Assembly type sound insulation housing structure of steam turbine

Abstract

The steam turbine assembly type sound insulation housing structure comprises a housing body installed at the top of a steam turbine base, a sound insulation cotton pad is installed on the inner wall of the housing body, an end base is fixed to the bottom face of the housing body, and a top base corresponding to the end base is fixed to the top of the steam turbine base; each assembling mechanism comprises a cylindrical rod groove formed in the bottom face of the end base and a cylindrical bottom rod movably arranged in the cylindrical rod groove, and the bottom end of the cylindrical bottom rod extends to the bottom of the end base. By improving and optimizing a steam turbine assembly type sound insulation housing structure in the prior art, structures such as an assembly mechanism are designed between the housing main body and the steam turbine base, so that the assembly convenience of the housing main body can be greatly improved, the housing main body can be conveniently assembled and mounted in the early stage, and the assembly efficiency is improved. And the cover shell main body can be quickly disassembled in the subsequent overhaul and maintenance process, so that the later maintenance convenience of the whole steam turbine is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of sound insulation covers for steam turbines, and in particular relates to an assembled sound insulation cover structure for a steam turbine. Background Art

[0002] A steam turbine is an internal combustion power machine that uses a continuously flowing gas as a working fluid to drive the impeller to rotate at high speed, converting the energy of the fuel into useful work. It is a rotating impeller heat engine, and a soundproof cover for a steam turbine is a soundproof cover installed above the base of the steam turbine, which can play a protective and soundproofing role. For example, the existing patent with the publication number CN214366238U discloses "a high-efficiency soundproof cover structure for a steam turbine, wherein a mounting cavity is provided inside the concrete seat, and a mounting groove is provided on the upper surface of the concrete seat, a fixing plate is installed on the mounting groove, a soundproof cover body is provided on the fixing plate, a soundproof plate is installed on the inner wall of the soundproof cover body, and silencer cavities are evenly provided on the soundproof plate at equal intervals." It can be seen that the application describes a common soundproof cover for a steam turbine;

[0003] In the prior art, the sound insulation cover of the steam turbine is usually fixed on the top of the steam turbine base by multiple bolts during actual use, and the overall disassembly and assembly is not very convenient. On the one hand, it is not easy to install and assemble in the early stage. On the other hand, when the steam turbine needs to be inspected and maintained in the later stage, it will take a lot of time to disassemble and assemble the sound insulation cover, which has disadvantages. For this reason, the present invention proposes an assembled sound insulation cover structure for a steam turbine. Summary of the invention

[0004] The object of the present invention is to provide an assembled sound insulation cover structure for a steam turbine, so as to solve the problem that the sound insulation cover of the steam turbine in the prior art proposed in the above background technology is generally fixed on the top of the steam turbine base by multiple bolts during actual use, and the overall disassembly and assembly is not convenient. On the one hand, it is not easy to install and assemble in the early stage. On the other hand, when the steam turbine needs to be inspected and maintained in the later stage, it will take a lot of time to disassemble and assemble the sound insulation cover, which has disadvantages.

[0005] To achieve the above object, the present invention provides the following technical solution: a steam turbine assembled sound insulation cover structure, comprising

[0006] A casing body installed on the top of the steam turbine base, wherein a sound insulation pad is installed on the inner wall of the casing body, an end seat is fixed on the bottom surface of the casing body, and a top seat corresponding to the end seat is fixed on the top of the steam turbine base;

[0007] And multiple assembly mechanisms are arranged between the end seat and the top seat, including a cylindrical rod groove opened on the bottom surface of the end seat, a cylindrical bottom rod movably arranged in the cylindrical rod groove and with the bottom end extending to the bottom of the end seat, a limiting and tightening block fixed on the bottom end surface of the cylindrical bottom rod, a strip notch opened on the side of the top seat for the cylindrical bottom rod to pass through, and a cylindrical pressure rod fixed on the top end surface of the cylindrical bottom rod and passing through to the top of the end seat, a pressure block is fixed on the top end surface of the cylindrical pressure rod relative to the top of the end seat, and a spring is also sleeved on the top end surface of the cylindrical pressure rod, the bottom end of the cylindrical bottom rod passes through the strip notch to the top of the top seat, and the limiting and tightening block is stuck on the bottom surface of the top seat.

[0008] Preferably, the assembly mechanism further comprises a positioning block fixed on the bottom surface of the top seat and located on one side of the strip-shaped notch, the top surface of the limiting and tightening block is provided with a rectangular slot corresponding to the positioning block, and the positioning block is inserted into the rectangular slot.

[0009] Preferably, the bottom end of the spring abuts against the top surface of the end seat, and the top end of the spring abuts against the bottom surface of the pressing block.

[0010] Preferably, a circular hole corresponding to the cylindrical pressure rod is formed through the inner wall of the top end of the cylindrical rod groove, and the circular hole is communicated with the top surface of the end seat.

[0011] Preferably, a U-shaped rubber pad is embedded in the bottom surface of the end seat, and an integrated U-shaped sealing convex ring is provided on the bottom surface of the U-shaped rubber pad, and a U-shaped sealing groove corresponding to the U-shaped sealing convex ring is opened on the top surface of the top seat, and the U-shaped sealing convex ring is squeezed into the U-shaped sealing groove.

[0012] Preferably, the top surface of the cover shell body is provided with a plurality of interfaces, and the surface of the sound insulation cotton pad is provided with a plurality of circular notches corresponding to the interfaces.

[0013] Preferably, a plurality of T-shaped rubber clamps are fixed to the inner wall of the cover body, a plurality of clamp holes corresponding to the T-shaped rubber clamps are opened on the surface of the sound insulation cotton pad, and the bottom end of the T-shaped rubber clamp passes through the clamp hole to the inner side of the sound insulation cotton pad.

[0014] Preferably, a cavity is provided inside the T-shaped rubber clamp.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention improves and optimizes the steam turbine assembled sound insulation cover structure in the prior art, and designs an assembly mechanism and other structures between the cover body and the steam turbine base, which can greatly improve the assembly convenience of the cover body, facilitate the early assembly and installation of the cover body, and quickly complete the disassembly of the cover body during subsequent inspection and maintenance, thereby ensuring the overall convenience of the later maintenance of the steam turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 is a cross-sectional view of the present invention;

[0018] Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A area;

[0019] Figure 4 For the present invention Figure 2 A partial enlarged view of the middle B area;

[0020] Figure 5 For the present invention Figure 2 A partial enlarged view of the middle C area;

[0021] In the figure: 1. casing body; 11. end seat; 12. interface; 13. U-shaped rubber pad; 14. U-shaped sealing convex ring; 15. T-shaped rubber clamp; 151. cavity; 2. turbine base; 21. top seat; 22. U-shaped sealing groove; 3. assembly mechanism; 31. cylindrical bottom rod; 32. limiting and tightening block; 33. strip notch; 34. cylindrical pressure rod; 35. pressure block; 36. spring; 37. cylindrical rod groove; 38. positioning block; 39. rectangular clamping groove; 4. sound insulation cotton pad; 41. circular notch; 42. clamping hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figures 1 to 4 , which is the first embodiment of the present invention, and this embodiment provides a technical solution: a steam turbine assembled sound insulation cover structure, comprising

[0025] A casing body 1 is installed on the top of the steam turbine base 2, and a sound insulation cotton pad 4 is installed on the inner wall of the casing body 1. The sound insulation cotton pad 4 is made of an aluminum silicate fiber blanket, and its main components are silicon oxide and aluminum oxide, etc. It has the following characteristics: it has a high fiber density and good temperature resistance, and can also show excellent heat insulation and sound insulation effects in a high temperature environment. In addition, the aluminum silicate fiber blanket is non-toxic and harmless, has good environmental protection performance, and can play an effective role in sound insulation and noise reduction, and reduce the noise generated during the operation of the steam turbine. An end seat 11 is welded and fixed to the bottom surface of the casing body 1, and a top seat 21 corresponding to the end seat 11 is welded and fixed to the top of the steam turbine base 2;

[0026] And a plurality of assembly mechanisms 3 arranged between the end seat 11 and the top seat 21, including a cylindrical rod groove 37 opened on the bottom surface of the end seat 11, a cylindrical bottom rod 31 movably arranged in the cylindrical rod groove 37 and with the bottom end extending to the bottom of the end seat 11, a limiting and tightening block 32 welded and fixed to the bottom end surface of the cylindrical bottom rod 31, a strip notch 33 opened on the side of the top seat 21 for the cylindrical bottom rod 31 to pass through, a cylindrical pressure rod 34 fixed to the top surface of the cylindrical bottom rod 31 and passing through to the top of the end seat 11, a pressure block 35 is fixed on the top surface of the cylindrical pressure rod 34 relative to the top of the end seat 11, and a spring 36 is also sleeved and installed on the top surface of the cylindrical pressure rod 34, and the bottom end of the cylindrical bottom rod 31 passes through the strip notch 33 to the top seat 2 1, and the limiting and tightening block 32 is stuck in the bottom surface of the top seat 21. Under the pushing action of the spring 36, the limiting and tightening block 32 can be pressed against the bottom surface of the top seat 21, thereby ensuring the assembly tightness between the end seat 11 and the top seat 21. The assembly mechanism 3 also includes a positioning block 38 fixed to the bottom surface of the top seat 21 and on one side of the strip-shaped notch 33. The top surface of the limiting and tightening block 32 is provided with a rectangular slot 39 corresponding to the positioning block 38. The positioning block 38 is stuck in the rectangular slot 39, which can limit the limiting and tightening block 32 to prevent the limiting and tightening block 32 from rotating and moving away from the bottom surface of the top seat 21. If the cover body 1 is to be removed later, it is only necessary to press the pressing block 35 first, so that the spring 36 is compressed, and the cylindrical pressing rod 34 is brought The cylindrical bottom rod 31 moves downward, causing the limiting and tightening block 32 to separate from the bottom surface of the top seat 21 until the positioning block 38 moves out of the rectangular slot 39. At this time, the cylindrical bottom rod 31 can be rotated 180 degrees to rotate and remove the limiting and tightening block 32 from the bottom of the top seat 21, and align the limiting and tightening block 32 with the strip notch 33, thereby releasing the blocking and limiting of the limiting and tightening block 32 and the cover body 1. At this time, the cover body 1 can be moved upward to remove the cylindrical bottom rod 31 and the limiting and tightening block 32 from the strip notch 33, so that the cover body 1 can be quickly removed from the top of the turbine base 2, which is convenient for the inspection and maintenance of the turbine components inside the turbine base 2. After the inspection is completed, the cover body 1 is covered on the top of the turbine base 2 , so that the cylindrical bottom rod 31 and the limiting and tightening block 32 pass through the strip notch 33 to the bottom of the top seat 21, and then the pressing block 35 is pressed down, so that the height of the limiting and tightening block 32 moves down to a height lower than the bottom surface of the positioning block 38. At the same time, the pressing block 35 and the cylindrical bottom rod 31 are rotated 180 degrees, so that the limiting and tightening block 32 rotates to the bottom of the positioning block 38, and the rectangular slot 39 is aligned with the positioning block 38. At this time, the pressing block 35 is released, and under the push of the spring 36, the cylindrical bottom rod 31 moves up with the limiting and tightening block 32, and the positioning block 38 is snapped into the rectangular slot 39, so that the end seat 11 and the top seat 21 can be pressed together, completing the rapid assembly of the cover shell body 1, and greatly improving the convenience of disassembly and assembly of the cover shell body 1.

[0027] In this embodiment, preferably, the bottom end of the spring 36 abuts against the top surface of the end seat 11 , and the top end of the spring 36 abuts against the bottom surface of the pressing block 35 .

[0028] In this embodiment, preferably, a circular hole corresponding to the cylindrical pressure rod 34 is formed through the inner wall of the top end of the cylindrical rod groove 37, and the circular hole is communicated with the top surface of the end seat 11 to facilitate the smooth penetration and subsequent rotation of the cylindrical pressure rod 34.

[0029] In the present embodiment, preferably, a U-shaped rubber pad 13 is embedded and installed on the bottom surface of the end seat 11, and an integrated U-shaped sealing convex ring 14 is provided on the bottom surface of the U-shaped rubber pad 13, both of which are made of fluororubber material and will undergo elastic deformation when squeezed, and a U-shaped sealing groove 22 corresponding to the U-shaped sealing convex ring 14 is provided on the top surface of the top seat 21, and the U-shaped sealing convex ring 14 is squeezed into the U-shaped sealing groove 22, which can ensure the sealing of the cover body 1 and the turbine base 2 after combination.

[0030] In this embodiment, preferably, a plurality of interfaces 12 are provided on the top surface of the housing body 1 for connecting external pipes, and a plurality of circular notches 41 corresponding to the interfaces 12 are provided on the surface of the sound insulation pad 4 .

[0031] Example 2

[0032] See also Figures 1 to 5 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the difference is that a plurality of T-shaped rubber clamps 15 are glued and fixed to the inner wall of the cover body 1, and a plurality of clamping holes 42 corresponding to the T-shaped rubber clamps 15 are opened on the surface of the sound insulation cotton pad 4. The bottom end of the T-shaped rubber clamp 15 passes through the clamping hole 42 to the inner side of the sound insulation cotton pad 4, so that the sound insulation cotton pad 4 is installed on the inner wall of the cover body 1 through the plurality of T-shaped rubber clamps 15, thereby ensuring the installation stability of the sound insulation cotton pad 4, and a cavity 151 is opened inside the T-shaped rubber clamp 15, so that the T-shaped rubber clamp 15 is easy to elastically deform when squeezed.

[0033] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam turbine assembled sound insulation casing structure, characterized in that: include A casing body (1) is mounted on the top of a steam turbine base (2), a sound insulation pad (4) is mounted on the inner wall of the casing body (1), an end seat (11) is fixed to the bottom surface of the casing body (1), and a top seat (21) corresponding to the end seat (11) is fixed to the top of the steam turbine base (2); and a plurality of assembly mechanisms (3) arranged between the end seat (11) and the top seat (21), comprising a cylindrical rod groove (37) provided on the bottom surface of the end seat (11), a cylindrical bottom rod (31) movably arranged in the cylindrical rod groove (37) and with its bottom end extending to the bottom of the end seat (11), a limiting and tightening block (32) fixed to the bottom surface of the cylindrical bottom rod (31), a strip-shaped notch (33) provided on the side surface of the top seat (21) for the cylindrical bottom rod (31) to pass through, and a cylindrical bottom rod (31) fixed to the cylindrical bottom rod (31). A cylindrical pressure rod (34) is provided on the top surface of the columnar bottom rod (31) and penetrates to the top of the end seat (11); a pressure block (35) is fixed on the top surface of the cylindrical pressure rod (34) relative to the top of the end seat (11); and a spring (36) is also sleeved and installed on the top surface of the cylindrical pressure rod (34); the bottom end of the cylindrical bottom rod (31) penetrates to the top of the top seat (21) through a strip-shaped notch (33), and a limiting pressing block (32) is clamped on the bottom surface of the top seat (21).

2. The steam turbine assembled sound insulation casing structure according to claim 1, characterized in that: The assembly mechanism (3) further comprises a positioning block (38) fixed to the bottom surface of the top seat (21) and located on one side of the strip-shaped notch (33); the top surface of the position-limiting and abutting block (32) is provided with a rectangular slot (39) corresponding to the positioning block (38); and the positioning block (38) is inserted into the rectangular slot (39).

3. The steam turbine assembled sound insulation cover structure according to claim 1, characterized in that: The bottom end of the spring (36) abuts against the top surface of the end seat (11), and the top end of the spring (36) abuts against the bottom surface of the pressing block (35).

4. The steam turbine assembled sound insulation casing structure according to claim 1, characterized in that: A circular hole corresponding to the cylindrical pressure rod (34) is formed through the inner wall of the top end of the cylindrical rod groove (37), and the circular hole is communicated with the top surface of the end seat (11).

5. The steam turbine assembled sound insulation casing structure according to claim 1, characterized in that: A U-shaped rubber pad (13) is embedded and installed on the bottom surface of the end seat (11), and an integrated U-shaped sealing convex ring (14) is provided on the bottom surface of the U-shaped rubber pad (13); a U-shaped sealing groove (22) corresponding to the U-shaped sealing convex ring (14) is opened on the top surface of the top seat (21), and the U-shaped sealing convex ring (14) is squeezed into the U-shaped sealing groove (22).

6. The steam turbine assembled sound insulation casing structure according to claim 1, characterized in that: The top surface of the housing body (1) is provided with a plurality of interfaces (12), and the surface of the sound insulation pad (4) is provided with a plurality of circular notches (41) corresponding to the interfaces (12).

7. The steam turbine assembled sound insulation casing structure according to claim 1, characterized in that: A plurality of T-shaped rubber clamps (15) are fixed to the inner wall of the housing body (1); a plurality of clamp holes (42) corresponding to the T-shaped rubber clamps (15) are provided on the surface of the sound insulation cotton pad (4); and the bottom end of the T-shaped rubber clamp (15) passes through the clamp hole (42) to the inner side of the sound insulation cotton pad (4).

8. The steam turbine assembled sound insulation casing structure according to claim 7, characterized in that: A cavity (151) is formed inside the T-shaped rubber clamp (15).

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