CN204476678U - A kind of reciprocating plunger pump - Google Patents
A kind of reciprocating plunger pump Download PDFInfo
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- CN204476678U CN204476678U CN201420844515.5U CN201420844515U CN204476678U CN 204476678 U CN204476678 U CN 204476678U CN 201420844515 U CN201420844515 U CN 201420844515U CN 204476678 U CN204476678 U CN 204476678U
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- valve
- liquid feed
- cam
- feed valve
- reciprocating plunger
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to a kind of reciprocating plunger pump, include liquid feed valve, this liquid feed valve comprises valve seat, is arranged on the spool in valve seat, it is characterized in that: described liquid feed valve is opened by liquid feed valve driving mechanism, described liquid feed valve driving mechanism comprises: the rotating shaft can rotated under external force drives; Cam, the inner hole sleeve of this cam is located at outside rotating shaft; Push rod, first end and the spool of this push rod offset, and the second end of this push rod is provided with castor, and this castor contacts with aforementioned cam outer rim and offsets; When aforementioned rotation axis rotates under external force drives, described cam can be driven to rotate, the rotation of cam promotes castor and push rod moves reciprocatingly, thus backs down the ball valve core of liquid feed valve by push rod, thus liquid feed valve is opened.Compared with prior art, the utility model backs down liquid feed valve by cam-shaped line face, in moment, valve is risen to high-order formation and entirely opens suction and reduce feed liquor flow velocity, make it valve clearance and reach maximization, guarantee that liquid is unimpeded and enter in valve pocket.
Description
Technical field
The utility model relates to a kind of reciprocating plunger pump.
Background technique
Reciprocating plunger pump is displacement pump, and the medium of main conveying is generally water, oil, chemical agent, emulsion, polymer, mud, ore pulp and the various liquid with viscosity corrosion.The feature of reciprocating plunger pump has that pressure is high, high to realize automatic control scope large for pump efficiency, can keep constant pressure all the time, be particularly suitable for applying in oil-field flooding frequency modulation energy-saving operating mode in frequency modulation tune amount.The efficiency of reciprocating plunger pump and the working state of valve group closely related, the leakage of valve can affect the volumetric coefficient of pump, and the keying of valve is delayed also directly affects pump efficiency, and will improve pump efficiency to the medium with viscosity is a difficult matter.Conventional reciprocating plunger pump is when carrying with viscosity or the higher medium of viscosity, and valve group is generally all subject to the impact of dielectric viscosity, makes the unlatching of valve or closes delayed, increases the leakage rate of valve thus seriously reduces the efficiency of pump.Along with the scope of medium and viscosity increases, the decrease in efficiency 10% ~ 30% of pump is larger time serious.In old filed tertiary oil recovery polymer injection technique, the long-time displacement of reservoir oil by filling water of the structure due to stratum there will be a lot of major path in various degree, reaches oil displacement efficiency to block these passages, often takes to note the thick liquids such as the larger polymer of viscosity.At the full-bodied medium of injection, the pump efficiency of current reciprocating pump generally all only has about 70%, and some meetings are lower.Efficiency due to pump is low can not normally be opened and closed relevant with valve group in viscous medium, cause polymer retention in pump chamber to increase, cause shear fracture also to the molecular chain of polymer, make it to reduce viscosity retention ratio, increase and inject cost (see Fig. 1).So when injecting high viscosity medium, pump efficiency improved, for being very crucial in the open and close process of pump valve.It is delayed that theory and practice proves really to have very large valve work.Under energy-saving and emission-reduction situation, require to inject high viscosity medium and improve pump efficiency, developing a kind of high viscosity medium, to reach high efficiency reciprocating plunger pump in conveying be a thing highly significant.
Model utility content
Technical problem to be solved in the utility model provides a kind of reciprocating plunger pump for above-mentioned prior art, energy enforced opening liquid feed valve, change conventional reciprocating plunger pump plunger suck time by degree of vacuum to open liquid feed valve, overcoming the problem of low, the low load with strong power of pump efficiency when noting high viscosity medium, improving the viscosity-reducing rate that pump efficiency lowers polymer.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of reciprocating plunger pump, include liquid feed valve, this liquid feed valve comprises valve seat, be arranged on the spool in valve seat, it is characterized in that: described liquid feed valve is opened by liquid feed valve driving mechanism, described liquid feed valve driving mechanism comprises:
The rotating shaft can rotated under external force drives;
Cam, the inner hole sleeve of this cam is located at outside rotating shaft;
Push rod, first end and the spool of this push rod offset, and the second end of this push rod is provided with castor, and this castor contacts with aforementioned cam outer rim and offsets;
When aforementioned rotation axis rotates under external force drives, described cam can be driven to rotate, the rotation of cam promotes castor and push rod moves reciprocatingly, thus backs down the ball valve core of liquid feed valve by push rod, thus liquid feed valve is opened.
As improvement, be provided with the block offseted with spool, be provided with guide rod above block in the valve seat of described liquid feed valve, this guide rod overcoat has feed liquor spring; Be provided with spacing chock plug in the valve seat of described liquid feed valve, this spacing chock plug bottom arranges tubular channel, and the top movable of described guide rod is arranged in this tubular channel; One end and the described spacing chock plug of described feed liquor spring offset, and the other end and the described block of described feed liquor spring offset.
In liquid feed valve, spring is set, closes instantaneously to increase spring force, and do not allow the refluence of liquid feed valve liquid greatly reduce the retardation angle of valve.
Improve, described rotating shaft is the bent axle extending end of reciprocating pump again, this rotating shaft synchronous axial system during the crank rotation of reciprocating pump.
Improve, the endoporus of described cam is provided with internal tooth again, and the endoporus of described cam is provided with slot, described rotating shaft is movably equipped with the shift fork that can insert in described slot.
Improve, the cam outside described rotating shaft is provided with three again, matches respectively with three cylinder positions of reciprocating plunger pump, and each cam is to having one group of liquid feed valve and liquid feed valve driving mechanism; In addition, in described rotating shaft, be provided with axial bore, in this axial bore, be provided with the adjustable lever that three are used for adjusting phase place.
Improve, the outer excircle place corresponding with three cam endoporus internal tooths of described rotating shaft is provided with the outer flank of tooth that one piece of energy engages with cam endoporus internal tooth, 120 degree, interval between three pieces of outer flank of tooth again.
Preferably, the outer rim of described cam is Archimedes's shape line.
Improve again, described liquid feed valve is arranged in the feed liquor pump housing, and the feed liquor pump housing is the assembly assembly being provided with liquid feed valve and feed liquor pipeline, fluid pipeline, and the feed liquor pump housing is positioned at fuel tank shell top, liquid feeding pump intracoelomic cavity fixes liquid feed valve, and bottom and push rod form a reciprocating movable rubbing surface; Feed liquor pipeline one end connects with medium feed flow house steward, and one end connects with the feed liquor pump housing, guarantees that liquid feed valve feed flow is smooth and easy without hindrance; Tapping line one end connects admission chamber when sucking as plunger with the pump housing lower end of reciprocating plunger pump, and the other end connects the transfer line for sucking medium when liquid feed valve is opened with the feed liquor pump housing.
Improve, be provided with fuel tank shell below the described feed liquor pump housing, fuel tank shell and the feed liquor pump housing are assembly parts, are fixed on the bearing flange step of reciprocating plunger pump, pin with Luo Zhu; Being provided with seal ring below the feed liquor pump housing prevents medium from flowing in fuel tank shell.
