Installation tool and installation method for hydrogen system of generator set

Abstract

The invention relates to the technical field of generators, in particular to a generator set hydrogen system installation tool which comprises an upper frame used for being connected with a hydrogen cooler. The upper frame is used for being connected with a shell, the lower frame is used for being connected with a shell, and the upper frame and the lower frame are detachably connected through a lock catch assembly; according to the installation tool, on the premise that an original hydrogen cooler and an original generator set shell are changed, the connection mode of the upper frame and the lower frame is designed, the connection mode of the upper frame and the lower frame is optimized, and the installation efficiency of the hydrogen cooler and the generator set shell is improved. Modularized assembly between the hydrogen cooler and the generator set shell can be achieved, the construction period can be effectively shortened, meanwhile, compared with an existing flange connection mode, the follow-up overhaul convenience can be effectively improved, in addition, the positioning assembly arranged in the lower frame can keep the hydrogen cooler installed in the middle, and the installation efficiency is improved. In this way, it can be guaranteed that the hydrogen cooler can be vertically inserted into the vertical shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of generator sets, and in particular to an installation tool and an installation method for a hydrogen system of a generator set. Background Art

[0002] In the field of hydrogen-cooled generators, hydrogen coolers, as a key heat exchange equipment, have been widely used in large and medium-sized hydrogen-cooled generators for their excellent heat exchange capacity and cooling effect. These generators usually have shafts at the four corners of the gas and excitation end shields of the power station for installing hydrogen coolers to achieve cooling of the hydrogen inside the generator.

[0003] However, there are some problems with the existing connection and assembly method between the hydrogen cooler and the generator set housing. At present, this connection is mainly carried out by means of flange-fitting bolts. However, this traditional assembly structure lacks a design for centering the hydrogen cooler, which makes it easy for the cooler to bump or get stuck with the support beam in the shaft during installation, which not only affects the accuracy of the installation, but may also cause damage to the cooler. In addition, the installation method of flange-fitting bolts is less efficient during installation and disassembly, which directly affects the overall assembly period. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, such as the lack of a design for centrally positioning a hydrogen cooler, and to propose a generator set hydrogen system installation tool and installation method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Design a generator set hydrogen system installation tool, including:

[0007] An upper frame for connecting a hydrogen cooler;

[0008] and a lower frame for connecting to the housing, wherein the upper frame and the lower frame are detachably connected via a locking assembly;

[0009] Two positioning assemblies are also arranged on the inner side of the lower frame. The two positioning assemblies are arranged opposite to each other and are used to guide the movement of the cooler. A synchronization assembly is also arranged on the inner side of the lower frame and is used to drive the two positioning assemblies to move synchronously.

[0010] Furthermore, the locking assembly includes an alignment rod fixed on the outer side of the upper frame, and an alignment seat is fixed on the outer side of the lower frame;

[0011] Wherein, the alignment rod is plugged into the alignment seat and locked by a clamping piece.

[0012] Furthermore, the clamping member is a positioning glass bead embedded on the outside of the alignment rod, and a hole for the telescopic end of the positioning glass bead to pass through is opened on the end surface of the alignment seat.

[0013] Furthermore, the positioning assembly includes a U-shaped frame movably connected to the inner side of the lower frame, and two guide rods penetrating the lower frame are fixedly mounted on the end surface of the U-shaped frame, wherein the ends of the guide rods have rolling parts.

[0014] Furthermore, a connecting rod is provided on the outer side of the lower frame, the connecting rod passes through the lower frame and is fixedly connected to the U-shaped frame, and a spring is fixedly connected between the connecting rod and the outer wall of the lower frame.

[0015] Furthermore, two U-shaped frames of the positioning assembly are stacked, wherein a partition is fixedly installed on the inner side of the lower frame, and the partition is at a predetermined distance from both ends of the lower frame;

[0016] The two U-shaped frames are respectively placed above and below the partition.

[0017] Furthermore, the synchronous assembly includes two pulleys rotatably connected to the lower frame, a synchronous belt is fixedly connected between the two pulleys, and the upper side and the lower side of the synchronous belt are respectively fixed to the two stacked U-shaped frames.

[0018] Furthermore, the two guide rods on the upper U-shaped frame are movably connected with wedge blocks through compression springs, and the lower part of the upper frame is fixedly connected with a trigger rod that contacts the wedge blocks.

[0019] Furthermore, flanges are fixedly installed in the inner circles of the upper frame and the lower frame.

[0020] In addition, the present invention also discloses a method for installing a hydrogen system of a generator set, the method comprising the following steps:

[0021] S1. Assemble and connect the upper frame and the hydrogen cooler by fasteners, and fix the lower frame at the shaft opening of the generator set casing;

[0022] S2. Lift the hydrogen cooler and the upper frame as a whole, insert them along the vertical shaft of the shell for installation, until the hydrogen cooler is completely sunk into the vertical shaft;

[0023] S3. The upper frame and the lower frame are connected and fixed by means of a locking assembly to complete the installation of the hydrogen cooler.

[0024] The present invention proposes a generator set hydrogen system installation tool and installation method, which have the beneficial effect that: the installation tool of the present invention can realize modular assembly between the hydrogen cooler and the generator set shell through the designed upper frame and lower frame conversion method under the premise of changing the original hydrogen cooler and the generator set shell, which can effectively shorten the construction period. At the same time, compared with the current flange connection method, it can also effectively improve the convenience of subsequent maintenance. In addition, the positioning assembly arranged in the lower frame can maintain the center installation of the hydrogen cooler, thereby ensuring that the hydrogen cooler can be vertically inserted into the shaft, avoiding the risk of the outside of the cooler colliding with the support beam in the shaft during the installation process, and improving the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the U-shaped frame structure of the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of area A;

[0028] Figure 4 It is a schematic diagram of the structure of the positioning component of the present invention;

[0029] Figure 5 is a cross-sectional view of the lower frame of the present invention;

[0030] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of area B.

[0031] In the figure: 1. upper frame; 11. flange; 12. trigger rod; 2. lower frame; 21. partition; 3. locking assembly; 31. alignment rod; 32. alignment seat; 33. snap-on piece; 4. positioning assembly; 41. U-shaped frame; 42. guide rod; 43. rolling element; 44. connecting rod; 45. spring; 46. wedge block; 5. synchronization assembly; 51. pulley; 52. synchronization belt. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Reference Figure 1-6An embodiment of the present invention discloses a generator set hydrogen system installation tool, which is used to realize convenient installation and disassembly of a hydrogen cooler to optimize installation efficiency and adopt a modular assembly method to effectively shorten the construction period. Specifically, the installation tool includes an upper frame 1 for connecting the hydrogen cooler;

[0034] and a lower frame 2 for connecting to the housing, wherein the upper frame 1 and the lower frame 2 are detachably connected via a locking assembly 3;

[0035] Specifically, in the present embodiment, flanges 11 are fixedly installed in the inner circles of the upper frame 1 and the lower frame 2, and the flanges 11 thereof are used to connect with the shaft opening and the hydrogen cooler. Therefore, there is no need to change the original hydrogen cooler and shaft structure. Only an upper frame 1 and a lower frame 2 are added between the two for transfer to improve the convenience of assembly. Of course, in order to improve the sealing of the connection, a sealing gasket can also be installed above the lower frame 2 in the present embodiment.

[0036] Two positioning components 4 are also provided on the inner side of the lower frame 2 . The two positioning components 4 are arranged opposite to each other and are used to guide the movement of the cooler. A synchronization component 5 is also provided on the inner side of the lower frame 2 and is used to drive the two positioning components 4 to move synchronously.

[0037] In some embodiments, the locking assembly 3 of the present invention includes an alignment rod 31 fixed on the outer side of the upper frame 1, and an alignment seat 32 is fixed on the outer side of the lower frame 2;

[0038] The alignment rod 31 is plugged into the alignment seat 32 and locked by a clamp 33. Preferably, in this embodiment, there are four alignment rods 31 and four alignment seats 32 distributed in a matrix.

[0039] Preferably, the clamping member 33 in this embodiment is a positioning glass bead embedded on the outside of the alignment rod 31 , and a hole for the telescopic end of the positioning glass bead to pass through is opened on the end surface of the alignment seat 32 .

[0040] That is to say, in this embodiment, during assembly, the alignment rod 31 on the outside of the upper frame 1 is inserted into the alignment seat 32 of the lower frame 2. At this time, the alignment of the upper frame 1 and the lower frame 2 can be completed. At the same time, with the help of the clamping connection between the positioning glass bead and the alignment seat 32, the upper frame 1 and the lower frame 2 can be locked and fixed. Of course, when the hydrogen cooler needs to be disassembled, it is only necessary to press the telescopic end of the positioning glass bead and lift the hydrogen cooler upward.

[0041] On the basis of the above-mentioned embodiment, the positioning assembly 4 in this embodiment includes a U-shaped frame 41 movably connected to the inner side of the lower frame 2, and two guide rods 42 penetrating the lower frame 2 are fixedly installed on the end face of the U-shaped frame 41, wherein the end of the guide rod 42 has a rolling member 43, and the rolling member 43 is configured as a ball embedded in the end of the guide rod 42. The design purpose of setting the rolling member 43 is to resist the outer shell of the hydrogen cooler. That is to say, in the actual installation process, the rolling members 43 on the two U-shaped frames 41 on the inner side of the lower frame 2 are used to form a relative centering clamping action, and the rolling member 43 contacts the outer shell of the hydrogen cooler, thereby ensuring that the hydrogen cooler can be vertically inserted into the shaft, avoiding the risk of the outer side of the cooler colliding or getting stuck with the support beam in the shaft during the installation process, thereby improving the stability of the installation.

[0042] Of course, in order to achieve the mobility of the U-shaped frame 41, in this embodiment, a connecting rod 44 is passed through the outer side of the lower frame 2, and the connecting rod 44 passes through the lower frame 2 and is fixedly connected to the U-shaped frame 41. A spring 45 is fixedly connected between the connecting rod 44 and the outer wall of the lower frame 2. Preferably, the connecting rod 44 described in this embodiment can be detachably connected to the U-shaped frame 41 by a threaded connection. The design of the spring 45 is to pull the U-shaped frame 41 outward to move, so as to drive the rolling member 43 to separate from the outer shell of the hydrogen cooler after the installation is completed.

[0043] On the basis of the above embodiment, in order to ensure that the two U-shaped frames 41 do not interfere with each other when moving, the U-shaped frames 41 of the two positioning assemblies 4 in this embodiment are stacked, wherein a partition 21 is fixedly installed on the inner side of the lower frame 2, and the partition 21 is at a predetermined distance from both ends of the lower frame 2. Specifically, in this embodiment, both ends of the partition 21 do not extend to the side of the lower frame 2, and the purpose is to provide space for installing the pulley 51;

[0044] The two U-shaped frames 41 are respectively placed above and below the partition 21 .

[0045] Furthermore, the synchronization component 5 in this embodiment includes two pulleys 51 rotatably connected to the lower frame 2, a synchronization belt 52 is fixedly connected between the two pulleys 51, and the upper and lower sides of the synchronization belt 52 are respectively fixed to the two stacked U-shaped frames 41.

[0046] That is to say, in this embodiment, the two U-shaped frames 41 are respectively connected to the two sides of the synchronous belt 52, with the help of the opposite up and down movement of the synchronous belt 52, when the upper U-shaped frame 41 moves outward to separate its rolling element 43 from the cooler shell, the upper U-shaped frame 41 will pull the synchronous belt 52 to rotate, and at this time the synchronous belt 52 will synchronously drive the lower U-shaped frame 41 to move outward, so as to achieve the synchronous outward movement of the U-shaped frames 41 on both sides until they are separated from the cooler shell.

[0047] It should be noted that, in the present embodiment, the two guide rods 42 on the upper U-shaped frame 41 are also movably connected with a wedge block 46 through a compression spring. Specifically, the wedge block 46 described in the present embodiment moves along the radial direction of the guide rod 42, and its inclined surface faces the inner side of the lower frame 2, and the trigger rod 12 that contacts the wedge block 46 is fixedly connected at the bottom of the upper frame 1.

[0048] That is, during the installation of the hydrogen cooler, the U-shaped frame 41 is in the positioning position, at which time the guide rod 42 moves outward and is locked by the wedge block 46. When the upper frame 1 is connected to the lower frame 2, the trigger rod 12 on the upper frame 1 contacts the wedge block 46, and the wedge block 46 contracts. At this time, under the pull of the spring 45, the entire U-shaped frame 41 moves backward and retreats. At the same time, with the help of the synchronization component 5, the two U-shaped frames 41 on both sides can be controlled to move outward synchronously, so that the rolling element 43 is separated from the outer shell of the cooler. Of course, when disassembling, it is only necessary to push the U-shaped frame 41 outward, and after the wedge block 46 pops out and contacts the inner side of the lower frame 2, the positioning position of the U-shaped frame 41 can be fixed. The purpose of adopting the retractable positioning structure is that during installation and disassembly, the centering movement of the hydrogen cooler can be maintained by the rolling element 43, and after the installation is completed, the rolling element 43 is separated from the shell of the cooler, so that no rigidity is generated on the shell, damage to the shell surface is avoided, and the force on the rolling element 43 is reduced.

[0049] In addition, the present invention also proposes a method for installing a hydrogen system of a generator set, the method comprising the following steps:

[0050] S1. Assemble and connect the upper frame 1 and the hydrogen cooler by fasteners, and fix the lower frame 2 at the shaft opening of the generator set casing;

[0051] S2. Lift the hydrogen cooler and the upper frame 1 as a whole, insert them along the vertical shaft of the shell for installation, until the hydrogen cooler is completely sunk into the vertical shaft;

[0052] S3. Connect and fix the upper frame 1 and the lower frame 2 through the locking assembly 3 to complete the installation of the hydrogen cooler.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A generator set hydrogen system installation tool, characterized in that: include: An upper frame (1) for connecting a hydrogen cooler; and a lower frame (2) for connecting to a shell, wherein the upper frame (1) and the lower frame (2) are detachably connected via a locking assembly (3); Two positioning assemblies (4) are also arranged on the inner side of the lower frame (2). The two positioning assemblies (4) are arranged opposite to each other and are used to guide the movement of the cooler. A synchronization assembly (5) is also arranged on the inner side of the lower frame (2) and is used to drive the two positioning assemblies (4) to move synchronously.

2. A generator set hydrogen system installation tool according to claim 1, characterized in that: The locking assembly (3) comprises an alignment rod (31) fixed on the outer side of the upper frame (1), and an alignment seat (32) fixed on the outer side of the lower frame (2); The alignment rod (31) is plugged into the alignment seat (32) and locked via a clamping piece (33).

3. A generator set hydrogen system installation tool according to claim 2, characterized in that: The clamping member (33) is a positioning glass bead embedded on the outside of the alignment rod (31), and a hole for the telescopic end of the positioning glass bead to pass through is provided on the end surface of the alignment seat (32).

4. A generator set hydrogen system installation tool according to claim 2, characterized in that: The positioning assembly (4) comprises a U-shaped frame (41) movably connected to the inner side of the lower frame (2), and two guide rods (42) penetrating the lower frame (2) are fixedly mounted on the end surface of the U-shaped frame (41), wherein the ends of the guide rods (42) have rolling elements (43).

5. A generator set hydrogen system installation tool according to claim 4, characterized in that: A connecting rod (44) is provided on the outer side of the lower frame (2), the connecting rod (44) passes through the lower frame (2) and is fixedly connected to the U-shaped frame (41), and a spring (45) is fixedly connected between the connecting rod (44) and the outer wall of the lower frame (2).

6. A generator set hydrogen system installation tool according to claim 4, characterized in that: The U-shaped frames (41) of the two positioning assemblies (4) are stacked, wherein a partition (21) is fixedly installed on the inner side of the lower frame (2), and the partition (21) is at a predetermined distance from both ends of the lower frame (2); The two U-shaped frames (41) are respectively placed above and below the partition (21).

7. A generator set hydrogen system installation tool according to claim 6, characterized in that: The synchronous assembly (5) comprises two pulleys (51) rotatably connected to the lower frame (2), a synchronous belt (52) is fixedly connected between the two pulleys (51), and the upper side and the lower side of the synchronous belt (52) are respectively fixed to the two stacked U-shaped frames (41).

8. A generator set hydrogen system installation tool according to claim 5, characterized in that: The two guide rods (42) on the upper U-shaped frame (41) are also movably connected to a wedge block (46) via a compression spring, and the lower part of the upper frame (1) is fixedly connected to a trigger rod (12) that contacts the wedge block (46).

9. A generator set hydrogen system installation tool according to claim 1, characterized in that: Flanges (11) are fixedly installed in the inner circles of the upper frame (1) and the lower frame (2).

10. A method for installing a hydrogen system of a generator set, characterized in that: The steps include: S1. Assemble and connect the upper frame (1) and the hydrogen cooler by means of fasteners, and fix the lower frame (2) at the shaft opening of the generator housing; S2. Lift the hydrogen cooler and the upper frame (1) as a whole, insert them along the vertical shaft of the shell for installation, until the hydrogen cooler is completely sunk into the vertical shaft; S3. The upper frame (1) and the lower frame (2) are connected and fixed by means of a locking assembly (3), thereby completing the installation of the hydrogen cooler.

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