CN204572082U - A kind of steam-turbine pipe-line system - Google Patents
A kind of steam-turbine pipe-line system Download PDFInfo
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- CN204572082U CN204572082U CN201520112292.8U CN201520112292U CN204572082U CN 204572082 U CN204572082 U CN 204572082U CN 201520112292 U CN201520112292 U CN 201520112292U CN 204572082 U CN204572082 U CN 204572082U
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Abstract
A kind of steam-turbine pipe-line system, independently lay to solve existing steam by-pass, there is pipeline complexity, vapour road layout is unreasonable, increase the problem of equipment investment and daily operating cost, the utility model proposes a kind of steam-turbine pipe-line system, it utilizes existingly goes the steam by-pass of vapour condenser for subsequent use and removes the intercommunity of steam by-pass two bypasses of air pre-heater and be integrated into a bypass, be the pressure being applicable to air pre-heater by the pressure adjusting of the steam by-pass one-level temperature-decreased pressure reducer removing vapour condenser for subsequent use, economize the steam by-pass removing independently air pre-heater, after the one-level temperature-decreased pressure reducer of vapour condenser steam by-pass for subsequent use, steam is linked into air pre-heater by another lateral.Steam pipework design is simpler, and layout is more reasonable, can effectively reduce equipment investment and daily operating cost.
Description
Technical field
The utility model relates to the steam-turbine pipe-line system of waste incineration and generating electricity, especially relates to a kind of steam-turbine pipe-line system containing steam-turbine bypass and air preheater heating equipment.
Background technique
Knownly utilize in the steam-turbine pipe-line system of garbage incineration power generation, its steam pipeline system mainly comprises the main steam road that is removed steam turbine, steam enters steam turbine acting generating through main steam road, draw gas from turbine bleed point (being generally the first order) supplies boiler air preheater heating vapour simultaneously; For ensureing that boiler burning normally runs when steam turbine breaks down or there is hidden danger, main steam road also arranges the steam by-pass that is removed vapour condenser for subsequent use, goes the steam by-pass of vapour condenser for subsequent use mainly to comprise pipeline, valve, one-level temperature-decreased pressure reducer, secondary temperature-decreased pressure reducer, vapour condenser for subsequent use; In addition, consider that steam turbine cannot ensure the supply boiler air preheater that draws gas when steam turbine breaks down or there is hidden danger, therefore, main steam pipe also arranges the steam by-pass that is removed air pre-heater, goes the steam by-pass of air pre-heater mainly to comprise pipeline, valve, temperature-decreased pressure reducer, air pre-heater.
Prior art shows, although the steam by-pass of removing vapour condenser for subsequent use and the steam by-pass of removing air pre-heater comprise temperature-decreased pressure reducer all equally, but be all independently lay pipeline, reason is the requirement that the vapor pressure after vapour condenser steam by-pass one-level temperature-decreased pressure reducer for subsequent use or secondary temperature-decreased pressure reducer does not meet access air pre-heater.Problem is, two steam by-passes are independently laid, exist pipeline complexity, vapour road layout unreasonable, increase equipment investment and daily operating cost.
Model utility content
Independently lay to solve existing steam by-pass, there is pipeline complexity, vapour road layout is unreasonable, increase the problem of equipment investment and daily operating cost, the utility model proposes a kind of steam-turbine pipe-line system, it utilizes the intercommunity of the steam by-pass of vapour condenser for subsequent use and the steam by-pass of air pre-heater and is integrated into a bypass, be the pressure being applicable to air pre-heater by the pressure adjusting of the one-level temperature-decreased pressure reducer of vapour condenser steam by-pass for subsequent use, cancel the steam by-pass of the independent air pre-heater laid, after the one-level temperature-decreased pressure reducer of vapour condenser steam by-pass for subsequent use, steam is linked into air pre-heater by another lateral.Steam pipework is designed simpler, layout is more reasonable, can effectively reduce equipment investment and daily operating cost.
The utility model solves the technological scheme that its technical problem adopts: a kind of steam-turbine pipe-line system, comprise the steam by-pass of major steam line and vapour condenser for subsequent use, described major steam line mainly comprises main pipeline, main valve, steam turbine, main vapour condenser and lead to the steam pipework of air pre-heater from bleeder steam mouth, before main valve is arranged on steam turbine, after main vapour condenser is arranged on steam turbine, described vapour condenser steam by-pass for subsequent use mainly comprises pipeline, sub valve, one-level temperature-decreased pressure reducer, secondary temperature-decreased pressure reducer, vapour condenser for subsequent use, it is characterized in that, lateral is also laid by steam supply air pre-heater after the one-level temperature-decreased pressure reducer of vapour condenser steam by-pass for subsequent use, when steam turbine normally works, main valve is opened, by-pass valve is closed, steam enters steam turbine acting generating through described major steam line, then air pre-heater is led to by the road from bleeder steam mouth, when steam turbine is out of service, main valve is closed, by-pass valve is opened, steam is divided into two branch roads after described steam by-pass enters one-level temperature-decreased pressure reducer, and one of them branch road enters vapour condenser for subsequent use again after secondary temperature-decreased pressure reducer and another branch road leads to air pre-heater.
