CN203009292U - Energy-saving starting drive of submersible screw pump unit - Google Patents
Energy-saving starting drive of submersible screw pump unit Download PDFInfo
- Publication number
- CN203009292U CN203009292U CN 201220353180 CN201220353180U CN203009292U CN 203009292 U CN203009292 U CN 203009292U CN 201220353180 CN201220353180 CN 201220353180 CN 201220353180 U CN201220353180 U CN 201220353180U CN 203009292 U CN203009292 U CN 203009292U
- Authority
- CN
- China
- Prior art keywords
- rotor
- pump unit
- prime mover
- screw
- submersible
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An energy-saving starting device of a submersible screw pump unit is composed of an outer casing and a rotor capable of freely rotating in the outer casing; the rotor comprises an active component and a passive component; the active component and the passive component compose a screw-pair; a starting device is connected in series between a motive unit of the submersible screw pump unit and a screw oil pump unit; two side of the outer casing are respectively connected with an outer casing of the motive unit of the submersible screw pump unit and an outer casing of the screw oil pump unit; and the active component is connected with an output shaft of the motive unit of the submersible screw pump unit, and the passive component is connected with the rotor of the screw oil pump unit. In a starting initial stage, the motive unit of the submersible screw pump unit in the utility model, firstly generates axial displacement between the rotor and a stator of the submersible screw pump unit, then starts the screw oil pump in condition of basic existence of static resistance moment without increasing capacity of the motive unit, thereby raising operation efficiency of the submersible screw pump unit, and fully performing an energy saving advantage of the submersible screw pump unit.
Description
Technical field
The utility model relates to the submersible screw pump assembly, specifically, relates to a kind of energy conservation starting device of submersible screw pump assembly.
Background technique
In the prior art, the operational efficiency of submersible screw pump assembly should be taken out apparently higher than bar traditional oil extraction equipment such as screw pump or oil-submersible centrifugal pump, power demand to prime mover group in the running of submersible screw pump assembly is very little, therefore can save mass energy; But due to the repose resistance square between the stator and rotor of progressive cavity pump of configuration apparently higher than the running resistance square, cause progressive cavity pump group difficulty in starting, in order to overcome screw submerged pump unit starting difficulty, prior art generally adopts prime mover group that is equipped with larger capacity, like this, although only need to be equipped with prime mover group of small capacity during the screw submerged pump unit operation, but in order normally to start prime mover group of having to be equipped with larger capacity, thereby waste a large amount of electric energy, seriously influenced the performance of electric oil submerged screw pump unit power savings advantages; Hindered the expansion of screw submerged pump application.
The model utility content
For above-mentioned deficiency of the prior art, but it is a kind of at the repose resistance square between decrease progressive cavity pump stator and rotor at the beginning of startup that the utility model provides, prime mover pool-size of submersible screw pump assembly is rationally reduced, thereby the raising unit operation efficiency, a kind of submersible screw pump assembly energy conservation starting device of reduction energy consumption.
Technical solution adopted in the utility model is:
A kind of energy conservation starting device of submersible screw pump assembly, comprise: prime mover group that shell is set, the progressive cavity pump group of shell is set, the rotor of progressive cavity pump is driven by the output shaft of prime mover group, be serially connected with the energy conservation starting device between prime mover group and progressive cavity pump group, the energy conservation starting device comprises the rotor that the sense of rotation of shell and interior rotor along prime mover group output shaft and progressive cavity pump thereof rotates freely.
Rotor in described energy conservation starting crust of the device is made of active member and passive device.
Described active member and passive device formation have the screw pair of fixed journey system.
Described active member is connected with the output shaft of prime mover group, and passive device is connected with the rotor of progressive cavity pump.
Described starting drive shell is hollow cavity, and two ends are connected with the shell of prime mover group and the shell of progressive cavity pump unit respectively.
The length change in travel range that the screw pair with fixed journey system that described active member and passive device consist of produces makes the axial displacement that produces between the progressive cavity pump stator and rotor be enough to reduce existing repose resistance square between progressive cavity pump stator and rotor.
The beneficial effect of the relative prior art of the utility model:
The utility model is serially connected with between prime mover group and progressive cavity pump group, when prime mover group begins to start, the power supply that provides by oil-submersible cable can be controlled the sense of rotation of prime mover group output shaft, make the sense of rotation of prime mover group output shaft comply with the direction that starter rotor helical-screw pair unscrews trend, prime mover group initial start stage, prime mover group output shaft only drive the active member rotation of starting drive rotor; Be fixed on due to passive device on the rotor of the very large progressive cavity pump of repose resistance square, therefore, can only drive the rotor generation axial motion of progressive cavity pump, make between the rotor of progressive cavity pump and stator axial displacement occurs, increase along with axial displacement, thereby progressively reduced the rotor of progressive cavity pump and the repose resistance between its stator, prime mover group just needn't drive the rotor of the very large progressive cavity pump of repose resistance square when starting; Finish until the secondary stroke of rotor helical-screw---after main, passive device screws, restart the progressive cavity pump rotor, repose resistance square between the stator and rotor of progressive cavity pump greatly reduces at this moment, so just be no longer necessary for prime mover pool-size that overcomes difficulty in starting and strengthen the submersible screw pump assembly, thereby can improve the screw submerged pump unit operation efficiency, its power savings advantages is given full play to.
Description of drawings
Fig. 1 is the utility model vertical profile structural representation.
Critical piece symbol description in accompanying drawing:
In figure:
10, prime mover group of submersible screw pump assembly
11, the output shaft of prime mover group
12, the shell of prime mover group
13, the oil-submersible cable of submersible screw pump assembly
20, energy conservation starting device
21, the rotor of starting drive
211, the active member of rotor
212, the passive device of rotor
22, the shell of starting drive
30, the progressive cavity pump group of submersible screw pump assembly
31, the rotor of progressive cavity pump
32, the stator of progressive cavity pump
321, progressive cavity pump shell.
Embodiment
Referring to drawings and Examples, the utility model is described in detail:
Accompanying drawing 1 as can be known, a kind of energy conservation starting device of submersible screw pump assembly, comprise: prime mover group 10 that the submersible screw pump assembly of shell 12 is set, the progressive cavity pump group 30 of the submersible screw pump assembly of shell 321 is set, the rotor 31 of progressive cavity pump is connected with the output shaft 11 of prime mover group, be serially connected with energy conservation starting device 20 between prime mover group 10 and progressive cavity pump group 30, energy conservation starting device 20 comprises shell 22 and the interior rotor 21 that rotates freely along the sense of rotation of prime mover group output shaft 11 and the rotor 31 of progressive cavity pump thereof; Rotor 21 in described energy conservation starting crust of the device is made of active member 211 and passive device 212; Described active member 211 and passive device 212 formations have the screw pair of fixed journey system; Described active member 211 is connected with the output shaft 11 of prime mover group, and passive device 212 is connected with the rotor 31 of progressive cavity pump; Described starting drive shell 22 is hollow cavity, and two ends are connected with progressive cavity pump unit casing 321 with the shell 12 of prime mover group respectively; The length change that the screw pair with fixed journey system that described active member 211 and passive device 212 consist of produces makes the displacement that produces between the progressive cavity pump stator and rotor be enough to reduce the repose resistance square that produces between progressive cavity pump stator 32 and rotor 31.
Fig. 1 is the first embodiment of the present utility model, and active member 211 is for consisting of leading screw or the screw rod of screw pair, and passive device 212 is for consisting of the nut of screw pair.The second embodiment of the present utility model: active member is nut, and passive device is leading screw or screw rod.The second embodiment is identical with the first embodiment's working principle, below launch explanation around the first embodiment, when leading screw or screw rod are connected with the output shaft 11 of prime mover group as active member, the nut of passive device screw pair will move up and down along leading screw or screw axis, and the axial length of screw pair is changed in the fixed journey system scope; In like manner, when the nut of screw pair is connected with the output shaft 11 of prime mover group as active member, nut is relatively fixing along axial location, and leading screw or screw rod move up and down along axis.
The energy conservation starting device 20 of submersible screw pump assembly is serially connected with between prime mover group 10 and progressive cavity pump group 30 of submersible screw pump assembly, when prime mover group 10 of submersible screw pump assembly begins to start, the power supply that the oil-submersible cable 13 of control system by the submersible screw pump assembly provides can be controlled the sense of rotation of prime mover group output shaft 11, makes the sense of rotation of prime mover group output shaft 11 comply with the direction that starter rotor 21 screw pairs unscrew trend.The sense of rotation of so-called prime mover group output shaft 11 is complied with the direction that screw pair that energy conservation starting device rotor 21 consists of unscrews trend, that is: the rotation initial time of prime mover group output shaft, if passive device 212 is in the top limit position of the screw pair of active member 211 and passive device 212 formations, the sense of rotation of prime mover group output shaft 11 will make passive device 212 move downwards so; The rotation initial time of prime mover group output shaft, if passive device 212 is in the below limit position of the screw pair of active member 211 and passive device 212 formations, the sense of rotation of prime mover group output shaft 11 makes passive device 212 be moved upward so.
Prime mover group initial start stage, prime mover group output shaft only drive the active member rotation of starting drive rotor; Be fixed on due to passive device on the rotor of the very large progressive cavity pump of repose resistance square, therefore, can only drive the rotor generation axial motion of progressive cavity pump under the driving of screw pair, make between the rotor of progressive cavity pump and stator axial displacement occurs, increase along with axial displacement, thereby progressively reduced the rotor of progressive cavity pump and the repose resistance between its stator, like this, prime mover group just needn't drive the rotor of the very large progressive cavity pump of repose resistance square when starting; Finish until starting drive screw pair stroke---after main, passive device screws, restart the progressive cavity pump rotor, substantially there is not the repose resistance square between the stator and rotor of progressive cavity pump at this moment, so just be no longer necessary for prime mover pool-size that overcomes difficulty in starting and strengthen the submersible screw pump assembly, thereby can improve the screw submerged pump unit operation efficiency, its power savings advantages is given full play to.
The energy conservation starting device of the utility model submersible screw pump assembly is to be serially connected with between prime mover group and progressive cavity pump of submersible screw pump assembly; But not limited by relative position or mounting type between prime mover group and progressive cavity pump group, for example: progressive cavity pump can be above prime mover group, also can be below prime mover group; Unit can be that vertical means can be also level or arbitrarily angled device; Can be that submergence type can be also the bar odd test, the active member of this starting drive rotor be connected with prime mover group output shaft, and passive device is connected with the rotor of progressive cavity pump, can reach the purpose that solves difficulty in starting.
The energy conservation starting device of the utility model submersible screw pump assembly is applicable to the other types single screw pump unit because of the large difficulty in starting of repose resistance square too except being applicable to the submersible screw pump assembly, such as screw rod ground transfer pump etc.
the above, it is only preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model with preferred embodiment openly as above, yet, be not to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (5)
1. the energy conservation starting device of a submersible screw pump assembly, comprise: prime mover group that shell is set, the progressive cavity pump group of shell is set, the rotor of progressive cavity pump is driven by the output shaft of prime mover group, it is characterized in that: be serially connected with the energy conservation starting device between prime mover group and progressive cavity pump group, the energy conservation starting device comprises the rotor that the sense of rotation of shell and interior rotor along prime mover group output shaft and progressive cavity pump thereof rotates freely.
2. the energy conservation starting device of submersible screw pump assembly according to claim 1, it is characterized in that: the rotor in described energy conservation starting crust of the device is made of active member and passive device.
3. the energy conservation starting device of submersible screw pump assembly according to claim 2 is characterized in that: described active member and passive device consist of and have the screw pair of fixed journey system.
4. the energy conservation starting device of submersible screw pump assembly according to claim 2, it is characterized in that: described active member is connected with the output shaft of prime mover group, and passive device is connected with the rotor of progressive cavity pump.
5. the energy conservation starting device of submersible screw pump assembly according to claim 1, it is characterized in that: described starting drive shell is hollow cavity, and two ends are connected with the shell of prime mover group and the shell of progressive cavity pump unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353180 CN203009292U (en) | 2012-07-20 | 2012-07-20 | Energy-saving starting drive of submersible screw pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353180 CN203009292U (en) | 2012-07-20 | 2012-07-20 | Energy-saving starting drive of submersible screw pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009292U true CN203009292U (en) | 2013-06-19 |
Family
ID=48600890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353180 Expired - Fee Related CN203009292U (en) | 2012-07-20 | 2012-07-20 | Energy-saving starting drive of submersible screw pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734155A (en) * | 2012-07-20 | 2012-10-17 | 赵锡寰 | Energy-saving start device of submersible screw pump unit |
-
2012
- 2012-07-20 CN CN 201220353180 patent/CN203009292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734155A (en) * | 2012-07-20 | 2012-10-17 | 赵锡寰 | Energy-saving start device of submersible screw pump unit |
| CN102734155B (en) * | 2012-07-20 | 2014-12-03 | 赵锡寰 | Energy-saving start device of submersible screw pump unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201461429U (en) | Novel submersible direct drive screw pump | |
| CN201753663U (en) | Wind generator using centrifugal device for assisting starting | |
| CN102734155B (en) | Energy-saving start device of submersible screw pump unit | |
| CN102868270B (en) | Double-stator electrically-driven/power-generating joint operation device with wind turbine | |
| CN203009292U (en) | Energy-saving starting drive of submersible screw pump unit | |
| CN105736403A (en) | Water-immersed submerged pump with permanent magnet synchronous motor | |
| CN201246314Y (en) | Direct connecting type high speed centrifugal air blower | |
| CN101969256B (en) | Submersible direct-drive permanent magnet synchronous motor | |
| CN201303284Y (en) | Flameproof direct-drive permanent-magnet synchronous motor | |
| CN201763623U (en) | Self-priming water driven pump | |
| CN203734414U (en) | Self-adaption oil pumping unit speed reducer direct-drive discoid rare earth permanent magnet motor | |
| CN102748197B (en) | Hydro-electric generating set | |
| CN203398923U (en) | Special energy-saving variable-frequency and speed-regulating motor for oil pumping machine | |
| CN207920786U (en) | A kind of straight drive low speed plunger type water injection pump system | |
| CN204271765U (en) | A kind of high merit matter is than submersible screw pump direct-drive permanent-magnet synchronous motor | |
| CN202737660U (en) | Direct drive device of switched reluctance motor special for screw pump | |
| CN206159006U (en) | Screw pump oil production device | |
| CN204408148U (en) | Asynchronous motor | |
| CN203589979U (en) | Double-speed swimming pool water pump motor | |
| CN202867078U (en) | Hydro electric generating set | |
| CN203660760U (en) | Multi-pole low-speed large-torque oil-pumping screw pump motor | |
| CN201766444U (en) | Screw pump motor | |
| CN204633655U (en) | A kind of energy-saving self-priming fuel pump | |
| CN201953626U (en) | Surface driving unit directly driven by screw pump | |
| CN203669836U (en) | Energy-saving device for pumping unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160720 |