CN203117212U - On-line cooling tower water turbine rotating speed measuring device - Google Patents
On-line cooling tower water turbine rotating speed measuring device Download PDFInfo
- Publication number
- CN203117212U CN203117212U CN 201220725473 CN201220725473U CN203117212U CN 203117212 U CN203117212 U CN 203117212U CN 201220725473 CN201220725473 CN 201220725473 CN 201220725473 U CN201220725473 U CN 201220725473U CN 203117212 U CN203117212 U CN 203117212U
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- cooling tower
- water turbine
- tower water
- measuring device
- 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
Abstract
The utility model discloses an on-line cooling tower water turbine rotating speed measuring device. The on-line cooling tower water turbine rotating speed measuring device has a digital rotating speed meter, wherein the digital rotating speed meter is connected with a magneto-electric rotating speed sensor through rotating speed frequency electric signal transmission line, a measured shaft of a cooling tower water turbine is equipped with a gear prepared by magnetic conductive materials, and the magneto-electric rotating speed sensor faces a tooth tip direction or a tooth side direction. When the measured shaft rotates, the gear continuously passes through a position near an induction end of the magneto-electric rotating speed sensor to change magnetic flux, and the magneto-electric rotating speed sensor transmits a corresponding frequency electric signal to the digital rotating speed meter, and thereby continuous on-line monitoring on a rotating speed of the cooling tower water turbine is realized.
Description
Technical field
The utility model belongs to the speed measurement techniques field, is specifically related to the online rotation-speed measuring device of a kind of cooling tower water turbine.
Background technology
The cooling tower water turbine adopts turbocharging water wheels technology, utilize the original recirculated cooling water of cooling tower equipment to promote the blower fan heat radiation, the radiating mode of motor-driven blower fan is used in abolishment in traditional cooling tower, save mechanical deceleration device and motor, thereby realize the new energy saving and environment friendly cooling tower of " zero " power consumption.But after motor and speed reducer was removed, the rotating speed of the hydraulic turbine was not easy accurate assurance, and operating personnel are very big by inlet valve control rotational speed of water turbine difficulty, the excessive risk that causes the fan leaf to fracture easily of rotating speed.Measure rotational speed of water turbine at present and adopt hand-held infrared ray rotational speed meters to measure rotating speed usually, but hand-held infrared ray rotation-speed measuring device can not be realized continuous on-line monitoring.
Summary of the invention
The purpose of this utility model is, at the deficiencies in the prior art, provides a kind of online rotation-speed measuring device of cooling tower water turbine that can realize continuous on-line monitoring.
The technical solution of the utility model is as follows: the online rotation-speed measuring device of a kind of cooling tower water turbine, it is characterized in that: have digital revmeter, digital revmeter is connected with magnetoelectric tachometric transducer by the speed-frequency electrical signal transmission line, at cooling tower water turbine measured axis the gear that permeability magnetic material is made is installed, described magnetoelectric tachometric transducer is towards tooth top direction or flank direction.
The distance of described magnetoelectric tachometric transducer and tooth top direction or flank direction is 1mm ± 0.1mm.
The beneficial effects of the utility model: owing at cooling tower water turbine measured axis the gear that permeability magnetic material is made is installed, magnetoelectric tachometric transducer is towards tooth top direction or flank direction simultaneously, when measured axis rotates, gear top or gear side are passed through near the magnetic speed probe induction end continuously, magnetic flux is changed, and magnetic sensor is transferred to digital revmeter with corresponding electrical signal of the frequency.As long as the cooling tower water turbine rotates, magnetic sensor can be transferred to digital revmeter with electrical signal of the frequency synchronously, has realized the continuous on-line monitoring to the cooling tower rotational speed of water turbine thus.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to Fig. 1, the online rotation-speed measuring device of a kind of cooling tower water turbine of the utility model, have digital revmeter 1, digital revmeter 1 is connected with magnetoelectric tachometric transducer 3 by speed-frequency electrical signal transmission line 2, at cooling tower water turbine measured axis 5 gear 4 that permeability magnetic material is made is installed, magnetoelectric tachometric transducer 3 is arranged on the fixed support 6, towards the flank direction of gear 4, the distance of magnetoelectric tachometric transducer and tooth top direction or flank direction is 1mm ± 0.1mm.
When measured axis rotates, the gear top is continuously through near the magnetic speed probe induction end, magnetic flux is changed, and magnetic sensor is transferred to digital revmeter with corresponding electrical signal of the frequency, has realized the continuous on-line monitoring to the cooling tower rotational speed of water turbine thus.
Claims (2)
1. online rotation-speed measuring device of cooling tower water turbine, it is characterized in that: have digital revmeter, digital revmeter is connected with magnetoelectric tachometric transducer by the speed-frequency electrical signal transmission line, at cooling tower water turbine measured axis the gear that permeability magnetic material is made is installed, described magnetoelectric tachometric transducer is towards tooth top direction or flank direction.
2. according to the online rotation-speed measuring device of a kind of cooling tower water turbine, it is characterized in that: the distance of described magnetoelectric tachometric transducer and tooth top direction or flank direction is 1mm ± 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725473 CN203117212U (en) | 2012-12-26 | 2012-12-26 | On-line cooling tower water turbine rotating speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725473 CN203117212U (en) | 2012-12-26 | 2012-12-26 | On-line cooling tower water turbine rotating speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203117212U true CN203117212U (en) | 2013-08-07 |
Family
ID=48897547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725473 Expired - Fee Related CN203117212U (en) | 2012-12-26 | 2012-12-26 | On-line cooling tower water turbine rotating speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203117212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606547A (en) * | 2018-09-25 | 2019-12-24 | 青海洁神环境能源产业有限公司 | Rotating speed monitoring system for rotating body assembly of biological rotating disc reactor |
-
2012
- 2012-12-26 CN CN 201220725473 patent/CN203117212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606547A (en) * | 2018-09-25 | 2019-12-24 | 青海洁神环境能源产业有限公司 | Rotating speed monitoring system for rotating body assembly of biological rotating disc reactor |
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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: 20130807 Termination date: 20211226 |