CN101994688B - Plunger reciprocating pump - Google Patents
Plunger reciprocating pump Download PDFInfo
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- CN101994688B CN101994688B CN2010105659407A CN201010565940A CN101994688B CN 101994688 B CN101994688 B CN 101994688B CN 2010105659407 A CN2010105659407 A CN 2010105659407A CN 201010565940 A CN201010565940 A CN 201010565940A CN 101994688 B CN101994688 B CN 101994688B
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Abstract
The invention relates to a plunger reciprocating pump which comprises a pump body, a plunger, an inhalation valve bank and an exhaust valve bank. The plunger is glidingly matched in a plunger hole of the pump body, the inhalation valve bank and the exhaust valve bank are arranged in the pump body, and a pump cavity is formed among the plunger, the inhalation valve bank and the exhaust valve bank in the pump body. The plunger reciprocating pump is characterized in that an adjusting plunger component kept on the same central line as the plunger is mounted on the pump body and comprises a sealing packing box, an adjusting plunger, a screw, a spring and an adjusting handle, wherein the sealing packing box is mounted on the pump body and is provided with a hole with a valve seat in the center, a sealing component and a guiding sealing sleeve are mounted in the hole, the outer circumferential wall of the adjusting plunger is mounted in the sealing component and the guiding sealing sleeve, the valve surface of the front end of the adjusting plunger is arranged in the pump cavity and matched with the valve seat in the center of the packing sealing box, and the screw is provided with a lug boss at the front end, a cylinder in the middle and external threads at the tail. The invention has the advantages of great adjusting range, high adjusting accuracy and convenient adjustment and is suitable for adjusting the flow rates of a plurality of drain openings of a multi-cylinder reciprocating pump.
Description
Technical field
A kind of plunger reciprocating pump of the present invention, especially a kind of plunger reciprocating pump that is applicable to the multioutlet adjustable flow of operating modes such as oil field injection.
Background technique
The plunger reciprocating pump is a kind of positive displacement pump, and the output flow of pump is relevant with plunger diameter, pump stroke and pump speed (per minute reciprocal time).The way of the output flow through changing different-diameter plunger adjustment pump since operation inconvenience almost do not use.Adjust the output flow of pump through the stroke that changes plunger, its degree of regulation is higher, but the power end complex structure only is used for metering pump usually.If the employing backflow is transferred flow then is wasted energy.At present, the most of employing of existing plunger reciprocating pump is to change pump speed to transfer flow.But this method is only applicable to the situation that a reciprocating pump has only an exhaust port.If the employing backflow is transferred flow then is wasted energy.For multi cylinderpump, if require the equal can regulate of the flow of each independent exhaust port, and regulation range is big, degree of regulation is high, easy to adjust, existing plunger reciprocating pump does not then reach above-mentioned requirements.
Summary of the invention
Technical problem to be solved by this invention be to above-mentioned existing technology provide a kind of regulation range of POF big, degree of regulation is high, easy to adjust and be applicable to all adjustable plunger reciprocating pump of flow of a plurality of exhaust ports of multi cylinderpump.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: this plunger reciprocating pump; It comprises the pump housing; The plunger of sliding fit in pump housing plunger hole is arranged on suction valve group and expulsion valve group in the pump housing, forms pump chamber in the middle of the inherent plunger of the said pump housing, suction valve group and the drain group; It is characterized in that: the adjustment plunger assembly that keeps same center line with said plunger is installed on the said pump housing, and this adjustment plunger assembly comprises:
Be installed in the sealed letter body on the said pump housing, the center of sealing letter body is the hole of a band valve seat; Black box and pilot seal cover are installed in the hole;
The adjustment plunger; This adjustment plunger is that a front end is stepped shape or taper valve face, the tapped hollow cylinder in rear end; Its outer circle wall is installed in said black box and the pilot seal cover; The valve face of this adjustment plunger front end place in the pump chamber and with said sealed letter body on the valve seat at center cooperates, thereby play the spacing and effect of closing the leakage of sealed letter body of adjustment plunger;
Screw rod, the front end of this screw rod have boss, the middle part is that cylindrical body, afterbody have outside thread, and the boss of this screw front end portion is installed in the hole of adjustment plunger back-end, and are encapsulated in the hole of adjustment plunger back-end with the clamping sleeve screw thread;
Spring, this spring one end is installed on the said clamping sleeve, and the spring the other end mounts elastically, and the afterbody of said screw rod passes said spring and said spring seat;
The adjustment handle, this adjustment handle is a tapped shell-like handle, its internal thread screws in the afterbody outside thread of screw rod.
