CN107062925A - Heat abstractor and the air cooling system with it - Google Patents
Heat abstractor and the air cooling system with it Download PDFInfo
- Publication number
- CN107062925A CN107062925A CN201710037983.XA CN201710037983A CN107062925A CN 107062925 A CN107062925 A CN 107062925A CN 201710037983 A CN201710037983 A CN 201710037983A CN 107062925 A CN107062925 A CN 107062925A
- Authority
- CN
- China
- Prior art keywords
- heat abstractor
- fin radiator
- fin
- air
- deep bead
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/005—Auxiliary systems, arrangements, or devices for protection against freezing
Abstract
The invention provides a kind of heat abstractor and the air cooling system with it, the heat abstractor includes many fin radiators being set up in parallel, one end of each fin radiator is connected with steam-distributing pipe, and the other end of each fin radiator is connected with condensing water conduit, and heat abstractor also includes：Air-flow adjusting part, can be opened and closed to block on the outside of the tube wall of fin radiator, to adjust the draught area of fin radiator；Using the heat abstractor of technical solution of the present invention, can be according to the draught area of each fin radiator of temperature adjustment of heat abstractor local environment, so as to avoid fin radiator from freezing when environment temperature is less than 0 DEG C, simultaneously, can be when environment temperature be higher, make air-flow stepless action on fin radiator, improve heat-sinking capability.
Description
Technical field
The present invention relates to cooling device field, in particular to a kind of heat abstractor and the air cooling system with it.
Background technology
Direct air cooling system is the main heat sink equipment of the Steam Turbine in air cooling power plant, and direct air cooling system is by several columns
A shapes heat abstractor is constituted, as shown in figure 1, each row A shapes heat abstractor includes steam-distributing pipe 1, two and of condensing water conduit 2
Several heat-sink units, each heat-sink unit is separated closing by divider wall 4, if each heat-sink unit is radiated by dry plate again
Finned tube 3 is constituted, as shown in Fig. 23 points of fin radiator on each heat-sink unit is two groups, two groups of fin radiators 3 are in mutually
60 ° of angles are in tilted layout, and the upper end of two groups of fin radiators 3 is connected with steam-distributing pipe 1, the lower end of every group of fin radiator 3
With being connected respectively with a condensing water conduit 2.The lower section of fin radiator 3 of each heat-sink unit is provided with an air cooling blower fan 5.
In the course of work, the steam of steam turbine discharge enters through steam-distributing pipe 1, into steam-distributing pipe 1 in steam point
Jin Ru not be in each fin radiator 3, steam radiating in fin radiator 3 condenses into water, and steam and water flow downward entrance
Condensing water conduit 2.In the presence of air cooling blower fan 5 below fin radiator 3, air blows to fin radiator 3 from bottom to top,
Gap between air permeable fin radiator 3 is flow on the inside of A shapes heat abstractor on the outside of heat abstractor, takes away steam release
Heat, reach radiating effect.
In the process of running, the subject matter of appearance is that winter fin radiator 3 and its auxiliary device are deposited to A shapes heat abstractor
In frozen problem, and summer is reduced due to heat exchange efficiency, and turbine discharge back pressure is high, and heat-economy is poor.
Specifically, if environment temperature is less than 0 DEG C during winter operation, steam is constantly by low outside pipe in fin radiator 3
Cooled down in 0 DEG C of air, steam radiating condenses into water and flowed downward in fin radiator 3, and condensate in flow process
It is on the increase, steam is constantly reduced, until the lower steam of fin radiator 3 all condenses into water, condensate continues to flow
Condensate in supercooling, local fin radiator 3 is produced in the presence of cold air less than 0 DEG C to freeze.Even if stopping empty
The operation of air-cooler 5, natural ventilation also can freeze fin radiator 3.
More than 30 DEG C are reached during summer operation during environment temperature highest, the heat-sinking capability of fin radiator 3 declines, environment temperature
Degree rise causes the exhaust pressure of steam turbine to raise, and the safe operation of steam turbine is threatened, even if air cooling blower fan 5 is opened into maximum
Rotating speed, can not also meet radiating requirements.
The content of the invention
It is a primary object of the present invention to provide a kind of heat abstractor and air cooling system with it, to solve prior art
In direct air cooling system winter fin radiator easily freeze, the problem of summer heat-sinking capability declines.
To achieve these goals, according to an aspect of the invention, there is provided a kind of heat abstractor, including many side by side
The fin radiator of setting, one end of each fin radiator is connected with steam-distributing pipe, the other end of each fin radiator
Connected with condensing water conduit, heat abstractor also includes：Air-flow adjusting part, can be opened and closed to block outside the tube wall of fin radiator
Side, to adjust the draught area of fin radiator.
Further, heat abstractor also includes：Air cooling blower fan, is arranged on one of fin radiator away from steam-distributing pipe
Side.
Further, air-flow adjusting part is located at fin radiator on the pipeline section of one end of air cooling blower fan.
Further, air cooling blower fan is multiple, and each air cooling blower fan is located under two fin radiators being oppositely arranged
Side.
Further, air-flow adjusting part is arranged on each fin radiator close to another radiating set corresponding thereto
The side of finned tube.
Further, air-flow adjusting part includes：Deep bead, deep bead blocks the side wall in fin radiator turnablely
On.
Further, bearing of trend of the upset axis of deep bead perpendicular to fin radiator.
Further, deep bead is polylith, bearing of trend arrangement of the polylith deep bead along fin radiator.
Further, deep bead, which has, is used to block the first position of fin radiator and for opening from fin radiator
The second place；Wherein, at first position, deep bead is fitted on fin radiator, and at the second place, deep bead is relative
Predetermined angle is opened in fin radiator.
Further, air-flow adjusting part also includes：Fixed frame, deep bead is rotatably connected to fixation by pivot
On framework.
Further, air-flow adjusting part also includes：Drive device, it is and pivotally connected, for being kept out the wind by pivot driving
Plate is rotated.
Further, heat abstractor also includes being formed between the separator of multiple parallel arrangements, two adjacent separators
Heat-dissipating space, fin radiator is arranged in pairs, and two paired fin radiators are arranged in corresponding heat-dissipating space.
According to another aspect of the present invention there is provided a kind of air cooling system, including heat abstractor, heat abstractor is above-mentioned interior
The heat abstractor of appearance.
Using the heat abstractor of technical solution of the present invention, by setting many fin radiators arranged side by side, each radiating fin
One end of piece pipe is connected with steam-distributing pipe, and the other end of each fin radiator is connected with condensing water conduit, in many radiatings
Air-flow adjusting part is provided with the outside of the tube wall of finned tube, air-flow adjusting part can be opened and closed to block the tube wall in fin radiator
Outside, for the draught area of each fin radiator of the temperature adjustment according to heat abstractor local environment, so as to avoid radiating
Finned tube freezes when environment temperature is less than 0 DEG C, meanwhile, it is capable to when environment temperature is higher, make air-flow stepless action in
On fin radiator, heat-sinking capability is improved.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the overlooking the structure diagram of the heat abstractor of existing direct air cooling system；
Fig. 2 is the side structure schematic view of the heat abstractor of existing direct air cooling system；
Fig. 3 is optional a kind of a kind of working condition of the heat abstractor of direct air cooling system according to embodiments of the present invention
Structural representation；
Fig. 4 is optional a kind of another working condition of the heat abstractor of direct air cooling system according to embodiments of the present invention
Structural representation；
Fig. 5 is a kind of plan structure signal of optional heat abstractor of direct air cooling system according to embodiments of the present invention
Figure；
Fig. 6 is optional a kind of side view knot of the deep bead of the heat abstractor of direct air cooling system according to embodiments of the present invention
Structure schematic diagram；And
Fig. 7 is that a kind of optional deep bead of the heat abstractor of direct air cooling system faces knot according to embodiments of the present invention
Structure schematic diagram.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
1st, steam-distributing pipe；2nd, condensing water conduit；3rd, fin radiator；4th, divider wall；5th, air cooling blower fan；10th, radiating fin
Piece pipe；20th, steam-distributing pipe；30th, condensing water conduit；40th, air-flow adjusting part；41st, deep bead；42nd, pivot；50th, air cooling wind
Machine；60th, separator.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The heat abstractor provided according to embodiments of the present invention, as shown in Figures 3 to 5, including many radiatings being set up in parallel
Finned tube 10, one end of each fin radiator 10 is connected with steam-distributing pipe 20, the other end of each fin radiator 10 with
Condensing water conduit 30 is connected, and heat abstractor also includes：Air-flow adjusting part 40, can be opened and closed to block the pipe in fin radiator 10
On the outside of wall, to adjust the draught area of fin radiator 10.
