CN112539406A - A discharge flash tank for power plant discharges sewage - Google Patents
A discharge flash tank for power plant discharges sewage Download PDFInfo
- Publication number
- CN112539406A CN112539406A CN202011416509.6A CN202011416509A CN112539406A CN 112539406 A CN112539406 A CN 112539406A CN 202011416509 A CN202011416509 A CN 202011416509A CN 112539406 A CN112539406 A CN 112539406A
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- Prior art keywords
- discharge
- water
- flash tank
- pipe
- tank body
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- 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.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 133
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000003651 drinking water Substances 0.000 claims abstract description 6
- 235000020188 drinking water Nutrition 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 13
- 238000005086 pumping Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of discharge flash tanks, in particular to a discharge flash tank for sewage discharge of a power plant, wherein water enters a discharge flash tank body through a water inlet pipe to be evaporated, so that the water and steam are separated, the steam is cooled and liquefied into water drops through a mixing box during the transportation through a condenser, the water drops enter a water pump, the liquefied steam is discharged into the discharge flash tank body through the transmission of a water pumping pipe and the cooperation of a water delivery pipe and an exhaust pipe, and when a system detects the normal value of the steam, the steam can be recovered into a thermodynamic system through a system control electromagnetic valve, so that the thermodynamic loss is reduced; still including discharging flash vessel body, inlet tube, drain pipe, condenser, mixing box, water pump, drinking-water pipe, delivery pipe, blast pipe and blast pipe, discharge the flash vessel body and be provided with the cavity, the inlet tube is installed on the left end of discharging the flash vessel body to the inlet tube communicates with the cavity of discharging the flash vessel body, and the blast pipe communicates with the cavity of discharging the flash vessel body.
Description
Technical Field
The invention relates to the technical field of discharge flash tanks, in particular to a discharge flash tank for sewage discharge of a power plant.
Background
In the current power plant system design, a continuous blowdown flash tank is also called as a continuous blowdown expander and is connected with a continuous blowdown port of a boiler, the continuous blowdown flash tank has the functions of expanding the blowdown water of the boiler to evaporate steam and separating the steam from the sewage, the separated steam can be recycled to a thermodynamic system, and the unevaporated blowdown water can be sent to a blowdown cooler to heat softened water and the like; at present, most power plants directly discharge part of low-pressure saturated steam in a continuous blowdown flash tank to the atmosphere, so that heat loss of the power plants is caused, and meanwhile, the surrounding environment is also influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a discharge flash tank for sewage discharge of a power plant, which is used for separating water from steam, cooling and liquefying the steam through a mixing box during the process of conveying the steam through a condenser to form water drops, conveying the water drops into a water pump through a water pumping pipe, discharging the liquefied steam into the discharge flash tank body through the cooperation of a water conveying pipe and an exhaust pipe, and recovering the steam into a thermodynamic system through a system control electromagnetic valve when the system detects the normal value of the steam so as to reduce the thermodynamic loss.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which also comprises a discharge flash tank body, a water inlet pipe, a water discharge pipe, a condenser, a mixing box, a water pump, a water pumping pipe, a water supply pipe, an exhaust pipe and an exhaust pipe, wherein the discharge flash tank body is provided with a cavity, the water inlet pipe is arranged at the left end of the discharge flash tank body, the water inlet pipe is communicated with the cavity of the discharge flash tank body, the water discharge pipe is arranged at the bottom end of the cavity of the discharge flash tank body, the water discharge pipe is communicated with the cavity of the discharge flash tank body, the condenser is communicated with the cavity of the discharge flash tank body, the top end of the condenser is communicated with the mixing box, the water pump is provided with a cavity, the bottom end of the condenser is communicated with the cavity of the water pump, the water pumping pipe is arranged above, the blast pipe is communicated with the cavity of the emission flash tank body and is provided with an electromagnetic valve.
The invention discloses a discharge flash tank for sewage discharged by a power plant, which further comprises a steam-water separator and a filter screen, wherein the steam-water separator is arranged in a cavity of the discharge flash tank body, the steam-water separator is positioned above a water inlet pipe, the filter screen is arranged in the cavity of the discharge flash tank body, and the filter screen is positioned below the water inlet pipe.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises a refrigerator, wherein the refrigerator is communicated with a condenser, and the refrigerator is positioned on the left side of a mixing box.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises two groups of support frames, a connecting pipe and a filter, wherein the left ends of the two groups of support frames are connected with the right end of a discharge flash tank body, the right ends of the two groups of support frames are connected with the left end of a water pump, a cavity of the water pump is communicated with the cavity of the discharge flash tank body through the connecting pipe, the filter is arranged in the cavity of the water pump, and the filter is positioned between a condenser and a water delivery pipe which extend into the water pump.
The invention discloses a discharge flash tank for sewage discharged by a power plant, which further comprises a flow guide filter plate and a steam detection device, wherein the flow guide filter plate is arranged at the top end of the filter screen, the steam detection device is arranged at the top end of a cavity of a discharge flash tank body, and the steam detection device is communicated with an exhaust pipe.
The invention discloses a discharge flash tank for sewage discharge of a power plant, which further comprises a heat exchanger and a water outlet pipe, wherein the heat exchanger is arranged in a cavity of a discharge flash tank body and is positioned below a steam-water separator, and the heat exchanger is communicated with the exhaust pipe and the water outlet pipe.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises two groups of drain pipes, wherein the two groups of drain pipes are communicated with a cavity of a water pump, are positioned on the left side and the right side of a filter, and are provided with valves.
The invention discloses a discharge flash tank for sewage discharge of a power plant, which further comprises a pressure meter and a pressure relief valve, wherein the pressure meter and the pressure relief valve are arranged on a discharge flash tank body.
Compared with the prior art, the invention has the beneficial effects that: water gets into through the inlet tube and discharges this internal evaporation of flash tank, makes water and steam separation, and steam cools off liquefaction through the mixing box during carrying through the condenser and drips and get into the water pump in, through the drinking-water pipe transmission, through the steam discharge after delivery pipe and blast pipe cooperation make the liquefaction discharge the flash tank originally internally, through the system control solenoid valve when the system detects steam normal value, makes steam go in recoverable thermodynamic system, reduces the heating power loss.
Drawings
FIG. 1 is a schematic cross-sectional structural view of the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is an enlarged view of the filter and the flow guiding filter plate;
in the drawings, the reference numbers: 1. discharging the flash tank body; 2. a water inlet pipe; 3. a drain pipe; 4. an air outlet pipe; 5. a condenser; 6. a mixing box; 7. a water pump; 8. a water pumping pipe; 9. a water supply pipe; 10. an exhaust pipe; 11. a steam-water separator; 12. a filter screen; 13. a refrigerator; 14. a support frame; 15. a connecting pipe; 16. a filter; 17. a flow guide filter plate; 18. a vapor detection device; 19. a heat exchanger; 20. a water outlet pipe; 21. a blow-off pipe; 22. a valve; 23. a pressure gauge; 24. and (4) releasing the valve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with 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.
As shown in fig. 1 to 3, the present invention relates to a discharge flash tank for sewage discharged by a power plant, further comprising a discharge flash tank body 1, a water inlet pipe 2, a water outlet pipe 3, a condenser 4, a mixing tank 5, a water pump 6, a water pumping pipe 7, a water supply pipe 8, an air exhaust pipe 9 and an air exhaust pipe 10, wherein the discharge flash tank body 1 is provided with a chamber, the water inlet pipe 2 is installed at the left end of the discharge flash tank body 1, the water inlet pipe 2 is communicated with the chamber of the discharge flash tank body 1, the water outlet pipe 3 is installed at the bottom end of the chamber of the discharge flash tank body 1, the water outlet pipe 3 is communicated with the chamber of the discharge flash tank body 1, the condenser 4 is communicated with the chamber of the discharge flash tank body 1, the top end of the condenser 4 is communicated with the mixing tank 5, the water pump 6 is provided with a chamber, the bottom, the output end and the input end of the water pumping pipe 7 are communicated with the water pump 6 and the cavity of the discharge flash tank body 1 through a water delivery pipe 8 and an exhaust pipe 9, an exhaust pipe 10 is communicated with the cavity of the discharge flash tank body 1, and the exhaust pipe 10 is provided with an electromagnetic valve; water gets into through inlet tube 2 and discharges in the flash tank body 1 and evaporate, make water and steam separation, steam cools off liquefaction through mixing box 5 during carrying through condenser 4 and drips and get into water pump 6 in, through the transmission of drinking-water pipe 7, steam after 8 and the 9 cooperations of blast pipe make the liquefaction is discharged and is discharged flash tank body 1 in, through the system control solenoid valve when the system detects steam normal value, make steam recoverable go among the thermodynamic system, reduce the heating power loss.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises a steam-water separator 11 and a filter screen 12, wherein the steam-water separator 11 is arranged in a cavity of the discharge flash tank body 1, the steam-water separator 11 is positioned above a water inlet pipe 2, the filter screen 12 is arranged in the cavity of the discharge flash tank body 1, and the filter screen 12 is positioned below the water inlet pipe 2; accelerate and improve steam-water separation efficiency through catch water 11, make the better transport through condenser 4 of the steam that the evaporation came out, filter impurity through filter screen 12, discharge through drain pipe 3.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises a refrigerator 13, wherein the refrigerator 13 is communicated with a condenser 4, and the refrigerator 13 is positioned at the left side of a mixing box 5; the steam is cooled in advance by the refrigerator 13, and the convenient mixing box 5 is liquefied.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises two groups of support frames 14, a connecting pipe 15 and a filter 16, wherein the left ends of the two groups of support frames 14 are connected with the right end of a discharge flash tank body 1, the right ends of the two groups of support frames 14 are connected with the left end of a water pump 6, a cavity of the water pump 6 is communicated with the cavity of the discharge flash tank body 1 through the connecting pipe 15, the filter 16 is arranged in the cavity of the water pump 6, and the filter 16 is positioned between a condenser 4 extending into the water pump 6 and a water delivery pipe 8; through two sets of support frames 14 convenience fixed water pump 6, unfiltered water is carried in water pump 6 through connecting pipe 15 and is mixed with liquefied steam and filter through filter 16, carries again through the transmission of drinking-water pipe 7 and carries out the secondary evaporation in discharging flash tank body 1, improves the evaporation effect.
The invention relates to a discharge flash tank for sewage discharged by a power plant, which further comprises a diversion filter plate 17 and a steam detection device 18, wherein the diversion filter plate 17 is arranged at the top end of a filter screen 12, the steam detection device 18 is arranged at the top end of a cavity of a discharge flash tank body 1, and the steam detection device 18 is communicated with an exhaust pipe 10; the water which is not completely filtered is conveniently conveyed through the connecting pipe 15 in the water conveying pump 6 through the flow guide filter plate 17, the steam detection accuracy is improved through the steam detection device 18, and the system is convenient to control and discharge.
The invention discloses a discharge flash tank for sewage discharge of a power plant, which further comprises a heat exchanger 9 and a water outlet pipe 20, wherein the heat exchanger 9 is arranged in a cavity of a discharge flash tank body 1 and is positioned below a steam-water separator 11, and the heat exchanger 9 is communicated with the exhaust pipe 9 and the water outlet pipe 20; the water conveyed in the water pump 6 is heated by the heat exchanger 9 and is discharged out through the water outlet pipe 20, so that the evaporation time is shortened.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which also comprises two groups of drain pipes 21, wherein the two groups of drain pipes 21 are communicated with a cavity of a water pump 6, the two groups of drain pipes 21 are positioned on the left and right sides of a filter 16, and the two groups of drain pipes 21 are both provided with valves 22; the unfiltered water and the filtered water are separately discharged through two groups of drain pipes 21.
The invention relates to a discharge flash tank for sewage discharge of a power plant, which further comprises a pressure gauge 23 and a pressure relief valve 24, wherein the pressure gauge 23 and the pressure relief valve 24 are arranged on a discharge flash tank body 1; the pressure in the discharge flash tank body 1 can be conveniently observed through the pressure gauge 23 and the pressure release valve 24, and the pressure release is carried out, so that the safety is improved.
The invention relates to a discharge flash tank for sewage discharged by a power plant, which is characterized in that when in work, water firstly enters a discharge flash tank body 1 through a water inlet pipe 2 to be evaporated, then the water and steam are separated through a steam-water separator 11, the steam is cooled and liquefied into water drops through a mixing box 5 during the transportation through a condenser 4, then the water drops enter a water pump 6, then the water drops are filtered through a filter 16, the liquefied steam is heated and discharged into the discharge flash tank body 1 through a heat exchanger 9 through a water delivery pipe 8 and an exhaust pipe 9 in a matching way, when the system is matched with a steam detection device 18 to detect whether the steam is in a normal value, the steam can be recovered into a thermodynamic system through a system control electromagnetic valve, the evaporated water is matched with a filter screen 12 and a flow guide filter plate 17 to be filtered, and the water is.
The installation mode, the connection mode or the arrangement mode of the discharge flash tank for the sewage discharge of the power plant are common mechanical modes, and the installation mode, the connection mode or the arrangement mode can be implemented as long as the beneficial effects of the discharge flash tank can be achieved; the water pumping pipe 7 of the discharge flash tank for discharging sewage of the power plant is purchased from the market, and technicians in the industry only need to install and operate the water pumping pipe according to the attached operating instructions.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several 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 (8)
1. A discharge flash tank for sewage discharge of a power plant is characterized by further comprising a discharge flash tank body (1), a water inlet pipe (2), a water discharge pipe (3), a condenser (4), a mixing tank (5), a water pump (6), a water suction pipe (7), a water delivery pipe (8), an exhaust pipe (9) and an exhaust pipe (10), wherein the discharge flash tank body (1) is provided with a cavity, the water inlet pipe (2) is installed at the left end of the discharge flash tank body (1), the water inlet pipe (2) is communicated with the cavity of the discharge flash tank body (1), the water discharge pipe (3) is installed at the bottom end of the cavity of the discharge flash tank body (1), the water discharge pipe (3) is communicated with the cavity of the discharge flash tank body (1), the condenser (4) is communicated with the cavity of the discharge flash tank body (1), the top end of the condenser (4) is communicated with the mixing tank (5), water pump (6) are provided with the cavity, the bottom of condenser (4) and the cavity intercommunication of water pump (6), and the top in water pump (6) is installed in drinking-water pipe (7), and the output and the input of drinking-water pipe (7) pass through flow pipe (8) and blast pipe (9) and water pump (6) and the cavity intercommunication of discharging flash tank body (1), and blast pipe (10) are provided with the solenoid valve.
2. The discharge flash tank for sewage discharge of the power plant according to claim 1, further comprising a steam-water separator (11) and a filter screen (12), wherein the steam-water separator (11) is installed in the chamber of the discharge flash tank body (1), and the steam-water separator (11) is located above the water inlet pipe (2), the filter screen (12) is installed in the chamber of the discharge flash tank body (1), and the filter screen (12) is located below the water inlet pipe (2).
3. A discharge flash tank for sewage discharge at power plants according to claim 2, characterized in that it further comprises a refrigerator (13), the refrigerator (13) being in communication with the condenser (4) and the refrigerator (13) being located to the left of the mixing tank (5).
4. The discharge flash tank for sewage discharge of power plant according to claim 3, further comprising two sets of support frames (14), a connecting pipe (15) and a filter (16), wherein the left ends of the two sets of support frames (14) are connected with the right end of the discharge flash tank body (1), the right ends of the two sets of support frames (14) are connected with the left end of the water pump (6), the chamber of the water pump (6) is communicated with the chamber of the discharge flash tank body (1) through the connecting pipe (15), the filter (16) is installed in the chamber of the water pump (6), and the filter (16) is located between the condenser (4) and the water feeding pipe (8) extending into the water pump (6).
5. The discharge flash tank for sewage discharge of power plant according to claim 4, further comprising a flow guide filter plate (17) and a steam detection device (18), wherein the flow guide filter plate (17) is installed on the top end of the filter screen (12), the steam detection device (18) is installed on the chamber top end of the discharge flash tank body (1), and the steam detection device (18) is communicated with the exhaust pipe (10).
6. The discharge flash tank for sewage discharge of power plants according to claim 5, further comprising a heat exchanger (9) and an outlet pipe (20), wherein the heat exchanger (9) is installed in the chamber of the discharge flash tank body (1) below the steam-water separator (11), and the heat exchanger (9) is communicated with the exhaust pipe (9) and the outlet pipe (20).
7. The discharge flash tank for sewage discharge of power plant as claimed in claim 6, further comprising two sets of blow-off pipes (21), wherein the two sets of blow-off pipes (21) are communicated with the chamber of the water pump (6), and the two sets of blow-off pipes (21) are located at the left and right sides of the filter (16), and the two sets of blow-off pipes (21) are provided with valves (22).
8. The discharge flash vessel for sewage discharge of power plants according to claim 7, further comprising a pressure gauge (23) and a pressure relief valve (24), the pressure gauge (23) and the pressure relief valve (24) being mounted on the discharge flash vessel body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416509.6A CN112539406B (en) | 2020-12-07 | 2020-12-07 | Discharge expander for discharging sewage of power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416509.6A CN112539406B (en) | 2020-12-07 | 2020-12-07 | Discharge expander for discharging sewage of power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112539406A true CN112539406A (en) | 2021-03-23 |
| CN112539406B CN112539406B (en) | 2023-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011416509.6A Active CN112539406B (en) | 2020-12-07 | 2020-12-07 | Discharge expander for discharging sewage of power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112539406B (en) |
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| DE102009011953A1 (en) * | 2009-03-10 | 2010-10-07 | Jumag Dampferzeuger Gmbh | Device for draining low pressure hot water, particularly blow-down water or initial condensation, from boiler of steam generator, has container and temperature sensor for detecting temperature of water in water seal |
| EP2722590A1 (en) * | 2012-03-30 | 2014-04-23 | Spirax-Sarco Limited | Steam plant and method of operating the same |
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| CN210267441U (en) * | 2019-08-06 | 2020-04-07 | 山西易通环能科技集团有限公司 | Recycling device for waste heat of periodic blowdown and continuous blowdown of power plant boiler |
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| JP2004093343A (en) * | 2002-08-30 | 2004-03-25 | Mitsubishi Heavy Ind Ltd | Blowdown recovery system of steam generating facility |
| DE102009011953A1 (en) * | 2009-03-10 | 2010-10-07 | Jumag Dampferzeuger Gmbh | Device for draining low pressure hot water, particularly blow-down water or initial condensation, from boiler of steam generator, has container and temperature sensor for detecting temperature of water in water seal |
| EP2722590A1 (en) * | 2012-03-30 | 2014-04-23 | Spirax-Sarco Limited | Steam plant and method of operating the same |
| CN204554783U (en) * | 2015-04-08 | 2015-08-12 | 邯钢集团邯宝钢铁有限公司 | A kind of exhaust steam of electric power plant re-use device |
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| Publication number | Publication date |
|---|---|
| CN112539406B (en) | 2023-12-19 |
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