CN108757367A - Reciprocating intensifier pump - Google Patents
Reciprocating intensifier pump Download PDFInfo
- Publication number
- CN108757367A CN108757367A CN201810818832.2A CN201810818832A CN108757367A CN 108757367 A CN108757367 A CN 108757367A CN 201810818832 A CN201810818832 A CN 201810818832A CN 108757367 A CN108757367 A CN 108757367A
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- pump head
- piston
- cylinder sleeve
- pump
- interlude
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- 239000000945 filler Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 56
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 11
- 230000006872 improvement Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/166—Cylinder liners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of reciprocating intensifier pumps, belong to pump class technical field, including pump head, plunger or piston component, filler box assembly or cylinder sleeve assembly, the pump head is equipped with suction inlet and outlet, working chamber is equipped in the pump head, the plunger or the piston component include interlude, drive section and active section, the active section corresponds to the working chamber setting, it is equipped with counter balance pocket between the filler box assembly or the cylinder sleeve assembly, the drive section and the interlude, communicating passage is equipped between the suction inlet and the counter balance pocket；The area equation of the difference and the active section radial section of the area of the area of the interlude radial section and the drive section radial section.In this way, no matter how suction pressure, outlet pressure and flow change, hydraulic coupling suffered by plunger or piston component is in equilibrium state, effectively avoids because of equipment damage and power loss caused by by working media hydraulic coupling imbalance, versatility is good.
Description
Technical field
The invention belongs to pump class technical field more particularly to a kind of reciprocating intensifier pump.
Background technology
Reciprocating pump is one kind of positive displacement pump, in necks such as oil field, chemical industry, industrial productions as a kind of common fluid machinery
Domain extensive application.With the change of all kinds of production technologies and working condition, some existing disadvantages of conventional reciprocating pump are but got over
Come it is more apparent, need we constantly carried out on the basis of conventional reciprocating pumps improve innovation to meet the need of more special operation conditions
It asks.
Reciprocating pump mainly has two kinds of piston type and plunger type.Traditional plunger reciprocating pump is as shown in Figure 1, mainly by power end
100 and fluid end 200 form.Power end 100 is turned by connecting external power supply, the rotary motion that motor or prime mover are provided
It is changed to linear reciprocating motion, which includes shell 101, bent axle 102, bearing shell 103, connecting rod 104 and crosshead 105, liquid
Power end 200 includes pump head 201, plunger 202 and check valve 203, and plunger 202 and 100 reciprocating linear of power end of fluid end 200 are transported
Dynamic crosshead 105 connects, the volume under the driving of power end 100 in straight reciprocating motion change 201 cavity of pump head, to
Achieve the purpose that imbibition and drain by the variation of volume.Since such pump configuration is simple, Adaptability of medium is strong, output pressure is high
The features such as be widely applied.
Conventional reciprocating pump it is negligible relative to outlet pressure with being often pump inlet pressure, by reciprocal
Output carries out production operation after medium is pressurized to requirements by the movement of pump plunger.But with changing for production model and operation technique
Become, the pressure of the reciprocal Pump Suction Nozzle in part has had reached high value.Need that will there is the secondary increasing of the medium of certain pressure
Operation after pressure.Such as part well site of oil field or chemical industry operation scene are needed the medium in the main water line with certain pressure
Meet respective job requirements after carrying out secondary booster to special value.Under such operating mode, if still using conventional reciprocating pump,
The energy that then main feed flow pipeline provides can not only utilize, instead can due in main feed flow pipeline medium react on reciprocal pump plunger shaft
Plug 202 and power end 100, causes that the bearing shell 103 of power end 100 wears aggravation, the service life drastically shortens, power loss is serious.
In order to efficiently use the medium energy of main feed flow pipeline, extend the reciprocating pump service life, booster pump comes into being.It is ready-made ripe
With booster pump fluid power end part is improved on the basis of conventional reciprocating pump.It is pressurized pump hydraulic end principle such as Fig. 2 institutes
Show.Plunger is designed as two-stage ladder, plunger is divided into two closed chambers of B, D, the increasing of medium is realized by the variation of volume
Pressure goes out.A is suction inlet, suction pressure P0 in Fig. 2；B is working chamber, and work cavity pressure is P1, working chamber diameter of plunger
For d1, the active area of working chamber plunger is S1；C is outlet, outlet pressure P2；D is counter balance pocket, and counter balance pocket plunger is straight
Diameter is d2, the active area of sectional area S2, counter balance pocket plunger are S1-S2.Balance is set between counter balance pocket D and outlet C
Pipe 204, by from the high-pressure medium that high-pressure outlet C is introduced to counter balance pocket D, balancing active force of the inlet hydraulic to plunger, i.e.,
It is big to be effectively improved power end serious wear, energy loss to reach the stress balance of plunger and bent axle
Defect.
From the above equation, we can see that when the timing of discharge capacity one, when inlet and outlet pressure demand difference, the counter balance pocket diameter of plunger of stage columnar plug
Matching is also different, as long as therefore when inlet and outlet pressure or discharge capacity any one job parameter difference, booster pump needs again
Matched design, versatility be not strong.If or even when Partial Jobs operating mode inlet and outlet pressure and larger displacement variation, such booster pump
Still it cannot be satisfied required working condition.
Existing piston type booster pump is similar to above-mentioned plunger type boosting pump structure, and principle is identical, therefore there is also above-mentioned
Problem.
Invention content
The technical problem to be solved by the present invention is to：A kind of reciprocating intensifier pump is provided, no matter suction pressure, outlet
How pressure and flow change, and hydraulic coupling suffered by plunger or piston component is in equilibrium state, effectively avoid because being worked
Equipment damage and power loss caused by dielectric fluid pressure imbalance, versatility are good.
In order to solve the above technical problems, the technical scheme is that：Reciprocating intensifier pump, including pump head and be installed on
The plunger or piston component of the pump head, the pump head are equipped with suction inlet and outlet, and working chamber is equipped in the pump head, described
Filler box assembly or cylinder sleeve assembly are also equipped on pump head, the plunger runs through the filler box assembly or the piston component
Through the cylinder sleeve assembly；The plunger or the piston component include interlude and the drive positioned at the interlude both sides
Dynamic section and active section, the diameter of the interlude are more than the diameter of the drive section, and the active section corresponds to the working chamber and sets
It sets, counter balance pocket, the sucking is equipped between the filler box assembly or the cylinder sleeve assembly, the drive section and the interlude
Communicating passage is equipped between mouth and the counter balance pocket；The area of the interlude radial section and the drive section radial section
The area equation of the difference of area and the active section radial section.
As an improvement installing the plunger on the pump head, the filler box assembly is described including being fixedly mounted on
Stuffing box between the shell of booster pump and the pump head, the stuffing box are sealed and installed with pair close to the side of the shell and fill out
Hopper, the pair filler box part stretch out the stuffing box and are equipped with cavity between the two, be fixedly connected on the pair stuffing box
There is secondary stuffing box pressure cap；
Be equipped with the first sealing element between the stuffing box and the interlude, pair stuffing box and the drive section it
Between be equipped with the second sealing element, the pair stuffing box, the drive section, the interlude, first sealing element and described
The counter balance pocket is surrounded between second sealing element.
As a further improvement, the communicating passage includes first passage, second channel, balance pipe and third channel,
The first passage is set on the secondary stuffing box and the connection counter balance pocket and the cavity, one end of the balance pipe are fixed
It is installed on the stuffing box, the other end is fixedly installed in the pump head, and the second channel is set on the stuffing box and is connected to
The cavity and the balance pipe, the third channel are set on the pump head and are connected to the balance pipe and suction inlet.
As a further improvement, third sealing element is equipped between the pump head and the active section.
As a further improvement, the stuffing box is between first sealing element and the third sealing element
Position offer venthole.
As an improvement installing the piston component on the pump head, the drive section is piston rod, the interlude
For set on the first piston of the body of rod of the piston rod, the active section is the second piston set on the piston rod end.
As a further improvement, the cylinder sleeve assembly includes the shell for being fixedly mounted on the booster pump and the pump head
Between cylinder sleeve, be fixedly connected with cylinder sleeve pressure cap on the cylinder sleeve, the 4th be equipped between the cylinder sleeve pressure cap and the piston rod
Sealing element；Between the cylinder sleeve, the piston rod, the first piston, the cylinder sleeve pressure cap and the 4th sealing element
Surround the counter balance pocket.
As a further improvement, the communicating passage includes balance pipe, fourth lane and Five-channel, the balance pipe
One end be fixedly installed in the cylinder sleeve, the other end is fixedly installed in the pump head, and the fourth lane is set on the cylinder sleeve
And it is connected to the counter balance pocket and the balance pipe, the Five-channel is set on the pump head and is connected to the balance pipe and sucking
Mouthful.
As a further improvement, the first piston is equipped with the 5th sealing element, and the second piston is equipped with the
Six sealing elements.
As a further improvement, position of the cylinder sleeve between the first piston and the second piston opens up
There is venthole.
After using above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Since the plunger of reciprocating intensifier pump or the piston component including interlude and are located at the centre
The drive section and active section of section both sides, the diameter of the interlude are more than the diameter of the drive section, filler box assembly or cylinder sleeve
Counter balance pocket, the suction inlet and the balance of reciprocating intensifier pump are equipped between assembly, the drive section and the interlude
Communicating passage is equipped between chamber；Thus suction pressure is used as when balance pressure eliminates working chamber imbibition by communicating passage and is supplied
Liquid medium loses the acting of plunger or piston component, while being matched by size, makes the area of the interlude radial section
And no matter the area equation of the difference of the area of the drive section radial section and the active section radial section, suck pressure in this way
How power, discharge pressure and flow change, and hydraulic coupling suffered by plunger or piston component is in equilibrium state, effectively avoid because
Equipment damage and power loss caused by by working media hydraulic coupling imbalance, it is larger to can adapt to all kinds of suction pressures
It is pressurized operating mode, booster pump in the prior art is solved and is applicable in the fixed deficiency of working condition.
Description of the drawings
Fig. 1 is the structural schematic diagram for the conventional plunger reciprocating pump that the prior art provides；
Fig. 2 is the schematic diagram for the piston reciprocating type supercharging pump hydraulic end that the prior art provides；
Fig. 3 is the structural schematic diagram for the reciprocating intensifier pump that the embodiment of the present invention one provides；
Fig. 4 is the schematic diagram for the reciprocating intensifier pump that the embodiment of the present invention one provides；
Fig. 5 is the structural schematic diagram of reciprocating intensifier pump provided by Embodiment 2 of the present invention；
Fig. 6 is the schematic diagram of reciprocating intensifier pump provided by Embodiment 2 of the present invention；
In figure：100- power ends, 101- shells, 102- bent axles, 103- bearing shells, 104- connecting rods, 105- crossheads, 200- liquid
Power end, 201- pump heads, 202- plungers, 203- check valves, 204- balance pipes；
1- pump heads, A- suction inlets, C- outlets, 11- check valves, 12- check valves, B- working chambers, 13- thirds sealing member
Part, 2- plungers, 21- interludes, 22- drive sections, 23- active sections, 3- filler box assemblies, D- counter balance pockets, 31- stuffing boxes, 311-
Venthole, 32- pair stuffing boxes, 33- sealing rings, 34- cavitys, 35- pair stuffing box pressure caps, the first sealing elements of 36-, 37- second
Sealing element, 4- communicating passages, 41- first passages, 42- second channels, 43- balance pipes, 44- third channels, 5- shells；
6- piston components, 61- interludes, 62- drive sections, 63- active sections, 64- piston rods, 65- first pistons, 651-
Five sealing elements, 66- second pistons, the 6th sealing elements of 661-, 7- cylinder sleeve assemblies, 71- cylinder sleeves, 711- ventholes, 72- cylinder sleeves
Pressure cap, the 4th sealing elements of 73-, 8- communicating passages, 81- balance pipes, 82- fourth lanes, 83- Five-channels.