Using the heat abstractor of technical solution of the present invention, by setting many fin radiators 10 arranged side by side, each radiating
One end of finned tube 10 is connected with steam-distributing pipe 20, and the other end of each fin radiator 10 is connected with condensing water conduit 30,
Air-flow adjusting part 40 is provided with the outside of the tube wall of many fin radiators 10, air-flow adjusting part 40 can be opened and closed to block
On the outside of the tube wall of fin radiator 10, for the logical of each fin radiator 10 of the temperature adjustment according to heat abstractor local environment
Wind area, thus avoid fin radiator 10 environment temperature be less than 0 DEG C when freeze, meanwhile, it is capable to environment temperature compared with
Gao Shi, makes air-flow stepless action on fin radiator 10, improves heat-sinking capability.
When it is implemented, many fin radiators 10 are arranged in two row, with default angle between two row fin radiators 10
Into "eight" shape arrangement, the top of two row fin radiators 10 is connected with a steam-distributing pipe 20, two row fin radiators
10 lower end is connected with two condensing water conduits 30 respectively.Steam-distributing pipe 20 is mutually parallel with two condensing water conduits 30.
In order to improve the heat-sinking capability of fin radiator 10, alternatively, in fin radiator 10 away from steam-distributing pipe 20
Side be provided with air cooling blower fan 50.Air cooling blower fan 50 is arranged horizontally at the lower section of two row fin radiators 10, under
To up-draught.Alternatively, as shown in figure 5, air cooling blower fan 50 is multiple, each air cooling blower fan 50 is located at two row being oppositely arranged and dissipated
The downside of hot finned tube 10 is simultaneously arranged along the bearing of trend of steam-distributing pipe 20 and condensing water conduit 30, air cooling blower fan 50
The distance between diameter and the lowermost end of two row fin radiator 10 match
In order that the air-flow of the generation between each air cooling blower fan 50 does not influence each other, alternatively, along along steam-distributing pipe
20 and the bearing of trend of condensing water conduit 30 be provided with multiple separators 60 being arranged parallel to, two adjacent separators 60
Between form independent heat-sink unit, an air cooling blower fan 50, each air cooling blower fan are set below each independent heat-sink unit
50 airflow functions produced are on multiple fin radiators 10 in an independent heat-sink unit, so that each heat-sink unit
In air-flow will not influence each other.
Air-flow adjusting part 40 is located at fin radiator 10 on the pipeline section of one end of air cooling blower fan 50, i.e., air-flow is adjusted
Component 40 is set close to the inner side of the lower end of two row fin radiators 10.
Alternatively, air-flow adjusting part 40 includes：Deep bead 41 and pivot 42, set in the inner side of two row fin radiators 10
Fixed frame is equipped with, deep bead 41 is rotatably connected on fixed frame by pivot 42, one end of pivot 42 is connected with drive
Dynamic device, drive device is using manually or electrically, and drive device drives deep bead 41 to rotate by pivot 42, so as to
Overturn on the side wall of fin radiator 10 and fin radiator 10 is blocked or opened.
Alternatively, deep bead 41 is polylith, and bearing of trend of the polylith deep bead 41 along fin radiator 10 is parallel to each other cloth
Put, each deep bead 41 upset axis perpendicular to fin radiator 10 bearing of trend.
Deep bead 41 around its pivot 42 rotate during have be used for block fin radiator 10 first position and
For the second place opened from fin radiator 10；Wherein, at first position, deep bead 41 is fitted in fin radiator 10
On by fin radiator 10 block so as to prevent ventilation；At the second place, deep bead 41 opens relative to fin radiator 10
Predetermined angle, so as to increase vent flow.
Heat abstractor according to embodiments of the present invention, each deep bead 41 is arranged parallel to be formed, and air-flow is adjusted
Shutter, shutter is located at fin radiator 10 close to the side of air cooling blower fan 50, in the inner side of fin radiator 10 first
The outer framework of fabrication and installation shutter, so that each deep bead 41 for forming shutter is rotatably mounted on outer framework.
