CN111501950A - Drainage system for logistics transportation of underground pipe gallery - Google Patents

Drainage system for logistics transportation of underground pipe gallery Download PDF

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Publication number
CN111501950A
CN111501950A CN202010420561.2A CN202010420561A CN111501950A CN 111501950 A CN111501950 A CN 111501950A CN 202010420561 A CN202010420561 A CN 202010420561A CN 111501950 A CN111501950 A CN 111501950A
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drainage
pipe
vacuum
piping lane
drainage system
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吴珅珅
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Jiaozuo university
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Jiaozuo university
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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)

Abstract

The invention relates to a drainage system for logistics transportation of an underground pipe gallery, which comprises a pipe gallery, a water collecting pit arranged at a low-lying position along the longitudinal direction of the pipe gallery and a drainage mechanism arranged in the water collecting pit, wherein the drainage mechanism comprises a drainage well and a drainage pipe communicated with the drainage well, a sewage pump and a vacuum pump are arranged in the drainage well, the sewage pump is connected to a corresponding sewage pipeline outside the pipe gallery through the drainage pipe, the vacuum pump pipeline is connected to a deodorization unit, and the deodorization unit adopts a deodorization biofilter; the drainage system provided by the invention is beneficial to environmental protection and odor control, and realizes the discharge of sewage in the pipe gallery.

Description

Drainage system for logistics transportation of underground pipe gallery
Technical Field
The invention belongs to the technical field of urban infrastructure, and particularly relates to a drainage system for logistics transportation of an underground pipe gallery.
Background
The utility model discloses a public tunnel that utility tunnel is used for laying municipal pipeline such as electric power, communication, radio and television, feedwater, drainage, heating power, gas, commodity circulation in the underground, utility tunnel mainly lays in road central authorities below or the pavement below of road both sides, has that the section is big, and the buried depth is big, system stability, characteristics such as high security.
The reason for water accumulation in the pipe gallery may be as follows: the utility tunnel opening part is intake, utility tunnel structure seam department percolating water, utility tunnel connect export percolating water, wash the percolating water of drainage, water supply pipe interface in the utility tunnel, overhaul evacuation drainage, water supply pipe accident burst pipe drainage etc..
Utility tunnel belongs to the highly intensive underground municipal infrastructure of pipeline, has been commonly used for solving the problem that leads to the frequent excavation of urban road because of pipeline overhauls or dilatation at present, consequently, the inside drainage safety of piping lane is very important to the inside pipeline safety of guarantee piping lane, at present, some domestic piping lanes that have operated have often been few because the condition that inside drainage measure can't be ensured and cause the interior ponding of piping lane even waterflooding, consequently the influence that the interior ponding of taking full account of corridor brought for utility tunnel normal operating during the design time.
Disclosure of Invention
The invention aims to solve the problems in the background art, and provides a drainage system for logistics transportation of an underground pipe gallery, which is beneficial to environmental protection and odor control and realizes drainage of sewage in the pipe gallery.
The purpose of the invention is realized as follows:
the utility model provides a drainage system of underground piping lane commodity circulation transportation, includes the piping lane, along the sump pit that the vertical low-lying department of piping lane set up with locate the drainage mechanism in the sump pit, drainage mechanism include the drainage well and with the drain pipe of drainage well intercommunication, establish dredge pump and vacuum pump in the drainage well, corresponding sewer line outside the dredge pump is connected to the piping lane through the drain pipe, vacuum pump pipe connection is to the deodorization unit, the deodorization unit adopts deodorization biological filter.
Preferably, the sump is provided with at least one, a probe type vacuum collector and a vacuum valve are further arranged in the sump, the probe type vacuum collector is connected with the sump through the vacuum valve, and the probe type vacuum collectors between the adjacent sumps are connected through a negative pressure pipe.
Preferably, the number of the vacuum valves is 2-4, and the drainage capacity of the single vacuum valve is 3-5L/s.
Preferably, the water collecting pit is connected with the drainage ditch through a vacuum tank, and the vacuum tank is provided with an inspection well.
Preferably, the gutter sets up along the full length of piping lane, piping lane cross section terrace is with 1% slope to the escape canal, the vertical slope of escape canal is unanimous with the piping lane longitudinal slope, the escape canal slope is to drainage sump pit.
Preferably, the number of the sewage pumps is at least two, one sewage pump normally runs when the at least two sewage pumps normally work, and the other sewage pump is standby.
Preferably, the supporting check valve and gate valve of establishing on the outlet pipe of dredge pump, the drain pipe runs through piping lane roof department and is provided with waterproof casing.
Preferably, establish synthesis cabin and commodity circulation cabin in the piping lane, be equipped with the water hole between synthesis cabin and the commodity circulation cabin, it connects the sump pit to cross the water hole.
Preferably, the pipe diameter of drain pipe is DN300-DN1400, the buried depth of piping lane is 3-6m, the escape canal alternately enters the corridor as gravity flow mode with the piping lane in the buried depth department of piping lane.
Preferably, still be equipped with ultrasonic wave level gauge, intercommunication hole and moisturizing pipeline in the sump pit, the electric butterfly valve of moisturizing pipeline can long-range chain automatic open, close the valve according to the sump pit liquid level condition, can long-range manual opening, close the valve, can on-the-spot manual opening, close the valve.
Preferably, the design value S of the effect of the wind load borne by the drainage well meets the following requirements:
S=γQSk，
wherein S iskValues of standard effect, gamma, representing combinations of actions at extreme conditions of load-carrying capacityQCoefficient of partial term representing wind load, andQis 1.1-1.5.
Preferably, the standard value omega of the wind load borne by the drainage wellkSatisfies the following conditions:
ωk=βzμsμzω0，
wherein, ω iskRepresenting wind loadStandard value (kN/m)2），βzDenotes the wind vibration coefficient at height z, μsRepresents the wind load body type coefficient, muzIndicating the coefficient of variation of wind pressure altitude, omega0Indicates the basic wind pressure (kN/m)2）。
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a drainage system for logistics transportation of an underground pipe gallery, which adopts a submersible pump to drain water, is provided with water holes and a water collecting pit, the transverse gradient in the pipe gallery is designed to be 2 per thousand, the water collecting pit is designed at the lower point of the longitudinal section of the comprehensive pipe gallery close to one side of a road side line, a submersible sewage pump is arranged in the pit and used for draining water into a corresponding rainwater well outside the gallery, and a thermal water collecting pit also uses the sewage pump to drain water to the inner bottom of the gallery and collect the water to the water collecting pit in the gallery, so that the sewage in the pipe gallery is discharged.
2. According to the drainage system for logistics transportation of the underground pipe gallery, the airtight pipeline is kept in a vacuum state, underground water and soil can be prevented from being polluted, the flow rate of sewage in the pipeline is far greater than the self-purification flow rate in a gravity system, the comprehensive cost of the system is low, the diameter of the vacuum sewage discharge pipe is relatively small, the requirement of no gradient during pipeline laying is met, shallow burying can be freely realized along the terrain, compared with gravity drainage, the cost of the vacuum drainage system in the aspects of pipes, earthwork excavation amount, backfill amount and the like is greatly reduced, the total installed capacity is favorably reduced, the discharge point of waste water is greatly reduced, and negative pressure of the pipeline is favorable for odor control.
3. According to the drainage system for logistics transportation of the underground pipe gallery, provided by the invention, the wastewater of the drainage ditch flows into the water collecting pit, the vacuum valve is started after the water level reaches the set height, the wastewater is sucked into the vacuum pipeline, and after the set time, the vacuum valve is closed, so that one-time pollution discharge is completed.
4. According to the drainage system for logistics transportation of the underground pipe gallery, provided by the invention, each parameter value required for calculating the wind load standard value is determined, the wind load standard value can be obtained according to a formula, the effect design value of the wind load on the drainage well can be obtained, and the structural design can be further carried out on the drainage well structure.
Drawings
Fig. 1 is a schematic structural diagram of a drainage system for logistics transportation of underground pipe galleries.
Fig. 2 is a schematic view of the connection of a drainage system pipe rack and a water collection pit for logistics transportation of an underground pipe rack.
Fig. 3 is a schematic view of a sump of a drainage system for logistics transportation of an underground piping lane according to the present invention.
Fig. 4 is a schematic diagram of a drainage system drainage mechanism for logistics transportation of underground pipe galleries.
In the figure: 1. a pipe gallery; 2. a sump; 3. a drainage mechanism; 31. a drain pipe; 32. a drainage well; 33. a vacuum pump; 34. a sewage pump; 4. a vacuum valve; 5. a probe-type vacuum collector; 6. a negative pressure tube; 7. a vacuum tank; 8. an inspection well; 9. a drainage ditch; 10. a deodorization unit.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
Drainage system in the existing pipe gallery is "sump pit + drain pump", sets up the open drain that drains through the unilateral or two sides at the pipe gallery promptly, sets up the sump pit at the fore-and-aft low point of pipe gallery, and waste water flows into the sump pit through the open drain in the pipe gallery, later promotes through the drain pump and arranges into municipal drainage well, and the interval length of drainage should not be greater than 200 m.
Combine figure 1, a drainage system of underground piping lane commodity circulation transportation, including piping lane 1, along the sump pit 2 that 1 vertical low-lying department of piping lane set up with locate drainage mechanism 3 in sump pit 2, drainage mechanism 3 includes drainage well 32 and the drain pipe 31 that communicates with drainage well 32, is equipped with synthesis cabin and commodity circulation cabin in the piping lane 1, be equipped with the water hole between synthesis cabin and the commodity circulation cabin, water hole connection sump pit 2, the size in water hole is 200mm × 200mm, and horizontal slope design is 2 permillage in the piping lane, is close to road sideline one side department at 1 longitudinal section low point of synthesis piping lane and designs a sump pit 2, establishes dredge pump 34 in the pit, with water drainage to the corresponding rainwater well outside the corridor, heating power sump pit also with dredge pump 34 with water drainage to the inner bottom, converges sump pit 2 in the piping lane, realizes sewage discharge in the synthesis piping lane.
The pipeline kind that the sectional standard of piping lane is high according to holding, specifications, quantity, comprehensive determination such as installation requirement, and be not less than 2.4m, during the longitudinal section design of piping lane, not only will consider the functional requirement, in order to consider the problem of later stage operation maintenance, if be as for a cabin with multiple pipeline, the difficulty is maintained in later stage operation, and the piping lane buried depth is limited by sewage line and wholly deepens, set up a cabin alone with sewage line, can solve the problem that the pipeline maintenance space is not enough, sewage line pipe diameter is great, the control valve of self, the mud valve, discharge valve, equipment such as interface and branch pipe access play need occupy certain inner space, and simultaneously, still reserve certain maintainer syntropy space, consequently, it can make to maintain convenient alone the cabin.
The drain pipe 31 supports on the diapire of piping lane 1, and the pipe diameter of the drain pipe 31 that suitably goes into the lane with the pipeline form is DN300-DN1400, and in the upper reaches part of drain pipe 31, the sewage volume of collecting is very little, and the pipe diameter setting is less, and the risk that produces the siltation is great, if increase pipe diameter, can reduce the slope of pipeline, also notice minimum velocity of flow simultaneously, prevent the siltation.
Example 2
With reference to fig. 1, 2 and 4, a drainage system of transportation of underground piping lane commodity circulation, including piping lane 1, along the sump pit 2 that 1 vertical low-lying department of piping lane set up with locate drainage mechanism 3 in sump pit 2, drainage mechanism 3 includes drainage well 32 and the drain pipe 31 with drainage well 32 intercommunication, establish dredge pump 34 and vacuum pump 33 in the drainage well 32, dredge pump 34 is connected to the outer corresponding sewer line of piping lane 1 through drain pipe 31, vacuum pump 33 pipe connection is to deodorization unit 10, collects drainage function and deodorant function in an organic whole, need not to set up extra exhaust duct, when realizing converging drainage, makes things convenient for the drainage pipe construction and overhauls, has good deodorant function.
The sump pit 2 is connected escape canal 9 through vacuum tank 7, be equipped with inspection shaft 8 on the vacuum tank 7, escape canal 9 sets up along 1 full length of pipe rack, 1 cross section terrace of pipe rack is with 1% slope to escape canal 9, 9 vertical slopes in escape canal are unanimous with 1 vertical slope of pipe rack, 9 slope slopes in escape canal are to drainage sump pit 2.
At least two are established to dredge pump 34, 34 normal operating of one of them dredge pump of two at least dredge pumps 34 normal during operation, another dredge pump 34 is reserve, supporting check valve and the gate valve of establishing on dredge pump 34's the outlet pipe, drain pipe 31 runs through 1 roof department of piping lane and is provided with waterproof sleeve pipe.
The waste water in the drainage ditch 9 flows into the water collecting pit 2, after the water level reaches a set height, the vacuum valve 4 in the water collecting pit 2 is started to suck the waste water into the vacuum pipeline, and after a set time, the vacuum valve 4 is closed to finish one-time pollution discharge.
Dredge pump 34 sets up in piping lane 1 sump 2, and every sump 2 disposes two dredge pumps 34, opens in turn, and each other is for reserve, and dredge pump 34's flow is 25m in the piping lane 13The pump lift is 15m, the power of the motor is 2.2kw, the sewage pumps 34 in each water collecting pit 2 in the pipe gallery 1 are normally used and reserved when running normally, when the pipe gallery 1 is started simultaneously under emergency conditions such as water leakage of water supply pipeline accidents or maintenance and emptying, the accumulated water in the pipe gallery is drained as soon as possible, and the external drainage can be used when necessary.
Example 3
On the basis of embodiment 2, with reference to fig. 3, at least one of the sumps 2 is provided, a probe-type vacuum collector 5 and a vacuum valve 4 are arranged in each sump 2, the probe-type vacuum collector 5 is connected with the sump 2 through the vacuum valve 4, the probe-type vacuum collectors 5 between adjacent sumps 2 are connected through a negative pressure pipe 6, the plurality of sumps 2 are connected to a drainage well 32 through the negative pressure pipe 6, a vacuum pump 33 forms a vacuum condition in a closed drainage pipe 31, and sewage flows to the drainage well 32 by using a pressure difference generated by vacuum negative pressure and is finally discharged to a municipal sewage pipe network or sewage treatment equipment.
Example 4
Combine figure 1, pipe gallery 1's buried depth is 3-6m, escape canal 9 buries the depths and pipe gallery 1 alternately as gravity flow mode gallery at pipe gallery 1, and the buried depth is more shallow, and surface water gathers in rainy season, and is bigger to pipe gallery's water pressure, causes the pipe gallery percolating water, influences pipe gallery's safe operation and life, and pipe gallery deformation joint department has several waterproof processes usually, by outer to interior respectively be waterproofing membrane, outer formula waterstop, joint sealant board, in bury formula waterstop, joint sealant board, joint sealant.
The waterproof procedure is added, the problem that the seam width is enlarged due to uneven settlement of the gallery body cannot be solved after the joint filling glue is cured, 1 asphalt layer is added between the joint filling glue and the buried water stop belt or is fully filled with asphalt, high-strength road petroleum asphalt such as 130# or waterproof and moistureproof petroleum asphalt 6# can be adopted, the asphalt layer can also have certain flexibility in a low-temperature state, and the tensile force caused by uneven settlement can be resisted
The processing of the percolating water of back and pipe gallery operation period is backfilled to the foundation ditch, carries out the shutoff from the movement joint inside of pipe gallery, adopts water inflation sealing rod and water inflation sealing glue shutoff, and water inflation sealing rod must adopt the quick response type, and soaks repeatedly volume expansion rate in the experiment more than 300%. After can ensureing the movement joint percolating water like this, the sealing rod reacts with water and produces 2 ~ 3 times inflation deformation to be full of all irregular surfaces, cavity and the clearance of seam, produce huge contact pressure simultaneously, thoroughly prevent the seepage, meet water inflation and glue and also adopt the quick response type, just so formed 2 waterproof measures in the corridor, can block up the percolating water effectively.
Example 5
Still be equipped with ultrasonic wave level gauge, intercommunication hole, moisturizing pipeline in the sump pit 2, moisturizing pipeline's electric butterfly valve is according to the 2 liquid level circumstances of sump pit, but long-range chain automatic opening, close the valve, can long-range manual opening, close the valve, can on-the-spot manual opening, close the valve, is less than when sump pit 2's liquid level and sets for the liquid level, moisturizing pipeline's electric butterfly valve is automatic to be opened to sump pit 2 moisturizing, and the liquid level reachs when sump pit 2 sets for the liquid level, moisturizing pipeline's electric butterfly valve self-closing.
The ultrasonic wave level gauge sets up a plurality of warning chain points, all liquid level signal is all teletransmission to the main control room, the main control room can open the electric butterfly valve that stops moisturizing pipeline automatically according to the liquid level of sump pit and carry out the moisturizing to the sump pit, the liquid level of automatic start submersible sewage pump to the sump pit carries out the drainage, set up highest liquid level at the sump pit, minimum liquid level warning, give the warning effect to operation maintainer, guarantee the stability of entire system operation, the sump pit is from upwards including minimum liquid level warning chain point down, the minimum liquid level chain point of water seal, the highest liquid level chain point of water seal, submersible sewage pump automatic stop operation chain point, a water pump starts operation chain point, two water pumps start operation chain points simultaneously, the highest liquid level warning water level chain point.
The lowest water absorption level of the sewage pump in the water collection pit is higher than the water seal level, the water supplementing pipeline can prevent the water level of the water collection pit water seal from dropping due to evaporation, and an electric valve and a manual valve are arranged on the water supplementing pipeline.
Example 6
In the early stage of operation, the wind load has the largest influence on the drainage well, so how to calculate and determine the good wind load in the structural design of the drainage well 32 is important, and the design value S of the effect of the wind load on the drainage well 32 meets the following requirements: s = gammaQSkWherein S iskValues of standard effect, gamma, representing combinations of actions at extreme conditions of load-carrying capacityQCoefficient of partial term representing wind load, andQis 1.1-1.5.
SkUsually, the bending moment standard value and the shearing force standard value are obtained, and the most important thing for calculating the bending moment standard value and the shearing force standard value is to determine the wind load standard value omegakAnd the standard value omega of the wind load borne by the drainage wellkSatisfies the following conditions: omegak=βzμsμzω0Wherein, ω iskStandard value (kN/m) representing wind load2），βzDenotes the wind vibration coefficient at height z, μsRepresents the wind load body type coefficient, muzIndicating the coefficient of variation of wind pressure altitude, omega0Indicates the basic wind pressure (kN/m)2）。
Determining each parameter value required for calculating the standard value of the wind load, and obtaining the values according to a formulaWind load standard value omegakThe effect design value of the wind load on the drainage well can be obtained, and the structure design can be further carried out on the drainage well structure.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents and substitutions made within the scope of the present invention should be included.

Claims (8)

1. The utility model provides a drainage system of underground piping lane commodity circulation transportation which characterized in that: including piping lane (1), along sump pit (2) that vertical low-lying department of piping lane (1) set up and locate drainage mechanism (3) in sump pit (2), drainage mechanism (3) include drainage well (32) and drain pipe (31) with drainage well (32) intercommunication, establish dredge pump (34) and vacuum pump (33) in drainage well (32), dredge pump (34) are connected to the outer corresponding sewer line of piping lane (1) through drain pipe (31), vacuum pump (33) pipe connection is to deodorization unit (10).
2. The drainage system for logistics transportation of underground galleries according to claim 1, characterized in that: at least one is established in sump pit (2), still be equipped with in sump pit (2) and visit gun formula vacuum collector (5) and vacuum valve (4), visit gun formula vacuum collector (5) and pass through vacuum valve (4) and connect sump pit (2), visit gun formula vacuum collector (5) between adjacent sump pit (2) are connected through negative pressure pipe (6).
3. The drainage system for logistics transportation of underground pipe galleries according to claim 2, characterized in that the number of the vacuum valves (4) is 2-4, and the drainage capacity of the single vacuum valve (4) is 3-5L/s.
4. The drainage system for logistics transportation of underground galleries according to claim 1, characterized in that: the water collecting pit (2) is connected with a drainage ditch (9) through a vacuum tank (7), and an inspection well (8) is arranged on the vacuum tank (7).
5. The drainage system for logistics transportation of underground galleries according to claim 4, wherein: escape canal (9) set up along the full length of piping lane (1), piping lane (1) cross section terrace is with 1% slope to escape canal (9), the vertical slope of escape canal (9) is unanimous with piping lane (1) longitudinal slope, escape canal (9) slope is to drainage sump pit (2).
6. The drainage system for logistics transportation of underground galleries according to claim 1, characterized in that: the number of the sewage pumps (34) is at least two, one sewage pump (34) normally runs when the at least two sewage pumps (34) normally work, and the other sewage pump (34) is standby.
7. The drainage system for logistics transportation of underground galleries according to claim 1, characterized in that: the water outlet pipe of the sewage pump (34) is provided with a check valve and a gate valve in a matching mode, and the drainage pipe (31) penetrates through the top plate of the pipe gallery (1) and is provided with a waterproof sleeve.
8. The drainage system for logistics transportation of underground galleries according to claim 1, characterized in that: the deodorization unit (10) adopts a deodorization biological filter.
CN202010420561.2A 2020-05-18 2020-05-18 Drainage system for logistics transportation of underground pipe gallery Pending CN111501950A (en)

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Cited By (2)

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CN113250244A (en) * 2021-06-16 2021-08-13 中冶京诚工程技术有限公司 Drainage structure and utility tunnel in utility tunnel natural gas cabin
WO2022156093A1 (en) * 2021-01-19 2022-07-28 西京学院 Drainage and exhaust structure and method for submarine vacuum pipeline

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