Improve, reciprocating plunger pump liquid discharging valve is arranged in the pump housing of reciprocating plunger pump liquid discharging valve again, and the pump housing of reciprocating plunger pump liquid discharging valve and the feed liquor pump housing are separation structure, and the feed liquor pump housing is arranged on the bent axle extending end of reciprocating plunger pump
Compared with prior art, the utility model has the advantage of: the unlatching that the utility model overcomes liquid feed valve is delayed, change conventional plunger by taking the enforced opening of liquid feed valve and open liquid feed valve when sucking by degree of vacuum, when medium has viscosity often valve unlatching, close all exist delayed, cause that pump valve suction performance is low, flow loss is large, the utility model backs down liquid feed valve by cam-shaped line face, in moment, valve is risen to high-order formation entirely to open suction and reduce feed liquor flow velocity, make it valve clearance and reach maximization, guarantee that liquid is unimpeded and enter in valve pocket; In addition, in improvement project, liquid feed valve is provided with spring, closes instantaneously to increase spring force, and does not allow the refluence of liquid feed valve liquid greatly reduce the retardation angle of valve, and in high viscosity medium, the breakdown of valve is closed to obtain and ensured smoothly.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of liquid feed valve assembly in the utility model embodiment;
Fig. 2 be in Fig. 1 A to schematic diagram;
Fig. 3 is the structural representation of reciprocating plunger pump in the utility model embodiment;
Fig. 4 is the internal structure schematic diagram of reciprocating plunger pump in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Below for the reciprocating plunger pump of triplex structure, describe structure of the present utility model in detail, three cylinder reciprocating plunger pumps as shown in Figure 3 and Figure 4, comprise the pump housing 17, three groups of liquid discharging valve assemblies 18 are provided with in the pump housing 17, the pump housing 17 outer installment has three groups of liquid feed valve assemblies, and this liquid feed valve assembly comprises liquid feed valve and liquid feed valve driving mechanism.Wherein liquid feed valve comprises valve seat 7, be provided with in valve seat 7: spherical valve core 8, the block 19 offseted with spherical valve core 8, guide rod 9 is provided with above block 19, this guide rod 9 overcoat has feed liquor spring 10, spacing chock plug 11, this spacing chock plug 11 bottom arranges tubular channel, and the top movable of described guide rod 9 is arranged in this tubular channel; One end and the described spacing chock plug 11 of described feed liquor spring 10 offset, and the other end and 19 pieces, the described gear of described feed liquor spring 10 offset.And liquid feed valve driving mechanism comprises: the rotating shaft 1 can rotated under external force drives; Be set in the cam 2A outside rotating shaft, and two other cam label is 2B, 2C, push rod 12, first end and the spool 8 of this push rod offset, and the second end of this push rod 12 is provided with castor 13, and this castor 13 contacts with aforementioned cam 2A outer rim and offsets; When aforementioned rotation axis rotates under external force drives, described cam can be driven to rotate, the rotation of cam promotes castor and push rod moves reciprocatingly, thus backs down the ball valve core of liquid feed valve by push rod, thus liquid feed valve is opened.Namely rotating shaft 1 rotates clockwise band moving cam 2A, 2B, 2C and does 360 ° of rotation, and cam outer rim shape line face promotes free wheel 13, push rod 12 moves back and forth, and backs down spool 8 form liquid feed valve unlatching liquid and enter in chamber by push rod 12.Close liquid feed valve, answered back by spring 10 and reach liquid feed valve closedown, medium is discharged, shown in Figure 1.
The cylindrical of three cams 2A, 2B, 2C is Archimedes's shape line, according to the stroke of pump, the shape line of the breakdown height setting camming surface of valve group, length direction, the endoporus of three cams 2A, 2B, 2C is provided with internal tooth, the endoporus of three cams 2A, 2B, 2C is provided with slot, described rotating shaft 1 is movably equipped with shift fork 5A, 5B, the 5C that can insert in described slot.
Aforementioned rotation axis 1 is the bent axle extending end of reciprocating pump, this rotating shaft synchronous axial system during the crank rotation of reciprocating pump, the outer excircle place corresponding with three cam 2A, 2B, 2C endoporus internal tooths of described rotating shaft is provided with the outer flank of tooth that one piece of energy engages with cam endoporus internal tooth, three pieces of outer flank of tooth are not on the same axis line, and 120 degree, interval between the axis at three pieces of outer flank of tooth places.Three pieces of outer flank of tooth outside rotating shaft 1 are intended for the benchmark changing position when changing phase place, the setting position not outer flank of tooth mutual noninterference with outer piece of aforementioned shift fork 5A, 5B, 5C.
