CN217325707U

CN217325707U - Rectangular folded plate type energy dissipation drop shaft

Info

Publication number: CN217325707U
Application number: CN202122449448.XU
Authority: CN
Inventors: 许靖航; 彭广勇; 卢峰; 熊亮亮; 周乃成
Original assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Current assignee: Shanghai Urban Construction Municipal Engineering Group Co Ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-08-30
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a rectangle folded sheet formula energy dissipation drop shaft, including the well room, the well room is separated into wet room and the dry room that the bottom is linked together by mid-board in it, the water inlet at wet room top is with advancing water piping connection, the delivery port of dry room bottom is with going out water piping connection, wet indoor wall is equipped with a plurality of folded plates, each along its direction of height interval on the upward setting of mutual dislocation between the folded plate, wet indoor wall with form the water guide passageway between the folded plate. The utility model has the advantages that: compared with a drop well of a national standard drawing set, the drop well has two different functional areas of a dry chamber and a wet chamber, and the wet chamber is provided with a folded plate and an energy dissipation pool, so that the efficiency requirements of short distance and large height difference can be met.

Description

Rectangular folded plate type energy dissipation drop shaft

Technical Field

The utility model belongs to the technical field of the technique of municipal drainage and specifically relates to a rectangle folded sheet formula energy dissipation drop shaft.

Background

The mountainous city has complicated terrain and large fall, which causes large height difference between the upstream and the downstream of the drainage pipeline and fast flow speed. In order to avoid the damage of the pipeline caused by long-term hydraulic flushing, the drainage flow rate needs to be controlled to be not more than 10m/s by the metal pipe and not more than 5m/s by the non-metal pipe. Therefore, the energy dissipation measures of the drainage pipelines are very important. According to the national standard, when the drop head is larger than 2.0m, an energy dissipation well needs to be arranged. According to the national standard drawing set, the drop well has three forms, namely a vertical pipe type, a vertical groove type and a step type. The vertical pipe type drop well is suitable for sewage pipes with drop pipe diameter of 200mm and drop difference of 1-6 m; the vertical groove type drop well is suitable for a rainwater and sewage pipe with a drop pipe diameter of 200-400mm and a drop difference of 1-4 m; the stepped drop well is suitable for a rainwater and sewage pipe with a drop pipe diameter of 700-1650mm and a drop difference of 1-2 m. The three types of drop wells have limited application range, and cannot meet the requirements particularly under the condition of solving large-altitude-difference drop water in a short distance.

It is therefore desirable to design a drop shaft to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rectangle folded sheet formula energy dissipation drop shaft according to above-mentioned prior art is not enough, falls into two regions of dry room and wet room with the well room to set up folded plate and energy dissipation pond in the wet room, realized the energy dissipation to big difference in height drop.

The utility model discloses the purpose is realized accomplishing by following technical scheme:

the utility model provides a rectangle folded sheet formula energy dissipation drop shaft which characterized in that: including the well room, the well room is separated into wet room and the dry chamber that the bottom is linked together by mid-board in it, the water inlet at wet room top is with advancing water piping connection, the delivery port of dry chamber bottom is with going out water piping connection, wet indoor wall is equipped with a plurality of folded plates along its direction of height interval, each misplace the setting each other between the folded plate, wet indoor wall with form the water guide passageway between the folded plate.

The arrangement direction of the folded plate is the same as the length direction of the intermediate wall.

The middle partition wall is provided with a plurality of vent holes along the height direction of the middle partition wall, and the arrangement direction of the vent holes is the same as the width direction of the middle partition wall.

Except the folded plate arranged at the water inlet of the wet chamber, the tops of the folded plates close to the inner wall of the wet chamber are respectively provided with a rectifying plate.

An energy dissipation pool is arranged at the bottom of the wet chamber, and a pebble layer is paved at the bottom of the energy dissipation pool.

And a concrete cushion is laid at the bottom of the well chamber.

And a sludge settling groove is formed in the bottom of the drying chamber.

The top of the dry chamber is provided with a shaft communicated with the dry chamber, the top of the shaft is provided with a well cover, and the inner walls of the shaft and the lower part of the shaft in the dry chamber are provided with crawling ladders with protective cages.

And an inspection manhole is arranged at the bottom of the intermediate wall.

The utility model has the advantages that: compared with a drop well of a national standard drawing set, the drop well has two different functional areas of a dry chamber and a wet chamber, and the wet chamber is provided with a folded plate and an energy dissipation pool, so that the efficiency requirements of short distance and large height difference can be met; the vent holes are arranged right below the middle parts of the folded plates, so that ventilation can be realized, smooth drainage is facilitated, and sewage can be prevented from entering the dry chamber from the wet chamber through the vent holes in the position right below the folded plates; the dry chamber is internally provided with a ladder with a protective cage, so that the safety of maintainers can be guaranteed; the bottom of the dry chamber is provided with a sludge settling tank, so that the sludge settling tank can be prevented from silting down-stream pipelines when the peripheral plots are not developed and the amount of sewage is small; simple structure, construction convenience, structure safety.

Drawings

Fig. 1 is a plan view of the rectangular folding plate type energy dissipation drop shaft of the utility model;

fig. 2 is a transverse section view of the rectangular folding plate type energy dissipation drop shaft of the utility model;

fig. 3 is a longitudinal section view of the rectangular folded plate type energy dissipation drop shaft of the utility model.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1-3, the marks 1-16 in the figures are respectively represented as a well chamber 1, a wet chamber 2, a dry chamber 3, an intermediate wall 4, a water inlet pipe 5, a water outlet pipe 6, a shaft 7, a vent hole 8, a fairing plate 9, a folded plate 10, an energy dissipation pool 11, a mud settling tank 12, a ladder stand 13, a well cover 14, a pebble layer 15 and a concrete cushion layer 16.

Example (b): as shown in fig. 1-3, the present embodiment relates to a rectangular folded plate type energy dissipation drop shaft, which mainly includes a well chamber 1, a water inlet pipe 5 and a water outlet pipe 6, wherein the well chamber 1 is divided into a wet chamber 2 and a dry chamber 3 by an intermediate wall 4 therein, i.e., the length, width and height of the two chambers are equal, a water inlet at the top of the wet chamber 2 is connected with the water inlet pipe 5, a water outlet at the bottom of the dry chamber 3 is connected with the water outlet pipe 6, and the bottoms of the wet chamber 2 and the dry chamber 3 are communicated. The inner wall of the wet chamber 2 is provided with a plurality of folded plates 10 at intervals along the height direction, the vertical distance between two adjacent folded plates 10 is 0.8-1.5m, the folded plate 10 at the top is arranged at the water inlet of the wet chamber 2, the folded plates 10 are arranged in a staggered manner, the arrangement direction of the folded plates 10 is the same as the length direction of the intermediate wall 4, the length of the folded plate 10 is 1/2 of the length of the wet chamber 2, a water guide channel is formed between the inner wall of the wet chamber 2 and the folded plate 10, and in the embodiment, the vertical distance between two adjacent folded plates 10 is 1000 mm. An energy dissipation pool 11 is arranged at the bottom of the wet chamber 2, and can perform an energy dissipation function on water flow, and in the embodiment, a pebble layer 15 with the thickness of 800mm is paved at the bottom of the energy dissipation pool 11. The 3 bottoms in dry chamber are equipped with mud groove 12, and before the pipeline along the line landmass was not developed completely, the rivers undersize led, lead to the easy deposit of silt smuggleing secretly in the rivers, and mud groove 12's setting can conveniently be clearly drawn for collect the mud in the rivers, prevent that mud from blockking up low reaches pipeline, in this embodiment, mud groove 12's the degree of depth is 500 mm.

In the embodiment, water flow enters the wet chamber 2 from the water inlet pipe 5, drops to the energy dissipation pool 11 from top to bottom along the folded plate 10 in a left-right staggered manner, enters the sludge settling tank 12 at the bottom of the dry chamber 3 after energy dissipation, and finally is discharged from the water outlet pipe 6.

As shown in fig. 1-3, the intermediate wall 4 is provided with a plurality of ventilation holes 8 along the height direction thereof, the arrangement direction of the ventilation holes 8 is the same as the width direction of the intermediate wall 4, the ventilation holes 8 are located under the right middle of the folded plate 10 and tightly attached to the folded plate 10, the ventilation holes 8 can provide an air convection channel, which is more beneficial for drainage, and can prevent sewage from entering the dry chamber 3 from the wet chamber 2 through the ventilation holes 8, in this embodiment, the diameter of the ventilation holes 8 is 300 mm.

As shown in fig. 1-3, except for the top folded plate 10 (the folded plate 10 disposed at the water inlet of the wet chamber 2), the other folded plates 10 are respectively provided with a rectifying plate 9 at the top of the folded plate 10 close to the inner wall of the wet chamber 2, the rectifying plate 9 can avoid the swinging water flow to cause the water body in the water damming area to be pushed up left and right, the water splash splashed by the top flushing water body can splash to the bottom surface of the folded plate right above, so that part of the water body enters the dry chamber 3 from the vent hole 8, in the embodiment, the rectifying plate 9 is an isosceles right triangle, the waist length of the isosceles right triangle is 250mm, and the rectifying plate 9 is connected with the top of the folded plate 10 and the inner wall of the wet chamber 2.

As shown in fig. 1-3, a vertically arranged shaft 7 is installed on the top of the dry chamber 3, the shaft 7 is communicated with the inside of the dry chamber 3, the top surface of the shaft 7 is flush with the ground, a well cover 14 is installed on the top of the shaft 7, and the inner walls of the shaft 7 and the dry chamber 3 below the shaft 7 are provided with crawling ladders 13 with protection cages for passing and maintenance of maintainers, in this embodiment, the shaft 7 with a diameter of 700mm is adopted. In addition, the bottom of the intermediate wall 4 is provided with an inspection manhole, the inspection manhole adopts a reserved hole with 3000 mm by 1500mm, and the inspection manhole can be used for inspection personnel to enter a wet chamber from a dry chamber for inspection and maintenance.

As shown in fig. 2 to 3, a concrete pad 16 is laid on the bottom of the well 1 for supporting the well 1, and in this embodiment, the concrete pad 16 is a C15 concrete pad.

In conclusion, the rectangular folded plate type energy dissipation hydraulic drop vertical shaft in the embodiment is simple in structure, convenient to construct and safe in structure; compared with a drop well of a national standard drawing set, the drop well has two different functional areas of a dry chamber and a wet chamber, and the wet chamber is provided with a folded plate and an energy dissipation pool, so that the efficiency requirements of short distance and large height difference can be met; the vent holes are arranged right below the middle parts of the folded plates, so that ventilation can be realized, smooth drainage is facilitated, and sewage can be prevented from entering the dry chamber from the wet chamber through the vent holes in the position right below the folded plates; the dry chamber is internally provided with a crawling ladder with a protective cage, so that the safety of maintainers can be guaranteed; the bottom of the dry chamber is provided with a sludge settling tank, so that the sludge settling tank can be prevented from silting down-stream pipelines when the peripheral plots are not developed yet and the sewage amount is less.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description is not repeated herein.

Claims

1. The utility model provides a rectangle folded sheet formula energy dissipation drop shaft which characterized in that: the well chamber is divided into a wet chamber and a dry chamber which are communicated with each other at the bottoms by a partition wall in the well chamber, a water inlet at the top of the wet chamber is connected with a water inlet pipe, a water outlet at the bottom of the dry chamber is connected with a water outlet pipe, a plurality of folded plates are arranged on the inner wall of the wet chamber at intervals along the height direction of the inner wall of the wet chamber, the folded plates are arranged in a staggered mode, and a water guide channel is formed between the inner wall of the wet chamber and the folded plates;

except the folded plates arranged at the water inlet of the wet chamber, the tops of the rest folded plates close to the inner wall of the wet chamber are respectively provided with a rectifying plate; an energy dissipation pool is arranged at the bottom of the wet chamber, and a pebble layer is paved at the bottom of the energy dissipation pool; and a sludge settling groove is formed in the bottom of the drying chamber.

2. The rectangular folded plate type energy dissipation drop shaft of claim 1, wherein: the arrangement direction of the folded plate is the same as the length direction of the intermediate wall.

3. The rectangular folded plate type energy dissipation drop shaft of claim 1, wherein: the middle partition wall is provided with a plurality of vent holes along the height direction, and the arrangement direction of the vent holes is the same as the width direction of the middle partition wall.

4. The rectangular folded plate type energy dissipation drop shaft of claim 1, wherein: and a concrete cushion is laid at the bottom of the well chamber.

5. The rectangular folded plate type energy dissipation drop shaft of claim 1, wherein: the top of the dry chamber is provided with a shaft communicated with the dry chamber, the top of the shaft is provided with a well cover, and the inner walls of the shaft and the lower part of the shaft in the dry chamber are provided with crawling ladders with protective cages.

6. The rectangular folded plate type energy dissipation drop shaft of claim 1, which is characterized in that: and the bottom of the intermediate wall is provided with an inspection manhole.