CN109469776A - A kind of high-voltage quick joint in high pressure gas storage and transportation equipment - Google Patents
A kind of high-voltage quick joint in high pressure gas storage and transportation equipment Download PDFInfo
- Publication number
- CN109469776A CN109469776A CN201710805641.8A CN201710805641A CN109469776A CN 109469776 A CN109469776 A CN 109469776A CN 201710805641 A CN201710805641 A CN 201710805641A CN 109469776 A CN109469776 A CN 109469776A
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- China
- Prior art keywords
- crossette
- screw thread
- joint body
- axial bore
- adapter tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/06—Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/037—Quick connecting means, e.g. couplings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to quick coupling fields, disclose a kind of high-voltage quick joint in high pressure gas storage and transportation equipment, it includes joint body, crossette adapter tube and casing, joint body is in the hollow cylinder of open at one end, the upper end is equipped with axial bore, its bottom is equipped with and axial bore is connected to first connect pore, the bottom surface of axial bore is equipped with ring type seal, the lower end periphery of crossette adapter tube is equipped with the outer crossette of annular, crossette adapter tube is along axial bore insertion joint body, it is docked with the sealing bottom surface of axial bore, it is outer that casing is set in crossette adapter tube, the lower end surface card of casing is pressed in the upper surface of the outer crossette of annular;The inner wall of axial bore circumferentially processes spaced multistage internal screw thread, and the periphery of casing is equipped with the external screw thread that multistage and internal screw thread match, and the middle and upper part of crossette adapter tube is equipped with limit stop ring.The present invention can be realized quick connection, and all compression-members are all made of conventional structure type, and design is simple, high reliablity.
Description
Technical field
The present embodiments relate to the quick interconnection technique fields of bulk gas warehousing and transportation facilities and process system, especially relate to
And a kind of high-voltage quick joint in high pressure gas storage and transportation equipment.
Background technique
Currently, bulk gas generallys use high pressure gas cylinder packaging lattice and the mode of delivery long pipe trailer is transported, high pressure
The main valve of gas cylinder packaging lattice is substantially still using conventional bottle valve, therefore the connection type of process system still connected originally
The connector and fixture of bottle valve;Since the latus rectum of conventional bottle valve only has 4mm, it is not able to satisfy the higher state of arts of flow.It is high
The connection type of pressure long-tube trailer and process system generallys use the dedicated high-voltage high-speed in high pressure gas storage and transportation equipment
Connector, this connector inside have complicated locking, locking, cutoff device, and structure is complicated, maintenance difficult, price are high, market base
It is monopolized on this by external product.In addition this connector needs stringent coaxial cooperation, therefore this connector has been often equipped with guarantor
The appurtenances of coaxial cooperation are demonstrate,proved, external structure is complicated, is easy to produce leakage problem in use.
It is all provided with process shutoff valve before usual process system interface, long tube motorcycle interface, packaging lattice interface, in energy
In the case where enough guaranteeing that connector terminal device is fixed, the cutoff device inside quick coupling there is no ample scope for abilities, even if
Need can also to be arranged with process corresponding pressure release, displacement, pipeline are completed;Therefore It is not necessary to setting, no internal shutdown dress
The connector set not only reduces flow resistance and can reduce the internal diameter of quick coupling to greatest extent, reduces quick coupling
Apparent size.
Structure is complicated for the locking of quick coupling, blocking device, needs very high cooperation precision, difficulty of processing is higher, no
One of the reason of easy processing manufacture, this is this product price superelevation;In addition the strength reliability of this connection is difficult by normal
Rule method determines, it usually needs it is designed using the method for finite element analysis, and causes the factor that it is expensive,
It is even more so for customed product.
Currently, be directed to the transformation of bulk gas storage and transportation mode, market there is an urgent need for a kind of cheap reliable quick coupling,
Meet bulk gas and fill and export demand, and then meets the requirement of high pressure gas conveying technique and safety.
Summary of the invention
(1) technical problems to be solved
The purpose of the embodiment of the present invention is that providing one kind is applicable to small diameter tube and simple, cheap, reliable high-voltage high-speed
Connector.