In addition, axial bore is provided with in rotating shaft 1, the adjustable lever 3A that three are used for adjusting phase place is provided with in this axial bore, 3B, 3C, three adjustable lever 3A, 3B, 3C presses cylinder position and determines, each cylinder installs one, three adjustable lever 3A, 3B, 3C locates mutually, according to three cam 2A, 2B, 2C displacement scale arranges three adjustable lever 3A, 3B, the spacing hole on 3C surface, three adjustable lever 3A, 3B, the spacing hole on 3C surface is used for and shift fork 5A, 5B, 5C coordinates, by three adjustable lever 3A, 3B, the spacing hole location on 3C surface fixes three cam 2A, 2B, the axial position of 2C, concrete: the 3rd adjustable lever 3A is arranged on penetralia, fixed by locating stud 4A and rotating shaft 1, second adjustable lever 3B is enclosed within outside the 3rd adjustable lever 3A, fixed by locating stud 4B and rotating shaft 1, first adjustable lever 3A is enclosed within outside the second adjustable lever 3B, fixed by locating stud 4A and rotating shaft 1, shown in Figure 1, can according to when determining to adjust certain cylinder phase place when needs adjustment phase place, directly the required adjustable lever of pull-out is on room, after rotating, adjustable lever is pushed position make corresponding cam in place, shown in Fig. 1 and Fig. 2 according to required angle by circular dial scale value.The spacing hole on three adjustable lever 3A, 3B, 3C surfaces is provided with sealing and prevents leakage of oil, three adjustable lever cylindricals are all arranged one spacing for cam change phase rotating time locate, three adjustable levers, by rotating shaft synchronous rotary, are provided with at three adjustable lever end faces the relation that calibration gauge gage decides liquid feed valve breakdown and phase place.
Described push rod 12 end face is installed castor 13 and is connected with cam 2A, and when cam 2A rotates, the surperficial reciprocating ball valve that withstands of free wheel rotation push rod 12 that pushes up reaches liquid feed valve unlatching liquid as breakdown and enters in liquid feed valve and discharge opeing valve pocket.
Described liquid feed valve is arranged in the feed liquor pump housing 6, the feed liquor pump housing 6 is the assembly assemblies being provided with liquid feed valve and feed liquor pipeline 14, fluid pipeline 15, the feed liquor pump housing 6 is positioned at fuel tank shell 16 top, and the feed liquor pump housing 6 inner chamber fixes liquid feed valve, and bottom and push rod form a reciprocating movable rubbing surface; Feed liquor pipeline 14 one end connects with medium feed flow house steward, and one end connects with the feed liquor pump housing, guarantees that liquid feed valve feed flow is smooth and easy without hindrance; Tapping line one end connects admission chamber when sucking as plunger with the pump housing 17 lower end of reciprocating plunger pump, and the other end connects the transfer line for sucking medium when liquid feed valve is opened with the feed liquor pump housing, shown in Figure 3.
Be provided with fuel tank shell 16 below the described feed liquor pump housing 6, the fuel tank shell plane rising surface at axle is carved with circle and turns scale value and be used for changeable phases benchmark, fuel tank shell and the feed liquor pump housing are assembly parts, are fixed on the bearing flange step 20 of reciprocating plunger pump, pin with Luo Zhu; Being provided with seal ring below the feed liquor pump housing 6 prevents medium from flowing in fuel tank shell.
Reciprocating plunger pump liquid discharging valve is arranged in the pump housing of reciprocating plunger pump liquid discharging valve, and the pump housing of reciprocating plunger pump liquid discharging valve and the feed liquor pump housing are separation structure, and the feed liquor pump housing is arranged on the bent axle extending end of reciprocating plunger pump.
