CN203769799U

CN203769799U - 3+X urban trunk pipe network system

Info

Publication number: CN203769799U
Application number: CN201420082756.0U
Authority: CN
Inventors: 郑能欢; 杨春江
Original assignee: HUAHAN PIPELINE SYSTEM TECHNOLOGY Co Ltd
Current assignee: HUAHAN PIPELINE SYSTEM TECHNOLOGY Co Ltd
Priority date: 2014-02-26
Filing date: 2014-02-26
Publication date: 2014-08-13
Anticipated expiration: 2024-02-26

Abstract

The utility model discloses a 3+X urbantrunk pipe network system which comprises an urban comprehensive pipe gallery, a sewage gravity flow pipeline and a rain water gravity flow pipeline, wherein the urban comprehensive pipe gallery comprises a support pipeline section and a middle pipeline section; a sewage flow-splitting well array comprises a sewage precipitating well, a sewage treatment well and a clear water well A; a sewage gravity flow pipeline comprises a sewage gravity flow pipeline trunk pipe and a sewage flow-splitting treating system connected onto the sewage gravity flow pipeline trunk pipe; the sewage flow-splitting treating system comprises a sewage flow-splitting inspection well, a sewage backflow inspection well and a sewage flow-splitting well array; a rain water gravity flow pipeline comprises a rain water gravity flow pipeline trunk pipe and a rain water flow-splitting treating system connected onto the rain water gravity flow pipeline trunk pipe; the rain water flow-splitting treating system comprises a rain water flow-splitting inspection well and a rain water flow-splitting well array.The 3+X urban trunk pipe network system overcomes the defects of leakage, backward functions, poor flood draining capability and the like in the conventional urban pipe network systems; the construction cost of the urban pipe network system is reduced, the managing efficiency of the urban pipe network systemis improved and the urban pipe network system security is guaranteed.

Description

3+ X city main pipe network system

Technical Field

The utility model relates to a city underground pipe network system, concretely relates to 3+ X city owner pipe network system.

Background

The urban pipe network infrastructure is responsible for the work of transmitting information, energy or conveying media, is a material foundation on which the cities live and develop, is called as a 'life line' of the cities, and has irreplaceable effects on guaranteeing the normal operation of the cities and improving the urban living environment.

At present, the urban pipe network system has the following defects:

firstly, the urban pipe network infrastructure construction year is long, the infrastructure is old, and the pipeline leaks, so that the pollution of soil and underground water resources is caused; the function of a pipe network is backward, and the function of sewage treatment is lacked, so that the urban water environment is deteriorated; the existing urban pipe network design has insufficient flood discharge capacity, urban waterlogging generally occurs in heavy rain seasons, and serious threats are brought to property and personal safety of citizens; in addition, the design and management of urban pipe network infrastructure is seriously lagged behind the scientific and technological development speed of other industries, the operation and monitoring management level of the urban pipe network is lagged behind, the urban pipe network is in a manual patrol state or even a non-management state, underground pipe network accidents such as underground gas pipeline explosion and the like frequently occur, the life and property safety of people is seriously threatened, and the normal operation of the city is influenced.

According to statistics, due to the fact that the construction planning level of the urban comprehensive pipe network infrastructure is laggard, 65% of urban comprehensive pipe network infrastructures in China are old, more than 90% of urban water environment is deteriorated, and more than 95% of urban underground water does not meet drinking water standards. The main reason for ground water pollution is leakage of urban or industrial sewage pipes, and the coverage rate of urban drainage pipe networks is less than 50%. The highest leakage rate of the water supply network in China can reach 40%, and the average water loss rate can reach more than 27%. A significant portion of the cities' gas pipeline networks were built in the seventies and eighties of the last century, and have been in operation for thirty-four decades, with about 2.3 million urban populations unused gas. In addition, with the development of urbanization, nearly 2 hundred million people enter cities, and new facilities are needed to meet the demand of incremental population.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a 3+ X city main pipe network system, overcomes the leakage that current city pipe network system exists, the function falls behind, defect such as flood discharge ability is not enough.

The utility model provides a technical scheme that its technical problem adopted is: a3 + X city main pipe network system is constructed and is characterized by comprising a city comprehensive pipe gallery, a sewage gravity flow pipeline and a rainwater gravity flow pipeline;

the urban comprehensive pipe gallery comprises support pipe sections and middle pipe sections, wherein the pipe bodies are cylindrical, the middle pipe sections are connected between the adjacent support pipe sections, and the distance between the central lines of the adjacent support pipe sections meets the requirement of supporting the pipelines in the pipe gallery;

the middle pipe section comprises a steel-plastic composite winding pipe body A and two end connecting structures A, and the connecting structures A are in adaptive connection with the connecting structure B of the support pipe section;

the support pipe section comprises a pipe body B, the pipe body B comprises a pipe body middle section, connecting structures B arranged at two ends of the pipe body middle section, a pipeline hanging bracket arranged on the inner side wall of the pipe body middle section, a pipeline support arranged at the lower part of the inner side of the pipe body middle section and a pipe gallery channel; the middle section of the pipe body comprises a plastic-steel composite winding pipe body and a bearing component, and the bearing component is positioned in the wall of the plastic-steel composite winding pipe body and is connected with two adjacent rib plates; the pipeline hanger and the pipeline bracket are connected with the bearing component;

the sewage gravity flow pipeline comprises a sewage gravity flow pipeline main trunk pipe and a sewage split-flow treatment system connected to the sewage gravity flow pipeline main trunk pipe; the sewage diversion treatment system comprises a sewage diversion inspection well, a sewage backflow inspection well, a sewage diversion well array and sewage diversion treatment system information nodes;

the sewage diversion well array comprises a sewage precipitation well, a sewage treatment well and a clean water well A which are sequentially connected in series, wherein the sewage precipitation well is connected with the sewage diversion inspection well through a diversion pipe, the clean water well A is connected into a sewage reuse system through a reuse pipe and is connected with the sewage backflow inspection well through a backflow pipe, and the sewage treatment well is connected with a methane collection system through a methane pipe;

the sewage diversion inspection well and the sewage backflow inspection well are simultaneously arranged on the sewage main pipe, the sewage main pipe or the sewage branch pipe and are communicated with a sewage treatment plant;

the sewage diversion treatment system information node is arranged on the diversion pipe;

the rainwater gravity flow pipeline comprises a rainwater gravity flow pipeline main trunk pipe and a rainwater diversion treatment system connected to the rainwater gravity flow pipeline main trunk pipe; the rainwater diversion processing system comprises a rainwater diversion inspection well, a rainwater diversion well array and rainwater diversion processing system information nodes;

the rainwater diversion well array comprises a rainwater precipitation well, a rainwater treatment well, a clean water well B and a rainwater storage well which are sequentially connected in series, wherein the rainwater precipitation well is connected with the rainwater diversion inspection well through a diversion pipe, the rainwater storage well is respectively connected into a rainwater recycling system and an emergency discharge system through recycling pipes, and the rainwater treatment well is connected with a biogas collection system through a biogas pipe;

the split-flow inspection well is arranged on the rainwater trunk pipe, the rainwater trunk pipe or the rainwater branch pipe;

the rainwater flow distribution processing system information node is arranged on the flow distribution pipe.

The utility model discloses an among the 3+ X city main pipe network system, the compound winding pipe body A is moulded to steel of pipeline section is moulded including setting up the compound enhancement layer in its plastic pipe wall in the middle of the city utility tunnel.

The utility model discloses an among the 3+ X city trunk pipe network system, compound winding pipe body A is moulded to steel, and this plastic steel winding pipe is in winding strip both sides overlap joint portion, the recess bottom between the stiffening rib, including the compound enhancement layer of the fine plastic of short glass that covers winding overlap joint structure comprehensively.

In the utility model discloses in 3+ X city main pipe network system, city utility tunnel support pipe section includes auxiliary pipe section, and this auxiliary pipe section includes fire prevention auxiliary pipe section and/or sump auxiliary pipe section and/or throws material auxiliary pipe section and/or ventilation auxiliary pipe section, and the minimum interval of similar auxiliary pipe section central line satisfies auxiliary function requirement of auxiliary pipe section;

the auxiliary pipe section comprises a pipeline branch line sleeve which is pre-embedded corresponding to the position of the pipeline hanger in the pipe gallery;

the fire-proof auxiliary pipe section comprises a fire-proof wall which seals the inner side section of the fire-proof auxiliary pipe section and is provided with a fire-proof door;

the auxiliary pipe section of the water collecting pit comprises a water collecting pit and a submersible sewage pump which is arranged in the water collecting pit and discharges collected water, and the water collecting pit is arranged at the bottom of the auxiliary pipe section of the water collecting pit and comprises a water inlet connected with the bottom of the auxiliary pipe section of the water collecting pit;

the feeding auxiliary pipe section comprises a feeding port and a feeding port cover, wherein the feeding port is arranged at the upper part of the feeding auxiliary pipe section and extends out of the ground;

the ventilation auxiliary pipe section comprises a ventilation opening and a fan, wherein the ventilation opening is arranged at the upper part of the ventilation auxiliary pipe section and extends out of the ground, and the fan is arranged at the ventilation opening.

In the 3+ X city main pipe network system of the utility model, the well wall of the sewage diversion inspection well is a plastic steel winding pipe or a double flat wall steel-plastic composite winding pipe; the walls of the sewage sedimentation well, the sewage treatment well and the clean water well B of the sewage diversion well array are plastic steel winding pipes or double-flat-wall steel-plastic composite winding pipes.

The utility model discloses an among the 3+ X city trunk pipe network system, compound winding pipe is moulded to plastic steel winding pipe or two flat wall steel at winding strip both sides overlap joint portion, the recess bottom between the stiffening rib, including the compound enhancement layer of the fine plastic of short glass that covers winding overlap joint structure comprehensively.

In the 3+ X city main pipe network system of the utility model, the rainwater diversion treatment system comprises a rainwater backflow inspection well which is connected with the clean water well B through a backflow pipe; the rainwater backflow inspection well and the rainwater diversion inspection well are arranged on a rainwater main pipe, a rainwater main pipe or a rainwater branch pipe at the same time, and are connected with a sewage treatment plant through the rainwater main pipe, the rainwater main pipe or the rainwater branch pipe connected with the rainwater backflow inspection well.

In the 3+ X city main pipe network system of the utility model, the wall of the rainwater diversion inspection well is a plastic steel winding pipe or a double flat wall steel-plastic composite winding pipe; the rainwater sedimentation well, the rainwater treatment well, the clean water well B and the rainwater storage well wall of the rainwater diversion well array are plastic steel winding pipes or double-flat-wall steel-plastic composite winding pipes.

In the 3+ X city main pipe network system of the utility model, the system comprises a pipe network system matching system which comprises a rainwater main pump station, an emergency drainage system, a rainwater pressure pipeline, a sewage main pump station, a sewage pressure pipeline and a sewage treatment plant;

the rainwater master pump station is arranged at the tail end of the rainwater gravity flow pipeline, and the rainwater pressure pipeline is connected with the rainwater master pump station and the sewage treatment plant;

the sewage main pump station is arranged at the tail end of the sewage gravity flow pipeline, and the sewage pressure pipeline is connected with the sewage main pump station and the sewage treatment plant;

the emergency drainage system comprises an emergency drainage pipeline which connects the rainwater master pump station with an emergency drainage place.

In the utility model discloses a 3+ X city main pipe network system, including wisdom pipe network supporting system, this wisdom pipe network supporting system includes city wisdom pipe network monitoring station, wisdom pipe network information link, city utility tunnel monitoring station, professional pipeline remote monitoring station, downspout far-end information node, sewage pipe far-end information node, utility tunnel far-end information node, professional pipeline pipe gallery far-end information node, rainwater main pump station information node, sewage treatment plant information node;

the information node comprises a data output module and a data input module;

the far-end information node of the rainwater pipe is arranged in the rainwater gravity flow pipeline trunk, the far-end information node of the sewage pipe is arranged in the sewage gravity flow pipeline trunk, the far-end information node of the comprehensive pipe rack is arranged in the comprehensive pipe rack, the far-end information node of the professional pipeline pipe rack is arranged on a comprehensive pipe rack structure arranged on or near a professional pipeline in the comprehensive pipe rack, the information node of the rainwater master pump station is arranged on related equipment of the rainwater master pump station, the information node of the sewage master pump station is arranged on related equipment of the sewage master pump station, and the information node of the sewage treatment plant is arranged on related equipment of the sewage treatment plant;

the remote information node of the comprehensive pipe rack is connected with the urban comprehensive pipe rack monitoring station, and the remote information node of the professional pipeline pipe rack is connected with the professional pipeline remote monitoring station;

the urban comprehensive pipe gallery monitoring station, the professional pipeline remote monitoring station, the rainwater pipe far-end information node, the sewage pipe far-end information node, the rainwater master pump station information node, the sewage master pump station information node and the sewage treatment plant information node are respectively connected with the urban intelligent pipe network monitoring station through the intelligent pipe network information link.

Implement the utility model discloses a 3+ X city main pipe network system, compared with prior art, its beneficial effect is:

1. the reliable sealing and corrosion resisting structure is adopted on the pipe network pipeline structure, the leakage preventing capability of the pipe network is greatly improved, the urban comprehensive pipe gallery, the sewage gravity flow pipeline and the rainwater gravity flow pipeline are arranged, and the shunting treatment system is respectively arranged on the sewage gravity flow pipeline and the rainwater gravity flow pipeline, so that the centralized management and sewage treatment of the pipelines are facilitated, the management efficiency is improved, the flood discharge and prevention capability of the pipe network is improved, and the defects of leakage, backward function, insufficient flood discharge capability and the like of the existing urban pipe network system are overcome;

2. the steel-plastic composite winding pipe is used for replacing the traditional metal pipe and reinforced concrete pipe, the manufacturing cost of the pipe is greatly reduced, the weight is greatly reduced, the construction cost of the urban pipe network system is greatly reduced, the difficulty in transportation, installation and construction is greatly reduced, and the construction speed and the construction quality of the urban pipe network system are conveniently improved;

3. the method has the advantages that the modern centralized monitoring technology is applied to the urban pipe network system, the management efficiency of the urban pipe network system is greatly improved, the safe operation of the urban pipe network system is guaranteed, and the method has important significance for improving the urban management level and the urban safe operation level.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the 3+ X city main trunk network system of the present invention.

Fig. 2 is a pipe network schematic diagram of an embodiment of the rainwater diversion treatment and storage system of the urban drainage pipe network in the 3+ X urban trunk pipe network system.

Fig. 3 is a schematic plan view of an embodiment of the rainwater distribution treatment and storage system of the municipal drainage pipe network in the 3+ X municipal main pipe network system of the utility model.

Fig. 4 is a sectional view a-a in fig. 3.

Fig. 5 is a sectional view B-B in fig. 3.

Fig. 6 is a cross-sectional view C-C of fig. 3.

FIG. 7 is a half sectional view of the plastic steel winding pipe.

Fig. 8 is an enlarged view of a portion D in fig. 7.

FIG. 9 is a schematic view of a pipe network according to one embodiment of the sewage diversion treatment system for the municipal drainage pipe network in the 3+ X municipal main pipe network system of the present invention.

FIG. 10 is a plan view of an embodiment of the sewage diversion treatment system for the municipal drainage pipe network in the 3+ X municipal main pipe network system of the present invention.

Fig. 11 is a cross-sectional view E-E of fig. 10.

Fig. 12 is a sectional view F-F in fig. 10.

Fig. 13 is a sectional view taken along line G-G in fig. 10.

FIG. 14 is a structural half-sectional view of the plastic-steel wound pipe.

Fig. 15 is an enlarged view of a portion H in fig. 14.

FIG. 16 is a half sectional view of an embodiment of a strap overlapping part structure of a plastic steel winding pipe.

Fig. 17 is an enlarged view of the portion J in fig. 16.

Fig. 18 is the utility model discloses half section of an implementation mode of prefabricated assembled city utility tunnel middle tube section.

Fig. 19 is an enlarged view of the portion K in fig. 18.

FIG. 20 is a half sectional view of one embodiment of the intermediate section.

Fig. 21 is an enlarged view of the portion L in fig. 20.

Fig. 22 is a half-section view of an implementation mode of the prefabricated urban comprehensive pipe gallery connecting pipe section of the utility model.

Fig. 23 is a cross-sectional view taken along line M-M of fig. 22.

Fig. 24 is a sectional view of an implementation manner of the auxiliary fire protection pipe section in the auxiliary pipe section of the prefabricated urban comprehensive pipe gallery.

Fig. 25 is a sectional view of an implementation of the ventilation feeding auxiliary pipe section in the prefabricated urban comprehensive pipe gallery auxiliary pipe section.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in figure 1, the utility model discloses a 3+ X city main pipe network system includes city utility tunnel 6, sewage gravity flow pipeline, rainwater gravity flow pipeline, pipe network system supporting system and the supporting system of wisdom pipe network that set up in city border region 1. Wherein, except that rainwater gravity flow pipeline, dirty gravity flow pipeline adopt solitary slope design not to be listed in city utility tunnel, all the other trunk pipelines plan the design according to city utility tunnel in unison.

In other embodiments, a pipe network system matching system and a smart pipe network matching system are not arranged, and the realization of the basic invention purpose of the utility model is not influenced.

As shown in fig. 1 to 8, the rainwater gravity flow pipeline includes a rainwater gravity flow pipeline main pipe 6, and a rainwater diversion processing system 9 connected to the rainwater gravity flow pipeline main pipe 6.

The rainwater diversion processing system 9 comprises a diversion inspection well 901, a rainwater diversion well array 90 and a rainwater diversion processing system information node 91a, and one or more rainwater diversion well arrays 90 connected in parallel can be arranged according to a proper interception multiple according to needs. Wherein,

the rainwater diversion well array comprises a precipitation well 902, a water treatment well 903, a clean water well 904 and a water storage well 905 which are sequentially connected in series. The sedimentation well 902 is connected with the diversion inspection well 901 through a diversion pipe 91 and a conduit 92 connected to the diversion pipe 91, the water storage well 905 is respectively connected with the rainwater recycling system 97 and the emergency discharge system 13 through a recycling pipe 94, and the water treatment well 903 is connected with the biogas collection system 96 through a biogas pipe 93.

Rainwater reposition of redundant personnel processing system information node 91a sets up on shunt tubes 91, and rainwater reposition of redundant personnel processing system information node 91a includes data input module and data output module, and this information node is connected with city wisdom pipe network monitoring station, feeds back information such as rainwater reposition of redundant personnel processing system flow to city wisdom pipe network monitoring station, is convenient for realize the intelligent management of city pipe network.

The precipitation well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 in the rainwater diversion well array 90 can be arranged vertically or horizontally, the sizes and specifications of the precipitation well, the water treatment well, the clean water well and the water storage well can be the same, different sizes and specifications can be set according to the trapezoid foundation pit 62, the trapezoid foundation pit can strengthen the safety of the foundation pit, and construction cost reduction are facilitated.

The function of the rainwater recycling system 97 is to recycle rainwater, for example, for greening irrigation, nearby discharge into urban water or leakage into the ground, replenishing ground water, and the like. The emergency discharge system 13 is connected with the rainwater trunk pipe 6, when rainstorm occurs and the rainwater flow distribution processing system processes too large rainwater amount, rainwater in the rainwater flow distribution processing system and the water storage well 905 can be discharged in an emergency mode by stages through the rainwater trunk pipe 6 and the urban waterlogging emergency discharge system 13, and the peak clipping and storage adjusting effect is achieved.

Generally, the diversion inspection well 901 is arranged on the rainwater trunk pipe 6 (i.e. the diversion inspection well 901 is connected with the inlet and the outlet of the rainwater trunk pipe 6), and is connected with the rainwater diversion well array through the diversion pipe 91, so as to perform the functions of diversion regulation and rainwater and sewage grading treatment. The port where shunt tubes 91 connect to shunt manhole 901 is provided with a grid 910.

Aiming at key parts such as urban traffic main roads and low-lying areas, a diversion inspection well 901 of the rainwater diversion treatment system can be arranged on a rainwater main pipe or a rainwater branch pipe as required.

The diversion manhole 901 may also be connected to the inlet of one or more source water pipes 61.

A clean water well 904 is connected with a backflow inspection well 906 through a backflow pipe 95, a grid 950 is arranged at the port where the backflow pipe 95 is connected with the backflow inspection well 906, the backflow inspection well 906 and a shunt inspection well 901 are arranged on a rainwater main pipe 6 at the same time, the rainwater main pipe 6 connected with the backflow inspection well is connected with a sewage treatment plant, initial rainwater can be subjected to centralized sewage treatment, and meanwhile the effect of draining rainwater in an emergency mode can be achieved. When the diversion inspection well 901 is arranged on the rainwater trunk pipe or the rainwater branch pipe, the backflow inspection well 906 and the diversion inspection well 901 are simultaneously arranged on the rainwater trunk pipe or the rainwater branch pipe and are connected with the sewage treatment plant through the rainwater trunk pipe or the rainwater branch pipe connected with the backflow inspection well.

The precipitation wells 902, water treatment wells 903, clean water wells 904, and water storage wells 905 of the rainwater diversion well array may be connected in a manner including, but not limited to:

1. the sedimentation well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 are connected through a self-flowing conduit, and the water outlet is raised in a step mode.

2. The settling well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 are connected through water pump guide pipes.

3. The sediment well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 are connected through a pump well.

Structurally, the precipitation well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 of the rainwater diversion well array can adopt an integrated structure or a split structure.

In order to facilitate slag removal and maintenance operation, the sediment well 902, the water treatment well 903, the clean water well 904 and the water storage well 905 are respectively provided with a closed slag removal port 98 and an inspection ladder 99.

In each rainwater diversion well array 90, one, two or more precipitation wells 902, water treatment wells 903, clean water wells 904 and water storage wells 905 may be provided as required, and each of the two or more precipitation wells may be connected in parallel or in series with other wells.

The well wall of the diversion inspection well 901 can be made of a plastic steel winding pipe or a double-flat-wall steel-plastic composite winding pipe, and can also be made of a traditional waterproof corrosion-resistant reinforced concrete structure.

The walls of the settling wells 902, the water treatment wells 903, the clean water wells 904 and the water storage wells 905 of the rainwater diversion well array 90 can be made of plastic steel winding pipes or double-flat-wall plastic steel composite winding pipes, and can also be made of traditional plastic pipes, plastic steel composite pipes and waterproof corrosion-resistant reinforced concrete structures.

The plastic-steel wound pipe has a structure shown in fig. 7 and 8, and includes a plastic pipe wall 206, and a reinforcing rib 204 erected on an outer surface of the plastic pipe wall 206 and spirally wound along a circumferential direction of the pipe, where the reinforcing rib 204 includes a steel strip 202 (a main supporting structure) erected on the outer surface of the plastic pipe wall 206 and a plastic layer (such as polyethylene) coated on a surface of the steel strip 202, and a bonding layer 203 may be further added between the steel strip 202 and the plastic layer to improve a bonding strength between steel-plastic composite surfaces.

In order to improve the rigidity and the pressure resistance of the plastic-steel wound pipe, ensure that the plastic-steel wound pipe keeps a molded shape in a pressed installation state and reduce the radial deformation of a pipeline, a short glass fiber plastic composite reinforced layer 205 is arranged in a plastic pipe wall 206 of the plastic-steel wound pipe, the minimum required strength of the glass fiber plastic composite reinforced material MRS = 18-20 Mpa, the weight percentage of short fibers is 15% -18%, the diameter of the short fibers is 0.10-0.18 mm, and the length of the short fibers is 6-25 mm.

On the basis of the existing structure, the double-flat-wall steel-plastic composite winding pipe is the same as the plastic-steel winding pipe, the reinforced filling layer 201 is added in the groove between the reinforcing ribs 204, and the reinforced filling layer 201 can further enhance the bearing capacity of the pipeline, reduce the radial deformation of the pipeline and ensure the structural strength of the pipeline. In order to improve the rigidity and the compression resistance of the double-flat-wall steel-plastic composite winding pipe, the double-flat-wall steel-plastic composite winding pipe is ensured to keep a formed shape in a pressed state during installation, and the radial deformation of a pipeline is reduced; meanwhile, the chopped glass fiber plastic composite reinforcing layer is arranged in the plastic pipe wall of the inner layer wall of the double-flat-wall steel-plastic composite winding pipe and in the winding and overlapping part of the double-flat-wall steel-plastic composite winding pipe, so that the rigidity of the double-flat-wall steel-plastic composite winding pipe and the sealing effect of the winding and overlapping part of the double-flat-wall steel-plastic composite winding pipe are improved.

To prevent plugging, the total flow area of all outlet tubes of the split manhole 901 must not be lower than the total flow area of all inlet tubes.

Rainwater of a source water pipe 61 is led into a rainwater trunk pipe 6 through a diversion inspection well 901, rainwater of the diversion inspection well 901 is led into a diversion pipe 91 through a grating 910, rainwater of the diversion pipe 91 can be pumped into a settling well 902 through a water pump guide pipe 92 in a diversion pump well 911 in a self-flowing mode, and the diversion pump well 911 is arranged to enhance the emergency diversion drainage capacity of the diversion inspection well 901.

In the settling well 902, the rainwater is generally divided into three layers, the upper layer is a scum layer, the lower layer is a sludge layer, the middle layer is water flow, and suspended matters in the water are either submerged or floated on the water surface. The rain water is then pumped (or gravity fed) into the water treatment well 903 through the pump conduit 920 and is blocked from the sediment and scum outflow. The rainwater to be treated is introduced into the bottom of the water treatment well 903 through the water distribution pipe 930, and uniformly flows upwards through a sludge bed 931 consisting of flocculent or granular sludge through a water distribution head uniformly distributed at the bottom. Anaerobic reactions occur as the sewage contacts the sludge, producing biogas and causing disturbance of the sludge bed. A part of the gas generated in the sludge bed adheres to the sludge particles, and the free bubbles and the bubbles adhering to the sludge particles rise and impact the bottom of the degassing baffle plate of the three-phase reactor 932 to cause the release of the bubbles; the degassed sludge particles settle back to the surface of the sludge blanket. The free gas and the gas released from the sludge particles are collected in a biogas collection system 96 at the top of the water treatment well 903 through a biogas pipe 93. The liquid contains some remaining solids and biological particles that enter the settling chamber, where they are separated from the liquid and fall back over the sludge blanket through the deflector plate. The sludge is left at the bottom of the water treatment well 903 to continue to treat pollutants, and clean water is discharged through the three-phase reactor 932 and pumped (or gravity-fed) into the clean water well 904 through the water pump conduit 921. Clean water is changed into clean water after passing through the filter 951, and the clean water is pumped (or flows automatically) into the backflow pump well 953 by the water pump conduit 952 or flows into the backflow inspection well 906 through the grating 950 on the backflow pipe 95. The filtering device 951 is provided with an overflow port for emergency regulation and storage of flood. A water pump conduit 954 is arranged in the reflux pump well 953 for pumping the treated clean rainwater or flood emergency drainage into the water storage well array 905 to play a role in peak clipping and storage regulation, and the treated clean rainwater or flood emergency drainage can be connected to the rainwater recycling system 97 and the emergency drainage system 13. The sewage treatment process of the water treatment well array 903 is preferably the anaerobic biological sewage treatment process, and other suitable sewage treatment processes can also be adopted. The anaerobic biological sewage treatment has the advantages that:

(1) the processing capacity is large;

(2) can treat high-concentration rain sewage;

(3) the investment and the occupied area are saved, and the volume load of the process is high, the COD with the same quantity is processed, and the volume of the used effective water treatment well array is small, so the occupied area and the water treatment well array capacity are saved;

(4) the treatment effect is good;

(5) a stirring device is not needed, and the upflow water flow mode and the generated methane have good stirring effect;

(6) the operation is stable;

(7) the structure is simple;

(8) can form granular sludge and ensure the high concentration and the high activity of the sludge in the water treatment well array.

As shown in fig. 1, 9 to 17, the sewage gravity flow pipeline includes a main sewage gravity flow pipeline main pipe 3, and a sewage split-flow treatment system 22 connected to the main sewage gravity flow pipeline main pipe 3.

The sewage diversion treatment system comprises a sewage diversion inspection well 302, a sewage backflow inspection well 303, a sewage diversion well array 20 and a sewage diversion treatment system information node 22 a. One or more parallel sewage diversion well arrays 20 can be arranged according to the appropriate interception multiple according to the requirement. Wherein,

the sewage diversion well array comprises a sewage settling well 223, a sewage treatment well 224 and a clean water well 225 which are sequentially connected in series. The sewage settling well 223 is connected with the sewage diversion inspection well 302 through a diversion pipe 221 and a conduit 222 connected to the diversion pipe 221. The clean water well 225 is connected to a sewage reuse system 228 through a reuse pipe 227 and is connected to a sewage return inspection well 303 through a return pipe 226. The sewage treatment well 224 is connected to the biogas collection system 96 via a biogas pipe 229.

The sewage shunting treatment system information node 22a sets up on the shunt tubes 221, and sewage shunting treatment system information node 22a includes data input module and data output module, and this information node is connected with city wisdom pipe network monitoring station, feeds back information such as sewage shunting treatment system flow to city wisdom pipe network monitoring station, is convenient for realize the intelligent management of city pipe network.

The sewage sedimentation wells 223, the sewage treatment wells 224 and the clean water wells 225 in the sewage diversion well array 20 can be arranged vertically or horizontally, the sizes and specifications of the sewage sedimentation wells can be the same, different sizes and specifications can be set according to the trapezoid foundation pits 32, the trapezoid foundation pits can enhance the safety of the foundation pits, the construction is convenient, and the construction cost is reduced.

The sewage recycling system 228 functions to recycle sewage, for example, for artificial wetland after further purification and disinfection, or for urban greening, nearby discharge into urban water, etc. When rainstorm occurs in a part of historical rain and sewage confluence zones and the sewage treatment amount of the sewage diversion treatment system is too large, clear water in the clear water well 225 can be discharged in an emergency mode in stages through the sewage main pipe 3, and the peak clipping and storage adjusting effects are achieved.

In general, the sewage diversion inspection well 302 is disposed on the sewage main pipe 3 (i.e. the sewage diversion inspection well 302 is connected with the inlet and the outlet of the sewage main pipe 3), and is connected with the sewage diversion well array 20 through the diversion pipe 221, so as to perform the functions of diversion regulation and sewage classification treatment. The port where shunt pipe 221 is connected to sewage shunt inspection well 302 is provided with grid 220.

Aiming at the heavy points such as zones with large sewage displacement and unbalanced regional economic development, a sewage diversion inspection well 302 of the sewage diversion treatment system can be arranged on a sewage main pipe or a sewage branch pipe as required.

Sewage diversion manhole 302 may also be connected to the inlet of one or more source water pipes 301.

A clean water well 225 is connected with a sewage backflow inspection well 303 through a backflow pipe 226, a grid 230 is arranged at the port of the backflow pipe 226 connected with the sewage backflow inspection well 303, the sewage backflow inspection well 303 and a sewage diversion inspection well 302 are simultaneously arranged on a sewage main pipe 3, the sewage main pipe 3 connected with the backflow inspection well is connected with a sewage treatment plant, sewage can be concentrated and treated, and meanwhile, the effect of discharging sewage in an emergency mode can be achieved. When the sewage diversion inspection well 302 is arranged on the sewage main pipe or the sewage branch pipe, the sewage backflow inspection well 303 and the sewage diversion inspection well 302 are simultaneously arranged on the sewage main pipe or the sewage branch pipe and are connected with a sewage treatment plant through the sewage main pipe or the sewage branch pipe connected with the sewage backflow inspection well.

The sewage settling wells 223, the sewage treatment wells 224 and the clean water wells 225 of the sewage diversion well array can be connected in the following ways including but not limited to:

1. connected by a self-flowing conduit, a sewage sedimentation well 223, a sewage treatment well 224, a clean water well 225 and a water outlet are raised in steps.

2. The sewage settling well 223, the sewage treatment well 224 and the clean water well 225 are connected through a water pump conduit.

3. The sewage settling well 223, the sewage treatment well 224 and the clean water well 225 are connected through a pump well.

Structurally, the sewage settling well 223, the sewage treatment well 224 and the clean water well 225 of the sewage diversion well array can adopt an integrated structure or a split structure.

In order to facilitate slag removal and maintenance operations, the sewage sedimentation well 223, the sewage treatment well 224 and the sewage cleaning well 225 are respectively provided with a closed slag removal port 28 and a maintenance ladder 29.

In each sewage diversion well array 20, one, two or more sewage settling wells 223, sewage treatment wells 224 and clean water wells 225 may be provided as required, and each of the two or more sewage settling wells may be connected in parallel or in series with other wells.

The wall of the sewage diversion inspection well 302 can be made of a plastic steel winding pipe or a double-flat-wall steel-plastic composite winding pipe, and can also be made of a traditional waterproof corrosion-resistant reinforced concrete structure.

The walls of the sewage settling well 223, the sewage treatment well 224 and the clean water well 225 of the sewage diversion well array 20 can be made of plastic steel winding pipes or double-flat-wall plastic steel composite winding pipes, and can also be made of traditional plastic pipes, plastic steel composite pipes and waterproof corrosion-resistant reinforced concrete structures.

The plastic-steel wound pipe is shown in fig. 14 and 15, and includes a plastic pipe wall 206, and a reinforcing rib 204 erected on an outer surface of the plastic pipe wall 206 and spirally wound along a circumferential direction of the pipe, where the reinforcing rib 204 includes a steel strip 202 (a main supporting structure) erected on the outer surface of the plastic pipe wall 206 and a plastic layer (such as polyethylene) coated on a surface of the steel strip 202, and a bonding layer may be further added between the steel strip 202 and the plastic layer to improve a bonding strength 203 between the steel-plastic composite surfaces.

In order to further improve the anti-leakage performance of the plastic-steel winding pipe, the plastic-steel winding pipe is provided with the following structures: as shown in fig. 16 and 17, at the overlapping parts of the two sides of the plastic steel winding pipe strip, at the bottom of the groove between the reinforcing ribs 204, a fiberglass plastic composite reinforced layer 207 is disposed at the winding overlapping part tightly attached to the plastic pipe wall 206 and fully covering the winding overlapping structure. The chopped glass fiber plastic composite reinforcing layer 207 can effectively improve the pressure-bearing sealing performance of the winding and lapping part of the plastic steel winding pipe, reduce the radial deformation of the pipe wall 206 of the plastic steel winding pipe in a mounting and pressing state, keep the plastic steel winding pipe in a formed shape when bearing large internal water pressure, realize good sealing and prevent sewage leakage from polluting underground water and the environment.

On the basis of the existing structure, the double-flat-wall steel-plastic composite winding pipe is the same as the plastic-steel winding pipe, the reinforced filling layer 201 is added in the groove between the reinforcing ribs 204, and the reinforced filling layer 201 can further enhance the bearing capacity of the pipeline, reduce the radial deformation of the pipeline and ensure the structural strength of the pipeline. In order to improve the rigidity and the compression resistance of the double-flat-wall steel-plastic composite winding pipe, the double-flat-wall steel-plastic composite winding pipe is ensured to keep a formed shape in a pressed state during installation, and the radial deformation of a pipeline is reduced; meanwhile, the chopped glass fiber plastic composite reinforcing layer is arranged in the plastic pipe wall of the inner layer wall of the double-flat-wall steel-plastic composite winding pipe and in the winding and overlapping part of the double-flat-wall steel-plastic composite winding pipe, so that the rigidity of the double-flat-wall steel-plastic composite winding pipe and the sealing effect of the winding and overlapping part of the double-flat-wall steel-plastic composite winding pipe are improved. In order to further improve the anti-leakage performance of the double-flat-wall steel-plastic composite winding pipe, the lapping parts at two sides of the strip material of the double-flat-wall steel-plastic composite winding pipe are provided with a short glass fiber plastic composite reinforcing layer 207 which completely covers the lapping structure at the bottom of the groove between the reinforcing ribs 204 and the lapping parts tightly attached to the plastic pipe wall 206.

To prevent clogging, the total flow area of all outlet pipes of sewage diversion manhole 302 must not be lower than the total flow area of all inlet pipes.

The sewage of source water pipe 301 leads to sewage trunk pipe 3 through sewage reposition of redundant personnel inspection shaft 302, and the sewage of sewage reposition of redundant personnel inspection shaft 302 leads to shunt tubes 221 through grid 220, and the sewage accessible of shunt tubes 221 flows the mode by oneself, also can pump into sewage sedimentation well 223 through water pump conduit 222 among the reposition of redundant personnel pump well 211, sets up the purpose of reposition of redundant personnel pump well 211 and strengthens the emergent reposition of redundant personnel drainage ability of sewage reposition of redundant personnel inspection shaft 302.

In the sewage settling well 223, the sewage is generally divided into three layers, the upper layer is a scum layer, the lower layer is a sludge layer, and the middle layer is a water flow, wherein suspended matters in the water are either submerged or floated on the water surface. The wastewater is then pumped (or gravity fed) into the wastewater treatment well 224 through the pump conduit 920 and is blocked from the flow of sediment and scum. The sewage to be treated is introduced into the bottom of the sewage treatment well 224 through the water distribution pipes 930 and flows uniformly upward through the sludge bed 931 composed of flocculent or granular sludge through the water distribution heads uniformly distributed at the bottom. Anaerobic reactions occur as the sewage contacts the sludge, producing biogas and causing disturbance of the sludge bed. A part of the gas generated in the sludge bed adheres to the sludge particles, and the free bubbles and the bubbles adhering to the sludge particles rise and impact the bottom of the degassing baffle plate of the three-phase reactor 932 to cause the release of the bubbles; the degassed sludge particles settle back to the surface of the sludge blanket. The free gas and the gas released from the sludge particles are collected in the biogas collection system 96 at the top of the sewage treatment well 224 through the biogas pipe 229. The liquid contains some remaining solids and biological particles that enter the settling chamber, where they are separated from the liquid and fall back over the sludge blanket through the deflector plate. Sludge remains at the bottom of the wastewater treatment well 224 to continue treating the contaminants, and clean water is discharged through the three-phase reactor 932 and pumped (or gravity fed) into the clean water well 225 through the water pump conduit 921. The clean water is changed into clean water after passing through the filter 951, is pumped (or automatically flows) into the return pump 953 by the pump conduit 952, and then flows into the sewage return inspection well 302 through the grille 230 on the return pipe 226 or is connected to the sewage recycling system 228 through the recycling pipe 227.

The sewage treatment process of the sewage treatment well 224 is preferably an anaerobic biological sewage treatment process, and other suitable sewage treatment processes can also be adopted. The anaerobic biological sewage treatment has the advantages that:

(1) the processing capacity is large;

(2) can treat high-concentration rain sewage;

(4) the treatment effect is good;

(6) the operation is stable;

(7) the structure is simple;

As shown in fig. 1, 18 to 25, the urban utility tunnel 6 includes support pipe sections 21 with cylindrical pipe bodies and intermediate pipe sections 20, and the adjacent support pipe sections 21 are connected in series through the intermediate pipe sections to form a pipe tunnel.

The distance between the central lines of the adjacent support pipe sections meets the requirement of supporting the pipelines in the pipe gallery, and is usually 4-6 meters, for example, the distance between the central lines of the adjacent support pipe sections can be designed to be 5 meters.

As shown in fig. 18, 19 and 22, the middle pipe section 20 comprises a steel-plastic composite winding pipe body a, and a reinforcing filler layer 201 arranged between reinforcing ribs 204 on the outer wall of the pipe body a, wherein the two ends of the pipe body a comprise an insertion end and a connecting flange 218 which are matched with the support pipe section in a connecting way.

The steel-plastic composite winding pipe can adopt a steel-plastic winding pipe, a double-flat-wall steel-plastic composite winding pipe and the like. For example, when the steel-plastic composite winding pipe is a plastic-steel winding pipe, the pipe body a is formed by spirally winding a steel-plastic composite special-shaped strip. The composite steel-plastic profiled strip comprises a base 206, a reinforcing rib 204 extending perpendicular to the base and along the length of the strip. The stiffener 204 is mainly formed by extruding a steel strip 202 perpendicular to the substrate as a main supporting structure, the steel strip 202 is extruded and coated with a thermoplastic material (e.g., polyethylene, etc.), and a bonding layer 203 may be disposed between the steel strip 202 and the thermoplastic material to improve the bonding strength of the composite surface.

In order to improve the structural strength of the base plate and reduce the radial deformation of the corridor body, a composite reinforcing layer 205 can be arranged in the base plate 206 of the steel-plastic composite special-shaped strip material. The reinforcing material of the composite reinforcing layer can adopt metal reinforcing material, non-metal reinforcing material, fiber reinforcing material and the like; the fiber-based reinforcing material may be metal fibers, organic fibers, inorganic fibers, or the like. For example, a fiberglass and plastic composite reinforced layer is used.

In order to further improve the anti-seepage performance of the pipe body A of the plastic-steel winding pipe, the plastic-steel winding pipe is provided with the following structure: as shown in fig. 20 and 21, at the overlapping parts of the two sides of the plastic steel winding pipe strip, at the bottom of the groove between the reinforcing ribs 204, a fiberglass plastic composite reinforced layer 207 is disposed at the winding overlapping part tightly attached to the plastic pipe wall 206 and fully covering the winding overlapping structure. The chopped glass fiber plastic composite reinforcing layer 207 can effectively improve the pressure-bearing sealing performance of the winding and lapping part of the plastic steel winding pipe, reduce the radial deformation of the pipe wall 206 of the plastic steel winding pipe in a mounting and pressing state, keep the forming shape, realize good sealing and prevent underground water outside the pipe from leaking into the pipe to influence the pipe gallery environment.

The reinforced filling layer 201 is added in the groove between the reinforcing ribs 204, so that the bearing capacity of the corridor body can be further enhanced by the reinforced filling layer 201, the radial deformation of the corridor body is reduced, and the structural strength and the safety of the corridor body are ensured; preferably adopt fire-retardant material as the fire-retardant rating of reinforcing filling layer in order to improve the corridor body, still can increase the prefabricated inner layer of assembling of fiber concrete in body A inside, further improve its fire-retardant rating.

In the piping lane structure, middle pipeline section 20 (promptly the corridor body) does not just bear the weight of the main bearing member of piping lane internal line weight, only bears groundwater and ground load, and corridor body inner wall does not trompil, does not drill, does not set up the bleeder line export, does not connect the weight that pipe bracket bore utility line, does not connect the weight that pipe rack passageway was born to pipe rack passageway support to destroy tubular wall structure, intensity and waterproof performance. The structure can reduce the requirement of the gallery body on the pipe channel foundation, thereby reducing the construction cost and being beneficial to the popularization and the promotion of the prefabricated urban comprehensive pipe gallery. For example, the ring stiffness SN16, the weight per meter of the plastic steel wound pipe gallery body with the inner diameter of 3m is about 770kg, and the specific gravity is 2551kg/m³And (3) calculating that the weight of the standard reinforced concrete pipe joint of 3mX3m is about 9184kg per meter, which is 12 times of that of the steel-plastic composite structure gallery body. The steel-plastic composite structure gallery body has light self weight, the manufacturing cost of a pipe trench foundation can be reduced, and the use of large-scale hoisting equipment is reduced.

As shown in fig. 22 and 23, the support pipe section 21 includes a pipe body B, and the pipe body B includes a pipe body middle section, plastic expansion sections 212 disposed at two ends of the pipe body middle section, plastic joint sections 211 connected to the expansion sections 212, a sheath 216 surrounding the expansion sections 212, pipe hangers 34, 35, 42, 43 disposed on the inner side wall of the pipe body middle section, pipe brackets 36, 39 disposed on the lower portion of the inner side of the pipe body middle section, and a pipe gallery channel 37 (the pipe gallery channel 37 is supported by the support legs 38). The middle section of the pipe body comprises a plastic steel composite winding pipe body 213 and a force bearing component 215, and the force bearing component 215 is positioned in the wall of the plastic steel composite winding pipe body and is connected with two adjacent rib plates 213 a. The interface section 211 includes a coupling flange 217 for mating with a coupling flange 218 of the body a of the intermediate section 20, an insertion interface for insertion mating with the insertion end of the body a, and an end face for connection with the telescoping section 212. The two ends of the telescopic section 212 are respectively welded with the end face of the middle section of the pipe body and the connecting end face of the interface section 211 (the plastic is integrated and connected). The pipe hangers 34, 35, 42, 43, pipe supports 36, 39 and the gallery channel legs 38 are connected to messenger 215. In the pipeline laid in the pipe gallery, the high-voltage power cable 31 can be isolated by a metal sand box 32 for preventing electromagnetic leakage, sand filled in the box is fireproof and waterproof, and a prefabricated assembled inner layer 33 made of flame-retardant materials can be added between the box and the inner wall of the gallery body so as to further improve the fireproof grade of the cable; a lightweight concrete panel isolation channel 41 may be used for thermal line 40 to isolate the power cable. Separate isolation passages may be provided for the high pressure main water supply lines in the same manner.

In this embodiment, the sheath 216 is a ferrule-type steel sleeve. In other embodiments, other common sheath configurations may be used for the sheath 216.

In the present embodiment, the bellows structure is adopted for the bellows section 212. In other embodiments, the telescopic section 212 may adopt other telescopic structures, for example, a telescopic structure with an axial section being folded may be adopted.

To further enhance the protection of the sheath 216 to the bellows section 212, a lightweight resilient filler 216a is disposed in a groove on the outside of the bellows when the sheath 216 is in the bellows configuration.

In order to improve the matching effect of the insertion end of the middle pipe section pipe body A and the insertion interface of the support pipe section interface section and ensure tight matching, the insertion end matching surface of the middle pipe section pipe body A is set to be a conical surface A, and the insertion interface matching surface of the support pipe section interface section is set to be a conical surface B matched with the conical surface A.

To the piping lane that the fire prevention required height (like high tension power line piping lane), for improving the fire behavior of piping lane, set up the fire prevention fire-retardant layer in the inner wall of support tube leg and middle tube leg. For the pipe gallery of the common pipeline, the inner walls of the support pipe section and the middle pipe section are not provided with the fireproof flame-retardant layer.

In other embodiments, the tube body B of the support tube section 21 may not be provided with the telescopic section 212, and the achievement of the object of the present invention is not affected.

In other embodiments, the plastic joint section 211 and the telescopic section 212 may not be provided for the tube body B of the support section 21, and the connection between the tube body B of the support section 21 and the tube body a of the intermediate section 20 may adopt the following structure including, but not limited to:

1. the tube body B of the support tube section 21 is butt-welded with the tube body A of the middle tube section 20.

2. The pipe body B of the support pipe section 21 is butted with the pipe body A of the middle pipe section 20, and a rigid pipe hoop is adopted to connect the butted part of the pipe body B and the pipe body A.

3. The end part of the tube body B of the support tube section 21 is provided with a plug-in port, the end part of the tube body A of the middle tube section 20 is provided with an insertion end matched with the plug-in port, and the tube body B and the tube body A are connected in a matched mode through an elastic sealing piece between the plug-in port and the insertion end.

The utility model discloses a prefabricated assembled city utility tunnel's support pipeline section can set up auxiliary module and become supplementary pipeline section. The auxiliary pipe section can be one or a combination of a fire-proof auxiliary pipe section, a catch pit auxiliary pipe section, a feeding auxiliary pipe section and a ventilation auxiliary pipe section, and the auxiliary pipe section can be a single auxiliary pipe section, a fire-proof water-collecting auxiliary pipe section as shown in fig. 24 or a ventilation feeding auxiliary pipe section as shown in fig. 25.

The secondary pipe sections are usually provided for secondary functions and are kept at a certain distance. The minimum spacing of the middle lines of the auxiliary pipe sections of the same type meets the auxiliary function requirements of the auxiliary pipe sections, and the spacing can be 180-220 meters, for example, 200 meters.

In order to facilitate the branch outlet of the pipeline in the pipe gallery, a pipeline branch outlet pipe which is pre-embedded corresponding to the position of the pipeline hanging bracket in the pipe gallery is arranged on the wall of the auxiliary pipe section.

The single auxiliary pipe section structure is as follows: the fire-proof auxiliary pipe section is provided with a fire-proof wall which seals the inner side section of the fire-proof auxiliary pipe section and is provided with a fire-proof door; the auxiliary pipe section of the water collecting pit comprises a water collecting pit and a submersible sewage pump which is arranged in the water collecting pit and discharges collected water, and the water collecting pit is arranged at the bottom of the auxiliary pipe section of the water collecting pit and comprises a water inlet connected with the bottom of the auxiliary pipe section of the water collecting pit; the feeding auxiliary pipe section comprises a feeding port and a feeding port cover, wherein the feeding port is arranged at the upper part of the feeding auxiliary pipe section and extends out of the ground; the ventilation auxiliary pipe section comprises a ventilation opening which is arranged on the upper part of the ventilation auxiliary pipe section and extends out of the ground, and a fan which is arranged at the ventilation opening.

As shown in fig. 24, the structure of the fireproof water-collecting auxiliary pipe section 19a is: on the basis of the support pipe sections, a firewall 401 and a water collecting pit 403 are arranged, a submersible sewage pump 404 for draining collected water and a pipeline branch line sleeve 405 which is pre-embedded and corresponds to the position of a pipeline hanging bracket in a pipeline corridor are arranged in the water collecting pit 403, the firewall 401 seals the inner side section of the fireproof auxiliary pipe section, and the pipeline corridor between the two fireproof auxiliary pipe sections is divided into a fireproof partition. For the convenience of personnel passing, a fire door 402 is provided on the firewall 401. A sump 403 is provided at the bottom of the fire-proof catchment auxiliary pipe section and includes a water inlet connected to the bottom of the fire-proof catchment auxiliary pipe section.

As shown in fig. 25, the ventilation feeding auxiliary pipe section 19b is configured to include a feeding port 408 provided on the upper portion thereof to extend out of the ground, a ventilation opening 409, a feeding port cover 407 fitted to the feeding port 408, and a fan 411 provided at the ventilation opening, on the basis of the support pipe section.

In order to facilitate the access of maintenance personnel, the ventilation feeding auxiliary pipe section is provided with a man ladder 406 connected to the side wall of the feeding port 408. In other embodiments, the people ladder 406 is not provided, which does not affect the achievement of the object of the present invention.

In order to facilitate installation and protection of the fan, the ventilation opening 409 is provided with an air cavity, the side wall of the air cavity is provided with a shutter 410, the bottom of the air cavity is provided with a fan installation opening communicated with the inside of the ventilation feeding auxiliary pipe section 19b, and the fan is installed on the fan installation opening. In other embodiments, the air vent 409 is not provided with an air cavity, and the fan 411 is directly mounted on the side wall of the air cavity, so that the purpose of the invention can be achieved.

In order to realize the monitoring of the key structure state in the pipe rack and ensure the safety of pipe rack equipment, an information node 23 is arranged on the firewall 401, the information node 23 comprises a data input module and a data output module, and the information node is connected with a pipe rack monitoring station.

Pipe gallery control station can regard as city utility tunnel component and set up on ground, and this pipe gallery control station is connected with city wisdom pipe network control station, realizes the control to prefabricated assembled city utility tunnel state.

As shown in fig. 1, the pipe network system complete system comprises a rainwater master pump station 12, an emergency drainage system 13, a rainwater pressure pipeline 14, a sewage master pump station 17, a sewage pressure pipeline 16 and a sewage treatment plant 15.

The rainwater master pump station 12 is arranged at the tail end of a rainwater gravity flow pipeline, and the rainwater pressure pipeline 14 is connected with the rainwater master pump station 12 and a sewage treatment plant 15 to realize centralized sewage treatment on rainwater.

The sewage main pump station 17 is arranged at the tail end of the sewage gravity flow pipeline, and the sewage pressure pipeline 16 is connected with the sewage main pump station 17 and the sewage treatment plant 15, so that the centralized treatment of sewage is realized.

The emergency drainage system 13 includes an emergency drainage line connecting the rainwater main 12 and the emergency drainage site.

As shown in fig. 1, the smart pipe network supporting system comprises a city smart pipe network monitoring station 5, a smart pipe network information link 10, a city comprehensive pipe gallery monitoring station 8, a professional pipeline remote monitoring station 11, a rainwater pipe remote information node 7, a sewage pipe remote information node 24, a comprehensive pipe gallery remote information node 23, a professional pipeline pipe gallery remote information node 18, a rainwater master pump station information node, a sewage master pump station information node and a sewage treatment plant information node.

The information node comprises a data output module and a data input module.

The far-end information node 7 of the rainwater pipe is arranged in the rainwater gravity flow pipeline main pipe 6. Sewer pipe distal end information node 24 sets up in sewage gravity flow pipeline main pipe 3, utility tunnel distal end information node 23 sets up in utility tunnel 6 (for example, set up on utility tunnel's firewall), professional pipeline pipe gallery distal end information node 18 sets up on installing the professional pipeline in the utility tunnel or on its near utility tunnel structure, rainwater master pump station information node sets up on the relevant equipment of rainwater master pump station 12, sewage master pump station information node sets up on the relevant equipment of sewage master pump station 17, sewage treatment plant information node sets up on sewage treatment plant 15's relevant equipment.

Utility tunnel distal end information node 23 is connected with city utility tunnel monitoring station 8, and professional pipeline pipe gallery distal end information node 18 is connected with professional pipeline remote monitoring station 11.

The urban comprehensive pipe gallery monitoring station 5, the professional pipeline remote monitoring station 11, the rainwater pipe far-end information node 7, the sewage pipe far-end information node 24, the rainwater master pump station information node, the sewage master pump station information node and the sewage treatment plant information node are respectively connected with the urban intelligent pipe network monitoring station 5 through an intelligent pipe network information link 10.

The professional pipeline remote monitoring station 11 is mainly used for remote data acquisition, production scheduling and equipment monitoring control of professional pipelines such as gas pipelines, power pipelines, communication pipelines and water supply pipelines. City utility tunnel monitoring station 8 is used for city utility tunnel's environment and equipment monitoring to strengthen utility tunnel's safety precaution and the ability of resisting sudden strain of a disaster.

The data output module of the information node is connected with various RFID tags, various sensors and high-definition IP cameras embedded in the pipe network and the information output ends of other pipe network instruments and equipment in a wired, wireless or mixed mode, generates the on-site environment and equipment information of the pipe network in an active or passive mode, and is connected with the data input module, the monitoring station and the database thereof through an information link.

The passive data output mode comprises passive data output according to other monitoring parameters and preset requirements, and manual data output by connecting the monitoring station and a database thereof through an information link through on-site wired or wireless intelligent equipment.

The data input module is provided with a manual and automatic two-stage input control mode, the priority level of manual control is higher than that of automatic control, and manual input control can be implemented on field equipment such as a pump station without depending on an automatic controller.

The manual control can adopt the following control modes: one is a manual in-situ mode, where manual control of the device is performed by touching the control screen or control buttons in the field. And the other is a local remote mode, and the on-site wired or wireless intelligent equipment is connected with the monitoring station and the data input module from the information link to carry out on-site monitoring and manual control on the equipment.

The automatic control is realized by the automatic controller according to the monitoring parameters and the preset control requirements, and manual intervention is not needed. Under the automatic control mode, the basic linkage, linkage and protection control of the devices in the pipeline network can be provided.

Because the equipment operational environment in pipe network scene and the utility tunnel is comparatively abominable, it is preferred to use the PLC system as data input module.

The urban intelligent pipe network monitoring station 5 comprises a drainage monitoring and scheduling system of an urban main pipe network layer. And the sensors of pressure measuring points such as a drainage pipe network, a pump station and the like collect real-time water pressure data and send the data to the monitoring station. The monitoring station guides the water pressure data into a geographic information system of a GIS server for integrated spatial analysis, and superposes and displays the obtained water pressure data distribution diagram on a GIS geographic data diagram of a drainage pipe network, and the maximum water pressure of all nodes in the pipe network and the time of occurrence of the maximum water pressure can be solved step by step through a linear rule model of a node relation tree; preprocessing is carried out based on the acquired original data, area scale index clustering is carried out on the real-time water pressure data, and finally merging and segmentation of drainage blocks are carried out by utilizing a geographic communication map to form a final division result. Reasonably partitioning urban flood areas, controlling the scale of the blocks to meet the system operation requirements, establishing a flood discharge statistical model and a drainage network prediction model of a drainage network under different conditions according to a historical database, determining the type of a model set, and identifying the structure and the parameters of the model; and finally, performing online dynamic correction on the model parameters so as to monitor the long-term flood discharge condition of the corresponding drainage area, and performing urban waterlogging early warning and flood discharge planning based on computer graphics and virtual reality technologies. Under the emergency, the water depth of the pipeline can be rapidly calculated by utilizing a drainage pipe network prediction model, the automatic operation of a drainage system is reasonably controlled through a data output module, all water storage facilities and equipment of the system are fully utilized, the situation that flood overflows in a specific area and the residual rain and sewage diversion processing and storage system is idle is avoided, and finally the minimum overflow of the regional flood is achieved.

The city wisdom pipe network control station 5 includes environmental detection system. To ensure the safety of personnel entering the utility tunnel or underground pipe network, for example, the underground pipe network is provided with environment detectors every 100 meters in each fire zone of the utility tunnel as required, and the monitoring parameters include CO (carbon monoxide), CH (methane), O (oxygen), temperature and humidity. The environment detecting instrument can display actual parameters on site, can also inquire through mobile intelligent equipment, and simultaneously sends PLC control system with 4-20 mA analog data as the operation basis of the ventilation equipment of the utility tunnel or underground pipe network, and sends the information to the monitoring station through an information link. When the monitoring parameters of the environment detecting instrument exceed the set values, the environment detecting instrument has independent acousto-optic alarm and can perform networking alarm in a monitoring station in modes of screen display, wireless communication and the like.

The city wisdom pipe network monitoring station 5 includes video monitor system. In order to ensure the management and operation safety of the urban main pipe network and the safety of workers entering a comprehensive pipe gallery or an underground pipe network, a network video monitoring system is adopted for the urban main pipe network in consideration of the fact that the distribution of the areas needing to be monitored of the urban main pipe network is relatively dispersed and the information transmission line is long. The comprehensive network video monitoring can be realized for the urban main pipe network through a remote video monitoring computer centralized management software system based on a network video server, and the safety monitoring and the operation monitoring of the underground pipe network are realized through intelligent video analysis technologies such as human body various behavior and activity pattern recognition. The alarm can be networked by using an IP mode, and the synchronous video recording and the remote transmission can be carried out to the authorized fixed or mobile monitoring terminal. The authorized user can acquire monitoring information and input related data in a wireless mode at any time and any place.

The city wisdom pipe network monitoring station 5 includes network access control system. And a network access control system is adopted to manage the access doors of each inspection well cover of the main pipe network, each fire-proof subarea of the pipe network ground control machine room/cabinet and each comprehensive pipe gallery, so that the opening and closing of the inspection well cover of the pipe network, the remote control of each access door and the distributed management are realized. The network entrance guard system consists of a network entrance guard computer, entrance guard management software, a network switch, a network information link, an entrance guard controller and supporting facilities. And the management personnel of the monitoring station realize various access management functions of the sub-management area through access control management software. By combining with video and other sensors such as environment detectors, well lid positioning sensors, etc., it is possible to prevent constructors, pedestrians, vehicles from inadvertently entering or falling into dangerous underground facilities. The field personnel can also send field disaster information and videos to the pipe network information platform through the mobile intelligent equipment, transmit the information and the videos to the pipe network information platform, record and store the information and issue early warning to the public through remote monitoring and analysis.

The city utility tunnel monitoring station 8 comprises a fan monitoring system. The fan equipment is controlled by the temperature and humidity, the oxygen concentration, the harmful gas concentration and the fire alarm condition of underground facilities. If the environment monitoring system finds that the oxygen content is reduced (19%) or the CO/CH concentration is higher than a set value and gives an alarm, the fan is automatically started to ensure that personnel normally work, and the fan is automatically closed until each monitoring parameter recovers to a normal value. When the temperature of a certain section exceeds 40 ℃, the section is subjected to mechanical ventilation; when one fan is damaged or can not meet the requirement, the other standby fan can be automatically started to operate. After a fire disaster happens and the operation of the ventilator is confirmed, the fire alarm system instructs to automatically start and stop the operation of the ventilator, and the fire alarm system instructs to shield the instructions of the PLC control system so as to ensure that all fire-fighting equipment is under the unified coordination of the fire-fighting control system. For example, all fans are turned on to control the smoke diffusion direction and guide workers to evacuate safely, and when the temperature in the ditch rises continuously, the fire valve is closed to cut off the entrance of outside air so as to control the fire and the like.

The city utility tunnel monitoring station 8 further comprises a fire detection alarm system. The fire alarm of the utility tunnel takes fire zones (about 200m long) as units, namely one fire zone is an alarm zone. And a set of manual fire alarm buttons are arranged at the emergency exit of each fire-protection subarea. When a fire disaster is detected, the alarm bells of the corresponding subareas are started simultaneously, or the alarm bells can be started by pressing a manual button or by wireless mobile intelligent equipment. The combustible medium leakage monitoring device for the pipelines for conveying combustible media such as the gas pipeline and the like is respectively provided with an external detection device and an internal detection device, and whether the problem of gas leakage occurs is constantly checked. A moisture-proof smoke fire detector is selected for the power cable. Equally spaced (about 15 meters) within the utility tunnel, depending on the range of action of the selected probe.

According to the relevant national fire-fighting standard, the fire alarm system and other computer control systems are independently arranged. The fire alarm system consists of a fire alarm control computer, a distributed fire alarm control module and various fire detectors. The fire alarm control computer centrally controls main fire-fighting equipment such as a water pump, a fan, a fire valve, emergency lighting, a sprayer and the like for fire fighting.

The distributed fire alarm control module monitors the working conditions of each detector and the distributed fire alarm control module at any time, once a fire occurs, each fire protection area and the fire center simultaneously receive an alarm signal sent by the fire detector and automatically link the related equipment, and all the fire protection areas can simultaneously take fire extinguishing measures under the unified coordination of the fire center so as to extinguish the fire at an early stage.

After a fire disaster occurs, the fire alarm control system controls the fire fighting equipment to link and immediately cut off all fan power supplies in the comprehensive pipe gallery, so that the fans stop working, the fire valves of the ventilation system are closed, the fire doors in sections are closed, the air circulation of the place where the fire disaster occurs is isolated, and when oxygen is exhausted, the fire is naturally extinguished. At this moment, the linkage system opens smoke exhaust fan earlier and discharges fume, after confirming that smog is arranged completely, opens normal work ventilation fan again, resumes whole utility tunnel's normal work.

All fire alarm signals are displayed in the form of lamplight or images on the fire alarm controller and the monitoring computer of the monitoring station, and alarm sections are displayed. The database records fire information.

Claims

1. A3 + X city main pipe network system is characterized by comprising a city comprehensive pipe gallery, a sewage gravity flow pipeline and a rainwater gravity flow pipeline;

2. The 3+ X urban trunk pipe network system according to claim 1, wherein the steel-plastic composite winding pipe body A of the middle pipe section of the urban comprehensive pipe gallery comprises a composite reinforcing layer arranged in the plastic pipe wall of the urban comprehensive pipe gallery.

3. The 3+ X urban trunk pipe network system according to claim 2, wherein the steel-plastic composite winding pipe body a is a steel-plastic winding pipe which comprises a chopped glass fiber plastic composite reinforcing layer fully covering the winding and overlapping structure at the overlapping parts of both sides of the winding strip and at the bottom of the groove between the reinforcing ribs.

4. The 3+ X urban trunk pipe network system according to claim 3, wherein the urban utility tunnel support pipe sections comprise auxiliary pipe sections, the auxiliary pipe sections comprise fire-proof auxiliary pipe sections and/or sump auxiliary pipe sections and/or feeding auxiliary pipe sections and/or ventilation auxiliary pipe sections, and the minimum distance of the center lines of the similar auxiliary pipe sections meets the auxiliary function requirements of the auxiliary pipe sections;

5. The 3+ X urban trunk line system according to claim 4, wherein the wall of the sewage diversion inspection well is a plastic steel wound pipe or a double-flat-wall plastic steel composite wound pipe; the walls of the sewage sedimentation well, the sewage treatment well and the clean water well B of the sewage diversion well array are plastic steel winding pipes or double-flat-wall steel-plastic composite winding pipes.

6. The 3+ X urban trunk pipe network system according to claim 5, wherein the plastic steel wound pipe or double flat-walled plastic steel composite wound pipe comprises a short glass fiber plastic composite reinforced layer which covers the whole wound and overlapped structure at the overlapped parts of both sides of the wound strip material and at the groove bottom between the reinforcing ribs.

7. The 3+ X urban trunk network system according to claim 6, wherein the rainwater diversion treatment system comprises a rainwater return manhole connected to the clean water well B through a return pipe; the rainwater backflow inspection well and the rainwater diversion inspection well are arranged on a rainwater main pipe, a rainwater main pipe or a rainwater branch pipe at the same time, and are connected with a sewage treatment plant through the rainwater main pipe, the rainwater main pipe or the rainwater branch pipe connected with the rainwater backflow inspection well.

8. The 3+ X urban trunk pipe network system according to claim 7, wherein the wall of the rainwater diversion inspection well is a plastic steel wound pipe or a double-flat-wall plastic steel composite wound pipe; the rainwater sedimentation well, the rainwater treatment well, the clean water well B and the rainwater storage well wall of the rainwater diversion well array are plastic steel winding pipes or double-flat-wall steel-plastic composite winding pipes.

9. The 3+ X urban trunk line system according to any one of claims 1 to 8, comprising a pipe network system complete system, wherein the pipe network system complete system comprises a rainwater master pump station, an emergency drainage system, a rainwater pressure pipeline, a sewage master pump station, a sewage pressure pipeline and a sewage treatment plant;

10. The 3+ X urban trunk network system according to claim 9, comprising a smart pipe network support system comprising a urban smart pipe network monitoring station, a smart pipe network information link, an urban comprehensive pipe gallery monitoring station, a professional pipeline remote monitoring station, a rainwater pipe remote information node, a sewage pipe remote information node, a comprehensive pipe gallery remote information node, a professional pipeline pipe gallery remote information node, a rainwater master pump station information node, a sewage treatment plant information node;

the information node comprises a data output module and a data input module;