CN216689668U

CN216689668U - Multistage chambered energy dissipation well

Info

Publication number: CN216689668U
Application number: CN202220075087.9U
Authority: CN
Inventors: 赵燕侠; 于凤刚; 朱伯麟; 魏承; 马骞; 苏建华
Original assignee: Lanzhou New Area Boshi Environmental Protection Co ltd
Current assignee: Lanzhou New Area Boshi Environmental Protection Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-07
Anticipated expiration: 2032-01-12

Abstract

The utility model belongs to the technical field of water supply and drainage, and relates to a multistage chambered energy dissipation well. Inside being two parts by overflow weir separation of energy dissipation well body, being left energy dissipation well, right energy dissipation well respectively, the pressure pipe of intaking, outlet pipe are being installed respectively to left energy dissipation well lateral wall and right energy dissipation well lateral wall, and the pressure pipe of intaking is higher than outlet pipe and outlet pipe diameter and is 1.2~1.5 times of the pressure pipe diameter of intaking, and left energy dissipation well is inside to be fixed with the baffling board, the baffling board top is corresponding the mouth of pipe of the pressure pipe of intaking in left energy dissipation well, and the baffling board shape is for rolling over fan-shaped, and right energy dissipation well internal bottom surface is the base slope. The advantages are that: the space occupies for a short time, simple structure, the operation is stable, the energy dissipation efficiency is high, and the operation and the maintenance are convenient.

Description

Multistage chambered energy dissipation well

Technical Field

The utility model belongs to the technical field of water supply and drainage, and relates to a facility for reducing potential energy and kinetic energy of water flow.

Background

When the water supply pipeline and the water discharge pipeline are in an open and full flow alternating state, the phenomenon that the pipe wall is seriously scoured by water pressure is caused, structures are damaged, the service life is shortened, and vibration and noise are easily generated when the water flow is unstable, so that noise pollution is caused. Therefore, the energy carried by the water flow needs to be eliminated, and the potential energy and the kinetic energy of the water head need to be reduced.

The mechanical pressure reducing valve adjusts the flow of water flow by controlling the opening degree of an opening and closing piece in the valve body, is commonly used for reducing water pressure, but is not intuitive and inconvenient in pressure setting and adjustment in practical application, and cannot be operated and adjusted remotely under the condition of a higher installation position; and the failure rate is higher, and the conditions of capillary or balance hole blockage, diaphragm deformation, breakage, leakage and the like are easy to occur. The energy dissipation well is used as a special type of pressure reduction energy dissipation mode, has high efficiency and easy maintenance, is suitable for water pipe engineering with high water head and small flow, is a relatively ideal energy dissipation structure, but the existing commonly used energy dissipation well needs a relatively large space for construction, and is not suitable for places with insufficient space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-stage chamber-divided energy dissipation well aiming at the problems in the prior art.

The technical scheme of the utility model is as follows: the utility model provides a multistage locelly energy dissipation well, contains energy dissipation well body, the pressure pipe of intaking, outlet pipe, well lid, and energy dissipation well body is inside to be two parts by overflow weir separation, is left energy dissipation well, right energy dissipation well respectively, and the pressure pipe of intaking, outlet pipe are being installed respectively to left energy dissipation well lateral wall and right energy dissipation well lateral wall, and the pressure pipe of intaking is higher than outlet pipe and outlet pipe diameter (internal diameter) for 1.2~1.5 times of pressure pipe diameter (internal diameter) of intaking, and left energy dissipation well is inside to be fixed with the baffling board, the baffling board top corresponds the mouth of pipe of the pressure pipe of intaking in left energy dissipation well, and the baffling board shape is for folding fan-shaped, and right energy dissipation well inside bottom surface is the base slope, and the base slope has the slope, leans on one side height of overflow weir to be higher than on one side height, and the outlet pipe mouth of pipe is close to the base slope bottom.

And the water inlet pressure pipe, the water outlet pipe and the energy dissipation well body are hermetically installed among the through holes by waterproof sleeves.

The baffle plate is fixed on the support column, and the bottom of the support column is fixed on the bottom surface of the inner part of the left energy dissipation well.

The left energy dissipation well and the right energy dissipation well are respectively provided with a well cover, and a crawling ladder is fixed on the well wall below the well cover.

And a water collecting tank is arranged at the lower part of the bottom slope in the right energy dissipation well, a residual water circulation hole is arranged at the lower part of the overflow weir, and a normally closed gate is arranged at one side of the residual water circulation hole.

The top surface of the overflow weir is an inclined surface, and one side close to the left energy dissipation well is higher than one side close to the right energy dissipation well.

The well lid is an anti-theft ball-milling cast iron well lid with a lock. The slope of the bottom slope is set to be 0.1-0.3%.

The energy dissipation well body and the overflow weir are reinforced concrete walls, and the bottoms of the inner parts of the left energy dissipation well and the right energy dissipation well are non-reinforced concrete pouring plates.

The utility model has the beneficial effects that: the energy dissipation well with the improved structure runs stably, is convenient to overhaul, can safely dissipate water head potential energy and kinetic energy in a pipeline in a smaller space and a shorter distance, enables upstream water flow and downstream water flow to be properly connected under normal conditions, and enables overflow to be smooth. Considering the destructive effects of cavitation, pulsation, vibration, abrasion, scouring and the like caused by water flow, the safety and durability requirements of water delivery pipelines, energy dissipation structures and urban pipe networks are ensured, and urban water supply is carried out normally and orderly.

Drawings

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

FIG. 2 is a plan view of the present invention;

in the figure: the energy dissipation device comprises a left energy dissipation well 1, a right energy dissipation well 2, a waterproof sleeve 3, a water inlet pressure pipe 4, a water outlet pipe 5, a baffle plate 6, a support column 7, an overflow weir 8, a normally closed gate 9, a bottom slope 10, a water collecting tank 11, a well cover 12, a ladder 13 and an energy dissipation well body 14.

Detailed Description

The energy dissipation well shown in figure 1 structurally comprises a left energy dissipation well 1, a right energy dissipation well 2, a waterproof casing 3, a water inlet pressure pipe 4, a water outlet pipe 5, a baffle plate 6, a support column 7, an overflow weir 8, a normally closed gate 9, a bottom slope 10, a water collecting tank 11, a well lid 12, a ladder 13 and an energy dissipation well body 14. High-pressure water flow enters the left energy dissipation well 1 through the water inlet pressure pipe 4, violently collides with the multistage baffle plate 6, is mixed with each other, rolls and rises, and the water flow turbulence is violent; the baffling that 6 productions of stainless steel material baffling board has increased rivers at the inside dwell time of energy dissipation well, greatly reduced flowing water potential energy, then get into 2 secondary energy dissipations of right energy dissipation well through overflow weir 8, discharge through slope 10 steady flow direction outlet pipe 5 at last, the too big well lid jack-up that arouses of well internal pressure when avoiding the inlet tube full flow, take place "jump lid" phenomenon, the outlet pipe diameter design is 1.2~1.5 times for going into water pressure pipe diameter, and well lid 12 selects novel theftproof ball-milling cast iron area lock well lid.

When high-energy water supply or drainage flows into the energy dissipation well, the impact on the well body is effectively reduced through the baffle plate and the overflow weir, and the effect of efficient energy dissipation is achieved; meanwhile, the right energy dissipation well 2 can also ensure that water flow is stable and connected with a downstream pipeline. During the maintenance, stop intaking, open normally closed gate 9, ponding rivers certainly to right energy dissipation well 2 in the left energy dissipation well 1, and the water of right energy dissipation well 2 flows to water catch bowl 11 completely, and the maintainer can go into the well maintenance through inboard fixed mounting's vertical ladder 13, overhauls the back that finishes, closes normally closed gate, resumes to intake, and maintenance work is comparatively simple and convenient.

The energy dissipation well body 14 and the overflow weir 8 are made of reinforced concrete with good leakage resistance and shock resistance, the integrity is good, the shock resistance is strong, water entering the energy dissipation well can be prevented from leaking, the water flow impact resistance of the well body is improved, and the service life is prolonged. Well lid 12 adopts novel theftproof ball-milled cast iron area lock well lid, well lid and the integrative design of well seat, and the tool to lock is installed to the rotation type, and lock and key adopt the high rigidity, prevent embroidering brass preparation, and the noiselessness accords with the environmental protection requirement. The baffle plate 6 adopts a plurality of stages of baffle plates to increase the baffle area, eliminates the scouring of most high-pressure water flow to the well body and reduces the pressure of a water head, and is supported by four support columns 7. The bottom slope 10 sets up the decurrent plain concrete secondary of slope for 2 bottoms of right energy dissipation well, and the slope can be set to 0.1% ~0.3%, and the bottom connects out the outlet pipe, steady rivers. Normally, the normally closed shutter 9 is closed and opened when maintenance is required. The lifting structure of the normally closed gate 9 adopts a common screw rod type structure, a hand wheel is arranged outside the top wall of the energy dissipation well body 14, and a hole through which the screw rod passes is provided with a seal in the prior art. The top surface of the overflow weir is an inclined surface, one side close to the left energy dissipation well is higher than one side close to the right energy dissipation well, so that the structure enables overflow to flow down along the side surface of the overflow weir as much as possible, the water quantity in a parabolic flow state is reduced, water flows down along the side surface of the overflow weir, and the water flow energy is further reduced.

Claims

1. The utility model provides a multistage locellus energy dissipation well, contains energy dissipation well body (14), water inlet pressure pipe (4), outlet pipe (5), well lid (12), characterized by: the inside of the energy dissipation well body (14) is divided into two parts by an overflow weir (8), namely a left energy dissipation well (1) and a right energy dissipation well (2), a water inlet pressure pipe (4) and a water outlet pipe (5) are respectively arranged on the side wall of the left energy dissipation well (1) and the side wall of the right energy dissipation well (2), the water inlet pressure pipe (4) is higher than the water outlet pipe (5), the pipe diameter of the water outlet pipe (5) is 1.2-1.5 times of that of the water inlet pressure pipe (4), a baffle plate (6) is fixed inside the left energy dissipation well (1), the upper part of the baffle plate (6) corresponds to the pipe orifice of the water inlet pressure pipe (4) in the left energy dissipation well (1), the baffle plate (6) is in a folding fan shape, the bottom surface in the right energy dissipation well (2) is a bottom slope (10), the bottom slope (10) has a slope, the height of one side close to the overflow weir (8) is higher than the height of one side close to the water outlet pipe (5), and the pipe orifice of the water outlet pipe (5) is close to the slope bottom of the bottom slope (10).

2. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the water inlet pressure pipe (4), the water outlet pipe (5) and the energy dissipation well body (14) are hermetically installed through the holes by the waterproof sleeves (3).

3. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the baffle plate (6) is fixed on the support column (7), and the bottom of the support column (7) is fixed on the bottom surface inside the left energy dissipation well (1).

4. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the left energy dissipation well (1) and the right energy dissipation well (2) are respectively provided with a well lid (12), and a crawling ladder (13) is fixed on the well wall below the well lid (12).

5. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: a water collecting tank (11) is arranged at the lower part of the inner bottom slope (10) of the right energy dissipation well (2), a residual water circulation hole is arranged at the lower part of the overflow weir (8), and a normally closed gate (9) is arranged at one side of the residual water circulation hole.

6. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the top surface of the overflow weir (8) is an inclined surface, and one side close to the left energy dissipation well (1) is higher than one side close to the right energy dissipation well (2).

7. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the well cover (12) is an anti-theft ball-milling cast iron well cover with a lock.

8. A multi-stage chambered energy dissipating well as claimed in claim 1, wherein: the gradient of the bottom slope (10) is set to be 0.1-0.3%.

9. A multistage chambered energy dissipating well as claimed in claim 1, wherein: the energy dissipation well body (14) and the overflow weir (8) are reinforced concrete walls, and the bottom inside the left energy dissipation well (1) and the right energy dissipation well (2) is a non-reinforced concrete pouring plate.