CN112412556A - BEST dual-machine system - Google Patents
BEST dual-machine system Download PDFInfo
- Publication number
- CN112412556A CN112412556A CN202011410077.8A CN202011410077A CN112412556A CN 112412556 A CN112412556 A CN 112412556A CN 202011410077 A CN202011410077 A CN 202011410077A CN 112412556 A CN112412556 A CN 112412556A
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- steam turbine
- turbine main
- main body
- connecting ring
- main part
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000000741 silica gel Substances 0.000 claims description 17
- 229910002027 silica gel Inorganic materials 0.000 claims description 17
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003303 reheating Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F01K13/00—General layout or general methods of operation of complete plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- 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
- F01K21/00—Steam engine plants not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses a BEST dual-machine system, which comprises an in-plant power grid, wherein the in-plant power grid is connected with a connector through a first wire, one end of the connector, far away from the first wire, is connected with a second wire, the second wire is connected with an asynchronous generator, the asynchronous generator is connected with a reheater on the side wall of a small steam turbine main body through a connecting pipe, one part of the reheater is positioned in the small steam turbine main body, the inside of the small steam turbine main body is hollow, the upper end of the small steam turbine main body is provided with a steam inlet pipe, the steam inlet pipe is fixedly connected with the small steam turbine main body through a first connecting ring and a first fixing bolt screwed on the first connecting ring, a high-pressure cylinder, a middle-pressure cylinder and a low-pressure cylinder are sequentially arranged at the inner bottom of the small steam turbine main body from left to right, and balance pipes; the invention solves the problems of low power conversion efficiency and complex structure of the traditional thermoelectric conversion system.
Description
Technical Field
The invention relates to the technical field of thermoelectric conversion, in particular to a BEST dual-machine system.
Background
With the high-speed growth of economy in China, the restriction factors in the aspects of energy and resource shortage and the like are gradually reflected, and under the background, the development of clean coal power generation technology is the key for solving the problems.
The traditional thermoelectric conversion system on the market has low power conversion efficiency and a complex structure, and therefore, a BEST dual-machine system is provided.
Disclosure of Invention
The present invention provides a BEST dual-machine system to solve the problems of low power conversion efficiency and complex structure of the conventional thermoelectric conversion system in the market proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a BEST dual-machine system comprises a factory power grid, wherein the factory power grid is connected with a connector through a first wire, one end, far away from the first wire, of the connector is connected with a second wire, the second wire is connected with an asynchronous generator, the asynchronous generator is connected with a reheater on the side wall of a small steam turbine main body through a connecting pipe, one part of the reheater is located inside the small steam turbine main body, the small steam turbine main body is hollow, a steam inlet pipe is arranged at the upper end of the small steam turbine main body, the steam inlet pipe is fixedly connected with the small steam turbine main body through a first fixing bolt in a screwing mode, the inner bottom of the small steam turbine main body is sequentially provided with a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder from left to right, the upper inner wall and the lower inner wall of the small steam turbine main body are fixedly connected with balance pipes, and the balance pipes are located between, and balance pipe middle part position is provided with the breach, a lateral wall that the reheater was kept away from to little steam turbine main part is provided with the inlet tube, it has the water pump to advance water piping connection, it is fixed with little steam turbine main part spiro union that the second fixing bolt of spiro union is gone up through second go-between cooperation second go-between to the inlet tube, little steam turbine main part bottom is provided with condenser and heater.
As a further scheme of the invention, a first leakage-proof silica gel is arranged between the first connecting ring and the connecting part of the small steam turbine main body, and the first leakage-proof silica gel is matched with the first connecting ring in size and specification.
As a further scheme of the invention, a second leak-proof silica gel is arranged between the second connecting ring and the connecting position of the small steam turbine main body, and the second leak-proof silica gel is matched with the second connecting ring in size and specification.
As a further scheme of the invention, a filter screen is arranged at the steam inlet of the steam inlet pipe.
As a further scheme of the invention, one end of the condenser, which is far away from the small steam turbine main body, is connected with a condensing pipe in series, one end of the heater, which is far away from the small steam turbine main body, is connected with a steam outlet pipe in series, and the condensing pipe and the steam outlet pipe are consistent in size and specification.
As a further aspect of the present invention, four sets of the first fixing bolts and the second fixing bolts are provided, and the four sets of the first fixing bolts and the four sets of the second fixing bolts are symmetrically distributed along the circumference of the surface of the corresponding first connecting ring and the surface of the corresponding second connecting ring.
Compared with the prior art, the invention has the beneficial effects that: the invention is characterized in that the water pump is arranged, the water pump guides water into the small steam turbine main body through the water inlet pipe, the water inlet pipe is fixedly connected with the small steam turbine main body through the second connecting ring matched with the second fixing bolt in a threaded manner, and the second leak-proof silica gel is also arranged between the second connecting ring and the connecting part of the small steam turbine main body, so that the water pump can not leak when guiding water into the small steam turbine main body, the whole sealing performance is ensured, the efficiency is improved, the small steam turbine main body is started, the high pressure cylinder, the intermediate pressure cylinder and the low pressure cylinder convert water into water vapor, wherein the balance pipe is arranged between the intermediate pressure cylinder and the low pressure cylinder, the balance pipe throttles the water vapor, the loss is reduced, the thermodynamic cycle efficiency can be improved, the steam source of the small steam turbine main body exhausts the high pressure cylinder, the part of the steam can not enter a reheating system any more, thereby reduce reheating system's cost, because the extraction temperature is low, also reduced relevant extraction pipeline, the valve, the material grade of heater, the pipeline has been practiced thrift, the manufacturing cost of valve and equipment, partly steam cooperation admission pipe and condenser cooperation condenser pipe generate water, guarantee the reutilization, and partly steam can regard as another part to use through the heating of heater, wherein, it is accurate to carry the heating of inside surplus steam through the reheater at little steam turbine to persist, lead to asynchronous generator with the steam after the heating through the connecting pipe, the electric energy that the asynchronous generator of steam drive after the heating sent leads to the in-plant electric wire netting through first electric wire and second electric wire, reducible station service power rate improves the selling electric income of power plant.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view of the point A in the present invention;
FIG. 3 is an enlarged view of the point B of the present invention;
FIG. 4 is a schematic view of the internal structure of a small steam turbine main body according to the present invention.
In the figure: 100. a small steam turbine main body; 101. a condenser; 102. a condenser tube; 103. a heater; 104. a steam outlet pipe; 105. a steam inlet pipe; 106. a filter screen; 107. a first connecting ring; 108. a first leak-proof silica gel; 109. a first fixing bolt; 200. a high pressure cylinder; 201. an intermediate pressure cylinder; 202. a low pressure cylinder; 300. a balance tube; 301. a water inlet pipe; 302. a water pump; 303. a second connection ring; 304. a second fixing bolt; 305. second leak-proof silica gel; 400. a reheater; 500. a power grid in the plant; 501. a first electric wire; 502. a connector; 503. a second electric wire; 600. an asynchronous generator; 601. and (4) connecting the pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a BEST double-machine system comprises a factory power grid 500, the factory power grid 500 is connected with a connector 502 through a first wire 501, one end of the connector 502 far away from the first wire 501 is connected with a second wire 503, the second wire 503 is connected with an asynchronous generator 600, the asynchronous generator 600 is connected with a reheater 400 on the side wall of a small steam turbine main body 100 through a connecting pipe 601, a part of the reheater 400 is positioned inside the small steam turbine main body 100, the small steam turbine main body 100 is hollow, the upper end of the small steam turbine main body 100 is provided with a steam inlet pipe 105, the steam inlet position of the steam inlet pipe 105 is provided with a filter screen 106, the steam inlet pipe 105 is screwed and fixed with the small steam turbine main body 100 through a first connecting ring 107 and a first fixing bolt 109 screwed on the first connecting ring 107 in a matching manner, a first leakage-proof silica gel 108 is arranged between the first connecting ring 107 and the small steam turbine main body 100, and the first leakage-proof silica gel 108 is, the high-pressure cylinder 200, the intermediate-pressure cylinder 201 and the low-pressure cylinder 202 are sequentially arranged at the bottom of the small steam turbine main body 100 from left to right, the balance pipe 300 is fixedly connected to the upper inner wall and the lower inner wall of the small steam turbine main body 100, the balance pipe 300 is arranged between the intermediate-pressure cylinder 201 and the low-pressure cylinder 202, a gap is formed in the middle of the balance pipe 300, a water inlet pipe 301 is arranged on one side wall, away from the reheater 400, of the small steam turbine main body 100, the water inlet pipe 301 is connected with a water pump 302, the water inlet pipe 301 is matched with a second connecting ring 303 through a second connecting ring 303 to be in screwed connection with the small steam turbine main body 100, four groups of first fixing bolts 109 and four groups of second fixing bolts 304 are arranged, and the four groups of first fixing bolts 109 and the four groups of second fixing.
A second leak-proof silica gel 305 is arranged between the joint of the second connecting ring 303 and the small steam turbine main body 100, the second leak-proof silica gel 305 is matched with the second connecting ring 303 in size and specification, a condenser 101 and a heater 103 are arranged at the bottom of the small steam turbine main body 100, a condenser pipe 102 is connected in series at one end, away from the small steam turbine main body 100, of the condenser 101, a steam outlet pipe 104 is connected in series at one end, away from the small steam turbine main body 100, of the heater 103, and the size and specification of the condenser pipe 102 are consistent with that of the steam.
By arranging the water pump 302, the water pump 302 guides water into the small steam turbine main body 100 through the water inlet pipe 301, because the water inlet pipe 301 is screwed and fixed with the small steam turbine main body 100 through the second connecting ring 303 in cooperation with the second fixing bolt 304, and the second leak-proof silica gel 305 is further arranged between the second connecting ring 303 and the joint of the small steam turbine main body 100, the water pump 302 is ensured not to leak when guiding water into the small steam turbine main body 100, the whole sealing performance is ensured, the efficiency is improved, the small steam turbine main body 100 is started, the high pressure cylinder 200, the intermediate pressure cylinder 201 and the low pressure cylinder 202 convert water into water vapor, wherein the balance pipe 300 is arranged between the intermediate pressure cylinder 201 and the low pressure cylinder 202, the balance pipe 300 throttles the water vapor, the loss is reduced, the thermal cycle efficiency can be improved, the vapor source of the small steam turbine main body 100 is the high pressure cylinder 200, and, the steam flow entering the reheater 400 can be remarkably reduced, the heat exchange area of the reheater 400 can be reduced, thereby reducing the manufacturing cost of the reheating system, because the extraction temperature is low, the material grade of related extraction pipelines, valves and heaters 103 is also reduced, the manufacturing cost of the pipelines, the valves and equipment is saved, a part of water vapor is matched with the steam inlet pipe 105 and the condenser 101 to be matched with the condenser pipe 102 to generate water, the secondary utilization is ensured, and the part of water vapor can be used as the other part by heating the heater 103, wherein the excessive steam remaining in the small turbine main body 100 is heated by the reheater 400, the heated water vapor is guided into the asynchronous generator 600 through the connecting pipe 601, and the electric energy generated by the asynchronous generator 600 driven by the heated water vapor is guided into the power grid 500 in the plant through the first electric wire 501 and the second electric wire 503, so that the plant power consumption rate can be reduced, and the electricity selling income of the power plant can be improved.
The working principle is as follows: for the BEST double-machine system, when in use, firstly, the water pump 302 is started, the water pump 302 leads water into the small steam turbine main body 100 through the water inlet pipe 301, because the water inlet pipe 301 is screwed and fixed with the small steam turbine main body 100 through the second connecting ring 303 in cooperation with the second fixing bolt 304, and the second leak-proof silica gel 305 is also arranged between the connecting part of the second connecting ring 303 and the small steam turbine main body 100, the water pump 302 is ensured not to leak when leading water into the small steam turbine main body 100, the whole sealing performance is ensured, the efficiency is improved, the small steam turbine main body 100 is started, the high pressure cylinder 200, the intermediate pressure cylinder 201 and the low pressure cylinder 202 convert water into steam, wherein the balance pipe 300 is arranged between the intermediate pressure cylinder 201 and the low pressure cylinder 202, the balance pipe 300 throttles the steam, the loss is reduced, the thermal cycle efficiency is improved, the steam source of the small steam turbine main body 100, the steam will not enter the reheating system any more, the steam flow entering the reheater 400 can be obviously reduced, the heat exchange area of the reheater 400 is reduced, thereby the manufacturing cost of the reheating system is reduced, because the extraction temperature is low, the material grade of the relevant extraction pipeline, valve and heater 103 is also reduced, the manufacturing cost of the pipeline, valve and equipment is saved, a part of steam cooperates with the steam inlet pipe 105 and the condenser 101 to cooperate with the condenser pipe 102 to generate water, secondary utilization is ensured, and a part of steam can be used as another part by heating of the heater 103, wherein, the surplus steam remained in the small steam turbine main body 100 is required to heat the reheater 400, the heated steam is led into the asynchronous generator 600 through the connecting pipe 601, the electric energy generated by the asynchronous generator 600 driven by the heated steam is led into the power grid 500 in the factory through the first electric wire 501 and the second electric wire 503, the power consumption rate of the plant can be reduced, and the electricity selling income of the power plant can be improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A BEST dual-machine system, comprising an in-plant power grid (500), characterized in that: the utility model provides a steam turbine, including power grid (500) in factory, connector (502) are connected with connector (502) through first electric wire (501), the one end that first electric wire (501) was kept away from in connector (502) is connected with second electric wire (503), second electric wire (503) are connected with asynchronous generator (600), asynchronous generator (600) are connected with reheater (400) on little steam turbine main part (100) lateral wall through connecting pipe (601), reheater (400) some is located inside little steam turbine main part (100), inside cavity form that is of little steam turbine main part (100), little steam turbine main part (100) upper end is provided with steam inlet pipe (105), steam inlet pipe (105) are fixed with little steam turbine main part (100) spiro union through first fixing bolt (109) on first connecting ring (107) of first go up of first connecting ring (107) cooperation, the bottom has set gradually high pressure cylinder (200) from the left side to the right side in little steam turbine main part (100), Intermediate pressure jar (201) and low pressure jar (202), be located inner wall fixedly connected with balance pipe (300) about little steam turbine main part (100), balance pipe (300) are located between intermediate pressure jar (201) and low pressure jar (202), and balance pipe (300) middle part position is provided with the breach, a lateral wall that reheater (400) was kept away from in little steam turbine main part (100) is provided with inlet tube (301), inlet tube (301) are connected with water pump (302), second fixing bolt (304) and little steam turbine main part (100) spiro union are fixed on inlet tube (301) through second go-between (303) cooperation second go-between (303), little steam turbine main part (100) bottom is provided with condenser (101) and heater (103).
2. The BEST dual-machine system according to claim 1, wherein: first leak protection silica gel (108) are provided with between first connecting ring (107) and little steam turbine main part (100) junction, first leak protection silica gel (108) and first connecting ring (107) size specification looks adaptation.
3. The BEST dual-machine system according to claim 1, wherein: and a second leak-proof silica gel (305) is arranged between the second connecting ring (303) and the joint of the small steam turbine main body (100), and the second leak-proof silica gel (305) is matched with the second connecting ring (303) in size and specification.
4. The BEST dual-machine system according to claim 1, wherein: a filter screen (106) is arranged at the steam inlet of the steam inlet pipe (105).
5. The BEST dual-machine system according to claim 1, wherein: the condenser (101) is far away from one end of the small steam turbine main body (100) and is connected with a condensing pipe (102) in series, the heater (103) is far away from one end of the small steam turbine main body (100) and is connected with a steam outlet pipe (104) in series, and the condensing pipe (102) is consistent with the steam outlet pipe (104) in size and specification.
6. The BEST dual-machine system according to claim 1, wherein: the first fixing bolts (109) and the second fixing bolts (304) are respectively provided with four groups, and the four groups of the first fixing bolts (109) and the four groups of the second fixing bolts (304) are respectively distributed along the circumference of the surface of the corresponding first connecting ring (107) and the second connecting ring (303) symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410077.8A CN112412556A (en) | 2020-12-03 | 2020-12-03 | BEST dual-machine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410077.8A CN112412556A (en) | 2020-12-03 | 2020-12-03 | BEST dual-machine system |
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| Publication Number | Publication Date |
|---|---|
| CN112412556A true CN112412556A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011410077.8A Pending CN112412556A (en) | 2020-12-03 | 2020-12-03 | BEST dual-machine system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498708A (en) * | 2013-10-10 | 2014-01-08 | 中国电力工程顾问集团华东电力设计院 | Air-cooling reheating unit system arranged in small back-pressure type steam turbine and used for driving feed pump |
| CN203476411U (en) * | 2013-10-10 | 2014-03-12 | 中国电力工程顾问集团华东电力设计院 | Air-cooled reheating unit system with back pressure type small steam turbine driving water feed pump |
| CN204402598U (en) * | 2015-01-09 | 2015-06-17 | 国电浙江北仑第一发电有限公司 | Join the double reheat supercharging steam turbine thermodynamic system of backpressure small turbine |
| CN213654933U (en) * | 2020-12-03 | 2021-07-09 | 华能秦煤瑞金发电有限责任公司 | BEST dual-machine system |
-
2020
- 2020-12-03 CN CN202011410077.8A patent/CN112412556A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498708A (en) * | 2013-10-10 | 2014-01-08 | 中国电力工程顾问集团华东电力设计院 | Air-cooling reheating unit system arranged in small back-pressure type steam turbine and used for driving feed pump |
| CN203476411U (en) * | 2013-10-10 | 2014-03-12 | 中国电力工程顾问集团华东电力设计院 | Air-cooled reheating unit system with back pressure type small steam turbine driving water feed pump |
| CN204402598U (en) * | 2015-01-09 | 2015-06-17 | 国电浙江北仑第一发电有限公司 | Join the double reheat supercharging steam turbine thermodynamic system of backpressure small turbine |
| CN213654933U (en) * | 2020-12-03 | 2021-07-09 | 华能秦煤瑞金发电有限责任公司 | BEST dual-machine system |
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