CN112539406B - Discharge expander for discharging sewage of power plant - Google Patents
Discharge expander for discharging sewage of power plant Download PDFInfo
- Publication number
- CN112539406B CN112539406B CN202011416509.6A CN202011416509A CN112539406B CN 112539406 B CN112539406 B CN 112539406B CN 202011416509 A CN202011416509 A CN 202011416509A CN 112539406 B CN112539406 B CN 112539406B
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- water
- discharge
- pipe
- steam
- cavity
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- 238000007599 discharging Methods 0.000 title claims abstract description 31
- 239000010865 sewage Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000001514 detection method Methods 0.000 claims description 11
- 238000001704 evaporation Methods 0.000 abstract description 6
- 230000008020 evaporation Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
Landscapes
- 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 expanders, in particular to a discharge expander for discharging sewage of a power plant, which is characterized in that water enters a discharge expander body through a water inlet pipe for evaporation to separate water from steam, the steam is cooled and liquefied through a condenser during transportation through an air outlet pipe to enter a mixing box, the liquefied steam is discharged into the discharge expander body through the cooperation of a water suction pipe and a water delivery pipe by means of water pump transmission, and when a system detects a normal value of the steam, the steam can be recycled into a thermodynamic system through a system control electromagnetic valve, so that thermodynamic loss is reduced; still including discharging the dilatation ware body, inlet tube, drain pipe, outlet duct, condenser, mixing box, water pump, drinking-water pipe, water supply pipe and blast pipe, the dilatation ware body of discharging is provided with the cavity, and the inlet tube is installed on the left end of discharging the dilatation ware body to the inlet tube communicates with the cavity of discharging the dilatation ware body, and the blast pipe communicates with the cavity of discharging the dilatation ware body.
Description
Technical Field
The invention relates to the technical field of discharge expanders, in particular to a discharge expander for discharging sewage in a power plant.
Background
In the current power plant system design, a continuous blowdown flash tank is also called 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 blowdown water, the separated steam can be recycled to a thermodynamic system, and the blowdown water which is not evaporated can be sent to a blowdown cooler to heat softened water and the like; at present, most power plants choose to directly discharge part of low-pressure saturated steam in a continuous blowdown flash vessel to the atmosphere, so that heat loss of the power plants is caused, and the surrounding environment is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the discharging expansion device for the power plant, which is characterized in that water enters the discharging expansion device body through the water inlet pipe to evaporate, so that the water is separated from steam, the steam is cooled and liquefied into water drops through the mixing box to enter the water pump during the conveying period of the condenser, the water drops are driven through the water pumping pipe, the liquefied steam is discharged into the discharging expansion device body through the matching of the water pumping pipe and the exhaust pipe, and when the system detects the normal value of the steam, the steam can be recycled into the thermodynamic system through the system control electromagnetic valve, so that the thermodynamic loss is reduced.
The invention relates to a discharge expansion vessel for discharging sewage of a power plant, which further comprises a discharge expansion vessel body, a water inlet pipe, a water outlet pipe, an air outlet pipe, a condenser, a mixing box, a water pump, a water suction pipe, a water supply pipe and an air outlet pipe, wherein the discharge expansion vessel body is provided with a cavity;
the device comprises a filter screen, a steam detection device, a discharge expansion vessel body, a discharge pipe and a control valve, wherein the filter screen is arranged at the top end of the filter screen;
the heat exchanger is arranged in the cavity of the discharge expansion vessel body and positioned below the steam-water separator, and the heat exchanger is communicated with the water supply pipe and the water outlet pipe.
The invention relates to a discharge expansion tank for discharging sewage of a power plant, which also comprises a steam-water separator and a filter screen, wherein the steam-water separator is arranged in a cavity of the discharge expansion tank body, the steam-water separator is positioned above a water inlet pipe, the filter screen is arranged in the cavity of the discharge expansion tank body, and the filter screen is positioned below the water inlet pipe.
The invention relates to a discharge expansion tank for discharging sewage in a power plant, which also comprises a refrigerator, wherein the refrigerator is communicated with an air outlet pipe, and is positioned at the left side of a condenser.
The invention relates to a discharge expansion vessel for discharging sewage of a power plant, which further comprises two groups of support frames, connecting pipes and filters, wherein the left ends of the two groups of support frames are connected with the right end of a discharge expansion vessel body, the right ends of the two groups of support frames are connected with the left end of a mixing box, the cavity of the mixing box is communicated with the cavity of the discharge expansion vessel body through the connecting pipes, the filters are arranged in the cavity of the mixing box, and the filters are positioned between an air outlet pipe and a water pumping pipe which extend into the mixing box.
The invention relates to a discharge expansion tank for discharging sewage of a power plant, which also comprises two groups of sewage pipes, wherein the two groups of sewage pipes are communicated with a cavity of a mixing box, and are positioned at the left side and the right side of a filter, and the two groups of sewage pipes are provided with valves.
The invention relates to a discharge expansion vessel for discharging sewage of a power plant, which also comprises a pressure gauge and a pressure relief valve, wherein the pressure gauge and the pressure relief valve are arranged on a discharge expansion vessel body.
Compared with the prior art, the invention has the beneficial effects that: the water enters the discharge expansion vessel body through the water inlet pipe to evaporate, so that the water and the steam are separated, the steam is cooled and liquefied into water drops through the condenser during the conveying period through the air outlet pipe to enter the mixing box, the liquefied steam is discharged into the discharge expansion vessel body through the matching of the water suction pipe and the water delivery pipe through the water pump transmission, and when the system detects the normal value of the steam, the steam can be recycled into the thermodynamic system through the system control electromagnetic valve, so that the thermodynamic loss is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;
FIG. 3 is a schematic diagram of a filter and filter plate link enlarged structure;
the reference numerals in the drawings: 1. a discharge expander 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 guiding filter plate; 18. a steam detection device; 19. a heat exchanger; 20. a water outlet pipe; 21. a blow-down pipe; 22. a valve; 23. a pressure gauge; 24. and a pressure release valve.
Description of the embodiments
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the discharge flash tank for discharging sewage of a power plant of the present invention further comprises a discharge flash tank body 1, a water inlet pipe 2, a water outlet pipe 3, a gas outlet pipe 4, a condenser 5, a mixing tank 6, a water pump 7, a water suction pipe 8, a water supply pipe 9 and a gas outlet pipe 10, the discharge flash tank body 1 is provided with a chamber, the water inlet pipe 2 is installed on the left end of the discharge flash tank body 1, and the water inlet pipe 2 is communicated with the chamber of the discharge flash tank body 1, the water outlet pipe 3 is installed on the bottom end of the chamber of the discharge flash tank body 1, and the water outlet pipe 3 is communicated with the chamber of the discharge flash tank body 1, the gas outlet pipe 4 is communicated with the chamber of the discharge flash tank body 1, the top end of the gas outlet pipe 4 is communicated with the condenser 5, the mixing tank 6 is provided with a chamber, the bottom end of the gas outlet pipe 4 is communicated with the chamber of the mixing tank 6, the water pump 7 is installed above the mixing tank 6, the output end and the input end of the water pump 7 are communicated with the chamber of the discharge flash tank 1 and the water supply pipe 9 through the water supply pipe 8 and the water supply pipe 10, and the chamber 10 is communicated with the chamber of the discharge flash tank 1, and electromagnetic valve 10 is provided with the electromagnetic valve 10; the water enters the discharge expansion vessel body 1 through the water inlet pipe 2 for evaporation, so that the water and the steam are separated, the steam is cooled and liquefied into water drops through the condenser 5 during the conveying period through the air outlet pipe 4, the water drops enter the mixing box 6, the water pump 7 is used for transmission, the liquefied steam is discharged into the discharge expansion vessel body 1 through the matching of the water suction pipe 8 and the water delivery pipe 9, and when the system detects the normal value of the steam, the steam can be recycled into a thermodynamic system through the system control electromagnetic valve, so that the thermodynamic loss is reduced.
