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Installation and lowering device for large penstock on high slope and penstock installation method

A pressure steel pipe and slope technology, which is applied in the directions of pipes/pipe joints/fittings, pipe laying and maintenance, mechanical equipment, etc., to achieve the effect of increasing safety, speeding up construction period and convenient installation.

Active Publication Date: 2018-01-30
CHINA GEZHOUBA GRP MECHANICAL & ELECTRICAL CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water diversion penstock is divided into many steel pipe sections, the maximum weight of a single section is 26.5 tons. According to the layout characteristics of the penstock, there are not only plane turns but also elevation turns in the installation of the steel pipes. Due to the complex terrain on both sides of the mountain depression, no special passages have been set up along the way. Large-scale mechanical hoisting equipment cannot enter, and steel pipes are not easy to be transported to the installation location. It is necessary to innovate and develop a device and method suitable for the installation of large-scale pressure steel pipes on high slopes to solve construction technical problems and achieve smooth implementation of the project.

Method used

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  • Installation and lowering device for large penstock on high slope and penstock installation method
  • Installation and lowering device for large penstock on high slope and penstock installation method
  • Installation and lowering device for large penstock on high slope and penstock installation method

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Experimental program
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Effect test

Embodiment 1

[0051] Such as Figure 1 to Figure 13 As shown, a descending passage is set on the side of the high slope, and the descending passage is composed of a horizontal section and a slope section, and the slope section includes a first steep slope section, a gentle slope section and a second slope section. The installation and release device for large-scale pressure steel pipes on high slopes includes trolleys 30 with rotating parts, rails and traction devices for traction trolleys 30; The support part, the support part includes a front support part, a middle support part and a rear support part, and the front support part and / or the rear support part are detachably connected with the steel pipe bracket 3; Set up the towing device.

[0052] Preferably, the concrete layer 16 is set under the track, if the original layer 18 (original foundation) is uneven, a filling layer 17 can be set between the original layer 18 and the concrete layer 16, and the filler of the filling layer 17 can...

Embodiment 2

[0080] Embodiment two: basically the same as embodiment one, the difference is:

[0081] Both the top plate 7 of the wheel set and the bottom plate 8 of the trolley bracket in Embodiment 1 adopt flanges, which can enhance the strength of the two components on the one hand, ensure the stable operation of the trolley 30, and ensure more precise connection of the two components on the other hand. .

[0082] Such as Figure 14 As shown, the penstock adopts two pipelines (line 1 and line 2) in the open pipe layout. According to the layout characteristics, in consideration of safety and construction progress, each line is equipped with a set of lowered traction devices. The advantages of this layout are Alternate lowering operations can be realized, which avoids cross operations in the construction of lowered parts, first of all, it is guaranteed in terms of safety, and secondly, it avoids the transfer of construction equipment caused by single-line operations, resulting in increas...

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Abstract

The invention discloses a high-slope large-scale steel penstock mounting and unloading device which comprises a trolley with a rotary part, a rail and a traction device for dragging the trolley. A high-slope large-scale steel penstock mounting method comprises the following steps: (1) carrying out foundation measurement and rail laying; (2) designing and arranging the traction device; (3) manufacturing and mounting the trolley and carrying out a load test; (4) transporting steel penstocks to unloaded positions; (5) swerving the trolley and the steel penstocks; (6) unloading the steel penstocks at a first abrupt slope section; (7) swerving the trolley and the steel penstocks at a gentle slope plane; (8) unloading the steel penstocks at a second abrupt slope section; (9) putting the steel penstocks in position; and (10) disassembling and moving out the trolley. According to the high-slope large-scale steel penstock mounting and unloading device and the high-slope large-scale steel penstock mounting method, the technological problems including laying of the rail and the traction device for mounting the steel penstocks at a complicated massif terrain, design of the mounting and unloading device, horizontal transportation, right-angle swerving, unloading in a high-slope, plane swerving and in-position unloading of the steel penstocks can be solved, construction is safe and efficient, and economy and practicality are realized.

Description

technical field [0001] The invention relates to the field of lowering and installation of large penstock steel pipes in specific environments such as construction sites, and in particular to a device for installing and lowering large penstock steel pipes on high slopes and a method for installing penstock steel pipes. Background technique [0002] Hydropower stations are mostly built between mountains and valleys. In order to reduce the amount of engineering excavation, the water diversion penstocks are usually arranged as open pipes and laid according to the mountain topography. Due to the rugged and narrow construction roads on site, it has brought great difficulties and challenges to the transportation and installation of large penstock joints. For example, a steel pipe in a power station is about 780m long, with a drop of about 350m and a longitudinal gradient ranging from 18.5° to 40°. The diameter of the pipe gradually changes from 4.4m to 4.0m, 3.8m, 3.4m and 2.4m, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/06
CPCF16L1/06
Inventor 朱建波徐斌魏军崔慧丽秦少云
Owner CHINA GEZHOUBA GRP MECHANICAL & ELECTRICAL CONSTR
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