CN210512688U - High-pressure saturated steam power generation and heating system in copper smelting process - Google Patents

High-pressure saturated steam power generation and heating system in copper smelting process Download PDF

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CN210512688U
CN210512688U CN201921098948.XU CN201921098948U CN210512688U CN 210512688 U CN210512688 U CN 210512688U CN 201921098948 U CN201921098948 U CN 201921098948U CN 210512688 U CN210512688 U CN 210512688U
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steam
steam turbine
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medium
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徐和军
赵文清
马建峰
宋振华
欧阳庆
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Suzhou Sida Turbine Power Technology Co Ltd
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Suzhou Sida Turbine Power Technology Co Ltd
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Abstract

The utility model discloses a be applied to high pressure saturated steam power generation heating system in copper metallurgy technology in pyrometallurgical copper metallurgy field, this steam inlet connects gradually the steam relief pressure valve, catch water, first medium pressure heater and first medium pressure steam turbine, and realize the drive electricity generation to first generator through first reduction gear case, the heating passageway is connected to the main vapour exit of first medium pressure steam turbine, the heating steam entry of first low pressure heater, the heating steam entry of second low pressure heater and the heating steam entry of second medium pressure heater, first low pressure heater is connected respectively to the main vapour export of second low pressure heater and second medium pressure heater, the main vapour entry of second low pressure steam turbine and second medium pressure steam turbine drives the second generator through second reduction gear case. The system ensures reasonable allocation of resources, reduces corrosion damage of the operation structure in the operation process, and provides guarantee for stable working effect of the system structure.

Description

High-pressure saturated steam power generation and heating system in copper smelting process
Technical Field
The utility model relates to a high-pressure saturated steam power generation and heating system in copper smelting process, which is applied in the field of copper smelting by pyrogenic process.
Background
A large amount of saturated steam can be generated in the pyrometallurgical copper smelting process, and in order to avoid resource waste, the steam is generally subjected to heating power generation operation. However, saturated steam and saturated steam generated in the pyrometallurgical copper smelting process inevitably contain condensed water, and liquid droplets are likely to be precipitated in the expansion power generation process. A traditional axial flow turbine is generally adopted in the steam power generation process, the device vibrates greatly, and meanwhile the erosion effect of liquid drops on an internal structure is increased. Meanwhile, high-pressure (especially more than 2.00MPa (A)) saturated steam is directly used for power generation, the structural requirement on a power generation device is increased, and the production cost is increased because the high-pressure shaft seal is difficult to seal, more liquid water is separated out from the steam in the expansion power generation process. When steam extraction operation is needed, the traditional axial-flow turbine is usually designed based on the original model, parameters are not freely customized, and the application range of the device is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a high pressure saturated steam power generation heating system in copper metallurgy technology of effective assurance job stabilization nature.
The utility model provides a technical scheme that its technical problem adopted is:
a high-pressure saturated steam power generation and heating system in a copper smelting process comprises a steam inlet, a steam pressure reducing valve, a steam-water separator, a heater, a steam turbine and a generator, wherein the steam inlet is communicated with high-pressure copper smelting saturated steam, the heater comprises a first low-pressure heater, a second low-pressure heater, a first medium-pressure heater and a second medium-pressure heater, the steam turbine comprises a first low-pressure steam turbine, a second low-pressure steam turbine, a first medium-pressure steam turbine and a second medium-pressure steam turbine, the generator comprises a first generator and a second generator, a separation inlet of the steam-water separator is communicated with the steam inlet, the steam pressure reducing valve is arranged between the steam inlets, a separation outlet of the steam-water separator is connected with a main steam inlet of the first medium-pressure heater, a main steam outlet of the first medium-pressure heater is connected with a main steam inlet of the first medium-pressure steam turbine, the first medium-pressure steam turbine realizes the driving power generation operation of a first generator through a first reduction gear box, a main steam outlet of the first medium-pressure steam turbine is connected with a heating channel and is connected with external heating equipment, the main steam outlet is respectively connected with a heating steam inlet of a first low-pressure heater, a heating steam inlet of a second low-pressure heater and a main steam inlet of a second medium-pressure heater through pipelines, main steam outlets of the first low-pressure heater, the second low-pressure heater and the second medium-pressure heater are respectively connected with a main steam inlet of a first low-pressure steam turbine, a main steam inlet of a second low-pressure steam turbine and a main steam inlet of a second medium-pressure steam turbine, the first low-pressure steam turbine, the second low-pressure steam turbine and the second medium-pressure steam turbine realize the driving power generation operation of the second generator through the second reduction gear box, and the main steam outlet of the first low-pressure steam turbine is connected with the main steam inlet of the second low-pressure heater, and a main steam outlet of the second low-pressure steam turbine is connected with a condensation inlet of the condenser, a condensation outlet of the condenser is connected with a condensed water recovery device, and a main steam outlet of the second medium-pressure steam turbine is connected with a main steam inlet of the first low-pressure heater.
The heating and power generation system firstly carries out throttling and pressure reduction operation on high-pressure copper smelting saturated steam, so that the sealing difficulty of the shaft seal is reduced. Steam-water separation and heating operation of the heater are carried out on the steam, the dryness of the steam is improved, guarantee is provided for the working stability of a subsequent steam turbine, and meanwhile the corrosion effect on an operation contact structure is reduced. And then, the steam discharged by the first medium-pressure steam turbine is used for heating on one hand and power generation on the other hand, and the steam discharged after the power generation operation is condensed by the condenser, and condensed water obtained by condensation is recycled. The system ensures reasonable allocation of resources, reduces corrosion damage to the operation structure in the operation process, and provides guarantee for continuous and stable working effect of the system structure.
Further, the first low-pressure steam turbine, the second low-pressure steam turbine, the first medium-pressure steam turbine and the second medium-pressure steam turbine are centripetal radial-flow steam turbines, the centripetal radial-flow steam turbines are of high-speed cantilever type structures, the first medium-pressure steam turbine is assembled with a high-speed shaft of a first reduction gear box, the first generator is connected with a low-speed shaft of the first reduction gear box through a coupler, the first low-pressure steam turbine, the second low-pressure steam turbine and the second medium-pressure steam turbine are assembled with a high-speed shaft of a second reduction gear box, and the second generator is connected with the low-speed shaft of the second reduction gear box through a coupler.
Furthermore, three sections of labyrinth seals and one section of comb oil seal are respectively arranged between the steam turbine and the reduction gear box, a shaft seal steam exhaust hole of the first section of labyrinth seal of the first medium pressure steam turbine, a shaft seal steam exhaust hole of the first section of labyrinth seal of the second medium pressure steam turbine, a shaft seal steam inlet hole of the first section of labyrinth seal of the first low pressure steam turbine and a shaft seal steam inlet hole of the first labyrinth seal of the second low pressure steam turbine are communicated, and the shaft seal steam exhaust holes of other labyrinth shaft seals are communicated with the external atmosphere.
Further, the steam turbine is a centripetal radial flow steam turbine.
Further, the steam inlet is communicated with the heating steam inlet of the first medium-pressure heater.
Further, the steam inlet is communicated with a heating steam inlet of the second medium-pressure heater.
The utility model has the advantages that:
1. the arrangement of the steam pressure reducing valve enables steam in the system to firstly carry out throttling and pressure reducing operation, reduces the sealing difficulty of the steam operation process on the shaft seal, is easy to realize the application of steam resources, improves the steam dryness through the heating of a steam-water separator and a heater, reduces the phenomenon of liquid drop precipitation in the operation process, simultaneously reduces the erosion damage to the internal structure of the operation device, ensures the normal service life of each device, and also carries out heating and power generation repeated application on the exhaust gas of the steam turbine in the system, thereby improving the resource utilization rate, ensuring the reasonable configuration of resources through the arrangement of the system, and providing guarantee for the continuous and stable working effect of the system structure while reducing the corrosion damage of the steam to the operation structure in the operation process;
2. a centripetal radial flow type steam turbine is used as an expander, so that the steam inlet and outlet parameters are customized freely, the application range of the device is expanded, and the working flexibility is improved;
3. the labyrinth seal is matched with the comb tooth oil seal to realize stable seal transmission and the effect of protecting a gear box bearing, so that the working stability is ensured, and meanwhile, the balance arrangement between shaft seals is ensured by utilizing the arrangement of the steam inlet and outlet openings, so that the working stability is improved;
4. the system directly communicates steam at the high-pressure copper smelting saturated steam inlet to the heater, and properly heats the decompressed saturated steam by using partial steam before decompression, so that the dryness of the saturated steam generated by the first medium-pressure steam turbine and the second medium-pressure steam turbine is improved, the saturated steam has slight superheat, and reasonable application of resources is realized;
5. according to the system, part of discharged steam of the first medium-pressure steam turbine is directly communicated into the heater, so that the dryness of saturated steam generated by the first low-pressure steam turbine and the second low-pressure steam turbine is improved, the saturated steam has slight superheat, and reasonable application of resources is realized.
Drawings
FIG. 1 is a schematic view of the overall connection of a high-pressure saturated steam power generation and heating system in a copper smelting process of the present invention;
FIG. 2 is a schematic view of the labyrinth seal connection of the first low-pressure steam turbine, the second low-pressure steam turbine, the first medium-pressure steam turbine and the second medium-pressure steam turbine of the high-pressure saturated steam power generation and heating system in the copper smelting process of the present invention;
labeled as: a steam pressure reducing valve 10, a steam-water separator 20, a first low-pressure heater 31, a second low-pressure heater 32, a first intermediate-pressure heater 33, a second intermediate-pressure heater 34, a first low-pressure steam turbine 41, a first section labyrinth seal 411 of the first low-pressure steam turbine, a second section labyrinth seal 412 of the first low-pressure steam turbine, a third section labyrinth seal 413 of the first low-pressure steam turbine, a comb oil seal 414 of the first low-pressure steam turbine, a second low-pressure steam turbine 42, a first section labyrinth seal 421 of the second low-pressure steam turbine, a second section labyrinth seal 422 of the second low-pressure steam turbine, a third section labyrinth seal 423 of the second low-pressure steam turbine, a comb oil seal 424 of the second low-pressure steam turbine, a first intermediate-pressure steam turbine 43, a first section labyrinth seal 431 of the first intermediate-pressure steam turbine, a second section labyrinth seal 432 of the first intermediate-pressure steam turbine, a third section of labyrinth seal 433 of the first medium pressure steam turbine, a comb tooth oil seal 434 of the first medium pressure steam turbine, the second medium pressure steam turbine 44, a first section of labyrinth seal 441 of the second medium pressure steam turbine, a second section of labyrinth seal 442 of the second medium pressure steam turbine, a third section of labyrinth seal 443 of the second medium pressure steam turbine, a comb tooth oil seal 444 of the second medium pressure steam turbine, the first reduction gear box 51, the second reduction gear box 52, the first generator 61, the second generator 62, and the condenser 70.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
In the structure of the high-pressure saturated steam power generation and heating system in the copper smelting process, as shown in fig. 1, the outlet part connected with the steam inlet of the high-pressure saturated copper smelting steam is respectively connected with the steam valve 10, the heating inlet of the first medium-pressure heater 33 and the heating inlet of the second medium-pressure heater 34. The other end of the steam valve 10 is connected to a separation inlet of the steam-water separator 20, the separation outlet is connected to a main steam inlet of the first intermediate-pressure heater 33, and a main steam outlet of the first intermediate-pressure heater 33 is connected to a main steam inlet of the second intermediate-pressure steam turbine 43. The second intermediate pressure steam turbine 44 is coupled to drive a first generator 61 through a first reduction gearbox 51. The second intermediate pressure steam turbine 44, the first reduction gearbox and the first generator 61 are combined into a back pressure genset. The main steam outlet of the second medium-pressure steam turbine 44 is connected to a heating pipe to be connected to an external heating device to perform a heating operation. The main steam outlet of the second intermediate pressure steam turbine 44 is also connected to the main steam inlet of the second intermediate pressure heater 34 and the second low pressure heater 32. The main steam inlet of the second intermediate-pressure heater 34 is connected to the main steam outlet of the first intermediate-pressure steam turbine 43. The main steam outlet of the first medium pressure steam turbine 43 is connected to the heating steam inlet of the first low pressure heater 31, and the main steam outlet of the first low pressure heater 31 is connected to the main steam inlet of the first low pressure steam turbine 41. The main steam outlet of the first low-pressure steam turbine 41 is connected to the main steam inlet of the second low-pressure heater 32, and the main steam outlet of the first low-pressure heater 32 is connected to the main steam inlet of the second low-pressure steam turbine 42. The main steam outlet of the second low-pressure steam turbine 42 is communicated with the condensation inlet of the condenser 70, so that the condensed water discharged from the condensation outlet of the condenser 70 can be directly recycled to the copper smelting process for recycling. The first low-pressure steam turbine 41, the second low-pressure steam turbine 42 and the second intermediate-pressure steam turbine 44 are connected to drive a second generator 62 through a second reduction gear box 52. The first generator 61 and the second generator 62 generate electric power and are connected to the power grid. The first low-pressure steam turbine 41, the second low-pressure steam turbine 42, the second intermediate-pressure steam turbine 44, the second reduction gear box, and the second motor constitute a straight condensing power generation unit.
The first low-pressure steam turbine 41, the second low-pressure steam turbine 42, the first intermediate-pressure steam turbine 43, and the second intermediate-pressure steam turbine 44 are radial-inflow steam turbines and have a high-speed cantilever structure. The first medium pressure steam turbine 43 is assembled with the high speed shaft of the first reduction gearbox 51 and the first generator 61 is connected with the low speed shaft of the first reduction gearbox 51 by a coupling. Similarly, the first low-pressure steam turbine 41, the second low-pressure steam turbine 42 and the second intermediate-pressure steam turbine 44 are assembled with the high-speed shaft of the second reduction gearbox 52, and the second generator 62 is connected with the low-speed shaft of the second reduction gearbox 52 through a coupling. And three sections of labyrinth seals and one section of comb tooth oil seal are respectively arranged between the steam turbine and the reduction gear box. The labyrinth seal has several successively arranged ring sealing teeth around the rotating shaft, and between the teeth there are formed a series of cut-off gaps and expansion cavities, so that the sealed medium can produce throttling effect when passing through the gaps of the zigzag labyrinth to reach the aim of preventing leakage. The labyrinth has no solid contact between rotor and casing, no need of lubrication, and thermal expansion, and is suitable for high temperature, high pressure and high rotation speed. Labyrinth seals are classified into two types, i.e., a sealing piece and a sealing ring, according to the structure of a sealing tooth. The sealing piece has a compact structure, collides with the machine shell in operation, can be bent towards two sides, reduces friction and is convenient to disassemble and replace. The sealing ring is composed of 6-8 fan-shaped blocks, the sealing ring is arranged in the shell and the rotating shaft, each ring is tightly pressed on the shell through a spring piece, and the pressing force of the spring piece is about 60-100N. When the shaft collides with the toothed ring, the toothed ring springs open automatically to avoid friction. The labyrinth seal is matched with the comb tooth oil seal to realize stable sealing transmission effect, and the working stability is ensured. As shown in fig. 2, the shaft seal exhaust hole of the first intermediate pressure steam turbine first section labyrinth seal 431, the shaft seal exhaust hole of the second intermediate pressure steam turbine first section labyrinth seal 441, the main steam outlet of the second intermediate pressure steam turbine 44, the shaft seal inlet hole of the first low pressure steam turbine first section labyrinth seal 411 and the shaft seal inlet hole of the second low pressure steam turbine first section labyrinth seal 421 communicate with each other. Then the second section labyrinth seal 412 of the first low-pressure steam turbine, the third section labyrinth seal 413 of the first low-pressure steam turbine, the comb oil seal 414 of the first low-pressure steam turbine, the second section labyrinth seal 422 of the second low-pressure steam turbine, the third section labyrinth seal 423 of the second low-pressure steam turbine, the comb oil seal 424 of the second low-pressure steam turbine, the second section labyrinth seal 432 of the first intermediate-pressure steam turbine, the third section labyrinth seal 433 of the first intermediate-pressure steam turbine, the comb oil seal 434 of the first intermediate-pressure steam turbine, the second intermediate-pressure steam turbine 44, and the first section labyrinth seal 441 of the second medium-pressure steam turbine, the second section labyrinth seal 442 of the second medium-pressure steam turbine, the third section labyrinth seal 443 of the second medium-pressure steam turbine, the comb oil seal 444 of the second medium-pressure steam turbine and the steam exhaust hole are communicated with the external atmosphere. By the above-described method of arranging the shaft seal structure, the shaft seals of the first low pressure turbine generator 41, the second low pressure turbine generator, the first intermediate pressure turbine generator 43, and the second intermediate pressure turbine generator 44 are all balanced.
After the connection of the devices is completed according to fig. 1 and 2, the actual operation can be performed. In a certain copper smelting process, when matte containing more than 97.5 percent of copper is obtained by blowing matte through a converter, saturated steam with the concentration of 32.0t/h and the pressure of 3.90MPa (A) is generated by a waste heat boiler and enters the power generation and heating system along with a steam inlet. Wherein the pressure of the steam of 31.3t/h is reduced to 2.095MPa (A) after passing through the steam reducing valve 10, and then the steam and water are separated by the steam-water separator 20. The mass flow rate of the steam pressure reducing valve 10 is 32.0t/h, the inlet temperature is 248.9 ℃, the inlet pressure is 3.90MPa (A), and the inlet pressure is 2.095MPa (A). The inlet pressure of the steam-water separator 20 is 3.90MPa (A), the inlet temperature is 248.9 ℃, the separation output is 32.0t/h, and the material is 345R. The separated steam is heated to a pressure of 2.00MPa (A) and a temperature of 228 ℃ in the first intermediate-pressure heater 33, and then enters the first intermediate-pressure steam turbine 43 to do work, and then the first intermediate-pressure steam turbine 43 drives the first generator 61 to generate electricity through the first reduction gear box 51. The first medium pressure steam turbine 43 is of the back pressure power generating, semi-open type radial inflow turbine type. And the impeller of the first medium pressure steam turbine 43 is a precipitation hardened stainless steel impeller. The first gear reducer 51 is in the form of a multi-stage carburized parallel gear. The high speed support bearing of the first gear reduction box 51 is a tilting pad bearing and the high speed thrust bearing is a tilting pad thrust bearing. The high speed bearing is connected to a first medium pressure steam turbine 43. Meanwhile, the low-speed supporting bearing is a round tile, the low-speed thrust bearing is a plane combined bearing, and the low-speed bearing is connected with the first generator 61 through a coupler. The power output by the backpressure generating set is 855.2KW and is merged into a power grid.
The steam discharged from the first intermediate pressure steam turbine 43 was supplied to the heating at 20.0t/h, and the other 700kg/h was supplied to the first low pressure heater 31 and the second low pressure heater 33 as heating steam. The steam exiting the first intermediate pressure steam turbine 43 is also passed to a straight condensing power generation unit at 10.55t/h steam. The steam is discharged and then enters the second intermediate-pressure heater 34 to be heated, and the heated steam enters the second intermediate-pressure steam turbine 44 to perform work. The steam discharged from the corresponding second medium pressure steam turbine 44 is introduced into the first low pressure heater 31 for heating, and the steam heated in the first low pressure heater 31 is introduced into the first low pressure steam turbine 41 for work driving, and the main steam discharged from the first low pressure steam turbine 41 is introduced into the second low pressure heater 32 for heating operation, and then flows into the second low pressure steam turbine 42 along with the pipeline for driving. The high speed shaft assembly of the second reduction gearbox 52 of the first low pressure steam turbine 41, the second low pressure steam turbine 42 and the second intermediate pressure steam turbine 44 is connected to the second generator 62 through a coupling, the second generator 62 is driven by the steam turbines to generate electricity, and the pure condensing generator set outputs 1343.3KW of electricity to be connected to the grid. The main steam outlet of the second low-pressure steam turbine 42 is led into a condenser 70, and condensed water is obtained through the condensation operation of the condenser 70, and the condensed water of 10.55t/h can be recycled in the copper smelting process for reuse. The second intermediate-pressure steam turbine 44, the first low-pressure steam turbine 41 and the second low-pressure steam turbine 42 are of the unit type pure-condensing power generation, semi-open centripetal turbine. The impeller is of the type precipitation hardened stainless steel impeller. The second reduction gear box 52 is connected to the first reduction gear box 51 in the same manner as the method for installing the first reduction gear box 51. The generator set in the power generation system adopts a structural form that a GST type turbine of Suzhou West turbine power technology limited company is matched with a gear reduction box and a generator. The installed capacity of the synchronous generator is 1,000kW +1,500kW, and 2198.5kW of electric power can be output in total.
In this embodiment, the shaft seal leakage after the first section labyrinth seal 431 of the first intermediate pressure steam turbine is communicated with the shaft seal leakage after the first section labyrinth seal 441 of the second intermediate pressure steam turbine, the main steam outlet of the second intermediate pressure steam turbine 44, the shaft seal inlet after the first section labyrinth seal 411 of the first low pressure steam turbine, and the shaft seal inlet after the first section labyrinth seal 421 of the second low pressure steam turbine, and these communicated pipelines are maintained at a pressure of 0.300mpa (a). The shaft seal behind the first intermediate pressure steam turbine second section labyrinth seal 432, the shaft seal behind the second intermediate pressure steam turbine second section labyrinth seal 442, the shaft seal behind the first low pressure steam turbine second section labyrinth seal 412, and the shaft seal behind the second low pressure steam turbine second section labyrinth seal 422 are all vented. At this time, the shaft seals of 4 turbines are effectively sealed in a balanced manner.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (5)

1. The high-pressure saturated steam power generation and heating system in the copper smelting process is characterized by comprising a steam inlet, a steam reducing valve (10), a steam-water separator (20), a heater, a steam turbine and a generator, wherein the steam inlet is communicated with high-pressure copper smelting saturated steam, the heater comprises a first low-pressure heater (31), a second low-pressure heater (32), a first medium-pressure heater (33) and a second medium-pressure heater (34), the steam turbine comprises a first low-pressure steam turbine (41), a second low-pressure steam turbine (42), a first medium-pressure steam turbine (43) and a second medium-pressure steam turbine (44), the generator comprises a first generator (61) and a second generator (62), a separation inlet of the steam-water separator (20) is communicated with the steam inlet, and the steam reducing valve (10) is arranged between the steam inlet and the steam separator (20), a separation outlet of the steam-water separator (20) is connected with a heating steam inlet of a first medium-pressure heater (33), a heating steam outlet of the first medium-pressure heater (33) is connected with a main steam inlet of a first medium-pressure steam turbine (43), the first medium-pressure steam turbine (43) drives a first generator (61) to generate electricity through a first reduction gear box (51), the main steam outlet of the first medium-pressure steam turbine (43) is connected with a heating channel and is connected with external heating equipment, the main steam outlet of the first medium-pressure steam turbine (43) is respectively connected with the heating steam inlets of a first low-pressure heater (31) and a second low-pressure heater (32) and the main steam inlet of the second medium-pressure heater (34) through pipelines, and the heating steam outlets of the first low-pressure heater (31), the second low-pressure heater (32) and the second medium-pressure heater (34) are respectively connected with a first low-pressure steam turbine (41) and a second medium-pressure steam turbine (41), The main steam inlet of a second low-pressure steam turbine (42) and a second medium-pressure steam turbine (44), the first low-pressure steam turbine (41), the second low-pressure steam turbine (42) and the second medium-pressure steam turbine (44) realize the driving power generation operation of a second generator (62) through a second reduction gear box (52), the gas discharge outlet of the first low-pressure steam turbine (41) is connected with the main steam inlet of a second low-pressure heater (32), the main steam outlet of the second low-pressure steam turbine (42) is connected with the condensation inlet of a condenser (70), the condensation outlet of the condenser (70) is connected with a condensed water recovery device, and the main steam outlet of the second medium-pressure steam turbine (44) is connected with the main steam inlet of the first low-pressure heater (31).
2. The system for generating and heating high-pressure saturated steam in a copper smelting process according to claim 1, characterized in that the first low-pressure steam turbine (41), the second low-pressure steam turbine (42), the first intermediate-pressure steam turbine (43) and the second intermediate-pressure steam turbine (44) are centripetal radial-flow steam turbines, the centripetal radial-flow steam turbine is of a high-speed cantilever structure, the first medium-pressure steam turbine (43) is assembled with a high-speed shaft of a first reduction gear box (51), the first generator (61) is connected with the low-speed shaft of the first reduction gear box (51) through a coupler, said first low pressure steam turbine (41), second low pressure steam turbine (42) and second intermediate pressure steam turbine (44) being assembled with the high speed shaft of a second reduction gearbox (52), the second generator (62) is connected with the low-speed shaft of the second reduction gearbox (52) through a coupling.
3. The high-pressure saturated steam power generation and heating system in the copper smelting process is characterized in that three sections of labyrinth seals and one section of comb oil seal are respectively arranged between the steam turbines and the reduction gear box, and a shaft seal exhaust hole of a first section of labyrinth seal (431) of the first medium-pressure steam turbine, a shaft seal exhaust hole of a first section of labyrinth seal (441) of the second medium-pressure steam turbine, a main steam outlet of the second medium-pressure steam turbine (44), a shaft seal steam inlet hole of a first section of labyrinth seal (411) of the first low-pressure steam turbine and a shaft seal steam inlet hole of a first section of labyrinth seal (421) of the second low-pressure steam turbine are communicated.
4. The high-pressure saturated steam power-generation heating system in the copper smelting process as claimed in claim 1, wherein the steam inlet is communicated with a heating steam inlet of the first medium-pressure heater (33).
5. The high-pressure saturated steam power-generation heating system in the copper smelting process as claimed in claim 1, wherein the steam inlet is communicated with a heating steam inlet of the second medium-pressure heater (34).
CN201921098948.XU 2019-07-13 2019-07-13 High-pressure saturated steam power generation and heating system in copper smelting process Active CN210512688U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345773A (en) * 2019-07-13 2019-10-18 苏州西达透平动力技术有限公司 A kind of copper metallurgy technique mesohigh saturated vapor power generation heating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345773A (en) * 2019-07-13 2019-10-18 苏州西达透平动力技术有限公司 A kind of copper metallurgy technique mesohigh saturated vapor power generation heating system

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