CN105673378A - Two-way metering pump system - Google Patents

Two-way metering pump system Download PDF

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Publication number
CN105673378A
CN105673378A CN201610019545.6A CN201610019545A CN105673378A CN 105673378 A CN105673378 A CN 105673378A CN 201610019545 A CN201610019545 A CN 201610019545A CN 105673378 A CN105673378 A CN 105673378A
Authority
CN
China
Prior art keywords
pump
plunger
clutch
gear
transmission case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610019545.6A
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Chinese (zh)
Inventor
毛恒松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Original Assignee
JIANGSU HANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU HANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd filed Critical JIANGSU HANLONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
Priority to CN201610019545.6A priority Critical patent/CN105673378A/en
Publication of CN105673378A publication Critical patent/CN105673378A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00Pumping installations or systems
    • F04B23/04Combinations of two or more pumps
    • F04B23/06Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type

Abstract

The invention discloses a two-way metering pump system. The two-way metering pump system comprises a motor, an upper transmission box, a lower transmission box, an upper clutch, a lower clutch, two plunger pumps and an auxiliary pump; an output end of the motor is connected with the auxiliary pump through the upper transmission box and the upper clutch in sequence, and is connected with the lower transmission box through the upper transmission box and the lower clutch; the two plunger pumps are respectively fixed outside two sides of the lower transmission box, input ends at the bottoms of the pumps are respectively connected with a container through sucking stop valves, and high-voltage output ends thereof are respectively gathered through discharge stop valves to leadto an output pipeline; and an input end of the auxiliary pump is directly connected with the container, and an output end of the auxiliary pump is ledto the output pipeline. The power of the motor is divided into upper and lower ways; one way of the power directly drives the auxiliary pump to improve the sucking quantity of the plunger pumps; and the other way of the power respectively drives the plunger pumps outside the two sides through the lower transmission box. The two plunger pumps have the same plunger outer diameter and working travel, so that the working efficiency of the two-way metering pump can be improved by more than one time; and the two plunger pumps can synchronously transmit two different working mediums.

Description

Bidirectional measuring pumping system
Technical field
The present invention relates to a kind of dosing pump, especially one can realize the output of constant current constant voltage pulse free, and can the metering pump system of accurate measurement, belong to displacement pump technical field.
Background technology
Dosing pump is a kind of can to meet various strict technological process needs, and can step-less adjustment flow and pressure, it is used for carrying a kind of special reciprocating displacement pump of liquid particularly corrosive liquids, for applications such as experimental facilities, pressure elements pressure testing, superpressure food processing and pumping supercritical carbon dioxides. The unidirectional dosing pump of existing single plunger has the disadvantage in that one is that single plunger can only adopt the one-way only operation pattern exported during input pressure journey when inhaling journey, inefficiency; Two is after single plunger pump fixes supporting pipeline, can only transfer out a kind of working media; Three is owing at more than 60MPa High Voltage operation, its piston diameter is all smaller, so causes that the working media amount of conveying is little within the unit interval, and carrier cavity volume topping up (gas) is slow.
Summary of the invention
It is an object of the invention to provide a kind of work efficiency to be enhanced about more than once, it is possible to simultaneously two kinds of working medias of conveying and output medium can constant current, constant voltage and constant temperature bidirectional measuring pumping system.
The present invention is achieved by following technical scheme:
A kind of bidirectional measuring pumping system, including motor, upper gear box, lower transmission case, upper clutch, lower clutch, two plunger displacement pumps and donkey pump, described motor output end passes sequentially through upper gear box, upper clutch is connected with donkey pump, and motor output end is connected with lower transmission case also by upper gear box, lower clutch; Two plunger displacement pumps are separately fixed at outside lower transmission case both sides; Input at the bottom of two plunger pumps is connected with container respectively through suction stop valve, and the high-voltage output end at the bottom of two plunger pumps leads to output pipe after converging respectively through delivery stop valve; The input flow through container of donkey pump, auxiliary delivery side of pump leads to output pipe by check valve.
The present invention can also be realized further by techniques below measure.
Further, the input at the bottom of two plunger pumps is connected with corresponding container respectively through suction stop valve.
Further, described upper gear box includes upper gear box body, actively conical gear, upper driven bevel gear and lower driven bevel gear, actively conical gear is connected with motor output shaft by driving shaft, upper driven bevel gear is fixed on driven shaft, and lower driven bevel gear is fixed on lower driven shaft; Actively conical gear engages with the upper driven bevel gear of its both sides and lower driven bevel gear respectively. Described upper driven shaft is connected with donkey pump power shaft by upper clutch.
Further, described lower transmission case is worm reduction box, screw nut driving pair it is provided with in worm reduction box, worm gear and worm engaging, worm gear center is provided with screwed hole, the screwed hole at silk worm and wheel center screws, and screw mandrel two ends each extend over out the plunger rod that external diameter is identical with screw mandrel external diameter, and described plunger rod mates with corresponding plunges pump body endoporus respectively; Lower driven shaft is connected with the worm screw upper end of lower transmission case by lower clutch. The plunger rod of screw mandrel one end moves to direction at the bottom of pump when pumping superhigh pressure liquid medium in corresponding plunges pump body, and the plunger rod of the screw mandrel other end moves suction liquid medium to pump head direction in corresponding plunges pump body. Described plunger rod external diameter is less than screw mandrel external diameter, and spacer is fixed between plunges pump body and lower transmission case, and the plunger rod at screw mandrel two ends is each passed through in the plunges pump body that spacer puts in correspondence.
Further, described output pipe is provided with pressure switch.
Further, it is cased with electric jacket outside described plunges pump body.
Motor power is divided into upper and lower two-way by upper gear box by the present invention, above a road directly drive donkey pump to improve the suction efficiency of plunger displacement pump; Lower transmission case of leading up to below drives the plunger displacement pump outside its both sides respectively. Two plunger displacement pumps of the present invention have identical plunger outer diameter and impulse stroke, and its work efficiency is enhanced about more than once; Under the premise not changing system link circuit, two plunger displacement pumps can carry two kinds of different operating media simultaneously, and plunger displacement pump output medium can reach constant current, constant voltage and constant temperature. By reducing plunger rod external diameter so that it is less than screw mandrel external diameter, and spacer is fixed between plunges pump body and lower transmission case, the pressure of plunger displacement pump can be made to adjust expanded range to 0-500MPa.
Advantages of the present invention and feature, by for illustration and explanation by the non-limitative illustration of preferred embodiment below, these embodiments, it is only used as example with reference to accompanying drawing and provides.
Accompanying drawing explanation
Fig. 1 is the system schematic of the embodiment of the present invention one;
Fig. 2 is the bidirectional measuring pump configuration schematic diagram of the present invention;
Fig. 3 is the system schematic of the embodiment of the present invention two;
Fig. 4 is the bidirectional measuring pump configuration schematic diagram of the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with drawings and Examples being described in further detail the present invention.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment includes motor 1, upper gear box 2, lower transmission case 3, upper clutch 4,5, two plunger displacement pumps 6 of lower clutch and donkey pump 7, motor 1 outfan passes sequentially through upper gear box 2, upper clutch 4 is connected with donkey pump 7, and motor output end is connected with lower transmission case 3 also by upper gear box 2, lower clutch 5. Two plunger displacement pumps 6 are separately fixed at outside lower transmission case 3 left and right sides. Input 61 at the bottom of two plunger pumps is connected with container 9 respectively through suction stop valve 8, and the high-voltage output end 62 at the bottom of two plunger pumps leads to output pipe 100 after converging respectively through delivery stop valve 10.Input 71 flow through container 9 of donkey pump 7, the outfan 72 of donkey pump 7 leads to output pipe 100 by check valve 101. Upper clutch 4 and lower clutch 5 are electromagnetic clutch, are respectively used to control the connection of upper gear box 2 and donkey pump 7 and lower transmission case 3.
Upper gear box 2 includes upper gear box body 21, actively conical gear 22, upper driven bevel gear 23 and lower driven bevel gear 24, actively conical gear 22 is connected with motor output shaft by driving shaft 25, upper driven bevel gear 23 is fixed on driven shaft 26, and lower driven bevel gear 24 is fixed on lower driven shaft 27; Actively conical gear 22 engages with the upper driven bevel gear 23 of its both sides and lower driven bevel gear 24 respectively.
Lower transmission case 3 is worm reduction box, screw nut driving pair it is provided with in it, worm gear 31 engages with worm screw 32, worm gear 31 center is provided with screwed hole 311, the screwed hole 311 at screw mandrel 33 and worm gear 31 center screws, screw mandrel 33 two ends each extend over out the plunger rod that external diameter is identical with screw mandrel 33 external diameter, and described plunger rod mates with corresponding plunges pump body 61 endoporus respectively. As in figure 2 it is shown, the left end plunger rod 331 of screw mandrel 33 moves to direction at the bottom of pump when pumping superhigh pressure liquid medium in corresponding plunges pump body 61, the right-hand member plunger rod 332 of screw mandrel 33 moves suction liquid medium to pump head direction in corresponding plunges pump body 61.
Upper driven shaft 26 is connected with donkey pump 7 power shaft by upper clutch 4, and lower driven shaft 27 is connected with worm screw 32 upper end of lower transmission case 3 by lower clutch 5. Upper clutch 4 and lower clutch 5 are electromagnetic clutch, for controlling the connection of upper gear box 2 and donkey pump 7 and lower transmission case 3 respectively.
Being cased with electric jacket 30 outside plunges pump body, the liquid medium in plunges pump body is heated by electric jacket 30 so that room temperature or under low temperature thickness liquid medium heating after be easy to flowing.
Output pipe 100 is provided with pressure switch 20, pressure switch 20 is for detecting the pressure of the superhigh pressure liquid medium of two plunger displacement pump 6 outputs of the present invention, as shown in Figure 2, when screw mandrel 33 left end plunger rod 331 is in compression travel, when its left end plunger rod 331 is moved to the left to extreme position in left end plunges pump body 61, the medium pressure liquid of the output of the plunger displacement pump 6 of lower transmission case 3 left end reaches the highest, pressure switch 20 on output pipe 100 also reaches setting value and sender, rotated by electric control gear command motor 1 commutation, worm screw 32 and the worm gear 31 of engagement also commutate rotation, so that screw mandrel 33 moves right, the right-hand member plunger rod 332 of screw mandrel 33 is in compression travel, the left end plunger rod 331 of screw mandrel 33 is in suction stroke, in plunges pump body 61 on the left of lower transmission case 3, medium pressure liquid rapid drawdown is to negative pressure, it is drawn into liquid medium from container 9. now, screw mandrel 33 right-hand member plunger rod 332 moves right, this smaller volume at the bottom of plunges pump body 61 pump, and the liquid medium that pressure rises sharply is input into output pipe 100, goes round and begins again, constantly output superhigh pressure liquid medium.
Embodiment two
As it is shown on figure 3, the two of the present embodiment inputs at the bottom of plunger pump are connected with corresponding container 9 respectively through sucking respective stop valve, it is possible to two kinds of liquid mediums do not filled out of conveying simultaneously. All the other structures of the present embodiment are identical with embodiment one.
Embodiment three
As shown in Figure 4, the plunger rod external diameter of the present embodiment is less than screw mandrel 33 external diameter, spacer 40 it is respectively provided with between lower transmission case 3 left and right sides and the plunges pump body of correspondence, the plunger rod at screw mandrel 33 two ends is each passed through in the plunges pump body that spacer 40 puts in correspondence, after the cross-sectional area of plunger rod reduces, it is possible to the pressure regulation spectrum of liquid medium is brought up to 0-500MPa.All the other structures of the present embodiment are identical with embodiment one.
In addition to the implementation, the present invention can also have other embodiments, all employings to be equal to replacement or the technical scheme of equivalent transformation formation, all falls within the protection domain of application claims.

Claims (8)

1. a bidirectional measuring pumping system, it is characterized in that: include motor, upper gear box, lower transmission case, upper clutch, lower clutch, two plunger displacement pumps and donkey pump, described motor output end passes sequentially through upper gear box, upper clutch is connected with donkey pump, and motor output end is connected with lower transmission case also by upper gear box, lower clutch; Two plunger displacement pumps are separately fixed at outside lower transmission case both sides; Input at the bottom of two plunger pumps is connected with container respectively through suction stop valve, and the high-voltage output end at the bottom of two plunger pumps leads to output pipe after converging respectively through delivery stop valve; The input flow through container of donkey pump, auxiliary delivery side of pump leads to output pipe by check valve.
2. bidirectional measuring pumping system as claimed in claim 1, it is characterised in that: the input at the bottom of two plunger pumps is connected with corresponding container respectively through suction stop valve.
3. bidirectional measuring pumping system as claimed in claim 1, it is characterized in that: described upper gear box includes upper gear box body, actively conical gear, upper driven bevel gear and lower driven bevel gear, actively conical gear is connected with motor output shaft by driving shaft, upper driven bevel gear is fixed on driven shaft, and lower driven bevel gear is fixed on lower driven shaft; Actively conical gear engages with the upper driven bevel gear of its both sides and lower driven bevel gear respectively.
4. bidirectional measuring pumping system as claimed in claim 1, it is characterized in that: described lower transmission case is worm reduction box, screw nut driving pair it is provided with in worm reduction box, worm gear and worm engaging, worm gear center is provided with screwed hole, the screwed hole at silk worm and wheel center screws, and screw mandrel two ends each extend over out the plunger rod that external diameter is identical with screw mandrel external diameter, and described plunger rod mates with corresponding plunges pump body endoporus respectively; The plunger rod of screw mandrel one end moves to direction at the bottom of pump when pumping superhigh pressure liquid medium in corresponding plunges pump body, and the plunger rod of the screw mandrel other end moves suction liquid medium to pump head direction in corresponding plunges pump body.
5. bidirectional measuring pumping system as claimed in claim 4, it is characterised in that: described plunger rod external diameter is less than screw mandrel external diameter, and spacer is fixed between plunges pump body and lower transmission case, and the plunger rod at screw mandrel two ends is each passed through in the plunges pump body that spacer puts in correspondence.
6. bidirectional measuring pumping system according to claim 3, it is characterised in that: described upper driven shaft is connected with donkey pump power shaft by upper clutch, and lower driven shaft is connected with the worm screw upper end of lower transmission case by lower clutch.
7. bidirectional measuring pumping system according to claim 1, it is characterised in that: described output pipe is provided with pressure switch.
8. bidirectional measuring pumping system according to claim 1, it is characterised in that: it is cased with electric jacket outside described plunges pump body.
CN201610019545.6A 2016-01-13 2016-01-13 Two-way metering pump system Pending CN105673378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610019545.6A CN105673378A (en) 2016-01-13 2016-01-13 Two-way metering pump system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610019545.6A CN105673378A (en) 2016-01-13 2016-01-13 Two-way metering pump system

Publications (1)

Publication Number Publication Date
CN105673378A true CN105673378A (en) 2016-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610019545.6A Pending CN105673378A (en) 2016-01-13 2016-01-13 Two-way metering pump system

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Country Link
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369126A (en) * 2016-10-21 2017-02-01 常州市迈坤科技有限公司 Bidirectional transmission device and hybrid movement power system with same
WO2021202698A1 (en) * 2020-03-31 2021-10-07 Graco Minnesota Inc. Electrically operated pump for a plural component spray system
US11174854B2 (en) 2020-03-31 2021-11-16 Graco Minnesota Inc. Electrically operated displacement pump control system and method
US11300112B2 (en) 2020-03-31 2022-04-12 Graco Minnesota Inc. Pump drive system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079025A (en) * 1992-05-21 1993-12-01 北京市西城区新开通用试验厂 Is furnished with the power-actuated high-pressure plunger pump of numerical control
CN2761864Y (en) * 2004-12-10 2006-03-01 韩兴华 Reversible electric machine driven fluid pressure reciprocating transmission pump
CN201461300U (en) * 2009-09-02 2010-05-12 何冬 Wind power water pump
EP2378119A1 (en) * 2010-04-15 2011-10-19 Mmi Ag Plunger pump with manual insertion possibility for volumes under a microlitre
CN102822422A (en) * 2010-03-26 2012-12-12 萱场工业株式会社 Hybrid construction equipment control system
CN203297907U (en) * 2013-06-20 2013-11-20 辽宁惠通润滑设备制造有限公司 Bi-directional lubricating oil booster pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079025A (en) * 1992-05-21 1993-12-01 北京市西城区新开通用试验厂 Is furnished with the power-actuated high-pressure plunger pump of numerical control
CN2761864Y (en) * 2004-12-10 2006-03-01 韩兴华 Reversible electric machine driven fluid pressure reciprocating transmission pump
CN201461300U (en) * 2009-09-02 2010-05-12 何冬 Wind power water pump
CN102822422A (en) * 2010-03-26 2012-12-12 萱场工业株式会社 Hybrid construction equipment control system
EP2378119A1 (en) * 2010-04-15 2011-10-19 Mmi Ag Plunger pump with manual insertion possibility for volumes under a microlitre
CN203297907U (en) * 2013-06-20 2013-11-20 辽宁惠通润滑设备制造有限公司 Bi-directional lubricating oil booster pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369126A (en) * 2016-10-21 2017-02-01 常州市迈坤科技有限公司 Bidirectional transmission device and hybrid movement power system with same
WO2021202698A1 (en) * 2020-03-31 2021-10-07 Graco Minnesota Inc. Electrically operated pump for a plural component spray system
US11174854B2 (en) 2020-03-31 2021-11-16 Graco Minnesota Inc. Electrically operated displacement pump control system and method
US11300112B2 (en) 2020-03-31 2022-04-12 Graco Minnesota Inc. Pump drive system
US11434892B2 (en) 2020-03-31 2022-09-06 Graco Minnesota Inc. Electrically operated displacement pump assembly

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Application publication date: 20160615