CN217537254U - Partitioned sewage drainage shaft structure for reducing air suction volume - Google Patents

Abstract

The utility model provides a partition blowdown shaft structure for reducing air suction, which comprises a shaft and a partition plate arranged in the shaft, wherein the partition plate is arranged along the vertical direction of the shaft, and a first overflowing hole and a second overflowing hole are arranged on the partition plate; the partition plates comprise a first partition plate and a second partition plate, the first partition plate and the second partition plate are intersected, the vertical shaft is divided into a first channel, a second channel, a third channel and a fourth channel along the clockwise direction, and the first channel is connected with the water inlet pipe; the first overflowing hole is located in the first channel, and the second overflowing hole is located in the third channel. The utility model discloses a shaft structure can effectively avoid rivers entrainment a large amount of outside air, from the gaseous production of source control to avoid low reaches sewage pipes atmospheric pressure to increase.

Description

Partitioned sewage drainage shaft structure for reducing air suction volume

Technical Field

The utility model relates to a municipal works technical field particularly relates to a subregion blowdown shaft structure for reducing inspiratory capacity.

Background

The vertical shaft is one of the most important drop structures in an urban drainage system and mainly used for intensively guiding sewage in a plurality of drainage pipelines close to the ground surface to an underground drainage main canal buried deep through the vertical shaft. A series of changes can occur in the process that the water flow falls freely from the vertical shaft, the main change is that the initially complete continuous flaky water flow gradually collides, is crushed and is decomposed after falling for a certain height, and most of the water flow is in a water drop shape when the water flow approaches the bottom of the vertical shaft. In this case, the phenomenon of shaft suction is often accompanied, resulting in an excessive pressure gradient in the shaft, and odor generated in the sewage pipes escapes outside the pipes at the pressure, causing serious odor and environmental problems.

It has been shown that the main reason for the air suction of the shaft is that the water flow is broken and decomposed into a large number of water drops in the falling process, and when the sheet-shaped continuous water flow is changed into water drops, although the volume of the water flow is not changed, the surface area of the water flow is much larger than the original surface area, at this time, the contact area between the water flow in the water drop state and the air in the shaft is obviously much larger than the original surface area, and therefore, the more air can be dragged downwards. Secondly, the size of the shaft is also the main reason for influencing the air suction of the shaft, and the larger the diameter of the shaft is, the more the air suction is; the higher the shaft, the more complete the process of breaking up the water flow into droplets and the more suction.

Chinese patent publication No. CN108104242a discloses a straight-flow drop structure for reducing the amount of inhaled gas, which comprises a water inlet pipe, an air inlet, a partition plate, an air pipe, a water pipe and a flow outlet pipe which are arranged in a shaft, wherein the partition plate is arranged in the middle of the shaft, an upper orifice is reserved at a distance from the top of the drop structure, and a lower orifice is reserved at a distance from the bottom of the drop structure, so as to form gas circulation inside the structure.

The Chinese patent document with the publication number of CN112196060A discloses a pollution discharge falling flow vertical shaft structure based on an internal circulation airflow pipe and a use method thereof, wherein the structure comprises a vertical shaft and the internal circulation airflow pipe arranged in the vertical shaft; the inner circulation airflow pipe divides the vertical shaft into an overflow part and an overflow part, the overflow part is connected with the water inlet pipe, the top of the inner circulation airflow pipe is lower than the bottom of the water inlet pipeline, and the bottom of the inner circulation airflow pipe is higher than the top of the water outlet pipe and is used for guiding gas to form inner circulation airflow in the airflow pipe; the inner circulation airflow pipe is vertically suspended in the vertical shaft through the fixing device and is in contact with the inner wall surface of the vertical shaft, and the shaft structure can be arranged according to different water flows to achieve the optimal air reduction effect while the problems of odor dissipation and environmental pollution of a sewage discharge system are solved.

A large amount of air has been sucked in the above two kinds of shaft structures, and it mainly keeps the gas that produces inside the shaft through a part of circulating structure to reduce the effluence of foul smell and give off, but because the quantity of circulating gas of above two kinds of structures is not many, and efficiency is not high, and does not control the production of gas from the source, so the effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a not enough to prior art for reducing the subregion blowdown shaft structure of inspiratory capacity, this shaft structure can effectively avoid rivers entrainment a large amount of outside air, from the gaseous production of source control to avoid low reaches sewage pipes atmospheric pressure increase.

In order to achieve the above object, the utility model adopts the following technical scheme:

a partition sewage draining vertical shaft structure for reducing air suction amount comprises a vertical shaft and a partition plate arranged in the vertical shaft, wherein the partition plate is arranged in the vertical direction of the vertical shaft, and a first overflowing hole and a second overflowing hole are formed in the partition plate and used for passing water;

the partition plate comprises a first partition plate and a second partition plate, the first partition plate and the second partition plate are intersected, the vertical shaft is divided into a first channel, a second channel, a third channel and a fourth channel along the clockwise direction, and the first channel is connected with the water inlet pipe so that water flows into the first channel as much as possible;

the first overflowing hole is located in the first channel, and the second overflowing hole is located in the third channel.

Preferably, the first partition and the second partition intersect perpendicularly.

Preferably, the intersection line of the first partition and the second partition coincides with the central axis of the shaft.

Preferably, the central axis of the inlet pipe bisects a transverse cross-section of the first passageway.

Preferably, the top of the partition plate and the upper wall edge of the water inlet pipe are located on the same horizontal line, and the bottom of the partition plate is located above the upper wall surface of the water outlet pipe.

Preferably, the upper edge of the first overflowing hole and the lower edge of the water inlet pipe are located on the same horizontal line, and the upper edge of the second overflowing hole and the lower edge of the first overflowing hole are located on the same horizontal line.

Preferably, the first overflowing hole and the second overflowing hole are rectangular holes.

Preferably, the first overflowing hole and the second overflowing hole are equal in size, and the width of the overflowing hole ranges from [1/2r, r ], wherein r is the width from the intersection line of the first partition plate and the second partition plate to one side of the partition plate through the overflowing hole.

Preferably, both sides of the partition plate are hermetically connected with the inner wall of the vertical shaft to prevent water leakage.

The working principle is as follows: the vertical shaft can suck the outside air, namely, the falling water flow in the vertical shaft is randomly collided, decomposed and broken into a large number of water drops, and the contact area of the water drops and the air is remarkably increased, so that more air can be dragged downwards during falling. And the utility model discloses a rationally divide the shaft into four regions, make the rivers that fall into in the shaft shift along a certain specific area, effectively restrict the form of rivers, the boundary condition that restriction rivers flow prevents that its breakage from decomposing into the water droplet to reduce when rivers fall with the area of contact of air, effectively reduce the air intake.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a subregion blowdown shaft structure for reducing the inspiratory capacity, sewage advances to go into in the first passageway after flowing out from the inlet tube, when the water yield in the first passageway is too much, the first discharge orifice of rivers accessible flows in second passageway and fourth passageway, when second passageway and fourth passageway water yield are too much, rivers flow in the third passageway through the second discharge orifice, flow in the discharge tube at last, so, through reasonable subregion, sewage falls through regional buffering at different levels, thereby the form of rivers has been retrained, the flow boundary of restriction rivers, rivers have been prevented to take place strong low free collision falling the in-process, breakage and decomposition, thereby avoid rivers to coil and inhale a large amount of outside air and cause the increase of low reaches sewage pipes atmospheric pressure, place the offensive smell gas and escape.

2. The utility model discloses a shaft structure is from the gaseous production of source control, can more effectually avoid rivers from the beginning to coil a large amount of outside air to more effectual reduction shaft is breathed in.

Drawings

Fig. 1 is a schematic structural view of the partitioned sewage shaft structure for reducing the air suction amount of the present invention.

Fig. 2 is a sectional plan view of the sectional blowdown shaft structure for reducing air induction volume of the present invention.

Description of the reference numerals: 10. a shaft; 11. a first channel; 12. a second channel; 13. a third channel; 14. a fourth channel; 20. a partition plate; 201. a first overflow aperture; 202. a second overflowing hole; 21. a first separator; 22. a second separator; 30. a water inlet pipe; 40. and (4) a flow outlet pipe.

Detailed Description

In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways.

Combine figure 1, the utility model provides a subregion blowdown shaft structure for reducing inspiratory capacity divide into four regions through crossing baffle with the shaft inner chamber, and in sewage advanced got into first passageway after flowing out from the inlet tube, when the water yield in the first passageway was too much, the first discharge orifice of rivers accessible flowed into second passageway and fourth passageway, and when second passageway and fourth passageway water yield were too much, rivers flowed into the fourth passageway through the second discharge orifice, flowed into the outflow pipe at last.

In a specific embodiment, a partition sewage shaft structure for reducing air suction amount is provided, and comprises a shaft 10 and a partition plate 20 arranged in the shaft, wherein the partition plate 20 is arranged along the vertical direction of the shaft, and a first overflowing hole 201 and a second overflowing hole 202 are arranged on the partition plate 20 and are used for passing water.

The partition comprises a first partition 21 and a second partition 22, the first partition 21 and the second partition 22 intersect and divide the shaft in a clockwise direction into a first passage 11, a second passage 12, a third passage 13 and a fourth passage 14, the first passage 11 is connected with a water inlet pipe 30 so that the water flows into the first passage as much as possible.

The first overflowing hole 201 is located in the first passage 11, and the second overflowing hole 202 is located in the third passage 13.

In the preferred embodiment, the first partition 21 and the second partition 22 intersect perpendicularly.

In another preferred embodiment the line of intersection of said first partition 21 and second partition 22 coincides with the central axis of the shaft.

In a more preferred embodiment, the intersection line of the first partition 21 and the second partition 22 coincides with the central axis of the shaft, and the first partition 21 and the second partition 22 intersect perpendicularly.

In a preferred embodiment, the central axis of the inlet pipe 30 bisects the transverse cross-section of the first passageway, so that the central axis of the inlet pipe is at an equal angle to the adjacent partitions, for example, when the first partition 21 and the second partition 22 intersect perpendicularly, the central axis of the inlet pipe is at an angle of 45 ° to the adjacent partitions, thereby facilitating the water flow into the first passageway.

In the preferred embodiment, the top of the partition 20 is located on the same horizontal line as the upper wall edge of the inlet pipe, and the bottom of the partition is located above the upper wall surface of the outlet pipe, so as to facilitate the flow of water out of the outlet pipe when the falling water is too large.

In a preferred embodiment, the upper edge of the first overflowing hole 201 and the lower edge of the water inlet pipe 30 are located on the same horizontal line, and the upper edge of the second overflowing hole 202 and the lower edge of the first overflowing hole 201 are located on the same horizontal line, so that the water flow can be guided more conveniently.

In other preferred embodiments, the first overflowing hole 201 and the second overflowing hole 202 are rectangular holes, and it should be understood that the first overflowing hole 201 and the second overflowing hole 202 may have other shapes, such as a circle, a hexagon, and an irregular shape, as long as the function of water passing is satisfied.

In other preferred embodiments, the first overflowing hole 201 and the second overflowing hole 202 are equal in size, and the width of the overflowing hole ranges from [1/2r, r ], wherein r is the width from the intersection line of the first partition plate and the second partition plate to one side of the partition plate through the overflowing hole (as shown in fig. 2); if the intersection line of the first partition 21 and the second partition 22 coincides with the central axis of the shaft, r is equal to the shaft radius. In particular, the width of the overflow aperture should approach r indefinitely, where the capacity for water overflow is optimal. It should be understood that the sizes of the first and second flow apertures 201 and 202 may not be equal, as long as the flow apertures are within the above-mentioned range.

In other preferred embodiments, both sides of the partition are hermetically connected with the inner wall of the shaft, so that the water flow can fall from the subareas as smoothly as possible without causing water leakage.

In another preferred embodiment, the operation of the shaft structure is provided as follows:

the sewage firstly flows into the first channel 11 after flowing out from the water inlet pipe 30, when the water amount in the first channel 11 is excessive, the water flow can flow into the second channel 12 and the fourth channel 14 through the first overflowing hole flow 201, when the water amount in the second channel 12 and the fourth channel 14 is excessive, the water flow flows into the third channel 13 through the second overflowing hole flow 202 and finally flows into the outflow pipe 40, therefore, through reasonable subareas, the sewage falls through the buffer of each stage of area, the form of the water flow is restrained, the flowing boundary of the water flow is limited, the water flow is prevented from being subjected to strong low free collision, breakage and decomposition in the falling process, the air pressure of a downstream sewage discharge pipeline is prevented from increasing due to the fact that a large amount of outside air is sucked by the water flow, and the unpleasant odor gas is prevented from escaping.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims (9)

1. A partition sewage drainage vertical shaft structure for reducing air suction volume is characterized by comprising a vertical shaft and a partition plate arranged in the vertical shaft, wherein the partition plate is arranged in the vertical direction of the vertical shaft, and a first overflowing hole and a second overflowing hole are formed in the partition plate;

the partition plates comprise a first partition plate and a second partition plate, the first partition plate and the second partition plate are intersected, the vertical shaft is divided into a first channel, a second channel, a third channel and a fourth channel along the clockwise direction, and the first channel is connected with the water inlet pipe;

the first overflowing hole is located in the first channel, and the second overflowing hole is located in the third channel.

2. A zoned sewage shaft construction for reducing suction according to claim 1 wherein the first and second baffles intersect vertically.

3. A zoned sewage shaft structure for reducing suction according to claim 1 or 2 wherein the intersection line of the first and second partition coincides with the central axis of the shaft.

4. A zoned sewage shaft construction for reducing suction according to claim 1 wherein the central axis of the inlet pipe bisects the transverse cross section of the first passage.

5. The zoned sewage shaft structure for reducing suction air volume according to claim 1, wherein the top of the partition is located on the same horizontal line as the upper wall edge of the inlet pipe, and the bottom of the partition is located above the upper wall surface of the outlet pipe.

6. The zoned sewage shaft structure for reducing suction air amount of claim 1, wherein an upper edge of the first overflowing hole is positioned on the same horizontal line with a lower edge of the water inlet pipe, and an upper edge of the second overflowing hole is positioned on the same horizontal line with a lower edge of the first overflowing hole.

7. The zoned sewage shaft structure for reducing suction air volume according to claim 1 or 6, wherein the first overflowing hole and the second overflowing hole are rectangular holes.

8. The zoned sewage shaft structure for reducing an intake air amount of claim 7, wherein the first overflowing hole and the second overflowing hole are equal in size, and have a width in a range of [1/2r, r ], wherein r is a width from an intersection line of the first partition plate and the second partition plate to one side of the partition plate through the overflowing holes.

9. A zoned blowdown shaft structure for reducing suction volume as claimed in claim 1 wherein both sides of the partition are sealingly connected to the shaft inner wall.

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