CN213841755U

CN213841755U - High-efficiency heating furnace

Info

Publication number: CN213841755U
Application number: CN202022866546.9U
Authority: CN
Inventors: 严森泉; 叶金虎; 黄碧云; 赵锋; 姚忠
Original assignee: LUODING POLYTECHNIC
Current assignee: LUODING POLYTECHNIC
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-30
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a heat treatment technology, in particular to a high-efficiency heating furnace, which comprises a furnace body, an electric heating wire, a heat sensor, a flow distribution box and a furnace door; the inner wall of the furnace body is at least provided with the electric heating wire on two sides, and the heat sensor is also arranged in the furnace body; the furnace door is arranged at the opening side of the furnace body; the shunt box is arranged outside the furnace body. The heating furnace has the advantages that the heating conductors are arranged on a plurality of surfaces in the heating furnace, so that the layout of the heating source is more comprehensive, the uniformity of heating workpieces in the furnace can be effectively improved, and the heating efficiency is also greatly improved; the processing temperature in the furnace is accurately controlled through the temperature feedback effect of the heat sensor, so that the processing quality can be improved; the heat sensor and the power cord are protected from heat, so that the accessories can be prevented from being damaged by high temperature of the furnace body, the service life can be prolonged, and the use cost can be reduced.

Description

High-efficiency heating furnace

Technical Field

The utility model relates to a heat treatment technology specifically is a high-efficient heating furnace.

Background

At present, a heating furnace is generally adopted for heating in the heat treatment processing process of metal and other products, and the principle is that a heating body (resistance wire, resistance tape or ceramic and the like) is utilized for heating, and a workpiece is heated in a radiation mode.

The heating body inside the existing heating furnace has single layout and low radiation efficiency, and the heating process does not have a temperature feedback mechanism, so that the uniformity of the furnace temperature hardly meets the standard requirement, and the quality of finished products is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient heating furnace to it is difficult to up to standard problem to propose heating efficiency low and furnace temperature homogeneity in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an efficient heating furnace comprises a furnace body, an electric heating wire, a heat sensor, a flow distribution box and a furnace door; the inner wall of the furnace body is at least provided with the electric heating wire on two sides, and the heat sensor is also arranged in the furnace body; the furnace door is arranged at the opening side of the furnace body; the shunt box is arranged outside the furnace body.

As a further solution, the top surface and the left and right side surfaces inside the furnace body are provided with mounting grooves which are in S-shaped coiling design, the shape of the heating wire is similar to that of the mounting grooves, and the distribution area of the heating body in unit area can be increased; the notch longitudinal section of this mounting groove is the major arc, and the internal diameter of this mounting groove is greater than the external diameter of this heating wire for the heating wire can the chucking in this mounting groove.

As a further solution, the open side of the furnace body is taken as the front side, and the electric heating wires have three groups including a first electric heating wire, a second electric heating wire and a third electric heating wire; the first electric heating wire is clamped in the mounting groove on the inner wall of the right side of the furnace body when the front side faces the interior of the furnace body; the second electric heating wire is clamped in the mounting groove at the top of the inner wall of the furnace body; the third electric heating wire is clamped in the mounting groove on the inner wall of the left side of the furnace body; the heating furnace can realize three-side heating during working.

As a further solution, the furnace body is provided with a central threaded hole and a through hole; the central threaded hole and the through hole penetrate through the shell of the furnace body; the central threaded hole is used for mounting the thermal sensor; the through hole is used for connecting an external power line with the electric heating wire.

As a further solution, the thermal sensor is mounted in the central threaded hole by means of a threaded sleeve; the thread sleeve is made of heat-resistant materials, such as glass fiber and the like, and can play a role in heat insulation protection for the heat sensor; the threaded sleeve is provided with an external thread surface and an internal thread surface; the external thread surface is contacted with the central threaded hole, and the internal thread surface is contacted with the thermal sensor; one end of the threaded sleeve connected with the heat sensor is of a hexagonal head structure, so that tools such as a wrench and the like can be conveniently used for assembling and disassembling the threaded sleeve.

As a further solution, the number of the through holes corresponds to the number of groups of the heating wires.

As a further solution, the outer shell of the furnace body is provided with a mounting seat made of a heat-resistant material; one end of the mounting seat is approximately and vertically fixed on the outer surface of the furnace body, and the other end of the mounting seat is designed into a folded angle and the folded surface is parallel to the outer surface of the furnace body; the folded surface is provided with a mounting hole for mounting the shunting box; the bevel design keeps a certain distance between the shunt box and the furnace wall, and the use of heat-resistant materials is beneficial to preventing the shunt box and the internal circuit from being damaged by high temperature generated by the heating furnace.

As a further solution, the shunt box is provided with a shunt outlet hole, a power supply access hole and a fixing hole; a main power cord enters the shunt box through the power supply access hole, is connected with a power supply end of the electric heating wire and then is led out through the shunt outlet hole; the fixing hole is matched with the mounting hole through a connecting piece to fix the shunting box on the mounting seat.

As a further solution, the number of the shunting wire outlet holes is equal to the number of the groups of the heating wires; the main power cord is connected with the power supply end of the electric heating wire in a star shape in the shunting box; star couplings produce thermal effects faster than delta couplings.

As a further solution, the bottom of the furnace body is connected with a base support, and universal wheels are mounted at the bottom of the base support, so that the heating furnace is convenient to move.

Compared with the prior art, the beneficial effects of the utility model are that:

1. heating conductors are arranged on a plurality of surfaces in the furnace, so that the heating source layout is more comprehensive, the uniformity of heating workpieces in the furnace can be effectively improved, and the heating efficiency is also greatly improved;

2. the heat sensor is arranged in the furnace, the processing temperature in the furnace is accurately controlled through temperature feedback, and the processing quality can be improved;

3. the heat sensor and the power cord are protected from heat, so that the accessories can be prevented from being damaged by high temperature of the furnace body, the service life can be prolonged, and the use cost can be reduced.

Drawings

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

FIG. 2 is an exploded view of a part of the structure of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged schematic structural view of a position a in fig. 3 of the present invention;

FIG. 5 is a schematic view of the structure of the inside of the furnace body and the notch of the utility model;

fig. 6 is the structure diagram of the flow distribution box of the present invention.

In the figure: 1. a furnace body; 3. a thermal sensor; 4. a shunt box; 5. a furnace door; 6. a base support; 11. a through hole; 12. a central threaded hole; 14. a mounting seat; 15. mounting grooves; 21. a first heating wire; 22. a second heating wire; 23. a third heating wire; 31. a threaded sleeve; 41. a shunt outlet hole; 42. a power access hole; 43. and (7) fixing holes.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a high-efficient heating furnace, includes furnace body 1, heating wire, thermal sensor 3, divides flow box 4 and furnace gate 5, and 1 internally mounted of furnace body has heating wire and

thermal sensor

3, and 1 outside of furnace body is provided with divides flow box 4, and the opening side at furnace body 1 is installed to furnace gate 5.

As shown in fig. 4 and 5, the furnace body 1 is provided with mounting grooves 15 therein, the mounting grooves 15 are distributed in the top surface and left and right sides in an S-shape, and the heating wire is mounted in the mounting grooves 15.

The shape of the electric heating wire is similar to that of the mounting groove 15, and the distribution area of the heating body can be increased due to the S-shaped design; the notch longitudinal section of mounting groove 15 has the major arc, the external diameter of heating wire slightly is less than the internal diameter of mounting groove 15, can make the heating wire chucking and prevent to drop in mounting groove 15 like this.

Further, as shown in fig. 1 and 2, the heating wires have three groups in total, including a first heating wire 21, a second heating wire 22, and a third heating wire 23; the first electric heating wire 21 is positioned in the mounting groove 15 on the inner wall of the right side of the furnace body 1; the second electric heating wire 22 is positioned in the mounting groove 15 at the top of the inner wall of the furnace body 1; the third heating wire 23 is positioned in the mounting groove 15 of the left inner wall of the furnace body 1.

Wherein, the heating furnace heats on three sides during working, and the heat sources are distributed in a triangular shape, so that the efficiency of the heating furnace is higher.

Further, as shown in fig. 2 and 3, a central threaded hole 12, a through hole 11 and a mounting seat 14 are arranged on the back surface of the furnace body 2, and the central threaded hole 12 and the through hole 11 penetrate through the shell of the furnace body 1; the thermal sensor 3 is arranged in the central threaded hole 12 through a threaded sleeve 31, and one end of the threaded sleeve 31, which is connected with the thermal sensor 3, is of a hexagonal head structure, so that the threaded sleeve 31 and the thermal sensor 3 can be conveniently mounted and dismounted; the threaded sleeve 31 has an external thread and an internal thread structure, and the thermal sensor 3 is screwed into the internal thread structure of the threaded sleeve 31 after the threaded sleeve 31 is screwed into the central threaded hole 12 through the external thread during installation.

Wherein, the thread sleeve 31 is made of heat insulating material, such as glass fiber; since the heating furnace generates a large amount of heat during operation, the threaded sleeve 31 can reduce the amount of heat transferred to the thermal sensor 3, and thus can extend the service life.

Further, the number of the through holes 11 is 3 for connecting the heating wire with an external power line.

Furthermore, the mounting seat 14 is in a right-angle plate shape, is made of a heat insulating material and is symmetrically distributed, one end of the mounting seat 14 is approximately vertically fixed on the outer surface of the furnace body 1, the other end of the mounting seat is in a folded angle design, the folded surface is parallel to the outer surface of the furnace body, and the folded surface is provided with a mounting hole for mounting the shunt box 4.

The folded angle design keeps a certain distance between the shunt box 4 and the furnace wall, and the use of heat-resistant materials is beneficial to preventing the shunt box 4 and the internal circuit from being damaged by high temperature generated by the heating furnace.

Further, as shown in fig. 6, one side of the shunting box 4, which is provided with the power access hole 42, is a front side, two ends of the power access hole 42 are respectively provided with the fixing holes 43, and the top side is provided with three shunting outlet holes 41; the main power cord enters the shunt box 4 through the power inlet hole 42, is connected with the power end of the heating wire, and then is led out through the shunt outlet hole 41; the distribution box 4 is fixed by screwing the fixing hole 43 and the mounting hole of the mounting base 14.

Inside the shunting box 4, the connection mode of the main power line and the power end of the electric heating wire is star connection, and the heating speed of the electric heating wire in the star connection mode is higher than that in the triangular connection mode, so that the waiting time during heating is reduced.

Further, the bottom of the furnace body 1 is connected with a base support 6, and universal wheels are installed at the bottom of the base support 6, so that the heating furnace can be conveniently moved.

In conclusion, in the embodiment, the heating wires are arranged on the left surface, the upper surface and the right surface in the heating furnace, so that the phenomenon that the temperature of one surface is too high can be avoided, a workpiece is heated more uniformly, and meanwhile, the three groups of heating wires work simultaneously, so that the heating efficiency is greatly improved; the arrangement of the heat sensor can better control the furnace temperature within a standard working range, and the processing quality of the workpiece is improved; the heat sensor and the power cord are protected from heat, so that the accessories can be prevented from being damaged by high temperature of the furnace body, the service life can be prolonged, and the use cost can be reduced.

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 high-efficient heating furnace, includes furnace body (1), heating wire, heat sensor (3), reposition of redundant personnel box (4) and furnace gate (5), its characterized in that: the heating wire is arranged on at least two surfaces of the inner wall of the furnace body (1), and the heat sensor (3) is arranged in the furnace body (1); the furnace door (5) is arranged on the opening side of the furnace body (1); the shunt box (4) is arranged outside the furnace body (1).

2. The high-efficiency heating furnace according to claim 1, characterized in that the top surface and the left and right side surfaces inside the furnace body (1) are provided with mounting grooves (15), and the mounting grooves (15) are in S-shaped coiled design; the longitudinal section of the notch of the mounting groove (15) is an arc; the inner diameter of the mounting groove (15) is larger than the outer diameter of the electric heating wire.

3. A high efficiency heating furnace according to claim 2, wherein: the opening side of the furnace body (1) is taken as the front side, and the electric heating wires are divided into three groups, including a first electric heating wire (21), a second electric heating wire (22) and a third electric heating wire (23); the first electric heating wire (21) is clamped in the mounting groove (15) on the right inner wall of the furnace body (1) when viewed from the front side to the interior of the furnace body (1); the second heating wire (22) is clamped in the mounting groove (15) at the top of the inner wall of the furnace body (1); the third heating wire (23) is clamped in the mounting groove (15) on the inner wall of the left side of the furnace body (1).

4. A high efficiency heating furnace according to any one of claims 1 to 3, characterized in that the furnace body (1) is provided with a central threaded hole (12) and a through hole (11); the central threaded hole (12) and the through hole (11) penetrate through the shell of the furnace body (1); the central threaded hole (12) is used for mounting the thermal sensor (3); the through hole (11) is used for connecting an external power line with the electric heating wire.

5. A high efficiency heat furnace according to claim 4, characterized in that said thermal sensor (3) is mounted in said central threaded hole (12) by means of a threaded sleeve (31); the thread sleeve (31) is made of heat-resistant materials and is provided with an external thread surface and an internal thread surface; the male thread face is in contact with the central threaded hole (12) and the female thread face is in contact with the thermal sensor (3); the thread bush (31) is connected with one end of the heat sensor (3) and is in a hexagonal head structure.

6. The high-efficiency heating furnace according to claim 4, wherein the number of the through holes (11) corresponds to the number of the groups of the heating wires.

7. A high efficiency heating furnace according to claim 1, characterized in that the casing of the furnace body (1) is provided with a mounting seat (14), said mounting seat (14) being made of heat resistant material; one end of the mounting seat (14) is approximately and vertically fixed on the outer surface of the furnace body (1), and the other end of the mounting seat is designed to be a bevel and the bevel is parallel to the outer surface of the furnace body (1); the folded surface is provided with a mounting hole for mounting the shunting box (4).

8. The high-efficiency heating furnace according to claim 7, characterized in that the shunting box (4) is provided with a shunting outlet hole (41), a power supply access hole (42) and a fixing hole (43); a main power line enters the shunting box (4) through the power supply access hole (42), is connected with a power supply end of the heating wire and then is led out through the shunting wire outlet hole (41); the fixing hole (43) is matched with the mounting hole through a connecting piece, so that the shunt box (4) is fixed on the mounting seat (14).

9. The high efficiency heating furnace according to claim 8, wherein the number of said branch outlet holes (41) is equal to the number of said groups of heating wires; the main power cord and the power supply end of the electric heating wire are connected in a star shape in the shunting box (4).

10. The high-efficiency heating furnace according to claim 1, characterized in that a base support (6) is connected to the bottom of the furnace body (1), and universal wheels are installed at the bottom of the base support (6).