CN210491243U

CN210491243U - Novel electric heating tube

Info

Publication number: CN210491243U
Application number: CN201921331376.5U
Authority: CN
Inventors: 邱光华
Original assignee: Shenzhen Zhengdachang Technology Co Ltd
Current assignee: Shenzhen Zhengdachang Technology Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-05-08
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to a firing equipment technical field just discloses a novel electrothermal tube, including the tubular metal resonator, the left end of tubular metal resonator is equipped with the cold junction, and the right-hand member fixedly connected with end cap of tubular metal resonator, the fixed high temperature line that has cup jointed in middle part of end cap, the high temperature line passes the inside that the end cap extends to the tubular metal resonator, and the left end fixedly connected with heating wire of high temperature line. The utility model discloses a cut away traditional electrothermal tube bottom recessed cold junction part and change into flat, make the inside heating wire of electrothermal tube under the same length obtain effectual extension, thereby the load of heating wire under the same condition has been reduced, the life of heating tube has been promoted, the heating efficiency of heating tube has been improved, the effective length of generating heat of heating tube has been increased simultaneously, it is even to have guaranteed that the bottom of treating the heating mould heats, it is even to ensure to make whole module temperature, thereby the heating effect of electrothermal tube has been promoted, the rationality and the reliability of electrothermal tube have been improved.

Description

Novel electric heating tube

Technical Field

The utility model relates to a firing equipment technical field specifically is a novel electrothermal tube.

Background

The electric heating tube is an electric heating element which converts electric energy into heat energy, the heat energy is diffused to the metal tube by heating the electric heating wire, and therefore the heat energy is transferred to an external contact object, the electric heating tube is simpler in energy conversion, the reasonable design of the heating tube can improve the efficiency of the energy conversion, and the loss in the conversion process is reduced as much as possible.

The bottom of current electrothermal tube is concave towards the inside, form an curved recess, but such design leads to the cold junction of electrothermal tube bottom longer, the length of the interior heating wire of electrothermal tube has been reduced, the life of heating tube has been reduced, the effective length of generating heat of heating tube has been reduced simultaneously, the bottom that leads to treating the heating mould heats inadequately, thereby it is inhomogeneous to make whole module temperature, the heating effect of electrothermal tube has been reduced, and the bottom of electrothermal tube is the recess form, can't be directly with the bottom of electrothermal tube as the use face when the punching press heats, need add the mould in addition in the recess and just can reach the heating effect, the practicality that leads to the electrothermal tube is poor, therefore we have proposed a novel electrothermal tube.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel electrothermal tube, possess the advantage that the heating effect is good, heating efficiency is high and the practicality is high, solved the problem mentioned among the above-mentioned background art.

The utility model provides a following technical scheme: the utility model provides a novel electrothermal tube, includes the tubular metal resonator, the left end of tubular metal resonator is equipped with the cold junction, and the right-hand member fixedly connected with end cap of tubular metal resonator, the fixed high temperature line that has cup jointed in middle part of end cap, the high temperature line passes the inside that the end cap extends to the tubular metal resonator, and the left end fixedly connected with heating wire of high temperature line, the inside packing of tubular metal resonator has the magnesia powder of parcel in the heating wire outside.

Preferably, the metal pipe is a cylinder, and the metal pipe and the cold end are of an integrated structure.

Preferably, the thickness value of the cold end is the same as that of the metal tube, and the diameter value of the cold end is equal to that of the outer diameter of the metal tube.

Preferably, the inner diameters of the plug and the metal tube are equal, and the thickness value of the plug is larger than that of the cold end.

Preferably, the high-temperature wire is divided into a positive wire and a negative wire, and the left ends of the wires are respectively connected with the heating wires.

Preferably, the left ends of the heating wires are connected together, and the heating wires are wave-shaped.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses a cut away traditional electrothermal tube bottom recessed cold junction part and change into flat, make the inside heating wire of electrothermal tube under the same length obtain effectual extension, thereby the load of heating wire under the same condition has been reduced, the life of heating tube has been promoted, the heating efficiency of heating tube has been improved, the effective length of generating heat of heating tube has been increased simultaneously, it is even to have guaranteed that the bottom of treating the heating mould heats, it is even to ensure to make whole module temperature, thereby the heating effect of electrothermal tube has been promoted, the rationality and the reliability of electrothermal tube have been improved.

2. The utility model discloses a plane cold junction structure of electrothermal tube bottom makes the use face when the bottom of electrothermal tube can directly regard as the punching press heating, has avoided adding the mould in addition in the recess before the heating and just can reach the heating effect, has guaranteed that the electrothermal tube can treat at any time that the heating mould heats to the rationality and the practicality of electrothermal tube have been improved.

Drawings

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

fig. 2 is a perspective view of the present invention.

In the figure: 1. a metal tube; 2. a cold end; 3. a plug; 4. a high temperature line; 5. an electric heating wire; 6. and (3) magnesium oxide powder.

