阅读说明：本技术 雨污合流、雨污混流管道分流管网系统 (Rain and sewage converging and mixing pipeline flow dividing pipe network system ) 是由 赵洪喜 黄荣 于 2019-09-25 设计创作，主要内容包括：一种雨污合流、雨污混流管道分流管网系统。本发明主要应用在市政排水领域,本发明通过在雨污合流管道或雨污混流管道的干路管道内部设置污水流通干路套管,然后将用于接收并输送现状污水的支路管道与所述污水流通干路套管连接,来实现污水的独立输送。本发明基于现有的雨污合流、雨污混流管道,对其进行了结构优化设计,本发明基于现有的雨污合流管道或雨污混流管道在不进行大规模动工改造的前提下,可以实现对现状雨污合流、混流的分流改造,其工程造价较低,不仅节约了改造成本,还能够有效缩短改造工期。改造后,基本消除了污水点源污染,有利于环境保护,满足当下国家政策对生态环境的高压要求。(A rain and sewage converging and mixing pipeline flow dividing and pipe network system. The invention is mainly applied to the field of municipal drainage, and realizes the independent delivery of sewage by arranging a sewage flow main pipeline sleeve inside a rain and sewage converging pipeline or a main pipeline of the rain and sewage mixing pipeline and then connecting a branch pipeline for receiving and delivering the current sewage with the sewage flow main pipeline sleeve. The invention is based on the existing rain and sewage converging and mixing flow pipeline, and carries out structure optimization design, and the invention can realize diversion reconstruction of the existing rain and sewage converging and mixing flow on the premise of not carrying out large-scale dynamic reconstruction based on the existing rain and sewage converging pipeline or rain and sewage mixing flow pipeline, and has lower engineering cost, thereby not only saving reconstruction cost, but also effectively shortening reconstruction construction period. After transformation, the point source pollution of sewage is basically eliminated, the environmental protection is facilitated, and the high-pressure requirement of the current national policy on the ecological environment is met.)

1. A rain and sewage converging and mixing flow pipe dividing pipe network system comprises a main pipeline (1) for rain and sewage converging or mixing flow, a branch pipeline connected with the main pipeline, a sewage receiving terminal for receiving sewage and a rainwater receiving terminal for receiving rainwater arranged at the tail end of the branch pipeline, and a sewage branch pipeline (2) arranged at the tail end of the branch pipeline and provided with the sewage receiving terminal,

a sewage circulation main pipeline sleeve (3) is arranged in the main pipeline, a gap is formed between the outer side wall of the sewage circulation main pipeline sleeve and the inner side wall of the main pipeline, and a rainwater circulation space for rainwater to independently circulate is formed;

the sewage branch pipeline is in butt joint with the sewage circulation main pipeline sleeve, and current sewage is divided through the sewage circulation main pipeline sleeve so as to realize independent conveying of the sewage in the main pipeline.

2. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 1,

a butt joint component is arranged between the sewage branch pipeline and the sewage circulation main pipeline sleeve;

the butt joint component comprises a butt joint straight pipe (4), an elbow (5) and a butt joint tee joint (6), the butt joint straight pipe is provided with a plurality of straight pipes, one end of the butt joint straight pipe is in butt joint with the sewage branch pipeline through a connecting sleeve (7), the other end of the butt joint straight pipe is provided with the elbow, the other end of the elbow is connected with the butt joint straight pipe through another butt joint tee joint, and the butt joint tee joint is in butt joint with the sewage circulation main pipeline sleeve and is used for achieving butt joint between the sewage branch pipeline and the sewage circulation main pipeline sleeve.

3. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 2,

the butt joint tee joint is fixedly connected with the sewage flow main line sleeve in a hot melting way;

the butt joint tee joint is fixedly connected with the butt joint straight pipe in a hot melting mode.

4. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 2,

the connecting sleeve is a rubber connecting sleeve or a plastic connecting sleeve.

5. The rain and sewage converging and mixing pipe shunt pipe network system according to any one of claims 2 to 4,

the sewage flow main line sleeve is an HDPE corrugated pipe.

