CN110173577A - A kind of lower buffer compartment membrane composite air inlet and exhaust valve - Google Patents
A kind of lower buffer compartment membrane composite air inlet and exhaust valve Download PDFInfo
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- CN110173577A CN110173577A CN201910532504.0A CN201910532504A CN110173577A CN 110173577 A CN110173577 A CN 110173577A CN 201910532504 A CN201910532504 A CN 201910532504A CN 110173577 A CN110173577 A CN 110173577A
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- 239000000872 buffer Substances 0.000 title claims abstract description 92
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 title claims abstract description 17
- 238000007667 floating Methods 0.000 claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000003139 buffering effect Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 206010022000 influenza Diseases 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 45
- 238000010586 diagram Methods 0.000 description 8
- 238000011176 pooling Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The present invention relates to a kind of lower buffer compartment membrane composite air inlet and exhaust valves, including the valve body and valve deck by the affixed composition main valve chamber of bolt, the main valve chamber is divided into interconnected floating ball chamber and cushion chamber by the intracorporal buffering panel seat of valve, it is characterized in that, the exhaust valve further includes the buffer gear that auxiliary reset mechanism is arranged and sets gradually from bottom to top in main valve chamber, lever and floating mechanism and primary seal mechanism, the auxiliary reset mechanism is connect with primary seal mechanism, the exhaust ports on main valve chamber top are arranged in compared with prior art in the primary seal mechanism, the present invention has vdiverse in function, meet repeatable a large amount of exhausts and micro exhaust simultaneously, buffer anti-negative pressure, the advantages that safe and reliable.
Description
Technical field
The present invention relates to exhaust valve technical fields, more particularly, to a kind of lower buffer compartment membrane composite air inlet and exhaust valve.
Background technique
Currently, there are many domestic combined type air inlet and exhaust valve, but most of function is a large amount of exhausts plus micro exhaust and a large amount of
Air-breathing, some have upper pooling feature, also have with lower pooling feature, but they have the shortcomings that common, an a large amount of exhausts
It is disposable, once flap, which closes final vacuum, can only lean on micro small port exhaust, if gas forming amount is caused greater than capacity
Assemble many air in pipeline.Also there is cylinder air-relief valve currently on the market, realizes that function only leans on big mouth to be vented, but its disadvantage
It is that air closing pressure is very low, first water flowing exhaust is insufficient, and fouling card resistance easy to oxidize in cylinder, lead to valve invalidation,
Additionally, due to no micro degassing function, flap can be opened frequently, easily snapped into floating material and caused a large amount of leaks.
There are two types of conventional exhaust valve is present:
First, floating ball lever formula exhaust valve: for advantage using extensively, working performance is good, and a large amount of exhausts and micro exhaust are all
It is able to satisfy；Disadvantage bore maximum can only arrive DN100, and operating pressure PN10, capacity is small, without pooling feature, floating ball lever with
Connecting pin between bracket is easy to fall off；Water-supply-pipe lesser for caliber, pipeline water-filling speed answers strict control, especially flat
When unexpected termination of pumping, be easy to produce gather qi together pipe explosion accident.
Second, float-type exhaust valve: advantage has double-exhaust port, point a large amount of exhausts and micro exhaust, when there is water in valve body,
Floating ball, which floats, blocks exhaust outlet, plays the purpose of exhaust, and disadvantage is without pooling feature, when a large amount of high speed exhausts of big exhaust outlet, due to
The effect of gas support is no longer vented, (generate negative pressure unless termination of pumping again, in pipe and just open big exhaust outlet), for Large Diameter Pipeline pipeline with
Broad-minded pipeline is deposited, this exhaust valve is installed, not can effectively prevent pipe explosion accident.
Summary of the invention
It is multiple it is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide diaphragm is buffered under one kind
Mould assembly air inlet and exhaust valve.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of lower buffer compartment membrane composite air inlet and exhaust valve, valve body and valve deck including passing through the affixed composition main valve chamber of bolt,
The main valve chamber is divided into interconnected floating ball chamber and cushion chamber by the intracorporal buffering panel seat of valve, which further includes setting
Auxiliary reset mechanism and the buffer gear set gradually from bottom to top in main valve chamber, lever and floating mechanism and primary seal machine
Structure, the auxiliary reset mechanism are connect with primary seal mechanism, and the exhaust on main valve chamber top is arranged in the primary seal mechanism
At mouthful.
The primary seal mechanism includes the flap being arranged with exhaust outlet face, is mounted on exhaust ports to limit and prevent
The valve petal shelf and the sealing ring to realize sealing with flap blown, the upper axis of the flap are connect with auxiliary reset mechanism,
Lower axle is connect with lever and floating mechanism, and the micro exhaust of connection floating ball chamber and ambient atmosphere is equipped in the lower axle of the flap
Hole.
The auxiliary reset mechanism is arranged above exhaust outlet, including bonnet, the lower valve body being fixed on valve deck, the
One spring and pressing plate shaft, the bonnet, and lower valve body form a cavity, the diaphragm point which passes through diaphragm platen clamp
For top diaphragm cavity and lower cavity, the pressing plate shaft upper end is embedded in the mounting groove at the top of bonnet, and lower end passes through film
Piece simultaneously slots and is inserted into the upper axis of flap, and first spring is arranged in lower cavity, and the upper end is connect with diaphragm pressing plate, under
End is connect with lower valve body bottom.
The lever and floating mechanism includes floating ball, L shape connector, lever, the triple valve being embedded in valve deck and consolidates
It is scheduled on the U-shaped liner that on floating ball cavity wall and bottom has limbers, the floating ball is placed in U-shaped liner, and internal
Installation through-hole is offered, with the sealing of L shape connector by screw thread screwing hermetic at the top of the installation through-hole, the L shape connects
The contact position of fitting micro gas vent on the lower axle bottom surface with flap is equipped with the rubber seal seat to seal, the lever
The interconnecting piece of long end and L shape connector is connected by the rotation of the first pin shaft, and the spool of short end and triple valve connects, and at fulcrum
Be arranged the second pivot pin formed lever construction, described three air flues of triple valve respectively with floating ball chamber, outside atmosphere and diaphragm cavity
Connection, to realize on-off of the diaphragm cavity respectively with floating ball chamber and outside atmosphere.
The buffer gear includes buffer board, second spring and buffer shaft, and the head of the buffer shaft is boss
Limit plate is installed by bolt in type, bottom end, and the buffer board is set in buffering shaft head and can move up and down, described
Second spring be set in buffering shaft head, the upper end is connect with the lower surface of U-shaped liner, and lower end is connect with buffer board, to
Realize buffer board reset, the buffer shaft tail portion insertion installation through-hole bottom fix, the floating ball bottom with it is U-shaped
Liner contact position is equipped with cushion.
The triple valve includes lower valve body, spool and the setting of lower openings in the intracorporal threeway valve seat of lower valve, institute
The first air flue to be connected to lower valve intracoelomic cavity Yu floating ball chamber is equipped in the threeway valve seat stated, opened up in the lower valve body to
It is connected to lower valve intracoelomic cavity and the second air flue of diaphragm cavity and the third air flue to be connected to lower valve intracoelomic cavity and outside atmosphere, institute
Annular protrusion is equipped in the middle part of the spool stated, on which is arranged in lower valve intracoelomic cavity and can be in lower valve intracoelomic cavity
Lower movement, the spool lower end are connect after sequentially passing through the first air flue and threeway seat bottom portion with the short end of L shape connector, when
When annular protrusion is located at upper position, the second air flue is connected to by lower valve intracoelomic cavity with the first air flue, under annular protrusion is located at
When portion position, the second air flue is connected to by lower valve intracoelomic cavity with third air flue.
The triple valve further include the upper valve body of lower openings, the third spring being arranged in upper valve intracoelomic cavity and gland and
Adjusting bolt on upper valve body is set, forms closed upper valve in the lower openings of the lower valve body top insertion upper valve body
Intracoelomic cavity, the third spring upper end are connect with the adjusting bolt bottom end for protruding into upper valve intracoelomic cavity, and lower end is connect with gland, institute
The spool upper end stated passes through after upper valve intracoelomic cavity is protruded on lower valve body top and connect with gland.
Carry out first water flowing in the exhaust valve, that is, when realizing a large amount of exhausts:
Buffer board, floating ball and flap are respectively positioned on lower position, diaphragm, diaphragm pressing plate, pressing plate shaft and triple valve valve
Core is respectively positioned on upper position, and diaphragm cavity is connected to outside atmosphere, and when first water flowing, the bulk gas in pipeline passes through buffer board
The gap between panel seat is buffered valve body up to flow, at this point, buffer board is in maximum opening by second spring, gas from
Exhaust outlet at flap and sealing ring is discharged into outside atmosphere, to realize a large amount of exhausts；
When a large amount of exhausts close to an end, water is to moment in main line:
Buffer board is in the closed position, and the spool of floating ball, flap and triple valve is respectively positioned on lower position, diaphragm, diaphragm
Pressing plate and pressing plate shaft are respectively positioned on upper position, and at the end of a large amount of exhausts, a large amount of water is poured in valve body, are passing through buffer board
When, buffer board moves up under the action of water flow, when reach buffer shaft boss limit when, buffer board and buffering panel seat it
Between aperture reduce, so that water be made to slowly enter in valve body, floating ball slowly moves up under the buoyancy of water, prevents from spraying water
Phenomenon；
Terminate moment in first a large amount of exhausts:
Diaphragm, diaphragm gland, pressing plate shaft are in upper position, and the spool of floating ball, flap and triple valve is respectively positioned on down
Portion position, at this point, floating ball floats, the lower axle that seal receptacle withstands flap is moved up, so that flap closes exhaust outlet, triple valve
Spool moves down under the action of the spring, is connected to diaphragm cavity with outside atmosphere, to close exhaust valve, and buffers pressing plate and exists
It is moved down under the action of spring.