(2) technical solution
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of high pressure in high pressure gas storage and transportation equipment
Quick coupling comprising joint body, crossette adapter tube and casing;
The joint body is in the hollow cylinder of open at one end, and the upper end of the joint body is equipped with axial bore, bottom
Portion, which is axially arranged with, connect pore with the first of axial bore connection, and the aperture of the first connection pore is less than the axial direction
The aperture of inner hole, the bottom surface of the axial bore are circumferentially with annular groove, are equipped with ring type seal, institute in the annular groove
The thickness for stating ring type seal is greater than the depth of the annular groove, and the periphery lower part of the joint body is equipped with installation plate,
The joint body is mounted in high pressure gas storage and transportation equipment by the installation plate;
The lower end periphery outer crossette of annular with outward extension of crossette adapter tube, the outer diameter of the outer crossette of annular and
The internal diameter of the axial bore matches, and the crossette adapter tube is inserted into the joint body along the axial bore of the joint body
In, and the lower end surface of crossette adapter tube is docked with the sealing bottom surface of the axial bore, the crossette adapter tube is axially arranged with
The the second connection pore for connecting pore connection with described first;
Described sleeve pipe is set in outside the crossette adapter tube, and the outer diameter of described sleeve pipe and the outer diameter of the outer crossette of annular are mutually fitted
It answers, the lower end surface card of described sleeve pipe is pressed in the upper surface of the outer crossette of annular;
It is long along the axial bore that the inner wall of the axial bore of the joint body is circumferentially machined with spaced multistage
The internal screw thread of direction setting is spent, the periphery of described sleeve pipe is equipped with multistage external screw thread matched with the internal thread, and adjacent institute
It states central angle corresponding between internal screw thread and is more than or equal to central angle corresponding to the external screw thread;
The middle and upper part of the crossette adapter tube is equipped with limit stop ring, and the upper end of described sleeve pipe is located under the limit stop ring
Side, the upper end of the crossette adapter tube is for connecting high-pressure hose.
Wherein, internal screw thread described in multistage is evenly arranged on the inner wall circumferential direction of the joint body, and the external screw thread is evenly arranged on described
The periphery of casing;The internal screw thread and externally threaded quantity are respectively three;The corresponding center of circle between the adjacent internal screw thread
Angle is 60 degree.
Wherein, the joint body, crossette adapter tube and casing coaxial arrangement.
It wherein, further include handle, the handle is connected to the outer periphery of described sleeve pipe upper end.
Wherein, the upper end periphery annular flange with outward extension of described sleeve pipe, the annular flange are radially provided with
For connecting the connecting hole of the handle.
Wherein, the handle is connected through a screw thread or welds with the connecting hole.
Wherein, the limit stop ring is connected through a screw thread with crossette adapter tube.
Wherein, the external screw thread and internal screw thread use saw-tooth thread.
Wherein, multiple mounting holes are surrounded by the installation plate.
Wherein, the annular flange of described sleeve pipe is located between the upper end and the limit stop ring of the joint body.
(3) beneficial effect
Compared with prior art, the embodiment of the present invention has the advantage that
A kind of high-voltage quick joint in high pressure gas storage and transportation equipment provided in an embodiment of the present invention, including connector sheet
Body, crossette adapter tube and casing, are in the hollow cylinder of open at one end using joint body, and the upper end of the joint body is equipped with axial
Inner hole, bottom, which is axially arranged with, connect pore with the first of axial bore connection, and the aperture of the first connection pore is small
In the aperture of the axial bore, the bottom surface of the axial bore is circumferentially with annular groove, is equipped with ring in the annular groove
Shape sealing ring, the thickness of the ring type seal are greater than the depth of the annular groove, and the periphery lower part of the joint body is set
There is installation plate, the joint body is mounted in high pressure gas storage and transportation equipment by the installation plate;The crossette adapter tube
The lower end periphery outer crossette of annular with outward extension, the outer diameter and the internal diameter phase of the axial bore of the outer crossette of annular
Matching, the crossette adapter tube are inserted into the joint body along the axial bore of the joint body, and crossette adapter tube
Lower end surface is docked with the sealing bottom surface of the axial bore, and being axially arranged with for the crossette adapter tube connect pore company with described first
The second logical connection pore;Described sleeve pipe is set in outside the crossette adapter tube, the outer diameter of described sleeve pipe and the outer crossette of annular
Outer diameter be adapted, the lower end card of described sleeve pipe is pressed in the upper surface of the outer crossette of annular;The axis of the joint body is inside
The inner wall in hole is circumferentially machined with the internal screw thread that spaced multistage is arranged along the axial bore length direction, described sleeve pipe
Periphery is equipped with multistage external screw thread matched with the internal thread, and central angle corresponding between the adjacent internal screw thread is greater than
Equal to central angle corresponding to the external screw thread, before guaranteeing that external screw thread and internal screw thread do not connect, the outer spiral shell of described sleeve pipe
Line can be along joint body described in the gap quick insertion between the adjacent internal screw thread, by rotating certain angle after insertion
It spends to complete the threaded connection of casing and joint body, whole operation realizes live quickly connection, institute substantially at 5 seconds or so
There is compression-member to be all made of conventional structure type, can be designed and strength check according to the method for rule design, design
Simply, high reliablity can be designed manufacture to latus rectum and pressure-resistant demand according to process conditions;It is connected using screw thread pair, because
This does not need additional centering fixing fitting, does not need complicated locking, blocking device yet, using conventional radial static seal side
Formula, high reliablity are not in the leakage problem in operational process.Due to design the processing is simple convenient, low cost, completely
Corresponding imported product can be substituted, the process applied to not particular/special requirement connects, and the especially suitable occasion in small diameter tube;
The middle and upper part of the crossette adapter tube is equipped with limit stop ring, for the scope of activities of described sleeve pipe to be limited in the limit
Below the retaining ring of position, casing is avoided surprisingly to fall off.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
Figure;
Fig. 2 is the A-A cross-sectional view in Fig. 1;
Fig. 3 is the B-B cross-sectional view in Fig. 1;
Fig. 4 is the joint body in a kind of high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
Axial sectional view;
Fig. 5 is the joint body in a kind of high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
Top view;
Fig. 6 is the crossette adapter tube in a kind of high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
Axial sectional view;
Fig. 7 is bowing for the casing in a kind of high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
View;
Fig. 8 is the A-A cross-sectional view in Fig. 7;
Fig. 9-Figure 16 is a kind of connection of the high-voltage quick joint in high pressure gas storage and transportation equipment of the embodiment of the present invention
Process schematic;
In figure: 1- joint body;2- ring type seal;3- crossette adapter tube;4- casing;5- handle;11- internal screw thread;12-60
Spend groove;13- installs plate;14- mounting hole;15- sealing plane;16- annular groove;The connection pore of 17- first;18- is axial
Inner hole;31- connection nozzle;32- limit stop ring;The outer crossette of 33- annular;34- sealing plane;The connection pore of 35- second;41-60
Spend groove;42- external screw thread;43- central through hole;The lower end surface 44-.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the embodiment of the present invention is described in further detail.With
Lower example is not limited to the range of the embodiment of the present invention for illustrating the embodiment of the present invention.
In the description of the embodiment of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description embodiment of the present invention and simplifies description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as the limitation to the embodiment of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and
It cannot be understood as indicating or implying relative importance.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in embodiments of the present invention.
In addition, unless otherwise indicated, " multiple ", " more ", " multiple groups " are meant that in the description of the embodiment of the present invention
Two or more.
It as shown in figures 1-8, is a kind of high-voltage high-speed in high pressure gas storage and transportation equipment provided in an embodiment of the present invention
Connector comprising joint body 1, crossette adapter tube 3 and casing 4, joint body 1, crossette adapter tube 3 and casing 4 are coaxially disposed;
The joint body 1 is in the hollow cylinder of open at one end, and the upper end of the joint body 1 is equipped with axial bore 18,
Its bottom, which is axially arranged with, connect pore 17 with the first of the axial bore 18 connection, and the aperture of the first connection pore 17 is small
In the aperture of the axial bore 18, the bottom surface of the axial bore 18 is circumferentially with annular groove 16, the annular groove 16
Interior to be equipped with ring type seal 2, the thickness of the ring type seal 2 is greater than the depth of the annular groove 16, so that annular is close
Annular groove 16 is exposed in the upper end of seal 2, and ring type seal 2 can use fluororubber O-type sealing ring, polytetrafluoroethylene (PTFE) annular pad
The diversified forms such as circle, the periphery lower part of the joint body 1 are equipped with installation plate 13, and the joint body 1 passes through the installation
Plate 13 is mounted in high pressure gas storage and transportation equipment;
The outer crossette 33 of the lower end periphery of the crossette adapter tube 3 annular with outward extension, the outer crossette 33 of annular
Outer diameter and the internal diameter of the axial bore 18 match, and the crossette adapter tube 3 is inserted into along the axial bore 18 of the joint body 1
In the joint body 1, and the lower end surface of the crossette adapter tube 3 is a sealing plane 34, the bottom with the axial bore 18
Face seals as another sealing plane 15 and docks, and the ring type seal 2 between compression constitutes reliable radial seal, described
Crossette adapter tube 3 is axially arranged with the second connection pore 35 for connecting the connection of pore 17 with described first, in the embodiment of the present invention,
First connection pore 17 is identical with the aperture of the second connection pore 35, for passing through conveyed processing medium;
Described sleeve pipe 4 is set in outside the crossette adapter tube 3, the internal diameter of the central through hole 43 of casing 4 and crossette adapter tube 3 outside
Diameter is identical, and the outer diameter of the outer diameter of described sleeve pipe 4 and the outer crossette 33 of the annular is adapted, and pressure is blocked in the lower end surface 44 of described sleeve pipe 4
In the upper surface of the outer crossette 33 of the annular, crossette adapter tube 3 is driven to move down by casing 4, the two becomes a joint component;
The inner wall of the axial bore 18 of the joint body 1 is circumferentially machined with spaced multistage along the axial bore
The internal screw thread 11 of 18 length directions setting, the periphery of described sleeve pipe 4 are equipped with the external screw thread that multistage and the internal screw thread 11 match
42, and central angle corresponding between the adjacent internal screw thread 11 is more than or equal to central angle corresponding to the external screw thread 42, set
Pipe 4 is inserted into joint body 1, and turning over set angle can make casing 4 and joint body 1 form the screw thread that can bear process load
Connection;In rotary course, under the action of screw thread pair, the outer crossette of annular of 4 lower end surface 44 of casing card pressure 3 lower end of crossette adapter tube
33, so that crossette adapter tube 3 is advanced to joint body 1, finally makes the bottom inside the lower end surface pressed joint ontology 1 of crossette adapter tube 3
Face;
The middle and upper part of the crossette adapter tube 3 is equipped with limit stop ring 32, and the upper end of described sleeve pipe 4 is located at the limit stop ring 32
Lower section, the upper end of the crossette adapter tube 3 can be using weldering for connecting high-pressure hose, type of attachment as connection nozzle 31
The diversified forms such as connect, be threadedly coupled.
Specifically, spaced multistage internal screw thread 11 is evenly arranged on the inner wall circumferential direction of the joint body 1, spaced
Multistage external screw thread 42 is evenly arranged on the periphery of described sleeve pipe 4;The quantity of the internal screw thread 11 and external screw thread 42 is respectively three;It is adjacent
Corresponding central angle is 60 degree between the internal screw thread 11, i.e., the groove formed between adjacent internal screw thread 11 is 60 degree of grooves
12, the groove formed between adjacent external screw thread 42 is also 60 degree of grooves 41, therefore, after casing 4 is inserted into joint body 1, turns over 60
The threaded connection of casing 4 Yu joint body 1 can be completed in degree.
It wherein, further include handle 5 for revoling tube 4, specially bar-shaped handle, the handle 5 is connected to the set
The outer periphery of 4 upper end of pipe.
In order to facilitate the connection of handle 5, the upper end periphery annular flange with outward extension of described sleeve pipe 4, the annular
The connecting hole of flange being radially provided with for connecting the handle 5, the handle 5 are connected through a screw thread or weld with the connecting hole
It connects.
In order to facilitate disassembly, the limit stop ring 32 is connected through a screw thread with the crossette adapter tube 3, when connector is dismantled, limit
Position retaining ring 32 can make crossette adapter tube 3 and casing 4 move together extraction joint body 1.
Wherein, the external screw thread 42 and internal screw thread 11 use saw-tooth thread, and saw-tooth thread is collection flat thread efficiency
The high screw thread with the asymmetric tooth form that trapezoidal thread technique is good, intensity is better than the whole body.
Wherein, multiple mounting holes 14 are surrounded by the installation plate 13, are preferably respectively set one at four turnings
A such as threaded hole of mounting hole 14, joint body 1 are fixed in high pressure gas storage and transportation equipment by four fixing bolts, and with it
Mobile and transport.
Wherein, the annular flange of described sleeve pipe 4 is located between the upper end and the limit stop ring 32 of the joint body 1;
So that casing 4 can only slide between the limit stop ring 32 on 3 top of crossette adapter tube and the upper end of joint body 1.
In connection procedure, as shown in figures 9 to 16, the joint component that casing 4 and crossette adapter tube 3 are formed is inserted into joint body 1
Axial bore 18 in, so that the lower end surface of crossette adapter tube 3 and the ring type seal 2 of 1 bottom surface of joint body is in contact, and continue to insert
Enter casing 4, until the outer crossette 33 of annular of lower end surface and the crossette adapter tube 3 of casing 4 is in contact, then clockwise by handle 5
460 degree of completion assembly of revoling tube;In 4 rotation process of casing, the interruption external screw thread 42 and 1 inner wall of joint body of 4 outer wall of casing
Interruption internal screw thread 11 be engaged, under the action of screw thread pair, casing 4 push crossette adapter tube 3 connect to the inner bottom surface of joint body 1
Closely, ring type seal 2 is compressed;When rotating to 45~50 degree, the lower end surface of crossette adapter tube 3 connects with the inner bottom surface of joint body 1
The precommpression of ring type seal 2 is completed in touching, forms reliable sealing;Continue 10~15 degree of rotation, makes casing 4, crossette adapter tube 3
The face pressure to contact with each other between joint body 1 is tight, forms mutual active force, is latched screw thread pair, and formation can be reliable
The connection for carrying high pressure load, due to the sealing plane of the inner bottom surface of the slightly prominent joint body 1 of ring type seal 2;Crossette at this time
There is the gap that distance is Δ between the sealing plane of the inner bottom surface of the sealing plane and joint body 1 of 3 lower end of adapter tube, Δ value is close
Or it is equal to 1/8 screw pitch;Due to the intermittent screw threads using 60 degree intervals, 4 outer wall of casing is interrupted external screw thread 42 and inner body wall
Interruption internal screw thread 11, which is fully engaged against, only needs 60 degree of rotation can be completed, to realize quick connection.
As can be seen from the above embodiments, quick coupling of the present invention is connected using intermittent screw thread pair, by rotating after insertion
60 degree of simple operations are completed, and whole operation realizes live quickly connection substantially at 5 seconds or so;All compression-members are equal
It using conventional structure type, can be designed according to the method for design by rule and strength check, design is simple, reliability
It is high;Manufacture can be designed to latus rectum and pressure-resistant demand according to process conditions, structure is simple;It is connected using screw thread pair, therefore
Additional centering fixing fitting is not needed, complicated locking, blocking device are not needed yet.Using conventional radial static seal side
Formula, high reliablity are not in the leakage problem in operational process.Due to design the processing is simple convenient, low cost, completely
Corresponding imported product can be substituted, the process applied to not particular/special requirement connects, and is particularly suitable for the occasion of small diameter tube.
The foregoing is merely the preferred embodiments of the embodiment of the present invention, are not intended to limit the invention embodiment, all
Within the spirit and principle of the embodiment of the present invention, any modification, equivalent replacement, improvement and so on should be included in this hair
Within the protection scope of bright embodiment.