Four-headed arrow in Fig. 2, Fig. 4 represents the direction of plunger motion, and the four-headed arrow in Fig. 6 represents the fortune of piston component
Dynamic direction.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one
As shown in figure 3, a kind of reciprocating intensifier pump, including pump head 1 and the plunger 2 for being installed on pump head 1, pump head 1, which is equipped with, to be inhaled
Entrance A, outlet C, check valve 11 and check valve 12, pump head 1 is interior to be equipped with working chamber B, and filler box assembly is also equipped on pump head 1
3, plunger 2 runs through filler box assembly 3, and plunger 2 is three-level multi-diameter shaft, and plunger 2 is including interlude 21 and is located at 21 liang of interlude
The drive section 22 and active section 23 of side, the diameter of interlude 21 are more than the diameter of drive section 22, drive section 22 and reciprocating supercharging
The crosshead of pump connects, and active section 23 corresponds to working chamber B settings, is set between filler box assembly 3, drive section 22 and interlude 21
There is counter balance pocket D, communicating passage 4 is equipped between suction inlet A and counter balance pocket D.
The difference of the area of 22 radial section of area and drive section of 21 radial section of interlude and 23 radial section of active section
Area equation.
In the present embodiment, filler box assembly 3 includes the filler being fixedly mounted between the shell 5 of booster pump and pump head 1
Case 31, stuffing box 31 are sealed and installed with secondary stuffing box 32 close to the side of shell 5, are equipped between stuffing box 31 and secondary stuffing box 32
Sealing ring 33,32 part of secondary stuffing box stretch out stuffing box 31 and are equipped with cavity 34 between the two, be fixedly connected on secondary stuffing box 32
There is secondary stuffing box pressure cap 35.
It is equipped with the first sealing element 36 between stuffing box 31 and interlude 21, is equipped between secondary stuffing box 32 and drive section 22
Second sealing element 37, secondary stuffing box 32, drive section 22, interlude 21, the first sealing element 36 and the second sealing element 37 it
Between surround above-mentioned counter balance pocket D.
Certainly, filler box assembly 3 can also select the other manner that those skilled in the art can realize, such as will be above-mentioned
Stuffing box 31 and secondary stuffing box 32 are designed to overall structure etc., and details are not described herein.
In the present embodiment, above-mentioned communicating passage 4 includes that first passage 41, second channel 42, balance pipe 43 and third are logical
Road 44, first passage 41 is set on secondary stuffing box 32 and connection counter balance pocket D and cavity 34, one end of balance pipe 43 are fixedly installed in
Stuffing box 31, the other end are fixedly installed in pump head 1, and second channel 42 is set on stuffing box 31 and is connected to cavity 34 and balance pipe
43, third channel 44 is set on pump head 1 and equalizing pipe 43 and suction inlet A.
In order to ensure the sealing of working chamber B, third sealing element 13 is equipped between pump head 1 and active section 23.
In order to ensure that it is smooth that plunger 2 moves, stuffing box 31 is between the first sealing element 36 and third sealing element 13
Position offer venthole 311, pass through venthole 311 be connected to air.
It should be noted that above-mentioned first sealing element 36, the second sealing element 37 and third sealing element 13 are preferably
Sealing ring.Certainly, the first sealing element 36, the second sealing element 37 and third sealing element 13 can also select art technology
The other modes that personnel can realize, details are not described herein.
In order to make it easy to understand, with reference to the operation principle of Fig. 4 detailed analysis embodiment of the present invention one.
As shown in figure 4, making the face of the area and 22 radial section of drive section of 21 radial section of interlude by size matching
The area equation of the difference and 23 radial section of active section of product, i.e. counter balance pocket D act on annulus area S2-S3 and work on plunger 2
It is equal to make the area S1 that chamber B is acted on plunger 2, i.e.,
In formula：23 diameter of d1-active section；21 diameter of d2-interlude；22 diameter of d3-drive section.
If suction inlet A pressure is P0, working chamber B pressure is P1, and outlet C pressure is P2, and counter balance pocket D pressure is P3, by
In devising communicating passage 4, counter balance pocket D and suction inlet A pressure are identical always.
