CN202370588U - Single-stage steam turbine - Google Patents
Single-stage steam turbine Download PDFInfo
- Publication number
- CN202370588U CN202370588U CN201120304101XU CN201120304101U CN202370588U CN 202370588 U CN202370588 U CN 202370588U CN 201120304101X U CN201120304101X U CN 201120304101XU CN 201120304101 U CN201120304101 U CN 201120304101U CN 202370588 U CN202370588 U CN 202370588U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- stage
- impeller
- turbine rotor
- steam turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A single-stage steam turbine comprises a cylinder. The cylinder is internally provided with a turbine rotor horizontally. The turbine rotor is only provided with a single-stage velocity-compounded impeller. The impeller is fixed on the turbine rotor through a sleeve. A nozzle is fixed on an upper semi-circumference of the front half part of the cylinder. The impeller is provided with a velocity-compounded structure which is composed of two rows of moving blades. A guide blade ring which is used for changing the direction of the steam flow is provided between the first row of moving blade and the second row of blade. The guide blade ring is inserted into the inner wall of the cylinder. The single-stage steam turbine has the following advantages: simple and light structure, low cost, convenient and reliable operation, high back pressure, large heat drop, small flow rate and high rotation speed.
Description
Technical field
The utility model relates to the steam turbine technology field, specifically a kind of single-stage steam turbine.
Background technique
Be used to drag the small-power steam turbine of water pump, auxiliary oil pump, induced draught fan, gas fan, feed water pump for some, simple light and handy, floor space is little, and low price is its problem of mainly considering, so the single-stage steam turbine is first-selected.The existing single-stage steam turbine forms that adopt an impulse pressure level, though its relative efficiency is higher, thermal efficiency of cycle is low, and the specific steam consumption of pressure level unit is bigger more.And, existing single-stage steam turbine complex structure, assembling process is more loaded down with trivial details, and installation and maintenance are inconvenient, cause installation period and maintenance period longer, are unfavorable for producing using.
The model utility content
The utility model technical problem to be solved provides a kind of compact structure, single-stage steam turbine easy for installation, with a biserial velocity-compounded stage steam regulation enthalpy drop, realizes that heat energy is to mechanical transformation of energy.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: the single-stage steam turbine; Comprise cylinder; Level is provided with turbine rotor in cylinder, only is provided with a single-stage Curtis wheel on the turbine rotor, and impeller is fixed on the turbine rotor through sleeve; Nozzle is fixed on the upper semicircumference of cylinder front half part; Two row moving vanes are installed on impeller constitute the velocity-compounded stage structure, between the first row moving vane and secondary series moving vane, be provided with the guide vane ring that is used to change the steam flow direction, guide vane ring is embedded on the inwall of cylinder.
The beneficial effect of the utility model is: adopt fixedly impeller of telescopic structure, simple in structure light and handy, with low cost, move convenient and reliable, and, compact structure, easy to operate, safe and reliable, safeguard simply; These novel the most effectively characteristics are: the structure that adopts single-stage biserial velocity-compounded stage formula; Has high back pressure; Big heat drop, small flow and high-revolving advantage are compared with the impulse pressure level; Its BTHE is the twice of impulse pressure level, and specific steam consumption is merely 1/3rd of impulse pressure level.Another advantage of this kind structure is exactly: the unit matching performance is good, and Installation and Debugging are convenient, and factory building is arranged compact, can save power plant's investment, shortens the construction period, increases investment returns.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Mark among the figure: 1, cylinder, 2, turbine rotor, 3, impeller, 4, sleeve, 5, nozzle, 6, the first row moving vane, 7, the secondary series moving vane, 8, guide vane ring.
Embodiment
As shown in the figure, the single-stage steam turbine comprises cylinder 1; Level is provided with turbine rotor 2 in cylinder 1, only is provided with a single-stage Curtis wheel 3 on the turbine rotor 2, and impeller 3 is fixed on the turbine rotor 2 through sleeve 4; Nozzle 5 is fixed on the upper semicircumference of cylinder 1 front half part; What the impeller 3 of single-stage adopted is the structure of velocity-compounded stage formula, and two row moving vanes promptly are installed on an impeller, between the first row moving vane 6 and secondary series moving vane 7, is provided with and makes the guide vane ring 8 that turns to; Play the effect that changes the steam flow direction, guide vane ring 8 is embedded on the inwall of cylinder 1.Main steam is through after the acceleration of nozzle 5, and high velocity vapor gets into the first row moving vane 6, impacts the 6 rotation actings of the first row moving vane; Impeller 3 is rotated with turbine rotor 2 simultaneously, and the steam that flows out from the first row moving vane 6 also has certain enthalpy, through after the leading role of guide vane ring 8; Change has taken place in the direction of high speed steam flow; Impact secondary series moving vane 7 and continue acting, drive turbine rotor 2 rotation actings, realize the conversion of energy.
Claims (1)
1. single-stage steam turbine; Comprise cylinder (1); Level is provided with turbine rotor (2) in cylinder (1), only is provided with a single-stage Curtis wheel (3) on the turbine rotor (2), and impeller (3) is fixed on the turbine rotor (2) through sleeve (4); Nozzle (5) is fixed on the upper semicircumference of cylinder (1) front half part; Two row moving vanes are installed on impeller (3) constitute the velocity-compounded stage structure, between the first row moving vane (6) and secondary series moving vane (7), be provided with the guide vane ring (8) that is used to change the steam flow direction, guide vane ring (8) is embedded on the inwall of cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120304101XU CN202370588U (en) | 2011-08-19 | 2011-08-19 | Single-stage steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120304101XU CN202370588U (en) | 2011-08-19 | 2011-08-19 | Single-stage steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370588U true CN202370588U (en) | 2012-08-08 |
Family
ID=46594294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120304101XU Expired - Lifetime CN202370588U (en) | 2011-08-19 | 2011-08-19 | Single-stage steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379599A (en) * | 2020-04-24 | 2020-07-07 | 中国船舶重工集团公司第七0四研究所 | Structure of ship single-stage steam turbine cylinder and steering guide vane ring integrated |
| CN112343676A (en) * | 2019-08-07 | 2021-02-09 | 江苏海事职业技术学院 | Back pressure type steam turbine equipment |
-
2011
- 2011-08-19 CN CN201120304101XU patent/CN202370588U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343676A (en) * | 2019-08-07 | 2021-02-09 | 江苏海事职业技术学院 | Back pressure type steam turbine equipment |
| CN111379599A (en) * | 2020-04-24 | 2020-07-07 | 中国船舶重工集团公司第七0四研究所 | Structure of ship single-stage steam turbine cylinder and steering guide vane ring integrated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |