CN220601481U - Exhaust steam recovery device - Google Patents
Exhaust steam recovery device Download PDFInfo
- Publication number
- CN220601481U CN220601481U CN202322119995.0U CN202322119995U CN220601481U CN 220601481 U CN220601481 U CN 220601481U CN 202322119995 U CN202322119995 U CN 202322119995U CN 220601481 U CN220601481 U CN 220601481U
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- condensate
- recovery
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- flash
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- 238000011084 recovery Methods 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000001704 evaporation Methods 0.000 claims abstract description 21
- 230000008020 evaporation Effects 0.000 claims abstract description 21
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 239000007921 spray Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a waste steam recovery device, belongs to the technical field of steam treatment, and aims at solving the problems that when sewage is subjected to flash evaporation treatment, steam is directly emptied and the energy-saving and environment-friendly concept is not met; according to the utility model, the expander, the generator, the condensate recovery tank and the condensate delivery pump are added on the existing flash tank, so that the process is simple, the investment is small, and the added exhaust steam recovery method is applicable to various heat recovery and utilization environments and has a wide application range; the heat recovery of the sewage discharged by the boiler is converted into useful electric energy, so that the energy waste is reduced, the carbon emission is indirectly reduced, the emission of the sewage can be reduced, the sewage continuously discharged by the boiler and regularly discharged by sewage is purified again through flash evaporation, and the water condensed again after purification is changed into clean steam condensate water which can be directly recycled.
Description
Technical Field
The utility model belongs to the technical field of steam treatment, and particularly relates to a waste steam recovery device.
Background
At present, continuous sewage and periodic sewage discharged from a boiler drum are discharged into a flash tank, steam flashed in a flash tube is directly discharged into the atmosphere, and condensed water is conveyed to other users through pipelines.
Because the high-temperature high-pressure sewage contains higher energy, the steam obtained by flash evaporation has higher energy and recovery value, and the condensed water obtained by condensing the flash evaporation steam contains few impurities and can be directly utilized after recovery.
Therefore, a waste steam recovery device is needed, and the problems that in the prior art, when the sewage is subjected to flash evaporation treatment, steam is directly emptied, and the energy conservation and environmental protection concepts are not met are solved.
Disclosure of Invention
The utility model aims to provide a waste steam recovery device to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dead steam recovery unit, includes the flash tank, still includes:
the boiler drainage pipeline is communicated with one side of the top of the flash tank, and a flash water pipeline is arranged on the bottom surface of the flash tank in a communicated manner;
the flash evaporation device comprises a flash evaporation tank, an expansion machine, a condensate water recovery mechanism and a condensate water recovery mechanism, wherein the expansion machine is arranged on one side of the flash evaporation tank, a flash evaporation gas pipeline is communicated between the input end of the expansion machine and the top end of the flash evaporation tank, the output end of the expansion machine is connected with a generator, and the condensate water recovery mechanism is arranged on the top end of the expansion machine.
In one embodiment, the condensed water recovery mechanism includes:
the condensate recovery tank is arranged on one side of the expansion machine, one side of the top of the condensate recovery tank is communicated with the top of the expansion machine, one side of the bottom of the condensate recovery tank is communicated with a condensate conveying pump, and a desalted water spraying distribution piece is arranged above the condensate conveying pump;
the deaerator is arranged on one side of the condensate recovery tank, and a condensate outlet pipeline is communicated between the liquid outlet end of the condensate conveying pump and the input end of the deaerator.
It is further worth explaining that desalted water sprays the distribution piece including with the desalted water pipeline that condensate recovery jar top one side intercommunication set up, desalted water pipeline and condensate recovery jar intercommunication department highly is higher than condensate water pipeline and condensate recovery jar's intercommunication department height, condensate recovery jar's inside is provided with the desalted water sprays the distributor that sets up with the condensate recovery jar intercommunication.
It is still further to be noted that, the cross section two-section type L shape setting of condensate water pipeline, condensate water pipeline with the intercommunication department height of expander is less than condensate water pipeline and condensate recovery jar.
As a preferred embodiment of the present utility model,
and an adjusting valve is communicated between the flash evaporation gas pipeline and the condensate water pipeline, and is positioned at the vertical flow direction of the flash evaporation gas pipeline.
Compared with the prior art, the exhaust steam recovery device provided by the utility model at least comprises the following components
The beneficial effects are that:
(1) By adding the expander, the generator, the condensate recovery tank and the condensate delivery pump on the existing flash tank, the process is simple, the investment is small, and the added exhaust steam recovery method is applicable to various heat recovery and utilization environments and has wide application range.
(2) The heat recovery of the sewage discharged by the boiler is converted into useful electric energy, so that the energy waste is reduced, the carbon emission is indirectly reduced, the emission of the sewage can be reduced, the sewage continuously discharged by the boiler and regularly discharged by sewage is purified again through flash evaporation, and the water condensed again after purification is changed into clean steam condensate water which can be directly recycled.
Drawings
FIG. 1 is a schematic diagram of a flow mechanism according to the present utility model.
In the figure: 1. a flash tank; 2. a boiler drain line; 3. flash water lines; 4. an expander; 5. a flash gas line; 6. a generator; 7. a condensate recovery tank; 8. a condensate water line; 9. a condensate delivery pump; 10. a deaerator; 11. a condensate outlet line; 12. a desalination water line; 13. desalted water spray distributor; 14. and (3) regulating the valve.
Detailed Description
The utility model is further described below with reference to examples.
Referring to fig. 1, the utility model provides a waste steam recovery device, which comprises a flash tank 1, a boiler drainage pipeline 2, wherein the boiler drainage pipeline 2 is communicated with one side of the top of the flash tank 1, and a flash water pipeline 3 is arranged on the bottom surface of the flash tank 1 in a communicated manner;
the expander 4, expander 4 set up in one side of flash tank 1, and the intercommunication is provided with flash gas pipeline 5 between the input of expander 4 and the top of flash tank 1, and the output of expander 4 is connected with generator 6, and the top of expander 4 is provided with condensate recovery mechanism.
It should be noted that the expander 4 is a machine for obtaining cold by utilizing the principle that mechanical work is output outwards to reduce the temperature of gas when compressed gas is expanded and depressurized, and the flash gas obtained by flash evaporation in the flash tank 1 is conveyed into the expander 4 through the flash evaporation gas pipeline 5 to perform work, so as to drive the generator 6 to perform power generation treatment.
The condensate water recovery mechanism comprises a condensate water recovery tank 7, wherein the condensate water recovery tank 7 is arranged on one side of the expansion machine 4, one side of the top of the condensate water recovery tank 7 is communicated with the top of the expansion machine 4 to form a condensate water pipeline 8, one side of the bottom of the condensate water recovery tank 7 is communicated with a condensate water delivery pump 9, and a desalted water spray distribution piece is arranged above the condensate water delivery pump 9;
the deaerator 10, deaerator 10 set up in the one side of condensate recovery jar 7, and the intercommunication is provided with condensate drain line 11 between the liquid outlet of condensate delivery pump 9 and the input of deaerator 10.
It should be noted that the deaerator 10 is preferably a rotary film deaerator 10, and the principle is that the water is sprayed out from a film lifting pipe in a spiral manner according to a certain angle to perform heat exchange deaeration with heating steam, the water is heated to a saturation temperature corresponding to the working pressure of the deaerator 10, oxygen and other gases dissolved in the water are removed, corrosion of a boiler water supply pipe, an economizer and other auxiliary equipment is prevented and reduced, and condensate water is recycled through the deaerator 10.
It is worth specifically describing that the desalted water spray distribution member includes a desalted water pipeline 12 which is communicated with one side of the top of the condensate recovery tank 7, and the height of the communicating position between the desalted water pipeline 12 and the condensate recovery tank 7 is higher than that between the condensate water pipeline 8 and the condensate recovery tank 7, and a desalted water spray distributor 13 which is communicated with the desalted water pipeline 12 is arranged inside the condensate recovery tank 7.
It is worth specifically describing that the cross section of the condensate water pipeline 8 is provided with two-section L-shaped structures, and the height of the communicating position of the condensate water pipeline 8 and the expansion machine 4 is lower than that of the communicating position of the condensate water pipeline 8 and the condensate recovery tank 7.
It should be noted that, the side of the condensate water pipeline 8 near the expander 4 is in an inverted L shape, and the side of the condensate water pipeline 8 near the condensate recovery tank 7 is in an upright L shape, and is disposed here for sending condensate water flowing out from the expander 4 to the condensate recovery tank 7 through the condensate water pipeline 8, so as to prevent the condensate water from flowing back to a certain extent.
It is worth specifically describing that a regulating valve 14 is arranged between the flash gas pipeline 5 and the condensate water pipeline 8 in a communicating manner, and the regulating valve 14 is located at the vertical flow direction of the flash gas pipeline 5.
The scheme comprises the following working processes: the sewage generated by the boiler drum enters the flash tank 1 through a boiler sewage pipeline, steam and flash water are flashed in the flash tank 1, the flash water is conveyed into circulating water through a flash water pipeline 3, the steam is conveyed into the expander 4 through a flash gas pipeline 5, the expander 4 is operated to drive the generator 6 to generate power, the temperature and the pressure of the flash steam are reduced to become condensate after the operation is performed, the condensate is conveyed to the condensate recovery tank 7 through a condensate water pipeline 8, a desalted water pipeline 12 is provided for adjusting a small amount of incompletely condensed steam in the condensate recovery tank 7, the condensate temperature can be adjusted, and the condensate is conveyed to the deaerator 10 through a condensate conveying pump 9 and an outlet of the condensate conveying pump 9.
The working process can be as follows: the temperature and pressure of the boiler waste water are higher, steam which is steamed out by the waste water is rich in higher energy and cleaner, the steam can be used for power generation, and condensed water after power generation and condensation does not contain impurities and can be directly recycled.
Claims (5)
1. The utility model provides a dead steam recovery unit, includes flash tank (1), its characterized in that still includes:
the boiler drainage pipeline (2) is communicated with one side of the top of the flash tank (1), and a flash water pipeline (3) is arranged on the bottom surface of the flash tank (1) in a communicated manner;
the flash evaporation device comprises an expansion machine (4), wherein the expansion machine (4) is arranged on one side of a flash evaporation tank (1), a flash evaporation gas pipeline (5) is communicated between the input end of the expansion machine (4) and the top end of the flash evaporation tank (1), the output end of the expansion machine (4) is connected with a generator (6), and a condensate water recovery mechanism is arranged on the top end of the expansion machine (4).
2. The exhaust steam recovery apparatus as claimed in claim 1, wherein: the condensate water recovery mechanism includes:
the condensate recovery tank (7) is arranged on one side of the expansion machine (4), a condensate water pipeline (8) is communicated with the top of the expansion machine (4) on one side of the top of the condensate recovery tank (7), a condensate conveying pump (9) is communicated with one side of the bottom of the condensate recovery tank (7), and a desalted water spraying distribution piece is arranged above the condensate conveying pump (9);
the deaerator (10), deaerator (10) set up in one side of congeal liquid recovery jar (7), the play liquid end of congeal liquid delivery pump (9) with the intercommunication is provided with congeal liquid outlet line (11) between the input of deaerator (10).
3. The exhaust steam recovery apparatus as claimed in claim 2, wherein: the desalted water spraying distribution piece comprises a desalted water pipeline (12) communicated with one side of the top of the condensate recovery tank (7), the height of the communicated position of the desalted water pipeline (12) and the condensate recovery tank (7) is higher than that of the communicated position of the condensate water pipeline (8) and the condensate recovery tank (7), and a desalted water spraying distributor (13) communicated with the desalted water pipeline (12) is arranged in the condensate recovery tank (7).
4. A waste steam recovery device according to claim 3, wherein: the cross section two-section type L-shaped setting of the condensate water pipeline (8), the condensate water pipeline (8) with the intercommunication department height of expander (4) is less than the condensate water pipeline (8) and condensate recovery jar (7) high.
5. The exhaust steam recovery apparatus as claimed in claim 2, wherein: and an adjusting valve (14) is communicated between the flash evaporation gas pipeline (5) and the condensate water pipeline (8), and the adjusting valve (14) is positioned at the vertical flow direction of the flash evaporation gas pipeline (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119995.0U CN220601481U (en) | 2023-08-08 | 2023-08-08 | Exhaust steam recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119995.0U CN220601481U (en) | 2023-08-08 | 2023-08-08 | Exhaust steam recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220601481U true CN220601481U (en) | 2024-03-15 |
Family
ID=90179381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322119995.0U Active CN220601481U (en) | 2023-08-08 | 2023-08-08 | Exhaust steam recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220601481U (en) |
-
2023
- 2023-08-08 CN CN202322119995.0U patent/CN220601481U/en active Active
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