CN105156309A - Novel diaphragm pump - Google Patents
Novel diaphragm pump Download PDFInfo
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- CN105156309A CN105156309A CN201510519663.9A CN201510519663A CN105156309A CN 105156309 A CN105156309 A CN 105156309A CN 201510519663 A CN201510519663 A CN 201510519663A CN 105156309 A CN105156309 A CN 105156309A
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- diaphragm pump
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Abstract
The invention discloses a novel diaphragm pump. The novel diaphragm pump comprises a power end, a hydraulic end, a transmission device, a pressure balance system, a motor and a base. The power end comprises a machine case, a swing wheel, crankshafts, connecting rods, sealing stuffing boxes, cross heads, springs and bearings. The hydraulic end comprises a cylinder body, pump heads, a liquid inlet valve, a liquid outlet valve, a valve seat, diaphragms, a front diaphragm protection plate and a rear diaphragm protection plate. The transmission device comprises a large belt wheel, a small belt wheel and a belt. A pressure balance system comprises an oil tank, an oil supplementing valve, an oil pipe, an oil returning valve and an oil pump. The novel diaphragm pump can be used for oil-gas mixing transportation, crude oil conveying, oil field water injection and other technology production, and has the beneficial effects of being simple in structure, small in number of components, wide in application range and high in pump efficiency.
Description
Technical field
The invention belongs to dynamic power machine, relate to a kind of new types of diaphragm pump, particularly a kind of for multi-purpose diaphragm pumps such as oil and gas multiphase flow, oil-field flooding, Crude Oil Transportation.
Background technique
It is ripe as water injection pump, slurry pump, fracturing pump, oil transfer pump etc. that reciprocating pump is used for oil field, in recent years Application and Development reciprocating diaphragm pump, these pumps are all structurally have employed the linear reciprocating motion that convert rotational motion is crosshead, intermediate bar and plunger by crankshaft rotating drivening rod, sealed letter body device is set between plunger and cylinder body, for the sealing to media cavity, Leakage prevention; Power end and fluid end transition adopt intermediate bar to be connected crosshead and plunger, power end intermediate bar also relates to the sealing problem of lubricant oil, often occur that water problem is leaked in the bad leakage of oil of sealing, and this conventional reciprocating pump structure power end parts is many, pump body structure is complicated, and volume is larger; Bent axle, crosshead need to take the measures such as pressure lubrication at the low rotational speed.The conventional reciprocating diaphragm pump pump housing is comparatively large, complex structure, and part inconvenience is changed in maintenance.
In order to solve the deficiency that conventional reciprocating pump structure exists, finding that novel reliability is high, the simple new types of diaphragm pump of structure, is one of problem of paying close attention to of those skilled in the art.
Summary of the invention
The object of the present invention is to provide a kind of new types of diaphragm pump, to realize the multipurposes such as Crude Oil Transportation, oil-field flooding, oil and gas multiphase flow.
To achieve these goals, the present invention takes following solution: a kind of new types of diaphragm pump, it is characterized in that, comprise power end, fluid end, transmission device, pressure balancing system, motor and base, wherein power end comprises cabinet, escapement, bent axle, connecting rod, sealed letter body, crosshead, spring, bearing; Fluid end comprises cylinder body, pump head, liquid feed valve assembly and liquid discharging valve assembly and valve seat, barrier film and front and back protective plate; Transmission device comprises large small belt pulley, belt; Pressure balancing system comprises fuel tank, Fill valve, oil pipe, scavenger valve, oil pump;
Double roller bearing installed by described bent axle, and often organize double roller bearing outer ring and escapement is housed, escapement is connected with connecting rod, and one end that connecting rod is connected with escapement is ball head structure, can swing in the draw-in groove of escapement; Cabinet is provided with crosshead slideway, and the other end of connecting rod is connected with crosshead by crosshead pin, arranges sealed letter body between connecting rod and crosshead slideway; Rear protective plate in cylinder body and be barrier film between front protective plate, cylinder body is divided into media cavity and hydraulic pressure cavity by front and back protective plate and barrier film; The cylinder interior of media cavity side is equipped with into, liquid discharging valve assembly and valve seat, and top is provided with method lid and liquid port, and lower end is provided with liquid inlet pipe; Pump head is equipped with in cylinder body front end, and pump head and cylinder body fixing bolt B fix; Inferior part of the cylinder block arranges a fuel tank, and Fill valve, scavenger valve and oil pipe are housed, and oil pump is loaded on the pipeline between fuel tank and Fill valve; Big belt pulley is installed in one end of bent axle, and belt connects large small belt pulley, and small belt pulley is arranged on motor shaft end, and motor and casing fixing bolt A are fixed on base; Casing is connected with cylinder body.