When plunger was done to suck motion backward, the suction valve group was opened, and the expulsion valve group is closed.Liquid gets in the pump chamber from suction port, because mostly reciprocating pump is that its head pressure of high-pressure service pump is very high, and it is less to withstand the spring rate of adjusting the plunger return in the mechanism; When plunger when previous crops is discharged motion; The suction valve group is closed, and fluid pressure rises, and fluid pressure is before reaching specified head pressure; The expulsion valve group that is arranged on the exhaust port is failure to actuate, and exhaust port is closed; After fluid pressure surpasses the back pressure of spring; The adjustment plunger produces motion backward in the sealed letter body; Till the valve face and the valve seat on the sealed letter body that move to the adjustment plunger are closed; The adjustment plunger forward plunger motion of plunger reciprocating pump reduces in this process swept volume and the adjustment plunger swept volume that increases that moves backward that moves backward equates that pump chamber does not change, and liquid is not discharged; Plunger continues to move ahead, and remaining pump chamber reduces further raises fluid pressure, reached working pressure after, the expulsion valve group is opened, and remains this part flow and has been discharged to outside the pump housing.When plunger was made suction action once more, the adjustment plunger was got back to the position that the screw rod boss limits by the spring top, and the suction valve group is opened liquid is sucked.Get into next work cycle.The distance of rotation adjustment handle adjustment from sealed letter body valve seat to adjustment plunger front end valve face just changed the plunger effective stroke volume, thereby changed the discharge flow rate of plunger.
As improvement, said screw rod tail be equipped with one be carved with scale and numerical value scale.This scale can accurately indicate the stroke of valve face plunger, i.e. flow adjustment percentage.
Improve, between said spring housing and the said adjustment handle ball is installed, ball plays the role of positioning on the one hand, can reduce to adjust the rotational resistance of handle on the other hand, and can be easily with the position of its adjustment of screw lock.
Said black box is a U RunddichtringO or V-seal spare or stuffing box packing.
Compared with prior art, the invention has the advantages that:
1, flow adjustment precision is high, and the distance of the valve seat of the valve face of adjustment plunger to the sealed letter body is exactly the flow adjustment amount.
2, the flow adjustment range is big, and flow output can be 0, and output quantity is 0-100%.The traffic requirement of each point when fully adapting to pump multiple spot water supply; Wherein but working flow is not 0 o'clock other some proper functioning also;
3, in the whole stroke, only there is micro-leakage at valve face plunger seal place before the valve face closure of valve face plunger, does not just leak after the valve face closure.The leak amount is reduced, improved pump efficiency;
4, spring only provides the restoring force of adjustment plunger, and does not need the balance fluid pressure, and it is less that rigidity can be done; Can reduce the fatigue damage of spring, also when actual working pressure is not too high, still have adjustment capability;
5, flow is easy to adjust, directly perceived, can not shut down adjustment;
6, applicable to multi-cylinder plunger reciprocating pump, each cylinder all can be adjusted flow separately, separately output.A convenient pump supplies a plurality of points and flow adjustable.Be particularly suitable for operating modes such as oil field injection.
Description of drawings
Fig. 1 is the structural representation (plunger is in the dead center position, back) of plunger reciprocating pump in the embodiment of the invention;
Fig. 2 is the structural representation of plunger reciprocating pump in the embodiment of the invention (plunger move ahead, adjust plunger in the closed position).
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Plunger reciprocating pump as shown in Figure 1, it comprises the pump housing 2, is engaged in the plunger 1 in the pump housing plunger hole and is arranged on suction valve group 3 and the expulsion valve group 4 in the pump housing 2, the said suction valve group 3 of the specific embodiment of the invention is ball valve with expulsion valve group 4; The said pump housing 2 is provided with suction port 5 and exhaust port 6; Form pump chambers in the middle of the inherent plunger of the said pump housing 21, suction valve group 3 and the expulsion valve group 4.
On the said pump housing 2 the adjustment plunger assembly is installed, said adjustment plunger assembly and main plunger keep same center line; It comprises sealed letter body 8, adjustment plunger 7, black box 9, pilot seal cover 10, clamping sleeve 11, screw rod 12, spring 14, spring housing 13, stop screw 15, ball 16, adjustment handle 17, scale 18.
Wherein sealed letter body 8 usefulness bolts are installed on the pump housing, and its center is the hole of a band valve seat, and black box 9 and pilot seal cover 10 are installed in the hole.The said black box of the specific embodiment of the invention is the U-shaped seal ring.
Adjustment plunger 7 is that a front end has the taper valve face, and the tapped hollow garden of rearward end columniation structure body, its cylindrical are installed in black box 9 and overlap in 10 with pilot seal, and it is secondary to form plunger seal; The taper valve face of this adjustment plunger front end places in the pump chamber and cooperates with valve seat on the sealed letter body 8, plays dual parts spacing and closes leakage.
