CN101737320B - Method for designing internal-rotation constant-pressure pump - Google Patents
Method for designing internal-rotation constant-pressure pump Download PDFInfo
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- CN101737320B CN101737320B CN2008102322447A CN200810232244A CN101737320B CN 101737320 B CN101737320 B CN 101737320B CN 2008102322447 A CN2008102322447 A CN 2008102322447A CN 200810232244 A CN200810232244 A CN 200810232244A CN 101737320 B CN101737320 B CN 101737320B
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- pump housing
- eccentric shaft
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- 238000000034 method Methods 0.000 title description 8
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 5
- 210000005056 cell body Anatomy 0.000 claims description 68
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000008676 import Effects 0.000 description 8
- 238000009738 saturating Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000010349 pulsation Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to an internal-rotation constant-pressure pump which is characterized in that the inner surface of the body (1) of the internal-rotation constant-pressure pump is provided with a spiral groove, the spiral groove has a rectangular normal section, a spiral groove body (2) is sleeved between the body (1) of the internal-rotation constant-pressure pump and an eccentric shaft (5), the spiral groove body (2) is a hollow cavity, the outer surface of the spiral groove body (2) is provided with a spiral groove which is the same as the spiral groove arranged on the inner surface of the body (1) of the internal-rotation constant-pressure pump in shape and is matched with the same in size, the spiral groove arranged on the inner surface of the body (1) of the internal-rotation constant-pressure pump is meshed with the spiral groove arranged on the outer surface of the spiral groove body (2), the inner surface of the spiral groove body (2) and the outer surface of the eccentric shaft (5) are in arc fit and sliding connection, and when rotating, the eccentric shaft (5) drives the spiral groove body (2) to do planetary motion so that the spiral groove arranged on the inner surface of the body (1) of the internal-rotation constant-pressure pump and the spiral groove arranged on the outer surface of the spiral groove body (2) are in rotating fit to boost and pump out the liquid. The internal-rotation constant-pressure pump can output high pressure, change the flow rate at constant pressure and transmit liquid and gas in a mixing way and has good internal sealing effect, small volume, low noise, low energy consumption, low cost and wide application range.
Description
Technical field
The invention belongs to the design method of a kind of design method of displacement pump, particularly a kind of internal-rotation constant-pressure pump.
Background technique
Along with the develop rapidly of China's modern industry, in a lot of fields a kind of energy-saving and environmental protection of demand, high-lift, pump product that delivery pressure is constant.It is the constant-pressure energy-saving environment protection type water pump that changeable flow again can be high-lift that the city high-floor feedwater is badly in need of; Advanced oil-gas multi-phase mixed delivering pump more is badly in need of in oil field, particularly offshore oilfield.Yet existing pump can't satisfy above requirement.
Reciprocating pump: though easily realize high-liftly, because complex structure and the pulsation of the height that back and forth causes, must cause that noise is large, mass flow discrepancy even, manufacture cost is high.
Centrifugal pump: because can't low cruise, the pump housing is clumsy, higher and very difficult control flow consumes energy.
Screw pump: though the constant advantage of delivery pressure is arranged.But in let out large, volume large, accuracy of manufacturing is higher.
Helical rotor pump: though the advantages such as delivery pressure is constant, small volume are arranged, rubber sleeve defeated high temperature media easy to wear, difficult and the difficult high pressure of realizing.
Gear pump: though low cost of manufacture, be widely used, noise is large, the life-span is short, be difficult for defeated high temperature media and the difficult high pressure of realizing.
Vane pump: complex structure, cost height.
Vortex pump: cost is high, pulsation is arranged, discharge capacity is little.
