CN211314290U - System for deeply utilizing residual heat and residual pressure of heat supply steam - Google Patents
System for deeply utilizing residual heat and residual pressure of heat supply steam Download PDFInfo
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- CN211314290U CN211314290U CN201922087171.3U CN201922087171U CN211314290U CN 211314290 U CN211314290 U CN 211314290U CN 201922087171 U CN201922087171 U CN 201922087171U CN 211314290 U CN211314290 U CN 211314290U
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Abstract
The utility model discloses a system for degree of depth utilizes heat supply steam waste heat excess pressure. The system comprises a steam cooler, a back pressure steam turbine, a generator, a steam turbine high-pressure cylinder and a boiler; the steam inlet of the steam cooler is connected with a steam source through a pipeline, the back pressure turbine is connected with the steam outlet of the steam cooler through a pipeline, and the generator is connected with the back pressure turbine; the superheated steam outlet of the boiler is connected with a steam inlet of a high-pressure cylinder of the steam turbine through a main steam pipeline; the exhaust port of the high-pressure cylinder of the steam turbine is connected with the reheating steam inlet of the boiler through a cold section reheating steam pipeline; a reheating steam outlet of the boiler is connected with a hot section reheating steam pipeline; the steam inlet of the steam cooler is connected with a hot section reheating steam pipeline; and the water outlet of the steam cooler is connected with the superheated water inlet of the boiler.
Description
Technical Field
The utility model relates to a steam utilizes the field, concretely relates to system of heat supply steam waste heat excess pressure is utilized to degree of depth.
Background
The steam is not only a high-grade secondary energy source, but also a heat-carrying working medium with wide utilization value, and the energy-saving effect can be achieved by reasonably and effectively utilizing the steam.
The temperature and the pressure of the existing heat supply steam source and a heat user are not matched, the steam source meets the requirements of the user through a temperature and pressure reduction mode, and the great waste of the residual heat and the residual pressure of steam is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome above-mentioned prior art not enough, the utility model provides a system of degree of depth utilization heat supply steam waste heat excess pressure retrieves the waste heat excess pressure of steam through steam cooler and back pressure steam turbine, makes the steam parameter reduce the back and goes to industry or heating and uses vapour, solves the unmatched problem of heat supply steam pressure and user's demand, make full use of heat supply steam's waste heat excess pressure.
The utility model adopts the technical proposal that:
a system for deeply utilizing the residual heat and pressure of heat supply steam comprises a steam cooler, a back pressure steam turbine and a generator;
the steam inlet of the steam cooler is connected with a steam source through a pipeline, the back pressure turbine is connected with the steam outlet of the steam cooler through a pipeline, and the generator is connected with the back pressure turbine.
Further, the system also comprises a high-pressure cylinder of a steam turbine and a boiler;
the superheated steam outlet of the boiler is connected with a steam inlet of a high-pressure cylinder of the steam turbine through a main steam pipeline; the exhaust port of the high-pressure cylinder of the steam turbine is connected with the reheating steam inlet of the boiler through a cold section reheating steam pipeline; a reheating steam outlet of the boiler is connected with a hot section reheating steam pipeline; the steam inlet of the steam cooler is connected with a hot section reheating steam pipeline; and the water outlet of the steam cooler is connected with the superheated water inlet of the boiler.
Furthermore, the steam inlet of the intermediate pressure cylinder is connected with a hot section reheating steam pipeline; and the steam extraction pipeline connected with the first-stage steam extraction port of the intermediate pressure cylinder is also connected with a steam inlet of the steam cooler.
Furthermore, the steam turbine further comprises a first high-pressure heater, and a steam inlet of the first high-pressure heater is connected with the high-pressure cylinder of the steam turbine through a steam extraction pipeline.
And further, the steam extraction device also comprises a second high-pressure heater, and a steam inlet of the second high-pressure heater is connected with a steam extraction pipeline connected with a first-stage steam extraction port of the intermediate pressure cylinder.
Furthermore, the water outlet of the second high-pressure heater is connected with the water inlet of the first high-pressure heater, and the water outlet of the first high-pressure heater is connected with the water inlet of the steam cooler.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) this embodiment is through steam cooler and turbo generator set, utilizes steam waste heat residual pressure, makes heat supply steam parameter reduce through this system and goes to industry or for the heating steam after, solves the unmatched problem of steam pressure and user's demand.
(2) The cascade utilization of steam energy can be realized to this embodiment, and abundant recycle has utilized the waste heat residual pressure of steam, has effectively reduced the superheat degree that gets into back pressure steam turbine steam, reduces equipment cost, adopts steam cooler heating feedwater simultaneously, can improve boiler feed water temperature, improves unit thermal efficiency that circulates.
