CN214581046U

CN214581046U - Multi-channel high-efficiency energy-saving burner

Info

Publication number: CN214581046U
Application number: CN202023114924.4U
Authority: CN
Inventors: 吴联权; 刘春锋; 张耀武; 周铁书; 翁域域
Original assignee: Yangjiang Yichuan Metal Technology Co ltd
Current assignee: Yangjiang Yichuan Metal Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-02
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a high-efficient energy-conserving combustor of multichannel, including oil gun, outflow tuber pipe, inner flow tuber pipe and tuber pipe once, in oil gun fixed insertion in proper order located outflow tuber pipe and inner flow tuber pipe, the fixed intercommunication of one end of inner flow tuber pipe and outflow tuber pipe, the fixed intercommunication of one end that the inner flow tuber pipe is close to the outflow tuber pipe has the coal flow tuber pipe, the one end that the outflow tuber pipe was kept away from to the inner flow tuber pipe is fixed to be inserted and is equipped with central tuber pipe, the one end of tuber pipe and the fixed intercommunication of outflow tuber pipe once, the one end that the outflow tuber pipe was kept away from to the tuber pipe once passes through the pipe intercommunication with the inner flow tuber pipe. The utility model discloses in through having adopted advance hot reflux technique and concentrated combustion technique, the flame stability that makes the combustor produce has obtained the improvement to the result of use of combustor has been promoted.

Description

Multi-channel high-efficiency energy-saving burner

Technical Field

The utility model relates to a combustor technical field especially relates to energy-efficient combustor of multichannel.

Background

The burner is a general term for a device for ejecting fuel and air in a certain manner to perform mixed combustion. The burners are classified into industrial burners, civil burners and special burners according to types and application fields. Is made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or metallic titanium.

However, the existing burner has a simpler composition structure and poorer flame stability, thereby influencing the use effect of the burner.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of simple structure, poor flame stability of the burner and the proposed multi-channel high-efficiency energy-saving burner in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the multichannel high-efficiency energy-saving burner comprises an oil gun, an outer flow air pipe, an inner flow air pipe and a primary air pipe, wherein the oil gun is sequentially fixedly inserted into the outer flow air pipe and the inner flow air pipe, the inner flow air pipe is fixedly communicated with one end of the outer flow air pipe, the coal flow air pipe is fixedly communicated with one end of the inner flow air pipe, which is close to the outer flow air pipe, the central air pipe is fixedly inserted into one end of the inner flow air pipe, one end of the primary air pipe is fixedly communicated with the outer flow air pipe, and one end of the primary air pipe, which is far away from the outer flow air pipe, is communicated with the inner flow air pipe through a guide pipe.

Preferably, an outer wind adjusting valve is connected to the primary wind pipe in a threaded manner.

Preferably, the guide pipe is connected with an internal air flow adjusting valve in a threaded mode.

Preferably, one end of the guide pipe close to the primary air pipe is communicated with the central air pipe through a branch pipe.

Preferably, a central air adjusting valve is connected to the branch pipe in a threaded mode.

Preferably, the outer wall of the outer flow air pipe is fixedly sleeved with a fixing ring.

Has the advantages that:

1. the pulverized coal is jetted and combusted from the multi-air-channel combustor, the pulverized coal is pre-mixed with air in an air conveying mode, three-time disturbance and mixing are carried out, firstly, the pulverized coal is disturbed by radial rotating airflow from an inner flow air channel when being jetted, then, outer flow air flowing at high speed in an axial direction is met, and finally, due to the fact that an inner flow air outlet and an outer flow air outlet have quite high speed relative to secondary air, a relative low-pressure area is formed in the center of flame, and the inner flow air and the outer flow air which are mixed with the pulverized coal are mixed with the secondary air with high temperature. The three disturbances and mixing are caused by the difference of the speed, direction and pressure of the airflow, so that the coal and the wind are mixed more uniformly, the backflow of the secondary air supplements fresh air required by pulverized coal combustion in time, the pulverized coal is completely combusted, the proportion of the air flowing in and out is changed, and the shape of the flame can be adjusted;

3. the utility model discloses in through having adopted advanced hot reflux technique and concentrated combustion technique, consequently can burn the anthracite, low volatile coal, the inferior coal, the flame stabilizing plate of combustor central wind outlet tip forms the backward flow district at the flame root, ensure flame stabilization, from the size and the distance of stabilizing plate spun central wind energy regulation backward flow district, more be favorable to burning the anthracite, low volatile coal and the inferior coal, the flame stability who makes the combustor produce has obtained the improvement, thereby the result of use of combustor has been promoted.

Drawings

FIG. 1 is a schematic structural view of a multi-channel high-efficiency energy-saving burner provided by the present invention;

fig. 2 is a schematic side view of the multi-channel high-efficiency energy-saving burner provided by the utility model.

In the figure: 1 oil gun, 2 outer flow air pipe, 3 inner flow air pipe, 4 primary air pipe, 5 coal flow air pipe, 6 central air pipe, 7 guide pipe, 8 outer flow air regulating valve, 9 inner flow air regulating valve, 10 branch pipe, 11 central regulating valve and 12 fixing ring.

Detailed Description

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

Referring to fig. 1-2, the multi-channel high-efficiency energy-saving burner comprises an oil gun 1, an outer flow air pipe 2, an inner flow air pipe 3 and a primary air pipe 4, wherein a fixing ring 12 is fixedly sleeved on the outer wall of the outer flow air pipe 2 to conveniently fix the outer flow air pipe 2, and an outer flow air regulating valve 8 is in threaded connection with the primary air pipe 4 and used for regulating the air volume in the primary air pipe 4;

in the embodiment, the oil gun 1 is sequentially and fixedly inserted into the outer flow air pipe 2 and the inner flow air pipe 3, the inner flow air pipe 3 is fixedly communicated with one end of the outer flow air pipe 2 and used for guiding air into the inner flow air pipe 3, and one end of the inner flow air pipe 3 close to the outer flow air pipe 2 is fixedly communicated with the coal flow air pipe 5;

in the embodiment, a central air pipe 6 is fixedly inserted into one end of the inner flow air pipe 3, which is far away from the outer flow air pipe 2, one end of the primary air pipe 4 is fixedly communicated with the outer flow air pipe 2, and one end of the primary air pipe 4, which is far away from the outer flow air pipe 2, is communicated with the inner flow air pipe 3 through a guide pipe 7;

in this embodiment, the conduit 7 is connected with an internal air flow adjusting valve 9 through a screw thread for adjusting the air flow in the conduit 7, one end of the conduit 7 close to the primary air pipe 4 is communicated with the central air pipe 6 through a branch pipe 10, and the branch pipe 10 is connected with a central air flow adjusting valve 11 through a screw thread for adjusting the air flow in the branch pipe 10.

In the embodiment, pulverized coal is sprayed and combusted from the multi-air-channel combustor, and the pulverized coal conveyed by air is pre-mixed with the pulverized coal and air, and is subjected to three-time disturbance and mixing, namely firstly, the pulverized coal is sprayed out and meets the disturbance of radial rotating airflow from an inner flow air channel, then meets outer flow air flowing at high speed in the axial direction, and finally, because an outlet of the inner flow air and the outer flow air has quite high speed relative to secondary air, a relative low-pressure area is formed in the center of flame, so that the inner flow air and the outer flow air which are mixed with the pulverized coal are mixed with the secondary air with higher temperature;

in the embodiment, the three disturbances and mixing are caused by different speeds, directions and pressures of air flows, so that coal and air are mixed more uniformly, the backflow of secondary air supplements fresh air required by pulverized coal combustion in time, pulverized coal is completely combusted, the proportion of air flowing in and out is changed, and the shape of flame can be adjusted.

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. Multichannel energy-efficient combustor, including oil gun (1), outflow tuber pipe (2), internal flow tuber pipe (3) and air hose (4), its characterized in that: oil gun (1) is fixed in proper order to be inserted and is located in outflow tuber pipe (2) and inner flow tuber pipe (3), inner flow tuber pipe (3) and the fixed intercommunication of the one end of outflow tuber pipe (2), the fixed intercommunication of the one end that inner flow tuber pipe (3) are close to outflow tuber pipe (2) has coal flow tuber pipe (5), the one end that outflow tuber pipe (2) were kept away from in inner flow tuber pipe (3) is fixed to be inserted and is equipped with central tuber pipe (6), the one end and the fixed intercommunication of outflow tuber pipe (2) of tuber pipe (4), the one end that outflow tuber pipe (2) were kept away from in tuber pipe (4) is through pipe (7) intercommunication with inner flow tuber pipe (3).

2. The multi-channel energy efficient burner of claim 1, wherein: and an outer wind adjusting valve (8) is connected to the primary wind pipe (4) through threads.

3. The multi-channel energy efficient burner of claim 1, wherein: the guide pipe (7) is connected with an internal air flow adjusting valve (9) through a thread.

4. The multi-channel energy efficient burner of claim 1, wherein: one end of the guide pipe (7) close to the primary air pipe (4) is communicated with the central air pipe (6) through a branch pipe (10).

5. The multi-channel energy efficient burner of claim 4, wherein: the branch pipe (10) is in threaded connection with a central air adjusting valve (11).

6. The multi-channel energy efficient burner of claim 1, wherein: the outer wall of the outer flow air pipe (2) is fixedly sleeved with a fixing ring (12).