CN106091722A - A kind of plant condenser moisturizing atomization system - Google Patents
A kind of plant condenser moisturizing atomization system Download PDFInfo
- Publication number
- CN106091722A CN106091722A CN201610583450.7A CN201610583450A CN106091722A CN 106091722 A CN106091722 A CN 106091722A CN 201610583450 A CN201610583450 A CN 201610583450A CN 106091722 A CN106091722 A CN 106091722A
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- Prior art keywords
- condenser
- layer
- nozzle assembly
- water
- nozzle
- 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.)
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Links
- 230000003020 moisturizing effect Effects 0.000 title claims abstract description 35
- 238000000889 atomisation Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000007921 spray Substances 0.000 claims abstract description 11
- 238000011033 desalting Methods 0.000 claims abstract description 4
- 238000009826 distribution Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 239000000779 smoke Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000000867 larynx Anatomy 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/04—Auxiliary systems, arrangements, or devices for feeding, collecting, and storing cooling water or other cooling liquid
Abstract
A kind of plant condenser moisturizing atomization system, including pipeline, valve, atomising device, atomising device is arranged in condenser throat, if atomising device arranges dried layer nozzle assembly；Being provided with multiple atomizer on each layer of nozzle assembly, pipeline connects with power plant's Desalting Water System, utilizes water pump by the desalted water of certain pressure and flow velocity to be atomized water curtain mode, sprays from nozzle；Can meet a large amount of moisturizing demands during power plant's heat supply application, improve the heat exchange efficiency of moisturizing and turbine discharge, not affect the internal heat space making full use of condenser under the internal steam flow of condenser.
Description
Technical field
The present invention relates to water chiller field, thermal power plant, particularly relate to a kind of condenser water replenishing atomization system and side
Method.
Background technology
Power plant runs and there is steam in production process and condense the loss of water, loses, for supplementing these, the power plant caused
Working medium reduces, and can supplement demineralized water in boiler, steam turbine equipment and therrmodynamic system thereof.Supplementary water generally has two ways to enter
Therrmodynamic system: one is to enter oxygen-eliminating device, one is to enter condenser.
In existing water supplement technology, it is to make to supplement water to realize atomization at condenser throat, makes the chemistry filled water (20 of low temperature
～25 DEG C) in condenser throat, realize mixed heat transfer, part turbine discharge with the turbine discharge (more than 35 DEG C) of high temperature
Condense in advance at condenser throat, so that the vapour amount that steam turbine enters Cooling Tubes of Condenser region reduces, so, at cooling tube
In the case of inner cooling water amount, water temperature are constant, favourable to the vacuum improving condenser.But find in actual motion, existing dress
Putting when moisturizing, owing to current are to spray water aperture ejection along several rows on condenser throat filling pipe, these apertures are along mending
Length of pipe direction arranges, and hole diameter is 3mm～5mm, and under the effect of supplementing water pressure, moisturizing sprays with column.Column
Current effluxvelocity fast, jet length is remote, and heat exchange area is less, so that the moisturizing of low temperature and high temperature steam discharge are at condenser
Throat cannot obtain sufficient mixed heat transfer, it is impossible to makes turbine discharge farthest be condensed in throat.
In steam turbine heat supply application, a kind of is for steam to the technical process of factory steam unit.Now steam no longer returns
To power plant.So, power plant's power set are just with greater need for a large amount of moisturizings, and otherwise, the water in Steam Power Equipment can be fewer and feweri, nothing
Method is run.Generally, this strand of rate of water make-up is bigger.And use current water supplement technology, due to design rate of water make-up
Normal power generation operation conditions corresponding to system, it is impossible to when meeting as heat supply offer application, corresponding to substantial amounts of system water supplement
The actual demand of amount.
Summary of the invention
It is an object of the invention to provide the internal heat space of a kind of Appropriate application condenser, improve heat exchange efficiency, real
The condenser water replenishing system that now a large amount of moisturizings access.
To achieve these goals, the technical scheme is that a kind of plant condenser moisturizing atomization system, including pipe
Road, valve, atomising device, atomising device is arranged in condenser throat；The desalted water come from small pump, utilizes pipeline from condensing
Access outside device throat, be connected with condenser water replenishing atomization system；When unit moisturizing, open valve, start water pump, desalted water
Sequentially passing through pipeline, valve, atomising device, the desalted water being atomized into water smoke is sprayed onto condenser throat, is mixed into steam turbine row
In vapour, enter bank of condenser pipes with Turbine Steam stream；It is characterized in that: if atomising device arranges dried layer nozzle assembly；Each
Being provided with multiple atomizer on layer nozzle assembly, pipeline connects with power plant Desalting Water System, utilize water pump by certain pressure and
The desalted water of flow velocity, to be atomized water curtain mode, sprays from nozzle.
The present invention uses and moisturizing accesses the injection of multilamellar atomized spray, it is achieved that condenser during heat supply application is mended in a large number
Water, had both achieved sufficient rate of water make-up, had also improved condenser internal heat efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
Fig. 2 is monolayer pipeline jointing construction schematic diagram
Fig. 3 is water curtain density terraced distribution schematic diagram
Fig. 4 is improved structure one schematic diagram of the present invention
Fig. 5 is improved structure two schematic diagram of the present invention
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings, it will be appreciated that content described herein is merely to illustrate
With the explanation present invention, it is not intended to limit the present invention.
Plant condenser moisturizing atomization system, generally includes pipeline, valve, instrument, atomising device etc..Condenser water replenishing mist
Change system is arranged in condenser throat.The desalted water come from small pump, accesses, with condenser water replenishing outside condenser throat
Atomization system connects.When unit needs moisturizing, opening valve, start water pump, desalted water sequentially passes through pipeline, valve, atomization
Device, the desalted water being atomized into water smoke is sprayed onto condenser throat, is mixed in turbine discharge, enters solidifying with Turbine Steam stream
Vapour device is restrained.Moisturizing is atomized into water smoke, substantially reduces water droplet and washes away tube bank, and turbine discharge can also be played by moisturizing
Cooling effect.
For producing the condenser of design, moisturizing atomization system can be condenser this body structure of product；For having made
Condenser in, if carried out construction steam turbine heating steam project, needs a large amount of moisturizing, can be with construction reformation condenser larynx
Portion, sets up moisturizing atomization system in throat.The design of moisturizing atomization system is core.Moisturizing atomization system is to be become by Multilayer Density
The atomizer group changed realizes, and can effectively utilize condenser inner space, does not affect the steam discharge steam flow entered within condenser,
Effectively realize big flow moisturizing and internal heat process.
Such as the condenser water replenishing apparatus structure schematic diagram in Fig. 1.
The atomising device arranged at condenser throat includes several layers of nozzle sets.The saturated vapor of about more than 30 DEG C is from steam turbine
Enter condenser throat.The desalted water come from small pump, accesses outside condenser throat, with condenser water replenishing atomization system even
Connect.When unit needs moisturizing, opening valve, start water pump, desalted water sequentially passes through pipeline, valve, atomising device, is atomized
The desalted water becoming water smoke is sprayed onto condenser throat, is mixed in turbine discharge, enters bank of condenser pipes with Turbine Steam stream.
Atomising device is mainly arranged in condenser throat, is made up of N+1 layer pipeline, and N shell pipeline (nozzle sets) runs, and N >=
2,1 layers standby, and pipeline is installed nozzle, and pipeline connects with Desalting Water System, utilizes water pump by certain pressure and the desalination of flow velocity
Water, to be atomized water curtain mode, sprays from nozzle one by one.
Preferably, desirable 2 layers of N, 2 layers of nozzle assembly are used for running, and 1 layer of nozzle assembly is standby.
Each layer of nozzle assembly has similar structure, is made up of given shape pipeline, and circular or rectangle, with condenser larynx
The cross sectional shape in portion matches.Here citing circular configuration illustrates, the pipeline structure of each layer as in figure 2 it is shown, use in
Two orthogonal main lines constitute single layer structure body, and connect multi-layer annular pipe, certain to set spacing installation on ring pipe
The nozzle of quantity.One main line of the superiors for being passed through cooling water from outside.Two main line crossover sites are used for connecting many
The vertical connecting tube of interlayer.Each layer nozzle assembly, is made up of pipeline and atomizer.Nozzle is arranged on pipeline.
The water curtain that every layer of nozzle assembly is formed has certain density, for each layer water curtain density, both can be identical,
Can also differ, as optional upper layer density is high, lower layer density reduces step by step, is adapted to carry out in heat transfer process with steam discharge
From top to bottom change thermal change demand.
The water curtain that same layer nozzle assembly is formed, its density both can be evenly arranged, it is also possible to is to divide in step
Cloth.As it is shown on figure 3, the water curtain density of internal whole heat exchange cutting plane can use terraced distribution, it is positioned at the turbine discharge at center
Flow velocity is maximum, needs to arrange water curtain density accordingly maximum, along reducing the most step by step, arranges internal edge steam turbine
Steam flow speed is minimum, needs to arrange water curtain density accordingly minimum.Can need to arrange 3-5 level terraced distribution according to operating mode.
Water curtain density can use terraced distribution can use multiple specific implementation.
Mode one, its radial dimension of multilamellar nozzle sets becomes larger to lower floor from upper strata, as it is shown in figure 1, what multilamellar was arranged
The different nozzle assembly of radial dimension can realize water curtain density terraced distribution on whole heat exchange cutting plane；
Mode two, in order to realize parts production standard, as shown in Figure 4, all can make each layer in multilamellar nozzle sets
It is made the nozzle sets of normal structure and the size with 2-3 sublayer, each calibrating nozzle group carries out layering and arranges, multiple
Sublayer can use radial dimension variation pattern, can realize water curtain density terraced distribution on whole heat exchange cutting plane；
Mode three, makes further for convenient and install, multilamellar nozzle sets can be designed to identical normal size,
Each layer constitute adjusts its quantity installing nozzle sets on pipeline, will constitute pipeline distribution 3-5 level concentric circular interval, position
On the pipeline that concentric circular in center is interval, unit length top nozzle quantity is most, is positioned on the pipeline in concentric circular interval at edge
Unit length top nozzle minimum number, reduces quantity from center to edge step.
Preferably, if as it is shown in figure 5, when the arrangement space of condenser throat is inadequate, also can be further by 1-3 layer
The intermediate space of both sides tube bank in nozzle assembly layout entrance condenser main body.It is arranged on the nozzle assembly within condenser and larynx
The nozzle assembly in portion has structure and the size of the plane differed, and is adapted to the spatial form within condenser, and not shadow
Steam discharge within Xianging and interbank heat exchange.
As in figure 2 it is shown, include multiple ring pipe (nozzle assembly corresponding to circular) or grid at every layer of nozzle assembly
Type pipe (corresponding to the nozzle assembly of rectangle, not shown in figure).Ring-like or the grid type pipeline chi that each layer nozzle assembly is used
Very little, both can be identical, it is also possible to differ, be adjusted according to installed nozzle quantity.Every layer of nozzle assembly
It is provided with adjustment switch valve between pipeline, connected relation can be regulated by adjusting switch valve, both can be connection, it is possible to
Being disconnected.
Each annular of nozzle assembly or grid type pipe, be passed through shower water from outside.To set in annular or grid type pipe
Determining deviation installs a number of nozzle.Nozzle selects spiral nozzle, is fixed on water-supply-pipe in the way of screw thread, flange or welding
Lu Shang, material selection 316L, precision casting process.Spray angle select 60 degree, 90 degree, 120 degree, 150 degree, 170 degree, hollow or
Solid-cone is sprayed.
The cone of the taper water curtain of spiral nozzle ejection is high, end circular diameter is all corresponding with hydraulic pressure and flow velocity, therefore, and each spray
Circular diameter (size) at the bottom of the water curtain of mouth can be considered it is known that the sectional area of throat is also known.Each layer can be calculated accordingly
The quantity of the spiral nozzle arranged.Arranging enough nozzle sets on pipeline, supplementary desalted water is to be atomized water curtain mode, from one
Individual nozzle sprays, and forms atomization water curtain skirt layer.
Nozzle is installed on each layer nozzle assembly pipeline, both can be quantity to be installed in unit length formed uniform, it is possible to
To be change.Installed nozzle total quantity on each layer nozzle assembly pipeline, both can be identical, it is also possible to be to differ
's.
Nozzle material it is installed on each layer nozzle assembly pipeline and fixing pattern is installed, both can be identical, it is also possible to be
Differ.
Last it is noted that the foregoing is only the explanation of the present invention, it is not limited to the present invention, although to this
Bright being described in detail, for a person skilled in the art, it still can be to aforementioned described technical scheme
Modify, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, made
Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a plant condenser moisturizing atomization system, including pipeline, valve, atomising device, atomising device is arranged on condenser
In throat；The desalted water come from small pump, utilizes pipeline to access outside condenser throat, with condenser water replenishing atomization system even
Connect；When unit moisturizing, opening valve, start water pump, desalted water sequentially passes through pipeline, valve, atomising device, is atomized into water
The desalted water of mist is sprayed onto condenser throat, is mixed in turbine discharge, enters bank of condenser pipes with Turbine Steam stream；Its feature
It is: if atomising device arranges dried layer nozzle assembly；Being provided with multiple atomizer on each layer of nozzle assembly, pipeline is with electricity
Factory's Desalting Water System connects, and utilizes water pump by the desalted water of certain pressure and flow velocity to be atomized water curtain mode, sprays from nozzle.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that atomising device includes that N+1 layer sprays
Nozzle assembly, N shell nozzle assembly is used for running, and 1 layer of nozzle assembly is standby, N >=2.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that if dried layer nozzle assembly is formed
Water curtain, each layer water curtain density, reduce step by step to lower floor from upper strata.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that same layer nozzle assembly is formed
Water curtain density use terraced distribution, be positioned at centrally disposed water curtain density maximum, along reducing the most step by step, at edge
It is minimum that water curtain density is set.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that the nozzle assembly being positioned at lower floor sets
Put in bank of condenser pipes middle part, there is structure and the size of the plane differed with the nozzle assembly being positioned at upper strata.
Plant condenser moisturizing atomization system the most according to claim 4, it is characterised in that every layer of nozzle assembly includes multiple
Annular or grid type pipe, the pipeline structure of same layer nozzle assembly is the planar structure of uneven terraced distribution.
Plant condenser moisturizing atomization system the most according to claim 4, it is characterised in that each layer has multiple sublayer knot
Structure, the plurality of sublayer structure, there is the physical dimension reducing change step by step.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that the pipeline of every layer of nozzle assembly it
Between be provided with adjustment switch valve, regulate, by adjusting switch valve, the relation that is interconnected between each layer.
Plant condenser moisturizing atomization system the most according to claim 4, it is characterised in that every layer of nozzle assembly includes multiple
Annular or grid type pipe, to set the spacing a number of nozzle of installation in annular or grid type pipe, be positioned at the pipeline at center
Upper unit length top nozzle quantity is most, is positioned at unit length top nozzle minimum number on the pipeline at edge, from center to edge
Step reduces quantity.
Plant condenser moisturizing atomization system the most according to claim 1, it is characterised in that on each layer nozzle assembly pipeline
Nozzle quantity, nozzle model, nozzle material and installation approach are installed differ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583450.7A CN106091722B (en) | 2016-07-15 | 2016-07-15 | Water supplementing and atomizing system for condenser of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610583450.7A CN106091722B (en) | 2016-07-15 | 2016-07-15 | Water supplementing and atomizing system for condenser of power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106091722A true CN106091722A (en) | 2016-11-09 |
| CN106091722B CN106091722B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610583450.7A Active CN106091722B (en) | 2016-07-15 | 2016-07-15 | Water supplementing and atomizing system for condenser of power plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106731614A (en) * | 2017-01-14 | 2017-05-31 | 河北宏龙环保科技有限公司 | A kind of method and apparatus of flue gas desulfurization and denitrification |
| CN107084627A (en) * | 2017-05-08 | 2017-08-22 | 华电电力科学研究院 | Large-scale counter-flow cooling tower preventing freeze in winter water dispensing apparatus |
| CN114705077A (en) * | 2022-03-22 | 2022-07-05 | 中海石油气电集团有限责任公司 | Refrigerant uniform distribution system of LNG (liquefied Natural gas) coiled tube heat exchanger |
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| CN107084627B (en) * | 2017-05-08 | 2023-01-06 | 华电电力科学研究院有限公司 | Winter anti-freezing water distribution device for large-scale countercurrent cooling tower |
| CN114705077A (en) * | 2022-03-22 | 2022-07-05 | 中海石油气电集团有限责任公司 | Refrigerant uniform distribution system of LNG (liquefied Natural gas) coiled tube heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN106091722B (en) | 2024-03-22 |
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