CN203627257U - Oil-immersed screw pump with pressing monitoring and protecting device - Google Patents
Oil-immersed screw pump with pressing monitoring and protecting device Download PDFInfo
- Publication number
- CN203627257U CN203627257U CN201320673051.1U CN201320673051U CN203627257U CN 203627257 U CN203627257 U CN 203627257U CN 201320673051 U CN201320673051 U CN 201320673051U CN 203627257 U CN203627257 U CN 203627257U
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- Prior art keywords
- pump
- screw pump
- motor
- oil
- protecting device
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- 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
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Abstract
The utility model discloses an oil-immersed screw pump with a pressing monitoring and protecting device. The oil-immersed screw pump with the pressing monitoring and protecting device is used for monitoring submergence pressure data of a pump suction inlet, controlling starting and stopping of a motor and protection normal operation of the pump. The pump suction inlet at the lower end of a pump body of the screw pump is connected with a pressure sensor, the lower end of the pressure sensor is connected with a motor, the lower end of a signal cable is connected with a motor, and the upper end of the signal cable is connected with a protection unit in a ground control cabinet. According to the screw pump, it is guaranteed that the pump body and the motor are not damaged, workover treatment can be reduced, the service life of the screw pump is prolonged, and production cost is saved.
Description
Technical field
The utility model relates to a kind of screw submerged pump with pressure monitoring and protective gear, belongs to industrial gas oil oil recovery technique field.
Background technique
In recent years, the application and development of submersible screw pump oil extraction technology is rapid, and it had both been applicable to general oil well production, is applicable to again high viscosity and high containing sand oil well production, without sucker rod, can eliminate the eccentric wear problem of oil pipe bar.Due to the stratum fluid supply capacity deficiency of hyposmosis or the oil reservoir in tail period, oilwell produced fluid amount is low, producing fluid level is dark, submergence is little, uses while diving oily driven screw pump, below producing fluid level drops to Pump Suction Nozzle time, pump is taken out less than liquid, make stator and the rotor dry grinding of pump inside, damage screw pump, even burn out motor.The devices such as existing current protection are ability starting protection after dry grinding only, can not predict in advance protection.
Summary of the invention
The purpose of this utility model is to provide a kind of screw submerged pump with pressure monitoring and protective gear, and it can monitor the pump intake pressure data of Pump Suction Nozzle, controls motor start and stop, protects and self normally moves.
Concrete technology contents of the present utility model is as follows:
The pump intake Bonding pressure sensor of this screw pump pump housing lower end, pressure transducer lower end connects motor, and signal cable lower end connects motor, the protective gear in the control cabinet of connection ground, upper end.
This screw pump can guarantee that the pump housing and motor are not damaged, can reduce workover eration, extends service life of screw pump, saves production cost.
Accompanying drawing explanation
Fig. 1 is the screw submerged pump schematic diagram with pressure monitoring and protective gear.
Embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This screw pump mainly comprises motor 1, pressure transducer 2, signal cable 3, the pump housing 4 and ground control cabinet 5;
The pump intake Bonding pressure sensor 2 of the pump housing 4 lower ends, pressure transducer 2 lower ends connect motor 1, and signal cable 3 lower ends connect motor 1, the protective gear in connection ground, upper end control cabinet 5.
Before use, converse a pump intake pressure protection value according to the minimum injection rate of the pump housing 4 (can be day discharge capacity or hour discharge capacity), by the protective gear in this value input ground control cabinet 5.Aborning, if the force value that pressure transducer 2 is monitored lower than pressure protect value, the protective gear in ground control cabinet 5 is shut down with regard to indication motor 1, thus protection the pump housing 4 and motor 1 not damaged.
Claims (1)
1. a screw submerged pump with pressure monitoring and protective gear, is characterized in that:
The pump intake Bonding pressure sensor (2) of this screw pump pump housing (4) lower end; pressure transducer (2) lower end connects motor (1); signal cable (3) lower end connects motor (1), the protective gear in connection ground, upper end control cabinet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673051.1U CN203627257U (en) | 2013-10-29 | 2013-10-29 | Oil-immersed screw pump with pressing monitoring and protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673051.1U CN203627257U (en) | 2013-10-29 | 2013-10-29 | Oil-immersed screw pump with pressing monitoring and protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627257U true CN203627257U (en) | 2014-06-04 |
Family
ID=50813740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673051.1U Expired - Fee Related CN203627257U (en) | 2013-10-29 | 2013-10-29 | Oil-immersed screw pump with pressing monitoring and protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151005A (en) * | 2016-08-16 | 2016-11-23 | 常州市合达油泵有限公司 | Self-shield oil pump |
| EP3460420A1 (en) * | 2017-09-20 | 2019-03-27 | Lutz Pumpen GmbH | Device for recording the pressure of a medium |
-
2013
- 2013-10-29 CN CN201320673051.1U patent/CN203627257U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151005A (en) * | 2016-08-16 | 2016-11-23 | 常州市合达油泵有限公司 | Self-shield oil pump |
| EP3460420A1 (en) * | 2017-09-20 | 2019-03-27 | Lutz Pumpen GmbH | Device for recording the pressure of a medium |
| US10852174B2 (en) | 2017-09-20 | 2020-12-01 | Lutz Pumpen Gmbh | Device for sensing the pressure of a medium |
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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: 20140604 Termination date: 20211029 |