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CN-224215342-U - Waste heat cascade utilization device based on efficient heat exchange of garbage power generation

CN224215342UCN 224215342 UCN224215342 UCN 224215342UCN-224215342-U

Abstract

The utility model discloses a waste heat cascade utilization device based on efficient heat exchange of garbage power generation, which comprises a boiler, a first fan, a second fan, a desulfurizing tower, a dust remover and a waste heat recovery unit, wherein the first fan is connected above one side of the boiler, the second fan is fixedly connected below one side of the boiler, the waste heat recovery unit is connected on one side of the dust remover, a chimney is fixed on one side of the waste heat recovery unit, the waste heat recovery unit is used for three-stage spraying, the first stage is a flue gas purifying spraying section and mainly used for removing HCL in flue gas, a water diversion demisting device is arranged at the upper end of the first stage, and circulating pumps are independently arranged for circulating first-stage spraying water and are not mixed with second-stage and third-stage spraying water. The utility model has the advantages that the water film type direct contact heat exchange is adopted, the heat exchange efficiency is high, the heat exchange is stable, the water-soluble HCL in the flue gas is basically removed after the flue gas is purified by primary spraying, the clean flue gas enters the secondary and tertiary spraying layers through the riser, the secondary and tertiary spraying water is contacted with the clean flue gas, and the water quality is better.

Inventors

  • ZHANG HAIPENG
  • ZHAO CHUNXIAO
  • CUI ZEPING
  • SHI PU

Assignees

  • 山东清大汇中清洁能源科技有限公司

Dates

Publication Date
20260508
Application Date
20250409

Claims (7)

  1. 1. Waste heat cascade utilization device based on high-efficient heat transfer of garbage power generation, its characterized in that includes: Boiler (1), first fan (101), second fan (102), desulfurizing tower (2), dust remover (3) and waste heat recovery unit (4), first fan (101) are connected in one side top of boiler (1), and second fan (102) fixed connection is in one side below of boiler (1), and desulfurizing tower (2) fixed connection is in pipeline one side of boiler (1), and one side at desulfurizing tower (2) is connected in dust remover (3), and waste heat recovery unit (4) are connected in one side of dust remover (3), and connect the pipeline connection between each part.
  2. 2. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation according to claim 1, wherein a waste heat water pump (301) is arranged between the dust remover (3) and the waste heat recovery unit (4), a chimney (5) is fixed on one side of the waste heat recovery unit (4), the waste heat recovery unit (4) is sprayed in three stages, a first stage is a flue gas purification spraying section and mainly used for removing HCL in flue gas, a water diversion demisting device is arranged at the upper end of the first stage, and circulating pumps are independently arranged for circulating first stage spraying water and are not mixed with second and third stage spraying water.
  3. 3. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation according to claim 2 is characterized in that one side of the waste heat recovery unit (4) is connected with a heat exchanger (6), and one end of the heat exchanger (6) is connected with a heat pump unit (7).
  4. 4. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation as claimed in claim 3, wherein one end of the heat exchanger (6) is connected with a heat supply network backwater (8), and one end of the heat pump unit (7) is connected with a heat supply network water supply (9).
  5. 5. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation according to claim 4 is characterized in that the other end of the heat pump unit (7) is connected with a condensation water tank (10), and one end of the heat pump unit (7) is connected with a steam heater (11).
  6. 6. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation according to claim 5, wherein one side of the heat pump unit (7) is connected with a branch cylinder (12), and one ends of the first fan (101) and the second fan (102) are connected with a garbage bin (13).
  7. 7. The waste heat cascade utilization device based on efficient heat exchange of garbage power generation according to claim 2, wherein a flue flashboard door is added from the outlets of the first fan (101) and the second fan (102) to a flue of a chimney (5), flue gas is introduced into the waste heat recovery unit (4) before the flashboard door, the flue gas after heat recovery is returned to the newly added flashboard door and enters the chimney (5), meanwhile, the flashboard door is added at an inlet and an outlet of the waste heat recovery unit (4), and the waste heat recovery system is cut out in a non-heating season.

Description

Waste heat cascade utilization device based on efficient heat exchange of garbage power generation Technical Field The utility model relates to the technical field of waste heat recovery, in particular to a waste heat cascade utilization device based on efficient heat exchange of garbage power generation. Background The waste heat cascade utilization device for efficient heat exchange of garbage power generation is a device or a system for recycling and utilizing waste heat generated in the garbage incineration process. Such devices typically include multiple components to achieve multiple levels of utilization of waste heat, thereby improving energy efficiency and reducing waste. In the waste heat recovery process, flue gas and the like generated in the garbage power generation process contain considerable heat, if the recovery efficiency is low, most of the heat can not be effectively utilized along with the exhaust gas discharged into the environment, serious energy waste is caused, and meanwhile, the flue gas subjected to garbage treatment has corrosiveness and can damage a power generation heat exchange utilization device, so that the efficient heat exchange waste heat utilization device is needed to be provided, and the service life of the device is prolonged. Disclosure of utility model The utility model aims to provide a waste heat cascade utilization device based on efficient heat exchange of garbage power generation, so as to solve the problems in the background technology. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a waste heat cascade utilization device based on efficient heat exchange of garbage power generation, which comprises the following components: Boiler, first fan, second fan, desulfurizing tower, dust remover and waste heat recovery unit, first fan is connected in one side top of boiler, and second fan fixed connection is in one side below of boiler, and desulfurizing tower fixed connection is in pipeline one side of boiler, and the dust remover is connected in one side of desulfurizing tower, and waste heat recovery unit connects in one side of dust remover, and connecting tube connects between each part. Further, a waste hot water pump is arranged between the dust remover and the waste heat recovery unit, a chimney is fixed on one side of the waste heat recovery unit, and the waste heat recovery unit is sprayed in three stages, wherein the first stage is a flue gas purification spraying section and mainly used for removing HCL in flue gas, a water diversion demisting device is arranged at the upper end of the first stage, and circulating pumps are independently arranged for circulating first stage spraying water and are not mixed with second and third stage spraying water. Further, one side of the waste heat recovery unit is connected with a heat exchanger, and one end of the heat exchanger is connected with a heat pump unit. Further, one end of the heat exchanger is connected with a heat supply network backwater, and one end of the heat pump unit is connected with a heat supply network water supply. Further, the other end of the heat pump unit is connected with a condensation water tank, and one end of the heat pump unit is connected with a steam heater. Further, one side of the heat pump unit is connected with a branch cylinder, and one ends of the first fan and the second fan are connected with a garbage bin. Further, a flue flashboard door is added from the outlets of the first fan and the second fan to a chimney flue, flue gas is introduced into the waste heat recovery unit in front of the flashboard door, the flue gas after heat recovery returns to the newly added flashboard door and enters the chimney, meanwhile, the flashboard door is added at the inlet and the outlet of the waste heat recovery unit, and the waste heat recovery system is cut out in a non-heating season. The utility model has the following beneficial effects: The utility model adopts water film type direct contact heat exchange, the heat exchange efficiency is high, the heat exchange is stable, the water-soluble HCL in the flue gas is basically removed after the flue gas is purified by primary spraying, the clean flue gas enters a secondary-tertiary spraying layer through a riser, the secondary-tertiary spraying water contacts with the clean flue gas, the water quality is good, the flue gas is bounded by an inlet and an outlet flashboard gate of a waste heat recovery unit, meanwhile, the corrosion resistance of the conventional chimney is considered, the corrosion resistance of the chimney is ensured, the purified flue gas enters a heat exchange system, chloride ions in the heat exchange system are greatly reduced, the heat exchange system is made of corrosion resistant materials, the materials in contact with fluid such as a water pump, a pipeline and the like matched with the waste heat recovery unit are made of corr