6. The rain and sewage converging and mixing pipe shunt pipe network system according to any one of claims 2 to 4,

the sewage flow main line sleeve is a U-PVC pipe or a rubber hose.

7. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 1,

the sewage circulation main road sleeve is fixedly arranged at the bottom or on the inner side wall of the main road pipeline through an expansion bolt and an anti-corrosion gasket.

8. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 1,

the main pipeline is a circular pipe, and the sewage circulation main pipeline sleeve is a circular pipe.

9. The rain and sewage converging and mixing pipeline flow dividing and pipe dividing system according to claim 1,

the diameter of the main pipeline is 3-5 times of that of the sewage flow main pipeline sleeve.

Technical Field

The invention relates to the technical field of municipal drainage, in particular to a rainwater and sewage combined flow and rainwater and sewage mixed flow pipeline shunt pipe network system.

Background

Along with the development in city, in the infrastructure in new city, municipal administration rain sewage pipe network all shunts and lays, and the rainwater pipe network and sewage pipe network operate independently, each other do not influence. For old urban areas or built-up areas, most urban drainage pipe networks are combined with rain and sewage or mixed with rain and sewage. For a drainage pipe network with combined rain and sewage flow or mixed rain and sewage flow, the operation modes are as follows: in dry seasons, sewage is discharged from a drainage pipe network and is connected to a downstream sewage treatment plant for purification treatment; in rainy season, sewage treatment is closed to receive rain and sewage combined flow, the drainage of the pipe network is rain and sewage combined flow, and the combined flow is directly discharged to a river channel or a pool.

In rainy season, because the combined water contains a large amount of sewage, the combined water can directly pollute the current water body. With the high requirements of national policies on ecological environment, local governments carry out comprehensive treatment on water environment problems caused by urban rain and sewage confluence and mixed flow.

At present, aiming at the water environment problems caused by rain and sewage confluence and rain and sewage mixed flow of a municipal drainage pipe network, the main solution is as follows: in the first scheme, a confluence overflow system is adopted, or the intelligent transformation of an overflow well (a sewage interception well) is adopted; and in the second scheme, the tail end of the discharge port is provided with a rainwater wetland or an ecological pond, so that the pollution of rainwater and sewage mixed flow to the current water body is reduced, and the quality of the ecological environment is improved and guaranteed.

In the two schemes described above:

for the first scheme, the confluence overflow system is that an overflow well or a sewage interception well is arranged at the tail end of a drainage pipe network, an overflow wall or an overflow device is arranged in the overflow well, the sewage quantity is small in dry seasons, the sewage is intercepted and enters a sewage treatment plant for treatment, the combined rain and sewage flow quantity is large in rainy seasons, the combined rain and sewage flows over the overflow wall, and the overflow water is discharged into nearby waters. The intelligent modification of the overflow well specifically refers to modification of an overflow device of the overflow well, and the modification can be used for adjusting overflow quantity and the like, so that the improvement is performed on an overflow wall part. For the first solution, the main disadvantages are: the distribution of rain and sewage is not completely realized, the combined water mixed with sewage in rainy season still drains into nearby water areas, the water body is polluted, and the control of the overflow flow is difficult.

In the second scheme, a rainwater wetland or an ecological pond is arranged at the tail end of the discharge port, the current rainwater-sewage combined flow and mixed flow pipe network is not reformed, only a tail water wetland or an ecological pond is arranged at the tail end, and the rainwater-sewage combined flow is purified by the tail water wetland or the ecological pond. For the second scheme, the main disadvantages are: the intermittent operation difficulty of the tail water wetland and the ecological pond is high, the treatment effect is greatly influenced by the quality of the incoming water, and the tail end treatment method mainly adopts a tail end treatment measure and has no positive effect on the current rainwater and sewage confluence and the diversion of a mixed flow pipe network.

Disclosure of Invention

In summary, how to improve the structure of a rain and sewage combined flow type drainage pipe network in an old city area or a built-up area so as to realize rain and sewage diversion becomes a problem to be solved by the technical personnel in the field.

In order to solve the problems of the prior art, the invention provides the following technical scheme:

the invention provides a rain and sewage converging and mixed flow pipe dividing and pipe dividing system which comprises a main pipeline for rain and sewage converging or rain and sewage mixed flow, wherein a branch pipeline is connected with the main pipeline, a sewage receiving terminal for receiving sewage and a rainwater receiving terminal for receiving rainwater are arranged at the tail end of the branch pipeline, and the branch pipeline with the sewage receiving terminal at the tail end is a sewage branch pipeline.

Based on the structure, in the invention, a sewage circulation main pipeline sleeve is arranged in the main pipeline, a gap is formed between the outer side wall of the sewage circulation main pipeline sleeve and the inner side wall of the main pipeline, and a rainwater circulation space for rainwater to independently circulate is formed;

the sewage branch pipeline is in butt joint with the sewage circulation main pipeline sleeve, and current sewage is divided through the sewage circulation main pipeline sleeve so as to realize independent conveying of the sewage in the main pipeline.

Preferably, a butt joint component is arranged between the sewage branch pipeline and the sewage circulation main pipeline sleeve; the butt joint component comprises butt joint straight pipes, an elbow and a butt joint tee joint, the butt joint straight pipes are provided with a plurality of straight pipes, one end of one of the butt joint straight pipes is in butt joint with the sewage branch pipeline through a connecting sleeve, the other end of the butt joint straight pipe is provided with the elbow, the other end of the elbow is connected with the butt joint tee joint through the other butt joint straight pipe, and the butt joint tee joint is in butt joint with the sewage circulation main pipeline sleeve and is used for achieving butt joint between the sewage branch pipeline and the sewage circulation main pipeline sleeve and between the sewage circulation main pipeline sleeves.

Preferably, the butt joint tee joint is fixedly connected with the sewage flow main line sleeve in a hot melting way; the butt joint tee joint is fixedly connected with the butt joint straight pipe in a hot melting mode.

Preferably, the connecting sleeve is a rubber connecting sleeve or a plastic connecting sleeve.

Preferably, the sewage flow trunk pipe is an HDPE corrugated pipe.

Preferably, the sewage flow main line sleeve is a U-PVC pipe or a rubber hose.

Preferably, the sewage flow main pipeline sleeve is fixedly arranged at the bottom or on the inner side wall of the main pipeline through an expansion bolt and an anti-corrosion gasket.

Preferably, the main pipeline is a circular pipe, and the sewage flow main pipeline sleeve is a circular pipe.

Preferably, the diameter of the main pipeline is 3-5 times of that of the sewage flow main pipeline sleeve.

The invention has the following beneficial effects:

the invention provides a rain and sewage converging and mixing pipeline flow dividing and transforming method and a rain and sewage converging and mixing pipeline flow dividing and dividing pipe network system. The invention is mainly applied to the field of municipal drainage, and provides a solution with pertinence aiming at the problems of rain and sewage confluence and rain and sewage mixed flow existing in the current municipal drainage pipe network. The sewage flow distribution device realizes the current sewage flow distribution by arranging the sewage flow main pipeline sleeve inside the rain and sewage converging pipeline or the main pipeline of the rain and sewage mixing pipeline and then connecting the branch pipeline for receiving and conveying the sewage with the sewage flow main pipeline sleeve so as to realize the independent conveying of the sewage in the main pipeline. The invention is based on the existing rain and sewage converging and mixing pipelines, carries out the structure optimization design, and compared with the prior art, the invention has the following advantages: based on current rain and sewage converging pipeline or rain and sewage mixed flow pipeline, the diversion transformation of current rain and sewage converging and mixed flow can be realized on the premise of not carrying out large-scale dynamic transformation, the engineering cost is lower, the transformation cost is saved, and the transformation period can be effectively shortened. After transformation, the point source pollution of sewage is basically eliminated, the environmental protection is facilitated, and the high-pressure requirement of the current national policy on the ecological environment is met.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:

fig. 1 is a partial structural schematic view of a rain and sewage converging and mixing pipeline flow distribution pipe network system in a top view according to an embodiment of the present invention;

FIG. 2 is a partial structural schematic view of a rain and sewage converging and mixing pipeline flow dividing pipe network system in a primary view according to an embodiment of the present invention;

description of reference numerals:

a main pipeline 1, a sewage branch pipeline 2, a sewage circulation main pipeline sleeve 3, a butt joint straight pipe 4,

An elbow 5, a butt joint tee 6 and a connecting sleeve 7.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.

In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1 and fig. 2, fig. 1 is a partial structural schematic view of a rain and sewage converging and mixing pipeline shunt tube network system in a top view according to an embodiment of the present invention; fig. 2 is a partial structural schematic view of a rain and sewage converging and mixing pipe flow dividing pipe network system in a primary view according to an embodiment of the present invention.

The invention provides a rain and sewage converging and rain and sewage mixed flow pipeline shunting transformation method, in the rain and sewage converging and rain and sewage mixed flow pipeline shunting transformation method, based on the existing rain and sewage converging pipeline or rain and sewage mixed flow pipeline, a sewage flowing main pipeline sleeve 3 is arranged in a main pipeline 1, and a branch pipeline for receiving and conveying sewage is connected with the sewage flowing main pipeline sleeve 3 to realize current sewage shunting so as to realize independent conveying of sewage in the main pipeline.

At present, drainage pipe networks used in old urban areas or built-up areas of cities are generally of a combined rain and sewage type or a mixed rain and sewage type, a sewage receiving terminal (such as sewer pipes connected to each household in a residential area) and a rainwater receiving terminal (such as rainwater wells arranged on two sides of a road) are connected to the same main pipeline by adopting independent branch pipelines, and the drainage pipe networks are in an independent receiving mode when receiving sewage and rainwater, but are mixed on the main pipeline after being conveyed by the branch pipelines.

The invention provides a rain and sewage diversion reconstruction scheme aiming at the current combined flow and mixed flow pipe networks in cities, and can completely realize the diversion reconstruction of the rain and sewage combined flow and mixed flow pipe networks under certain conditions.

In order to realize the distribution of rain and sewage, in the distribution transformation method of the rain and sewage converging and mixed flow pipeline provided by the invention, the sewage flowing main pipeline sleeve 3 is arranged in the main pipeline 1, then the branch pipeline connected with the sewage receiving terminal is connected to the sewage flowing main pipeline sleeve 3, the original branch pipeline connected with the rainwater receiving terminal is still connected with the main pipeline 1, thus, the sewage can be independently conveyed through the sewage flowing main pipeline sleeve 3 additionally arranged in the main pipeline 1, and the sewage can be independently conveyed in the main pipeline 1, thus the distribution effect of rain and sewage can be achieved.

It should be noted that: in the method for transforming the rain and sewage interflow and rain and sewage mixed flow pipeline in a shunting way, the sewage flowing main pipeline sleeve 3 is arranged in the main pipeline 1 and directly extends to a sewage treatment plant for treatment. The invention can reduce the operation load of sewage treatment plant because the rainwater and the sewage are shunted and the rainwater is treated independently.

Specifically, indulge trunk line pipeline 1 and cut, cross trunk line pipeline 1's center, along vertical direction and horizontal direction, can divide into four right angle sectorial regions with trunk line pipeline 1, sewage circulation trunk line sleeve pipe 3 sets up in trunk line pipeline 1 in the middle of the arbitrary one in two right angle sectorial regions of below, the bottom of trunk line pipeline 1 has been avoided to sewage circulation trunk line sleeve pipe 3's position, like this, sewage circulation trunk line sleeve pipe 3 is at the inside lower half of trunk line pipeline 1, provide the holding power by trunk line pipeline 1's inside wall, cooperation expansion bolts and anticorrosive washer use, can improve the stability that sewage circulation trunk line sleeve pipe 3 set up. Meanwhile, in this way, the sewage circulation trunk line sleeve 3 does not occupy the bottom space in the trunk line pipeline 1, and smooth circulation of rainwater can be ensured.

Based on the rain and sewage converging and mixed flow pipeline diversion transformation method, the invention also provides a rain and sewage converging and mixed flow pipeline diversion pipe network system.

Specifically, the rain and sewage converging and mixed flow pipe dividing and distributing system comprises a main pipeline 1 for rain and sewage converging or rain and sewage mixed flow, a branch pipeline is connected with the main pipeline 1, a sewage receiving terminal for receiving sewage and a rainwater receiving terminal for receiving rainwater are arranged at the tail end of the branch pipeline, and a branch pipeline with a sewage receiving terminal at the tail end is a sewage branch pipeline 2; a sewage circulation main pipeline sleeve 3 is arranged in the main pipeline 1, a gap is formed between the outer side wall of the sewage circulation main pipeline sleeve 3 and the inner side wall of the main pipeline 1, and a rainwater circulation space for rainwater to independently circulate is formed; the sewage branch pipeline 2 is butted with the sewage flow main pipeline sleeve 3.

At present, an existing drainage pipe network can be divided into a main pipeline 1 and a branch pipeline, for the main pipeline 1, the main pipeline has various paths such as a path extending to a sewage treatment plant and a path extending to a river channel or a pond, and for the branch pipeline, a sewage receiving terminal and a rainwater receiving terminal are arranged at the tail end of the branch pipeline. For the convenience of structural description, the branch pipe terminated with the sewage receiving terminal is defined herein as a sewage branch pipe 2.

Inside having set up sewage circulation main road sleeve pipe 3 at main road pipeline 1, designed sewage circulation main road sleeve pipe 3's cross-sectional dimension according to the total blowdown volume of arranging the stain to guarantee that sewage circulation main road sleeve pipe 3 can satisfy the sewage transport requirement of peak blowdown period.

Set up sewage circulation main road sleeve pipe 3 inside main road pipeline 1, with sewage branch road pipeline 2 and the butt joint of sewage circulation main road sleeve pipe 3, no longer be connected with main road pipeline 1, just so can realize the sewage reposition of redundant personnel, the rainwater still can carry and discharge through main road pipeline 1.

Because an additional sewage flow main pipeline sleeve 3 is arranged, the connection between pipelines is also optimally designed: a butt joint component is arranged between the sewage branch pipeline 2 and the sewage flow main pipeline sleeve 3; the butt joint subassembly is including butt joint straight tube 4, elbow 5 and butt joint tee bend 6, butt joint straight tube 4 is provided with a plurality ofly, one of them butt joint straight tube 4's one end passes through adapter sleeve 7 and the butt joint of sewage branch road pipeline 2, butt joint straight tube 4's the other end is provided with elbow 5, another port of elbow 5 is connected with butt joint tee bend 6 through another butt joint straight tube 4, butt joint tee bend 6 and the butt joint of sewage circulation trunk line sleeve pipe 3, be used for realizing the butt joint between sewage branch road pipeline 2 and sewage circulation trunk line sleeve pipe 3 and the sewage circulation trunk line sleeve pipe 3. Further, the butt tee 6 is fixedly connected with the sewage flow main line sleeve 3 in a hot melting way; the butt joint tee joint 6 is fixedly connected with the butt joint straight pipe 4 in a hot melting mode.

Sewage circulation main road sleeve pipe 3 sets up in main road pipeline 1, and sewage branch road pipeline 2 just need pass main road pipeline 1 with the butt joint of sewage circulation main road sleeve pipe 3, consequently, when actual construction, need set up a window according to the diameter of butt joint straight tube 4 on main road pipeline 1 to make butt joint straight tube 4 can pass main road pipeline 1 and the butt joint of sewage circulation main road sleeve pipe 3. In order to ensure the tightness of the drainage pipe network, the invention can arrange a sealing component at the intersection of the trunk pipeline 1 and the butt joint straight pipe 4.

Can know by the aforesaid, sewage branch road pipeline 2 docks with sewage circulation main road sleeve pipe 3 through butt joint subassembly, and in the butt joint subassembly, sewage branch road pipeline 2 is connected with butt joint straight tube 4, specifically, butt joint straight tube 4 is connected with sewage branch road pipeline 2 through adapter sleeve 7, and this kind of connected mode simple structure easily operates to, through setting up the staple bolt in the adapter sleeve 7 outside, can also improve the reliability of intertube connection. In the invention, the connecting sleeve 7 is a rubber connecting sleeve or a plastic connecting sleeve. In the present invention, the connecting sleeve 7 may be replaced by a rigid sleeve or the like.

Specifically, the sewage flow main line casing 3 is a HDPE corrugated pipe. Further, the sewage flow main pipeline sleeve 3 is an HDPE double-wall corrugated pipe. Or the sewage flow main line sleeve 3 is a U-PVC pipe or a rubber hose.

The HDPE double-wall corrugated pipe is a light pipe made of high-density polyethylene, has the characteristics of light weight, high pressure resistance, good toughness, fast construction, long service life and the like, and has an excellent pipe wall structure design, so that the cost is greatly reduced compared with pipes of other structures. And the connection is convenient and reliable, so that the concrete pipe and the cast iron pipe can be replaced.

Specifically, the sewage flow main pipe 3 is fixedly arranged on the inner side wall of the lower half part of the main pipe 1 through an expansion bolt and an anticorrosive gasket.

According to the invention, according to the size of sewage flow, an HDPE double-wall corrugated pipe is newly arranged in a current rainwater and sewage converging or mixed flow pipeline and is connected with a current sewage pipe, and for the condition of multi-hole converging, tee joint hot melting connection can be adopted and is arranged on the side wall of the lower half part of the current pipeline (culvert) and is fixed by using expansion bolts and anti-corrosion gaskets, namely, an independent sewage flow main pipeline sleeve 3 is newly arranged at the expense of a certain area of pipeline space, so that the rainwater and sewage diversion reconstruction is completely realized. Wherein, newly establish the HDPE bellows and must satisfy two points of requirements: firstly, the requirement of sewage overflow flow is met; secondly, the overflow capacity of the rainwater in the original pipeline design is not influenced. In the invention, the main pipeline 1 is a circular pipe, the sewage circulation main pipeline sleeve 3 is a circular pipe, and the diameter of the main pipeline 1 is 3-5 times of that of the sewage circulation main pipeline sleeve 3, so that the sewage discharge requirement can be met without influencing the circulation capacity of rainwater. If the sewage discharge amount of the stain discharge point is large, the diameter of the sewage flow main line sleeve 3 is large, and if the sewage discharge amount of the stain discharge point is small, the diameter of the sewage flow main line sleeve 3 can be appropriately reduced.

The invention provides a rain and sewage converging and mixing pipeline flow dividing and transforming method and a rain and sewage converging and mixing pipeline flow dividing and dividing pipe network system. The invention is mainly applied to the field of municipal drainage, and provides a solution with pertinence aiming at the problems of rain and sewage confluence and rain and sewage mixed flow existing in the current municipal drainage pipe network. The invention realizes sewage diversion and independent sewage conveying by arranging the sewage flow main pipeline sleeve 3 in the rain and sewage converging pipeline or the main pipeline 1 of the rain and sewage mixing pipeline and then connecting the sewage branch pipeline 2 for receiving and conveying sewage with the sewage flow main pipeline sleeve 3. The invention is based on the existing rain and sewage converging and mixing pipelines, carries out the structure optimization design, and compared with the prior art, the invention has the following advantages: based on current rain and sewage converging pipeline or rain and sewage mixed flow pipeline, the diversion transformation of current rain and sewage converging and mixed flow can be realized on the premise of not carrying out large-scale dynamic transformation, the engineering cost is lower, the transformation cost is saved, and the transformation period can be effectively shortened. After transformation, the point source pollution of sewage is basically eliminated, the environmental protection is facilitated, and the high-pressure requirement of the current national policy on the ecological environment is met.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.