CN107364051B - Polyethylene pipeline welding heating equipment and heating method thereof - Google Patents
Polyethylene pipeline welding heating equipment and heating method thereof Download PDFInfo
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- CN107364051B CN107364051B CN201710825106.9A CN201710825106A CN107364051B CN 107364051 B CN107364051 B CN 107364051B CN 201710825106 A CN201710825106 A CN 201710825106A CN 107364051 B CN107364051 B CN 107364051B
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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Abstract
The invention discloses polyethylene pipeline fusion heating equipment and a heating method thereof, which relate to the field of natural gas PE pipeline outdoor welding equipment, wherein an inner barrel is positioned inside an outer barrel, an outer heating cylinder is covered on the inner surface of the outer barrel, an inner heating cylinder is covered on the outer surface of the inner barrel, a guide ring is arranged at the inner edge of the outer barrel, a heated pipeline enters between the outer heating cylinder and the inner heating cylinder along the guide ring, a positioning ring is arranged on the right end face between the outer heating cylinder and the inner heating cylinder, the positioning ring limits the position of a heated pipe, an inner wall and outer wall fixing sealing ring is arranged on the left end face of the inner barrel, an explosion-proof quick connector I is arranged on the right end face of the outer barrel, the explosion-proof quick connector I is connected with an outer heating cylinder connecting end, an explosion-proof quick connector II is connected with the inner heating cylinder connecting end, and the invention assists in heating and preheating the pipeline, when the temperature of the pipeline reaches more than 0 ℃, and then hot fusion butt joint and electric fusion welding are carried out, so that the brittle fracture length of the electric fusion pipe fitting can be effectively reduced, and the construction engineering quality of the gas PE pipeline can be improved.
Description
Technical Field
The invention belongs to the field of outdoor welding equipment of natural gas PE pipelines, and particularly relates to polyethylene pipeline welding heating equipment and a heating method thereof.
Background
The ambient temperature for hot melt or electrofusion of the pipe is preferably in the range of-5 to 45 ℃ according to the specification of polyethylene gas pipeline engineering, CJJ63-2008, item 5.1.5. The PE pipeline in northern areas has the main problems that the outdoor environment temperature and the base metal temperature are too low, the average outdoor temperature in winter reaches-15 ℃, and the outdoor pipe temperature can reach-25 ℃. Outdoor pipelines are arranged outdoors in autumn and winter, frost is easily formed on the surfaces of the pipelines, and the welding quality is affected by water vapor during welding. The gas pipe network is unavoidable in emergency and leakage engineering in winter, and the PE pipe welding winter construction is increased along with the increase of the coal-to-gas engineering, so that the PE pipe welding quality under the low temperature condition is ensured, and the PE pipe instant heating, surface dehumidifying and heat preserving equipment for outdoor operation in winter is produced according to the PE pipe specification.
Condition characteristics and defects of similar products in the current market:
(1) And the pipe is preheated by electric warm air. Disadvantages: because the polyethylene material has poor heat conductivity and low heat transfer speed, the temperature of the base metal is uneven by adopting a heat convection heating mode, the heating effect is poor, the heating time is long, and meanwhile, potential safety hazards exist.
(2) And adjusting a heating control program of the heating cylinder of the full-automatic welding machine, and increasing the temperature of the heating cylinder to prolong the heating time. Disadvantages: the automatic welding procedure must be adjusted according to the outdoor temperature of the current day, the operation is complex, and if the heating time of the heating cylinder is too long, the weld can be carbonized.
Therefore, there is an urgent need for a polyethylene pipe welding heating apparatus that can avoid the drawbacks of the same type of products.
Disclosure of Invention
The invention provides a polyethylene pipeline welding heating device and a heating method thereof, and aims to overcome the defects, so that the polyethylene pipeline welding heating device is simple in structure, can assist in heating a preheated pipeline, and can effectively reduce the brittle fracture length of an electric melting pipe fitting, is beneficial to welding quality and improves the construction engineering quality of a gas PE pipeline when the temperature of the pipeline is more than 0 ℃ and less than 60 ℃ and then carries out hot melting butt joint and electric welding.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a polyethylene pipeline butt fusion firing equipment, includes outer bucket, interior bucket, by heating pipe and heating cylinder, the heating cylinder includes outer heating cylinder and interior heating cylinder, interior bucket is located inside the outer bucket, outer bucket internal surface covers there is outer heating cylinder, the surface of interior bucket covers there is interior heating cylinder, outer bucket inward flange is equipped with the guide ring, by the heating pipe along the guide ring get into between outer heating cylinder and the interior heating cylinder, right-hand member face is equipped with the holding ring between outer heating cylinder and the interior heating cylinder, the position of heating pipe is restricted to the holding ring, interior bucket left end face is equipped with interior outer wall fixed seal ring, outer bucket right-hand member face is equipped with explosion-proof quick-operation joint one, and explosion-proof quick-operation joint one is connected with outer heating cylinder terminal, interior bucket right-hand member face is equipped with explosion-operation quick-operation joint two, and explosion-operation quick-operation joint two is connected with interior heating cylinder terminal.
Preferably, the inner surface of the outer barrel and the outer surface of the inner barrel are sprayed with graphene coatings.
Preferably, a reinforcing rib is arranged between the inner cylinder walls of the outer cylinder.
Preferably, a connecting plate is arranged between the middle cylindrical holes of the inner barrel, a first supporting pipe and a second supporting pipe are fixedly arranged on the connecting plate, and an included angle between the first supporting pipe and the second supporting pipe is 45 degrees.
Preferably, the outer surface of the outer barrel is provided with a bending handle, the linear distance between the outer dimension of the bending handle and the outer wall of the barrel is about 5 CM to 6CM, and the bending handle is provided with a rubber-plastic sheath.
Preferably, four positioning grooves are respectively arranged on the walls of the outer barrel and the inner barrel.
A heating method using polyethylene pipe welding heating equipment, comprising the steps of:
(1) Placing the heated polyethylene pipeline between an external heating cylinder and an internal heating cylinder along a guide ring;
(2) Then limiting the position of the heated pipe through a positioning ring;
(3) Starting the polyethylene pipeline welding heating equipment, and simultaneously heating the polyethylene by the external heating cylinder and the internal heating cylinder
A pipeline.
The beneficial effects of adopting above technical scheme are: the invention provides a novel polyethylene pipeline fusion heating device, which aims at the defects existing in the prior art, wherein an external heating cylinder and an internal heating cylinder can heat a heated pipeline between the external heating cylinder and the internal heating cylinder, reinforcing ribs are arranged between the inner cylinder walls of the external cylinder, in order to prevent the deformation of the heating cylinder caused by temperature difference and external force, the outer surface of the external cylinder is provided with a bending handle, the outer dimension of the bending handle is about 5 CM to 6CM away from the straight line of the outer wall of the cylinder, the bending handle is sleeved with a rubber-plastic sheath, the palm can be prevented from being frostbitten when a worker performs construction in winter, the outer surface of the internal cylinder and the inner surface of the external cylinder are sprayed with graphene coatings, the heat radiation coefficient of the surface of the heating cylinder is increased, the radiation heat exchange effect is enhanced, the heat transfer system between the heating cylinder and the PE pipe is increased, the positioning groove can ensure concentricity of heating materials, if the heating cylinder is partially heated to be higher, the positioning groove is arranged around the contact surface of the heating cylinder and the heated pipe, so that the local temperature is prevented from being too high, the first explosion-proof quick connector is connected with the end of the external heating cylinder, the second explosion-proof quick connector is connected with the end of the internal heating cylinder, the auxiliary welding of the PE pipe with heating waste heat during the outdoor PE pipe emergency construction in winter can be ensured, the construction emergency safety is ensured, the invention has simple structure, the preheating pipe can be assisted to be heated, when the temperature of the pipe reaches more than 0 ℃, the hot melting butt joint and the electric welding are carried out, the brittle fracture length of an electric melting pipe fitting can be effectively reduced, the welding quality is favorable, and the construction engineering quality of the gas PE pipe is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left cross-sectional view of the present invention;
fig. 4 is a rear view of the present invention.
Wherein: 1. the device comprises an outer barrel, 2, an inner barrel, 3, a heated pipeline, 4, a heating cylinder, 10, a guide ring, 11, an explosion-proof quick connector I, 12, a reinforcing rib, 13, a bending handle, 20, an inner and outer wall fixed sealing ring, 21, an explosion-proof quick connector II, 22, a connecting plate, 23, a positioning groove, 30, a positioning ring, 40, an external heating cylinder, 41, an internal heating cylinder, 22-1, a support tube I, 22-2 and a support tube II.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
As shown in figures 1 to 4, the polyethylene pipeline welding and heating device is simple in structure, can assist in heating and preheating a pipeline, and can effectively reduce the brittle fracture length of an electric melting pipe fitting, is beneficial to welding quality and improves the construction quality of a gas PE pipeline when the temperature of the pipeline reaches more than 0 ℃ and then carries out hot melting butt joint and electric melting welding.
Specifically, as shown in fig. 1 to 4, the heating device comprises an outer barrel 1, an inner barrel 2, a heated pipeline 3 and a heating barrel 4, wherein the heating barrel 4 comprises an outer heating barrel 40 and an inner heating barrel 41, the inner barrel 2 is positioned inside the outer barrel 1, the inner surface of the outer barrel 1 is covered with the outer heating barrel 40, the outer surface of the inner barrel 2 is covered with the inner heating barrel 40, the inner edge of the outer barrel 1 is provided with a guide ring 10, the heated pipeline 3 enters between the outer heating barrel 40 and the inner heating barrel 41 along the guide ring 1, a positioning ring 30 is arranged on the right end surface between the outer heating barrel 40 and the inner heating barrel 41, the positioning ring 30 limits the position of the heated pipe 3, the left end surface of the inner barrel 2 is provided with an inner wall and outer wall fixing sealing ring 20, the right end surface of the outer barrel 1 is provided with an explosion-proof quick connector one 11, the right end surface of the inner barrel 2 is provided with an explosion-proof quick connector two 21, and the explosion-proof quick connector one 11 is connected with the connecting end of the outer heating barrel 40
The explosion quick connector II 21 is connected with the wiring end of the inner heating cylinder 41.
In this embodiment, the inner surface of the outer tub 1 and the outer surface of the inner tub 2 are coated with graphene coating.
In this embodiment, a reinforcing rib 12 is disposed between the inner walls of the outer tub 1.
In this embodiment, a connecting plate 22 is disposed between the middle cylindrical holes of the inner barrel 1, a first support tube 22-1 and a second support tube 22-2 are fixedly disposed on the connecting plate 22, and an included angle between the first support tube 22-1 and the second support tube 22-2 is 45 °.
In this embodiment, the outer surface of the outer barrel 1 is provided with a curved handle 13, the linear distance between the outer dimension of the curved handle 13 and the outer wall of the barrel is about 5 CM to 6CM, and the curved handle 13 is provided with a rubber-plastic sheath.
In this embodiment, four positioning grooves 23 are respectively provided on the walls of the outer tub 1 and the inner tub 2.
A heating method using polyethylene pipe welding heating equipment, comprising the steps of:
(1) Placing the heated polyethylene pipeline between an external heating cylinder and an internal heating cylinder along a guide ring;
(2) Then limiting the position of the heated pipe through a positioning ring;
(3) Starting the polyethylene pipeline welding heating equipment, and simultaneously heating the polyethylene by the external heating cylinder and the internal heating cylinder
A pipeline.
Based on the above, this polyethylene pipeline butt fusion firing equipment, heating rate is fast: the pipeline reaches the preheating temperature in 20 minutes, the heating is uniform, the uniformity of the temperature of the whole surface reaches plus or minus 2 ℃, the heater is convenient to install and can be installed for 5 seconds and disassembled for 5 seconds, and the PE pipeline is protected: the maximum heating temperature is not more than 80 ℃, the electric connection of the whole heating equipment adopts aviation plugs, the safety and the rapid plugging are ensured, and the electric connection device is matched with an FGRS-03 multiplied by 2 intelligent temperature regulator for use, and has an integrated structure of temperature data acquisition, temperature control, heating power output and the like.
The following describes specific modes of operation with specific examples: the external heating cylinder 40 and the internal heating cylinder 41 can heat the heated pipeline 2 between the external heating cylinder 40 and the internal heating cylinder 41, the reinforcing ribs 12 are arranged between the inner cylinder walls of the external cylinder 1, in order to prevent the heating cylinder 4 from deforming due to temperature difference and external force, the outer surface of the external cylinder 1 is provided with the bending handle 13, the linear distance between the outer dimension of the bending handle 13 and the outer wall of the cylinder is about 5 CM to 6CM, the rubber and plastic sheath is sleeved on the bending handle 13, the palm can be prevented from being frosted during construction of workers in winter, the graphene coating is sprayed on the outer surface of the internal cylinder 2 and the inner surface of the external cylinder 1, the thermal radiation coefficient of the surface of the heating cylinder is increased, the radiation heat exchange effect is enhanced, the heat transfer system between the heating cylinder 4 and PE pipe is increased, the concentricity of heating materials can be guaranteed by the positioning groove 23, if the heating cylinder 4 is partially heated to be higher, the periphery of the contact surface of the heating cylinder 4 and the heated pipeline 3 can be prevented from being excessively high in local temperature, the first explosion-proof quick connector 11 is connected with the connecting terminal of the external heating cylinder 40, the second explosion-proof quick connector 21 is connected with the internal heating cylinder 41, the PE pipe 41 can be ensured to be prevented from being frosted, the PE is easy to be heated, the welding structure can be easily, the welding pipeline can be easily heated, the welding quality can be easily increased, the welding pipeline can be easily and the welding quality can be guaranteed, and the welding quality can be increased, and the welding quality can be easily and increased when the welding pipeline can reach the welding quality when the welding quality of the welding pipe is convenient, and the welding quality can be easily when the welding quality can and the welding quality can reach the welding quality when the welding quality can and the welding quality.
The present invention has been described above by way of example with reference to the accompanying drawings, and it is apparent that the specific implementation of the present invention is not limited by the above manner, and that the above concepts and technical solutions of the present invention can be directly applied to other occasions without substantial improvement or modification by adopting the method concepts and technical solutions of the present invention, which are all within the scope of protection of the present invention.
Claims (7)
1. A polyethylene pipe welding heating device, which is characterized in that: including outer bucket (1), interior bucket (2), by heating pipe (3) and heating cylinder (4), heating cylinder (4) are including outer heating cylinder (40) and interior heating cylinder (41), interior bucket (2) are located inside outer bucket (1), outer bucket (1) internal surface covers has outer heating cylinder (40), the surface of interior bucket (2) covers has interior heating cylinder (41), outer bucket (1) inward flange is equipped with guide ring (10), by heating pipe (3) get into between outer heating cylinder (40) and interior heating cylinder (41) along guide ring (10), right-hand member face is equipped with holding ring (30) between outer heating cylinder (40) and interior heating cylinder (41), the position of holding ring (30) restriction by heating pipe (3), interior bucket (2) left end face is equipped with interior outer wall fixed seal ring (20), outer bucket (1) right-hand member face is equipped with explosion-proof quick-operation joint one (11), and explosion-proof quick-operation joint one (11) and barrel (40) get into between outer heating cylinder (40) and interior heating cylinder (41), right-hand member face and explosion-proof quick-operation joint (21) are connected with two, and explosion-proof quick-operation joint (21).
2. The polyethylene pipe fusion heating apparatus of claim 1, wherein: and the inner surface of the outer barrel (1) and the outer surface of the inner barrel (2) are sprayed with graphene coatings.
3. The polyethylene pipe fusion heating apparatus of claim 1, wherein: reinforcing ribs (12) are arranged between the inner cylinder walls of the outer cylinder (1).
4. The polyethylene pipe fusion heating apparatus of claim 1, wherein: a connecting plate (22) is arranged between the middle cylindrical holes of the inner barrel (2), a first supporting tube (22-1) and a second supporting tube (22-2) are fixedly arranged on the connecting plate (22), and an included angle between the first supporting tube (22-1) and the second supporting tube (22-2) is 45 degrees.
5. The polyethylene pipe fusion heating apparatus of claim 1, wherein: the outer surface of the outer barrel (1) is provided with a bending handle (13), the linear distance between the outer dimension of the bending handle (13) and the outer wall of the barrel is 5-6CM, and the bending handle (13) is provided with a rubber and plastic sheath.
6. The polyethylene pipe fusion heating apparatus of claim 1, wherein: four positioning grooves (23) are respectively arranged on the barrel walls of the outer barrel (1) and the inner barrel (2).
7. A heating method using the polyethylene pipe welding heating apparatus of claim 1, characterized in that: the method comprises the following steps:
placing the heated polyethylene pipeline between an external heating cylinder and an internal heating cylinder along a guide ring;
then limiting the position of the heated pipe through a positioning ring;
and starting the polyethylene pipeline welding heating equipment, and simultaneously heating the polyethylene pipeline by the external heating cylinder and the internal heating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825106.9A CN107364051B (en) | 2017-09-14 | 2017-09-14 | Polyethylene pipeline welding heating equipment and heating method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825106.9A CN107364051B (en) | 2017-09-14 | 2017-09-14 | Polyethylene pipeline welding heating equipment and heating method thereof |
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| Publication Number | Publication Date |
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| CN107364051A CN107364051A (en) | 2017-11-21 |
| CN107364051B true CN107364051B (en) | 2023-07-28 |
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| CN201710825106.9A Active CN107364051B (en) | 2017-09-14 | 2017-09-14 | Polyethylene pipeline welding heating equipment and heating method thereof |
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