump inlet ductwork 9, injection pump coupling 10, lubricated part 11, filling line 12, flushing line 13, sealing oil pipeline 14, and main pump coupling 15 and electric meter control system 16 constitute.
Described drive part 1 is made of main motor 1-1 and retarder 1-2, the bent axle 5-1 of described main motor 1-1 by retarder 1-2 and main pump coupling 15 and main pump power end 5 connects, and another goes out axle head by injection pump coupling 10 connection injection pumps 7 main pump power end 5 bent axle 5-2.The crank pin of bent axle 5-1 connects connecting rod 5-11, and connecting rod 5-11 is connected with crosshead 5-9, and crosshead 5-9 is connected with intermediate bar 5-6, and intermediate bar 5-6 is connected with the plug 6-1-2 that leans on of main pump fluid end 6.The structure of six fulcrums is turned in the supporting employing five of described bent axle 5-1, and promptly each has turned two fulcrums.Because bent axle five turns six fulcrum structures, the fulcrum constraint is many, and influences such as the gap of consideration bearing shell and temperature, and accuracy Design requires high.At main pump power end 5, have 16 pairs of sliding bearing fastnesses, connecting rod has 10 pairs, each 5 pairs on a wherein large and small bearing shell, all the other 6 pairs is bent axle master Sliding bush.The special bearing material that the main sliding bearing 5-4 of power end 5,5-5 adopt three metallic combinations.The support of main pump power end 5 and fluid end joint are the requirement of satisfying high temperature, high pressure, high thrust pump, and existing sealed letter supports the location bridge, and the heat radiation that connects with the pump housing is arranged again, the structure of location truss.
Described inlet ductwork 9, suction voltage stabilizer 8, main pump fluid end 6, import reflow pipe 4, discharge voltage stabilizer 3 and main pump export pipeline 2 constitute medium overcurrent parts; And connect by inlet ductwork 9, suction voltage stabilizer 8, main pump fluid end 6, import reflow pipe 4, discharge voltage stabilizer 3 pipelines and main pump export pipeline 2 successively.
Described main pump fluid end 6 referring to shown in Figure 6, is made of sealed letter 6-1, liquid discharging valve 6-2, high pressure water-collecting machine 6-3, pump housing 6-4, feed liquor valve 6-5 and low pressure water-collecting machine 6-6; The cylindrical of the back sealed letter body 6-1-1 of described sealed letter 6-1 is positioned in the positioning hole 5-15 of sealed letter of support, and 5-16 compresses with gland, described before sealed letter body 6-1-11 be connected with pump housing 6-4 by flange; Described liquid discharging valve 6-2 compresses by the double-screw bolt on the valve pocket end of discharge tube 6-8 and is connected on the pump housing, and the other end of described discharge tube 6-8 is connected with high pressure water-collecting machine 6-3; Described feed liquor valve 6-5 is pressed on the pump housing 6-4 by sucking pipeline section 6-9 upper flange, sucks pipeline section 6-9 lower flange and is connected with low pressure water-collecting machine 6-6; The pump housing is located by connecting on the side of special-purpose truss 6-10, and the other end of special-purpose truss 6-10 is connected with the fluid end of support.
Described pump housing 6-4, referring to shown in Figure 7, transmit chamber 6-4-3 by plunger active chamber 6-4-1, valve flow passage chamber 6-4-2 and power and constitute, one as the medium transport conduit 6-7 of valve flow passage chamber 6-4-2 and power transmission chamber 6-4-3 is concentric installs, and be axially fixed in the pump housing 6-4.In the lower, lower end of medium transport conduit 6-7, be provided with four hole 6-7-1 that supply flowing medium to enter; The tie point that power is transmitted chamber 6-4-3 and plunger active chamber 6-4-1 and power transmission chamber 6-4-3 and valve flow passage chamber 6-4-2 be connected between, medium is H with the upper and lower fluctuation vertical height of separating surface that oil is isolated, the distance 〉=1/2H between interfacial fluctuation highest point and plunger active chamber.After preventing that isolation is oily and medium mixes, a part of flow particles medium is transferred in the plunger active chamber.Simultaneously, control force is transmitted the inwall in chamber and the size of the sectional area between the medium transport conduit 6-7 outer wall, and the flow velocity of energy control media as flow velocity v≤0.10m/s, can prevent from emulsion to occur on the oily separating surface of isolating.
