CN112431637A - Auxiliary steam header system and power supply system - Google Patents
Auxiliary steam header system and power supply system Download PDFInfo
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- CN112431637A CN112431637A CN202011307375.4A CN202011307375A CN112431637A CN 112431637 A CN112431637 A CN 112431637A CN 202011307375 A CN202011307375 A CN 202011307375A CN 112431637 A CN112431637 A CN 112431637A
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- auxiliary steam
- steam header
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/003—Arrangements for testing or measuring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
The invention discloses an auxiliary steam header system and a power supply system, wherein the auxiliary steam header system comprises an auxiliary steam header, a steam pipeline for small machine debugging, a first stop valve and a balance pipe, wherein the auxiliary steam header is used for generating high-temperature steam; a steam pipeline for small machine debugging is communicated with the auxiliary steam header; the first stop valve is arranged between the steam pipeline for the small machine debugging and the auxiliary steam header or arranged on the steam pipeline for the small machine debugging; the two ends of the balance pipe are respectively communicated with the auxiliary steam header and the steam pipeline for the small machine debugging, and the balance pipe is located at one end, far away from the auxiliary steam header, of the first stop valve. The auxiliary steam header system of the technical scheme of the invention can drain the condensed water between the first stop valve and the steam pipeline for small machine debugging, and avoid damaging the blades of the steam turbine.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to an auxiliary steam header system and a power supply system.
Background
The auxiliary steam header system in the related technology comprises an auxiliary steam internal gas source pipeline, an auxiliary steam header and a steam pipeline for small machine debugging, which are sequentially communicated, wherein a stop valve is arranged between the steam pipeline for small machine debugging and the auxiliary steam header; after the stop valve stops the flow path between the steam pipeline for small machine debugging and the auxiliary steam header, the steam pipeline for small machine debugging is greatly reduced in temperature, so that more water vapor is condensed to form condensed water, the condensed water is accumulated between the stop valve and the steam pipeline for small machine debugging, and the accumulated condensed water can cause damage to blades of a steam turbine due to vibration caused by water attack and water inflow of a small steam turbine.
Disclosure of Invention
The invention mainly aims to provide an auxiliary steam header system and a power supply system, aiming at removing condensed water between a first stop valve and a steam pipeline for small machine debugging and avoiding damaging blades of a steam turbine.
In order to achieve the above object, the present invention provides an auxiliary steam header system, including:
the auxiliary steam header is used for generating high-temperature steam;
the steam pipeline for the small machine debugging is communicated with the auxiliary steam header;
the first stop valve is arranged between the steam pipeline for the small machine debugging and the auxiliary steam header or arranged on the steam pipeline for the small machine debugging; and
and the two ends of the balance pipe are respectively communicated with the auxiliary steam header and the steam pipeline for the small machine debugging, and the balance pipe is positioned at one end, far away from the auxiliary steam header, of the first stop valve.
In one embodiment, the auxiliary steam header system further comprises a second stop valve provided in the balance pipe.
In an embodiment, the auxiliary steam header system further includes a third stop valve disposed on the balance pipe, and the third stop valve is spaced from the second stop valve.
In one embodiment, the balance tube is a helical tube.
In one embodiment, the outer wall of the steam pipeline for debugging the small machine is provided with an insulating layer.
In one embodiment, the pipe diameter of the balance pipe is smaller than that of the steam pipeline for debugging the small machine.
In an embodiment, the auxiliary steam header system further comprises a main controller and a temperature sensor arranged in the steam pipeline for the small machine debugging, the temperature sensor is arranged at an interval with the first stop valve and is electrically connected with the main controller, and the temperature sensor is used for detecting the temperature change of the steam pipeline for the small machine debugging so as to enable the main controller to control the opening and closing of the second stop valve and the third stop valve.
In an embodiment, the auxiliary steam header system further includes a water level sensor disposed in the steam pipeline for the mini-machine debugging, the water level sensor is electrically connected to the main controller, and the water level sensor is disposed at an interval with the first stop valve and the temperature sensor and is used for detecting the water depth of the steam pipeline for the mini-machine debugging.
