CN106917743B - A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body - Google Patents
A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body Download PDFInfo
- Publication number
- CN106917743B CN106917743B CN201710286144.1A CN201710286144A CN106917743B CN 106917743 B CN106917743 B CN 106917743B CN 201710286144 A CN201710286144 A CN 201710286144A CN 106917743 B CN106917743 B CN 106917743B
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- Prior art keywords
- plunger
- combination valve
- letter body
- hole
- pump housing
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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
- 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
- F04B53/02—Packing the free space between cylinders and pistons
-
- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming one unit
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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
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention relates to a kind of hydraulic end of plunger pump assemblies of conical surface location sealing letter body, including the interior pump housing equipped with plunger channel and combination valve passage, the plunger being movably arranged in plunger channel, the combination valve being located in combination valve passage, wherein plunger channel, which has, can be installed with the bellmouth of sealed letter body in one, sealed letter body is utilized with the conical surface that the taper wall surface of the hole matches and can be mounted in plunger channel to radial rotating；Equipped with the filler assembly for including pressure ring, main filler, main guide sleeve, counterbalance spring and spring base in sealed letter body, plunger is axially across filler assembly.By the way that a bellmouth is arranged in plunger channel, there is lock-bit using bellmouth to dispose sealed letter body, using in the plunger channel that sealed letter body is fixed on the pump housing into and out of the counterbalance spring of pressure and the self-styled setting of filler of medium, it is not required to the letter body being separately installed on again with bolt on the pump housing, the size of a letter body can be shortened for the length of pump, and the knot for reducing part tires out error, improves and repeats assembly precision, lowers the tired error of knot and eccentric wear is caused to improve the vulnerable part service life.
Description
Technical field
The present invention relates to plunger pump technique fields, more particularly to a kind of column using conical surface location sealing letter body
Fill in pump hydraulic end assembly.
Background technique
Traditional hydraulic end of plunger pump structure is usually that the letter body of installation filler uses bolt or step positioning to tighten and pumping
On body, the big outer diameter of letter body is positioned on the preceding facade inner hole of fuselage to realize that fluid power end plug is parallel with power end crosshead,
To ensure to take the air line when running: 1, through type (upper lower valve), referring to attached drawing 4；2, (liquid feed valve is vertical, tapping valve is sleeping for three way type
Formula), referring to attached drawing 5；3, horizontal (horizontal combination valve), referring to attached drawing 6.The fluid end of three kinds of different shape structures is in conveying oil
Field sewage corrodes serious stuffing box body disassembly difficulty, reliability with fluid end generally existing under conditions of corrosive liquids operating condition
Difference, the pump housing are easy the synthtic price index to crack, the vulnerable part valve group service life is short, are analyzed as follows respectively:
Through type fluid end is respectively four entire body structures, referring to attached drawing 4, when dismounting 11 ' of plunger, 12 ' of forward flange, briquetting
13 ' can be dismounted after laying down from front, dismount more convenient, lower end setting 15 ' of liquid feed valve of 16 ' of the pump housing, the upper end of 16 ' of the pump housing
14 ' of tapping valve is set, and since 16 ' of the pump housing is four entire body structures, there are right-angled intersection hole, two vertical hole intersections to belong to stress for inside
Often there is pump housing cracking in region of stress concentration in concentrated area.General operating pressure grade is in≤12.5Mpa.
Three way type fluid end is L-type structure, referring to attached drawing 5.22 ' of liquid feed valve is the operation of horizontal form, and tapping valve 5 is vertical
Form operation, when dismounting 26 ' of plunger, it is necessary to could dismount, grasp from front when laying down 23 ' of flange, 24 ' of pressing sleeve, 22 ' of liquid feed valve
Make more difficult.There are right-angled intersection holes inside 21 ' of the three way type structure pump housing, and the valve chamber hole of 22 ' of liquid feed valve is larger, in same pressure
This intracavitary intensity decline is severe under stress condition, within general actual motion pressure≤18Mpa, more than the pressure rating due to answering
Pump housing cracking caused by power fatigue also happens occasionally.
Horizontal fluid end is horizontal combination valve arrangement, referring to attached drawing 6, although the fluid end structure and four entire body knots
Structure, but 35 ' of plunger can be just removed after must first laying down 33 ' of flange, 32 ' of pressing sleeve, 31 ' of valve group when dismounting 35 ' of plunger, scene
It operates cumbersome.Avoided inside 34 ' of the pump housing two vertical hole cross regions, high-voltage alternating loading stress concentrate it is smaller,
Pump housing cracking caused by can improving because of corrosion and fatigue.Maximum pressure does not find the pump housing in 40Mpa operation in application at the scene
The phenomenon that being cracked by alternate stress appearance.It is preferable without applicable cases in granule medium in clear water.But horizontal combination valve is due to valve group
It is to be run in horizontal form, is easy to appear valve group friction phenomenon, especially oil field in recent years in produced-water reinjection engineering, medium contains
Situations such as sand, particle, suspended matter, is more serious.The problems such as normally emerged in operation particle causes card valve, abrasion, thorn leakage at the scene is general
Store-through exists.The comprehensive life of pump declines, and is not normally functioning, under the instruction of energy-saving and emission-reduction attaching importance to environmental protection state basic policy, the sewage in oil field
The underground progress displacement of reservoir oil can only be injected in time by discharging no other outlets.But since sewage treatment works amount is really too big, cost is again
Height, and oil field builds Sewage Disposal and does not often also catch up with actual needs, so sewage discharged in extraction crude oil returns at present
Note is completed by high pressure water-injection pump.
For above structure drawback, the applicant constantly research and develop and improve to traditional fluid end structure, such as
The related hydraulic end of plunger pump assembly patent (ZL 201320304293.3 and 20150690158.0) applied by the applicant, just
Having well solved conventional fluid torque end, the pump housing is easy the problem of cracking due to right-angled intersection hole intersection stress is concentrated, and combines
Valve can ensure that valve group work is smooth using vertical or inclined linear motion form, will not due to sand material, suspended matter card valve,
Effectively increase the gross efficiency of pump.But its shortcoming is installation side of the sealed letter body still without being detached from conventional fluid torque end structure
Formula, i.e. sealed letter body are mounted in pump housing plane, are fixed by bolts on the pump housing, the big outer diameter of letter body as with power terminal
Body positioning datum.Therefore the structure of hydraulic end of plunger pump is need to be further improved and perfect.
Summary of the invention
The technical problem to be solved by the present invention is to for the above-mentioned prior art provide a kind of structure novel, using the conical surface come
The hydraulic end of plunger pump assembly of location and installation sealed letter body, it not only makes filler dismounting become very convenient, and can be suitble to scene
Operation and Maintenance, and stress concentration point can be reduced, will not cracking the pump housing under high-voltage alternating stress condition, and further increase it
Comprehensive life.
The present invention solves technical solution used by above-mentioned technical problem are as follows: the plunger pump of this conical surface location sealing letter body
Fluid end assembly, comprising: the pump housing, the pump housing is interior to be equipped with the plunger channel being connected and combination valve passage；Plunger is movably arranged on column
It fills in channel；Combination valve is located in combination valve passage, and wherein the lower part of combination valve passage, group is arranged in the liquid feed valve of combination valve
The top of combination valve passage is arranged in the liquid valve for closing valve；It is characterized in that the plunger channel, which has in one, can be installed with sealed letter
The bellmouth of body, the sealed letter body utilize with the conical surface that the taper wall surface of the hole matches and can radial rotating ground location and installation
In the plunger channel；Be equipped in the axial central through hole of the sealed letter body include pressure ring, main filler, dominate to
The filler assembly of set, counterbalance spring and spring base, the plunger is axially across the filler assembly.
Preferably, the bellmouth both ends of the plunger channel are cylinder straight hole, the sealed letter body in addition to
Outside the conical surface that taper wall surface of the hole matches, also there is the cylindrical surface to match with cylinder straight hole, cylindrical surface, which is equipped with, to be used to be arranged
The annular groove and oilhole of sealing ring, the axial centre that oilhole penetrates through oiling duct and sealed letter body on the pump housing are logical
Hole.
The axial central through hole of the sealed letter body has the preceding cylinder straight hole for being used to install the filler assembly with after
Cylinder straight hole is separated between forward and backward cylinder straight hole by a undergauge hole and forms the front step and backward step of installing positioning；It is described
Rear cylinder straight hole be provided with secondary filler, secondary guide sleeve and the regulating nut being screwed onto hole；The oilhole may be provided in
At undergauge hole.
And a circular trough for surrounding plunger channel axle center is equipped on the plunger channel outerplanar of the pump housing, a positioning sleeve
Be located in the circular trough as with fuselage positioning datum.Sealed letter body is by conical surface location and installation in plunger channel in this way
Afterwards, make the pump housing that ring set positioning can be used with power end fuselage, change conventional letter body large cylindrical positioning, therefore position dismounting side
Just, it not will receive since fouling gets rusty and can not dismount letter body in sewage, can only be cut with oxygen existing dangerous at the scene
Factor.
And described filler assembly its rear end is positioned by the front step, the front end of filler assembly is covered by water ring to be positioned,
The water ring set is covered the counterbalance spring in positioning filler assembly by water ring in this way, is passed through by fixing with the flange that the pump housing is fixed
Flange is adjusted its sealed vol；The forward end seal step circumferential periphery of the water ring set is equipped with runner, for medium mistake
Stream.
Combination valve can be positioned below to be prevented in this way for porous suction chamber or taper suction chamber in the combination valve passage
The stress in the channel is concentrated and the pump housing that cracks.
And the admission chamber water collector being connected to the liquid feed valve of combination valve is additionally provided on the pump housing, the water collector and column
At parallel lines, the suction inlet of water collector is higher than the suction inlet of liquid feed valve in the channel of plug；In addition be additionally provided on the pump housing with
The exhaust chamber of the tapping valve connection of combination valve.
The combination valve can axially be fixed by a fixed elastic construction, in the soft bullet of upper ends one of combination valve
Property block fixed using the interference effect of elasticity, to ensure that valve group is indeformable.
The plunger channel can be arranged in center line at the V-type of non-90 degree angle with valve passage is combined, and make the combination valve be in
Inclined linear motion.
Compared with the prior art, the advantages of the present invention are as follows:
1, by the way that a bellmouth is arranged in plunger channel, there is lock-bit using bellmouth to dispose sealing
Letter body utilizes the plunger that sealed letter body is fixed on to the pump housing into and out of pressure and the counterbalance spring of the self-styled setting of filler of medium
In channel, it is not required to the letter body being separately installed on again with bolt on the pump housing, the size of a letter body can be shortened for the length of pump, and
And the knot for reducing part tires out error, improves and repeats assembly precision, lowers the tired error of knot and eccentric wear is caused to improve the vulnerable part service life.
2, since conical surface positioning reduces step positioning, to reduce stress concentration point, lower the risk of pump housing cracking.
3, it is ring set positioning with power end fuselage due to the pump housing, changes conventional letter body large cylindrical positioning, be positioned such that
Convenient disassembly is not will receive at the scene since fouling gets rusty and can not dismantle letter body in sewage, can only be cut with oxygen existing for
Insecurity factor.
4, it is fixed due to being placed in the endoceliac combination valve of pump using soft elasto block axially position, changes routine in this way
It is pulled out and is fastened by upper flange bolt with valve pocket, often valve pocket compressive strain is caused at the scene to take valve difficult, axial soft bullet
Property block fixed Combination valve, only flange bolt is tightened, combination valve is fixed using elastic interference, dismount it is very convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the pump housing of embodiment of the present invention inner cavity schematic diagram；
Fig. 3 is the structural schematic diagram of sealed letter of embodiment of the present invention body；
Fig. 4 is through type hydraulic end of plunger pump structure chart in the prior art；
Fig. 5 is three way type hydraulic end of plunger pump structure chart in the prior art；
Fig. 6 is horizontal hydraulic end of plunger pump structure chart in the prior art.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Please refer to shown in Fig. 1-Fig. 3, the fluid end assembly of conical surface location sealing letter body of the present invention mainly include the pump housing 1,
Plunger 12, sealed letter body 16, combination valve 2, filler assembly, secondary filler 14, water ring set 5, positioning sleeve 17 and water collector 3 etc.,
In:
The inner-cavity structure of the pump housing 1 is as shown in Fig. 2, the group for being internally provided with plunger channel 101 and being connected to plunger channel
Valve passage 103 is closed, two channel of the present embodiment, at the V-structure of non-90 degree angle, makes to be located in combination valve passage in center line
Combination valve is in inclined linear motion.The arrangement in certain two channel is not limited to this, combination valve can be used such as vertical straight line fortune
Dynamic T-shaped structure.Contain a bellmouth 106 in plunger channel 101, the neighbouring combination valve passage 103 of the bigger diameter end of bellmouth 106
Side, the both ends of bellmouth 106 are cylinder straight hole 105,107, the bellmouth 106 be as 16 positioning hole of sealed letter body,
Make sealed letter body 16 can radial 360 degree of rolling assemblings.
Sealed letter body 16 is located in plunger channel 101 using the conical surface, and rear end exposes to outside the pump housing 1.Its structure such as Fig. 3 institute
Show, it has the conical surface 163 that matches with 106 wall surface of bellmouth, and with bellmouth both ends cylinder straight hole 105,107 wall surface phases
Matched cylindrical surface.Cylindrical surface is equipped with the annular groove 162 and oilhole 164 for being used to that sealing ring is arranged, oilhole 164
Penetrate through the oiling duct on the pump housing and the axial central through hole 161 of sealed letter body.The axial central through hole 161 of sealed letter body 16 is in
Stepped hole, it has the preceding cylinder straight hole 167 for being used to install filler assembly and installs the rear cylinder straight hole 165 of secondary filler, forward and backward
Separated between cylinder straight hole by a undergauge hole 166, and forms the forward and backward step of installation airtight and watertight padding positioning.Lubrication above-mentioned
Oilhole 164 bores at undergauge hole 166.
Filler assembly is arranged in the preceding cylinder straight hole 167 of sealed letter body 16, it sequentially includes pressure ring 11, main filler
10, main guide sleeve 9, counterbalance spring 8, spring base 7 and preceding seat ring 6, before wherein the pressure ring 11 and preceding seat ring 6 at both ends pass through respectively
5 limit of step and water ring set.Water ring set 5 is fixed by the flange 4 fixed with the pump housing, the forward end seal step excircle of water ring set 5
The runner that side is equipped with for medium overcurrent.Counterbalance spring 8 collectively forms a packing seal and mends automatically with main guide sleeve 9, spring base 7
Mechanism is repaid, by the automatic front and back compensation of spring-force driven dual after wearing main filler 10.
Cylinder straight hole 165 is provided with secondary filler 14, secondary guide sleeve 15 and the adjustment cap 13 being screwed onto hole afterwards.When assembly,
Plunger 12 sequentially passes through above-mentioned adjustment cap 13, secondary guide sleeve 15, secondary filler 14, pressure ring 11, main filler 10, main guide sleeve 9, mends
Repay spring 8, spring base 7 and preceding seat ring 6, and it is movable be located in plunger channel 101, make under power end effect axial past
Multiple movement.
Combination valve 2 is located in plunger channel 103, and the liquid feed valve 18 of combination valve is located at the lower part of combination valve passage, combination valve
Tapping valve 21 be located at combination valve passage top.The admission chamber being connected to the liquid feed valve of combination valve is provided on the pump housing 1 to catchment
At parallel lines, the suction inlet of water collector is higher than the suction inlet of liquid feed valve in the channel of device 3, the water collector and plunger；Described in addition
The exhaust chamber being connected to the tapping valve of combination valve is additionally provided on the pump housing.Combination valve 2 is consolidated axially through a fixed elastic construction
Fixed, i.e., the axial restraint of combination valve does not lean on traditional valve pocket compression type to fix, and is set as upper ends resilient sleeve 19, soft elasto
Block 20 is fixed using the interference effect of elasticity, it is ensured that valve group is indeformable.In order to be better protected from combination valve passage stress collection
In and so that the pump housing is cracked, the combination valve passage being located at below combination valve is designed in step-like porous suction chamber 102, or is bored
Shape suction chamber.
A circular trough 104 for surrounding plunger channel axle center, positioning sleeve 17 are equipped in the plane outside the plunger channel of the pump housing 1
Be located in the circular trough 104, as with fuselage positioning datum.Sealed letter body 16 is logical in plunger by conical surface location and installation in this way
After in road 101, make the pump housing 1 that ring set positioning can be used with power end fuselage, changes conventional letter body large cylindrical positioning, therefore fixed
Position is convenient for disassembly and assembly, is not will receive at the scene since fouling gets rusty and can not dismount letter body in sewage, oxygen cutting can only be used to exist
Insecurity factor.
Working principle of the present invention is as follows: liquid feed valve 18 is opened when plunger 12 moves backward, liquid feed liquor from inlet opening,
Full of 101 cavity of plunger channel；Liquid feed valve 18 is closed when plunger 12 travels forward, and plunger holds cavity pressure and increases, tapping valve 21
It opens, liquid is discharged out of exhaust chamber, and reciprocation cycle carries out.
It is close due to device filler 10, guide sleeve 9, pressure ring 11, counterbalance spring 8, counterbalance spring seat 7 in sealed letter body 16
It is tight to pull out that packing body 16 couples bolt useless with the pump housing 1, fixes by the pressure medium of the self-locking and end face of the conical surface.Work as plunger
12 when running forward, intracavitary pressure rise, and the end face of sealed letter body 16 is pressurized the cone being lockable in the plunger channel 101 of the pump housing
On face；Plunger 12 moves backward when, intracavitary inlet pressure adds counterbalance spring power to lock sealed letter body 16.
Due to being provided with a bellmouth 106 in the plunger channel 101 of the fluid end pump housing 1 of the invention, bellmouth is utilized
There is lock-bit, to dispose sealed letter body 16, using medium into and out of pressure and the counterbalance spring of the self-styled setting of filler
8 are fixed on sealed letter body 16 in the plunger channel 101 of the pump housing, overcome the difficulty of maintenance dismounting letter body, improve letter body
The precision for repeating installation has saved the cost of manufacture letter body, has improved the safety coefficient of high casting die.
But the foregoing is merely the preferred embodiment of the present invention, in addition to the present embodiment as shown in the figure other than, can also carry out not
It with remodeling or improves, without limiting to this.
Claims (10)
1. a kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body, comprising:
The pump housing, the pump housing is interior to be equipped with the plunger channel being connected and combination valve passage；
Plunger is movably arranged in plunger channel；
Combination valve is located in combination valve passage, and wherein the lower part of combination valve passage is arranged in the liquid feed valve of combination valve, combination valve
The top of combination valve passage is arranged in liquid valve；
It is characterized by: the plunger channel has the bellmouth that can be installed with sealed letter body in one, and the bigger diameter end of bellmouth
The side of neighbouring combination valve passage；The sealed letter body utilize with the conical surface that the taper wall surface of the hole matches and can radial rotating
Ground location and installation is in the plunger channel；Being equipped in the axial central through hole of the sealed letter body includes pressure ring, master
Filler, main guide sleeve, counterbalance spring and spring base filler assembly, the plunger is axially across the filler assembly.
2. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: the bellmouth both ends of the plunger channel are
Cylinder straight hole, the corresponding sealed letter body also have and cylinder straight hole other than the conical surface to match with taper wall surface of the hole
The cylindrical surface to match, cylindrical surface are equipped with the annular groove and oilhole for being used to that sealing ring is arranged, oilhole perforation pump
The axial central through hole in oiling duct and sealed letter body on body.
3. hydraulic end of plunger pump assembly as claimed in claim 2, it is characterised in that: the axial central through hole of the sealed letter body
With the preceding cylinder straight hole and rear cylinder straight hole for being used to install the filler assembly, by a undergauge between forward and backward cylinder straight hole
Hole separates and is formed the front step and backward step of installation positioning；The rear cylinder straight hole is provided with secondary filler, secondary guide sleeve
With the regulating nut being screwed onto hole.
4. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: in the plunger channel outerplanar of the pump housing
Be equipped with a circular trough for surrounding plunger channel axle center, a positioning sleeve be located in the circular trough as with fuselage positioning datum.
5. hydraulic end of plunger pump assembly as claimed in claim 3, it is characterised in that: the oilhole is located at undergauge hole
Place.
6. hydraulic end of plunger pump assembly as claimed in claim 3, it is characterised in that: the filler assembly rear end is by described
Front step positioning, the front end of filler assembly is covered by water ring to be positioned, and the water ring set with the flange that the pump housing is fixed by fixing；It is described
Water ring set forward end seal step circumferential periphery be equipped with for medium overcurrent runner.
7. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: in the combination valve passage under combination valve
Side is set as porous suction chamber or taper suction chamber.
8. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: be provided on the pump housing and combination valve
Liquid feed valve connection admission chamber water collector, the channel of the water collector and plunger at parallel lines, the suction inlet of water collector be higher than into
The suction inlet of liquid valve；In addition the exhaust chamber being connected to the tapping valve of combination valve is additionally provided on the pump housing.
9. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: the combination valve is axially through a fixed bullet
Property structure fix, i.e., fixed in the upper ends of combination valve one soft elasto blocks using the interference effect of elasticity.
10. hydraulic end of plunger pump assembly as described in claim 1, it is characterised in that: the plunger channel and combination valve is logical
Road is arranged in center line at the V-type of non-90 degree angle, makes combination valve in inclined linear motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286144.1A CN106917743B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286144.1A CN106917743B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body |
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| Publication Number | Publication Date |
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| CN106917743A CN106917743A (en) | 2017-07-04 |
| CN106917743B true CN106917743B (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286144.1A Active CN106917743B (en) | 2017-04-27 | 2017-04-27 | A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165797B (en) * | 2017-07-19 | 2019-12-06 | 宁波合力机泵股份有限公司 | Reciprocating pump with optimized connection of power end and hydraulic end |
| CN107956664A (en) * | 2017-12-05 | 2018-04-24 | 宁波合力机泵股份有限公司 | A kind of detergent slurry delivery pump fluid end |
| CN108799038B (en) * | 2018-06-06 | 2024-05-07 | 广州富森环保科技股份有限公司 | Ultrahigh pressure plunger pump fluid end |
| CN108843531B (en) * | 2018-09-03 | 2024-02-02 | 宁波合力机泵股份有限公司 | Plunger pump fluid end for conveying liquid carbon dioxide and other gas-containing media |
| CN109458325B (en) * | 2019-01-04 | 2023-09-19 | 宁波合力机泵股份有限公司 | Combined valve applied to double-acting reciprocating pump |
| CN109723635B (en) * | 2019-03-13 | 2024-02-23 | 宁波合力机泵股份有限公司 | Reciprocating pump hydraulic end for injecting sand-containing medium in oil field |
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| CN206035790U (en) * | 2016-09-23 | 2017-03-22 | 宁波合力机泵股份有限公司 | Horizontal combination valve fluid end |
| CN206845449U (en) * | 2017-04-27 | 2018-01-05 | 宁波合力机泵股份有限公司 | A kind of hydraulic end of plunger pump assembly of conical surface location sealing letter body |
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- 2017-04-27 CN CN201710286144.1A patent/CN106917743B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6544012B1 (en) * | 2000-07-18 | 2003-04-08 | George H. Blume | High pressure plunger pump housing and packing |
| US6623259B1 (en) * | 2002-05-06 | 2003-09-23 | George H. Blume | High pressure plunger pump housing and packing |
| CN104763628A (en) * | 2015-03-27 | 2015-07-08 | 宁波合力机泵有限公司 | Fluid end of plunger-type reciprocating pump and plunger-type reciprocating pump using the fluid end |
| CN105221407A (en) * | 2015-10-22 | 2016-01-06 | 宁波合力机泵有限公司 | A kind of hydraulic end of plunger pump assembly |
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|---|---|
| CN106917743A (en) | 2017-07-04 |
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Inventor after: Chen Minghai Inventor after: Nie Bin Inventor before: Chen Minghai |