CN205448740U - Natural draft cooling tower who possesses frostproofing function - Google Patents
Natural draft cooling tower who possesses frostproofing function Download PDFInfo
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- CN205448740U CN205448740U CN201521080554.3U CN201521080554U CN205448740U CN 205448740 U CN205448740 U CN 205448740U CN 201521080554 U CN201521080554 U CN 201521080554U CN 205448740 U CN205448740 U CN 205448740U
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Abstract
The utility model discloses a natural draft cooling tower who possesses frostproofing function, the free cold condenser of natural draft cooling tower internally mounted, the female pipe of steam extraction and blow off branch, each blow off branch all feeds through with female pipe of steam extraction, install on natural draft cooling tower's air intake can automatically regulated degree of opening the shutter, need the refrigerated steam extraction to get into the air cooling condenser through female pipe of steam extraction and blow off branch, the cold air by passing the air cooling condenser behind the tower foreign economic relations shutter, receives heat altered to become the hot -air from the top of the tower discharge tower outside, retrieval and utilization after the steam extraction is collectd by the condensation in the air cooling condenser simultaneously under the effect of natural draft cooling tower draft, can adjust the into air mass flow and the velocity of flow of tower, reduce the heat transfer volume of radiator, improve air cooling system's freezing resistance.
Description
[technical field]
This utility model belongs to engineering field, relates to a cooling stack possessing antifreeze function.
[background technology]
Air cooling system is divided into Direct Air-Cooled and two big systems of indirect air cooling.Direct air cooling system is different because of draft type, is divided into force ventilation and gravity-flow ventilation direct air cooling system；Gravity-flow ventilation direct air cooling system vertical arrangement system outside horizontally disposed and tower in being divided into tower by air cooling tubes condenser arrangement form.Indirect air cooling system is divided into surface-type and hybrid indirect air cooling system according to its air cooling tubes condenser pattern used, and is divided into again horizontally disposed according to the arrangement form of radiator and is arranged vertically indirect air cooling system.
Air cooling technique, because meeting current energy-saving and emission-reduction policy, is applied in recent years and is increasingly increased.Most common of which force ventilation direct air cooling system is widely used, and is equipped with multiple stage axial flow cooling blower in this system.
In recent years, increasingly stricter along with environmental requirement, and the strict control that each engineering project is to its operating cost.In the force ventilation cooling procedure of prior art, the Noise Prevention and Treatment problem of blower fan is more and more prominent, and its power consumption is relatively big, and long-term maintenance cost is the biggest.For the problems referred to above, gravity-flow ventilation direct air cooling system is arisen at the historic moment, and it replaces the axial flow cooling blower in conventional direct air cooling system with cooling stack, eliminates noise and energy consumption that fan operation produces.But simultaneously because the cancellation of blower fan, this system cannot utilize the measure such as stoppage in transit blower fan or unlatching blower fan reversion to solve the problem of system preventing freeze in winter, bring new problem to this system is the most antifreeze.
[utility model content]
This utility model purpose is to provide a kind of cooling stack possessing antifreeze function, controls to flow through air cooling tubes condenser and enters air mass flow and the flow velocity of tower, reduces the heat exchange amount of air cooling tubes condenser, thus improve the frost resistance of cooling stack.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of cooling stack possessing antifreeze function, cooling stack is internally installed air cooling tubes condenser, steam discharge mother pipe and blow-off branch, each blow-off branch all connects with steam discharge mother's pipe, is provided with the shutter that can be automatically adjusted open degree on the air inlet of cooling stack；The steam discharge that need to cool down enters air cooling tubes condenser through steam discharge mother pipe and blow-off branch, cold air is under the effect of cooling stack draft, by tower outer after shutter through air cooling tubes condenser, be heated and become hot-air from tower top discharges tower, in air cooling tubes condenser, steam discharge is condensed and collects rear reuse simultaneously.
Further, between the air inlet of described cooling stack is arranged on tower bottom support column.
Further, described it is circular layout one or more layers shutter along cooling stack bottom air inlet mouth.
Further, described shutter is interlocked with cooling stack cooling system, according to condensing water leaving water temperature, regulates shutter open degree.
Further, described tower bottom support column is that X post is circular layout along cooling stack bottom air inlet mouth that one or more layers can be automatically adjusted open degree shutter.
The beneficial effects of the utility model are:
Cooling stack of the present utility model, is provided with the shutter that can be automatically adjusted open degree on the air inlet of cooling stack, it is possible to regulate the air mass flow into tower and flow velocity, reduces the heat exchange amount of radiator, improves the frost resistance of air cooling system.
Further, condense water leaving water temperature, interlocking regulation shutter open degree according to cooling system, control, into tower air quantity, to maintain and condense the suitable leaving water temperature of water, to ensure the economy of steam turbine operation.
[accompanying drawing explanation]
Fig. 1 is gravity-flow ventilation direct air cooling system shutter site plan of the present utility model；
Fig. 2 is gravity-flow ventilation direct air cooling system shutter section layout drawing of the present utility model；
Wherein: 1 is cooling stack；2 is air cooling tubes condenser；3 is shutter；4 is blow-off branch；5 is tower bottom support column；6 manage for steam discharge mother.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is described in further detail.
See shown in attached Fig. 1 and 2, cooling stack 1 is internally installed air cooling tubes condenser 2, steam discharge mother's pipe 6 and blow-off branch 4, each blow-off branch 4 all connects with steam discharge mother's pipe 6, is provided with the shutter 3 that can be automatically adjusted open degree on the air inlet of cooling stack 1；The steam discharge that need to cool down enters air cooling tubes condenser 2 through steam discharge mother's pipe 6 and blow-off branch 4, cold air is under the effect of cooling stack draft, after shutter 3, air cooling tubes condenser 2 is passed by tower is outer, being heated and become hot-air and discharge tower from tower top, in air cooling tubes condenser, steam discharge is condensed and collects rear reuse simultaneously.
Cooling stack 1 air inlet is installed the shutter 6 that can be automatically adjusted open degree.Through a high position, the steam discharge that need to cool down arranges that steam discharge mother's pipe 6 is delivered in tower in blow-off branch 4, sequentially enter air cooling tubes condenser 2 along blow-off branch 4 and restrain interior；Cold air under the effect of cooling stack draft, by tower outer after tower bottom shutter 6 through air cooling tubes condenser 2 horizontally disposed in tower, be heated and become hot-air from tower top discharges tower, in air cooling tubes condenser, steam discharge is condensed and collects rear reuse simultaneously.
Further, between the air inlet of cooling stack 1 is arranged on tower bottom support column 5.
Further, being circular layout one or more layers shutter along cooling stack 1 bottom air inlet mouth, shutter is interlocked with cooling stack 1 cooling system, according to condensing water leaving water temperature, regulates shutter open degree, and described tower bottom support column 5 is X post.
Regulation shutter aperture will be the important measures of the antifreeze control of this system, and its principle is dependent on controlling the open degree of shutter and regulates into tower air quantity.When ambient air temperature is reduced to certain certain value, automatically controlling shutter aperture, reduce the rate of air circulation entering cooling tower, regulation condenses the outlet temperature of water.This temperature controlling value is to ensure the economy of steam turbine operation, premised on controlling hot-well depression angle value, can be adjusted by winter operation practical situation and determine, typically start when temperature is about 5 DEG C to control shutter aperture.
In severe cold area, it is also possible to arrange double-layer seal shutter, to prevent the infiltration of Winter Cold Wind Infiltration Of.
Above content is to combine accompanying drawing further detailed description of the utility model; it cannot be assumed that detailed description of the invention of the present utility model is only limitted to this; for this utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to this utility model and be determined scope of patent protection by the claims submitted to.
Claims (5)
1. the cooling stack possessing antifreeze function, it is characterized in that: cooling stack (1) is internally installed has air cooling tubes condenser (2), steam discharge mother to manage (6) and blow-off branch (4), each blow-off branch (4) all connects with steam discharge mother pipe (6), is provided with the shutter (3) that can be automatically adjusted open degree on the air inlet of cooling stack (1)；The steam discharge that need to cool down enters air cooling tubes condenser (2) through steam discharge mother pipe (6) and blow-off branch (4), cold air is under the effect of cooling stack draft, after shutter (3), air cooling tubes condenser (2) is passed by tower is outer, being heated and become hot-air and discharge tower from tower top, in air cooling tubes condenser, steam discharge is condensed and collects rear reuse simultaneously.
The cooling stack possessing antifreeze function the most according to claim 1, it is characterised in that: between the air inlet of described cooling stack (1) is arranged on tower bottom support column (5).
The cooling stack possessing antifreeze function the most according to claim 2, it is characterised in that: it is circular layout one or more layers shutter along cooling stack (1) bottom air inlet mouth.
4. according to the cooling stack possessing antifreeze function described in any one of claim 1-3, it is characterised in that: described shutter is interlocked with cooling stack (1) cooling system, according to condensing water leaving water temperature, regulates shutter open degree.
5. according to the cooling stack possessing antifreeze function described in any one of claim 1-3, it is characterised in that: cooling stack (1) bottom support post (5) is X post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080554.3U CN205448740U (en) | 2015-12-22 | 2015-12-22 | Natural draft cooling tower who possesses frostproofing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080554.3U CN205448740U (en) | 2015-12-22 | 2015-12-22 | Natural draft cooling tower who possesses frostproofing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448740U true CN205448740U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521080554.3U Active CN205448740U (en) | 2015-12-22 | 2015-12-22 | Natural draft cooling tower who possesses frostproofing function |
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| Country | Link |
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| CN (1) | CN205448740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726878A (en) * | 2017-11-08 | 2018-02-23 | 国电科学技术研究院 | Gravity-flow ventilation direct air cooling system |
| CN110793378A (en) * | 2019-10-15 | 2020-02-14 | 东南大学 | Natural draft cooling tower anti-freezing system and cooling water temperature control method |
| CN111578736A (en) * | 2020-05-18 | 2020-08-25 | 中国电力工程顾问集团西北电力设计院有限公司 | Heat absorption tower with natural ventilation cooling function |
-
2015
- 2015-12-22 CN CN201521080554.3U patent/CN205448740U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726878A (en) * | 2017-11-08 | 2018-02-23 | 国电科学技术研究院 | Gravity-flow ventilation direct air cooling system |
| CN107726878B (en) * | 2017-11-08 | 2023-12-22 | 国家能源集团科学技术研究院有限公司 | Natural ventilation direct air cooling system |
| CN110793378A (en) * | 2019-10-15 | 2020-02-14 | 东南大学 | Natural draft cooling tower anti-freezing system and cooling water temperature control method |
| CN111578736A (en) * | 2020-05-18 | 2020-08-25 | 中国电力工程顾问集团西北电力设计院有限公司 | Heat absorption tower with natural ventilation cooling function |
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| C14 | Grant of patent or utility model | ||
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