CN110346094A - A kind of triple valve of air-leakage test - Google Patents
A kind of triple valve of air-leakage test Download PDFInfo
- Publication number
- CN110346094A CN110346094A CN201910646738.8A CN201910646738A CN110346094A CN 110346094 A CN110346094 A CN 110346094A CN 201910646738 A CN201910646738 A CN 201910646738A CN 110346094 A CN110346094 A CN 110346094A
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- ball
- sealing
- triple valve
- engaging
- chamber
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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
- F16K27/00—Construction of housing; Use of materials therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/224—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
Abstract
The invention belongs to triple valve technical field, specifically a kind of triple valve of air-leakage test；Including valve body, sealing ring and sealing detection ring；Engaging has sealing ring in interior first engaging slot opened up on valve body, and engaging has sealing detection ring in the second engaging slot；Annular chamber is offered in sealing detection ring, and the base end wall of annular chamber offers mounting hole, and gas cylinder is plugged in mounting hole；The bottom end of gas cylinder is provided with connecting column；The top of connecting column is connected with elastic cone by extension spring and emits, and elastic cone is emitted and is slidably arranged in gas cylinder；The upper end wall of annular chamber offers extruded hole, and sealing drum is plugged in extruded hole；It is placed with extrusion deformation ball in sealing drum, and is squeezed and deformed in ball and is filled with heat discoloration powder；Timely air-leakage test can be carried out in the junction to triple valve convenient for testing staff, and then is effectively prevented because the junction of triple valve generates gas leakage, and high temperature and high pressure gas is caused to generate leakage phenomenon in conveying.
Description
Technical field
The invention belongs to triple valve technical field, specifically a kind of triple valve of air-leakage test.
Background technique
Triple valve is common one of building block in fluid piping system, for realizing pipe-line system docking,
The circulation of fluid and the shunting of fluid.
There are three mouth, there is an outlet in bottom unlike One In and Two Out and common valve, works as inner spool three-way valve body
In different location, outlet is different, and if spool is at lower part, left and right is communicated, and if spool is at top, right outlet is plugged, left
It is logical with lower mouth.
Existing triple valve when in use, is particularly used in the triple valve of large high-temperature high pressure flue, due to three
The prolonged use of port valve, since the junction of triple valve and outer tube body is to be sealed by a seal ring effect, and then work as
When extraneous vibration or corrosion causes sealing ring to wear, high temperature and high pressure gas can be made in the junction of triple valve and outer tube body
There is a phenomenon where leaking to reveal, and then testing staff is caused to be difficult to timely quickly examine triple valve air-leak section
Maintenance is surveyed, and then influences triple valve to the safe transport of high temperature and high pressure gas.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of triple valve of air-leakage test proposed by the present invention, the present invention are main
For solving existing triple valve when in use, when extraneous vibration or corrosion cause sealing ring to wear, high temperature can be made
High pressure gas in the junction of triple valve and outer tube body there is a phenomenon where leaking to reveal, and then cause testing staff be difficult to and
When the phenomenon that being used for quickly detecting maintenance to triple valve air-leak section.
The technical solution adopted by the present invention to solve the technical problems is: the three of a kind of air-leakage test of the present invention
Port valve, including valve body, sealing ring and sealing detection ring；Offer the first engaging slot and the second engaging slot on the valve body, first
Engaging has sealing ring in engaging slot, and engaging has sealing detection ring in the second engaging slot；Annular is offered in the sealing detection ring
Chamber, and the base end wall of annular chamber offers mounting hole, and gas cylinder is plugged in mounting hole；The gas cylinder bottom end, which offers, leads
Air drain, and the bottom end of gas cylinder is provided with connecting column；The top of the connecting column is connected with elastic cone by extension spring and emits, and
Elastic cone, which emits, to be slidably arranged in gas cylinder；The upper end wall of the annular chamber offers extruded hole, and is plugged in extruded hole close
Sealed tube；It is placed with extrusion deformation ball in the sealing drum, and is squeezed and deformed in ball and is filled with heat discoloration powder；The sealing detection
Transparent seal layer is cased on the outer wall of ring, and transparent seal layer gluing, sealing is in the outer end of extruded hole；When work, by triple valve
It is mounted in high temperature and pressure circulation duct, sealing is attached by sealing ring and sealing detection ring；When high temperature and high pressure gas is logical
When crossing sealing ring leakage, high pressure gas can be entered in gas cylinder by air slot, with the continuous penetrating of high temperature and high pressure gas,
The elastic cone that original state can be made to be slidably fastened in gas cylinder is emitted to be slided up and down under the impact force of high pressure draught, and then by bullet
Property cone emit jack-up and open, the elastic cone jacked up upwards, which emits, can move in extruded hole, and then by the extruding of the setting in extruded hole
Shape-changeable ball is squeezed and deformed, and then under the motive force that elastic cone emits, and is squeezed and deformed club's extrusion deformation and is filled into extruded hole
Top, while being squeezed and deformed the heat discoloration powder filled in ball and can generate discoloration under the action of high-temperature gas；Pass through elasticity
Cone emits and is squeezed and deformed the cooperation of ball, and then testing staff can by the transparent seal layer being arranged on sealing detection ring outer wall
To observe the pigment after whether having discoloration, timely air-tightness inspection can be carried out in the junction to triple valve convenient for testing staff
It surveys, and then effectively prevents because the junction of triple valve generates gas leakage, high temperature and high pressure gas is caused to generate leakage in conveying
Phenomenon；Extrusion deformation ball after extrusion deformation can be filled into the top of extruded hole, while emit in elastic cone in high pressure gas
It can be supported to ball is squeezed and deformed under impact force, extruded hole can also be carried out under the cooperation that elastic cone emits by being squeezed and deformed ball
Sealing, so prevent high temperature and high pressure gas by extruded hole there is a phenomenon where leak.
Preferably, the elastic cone, which emits, is spliced by muti-piece sector rubber slab, and the inside of fan-shaped rubber slab offers
Expansion chamber, and the bottom end of expansion chamber offers gas collection hole；Convex column, and protrusion are provided on the outer wall of the sector rubber slab
Column is connected to expansion chamber；When work, the elastic cone of setting is emitted to be spliced to form by muti-piece sector rubber slab, is not only convenient for elastic cone
The dilatancy emitted, while elastic cone can be increased under the cooperation of convex column and emit frictional force in air slot, anti-sliding stop card
Elastic cone of the conjunction in gas cylinder, which is emitted, issues raw the phenomenon that automatically disengaging in extraneous vibration force；It is arranged simultaneously in gas collection hole and expansion
Chamber, after high temperature and high pressure gas enters gas cylinder by air slot, gas can take the lead in entering in expansion chamber by gas collection hole,
And then so that elastic cone is emitted generation dilatancy, and then the elastic cone being arranged is emitted when sealing ring leaks air lesser phenomenon, bullet
Property cone emit and can play the role of tentatively sealing；When the air pressure of gas leakage incrementally increases, the elastic cone after expansion, which emits, be will increase to crowded
The squish area for pressing hole further increases elastic cone and emits to the squeezing effect for being squeezed and deformed ball.
Preferably, the bottom end of the extruded hole is provided with curved support plate, and curved support plate is set as thermal conductive metallic material,
And curved support plate is located at the bottom end for being squeezed and deformed ball；The curved support intralamellar part offers extrusion chamber, and extrusion chamber is upper
Side wall offers engaging slot；When work, the curved support plate of setting can play the role of support to ball is squeezed and deformed, and prevent from squeezing
Compressive strain ball shakes the phenomenon that squeezing；The curved support plate of setting is in the case where elastic cone emits the cooperation with convex column simultaneously, energy
The bottom end of curved support plate is set to take the lead in generating protrusion upwards, and then enough convenient for being squeezed and deformed the extrusion deformation of ball；Arc simultaneously
When the bottom end of support plate raises upward, the gas in extrusion chamber can be made mobile to the both ends of curved support plate, and then increase arc
Support plate is supported deformed extrusion deformation ball.
Preferably, the extrusion deformation ball is to be closed and formed by elastic conducting hotting mask and transparent sealing membrane pressure, and be squeezed and deformed ball
Be internally provided with deformable cavity, and be provided on deformable cavity side wall rubber engaging ball, and rubber engaging ball be located at engaging slot just on
Side；Heat discoloration powder is filled in the rubber engaging ball；When work, after the upward deformation of extrusion deformation ball, it can make to become
The rubber engaging ball of the intracavitary setting of shape generates synchronous deformation, and then the heat discoloration powder filled in rubber engaging ball generates High Temperature Gas
It can be deformed when body, and then the heat discoloration powder after discoloration can be filled into transparent sealing film under the extruding that rubber engages ball
Lower surface, and then increase testing staff to the observing effect of heat discoloration powder；Meanwhile the rubber engaging ball of setting is in curved support
The cooperation of the engaging slot opened up on plate, when the upward protrusion of curved support plate, engaging slot can be by deformed extrusion deformation
What the rubber engaging ball in ball was fixed, prevent rubber engaging ball under the action of extruding force to the upper of transparent sealing film
Surface squeezes, and causes to be squeezed and deformed the phenomenon that producing fracture of ball.
Preferably, the deformable cavity is internally provided with support ball, and ripple elastic plate is provided in deformable cavity, and ripple bullet
Property plate one end the inner wall of deformable cavity is set, the other end is connected on the outer wall of support ball；The upper end of the ripple elastic plate
Face is provided with hyaline layer, and corrugated plating is internally provided with transparent chamber, and transparent chamber is connected to by connecting tube with rubber engaging ball；
When work, after being squeezed and deformed ball generation extrusion deformation, the internal elastic wave card being arranged can be made to generate stretcher strain, stretching becomes
The upper surface of the ripple elastic plate of shape can be such that transparent sealing film is fitted tightly on the top end wall of extruded hole, while rubber after extruding
Heat discoloration powder in glue engaging ball can be injected in transparent chamber by connecting tube, and then heat discoloration powder is enable to pass through connection
Pipe is injected in transparent chamber, heat discoloration powder can be tiled into deformable cavity by the elastic wave card after drawn expanded, into
The increase of one step is squeezed and deformed the saturating color ability of ball, further increases testing staff to the detectability of sealing detection ring.
Preferably, cavity ripple expansion plate is placed in the transparent chamber, and cavity ripple expansion plate offers gas port,
And gas port is connected to by connectivity slot with extrusion chamber；When work, when extrusion chamber both ends are filled with gas, the gas in extrusion chamber is logical
It crosses connectivity slot to enter in cavity ripple expansion plate, so that cavity ripple expansion plate is generated expansion and stretch, and then after expansion stretching
The heat discoloration powder sprayed into transparent chamber can be expressed on the inner wall of transparent chamber by cavity ripple expansion plate, be further increased transparent
Transparent effect of the chamber to heat discoloration powder；Curved support plate is set as thermal conductive metallic material simultaneously, and then makes to squeeze in extrusion chamber
Gas afterwards has certain heat, further increases the color changeable effect of heat discoloration powder.
Beneficial effects of the present invention are as follows:
1. the present invention is by setting the cooperation that ball is emitted and be squeezed and deformed by elastic cone, and then testing staff can pass through sealing
The transparent seal layer being arranged on detection ring outer wall is observed that the pigment after whether having discoloration, can be timely convenient for testing staff
Air-leakage test is carried out to the junction of triple valve, and then effectively prevent because the junction of triple valve generates gas leakage, lead
High temperature and high pressure gas is caused to generate leakage phenomenon in conveying.
2. the cooperation that the present invention is emitted by the extrusion deformation ball being arranged in elastic cone, the extrusion deformation ball after extrusion deformation can
It can be propped up ball is squeezed and deformed under the impact force of high pressure gas with being filled into the top of extruded hole, while being emitted in elastic cone
Support, extruded hole can also be sealed under the cooperation that elastic cone emits by being squeezed and deformed ball, and then prevent high temperature and high pressure gas logical
Crossing extruded hole, there is a phenomenon where leak.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings.
Fig. 1 is perspective view of the invention；
Fig. 2 is main view of the invention；
Fig. 3 is partial enlarged view at A in Fig. 2 of the present invention；
Fig. 4 is the main view of extrusion deformation ball of the invention；
Fig. 5 is the perspective view that elastic cone of the invention emits；
In figure: valve body 1, the first engaging slot 11, the second engaging slot 12, sealing ring 2, sealing detection ring 3, annular chamber 31, peace
Dress hole 32, extruded hole 33, gas cylinder 34, connecting column 35, sealing drum 36, connectivity slot 37, elastic cone emit 4, fan-shaped rubber slab 41, swollen
Swollen chamber 42, convex column 43, be squeezed and deformed ball 5, elastic conducting hotting mask 51, transparent sealing film 52, rubber engaging ball 53, support ball 54,
Curved support plate 6, extrusion chamber 61, engaging slot 62, ripple elastic plate 7, transparent chamber 71, cavity ripple expansion plate 72.
Specific embodiment
It is carried out using triple valve of Fig. 1-Fig. 5 to a kind of air-leakage test of an embodiment of the present invention as described below.
As shown in Figure 1, Figure 2 and Figure 3, the triple valve of a kind of air-leakage test of the present invention, including valve body 1, sealing
Ring 2 and sealing detection ring 3；The first engaging slot 11 and the second engaging slot 12, card in the first engaging slot 11 are offered on the valve body 1
Conjunction has sealing ring 2, and engaging has sealing detection ring 3 in the second engaging slot 12；Annular chamber 31 is offered in the sealing detection ring 3,
And the base end wall of annular chamber 31 offers mounting hole 32, and gas cylinder 34 is plugged in mounting hole 32；34 bottom end of gas cylinder
Air slot is offered, and the bottom end of gas cylinder 34 is provided with connecting column 35；The top of the connecting column 35 is connected by extension spring
It is connected to elastic cone and emits 4, and elastic cone emits 4 and is slidably arranged in gas cylinder 34；The upper end wall of the annular chamber 31 offers extruding
Hole 33, and sealing drum 36 is plugged in extruded hole 33；It is placed in the sealing drum 36 and is squeezed and deformed ball 5, and be squeezed and deformed ball 5
It is interior to be filled with heat discoloration powder；Transparent seal layer, and transparent seal layer gluing, sealing are cased on the outer wall of the sealing detection ring 3
In the outer end of extruded hole 33；When work, triple valve is mounted in high temperature and pressure circulation duct, passes through sealing ring 2 and sealing
Detection ring 3 is attached sealing；When high temperature and high pressure gas is leaked by sealing ring 2, high pressure gas can be entered by air slot
Into gas cylinder 34, with the continuous penetrating of high temperature and high pressure gas, original state can be made to be slidably fastened the bullet in gas cylinder 34
Property cone emit 4 and slided up and down under the impact force of high pressure draught, and then elastic cone is emitted into 4 jack-up and is opened, the elastic cone jacked up upwards
Emitting 4 can move in extruded hole 33, and then the extrusion deformation ball 5 of the setting in extruded hole 33 is squeezed and deformed, Jin Er
Elastic cone emits under 4 motive force, and the top for being filled into extruded hole 33 can be squeezed and deformed by being squeezed and deformed ball 5, while be squeezed and deformed ball 5
The heat discoloration powder of interior filling can generate discoloration under the action of high-temperature gas；4 are emitted by elastic cone and are squeezed and deformed matching for ball 5
It closes, and then testing staff can be observed that whether there is discoloration by the transparent seal layer being arranged on 3 outer wall of sealing detection ring
Pigment afterwards carries out air-leakage test convenient for junction of the testing staff to triple valve, and then effectively prevents because of triple valve
Junction generate gas leakage, cause high temperature and high pressure gas conveying when generate leakage phenomenon；Extrusion deformation ball 5 after extrusion deformation
Can be filled into the top of extruded hole 33, at the same elastic cone emit 4 under the impact force of high pressure gas can be squeezed and deformed ball 5 into
Row support, extruded hole 33 can also be sealed under the cooperation that elastic cone emits 4 by being squeezed and deformed ball 5, and then prevent high temperature height
There is a phenomenon where leak by extruded hole 33 for body of calming the anger.
