CN210921394U

CN210921394U - Novel flue gas mixing chamber

Info

Publication number: CN210921394U
Application number: CN201921616434.9U
Authority: CN
Inventors: 郑忠玉; 李维华; 龚林岗
Original assignee: Fujian Sanbao Steel Co Ltd
Current assignee: Fujian Sanbao Steel Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-03
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a novel flue gas mixing chamber, include: a spiral main pipe; the first air inlet pipe is connected to the spiral main pipe and used for introducing air; the hot air blower is connected to the first air inlet pipe and heats the air; the second air inlet pipe is connected to the spiral main pipe and used for introducing flue gas; the first exhaust pipe is connected to the spiral main pipe and used for guiding the mixed air and the mixed flue gas into the combustor; thereby when having overcome air and flue gas and mixing, the vapor condensation in the flue gas can appear to freeze, blocks gas channel's technical problem, has reached that air and flue gas mix effectually, can not appear the condensation to freeze, gas channel is unblocked, the good technical effect of security, the practicality is strong.

Description

Novel flue gas mixing chamber

Technical Field

The utility model relates to a technical field is handled to the flue gas, specific novel flue gas mixing chamber that says so.

Background

Industrial and mining enterprises such as petrifaction enterprises, steel enterprises, cement enterprises and the like need to burn a large amount of natural gas, fuel oil and the like every day to provide energy for process reaction, heating and the like; therefore, a large amount of high-temperature waste flue gas is generated along with the generation of the waste flue gas, and the part of the flue gas contains gases such as CO and the like under a certain working condition and is directly discharged, so that the atmosphere is seriously polluted, and the waste of resources is also wasted; in the specific use process, at least the following defects are found, the existing method for treating the flue gas is to mix air and the flue gas and then send the mixture into a combustor for combustion, because the temperature of the flue gas is generally about 150 ℃, and the temperature of the air is normal temperature, the temperature of the flue gas can be reduced during mixing, particularly in northern areas, water vapor in the flue gas can be condensed to be frozen when meeting a large amount of cold air, a gas channel is blocked, the normal operation of the combustor is influenced, and potential safety hazards exist.

Disclosure of Invention

The above-mentioned weak point to exist among the correlation technique, the utility model aims at providing a novel flue gas mixing chamber to can appear the vapor condensation in the flue gas to freezing, block gas passage's technical problem when air among the solution correlation technique and flue gas mix.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a novel flue gas mixing chamber, comprising: a spiral main pipe;

the first air inlet pipe is connected to the spiral main pipe and used for introducing air;

the hot air blower is connected to the first air inlet pipe and heats the air;

the second air inlet pipe is connected to the spiral main pipe and used for introducing flue gas;

and the first exhaust pipe is connected to the spiral main pipe and used for guiding the mixed air and the mixed flue gas into the combustor.

Further, the second air inlet pipe is connected to the top of the spiral main pipe.

Further, the first air inlet pipe is connected to the side wall of the spiral main pipe, and is connected to the upper half portion of the spiral main pipe, and is close to the second air inlet pipe.

Further, the first exhaust pipe is connected to the bottom of the spiral main pipe.

The utility model has the advantages that: compared with the prior art, the novel flue gas mixing chamber has the advantages that air is heated by the air heater and then enters the spiral main pipe through the first air inlet pipe, flue gas enters the spiral main pipe through the second air inlet pipe, the air and the flue gas can be mixed in the spiral main pipe, then the air enters the combustor through the first exhaust pipe to be fully combusted, and as the air is heated and the temperature of the flue gas is close to that of the air, the phenomenon that water vapor in the flue gas is condensed to be frozen and blocks a gas channel cannot occur; therefore, the technical problem that water vapor in the flue gas is condensed to freeze and blocks a gas channel when the air and the flue gas are mixed is solved, the air and the flue gas are good in mixing effect, the condensation to freeze cannot occur, the gas channel is smooth, the technical effect of good safety is achieved, and the practicability is high.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention;

in the figure: 10. the air heater comprises a spiral main pipe, 20 parts of a first air inlet pipe, 30 parts of an air heater, 40 parts of a second air inlet pipe and 50 parts of a first exhaust pipe.

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 some embodiments of the present invention, not all embodiments;

the utility model relates to a novel flue gas mixing chamber, which solves the technical problems that when air and flue gas in the related technology are mixed, vapor in the flue gas is condensed to be frozen and blocks a gas channel; the air-flue gas mixing device can be manufactured and used, and achieves the positive effects of good air and flue gas mixing effect, no condensation to icing, smooth gas channel and good safety; the general idea is as follows:

the first embodiment is as follows:

see FIG. 1; a novel flue gas mixing chamber comprising: a main spiral pipe 10;

a first air inlet pipe 20 connected to the spiral main pipe 10 for introducing air;

a hot air blower 30 connected to the first air inlet pipe 20 for heating the air;

the second air inlet pipe 40 is connected to the spiral main pipe 10 and used for introducing flue gas;

and a first exhaust pipe 50 connected to the spiral main pipe 10 for guiding the mixed air and flue gas into the burner;

specifically, in implementation, after being heated by the hot air heater 30, the air enters the spiral main pipe 10 through the first air inlet pipe 20, the flue gas enters the spiral main pipe 10 through the second air inlet pipe 40, the flue gas and the heated air can be mixed in the spiral main pipe 10, and then the flue gas enters the combustor through the first exhaust pipe 50 to be sufficiently combusted, and as the air is heated and the temperature of the flue gas is close, the situation that water vapor in the flue gas is condensed to be frozen and the gas channel is blocked cannot occur; the technical problems that when air and flue gas are mixed, water vapor in the flue gas is condensed to be frozen and blocks a gas channel are solved, and the technical effects that the air and flue gas are good in mixing effect, the water vapor is not condensed to be frozen, the gas channel is smooth and the safety is good are achieved;

the following is a detailed description of the respective constituent elements and the connection relationship:

specifically, in fig. 1, the spiral main pipe 10 is of a spiral structure, and compared with a straight pipe, the spiral main pipe has a relatively long channel and a relatively small occupied space, and has enough space to fully mix the flue gas and the heated air, so that the mixing effect is ensured;

the second air inlet pipe 40 is assembled and welded by adopting a first bent pipe, a first straight pipe and a first flange to form an air inlet pipeline, the second air inlet pipe 40 is welded at the top of the spiral main pipe 10 through the first bent pipe, flue gas is introduced from the top, and the temperature of the flue gas is generally about 150 ℃; a blower is connected to the first flange, and the flue gas generated by the boiler is introduced into the spiral main pipe 10;

the first air inlet pipe 20 is assembled and welded by adopting a second straight pipe and a second flange to form an air inlet pipeline, the first air inlet pipe 20 is welded on the side wall of the spiral main pipe 10 through the second straight pipe, is connected to the upper half part of the spiral main pipe 10 and is close to the second air inlet pipe 40, so that flue gas and heated air can be continuously and fully mixed in the lower half part of the spiral main pipe 10 after being contacted and mixed in the upper half part of the spiral main pipe 10, and the mixing effect is ensured;

the hot air blower 30 is of a common structure in the prior art, for example, an RY-P-15A-075 type industrial hot air blower is inserted into the first air inlet pipe 20 through the air outlet, or a third flange is additionally arranged at the air outlet and connected with the second flange through a bolt, so that the hot air blower 30 can be reliably connected with the first air inlet pipe 20, the air is heated to about 200 ℃, and when the hot air blower is contacted and mixed with the flue gas, water vapor in the flue gas can be reliably prevented from being condensed to be frozen;

the first exhaust pipe 50 is assembled and welded by adopting a second bent pipe, a third straight pipe and a fourth flange to form an exhaust pipeline, the first exhaust pipe 50 is welded at the bottom of the spiral main pipe 10 through the second bent pipe, so that flue gas and heated air can smoothly enter the combustor, and the first exhaust pipe 50 is connected with a fifth flange on the combustor through the fourth flange;

the utility model discloses a theory of operation: in implementation, after being heated by the air heater 30, the air enters the spiral main pipe 10 through the first air inlet pipe 20, the flue gas enters the spiral main pipe 10 through the second air inlet pipe 40, the flue gas and the heated air can be mixed in the spiral main pipe 10, and then the flue gas enters the combustor through the first exhaust pipe 50 to be sufficiently combusted, and as the air is heated and the temperature of the flue gas is close, the situation that water vapor in the flue gas is condensed to be frozen and blocks a gas channel can not occur; therefore, the technical problems that when air and flue gas are mixed, water vapor in the flue gas is condensed to be frozen and blocks a gas channel are solved, the air and flue gas mixing effect is good, the condensation to be frozen cannot occur, the gas channel is smooth, and the safety is good are achieved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like, which indicate orientations or positional relationships, are based on the positional relationships illustrated in the drawings, and are only for convenience of describing the present invention or simplifying the description, but do not indicate specific orientations that must be provided; the operation processes described in the embodiments are not absolute use steps, and may be adjusted accordingly when actually used.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the use of "first," "second," and the like in the description and in the claims does not denote any order, quantity, or importance, but rather the terms "a" and "an" and the like are used to distinguish one element from another, and likewise, do not denote an absolute limitation of quantity, but rather denote the presence of at least one of the referenced item, as may be determined by reference to the example.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel flue gas mixing chamber, comprising: a main spiral pipe (10);

a first air inlet pipe (20) connected to the spiral main pipe (10) for introducing air;

the hot air blower (30) is connected to the first air inlet pipe (20) and heats the air;

the second air inlet pipe (40) is connected to the spiral main pipe (10) and is used for introducing smoke;

and a first exhaust pipe (50) connected to the spiral main pipe (10) for guiding the mixed air and flue gas into the combustor.

2. The novel flue gas mixing chamber of claim 1, wherein: the second air inlet pipe (40) is connected to the top of the spiral main pipe (10).

3. The novel flue gas mixing chamber of claim 1, wherein: the first air inlet pipe (20) is connected to the side wall of the spiral main pipe (10) and is connected to the upper half part of the spiral main pipe (10) and close to the second air inlet pipe (40).

4. The novel flue gas mixing chamber of claim 1, wherein: the first exhaust pipe (50) is connected to the bottom of the spiral main pipe (10).