CN210981561U - Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit - Google Patents
Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit Download PDFInfo
- Publication number
- CN210981561U CN210981561U CN201921921117.8U CN201921921117U CN210981561U CN 210981561 U CN210981561 U CN 210981561U CN 201921921117 U CN201921921117 U CN 201921921117U CN 210981561 U CN210981561 U CN 210981561U
- Authority
- CN
- China
- Prior art keywords
- flow area
- forward flow
- temperature measuring
- backward
- tube bundle
- 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.)
- Expired - Fee Related
Links
- 238000009833 condensation Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 title claims abstract description 21
- 230000005494 condensation Effects 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008014 freezing Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model relates to a steam condensation interface recognition device in an air cooling condenser tube bundle of a direct air cooling unit, which comprises at least one condenser tube bundle countercurrent region and condenser tube bundle forward flow regions arranged at two sides of the condenser tube bundle countercurrent region, wherein a temperature measuring cable is arranged between the countercurrent region and the forward flow regions at two sides in a circuitous way; the temperature measuring cable has temperature measuring points at the same height across the forward flow area and the backward flow area, and is used for measuring temperature data of the temperature measuring points of the forward flow area and the backward flow area at the same height and obtaining the temperature difference between the temperature measuring points of the forward flow area and the backward flow area at the same height. The utility model provides the high degree of accuracy and the reliability of judging can carry out accurate detection to air cooling condenser running state, guides the fan to optimize the operation, and the performance is energy-conserving and frost-proof effect.
Description
Technical Field
The utility model relates to a thermal power technical field especially relates to a steam condensation interface recognition device in direct air cooling unit air cooling condenser tube bank.
Background
The air cooling unit is uneconomical to operate in non-high-temperature seasons, and a large energy-saving space exists, but if an effective operation state monitoring device is not available, operators cannot easily master the actual conditions in the condenser pipe bundle, so that the judgment of fan adjustment is difficult to make. Meanwhile, monitoring the running state of the air-cooled condenser has a very positive effect on freezing prevention in winter. According to the Dalton law and the heat dissipation principle of the air-cooled condenser, the condensation state of steam in the condenser tube bundle can be obtained by measuring the air temperature or the metal temperature of the outlet interface of the air-cooled condenser after heat exchange.
In the existing measurement mode, a temperature measuring cable is generally arranged in a bypass manner in a countercurrent region of a condenser tube bundle to measure temperature values of a plurality of temperature measuring points in the countercurrent region, and the temperature values are used as a basis for judging a heat exchange state or an operation state of the condenser tube bundle. The arrangement mode strives for measuring the real temperature of the air at the outlet of the condenser tube bundle and is used as the basis of the operation state of the condenser, however, as a plurality of measuring points need to be arranged in a countercurrent region, and the plurality of measuring points pre-embedded in the cable can not be ensured to be in the same positions and external conditions after the cable is installed, part of the measuring points are in direct contact with the metal tube wall of the tube bundle inevitably, part of the measuring points are in contact with the heat exchange fins of the tube bundle, and part of the measuring points are just positioned at the air channel at the outlet of the tube bundle fins, the accuracy of measured data can not be ensured, and the measured data can not completely and truly. Therefore, the accuracy and reliability of the judgment are not high, too much temperature data cannot be clear at a glance, and the feedback to the operators is not concise and intuitive.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steam condensation interface recognition device in direct air cooling unit air cooling condenser tube bank stridees across condenser tube bank countercurrent region and following current district and arranges circuitous tube bank, through measuring the temperature difference value of same high countercurrent region and following current district temperature measurement station to with this as the judgement foundation of the condensation state of steam in the condenser tube bank, reject each temperature measurement point measuring error's of countercurrent region influence, finally improve the degree of accuracy and the reliability of judgement.
The utility model provides a steam condensation interface recognition device in an air cooling condenser tube bundle of a direct air cooling unit, which is characterized by comprising at least one condenser tube bundle countercurrent region and condenser tube bundle forward-flow regions arranged at two sides of the condenser tube bundle countercurrent region, wherein a temperature measuring cable is arranged between the countercurrent region and the forward-flow regions at two sides in a circuitous way;
temperature measuring points at the same height of the temperature measuring cable cross the forward flow area and the backward flow area and are used for measuring temperature data of the temperature measuring points of the forward flow area and the backward flow area at the same height and obtaining the temperature difference between the temperature measuring points of the forward flow area and the backward flow area at the same height;
the temperature measuring cable crosses the upstream flow area and the two side downstream flow areas from the bottom or the top of the downstream flow area upwards or downwards and is arranged in a rectangular roundabout way, and the temperature measuring cable is led out from the top or the bottom of the downstream flow area.
Further, the forward flow area comprises a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow area comprises a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the temperature measuring cable is arranged from the bottom of the first forward flow area, upwards crosses the first forward flow area, the first backward flow area and the second forward flow area, is arranged on the upper portion of the second forward flow area in a rectangular roundabout mode, passes through the second forward flow area, the second backward flow area and the third forward flow area, downwards crosses the third forward flow area, the second backward flow area and the second forward flow area, is arranged in a rectangular roundabout mode, and is led out from the bottom of the third forward flow area.
Further, the forward flow area comprises a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow area comprises a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the temperature measuring cable crosses the first forward flow area, the first backward flow area and the second forward flow area from the top of the first forward flow area, is folded at the second forward flow area, is arranged to the bottom of the second forward flow area in a rectangular roundabout manner, passes through the second forward flow area, the second backward flow area to the third forward flow area, crosses the third forward flow area, the second backward flow area and the second forward flow area upwards in a rectangular roundabout manner, is led out from the top of the third forward flow area, or is folded back to the bottom of the third forward flow area again to be led out.
Further, the forward flow area comprises a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow area comprises a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the two temperature measuring cables comprise a first temperature measuring cable and a second temperature measuring cable; the first temperature measuring cable is arranged from the bottom of the first forward flow area, upwards crosses the first forward flow area and the first backward flow area in a rectangular roundabout manner, is led to the second forward flow area from the top of the first backward flow area, downwards crosses the second forward flow area and the first backward flow area, and is led out from the bottom of the second forward flow area; the second temperature measuring cable upwards crosses the second forward flow area and the second backward flow area from the bottom of the second forward flow area and is arranged in a rectangular roundabout manner, is led to the third forward flow area from the top of the second backward flow area, downwards crosses the third forward flow area and the second backward flow area, and is led out from the bottom of the third forward flow area
Furthermore, at least one temperature measuring point of the forward flow area and at least two temperature measuring points of the reverse flow area are arranged at the same height.
By means of the scheme, the steam condensation interface recognition device in the air-cooling condenser tube bundle of the direct air-cooling unit measures the temperature difference of temperature measuring points in the countercurrent region and the concurrent region at the same height by arranging the circuitous tube bundle across the countercurrent region and the concurrent region of the condenser tube bundle, and the measured temperature difference is used as a judgment basis for the condensation state of steam in the condenser tube bundle, so that the judgment accuracy and reliability are improved, the running state of the air-cooling condenser can be accurately detected, and the energy-saving and anti-freezing effects are exerted.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention more clearly understood and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Reference numbers in fig. 1:
1-a steam inlet pipe; 2-an exhaust pipe; 31-a first forward flow region; 32-a second forward flow region; 33-a third forward flow region; 4-temperature measuring cable; 51-a first zone of countercurrent flow; 52-a second zone of countercurrent flow; 6-condensation water pipe.
The numbers in fig. 2:
1-a steam inlet pipe; 2-an exhaust pipe; 31-a first forward flow region; 32-a second forward flow region; 33-a third forward flow region; 41-a first temperature measuring cable; 42-a second temperature measuring cable; 51-a first zone of countercurrent flow; 52-a second zone of countercurrent flow; 6-condensation water pipe.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model provides a steam condensation interface recognition device in an air cooling condenser tube bundle of a direct air cooling unit, which comprises at least one condenser tube bundle countercurrent region and condenser tube bundle forward flow regions arranged at two sides of the condenser tube bundle countercurrent region, wherein a temperature measuring cable is arranged between the countercurrent region and the forward flow regions at two sides in a circuitous way;
temperature measuring points at the same height of the temperature measuring cable cross the forward flow area and the backward flow area and are used for measuring temperature data of the temperature measuring points of the forward flow area and the backward flow area at the same height and obtaining the temperature difference between the temperature measuring points of the forward flow area and the backward flow area at the same height;
the temperature measuring cable is arranged from the bottom or the top of a downstream area, upwards or downwards crosses the upstream area and the downstream areas at two sides in a rectangular roundabout way, and is led out from the top or the bottom of the downstream area.
Referring to fig. 1, the forward flow region includes a first forward flow region 31, a second forward flow region 32 and a third forward flow region 33, the reverse flow region includes a first reverse flow region 51 and a second reverse flow region 52, and the first forward flow region 31, the first reverse flow region 51, the second forward flow region 32, the second reverse flow region 52 and the third forward flow region 33 are sequentially arranged;
the temperature measuring cable 4 is provided with one cable, and the cable extends from the bottom of the first forward flow area 31, upwards crosses the first forward flow area 31, the first backward flow area 51 and the second forward flow area 32 to the top of the second forward flow area 32 in a rectangular winding way, passes through the second forward flow area 32, the second backward flow area 52 to the third forward flow area 33, downwards crosses the third forward flow area 33, the second backward flow area 32 and the third forward flow area 33 in a rectangular winding way, and is led out from the bottom of the third forward flow area 33.
In other embodiments, the temperature measuring cable may also cross the first forward flow region, the first backward flow region, and the second forward flow region from the top of the first forward flow region, then turn back at the second forward flow region, and be arranged to the bottom of the second forward flow region in a rectangular winding manner, and cross the second forward flow region, the second backward flow region, and the third forward flow region, and cross the third forward flow region, the second backward flow region, and the second forward flow region upward in a rectangular winding manner, and be led out from the top of the third forward flow region, or be led out back to the bottom of the third forward flow region.
Referring to fig. 2, the forward flow region includes a first forward flow region 31, a second forward flow region 32 and a third forward flow region 33, the reverse flow region includes a first reverse flow region 51 and a second reverse flow region 52, and the first forward flow region 31, the first reverse flow region 51, the second forward flow region 32, the second reverse flow region 52 and the third forward flow region 33 are sequentially arranged; the first temperature measuring cable 41 is arranged from the bottom of the first forward flow area 31, upwards crosses the first forward flow area 31 and the first backward flow area 51 in a rectangular roundabout manner, is led to the second forward flow area 32 from the top of the first backward flow area 51, downwards crosses the second forward flow area 32 and the first backward flow area 51, and is led out from the bottom of the second forward flow area 32; the second temperature measuring cable 42 is arranged from the bottom of the second forward flow area 52, upwards crosses the second forward flow area 32 and the second backward flow area 52 in a rectangular winding manner, is led to the third forward flow area 33 from the top of the second backward flow area 52, downwards crosses the third forward flow area 33 and the second backward flow area 52, and is led out from the bottom of the third forward flow area 33.
In this embodiment, at least one forward flow region temperature measurement point and at least three reverse flow region temperature measurement points are arranged at the same height, so as to improve the measurement accuracy.
According to the device for identifying the steam condensation interface in the air-cooled condenser tube bundle of the direct air-cooled unit, the steam condensation interface in the air-cooled condenser tube bundle of the direct air-cooled unit is identified, the circuitous tube bundles are arranged across the countercurrent region and the cocurrent region of the condenser tube bundle, the temperature difference value of temperature measuring points in the countercurrent region and the cocurrent region at the same height is measured, and the temperature difference value is used as a judgment basis for the condensation state of steam in the condenser tube bundle, so that the judgment accuracy and reliability are improved, the running state of the air-cooled condenser can be accurately detected, and the energy-saving and anti-freezing effects.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The device for identifying the steam condensation interface in the air-cooled condenser tube bundle of the direct air-cooled unit is characterized by comprising at least one condenser tube bundle countercurrent region and condenser tube bundle forward regions arranged at two sides of the condenser tube bundle countercurrent region, wherein a temperature measuring cable is arranged between the countercurrent region and the forward regions at two sides in a winding way;
temperature measuring points at the same height of the temperature measuring cable cross the forward flow area and the backward flow area and are used for measuring temperature data of the temperature measuring points of the forward flow area and the backward flow area at the same height and obtaining the temperature difference between the temperature measuring points of the forward flow area and the backward flow area at the same height;
the temperature measuring cable crosses the upstream flow area and the two side downstream flow areas from the bottom or the top of the downstream flow area upwards or downwards and is arranged in a rectangular roundabout way, and the temperature measuring cable is led out from the top or the bottom of the downstream flow area.
2. The device for identifying the steam condensation interface in the tube bundle of the air condenser of the direct air cooling unit according to claim 1, wherein the forward flow areas comprise a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow areas comprise a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the temperature measuring cable is arranged from the bottom of the first forward flow area, upwards crosses the first forward flow area, the first backward flow area and the second forward flow area, is arranged on the top of the second forward flow area in a rectangular winding manner, passes through the second forward flow area, the second backward flow area and the third forward flow area, downwards crosses the third forward flow area, the second backward flow area and the second forward flow area, is arranged in a rectangular winding manner, and is led out from the bottom of the third forward flow area.
3. The device for identifying the steam condensation interface in the tube bundle of the air condenser of the direct air cooling unit according to claim 1, wherein the forward flow areas comprise a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow areas comprise a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the temperature measuring cable crosses the first forward flow area, the first backward flow area and the second forward flow area from the top of the first forward flow area, is folded at the second forward flow area, is arranged to the bottom of the second forward flow area in a rectangular roundabout manner, passes through the second forward flow area, the second backward flow area to the third forward flow area, crosses the third forward flow area, the second backward flow area and the second forward flow area upwards in a rectangular roundabout manner, is led out from the top of the third forward flow area, or is folded back to the bottom of the third forward flow area again to be led out.
4. The device for identifying the steam condensation interface in the tube bundle of the air condenser of the direct air cooling unit according to claim 1, wherein the forward flow areas comprise a first forward flow area, a second forward flow area and a third forward flow area, the reverse flow areas comprise a first reverse flow area and a second reverse flow area, and the first forward flow area, the first reverse flow area, the second forward flow area, the second reverse flow area and the third forward flow area are sequentially arranged;
the two temperature measuring cables comprise a first temperature measuring cable and a second temperature measuring cable; the first temperature measuring cable is arranged from the bottom of the first forward flow area, upwards crosses the first forward flow area and the first backward flow area in a rectangular roundabout manner, is led to the second forward flow area from the top of the first backward flow area, downwards crosses the second forward flow area and the first backward flow area, and is led out from the bottom of the second forward flow area; the second temperature measuring cable is arranged from the bottom of the second forward flow area, upwards crosses the second forward flow area and the second backward flow area in a rectangular roundabout manner, is led to the third forward flow area from the top of the second backward flow area, downwards crosses the third forward flow area and the second backward flow area, and is led out from the bottom of the third forward flow area.
5. The device for identifying the steam condensation interface in the tube bundle of the air condenser of the direct air cooling unit according to any one of claims 1 to 4, wherein at least one temperature measuring point of the forward flow region and at least two temperature measuring points of the reverse flow region are arranged at the same height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921117.8U CN210981561U (en) | 2019-11-08 | 2019-11-08 | Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921921117.8U CN210981561U (en) | 2019-11-08 | 2019-11-08 | Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210981561U true CN210981561U (en) | 2020-07-10 |
Family
ID=71438201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921921117.8U Expired - Fee Related CN210981561U (en) | 2019-11-08 | 2019-11-08 | Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210981561U (en) |
-
2019
- 2019-11-08 CN CN201921921117.8U patent/CN210981561U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201429471Y (en) | Measurement apparatus for power plant air condenser temperature field | |
| CN101592529B (en) | Measuring device for temperature field of air-cooled condenser of power plant | |
| CN102313471B (en) | The function of cooling system monitors and/or control method and corresponding cooling system | |
| CN109443075B (en) | Thermal performance evaluation method and monitoring system for closed cooling tower | |
| CN109163596A (en) | A kind of novel flow-disturbing fin | |
| CN210981561U (en) | Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit | |
| CN110220546A (en) | System and method for detecting blockage of thin shell type heat exchanger for tunnel | |
| CN211823910U (en) | Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit | |
| CN210980880U (en) | Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit | |
| CN210982284U (en) | Device for identifying steam condensation interface in tube bundle of air-cooled condenser of direct air-cooling unit | |
| CN102589824B (en) | Air leakage detection method of condenser | |
| CN203274955U (en) | Air cooling anti-freezing monitoring device | |
| CN112051082A (en) | Fault diagnosis method in operation of heat exchanger of heat supply system | |
| CN105318626B (en) | Current transformer tests water-cooling system | |
| CN205403304U (en) | Converter test water cooling system | |
| CN110780129A (en) | Electricity stealing and leakage positioning method based on current deviation analysis technology | |
| CN105301046A (en) | Thermal performance detection device of heat exchanger | |
| CN205192994U (en) | Hot performance detection device of heat exchanger | |
| CN113109384B (en) | Dynamic capacity increase evaluation method for power transmission and transformation hybrid line | |
| CN214173013U (en) | Air cooling condenser temperature transition interface catching device | |
| CN109269664B (en) | Furnace temperature measuring device and boiler | |
| CN204085735U (en) | Generating plant air cooled fin tube monitoring device and directly or indirectly air cooling heat radiator | |
| CN103674342B (en) | A kind of water cassette heat flow transducer | |
| CN202734884U (en) | Flow measuring unit for steam-condensed water in vacuum pipe of direct air-cooled condenser | |
| CN214309192U (en) | Intelligent online temperature measuring system for direct air cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Zhigang Inventor after: Wang Wei Inventor after: Ye Xiang Inventor after: Li Yanping Inventor after: Ma Yufei Inventor after: Zhang Feifei Inventor after: Kong Lingguo Inventor after: Wang Qingfeng Inventor after: Li Bo Inventor after: Yang Chao Inventor after: Guo Tingting Inventor after: Feng Yufeng Inventor after: Wan Kuifang Inventor after: Qiu Guizhi Inventor after: Wang Ran Inventor after: Song Yin Inventor after: Wang Heqi Inventor after: Wang Yingmin Inventor before: Zhang Zhigang Inventor before: Ye Xiang Inventor before: Li Yanping Inventor before: Ma Yufei Inventor before: Zhang Feifei Inventor before: Kong Lingguo Inventor before: Wang Qingfeng Inventor before: Li Bo Inventor before: Yang Chao Inventor before: Guo Tingting Inventor before: Wan Kuifang Inventor before: Qiu Guizhi Inventor before: Wang Ran Inventor before: Song Yin Inventor before: Wang Heqi Inventor before: Wang Yingmin Inventor before: Wang Wei |
|
| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |