CN2296533Y - Water pump rotating speed measuring and reverse protector - Google Patents
Water pump rotating speed measuring and reverse protector Download PDFInfo
- Publication number
- CN2296533Y CN2296533Y CN 97205954 CN97205954U CN2296533Y CN 2296533 Y CN2296533 Y CN 2296533Y CN 97205954 CN97205954 CN 97205954 CN 97205954 U CN97205954 U CN 97205954U CN 2296533 Y CN2296533 Y CN 2296533Y
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- CN
- China
- Prior art keywords
- speed
- random character
- sensor
- rotating speed
- water pump
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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 provides a water pump rotating speed measuring and reverse protector, which is composed of random character gear wheels, a sensor and an intelligent speed steering detector, wherein, the random character gear wheel is fixed on a water pump shaft; the sensor is fixed on the outer circle of the random character gear wheel in a non-contact way; the sensor is connected with the intelligent speed steering detector by conducting wires. The utility model has the characteristics of reasonable design, simple structure, easy manufacturing, high safety, convenient operation, etc.
Description
The utility model relates to a kind of feed pump utility appliance, and specifically a kind of pump rotary speed is measured and reverse rotation protector.
Steam boiler is constantly exported high pressure steam and is sent electric energy for the turbogenerator rotation in the generating plant, but steam boiler will constantly pump into the evaporation water by feed pump, so the feed pump in the power plant is exactly the heart of power plant.Because the feed pump in the power plant is directly to the steam boiler feedwater of joining; so feed pump needs discontinuous operation under high pressure; and the rotating speed of feed pump will be stablized; in actual production; sometimes the stop valve in the supply line can break down; feed pump is compeled counter-rotating and water pump is damaged by the pressure of steam boiler; in the prior art; the power plant engineering personnel can only add the measure speed gears of a tooth pitch equalization by the axle head at feed pump; with the untouchable speed conditions that is fixed on gear surface with the mensuration feed pump of a Magnetic Sensor; the electric impulse signal that Magnetic Sensor sent is measured by tachometer gage; whether this speed detector can only detect the rotating speed of feed pump and can not detect feed pump and reverse; also there is not at present good pick-up unit can detect speed of feedwater simultaneously and turn to, feed pump is detected protection.
The purpose of this utility model provides a kind of rotating speed that can detect feed pump, can detect the rotation direction of feed pump again, and sends warning and control pump rotary speed mensuration and the reverse rotation protector that output prevents that feed pump from damaging.
The purpose of this utility model realizes in the following manner, the measure speed gears that adding of prior art is located at the feed pump shaft end changes the random character gear by the many groups of direction finding tooth groups that test the speed of the different in width facewidth, Magnetic Sensor uses eddy current sensor, velocity metre is replaced as intelligent rotating speed steering evaluator with industrial one-chip computer, like this, the measured pulse signal of sensor is not single tach signal just, but exports one group of group different sets of signals of forward or reverse clocklike.When feed pump just changes, measured positive veer and the tach signal of intelligence rotating speed steering evaluator is normal, feed pump power control loop operate as normal, as once the feed pump counter-rotating takes place, reverse directions that the rotating speed steering evaluator is measured and tach signal are undesired, intelligence rotating speed steering evaluator sends at once reports to the police and corresponding control output, avoids causing heavy losses.
Accompanying drawing 1 measure for pump rotary speed and the rotating speed steering characteristic gear of reverse rotation protector face structural representation;
Accompanying drawing 2 is the side-looking structural representation of the rotating speed steering characteristic gear of pump rotary speed mensuration and reverse rotation protector;
Accompanying drawing 3 is the structural representation of installing and using of pump rotary speed mensuration and reverse rotation protector.
With reference to Figure of description pump rotary speed of the present utility model is measured and reverse rotation protector do with Under explain.
Pump rotary speed of the present utility model is measured and reverse rotation protector, and its structure is by stochastic behaviour Gear 1, sensor 3 and intelligent speed steering evaluator 5 consist of, and stochastic behaviour gear 1 is fixed on water On the pump shaft 2, sensor 3 is positioned on the cylindrical of stochastic behaviour gear 1, but does not contact, sensor 3 by Lead 4 is connected with intelligent rotating speed steering evaluator 5.
The direction finding tooth group of being made up of the direction finding tooth 6 that tests the speed that has different crowns, tooth root width more than three that tests the speed is located on random character gear 1 cylindrical, and the direction finding tooth group number that tests the speed set on random character gear 1 cylindrical is one or more groups, is preferably four groups.
Embodiment:
Pump rotary speed of the present utility model measure and its processing and fabricating of reverse rotation protector very simple and convenient, processing shown in the by specification accompanying drawing, install and use and get final product.Rotating speed steering characteristic gear processes with carbon steel or smooth bar, and intelligent rotating speed steering evaluator is made with industrial one-chip computer.
Install and use also easily, rotating speed steering characteristic gear is installed on the position of original measure speed gears, one-chip computer is met sb. at the airport mutually by the power control loop of drive unit and feed pump can.In use, as once the feed pump counter-rotating takes place, reverse directions that intelligent rotating speed steering evaluator is measured and rate signal are undesired, and intelligent rotating speed steering evaluator sends at once reports to the police and corresponding control output avoids causing heavy losses.
Pump rotary speed mensuration of the present utility model and reverse rotation protector are compared with prior art, have reasonable in design, simple in structure, be easy to processing, characteristics such as safe and reliable, easy to operate, thereby, have good value for applications.
Except that the described technical characterictic of instructions, be the known technology of those skilled in the art.
Claims (2)
1. pump rotary speed is measured and reverse rotation protector; comprise random character gear, sensor and intelligent speed steering evaluator; it is characterized in that the random character gear is fixed on the pump shaft; sensor is positioned on the cylindrical of random character gear; but do not contact, sensor is connected with intelligent rotating speed steering evaluator by lead.
2. pump rotary speed according to claim 1 is measured and reverse rotation protector; it is characterized in that being located on the random character top circle by the direction finding tooth group that tests the speed that the direction finding tooth that tests the speed that has different crowns, tooth root width more than three is formed; the direction finding tooth group number that tests the speed on the random character top circle is one or more groups, is preferably four groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205954 CN2296533Y (en) | 1997-01-31 | 1997-01-31 | Water pump rotating speed measuring and reverse protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205954 CN2296533Y (en) | 1997-01-31 | 1997-01-31 | Water pump rotating speed measuring and reverse protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296533Y true CN2296533Y (en) | 1998-11-04 |
Family
ID=33926066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205954 Expired - Fee Related CN2296533Y (en) | 1997-01-31 | 1997-01-31 | Water pump rotating speed measuring and reverse protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296533Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487599A (en) * | 2013-08-20 | 2014-01-01 | 中联重科股份有限公司 | Mixer truck monitoring system and method and mixer truck |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN108761136A (en) * | 2018-08-31 | 2018-11-06 | 仪凤机电（嘉兴）检测技术服务有限公司 | A kind of coolant pump rotational speed monitor system testing calibration device and its testing calibration method |
-
1997
- 1997-01-31 CN CN 97205954 patent/CN2296533Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487599A (en) * | 2013-08-20 | 2014-01-01 | 中联重科股份有限公司 | Mixer truck monitoring system and method and mixer truck |
| CN104931719A (en) * | 2014-03-20 | 2015-09-23 | 浙江海峰制鞋设备有限公司 | Speed measurement and metering device, mixing system using the device and mixing method |
| CN104931719B (en) * | 2014-03-20 | 2018-06-08 | 浙江海峰制鞋设备有限公司 | A kind of mixed method of the hybrid system of multigroup material |
| CN108761136A (en) * | 2018-08-31 | 2018-11-06 | 仪凤机电（嘉兴）检测技术服务有限公司 | A kind of coolant pump rotational speed monitor system testing calibration device and its testing calibration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |