CN205805619U - A kind of back pressure turbine of slow-speed of revolution low voltage difference - Google Patents
A kind of back pressure turbine of slow-speed of revolution low voltage difference Download PDFInfo
- Publication number
- CN205805619U CN205805619U CN201620671766.7U CN201620671766U CN205805619U CN 205805619 U CN205805619 U CN 205805619U CN 201620671766 U CN201620671766 U CN 201620671766U CN 205805619 U CN205805619 U CN 205805619U
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- speed
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- cylinder
- shaft
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Abstract
The utility model discloses the back pressure turbine of a kind of slow-speed of revolution low voltage difference, including base, cylinder, clutch shaft bearing seat, second bearing block, main shaft and mounting, described base top is respectively provided on two sides with mounting and the second bearing block, and mounting and the second bearing block are fixing with base is connected, clutch shaft bearing seat is installed on described mounting, described Curtis wheel blade includes impeller and blade, described impeller is connected by key and threaded engagement are fixing with main shaft, impeller outer edge is provided with blade, blade is embedded on impeller by T-shaped blade root, Curtis wheel blade and main shaft are collectively forming main shaft general assembly, it is provided with nozzle sets in described cylinder and turns to guide vane ring, nozzle sets and turn to guide vane ring to pass through bolt to be connected with cylinder.The normal turbine speed of this utility model is 3000 r/min, couples with dragged equipment after speed regulator is decelerated to 1500r/min, eliminates gear-box and Lubricating-oil Station, and Steam Turbine is installed and maintenance is convenient, saves installing space.
Description
Technical field
This utility model relates to back pressure turbine technical field, particularly relates to the back pressure type vapour of a kind of slow-speed of revolution low voltage difference
Turbine.
Background technology
Traditional extraction steam turbine is a kind of machinery that the heat energy of steam is converted into mechanical energy.Using at present
In medium and small extraction steam turbine generally have that power consumption is high, it is big to pollute, parts are lengthy and tedious, operate inconvenient, inefficient etc. no
Foot, foundation national energy-saving reduces discharging the regulation of policy, and closing little thermoelectricity generating set is country's set policy strategy, the joint to country
Can require to improve constantly and the enhancing day by day of environmental consciousness, existing steamer reliability and safety can not be guaranteed, during work
The rotating speed of steam turbine very fast, start and stop to bother very much, to this end, the utility model proposes a kind of slow-speed of revolution low voltage difference
Back pressure turbine, makes improvement for the deficiencies in the prior art.
Utility model content
The purpose of this utility model is to solve shortcoming present in prior art, and a kind of slow-speed of revolution low pressure proposed
The back pressure turbine of difference.
To achieve these goals, this utility model adopts the technical scheme that
The back pressure turbine of a kind of slow-speed of revolution low voltage difference, including base, cylinder, clutch shaft bearing seat, the second bearing block, master
Axle and mounting, described base top is respectively provided on two sides with mounting and the second bearing block, and mounting and the second bearing block are with base admittedly
Fixed connection, described mounting is provided with clutch shaft bearing seat, and mounting is connected by feather key with clutch shaft bearing seat, described clutch shaft bearing
Being mounted on thin-wall bearing shell on seat and the second bearing block, described thin-wall bearing shell is provided with main shaft, described clutch shaft bearing seat and second
Being provided with cylinder between bearing block, and main shaft is through in cylinder, described main shaft is provided with shaft coupling near one end of the second bearing block,
Described main shaft is provided with expanded shaft near one end of clutch shaft bearing seat, expanded shaft is provided with measure speed gears and emergency governor, overspeed governor, connects
One end of major axis is provided with speed regulator end shaft coupling, and the main shaft in described clutch shaft bearing seat is provided with deep groove ball bearing, described main shaft
Middle part be provided with Curtis wheel blade, described Curtis wheel blade includes that impeller and blade, described impeller pass through with main shaft
Key and the fixing connection of threaded engagement, impeller outer edge is provided with blade, and blade is embedded on impeller by T-shaped blade root, Curtis wheel
Blade and main shaft are collectively forming main shaft general assembly, be provided with nozzle sets and turn to guide vane ring in described cylinder, nozzle sets and turn to stator
Ring is connected with cylinder by bolt.
Preferably, the part that described main shaft is connected with clutch shaft bearing seat and the second bearing block is respectively provided with two discs.
Preferably, including vaporium in described cylinder, the both sides of described cylinder are equipped with a main inlet throttle-stop valve.
Preferably, one end of described main inlet throttle-stop valve is provided with speed regulator.
Preferably, described disc is equipped with bearing.
Preferably, described cylinder is provided with packing with the junction of main shaft.
In this utility model, normal turbine speed is 3000 r/min, with quilt after speed regulator is decelerated to 1500r/min
Driven equipment couples, and eliminates gear-box and Lubricating-oil Station, and Steam Turbine is installed and maintenance is convenient, saves installing space.Steamer
The normal working speed of unit is between 1000 r/min to 1500r/min, and working speed is low, and steam turbine starts and stops especially
Convenient.Meanwhile, the also addition of emergency governor, overspeed governor, substantially increase the security performance of machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the back pressure turbine of a kind of slow-speed of revolution low voltage difference that the utility model proposes.
In figure: 1 speed regulator end shaft coupling, 2 clutch shaft bearing seats, 3 expanded shafts, 4 emergency governor, overspeed governors, 5 deep groove ball bearings, 6 axles
Hold, 7 discs, 8 packings, 9 Curtis wheel blades, 10 cylinders, 11 main shafts, 12 shaft couplings, 13 second bearing blocks, 14 bases,
15 turn to guide vane ring, 16 nozzle sets, 17 mountings, 18 feather keys.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.
With reference to Fig. 1, the back pressure turbine of a kind of slow-speed of revolution low voltage difference, including base, cylinder, clutch shaft bearing seat, second
Bearing block, main shaft and mounting, base 14 top is respectively provided on two sides with mounting 17 and the second bearing block 13, and mounting 17 and the second axle
Bearing 13 is fixing with base 14 to be connected, and mounting 17 is provided with clutch shaft bearing seat 2, and mounting 17 and clutch shaft bearing seat 2 are by guiding
Key 18 connects, and clutch shaft bearing seat 2 and the second bearing block 13 are mounted on thin-wall bearing shell, and described thin-wall bearing shell is provided with main shaft
11, it is provided with cylinder 10 between clutch shaft bearing seat 2 and the second bearing block 13, and main shaft 11 is through in cylinder 10, main shaft 11 is close
One end of second bearing block 13 is provided with shaft coupling 12, and main shaft 11 is provided with expanded shaft 3, expanded shaft 3 near one end of clutch shaft bearing seat 2
On measure speed gears and emergency governor, overspeed governor 4 are installed, one end of expanded shaft 3 is provided with speed regulator end shaft coupling 1, in clutch shaft bearing seat 2
Main shaft 11 be provided with deep groove ball bearing 5, the middle part of main shaft 11 is provided with Curtis wheel blade 9, and Curtis wheel blade 9 includes
Impeller and blade, impeller is connected by key and threaded engagement are fixing with main shaft 11, and impeller outer edge is provided with blade, and blade is by T-shaped
Blade root is embedded on impeller, and Curtis wheel blade 9 and main shaft 11 are collectively forming main shaft 11 general assembly, are provided with nozzle sets in cylinder 10
16 and turn to guide vane ring 15, nozzle sets 16 and turn to guide vane ring 15 to be connected with cylinder 10 by bolt.It is provided with spray in cylinder 10
Mouth group 16 and turn to guide vane ring 15, is connected with cylinder 10 by bolt, and nozzle sets 16 is molded line nozzle, and nozzle side is cylinder 10
Vaporium, opposite side is first order blade, and the thermal energy of steam is exactly kinetic energy by the effect of nozzle.Blade can be in spray
The kinetic energy that mouth group 16 produces is converted to mechanical energy.Main inlet throttle-stop valve front end is provided with speed regulator, and speed regulator can regulate rotating speed, makes steam turbine
Keeping stabilization of speed, precision is high, it is achieved the cascade utilization of steam.Reach energy-conservation effect.During operation, steam enters through entering isolating valve
Enter steam turbine main inlet throttle-stop valve, then by regulation valve entrance vaporium by nozzle, heat energy is become by steam expansion work in nozzle
Speed can rush at first row moving vane with the speed of supersonic speed 600-900m/s, from first row moving vane high speed steam flow out again
Guide vane ring is turned to change to turn to and expand acceleration further and be redirected into secondary series moving vane and promote impeller again by fixing
Rotating, impeller set, in rotating shaft, rotates together, then by shaft coupling 12 Driving Fan or water pump.
In this utility model, the emergency governor, overspeed governor 4 the produced centrifugal force of flyball when rated speed, in emergency governor, overspeed governor 4
Less than the pretightning force of spring, as the 110%-112% that rotating speed is normal rating rotating speed, centrifugal force will be greater than initial tension of spring and hits
Going out, reduce due to centrifugal force after rotating speed reduces, flyball is returned to origin-location under spring force, when flyball hits, beats
Hit hitting on bar at linkage, thus cause whole connecting rod action, drive the axis of rotation on Turbine Steam valve assembly, make
Main inlet throttle-stop valve is threaded off and is closed rapidly.Three select two redundant electronic protection devices to select three intelligent revolution meter, employing three to select the side of two
Method is controlled, and in use, rotary speed information is passed to tachoscope by tachogenerator, and programmable device is according to tachoscope detection case
Carry out computing, send instruction control electric magnet, close speed by stop valve and close main inlet throttle-stop valve, even if event occurs in an intelligent revolution meter
Barrier, also will not make system malfunction shut down.
In this utility model, the part that main shaft 11 is connected with clutch shaft bearing seat 2 and the second bearing block 13 is respectively provided with two and gets rid of
Oil ring 7, includes vaporium in cylinder 10, the both sides of cylinder 10 are equipped with a main inlet throttle-stop valve, and one end of main inlet throttle-stop valve is provided with speed governing
Device, disc 7 is equipped with bearing 6, and cylinder 10 is provided with packing 8 with the junction of main shaft 11, and normal turbine speed is 3000
R/min, couples with dragged equipment after speed regulator is decelerated to 1500r/min, eliminates gear-box and Lubricating-oil Station, Steam Turbine
Install and maintenance is convenient, save installing space.The normal working speed of Steam Turbine 1000 r/min to 1500r/min it
Between, working speed is low, and steam turbine starts and stops particularly convenient.Meanwhile, also the addition of emergency governor, overspeed governor, substantially increases machine
The security performance of device.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art is in the technical scope that this utility model discloses, according to this practicality
Novel technical scheme and utility model thereof conceive equivalent or change in addition, all should contain at protection model of the present utility model
Within enclosing.
Claims (6)
1. a back pressure turbine for slow-speed of revolution low voltage difference, including base (14), cylinder (10), clutch shaft bearing seat (2), second
Bearing block (13), main shaft (11) and mounting (17), it is characterised in that described base (14) top is respectively provided on two sides with mounting (17)
With the second bearing block (13), and mounting (17) and the second bearing block (13) are fixing with base (14) is connected, on described mounting (17)
Being provided with clutch shaft bearing seat (2), mounting (17) is connected by feather key (18) with clutch shaft bearing seat (2), described clutch shaft bearing seat
(2) being mounted on thin-wall bearing shell on and the second bearing block (13), described thin-wall bearing shell is provided with main shaft (11), described clutch shaft bearing
It is provided with cylinder (10) between seat (2) and the second bearing block (13), and main shaft (11) is through in cylinder (10), described main shaft (11)
Being provided with shaft coupling (12) near one end of the second bearing block (13), described main shaft (11) sets near one end of clutch shaft bearing seat (2)
Having expanded shaft (3), expanded shaft (3) is provided with measure speed gears and emergency governor, overspeed governor (4), one end of expanded shaft (3) is provided with speed governing
Device end shaft coupling (1), the main shaft (11) in described clutch shaft bearing seat (2) is provided with deep groove ball bearing (5), described main shaft (11)
Middle part is provided with Curtis wheel blade (9), and described Curtis wheel blade (9) includes impeller and blade, described impeller and main shaft
(11) connecting by key and threaded engagement are fixing, impeller outer edge is provided with blade, and blade is embedded on impeller by T-shaped blade root, multiple
Speed level impeller blade (9) with main shaft (11) be collectively forming main shaft (11) general assembly, be provided with in described cylinder (10) nozzle sets (16) and
Turn to guide vane ring (15), nozzle sets (16) and turn to guide vane ring (15) to be connected with cylinder (10) by bolt.
The back pressure turbine of a kind of slow-speed of revolution low voltage difference the most according to claim 1, it is characterised in that described main shaft
(11) part being connected with clutch shaft bearing seat (2) and the second bearing block (13) is respectively provided with two discs (7).
The back pressure turbine of a kind of slow-speed of revolution low voltage difference the most according to claim 1, it is characterised in that described cylinder
(10) including vaporium in, the both sides of described cylinder (10) are equipped with a main inlet throttle-stop valve.
The back pressure turbine of a kind of slow-speed of revolution low voltage difference the most according to claim 3, it is characterised in that described main inlet throttle-stop valve
One end be provided with speed regulator.
The back pressure turbine of a kind of slow-speed of revolution low voltage difference the most according to claim 2, it is characterised in that described disc
(7) bearing (6) it is equipped with on.
The back pressure turbine of a kind of slow-speed of revolution low voltage difference the most according to claim 1, it is characterised in that described cylinder
(10) junction with main shaft (11) is provided with packing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620671766.7U CN205805619U (en) | 2016-06-30 | 2016-06-30 | A kind of back pressure turbine of slow-speed of revolution low voltage difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620671766.7U CN205805619U (en) | 2016-06-30 | 2016-06-30 | A kind of back pressure turbine of slow-speed of revolution low voltage difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805619U true CN205805619U (en) | 2016-12-14 |
Family
ID=57513909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620671766.7U Expired - Fee Related CN205805619U (en) | 2016-06-30 | 2016-06-30 | A kind of back pressure turbine of slow-speed of revolution low voltage difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805619U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306874A (en) * | 2018-07-10 | 2019-02-05 | 唐山三友集团兴达化纤有限公司 | A kind of small differential pressure small-power steamer asynchronous generating device of vertical low-pressure steam |
| CN109653802A (en) * | 2019-02-20 | 2019-04-19 | 大唐绥化热电有限公司 | Based on pneumatic design back pressure type high-efficiency steam conversion equipment and conversion method |
| CN114575934A (en) * | 2022-03-09 | 2022-06-03 | 中国船舶重工集团公司第七0三研究所 | Novel three-row reverse compound speed level for ship |
-
2016
- 2016-06-30 CN CN201620671766.7U patent/CN205805619U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306874A (en) * | 2018-07-10 | 2019-02-05 | 唐山三友集团兴达化纤有限公司 | A kind of small differential pressure small-power steamer asynchronous generating device of vertical low-pressure steam |
| CN109653802A (en) * | 2019-02-20 | 2019-04-19 | 大唐绥化热电有限公司 | Based on pneumatic design back pressure type high-efficiency steam conversion equipment and conversion method |
| CN114575934A (en) * | 2022-03-09 | 2022-06-03 | 中国船舶重工集团公司第七0三研究所 | Novel three-row reverse compound speed level for ship |
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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 |
Granted publication date: 20161214 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |