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CN-224215343-U - Boiler primary air high-efficiency heat energy recovery device

CN224215343UCN 224215343 UCN224215343 UCN 224215343UCN-224215343-U

Abstract

The utility model relates to a boiler primary air high-efficiency heat energy recovery device, which belongs to the technical field of garbage incinerators and comprises a garbage incinerator, wherein a primary air-air preheater is fixedly connected to the outer side of the garbage incinerator, a connecting pipe is fixedly connected to the top end of the primary air-air preheater, a plurality of rows of return pipes are fixedly connected to the inner part of the primary air-air preheater, and an annular box is fixedly connected to the outer side of the garbage incinerator. The utility model has the beneficial effects that the external normal-temperature air can be pumped into the primary air-air preheater through the action of the air pump, and the high-temperature steam and the normal-temperature air in the primary air-air preheater exchange heat, so that the temperature of the normal-temperature air is continuously increased, and finally, the air is sent into the hearth in the garbage incinerator through the air suction assembly by means of the air inlet pipe, so that sufficient oxygen can be provided for garbage combustion, the energy waste is obviously reduced, and the economical efficiency and the environmental protection of the household garbage incineration treatment are improved.

Inventors

  • WANG MING
  • ZENG QINGYU
  • ZHANG ZHONGHUA
  • ZHANG LEILEI
  • DUAN WEIYU
  • YUAN XUEJIAN
  • SUN JIAFU

Assignees

  • 北京朝阳北控再生能源科技有限公司

Dates

Publication Date
20260508
Application Date
20250530

Claims (7)

  1. 1. The utility model provides a high-efficient heat recovery unit of boiler primary air, includes waste incinerator (1), its characterized in that: the utility model discloses a garbage incinerator, including waste incinerator, waste air pre-heater, connecting pipe, air pump, air inlet pipe, air pump, return pipe (7) of the outside fixedly connected with primary air pre-heater (3) of waste incinerator (1), top fixedly connected with primary air pre-heater (3) of primary air pre-heater (1), top fixedly connected with connecting pipe (5) of primary air pre-heater (3), the inside fixedly connected with return pipe (7) of the inside fixedly connected with multirow setting of primary air pre-heater (3), the bottom fixedly connected with fixed section of thick bamboo (6) of primary air pre-heater (1), the bottom fixedly connected with intake pipe (16) of primary air pre-heater (3), the one end that fixed section of thick bamboo (6) was kept away from to intake pipe (16) extends to in the furnace of waste incinerator (1), the outside fixedly mounted air pump (8) of primary air pre-heater (3) output extends to the inside of primary air pre-heater (3).
  2. 2. The efficient heat energy recovery device for primary air of a boiler according to claim 1, wherein a filter assembly is arranged at the top end of the garbage incinerator (1), the filter assembly comprises a filter cylinder (4) fixedly connected to the top end of the garbage incinerator (1), a plurality of replacement plates (11) are inserted into the filter cylinder (4), and filter screens (12) are fixedly connected to the inner parts of the replacement plates (11).
  3. 3. The efficient heat energy recovery device for primary air of a boiler according to claim 1, wherein an air suction assembly is arranged at the bottom end of the primary air-air preheater (3), the air suction assembly comprises a fixing frame (9) fixedly connected inside a fixing cylinder (6), and an air suction fan (10) is fixedly arranged inside the fixing frame (9).
  4. 4. The efficient heat energy recovery device for primary air of a boiler according to claim 2, wherein the top end of the return pipe (7) extends to the outer side of the primary air-air preheater (3) and is fixedly connected with the connecting pipe (5), one end of the connecting pipe (5) away from the primary air-air preheater (3) extends to the inside of the filter cylinder (4), the bottom of the filter cylinder (4) is fixedly connected with an exhaust pipe, and one end of the exhaust pipe away from the filter cylinder (4) extends to the inside of the garbage incinerator (1).
  5. 5. The efficient heat energy recovery device for primary air of a boiler according to claim 1, wherein a temperature sensor (13) is fixedly arranged in the primary air-air preheater (3), a warning lamp (14) is fixedly arranged on the outer side of the primary air-air preheater (3), and a controller is fixedly arranged on the rear side of the primary air-air preheater (3).
  6. 6. The efficient heat energy recovery device for primary air of a boiler according to claim 2, wherein sealing gaskets are fixedly connected to the outer sides of the replacement plates (11), an exhaust port is fixedly connected to the top end of the annular box (2), and an insulating layer (15) is fixedly connected to the outer sides of the primary air-air preheater (3).
  7. 7. The efficient heat energy recovery device for primary air of a boiler according to claim 1 is characterized in that a one-way valve b is fixedly arranged in the output end of the air pump (8), and a one-way valve a (17) is fixedly arranged at one end of the air inlet pipe (16) close to the garbage incinerator (1).

Description

Boiler primary air high-efficiency heat energy recovery device Technical Field The utility model relates to the technical field of garbage incinerators, in particular to a boiler primary air high-efficiency heat energy recovery device. Background The incinerator is a harmless treatment device commonly used in the aspects of harmless treatment of medical and domestic waste and animals, and the principle of the incinerator is to burn and carbonize objects to be treated at high temperature by using fuels such as coal, fuel oil, fuel gas and the like so as to achieve the aim of disinfection. Through retrieving, chinese patent discloses a recoverable waste incineration grate device (grant bulletin number CN 217082572U), including burning furnace and hatch door, the side articulated hatch door of burning furnace, burn burning furnace inner wall both sides and install a plurality of equidistantly distributed burn the frame, burn the problem of burning furnace unable to carry out subregion incineration to different recoverable rubbish is solved through setting up a plurality of burning frames and recovery groove under the frame, the inner wall both sides indent rectangle spout of burning furnace, the sliding connection gyro wheel in the rectangle spout, gyro wheel and recovery groove swing joint, the both sides installation actuating mechanism of burning furnace, actuating mechanism is connected with the recovery groove, the side-mounting second rotating electrical machines of burning furnace, first belt pulley is connected in the transmission of second rotating electrical machines, first belt pulley connection first conveying mechanism, first conveying mechanism is located burning furnace, set up second conveying mechanism under the first conveying mechanism, this patent technology is nevertheless can be solved through setting up a plurality of burning frames and recovery groove and burn burning furnace unable to different recoverable rubbish in subregions burn, time spent when burning different recoverable rubbish by the branch times has been reduced, and the incineration efficiency of rubbish has been further improved simultaneously. However, the above-mentioned device still has some drawbacks in practical use, and it is obvious that the garbage incinerator will generate a lot of dust-carrying gas during operation, and these gases are usually discharged through the exhaust pipe at the top, however, when the exhaust pipe directly discharges, because a lot of dust is carried, serious pollution is caused, and at the same time, a lot of heat generated during incineration cannot be well utilized, and thus resource waste is caused. Disclosure of utility model In view of the foregoing problems in the prior art, a primary air efficient heat energy recovery device for a boiler is provided. The technical scheme of the utility model is that the efficient heat energy recovery device for the primary air of the boiler comprises a garbage incinerator, wherein a primary air-air preheater is fixedly connected to the outer side of the garbage incinerator, a connecting pipe is fixedly connected to the top end of the primary air-air preheater, a plurality of rows of return pipes are fixedly connected to the inner part of the primary air-air preheater, an annular box is fixedly connected to the outer side of the garbage incinerator, a fixed cylinder is fixedly connected to the bottom of the primary air-air preheater, an air inlet pipe is fixedly connected to the bottom of the fixed cylinder, one end of the air inlet pipe, which is far away from the fixed cylinder, extends into a hearth of the garbage incinerator, an air pump is fixedly arranged on the outer side of the primary air-air preheater, and the output end of the air pump extends into the primary air-air preheater. Through adopting above-mentioned technical scheme, through the effect of air pump, can be with outside normal atmospheric temperature air suction to the inside of a wind air preheater to make the normal atmospheric temperature air in high temperature steam and the wind air preheater of a time carry out the heat transfer, make the temperature of normal atmospheric temperature air constantly improve, finally, send into the furnace in the garbage incinerator with the help of the intake pipe with the air through the subassembly that induced drafts, and then can provide sufficient oxygen volume for the garbage combustion. As a preferred implementation mode, the top of garbage incinerator is provided with filtering component, filtering component includes the cartridge filter of fixed connection on garbage incinerator top, the inside of cartridge filter is pegged graft and is had a plurality of change boards, the inside of changing the board is all fixedly connected with filter screen. Through adopting above-mentioned technical scheme, through the use of a plurality of filter screens, can carry out filtration treatment to ascending high temperature steam, reducible impur