CN219473770U - Heating system - Google Patents
Heating system Download PDFInfo
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- CN219473770U CN219473770U CN202320189339.5U CN202320189339U CN219473770U CN 219473770 U CN219473770 U CN 219473770U CN 202320189339 U CN202320189339 U CN 202320189339U CN 219473770 U CN219473770 U CN 219473770U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The utility model belongs to the technical field of heat supply of turbines, and particularly relates to a heat supply system. The utility model can improve the wide load heat supply capacity of the unit, reduce the heat supply coal consumption of the unit and improve the energy utilization rate.
Description
Technical Field
The utility model belongs to the technical field of heat supply of steam turbines, and particularly relates to a heat supply system.
Background
When the steam turbine set is provided with a cold heat source, a hot heat source and a main steam heat source, the cold heat source, the hot heat source and the main steam heat source can be used as heat sources for external heat supply, and when the cold heat source and the hot heat source can not meet the requirement of a user on steam pressure during low-load operation in the steam turbine, the temperature and the pressure of the main steam source are required to be switched to reduce so as to carry out external heat supply, but the main steam source is used for directly reducing the temperature and the pressure and the heat, so that energy waste is caused, and the coal consumption of the steam turbine is improved.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a heating system which can improve the wide load heat supply capacity of a unit, reduce the heat supply coal consumption of the unit and improve the energy utilization rate.
The heating system of the embodiment of the utility model comprises: the steam turbine is connected with the pressure matching component through the heat supply pipeline;
the first inlet of the boiler is suitable for being connected with a water source, the first outlet of the boiler is connected with the steam pipeline, and the steam pipeline is connected with the pressure matching component.
The heating system provided by the embodiment of the utility model can improve the wide load heat supply capacity of the unit, reduce the heat supply coal consumption of the unit and improve the energy utilization rate.
In some embodiments, the heating pipeline comprises a cold re-pipeline, the pressure matching component comprises a first pressure matcher, one end of the cold re-pipeline is connected with an outlet of the steam turbine, the other end of the cold re-pipeline is connected with a first inlet of the first pressure matcher, and the steam pipeline is connected with a second inlet of the first pressure matcher.
In some embodiments, the heating pipeline further comprises a hot re-pipeline, the pressure matching component further comprises a second pressure matcher, the cold re-pipeline is connected with a second inlet of the boiler, one end of the hot re-pipeline is connected with a second outlet of the boiler, the other end of the hot re-pipeline is connected with a first inlet of the second pressure matcher, the steam pipeline is connected with a second inlet of the second pressure matcher, and an outlet of the second pressure matcher is connected with a user side.
In some embodiments, the heating system further comprises a steam supply header, one end of the steam supply header is connected to the user terminal, and the other end of the steam supply header is connected to the first pressure matcher and the second pressure matcher, respectively.
In some embodiments, the heating system further comprises a first check valve and a first pressure reducing valve, one end of the first check valve is connected with the first pressure matcher, the other end of the first check valve is connected with the first pressure reducing valve, and the other end of the pressure reducing valve is connected with the steam pipeline.
In some embodiments, the heating system further comprises a second one-way valve and a first flow regulating valve, one end of the second one-way valve is connected with the cold re-pipeline, the other end of the second one-way valve is connected with one end of the first flow regulating valve, and the other end of the second one-way valve is connected with the steam supply header.
In some embodiments, the heating system further comprises a third one-way valve and a second flow regulating valve, one end of the third one-way valve is connected with the hot re-pipeline, the other end of the third one-way valve is connected with one end of the second flow regulating valve, and the other end of the third one-way valve is connected with the steam supply header.
In some embodiments, the heating system further comprises a first valve having one end connected to the cold re-piping and a second valve having another end connected to the first inlet of the first pressure matcher,
one end of the second valve is connected with the hot re-pipeline, and the other end of the second valve is connected with the first inlet of the second pressure matcher.
In some embodiments, the heating system further comprises a first desuperheater and a second desuperheater, one end of the first desuperheater being connected to the outlet of the first pressure matcher, the other end of the first desuperheater being connected to the user side,
one end of the second desuperheater is connected with an outlet of the second pressure matcher, and the other end of the second desuperheater is connected with the user end.
In some embodiments, the heating system further comprises a reheater, one end of the reheater is connected to the steam turbine, and the other end of the reheater is connected to the cold return line.
Drawings
Fig. 1 is a schematic diagram of a heating system according to an embodiment of the present utility model.
Reference numerals:
a heat supply line 1, a cold return line 101, a hot return line 102,
the pressure matching block 2, the first pressure matcher 201, the second pressure matcher 202,
the heat generated by the boiler 3 is transferred to the heat generating unit,
a steam pipeline 4, a steam turbine 5, a steam supply header 6, an industrial steam supply main pipe 7,
a first one-way valve 8, a first pressure reducing valve 9,
a second check valve 10, a first flow rate regulating valve 11,
a third check valve 12, a second flow regulating valve 13,
a first valve 14, a second valve 15, a first desuperheater 16, a second desuperheater 17, a third valve 18, a third desuperheater 19, a fourth desuperheater 20, a second pressure reducing valve 21.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
The heat supply system comprises a steam turbine 5, a heat supply pipeline 1, a pressure matching part 2, a boiler 3 and a steam pipeline 4, wherein the steam turbine 5 is connected with the pressure matching part 2 through the heat supply pipeline 1, a first inlet of the boiler 3 is suitable for being connected with a water source, a first outlet of the boiler 3 is connected with the steam pipeline 4, and the steam pipeline 4 is connected with the pressure matching part 2.
Specifically, the inlet of the steam pipe 4 is connected to the first outlet of the boiler 3, the first inlet of the boiler 3 is connected to the water supply source, the boiler 3 is adapted to heat water to form steam, for example, the pressure of the steam may be 24.2MPa, the temperature is 560 ℃, the steam turbine 5 is connected to the pressure matching unit 2 through the heat supply pipe 1, the inlet of the heat supply pipe 1 is connected to the steam turbine 5, the outlet of the heat supply pipe 1 is connected to the first inlet of the pressure matching unit 2, the second inlet of the pressure matching unit 2 is connected to the outlet of the steam pipe 4, for example, the pressure of the steam in the heat supply pipe 1 is 1.8MPa or 4.2MPa, the temperature is 350 ℃, the fluid in the heat supply pipe 1 and the fluid in the steam pipe 4 enter the pressure matching unit 2, and the pressure matching unit 2 may shunt, merge and rotate the fluid to achieve sufficient mixing, optionally, a pressure sensor and a temperature sensor are provided at the outlet of the pressure matching unit 2 to monitor the pressure and the temperature of the fluid output from the pressure matching unit 2, the pressure and the pressure of the fluid, the heat supply system is prevented from being excessively high or low, and the safety of the heat supply system is prevented.
According to the heating system provided by the embodiment of the utility model, the pressure matching component 2 is arranged, and the pressure matching component 2 can mix the steam pipeline 4 with the fluid in the heating pipeline 1, so that the need of cooling and pressure reduction when the fluid in the steam pipeline 4 is used singly for overheating is avoided, the energy waste is avoided, the heating efficiency is improved, and the energy utilization rate is improved.
In some embodiments, the heating pipeline 1 comprises a cold re-pipeline 101, the pressure matching part 2 comprises a first pressure matcher 201, one end of the cold re-pipeline 101 is connected with an outlet of the steam turbine 5, the other end of the cold re-pipeline 101 is connected with a first inlet of the first pressure matcher 201, and the steam pipeline 4 is connected with a second inlet of the first pressure matcher 201.
Specifically, the inlet of the recooling pipe is connected to the steam turbine 5, for example, the inlet of the cold recooling pipe 101 is connected to the outlet of the high-pressure cylinder of the steam turbine 5, and the fluid subjected to work by the high-pressure cylinder enters the cold recooling pipe 101 from the outlet of the high-pressure cylinder, for example, the temperature of the fluid in the cold recooling pipe 101 is 420 ℃, and the pressure is 1.8MPa. The first outlet of the cold re-pipeline 101 is connected with the first inlet of the first pressure matcher 201, the outlet of the steam pipeline 4 is connected with the second inlet of the first pressure matcher 201, and then the first pressure matcher 201 mixes the fluid flowing into the first matcher by the steam pipeline 4 with the fluid flowing into the first matcher by the cold re-pipeline 101 to supply heat to a user side, so that the direct independent use of the steam pipeline 4 is avoided, the fluid in the steam pipeline 4 needs to be cooled and depressurized, and the utilization rate of energy is improved.
In some embodiments, the heating pipeline 1 further comprises a hot re-pipeline 102, the pressure matching component 2 further comprises a second pressure matcher 202, the boiler 3 has a second inlet and a second outlet, the cold re-pipeline 101 is connected to the second inlet of the boiler 3, one end of the hot re-pipeline 102 is connected to the second outlet of the boiler 3, the other end of the hot re-pipeline 102 is connected to the first inlet of the second pressure matcher 202, the steam pipeline 4 is connected to the second inlet of the second pressure matcher 202, and the outlet of the second pressure matcher 202 is connected to the user side.
Specifically, the second outlet of the cold re-piping 101 is connected to the second inlet of the boiler 3, the second outlet of the boiler 3 is connected to the inlet of the hot re-piping 102, the boiler 3 heats the fluid flowing into the boiler 3 from the cold re-piping 101, the heated fluid enters the hot re-piping 102 through the second outlet of the boiler 3, the first outlet of the hot re-piping 102 is connected to the first inlet of the second pressure matcher 202, the outlet of the steam piping 4 is connected to the second inlet of the second pressure matcher 202, and the second pressure matcher 202 is adapted to mix the fluid flowing into the second pressure matcher 202 from the steam piping 4 with the fluid flowing into the second pressure matcher 202 from the hot re-piping 102, thereby avoiding energy waste caused by directly using the fluid of the steam piping 4 alone, and avoiding that the heat of the fluid of the cold re-piping 101 and the hot re-piping 102 is insufficient for providing to the user side by mixing the fluid of the cold re-piping 101 with the fluid in the steam piping 4. The heat supply capacity of the heat supply system is improved, and the stability and safety of the heat supply system are further improved.
Optionally, the heating system further includes a steam supply header 6, one end of the steam supply header 6 is connected to the user end, and the other end of the steam supply header 6 is connected to the first pressure matcher 201 and the second pressure matcher 202, respectively. For example, the steam supply header 6 is connected to the outlet of the first pressure matcher 201, and the steam supply header 6 is connected to the outlet of the second pressure matcher 202, so that the steam supply header 6 mixes the fluids provided by the first matcher and the second matcher, thereby avoiding unstable fluid temperature and pressure after mixing fluids with different pressures and temperatures, and ensuring stability of the fluid temperature and pressure provided to the user side.
Further, the heat supply system further comprises an industrial steam supply main pipe 7, one end of the industrial steam supply main pipe 7 is connected with the steam supply header 6, and the other end of the industrial steam supply main pipe 7 is connected with the user end, so that stability and safety of the heat supply system are improved.
In some embodiments, the heating system further comprises a first check valve 8 and a first pressure reducing valve 9, one end of the first check valve 8 is connected to the first pressure matcher 201, the other end of the first check valve 8 is connected to one end of the first pressure reducing valve 9, and the other end of the first pressure reducing valve 9 is connected to the steam pipe 4.
Specifically, one end of the first check valve 8 is connected to the first pressure reducing valve 9, and the other end of the first check valve 8 is connected to the second inlet of the first pressure matcher 201 and the second inlet of the second pressure matcher 202, so that the fluid in the steam pipeline 4 is reduced in pressure, the pipeline is prevented from being damaged by the fluid with excessive pressure, and stability and safety of the heating system are improved.
Further, the steam supply pipeline further comprises a third valve 18, one end of the third valve 18 is connected with the first one-way valve 8, and the other end of the third valve 18 is connected with the second inlet of the first pressure matcher 201 and the second inlet of the second pressure matcher 202, so that stability and safety of the heating system are improved.
Further, the heating system further comprises a third attemperator 19, one end of the third attemperator 19 is connected with a third valve 18, and the other end of the third attemperator 19 is connected with the steam supply header 6, so that the damage to the pipeline caused by the outflow of the fluid with the excessive temperature is avoided, and the stability and the safety of the heating system are improved.
Optionally, the heating system further comprises a second one-way valve 10 and a first flow regulating valve 11, one end of the second one-way valve 10 is connected with the cold re-pipeline 101, the other end of the second one-way valve 10 is connected with one end of the first flow regulating valve 11, and the other end of the second one-way valve 10 is connected with the steam supply header 6. For example, the heating system may close the steam pipe 4, and thus the heating system may supply steam to the steam supply header 6 through the cold re-pipe 101 alone, thereby improving the adjustment efficiency of the heating system, improving the heating efficiency of the heating system, and further improving the stability and safety of the heating system.
Optionally, the heating system further comprises a third one-way valve 12 and a second flow regulating valve 13, one end of the third one-way valve 12 is connected with the hot re-pipeline 102, the other end of the third one-way valve 12 is connected with one end of the second flow regulating valve 13, and the other end of the third one-way valve 12 is connected with the steam supply header 6. For example, the heating system may close the steam pipe 4, and thus the heating system may supply steam to the steam supply header 6 through the heat re-pipe 102 alone, thereby improving the adjustment efficiency of the heating system, improving the heating efficiency of the heating system, and further improving the stability and safety of the heating system.
Further, the heating system further comprises a second pressure reducing valve 21, one end of the second pressure reducing valve 21 is connected with the second flow regulating valve 13, and the other end of the second pressure reducing valve 21 is connected with the hot re-pipeline 102 so as to avoid damage to the pipeline caused by the fluid with excessive pressure, and improve the stability and safety of the heating system.
Further, the heating system further comprises a fourth desuperheater 20, one end of the fourth desuperheater 20 is connected with the third one-way valve 12, and the other end of the fourth desuperheater 20 is connected with the steam supply header 6, so that the pipeline is prevented from being damaged by flowing out of the fluid with the excessive temperature, and the stability and the safety of the heating system are improved.
Further, the heating system further comprises a first valve 14 and a second valve 15, one end of the first valve 14 is connected to the cold re-pipeline 101, the other end of the first valve 14 is connected to the first inlet of the first pressure matcher 201, one end of the second valve 15 is connected to the hot re-pipeline 102, and the other end of the second valve 15 is connected to the first inlet of the second pressure matcher 202.
Specifically, the first valve 14 is opened or closed to communicate or close the steam pipe 4 with the first pressure matcher 201, and the second valve 15 is opened or closed to communicate or close the steam pipe 4 with the second pressure matcher 202, so as to adapt to different use environments and improve the stability and safety of the heating system.
In some embodiments, the heating system further includes a first desuperheater 16 and a second desuperheater 17, one end of the first desuperheater 16 is connected to the outlet of the first pressure matcher 201, the other end of the first desuperheater 16 is connected to the user side, one end of the second desuperheater 17 is connected to the outlet of the second pressure matcher 202, and the other end of the second desuperheater 17 is connected to the user side.
Specifically, the first desuperheater 16 is adapted to reduce the temperature of the fluid at the outlet of the first pressure matcher 201, thereby avoiding damage to the pipeline caused by the outflow of the fluid at the excessive temperature, and the second desuperheater 17 is adapted to reduce the temperature of the fluid at the outlet of the second pressure matcher 202, thereby avoiding damage to the pipeline caused by the outflow of the fluid at the excessive temperature, and improving the stability and safety of the heating system.
Further, the heating system further comprises a reheater, one end of the reheater is connected with the steam turbine 5, and the other end of the reheater is connected with the cold re-pipeline 101. The reheater can reduce the humidity of the water vapor in the fluid flowing out of the high-pressure cylinder, is beneficial to protecting the steam turbine 5, and further improves the stability and safety of the heating system.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A heating system, comprising:
the steam turbine is connected with the pressure matching component through the heat supply pipeline;
the first inlet of the boiler is suitable for being connected with a water source, the first outlet of the boiler is connected with the steam pipeline, and the steam pipeline is connected with the pressure matching component.
2. A heating system according to claim 1, wherein the heating conduit comprises a cold re-conduit, the pressure matching means comprises a first pressure matcher, one end of the cold re-conduit is connected to the outlet of the steam turbine, the other end of the cold re-conduit is connected to a first inlet of the first pressure matcher, and the steam conduit is connected to a second inlet of the first pressure matcher.
3. A heating system according to claim 2, wherein the heating conduit further comprises a hot re-conduit, the pressure matching means further comprises a second pressure matcher, the cold re-conduit is connected to the second inlet of the boiler, one end of the hot re-conduit is connected to the second outlet of the boiler, the other end of the hot re-conduit is connected to the first inlet of the second pressure matcher, and the steam conduit is connected to the second inlet of the second pressure matcher, the outlet of the second pressure matcher being connected to the user side.
4. A heating system according to claim 3, further comprising a steam supply header, one end of the steam supply header being connected to the user terminal, and the other end of the steam supply header being connected to the first pressure matcher and the second pressure matcher, respectively.
5. A heating system according to claim 4, further comprising a first one-way valve and a first pressure reducing valve, one end of the first one-way valve being connected to the first pressure matcher, the other end of the first one-way valve being connected to the first pressure reducing valve, the other end of the pressure reducing valve being connected to the steam pipe.
6. A heating system according to claim 4, further comprising a second one-way valve and a first flow regulating valve, wherein one end of the second one-way valve is connected to the cold re-conduit, the other end of the second one-way valve is connected to one end of the first flow regulating valve, and the other end of the second one-way valve is connected to a steam supply header.
7. A heating system according to claim 4, further comprising a third one-way valve and a second flow regulating valve, wherein one end of the third one-way valve is connected to the hot re-conduit, the other end of the third one-way valve is connected to one end of the second flow regulating valve, and the other end of the third one-way valve is connected to the steam supply header.
8. A heating system according to claim 4, further comprising a first valve and a second valve, one end of the first valve being connected to the cold re-piping, the other end of the first valve being connected to the first inlet of the first pressure matcher,
one end of the second valve is connected with the hot re-pipeline, and the other end of the second valve is connected with the first inlet of the second pressure matcher.
9. A heating system according to claim 4, further comprising a first desuperheater and a second desuperheater, wherein one end of the first desuperheater is connected to an outlet of the first pressure matcher, and the other end of the first desuperheater is connected to the user side,
one end of the second desuperheater is connected with an outlet of the second pressure matcher, and the other end of the second desuperheater is connected with the user end.
10. A heating system according to claim 9, further comprising a reheater, one end of which is connected to the steam turbine, and the other end of which is connected to the cold reheat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189339.5U CN219473770U (en) | 2023-02-10 | 2023-02-10 | Heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320189339.5U CN219473770U (en) | 2023-02-10 | 2023-02-10 | Heating system |
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| CN219473770U true CN219473770U (en) | 2023-08-04 |
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| CN202320189339.5U Active CN219473770U (en) | 2023-02-10 | 2023-02-10 | Heating system |
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| CN (1) | CN219473770U (en) |
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2023
- 2023-02-10 CN CN202320189339.5U patent/CN219473770U/en active Active
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