The beneficial effects of the utility model: the utility model provides a kind of steam-turbine pipe-line system, utilize and existingly go the steam by-pass of vapour condenser for subsequent use and remove the intercommunity of steam by-pass two bypasses of air pre-heater and be integrated into a bypass, be the pressure being applicable to air pre-heater by the pressure adjusting of the steam by-pass one-level temperature-decreased pressure reducer removing vapour condenser for subsequent use, economize the steam by-pass of removing air pre-heater, after one-level temperature-decreased pressure reducer, steam is caused air pre-heater by branch, make steam pipework simpler, layout is more reasonable, can effectively reduce equipment investment and daily operating cost.
Accompanying drawing explanation
Fig. 1 is that existing steam-turbine pipe-line system arranges schematic diagram.
Fig. 2 is the layout schematic diagram of the steam-turbine pipe-line system embodiment that the utility model proposes.
In figure:
1 major steam line, 1.1 main pipelines, 1.2 main valves, 1.3 steam turbine, 1.4 main vapour condenser, 1.5 remove air pre-heater pipeline,
2 vapour condenser steam by-passes for subsequent use, 2.1 pipelines, 2.2 vapour condenser sub valves for subsequent use, 2.31 one-level temperature-decreased pressure reducers, 2.32 secondary temperature-decreased pressure reducers, 2.4 vapour condenser for subsequent use,
3 air pre-heater steam by-passes, 3.1 pipelines, 3.2 air pre-heater sub valves, 3.3 temperature-decreased pressure reducers, 3.4 air pre-heater.
Embodiment
Fig. 1 is that existing steam-turbine pipe-line system arranges schematic diagram.Show in figure, knownly to utilize in the steam-turbine pipe-line system of garbage incineration power generation, comprise major steam line 1, the steam by-pass 2 of vapour condenser for subsequent use, the steam by-pass 3 of air pre-heater.
Major steam line 1 mainly comprises pipeline 1.1, main valve 1.2, steam turbine 1.3, main vapour condenser 1.4 and leads to the steam pipework 1.5 of air pre-heater from bleeder steam mouth, before main valve 1.2 is arranged on steam turbine 1.3, after main vapour condenser 1.4 is arranged on steam turbine 1.3;
Vapour condenser steam by-pass 2 for subsequent use mainly comprises pipeline 2.1, vapour condenser sub valve 2.2 for subsequent use, one-level temperature-decreased pressure reducer 2.31, secondary temperature-decreased pressure reducer 2.32, vapour condenser for subsequent use 2.4;
Air pre-heater steam by-pass 3 mainly comprises pipeline 3.1, air pre-heater sub valve 3.2, temperature-decreased pressure reducer 3.3, air pre-heater 3.4.
When steam turbine 1.3 normally works, main valve 1.2 is opened, simultaneously by-pass valve 2.2,3.2 close, steam through major steam line 1 enter steam turbine 1.3 do work generating, then from steam turbine 1.3 bleeding point through steam pipework 1.5 by steam supply air pre-heater 3.4;
When steam turbine 1.3 is out of service, main valve 1.2 is closed, vapour condenser sub valve 2.2 for subsequent use, air pre-heater sub valve 3.2 are opened simultaneously, steam enters from two bypasses, and wherein a road steam enters one-level temperature-decreased pressure reducer 2.31 through the pipeline 2.1 of steam by-pass 2, secondary temperature-decreased pressure reducer 2.32 enters vapour condenser 2.4 for subsequent use; Another road steam enters air pre-heater 3.4 after the pipeline 3.1 of steam by-pass 3 enters temperature-decreased pressure reducer 3.3.
Prior art shows, although vapour condenser steam by-pass 2 for subsequent use and air pre-heater steam by-pass 3 comprise temperature-decreased pressure reducer all equally, but both independently lay pipeline, reason is the requirement that the vapor pressure after the one-level temperature-decreased pressure reducer 2.31 or secondary temperature-decreased pressure reducer 2.32 of vapour condenser steam by-pass 2 for subsequent use does not meet access air pre-heater 3.4.Therefore steam by-pass can only independently be laid.Problem is, two steam by-passes are independently laid, will exist pipeline complexity, vapour road layout unreasonable, increase the various problem such as equipment investment and daily operating cost.
Fig. 2 is the layout schematic diagram of the steam-turbine pipe-line system embodiment that the utility model proposes.Show in figure, unlike the prior art, the utility model utilizes the intercommunity of steam by-pass two bypasses of the steam by-pass of existing vapour condenser for subsequent use and air pre-heater and is integrated into a bypass, be the pressure being applicable to air pre-heater by the pressure adjusting of the steam by-pass one-level temperature-decreased pressure reducer of vapour condenser for subsequent use, economize the steam by-pass except air pre-heater, after one-level temperature-decreased pressure reducer, steam is linked into air pre-heater by lateral, make steam pipework simpler, layout is more reasonable, can effectively reduce equipment investment and daily operating cost.
Show in figure, in this example, a kind of steam-turbine pipe-line system, comprises the steam by-pass 2 of major steam line 1 and vapour condenser for subsequent use.
Major steam line 1 mainly comprises pipeline 1.1, main valve 1.2, steam turbine 1.3, main vapour condenser 1.4 and leads to the steam pipework 1.5 of air pre-heater from bleeder steam mouth, before main valve 1.2 is arranged on steam turbine 1.3, after main vapour condenser 1.4 is arranged on steam turbine 1.3.
Vapour condenser steam by-pass 2 for subsequent use mainly comprises pipeline 2.1, vapour condenser sub valve 2.2 for subsequent use, one-level temperature-decreased pressure reducer 2.31, secondary temperature-decreased pressure reducer 2.32, vapour condenser for subsequent use 2.4.Unlike the prior art, after one-level temperature-decreased pressure reducer 2.31, pipeline 3.1 is also laid by steam supply air pre-heater 3.4.Key issue is the pressure being applicable to access air pre-heater 3.4 by the pressure adjusting of one-level temperature-decreased pressure reducer 2.31.
When steam turbine 1.3 normally works, main valve 1.2 is opened, simultaneously by-pass valve 2.2 close, steam through major steam line 1 enter steam turbine 1.3 do work generating, then from steam turbine 1.3 bleeding point through steam pipework 1.5 by steam supply air pre-heater 3.4;
When steam turbine 1.3 is out of service, main valve 1.2 is closed, simultaneously vapour condenser sub valve 2.2 for subsequent use open, steam enters from vapour condenser steam by-pass 2 for subsequent use, vapour condenser 2.4 for subsequent use is entered through one-level temperature-decreased pressure reducer 2.31, secondary temperature-decreased pressure reducer 2.32, simultaneously, after one-level temperature-decreased pressure reducer 2.31, steam enters air pre-heater 3.4 through another lateral 3.1.
Claims (1)
1. a steam-turbine pipe-line system, comprise the steam by-pass of major steam line and vapour condenser for subsequent use, described major steam line mainly comprises main pipeline, main valve, steam turbine, main vapour condenser and lead to the steam pipework of air pre-heater from bleeder steam mouth, before main valve is arranged on steam turbine, after main vapour condenser is arranged on steam turbine, described vapour condenser steam by-pass for subsequent use mainly comprises pipeline, sub valve, one-level temperature-decreased pressure reducer, secondary temperature-decreased pressure reducer, vapour condenser for subsequent use, it is characterized in that, lateral is also laid by steam supply air pre-heater after the one-level temperature-decreased pressure reducer of vapour condenser steam by-pass for subsequent use,
When steam turbine normally works, main valve is opened, by-pass valve is closed, and steam enters steam turbine acting generating through described major steam line, then leads to air pre-heater by the road from bleeder steam mouth; When steam turbine is out of service, main valve is closed, by-pass valve is opened, steam is divided into two branch roads after described steam by-pass enters one-level temperature-decreased pressure reducer, and one of them branch road enters vapour condenser for subsequent use again after secondary temperature-decreased pressure reducer and another branch road leads to air pre-heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520112292.8U CN204572082U (en) | 2015-02-15 | 2015-02-15 | A kind of steam-turbine pipe-line system |
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| CN201520112292.8U CN204572082U (en) | 2015-02-15 | 2015-02-15 | A kind of steam-turbine pipe-line system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986845A (en) * | 2015-02-15 | 2016-10-05 | 深圳市能源环保有限公司 | Steam pipeline system of steam turbine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986845A (en) * | 2015-02-15 | 2016-10-05 | 深圳市能源环保有限公司 | Steam pipeline system of steam turbine |
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Address after: 13 / F, Times financial center, 4001 Shennan Avenue, Futian District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Energy and environmental protection Co.,Ltd. Address before: Shenzhen Nanshan District City, Guangdong province 518052 Chang Hing No. 83 21 floor Guoxing building Patentee before: SHENZHEN ENERGY ENVIRONMENTAL ENGINEERING Co.,Ltd. |