CN206903698U - Back pressure turbine system with attemperator - Google Patents
Back pressure turbine system with attemperator Download PDFInfo
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- CN206903698U CN206903698U CN201720810477.5U CN201720810477U CN206903698U CN 206903698 U CN206903698 U CN 206903698U CN 201720810477 U CN201720810477 U CN 201720810477U CN 206903698 U CN206903698 U CN 206903698U
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- back pressure
- pressure turbine
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Abstract
The utility model discloses a kind of back pressure turbine system with attemperator, belong to industrial back pressure turbine heat supply process field.Back pressure turbine system includes：For providing the vapour source equipment drawn gas, provided with extraction opening；The attemperator to be cooled for drawing gas of providing the vapour source equipment, provided with air intake and venthole, the air intake connects with the extraction opening through input channel；With with the back pressure turbine for entering vapour section, acting section and steam discharge section, it is described enter vapour section connect with the venthole, the acting section is connected with slewing to drive slewing rotation, and the steam that the steam discharge section is discharged is as factory steam.The utility model Pass through above-mentioned technical proposal not only takes full advantage of the pressure difference energy loss of steam, and also reduces station service power consumption rate, reaches energy-saving purpose.
Description
Technical field
The utility model belongs to industrial back pressure turbine heat supply process field, more particularly to a kind of back pressure type with attemperator
Turbine system.
Background technology
In the industries such as power plant, oil, chemical industry, steel, steam is increasingly widely used as a kind of energy.For
The vapour source of quality (i.e. temperature and pressure) needed for acquisition factory steam, it is common to do in face of domestic 600MW supercritical units
Method is to carry out pressure and temperature reducing processing to drawing gas for reheating hot arc, and the vapour source obtained after processing then is conveyed into downstream industry uses
Family, and the extraction pressure of reheating hot arc is 2.6~3.9MPa, temperature are 566 DEG C, downstream industry user steam pressure is 0.8~
1.3MPa, temperature are 250 DEG C or so, huge pressure difference energy loss in this steam quality transfer process be present, are a kind of energy
Source utilizes and unnecessarily wasted.
The content of the invention
In order to solve the above problems, the utility model provides a kind of back pressure turbine system with attemperator, and it is wrapped
Include：For providing the vapour source equipment drawn gas, provided with extraction opening；Subtract for what drawing gas of providing the vapour source equipment was cooled
Warm device, provided with air intake and venthole, the air intake connects with the extraction opening through input channel；With with entering vapour section, do
The back pressure turbine of work(section and steam discharge section, it is described enter vapour section connected with the venthole, acting section and the slewing connect
Connect to drive the slewing to rotate, the steam of the steam discharge section discharge is as factory steam.
In back pressure turbine system as described above, it is preferable that the slewing is asynchronous generator.
In back pressure turbine system as described above, it is preferable that be provided with the input channel and steamed for adjusting
The valve of vapour amount.
In back pressure turbine system as described above, it is preferable that the steam pressure of steam discharge section discharge for 0.8~
1.3MPa。
In back pressure turbine system as described above, it is preferable that the vapour source equipment is the reheating hot arc of steam turbine.
What the utility model embodiment Pass through above-mentioned technical proposal was brought has the beneficial effect that：
By setting attemperator before back pressure turbine, attemperator is set to carry out cooling processing to extraction temperature, so as to drop
The low manufacturing cost of back pressure turbine.There is provided the slewing being connected with back pressure turbine so that the system is not only
The pressure difference energy loss of steam is taken full advantage of, and also reduces station service power consumption rate, reaches energy-saving purpose.
Brief description of the drawings
Fig. 1 is a kind of structural representation for back pressure turbine system with attemperator that the utility model embodiment provides
Figure；
In figure, symbol description is as follows：
1 attemperator, 2 back pressure turbines, 3 input channels, 4 asynchronous generators, 5 industrial users.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
Referring to Fig. 1, the utility model provides a kind of back pressure turbine system with attemperator, and it includes：Vapour source is set
Standby (not shown), attemperator 1 and back pressure turbine 2.
Specifically, vapour source equipment is drawn gas for offer, and it, which is provided with, is used to export the extraction opening to draw gas.Preferably, vapour source
Equipment is the reheating hot arc of steam turbine, and now extraction pressure is 2.6~3.9MPa, and temperature is 566 DEG C.In practice, vapour source is set
Standby can be power plant power generation turbine, such as high-pressure turbine, middle-pressure steam turbine, can also be boiler, the present embodiment is not
This is defined.
Attemperator 1 is connected with vapour source equipment, for carrying out desuperheat processing to coming from drawing gas for steamer equipment, at desuperheat
Steam after reason is exported to back pressure turbine 2, and it is provided with air intake and venthole, and air intake passes through input channel 3 and vapour source
The extraction opening connection of equipment.In practice, handled by the cooling of attemperator 1, extraction temperature can be down to 420 DEG C by 566 DEG C.
Back pressure turbine 2 is connected with attemperator 1, is also connected with slewing, for after the processing of the desuperheat of attemperator 1
Draw gas carry out pressure and temperature reducing processing, and using the pressure difference energy obtained in pressure and temperature reducing processing procedure externally do work so that rotation
Equipment rotates, and it is provided with into vapour section, acting section and steam discharge section, the venthole for entering vapour section with attemperator 1 and connects, draw gas by back pressure
Formula steam turbine 2 is exported after doing work by steam discharge section, can be exported to industrial user, i.e. steam discharge and is used for as factory steam, acting section
It is connected with slewing to be driven.After back pressure turbine 2 is using pressure difference energy externally acting, its vapor (steam) temperature discharged
It is low with the temperature and pressure to draw gas that pressure ratio enters vapour section, so as to meet industrial user's demand.
By setting attemperator 1 before back pressure turbine 2, the steam inlet condition of back pressure turbine 2 is reduced, that is, is reduced
Extraction temperature, so as to reduce the manufacturing cost of back pressure turbine 2, and the steam discharge of back pressure turbine 2 meets industry
User's is required with vapour.
Slewing is preferably asynchronous generator (or abbreviation G) 4, so back pressure turbine system can be caused to meet
While industrial user is with vapour demand, generated electricity, its generated energy is directly incorporated into station service electrical system, so as to reduce station service
Rate, reach energy-saving purpose.In other examples, slewing can be water pump.
For the ease of controlling the quantity of steam that attemperator 1 is delivered to by vapour source equipment extraction opening, it is provided with input channel 3
Valve.
In summary, what the utility model embodiment was brought has the beneficial effect that：
By setting attemperator before back pressure turbine, attemperator is set to carry out cooling processing to extraction temperature, so as to drop
The low manufacturing cost of back pressure turbine.There is provided the slewing being connected with back pressure turbine so that the system is not only
The pressure difference energy loss of steam is taken full advantage of, and also reduces station service power consumption rate, reaches energy-saving purpose.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only
's.It is all in the scope of the utility model or in the change being equal in the scope of the utility model by the utility model bag
Contain.
Claims (5)
1. a kind of back pressure turbine system with attemperator, it is characterised in that the back pressure turbine system includes：
For providing the vapour source equipment drawn gas, provided with extraction opening；
The attemperator to be cooled for drawing gas of providing the vapour source equipment, provided with air intake and venthole, it is described enter vapour
Mouth connects with the extraction opening through input channel；With
Have into vapour section, acting section and steam discharge section back pressure turbine, it is described enter vapour section connected with the venthole, it is described to do
Work(section is connected with slewing to drive the slewing to rotate, and the steam of the steam discharge section discharge is as factory steam.
2. back pressure turbine system according to claim 1, it is characterised in that the slewing is asynchronous generating
Machine.
3. back pressure turbine system according to claim 1, it is characterised in that be provided with and be used on the input channel
Adjust the valve of quantity of steam.
4. back pressure turbine system according to claim 1, it is characterised in that the steam pressure of the steam discharge section discharge
For 0.8~1.3MPa.
5. back pressure turbine system according to claim 1, it is characterised in that the vapour source equipment be steam turbine again
Hot arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810477.5U CN206903698U (en) | 2017-07-05 | 2017-07-05 | Back pressure turbine system with attemperator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720810477.5U CN206903698U (en) | 2017-07-05 | 2017-07-05 | Back pressure turbine system with attemperator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206903698U true CN206903698U (en) | 2018-01-19 |
Family
ID=61293571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720810477.5U Active CN206903698U (en) | 2017-07-05 | 2017-07-05 | Back pressure turbine system with attemperator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206903698U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058902A (en) * | 2019-11-28 | 2020-04-24 | 云南固废投资有限公司 | Energy-saving system and energy-saving control method based on industrial steam turbine asynchronous power generation |
| CN112112691A (en) * | 2020-10-16 | 2020-12-22 | 河北冀研能源科学技术研究院有限公司 | Asynchronous power generation system for cascade utilization of industrial steam of thermal power plant and adjusting method |
-
2017
- 2017-07-05 CN CN201720810477.5U patent/CN206903698U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058902A (en) * | 2019-11-28 | 2020-04-24 | 云南固废投资有限公司 | Energy-saving system and energy-saving control method based on industrial steam turbine asynchronous power generation |
| CN112112691A (en) * | 2020-10-16 | 2020-12-22 | 河北冀研能源科学技术研究院有限公司 | Asynchronous power generation system for cascade utilization of industrial steam of thermal power plant and adjusting method |
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