CN211823910U - Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit - Google Patents
Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit Download PDFInfo
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- CN211823910U CN211823910U CN201921931391.3U CN201921931391U CN211823910U CN 211823910 U CN211823910 U CN 211823910U CN 201921931391 U CN201921931391 U CN 201921931391U CN 211823910 U CN211823910 U CN 211823910U
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Abstract
The utility model relates to a device for monitoring the steam condensation state in a 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 discloses a stride across the circuitous temperature measurement cable of arranging in condenser tube bank countercurrent region and following current district, measure the temperature difference value of same high countercurrent region and following current district temperature measurement station to regard this as the judgement foundation of the condensation state of steam in the condenser tube bank, improved the degree of accuracy and the reliability of judgement, can carry out accurate detection to air cooling condenser running state, guide the fan to optimize the operation, 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 state monitoring devices in direct air cooling unit 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 state monitoring devices in direct air cooling unit 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 judging.
The utility model provides a steam condensation state monitoring device in a 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 of a downstream area, upwards crosses the upstream area and the downstream areas at two sides in a zigzag and circuitous manner, is introduced into the downstream area at the opposite side from the top of the downstream area, downwards crosses the upstream area at the opposite side and the downstream areas at two sides in a zigzag and circuitous manner, and is led out from the bottom of the downstream area at the opposite side.
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 are arranged and comprise a first temperature measuring cable and a second temperature measuring cable, the first temperature measuring cable upwards crosses over a first forward flow area, a first backward flow area and a second forward flow area from the bottom of the first forward flow area or the second forward flow area and is arranged in a zigzag and wavy roundabout manner, the first temperature measuring cable is led out from the top of the second forward flow area or the first forward flow area to the opposite side of the first forward flow area or the second forward flow area, the second temperature measuring cable downwards crosses over the opposite side of the first forward flow area, the first backward flow area and the second forward flow area and is arranged in a zigzag and wavy roundabout manner, and the first temperature measuring cable is led out from the bottom of the opposite side of the first forward flow; the second temperature measuring cable is arranged from the lower part of the third forward flow area or the second forward flow area, upwards crosses the third forward flow area, the second backward flow area and the second forward flow area in a zigzag wavy roundabout manner, is led out from the top of the second forward flow area or the third forward flow area to the opposite second forward flow area or the third forward flow area, downwards crosses the opposite second forward flow area, the second backward flow area and the third forward flow area in a zigzag wavy roundabout manner, and is led out from the bottom of the opposite second forward flow area or 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 state monitoring device in the condenser tube bundle of the direct air cooling unit measures the temperature difference value of the temperature measuring points in the countercurrent region and the cocurrent region at the same height by arranging the circuitous tube bundles across the countercurrent region and the cocurrent region of the condenser tube bundle, 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 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 an embodiment of the present invention.
Reference numbers in the figures:
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 device for monitoring the steam condensation state in a 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 of a downstream area, upwards crosses the upstream area and the downstream areas at two sides in a zigzag and wave-shaped roundabout manner, is introduced into the downstream area at the opposite side from the top of the downstream area, downwards crosses the upstream area at the opposite side and the downstream areas at two sides in a zigzag and wave-shaped roundabout manner, and is led out from the bottom of the downstream area at the opposite side.
Referring to fig. 1, in an embodiment, 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 two temperature measuring cables are arranged, and comprise a first temperature measuring cable 41 and a second temperature measuring cable 42, the first temperature measuring cable 41 is arranged from the bottom of a first forward flow area 31 (or a second forward flow area 32), upwards crosses the first forward flow area 31, a first backward flow area 51 and the second forward flow area 32 in a zigzag wave shape, is led out from the top of the second forward flow area 32 (or the first forward flow area 31) to the opposite first forward flow area 31 or the second forward flow area 32, downwards crosses the opposite first forward flow area 31, the first backward flow area 51 and the second forward flow area 32 in a zigzag wave shape, and is led out from the bottom of the opposite first forward flow area 31 or the second forward flow area 32; the second temperature measuring cable 42 is arranged from the bottom of the third forward flow area 33 (or the second forward flow area 32), crosses the third forward flow area 33, the second backward flow area 52 and the second forward flow area 32 upwards in a zigzag and wavy winding manner, is led out from the top of the second forward flow area 32 (or the third forward flow area 33) to the opposite second forward flow area 32 or the third forward flow area 33, crosses the opposite second forward flow area 32, the second backward flow area 52 and the third forward flow area 33 downwards in a zigzag and wavy winding manner, and is led out from the bottom of the opposite second forward flow area 32 or the third forward flow area 33.
In this embodiment, at least one forward flow region temperature measurement point and at least two reverse flow region temperature measurement points are arranged at the same height, so as to improve the measurement accuracy.
According to the device for monitoring the steam condensation state in the condenser tube bundle of the direct air cooling unit, the steam condensation state in the condenser tube bundle of the direct air cooling unit is monitored, the circuitous tube bundles are arranged by crossing the countercurrent area and the cocurrent area of the condenser tube bundle, the temperature difference value of temperature measuring points in the countercurrent area and the cocurrent area 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 cooling condenser can be accurately detected, and the energy-saving and anti-freezing effects are exerted.
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 (3)
1. A device for monitoring the steam condensation state in a condenser tube bundle of a direct air cooling 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 is arranged from the bottom of a downstream area, upwards crosses the upstream area and the downstream areas at two sides in a zigzag and circuitous manner, is introduced into the downstream area at the opposite side from the top of the downstream area, downwards crosses the upstream area at the opposite side and the downstream areas at two sides in a zigzag and circuitous manner, and is led out from the bottom of the downstream area at the opposite side.
2. The device for monitoring the steam condensation state in the tube bundle of the 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 are arranged and comprise a first temperature measuring cable and a second temperature measuring cable, the first temperature measuring cable upwards crosses over a first forward flow area, a first backward flow area and a second forward flow area from the bottom of the first forward flow area or the second forward flow area and is arranged in a zigzag and wavy roundabout manner, the first temperature measuring cable is led out from the top of the second forward flow area or the first forward flow area to the opposite side of the first forward flow area or the second forward flow area, the second temperature measuring cable downwards crosses over the opposite side of the first forward flow area, the first backward flow area and the second forward flow area and is arranged in a zigzag and wavy roundabout manner, and the first temperature measuring cable is led out from the bottom of the opposite side of the first forward flow; the second temperature measuring cable is arranged from the lower part of the third forward flow area or the second forward flow area, upwards crosses the third forward flow area, the second backward flow area and the second forward flow area in a zigzag wavy roundabout manner, is led out from the top of the second forward flow area or the third forward flow area to the opposite second forward flow area or the third forward flow area, downwards crosses the opposite second forward flow area, the second backward flow area and the third forward flow area in a zigzag wavy roundabout manner, and is led out from the bottom of the opposite second forward flow area or the third forward flow area.
3. The device for monitoring the condensation state of the steam in the tube bundle of the condenser of the direct air cooling unit according to claim 1 or 2, 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 |
|---|---|---|---|
| CN201921931391.3U CN211823910U (en) | 2019-11-08 | 2019-11-08 | Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921931391.3U CN211823910U (en) | 2019-11-08 | 2019-11-08 | Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211823910U true CN211823910U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921931391.3U Expired - Fee Related CN211823910U (en) | 2019-11-08 | 2019-11-08 | Device for monitoring steam condensation state in condenser tube bundle of direct air cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211823910U (en) |
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2019
- 2019-11-08 CN CN201921931391.3U patent/CN211823910U/en not_active Expired - Fee Related
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Granted publication date: 20201030 Termination date: 20211108 |