Reciprocating type plunger pump structure of the present utility model, spool is backed down by brute force, the medium making viscosity higher also can enter in feed liquor valve pocket smoothly, spool backs down by push rod brute force, by the unlatching of viscosity influence valve of medium, mix the spring compared with strong spring power, it is very little that such valve shape spool closes timely retardation angle simultaneously, the volumetric coefficient of pump improves, and pump efficiency also improves simultaneously.
The reciprocating pump that the utility model provides is compared with conventional reciprocating pump, the unlatching of liquid feed valve is realized by cam-shaped line face, opening speed is fast, lift is high, velocity of medium is slow, close and realize by brute spring, this overcoming high viscosity medium, to suck the efficiency that causes of dielectric hysteresis when carrying by the degree of vacuum of plunger backhaul low, the retardation angle of the minimizing valve work that various factors causes can be eliminated in the opening process of liquid feed valve, improve the suction efficiency of valve.
In addition, the reciprocating pump of the triplex structure that the present embodiment provides, the phase place of adjustment liquid feed valve can realize the variable function of pump, so adjustment phase place is exactly the keying changing conventional reciprocating pump plunger and liquid feed valve synchronously carry out situation.When plunger is toward when moving ahead, liquid feed valve is not closed, and liquid discharging valve is not opened, now medium back flow, closes, carry out discharge opeing, so just reach Variable quantity effect when liquid discharging valve is opened to liquid feed valve.No matter any liquid medium can realize variable effect, can set and need flow value to meet working condition requirement.
In addition, cam mechanism structure opens liquid feed valve, improve lift valve speed and also reduce the shock of liquid feed valve when closing simultaneously, because open valve and the valve closing of cam mechanism structure are all synchronously carry out with dynamic rotation, so liquid feed valve close time while medium fills mutually, cam is operationally hold in the palm the closedown of feed liquor spool, so decrease Strike note and close vibrations.
Claims (10)
1. a reciprocating plunger pump, includes liquid feed valve, and this liquid feed valve comprises valve seat, is arranged on the spool in valve seat, it is characterized in that: described liquid feed valve is opened by liquid feed valve driving mechanism, and described liquid feed valve driving mechanism comprises:
The rotating shaft can rotated under external force drives;
Cam, the inner hole sleeve of this cam is located at outside rotating shaft;
Push rod, first end and the spool of this push rod offset, and the second end of this push rod is provided with castor, and this castor contacts with aforementioned cam outer rim and offsets;
When aforementioned rotation axis rotates under external force drives, described cam can be driven to rotate, the rotation of cam promotes castor and push rod moves reciprocatingly, thus backs down the ball valve core of liquid feed valve by push rod, thus liquid feed valve is opened.
2. reciprocating plunger pump according to claim 1, is characterized in that: be provided with the block offseted with spool in the valve seat of described liquid feed valve, be provided with guide rod above block, and this guide rod overcoat has feed liquor spring; Be provided with spacing chock plug in the valve seat of described liquid feed valve, this spacing chock plug bottom arranges tubular channel, and the top movable of described guide rod is arranged in this tubular channel; One end and the described spacing chock plug of described feed liquor spring offset, and the other end and the described block of described feed liquor spring offset.
3. reciprocating plunger pump according to claim 1, is characterized in that: described rotating shaft is the bent axle extending end of reciprocating pump, this rotating shaft synchronous axial system during the crank rotation of reciprocating pump.
4. the reciprocating plunger pump according to claim 1 or 2 or 3, it is characterized in that: the endoporus of described cam is provided with internal tooth, the endoporus of described cam is provided with slot, described rotating shaft is movably equipped with the shift fork that can insert in described slot.
5. reciprocating plunger pump according to claim 4, is characterized in that: the cam outside described rotating shaft is provided with three, matches respectively with three cylinder positions of reciprocating plunger pump, and each cam is to having one group of liquid feed valve and liquid feed valve driving mechanism; In addition, in described rotating shaft, be provided with axial bore, in this axial bore, be provided with the adjustable lever that three are used for adjusting phase place.
