CN204828918U - Rearmounted regulation type divides drill way combined type waterproof hammer air valve valves - Google Patents
Rearmounted regulation type divides drill way combined type waterproof hammer air valve valves Download PDFInfo
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- CN204828918U CN204828918U CN201520567675.4U CN201520567675U CN204828918U CN 204828918 U CN204828918 U CN 204828918U CN 201520567675 U CN201520567675 U CN 201520567675U CN 204828918 U CN204828918 U CN 204828918U
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Abstract
The utility model discloses a rearmounted regulation type divides drill way combined type waterproof hammer air valve valves, this air valve valves install in infusion pipeline or container system, and it includes high -speed inlet and outlet valve, negative pressure the breathe in one -way drill way of second, check valve, the rearmounted exhaust governing valve of exit end and one -way exhaust drill way of second and micro - air bleeding valve, the trace air bleeding valve passes through screw thread or flange joint in boss drilling department of high -speed inlet and outlet valve's side, and one -way negative pressure is breathed in the one -way drill way of second and check valve and is connected in the upper right side of high -speed inlet and outlet valve top valve bonnet directly over or, and the middle top or the upper right side at high -speed inlet and outlet valve top valve bonnet is connected to volume one -way exhaust drill way of second and exhaust governing valve in at a high speed, the one -way exhaust drill way of second of air valve valves is by exhaust governing valve regulation control. The utility model discloses the air valve valves can high -speed breathe in with big drill way in a large number, volume exhaust in again can medium -sized drill way high -speed.
Description
Technical field
The utility model relates to a kind of rearmounted adjustment type point aperture waterproof system hammer air valve valve group.
Background technique
What existing normal air valve adopted is high speed exhaust mouth and high-speed suction mouth is same aperture, can not independent type selecting, traditional high speed exhaust bore open is usually bigger than normal, can not regulable control, and suction port bore is relatively less than normal, gettering quantity is obviously not enough, negative pressure risk is higher, and micro-vent ports is single, less than normal, only has one to be of a size of 1.6mm, (see outlet valve recommended industry standard CJ/T217-2005), cannot meet bassoon trace exhaust demand.
When pipeline or containment system blank pipe water-filling or topping up, high speed exhaust orifice at high velocity is vented, aperture place can produce certain gas differential pressure, when pressure reduction reaches 2kPa ~ 30kPa, the ball float of common high-speed exhaust valve or composite exhaust valve all can be blown afloat floating by high velocity air, block the large aperture of high speed exhaust, thus make high-speed exhaust valve stop high speed exhaust in advance, its consequence is: in pipeline or container, most of gas is not discharged, pipeline or vessel delivery are not thorough, can not water-filling or topping up completely, half liquid half gas, have a strong impact on pipeline transfusion efficiency or container filling amount, thus initiation pressure is unstable, replace Fluid Contacting vapour and cause wall erosion, measure the problems such as inaccurate.
Existing Power Hi-speed series only has single aperture, and not only bore is the same with the two-way bore of air inlet in its exhaust, and is same physics aperture, cannot meet two-way different intake and exhaust bore and negotiability requirement.
Model utility content
For deficiency of the prior art, the technical problems to be solved in the utility model there are provided a kind of rearmounted adjustment type point aperture waterproof system hammer air valve valve group, this air valve valve group can with a large amount of air-breathing of large orifice at high velocity, again can amount exhaust in medium-sized orifice at high velocity.
For solving the problems of the technologies described above, the utility model is realized by following scheme: a kind of rearmounted adjustment type point aperture waterproof system hammer air valve valve group, this air valve valve group is arranged on liquid transport pipeline or containment system, and it comprises Power Hi-speed, the unidirectional aperture of negative inspiratory pressure second, check valve, the rearmounted exhaust regulating valve of outlet end and the second one-way exhaust aperture and micro-exhaust valve; Described micro-exhaust valve is by screw thread or the Flange joint side boss drill hole at Power Hi-speed, the unidirectional unidirectional aperture of negative inspiratory pressure second and check valve are connected to the upper right of valve bonnet above Power Hi-speed, and at a high speed, flow control two one-way exhaust aperture and exhaust regulating valve are connected to the center top of valve bonnet above Power Hi-speed; Second one-way exhaust aperture of described air valve valve group is by exhaust regulating valve regulable control, and set up separately, second one-way exhaust aperture and the unidirectional aperture of negative inspiratory pressure second are provided separately but not mutually share, can independent type selecting and adjustment, meet the high speed exhaust flow different with high-speed suction two or friction speed or different bore or different intake and exhaust proportion requirement respectively, also can superpose gettering quantity;
A, described Power Hi-speed, it is positioned at whole valve group middle lower portion position, it comprises valve body, ball float, valve gap, valve seat and high-speed bidirectional intake and exhaust aperture, when pipeline or container blank pipe topping up, vent ports is opened wide, appropriate adjustable middle high flow capacity venting capacity is provided and the topping up speed of pilot line by the second one-way exhaust aperture, progress is smoothly to pipeline or container topping up according to plan, its independence allows the second high speed exhaust aperture selecting arbitrarily suitable dimension, and does not need to take into account other factors of consideration; Described valve body upper end open place is connected with valve gap, valve seat, sealed by seal ring between both joints, described valve gap inside is provided with perforate, this perforate is high-speed bidirectional intake and exhaust apertures, described valve inner is a cavity, and in this cavity, center is provided with ball float, this ball float lower end guide rod guide-localization, middle and upper part, by 3 guiding rib guide-localizations, moves up and down in the supporting base of described ball float in valve inner cavity bottom and guiding rib; Described supporting base is provided with pilot hole, and ball float lower end guide rod is by this pilot hole; Described valve seat is through hole, its aperture, lower end coning, high-speed bidirectional intake and exhaust aperture is formed together with seal ring, its downward opening angle Bu Hui Wedged between 90 ° ~ 110 ゜ cuts and clasps ball float, is conducive to ball float under with no pressure or slight positive pressure state, relies on ball float gravity and inside and outside differential pressure fast free to fall; Described valve seat lower end is ball float flap; Seal ring becomes the linear sealing of point-like with the sealing point of contact of ball float; The diameter of ball float top ball and the ratio of high-speed bidirectional intake and exhaust orifice diameter are not less than 1.6, avoid seal ring to clasp ball float;
B, the unidirectional aperture of described negative inspiratory pressure second, it includes the inlet non return check valve opened inwardly, and check valve is opened inwardly, closes outwardly; This check valve is hard sealing structure, and is in outside valve body, does not bear the system pressure in valve body, bears micro positive pressure and tiny structure; When producing negative pressure in system, external atmospheric pressure inwardly pushes the flap of check valve open, ball float by inside and outside differential pressure and floating ball drop-down, whole air intake passage is opened, by the timely air-breathing in the unidirectional aperture of negative inspiratory pressure second and high-speed bidirectional intake and exhaust aperture, tonifying Qi in guard system, makes do not produce vacuum environment in pipe or degree of vacuum is declined;
C, described micro-exhaust valve, be connected on the sidewall of Power Hi-speed, or a micro-exhaust valve is respectively installed in the side, left and right two of this Power Hi-speed valve body, described micro-exhaust valve comprises the second valve body, the second valve gap, the second ball float, lever assembly and micro-vent ports; When normally running, by means of the synergy of the second ball float buoyancy and lever assembly, micro-vent ports under pressure state in time by outside the air discharge duct that discharges in liquid; The port size of described micro-exhaust valve is between 0.5mm ~ 25mm, and described second ball float is located in the chamber of the second valve body, is connected with lever assembly; Described micro-exhaust valve is except the lateral support be connected with high-speed exhaust valve, and its top adopts thin slice bandage and high-speed exhaust valve to bundle, and forms 2 supports, and adding integral rigidity and resisting people is the bearing power of trampling.
Further, described valve body is configured with the valve bonnet of a lightweight; This valve bonnet top and right side are respectively configured with the second high speed exhaust aperture and the unidirectional aperture of negative inspiratory pressure second that can regulate, thus form asymmetric quasi-sovereign two high speed intake and exhaust point apertures.
Further, in described second high speed exhaust aperture, rearmounted exhaust regulating valve is set, its upper end is provided with guide rod and regulates stud, modulating valve flap is allowed to move up and down the area of passage in change second high speed exhaust aperture, driving type be not afraid of blow stifled characteristic allow in pipe, set up higher and suitable gas pressure, the back pressure resistance that when making it to become topping up, fluid column advances, thus automatically and suitably reduce the topping up speed of fluid column, and make it the numerical value reaching 30 ~ 40kPa.
Further, described negative inspiratory pressure second unidirectional aperture valve port has included a check valve, pressure reduction direction inwardly time open, then close time outwardly.
Further, described second high speed exhaust aperture is less than the unidirectional aperture of negative inspiratory pressure second, both the overall dimensions in large reduction by second high speed exhaust aperture, improve orifice differential again, make aperture produce the gas differential pressure of 5kPa ~ 30kPa, increase topping up back pressure, reduce topping up speed; Described rearmounted exhaust regulating valve is orifice differential adjusting control valve, is positioned at the outlet end in the second high speed exhaust aperture, again can be produced the pressure reduction of 1kPa ~ 100kPa by this modulating valve; The two synthesis can produce the gas differential pressure of 15kPa ~ 90kPa, makes it the back pressure resistance becoming the advance of system topping up fluid column, reduces and controls blank pipe topping up speed; Adding of rearmounted exhaust regulating valve, compensate for the differential pressure difference neutral caused of port size, blank pipe filling process is made all to become slow and controlled, blank pipe topping up pressure reduction is no longer the discrete data corresponding with port size class, and become continuous print, increase and decrease slow and adjustable continuous data, can on-site supervision orifice differential in conjunction with valve group upward pressure table, improve operability and the Safety performance of this extreme operating condition of blank pipe filling process.
Further, ball float in described valve body is made up of the Surface of Sphere of two different-diameters, the diameter of its top Surface of Sphere and the diameter ratio in high-speed bidirectional intake and exhaust aperture are not less than 1.6, and the sealing surface in high-speed bidirectional intake and exhaust aperture and the angle of ball float first half Surface of Sphere are not less than 110 °; The diameter of the Surface of Sphere of ball float Lower Half is less, and the size of whole valve body is reduced, and save cost, the diameter ratio in described ball float smaller part diameter and high-speed bidirectional intake and exhaust aperture is greater than 1.2, and the upper and lower end of ball float is all the Surface of Sphere of outwards arch.
Further, because described second high speed exhaust aperture is less than the unidirectional aperture of negative inspiratory pressure second of built-in inlet non return check valve, the ratio of the orifice diameter of the turnover air of whole valve group reaches 1.5:1 ~ 5:1, namely passes in and out area ratio and reaches 2:1 ~ 25:1; The rearmounted exhaust regulating valve in top allow first time blank pipe topping up complete descendant for closing, after closedown, its high speed intake and exhaust ratio again will improve on original basis, the highlyest can reach 40000:1.
Relative to prior art, the beneficial effects of the utility model are:
1. during blank pipe topping up, float because of gravity fall, the first two-way valve port is in opening state, and in the second one-way exhaust, aperture is also in maximum opening state, and the second large aperture of one-way intake is in closed condition because of safety check non-return effect.Now orifice differential is estimated to be in less 10 ~ 15kPa value left and right, and topping up back pressure is large not, and water-filling speed may be very fast.Suitably can regulate modulating valve, turn down aperture in this second high speed, orifice differential is made to rise to 30 ~ 35kPa, improve the back pressure that topping up fluid column advances, thus reduce topping up speed, and make the overall topping up speed of pipeline be in the level of more satisfactory about V=0.3m/s, both not too slow, also not too fast, safe and appropriate.After blank pipe topping up completes, under only having pipe-line system to be in pressure condition, ball float would not fall, and the first two-way aperture keeps closing.
2. when pipeline draining (liquid) or other reasons cause occurring tiny structure (-0.1kPa ~-5kPa) in system, drop-down and ambient atmosphere pressure pushing moves down by self gravitation for the flap-ball float of Power Hi-speed, first two-way valve port is opened, and then the safety check of the second one-way intake valve port is also opened under extraneous atmospheric pressure effect, start a large amount of air-breathing, play balance pressure, destroy the effect of vacuum.When system pressure is increased to 0 and micro positive pressure; air-breathing stops; then start to packing less gap, 2 secondary apertures and supporting micro-vent ports small exhaust; this valve (after blank pipe topping up completes) is made only to have a large amount of air suction function of high speed under negative pressure and not have a large amount of function be vented of high speed under positive pressure; effectively air-breathing can destroy vacuum; thus meet the requirement of pipe-line system needs negative pressure protection, be a kind of novel vacuum breaking and Negative pressure prevention equipment.
3. some the eminence pipeline section now in pipeline may accumulate part even large quantity of air, and they should be able to get rid of by micro-vent ports and packing less 2 large apertures of secondary within a few minutes to dozens of minutes time.After eliminating is clean, water level can and then rise, and ball float can be floated, thus closes the first valve port, returns to normal.
If 4. occur making water hammer up after negative pressure, whether the ball float no matter in the first aperture is floated, and 2 secondary apertures in its downstream are all closed, and does not allow high speed exhaust, and the air sucked in will be trapped.These are trapped or the air that accumulates just in time serves as air cushion buffer body and receives water column Impact energy, thus suppress to make water hammer up.
5. normally having under pressure condition, supporting micro-exhaust valve will get rid of the micro-air disengaged in water.
6. ball float has the Surface of Sphere of upper and lower two part different-diameters, the diameter of top Surface of Sphere is about 1.6 times of the first aperture (4) diameter, much larger than aperture, make it to be not easy Bei Ya Li Wedged inlet hole mouth, simultaneously the downward angle of the first aperture valve seat is exaggerated, from before be less than or equal to 90 ° and be amplified to about 110 °, make it to be not easy to clasp ball float, allow it hurtle down under negative pressure of vacuum and even slight positive pressure state unlatching air-breathing, keep sensitivity that negative pressure is opened and reliability; Under the larger-size prerequisite of guarantee ball float top Surface of Sphere, its underpart Surface of Sphere diameter can reduce as far as possible, thus reduces the size of main valve body, saves cost, its diameter can accomplish 1.2 times that approximate the first orifice diameter, cuts required 1.45 ~ 1.5 times much smaller than usual by Fang Zhi Wedged; In addition, the spheroidal outer surface of outside arch is conducive to the voltage endurance capability improving ball float, make it to accomplish that withstand voltage 5.0MPa ~ 10MPa is even higher, be conducive to resisting unpredicted possible water hammer pressure, be also conducive to manufacturing high pressure type (as PN40 ~ 64) air valve.
7. the check valve that the second high-speed suction aperture is built-in both can be Swing check valve, also can be various check valve (one-way valve) forms such as axial flow type check valve, butterfly Bivalved check valve and damping check valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model air valve valve block structure schematic diagram.
Fig. 2 a measures exhaust condition figure in the utility model air valve valve group blank pipe water-filling.
Fig. 2 b is the utility model air valve valve group normal operating condition figure.
Fig. 2 c is the phase diagram of the utility model air valve valve group negative inspiratory pressure.
Fig. 3 is the utility model adjustment type point aperture composite exhaust valve.
Fig. 4 a is the air valve valve group exhaust condition figure that the utility model is furnished with silence type safety check.
Fig. 4 b is the air valve valve group running state figure that the utility model is furnished with silence type safety check.
Fig. 4 c is the air valve valve group suction condition figure that the utility model is furnished with silence type safety check.
Fig. 5 a is the air valve valve group exhaust condition figure that the utility model is furnished with Swing check valve.
Fig. 5 b is the air valve valve group running state figure that the utility model is furnished with Swing check valve.
Fig. 5 c is the air valve valve group suction condition figure that the utility model is furnished with Swing check valve.
Fig. 6 a is the air valve valve group exhaust condition figure that the utility model is furnished with axial flow type check valve.
Fig. 6 b is the air valve valve group running state figure that the utility model is furnished with axial flow type check valve.
Fig. 6 c is the air valve valve group suction condition figure that the utility model is furnished with axial flow type check valve.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Please refer to accompanying drawing 1 and accompanying drawing 3, the rearmounted adjustment type of one of the present utility model divides aperture waterproof system hammer air valve valve group, this air valve valve group is arranged on liquid transport pipeline or containment system, and it comprises Power Hi-speed, the unidirectional aperture of negative inspiratory pressure second 9, check valve 8, the rearmounted exhaust regulating valve 6 of outlet end and the second one-way exhaust aperture 7 and micro-exhaust valve 12; Described micro-exhaust valve 12 is by screw thread or the Flange joint side boss drill hole at Power Hi-speed, the unidirectional aperture 9 of unidirectional negative inspiratory pressure second and check valve 8 are connected to the upper right of valve bonnet 5 above Power Hi-speed, and at a high speed, flow control two one-way exhaust aperture 7 and exhaust regulating valve 6 are connected to the center top of valve bonnet 5 above Power Hi-speed; Second one-way exhaust aperture 7 of described air valve valve group is by exhaust regulating valve 6 regulable control, and set up separately, second one-way exhaust aperture 7 is provided separately with the unidirectional aperture 9 of negative inspiratory pressure second but not mutually shares, can independent type selecting and adjustment, meet the high speed exhaust flow different with high-speed suction two or friction speed or different bore or different intake and exhaust proportion requirement respectively, also can superpose gettering quantity;
A, described Power Hi-speed, it is positioned at whole valve group middle lower portion position, it comprises valve body 1, ball float 2, valve gap, valve seat 3 and high-speed bidirectional intake and exhaust aperture 4, when pipeline or container blank pipe topping up, vent ports is opened wide, appropriate adjustable middle high flow capacity venting capacity is provided and the topping up speed of pilot line by the second one-way exhaust aperture 7, progress is smoothly to pipeline or container topping up according to plan, its independence allows the second high speed exhaust aperture 7 selecting arbitrarily suitable dimension, and does not need to take into account other factors of consideration; Described valve body 1 upper end open place is connected with valve gap, valve seat 3, sealed by seal ring between both joints, described valve gap 3 inside is provided with perforate, this perforate is high-speed bidirectional intake and exhaust aperture 4, described valve body 1 inside is a cavity, and in this cavity, center is provided with ball float 2, this ball float 2 lower end guide rod guide-localization, middle and upper part, by 3 guiding rib guide-localizations, moves up and down in the supporting base of described ball float 2 in valve body 1 internal cavities bottom and guiding rib; Described supporting base is provided with pilot hole, and ball float 2 lower end guide rod is by this pilot hole; Described valve seat 3 is through hole, its aperture, lower end coning, high-speed bidirectional intake and exhaust aperture 4 is formed together with seal ring, its downward opening angle Bu Hui Wedged between 90 ° ~ 110 ゜ cuts and clasps ball float, is conducive to ball float under with no pressure or slight positive pressure state, relies on ball float gravity and inside and outside differential pressure fast free to fall; Described valve seat 3 lower end is ball float flap; Seal ring becomes the linear sealing of point-like with the sealing point of contact of ball float; The diameter of ball float 2 top ball and the ratio of high-speed bidirectional intake and exhaust aperture 4 diameter are not less than 1.6, avoid seal ring 3 to clasp ball float 2;
The unidirectional aperture 9 of b, described negative inspiratory pressure second, it includes the inlet non return check valve 8 opened inwardly, and check valve 8 is opened inwardly, closes outwardly; This check valve 8 is hard sealing structure, and is in outside valve body, does not bear the system pressure in valve body, bears micro positive pressure and tiny structure; When producing negative pressure in system, external atmospheric pressure inwardly pushes the flap of check valve 8 open, ball float by inside and outside differential pressure and floating ball drop-down, whole air intake passage is opened, by the timely air-breathing in the unidirectional aperture 9 of negative inspiratory pressure second and high-speed bidirectional intake and exhaust aperture 4, tonifying Qi in guard system, makes do not produce vacuum environment in pipe or degree of vacuum is declined;
C, described micro-exhaust valve 12, be connected on the sidewall of Power Hi-speed, or a micro-exhaust valve is respectively installed in the side, left and right two of this Power Hi-speed valve body 1, described micro-exhaust valve 12 comprises the second valve body, the second valve gap, the second ball float, lever assembly and micro-vent ports; When normally running, by means of the synergy of the second ball float buoyancy and lever assembly, micro-vent ports under pressure state in time by outside the air discharge duct that discharges in liquid; The port size of described micro-exhaust valve 12 is between 0.5mm ~ 25mm, and described second ball float is located in the chamber of the second valve body, is connected with lever assembly; Described micro-exhaust valve 2 is except the lateral support be connected with high-speed exhaust valve, and its top adopts thin slice bandage and high-speed exhaust valve to bundle, and forms 2 supports, and adding integral rigidity and resisting people is the bearing power of trampling.Described valve body 1 is configured with the valve bonnet 5 of a lightweight; This valve bonnet 5 top and right side are respectively configured with a second high speed exhaust aperture 7 that can regulate and the unidirectional aperture 9 of negative inspiratory pressure second, thus form asymmetric quasi-sovereign two high speed intake and exhaust point apertures.
In described second high speed exhaust aperture 7, rearmounted exhaust regulating valve 6 is set, its upper end is provided with guide rod and regulates stud, modulating valve flap is allowed to move up and down the area of passage in change second high speed exhaust aperture 7, driving type be not afraid of blow stifled characteristic allow in pipe, set up higher and suitable gas pressure, the back pressure resistance that when making it to become topping up, fluid column advances, thus automatically and suitably reduce the topping up speed of fluid column, and make it the numerical value reaching 30 ~ 40kPa.Containing a check valve 8 in the valve port of described negative inspiratory pressure second unidirectional aperture 9, pressure reduction direction inwardly time open, then close time outwardly.Described second high speed exhaust aperture 7 is less than negative inspiratory pressure second unidirectional aperture 9, and both the overall dimensions in large reduction by second high speed exhaust aperture 7, improved orifice differential again, makes aperture produce the gas differential pressure of 5kPa ~ 30kPa, increases topping up back pressure, reduce topping up speed; Described rearmounted exhaust regulating valve 6 is orifice differential adjusting control valve, is positioned at the outlet end in the second high speed exhaust aperture 7, again can be produced the pressure reduction of 1kPa ~ 100kPa by this modulating valve; The two synthesis can produce the gas differential pressure of 15kPa ~ 90kPa, makes it the back pressure resistance becoming the advance of system topping up fluid column, reduces and controls blank pipe topping up speed; Adding of rearmounted exhaust regulating valve 6, compensate for the differential pressure difference neutral caused of port size, blank pipe filling process is made all to become slow and controlled, blank pipe topping up pressure reduction is no longer the discrete data corresponding with port size class, and become continuous print, increase and decrease slow and adjustable continuous data, can on-site supervision orifice differential in conjunction with valve group upward pressure table, improve operability and the Safety performance of this extreme operating condition of blank pipe filling process.Ball float 2 in described valve body 1 is made up of the Surface of Sphere of two different-diameters, the diameter of its top Surface of Sphere and the diameter ratio in high-speed bidirectional intake and exhaust aperture 4 are not less than 1.6, and the sealing surface in high-speed bidirectional intake and exhaust aperture 4 and the angle of ball float first half Surface of Sphere are not less than 110 °; The diameter of the Surface of Sphere of ball float 2 Lower Half is less, and the size of whole valve body is reduced, and save cost, the diameter ratio in described ball float 2 smaller part diameter and high-speed bidirectional intake and exhaust aperture 4 is greater than 1.2, and the upper and lower end of ball float is all the Surface of Sphere of outwards arch.Due to the unidirectional aperture 9 of negative inspiratory pressure second that described second high speed exhaust aperture 7 is less than built-in inlet non return check valve 8, the ratio of the orifice diameter of the turnover air of whole valve group reaches 1.5:1 ~ 5:1, namely passes in and out area ratio and reaches 2:1 ~ 25:1; The rearmounted exhaust regulating valve 6 in top allow first time blank pipe topping up complete descendant for closing, after closedown, its high speed intake and exhaust ratio again will improve on original basis, the highlyest can reach 40000:1.
embodiment one:as shown in Fig. 2 a, 2b, 2c, when system blank pipe topping up, fluid column promotes pipe (system) interior air and is discharged by the high speed exhaust aperture of air valve, and high-speed bidirectional intake and exhaust aperture 4 is opened wide, and the second high speed exhaust aperture 7 is also in fully open position in initial state.Observe pressure gauge 101 pointer on valve body, valve body 1 sidewall is provided with a dewatering outlet 102, if find that orifice differential (i.e. pressure gauge reading) is lower than 30 ~ 35kPa, vent ports modulating valve can be suitably regulated to make it progressively to increase, this orifice differential increased namely manages the back pressure of (system) interior fluid column flows, back pressure is larger, fluid column flows is slower, the suitable liquid flow velocity as V=0.3m/s is optimal blank pipe water-filling (topping up) speed, during design usually according to reach during back pressure Δ p ≈ 35kPa above-mentioned desirable topping up flow speed value and v=0.3m/s to design this second at a high speed in measure vent ports aperture.But because aperture, aperture is according to inside nominal diameter and so-called DN value, so the standard DN that the discontinuous bore value of selection is discrete usually can a little more than the accurate aperture aperture dn for keeping V=0.3m/s and Δ p ≈ 35kPa required for reality.So vent ports modulating valve designs in order to fine adjustment orifice differential.Its pressure reduction regulation range can reach 1kPa ~ 100kPa, can contain the minimum and maximum extreme value of orifice differential required for system topping up back pressure.Because the frequency of blank pipe topping up is very low, after blank pipe topping up completes, can artificially close this second unidirectional high speed exhaust aperture by modulating valve, manually open again when next time needs.
embodiment two:as Fig. 2 a, 2b, shown in 2c, when unexpected termination of pumping or throttle down or draining (liquid), in pipe (system), the fluid column of some position may produce separation, vacuum (negative pressure) is there is in system, now outside pressure is greater than internal pressure, ambient air pressure pushes check valve flap open, and to conduct oneself with dignity the ball float flap of combining and pressing down main valve with flap, flap moves down, intakeport and being all opened, air is entered by the high-speed suction aperture of negative inspiratory pressure valve and the outspoken speed of the first two-direction hole, negative pressure in pipe is dropped to minimum, to ensure the Security of pipe fitting and sealed interface.
embodiment three:as shown in Fig. 2 a, 2b, 2c, when system pressure is increased to close to atmospheric pressure but still is in tiny structure (-0.1kPa ~-5kPa) state, the spring force of the check valve in air-breathing aperture or the flap gravity of Swing check valve just overcome making a concerted effort and closing aperture of inside and outside differential pressure, stop a large amount of air-breathing, also do not allow high speed exhaust.Make this valve only have under negative pressure high-speed suction function and not under positive pressure high speed exhaust function (but because poorly sealed close, check valve still has very little trace exhaust and micro inspiration ability after closing), effectively air-breathing can destroy vacuum, thus meet some particular/special requirement of pipe-line system, be a kind of novel vacuum breaking and Negative pressure prevention equipment.
embodiment four:as shown in Fig. 2 a, 2b, 2c, negative pressure unlatching value sets: select different check valve spring strength (or flap weight of Swing check valve) and the weight of ball float, slightly can change negative pressure and open setting value, change scope is greatly between-9000Pa ~-10Pa (gauge pressure), and common negative pressure unlatching value scope should between-5000Pa ~-500Pa.Different negative pressure unlatching values may need the flap combination of the spring of different stage and Different Weight to realize.
embodiment five:as shown in Fig. 2 a, 2b, 2c, when the air assembled in pipeline or system enters in valve, enter in micro-exhaust valve valve by connecting tube, when these air accumulations are more, in micro-exhaust valve valve, liquid level can decline, the second ball float loss of buoyance can be made and fall, thus opening micro-vent ports, getting rid of the air assembled.But, because port size is very little, so its air displacement is limited, compares with gettering quantity, differ 2 ~ 3 even 4 orders of magnitude, thus make combination brake switch and proporting become one there is the high Special valve that can suppress to make up water hammer inhaling micro-row function.Even if when manually not closing exhaust regulating valve, the ratio of air-breathing and exhaust diameter also reaches 1.5:1 ~ 5:1, namely the ratio of orifice area or negotiability reaches 2:1 ~ 25:1, and its suppression is made the ability of water hammer up and waited the common Power Hi-speed of bore incomparable.
embodiment six:as shown in Fig. 2 a, 2b, 2c; when the air assembled in pipeline or system enters in valve; entered in micro-exhaust valve valve by connecting tube and avoid soaked with liquid: intakeport structure is designed to be in outside main valve body; crucial movable part-valve rod, guide pin bushing and spring are not all immersed in liquid outside valve body of main valve; avoid fouling and get rusty; improve the reliability of air suction function, and air suction function is one of emphasis of pipe-line system negative pressure protection.
embodiment seven:as shown in Fig. 2 a, 2b, 2c, under vitals mainly concentrates on valve bonnet and valve gap, after opening valve bonnet and valve gap, can on-line maintenance.
embodiment eight:as shown in Fig. 4 a, 4b, 4c, 5a, 5b, 5c, 6a, 6b, 6c, this nine secondary figure is the running state figure that air valve valve group adds three kinds of safety check, Fig. 4 a is the air valve valve group exhaust condition figure that the utility model is furnished with silence type safety check.Fig. 4 b is the air valve valve group running state figure that the utility model is furnished with silence type safety check, Fig. 4 c is the air valve valve group suction condition figure that the utility model is furnished with silence type safety check.In fig .4, what endoporus place, negative inspiratory pressure second unidirectional aperture 9 adopted is silencer 91.
Fig. 5 a is the air valve valve group exhaust condition figure that the utility model is furnished with Swing check valve, Fig. 5 b is the air valve valve group running state figure that the utility model is furnished with Swing check valve, Fig. 5 c is the air valve valve group suction condition figure that the utility model is furnished with Swing check valve.In fig 5 a, what endoporus place, negative inspiratory pressure second unidirectional aperture 9 adopted is rotary-open type device 92.
Fig. 6 a is the air valve valve group exhaust condition figure that the utility model is furnished with axial flow type check valve, Fig. 6 b is the air valve valve group running state figure that the utility model is furnished with axial flow type check valve, Fig. 6 c is the air valve valve group suction condition figure that the utility model is furnished with axial flow type check valve.In Fig. 6 a, what endoporus place, negative inspiratory pressure second unidirectional aperture 9 adopted is axial flow device 93.
The foregoing is only preferred implementation of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a rearmounted adjustment type divides aperture waterproof system hammer air valve valve group, this air valve valve group is arranged on liquid transport pipeline or containment system, it is characterized in that: it comprises Power Hi-speed, the unidirectional aperture of negative inspiratory pressure second (9), check valve (8), the rearmounted exhaust regulating valve of outlet end (6) and the second one-way exhaust aperture (7) and micro-exhaust valve (12); Described micro-exhaust valve (12) is by screw thread or the Flange joint side boss drill hole at Power Hi-speed, the unidirectional unidirectional aperture of negative inspiratory pressure second (9) and check valve (8) be connected to valve bonnet above Power Hi-speed (5) upper right or directly over, at a high speed, flow control two one-way exhaust aperture (7) and exhaust regulating valve (6) are connected to center top or the upper right of valve bonnet above Power Hi-speed (5); Second one-way exhaust aperture (7) of described air valve valve group is by exhaust regulating valve (6) regulable control, and set up separately, second one-way exhaust aperture (7) and the unidirectional aperture of negative inspiratory pressure second (9) are provided separately but not mutually share, can independent type selecting and adjustment, meet the high speed exhaust flow different with high-speed suction two or friction speed or different bore or different intake and exhaust proportion requirement respectively, also can superpose gettering quantity;
A, described Power Hi-speed, it is positioned at whole valve group middle lower portion position, it comprises valve body (1), ball float (2), valve gap, valve seat (3) and high-speed bidirectional intake and exhaust aperture (4), described valve body (1) upper end open place and valve gap, valve seat (3) connects, sealed by seal ring between both joints, described valve gap (3) inside is provided with perforate, this perforate is high-speed bidirectional intake and exhaust aperture (4), described valve body (1) inside is a cavity, in this cavity, center is provided with ball float (2), this ball float (2) lower end guide rod guide-localization, middle and upper part is by 3 guiding rib guide-localizations, move up and down in the supporting base of described ball float (2) in valve body (1) internal cavities bottom and guiding rib, described supporting base is provided with pilot hole, and ball float (2) lower end guide rod is by this pilot hole, described valve seat (3) is through hole, its aperture, lower end coning, high-speed bidirectional intake and exhaust aperture (4) is formed together with seal ring, its downward opening angle Bu Hui Wedged between 90 ° ~ 110 ゜ cuts and clasps ball float, is conducive to ball float under with no pressure or slight positive pressure state, relies on ball float gravity and inside and outside differential pressure fast free to fall, described valve seat (3) lower end is ball float flap, seal ring becomes the linear sealing of point-like with the sealing point of contact of ball float, the diameter of ball float (2) top ball and the ratio of high-speed bidirectional intake and exhaust aperture (4) diameter are not less than 1.6, avoid seal ring (3) to clasp ball float (2),
B, the unidirectional aperture of described negative inspiratory pressure second (9), it includes the inlet non return check valve (8) opened inwardly, and check valve (8) is opened inwardly, closes outwardly; This check valve (8) is hard sealing structure, and is in outside valve body, does not bear the system pressure in valve body, bears micro positive pressure and tiny structure;
C, described micro-exhaust valve (12), be connected on the sidewall of Power Hi-speed, or a micro-exhaust valve is respectively installed in the side, left and right two of this Power Hi-speed valve body (1), described micro-exhaust valve (12) comprises the second valve body, the second valve gap, the second ball float, lever assembly and micro-vent ports.
2. the rearmounted adjustment type of one according to claim 1 divides aperture waterproof system hammer air valve valve group, it is characterized in that: described valve body (1) is configured with the valve bonnet (5) of a lightweight; This valve bonnet (5) top and right side are respectively configured with the second high speed exhaust aperture (7) and the unidirectional aperture of negative inspiratory pressure second (9) that can regulate, thus form asymmetric quasi-sovereign two high speed intake and exhaust point apertures.
3. the rearmounted adjustment type of one according to claim 2 divides aperture waterproof system hammer air valve valve group, and it is characterized in that: arrange rearmounted exhaust regulating valve (6) in described second high speed exhaust aperture (7), its upper end is provided with guide rod and regulates stud.
4. the rearmounted adjustment type of one according to claim 1 divides aperture waterproof system hammer air valve valve group, it is characterized in that: containing a check valve (8) in the described unidirectional aperture of negative inspiratory pressure second (9) valve port.
5. the rearmounted adjustment type of one according to claim 2 divides aperture waterproof system hammer air valve valve group, it is characterized in that: described second high speed exhaust aperture (7) is less than the unidirectional aperture of negative inspiratory pressure second (9), described rearmounted exhaust regulating valve (6) is orifice differential adjusting control valve, is positioned at the outlet end in the second high speed exhaust aperture (7).
6. the rearmounted adjustment type of one according to claim 1 divides aperture waterproof system hammer air valve valve group, it is characterized in that: the ball float (2) in described valve body (1) is made up of the Surface of Sphere of two different-diameters, the diameter of its top Surface of Sphere and the diameter ratio in high-speed bidirectional intake and exhaust aperture (4) are not less than 1.6, and the sealing surface in high-speed bidirectional intake and exhaust aperture (4) and the angle of ball float first half Surface of Sphere are not less than 110 °; The diameter of the Surface of Sphere of ball float (2) Lower Half is less, and the diameter ratio in described ball float (2) smaller part diameter and high-speed bidirectional intake and exhaust aperture (4) is greater than 1.2, and the upper and lower end of ball float is all the Surface of Sphere of outwards arch.
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| CN201520567675.4U CN204828918U (en) | 2015-07-31 | 2015-07-31 | Rearmounted regulation type divides drill way combined type waterproof hammer air valve valves |
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| CN201520567675.4U CN204828918U (en) | 2015-07-31 | 2015-07-31 | Rearmounted regulation type divides drill way combined type waterproof hammer air valve valves |
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| CN109073113A (en) * | 2016-02-17 | 2018-12-21 | Flow国际公司 | Valve assembly at and its component |
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| CN106402440A (en) * | 2016-12-12 | 2017-02-15 | 扬州大学 | Single-cavity integrated full-pressure gas inlet and outlet valve based on pressure distribution principle and application method of gas inlet and outlet valve |
| CN106439123A (en) * | 2016-12-12 | 2017-02-22 | 扬州大学 | Double-chamber external connected type full-pressure suction and exhaust valve based on pressure distribution principle and application method thereof |
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| CN106402440B (en) * | 2016-12-12 | 2018-09-28 | 扬州大学 | It is a kind of based on pressure principle single-chamber integral type total head air inlet and exhaust valve and its application process |
| CN106592706A (en) * | 2017-01-22 | 2017-04-26 | 四平市重兴机械设备有限公司 | Vacuum inhibitor for non-negative pressure water supply |
| CN106592706B (en) * | 2017-01-22 | 2022-08-09 | 四平市重兴机械设备有限公司 | Vacuum suppressor for non-negative pressure water supply |
| CN107781495A (en) * | 2017-12-05 | 2018-03-09 | 博纳斯威阀门股份有限公司 | A kind of combined type air inlet and exhaust valve of water hammer-resistant structure |
| CN111828692A (en) * | 2020-08-11 | 2020-10-27 | 中国水利水电科学研究院 | Differential pressure runner air valve for preventing water hammer and water hammer preventing method |
| CN111828692B (en) * | 2020-08-11 | 2021-09-10 | 中国水利水电科学研究院 | Differential pressure runner air valve for preventing water hammer and water hammer preventing method |
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Effective date of registration: 20180309 Address after: 311835 Zhejiang city in Shaoxing Province town of Zhuji city shop Industrial Zone Patentee after: ZHEJIANG DUNAN INTELLIGENT CONTROL TECHNOLOGY CO., LTD. Address before: 518034 Guangdong city of Shenzhen province Futian District Xinzhou road three honey village Tin Ming Yuan A block 31D Patentee before: Shenzhen Hualida Electromechanical Technology Co.,Ltd. |
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Effective date of registration: 20190220 Address after: 244000 Shizishan Economic Development Zone, Tongling City, Anhui Province Patentee after: Anhui Redstar Valve Co., Ltd. Address before: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG DUNAN INTELLIGENT CONTROL TECHNOLOGY CO., LTD. |