CN203857793U

CN203857793U - Chamber electric furnace

Info

Publication number: CN203857793U
Application number: CN201420219618.2U
Authority: CN
Inventors: 邱鹏
Original assignee: CHANGZHOU METRO EVERBRIGHT HEAT TREATMENT CO LTD
Current assignee: CHANGZHOU METRO EVERBRIGHT HEAT TREATMENT CO LTD
Priority date: 2014-04-28
Filing date: 2014-04-28
Publication date: 2014-10-01
Anticipated expiration: 2024-04-28

Abstract

The utility model relates to a chamber electric furnace. The chamber electric furnace comprises a furnace body and a furnace door. The furnace door is arranged on the furnace body. Air cylinders enabling the furnace door to vertically move are arranged on the two sides of the furnace door. The furnace door is in sliding connection with the furnace body. The furnace body comprises an outer shell and an inner shell. A vacuum gap is formed between the outer shell and the inner shell. The inner wall of the inner shell is covered with heat-resisting bricks. Heating elements are evenly arranged between the heat-resisting bricks on the two side faces of the inner wall of the inner shell. Two parallel vertical heat-insulation boards are fixed to the top face of the inner wall of the inner shell. A gap is formed between the lower end of each heat-insulation board and the bottom face of the inner wall of the inner shell. According to the chamber electric furnace, the furnace door is pushed through the air cylinders, so that labor force is saved; the heat-insulation boards are additionally arranged in the furnace body to guide transmission of heat, so that an evener heating effect is achieved; the vacuum gap is additionally arranged between the outer shell and the inner shell, and therefore the heat-insulation effect is improved.

Description

Chamber type electric resistance furnace

Technical field

The utility model relates to Equipment for Heating Processing field, particularly a kind of chamber type electric resistance furnace.

Background technology

Resistance furnace is that heat treatment industry uses comparatively frequently with a kind of Equipment for Heating Processing, be mainly to utilize electric current to make the heating element heater evolution of heat of resistance furnace inside, thereby workpiece or the material realized body of heater inside heats.

Also there is refractory brick to carry out heat insulation and insulation although the body of heater of traditional resistance furnace is inner, but do not reach desirable effect.Because hot-air moves upward, so when the workpiece in body of heater is heated, the workpiece in top is better than the workpiece heating effect of below, make various test datas uneven thereby cause a collection of workpiece because heating is inhomogeneous again.In prior art, what fire door generally adopted is that the method that manual rotation chain gear transmission fire door rises or declines realizes unlatching or closes fire door, and this mode is labor intensive relatively.

Utility model content

The technical problems to be solved in the utility model is: in order to overcome the deficiencies in the prior art, provide a kind of automaticity high, and simple to operate, safe chamber type electric resistance furnace.

The utility model solves the technical scheme that its technical problem adopts: a kind of chamber type electric resistance furnace, comprise body of heater and fire door, described fire door is arranged on body of heater, described fire door both sides are provided with the cylinder that can make fire door move up and down, fire door and body of heater are slidably connected, described body of heater comprises shell and inner casing, between described shell and inner casing, be provided with vacuum gap, on the inwall of described inner casing, be coated with heat resisting brick, between the heat resisting brick of the inwall two sides of described inner casing, be equipped with heating element heater, on the inwall end face of described inner casing, be fixed with two vertical thermal insulation boards, the end face sealing of described thermal insulation board upper end and inner casing inwall, between the bottom surface of described thermal insulation board lower end and inner casing inwall, there is gap.

Thermal insulation board is arranged on to the both sides in stove, just to heating element heater, the heat that heating element heater is sent after energising cannot be directly delivered to body of heater middle part, but along thermal insulation board from top to bottom, go out along the gap between thermal insulation board lower end and the bottom surface of inner casing inwall, then transmit from bottom to top, make the workpiece in body of heater be subject to ratio of specific heat originally more even.

In order to improve heat insulation effect, described body of heater and fire door junction are provided with sealing ring.

For heat resisting brick is sticked together better, soft sticky bonding by fiber between described heat resisting brick.

In order to increase inner heating space, described two thermal insulation boards are symmetrical, are separately positioned on the two ends of the inwall end face of inner casing.

The beneficial effects of the utility model are: this chamber type electric resistance furnace is by adopting cylinder to push fire door, save labour, dominate the transmission of heat by set up thermal insulation board in body of heater, make heating effect more even, by set up vacuum layer between shell and inner casing, improve heat insulation effect.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is the structural representation of chamber type electric resistance furnace of the present utility model;

Fig. 2 is the cutaway view of chamber type electric resistance furnace of the present utility model;

In figure: 1. shell, 2. cylinder, 3. fire door, 4. inner casing, 5. refractory brick, 6. heating software, 7. thermal insulation board.

Detailed description of the invention

By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.

As shown in Figure 1, a kind of chamber type electric resistance furnace, comprise body of heater and fire door 3, described fire door 3 is arranged on body of heater, described fire door 3 both sides are provided with the cylinder 2 that can make fire door move up and down, fire door 3 is slidably connected with body of heater, described body of heater comprises shell 1 and inner casing 4, between described shell 1 and inner casing 4, be provided with vacuum gap, on the inwall of described inner casing 4, be coated with heat resisting brick 5, between the heat resisting brick 5 of the inwall two sides of described inner casing 4, be equipped with heating element heater 6, on the inwall end face of described inner casing 4, be fixed with two parallel vertical thermal insulation boards 7, the end face sealing of described thermal insulation board 7 upper ends and inner casing 4 inwalls, between the bottom surface of described thermal insulation board 7 lower ends and inner casing 4 inwalls, there is gap.

In order to improve heat insulation effect, described body of heater and fire door 3 junctions are provided with sealing ring.

For heat resisting brick 5 is sticked together better, soft sticky bonding by fiber between described heat resisting brick 5.

In order to increase inner heating space, described two thermal insulation boards 7 are symmetrical, are separately positioned on the two ends of the inwall end face of inner casing 4.

The opening of body of heater is sealed capping completely by fire door 3, fire door 3 both sides are fixed with contiguous block, and the gas masthead of cylinder 2 is on contiguous block, in the time that needs are opened fire door 3, only need to start cylinder 2, by upwards jack-up of contiguous block, synchronously, by upwards jack-up of fire door 3, realize the unlatching of fire door 3, and this wherein, fire door 3 is to be slidably connected with body of heater, and fire door 3 is to slide along fire door 3 and the slide rail of body of heater junction, and this slide rail has played the fixing and guide effect to fire door 3.

Thermal insulation board 7 is arranged on to the both sides in stove, just to heating element heater 6, the heat that heating element heater 6 is sent after energising cannot be directly delivered to body of heater middle part, but along thermal insulation board 7 from top to bottom, go out along thermal insulation board 7 and the space of bottom surface, then transmit from bottom to top, make the workpiece in body of heater be subject to ratio of specific heat originally more even.

Between inner casing 4 and shell 1, vacuum layer is set, can effectively plays thermal insulation function.

The beneficial effects of the utility model are: this chamber type electric resistance furnace is by adopting cylinder to push fire door 3, save labour, dominate the transmission of heat by set up thermal insulation board 7 in body of heater, make heating effect more even, by set up vacuum layer between shell 1 and inner casing 4, improve heat insulation effect.

Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.

Claims

1. a chamber type electric resistance furnace, comprise body of heater and fire door, described fire door is arranged on body of heater, it is characterized in that, described fire door both sides are provided with the cylinder that can make fire door move up and down, fire door and body of heater are slidably connected, described body of heater comprises shell and inner casing, between described shell and inner casing, be provided with vacuum gap, on the inwall of described inner casing, be coated with heat resisting brick, between the heat resisting brick of the inwall two sides of described inner casing, be equipped with heating element heater, on the inwall end face of described inner casing, be fixed with two parallel vertical thermal insulation boards, the end face sealing of described thermal insulation board upper end and inner casing inwall, between the bottom surface of described thermal insulation board lower end and inner casing inwall, there is gap.

2. chamber type electric resistance furnace as claimed in claim 1, is characterized in that, described body of heater and fire door junction are provided with sealing ring.

3. chamber type electric resistance furnace as claimed in claim 1, is characterized in that, soft sticky bonding by fiber between described heat resisting brick.

4. chamber type electric resistance furnace as claimed in claim 1, is characterized in that, described two thermal insulation boards are symmetrical, is separately positioned on the two ends of the inwall end face of inner casing.