CN215831883U - Supercritical unit boiler drainage flash tank - Google Patents
Supercritical unit boiler drainage flash tank Download PDFInfo
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- CN215831883U CN215831883U CN202121206574.6U CN202121206574U CN215831883U CN 215831883 U CN215831883 U CN 215831883U CN 202121206574 U CN202121206574 U CN 202121206574U CN 215831883 U CN215831883 U CN 215831883U
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Abstract
The utility model relates to a supercritical unit boiler drainage flash tank, wherein a drainage inlet is arranged at the middle lower part of a cylinder, a manhole is arranged at the middle upper part of the cylinder, a water outlet is arranged at the bottom of the cylinder, an air exhaust pipeline is arranged at the top of the cylinder, a pressure gauge is arranged on the air exhaust pipeline, a rotatable steam baffle is arranged inside the air exhaust pipeline, the area of the steam baffle is gradually increased from bottom to top in the air exhaust pipeline, extending parts are arranged at two sides of the steam baffle, a rotating shaft is arranged on the extending parts and penetrates through the pipe wall of the air exhaust pipeline, an adjusting head is arranged at one side of the rotating shaft and is arranged outside the air exhaust pipeline, a limiting block is arranged above one side of the steam baffle and is arranged on the inner wall of the air exhaust pipeline, a flow guide part is arranged at the lower surface of the steam baffle, and the flow guide part is arranged in a left-high-right low mode; the utility model has the advantages of effectively recovering boiler drainage, reducing exhaust steam loss and improving the operating economy of the unit.
Description
Technical Field
The utility model relates to the technical field of thermal power generating unit boiler drainage, in particular to a supercritical unit boiler drainage flash tank.
Background
The design of the boiler drain flash tank has the effects that when the drain of a boiler and other auxiliary systems with certain pressure enters the drain flash tank in the startup and shutdown stage and during the heating pipe and soot blowing, the pressure of the drain of the boiler and other auxiliary systems is reduced through the flash tank, part of the drain is vaporized into steam, unvaporized high-temperature water is cooled and then is sent to the drain tank for use, so that the heat loss and steam-water loss can be reduced, the unvaporized steam is discharged into the atmosphere through the drain flash tank to an empty pipe, and after the existing unit operates for a long time, the part of the drain pipeline valve entering the drain flash tank has internal leakage with different degrees, so that during the operation of the unit, a large amount of the leaked drain enters the drain flash tank, the part of the unvaporized drain is not vaporized and is directly discharged into the atmosphere, the steam-water loss is increased, and the operation economy of a power plant is reduced; therefore, it is very necessary to provide a supercritical unit boiler drain flash tank which can effectively recover boiler drain, reduce exhaust steam loss and improve unit operation economy.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the drainage flash tank of the supercritical unit boiler, which can effectively recover boiler drainage, reduce exhaust steam loss and improve the running economy of the unit.
The purpose of the utility model is realized as follows: the hydrophobic flash tank of the supercritical unit boiler comprises a cylinder body, wherein a hydrophobic inlet is arranged at the middle lower part of the cylinder body, a manhole is arranged at the middle upper part of the cylinder body, a water outlet is arranged at the bottom of the cylinder body, an air exhaust pipeline is arranged at the top of the cylinder body, a pressure gauge is arranged on the air exhaust pipeline, a rotatable steam baffle is arranged inside the air exhaust pipeline, the area of the steam baffle is gradually increased from bottom to top in the air exhaust pipeline, extending parts are arranged at two sides of the steam baffle, a rotating shaft is arranged on the extending parts and penetrates through the pipe wall of the air exhaust pipeline, an adjusting head is arranged at one side of the rotating shaft and is arranged outside the air exhaust pipeline, a limiting block is arranged above one side of the steam baffle and is arranged on the inner wall of the air exhaust pipeline, and a flow guide part is arranged at the lower surface of the steam baffle, the flow guide part is arranged in a mode of being high at the left side and low at the right side.
Every 0.5 meters of inside every interval of empty calandria installs a steam baffle additional, and steam baffle is by socle to the crown of pipe, and the area increases gradually, installs the steam baffle that occupies pipeline cross-sectional area one fifth additional when empty calandria bottom promptly, installs the steam baffle that occupies pipeline three fifth cross-sectional area additional when empty calandria top.
The rotating shaft is positioned on the diameter of the cross section of the empty exhaust pipe, when the area of the steam baffle is smaller than half of the empty exhaust pipe, the steam baffle is provided with an extension part, and the rotating shaft is fixedly connected with the steam baffle through the extension part; when the area of the steam baffle is larger than half of the empty exhaust pipe, the rotating shaft is arranged inside the steam baffle and rotates through the pipe wall of the empty exhaust pipe.
The diversion part can enable the condensed water to be drawn close to one side of the steam baffle and drip, and the other steam baffle below the diversion part can not influence the falling of the condensed water on the upper part, so that the water collection is more convenient.
The steam baffle is contacted with the inner wall of the emptying exhaust pipeline, and the steam baffle can be in a horizontal position through friction force between the steam baffle and the emptying exhaust pipeline.
The adjusting head can drive the rotating shaft and the steam baffle to rotate, so that the steam baffle can rotate to a vertical position.
The utility model has the beneficial effects that: the utility model adds a steam baffle plate in the empty exhaust pipe of a boiler drain flash tank at intervals of 0.5 m, the area of the added steam baffle plate is gradually increased from the bottom of a pipe to the top of the pipe, namely, the steam baffle plate occupying one fifth of the cross section area of the pipe is added at the bottom of the empty exhaust pipe, so as to ensure that the steam discharged by the drain flash tank fully flows and does not cause the pressure building of the pipe, the steam baffle plate occupying three fifths of the cross section area of the pipe is added at the top of the empty exhaust pipe, and the steam baffle plate is added to increase the residence time of the steam on the empty exhaust pipe on one hand and increase the on-way resistance of the steam in the pipe on the other hand, so as to reduce the steam energy, finally, the steam in the empty exhaust pipe entering the drain flash tank is completely condensed into water and then enters the drain flash tank to be completely recycled, thereby reducing the steam loss. The air exhaust pipeline is also provided with a pressure gauge, when the pressure in the air exhaust pipeline is overlarge, the steam baffle is in a vertical state by rotating the adjusting head, so that steam in the air exhaust pipeline can be smoothly exhausted, and the pressure intensity is reduced; the utility model has the advantages of effectively recovering boiler drainage, reducing exhaust steam loss and improving the operating economy of the unit.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the empty exhaust pipe.
Fig. 3 is a perspective view, a front view and a right side view, respectively, of the steam baffle of the present invention from top to bottom.
In the figure, the device comprises a cylinder body 1, a drainage inlet 3, a manhole 4, a water outlet 5, an air exhaust pipeline 6, a pressure gauge 7, a steam baffle 8, a rotating shaft 9, an extension part 10, an adjusting head 11, a limiting block 12 and a flow guide part.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, the hydrophobic flash tank of the supercritical unit boiler comprises a cylinder 1, a hydrophobic inlet 2 is arranged at the middle lower part of the cylinder 1, a manhole 3 is arranged at the middle upper part of the cylinder 1, a water outlet is arranged at the bottom of the cylinder 1, an air exhaust pipe 5 is arranged at the top of the cylinder 1, a pressure gauge 6 is arranged on the air exhaust pipe 5, a rotatable steam baffle 7 is arranged inside the air exhaust pipe 5, the area of the steam baffle 7 is gradually increased from bottom to top in the air exhaust pipe 5, extension parts 9 are arranged at two sides of the steam baffle 7, a rotating shaft 8 is arranged on the extension parts 9, the rotating shaft 8 penetrates through the pipe wall of the air exhaust pipe 5, an adjusting head 10 is arranged at one side of the rotating shaft 8, the adjusting head 10 is arranged outside the air exhaust pipe 5, and a limit block 11 is arranged above one side of the steam baffle 7, the limiting block 11 is arranged on the inner wall of the empty exhaust pipe 5, the lower surface of the steam baffle 7 is provided with a flow guide part 12, and the flow guide part 12 is arranged in a mode of being high at the left side and low at the right side.
The utility model is that a steam baffle 7 is additionally arranged in an empty exhaust pipe 5 of a boiler drain flash tank at intervals of 0.5 m, the additionally arranged steam baffle 7 is gradually increased in area from the bottom of a pipe to the top of the pipe, namely, the steam baffle 7 occupying one fifth of the cross section area of the pipe is additionally arranged at the bottom of the empty exhaust pipe 5, so that the steam discharged by the drain flash tank is ensured to fully flow and not to cause pressure building of the pipe, the steam baffle 7 occupying three fifths of the cross section area of the pipe is additionally arranged at the top of the empty exhaust pipe 5, and the purpose of additionally arranging the steam baffle is to increase the retention time of the steam on the empty exhaust pipe on one hand and increase the on the other hand the on-way resistance of the steam in the pipe to reduce the steam energy, so that the steam entering the empty exhaust pipe 6 of the drain flash tank is completely condensed into water and then enters the drain flash tank to be completely recycled, thereby reducing the steam loss. The pressure gauge 6 is also arranged on the empty exhaust pipe 5, when the pressure in the empty exhaust pipe 5 is overlarge, the steam baffle is in a vertical state by rotating the adjusting head 10, so that the steam in the empty exhaust pipe 5 can be smoothly discharged, and the pressure intensity is reduced; the utility model has the advantages of effectively recovering boiler drainage, reducing exhaust steam loss and improving the operating economy of the unit.
Example 2
As shown in fig. 1-3, the hydrophobic flash tank of the supercritical unit boiler comprises a cylinder 1, a hydrophobic inlet 2 is arranged at the middle lower part of the cylinder 1, a manhole 3 is arranged at the middle upper part of the cylinder 1, a water outlet is arranged at the bottom of the cylinder 1, an air exhaust pipe 5 is arranged at the top of the cylinder 1, a pressure gauge 6 is arranged on the air exhaust pipe 5, a rotatable steam baffle 7 is arranged inside the air exhaust pipe 5, the area of the steam baffle 7 is gradually increased from bottom to top in the air exhaust pipe 5, extension parts 9 are arranged at two sides of the steam baffle 7, a rotating shaft 8 is arranged on the extension parts 9, the rotating shaft 8 penetrates through the pipe wall of the air exhaust pipe 5, an adjusting head 10 is arranged at one side of the rotating shaft 8, the adjusting head 10 is arranged outside the air exhaust pipe 5, and a limit block 11 is arranged above one side of the steam baffle 7, the limiting block 11 is arranged on the inner wall of the empty exhaust pipe 5, the lower surface of the steam baffle 7 is provided with a flow guide part 12, and the flow guide part 12 is arranged in a mode of being high at the left side and low at the right side.
The steam baffle 7 is additionally arranged in the empty exhaust pipeline 5 at intervals of 0.5 m, the steam baffle 7 is gradually increased from the bottom of the pipeline to the top of the pipeline, namely the steam baffle 7 occupying one fifth of the cross section area of the pipeline is additionally arranged at the bottom of the empty exhaust pipeline 5, the steam baffle 7 occupying three fifths of the cross section area of the pipeline is additionally arranged at the top of the empty exhaust pipeline 5, the rotating shaft 8 is positioned on the diameter of the cross section of the empty exhaust pipeline 5, when the area of the steam baffle 7 is smaller than one half of the empty exhaust pipeline 5, the steam baffle 7 is provided with an extension part 9, and the rotating shaft 8 is fixedly connected with the steam baffle 7 through the extension part 9; when the area of steam baffle 7 is greater than half to the air exhaust pipe way 5, the pivot sets up inside steam baffle 7, and rotate through to the air exhaust pipe way 5 pipe wall, water conservancy diversion portion can make the comdenstion water draw close and drip to steam baffle 7 one side, another steam baffle 7 of below can not influence the whereabouts of upper portion comdenstion water, it is more convenient to collect water, steam baffle 7 and the contact of 5 inner walls to the air exhaust pipe way, and make steam baffle 7 can be in horizontal position through the frictional force between the two, it can drive pivot 8 and steam baffle 7 rotation to adjust head 10, thereby can make steam baffle 7 change to vertical position.
The utility model is that a steam baffle 7 is additionally arranged in an empty exhaust pipe 5 of a boiler drain flash tank at intervals of 0.5 m, the additionally arranged steam baffle 7 is gradually increased in area from the bottom of a pipe to the top of the pipe, namely, the steam baffle 7 occupying one fifth of the cross section area of the pipe is additionally arranged at the bottom of the empty exhaust pipe 5, so that the steam discharged by the drain flash tank is ensured to fully flow and not to cause pressure building of the pipe, the steam baffle 7 occupying three fifths of the cross section area of the pipe is additionally arranged at the top of the empty exhaust pipe 5, and the purpose of additionally arranging the steam baffle is to increase the retention time of the steam on the empty exhaust pipe on one hand and increase the on the other hand the on-way resistance of the steam in the pipe to reduce the steam energy, so that the steam entering the empty exhaust pipe 6 of the drain flash tank is completely condensed into water and then enters the drain flash tank to be completely recycled, thereby reducing the steam loss. The pressure gauge 6 is also arranged on the empty exhaust pipe 5, when the pressure in the empty exhaust pipe 5 is overlarge, the steam baffle is in a vertical state by rotating the adjusting head 10, so that the steam in the empty exhaust pipe 5 can be smoothly discharged, and the pressure intensity is reduced; the utility model has the advantages of effectively recovering boiler drainage, reducing exhaust steam loss and improving the operating economy of the unit.
Claims (6)
1. Hydrophobic flash vessel of supercritical unit boiler, it includes the barrel, its characterized in that: a drainage inlet is arranged at the middle lower part of the cylinder body, a manhole is arranged at the middle upper part of the cylinder body, a water outlet is arranged at the bottom of the cylinder body, an empty exhaust pipe is arranged at the top of the cylinder body, a pressure gauge is arranged on the empty exhaust pipe, a rotatable steam baffle is arranged inside the empty exhaust pipe, the steam baffle plate is gradually enlarged from bottom to top in the empty exhaust pipeline, extension parts are arranged on two sides of the steam baffle plate, the extension part is provided with a rotating shaft which is arranged on the pipe wall of the empty exhaust pipe in a penetrating way, one side of the rotating shaft is provided with an adjusting head which is arranged outside the empty exhaust pipe, the steam baffle is characterized in that a limiting block is arranged above one side of the steam baffle, the limiting block is arranged on the inner wall of the air exhaust pipeline, and a flow guide part is arranged on the lower surface of the steam baffle and is arranged in a left-high-right mode.
2. The hydrophobic flash tank of supercritical unit boiler of claim 1, characterized by: every 0.5 meters of inside every interval of to the air exhaust pipe installs a steam baffle additional, and steam baffle is by the socle to the crown of pipe, and the area increases gradually, installs the steam baffle that occupies pipeline cross-sectional area one fifth additional when to the air exhaust pipe way bottom promptly, installs the steam baffle that occupies pipeline three fifths cross-sectional area additional when to the air exhaust pipe way top.
3. The hydrophobic flash tank of supercritical unit boiler of claim 2, characterized by: the rotating shaft is positioned on the diameter of the cross section of the empty exhaust pipe, when the area of the steam baffle is smaller than half of the empty exhaust pipe, the steam baffle is provided with an extension part, and the rotating shaft is fixedly connected with the steam baffle through the extension part; when the area of the steam baffle is larger than half of the empty exhaust pipe, the rotating shaft is arranged inside the steam baffle and rotates through the pipe wall of the empty exhaust pipe.
4. The hydrophobic flash tank of supercritical unit boiler of claim 1, characterized by: the diversion part can enable the condensed water to be drawn close to one side of the steam baffle and drip, and the other steam baffle below the diversion part cannot influence the falling of the condensed water on the upper part, so that the water collection is more convenient.
5. The hydrophobic flash tank of supercritical unit boiler of claim 1, characterized by: the steam baffle is in contact with the inner wall of the opposite air exhaust pipeline, and the steam baffle can be positioned in a horizontal position through friction force between the steam baffle and the opposite air exhaust pipeline.
6. The hydrophobic flash tank of supercritical unit boiler of claim 1, characterized by: the adjusting head can drive the rotating shaft and the steam baffle to rotate, so that the steam baffle can rotate to a vertical position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206574.6U CN215831883U (en) | 2021-06-01 | 2021-06-01 | Supercritical unit boiler drainage flash tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206574.6U CN215831883U (en) | 2021-06-01 | 2021-06-01 | Supercritical unit boiler drainage flash tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215831883U true CN215831883U (en) | 2022-02-15 |
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ID=80189399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121206574.6U Active CN215831883U (en) | 2021-06-01 | 2021-06-01 | Supercritical unit boiler drainage flash tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215831883U (en) |
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2021
- 2021-06-01 CN CN202121206574.6U patent/CN215831883U/en active Active
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