The invention relates to a discharge expansion tank for discharging sewage of a power plant, which also comprises a steam-water separator 11 and a filter screen 12, wherein the steam-water separator 11 is arranged in a cavity of a discharge expansion 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 expansion tank body 1, and the filter screen 12 is positioned below the water inlet pipe 2; the steam-water separator 11 accelerates and improves the steam-water separation efficiency, so that the evaporated steam is better conveyed through the condenser 4, impurities are filtered through the filter screen 12, and the evaporated steam is discharged through the drain pipe 3.
The invention is used for the discharge expander of the power plant discharge sewage, also include the refrigerator 13, the refrigerator 13 communicates with condenser 4, and the refrigerator 13 locates at the left of condenser 5; the steam is cooled in advance by the refrigerator 13, and the convenient condenser 5 is liquefied.
The invention relates to a discharge expansion tank for discharging sewage 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 expansion 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 expansion 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 and a water supply pipe 8 which extend into the water pump 6; the mixing box 6 is conveniently fixed through the two groups of support frames 14, unfiltered water is conveyed into the mixing box 6 through the connecting pipe 15 and is mixed with liquefied steam to be filtered through the filter 16, and the filtered water is conveyed into the discharge expansion vessel body 1 again through the transmission of the water pump 7 to be subjected to secondary evaporation, so that the evaporation effect is improved.
The invention relates to a discharge expansion vessel for discharging sewage of a power plant, which also comprises a flow guide filter plate 17 and a steam detection device 18, wherein the flow guide 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 expansion vessel body 1, and the steam detection device 18 is communicated with an exhaust pipe 10; the water which is not completely filtered is convenient to pass through the flow guide filter plate 17, the water is convenient to pass through the connecting pipe 15 and is conveyed into the mixing box 6, the steam detection accuracy is improved through the steam detection device 18, and the system control emission is convenient.
The invention is used for the discharge expander of the power plant to discharge the sewage, also include heat exchanger 19 and outlet pipe 20, the heat exchanger 19 is installed in the cavity of the body 1 of the discharge expander and located under the steam-water separator 11, and the heat exchanger 19 communicates with blast pipe 9 and outlet pipe 20; the water conveyed in the mixing box 6 is heated by the heat exchanger 19 and discharged by the water outlet pipe 20, so that the evaporation time is shortened.
The invention relates to a discharge container for discharging sewage 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 mixing box 6, the two groups of drain pipes 21 are positioned at the left side and the right side of a filter 16, and the two groups of drain pipes 21 are provided with valves 22; the unfiltered water and the filtered water are separately discharged through the two sets of drain pipes 21, respectively.
The invention relates to a discharge expander for discharging sewage of a power plant, which also 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 expander body 1; the pressure gauge 23 and the pressure relief valve 24 are used for conveniently observing the pressure in the discharge expansion vessel body 1 and relieving the pressure, so that the safety is improved.
When the discharge expansion tank for discharging sewage of a power plant works, firstly, water enters the discharge expansion tank body 1 through the water inlet pipe 2 for evaporation, then water and steam are separated through the steam-water separator 11, the steam is cooled and liquefied into water drops through the condenser 5 during conveying through the air outlet pipe 4 and enters the mixing tank 6, then the water drops are filtered through the filter 16, the water drops are driven through the water pump 7, the liquefied steam is heated and discharged into the discharge expansion tank body 1 through the heat exchanger 19 through the cooperation of the water suction pipe 8 and the water delivery pipe 9, when the system is matched with the steam detection device 18 to detect whether the steam is normal, the steam can be recycled into a thermodynamic system through the system control electromagnetic valve, and the evaporated water is matched and filtered through the filter screen 12 and the diversion filter plate 17 and discharged through the water discharge pipe 3.
The installation mode, the connection mode or the setting mode of the discharge expansion tank for discharging sewage of the power plant are common mechanical modes, and the discharge expansion tank can be implemented as long as the beneficial effects can be achieved; the suction pipe 7 of the discharge diffuser for discharging sewage from a power plant of the present invention is purchased on the market, and the person skilled in the art only needs to install and operate according to the attached instruction.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. A discharge expansion vessel for discharging sewage of a power plant is characterized by further comprising a discharge expansion vessel body (1), a water inlet pipe (2), a water discharge pipe (3), an air outlet pipe (4), a condenser (5), a mixing box (6), a water pump (7), a water suction pipe (8), a water supply pipe (9) and an exhaust pipe (10), wherein the discharge expansion vessel body (1) is provided with a cavity, the water inlet pipe (2) is arranged at the left end of the discharge expansion vessel body (1), the water inlet pipe (2) is communicated with the cavity of the discharge expansion vessel body (1), the water discharge pipe (3) is arranged at the bottom end of the cavity of the discharge expansion vessel body (1), the water outlet pipe (4) is communicated with the cavity of the discharge expansion vessel body (1), the top end of the air outlet pipe (4) is communicated with the condenser (5), the mixing box (6) is provided with the cavity, the bottom end of the air outlet pipe (4) is communicated with the cavity of the mixing box (6), the water pump (7) is arranged above the mixing box (6), the output end and the input end of the water pump (7) are communicated with the cavity of the discharge expansion vessel body (1) through the water suction pipe (8) and the water supply pipe (9) are communicated with the cavity of the discharge expansion vessel (1), the exhaust pipe (10) is provided with an electromagnetic valve;
the device further comprises a steam-water separator (11) and a filter screen (12), wherein the steam-water separator (11) is arranged in the cavity of the discharge container body (1), the steam-water separator (11) is positioned above the water inlet pipe (2), the filter screen (12) is arranged in the cavity of the discharge container body (1), and the filter screen (12) is positioned below the water inlet pipe (2);
the device also comprises a flow guide filter plate (17) and a steam detection device (18), wherein the flow guide filter plate (17) is arranged at the top end of the filter screen (12), the steam detection device (18) is arranged at the top end of a cavity of the discharge container body (1), and the steam detection device (18) is communicated with the exhaust pipe (10);
the heat exchanger (19) is arranged in the cavity of the discharge expansion vessel body (1) and is positioned below the steam-water separator (11), and the heat exchanger (19) is communicated with the water supply pipe (9) and the water outlet pipe (20).
2. A discharge expander for the discharge of sewage from a power plant according to claim 1, further comprising a refrigerator (13), the refrigerator (13) being in communication with the outlet duct (4) and the refrigerator (13) being located to the left of the condenser (5).
3. A discharge diffuser for discharging sewage from a power plant as claimed in claim 2, further comprising two sets of support frames (14), a connecting pipe (15) and a filter (16), the left ends of the two sets of support frames (14) being connected to the right end of the discharge diffuser body (1), the right ends of the two sets of support frames (14) being connected to the left end of the mixing box (6), the chamber of the mixing box (6) being in communication with the chamber of the discharge diffuser body (1) through the connecting pipe (15), the filter (16) being mounted in the chamber of the mixing box (6), and the filter (16) being located between the outlet pipe (4) and the water suction pipe (8) extending into the mixing box (6).
4. A discharge diffuser for discharging sewage from a power plant as claimed in claim 3, further comprising two sets of blow-down pipes (21), the two sets of blow-down pipes (21) being in communication with the chamber of the mixing tank (6), and the two sets of blow-down pipes (21) being located to the left and right of the filter (16), both sets of blow-down pipes (21) being provided with valves (22).
5. A discharge diffuser for discharging sewage in a power plant as claimed in claim 4, 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 diffuser 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 CN112539406A (en) | 2021-03-23 |
| CN112539406B true 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 |
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| Country | Link |
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| 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 |
| 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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| CN110195854A (en) * | 2019-06-27 | 2019-09-03 | 上海炳晟机电科技有限公司 | A kind of steam power plant's steam exhaust drainage recycling device |
| 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 |
| CN210772106U (en) * | 2019-07-31 | 2020-06-16 | 邯郸钢铁集团有限责任公司 | Steam recovery system of boiler blow-down flash tank |
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2020
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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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Also Published As
| Publication number | Publication date |
|---|---|
| CN112539406A (en) | 2021-03-23 |
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