When plunger 2 moves to left, check valve 11 is opened at suction inlet A, P0=P1.P2>P1, outlet C check valve 12 is closed.
Simultaneously counter balance pocket D volume reduce, liquid from counter balance pocket D to suction inlet A, when communicating passage 4 designs suitable can approximation regard as
P3=P0, then approximation P3=P1.Since the counter balance pocket D annulus area S2-S3 and working chamber B acted on plunger 2 act on column
Area S1 on plug 2 is equal.The medium active force approximate equilibrium that plunger 2 is subject at this time.The external force that bent axle provides only overcomes plunger 2
Inertia and friction can be driven plunger 2 and be moved to the left.The liquid of counter balance pocket D discharges is the liquid bulk that working chamber B chambers enter
Product.
When plunger 2 moves right, outlet C check valves 12 are opened, P2=P1.P1>P0, suction inlet A check valve 11 closes
It closes.The volume of counter balance pocket D increases simultaneously, and liquid, equally can be close when communicating passage 4 designs suitable from suction inlet A to counter balance pocket D
Seemingly regard P3=P0 as.Then plunger 2 by medium active force resultant force to the left, F=P2 × S1-P0 (S2-S3), bent axle provides outer
Power need to overcome power F and friction and inertia to drive plunger to move to right, and high-pressure medium be pumped out, to achieve the purpose that supercharging.
In this way, no matter how suction pressure, discharge pressure and flow change, hydraulic coupling suffered by plunger 2 is in balance
State is effectively avoided because of equipment damage and power loss caused by by working media hydraulic coupling imbalance.It can adapt to all kinds of
The larger supercharging operating mode of suction pressure solves booster pump in the prior art and is applicable in the fixed deficiency of working condition.
Certainly, it can be seen that the reciprocating intensifier pump from above-mentioned analytic process and may be equally applicable for suction inlet and do not press
Power or the lower operating mode of pressure.
Embodiment two
As Fig. 5 and Fig. 6 jointly shown in, a kind of reciprocating intensifier pump, including pump head 1 and the piston group for being installed on pump head 1
Part 6, pump head 1 are equipped with suction inlet A, outlet C, check valve 11 and check valve 12, and working chamber B is equipped in pump head 1, is gone back on pump head 1
Cylinder sleeve assembly 7 is installed, piston component 6 runs through cylinder sleeve assembly 7, and piston component 6 is including interlude 61 and is located at interlude 61
The drive section 62 and active section 63 of both sides, the diameter of interlude 61 are more than the diameter of drive section 62, drive section 62 and reciprocating increasing
The crosshead of press pump connects, and active section 63 corresponds to working chamber B settings, is set between cylinder sleeve assembly 7, drive section 62 and interlude 61
There is counter balance pocket D, communicating passage 8 is equipped between suction inlet A and counter balance pocket D.
In the present embodiment, drive section 62 is piston rod 64, and interlude 61 is the first work of the body of rod set on piston rod 64
Plug 65, active section 63 are the second piston 66 set on 64 end of piston rod.In order to ensure to seal, first piston 65 is equipped with the 5th
Sealing element 651, second piston 66 are equipped with the 6th sealing element 661.
Cylinder sleeve assembly 7 includes the cylinder sleeve 71 being fixedly mounted between the shell 5 of booster pump 1 and pump head 1, is fixed on cylinder sleeve 71
It is connected with cylinder sleeve pressure cap 72, the 4th sealing element 73 is equipped between cylinder sleeve pressure cap 72 and piston rod 64；Cylinder sleeve 71, piston rod 64,
Above-mentioned counter balance pocket D is surrounded between first piston 65, cylinder sleeve pressure cap 72 and the 4th sealing element 73.
Certainly, cylinder sleeve assembly 7 can also select the other manner that those skilled in the art can realize, such as by above-mentioned cylinder
Set 71 is designed to separate structure etc., and details are not described herein.
In the present embodiment, communicating passage 8 includes balance pipe 81, fourth lane 82 and Five-channel 83, balance pipe 81
One end is fixedly installed in cylinder sleeve 71, and the other end is fixedly installed in pump head 1, and fourth lane 82 is set on cylinder sleeve 71 and connection counter balance pocket
D and balance pipe 81, Five-channel 83 is set on pump head 1 and equalizing pipe 81 and suction inlet A.
In order to ensure that it is smooth that piston component 6 moves, position of the cylinder sleeve 71 between first piston 65 and second piston 66
Offer venthole 711.
It should be noted that above-mentioned 4th sealing element 73 is preferably sealing ring, above-mentioned 5th sealing element the 651, the 6th
Sealing element 661 is preferably piston ring.Certainly, the 4th sealing element 73, the 5th sealing element 651, the 6th sealing element 661
The other modes that can select those skilled in the art that can realize, details are not described herein.
In order to make it easy to understand, with reference to the operation principle of Fig. 6 detailed analysis embodiment of the present invention two.
As shown in fig. 6, making the face of the area and 62 radial section of drive section of 61 radial section of interlude by size matching
The area equation of the difference and 63 radial section of active section of product, i.e. counter balance pocket D act on the annulus area S2-S3 on first piston 65
It is equal that the area S1 in second piston 66 is acted on working chamber B, i.e.,
In formula：66 diameter of d1-second piston；65 diameter of d2-first piston；64 diameter of d3-piston rod.
If suction inlet A pressure is P0, working chamber B pressure is P1, and outlet C pressure is P2, and counter balance pocket D pressure is P3, by
In devising communicating passage 8, counter balance pocket D and suction inlet A pressure are identical always.
When piston component 6 moves to left, check valve 11 is opened at suction inlet A, P0=P1.P2>P1, outlet C check valve 12
It closes.The volume of counter balance pocket D reduces simultaneously, and liquid, can be approximate when communicating passage 8 designs suitable from counter balance pocket D to suction inlet A
Regard P3=P0 as, then approximation P3=P1.The annulus area S2-S3 and working chamber B on first piston 65 is acted on due to counter balance pocket D
The area S1 acted in second piston 66 is equal.The medium active force approximate equilibrium that piston component 6 is subject at this time.Bent axle provides
External force only overcome the inertia of piston component 6 and friction to can be driven piston component 6 to be moved to the left.The liquid of counter balance pocket D discharges
The liquid volume that as working chamber B chambers enter.
When piston component 6 moves right, outlet C check valves 12 are opened, P2=P1.P1>P0, suction inlet A check valves
11 close.The volume of counter balance pocket D increases simultaneously, and liquid is same when communicating passage 8 designs suitable from suction inlet A to counter balance pocket D
Can approximation regard P3=P0 as.Then piston component 6 by medium active force resultant force to the left, F=P2 × S1-P0 (S2-S3), bent axle
The external force of offer need to overcome power F and friction and inertia to drive piston component 6 to move to right, and pump out high-pressure medium, increase to reach
The purpose of pressure.
Reciprocating intensifier pump provided by the invention, no matter how suction pressure, outlet pressure and flow change, column
Hydraulic coupling is in equilibrium state suffered by plug or piston component, effectively avoids because being set caused by by working media hydraulic coupling imbalance
Standby damage and power loss, versatility are good.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. reciprocating intensifier pump, including pump head and the plunger or piston component that are installed on the pump head, the pump head, which is equipped with, to be inhaled
Entrance and outlet, the pump head is interior to be equipped with working chamber, which is characterized in that filler box assembly or cylinder are also equipped on the pump head
Assembly is covered, the plunger runs through the cylinder sleeve assembly through the filler box assembly or the piston component；The plunger or institute
It includes interlude and drive section and active section positioned at the interlude both sides, the diameter of the interlude to state piston component
More than the diameter of the drive section, the active section corresponds to the working chamber setting, and the filler box assembly or the cylinder sleeve are total
At counter balance pocket is equipped between, the drive section and the interlude, it is equipped be connected between the suction inlet and the counter balance pocket and leads to
Road；The difference of the area of the area of the interlude radial section and the drive section radial section and the active section radial section
Area equation.
2. reciprocating intensifier pump according to claim 1, which is characterized in that the plunger is installed on the pump head, it is described
Filler box assembly includes the stuffing box being fixedly mounted between the shell of the booster pump and the pump head, and the stuffing box is close
The side of the shell is sealed and installed with secondary stuffing box, and the pair filler box part is stretched out the stuffing box and is equipped between the two
Cavity, it is described pair stuffing box on be fixedly connected with secondary stuffing box pressure cap；
It is equipped with the first sealing element between the stuffing box and the interlude, is set between the pair stuffing box and the drive section
There are the second sealing element, the pair stuffing box, the drive section, the interlude, first sealing element and described second
The counter balance pocket is surrounded between sealing element.
3. reciprocating intensifier pump according to claim 2, which is characterized in that the communicating passage includes first passage,
Two channels, balance pipe and third channel, the first passage is set on the secondary stuffing box and the connection counter balance pocket and described
One end of cavity, the balance pipe is fixedly installed in the stuffing box, and the other end is fixedly installed in the pump head, and described second is logical
Road is set on the stuffing box and is connected to the cavity and the balance pipe, and the third channel is set on the pump head and is connected to
The balance pipe and suction inlet.
4. reciprocating intensifier pump according to claim 2, which is characterized in that be equipped between the pump head and the active section
Third sealing element.
5. reciprocating intensifier pump according to claim 4, which is characterized in that the stuffing box is located at the first sealing member
Position between part and the third sealing element offers venthole.
6. reciprocating intensifier pump according to claim 1, which is characterized in that the piston component is installed on the pump head,
The drive section is piston rod, and the interlude is the first piston of the body of rod set on the piston rod, and the active section is to set
Second piston in the piston rod end.
7. reciprocating intensifier pump according to claim 6, which is characterized in that the cylinder sleeve assembly includes being fixedly mounted on institute
The cylinder sleeve between the shell of booster pump and the pump head is stated, cylinder sleeve pressure cap, the cylinder sleeve pressure cap are fixedly connected on the cylinder sleeve
The 4th sealing element is equipped between the piston rod；The cylinder sleeve, the piston rod, the first piston, the cylinder sleeve pressure
The counter balance pocket is surrounded between cap and the 4th sealing element.
8. reciprocating intensifier pump according to claim 7, which is characterized in that the communicating passage includes balance pipe, the 4th
One end of channel and Five-channel, the balance pipe is fixedly installed in the cylinder sleeve, and the other end is fixedly installed in the pump head, institute
Fourth lane is stated on the cylinder sleeve and is connected to the counter balance pocket and the balance pipe, the Five-channel is set to the pump head
Above and it is connected to the balance pipe and suction inlet.
9. reciprocating intensifier pump according to claim 8, which is characterized in that the first piston is equipped with the 5th sealing member
Part, the second piston are equipped with the 6th sealing element.
10. according to the reciprocating intensifier pump described in claim 7 or 8 or 9, which is characterized in that the cylinder sleeve is located at described first
Position between piston and the second piston offers venthole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818832.2A CN108757367A (en) | 2018-07-24 | 2018-07-24 | Reciprocating intensifier pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810818832.2A CN108757367A (en) | 2018-07-24 | 2018-07-24 | Reciprocating intensifier pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757367A true CN108757367A (en) | 2018-11-06 |
Family
ID=63971035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810818832.2A Pending CN108757367A (en) | 2018-07-24 | 2018-07-24 | Reciprocating intensifier pump |
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| Country | Link |
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| CN (1) | CN108757367A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209806A (en) * | 2018-11-19 | 2019-01-15 | 宁波修远机电有限公司 | A kind of reciprocating booster pump |
| CN110410311A (en) * | 2019-08-19 | 2019-11-05 | 宁波合力机泵股份有限公司 | A kind of hydraulic resistance balance reciprocating pump |
| CN117450040A (en) * | 2023-12-12 | 2024-01-26 | 北京杰利阳能源设备制造有限公司 | Dynamic balance system for plunger pump |
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