The deep bead 41 of shutter is made up of a piece of to multi-disc, i.e., shutter is at least made up of a piece of deep bead 41, blinds
The deep bead 41 of window is rectangle, and each deep bead 41 is horizontally disposed, and the rotary shaft of deep bead 41 is overlapped with one bar rectangular edges, gear
Aerofoil 41 can be rotated around one rectangular edges.
The length of each deep bead 41 is simultaneously unequal, and its length can be selected between 0.1-1 meter.Deep bead 41
The most long width for being equal to a heat-sink unit of width, if the width of deep bead 41 be less than unit width, using install it is many
Group shutter, the width of the isocratic unit of overall width of multigroup shutter.Shutter is arranged on the inner side of fin radiator 10 0-3.5
In the range of meter Gao Du, the deep bead 41 of shutter is rotated by electric or hand control, and the angle of folding is between 0-60 °.Hundred
The course of work of leaf window deep bead 41 is as follows：
When winter environment temperature is less than 0 DEG C, the deep bead 41 or multiple deep beads 41 of shutter are closed completely,
The part fin radiator 10 that now air can not be blocked by shutter, serves the effect for reducing ventilation, prevents down
The fin radiator 10 of the easy ice fraction in portion freezes.
When summer environment temperature is higher than 0 DEG C, the danger freezed is not present in fin radiator 10, by the deep bead of shutter
41 are opened by certain angle, and the deep bead 41 of shutter plays a part of water conservancy diversion, increases the ventilation of fin radiator 10.By
It is a rectangle in the downward projection of whole heat abstractor, and the downward projection of air cooling blower fan 50 is a circle, and air cooling wind
The diameter of the outlet of machine 50 circular cross-section is less than the width of whole heat abstractor downward projection, so in summer air cooling blower fan 50 at a high speed
The distinguished and admirable of the generation of air cooling blower fan 50 is vertically upward, therefore, to deviate the part radiating fin that air cooling blower fan 50 is exported during rotation
The air quantity that the heat exchange surface of pipe 10 passes through is smaller, exchanges heat not good.And face the fin radiator above the outlet of air cooling blower fan 50
10 air quantity passed through are larger, and heat exchange is strong.Distinguished and admirable uniformly drawn by what the effect of deep bead 41 can produce air cooling blower fan 50
It is directed on each fin radiator 10, it is ensured that each fin radiator 10 exchanges heat uniformly, improves radiating efficiency.
The advantage of the heat abstractor of the embodiment of the present invention is by being realized in the inner side of fin radiator 10 increase shutter
Two functions, first is by closing shutter, to prevent air from by part radiating fin when winter environment temperature is less than 0 DEG C
Piece pipe 10, protects the tube bank easily freezed, serves antifreeze effect；Second is, when environment temperature is higher than 0 DEG C, to beat
Shutter blade is opened to certain angle, air conducting effect is played, the air mass flow for brushing air fin radiator 10 is entered
Row is organized again, the balanced flow of part fin radiator 10, enhances heat exchange.
Present invention also offers a kind of air cooling system, including heat abstractor, the heat abstractor is the radiating of above-described embodiment
Device.Using the air cooling system of the heat abstractor of above-described embodiment, by setting many fin radiators 10 arranged side by side, each dissipates
One end of hot finned tube 10 is connected with steam-distributing pipe 20, and the other end and the condensing water conduit 30 of each fin radiator 10 connect
It is logical, air-flow adjusting part 40 is provided with the outside of the tube wall of many fin radiators 10, air-flow adjusting part 40 can be opened and closed to hide
Gear is on the outside of the tube wall of fin radiator 10, for each fin radiator 10 of the temperature adjustment according to heat abstractor local environment
Draught area so that avoid fin radiator 10 environment temperature be less than 0 DEG C when freeze, meanwhile, it is capable in environment temperature
When degree is higher, makes air-flow stepless action on fin radiator 10, improve heat-sinking capability.