Two rotor screw pump is to be embedded in the main rotor cavity with the external diameter spiral spring identical with the power rotor internal diameter, is slidingly matched by the spiral chute on spiral spring and the driven rotor and works.The import of liquid and outlet are divided into the two ends of power rotor, and its lift only is 300 meters (about 3Mpa).Its main deficiency is: 1. this pump main rotor is housing, and a spiral spring is embedded in the main rotor, is Split type structure, and this structure is difficult to bear high pressure; 2. the sealing difficult problem between 300 meters explanations of lift spiral is solved not yet at all.
Summary of the invention
It is high to the purpose of this invention is to provide a kind of delivery pressure, but the fixed-voltage altering-current amount, can liquid, the design method of the mixed defeated internal-rotation constant-pressure pump of gas, good seal and volume is little, noise is low, energy consumption is low, low cost of manufacture, applied range in its.
The object of the present invention is achieved like this, design a kind of design method of internal-rotation constant-pressure pump, this pump comprises the pump housing, eccentric shaft, end cap, seal ring, oil sealing, bearing, it is characterized in that: on the pump housing internal surface spiral chute is arranged, the spiral fluted Normal section is rectangle, cover has the spiral cell body between the pump housing and eccentric shaft, the spiral cell body is hollow cavity, it is identical with the spiral chute shape of pump housing internal surface that its outer surface has, the spiral chute that size matches, the external spiral groove of the inner spiral groove of the pump housing and spiral cell body is intermeshing, and the internal surface of spiral cell body and eccentric shaft are being slidingly connected of cooperating of camber line; When eccentric shaft rotates, drive the spiral cell body and do planetary motion, thereby turn between the spiral chute on pump housing spiral chute and the spiral chute external surface being cooperated liquid boosted pumps.
The internal surface of described spiral cell body and the outer surface of eccentric shaft be camber line cooperate be slidingly connected the time, the internal surface of spiral cell body is cylindrical, the outer surface of eccentric shaft is the circular arc of projection; Or the internal surface of spiral cell body be the projection circular arc, the outer surface of eccentric shaft is cylindrical.
Cover has eccentric bushing on the axial plane of described eccentric shaft, cover has the spiral cell body between the pump housing and eccentric bushing, the internal surface of spiral cell body and the outer surface of eccentric bushing are being slidingly connected of cooperating of camber line, eccentric shaft is connected with the end cover body of the pump housing by bearing, and liquid-inlet and liquid outlet are at the two ends of the pump housing or on end cover body; When eccentric shaft and eccentric bushing rotate, drive the spiral cell body and do planetary motion, thereby turn between the spiral chute on pump housing spiral chute and the spiral chute external surface being cooperated liquid boosted pumps.
The internal surface of described spiral cell body is cylindrical, the outer surface of eccentric bushing is that the circular arc of projection or the internal surface of spiral cell body are the circular arc of projection, the outer surface of eccentric bushing is cylindrical, and the internal surface of spiral cell body and the outer surface of eccentric bushing are being slidingly connected of cooperating of camber line like this.
Described spiral cell body internal surface is fixedly connected with universal rotation set.
Be to be threaded between described eccentric bushing and the eccentric shaft, or key connect, or integrative-structure, eccentric bushing can be realized self-regulated, satisfies the track requirement that the spiral cell body is done planetary motion.
Spiral chute on the described pump housing internal surface and their pitch of spiral chute on the spiral chute external surface are gradual changes, and the spiral chute pitch of pump housing liquid-inlet end is greater than the spiral chute pitch of liquid outlet end; Reach the internal pressurization effect by gradual change Seal cage volume like this.
Described pump housing internal surface has two groups of spiral chutes that sense of rotation is opposite, and both the pump housing was the bispin body structure, and the eccentric shaft overcoat has two groups of spiral cell bodies that rotation direction is opposite; Two eccentric bushings are housed on the eccentric shaft, and eccentric direction is opposite; Two ring tracks are separately fixed on the end cap of the opposite external end face of spiral chute of two groups of rotation directions; The spiral chute of left side pump housing internal surface and the external spiral groove size of left side spiral cell body match merging intermeshing be left-handed to, the spiral chute of right side pump housing internal surface and the external spiral groove size of right-hand screw cell body match merge intermeshing be dextrorotation to, rotation by eccentric shaft, liquid-inlet is divided into the two ends of the pump housing, and liquid outlet is pump housing middle part between two groups of spiral cell bodies.
