CN218644346U

CN218644346U - Detachable housing of steam turbine

Info

Publication number: CN218644346U
Application number: CN202222779333.1U
Authority: CN
Inventors: 邢蕾; 王莹
Original assignee: YINCHUAN ENERGY INSTITUTE
Current assignee: YINCHUAN ENERGY INSTITUTE
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-17
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a detachable cover shell of a steam turbine, which relates to the technical field of steam turbine cover shells and comprises a lower shell, wherein the upper end of the lower shell is provided with an upper shell, and the upper shell and the lower shell are both provided with a steam turbine cavity; the bottom of the upper shell is provided with a limiting rod, a limiting groove is formed in the lower shell, and the limiting groove is connected with the limiting rod in a sliding mode; the side face of the lower shell is provided with a first connecting plate, and the upper end of the first connecting plate is connected with the bottom of the electric push rod. A plurality of logical grooves have been seted up on the housing surface of this detachable housing of steam turbine, will be fixed on last housing surface with the mounting panel that external equipment links to each other through block mechanism, need not to use extra instrument when the installation is dismantled, can realize dismantling fast and installing through the mode of pressing down with the plug, be fit for maintaining the small part of housing, and use under the condition that need not open whole housing, compensatied prior art's defect, increased the practicality.

Description

Detachable housing of steam turbine

Technical Field

The utility model relates to a steam turbine housing technical field specifically is a detachable housing of steam turbine.

Background

The steam turbine, i.e. steam turbine engine, is a rotary steam power device, and its working principle is that high-temperature high-pressure steam passes through fixed nozzle and becomes accelerated air current, then sprays on the blade, makes the rotor equipped with blade row rotate, and does work to the outside at the same time, the steam turbine is the main equipment of modern thermal power plant, also is used in metallurgical industry, chemical industry, naval vessel power device, the outside of steam turbine is the encloser, when maintaining the inside of steam turbine, need open the encloser, and the existing steam turbine encloser has many defects, just as:

for example, the split mounting type steam turbine housing with the publication number of CN103195511B is convenient for heat dissipation of side plates and personnel to enter the steam turbine housing by arranging a plurality of door leaves on the surface of the housing, the technical scheme is only suitable for large-scale steam turbines, and for some small and medium-sized steam turbines, the personnel cannot enter the housing for maintenance, so that the technical scheme has a limited application range and cannot really and effectively solve the problem that the steam turbine housing is inconvenient to disassemble and maintain;

in addition, most of the existing steam turbine housing is of an integrally formed structure, required equipment is usually arranged in the housing, when the equipment needs to be maintained, the equipment is maintained by opening the housing, if only one part needs to be maintained, the whole housing also needs to be opened, unnecessary troubles are increased, and therefore the maintenance efficiency is low, and the labor intensity is high.

We have therefore proposed a turbine removable shroud to facilitate the solution of the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detachable housing of steam turbine to solve the problem that the maintenance is not convenient for dismantle the maintenance and maintenance intensity of labour is big on the current market that above-mentioned background art provided.

In order to achieve the above object, the utility model provides a following technical scheme: a detachable casing of a steam turbine comprises a lower casing, wherein an upper casing is arranged at the upper end of the lower casing, and a steam turbine cavity is formed in each of the upper casing and the lower casing;

the bottom of the upper shell is provided with a limiting rod, a limiting groove is formed in the lower shell, and the limiting groove is connected with the limiting rod in a sliding mode;

the side surface of the lower shell is provided with a first connecting plate, the upper end of the first connecting plate is connected with the bottom of the electric push rod, and the upper end of the electric push rod is connected with a second connecting plate on the side surface of the upper shell;

go up the surface of casing and seted up logical groove, and lead to the groove and pass through block mechanism with the mounting panel and be connected to the mounting panel is connected with external equipment.

Adopt above-mentioned technical scheme can make this housing can conveniently open to maintain, can make the upper casing can slide from top to bottom on the casing down, realize opening and shutting, cooperation electric telescopic handle can realize a key and open and close the housing, and in addition, a plurality of logical grooves have been seted up on the housing surface, will be fixed on the upper casing surface with the mounting panel that external equipment links to each other through block mechanism, need not to use extra instrument when the installation is dismantled, remedied prior art's defect, increased the practicality.

As the utility model discloses a preferred technical scheme, the bottom of casing is provided with 4 bases down, and the bottom of base is provided with anti-skidding line.

By adopting the technical scheme, the device can be provided with the base adjusting mechanism, and the height of the base can be flexibly adjusted according to the terrain.

As the preferred technical scheme of the utility model, the number of the limiting rods is 4, and the limiting rods are symmetrically arranged around the center of the upper shell;

the electric push rods are symmetrically arranged in front and back of the center of the lower shell, and the number of the electric push rods is at least 2.

Adopt above-mentioned technical scheme can make the upper casing can slide from top to bottom on the casing down, realize opening and shutting, and the cooperation electric telescopic handle can realize that a key opens and closes the housing.

As an optimal technical solution of the utility model, the block mechanism includes: the upper end of the upper shell is provided with a jack, and the jack is connected with the insert block at the lower end of the mounting plate in a clamping manner.

By adopting the technical scheme, the mounting plate can be conveniently detached and mounted, and the detaching efficiency is improved.

As a preferred technical scheme of the utility model, an inner groove is arranged inside the upper shell, a stop block is arranged in the inner groove and connected with a spring, and the stop block is connected with a dent on the surface of the insert block in a clamping way;

the check block is connected with the inclined block, the inner part of the upper shell is connected with the pressure rod in a sliding mode, the pressure rod is pressed to drive the inclined block to move, and therefore the check block is separated from the dent on the surface of the inserting block.

By adopting the technical scheme, the mounting plate can be conveniently detached and mounted, and the dismounting efficiency is further improved.

As the utility model discloses an optimized technical scheme, the outer edge that leads to the groove is provided with the sealing washer.

By adopting the technical scheme, the housing is good in sealing effect, high-pressure gas is not easy to leak, and the safety is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the detachable housing of the steam turbine can be conveniently opened so as to be maintained, the upper housing and the lower housing are connected through the limiting rod and the limiting groove, the upper housing can slide up and down on the lower housing to realize opening and closing, and the housing can be opened and closed by one key by matching with an electric telescopic rod, so that the aim of quickly maintaining the housing is fulfilled, and the practicability is increased;

2. a plurality of logical grooves have been seted up on the housing surface of this detachable housing of steam turbine, will be fixed on last housing surface with the mounting panel that external equipment links to each other through block mechanism, need not to use extra instrument when the installation is dismantled, can realize dismantling fast and installing through the mode of pressing down with the plug, be fit for maintaining the small part of housing, and use under the condition that need not open whole housing, compensatied prior art's defect, increased the practicality.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic perspective view of the present invention;

fig. 4 is a schematic perspective structural view of the present invention;

fig. 5 is a bottom view schematic diagram of the present invention;

fig. 6 is a schematic structural view of the engaging mechanism of the present invention.

In the figure: 1. a lower housing; 2. a turbine chamber; 3. an upper housing; 4. a limiting rod; 5. a limiting groove; 6. a first connecting plate; 7. an electric push rod; 8. a second connecting plate; 9. a through groove; 10. a seal ring; 11. a jack; 12. mounting a plate; 13. an external device; 14. inserting a block; 15. an inner tank; 16. a stopper; 17. a spring; 18. a sloping block; 19. a pressure lever; 20. a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, the present invention provides a technical solution: a detachable cover shell of a steam turbine comprises a lower shell 1, wherein an upper shell 3 is arranged at the upper end of the lower shell 1, and a steam turbine cavity 2 is formed in each of the upper shell 3 and the lower shell 1; the bottom of the lower shell 1 is provided with 4 bases 20, the bottom of each base 20 is provided with anti-skid grains, and the bases 20 at the bottom of the lower shell 1 are adjusted according to the terrain, so that the lower shell 1 can be stably arranged on the ground and does not incline and shake;

the bottom of the upper shell 3 is provided with a limiting rod 4, a limiting groove 5 is formed in the lower shell 1, and the limiting groove 5 is connected with the limiting rod 4 in a sliding manner; 4 limiting rods 4 are arranged, and the limiting rods 4 are symmetrically arranged front and back and left and right relative to the center of the upper shell 3; the electric push rods 7 are symmetrically arranged in front and back of the center of the lower shell 1, at least 2 electric push rods 7 are arranged, a first connecting plate 6 is arranged on the side surface of the lower shell 1, the upper end of the first connecting plate 6 is connected with the bottom of the electric push rod 7, and the upper end of the electric push rod 7 is connected with a second connecting plate 8 on the side surface of the upper shell 3; when the upper shell 3 needs to be opened, the electric push rod 7 is started by the operating switch, the electric push rod 7 pushes the upper shell 3 to be opened, so that the steam turbine equipment in the steam turbine cavity 2 can be maintained, and when the upper shell 3 slides up and down relative to the lower shell 1, the limiting rod 4 slides in the limiting groove 5, so that the upper shell 3 is ensured not to be inclined or separated from the lower shell 1;

a through groove 9 is formed in the surface of the upper shell 3, the through groove 9 is connected with the mounting plate 12 through a clamping mechanism, and the mounting plate 12 is connected with an external device 13; the engaging mechanism includes: the upper end of the upper shell 3 is provided with a jack 11, the jack 11 is clamped and connected with an insert block 14 at the lower end of the mounting plate 12, an inner groove 15 is formed in the upper shell 3, a stop 16 is arranged in the inner groove 15, the stop 16 is connected with a spring 17, and the stop 16 is clamped and connected with a dent on the surface of the insert block 14; dog 16 is connected with sloping block 18, and go up the inside sliding connection depression bar 19 of casing 3, press depression bar 19 and drive sloping block 18 and remove, and then make dog 16 and the indenture on inserted block 14 surface break away from the block, the outer edge of logical groove 9 is provided with sealing washer 10, when maintaining equipment under the condition of not opening last casing 3, press the depression bar 19 on casing 3 surface, depression bar 19 drives sloping block 18 and slides, sloping block 18 drives dog 16 and slides, thereby make dog 16 and the indenture on inserted block 14 surface break away from the block, take mounting panel 12 off from logical groove 9, maintain external equipment 13 bottom mounting panel 12.

The working principle is as follows: firstly, adjust the base 20 at the bottom of the lower shell 1 according to the terrain, ensure that the lower shell 1 can be stably arranged on the ground, and does not incline and rock, when the upper shell 3 needs to be opened, the operation switch starts the electric push rod 7, the electric push rod 7 pushes the upper shell 3 to be opened, thereby the turbine equipment in the turbine cavity 2 can be maintained, when the upper shell 3 slides up and down relative to the lower shell 1, the limit rod 4 slides in the limit groove 5, thereby ensuring that the upper shell 3 is not inclined or separated from the lower shell 1, when the equipment is maintained under the condition of not opening the upper shell 3, the pressure rod 19 on the surface of the upper shell 3 is pressed, the pressure rod 19 drives the inclined block 18 to slide, the inclined block 18 drives the stop block 16 to slide, thereby the stop block 16 is separated from the dent on the surface of the insertion block 14, the mounting plate 12 is taken down from the through groove 9, and the external equipment 13 at the bottom of the mounting plate 12 is maintained.

To thereby carry out a series of tasks, the contents of which are not described in detail in the present specification are known to those skilled in the art.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A detachable cover casing of a steam turbine comprises a lower casing (1), wherein an upper casing (3) is arranged at the upper end of the lower casing (1), and a steam turbine cavity (2) is formed in each of the upper casing (3) and the lower casing (1);

the method is characterized in that:

the bottom of the upper shell (3) is provided with a limiting rod (4), a limiting groove (5) is formed in the lower shell (1), and the limiting groove (5) is connected with the limiting rod (4) in a sliding mode;

a first connecting plate (6) is arranged on the side surface of the lower shell (1), the upper end of the first connecting plate (6) is connected with the bottom of an electric push rod (7), and the upper end of the electric push rod (7) is connected with a second connecting plate (8) on the side surface of the upper shell (3);

go up the surface of casing (3) and seted up logical groove (9), and lead to groove (9) and be connected through block mechanism with mounting panel (12) to mounting panel (12) are connected with external equipment (13).

2. The removable casing of a steam turbine according to claim 1, characterized in that the bottom of the lower casing (1) is provided with 4 bases (20) and the bottom of the bases (20) is provided with anti-skid threads.

3. The removable cover of the steam turbine according to claim 1, wherein the number of the limiting rods (4) is 4, and the limiting rods (4) are symmetrically arranged in front and back and left and right with respect to the center of the upper casing (3);

the electric push rods (7) are symmetrically arranged in front and back of the center of the lower shell (1), and the number of the electric push rods (7) is at least 2.

4. The removable cover for a steam turbine according to claim 1, wherein the engaging means comprises: the upper end of the upper shell (3) is provided with a jack (11), and the jack (11) is clamped and connected with an insert block (14) at the lower end of the mounting plate (12).

5. The removable steam turbine shroud according to claim 4, characterized in that the upper casing (3) has an internal groove (15) formed therein, and a stopper (16) is disposed in the internal groove (15), and the stopper (16) is connected to the spring (17), and the stopper (16) is engaged with the indent on the surface of the insert (14);

the stop block (16) is connected with the inclined block (18), the upper shell (3) is connected with a pressure rod (19) in a sliding mode, the pressure rod (19) is pressed to drive the inclined block (18) to move, and then the stop block (16) is disengaged from the dent on the surface of the inserting block (14).

6. Cover shell according to any of claims 1 to 5, characterized in that the outer edges of said through slots (9) are provided with sealing rings (10).