Installation equipment for a high-pressure ammonia preheater sealing plate

Abstract

This utility model discloses an installation device for a high-pressure ammonia preheater sealing plate. It is characterized by comprising a cross-groove steel frame, an adjustment component, and a fixing component. The ends of the cross-groove steel frame are respectively provided with a first strip-shaped hole and a second strip-shaped hole. The second strip-shaped hole is close to the center of the cross-groove steel frame. The adjustment component passes through the second strip-shaped hole and can reciprocate along the direction of the second strip-shaped hole. The fixing component passes through the first strip-shaped hole. The layered design of the double strip-shaped holes facilitates equipment installation, and the fixing component passing through the first strip-shaped hole enables coarse positioning of the equipment. The second strip-shaped hole allows the adjustment component to move along the strip-shaped hole. During the sealing plate welding stage, the adjustment component applies the same downward pressure as the flat cover installation, allowing the weld to form under actual stress, thus improving weld quality.

Description

Technical Field

[0001] This utility model relates to the field of preheater technology, and in particular to an installation device for a sealing plate of a high-pressure ammonia preheater. Background Technology

[0002] The sealing plate of the high-pressure ammonia preheater needs to be welded to the reverse flange before the flat cover is installed. During the welding process, the sealing plate lacks the same downward pressure control as when the flat cover is installed, which leads to a mismatch between the stress state of the weld and the actual working conditions. As a result, cracks often appear in the weld of the sealing plate or leakage occurs after the sealing plate is installed during the flat cover installation process. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an installation device for a high-pressure ammonia preheater sealing plate. The device is installed on the reverse flange of the high-pressure ammonia preheater and is used for the installation of the high-pressure ammonia preheater sealing plate. By adjusting the components, the device applies the same downward pressure as the flat cover installation during the sealing plate welding stage, so that the weld is formed under actual stress.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an installation device for a high-pressure ammonia preheater sealing plate, comprising a cross-groove steel frame, an adjustment component, and a fixing component. The ends of the cross-groove steel frame are respectively provided with a first strip hole and a second strip hole. The second strip hole is close to the center of the cross-groove steel frame. The adjustment component passes through the second strip hole and can reciprocate along the direction of the second strip hole. The fixing component passes through the first strip hole.

[0005] Furthermore, the adjustment assembly includes an adjustment rod, an adjustment sleeve, and an adjustment nut, wherein the adjustment rod and the adjustment sleeve are connected by threads, and the adjustment sleeve and the adjustment nut are connected by threads.

[0006] Furthermore, the adjusting sleeve is a boss structure with a threaded hole, and the adjusting sleeve is threaded on both the inner and outer sides.

[0007] Furthermore, the upper end of the adjusting sleeve is annular, with external threads on the outer side of the annulus and internal threads on the inner side of the adjusting sleeve.

[0008] Furthermore, the axial height of the adjusting sleeve's annulus is greater than the axial height of the adjusting nut.

[0009] Furthermore, the lower end of the adjustment sleeve is square.

[0010] Furthermore, the adjusting sleeve can reciprocate along the direction of the second strip hole.

[0011] Furthermore, the adjusting lever includes a handle, a screw, and a pressure head for pressing the sealing plate. The top end of the screw is connected to the handle, and the bottom end of the screw is connected to the pressure head.

[0012] Furthermore, the screw is detachably connected to the handle, and the screw is welded and fixed to the pressure head.

[0013] Furthermore, the fixing assembly includes a fixing stud and a nut, which are connected by threads, and a fixing bolt can pass through the first strip hole and be locked onto the reverse flange.

[0014] The beneficial effects of this utility model are as follows:

[0015] The layered design with double slots facilitates equipment installation. The fixing components pass through the first slot for coarse positioning. The second slot allows the adjusting components to move along the slots to adjust their position. The adjusting sleeve is then adjusted, and the adjusting nut is used to lock the adjusting components in place. This causes the pressure head of the adjusting rod to press against the outer edge of the sealing plate. Based on the preload required for the installation of the high-pressure ammonia preheater flat cover, the pressure head is driven to press down by turning the handle to provide the same downward pressure. This creates a deformation constraint on the sealing plate that is completely consistent with the actual working conditions, improving the weld quality and solving the problems that often occur during the installation of the flat cover, such as cracks in the sealing plate weld or leakage after assembly.

[0016] The adjustable components also allow for adjustment of the distance between the cross-groove steel frame and the sealing plate, leaving an appropriate gap to facilitate welding of the sealing plate. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a structural diagram of the installation equipment for the high-pressure ammonia preheater sealing plate of this utility model;

[0019] Figure 2 This is a structural diagram of the cross-groove steel frame of this utility model;

[0020] Figure 3 This is a structural diagram of the adjustment component of this utility model;

[0021] Figure 4 This is a side view of the installation equipment for the high-pressure ammonia preheater sealing plate of this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of Part A;

[0023] Figure 6 for Figure 4 Enlarged view of Part B;

[0024] Figure 7 for Figure 6 Enlarged image;

[0025] Figure 8 This is a side view of the flat cover installation of the high-pressure ammonia preheater of this utility model.

[0026] Explanation of symbols in the attached diagram: 1. Cross-groove steel frame; 10. First strip hole; 11. Second strip hole; 2. Adjusting assembly; 20. Adjusting rod; 200. Handle; 201. Screw; 202. Pressure head; 21. Adjusting sleeve; 210. Internal thread; 211. External thread; 22. Adjusting nut; 3. Fixing assembly; 30. Cylinder; 31. Reverse flange; 32. Sealing plate; 33. Flat cover; 34. Fixing stud; 35. Nut; 36. Weld. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 and Figure 2 As shown, an installation device for a high-pressure ammonia preheater sealing plate includes a cross-groove steel frame 1, an adjustment component 2, and a fixing component 3. The ends of the cross-groove steel frame 1 are respectively provided with a first strip hole 10 and a second strip hole 11. The second strip hole 11 is close to the center of the cross-groove steel frame. The adjustment component 2 passes through the second strip hole 11 and can move back and forth along the direction of the second strip hole 11. The fixing component 3 passes through the first strip hole 10.

[0029] Specifically, such as Figure 1 and Figure 4 As shown, the sealing plate 32 is embedded in the groove of the reverse flange 21. The cross-groove steel frame 1 is fixed to the reverse flange 31 on the cylinder 30 by the fixing component 3, and is fixed to the sealing plate 32 on the cylinder 30 by the adjusting component 2. A weld 36 is formed between the sealing plate 32 and the reverse flange 21.

[0030] The layered design with double strip holes facilitates equipment installation. The fixing component 3 passes through the first strip hole 10 to achieve coarse positioning of the equipment. The second strip hole 11 allows the adjusting component 2 to move along the strip hole to adjust its position. The adjusting component can also adjust the distance between the cross-groove steel frame and the sealing plate, leaving an appropriate gap to facilitate welding of the sealing plate.

[0031] like Figure 3 and Figure 7As shown, the adjustment assembly 2 includes an adjustment rod 20, an adjustment sleeve 21, and an adjustment nut 22. The adjustment rod 20 and the adjustment sleeve 21 are connected by threads, and the adjustment sleeve 21 and the adjustment nut 22 are connected by threads.

[0032] like Figure 6 As shown, the adjusting sleeve 21 can reciprocate along the direction of the second strip hole 11, and the position of the adjusting component 2 is locked by the adjusting nut 22, and the adjusting rod 20 is pressed down to contact the outer edge of the sealing plate 32.

[0033] like Figure 3 and Figure 7 As shown, the adjusting sleeve 21 is a boss structure with a threaded hole, and the adjusting sleeve 21 has threads on both the inner and outer sides.

[0034] like Figure 3 , Figure 6 and Figure 7 As shown, the upper end of the adjusting sleeve 21 is annular, with an external thread 211 on the outer side of the annulus and an internal thread 210 on the inner side of the adjusting sleeve 21. The annular portion of the upper end of the adjusting sleeve 21 can pass through the second strip hole 11 and can reciprocate along the direction of the second strip hole 11. The outer side of the annulus of the adjusting sleeve 21 and the adjusting nut 22 are located on one side of the second strip hole 11. The external thread 211 of the adjusting sleeve 21 and the adjusting nut 22 form a first-stage thread pair, which is used to lock the position of the adjusting assembly 2. The internal thread 210 of the adjusting sleeve 21 and the screw 201 of the adjusting pressure rod 20 form a second-stage thread pair, which is used to drive the pressure head 202 to press down the sealing plate 32. Tightening the handle 200 of the adjusting pressure rod 20 can make the pressure head 202 of the adjusting pressure rod 20 press the sealing plate 32 of the high-pressure ammonia preheater.

[0035] like Figure 3 As shown, the axial height of the adjusting sleeve 21 is greater than the axial height of the adjusting nut 22, ensuring that after the adjusting nut 22 is screwed in, the adjusting sleeve 21 still retains at least 2-3 turns of thread allowance to prevent locking and allow for subsequent secondary adjustments.

[0036] To further explain, the lower end of the adjusting sleeve 21 is square, and the lower end of the adjusting sleeve 21 is engaged with the cross-groove steel frame 1, so that the adjusting sleeve 21 can pass through and be fixed on one side of the second strip hole 11.

[0037] The adjusting sleeve 21 can move back and forth along the direction of the second strip hole 11.

[0038] like Figure 3 and Figure 6 As shown, the adjusting lever 20 includes a handle 200, a screw 201, and a pressure head 202 for pressing the sealing plate 32. The top end of the screw 201 is connected to the handle 200, and the bottom end of the screw 201 is connected to the pressure head 202.

[0039] To further explain, the screw 201 is detachably connected to the handle 200, and the screw 201 is welded and fixed to the pressure head 202. The detachable handle 200 facilitates the screw 201 to pass through the adjusting sleeve 21 and the second strip hole 11.

[0040] like Figure 4 and Figure 8 As shown, the fixing component 3 includes a fixing stud 34 and a nut 35, which are connected by threads. The fixing bolt 34 can pass through the first strip hole 10 and be locked onto the reverse flange 31.

[0041] like Figure 8 As shown, after the sealing plate 32 is welded, unscrew the nut 35, remove the cross-groove steel frame 1 and the adjustment component 2, and then install the flat cover 33.

[0042] In this embodiment, the sealing plate 32 is first embedded into the groove of the reverse flange 21. Then, the adjusting sleeve 21 is assembled onto one side of the second slot 11. The adjusting nut 22 is screwed into the outside of the adjusting sleeve 21. The handle 200 on the adjusting rod 20 is removed, and the adjusting rod 20 is screwed into the inside of the adjusting sleeve 21. Then, the handle 200 is installed. The cross-groove steel frame 1 of the high-pressure ammonia preheater sealing plate installation device is then assembled onto the bolts 34 of the reverse flange, and the nut 35 is screwed into the bolts 34 to contact the cross-groove steel frame 1. The position of the adjusting assembly 2 is adjusted so that the pressure head 202 of the adjusting rod 20 presses against the outer edge of the sealing plate 32. According to the pre-tightening force required for the installation of the high-pressure ammonia preheater flat cover 33, the handle 200 of the adjusting rod 20 is screwed to provide the same downward pressure. Then, the sealing plate 32 is welded. After welding, the device is removed, and the flat cover 33 is installed. Using this device ensures that the weld 36 will not crack after the flat cover 33 is installed.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An installation device for a high-pressure ammonia preheater sealing plate, characterized in that, The device includes a cross-groove steel frame, an adjustment component, and a fixing component. The ends of the cross-groove steel frame are respectively provided with a first strip hole and a second strip hole. The second strip hole is close to the center of the cross-groove steel frame. The adjustment component passes through the second strip hole and can move back and forth along the direction of the second strip hole. The fixing component passes through the first strip hole.

2. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod, an adjustment sleeve, and an adjustment nut. The adjustment rod and the adjustment sleeve are connected by threads, and the adjustment sleeve and the adjustment nut are connected by threads.

3. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 2, characterized in that: The adjusting sleeve is a boss structure with a threaded hole, and the adjusting sleeve is threaded on both the inner and outer sides.

4. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 2, characterized in that: The upper end of the adjusting sleeve is annular, with external threads on the outer side of the annulus and internal threads on the inner side of the adjusting sleeve.

5. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 4, characterized in that: The axial height of the adjusting sleeve's annulus is greater than the axial height of the adjusting nut.

6. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 2, characterized in that: The lower end of the adjustment sleeve is square.

7. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 2, characterized in that: The adjusting sleeve can reciprocate along the direction of the second strip hole.

8. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 2, characterized in that: The adjusting lever includes a handle, a screw, and a pressure head for pressing the sealing plate. The top end of the screw is connected to the handle, and the bottom end of the screw is connected to the pressure head.

9. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 8, characterized in that: The screw is detachably connected to the handle, and the screw is welded and fixed to the pressure head.

10. The installation equipment for the high-pressure ammonia preheater sealing plate according to claim 1, characterized in that: The fixing assembly includes a fixing stud and a nut, which are connected by threads. The fixing bolt can pass through the first strip hole and be locked onto the reverse flange.

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