Certain 300MW air cooling system unit has the heat abstractor of 6 groups of above-described embodiments, and 5 are included per pack heat dissipation device
Air cooling heat-sink unit, therefore, the air cooling system unit have 30 air cooling heat-sink units.The size of heat-sink unit is 11.325m
× 12.015m, 9.8 meters of 10 length of fin radiator, the angle of two row fin radiators 10 is 60 °.In two row fin radiators
10 inner side sets shutter to be opened/closed, and shutter is divided into 10 groups, and the side of each column fin radiator 10 sets 5 groups, every group
It is made up of four deep beads 41, as shown in Figure 6 and Figure 7, W1=2.4 meters of the width of deep bead 41, the length L1 of deep bead 41 can
Think 0.5 meter or 1 meter.The deep bead 41 of all shutters is closed when winter environment temperature is less than 0 DEG C, and air can not pass through louver
Window, protects the antifreeze position of fin radiator 10；The deep bead 41 of all shutters opens 60 ° of angles when environment temperature is higher than 0 DEG C,
The lower area of fin radiator 10 is allowed more air into, increases ventilation of the original wind speed compared with lower part, increase heat exchange
Intensity, solves the problem of summer heat exchange area is not enough.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of heat abstractor, including many fin radiators (10) being set up in parallel, each fin radiator (10)
One end is connected with steam-distributing pipe (20), and the other end of each fin radiator (10) is connected with condensing water conduit (30),
Characterized in that, the heat abstractor also includes：
Air-flow adjusting part (40), can be opened and closed to block on the outside of the tube wall of the fin radiator (10), to adjust described dissipate
The draught area of hot finned tube (10).
2. heat abstractor according to claim 1, it is characterised in that the heat abstractor also includes：
Air cooling blower fan (50), is arranged on side of the fin radiator (10) away from the steam-distributing pipe (20).
3. heat abstractor according to claim 2, it is characterised in that the air-flow adjusting part (40) is located at the radiating
Finned tube (10) is on the pipeline section of one end of the air cooling blower fan (50).
4. heat abstractor according to claim 2, it is characterised in that the air cooling blower fan (50) is multiple, described in each
Air cooling blower fan (50) is located at the downside for two fin radiators (10) being oppositely arranged.
5. heat abstractor according to claim 4, it is characterised in that the air-flow adjusting part (40) is arranged on each institute
Fin radiator (10) is stated close to the side of another fin radiator (10) set corresponding thereto.
6. heat abstractor according to claim 1, it is characterised in that the air-flow adjusting part (40) includes：
Deep bead (41), the deep bead (41) is blocked on the side wall of the fin radiator (10) turnablely.
7. heat abstractor according to claim 6, it is characterised in that the upset axis of the deep bead (41) is perpendicular to institute
State the bearing of trend of fin radiator (10).
8. heat abstractor according to claim 6, it is characterised in that the deep bead (41) is polylith, gear described in polylith
Bearing of trend arrangement of the aerofoil (41) along the fin radiator (10).
9. heat abstractor according to claim 6, it is characterised in that the deep bead (41), which has, to be used to block described dissipate
The first position of hot finned tube (10) and the second place for being opened from the fin radiator (10)；Wherein, described
During one position, the deep bead (41) is fitted on the fin radiator (10), at the second place, the deep bead
(41) predetermined angle is opened relative to the fin radiator (10).
10. heat abstractor according to claim 6, it is characterised in that the air-flow adjusting part (40) also includes：
Fixed frame, the deep bead (41) is rotatably connected on the fixed frame by pivot (42).
11. heat abstractor according to claim 10, it is characterised in that the air-flow adjusting part (40) also includes：
Drive device, is connected with the pivot (42), for driving the deep bead (41) to rotate by the pivot (42).
12. heat abstractor according to claim 1, it is characterised in that the heat abstractor also includes multiple parallel arrangements
Separator (60), heat-dissipating space is formed between two adjacent separators (60), the fin radiator (10) is in pairs
Set, two paired fin radiators (10) are arranged in the corresponding heat-dissipating space.
13. a kind of air cooling system, including heat abstractor, it is characterised in that the heat abstractor is any in claim 1 to 12
Heat abstractor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037983.XA CN107062925A (en) | 2017-01-18 | 2017-01-18 | Heat abstractor and the air cooling system with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037983.XA CN107062925A (en) | 2017-01-18 | 2017-01-18 | Heat abstractor and the air cooling system with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107062925A true CN107062925A (en) | 2017-08-18 |
Family
ID=59598273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037983.XA Pending CN107062925A (en) | 2017-01-18 | 2017-01-18 | Heat abstractor and the air cooling system with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107062925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800977A (en) * | 2018-06-11 | 2018-11-13 | 华北电力大学 | A kind of power station reciprocating machine ventilation direct air cooled condenser |
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Application publication date: 20170818 |