CN206738626U - A kind of ultralow temperature upper-mounting type ball valve - Google Patents
A kind of ultralow temperature upper-mounting type ball valve Download PDFInfo
- Publication number
- CN206738626U CN206738626U CN201720047431.2U CN201720047431U CN206738626U CN 206738626 U CN206738626 U CN 206738626U CN 201720047431 U CN201720047431 U CN 201720047431U CN 206738626 U CN206738626 U CN 206738626U
- Authority
- CN
- China
- Prior art keywords
- valve
- ball
- valve seat
- trim ring
- mounting type
- 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.)
- Active
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a kind of ultralow temperature upper-mounting type ball valve, including valve ball, valve seat, valve body and trim ring, the unlocking structure of mutual cooperation is formed in the axial direction of the valve seat and trim ring, rotate in a circumferential direction the valve seat, and the unlocking structure is suitable to drive the valve seat to depart from the distance that the sealing with the valve ball can take out to the valve ball；Above-mentioned ball valve utilizes valve seat and the unlocking structure on trim ring, promote axially outward movement of the valve seat along valve body, until valve ball can take out between two valve seats, now unlocking structure reaches the limit of distance and locked, and maintainer is with regard to that can take out valve ball and trim, when maintenance is completed, only need reversely or continue to rotate the valve seat, the valve seat is moved up to sealing, without external connection power to close to the direction of the valve ball, it is simple and convenient, realize the purpose of the online Quick overhaul of ball valve.
Description
Technical field
It the utility model is related to ball valve technical field, and in particular to a kind of ultralow temperature upper-mounting type ball valve.
Background technology
Liquefied natural gas, abbreviation LNG, main component are methane, are a kind of more advanced clean energy resourcies, are widely applied
In the daily life of people；LNG is to be cooled to -162 DEG C by gaseous natural gas under normal pressure, is allowed to condense into liquid,
Natural gas after liquefaction can greatly save storage and transportation space and cost, and have the characteristics that calorific value is big, performance is high.In natural gas liquid
The ultra-low temperature ball valve used during change, in addition to basic rupturing operation function is met, it is also necessary to can be online easily and fast
Maintenance, shorten downtime, reduce idle cost.
The valve seat construction of common ultra-low temperature valves is threaded collar nested structure and external push mode structure on the market at present, this
There is dismounting difficulty in two kinds of ball valves, can not realize the purpose of quick on-bne repair.
Chinese patent literature CN102889395A discloses dress formula fixing ball valve, its valve ball system of getting on or off the bus on a kind of ultralow temperature
Support shaft, lower support shaft are fixed on valve body, and upper support shaft is fixed on bonnet, and valve ball is connected by one end of rectangular channel and valve rod
Connect, the keyway of another embedded executing agency of valve rod, executing agency is fixed with support, and executing agency is revolved by valve rod band spheroid
Turn, realize the switch of ball valve；Although this ball-valve structure is simple, valve can not be just taken out after the ball valve is installed on pipeline
Ball and trim are overhauled.
In order to solve the above-mentioned technical problem that can not be overhauled to the valve ball in ball valve and trim, Chinese patent literature
Formula on-bne repair ball valve is filled in one kind that CN102777624A is disclosed, it is needed when overhauling by two protection plug screws on trim ring
Back out, change compression fittings, external pressure gas source joint is connected with compression fittings, open intake valve and introduce source of the gas, in source of the gas
In the presence of promote valve seat to two lateral movements, untill leaving enough withdrawal spaces among the valve seat and spheroid, that is to say, that
It is above-mentioned to dismantle ball valve in the prior art and carry out maintenance need external gas source, not only operate more troublesome, and source of the gas also not side
Portable belt, it can not be rapidly completed；Its sealing simultaneously employs O-shaped rubber ring, and elastomeric material can not meet less than -162 DEG C operating modes,
Namely the structure cannot be used for cryogenic system.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome can not quickly realize on-bne repair in the prior art
It is the defects of valve ball and trim, a kind of simple and reliable for structure so as to provide, and the ultralow temperature of quick on-bne repair ball valve can be realized
Upper-mounting type ball valve.
A kind of ultralow temperature upper-mounting type ball valve, including
Valve ball, there is the orbicule of circular channel；
Valve seat, the cylindrical body of both ends open, its one end coordinate with the outer surface sealing that the valve ball has entrance；
Valve body, sealing are set on the outside of the valve seat；
Trim ring, it is set in positioned at close to the valve ball side and dismountable fixation on the valve body；
The unlocking structure of mutual cooperation is formed in the axial direction of the valve seat and trim ring, rotate in a circumferential direction the valve seat, described
Unlocking structure is suitable to drive the valve seat to depart from the distance that the sealing with the valve ball can take out to the valve ball, reversely or continues
The valve seat is rotated, the unlocking structure is suitable to drive the sealing of the valve seat and the valve ball to coordinate.
Preferably, the unlocking structure includes taking shape in the valve seat inclined-plane of the valve seat and takes shape in the trim ring of the trim ring
Inclined-plane, the valve seat inclined-plane are suitable to move along the trim ring inclined-plane.
Preferably, the valve seat inclined-plane and trim ring inclined-plane are respectively set at least two and adjacent bevel surfaces are symmetrically set successively
Put.
Preferably, also form on the trim ring and be suitable to what the valve seat coordinated at the distance that the valve ball can take out
The sealing locking bit for taking out locking bit and the sealing cooperation suitable for the valve seat and the valve ball of locking.
Preferably, the locking bit that takes out is that the trim ring perpendicular to axial direction takes out lock plane, and the dense block is positioned as
Trim ring perpendicular to axial direction seals lock plane, and the trim ring takes out lock plane, the trim ring inclined-plane and trim ring sealing and locked
Plane abuts successively；Valve seat lock plane is provided with the valve seat accordingly, the valve seat inclined-plane abuts successively；Valve seat locks
When plane offsets with trim ring taking-up lock plane, the valve seat departs from and sealing to the valve ball of the valve ball can take out
Distance；When valve seat lock plane is relative with trim ring sealing lock plane, the sealing of the valve seat and the valve ball coordinates.
Preferably, back-moving spring is additionally provided between the valve seat and the valve body, it is described multiple at the distance that the valve ball can take out
Position spring is applied with the reseting elasticity towards the valve ball to the valve seat.
Preferably, the unlocking structure is bent ramp structure.
Preferably, the positioning knot for positioning, avoiding the trim ring to be moved is formed between the trim ring and valve body
Structure.
Preferably, the location structure includes taking shape in the inner headed face that the valve body is connected with the periphery of the trim ring
On the first groove, be arranged at the trim ring and the second groove corresponding with first groove, be positioned over first groove
The hardware in space formed with the second groove, with described in limiting positioned at first groove above, for mounting screw
The screw of hardware, and be arranged at the trim ring and be not connected side with the valve body, for taking out the logical of the hardware
Hole.
Preferably, the hardware is more than the second groove vertical direction with the size in the trim ring vertical direction
On size, no more than the size on first groove and the second groove vertical direction.
Preferably, first groove and the second groove are hemispherical, and the hardware is steel ball.
Preferably, the through hole is provided with for the groove that alignd with the screw.
Preferably, the ball valve also includes being bolted to the bonnet above the valve body, is sheathed on the bonnet
In and one end be connected to the valve rod of the valve ball, and be installed on the bonnet upper end, be connected to the execution of the valve rod other end
Mechanism, the executing agency control the switch of the valve ball by the valve rod.
Preferably, the bonnet is long neck structure.
Preferably, the valve rod is provided with the dual bearing structure for avoiding the valve rod damage, including is leaned on positioned at the valve rod
The clutch shaft bearing of nearly described valve ball one end and the second bearing positioned at the valve rod close to described executing agency one end.
