CN219795136U

CN219795136U - Auxiliary platform for upper tail water and lower tail water of taper pipe entrance door of large-sized hydraulic generator

Info

Publication number: CN219795136U
Application number: CN202321194077.8U
Authority: CN
Inventors: 曾凡强; 董钟明; 周玉国; 朱晨阳; 陈典龙; 江洋
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2023-05-17
Filing date: 2023-05-17
Publication date: 2023-10-03
Anticipated expiration: 2033-05-17

Abstract

The upper tail water and lower tail water auxiliary platform of the large-scale hydraulic generator taper pipe entrance door comprises a taper pipe door frame, lifting lugs and a platform bottom plate, wherein the lifting lugs are arranged above the taper pipe door frame, the lower end of the taper pipe door frame is vertically connected with the platform bottom plate through a foundation frame, and the side part of the platform bottom plate is connected with an escalator safety cage; the device can provide safety protection for maintenance personnel who initially go down the tail water, avoid potential safety hazards and psychological shadows for patients with high terrorism, and provide powerful guarantee for safe and stable operation of the unit.

Description

Auxiliary platform for upper tail water and lower tail water of taper pipe entrance door of large-sized hydraulic generator

Technical Field

The utility model relates to the field of hydropower station overhaul devices, in particular to an upper and lower tail water auxiliary platform for a taper pipe entrance door of a large-sized hydraulic generator.

Background

The existing cooling system for air cooling of the hydroelectric generating set of the hydropower station generally has two types of primary cooling and secondary cooling, but from the cooling effect, the primary cooling effect is much better than the secondary cooling effect, the current primary cooling adopts a forehearth or a runner cover plate to take water, then the water passes through a water filter and a water pump to reenter an air cooler of the generating set and a cooling water system of an oil cooler, water after absorbing heat is discharged to a factory building leakage drainage water collection well, and water is pumped out of the factory building to tail water through a leakage drainage pump.

The tail water taper pipe is up to 20 meters to the bottom of the tail water pipe, so that a worker has a great potential safety hazard in the process of lifting and lowering the tail water taper pipe in daily maintenance, tools adopted by the tail water taper pipe door for lifting and lowering the tail water at the present stage are provided with a rope ladder climbing device, the rope ladder climbing device is used for overhauling the worker to have strong psychological quality and lasting physical strength, and the self climbing device is used for skilled technology and has great safety risks.

Disclosure of Invention

In view of the technical problems existing in the background art, the large-sized hydraulic generator taper pipe entrance door upper and lower tail water auxiliary platform can provide safety protection for maintenance personnel who initially enter the tail water, avoid potential safety hazards and psychological shadows for patients suffering from high terrorism, and provide powerful guarantee for safe and stable operation of units.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a large-scale hydraulic generator taper pipe business turn over people door tail water auxiliary platform from top to bottom, includes taper pipe door frame, lug and platform bottom plate, installs the lug in the top department of taper pipe door frame, and the lower extreme of taper pipe door frame is connected with the platform bottom plate is perpendicular through basic frame, and the staircase safety cage is connected to the lateral part of platform bottom plate.

In the preferred scheme, the lug is installed on the support, the support passes through bolt and spinal canal door frame swing joint.

In the preferred scheme, the guardrail has been installed perpendicularly in the outside of platform bottom plate, and the fly leaf has been installed to one side that is close to the staircase safety cage on the guardrail, and the fixed plate has been installed to other sides on the guardrail, the fly leaf passes through the operating system control and slides from top to bottom along the guardrail.

In the preferred scheme, the inner wall department of guardrail has seted up the spout, and the both sides of fly leaf are equipped with the slide rail and joint in the spout, and the fly leaf is through the spacing slip of slide rail along the spout.

In a preferred embodiment, the lifting system comprises a sling, a fixed pulley and a winding drum; the fixed pulley is arranged on a support above the guardrail, the winding drum is arranged on the lower end face of the platform bottom plate and is close to the escalator safety cage, one end of the sling is connected with the upper end face of the movable plate, the other end of the sling is wound around the fixed pulley and then is wound in the winding drum, the side wall of the winding drum is provided with a crank, and the crank can drive the winding drum to freely rotate along the axis and wind and unwind the sling.

The following beneficial effects can be achieved in this patent:

1. the device can provide protection for maintenance personnel by arranging the platform bottom plate and the guardrails, and avoid potential safety hazards and psychological shadows for patients suffering from high terrorism;

2. the lifting lug component on the device can be used for conveniently installing the safety belt hook and the self-climbing device and providing a reliable supporting point for the safety belt hook and the self-climbing device;

3. the lifting system at the bottom of the device is convenient for controlling the movable plate to open and close, so that an maintainer can enter the platform smoothly in the up-down process, and the safety of the device is further improved.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a plan side view of the overall structure of the present utility model;

FIG. 2 is a top view of the overall structure of the present utility model

FIG. 3 is a plan elevation view of the overall structure of the present utility model;

FIG. 4 is a schematic diagram of a lifting system according to the present utility model;

FIG. 5 is a schematic diagram of a lifting system according to a second embodiment of the present utility model;

in the figure: the elevator comprises a spinal canal door frame 1, a bracket 2, lifting lugs 3, guardrails 4, a movable plate 5, a foundation frame 6, an escalator safety cage 7, a platform bottom plate 8, a sling 9, a fixed pulley 10, a winding drum 11, a crank 12, a sliding chute 13 and a fixed plate 14.

Detailed Description

As shown in fig. 1 to 3, an upper and lower tail water auxiliary platform of a large-sized hydraulic generator taper pipe entrance door comprises a taper pipe door frame 1, lifting lugs 3 and a platform bottom plate 8, wherein the lifting lugs 3 are arranged above the taper pipe door frame 1, the lower end of the taper pipe door frame 1 is vertically connected with the platform bottom plate 8 through a foundation frame 6, and the side part of the platform bottom plate 8 is connected with an escalator safety cage 7; during operation, maintenance workers enter the platform bottom plate 8 through the cone pipe door frame 1 and climb up and down through the escalator safety cage 7, and can also install the self-climbing device on the lifting lug 3 to lift up and down.

The preferable scheme is as shown in fig. 1 to 3, the lifting lug 3 is arranged on the bracket 2, and the bracket 2 is movably connected with the spinal canal door frame 1 through bolts; the safety belt and the self-climbing device can be conveniently disassembled and assembled in the daily maintenance process, and workers can hang the safety belt and the self-climbing device on the lifting lug 3 in the maintenance process, so that a reliable supporting point is provided for the safety device while the use principle of high hanging and resisting of the safety device is ensured.

The preferable scheme is as shown in fig. 2 to 4, the guardrail 4 is vertically arranged on the outer side of the platform bottom plate 8, the movable plate 5 is arranged on one side, close to the escalator safety cage 7, of the guardrail 4, the fixed plate 14 is arranged on the other side, on the guardrail 4, of the movable plate 5, the movable plate 5 is controlled by a lifting system and slides up and down along the guardrail 4, the movable plate 5 is in a closed state under the daily condition, the closed movable plate 5 and the fixed plate 14 are surrounded to form a closed space, so that the personal safety of maintainers is ensured, psychological shadows of a highly terrified patient are reduced, when the movable plate 5 needs to be lifted and opened by the lifting system from the platform bottom plate 8 to the escalator safety cage 7, and then the movable plate 5 can be smoothly moved into the escalator safety cage 7 from the platform bottom plate 8.

As shown in fig. 4 and 5, the inner wall of the guardrail 4 is provided with a sliding groove 13, two sides of the movable plate 5 are provided with sliding rails and are clamped in the sliding groove 13, and the movable plate 5 can slide along the sliding groove 13 in a limiting manner through the sliding rails; the lifting system comprises a sling 9, a fixed pulley 10 and a winding drum 11; the fixed pulley 10 is arranged on the bracket 2 above the guardrail 4, the winding drum 11 is arranged on the lower end surface of the platform bottom plate 8 and is close to the escalator safety cage 7, one end of the sling 9 is connected with the upper end surface of the movable plate 5, the other end of the sling 9 winds the fixed pulley 10 and is then wound in the winding drum 11, the side wall of the winding drum 11 is provided with a crank 12, and the crank 12 can drive the winding drum 11 to freely rotate along the axis and wind and unwind the sling 9;

when the movable plate 5 needs to be lifted, the winding drum 11 can wind the sling 9 only by rotating the crank 12 and driving the winding drum 11 to rotate around the axis of the winding drum 11, and the sling 9 winds the fixed pulley 10 and lifts the movable plate 5 upwards; when the movable plate 5 needs to be lowered, the winding drum 11 only needs to be rotated reversely, and the sling 9 is wound and unwound.

The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims

1. The utility model provides a large-scale hydraulic generator taper pipe business turn over people door tail water auxiliary platform from top to bottom, includes taper pipe door frame (1), lug (3) and platform bottom plate (8), its characterized in that: lifting lugs (3) are arranged above the cone pipe door frame (1), the lower end of the cone pipe door frame (1) is vertically connected with a platform bottom plate (8) through a foundation frame (6), and the side part of the platform bottom plate (8) is connected with an escalator safety cage (7); the guardrail (4) has been installed perpendicularly in the outside of platform bottom plate (8), and fly leaf (5) have been installed to one side that is close to staircase safety cage (7) on guardrail (4), and fixed plate (14) have been installed to other sides on guardrail (4), fly leaf (5) pass through operating system control and slide from top to bottom along guardrail (4).

2. The large-scale hydro-generator cone pipe man door upper and lower tail water auxiliary platform according to claim 1, wherein: the lifting lug (3) is arranged on the bracket (2), and the bracket (2) is movably connected with the vertebral canal door frame (1) through bolts.

3. The large-scale hydro-generator cone pipe man door upper and lower tail water auxiliary platform according to claim 1, wherein: a sliding groove (13) is formed in the inner wall of the guardrail (4), sliding rails are arranged on two sides of the movable plate (5) and are clamped in the sliding groove (13), and the movable plate (5) slides in a limiting mode along the sliding groove (13) through the sliding rails.

4. The large-scale hydro-generator cone pipe man door upper and lower tail water auxiliary platform according to claim 2, wherein: the lifting system comprises a sling (9), a fixed pulley (10) and a winding drum (11); the fixed pulley (10) is arranged on the support (2) above the guardrail (4), the winding drum (11) is arranged on the lower end face of the platform bottom plate (8) and is close to the escalator safety cage (7), one end of the sling (9) is connected with the upper end face of the movable plate (5), the other end of the sling (9) is wound in the winding drum (11) after passing through the fixed pulley (10), the side wall of the winding drum (11) is provided with a crank (12), and the crank (12) can drive the winding drum (11) to freely rotate along the axis and wind and unwind the sling (9).