CN105805366A - Dry-wet separation method of dry-wet separation check valve for adjustable hydraulic tunnel engineering - Google Patents
Dry-wet separation method of dry-wet separation check valve for adjustable hydraulic tunnel engineering Download PDFInfo
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- CN105805366A CN105805366A CN201610361920.5A CN201610361920A CN105805366A CN 105805366 A CN105805366 A CN 105805366A CN 201610361920 A CN201610361920 A CN 201610361920A CN 105805366 A CN105805366 A CN 105805366A
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- sleeve cap
- spring
- return valve
- water hole
- row water
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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)
- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a dry-wet separation method of a dry-wet separation check valve for adjustable hydraulic tunnel engineering, and relates to a method for drainage in a surrounding rock by a check valve. The method comprises the step of: checking if the opening pressure of the check valve is located at a proper value; increasing the thrust of a spring to a sleeve cap if the opening pressure of the check valve is too low; reducing the thrust of the spring to the sleeve cap if the opening pressure of the check valve is too high; downwards moving the sleeve cap under the pressure effect to realize a drainage function of the check valve when the pressure of water currents to the sleeve cap is higher than the thrust of the spring to the sleeve cap after the check valve is put in a hydraulic tunnel; and locating a first drainage hole in a closing state and having no water current in a first cavity when the pressure of the water currents to the sleeve cap is lower than the thrust of the spring to the sleeve cap, and at this time, a dry-wet separation function of the check valve is realized. The method solves the difficulty of influence on durability of the check valve by corrosion, sediment blockage, separation of soluble salt in the hydraulic tunnel engineering environment.
Description
Technical field
The present invention relates to a kind of method that non-return valve carries out draining in country rock, specifically a kind of separating dry space from moist space method of adjustable hydraulic tunnel 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, typically require in country rock, beat osculum drained, simultaneously in order to prevent the water in tunnel from entering in country rock body by osculum, it is accomplished by osculum non-return valve is installed to flow into tunnel from country rock to limit subsoil water, and can not flow into country rock body from tunnel.
Although existing non-return valve has various structures form (such as lift non-return valve and swing type non-return valve etc.), but the operating mechanism within existing non-return valve does not separate with the water in water stream channel, so that the operating mechanism within non-return valve directly contacts with the water in water stream channel.But corrosive salt and a large amount of silt often it is mixed with due to the water in country rock; and subsoil water easily precipitates out soluble salt; therefore when existing non-return valve is applied to hydraulic tunnel environment by people; existing non-return valve works in hydraulic tunnel environment and the phenomenons such as burn into blocking usually can occur; so that affecting the service life of non-return valve, non-return valve even can be made ineffective.If non-return valve is ineffective or cisco unity malfunction, it will make the water in country rock normally not lead off, and then causing water pressure in country rock too high, cause that country rock breaks, 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 separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve is provided.
To achieve these goals, the technical scheme is that the separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve, it is characterized in that: it includes following construction procedure, step one: after assembling non-return valve, checking whether the unlatching pressure of non-return valve is in desired value, if the unlatching pressure of non-return valve is too small, then twisting adjusting screw rod makes spring base move up in sleeve, thus increasing the elastic force of spring, and then increase the spring thrust to sleeve cap；If the unlatching pressure of non-return valve is excessive, then twisting adjusting screw rod makes spring base move down in sleeve, thus reducing the elastic force of spring, and then reduces the spring thrust to sleeve cap；Step 2: non-return valve is put into after in hydraulic tunnel, when having current in first row water hole, and current to the pressure of sleeve cap more than spring to the thrust of sleeve cap time, sleeve cap moves down under the effect of the pressure, now sleeve cap top separates with body top, is in connected state between first row water hole and second row water hole, and current can flow through first row water hole, the first cavity and second row water hole successively, and can flow out in second row water hole, now realize the drain function of non-return valve；Step 3: non-return valve is put into after in hydraulic tunnel, when there is no current in first row water hole, or current to the pressure of sleeve cap less than spring to the thrust of sleeve cap time, sleeve cap is in contact condition with body top all the time in the effect of thrust, now first row water hole is in closed state, the current of body top cannot flow in the first cavity, simultaneously, second row water hole is blocked owing to sealing lid, current bottom valve gap can not be flowed in the first cavity, now there is no current in the first cavity, namely now realize the separating dry space from moist space function of non-return valve.
The present invention with existing for compared with the non-return valve of hydraulic tunnel engineering, having the advantage that
1, present configuration advantages of simple, easily fabricated, solve in hydraulic tunnel engineering environment owing to corrosivity, silt blocking, soluble salt precipitation etc. affect a difficult problem for non-return valve durability, water stream channel (the current current through line that first row water hole, the first cavity and second row water hole are formed) in non-return valve is separated with the operating mechanism's (structure that spring, sleeve and sleeve cap combine) within non-return valve, and the drying property of spring can be kept, thus enhance the durability of non-return valve work.
2, place the spring in the confined space formed between sleeve and sleeve cap, make spring separate with crossing aquaporin, the entrance of the foreign material such as water and silt can be prevented, keep the dry of the second cavity inside, add the durability of non-return valve.
3, the spring thrust to sleeve cap is regulated owing to the present invention can pass through adjusting screw rod, therefore the present invention can allow staff's water pressure size within various location country rock, and the suitable unlatching pressure regulating non-return valve, thus improve the suitability of single non-return valve.
4, owing to the first row water hole on valve body is angling hole, therefore when the current in country rock enter the first cavity, the cavity of valve body can be washed away by current such that it is able to reduces gathering of valve inner silt.
5, sealing lid can make the present invention realize one-way flow function, current can only be flowed into bottom valve gap from the first cavity, and the first cavity can not be flowed into bottom valve gap, such that it is able to keep the dry of the first cavity inside, it is possible to prevent the sealing ring between sleeve cap and sleeve due to ineffective by water soaking for a long time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
1-valve body in figure, 2-sleeve cap, 3-spring, 4-sleeve, 5-spring base, 6-valve gap, 7-seals lid, 8-adjusting screw rod, 9-first row water hole, 10-second row water hole, 11-the first cavity, 12-the second cavity, 13-the first sealing ring, 14-the second sealing ring, 15-the 3rd sealing ring, 16-boss, 17-the 4th sealing ring.
Detailed description of the invention
Describe the performance of the present invention below in conjunction with accompanying drawing in detail, but they are not intended that limitation of the invention, only for example.Make advantages of the present invention clearly with easy to understand by explanation simultaneously.
Accompanying drawings is known: the separating dry space from moist space method of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve includes following construction procedure,
Step one: after assembling non-return valve, checking whether the unlatching pressure of non-return valve is in desired value, if the unlatching pressure of non-return valve is too small, then twisting adjusting screw rod 8 makes spring base 5 move up in sleeve 4, thus increasing the elastic force of spring 3, and then increase the spring 3 thrust to sleeve cap 2；If the unlatching pressure of non-return valve is excessive, then twisting adjusting screw rod 8 makes spring base 5 move down in sleeve 4, thus reducing the elastic force of spring 3, and then reduces the spring 3 thrust to sleeve cap 2；
Step 2: non-return valve is put into after in hydraulic tunnel, when having current in first row water hole 9, and current to the pressure of sleeve cap 2 more than spring 3 to the thrust of sleeve cap 2 time, sleeve cap 2 moves down under the effect of the pressure, now sleeve cap 2 top separates with valve body 1 top, it is in connected state between first row water hole 9 and second row water hole 10, current can flow through first row water hole the 9, first cavity 11 and second row water hole 10 successively, and can flow out in second row water hole 10, now realize the drain function of non-return valve；
Step 3: non-return valve is put into after in hydraulic tunnel, when there is no current in first row water hole 9, or current to the pressure of sleeve cap 2 less than spring 3 to the thrust of sleeve cap 2 time, sleeve cap 2 is in contact condition with valve body 1 top all the time in the effect of thrust, now first row water hole 9 is in closed state, the current at valve body 1 top cannot flow in the first cavity 11, simultaneously, second row water hole 10 is blocked owing to sealing lid 7, current bottom valve gap 6 can not be flowed in the first cavity 11, now there is no current in the first cavity 11, namely the separating dry space from moist space function of non-return valve is now realized.
If the present invention is not provided with sealing lid 7, when then having water bottom valve gap 6, even if water can not be flowed in the first cavity by second row water hole 10, now also will be filled with water in the first cavity of valve body 1, this sealing that will affect between sleeve cap 2 and sleeve 4, spring 3 can be made to contact with water, thus affecting the service life of the present invention.
As shown in Figure 1, the structure of adjustable hydraulic tunnel engineering separating dry space from moist space non-return valve is as follows: it includes spring 3, top is provided with the valve body 1 in first row water hole 9, and the valve gap 6 being connected with valve body 1 lower end, it is characterized in that: also include the sleeve cap 2 that described first row water hole 9 can be blocked, it is installed on the sleeve 4 of valve gap 6 upper end and the spring base 5 being arranged in sleeve 4；Being provided with first cavity 11 that Open Side Down in described valve body 1, be provided with second cavity 12 that Open Side Down in sleeve cap 2, sleeve 4 and sleeve cap 2 are respectively positioned in described first cavity 11；Valve gap 6 is provided with some second row water holes 10, is equipped with and is installed on valve gap 6 bottom below each second row water hole 10, and the sealing lid 7 that can second row water hole 10 be sealed；Sleeve cap 2 upper end is corresponding with the position in described first row water hole 9, and sleeve cap 2 lower end is enclosed within sleeve 4；Spring 3 upper end is positioned at sleeve cap 2 and is connected with sleeve cap 2 top, and spring 3 lower end is positioned at sleeve 4 and is connected with spring base 5；It is provided with the first sealing ring 13 between described sleeve 4 and sleeve cap 2, is provided with the second sealing ring 14 between spring base 5 and sleeve 4, between sleeve 4 and valve gap valve gap 6, is provided with the 4th sealing ring 17.
Also include adjusting screw rod 8, the contact internal walls of spring base 5 and sleeve 4 also can slide in sleeve 4, described adjusting screw rod 8 one end and spring base 5 base contact, the other end is threadeded with valve gap 6 and runs through valve gap 6, is provided with the 3rd sealing ring 15 between described adjusting screw rod 8 and valve gap 6.
The inclined layout in described first row water hole 9, the angle between centrage and the horizontal plane in first row water hole 9 is 55～85 °.
Due to separating of water stream channel (the current current through line that first row water hole, the first cavity and second row water hole are formed) and spring 3, therefore the soluble-salt etc. of the corrosive substance contained in water, silt and precipitation will not contact with spring 3, ensure that spring 3 is not corroded or blocks, and then improve the durability of the present invention.
Other unaccounted part belongs to 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 following construction procedure,
Step one: after assembling non-return valve, check whether the unlatching pressure of non-return valve is in desired value, if the unlatching pressure of non-return valve is too small, then twisting adjusting screw rod (8) makes spring base (5) move up in sleeve (4), thus increasing the elastic force of spring (3), and then increase the spring (3) thrust to sleeve cap (2)；If the unlatching pressure of non-return valve is excessive, then twisting adjusting screw rod (8) makes spring base (5) move down in sleeve (4), thus reducing the elastic force of spring (3), and then reduce the spring (3) thrust to sleeve cap (2)；
Step 2: non-return valve is put into after in hydraulic tunnel, when having current in first row water hole (9), and current to the pressure of sleeve cap (2) more than spring (3) to the thrust of sleeve cap (2) time, sleeve cap (2) moves down under the effect of the pressure, now sleeve cap (2) top separates with valve body (1) top, it is in connected state between first row water hole (9) and second row water hole (10), current can flow through first row water hole (9) successively, first cavity (11) and second row water hole (10), and can flow out in second row water hole (10), now realize the drain function of non-return valve；
Step 3: non-return valve is put into after in hydraulic tunnel, when there is no current in first row water hole (9), or current to the pressure of sleeve cap (2) less than spring (3) to the thrust of sleeve cap (2) time, sleeve cap (2) is in contact condition with valve body (1) top all the time in the effect of thrust, now first row water hole (9) are in closed state, the current at valve body (1) top cannot flow in the first cavity (11), simultaneously, second row water hole (10) are blocked owing to sealing lid (7), the current of valve gap (6) bottom can not be flowed in the first cavity (11), now there is no current in the first cavity (11), namely the separating dry space from moist space function of non-return valve is now realized.
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 |
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| 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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| CN105805366A true CN105805366A (en) | 2016-07-27 |
| CN105805366B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
-
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN105805366B (en) | 2018-05-08 |
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