Leveling supporting structure for installation of turbine expander of ocean platform

Abstract

The utility model discloses a leveling support structure for installation of a turbine expander of an ocean platform, which comprises a support pad pier and a grouting box, the grouting box is arranged on the support pad pier, a base support plate is arranged on the support pad pier, a leveling bolt is connected between the base support plate and the support pad pier, and the leveling bolt is arranged on the grouting box. The end, away from the leveling bolt, of the base supporting plate abuts against a turbo expander base supporting block, and a horizontal limiting bolt assembly block and an expander fastening bolt are arranged between the turbo expander base supporting block and the supporting cushion pier. According to the leveling supporting structure for installation of the turbine expander on the ocean platform, the grouting box is placed on the supporting pad pier, the turbine expander is placed on the base supporting plate above the grouting box, and the levelness and the coaxiality of installation of the turbine expander are adjusted through the leveling bolt and the horizontal limiting bolt module. After the installation precision meets the requirement, grouting is conducted in the grouting box, and then the turbo expander is fixed.

Description

Technical Field

[0001] The utility model belongs to the technical field of installation and leveling of large-scale dynamic equipment on an ocean platform, in particular to a leveling support structure for installing a turbine expander on an ocean platform. Background Art

[0002] As the core equipment in a unit, the turboexpander is a high-speed rotating device. Its leveling, installation, and alignment with the generator shaft are crucial for the unit's normal operation and maintenance. Only by ensuring the turboexpander is level and coaxial as required can we prevent the generation of adverse additional forces. Furthermore, the turboexpander's mounting foundation must possess sufficient rigidity and damping to ensure the unit maintains the correct position and operating conditions for a long time.

[0003] For large turbine expanders, due to their large equipment mass and large base contact area, they require many supporting and fixed connection points. To ensure the horizontality and high installation accuracy of the upper surface of the equipment's installation base, the upper surface of the base needs to be machined to a high degree, which is often limited by the capabilities of the processing equipment. Outsourcing processing increases costs and construction cycles.

[0004] Therefore, it is urgent to design a leveling support structure for installing a turbine expander on an offshore platform to solve the above-mentioned problem of difficulty in ensuring the horizontality and height accuracy during the installation of the turbine expander on the base. Utility Model Content

[0005] In order to solve the technical problem mentioned in the background technology that the large-scale turbine expander has a large equipment mass, a large base contact area, and requires many supporting and fixing connection points. To ensure the horizontality and height installation accuracy of the upper surface of the equipment's installation base, the upper surface of the base needs to be subjected to high mechanical processing, which is often limited by the capacity of the processing equipment, a leveling support structure for the installation of an offshore platform turbine expander is provided to solve the problem that the horizontality and height accuracy of the turbine expander are difficult to ensure during the installation process on the base.

[0006] To achieve the above objectives, the specific technical solutions of the leveling support structure for installing a turbine expander on an offshore platform of the present invention are as follows:

[0007] A leveling support structure for installing a turbine expander on an offshore platform includes a support pad and a grouting box. The grouting box is arranged on the support pad. A base support plate is provided on the support pad. Leveling bolts are connected between the base support plate and the support pad. One end of the base support plate away from the leveling bolts abuts against a turbine expander base support block. A horizontal limit bolt assembly and expander fastening bolts are provided between the turbine expander base support block and the support pad.

[0008] Furthermore, the supporting pad includes a top plate and a web plate, the web plate is welded to the top plate, and a plurality of reinforcing ribs are welded between the web plate and the top plate.

[0009] Furthermore, a grouting box is abutted on the top plate, and the grouting box is filled with epoxy grouting material to support the base support plate.

[0010] Furthermore, the leveling bolt includes a bolt rod and a nut, the nut is welded to the top plate, the bolt rod is screwed onto the nut, and one end of the bolt rod extends into the grouting box and abuts against the base support plate.

[0011] Furthermore, a first rubber sheath is sleeved on the outer wall of one end of the bolt rod extending into the grouting box.

[0012] Furthermore, the horizontal limiting bolt assembly includes a limiting bolt and a fixing plate. The fixing plate is fixedly arranged on the top plate. One end of the fixing plate away from the top plate is screwed with the limiting bolt. The limiting bolt abuts against the turbine expander base support block.

[0013] Furthermore, a rib plate is welded between the fixed plate and the top plate, and a side of the fixed plate away from the rib plate abuts against the grouting box.

[0014] Furthermore, an expander fastening bolt is screwed onto the top plate, and the expander fastening bolt, at one end away from the top plate, passes through the grouting box, the base support plate and the turbine expander base support block in sequence.

[0015] Furthermore, fastening nuts are respectively screwed onto both ends of the expander fastening bolt to fix the turbine expander base support block.

[0016] Furthermore, the portion of the expansion machine fastening bolt extending into the grouting box is sheathed with a second rubber sheath.

[0017] The leveling support structure for installing a turbine expander on an offshore platform of the present invention has the following advantages:

[0018] By placing a grouting box on a support pier, placing the turbine expander on the base support plate above the grouting box, and adjusting the horizontality and coaxiality of the turbine expander using the leveling bolts and horizontal limit bolt assembly, grouting is injected into the grouting box after the required installation accuracy is achieved, and then the turbine expander is fixed. This application is simple to operate on site and solves the problems of difficult precision machining and installation leveling of the installation base of large turbine expanders. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Detailed installation drawing of the peripheral support blocks of the leveling support structure installed for the offshore platform turbine expander of the present invention;

[0020] Figure 2 Detailed installation drawing of the intermediate support block of the leveling support structure installed for the offshore platform turbine expander of the present invention;

[0021] Figure 3 A top view of the leveling support structure installed for the offshore platform turbine expander of the present invention;

[0022] Figure 4 This is a front view of the leveling support structure installed on the offshore platform turbine expander of the utility model.

[0023] Description of the marks in the figure:

[0024] 1. Support pad; 11. Top plate; 12. Web plate; 13. Reinforcement rib plate 2. Grouting box; 3. Base support plate; 4. Leveling bolt; 41. Bolt rod; 42. Nut; 43. First rubber sheath; 5. Horizontal limit bolt assembly; 51. Limit bolt; 52. Fixing plate; 53. Rib plate; 6. Epoxy grouting material; 7. Expander fastening bolt; 8. Turbine expander base support block; 9. Second rubber sheath; 101. Peripheral support block; 102. Intermediate support block. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0027] Please refer to the attached Figure 1 To the attached Figure 4 The utility model describes a leveling support structure for installing a turbine expander on an offshore platform.

[0028] like Figure 1 As shown, the leveling support structure for installing a turbine expander on an offshore platform in the present invention includes a support pad 1 and a grouting box 2. The grouting box 2 is arranged on the support pad 1. A base support plate 3 is provided on the support pad 1. A leveling bolt 4 is connected between the base support plate 3 and the support pad 1. One end of the base support plate 3 away from the leveling bolt 4 is in contact with a turbine expander base support block 8. A horizontal limit bolt assembly 5 and an expander fastening bolt 7 are provided between the turbine expander base support block 8 and the support pad 1.

[0029] By placing a grouting box 2 on a support pier 1, the turbine expander is placed on the base support plate 3 above the grouting box 2. The leveling bolts 4 and the horizontal limit bolt assembly 5 are used to adjust the horizontality and coaxiality of the turbine expander. After the installation accuracy meets the requirements, grouting is poured into the grouting box 2, and then the turbine expander is fixed. This application is simple to operate on site and solves the problems of difficult precision machining and installation leveling of the installation base of large turbine expanders.

[0030] Further, if Figure 1 、 Figure 3 and Figure 4 As shown, the supporting pad 1 includes a top plate 11 and a web 12, the web 12 is welded to the top plate 11, and a plurality of reinforcing ribs 13 are welded between the web 12 and the top plate 11; a grouting box 2 is abutted on the top plate 11, and the grouting box 2 is filled with epoxy grouting material 6 to support the base support plate 3; the leveling bolt 4 includes a bolt rod 41 and a nut 42, the nut 42 is welded to the top plate 11, the bolt rod 41 is screwed on the nut 42, and the bolt rod 41 extends into the grouting box 2 at one end and abuts against the base support plate 3; a first rubber sheath 43 is sleeved on the outer wall of the end of the bolt rod 41 extending into the grouting box 2.

[0031] In this embodiment, preferably, the support structure is divided into two forms. One is a peripheral support block suitable for the turbine expander base, which plays the role of end leveling, supporting and fixing the turbine expander. It includes a support pad 1, a grouting box 2, a base support plate 3, a leveling bolt 4, a horizontal limit bolt assembly 5, an epoxy grouting material 6 and an expander fastening bolt 7;

[0032] Another intermediate support block suitable for a turbine expander base plays the role of leveling and supporting the turbine expander, which includes a support pad 1, a grouting box 2, a base support plate 3, a leveling bolt 4 and an epoxy grouting material 6.

[0033] Here is a detailed description of the structure of the peripheral support block:

[0034] The support pads 1 are welded and fixed to the base structure of the turbine expander installation position. The position and number of the support pads correspond to the support blocks under the turbine expander base and are used to bear the weight and load of the turbine expander.

[0035] Preferably, the support pad 1 is assembled and welded by a top plate 11, a web 12 and several reinforcing ribs 13. Holes for leveling bolts 4 and expander fastening bolts 7 are opened on the top plate 11 of the support pad 1 for the peripheral support blocks, and only holes for leveling bolts 4 are opened on the top plate of the support pad 1 for the intermediate support blocks.

[0036] The grouting box 1 is formed by welding thin steel plates into a box body, which is then welded and fixed on the top plate 11 of the supporting pier 1 for storing epoxy grouting material.

[0037] Preferably, the bolt rod 41 is connected to the nut through the leveling bolt opening on the top plate 11 of the support pad 1, and the nut 42 is welded and fixed to the top plate 11 of the support pad 1. A first rubber sheath 43 is sleeved on the part of the bolt rod 41 where the nut 42 extends out of the grouting box 2, and the head of the bolt rod 41 presses against the base support plate 3. The height and levelness of the base support plate 3 are adjusted by adjusting the extending length of the bolt rod 41.

[0038] The base support plate 3 is machined from a thicker steel plate to 40-50 mm, and the upper surface roughness grade is Ra3.2. Holes for the expander fastening bolts 7 are opened on the base support plate for the peripheral support blocks.

[0039] Further, if Figure 1 As shown, the horizontal limit bolt assembly 5 includes a limit bolt 51 and a fixing plate 52. The fixing plate 52 is fixedly arranged on the top plate 11. The end of the fixing plate 52 away from the top plate 11 is screwed with the limit bolt 51, and the limit bolt 51 abuts against the turbine expander base support block 8; a rib plate 53 is welded between the fixing plate 52 and the top plate 11, and the side of the fixing plate 52 away from the rib plate 53 abuts against the grouting box 2.

[0040] In this embodiment, the horizontal limit bolt assembly 5 is preferably divided into two types: longitudinal limit bolts and transverse limit bolts. The number of horizontal limit bolts is determined by the mass of the turboexpander. The horizontal limit bolt assembly 5 comprises a horizontal limit bolt 51, a fixing plate 52, and a rib plate 53. The fixing plate 52 is fixed to the top plate 11 of the support pier 1 in close contact with the wall of the grouting box 2. The fixing plate 52 has a threaded hole for the horizontal limit bolt 51. The rib plate 53 is used to strengthen the fixing plate 52.

[0041] Further, if Figure 1 and Figure 2 As shown, the top plate 11 is screwed with an expander fastening bolt 7, and the end of the expander fastening bolt 7 away from the top plate passes through the grouting box 2, the base support plate 3 and the turbine expander base support block 8 in sequence; the two ends of the expander fastening bolt 7 are respectively screwed with fastening nuts to fix the turbine expander base support block 3; the part of the expander fastening bolt 7 extending into the grouting box 2 is covered with a second rubber sheath 9.

[0042] In this embodiment, preferably, the epoxy grouting material 6 is a three-component, high-strength, 100% cured epoxy grouting material with extremely high compressive strength and negligible minimal shrinkage; the expander fastening bolt 7 is composed of a double-headed stud, a nut, a flat washer and a spring washer, and is connected to the turbine expander base support block 8 through the fastening stud openings on the top plate 11 of the support pad 1 and the base support plate 3, and is used to fix the turbine expander. The expander fastening bolt 7 is partially covered with a second rubber sheath 9 on the grouting box 1 to play a protective role.

[0043] The installation principle of the leveling support structure for the offshore platform turbine expander in the present invention is as follows:

[0044] First, when installing the turbine expander, the support pads are welded to the corresponding positions of the base structure according to the number and positions of the support blocks under the turbine expander base 8. Then, the grouting box 2 and the horizontal limit bolt assembly 5 are welded to the top plate 11 of the support pad 1. The leveling bolts 4, the horizontal limit bolt assembly 5 and the base support plate 3 are installed. The protruding length of the leveling bolts 4 on each support pad is adjusted so that the height of each base support plate 3 reaches the turbine expander installation support height. The turbine expander is hoisted and placed on the base support plate 3 of the support structure.

[0045] Then, fine-tune the leveling bolts 4 on each supporting pad 1 so that the installation height and levelness of the turbine expander meet the design requirements, adjust the transverse limit bolts 51 so that the distance from the turbine expander to the generator meets the design requirements, and adjust the longitudinal limit bolts so that the center of the turbine expander and the center of the generator are on the same axis. Use instruments to measure the turbine expander. When various installation parameters meet the requirements, tighten the transverse and longitudinal limit bolts.

[0046] Finally, install the expander fastening bolts 7, then fill the space between the grouting box 2 and the base support plate 3 with epoxy grouting material 6. After the epoxy grouting material 6 is fully solidified, tighten the expander fastening bolts 7. At this time, the turbine expander installation is completed.

[0047] Based on the leveling support structure for installing a turbine expander on an offshore platform, the present invention places a grouting box 2 on a top plate 11, places the turbine expander on a base support plate 3 above the grouting box 2, and uses the bolt rod 41 of the leveling bolt 4 and the limit bolt 51 of the horizontal limit bolt assembly 5 to adjust the horizontality and coaxiality of the turbine expander. After the installation accuracy meets the requirements, epoxy grouting material 6 is poured into the grouting box 1, and the turbine expander is then fixed. This application is simple to operate on site and solves the problems of difficult precision machining and installation leveling of the installation base of large turbine expanders.

[0048] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A leveling support structure for installing a turbine expander on an offshore platform, characterized in that: It includes a supporting pad and a grouting box. The grouting box is arranged on the supporting pad. A base support plate is provided on the supporting pad. A leveling bolt is connected between the base support plate and the supporting pad. The end of the base support plate away from the leveling bolt is abutted against the turbine expander base support block. A horizontal limit bolt assembly and an expander fastening bolt are provided between the turbine expander base support block and the supporting pad.

2. The leveling support structure for installing a turbine expander on an offshore platform according to claim 1, characterized in that: The supporting pad comprises a top plate and a web plate, the web plate is welded to the top plate, and a plurality of reinforcing rib plates are welded between the web plate and the top plate.

3. The leveling support structure for installing a turbine expander on an offshore platform according to claim 2, characterized in that: A grouting box is abutted on the top plate, and the grouting box is filled with epoxy grouting material to support the base support plate.

4. The leveling support structure for installing a turbine expander on an offshore platform according to claim 1, characterized in that: The leveling bolt includes a bolt rod and a nut. The nut is welded to the top plate, the bolt rod is screwed onto the nut, and one end of the bolt rod extends into the grouting box and abuts against the base support plate.

5. The leveling support structure for installing a turbine expander on an offshore platform according to claim 4, characterized in that: A first rubber sheath is sleeved on the outer wall of one end of the bolt rod extending into the grouting box.

6. The leveling support structure for installing a turbine expander on an offshore platform according to claim 1, characterized in that: The horizontal limit bolt assembly includes a limit bolt and a fixing plate. The fixing plate is fixed on the top plate. One end of the fixing plate away from the top plate is screwed with the limit bolt. The limit bolt abuts against the turbine expander base support block.

7. The leveling support structure for installing a turbine expander on an offshore platform according to claim 6, characterized in that: A rib plate is welded between the fixing plate and the top plate, and a side of the fixing plate away from the rib plate abuts against the grouting box.

8. The leveling support structure for installing a turbine expander on an offshore platform according to claim 7, characterized in that: The top plate is screwed with an expander fastening bolt, and one end of the expander fastening bolt away from the top plate passes through the grouting box, the base support plate and the turbine expander base support block in sequence.

9. The leveling support structure for installing a turbine expander on an offshore platform according to claim 8, characterized in that: Both ends of the expander fastening bolt are screwed with fastening nuts to fix the turbine expander base support block.

10. The leveling support structure for installing a turbine expander on an offshore platform according to claim 9, characterized in that: The portion of the expansion machine fastening bolt extending into the grouting box is sheathed with a second rubber sheath.

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