In an embodiment, the auxiliary steam header system further comprises a prompting lamp arranged on the outer wall of the auxiliary steam header, wherein the prompting lamp is electrically connected with the main controller and used for prompting a user whether water is accumulated in a steam pipeline during debugging of the small machine.
The invention further provides a power supply system which comprises the auxiliary steam header system and a steam turbine, wherein the steam turbine is connected with the small strip trial steam pipeline of the auxiliary steam header system.
The auxiliary steam header system comprises an auxiliary steam header, a steam pipeline for small machine debugging, a first stop valve and a balance pipe, wherein the auxiliary steam header is used for generating high-temperature steam; the steam pipeline for the small machine debugging is communicated with the auxiliary steam header; the first stop valve is arranged between the steam pipeline for the small machine debugging and the auxiliary steam header or arranged in the steam pipeline for the small machine debugging; two ends of the balance pipe are respectively communicated with the auxiliary steam header and a steam pipeline for small machine debugging, and the balance pipe is positioned at one end of the first stop valve, which is far away from the auxiliary steam header; so set up, continue to let in the high temperature steam of assisting the vapour header through the balance pipe for the steam conduit for the small computer debugging keeps high temperature, and then the air in the steam conduit for the small computer debugging can not the heat transfer condensation form ponding, thereby gets rid of the comdenstion water between the steam conduit for first stop valve and the small computer debugging, avoids damaging the blade of steam turbine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an auxiliary steam header system according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
50 | |
| 10 | |
60 | |
| 20 | Steam pipeline for debugging |
70 | |
| 30 | |
80 | |
| 40 | Balance tube |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an auxiliary steam header system.
In the embodiment of the present invention, referring to fig. 1, the auxiliary steam header system includes an auxiliary steam header 10, a steam pipeline 20 for small machine debugging, a first stop valve 30, and a balance pipe 40, where the auxiliary steam header 10 is used to generate high-temperature steam; a steam pipeline 20 for debugging the small machine is communicated with the auxiliary steam header 10; the first stop valve 30 is arranged between the steam pipeline 20 for small machine debugging and the auxiliary steam header 10 or arranged in the steam pipeline for small machine debugging; the two ends of the balance pipe 40 are respectively communicated with the auxiliary steam header 10 and the steam pipeline 20 for the small machine debugging, and the balance pipe 40 is positioned at one end of the first stop valve 30 far away from the auxiliary steam header 10.
In this embodiment, the steam pipeline 20 for small machine debugging is communicated with the steam turbine body, and after the steam turbine body is started, the steam pipeline 20 for small machine debugging brings high-temperature steam into the steam turbine body through the auxiliary steam header 10, so that the steam turbine body can run to generate power; when the steam turbine body does not start, control first stop valve 30 and close, the disconnection tip turbine is transferred and is used steam conduit 20 and the being connected of assisting vapour header 10, steam conduit 20 does not have the letting in of the high temperature steam of assisting vapour header 10 for the tip turbine is transferred this moment, make the tip turbine in the steam conduit 20 temperature reduction of using, continue to let in the high temperature steam of assisting vapour header 10 through balance pipe 40 this moment, steam conduit 20 keeps high temperature for the tip turbine is transferred, and then air in the steam conduit 20 can not the heat transfer condensation formation ponding for the tip turbine is transferred, thereby get rid of the comdenstion water between steam conduit 20 for the first stop valve 30 and the tip turbine, avoid damaging the blade of steam turbine. It should be noted that when the auxiliary steam header system is operating normally, the steam pipeline 20 for the debugging of the small machine is in communication with the steam turbine and the first stop valve 30.
The auxiliary steam header system comprises an auxiliary steam header 10, a steam pipeline 20 for small machine debugging, a first stop valve 30 and a balance pipe 40, wherein the auxiliary steam header 10 is used for introducing high-temperature steam; the steam pipeline 20 for the small machine debugging is communicated with the auxiliary steam header 10; the first stop valve 30 is arranged between the steam pipeline 20 for the small machine debugging and the auxiliary steam header 10; two ends of the balance pipe 40 are respectively communicated with the auxiliary steam header 10 and the steam pipeline 20 for small machine debugging, and the balance pipe 40 is positioned at one end of the first stop valve 30 far away from the auxiliary steam header 10; so set up, continue to let in the high temperature steam of assisting vapour header 10 through balance pipe 40 for the steam pipe 20 keeps high temperature for the small machine debugging, and then the air in the steam pipe 20 can not the heat transfer condensation form ponding for the small machine debugging, thereby get rid of the comdenstion water between the steam pipe 20 for the stop valve and the small machine debugging, avoid haring the blade of steam turbine.
In one embodiment, referring to FIG. 1, the auxiliary steam header system further includes a second shut-off valve 50 disposed in the balancing pipe 40.
In this embodiment, the balance pipe 40 includes a first pipe and a second pipe connected to the first pipe, one end of the first pipe, which is far away from the second pipe, is connected to the steam pipe 20 for the debugging of the small computer, one end of the second pipe, which is far away from the first pipe, is connected to the auxiliary steam header, and the second stop valve 50 is specifically disposed in the second pipe of the balance pipe; after the first stop valve 30 breaks the connecting line between the steam pipeline 20 for the minor tune away and the auxiliary steam header 10, the second stop valve 50 is controlled to be opened at this moment, so that the balance pipe 40 is communicated with the steam pipeline 20 for the minor tune away and the auxiliary steam header 10, high-temperature steam in the auxiliary steam header 10 is introduced into the steam pipeline 20 for the minor tune away through the balance pipe 40, the temperature in the steam pipeline 20 for the minor tune away is increased, and the heat exchange and condensation of the steam pipeline 20 for the minor tune away are avoided. After the first stop valve 30 opens the communication pipeline for communicating the steam pipeline 20 for the small machine debugging and the auxiliary steam header 10, the second stop valve 50 is controlled to be closed at the moment, so that the auxiliary steam header 10 enters the steam pipeline 20 for the small machine debugging again according to the original pipeline.
In one embodiment, referring to fig. 1, the auxiliary steam header system further includes a third stop valve 60 disposed on the balance pipe 40, and the third stop valve 60 is spaced apart from the second stop valve 50.
In this embodiment, a third shut-off valve 60 is provided in the first conduit, adjacent to the steam line 20 for the turndown of the machine; if the second stop valve 50 is in failure, the connection or disconnection of the balance pipe 40 can be controlled through the third stop valve 60 on the balance pipe 40, so that the normal operation of the balance pipe 40 is ensured, and the stability of the auxiliary steam header system is improved.
In one embodiment, referring to FIG. 1, the balance tube 40 is a helical tube. So set up, through the length of extension balance pipe 40, and then increase balance pipe 40's volume to make more high temperature steam can get into steam pipe 20 for the microcomputer debugging, make steam pipe 20 for the microcomputer debugging also can keep high temperature under first check valve 30 closed condition, thereby make the unable heat transfer condensation of vapor in the air gather steam pipe 20 for the microcomputer debugging.
In one embodiment, referring to fig. 1, the outer wall of the steam pipeline 20 for debugging the small machine is provided with an insulating layer. So set up, close when first check valve 30 for steam pipe 20 is used in the small machine debugging can't directly follow first check valve 30 and pass into high temperature steam, and the heat preservation can suitably slow down the cooling rate of steam pipe 20 is used in the small machine debugging, thereby lets balance pipe 40 have sufficient time with the small machine debugging steam pipe 20 promotes the temperature again.
In one embodiment, referring to FIG. 1, the balance tube 40 has a tube diameter less than the tube diameter of the steam line 20 for the debugging of the machine. So set up for balance pipe 40 only needs to let in the steam pipe way 20 for the small airplane debugging with the partial high temperature steam of assisting vapour header 10, can promote the steam pipe way 20 for the small airplane debugging, and can avoid too much high temperature steam to get into the steam pipe way 20 for the small airplane debugging, leads to starting to operate with the steam turbine of the steam pipe way 20 for the small airplane debugging at the high temperature steam drive that does not have sufficient volume, influences the normal operating of steam turbine.
In an embodiment, referring to fig. 1, the auxiliary steam header system further includes a main controller and a temperature sensor 70 disposed in the steam pipe 20 for the debugging of the small machine, wherein the temperature sensor 70 is disposed at an interval from the first cut-off valve 30 and electrically connected to the main controller; the temperature sensor 70 is used for detecting the temperature change of the steam pipeline 20 for the debugging of the small machine, so that the main controller controls the opening and closing of the second stop valve 50 and the third stop valve 60.
In this embodiment, after temperature sensor 70 detected the temperature reduction of steam pipe 20 for the cell debugging, sent the signal of telecommunication to the master controller, the master controller in time controlled opening of second stop valve 50 and third stop valve 60 according to the signal of telecommunication to steam pipe 20 and auxiliary steam header 10 are used in usable balance pipe 40 intercommunication cell debugging, make the cell debugging steam pipe 20 keep high temperature.
In an embodiment, referring to fig. 1, the auxiliary steam header system further includes a water level sensor 80 disposed in the steam pipe 20 for the debugging of the small machine, the water level sensor 80 is electrically connected to the main controller, and the water level sensor 80 is disposed at an interval from the first cut-off valve 30 and the temperature sensor 70, and is configured to detect a water depth of the steam pipe 20 for the debugging of the small machine.
In this embodiment, after the steam turbine and the auxiliary steam header 10 both stop for a short time, the air in the steam pipeline 20 for the small machine debugging still exchanges heat and is condensed into condensed water; at this moment, detect the ponding water level of steam pipe 20 for the cell debugging through level sensor 80, after there is ponding in steam pipe 20 for the cell debugging, the master controller is according to the signal of telecommunication that level sensor 80 sent, and then control second stop valve 50 or third stop valve 60 and open to steam pipe 20 for the cell debugging lets in high temperature through balance pipe 40 and keeps high temperature.
In an embodiment, referring to fig. 1, the auxiliary steam header system further includes a prompting lamp disposed on an outer wall of the auxiliary steam header 10, and the prompting lamp is electrically connected to the main controller and is used for prompting whether water is accumulated in the steam pipeline 20 for debugging the microcomputer. So set up, after water level sensor 80 detected that steam pipe 20 has ponding for the cell debugging, master controller control warning light shines to steam pipe 20 has ponding for the user cell debugging of suggestion user, makes the user can carry out the management and control work on next step according to the suggestion of warning light.
The invention further provides a power supply system, which comprises an auxiliary steam header system and a steam turbine, wherein the steam turbine is connected with the steam pipeline for trial use of the small strips of the auxiliary steam header system, the specific structure of the auxiliary steam header system refers to the embodiments, and the power supply system adopts all the technical schemes of all the embodiments, so that the power supply system at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An auxiliary steam header system, comprising:
the auxiliary steam header is used for generating high-temperature steam;
the steam pipeline for the small machine debugging is communicated with the auxiliary steam header;
the first stop valve is arranged between the steam pipeline for the small machine debugging and the auxiliary steam header or arranged on the steam pipeline for the small machine debugging; and
and the two ends of the balance pipe are respectively communicated with the auxiliary steam header and the steam pipeline for the small machine debugging, and the balance pipe is positioned at one end, far away from the auxiliary steam header, of the first stop valve.
2. The auxiliary steam header system of claim 1 further comprising a second stop valve disposed in the balance pipe.
3. The auxiliary steam header system of claim 2 further comprising a third stop valve disposed in the balance tube, the third stop valve being spaced from the second stop valve.
4. The auxiliary steam header system of claim 1 wherein the balance tube is a helical tube.
5. The auxiliary steam header system of claim 1, wherein the outer wall of the steam pipeline for the debugging of the small machine is provided with an insulating layer.
6. The auxiliary steam header system of claim 1 wherein the balance pipe has a pipe diameter less than a pipe diameter of the steam line for the minor tune.
7. The auxiliary steam header system as claimed in any one of claims 1 to 6, further comprising a main controller and a temperature sensor arranged in the steam pipeline for the debugging of the small machine, wherein the temperature sensor is arranged at a distance from the first stop valve and is electrically connected with the main controller, and the temperature sensor is used for detecting the temperature change of the steam pipeline for the debugging of the small machine so that the main controller controls the opening and closing of the second stop valve and the third stop valve.
8. The auxiliary steam header system as claimed in claim 7, further comprising a water level sensor disposed in the steam pipeline for the small turbine debugging, wherein the water level sensor is electrically connected to the main controller, and the water level sensor is disposed at a distance from the first stop valve and the temperature sensor, and is configured to detect a water depth of the steam pipeline for the small turbine debugging.
9. The auxiliary steam header system of claim 8, further comprising a prompting lamp arranged on the outer wall of the auxiliary steam header, wherein the prompting lamp is electrically connected with the main controller and used for prompting a user whether water is accumulated in the steam pipeline for the debugging of the small machine.
10. A power supply system comprising the auxiliary steam header system according to any one of claims 1 to 9 and a steam turbine connected to the strip pilot steam line of the auxiliary steam header system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011307375.4A CN112431637A (en) | 2020-11-20 | 2020-11-20 | Auxiliary steam header system and power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011307375.4A CN112431637A (en) | 2020-11-20 | 2020-11-20 | Auxiliary steam header system and power supply system |
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| CN112431637A true CN112431637A (en) | 2021-03-02 |
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| CN202011307375.4A Pending CN112431637A (en) | 2020-11-20 | 2020-11-20 | Auxiliary steam header system and power supply system |
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|---|---|---|---|---|
| JP2010159713A (en) * | 2009-01-09 | 2010-07-22 | Hitachi Ltd | Device for controlling temperature decrease of turbine gland seal steam, and method of controlling plant for steam turbine power generation facility |
| CN203420745U (en) * | 2013-07-05 | 2014-02-05 | 大唐洛阳首阳山发电有限责任公司 | Steam cylinder pre-heating system for turbines |
| CN208024407U (en) * | 2018-02-06 | 2018-10-30 | 深圳妈湾电力有限公司 | A kind of small arbor gland sealing steam supply system |
| CN110159360A (en) * | 2019-06-11 | 2019-08-23 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of Gas-steam Combined Cycle power plant shaft seal steam supply system and steam supplying method |
| CN214577214U (en) * | 2020-11-20 | 2021-11-02 | 沧州华润热电有限公司 | Auxiliary steam header system and power supply system |
-
2020
- 2020-11-20 CN CN202011307375.4A patent/CN112431637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010159713A (en) * | 2009-01-09 | 2010-07-22 | Hitachi Ltd | Device for controlling temperature decrease of turbine gland seal steam, and method of controlling plant for steam turbine power generation facility |
| CN203420745U (en) * | 2013-07-05 | 2014-02-05 | 大唐洛阳首阳山发电有限责任公司 | Steam cylinder pre-heating system for turbines |
| CN208024407U (en) * | 2018-02-06 | 2018-10-30 | 深圳妈湾电力有限公司 | A kind of small arbor gland sealing steam supply system |
| CN110159360A (en) * | 2019-06-11 | 2019-08-23 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of Gas-steam Combined Cycle power plant shaft seal steam supply system and steam supplying method |
| CN214577214U (en) * | 2020-11-20 | 2021-11-02 | 沧州华润热电有限公司 | Auxiliary steam header system and power supply system |
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