CN212716791U - Large-flow industrial steam supply system utilizing double-path combined type intermediate regulating valve of steam turbine - Google Patents
Large-flow industrial steam supply system utilizing double-path combined type intermediate regulating valve of steam turbine Download PDFInfo
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- CN212716791U CN212716791U CN202021468954.2U CN202021468954U CN212716791U CN 212716791 U CN212716791 U CN 212716791U CN 202021468954 U CN202021468954 U CN 202021468954U CN 212716791 U CN212716791 U CN 212716791U
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Abstract
The utility model discloses an utilize large-traffic industry of steam turbine double-circuit combination formula intermediate governor to supply vapour system, the over heater export of boiler is linked together with the entry of high-pressure cylinder, the steam extraction export of high-pressure cylinder is linked together with the reheater entry of boiler, the reheater export of boiler divide into the two-way, wherein the entry through first valve and the entry of fifth valve are linked together all the way, the export of first valve is linked together through the entry of second valve with the intermediate pressure jar, another way is linked together through the entry of third valve and fourth valve with the intermediate pressure jar, the fifth valve export supplies the vapour pipeline with high temperature industry to be linked together, the export of high-pressure cylinder supplies the vapour pipeline with low temperature industry to be linked together through sixth valve, this system can realize the unit and arrange the steam or the steam admission of intermediate pressure jar and draw under the operational mode that the vapour supplied industry to supply vapour, improve the regulating power of unit industry pressure and flow.
Description
Technical Field
The utility model belongs to thermal power technology peak shaving field relates to a large-traffic industry of throttle supplies vapour system in utilizing steam turbine double-circuit combination formula.
Background
In order to meet the policy requirements of national energy conservation and emission reduction, comprehensive energy utilization and the like, a large number of thermal power generating units gradually draw close to the operation mode of cogeneration, the maximization of enterprise benefits can be realized while the heat supply scale is enlarged, and the requirement on the industrial steam supply of the thermal power generating units is unprecedentedly improved while the small boilers in the industrial park are forced to gradually face the shutdown in accordance with the environmental protection requirement. At present, most of more industrial steam demand parameters mainly take high-pressure cylinder exhaust steam or intermediate pressure cylinder steam admission as main parameters, and the main parameters have higher regulation requirements on a medium-pressure cylinder steam admission valve. The depth of the conventional intermediate throttle system participating in regulation at present cannot meet the requirements of industrial steam supply with large flow and stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a large-traffic industry of throttle supplies vapour system in utilizing steam turbine double-circuit combination formula, this system can realize the unit and under the operational mode that high-pressure cylinder steam extraction or intermediate pressure cylinder admission steam extraction supplied industry to supply vapour, improve the regulating power that the unit industry supplied vapour pressure and flow.
In order to achieve the above object, the large-flow industrial steam supply system using the steam turbine two-way combined type intermediate throttle comprises a boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a first valve, a second valve, a third valve, a fourth valve, a fifth valve and a sixth valve;
the outlet of the superheater of the boiler is communicated with the inlet of the high-pressure cylinder, the steam exhaust outlet of the high-pressure cylinder is communicated with the inlet of a reheater of the boiler, the outlet of the reheater of the boiler is divided into two paths, one path of the outlet of the boiler is communicated with the inlet of the intermediate pressure cylinder through the inlet of the first valve and the inlet of the fifth valve, the outlet of the first valve is communicated with the inlet of the intermediate pressure cylinder through the second valve, the other path of the outlet of the first valve is communicated with the inlet of the intermediate pressure cylinder through the third valve and the fourth valve, the outlet of the fifth valve is communicated with a high-temperature industrial steam supply pipeline, and the.
The high pressure cylinder and the intermediate pressure cylinder are coaxially arranged.
The utility model discloses following beneficial effect has:
when the large-flow industrial steam supply system utilizing the two-way combined type intermediate throttle of the steam turbine operates specifically, when the unit operates under the non-industrial steam supply working condition, the first valve, the second valve, the third valve and the fourth valve are all opened, the fifth valve and the sixth valve are closed, at the moment, the unit does not provide industrial steam, and all the exhausted steam of the high-pressure cylinder enters the boiler to absorb heat and then enters the intermediate-pressure cylinder to do work; when the unit needs to provide a small amount of industrial steam, the first valve and the third valve are properly closed, the second valve, the fourth valve, the fifth valve and the sixth valve are fully opened, at the moment, the unit only provides a small amount of industrial steam, and most of the exhausted steam of the high-pressure cylinder enters the boiler to absorb heat and then enters the medium-pressure cylinder to do work; when the unit need provide a large amount of industrial steam, open fifth valve and sixth valve entirely, first valve, second valve, third valve and fourth valve all keep less aperture, wherein, carry out the coarse adjustment of high-pressure cylinder exhaust pressure through second valve and fourth valve, carry out the regulation that becomes more meticulous of industry steam supply flow through first valve and third valve to improve the regulating power of unit industry steam supply pressure and flow, simple structure, convenient operation, the practicality is extremely strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is boiler, 2 is high pressure cylinder, 3 is intermediate pressure cylinder, 4 is first valve, 5 is the second valve, 6 is the third valve, 7 is the fourth valve, 8 is the fifth valve, 9 is the sixth valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the large-flow industrial steam supply system using the two-way combined type intermediate throttle of the steam turbine of the present invention includes a boiler 1, a high pressure cylinder 2, an intermediate pressure cylinder 3, a first valve 4, a second valve 5, a third valve 6, a fourth valve 7, a fifth valve 8, and a sixth valve 9; the outlet of a superheater of the boiler 1 is communicated with the inlet of the high-pressure cylinder 2, the steam exhaust outlet of the high-pressure cylinder 2 is communicated with the inlet of a reheater of the boiler 1, the outlet of the reheater of the boiler 1 is divided into two paths, one path of the two paths is communicated with the inlet of the intermediate pressure cylinder 3 through the inlet of a first valve 4 and the inlet of a fifth valve 8, the outlet of the first valve 4 is communicated with the inlet of the intermediate pressure cylinder 3 through a second valve 5, the other path of the two paths is communicated with the inlet of the intermediate pressure cylinder 3 through a third valve 6 and a fourth valve 7, the outlet of the fifth valve 8 is communicated with a high-temperature industrial steam supply pipeline, the outlet of the high-pressure cylinder 2 is communicated with a low-temperature industrial steam.
The utility model discloses a concrete working process does:
when the unit operates under the non-industrial steam supply working condition, the first valve 4, the second valve 5, the third valve 6 and the fourth valve 7 are all opened, the fifth valve 8 and the sixth valve 9 are closed, at the moment, the unit does not provide industrial steam, and all exhaust steam of the high-pressure cylinder 2 enters the boiler 1 to absorb heat and then enters the intermediate-pressure cylinder 3 to do work.
When the unit provides a small amount of industrial steam, the first valve 4 and the third valve 6 are properly closed, the second valve 5, the fourth valve 7, the fifth valve 8 and the sixth valve 9 are fully opened, at the moment, the unit only provides a small amount of industrial steam, and most of the exhausted steam of the high-pressure cylinder 2 enters the boiler 1 to absorb heat and then enters the intermediate pressure cylinder 3 to do work.
When the unit is providing a large amount of industrial steam, the fifth valve 8 and the sixth valve 9 are fully opened, the first valve 4, the second valve 5, the third valve 6 and the fourth valve 7 are kept at small opening degrees, wherein the exhaust pressure of the high pressure cylinder 2 is roughly adjusted through the second valve 5 and the fourth valve 7, and the industrial steam supply flow is finely adjusted through the first valve 4 and the third valve 6.
The utility model discloses simple structure, convenient operation, the practicality is extremely strong, guarantees that the unit is providing large-traffic industry and supplies vapour operating mode and not providing the nimble switching of multiple operational mode between the vapour operating mode of industry supply, and industry supplies vapour parameter to remain stable in the adjustment process.
Claims (2)
1. A large-flow industrial steam supply system utilizing a two-way combined type intermediate regulating valve of a steam turbine is characterized by comprising a boiler (1), a high-pressure cylinder (2), an intermediate pressure cylinder (3), a first valve (4), a second valve (5), a third valve (6), a fourth valve (7), a fifth valve (8) and a sixth valve (9);
the outlet of a superheater of the boiler (1) is communicated with the inlet of the high-pressure cylinder (2), the steam exhaust outlet of the high-pressure cylinder (2) is communicated with the inlet of a reheater of the boiler (1), the outlet of the reheater of the boiler (1) is divided into two paths, one path of the steam exhaust outlet is communicated with the inlet of a first valve (4) and the inlet of a fifth valve (8), the outlet of the first valve (4) is communicated with the inlet of the intermediate pressure cylinder (3) through a second valve (5), the other path of the steam exhaust outlet is communicated with the inlet of the intermediate pressure cylinder (3) through a third valve (6) and a fourth valve (7), the outlet of the fifth valve (8) is communicated with a high-temperature industrial steam supply pipeline, and the outlet of the high-pressure cylinder (2) is communicated with a low-temperature industrial steam supply pipeline through a.
2. The large flow industrial steam supply system using a steam turbine two-way combined type intermediate throttle valve according to claim 1, characterized in that the high pressure cylinder (2) and the intermediate pressure cylinder (3) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021468954.2U CN212716791U (en) | 2020-07-22 | 2020-07-22 | Large-flow industrial steam supply system utilizing double-path combined type intermediate regulating valve of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021468954.2U CN212716791U (en) | 2020-07-22 | 2020-07-22 | Large-flow industrial steam supply system utilizing double-path combined type intermediate regulating valve of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212716791U true CN212716791U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021468954.2U Active CN212716791U (en) | 2020-07-22 | 2020-07-22 | Large-flow industrial steam supply system utilizing double-path combined type intermediate regulating valve of steam turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN212716791U (en) |
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2020
- 2020-07-22 CN CN202021468954.2U patent/CN212716791U/en active Active
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