6. reciprocating plunger pump according to claim 5, is characterized in that: the outer excircle place corresponding with three cam endoporus internal tooths of described rotating shaft is provided with the outer flank of tooth that one piece of energy engages with cam endoporus internal tooth, 120 degree, interval between three pieces of outer flank of tooth.
7. reciprocating plunger pump according to claim 1 and 2, is characterized in that: the outer rim of described cam is Archimedes's shape line.
8. reciprocating plunger pump according to claim 1, it is characterized in that: described rotating shaft is: described liquid feed valve is arranged in the feed liquor pump housing, the feed liquor pump housing is the assembly assembly being provided with liquid feed valve and feed liquor pipeline, fluid pipeline, the feed liquor pump housing is positioned at fuel tank shell top, liquid feeding pump intracoelomic cavity fixes liquid feed valve, and bottom and push rod form a reciprocating movable rubbing surface; Feed liquor pipeline one end connects with medium feed flow house steward, and one end connects with the feed liquor pump housing, guarantees that liquid feed valve feed flow is smooth and easy without hindrance; Tapping line one end connects admission chamber when sucking as plunger with the pump housing lower end of reciprocating plunger pump, and the other end connects the transfer line for sucking medium when liquid feed valve is opened with the feed liquor pump housing.
9. reciprocating plunger pump according to claim 7, is characterized in that: be provided with fuel tank shell below the described feed liquor pump housing, and fuel tank shell and the feed liquor pump housing are assembly parts, are fixed on the bearing flange step of reciprocating plunger pump, pin with Luo Zhu; Being provided with seal ring below the feed liquor pump housing prevents medium from flowing in fuel tank shell.
10. reciprocating plunger pump according to claim 7, it is characterized in that: reciprocating plunger pump liquid discharging valve is arranged in the pump housing of reciprocating plunger pump liquid discharging valve, the pump housing of reciprocating plunger pump liquid discharging valve and the feed liquor pump housing are separation structure, and the feed liquor pump housing is arranged on the bent axle extending end of reciprocating plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844515.5U CN204476678U (en) | 2014-12-26 | 2014-12-26 | A kind of reciprocating plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844515.5U CN204476678U (en) | 2014-12-26 | 2014-12-26 | A kind of reciprocating plunger pump |
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| Publication Number | Publication Date |
|---|---|
| CN204476678U true CN204476678U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420844515.5U Expired - Fee Related CN204476678U (en) | 2014-12-26 | 2014-12-26 | A kind of reciprocating plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204476678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514695A (en) * | 2014-12-26 | 2015-04-15 | 宁波合力机泵有限公司 | Reciprocating type plunger pump |
| CN105257500A (en) * | 2015-10-23 | 2016-01-20 | 胡学文 | Mini-type high-pressure immersed pump |
-
2014
- 2014-12-26 CN CN201420844515.5U patent/CN204476678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514695A (en) * | 2014-12-26 | 2015-04-15 | 宁波合力机泵有限公司 | Reciprocating type plunger pump |
| CN105257500A (en) * | 2015-10-23 | 2016-01-20 | 胡学文 | Mini-type high-pressure immersed pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315105, integrity investment Road, Yinzhou District investment center, Ningbo, Zhejiang, Yinzhou 888 Patentee after: Ningbo Heli pump Limited by Share Ltd Address before: 315105 Yinzhou investment and entrepreneurship center, Ningbo, road, No. 888 Patentee before: Heli Mechanical Pump Co., Ltd., Ningbo City |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 315105 Yinzhou District investment and entrepreneurship center, Ningbo, road, No. 888 Patentee after: Ningbo Heli pump Limited by Share Ltd Address before: 315105, integrity investment Road, Yinzhou District investment center, Ningbo, Zhejiang, Yinzhou 888 Patentee before: Ningbo Heli pump Limited by Share Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |