CN218914955U

CN218914955U - Waste heat recovery boiler for sludge incineration

Info

Publication number: CN218914955U
Application number: CN202222935032.3U
Authority: CN
Inventors: 陈保全; 李盘威; 舒小盼; 叶枫
Original assignee: Quzhou Datong Boiler Co ltd
Current assignee: Zhejiang Datong Clean Energy Equipment Manufacturing Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-04-25
Anticipated expiration: 2032-11-04

Abstract

The utility model relates to the technical field of sludge incineration boilers, and discloses a waste heat recovery boiler for sludge incineration, which comprises a boiler body, wherein an air blower is fixedly arranged at the upper end of the boiler body, a heat conduction bin is fixedly arranged at the outer side of the boiler body, an air inlet pipe is fixedly arranged at the lower end of the heat conduction bin, a heat insulation sleeve is fixedly arranged at the outer side of the air inlet pipe, and a water inlet pipe is fixedly arranged at the outer side of the heat conduction bin. This a steam that burns and produce in being arranged in mud burns waste heat recovery boiler carries heat conduction storehouse through the air-blower, in rivers carried heat conduction storehouse, carries out the heat exchange through heat exchange pipe and steam, and steam is carried in the runner outside the air-supply line, preheats combustion-supporting gas, and in the steam reentrant heat conduction storehouse after the secondary heat exchange, in carrying the rivers with surplus heat, reach the effect of tertiary heat exchange, furthest carries out recycle to burning waste heat.

Description

Waste heat recovery boiler for sludge incineration

Technical Field

The utility model relates to the technical field of sludge incineration boilers, in particular to a waste heat recovery boiler for sludge incineration.

Background

Sludge is a solid precipitate produced in the water and sewage treatment process, and a sludge incineration boiler is harmless treatment equipment for harmless treatment of sludge, and the principle of the sludge incineration boiler is that the sludge to be treated is subjected to high-temperature incineration carbonization by using combustion of fuels such as coal, fuel oil, fuel gas and the like so as to achieve the aim of disinfection.

Most of the sludge incineration boilers at present have small volume, hot gas generated by incineration is directly discharged into the atmosphere, and a large amount of heat in the hot gas is directly lost and cannot be recycled, so that waste is caused.

The prior art scheme (Chinese patent publication No. CN 207741343U) discloses a slag waste heat recovery boiler, hot gas generated by incineration is transmitted into a boiler liner to heat water, the hot gas in the comparison patent is directly discharged after primary heat exchange, the heat in the hot gas cannot be fully utilized, and the heat exchange efficiency is lower.

Disclosure of Invention

The utility model aims to provide a sludge incineration waste heat recovery boiler, which is used for solving the technical problems that the heat exchange efficiency is low and the heat cannot be fully utilized 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 be used for mud to burn waste heat recovery boiler, includes the boiler body, the upper end fixed mounting of boiler body has the air-blower, the outside fixed mounting of boiler body has the heat conduction storehouse, the lower extreme fixed mounting of heat conduction storehouse has the air-supply line, the outside fixed mounting of air-supply line has the insulating sheath, the outside fixed mounting of heat conduction storehouse has the inlet tube, the upper end fixed mounting of heat conduction storehouse has the outlet pipe, cavity one, cavity two and cavity three have been seted up to the inside of heat conduction storehouse, the inside fixed mounting of heat conduction storehouse has the heat exchange tube, the outside fixed mounting of heat conduction storehouse has the connecting pipe, the runner has been seted up to the inside of insulating sheath, the outside fixed mounting of heat conduction storehouse has the tuber pipe.

Preferably, the lower extreme fixed mounting of boiler body has the support, the air intake of air-blower extends to the inside of boiler body, the air outlet of air-blower is put through each other with the upper end of cavity two, and mud burns in the boiler body, and the air-blower will burn the steam that produces and transmit in the cavity two.

Preferably, the water inlet pipe is communicated with the lower end of the first cavity, the water outlet pipe is communicated with the upper end of the first cavity, the water inlet pipe is connected with a water supply system, and water flow enters the first cavity through the water inlet pipe and is discharged through the water outlet pipe.

Preferably, the heat exchange tubes are symmetrically arranged in a plurality, one ends of the heat exchange tubes extend to the inside of the first cavity, the other ends of the heat exchange tubes extend to the inside of the second cavity and the inside of the third cavity respectively, and the heat exchange tubes transfer heat to each other in the first cavity, the second cavity and the third cavity.

Preferably, one end of the connecting pipe is communicated with the lower end of the second cavity, the other end of the connecting pipe extends to one end of the runner, the runner is spiral, the runner is attached to the outer side of the air inlet pipe, the air inlet pipe is of an L-shaped structure, the air inlet pipe extends to the inside of the boiler body, combustion-supporting gas is transmitted to the inside of the boiler body through the air inlet pipe, hot gas is transmitted to the runner through the connecting pipe after passing through the second cavity, heat of the hot gas is transmitted to the air inlet pipe again, and the combustion-supporting gas is preheated.

Preferably, the other end of the runner is communicated with the lower end of the cavity III, the air outlet pipe is communicated with the upper end of the cavity III, hot air in the runner is then transmitted to the cavity III, and the rest heat is transmitted to the cavity I through the heat exchange pipe.

Compared with the prior art, the utility model has the beneficial effects that: this a heat conduction storehouse is set up in being used for mud to burn waste heat recovery boiler outside, the steam that burns and produce is transmitted in the heat conduction storehouse through the air-blower, rivers are transmitted in the heat conduction storehouse, carry out the heat exchange through heat exchange pipe and steam, the heat conduction storehouse is connected with the air-supply line, the steam is then transmitted in the runner outside the air-supply line, preheat combustion-supporting gas, the steam reentrant heat conduction storehouse after the secondary heat exchange is in, with remaining heat transmission to rivers, reach the effect of tertiary heat exchange, furthest carries out recycle to burning waste heat.

Drawings

In order to more clearly illustrate the technical solutions of the inventive embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only examples of the inventive embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need of inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front view of an embodiment of the present utility model;

FIG. 3 is a schematic side view of an embodiment of the present utility model;

fig. 4 is a schematic diagram of an internal structure of a heat conducting bin according to an embodiment of the utility model.

Wherein: 1. a boiler body; 2. a blower; 3. a heat conduction bin; 4. an air inlet pipe; 5. a heat insulating sleeve; 6. a water inlet pipe; 7. a water outlet pipe; 8. a first cavity; 9. a second cavity; 10. a cavity III; 11. a heat exchange tube; 12. a connecting pipe; 13. a flow passage; 14. and (5) an air outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the inventive embodiments of the present utility model more apparent, the inventive implementation routine will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present utility model.

In the description of the inventive embodiments, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the inventive embodiments and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the inventive embodiments.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly coupled, integrally coupled, or detachably coupled; may be a communication between the interiors of two elements; either directly or indirectly through intermediaries, the specific meaning of the terms in the inventive embodiments of the present utility model will be understood by those skilled in the art in the specific case.

Referring to fig. 1-4, the embodiment of the utility model is used for a sludge incineration waste heat recovery boiler, which comprises a boiler body 1, wherein an air blower 2 is fixedly arranged at the upper end of the boiler body 1, a bracket is fixedly arranged at the lower end of the boiler body 1, an air inlet of the air blower 2 extends into the boiler body 1, a heat conduction bin 3 is fixedly arranged at the outer side of the boiler body 1, an air inlet pipe 4 is fixedly arranged at the lower end of the heat conduction bin 3, a heat insulation sleeve 5 is fixedly arranged at the outer side of the air inlet pipe 4, a water inlet pipe 6 is fixedly arranged at the outer side of the heat conduction bin 3, a water outlet pipe 7 is fixedly arranged at the upper end of the heat conduction bin 3, a first cavity 8, a second cavity 9 and a third cavity 10 are formed in the inner side of the heat conduction bin 3, the water inlet pipe 6 is mutually communicated with the lower end of the first cavity 8, the water outlet pipe 7 is mutually communicated with the upper end of the first cavity 8, a heat exchange pipe 11 is fixedly arranged in the heat exchange pipe 11, one end of the heat exchange pipe 11 extends into the first cavity 8, the other end of the heat exchange pipe 11 extends into the second cavity 9 and the third cavity 10 respectively, the air outlet of the air blower 2 is mutually communicated with the upper end of the second cavity 9, and the first cavity 9 is mutually communicated with the second cavity 6 through the water inlet pipe 6 and the first cavity and the third cavity 8, and the second cavity is mutually communicated with the second cavity 8, and the heat is mutually communicated with the first cavity 8, and the third cavity is communicated with the first and the third cavity is communicated with the heat inlet and the water through the first and the third cavity and the heat inlet pipe 2.

The outside fixed mounting in heat conduction storehouse 3 has connecting pipe 12, runner 13 has been seted up to the inside of insulating sheath 5, the one end of connecting pipe 12 and the lower extreme of cavity two 9 are put through each other, the other end of connecting pipe 12 extends to the one end of runner 13, runner 13 is the heliciform, runner 13 is laminated with the outside of air-supply line 4, air-supply line 4 is "L" type structure, inside air-supply line 4 extends to boiler body 1, the outside fixed mounting in heat conduction storehouse 3 has out tuber pipe 14, combustion-supporting gas passes through inside air-supply line 4 to boiler body 1, after cavity two 9 are inside, the steam passes through connecting pipe 12 to be transmitted to runner 13, the heat of steam is in the re-transmission air-supply line 4, preheat combustion-supporting gas.

The other end of the flow channel 13 is communicated with the lower end of the cavity III 10, the air outlet pipe 14 is communicated with the upper end of the cavity III 10, hot air in the flow channel 13 is then transmitted to the cavity III 10, and the rest heat is transmitted to the cavity I8 through the heat exchange pipe 11.

Working principle: the sludge is burnt in the boiler body 1, the water inlet pipe 6 is connected with a water supply system, the air blower 2 transmits hot air generated by burning into the cavity II 9, water flows into the cavity I8 through the water inlet pipe 6, heat in the hot air of the cavity II 9 is transmitted into the cavity I8 through the heat exchange pipe 11, the hot air passes through the inside of the cavity II 9 and then is transmitted into the runner 13 through the connecting pipe 12, combustion-supporting gas is transmitted into the boiler body 1 through the air inlet pipe 4, heat of the hot air of the runner 13 is transmitted into the air inlet pipe 4 again, the combustion-supporting gas is preheated, the hot air in the runner 13 is transmitted into the cavity III 10, the residual heat is transmitted into the cavity I8 through the heat exchange pipe 11, secondary heating is carried out on water, finally, the heated water is discharged from the water outlet pipe 7 through the air outlet pipe 14, and the full recovery of waste heat of burning is realized.

While the basic principles of the present utility model have been shown and described, the foregoing is provided by way of illustration of a preferred embodiment of the utility model, and not by way of limitation, the foregoing embodiment and description are merely illustrative of the principles of the utility model, and any modifications, equivalents, improvements or modifications not within the spirit and scope of the utility model should be included within the scope of the utility model.

Claims

1. Be used for sludge incineration waste heat recovery boiler, including boiler body (1), its characterized in that: the boiler comprises a boiler body (1), wherein an air blower (2) is fixedly arranged at the upper end of the boiler body (1), a heat conduction bin (3) is fixedly arranged at the outer side of the boiler body (1), an air inlet pipe (4) is fixedly arranged at the lower end of the heat conduction bin (3), a heat insulation sleeve (5) is fixedly arranged at the outer side of the air inlet pipe (4), a water outlet pipe (7) is fixedly arranged at the upper end of the heat conduction bin (3), a first cavity (8), a second cavity (9) and a third cavity (10) are formed in the heat conduction bin (3), a heat exchange pipe (11) is fixedly arranged in the heat conduction bin (3), a connecting pipe (12) is fixedly arranged at the outer side of the heat conduction bin (3), a flow channel (13) is formed in the heat insulation sleeve (5), and a discharge pipe (14) is fixedly arranged at the outer side of the heat conduction bin (3).

2. The waste heat recovery boiler for sludge incineration according to claim 1, wherein: the boiler is characterized in that a support is fixedly arranged at the lower end of the boiler body (1), an air inlet of the air blower (2) extends into the boiler body (1), and an air outlet of the air blower (2) is communicated with the upper end of the cavity II (9).

3. The waste heat recovery boiler for sludge incineration according to claim 1, wherein: the water inlet pipe (6) is communicated with the lower end of the first cavity (8), and the water outlet pipe (7) is communicated with the upper end of the first cavity (8).

4. The waste heat recovery boiler for sludge incineration according to claim 1, wherein: the heat exchange tubes (11) are symmetrically arranged in a plurality, one end of each heat exchange tube (11) extends into the cavity I (8), and the other end of each heat exchange tube (11) extends into the cavity II (9) and the cavity III (10) respectively.

5. The waste heat recovery boiler for sludge incineration according to claim 1, wherein: one end of the connecting pipe (12) is communicated with the lower end of the cavity II (9), the other end of the connecting pipe (12) extends to one end of the runner (13), the runner (13) is spiral, the runner (13) is attached to the outer side of the air inlet pipe (4), the air inlet pipe (4) is of an L-shaped structure, and the air inlet pipe (4) extends to the inside of the boiler body (1).

6. The waste heat recovery boiler for sludge incineration according to claim 1, wherein: the other end of the flow channel (13) is communicated with the lower end of the cavity III (10), and the air outlet pipe (14) is communicated with the upper end of the cavity III (10).