CN201747414U - Steam source device of extraction steam turbine - Google Patents
Steam source device of extraction steam turbine Download PDFInfo
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- CN201747414U CN201747414U CN2010202138653U CN201020213865U CN201747414U CN 201747414 U CN201747414 U CN 201747414U CN 2010202138653 U CN2010202138653 U CN 2010202138653U CN 201020213865 U CN201020213865 U CN 201020213865U CN 201747414 U CN201747414 U CN 201747414U
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- pressure steam
- steam
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- turbine
- low pressure
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Abstract
The utility model relates to a steam source device of an extraction steam turbine, comprising a low-pressure steam pipeline and a medium-pressure steam pipeline which are connected with a steam extractor pipeline of the turbine. In the utility model, medium-pressure steam is utilized as a supplement steam source of a steam extractor, thus being capable of effectively enabling the turbine to be started in advance, shortening production period and simultaneously bringing positive effects for the safe and stable operation of the turbine.
Description
Technical field
The utility model relates to steam turbine, relates in particular to a kind of vapour source apparatus of extraction turbine.
Background technique
Existing most extraction turbine working mechanism is to adopt low pressure steam to flow fast from the vapor extractor of steam turbine, and the vapor extractor hollow band of gas is walked, and forms vacuum, drives the steam turbine running; And vapor extractor divides startup vapor extractor and main vapor extractor, promptly enables the startup vapor extractor when steam turbine starts, and can make steam turbine form vacuum very soon; During ordinary production, start main vapor extractor, and a steam heat-exchanging of extracting out is that condensed fluid reclaims.
Therefore, vapor extractor, the level of vacuum that particularly starts vapor extractor is the key that extraction turbine 1 starts, because existing vapor extractor adopts low pressure steam 2 to do vacuum vapour source, as shown in Figure 1, at Qi Cheshi, need just to make extraction turbine 1 reach required degree of vacuum for a long time.
The model utility content
The utility model provides a kind of vapour source apparatus that steam turbine is started fast at above-mentioned the deficiencies in the prior art.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of vapour source apparatus of extraction turbine, include the low pressure steam pipeline that is connected with the vapor extractor pipeline of steam turbine, this vapour source apparatus also includes Medium Pressure Steam Pipeline, and described Medium Pressure Steam Pipeline is connected with the vapor extractor pipeline.
Preferably, described Medium Pressure Steam Pipeline and low pressure steam pipeline are connected in parallel, and are connected with the vapor extractor pipeline again.
Preferably, described Medium Pressure Steam Pipeline is connected in parallel via valve and low pressure steam pipeline.
Compared with prior art, the advantage that the utlity model has: utilize the additional source of the gas of medium pressure steam, can steam turbine be started in advance, saved the manufacture cycle as vapor extractor; Simultaneously the steam turbine safe and stable operation has been brought good effect.Only 250,000 tons of parkings in 2009 are by 15 times, each medium pressure steam that uses can be driven 30 minutes at least in advance, output is by 30 tons/hour, and methanol prices is only saved the driving time every year and just can be created following benefit: 15 * 0.5 * 30 * 2000=450000 unit with 2000 yuan of/ton calculations.
Description of drawings
Fig. 1 is the structural representation of existing steam turbine vapour source apparatus;
Fig. 2 is the utility model structural representation;
Description of reference numerals:
The 1-extraction turbine;
2-low pressure steam pipeline;
The 3-Medium Pressure Steam Pipeline.
Embodiment
A kind of vapour source apparatus of extraction turbine includes the low pressure steam pipeline that is connected with the vapor extractor pipeline of steam turbine, and this vapour source apparatus also includes Medium Pressure Steam Pipeline, and described Medium Pressure Steam Pipeline is connected with the vapor extractor pipeline.
The power of vapor extractor mainly comes from low pressure steam, and low pressure steam flows in vapor extractor fast, could take away air.If low pressure steam underpressure; just there is not enough power; at these situations; the utility model adopts medium pressure steam as the fair source of the gas of the benefit of low pressure steam; so just can effectively solve this problem; promptly shortened and opened the machine time, can when low pressure steam pressure is low, protect the steam turbine safe and stable operation again.
Below in conjunction with drawings and Examples the utility model is further described.
The vapour source apparatus of a kind of extraction turbine as shown in Figure 2, include the low pressure steam pipeline 2 that is connected with vapor extractor pipeline in the steam turbine 1, this vapour source apparatus also includes Medium Pressure Steam Pipeline 3, and described Medium Pressure Steam Pipeline 3 is connected with vapor extractor pipeline in the steam turbine 1.Medium Pressure Steam Pipeline 3 is connected in parallel with low pressure steam pipeline 2, is connected with the vapor extractor pipeline.Wherein, Medium Pressure Steam Pipeline 3 is connected in parallel via valve and low pressure steam pipeline 2.
As shown in Figure 2, therefrom press steam pipe system to draw ∮ 25 pipelines, add valve on the other hand to bleeder steam device low pressure steam pipeline, by hand valve control medium pressure steam addition, the low pressure steam pipeline has pressure gauge, adjusts the medium pressure steam addition, prevents low pressure steam pipeline superpressure.General low pressure steam pressure can satisfy job requirement at 0.6MPa～0.8MPa.
Utilize the additional source of the gas of medium pressure steam, can steam turbine be started in advance, saved the manufacture cycle as vapor extractor; Simultaneously the steam turbine safe and stable operation has been brought good effect.Only 250,000 tons of parkings in 2009 are by 15 times, each medium pressure steam that uses can be driven 30 minutes at least in advance, output is by 30 tons/hour, and methanol prices is only saved the driving time every year and just can be created following benefit: 15 * 0.5 * 30 * 2000=450000 unit with 2000 yuan of/ton calculations.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the vapour source apparatus of an extraction turbine includes the low pressure steam pipeline that is connected with the vapor extractor pipeline of steam turbine, it is characterized in that: this vapour source apparatus also includes Medium Pressure Steam Pipeline, and described Medium Pressure Steam Pipeline is connected with the vapor extractor pipeline.
2. vapour source apparatus as claimed in claim 1 is characterized in that: described Medium Pressure Steam Pipeline and low pressure steam pipeline are connected in parallel, and are connected with the vapor extractor pipeline again.
3. vapour source apparatus as claimed in claim 2 is characterized in that: described Medium Pressure Steam Pipeline is connected in parallel via valve and low pressure steam pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138653U CN201747414U (en) | 2010-05-31 | 2010-05-31 | Steam source device of extraction steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202138653U CN201747414U (en) | 2010-05-31 | 2010-05-31 | Steam source device of extraction steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747414U true CN201747414U (en) | 2011-02-16 |
Family
ID=43582097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202138653U Expired - Fee Related CN201747414U (en) | 2010-05-31 | 2010-05-31 | Steam source device of extraction steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775858A (en) * | 2015-04-15 | 2015-07-15 | 钱诚 | Intermediate-pressure cylinder rapid starting system for thermal power generation unit set |
| CN104775857A (en) * | 2015-04-15 | 2015-07-15 | 钱诚 | High-pressure cylinder rapid starting system for thermal power generation unit set |
-
2010
- 2010-05-31 CN CN2010202138653U patent/CN201747414U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775858A (en) * | 2015-04-15 | 2015-07-15 | 钱诚 | Intermediate-pressure cylinder rapid starting system for thermal power generation unit set |
| CN104775857A (en) * | 2015-04-15 | 2015-07-15 | 钱诚 | High-pressure cylinder rapid starting system for thermal power generation unit set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20140531 |