CN204421734U - The gravity-flow ventilation dry cooling tower of bypass air door is set - Google Patents
The gravity-flow ventilation dry cooling tower of bypass air door is set Download PDFInfo
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- CN204421734U CN204421734U CN201520001577.4U CN201520001577U CN204421734U CN 204421734 U CN204421734 U CN 204421734U CN 201520001577 U CN201520001577 U CN 201520001577U CN 204421734 U CN204421734 U CN 204421734U
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- bypass air
- heat radiator
- tower
- air door
- cooling heat
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- 238000001816 cooling Methods 0.000 title claims abstract description 98
- 238000009423 ventilation Methods 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 3
- 230000002528 anti-freeze Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a kind of gravity-flow ventilation dry cooling tower arranging bypass air door, comprise air cooling heat radiator (1), tower body (3) and enclosed construction (4) between air cooling heat radiator top and tower body, air cooling heat radiator is arranged vertically on tower body (3) lower outside, some bypass air doors (2) set up by described cooling tower, described bypass air door (2) to be arranged between air cooling heat radiator top and tower body on enclosed construction (4), or described bypass air door (2) is arranged on tower body (3), described bypass air door (2) possesses opening and closing function.The utility model is when environment temperature is lower, the draft that cold wind reduces dry cooling tower is directly introduced by opening bypass air door, to be reduced by the air quantity of air cooling heat radiator, realize antifreeze, there is water temperature unevenness little, the advantage that safe operation water temperature is low, can improve the resistance to frost of dry cooling tower air cooling heat radiator under cold district low temperature environment, and reduces the operation coal consumption of generating set.
Description
Technical field
The utility model relates to a kind of gravity-flow ventilation dry cooling tower, is mainly used in thermal power plant indirect air cooling system.
Background technology
Thermal power plant indirect air cooling system is used widely.Gravity-flow ventilation dry cooling tower is the pith of indirect air cooling system, its primarily of air cooling heat radiator, tower body and between air cooling heat radiator top and tower body enclosed construction form.Gravity-flow ventilation dry cooling tower operation principle is: first air enters and be arranged vertically on outside tower or the horizontally disposed air cooling heat radiator at tower bottom, carries out heat exchange with the hot water in air cooling heat radiator heat-transfer pipe; Enter in tower body after the temperature rising of air, the draft then utilizing tower body height and atmospheric density difference to produce is discharged the top exit of the air after heating by tower body outside tower again.Gravity-flow ventilation dry cooling tower has that operating cost is low, noiselessness and by advantages such as large wind effect are little, but under the winter low temperature environment of north cold area, its air cooling heat radiator resistance to frost is poor.
The gravity-flow ventilation dry cooling tower used in engineering is at present after environment temperature is lower than 0 DEG C, and the ventilation reducing cooling tower by turning down air cooling heat radiator inlet louver increase windage is carried out antifreeze to air cooling heat radiator.But air cooling heat radiator air feed shutter window size is large, quantity is many, inevitable existence because manufacturing, alignment error produces closes the defects such as inconsistent, local blade distortion as blade, under the effect of the gravity-flow ventilation dry cooling tower draft do not weakened, increased by the air intake unevenness of shutter, each air cooling heat radiator water temperature unevenness is caused also to increase, as water temperature controls too low, water temperature unevenness can not be overcome, then easily cause air cooling heat radiator local overcooling to freeze.For overcoming water temperature unevenness in Practical Project, often need the operation water temperature improving air cooling heat radiator, but so improve generating set operation back pressure, add coal consumption, sacrifice economy.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provides one can make generating set in the winter time with lower, more economical back pressure operation, and the gravity-flow ventilation dry cooling tower that resistance to frost is good.
The purpose of this utility model is achieved in that a kind of gravity-flow ventilation dry cooling tower arranging bypass air door, comprise air cooling heat radiator, tower body and enclosed construction between air cooling heat radiator top and tower body, air cooling heat radiator is arranged vertically on tower body lower outside, it is characterized in that: some bypass air doors set up by described cooling tower, described bypass air door to be arranged between air cooling heat radiator top and tower body on enclosed construction, or described bypass air door is arranged on tower body, described bypass air door possesses opening and closing function.
The utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, and described bypass air door is shutter form.
The utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, and described bypass air door is sliding door form.
The utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, and several bypass air doors described between air cooling heat radiator top and tower body, enclosed construction are uniform arranged in form.
The utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, and several bypass air doors described are uniform arranged in form on tower body.
The utility model is application like this: when environment temperature is high or thermic load is large, close all bypass air doors, and the outer cold wind of tower is all by entering in tower after air cooling heat radiator heat exchange; When environment temperature lower than 0 DEG C and air cooling heat radiator leaving water temperature lower than the water temperature that generating set economical operation back pressure is corresponding time; part or all of unlatching bypass air door; the outer cold wind of a part of tower is made directly to enter in tower by bypass air door; reduce the draft of tower; the air quantity being reduced by air cooling heat radiator, to control air cooling heat radiator leaving water temperature, realizes the anti-frost protection of air cooling heat radiator.
The utility model has the advantages that:
1) essence opening bypass air door minimizing tower ventilation is adopted to be reduce the draft of tower, the mode that air cooling heat radiator air feed shutter window increase tower resistance reduces air quantity is closed relative to adopting, the air intake of air cooling heat radiator evenly, air cooling heat radiator resistance to frost at low ambient temperatures can be improved (when bypass air door is shutter form, also the situation of leaking out can be there is in off position, the cooling performance of dry cooling tower summer high temperature period can be reduced in theory, but this inleakage is very limited relative to total ventilation of cooling tower, and bypass air door size and quantity are all much smaller than air cooling heat radiator air feed shutter window, sealing property more easily controls, so inleakage can be less, negligible on the cooling capacity impact of dry cooling tower, and when environment temperature is lower, when air cooling heat radiator needs anti-frost protection, for opening and using, there is not impact of leaking out in bypass air door).
2) when environment temperature is extremely low, in air cooling heat radiator air feed shutter window complete shut-down situation, open bypass air door, reduce tower draft, largely can reduce the inleakage of air cooling heat radiator air feed shutter window, the resistance to frost of air cooling heat radiator under the low temperature environment of pole can be improved.
3) the gravity-flow ventilation dry cooling tower arranging bypass air door can safe operation under the water temperature that generating set economical operation back pressure is corresponding, decreases generating set and runs coal consumption, have economy.
Accompanying drawing explanation
Fig. 1 is embodiment 1 schematic diagram (bypass air door be arranged between air cooling heat radiator top and tower body on enclosed construction) that the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door.
Fig. 2 is the layout schematic diagram of bypass air door between air cooling heat radiator top and tower body on enclosed construction in embodiment 1.
Fig. 3 is example 2 schematic diagram (bypass air door be arranged on above air cooling heat radiator on tower body) that the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door.
Fig. 4 is the layout schematic diagram of bypass air door on tower body in embodiment 2.
Fig. 5 is shutter form bypass air door structure schematic diagram.
Fig. 6 is sliding door form bypass air door structure schematic diagram.
In figure:
Air cooling heat radiator 1
Bypass air door 2
Tower body 3
Enclosed construction 4 between air cooling heat radiator top and tower body
Framework 5
Control lever 6
Blade 7
Doorframe 8
Push rod 9
Door 10.
Detailed description of the invention
Embodiment 1:
Fig. 1 is embodiment 1 schematic diagram (bypass air door be arranged between air cooling heat radiator top and tower body on enclosed construction) that the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door.Fig. 2 is the layout schematic diagram of bypass air door between air cooling heat radiator top and tower body on enclosed construction in embodiment 1.As depicted in figs. 1 and 2, the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, comprise air cooling heat radiator 1, bypass air door 2, tower body 3 and enclosed construction 4 between air cooling heat radiator top and tower body, air cooling heat radiator is arranged vertically on tower body lower outside, and bypass air door 2 to be arranged between air cooling heat radiator top and tower body on enclosed construction 4.Described bypass air door possesses opening and closing function.As shown in Figure 2, several bypass air doors between air cooling heat radiator top and tower body, enclosed construction 4 are uniform arranged in form.
Embodiment 2:
Fig. 3 is example 2 schematic diagram (bypass air door be arranged on above air cooling heat radiator on tower body) that the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door.Fig. 4 is the layout schematic diagram of bypass air door on tower body in embodiment 2.As shown in Figure 3 and Figure 4, the utility model arranges the gravity-flow ventilation dry cooling tower of bypass air door, comprise air cooling heat radiator 1, bypass air door 2, tower body 3 and enclosed construction 4 between air cooling heat radiator top and tower body, air cooling heat radiator is arranged vertically on tower body lower outside, bypass air door 2 is arranged on the tower body 3 above air cooling heat radiator 1, and described bypass air door possesses opening and closing function.As shown in Figure 4.Several bypass air doors are uniform arranged in form on tower body 3.
Bypass air door can be shutter form as shown in Figure 5, also can be sliding door form as shown in Figure 6.
Claims (5)
1. one kind arranges the gravity-flow ventilation dry cooling tower of bypass air door, comprise air cooling heat radiator (1), tower body (3) and enclosed construction (4) between air cooling heat radiator top and tower body, air cooling heat radiator is arranged vertically on tower body (3) lower outside, it is characterized in that: some bypass air doors (2) set up by described cooling tower, described bypass air door (2) to be arranged between air cooling heat radiator top and tower body on enclosed construction (4), or described bypass air door (2) is arranged on tower body (3), described bypass air door (2) possesses opening and closing function.
2. a kind of gravity-flow ventilation dry cooling tower arranging bypass air door according to claim 1, is characterized in that: described bypass air door (2) is shutter form.
3. a kind of gravity-flow ventilation dry cooling tower arranging bypass air door according to claim 1, is characterized in that: described bypass air door (2) is sliding door form.
4. a kind of gravity-flow ventilation dry cooling tower arranging bypass air door according to Claims 2 or 3, is characterized in that: several bypass air doors (2) described enclosed construction (4) between air cooling heat radiator top and tower body is upper in uniform arranged in form.
5. a kind of gravity-flow ventilation dry cooling tower arranging bypass air door according to Claims 2 or 3, is characterized in that: several bypass air doors (2) described are upper in uniform arranged in form at tower body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001577.4U CN204421734U (en) | 2015-01-05 | 2015-01-05 | The gravity-flow ventilation dry cooling tower of bypass air door is set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520001577.4U CN204421734U (en) | 2015-01-05 | 2015-01-05 | The gravity-flow ventilation dry cooling tower of bypass air door is set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204421734U true CN204421734U (en) | 2015-06-24 |
Family
ID=53472093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520001577.4U Expired - Fee Related CN204421734U (en) | 2015-01-05 | 2015-01-05 | The gravity-flow ventilation dry cooling tower of bypass air door is set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204421734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567526A (en) * | 2015-01-05 | 2015-04-29 | 双良节能系统股份有限公司 | Natural ventilation dry cooling tower with bypass air doors |
-
2015
- 2015-01-05 CN CN201520001577.4U patent/CN204421734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567526A (en) * | 2015-01-05 | 2015-04-29 | 双良节能系统股份有限公司 | Natural ventilation dry cooling tower with bypass air doors |
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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 |
Granted publication date: 20150624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |