CN104454425A - Multiphase double-cylinder double-action reciprocation rotary pump - Google Patents
Multiphase double-cylinder double-action reciprocation rotary pump Download PDFInfo
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- CN104454425A CN104454425A CN201310417658.8A CN201310417658A CN104454425A CN 104454425 A CN104454425 A CN 104454425A CN 201310417658 A CN201310417658 A CN 201310417658A CN 104454425 A CN104454425 A CN 104454425A
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Abstract
The invention discloses a multiphase double-cylinder double-action reciprocation rotary pump and relates to a structural improvement of a multiphase double-cylinder double-action reciprocation rotary pump. The invention provides a multiphase double-cylinder double-action reciprocation rotary pump which can operate within a speed range of 1000-1440r/min and has good sealability and high volumetric efficiency. The pump comprises a power end and a fluid end and is structurally characterized in that the power end comprises a crankshaft; two connecting rods are connected with the crankshaft; a crosshead is connected with the other end of each connecting rod; the other end of each crosshead is connected with a piston via a guide rod; the fluid end comprises hydraulic cylinders; a suction valve and a discharge valve are arranged on the upper side and the lower side on one side, not connected with the power end, of each hydraulic cylinder respectively; a hydraulic cylinder part is arranged on the other side of each hydraulic cylinder; and the pistons are arranged in the hydraulic cylinder parts.
Description
Technical field
the present invention relates to a kind of improvement of leggy double cylinder double acting reciprocating rotary pump structure.
Background technique
in industrial processes, lubricant oil is used in all kinds mechanically to reduce friction, protection machinery and the fluid lubricant of workpiece, mainly play lubrication, cooling, antirust, clean, seal and the effect such as buffering.The larger purity that have impact on lubricant oil and the usabilities such as the air in lubricant oil, moisture or soluble detrimental gas, measure more advanced at present utilizes vacuum oil purifier to be removed.Existing a kind of oil conditioner for power plant's production, during delivery test, oil conditioner performance meets usage requirement, but finds that when the working site of power plant uses the external gear pump oil drain pump actual oil drain quantity under design speed 1200 r/min in oil conditioner is far smaller than theoretical oil drain quantity; When reducing oil drain pump rotating speed, though oil extraction increases to some extent, but still being starkly lower than theoretical oil drain quantity, oil extraction requirement can not be met; When rotating speed brings up to 1440 r/min, oil drain pump oil extraction difficulty.Used crescent gear pump afterwards instead as oil drain pump, when rotating speed is at l200 r/min, actual oil drain quantity increases to some extent than external gear pump oil drain pump, but still is lower than theoretical oil drain quantity.When with carry high-revolving method increase oil drain quantity time, along with revolution speed raising gradually, actual oil drain quantity increases to some extent, but when rotating speed brings up to 1440 r/min, has occurred again with the identical problem of external gear pump oil drain pump, oil extraction difficulty.By analysis, main cause is that the flank of tooth is linear contact lay because gear pump relies on gear teeth meshing transmission, make the volumetric efficiency of pump and sealing relatively low; Oil pump gateway pressure reduction raises with rotating speed and reduces, and suction capacity the reason such as to weaken and causes.
Summary of the invention
the present invention is exactly for the problems referred to above, provides one in 1,000 one l440 r/min speed range work, to have good sealing, volumetric efficiency is high, leggy double cylinder double acting reciprocating rotary pump.
to achieve these goals, the present invention adopts following technological scheme, the present invention includes power end and fluid end, its structure outline is: power end comprises bent axle, bent axle is connected with two connecting rods, the other end of connecting rod is connected with crosshead, and the other end of crosshead is connected with piston by guide rod; Fluid end comprises fluid cylinder, and the both sides up and down of the side be not connected with power end of fluid cylinder are respectively arranged with suction valve and expulsion valve, and opposite side is provided with fluid cylinder, and piston is arranged in fluid cylinder.
as a kind of preferred version, leggy double cylinder double acting reciprocating rotary pump can be selected.
beneficial effect of the present invention.
1, can in 1,000 one l440 r/min speed range work.
the present invention includes power end and fluid end, its structure outline is: power end comprises bent axle, and bent axle is connected with two connecting rods, the other end of connecting rod is connected with crosshead, and the other end of crosshead is connected with piston by guide rod; Structure is simple, reliable for effect, can in 1,000 one l440 r/min speed range work.
2, volumetric efficiency is high.
pump of the present invention, when rated speed 1440 r/min, pumps inlet pressure difference in change procedure, and the volumetric efficiency of pump is very high between 0.95 to 0.98; The working efficiency of pump increases with the increase of pressure reduction, and when rated pressure, efficiency reaches 75%; The degree of vacuum of pump increases with pressure reduction and slowly increases, and degree of vacuum is between 74 mmHg to 88mmHg; The flow of pump slowly reduces with the increase of pressure reduction.Its value is from 9.7m
3
/ h to 9.2m
3
/ h gradually changes; The power of pump linearly increases with the increase of pressure reduction, and its value is up to 7.1 kw.These results suggest that the volumetric efficiency of pump is high.
3, good airproof performance, oil drain quantity are large.
rotary pump and gear pump have identical suction, oil extraction process, and the matching surface of pump relative movement part adopts face contact compared with gear pump, and leakage rate is few, and suction capacity is strong, and oil drain quantity is large, and bearing capacity is strong.
Accompanying drawing explanation
for technical problem solved by the invention, technological scheme and beneficial effect are clearly understood, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
fig. 1 is structural representation of the present invention.
in figure, 1 be fluid end, 2 be suction valve, 3 be expulsion valve, 4 be piston, 5 be power end, 6 be bent axle, 7 be connecting rod, 8 be crosshead, 9 for fluid cylinder.
Embodiment
as shown in the figure, the present invention includes power end 5 and fluid end 1, power end 5 comprises bent axle 6, bent axle 6 is connected with two connecting rods 7, and the other end of connecting rod 7 is connected with crosshead 8, and the other end of crosshead 8 is connected with piston 4 by guide rod; Fluid end 1 comprises fluid cylinder 9, and the two ends up and down of the side that fluid cylinder 9 is not connected with power end 5 are respectively arranged with suction valve 2 and expulsion valve 3, and opposite side is provided with fluid cylinder 9, and piston 4 is arranged in fluid cylinder 9.
leggy double cylinder double acting reciprocating rotary pump can be selected.
during pump work, bent axle 6 at the uniform velocity turns round, and the while that the piston 4 of each phase place being pivotal with bent axle 6, relative bent axle 6 moves back and forth.Piston 4 is in movement process, the two end part inner cylindrical surface of top, piston 4 two ends and piston hole and frame inner wall form two oil cylinders respectively, one end is oil suction cylinder, the other end is then oil extraction cylinder, when bent axle 6 continues revolution, along with the rotation suction of rotor, oil extraction are carried out simultaneously, oil extraction cylinder originally becomes oil suction cylinder and original oil suction cylinder becomes oil extraction cylinder.The external cylindrical surface at piston 4 two end part contacts with the two end part inner cylindrical surface in rotor upper piston hole pump inner high voltage oil district and low pressure oil to distinguish and separates.
above content is the further description done the present invention in conjunction with concrete preferred implementation; can not assert that specific embodiment of the invention is confined to these explanations; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the protection domain that claims that the present invention submits to are determined.
Claims (2)
1. leggy double cylinder double acting reciprocating rotary pump comprises power end (5) and fluid end (1), it is characterized in that power end (5) comprises bent axle (6), bent axle (6) is connected with two connecting rods (7), the other end of connecting rod (7) is connected with crosshead (8), and the other end of crosshead (8) is connected with piston (4) by guide rod; Fluid end (1) comprises fluid cylinder (9), and the two ends up and down of the side that fluid cylinder (9) is not connected with power end (5) are respectively arranged with suction valve (2) and expulsion valve (3), and opposite side is provided with fluid cylinder (9), and piston (4) is arranged in fluid cylinder (9).
2. leggy double cylinder double acting reciprocating rotary pump according to claim 1, is characterized in that selecting leggy double cylinder double acting reciprocating rotary pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417658.8A CN104454425A (en) | 2013-09-14 | 2013-09-14 | Multiphase double-cylinder double-action reciprocation rotary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417658.8A CN104454425A (en) | 2013-09-14 | 2013-09-14 | Multiphase double-cylinder double-action reciprocation rotary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454425A true CN104454425A (en) | 2015-03-25 |
Family
ID=52901027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310417658.8A Pending CN104454425A (en) | 2013-09-14 | 2013-09-14 | Multiphase double-cylinder double-action reciprocation rotary pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002827A (en) * | 2014-10-30 | 2017-08-01 | 尚帕提·罗摩·拉朱 | A kind of instant energy resource systems of KVSV |
-
2013
- 2013-09-14 CN CN201310417658.8A patent/CN104454425A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107002827A (en) * | 2014-10-30 | 2017-08-01 | 尚帕提·罗摩·拉朱 | A kind of instant energy resource systems of KVSV |
| CN107002827B (en) * | 2014-10-30 | 2019-08-30 | 尚帕提·罗摩·拉朱 | A kind of instant energy resource system of KVSV |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |