CN112361358A

CN112361358A - Heat accumulating type waste gas incineration treatment equipment

Info

Publication number: CN112361358A
Application number: CN202011226333.8A
Authority: CN
Inventors: 王楠楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of waste gas treatment equipment, and discloses heat accumulating type waste gas incineration treatment equipment which comprises a combustion furnace body, wherein the combustion furnace body is sequentially provided with an air heat exchange chamber, a waste gas heat exchange chamber and a buffer chamber from bottom to top, the bottom of the combustion furnace body is fixedly connected with a waste gas outlet, and the upper end of the waste gas outlet is fixedly connected with a heat exchanger. Through the surge chamber, the setting of combustion chamber, can avoid high temperature, the impact of whirl waste gas that rises fast to the bocca, prevent that a large amount of waste gas from assaulting the combustor shower nozzle, cause combustor department combustion efficiency step-down, reduce flame temperature and even flame-out, and set up the inflation section in the middle part of the combustion chamber and can make burning flame be enlargied, not only be favorable to contacting with more waste gas, and can play certain cushioning effect, the flue gas of avoiding burning is quick, direct impact heat exchanger, can increase the area of contact of combustion chamber and peripheral surge chamber simultaneously, further increase the temperature when waste gas rises, improve waste gas combustion efficiency.

Description

Heat accumulating type waste gas incineration treatment equipment

Technical Field

The invention relates to the technical field of waste gas treatment equipment, in particular to heat accumulating type waste gas incineration treatment equipment.

Background

The waste gas incinerator is a device which utilizes the heat generated by the combustion of auxiliary fuel to raise the temperature of combustible harmful gas to reaction temperature so as to generate oxidative decomposition. The waste gas incinerator has a direct combustion type and a heat accumulation type, wherein the heat accumulation type waste gas incinerator stores part of heat generated when fuel oil and waste gas in a hearth are combusted together by a heat accumulator (honeycomb ceramics), and the heat accumulation type waste gas incinerator has the functions of preheating the waste gas, enabling the waste gas to be oxidized and combusted more thoroughly when entering the hearth, and even being capable of directly igniting the waste gas, so that the waste gas incinerator obviously saves fuel and energy.

However, the conventional regenerative waste gas incinerator has the following disadvantages in the actual working process: firstly, when a traditional waste gas incinerator is used for carrying out waste gas incineration work, a waste gas inlet of the traditional waste gas incinerator is usually right opposite to a burner flame spray port so as to achieve the effect that waste gas can be rapidly and accurately contacted with combustion flame and can be fully combusted, but in the rising process, the waste gas can reach a very high temperature before entering a combustion chamber because the waste gas is heated by a heat accumulator in advance, the high-temperature waste gas can be violently expanded due to heating to form rapid and high-temperature air flow to cause serious impact on the burner flame spray port, and the waste gas is not easy to be combusted, so that the burning flame which is being combusted in a burner nozzle is easily dispersed, even the waste gas blocks the burner nozzle, serious accidents such as flameout and even tempering are caused, the traditional waste gas incinerator is very unfavorable for full combustion of the waste gas, and the combustion efficiency of the waste gas is seriously influenced; secondly, the waste gas incinerator does not have sufficient air in the actual use process, namely the supply of oxygen, generally only depends on the oxygen in the waste gas to carry out combustion, and although the influence is not great for the waste gas treatment with low waste gas concentration, the waste gas with high concentration often cannot be fully combusted because of lack of oxygen, and the combustion efficiency is seriously influenced.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a heat accumulating type waste gas incineration treatment device which has the advantages of full waste gas combustion, high combustion efficiency and capability of improving the working efficiency of a combustor, and solves the problems in the background technology.

The invention provides the following technical scheme: a heat accumulating type waste gas incineration treatment device comprises a combustion furnace body, wherein an air heat exchange chamber, a waste gas heat exchange chamber and a buffer chamber are sequentially arranged on the combustion furnace body from bottom to top, a waste gas outlet is fixedly connected to the bottom of the combustion furnace body, a heat exchanger is fixedly connected to the upper end of the waste gas outlet, a combustion chamber is fixedly connected to the upper end of the heat exchanger, an air inlet is formed in one side of the bottom of the air heat exchange chamber, a waste gas inlet is formed in one side of the bottom of the waste gas heat exchange chamber, stop blocks are fixedly connected to the inner walls of the air heat exchange chamber and the waste gas heat exchange chamber, an air guide pipe is fixedly connected to one side of the upper portion of the air heat exchange chamber, a combustor is fixedly installed on the upper portion of the buffer chamber, a group of lower air inlets which are, the side surface of the upper air inlet is provided with a volute fixedly connected with the combustion furnace body, and the inlet end of the volute is connected with an air duct.

Preferably, the stop block is arranged in a spiral mode, the inner side of the stop block is in contact seal with the heat exchanger, and the air heat exchange chamber and the waste gas heat exchange chamber are sealed through the stop block.

Preferably, the upper end of the combustion chamber is fixedly and hermetically connected with the combustor, the middle part of the combustion chamber is provided with a heat transfer section which expands outwards, and the position of the heat transfer section is just coincided with the highest temperature of flame of the combustor.

Preferably, the inner wall of the buffer chamber is provided with a thread groove.

Preferably, a closing-in section is arranged in the middle of the burner and is overlapped with the position of the upper air inlet.

The invention has the following beneficial effects:

1. through the arrangement of the buffer chamber and the combustion chamber, and the burner fire hole is isolated from the buffer chamber in which waste gas enters, so that the impact of high-temperature and fast-rising cyclone waste gas on the fire hole can be avoided, the burner nozzle is prevented from being impacted by a large amount of waste gas, the combustion efficiency at the burner is lowered, the flame temperature is reduced, even the flame is extinguished, in the middle of the combustion chamber, the expansion section is arranged at the highest position of the flame temperature, so that the combustion flame can be amplified, the contact with more waste gas is facilitated, the waste gas is fully combusted, a certain buffering effect can be achieved, the combustion flue gas is prevented from fast and directly impacting the heat exchanger, the heat exchanger is prevented from being damaged, the contact area between the combustion chamber and a peripheral buffer chamber can be increased, the temperature when the waste gas rises is further increased, the combustion efficiency of the waste gas is improved, and the thread groove is formed in the inner wall, the gas burner is in a rotating state when reaching the lower air inlet, and is easy to be fully mixed with gas fuel sprayed by the burner, so that the combustion efficiency is further improved.

2. Through the middle part at the combustor be provided with the closing in section, and with the coincidence of last air inlet position, it is inside that the air reaches the spiral case earlier after air heat transfer room preheated air rises through air conduit, and form the whirl under the effect of spiral case, get into the combustor middle section by last air inlet, can be with fuel intensive mixing in advance, and the middle part of combustor is provided with the closing in section, can form venturi effect, can not only accelerate during outside high temperature air gets into the combustor, and can increase the volume that gets into hot-air in the combustor, make it can be full of oxygen when burning, accelerate combustion rate and improvement waste gas combustion efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of an incinerator according to the present invention;

FIG. 3 is a schematic view of the installation of the volute of the present invention;

FIG. 4 is a schematic diagram of the structure of the present invention with the air heat exchange chamber and the waste gas heat exchange chamber separated.

In the figure: 1. a burner body; 2. an air heat exchange chamber; 3. an exhaust gas heat exchange chamber; 4. a buffer chamber; 5. an exhaust gas outlet; 6. a heat exchanger; 7. a combustion chamber; 8. an air inlet; 9. a stopper; 10. an exhaust gas inlet; 11. a burner; 12. a lower air inlet; 13. an air conduit; 14. a volute; 15. an upper air inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a heat accumulating type waste gas incineration treatment device comprises a combustion furnace body 1, the combustion furnace body 1 is sequentially provided with an air heat exchange chamber 2, a waste gas heat exchange chamber 3, a buffer chamber 4, a waste gas outlet 5 fixedly connected to the bottom of the combustion furnace body 1, a heat exchanger 6 fixedly connected to the upper end of the waste gas outlet 5, a combustion chamber 7 fixedly connected to the upper end of the heat exchanger 6, an air inlet 8 formed at one side of the bottom of the air heat exchange chamber 2, a waste gas inlet 10 formed at one side of the bottom of the waste gas heat exchange chamber 3, a baffle 9 fixedly connected to the inner walls of the air heat exchange chamber 2 and the waste gas heat exchange chamber 3, an air duct 13 fixedly connected to one side of the upper portion of the air heat exchange chamber 2, a burner 11 fixedly mounted to the upper portion of the buffer chamber 4, a set of lower air inlets 12 arranged in an equal circumference arrangement, the side of the upper air inlet 15 is provided with a volute 14 fixedly connected with the burner body 1, and the inlet end of the volute 14 is connected with the air duct 13.

Wherein, dog 9 is spiral setting, and dog 9 inboard is sealed with 6 contact of heat exchanger, seal by dog 9 between air heat transfer room 2 and the waste gas heat transfer room 3, can prevent that the air from getting into before 7 combustion chamber and waste gas mix, avoid resulting in oxygen not enough in the mist, and make the burning insufficient, the poor problem of exhaust-gas treatment effect appears, the time of marcing of air and waste gas can be prolonged in the setting of dog simultaneously, lengthen its and 6 contact time of heat exchanger promptly, make waste gas and air can be higher temperature when getting into 7 combustion chamber, be convenient for the abundant burning of waste gas, the burning is complete, improve the purifying effect of waste gas.

Wherein, the upper end of the combustion chamber 7 is fixedly and hermetically connected with the combustor 11, the middle part of the combustion chamber 7 is provided with a heat transfer section which expands outwards, the position of the heat transfer section is just coincided with the highest position of the flame temperature of the combustor 11, the flame port of the combustor 11 is isolated from the buffer chamber 4 into which the waste gas enters, the impact of high-temperature and quickly-rising swirl waste gas on the flame port can be avoided, the spray head of the combustor 11 is prevented from being impacted by a large amount of waste gas, the combustion efficiency of the combustor 11 is lowered, the flame temperature is reduced or even flameout is avoided, and in the middle part of the combustion chamber 7, the expansion section is arranged at the highest position of the flame temperature, so that the combustion flame can be amplified, the contact with more waste gases is facilitated, the waste gas is fully combusted, a certain buffer effect can be achieved, the combustion flue gas is prevented from quickly and directly impacting the heat exchanger 6, the damage to the heat exchanger, further increasing the temperature of the waste gas during the rising process and improving the combustion efficiency of the waste gas.

Wherein, the inner wall of the buffer chamber 4 is provided with a thread groove, which can make the rising waste gas form a vortex, and make the waste gas in a rotating state when reaching the lower air inlet 12, and the waste gas is easy to be fully mixed with the gas fuel sprayed by the burner 11, thereby improving the combustion efficiency.

Wherein, the middle part of combustor 11 is provided with the closing in section, and with the coincidence of last air inlet 15 position, it is inside that the air reaches spiral case 14 earlier after air heat transfer chamber 2 preheats air and rises through air conduit 13, and form the whirl under the effect of spiral case 14, get into combustor 11 middle section by last air inlet 15, can be with fuel intensive mixing in advance, and the middle part of combustor 11 is provided with the closing in section, can form the venturi effect, can not only accelerate outside high temperature air and get into in combustor 11, and can increase the volume that gets into hot-air in combustor 11, make it can be full of oxygen when burning, accelerate combustion rate and improvement exhaust gas combustion efficiency.

Firstly, after air and waste gas are heated by the air heat exchange chamber 2 and the waste gas heat exchange chamber 3 respectively, the heated air rises through the air conduit 13 and then reaches the inside of the volute 14, forms a rotational flow under the action of the volute 14, enters the middle section of the combustor 11 through the upper air inlet 15 and can be fully mixed with fuel in advance; and the waste gas after the heating rises and gets into in the combustor 11 from air inlet 12 down behind buffer 4, through isolating combustor 11 bocca and the buffer 4 that waste gas got into, can avoid high temperature, the impact of whirl waste gas that rises fast to the bocca, prevent that a large amount of waste gas from assaulting combustor 11 shower nozzle, cause combustor 11 department combustion efficiency step-down, reduce flame temperature and even flame-out, buffer 4 can make the waste gas that rises form the vortex simultaneously, make it be in the rotation state when arriving air inlet 12 department down, easily with combustor 11 spun gas fuel intensive mixing, combustion efficiency when improving the burning, improve exhaust purification effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a heat accumulation formula waste gas incineration equipment, includes furnace body (1), supreme air heat transfer room (2), waste gas heat transfer room (3) of having set gradually are down followed in furnace body (1), surge chamber (4), bottom fixedly connected with exhaust outlet (5) of furnace body (1), upper end fixedly connected with heat exchanger (6) of exhaust outlet (5), upper end fixedly connected with combustion chamber (7) of heat exchanger (6), air intlet (8) have been seted up to one side of air heat transfer room (2) bottom, waste gas intlet (10), its characterized in that have been seted up to one side of waste gas heat transfer room (3) bottom: equal fixedly connected with dog (9) on air heat transfer room (2) and waste gas heat transfer room (3) inner wall, one side fixed connection on air heat transfer room (2) upper portion has air duct (13), the upper portion fixed mounting of surge chamber (4) has combustor (11), lower air inlet (12) that a set of circumference was arranged such as waiting are seted up to the bottom of combustor (11), last air inlet (15) that a set of circumference was arranged such as waiting are seted up at the middle part of combustor (11), the side of going up air inlet (15) is provided with spiral case (14) with burning furnace body (1) fixed connection, the entrance point and the air duct (13) of spiral case (14) are connected.

2. A heat accumulating type exhaust gas incineration treatment apparatus according to claim 1, characterized in that: the stop block (9) is spirally arranged, the inner side of the stop block (9) is in contact seal with the heat exchanger (6), and the air heat exchange chamber (2) and the waste gas heat exchange chamber (3) are sealed by the stop block (9).

3. A heat accumulating type exhaust gas incineration treatment apparatus according to claim 1, characterized in that: the upper end of the combustion chamber (7) is fixedly and hermetically connected with the combustor (11), the middle of the combustion chamber (7) is provided with a heat transfer section which expands outwards, and the position of the heat transfer section is just coincided with the highest position of the flame temperature of the combustor (11).

4. A heat accumulating type exhaust gas incineration treatment apparatus according to claim 1, characterized in that: the inner wall of the buffer chamber (4) is provided with a thread groove.

5. A heat accumulating type exhaust gas incineration treatment apparatus according to claim 1, characterized in that: the middle part of the combustor (11) is provided with a closing-in section which is superposed with the position of the upper air inlet (15).