When normal operation, exhaust valve is in close state, then is had:
The spool of buffer board and triple valve is respectively positioned on lower position, floating ball, flap, diaphragm, diaphragm pressing plate and pressing plate shaft
It is respectively positioned on upper position；
When have a small amount of gas need to be discharged carry out micro exhaust when, a small amount of gas from buffer board and buffering panel seat between opening from
Cushion chamber enters floating ball chamber top, and a small amount of gas effect reduces floating buoyancy, floating ball and seal receptacle micro sinking together, this
When, gap is generated between the micro gas vent and seal receptacle at the lower axle bottom surface of flap, and minimum gas is discharged from micro gas vent, complete
At micro exhaust, after minimum gas is drained, floating ball moves up under the action of water buoyancy, closes under seal receptacle and flap
The gap between micro gas vent at axis bottom surface, closes micro exhaust, and then carry out when occurring extra a small amount of gas again
Repeat micro exhaust；
When normal operation, which occurs largely getting angry in the middle, to be largely vented:
It is intracavitary that bulk gas from cushion chamber enters floating ball, and liquid level declines under gas effect, and floating ball is made to sink, and drives lever
It up being moved with the spool of triple valve, enters the compressed gas of floating ball chamber in diaphragm cavity, diaphragm drives pressing plate shaft to move down,
It drives flap to move down and opens exhaust outlet, be largely vented, at the end of a large amount of exhausts, floating ball is under the action of water buoyancy
It moves up, the spool of triple valve is driven to move down, gas is made to enter triple valve top through piping from diaphragm cavity and be discharged to
In outside atmosphere, diaphragm and pressing plate shaft quickly move up under the action of the first spring, and flap is also fast under the action of floating ball
Speed up moves, and closes exhaust outlet, while meeting repetition and being largely vented.
When the exhaust valve is in termination of pumping suction condition:
Buffer board, floating ball and flap are respectively positioned on lower position, diaphragm 15 up, diaphragm, diaphragm pressing plate, pressing plate shaft and
The spool of triple valve is respectively positioned on upper position, at this point, gas enters from exhaust outlet, using between buffer board and buffering panel seat
Gap enters in main line, supplements gas in main line and prevents negative pressure.
Compared with prior art, the invention has the following advantages that
One, vdiverse in function: lower buffer compartment membrane composite air inlet and exhaust valve of the invention has six functions, respectively includes first
Water flowing state (a large amount of exhausts), water to momentary status (buffer board closing), a large amount of exhaust end moments, (floating ball floated, and flap closes
Close, threeway valve group and pressure source are closed, and diaphragm cavity connection atmosphere is made), (floating ball slightly decreases the micro exhaust in operation, opens
Open micro exhaust), (a large amount of exhausts, floating ball decline, triple valve make pressure source importing diaphragm cavity, film to a large amount of exhausts in operation
Piece pressing plate depresses flap, a large amount of to be vented), termination of pumping suction condition (a large amount of air-breathings of negative pressure in managing).
Two, meet repetition simultaneously to be largely vented: can only be carried out during installation with existing float-type exhaust valve primary a large amount of
Exhaust is compared, and the present invention can carry out multiple due to having installed auxiliary reset mechanism and triple valve additional according to gas flow in main line
The a large amount of exhaust events of repetition, thus overcome micro exhaust it is insufficient when air in pipeline accumulation.
Three, have lower pooling feature: one of buffer board is arranged in this exhaust valve in cushion chamber, effectively slows down the water of main line
Stream impact effectively prevent the floating ball of lighter weight to receive the impact of water flow, significantly in the liner of floating ball lower periphery setting aperture
Alleviate prominent pressure phenomenon when water spray phenomenon and flap at the end of being largely vented are closed.
Four, prevent blowing design: compared with cylinder exhaust valve, auxiliary reset mechanism of the present invention will not be blocked using diaphragm chamber form
Resistance, while the present invention is provided simultaneously with micro exhaust and flap and floating ball uses and prevents blowing design, dynamic air closes pressure very
High (exhaust velocity is fast) uses micro-exhaust valve function in operation again, effectively prevents the frequent unlatching of flap.
Five, switch flexible, favorable sealing property: the triple valve of this exhaust valve is designed using cut-off type structure, and switch is flexible,
Favorable sealing property, uses vulcanized rubber at seal spool, sealing surface and lower sealing on the seal clearance of spool and triple-valve body
Face control is furnished with the higher spring of force value precision on 2-3MM, top, and spring can be according to pressure medium sets itself；Triple valve
Stroke is short, switch is sensitive, sealing speed is fast, good seal performance, and valve body is designed using stainless steel, not perishable.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is first water flowing status diagram.
Fig. 3 is water to momentary status schematic diagram.
Fig. 4 a is that a large amount of exhausts terminate moment schematic diagram, and Fig. 4 b is the partial enlarged view in the portion I in Fig. 4 a.
Fig. 5 is the micro exhaust schematic diagram in operation.
Fig. 6 a is a large amount of exhaust schematic diagrames in operation, and Fig. 6 b is the partial enlarged view in the portion II in Fig. 6 a.
Fig. 7 is termination of pumping suction condition schematic diagram.
Fig. 8 is threeway valve group enlarged diagram.
Wherein: 1, valve body, 2, buffer board, 3, second spring, 4, cushion, 5, floating ball, 6, lever, the 7, first pin shaft, 8,
Seal receptacle, the 9, first guide sleeve, 10, valve petal shelf, 11, flap, 12, sealing ring, the 13, second guide sleeve, the 14, first spring, 15, film
Piece, 16, diaphragm pressing plate, 17, pressing plate shaft, 18, bonnet, 19, valve deck, 20, triple valve, the 21, second pin shaft, 22, buffer shaft,
23, third guide sleeve, 24, micro gas vent, 25, lower valve body, 26, limbers, 27, liner, 28, L shape connector, 29, buffer board
Seat, 201, upper valve body, 202, lower valve body, 203, spool, 204, gland, 205, third spring, 206, adjusting bolt, 207, threeway
Valve seat, the 2001, first air flue, the 2002, second air flue, 2003, third air flue.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment:
As shown in Figure 1, the present invention provides a kind of lower buffer compartment membrane composite air inlet and exhaust valve, including valve body 1, buffer board 2,
Two springs 3, cushion 4, floating ball 5, lever 6, the first pin shaft 7, seal receptacle 8, the first guide sleeve 9, valve petal shelf 10, flap 11, sealing
Enclose the 12, second guide sleeve 13, the first spring 14, diaphragm 15, diaphragm pressing plate 16, pressing plate shaft 17, bonnet, 18, valve deck 19, triple valve
20, the second pin shaft 21, buffer shaft 22, third guide sleeve 23 form, floating ball 5 and seal receptacle 8, lever 6, the first pin shaft 7 and the second pin
Axis 21 is linked together, and forms lever and floating mechanism, it is not easy to which card resistance, seal receptacle upper end vulcanize seal rubber, play micro exhaust
Sealing function.
Triple valve 20 is designed using cut-off type structure, and spring can switch flexibly sealing according to pressure medium sets itself
It is functional, use vulcanized rubber, spool and triple-valve body to seal using ontology at seal spool, stroke is short to play quickly
The effect of open and close, triple-valve body is designed using stainless steel, not perishable；
Valve deck 19 connect with valve petal shelf 10, sealing ring 12, flap 11, the first guide sleeve 9, the second guide sleeve 13, forms valve
Primary seal, a large amount of exhausts are by the gap exhaust between flap 11 and sealing ring 12, the 11 micro exhaust of lower axle medium design of flap
Hole 24, micro gas vent 24 of the micro exhaust among 11 lower axle of flap are vented.
Valve deck 19 and bonnet, 18, pressing plate shaft 17, diaphragm 15, diaphragm pressing plate 16, the second guide sleeve 13, the first spring 14 and valve
Valve 11 forms the aperture of diaphragm cavity control flap 11, and the first spring 14 is used as auxiliary reset element, and pressing plate shaft 17 is adopted with flap 11
With two-piece design, positioning and limit are played the role of in the lower end of the upper end insertion pressing plate shaft 17 of flap 11.
Lever 6 is to control the position of the switch of 20 spool of triple valve, to control the gas of diaphragm cavity and the on-off of atmosphere.
Valve body 1 and buffer board 2, buffer shaft 22, second spring 3, form buffer unit, and valve body lower end uses restriction, control
Runner size processed prevents water spray phenomenon.
Valve body 1 and floating ball 5, buffer shaft 22, valve body are designed using liner type, are effectively improved dynamic air and are closed pressure,
Two apertures are matched in liner lower end, play slowly water inlet 5 Float upward function of floating ball, and floating ball 5 uses circular hollow design, are packed into buffer shaft
In 22, floating ball 5 is not easy to deviate under buoyancy, plays guiding role.
Embodiment 1:
First water flowing state (a large amount of exhausts)
As shown in Fig. 2, buffer board 2 is down, floating ball 5 down, flap 11 down, diaphragm 15 up, diaphragm pressing plate 16 up,
Up, 20 spool of triple valve is up for pressing plate shaft 17；When first water flowing, bulk gas in pipeline passes through buffer board 2 and valve body
(buffer board 2 is in maximum opening by resetting second spring 3) is up arranged in 1 gap, and bulk gas is from flap 11 and seals
The exhaust outlet enclosed at 12 is discharged into atmosphere, realizes the purpose being largely vented.
Embodiment 2:
Water is to momentary status (buffer board closing)
As shown in figure 3, buffer board 2 is up, floating ball 5 down, flap 11 down, diaphragm 15 up, diaphragm pressing plate 16 up,
Up, down, at the end of a large amount of exhausts are fast, a large amount of water can pour in valve body 1 20 spool of triple valve pressing plate shaft 17, largely
When water passes through buffer board 2, buffer board 2 in the presence of hydraulic pressure, is moved up, when reaching the limit of 22 step of buffer shaft, buffering
Plate 2 and 1 aperture of valve body reduce, and so that water is slowly entered valve body 1, floating ball 5 is slowly up moved under the buoyancy of water, prevented
The phenomenon that water spray, play the effect of buffering.
Embodiment 3:
A large amount of exhausts terminate moment, and (floating ball floats at this time, and flap is closed, and threeway valve group and pressure source are closed, and makes diaphragm cavity
It is connected to outside atmosphere)
As shown in Figs. 4a and 4b, buffer board 2 up, floating ball 5 up, flap 11, diaphragm 15, diaphragm pressing plate 16, pressing plate shaft
17, down, at the end of a large amount of exhausts, floating ball 5 floats 20 spool of threeway valve group, and seal receptacle 8 withstands flap 11 and moves up, valve
Valve 11 is closed, and the spool of triple valve 20 moves down under the action of the spring, and the gas for closing floating ball chamber enters diaphragm cavity, makes diaphragm
Chamber and atmosphere, to play the purpose for closing exhaust valve.
Embodiment 4:
Micro exhaust in operation (floating ball slightly decreases at this time, the micro exhaust of breakdown)
As shown in figure 5, buffer board 2 is down, floating ball 5 up, flap 11 up, diaphragm 15 up, diaphragm pressing plate 16 up,
Pressing plate shaft 17 up, 20 spool of triple valve down, operate normally when, exhaust valve is in close state, when have small amounts of gases need
When discharge, opening of the gas between buffer board 2 and the buffering panel seat of valve body 1 enters 1 top of valve body, under gas effect, floating
Ball 5 presses down, and due to being minimum gas, floating ball 5 is pressed down together with seal receptacle 8 under gas effect, makes seal receptacle 8 and flap
The micro gas vent 24 of 11 lower axle bottom surfaces generates gap, and minimum gas is from micro 24 exits valve body 1 of gas vent, to play micro
The effect of exhaust, when minimum gas is drained, floating ball 5 up moves under the action of water pressure, eliminate seal receptacle 8 with it is micro- in flap 11
The gap for measuring gas vent 24, closes micro exhaust, plays the role of normal water supply.
Embodiment 5:
A large amount of exhausts in operation (are largely got angry, floating ball decline, triple valve makes floating ball cavity pressure source import diaphragm at this time
Chamber, diaphragm pressing plate screw down valve valve are a large amount of to be vented)
As shown in figure 6 a and 6b, buffer board 2 down, floating ball 5 down, flap 11 down, diaphragm 15 down, diaphragm pressing plate 16
Down, down, up, when normal operation, exhaust valve is in close state 20 spool of triple valve pressing plate shaft 17；When there is bulk gas
When generation need to be discharged, opening of the gas between buffer board 2 and buffering panel seat enters 1 top of valve body, under gas effect under liquid level
Drop, presses down floating ball 5, and floating ball 5 connect with lever 6 and moves down together, and 20 spool of triple valve is driven up to move, and opens three
Port valve 20 enters gas in diaphragm cavity by small pipeline from triple valve 20, when pressure to a certain extent after, diaphragm 15 is with dynamic pressure
Board shaft 17 moves down, so that flap 11 be driven to move down, Open valve plays a large amount of exhausts, at the end of a large amount of exhausts,
Floating ball 5 up moves under the action of water pressure, and floating ball 5 connect with lever 5 and up moves together, drives 20 spool of triple valve is past to move down
It is dynamic, the lower sealing of triple valve 20 is closed, so that gas is entered 20 top of triple valve by small pipeline from 8 diaphragm cavities, and be discharged in atmosphere,
Diaphragm 15 quickly up moves under the action of resetting the first spring 14 with pressing plate shaft 17, and flap 11 is also under the action of floating ball 5
It quickly up moves, plays the purpose of rapid-closure damper；Also it can satisfy the purpose of repetition exhaust.
Embodiment 6:
Termination of pumping suction condition (a large amount of air-breathings of negative pressure in managing)
As shown in fig. 7, buffer board 2 is down, floating ball 5 down, flap 11 down, diaphragm 15 up, diaphragm pressing plate 16 up,
Up, 20 spool of triple valve is up for pressing plate shaft 17；When gas is negative pressure in water pump termination of pumping pipe, gas passes through flap from air inlet
11 enter with the opening of sealing ring 12, and the opening using buffer board 2 and valve body 1 enters in pipeline, play supplement manage in gas
Balance the effect of pressure, it is ensured that the normal water supply of waterline.
Claims (10)
1. a kind of lower buffer compartment membrane composite air inlet and exhaust valve, including the valve body (1) and valve deck by the affixed composition main valve chamber of bolt
(19), the main valve chamber is divided into interconnected floating ball chamber and cushion chamber, feature by the buffering panel seat in valve body (1) and exists
In the exhaust valve further includes buffer gear, the thick stick that auxiliary reset mechanism is arranged and sets gradually from bottom to top in main valve chamber
Bar floating ball mechanism and primary seal mechanism, the auxiliary reset mechanism are connect with primary seal mechanism, and the primary seal mechanism is set
Set the exhaust ports on main valve chamber top.
2. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 1, which is characterized in that the primary seal
Mechanism include with the flap (11) of exhaust outlet face setting, be mounted on exhaust ports to limit and the anti-valve petal shelf (10) blown with
And the sealing ring (12) to realize sealing with flap (11), the upper axis of the flap (11) are connect with auxiliary reset mechanism,
Lower axle is connect with lever and floating mechanism, and the micro row of connection floating ball chamber and ambient atmosphere is equipped in the lower axle of the flap (11)
Stomata (24).
3. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 2, which is characterized in that the auxiliary is multiple
Position mechanism is arranged above exhaust outlet, including bonnet, (18), the lower valve body (25) being fixed on valve deck (19), the first spring
(14) and pressing plate shaft (17), the bonnet, (18) and lower valve body (25) (25) form a cavity, which passes through pressing diaphragm
The diaphragm (15) that plate (16) clamps is divided into top diaphragm cavity and lower cavity, and the pressing plate shaft (17) upper end is embedded in bonnet,
(18) in the mounting groove at the top of, lower end, which passes through diaphragm (15) and slots, is inserted into the upper axis of flap (11), first spring
(14) it is arranged in lower cavity, the upper end is connect with diaphragm pressing plate (16), and lower end is connect with lower valve body (25) bottom.
4. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 3, which is characterized in that the lever is floating
Ball machine structure includes floating ball (5), L shape connector (28), lever (6), the triple valve (20) being embedded in valve deck (19) and fixes
On floating ball cavity wall and bottom has the U-shaped liner (27) of limbers (26), and the floating ball (5) is placed in U-shaped liner
(27) in, and inside offers installation through-hole, is revolved with the sealing of L shape connector (28) by screw thread at the top of the installation through-hole
Close envelope, the L shape connector (28) are equipped in the contact position with gas vent (24) micro on the lower axle bottom surface of flap (11)
To the rubber seal seat (8) sealed, the interconnecting piece of the lever (6) long end and L shape connector (28) passes through the first pin shaft
(7) rotation connection, short end are connect with the spool of triple valve (20), and the second pivot pin (21) are arranged at fulcrum and form lever knot
Structure, described (20) three air flues of triple valve are connected to floating ball chamber, outside atmosphere and diaphragm cavity respectively, to realize diaphragm cavity
Respectively with the on-off of floating ball chamber and outside atmosphere.
5. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 4, which is characterized in that the buffer
Structure includes buffer board (2), second spring (3) and buffer shaft (22), and the head of the buffer shaft (22) is boss type, bottom
Limit plate is installed by bolt in end, and the buffer board (2) is set in buffer shaft (22) head and can move up and down, described
Second spring (3) be set in buffer shaft (22) head, the upper end is connect with the lower surface of U-shaped liner (27), lower end and buffering
Plate (2) connection, to realize the reset of buffer board (2), the bottom of the tail portion insertion installation through-hole of the buffer shaft (22) is solid
Fixed, floating ball (5) bottom and U-shaped liner (27) contact position is equipped with cushion (4).
6. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 4, which is characterized in that the triple valve
It (20) include the threeway valve seat of the lower valve body (202), spool (203) and setting of lower openings in lower valve body (202)
(207), the first air flue (2001) to be connected to lower valve intracoelomic cavity Yu floating ball chamber, institute are equipped in the threeway valve seat (207)
It is opened up in the lower valve body (202) stated to be connected to lower valve intracoelomic cavity with the second air flue (2002) of diaphragm cavity and to be connected to down
The third air flue (2003) of body cavity and outside atmosphere, the spool (203) middle part are equipped with annular protrusion, the annular protrusion
It is arranged in lower valve intracoelomic cavity and can be moved up and down in lower valve intracoelomic cavity, the spool (203) lower end sequentially passes through
It is connect behind first air flue (2001) and threeway valve seat (207) bottom with the short end of L shape connector (28), when annular protrusion is positioned at upper
When portion position, the second air flue (2002) is connected to by lower valve intracoelomic cavity with the first air flue (2001), when annular protrusion is located at lower part
When position, the second air flue (2002) is connected to by lower valve intracoelomic cavity with third air flue (2003).
7. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 6, which is characterized in that the triple valve (20)
Further include the upper valve body (201) of lower openings, the third spring (205) being arranged in upper valve intracoelomic cavity and gland (204) and
The lower part of upper valve body (201) is inserted on the adjusting bolt (206) being arranged on upper valve body (201), the lower valve body (202) top
Closed upper valve intracoelomic cavity, third spring (205) upper end and the adjusting bolt for protruding into upper valve intracoelomic cavity are formed in opening
(206) bottom end connects, and lower end is connect with gland (204), and the spool (203) upper end passes through lower valve body (202) top and protrudes into
It is connect after upper valve intracoelomic cavity with gland (204).
8. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 1, which is characterized in that the exhaust valve into
The first water flowing of row, that is, when realizing a large amount of exhausts:
Buffer board (2), floating ball (5) and flap (11) are respectively positioned on lower position, diaphragm (15), diaphragm pressing plate (16), pressing plate shaft
(17) and the spool of triple valve (20) is respectively positioned on upper position, and diaphragm cavity is connected to outside atmosphere, when first water flowing, pipeline
In bulk gas the gap between panel seat buffered by buffer board (2) and valve body up flow, at this point, buffer board (2) passes through the
Two springs (3) are in maximum opening, and gas is discharged into outside atmosphere from the exhaust outlet at flap (11) and sealing ring (12), from
And realize a large amount of exhausts；
When a large amount of exhausts close to an end, water is to moment in main line:
Buffer board (2) is in the closed position, and the spool of floating ball (5), flap (11) and triple valve (20) is respectively positioned on lower position,
Diaphragm (15), diaphragm pressing plate (16) and pressing plate shaft (17) are respectively positioned on upper position, at the end of a large amount of exhausts, a large amount of water punching
Enter in valve body (1), when by buffer board (2), buffer board (2) moves up under the action of water flow, when arrival buffer shaft
(22) when the limit of boss, the aperture between buffer board (2) and buffering panel seat reduces, thus slowly enter water in valve body (1),
Floating ball (5) slowly moves up under the buoyancy of water, prevents water spray phenomenon；
Terminate moment in first a large amount of exhausts:
Diaphragm (15), diaphragm gland (16), pressing plate shaft (17) are in upper position, floating ball (5), flap (11) and triple valve
(20) spool is respectively positioned on lower position, at this point, floating ball (5) floats, seal receptacle (8) withstands the lower axle of flap (11) to moving up
Dynamic, so that flap (11) closes exhaust outlet, the spool of triple valve (20) moves down under the action of the spring, makes diaphragm cavity and outside
Atmosphere to close exhaust valve, and buffers pressing plate (2) and moves down under the action of spring (3).
9. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 1, which is characterized in that when normal operation,
Exhaust valve is in close state, then is had:
The spool of buffer board (2) and triple valve (20) is respectively positioned on lower position, floating ball (5), flap (11), diaphragm (15), diaphragm
Pressing plate (16) and pressing plate shaft (17) are respectively positioned on upper position；
When have a small amount of gas need to be discharged carry out micro exhaust when, a small amount of gas from buffer board (2) with buffer panel seat between opening from
Cushion chamber enters floating ball chamber top, and a small amount of gas effect reduces floating ball (5) buoyancy, and floating ball (5) and seal receptacle (8) are micro together
Sink, at this point, generating gap, minimum gas between the micro gas vent (24) at the lower axle bottom surface of flap (11) and seal receptacle (8)
From micro gas vent (24) be discharged, complete micro exhaust, after minimum gas is drained, floating ball (5) under the action of water buoyancy to
Upper movement closes the gap between the micro gas vent (24) at seal receptacle (8) and the lower axle bottom surface of flap (11), closes micro row
Gas, and then carry out repeating micro exhaust when occurring extra a small amount of gas again；
When normal operation, which occurs largely getting angry in the middle, to be largely vented:
It is intracavitary that bulk gas from cushion chamber enters floating ball, and liquid level declines under gas effect, and floating ball (5) is made to sink, and drives lever
(6) it is up moved with the spool of triple valve (20), enters the compressed gas of floating ball chamber in diaphragm cavity, diaphragm (15) band dynamic pressure plate
Axis (17) moves down, and drives flap (11) to move down and opens exhaust outlet, is largely vented, at the end of a large amount of exhausts,
Floating ball (5) moves up under the action of water buoyancy, and the spool of triple valve (20) is driven to move down, and passes through gas from diaphragm cavity
Piping enters triple valve (20) top and is discharged in outside atmosphere, and diaphragm (15) and pressing plate shaft (17) are in the first spring (14)
It is quickly moved up under effect, flap (11) also quickly up moves under the action of floating ball (5), closes exhaust outlet, full simultaneously
The multiple a large amount of exhausts of lumping weight.
10. a kind of lower buffer compartment membrane composite air inlet and exhaust valve according to claim 1, which is characterized in that when the exhaust valve
When in termination of pumping suction condition:
Buffer board (2), floating ball (5) and flap (11) are respectively positioned on lower position, diaphragm 15 up, diaphragm (15), diaphragm pressing plate
(16), the spool of pressing plate shaft (17) and triple valve (20) is respectively positioned on upper position, at this point, gas enters from exhaust outlet, then passes through
The gap crossing buffer board (2) and buffering between panel seat enters in main line, supplements gas in main line and prevents negative pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532504.0A CN110173577B (en) | 2019-06-19 | Lower buffer diaphragm composite type air inlet and outlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532504.0A CN110173577B (en) | 2019-06-19 | Lower buffer diaphragm composite type air inlet and outlet valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173577A true CN110173577A (en) | 2019-08-27 |
| CN110173577B CN110173577B (en) | 2024-05-03 |
Family
ID=
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734828A (en) * | 2019-12-18 | 2020-10-02 | 株洲南方阀门股份有限公司 | Sewage air valve preventing sewage leakage |
| CN112406382A (en) * | 2020-11-24 | 2021-02-26 | 河南职业技术学院 | Hand wetting device for checking bank note and bill |
| CN113847456A (en) * | 2021-09-17 | 2021-12-28 | 西安航天动力研究所 | Double-diaphragm gas explosion isolating valve |
| CN114081348A (en) * | 2021-11-19 | 2022-02-25 | 镇江杰欣厨具有限公司 | Sealed anti-overflow strengthened glass pot cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734828A (en) * | 2019-12-18 | 2020-10-02 | 株洲南方阀门股份有限公司 | Sewage air valve preventing sewage leakage |
| CN112406382A (en) * | 2020-11-24 | 2021-02-26 | 河南职业技术学院 | Hand wetting device for checking bank note and bill |
| CN112406382B (en) * | 2020-11-24 | 2022-05-17 | 河南职业技术学院 | Hand wetting device for checking bank note and bill |
| CN113847456A (en) * | 2021-09-17 | 2021-12-28 | 西安航天动力研究所 | Double-diaphragm gas explosion isolating valve |
| CN113847456B (en) * | 2021-09-17 | 2023-06-27 | 西安航天动力研究所 | Double-diaphragm gas explosion isolation valve |
| CN114081348A (en) * | 2021-11-19 | 2022-02-25 | 镇江杰欣厨具有限公司 | Sealed anti-overflow strengthened glass pot cover |
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