CN218204560U

CN218204560U - Dry-type ash storage yard assembled infiltration drainage shaft

Info

Publication number: CN218204560U
Application number: CN202222777060.7U
Authority: CN
Inventors: 袁多亮; 何姜江; 汪彪; 蒲涛
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-03
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a dry-type ash storage yard fabricated percolation drainage shaft, which comprises a shaft seat and a plurality of sections of shafts stacked on the shaft seat; a plurality of second hole bodies which are vertically arranged are uniformly distributed on the circumferential direction of the wall of each shaft, a plurality of first hole bodies are also arranged in the radial direction of the wall of each shaft, and the first hole bodies and the second hole bodies are arranged in an intersecting manner; and a reverse filter is embedded in each second hole body. Through the utility model discloses the structure setting of filtration drainage shaft has solved conventional drainage shaft anti-wind anti-seismic performance not good, prevent that flood discharge ability is limited, be unfavorable for reducing the shortcoming of lime-ash accumulation infiltration line in the ash yard.

Description

Dry-type ash storage yard assembled infiltration drainage shaft

Technical Field

The utility model belongs to the technical field of the pumping shaft, especially, relate to a dry-type ash storage yard assembled infiltration drainage shaft.

Background

It is very common to install drainage shafts in dry-type ash storage yards in valleys. The drainage vertical shaft usually used for dry type ash storage yards in valleys is of a window type cast-in-place reinforced concrete structure, is generally constructed once before the ash storage yard is put into operation, and a plug is adopted to plug a drainage window in operation so as to prevent ash from leaking.

Because the dry-type ash storage yard of the valley is generally high in stacking height, the shaft of the drainage shaft is high when the drainage shaft is constructed in a cast-in-place mode at one time, and wind resistance and earthquake resistance of the drainage shaft are not facilitated; drainage of the window type drainage shaft is window water inflow, flood control and drainage capacity are limited, accumulated water in stacked ash residues after the drainage window is plugged cannot seep and drain outwards through the drainage shaft, the stacked ash residues in an ash yard are mostly saturated bodies, and a wetting line is not easy to reduce and is not beneficial to the overall safety and stability of the ash yard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to overcome prior art problem, disclose a dry-type ash storage yard assembled infiltration drainage shaft, through the utility model discloses infiltration drainage shaft's structure setting has solved among the technical background that conventional drainage shaft wind-resistant anti-seismic performance is not good, prevent that flood discharge ability is limited, be unfavorable for reducing the shortcoming of lime-ash accumulation body infiltration line in the ash yard.

The purpose of the utility model is realized through the following technical scheme:

a dry-type ash yard assembled percolation drainage shaft comprises a shaft seat and a plurality of sections of shafts overlapped above the shaft seat; a plurality of vertically arranged second hole bodies are uniformly distributed on the circumferential direction of the wall of each shaft, a plurality of first hole bodies are also arranged in the radial direction of the wall of each shaft, and the first hole bodies are intersected with the second hole bodies; and a reverse filter is embedded in each second hole body.

According to a preferred embodiment, each well casing is provided with a mounting wedge at an upper end and a mounting tenon at a lower end.

According to a preferred embodiment, each well bore has a height dimension of 1500mm to 3000mm.

According to a preferred embodiment, the reverse filter is made of geotextile-wrapped crushed stone.

According to a preferred embodiment, the geotextile specification of the reverse filter body is 350g/m ² ～500g/m ² The particle diameter d of the broken stone is = 30-100 mm, and the plane area of the reverse filter body is 0.4m ² ～0.6m ² 。

According to a preferred embodiment, each first bore is distributed over the wall of the wellbore in a layered configuration.

According to a preferred embodiment, the first hole body aperture D =50 mm-100 mm, the circumferential spacing is 400 mm-1000 mm, and the shaft spacing is 400 mm-1000 mm.

According to a preferred embodiment, the bottom end of the well seat is provided with a horizontal drainage pipe for completing drainage of water in the well.

According to a preferred embodiment, the wellbore is a prefabricated structure.

According to a preferred embodiment, the top end of the percolation drainage shaft is arranged 1m above the ash surface of the ash field.

Aforementioned the utility model discloses main scheme and each further alternative can the independent assortment in order to form a plurality of schemes, are the utility model discloses can adopt and claim the scheme of protection. After understanding the technical solutions of the present invention, those skilled in the art can understand that there are various combinations according to the prior art and the common general knowledge, which are the technical solutions to be protected by the present invention, and the solutions are not exhaustive here.

The utility model has the advantages that:

the utility model discloses infiltration drainage shaft can be along with the ascending progressively increase of valley ash storage field operation heap ash face, avoids drainage shaft pit shaft towering in the ash field, is favorable to the operation in ash field and the anti-wind antidetonation of drainage shaft. And because the height of the assembled drainage shaft is increased gradually along with the rising of the ash surface, the drainage shaft can drain water through drainage holes around the shaft and overflow of the shaft top during flood control, and the flood control and drainage capacity is high.

Set up the anti-filter body on drainage shaft pit shaft, can guarantee to stack ash sediment internal ponding in the ash yard and collect through anti-filtering discharge, can effectively reduce the interior saturation line of ash yard and avoid the ash sediment to run off, improve the whole security of ash yard under the prerequisite of guaranteeing the feature of environmental protection. The prefabricated assembled shaft is adopted in the vertical shaft structure for reverse filtration and drainage of the assembled shaft, so that the vertical shaft structure is convenient to manufacture, convenient to install and simple in operation requirement.

Drawings

Fig. 1 is a schematic structural view of the percolation drainage shaft of the utility model;

figure 2 is a schematic top view of a well bore in a percolation drainage shaft of the present invention;

fig. 3 is a schematic cross-sectional view of a well bore in a percolation drainage shaft of the present invention at a first bore;

the filter comprises a filter body 1, a first hole body 2, a shaft 3, a well seat 4 and a second hole body 5.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Additionally, the utility model discloses it is pointed out that, in the utility model, if do not write out structure, connection relation, positional relationship, power source relation etc. that concretely relates to very much, then the utility model relates to a structure, connection relation, positional relationship, power source relation etc. are technical personnel in the field on prior art's basis, can not learn through creative work.

Example 1:

referring to fig. 1, there is shown a dry pit assembled percolation drain shaft comprising a well base 4 and lengths of well bore 3 stacked above the well base 4. The well seat 4 is of a cast-in-place reinforced concrete structure. The shaft 3 is a prefabricated structure.

A plurality of second hole bodies 5 which are vertically arranged are uniformly distributed on the circumferential direction of the wall of each shaft 3, a plurality of first hole bodies 2 are further arranged on the radial direction of the wall of each shaft 3, and the first hole bodies 2 are intersected with the second hole bodies 5; and the inverted filter 1 is embedded in each second hole body 5.

Preferably, each well barrel 3 is provided with an installation wedge at the upper end and an installation tenon at the lower end. Thereby facilitating the stacked installation of the shafts 3.

Preferably, each well bore 3 has a height dimension of 1500mm to 3000mm.

Preferably, the reverse filter 1 is made of geotextile-wrapped crushed stone. By arranging the inverted filter 1 in the second porous body 5, the inverted filter 1 is arranged in the middle of the first porous body 2. Can guarantee to stack ash deposit internal water of ash residue in the ash yard and when going on through first hole body 2 anti-drainage, effectively reduce the interior saturation line of ash yard and avoid the ash residue to run off, improve the whole security of ash yard under the prerequisite of guaranteeing the feature of environmental protection.

Further, the specification of the geotextile of the reverse filter body 1 adopts 350g/m ² ～500g/m ² The particle diameter d = 30-100 mm of the broken stone and the plane area of the reverse filter 1 is 0.4m ² ～0.6m ² 。

Preferably, each first hole 2 is distributed on the wall of the well 3 in a layered structure.

Preferably, the aperture D =50 mm-100 mm of each first hole body 2, the circumferential distance is 400 mm-1000 mm, and the vertical shaft distance is 400 mm-1000 mm.