The front end of said screw rod 12 has boss, the middle part is that cylindrical body, afterbody have outside thread; And the tailing screw flight end has the groove that prevents its rotation; The boss of this screw front end portion is installed in the hole of adjustment plunger 7 rear ends, and seals with the screw thread of clamping sleeve 11, and the boss of screw rod 12 can only be slided in adjustment plunger 7 endoporus.
Said spring 14 1 ends are installed on the clamping sleeve 11, and the other end is installed in the spring housing 13.
Said screw rod 12 afterbodys pass from spring 14 and spring housing 13, and said stop screw 15 1 ends screw in the other end in spring housing 13 screws and snap in that restriction screw rod 12 rotates in the groove of screw rod 12.
Said adjustment handle 17 is a tapped shell-like handle, and its internal thread is screwed into the male end of screw rod.Rotation adjustment handle 17 can be adjusted the distance from sealed letter body valve seat to adjustment plunger valve face.Just adjust an effective travel volume in the stroke, thus the adjustment discharge flow rate.
When rotation adjustment handle 17 adjustment flows, screw rod 12 is not rotated by stop screw 15 restrictions and only does axial motion.
Said ball 16 is used on the one hand location adjustment handle 17 and only can rotates and do not do to move axially, and can reduce to adjust the rotational resistance of handle 17 on the other hand, and can be easily with its adjusted position of screw lock.
When reciprocating pump was worked, when plunger 1 was done to suck motion backward, pump chamber increased, and pressure reduces, and suction valve group 3 is opened, and expulsion valve group 4 is closed.Medium gets in the pump chamber from suction port 5, because mostly reciprocating pump is that its head pressure of high-pressure service pump is very high, and the spring rate of overhead-valve face plunger return is less; When plunger 1 when previous crops is discharged motion, pump chamber reduces, increased pressure; The suction valve group is closed; Fluid pressure is before reaching specified head pressure, and the expulsion valve 4 that is arranged on the exhaust port is failure to actuate, and exhaust port 6 no liquid are discharged; After fluid pressure surpassed the back pressure of spring, adjustment plunger 1 produced motion backward, till the valve face that moves to adjustment plunger 7 is closed with the valve seat on the sealed letter body 8, adjusted plunger 7 and moved backward that swept volume does not have discharge in this process.The adjustment plunger swept volume that reduces and adjustment plunger 7 swept volume that increases that move backward that travels forward of plunger 1 in this process that moves backward equates that pump chamber does not change, and liquid is discharge not.Plunger 1 moves forward, and adjustment plunger 7 can not be moved by the valve seat restriction on the sealed letter body 8 backward; Remaining volume continues compression, and fluid pressure is further raise, reached working pressure after, expulsion valve group 4 is opened, and remains this part flow and has been discharged to outside the liquid cylinder through exhaust port 6.This moment, the position of each part was seen shown in the accompanying drawing 2.When plunger 1 was made suction action once more, adjustment plunger 7 was got back to the position that screw rod 12 boss limit by spring 14 tops; Suction valve group 3 is opened and is made liquid suck pump chamber A.Get into next work cycle.
The valve face of adjustment plunger 7 front ends is not limited to taper among the present invention, also plane stepped shape, and suction valve group 3 is not limited to ball valve with expulsion valve group 4, and it is cone valve, flap type (plane valve), deadweight valve or spring valve etc. also.Black box also is not limited to the U-shaped seal ring among the present invention, also patterns such as v-seal, packing seal, clearance seal.
Turn adjustment handle 17 closes extremely the valve face of valve face plunger 7 and the valve seat of sealed letter body 8 all the time, and adjustment amount was 0 when scale was shown as 100 positions, this cylinder flowing full amount output, and leakage rate is zero.When distance was adjusted into pump stroke between the valve seat of the valve face of valve face plunger 7 and sealed letter body 8, when scale was shown as 0 position, adjustment amount was 100%, and this cylinder flow is output as 0.When being adjusted into scale and being shown as 50 positions, adjustment amount is 50%, and this cylinder flow is output as 50%.Be that the scale display digit is exactly a flow output percentage.
Claims (4)
1. plunger reciprocating pump; It comprises the pump housing; Be slidingly arranged in the plunger in the pump housing plunger hole, be arranged on suction valve group and expulsion valve group in the pump housing, form pump chamber in the middle of the inherent plunger of the said pump housing, suction valve group and the drain group; It is characterized in that: the adjustment plunger assembly that keeps same center line with said plunger is installed on the said pump housing, and this adjustment plunger assembly comprises:
Be installed in the sealed letter body on the said pump housing, the center of sealing letter body is the hole of a band valve seat; Black box and pilot seal cover are installed in the hole;
The adjustment plunger; This adjustment plunger is that a front end is taper or stepped shape valve face, the tapped hollow cylinder in rear end; Its outer circle wall is installed in said black box and the pilot seal cover; The valve face of this adjustment plunger front end place in the pump chamber and with said sealed letter body on the valve seat at center cooperates, thereby play the spacing and effect of closing the leakage of sealed letter body of adjustment plunger;
Screw rod, the front end of this screw rod have boss, the middle part is that cylindrical body, afterbody have outside thread, and the boss of this screw front end portion is installed in the hole of adjustment plunger back-end, and are encapsulated in the hole of adjustment plunger back-end with the clamping sleeve screw thread;
Spring, this spring one end is installed on the said clamping sleeve, and the spring the other end mounts elastically, and the afterbody of said screw rod passes said spring and said spring seat;
The adjustment handle, this adjustment handle is a tapped shell-like handle, its internal thread screws in the afterbody outside thread of screw rod.
2. plunger reciprocating pump according to claim 1 is characterized in that: said screw rod tail be equipped with one be carved with scale and numerical value scale.
3. plunger reciprocating pump according to claim 1 is characterized in that: between said spring seat and the said adjustment handle ball is installed.
4. plunger reciprocating pump according to claim 1 is characterized in that: said black box is a U RunddichtringO or V-seal spare or stuffing box packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105659407A CN101994688B (en) | 2010-11-19 | 2010-11-19 | Plunger reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105659407A CN101994688B (en) | 2010-11-19 | 2010-11-19 | Plunger reciprocating pump |
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| Publication Number | Publication Date |
|---|---|
| CN101994688A CN101994688A (en) | 2011-03-30 |
| CN101994688B true CN101994688B (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105659407A Active CN101994688B (en) | 2010-11-19 | 2010-11-19 | Plunger reciprocating pump |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155373B (en) * | 2011-05-19 | 2013-04-10 | 宁波合力机泵有限公司 | Pneumatically-controlled variable reciprocating pump |
| CN102220971B (en) * | 2011-06-14 | 2013-01-23 | 上海大隆机器厂有限公司 | Integral type sealing box for reciprocating type plunger pump |
| CN102852755A (en) * | 2011-07-28 | 2013-01-02 | 南通天华和睿科技创业有限公司 | Plunger type chemical feeding pump |
| CN103267012B (en) * | 2013-05-29 | 2015-10-07 | 宁波合力机泵有限公司 | A kind of flow regulator changing plunger volume |
| CN108518328B (en) * | 2018-06-15 | 2024-07-05 | 焦作市恒利水文地质工程有限责任公司 | High-pressure pump head of slurry pump |
| CN111589595B (en) * | 2020-05-18 | 2022-03-22 | 天地（唐山）矿业科技有限公司 | Swirler backpressure online adjusting device |
| CN112924147B (en) * | 2021-01-13 | 2023-03-24 | 合肥通用机械研究院有限公司 | Reciprocating sealing test device for symmetrically-arranged plungers |
Citations (5)
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| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN201277156Y (en) * | 2008-10-24 | 2009-07-22 | 汉胜工业设备(上海)有限公司 | Flux-adjustable multi-cylinder reciprocating pump |
| CN201407154Y (en) * | 2009-05-18 | 2010-02-17 | 西安热工研究院有限公司 | Flow regulating mechanism for hydraulic metering pump |
| CN201461301U (en) * | 2009-09-05 | 2010-05-12 | 大庆惠博普石油机械设备制造有限公司 | Multi-cylinder and separate-cylinder flow-regulating reciprocating pump |
| CN201865903U (en) * | 2010-11-19 | 2011-06-15 | 宁波合力机泵有限公司 | Plunger reciprocating pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005025515A (en) * | 2003-07-02 | 2005-01-27 | Ricoh Co Ltd | Image forming apparatus, image forming method, program and recording medium |
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2010
- 2010-11-19 CN CN2010105659407A patent/CN101994688B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN201277156Y (en) * | 2008-10-24 | 2009-07-22 | 汉胜工业设备(上海)有限公司 | Flux-adjustable multi-cylinder reciprocating pump |
| CN201407154Y (en) * | 2009-05-18 | 2010-02-17 | 西安热工研究院有限公司 | Flow regulating mechanism for hydraulic metering pump |
| CN201461301U (en) * | 2009-09-05 | 2010-05-12 | 大庆惠博普石油机械设备制造有限公司 | Multi-cylinder and separate-cylinder flow-regulating reciprocating pump |
| CN201865903U (en) * | 2010-11-19 | 2011-06-15 | 宁波合力机泵有限公司 | Plunger reciprocating pump |
Non-Patent Citations (1)
| Title |
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| JP特开2005-25515A 2008.02.07 |
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| CN101994688A (en) | 2011-03-30 |
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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 |
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| 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 |