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Well lid structure for reducing and avoiding vertical draining well blowout and response method thereof

A technology for manhole covers and shafts, applied in drainage structures, underwater structures, infrastructure engineering, etc., can solve the problems of less research and achieve the effects of increasing the channel area, weakening the blowout intensity, and inhibiting the occurrence of blowouts

Active Publication Date: 2020-09-25
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few researches at home and abroad on the method of reducing blowout in urban pipe network shafts

Method used

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  • Well lid structure for reducing and avoiding vertical draining well blowout and response method thereof
  • Well lid structure for reducing and avoiding vertical draining well blowout and response method thereof
  • Well lid structure for reducing and avoiding vertical draining well blowout and response method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A schematic diagram of the manhole cover structure for reducing blowout in the drainage shaft is shown in figure 1 and figure 2 , the shaft 3 communicates with the atmosphere on the ground 1 and the underground pipeline 2 , and the well cover 4 assembly is arranged on the top of the shaft 3 . The structure of manhole cover 4 components is as follows Figure 3 to Figure 5 As shown, it mainly includes the following components: well cover 4 cavities, well cover 4 bases, well cover 4 supports, well cover 4 hinges, well cover 4 ribs, rib track 11, air hole 12, middle hole 13, well cover 4 handles, Limit soft rope 15, hook, cushion 17. The well cover 4 is a conical body with a circular (or square) flat plate. When in use, the flat plate is placed horizontally and flush with the ground 1. The manufacturing material is generally cast iron, plastic, concrete or synthetic material, and the gravity is G.

[0035] The shape of the cavity of the well cover 4 is an inverted cone,...

Embodiment 2

[0041] Embodiment two: if Figure 6 , the well cover structure can also include a well cover base 18, a rib that is symmetrically welded on the two side walls of the well cover, and two flaps 21 that are rotated inside the well cover base 18; It is used to connect the driving part 19 of the driving link and the driven part 20 for connecting the turning plate 21; the turning plate 21 includes a rotating shaft 22 and a semicircular plate body, and the two semicircular plate bodies are completely covered when closed. Inside the well cover base 18, a plurality of reinforcing plates 23 that are mutually symmetrical to each other at 90° to the axis of the rotating shaft 22 are arranged between the rotating shaft 22 and the plate body; The first connecting rod 24 and the second connecting rod 25 connected by the interference fit of the rotating shaft 22, and the third connecting rod 26 hinged between the first connecting rod 24 and the second connecting rod 25, the first connecting r...

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Abstract

The invention relates to a well lid structure of reducing and avoiding vertical draining well blowout and a response method thereof. A vertical well communicates with earth atmosphere and a sunken pipe, a well lid subassembly is arranged at the top of the vertical well, the well lid subassembly is a cone with a slab at one end, and when in use, the slab is horizontally placed and is flush with theground. The well lid subassembly includes a well lid cavity, a mesopore, a plurality of ventilation holes and an installation subassembly, the mesopore is formed at the center of the slab of the bottom surface of the well lid cavity, and the plurality of ventilation holes and the installation subassembly are arranged on the surface of the cone; the installation subassembly comprises an opening hole, a limiting measure and a well lid support; the limiting measure limits the maximum automatic opening angle of the well lid; the well lid is fixed in ground through the well lid support; a well lidhinge is fixed on the well lid support; a well lid ribbed plate is arranged on the outer edge of the well lid; the well lid ribbed plate is provided with an "S"-shaped ribbed plate track; and the well lid hinge slides in the ribbed plate track. The structure presets a multi-stage reduction and avoidance vertical well blowout function and emergency measures, so that emergency blowout accidents areautomatically coped with and reduced and avoided, the well lid structure is safe and reliable, and the using method is convenient, safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering and water conservancy engineering, and in particular relates to a well cover structure and a response method for reducing blowout of a drainage shaft. Background technique [0002] Pipeline water flow widely exists in people's life and production, such as urban sewage pipe network, hydropower station (water intake) buildings, etc., these pipes are often placed horizontally due to the gravity of water flow. For the purpose of drainage (gas) or as a maintenance channel, vertical channels are often provided on horizontal pipes, also known as "shafts". [0003] In the urban municipal pipe network, there are a large number of shafts used as maintenance channels. The shafts connect the underground drainage network and the surface atmosphere, and also have functions such as water collection, drainage, and steam exhaust. Usually, these shafts are sealed by manhole covers. is turned on. Gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14E03F5/02E03F5/08
CPCE02D29/14E02D29/1418E02D29/1436E02D29/1463E03F5/02E03F5/08
Inventor 王芳芳吴时强吴修锋戴江玉高昂杨倩倩张宇黄标王小东崔鹏飞徐鹏俞雷赵宇航徐准沙海明杜庭宝何建明樊顾飞
Owner NANJING HYDRAULIC RES INST
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