CN218846444U

CN218846444U - Hot air generator

Info

Publication number: CN218846444U
Application number: CN202223147387.2U
Authority: CN
Inventors: 李晓东; 陆杏军; 张晔
Original assignee: Jiangsu Daojie Environmental Technology Co ltd
Current assignee: Jiangsu Daojie Environmental Technology Co ltd
Priority date: 2022-11-27
Filing date: 2022-11-27
Publication date: 2023-04-11
Anticipated expiration: 2032-11-27

Abstract

The utility model discloses a hot-blast generator, including the combustor, on the barrel including the combustor arranges, inner tube inner chamber is the combustion chamber, and the combustor arranges interior barrel front end, interior barrel rear end is equipped with the confined end plate, and interior barrel is arranged outward and is provided with outer barrel, and interior barrel front end is fixed in outer barrel front end department, and it is internal that interior barrel rear end is located the urceolus, forms the mixing chamber between outer barrel and the interior barrel, is equipped with on the outer barrel to preheat flue gas import and mixed exhanst gas outlet with treating of mixing chamber intercommunication, is equipped with a plurality of flue gas passageways with combustion chamber and mixing chamber intercommunication on the interior barrel. The utility model discloses in the utility model discloses set up the mixing chamber with the combustion chamber outward, can make the combustor burning abundant, realize carbon monoxide emission to reach standard.

Description

Hot air generator

Technical Field

The utility model relates to a combustor field especially relates to a hot-blast generator.

Background

At present, the combined denitration measures of SNCR and SCR are mostly adopted for nitrogen oxides in smoke generated by incineration in China; SNCR is generally removed at a high-temperature section of a hearth; the reaction temperature interval of the SCR is relatively low; is caused by the technical specifications of the hazardous waste burning industry and the salt-containing materials in the lithium battery industry; flue gas entering the SCR needs to be deacidified firstly; heating the deacidified flue gas, and then entering an SCR reactor for denitration treatment; in general, the heating is carried out by directly heating the flue gas to a reasonable temperature required by SCR by using a hot blast stove and clean fuel.

In the traditional hot blast stove, a burner is directly arranged in the hot blast stove; after entering the hot blast stove, the flue gas is directly heated by a burner, so that the temperature of the flue gas is raised from about 60 ℃ to about 220 ℃; in the process, the burner is limited by the temperature of the flue gas at the outlet of 220 ℃; the fuel is disturbed by entering the preheated flue gas and can not be fully combusted, so that the carbon monoxide in the flue gas exceeds the standard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot-blast generator.

The utility model discloses an innovation point lies in setting up the mixing chamber with the combustion chamber outward, when rising temperature to the required temperature of SCR denitration to the low temperature flue gas, can make the combustor burning abundant, realizes carbon monoxide emission to reach standard.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

the utility model provides a hot-blast generator, including the combustor, a serial communication port, the combustor is arranged on the barrel including, inner cylinder inner chamber is the combustion chamber, the combustor arranges interior barrel front end, interior barrel rear end is equipped with the confined end plate, interior barrel is arranged outward and is provided with outer barrel, interior barrel front end is fixed in outer barrel front end department, interior barrel rear end is located the urceolus internally, form the mixing chamber between barrel and the outer barrel in the outer barrel, be equipped with on the outer barrel with treating of mixing chamber intercommunication preheat the flue gas import and mix the exhanst gas outlet, be equipped with a plurality of flue gas passageways with combustion chamber and mixing chamber intercommunication on the interior barrel.

The combustor works, and high-temperature flue gas generated in the combustion chamber enters the mixing chamber from the flue gas channel; the flue gas to be preheated is introduced into the flue gas inlet to be preheated, the high-temperature flue gas is mixed with the flue gas to be preheated, the combustion of the burner is not influenced by the flue gas to be preheated, the combustion is more sufficient, and the standard content of carbon monoxide in the mixed flue gas is reduced.

Preferably, the outer cylinder body is provided with a temperature measuring hole. Used for detecting the temperature of the mixed flue gas.

Preferably, a plurality of guide plates are arranged on the periphery of the combustion chamber and are positioned between the flue gas channel and the flue gas inlet to be preheated. The guide plate guides the flow of the flue gas to be preheated to the flue gas channel and mixes the flue gas with the flue gas in the flue gas channel.

Preferably, the flue gas channels are arranged on the end plate of the inner cylinder and the wall body of the inner cylinder, the flue gas channels on the wall body are uniformly distributed along the circumferential direction of the inner cylinder, and the flue gas channels on the end plate are uniformly distributed around the center of the end plate. High-temperature flue gas in the combustion chamber can be uniformly dispersed from the inner cylinder body through the flue gas channel, so that heat is not concentrated in a local area.

Preferably, the guide plates are uniformly distributed along the periphery of the inner cylinder, the extending direction of the guide plates is along the tangential direction of the periphery of the inner cylinder, the guide plates incline towards the side of the end plate of the inner cylinder, and the inclination angle between the guide plates and the inner cylinder is 30 degrees. The flue gas to be preheated is easier to form rotational flow, the mixing time of the flue gas to be preheated and the high-temperature flue gas coming out from the flue gas channel is prolonged, and the mixing is more sufficient.

Preferably, the outer cylinder body is provided with an observation port, and the observation port is provided with high-temperature-resistant glass. The condition in the outer cylinder body can be inspected through the observation port.

Preferably, the inner cylinder comprises an outer mantle and a liner inside the mantle. The lining has the characteristics of fire resistance and heat preservation, and the service life of the inner cylinder body is prolonged.

The utility model has the advantages that:

1. the utility model discloses set up the mixing chamber with the combustion chamber outward, can make the combustor burning abundant, realize carbon monoxide emission to reach standard.

2. The utility model discloses in carry out the water conservancy diversion through the guide plate, will wait to preheat flue gas direction flue gas passageway department, mix with the flue gas of flue gas passageway department.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a baffle configuration.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a schematic structural view of a flue gas channel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1 to 4, a hot air generator comprises a burner 1, the burner 1 is arranged on an inner cylinder 2, the inner cylinder 2 comprises an outer casing 2.3 and a lining 2.4 on the inner side of the casing 2.3, a combustion chamber 4 is arranged in an inner cavity of the inner cylinder 2, the burner 1 is arranged at the front end of the inner cylinder 2, a closed end plate 2.1 is arranged at the rear end of the inner cylinder 2, an outer cylinder 3 is arranged outside the inner cylinder 2, the front end of the inner cylinder 2 is fixed at the front end of the outer cylinder 3, the rear end of the inner cylinder 2 is positioned in the outer cylinder 3, a mixing chamber 5 is formed between the outer cylinder 3 and the inner cylinder 2, a flue gas inlet 3.1 to be preheated and a mixed flue gas outlet 3.2 which are communicated with the mixing chamber 5 are arranged on the outer cylinder 3, a plurality of flue gas channels 2.2 which are used for communicating the combustion chamber 4 with the mixing chamber 5 are arranged on the inner cylinder 2, a plurality of guide plates 6 are arranged on the periphery of the combustion chamber 4, the extension direction of the guide plates 6 is along the tangential direction of the periphery of the inner cylinder 2, the guide plates 6 incline towards the end plate 2.1 side of the inner cylinder, the inclination angle between the guide plates 6 and the inner cylinder 2 is 30 degrees, the guide plates 6 are positioned between the flue gas channels 2.2 and a flue gas inlet 3.1 to be preheated, the flue gas channels 2.2 are arranged on the end plate 2.1 of the inner cylinder and the wall body of the inner cylinder 2, the flue gas channels 2.2 on the wall body are uniformly distributed along the circumferential direction of the inner cylinder 2, the flue gas channels 2.2 on the end plate 2.1 are uniformly distributed around the circle center of the end plate 2.1, and the guide plates 6 are uniformly distributed along the periphery of the inner cylinder 2; the outer cylinder 3 is provided with a temperature measuring hole 3.3, the outer cylinder 3 is provided with an observation port 3.4, and the observation port 3.4 is provided with high temperature resistant glass.

When the combustor works, the combustor 1 works, and high-temperature flue gas generated in the combustion chamber 4 enters the mixing chamber 5 from the flue gas channel 2.2; the flue gas to be preheated is introduced into the flue gas inlet 3.1 to be preheated, the flue gas to be preheated can cool the inner cylinder 2.3, the guide plate 6 guides the flow, the high-temperature flue gas and the flue gas to be preheated are mixed in the mixing chamber 5, and the mixed flue gas flows out from the mixed flue gas outlet 3.2.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides a hot-blast generator, which comprises a burner, a serial communication port, the combustor is arranged on the barrel including, inner tube body inner chamber is the combustion chamber, the combustor arranges interior barrel front end, interior barrel rear end is equipped with the confined end plate, interior barrel is arranged outward and is had outer barrel, interior barrel front end is fixed in outer barrel front end department, interior barrel rear end is located the urceolus internally, form the mixing chamber between outer barrel and the interior barrel, be equipped with on the outer barrel with treating of mixing chamber intercommunication preheat the flue gas import and mix the exhanst gas outlet, be equipped with a plurality of flue gas passageways with combustion chamber and mixing chamber intercommunication on the interior barrel.

2. The hot wind generator according to claim 1, wherein the outer cylinder has temperature measuring holes disposed thereon.

3. The hot air generator according to claim 1, wherein a plurality of baffles are arranged around the combustion chamber, the baffles being located between the flue gas channel and the inlet for flue gas to be preheated.

4. The hot air generator according to claim 3, wherein the flue gas passages are arranged in the end plate of the inner cylinder and in the wall body of the inner cylinder, the flue gas passages in the wall body being evenly distributed along the circumference of the inner cylinder, the flue gas passages in the end plate being evenly distributed around the center of the end plate.

5. The hot wind generator according to claim 4, wherein the guide plates are uniformly distributed along the outer circumference of the inner cylinder, the extension direction of the guide plates is along the tangential direction of the outer circumference of the inner cylinder, the guide plates are inclined toward the end plate side of the inner cylinder, and the inclination angle of the guide plates to the inner cylinder is 30 °.

6. The hot air generator as claimed in claim 1, wherein the outer cylinder has a viewing port, and the viewing port is provided with high temperature resistant glass.

7. The hot wind generator of claim 1, wherein the inner cylinder comprises an outer shell and a liner inside the shell.