CN109113814B - Low-energy-loss efficient step-entering turbine thermal power transmission system and working method thereof - Google Patents
Low-energy-loss efficient step-entering turbine thermal power transmission system and working method thereof Download PDFInfo
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- CN109113814B CN109113814B CN201811005584.6A CN201811005584A CN109113814B CN 109113814 B CN109113814 B CN 109113814B CN 201811005584 A CN201811005584 A CN 201811005584A CN 109113814 B CN109113814 B CN 109113814B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
- F01K7/18—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
- F01K7/18—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
- F01K7/20—Control means specially adapted therefor
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Abstract
The invention relates to a low-energy-loss efficient step-entering turbine thermal power transmission system and a working method thereof. The development of the thermal power transmission system with high conversion efficiency has great significance on the whole thermal power system, and the achievement has positive effects and effects on environmental protection, energy conservation and emission reduction. According to the invention, through the devices such as the first-stage turbine transmission device, the second-stage turbine transmission device, the third-stage turbine transmission device, the fourth-stage turbine transmission device and the steam pressure control head, the steam electric energy conversion of the turbine mechanism in the thermal power system can be realized, meanwhile, the hierarchical step-in turbine transmission mechanism arranged in the system can carry out hierarchical regulation on the pressure of steam, so that low-pressure steam after primary power generation is converted into high-pressure steam again and enters the subsequent secondary turbine transmission device again to realize the secondary power generation, the service efficiency of the steam of the thermal power system is improved to a great extent, the thermal power system has wider application value and popularization prospect, and has important effects on energy conservation, emission reduction and environmental protection.
Description
Technical Field
The invention relates to a thermal power transmission system, in particular to a low-energy-loss efficient step-in turbine thermal power transmission system and a working method thereof.
Background
In recent years, the mode of generating electricity by a thermal power system as a mode of generating heat energy by adopting the combustion action of combustible substances and finally generating electric energy by the conversion action of a thermal power transmission device is a domestic more traditional power generation mode, and the reason is mainly that the coal resources of China are rich, and the thermal power system has necessary fuel required by the thermal power system.
Because the thermal power generation system can bring problems of dust pollution, smoke pollution, resource consumption and the like, and along with gradual relaxation of Chinese power supply and the importance of China on energy conservation and consumption reduction, china starts to increase the dynamics and adjust the structure of the thermal power generation industry, environmental protection and energy conservation become important directions of the structure adjustment of the Chinese power industry, and the thermal power industry actively advances the optimization and upgrading of the industrial structure under the guidance of related policies, so that the updating of domestic thermal power equipment and the conversion of power generation modes are accelerated to a great extent.
At present, the thermal power system in China sends steam into a steam turbine along a pipeline, and the rotor of the steam turbine is impacted to rotate at a high speed, so that the steam turbine drives a generator set to generate electricity, and finally, the electricity generated by the generator set is input into a power grid system through a transformer, for example, the Chinese patent with the application number of 201711459238.0. Therefore, the steam turbine plays an important role in the process, and the energy conversion of the steam turbine directly affects the generated energy of a final generating set, so that the development of a thermal power transmission system with high conversion efficiency is significant for the whole thermal power system in China, and the achievement has positive effects and effects on environmental protection, energy conservation and emission reduction.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the step-in turbine thermal power transmission system with reasonable design, low energy loss and high efficiency and the working method thereof, which improve the use efficiency of steam of the thermal power system and have important roles in energy conservation, emission reduction and environmental protection.
The invention solves the problems by adopting the following technical scheme: the low-energy-loss efficient step-entering turbine thermal power transmission system is characterized by comprising a first-stage turbine transmission device, a second-stage turbine transmission device, a third-stage turbine transmission device, a fourth-stage turbine transmission device, a transition rotary table, an external electric transmission shaft, a turbine main shaft, a steam pressure controller, a turbine transmission steam pipe, a main steam pipe and a fourth-stage turbine low-pressure water outlet device; the first-stage turbine transmission device, the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device are sequentially and rotatably connected through a turbine main shaft, and the turbine main shaft is connected with an external electric transmission shaft through a transition rotary table; the steam pressure controller is respectively fixed on the first-stage turbine transmission device, the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device; one side of the first-stage turbine transmission device is fixed with the main steam pipe, the other side of the first-stage turbine transmission device is connected with the second-stage turbine transmission device through a turbine transmission steam pipe, the second-stage turbine transmission device is connected with the third-stage turbine transmission device through a turbine transmission steam pipe, one side of the fourth-stage turbine transmission device is connected with the third-stage turbine transmission device through a turbine transmission steam pipe, and the other side of the fourth-stage turbine transmission device is fixed with the fourth-stage turbine low-pressure water outlet device.
Further, the first-stage turbine transmission device comprises turbine blades, a turbine transmission device cylinder body, a first waterproof sealing ring, a turbine blade fastening ring, a positioning bolt and a second waterproof sealing ring; one side of the turbine transmission device cylinder body is connected with four main steam pipes, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a second water-proof sealing ring; two symmetrically distributed turbine transmission steam pipes are connected to the other side of the turbine transmission device cylinder body, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a first water outlet prevention sealing ring; the turbine blade is connected with the turbine blade fastening ring; the turbine blade fastening ring is connected with the turbine main shaft through the positioning bolt.
Further, the four-stage turbine transmission device comprises turbine blades, a turbine transmission device cylinder body, a turbine blade fastening ring, a positioning bolt, a second water outlet prevention sealing ring, a four-stage turbine low-pressure water outlet device and a four-stage turbine transmission device sealing ring; one side of the turbine transmission device cylinder body is connected with four turbine transmission steam pipes, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a second waterproof sealing ring; the other side of the turbine transmission device cylinder body is connected with two symmetrically distributed four-stage turbine low-pressure water outlet devices, and the middle part of the turbine low-pressure water outlet device is connected with a turbine main shaft through a four-stage turbine transmission device sealing ring; the turbine blade is connected with the turbine blade fastening ring; the turbine blade fastening ring is connected with the turbine main shaft through the positioning bolt.
Further, the steam pressure controller comprises a steam pressure control head and a pressure controller transition pipe, and the side surfaces of the primary turbine transmission device, the secondary turbine transmission device, the tertiary turbine transmission device and the quaternary turbine transmission device are all connected with the steam pressure control head through the pressure controller transition pipe.
Further, the steam pressure control head comprises an upper water locking boss, a first spring locking table, a second spring locking table, a lower water locking boss, an upper water locking boss rubber ring, a lower support plate, a pressure control spring and an upper support plate; the upper side of the upper supporting plate is connected with a transition pipe of the pressure controller, the lower side of the upper supporting plate is connected with a second spring locking table through a first spring locking table, and is also connected with a water locking boss rubber ring through a water locking boss; the upper side of the lower supporting plate is connected with the lower water locking boss rubber ring through the lower water locking boss, and is also connected with the second spring locking table through the first spring locking table; the spring locking platform No. one between lower backup pad and the upper backup pad is through accuse pressure spring coupling.
Further, the low-pressure water outlet device of the four-stage turbine comprises a transition rotary table, a rotary bolt and a rotatable sealing plate; one end of the transition rotary table is connected with the turbine transmission device cylinder body, and the other end of the transition rotary table is connected with the rotatable sealing plate through a rotary bolt; the turbine transmission device cylinder body is provided with a low-pressure steam hole in a penetrating mode.
Further, the second water-proof sealing ring comprises a rubber sealing ring, a locking gasket and a sealing locking nut; one side of the locking gasket is connected with the turbine transmission device cylinder body through a rubber sealing ring, and the other side of the locking gasket is in contact with a sealing locking nut.
The working method of the low-energy-loss efficient step-entering turbine thermal power transmission system is as follows: when the steam generated by the thermal power system enters a first-stage turbine transmission device through a main steam pipe in a low vapor pressure state, turbine blades in the first-stage turbine transmission device are pushed to rotate, the turbine blades drive turbine blade fastening rings to rotate at a high speed along with a turbine main shaft, so that a transmission effect is achieved, because the steam pressure in a cylinder body of the turbine transmission device is not high, the steam enters a second-stage turbine transmission device through the turbine transmission steam pipe and sequentially enters a third-stage turbine transmission device and a fourth-stage turbine transmission device, the working process of the steam in the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device is the same as that in the first-stage turbine transmission device, namely, the steam is also acted on the turbine blades to drive the turbine blade fastening rings to rotate at a high speed along with the turbine main shaft, and finally, the low-pressure steam is pushed to rotate from a low-pressure steam hole to be discharged; when the steam generated by the thermal power system enters the first-stage turbine transmission device through the main steam pipe, turbine blades in the first-stage turbine transmission device are pushed to rotate, and the turbine blades drive the turbine blade fastening rings to rotate at a high speed along with the turbine main shaft, so that the transmission effect is achieved; the high-pressure steam of the second-stage turbine transmission device sequentially enters the third-stage turbine transmission device and the fourth-stage turbine transmission device, the working process of the high-pressure steam in the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device is the same as that of the first-stage turbine transmission device, and finally the high-pressure steam in the fourth-stage turbine transmission device is discharged by the fourth-stage turbine low-pressure water outlet device and a steam pressure control head thereon; i.e. one operation is completed.
In addition, in the high vapor pressure state, the first-stage turbine transmission device, the second-stage turbine transmission device and the third-stage turbine transmission device are all high-pressure gas, and the vapor pressure of the gas in the fourth-stage turbine transmission device is slightly lower.
Compared with the prior art, the invention has the following advantages and effects: the low-energy-loss high-efficiency step-entering turbine thermal power transmission system can realize steam-electric energy conversion of a turbine mechanism in the thermal power system through a first-stage turbine transmission device, a second-stage turbine transmission device, a third-stage turbine transmission device, a fourth-stage turbine transmission device, a steam pressure control head and other devices, and meanwhile, the step-entering turbine transmission mechanism can carry out step-by-step adjustment on the pressure of steam, so that low-pressure steam after primary power generation is converted into high-pressure steam again and enters a subsequent secondary turbine transmission device again to realize secondary power generation, the use efficiency of the steam of the thermal power system is improved to a great extent, and the thermal power system has wider application value and popularization prospect and plays an important role in energy conservation, emission reduction and environmental protection.
Drawings
Fig. 1 is a schematic diagram of a front view structure of an embodiment of the present invention.
Fig. 2 is a schematic top view of an embodiment of the present invention.
Fig. 3 is a schematic left-view structure of an embodiment of the present invention.
FIG. 4 is a schematic cross-sectional view of a primary turbine transmission of an embodiment of the present invention.
FIG. 5 is a schematic cross-sectional view of a four-stage turbine transmission of an embodiment of the present invention.
Fig. 6 is a schematic structural view of a vapor pressure control head according to an embodiment of the present invention.
FIG. 7 is a schematic cross-sectional view of a low pressure water outlet device for a four stage turbine according to an embodiment of the present invention.
Fig. 8 is a schematic cross-sectional view of a second waterproof seal ring according to an embodiment of the present invention.
In the figure: 1. the turbine engine comprises a first-stage turbine transmission device 2, a second-stage turbine transmission device 3, a third-stage turbine transmission device 4, a fourth-stage turbine transmission device 5, a transition rotary table 6, an external electric transmission shaft 7, a turbine main shaft 8, a steam pressure controller 9, a turbine transmission steam pipe 10, a main steam pipe 11, a steam pressure control head 12, a pressure controller transition pipe 13, turbine blades 14, a turbine transmission device cylinder body 15, a first water outlet prevention sealing ring 16, a turbine blade fastening ring 17, a positioning bolt 18, a second water outlet prevention sealing ring 19, a fourth-stage turbine low-pressure water outlet device 20, a fourth-stage turbine transmission device sealing ring 21, an upper water locking boss 22, a first spring locking table 23, a second spring locking table 24, a lower water locking boss 25, an upper water locking boss rubber ring 26, a lower water locking boss rubber ring 27, a lower support plate 28, a pressure control spring 29, an upper support plate 30, a transition rotary bolt 31, a rotary bolt 32, a rotatable sealing plate 33, a low pressure steam hole 34, a sealing ring 35, a sealing ring 36 and a sealing nut.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples
Referring to fig. 1 to 8, a low-energy-loss efficient step-in turbine thermal power transmission system comprises a first-stage turbine transmission device 1, a second-stage turbine transmission device 2, a third-stage turbine transmission device 3, a fourth-stage turbine transmission device 4, a transition rotary table 5, an external power transmission shaft 6, a turbine main shaft 7, a steam pressure controller 8, a turbine transmission steam pipe 9, a main steam pipe 10 and a fourth-stage turbine low-pressure water outlet device 19; the first-stage turbine transmission device 1, the second-stage turbine transmission device 2, the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4 are sequentially and rotatably connected through a turbine main shaft 7, and the turbine main shaft 7 is connected with an external power transmission shaft 6 through a transition rotary table 5; the steam pressure controller 8 is respectively fixed on the first-stage turbine transmission device 1, the second-stage turbine transmission device 2, the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4; one side of the primary turbine transmission device 1 is fixed with a main steam pipe 10, the other side of the primary turbine transmission device 1 is connected with the secondary turbine transmission device 2 through a turbine transmission steam pipe 9, the secondary turbine transmission device 2 is connected with the tertiary turbine transmission device 3 through a turbine transmission steam pipe 9, one side of the quaternary turbine transmission device 4 is connected with the tertiary turbine transmission device 3 through a turbine transmission steam pipe 9, and the other side of the quaternary turbine transmission device 4 is fixed with a quaternary turbine low-pressure water outlet device 19.
The primary turbine transmission device 1 comprises turbine blades 13, a turbine transmission device cylinder 14, a first water-proof sealing ring 15, a turbine blade fastening ring 16, a positioning bolt 17 and a second water-proof sealing ring 18; one side of the turbine transmission device cylinder body 14 is connected with four main steam pipes 10, and the middle part is connected with the turbine main shaft 7 through a second water-proof sealing ring 18; the other side of the turbine transmission device cylinder 14 is connected with two symmetrically distributed turbine transmission steam pipes 9, and the middle part is connected with the turbine main shaft 7 through a first water-proof sealing ring 15; the turbine blade 13 is connected with a turbine blade fastening ring 16; the turbine blade fastening ring 16 is connected to the turbine spindle 7 by means of a locating pin 17.
The four-stage turbine transmission device 4 comprises turbine blades 13, a turbine transmission device cylinder 14, a turbine blade fastening ring 16, a positioning bolt 17, a second water-proof sealing ring 18, a four-stage turbine low-pressure water outlet device 19 and a four-stage turbine transmission device sealing ring 20; one side of the turbine transmission device cylinder 14 is connected with four turbine transmission steam pipes 9, and the middle part is connected with the turbine main shaft 7 through a second water-proof sealing ring 18; the other side of the turbine transmission device cylinder body 14 is connected with two symmetrically distributed four-stage turbine low-pressure water outlet devices 19, and the middle part of the turbine low-pressure water outlet devices is connected with the turbine main shaft 7 through four-stage turbine transmission device sealing rings 20; the turbine blade 13 is connected with a turbine blade fastening ring 16; the turbine blade fastening ring 16 is connected to the turbine spindle 7 by means of a locating pin 17.
The steam pressure controller 8 comprises a steam pressure control head 11 and a pressure controller transition pipe 12, and the side surfaces of the primary turbine transmission device 1, the secondary turbine transmission device 2, the tertiary turbine transmission device 3 and the quaternary turbine transmission device 4 are all connected with the steam pressure control head 11 through the pressure controller transition pipe 12.
The steam pressure control head 11 comprises an upper water locking boss 21, a first spring locking table 22, a second spring locking table 23, a lower water locking boss 24, an upper water locking boss rubber ring 25, a lower water locking boss rubber ring 26, a lower support plate 27, a pressure control spring 28 and an upper support plate 29; the upper side of the upper supporting plate 29 is connected with the pressure controller transition pipe 12, the lower side of the upper supporting plate 29 is connected with the second spring locking table 23 through the first spring locking table 22 and is also connected with the upper water locking boss rubber ring 25 through the upper water locking boss 21; the upper side of the lower supporting plate 27 is connected with a lower water locking boss rubber ring 26 through a lower water locking boss 24 and is also connected with a second spring locking table 23 through a first spring locking table 22; the spring locking table 22 between the lower support plate 27 and the upper support plate 29 is connected by a pressure control spring 28.
The four-stage turbine low-pressure water outlet device 19 comprises a transition rotary table 30, a rotary bolt 31 and a rotatable sealing plate 32; one end of the transition rotary table 30 is connected with the turbine transmission device cylinder 14, and the other end of the transition rotary table 30 is connected with a rotatable sealing plate 32 through a rotary bolt 31; the turbine transmission cylinder 14 is provided with a low pressure steam hole 33 therethrough.
The second water-proof sealing ring 18 comprises a rubber sealing ring 34, a locking gasket 35 and a sealing locking nut 36; one side of the locking washer 35 is connected to the worm gear cylinder 14 by a rubber seal 34, and the other side of the locking washer 35 is in contact with a sealing lock nut 36.
The working method of the low-energy-loss high-efficiency step-entering turbine thermal power transmission system comprises the following steps of:
in the low vapor pressure state, steam generated by the thermal power system enters the first-stage turbine transmission device 1 through the main steam pipe 10, so that turbine blades 13 in the first-stage turbine transmission device 1 are pushed to rotate, the turbine blades 13 drive the turbine blade fastening rings 16 to rotate together with the turbine main shafts 7 at a high speed, thereby playing a transmission role, because the steam pressure in the turbine transmission device cylinder 14 is not high, the steam enters the second-stage turbine transmission device 2 through the turbine transmission steam pipe 9 and sequentially enters the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4, the working process of the steam in the second-stage turbine transmission device 2, the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4 is the same as that in the first-stage turbine transmission device 1, namely, the steam is also acted on the turbine blades 13 to drive the turbine blade fastening rings 16 to rotate together with the turbine main shafts 7 at a high speed, and finally, the low-pressure steam pushes the rotatable sealing plate 32 to be discharged from the low-pressure steam hole 33.
When in a high vapor pressure state, steam generated by a thermal power system enters a first-stage turbine transmission device 1 through a main steam pipe 10, turbine blades 13 in the first-stage turbine transmission device 1 are pushed to rotate, the turbine blades 13 drive a turbine blade fastening ring 16 to rotate at a high speed together with a turbine main shaft 7, so that a transmission effect is achieved, because the steam pressure in a turbine transmission device cylinder 14 is high, part of the steam enters a second-stage turbine transmission device 2 through a turbine transmission steam pipe 9, at the moment, the steam entering the second-stage turbine transmission device 2 is still high-pressure steam, the other part of the steam acts on a steam pressure control head 11 on the first-stage turbine transmission device 1, and because of the extrusion and sealing effects of a pressure control spring 28, an upper water locking boss rubber ring 25 and a lower water locking boss rubber ring 26 arranged on the steam pressure control head 11, the steam cannot leak when the steam is lower than a set value of the pressure control spring 28, and the high-pressure steam is also promoted to enter the second-stage turbine transmission device 2 through the turbine transmission steam pipe 9; then the high-pressure steam of the second-stage turbine transmission device 2 sequentially enters the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4, the working process of the high-pressure steam in the second-stage turbine transmission device 2, the third-stage turbine transmission device 3 and the fourth-stage turbine transmission device 4 is the same as that in the first-stage turbine transmission device 1, and finally the high-pressure steam in the fourth-stage turbine transmission device 4 is discharged by the fourth-stage turbine low-pressure water outlet device 19 and the steam pressure control head 11 on the fourth-stage turbine low-pressure water outlet device; i.e. one operation is completed. In the high vapor pressure state, the high-pressure gas is in the first-stage turbine transmission device 1, the second-stage turbine transmission device 2 and the third-stage turbine transmission device 3, and the vapor pressure of the gas in the fourth-stage turbine transmission device 4 is slightly lower.
Although the present invention is described with reference to the above embodiments, it should be understood that the invention is not limited to the embodiments described above, but is capable of modification and variation without departing from the spirit and scope of the present invention.
Claims (6)
1. The low-energy-loss efficient step-entering turbine thermal power transmission system is characterized by comprising a first-stage turbine transmission device, a second-stage turbine transmission device, a third-stage turbine transmission device, a fourth-stage turbine transmission device, a transition rotary table, an external electric transmission shaft, a turbine main shaft, a steam pressure controller, a turbine transmission steam pipe, a main steam pipe and a fourth-stage turbine low-pressure water outlet device; the first-stage turbine transmission device, the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device are sequentially and rotatably connected through a turbine main shaft, and the turbine main shaft is connected with an external electric transmission shaft through a transition rotary table; the steam pressure controller is respectively fixed on the first-stage turbine transmission device, the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device; one side of the primary turbine transmission device is fixed with the main steam pipe, the other side of the primary turbine transmission device is connected with the secondary turbine transmission device through a turbine transmission steam pipe, the secondary turbine transmission device is connected with the tertiary turbine transmission device through a turbine transmission steam pipe, one side of the quaternary turbine transmission device is connected with the tertiary turbine transmission device through a turbine transmission steam pipe, and the other side of the quaternary turbine transmission device is fixed with the quaternary turbine low-pressure water outlet device;
the side surfaces of the primary turbine transmission device, the secondary turbine transmission device, the tertiary turbine transmission device and the quaternary turbine transmission device are connected with the steam pressure control head through the pressure controller transition pipe;
the steam pressure control head comprises an upper water locking boss, a first spring locking table, a second spring locking table, a lower water locking boss, an upper water locking boss rubber ring, a lower support plate, a pressure control spring and an upper support plate; the upper side of the upper supporting plate is connected with a transition pipe of the pressure controller, the lower side of the upper supporting plate is connected with a second spring locking table through a first spring locking table, and is also connected with a water locking boss rubber ring through a water locking boss; the upper side of the lower supporting plate is connected with the lower water locking boss rubber ring through the lower water locking boss, and is also connected with the second spring locking table through the first spring locking table; the first spring locking platform between the lower supporting plate and the upper supporting plate is connected through a pressure control spring;
the low-pressure water outlet device of the four-stage turbine comprises a transition rotary table, a rotary bolt and a rotatable sealing plate; one end of the transition rotary table is connected with the turbine transmission device cylinder body, and the other end of the transition rotary table is connected with the rotatable sealing plate through a rotary bolt; the turbine transmission device cylinder body is provided with a low-pressure steam hole in a penetrating mode.
2. The low energy efficient step entry turbine thermal power transmission system of claim 1, wherein the primary turbine transmission comprises turbine blades, a turbine transmission cylinder, a first water-proof seal ring, a turbine blade fastening ring, a locating bolt, and a second water-proof seal ring; one side of the turbine transmission device cylinder body is connected with four main steam pipes, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a second water-proof sealing ring; two symmetrically distributed turbine transmission steam pipes are connected to the other side of the turbine transmission device cylinder body, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a first water outlet prevention sealing ring; the turbine blade is connected with the turbine blade fastening ring; the turbine blade fastening ring is connected with the turbine main shaft through the positioning bolt.
3. The low energy efficient step turbine thermal power transmission system according to claim 1, wherein the four-stage turbine transmission comprises turbine blades, a turbine transmission cylinder, a turbine blade fastening ring, a locating bolt, a second water-out-preventing sealing ring, a four-stage turbine low-pressure water-out device and a four-stage turbine transmission sealing ring; one side of the turbine transmission device cylinder body is connected with four turbine transmission steam pipes, and the middle part of the turbine transmission device cylinder body is connected with a turbine main shaft through a second waterproof sealing ring; the other side of the turbine transmission device cylinder body is connected with two symmetrically distributed four-stage turbine low-pressure water outlet devices, and the middle part of the turbine low-pressure water outlet device is connected with a turbine main shaft through a four-stage turbine transmission device sealing ring; the turbine blade is connected with the turbine blade fastening ring; the turbine blade fastening ring is connected with the turbine main shaft through the positioning bolt.
4. The low energy efficient step turbine thermal power transmission system according to claim 2 or 3, wherein the second water-out preventing sealing ring comprises a rubber sealing ring, a locking gasket and a sealing locking nut; one side of the locking gasket is connected with the turbine transmission device cylinder body through a rubber sealing ring, and the other side of the locking gasket is in contact with a sealing locking nut.
5. A method of operating a low energy efficient step turbine thermal power transmission system according to any one of claims 1 to 4, wherein the method of operation is as follows: when the steam generated by the thermal power system enters a first-stage turbine transmission device through a main steam pipe in a low vapor pressure state, turbine blades in the first-stage turbine transmission device are pushed to rotate, the turbine blades drive turbine blade fastening rings to rotate at a high speed along with a turbine main shaft, so that a transmission effect is achieved, because the steam pressure in a cylinder body of the turbine transmission device is not high, the steam enters a second-stage turbine transmission device through the turbine transmission steam pipe and sequentially enters a third-stage turbine transmission device and a fourth-stage turbine transmission device, the working process of the steam in the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device is the same as that in the first-stage turbine transmission device, namely, the steam is also acted on the turbine blades to drive the turbine blade fastening rings to rotate at a high speed along with the turbine main shaft, and finally, the low-pressure steam is pushed to rotate from a low-pressure steam hole to be discharged; when the steam generated by the thermal power system enters the first-stage turbine transmission device through the main steam pipe in a high vapor pressure state, turbine blades in the first-stage turbine transmission device are pushed to rotate, and the turbine blades drive the turbine blade fastening ring to rotate at a high speed along with the turbine main shaft, so that a transmission effect is achieved; the high-pressure steam of the second-stage turbine transmission device sequentially enters the third-stage turbine transmission device and the fourth-stage turbine transmission device, the working process of the high-pressure steam in the second-stage turbine transmission device, the third-stage turbine transmission device and the fourth-stage turbine transmission device is the same as that of the first-stage turbine transmission device, and finally the high-pressure steam in the fourth-stage turbine transmission device is discharged by the fourth-stage turbine low-pressure water outlet device and a steam pressure control head thereon; i.e. one operation is completed.
6. The method of claim 5, wherein the high-pressure gas is in the first-stage turbine transmission, the second-stage turbine transmission and the third-stage turbine transmission in a high vapor pressure state, and the vapor pressure of the gas in the fourth-stage turbine transmission is lower than the vapor pressure of the gas in the first-stage turbine transmission, the second-stage turbine transmission and the third-stage turbine transmission.
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