CN214371825U - Novel open MGGH system - Google Patents
Novel open MGGH system Download PDFInfo
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- CN214371825U CN214371825U CN202023312864.7U CN202023312864U CN214371825U CN 214371825 U CN214371825 U CN 214371825U CN 202023312864 U CN202023312864 U CN 202023312864U CN 214371825 U CN214371825 U CN 214371825U
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- flue gas
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- reheater
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Abstract
The utility model provides a novel open MGGH system, MGGH system include flue gas cooler, flue gas re-heater, steam re-heater, condensate booster pump and a plurality of condensate pipeline, flue gas cooler's flue gas inlet inserts the flue gas that the boiler discharged, the flue gas re-heater is arranged between desulfurizing tower or dust remover and chimney, the end of intaking of condensate booster pump is connected with condensate system's low equipment point of fetching water that adds, the end of intaking of flue gas cooler is connected to the play water end of condensate booster pump, the end of intaking that the flue gas re-heater was connected through the steam re-heater to the play water end of flue gas cooler, heats the export flue gas by desulfurizing tower or dust remover exhaust through the flue gas re-heater, the play water end of flue gas re-heater inserts condensate system's return water point. This open MGGH system can retrieve the flue gas waste heat effectively to can avoid waste heat recovery device too big, the higher problem of input cost.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a technical field that the flue gas was handled, especially a novel open MGGH system.
[ background of the invention ]
Along with the higher and higher national treatment requirements on atmospheric emission, a large number of smoke cooling and reheating projects are built in the industry so as to achieve the purposes of saving water, removing dust and acid mist and realizing ultralow emission modification. The prior technical scheme is as follows: the MGGH system constructed between the flue gas cooler and the flue gas reheater is a closed water circulation system for heating clean flue gas by using the heat of the raw flue gas. According to the system, a flue gas cooler is arranged in an original flue gas flue, so that the flue gas temperature is reduced, the temperature of circulating water is increased, and the flue gas is purified by heating the circulating water to form closed circulation. Meanwhile, a flue gas waste heat recovery device is required to be arranged to recover the heat of the original flue gas which cannot be utilized in the MGGH.
The technical scheme has certain technical defects: the MGGH system that flue gas cooler, flue gas reheater constitute is balanced closed water circulating system, can't retrieve whole heat of former flue gas completely, needs dispose waste heat recovery device, designs waste heat recovery device according to the reheater under the outage situation that breaks down, and waste heat recovery device is too big, and the input cost is higher. And the closed circulation system also needs to be additionally provided with a water supplementing device and a dosing device, so that the energy consumption and the equipment failure rate are increased.
[ Utility model ] content
The utility model aims at solving the problem among the prior art, provide a novel open MGGH system, can retrieve the flue gas waste heat effectively to can avoid waste heat recovery device too big, the higher problem of input cost.
In order to achieve the purpose, the utility model provides a novel open MGGH system, the MGGH system includes flue gas cooler, flue gas reheater, steam reheater, condensate booster pump and a plurality of condensate pipes, the flue gas import of flue gas cooler inserts the flue gas that the boiler discharged, the outlet flue of flue gas cooler links to each other with the inlet flue of desulfurizing tower or dust remover, the flue gas reheater arranges between desulfurizing tower or dust remover and chimney, the outlet flue of desulfurizing tower or dust remover links to each other with the inlet flue of chimney through the flue gas reheater, the inlet water end of condensate booster pump links to each other with the low-load equipment water intake point of condensate system through the condensate pipe, the outlet water end of condensate booster pump connects the flue gas cooler inlet end, the condensate booster pump fetches the condensate from the water intake point to carry and retrieve the heat to the flue gas cooler, the water outlet end of the flue gas cooler is connected with the water inlet end of the flue gas reheater through the steam reheater, the condensed water discharged by the flue gas cooler enters the flue gas reheater through the steam reheater, the outlet flue gas discharged by the desulfurizing tower or the dust remover is heated through the flue gas reheater, the outlet flue gas after heating is discharged by a chimney, the water outlet end of the flue gas reheater is connected to the water return point of the condensed water system, and the condensed water discharged by the flue gas reheater returns to the condensed water system.
Preferably, the condensed water booster pump is subjected to frequency conversion adjustment and used for adjusting the flow of the condensed water, and an adjusting valve is arranged in front of the condensed water booster pump and used for adjusting the water temperature of the condensed water.
Preferably, the water taking point and the water returning point are sequentially arranged before the condensed water enters the low pressure water feeding device, the water returning point is arranged behind the water taking point, and a manual gate valve is further arranged between the water taking point and the water returning point.
Preferably, the heat exchange materials of the flue gas cooler and the flue gas reheater are titanium pipes or fluoroplastics.
Preferably, the heat exchange medium of the MGGH system is steam turbine condensed water.
The utility model has the advantages that:
1. the collected condensed water is heated by the flue gas cooler and then enters the flue gas reheater to release heat, and the temperature of the condensed water at the outlet of the flue gas reheater is higher than that of the condensed water entering the flue gas cooler, so that the waste heat of the flue gas can be flexibly utilized.
2. The heat source of the flue gas reheater selects high-temperature condensed water, the condensed water cooled by the flue gas reheater enters the flue gas cooler to be heated, the heated condensed water automatically tracks and distributes the position of a backwater point and returns to the condensed water system, and optimal energy-saving configuration is achieved.
3. The change according to environmental protection policy can be accomplished, and the flue gas temperature of reheater export is controlled in a flexible way, under the condition that does not change system and equipment size, the at utmost retrieves the flue gas waste heat.
4. Compare the closed MGGH system that has surplus heat recovery of tradition, unnecessary water charging system, medicine system and waste heat recovery system have been reduced to the system.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic diagram of a novel open MGGH system of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the utility model relates to a novel open MGGH system, MGGH system includes flue gas cooler 1, flue gas reheater 2, steam reheater 3, condensate booster pump 4 and a plurality of condensate pipes, flue gas that boiler 10 discharged is inserted to the flue gas import of flue gas cooler 1, the outlet flue of flue gas cooler 1 links to each other with the inlet flue of desulfurizing tower or dust remover 20, flue gas reheater 2 arranges between desulfurizing tower or dust remover 20 and chimney 30, the outlet flue of desulfurizing tower or dust remover 20 links to each other with the inlet flue of chimney 30 through flue gas reheater 2, the inlet end of condensate booster pump 4 is connected with the low-pressure equipment water intake point of condensate system through the condensate pipe, the outlet end of condensate booster pump 4 connects the inlet end of flue gas cooler 1, condensate booster pump 4 fetches condensate from the water intake point to carry to flue gas cooler 1 and retrieve the heat, the water outlet end of the flue gas cooler 1 is connected with the water inlet end of the flue gas reheater 2 through the steam reheater 3, the condensed water discharged from the flue gas cooler 1 enters the flue gas reheater 2 through the steam reheater 3, the outlet flue gas discharged from the desulfurizing tower or the dust remover 20 is heated through the flue gas reheater 2, the outlet flue gas after heating is discharged from the chimney 30, the water outlet end of the flue gas reheater 2 is connected with the water return point of the condensed water system, and the condensed water discharged from the flue gas reheater 2 returns to the condensed water system.
Furthermore, the condensate booster pump 4 is frequency conversion adjustment for adjusting the flow of the condensate, and an adjusting valve is arranged in front of the condensate booster pump 4 for adjusting the water temperature of the condensate.
Furthermore, the water taking point and the water returning point are sequentially arranged before the condensed water enters the low pressure water feeding device, the water returning point is arranged behind the water taking point, and a manual gate valve is arranged between the water taking point and the water returning point.
Further, the heat exchange materials of the flue gas cooler 1 and the flue gas reheater 2 are titanium pipes or fluoroplastics.
Further, a heat exchange medium of the MGGH system is steam turbine condensed water.
Furthermore, the condensed water booster pump 4 is provided with a regulating valve for regulating the water temperature and the flow rate of the low-pressure equipment condensed water entering the MGGH system.
The utility model discloses the working process:
the utility model relates to a novel open MGGH system, during operation, the condensate booster pump 4 of MGGH system gets the condensate from the water intaking point, and carry to flue gas cooler 1 and retrieve the heat, reduces the flue gas temperature before the dust removal, the condensate that flue gas cooler 1 discharged is carried to flue gas reheater 2 through steam reheater 3 (3 is not in operation under normal operating conditions; when the low load operation, can open when steam reheater 3 export smoke temperature does not reach the setting value, heats the condensate), heats the export flue gas that is discharged by desulfurizing tower or dust remover 20 through flue gas reheater 2, the export flue gas after the heating is discharged by chimney 30, the condensate that flue gas reheater 2 discharged is through flue gas cooler 1 intensifies the temperature, retrieves the heat after the intensification, the condensate after the intensification autotracking distributes the return water, gets back to the condensate system, realizes the optimal energy-saving configuration, and simultaneously, the temperature of the flue gas before dust removal is reduced.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (5)
1. A novel open MGGH system which is characterized in that: MGGH system includes flue gas cooler (1), flue gas reheater (2), steam reheater (3), condensate booster pump (4) and a plurality of condensate pipe way, the flue gas that boiler (10) emission was inserted to the flue gas inlet of flue gas cooler (1), the outlet flue of flue gas cooler (1) links to each other with the inlet flue of desulfurizing tower or dust remover (20), flue gas reheater (2) arranges between desulfurizing tower or dust remover (20) and chimney (30), the outlet flue of desulfurizing tower or dust remover (20) links to each other with the inlet flue of chimney (30) through flue gas reheater (2), the inlet end of condensate booster pump (4) is connected with the low equipment that adds of condensate pipe way and condensate system and is got the water point, the outlet end of condensate booster pump (4) is connected flue gas cooler (1) inlet end, condensate booster pump (4) gets the condensate from getting the water point, and carry to flue gas cooler (1) recovered heat, the play water end of flue gas cooler (1) passes through the end of intaking that steam reheater (3) is connected flue gas reheater (2), flue gas cooler (1) exhaust condensate water gets into flue gas reheater (2) through steam reheater (3), through flue gas reheater (2) heating by desulfurizing tower or dust remover (20) exhaust export flue gas, the export flue gas after the heating is discharged by chimney (30), the play water end of flue gas reheater (2) is received condensate system's return water point, and flue gas reheater (2) exhaust condensate water returns condensate system.
2. The novel open MGGH system of claim 1, wherein: the condensed water booster pump (4) is frequency conversion adjustment and used for adjusting the flow of condensed water, and an adjusting valve is arranged in front of the condensed water booster pump (4) and used for adjusting the water temperature of the condensed water.
3. The novel open MGGH system of claim 1, wherein: the water taking point and the water returning point are sequentially arranged before condensed water enters the low-pressure water feeding device, the water returning point is arranged behind the water taking point, and a manual gate valve is arranged between the water taking point and the water returning point.
4. The novel open MGGH system of claim 1, wherein: the heat exchange materials of the flue gas cooler (1) and the flue gas reheater (2) are titanium pipes or fluoroplastics.
5. The novel open MGGH system of claim 1, wherein: and the heat exchange medium of the MGGH system is steam turbine condensed water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023312864.7U CN214371825U (en) | 2020-12-31 | 2020-12-31 | Novel open MGGH system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023312864.7U CN214371825U (en) | 2020-12-31 | 2020-12-31 | Novel open MGGH system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214371825U true CN214371825U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023312864.7U Active CN214371825U (en) | 2020-12-31 | 2020-12-31 | Novel open MGGH system |
Country Status (1)
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|---|---|
| CN (1) | CN214371825U (en) |
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2020
- 2020-12-31 CN CN202023312864.7U patent/CN214371825U/en active Active
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