CN214392719U

CN214392719U - Pure gas heating type aluminum brazing furnace structure

Info

Publication number: CN214392719U
Application number: CN202023034662.0U
Authority: CN
Inventors: 扈杰
Original assignee: Xi'an Aojie Electric Heating Engineering Co ltd
Current assignee: Xi'an Aojie Electric Heating Engineering Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-15
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to a pure gas heating type aluminum brazing furnace structure, which comprises a furnace shell, a furnace lining, a muffle, a furnace cover, a gas heating system and a waste heat recovery pipeline; the utility model heats the aluminum brazing furnace by natural gas; in addition, compared with the traditional electric heating aluminum brazing furnace, the heat-preservation side wall of the furnace lining does not need to reserve a heating element replacing hole any more, so that the heat in the furnace is prevented from leaking; meanwhile, the redundant heat is recycled and conveyed to the curtain chamber, so that the utilization rate of the heat is greatly improved, and the production cost is reduced.

Description

Pure gas heating type aluminum brazing furnace structure

Technical Field

The utility model relates to an aluminium technical field that brazes especially relates to a pure gas adds fever type aluminium stove structure of brazing.

Background

The existing aluminum brazing furnace is divided into a drying furnace, a preheating furnace and a brazing furnace, wherein the degreasing furnace, the drying furnace and the preheating furnace are generally heated by fuel gas, and the brazing furnace is electrically heated, so that a customer needs to supply two power energy sources of electric energy and natural gas at the same time when the equipment is installed, and the early investment is increased; meanwhile, the production cost of electric heating is more than that of gas heating; in addition, the capacity of equipment required by a client is not large, when a preheating section is not needed, the electric heating brazing section does not have a waste heat recycling device, a temperature drop phenomenon can occur when a workpiece passes through a transition section at the front curtain chamber, and an electric heating element of about 30kw has to be added at the transition section to avoid the workpiece from being cooled, so that the energy consumption is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pure gas heating type aluminum brazing furnace structure aiming at the defects of the prior art, compared with an electric heating type aluminum brazing furnace, all parts needing to be heated of the pure gas heating type aluminum brazing furnace are heated by natural gas, a production line only needs to be added with natural gas energy when being installed, and the early investment of customers is reduced; in the production process, a waste heat recovery pipeline is additionally arranged in the fuel gas heating section, and the redundant heat in the heating section furnace is collected to heat the transition section, so that unnecessary energy loss is avoided; meanwhile, compared with the low price of electric energy, the cost of the natural gas is low, and the requirement of saving the cost for users is effectively met.

The utility model discloses an adopt following technical scheme to realize:

the utility model provides a pure gas adds fever type aluminium stove structure of brazing, includes stove outer covering, furnace lining, bell, gas heating system and waste heat recovery pipeline, the furnace lining completely cover and laminate in the stove outer covering.

As the utility model discloses explain further, the furnace wall bottom is equipped with the heat conduction groove, be equipped with waste heat recovery pipeline in the heat conduction groove.

The gas heating system comprises a combustion-supporting air pipeline, a gas pipeline and a muffle, wherein a support frame is arranged at the bottom of the furnace shell, the muffle is placed on the support frame, a thermocouple shield is arranged at the bottom of the muffle, and the thermocouple shield is far away from the support frame.

The combustion-supporting air pipeline is arranged at one end of the top of the furnace shell, the middle of the combustion-supporting air pipeline is connected with an air blower, two ends of the combustion-supporting air pipeline respectively extend out of a pipeline I and a pipeline II, the pipeline I and the pipeline II are respectively arranged on two side surfaces of the furnace shell, a plurality of branch pipes are respectively connected to the pipeline I and the pipeline II, and the other ends of the branch pipes penetrate through the furnace shell and the furnace lining.

The gas pipeline is arranged at the other end of the top of the furnace shell, a pipeline III and a pipeline IV extend from two ends of the gas pipeline respectively, the pipeline III and the pipeline IV are arranged on two side surfaces of the furnace shell respectively, a plurality of branch pipes are connected to the pipeline III and the pipeline IV respectively, and the other ends of the branch pipes penetrate through the furnace shell and the furnace lining.

Compared with the prior art, the utility model discloses following profitable technological effect has:

in the prior art, a drying furnace and a preheating furnace are generally heated by using gas, a brazing furnace is heated by using electricity, and in the case of equipment installation, a customer needs to be supplied with two power energy sources of electric energy and natural gas at the same time, so that the early investment is increased; compared with the electric energy, the natural gas is cheaper, so that the production cost is reduced; in addition, the required equipment productivity of customer is not big, when not needing the preheating section, and the electrical heating section of brazing does not possess waste heat recovery and utilization device, and the work piece can appear falling the temperature phenomenon when the changeover portion of front curtain room department, has to increase the electrical heating element about 30kw at the changeover portion and avoids the work piece cooling, leads to the energy consumption to increase by a wide margin, and the utility model discloses a pure gas heating type aluminium brazing furnace structure, gas heating section have increased the waste heat recovery pipeline, collect unnecessary heat in the heating section stove and be used for heating the changeover portion, have avoided unnecessary energy loss.

Drawings

The utility model is further described with the following drawings:

FIG. 1 is a front view of the pure gas heating type aluminum brazing furnace of the present invention;

FIG. 2 is a top view of the pure gas heating type aluminum brazing furnace of the present invention;

FIG. 3 is a view showing an internal structure of the pure gas heating type aluminum brazing furnace of the present invention;

FIG. 4 is a left side view of the furnace casing according to the present invention;

fig. 5 is a right side structure view of the furnace casing of the present invention.

Description of the reference numerals

1. A furnace shell; 2. a furnace lining; 3. a furnace cover; 4. a muffle; 5. a waste heat recovery pipeline; 6. a first pipeline; 7. a second pipeline; 8. a third pipeline; 9. a fourth pipeline; 10. a blower; 11. a support frame; 12. a combustion air conduit; 13. a gas pipeline.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

a pure gas heating type aluminum brazing furnace structure comprises a furnace shell 1, a furnace lining 2, a furnace cover 3, a gas heating system and a waste heat recovery pipeline 5, wherein the furnace shell 1 is formed by welding a section steel frame and a bent steel plate and serves as a main frame of equipment; after the furnace shell 1 is assembled and molded, the furnace lining 2 and the furnace cover 3 are built by using special tools, the heat insulation materials of the furnace lining 2 and the furnace cover 3 are environment-friendly fiber products and never contain carcinogens such as asbestos, and the furnace lining 2 completely covers and is attached to the furnace shell 1; the furnace cover 3 is of a detachable structure and is connected with the side wall through bolts, and the furnace lining 2 and the furnace cover 3 jointly form a heat preservation system of the equipment, so that the no-load loss of the equipment is effectively reduced.

When single stove of brazing uses, 2 bottoms of furnace lining are equipped with the heat conduction groove, the heat conduction groove extends to 2 middle parts of furnace lining, makes the heat energy directly transmit the heat conduction groove, be equipped with rectangle waste heat recovery pipeline 5 in the heat conduction groove, waste heat recovery pipeline 5 extends to the outer certain distance of aluminium stove front end heat conduction groove of brazing, waste heat recovery pipeline 5 extending part connects curtain room heat conduction groove.

When a plurality of stove of brazing uses, 2 bottoms of furnace lining are equipped with the heat conduction groove, the heat conduction groove extends to 2 length direction's of furnace lining both ends, makes the heat can direct transmission to the heat conduction groove, be equipped with rectangle waste heat recovery pipeline 5 in the heat conduction groove, waste heat recovery pipeline 5 extends to the outer certain distance of aluminium stove front end heat conduction groove of brazing, when a plurality of aluminium stove of brazing use simultaneously, waste heat recovery pipeline 5 can insert the terminal heat conduction groove of next aluminium stove of brazing, realizes unlimited series connection.

The gas heating system comprises a combustion-supporting air pipeline 12, a gas pipeline 13 and a muffle 4, wherein a support frame 11 is arranged at the bottom of the furnace shell 1, the muffle 4 is placed on the support frame 11, the muffle 4 is made of 316L stainless steel plates through bending and tailor welding, the muffle 4 is designed by adopting a plane vault and a plane bottom, and meanwhile, a sufficient distance is reserved between a steel beam and a thermocouple shield at the bottom of the muffle 4, so that the muffle 4 is ensured not to collide with the steel beam after being heated and expanded; be equipped with the metal guipure in the muffle 4, the inside net width of muffle 4 is 1.1 times of the guipure width that adopts, can avoid like this that the metal guipure rubs with muffle 4 lateral wall under any circumstance.

The combustion-supporting air pipeline 12 is arranged at the front end of the top of the furnace shell 1, the middle of the combustion-supporting air pipeline 12 is connected with an air blower 10, the air blower 10 extracts air to enter the combustion-supporting air pipeline 12, two ends of the combustion-supporting air pipeline 12 respectively extend out of a pipeline I6 and a pipeline II 7, the pipeline I6 and the pipeline II 7 are respectively arranged on two side faces of the furnace shell 1 and distributed up and down and are not on the same horizontal plane, a plurality of branch pipes are respectively connected to the pipeline I6 and the pipeline II 7, the other ends of the branch pipes penetrate through the furnace shell 1 and the furnace lining 2, and the air enters the pipeline I6 and the pipeline II 7 through the combustion-supporting air pipeline 12 and then enters the furnace through the branch pipes.

The gas pipeline 13 is arranged at the rear end of the top of the furnace shell 1, two ends of the gas pipeline 13 respectively extend out of a pipeline three 8 and a pipeline four 9, the pipeline three 8 and the pipeline four 9 are respectively arranged on two side surfaces of the furnace shell 1, the pipeline three 8 and the pipeline four 9 are respectively connected with a plurality of branch pipes, and the other ends of the branch pipes penetrate through the furnace shell 1 and the furnace lining 2; the third pipeline 8 is located at the upper end of the first pipeline 6 on the same horizontal plane, the fourth pipeline 9 is located at the lower end of the second pipeline 7 on the same horizontal plane, the branch pipes of the first pipeline 6 and the third pipeline 8 are distributed in a staggered mode, and the branch pipes of the second pipeline 7 and the fourth pipeline 9 are distributed in a staggered mode.

The top of the furnace shell 1 is provided with a plurality of ignition nozzles, the ignition nozzles generate high-speed airflow, ignite fuel gas and drive the gas to circulate at high speed in the furnace shell 1, so that the temperature in the furnace shell 1 is kept uniform.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a pure gas adds fever type aluminium brazing stove structure which characterized in that, includes stove outer covering (1), furnace lining (2), bell (3), gas heating system and waste heat recovery pipeline (5), furnace lining (2) cover completely and laminate in stove outer covering (1).

2. The pure gas heating type aluminum brazing furnace structure according to claim 1, wherein a heat conducting groove is formed in the bottom of the furnace lining (2), and a waste heat recovery pipeline (5) is arranged in the heat conducting groove.

3. The pure gas heating type aluminum brazing furnace structure according to claim 1, wherein the gas heating system comprises a combustion air pipeline (12), a gas pipeline (13) and a muffle (4), a support frame (11) is arranged at the bottom of the furnace shell (1), the muffle (4) is placed on the support frame (11), a thermocouple shield is arranged at the bottom of the muffle (4), and the thermocouple shield is far away from the support frame (11).

4. The pure gas heating type aluminum brazing furnace structure according to claim 3, wherein a combustion air pipeline (12) is arranged at one end of the top of the furnace shell (1), an air blower (10) is connected to the middle of the combustion air pipeline (12), a first pipeline (6) and a second pipeline (7) extend out from two ends of the combustion air pipeline respectively, the first pipeline (6) and the second pipeline (7) are arranged on two side surfaces of the furnace shell (1) respectively, a plurality of branch pipes are connected to the first pipeline (6) and the second pipeline (7) respectively, and the other ends of the branch pipes penetrate through the furnace shell (1) and the furnace lining (2).

5. The pure gas heating type aluminum brazing furnace structure according to claim 3, wherein the gas pipeline (13) is arranged at the other end of the top of the furnace shell (1), two ends of the gas pipeline (13) extend out of a pipeline three (8) and a pipeline four (9), the pipeline three (8) and the pipeline four (9) are arranged on two side surfaces of the furnace shell (1), the pipeline three (8) and the pipeline four (9) are respectively connected with a plurality of branch pipes, and the other ends of the branch pipes penetrate through the furnace shell (1) and the furnace lining (2).