Described sealed letter 6-1, referring to shown in Figure 8, comprise back sealed letter body 6-1-1, preceding sealed letter body 6-1-11, plunger 6-1-2, plunger seal group and guide sleeve, described plunger seal group comprises sealing oil sealing 6-1-3, flushing oil sealing 6-1-6 and injects oil seal 6-1-9; Be provided with sealing oil sealing 6-1-3, sealing oil import 6-1-4, sealing oil outlet 6-1-5, flushing oil sealing 6-1-6, flushing oil import 6-1-7, flushing oil outlet 6-1-8 on the described back sealed letter body 6-1-1 successively, inject oil seal 6-1-9 and inject oil inlet 6-1-10.
Described filling line 12 are fuel reserve tanks through inject the oil inlet pipeline to injection pump 7 to injection oil inlet 6-1-10; Injection pump 7 will inject oil and be pressed in the plunger cavity of preceding sealed letter body 6-1-11 by injection oil inlet 6-1-10.
Described flushing line 13 connects flushing oil import 6-1-7 by pipeline, and flushing oil outlet 6-1-8 returns through pipeline and connects flushing line 13.The oil pressure of flushing oil import is 0.5Mpa on the sealed letter, and flushing oil passes through the flushing annular groove of sealed letter, after the plunger flushing, exports away from flushing oil, becomes the part of injection pump oil-feed after filtration.
Described sealing oil pipeline 14 is by sealing for tubing joints oil inlet 6-1-4, and sealing oil outlet 6-1-5 returns through pipeline and connects sealing oil pipeline 14.The machine oil that lubricating pump will be higher than flushing oil oil pressure 0.2～0.3Mpa is thrown the sealing oil import on the sealed letter into, behind the oil lubrication plunger surface, again by sealing oil outlet output.
Sealed letter adopts backhaul to inject structures such as flushing, and plunger and seal arrangement and coal working medium are isolated.The design of sealed letter has two characteristics:
1). packing body front plunger active chamber is connected with the plunger active chamber of the pump housing, and the length of its whole plunger active chamber is equivalent to two-pass active chamber, makes that to inject oily isolated area longer, makes granule medium to the influence of its sealing of plunger still less.
2). when the three-in-one structure that sealed letter injects, washes, seals enters the suction backhaul at the main pump plunger, injection pump will inject oil covers into sealed letter by injection plunger active chamber.The oil mass of injecting oil is about 3% of main pump, so main pump whenever contains 3% approximately in the discharge capacity and inject oil, injects oil and kind upgrades a conversion in operation.
After filling line, be provided with the flushing line structure, with the flushing oil of cleaning, its oil temperature is higher than injection oil for minimum 10 ℃, uses oil flushing in the flushing chamber, and the coal slurry granule medium that enters plunger seal is once in a while washed.
After the flushing chamber, Seal cage adopts the sealing oil sealing, and oil product adopts machinery oil, and oil pressure is higher than flushing oil pressure 2-3bar will lubricate plunger.Make flushing oil not enter Seal cage, avoid flushing oil place rubbish plucking plunger.
Consult Fig. 6, injection pump 7 backhauls flushing and oil are isolated these two kinds of model utility structures, can reach following effect:
The structure that three loops of 1) sealed letter backhaul, flushing and sealing and pump housing oil are isolated is by injecting oil, granule medium and plunger and Sealing are isolated, avoided the wearing and tearing of granule medium, improved the working life of plunger and Sealing greatly plunger and Sealing.
2) during pump operation, the velocity of medium that pump housing internal force transmits the chamber is controlled at≤0.10m/s (the separating surface control flow velocity of reference oil separate pump), is useful to preventing and reduce that emulsion appears in separating surface that oil is isolated.
3) the flow medium has gas when tendency, and the structure of pump housing valve flow passage chamber is can prevent to produce in the flow steam and the bubble power that enters is transmitted medium, can reduce plunger efficient and reduce.
