CN202031656U - Special turbine for saturated steam - Google Patents
Special turbine for saturated steam Download PDFInfo
- Publication number
- CN202031656U CN202031656U CN2011201216522U CN201120121652U CN202031656U CN 202031656 U CN202031656 U CN 202031656U CN 2011201216522 U CN2011201216522 U CN 2011201216522U CN 201120121652 U CN201120121652 U CN 201120121652U CN 202031656 U CN202031656 U CN 202031656U
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- China
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- special
- steam turbine
- moving vane
- saturated vapour
- purpose steam
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Abstract
The utility model relates to a special turbine for saturated steam, which comprises a base frame. A front cylinder and a rear cylinder are mounted on the base frame, a drainage hole is arranged at the bottom of the front cylinder, water in the turbine flows out from the drainage hole, rotors are arranged in the front cylinder and the rear cylinder, multiple stages of impellers are mounted on the rotors, each impeller comprises an impeller seat and movable blades, one end of each impeller seat is connected with each rotor, each impeller seat is connected with the movable blades, drainage grooves are arranged on the movable blades, a partition board is disposed between each two impellers, and one end of each partition board is connected with a shell wall of the front cylinder. The special turbine for saturated steam leads condensed water carried by the steam to smoothly flow until being guided out of the turbine during advancing, avoids any impact actions, and finally resolves the problem of cavitation of the condensed water in the gasified cooling saturated steam at the top of a converter to a turbine body.
Description
Technical field
The utility model relates to a kind of steam turbine, particularly relates to a kind of special-purpose steam turbine that can be applicable to saturated vapour.
Background technique
The work of energy chain extension is present in industry-by-industry, at present, domestic steel industry, originally discharge amount is big, the energy that the technical finesse difficulty is low, substantially all obtained reasonable utilization now, for example: blast furnace TRT top pressure power generation, coal gas (blast furnace gas, coal gas of converter and coke-stove gas) reclaim by gas fired boiler generation steam and generate electricity ... Deng, but the steam that converter furnace roof vaporization cooling is produced, its characteristics are except the fluctuation that the periodicity because of the manufacture cycle produces, maximum characteristics are exactly to be saturated vapour, but because of its quantity relatively little, the reason of most critical is existence-" based on the mentality of designing of saturated vapour specific volume characteristics and the saturated vapour solution to cavitation of blade " of technical bottleneck, make it all can't well utilize (no successful case) so far, substantially all carry out the utilization (utilization of production technology link of low value, heating, cook in the dining room, have a bath ... Deng) or directly discharging, still not a kind of great waste, and atmosphere caused serious thermo-pollution.
And the characteristics of converter furnace roof vaporization cooling saturated vapour are exactly: 1) for superheated vapor, the specific volume of saturated vapour is bigger, mechanical efficiency is low, if the mentality of designing according to superheated vapor designs, and utilization is saturated vapour working medium, can cause acting not reach designing requirement, exert oneself and rated power has big gap; 2) it is in saturation state, can produce a large amount of water of condensation after the expansion acting is carried in the steam, if utilize steam turbine to carry out the conversion of energy, a large amount of water will wash away blade and runner generation, body is caused structural destruction, common steam turbine can't proper functioning, can't realize smoothly thereby the energy is transformed.
The model utility content
The purpose of this utility model is to provide a kind of and is suitable for converter furnace roof vaporization cooling saturated vapour, solves the cavitation problem of converter furnace roof vaporization cooling saturated vapour to turbine blade and runner, the special-purpose steam turbine of the saturated vapour that the purpose that makes the energy transform is realized smoothly.
The special-purpose steam turbine of the utility model saturated vapour comprises:
Pedestal is equipped with preceding cylinder, exhaust casing on the described pedestal; Cylinder is a hollow design before described, and an end of described preceding cylinder is communicated with steam inlet device, and described preceding cylinder bottom is provided with weep hole; Water in the steam turbine flows out through this weep hole, and exhaust casing is hollow design, and the other end of described preceding cylinder is communicated with described exhaust casing.The special-purpose steam turbine of described saturated vapour also comprises front steam seal and back packing.
Be provided with rotor in cylinder and the exhaust casing before described, on the described rotor multi-stage impeller be installed; Described impeller comprises impeller base and moving vane, and an end of described impeller base is connected with described rotor, is connected with moving vane on the described impeller base, and described moving vane is provided with drain tank; Described impeller base is provided with equalizing orifice, and this equalizing orifice is used for the pressure of a large amount of saturated vapours of balance, plays buffer function; Be provided with dividing plate between every grade of described impeller, described dividing plate is provided with stator blade, is provided with steam passage between the described stator blade, and an end of described dividing plate is connected with the shell wall of described preceding cylinder; Described dividing plate is provided with diaphragm gland, and the size of diaphragm gland and dividing plate is complementary.
As a kind of preferred version of the present utility model, the drain tank cross section on the described moving vane is Y type or U type, generally speaking, described drain tank skew moving vane center line 0 ~ 1.5mm, Y type drain tank technology is simple, but carrying capacity is few, the U type drain tank water yield is big, but the technology difficulty.
As a kind of preferred version of the present utility model, the described final stage of removing is provided with terminal shroud with the moving vane tail end of out rotor, and an end of terminal shroud is provided with boss.
As a kind of preferred version of the present utility model, described terminal shroud is for carrying shroud, carries shroud and moving vane is formed in one, more firm and durable.
As a kind of preferred version of the present utility model, described impeller is nine grades.
As a kind of preferred version of the present utility model, described the 6th grade, the 7th grade, the 8th grade moving vane is provided with and carries shroud, and all the other described moving vanes at different levels are provided with terminal shroud, and an end of terminal shroud is provided with boss.
As a kind of preferred version of the present utility model, the moving vane surface that described level V to the is eight grades adopts the electricity cremate to strengthen, and welding officials Tai Lie alloy slice is shock-resistant on the described afterbody moving vane.
As a kind of preferred version of the present utility model, described first order moving vane to the drain tank cross section of level V moving vane is the Y type; The drain tank cross section of nine grades of moving vanes of described the 6th grade of moving vane to the is the U type.
The special-purpose steam turbine of the utility model saturated vapour is applicable to the operation of 0.3-0.9MPa saturated vapour parameter safety, utilize building up principle in the running, make the entrained moisture that condenses of saturated vapour under action of centrifugal force, get rid of to the cylinder shell wall, after the weep hole outflow through drain tank.
The utility model adds the cavitation design of setting up defences, and the current in the working steam are in time derived, and improves steam quality, has significantly reduced the impact of current to moving vane, thereby improves the life-span of moving vane.The moving vane surface adopts the electricity cremate to strengthen, and the anti-water brush ability of moving vane is greatly improved.The utility model can make full use of the energy, installs simple.
Description of drawings
Fig. 1 partly cuts open schematic representation for the electricity generating device overall structure that the special-purpose steam turbine of the utility model saturated vapour is installed.
Fig. 2 is the special-purpose steam turbine generalized section of the utility model saturated vapour.
Fig. 3 is the special-purpose steam turbine blade schematic representation of the utility model saturated vapour.
Reference character is as follows.
5 impeller bases, 6 moving vanes, 8 weep holes, 9 rotors
10 steam inlet devices, 11 pedestals, 12 front steam seals, 13 back packings
14 equalizing orifices, 15 terminal shrouds 16 carry shroud 17 stator blades.
Embodiment
Below in conjunction with accompanying drawing the special-purpose steam turbine of the utility model saturated vapour is described in further detail.
As shown in Figure 1 and Figure 2, the special-purpose steam turbine of the utility model saturated vapour comprises pedestal 11, cylinder 1, exhaust casing 2 before being equipped with on the described pedestal 11; Preceding cylinder 1 is a hollow design, and an end of preceding cylinder 1 is communicated with steam inlet device 10, and described preceding cylinder 1 bottom is provided with weep hole 8; Exhaust casing 2 is a hollow design, and the other end of preceding cylinder 1 is communicated with exhaust casing 2; The special-purpose steam turbine of described saturated vapour also comprises front steam seal and back packing.
Be provided with rotor 9 in preceding cylinder 1 and the exhaust casing 2,9 grades of impellers are installed on the rotor 9; Described impeller comprises impeller base 5 and moving vane 6, and an end of impeller base 5 is connected with rotor 9, is connected with moving vane 6 on the impeller base 5, and moving vane 6 is provided with drain tank; Impeller base 5 is provided with equalizing orifice 14, and this equalizing orifice 14 is used for the pressure of a large amount of saturated vapours of balance, plays buffer function; Be provided with dividing plate 3 between every grade of described impeller, described dividing plate 3 is provided with stator blade 17, is provided with steam passage 4 between the described stator blade 17, and an end of dividing plate 3 is connected with the shell wall of preceding cylinder 1; Described dividing plate 3 is provided with diaphragm gland, and the size of diaphragm gland and dividing plate 3 is complementary.
As shown in Figure 3, the 6th grade, the 7th grade, the 8th grade moving vane 6(6f, 6g, 6h) be provided with and carry shroud 16, be used to alleviate the impact force that steam brings, all the other moving vanes at different levels 6 except that the 9th grade are provided with terminal shroud 15, and an end of terminal shroud 15 is provided with boss.
Described first order moving vane to the drain tank cross section on the level V moving vane (6a, 6b, 6c, 6d, 6e) is the Y type; Drain tank cross section on described nine grades of moving vanes of the 6th grade of moving vane to the (6f, 6g, 6h, 6i) is the U type.
The surface of eight grades of moving vane 6h of level V moving vane 6e to the adopts the electricity cremate to strengthen; The 9th grade of moving vane 6i goes up welding officials Tai Lie alloy slice.Dividing plate 3 is provided with diaphragm gland, in order to the leakage vapour between reducing every grade.
During work, regulate the saturated vapour of porthole by steam inlet device 10, through the nozzle puffing, acting in moving vane 6, vapor (steam) temperature reduces humidity and increases, and is to solve the cavitation of blade problem that saturated steam wetness causes greatly, make in the water vapour current under action of centrifugal force through drain tank, get rid of into the cylinder shell wall, after the weep hole outflow.
Claims (11)
1. the special-purpose steam turbine of saturated vapour is characterized in that, comprising:
Pedestal is equipped with preceding cylinder, exhaust casing on the described pedestal;
Cylinder is a hollow design before described, and an end of described preceding cylinder is communicated with steam inlet device, and described preceding cylinder bottom is provided with weep hole;
Exhaust casing is hollow design, and the other end of described preceding cylinder is communicated with described exhaust casing;
Be provided with rotor in cylinder and the exhaust casing before described, on the described rotor multi-stage impeller be installed;
Described impeller comprises impeller base and moving vane, and an end of described impeller base is connected with described rotor, is connected with moving vane on the described impeller base, and described moving vane is provided with drain tank;
Be provided with dividing plate between every grade of described impeller, described dividing plate is provided with stator blade, and an end of described dividing plate is connected with the shell wall of described preceding cylinder.
2. the special-purpose steam turbine of saturated vapour according to claim 1 is characterized in that the cross section of described drain tank is Y type or U type.
3. the special-purpose steam turbine of saturated vapour according to claim 2 is characterized in that described drain tank is offset described moving vane center line 0 ~ 1.5mm.
4. the special-purpose steam turbine of saturated vapour according to claim 1 is characterized in that, is provided with steam passage between the described stator blade.
5. the special-purpose steam turbine of saturated vapour according to claim 1 is characterized in that, the described final stage of removing is provided with terminal shroud with the moving vane tail end of out rotor.
6. the special-purpose steam turbine of saturated vapour according to claim 5 is characterized in that described terminal shroud is for carrying shroud.
7. the special-purpose steam turbine of saturated vapour according to claim 1 is characterized in that described impeller is nine grades.
8. the special-purpose steam turbine of saturated vapour according to claim 7 is characterized in that described the 6th grade, the 7th grade, the 8th grade moving vane is provided with and carries shroud, and all the other described moving vanes at different levels are provided with terminal shroud, and an end of terminal shroud is provided with boss.
9. the special-purpose steam turbine of saturated vapour according to claim 7 is characterized in that, the moving vane surface that described level V to the is eight grades adopts the electricity cremate to strengthen.
10. according to claim 1 or the special-purpose steam turbine of 7 described saturated vapours, it is characterized in that welding officials Tai Lie alloy slice on the described afterbody moving vane.
11. the special-purpose steam turbine of saturated vapour according to claim 7 is characterized in that described first order moving vane to the cross section of the drain tank of level V moving vane is the Y type; The cross section of the drain tank of nine grades of moving vanes of described the 6th grade of moving vane to the is the U type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201216522U CN202031656U (en) | 2011-04-22 | 2011-04-22 | Special turbine for saturated steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201216522U CN202031656U (en) | 2011-04-22 | 2011-04-22 | Special turbine for saturated steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031656U true CN202031656U (en) | 2011-11-09 |
Family
ID=44893958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201216522U Expired - Fee Related CN202031656U (en) | 2011-04-22 | 2011-04-22 | Special turbine for saturated steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168583A (en) * | 2011-04-22 | 2011-08-31 | 上海哈能环保节能工程有限公司 | Steam turbine special for saturated steam |
| CN108204253A (en) * | 2016-12-20 | 2018-06-26 | 上海电气电站设备有限公司 | The cylinder of steam turbine |
-
2011
- 2011-04-22 CN CN2011201216522U patent/CN202031656U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168583A (en) * | 2011-04-22 | 2011-08-31 | 上海哈能环保节能工程有限公司 | Steam turbine special for saturated steam |
| CN102168583B (en) * | 2011-04-22 | 2014-03-26 | 上海哈能环保节能工程有限公司 | Steam turbine special for saturated steam |
| CN108204253A (en) * | 2016-12-20 | 2018-06-26 | 上海电气电站设备有限公司 | The cylinder of steam turbine |
| CN108204253B (en) * | 2016-12-20 | 2020-05-26 | 上海电气电站设备有限公司 | Cylinder for steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20190422 |