Technical solutions of the utility model, have the following advantages that：
1. ultralow temperature upper-mounting type ball valve provided by the utility model, including valve ball, valve seat, valve body and trim ring, valve seat and pressure
The unlocking structure of mutual cooperation is formed in the axial direction of circle, rotate in a circumferential direction valve seat, and unlocking structure is suitable to drive valve seat disengaging and valve
The distance that the sealing of ball can take out to valve ball；Above-mentioned ball valve promotes valve seat along valve body using valve seat and the unlocking structure on trim ring
Axially outward movement, until valve ball can take out between two valve seats, now unlocking structure reaches the limit of distance and locked, and overhauls
Personnel are with regard to that can take out valve ball and trim, in addition, when maintenance is completed, maintainer installs back the valve ball and trim described
After ball valve, only need reversely or continue to rotate the valve seat, the valve seat is moved up to sealing, nothing to close to the direction of the valve ball
External connection power is needed, it is simple and convenient, realize the purpose of the online Quick overhaul of ball valve.
2. ultralow temperature upper-mounting type ball valve provided by the utility model, valve seat inclined-plane and trim ring inclined-plane are respectively set at least two
Individual and adjacent bevel surfaces are symmetrical arranged successively, and this structure is advantageous to maintainer's operation, avoids valve seat from occurring in moving process
Dislocation, causes the damage to ball valve.
3. ultralow temperature upper-mounting type ball valve provided by the utility model, also formed on the trim ring and the valve seat coordinates
Sealing suitable for the taking-up locking bit locked at the distance that can be taken out in the valve ball and suitable for the valve seat and the valve ball is matched somebody with somebody
The sealing locking bit of conjunction.This structure is to ensure maintainer when overhauling ball valve, and valve seat will not occur relatively with trim ring
It is mobile, the operation of maintainer is influenceed, also ensures the safety of maintainer.
4. ultralow temperature upper-mounting type ball valve provided by the utility model, is additionally provided with back-moving spring between valve seat and valve body,
At the distance that valve ball can take out, back-moving spring is applied with the reseting elasticity towards valve ball to the valve seat；This structure can make place
Sealing state is quickly returned in the ball valve of unset state, when maintainer's completion maintenance, and installs valve ball and trim
Only need the unlocking structure on valve seat and trim ring adjusting certain angle afterwards, valve seat just can be quickly in the presence of back-moving spring
Moved to the valve ball, form sealing structure.
5. ultralow temperature upper-mounting type ball valve provided by the utility model, formed between trim ring and valve body for positioning, avoiding
The location structure that trim ring is moved, including corresponding the first groove and the second groove being arranged on valve body and trim ring respectively,
The hardware being positioned in the space that the first groove and the second groove are formed, above the first groove, for mounting screw
To limit the screw of hardware, and it is arranged at trim ring and is not connected side, the through hole for taking out hardware with valve body；It is this
Structure is compared to back-up ring, dismounting is more easy, dismounting of the easy access personnel to trim, realizes really truly
Quick on-bne repair.
6. ultralow temperature upper-mounting type ball valve provided by the utility model, bonnet is long neck structure, to ensure stuffing-box position
In normal temperature state, prevent stuffing-box frosting or icing and influence the normal work of filler.
7. ultralow temperature upper-mounting type ball valve provided by the utility model, valve rod is provided with the duplex bearing knot for avoiding valve rod from damaging
Structure, including positioned at second bearing of the valve rod close to the clutch shaft bearing of valve ball one end and positioned at valve rod close to executing agency one end；This
Kind structure can guarantee that valve rod only delivers torque to valve ball when transmitting the moment of torsion of executing agency, will not be because of issuable moment of flexure
It is damaged.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure profile of ultralow temperature upper-mounting type ball valve provided by the utility model；
Fig. 2 is the part sectioned view shown in Fig. 1；
Fig. 3 is the structural representation of ultralow temperature upper-mounting type ball valve sealing state provided by the utility model；
Fig. 4 is the structural representation of ultralow temperature upper-mounting type ball valve unset state provided by the utility model；
Fig. 5 is the amplification profile of location structure provided by the utility model；
Fig. 6 is the amplification profile of valve rod dual bearing structure provided by the utility model；
Description of reference numerals：
1- valve bodies, the grooves of 11- first, 12- screws, 2- valve seats, 21- valve seats inclined-plane, 3- trim rings, 31- trim rings inclined-plane, 32-
Second groove, 33- through holes, 4- hardwares, 5- back-moving springs, 6- valve balls, 7- bonnets, 8- valve rods, 81- clutch shaft bearings, 82-
Two bearings, 9- executing agencies.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Fig. 1 provides the overall structure profile of ultralow temperature upper-mounting type ball valve for the utility model；Fig. 2 is the utility model
Provide the partial structurtes profile of ultralow temperature upper-mounting type ball valve.
As depicted in figs. 1 and 2, the ball valve, including valve ball 6, there is the orbicule of circular channel；Valve seat 2, both ends open
Cylindrical body, the outer surface sealing that its one end and the valve ball 6 have entrance coordinates；Valve body 1, sealing are set in the valve seat 2
Outside；Trim ring 3, it is set in positioned at close to the side of valve ball 6 and dismountable fixation on the valve body 1；Particularly, the valve
The unlocking structure of mutual cooperation is formed in the axial direction of seat 2 and trim ring 3, rotate in a circumferential direction the valve seat 2, and the unlocking structure is suitable to
Drive the valve seat 2 to depart from the distance that the sealing with the valve ball 6 can take out to the valve ball 6, reversely or continue described in rotation
Valve seat 2, the unlocking structure are suitable to drive the sealing of the valve seat 2 and the valve ball 6 to coordinate.
As shown in Figure 3 and Figure 4, Fig. 3 be the valve seat 2 overlapped with the unlocking structure on trim ring 3, the valve seat 2 and
The valve ball 6 is in the structural representation of sealing state；Fig. 4 is that the valve seat 2 moves to away from the direction of valve ball 6, with institute
The structural representation that valve ball 6 is in unset state is stated, now, ultimate range, and the valve are reached between the unlocking structure
Ball 6 can take out between the valve seat 2；The ball valve is pushed away using the valve seat 2 and the unlocking structure on the trim ring 3
Move the valve seat 2 to move along the direction away from the valve ball 6, until can be between two valve seats 2 by the valve ball 6 to Danone
The distance of taking-up, now the unlocking structure reach the limit of distance and lock, maintainer just can take out in the valve ball 6 and valve
Part, in addition, when maintenance completion, after the valve ball 6 and trim are installed back the ball valve by maintainer, only need reversely or continue
The valve seat 2 is rotated, the valve seat 2 is moved up to sealing to close to the direction of the valve ball 6, without external connection power, operation letter
It is single convenient, realize the purpose of the online Quick overhaul of the ball valve.
Further, the unlocking structure includes taking shape in the valve seat inclined-plane 21 of the valve seat 2 and takes shape in the trim ring 3
Trim ring inclined-plane 31, the valve seat inclined-plane 21 are suitable to move along the trim ring inclined-plane 31；It should be noted that inclined-plane is the unblock
Structure preferred scheme, it is the optimal case that researcher draws according to practical experience and operation, may also be in other embodiments
Other can make the valve seat 2 keep state and the structure that can be replied after relatively moving with the trim ring 3.
Further, the valve seat inclined-plane 21 and trim ring inclined-plane 31 are respectively set at least two and adjacent bevel surfaces are symmetrical successively
Set, this structure is advantageous to maintainer's operation, avoids the valve seat 2 from being misplaced in moving process, causes to described
The damage of ball valve.
Further, also formed on the trim ring 3 with the valve seat 2 coordinate be suitable to the valve ball 6 can take out away from
The sealing locking bit that taking-up locking bit from place's locking and the sealing suitable for the valve seat 2 and the valve ball 6 coordinate, this structure
It is that the valve seat 2 will not relatively move with the trim ring 3 in order to ensure maintainer when overhauling the ball valve 6, influences
The operation of maintainer, also ensure the safety of maintainer.
Further, the locking bit that takes out is that the trim ring perpendicular to axial direction takes out lock plane, and the dense block is positioned as
Trim ring perpendicular to axial direction seals lock plane, and the trim ring takes out lock plane, the trim ring inclined-plane 31 and trim ring dense block
Face is allocated to abut successively；Valve seat lock plane is provided with the valve seat 2 accordingly, the valve seat inclined-plane 21 abuts successively；Valve
When seat lock plane offsets with trim ring taking-up lock plane, the disengaging of valve seat 2 and the sealing of the valve ball 6 to the valve
The distance that ball 6 can take out；When valve seat lock plane is relative with trim ring sealing lock plane, the valve seat 2 and the valve ball 6
Sealing coordinate；This structure explanation, only when the valve seat 2 and the trim ring 3 are in unset state as shown in Figure 4,
The unlocking structure can just lock, described when the valve seat 2 is in the sealing state described in Fig. 3 with the trim ring 3
Unlocking structure does not lock.
Further, back-moving spring 5 is additionally provided between the valve seat 2 and the valve body 1, can be taken out in the valve ball 6
At distance, the back-moving spring 5 is applied with the reseting elasticity towards the valve ball 6 to the valve seat 2；This structure can make to be in
The ball valve of unset state is quickly returned to sealing state, when maintainer complete overhaul, and install the valve ball 6 and
Only need the unlocking structure on the valve seat 2 and the trim ring 3 adjusting certain angle after trim, the valve seat 2 exists
It just can quickly be moved in the presence of the back-moving spring 5 to the valve ball 6, form sealing structure.
Further, the unlocking structure is bent ramp structure, and this structure is by the valve for the ease of maintainer
When seat 2 adjusts certain angle with the unlocking structure on the trim ring 3, reduce friction.
Further, as shown in figure 5, being formed between the trim ring 3 and valve body 1 for positioning, avoiding the trim ring 3 from occurring
Mobile location structure.
Specifically, the location structure includes taking shape in the inner circle that the valve body 1 is connected with the periphery of the trim ring 3
The first groove 11 on face, the trim ring 3 and second groove 32 corresponding with first groove 11 are arranged at, is positioned over institute
The hardware 4 in the space that the first groove 11 and the second groove 32 are formed is stated, above first groove 11, for pacifying
Cartridge screw is to limit the screw 12 of the hardware 4, and is arranged at the trim ring 3 and is not connected side with the valve body 1, is used for
Take out the through hole 33 of the hardware 4；This structure is compared to back-up ring, and dismounting is more easy, and easy access personnel are to valve
The dismounting of internals, realize quick on-bne repair really truly.
Further, the hardware 4 and the size in the vertical direction of trim ring 3 are vertical more than second groove 32
Size on direction, no more than the size on the vertical direction of 11 and second groove of the first groove 32；This structure be in order to
Ensure that the hardware 4 can effectively play a part of the limitation trim ring 3.
Further, the groove 32 of the first groove 11 and second is hemispherical, and the hardware 4 is steel ball；Need
Illustrate, the hemispherical of the groove 32 of the first groove 11 and second is the preferred scheme of the present embodiment, also can be according to circumstances
With need select other shapes, the hardware 4 is selected according to the shape of the groove 32 of the first groove 11 and second
Optimal case.
Further, the through hole 33 is provided with for the groove that alignd with the screw 12, and this structure is for the ease of inspection
Repairing personnel can prompt quickly to remove and install location structure during trim is dismounted according to groove, shorten the repair time.
Further, the ball valve also includes the bonnet 7 for being bolted to the top of valve body 1, is sheathed on the valve
In lid 7 and one end is connected to the valve rod 8 of the valve ball 6, and be installed on the upper end of bonnet 7, to be connected to the valve rod 8 another
The executing agency 9 at end, the executing agency 9 control the switch of the valve ball 6 by the valve rod 8.
Further, the bonnet 7 be long neck structure to ensure that stuffing-box position is in normal temperature state, prevent stuffing-box frosting
Or freeze and influence the normal work of filler.Further, the valve rod 8 is avoided to damage as shown in fig. 6, the valve rod 8 is provided with
Dual bearing structure, including leaned on positioned at the valve rod 8 close to the clutch shaft bearing 81 of described one end of valve ball 6 and positioned at the valve rod 8
The second bearing 82 of nearly described one end of executing agency 9；This structure can guarantee that valve rod 8 when transmitting the moment of torsion of executing agency 9 only
Valve ball 6 is delivered torque to, will not be damaged because of issuable moment of flexure.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (15)
- A kind of 1. ultralow temperature upper-mounting type ball valve, it is characterised in that includingValve ball (6), there is the orbicule of circular channel；Valve seat (2), the cylindrical body of both ends open, its one end coordinate with the outer surface sealing that the valve ball (6) has entrance；Valve body (1), sealing are set on the outside of the valve seat (2)；Trim ring (3), it is set in positioned at close to the valve ball (6) side and dismountable fixation on the valve body (1)；The unlocking structure of mutual cooperation is formed in the axial direction of the valve seat (2) and trim ring (3), rotate in a circumferential direction the valve seat (2), The unlocking structure be suitable to drive the valve seat (2) depart from sealing to the valve ball (6) of the valve ball (6) can take out away from From reversely or continuing to rotate the valve seat (2), the unlocking structure is suitable to drive the close of the valve seat (2) and the valve ball (6) Envelope coordinates.
- 2. ultralow temperature upper-mounting type ball valve according to claim 1, it is characterised in that the unlocking structure includes taking shape in institute State the valve seat inclined-plane (21) of valve seat (2) and take shape in the trim ring inclined-plane (31) of the trim ring (3), the valve seat inclined-plane (21) is suitable to It is mobile along the trim ring inclined-plane (31).
- 3. ultralow temperature upper-mounting type ball valve according to claim 2, it is characterised in that the valve seat inclined-plane (21) and trim ring are oblique Face (31) is respectively set at least two and adjacent bevel surfaces are symmetrical arranged successively.
- 4. ultralow temperature upper-mounting type ball valve according to claim 2, it is characterised in that also formed on the trim ring (3) with What the valve seat (2) coordinated be suitable at the distance that the valve ball (6) can the take out taking-up locking bit of locking and suitable for the valve The sealing locking bit that the sealing of seat (2) and the valve ball (6) coordinates.
- 5. ultralow temperature upper-mounting type ball valve according to claim 4, it is characterised in that the taking-up locking bit is perpendicular to axle To trim ring take out lock plane, the dense block is oriented perpendicularly to axial trim ring sealing lock plane, and the trim ring takes Go out lock plane, the trim ring inclined-plane (31) and trim ring sealing lock plane to abut successively；Set accordingly on the valve seat (2) There are valve seat lock plane, the valve seat inclined-plane (21) to abut successively；Valve seat lock plane takes out lock plane phase with the trim ring To when, the valve seat (2) departs from the distance that the sealing with the valve ball (6) can take out to the valve ball (6)；Valve seat lock plane When relative with trim ring sealing lock plane, the valve seat (2) and the sealing of the valve ball (6) coordinate.
- 6. according to any described ultralow temperature upper-mounting type ball valves of claim 1-5, it is characterised in that the valve seat (2) and described Back-moving spring (5) is additionally provided between valve body (1), at the distance that the valve ball (6) can take out, the back-moving spring (5) is right The valve seat (2) is applied with the reseting elasticity towards the valve ball (6).
- 7. according to any described ultralow temperature upper-mounting type ball valves of claim 1-2, it is characterised in that the unlocking structure is bent oblique Face structure.
- 8. ultralow temperature upper-mounting type ball valve according to claim 1, it is characterised in that between the trim ring (3) and valve body (1) Form the location structure for positioning, avoiding the trim ring (3) from being moved.
- 9. ultralow temperature upper-mounting type ball valve according to claim 8, it is characterised in that the location structure includes taking shape in institute The first groove (11) on the inner headed face that valve body (1) is connected with the periphery of the trim ring (3) is stated, is arranged at the trim ring (3) first groove (11) and the second groove and the second groove (32) corresponding with first groove (11), are positioned over (32) hardware (4) in the space formed, to limit above first groove (11), for mounting screw The screw (12) of hardware (4) is stated, and is arranged at the trim ring (3) and is not connected side, for taking out with the valve body (1) State the through hole (33) of hardware (4).
- 10. ultralow temperature upper-mounting type ball valve according to claim 9, it is characterised in that the hardware (4) and the pressure The size that the size in (3) vertical direction is more than on the second groove (32) vertical direction is enclosed, no more than first groove And the size on the second groove (32) vertical direction (11).
- 11. ultralow temperature upper-mounting type ball valve according to claim 9, it is characterised in that first groove (11) and second Groove (32) is hemispherical, and the hardware (4) is steel ball.
- 12. ultralow temperature upper-mounting type ball valve according to claim 9, it is characterised in that the through hole (33), which is provided with, to be used for Align groove with the screw (12).
- 13. ultralow temperature upper-mounting type ball valve according to claim 1, it is characterised in that the ball valve also includes passing through bolt The bonnet (7) being connected to above the valve body (1), is sheathed in the bonnet (7) and one end is connected to the valve ball (6) Valve rod (8), and be installed on the bonnet (7) upper end, be connected to the executing agency (9) of the valve rod (8) other end, the execution Mechanism (9) controls the switch of the valve ball (6) by the valve rod (8).
- 14. ultralow temperature upper-mounting type ball valve according to claim 13, it is characterised in that the bonnet (7) is long neck structure.
- 15. ultralow temperature upper-mounting type ball valve according to claim 13, it is characterised in that the valve rod (8), which is provided with, to be avoided The dual bearing structure of valve rod (8) damage, including the clutch shaft bearing positioned at the valve rod (8) close to the valve ball (6) one end (81) and positioned at the valve rod (8) close to the executing agency (9) one end second bearing (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047431.2U CN206738626U (en) | 2017-01-16 | 2017-01-16 | A kind of ultralow temperature upper-mounting type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047431.2U CN206738626U (en) | 2017-01-16 | 2017-01-16 | A kind of ultralow temperature upper-mounting type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206738626U true CN206738626U (en) | 2017-12-12 |
Family
ID=60556175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047431.2U Active CN206738626U (en) | 2017-01-16 | 2017-01-16 | A kind of ultralow temperature upper-mounting type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206738626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763876A (en) * | 2017-01-16 | 2017-05-31 | 慎江阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
-
2017
- 2017-01-16 CN CN201720047431.2U patent/CN206738626U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763876A (en) * | 2017-01-16 | 2017-05-31 | 慎江阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
| CN110985750B (en) * | 2019-12-03 | 2022-02-22 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206738626U (en) | A kind of ultralow temperature upper-mounting type ball valve | |
| CN206513861U (en) | LNG uses ultralow temperature fixing ball valve | |
| US9052048B2 (en) | Fluid joint | |
| CN203823171U (en) | Low-temperature safety valve | |
| CN102889395A (en) | Ultralow temperature upper-installed fixed ball valve | |
| CN203627892U (en) | Soft seal valve seat of ultra-low-temperature fixed ball valve | |
| CN103644309A (en) | Low temperature resistant butterfly valve | |
| CN102818043A (en) | Low-temperature ball valve | |
| CN106763876A (en) | A kind of ultralow temperature upper-mounting type ball valve | |
| CN202884093U (en) | Ultralow temperature upward mounted fixed ball valve | |
| CN209414873U (en) | Low-temperature liquefaction vehicle fuel tank car control box shut-off valve connect leak stopping elbow with pipeline | |
| CN203384636U (en) | Cryogenic fluid loading and unloading equipment | |
| CN105526494B (en) | A kind of liquefied natural gas horizontal tank axial direction supporting arrangement | |
| CN202175197U (en) | Indoor remote closing device for outdoor ventilation head of liquefied gas transport ship | |
| CN106523729A (en) | Low-temperature top-assembling type fixed ball valve | |
| CN205047866U (en) | Three off -centre low temperature butterfly valve sealed firmly | |
| CN209458413U (en) | A kind of refractory seals butterfly isolation door gear | |
| CN109519551A (en) | A kind of refractory seals butterfly isolation door gear | |
| CN211474891U (en) | Axial-flow check valve rotation-proof structure for LNG | |
| CN202790655U (en) | Low-temperature ball valve | |
| CN205715937U (en) | Without leaking Magnetic drive ball valve | |
| CN203686328U (en) | Novel anti-filling gas valve | |
| CN109469788A (en) | Low-temperature liquefaction vehicle fuel tank car control box shut-off valve valve rod device for plugging | |
| CN110005942A (en) | Anti-freezing low temperature fluid handling arm | |
| CN103672141A (en) | Novel air-inflation-preventing gas valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |