CN211625214U - Marine boiler water condensing system - Google Patents
Marine boiler water condensing system Download PDFInfo
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- CN211625214U CN211625214U CN202020114693.8U CN202020114693U CN211625214U CN 211625214 U CN211625214 U CN 211625214U CN 202020114693 U CN202020114693 U CN 202020114693U CN 211625214 U CN211625214 U CN 211625214U
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Abstract
The utility model discloses a marine boiler system of congealing, including atmospheric condenser, hot-water well, boiler feed-water pump, flash tank, circulating pump, compressor, heat pump heat exchanger and expansion valve. The compressor, the expansion valve, the atmospheric condenser and the heat pump heat exchanger form a heat pump system. The heat pump system recovers the waste heat of uncondensed steam or waste steam of the waste gas boiler in the marine boiler condensate system to generate low-pressure steam, thereby avoiding energy waste and playing a role in energy conservation; the utility model discloses a heat pump system cools off the steam in the atmosphere condenser, need not the sea water cooling, has reduced maintenance work such as daily rust cleaning, anticorrosive.
Description
Technical Field
The utility model belongs to the technical field of marine boiler, especially a marine boiler system of congealing.
Background
Main equipment of the existing marine boiler water condensing system comprises an atmospheric condenser, a hot water well, a boiler feed pump and the like. Under normal working conditions, uncondensed steam in the marine boiler condensate system or redundant steam generated by an exhaust gas boiler is cooled into condensate water by seawater through an atmospheric condenser and then returns to the hot water well. The heat of the steam is completely taken away by the seawater, so that the energy is greatly wasted. In addition, the atmospheric condenser is cooled by seawater, so that the inside of the atmospheric condenser is easy to scale and corrode, and the daily maintenance workload is large.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that prior art exists, the utility model discloses to design one kind and can retrieve the waste heat of the unnecessary steam of steam or exhaust-gas boiler that does not condense among the marine boiler system of congealing, and need not the marine boiler system of congealing of sea water cooling.
In order to achieve the above purpose, the technical solution of the present invention is as follows: a marine boiler water condensing system comprises an atmospheric condenser, a hot water well, a boiler water feeding pump, a flash tank, a circulating pump, a compressor, a heat pump heat exchanger and an expansion valve.
A first inlet of the atmospheric condenser is respectively connected with the high-pressure steam using unit, the steam pressure regulating valve and the low-pressure steam using unit, a first outlet of the atmospheric condenser is connected with the hot water well, and a second outlet and a second inlet of the atmospheric condenser are respectively connected with an inlet of the compressor and an outlet of the expansion valve through refrigerant pipelines;
the inlet of the hot water well is respectively connected with the high-pressure steam using unit, the steam pressure regulating valve and the low-pressure steam using unit, and the outlet of the hot water well is respectively connected with the salinity meter and the flash tank water feeding pump;
the inlet and the outlet of the boiler feed pump are respectively connected with the salinity meter and the boiler;
the outlet of the boiler is respectively connected with the high-pressure steam unit and the steam pressure regulating valve;
the outlet of the flash tank feed water pump is connected with the first inlet of the flash tank;
a first outlet of the flash tank is connected with the low-pressure steam utilization unit, and a second outlet and a second inlet of the flash tank are respectively connected with an inlet of the circulating pump and a second outlet of the heat pump heat exchanger; the outlet of the circulating pump is connected with the second inlet of the heat pump heat exchanger;
a first inlet and a first outlet of the heat pump heat exchanger are respectively connected with the compressor and the expansion valve through refrigerant pipelines;
the compressor, the expansion valve, the atmospheric condenser and the heat pump heat exchanger form a heat pump system.
Furthermore, the number of the boiler feed pumps is two, and the two boiler feed pumps are connected in parallel.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the heat pump system recovers the waste heat of uncondensed steam or waste steam of the waste gas boiler in the marine boiler condensate system to generate low-pressure steam, thereby avoiding energy waste and playing a role in energy conservation;
2. the utility model discloses a heat pump system cools off the steam in the atmosphere condenser, need not the sea water cooling, has reduced maintenance work such as daily rust cleaning, anticorrosive.
Drawings
Fig. 1 is a schematic diagram of the present invention.
In the figure: 1. the system comprises a high-pressure steam using unit, a steam pressure regulating valve, a low-pressure steam using unit, a condenser, a hot water well, a salinity meter, a boiler water feeding pump, a boiler, a 9 flash tank water feeding pump, a 10 flash tank, a 11 circulating pump, a 12 compressor, a 13 heat pump heat exchanger, a 14 expansion valve, a 5 atmospheric condenser, a hot water well, a 6 salinity meter.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples. As shown in fig. 1, the marine boiler condensate system comprises an atmospheric condenser 4, a hot water well 5, a boiler feed pump 7, a flash tank feed pump 9, a flash tank 10, a circulating pump 11, a compressor 12, a heat pump heat exchanger 13 and an expansion valve 14.
A first inlet of the atmospheric condenser 4 is respectively connected with the high-pressure steam unit 1, the steam pressure regulating valve 2 and the low-pressure steam unit 3, a first outlet of the atmospheric condenser 4 is connected with the hot water well 5, and a second outlet and a second inlet of the atmospheric condenser 4 are respectively connected with an inlet of the compressor 12 and an outlet of the expansion valve 14 through refrigerant pipelines;
the inlet of the hot water well 5 is respectively connected with the high-pressure steam unit 1, the steam pressure regulating valve 2 and the low-pressure steam unit 3, and the outlet of the hot water well is respectively connected with the salinity meter 6 and the flash tank water-feeding pump 9;
the inlet and the outlet of the boiler feed pump 7 are respectively connected with the salinity meter 6 and the boiler 8;
the outlet of the boiler 8 is respectively connected with the high-pressure steam unit 1 and the steam pressure regulating valve 2;
the outlet of the flash tank water feeding pump 9 is connected with the first inlet of the flash tank 10;
a first outlet of the flash tank 10 is connected with the low-pressure steam utilization unit 3, and a second outlet and a second inlet are respectively connected with an inlet of the circulating pump 11 and a second outlet of the heat pump heat exchanger 13; the outlet of the circulating pump 11 is connected with the second inlet of the heat pump heat exchanger 13;
the first inlet and the first outlet of the heat pump heat exchanger 13 are respectively connected with the compressor 12 and the expansion valve 14 through refrigerant pipelines;
the compressor 12, the expansion valve 14, the atmospheric condenser 4 and the heat pump heat exchanger 13 form a heat pump system.
Further, there are two boiler feed pumps 7, and the two boiler feed pumps 7 are connected in parallel.
The utility model discloses a concrete working process as follows:
when the boiler 8 generates high-pressure steam, a part of the steam passes through the high-pressure steam unit 1 and then is reduced in temperature to form a steam-water mixture, and the other part of the steam passes through the steam pressure regulating valve 2 to control the steam pressure in the high-pressure steam unit 1 and then is mixed with the steam-water mixture passing through the high-pressure steam unit 1. One part of the steam-water mixture enters the atmospheric condenser 4 for heat release condensation, and the other part of the steam-water mixture is directly communicated to the hot water well 5 to ensure the temperature of hot water in the hot water well 5. The steam-water mixture entering the atmospheric condenser 4 also enters the hot water well 5 after heat release and condensation. Boiler water in the hot water well 5 is divided into two paths, one path is used for supplying water to the boiler 8, and the other path is used for supplying water to the flash tank 10. When the water level of the boiler 8 is low, the boiler water feed pump 7 starts to work, and boiler water is heated and evaporated from the hot water well 5 to the boiler 8 through the salinity meter 6 and the boiler water feed pump 7 to generate high-pressure steam; when the water level of the flash tank is low, the other path of boiler water is flashed into the flash tank 10 through a flash tank water feeding pump 9 to generate low-pressure steam. And (3) conveying the high-pressure steam to the high-pressure steam unit 1 and the steam pressure regulating valve 2, and conveying the low-pressure steam to the low-pressure steam unit 3 to finish circulation.
The superheated hot water in the flash tank 10 is partially flashed into low-pressure steam and is conveyed to the low-pressure steam-using unit 3, and the other part of liquid water is conveyed to the heat pump heat exchanger 13 through the circulating pump 11 to be heated into superheated water, and then is conveyed back to the flash tank 10 to complete circulation.
The compressor 12 compresses a gas refrigerant, and the generated high-temperature and high-pressure gas refrigerant heats high-pressure boiler water in the heat pump heat exchanger 13 to generate superheated water. The low-temperature and high-pressure liquid refrigerant, which has released heat, is throttled by the expansion valve 14 to become a low-temperature and low-pressure liquid refrigerant, and exchanges heat with the steam-water mixture generated by the high-pressure steam unit 1, the steam pressure regulating valve 2, and the low-pressure steam unit 3 in the atmospheric condenser 4 to condense the steam-water mixture. The resulting high temperature, low pressure gaseous refrigerant is compressed in the compressor 10, completing the cycle.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples, and that various changes and modifications can be made in the embodiments of the invention without departing from the spirit and scope of the invention.
Claims (2)
1. The utility model provides a marine boiler system of congealing which characterized in that: the system comprises an atmospheric condenser (4), a hot water well (5), a boiler water feeding pump (7), a flash tank water feeding pump (9), a flash tank (10), a circulating pump (11), a compressor (12), a heat pump heat exchanger (13) and an expansion valve (14);
a first inlet of the atmospheric condenser (4) is respectively connected with the high-pressure steam unit (1), the steam pressure regulating valve (2) and the low-pressure steam unit (3), a first outlet of the atmospheric condenser (4) is connected with the hot water well (5), and a second outlet and a second inlet of the atmospheric condenser (4) are respectively connected with an inlet of the compressor (12) and an outlet of the expansion valve (14) through refrigerant pipelines;
the inlet of the hot water well (5) is respectively connected with the high-pressure steam unit (1), the steam pressure regulating valve (2) and the low-pressure steam unit (3), and the outlet of the hot water well is respectively connected with the salinity meter (6) and the flash tank water-feeding pump (9);
the inlet and the outlet of the boiler feed water pump (7) are respectively connected with the salinity meter (6) and the boiler (8);
the outlet of the boiler (8) is respectively connected with the high-pressure steam unit (1) and the steam pressure regulating valve (2);
the outlet of the flash tank water feeding pump (9) is connected with the first inlet of the flash tank (10);
a first outlet of the flash tank (10) is connected with the low-pressure steam-using unit (3), and a second outlet and a second inlet are respectively connected with an inlet of the circulating pump (11) and a second outlet of the heat pump heat exchanger (13); the outlet of the circulating pump (11) is connected with the second inlet of the heat pump heat exchanger (13);
a first inlet and a first outlet of the heat pump heat exchanger (13) are respectively connected with the compressor (12) and the expansion valve (14) through refrigerant pipelines;
the compressor (12), the expansion valve (14), the atmospheric condenser (4) and the heat pump heat exchanger (13) form a heat pump system.
2. The marine boiler condensate system of claim 1, wherein: the number of the boiler water feeding pumps (7) is two, and the two boiler water feeding pumps (7) are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114693.8U CN211625214U (en) | 2020-01-17 | 2020-01-17 | Marine boiler water condensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114693.8U CN211625214U (en) | 2020-01-17 | 2020-01-17 | Marine boiler water condensing system |
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| Publication Number | Publication Date |
|---|---|
| CN211625214U true CN211625214U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020114693.8U Active CN211625214U (en) | 2020-01-17 | 2020-01-17 | Marine boiler water condensing system |
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| CN (1) | CN211625214U (en) |
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2020
- 2020-01-17 CN CN202020114693.8U patent/CN211625214U/en active Active
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