CN109262931B - High-pressure-resistant pipeline lining forming device and forming method thereof - Google Patents
High-pressure-resistant pipeline lining forming device and forming method thereof Download PDFInfo
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- CN109262931B CN109262931B CN201811037745.XA CN201811037745A CN109262931B CN 109262931 B CN109262931 B CN 109262931B CN 201811037745 A CN201811037745 A CN 201811037745A CN 109262931 B CN109262931 B CN 109262931B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a high-pressure-resistant pipeline lining forming device and a forming method, wherein the high-pressure-resistant pipeline lining forming device comprises a pipeline with flanges at two ends, an inner supporting pipe positioned in the pipeline, and a first cover body and a second cover body which are respectively connected with the flanges at two ends in a matched manner, one end of the inner supporting pipe is provided with a pressure injection hole for injecting a medium, a plurality of through holes are formed in the inner supporting pipe, the end surfaces of the first cover body and the second cover body, which are connected with the flanges, are respectively provided with a first cavity and a second cavity which are concave, a pre-pressing block which is formed by pre-pressing powder materials in a semi-forming manner is arranged in the first cavity and the second cavity, the pre-pressing block is attached to the end surface of the corresponding flange, a rubber bag is sleeved on the inner supporting pipe, a compression cavity for adding the powder materials is formed between the rubber bag and the pipeline, and two ends of the rubber bag are respectively folded inwards after the outer end surfaces of the pre-pressing block are respectively extended outwards from the side walls of the inner supporting pipe, and the ports are attached between the inner supporting pipe and the rubber bag, so that an annular rubber ring is formed.
Description
Technical Field
The invention relates to a high-pressure-resistant pipeline lining forming device and a forming method thereof.
Background
The lining of the pipeline can meet the requirements of the pipeline on special performance, in the prior art, an inner supporting pipe is arranged in the pipeline, a rubber bag is sleeved on the inner supporting pipe, a sealing cover is arranged on a flange, the sealing cover is fixed on the flange through bolts, a plurality of through holes are formed in the inner supporting pipe, a fluid medium is further injected into the inner supporting pipe through injecting the powder material between the rubber bag and the inner wall of the pipeline, the inner supporting pipe is pressurized, the fluid medium is extruded through high pressure, and flows out of the extrusion rubber bag through the through holes in the inner supporting pipe, so that the rubber bag extrudes powder to form the lining.
In the prior art, the pressure of injection into the pipeline lining during the processing process is proportional to the quality of the formed lining, and the larger the pressure is, the better the quality of the lining is. The general processing mode is that the opening of the rubber bag faces the sealing cover, the two ends of the rubber bag are positioned between the flange and the sealing cover, and the two ends of the rubber bag are pre-tightened and fixed by bolts to realize forced sealing. When the pressure reaches a critical value, the tightness is invalid, the medium leaks, and if the pressure is continuously pressurized, the pressure cannot be increased any more.
Disclosure of Invention
Based on the above problems, the present invention aims to provide a lining forming device and a lining forming method which are suitable for large-diameter pipelines, high in lining quality, high in production efficiency, convenient, quick and high-pressure resistant.
Aiming at the problems, the following technical scheme is provided: the utility model provides a high pressure resistant pipeline lining forming device, includes the pipeline that both ends are equipped with the flange, is located the interior pipe of pipeline and respectively with both ends flange cooperation first lid and the second lid of being connected, interior pipe one end is equipped with the injection hole that is used for injecting the medium, be equipped with a plurality of through-hole on the interior pipe of propping up, be provided with indent first cavity and second cavity on first lid and second lid and flange connection's the terminal surface respectively, be equipped with the pre-compaction piece that powder material compresses tightly in advance and be the half shaping in first cavity and the second cavity, the pre-compaction piece is laminated with the terminal surface that corresponds the flange mutually, interior pipe cover is equipped with the rubber bag, form the compression chamber that is used for adding powder material between rubber bag and the pipeline, the rubber bag both ends are rolled over and are laminated in interior pipe and the rubber bag respectively to the outside by interior pipe lateral wall after, form annular rubber ring including being located first rubber ring and the second rubber ring that is located first cavity.
In the structure, the two ends of the rubber bag are folded and then are attached between the inner supporting tube and the rubber bag, so that a medium cavity which is used for injecting a medium and has high tightness is formed between the rubber bag and the inner supporting tube, when the rubber ring is pressed, the rubber ring is expanded, the medium extrudes the rubber ring port towards the direction of the inner supporting tube, when the pressure is larger, the rubber ring port is attached to the side wall of the inner supporting tube more tightly, the tightness is stronger, and therefore medium outflow is avoided, and the effect of self-tightening sealing is realized. The whole device can reach higher pressure in the processing process, so that the molded lining has the advantages of high density, high strength, long service life and the like, and is suitable for further setting the invention for processing large-sized pipelines with larger diameters.
The invention further provides that a lip with a toothed structure on the surface is arranged on one side of the rubber ring opposite to the inner supporting tube, and the lip is propped against the side wall of the inner supporting tube.
In the structure, the sealing effect is better by arranging the lips with the tooth-shaped structures, when the rubber ring is inflated by medium, the lips are pressed in the direction of the inner supporting tube, and when the pressure is larger, the lips are tightly attached to the inner supporting tube, so that the sealing performance of the rubber bag is stronger.
The invention further provides a protective cover, the protective cover is provided with a cavity with one end open, the cavity is sleeved at one end of the inner supporting pipe and is matched with the inner diameter of the pipeline when the protective cover is used, the rubber ring can be contained in the protective cover, the outer side wall of the protective cover is concaved inwards in the length direction to form a plurality of gaps, and a powder adding channel for pouring powder materials is formed between the gaps and the inner wall of the pipeline.
In the above-mentioned structure, the cavity cover on the protection lid is established in the one end of interior pipe, and the visor can prevent when passing the pipeline with interior pipe, and the rubber ring touches the pipeline inner wall and leads to the rubber ring to appear wearing and tearing, when putting into the pipeline with interior pipe, the visor contacts with interior pipe inner wall and realizes the central location to interior pipe, has guaranteed the compression chamber area equality that forms between the inner wall of interior pipe and pipeline, has guaranteed pipeline lining processing's quality, forms between breach and the pipeline inner wall and adds the powder passageway, adds the powder passageway and is used for injecting into powder material to the compression intracavity.
The invention is further arranged that one end of the inner supporting tube is provided with a connecting part, and the connecting part penetrates through the second cover body and is connected with the second cover body through a nut.
The invention is further arranged that one end of the inner supporting tube is provided with a detachable blocking ring, and the blocking ring is in threaded connection with the inner supporting tube.
In the structure, after the pressing is finished, the clearance left between the outer diameter of the inner supporting tube and the lining is smaller, when the pipeline is pulled out, the rubber ring at one end passes through the inner supporting tube and the lining, and can be easily clamped between the inner supporting tube and the lining.
The invention is further arranged that the two ends of the inner supporting tube are sleeved with rubber pads, and the rubber pads comprise a first rubber pad and a second rubber pad which are respectively positioned at the bottom of the first cavity and the bottom of the second cavity, and a third rubber pad and a fourth rubber pad which are positioned between the first rubber ring, the second rubber ring and corresponding pre-pressing blocks.
In the structure, the thickness of the rubber ring can be thinned after the rubber ring is expanded, the hardness of the pre-pressed block is higher after the pre-pressed block is formed, the surface of the pre-pressed block is provided with hard blocks, the rubber ring is easy to puncture, the medium is led to leak, rubber pads are arranged on two sides of the rubber ring to protect the rubber ring, and the end face of the pre-pressed block is enabled to be flatter by the rubber pads through the extrusion of the rubber pads.
The invention is further arranged that the upper cover cavity and the lower cover cavity are arranged in a truncated cone shape with a small bottom opening.
In the structure, the upper cover cavity and the lower cover cavity are arranged in the shape of the circular table with the small bottom opening, so that the upper cover and the lower cover can be conveniently detached.
According to the above problems, the present invention provides a method for processing a lining of a pipeline, comprising the steps of:
(1) Preparation: sleeving a rubber bag on the inner support pipe, respectively extending the two ends of the rubber bag outwards from the side wall of the inner support pipe, inwards turning over, attaching the port between the inner support pipe and the rubber bag to form a first rubber ring and a second rubber ring respectively, sleeving the second rubber ring and a fourth rubber ring on the inner support pipe respectively, enabling the second rubber ring to be positioned between the second rubber ring and the fourth rubber ring, enabling the connecting part to pass through the second cover body, sleeving a nut at the end part of the connecting part, and connecting the inner support pipe with the second cover body;
(2) And (3) loading a pre-pressing block: placing a pre-pressing block in the second cavity and placing the pre-pressing block on a fourth rubber pad;
(3) Sleeve pipe: a protective cover is sleeved at one end of the inner supporting tube far away from the connecting part, the first rubber ring is completely plugged into the protective cover, a pipeline is sleeved at one end of the inner supporting tube sleeved with the protective cover until the second cover body abuts against a flange corresponding to the pipeline, and then the pipeline is connected with the second cover body through bolts;
(4) Pouring powder: placing the assembled device vertically with the second cover body downward, gradually pouring powder material into the compression cavity through the powder adding channel until the height of the powder material is slightly lower than the flange end face at the top of the pipeline, then removing the protective cover, adding the powder material until the height of the powder material is slightly higher than the flange end face at the top of the pipeline, and then placing a pre-pressing block on the upper end face of the flange at the top of the pipeline;
(5) And (3) mounting a first cover body: the top of the inner supporting pipe is respectively sleeved with a first rubber pad and a third rubber pad, a first rubber ring is positioned between the first rubber pad and the third rubber pad, then a blocking ring is arranged at the top of the inner supporting pipe, a first cover body is covered, the first rubber pad is positioned at the bottom of the first cavity, and then the first cover body is connected with a pipeline through a bolt;
(6) Pressing: introducing a medium into the injection hole, gradually increasing the pressure until reaching a preset pressure, and keeping the pressure for a preset time;
(7) Pressure relief: discharging the injected medium until the pressure is exhausted;
(8) And (5) cover removal: firstly, detaching a bolt between the first cover body and the pipeline, detaching the first cover body, detaching the blocking ring, detaching the first rubber pad and the third rubber pad, and detaching the bolt between the second cover body and the pipeline;
(9) And (3) an outlet pipe: the pipe is pulled out from one end of the inner supporting pipe, which is provided with the blocking ring.
The invention has the beneficial effects that: through turn over the rubber bag both ends and laminate between interior pipe and rubber bag after turning over to make between rubber bag and the interior pipe a medium cavity that is used for injecting into the medium and the leakproofness is strong, when pressing, the rubber ring inflation, the medium is with the inwards extrusion of pipe direction of propping up of rubber ring port, when the pressure is bigger, the rubber ring port is laminated with interior pipe lateral wall more tightly, and the leakproofness is just stronger more, thereby avoids the medium to flow out, has realized the effect of self-tightening seal. The whole device can reach higher pressure in the processing process, so that the molded lining has the advantages of high density, high strength, long service life and the like. The device is suitable for processing large pipelines with larger diameters. Rubber pads are arranged on two sides of the rubber ring to protect the rubber ring, and the rubber pads extrude the pre-pressing block to enable the end face of the pre-pressing block to be smoother. The center positioning of the inner supporting tube is realized by arranging the protective cover to be in contact with the inner wall of the inner supporting tube, so that the equality of the distance between the inner supporting tube and the compression cavity formed between the inner supporting tube and the inner wall of the pipeline is ensured, and the processing quality of the lining of the pipeline is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a high pressure resistant liner forming apparatus according to the present invention;
FIG. 2 is a schematic illustration of a "pre-compression block" in the method of forming a high pressure resistant pipe liner of the present invention;
FIG. 3 is a schematic illustration of a "sleeve" in the method of forming a high pressure resistant pipe liner of the present invention;
FIG. 4 is a schematic illustration of "powder pouring" in the method of forming a high pressure resistant pipe liner of the present invention;
FIG. 5 is a schematic illustration of a "first cover" in the method of forming a high pressure resistant pipe liner of the present invention;
FIG. 6 is a schematic illustration of a "press" in the process of forming a high pressure resistant pipe liner of the present invention;
FIG. 7 is a schematic illustration of "pressure relief" in the process of forming a high pressure resistant pipe liner of the present invention;
FIG. 8 is a schematic illustration of "cap removal" in the method of forming a high pressure resistant pipe lining of the present invention;
FIG. 9 is a schematic illustration of a "pipe" in the method of forming a high pressure resistant pipe liner of the present invention;
fig. 10 is a schematic cross-sectional view of a lip according to the present invention;
FIG. 11 is a schematic top view of the protective cover of the present invention.
The meaning of the reference numerals in the figures: 1-a pipeline; 11-flanges; 2-inner supporting tube; 21-rubber bags; 211-a first rubber ring; 212-a first rubber ring; 22-through holes; 23-connecting part; 24-a blocking ring; 3-pre-pressing blocks; 31-a first cover; 311-first cavity; 32-a second cover; 321-a second cavity; 41-a first rubber pad; 42-a second rubber pad; 43-a third rubber pad; 44-fourth rubber pad; 5-a compression chamber; 6-injection holes; 7-a nut; 8-lips; 9-a protective cover; 91-a powder adding channel.
Detailed Description
The following describes in further detail the specific embodiments of the invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The high-pressure-resistant pipeline lining forming device shown in fig. 1 comprises a pipeline 1 with flanges at two ends, an inner supporting pipe 2 positioned in the pipeline 1, and a first cover body 31 and a second cover body 32 respectively connected with flanges 11 at two ends, wherein one end of the inner supporting pipe 2 is provided with a pressure injection hole 6 for injecting a medium, a plurality of through holes 22 are formed in the inner supporting pipe 2, a first cavity 311 and a second cavity 321 which are concave are respectively arranged on the end surfaces of the first cover body 31 and the second cover body 32 connected with the flanges 11, a pre-pressing block 3 which is formed by compressing powder materials in advance is arranged in the first cavity 311 and the second cavity 321, the pre-pressing block 3 is attached to the end surfaces of the corresponding flanges 11, a rubber bag 21 is sleeved on the inner supporting pipe 2, two ends of the rubber bag 21 respectively extend outwards from the side wall of the inner supporting pipe 2, a port is attached to the outer side of the inner supporting pipe 2, the port is located between the first cavity 311 and the second cavity 212, and the second cavity 212 is located between the first cavity 212 and the second cavity 212.
In the above-mentioned structure, through turn over the back with rubber bag 21 both ends and laminate between interior pipe 2 and rubber bag 21 to make between rubber bag 21 and the interior pipe 2 form a medium cavity that is used for injecting the medium and the leakproofness is strong, when pressing, rubber ring 21 inflation, the medium extrudees the rubber ring 21 port to interior pipe 2 direction, when the pressure is bigger, rubber ring 21 port and interior pipe 2 lateral wall laminating are tighter more, and the leakproofness is just stronger more, thereby avoid the medium to flow, realized the effect of self-tightening seal. The whole device can reach higher pressure in the processing process, so that the molded lining has the advantages of high density, high strength, long service life and the like, and is suitable for processing large pipelines with larger diameters.
In this embodiment, the port of the rubber ring is bonded to the side wall of the inner support tube 2.
In this embodiment, a lip 7 with a toothed structure is disposed on the surface of the rubber ring opposite to the inner supporting tube 2, and the lip 7 abuts against the side wall of the inner supporting tube 2.
In the above structure, through setting up tooth-like structure's lip 8, have better sealed effect, after the rubber ring lets in the medium inflation, lip 9 receives the extruded power in interior pipe support direction, when the pressure is big more, lip 8 and interior pipe support 2 laminating more tightly to make the leakproofness of rubber bag 21 stronger.
In this embodiment, the powder filling device further comprises a protective cover 9, the protective cover 9 is provided with a cavity with one end open, the cavity is sleeved at one end of the inner supporting tube 2 and is matched with the inner diameter of the pipeline 1 when in use, the rubber ring can be contained in the protective cover 9, the outer side wall of the protective cover 9 is concaved inwards in the length direction to form a plurality of notches, and a powder filling channel 91 for filling powder materials is formed between the notches and the inner wall of the pipeline 1.
In the above-mentioned structure, the cavity cover on the visor 9 is established in the one end of interior pipe support 2, visor 9 can prevent when passing interior pipe support 2 pipeline 1, the rubber ring touches pipeline 1 inner wall and leads to the rubber ring to appear wearing and tearing, when putting interior pipe support 2 into pipeline 1, visor 9 contacts with interior pipe support 2 inner wall and realizes the center location to interior pipe support 2, the compression cavity area that forms between having guaranteed interior pipe support 2 and pipeline 1 inner wall is equal, the quality of pipeline 1 lining processing has been guaranteed, form between breach and the pipeline inner wall and add powder passageway 91, add powder passageway 91 is used for the injection powder material to the compression intracavity.
In this embodiment, a connecting portion 23 is disposed at one end of the inner supporting tube 2, and the connecting portion 23 passes through the second cover 32 and connects the inner supporting tube 2 with the second cover 32 through the nut 7.
In this embodiment, a detachable blocking ring 24 is disposed at one end of the inner supporting tube 2, and the blocking ring 24 is in threaded connection with the inner supporting tube 2.
In the structure, after the pressing is finished, the clearance left between the outer diameter of the inner supporting tube 2 and the lining is smaller, when the pipeline 1 is pulled out, the rubber ring at one end passes through the inner supporting tube 2 and the lining, and can be easily clamped between the inner supporting tube 2 and the lining, by arranging the blocking ring 24, the cross-sectional area of the end part of the inner supporting tube 2 is reduced after the blocking ring 24 is detached, and a certain space is reserved for the rubber ring, so that the rubber ring is easier to take out, and the disassembly of the pipeline 2 is facilitated.
In this embodiment, rubber pads are sleeved at two ends of the inner supporting tube 2, and each rubber pad includes a first rubber pad 41 and a second rubber pad 42 respectively located at the bottom of the first cavity 311 and the bottom of the second cavity 321, and a third rubber pad 43 and a fourth rubber pad 44 located between the first rubber ring 211, the second rubber ring 212 and the corresponding pre-pressing block 3.
In the above structure, the rubber ring 21 can be thinned after expansion, the hardness is higher after the pre-compaction piece is formed, the surface is provided with hard blocks, the rubber ring is easy to puncture, the medium is led to leak, the rubber ring is protected by arranging rubber pads on two sides of the rubber ring, and the pre-compaction piece 3 is extruded by the rubber pads, so that the end face of the pre-compaction piece 3 is smoother.
In this embodiment, the upper cover cavity 311 and the lower cover cavity 321 are provided in a shape of a truncated cone with a small bottom opening.
In the above structure, the upper cover cavity 311 and the lower cover cavity 321 are formed in the shape of a truncated cone with a small bottom opening, so that the upper cover 31 and the lower cover 32 can be conveniently detached.
As shown in fig. 2-8, the invention provides a method for processing a high-pressure-resistant pipeline lining, which comprises the following steps:
preparation: the inner supporting tube 2 is sleeved with the rubber bag 21, two ends of the rubber bag 21 are respectively extended outwards from the side wall of the inner supporting tube 2, then the rubber bag is turned inwards, a port is attached between the inner supporting tube 2 and the rubber bag 21 to form a first rubber ring 211 and a second rubber ring 212 respectively, the inner supporting tube 2 is respectively sleeved with a second rubber pad 42 and a fourth rubber pad 44, the second rubber ring 212 is positioned between the second rubber pad 42 and the fourth rubber pad 44, the inner supporting tube 2 is propped against the bottom 321 of the second cavity, the connecting part 23 penetrates through the second cover body 32, and a nut 7 is sleeved at the end part of the connecting part 23 to realize connection between the inner supporting tube 2 and the second cover body 32;
and (3) loading a pre-pressing block: placing a pre-press block in the second cavity 321 and on a fourth rubber pad 44;
sleeve pipe: the protective cover 9 is sleeved at one end of the inner supporting tube 2 far away from the connecting part 23, the first rubber ring 211 is completely plugged into the protective cover 9, the pipeline 1 is sleeved at one end of the inner supporting tube 2 sleeved with the protective cover 9 until the second cover body 32 abuts against the flange 11 corresponding to the pipeline 1, and then the pipeline 1 is connected with the second cover body 32 through bolts;
pouring powder: placing the assembled device vertically with the second cover body 32 facing downwards, gradually pouring powder material into the compression cavity 5 through the powder adding channel 91 until the powder material is slightly lower than the top flange 11 end face of the pipeline 1, then removing the protective cover 9, adding the powder material until the powder material is slightly higher than the top flange 11 end face of the pipeline 1, and then placing the pre-pressing block 3 on the upper end face of the top flange 11 of the pipeline 1;
and (3) mounting a first cover body: the top of the inner supporting tube 2 is respectively sleeved with a first rubber gasket 41 and a third rubber gasket 43, a first rubber ring 211 is positioned between the first rubber gasket 41 and the third rubber gasket 43, then a baffle ring 24 is arranged on the top of the inner supporting tube 2, a first cover body 31 is covered, the first rubber gasket 41 is positioned at the bottom 311 of the first cavity, and then the first cover body 31 is connected with the pipeline 1 through bolts;
pressing: introducing a medium into the injection hole 6, gradually increasing the pressure until reaching a preset pressure and keeping the pressure for a preset time;
pressure relief: discharging the injected medium until the pressure is exhausted and the rubber bag 11 is contracted to be in a state of being attached to the side wall of the inner supporting tube;
and (5) cover removal: firstly, removing bolts between the first cover body 31 and the pipeline 1, then removing the first cover body 31, then removing the first rubber pad 41 and the third rubber pad 43, then removing the blocking ring 24, and then removing bolts between the second cover body 32 and the pipeline 1; and (3) an outlet pipe: the pipe 1 is pulled off from the end of the inner stay tube 2 where the blocking ring 24 is provided.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
1. The utility model provides a high pressure resistant pipeline lining forming device, includes the pipeline that both ends are equipped with the flange, is located the interior pipe of pipeline and respectively with both ends flange cooperation first lid and the second lid that are connected, interior pipe one end is equipped with the injection hole that is used for injecting the medium, be equipped with a plurality of through-hole on the interior pipe that props, its characterized in that, be provided with indent first cavity and second cavity on first lid and the terminal surface of flange junction respectively, be equipped with the pre-compaction piece that powder material compresses tightly in advance and be the half shaping form in first cavity and the second cavity, the pre-compaction piece is laminated with the terminal surface of corresponding flange mutually, interior pipe cover is equipped with the rubber bag, form the compression chamber that is used for adding powder material between rubber bag and the pipeline, the outer terminal surface of rubber bag both ends are respectively followed the interior pipe lateral wall of pre-compaction piece and are rolled over inwards and the port is laminated in interior pipe and rubber bag between, form annular rubber ring, the rubber ring is including being located first ring and the first ring that is located first cavity in first cavity.
2. The apparatus of claim 1, wherein the ports of the rubber ring are bonded to the inner support tube side wall.
3. The high pressure resistant pipe lining forming device according to claim 1, wherein a lip with a toothed structure on the surface is arranged on the side of the rubber ring opposite to the inner supporting pipe, and the lip abuts against the side wall of the inner supporting pipe.
4. The high-pressure-resistant pipeline lining forming device according to claim 1, further comprising a protective cover, wherein the protective cover is provided with a cavity with one end open, the cavity is sleeved at one end of the inner supporting pipe and is matched with the inner diameter of the pipeline in use, the rubber ring can be accommodated in the protective cover, the outer side wall of the protective cover is concaved inwards in the length direction to form a plurality of gaps, and a powder adding channel for pouring powder materials is formed between the gaps and the inner wall of the pipeline.
5. The high pressure resistant pipe lining forming device according to claim 1, wherein one end of the inner supporting pipe is provided with a connecting portion, and the connecting portion penetrates through the second cover body and is connected with the second cover body through a nut.
6. The high pressure resistant pipe lining forming device of claim 1, wherein one end of the inner support pipe is provided with a detachable blocking ring, and the blocking ring is in threaded connection with the inner support pipe.
7. The high-pressure-resistant pipeline lining forming device according to claim 1, wherein rubber pads are sleeved at two ends of the inner supporting pipe, and each rubber pad comprises a first rubber pad and a second rubber pad which are respectively positioned at the bottom of the first cavity and the bottom of the second cavity, and a third rubber pad and a fourth rubber pad which are positioned between the first rubber ring, the second rubber ring and the corresponding pre-pressing block.
8. The high pressure resistant pipe lining forming device of claim 1, wherein the first cavity and the second cavity are arranged in a shape of a truncated cone with a small bottom opening.
9. A method of forming a high pressure resistant pipe lining forming apparatus as claimed in any one of claims 1 to 8, comprising the steps of:
1) Preparation: sleeving a rubber bag on the inner support pipe, respectively extending the two ends of the rubber bag outwards from the side wall of the inner support pipe, inwards turning over, attaching the port between the inner support pipe and the rubber bag to form a first rubber ring and a second rubber ring respectively, sleeving the second rubber ring and a fourth rubber ring on the inner support pipe respectively, enabling the second rubber ring to be positioned between the second rubber ring and the fourth rubber ring, enabling the connecting part to pass through the second cover body, sleeving a nut at the end part of the connecting part, and connecting the inner support pipe with the second cover body;
2) And (3) loading a pre-pressing block: placing a pre-pressing block in the second cavity and placing the pre-pressing block on a fourth rubber pad;
3) Sleeve pipe: a protective cover is sleeved at one end of the inner supporting tube far away from the connecting part, the first rubber ring is completely plugged into the protective cover, a pipeline is sleeved at one end of the inner supporting tube sleeved with the protective cover until the second cover body abuts against a flange corresponding to the pipeline, and then the pipeline is connected with the second cover body through bolts;
4) Pouring powder: placing the assembled device in the above step vertically with the second cover body downward, gradually pouring powder material into the compression cavity through the powder adding channel until the height of the powder material is slightly lower than the flange end face at the top of the pipeline, then removing the protective cover, adding the powder material until the height of the powder material is slightly higher than the flange end face at the top of the pipeline, and then placing a pre-pressing block on the upper end face of the flange at the top of the pipeline;
5) And (3) mounting a first cover body: the top of the inner supporting pipe is respectively sleeved with a first rubber pad and a third rubber pad, a first rubber ring is positioned between the first rubber pad and the third rubber pad, then a blocking ring is arranged at the top of the inner supporting pipe, a first cover body is covered, the first rubber pad is positioned at the bottom of the first cavity, and then the first cover body is connected with a pipeline through a bolt;
6) Pressing: introducing a medium into the injection hole, gradually increasing the pressure until reaching a preset pressure, and keeping the pressure for a preset time;
7) Pressure relief: discharging the injected medium until the pressure is exhausted;
8) And (5) cover removal: firstly, detaching a bolt between the first cover body and the pipeline, detaching the first cover body, detaching the blocking ring, detaching the first rubber pad and the third rubber pad, and detaching the bolt between the second cover body and the pipeline;
9) And (3) an outlet pipe: the pipe is pulled out from one end of the inner supporting pipe, which is provided with the blocking ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037745.XA CN109262931B (en) | 2018-09-06 | 2018-09-06 | High-pressure-resistant pipeline lining forming device and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037745.XA CN109262931B (en) | 2018-09-06 | 2018-09-06 | High-pressure-resistant pipeline lining forming device and forming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109262931A CN109262931A (en) | 2019-01-25 |
| CN109262931B true CN109262931B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811037745.XA Active CN109262931B (en) | 2018-09-06 | 2018-09-06 | High-pressure-resistant pipeline lining forming device and forming method thereof |
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| CN (1) | CN109262931B (en) |
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2018
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| US3207644A (en) * | 1959-07-20 | 1965-09-21 | Garlock Inc | Method of making a fluorocarbon resin jacketed gasket |
| US3577842A (en) * | 1968-07-04 | 1971-05-11 | Matsushita Electric Ind Co Ltd | Apparatus for compression molding a powder within a container |
| DE2003689A1 (en) * | 1969-01-31 | 1970-08-13 | Pierre Viennot | Articles based on polytetrafluoroethylene and process for their manufacture |
| GB1286599A (en) * | 1969-02-13 | 1972-08-23 | Thomson Csf | Method of manufacturing hollow superconducting bodies |
| US3698422A (en) * | 1970-05-06 | 1972-10-17 | Union Pump Co | Lined plug valve |
| GB1328688A (en) * | 1970-10-27 | 1973-08-30 | Robinson Clay Product Co | Apparatus for pressing of clay pipe using an elastomeric mandrel |
| FR2137702A1 (en) * | 1971-05-11 | 1972-12-29 | Ici Ltd | |
| GB1498482A (en) * | 1974-08-08 | 1978-01-18 | Maximilianshuette Eisenwerk | Metal refining vessels |
| CA1084224A (en) * | 1979-08-21 | 1980-08-26 | Perry N. Brittain | Process for lining high pressure pipeline |
| DE2935514A1 (en) * | 1979-09-03 | 1981-04-09 | Ernst Dr. 6250 Limburg Schnabel | Lining metal T=piece tube with PTFE - main and branch liners are end flanged, inserted and welded together |
| EP0066833A1 (en) * | 1981-06-02 | 1982-12-15 | Nippon Steel Corporation | Powder conveying pipe |
| JPS62167027A (en) * | 1986-01-17 | 1987-07-23 | Sekisui Chem Co Ltd | Lining of flanged tube |
| JPH01215830A (en) * | 1988-02-23 | 1989-08-29 | Honda Motor Co Ltd | Production of pad for disk brake |
| JPH0551608A (en) * | 1991-08-23 | 1993-03-02 | Kobe Steel Ltd | Production of metallic capsule for producing composite tube |
| CN2116575U (en) * | 1992-03-04 | 1992-09-23 | 何报翔 | Steel pipe rubber line capsule forming method and device |
| JPH07156270A (en) * | 1993-12-10 | 1995-06-20 | Nippon Valqua Ind Ltd | Manufacture of fluororesin coating |
| WO1995019853A1 (en) * | 1994-01-25 | 1995-07-27 | Queensland Heavy Duty Coating Pty. Ltd. | Applying coatings to tubing interiors |
| WO1998039592A2 (en) * | 1997-03-03 | 1998-09-11 | Oil States Industries (Uk) Limited | Apparatus and methods for lining of pipes |
| WO2008069562A1 (en) * | 2006-12-05 | 2008-06-12 | Linestar Co., Ltd. | Apparatus and method for manufacturing composition pipe |
| EP2423532A1 (en) * | 2010-08-31 | 2012-02-29 | BPW Bergische Achsen KG | Steel rubber sleeve |
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| CN102976322A (en) * | 2012-12-13 | 2013-03-20 | 卞奎友 | Energy-saving internal heating rotary furnace for producing wooden activated carbon by adopting chemical method and manufacture method |
| CN103112195A (en) * | 2013-01-31 | 2013-05-22 | 成都易态科技有限公司 | Isostatic pressing filter element molding die and end sealing elements thereof |
| CN203863897U (en) * | 2014-05-06 | 2014-10-08 | 浙江菲达通球环保管业有限公司 | Positioning device for improving mould pressing concentricity of steel lined polytetrafluoroethylene pipe and pipe fittings |
| EP2987594A1 (en) * | 2014-08-14 | 2016-02-24 | WISAG Produktionsservice GmbH | Separating device for a composite workpiece and method for separation of the composite workpiece with the separating device |
| CN204805753U (en) * | 2015-05-05 | 2015-11-25 | 上海恒盼流体设备有限公司 | Material pipe is thrown to outer lining in steel lining polytetrafluoroethylene compression molding |
| CN205991248U (en) * | 2016-07-05 | 2017-03-01 | 温州中普科技咨询有限公司 | A kind of pushing serves as a contrast four fluorine tube |
| CN106704727A (en) * | 2017-01-22 | 2017-05-24 | 江苏金晟元特种阀门股份有限公司 | Special fluoroplastic full-lining fastening straight pipeline for chlor-alkali chemical enterprises |
| CN107355602A (en) * | 2017-08-09 | 2017-11-17 | 镇江春环密封件集团有限公司 | A kind of steel lining polyfluortetraethylecomposite composite pipe structure |
| CN208714310U (en) * | 2018-09-06 | 2019-04-09 | 陈烈 | A kind of high voltage bearing lining of pipe line molding machine |
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| CN109262931A (en) | 2019-01-25 |
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