Riding type welding pull tube

Abstract

The utility model provides a riding type welding Rayon tube, which is characterized in that a Rayon tube seat is welded outside a header tube in a riding mode, a Rayon tube nozzle is arranged in the Rayon tube seat and is positioned inside the header tube, an inspection hole is arranged on a header, and an inspection hole joint and an inspection hole tube cap are arranged outside the inspection hole; the rear end of the Rayon tube base is connected with a heating surface tube in a welded mode, and a hollow structure, a sealing ring and a butt joint thread are arranged in the Rayon tube base. The upper part of the Rayon pipe nozzle is provided with a Rayon pipe neck, a throttling hole ring is arranged in the Rayon pipe nozzle, the lower part of the Rayon pipe nozzle is provided with a filter screen, a tail end cover and a high hexagonal nut, and the upper part of the Rayon pipe neck is provided with an end thread; according to the riding type welding Raymond pipe, the novel structural design is adopted, a traditional direct insertion type Raymond pipe installation structure is changed, the Raymond pipe base is welded to the outer portion of the collecting box pipe in a riding type mode, the installation hole diameter and the welding amount of the Raymond pipe on the collecting box pipe can be reduced, the service life of the Raymond pipe and the collecting box pipe is prolonged, and benefits are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler auxiliary equipment, in particular to a riding type welded Ramon tube. Background Art

[0002] The Ramon device is an important component of a forced circulation boiler. It is installed on the inlet distribution header of the boiler heating surface and plays the dual role of throttling to automatically adjust the cooling water flow of the heating surface pipes to ensure uniform distribution and restrict the entry of large particles of debris into the boiler heating surface. The Ramon tube seat of the traditional Ramon device passes through the header pipe wall and is welded to the header pipe by an insert welding method. The installation hole is relatively large and the filling and welding workload is large. During boiler commissioning and operation inspection, the Ramon nozzle needs to be removed with a wrench for cleaning. The Ramon tube seat is also prone to collision damage during removal. For this reason, the applicant designed the Ramon tube seat according to the demand and welded it to the header pipe by a riding welding method, which reduces the opening diameter of the header pipe and the welding workload, and extends the service life of the Ramon tube and the header pipe. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a riding-type welded Ramon tube, which welds the Ramon tube seat to the outside of the header tube in a riding-type manner, installs a Ramon tube nozzle in the Ramon tube seat and is located inside the header tube, an inspection hole is arranged on the header, and an inspection hole joint and an inspection hole pipe cap are installed outside the inspection hole; the heating surface pipe is welded and connected at the rear end of the Ramon tube seat, and a hollow structure, a sealing ring and a butt thread are arranged inside the Ramon tube seat; a Ramon tube neck is arranged on the upper part of the Ramon tube nozzle, a throttling hole ring is arranged inside, a filter screen, a tail end cover and a high hexagonal nut are arranged at the lower part, and an end thread is arranged on the upper part of the Ramon tube neck; the riding-type welded Ramon tube adopts a new structural design, changes the traditional straight-insert Ramon tube installation structure, and adopts a riding-type method to weld the Ramon tube base to the outside of the header tube, which can reduce the installation hole diameter and welding amount of the Ramon tube on the header tube, increase the service life of the Ramon tube and the header tube, and increase the efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A saddle-type welded Ramon tube comprises a Ramon tube seat, a Ramon tube nozzle, a header tube, a heating surface tube, an inspection hole, an inspection hole joint and an inspection hole cap, characterized in that: the saddle-type welded Ramon tube is provided with a Ramon tube seat, the Ramon tube seat is welded to the outside of the header tube, the heating surface tube is welded to the upper part of the Ramon tube seat, a Ramon tube nozzle is installed at the lower part of the Ramon tube seat, the Ramon tube nozzle is located inside the header tube, an inspection hole is provided on the tube wall of the header tube corresponding to the installation position of the Ramon tube nozzle, an inspection hole is provided on the outside of the inspection hole, and an inspection hole joint is provided on the inspection hole joint. An inspection hole cap is provided on the inspection hole joint.

[0006] Furthermore, the riding-type welded Ramon tube is provided with a Ramon tube seat, and the Ramon tube seat is provided with a hollow structure, a sealing ring and a butt thread. The hollow structure is a conical structure, the sealing ring is located in the middle, and the butt thread is located at the lower part of the sealing ring.

[0007] Furthermore, the riding-type welded Ramon tube is provided with a Ramon nozzle, and the structure of the Ramon nozzle is respectively provided with end threads, a Ramon tube neck, a throttling hole ring, a filter screen, a tail end cover and a high hexagonal nut from top to bottom. The Ramon tube neck is provided with end threads, and the throttling hole ring is provided at the inner center of the Ramon nozzle; the tail end cover is provided at the lower part of the filter screen, and the high hexagonal nut is provided at the lower part of the tail end cover.

[0008] Furthermore, the outer diameter of the filter screen is larger than the outer dimension of the Ramon tube neck.

[0009] The benefits of this application are:

[0010] 1. Riding welding Ramon tubes are constructed by riding welding to reduce the opening diameter and welding range on the header tube, making construction and maintenance easier;

[0011] 2. The riding type welded Ramon tube uses its own structure as a seal to change the force mode, avoiding the force of the traditional inserted Ramon tube being exerted by the welding part of the Ramon tube and the header tube, thereby improving safety and durability;

[0012] 3. The riding-type welded Ramon tube avoids the Ramon tube seat from extending into the interior of the header tube, which can effectively prevent the corrosion and damage of the Ramon tube base by water vapor and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 The local structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 3 The local structure of the utility model is shown in FIG. Figure 2 .

[0016] The markings in the figure are: 1. Ramon pipe seat; 1-1. Hollow structure; 1-2. Sealing ring; 1-3. Butt thread; 2. Ramon nozzle; 2-1. End thread; 2-2. Ramon pipe neck; 2-3. Filter screen; 2-4. High hexagonal nut; 2-5. Throttle hole ring; 2-6. Tail end cover; 3. Header pipe; 4. Heating surface pipe; 5. Inspection hole; 6. Inspection hole joint; 7. Inspection hole pipe cap. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0018] like Figure 1 As shown, a riding-type welded Ramon tube is shown, including a Ramon tube seat 1, a Ramon nozzle 2, a header tube 3, a heating surface tube 4, an inspection hole 5, an inspection hole joint 6 and an inspection hole cap 7. As shown in the figure, the riding-type welded Ramon tube is provided with a Ramon tube seat 1, and the Ramon tube seat 1 is welded to the outside of the header tube 3. The welding amount is small, the welding deformation caused by welding is also small, the probability of leakage will also be reduced, and processing and detection will also become simple and fast. The heating surface tube 4 is welded on the upper part of the Ramon tube seat 1, and the Ramon nozzle 2 is installed on the lower part of the Ramon tube seat 1. The Ramon nozzle 2 is located at the header Inside the box pipe 3, the Ramon nozzle 2 shown can seal the inside of the manifold pipe 3 through its own structure, and the pressure generated in the manifold pipe 3 will not be transmitted to the Ramon pipe socket 1, and the force on the Ramon pipe socket 1 will not be transmitted to the Ramon nozzle 2. An inspection hole 5 is provided on the pipe wall of the manifold pipe 3 corresponding to the installation position of the Ramon nozzle 2, and the Ramon nozzle 2 can be replaced and maintained through the inspection hole 5. An inspection hole joint 6 is provided outside the inspection hole 5, and an inspection hole cap 7 is provided on the inspection hole joint 6. The condition of the Ramon nozzle 2 can be conveniently observed by opening the inspection hole cap 7.

[0019] like Figure 2 As shown, the riding-type welded Ramon tube is provided with a Ramon tube seat 1. The Ramon tube seat 1 is provided with a structure having a hollow structure 1-1, a sealing ring 1-2 and a docking thread 1-3. The hollow structure 1-1 is a conical structure, which is manufactured by machine tool processing. The sealing ring 1-2 is located in the middle, and realizes internal sealing when the Ramon tube nozzle 2 is installed. The docking thread 1-3 is located at the lower part of the sealing ring 1-2, and is used when the Ramon tube nozzle 2 is installed.

[0020] like Figure 3 As shown, the riding-type welded Ramon tube is provided with a Ramon nozzle 2. The structure of the Ramon nozzle 2 is respectively provided with an end thread 2-1, a Ramon tube neck 2-2, a throttling hole ring 2-5, a filter screen 2-3, a tail end cover 2-6 and a high hexagonal nut 2-4 from top to bottom. The Ramon tube neck 2-2 is provided with an end thread 2-1, and the throttling hole ring 2-5 is arranged at the inner center of the Ramon nozzle 2; the tail end cover 2-6 is arranged at the lower part of the filter screen 2-3, and the high hexagonal nut 2-4 is arranged at the lower part of the tail end cover 2-6; the outer diameter of the filter screen 2-3 is larger than the outer dimension of the Ramon tube neck 2-2. After the installation is completed, the Ramon nozzle 2 forms a closure to the inner wall of the manifold tube 3, so that the pressure generated in the manifold tube 3 will not be transmitted to the Ramon tube seat 1.

[0021] The above is only a preferred embodiment of the present invention and does not constitute any other limitation on the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A riding-type welded Ramon tube, comprising a Ramon tube seat (1), a Ramon tube nozzle (2), a header tube (3), a heating surface tube (4), an inspection hole (5), an inspection hole joint (6) and an inspection hole cap (7), characterized in that: The Ramon tube seat (1) is welded to the outside of the header tube (3); a heating surface tube (4) is welded to the upper part of the Ramon tube seat (1); a Ramon tube nozzle (2) is installed at the lower part of the Ramon tube seat (1); the Ramon tube nozzle (2) is located inside the header tube (3); an inspection hole (5) is provided on the tube wall of the header tube (3) corresponding to the installation position of the Ramon tube nozzle (2); an inspection hole joint (6) is provided outside the inspection hole (5); and an inspection hole pipe cap (7) is provided on the inspection hole joint (6).

2. The riding type welded Ramon tube according to claim 1, characterized in that: The riding-type welded Ramon tube is provided with a Ramon tube seat (1), and the Ramon tube seat (1) is provided with a structure comprising a hollow structure (1-1), a sealing ring (1-2) and a butt thread (1-3), the hollow structure (1-1) being a conical structure, the sealing ring (1-2) being located in the middle, and the butt thread (1-3) being located at the lower part of the sealing ring (1-2).

3. The riding type welded Ramon tube according to claim 1, characterized in that: The riding-type welded Ramon tube is provided with a Ramon nozzle (2), and the structure of the Ramon nozzle (2) is respectively provided with an end thread (2-1), a Ramon tube neck (2-2), a throttle hole ring (2-5), a filter screen (2-3), a tail end cover (2-6) and a high hexagonal nut (2-4) from top to bottom; the Ramon tube neck (2-2) is provided with an end thread (2-1), and the throttle hole ring (2-5) is arranged at the center of the Ramon tube nozzle (2); the tail end cover (2-6) is arranged below the filter screen (2-3), and the high hexagonal nut (2-4) is arranged below the tail end cover (2-6).

4. The riding type welded Ramon tube according to claim 3, characterized in that: The outer diameter of the filter screen (2-3) is greater than the outer dimension of the Ramon tube neck (2-2).

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