CN110374699A - Steam turbine vacuum pipe drainage arrangement and water discharge method - Google Patents
Steam turbine vacuum pipe drainage arrangement and water discharge method Download PDFInfo
- Publication number
- CN110374699A CN110374699A CN201910506191.1A CN201910506191A CN110374699A CN 110374699 A CN110374699 A CN 110374699A CN 201910506191 A CN201910506191 A CN 201910506191A CN 110374699 A CN110374699 A CN 110374699A
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- header tank
- steam turbine
- pump
- pipe
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 238000000605 extraction Methods 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a kind of steam turbine vacuum pipe drainage arrangement and water discharge methods.The device includes connecting pipe and header tank, connecting pipe has opposite first end and second end, the first end of connecting pipe is connected to the vacuum tube of steam turbine, and discharging valve is provided in connecting pipe, and the second end of connecting pipe is located at the lower section of the first end of first pipe；The top of header tank has water inlet, and the top of header tank is connected to by water inlet with the second end of connecting pipe.This method comprises: opening the discharging valve in connecting pipe, the ponding in air hose flows to header tank by gravity；After the ponding in air hose flows to header tank, when the vacuum values in air hose restore normal, the discharging valve in connecting pipe is closed.The present invention can bleed off the ponding in air hose in the case where not influencing condenser vacuum, restore the circulation area of air hose, guarantee the purpose of Steam Turbine economy and safe operation.
Description
Technical field
The invention belongs to steam turbine operation technical field more particularly to a kind of steam turbine vacuum pipe drainage arrangement and draining sides
Method.
Background technique
When Steam Turbine vacuum system operates normally, constantly extracts out and leak into steam turbine and condenser not by different approaches
Noncondensing gas, to be used to establish and maintain the low back pressure of steam-turbine unit and the vacuum of condenser.
When Steam Turbine vacuum system is run in winter, since the reduction of weather temperature is easy to make the condenser in air hose to take out
Gas coagulates generation water accumulation of pipeline, and then the circulation area of air hose is made to reduce the efficiency for influencing air ejector, last direct shadow
Ring to condenser vacuum (by it is normal when -0.094MPa drop to -0.088MPa).For this purpose, being wanted when steam turbine operates normally
By this part, ponding is bled off, and can just vacuum be made to be restored to normal value.
In the implementation of the present invention, it is found by the applicant that at least having the disadvantage that in the prior art
In the prior art, when steam turbine operates normally, air hose is vacuum state, passes through the air hose wicket at scene
Ponding in vacuum tube can not be released, can directly be connected with atmosphere because of vacuum system aggravate condenser vacuum instead
It reduces.The economy of steam turbine operation is not only influenced whether in this way, it is often more important that pole also proposed to the safe operation of unit
Big challenge.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of steam turbine vacuum pipe drainage arrangement and draining side are proposed
Method restores the circulation area of air hose to bleed off the ponding in air hose in the case where not influencing condenser vacuum, guarantees
The safe operation of Steam Turbine.
On the one hand, the invention discloses a kind of steam turbine vacuum pipe drainage arrangement, described device includes connecting pipe sum aggregate
Water tank, in which:
The connecting pipe has an opposite first end and second end, the first end of the connecting pipe and steam turbine it is true
Blank pipe connection, is provided with discharging valve in the connecting pipe, and the second end of the connecting pipe is located at the of the first pipe
The lower section of one end；
The top of the header tank has water inlet, and the top of the header tank passes through the water inlet and the connecting tube
The second end in road is connected to.
Further, it is sequentially connected in series in the connecting pipe and is provided at least two discharging valves, steamer can be prevented
Leakproofness when unit vacuum system is run.
Further, the bottom of the connecting pipe is provided with discharge outlet；
Described device further includes drainage pipeline, and the drainage pipeline has opposite first end and second end, the draining
The first end of pipeline is connected to the discharge outlet, and the second end of the drainage pipeline is away from each other the direction setting of the header tank,
Drain valve is provided on the drainage pipeline.
Further, the header tank is internally provided with online liquid level sensor, and the online liquid level sensor is located at
Between the water inlet and the discharge outlet.
Further, described device further includes draining pump, and the draining pump is arranged on the drainage pipeline, the draining
Valve is arranged between the first end of the drainage pipeline and the draining pump.
Further, bleeding point is additionally provided on the header tank；
Described device further includes pump-line, and the pump-line has opposite first end and second end, the pumping
The first end of pipeline is connected to the bleeding point, and the second end of the pump-line is away from each other the direction setting of the header tank,
It is provided with extraction valve and aspiration pump on the pump-line, the first end of the pump-line and described is arranged in the extraction valve
Between aspiration pump.
On the other hand, the present invention also provides a kind of steam turbine vacuum pipe water discharge method, the water discharge method is using upper
The progress of steam turbine vacuum pipe drainage arrangement is stated, the water discharge method includes:
The discharging valve in the connecting pipe is opened, the ponding in air hose flows to the header tank by gravity；
After the ponding in air hose flows to header tank, when the vacuum values in the air hose restore normal, described in closing
Discharging valve in connecting pipe.
Further, before opening the discharging valve in the connecting pipe, further includes:
Make inside the header tank in vacuum state.
Further, it closes after the discharging valve in the connecting pipe, further includes:
The ponding in the header tank is discharged.
Compared with prior art, the beneficial effect comprise that
A kind of steam turbine vacuum pipe drainage arrangement disclosed in this invention, due to the first end and steam turbine of connecting pipe
Vacuum tube is connected to, and is provided with discharging valve in connecting pipe, and the second end of connecting pipe is located at the lower section of the first end of first pipe,
And the top of header tank has water inlet, the top of header tank is connected to the second end of connecting pipe, when in steam turbine air hose
When having ponding, i.e., discharging valve in openable connecting pipe, the ponding in air hose is flowed to by gravity by connecting pipe
Header tank can close connection when the vacuum values after ponding in air hose flows to header tank, and in air hose restore normal
Discharging valve on pipeline restores empty so as to bleed off the ponding in air hose in the case where not influencing condenser vacuum
The circulation area of tracheae guarantees the purpose of Steam Turbine economy and safe operation.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of steam turbine vacuum pipe drainage arrangement of the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of steam turbine vacuum pipe water discharge method of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
On the one hand, the embodiment of the invention discloses a kind of steam turbine vacuum pipe drainage arrangements.
Fig. 1 is a kind of structural schematic diagram of steam turbine vacuum pipe drainage arrangement of the embodiment of the present invention, in conjunction with Fig. 1, this hair
A kind of steam turbine vacuum pipe drainage arrangement of bright embodiment, including connecting pipe 1 and header tank 2, connecting pipe 1 have opposite
First end and second end, the first end of connecting pipe 1 are connected to the vacuum tube 3 of steam turbine, are provided with discharging valve in connecting pipe 1
4, the second end of connecting pipe 1 is located at the lower section of the first end of first pipe 1；And the top of header tank 2 has water inlet, catchments
The top of case 2 is connected to by water inlet with the second end of connecting pipe 1.
In conjunction with Fig. 1, in the embodiment of the present invention, the both ends of vacuum tube 3 connect with condenser 5 and jetting pumping body device 6 respectively
Logical, incondensable gas in condenser 5 and a small amount of steam are drawn into mixing chamber by water jet air ejector 6, then are subject to diffusion and are discharged into
In jetting case, incondensable gas contained in the air and steam that leak into condenser is continuously extracted out, keeps solidifying
Vapour device is run under high vacuum always.
When air hose ponding, the discharging valve in connecting pipe can be opened, the ponding in air hose is flowed to by gravity
Header tank can close connection when the vacuum values after ponding in air hose flows to header tank, and in air hose restore normal
Discharging valve on pipeline restores empty so as to bleed off the ponding in air hose in the case where not influencing condenser vacuum
The circulation area of tracheae guarantees the purpose of Steam Turbine economy and safe operation.
Further, it in conjunction with Fig. 1, is sequentially connected in series in the connecting pipe 1 of the embodiment of the present invention and is provided at least two and discharges water
Valve 4 can guarantee the leakproofness when operation of Steam Turbine vacuum system in this way.
Further, in conjunction with Fig. 1, in the embodiment of the present invention, the bottom of connecting pipe 1 is provided with discharge outlet, and the device is also
Including drainage pipeline 7, drainage pipeline 7 has opposite first end and second end, and the first end and discharge outlet of drainage pipeline 7 connect
Logical, the second end of drainage pipeline 7 is away from each other the direction setting of header tank 2, is provided with drain valve 8 on drainage pipeline 7, when need by
When ponding in header tank 2 is discharged, drain valve 8 is opened, the ponding in header tank 2 can pass through drainage pipeline 7 and header tank 2 is discharged
It is external.
Further, in conjunction with Fig. 1, the drainage arrangement of the embodiment of the present invention can also include draining pump 9, which sets
It sets on drainage pipeline 7, drain valve 8 is arranged between the first end of drainage pipeline 7 and draining pump 9, can be with by draining pump 9
Ponding in header tank 2 is rapidly and thoroughly discharged.
It should be noted that the ponding in header tank 2 can periodically be discharged in the embodiment of the present invention.
For the ponding capacity accurately reflected in header tank, the embodiment of the present invention can be set in the inside of header tank 2
There is online liquid level sensor 13, which can be draining pump 9 between water inlet and discharge outlet
Starting makes reference data, quickly the ponding in header tank 2 to be discharged.
Of course, it is possible to by the way of observation, to determine that the ponding in header tank 2 is located at below water inlet, for example, collecting
Observation window is set on the surface of water tank 2, alternatively, header tank is made of transparent material, the embodiment of the present invention to this with no restriction.
In addition, in order to prevent during the discharge of the ponding of vacuum tube 3, survival gas passes through in header tank in conjunction with Fig. 1
Connecting pipe 1 enters in vacuum tube 3, is additionally provided with bleeding point on the header tank 2 of the embodiment of the present invention, and the drainage arrangement is also
Including pump-line 10, pump-line 10 has opposite first end and second end, the first end and bleeding point of pump-line 10
Connection, the second end of pump-line 10 are away from each other the direction setting of header tank 2, are provided with extraction valve 11 on pump-line 10 and take out
Air pump 12, extraction valve 11 are arranged between the first end of pump-line 10 and aspiration pump 12, can be with before the draining of vacuum tube 3
By aspiration pump 12, the inside of header tank 2 is carried out vacuumizing disposition, to guarantee when vacuum tube 3 drains, place in header tank 2
In vacuum state, so as to prevent during the discharge of the ponding of vacuum tube 3, gas is entered very by connecting pipe 1
Phenomenon in blank pipe 3 occurs.
On the other hand, the embodiment of the invention also provides a kind of steam turbine vacuum pipe water discharge method, which is benefit
It is carried out with above-mentioned steam turbine vacuum pipe drainage arrangement.
Fig. 2 is a kind of flow diagram of steam turbine vacuum pipe water discharge method of the embodiment of the present invention, in conjunction with Fig. 2, the row
Water method includes:
S1: make inside header tank 2 in vacuum state；
When operation, extraction valve 11 is opened, can will be vacuumized inside header tank 2 by aspiration pump 12, and then make header tank 2
Inside is in vacuum state.
S2: opening the discharging valve 4 in connecting pipe 1, and the ponding in air hose 3 flows to header tank 2 by gravity；
At this point, having ponding in vacuum tube 3, shows as condenser vacuum and drop to -0.089MPa or so, and vacuum values
With fluctuation, vacuum values are shown as over time and are further decreased.
S3: after the ponding in air hose 3 flows to header tank 2, when the vacuum values in air hose 3 restore normal, the company of closing
Discharging valve 4 on adapter tube road 1；
S4: the ponding in discharge header tank 2；
When operation, drain valve 8 can be opened, the ponding in header tank 2 can naturally drain header tank by drainage pipeline 7
Outside 2, alternatively, the ponding in header tank 2 is rapidly and thoroughly discharged by draining pump 9.
Steam turbine vacuum pipe drainage arrangement and water discharge method shown in the embodiment of the present invention are by steam turbine vacuum system
Header tank is added on system, and there is economy well, the ponding in vacuum tube can be bled off in steam turbine on-line operation,
So that condenser vacuum is restored to normal value, and then reduce the too low adverse effect to steam turbine and condenser of condenser vacuum,
Great guarantee is provided for the safe operation of Steam Turbine.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (9)
1. a kind of steam turbine vacuum pipe drainage arrangement, which is characterized in that described device includes connecting pipe and header tank, in which:
The connecting pipe has opposite first end and second end, the first end of the connecting pipe and the vacuum tube of steam turbine
It is connected to, is provided with discharging valve in the connecting pipe, the second end of the connecting pipe is located at the first end of the connecting pipe
Lower section；
The top of the header tank has water inlet, and the top of the header tank passes through the second of water inlet and the connecting pipe
End connection.
2. a kind of steam turbine vacuum pipe drainage arrangement according to claim 1, which is characterized in that in the connecting pipe according to
It is secondary to be arranged in series at least two discharging valves.
3. a kind of steam turbine vacuum pipe drainage arrangement according to claim 1, which is characterized in that the bottom of the connecting pipe
Portion is provided with discharge outlet；
Described device further includes drainage pipeline, and the drainage pipeline has opposite first end and second end, the drainage pipeline
First end be connected to the discharge outlet, the second end of the drainage pipeline be away from each other the header tank direction setting, it is described
Drain valve is provided on drainage pipeline.
4. a kind of steam turbine vacuum pipe drainage arrangement according to claim 3, which is characterized in that the inside of the header tank
It is provided with online liquid level sensor, the online liquid level sensor is between the water inlet and the discharge outlet.
5. a kind of steam turbine vacuum pipe drainage arrangement according to claim 3, which is characterized in that described device further includes row
Water pump, the draining pump are arranged on the drainage pipeline, and first end and the institute of the drainage pipeline is arranged in the drain valve
It states between draining pump.
6. a kind of steam turbine vacuum pipe drainage arrangement according to claim 1, which is characterized in that also set on the header tank
It is equipped with bleeding point；
Described device further includes pump-line, and the pump-line has opposite first end and second end, the pump-line
First end be connected to the bleeding point, the second end of the pump-line be away from each other the header tank direction setting, it is described
Extraction valve and aspiration pump are provided on pump-line, the first end and the pumping of the pump-line is arranged in the extraction valve
Between pump.
7. a kind of steam turbine vacuum pipe water discharge method, which is characterized in that the water discharge method is to utilize any one of claim 1-6
What the steam turbine vacuum pipe drainage arrangement carried out, the water discharge method includes:
The discharging valve in the connecting pipe is opened, the ponding in air hose flows to the header tank by gravity；
After the ponding in air hose flows to header tank, when the vacuum values in the air hose restore normal, the connection is closed
Discharging valve on pipeline.
8. a kind of steam turbine vacuum pipe water discharge method according to claim 7, which is characterized in that open the connecting pipe
On discharging valve before, further includes:
Make inside the header tank in vacuum state.
9. a kind of steam turbine vacuum pipe water discharge method according to claim 7, which is characterized in that close the connecting pipe
On discharging valve after, further includes:
The ponding in the header tank is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506191.1A CN110374699A (en) | 2019-06-12 | 2019-06-12 | Steam turbine vacuum pipe drainage arrangement and water discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910506191.1A CN110374699A (en) | 2019-06-12 | 2019-06-12 | Steam turbine vacuum pipe drainage arrangement and water discharge method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110374699A true CN110374699A (en) | 2019-10-25 |
Family
ID=68250150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910506191.1A Pending CN110374699A (en) | 2019-06-12 | 2019-06-12 | Steam turbine vacuum pipe drainage arrangement and water discharge method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374699A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004190623A (en) * | 2002-12-13 | 2004-07-08 | Tlv Co Ltd | Power generating device by steam |
| CN2779074Y (en) * | 2005-02-18 | 2006-05-10 | 中国电力工程顾问集团中南电力设计院 | Modified contranatant steam condensation device of direct air cooling units |
| CN202431311U (en) * | 2011-12-23 | 2012-09-12 | 临邑禹王植物蛋白有限公司 | Steam condenser |
| CN104989469A (en) * | 2015-06-11 | 2015-10-21 | 江苏永钢集团有限公司 | Stagnant water discharging device used for air exhaust pipeline of condenser |
| CN204783575U (en) * | 2015-07-15 | 2015-11-18 | 湖北中烟工业有限责任公司 | Drainage device's vacuum system is not shut down in area |
| CN105155651A (en) * | 2015-08-19 | 2015-12-16 | 清华大学深圳研究生院 | Negative pressure drainage system and drainage method |
-
2019
- 2019-06-12 CN CN201910506191.1A patent/CN110374699A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004190623A (en) * | 2002-12-13 | 2004-07-08 | Tlv Co Ltd | Power generating device by steam |
| CN2779074Y (en) * | 2005-02-18 | 2006-05-10 | 中国电力工程顾问集团中南电力设计院 | Modified contranatant steam condensation device of direct air cooling units |
| CN202431311U (en) * | 2011-12-23 | 2012-09-12 | 临邑禹王植物蛋白有限公司 | Steam condenser |
| CN104989469A (en) * | 2015-06-11 | 2015-10-21 | 江苏永钢集团有限公司 | Stagnant water discharging device used for air exhaust pipeline of condenser |
| CN204783575U (en) * | 2015-07-15 | 2015-11-18 | 湖北中烟工业有限责任公司 | Drainage device's vacuum system is not shut down in area |
| CN105155651A (en) * | 2015-08-19 | 2015-12-16 | 清华大学深圳研究生院 | Negative pressure drainage system and drainage method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109758079A (en) | Drainage arrangement, water discharge method and dish-washing machine | |
| CN204767789U (en) | Vacuum centrifugation oil filter | |
| CN205576059U (en) | Distilling and extracting device for plant essential oil | |
| CN208793040U (en) | A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel | |
| CN110374699A (en) | Steam turbine vacuum pipe drainage arrangement and water discharge method | |
| EP3004770B1 (en) | Condensate and flash steam recovery system | |
| CN206439193U (en) | A kind of water spray lubrication single-screw air compressor Intelligent operation system of variable power | |
| CN206112493U (en) | Steam condensate water hydrophobic means | |
| CN211856548U (en) | Water quality monitoring water sampling system | |
| CN110359950A (en) | It is lower to press pumping system and its water discharge method to extraction borehole | |
| CN208330762U (en) | A kind of vacuum water diversion system of convenient assembling | |
| CN208829573U (en) | A kind of distillatory vacuum buffer device of 2,3- dichloropyridine | |
| CN209113829U (en) | A kind of natural gas collecting device with gas collection, separation and flash distillation function | |
| CN209027320U (en) | A kind of Air-Cooling Island fair current tube bank vacuum evacuation device | |
| CN209067478U (en) | A kind of water ring vacuum pump vacuum system that water source recycles | |
| CN210219726U (en) | Unpowered automatic drainage recoverer | |
| CN206339073U (en) | Air-conditioner set water side heat exchange measuring system Water Sproading drying device | |
| CN111533076A (en) | Liquid collecting system and liquid collecting method | |
| CN206735922U (en) | A kind of water recirculator slow corrosion device | |
| CN205825744U (en) | The simple retracting device of sample water of boiler | |
| CN206544924U (en) | A kind of anti-clogging oily-water seperating equipment | |
| CN216537364U (en) | Full-automatic steam-water separator suitable for vacuum environment | |
| CN208012913U (en) | A kind of water removal of flue gas sampling and draining system | |
| CN104652579B (en) | A kind of building pumping equipment | |
| CN204677396U (en) | A kind of compressor negative pressure drainage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |