CN215523327U

CN215523327U - Catalytic incinerator waste heat recovery mechanism

Info

Publication number: CN215523327U
Application number: CN202120911102.4U
Authority: CN
Inventors: 林蔚丞
Original assignee: Shanghai Kaiphone Environmental Engineering Co ltd
Current assignee: Shanghai Kaiphone Environmental Engineering Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-01-14
Anticipated expiration: 2031-04-29

Abstract

The utility model discloses a waste heat recovery mechanism of a catalytic incinerator, which comprises an incinerator main body, wherein an air inlet and a smoke outlet are arranged on the incinerator main body, a smoke primary cooling mechanism butted with the smoke outlet is arranged on the incinerator main body, the smoke primary cooling mechanism is connected with an air preheating cylinder through a first smoke guide pipe, the air preheating cylinder comprises a preheating cylinder body, a heat exchange cavity is arranged inside the preheating cylinder body, a heat exchange pipe is arranged in the heat exchange cavity in a spiral mode, a waste gas inlet pipe and a waste gas outlet pipe which are connected with the end portion of the heat exchange pipe are arranged on the preheating cylinder body, and a smoke inlet pipe and a smoke outlet pipe which are communicated with the heat exchange cavity are arranged on the preheating cylinder body. The utility model carries out primary cooling on the flue gas, avoids explosion caused by overhigh temperature of the flue gas and overhigh temperature of the waste gas after heat exchange, and plays a role in heat insulation.

Description

Catalytic incinerator waste heat recovery mechanism

Technical Field

The utility model relates to the technical field of waste incineration treatment, in particular to a waste heat recovery mechanism of a catalytic incinerator.

Background

At present, with the improvement of environmental protection requirements, industrial exhaust gas, especially exhaust gas of organic solvents, needs to be incinerated and then exhausted. Because the oxidative decomposition of the organic solvent must exceed 760 ℃ to completely decompose the organic solvent into harmless gases such as carbon dioxide, water and the like, the conventional incinerator generally recovers waste heat to preheat the waste gas, the temperature of the discharged flue gas is generally 400-500 ℃, and a great deal of waste of the discharged heat is caused, and the atmospheric environment is influenced. The flue pipe in the incinerator with the waste heat recovery mechanism is directly connected with the incinerator body, wherein the end part connected with a flue pipe smoke outlet is heated to seriously cause damage, and the phenomenon of flue gas leakage is easily caused. Therefore, we improve the waste heat recovery mechanism of the catalytic incinerator.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a waste heat recovery mechanism of a catalytic incinerator, which comprises an incinerator body, wherein an air inlet and a smoke outlet are arranged on the incinerator body, a smoke primary cooling mechanism butted with the smoke outlet is arranged on the incinerator body, the smoke primary cooling mechanism is connected with an air preheating cylinder through a first smoke guide pipe, the air preheating cylinder comprises a preheating cylinder body, a heat exchange cavity is arranged inside the preheating cylinder body, a spirally arranged heat exchange pipe is arranged in the heat exchange cavity, a waste gas inlet pipe and a waste gas outlet pipe which are connected with the end part of the heat exchange pipe are arranged on the preheating cylinder body, a smoke inlet pipe and a smoke outlet pipe which are communicated with the heat exchange cavity are arranged on the preheating cylinder body, the smoke outlet pipe is connected with a first fan through a second smoke guide pipe, the first smoke guide pipe is connected with the smoke inlet pipe, and the air inlet is connected with the waste gas outlet pipe through a first air guide pipe, and a second fan is arranged on the first air duct, and the end part of the waste gas inlet pipe is connected with a second air duct.

As a preferred technical scheme of the utility model, the flue gas primary cooling mechanism comprises a butt joint pipe butted with the flue gas outlet, a cooling cavity spirally arranged along the butt joint pipe is arranged on the butt joint pipe, a water inlet pipe and a water outlet pipe connected with the cooling cavity are arranged on the butt joint pipe, a positioning flange is arranged on the butt joint pipe, and the positioning flange is fixed with the outer wall of the incinerator body through a fixing bolt.

As a preferable technical scheme of the utility model, the side wall of the incinerator body is provided with a screw hole matched with the fixing bolt.

As a preferable technical scheme of the utility model, a plurality of flow slowing fins are arranged inside the heat exchange tube.

As a preferred technical scheme of the utility model, the outer wall of the heat exchange tube is provided with heat exchange fins.

As a preferable technical scheme of the utility model, the heat exchange tube is made of copper materials.

The utility model has the beneficial effects that: 1. according to the waste heat recovery mechanism of the catalytic incinerator, the flue gas is preliminarily cooled through the flue gas preliminary cooling mechanism at the smoke outlet, so that explosion caused by overhigh temperature of the flue gas and overhigh temperature of waste gas after heat exchange is avoided, a heat insulation effect is achieved, and the connecting pipe connected with the incinerator body is effectively prevented from being seriously damaged due to heating; and this practicality carries out heat better through the flue gas with the higher flue gas of temperature and area burning, has effectively improved the temperature of waiting to burn the flue gas, is convenient for burn, can be waste gas fully burning when burning it.

2. This kind of preliminary cooling mechanism through setting up specific mechanism among catalytic incinerator waste heat recovery mechanism cools off thermal-insulated, mainly let in recirculated cooling water to the cooling intracavity that the butt joint pipe was held between the fingers through inlet tube and outlet pipe, come to the butt joint pipe cooling, firstly, played preliminary cooling to the flue gas, but played thermal-insulated effect, effectively avoided first leading the tobacco pipe and burnt the direct butt joint of outlet flue in the burning furnace main part, make the tip that leads the tobacco pipe and outlet flue to be connected be heated and seriously cause the damage, and cause the flue gas to reveal the phenomenon.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a catalytic incinerator waste heat recovery mechanism of the present invention;

FIG. 2 is a schematic structural diagram of an air preheating cylinder of a catalytic incinerator waste heat recovery mechanism according to the present invention;

FIG. 3 is a schematic structural diagram of a flue gas primary cooling mechanism of a catalytic incinerator waste heat recovery mechanism according to the present invention;

FIG. 4 is a schematic structural diagram of a slow flow fin of a catalytic incinerator waste heat recovery mechanism.

In the figure: 1. an incinerator body; 2. a flue gas primary cooling mechanism; 3. a first smoke guide pipe; 4. (ii) a 5. An air preheating cylinder; 6. preheating a cylinder body; 7. a heat exchange cavity; 8. a heat exchange pipe; 9. an exhaust gas inlet pipe; 10. an exhaust gas outlet pipe; 11. a flue gas inlet pipe; 12. a flue gas outlet pipe; 13. a second smoke guide pipe; 14. a first fan; 15. butt-joint pipes; 16. a cooling chamber; 17. a water inlet pipe; 18. a water outlet pipe; 19. positioning the flange; 20. a slow flow fin; 21. heat exchange fins; 22. a first air duct; 23. a second fan; 24. a second air duct.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1, 2, 3 and 4, the catalytic incinerator waste heat recovery mechanism of the present invention comprises an incinerator main body 1, wherein the incinerator main body 1 is provided with an air inlet and a smoke outlet, the incinerator main body 1 is provided with a flue gas primary cooling mechanism 2 butted with the smoke outlet, the flue gas primary cooling mechanism 2 is connected with an air preheating cylinder 4 through a first smoke guiding pipe 3, the air preheating cylinder 4 comprises a preheating cylinder body 6, a heat exchange cavity 7 is arranged inside the preheating cylinder body 6, a heat exchange pipe 8 arranged in a spiral manner is arranged in the heat exchange cavity 7, the preheating cylinder body 6 is provided with a waste gas inlet pipe 9 and a waste gas outlet pipe 10 connected with the end of the heat exchange pipe 8, the preheating cylinder body 6 is provided with a flue gas inlet pipe 11 and a flue gas outlet pipe 12 communicated with the heat exchange cavity 7, the flue gas outlet pipe 12 is connected with a first fan 14 through a second smoke guiding pipe 13, the first smoke guide pipe 3 is connected with a smoke inlet pipe 11, the air inlet is connected with a waste gas outlet pipe 10 through a first air guide pipe 22, a second fan 23 is arranged on the first air guide pipe 22, the end part of the waste gas inlet pipe 9 is connected with a second air guide pipe 24, the smoke is preliminarily cooled through a smoke preliminary cooling mechanism 2 at a smoke outlet, the situation that the temperature of the smoke is too high and the temperature of waste gas after heat exchange is too high to cause explosion is avoided, the heat insulation effect is achieved, and the situation that a connecting pipe connected with the incinerator body 1 is seriously damaged due to heating is effectively avoided; and this practicality carries out heat better through the flue gas with the higher flue gas of temperature and area burning, has effectively improved the temperature of waiting to burn the flue gas, is convenient for burn, can be waste gas fully burning when burning it.

Wherein, the flue gas primary cooling mechanism 2 comprises a butt joint pipe 15 butted with a flue gas outlet, a cooling cavity 16 spirally arranged along the butt joint pipe 15 is arranged on the butt joint pipe 15, a water inlet pipe 17 and a water outlet pipe 18 connected with the cooling cavity 16 are arranged on the butt joint pipe 15, a positioning flange 19 is arranged on the butt joint pipe 15, the positioning flange 19 is fixed with the outer wall of the incinerator body 1 through a fixing bolt, so as to be convenient for installation and disassembly, the primary cooling mechanism of a specific mechanism is arranged for cooling and heat insulation, circulating cooling water is mainly introduced into the cooling cavity 16 pinched by the butt joint pipe 15 through the water inlet pipe 17 and the water outlet pipe 18 to cool the butt joint pipe 15, firstly, the primary cooling is performed on the flue gas, the heat insulation effect is performed, the direct butt joint of the first smoke guide pipe 3 and the flue gas outlet on the incinerator body 1 is effectively avoided, and the end part of the smoke guide pipe connected with the flue gas outlet is seriously damaged due to heating, thereby causing the smoke leakage phenomenon.

Wherein, the lateral wall of the incinerator body 1 is provided with a screw hole matched with the fixing bolt.

The inside of the heat exchange tube 8 is provided with a plurality of slow flow fins 20, so that the slow flow effect is achieved, the retention and heat exchange time of waste gas in the heat exchange tube 8 is prolonged, and a good heat exchange effect is achieved.

The outer wall of the heat exchange tube 8 is provided with the heat exchange fins 21, so that the heat exchange area is increased, and the heat exchange effect is good.

Wherein, the heat exchange tube 8 is made by the copper product, has the effectual characteristics of heat transfer.

When the smoke-gas primary cooling device works, smoke gas is primarily cooled through the smoke-gas primary cooling mechanism 2 at the smoke outlet, so that explosion caused by overhigh temperature of the smoke gas and overhigh temperature of waste gas after heat exchange is avoided, a heat insulation effect is achieved, and a connecting pipe connected with the incinerator body 1 is effectively prevented from being seriously damaged due to heating; and this practicality carries out heat better through the flue gas with the higher flue gas of temperature and area burning, has effectively improved the temperature of waiting to burn the flue gas, is convenient for burn, can be waste gas fully burning when burning it.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A catalytic incinerator waste heat recovery mechanism comprises an incinerator main body (1), wherein an air inlet and a smoke outlet are formed in the incinerator main body (1), the catalytic incinerator main body (1) is provided with a flue gas primary cooling mechanism (2) butted with the smoke outlet, the flue gas primary cooling mechanism (2) is connected with an air preheating cylinder (4) through a first smoke guide pipe (3), the air preheating cylinder (4) comprises a preheating cylinder body (6), a heat exchange cavity (7) is formed inside the preheating cylinder body (6), a heat exchange pipe (8) in spiral arrangement is arranged in the heat exchange cavity (7), a waste gas inlet pipe (9) and a waste gas outlet pipe (10) which are connected with the end portions of the heat exchange pipe (8) are arranged on the preheating cylinder body (6), a flue gas inlet pipe (11) and a flue gas outlet pipe (12) which are communicated with the heat exchange cavity (7) are arranged on the preheating cylinder body (6), the flue gas outlet pipe (12) is connected with a first fan (14) through a second smoke guide pipe (13), the first smoke guide pipe (3) is connected with a flue gas inlet pipe (11), the air inlet and the waste gas outlet pipe (10) are connected through a first air guide pipe (22), a second fan (23) is arranged on the first air guide pipe (22), and the end part of the waste gas inlet pipe (9) is connected with a second air guide pipe (24).

2. The waste heat recovery mechanism of the catalytic incinerator according to claim 1, characterized in that the flue gas primary cooling mechanism (2) comprises a butt joint pipe (15) butted with the flue gas outlet, a cooling cavity (16) spirally arranged along the butt joint pipe (15) is arranged on the butt joint pipe (15), a water inlet pipe (17) and a water outlet pipe (18) connected with the cooling cavity (16) are arranged on the butt joint pipe (15), a positioning flange (19) is arranged on the butt joint pipe (15), and the positioning flange (19) is fixed with the outer wall of the incinerator body (1) through a fixing bolt.

3. The waste heat recovery mechanism of a catalytic incinerator according to claim 2, characterized in that the side wall of the incinerator body (1) is provided with screw holes for fitting with fixing bolts.

4. A catalytic incinerator waste heat recovery mechanism as claimed in claim 1 wherein said heat exchange tubes (8) are internally provided with a plurality of turbulence fins (20).

5. The waste heat recovery mechanism of the catalytic incinerator according to claim 1, characterized in that the heat exchange tubes (8) are provided with heat exchange fins (21) on the outer wall thereof.

6. A catalytic incinerator waste heat recovery mechanism as claimed in claim 1 wherein said heat exchange tubes (8) are made of copper material.