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. 1-2, a novel electric heating tube comprises a metal tube 1, the metal tube 1 is a cylinder, the metal tube 1 and a cold end 2 are integrated, the metal tube 1 is a cylinder and the metal tube 1 and the cold end 2 are integrated, so that the heating efficiency of the electric heating tube with the metal tube 1 and the cold end 2 is improved, and the heating wires 5 inside the electric heating tube with the same length are effectively lengthened, thereby reducing the load of the heating wires 5 under the same condition, prolonging the service life of the electric heating tube, improving the heating efficiency of the electric heating tube, increasing the effective heating length of the electric heating tube, ensuring the bottom of a mold to be heated to be uniformly heated, ensuring the uniform temperature of the whole module, improving the heating effect of the electric heating tube, improving the rationality and reliability of the electric heating tube, the cold end 2 is arranged at the left end of the metal tube 1, and the thickness value of the cold end 2 is the same as the thickness value of the metal tube 1, and the diameter value of the cold end 2 is equal to the outer diameter value of the metal tube 1, the thickness value of the cold end 2 is equal to the thickness value of the metal tube 1, and the diameter value of the cold end 2 is equal to the outer diameter value of the metal tube 1, so that the heating wire 5 in the electric heating tube with the same length is effectively lengthened, the effective heating length of the heating tube is increased, the bottom of a die to be heated is ensured to be uniformly heated, the temperature of the whole module is ensured to be uniform, the heating effect of the electric heating tube is improved, the rationality and the reliability of the electric heating tube are improved, on the other hand, the bottom of the electric heating tube can be directly used as a use surface during stamping heating through the planar cold end 2 structure at the bottom of the electric heating tube, the heating effect can be achieved only by additionally adding a die in a groove before heating, the electric heating tube can be ensured to heat the die to be heated, and the right end of the metal tube 1 is fixedly connected with a plug 3, the inner diameter values of the plug 3 and the metal tube 1 are equal, the thickness value of the plug 3 is larger than that of the cold end 2, the plug 3 is tightly connected with the metal tube 1 by the inner diameter value of the plug 3 and the metal tube 1 being equal and the thickness value of the plug 3 being larger than that of the cold end 2, the firmness of the high temperature wire 4 is ensured, the heat is prevented from being dissipated through the plug 3, the efficiency of energy conversion is improved, and the stability and reliability of the electric heating tube are improved, the high temperature wire 4 is fixedly sleeved in the middle of the plug 3, the high temperature wire 4 is divided into a positive electric wire and a negative electric wire, the left ends of the electric wires are respectively connected with an electric heating wire 5, the electric heating function of the electric heating wire 5 is realized, and the electric energy passing through the high temperature wire 4 is maximally ensured to be converted into heat energy, thereby increasing the temperature of the magnesium oxide powder 6, transferring the heat to the metal tube 1 through the magnesium oxide powder 6, and then transferring the heat to the mold to be heated, avoiding the loss of energy in the process of energy conversion to the maximum extent, thereby improving the economic benefit brought by the electric heating tube, improving the rationality and reliability of the electric heating tube, wherein the high temperature wire 4 passes through the plug 3 and extends to the inside of the metal tube 1, the left end of the high temperature wire 4 is fixedly connected with the electric heating wire 5, the left ends of the electric heating wires 5 are connected together, the shape of the electric heating wire 5 is wave-shaped, the contact area between the electric heating wire 5 and the magnesium oxide powder 6 under the same condition is increased by connecting the left ends of the two electric heating wires 5 together and the shape of the electric heating wire 5 is wave-shaped, the heating efficiency is improved to the maximum extent, the heating rate of the magnesium oxide powder 6 is accelerated, and the bottom, the temperature of the whole module is ensured to be uniform, so that the heating effect of the electric heating tube is improved, the rationality of the electric heating tube is improved, and the magnesium oxide powder 6 wrapped outside the electric heating wire 5 is filled in the metal tube 1.

The working principle is as follows: firstly, electrifying the high-temperature wire 4, then electrifying the heating wire 5 to enable the high-temperature wire 4 and the heating wire 5 to form a closed loop, converting electric energy into heat energy through the heating wire 5 and transmitting the heat energy to the magnesium oxide powder 6, then transmitting the heat energy to the metal tube 1 through the magnesium oxide powder 6, and transmitting the energy to a mold to be heated, which is in contact with the metal tube 1, through the metal tube 1 to realize energy conversion.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

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. A novel electric heating tube comprises a metal tube (1), and is characterized in that: the left end of tubular metal resonator (1) is equipped with cold junction (2), and right-hand member fixedly connected with end cap (3) of tubular metal resonator (1), the fixed cover in middle part of end cap (3) has connected high temperature line (4), high temperature line (4) pass end cap (3) and extend to the inside of tubular metal resonator (1), and the left end fixedly connected with heating wire (5) of high temperature line (4), the inside packing of tubular metal resonator (1) has magnesium oxide powder (6) of parcel in the heating wire (5) outside.

2. The novel electrical heating tube of claim 1, wherein: the metal tube (1) is a cylinder, and the metal tube (1) and the cold end (2) are of an integrated structure.

3. The novel electrical heating tube of claim 1, wherein: the thickness value of cold junction (2) is the same with the thickness value of tubular metal resonator (1), and the diameter value of cold junction (2) is equal with the external diameter value of tubular metal resonator (1).

4. The novel electrical heating tube of claim 1, wherein: the inner diameter of the plug (3) is equal to that of the metal pipe (1), and the thickness of the plug (3) is larger than that of the cold end (2).

5. The novel electrical heating tube of claim 1, wherein: the high-temperature wire (4) is divided into a positive wire and a negative wire, and the left ends of the wires are respectively connected with an electric heating wire (5).

6. The novel electrical heating tube of claim 1, wherein: the left ends of the electric heating wires (5) are connected together, and the electric heating wires (5) are wavy.