CN205558989U - Small steam turbine steam extraction access system - Google Patents
Small steam turbine steam extraction access system Download PDFInfo
- Publication number
- CN205558989U CN205558989U CN201620052380.8U CN201620052380U CN205558989U CN 205558989 U CN205558989 U CN 205558989U CN 201620052380 U CN201620052380 U CN 201620052380U CN 205558989 U CN205558989 U CN 205558989U
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- steam turbine
- condenser
- steam
- small
- turbine exhaust
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Abstract
The utility model provides a small steam turbine steam extraction access system, including main steam turbine, the main steam turbine condenser, small steam turbine, insert the small steam turbine steam extraction at the main steam turbine condenser throat opening, small steam turbine steam extraction steam flow emits into the condenser in order to have certain contained angle with perpendicular normal line, inside tube bank top sets up protection part spare, two symmetrical arrangement about protection part spare has inside the condenser, be located the inside left and right sides tube bank top of condenser respectively, protection part spare adopts the orifice plate of certain thickness or the solid bar of certain diameter to constitute, but rational utilization power plant has the system now, realize the energy saving and consumption reduction of power plant, the system is simple, easy construction, easy realization.
Description
Technical field
The utility model relates to clammy condenser of thermal generator set scrap build field, a kind of clammy thermoelectric generator
Group electrically driven feed pump changes small steam turbine exhaust steam access system in steam feed pump or newly-increased little steam turbine generator engineering.
Background technology
Some power plant are for saving station service at present, and electrically driven feed pump changes into steam feed pump, therefore answering due to small turbine
With having drawn where a new problem small turbine exhaust steam is discharged to.Separately join merely special coagulating of small turbine
Vapour device not only cost is high, and owing to system is the most complicated, the face related to is too many, simultaneously by space, place, quantity of circulating water, etc.
The restriction ratio of factor is relatively big, implements relatively difficult.
Utility model content
The purpose of this utility model is to provide a kind of Appropriate application power plant existing system, and small steam turbine exhaust steam accesses main steamer
The condenser of machine, it is achieved the small steam turbine exhaust steam access system of power plant for energy conservation consumption reduction.
To achieve these goals, the technical solution of the utility model is: a kind of small steam turbine exhaust steam access system, including main
Steam turbine, main steam turbine condenser, small turbine, main steam turbine steam discharge connects main steam turbine condenser, small steam turbine exhaust steam
It is also connected to main steam turbine condenser；It is characterized in that, access small steam turbine exhaust steam at main steam turbine condenser throat opening,
The access pipeline of small steam turbine exhaust steam steam flow enters condenser having certain angle with vertical normal.
Further, the internal tube bank of condenser is arranged over protecting component, and protecting component has two, left and right right inside condenser
Claim to arrange, lay respectively at above condenser internal left and right sides tube bank.
Further, protecting component is plate-shaped, and its one end is arranged on condenser shell inside sidewalls, and the other end exceedes condenser
The width of internal unilateral tube bank, and form the flow-guiding structure having a down dip.
Further, protecting component uses the solid bar of certain thickness orifice plate or certain diameter to constitute, when using solid bar
During material, round steel can be used to carry out parallel interval and to be arranged to make up.
Further, the access pipeline of small steam turbine exhaust steam steam flow is to have 45 ° of angles access condensers with vertical normal.
Further, when the access pipeline of small steam turbine exhaust steam steam flow accesses condenser in a horizontal manner, open at condenser throat
Installing venetian blind type steam baffle at Kou, steam baffle and vertical normal have 45 ° of angles.
The utility model, by small steam turbine exhaust steam accesses the technical scheme of main steam turbine condenser, can Appropriate application power plant show
There is system, it is achieved power plant for energy conservation lowers consumption, and system is simple, it is easy to construction, it is simple to realize.
Accompanying drawing explanation
Fig. 1 small steam turbine exhaust steam access system one schematic diagram；
Fig. 2 small steam turbine exhaust steam access system two schematic diagram；
Fig. 3 protecting component constructs a schematic diagram
Fig. 4 protecting component constructs two schematic diagrames
1 condenser throat, 2 protecting components, 3 heat exchanger tubes, 4 access pipeline
Detailed description of the invention
Below in conjunction with the accompanying drawings the utility model is further described, it will be appreciated that content described herein is merely to illustrate
With explanation the utility model, it is not used to limit the utility model.
In power plant system rebuilding construction, former power plant system increases small turbine, small steam turbine exhaust steam is accessed main steam turbine
Condenser.Needs carry out following method step:
1, the impact on main steam turbine condenser cooling capacity of the small steam turbine exhaust steam amount is adjusted.Various operating modes are all adjusted,
Such as TMCR operating mode, TRL operating mode, WVO operating mode, THA operating mode etc..
2, the selection of on-position.Can only access at condenser throat.Pipeline impact accessed or miscellaneous part alter course or move
Position.
3, access port selects.When small steam turbine exhaust steam enters big turbine condenser, flow velocity to meet standard-required as far as possible,
This cross section that will be abutted against entrance ensure that.Access port sectional area is sufficiently large.Access port both can be circular, it is also possible to
It is square, it is also possible to be trapezoidal, to facilitate on-the-spot access as principle.In order to realize accessing smoothly, needs side becomes round or circle becomes
Square (or trapezoidal).For square (or trapezoidal) pipe fitting, inner support to be carried out.
4, steam flow enters the direction of main steam turbine condenser.Entering condenser with downward 45 ° (with vertical normal angle) is
Preferably, to prevent the interference to main steam turbine steam discharge steam flow of the small steam turbine exhaust steam steam flow.Can be by installing shutter in porch
Steam flow is organized into 45° angle by formula steam baffle.Shutter needs to arrange reinforcement.
5, main steam turbine bank of condenser pipes is protected.Bank of condenser pipes top adds certain thickness orifice plate or solid bar,
To prevent steam flow from tube bank being washed away.
6, main steam turbine condenser inner support truss needs to adjust.After condenser throat opening, inner support truss just cannot
Take root, can be used as taking root a little by welded hollow pipeline section, keep the original rigidity of condenser and intensity.
As it is shown in figure 1, access small steam turbine exhaust steam at condenser throat opening, by accessing pipeline by small steam turbine exhaust steam vapour
Stream enters condenser with downward 45 ° (with vertical normal angle), sets up protecting component above the tube bank of condenser internal heat,
Protecting component uses certain thickness orifice plate or solid bar to constitute, and protecting component has two the symmetrical cloth in left and right inside condenser
Putting, lay respectively at condenser internal left and right sides tube bank only side, protecting component is plate-shaped, and its one end is arranged in condensing wall
Side, the other end exceedes the width of the internal unilateral tube bank of condenser, and forms the flow-guiding structure having a down dip, can be more conducive to from condenser
The main steam turbine steam discharge flowing that throat enters.
As in figure 2 it is shown, for not having accessing the pipeline space environments with downward 45 ° of settings, other can be used suitable
Arrangement, as being horizontally disposed with access pipeline, now installs downward 45 ° of venetian blind types arranged at condenser interior inlet
Deflector, is organized into 45° angle by the steam flow that small turbine accesses and flows into.
As shown in Figure 3, Figure 4, protecting component uses the solid bar of certain thickness orifice plate or certain diameter to constitute.When adopting
During with solid bar, round steel can be used to carry out parallel interval and to be arranged to make up.
Finally it is noted that the foregoing is only explanation of the present utility model, it is not limited to the utility model, although
Being described in detail the utility model, for a person skilled in the art, it still can be to aforementioned described
Technical scheme modify, or wherein portion of techniques feature is carried out equivalent.All in spirit of the present utility model and
Within principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. a small steam turbine exhaust steam access system, including main steam turbine, main steam turbine condenser, small turbine, main steamer
Machine steam discharge connects main steam turbine condenser, and small steam turbine exhaust steam is also connected to main steam turbine condenser；It is characterized in that, leading
Throat of steam turbine condenser opening accesses small steam turbine exhaust steam, and the access pipeline of small steam turbine exhaust steam steam flow is to have with vertical normal
Certain angle is had to enter condenser.
Small steam turbine exhaust steam access system the most according to claim 1, it is characterised in that above the internal tube bank of condenser
Being provided with protecting component, protecting component has two, left and right to be arranged symmetrically with inside condenser, lays respectively at about condenser inside two
Side pipe Shu Shangfang.
Small steam turbine exhaust steam access system the most according to claim 2, it is characterised in that protecting component is plate-shaped, its
One end is arranged on condenser shell inside sidewalls, the other end exceedes the width of the internal unilateral tube bank of condenser, and is formed and have a down dip
Flow-guiding structure.
Small steam turbine exhaust steam access system the most according to claim 2, it is characterised in that protecting component uses certain thick
The orifice plate of degree or the solid bar of certain diameter are constituted, and when using solid bar, round steel can be used to carry out parallel interval arrangement
Constitute.
Small steam turbine exhaust steam access system the most according to claim 1, it is characterised in that small steam turbine exhaust steam steam flow
Access pipeline there are 45 ° of angles access condensers with vertical normal.
Small steam turbine exhaust steam access system the most according to claim 1, it is characterised in that small steam turbine exhaust steam steam flow
Access pipeline when accessing condenser in a horizontal manner, at condenser throat opening part venetian blind type steam baffle be installed, steam baffle and
Vertical normal has 45 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052380.8U CN205558989U (en) | 2016-01-14 | 2016-01-14 | Small steam turbine steam extraction access system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620052380.8U CN205558989U (en) | 2016-01-14 | 2016-01-14 | Small steam turbine steam extraction access system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205558989U true CN205558989U (en) | 2016-09-07 |
Family
ID=56821111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620052380.8U Active CN205558989U (en) | 2016-01-14 | 2016-01-14 | Small steam turbine steam extraction access system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205558989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545385A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Exhaust steam access system and exhaust steam access method for small steam turbine |
-
2016
- 2016-01-14 CN CN201620052380.8U patent/CN205558989U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545385A (en) * | 2016-01-14 | 2016-05-04 | 大唐(北京)能源管理有限公司 | Exhaust steam access system and exhaust steam access method for small steam turbine |
| CN105545385B (en) * | 2016-01-14 | 2024-03-22 | 大唐环境产业集团股份有限公司 | Exhaust steam access system and method of small steam turbine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |