CN109026145A - A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel - Google Patents
A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel Download PDFInfo
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- CN109026145A CN109026145A CN201810994695.8A CN201810994695A CN109026145A CN 109026145 A CN109026145 A CN 109026145A CN 201810994695 A CN201810994695 A CN 201810994695A CN 109026145 A CN109026145 A CN 109026145A
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- storage tank
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- vacuum
- suction
- solenoid valve
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 21
- 239000010865 sewage Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000009825 accumulation Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
- F04F5/52—Control of evacuating pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
Abstract
The invention discloses a kind of distributing low-pressure drainage systems suitable for the low-lying point of transit tunnel, including compressed air source, force main and several pump units, the compressed air source is connected by force main with several pump units, and the pump unit is placed in low-lying water accumulation part；The pump unit includes vacuum ejector, the first storage tank, the second storage tank and suction probe；The vacuum ejector is configurable for air in the first storage tank of suction and the second storage tank, and is maintained at the first storage tank and the second storage tank under certain vacuum degree；First storage tank and the second storage tank are configured as by being sucked by vacuum low-lying place's ponding；It is connected with compressed air source, and sewage in tank is discharged by the positive pressure that compressed air source generates；The suction probe issues signal and aspirates for controlling the first storage tank or the second storage tank for detecting low-lying place's ponding liquid level.
Description
Technical field
The present invention relates to vacuum drainage fields, and in particular to a kind of distributing vacuum row suitable for the low-lying point of transit tunnel
Water system.
Background technique
In transit tunnel, especially in underground rail traffic engineering, percolating water is serious, builds low-lying point in equipment foundation pit etc.
Ponding easy to form, point multi-panel dissipate, and discharge is difficult.Pit water accumulation will cause equipment corrosion damage, seriously affects equipment and uses the longevity
Life and operational safety；And it is easy pollution tunnel environment.Main at present pass through is arranged small-sized draining pump, manually bails, vacuum pump
The measures such as form of standing draining, to ensure operation security with all strength.But small-sized draining pump is often burnt because of reasons such as frequent starting, evacuations
It ruins；When displacement is big, manually bails and have little time, at the same need artificial 24 hours it is on duty；Vacuum Pumps Station needs to mention for vacuum equipment
For larger installation space, and it need to be laid with longer vacuum line, system complex, when critical component breaks down, each foundation pit row
Water spot will all cannot be used continuously.
Summary of the invention
In order to solve the deficiencies in the prior art, it is true that the present invention devises a kind of distributing suitable for the low-lying point of transit tunnel
Idle discharge water system, the present invention generate vacuum by vacuum ejector in storage tank, and are maintained under certain vacuum degree, when low
When low-lying area point suction probe detects liquid level, vacuum valve is opened, and sewage is drawn in storage tank under the action of inside and outside differential pressure；Work as dirt
After water reaches storage tank setting liquid level, then compressed air source is connected to storage tank, is arrived sewage discharge by way of positive pressure push
In neighbouring dedicated gutter.The distributing low-pressure drainage system of the low-lying point of transit tunnel of the present invention can comprehensively solve transit tunnel set
Standby foundation pit etc. builds the problems such as low-lying dot product water spot multi-panel dissipates, discharge is difficult, drainage equipment installation is complicated.
To achieve the goals above, technical scheme is as follows:
A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel, including compressed air source, force main
With several pump units, the compressed air source is connected by force main with several pump units, and the pump unit is placed in
Low-lying water accumulation part；
The pump unit includes vacuum ejector, the first storage tank, the second storage tank and suction probe；
The vacuum ejector is configurable for air in the first storage tank of suction and the second storage tank, and makes first to deposit
Storage tank and the second storage tank are maintained under certain vacuum degree；
First storage tank and the second storage tank are configured as by being sucked by vacuum low-lying place's ponding；With
It is connected with compressed air source, and sewage in tank is discharged by the positive pressure that compressed air source generates；
The suction probe for detecting low-lying place's ponding liquid level, and issue signal for control the first storage tank or second
Storage tank suction.
Further, described vacuum ejector one end is connected by the first ball valve with force main, and one end is by vacuumizing
Pipeline is connected with the first storage tank and the second storage tank, and the vacuum-pumping tube road is equipped with the first suction solenoid valve and the second air-breathing
Solenoid valve, first suction solenoid valve are used to control the vacuuming action of the first storage tank, and second suction solenoid valve is used
In the vacuuming action for controlling the second storage tank.
Further, it is equipped with vacuum transducer in first storage tank and the second storage tank, the vacuum transducer is used
Vacuum degree in the first storage tank of detection and the second storage tank, the vacuum degree in the first storage tank and/or the second storage tank
When lower than the first setting value, start vacuum ejector, and open corresponding suction solenoid valve, increases the first storage tank and/or the
The vacuum degree of two storage tanks, when the vacuum degree in the first storage tank and/or the second storage tank reaches the second setting value, air-breathing electricity
Magnet valve is closed, and vacuum ejector is out of service, is completed pump unit vacuum degree and is established.
Further, the pump orifice of first storage tank and the second storage tank passes through the first vacuum valve and second very respectively
Empty valve is connected with suction pipeline, and the suction pipeline is connected with suction probe, and the suction pipeline is equipped with third ball valve, works as pumping
When suction probe detects that low-lying place's ponding reaches corresponding liquid level, corresponding vacuum valve is opened, so that ponding is in inside and outside differential pressure
It is drawn under effect in the first storage tank or the second storage tank, after low-lying place's ponding is sucked, closes corresponding vacuum
Valve is completed ponding at low-lying point and is aspirated.
Further, the air inlet of first storage tank and the second storage tank passes through the first intake solenoid valve and respectively
Two intake solenoid valves are connected with compressed air source, and the discharge outlet of first storage tank and the second storage tank passes through first row respectively
Water solenoid valve and the second drain solenoid valve are connected with discharge pipe line.
Further, liquid level sensor is equipped in first storage tank and the second storage tank, when the first storage tank and/or
When second storage tank internal water accumulation reaches high liquid level, corresponding vacuum valve is closed, and corresponding intake solenoid valve and drain solenoid valve are same
When open, sewage in the first storage tank and/or the second storage tank is discharged into discharge pipe line by positive pressure, when the first storage tank
And/or when the second emptying of sewage in storage tank, corresponding intake solenoid valve and drain solenoid valve are closed, and complete sewage in storage tank
Discharge.
Vacuumizing for the vacuum ejector does not carry out simultaneously with the first storage tank and/or the second storage tank draining movement.
Further, the suction water inlet of the suction probe is porous structure, to prevent big object block system.
Further, the pump unit further includes electric cabinet, and the electric cabinet controls cable respectively and very by signal
Empty injector, each vacuum valve, each solenoid valve, suction probe, liquid level sensor are connected with vacuum transducer.
Further, the electric cabinet is PLC electric cabinet.
Further, first storage tank and the second storage tank mutual backup.
Compared with prior art, the beneficial effects of the present invention are:
1) each pump unit has independent pumped vacuum systems, and it is single that single pump unit failure will not influence other suctions
Member works normally.
2) storage tank is the using and the reserved, it can be achieved that continuously quickly aspirating, discharging to sewage in each pump unit.
3) blowdown of storage tank is using positive pressure push mode, it can be achieved that the sewage discharge of certain distance.
4) system is automatically controlled using PLC, suction, discharge movement can be automatically performed, without artificial on duty.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is control system architecture schematic diagram of the invention.
Wherein, 1, vacuum ejector, the 2, first suction solenoid valve, the 3, second intake solenoid valve, the 4, second suction solenoid valve,
5, third ball valve, the 6, second vacuum valve, the 7, first vacuum valve, 8, electric cabinet, the 9, second storage tank, the 10, second drain solenoid valve,
11, the first drain solenoid valve, the 12, first storage tank, the 13, first intake solenoid valve, the 14, first ball valve, the 15, second ball valve.
Specific embodiment
The present invention is described further with specific embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this hair
Bright each component or component structure relationship and the relative of determination, not refer in particular to either component or element in the present invention, cannot understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and indicate may be a fixed connection,
It is also possible to be integrally connected or is detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the present invention as the case may be,
It is not considered as limiting the invention.
As background technique is introduced, the low-lying dot product water spot multi-panel of transit tunnel exists in the prior art and dissipates, discharge is tired
Difficult problem, in order to solve technical problem as above, this application provides a kind of distributings suitable for the low-lying point of transit tunnel
Low-pressure drainage system, can the low-lying dot product water spot multi-panel of the building such as comprehensively solve transit tunnel equipment foundation pit dissipates, discharge is difficult, draining
The problems such as equipment installation is complicated.
As shown in Figure 1, a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel, including compressed air
Source, force main and several pump units, the compressed air source are connected by force main with several pump units, the pumping
It inhales unit and is placed in low-lying water accumulation part；
The pump unit shares the same compressed air source and force main；
The pump unit includes vacuum ejector 1, the first storage tank 12, the second storage tank 9 and suction probe；
The vacuum ejector 1 is configurable for air in the first storage tank 12 of suction and the second storage tank 9, and makes the
One storage tank 12 and the second storage tank 9 are maintained under certain vacuum degree；
First storage tank 12 and the second storage tank 9 are configured as by being sucked by vacuum low-lying place's ponding；With
It is connected with compressed air source, and sewage in tank is discharged by the positive pressure that compressed air source generates；
The suction probe for low-lying place's ponding liquid level such as detection device foundation pit, and issue signal for control first deposit
Storage tank 12 or the suction of the second storage tank 9.
Described vacuum ejector one end is connected by the first ball valve 14 with force main, and one end passes through vacuum-pumping pipeline and the
One storage tank 12 is connected with the second storage tank 9, and the vacuum-pumping tube road is equipped with the first suction solenoid valve 2 and the second air-breathing electromagnetism
Valve 4, first suction solenoid valve 2 are used to control the vacuuming action of the first storage tank 12, and second suction solenoid valve 4 is used
In the vacuuming action for controlling the second storage tank 9.
It is equipped with vacuum transducer in first storage tank 12 and the second storage tank 9, the vacuum transducer is for detecting
Vacuum degree in first storage tank 12 and the second storage tank 9, the vacuum degree in the first storage tank 12 and/or the second storage tank 9
When lower than the first setting value, start vacuum ejector 1, and open corresponding suction solenoid valve 2 and/or 4, increases by the first storage tank
12 and/or second storage tank 9 vacuum degree, set when the vacuum degree in the first storage tank 12 and/or the second storage tank 9 reaches second
When definite value, suction solenoid valve is closed, and vacuum ejector 1 is out of service, is completed pump unit vacuum degree and is established.
First setting value is preferably 30kPa, and second setting value is preferably 60kPa.
The pump orifice of first storage tank 12 and the second storage tank 9 passes through the first vacuum valve 7 and the second vacuum valve 6 respectively
It is connected with suction pipeline, the suction pipeline is connected with suction probe, and the suction pipeline is equipped with third ball valve 5, works as suction
When probe detects that low-lying place's ponding such as equipment foundation pit reaches corresponding liquid level, corresponding vacuum valve is opened, so that including ponding
It is drawn under the action of external differential in the first storage tank 12 or the second storage tank 9, after low-lying place's ponding is sucked, closes
Corresponding vacuum valve completes ponding suction at the low-lying points such as equipment foundation pit.
The air inlet of first storage tank 12 and the second storage tank 9 pass through respectively the first intake solenoid valve 13 and second into
Pneumoelectric magnet valve 3 is connected with compressed air source, and the discharge outlet of first storage tank 12 and the second storage tank 9 passes through first row respectively
Water solenoid valve 11 and the second drain solenoid valve 10 are connected with discharge pipe line.
First intake solenoid valve 13 and the second intake solenoid valve 3 are set on air inlet pipeline, on the air inlet pipeline with
Force main junction is additionally provided with the second ball valve 15.
It is equipped with liquid level sensor in first storage tank 12 and the second storage tank 9, when the first storage tank 12 and/or second
When 9 internal water accumulation of storage tank reaches high liquid level, corresponding vacuum valve is closed, and corresponding intake solenoid valve and drain solenoid valve are beaten simultaneously
It opens, provides positive pressure for ponding discharge, sewage in the first storage tank 12 and/or the second storage tank 9 is discharged into drainpipe by positive pressure
Lu Zhong, when sewage empties in the first storage tank 12 and/or the second storage tank 9, corresponding intake solenoid valve and drain solenoid valve
It closes, completes sewage discharge in storage tank.
The vacuum ejector 1 vacuumize from when the first storage tank 12 and/or different the second storage tank 9 draining movement into
Row.
The suction water inlet of the suction probe is porous structure, to prevent big object block system.
The pump unit further includes electric cabinet 8, the electric cabinet 8 by signal control cable respectively with vacuum ejector
1, each vacuum valve 6 and 7, each solenoid valve 2,3,4,10,11 and 13, each ball valve 5,14 and 15, suction probe, liquid level sensor and true
Empty sensor is connected.
The electric cabinet 8 is PLC electric cabinet, and the PLC electric cabinet can be automatically controled the operation of each equipment, be automatically performed pumping
Vacuum, suction and discharge movement, without artificial on duty.
9 mutual backup of first storage tank 12 and the second storage tank is continuously quickly aspirated and is discharged to sewage to realize.
The working principle of the invention:
When system works, compressed air is provided for each pump unit by force main；Vacuum ejector 1 is true by taking out
Blank pipe road forms parital vacuum in the first storage tank 12 and the second storage tank 9, when the first storage tank 12 and/or the second storage tank
In 9 when vacuum degree deficiency, automatically controls vacuum ejector 1 and suction solenoid valve carries out vacuuming action, supplement the first storage tank
12 and/or second vacuum degree in storage tank 9.All solenoid valves and vacuum valve are in close state under standby mode, and ball valve is in
Open state.When having liquid level inductive signal at low-lying, the first vacuum valve 7 is opened, and ponding enters first by suction pipeline
In storage tank 12, when liquid level signal disappears at low-lying point, the first vacuum valve 7 is closed, and completion evacuates ponding at low-lying point.System
System waits liquid level inductive signal at low-lying point next time.It is low-lying when ponding flow is larger at low-lying point in ponding aspiration procedure
Liquid level signal does not disappear at point, and sewage reaches high liquid level signal in the first storage tank 12, and the first vacuum valve 7 is closed at this time, and second
Vacuum valve 6 is opened, and ponding is sucked up in the second storage tank 9 at low-lying point, while the first intake solenoid valve 13 and the first draining
Solenoid valve 11 is opened, and the sewage in the first storage tank 12 is pushed to neighbouring dedicated gutter by discharge pipe line positive pressure, when the
When sewage empties in one storage tank 12, the first intake solenoid valve 13 and the first drain solenoid valve 11 are closed, vacuum ejector 1 and the
One air-breathing electromagnetism, 2 valve is opened, and establishes parital vacuum for the first storage tank 12.First storage tank 12 and the second storage tank 9 are standby each other
With relationship, do not work at the same time.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel, it is characterised in that: including compressed air source,
Force main and several pump units, the compressed air source are connected by force main with several pump units, the suction
Unit is placed in low-lying water accumulation part；
The pump unit includes vacuum ejector, the first storage tank, the second storage tank and suction probe；
The vacuum ejector is configurable for air in the first storage tank of suction and the second storage tank, and makes the first storage tank
It is maintained at the second storage tank under certain vacuum degree；
First storage tank and the second storage tank are configured as by being sucked by vacuum low-lying place's ponding；With
It is connected with compressed air source, and sewage in tank is discharged by the positive pressure that compressed air source generates；
The suction probe for detecting low-lying place's ponding liquid level, and issue signal for control the first storage tank or second store
Tank suction.
2. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as described in claim 1, feature exist
In described vacuum ejector one end is connected by the first ball valve with force main, and one end passes through vacuum-pumping pipeline and the first storage
Tank and the second storage tank are connected, and the vacuum-pumping tube road is equipped with the first suction solenoid valve and the second suction solenoid valve, and described the
One suction solenoid valve is used to control the vacuuming action of the first storage tank, and second suction solenoid valve is for controlling the second storage
The vacuuming action of tank.
3. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as claimed in claim 2, feature exist
In equipped with vacuum transducer in first storage tank and the second storage tank, the vacuum transducer is for detecting the first storage
Vacuum degree in tank and the second storage tank, when the vacuum degree in the first storage tank and/or the second storage tank is lower than the first setting value
When, start vacuum ejector, and open corresponding suction solenoid valve, increases the vacuum of the first storage tank and/or the second storage tank
Degree, when the vacuum degree in the first storage tank and/or the second storage tank reaches the second setting value, suction solenoid valve is closed, vacuum
Injector is out of service, completes pump unit vacuum degree and establishes.
4. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as described in claim 1, feature exist
In the pump orifice of first storage tank and the second storage tank passes through the first vacuum valve and the second vacuum valve and suction pipeline respectively
Be connected, the suction pipeline is connected with suction probe, the suction pipeline equipped with third ball valve, when suction probe detect it is low
When depression ponding reaches corresponding liquid level, corresponding vacuum valve is opened, so that ponding is drawn under the action of inside and outside differential pressure
In one storage tank or the second storage tank, after low-lying place's ponding is sucked, corresponding vacuum valve is closed, is completed at low-lying point
Ponding suction.
5. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as claimed in claim 4, feature exist
In, the air inlet of first storage tank and the second storage tank pass through respectively the first intake solenoid valve and the second intake solenoid valve with
Compressed air source is connected, and the discharge outlet of first storage tank and the second storage tank passes through the first drain solenoid valve and second respectively
Drain solenoid valve is connected with discharge pipe line.
6. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as claimed in claim 5, feature exist
In equipped with liquid level sensor in first storage tank and the second storage tank, when the first storage tank and/or the second storage tank inner product
When water reaches high liquid level, corresponding vacuum valve is closed, and corresponding intake solenoid valve and drain solenoid valve open simultaneously, first deposited
Sewage is discharged into discharge pipe line by positive pressure in storage tank and/or the second storage tank, when in the first storage tank and/or the second storage tank
When sewage empties, corresponding intake solenoid valve and drain solenoid valve are closed, and complete sewage discharge in storage tank.
7. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as described in claim 1, feature exist
In the suction water inlet of the suction probe is porous structure, to prevent big object block system.
8. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as described in claim 1, feature exist
In, the pump unit further includes electric cabinet, the electric cabinet by signal control cable respectively with vacuum ejector, each vacuum
Valve, each solenoid valve, suction probe, liquid level sensor are connected with vacuum transducer.
9. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as claimed in claim 8, feature exist
In the electric cabinet is PLC electric cabinet.
10. a kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel as described in claim 1, feature exist
In first storage tank and the second storage tank mutual backup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810994695.8A CN109026145A (en) | 2018-08-29 | 2018-08-29 | A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810994695.8A CN109026145A (en) | 2018-08-29 | 2018-08-29 | A kind of distributing low-pressure drainage system suitable for the low-lying point of transit tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118148705A (en) * | 2024-05-11 | 2024-06-07 | 中国铁路设计集团有限公司 | Vacuum drainage system for tunnel |
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| CN118148705B (en) * | 2024-05-11 | 2024-07-05 | 中国铁路设计集团有限公司 | Vacuum drainage system for tunnel |
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