Turbine power generation device and turbine power station

Abstract

According to the turbine power generation device and the turbine power station, the turbine power generation part of the turbine power generation device receives steam of the main steam pipeline, dead steam formed after power generation is output to the condenser through the dead steam pipeline to be condensed into condensate water, and the condensate water is conveyed back to the boiler to achieve water resource circulation; a steam branch part comprising a branch steam pipeline and a temperature and pressure reducer is further arranged, so that when the turbine power generation part breaks down or needs to be shut down during maintenance, steam in the main steam pipeline can enter the branch steam pipeline, is subjected to temperature and pressure reduction through the temperature and pressure reducer and then is output into the condenser for condensation operation. The temperature and pressure reducer enables treated steam to meet the performance of the condenser, condensed water is conveyed back to the boiler to achieve water resource circulation, and due to the fact that the condensed water can be recycled, consumption of natural water resources is reduced, and energy is saved. The problem that when an existing turbine unit needs to be shut down, steam generated by a boiler is discharged, and consequently water resources are wasted is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to turbine power generation technical field especially relates to a turbine power generation device and turbine power station. BACKGROUND

[0002] At present, some industrial enterprises have some excess medium and low temperature steam directly discharged, which causes waste of heat resources and waste of water resources, the steam is used to drive the steam type high speed turbine set to rotate to generate electric energy, so that the exhaust steam discharged from the steam turbine outlet is condensed into water by the condenser, and the water is transported to the boiler for recycling, in the process, when the high speed turbine fails or is overhauled, it is necessary to stop the machine without stopping the furnace, so it is necessary to discharge the generated steam, which causes waste of heat resources and water is not recovered. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that the turbine set needs to be stopped when the existing turbine set produces steam from the boiler, which leads to waste of water resources.

[0004] To solve the above problems, the technical scheme of the utility model is as follows:

[0005] The turbine power generation device comprises:

[0006] A turbine power generation part;

[0007] A main steam pipeline, two ends of the main steam pipeline are respectively connected with a steam input end of the turbine power generation part and an external boiler;

[0008] A condenser, a steam input end of the condenser is communicated with an exhaust steam output end of the turbine power generation part through an exhaust steam pipeline, and a condensed water output end of the condenser is communicated with an external boiler through a condensed water pipeline;

[0009] Further comprising a steam branch part, the steam branch part is configured to receive steam that cannot be received by the turbine power generation part from the main steam pipeline and output to the condenser after temperature and pressure reduction treatment;

[0010] The steam branch part comprises a branch steam pipeline and a temperature and pressure reducer, two ends of the branch steam pipeline are respectively communicated with the main steam pipeline and an input end of the condenser, and the temperature and pressure reducer is arranged on the branch steam pipeline.

[0011] The turbine power generation device comprises: The condenser is provided with a condensing channel and a cooling water channel arranged in heat exchange with each other, two ends of the condensing channel are respectively communicated with the steam input end and the condensed water output end, and two ends of the cooling water channel are respectively connected with an external cooling tower through a cooling water pipeline.

[0012] The turbine power generation device of this utility model also includes a vacuum section, the vacuum suction end of which is connected to the condenser, and the vacuum section is configured to suction the uncondensed medium in the condenser.

[0013] The turbine power generation device of this utility model includes a vacuum unit comprising a vacuum generator and a gas-liquid separator.

[0014] The vacuum end and the medium output end of the vacuum generating device are respectively connected to the condenser and the gas-liquid separator through pipelines.

[0015] The turbine power generation device of this invention includes at least one water ring vacuum pump as the vacuum generating device.

[0016] The turbine power generation device of this utility model further includes a heat dissipation pipe and a heat dissipation device arranged in the heat dissipation pipe in the vacuum section.

[0017] The two ends of the heat dissipation pipe are respectively connected to the vacuum end of the vacuum generator and the gas-liquid separator.

[0018] The present invention relates to a turbine power generation device, wherein the turbine power generation section includes a turbine body and a generator;

[0019] The steam input end of the turbine body is connected to the main steam pipeline, the exhaust steam output end of the turbine body is connected to the exhaust steam pipeline, and the power output end of the turbine body is connected to the power input end of the generator.

[0020] The turbine power generation device of this utility model further includes a gearbox, the input end and output end of which are respectively connected to the power output end of the turbine body and the power input end of the generator.

[0021] The turbine power generation device of this utility model has a power pump installed on the condensate pipe.

[0022] The present invention provides a turbine power station, comprising any one of the turbine power generation devices described above.

[0023] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0024] One embodiment of this utility model configures the turbine power generation unit to receive steam from the main steam pipeline. The exhaust steam generated after power generation is output to the condenser through the exhaust steam pipeline and condensed into condensate, which is then transported back to the boiler to achieve water resource recycling. Furthermore, a steam branch section including branch steam pipelines and a desuperheater / pressure reducer is provided. This allows steam in the main steam pipeline to enter the branch steam pipeline when the turbine power generation unit needs to be shut down due to malfunction or maintenance. After being cooled and depressurized by the desuperheater / pressure reducer, the steam is output to the condenser for condensation. The desuperheater / pressure reducer ensures that the processed steam meets the performance requirements of the condenser. The condensate is then transported back to the boiler to achieve water resource recycling. Because the condensate can be recycled, the consumption of natural water resources is reduced, solving the problem of water waste caused by the release of steam generated by the boiler when existing turbine units need to be shut down.

[0025] In addition, the installation of condensers can extend the service life of high-speed turbines because the condensed water does not contain corrosive substances, which can reduce the corrosion of the turbine. Attached Figure Description

[0026] Figure 1 A schematic diagram of the turbine power generation device and turbine power station of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Main steam pipeline; 2. Turbine body; 3. Gearbox; 4. Generator; 5. Exhaust steam pipeline; 6. Condenser; 7. Branch steam pipeline; 8. Desuperheater and pressure reducer; 9. Condensate pipeline; 10. Cooling water pipeline; 11. Power pump; 12. Water ring vacuum pump; 13. Gas-liquid separator; 14. Heat dissipation device. Detailed Implementation

[0028] The present invention provides a turbine power generation device and a turbine power station in further detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims.

[0029] Example 1

[0030] See Figure 1 In one embodiment, a turbine power generation device includes a turbine power generation section, a main steam pipeline 1, a condenser 6, and a steam branch section.

[0031] The two ends of the main steam pipeline 1 are connected to the steam input end of the turbine power generation unit and the external boiler, respectively. The steam input end of the condenser 6 is connected to the exhaust steam output end of the turbine power generation unit through the exhaust steam pipeline 5, and the condensate output end of the condenser 6 is connected to the external boiler through the condensate pipeline 9, thereby realizing the recycling of water resources in the exhaust steam section.

[0032] The steam branch section is configured to receive steam that the turbine power generation unit cannot receive from the main steam pipeline 1, and then output it to the condenser 6 after desuperheating and pressure reduction treatment. The steam branch section includes a branch steam pipeline 7 and a desuperheater / pressure reducer 8. The two ends of the branch steam pipeline 7 are connected to the main steam pipeline 1 and the input end of the condenser 6, respectively, and the desuperheater / pressure reducer 8 is installed on the branch steam pipeline 7.

[0033] This embodiment configures the turbine power generation unit to receive steam from the main steam pipeline 1. The exhaust steam generated after power generation is output through the exhaust steam pipeline 5 to the condenser 6 for condensation into condensate, which is then transported back to the boiler to achieve water resource recycling. Furthermore, a steam branch section including a branch steam pipeline 7 and a desuperheater / pressure reducer 8 is provided. This allows steam in the main steam pipeline 1 to enter the branch steam pipeline 7 when the turbine power generation unit needs to be shut down due to malfunction or maintenance. After being cooled and depressurized by the desuperheater / pressure reducer 8, the steam is output to the condenser 6 for condensation. The desuperheater / pressure reducer 8 ensures that the processed steam meets the performance requirements of the condenser 6. The condensed condensate is then transported back to the boiler to achieve water resource recycling. Because the condensed water can be recycled, the consumption of natural water resources is reduced, solving the problem of water waste caused by the release of steam generated by the boiler when the existing turbine unit needs to be shut down.

[0034] In addition, the installation of condenser 6 can extend the service life of the high-speed turbine because the condensed water does not contain corrosive substances, which can reduce the corrosion of the turbine.

[0035] The specific structure of the turbine power generation device in this embodiment will be further described below:

[0036] In this embodiment, the condenser 6 is equipped with a condensation channel and a cooling water channel arranged for mutual heat exchange. The two ends of the condensation channel are connected to the steam input end and the condensate output end, respectively. The two ends of the cooling water channel are connected to the external cooling tower through cooling water pipes 10. That is, the two cooling water pipes 10 are connected between the cooling water channel and the external cooling tower to form a cooling water circulation. The low-temperature cooling water after being cooled by the external cooling tower enters the cooling water channel in the condenser 6 and exchanges heat with the steam in the condensation channel. The heated cooling water then returns to the cooling tower for circulation. The steam in the condensation channel decreases in temperature after heat exchange, thereby condensing into cold water, which flows into the subsequent condensate pipe 9. It can then be driven to the external boiler by the power pump 11 on the condensate pipe 9.

[0037] In this embodiment, since there may still be some uncondensed medium (such as some other gas components) in the steam in the main steam pipeline 1, after long-term operation, the condenser 6 may accumulate this uncondensed medium, resulting in problems such as reduced condensation effect. Therefore, the turbine power generation device may also include a vacuum section, the vacuum suction end of which is connected to the condenser 6. The vacuum section is configured to suction the uncondensed medium in the condenser 6.

[0038] Furthermore, the vacuum section may include a vacuum generator and a gas-liquid separator 13. The vacuum end and the medium output end of the vacuum generator are connected to the condenser 6 and the gas-liquid separator 13 respectively via pipelines. The function of the gas-liquid separator 13 is to separate the gas-liquid mixture since the vacuum generator may carry out some condensate during the suction process. The gas can be discharged directly or after treatment, while the separated liquid can be output to the plant area for further treatment or utilization.

[0039] Specifically, the vacuum generating device is at least one water ring vacuum pump 12, which may be configured as two or three water ring vacuum pumps 12 in parallel.

[0040] Furthermore, since the gas-liquid mixture extracted from the condenser 6 under negative pressure may still have excessive heat, the vacuum section may also include heat dissipation pipes and heat dissipation devices 14 arranged on the heat dissipation pipes. The two ends of the heat dissipation pipes are connected to the vacuum end of the vacuum generator and the gas-liquid separator 13, respectively. That is, the negative pressure generated by the vacuum generator extracts the liquid located in the gas-liquid separator 13, and after the heat is dissipated by the heat dissipation device 14, it re-enters the gas-liquid separator 13. The heat dissipation device 14 can be a radiator that exchanges heat with the air through fins or other structures, or it can be a heat exchanger that absorbs heat using a cooling medium.

[0041] In this embodiment, the turbine power generation unit includes a turbine body 2 and a generator 4. The steam input end of the turbine body 2 is connected to the main steam pipeline 1, the exhaust steam output end of the turbine body 2 is connected to the exhaust steam pipeline 5, and the power output end of the turbine body 2 is connected to the power input end of the generator 4. Further, the turbine power generation unit may also include a gearbox 3, with its input and output ends connected to the power output end of the turbine body 2 and the power input end of the generator 4, respectively.

[0042] The turbine power generation device of this embodiment can improve the power generation efficiency of high-speed turbines and reduce energy waste. It also reduces environmental pollution because the condensed water can be recycled, reducing the consumption of natural water resources and lowering costs. Furthermore, the bypass condenser 6 can extend the service life of the high-speed turbine because the condensed water does not contain corrosive substances, reducing corrosion. Moreover, the turbine power generation device is applicable to four sets of medium- and low-temperature turbine generators, suitable for waste heat and pressure power generation, and fully adaptable to the all-weather operation of steam-type high-speed turbine units.

[0043] Example 2

[0044] This embodiment provides a turbine power plant, including the turbine power generation device in Embodiment 1 above. By setting a steam branch section including a branch steam pipeline 7 and a desuperheater and pressure reducer 8, when the turbine power generation unit needs to be shut down due to failure or maintenance, the steam in the main steam pipeline 1 can enter the branch steam pipeline 7, and after being cooled and depressurized by the desuperheater and pressure reducer 8, it is output to the condenser 6 for condensation. The desuperheater and pressure reducer 8 ensures that the processed steam meets the performance requirements of the condenser 6. The condensate is transported back to the boiler to achieve water resource recycling. Because the condensate can be recycled, the consumption of natural water resources is reduced, and the problem of water waste caused by the release of steam generated by the boiler when the existing turbine unit needs to be shut down is solved.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A turbine power generation device, characterized in that, include: Turbine power generation unit; The main steam pipeline is connected at both ends to the steam input end of the turbine power generation unit and an external boiler, respectively. The condenser has its steam input end connected to the exhaust steam output end of the turbine power generation unit via an exhaust steam pipeline, and its condensate output end connected to an external boiler via a condensate pipeline. It also includes a steam branch section, which is configured to receive steam that the turbine power generation unit cannot receive from the main steam pipeline, and then output the steam to the condenser after de-temperature and pressure reduction treatment. The steam branch section includes a branch steam pipeline and a desuperheater and pressure reducer; the two ends of the branch steam pipeline are respectively connected to the main steam pipeline and the input end of the condenser, and the desuperheater and pressure reducer are installed on the branch steam pipeline.

2. The turbine power generation device as described in claim 1, characterized in that, The condenser is equipped with a condensation channel and a cooling water channel arranged for mutual heat exchange. The two ends of the condensation channel are respectively connected to the steam input end and the condensate output end, and the two ends of the cooling water channel are respectively connected to an external cooling tower through cooling water pipelines.

3. The turbine power generation device as described in claim 1, characterized in that, It also includes a vacuum section, the vacuum suction end of which is connected to the condenser, and the vacuum section is configured to suction uncondensed medium inside the condenser.

4. The turbine power generation device as described in claim 3, characterized in that, The vacuum section includes a vacuum generator and a gas-liquid separator; The vacuum end and the medium output end of the vacuum generating device are respectively connected to the condenser and the gas-liquid separator through pipelines.

5. The turbine power generation device as described in claim 4, characterized in that, The vacuum generating device is at least one water ring vacuum pump.

6. The turbine power generation device as described in claim 4, characterized in that, The vacuum section also includes heat dissipation pipes and heat dissipation devices arranged on the heat dissipation pipes; The two ends of the heat dissipation pipe are respectively connected to the vacuum end of the vacuum generator and the gas-liquid separator.

7. The turbine power generation device as described in claim 1, characterized in that, The turbine power generation unit includes a turbine body and a generator; The steam input end of the turbine body is connected to the main steam pipeline, the exhaust steam output end of the turbine body is connected to the exhaust steam pipeline, and the power output end of the turbine body is connected to the power input end of the generator.

8. The turbine power generation device as described in claim 7, characterized in that, The turbine power generation unit also includes a gearbox, the input end and the output end of which are respectively connected to the power output end of the turbine body and the power input end of the generator.

9. The turbine power generation device as described in claim 1, characterized in that, A power pump is installed on the condensate pipe.

10. A turbine power station, characterized in that, Includes the turbine power generation device as described in any one of claims 1 to 9.

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