Preferably, bent axle is arranged eccentric wheel, bearing and escapement, escapement swings in cabinet around connecting rod head, and do linear reciprocating motion with connecting rod, be the linear reciprocating motion of connecting rod by the convert rotational motion of bent axle simultaneously.
Preferably, barrier film is by media cavity and lubricating cavity isolation, and barrier film adopts double layer construction, can arrange diaphragm failures sensor alarm.
Preferably, sealed letter body forms by regulating gland, packing filling, guide ring and spacer ring.
Preferably, bent axle can adopt three cylinders, five cylinders or other multi-cylinder structures.
Preferably, power end structural type adopts ball valve, cone valve, valve block, vertical split-body valve or horizontal combination brake switch and proporting, can select according to concrete operating mode and adaptability.
Preferably, the exhaust port pipeline of oil pump should arrange safety overflow valve and stable-pressure device, wherein stable-pressure device is accumulator or spherical voltage stabilizer.
Preferably, cabinet adopts round structure, and escapement can along cabinet inner chamber orbiting motion, and cabinet inner chamber is less, in-built lubricant oil, for the lubrication of bearing, escapement, connecting rod, crosshead parts.
Preferably, cabinet inner cross head slideway can with cabinet one, also can design separately crosshead slideway and be installed on cabinet.
Present invention utilizes the principle of slidercrank mechanism, have employed the eccentric rotary motive power end structure of reciprocating pump, motor is by the crankshaft rotating of large and small belt pulley, belt drive pump, bent axle and eccentric eccentric structure drive escapement to swing centered by connecting rod and to-and-fro motion in cabinet, box house is become active chamber, and connecting rod pumps along with the change of escapement position.When connecting rod drives crosshead to move backward, barrier film is near rear protective plate, now liquid feed valve is opened, liquid enters pump head, and terminate until connecting rod moves to rearmost position (crank rotation 180 °) suction process, connecting rod starts to travel forward, hydraulic oil in compression slideway cavity promotes barrier film reach near front protective plate, liquid in pump head valve pocket is squeezed, and pressure raises, and thus liquid feed valve is closed, liquid discharging valve is opened, and liquid is promoted to be discharged through liquid discharging valve by barrier film.
Media cavity and hydraulic pressure cavity are separated with barrier film by protective plate, and when barrier film arrives at cavity inner wall, protective plate is closed automatically, adopt pressure balancing system, cavity inner wall surface forms formation state, makes barrier film can not be damaged because of extrusion-deformation, thus effectively improves working life.
In running, when hydraulic pressure cavity internal pressure is higher than rating value, scavenger valve take-off, the hydraulic oil discharged enters fuel tank through return tube; When the hydraulic oil in hydraulic pressure cavity is not enough, Fill valve is opened automatically, and the hydraulic oil in fuel tank enters hydraulic pressure cavity by repairing pipe, makes the pressure of hydraulic pressure cavity inner septum both sides remain balance.
Outlet valve in Fill valve and scavenger valve can make a small amount of air in hydraulic pressure cavity discharge, and avoids producing cavitation phenomenon, guarantees normal operation.In exhaust process, have minute quantity hydraulic oil and discharge together through return tube, now Fill valve also has the hydraulic oil of identical amount to supplement to enter in cavity, form the Inner eycle of hydraulic oil simultaneously.
The eccentric rotation motion of bent axle is converted into the linear reciprocating motion of connecting rod, crosshead by new types of diaphragm pump power end, adopt membrane configuration by media cavity and lubricant reservoir isolation, pump valve structure can adopt ball valve, valve block, vertical structure or horizontal type structure, specifically needs to determine according to technique.
New types of diaphragm pump can be used for multiple explained hereafter such as oil and gas multiphase flow, Crude Oil Transportation, oil-field flooding, the feature that it has, and structure is simple, component are few, applied widely, pump efficiency is high.
New types of diaphragm pump performance feature of the present invention is:
1, conventional Reciprocatin pump power end structure is solved complicated, the problem that lubricant oil, working medium leak.
2, this pump can be used for the field of the medium transport such as oil and gas multiphase flow, Crude Oil Transportation, water-flooding pump for oil field.
3, this structure is a kind of displacement pump, and have structure simple, compact, parts are less, few easy workout part, life-span length, small volume, the features such as wide accommodation.
4, this pump achieves and synchronous enters discharge opeing continuously, output liquid continuous uniform, and the change of composition can not occur the liquid of receptance, and efficiency is higher, power consumption is less.
5, pressure energy regulates automatically with output pipeline resistance, and discharge capacity according to actual conditions by adjusting rotary speed speed, can increase or reduce certain amplitude under capacity rating.
Accompanying drawing explanation
Fig. 1 is new types of diaphragm pump structure schematic diagram of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, content of the present invention is described in further detail.
As depicted in figs. 1 and 2, new types of diaphragm pump of the present invention, comprise liquid inlet pipe (1), crosshead slideway (2), crosshead (3), crosshead pin (4), connecting rod (5), sealed letter body (6), bearing (7), roller bearing (8), bent axle (9), base (10), motor (11), big belt pulley (12), belt (13), small belt pulley (14), fixing bolt A (15), cabinet (16), escapement (17), cylinder body (18), bonnet (19), liquid port (20), fixing bolt B (21), liquid discharging valve assembly (22), scavenger valve (24), return tube (25), liquid feed valve assembly (26), Fill valve (28), repairing pipe (29), oil pump (30), fuel tank (31), front protective plate (32), rear protective plate (33), barrier film (34), the parts such as pump head (35).
Bent axle (9) is arranged on cabinet (16) by bearing (7); Bent axle (9) is upper installs double roller bearing (8), often organize double roller bearing (8) outer ring and escapement (17) is housed, escapement (17) is connected with connecting rod (5), one end that connecting rod (5) is connected with escapement (17) is ball head structure, and connecting rod (5) this end can swing in the draw-in groove of escapement (17); Cabinet (16) is provided with crosshead slideway (2), the other end of connecting rod (5) is connected with crosshead (3) by crosshead pin (4), arranges sealed letter body (6) between connecting rod (5) and crosshead slideway (2) near bent axle (9) side; Rear protective plate (33) in cylinder body (18) and be barrier film (34) between front protective plate (32), cylinder body is divided into media cavity and hydraulic pressure cavity by forward and backward protective plate (32,33) and barrier film (34); Liquid discharging valve assembly (22) and liquid feed valve assembly (26) are equipped with in cylinder body (18) inside of media cavity side, cylinder body (18) top is provided with Shang Fagai (19) and liquid port (20), and lower end is provided with liquid inlet pipe (1); Pump head (35) is equipped with in cylinder body (18) front end, and pump head (35) is fixed with cylinder body (18) fixing bolt B (21); Cylinder body (18) bottom arranges a fuel tank (31), and Fill valve (28), scavenger valve (24), repairing pipe (29) and return tube (25) are housed, oil pump (30) is loaded on repairing pipe (29).
Big belt pulley (12) is installed in one end of bent axle (9), belt (13) connects large small belt pulley (12,14), small belt pulley (14) is arranged on motor (11) axle head, motor (11) and cabinet (16) fixing bolt A (15) are fixed on base (10), and cabinet (16) is connected with cylinder body (18).
Motor (11) is by large, small belt pulley (12, 14), belt (13) drives the bent axle (9) of pump to rotate, escapement (17) is driven to swing and to-and-fro motion centered by connecting rod (5) in cabinet (16) in bent axle (9) rotary course, drivening rod (5) is reciprocating simultaneously, when connecting rod (5) drives crosshead (3) to move backward, barrier film (34) is near rear protective plate (33), now liquid feed valve assembly (26) is opened, liquid enters pump head (35), terminate until connecting rod moves to rearmost position (crank rotation 180 °) suction process, connecting rod starts to travel forward, hydraulic oil in compression crosshead slideway (2) cavity promotes barrier film (34) reach near front protective plate (32), liquid in pump head (35) valve pocket is squeezed, pressure raises, thus liquid feed valve assembly (26) is closed, liquid discharging valve assembly (22) is opened, liquid is promoted to be discharged through liquid discharging valve assembly (22) by barrier film (34).
Media cavity and hydraulic pressure cavity are separated with barrier film (34) by forward and backward protective plate (32,33), when barrier film (34) arrives at cavity inner wall, protective plate is closed automatically, adopt pressure balancing system, cavity inner wall surface forms formation state, make barrier film (34) can not be damaged because of extrusion-deformation, thus effectively improve working life.
In running, when hydraulic pressure cavity internal pressure is higher than rating value, scavenger valve (24) take-off, the hydraulic oil discharged enters fuel tank (31) through return tube (25); When the hydraulic oil in hydraulic pressure cavity is not enough, Fill valve (28) is opened automatically, hydraulic oil in fuel tank (31) enters hydraulic pressure cavity by repairing pipe (29), makes the pressure of hydraulic pressure cavity inner septum (34) both sides remain balance.
Outlet valve in Fill valve (28) and scavenger valve (24) can make a small amount of air in hydraulic pressure cavity discharge, and avoids producing cavitation phenomenon, guarantees normal operation.In exhaust process, have minute quantity hydraulic oil and discharge together through return tube, now Fill valve (28) also has the hydraulic oil of identical amount to supplement to enter in cavity, form the Inner eycle of hydraulic oil simultaneously.
New types of diaphragm pump power end have employed the eccentric rotary motive power end structure of reciprocating pump, the eccentric rotation motion of bent axle (9) is converted into the linear reciprocating motion of connecting rod (5), crosshead (3), adopt membrane configuration by media cavity and hydraulic pressure cavity isolation, power end can adopt ball valve, valve block, vertical structure or horizontal type structure, specifically need to determine according to technique.
The above; it is only preferred embodiment of the present invention; not any restriction is done to the present invention, every above embodiment is done according to invention technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. a new types of diaphragm pump, it is characterized in that, comprise power end, fluid end, transmission device, pressure balancing system, motor (11) and base (10), wherein power end comprises cabinet (16), escapement (17), bent axle (9), connecting rod (5), sealed letter body (6), crosshead (3), bearing (7); Fluid end comprises cylinder body (18), pump head (35), liquid feed valve assembly (22), liquid discharging valve assembly (26) and valve seat (10), barrier film (34) and front and back protective plate (32,33); Transmission device comprises large small belt pulley (12,14), belt (13); Pressure balancing system comprises fuel tank (31), Fill valve (28), repairing pipe (29), scavenger valve (24), oil pump (30);
Described bent axle (9) is upper installs double roller bearing (8), often organize double roller bearing outer ring and escapement (17) is housed, escapement (17) is connected with connecting rod (5), one end that connecting rod (5) is connected with escapement (17) is ball head structure, can swing in the draw-in groove of escapement (17); Cabinet (16) is provided with crosshead slideway (2), the other end of connecting rod (5) is connected with crosshead (3) by crosshead pin (4), arranges sealed letter body (6) between connecting rod (5) and crosshead slideway (2) near bent axle (9) side; Rear protective plate (33) in cylinder body (18) and be barrier film (34) between front protective plate (32), cylinder body (18) is divided into media cavity and hydraulic pressure cavity by front and back protective plate and barrier film (34); The cylinder interior of media cavity side is equipped with liquid feed valve assembly (22) and liquid discharging valve assembly (26), cylinder body (18) top is provided with Shang Fagai (19) and liquid port (20), and lower end is provided with liquid inlet pipe (1); Pump head (35) is equipped with in cylinder body (18) front end, and pump head (35) is fixed with cylinder body (34) fixing bolt B (21); Cylinder body (34) bottom arranges a fuel tank (31), and Fill valve (28), scavenger valve (24), return tube (25) and repairing pipe (29) are housed, oil pump (30) is loaded on the repairing pipeline between fuel tank (31) and Fill valve (28); Big belt pulley (12) is installed in one end of bent axle (9), belt (13) connects large and small belt pulley (12,14), small belt pulley (14) is arranged on motor (11) axle head, and motor (11) and casing (16) fixing bolt A (15) are fixed on base (10); Cabinet (16) is connected with cylinder body (18).
2. new types of diaphragm pump as claimed in claim 1, it is characterized in that bent axle (9) being arranged eccentric wheel, double roller bearing (8) and escapement (17), escapement (17) swings in cabinet (16) around connecting rod head, do linear reciprocating motion with connecting rod, be the linear reciprocating motion of connecting rod by the convert rotational motion of bent axle simultaneously.
3. new types of diaphragm pump as claimed in claim 1, it is characterized in that barrier film (34) is by media cavity and hydraulic pressure cavity isolation, barrier film adopts double layer construction, can arrange diaphragm failures sensor alarm.
4. new types of diaphragm pump as claimed in claim 1, is characterized in that sealed letter body (6) is made up of adjustment gland, packing filling, guide ring and spacer ring.
5. new types of diaphragm pump as claimed in claim 1, is characterized in that bent axle (9) can adopt three cylinders, five cylinders or other multi-cylinder structures.
6. new types of diaphragm pump as claimed in claim 1, is characterized in that power end structure adopts ball valve, cone valve, valve block, vertical split-body valve or horizontal combination brake switch and proporting, can select according to concrete operating mode and adaptability.
7. new types of diaphragm pump as claimed in claim 1, is characterized in that should arranging safety overflow valve and stable-pressure device on the exhaust port pipeline of oil pump (30).
8. new types of diaphragm pump as claimed in claim 1, it is characterized in that cabinet (16) adopts round structure, escapement (17) can along cabinet inner chamber orbiting motion, and cabinet inner chamber is less, in-built lubricant oil, for the lubrication of associated components.
9. new types of diaphragm pump as claimed in claim 1, is characterized in that cabinet (16) inner cross head slideway (2) and cabinet one, or is installed on separately on cabinet.
10. new types of diaphragm pump as claimed in claim 7, is characterized in that stable-pressure device is accumulator or spherical voltage stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519663.9A CN105156309B (en) | 2015-08-21 | 2015-08-21 | A kind of new types of diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519663.9A CN105156309B (en) | 2015-08-21 | 2015-08-21 | A kind of new types of diaphragm pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105156309A true CN105156309A (en) | 2015-12-16 |
| CN105156309B CN105156309B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510519663.9A Expired - Fee Related CN105156309B (en) | 2015-08-21 | 2015-08-21 | A kind of new types of diaphragm pump |
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| Country | Link |
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| CN (1) | CN105156309B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172105A (en) * | 2018-02-26 | 2018-06-15 | 何茹清 | A kind of diaphragm pump operation principle demonstration teaching aid |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616012A (en) * | 1995-08-31 | 1997-04-01 | Hillman; Darrel D. | Ammonia pump |
| CN2546649Y (en) * | 2001-12-26 | 2003-04-23 | 上海化工研究院 | Diaphragm metering pump with oil supplying device |
| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN201486824U (en) * | 2009-08-18 | 2010-05-26 | 杭州大潮石化设备有限公司 | Hydraulic diaphragm type reciprocating pump with function of membrane breakage alarm |
| CN201496245U (en) * | 2009-09-29 | 2010-06-02 | 大连里瓦泵业有限公司 | Diaphragm rupture alarm structure of hydraulic diaphragm pump |
| CN102080651A (en) * | 2011-01-18 | 2011-06-01 | 杭州大潮石化设备有限公司 | Long-acting no-leakage plunger sealing structure for plunger type measuring pump |
| CN204851606U (en) * | 2015-08-21 | 2015-12-09 | 吉效科 | Novel diaphragm pump |
-
2015
- 2015-08-21 CN CN201510519663.9A patent/CN105156309B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5616012A (en) * | 1995-08-31 | 1997-04-01 | Hillman; Darrel D. | Ammonia pump |
| CN2546649Y (en) * | 2001-12-26 | 2003-04-23 | 上海化工研究院 | Diaphragm metering pump with oil supplying device |
| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN201486824U (en) * | 2009-08-18 | 2010-05-26 | 杭州大潮石化设备有限公司 | Hydraulic diaphragm type reciprocating pump with function of membrane breakage alarm |
| CN201496245U (en) * | 2009-09-29 | 2010-06-02 | 大连里瓦泵业有限公司 | Diaphragm rupture alarm structure of hydraulic diaphragm pump |
| CN102080651A (en) * | 2011-01-18 | 2011-06-01 | 杭州大潮石化设备有限公司 | Long-acting no-leakage plunger sealing structure for plunger type measuring pump |
| CN204851606U (en) * | 2015-08-21 | 2015-12-09 | 吉效科 | Novel diaphragm pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172105A (en) * | 2018-02-26 | 2018-06-15 | 何茹清 | A kind of diaphragm pump operation principle demonstration teaching aid |
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| CN105156309B (en) | 2017-06-16 |
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