Drawings
FIG. 1 is a schematic structural diagram of a system for deeply utilizing residual heat and pressure of heating steam according to a first embodiment;
fig. 2 is a schematic structural diagram of a system for deeply utilizing residual heat and pressure of heating steam in the second embodiment;
FIG. 3 is a schematic structural diagram of a system for deeply utilizing residual heat and pressure of heating steam in accordance with a third embodiment;
the system comprises a steam turbine high-pressure cylinder 1, a steam turbine high-pressure cylinder 2, an intermediate-pressure cylinder 3, a boiler 4, a generator 5, a first high-pressure heater 6, a second high-pressure heater 7, a steam cooler 8 and a back pressure steam turbine.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
Example one
A system for deeply utilizing the residual heat and the residual pressure of heat supply steam comprises a steam cooler 7, a back pressure steam turbine 8 and a generator 4; the steam inlet of the steam cooler 7 is connected with a steam source through a pipeline, the back pressure turbine 8 is connected with the steam outlet of the steam cooler through a pipeline, and the generator 7 is connected with the back pressure turbine 7.
Through steam cooler and steam turbine, utilize steam waste heat residual pressure, go to industry or for the heating steam after making heat supply steam parameter reduce through this system, solve the unmatched problem of steam pressure and user's demand.
Example two
As shown in fig. 2, a system for deeply utilizing the residual heat and pressure of heating steam comprises a high-pressure cylinder 1 of a steam turbine, a boiler 3, a steam cooler 7 and a back pressure steam turbine 8;
the superheated steam outlet of the boiler is connected with the steam inlet of the high-pressure cylinder 1 of the steam turbine through a main steam pipeline; the exhaust port of the steam turbine high-pressure cylinder 1 is connected with the reheating steam inlet of the boiler through a cold section reheating steam pipeline; a reheating steam outlet of the boiler is connected with a hot section reheating steam pipeline; a steam inlet of the steam cooler 7 is connected with a hot section reheating steam pipeline, and a steam outlet of the steam cooler 7 is connected with a steam inlet of a back pressure steam turbine 8; the back pressure turbine 8 is also connected with a generator; and the water outlet of the steam cooler 7 is connected with the water inlet of the boiler superheater 4.
When the system of the degree of depth utilization heat supply steam waste heat residual pressure that this embodiment provided used, steam cooler 7 extracted steam from the reheat steam pipeline, utilized the steam waste heat, the medium temperature superheated steam of steam cooler 7 exhaust high pressure gets into 8 acting drive generators 4 electricity of back pressure turbine, back pressure turbine makes the heat supply steam parameter reduce the back to industry or for the heating vapour, solves the unmatched problem of steam pressure and user's demand, make full use of heat supply steam's waste heat residual pressure.
EXAMPLE III
As shown in fig. 3, the utility model provides a system of degree of depth utilization heat supply steam waste heat excess pressure, this system include steam turbine high pressure cylinder 1, intermediate pressure cylinder 2, boiler 3, first high pressure feed water heater 5, second high pressure feed water heater 6, steam cooler 7, back pressure steam turbine 8 and generator 9.
Specifically, the superheated steam outlet of the boiler 3 is connected with the steam inlet of the high-pressure cylinder 1 of the steam turbine through a main steam pipeline; the exhaust port of the steam turbine high-pressure cylinder 1 is connected with the reheating steam inlet of the boiler through a cold section reheating steam pipeline; a reheating steam outlet of the boiler 3 is connected with a steam inlet of the intermediate pressure cylinder 2 through a hot section reheating steam pipeline; a first-stage steam extraction port of the intermediate pressure cylinder 2 is connected with a second high-pressure heater 6 through a steam extraction pipeline; the steam cooler 7 steam inlet is connected with the extraction pipeline that hot section reheat steam pipe way or intermediate pressure cylinder first order extraction steam ports are connected, steam cooler 7's steam outlet is connected with the steam inlet of back pressure steam turbine 8, steam cooler 7's water inlet is connected with first high pressure feed water heater delivery port, steam cooler's delivery port is connected with the overheated water inlet of boiler, back pressure steam turbine 8's steam outlet is connected with the heat supply pipeline, generator 4 is connected with back pressure steam turbine 8.
In the present exemplary embodiment, the first high-pressure heater 5 is also connected to a second high-pressure heater 6. And the steam outlet of the steam turbine high-pressure cylinder 1 is also connected with a first high-pressure heater 5 through a steam extraction pipeline.
As shown in FIG. 1, when the circulation system using the residual heat of the reheat steam deeply provided by the present invention is used, after the main steam generated by the overheating of the boiler enters the high pressure steam turbine cylinder 1 through the main steam pipeline, part of the steam enters the first high pressure heater 5 through the steam extraction pipeline to heat the boiler feed water, the steam discharged from the high pressure steam turbine cylinder 1 enters the boiler through the cold reheat steam pipeline to be reheated into the reheat steam, after the high temperature and high pressure reheat steam enters the intermediate pressure cylinder 2 through the hot reheat steam pipeline, part of the steam enters the second high pressure heater 6 through the steam extraction pipeline to heat the boiler feed water, the first stage extraction of the intermediate pressure cylinder 2 is the reheated high temperature and high pressure steam, a higher degree of superheat is formed, in order to fully utilize the residual heat of the reheat steam, the steam cooler 7 extracts the steam from the reheat steam pipeline or the steam extraction pipeline connected after the first stage extraction, the waste heat of the steam is utilized to absorb a part of heat to heat the boiler feed water, the high-pressure medium-temperature superheated steam discharged by the steam cooler 7 enters the back pressure turbine 8 to do work to drive the generator 4 to generate electricity, the steam discharge parameter of the back pressure turbine 8 is low, the back pressure turbine can be used for industrial or heating steam, and the waste heat and the residual pressure of the reheated steam are fully utilized.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (6)
1. A system for deeply utilizing the residual heat and the residual pressure of heat supply steam is characterized by comprising a steam cooler, a back pressure steam turbine and a generator;
the steam inlet of the steam cooler is connected with a steam source through a pipeline, the back pressure turbine is connected with the steam outlet of the steam cooler through a pipeline, and the generator is connected with the back pressure turbine.
2. The system for deeply utilizing the residual heat and pressure of the heating steam as claimed in claim 1, further comprising a steam turbine high pressure cylinder and a boiler;
the superheated steam outlet of the boiler is connected with a steam inlet of a high-pressure cylinder of the steam turbine through a main steam pipeline; the exhaust port of the high-pressure cylinder of the steam turbine is connected with the reheating steam inlet of the boiler through a cold section reheating steam pipeline; a reheating steam outlet of the boiler is connected with a hot section reheating steam pipeline; the steam inlet of the steam cooler is connected with a hot section reheating steam pipeline; and the water outlet of the steam cooler is connected with the superheated water inlet of the boiler.
3. The system for deeply utilizing the residual heat and the residual pressure of the heating steam as claimed in claim 1, which is characterized by further comprising an intermediate pressure cylinder, wherein a steam inlet of the intermediate pressure cylinder is connected with a hot section reheating steam pipeline; and the steam extraction pipeline connected with the first-stage steam extraction port of the intermediate pressure cylinder is also connected with a steam inlet of the steam cooler.
4. The system for deeply utilizing the residual heat and pressure of heating steam as claimed in claim 1, further comprising a first high-pressure heater, wherein a steam inlet of the first high-pressure heater is connected with a high-pressure cylinder of the steam turbine through a steam extraction pipeline.
5. The system for deeply utilizing the residual heat and pressure of heating steam as claimed in claim 1, further comprising a second high pressure heater, wherein a steam inlet of the second high pressure heater is connected with a steam extraction pipeline connected with a steam extraction port of the first stage of the intermediate pressure cylinder.
6. The system for deeply utilizing the residual heat and pressure of the heating steam as claimed in claim 5, wherein the water outlet of the second high pressure heater is connected with the water inlet of the first high pressure heater, and the water outlet of the first high pressure heater is connected with the water inlet of the steam cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922087171.3U CN211314290U (en) | 2019-11-26 | 2019-11-26 | System for deeply utilizing residual heat and residual pressure of heat supply steam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922087171.3U CN211314290U (en) | 2019-11-26 | 2019-11-26 | System for deeply utilizing residual heat and residual pressure of heat supply steam |
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| CN211314290U true CN211314290U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898574A (en) * | 2022-10-25 | 2023-04-04 | 东方电气集团东方汽轮机有限公司 | Multi-parameter heat supply steam cascade utilization system |
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2019
- 2019-11-26 CN CN201922087171.3U patent/CN211314290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898574A (en) * | 2022-10-25 | 2023-04-04 | 东方电气集团东方汽轮机有限公司 | Multi-parameter heat supply steam cascade utilization system |
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Address after: 250000 2-801, Yinhe building, No. 2008, Xinluo street, high tech Zone, Jinan City, Shandong Province Patentee after: SHANDONG HUADIAN ENERGY SAVING TECHNOLOGY Co.,Ltd. Address before: 250014 no.14958, Jingshi Road, Lixia District, Jinan City, Shandong Province Patentee before: SHANDONG HUADIAN ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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