CN215566140U - Control device for improving optimal thermal efficiency of IGCC steam turbine - Google Patents
Control device for improving optimal thermal efficiency of IGCC steam turbine Download PDFInfo
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- CN215566140U CN215566140U CN202122430449.XU CN202122430449U CN215566140U CN 215566140 U CN215566140 U CN 215566140U CN 202122430449 U CN202122430449 U CN 202122430449U CN 215566140 U CN215566140 U CN 215566140U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model provides a control device for improving the optimal thermal efficiency of an IGCC steam turbine, which comprises a low-pressure cylinder, wherein a steam exhaust port is connected with a condenser through a steam exhaust pipeline; the output end of the condenser is connected with the water cooling tower through a first pipeline and a second pipeline respectively; the second valve is an electric valve and is arranged on the second pipeline; the temperature sensor is arranged in a steam exhaust pipeline close to the steam exhaust port of the low-pressure cylinder; the controller is arranged on the second pipeline, is electrically connected with the second valve, receives a temperature signal of the temperature sensor, forms an automatic control loop through the controller, the temperature sensor and the electric valve, takes the exhaust steam temperature of the low-pressure cylinder as a main control parameter, and regulates and controls the opening degree of the electric valve through comparing with a set rated value in the controller until the exhaust steam temperature is between 31.5 and 33.5 ℃; the exhaust temperature of the low-pressure cylinder of the steam turbine can be controlled more timely and effectively by automatic adjustment and automatic control.
Description
Technical Field
Embodiments of the present invention relate generally to the field of IGCC power plant technology and, more particularly, to a control arrangement for increasing the optimal thermal efficiency of an IGCC turbine.
Background
The IGCC steam turbine generator is verified by practice to control the steam exhaust temperature of a low-pressure cylinder of a steam turbine to be in 31.5-33.5 ℃ operation, the steam turbine has the highest power generation efficiency, the steam exhaust temperature of the low-pressure cylinder is related to the temperature and the flow of circulating cooling water, the two parameters are related to a control loop of the circulating cooling water returning to a tower pool, and the flow distribution of the circulating water returning to the tower is controlled by manually controlling different opening degrees of a valve on the control loop, so that the steam exhaust temperature of a condenser is influenced. The manual valve adjustment needs to be carried out for multiple times, and the exhaust temperature of the low-pressure cylinder of the steam turbine can not be effectively controlled to be 31.5-33.5 ℃ in time.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a control device for improving the optimal thermal efficiency of an IGCC steam turbine, which can effectively control the exhaust temperature of a low-pressure cylinder of the steam turbine to be 31.5-33.5 ℃ in time.
The technical scheme of the implementation of the utility model is as follows: a control device for improving the optimal thermal efficiency of an IGCC steam turbine comprises a low-pressure cylinder, wherein a steam exhaust port is connected with a condenser through a steam exhaust pipeline;
the output end of the condenser is connected with the water cooling tower through a first pipeline and a second pipeline respectively;
the second valve is an electric valve and is arranged on the second pipeline;
the temperature sensor is arranged in a steam exhaust pipeline close to the steam exhaust port of the low-pressure cylinder;
and the controller is arranged on the second pipeline, is electrically connected with the second valve and receives the temperature signal of the temperature sensor.
Further, a first valve is arranged on the first pipeline.
And further, the device comprises a circulating cooling water pump, the output end of the circulating cooling water pump is connected with the output end of the condenser through a pipeline, and the input end of the circulating cooling water pump is connected and communicated with the drainage end of the water cooling tower through a pipeline.
In the control device for improving the optimal thermal efficiency of the IGCC turbine provided by the embodiment of the utility model, the following technical effects are realized: an automatic control loop is formed by the controller, the temperature sensor and the electric valve, the exhaust steam temperature of the low-pressure cylinder is used as a main control parameter, and the opening degree of the electric valve is regulated and controlled by comparing with a rated value set in the controller until the exhaust steam temperature is between 31.5 and 33.5 ℃; the exhaust temperature of the low-pressure cylinder of the steam turbine can be controlled more timely and effectively by automatic adjustment and automatic control.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 is a schematic diagram of a control arrangement for increasing the optimal thermal efficiency of an IGCC turbine.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is:
10. the system comprises a circulating cooling water pump 20, a condenser 30, a water cooling tower 40, a first pipeline 41, a first valve 50, a second pipeline 51, a second valve 60, a controller 70, a low-pressure cylinder 80, an exhaust pipeline 81 and a temperature sensor.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
A control apparatus for increasing the optimal thermal efficiency of an IGCC turbine according to an embodiment of the present invention will be described with reference to fig. 1, including: the low-pressure cylinder 70 is connected with the condenser 20 through a steam exhaust pipeline 80 at a steam exhaust port;
the output end of the condenser 20 is connected with the water cooling tower through a first pipeline 40 and a second pipeline 50 respectively;
a second valve 51, which is an electrically operated valve, provided on the second pipe 50;
a temperature sensor 81 arranged in the steam exhaust pipe 80 near the steam exhaust port of the low pressure cylinder 70;
and a controller 60 disposed on the second pipe 50, electrically connected to the second valve 51, controlling the opening of the second valve 51, and receiving a temperature signal from the temperature sensor 81.
The controller 60 receives the temperature value at the steam outlet to automatically regulate the opening degree of the second valve 51, the temperature sensor 81 senses a temperature value signal at the steam outlet and transmits the signal to the controller 60, and by comparing the signal with a rated value of the temperature set by the controller 60, the second valve 51 is regulated to be in an open state when the temperature is lower than 31.5 degrees, and the second valve 51 is regulated to be in a closed state when the temperature is higher than 33.5 degrees,
the nominal value of the temperature here is a temperature value set in the controller 60.
In some embodiments, a first valve 41 is disposed on the first pipe 40, and the first valve 41 controls the flow of the drain water in the first pipe 40.
In some embodiments, the output end of the recirculating cooling water pump 10 is connected to an output end of the condenser 20 through a pipeline, and the input end of the recirculating cooling water pump 10 is connected to the water discharging end of the water cooling tower 30 through a pipeline.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (3)
1. A control apparatus for increasing the optimal thermal efficiency of an IGCC turbine, comprising:
the exhaust port of the low-pressure cylinder is connected with the condenser through an exhaust pipeline;
the output end of the condenser is connected with the water cooling tower through a first pipeline and a second pipeline respectively;
the second valve is an electric valve and is arranged on the second pipeline;
the temperature sensor is arranged in a steam exhaust pipeline close to the steam exhaust port of the low-pressure cylinder;
and the controller is arranged on the second pipeline, is electrically connected with the second valve and receives the temperature signal of the temperature sensor.
2. The control apparatus for increasing optimal thermal efficiency of an IGCC turbine as claimed in claim 1, wherein said first conduit is provided with a first valve.
3. The control device for improving the optimal thermal efficiency of the IGCC turbine according to claim 1, which comprises a circulating cooling water pump, wherein the output end of the circulating cooling water pump is connected with the output end of the condenser through a pipeline, and the input end of the circulating cooling water pump is connected with the water discharging end of the water cooling tower through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122430449.XU CN215566140U (en) | 2021-10-09 | 2021-10-09 | Control device for improving optimal thermal efficiency of IGCC steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122430449.XU CN215566140U (en) | 2021-10-09 | 2021-10-09 | Control device for improving optimal thermal efficiency of IGCC steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566140U true CN215566140U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122430449.XU Active CN215566140U (en) | 2021-10-09 | 2021-10-09 | Control device for improving optimal thermal efficiency of IGCC steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215566140U (en) |
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2021
- 2021-10-09 CN CN202122430449.XU patent/CN215566140U/en active Active
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