CN203906016U - Steam turbine with control and protection device - Google Patents
Steam turbine with control and protection device Download PDFInfo
- Publication number
- CN203906016U CN203906016U CN201420253483.1U CN201420253483U CN203906016U CN 203906016 U CN203906016 U CN 203906016U CN 201420253483 U CN201420253483 U CN 201420253483U CN 203906016 U CN203906016 U CN 203906016U
- Authority
- CN
- China
- Prior art keywords
- steam turbine
- programmable logic
- logic controller
- control
- rotor
- 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 - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Turbines (AREA)
Abstract
The utility model relates to a steam turbine with a control and protection device. The steam turbine comprises a trigger wheel fixedly connected with a rotor of the steam turbine and a programmable logic controller for controlling the speed of the rotor. The steam turbine further comprises three eddy current sensors and a bearing shell, the trigger wheel is accommodated in the bearing shell, and the eddy current sensors are mounted on the bearing shell. The eddy current sensors are arranged adjacent to the trigger wheel and radially face to the trigger wheel, and the trigger wheel is connected with the programmable logic controller. The steam turbine is simple in structure and low in cost.
Description
Technical field
The utility model relates generally to steam turbine, particularly has the steam turbine of control and protection device.
Background technique
The rotating machinerys such as such as gas turbine, steam turbine, water turbine, pump and motor have the rotor of rotation at a predetermined velocity.In order to monitor the angular velocity of described rotor, the triggering wheel of contiguous described rotor arranges sensor.Described sensor produces the signal of the position, angle of the described rotor of instruction.
At present, extensively Hall transducer is used for monitoring rotor, is especially used as the sensor of the angular velocity of the rotor of monitoring steam turbine.In the application of Hall transducer, must use at least five Hall transducers, three in these sensors for the protection of object, and all the other two for controlling object.Due to Hall transducer in the time breaking down and the reading that is 1 o'clock in the speed of rotating machinery be identical, therefore must by three Hall transducers for the protection of and can not by these Hall transducers simultaneously for control.But sensor is more expensive, and the sensor using is more, and the structure of steam turbine is more complicated.Therefore, need a kind of simple in structure and lower-cost steam turbine that utilizes sensor.
Model utility content
The purpose of this utility model is to provide a kind of simple in structure and lower-cost steam turbine with control and protection device.The steam turbine with control and protection device of the present utility model comprises the triggering wheel being fixedly connected with the rotor of described steam turbine and a programmable logic controller (PLC) controlling the speed of described rotor.Described steam turbine also comprises three current vortex sensors and a cartridge housing.Described triggering wheel is placed in described cartridge housing and described current vortex sensor is arranged on described cartridge housing.The contiguous described triggering wheel of described current vortex sensor arranges and radially towards described triggering wheel, described triggering wheel is connected with described programmable logic controller (PLC) respectively.
According to an aspect of the present utility model, described steam turbine further comprises three transducers, and described three transducers are connected between described current vortex sensor and described programmable logic controller (PLC).
According on the other hand of the present utility model, described triggering wheel is connected with a coupling.
According to one side more of the present utility model, described steam turbine further comprises an axial sensor, and described axial sensor is arranged on described cartridge housing and axially towards described triggering wheel.
According to another aspect of the present utility model, described steam turbine further comprises an emergency shut-in valve, and described emergency shut-in valve is connected to described programmable logic controller (PLC) to control the flow velocity that enters the steam in described steam turbine.
Three current vortex sensors that adopt the triggering wheel of adjacent rotor to arrange can be realized protection simultaneously and control object, thereby have avoided Hall transducer to distinguish breaking down and problem that speed is zero., sensor is directly installed on specific cartridge housing meanwhile, and then simplifies the structure and reduced cost.
Brief description of the drawings
The following drawings is intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is according to the cross-sectional schematic of the bearing part of the steam turbine with control and protection device of the present utility model;
Fig. 2 is the schematic perspective view of cartridge housing;
Fig. 3 is according to the schematic diagram of the steam turbine with control and protection device of the present utility model.
Reference symbol:
161 cartridge housing 1611,1612,1613 mounting holes
151,152,153 current vortex sensor 154 coupling
155 axial sensor 156 trigger wheel
157 programmable logic controller (PLC) 158 transducers
159 emergency shut-in valve 112 rotors
1 steam turbine
Embodiment
Understand for the technical characteristics to model utility, object and effect have more clearly, now contrast brief description of the drawings embodiment of the present utility model, in each figure, identical label represents identical part.
For making drawing succinct, in each figure, only schematically show the part relevant to the utility model, they do not represent its practical structures as product.In addition, so that drawing is succinctly convenient to understand, in some figure, there are the parts of same structure or function, only schematically illustrated one of them, or only marked one of them.
Fig. 1 and 2 has shown according to the cross-sectional schematic of the bearing part of the steam turbine with control and protection device of the present utility model.Steam turbine comprises a rotor 112.Rotor 112 is being connected to one end of coupling 154 and the other end (not shown) in exhaust nozzle by bearings.The steam turbine with control and protection device of the present utility model comprises be fixedly connected with rotor 112 one triggering wheel 156 as shown in Figure 1 and controls one of speed of steam turbine programmable logic controller (PLC) (PLC) 157 as shown in Figure 3.The steam turbine with control and protection device further comprises three current vortex sensors 151,152,153, and it is adjacent to and triggers wheel 156 settings and be connected with programmable logic controller (PLC) 157 respectively.As shown in Figure 2; the steam turbine with control and protection device comprises and is placed in triggering in cartridge housing 161 wheel 156, and wherein three current vortex sensors 151,152,153 are arranged on three mounting holes 1611,1612,1613 of cartridge housing 161 and radially towards triggering wheel 156.In the utility model, " radially " and " axially " is all for the axis of the rotor of working state tubine.
Steam turbine 1 can further comprise an axial sensor 155, and axial sensor 155 is arranged on cartridge housing 161 and axially towards triggering wheel 156.Axial sensor 155 is connected to vibration system, is not used in tachometric survey.Axial sensor 155 has the axially displaced function of detection rotor 112.The steam turbine with control and protection device further comprises three transducers 158.Three transducers 158 are connected between current vortex sensor 151,152,153 and programmable logic controller (PLC) 157.Transducer 158 is converted to digital signal by the analogue signal being produced by current vortex sensor 151,152,153 and further processes for programmable logic controller (PLC) 157.The steam turbine with control and protection device also can further comprise an emergency shut-in valve 159.Emergency shut-in valve 159 is connected to programmable logic controller (PLC) 157 to control the flow velocity that enters the steam in steam turbine 1.
Three current vortex sensors that adopt the triggering wheel of adjacent rotor to arrange can be realized protection simultaneously and control object, thereby have avoided Hall transducer to distinguish breaking down and problem that speed is zero.Sensor is directly installed on specific cartridge housing simultaneously, further simplifies the structure and reduced cost.
The content of above having described should be regarded as example embodiment of the present utility model.By teaching herein, be appreciated by those skilled in the art that other amendment of the present utility model, and therefore, as long as this type of is revised in true spirit of the present utility model and scope, wish that all this type of is modified in protection domain of the present utility model.
Claims (5)
1. there is the steam turbine of control and protection device; comprise the triggering wheel (156) being fixedly connected with the rotor (112) of described steam turbine (1) and a programmable logic controller (PLC) (157) of controlling the speed of described rotor (112), it is characterized in that:
Described steam turbine (1) also comprises three current vortex sensors (151, 152, 153) and one cartridge housing (161), wherein said triggering wheel (156) is placed in described cartridge housing (161) and described current vortex sensor (151, 152, 153) be arranged on described cartridge housing (161), described current vortex sensor (151, 152, 153) contiguous described triggering wheel (156) arranges and radially takes turns (156) towards described triggering, described triggering wheel (156) is connected with described programmable logic controller (PLC) (157) respectively.
2. steam turbine according to claim 1, it is characterized in that: described steam turbine (1) further comprises three transducers (158), described three transducers (158) are connected between described current vortex sensor (151,152,153) and described programmable logic controller (PLC) (157).
3. steam turbine according to claim 1, is characterized in that: described triggering wheel (156) is connected with a coupling (154).
4. steam turbine according to claim 3, it is characterized in that: described steam turbine (1) further comprises an axial sensor (155), described axial sensor (155) is arranged on described cartridge housing (161) and above and axially takes turns (156) towards described triggering.
5. steam turbine according to claim 4, it is characterized in that: described steam turbine (1) further comprises an emergency shut-in valve (159), described emergency shut-in valve (159) is connected to described programmable logic controller (PLC) (157) to control the flow velocity that enters the steam in described steam turbine (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253483.1U CN203906016U (en) | 2014-05-16 | 2014-05-16 | Steam turbine with control and protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253483.1U CN203906016U (en) | 2014-05-16 | 2014-05-16 | Steam turbine with control and protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906016U true CN203906016U (en) | 2014-10-29 |
Family
ID=51780303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253483.1U Expired - Lifetime CN203906016U (en) | 2014-05-16 | 2014-05-16 | Steam turbine with control and protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906016U (en) |
-
2014
- 2014-05-16 CN CN201420253483.1U patent/CN203906016U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206291915U (en) | A kind of encoder of Hall-type | |
| ES2542105T3 (en) | Device and procedure to determine a blade position and to complete a safety movement | |
| JP6944285B2 (en) | Abnormal cause identification system for devices with rotating members | |
| JP6451084B2 (en) | Measuring device and measuring system using the same | |
| WO2011152914A3 (en) | Determining fan parameters through pressure monitoring | |
| CN201748913U (en) | Engineering machine angle detecting system | |
| CN103921928B (en) | Boats and ships follow-up steering system | |
| CN107742995B (en) | Mounting structure of axial detection piece of magnetic suspension motor rotor | |
| CN203906016U (en) | Steam turbine with control and protection device | |
| CN203201847U (en) | Blower surging measuring device | |
| CN204228735U (en) | Measure the device of motor speed | |
| CN201972847U (en) | Rotating speed monitoring speed of wind power generation system | |
| JP6827346B2 (en) | Axial turbine | |
| CN205593480U (en) | Install novel absolute value transducer on hoist | |
| CN205592326U (en) | Brake end speed increaser | |
| CN202612064U (en) | Fault diagnosis apparatus for water pump | |
| CN204177816U (en) | A kind of digital motor overspeed protective device motor speed detection architecture | |
| CN103575250B (en) | Rotation angle detection equipment, system and method of rotating device and engineering machinery | |
| JP2008096410A (en) | State monitoring technique for rotary machine using electromagnetic phenomenon | |
| CN205193095U (en) | Engineering machinery camshaft, bent axle signal generator | |
| CN107402111A (en) | A kind of pump-storage generator shafting vibration assessment system | |
| CN201698203U (en) | Fault treatment system of centrifugal blower | |
| CN205643376U (en) | Novel motor speed encoder | |
| CN203175627U (en) | Hydraulic recovery gas turbine device | |
| CN204694270U (en) | Universal log sensor debugging rotating trough |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211208 Address after: Munich, Germany Patentee after: Siemens Energy International Address before: Munich, Germany Patentee before: SIEMENS AG |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |