CN213980888U

CN213980888U - Protective device of steam turbine

Info

Publication number: CN213980888U
Application number: CN202022218271.8U
Authority: CN
Inventors: 梅天娇; 朱明明
Original assignee: Nanjing Turbine Power Technology Co ltd
Current assignee: Nanjing Turbine Power Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-08-17
Anticipated expiration: 2030-09-30

Abstract

A protection device of a steam turbine comprises an equipment base, wherein a rack is arranged on the equipment base, a support base is arranged at the end part of the equipment base, a protective cover is arranged between the support bases, fixing lugs are arranged on the protective cover, a vertical support is arranged on the support base, a fixing frame is arranged on the vertical support, a lifting sliding block is arranged at the end part of the fixing frame, a lifting sliding groove is formed in the vertical support, the lifting sliding block is embedded in the lifting sliding groove, a threaded rod is arranged in the middle of the lifting sliding groove, sliding rods are arranged in the rest lifting sliding grooves, and the lifting sliding block is sleeved on the threaded rod and the sliding rods; the support base is equipped with the translation spout, be equipped with the cylinder in the middle of the translation spout, the cylinder is equipped with pneumatic telescopic link, pneumatic telescopic link tip is equipped with the translation slider, the translation slider is connected the protection casing. The utility model discloses a translation formula protection casing, convenient dismantlement and maintenance have reduced the danger that leads to by accident factor.

Description

Protective device of steam turbine

Technical Field

The utility model relates to a steam turbine safety protection technical field, concretely relates to protector of steam turbine.

Background

A steam turbine is a type of turbomachinery that interconverts thermal energy of a gas with mechanical work. The steam turbine is a thermal turbine which takes steam as a working medium and converts the heat energy of the steam into mechanical work.

Electric power is a main power of modern production and is an important condition for improving the material culture life of people, and the electric power consumption becomes one of important marks for measuring the high and low national technical and economic development level. The power industry is an industry that converts energy resources into electricity, and the development of the industry marks the degree of development of a country. At present, the main uses of steam turbines are as follows.

The first use is thermal power generation. The thermal power generation adopts fossil fuels such as coal, petroleum and natural gas as primary energy, water in a boiler is heated into high-pressure and high-temperature steam through combustion of the fossil fuels, the steam enters a steam turbine to expand and do work, steam heat energy is converted into mechanical energy and drives a generator to work, and finally the mechanical energy is converted into electric energy.

The second purpose is driving. As a prime motor, the steam turbine is widely applied to important fields of energy, electric power, ships, chemical industry, metallurgy, transportation, national defense and the like. In the industrial aspect, the power equipment such as a large blower, a compressor, a fan, a pump and the like can be driven; in the aspect of ships, the propeller can drive aircraft carriers, nuclear submarines, destroyers and the like.

In the prior art, the protective cover adopted for protecting the steam turbine is very difficult to disassemble and maintain, and only has the function of protection, so that the function is very single. The heat energy contained in the steam generated by the steam turbine is also considerable, and the sealing performance is not high in the prior art, so that the energy is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art and providing a protective device of a steam turbine.

The protection device of the steam turbine is characterized by comprising an equipment base, wherein a rack is arranged on the equipment base, a support base is arranged at the end part of the equipment base, a protection cover is arranged between the support bases, fixing lugs are arranged on the protection cover, a vertical support is arranged on the support base, a fixing frame is arranged on the vertical support, a lifting sliding block is arranged at the end part of the fixing frame, a lifting sliding groove is formed in the vertical support, the lifting sliding block is embedded in the lifting sliding groove, a threaded rod is arranged in the lifting sliding groove of the middle vertical support, sliding rods are arranged in the lifting sliding grooves of the rest vertical supports, the lifting sliding block is sleeved on the threaded rod and the sliding rods, and a lifting motor is arranged at the top end of the;

the support base is equipped with the translation spout, be equipped with the cylinder in the middle of the translation spout, the cylinder is equipped with pneumatic telescopic link, pneumatic telescopic link tip is equipped with the translation slider, the translation slider is connected the protection casing.

Preferably, the number of the support bases is two, and each support base is equal to the number of the equipment bases.

Preferably, the vertical support is at least provided with three groups and the number of the groups is an odd number, each group of the vertical support is provided with two groups and respectively arranged on the support base, the threaded rod is arranged in the middle of the vertical support, and the sliding rod is arranged at the outer side of the vertical support.

Preferably, the pneumatic telescopic rod is provided with two and is symmetrical about the cylinder.

Preferably, the translation slider is a U-shaped block, and a vertical rod of the translation slider is perpendicular to the protective cover and is connected with the protective cover.

Preferably, fixed frame is equipped with fixed muntin and compresses tightly the strip, fixed muntin is equipped with the fixed slot for U type piece and inboard, fixed ear inlays in the fixed slot, be equipped with the sealing strip in the fixed slot, the montant tip of fixed muntin is equipped with the location strip, the location strip perpendicular to fixed muntin place plane, compress tightly the strip perpendicular to the location strip and with the location strip is connected.

Preferably, the side surface of the equipment base is provided with a rubber ring.

The utility model has the advantages that:

the protective cover is convenient and simple to mount and dismount through the translational protective cover, meanwhile, the vertically lifting fixed frame is adopted, the protective cover is guaranteed to be completely abutted through the pressing strip, and the fixed lugs are wrapped through the fixed vertical frames to realize the sealing of the protective cover; the translation of the protective cover is realized through the combination of the air cylinder, the pneumatic telescopic rod and the sliding block which are arranged in the bracket base, and all the components of the combination belong to common parts, so that the installation, the maintenance and the replacement are convenient; be equipped with the sealing washer in equipment base side, compress tightly the strip and provide the packing force between protection casing and the equipment base, improved the sealed effect of protection casing.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the description of embodiments of the invention, and are not intended to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a shield closure configuration;

FIG. 3 is a schematic cross-sectional view of the base of the present invention;

FIG. 4 is a schematic view of a fixing frame structure;

labeled as: 1-support base, 2-equipment base, 3-frame, 4-protective cover, 5-fixing lug, 6-vertical support, 7-fixing frame, 8-lifting slide block, 9-lifting slide groove, 10-slide rod, 11-threaded rod, 12-lifting motor, 13-translation slide groove, 14-translation slide block, 15-pneumatic telescopic rod, 16-air cylinder, 17-rubber ring, 18-pressing strip, 19-positioning strip, 20-fixing vertical frame and 21-fixing groove.

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.

According to shown in fig. 1-4, a protector of steam turbine includes equipment base 2, be equipped with frame 3 on the

equipment base

2, 2 tip of equipment base are equipped with support base 1, be equipped with protection casing 4 between the support base 1, establish fixed ear 5 on the protection casing 4, be equipped with vertical support 6 on the support base 1, be equipped with fixed frame 7 on the vertical support 6, the tip of fixed frame 7 is equipped with lifting slide 8, vertical support 6 is equipped with lift spout 9, lifting slide 8 inlays in lift spout 9, be equipped with threaded rod 11 in the lift spout 9 of middle vertical support 6, be equipped with slide bar 10 in the lift spout 9 of all the other vertical supports 6, lifting slide 8 has all been cup jointed on threaded rod 11 and the slide bar 10, the 11 tops of threaded rod are equipped with elevator motor 12.

Support base 1 is equipped with translation spout 13, is equipped with cylinder 16 in the middle of the translation spout 13, and cylinder 16 is equipped with pneumatic

telescopic rod

15, and 15 tip of pneumatic telescopic rod are equipped with translation slider 14, and translation slider 14 connects protection casing 4.

Fixed frame 7 is equipped with fixed muntin 20 and compresses tightly strip 18, and fixed muntin 20 is U type piece and inboard is equipped with fixed slot 21, and fixed ear 5 inlays in fixed slot 21, is equipped with the sealing strip in the fixed slot 21, and the montant tip of fixed muntin 20 is equipped with location strip 19, and location strip 19 perpendicular to fixed muntin 20 place plane, and compress tightly strip 18 perpendicular to location strip 19 and be connected with location strip 19.

The working principle is as follows: the cylinder 16 is started, the pneumatic telescopic rod 15 is contracted and drives the translation sliding block 14 to move along the translation sliding chute 13. The translation slider 14 moves to drive the protective cover 4 to move towards each other until the protective cover 4 abuts against the equipment base 2 and contacts with the rubber ring 17.

The lifting motor 12 is electrified to rotate the threaded rod 11, the threaded rod 11 rotates to enable the lifting slide block 8 to descend, and meanwhile the lifting slide block 8 on the slide rod 10 descends synchronously. The fixed frame 7 descends along with the lifting slide block 8 until the positioning strip descends along the side edge of the protective cover 4. The pressing strip 18 presses the protection cover 4 towards each other through the inner side inclined plane along the semicircular inclined plane at the top of the protection cover 4, so that the rubber ring 17 is pressed on the inner side of the protection cover 4.

The protective cover 4 can be selectively provided with a device for collecting steam according to actual conditions.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The protection device of the steam turbine is characterized by comprising an equipment base, wherein a rack is arranged on the equipment base, a support base is arranged at the end part of the equipment base, a protection cover is arranged between the support bases, fixing lugs are arranged on the protection cover, a vertical support is arranged on the support base, a fixing frame is arranged on the vertical support, a lifting sliding block is arranged at the end part of the fixing frame, a lifting sliding groove is formed in the vertical support, the lifting sliding block is embedded in the lifting sliding groove, a threaded rod is arranged in the lifting sliding groove of the middle vertical support, sliding rods are arranged in the lifting sliding grooves of the rest vertical supports, the lifting sliding block is sleeved on the threaded rod and the sliding rods, and a lifting motor is arranged at the top end of the threaded rod;

2. The steam turbine shroud assembly of claim 1, wherein there are two of said support mounts, each of said support mounts being identical to said equipment mount.

3. The steam turbine protection device according to claim 1, wherein the number of the vertical supports is at least three and is odd, two vertical supports are provided for each set and are respectively provided on the support base, the threaded rod is provided in the middle vertical support, and the sliding rod is provided in the outer vertical support.

4. The steam turbine protection device according to claim 1, wherein the pneumatically extendable rod is provided in two and symmetrical to the cylinder.

5. The steam turbine protection device according to claim 1, wherein the translator slider is a U-shaped block, and a vertical rod of the translator slider is perpendicular to the protection cover and is connected to the protection cover.

6. The protection device of a steam turbine according to claim 1, characterized in that the fixing frame is provided with a fixing vertical frame and a pressing strip, the fixing vertical frame is a U-shaped block, a fixing groove is formed in the inner side of the fixing vertical frame, the fixing lug is embedded in the fixing groove, a sealing strip is arranged in the fixing groove, a positioning strip is arranged at the end of a vertical rod of the fixing vertical frame, the positioning strip is perpendicular to the plane where the fixing vertical frame is located, and the pressing strip is perpendicular to the positioning strip and connected with the positioning strip.

7. The steam turbine protector according to claim 1, wherein said equipment base is provided with rubber rings on its sides.