Sewage filler with negative Poisson's ratio

Abstract

The utility model belongs to the field of sewage fillers, and relates to a sewage filler with a negative Poisson's ratio, which can be deformed by stretching and extruding to break pellicles blocked in through holes of the sewage filler or discharge suspended matters. According to the technical scheme, the sewage filler with the negative Poisson's ratio comprises a pipe fitting with the section of a negative Poisson's ratio structure, the two ends of the pipe fitting are open, a plurality of through holes are formed in the pipe wall of the pipe fitting, and the side walls of the through holes are of the negative Poisson's ratio structure. The pipe fitting comprises a plurality of pipe walls, the pipe walls are plates, the side edges of the two pipe walls are connected, the included angle between the two pipe walls is an acute angle, the two pipe walls are arranged in the circumferential direction, and one of the two pipe walls is connected with one of the other two adjacent pipe walls to form the pipe fitting. The joint of the pipe wall and the adjacent pipe wall is in semi-rigid connection.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage filler field relates to a negative poisson's ratio sewage filler. BACKGROUND

[0002] Most sewage treatment links include microbial fermentation treatment, especially for urban sewage and aquaculture sewage treatment. In microbial fermentation treatment, to improve the treatment speed, increasing the number of microorganisms in unit space, and increasing the contact area between microorganisms and sewage are effective means. The sewage filler has a porous structure, which facilitates the attachment of a large number of microorganisms, can expand the number of microorganisms, and increase the contact area between microorganisms and sewage, which obviously improves the microbial fermentation treatment speed.

[0003] The sewage filler can also increase the contact area between microorganisms and oxygen, so the effect of aerobic fermentation is more obvious. However, sewage often contains a large amount of suspended solids, bacterial membranes and other substances, and the through holes on the sewage filler are easily blocked, which slows down the exchange of air between the inside and outside of the sewage filler, reduces the oxygen content, and affects the quality and efficiency of aerobic fermentation.

[0004] In the current technology, the sewage filler is prone to be blocked, and high-pressure water flushing and manual stirring of the sewage filler are required, which increases the work intensity, and a large amount of microorganisms are lost during the flushing process. UTILITY MODEL CONTENTS

[0005] To overcome the defects in the above-mentioned related technology, the utility model provides a negative poisson's ratio sewage filler, which can generate deformation by stretching and extruding, break the bacterial membrane blocked in the through hole of the sewage filler, or discharge the suspended solids.

[0006] To achieve the above technical purpose, the utility model provides a negative poisson's ratio sewage filler. The negative poisson's ratio sewage filler comprises: a pipe with a negative poisson's ratio structure in cross section, both ends of the pipe are open, a plurality of through holes are arranged on the pipe wall of the pipe, and the side wall of the through hole is a negative poisson's ratio structure.

[0007] Preferably, the pipe comprises a plurality of pipe walls, the pipe wall is a plate, the side edges of two pipe walls are connected and the included angle of the two pipe walls is an acute angle, the two pipe walls are arranged in a circle, and one of the two pipe walls is connected with one of the other two adjacent pipe walls to form the pipe. The connection between the pipe wall and the adjacent pipe wall is a semi-rigid connection.

[0008] Preferably, the plurality of through holes are arranged in an array on the pipe wall, and the area of the through hole on each pipe wall is greater than or equal to 1 / 2 of the area of the pipe wall.

[0009] Preferably, the cross section of the through hole is a positive star polygon structure, and the side edge of each through hole is parallel to one side edge of the adjacent through hole.

[0010] Preferably, the negative Poisson's ratio sewage filler further comprises an attachment sheet, and the inner side wall of the joint of the two pipe walls is further fixed with an attachment sheet, and the attachment sheet is a flexible film.

[0011] Preferably, the pipe and the attachment sheet are integrally formed.

[0012] Preferably, the pipe has a circumscribed circle diameter of less than or equal to 150 mm, and a length of less than or equal to 100 mm.

[0013] Preferably, the negative Poisson's ratio sewage filler comprises polyolefin and polyamide.

[0014] The utility model discloses the beneficial effect lies in:

[0015] The utility model discloses the pipe of cross section is negative Poisson's ratio structure, and the pipe wall is provided with the through -hole of negative Poisson's ratio shape, one can improve microbial attachment area on one hand, increase fermentation processing efficiency, one can produce deformation through extrusion on the other hand, and the through -hole and the pipe inside tear the fungus film, and make the suspended solids of pipe inside discharge, make aerobic fermentation can continue effectively. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or related technical scheme, the following will be briefly introduced the drawing needed to be used in the embodiment or related technical scheme description, and obviously, the drawing in the following description only is some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0017] Figure 1 It is the three view of the utility model;

[0018] Figure 2 It is the perspective view of the utility model;

[0019] Figure 3 It is a structure diagram of the pipe wall of the utility model;

[0020] Figure 4 It is a structure diagram of the utility model. DETAILED DESCRIPTION

[0021] In order to make the above objects, characteristics and advantages of the present application more obvious, clear and understandable, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] The terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. Embodiment 1

[0024] As shown in Figure 1 and Figure 2 The present embodiment provides a negative Poisson's ratio sewage filler. The negative Poisson's ratio sewage filler comprises a pipe 1 with a negative Poisson's ratio structure in cross section, both ends of the pipe 1 are open, a plurality of through holes 2 are arranged on the pipe wall 11 of the pipe 1, and the side wall of the through hole 2 is a negative Poisson's ratio structure.

[0025] The pipe 1 comprises a plurality of pipe walls 11, the pipe wall 11 is a plate, the side edges of two pipe walls 11 are connected and the included angle of the two pipe walls 11 is an acute angle, the two pipe walls 11 are arranged in a circumferential direction, and one of the two pipe walls 11 is connected with one of the other two pipe walls 11 adjacent to it and forms the pipe 1. The connection between the pipe wall 11 and the adjacent pipe wall 11 is a semi-rigid connection.

[0026] A plurality of through holes 2 are arranged in an array on the pipe wall 11, and the area of the through hole 2 on each pipe wall 11 is greater than or equal to 1 / 2 of the area of the pipe wall 11.

[0027] Multiple through holes 2 increase the air permeability and surface area of ​​the wastewater packing material, facilitating wastewater passage and air exchange. Furthermore, the through holes 2 feature a negative Poisson's ratio shape, allowing the wastewater packing material to be compressed in multiple directions. When several wastewater packing materials are filled into the inclined tube packing material at various angles, they can be compressed in one direction, ensuring that each piece of wastewater packing material can deform.

[0028] The area of ​​the through hole 2 on the pipe wall 11 can be 2 / 3, 3 / 4, or 4 / 5 of the area of ​​the pipe wall 11. The ratio of the through hole 2 to the area of ​​the pipe wall 11 can affect the air permeability of the sewage packing and the magnitude of the compressive force that causes deformation. For example, when the area of ​​the through hole 2 on the pipe wall 11 is 2 / 3 of the area of ​​the pipe wall 11, compared to when the area of ​​the through hole 2 on the pipe wall 11 is 4 / 5 of the area of ​​the pipe wall 11, that is, the distance between two adjacent through holes 2 on the pipe wall 11 is larger, resulting in a greater compressive force that causes deformation.

[0029] The pipe fitting 1 and the attachment plate 3 are integrally formed.

[0030] The diameter of the outer circle of the cross section of the pipe fitting 1 is less than or equal to 150 mm, and the length of the pipe fitting 1 is less than or equal to 100 mm.

[0031] Preferably, the negative Poisson's ratio wastewater filler comprises: polyolefins or polyamides. Example 2

[0032] like Figure 3 As shown, based on Example 1, this embodiment provides a wastewater packing material with a negative Poisson's ratio. The cross-section of the through-hole 2 of the wastewater packing material with a negative Poisson's ratio is a positive star-shaped polygonal structure, and the side of each through-hole 2 is parallel to one side of an adjacent through-hole 2.

[0033] The positive star-shaped polygonal structure is a negative Poisson's ratio structure. When the side of each through hole 2 is parallel to the side of an adjacent through hole 2, multiple positive star-shaped polygonal structures can deform under the extrusion force in one direction, which can reduce the extrusion force and prevent the pipe wall 11 from tearing under the action of external force, thus protecting the sewage packing. Example 3

[0034] like Figure 4 As shown, based on Embodiment 1 or Embodiment 2, this embodiment provides a wastewater packing material with a negative Poisson's ratio. The wastewater packing material with a negative Poisson's ratio further includes an attachment sheet 3, and the attachment sheet 3 is also fixed on the inner sidewall of the connection between the two pipe walls 11. The attachment sheet 3 is a flexible membrane.

[0035] The attachment plate 3 can be made of polyolefin or polyamide and is integrally molded with the pipe fitting 1. The attachment plate 3 can be used to increase the internal surface area, which facilitates the attachment of microorganisms and improves fermentation efficiency.

[0036] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A negative Poisson's ratio sewage filler, characterised in that, The application relates to a pipe with a negative Poisson's ratio structure, which is open at both ends, and a plurality of through holes are arranged on the pipe wall, and the side wall of the through hole is a negative Poisson's ratio structure. The pipe comprises a plurality of pipe walls, the pipe wall is a plate, the side edges of two pipe walls are connected, the included angle of the two pipe walls is an acute angle, the two pipe walls are arranged in a circle, and one of the two pipe walls is connected with one of the other two adjacent pipe walls to form the pipe.

2. The negative Poisson's ratio sewage packing of claim 1, wherein, The connection between the pipe wall and the adjacent pipe wall is a semi-rigid connection. The plurality of through holes are arranged on the pipe wall, and the area of the through hole on each pipe wall is greater than or equal to 1 / 2 of the area of the pipe wall.

3. The negative Poisson's ratio sewage packing of claim 2, wherein, The cross section of the through hole is a positive star polygon structure, and the side edge of each through hole is parallel to the side edge of the adjacent through hole.

4. The negative Poisson's ratio sewage packing of claim 3, wherein, The negative Poisson's ratio sewage filler further comprises an attachment sheet, the inner side wall of the connection between the two pipe walls is further fixed with the attachment sheet, and the attachment sheet is a flexible film.

5. The negative Poisson's ratio sewage packing of claim 4, wherein, The pipe and the attachment sheet are integrally formed.

6. The negative Poisson's ratio sewage packing of claim 5, wherein, The diameter of the circumscribed circle of the cross section of the pipe is less than or equal to 150 mm, and the length of the pipe is less than or equal to 100 mm.

7. A negative Poisson's ratio sewage filler according to claim 6, characterised in that, The negative Poisson's ratio sewage filler comprises polyolefin or polyamide.

8. The negative Poisson's ratio sewage packing of claim 7, wherein, ​

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