CN105805366B - The separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve - Google Patents
The separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve Download PDFInfo
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- CN105805366B CN105805366B CN201610361920.5A CN201610361920A CN105805366B CN 105805366 B CN105805366 B CN 105805366B CN 201610361920 A CN201610361920 A CN 201610361920A CN 105805366 B CN105805366 B CN 105805366B
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- sleeve
- return valve
- spring
- osculum
- sleeve cap
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- 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
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
- F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve, is related to a kind of method that non-return valve carries out draining in country rock.It includes checking whether the Opening pressure of non-return valve is in desired value, if the Opening pressure of non-return valve is too small, thrust of the increase spring to sleeve cap；If the Opening pressure of non-return valve is excessive, reduce thrust of the spring to sleeve cap；After non-return valve is put into hydraulic tunnel, when current are more than the pressure of sleeve cap on spring to the thrust of sleeve cap, sleeve cap moves down under the effect of the pressure, realizes the drain function of non-return valve at this time；When current are less than the pressure of sleeve cap on spring to the thrust of sleeve cap, the first osculum is in closed state, does not have current in the first cavity, realizes the separating dry space from moist space function of non-return valve at this time.The present invention is solved in hydraulic tunnel engineering environment due to corrosivity, silt blocks, solvable the problem for influencing non-return valve durability such as salts out.
Description
Technical field
A kind of method for carrying out draining in country rock the present invention relates to non-return valve, specifically a kind of adjustable water conservancy project tunnel
The separating dry space from moist space method of hole engineering separating dry space from moist space non-return valve.
Background technology
In hydraulic tunnel engineering, in order to reduce the water pressure in country rock, it usually needs play osculum drainage in country rock
Underground water, while the water in tunnel is entered in country rock body by osculum in order to prevent, it is necessary to check is installed in osculum
Valve can only flow into tunnel to limit underground water from country rock, and cannot be flowed into from tunnel in country rock body.
It is existing although existing non-return valve has multiple structural forms (such as lift non-return valve and swing type non-return valve)
There is the operating mechanism inside non-return valve not separated with the water in water stream channel, so that the operating mechanism inside non-return valve is straight
Connect and contacted with the water in water stream channel.But since the water in country rock is often mixed with corrosive salt and a large amount of silts, and underground water
In easily separate out soluble salt, therefore when existing non-return valve is applied to hydraulic tunnel environment by people, existing non-return valve is in water conservancy project
Phenomena such as burn into blocks can usually be occurred by working in environment in tunnel, so that influencing the service life of non-return valve, or even can be made inverse
Only valve is ineffective.If non-return valve is ineffective or cisco unity malfunction, it will prevent the water in country rock is from normally leading off, into
And cause water pressure in country rock excessive, cause country rock to rupture, this is by the stability of serious threat to tunnel.
The content of the invention
The purpose of the invention is to overcome the shortcoming of background technology, and provide a kind of adjustable hydraulic tunnel engineering
With the separating dry space from moist space method of separating dry space from moist space non-return valve.
To achieve these goals, the technical scheme is that：Adjustable hydraulic tunnel engineering separating dry space from moist space check
The separating dry space from moist space method of valve, it is characterised in that：It includes following construction procedure, step 1：After non-return valve is assembled, check inverse
Only whether the Opening pressure of valve is in desired value, if the Opening pressure of non-return valve is too small, twisting adjusting screw rod makes spring base exist
Moved up in sleeve, so as to increase the elastic force of spring, and then increase thrust of the spring to sleeve cap；If the unlatching pressure of non-return valve
Power is excessive, then twisting adjusting screw rod makes spring base be moved down in sleeve, so as to reduce the elastic force of spring, and then reduces spring
To the thrust of sleeve cap；Step 2：After non-return valve is put into hydraulic tunnel, when having current, and water in the first osculum
Flow when being more than spring to the pressure of sleeve cap to the thrust of sleeve cap, sleeve cap moves down under the effect of the pressure, covers at this time
Cylinder crown portion is separated with body top, connected state is between the first osculum and the second osculum, current can flow successively
It through the first osculum, the first cavity and the second osculum, and can be flowed out out of second osculum, realize the draining of non-return valve at this time
Function；Step 3：After non-return valve is put into hydraulic tunnel, when there is no current, or current in the first osculum to sleeve
When the pressure of cap is less than spring to the thrust of sleeve cap, sleeve cap is in body top and contacts shape all the time in the effect of thrust
State, at this time the first osculum be in closed state, the current of body top cannot flow into the first cavity, simultaneously as close
Capping blocks the second osculum, and the current of valve deck bottom can not be flowed into the first cavity, not have at this time in the first cavity
There are current, i.e., realize the separating dry space from moist space function of non-return valve at this time.
It is of the invention with it is existing for the non-return valve of hydraulic tunnel engineering compared with, have the following advantages that：
1st, the configuration of the present invention is simple is reasonable, easily fabricated, solves in hydraulic tunnel engineering environment due to corrosivity, silt
Block, it is solvable the problem for influencing non-return valve durability such as salt out, by water stream channel (the first osculum, first in non-return valve
The current current through line that cavity and the second osculum are formed) with non-return valve inside operating mechanism (spring, sleeve and sleeve cap
The structure being composed) separation, and the drying property of spring can be kept, so as to enhance the durability of non-return valve work.
2nd, place the spring in the confined space formed between sleeve and sleeve cap, spring is separated with water passage, energy
Prevent the entrance of the debris such as water and silt, keep the drying of the second cavity inside, add the durability of non-return valve.
3rd, since the present invention can adjust spring to the thrust of sleeve cap by adjusting screw rod, therefore the present invention can allow work people
Member is according to the water pressure size inside country rock at diverse location, and the Opening pressure of appropriate adjusting non-return valve, so as to improve
The applicability of single non-return valve.
4th, since the first osculum on valve body is angling hole, therefore when the current in country rock enter the first cavity, current
The cavity of valve body can be washed away, so as to reduce the accumulation of valve inner silt.
5th, sealing cover can make the present invention realize one-way flow function, and current can only be flowed into valve deck bottom from the first cavity
Portion, and the first cavity cannot be flowed into from valve deck bottom, so as to keep the drying of the first cavity inside, it can prevent sleeve
Sealing ring between cap and sleeve is due to ineffective by water immersion for a long time.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
1- valve bodies in figure, 2- sleeve caps, 3- springs, 4- sleeves, 5- spring bases, 6- valve decks, 7- sealing covers, 8- adjust spiral shell
Bar, the first osculums of 9-, the second osculums of 10-, the first cavitys of 11-, the second cavitys of 12-, the first sealing rings of 13-, 14- second are close
Seal, the 3rd sealing rings of 15-, 16- boss, the 4th sealing rings of 17-.
Embodiment
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they do not form limitation of the invention, only
It is for example.Make advantages of the present invention more clear by explanation at the same time and be readily appreciated that.
Understood refering to attached drawing：The adjustable hydraulic tunnel engineering separating dry space from moist space method of separating dry space from moist space non-return valve includes as follows
Construction procedure,
Step 1：After non-return valve is assembled, check whether the Opening pressure of non-return valve is in desired value, if non-return valve
Opening pressure is too small, then twisting adjusting screw rod 8 makes spring base 5 be moved up in sleeve 4, so that increase the elastic force of spring 3, into
And increase thrust of the spring 3 to sleeve cap 2；If the Opening pressure of non-return valve is excessive, twisting adjusting screw rod 8 makes spring base 5 exist
Moved down in sleeve 4, so as to reduce the elastic force of spring 3, and then reduce thrust of the spring 3 to sleeve cap 2；
Step 2：After non-return valve is put into hydraulic tunnel, when there is current in the first osculum 9, and current are to set
When the pressure of cylinder cap 2 is more than spring 3 to the thrust of sleeve cap 2, sleeve cap 2 moves down under the effect of the pressure, at this time sleeve
The top of cap 2 is separated with the top of valve body 1, connected state is between the first osculum 9 and the second osculum 10, current can be successively
The first osculum 9, the first cavity 11 and the second osculum 10 are flowed through, and can be flowed out out of second osculum 10, is realized at this time inverse
The only drain function of valve；
Step 3：After non-return valve is put into hydraulic tunnel, when there is no current, or current pair in the first osculum 9
When the pressure of sleeve cap 2 is less than spring 3 to the thrust of sleeve cap 2, sleeve cap 2 thrust effect all the time with 1 top of valve body at
In contact condition, the first osculum 9 is in closed state at this time, and the current at the top of valve body 1 cannot flow into the first cavity 11,
Simultaneously as sealing cover 7 blocks the second osculum 10, the current of 6 bottom of valve deck can not be flowed into the first cavity 11,
There is no current in the first cavity 11 at this time, i.e., realize the separating dry space from moist space function of non-return valve at this time.
If the present invention is not provided with sealing cover 7, when water is arranged at 6 bottom of valve deck, even if water cannot be by the second osculum 10
It is flowed into the first cavity, also will be filled with water in the first cavity of valve body 1 at this time, this will be influenced between sleeve cap 2 and sleeve 4
Leakproofness, can be such that spring 3 is contacted with water, so as to influence the service life of the present invention.
As shown in Figure 1, adjustable hydraulic tunnel engineering is as follows with the structure of separating dry space from moist space non-return valve：It includes spring 3, top
Portion is equipped with the valve body 1 of the first osculum 9, and the valve deck 6 being connected with 1 lower end of valve body, it is characterised in that：Further including can be to described
The sleeve cap 2 that one osculum 9 is blocked, is installed on the sleeve 4 of 6 upper end of valve deck, and the spring base 5 in sleeve 4；Institute
State and first cavity 11 that Open Side Down be equipped with valve body 1, second cavity 12 that Open Side Down is equipped with sleeve cap 2,
Sleeve 4 and sleeve cap 2 are respectively positioned in first cavity 11；Valve deck 6 is equipped with some second osculums 10, each second draining
The lower section of hole 10, which is equipped with, is installed on 6 bottom of valve deck, and the sealing cover 7 that can be sealed to the second osculum 10；2 upper end of sleeve cap
With the position correspondence of first osculum 9,2 lower end of sleeve cap is sleeved on sleeve 4；3 upper end of spring be located in sleeve cap 2 and with
The connection of the top of sleeve cap 2,3 lower end of spring are located in sleeve 4 and are connected with spring base 5；Set between the sleeve 4 and sleeve cap 2
There is the first sealing ring 13, the second sealing ring 14 is equipped between spring base 5 and sleeve 4, the is equipped between sleeve 4 and valve deck valve deck 6
Four sealing rings 17.
Adjusting screw rod 8 is further included, spring base 5 is contacted with the inner wall of sleeve 4 and can slided in sleeve 4, the adjusting spiral shell
8 one end of bar is contacted with 5 bottom of spring base, and the other end is threadedly coupled with valve deck 6 and runs through valve deck 6, the adjusting screw rod 8 and valve deck
The 3rd sealing ring 15 is equipped between 6.
First osculum, the 9 inclined arrangement, the angle between the center line and horizontal plane of the first osculum 9 is 55~
85°。
By water stream channel (the current current through line that the first osculum, the first cavity and the second osculum are formed) and bullet
The separation of spring 3, therefore soluble-salt of corrosive substance, silt and precipitation contained in water etc. will not be in contact with spring 3, can
Ensure that spring 3 is not corroded or blocks, and then improve the durability of the present invention.
Other unaccounted parts belong to the prior art.
Claims (1)
1. the separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve, it is characterised in that：It includes as follows
Construction procedure,
Step 1：After non-return valve is assembled, check whether the Opening pressure of non-return valve is in desired value, if the unlatching of non-return valve
Pressure is too small, then twisting adjusting screw rod (8) makes spring base (5) be moved up in sleeve (4), so as to increase the bullet of spring (3)
Power, and then increase thrust of the spring (3) to sleeve cap (2)；If the Opening pressure of non-return valve is excessive, adjusting screw rod (8) is twisted
Spring base (5) is moved down in sleeve (4), so as to reduce the elastic force of spring (3), and then reduce spring (3) to sleeve cap
(2) thrust；
Step 2：After non-return valve is put into hydraulic tunnel, there are current when the first osculum (9) is interior, and current are to sleeve
When the pressure of cap (2) is more than spring (3) to the thrust of sleeve cap (2), sleeve cap (2) moves down under the effect of the pressure, this
When sleeve cap (2) at the top of separated with valve body (1) top, connected state is between the first osculum (9) and the second osculum (10)
State, current can be followed by the first osculum (9), the first cavity (11) and the second osculums (10), and can be from the second draining
Outflow in hole (10), realizes the drain function of non-return valve at this time；
Step 3：After non-return valve is put into hydraulic tunnel, when not having current in the first osculum (9), or current are to set
When the pressure of cylinder cap (2) is less than spring (3) to the thrust of sleeve cap (2), sleeve cap (2) thrust effect all the time with valve body
(1) top is in contact condition, and the first osculum (9) is in closed state at this time, and the current at the top of valve body (1) cannot flow into
In first cavity (11), simultaneously as sealing cover (7) blocks the second osculum (10), the current of valve deck (6) bottom are not yet
It can be flowed into the first cavity (11), there is no current in the first cavity (11) at this time, i.e., realize the separating dry space from moist space of non-return valve at this time
Function；
The structure of the non-return valve is as follows：It includes spring (3), and top is equipped with the valve body (1) of the first osculum (9), and and valve
The valve deck (6) of body (1) lower end connection, the sleeve cap (2) that can be blocked to first osculum (9), is installed on valve deck (6)
The sleeve (4) of upper end, and the spring base (5) in sleeve (4)；The for being equipped with one in the valve body (1) Open Side Down
One cavity (11), sleeve cap (2) is interior to be equipped with second cavity (12) that Open Side Down, and sleeve (4) and sleeve cap (2) are respectively positioned on
In first cavity (11)；Valve deck (6) is equipped with some second osculums (10), is all provided with below each second osculum (10)
It is installed on valve deck (6) bottom, and the sealing cover (7) that can be sealed to the second osculum (10)；Sleeve cap (2) upper end and institute
The position correspondence of the first osculum (9) is stated, sleeve cap (2) lower end is sleeved on sleeve (4)；Spring (3) upper end is located at sleeve cap (2)
Interior and be connected at the top of sleeve cap (2), it is interior and be connected with spring base (5) that spring (3) lower end is located at sleeve (4)；The sleeve (4)
The first sealing ring (13) is equipped between sleeve cap (2), the second sealing ring (14) is equipped between spring base (5) and sleeve (4), is covered
The 4th sealing ring (17) is equipped between cylinder (4) and valve deck valve deck (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361920.5A CN105805366B (en) | 2016-05-27 | 2016-05-27 | The separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361920.5A CN105805366B (en) | 2016-05-27 | 2016-05-27 | The separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve |
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| Publication Number | Publication Date |
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| CN105805366A CN105805366A (en) | 2016-07-27 |
| CN105805366B true CN105805366B (en) | 2018-05-08 |
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| CN201610361920.5A Active CN105805366B (en) | 2016-05-27 | 2016-05-27 | The separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110607665A (en) * | 2018-06-15 | 2019-12-24 | 青岛海尔滚筒洗衣机有限公司 | Washing machine's overflow device and washing machine |
| CN113863462A (en) * | 2021-09-09 | 2021-12-31 | 大连船舶重工集团有限公司 | Drainage device with backstop suitable for nuclear power station and design method thereof |
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|---|---|---|---|---|
| US3995658A (en) * | 1974-06-12 | 1976-12-07 | Societe Des Clapets T.J., Socla | Non-return valve |
| DE2650934A1 (en) * | 1976-11-08 | 1978-05-11 | Waletzko Alfred Apparatebau | Back flow preventer between drinking and washing water pipework - has guide rings fitted between valve and guide rod |
| CN101737535A (en) * | 2009-12-31 | 2010-06-16 | 广东联塑科技实业有限公司 | Simple and durable mute check valve |
| CN201756040U (en) * | 2010-06-25 | 2011-03-09 | 阳江市飞轮金属制品有限公司 | Inserting rod bearing movable castor |
| CN204533684U (en) * | 2015-03-27 | 2015-08-05 | 江西中烟工业有限责任公司广丰卷烟厂 | A kind of anti-medium refluence Lift 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 |
-
2016
- 2016-05-27 CN CN201610361920.5A patent/CN105805366B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995658A (en) * | 1974-06-12 | 1976-12-07 | Societe Des Clapets T.J., Socla | Non-return valve |
| DE2650934A1 (en) * | 1976-11-08 | 1978-05-11 | Waletzko Alfred Apparatebau | Back flow preventer between drinking and washing water pipework - has guide rings fitted between valve and guide rod |
| CN101737535A (en) * | 2009-12-31 | 2010-06-16 | 广东联塑科技实业有限公司 | Simple and durable mute check valve |
| CN201756040U (en) * | 2010-06-25 | 2011-03-09 | 阳江市飞轮金属制品有限公司 | Inserting rod bearing movable castor |
| CN204533684U (en) * | 2015-03-27 | 2015-08-05 | 江西中烟工业有限责任公司广丰卷烟厂 | A kind of anti-medium refluence Lift 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 |
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| CN105805366A (en) | 2016-07-27 |
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