Preferably, the bottom end of the well seat 4 is provided with a horizontal drainage pipe for discharging water in the well.

Preferably, the top end of the percolation drainage shaft is arranged 1m higher than the ash surface of the ash yard.

The utility model discloses the construction and the operation method of infiltration drainage shaft include:

a. before the operation of the ash yard, the construction is completed to cast the reinforced concrete drainage shaft well seat 4 in situ;

b. prefabricating a prefabricated shaft 3 required by operation before the operation of an ash yard, wherein a reverse filtering drainage body 1 is embedded in a second hole body 5 of the shaft 3;

c. and during the operation of the ash yard, a prefabricated shaft 3 is arranged on a drainage shaft well seat 4, the shaft 3 is ensured to be higher than the ash piling surface by 1m, the next shaft 3 is arranged when the length of the shaft is less than 1m, and the top of the shaft is lower than the flood control limit water level of the top elevation of the dam body of the ash yard.

The utility model discloses infiltration drainage shaft can be along with the rising of valley ash storage field operation heap ash face progressively increases, avoids drainage shaft towering in the ash yard, is favorable to the operation in ash yard and the anti-wind antidetonation of drainage shaft.

And because the height of the assembled drainage shaft rises gradually along with the rising of the ash surface, the drainage vertical shaft can drain water through the drainage holes around the shaft and the overflow of the shaft top during flood control, and the flood control and drainage capacity is strong.

Set up the anti-filter body 1 on drainage shaft pit shaft, can guarantee to stack ash sediment internal ponding in the ash yard and collect through anti-filtering discharge, can effectively reduce the interior saturation line of ash yard and avoid the ash sediment to run off, improve the whole security of ash yard under the prerequisite of guaranteeing the feature of environmental protection.

The prefabricated shaft 3 is adopted in the vertical shaft structure for reverse filtration and drainage of the fabricated shaft, so that the vertical shaft structure is convenient to manufacture, convenient to install and simple in operation requirement.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The assembled percolation drainage shaft of the dry ash storage yard is characterized by comprising a shaft seat (4) and a plurality of sections of shaft bodies (3) which are overlapped on the shaft seat (4);

a plurality of vertically arranged second hole bodies (5) are uniformly distributed on the circumferential direction of the cylinder wall of each well bore (3), a plurality of first hole bodies (2) are further arranged on the radial direction of the cylinder wall of each well bore (3), and the first hole bodies (2) are intersected with the second hole bodies (5); and the reverse filtering bodies (1) are embedded in the second hole bodies (5).

2. Percolation drain shaft according to claim 1, characterised in that each shaft (3) is provided with mounting wedges at its upper end and mounting tenons at its lower end.

3. A percolation drain shaft according to claim 2, characterised in that each shaft (3) has a height dimension of 1500mm to 3000mm.

4. Percolation drain shaft according to claim 1, characterised in that the anti-filter body (1) is made of geotextile-wrapped crushed stone.

5. Percolation drainage shaft according to claim 4, characterised in that the geotextile size of the reverse filtering body (1) is 350g/m ² ～500g/m ² The particle diameter d = 30-100 mm and the plane area of the reverse filter is 0.4m ² ～0.6m ² 。

6. Percolation drainage shaft according to claim 1, characterised in that each first hole (2) is a laminar structure distributed over the wall of the shaft (3).

7. A percolation drainage shaft according to claim 6, characterised in that the first cells (2) have a diameter D = 50-100 mm, a circumferential spacing of 400-1000 mm and a shaft spacing of 400-1000 mm.

8. A percolation drain shaft according to claim 6 characterised in that the bottom end of the well base (4) is provided with a horizontal drain for completing the drainage of water inside the well.

9. Percolation drainage shaft according to claim 1, characterised in that the shaft (3) is a prefabricated structure.

10. The percolation drain shaft according to claim 1 wherein the top end of the percolation drain shaft is positioned 1m above the ash level of the ash yard.