CN205403530U - Condenser vacuum stabilising arrangement of thermal power plant - Google Patents

Condenser vacuum stabilising arrangement of thermal power plant Download PDF

Info

Publication number
CN205403530U
CN205403530U CN201620155063.9U CN201620155063U CN205403530U CN 205403530 U CN205403530 U CN 205403530U CN 201620155063 U CN201620155063 U CN 201620155063U CN 205403530 U CN205403530 U CN 205403530U
Authority
CN
China
Prior art keywords
condenser
water
vacuum pump
vacuum
heat exchanger
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
Application number
CN201620155063.9U
Other languages
Chinese (zh)
Inventor
谢鹏辉
张志文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Nine Feng Electric Science And Technology Ltd Co
Original Assignee
Hunan Nine Feng Electric Science And Technology Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Nine Feng Electric Science And Technology Ltd Co filed Critical Hunan Nine Feng Electric Science And Technology Ltd Co
Priority to CN201620155063.9U priority Critical patent/CN205403530U/en
Application granted granted Critical
Publication of CN205403530U publication Critical patent/CN205403530U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model belongs to condenser vacuum device field especially relates to a condenser vacuum stabilising arrangement of thermal power plant. Its characterized in that, the device includes: the condenser is connected through pipeline of bleeding (1) and check valve (2), check valve (2), quick -break valve (3), roots's fan (4), liquid -ring type vacuum pump (5), catch water (7) and give vent to anger pipeline (8) connect gradually, roots's fan (4) and liquid -ring type vacuum pump (5) are connected with heat exchanger (6) respectively, and heat exchanger (6) are connected with catch water (7) and condenser tube way (9) respectively. The utility model discloses an utilizing in with the condenser incoagulable deflation of miniwatt, efficient air extraction equipment, replacing big vacuum pump continuous operation in the former system, avoid the phenomenon of " big horse dolly ", practiced thrift the energy widely for system's operation, reduced the vacuum pump cavitation and damaged, generator operation's economic nature is improved in the vacuum of having improved the high temperature season condenser.

Description

Thermal power plant's condenser vacuum stabilising arrangement
Technical field
This utility model belongs to condenser vacuum device field, particularly relates to a kind of thermal power plant condenser vacuum stabilising arrangement.
Background technology
The foundation of condenser vacuum: unit starting initial stage, condenser vacuum depends on air ejector equipment and is extracted out by the air in condenser, and the speed now setting up vacuum is determined by the capacity of air ejector equipment and the tightness of vacuum system;When unit is properly functioning, turbine discharge enters in condenser, and steam is cooled the cooling of water and condenses into water, steam condensation Cheng Shuihou, and its volume greatly reduces and forms high vacuum.
The effect of air ejector equipment: when unit starting, set up condenser vacuum;When unit is properly functioning, stablize condenser vacuum.During unit starting, air is full of whole condenser, for saving the startup time, it is necessary to powerful air ejector equipment sets up vacuum in the short period of time;When unit is properly functioning, in steam, incondensable gas is little, only needs the air ejector equipment of smaller power that the extraction of incondensable gas can be stablized the vacuum of condenser.
Existing each thermal power plant stablizes the air ejector equipment of vacuum when setting up vacuum when unit starting and be properly functioning be adopt same set of equipment water-ring vacuum pump.When this mode there is problems in that 1, unit is properly functioning there is the phenomenon of " low load with strong power " in air ejector equipment, wastes the energy;2, time properly functioning, vacuum pump inlet pressure is low, and is vapour (gassiness), water two phase flow, and extract system vibration, noise are big, particularly vacuum pump serious cavitation erosion;3, high temperature season, when vacuum pump coolant temperature raises, the effect of vacuum pump evacuation substantially reduces, and condenser vacuum declines, and affects the economy of generating set, more exacerbates the cavitation phenomenons of vacuum pump simultaneously.
Utility model content
In order to solve the problems referred to above, the utility model proposes a kind of thermal power plant condenser vacuum stabilising arrangement, it is characterized in that, this device includes: condenser is connected with non-return valve 2 by exhaust pipe 1, and non-return valve 2, quick-break valve 3, roots blower 4, liquid-ring vacuum pump 5, steam-water separator 7 and outlet pipe 8 are sequentially connected with;Roots blower 4 and liquid-ring vacuum pump 5 are connected with heat exchanger 6 respectively, and heat exchanger 6 is connected with steam-water separator 7 and cooling water pipeline 9 respectively;
Described exhaust pipe 1 is for extracting out incondensable gas in condenser and water vapor mixture from condenser throat, the mixture extracted out extracts incondensable gas further out by liquid-ring vacuum pump 5 after roots blower 4 compresses, water vapour condenses into water further, water, gas mixture enter steam-water separator 7, water flows into water tank, and incondensable gas passes through outlet pipe 8 discharged to air;
Described non-return valve 2 and quick-break valve 3 are for the fast shut-off loop when vacuum stabilising arrangement fault is stopped transport, it is to avoid Air Reverse flows into condenser;
Described heat exchanger 6 is for the heat of the liquid-ring vacuum pump working solution that swaps out, it is ensured that vacuum pump accidental conditions;
Described steam-water separator 7 is for steam-water separation, condensate-water polishing, air removal unit;
Described outlet pipe 8 is for guaranteeing through the incondensable gas point discharge that vacuum equipment is discharged;
Described cooling water pipeline 9 is for taking away the heat that heat exchanger swaps out.
Beneficial effect
This utility model, by utilizing small-power, high efficiency air-extractor to be extracted out by incoagulable gas in condenser, replaces big vacuum pump in original system to run continuously, it is to avoid the phenomenon of " low load with strong power ", runs for system and be saved greatly the energy;Big vacuum pump runs under high vacuum without long-term, decreases vacuum pump cavitation and damages;Improve the vacuum of high temperature season condenser, improve the economy that generating set runs.
Accompanying drawing explanation
Fig. 1 is the thermal power plant's condenser vacuum stabilising arrangement that the utility model proposes.
1-exhaust pipe, 2-non-return valve, 3-quick-break valve, 4-roots blower, 5-liquid-ring vacuum pump, 6-heat exchanger, 7-steam-water separator, 8-outlet pipe, 9-cooling water pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is elaborated.Fig. 1 is a kind of thermal power plant condenser vacuum stabilising arrangement that the utility model proposes.This device includes: condenser is connected with non-return valve 2 by exhaust pipe 1, and non-return valve 2, quick-break valve 3, roots blower 4, liquid-ring vacuum pump 5, steam-water separator 7 and outlet pipe 8 are sequentially connected with;Roots blower 4 and liquid-ring vacuum pump 5 are connected with heat exchanger 6 respectively, and heat exchanger 6 is connected with steam-water separator 7 and cooling water pipeline 9 respectively;
Described exhaust pipe 1 is for extracting out incondensable gas in condenser and water vapor mixture from condenser throat, the mixture extracted out extracts incondensable gas further out by liquid-ring vacuum pump 5 after roots blower 4 compresses, water vapour condenses into water further, water, gas mixture enter steam-water separator 7, water flows into water tank, and incondensable gas passes through outlet pipe 8 discharged to air;
Described non-return valve 2 and quick-break valve 3, for the fast shut-off loop when vacuum stabilising arrangement fault is stopped transport, it is to avoid Air Reverse flows into condenser;
Described heat exchanger 6, for the heat of the liquid-ring vacuum pump working solution that swaps out, it is ensured that vacuum pump accidental conditions;In liquid-ring vacuum pump working solution run continuously after heat accumulation, temperature is stepped up, working solution temperature raise after vacuum pump exhaust capacity can be substantially reduced, for reduce working solution temperature guarantee vacuum stabilising arrangement Effec-tive Function, device has needed supporting heat transmission equipment.
Described steam-water separator 7, for steam-water separation, condensate-water polishing, air removal unit;From vacuum system extract out air-water mixture contain a large amount of water vapour and water, for saving water resource and protection environment, by moisture trap by condensate-water polishing to separator sump.
Described outlet pipe 8 is for guaranteeing through the incondensable gas point discharge that vacuum equipment is discharged.
Described cooling water pipeline 9, for taking away the heat that heat exchanger swaps out.
The running of this device is as follows:
1, utilize roots blower by the vapour extracted out from condenser, gas mixture compression, be greatly reduced the volume of mixture, and improve pressure;
2, the mixture after compression is extracted out by liquid-ring vacuum pump, and the power sum of roots blower and vacuum pump, much smaller than former vacuum pump group, plays good energy-saving effect;Vacuum pump inlet pressure raises simultaneously, effectively alleviates the cavitation phenomenons of vacuum pump;
3, the mixture that described vacuum stabilizing equipment is extracted out, after steam-water separator, condensate-water polishing utilizes, outside incondensable gas discharge system;
4, the working solution of liquid-ring vacuum pump temperature after heat exchanger heat exchange reduces, and effectively ensures operating condition and the operational efficiency of vacuum pump, is unlikely to reduce to bleed because working solution temperature is too high to exert oneself.

Claims (1)

1. thermal power plant's condenser vacuum stabilising arrangement, it is characterized in that, this device includes: condenser is connected with non-return valve (2) by exhaust pipe (1), and non-return valve (2), quick-break valve (3), roots blower (4), liquid-ring vacuum pump (5), steam-water separator (7) and outlet pipe (8) are sequentially connected with;Roots blower (4) and liquid-ring vacuum pump (5) are connected with heat exchanger (6) respectively, and heat exchanger (6) is connected with steam-water separator (7) and cooling water pipeline (9) respectively;
Described exhaust pipe (1) is for extracting out incondensable gas in condenser and water vapor mixture from condenser throat, the mixture extracted out extracts incondensable gas further out by liquid-ring vacuum pump (5) after roots blower (4) compresses, water vapour condenses into water further, water, gas mixture enter steam-water separator (7), water flows into water tank, and incondensable gas passes through outlet pipe (8) discharged to air;
Described non-return valve (2) and quick-break valve (3) are for the fast shut-off loop when vacuum stabilising arrangement fault is stopped transport, it is to avoid Air Reverse flows into condenser;
Described heat exchanger (6) is for the heat of the liquid-ring vacuum pump working solution that swaps out, it is ensured that vacuum pump accidental conditions;
Described steam-water separator (7) is for steam-water separation, condensate-water polishing, air removal unit;
Described outlet pipe (8) is for guaranteeing through the incondensable gas point discharge that vacuum equipment is discharged;
Described cooling water pipeline (9) is for taking away the heat that heat exchanger swaps out.
CN201620155063.9U 2016-03-01 2016-03-01 Condenser vacuum stabilising arrangement of thermal power plant Expired - Fee Related CN205403530U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620155063.9U CN205403530U (en) 2016-03-01 2016-03-01 Condenser vacuum stabilising arrangement of thermal power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620155063.9U CN205403530U (en) 2016-03-01 2016-03-01 Condenser vacuum stabilising arrangement of thermal power plant

Publications (1)

Publication Number Publication Date
CN205403530U true CN205403530U (en) 2016-07-27

Family

ID=56948232

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620155063.9U Expired - Fee Related CN205403530U (en) 2016-03-01 2016-03-01 Condenser vacuum stabilising arrangement of thermal power plant

Country Status (1)

Country Link
CN (1) CN205403530U (en)

Similar Documents

Publication Publication Date Title
WO2018010536A1 (en) Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor
CN103047876B (en) Maintain the devices and methods therefor of thermal power plant condenser vacuum
CN205690909U (en) A kind of water chiller heat pump backheat vacuum energy-saving system
CN110715561A (en) Water ring vacuum pump system based on front condensation type steam-gas separation device
CN203177688U (en) Efficient water ring vacuum pump system for condensing steam turbine unit
CN204806915U (en) Improve generating set condenser vacuum degree's vacuum pumping system
CN206617195U (en) A kind of large-scale pair of back pressure birotor interchangeable Steam Turbine
CN205403530U (en) Condenser vacuum stabilising arrangement of thermal power plant
CN205580236U (en) Energy -conserving improvement system in steam turbine condenser vacuum
CN209326399U (en) Condense island system
CN210741153U (en) Energy-saving device for auxiliary condenser of air cooling island
CN109798692B (en) Air cooling and wet cooling unit hybrid operation system
CN211651275U (en) Leading condensing type vapour-gas separation equipment suitable for plane disc type water ring vacuum pump
CN204535450U (en) Condenser vacuum extractor
CN206256941U (en) A kind of condensing turbine organic working medium circulating cooling system
CN202692739U (en) Air-exhaust water-discharge structure of water film evaporation condenser
CN205101237U (en) Steam turbine vacuum pumping system
CN205225349U (en) Condensing system of condensing formula screw rod expander
CN204730692U (en) Condenser vacuum extractor
CN210105932U (en) High-efficient vacuum pumping system of turbo generator set
CN212133342U (en) Air-wet series cooling system suitable for air cooling unit
CN205172652U (en) Turbo generator set unites cooling system
CN214276562U (en) Vacuum system of power plant
CN205049002U (en) High -efficient vacuum economizer system of condenser
CN204552852U (en) A kind of motor

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160727

Termination date: 20170301