CN206361156U - A kind of vapour-pressure type acceleration switching valve - Google Patents
A kind of vapour-pressure type acceleration switching valve Download PDFInfo
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- CN206361156U CN206361156U CN201621342986.1U CN201621342986U CN206361156U CN 206361156 U CN206361156 U CN 206361156U CN 201621342986 U CN201621342986 U CN 201621342986U CN 206361156 U CN206361156 U CN 206361156U
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Abstract
The utility model is related to a kind of vapour-pressure type acceleration switching valve, including valve body and source of the gas two large divisions, and wherein valve body is made up of shell, central shaft, cylinder, front and rear seal assembly, ozzle etc., and source of the gas is made up of seal gas tank and its attached valve, pipeline etc..When the two-position four-way valve for controlling source of the gas flow direction is in off-position, the front side inflation rear side of cylinder is deflated, and two groups of seal assemblies before and after cylinder-pressing, valve is closed；Conversely, when controlling two-position four-way valve powered, the rear side inflation front side of cylinder is deflated, and valve is opened.The utility model is mainly used in sub- transonic and supersonic wind tunnel, uses valve opening or shut-in time to be not more than 1s as quick valve；Annual open and close number of times 1.5 ten thousand times, 1 year time between overhauls(TBO), service life 10 years.
Description
Technical field
The utility model is related to a kind of vapour-pressure type acceleration switching valve, especially a kind of wind-tunnel compressed air controlling switch valve,
Belong to valve field.
Background technology
Sub- is the high-speed wind tunnel that velocity interval is ＜ M≤4.5 of Mach number 0.4 across super wind-tunnel, and typical Asia is across super wind-tunnel knot
Structure is made up of source of the gas, main valve, quick valve, pressure regulator valve, cup, jet pipe, test section, outlet etc., and such as accompanying drawing 6 is illustrated.During experiment, gas
Compressed air in source enters cup rectification after main valve → quick valve → pressure regulator valve, is regulated the speed by jet pipe, in test section
Discharged after interior experiment by outlet.There are some wind-tunnel to integrate the function of quick valve and pressure regulator valve in addition, by a rapid pressure adjusting valve
The function of fast opening and closing and pressure regulation is realized, because its content is unrelated with the utility model, be will not be repeated here.
Along airflow direction, it is main valve, quick valve and pressure regulator valve to play isolation source of the gas with the valve that wind-tunnel is acted on.Main valve
Effect is to close source of the gas, prevents the gas in source of the gas from leaking, and is characterized in good seal performance, and switching speed is slow, on-off times
Few, general ball valve, stop valve or butterfly valve using favorable sealing property is as main valve, when festivals or holidays stopping production, wind-tunnel are overhauled
Wait and close, be in open mode all the time in the day-to-day test and set-up procedure of wind-tunnel；The effect of pressure regulator valve is opened by regulation
Pressure before degree adjustment cup and jet pipe is stablized relatively all the time, so that stable, the general structure type of air velocity and flow field
For butterfly plate formula, cone bucket type, slit etc., it is characterized in that sealing property is very poor or without sealing function, only makes as aperture regulation
With；The effect of quick valve was quickly opened in on-test, quick closedown during off-test, in the daily pilot production of wind-tunnel
During be closed all the time, isolation source of the gas and wind-tunnel, is one of the most used equipment of wind tunnel test.Quick valve
Feature is that switch can also be closed rapidly, in the case of unexpected dead electricity automatically.
As modern advanced wind-tunnel develops towards higher test efficiency and more test number (TN)s, use in the year of quick valve
The frequency can bear considerably beyond general valve year on-off times the limit.Quick valve is opened with reference to wind tunnel test
Rapid, dead electricity quick closing valve, the requirement switched repeatedly are closed, a kind of acceleration switching valve conduct of vapour-pressure type is targetedly proposed herein
Wind-tunnel quick valve is used.
Utility model content
The purpose of this utility model is the above-mentioned deficiency for overcoming prior art there is provided a kind of vapour-pressure type acceleration switching valve,
Used applied to sub- transonic and supersonic wind tunnel as quick valve, adapt to very frequently quick open and close operating mode.
