CN105840888A - Dry-wet separation type check valve for hydraulic tunnel engineering - Google Patents
Dry-wet separation type check valve for hydraulic tunnel engineering Download PDFInfo
- Publication number
- CN105840888A CN105840888A CN201610303904.0A CN201610303904A CN105840888A CN 105840888 A CN105840888 A CN 105840888A CN 201610303904 A CN201610303904 A CN 201610303904A CN 105840888 A CN105840888 A CN 105840888A
- Authority
- CN
- China
- Prior art keywords
- piston
- row water
- water hole
- mounting holes
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000926 separation method Methods 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000007789 sealing Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a dry-wet separation type check valve for hydraulic tunnel engineering and relates to the check valve for the hydraulic tunnel engineering. The dry-wet separation type check valve comprises a valve body, a piston and an end cover. The top of the end cover is connected with the bottom of the valve body. A water channel comprises a first water drainage hole and a second water drainage hole. A piston mounting hole and the water channel are arranged on the valve body. A third water drainage hole and a boss are arranged on the end cover. The upper end of the piston is located in the first water drainage hole and can block and seal a water inlet of the second water drainage hole. The lower end of the piston is located in the piston mounting hole and is in shaft shoulder limiting fit with the piston mounting hole. A spring is mounted between the lower end of the piston and the boss. By the adoption of the dry-wet separation type check valve for the hydraulic tunnel engineering, the problem that the service life of the check valve is affected due to the corrosion performance, silt blocking, soluble salt out and the like in the hydraulic tunnel engineering environment is solved, the water channel in the check valve is separated from a working mechanism in the check valve, the drying performance of the spring can be kept, and thus the operating durability of the check valve is enhanced.
Description
Technical field
The present invention relates to a kind of non-return valve for hydraulic tunnel engineering, a kind of water conservancy project tunnel
Hole engineering separating dry space from moist space formula non-return valve.
Background technology
In hydraulic tunnel engineering, in order to reduce the water pressure in country rock, in country rock, generally play draining
Hole drained, simultaneously in order to prevent the water in tunnel from entering in country rock body by osculum, just needs
Non-return valve to be installed in osculum and can only flow into tunnel from country rock to limit subsoil water, and can not be from
Tunnel flows in country rock body.
Although existing non-return valve has various structures form (such as lift non-return valve and swing type non-return valve
Deng), but the operating mechanism within existing non-return valve (making the mechanism of piston up-down) not with
Water in water stream channel separates.
Owing to the water in country rock is often mixed with corrosive salt and a large amount of silt, and in subsoil water, easily precipitation can
Dissolved salt, therefore when existing non-return valve is applied to hydraulic tunnel environment by people, existing non-return valve exists
Hydraulic tunnel environment works the phenomenons such as burn into blocking usually can occur, so that affecting non-return valve
In service life, non-return valve even can be made ineffective.If non-return valve is ineffective or cisco unity malfunction,
The water in country rock will be made normally not lead off, and then cause water pressure in country rock too high, cause enclosing
Rock ruptures, and this is by the stability of serious threat to tunnel.
Summary of the invention
The invention aims to overcome the weak point of background technology, and a kind of hydraulic tunnel is provided
Engineering separating dry space from moist space formula non-return valve.
To achieve these goals, the technical scheme is that hydraulic tunnel engineering separating dry space from moist space
Formula non-return valve, including valve body and piston, valve body is provided with the piston mounting holes being positioned at valve body lower end,
With the water stream channel that body top can be made to connect with body base, it is characterised in that: also include end cap,
End cap top is connected with body base, and described water stream channel includes the first draining being connected with body top
Hole, and the second row water hole connecting with first row water hole and being connected with body base, described end cap is pacified
Equipped with the 3rd osculum connected with described second row water hole, and it is positioned at the boss of piston mounting holes,
Described piston upper end is positioned at first row water hole and can block the water inlet in second row water hole, lives
Plug lower end be positioned at described piston mounting holes and with piston mounting holes formed the shaft shoulder spacing, piston and
The spring being positioned at piston mounting holes, described piston upper end and side, first row water hole are installed between boss
First sealing ring is installed between wall, is provided with second between piston and piston mounting holes sidewall close
Seal, is provided with the 3rd sealing ring between described boss and piston mounting holes sidewall.
In technique scheme, described first row water hole is arranged vertically, and first row water hole, work
Plug installing hole and boss are coaxially arranged.
In technique scheme, the diameter of described piston upper end is identical with the diameter in first row water hole,
The diameter of piston is identical with the diameter of piston mounting holes, and the diameter of boss is straight with piston mounting holes
Footpath is identical.
In technique scheme, described second row water hole includes the second transverse drainage hole and second vertical
Osculum, the second vertical drainage hole is arranged vertically, second one end, transverse drainage hole and first row water hole
Connection, the other end and the connection of the second vertical drainage hole, the 3rd osculum is coaxial with the second vertical drainage hole,
Second transverse drainage hole, the second vertical drainage hole are identical with the diameter of the 3rd osculum.
In technique scheme, described boss and end cap are integral type structure.
Present configuration advantages of simple, it is easy to manufacture, solve in hydraulic tunnel engineering environment due to corruption
Erosion property, silt blocking, soluble salt precipitation etc. affect a difficult problem for non-return valve durability, by non-return valve
Water stream channel separates with the operating mechanism within non-return valve, and can keep the drying property of spring, thus increases
The strong durability of non-return valve work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
11-the first sealing ring in figure, 12-the second sealing ring, 13-the 3rd sealing ring, 2-piston, 3-current
Passage, 41-first row water hole, 42-second row water hole, 421-the second transverse drainage hole, 422-second erects
To osculum, 43-the 3rd osculum, 5-end cap, 6-boss, 7-spring, 8-piston mounting holes, 9-valve
Body.
Detailed description of the invention
Describe the performance of the present invention below in conjunction with the accompanying drawings in detail, but they are not intended that the present invention
Restriction, the most for example.Make advantages of the present invention more clear by explanation simultaneously and easily manage
Solve.
Understand refering to accompanying drawing: hydraulic tunnel engineering separating dry space from moist space formula non-return valve, it is characterised in that: bag
Including valve body 9, piston 2 and end cap 5, end cap 5 top is connected bottom valve body 9, and valve body 9 is installed
There is the piston mounting holes 8 being positioned at valve body 9 lower end, and can make to connect bottom valve body 9 top and valve body 9
Water stream channel 3, described water stream channel 3 includes the first row water hole 41 being connected with valve body 9 top, and
Connect with first row water hole 41 and with the second row water hole 42 being connected bottom valve body 9, on described end cap 5
The 3rd osculum 43 connected with described second row water hole 42 is installed, and is positioned at piston mounting holes 8
Boss 6, described piston 2 upper end is positioned at first row water hole 41 can entering second row water hole 42
The mouth of a river blocks, piston 2 lower end be positioned at described piston mounting holes 8 and with piston mounting holes 8 shape
Become the shaft shoulder spacing, the spring 7 being positioned at piston mounting holes 8 be installed between piston 2 lower end and boss 6,
First sealing ring 11 is installed between described piston 2 upper end and first row water hole 41 sidewall), piston 2
Being provided with the second sealing ring 12 between lower end and piston mounting holes 8 sidewall, described boss 6 is pacified with piston
Between the sidewall of dress hole 8, the 3rd sealing ring 13 is installed.
Described first row water hole 41 is arranged vertically, and first row water hole 41, piston mounting holes 8 and convex
Platform 6 is in coaxially arranged.The diameter of described piston 2 upper end is identical with the diameter in first row water hole 41, lives
The diameter filling in 2 lower ends is identical with the diameter of piston mounting holes 8, the diameter of boss 6 and piston mounting holes 8
Diameter identical.
Described second row water hole 42 includes the second transverse drainage hole 421 and the second vertical drainage hole 422,
Second vertical drainage hole 422 is arranged vertically, second one end, transverse drainage hole 421 and first row water hole
41 connect, and the other end and the second vertical drainage hole 422 connect, and the 3rd osculum 43 is vertically arranged with second
Water hole 422 is coaxial, the 421, second vertical drainage hole, the second transverse drainage hole 422 and the 3rd osculum
The diameter of 43 is identical.
Preferably, described boss 6 and end cap 5 are integral type structure.
The separating dry space from moist space method of the present invention includes following construction procedure,
Step 1: when there being current in first row water hole 41, and the pressure of piston 2 upper end is more than by current
When spring 7 is to the thrust of piston 2 bottom, piston 2 moves down under the effect of the pressure；
Step 2: when piston 2 is moved downward to below the second transverse drainage hole, first row water hole 41
Connecting with second row water hole 42, now water stream channel 3 is in connected state, in first row water hole 41
Current can be flowed into valve body 9 bottom from valve body 9 top, thus realize the drain function of non-return valve；
Step 3: the current in not having current, or first row water hole 41 in first row water hole 41 are to work
Fill in the pressure of 2 upper ends less than spring 7 to the thrust of piston 2 bottom time, piston 2 is in the effect of thrust
Under move up；
Step 4: when above piston 2 is moved upward to the second transverse drainage hole 421, piston 2 upper end
Being blocked by the water inlet in second row water hole 42, now water stream channel 3 is in closed state, the 3rd draining
Current or the current of end cap 5 lower end in hole 43 can not be flowed into valve body 9 top from valve body 9 bottom,
Thus realize the one-way flow function of non-return valve.
Owing to water stream channel 3 separates with spring 7, thus the corrosive substance contained in water, silt and
The soluble-salt etc. separated out will not contact with spring 7, it is possible to ensures that spring 7 is not corroded or blocks,
Thus improve the service life of non-return valve.
Other unaccounted part belongs to prior art.
Claims (6)
1. hydraulic tunnel engineering separating dry space from moist space formula non-return valve, including valve body (9) and piston (2), valve body (9)
On the piston mounting holes (8) being positioned at valve body (9) lower end is installed, and valve body (9) top and valve body (9) can be made
The water stream channel (3) of bottom connection, it is characterised in that: also include end cap (5), end cap (5) top and valve
Body (9) bottom connects, and described water stream channel (3) includes the first row water hole being connected with valve body (9) top
(41), and the second row water hole (42) connecting with first row water hole (41) and being connected with valve body (9) bottom,
The 3rd osculum (43) connected with described second row water hole (42), and position are installed on described end cap (5)
Boss (6) in piston mounting holes (8), described piston (2) upper end is positioned at first row water hole (41) also
Can block the water inlet of second row water hole (42), piston (2) lower end is positioned at described piston mounting holes
(8) interior and spacing with piston mounting holes (8) the formation shaft shoulder, install between piston (2) lower end and boss (6)
There are the spring (7) being positioned at piston mounting holes (8), described piston (2) upper end and first row water hole (41) side
First sealing ring (11) is installed between wall, pacifies between piston (2) lower end and piston mounting holes (8) sidewall
Equipped with the second sealing ring (12), between described boss (6) and piston mounting holes (8) sidewall, it is provided with the 3rd
Sealing ring (13).
Hydraulic tunnel engineering separating dry space from moist space formula non-return valve the most according to claim 1, its feature
It is: described first row water hole (41) is arranged vertically, and first row water hole (41), piston mounting holes (8)
With boss (6) in coaxially arranged.
Hydraulic tunnel engineering separating dry space from moist space formula non-return valve the most according to claim 2, its feature
It is: the diameter of described piston (2) upper end is identical with the diameter of first row water hole (41), under piston (2)
The diameter of end is identical with the diameter of piston mounting holes (8), the diameter of boss (6) and piston mounting holes (8)
Diameter is identical.
4. according to the hydraulic tunnel engineering dry and wet described in claim any one of claims 1 to 3
Separate type non-return valve, it is characterised in that: described second row water hole (42) includes the second transverse drainage hole (421)
With the second vertical drainage hole (422), the second vertical drainage hole (422) is arranged vertically, and second laterally arranges
Water hole (421) one end connects with first row water hole (41), and the other end and the second vertical drainage hole (422) are even
Logical, the 3rd osculum (43) is coaxial with the second vertical drainage hole (422), the second transverse drainage hole (421),
Second vertical drainage hole (422) is identical with the diameter of the 3rd osculum (43).
Hydraulic tunnel engineering separating dry space from moist space formula non-return valve the most according to claim 4, its feature
It is: described boss (6) and end cap (5) are integral type structure.
6. according to the hydraulic tunnel engineering dry and wet described in claim any one of claims 1 to 3
Separate type non-return valve, it is characterised in that: described boss (6) and end cap (5) they are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303904.0A CN105840888A (en) | 2016-05-10 | 2016-05-10 | Dry-wet separation type check valve for hydraulic tunnel engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303904.0A CN105840888A (en) | 2016-05-10 | 2016-05-10 | Dry-wet separation type check valve for hydraulic tunnel engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840888A true CN105840888A (en) | 2016-08-10 |
Family
ID=56591599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610303904.0A Pending CN105840888A (en) | 2016-05-10 | 2016-05-10 | Dry-wet separation type check valve for hydraulic tunnel engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365070A (en) * | 2020-03-30 | 2020-07-03 | 中铁二院工程集团有限责任公司 | Tunnel drain pipe crystallization prevention system and prevention method |
| CN111825182A (en) * | 2020-07-20 | 2020-10-27 | 中铁五局集团第一工程有限责任公司 | Tunnel drainage method |
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| US6322051B1 (en) * | 2000-01-03 | 2001-11-27 | Automatic Bar Controls, Inc. | Elastomeric molded valve stem and spring hat |
| CN202228735U (en) * | 2011-09-14 | 2012-05-23 | 无锡市东方液压件制造有限公司 | Leak-proof one-way valve |
| CN104075002A (en) * | 2014-06-30 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Adjustable ultrahigh pressure check valve |
| CN104373641A (en) * | 2014-11-27 | 2015-02-25 | 浙江新昌三瑞香雪冲业有限公司 | Check valve |
| US20150059884A1 (en) * | 2013-09-03 | 2015-03-05 | John R. Grenaway | Relief Valve With Directable Outlet |
| CN204756030U (en) * | 2015-05-19 | 2015-11-11 | 浙江力泰新能源科技有限公司 | One -way valve |
| CN205745474U (en) * | 2016-05-10 | 2016-11-30 | 中国科学院武汉岩土力学研究所 | Hydraulic tunnel engineering separating dry space from moist space formula non-return valve |
-
2016
- 2016-05-10 CN CN201610303904.0A patent/CN105840888A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322051B1 (en) * | 2000-01-03 | 2001-11-27 | Automatic Bar Controls, Inc. | Elastomeric molded valve stem and spring hat |
| CN202228735U (en) * | 2011-09-14 | 2012-05-23 | 无锡市东方液压件制造有限公司 | Leak-proof one-way valve |
| US20150059884A1 (en) * | 2013-09-03 | 2015-03-05 | John R. Grenaway | Relief Valve With Directable Outlet |
| CN104075002A (en) * | 2014-06-30 | 2014-10-01 | 无锡市威海达机械制造有限公司 | Adjustable ultrahigh pressure check valve |
| CN104373641A (en) * | 2014-11-27 | 2015-02-25 | 浙江新昌三瑞香雪冲业有限公司 | Check valve |
| CN204756030U (en) * | 2015-05-19 | 2015-11-11 | 浙江力泰新能源科技有限公司 | One -way valve |
| CN205745474U (en) * | 2016-05-10 | 2016-11-30 | 中国科学院武汉岩土力学研究所 | Hydraulic tunnel engineering separating dry space from moist space formula non-return valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365070A (en) * | 2020-03-30 | 2020-07-03 | 中铁二院工程集团有限责任公司 | Tunnel drain pipe crystallization prevention system and prevention method |
| CN111365070B (en) * | 2020-03-30 | 2024-04-19 | 中铁二院工程集团有限责任公司 | Tunnel drain pipe crystallization prevention and control system and prevention and control method |
| CN111825182A (en) * | 2020-07-20 | 2020-10-27 | 中铁五局集团第一工程有限责任公司 | Tunnel drainage method |
| CN111825182B (en) * | 2020-07-20 | 2022-03-25 | 中铁五局集团第一工程有限责任公司 | Tunnel drainage method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |