CN212164727U

CN212164727U - Tunnel furnace auxiliary heat convection circulation assembly

Info

Publication number: CN212164727U
Application number: CN202020337282.5U
Authority: CN
Inventors: 邵鸿飞
Original assignee: Guangzhou Bake Oven Machinery Co ltd
Current assignee: Guangzhou Bake Oven Machinery Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-12-18
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a tunnel furnace auxiliary heat convection circulation subassembly, it includes: a body having a housing and a roasting chamber extending in a length direction of the body; the auxiliary circulation assembly comprises a hot air internal circulation structure, a fresh air channel structure and a fan assembly; one end of the hot air internal circulation component is provided with an internal circulation air return opening arranged in the baking chamber, and the other end of the hot air internal circulation component is connected with an input end of the ventilator component; one end of the fresh air channel structure is communicated with the external atmospheric environment, and the other end of the fresh air channel structure is connected with the input end of the ventilator component; the fan assembly has an output port for providing a flow of air into the roasting chamber. The utility model provides a pair of tunnel furnace auxiliary heat convection circulation subassembly, it is used for improving the efficiency that the tunnel furnace cures indoor heat convection, improves food processingquality, reduces because of the concentrated fault probability who brings of heating power.

Description

Tunnel furnace auxiliary heat convection circulation assembly

Technical Field

The utility model relates to a food processing apparatus field especially relates to a tunnel furnace auxiliary heat convection circulation subassembly.

Background

The tunnel furnace consists of a machine body and a plurality of baking chamber assemblies, and a heating part, a conveying assembly and the like are arranged in the tunnel furnace. The material, such as bread, tortillas, meat, etc., located within the roasting chamber assembly is subjected to a roasting process by a number of heat transfer means. Generally, heat transfer can be generally classified into three types of heat conduction, heat convection, and heat radiation, according to the common general knowledge in the art. In the existing equipment, the heating characteristics of different products are different, wherein the tunnel furnace is equipment for heating the to-be-processed products by electric energy and chemical energy. However, the existing equipment has the defects of lacking measures for guiding hot air convection, which easily causes the heat to be excessively concentrated, especially the position close to a heating device, and the brought adverse factors are obvious, so that the to-be-processed product is easily overheated and coked, and the parts are easily heated unevenly, thereby affecting the service life. Therefore, new measures are urgently needed for optimization.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims at providing a tunnel furnace auxiliary heat convection circulation subassembly for improve the efficiency of tunnel furnace baking indoor heat convection, improve the food processing quality, reduce the probability of failure brought because of heating power is concentrated.

In order to realize the purpose of the utility model, the utility model discloses a tunnel furnace auxiliary heat convection circulation subassembly, it includes:

a body having a housing and a roasting chamber extending in a length direction of the body;

the auxiliary circulation assembly comprises a hot air internal circulation structure, a fresh air channel structure and a fan assembly; one end of the hot air internal circulation component is provided with an internal circulation air return opening arranged in the baking chamber, and the other end of the hot air internal circulation component is connected with an input end of the ventilator component; one end of the fresh air channel structure is communicated with the external atmospheric environment, and the other end of the fresh air channel structure is connected with the input end of the ventilator component; the fan assembly has an output port for providing a flow of air into the roasting chamber.

Furthermore, one end of the baking chamber in the length direction is provided with at least one side end opening.

Further, it should also include: the other end of the hot air internal circulation component is connected with the input end of the ventilator component through the three-way pipeline component; the other end of the fresh air channel structure is connected with the input end of the ventilator component through the three-way pipeline component.

Furthermore, the fresh air channel structure comprises an external air inlet input port and a normally closed valve arranged on the external air inlet input port.

Furthermore, the normally closed valve comprises an L shaft pivoted to the external air inlet port, a movable plate mounted on the L shaft and located inside the fresh air channel structure, and a counterweight mounted on the L shaft and located outside the fresh air channel structure.

Further, the air conditioner also comprises an air quantity adjusting component, an expansion pipeline and a hot air blowing pipeline; the expansion pipeline is arranged in a side surface heat insulation layer arranged at one end of the machine body in the width direction and extends along the length direction; the number of the hot air blowing pipelines is multiple, one end of each hot air blowing pipeline is communicated with the expansion pipeline, and the hot air blowing pipelines are arranged in the length direction; the air quantity adjusting assembly comprises a shell, the shell is provided with a mixed gas inlet communicated with an output port of the fan assembly, and the shell is provided with a mixed gas outlet communicated with one end of the expansion pipeline; the mixed gas outlet is internally provided with a valve plate which is movably arranged on the inner wall of the shell, the valve plate is connected with an adjusting rod movably connected with the shell in a penetrating way, and the adjusting rod is used for controlling the opening degree of the valve plate at the mixed gas outlet.

