CN212407920U - High-temperature melt pipe with detachable return pipe - Google Patents

Abstract

The utility model discloses a can dismantle high temperature fuse-element of back flow, including the material pipe, the material pipe includes filter interface and main crowded owner interface, still establish the back flow on the material pipe including the cover, the back flow includes half pipe of first back flow and half pipe of second back flow, can dismantle the connection between half pipe of first back flow and the half pipe of second back flow, be connected with the heating hydraulic fluid port on the half pipe of first back flow, be connected with hot oil export on the half pipe of second back flow, be equipped with a plurality of connecting device between half pipe of first back flow and the half pipe of second back flow, connecting device is including fixing the first fixed block on half pipe of first back flow and fixing the second fixed block on half pipe of second back flow, it has connecting bolt to articulate on the first fixed block, threaded connection has stop nut on the connecting bolt, be equipped with the draw-. The utility model discloses can dismantle the connection between half pipe of first backward flow and the half pipe of second backward flow, can make things convenient for the installation and the dismantlement of back flow, can make things convenient for the clearance of back flow inside pipe wall simultaneously.

Description

High-temperature melt pipe with detachable return pipe

Technical Field

The utility model belongs to fuse-tube field, more specifically the high temperature fuse-tube that relates to a can dismantle back flow that says so.

Background

The existing high-temperature melt pipe comprises a material pipe, a backflow pipe is sleeved on the material pipe, the backflow pipe on the outer side of the material pipe forms a closed space, hot oil enters the backflow pipe after passing through a heating oil port, and flows out of a hot oil outlet after circularly flowing in the backflow pipe, so that the melt pipe is uniformly heated, and the problem that the melt is degraded due to overlong residence time in the pipeline is avoided; however, the installation process of fixing the return pipe on the material pipe is troublesome, the return pipe and the material pipe cannot be disassembled, the time is long, more impurities are adhered between the inner wall of the return pipe and the outer wall of the material pipe, the flowing speed of hot oil can be influenced, and the heating of the hot oil on a melt body can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a can dismantle high temperature fuse-element pipe of back flow can make things convenient for the installation and the dismantlement of back flow.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a can dismantle high temperature fuse-element pipe of back flow, includes the material pipe, and the material pipe includes filter interface and main extruder main interface, still establishes the back flow on the material pipe including the cover, the back flow includes half pipe of first back flow and half pipe of second back flow, can dismantle the connection between half pipe of first back flow and the half pipe of second back flow, be connected with the heating hydraulic fluid port on the half pipe of first back flow, be connected with hot oil outlet on the half pipe of second back flow.

Further, be equipped with a plurality of connecting device between half pipe of first backward flow and the half pipe of second backward flow, connecting device is including fixing the first fixed block on half pipe of first backward flow and fixing the second fixed block on half pipe of second backward flow, it has connecting bolt to articulate on the first fixed block, threaded connection has stop nut on the connecting bolt, be equipped with the draw-in groove on the second fixed block, stop nut fixes first fixed block and second fixed block together after connecting bolt passes the draw-in groove.

Furthermore, sealing devices are arranged between the two ends of the return pipe and the material pipe.

Further, sealing device is including fixing the solid fixed ring on the material pipe, gu be equipped with the sealed annular on the fixed ring, be equipped with the sealing ring on the sealed annular, the both ends of back flow are impressed the sealing ring respectively in the sealed annular.

Furthermore, a deformation groove is formed in the side wall of the sealing ring.

Further, be equipped with first inside seal groove and first outer seal groove on the lateral wall of first backward flow half pipe respectively, it has first inside seal strip to peg graft in the first inside seal groove, it has first outer seal strip to peg graft on the first outer seal groove, be equipped with the second inside seal groove that supplies first inside seal strip to peg graft on the second backward flow half pipe, still be equipped with the second outer seal groove that supplies first outer seal strip to peg graft on the second backward flow half pipe.

Further, the number of the sealing ring grooves is two.

To sum up, the utility model has the advantages that: 1. the first backflow half pipe and the second backflow half pipe are detachably connected, so that the backflow pipe can be conveniently mounted and dismounted, and the inner wall of the backflow pipe can be conveniently cleaned; 2. after the connecting bolt penetrates through the clamping groove, the first fixing block and the second fixing block are fixed together by the limiting nut, so that the first backflow half pipe and the second backflow half pipe are fixed together; 3. the sealing device can increase the sealing performance between the two ends of the return pipe and the material pipe; 4. the first outer sealing strip and the first inner sealing strip can increase the sealing effect between the joints of the first backflow half pipe and the second backflow half pipe.

Drawings

FIG. 1 is a three-dimensional structure diagram of a high-temperature melt pipe with a detachable return pipe according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at II;

FIG. 6 is an exploded view of a high temperature melt tube with a removable return tube;

fig. 7 is a partial enlarged view at III in fig. 6.

Reference numerals: 1. a first return half pipe; 2. a second return half pipe; 3. a return pipe; 4. heating the oil port; 5. a filter interface; 6. a main extruder main interface; 7. a hot oil outlet; 8. a first fixed block; 9. a second fixed block; 10. a card slot; 11. a limit nut; 12. a connecting bolt; 13. a first outer seal strip; 14. a material pipe; 15. a seal ring; 16. a deformation groove; 17. a fixing ring; 18. a first outer seal groove; 19. a first inner seal groove; 21. a first inner seal strip; 22. a second outer seal groove; 23. a second inner seal groove.

Detailed Description

An embodiment of a high temperature melt pipe of the present invention with a detachable return pipe is further described with reference to fig. 1 to 7.

A high-temperature melt pipe with a detachable return pipe comprises a material pipe 14, wherein the material pipe 14 comprises a filter interface 5 and a main extrusion machine interface 6, and further comprises a return pipe 3 sleeved on the material pipe 14, the return pipe 3 comprises a first return half pipe 1 and a second return half pipe 2, the first return half pipe 1 and the second return half pipe 2 are half of the whole return pipe 3, the first return half pipe 1 and the second return half pipe 2 can be spliced into the whole return pipe 3, the first return half pipe 1 and the second return half pipe 2 are detachably connected, a heating oil port 4 is connected to the first return half pipe 1, a hot oil outlet 7 is connected to the second return half pipe 2, hot oil enters the return pipe 3 from the heating oil port 4 and then flows out from the hot oil outlet 7; the high-temperature melt pipe can bear plastic melts such as PET, PP or PA, the heat-resisting temperature reaches 350 ℃, the service life is long, the uniform heating of the melt pipe can be ensured, and the degradation caused by the overlong retention time of the melt in the pipeline is avoided.

A detachable mode between the first backflow half pipe 1 and the second backflow half pipe 2 is arranged below, as shown in fig. 2, a plurality of connecting devices are arranged between the first backflow half pipe 1 and the second backflow half pipe 2, each connecting device comprises a first fixing block 8 fixed on the first backflow half pipe 1 and a second fixing block 9 fixed on the second backflow half pipe 2 and corresponding to the first fixing block 8, a connecting bolt 12 is hinged to the first fixing block 8, a limiting nut 11 is connected to the connecting bolt 12 in a threaded manner, a clamping groove 10 is arranged on the second fixing block 9, and the first fixing block 8 and the second fixing block 9 are fixed together by the limiting nut 11 after the connecting bolt 12 passes through the clamping groove 10, so that the first backflow half pipe 1 and the second backflow half pipe 2 are fixed together; when the first backflow half pipe 1 and the second backflow half pipe 2 need to be disassembled from each other, only the limiting nut 11 needs to be unscrewed, and then the connecting bolt 12 is rotated out of the clamping groove 10; as shown in fig. 1, the connecting means may be provided in four, two of which are provided on opposite sides of the upper end of the return pipe 3 and the other two of which are provided on opposite sides of the lower end of the return pipe 3.

In order to increase the sealing performance between the two ends of the return pipe 3 and the material pipe 14, as shown in fig. 5, sealing devices are respectively arranged between the two ends of the return pipe 3 and the material pipe 14, each sealing device comprises a fixing ring 17 fixed on the material pipe 14, two sealing ring grooves are arranged on the fixing ring 17, sealing rings 15 are arranged on the sealing ring grooves, the outer diameters of the sealing rings 15 are slightly larger than the outer diameter of the fixing ring 17, and the sealing rings 15 are respectively pressed into the sealing ring grooves by the two ends of the return pipe 3, so that the sealing performance between the two ends of the return pipe 3 and the material pipe.

As shown in fig. 1, the side wall of the sealing ring 15 is provided with a deformation groove 16, and the deformation groove 16 can increase the deformation capacity of the sealing ring 15.

In order to increase the sealing effect between the joints of the first half return pipe 1 and the second half return pipe 2, as shown in fig. 7, a first inner sealing groove 19 and a first outer sealing groove 18 are respectively arranged on the sidewall of the first half return pipe 1 facing the second half return pipe 2, a first inner sealing strip 21 is inserted in the first inner sealing groove 19, a first outer sealing strip 13 is inserted in the first outer sealing groove 18, a second inner sealing groove 23 for inserting the first inner sealing strip 21 is arranged on the second half return pipe 2, a second outer sealing groove 22 for inserting the first outer sealing strip 13 is further arranged on the second half return pipe 2, and the first outer sealing strip 13 and the first inner sealing strip 21 can increase the sealing effect between the joints of the first half return pipe 1 and the second half return pipe 2.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a can dismantle high temperature fuse-element pipe of back flow, includes the material pipe, and the material pipe includes filter interface and main extruder main interface, its characterized in that: the material pipe is characterized by further comprising a return pipe sleeved on the material pipe, wherein the return pipe comprises a first return half pipe and a second return half pipe, the first return half pipe and the second return half pipe are detachably connected, a heating oil port is connected to the first return half pipe, and a hot oil outlet is connected to the second return half pipe.

2. A high temperature melt pipe with a detachable return pipe according to claim 1, wherein: be equipped with a plurality of connecting device between half pipe of first backward flow and the half pipe of second backward flow, connecting device is including fixing the first fixed block on half pipe of first backward flow and fixing the second fixed block on half pipe of second backward flow, it has connecting bolt to articulate on the first fixed block, threaded connection has limit nut on the connecting bolt, be equipped with the draw-in groove on the second fixed block, limit nut fixes first fixed block and second fixed block together after connecting bolt passes the draw-in groove.

3. A high temperature melt pipe with a detachable return pipe according to claim 1 or 2, wherein: sealing devices are arranged between the two ends of the return pipe and the material pipe.

4. A high temperature melt pipe with a detachable return pipe according to claim 3, wherein: the sealing device comprises a fixing ring fixed on the material pipe, a sealing ring groove is formed in the fixing ring, a sealing ring is arranged on the sealing ring groove, and the sealing ring is pressed into the sealing ring groove at two ends of the return pipe respectively.

5. The high temperature melt pipe with the detachable return pipe as set forth in claim 4, wherein: and the side wall of the sealing ring is provided with a deformation groove.

6. A high temperature melt pipe with a detachable return pipe according to claim 1, wherein: the side wall of the first backflow half pipe is respectively provided with a first inner sealing groove and a first outer sealing groove, a first inner sealing strip is inserted in the first inner sealing groove, a first outer sealing strip is inserted in the first outer sealing groove, a second inner sealing groove for inserting the first inner sealing strip is arranged on the second backflow half pipe, and a second outer sealing groove for inserting the first outer sealing strip is further arranged on the second backflow half pipe.

7. The high temperature melt pipe with the detachable return pipe as set forth in claim 4, wherein: the number of the sealing ring grooves is two.

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