CN206736966U - Possesses the underground water conduit valve pit of microcirculation ventilation - Google Patents
Possesses the underground water conduit valve pit of microcirculation ventilation Download PDFInfo
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- CN206736966U CN206736966U CN201720488398.7U CN201720488398U CN206736966U CN 206736966 U CN206736966 U CN 206736966U CN 201720488398 U CN201720488398 U CN 201720488398U CN 206736966 U CN206736966 U CN 206736966U
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- steel pipe
- valve pit
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- valve
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Abstract
The utility model discloses a kind of underground water conduit valve pit for possessing microcirculation ventilation, including valve pit and cover plate, through the aqueduct and valve and valve management mechanism of valve pit side wall, it is being vertically arranged an air inlet steel pipe and an outlet steel pipe at the top of cover plate at diagonal position respectively, inlet, outlet diameter of steel tube is 0.1m~0.2m, and the outer surface of inlet, outlet steel pipe is coated with black anti-rust paint；The lower nozzle elevation of air inlet steel pipe is consistent with the bottom surface elevation of cover plate, and the upper orifice elevation of air inlet steel pipe is higher by cover plate upper surface 0.6m；The lower nozzle elevation of outlet steel pipe and the distance of valve pit bottom plate are 0.8m, and the upper orifice elevation of outlet steel pipe is higher by cover plate upper surface 2m~2.7m；Air inlet steel pipe is fixed in valve pit room by support.The utility model is exchanged pernicious gas discharging underground water conduit valve pit, good working environment is created for operating personnel, ensure the life security of operating personnel naturally according to the natural law by air.
Description
Technical field
Underground water conduit valve pit is the utility model is related to, more particularly, to the underground water conduit for possessing microcirculation ventilation
Valve pit.
Background technology
In the big canal long distance water transfer field in great river, long range water supply underground waterline setting current-regulating voltage-regulating valve pit,
Exhaust valve pit, maintenance valve pit etc. are essential underground valve pit buildings, and staff, which needs to be periodically into underground valve pit, to build
Build and maked an inspection tour in thing or upkeep operation, when pipe explosion accident occurs in local lower water-supply-pipe road, staff needs to timely enter ground
Valve operation is carried out in lower valve pit building.At present, staff runs into the course of the work has the problem of to be solved to have：1st, valve
Air is dirty in well, peculiar smell weight, has a strong impact on the health of staff；Typical example is that staff safeguards in valve pit
Occur dizzy or even confused fault in device procedures, influence life security；Therefore, valve pit maked an inspection tour, safeguarded, overhauled needs and shift to an earlier date
Valve pit was entered into manhole cover in one day to open, labor waste is serious.2nd, the hardware such as aqueduct, valve, metal cat ladder occurs
Corrosion.3rd, humidity is excessive in valve pit, and valve pit wall, top plate condensation occur and dripped, excess surface water.By to above-mentioned produced problem point
Analysis, its reason are mainly that ventilation is not smooth in valve pit, and valve pit lamina tecti only has a diameter of 0.2m ventilation steel pipe, under steel pipe
Mouth of pipe elevation is consistent with the bottom surface elevation of valve pit lamina tecti, and the upper orifice elevation of steel pipe is higher by than valve pit lamina tecti upper surface
0.6m.This pernicious gas molal weight resulted in valve pit is more than the molal weight of air, and pernicious gas is deposited on valve pit bottom
Portion does not have passage exclusion；There is condensate in valve pit, gas molar quality is more than the molal weight of the outer air of valve pit in valve pit, only leans on
Diameter 0.2m ventilation steel pipe reduces air humidity in valve pit at one, and effect is poor.
The content of the invention
The utility model purpose is to provide a kind of underground water conduit valve pit for possessing microcirculation ventilation.
To achieve the above object, the utility model takes following technical proposals：
The underground water conduit valve pit described in the utility model for possessing microcirculation ventilation, include the valve of reinforced concrete structure
Well and cover plate, sealing are arranged on described through the aqueduct and valve and valve management mechanism of the valve pit bottom sidewall
Enter manhole on cover plate；It is being vertically arranged an air inlet steel pipe and an outlet steel at the top of the cover plate at diagonal position respectively
Pipe, the inlet, outlet diameter of steel tube is 0.1m~0.2m, and the outer surface of inlet, outlet steel pipe is coated with black anti-rust paint；Enter
The lower nozzle elevation of gas steel pipe is consistent with the bottom surface elevation of cover plate, and the upper orifice elevation of air inlet steel pipe is higher by cover plate upper surface
0.6m；The lower nozzle elevation of outlet steel pipe and the distance of valve pit bottom plate are 0.8m, and the upper orifice elevation of outlet steel pipe is higher by cover plate
Upper surface 2m~2.7m；Air inlet steel pipe is fixed in valve pit room by support.
The upper orifice of the air inlet steel pipe and outlet steel pipe is all provided with being set to elbow structure, avoids rainy season rainwater from entering by pipeline
Enter in valve pit room.
The utility model advantage is the foundation natural law, using air under identical atmospheric pressure, the temperature of air,
Molal weight that humidity is presented in different environments is different, by the area that atmospheric pressure is identical, air molal weight value is different at two
Domain is connected with vertical pipe, and molal weight is worth low upward motion of air in vertical pipe, passes through the sky in vertical pipe
Gas has wind-drawing effect, forms microcirculation working condition.Microcirculation air exchanging method is used in underground water conduit valve pit, by ground
Air and the air exchange of its outside in lower water-supply-pipe road valve pit, solve pernicious gas and are deposited in underground water conduit valve pit
Problem, exchanged naturally by air and pernicious gas is discharged into underground water conduit valve pit, good work is created for operating personnel
Environment, ensure the life security of operating personnel.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is underground water conduit valve pit summer day day with high temperature illumination time microcirculation pattern allusion quotation described in the utility model
Type schematic diagram.
Fig. 3 is underground water conduit valve pit cold time microcirculation pattern canonical schema described in the utility model.
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with the accompanying drawings, the present embodiment is with the utility model technology
Implemented under premised on scheme, give detailed embodiment and specific operating process, but protection of the present utility model
Scope is not limited to following embodiments.
As shown in figure 1, the underground water conduit valve pit described in the utility model for possessing microcirculation ventilation, including reinforced concrete
The valve pit 1 and cover plate 2 of soil structure, aqueduct 3 and valve 4 and valve management mechanism of the sealing through the bottom sidewall of valve pit 1
5, it is arranged on cover plate 2 and enters manhole 6；An air inlet steel pipe 7 and one are vertically arranged respectively at the top diagonal position of cover plate 2
Outlet steel pipe 8, inlet, outlet steel pipe 7,8 diameters are 0.1m~0.2m, and the outer surface of inlet, outlet steel pipe 7,8 is coated with black
Antirust paint；The lower nozzle elevation of air inlet steel pipe 7 is consistent with the bottom surface elevation of cover plate 2, and the upper orifice elevation of air inlet steel pipe 7 is higher by lid
The upper surface 0.6m of plate 2；The lower nozzle elevation of outlet steel pipe 8 and the distance of valve pit bottom plate 9 are 0.8m, the upper orifice of outlet steel pipe 8
Elevation is higher by the upper surface 2m~2.7m of cover plate 2；Air inlet steel pipe 7 is fixed in valve pit room by support 10；Air inlet steel pipe 7 and outlet
The upper orifice of steel pipe 8 is all provided with being set to elbow structure, avoids rainy season rainwater from entering by pipeline in valve pit room.
According to the functional requirement of engineering construction, in water delivery engineering, select relevant current-regulating voltage-regulating valve pit, maintenance valve pit,
Valve pit, flowmeter well, cable shaft etc. are vented as ventilation object.Ventilation volume, valve are determined according to the useful space size in valve pit 1
The useful space in well 1 is more than 100m3Under the conditions of, air inlet steel pipe 7 selects DN200 with outlet steel pipe 8；Effective sky in valve pit 1
Between 50m3~100m3Under the conditions of, air inlet steel pipe 7 selects DN150 with outlet steel pipe 8；The useful space in valve pit 1 is less than 50m3Bar
Under part, air inlet steel pipe 7 selects DN100 with outlet steel pipe 8.Air inlet steel pipe 7 is equal exposed to the outdoor section of valve pit 1 with outlet steel pipe 8
Brush black corrosion resistant coating.
The determination of the length of outlet steel pipe 8：Valve pit depth is more than under the conditions of 5m, and outlet steel pipe 8 is exposed to the outdoor of valve pit 1
Vertical length is 2.7m, and outlet steel pipe 8 is the lower nozzle of outlet steel pipe 8 away from valve pit flooring 0.8m in valve pit chamber interior length；
The depth of valve pit 1 is less than under the conditions of 5m, and outlet steel pipe 8 is the total length of air inlet steel pipe 7 exposed to the vertical length of the outdoor of valve pit 1
1/3rd, but it is not less than 2.0m.Length of the outlet steel pipe 8 in the Room of valve pit 1 be the lower nozzle of outlet steel pipe 8 away from valve pit room
Face 0.8m.
The determination of the length of air inlet steel pipe 7：Length of the air inlet steel pipe 7 outside the Room of valve pit 1 is 0.6m, under air inlet steel pipe 7
The mouth of pipe and the lower surface of cover plate 2 are mutually neat.
The upper end of air inlet steel pipe 7, outlet steel pipe 8 is fabricated to elbow shapes, prevents rainwater from entering in valve pit room.Air inlet steel
Do waterproof closure processing in gap between pipe 7, outlet steel pipe 8 and cover plate 2.Part of the outlet steel pipe 8 in the Room of valve pit 1 regards pipe range
Make support 10 with valve pit depth to fix, 10 fixing points of support can do one or more.
Valve pit microcirculation operation principle described in the utility model is summarized as follows：
As shown in Fig. 2 it is summer day day with high temperature illumination time microcirculation pattern canonical schema.
The microcirculation ventilatory pattern of valve pit 1 occurs in summer day day with high temperature illumination time, the outer tube wall brush black of outlet steel pipe 8
Corrosion resistant coating absorption solar energy effect is good, and outlet steel pipe 8 is located at 1 outer 2.7m of valve pit parts under strong solar radiation, forms outlet steel
The high temperature section of pipe 8, the maximum temperature of outlet steel pipe 8 can reach more than 60 DEG C, and the air themperature in valve pit 1 is about 30 DEG C, outside valve pit 1
Air themperature be about 27 DEG C~37 DEG C.Outlet steel pipe 8, which is located at outside valve pit 1, is divided into high temperature section, and outlet steel pipe 8 is located at valve pit 1
Inside is divided into low-temperature zone, in the outer air → air inlet steel pipe → valve pit of air formation valve pit under the conditions of being somebody's turn to do → outlet steel pipe bottom →
In outlet steel pipe lower tube → outlet steel pipe upper tube in → the microcirculation flow pattern of the outer air of valve pit, drive air microcirculation
Energy come from the solar energy that the high temperature pipeline section that the top of outlet steel pipe 8 is located at outside valve pit 1 absorbs.The microcirculation pattern valve pit 1
Interior ventilation effect is optimal.
As shown in figure 3, it is cold time microcirculation pattern canonical schema.
Valve pit microcirculation ventilation ring mode occurs cold time, outlet steel pipe 8 under Low Night Temperature in the winter time and is located at outside valve pit 1
2.7m portion temperatures are minimum below 0 DEG C, and the air themperature in valve pit 1 is about 10 DEG C~15 DEG C.Outlet steel pipe 8 is located at valve pit 1
Outside is divided into low-temperature zone, and outlet steel pipe 8 is located inside valve pit 1 and is divided into high temperature section.Outer air → the air inlet of valve pit is formed under the conditions of being somebody's turn to do
In steel pipe → valve pit → outlet steel pipe bottom → outlet steel pipe lower tube in → outlet steel pipe upper tube in → valve pit outer air
Microcirculation pattern, the heat that the energy of driving air microcirculation comes from ground temperature energy and the reclaimed water of aqueduct 3 discharges in valve pit
Energy.Ventilation effect is slightly poorer than summer day day with high temperature illumination time microcirculation pattern in the microcirculation pattern valve pit 1, but still is able to
Meet that ventilation requires in valve pit 1.
Claims (2)
1. a kind of underground water conduit valve pit for possessing microcirculation ventilation, includes the valve pit and cover plate of reinforced concrete structure, close
Envelope is arranged on the cover plate through the aqueduct and valve and valve management mechanism of the valve pit bottom sidewall and enters people
Hole；It is characterized in that：It is being vertically arranged an air inlet steel pipe and an outlet steel pipe at the top of the cover plate at diagonal position respectively,
The inlet, outlet diameter of steel tube is 0.1m~0.2m, and the outer surface of inlet, outlet steel pipe is coated with black anti-rust paint；Air inlet
The lower nozzle elevation of steel pipe is consistent with the bottom surface elevation of cover plate, and the upper orifice elevation of air inlet steel pipe is higher by cover plate upper surface 0.6m；
The lower nozzle elevation of outlet steel pipe and the distance of valve pit bottom plate are 0.8m, and the upper orifice elevation of outlet steel pipe is higher by cover plate upper surface
2m~2.7m；Air inlet steel pipe is fixed in valve pit room by support.
2. possess the underground water conduit valve pit of microcirculation ventilation according to claim 1, it is characterised in that：The air inlet steel
The upper orifice of pipe and outlet steel pipe is all provided with being set to elbow structure, avoids rainy season rainwater from entering by pipeline in valve pit room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488398.7U CN206736966U (en) | 2017-05-04 | 2017-05-04 | Possesses the underground water conduit valve pit of microcirculation ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488398.7U CN206736966U (en) | 2017-05-04 | 2017-05-04 | Possesses the underground water conduit valve pit of microcirculation ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206736966U true CN206736966U (en) | 2017-12-12 |
Family
ID=60562892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720488398.7U Active CN206736966U (en) | 2017-05-04 | 2017-05-04 | Possesses the underground water conduit valve pit of microcirculation ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206736966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001418A (en) * | 2020-07-28 | 2022-02-01 | 丰田自动车株式会社 | Ventilation system |
-
2017
- 2017-05-04 CN CN201720488398.7U patent/CN206736966U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001418A (en) * | 2020-07-28 | 2022-02-01 | 丰田自动车株式会社 | Ventilation system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Zhengzhou Jinshui Road, Henan, No. 109 Patentee before: Yellow River Engineering Consulting Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |