CN208885538U - Thermal power plant's steam turbine open circulating water energy saving of system device - Google Patents
Thermal power plant's steam turbine open circulating water energy saving of system device Download PDFInfo
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- CN208885538U CN208885538U CN201821398801.8U CN201821398801U CN208885538U CN 208885538 U CN208885538 U CN 208885538U CN 201821398801 U CN201821398801 U CN 201821398801U CN 208885538 U CN208885538 U CN 208885538U
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- steam turbine
- permanent
- circulating water
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Abstract
The utility model discloses a kind of thermal power plant's steam turbine open circulating water energy saving of system devices, it further include velocity sensor, DCS dcs, remote controler, control panel, the power output shaft of motor is fixedly connected with one end of the speed adjusting gear in permanent-magnet speed governor, the other end of speed adjusting gear in permanent-magnet speed governor is fixedly connected with the blade rotor of water pump, velocity sensor is mounted on blade rotor, velocity sensor connects DCS dcs by signal wire, sensor pack is placed in recirculated water, sensor pack connects DCS dcs by signal wire, the utility model solves the problems, such as that existing device can not adjust pump rotary speed according to the actual situation, speed regulation device is installed using by the open circulation water system of steam turbine, to improve open circulation pump efficiency, it is unnecessary to save Power consumption, have invest it is small, it is quick, it is not vulnerable, be swift in response, the good advantage of regulating effect.
Description
Technical field
The utility model belongs to power plant steam turbine engineering device technique field.
Background technique
Under normal circumstances, every steam turbine of Thermal Power Enterprises configures two open circulation water pumps to guarantee each heat exchanger of unit: main
Machine and small steam turbine oil cooler, the hydrogen-cooled device of generator, closed circulating water heat exchanger etc. use water.Due to traditional open circulation pump rotary speed
It cannot be adjusted, in unit underload or winter, spring, each heat exchanger opened water side valve door is in throttle operation, and open type is followed
There are larger wastes for ring water pump water supply, when the open circulation water system of traditional steam turbine designs most by oepration at full load when summer
Big water requirement is equipped, at present since unit cannot be run under full capacity for a long time, especially in winter, spring, open circulation water pump
Water supply have larger surplus capacity compared with actual used water amount, to improve open circulation pump efficiency, saving unnecessary power consumption, and mesh
It is preceding on traditional boiled water water circulating pump speed change gear to be newly installed not yet, by adjusting open circulation pump rotary speed meet institute for
The system or device of the actually required water in family occur.
Domestic patent database disclosed some similar generating set condensate pump permanent magnet speed regulation device technologies in recent years
Report:
[application number] ZL201420593761.8, [title] generating set condensate pump permanent magnet speed regulation device, [publication number]
CN204190594U discloses a kind of generating set condensate pump permanent magnet speed regulation device, is mounted between motor and condensate pump,
It is made of three parts, first is that the magnetizer (overall rotor) connected with motor, second is that the permanent magnet (disk turn with load connection
Son), certain the air gap is equipped between the magnetizer and permanent magnet, third is that an actuator, when load changes
When, motor speed is basically unchanged, after the variation that actuator is connected to a control signal (such as pressure, flow, liquid level etc.),
Signal is identified and is converted, the size of the air gap between magnetizer and permanent magnet is adjusted by actuator, passes through load
The control of load output speed is realized in the adjusting of torque, to change output power of motor size, but since the device is directly used
Actuator handles the signal that sensor is sent, and is easy failure.
Summary of the invention
The utility model provide it is a kind of it is not vulnerable, be swift in response, thermal power plant's steam turbine open circulating water that regulating effect is good
Energy saving of system device solves the problems, such as that existing device can not adjust pump rotary speed according to the actual situation.
The utility model provides a kind of thermal power plant's steam turbine open circulating water energy saving of system device, including for providing torque
Motor provides the water pump of power for recirculated water, further includes velocity sensor, DCS distribution for the permanent-magnet speed governor of speed regulation
Control system, remote controler, control panel, the power output shaft of motor are fixedly connected with one of the speed adjusting gear in permanent-magnet speed governor
It holds, the other end of the speed adjusting gear in permanent-magnet speed governor is fixedly connected with the blade rotor of water pump, and velocity sensor is mounted on blade
In shaft, velocity sensor connects DCS dcs by signal wire, and sensor pack is placed in recirculated water,
Sensor pack connects DCS dcs by signal wire, and remote controler is emitted and received by built-in communication module
Electromagnetic wave wireless signal connects DCS dcs, and control panel connects DCS dcs by signal wire,
DCS dcs connects the actuator in permanent-magnet speed governor by signal wire.
The sensor pack includes for measuring the flow sensor of circulating water flow, for measuring cyclic hydrostatic pressure
The pressure sensor of power.
The utility model, which is used, installs speed regulation device for the open circulation water system of steam turbine, by adjusting open circulation water pump
Revolving speed meets institute for the actually required water of user, to improve open circulation pump efficiency, saves unnecessary power consumption,
It does not influence to reach good energy-saving effect in the case of unit safety operation, solves open circulation water pump in any load of unit
Needed with water, when avoiding low load or unit winter, spring operation, there are larger differences to lead with actual used water amount for water supply
The phenomenon that unnecessary power consumption caused, is suitable for thermal power plant's steam turbine open circulating water systems technology and is transformed, solves existing device
The problem of pump rotary speed can not be adjusted according to the actual situation, has investment small, quick, not vulnerable, is swift in response, and adjusts effect
The good advantage of fruit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein: 1-motor, 11-power output shafts, 2-speed adjusting gears, 3-permanent-magnet speed governors, 4-velocity sensors,
5-water pumps, 51-blade rotors, 6-DCS dcs, 7-remote controlers, 8-control panels, 9-actuators,
10-sensor packs.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figure 1, the utility model mainly includes providing power for recirculated water for providing the motor 1 of torque
Water pump 5 further includes velocity sensor 4, DCS dcs 6, remote controler 7, control for the permanent-magnet speed governor 3 of speed regulation
Panel 8, the power output shaft 11 of motor 1 are fixedly connected with one end of the speed adjusting gear 2 in permanent-magnet speed governor 3, in permanent-magnet speed governor 3
The other end of speed adjusting gear 2 be fixedly connected with the blade rotor 51 of water pump 5, velocity sensor 4 is mounted on blade rotor 51, speed
It spends sensor 4 and DCS dcs 6 is connected by signal wire, sensor pack 10 is placed in recirculated water, sensor
Sub-assembly 10 connects DCS dcs 6 by signal wire, and remote controler 7 emits by built-in communication module and receive electricity
Magnetic wave wireless signal connects DCS dcs 6, and control panel 8 connects DCS dcs 6 by signal wire,
DCS dcs 6 connects the actuator 9 in permanent-magnet speed governor 3 by signal wire, and sensor pack 10 includes being used for
Measure flow sensor, the pressure sensor for measuring circulating water pressure of circulating water flow.
When work, motor 1 keeps certain revolving speed constant, and the power output shaft 11 of motor 1 passes through the tune in permanent-magnet speed governor 3
Fast mechanism 2 drives the blade rotor 51 of water pump 5 to rotate, the stream for the recirculated water that sensor pack 10 will test by signal wire
Amount and pressure data pass to DCS dcs 6, and sensor pack 10 turns blade rotor 51 by signal wire
Fast data pass to DCS dcs 6, built-in communication module transmitting and receiving electricity of the operator by remote controler 7
Magnetic wave wireless signal connection control DCS dcs 6, or control DCS is connected by signal wire using control panel 8
Dcs 6, the setting value or the flow setting value of setting recirculated water, pressure for setting the revolving speed of blade rotor 51 are set
Definite value, DCS dcs 6 connect the actuator 9 in control permanent-magnet speed governor 3 by signal wire, and the adjustment of actuator 9 is adjusted
Fast mechanism 2, to change the revolving speed of blade rotor 51.
Claims (2)
1. a kind of thermal power plant's steam turbine open circulating water energy saving of system device, including the motor (1) for providing torque, for recycling
Water provide power water pump (5), the permanent-magnet speed governor (3) for speed regulation, it is characterised in that: further include velocity sensor (4),
The power output shaft (11) of DCS dcs (6), remote controler (7), control panel (8), motor (1) is fixedly connected forever
The other end of one end of the speed adjusting gear (2) in magnetic governor (3), the speed adjusting gear (2) in permanent-magnet speed governor (3) is fixedly connected
The blade rotor (51) of water pump (5), velocity sensor (4) are mounted on blade rotor (51), and velocity sensor (4) passes through signal
Line connects DCS dcs (6), and sensor pack (10) is placed in recirculated water, sensor pack (10) warp
Cross signal wire connection DCS dcs (6), remote controler (7) emitted by built-in communication module and received electromagnetic wave without
Line signal connects DCS dcs (6), and control panel (8) connects DCS dcs (6) by signal wire,
DCS dcs (6) passes through the actuator (9) in signal wire connection permanent-magnet speed governor (3).
2. thermal power plant's steam turbine open circulating water energy saving of system device as described in claim 1, it is characterised in that: the sensing
Device sub-assembly (10) include for measuring the flow sensor of circulating water flow, the pressure sensing for measuring circulating water pressure
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821398801.8U CN208885538U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant's steam turbine open circulating water energy saving of system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821398801.8U CN208885538U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant's steam turbine open circulating water energy saving of system device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208885538U true CN208885538U (en) | 2019-05-21 |
Family
ID=66510332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821398801.8U Expired - Fee Related CN208885538U (en) | 2018-08-29 | 2018-08-29 | Thermal power plant's steam turbine open circulating water energy saving of system device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208885538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060564A (en) * | 2019-05-24 | 2019-07-26 | 安徽沃弗电力科技有限公司 | A kind of air-cooled governor circulation demo system |
| CN114251257A (en) * | 2022-03-02 | 2022-03-29 | 天津国能津能滨海热电有限公司 | Method and system for controlling rotating speed of permanent magnet condensate pump, electronic equipment and storage medium |
-
2018
- 2018-08-29 CN CN201821398801.8U patent/CN208885538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110060564A (en) * | 2019-05-24 | 2019-07-26 | 安徽沃弗电力科技有限公司 | A kind of air-cooled governor circulation demo system |
| CN114251257A (en) * | 2022-03-02 | 2022-03-29 | 天津国能津能滨海热电有限公司 | Method and system for controlling rotating speed of permanent magnet condensate pump, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20190829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |