CN105221400B - Backflow-free variable device for reciprocating pump - Google Patents
Backflow-free variable device for reciprocating pump Download PDFInfo
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- CN105221400B CN105221400B CN201510690166.5A CN201510690166A CN105221400B CN 105221400 B CN105221400 B CN 105221400B CN 201510690166 A CN201510690166 A CN 201510690166A CN 105221400 B CN105221400 B CN 105221400B
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Abstract
The invention relates to a backflow-free variable device for a reciprocating pump. The backflow-free variable device is installed on a pump body of a fluid end of the plunger reciprocating pump and located on the opposite side of a plunger (A) of the plunger reciprocating pump. The plunger (A) is arranged in a plunger channel. The backflow-free variable device for the reciprocating pump is characterized by including an adjusting box (1), a cylinder sleeve (2), a flow regulating piston (3), a piston cover (4), a valve rod (5), a regulating rod (12) and a regulating rod spring (11), wherein the regulating rod is sleeved with the regulating rod spring, the rear end of the regulating rod spring (11) abuts against the front end of the flow regulating piston (3), and the front end of the regulating rod spring (11) abuts against a step in a coaxial hole; and the rear end of the regulating rod (12) is fixed to the adjusting box (1) through a regulating nut (13) and a pressing nut (14). Compared with the prior art, the backflow-free variable device has the beneficial effects that the structure is novel, when the plunger moves, the flow regulating piston moves synchronously to achieve stepless flow regulation ranging from 0 to 100%, and therefore the backflow-free regulation of the flow is achieved.
Description
Technical field
The present invention relates to a kind of reciprocating pump is without backflow variable device.
Background technology
Reciprocating plunger pump (piston pump) belongs in displacement pump scope, is determined with pump speed, stroke, plunger (piston) diameter
Flow value.Generally individually rush number to be adjusted flow with change diameter of plunger, plunger in each conveying high-pressure fluid applications.It is domestic
There is realization to change stroke to adjust flow in external small-power pump.Big flow (single valve flow ＞ 20M3/h) plunger displacement pump changes stroke
Realize that the current country of variable there is no precedent.The plunger displacement pump of each industrial circle with using converter carrying out frequency modulation variable per family, due to
Both there is a problem of that frequency-converter device investment was larger using frequency converter timing method, such as purchased the valency of a 800KW converter
Lattice needs are up to a million, and because converter frequently using in electrical network, electrical network can be made to produce harmonic wave, cause electric network pollution, shadow
Power grid quality is rung, and unsafe factor is produced to overall grid.
For above-mentioned situation, the applicant has opened a kind of flow regulator of reciprocating pump, (living using idle running plunger is walked
Plug) volume change reach change flow purpose, such as notification number be CN101994688B《A kind of plunger reciprocating pump》；Bulletin
Number for CN203272099U《A kind of flow regulator for changing plunger volume》With notification number for CN102410194B's《One
Plant the flow regulator of plunger reciprocating pump》.Above-mentioned several regulating flow quantity devices, limitation is applied lubricating condition medium
In, pressure just cannot normally be run, it is impossible to meet user big in 20MPa, flow Dan Fa≤8M3/h more than conditions above
Apply under flow, the operating mode of high pressure oil field extracted water.
The content of the invention
The technical problem to be solved for above-mentioned prior art provide a kind of another structure it is novel,
Walk idle running change volume to reach the reciprocating pump for adjusting quantitative change amount purpose without backflow variable device by plunger, the big stream of user can be met
Apply under amount, the operating mode of high pressure oil field extracted water.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：A kind of reciprocating pump is without backflow variable device, peace
Be mounted on the pump housing of piston reciprocation pump hydraulic end, positioned at the plunger opposite side of plunger reciprocating pump, plunger is arranged on plunger channel
It is interior, it is characterised in that：The reciprocating pump includes without backflow variable device：
Adjust on letter, with the pump housing of the same axis non-movable piston reciprocating pump hydraulic-end of plunger, adjust and be provided with and plunger in letter
The coaxial aperture of same axis, coaxial aperture front interior is provided with step；
Cylinder sleeve, is arranged on the coaxial aperture rear interior for adjusting letter；
Tune amount piston, is movably arranged in cylinder sleeve；
Piston cap, is movably arranged in cylinder sleeve, and is connected with tune amount piston rear end；
Valve rod, the front end of valve rod is connected with piston cap and tune amount piston, and the rear end of valve rod is located in plunger channel, and valve
The rear end of bar is provided with valve plate；
Adjusting rod, is arranged on the coaxial aperture front interior for adjusting letter, and the rear end of adjusting rod is connected with tune amount piston nose；
Adjusting rod spring, is set in outside adjusting rod, and rear end and the front end of tune amount piston of adjusting rod spring offset, adjusting rod
The front end of spring offsets with coaxial aperture interior step；
The rear end of adjusting rod is fixed on regulation letter by adjusting nut and clamp nut.
As improvement, the amplitude transformer connected with internal coaxial aperture is installed outside the regulation letter, inflation is provided with amplitude transformer
Accumulation of energy leather bag, and the pressure gauge for showing inflation accumulation of energy leather bag intrinsic pressure and energy situation is installed on amplitude transformer.
Improve again, it is described adjust letter on be provided with internal coaxial aperture together with complementary energy hole, in addition, adjust letter outside lower section
Overflow valve is installed, the operating pressure of overflow valve is 1.03 times of the intrinsic pressure that amplitude transformer inflates accumulation of energy leather bag.
Improve again, mechanical-hydraulic oil is covered with the coaxial aperture for adjusting letter.
Improve again, the external diameter of the tune amount piston is more than the external diameter of plunger.
Improve again, the outer wall of cylinder jachet end face is fitted with sealing ring, and the rear end end face of cylinder sleeve is valve seat, and is provided with
Some liquid-through holes.
Improve again, the valve plate coordinates with the valve seat of the rear end end face of cylinder sleeve, forms flat valve structure or cone valve structure
Or cylinder sealing structure.
Improve again, the outer wall of the tune amount piston installs piston seal and guidance tape, the anterior end surface of the tune amount piston
It is provided with the fixed step for installing adjusting rod spring.
Improve again, the rear end of the adjusting rod is additionally provided with the locking nut for preventing adjusting rod from pine.
Improve again, the rear end of the valve rod is additionally provided with dump valve and discharges valve spring.
Compared with prior art, it is an advantage of the current invention that：Present configuration is novel, plunger in motion, tune amount piston
It is synchronized with the movement, so as to realize the stepless quantity-regulating of flow 0～100%, so as to realize that flow is adjusted without backflow.
Description of the drawings
Fig. 1 is structural representation of the reciprocating pump without backflow variable device in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figure 1 a kind of reciprocating pump on the pump housing of piston reciprocation pump hydraulic end, is located at without backflow variable device
The plunger A opposite sides of plunger reciprocating pump, plunger A is arranged in plunger channel, and the reciprocating pump includes without backflow variable device：
Adjust on letter 1, with the pump housing of the same axis non-movable piston reciprocating pump hydraulic-ends of plunger A, adjust and be provided with and post in letter 1
The coaxial aperture of the same axis of plug A, coaxial aperture front interior is provided with step；
Cylinder sleeve 2, is arranged on the coaxial aperture rear interior for adjusting letter 1；
Tune amount piston 3, is movably arranged in cylinder sleeve 2；
Piston cap 4, is movably arranged in cylinder sleeve 2, and is connected with the rear end of tune amount piston 3；
Valve rod 5, the front end of valve rod 5 is connected with piston cap 4 and tune amount piston 3, and the rear end of valve rod 5 is located in plunger channel,
And the rear end of valve rod 5 is provided with valve plate 6；
Adjusting rod 12, is arranged on the coaxial aperture front interior for adjusting letter 1, rear end and the front end of tune amount piston 3 of adjusting rod 12
Connection；
Adjusting rod spring 11, is set in outside adjusting rod, and rear end and the front end of tune amount piston 3 of adjusting rod spring 11 offset,
The front end of adjusting rod spring 11 offsets with coaxial aperture interior step；
The rear end of adjusting rod 12 is fixed on regulation letter 1 by adjusting nut 13 and clamp nut 14.
It is provided with the amplitude transformer 10 connected with internal coaxial aperture, amplitude transformer 10 outside the regulation letter 1 and is provided with inflation accumulation of energy
Pressure gauge 15 for showing inflation accumulation of energy leather bag intrinsic pressure and energy situation is installed on leather bag, and amplitude transformer 10；It is described
Adjust letter 1 on be provided with internal coaxial aperture together with complementary energy hole, in addition, adjust letter 1 outside lower section overflow valve 17 is installed, overflow
The operating pressure of stream valve 17 is 1.03 times of intrinsic pressure that amplitude transformer 10 inflates accumulation of energy leather bag, when in amplitude transformer pressure be more than into
During 1.03 times of mouthful pressure, overflowed automatically by overflow valve, it is ensured that liquid energy is balanced.
It is covered with mechanical-hydraulic oil in the coaxial aperture for adjusting letter 1, mechanical-hydraulic oil is both hydraulic energy, but also as motion
The lubricant of part.
External diameter of the external diameter of the tune amount piston 3 more than plunger A, it is ensured that the movement travel of tune amount piston is less than plunger A.
The outer wall end face of the cylinder sleeve 2 is fitted with sealing ring, and the rear end end face of cylinder sleeve 2 is valve seat, and is provided with some
Liquid-through hole.
The valve plate 6 coordinates with the valve seat of the rear end end face of cylinder sleeve 2, forms flat valve structure or cone valve structure or cylinder
Body sealing structure.
The outer wall of the tune amount piston 3 installs piston seal and guidance tape, and the anterior end surface of the tune amount piston 3 is provided with
For installing the fixed step of adjusting rod spring 11.
The rear end of the adjusting rod 12 is additionally provided with the locking nut 16 for preventing adjusting rod 12 from pine.
The rear end of the valve rod 5 is additionally provided with dump valve 7 and discharges valve spring 8.
Operation principle is：When plunger A gos ahead, tune amount piston 3 is goed ahead simultaneously, is formed plunger A and is walked idle running.Now arrange
Liquid valve is not switched on, and liquid is not discharged, and the valve seat of the rear end end face of cylinder sleeve 2 is entered into valve plate 6, and valve face is closed, in plunger channel
Pressure is produced, tapping valve is opened, and liquid is discharged.Adjusting rod spring 11 is compressed, liquid compression in amplitude transformer 10, forms energy.
To plunger A backward rollback when, liquid energy and adjusting rod spring 11 promote tune amount piston 3 to go ahead on position in amplitude transformer, work as tune
Amount piston in O flow positions, walk at the valve seat less than the rear end end face of cylinder sleeve 2, and valve face is not shut, now tune amount by valve plate 6
Not on position, plunger A's piston 3 gos ahead, and intracavity does not produce pressure, and tapping valve is not opened.When tune amount piston 3 is in 100% stream
During amount position, valve plate 6 is entered at the valve seat of rear end end face of cylinder sleeve 2, and on valve face is fully closed, plunger A continues to go ahead, and plunger leads to
Pressure is produced in road, tapping valve is opened, and liquid is discharged.When adjusting rod 12 is adjusted to forward or backward tune amount piston 3 50%, pump
Delivery flow be 50%.So reach the stepless quantity-regulating of tune amount (variable) 0～100%.Because plunger A is in motion, adjust
Amount piston synchronous motion, so can reach being adjusted without backflow.
Claims (10)
1. a kind of reciprocating pump without backflow variable device, on the pump housing of piston reciprocation pump hydraulic end, positioned at plunger reciprocating pump
Plunger (A) opposite side, plunger (A) is arranged in plunger channel, it is characterised in that：The reciprocating pump is without backflow variable device bag
Include：
Adjust letter (1), on the pump housing of the same axis non-movable piston reciprocating pump hydraulic-end of plunger (A), adjust be provided with letter (1) with
The coaxial aperture of the same axis of plunger (A), coaxial aperture front interior is provided with step；
Cylinder sleeve (2), is arranged on the coaxial aperture rear interior for adjusting letter (1)；
Tune amount piston (3), is movably arranged in cylinder sleeve (2)；
Piston cap (4), is movably arranged in cylinder sleeve (2), and is connected with tune amount piston (3) rear end；
Valve rod (5), the front end of valve rod (5) is connected with piston cap (4) and tune amount piston (3), and the rear end of valve rod (5) is logical positioned at plunger
In road, and the rear end of valve rod (5) is provided with valve plate (6)；
Adjusting rod (12), is arranged on the coaxial aperture front interior for adjusting letter (1), rear end and tune amount piston (3) of adjusting rod (12)
Front end connects；
Adjusting rod spring (11), is set in outside adjusting rod, the rear end of adjusting rod spring (11) and the front end phase of tune amount piston (3)
Support, front end and the coaxial aperture interior step of adjusting rod spring (11) offset；
The rear end of adjusting rod (12) is fixed in regulation letter (1) by adjusting nut (13) and clamp nut (14).
2. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：Regulation letter (1) is installed outward
Have in the amplitude transformer (10) connected with internal coaxial aperture, amplitude transformer (10) to be provided with inflation accumulation of energy leather bag, and amplitude transformer (10) and pacify
Equipped with for show inflation accumulation of energy leather bag intrinsic pressure and energy situation pressure gauge (15).
3. reciprocating pump according to claim 2 is without backflow variable device, it is characterised in that：Arrange on regulation letter (1)
Have with internal coaxial aperture together with complementary energy hole, in addition, adjusting letter (1) outer lower section is provided with overflow valve (17), overflow valve (16)
Operating pressure be that amplitude transformer (10) inflates accumulation of energy leather bag 1.03 times of intrinsic pressure.
4. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：It is described to adjust the coaxial of letter (1)
It is covered with mechanical-hydraulic oil in hole.
5. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：Outside the tune amount piston (3)
External diameter of the footpath more than plunger (A).
6. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：Cylinder sleeve (2) the outer wall end face
Sealing ring is fitted with, and the rear end end face of cylinder sleeve (2) is valve seat, and it is provided with some liquid-through holes.
7. reciprocating pump according to claim 6 is without backflow variable device, it is characterised in that：The valve plate (6) and cylinder sleeve (2)
The valve seat of rear end end face coordinate, form flat valve structure or cone valve structure or cylinder sealing structure.
8. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：Outside the tune amount piston (3)
Wall installs piston seal and guidance tape, and the anterior end surface of the tune amount piston (3) is provided with for installing adjusting rod spring (11)
Fixed step.
9. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：The rear end of the adjusting rod (12)
It is additionally provided with the locking nut (16) for preventing adjusting rod (12) from pine.
10. reciprocating pump according to claim 1 is without backflow variable device, it is characterised in that：The rear end of the valve rod (5) is also
It is provided with dump valve (7) and discharges valve spring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510690166.5A CN105221400B (en) | 2015-10-22 | 2015-10-22 | Backflow-free variable device for reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510690166.5A CN105221400B (en) | 2015-10-22 | 2015-10-22 | Backflow-free variable device for reciprocating pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221400A CN105221400A (en) | 2016-01-06 |
| CN105221400B true CN105221400B (en) | 2017-05-03 |
Family
ID=54990586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510690166.5A Active CN105221400B (en) | 2015-10-22 | 2015-10-22 | Backflow-free variable device for reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221400B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594502Y (en) * | 2003-01-14 | 2003-12-24 | 李镇明 | Stepless output volume regulator of pressure pump |
| ATE375451T1 (en) * | 2003-11-25 | 2007-10-15 | Christian-Peter Babalic | DOSING PUMP |
| CN201757051U (en) * | 2010-02-12 | 2011-03-09 | 王广义 | Reciprocating type plunger accurate variable device |
| US9103339B2 (en) * | 2011-02-28 | 2015-08-11 | James H. Gammon | Piston pump |
| CN202108711U (en) * | 2011-06-13 | 2012-01-11 | 王湫锂 | Proportion adjustment pump of ternary injection and polymer injection for oil field |
| CN205089584U (en) * | 2015-10-22 | 2016-03-16 | 宁波合力机泵有限公司 | Reciprocating pump does not have backward flow variable device |
-
2015
- 2015-10-22 CN CN201510690166.5A patent/CN105221400B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105221400A (en) | 2016-01-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 315105, integrity investment Road, Yinzhou District investment center, Ningbo, Zhejiang, Yinzhou 888 Applicant after: Ningbo Heli pump Limited by Share Ltd Address before: 315105 Yinzhou investment and entrepreneurship center, Ningbo, road, No. 888 Applicant before: Heli Mechanical Pump Co., Ltd., Ningbo City |
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| COR | Change of bibliographic data | ||
| CB02 | Change of applicant information |
Address after: 315105 Yinzhou District investment and entrepreneurship center, Ningbo, road, No. 888 Applicant after: Ningbo Heli pump Limited by Share Ltd Address before: 315105, integrity investment Road, Yinzhou District investment center, Ningbo, Zhejiang, Yinzhou 888 Applicant before: Ningbo Heli pump Limited by Share Ltd |
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| COR | Change of bibliographic data | ||
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| GR01 | Patent grant |