CN208968307U - A kind of Direct Air-Cooled improvement system - Google Patents
A kind of Direct Air-Cooled improvement system Download PDFInfo
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- CN208968307U CN208968307U CN201821272128.3U CN201821272128U CN208968307U CN 208968307 U CN208968307 U CN 208968307U CN 201821272128 U CN201821272128 U CN 201821272128U CN 208968307 U CN208968307 U CN 208968307U
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- China
- Prior art keywords
- condensed water
- water collecting
- counter flow
- collecting conduit
- steam
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Abstract
The utility model discloses a kind of Direct Air-Cooleds to improve system, including steam-distributing pipe road and controller；Steam-distributing pipe road includes multiple fair current units and multiple counter flow cells, wherein, each fair current unit and each counter flow cell have been respectively communicated with a condensed water collecting conduit, and condensed water collecting conduit corresponding to each fair current unit is connected by evacuating condensed water collecting conduit corresponding to feed channel counter flow cell adjacent thereto；Multiple temperature-measuring elements are provided on each condensed water collecting conduit；Each fair current unit and each counter flow cell, which respectively correspond, is provided with an air cooling blower fan；The output end of each temperature-measuring element is connect with the input terminal of controller respectively, and the output end of controller is connected respectively the control terminal of each air cooling blower fan.System safety, energy conservation, can uniform each heat exchange unit quantity of steam and heat transfer effect, to realize that summer significantly reduces back pressure, winter effectively prevent freezing.
Description
Technical field
The utility model relates to the technical fields of direct air cooling system, and in particular to a kind of Direct Air-Cooled improvement system.
Background technique
Direct Air-Cooling Technology is the first choice that current north water deficit area develops fired power generating unit, but since its system is huge, by
External environment influences big, and steam distributes unequal in pipe wing, causes that unit in summer back pressure is higher, energy consumption is higher and winter is anti-
The problems such as jelly form is severe is faced with severe development problem under the overall background of national energy-saving consumption reduction.
Utility model content
Aiming at the problems existing in the prior art, it is improved the purpose of this utility model is to provide a kind of Direct Air-Cooled and is
System, the system safety, energy conservation, can uniformly each heat exchange unit quantity of steam and heat transfer effect, can summer significantly reduce carry on the back
Pressure, and effectively prevent freezing in winter.
In order to achieve the above object, the utility model is achieved using following technical scheme.
A kind of Direct Air-Cooled improvement system, including steam-distributing pipe road, the steam-distributing pipe road include multiple fair current lists
First and multiple counter flow cells, wherein each fair current unit and each counter flow cell have been respectively communicated with a condensed water collecting conduit,
And condensed water collecting conduit corresponding to each fair current unit is by evacuating corresponding to feed channel counter flow cell adjacent thereto
Condensed water collecting conduit is connected；Multiple temperature-measuring elements are provided on each condensed water collecting conduit；Each fair current unit
It is respectively corresponded with each counter flow cell and is provided with an air cooling blower fan；The output end of each temperature-measuring element respectively with controller
Input terminal connection, the output end of controller is separately connected the control terminal of each air cooling blower fan.
The characteristics of the utility model and further improvement lies in that:
Preferably, the multiple temperature-measuring element is two or three.
Preferably, the upper end of each counter flow cell is communicated with a steam header, and each steam header passes through
Vacuum lead connection, and it is connected with vacuum pumping pump.
Preferably, each condensed water collecting conduit is connected to condensation supply mains by branch pipe respectively, and the condensation supply mains connects
Pass to condensate tank.
Compared with prior art, the utility model has the following beneficial effects:
The Direct Air-Cooled improvement system of the utility model realizes the Precise control operation to separate unit air cooling blower fan, in machine
, it can be achieved that the temperature to each heat exchange unit carries out independent measurement when group operation, and targetedly adjusted according to measurement result
The running frequency of air cooling blower fan corresponding to each heat exchange unit, to realize the quantity of steam of uniformly each heat exchange unit, Jin Ershi
The existing uniform purpose of each heat exchange unit steam heat-exchanging, and then back pressure is significantly reduced, while reducing energy consumption；In addition, can also be in the winter
Ji Shixian improves entire Direct Air-Cooled comprehensive monitoring of system, prevents the phenomenon that freezes.
Detailed description of the invention
The utility model is described in further details in the following with reference to the drawings and specific embodiments.
Fig. 1 is the structural schematic diagram that the Direct Air-Cooled of the utility model improves a kind of embodiment of system.
In Fig. 1: 1 steam-distributing pipe road；2 fair current units；3 counter flow cells；4 condensed water collecting conduits；5 evacuate feed channel；6
Temperature-measuring element；7 air cooling blower fans；8 steam headers；9 vacuum leads；10 vacuum pumping pumps；11 branch pipes；12 condensation supply mains；
13 condensate tanks.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with embodiment, but those skilled in the art
Member will be understood that the following example is merely to illustrate the utility model, and be not construed as limitation the scope of the utility model.
Fig. 1 is the structural schematic diagram that the Direct Air-Cooled of the utility model improves a kind of embodiment of system, with reference to Fig. 1, originally
It includes steam-distributing pipe road 11 that the Direct Air-Cooled of utility model, which improves system, and steam-distributing pipe road 1 includes multiple 2 Hes of fair current unit
Multiple counter flow cells 3, wherein each fair current unit 2 and each counter flow cell 3 have been respectively communicated with a condensed water collecting conduit 4,
And condensed water collecting conduit 4 corresponding to each fair current unit 2 by evacuate the counter flow cell 3 adjacent thereto of feed channel 5 pair
The condensed water collecting conduit 4 answered is connected.Wherein, there are two being arranged on each condensed water collecting conduit 4 or three temperature are surveyed
Element 6 is measured, each fair current unit 2 and each counter flow cell 3 respectively correspond and be provided with an air cooling blower fan 7.Each temperature measurement
The output end of element 6 is connect with the input terminal of controller (not shown) respectively, and the output end of controller is connected respectively
The control terminal of each air cooling blower fan 7.
Existing Direct Air-Cooled improvement system is transformed in fact, the present embodiment is equivalent to, by each heat exchange unit
The condensed water collecting conduit 4 of (i.e. fair current unit 2 or counter flow cell 3) is independently arranged, and after steam discharge enters this fair current unit 2, is steamed
After vapour and outside air heat exchange condensation, the condensed water collecting conduit 4 of this fair current unit 2 is initially entered, then import by branch pipe 11
After condensing supply mains 12, it is recycled to condensate tank 13；Non-condensing steam is by evacuating feed channel 5 from each fair current unit 2
Condensed water collecting conduit 4 enters counter flow cell 3, and steam continues to condense, and restrains lower end along adverse current tube bundle flow to adverse current after condensation
Condensed water collector pipe, after uncondensed gas rises to steam header 8, extracted out using vacuum pumping pump 10 by vacuum lead 9,
To maintain the vacuum state of whole system.
The present embodiment is arranged 2 temperature-measuring elements 6 on each condensed water collecting conduit 4, each fair current unit 2 and every
A counter flow cell 3, which respectively corresponds, is provided with an air cooling blower fan 7, and the temperature-measuring element 6 of each condensed water collecting conduit 4 is real-time
The temperature of the heat exchange unit is measured, to determine the steam condensation situations of the heat exchange unit, and the result is transmitted in controller.
Temperature-measuring element is temperature sensor, for measuring the temperature of each heat exchange unit；Controller can be DCS decentralised control system
System, controller are monitored by the temperature to each heat exchange unit, to regulate and control the operation that entire Direct Air-Cooled improves system；When
When the temperature of some heat exchange unit is more than preset value, controller will according to circumstances control to adjust sky corresponding with the heat exchange unit
The revolving speed of air-cooler 7.In addition, controller can also control multiple air cooling blower fans 7 simultaneously realizes the major loop for tracking same target
Adjusting.
Specifically,
When the Direct Air-Cooled of the utility model, which improves system, is in summer operation mode, all rotation speed of fan are in major loop
It acts on lower tracking host economy to adjust, when back pressure is increased more than setting value, the revolving speed of all air cooling blower fans 7 increases simultaneously；
The revolving speed of opposite then all air cooling blower fans 7 reduces automatically；The variation of the collector pipe condensing water temperature corresponding to some heat exchange unit
When more than setting value, the auxiliary control regulating loop of 7 revolving speed of air cooling blower fan corresponding with the unit is acted, and is correspondingly improved or reduces this
The revolving speed of platform air cooling blower fan 7, thus the uniformly quantity of steam of each heat exchange unit, and then realize that each heat exchange unit steam heat-exchanging is equal
Even purpose reduces unit back pressuce, energy-saving run.
When the Direct Air-Cooled of the utility model, which improves system, is in winter operation mode, due to the condensation of the utility model
Water collecting conduit 4 is independently arranged relative to each heat exchange unit, and the temperature being mounted on each condensed water collecting conduit 4 is surveyed
Amount element 6 can be monitored in real time and react the condensation situations of each heat exchange unit, it can be ensured that each heat exchange unit is realized antifreeze
Monitoring, it is ensured that entire Direct Air-Cooled improves the safe operation of system, guarantees the safety of unit, effectively overcome it is existing directly
What the temperature-measuring element 6 in air-cooled improvement system measured is multiple mixed water temperatures of heat exchange unit condensed water, be cannot achieve
Real time monitoring to each heat exchange unit steam condensation situations and the problem of be unfavorable for the antifreeze monitoring of winter air cooling system.
The Direct Air-Cooled improvement system of the utility model realizes the Precise control operation to separate unit air cooling blower fan 7,
When unit is run, when steam distributes unevenness, to the lesser heat exchange unit of quantity of steam, the revolving speed of air cooling blower fan 7 is reduced, reduces energy
Consumption；To the biggish heat exchange unit of quantity of steam, rotation speed of fan is improved, reduces unit back pressuce, improves economy；The operation of winter unit
When, the running frequency of corresponding blower can be adjusted in due course, is realized to entire sky according to the variation of the condensation water temperature of each heat exchange unit
Comprehensive monitoring of cooling system, prevents the phenomenon that freezes.
Although having made to retouch in detail to the utility model with a general description of the specific embodiments in this specification
State, but on the basis of the utility model, it can be made some modifications or improvements, this be to those skilled in the art it is aobvious and
It is clear to.Therefore, it is practical new to belong to this for these modifications or improvements on the basis of without departing from the spirit of the present invention
The claimed range of type.
Claims (5)
1. a kind of Direct Air-Cooled improves system, which is characterized in that including steam-distributing pipe road and controller；The steam-distributing pipe
Road includes multiple fair current units and multiple counter flow cells, wherein each fair current unit and each counter flow cell have been respectively communicated with one
A condensed water collecting conduit, and condensed water collecting conduit corresponding to each fair current unit is adjacent thereto by evacuating feed channel
Condensed water collecting conduit corresponding to counter flow cell is connected；
Multiple temperature-measuring elements are provided on each condensed water collecting conduit；Each fair current unit and each counter flow cell difference
It is correspondingly arranged on an air cooling blower fan；
The output end of each temperature-measuring element is connect with the input terminal of controller respectively, and the output end of controller respectively corresponds company
Connect the control terminal of each air cooling blower fan.
2. Direct Air-Cooled according to claim 1 improves system, which is characterized in that the multiple temperature-measuring element is two
It is a or three.
3. Direct Air-Cooled according to claim 1 improves system, which is characterized in that the upper end of each counter flow cell connects
It is connected with a steam header, each steam header is connected to by vacuum lead, and is connected with vacuum pumping pump.
4. Direct Air-Cooled according to claim 1 improves system, which is characterized in that each condensed water collecting conduit leads to respectively
Branch pipe connection condensation supply mains is crossed, the condensation supply mains is connected to condensate tank.
5. Direct Air-Cooled according to claim 1 improves system, which is characterized in that the temperature-measuring element is temperature biography
Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272128.3U CN208968307U (en) | 2018-08-08 | 2018-08-08 | A kind of Direct Air-Cooled improvement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821272128.3U CN208968307U (en) | 2018-08-08 | 2018-08-08 | A kind of Direct Air-Cooled improvement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208968307U true CN208968307U (en) | 2019-06-11 |
Family
ID=66749848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821272128.3U Expired - Fee Related CN208968307U (en) | 2018-08-08 | 2018-08-08 | A kind of Direct Air-Cooled improvement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208968307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141055A (en) * | 2018-08-08 | 2019-01-04 | 中国大唐集团科学技术研究院有限公司西北分公司 | It is a kind of can uniform heat exchange direct air cooling system |
-
2018
- 2018-08-08 CN CN201821272128.3U patent/CN208968307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141055A (en) * | 2018-08-08 | 2019-01-04 | 中国大唐集团科学技术研究院有限公司西北分公司 | It is a kind of can uniform heat exchange direct air cooling system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190611 Termination date: 20200808 |