Further, the fan assembly comprises a motor, a volute and an impeller pivoted inside the volute. .

Compared with the prior art, implement the beneficial effects of the utility model reside in that:

(1) the convection of hot air is enhanced for the interior of the baking chamber, the over-concentration of heat is avoided, the uniform heating of food is facilitated, and the faults caused by the heat accumulation at local positions are avoided; according to the practice in the art, the addition of the auxiliary circulation device can enhance the hot gas circulation, thereby facilitating the temperature balance and improving the heating efficiency. The auxiliary circulation of baking bread-type baked food is a very important link.

(2) Simple structure such as fan subassembly, tee bend pipeline subassembly, air regulation subassembly that supplementary circulation subassembly had, it is convenient to implement, consequently, the utility model discloses wide market prospect has.

Drawings

Fig. 1 is a perspective view of a machine body corresponding to the present invention;

FIG. 2 is a schematic view of FIG. 1 from a positive x-axis viewing angle;

fig. 3 is a perspective view (with the outer shell hidden) of the structure of the auxiliary circulation assembly of the present invention;

FIG. 4 is a schematic view of FIG. 3 looking in the negative y-axis direction;

FIG. 5 is a schematic view of FIG. 3 from a view having a negative z-axis;

fig. 6 is a schematic view of the installation and cooperation of the blower and the three-way pipeline of the present invention;

fig. 7 is a perspective view of the gas delivery manifold of the present invention;

fig. 8 is a schematic view of fig. 7 from a negative y-axis view.

In the figure, 10, the body; 100. an auxiliary circulation component; 101. a three-way pipe assembly; 1011. an external air inlet input port; 1012. a normally closed valve; 1013. an internal circulation intake port; 1014. a first outlet port; 1015. An L-axis; 1016. a balancing weight; 102. a motor; 103. an internal circulation air return inlet; 104. an air volume adjusting component; 1041. a mixed gas inlet; 1042. a mixed gas outlet; 1043. adjusting a rod; 1044. a valve plate; 105. A volute; 106. a support; 20. the side end is open; 21. an expansion conduit; 22. a hot air blowing duct; 23. Side heat preservation.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1-8, the present invention provides a tunnel oven auxiliary heat convection circulation assembly, which includes but is not limited to: a machine body 10 and an auxiliary circulation assembly 100. The body 10 has a housing and a roasting chamber extending in a length direction of the body 10. The auxiliary circulation assembly 100 comprises a hot air internal circulation structure, a fresh air channel structure and a fan assembly; one end of the hot air internal circulation component is provided with an internal circulation air return opening 103 arranged inside the baking chamber, and the other end of the hot air internal circulation component is connected with an input end of the ventilator component; one end of the fresh air channel structure is communicated with the external atmospheric environment, and the other end of the fresh air channel structure is connected with the input end of the ventilator component; the fan assembly has an output port for providing a flow of air into the roasting chamber. Specifically, a passage for supplying heat air to realize internal circulation in the tunnel furnace body 10 is formed, and a fresh air passage for compensating external air to enter the interior of the tunnel furnace body 10 is formed. Specifically, the fan assembly includes, but is not limited to, a motor 102, a volute 105, and an impeller that is pivoted inside the volute 105. The motor 102 is mounted to the machine body 10 by a support 106.

In order to facilitate the feeding/discharging operation, as a preferred scheme, at least one side end opening 20 is formed at one end of the length direction of the roasting chamber.

As a preferred solution, a tunnel furnace auxiliary heat convection circulation assembly should further comprise a tee pipe assembly 101, the other end of said hot air internal circulation assembly being connected to the input end of the fan assembly through said tee pipe assembly 101; the other end of the fresh air channel structure is connected with an input end of the ventilator component through the three-way pipeline component 101.

As a preferred scheme, the fresh air channel structure includes an external air inlet input port 1011 and a normally closed valve 1012 disposed at the external air inlet input port 1011.

Preferably, a tunnel furnace auxiliary thermal convection circulation assembly further comprises a normally closed valve 1012, wherein the normally closed valve 1012 comprises an L-axis 1015 pivoted to the external air inlet port 1011, a movable plate installed on the L-axis 1015 inside the fresh air channel structure, and a counterweight 1016 installed on the L-axis 1015 outside the fresh air channel structure. When the blower does not work, the movable plate will turn over to the posture of closing the external air inlet input port 1011 under the gravity action of the counterweight 1016 on the L-axis 1015.

As a preferable scheme, a tunnel furnace auxiliary heat convection circulation assembly should further include an air volume adjusting assembly 104, an expansion pipe 21, and a hot air blowing pipe 22; the expansion pipeline 21 is installed in a side surface heat insulation layer 23 arranged at one end of the machine body 10 in the width direction, and the expansion pipeline 21 extends in the length direction; the number of the hot air blowing pipelines 22 is multiple, one end of each hot air blowing pipeline 22 is communicated with the expansion pipeline 21, the hot air blowing pipelines 22 are arranged in the length direction, and the side wall of each hot air blowing pipeline 22 is provided with a plurality of air outlet slits or air outlet holes; the air volume adjusting assembly 104 comprises a housing, the housing is provided with a mixed gas inlet 1041 communicated with an output port of the fan assembly, and the housing is provided with a mixed gas outlet 1042 communicated with one end of the expansion pipeline 21; a valve plate 1044 is arranged in the mixed gas outlet 1042, the valve plate 1044 is movably mounted on the inner wall of the housing, the valve plate 1044 is connected with an adjusting rod 1043 movably penetrating through the housing, and the adjusting rod 1043 is used for controlling the opening degree of the valve plate 1044 at the mixed gas outlet 1042 so as to allow an external operator to stir and adjust the opening degree.

The technical scheme disclosed by the utility model is implemented in the tunnel furnace equipment, and has the advantages that:

firstly, hot air convection is enhanced in the baking chamber, and over-concentration of heat is avoided, so that uniform heating of food is facilitated, and faults caused by heat accumulation at local positions are avoided;

according to the practice in the art, the addition of the auxiliary circulation device can enhance the hot gas circulation, thereby facilitating the temperature balance and improving the heating efficiency. The auxiliary circulation of baking bread-type baked food is a very important link.

Second, fan subassembly, three-way pipe assembly 101, air regulation subassembly 104 class simple structure that auxiliary cycle subassembly 100 had, implement the convenience, consequently, the utility model discloses wide market prospect has.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A tunnel oven assisted thermal convection circulation assembly comprising:

2. A tunnel oven assisted thermal convection circulation assembly as defined in claim 1 wherein: at least one side end opening is formed at one end of the baking chamber in the length direction.

3. A tunnel oven assisted thermal convection circulation assembly as defined in claim 1, further comprising: the other end of the hot air internal circulation component is connected with the input end of the ventilator component through the three-way pipeline component; the other end of the fresh air channel structure is connected with the input end of the ventilator component through the three-way pipeline component.

4. A tunnel oven assisted thermal convection circulation assembly as claimed in claim 3 wherein: the fresh air channel structure comprises an outer air inlet input port and a normally closed valve arranged on the outer air inlet input port.

5. A tunnel oven assisted thermal convection circulation assembly as claimed in claim 4 wherein: the normally closed valve comprises an L shaft pivoted to the external air inlet port, a movable plate arranged on the L shaft and located inside the fresh air channel structure, and a balancing weight arranged on the L shaft and located outside the fresh air channel structure.

6. The tunnel furnace auxiliary heat convection circulation assembly of claim 1, further comprising an air volume adjusting assembly, an expansion duct and a hot air blowing duct; the expansion pipeline is arranged in a side surface heat insulation layer arranged at one end of the machine body in the width direction and extends along the length direction; the number of the hot air blowing pipelines is multiple, one end of each hot air blowing pipeline is communicated with the expansion pipeline, and the hot air blowing pipelines are arranged in the length direction; the air quantity adjusting assembly comprises a shell, the shell is provided with a mixed gas inlet communicated with an output port of the fan assembly, and the shell is provided with a mixed gas outlet communicated with one end of the expansion pipeline; the mixed gas outlet is internally provided with a valve plate which is movably arranged on the inner wall of the shell, the valve plate is connected with an adjusting rod movably connected with the shell in a penetrating way, and the adjusting rod is used for controlling the opening degree of the valve plate at the mixed gas outlet.

7. A tunnel oven assisted thermal convection circulation assembly as defined in claim 1 wherein: the fan assembly comprises a motor, a volute and an impeller pivoted in the volute.