CN202047869U - Steam turbine set steam sealing pressure equalizing box device - Google Patents
Steam turbine set steam sealing pressure equalizing box device Download PDFInfo
- Publication number
- CN202047869U CN202047869U CN2011201506686U CN201120150668U CN202047869U CN 202047869 U CN202047869 U CN 202047869U CN 2011201506686 U CN2011201506686 U CN 2011201506686U CN 201120150668 U CN201120150668 U CN 201120150668U CN 202047869 U CN202047869 U CN 202047869U
- Authority
- CN
- China
- Prior art keywords
- unit
- steam
- turbine set
- steam turbine
- surge tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a steam turbine set steam sealing pressure equalizing box device, which comprises a pressure equalizing box body and a number two self-operated adjusting valve, wherein the air inlet end of the box body is connected with a novel steam inlet pipe of a steam turbine set, and the number two self-operated adjusting valve is directly communicated with the pressure equalizing box body through a pipeline. Due to the adoption of the steam turbine set steam sealing pressure equalizing box device, the expansion difference of the steam turbine set is a positive value during the starting and operating process, and the steam turbine set can be ensured to start in time and to run safely, stably and economically within the requirement range.
Description
Technical field
The utility model relates to a kind of steam turbine set packing surge tank device, belongs to the improvement of steam turbine set packing surge tank linkage structure.
Background technique
The packing surge tank is the facility that mainly seals to unit antero posterior axis gland sealing steam supply, and the vapour source that feeds the packing surge tank has unit initial steam, oxygen-eliminating device vapour balance vapour, unit front axle inside front cover shelves leakage vapour and unit to draw gas for two sections.In order to control packing surge tank pressure of steam supply and feed air temperature, the packing surge tank is provided with one tunnel cooling water that utilizes the unit water of condensation to lower the temperature, and No. 1 and No. 2 direct-operated regulators of two counterproductives are arranged.When unit is started shooting, need be beneficial to the foundation of unit vacuum to the forward and backward axle envelope of packing surge tank introducing unit initial steam or oxygen-eliminating device vapour balance vapour supply unit, with the unit initial steam time, can feed water of condensation and carry out temperature control.Behind the formal on-load of unit, utilize two sections of units to draw gas and front axle inside front cover shelves leak the direct-operated regulator of vapour by two counterproductives for unit packing surge tank, and then keep the degree of vacuum of unit by surge tank for the unit rear shaft seal.Its deficiency one is to insert because of unit packing surge tank has the water of condensation of low temperature vapour source and cooling, causes the rotor of unit to be cooled after unit packing surge tank input, thereby influences the unit normal boot-strap; Have again be exactly unit packing surge tank link to each other with unit condenser cause unit gland sealing steam supply pressure raising relatively the difficulty, influence the unit vacuum sometimes.
Summary of the invention
The purpose of this utility model is to provide a kind of steam turbine set packing surge tank device, can make unit unit in start and running expand difference all be on the occasion of, and in claimed range, guarantee unit in time open machine and safely, stablize, economical operation.
The purpose of this utility model is to realize like this, a kind of steam turbine set packing surge tank device, comprise surge tank casing and No. 2 direct-operated regulators, the inlet end of casing is connecting unit initial steam suction tude, and No. 2 direct-operated regulators of this device directly are connected with the surge tank casing by pipeline.
The utility model 1, original unit packing surge tank is blocked with the pipeline that oxygen-eliminating device vapour balance vapour source links to each other, and block the unit water of condensation cooling pipeline that supplies water.2, the pipe valve that original unit packing surge tank linked to each other with vapour condenser is removed (or close forbid operation), and the pipe valve that No. 2 direct-operated regulators link to each other with vapour condenser is removed (or close and forbid to operate).
Like this,When unit is prepared the start red switch, just supply unit packing surge tank with the unit initial steam, steam supply vapour source as the forward and backward axle envelope of unit, super only 350 ℃ of the forward and backward shaft seal steam temperature of unit, guaranteed unit start red switch to the bloated difference of the charged load stage of set grid-connection on the occasion of, and within claimed range.
Behind the charged load of set grid-connection 10MW, along with two sections of units draw gas and front axle inside front cover shelves leak the vapour vapour pressure and raise and can satisfy the requirement of unit packing surge tank steam supply, can close unit initial steam vapour source this moment, by the packing surge tank with direct-operated regulator set unit gland sealing steam supply pressure, No. 1 direct-operated regulator just can be regulated the size of air inflow automatically according to packing pressure height, satisfies the requirement of unit gland sealing steam supply.The utility model is simple in structure, can make unit unit in start and running expand difference all be on the occasion of, and in claimed range, guarantee unit in time open machine and safely, stablize, economical operation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a linkage structure schematic representation of the present utility model.
Embodiment
A kind of steam turbine set packing surge tank device, as shown in Figure 1, comprise surge tank casing 1 and No. 2 direct-operated regulators 3, the inlet end of casing 1 is connecting unit initial steam suction tude 2, and No. 2 direct-operated regulators 3 of this device directly are connected with surge tank casing 1 by pipeline.The utility model 1, original unit packing surge tank casing 1 is blocked with the pipeline that oxygen-eliminating device vapour balance vapour source links to each other, and block the unit water of condensation that on unit antero posterior axis envelope supply air line 4, the connects cooling pipeline that supplies water.2, the pipe valve that original unit packing surge tank linked to each other with vapour condenser is removed (or close forbid operation), and the pipe valve that No. 2 direct-operated regulators 3 link to each other with vapour condenser is removed (or close and forbid to operate).
The utility model make unit unit in start and running expand difference all be on the occasion of, and in claimed range, guarantee unit in time open machine and safely, stablize, economical operation.
Claims (1)
1. steam turbine set packing surge tank device, comprise surge tank casing and No. 2 direct-operated regulators, it is characterized in that: the inlet end of casing is connecting unit initial steam suction tude, and No. 2 direct-operated regulators of this device directly are connected with the surge tank casing by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201506686U CN202047869U (en) | 2011-05-12 | 2011-05-12 | Steam turbine set steam sealing pressure equalizing box device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201506686U CN202047869U (en) | 2011-05-12 | 2011-05-12 | Steam turbine set steam sealing pressure equalizing box device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047869U true CN202047869U (en) | 2011-11-23 |
Family
ID=44988180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201506686U Expired - Fee Related CN202047869U (en) | 2011-05-12 | 2011-05-12 | Steam turbine set steam sealing pressure equalizing box device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628934A (en) * | 2013-11-11 | 2014-03-12 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
| CN106305987A (en) * | 2016-08-17 | 2017-01-11 | 江苏杰英能源科技有限公司 | Surge tank treatment device in vegetable dehydration equipment |
-
2011
- 2011-05-12 CN CN2011201506686U patent/CN202047869U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628934A (en) * | 2013-11-11 | 2014-03-12 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
| CN103628934B (en) * | 2013-11-11 | 2015-07-15 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
| CN106305987A (en) * | 2016-08-17 | 2017-01-11 | 江苏杰英能源科技有限公司 | Surge tank treatment device in vegetable dehydration equipment |
| CN106305987B (en) * | 2016-08-17 | 2020-02-21 | 重庆精康农业发展有限公司 | Treatment device for equalizing box in vegetable dehydration equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107246284B (en) | A kind of shaft seal steam supply system of the extra-supercritical unit containing electric heater | |
| CN103452600A (en) | Steam turbine generating system with indirect regulation on regenerative side and primary frequency regulating method | |
| CN104018890A (en) | Turbine low pressure cylinder end shaft seal steam supply system | |
| CN202047869U (en) | Steam turbine set steam sealing pressure equalizing box device | |
| CN107060922B (en) | Auxiliary steam system of thermal power plant and steam supply method thereof | |
| CN104074552B (en) | Utilize the system and method for packing cooling down high-temperature turbine rotor | |
| CN205135725U (en) | Power plant's unit bearing seal supplies vapour device | |
| CN206816311U (en) | The auxiliary vapour system in thermal power plant | |
| CN103670547B (en) | Method for enhancing heat supply capability of three-steam-exhaust 200MW turboset | |
| CN105019957A (en) | Efficient heat regenerative system and method | |
| CN203879554U (en) | Three-level water seal device of thermal power plant sealing heater | |
| CN204851349U (en) | High -efficient heat regenerative system | |
| CN204877556U (en) | Pressure stability device | |
| CN203906014U (en) | Steam supplying system of turbine low-pressure cylinder end shaft seal | |
| CN201982145U (en) | Shaft seal system of extraction condensing or condensing turbine | |
| CN204478860U (en) | Plant condenser three grades of Roots's variable frequency pump group energy efficiency vacuum maintain system | |
| CN104155946A (en) | Automatic conveying system for yellow phosphorus electric furnace tail gas | |
| CN204532443U (en) | The circulatory system of the obstruct liquid of mechanical seal component | |
| CN109404075A (en) | Small turbine back pressure controls therrmodynamic system and its control method | |
| CN201714437U (en) | Steam turbine with steam extraction back pressure type changed from double-steam-extraction condensing type | |
| CN201650387U (en) | Device for cooling high pressure cylinder of steam turbine | |
| CN208578589U (en) | A kind of steam turbine gland system of overflow heat recovery cascade utilization | |
| CN101967998B (en) | System for recycling control water of steam turbine and axial drained water | |
| CN204267159U (en) | A kind of natural gas boosting system | |
| CN203114356U (en) | Shaft seal gas supply system of steam turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20120512 |