CN111615228A

CN111615228A - Novel repairable infrared electric heating ring

Info

Publication number: CN111615228A
Application number: CN202010432470.0A
Authority: CN
Inventors: 何海兵
Original assignee: Aiksen Jiangsu Energy Saving Electrothermal Technology Co ltd
Current assignee: Aiksen Jiangsu Energy Saving Electrothermal Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-09-01

Abstract

The invention discloses a novel repairable infrared electric heating ring, which comprises a heating cylinder body, wherein the heating cylinder body is composed of two symmetrical semi-ring cylinder bodies, a plurality of heating pipes for heating are radially arranged in the heating cylinder body, a heat dissipation prevention blocking mechanism is arranged on the butt joint surface of each semi-ring cylinder body, a plurality of clamp rings are fixed on the inner wall of the heating cylinder body at intervals in the radial direction, a plurality of pipe holes are formed in each clamp ring, the plurality of heating pipes are arranged on the inner wall of a feeding and discharging channel in a sliding and suspending mode along the radial direction through the pipe holes for one circle, wiring grooves with top covers are formed in the front end surface and the rear end surface of each semi-ring cylinder body, power supply wiring ends of the heating pipes penetrate into the wiring grooves, and a whole conductive bar for; the invention can quickly replace and maintain a single group of heating pipes, and the stepped butt joint surface reduces the heat loss.

Description

Novel repairable infrared electric heating ring

Technical Field

The invention particularly relates to a heating ring for a screw extruder, in particular to a novel repairable infrared electric heating ring.

Background

In order to ensure the temperature of internal materials in the discharging process, an electric heating ring is arranged outside a screw extruding cylinder of the extruder in a surrounding mode, the electric heating ring is generally a cylinder body capable of being opened and closed, and a heating pipe is arranged on the inner wall of the cylinder body in a surrounding mode.

At present, the inner heating pipes of the common heating pipe type barrel electric heating ring are uniformly installed in a whole group, wherein a single group of heating pipes are damaged and cannot be flexibly replaced, the whole group of heating pipes need to be disassembled for maintenance and need to be returned to the factory for maintenance, and the whole group of heating ring is stopped and cannot be normally used.

Therefore, in response to such problems, there is a need for an electric heating ring that can be quickly replaced and repaired by a single set of heating pipes and is not prone to heat dissipation.

Disclosure of Invention

The present invention aims at providing a novel repairable infrared electric heating coil to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a novel repairable infrared electric heating coil comprises a heating cylinder body, wherein the heating cylinder body is composed of two semi-ring cylinder bodies, a plurality of heating pipes for heating are radially arranged in the heating cylinder body, the outer side walls of the butt joint parts of the two sides of the two semi-annular cylinder bodies are respectively rotationally connected and locked through a hinge assembly and a lock catch assembly, the butt joint surface of the semi-annular cylinder body is provided with a blocking mechanism for preventing heat dissipation, a plurality of clamp rings are fixed on the inner wall of the heating cylinder body at intervals in the radial direction, a plurality of pipe holes are formed in the clamp rings, a plurality of heating pipes are arranged on the inner wall of the feeding and discharging channel in a sliding and penetrating mode along the radial direction and are suspended in the pipe holes for one circle, the front end face and the rear end face of the semi-annular cylinder are provided with wiring grooves with top covers, power supply terminal heads of the heating pipes penetrate into the wiring grooves, and the inner sides of the wiring grooves are provided with a whole conductive bar for connecting power lines of the heating pipes.

Further scheme: the blocking mechanism comprises a trapezoidal butt joint surface which is formed by mutually clamping butt joint surfaces of the semi-annular cylinder bodies.

Further scheme: the separation mechanism comprises flexible materials which are relatively attached to the butt joint surfaces of the semi-annular cylinders.

Further scheme: the terminal port that both ends were used for drawing forth the power cord around the heating pipe is equipped with the cap, and the top cap covers the open-top of wiring groove through the bolt seal, and the interior bottom surface of top cap and the contact of cap top compress tightly.

Further scheme: the bottom in the wiring groove is composed of an insulation fixing frame, the heating pipe is arranged on the insulation fixing frame in a penetrating mode, and the bus bar is arranged on the insulation fixing frame on one side of the heating pipe.

Further scheme: heating barrel outside-in is equipped with reflector panel, heat preservation and shell in proper order, the shell passes through the holding screw to be fixed in the heat preservation outside, and the heat preservation leaves with the shell thermal-insulated clearance, holding screw is equipped with the cross-under sealing washer that is used for keeping apart holding screw and shell direct meeting with wearing to establish mouthful cover of shell, holding screw's outer end skull is equipped with and is used for thermal-insulated helmet, many strengthening ribs are installed to the inside wall of shell.

Further scheme: the conductive bars are electrically connected with power sockets outside the heating cylinder body through wires arranged in the heat insulation gaps, and the semi-ring-shaped cylinder body is provided with one power socket respectively.

Compared with the prior art, the invention has the beneficial effects that:

1. the heating pipes in a single group can be replaced at will on site, and the problems that all the heating pipes cannot be replaced, the heating pipes must be returned to the factory for maintenance, the shutdown loss of customers is huge, the time is up to several days, and the influence on foreign markets is greater are solved;

2. the arranged flexible material can greatly reduce the heat dissipation, a trapezoidal butt joint surface in a stepped opening form is created for the first time, and the stepped opening of the electric heating ring further improves the blocking effect;

A. the heat loss is reduced, the sealing performance is better, and the energy conservation and emission reduction are facilitated;

B. the thermoelectric conduction path of the trapezoidal butt joint surface is longer, so that the temperature of the shell is lower, the environment is more friendly, and the scalding risk and the workshop temperature are reduced;

3. the internal heating module is suspended in the heat-insulating layer of the shell by adopting a suspension structure, and the connection of the inner shell and the outer shell is isolated by utilizing an isolation screw, a cross-connecting sealing ring and a protective cap, so that the heat dissipation and the temperature of the shell are further reduced;

4. the two end faces are provided with conductive strips, all the current of the resistance wire is led to the conductive strips, and the conductive strips are fixed at the beginning and lead to the switch, so that the later maintenance only needs to connect the cold ends of the resistance wire to the conductive strips; all resistance wires in the existing market are directly connected with leads to the outside of the electric heating coil, so that field maintenance cannot be directly caused;

5. the fixed reinforcing ribs are added on the shell, the reinforcing ribs can fix the top cover, the material of the shell can be made to be more attached to the circumference, and meanwhile, the rigidity of the shell is increased;

6. the power supply seats are respectively arranged on the two semi-ring-shaped cylinder shells, the internal cables between the two semi-ring-shaped cylinders are removed, the two semi-ring-shaped cylinders can be independently and separately replaced or maintained after the adjustable split hinge is used, the problem of excessive thermal aging of the internal cables in a cross area is solved, and the service life of the whole heating ring is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a novel repairable infrared electrothermal ring (embodiment 1).

Fig. 2 is a schematic structural diagram of the bottom of the novel repairable infrared electric heating coil.

Fig. 3 is a schematic structural diagram of the interior of the novel repairable infrared electric heating coil.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of an isolation screw in the novel repairable infrared electric heating coil.

Fig. 6 is a schematic view of the installation position of the isolation screw in the new repairable infrared electric heating coil.

Fig. 7 is a schematic structural diagram of a novel repairable infrared electrothermal ring (embodiment 2).

In the figure: the heating device comprises a heating cylinder body 1, a feeding and discharging channel 10, a top cover 11, a wiring groove 12, a conductive strip 13, a reflector 14, a heat-insulating layer 15, a shell 16, a trapezoidal butt joint surface 17, an insulating fixing frame 18, a heating pipe 2, a clamp ring 20, a buckle 3, a hook 30, a hinge block 31, a power socket 4, an isolation screw 5, a cross-connecting sealing ring 50 and a protective cap 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 7, in the embodiment of the present invention, a novel repairable infrared electric heating coil includes a heating cylinder 1, the heating cylinder 1 is composed of two semi-ring cylinders, a plurality of heating pipes 2 for heating are radially installed in the heating cylinder 1, outer side walls of two side butt joints of the two semi-ring cylinders are rotatably connected and locked by a hinge assembly and a locking assembly respectively, a blocking mechanism for preventing heat dissipation is disposed on a butt joint surface of the semi-ring cylinders, a plurality of clamp rings 20 are radially fixed on an inner wall of the heating cylinder 1 at intervals, a plurality of pipe holes are disposed on the clamp rings 20, the plurality of heating pipes 2 are radially slidably disposed through the pipe holes and suspended on an inner wall of a feeding and discharging passage 10, wiring grooves 12 with top covers 11 are disposed on front and rear end surfaces of the semi-ring cylinders, power supply wiring ends of the heating pipes 2 penetrate into the wiring grooves 12, inside the wiring slot 12 is mounted a one-piece conductive strip 13 for connection to the power supply line of the heating tube 2.

The separation mechanism comprises a flexible material which is relatively attached to the butt joint surface of the semi-annular cylinder, the flexible material is suitable for the trapezoid butt joint surface and is also suitable for a traditional linear opening, heat emission can be greatly reduced, the sealing performance is better, and energy conservation and emission reduction are achieved.

The port that the both ends were used for drawing forth the power cord around heating pipe 2 is equipped with the cap, and top cap 11 covers the open-top of wiring groove 12 through the bolt seal, and the interior bottom surface of top cap 11 compresses tightly with the contact of cap top to, heating pipe 2 is whole to be pressed from both sides and realizes fixing between two top caps 11.

The heating cylinder 1 is sequentially provided with a reflector 14, a heat-insulating layer 15 and a shell 16 from outside to inside, the shell 16 is fixed on the outer side of the heat-insulating layer 15 through the isolation screw 5, a heat-insulating gap is reserved between the heat-insulating layer 15 and the shell 16, the penetrating openings of the isolation screw 5 and the shell 16 are sleeved with penetrating sealing rings 50 used for directly connecting the isolation screw 5 and the shell 16, the outer end cover of the isolation screw 5 is provided with a protective cap 51 for heat insulation, the arranged isolation screw 5 can isolate and fix the outer shell 16 and the heat insulation layer 15 with higher temperature, thereby preventing the outer layer of the outer shell 16 from overheating, in order to further prevent the heat conduction of the isolation screw 5, a protective cap 51 is additionally arranged for isolation, and in order to prevent the heat conduction of the isolation screw 5 to the shell 16, a cross-connecting sealing ring 50 is additionally arranged for isolating the isolation screw 5 from the shell 16, so that the problem of overhigh temperature at the shell 16 and the isolation screw 5 is solved.

The bus bar 13 is electrically connected with the power socket 4 arranged outside the heating cylinder 1 through the wiring arranged in the heat insulation gap, the semi-ring cylinders are respectively provided with the power socket 4, the independently arranged power socket 4 avoids the two semi-ring cylinders from crossing the region to carry out internal wiring, the problems of complexity in wiring and excessive thermal aging at the joint of the cable crossing region can be reduced, and the service life of the whole heating ring is prolonged.

The working principle of the invention is as follows: when the heating pipe 2 in the heating cylinder 1 needs to be replaced and overhauled, the locking buckle assembly is opened, the two semi-ring cylinders are opened, the position of the heating pipe 2 needing to be replaced is determined, the top covers 11 at two ends of the heating cylinder 1 are opened, the screws of the power ends of the heating pipe 2 and the conductive strips 13 are screwed out, the heating pipe 2 is directly taken out of the heating cylinder 1, the new heating pipe 2 is inserted into the heating cylinder 1 again, the power connection wires at two ends of the heating pipe 2 are fixed onto the conductive strips 13 by the screws again, the top covers 11 are covered tightly, the overhauling and replacing processes of the single heating pipe 2 can be completed, the whole group of heating pipes 2 do not need to be disassembled and replaced, the overhauling and replacing are fast, the maintenance speed of the single heating pipe 2 is greatly improved, and the maintenance cost of.

Example 2

This example differs from example 1 in that:

the blocking mechanism comprises a trapezoidal butt joint surface 17 which is formed by mutually clamping the butt joint surfaces of the semi-annular cylinder bodies, the trapezoidal butt joint surface in a step-shaped opening form is created for the first time, and the step-shaped opening of the electric heating ring further improves the blocking effect.

The bottom comprises insulating mount 18 in wiring groove 12, and heating pipe 2 wears to establish on insulating mount 18, and conducting bar 13 is installed on the insulating mount 18 of heating pipe 2 one side, and the insulating mount 18 that sets up is used for fixed heating pipe 2 on the one hand, and on the other hand is used for insulating the isolation with heating pipe 2 and conducting bar 13, prevents that conducting bar 13 and the direct short circuit of heating pipe 2 pipe wall from.

Many strengthening ribs are installed to the inside wall of shell 16, and the strengthening rib of setting can carry out fine moulding to shell 16 and keep, prevents that shell 16 from being heated inflation or other deformation problems, and wherein the strengthening rib can make things convenient for the installation of top cap 11.

The hinge assembly comprises a plurality of hinge blocks 31 arranged along the adjacent outer walls of the butt joint of the two semi-ring type barrels, and the plurality of hinge blocks 31 can realize the turning opening and closing of the semi-ring type barrels.

The lock catch assembly comprises a buckle 3 and a hook 30 which are respectively fixed on the adjacent outer side walls of the butt joint of the two semi-annular cylinders, a hanging ring which can be turned is arranged on the buckle 3, and the hanging ring and the hook 30 are installed in a matched mode.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel repairable infrared electric heating ring comprises a heating cylinder body (1), wherein the heating cylinder body (1) is composed of two semi-annular cylinder bodies, a plurality of heating pipes (2) for heating are radially arranged in the heating cylinder body (1), and the outer side walls of the butt joint positions of the two sides of the two semi-annular cylinder bodies are rotatably connected and locked through a hinge assembly and a lock catch assembly respectively;

its characterized in that, the butt joint face of semi-annular barrel is equipped with and prevents radiating separation mechanism, the inner wall radial interval of heating barrel (1) is fixed with a plurality of clamp rings (20), has seted up a plurality of tube holes on clamp ring (20), many heating pipe (2) wear to establish the inner wall round that the tube hole suspension set up in business turn over material passageway (10) along radial sliding, both ends face is opened around the semi-annular barrel and all is equipped with wiring groove (12) that have top cap (11), in the power connection end of heating pipe (2) penetrates wiring groove (12), monoblock be used for connecting conducting strip (13) of heating pipe (2) power cord is installed to wiring groove (12) inboard.

2. The new and repairable infrared electric heating coil as set forth in claim 1, wherein said blocking means comprises trapezoidal abutment surfaces (17) of the semi-annular cylinder whose abutment surfaces are arranged to be engaged with each other.

3. The retrofittable infrared electric heating coil as set forth in claim 1, wherein said blocking mechanism comprises a flexible material relatively conformed to the abutting surface of the semi-annular cylinder.

4. The new repairable infrared electric heating coil as claimed in claim 1, wherein the front and rear ends of the heating tube (2) are provided with caps for leading out the power supply line, the top opening of the wiring groove (12) is covered by the top cover (11) through bolts, and the inner bottom surface of the top cover (11) is pressed against the top end of the caps.

5. The new repairable infrared electric heating coil as claimed in claim 1, wherein the bottom of the wiring groove (12) is formed by an insulating fixing frame (18), the heating tube (2) is arranged on the insulating fixing frame (18) in a penetrating way, and the conductive strip (13) is arranged on the insulating fixing frame (18) at one side of the heating tube (2).

6. The novel repairable infrared electric heating ring according to claim 1, wherein the heating cylinder (1) is sequentially provided with a reflector (14), a heat-insulating layer (15) and a shell (16) from outside to inside, the shell (16) is fixed on the outside of the heat-insulating layer (15) through an isolation screw (5), a heat-insulating gap is reserved between the heat-insulating layer (15) and the shell (16), a penetrating seal ring (50) for directly connecting the isolation screw (5) and the shell (16) is sleeved on a penetrating opening of the isolation screw (5) and the shell (16), an outer end cover of the isolation screw (5) is provided with a protective cap (51) for heat insulation, and a plurality of reinforcing ribs are installed on the inner side wall of the shell (16).

7. The new repairable infrared electric heating coil as claimed in claim 1, characterized in that the conductive strips (13) are electrically connected to the power sockets (4) external to the heating cylinder (1) by means of tracks built into the insulating gaps, said semi-toroidal cylinders being provided with one power socket (4) each.