CN108224402A - Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant - Google Patents

Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant Download PDF

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Publication number
CN108224402A
CN108224402A CN201810183148.1A CN201810183148A CN108224402A CN 108224402 A CN108224402 A CN 108224402A CN 201810183148 A CN201810183148 A CN 201810183148A CN 108224402 A CN108224402 A CN 108224402A
Authority
CN
China
Prior art keywords
steam
exhaust
outlet
nozzle
negative pressure
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
Application number
CN201810183148.1A
Other languages
Chinese (zh)
Inventor
武宝会
成新兴
李刚
殷结峰
贾晓静
齐全
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.)
Xian Xire Boiler Environmental Protection Engineering Co Ltd
Original Assignee
Xian Xire Boiler Environmental Protection Engineering 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
Application filed by Xian Xire Boiler Environmental Protection Engineering Co Ltd filed Critical Xian Xire Boiler Environmental Protection Engineering Co Ltd
Priority to CN201810183148.1A priority Critical patent/CN108224402A/en
Publication of CN108224402A publication Critical patent/CN108224402A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/50Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers for draining or expelling water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/28Feed-water heaters, i.e. economisers or like preheaters for direct heat transfer, e.g. by mixing water and steam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28CHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00Other direct-contact heat-exchange apparatus
    • F28C3/06Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
    • F28C3/08Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The invention discloses a kind of thermal power plants to arrange exhaust steam residual heat retracting device surely, including exhaust steam pipeline, steam exhaust connecting pipe, negative pressure cavity, nozzle, cooling water pipeline, venturi steam heater and mixing tank, the outlet of exhaust steam pipeline is connected with one end of steam exhaust connecting pipe, the other end of steam exhaust connecting pipe is connected with the entrance of negative pressure cavity, nozzle is located in negative pressure cavity, the outlet of cooling water pipeline is connected after being inserted in negative pressure cavity with the entrance of nozzle, the entrance of the outlet face venturi steam heater of nozzle, the outlet of negative pressure cavity is connected with the entrance of venturi steam heater, the outlet of venturi steam heater is connected with the entrance of mixing tank, the device can realize the recycling of steam exhaust heat, eliminate the visual pollution that discharge of steam generates.

