CN207454031U - A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor - Google Patents
A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor Download PDFInfo
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- CN207454031U CN207454031U CN201721629147.2U CN201721629147U CN207454031U CN 207454031 U CN207454031 U CN 207454031U CN 201721629147 U CN201721629147 U CN 201721629147U CN 207454031 U CN207454031 U CN 207454031U
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Abstract
A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor, are related to steam turbine field, in order to solve the problems, such as that existing steam turbine can not meet Winter heat supply demand.Low-pressure side cooling steam pipe connection portion and medium voltage side heating extraction line is respectively adopted for the cross over pipe of the utility model mesolow steam admission side and middle pressure exhaust region and cooling steam pipe connection portion is realized；Using the connection of end Hydraulic Radial-fit Bolts Onto Couplings is adjusted, the other end of low pressure optical axis heat supply rotor and one end of generator amature use electric end Hydraulic Radial-fit Bolts Onto Couplings to connect for one end of low pressure optical axis heat supply rotor and one end of High inter case.The utility model increases heat capacity, meets the demand of Winter heat supply.
Description
Technical field
The utility model is related to steam turbine fields.
Background technology
At present since the increase of Winter heat supply area is, it is necessary to increase heat capacity, and need the steam extraction amount of bigger, simple
Heat demand can not be met by relying on punching steam extraction or high back pressure transformation on steam turbine extraction line,
Utility model content
The utility model is in order to solve the problems, such as that existing steam turbine can not meet Winter heat supply demand, so as to provide one kind
300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor.
A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor described in the utility model, including low pressure
Side cooling steam pipe connection portion 1A, medium voltage side heating extraction line and cooling steam pipe connection portion 1B, low pressure optical axis heat supply
Rotor 2 adjusts end Hydraulic Radial-fit Bolts Onto Couplings 3 and electric end Hydraulic Radial-fit Bolts Onto Couplings 4；
Low-pressure side cooling steam pipe connection portion 1A is respectively adopted in the cross over pipe of low pressure admission side and middle pressure exhaust region
Side heating extraction line and cooling steam pipe connection portion 1B is pressed to realize；
One end of low pressure optical axis heat supply rotor 2 and one end of High inter case 5 are connected using tune end Hydraulic Radial-fit Bolts Onto Couplings 3
It connects, the other end of low pressure optical axis heat supply rotor 2 is connected with one end of generator amature 6 using electric end Hydraulic Radial-fit Bolts Onto Couplings 4.
Preferably, low-pressure side cooling steam pipe connection portion 1A includes low pressure admission side flange and connector 1A-1, low
Press side cooling steam short tube 1A-2 and low-pressure side cooling steam pipe flange and connector 1A-3；
One end of low-pressure side cooling steam short tube 1A-2 is connected by low pressure admission side flange and connector 1A-1 with low pressure (LP) cylinder 7
It connects, the other end of low-pressure side cooling steam short tube 1A-2 is cold by low-pressure side cooling steam pipe flange and connector 1A-3 connections
But the LP steam admission interface 9-1 of jet chimney 9.
Preferably, medium voltage side heating extraction line and cooling steam pipe connection portion 1B include middle pressure exhaust region connection method
Blue 1B-1, connection short tube 1B-2, first flange and connector 1B-3, middle pressure vapour side stopboard 1B-4, heating steam extraction short tube 1B-5,
Cooling steam fairlead 1B-6, second flange and connector 1B-7 and the 3rd flange and connector 1B-8；
One end of short tube 1B-2 is connected by middle pressure exhaust region connecting flange 1B-1 connections High-and-medium Pressure Outer Casing 8, connects short tube
The other end of 1B-2 passes through pressure vapour side stopboard 1B-4 in first flange and connector 1B-3 connections；
Heating steam extraction short tube 1B-5 and cooling steam fairlead 1B-6, heating steam extraction short tube are through on connection short tube 1B-2
1B-5 by second flange and connector 1B-7 connection heating extraction lines, cooling steam fairlead 1B-6 by the 3rd flange and
The middle pressure exhaust region cooling pipe interface 9-2 of connector 1B-8 connection cooling steams pipeline 9.
Preferably, medium voltage side heating extraction line and cooling steam pipe connection portion 1B further include temperature measuring equipment 1B-9 and
Pressure measuring unit 1B-10；
Temperature measuring equipment 1B-9 and pressure measuring unit 1B-10 is arranged on heating steam extraction short tube 1B-5.
Preferably, cooling steam pipeline 9 includes electric gate valve 9-3, pressure-regulating valve 9-4, desuperheat valve group 9-5, multigroup
Hydrophobic pipeline and valve 9-6 and temperature and device for pressure measurement 9-7；
On cooling steam pipeline 9 by it is middle pressure exhaust region cooling pipe interface 9-2 ends to LP steam admission interface 9-1 ends according to
It is secondary to be equipped with electric gate valve 9-3, pressure-regulating valve 9-4, desuperheat valve group 9-5 and device for pressure measurement 9-7, it is also distributed with multigroup hydrophobic
Pipeline and valve 9-6.
The beneficial effects of the utility model：The steam-turbine unit of the utility model is designed using birotor, and summer is using normal
Advise pure condensate low pressure rotor；Winter using low pressure optical axis heat supply rotor connection High inter case and generator amature, plays transmission and turns round
The effect of square.The steam-turbine unit of the utility model disclosure satisfy that pure condensate, the exchange of back pressure unit, and heat supply is being increased for the hot season
Ability.
Description of the drawings
Fig. 1 is a kind of longitudinal sectional view of the 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor；
Fig. 2 is the structure diagram of low-pressure side cooling steam pipe connection portion；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the structure diagram of medium voltage side heating extraction line and cooling steam pipe connection portion；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the sectional view along A-A of Fig. 5；
Fig. 7 is the structure diagram of cooling steam system.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1, one kind described in present embodiment is based on low pressure
The 300MW subcritical pressure turbines of optical axis heat supply rotor, the high pressure of former unit is through-flow, before, during and after bearing housing and bearing, valve
Position, each pipe interface position etc. are constant, only carry out optical axis transformation to low pressure flow passage.
Including low-pressure side cooling steam pipe connection portion 1A, medium voltage side heating extraction line and cooling steam pipe connection portion
1B, low pressure optical axis heat supply rotor 2 adjust end Hydraulic Radial-fit Bolts Onto Couplings 3 and electric end Hydraulic Radial-fit Bolts Onto Couplings 4；
Low-pressure side cooling steam pipe connection portion 1A is respectively adopted in the cross over pipe of low pressure admission side and middle pressure exhaust region
Side heating extraction line and cooling steam pipe connection portion 1B is pressed to realize；
One end of low pressure optical axis heat supply rotor 2 and one end of High inter case 5 are connected using tune end Hydraulic Radial-fit Bolts Onto Couplings 3
It connects, the other end of low pressure optical axis heat supply rotor 2 is connected with one end of generator amature 6 using electric end Hydraulic Radial-fit Bolts Onto Couplings 4.
The low pressure rotor of existing steam turbine replaces with low pressure optical axis heat supply rotor 2, steam turbine is transformed using optical axis, by middle pressure
Steam discharge (excision of low plus regenerative steam) fully enters heat exchangers for district heating heat supply, and low pressure rotor is removed, and is replaced with an optical axis, is connected
High inter case and generator play the role of transferring torque.In the process of running, optical axis can be with the steam in low pressure (LP) cylinder for unit
(or empty vapour) generates friction air blast fever and optical axis rotor is cooled down, it is necessary to introduce one cooling steam, through the above way
To meet Winter heat supply needs.
Specific embodiment two：Present embodiment is illustrated with reference to Fig. 2 to Fig. 6, present embodiment is to specific implementation
A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor described in mode one are described further, this embodiment party
In formula, low-pressure side cooling steam pipe connection portion 1A includes low pressure admission side flange and connector 1A-1, low-pressure side cooling steam
Short tube 1A-2 and low-pressure side cooling steam pipe flange and connector 1A-3；
One end of low-pressure side cooling steam short tube 1A-2 is connected by low pressure admission side flange and connector 1A-1 with low pressure (LP) cylinder 7
It connects, the other end of low-pressure side cooling steam short tube 1A-2 is cold by low-pressure side cooling steam pipe flange and connector 1A-3 connections
But the LP steam admission interface 9-1 of jet chimney 9.
In present embodiment, medium voltage side heating extraction line and cooling steam pipe connection portion 1B include middle pressure exhaust region and connect
Acting flange 1B-1, connection short tube 1B-2, first flange and connector 1B-3, middle pressure vapour side stopboard 1B-4, heating steam extraction short tube
1B-5, cooling steam fairlead 1B-6, second flange and connector 1B-7 and the 3rd flange and connector 1B-8；
One end of short tube 1B-2 is connected by middle pressure exhaust region connecting flange 1B-1 connections High-and-medium Pressure Outer Casing 8, connects short tube
The other end of 1B-2 passes through pressure vapour side stopboard 1B-4 in first flange and connector 1B-3 connections；
Heating steam extraction short tube 1B-5 and cooling steam fairlead 1B-6, heating steam extraction short tube are through on connection short tube 1B-2
1B-5 by second flange and connector 1B-7 connection heating extraction lines, cooling steam fairlead 1B-6 by the 3rd flange and
The middle pressure exhaust region cooling pipe interface 9-2 of connector 1B-8 connection cooling steams pipeline 9.
Second flange and connector 1B-7 include flange, anti-flange and related fittings nut, bolt, gasket etc., heating
Steam extraction short tube 1B-5 directly inserts weldering, designing institute's heating extraction line and the second method with the flange in second flange and connector 1B-7
Anti- flange in blue and connector 1B-7 directly inserts weldering, after both sides weld, is close to two side flanges handle with connector and connects；
In present embodiment, heating extraction line and cooling steam pipe connection portion 1 further include temperature measuring equipment 1B-9 and survey
Pressure device 1B-10；
Temperature measuring equipment 1B-9 and pressure measuring unit 1B-10 is arranged on heating steam extraction short tube 1B-5, is steamed for monitoring heating
Vapour parameter.
3rd flange and connector 1B-8 include flange, anti-flange and related fittings (nut, bolt, gasket etc.), cold
But the flange in steam fairlead 1B-6 and the 3rd flange and connector 1B-8 directly inserts weldering, designing institute's cooling steam pipeline and the
Anti- flange in three flanges and connector 1B-8 directly inserts weldering, after both sides weld, is connect two side flanges being close to connector.It is former
After unit communicating pipe is cancelled, low pressure admission side is then connected with low pressure admission side flange and connector 1A-1 with low pressure (LP) cylinder, and is left
Low-pressure side cooling steam short tube 1A-2, low-pressure side cooling steam pipe flange and connector 1A-3 include flange, anti-flange and phase
Fitting (nut, bolt, gasket etc.) is correlated, low-pressure side cooling steam short tube 1A-2 carries out inserting weldering, the cooling of designing institute with flange
The anti-flange of jet chimney and low-pressure side cooling steam pipe flange and connector 1A-3 carries out inserting weldering, after both sides weld, with even
Two side flanges handle is close to and connects by fitting.
Specific embodiment three：Present embodiment is illustrated with reference to Fig. 7, present embodiment is to specific embodiment two
A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor are described further, cold in present embodiment
But jet chimney 9 include electric gate valve 9-3, pressure-regulating valve 9-4, desuperheat valve group 9-5, multigroup hydrophobic pipeline and valve 9-6 and
Temperature and device for pressure measurement 9-7；
On cooling steam pipeline 9 by it is middle pressure exhaust region cooling pipe interface 9-2 ends to LP steam admission interface 9-1 ends according to
It is secondary to be equipped with electric gate valve 9-3, pressure-regulating valve 9-4, desuperheat valve group 9-5 and device for pressure measurement 9-7, it is also distributed with multigroup hydrophobic
Pipeline and valve 9-6.
During unit starting, electric gate valve 9-3 is in opening, and the steam flow into low pressure (LP) cylinder passes through pressure-regulating valve
9-4 is controlled to adjust.Into low pressure cooling steam temperature by desuperheat valve group 9-5 desuperheats to design temperature, on cooling steam pipeline 9
Temperature and device for pressure measurement 9-7 are disposed with, for monitoring cooling steam parameter.During shutdown, electric gate valve 9-3 and pressure are adjusted
Valve 9-4 is all in closed state.Low pressure cooling vapour system is equipped with multigroup hydrophobic pipeline and valve 9-6, due to cooling steam temperature
It is relatively low to spend parameter, multigroup hydrophobic pipeline and valve 9-6 are constantly in opening in low pressure cooling vapour system input.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that will fall containing in the equivalent requirements of the claims
All changes in justice and scope are embraced therein.
Claims (5)
1. a kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor, which is characterized in that cool down and steam including low-pressure side
Vapour pipe connection portion (1A), medium voltage side heating extraction line and cooling steam pipe connection portion (1B), low pressure optical axis heat supply rotor
(2), end Hydraulic Radial-fit Bolts Onto Couplings (3) and electric end Hydraulic Radial-fit Bolts Onto Couplings (4) are adjusted；
Low-pressure side cooling steam pipe connection portion (1A) and middle pressure is respectively adopted in the cross over pipe of low pressure admission side and middle pressure exhaust region
Side heating extraction line and cooling steam pipe connection portion (1B) are realized；
One end of low pressure optical axis heat supply rotor (2) is connected with one end of High inter case (5) using tune end Hydraulic Radial-fit Bolts Onto Couplings (3)
It connects, the other end of low pressure optical axis heat supply rotor (2) is with one end of generator amature (6) using electric end Hydraulic Radial-fit Bolts Onto Couplings (4)
Connection.
2. a kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor according to claim 1, feature exist
In low-pressure side cooling steam pipe connection portion (1A) includes low pressure admission side flange and connector (1A-1), low-pressure side cooling steam
Vapour short tube (1A-2) and low-pressure side cooling steam pipe flange and connector (1A-3)；
One end of low-pressure side cooling steam short tube (1A-2) passes through low pressure admission side flange and connector (1A-1) and low pressure (LP) cylinder (7)
Connection, the other end of low-pressure side cooling steam short tube (1A-2) pass through low-pressure side cooling steam pipe flange and connector (1A-3)
Connect the LP steam admission interface (9-1) of cooling steam pipeline (9).
3. a kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor according to claim 1, feature exist
In medium voltage side heating extraction line and cooling steam pipe connection portion (1B) include middle pressure exhaust region connecting flange (1B-1), connect
Connect short tube (1B-2), first flange and connector (1B-3), middle pressure vapour side stopboard (1B-4), heating steam extraction short tube (1B-5),
Cooling steam fairlead (1B-6), second flange and connector (1B-7) and the 3rd flange and connector (1B-8)；
The one end for connecting short tube (1B-2) connects High-and-medium Pressure Outer Casing (8) by middle pressure exhaust region connecting flange (1B-1), and connection is short
The other end for managing (1B-2) passes through pressure vapour side stopboard (1B-4) in first flange and connector (1B-3) connection；
Heating steam extraction short tube (1B-5) and cooling steam fairlead (1B-6) are through on connection short tube (1B-2), heating steam extraction is short
It manages (1B-5) and heating extraction line is connected by second flange and connector (1B-7), cooling steam fairlead (1B-6) passes through the
The middle pressure exhaust region cooling pipe interface (9-2) of three flanges and connector (1B-8) connection cooling steam pipeline (9).
4. a kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor according to claim 3, feature exist
In medium voltage side heating extraction line and cooling steam pipe connection portion (1B) further include temperature measuring equipment (1B-9) and pressure measuring unit
(1B-10)；
Temperature measuring equipment (1B-9) and pressure measuring unit (1B-10) are arranged on heating steam extraction short tube (1B-5).
5. a kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor according to Claims 2 or 3, special
Sign is, cooling steam pipeline (9) includes electric gate valve (9-3), pressure-regulating valve (9-4), desuperheat valve group (9-5), multigroup dredges
Water lines and valve (9-6) and temperature and device for pressure measurement (9-7)；
It is held to LP steam admission interface (9-1) and held by middle pressure exhaust region cooling pipe interface (9-2) on cooling steam pipeline (9)
Electric gate valve (9-3), pressure-regulating valve (9-4), desuperheat valve group (9-5) and device for pressure measurement (9-7) are equipped with successively, are also distributed
There are multigroup hydrophobic pipeline and valve (9-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629147.2U CN207454031U (en) | 2017-11-29 | 2017-11-29 | A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629147.2U CN207454031U (en) | 2017-11-29 | 2017-11-29 | A kind of 300MW subcritical pressure turbines based on low pressure optical axis heat supply rotor |
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| Publication Number | Publication Date |
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| CN207454031U true CN207454031U (en) | 2018-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952844A (en) * | 2018-07-13 | 2018-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of 200MW super-pressure back pressure turbine |
| CN109404074A (en) * | 2018-11-05 | 2019-03-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of overcritical optical axis heat supply transformation steam turbine of 350MW |
| CN109882256A (en) * | 2019-04-09 | 2019-06-14 | 哈尔滨汽轮机厂有限责任公司 | A kind of 135MW super-pressure back pressure heat supply transformation steam turbine |
-
2017
- 2017-11-29 CN CN201721629147.2U patent/CN207454031U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952844A (en) * | 2018-07-13 | 2018-12-07 | 哈尔滨汽轮机厂有限责任公司 | A kind of 200MW super-pressure back pressure turbine |
| CN109404074A (en) * | 2018-11-05 | 2019-03-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of overcritical optical axis heat supply transformation steam turbine of 350MW |
| CN109404074B (en) * | 2018-11-05 | 2023-10-10 | 哈尔滨汽轮机厂有限责任公司 | 350MW supercritical optical axis heat supply transformation steam turbine |
| CN109882256A (en) * | 2019-04-09 | 2019-06-14 | 哈尔滨汽轮机厂有限责任公司 | A kind of 135MW super-pressure back pressure heat supply transformation steam turbine |
| CN109882256B (en) * | 2019-04-09 | 2023-12-01 | 哈尔滨汽轮机厂有限责任公司 | 135MW ultrahigh-pressure backpressure heat supply transformation steam turbine |
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