4) because injection in the sealed letter, flushing and sealing configuration have the particle mortar to enter as idol, also can obtain the flushing cleaning, plunger also must lubricate simultaneously, also can reduce friction and improve the life-span, learns according to test, and spraying more can improve the life-span if plunger adopts Tungsten carbite.
Described lubricated part is made of a series of warnings, interlocking, detection device, lubricating pump, cooler and oil separator 11-4, consults Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5.Described oil separator 11-4 has two oil circuits to main pump, the one road from lubricating oil inlet 11-1 with pressure lubrication oil directly to crosshead crawler shoe friction pair, crosshead pin friction pair and big end bearing shell fuel feeding; Another road from lubricating oil inlet 11-2 with pressure lubrication oil to six sliding bearing friction pairs of bent axle DFF Direct Fuel Feed.To injection pump is that an oil circuit passes through injection pump crankshaft center oilhole to each friction pair of connnecting rod big end, microcephaly and crosshead from lubricating oil inlet 11-3 with pressure lubrication oil.Main pump and injection pump respectively have a reflow pipe, and by reflow pipe, lubricant oil is got back to the fuel tank of lubricated part.
In lubricated part main pump is adopted lubricated mode, crank throw to bent axle does not need the hole of buying oil, the main pump bent axle is the considerable parts of reciprocating plunger pump, it is that rotatablely moving of driving mechanism is converted into reciprocating part by crank throw, will cause that stress is concentrated if therefore there is oilhole to exist on the crank throw, permanent operation can produce fatigue crack, the fracture propagation meeting makes bent axle lose efficacy because of damage, therefore the type at the high thrust power end adopts lubrication system, will guarantee the Security of equipment operation.
Discharge voltage stabilizer 3 is positioned at fluid end and discharges side, because all there is pressure pulsation in the outlet of main pump, main pump outlet medium makes the pressure residue pulsation of outlet little by discharge voltage stabilizer 3.Guarantee to discharge operating steadily of medium.
Pump inlet pipe and reflow pipe specialized designs are consulted Fig. 9 and Figure 10, pump inlet pipe and reflow pipe pipeline when carrying granule medium must keep runner unobstructed, structurally the dead angle can not be arranged, and adopt the structure of no blind hole to guarantee that liquid entering hole sucks the unimpeded granule medium alluvial that prevents.
The coal slurry medium passes through inlet ductwork known to Fig. 9, enter the top that sucks voltage stabilizer, the bottom that sucks voltage stabilizer 4 adopts the butterfly type end socket pattern of funnel form that granule medium can't be deposited in the container bottom, by the bottom latus rectum is to connect extend neck (digital pressure transmitter is housed) in the D outlet(discharge) flange, can monitor and the inlet pressure of visual pump, extend neck is connected with the low pressure water-collecting machine, and low pressure water-collecting machine 2 has five parallel liquid inlet pipes and opposite side backflow caliber, opposite side backflow caliber D
1Be about the outlet D's that sucks voltage stabilizer
Five liquid inlet pipes can guarantee that the liquid entering hole of each blocking type pump head pipeline of main pump obtains the flow of rated boost pressure, medium, and all the other enter the coal slurry medium of low pressure water-collecting machine from D
1Latus rectum flows back in the former coal slurry low pressure jar.Therefore the utility model inlet tube and reflow pipe have accomplished do not have the dead angle in the low pressure water-collecting machine chamber of pump, do not produce alluvial, guarantee specified inlet pressure in the fluid end low-pressure cavity, guarantee the suction performance of pump.The import reflow pipe of low pressure water-collecting machine opposite side forms the return passage of no cecum, forms a backhaul with coal slurry low pressure jar, and the low pressure oil coal slurry circulates in this loop.Medium circulation flows and makes the various compositions of coal slurry play the effect of stirring, and medium alluvial precipitation has been avoided in medium continuous-flow, has guaranteed the inlet head of pump, and this operation to pump is vital.Because pipeline such as granule medium deposit, precipitate, can make the input duct stenosis narrow, will produce because of sucking deficiency and cause cavitation to make pump produce vibration, cause pump normally to move.
Fig. 6 is seen in the application specific architecture design that is suitable for high temperature media, and a special operation condition of coal slurry feedstock pump promptly is a high temperature, 290 ℃ of Maximum operating temperatures.See Fig. 6, have the special-purpose truss of radiating fin, the one, solve being located by connecting of the piecemeal pump housing and sealed letter, the while is played thermolysis between the high pump housing of temperature and support.The outer cylinder body of sealed letter front portion is furnished with special-purpose heating and cooling jacket, has led to the initial temperature of steam heating to 130 ℃ when starting, reduces temperature difference when initial, enters cooling water when normally moving and plays cooling effect.
Claims (10)
1. can carry high temperature for one kind, high pressure, the reciprocating plunger pump of granule medium, comprise drive part (1), main pump export pipeline (2), discharge voltage stabilizer (3), import loop pipe (4), main pump power end (5), main pump fluid end (6), injection pump (7), suck voltage stabilizer (8), main pump inlet ductwork (9), injection pump coupling (10), lubricated part (11), filling line (12), flushing line (13), sealing oil pipeline (14), main pump coupling (15) and electric meter control system (16): it is characterized in that: described drive part (1) is made of main motor (1-1) and retarder (1-2), described main motor (1-1) connects with the bent axle (5-1) of main pump power end (5) by retarder (1-2) and main pump coupling (15), the crank pin of bent axle (5-1) connects connecting rod (5-11), connecting rod (5-11) is connected with crosshead (5-9), crosshead (5-9) is connected with intermediate bar (5-6), and intermediate bar (5-6) is connected with the plunger (6-1-2) of main pump fluid end (6); The structure of six fulcrums is turned in the supporting employing five of described bent axle (5-1), and promptly each has turned two fulcrums, and another shaft of main pump power end (5) (5-2) end connects injection pump (7).
2. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 1 is characterized in that: described inlet ductwork (9), suction voltage stabilizer (8), main pump fluid end (6), import reflow pipe (4), discharge voltage stabilizer (3) and main pump export pipeline (2) constitute medium overcurrent part; And connect by inlet ductwork (9), suction voltage stabilizer (8), main pump fluid end (6), import reflow pipe (4), discharge voltage stabilizer (3) pipeline and main pump export pipeline (2) successively.
3. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 1 and 2 is characterized in that: described main pump fluid end (6) by sealed letter (6-1), liquid discharging valve (6-2), high pressure catchment (6-3), the pump housing (6-4), feed liquor valve (6-5), low pressure water-collecting machine (6-6) and medium transport conduit (6-7) constitute; The cylindrical of the back sealed letter body (6-1-1) of described sealed letter (6-1) is positioned in the positioning hole (5-15) of the sealed letter of support, and (5-16) compresses with gland, and described preceding sealed letter body (6-1-11) is connected with the pump housing (6-4) by flange; Described liquid discharging valve (6-2) compresses by the double-screw bolt on the valve pocket end of discharge tube (6-8) and is connected on the pump housing, and the other end of described discharge tube (6-8) is connected with high pressure water-collecting machine (6-3); Described feed liquor valve (6-5) is pressed on the pump housing (6-4) by sucking pipeline section (6-9) upper flange, sucks pipeline section (6-9) lower flange and is connected with low pressure water-collecting machine (6-6); The pump housing is located by connecting on a side of special-purpose truss (6-10), and the other end of special-purpose truss (6-10) is connected with the fluid end of support.
4. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 3, it is characterized in that: the described pump housing (6-4) transmits chamber (6-4-3) by plunger active chamber (6-4-1), valve flow passage chamber (6-4-2) and power and constitutes, medium transport conduit (6-7) as valve flow passage chamber (6-4-2) transmits the concentric installation in chamber (6-4-3) with power, and is axially fixed in the pump housing (6-4).
5. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 4 is characterized in that: in the lower, lower end of medium transport conduit (6-7), be provided with four holes (6-7-1) that supply flowing medium to enter; The tie point that power is transmitted chamber (6-4-3) and plunger active chamber (6-4-1) and power transmission chamber (6-4-3) and valve flow passage chamber (6-4-2) be connected between, medium is H with the upper and lower fluctuation vertical height of separating surface that oil is isolated, the distance 〉=1/2H between interfacial fluctuation highest point and plunger active chamber.
6. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 3, it is characterized in that: described sealed letter (6-1) comprises back sealed letter body (6-1-1), preceding sealed letter body (6-1-11), plunger (6-1-2), plunger seal group and guide sleeve, and described plunger seal group comprises sealing oil sealing (6-1-3), flushing oil sealing (6-1-6) and injects oil seal (6-1-9); Be provided with sealing oil sealing (6-1-3), sealing oil import (6-1-4), sealing oil outlet (6-1-5), flushing oil sealing (6-1-6), flushing oil import (6-1-7), flushing oil outlet (6-1-8) on the described back sealed letter body (6-1-1) successively, inject oil seal (6-1-9) and inject oil inlet (6-1-10).
7. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 6 is characterized in that: described filling line (12) is fuel reserve tank, go into oil inlet pipeline and injection pump (7) to injecting oil inlet (6-1-10).
8. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 6, it is characterized in that: described flushing line (13) connects flushing oil import (6-1-7) by pipeline, and flushing oil outlet (6-1-8) is returned through pipeline and connected flushing line (13).
9. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 6, it is characterized in that: described sealing oil pipeline (14) is by sealing for tubing joints oil inlet (6-1-4), and sealing oil outlet (6-1-5) is returned through pipeline and connected sealing oil pipeline (14).
10. a kind of reciprocating plunger pump of carrying high temperature, high pressure, granule medium according to claim 1 and 2 is characterized in that: described lubricated part (11) is made of a series of warnings, interlocking, detection device, lubricating pump, cooler and oil separator (11-4); Described oil separator (11-4) has two oil circuits to main pump, and the lubricating oil inlet (5-10) of one road delivery outlet from oil separator (11-1) by power end is directly to crosshead crawler shoe friction pair, crosshead pin friction pair and big end bearing shell fuel feeding; Another road from the delivery outlet (11-2) of the oil separator lubricating oil inlet (5-3) by power end to six sliding bearing friction pairs of bent axle DFF Direct Fuel Feed; To injection pump (7) is the 3rd oil circuit, from the delivery outlet (11-3) of oil separator with pressure lubrication oil by injection pump crankshaft center oilhole to each friction pair of connnecting rod big end, microcephaly and crosshead; Main pump and injection pump respectively have a reflow pipe, get back to the fuel tank of lubricated part by reflow pipe lubricant oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200467575U CN201013545Y (en) | 2006-10-12 | 2006-10-12 | Reciprocating type plunger pump capable of conveying high-temperature, high pressure and grain medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200467575U CN201013545Y (en) | 2006-10-12 | 2006-10-12 | Reciprocating type plunger pump capable of conveying high-temperature, high pressure and grain medium |
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| Publication Number | Publication Date |
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| CN201013545Y true CN201013545Y (en) | 2008-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200467575U Expired - Fee Related CN201013545Y (en) | 2006-10-12 | 2006-10-12 | Reciprocating type plunger pump capable of conveying high-temperature, high pressure and grain medium |
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| CN (1) | CN201013545Y (en) |
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| CN102434416A (en) * | 2011-12-06 | 2012-05-02 | 泉州市泉港迅达石化设备安装有限公司 | Novel valveless material self-absorbing conveying device |
| CN102889190A (en) * | 2012-10-24 | 2013-01-23 | 徐州五洋科技股份有限公司 | Mining emulsified liquid pump capable of automatically preparing emulsified liquid |
