CN221869136U - A pipeline liquid coating heating and curing device - Google Patents

Abstract

The utility model discloses a pipeline liquid coating heating and curing device, including a vehicle body, a first semicircular side plate is arranged above the vehicle body, the top of the first semicircular side plate is rotatably connected to the second semicircular side plate, the bottom of the second semicircular side plate is fixedly connected to the first semicircular side plate on both sides through a fixed knob, and the first semicircular side plate and the second semicircular side plate are both provided with semicircular rings at both ends, and a pipe body is arranged inside the semicircular rings. The utility model relates to the technical field of pipeline construction, and solves the problem that in the prior art, when the pipeline patch heating equipment adopts heating methods such as electric heating wires or infrared radiation, there is uneven heating and excessive local temperature when heating a large area of liquid coating, which easily leads to carbonization of the coating, and when the open flame or resistance wire of the heating equipment such as gas or electric heating wire is used for heating, there is a risk of fire in the coating.

Description

A pipeline liquid coating heating and curing device

Technical Field

The utility model relates to the technical field of pipeline construction, in particular to a pipeline liquid coating heating and curing device.

Background Art

Pipeline construction is widely used in many industries such as petroleum, chemical industry, electricity, communication, municipal administration and construction. The steel pipes used in pipeline construction must be anti-corrosion treated pipes. 3PE anti-corrosion structure is a commonly used anti-corrosion structure for pipeline external corrosion protection. Practice has proved that this anti-corrosion structure has relatively ideal comprehensive performance. In pipeline construction, the anti-corrosion of the steel pipeline interface weld is completed on the construction site. The performance of the pipeline patching anti-corrosion technology used has a significant impact on the overall anti-corrosion effect of the pipeline. To some extent, it determines the success or failure of the pipeline anti-corrosion effect. The interface weld of 3PE anti-corrosion pipe generally adopts heat shrink sleeve (belt) patching technology, which adopts heating shrink sleeve (belt) on epoxy primer. The structure of heat shrink sleeve (belt) is a composite structure of shrinking substrate and heating melt adhesive. In the prior art, the pipe patching heating equipment uses heating methods such as electric heating wires or infrared radiation. When heating a large area of liquid coating, there is uneven heating and local excessive temperature, which can easily lead to carbonization of the coating. In addition, when the open flame or resistance wire of heating equipment such as gas or electric heating wires is used for heating, there is a risk of fire in the coating.

Summary of the invention

In view of the shortcomings of the prior art, the utility model provides a pipeline liquid coating heating and curing device, which solves the problem in the prior art that the pipeline patching heating equipment adopts heating methods such as electric heating wires or infrared radiation, which causes uneven heating and excessive local temperature when heating a large area of liquid coating, easily leading to carbonization of the coating, and the coating is at risk of fire when heated by open flames or resistance wires of heating equipment such as gas or electric heating wires.

To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a pipeline liquid coating heating and curing device, including a body, a first semicircular side plate is arranged above the body, the top of the first semicircular side plate is rotatably connected to the second semicircular side plate, the bottom of the second semicircular side plate is fixedly connected to the first semicircular side plate on both sides through a fixing knob, the first semicircular side plate and the second semicircular side plate are both provided with semicircular rings at both ends, a pipe body is arranged inside the semicircular rings, and the semicircular rings and the pipe body are both matched and connected on the side close to each other A closed filler is connected, the inner walls of the first semicircular side panel and the second semicircular side panel are provided with insulation panels, a hot air source is provided on the top of the vehicle body, semicircular ventilation ducts are equidistantly provided on both sides of the interior of the first semicircular side panel, air outlets are equidistantly provided on the outer walls of the semicircular ventilation ducts, the semicircular ventilation ducts are connected with the hot air source, an exhaust port is provided on the side of the second semicircular side panel away from the first semicircular side panel, a sealing plug is cooperatively connected to the inner wall of the exhaust port, a controller is provided on the top of the vehicle body, and the controller is electrically connected to the hot air source.

Preferably, both sides of the bottom of the vehicle body are rotatably connected with moving wheels, a lifting frame is provided on the top of the vehicle body, the lifting frame is fixedly connected to the first semicircular side panel, a fixing tube is provided on one side of the top of the vehicle body, the fixing tube is cooperatively connected to the lifting frame, an adjusting knob is threadedly connected to one side of the fixing tube, the adjusting knob is cooperatively connected to the lifting frame, and a handle is provided on the side of the lifting frame away from the first semicircular side panel.

Preferably, a temperature sensor is provided on the top of the first semicircular side plate, and the temperature sensor is electrically connected to the controller; sound and light indicators are provided on both sides of the lifting frame, and the sound and light indicators are electrically connected to the controller.

Preferably, both ends of the first semicircular side plate and the second semicircular side plate are provided with fixed edges, the inner wall of the fixed edge is cooperatively connected with the semicircular ring, and the semicircular ring is fixedly connected with the fixed edge by fixing bolts.

Preferably, the outer wall of the semicircular ventilation duct is equidistantly connected with fixing clips, and the fixing clips are fixedly connected to the first semicircular side plate.

The utility model provides a pipeline liquid coating heating and curing device. It has the following beneficial effects: the pipeline liquid coating heating and curing device, through the cooperation between the vehicle body, the first semicircular side plate, the second semicircular side plate, the semicircular ring, the closed filler, the hot air source, the semicircular ventilation pipe, the air outlet, the exhaust port, the sealing plug, the controller, the insulation plate and the fixed knob, by fixing the insulation sealing shell on the outside of the pipeline patch, and transmitting hot air of a certain temperature to the inside of the insulation sealing shell through the hot air source, can increase the temperature of the liquid coating, heat and cure the pipeline liquid coating, compared with heating methods such as electric heating wires or infrared radiation, the heating of the liquid coating can be made more uniform, avoiding carbonization of the coating caused by excessive local temperature, so that the curing effect and safety of the pipeline liquid coating can be improved.

Through the coordination among the vehicle body, the first semicircular side panel, the moving wheels, the fixed tube, the lifting frame, the handle and the adjusting knob, the mobility of the heating and curing device is improved, and at the same time, the height of the thermal insulation sealing shell can be adjusted and fixed, so that the thermal insulation sealing shell can be stably supported and fixed, and pipes at different heights can be heated and cured, so that the use and operation of the pipeline liquid coating heating and curing device is convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a structural side view of the semicircular ventilation pipe, the semicircular ring and the pipe body in FIG1 ;

FIG3 is a partial enlarged view of the area A in FIG1 ;

FIG4 is a partial enlarged view of area B in FIG1 ;

FIG. 5 is a partial enlarged view of area C in FIG. 2 .

In the figure: 1, vehicle body, 2, first semicircular side panel, 3, second semicircular side panel, 4, semicircular ring, 5, tube body, 6, closed filler, 7, hot air source, 8, semicircular ventilation duct, 9, air outlet, 10, exhaust outlet, 11, sealing plug, 12, controller, 13, insulation board, 14, fixing knob, 15, moving wheel, 16, fixing tube, 17, lifting frame, 18, handle, 19, adjusting knob, 20, temperature sensor, 21, sound and light prompter, 22, fixing edge, 23, fixing bolt, 24, fixing card.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In the prior art, the pipe patching heating equipment adopts heating methods such as electric heating wires or infrared radiation. When heating a large area of liquid coating, there is uneven heating and local excessive temperature, which can easily lead to carbonization of the coating. In addition, when the open flame or resistance wire of heating equipment such as gas or electric heating wires is used for heating, there is a risk of fire in the coating.

In view of this, the utility model provides a pipeline liquid coating heating and curing device, which cooperates with a vehicle body, a first semicircular side panel, a second semicircular side panel, a semicircular ring, a closed filler, a hot air source, a semicircular ventilation pipe, an air outlet, an exhaust port, a sealing plug, a controller, a thermal insulation plate and a fixing knob. By fixing a thermal insulation sealing shell on the outside of the pipeline patch, and transmitting hot air of a certain temperature to the inside of the thermal insulation sealing shell through the hot air source, the temperature of the liquid coating is increased, and heating and curing of the pipeline liquid coating is achieved. Compared with heating methods such as electric heating wires or infrared radiation, the heating of the liquid coating is more uniform, and carbonization of the coating caused by excessive local temperature is avoided, thereby improving the curing effect and safety of the pipeline liquid coating.

Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

As shown in Figures 1-5, a pipeline liquid coating heating and curing device comprises a body 1, which is a mobile body of the pipeline liquid coating heating and curing device, and supports and moves a heat-insulating and sealed shell. A first semicircular side panel 2 is arranged above the body 1, and the top of the first semicircular side panel 2 is rotatably connected to the second semicircular side panel 3, and both sides of the bottom of the second semicircular side panel 3 are fixedly connected to the first semicircular side panel 2 through a fixing knob 14. Semicircular rings 4 are arranged at both ends of the first semicircular side panel 2 and the second semicircular side panel 3, and a tube body 5 is arranged inside the semicircular ring 4. The tube body 5 is a pipeline main body coated with a liquid coating, and a closed filler 6 is connected to the side where the semicircular ring 4 and the tube body 5 are close to each other. The closed filler 6 is made of plastic or rubber, and is wound around the outer wall of the tube body 5 to fill the gap between the semicircular ring 4 and the tube body 5, so as to improve the sealing effect of the heat-insulating and sealed shell. The inner walls of the semicircular side panel 2 and the second semicircular side panel 3 are both provided with insulation panels 13, and a hot air source 7 is provided on the top of the vehicle body 1. The hot air source 7 is used to provide hot air to the interior of the heat-insulating sealed shell. Semicircular ventilation pipes 8 are equidistantly provided on both sides of the interior of the first semicircular side panel 2, and air outlets 9 are equidistantly provided on the outer wall of the semicircular ventilation pipe 8. The semicircular ventilation pipe 8 is connected to the hot air source 7. An exhaust port 10 is provided on the side of the second semicircular side panel 3 away from the first semicircular side panel 2. The exhaust port 10 is used to exhaust air from the heat-insulating sealed shell, so that the heat-insulating sealed shell can quickly reach the set temperature. A sealing plug 11 is connected to the inner wall of the exhaust port 10, and the sealing plug 11 is used to close the exhaust port 10. A controller 12 is provided above the vehicle body 1. The controller 12 is used to set the heating temperature, heating time, etc. of the pipeline liquid coating heating and curing device, and the controller 12 is electrically connected to the hot air source 7;

In the specific implementation process, it is worth pointing out that the vehicle body 1 is the mobile vehicle body of the pipeline liquid coating heating and curing device, which supports and moves the heat-insulating sealing shell. Through the cooperation between the first semicircular side plate 2, the second semicircular side plate 3, the semicircular ring 4, the heat-insulating plate 13 and the fixing knob 14, the first semicircular side plate 2 and the second semicircular side plate 3 are fixed by the fixing knob 14 to form a cylindrical heat-insulating sealing shell. The shell body and the side plate materials can be made of galvanized iron, stainless steel, or organic plastics such as PVC, PMMA, etc. The inner diameter of the ring is intended to be used for the maximum outer diameter of the patched pipe, and detachable semicircular rings are provided at both ends. The annular side plate is used for sealing and heat-insulating the side of the heat-insulating sealed shell. The size of the semicircular ring 4 can be replaced and adjusted according to the outer diameter of the pipeline. The pipe body 5 is a pipe body coated with a liquid coating. The closed filler 6 is made of plastic or rubber and is wound around the outer wall of the pipe body 5 to fill the gap between the semicircular ring 4 and the pipe body 5 to improve the sealing effect of the heat-insulating sealed shell. The hot air source 7 is used to provide hot air to the inside of the heat-insulating sealed shell. Through the cooperation between the hot air source 7, the semicircular ventilation pipe 8 and the air outlet 9, the air duct system of the pipeline liquid coating heating and curing device is composed. The static pressure air supply or the spray hole jet mode is adopted to achieve uniform air supply. The temperature is evenly distributed, and a single semicircular ventilation pipe 8 is installed along the circumference, arranged axially, and connected to the hot air source 7 through a ventilation hose. The air outlet 9 is not less than 20 mm away from the paint surface. The exhaust port 10 is used to exhaust the heat-insulating sealed shell, so that the heat-insulating sealed shell can quickly reach the set temperature. The sealing plug 11 is used to seal the exhaust port 10. The controller 12 is used to set the heating temperature and heating time of the pipeline liquid coating heating and curing device. Through the vehicle body 1, the first semicircular side panel 2, the second semicircular side panel 3, the semicircular ring 4, the closed filler 6, the hot air source 7, the semicircular ventilation pipe 8, the air outlet 9, the exhaust port 10 The coordination between the air vent 10, the sealing plug 11, the controller 12, the insulation board 13 and the fixing knob 14 is to fix the insulation sealing shell on the outside of the pipe patching, and to transport hot air of a certain temperature to the inside of the insulation sealing shell through the hot air source 7, so as to increase the temperature of the liquid coating and realize the heating and curing of the pipe liquid coating. Compared with heating methods such as electric heating wires or infrared radiation, the heating of the liquid coating is more uniform, and the carbonization of the coating caused by excessive local temperature is avoided, thereby improving the curing effect and safety of the pipe liquid coating. The specific models of the hot air source 7 and the controller 12 are not limited, and can meet the use requirements;

Further, both sides of the bottom of the vehicle body 1 are rotatably connected with moving wheels 15, a lifting frame 17 is provided on the top of the vehicle body 1, and the lifting frame 17 is fixedly connected to the first semicircular side panel 2, a fixing pipe 16 is provided on one side of the top of the vehicle body 1, and the fixing pipe 16 is matched with the lifting frame 17, and an adjusting knob 19 is threadedly connected to one side of the fixing pipe 16, and the adjusting knob 19 is matched with the lifting frame 17, and a handle 18 is provided on the side of the lifting frame 17 away from the first semicircular side panel 2;

In the specific implementation process, it is worth pointing out that, through the cooperation among the vehicle body 1, the fixed pipe 16, the lifting frame 17 and the adjusting knob 19, the fixed pipe 16 and the lifting frame 17 are fixed by rotating the adjusting knob 19, so as to realize the lifting adjustment and fixing of the lifting frame 17. Through the cooperation among the vehicle body 1, the first semicircular side plate 2, the fixed pipe 16, the lifting frame 17 and the adjusting knob 19, the vehicle body 1 and the heat-insulating sealed shell are fixed, and by adjusting the fixed height of the lifting frame 17, the height of the heat-insulating sealed shell can be adjusted, so that the heat-insulating sealed shell can heat and cure pipes of different heights. 15, the coordination between the fixed tube 16, the lifting frame 17, the handle 18 and the adjusting knob 19 improves the mobility of the pipeline liquid coating heating and curing device, and facilitates the movement and fixation of the heating and curing device at the construction site. Through the coordination between the vehicle body 1, the first semicircular side plate 2, the moving wheel 15, the fixed tube 16, the lifting frame 17, the handle 18 and the adjusting knob 19, the mobility of the heating and curing device is improved, and at the same time, the height of the heat-insulating sealing shell can be adjusted and fixed, so that the heat-insulating sealing shell is stably supported and fixed, and pipes of different heights are heated and cured, thereby improving the use convenience of the heating and curing device;

Further, a temperature sensor 20 is provided on the top of the first semicircular side plate 2, and the temperature sensor 20 is used to measure the heating temperature in the heat-insulating sealed shell, and transmit the temperature signal to the controller 12 in real time, so that the controller 12 can accurately detect the heating temperature. The temperature sensor 20 is electrically connected to the controller 12, and both sides of the lifting frame 17 are provided with an audible and visual prompter 21, which is used to prompt the staff to perform subsequent operations through audible and visual prompts after reaching the preset heating time, and the audible and visual prompter 21 is electrically connected to the controller 12;

In the specific implementation process, it is worth pointing out that the temperature sensor 20 is used to measure the heating temperature in the heat-insulating sealed shell, and transmits the temperature signal to the controller 12 in real time, so that the controller 12 can accurately detect the heating temperature, monitor the temperature in the shell, switch the heat source and adjust the air volume, so as to achieve accurate control of the heating process, and the sound and light prompter 21 is used to prompt the staff to perform subsequent operations through sound and light after the preset heating time is reached, wherein the specific models of the temperature sensor 20 and the sound and light prompter 21 are not limited, and can meet the use requirements;

Furthermore, both ends of the first semicircular side plate 2 and the second semicircular side plate 3 are provided with a fixed edge 22, the inner wall of the fixed edge 22 is matched and connected with the semicircular ring 4, and the semicircular ring 4 is fixedly connected with the fixed edge 22 by a fixing bolt 23;

In the specific implementation process, it is worth pointing out that, through the cooperation between the first semicircular side plate 2, the second semicircular side plate 3, the semicircular ring 4, the fixed edge 22 and the fixing bolts 23, the semicircular ring 4 is fixed in the fixed edge 22 by the fixing bolts 23, so as to realize the installation and fixation between the semicircular ring 4 and the first semicircular side plate 2 and the second semicircular side plate 3, and at the same time, the semicircular ring 4 of the corresponding size can be selected according to the size of the pipeline, so as to improve the application range of the pipeline liquid coating heating fixing device;

Furthermore, the outer wall of the semicircular ventilation pipe 8 is equidistantly connected with a fixing card 24, and the fixing card 24 is fixedly connected to the first semicircular side plate 2;

In the specific implementation process, it is worth pointing out that the semicircular ventilation pipe 8 is fixed in the first semicircular side plate 2 through the cooperation between the first semicircular side plate 2, the semicircular ventilation pipe 8 and the fixing card 24, thereby improving the stability of the semicircular ventilation pipe 8;

Specifically, when using the pipeline liquid coating heating and curing device, the heating and curing device is moved to one side of the pipeline patching mouth, and a semicircular ring 4 of corresponding size is selected according to the diameter of the pipeline, and the semicircular ring 4 is respectively placed in the fixing edges 22 at both ends of the first semicircular side plate 2 and the second semicircular side plate 3, and fixed with fixing bolts 23, and the height of the lifting frame 17 is adjusted to make the center height of the first semicircular side plate 2 and the second semicircular side plate 3 consistent with the pipeline, and the second semicircular side plate 3 is rotated upward, and the vehicle body 1 is moved in the direction close to the pipeline, so that the semicircular rings 4 at both ends of the first semicircular side plate 2 are pressed against the outer wall of the pipeline, and the second semicircular side plate 3 is rotated, and the first semicircular side plate 2 and the second semicircular side plate 3 are fixed by the fixing knob 14. A semicircular side panel 2 and a second semicircular side panel 3 form a covering on the patching mouth of the pipeline to form a complete heat-insulating sealed shell. The position of the vehicle body 1 is adjusted to keep the center positions of the semicircular ring 4 and the tube body 5 consistent. A closed filler 6 such as a plastic or rubber strip is used to wrap the tube body 5 on the outside of the heat-insulating sealed shell, and the closed filler 6 is inserted into the gap between the semicircular ring 4 and the tube body 5 to seal the heat-insulating sealed shell. The heating temperature and heating time are set by the controller 12, the hot air source 7 is turned on, and the hot air temperature of the hot air source 7 is adjusted. The hot air source 7 transmits the hot air to the semicircular ventilation pipe 8, and the hot air is evenly transmitted to the inside of the heat-insulating sealed shell through the air outlet 9. The sealing plug 11 is opened, and the cold air in the heat-insulating sealed shell is discharged from the exhaust port 10. The temperature The sensor 20 measures the temperature in the heat-insulating closed shell and transmits the measured data to the controller 12 in real time. After the temperature in the heat-insulating closed shell reaches the set temperature, the controller 12 starts timing and uses the sealing plug 11 to seal the exhaust port 10. The controller 12 automatically adjusts and controls the temperature of the hot air delivered by the hot air source 7 according to the temperature value fed back by the temperature sensor 20, so that the pipeline liquid coating is heated and fixed at a constant temperature. After the heating time is reached, the pipeline liquid coating completes heating and curing, and the controller 12 automatically stops the hot air source 7 and reminds the staff through the sound and light prompter 21 to rotate the fixing knob 14 to release the fixation between the first semicircular side panel 2 and the second semicircular side panel 3, and rotate the second semicircular side panel 3 to move away from the pipeline. The vehicle body 1 is moved in the direction of rotation to complete the heating and curing of the liquid coating on the pipeline. Through the cooperation among the vehicle body 1, the first semicircular side panel 2, the second semicircular side panel 3, the semicircular ring 4, the closed filler 6, the hot air source 7, the semicircular ventilation pipe 8, the air outlet 9, the exhaust port 10, the sealing plug 11, the controller 12, the insulation board 13 and the fixing knob 14, the insulation sealing shell is fixed on the outside of the pipeline patch, and the hot air of a certain temperature is transported to the inside of the insulation sealing shell through the hot air source 7, so as to increase the temperature of the liquid coating and realize the heating and curing of the liquid coating on the pipeline. Compared with heating methods such as electric heating wire or infrared radiation, the heating of the liquid coating is more uniform, so as to avoid carbonization of the coating caused by excessive local temperature, and improve the curing effect and safety of the liquid coating on the pipeline.

In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a pipeline liquid coating heating solidification equipment, includes automobile body, its characterized in that: the top of automobile body is provided with first semicircle type curb plate, the top of first semicircle type curb plate rotates and is connected with the second semicircle type curb plate, the bottom both sides of second semicircle type curb plate all are provided with semicircle ring through fixed knob and first semicircle type curb plate fixed connection, the both ends of first semicircle type curb plate and second semicircle type curb plate all are provided with semicircle ring, the inside of semicircle ring is provided with the body, one side that semicircle ring and body are close to each other all cooperates and is connected with the closed filler, the inner wall of first semicircle type curb plate and second semicircle type curb plate all is provided with the heated air source, the inside both sides equal distance of first semicircle type curb plate is provided with semicircle type ventilation pipe, the outer wall equidistance of semicircle type ventilation pipe is provided with the air outlet, semicircle type ventilation pipe is linked together with the heated air source, one side that first semicircle type curb plate was kept away from to the second semicircle type curb plate, the inner wall cooperation of air outlet is connected with the sealing plug, the top of automobile body is provided with the controller and the source electricity is connected.

2. A device for heat curing of liquid coatings for pipelines according to claim 1 and being characterized in that: the lifting device is characterized in that moving wheels are rotatably connected to two sides of the bottom of the vehicle body, a lifting frame is arranged at the top of the vehicle body and fixedly connected with a first semicircular side plate, a fixed pipe is arranged on one side of the top of the vehicle body and is connected with the lifting frame in a matched mode, an adjusting knob is connected to one side of the fixed pipe in a threaded mode, the adjusting knob is connected with the lifting frame in a matched mode, and a handle is arranged on one side, away from the first semicircular side plate, of the lifting frame.

3. A device for heat curing of liquid coatings for pipelines according to claim 2 and being characterized in that: the top of first semicircle curb plate is provided with temperature sensor, temperature sensor is connected with the controller electricity, the both sides of crane all are provided with audible-visual annunciator, audible-visual annunciator is connected with the controller electricity.

4. A device for heat curing of liquid coatings for pipelines according to claim 1 and being characterized in that: the two ends of the first semicircular side plate and the second semicircular side plate are respectively provided with a fixing edge, the inner wall of the fixing edge is connected with a semicircular ring in a matched mode, and the semicircular ring is fixedly connected with the fixing edge through a fixing bolt.

5. A device for heat curing of liquid coatings for pipelines according to claim 1 and being characterized in that: the outer wall equidistance cooperation of semicircle formula ventilation pipe is connected with the fixing clip, fixing clip and first semicircle formula curb plate fixed connection.