Above-mentioned purpose of the present utility model is achieved by following technical solution：
A kind of vapour-pressure type acceleration switching valve, including valve body, source of the gas and source of the gas control loop are provided；
The source of the gas is used to provide the gas needed for valve body switch；
The source of the gas control loop is used for the flow direction for switching source gas；
The valve body includes shell, preceding seal assembly, rear seal assembly, cylinder, central shaft；
Shell includes the interior central tube that the housing of both ends open and the stage casing of enclosure interior are fixed, and interior central tube cylinder bottom has
Opening, opening is matched with the rear end size of central shaft, and airway is set between opening and outer surface of outer cover；
Preceding seal assembly includes outer ring and inner ring, and outer ring is matched with the upstream open end of case body, and inner ring is consolidated with outer ring
Fixed connection, the opening of inner ring is matched with the front end size of central shaft, and inner ring has through hole, and outer ring has and the through hole of inner ring is communicated
Airway, the front end face of outer ring and inner ring is used as working medium inlet；
Seal assembly includes platen afterwards, and platen is fixed and clamped the openend of in shell central tube；
Central shaft is fixed in preceding seal assembly inner ring and shell between central tube opening；The middle part of central shaft is piston
Disk, central shaft front end has the first stomata, and central shaft has the second stomata, the first stomata and the close to the position of piston plate front end
It is hollow gas passage between two stomatas；First stomata is connected with the through hole of preceding seal assembly inner ring；Center shaft rear end has
3rd stomata, central shaft has the 4th stomata close to the position of piston back-end disk, is hollow between the 3rd stomata and the 4th stomata
Gas passage；3rd stomata is connected with outer shell barrel bottom opening；
Cylinder includes outer sleeve and cylinder inner cylinder, and the cylinder inner cylinder is arranged on center shaft, it is possible to moved along central shaft
Dynamic, the piston plate of central shaft is as the piston of cylinder, and cylinder inner cylinder is divided into forward and backward air chamber through piston plate；When needing valve body
When, the airway of the source of the gas control loop control premenstrual seal assembly of source gas enters the stomata of central shaft first, through second
Stomata enters the preceding air chamber of cylinder, and the rear gas chamber of cylinder communicates with air, and cylinder is moved forward, and the front end of outer sleeve is close before compressing
Sealing assembly outer ring, seal assembly platen after the rear end of outer sleeve is compressed, the outer sleeve of cylinder and the interior central tube of shell form close
Seal structure, working media can not pass through the valve body；When needing to open valve body, the source of the gas control loop controls source gas
Airway through shell enters the stomata of central shaft the 3rd, enters the rear gas chamber of cylinder through the 4th stomata, the preceding air chamber of cylinder with it is big
Gas phase lead to, cylinder is moved rearwards by, the premenstrual seal assembly access switch valve of working media, by preceding seal assembly and after seal assembly
Between space, the space that is formed between the interior central tube of the outer sleeve of cylinder and shell, flowed out by case body rear open end
Switch valve.
The beneficial effect of the utility model compared with prior art is：
(1) vapour-pressure type acceleration switching valve of the present utility model, main moving component is adapted under the cooperation of fog lubrication
The operating mode of open and close, annual open and close number of times 1.5 ten thousand times, 1 year time between overhauls(TBO), service life 10 years repeatedly.With can
High, the advantage of service life length by property；
(2) vapour-pressure type acceleration switching valve of the present utility model, set source of the gas two-position four-way valve state be dead electricity after from
It is dynamic to close valve, it is ensured that valve can be also closed under unexpected situation, it is safe；
(3) vapour-pressure type acceleration switching valve of the present utility model, sealing source of the gas is using in the most commonly used cleaning of wind tunnel test
Calm the anger (pressure rating 2.5MPa), even and if when blanket gas has the fortuitous events such as a small amount of leakage to occur, source of the gas also can be by
Rapid supplement, with blanket gas source economy easily advantage；Originated using air pressure as the sealed motive force of valve, even if sealing
Gas has a small amount of leakage also not pollute wind-tunnel, reduces valve inner requirement sealed to blanket gas, has the advantages that cleaning；
(4) vapour-pressure type acceleration switching valve of the present utility model, is originated using air pressure as the sealed motive force of valve, Neng Gouman
Sufficient valve opening or shut-in time are not more than 1s requirement, have the advantages that to be swift in motion；
(5) vapour-pressure type acceleration switching valve of the present utility model, the buffer unit that cylinder interior is set can either safety action
It is rapid effectively to prevent the shock of cylinder and piston again, with the reliable advantage that operates steadily；
(6) vapour-pressure type acceleration switching valve of the present utility model, the outer sleeve of cylinder be solely subjected to the radial load of working media and
Axial force is not subject to, so as to substantially reduce the energy needed for controlled valve, has the advantages that blanket gas pressure requirements are low.
(7) forward and backward sealing gasket of the present utility model is basic only by normal pressure, and it is tight with shell to be compacted disk again in structure
Hard-pressed bale is wrapped, and is eliminated the potential faults that sealing ring is easily blown away by air-flow, is added the durability of sealing gasket.
Brief description of the drawings
Fig. 1 is main assembly of the present utility model and valve body structure schematic diagram, and valve is closed；
Fig. 2 is the valve body structure schematic diagram under valve wide open state；
Fig. 3 is that preceding seal assembly position flows to schematic diagram in valve opening or turn-off transient air-flow, before bold portion is
Seal assembly；
Fig. 4 is that rear seal assembly position flows to schematic diagram in valve opening or turn-off transient air-flow, after bold portion is
Seal assembly；
Fig. 5 is the structural representation of cylinder and central shaft, it is illustrated that be valve-closed state；
Fig. 6 temporarily rushes the sub- structure composition schematic diagram across super wind-tunnel of formula to blow under typical.
Embodiment
The utility model provides a kind of vapour-pressure type acceleration switching valve, such as Fig. 1 signals, including valve body and the big portion of source of the gas two
Divide, the representation valve body in top half dotted line frame, the representation source of the gas in the dotted line frame of the latter half, what Fig. 1 was represented is
Valve-closed state, Fig. 2 represent for valve open mode.Wherein the feature of valve body includes shell (1), preceding seal assembly
(2.0), rear seal assembly (3.0), cylinder (4.0), central shaft (5.0), rectification tail cone (6), ozzle (7,8) etc.；The spy of source of the gas
Levy including two-position four-way valve (W1), oil sprayer (W2), check valve (W3), stop valve (W4), pressure-reducing valve (W5), seal gas tank
(W6), safety valve (W7), pressure gauge (W8), gs-oil separator (W9) etc..When two-position four-way valve (W1) is in off-position, on
Play pipe joint (7) is connected with seal gas tank (W6), and downstream pipe joint (8) is connected with air, the left side right side with pressure of cylinder (4.0)
Side compresses preceding seal assembly (2.0) and rear seal assembly (3.0) without pressure, cylinder (4.0), and valve is closed；Conversely, working as
When controlling two-position four-way valve (W2) powered, such as Fig. 2 signals, the right side left side with pressure of cylinder (4.0) is without pressure, and cylinder (4.0) is mobile
To right side, valve is in open mode, and working media is flowed by the outside cavity between shell (1) of cylinder (4.0) by left side
To the right.The clean compressed air of seal gas tank (W6) is derived from calms the anger in wind-tunnel, is omitted in pipeline and type of attachment figure.
The characteristics of two-position four-way valve (W2) of setting, closes valve in the power-off state, even so as to ensure that in accident
In the case of the failure of dead electricity, valve also can quick closedown, it is ensured that the security of wind tunnel test.
Cylinder (4.0) has collectively constituted cylinder-piston arrangement with central shaft (5.0), by seal gas tank (W6)
Compressed air-driven cylinder (4.0) is moved, and seal assembly (2.0,3.0) realizes sealing before and after compressing.
Such as Fig. 3 signals, the feature of preceding seal assembly (2.0) includes fastening bolt (2.1), stop washer (2.2), preceding compression
Disk (2.3), preceding sealing gasket (2.4).Preceding compression plate (2.3) is the pan for the boss shape for having an inner hollow spoke, preceding
Sealing gasket (2.4) is the moderate oil resistant rubber product of hardness, compression plate (2.3) and preceding sealing gasket before fastening bolt (2.1) is compressed
(2.4), it is fixed on shell (1), stop washer (2.2) prevents fastening bolt (2.1) from loosening.
Such as Fig. 4 signals, the feature of rear seal assembly (3.0) includes fastening bolt (3.1), stop washer (3.2), rear compression
Disk (3.3), rear sealing gasket (3.4).Compression plate (3.3) is the pressing plate of flange shape with groove afterwards, and rear sealing gasket (3.4) is hard
The moderate oil resistant rubber product of degree, compression plate (3.3) and rear sealing gasket (3.4) after fastening bolt (3.1) is compressed are fixed on shell
(1) on, stop washer (3.2) prevents fastening bolt (3.1) from loosening.
As Fig. 5 signal, cylinder (4.0) include front air cylinder lid, exhaust hood lid and cylinder barrel；Front air cylinder lid (4.1~4.9)
By jackscrew (4.1), spring (4.2), steel ball (4.3), fastening bolt (4.4), compression plate (4.5), sealing ring (4.6), front air cylinder
Cover (4.7), axle sleeve (4.8), throttling jackscrew (4.9) composition；Exhaust hood lid (4.11~4.19) is by jackscrew (4.11), spring
(4.12), steel ball (4.13), fastening bolt (4.14), compression plate (4.15), sealing ring (4.16), front air cylinder lid (4.17), axle
Cover (4.18), throttling jackscrew (4.19) composition；Cylinder barrel is made up of outer sleeve (4.21), cylinder inner cylinder (4.22), rib (4.23).
Monoblock cast or the cylinder barrel (4.21~4.23) being welded to form, and preceding gasket seal (4.10) and rear gasket seal
(4.20).The feature of non-expressed intact also includes front air cylinder lid (4.1~4.9) and exhaust hood lid (4.11~4.19) in accompanying drawing
Connection with cylinder inner cylinder (4.22) is tightened by bolt (not shown), and bolt looseness is prevented by stop washer (not shown).
The feature of non-expressed intact also includes being connected by flat key between outer sleeve (4.21) and shell (1) in accompanying drawing, defines cylinder
(4.0) do not have the free degree in rolling direction.
Such as Fig. 1 and Fig. 5 signals, the feature of central shaft (5.0) includes preceding closure (5.1) and preceding sealing ring (5.2), center
Axostylus axostyle (5.3) and sealing ring (5.4), rear closure (5.6) and increasing back sealing ring (5.5).Central shaft (5.3) is piston-shaped for its
The hollow hollow shaft in stage casing closing two ends, the cavity of front side by preceding closure (5.1) and preceding sealing ring (5.2) sealing, after
The cavity of side is sealed by rear closure (5.6) and increasing back sealing ring (5.5).Central shaft (5.3) level is erected at shell (1)
Between centre bore and preceding compression plate (2.3), sealed with the internal face of cylinder inner cylinder (4.22) using sealing ring (5.4), front side
Internal cavities are connected by the internal cavities of preceding platen (2.3) with upstream pipe joint (7), and the internal cavities of rear side pass through shell
(1) internal cavities are connected with downstream pipe joint (8).
Illustrate as shown in Figure 1, Figure 2, because the outer sleeve (4.21) of cylinder (4.0) is solely subjected to the radial load of working media without holding
By axial force, so as to substantially reduce the energy needed for controlled valve, the pressure of blanket gas can be down to 2MPa, using in wind-tunnel
Calm the anger and can serve as blanket gas source.
In valve the flow direction of working media be from left to right, in valve opening or the moment that will be closed, as shown in figure 3,
Now airflow function substantially can be considered normal pressure in the power of preceding sealing gasket (2.4), the preceding sealing gasket (2.4) and preceding from structure
Compression plate (2.3) is tightly wrapped with shell (1), and sealing gasket (2.4) is not easy to be blown out by air-flow before institute；Similarly, such as accompanying drawing 4
Shown, the gas load of rear sealing gasket (3.4) substantially can be considered normal pressure, in structure and by rear compression plate (3.3) and outside
Shell (1) is tightly wrapped, and sealing gasket (3.4) is also not easy to be blown out by air-flow after institute.While front and rear sealing gasket (2.4,3.4) is originally
The rigidity of body can be substantially reduced, and give full play to the excellent rebound performance of quality of rubber materials.This structure design integrally improves close
The service life of packing (2.4,3.4).
Two axle sleeves (4.8,4.18) before and after cylinder (4.0) employ the oil-free lubrication material of edge polytetrafluoroethylene (PTFE) in brass
Material, employs the dynamic sealing device of suitable type frequently reciprocating between cylinder (4.0) and the kinematic pair of central shaft (5.0)：It is such as close
Seal ring (4.6,4.16) employs V-shaped seal ring, and sealing ring (5.4) employs O-ring seal, then the mist of oil of fitted seal gas moistens
Sliding effect, moving component can bear the operating mode of frequent open and close.
Buffer unit is respectively provided with inside the front and rear cylinder cap of cylinder (4.0), makes the acceleration and deceleration process of cylinder (4.0) more
Steadily, and accelerator is fast, it is that one-level accelerates buffering；Moderating process is slow, is double reduction buffering.Such as accompanying drawing 5, to illustrate the right side
Cylinder chamber's exhaust of side, cylinder chamber's inflation example in left side, the normal exhaust process of right cylinder room is from central shaft (5.3)
On two macropores up and down be expelled directly out, one end before cylinder (4.0) moves to terminal to the left apart from when, central shaft
(5.3) macropore on is blocked, and gas is forced to flow into macropore from the aperture on exhaust hood lid (4.17) top, and the aperture of bottom exists
Turn into check valve in the presence of jackscrew (4.11), spring (4.12), steel ball (4.13), gas can not flow out, form primary speed-down
Buffering；Before cylinder (4.0) continues to hit terminal at once to left movement, the air-flow of exhaust hood lid (4.17) top aperture is difficult
Ground is between gap, and formation double reduction is buffered.Similarly, inflated with the cylinder chamber for illustrating right side, cylinder chamber's exhaust in left side is shown
The gas of macropore enters simultaneously from two apertures up and down of exhaust hood lid (4.17) in example, central shaft (5.3), forms one-level and delays
Punching accelerates, when cylinder head (4.17), which moves right macropore, to be no longer closed, and gas directly enters right cylinder room, shape from macropore
Into normal acceleration.The buffer unit of setting, though the movement velocity of moving component is fast, acceleration and deceleration process is steady, improves fortune
Dynamic component bears the ability of frequent open and close operating mode.
The utility model uses air pressure for power source, and the cylinder in driving valve body drives outer sleeve motion, before moving to
During end, two seals pad realizes that valve is closed before and after outer sleeve is compressed；Outer sleeve and gasket seal point when moving to rear end
From realizing valve opening.Power source in the most commonly used cleaning of wind tunnel test using calming the anger (pressure rating 2MPa), and source is economical
It is convenient；The component part of source of the gas is using conventional outsourcing piece, it is easy to changes and safeguards；The state of source of the gas two-position four-way valve is set to lose
Automatic-closing valve after electric, it is ensured that wind-tunnel safety is also ensure that under unexpected situation；Gas flowing in valve body
Direction causes sealing gasket to be in leeward state, prevents from being also beneficial to play close in damage, structure by blowing repeatedly for pipeline gas
The good rebound effect of packing rubber, so as to improve the service life of sealing gasket；The axle sleeve of cylinder is used in based on brass
Inlay the oil-free lubrication material of polytetrafluoroethylplastic plastic, the dynamic sealing of cylinder and axle uses V-shaped seal ring, cylinder and piston it is dynamic close
Envelope uses O-ring, then coordinates the fog lubrication of source of the gas, can effectively improve the service life of piston and cylinder.
Vapour-pressure type acceleration switching valve of the present utility model, is mainly used in sub- transonic and supersonic wind tunnel and is used as quick valve,
Very frequently quick open and close operating mode is adapted to, the specific scope of application is：Source of the gas is clean compressed air, pressure rating
2.5MPa；Valve body nominal diameter DN200~DN2600, the working media of adaptation is clean compressed air, pressure rating 2.5MPa,
Valve opening or shut-in time are not more than 1s；Annual open and close number of times 1.5 ten thousand times；1 year time between overhauls(TBO), service life 10
Year.
It is described above, the only optimal embodiment of the utility model, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.
The content not being described in detail in the utility model specification belongs to the known technology of professional and technical personnel in the field.
Claims (10)
1. a kind of vapour-pressure type acceleration switching valve, it is characterised in that including valve body, source of the gas and source of the gas control loop；
The source of the gas is used to provide the gas needed for valve body switch；
The source of the gas control loop is used for the flow direction for switching source gas；
The valve body includes shell (1), preceding seal assembly (2.0), rear seal assembly (3.0), cylinder (4.0), central shaft
(5.0)；
Shell (1) includes the interior central tube that the housing of both ends open and the stage casing of enclosure interior are fixed, and interior central tube cylinder bottom has
Opening, opening is matched with the rear end size of central shaft (5.0), and airway is set between opening and outer surface of outer cover；
Preceding seal assembly (2.0) includes outer ring and inner ring, and outer ring match with the upstream open end of shell (1) housing, inner ring and outside
Circle is fixedly connected, and the opening of inner ring is matched with the front end size of central shaft (5.0), and inner ring has through hole, and outer ring has and inner ring
The airway that communicates of through hole, the front end face of outer ring and inner ring is used as working medium inlet；
Seal assembly (3.0) includes platen afterwards, and platen is fixed and clamped in the openend of shell (1) interior central tube；
Central shaft (5.0) is fixed between preceding seal assembly (2.0) inner ring and the interior central tube opening of shell (1)；Central shaft (5.0)
Middle part be piston plate, central shaft (5.0) front end have the first stomata, central shaft close to piston plate front end position have second
Stomata, is hollow gas passage between the first stomata and the second stomata；First stomata is logical with preceding seal assembly (2.0) inner ring
Hole is connected；Central shaft (5.0) rear end has the 3rd stomata, and central shaft has the 4th stomata close to the position of piston back-end disk, the
It is hollow gas passage between three stomatas and the 4th stomata；3rd stomata is connected with shell (1) cylinder bottom opening；
Cylinder (4.0) includes outer sleeve (4.21) and cylinder inner cylinder (4.22), and the cylinder inner cylinder (4.22) is set in central shaft
(5.0) on, it is possible to mobile along central shaft (5.0), the piston plate of central shaft (5.0) as cylinder (4.0) piston, in cylinder
Cylinder (4.22) is divided into forward and backward air chamber through piston plate；When needing valve body, the source of the gas control loop control source gas warp
The airway of preceding seal assembly (2.0) enters the stomata of central shaft (5.0) first, and the preceding air chamber of cylinder, gas are entered through the second stomata
The rear gas chamber of cylinder is communicated with air, and cylinder (4.0) is moved forward, seal assembly (2.0) before the front end of outer sleeve (4.21) is compressed
Outer ring, seal assembly (3.0) platen, the outer sleeve (4.21) and shell of cylinder (4.0) after the rear end of outer sleeve (4.21) is compressed
(1) interior central tube formation sealing structure, working media can not pass through the valve body；When needing to open valve body, the source of the gas
Airway of the control loop control source gas through shell (1) enters the stomata of central shaft (5.0) the 3rd, enters gas through the 4th stomata
The rear gas chamber of cylinder, the preceding air chamber of cylinder is communicated with air, and cylinder (4.0) is moved rearwards by, the premenstrual seal assembly of working media (2.0)
Access switch valve, by preceding seal assembly (2.0) and after space between seal assembly (3.0), cylinder (4.0) outer sleeve
(4.21) space formed between the interior central tube of shell (1), switch valve is flowed out by shell (1) housing rear open end.
2. vapour-pressure type acceleration switching valve as claimed in claim 1, it is characterised in that preceding seal assembly (2.0) also includes preceding close
Packing (2.4), the front end of shell (1) housing has an annular projection, and the outer ring of preceding seal assembly (2.0) is by preceding sealing gasket (2.4)
It is compacted to the annular projection of the front end of shell (1) housing.
3. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that rear seal assembly (3.0) includes rear close
Rear sealing gasket (3.4) is fixed on the front end of shell (1) interior central tube by packing (3.4), the platen of rear seal assembly (3.0), and
Sealing gasket internal diameter is less than in central tube inside diameter；The overcoat tube rear end of cylinder (4.0) has flange, when cylinder is run to before most
During end, sealing gasket (3.4) after the flange of overcoat tube rear end is compressed.
4. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that also including rectification tail cone (6), is set
In shell (1) central tube cylinder bottom rear end, by working media water conservancy diversion to shell (1) housing rear open end.
5. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that also including upstream pipe joint (7) and under
Play pipe joint (8), upstream pipe joint (7) is connected to the arrival end of preceding seal assembly (2.0) airway between outer ring and inner ring；Under
Play pipe joint (8) is connected to the port of export of shell (1) airway.
6. vapour-pressure type acceleration switching valve as claimed in claim 5, it is characterised in that the source of the gas control loop includes two four
Port valve (W1) and seal gas tank (W6), when two-position four-way valve (W1) is in off-position, upstream pipe joint (7) and seal gas
Tank (W6) is connected, and downstream pipe joint (8) is connected with air, and valve body is closed；When control two-position four-way valve (W2) is powered
When, upstream pipe joint (7) is connected with air, and downstream pipe joint (8) is connected with seal gas tank (W6), and valve body is opened.
7. vapour-pressure type acceleration switching valve as claimed in claim 6, it is characterised in that the clean compression of seal gas tank (W6) is empty
Gas is derived from calms the anger in wind-tunnel.
8. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that cylinder (4.0) includes front air cylinder
Lid, exhaust hood lid and cylinder barrel；
The front air cylinder cap assemblies include the first jackscrew (4.1), the first spring (4.2), the first steel ball (4.3), the first compression plate
(4.5), preceding sealing ring (4.6), front air cylinder lid (4.7), axle sleeve (4.8), first throttle jackscrew (4.9)；After front air cylinder lid (4.7)
Section is sleeved on the leading portion of central shaft (5.0) by axle sleeve (4.8), is set between the leading portion and central shaft (5.0) of front air cylinder lid (4.7)
Preceding sealing ring (4.6) is put, and is compressed by the first compression plate (4.5)；Front air cylinder lid (4.7) has the first perpendicular through hole, and first erects
First jackscrew (4.1), the first spring (4.2) and the first steel ball (4.3) are set in through hole, and the first jackscrew (4.1) passes through the first bullet
First steel ball (4.3) is pressed in the first perpendicular through hole by spring (4.2) in advance, has the on the side wall of the first perpendicular through hole steel ball position
One horizontal through hole；The position of the perpendicular through hole of first axle sleeve (4.8) correspondence first sets the second perpendicular through hole；When current air chamber starts air inlet,
First axle sleeve (4.8) second erects through hole just to the second stomata, and source gas enters through the first stomata, the second stomata, the second perpendicular through hole
Enter in the first perpendicular through hole, steel ball (4.3) is pressed into jackscrew (4.1), the first horizontal through hole is opened, before gas enters through the first horizontal through hole
Air chamber；When cylinder is moved to the position that the second perpendicular through hole and the second stomata staggers, steel ball (4.3) resilience recloses first horizontal
Through hole；Front air cylinder lid (4.7), which also has in the 3rd perpendicular through hole, the 3rd perpendicular through hole, sets first throttle jackscrew (4.9), first throttle
Jackscrew (4.9) is taper, and the length of the perpendicular through hole of regulation first throttle jackscrew (4.9) insertion the 3rd can change the 3rd perpendicular through hole
Interior air flue aperture；There is the second horizontal through hole on the side wall of 3rd perpendicular through hole so that the 3rd perpendicular through hole is communicated with preceding air chamber, works as gas
When cylinder is located at rearmost end, central shaft piston disk seal closes the second horizontal through hole；The perpendicular lead to the hole site of first axle sleeve (4.8) correspondence the 3rd is set
4th perpendicular through hole, when cylinder is located at rearmost end, the first axle sleeve (4.8) the 4th erects through hole just to the second stomata；Current air chamber enters
After gas, cylinder is moved forward, the not re-closed second horizontal through hole of central shaft piston disk, and source gas is through the first stomata and the second stomata
Between gas passage, the 4th perpendicular through hole, the 3rd perpendicular through hole, the second horizontal through hole enter preceding air chamber；When the first axle sleeve (4.8) the 4th
After perpendicular through hole and the second stomata stagger, gas does not enter back into the 4th perpendicular through hole；During exhaust, cylinder is moved rearwards by, when the first axle sleeve
After (4.8) the 4th perpendicular through holes are relative with the second stomata, the premenstrual air chamber of gas enters the second horizontal through hole, then erects through hole, the through the 3rd
Four perpendicular through holes enter the second stomata, are vented by the first stomata；
The exhaust hood lid is identical with the front air cylinder cap assemblies structure, is sleeved on the back segment of central shaft (5.0)；
The cylinder barrel includes outer sleeve (4.21), cylinder inner cylinder (4.22) and rib (4.23)；The rib (4.23) is used for will be outer
Being fixedly connected between sleeve (4.21) and cylinder inner cylinder (4.22).
9. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that the sealing including before of central shaft (5.0)
Cover (5.1), preceding sealing ring (5.2), central shaft (5.3) and sealing ring (5.4), rear closure (5.6) and increasing back sealing ring
(5.5)；
It is piston plate in the middle part of central shaft (5.3), central shaft (5.3) front end has the first stomata, piston plate front end has the
Two stomatas, are hollow gas passage between the first stomata and the second stomata；Central shaft (5.3) rear end has the 3rd stomata,
Piston back-end disk has the 4th stomata, is hollow gas passage between the 3rd stomata and the 4th stomata；Preceding closure (5.1) pressure
Before tight sealing ring (5.2) to central shaft (5.3) front end；Closure (5.6) compresses increasing back sealing ring (5.5) to central shaft afterwards
(5.3) rear end.
10. vapour-pressure type acceleration switching valve as claimed in claim 1 or 2, it is characterised in that working media and source of the gas are cleaning
Gas, pressure rating is 2.5MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342986.1U CN206361156U (en) | 2016-12-08 | 2016-12-08 | A kind of vapour-pressure type acceleration switching valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342986.1U CN206361156U (en) | 2016-12-08 | 2016-12-08 | A kind of vapour-pressure type acceleration switching valve |
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| CN206361156U true CN206361156U (en) | 2017-07-28 |
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ID=59375448
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342986.1U Active CN206361156U (en) | 2016-12-08 | 2016-12-08 | A kind of vapour-pressure type acceleration switching valve |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594294A (en) * | 2016-12-08 | 2017-04-26 | 中国航天空气动力技术研究院 | Air pressure type rapid switching valve |
| CN108760223A (en) * | 2018-08-23 | 2018-11-06 | 上海佐竹冷热控制技术有限公司 | Runner fixing device |
| CN109529434A (en) * | 2018-12-29 | 2019-03-29 | 安呈波 | A kind of fast changeable sewage filter net |
| CN113090842A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Four-way valve capable of automatically cutting off when pipe is taken off |
| CN113217653A (en) * | 2021-06-16 | 2021-08-06 | 中国科学院电工研究所 | Combined high-temperature and high-pressure valve device |
| CN113389767A (en) * | 2021-07-23 | 2021-09-14 | 中国科学院合肥物质科学研究院 | Double-acting pneumatic actuator with long-stroke large-cylinder-diameter structure and control system thereof |
| CN117990335A (en) * | 2024-04-07 | 2024-05-07 | 中国航空工业集团公司沈阳空气动力研究所 | Pressure regulating valve applied to engine power simulation wind tunnel test |
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2016
- 2016-12-08 CN CN201621342986.1U patent/CN206361156U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594294A (en) * | 2016-12-08 | 2017-04-26 | 中国航天空气动力技术研究院 | Air pressure type rapid switching valve |
| CN108760223A (en) * | 2018-08-23 | 2018-11-06 | 上海佐竹冷热控制技术有限公司 | Runner fixing device |
| CN108760223B (en) * | 2018-08-23 | 2024-04-09 | 上海佐竹冷热控制技术有限公司 | Flow passage fixing device |
| CN109529434A (en) * | 2018-12-29 | 2019-03-29 | 安呈波 | A kind of fast changeable sewage filter net |
| CN113090842A (en) * | 2021-03-30 | 2021-07-09 | 陈蕾蕾 | Four-way valve capable of automatically cutting off when pipe is taken off |
| CN113090842B (en) * | 2021-03-30 | 2022-10-28 | 安利达(山东)智控科技集团股份有限公司 | Four-way valve with automatic pipe-disconnecting function |
| CN113217653A (en) * | 2021-06-16 | 2021-08-06 | 中国科学院电工研究所 | Combined high-temperature and high-pressure valve device |
| CN113389767A (en) * | 2021-07-23 | 2021-09-14 | 中国科学院合肥物质科学研究院 | Double-acting pneumatic actuator with long-stroke large-cylinder-diameter structure and control system thereof |
| CN117990335A (en) * | 2024-04-07 | 2024-05-07 | 中国航空工业集团公司沈阳空气动力研究所 | Pressure regulating valve applied to engine power simulation wind tunnel test |
| CN117990335B (en) * | 2024-04-07 | 2024-05-31 | 中国航空工业集团公司沈阳空气动力研究所 | Pressure regulating valve applied to engine power simulation wind tunnel test |
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