| CN103029219A (en) * | 2012-12-18 | 2013-04-10 | 陆泽鹏 | Additive automatic control device |
| CN105545623A (en) * | 2015-12-30 | 2016-05-04 | 天津市通洁高压泵制造有限公司 | Five-plunger ultrahigh-pressure large-power reciprocating pump and working method thereof |
| CN105626507A (en) * | 2016-03-21 | 2016-06-01 | 浙江中煤机械科技有限公司 | Five-plunger pump |
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| CN109488553A (en) * | 2018-12-27 | 2019-03-19 | 上海福思特流体机械有限公司 | A kind of novel three plungers coal slurry charging pump assembly |
| CN110017269A (en) * | 2018-11-09 | 2019-07-16 | 何巨堂 | Tri- material filling type reciprocation sealing of Qiang and its reciprocating pump are rinsed with pressurization is intermediate |
| CN110017256A (en) * | 2018-10-10 | 2019-07-16 | 何巨堂 | A kind of cylinder-and-piston type reciprocating pump |
| CN112302896A (en) * | 2020-11-12 | 2021-02-02 | 中国神华煤制油化工有限公司鄂尔多斯煤制油分公司 | Reciprocating pump for conveying high-temperature high-pressure solid-containing medium |
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| CN102434416B (en) * | 2011-12-06 | 2014-06-18 | 泉州市泉港迅达石化设备安装有限公司 | Novel valveless material self-absorbing conveying device |
| CN102434416A (en) * | 2011-12-06 | 2012-05-02 | 泉州市泉港迅达石化设备安装有限公司 | Novel valveless material self-absorbing conveying device |
| CN102889190A (en) * | 2012-10-24 | 2013-01-23 | 徐州五洋科技股份有限公司 | Mining emulsified liquid pump capable of automatically preparing emulsified liquid |
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| CN103029219A (en) * | 2012-12-18 | 2013-04-10 | 陆泽鹏 | Additive automatic control device |
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| CN105829713B (en) * | 2013-12-18 | 2018-02-16 | 玫海伟尔特股份有限公司 | Warm sludge stock pump |
| CN105829713A (en) * | 2013-12-18 | 2016-08-03 | 玫海伟尔特股份有限公司 | Hot slurry pump |
| CN105545623A (en) * | 2015-12-30 | 2016-05-04 | 天津市通洁高压泵制造有限公司 | Five-plunger ultrahigh-pressure large-power reciprocating pump and working method thereof |
| CN105545623B (en) * | 2015-12-30 | 2018-04-24 | 天津市通洁高压泵制造有限公司 | The high-power reciprocating pump of five plunger super-pressure and its method of work |
| CN105715480A (en) * | 2016-03-21 | 2016-06-29 | 浙江中煤机械科技有限公司 | Large-flow emulsion plunger pump and emulsion pump station |
| CN105626507A (en) * | 2016-03-21 | 2016-06-01 | 浙江中煤机械科技有限公司 | Five-plunger pump |
| CN108571442A (en) * | 2017-03-07 | 2018-09-25 | 米顿罗工业设备（上海）有限公司 | A kind of shut-off valve and the multi-plunger diaphragm pump using the shut-off valve |
| CN110017256A (en) * | 2018-10-10 | 2019-07-16 | 何巨堂 | A kind of cylinder-and-piston type reciprocating pump |
| CN110017269A (en) * | 2018-11-09 | 2019-07-16 | 何巨堂 | Tri- material filling type reciprocation sealing of Qiang and its reciprocating pump are rinsed with pressurization is intermediate |
| CN109488553A (en) * | 2018-12-27 | 2019-03-19 | 上海福思特流体机械有限公司 | A kind of novel three plungers coal slurry charging pump assembly |
| CN112302896A (en) * | 2020-11-12 | 2021-02-02 | 中国神华煤制油化工有限公司鄂尔多斯煤制油分公司 | Reciprocating pump for conveying high-temperature high-pressure solid-containing medium |
| CN117605673A (en) * | 2023-12-07 | 2024-02-27 | 阿奥艾斯能源科技成都有限公司 | Horizontal multi-cylinder plunger type feeding pump for residual oil hydrogen production |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: No. 815 West Changjiang Road, Shanghai, Baoshan District: 200431 Patentee after: Shanghai Electrical Compressor Pumps Co.,Ltd. Address before: No. 850 West Changjiang Road, Shanghai, Baoshan District: 200431 Patentee before: Shanghai Dalong Mechine Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC COMPRESSOR PUMP CO., LTD. Free format text: FORMER OWNER: SHANGHAI DALONG MOTOR CO., LTD. Effective date: 20090109 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20121012 |