CN203443393U - Condenser vacuum system provided with steam ejectors - Google Patents

Condenser vacuum system provided with steam ejectors Download PDF

Info

Publication number
CN203443393U
CN203443393U CN201320408881.1U CN201320408881U CN203443393U CN 203443393 U CN203443393 U CN 203443393U CN 201320408881 U CN201320408881 U CN 201320408881U CN 203443393 U CN203443393 U CN 203443393U
Authority
CN
China
Prior art keywords
condenser
steam
power
vacuum
jet ejector
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.)
Ceased
Application number
CN201320408881.1U
Other languages
Chinese (zh)
Inventor
程晋瑞
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.)
Cheng Jinrui
Original Assignee
SHANGHAI SHSURFER ELECTRIC POWER TECHNIQUE Co Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=50094433&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN203443393(U) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SHANGHAI SHSURFER ELECTRIC POWER TECHNIQUE Co Ltd filed Critical SHANGHAI SHSURFER ELECTRIC POWER TECHNIQUE Co Ltd
Priority to CN201320408881.1U priority Critical patent/CN203443393U/en
Application granted granted Critical
Publication of CN203443393U publication Critical patent/CN203443393U/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Landscapes

  • Jet Pumps And Other Pumps (AREA)

Abstract

The utility model discloses a condenser vacuum system provided with steam ejectors. The condenser vacuum system comprises the steam ejectors and condensers, wherein the steam ejectors and the condensers are arranged on vacuum pipes in a connecting mode. The steam ejectors can be used for controlling the condensers independently and respectively or a single steam ejector can be used for controlling all the condensers which are connected in parallel. Each steam ejector comprises a head portion cavity and an ejection pipe which are communicated. A power steam inlet and a condenser gas inlet are respectively formed in each head portion cavity, a power nozzle which is located on the same horizontal line with the corresponding ejection pipe is formed at the position of each power steam inlet, steam is used as the power medium of each steam ejector, supersonic speed jet flow is generated through the power nozzles, and vacuum states are formed in the head portion cavities so as to pump steam-gas mixtures inside the condensers. The condenser vacuum system provided with the steam ejectors is simple in structure, low in modification cost and capable of enabling the vacuum states of the condensers to be kept in a high-level state.

Description

A kind of condenser vacuum system with steam jet ejector
Technical field
The utility model relates to a kind of improvement to condenser vacuum system, is specifically related to a kind of condenser vacuum system with steam jet ejector.
Background technology
In thermal power plant, conventionally adopt water ring vacuum pump to extract incoagulable gas in condenser, to guarantee the vacuum of condenser.The working solution of water ring vacuum pump is water, and its design temperature is generally 15 ℃, if the temperature of working solution is higher than its design load, can make working solution vaporize, thereby make vavuum pump generation cavitation, cause the decrease in efficiency of vavuum pump, thereby cause the vacuum of condenser to decline, and then generating efficiency is declined.
In actual motion, because acting and water vapour release gasification latent heat can cause working solution temperature constantly to raise.Therefore, for guaranteeing the operating efficiency of water ring vacuum pump, working solution need to be undertaken by recirculated cooling water cooling conventionally, but circulating cooling coolant-temperature gage is subject to the impact in season, along with the rising of circulating cooling coolant-temperature gage, often can not be cooled to design load by the temperature of working solution summer.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, improvement cost is low, can make condenser vacuum maintain all the time the high-caliber condenser vacuum system with steam jet ejector.
A condenser vacuum system with steam jet ejector, comprises connecting being arranged on steam jet ejector and the condenser on vacuum line, described steam jet ejector is controlled separately single condenser, or is controlling the condenser that several are in parallel; Described steam jet ejector comprises head chamber and the injection pipe communicating, in described head chamber, offer respectively power steam inlet port and condenser gas inlet port, described power steam inlet port place is provided with injection pipe and is positioned at the power jet on same level line, described steam jet ejector be take steam as dynamic medium, by power jet, produce supersonic jet, in head chamber, cause vacuum, extract the vapour gas mixture in condenser.
Further improvement as technique scheme:
The port of export of described condenser is connected on water ring vacuum pump, is connected with steam-water separator, working solution heat exchanger with its formation vacuum system on the export pipeline of water ring vacuum pump.
Further improvement as technique scheme:
Power steam after condenser is processed, the water vapour in condenser pumped gas are recovered to hot well or condenser after being condensed into water.
Further improvement as technique scheme:
Be separately installed with pneumatic control valve with the power steam inlet port on steam jet ejector, the condenser pipeline that condenser gas inlet port joins, the entrance point place of power steam pipeline, at condenser pipeline, lead on the rear pipeline of condenser gas inlet port branch road bypass Pneumatic butterfly valve is installed.
Further improvement as technique scheme:
The cooling water that described condenser adopts is condensate water.
Further improvement as technique scheme:
The described condenser vacuum system with steam jet ejector adopts the DCS system of access power plant central station of floating dock or controls on the spot.
The beneficial effects of the utility model are embodied in:
1, high reliability.
What compared to current power plant, adopt take the pumped vacuum systems that vavuum pump is main body, and condenser vapor injection vacuum pumping system is the most reliable pumped vacuum systems at present, for work condition environment and vacuum tightness, all insensitive, has very strong adaptability; We carry out system one to one for user's field working conditions, and supporting control system and auxiliary equipment, custom-made by size, and entire system is made performance, and stability is reliable. 
2, high vacuum.
This system, we can make condenser all the time in best back pressure state at design, and this is not subject to the impact of vavuum pump, thus reach the operation of unit energy saving economy;
3, condensate liquid reclaims.
The condensate liquid of power steam and suction steam will turn back to turbine condenser by sealed circuit or steam trap, valuable condensate liquid can not run off.
4, energy reclaims.
The power steam that condenser vapor injection vacuum pumping system is at different levels and the suction steam aspirating from steam turbine condenser condense the surface condenser of ejector system.The heat recovery of condensation is to being used as in the steam turbine condensate liquid of cooling water, and such heat exchange has completed the first order preheating that steam turbine condensate liquid is back to the fluid of steam boiler.
5, without fouling.
At pipe side inter-stage surface condenser by the condensate liquid of turbine condenser as refrigerant, at the free steam of shell-side and on-condensible gas.Water, steam and gaseous fluid are all clean, so the pipe side of surface condenser and shell-side non flouling behaviour all, so the performance of condenser vapor injection vacuum pumping system can not lower efficiency due to operation for a long time, can keep 100% exert oneself always.
6, freedom from repairs.
Condenser vapor injection vacuum pumping system is motion or rotatable parts not.Therefore do not have mechanical wear and other mechanical problems to produce.Once you begin work, you may will " forget " existence of injector; In American-European power plant, be referred to as: " system passing into silence ".
7, simple to operate:
Starting and closing only needs valve operation, and DCS system can be controlled or be linked into control system on the spot.
8, system is simple:
Condenser vapor injection vacuum pumping system, in repowering, does not need to change vavuum pump group, only need be on condenser be bled female pipe this system in parallel.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of steam jet ejector in the utility model.
Fig. 3 is the structural representation of embodiment 3 in the utility model.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described further.Should be understood that following examples are only for the utility model is described but not for limiting scope of the present utility model.
Referring to Fig. 1, a kind of condenser vacuum system with steam jet ejector that the utility model provides, comprise the condenser pipeline 1 joining with condenser (not shown), described condenser pipeline 1 is connected in vacuum system of the prior art, in the present embodiment, described vacuum system is consisted of water ring vacuum pump 2, steam-water separator 3 and working solution heat exchanger 4, and condenser pipeline 1 is connected to the entrance point place of water ring vacuum pump 2.
In the specific implementation, form the equipment of vacuum system in prior art, can make corresponding adjustment according to actual service condition.
In order to solve the problem existing at the described current known technology of this description background technology part and to overcome its defect,
Make condenser vacuum maintain all the time high level, the technical scheme that the utility model is taked is: as shown in Figure 1, the described condenser vacuum system with steam jet ejector also comprises steam jet ejector 5, referring to Fig. 2, described steam jet ejector 5 comprises head chamber 5a and the injection pipe 5b communicating, on described head chamber 5a, offer respectively power steam inlet port 5a-1 and condenser gas inlet port 5a-2, described power steam inlet port 5a-1 place is provided with injection pipe 5b and is positioned at the power jet 5a-3 on same level line, described power steam inlet port 5a-1 and condenser gas inlet port 5a-2 are connected on condenser pipeline 1 and power steam pipeline 6, after steam jet ejector 5 fully mixes the pumped gas of condenser with power steam, from injection pipe 5b, enter condenser 7, steam jet ejector 5 be take steam as dynamic medium, by injector power jet, produce supersonic jet, in head chamber 5a, cause vacuum, extract the vapour gas mixture in condenser 7, water vapour in power steam and condenser pumped gas is condensed into water, be recovered to hot well or condenser, the vacuum system that incondensable gas in system enters water ring vacuum pump 1 and water ring vacuum pump 1 place by condenser pipeline 4 is again carried out application of vacuum.
The utility model is in order further to improve its serviceability, and structure of the present utility model in the specific implementation, can also, on above-described technical scheme basis, adopt the following examples:
Embodiment 1
The difference of the present embodiment and embodiment 1 is: the entrance point place of described condenser pipeline 1 and power steam pipeline 6 is separately installed with pneumatic control valve 8, at condenser pipeline 1, lead on the rear pipeline of condenser gas inlet port 5a-2 branch road bypass Pneumatic butterfly valve 9 is installed, when not needing to carry out work by this system, the Pneumatic butterfly valve 8 on condenser pipeline 1 only need to be opened in control room, close the pneumatic control valve 8 on power steam pipeline 6, open bypass Pneumatic butterfly valve 9 simultaneously, native system quits work, steam jet ejector 5 and condenser 7 will quit work, vacuum system is by the work system of enabling before not repacking.
Embodiment 2
Condenser 7 outlet pressures are designed to 10 ~ 12kPa, under this pressure, the vapourizing temperature of water ring vacuum pump 1 interior working solution is 49.5 ° of C left and right, can thoroughly solve the safety issues such as vavuum pump cavitation and rotor rupture, do not increase again vavuum pump load, thereby guaranteed the efficiency of vavuum pump, made condenser vacuum maintain high level.
Embodiment 3
Referring to Fig. 3, when being, vacuum system of the prior art is arranged in parallel, and when adapting to fairly large operating mode, steam jet ejector 5 also can adopt parallel way, and each steam jet ejector 5 is being controlled respectively the condenser 7 communicating with its quantity.
Embodiment 4
Described steam jet ejector 5 also can adopt the design of simultaneously controlling these some condenser branch lines, now needs to adopt the steam jet ejector of relatively high power, and single steam jet ejector 5 is being controlled several condensers being in parallel 7.
Embodiment 5
The cooling water of described condenser 7, the situation different according to power plant, can adopt enclosed water, opened water, industry water or condensate water.Suggestion adopts condensate water as cooling water, can reclaim the bleed heat of middle steam of power steam and condenser, makes whole system more energy-conservation.
Embodiment 6
Control system of the present utility model, can adopt the DCS system of access power plant central station of floating dock or directly adopt on the spot and control.This system and vacuum system of the prior art are installed in parallel, can be in needs, and drop into easily and off-the-line, and do not affect the safe operation of unit.

Claims (2)

1. a condenser vacuum system with steam jet ejector, is characterized in that: comprise connecting being arranged on steam jet ejector and the condenser on vacuum line, described steam jet ejector is controlled separately single condenser, or is controlling the condenser that several are in parallel; Described steam jet ejector comprises head chamber and the injection pipe communicating, in described head chamber, offer respectively power steam inlet port and condenser gas inlet port, described power steam inlet port place is provided with injection pipe and is positioned at the power jet on same level line, described steam jet ejector be take steam as dynamic medium, by power jet, produce supersonic jet, in head chamber, cause vacuum, extract the vapour gas mixture in condenser.
2. the condenser vacuum system with steam jet ejector according to claim 1, it is characterized in that: the port of export of described condenser is connected on water ring vacuum pump, on the export pipeline of water ring vacuum pump, be connected with steam-water separator, working solution heat exchanger with its formation vacuum system.
3. the condenser vacuum system with steam jet ejector according to claim 1 and 2, it is characterized in that: be separately installed with pneumatic control valve with the power steam inlet port on steam jet ejector, the condenser pipeline that condenser gas inlet port joins, the entrance point place of power steam pipeline, at condenser pipeline, lead on the rear pipeline of condenser gas inlet port branch road bypass Pneumatic butterfly valve is installed.
CN201320408881.1U 2013-07-10 2013-07-10 Condenser vacuum system provided with steam ejectors Ceased CN203443393U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320408881.1U CN203443393U (en) 2013-07-10 2013-07-10 Condenser vacuum system provided with steam ejectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320408881.1U CN203443393U (en) 2013-07-10 2013-07-10 Condenser vacuum system provided with steam ejectors

Publications (1)

Publication Number Publication Date
CN203443393U true CN203443393U (en) 2014-02-19

Family

ID=50094433

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320408881.1U Ceased CN203443393U (en) 2013-07-10 2013-07-10 Condenser vacuum system provided with steam ejectors

Country Status (1)

Country Link
CN (1) CN203443393U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940256A (en) * 2014-04-11 2014-07-23 张曙光 Power plant condenser steam jet and vacuumizing system with pressure control function
CN104832463A (en) * 2015-01-14 2015-08-12 上海核工程研究设计院 Ejector system for vacuumizing pressurized water reactor cooling agent system
CN104832462A (en) * 2015-01-14 2015-08-12 上海核工程研究设计院 Ejector system for vacuum-pumping of reactor coolant system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940256A (en) * 2014-04-11 2014-07-23 张曙光 Power plant condenser steam jet and vacuumizing system with pressure control function
CN103940256B (en) * 2014-04-11 2016-04-20 张曙光 With pressure controlled plant condenser vapor injection vacuum pumping system
CN104832463A (en) * 2015-01-14 2015-08-12 上海核工程研究设计院 Ejector system for vacuumizing pressurized water reactor cooling agent system
CN104832462A (en) * 2015-01-14 2015-08-12 上海核工程研究设计院 Ejector system for vacuum-pumping of reactor coolant system

Similar Documents

Publication Publication Date Title
CN103334969A (en) Condenser steam injection vacuum system
CN105697075A (en) Extraction condensing heat supply system additionally provided with non-reheat medium-pressure steam turbine
CN201560812U (en) Cogeneration low temperature thermal energy recovery device
CN205690909U (en) A kind of water chiller heat pump backheat vacuum energy-saving system
CN101696643A (en) Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof
CN203443393U (en) Condenser vacuum system provided with steam ejectors
CN104819054A (en) Distributed energy resource waste heat utilization system
CN206037003U (en) Secondary reheating unit EC BEST steam turbine steam exhaust heating deoxidization boiler feed water's thermodynamic system
CN203719452U (en) Improved steam condenser vacuum system
CN204064016U (en) A kind of condenser steam injection vacuum system energy-saving for new power plant construction
CN203772051U (en) Multistage steam ejector vacuum-pumping system of double backpressure condensers
CN206617195U (en) A kind of large-scale pair of back pressure birotor interchangeable Steam Turbine
CN204064015U (en) A kind of condenser steam injection vacuum system for energy conservation transformation of power plants type
CN204704010U (en) A kind of bootstrap system of distributed energy
CN107560451B (en) Energy-saving vacuum device
CN110645809A (en) Vacuumizing system for ultralow back pressure operation of direct air cooling unit
CN203432387U (en) Novel condenser vacuum system
CN207108543U (en) The deaerating type of cycles of boiler feedwater
CN203443392U (en) Condenser system with deoxygenation function
CN215369964U (en) Seawater desalination concurrent heating system
CN216111019U (en) Novel combustion engine TCA cooling system
CN205172659U (en) Synthesize refrigerated double reheat unit thermodynamic system
CN209326399U (en) Condense island system
CN110541736B (en) Boiler feed water heating system of steam turbine set running in parallel
CN209431389U (en) A kind of waste incineration and generating electricity heat energy recycling system of air compressor

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHENG JINRUI

Free format text: FORMER OWNER: SHANGHAI SHSURFER ELECTRIC POWER TECHNOLOGY CO., LTD.

Effective date: 20140303

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 201802 JIADING, SHANGHAI TO: 232000 HUAINAN, ANHUI PROVINCE

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20140303

Address after: Anhui province Huainan city 232000 National Road, tianjia'an District Village striker 22-1-8 room

Patentee after: Cheng Jinrui

Address before: 201802, No. 4268, No. 2396 South Main Road, Shanghai, Jiading District. A

Patentee before: Shanghai Shsurfer Electric Power Technique Co. , Ltd.

IW01 Full invalidation of patent right
IW01 Full invalidation of patent right

Decision date of declaring invalidation: 20161220

Decision number of declaring invalidation: 30840

Granted publication date: 20140219