As shown in Figure 3 and Figure 5, the elastic cone, which emits 4, is spliced by muti-piece sector rubber slab 41, fan-shaped rubber slab 41
Inside offer expansion chamber 42, and the bottom end of expansion chamber 42 offers gas collection hole；On the outer wall of the sector rubber slab 41
It is provided with convex column 43, and convex column 43 is connected to expansion chamber 42；When work, the elastic cone of setting emits 4 by muti-piece sector rubber
Offset plate 41 is spliced to form, and is not only convenient for the dilatancy that elastic cone emits 4, while can increase elasticity under the cooperation of convex column 43
Cone emit 4 air slot frictional force, prevent the elastic cone being slidably fastened in gas cylinder 34 from emitting 4 and issuing in extraneous vibration force and be born from
Dynamic the phenomenon that being detached from；It is arranged simultaneously in gas collection hole and expansion chamber 42, when high temperature and high pressure gas enters gas cylinder by air slot
After 34, gas can take the lead in entering in expansion chamber 42 by gas collection hole, and then elastic cone is made to emit 4 generation dilatancies, Jin Ershe
The elastic cone set emits 4 when sealing ring 2 leaks air lesser phenomenon, and elastic cone, which emits 4, can play the role of tentatively sealing；Work as leakage
When the air pressure of gas incrementally increases, the elastic cone after expansion, which emits 4, will increase squish area to extruded hole 33, further increase elasticity
Cone emits the squeezing effect of 4 pairs of extrusion deformation balls 5.
As shown in figure 3, the bottom end of the extruded hole 33 is provided with curved support plate 6, curved support plate 6 is set as thermally conductive gold
Belong to material, and curved support plate 6 is located at the bottom end for being squeezed and deformed ball 5；Extrusion chamber 61 is offered inside the curved support plate 6,
And the upper side wall of extrusion chamber 61 offers engaging slot 62；When work, the curved support plate 6 of setting can rise to ball 5 is squeezed and deformed
To the effect of support, prevents from being squeezed and deformed ball 5 and shake the phenomenon that squeezing；The curved support plate 6 of setting is in elastic cone simultaneously
Emit 4 and convex column 43 cooperation under, can make the bottom end of curved support plate 6 take the lead in upwards generate protrusion, and then convenient for squeeze
The extrusion deformation of shape-changeable ball 5；When the bottom end of curved support plate 6 raises upward simultaneously, gas in extrusion chamber 61 can be made to arc
The both ends of support plate 6 are mobile, and then increase being supported to deformed extrusion deformation ball 5 for curved support plate 6.
As shown in Figure 3 and Figure 4, the extrusion deformation ball 5 is formed by elastic conducting hotting mask 51 and the pressing of transparent sealing film 52,
And it is squeezed and deformed ball 5 and is internally provided with deformable cavity, and be provided with rubber engaging ball 53 on deformable cavity side wall, and rubber engages ball 53
Positioned at the surface of engaging slot 62；Heat discoloration powder is filled in the rubber engaging ball 53；When work, when extrusion deformation ball 5
After upward deformation, the rubber being arranged in deformable cavity engaging ball 53 can be made to generate synchronous deformation, and then in rubber engaging ball 53
The heat discoloration powder of filling can be deformed when generating high-temperature gas, and then the heat discoloration powder after discoloration can engage ball in rubber
It is filled into the lower surface of transparent sealing film 52 under 53 extruding, and then increases testing staff to the observing effect of heat discoloration powder；
Meanwhile the rubber of setting engages the cooperation for the engaging slot 62 that ball 53 opens up on curved support plate 6, when curved support plate 6 is upward
When expression lobes, what the rubber engaging ball 53 in deformed extrusion deformation ball 5 can be fixed by engaging slot 62, it prevents
Rubber engages ball 53 and squeezes under the action of extruding force the upper surface of transparent sealing film 52, leads to the generation for being squeezed and deformed ball 5
The phenomenon that fracture.
As shown in Figure 3 and Figure 4, the deformable cavity is internally provided with support ball 54, and ripple elasticity is provided in deformable cavity
Plate 7, and the inner wall of deformable cavity is arranged in one end of ripple elastic plate 7, the other end is connected on the outer wall of support ball 54；The wave
The upper surface of line elastic plate 7 is provided with hyaline layer, and corrugated plating is internally provided with transparent chamber 71, and transparent chamber 71 passes through connection
Pipe is connected to rubber engaging ball 53；When work, after being squeezed and deformed the generation extrusion deformation of ball 5, the internal elastic wave being arranged can be made
Card generates stretcher strain, and the upper surface of the ripple elastic plate 7 of stretcher strain can make transparent sealing film 52 be fitted tightly over extruding
On the top end wall in hole 33, while the heat discoloration powder in rubber after extruding engaging ball 53 can be injected to transparent chamber by connecting tube
In 71, and then heat discoloration powder is enable to be injected in transparent chamber 71 by connecting tube, by elastic corrugated after drawn expanded
Plate can tile heat discoloration powder into deformable cavity, further increase the saturating color ability for being squeezed and deformed ball 5, further increase inspection
Detectability of the survey personnel to sealing detection ring 3.
As shown in Figure 3 and Figure 4, cavity ripple expansion plate 72, and cavity ripple expansion plate are placed in the transparent chamber 71
72 offer gas port, and gas port is connected to by connectivity slot 37 with extrusion chamber 61；When work, when 61 both ends of extrusion chamber are filled with gas
When body, the gas in extrusion chamber 61 is entered in cavity ripple expansion plate 72 by connectivity slot 37, makes cavity ripple expansion plate 72
It generates expansion to stretch, and then expand the cavity ripple expansion plate 72 after stretching the heat discoloration powder sprayed into transparent chamber 71 can be squeezed
It is pressed on the inner wall of transparent chamber 71, further increases transparent chamber 71 to the transparent effect of heat discoloration powder；Curved support plate 6 simultaneously
It is set as thermal conductive metallic material, and then makes gas after extruding in extrusion chamber 61 that there is certain heat, further increases temperature-sensitive
The color changeable effect of color-change powder.
Specific workflow is as follows:
When work, triple valve is mounted in high temperature and pressure circulation duct, is carried out by sealing ring 2 and sealing detection ring 3
Connection sealing；When high temperature and high pressure gas is leaked by sealing ring 2, high pressure gas can enter gas cylinder 34 by air slot
Interior, with the continuous penetrating of high temperature and high pressure gas, the elastic cone that original state can be made to be slidably fastened in gas cylinder 34 emits 4 in height
It is slided up and down under the impact force of pressure gas stream, and then elastic cone is emitted into 4 jack-up and is opened, the elastic cone jacked up upwards, which emits 4, to be moved to
In extruded hole 33, and then the extrusion deformation ball 5 of the setting in extruded hole 33 is squeezed and deformed, and then emit 4 in elastic cone
Under motive force, the top for being filled into extruded hole 33 can be squeezed and deformed by being squeezed and deformed ball 5, while be squeezed and deformed the sense filled in ball 5
Warm color-change powder can generate discoloration under the action of high-temperature gas；4 are emitted by elastic cone and are squeezed and deformed the cooperation of ball 5, Jin Erjian
Survey personnel can be observed that the pigment after whether having discoloration by the transparent seal layer being arranged on 3 outer wall of sealing detection ring,
Air-leakage test is carried out convenient for junction of the testing staff to triple valve, and then effectively prevents the junction production because of triple valve
Raw gas leakage causes high temperature and high pressure gas to generate leakage phenomenon in conveying.
In the description of the present invention, it is to be understood that, term " center ", "front", "rear", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom" "inner", "outside" be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the scope of the invention.
Although the present invention be illustrated by specific embodiment, it will be appreciated by those skilled in the art that, do not departing from
In the case where the scope of the invention, various transformation and equivalent substitute can also be carried out to the present invention.In addition, being directed to particular condition or material
Material, can do various modifications to the present invention, without departing from the scope of the present invention.Therefore, the present invention is not limited to disclosed tool
Body embodiment, and should include the whole embodiments fallen within the scope of the appended claims.
Claims (6)
1. a kind of triple valve of air-leakage test, it is characterised in that: including valve body (1), sealing ring (2) and sealing detection ring (3)；
The first engaging slot (11) and the second engaging slot (12) are offered on the valve body (1), engaging has sealing in the first engaging slot (11)
Ring (2), the interior engaging of the second engaging slot (12) have sealing detection ring (3)；Annular chamber is offered in the sealing detection ring (3)
(31), and the base end wall of annular chamber (31) offers mounting hole (32), and is plugged with gas cylinder (34) in mounting hole (32)；It is described
Gas cylinder (34) bottom end offers air slot, and the bottom end of gas cylinder (34) is provided with connecting column (35)；The connecting column (35)
Top elastic cone be connected with by extension spring emit (4), and elastic cone emits (4) and is slidably arranged in gas cylinder (34)；It is described
The upper end wall of annular chamber (31) offers extruded hole (33), and is plugged with sealing drum (36) in extruded hole (33)；The sealing drum
(36) it is placed in and is squeezed and deformed ball (5), and be squeezed and deformed in ball (5) and be filled with heat discoloration powder；The sealing detection ring (3)
Outer wall on be cased with transparent seal layer, and transparent seal layer gluing, sealing is in the outer end of extruded hole (33).
2. a kind of triple valve of air-leakage test according to claim 1, it is characterised in that: the elastic cone, which emits (4), is
It is spliced by muti-piece sector rubber slab (41), the inside of fan-shaped rubber slab (41) offers expansion chamber (42), and expansion chamber
(42) bottom end offers gas collection hole；It is provided with convex column (43) on the outer wall of the sector rubber slab (41), and convex column
(43) it is connected to expansion chamber (42).
3. a kind of triple valve of air-leakage test according to claim 1, it is characterised in that: the bottom of the extruded hole (33)
End is provided with curved support plate (6), and curved support plate (6) is set as thermal conductive metallic material, and curved support plate (6) is located at extruding
The bottom end of shape-changeable ball (5)；It is offered extrusion chamber (61) inside the curved support plate (6), and the upper side wall of extrusion chamber (61) is opened
Equipped with engaging slot (62).
4. a kind of triple valve of air-leakage test according to claim 3, it is characterised in that: the extrusion deformation ball (5)
Be by elastic conducting hotting mask (51) and transparent sealing film (52) pressing is formed, and extrusion deformation ball (5) be internally provided with deformable cavity, and
Rubber engaging ball (53) is provided on deformable cavity side wall, and rubber engaging ball (53) is located at the surface of engaging slot (62)；It is described
Rubber, which engages, is filled with heat discoloration powder in ball (53).
5. a kind of triple valve of air-leakage test according to claim 4, it is characterised in that: setting inside the deformable cavity
There are support ball (54), and be provided with ripple elastic plate (7) in deformable cavity, and one end of ripple elastic plate (7) is arranged in deformable cavity
Inner wall, the other end be connected to support ball (54) outer wall on；The upper surface of the ripple elastic plate (7) is provided with hyaline layer,
And corrugated plating is internally provided with transparent chamber (71), and transparent chamber (71) engages ball (53) with rubber by connecting tube and is connected to.
6. a kind of triple valve of air-leakage test according to claim 5, it is characterised in that: put in the transparent chamber (71)
It is equipped with cavity ripple expansion plate (72), and cavity ripple expansion plate (72) offers gas port, and gas port passes through connectivity slot
(37) it is connected to extrusion chamber (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646738.8A CN110346094B (en) | 2019-07-17 | 2019-07-17 | Three-way valve that gas tightness detected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646738.8A CN110346094B (en) | 2019-07-17 | 2019-07-17 | Three-way valve that gas tightness detected |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110346094A true CN110346094A (en) | 2019-10-18 |
| CN110346094B CN110346094B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910646738.8A Expired - Fee Related CN110346094B (en) | 2019-07-17 | 2019-07-17 | Three-way valve that gas tightness detected |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112113147A (en) * | 2020-09-07 | 2020-12-22 | 孙永林 | Gas leakage detection ring capable of automatically changing light from convex at joint of natural gas pipeline |
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| CN110346094B (en) | 2021-01-29 |
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