The described pump housing is the outward turning body structure, pump housing rotation, and eccentric shaft is motionless, and there is respectively port hole at the two ends of eccentric shaft, and a port of port hole is communicated with liquid-inlet or liquid outlet, and the another port of port hole is communicated with pump housing inner cavity.
Described end cover body is to be made of the ring track that connects on the end cap interior edge face.
Internal-rotation constant-pressure pump characteristics of the present invention are: this pump structure has caught rectangular spiral groove, groove to cooperate the rule of sliding, not only solve rectangle inner spiral groove and the pump housing this difficult problem that becomes one structure, and fundamentally solved a sealing difficult problem that cooperates between rectangle inner spiral groove and rectangle external spiral groove.
1. this pump is owing to be spiral motion, and its formed Seal cage is heterogeneous type Seal cage, so the pressure pulsating movement free of output is stably all the time.
2. this pump is because internal spiral cell body and pump case are integrated, and these characteristics of its structure can satisfy high-lift requirement, and delivery pressure can reach 30Mpa above (lift is more than 3000 meters).
3. this pump since the spiral seal line be in all the time the optimum state, thereby in let out very little.Can be at pressure constant state by changing the rotating speed variable-flow when carrying general liquid, but and liquid, gas mixed defeated.
4. this pump is because internal structure is metalwork, so can carry high temperature media.
5. this pump is because simple in structure, and without valve member, inner piece is and rotatablely moves, so noise is low, energy consumption is low, low cost of manufacture.
6. this pump is owing to belong to internal screw pump, and internal structure is compact especially, so volume is little, can satisfy the requirement of the special industries such as oil field fully.
Description of drawings
The present invention will be further described below in conjunction with embodiment's accompanying drawing.
Fig. 1 is embodiment's 1 structural representation;
Fig. 2 is embodiment's 2 structural representations;
Fig. 3 is embodiment's 3 structural representations;
Fig. 4 is embodiment's 4 structural representations.
Among the figure: 1, the pump housing; 2, spiral cell body; 3, universal rotation set; 4, eccentric bushing; 5, eccentric shaft; 6, ring track; 7, bearing; 8, oil sealing; 9, saturating end cap; 10, vexed end cap.
Embodiment
During installation, the spiral cell body 2 that universal rotation set 3 is housed is contained in the pump housing 1, makes the pump housing 1 spiral chute place the screw channel of spiral cell body 2; The eccentric shaft 5 that eccentric bushing 4 is housed is contained in the universal rotation set 3; Two ring track 6 usefulness screws are solid on saturating end cap 9 and vexed end cap 10 respectively, and bearing 7, oil sealing 8 are divided on end cap 9 and the vexed end cap 10.The outlet end that vexed end cap 10 is contained in the pump housing 1 is fixed with bolt.The entrance point that saturating end cap 9 is contained in the pump housing 1 is fixed with bolt.
It can be that the pump housing 1 maintains static for this internal-rotation constant-pressure pump, does planetary motion by the rotation drive spiral cell body 2 of eccentric shaft 5 along pump housing rectangle inner spiral groove and ring track 3.Eccentric shaft 5 can be that clockwise direction rotates, and also can be counterclockwise to rotate, and difference is that the liquid entering hole when turning clockwise becomes liquid outlet when rotating counterclockwise, and namely liquid entering hole and liquid outlet are inverted, and pump structure is constant.Can also be that eccentric shaft 5 maintains static, by the pump housing 1 rotation, also be that liquid entering hole and liquid outlet are inverted this moment, and pump body structure is constant.The same pump housing 1 can be that clockwise direction rotates, and also can be counterclockwise to rotate, and difference is that liquid entering hole and liquid outlet are inverted, and pump body structure is constant.
The double-rotor internal-rotation constant pressure pump working principle is: the pump housing 1 maintains static, and drives screw channel by the rotation of eccentric shaft 5 and revolves body 2 and do planetary motion along pump housing rectangle inner spiral groove and ring track 6.The formed heterogeneous Seal cage of two spiral chutes is constantly from each ends of two imports to the motion of the Way out of centre, thereby the import of liquid from two ends sucked and discharge from outlet with the pressure of steady state value.
The external internal-rotation constant pressure pump working principle of revolving of outward turning is: do not turn during eccentric shaft 5 work, and be fixed on the pump bracket.The pump housing 1 rotates around eccentric shaft 5 by two saturating end caps 9, drives spiral cell body 2 and does planetary motion along the pump housing 1 internal surface spiral chute and ring track 6.Two spiral chutes close formed heterogeneous Seal cage constantly from import one end to outlet one end motion, thereby liquid is sucked and discharges from outlet with constant pressure from import.
Need to prove that embodiment 1, embodiment 3, embodiment 4 can forward and reversely rotate.Embodiment 2 can only single direction rotation.The present invention not only is confined to above embodiment, and the present invention is identical with the prior art structure to the part that pump structure is not described in detail, and be not described in detail is identical with known pump all at needs sealing positions such as end caps such as the mounting point of seal ring.
Claims (6)
1. internal-rotation constant-pressure pump, this pump comprises the pump housing (1), eccentric shaft (5), end cap, seal ring, oil sealing (8), bearing (7), it is characterized in that: on the pump housing (1) internal surface spiral chute is arranged, spiral chute and the pump housing become one, the spiral fluted Normal section is rectangle, cover has spiral cell body (2) between the pump housing (1) and eccentric shaft (5), spiral cell body (2) is hollow cavity, it is identical with the spiral chute shape of the pump housing (1) internal surface that its outer surface has, the spiral chute that size matches, the external spiral groove of the inner spiral groove of the pump housing (1) and spiral cell body (2) is intermeshing, and the internal surface of spiral cell body (2) and eccentric shaft (5) outer surface are being slidingly connected of cooperating of camber line; When eccentric shaft (5) when rotating, drive spiral cell body (2) and do planetary motion, thereby turn between the spiral chute on the pump housing (1) spiral chute and spiral cell body (2) outer surface being cooperated liquid boosted pumps; Spiral cell body (2) is by being fixed on ring track (6) location on end cap (9), the vexed end cap (10), the internal surface of described spiral cell body (2) and the outer surface of eccentric shaft (5) be camber line cooperate be slidingly connected the time, the internal surface of spiral cell body (2) is cylindrical, and the outer surface of eccentric shaft (5) is the circular arc of projection; Or the internal surface of spiral cell body (2) be the projection circular arc, the outer surface of eccentric shaft (5) is cylindrical; Cover has eccentric bushing (4) on the axial plane of described eccentric shaft (5), cover has spiral cell body (2) between the pump housing (1) and eccentric bushing (4), the internal surface of spiral cell body (2) and the outer surface of eccentric bushing (4) are being slidingly connected of cooperating of camber line, eccentric shaft (5) is connected with the end cover body of the pump housing (1) by bearing (7), and liquid-inlet and liquid outlet are at the two ends of the pump housing (1) or on end cover body; When eccentric shaft (5) and eccentric bushing (4) when rotating, drive spiral cell body (2) and do planetary motion, thereby turn between the spiral chute on the pump housing (1) spiral chute and spiral cell body (2) outer surface being cooperated liquid boosted pumps.
2. a kind of internal-rotation constant-pressure pump according to claim 1, it is characterized in that: the internal surface of described spiral cell body (2) is cylindrical, the outer surface of eccentric bushing (4) is that the circular arc of projection or the internal surface of spiral cell body (2) are the circular arc of projection, the outer surface of eccentric bushing (4) is cylindrical, and the internal surface of spiral cell body (2) and the outer surface of eccentric bushing (4) are being slidingly connected of cooperating of camber line like this.
3. a kind of internal-rotation constant-pressure pump according to claim 1, it is characterized in that: described spiral cell body (2) internal surface is fixedly connected with universal rotation set (3).
4. a kind of internal-rotation constant-pressure pump according to claim 1, it is characterized in that: be to be threaded between described eccentric bushing (4) and the eccentric shaft (5), or key connects, or integrative-structure, eccentric bushing (4) can be realized self-regulated, satisfies the track requirement that spiral cell body (2) is done planetary motion.
5. a kind of internal-rotation constant-pressure pump according to claim 1, it is characterized in that: their pitch of spiral chute on the spiral chute on the described pump housing (1) internal surface and spiral cell body (2) outer surface is gradual change, and the spiral chute pitch of the pump housing (1) liquid-inlet end is greater than the spiral chute pitch of liquid outlet end; Reach the internal pressurization effect by gradual change Seal cage volume like this.
6. a kind of internal-rotation constant-pressure pump according to claim 1, it is characterized in that: the described pump housing (1) is the outward turning body structure, the pump housing (1) rotation, eccentric shaft (5) is motionless, there is respectively port hole at the two ends of eccentric shaft (5), one port of port hole is communicated with liquid-inlet or liquid outlet, and the another port of port hole is communicated with the pump housing (1) inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102322447A CN101737320B (en) | 2008-11-13 | 2008-11-13 | Method for designing internal-rotation constant-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102322447A CN101737320B (en) | 2008-11-13 | 2008-11-13 | Method for designing internal-rotation constant-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101737320A CN101737320A (en) | 2010-06-16 |
| CN101737320B true CN101737320B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102322447A Expired - Fee Related CN101737320B (en) | 2008-11-13 | 2008-11-13 | Method for designing internal-rotation constant-pressure pump |
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| Country | Link |
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| CN (1) | CN101737320B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087100A (en) * | 2021-12-20 | 2022-02-25 | 王小春 | A spiral supercharged vehicle fuel centrifuge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358721A (en) * | 1940-05-22 | 1944-09-19 | Ljungdahl Oskar Birger | Pump, compressor, motor, or the like |
| US2764101A (en) * | 1952-05-27 | 1956-09-25 | Rand Dev Corp | Helical pump |
| SU1665086A1 (en) * | 1989-07-11 | 1991-07-23 | Чайковское Специальное Конструкторское Бюро | Labyrinth sealed electric pump |
| US6074184A (en) * | 1996-08-20 | 2000-06-13 | Imai; Atsushi | Pump utilizing helical seal |
| CN1884834A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Double-screw mixing transmission pump |
-
2008
- 2008-11-13 CN CN2008102322447A patent/CN101737320B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358721A (en) * | 1940-05-22 | 1944-09-19 | Ljungdahl Oskar Birger | Pump, compressor, motor, or the like |
| US2764101A (en) * | 1952-05-27 | 1956-09-25 | Rand Dev Corp | Helical pump |
| SU1665086A1 (en) * | 1989-07-11 | 1991-07-23 | Чайковское Специальное Конструкторское Бюро | Labyrinth sealed electric pump |
| US6074184A (en) * | 1996-08-20 | 2000-06-13 | Imai; Atsushi | Pump utilizing helical seal |
| CN1884834A (en) * | 2006-07-10 | 2006-12-27 | 西安交通大学 | Double-screw mixing transmission pump |
Non-Patent Citations (1)
| Title |
|---|
| 王春林.迷宫螺旋泵螺旋槽的实验研究.《水泵技术》.2006,(第2期), * |
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| CN101737320A (en) | 2010-06-16 |
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Granted publication date: 20130410 Termination date: 20151113 |