Pipeline welding preheating and heat preservation device

Abstract

The utility model discloses a pipeline welding preheating heat preservation device which comprises a windproof cover, a plurality of heat preservation plates and magnetoelectric heating ropes, the windproof cover is a cylindrical windproof cover, the heat preservation plates are matched together to form cylindrical clamping sleeves, the clamping sleeves are arranged at the two ends of the windproof cover, the magnetoelectric heating ropes are laid in the clamping sleeves, and the magnetoelectric heating ropes are arranged in the clamping sleeves. Heat preservation cotton is arranged in the clamping sleeve, and the heat preservation cotton is located between the magnetoelectric heating rope and the clamping sleeve. Compared with the prior art, the device has the following beneficial effects that the pipeline is preheated by adopting a mode of heating by the magnetoelectric heating rope, the operation is more convenient, the safety coefficient is higher, and the temperature in the whole device is easier to regulate and control by adopting an electric heating mode.

Description

Technical Field

[0001] The utility model relates to the field of pipeline welding auxiliary equipment, in particular to a pipeline welding preheating and heat preservation device. Background Art

[0002] Many pipelines need to be preheated before welding. In order to preheat the pipelines before welding, the patent announcement document CN211939594U discloses a device that can preheat the pipeline. This preheating uses gas combustion to generate flames to heat the pipeline. Therefore, the preheating device of this structure must have combustible gas to be used. However, when combustible gas is stored and used, the operator's operating skills are required to be high, and careless operation can easily cause deflagration. Utility Model Content

[0003] In view of the above problems, the utility model proposes a pipeline welding preheating and heat preservation device, which uses electric heating to preheat the pipeline. Electric heating has low operating skill requirements for operators and is easier to control temperature than flame heating.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A pipeline welding preheating and insulation device comprises a wind shield, a plurality of insulation plates and a magnetoelectric heating rope, wherein the wind shield is a cylindrical wind shield, the insulation plates cooperate together to form a cylindrical clamping sleeve, clamping sleeves are arranged at both ends of the wind shield, the magnetoelectric heating rope is laid in the clamping sleeve, insulation cotton is arranged in the clamping sleeve, and the insulation cotton is located between the magnetoelectric heating rope and the clamping sleeve.

[0006] In this heat preservation device, two clamping sleeves are arranged at both ends of the wind shield, the two clamping sleeves are used to clamp the pipes, the two supporting sleeves respectively support one pipe, and the butt ends of the two pipes are located inside the wind shield. The magnetic electric heating rope will generate heat when energized, thereby heating the pipes inside the clamping sleeves, and the heat preservation cotton reduces the heat loss inside the clamping sleeves.

[0007] In summary, this preheating and heat preservation device preheats the pipeline by using a magnetic electric heating rope to generate heat, which is more convenient to operate and has a higher safety factor. The electric heating method makes it easier to regulate the temperature in the entire device.

[0008] Optionally, it also includes a sealing ring, which is arranged on the clamping sleeve, and the sealing ring and the wind shield are respectively located at two ends of the clamping ring.

[0009] When the pipe is inserted into the clamping sleeve, the sealing ring is pressed against the outer wall of the pipe, which can not only clamp the pipe more stably, but also prevent heat from leaking from the gap between the pipe and the clamping sleeve.

[0010] Optionally, it also includes a thermocouple protection box, which is arranged on the windshield and inside the windshield. A display is arranged outside the windshield, and the display is connected to the thermocouple.

[0011] Optionally, a thermocouple is also included, and the thermocouple is located at one end of the clamping sleeve.

[0012] The opening on the windshield is a channel for external cold air to enter the windshield. In order to ensure the temperature inside the windshield, a thermocouple is further arranged at the opening of the windshield. The thermocouple is used to heat the opening to ensure that the temperature inside the entire windshield is roughly equal to the temperature inside the clamping sleeve.

[0013] Optionally, it further includes an end plate ring, and the end plate ring is provided at both ends of the wind shield, and the clamping sleeve is provided on the end plate ring.

[0014] The function of the end plate ring is to facilitate the installation of the clamping sleeve.

[0015] Optionally, the insulation board is an arc-shaped insulation board, one end of two adjacent insulation boards are fitted together by a hinge, a fixing plate is provided on the other end of each insulation board, and the fixing plates on the two adjacent insulation boards are fitted together by bolts.

[0016] Optionally, it also includes a cable protection tube, which is arranged in the thermal insulation cotton. The magnetic electric heating rope is connected to a heating rope cable, and a part of the heating rope cable is located in the thermal insulation cotton.

[0017] The function of the cable protection tube is to protect the heating rope cable.

[0018] Optionally, the magnetoelectric heating rope is laid in a spiral shape in the clamping sleeve.

[0019] Optionally, a fixed handle is provided on the outer wall of the wind shield.

[0020] The beneficial effects of the utility model are: the pipeline is preheated by adopting the method of heating with a magnetic electric heating rope, the operation is more convenient, the safety factor is higher, and the electric heating method makes it easier to regulate the temperature in the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram showing the use of the pipeline welding preheating and insulation device;

[0022] Figure 2 yes Figure 1 Middle D-direction view;

[0023] Figure 3 yes Figure 2 Schematic diagram of the cross section along the AA direction;

[0024] Figure 4 yes Figure 2 Schematic diagram of the cross section along the BB direction;

[0025] Figure 5 yes Figure 2 Schematic diagram of the cross section along the CC direction.

[0026] The reference numerals in the figure are: 1. pipeline; 2. insulation board; 3. end plate ring; 4. wind shield; 5. thermocouple protection box; 6. display; 7. fixing plate; 8. bolt; 9. fixing handle; 10. thermocouple; 11. insulation cotton; 12. magnetoelectric heating rope; 13. high temperature resistant cable protection tube; 14. hinge; 15. sealing ring; 16. heating rope cable. DETAILED DESCRIPTION

[0027] The utility model is described in detail below in conjunction with the accompanying drawings.

[0028] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, a pipeline 1 welding preheating and heat preservation device includes a wind shield 4, a plurality of heat preservation plates 2 and a magnetoelectric heating rope 12. The wind shield 4 is cylindrical, and the heat preservation plates 2 cooperate together to form a cylindrical clamping sleeve. Clamping sleeves are arranged at both ends of the wind shield 4. The magnetoelectric heating rope 12 is laid in the clamping sleeve. Heat preservation cotton 11 is arranged in the clamping sleeve. The heat preservation cotton 11 is located between the magnetoelectric heating rope 12 and the clamping sleeve.

[0029] In this heat preservation device, two clamping sleeves are arranged at both ends of the wind shield 4, and the two clamping sleeves are used to clamp the pipes 1. The two clamping sleeves respectively clamp one pipe 1, and the butt ends of the two pipes 1 are located inside the wind shield 4. The magnetoelectric heating rope 12 will generate heat when energized, thereby heating the pipes 1 inside the clamping sleeves, and the heat preservation cotton 11 reduces the heat loss inside the clamping sleeves and the wind shield 4.

[0030] In summary, this preheating and insulation device preheats the pipeline 1 by using the magnetoelectric heating rope 12 to generate heat, which is more convenient to operate and has a higher safety factor. The electric heating method makes it easier to regulate the temperature in the entire device. By setting the wind shield 4, the influence of wind during welding is reduced and the welding quality is improved.

[0031] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a sealing ring 15, which is arranged on the clamping sleeve, and the sealing ring 15 and the wind shield 4 are respectively located at two ends of the clamping ring.

[0032] When the pipe 1 is inserted into the clamping sleeve, the sealing ring 15 is pressed against the outer wall of the pipe 1 , which can not only clamp the pipe 1 more stably, but also prevent heat leakage from the gap between the pipe 1 and the clamping sleeve.

[0033] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a thermocouple protection box 5, which is arranged on the end plate ring 3 and located in the wind shield 4. A display 6 is arranged on the insulation board 2, and the display 6 is electrically connected to the thermocouple 10.

[0034] The function of the thermocouple protection box 5 is to protect the thermocouple 10 , and the magnetoelectric heating rope 12 can adjust the heating of the magnetoelectric heating rope 12 according to the temperature measured by the thermocouple 10 .

[0035] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, a thermocouple 10 is also included. The two clamping sleeves are respectively provided with a thermocouple 10 at one end, and the thermocouple 10 is located near the pipe weld.

[0036] The opening on the wind shield 4 is the passage for the welding gun of the welding equipment to enter the wind shield 4. In order to ensure that the pipeline is not affected by wind during welding, the wind shield 4 is set between the end plate rings 3 to ensure that the entire welding process inside the wind shield 4 is not affected by wind.

[0037] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, an end plate ring 3 is also included, and an end plate ring 3 is respectively arranged at one end of the two clamping sleeves.

[0038] The function of the end plate ring 3 is to facilitate the installation of the wind shield 4.

[0039] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, the insulation board 2 is an arc-shaped insulation board 2, one end of two adjacent insulation boards 2 are fitted together by a hinge 14, a fixing plate 7 is provided on the other end of each insulation board 2, and the fixing plates 7 on the two adjacent insulation boards 2 are fitted together by bolts 8.

[0040] Each clamping sleeve is composed of two semicircular insulation plates 2, which are rotatably connected together by hinges 14, and the fixing plates 7 on the insulation plates 2 are fixed together by bolts 8.

[0041] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, it also includes a cable protection tube, which is arranged in the thermal insulation cotton 11. The magnetic electric heating rope 12 is connected to a heating rope cable 16, and a part of the heating rope cable 16 is located in the thermal insulation cotton 11.

[0042] The function of the high temperature resistant cable protection tube 13 is to protect the heating rope cable 16 .

[0043] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, the magnetoelectric heating rope 12 is laid in a spiral shape in the clamping sleeve.

[0044] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 And attached Figure 5 As shown, a fixed handle 9 is provided on the outer wall of the wind shield 4.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A pipeline welding preheating and insulation device, characterized in that: It includes a windshield, several insulation plates and a magnetoelectric heating rope. The windshield is a cylindrical windshield. The insulation plates cooperate together to form a cylindrical clamping sleeve. Clamping sleeves are provided at both ends of the windshield. The magnetoelectric heating rope is laid in the clamping sleeve. Insulation cotton is provided in the clamping sleeve. The insulation cotton is located between the magnetoelectric heating rope and the clamping sleeve.

2. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: It also includes a sealing ring, which is arranged on the clamping sleeve, and the sealing ring and the wind shield are respectively located at two ends of the clamping ring.

3. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: It also includes a galvanic protection box, which is arranged on the wind shield and inside the wind shield, and a display is arranged outside the wind shield.

4. The pipeline welding preheating and heat preservation device according to claim 3, characterized in that: A thermocouple is also included, and the thermocouple is located at one end of the clamping sleeve, and the display is electrically connected to the thermocouple.

5. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: It also includes an end plate ring, and the end plate ring is arranged at both ends of the wind shield, and the clamping sleeve is arranged on the end plate ring.

6. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: It also includes a hinge, the insulation board is an arc-shaped insulation board, one end of two adjacent insulation boards are matched together by a hinge, a fixing plate is arranged on the other end of each insulation board, and the fixing plates on the two adjacent insulation boards are matched together by bolts.

7. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: It also includes a cable protection tube, which is arranged in the thermal insulation cotton. The magnetic electric heating rope is connected to a heating rope cable, and a part of the heating rope cable is located in the thermal insulation cotton.

8. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: The magnetoelectric heating rope is laid in a spiral shape in the clamping sleeve.

9. The pipeline welding preheating and heat preservation device according to claim 1, characterized in that: A fixed handle is arranged on the outer wall of the wind shield.

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