Claims (10)
1. a kind of high-voltage quick joint in high pressure gas storage and transportation equipment, which is characterized in that connect including joint body, crossette
Pipe and casing;
The joint body is in the hollow cylinder of open at one end, and the upper end of the joint body is equipped with axial bore, bottom axis
To being equipped with and the axial bore be connected to first connect pore, described first connects the aperture of pore less than the axial bore
Aperture, the bottom surface of the axial bore is circumferentially with annular groove, ring type seal, the ring is equipped in the annular groove
The thickness of shape sealing ring is greater than the depth of the annular groove, and the periphery lower part of the joint body is equipped with installation plate, described
Joint body is mounted in high pressure gas storage and transportation equipment by the installation plate;
The lower end periphery outer crossette of annular with outward extension of crossette adapter tube, the outer diameter of the outer crossette of annular with it is described
The internal diameter of axial bore matches, and the crossette adapter tube is inserted into the joint body along the axial bore of the joint body,
And the lower end surface of crossette adapter tube is docked with the sealing bottom surface of the axial bore, what the crossette was taken over be axially arranged with and institute
State the second connection pore of the first connection pore connection;
Described sleeve pipe is set in outside the crossette adapter tube, and the outer diameter of the outer diameter of described sleeve pipe and the outer crossette of annular is adapted,
The lower end surface card of described sleeve pipe is pressed in the upper surface of the outer crossette of annular;
The inner wall of the axial bore of the joint body is circumferentially machined with spaced multistage along the axial bore length side
To the internal screw thread of setting, the periphery of described sleeve pipe is equipped with multistage external screw thread matched with the internal thread, and adjacent described interior
Corresponding central angle is more than or equal to central angle corresponding to the external screw thread between screw thread;
The middle and upper part of the crossette adapter tube is equipped with limit stop ring, and the upper end of described sleeve pipe is located at the lower section of the limit stop ring, institute
The upper end of crossette adapter tube is stated for connecting high-pressure hose.
2. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that multistage
The inner wall that the internal screw thread is evenly arranged on the joint body is circumferential, and the external screw thread is evenly arranged on the periphery of described sleeve pipe;In described
Screw thread and externally threaded quantity are respectively three;Corresponding central angle is 60 degree between the adjacent internal screw thread.
3. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that described
Joint body, crossette adapter tube and casing coaxial arrangement.
4. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that also wrap
Handle is included, the handle is connected to the outer periphery of described sleeve pipe upper end.
5. the high-voltage quick joint according to claim 4 in high pressure gas storage and transportation equipment, which is characterized in that described
The upper end periphery annular flange with outward extension of casing, the annular flange are radially provided with for connecting the handle
Connecting hole.
6. the high-voltage quick joint according to claim 5 in high pressure gas storage and transportation equipment, which is characterized in that described
Handle is connected through a screw thread or welds with the connecting hole.
7. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that described
Limit stop ring is connected through a screw thread with crossette adapter tube.
8. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that described
External screw thread and internal screw thread use saw-tooth thread.
9. the high-voltage quick joint according to claim 1 in high pressure gas storage and transportation equipment, which is characterized in that described
Multiple mounting holes are surrounded by installation plate.
10. the high-voltage quick joint according to claim 5 in high pressure gas storage and transportation equipment, which is characterized in that institute
The annular flange for stating casing is located between the upper end and the limit stop ring of the joint body.
Priority Applications (1)
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CN201710805641.8A CN109469776A (en) | 2017-09-08 | 2017-09-08 | A kind of high-voltage quick joint in high pressure gas storage and transportation equipment |
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CN201710805641.8A CN109469776A (en) | 2017-09-08 | 2017-09-08 | A kind of high-voltage quick joint in high pressure gas storage and transportation equipment |
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CN201710805641.8A Pending CN109469776A (en) | 2017-09-08 | 2017-09-08 | A kind of high-voltage quick joint in high pressure gas storage and transportation equipment |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112066118A (en) * | 2020-09-24 | 2020-12-11 | 核工业理化工程研究院 | Quick connect expansion joint assembly |
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