Device for adjustably welding end socket and connecting pipe and using method of device

Abstract

The invention discloses a device for adjustably welding an end socket and a connecting pipe, comprising: a support assembly comprising: a movable valve, the center of which is provided with a central through hole for allowing a forge piece to pass through the central through hole and fixing the forge piece, and the periphery of the movable valve is also provided with a plurality of peripheral through holes; each supporting device comprises a connecting rod penetrating through one of the surrounding through holes of the movable valve, a first pair of supporting legs with one ends connected to the two ends of the connecting rod respectively, and supporting rods connected to the other ends of the first pair of supporting legs through connecting pieces respectively; one end of the second pair of supporting legs is connected to the supporting rod; the pair of heat insulation pads are respectively connected to the other ends of the second pair of supporting legs; the angle fixer comprises a fixing rod and a third pair of supporting legs; the base assembly comprises a base body; the base supporting plate is located at the bottom of the device; the base wheels are located below the base supporting plate; and an angle indicator; and methods of use thereof. According to the device and the using method thereof, the sealing head and the connecting pipe can be welded at any angle.

Description

Technical Field

[0001] The present application generally relates to the technical field of pressure vessel manufacturing, and more particularly to a device for adjustable welding of a head and a pipe and a method for using the device. Background Art

[0002] In the field of pressure vessel manufacturing for petroleum, fertilizers, etc., the head is a kind of boiler component in the pressure vessel, usually welded at both ends of the pressure vessel or the end of the pipeline, and is used to seal the end of the pressure vessel to isolate the internal and external media. The connecting pipe refers to a short pipe leading out from the opening of the pressure vessel, which is used to install instruments and safety relief devices for measuring temperature, pressure, liquid level, etc., or used as material inlet and outlet, manhole and handhole, etc. However, when welding the head and the connecting pipe, the angle positioning requirements of the welding point are often difficult to meet. In order to solve this problem, a device for adjustable welding of the head and the connecting pipe and a method of using the device are needed, so that the head and the connecting pipe can be welded at any angle to meet different welding requirements. Summary of the invention

[0003] In view of the above technical problems, the present disclosure proposes a device for adjustable welding of a head and a connecting pipe, characterized in that it comprises: a support assembly, the support assembly comprises: a movable valve, the center of the movable valve has a central through hole, which is used to allow a forging to pass through the central through hole and fix the forging so that the longitudinal axis of the forging coincides with the longitudinal axis of the connecting pipe, and the movable valve is also provided with a plurality of peripheral through holes around it, and the plurality of peripheral through holes are circumferentially distributed around the movable valve at the same intervals; a plurality of support devices, the support devices comprising: a connecting rod, the connecting rod passes through one of the plurality of peripheral through holes of the movable valve, a first pair of legs, one end of the first pair of legs is respectively connected to the two ends of the connecting rod, and a support rod, the support rod is respectively connected to the ends of the first pair of legs through a connecting piece. the other end; a second pair of legs, one ends of the second pair of legs are respectively connected to the support rod through the connecting piece; a pair of thermal insulation pads, the pair of thermal insulation pads are respectively connected to the other ends of the second pair of legs against the inner wall of the connecting pipe; an angle fixer, the angle fixer includes a fixing rod and a third pair of legs, the third pair of legs are respectively positioned on both sides of the fixing rod, for auxiliary support of the forging and fixing the angle between the forging and the ground; a base assembly, the base assembly includes; a base support plate, the base support plate is located at the bottom of the device; base wheels, the base wheels are located below the base support plate, for enabling the device to slide along the ground; and an angle indicator, the angle indicator is located at the center of the base assembly, for indicating the angle between the forging and the ground.

[0004] In a preferred embodiment, the plurality of peripheral through holes are symmetrical with the central through hole as the center.

[0005] In a preferred embodiment, the number of the plurality of peripheral through holes is 8.

[0006] In a preferred embodiment, the forging and the connecting rod are parallel to each other.

[0007] In a preferred embodiment, the third pair of legs are respectively fixed to both sides of the fixing rod by bolts.

[0008] In a preferred embodiment, one end of the forging is fixed to the base assembly by welding.

[0009] In a preferred embodiment, the base support plate is rectangular in shape.

[0010] In a preferred embodiment, the number of the base wheels is 4, and the 4 base wheels are distributed at the 4 corners of the base support plate.

[0011] In a preferred embodiment, the base wheels are further provided with a base brake valve for stopping the base wheels from moving.

[0012] The present disclosure also proposes a method for using the device for adjustable welding of a head and a connecting pipe, which includes the following steps: S1, passing the forging through the central through hole of the movable valve so that one end of the forging abuts against the center of the base assembly; S2, adjusting the forging so that the angle between the forging and the ground is equal to the required installation angle; S3, adjusting the orientation of the first pair of legs and the second pair of legs relative to the connecting rod so that the pair of thermal insulation pads abut against the inner wall of the connecting pipe; S4, fixing the first pair of legs, the second pair of legs and the connecting rod together by welding to support the inner wall of the connecting pipe; S5, making one end of the third pair of legs abut against the forging, and the other end abut against the ground; and S6, welding the connecting pipe 8 to the head.

[0013] Compared with the prior art, the beneficial effects of the present disclosure are as follows: the technical solution of the present disclosure enables the welding of the end cap and the pipe at any angle, thus avoiding the problem of inaccurate welding angles between the end cap and the pipe, improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The novel features of the present application are specifically described in the appended claims. The features and advantages of the present application will be better understood by referring to the following detailed description and drawings that describe illustrative embodiments in which the principles of the present application are utilized. The drawings are only used for the purpose of illustrating the embodiments and should not be considered as limiting the present application. Also, the same reference numerals are used throughout the drawings to represent the same elements. In the drawings:

[0015] Figure 1 A schematic diagram of a device for adjustable welding of a sealing head and a pipe according to an exemplary embodiment of the present disclosure is shown;

[0016] Figure 2 Another schematic diagram of a device for adjustable welding of a sealing head and a pipe according to an exemplary embodiment of the present disclosure is shown;

[0017] Figure 3 A schematic diagram of a movable valve of a device for adjustable welding of a sealing head and a connecting pipe according to an exemplary embodiment of the present disclosure is shown;

[0018] Figure 4 A schematic diagram showing a base assembly of a device for adjustable welding of a sealing head and a pipe according to an exemplary embodiment of the present disclosure; and

[0019] Figure 5 A flow chart of using a device for adjustable welding of a sealing head and a nozzle according to an exemplary embodiment of the present disclosure is shown.

[0020] Explanation of the reference numerals: 1-movable valve, 2-support device, 3-angle holder, 4-angle indicator, 5-base support plate, 6-base wheel, 7-forging, 8-pipe connection, 9-end cap. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure, and to enable the scope of the present disclosure to be fully conveyed to those skilled in the art. In the following detailed description, there is nothing intended to indicate that any particular component, feature or step is essential for the present application. Those skilled in the art will appreciate that various features or steps can be substituted or combined with each other without departing from the scope of the present disclosure.

[0022] Figure 1A schematic diagram of a device for adjustable welding of a head and a pipe according to an exemplary embodiment of the present disclosure is shown. In one embodiment, the present disclosure provides a device for adjustable welding of a head and a pipe, characterized in that it can include a support assembly, a base assembly, and an angle indicator. The support assembly can include a movable valve 1, a plurality of support devices 2, and an angle fixer 3. Figure 2 Another schematic diagram of a device for adjustable welding of a sealing head 9 and a pipe 8 according to an exemplary embodiment of the present disclosure is shown. The center of the movable valve 1 may have a central through hole for passing a forging through the central through hole and fixing the forging 7 so that the longitudinal axis of the forging 7 coincides with the longitudinal axis of the pipe 8. In a preferred embodiment, a support height scale may be provided on the forging 7 for obtaining the support height of the forging 7. The movable valve 1 may also have a plurality of peripheral through holes around it, and the plurality of peripheral through holes are circumferentially distributed around the movable valve 1 at the same interval. The supporting device 2 may include a connecting rod, which may pass through one of the plurality of peripheral through holes of the movable valve 1; a first pair of legs, one end of which may be connected to the two ends of the connecting rod respectively; a supporting rod, which may be connected to the other end of the first pair of legs respectively through a connecting piece; a second pair of legs, one end of which may be connected to the supporting rod respectively through the connecting piece; and a pair of thermal insulation pads, which may be connected to the other end of the second pair of legs respectively against the inner wall of the pipe. In other embodiments, the connecting member may be a threaded rod, a screw, a bolt, a nut, or any type of connecting member deemed appropriate by a person skilled in the art. The angle fixer 3 may include a fixing rod and a third pair of legs, and the third pair of legs may be positioned on both sides of the fixing rod, respectively, to assist in supporting the forging 7 and fixing the angle between the forging 7 and the ground. In a preferred embodiment, the third pair of legs are fixed on both sides of the fixing rod by bolts. One end of the forging 7 may be fixed to the base assembly by welding.

[0023] Figure 3A schematic diagram of a movable valve of a device for adjustable welding of a head 9 and a connecting pipe 8 according to an exemplary embodiment of the present disclosure is shown. The center of the movable valve 1 has a central through hole, which is used to allow a forging 7 to pass through the central through hole and fix the forging 7 so that the longitudinal axis of the forging 7 coincides with the longitudinal axis of the connecting pipe 8. The movable valve 1 may also have a plurality of peripheral through holes around it, and the plurality of peripheral through holes are circumferentially distributed around the movable valve 1 at the same interval. In a preferred embodiment, the plurality of peripheral through holes are symmetrical with the central through hole as the center. In a preferred embodiment, the number of the plurality of peripheral through holes may be 8. In other embodiments, the number of the plurality of peripheral through holes may be 4, 6, 10, 12, 14 or any other number deemed appropriate by a person skilled in the art. In a preferred embodiment, the forging 7 may be parallel to the connecting rod. The support rod and the connecting rod may be parallel to each other. Figure 4 A schematic diagram of a base assembly of a device for adjustable welding of a head 9 and a pipe 8 according to an exemplary embodiment of the present disclosure is shown. The base assembly may include a base support plate 5, which may be located at the bottom of the device; and a base wheel 6, which may be located below the base support plate 5, for enabling the device to slide along the ground and for adjusting the angle between the forging 7 and the ground. In one embodiment, the shape of the base support plate 5 may be rectangular, and the number of the base wheels 6 may be 4, and the 4 base wheels 6 may be distributed at the 4 corners of the base support plate 5. In a preferred embodiment, the shape of the base support plate 5 may be rectangular. In a preferred embodiment, the base assembly may also include a base brake valve, which may be installed on the base wheel 6 to fix the base assembly. The angle indicator 4 may be located at the center of the base assembly to indicate the angle between the forging 7 and the ground.

[0024] Figure 5A flow chart of using a device for adjustable welding of a head 9 and a pipe 8 according to an exemplary embodiment of the present disclosure is shown. The present disclosure also proposes a method for using the device, which may include the following steps S1-S6. In S1, the forging 7 may be passed through the central through hole of the movable valve 1 so that one end of the forging 7 abuts against the center of the base assembly. In a preferred embodiment, the forging 7 may be parallel to the connecting rod. One end of the forging 7 may be fixed to the base assembly by welding. In S2, the forging 7 may be adjusted so that the angle between the forging 7 and the ground is equal to the desired installation angle. In a preferred embodiment, the angle between the forging 7 and the ground may be obtained by an angle indicator 3, and the forging 7 may be adjusted so that the angle is equal to the desired installation angle of the pipe 8, or equal to the inclination angle of the pipe 8. In S3, the orientation of the first pair of legs and the second pair of legs relative to the connecting rod may be adjusted so that the pair of thermal insulation pads abut against the inner wall of the pipe 8, for firmly fixing the inner wall of the pipe 8. In S4, the first pair of legs, the second pair of legs and the connecting rod may be fixed together by welding to support the inner wall of the pipe 8. In S5, one end of the third pair of legs may be placed against the forging 7 and the other end may be placed against the ground to support the forging 7. In S6, the pipe 8 may be welded to the end cap 9.

[0025] Compared with the prior art, the technical solution of the present disclosure realizes that the end cap and the pipe can be welded at any angle, solving the technical problem that the angle support of the end cap and the pipe is difficult to meet during the installation process. According to the technical solution of the present disclosure, it can be applied to the welding of pipes and end caps with different diameters. At the same time, according to the technical solution of the present disclosure, it can ensure the angle support of the pipe when it is obliquely inserted, avoiding errors in the assembly process of the end cap and the pipe.

[0026] It should be understood that the systems and / or methods in various embodiments provided in the present disclosure may be combined, modified and / or changed to form new technical solutions. In the absence of creative work, these technical solutions should also be included in the scope of protection claimed in the present disclosure.

[0027] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present disclosure in detail and are not intended to limit the present disclosure. The embodiments in the present disclosure can be practiced without these specific examples. In some embodiments, methods, structures and / or techniques known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present disclosure.

[0028] Although preferred embodiments of the present disclosure have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will now expect a variety of changes, modifications and substitutions without departing from the present disclosure. It should be understood that the various alternatives to the embodiments of the present disclosure described herein are optionally used to implement the present disclosure. It is intended to define the scope of the present disclosure by the claims, and thus encompass methods and structures and their equivalents within the scope of these claims.

Claims

1. A device for adjustable welding of a head and a pipe, characterized in that: include: A support assembly, the support assembly comprising: A movable valve, wherein the movable valve has a central through hole at its center, for passing a forging through the central through hole and fixing the forging so that the longitudinal axis of the forging coincides with the longitudinal axis of the connecting pipe, and the movable valve also has a plurality of peripheral through holes around it, and the plurality of peripheral through holes are circumferentially distributed around the movable valve at the same intervals; A plurality of supporting devices, the supporting devices comprising: a connecting rod passing through one of the plurality of peripheral through holes of the movable valve, a first pair of legs, one end of each of the first pair of legs being connected to two ends of the connecting rod, A support rod, each of which is connected to the other end of the first pair of legs through a connecting piece; a second pair of legs, one end of the second pair of legs being respectively connected to the support rod through the connecting member; a pair of heat-insulating pads, the pair of heat-insulating pads abutting against the inner wall of the connecting pipe and respectively connected to the other ends of the second pair of supporting legs; An angle fixer, the angle fixer comprising a fixing rod and a third pair of legs, the third pair of legs being respectively positioned on both sides of the fixing rod, for auxiliary support of the forging and fixing the angle between the forging and the ground; A base assembly, the base assembly comprising: a base support plate, the base support plate being located at the bottom of the device; Base wheels, the base wheels being located below the base support plate and configured to enable the device to slide along the ground; and An angle indicator is located at the center of the base assembly and is used to indicate the angle between the forging and the ground.

2. The device according to claim 1, characterized in that The plurality of peripheral through holes are symmetrical with the central through hole as the center.

3. The device according to claim 1, characterized in that The number of the plurality of peripheral through holes is 8.

4. The device according to claim 1, characterized in that The forging piece and the connecting rod are parallel to each other, and the supporting rod and the connecting rod are parallel to each other.

5. The device according to claim 1, characterized in that The third pair of legs are respectively fixed on both sides of the fixing rod by bolts.

6. The device according to claim 1, characterized in that One end of the forging is fixed to the base assembly by welding.

7. The device according to claim 1, characterized in that The base support plate is in a rectangular shape.

8. The device according to claim 7, characterized in that The number of the base wheels is 4, and the 4 base wheels are distributed at the 4 corners of the base support plate.

9. The device according to claim 7, characterized in that The base wheels are also provided with a base brake valve for stopping the base wheels from moving.

10. A method of using the device according to claim 1, the method comprising the steps of: S1, passing the forging through the central through hole of the movable valve so that one end of the forging abuts against the center of the base assembly; S2, adjusting the forging so that the angle between the forging and the ground is equal to the required installation angle; S3, adjusting the positions of the first pair of legs and the second pair of legs relative to the connecting rod so that the pair of thermal insulation pads abut against the inner wall of the connecting pipe; S4, fixing the first pair of legs, the second pair of legs and the connecting rod together by welding to support the inner wall of the connecting pipe; S5, placing one end of the third pair of legs against the forging and the other end against the ground; as well as S6, welding the connecting pipe to the sealing head.

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