CN207197286U - A kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant - Google Patents
A kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant Download PDFInfo
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- CN207197286U CN207197286U CN201621381195.XU CN201621381195U CN207197286U CN 207197286 U CN207197286 U CN 207197286U CN 201621381195 U CN201621381195 U CN 201621381195U CN 207197286 U CN207197286 U CN 207197286U
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Abstract
The utility model discloses a kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant, it includes multiple collectors being connected with master control system, more monitoring cables are connected with each collector, multiple temperature sensors are distributed in the monitoring cable inner, and monitoring cable includes：At least one level monitoring main cables through air cooling tubes condenser radiating tube bank are provided with positioned at the inclined lower area of the following current and adverse current tube bank, in the intersection of following current tube bank, adverse current tube bank, the level monitoring cable vertically draws at least vertical branch's monitoring cable, vertical branch monitoring cable draws at least two horizontal branch monitoring cables, horizontal branch monitoring cable along level again and is attached at the outside of adverse current tube bank.The combined type arrangement of similar F types branch monitoring cable and horizontal temperature monitoring cable of the present utility model, it is easy to operate, improve engineering efficiency.
Description
Technical field
It the utility model is related to device for detecting temperature, in particular to the power plant direct air cooling system that a kind of power plant uses
Temperature field on-line measurement device, belong to power plant air cooling system technical field of temperature measurement.
Background technology
Air cooling is that power plant utilizes a kind of type of cooling of air cooling exhaust steam in steam turbine, air cooling for saving water resource
Condenser is the main heat transmission equipment using air cooling exhaust steam in steam turbine.
As Figure 1-Figure 2, air cooling tubes condenser typically in A shape arrangements, at the top of A shape structures is arranged from steam turbine
The steam in steam pipe road, referred to as steam-distributing pipe, the lower end both sides of A type structures are condensate water collecting pipeline, referred to as condense water manifold.
The both sides of A type radiator structures are the radiating tube banks being in tilted layout, in isoceles triangle structure.A piece of radiating tube bank is by many fins
Composition arranged in parallel is managed, a row A types device is made up of many tube banks.In order to adapt to the setting of draft fan, a row A type devices
One row A shape heat abstractors are separated into multiple cooling units, the corresponding ventilation of a unit by inner side by multiple separating devices
Machine.
In order to which the antifreeze tube bank for needing air cooling tubes condenser employs concurrent-countercurrent structure.The steam warp ejected from steam turbine
Steam-distributing pipe enters in radiating tube bank to be flowed from the top down, while the water for condensing conversion also flows from the top down, and steam is with coagulating
It is identical to bear water flow direction, the tube bank of this part is referred to as following current tube bank 5.Pass through in the steam that following current tube bank 5 does not condense completely solidifying
Bearing water pipeline and enter adverse current tube bank 6, steam flows from bottom to top in adverse current tube bank 6, and the water condensed flows from the top down, both
What is flowed is in opposite direction, is provided with the top of adverse current tube bank 6 and evacuates feed channel 7.If a row A shape heat abstractors are always suitable by dry plate
Flowing bundle 5 and the composition of a certain proportion of adverse current tube bank 6.For the less unit of capacity, adverse current is restrained 6 integrated distributions and dissipated in one
In hot cell, to the tube bank of Large-scale machine set adverse current, 6 points 2 sections are distributed in the heat-sink unit of 2 heat-sink units or more.
Monitor the effect in air cooling temperature field：Air cooling tubes condenser is with environment temperature and the difference of unit load, air cooling condensing
The coagulated state of steam is different in device, therefore air cooling system shows different temperature fields.Exported by monitoring cooling medium
Temperature can monitor the distribution in temperature field.Winter environment temperature is low, and 5 bottoms and adverse current are restrained because steam condenses in following current in advance
Restrain 6 tops and low-temperature space easily occur, but because tube bank lower end condensing water flow increases, no matter 5 or adverse current are restrained in following current
All easily there is freezeout in tube bank bottom in tube bank 6, subtracts although quantity of steam is completed in the top of adverse current tube bank 6 with condensation process
It is few, while condensing capacity is also reduced, but the water vapour that contains of on-condensible gas is sublimated it is possible to form cotton-shaped icing, blocks wing
The circulation area of piece pipe.Therefore by on-line monitoring temperature field of air-cooled condenser, air cooling system steam condensing zone can be understood in time
The distribution in domain, for operations staff, guidance is made in adjustment in time, plays the role of to preventing freeze in winter, covering etc. very positive.
Other seasons monitoring air cooling temperature field can provide data for optimization air cooling operation, realize energy-saving.
Utility model content
The technical problems to be solved in the utility model is the multiple-limb device for detecting temperature of air-cooled condenser of power plant, can
The position easily freezed to air cooling system adverse current and following current tube bank carries out emphasis monitoring, plays the antifreezing effect of maximum.
In order to solve the above-mentioned technical problem, the utility model provides a kind of more points for power plant air cooling heat abstractor
Branch device for detecting temperature, the adverse current for monitoring air cooling tubes condenser is restrained and following current tube bank temperature, and it includes multiple and master control system
Unite the collector of connection, more monitoring cables are connected with each collector, multiple temperature sensors are distributed in the monitoring line
Inside cable, the monitoring cable includes：At least one is provided with through sky positioned at the inclined lower area of the following current and adverse current tube bank
The level monitoring main cables of cold condenser radiating tube bank, on the intersection of following current tube bank, adverse current tube bank, the level monitoring cable edge
Vertical at least vertical branch's monitoring cable, the vertical branch monitoring cable of drawing draws at least two levels point along level again
Branch monitors cable, and horizontal branch monitoring cable is attached at the outside of adverse current tube bank.
Further, the length of the horizontal branch monitoring cable is equal to the width of an adverse current tube bank.
Further, the level monitoring main cables are 1~5.
Further, described level monitoring main cables from condense water manifold with being set at the upward 0.5~8m in finned tube junction
Put.
Further, described horizontal branch monitoring cable is provided with 2~6.
Further, described vertical branch monitoring cable is located at the level monitoring main cables and nearest described horizontal point
Length between branch monitoring line is 0.5~5m.
Further, described vertical branch monitoring cable is located between two adjacent two piece horizontal branch monitoring line
Length be 0.5~5m.
Further, described horizontal branch monitoring cable is provided with two, and horizontal branch monitoring cable monitors with vertical branch
Cable and " F " word shape or so identical or symmetric shape.
It is of the present utility model to have technical effect that：The utility model air cooling temperature field monitoring device, branch's monitoring cable are adopted
With like F type arrangements, the position that can easily freeze to air cooling system adverse current and following current tube bank carries out emphasis monitoring, played most
Big antifreezing effect.Solve because air cooling tubes condenser uses suitable/counterflow configuration, construction is complicated, therefore simple horizontally disposed
The monitoring demand to following current air cooling tube bank bottom and adverse current tube bank upper, middle and lower position can not be met simultaneously.
The combined arranging mode of the present utility model that cable is monitored like the monitoring cable connection of F types branch and horizontal temperature, easily
In being manufactured in factory, not only ensure the integrality of monitoring cable, ensure waterproof, sealing characteristics, and each branch monitoring line
Cable can select length according to the actual requirements, the actual range restrained according to concurrent-countercurrent, make monitoring cable by actual ratio, avoid
When branch's monitoring cable wrap direction makes, bending position is indefinite during construction, inconvenient for operation.Therefore, F of the present utility model
Type branch monitors the combined type arrangement of cable and horizontal temperature monitoring cable, easy to operate, improves engineering efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of A shape heat abstractors；
Fig. 2 is a row A shape construction for heat radiating device schematic diagrames；
Fig. 3-Figure 19 is the structural representation of the multiple-limb device for detecting temperature of the utility model power plant air cooling radiating unit
Figure.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art
The utility model can be better understood from and can be practiced, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Fig. 3~Figure 19, it is the multiple-limb device for detecting temperature of the utility model air-cooled condenser of power plant, is used for
The temperature of adverse current tube bank 6 and the following current tube bank 5 of heat abstractor is monitored, it includes master control system, multiple collectors and monitoring cable,
Master control system is connected to multiple collectors, and each collector is connected with more monitoring cables again, and multiple temperature sensors are distributed in
The inside of level monitoring main cables 8 and branch's monitoring cable 9, branch's monitoring cable 9, which divides, to be monitored cable 92 for horizontal branch and hangs down
Straight branch's monitoring cable 91.Therefore, the temperature acquisition network that whole acquisition system is made up of two layers of bus structures.Supervising device
The level monitoring main cables 8 of sensor are provided with following current tube bank 5 and 6 outer lower portion regions of adverse current tube bank, in the outside of adverse current tube bank 6
Upper, middle and lower region be equipped with the horizontal and vertical directions branch monitoring cable 9.
As shown in Fig. 3~Fig. 6, arranged exemplified by A shape heat abstractors share 5 units and illustrated by 300MW units 1, wherein
Level monitoring main cables 8 and the setting distance of branch's monitoring cable 9 illustrate for specific data.Horizontal branch monitors cable 92
Length be equal to the width that an adverse current restrains 6, that is to say, that horizontal branch monitoring cable 92 is attached at each adverse current tube bank 6
Outside, as shown in Figure 4.
As shown in figure 4, in wherein 5 unit heat abstractors, second or four unit be adverse current tube bank 6, first and third, five are
Following current tube bank 5.A piece level monitoring main cables 8 of arrangement at upward 1.5m are counted with finned tube junction from water manifold is condensed,
Can be set at 0.5~8m.Vertical branch, which is drawn, from the intersection of concurrent-countercurrent tube bank 6 monitors cable 91.Branch monitors line
Cable 9 uses F type multiple-branching construction, after bifurcation vertically upward 0.5~5m of height (optimal 1.5m), then branches out a branch
Level monitoring cable 92, it is horizontally disposed into countercurrent zone to the right, untill adverse current restrains 6 right-hand member demarcation lines；Branch supervises
Survey line cable 91 continues up distribution, and from first horizontal branch point, position draws the from 0.5~5m of height (optimal 1.5m) upwards
Two horizontal branch monitoring cables 92 horizontally enter into the right countercurrent zone, finally reach concurrent-countercurrent and restrain 6 low order end edge terminations.Water
The right-hand member connection collector of flat monitoring main cables 8.Fig. 4, Fig. 6 embodiment are identical with Fig. 3, only vertical branch's monitoring line
The branch point of cable 91 in another countercurrent zone, or the vertical branch's cable drawn extraction location have a common boundary in concurrent-countercurrent it is another
One edge.
As shown in fig. 7, arranging A shape heat abstractor single side faces for 300MW units 1 shares 25 tube bank compositions, wherein second is single
Member respectively has two panels tube bank to be restrained for adverse current with single side face in Unit the 4th, and remaining 21 are that following current is restrained.From condense water manifold with
A piece level monitoring main cables 8 of arrangement are counted at upward height 4.5m in finned tube junction, respectively in two sections of adverse current tube banks 6 and suitable
The intersection of flowing bundle 5 draws vertical branch's monitoring cable 91.Branch's monitoring cable 9 uses F type multiple-limb arrangements, left inverse
Flow section and draw vertical branch's monitoring cable 91, the upward 2m of vertical branch from level monitoring main cables 8 in adverse current left hand edge intersection
It is horizontally disposed into countercurrent zone to the right that branch levels branch monitoring cable 92 is drawn again, and horizontal branch monitoring cable 92 is in adverse current
Right-hand member (adverse current tube bank 6) edge termination.Vertical vertical branch's monitoring cable 91 continues up at first horizontal branch point
Second horizontal branch monitoring cable 92 of 2m branches, the horizontal countercurrent zone that enters to the right is untill the right-hand member edge of adverse current.Right adverse current
The trend of Duan Nei branches monitoring cable 9 just monitors the trend of cable with left inverse Liu Duannei branches on the contrary, branch monitors cable 9
Inverted-F shape is presented in structure.As Figure 8-Figure 10, for right adverse current Duan Nei branches monitor cable 9 trend just with left inverse stream section
The trend of interior branch monitoring cable 9 is opposite or identical situation.
As shown in Figure 11~Figure 12,300MW air coolings radiating unit, A shape heat abstractors share 5 units, but reverse stream pipe
Beam illustrates implementation in case of there was only a unit, and upward cloth is counted with finned tube junction from water manifold is condensed
A level monitoring main cables 8 are put, branch's monitoring cable 9 is countercurrently drawn with the intersection of following current.Branch's monitoring cable 9 is also to adopt
With the arrangement of similar F types branch, concurrent-countercurrent intersection draws vertical branch from level monitoring main cables 8 on the left of countercurrent zone
Cable 91 is monitored, vertical branch's monitoring cable 91 branches out horizontal branch monitoring cable 92, the monitoring line of horizontal branch again upwards
Cable 92 enters to the right countercurrent zone, and untill the right side edge of countercurrent zone, but it is 3 that the level monitoring cable branched out, which can be,
Root, 4,5 or more.Figure 13-Figure 14 plays the position of vertical branch and the direction of horizontal branch and such as lucky phases of Figure 11-Figure 12
Instead.
Shown in Figure 15~Figure 19, more level monitoring main cables 8 can be increased, it is strong to increase the monitoring of following current and adverse current
Degree.Figure 15 is to increase a horizontal level monitoring main cables 8, institute in the lower section of former level monitoring main cables 8 on the basis of Fig. 7
Increased level monitoring main cables 8 do not have branch line.Figure 16 is to increase a level without branch line on the basis of Fig. 8 to supervise
Survey main cables 8.Figure 17 is that the result that Fig. 4 and Fig. 6 modes combine is respectively adopted, and horizontal line increase is two, on every horizontal line
Dou You vertical branches line is drawn.Figure 18 is piece level monitoring main cables 8 without branch of increase on the basis of Figure 17, horizontal
Monitoring main cables 8 can also increase more.Figure 19 is the result for increasing more level monitoring cables on the basis of Figure 13, is increased
All drawn on the level monitoring cable added without breakout cable.
Embodiment described above is only the preferred embodiment to absolutely prove the utility model and being lifted, the utility model
Protection domain not limited to this.The equivalent substitute or change that those skilled in the art are made on the basis of the utility model
Change, within the scope of protection of the utility model.The scope of protection of the utility model is defined by claims.
Claims (8)
- A kind of 1. multiple-limb device for detecting temperature for air-cooled condenser of power plant, for monitoring the reverse stream pipe of air cooling tubes condenser Beam and following current tube bank temperature, it includes multiple collectors being connected with master control system, and more monitorings are connected with each collector Cable, multiple temperature sensors are distributed in the monitoring cable inner, it is characterised in that the monitoring cable includes：Positioned at institute The inclined lower area for stating following current and adverse current tube bank is provided with least one level monitoring main line through air cooling tubes condenser radiating tube bank Cable, in the intersection of following current tube bank, adverse current tube bank, the level monitoring cable vertically draws at least vertical branch's monitoring line Cable, vertical branch monitoring cable draw at least two horizontal branch monitoring cables, horizontal branch monitoring cable along level again It is attached at the outside of adverse current tube bank.
- 2. multiple-limb device for detecting temperature according to claim 1, it is characterised in that the horizontal branch monitoring cable Length is equal to the width of an adverse current tube bank.
- 3. multiple-limb device for detecting temperature according to claim 1, it is characterised in that the level monitoring main cables be 1 ~ 5.
- 4. multiple-limb device for detecting temperature according to claim 1, it is characterised in that described level monitoring main cables from Water manifold is condensed with being set at the upward 0.5 ~ 8m in finned tube junction.
- 5. multiple-limb device for detecting temperature according to claim 1, it is characterised in that described horizontal branch monitoring cable Provided with 2~6.
- 6. multiple-limb device for detecting temperature according to claim 1, it is characterised in that described vertical branch's monitoring cable Length between the level monitoring main cables and nearest horizontal branch monitoring line is 0.5 ~ 5m.
- 7. multiple-limb device for detecting temperature according to claim 1, it is characterised in that described vertical branch's monitoring cable Length between adjacent two horizontal branch monitoring line is 0.5 ~ 5m.
- 8. multiple-limb device for detecting temperature according to claim 1, it is characterised in that described horizontal branch monitoring cable Provided with two, the identical or symmetric shape of horizontal branch monitoring cable and vertical branch's monitoring cable and " F " word shape or so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381195.XU CN207197286U (en) | 2016-12-15 | 2016-12-15 | A kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621381195.XU CN207197286U (en) | 2016-12-15 | 2016-12-15 | A kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant |
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| Publication Number | Publication Date |
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| CN207197286U true CN207197286U (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621381195.XU Active CN207197286U (en) | 2016-12-15 | 2016-12-15 | A kind of multiple-limb device for detecting temperature for air-cooled condenser of power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637762A (en) * | 2020-05-07 | 2020-09-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Automatic control method and system for air cooling condenser fan |
-
2016
- 2016-12-15 CN CN201621381195.XU patent/CN207197286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637762A (en) * | 2020-05-07 | 2020-09-08 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Automatic control method and system for air cooling condenser fan |
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