Description

Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant
Technical field
The invention belongs to energy saving for power plants emission reduction fields, are related to a kind of thermal power plant and arrange exhaust steam residual heat retracting device surely.
Background technology
With the implementation of national energy-saving and environmental protection policy, the discharge that steam exhaust is arranged surely by thermal power plant gradually attracts attention, at present fire Power plant arranges most of steam exhaust idle discharge is put surely, and the energy is caused to waste.According to primary Calculation, 600MW unit determines row's steam exhaust The heat taken away is up to 3MW~5MW.In addition, the white water vapour for determining row's steam exhaust generation of direct emission causes vision to environment Pollution, while recycling is carried out with good economy and environmental benefit to determining row's steam exhaust, however do not occur phase in the prior art The disclosure answered.
Invention content
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art, provides a kind of thermal power plant and arranges exhaust steam residual heat time surely Receiving apparatus, the device can realize the recycling of steam exhaust heat, eliminate the visual pollution that discharge of steam generates.
In order to achieve the above objectives, thermal power plant of the present invention arranges exhaust steam residual heat retracting device and includes exhaust steam pipeline, weary surely Vapour connecting pipe, negative pressure cavity, nozzle, cooling water pipeline, venturi steam heater and mixing tank, the outlet of exhaust steam pipeline with One end of steam exhaust connecting pipe is connected, and the other end of steam exhaust connecting pipe is connected with the entrance of negative pressure cavity, and nozzle is located at negative Intracavitary is pressed, the outlet of cooling water pipeline is inserted in negative pressure cavity to be connected afterwards with the entrance of nozzle, the outlet face text mound of nozzle In steam heater entrance, the outlet of negative pressure cavity is connected with the entrance of venturi steam heater, venturi steam-water mixing The outlet of device is connected with the entrance of mixing tank.
Exhaust steam pipeline is communicated with water seal arrangement and emergent exhaust outlet.
Outlet conduit is further included, the outlet of mixing tank is connected with one end of outlet conduit, the other end of outlet conduit It is connected with extraneous oxygen-eliminating device.
Regulating valve is provided on cooling water pipeline.
The nozzle is high speed nozzle.
The invention has the advantages that:
Exhaust steam residual heat retracting device is arranged in concrete operations surely by thermal power plant of the present invention, and cooling water is ejected into through nozzle In venturi steam heater, make to form negative pressure in negative pressure cavity, so as to which the steam exhaust in exhaust steam pipeline be made to inhale through steam exhaust connecting pipe Enter into venturi steam heater, then heat exchanges heat to cooling water through venturi steam heater, the cooling after heating Water is entered in mixing tank, realizes the purpose of steam exhaust heat recovery, while eliminates the visual pollution of discharge of steam generation, structure Simply, easy to operate, practicability is extremely strong.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 it is outlet conduit, 2 be cooling water pipeline, 3 be regulating valve, 4 be nozzle, 5 be mixing tank, 6 is steam exhaust Pipeline, 7 be steam exhaust connecting pipe, 8 be negative pressure cavity, 9 be venturi steam heater, 10 be water seal arrangement, 11 be emergent exhaust Mouthful.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
With reference to figure 1, thermal power plant of the present invention arranges exhaust steam residual heat retracting device and includes exhaust steam pipeline 6, steam exhaust connection surely Pipeline 7, negative pressure cavity 8, nozzle 4, cooling water pipeline 2, venturi steam heater 9 and mixing tank 5, the outlet of exhaust steam pipeline 6 It is connected with one end of steam exhaust connecting pipe 7, the other end of steam exhaust connecting pipe 7 is connected with the entrance of negative pressure cavity 8, nozzle 4 In negative pressure cavity 8, the outlet of cooling water pipeline 2 is inserted in negative pressure cavity 8 to be connected afterwards with the entrance of nozzle 4, and nozzle 4 goes out The entrance of mouth face venturi steam heater 9, the outlet of negative pressure cavity 8 are connected with the entrance of venturi steam heater 9, text The outlet of steam heater 9 is connected with the entrance of mixing tank 5 in mound, it is preferred that nozzle 4 is high speed nozzle.
Exhaust steam pipeline 6 is communicated with water seal arrangement 10 and emergent exhaust outlet 11;Regulating valve 3 is provided on cooling water pipeline 2.
The invention also includes outlet conduit 1, the outlet of mixing tank 5 is connected with one end of outlet conduit 1, outlet conduit 1 other end is connected with extraneous oxygen-eliminating device.
The present invention specific work process be:
Cooling water from thermal power plant is entered in cooling water pipeline 2, then valve 3 adjusts cooling water flow after the adjustment, then It is sprayed into venturi steam heater 9 through nozzle 4 again, negative pressure cavity 8 is made to form negative pressure, steam exhaust is connected through exhaust steam pipeline 6 and steam exhaust In 7 negative suction chamber 8 of pipeline, mixed heat transfer is then carried out in venturi steam heater 9 with cooling water, is entered finally into mixed In Heshui case 5, water after heating is recyclable to be utilized in oxygen-eliminating device or by other ad eundem heat source systems of thermal power plant, to reach To the purpose of the pre- recuperation of heat of steam exhaust.In addition, under emergency conditions, when steam exhaust flow is excessive or during hypertonia, can wash water seal open Device 10, steam exhaust is exhausted directly in air, and avoiding device is damaged.
Above-mentioned cooling water for Cooling Water From Thermal Power Plants, condensation water, demineralized water, service water, industry water, life water, process water or Middle water.
In the actual production process, 600MW unit determines heat that row's steam exhaust is taken away up to 3MW~5MW, and fixed row The white water vapour that steam exhaust direct emission generates causes environment visual pollution, therefore the present invention carries out recycling tool to determining row's steam exhaust There is good energy economy & environment benefit.
It these are only the technological thought for illustrating the present invention, it is impossible to protection scope of the present invention is limited with this, it is all according to this hair The technological thought of bright proposition, any change done on the basis of technical solution, each falls within protection scope of the present invention.

Claims (5)

1. exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant, which is characterized in that including exhaust steam pipeline (6), steam exhaust connecting pipe (7), negative pressure cavity (8), nozzle (4), cooling water pipeline (2), venturi steam heater (9) and mixing tank (5), exhaust steam pipeline (6) outlet is connected with the one end of steam exhaust connecting pipe (7), the other end of steam exhaust connecting pipe (7) and entering for negative pressure cavity (8) Mouth is connected, and for nozzle (4) in negative pressure cavity (8), the outlet of cooling water pipeline (2) is inserted in negative pressure cavity (8) rear and nozzle (4) entrance is connected, the entrance of the outlet face venturi steam heater (9) of nozzle (4), the outlet of negative pressure cavity (8) with The entrance of venturi steam heater (9) is connected, the outlet of venturi steam heater (9) and the entrance of mixing tank (5) It is connected.
2. exhaust steam residual heat retracting device is arranged surely by thermal power plant according to claim 1, which is characterized in that exhaust steam pipeline (6) is even It is connected with water seal arrangement (10) and emergent exhaust outlet (11).
3. exhaust steam residual heat retracting device is arranged surely by thermal power plant according to claim 1, which is characterized in that further includes outlet conduit (1), the outlet of mixing tank (5) is connected with one end of outlet conduit (1), and the other end of outlet conduit (1) is removed with extraneous Oxygen device is connected.
4. exhaust steam residual heat retracting device is arranged surely by thermal power plant according to claim 1, which is characterized in that cooling water pipeline (2) On be provided with regulating valve (3).
5. exhaust steam residual heat retracting device is arranged surely by thermal power plant according to claim 1, which is characterized in that the nozzle (4) is High speed nozzle.
CN201810183148.1A 2018-03-06 2018-03-06 Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant Pending CN108224402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810183148.1A CN108224402A (en) 2018-03-06 2018-03-06 Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810183148.1A CN108224402A (en) 2018-03-06 2018-03-06 Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant

Publications (1)

Publication Number Publication Date
CN108224402A true CN108224402A (en) 2018-06-29

Family

ID=62666942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810183148.1A Pending CN108224402A (en) 2018-03-06 2018-03-06 Exhaust steam residual heat retracting device is arranged surely by a kind of thermal power plant

Country Status (1)

Country Link
CN (1) CN108224402A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109141059A (en) * 2018-09-03 2019-01-04 亿利洁能科技(武威)有限公司 It is a kind of to determine heat extraction and recovery device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201229122Y (en) * 2008-04-23 2009-04-29 大连汇能技术服务有限公司 Exhaust steam recovery device
CN202253573U (en) * 2011-09-30 2012-05-30 西安吉意创新科技有限公司 Dead steam recycling device of continuous blowdown flash tank
CN202719899U (en) * 2012-07-13 2013-02-06 王军 Jet type low-pressure waste steam recovery device
CN206037005U (en) * 2016-09-12 2017-03-22 中国神华能源股份有限公司 Exhaust steam recovery plant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201229122Y (en) * 2008-04-23 2009-04-29 大连汇能技术服务有限公司 Exhaust steam recovery device
CN202253573U (en) * 2011-09-30 2012-05-30 西安吉意创新科技有限公司 Dead steam recycling device of continuous blowdown flash tank
CN202719899U (en) * 2012-07-13 2013-02-06 王军 Jet type low-pressure waste steam recovery device
CN206037005U (en) * 2016-09-12 2017-03-22 中国神华能源股份有限公司 Exhaust steam recovery plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109141059A (en) * 2018-09-03 2019-01-04 亿利洁能科技(武威)有限公司 It is a kind of to determine heat extraction and recovery device
CN109141059B (en) * 2018-09-03 2023-12-15 亿利洁能科技(武威)有限公司 Fixed heat removal recovery device

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