CN107643001A - A kind of vacuum pump set for thermal power plant configures system - Google Patents
A kind of vacuum pump set for thermal power plant configures system Download PDFInfo
- Publication number
- CN107643001A CN107643001A CN201610569197.XA CN201610569197A CN107643001A CN 107643001 A CN107643001 A CN 107643001A CN 201610569197 A CN201610569197 A CN 201610569197A CN 107643001 A CN107643001 A CN 107643001A
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- China
- Prior art keywords
- vacuum pump
- pump group
- ring vacuum
- power plant
- liquid ring
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- 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.)
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- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a kind of vacuum pump set for thermal power plant to configure system, a liquid ring vacuum pump group is configured including every unit condenser, Roots's Water-ring vacuum pump group is matched again outside the liquid ring vacuum pump group, wherein liquid ring vacuum pump group is used for unit and establishes the standby of vacuum and normal operation, Roots's Water-ring vacuum pump group maintains vacuum in unit normal operation, it is of the invention to can save energy 70%~80% compared with traditional Pendular ring type pumped vacuum systems, reduce by a liquid ring vacuum pump group compared with indivedual technological transformation power plant, investment reduction simultaneously simplifies system.
Description
Technical field
The present invention relates to a kind of vacuum pump set for thermal power plant to configure system.
Background technology
In power plant, vacuum has a great influence to gross coal consumption rate.
By taking 300-350MW units as an example, if vacuum often improves 1Kpa, corresponding gross coal consumption rate declines 2.6g/kWh.
The conventional vaccum-pumping equipment of generation current factory is water-jet pump and water ring pump, and the former is gradually substituted by the latter, tradition
Pendular ring type pumped vacuum systems, high energy consumption, vacuum are obvious by environment temperature rise decay.The performance of water ring vacuum pump is with aspirating gas
The state of body（Pressure, temperature）It is relevant with the temperature of working solution etc..Influenceed, held by " limit swabbing pressure " run simultaneously in
Local gas hammer phenomenon easily occurs in impeller surface, operation noise is very big and blade can be made to produce very big tension, transports for a long time
Row is easily caused the fracture of blade, threatens the safe operation of unit.
A kind of thermal power plant condenser vacuum of Application No. 2012200640292 maintains system, in addition to：Vacuum is tieed up
System is held, the vacuum maintains system to include：Air inlet pipeline, air inlet hand-operated valve, vavuum pump, outlet pipe；The air inlet pipeline,
Air inlet hand-operated valve, vavuum pump, outlet pipe are sequentially connected；Air inlet pipeline inlet end connection condenser outlet side, it is described go out
Air pipe outlet side connection pumped vacuum systems component outlet side.Present system mainly has efficient vacuum pump and related pipe valve structure
Into it reaches the purpose of energy-conservation with conventional vacuum pumping pump system parallel connection.
Fig. 1 configures for the pumped vacuum systems of 350MW coal units condenser 1, passes through the first liquid ring vacuum pump group 21 and second
Liquid ring vacuum pump group 22 supplies condenser 1 and worked.Two liquid-ring vacuum pumps 21/22 while thrown to establish vacuum as early as possible, when opening machine
Enter the configurations and deposit to occur phenomena such as wasting the energy in operation.
" Roots's Water-ring vacuum pump group " nearly 2 years individual power plants have carried out technological transformation at home, as shown in Fig. 2 generally doing
Method is by the first liquid ring vacuum pump group 21 and the second liquid ring vacuum pump group 22, is further added by Roots's Water-ring vacuum pump group 3 and supplies
Worked to condenser 1.Liquid ring vacuum pump group is used for standby, Roots's Water-ring vacuum pump group 3 that unit establishes vacuum and normal operation
Vacuum is maintained in 1 normal operation of condenser, so using there have been the phenomenon for mismatching waste.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of vacuum pump set for thermal power plant to match somebody with somebody
Put system.
The technical scheme that present invention solves for this is that a kind of vacuum pump set for thermal power plant configures system, including every
Platform condenser configures a liquid ring vacuum pump group, it is characterised in that：Roots's water ring is matched again outside the liquid ring vacuum pump group
Vacuum pump group, wherein liquid ring vacuum pump group are used for unit and establish the standby of vacuum and normal operation, and Roots's Water-ring vacuum pump group exists
Vacuum is maintained during unit normal operation.
Beneficial effect：
It is of the invention to can save energy 70%~80% compared with traditional Pendular ring type pumped vacuum systems, reduced compared with indivedual technological transformation power plant
One liquid ring vacuum pump group, investment reduction simultaneously simplify system.
Brief description of the drawings
Fig. 1 is 350MW coal unit evacuation system for steam condenser conventional arrangements.
Fig. 2 is to be configured after 350MW coal units evacuation system for steam condenser is transformed.
Fig. 3 is 350MW coal unit evacuation system for steam condenser new arrangements.
1 is condenser in figure, and 2 be liquid ring vacuum pump group, and 21 be the first liquid ring vacuum pump group, and 22 be the second liquid-ring vacuum pump
Group, 3 be Roots's Water-ring vacuum pump group.
Embodiment
It is of the invention as shown in Figure 3.
A kind of vacuum pump set for thermal power plant configures system, including every condenser 1 configures a liquid ring vacuum pump group
2, the liquid ring vacuum pump group 2 matches Roots's Water-ring vacuum pump group 3 again outside, and wherein liquid ring vacuum pump group 2 is set up for machine
Vertical vacuum and normal operation it is standby, Roots's Water-ring vacuum pump group 3 maintains vacuum in unit normal operation.
Vavuum pump of the present invention configuration configures relative to reworked, reduces a liquid-ring vacuum pump, liquid-ring vacuum pump 2 be
Unit is opened when machine establishes vacuum and come into operation, and is only done during normal operation standby.
Therefore the configuration of the present invention, consider to have opened the requirement of time in the type selecting of liquid ring vacuum pump group 2, one can be amplified
Level.
Claims (1)
1. a kind of vacuum pump set for thermal power plant configures system, including every unit condenser configures a liquid ring vacuum
Pump group, it is characterised in that：Roots's Water-ring vacuum pump group, wherein liquid ring vacuum pump group are matched again outside the liquid ring vacuum pump group
The standby of vacuum and normal operation is established for unit, Roots's Water-ring vacuum pump group maintains vacuum in unit normal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569197.XA CN107643001A (en) | 2016-07-20 | 2016-07-20 | A kind of vacuum pump set for thermal power plant configures system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569197.XA CN107643001A (en) | 2016-07-20 | 2016-07-20 | A kind of vacuum pump set for thermal power plant configures system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107643001A true CN107643001A (en) | 2018-01-30 |
Family
ID=61108444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610569197.XA Pending CN107643001A (en) | 2016-07-20 | 2016-07-20 | A kind of vacuum pump set for thermal power plant configures system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107643001A (en) |
-
2016
- 2016-07-20 CN CN201610569197.XA patent/CN107643001A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180130 |
|
| WD01 | Invention patent application deemed withdrawn after publication |