CN105864436B - A kind of end face seal LNG filler with location structure - Google Patents
A kind of end face seal LNG filler with location structure Download PDFInfo
- Publication number
- CN105864436B CN105864436B CN201610411068.8A CN201610411068A CN105864436B CN 105864436 B CN105864436 B CN 105864436B CN 201610411068 A CN201610411068 A CN 201610411068A CN 105864436 B CN105864436 B CN 105864436B
- Authority
- CN
- China
- Prior art keywords
- spool
- valve body
- location structure
- face seal
- filler
- 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
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F17C13/04—Arrangement or mounting of valves
-
- 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
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
Abstract
The invention discloses a kind of end face seal LNG filler with location structure, including valve body, it is arranged in the intracorporal spool of valve body hollow cavity, the end cap being connected with valve end, and the spring between spool and end cap is set, thimble is equipped between spool and spring, thimble one end is connected with spring, the other end is equipped with point, the recessed portion that spool end is equipped with shape and point is adapted.This design carries out precise positioning to spool by the tip of thimble, overcome the cumulative limit generated after each component combination, in addition elastic force is applied on the central point of spool by spring by thimble, it can prevent spool from leading to unbalance stress because of self-position deviation, camber of spring or the reason of shaking in this way, spool is avoided to shift or tilt relative to valve body, to ensure that spool contacts well always with the sealing surface of valve body.
Description
Technical field
The present invention relates to the technical field of LNG filler, in particular to a kind of end face seal LNG with location structure adds
Geat.
Background technique
LNG filler is mainly used for the filling of the storage tank super-low liquid of LNG automobile, steamer etc., including LNG and liquid nitrogen etc.
Industrial gasses.
The existing filler in market technically now belongs to the sub-brand name of ECI from U.S. JC Carter and Macro(),
Almost all uses radial seal mode, and it is all to radially slide sealing that the design of sealing structure and sealing element is almost the same,
Using the sealing element of spring cooperation PTFE or PCTFE, the size of sealing element is nearly all exactly the same, and only filler appearance slightly has
Difference.Macro(mark Technology Co., Ltd.) disclosed in a liquefied natural gas (LNG) filler, as shown in Figure 1, its seal
Part 101 be arranged between filler spool 102 and filler valve body 103, filler spring 104 directly with filler spool 102
Connection, the filler of this structure, when filling LNG every time, liquid feeding rifle opens filler spool 102, filler spool 102
On 103 import of sealing element 101 and filler valve body circular hole between using mode is slidingly sealed, relative displacement occurs, to close
Envelope surface generates certain abrasion.In view of China LNG heavy truck and bus running environment have partial particulate shape dust or
Other foreign matters, once into filler import, it is easy to it is shoved into sealing mating surface, and during being slidingly sealed, it is right
Sealing surface causes permanently to scratch, and so as to cause serious leakage failure, causes security risk.
There was only a company on world market at present, Sichuan May Flower precision machinery Co., Ltd uses non-radial sliding
The mode of sealing, as shown in Fig. 2, the filler of the said firm uses conical surface seal, valve body sealing surface 201 is obliquely installed, spool
On ring packing 202 and valve body sealing surface 201 without opposite sliding, compressed spring 203 is not connect with spool directly.The structure solution
Determined sealing surface scuffing, damage the problem of, but the sealing means lack position assurance structure, and compressed spring 203 be easy
Run-off the straight and shaking, will lead to the offset and inclination of spool in this way, and the spring force size distribution being applied on spool is not
, the direction of spring force is inclined to valve axis direction, causes the ring packing 202 on spool opposite with valve body sealing surface 201
To cause band that cannot be overlapped leakage problem occurs for inclination.
Summary of the invention
The purpose of invention: the present invention discloses a kind of end face seal LNG filler with location structure, can solve spool
Orientation problem, it is ensured that spool is overlapped always with the sealing surface of valve body, improves the reliability and stability of sealing, avoid leakage ask
The generation of topic.
Technical solution: in order to achieve the goal above, the invention discloses a kind of, the end face seal LNG with location structure adds
Geat, including valve body, setting is in the intracorporal spool of valve body hollow cavity, the end cap being connected with valve end, and is arranged in valve
Spring between core and end cap is equipped with thimble between spool and spring, thimble one end is connected with spring, and the other end is equipped with tip
Portion, the recessed portion that spool end is equipped with shape and point is adapted.This design carries out essence to spool by the tip of thimble
Certainly position overcomes the cumulative limit generated after each component combination, and in addition elastic force is applied in spool by spring by thimble
On heart point, it can prevent spool from leading to unbalance stress because of self-position deviation, camber of spring or the reason of shaking in this way, avoid valve
Core shifts or tilts relative to valve body, to ensure that spool contacts well always with the sealing surface of valve body.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the valve inner are equipped with protrusion
Stepped part, spool is equipped with the sealing fit portion of protrusion, wherein sealing fit portion and stepped part fit and the sealing surface that is formed
With the axis perpendicular of valve body.This design is sealed using axial end face, it can be ensured that sealing surface contacts well always；Spool is close
Without opposite sliding between cover and valve body sealing surface, foreign matter is avoided to improve filler to the scuffing and abrasion of sealing surface
Service life.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the spool far from thimble that
One end is equipped with guiding axle portion, and valve inner is equipped with the stepped part of protrusion, offers pilot hole on stepped part.This design guiding axis
It is moved under the regulation of pilot hole in portion, it is ensured that the relative positional relationship of spool and valve body, and spool is oriented to and is positioned, it will
Its position of related features controls in a certain range；The precise positioning of this guide-localization combination thimble, overcomes cumulative limit and brings
Poor sealing, and improve the stability in operational process and reliability.
Further, a kind of above-mentioned end face seal LNG filler with location structure, the thimble offer one group of stream
Body access opening.This design flows out fluid from the fluid passage holes in thimble middle position, and the flow of fluid can be improved, and accelerates
Filling speed.
Further, above-mentioned a kind of end face seal LNG filler with location structure, further includes being set on valve body
Flange is connect with valve body screw thread, and valve body is equipped with spacing block set.This design is threadedly coupled instead of current industry universal
Welding procedure avoids welding from causing valve body thermal deformation and generates thermal stress；Thermal deformation itself will lead to valve body sealing surface change
Shape, therefore lead to seal failure, and the harm of thermal stress is more hidden also bigger, due to being likely difficult to discover sealing mistake under room temperature
Effect, but in ultralow-temperature operation conditions, ultralow temperature stress and thermal stress alternating action remaining when welding will lead to valve body and generate not
Foreseeable deformation, so that seal failure occur, the design of threaded connection then completely eliminates this risk；Spacing block set can be with
Ensure and limit relative position when flange is connect with valve body.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the point is tapered, recessed
Concave portion is bellmouth, and wherein the cone angle of recessed portion is greater than the cone angle of point.This design precision easy to process, and positioning
It is high.
Further, a kind of above-mentioned end face seal LNG filler with location structure, the fluid passage holes are rounded
Or slotted hole shape, with the distribution of circular array column-shaped.This design increases the gross area of fluid passage holes as far as possible, guarantees fluid
Flow, and keep its flowing uniform, stable.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the guiding axle portion are equipped with one group
Diversion trench, the distribution of diversion trench circular array shape.This design allows the smooth circulation of fluid and ensure that its flow, diversion trench
Reasonable layout make the flowing of fluid more evenly, stablize.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the sealing fit portion includes close
Seal, sealing fit portion are bonded by sealing ring with the sealing surface of stepped part, and the surface of the sealing ring is convex-shaped surface.It is this
Design can choose different materials from spool using sealing ring as individual component, both can guarantee spool entirety in this way
Intensity and rigidity, but can guarantee valve core sealed cover have the characteristics that it is corrosion-resistant, low temperature resistant, do not adhere to；The sealing ring of convex-shaped surface
When being bonded with the sealing surface of stepped part, the two is linear contact, and the probability that sealing surface is contacted with foreign matter reduces, and in fluid
Under washing away, foreign matter is not easy to remain on convex surface, reduces the possibility that sealing surface is scratched, damages.
Further, above-mentioned a kind of end face seal LNG filler with location structure, the spool includes guiding axis
Portion, female seat and valve core base, wherein female seat is set in the end of guiding axle portion, and the recessed portion is arranged at spool bottom
The end of seat, the valve core base other end are equipped with installation axle portion, and installation axle portion passes through female seat and is connected with guiding axle portion, is oriented to
Axle portion is equipped with shape and installs the adaptable mounting hole of axle portion.This design utilizes guiding axle portion and valve core base by female seat
It is located in wherein, in addition, the side of female seat is not easy female seat not by the effect of external force in free state
Deformation and displacement, mounting stability is good, guarantees that sealing surface contacts well always, prevents from leaking；The outer ring of female seat and ladder
The end face in portion contacts, and forms axial end face sealing, improves the service life of female seat.
Above-mentioned technical proposal can be seen that have the invention has the following beneficial effects: one kind of the present invention and position
The sealing face contact of the end face seal LNG filler of structure, spool and valve body is good, improves the reliability and stabilization of sealing
Property；The scuffing and damage for avoiding sealing surface improve the service life of filling mouthful seal；Effectively reduce risk of leakage with
And therefore bring after-sales service cost；Safety is improved, has ensured that gas station operator's is safe and healthy；Improve stream
The flow of body accelerates filling speed；Eliminate the wind of seal failure caused by welded stress and ultralow temperature stress alternation
Danger, improves the life and reliability of product.
Detailed description of the invention
Fig. 1 is the structure chart of a LNG filler disclosed in mark Technology Co., Ltd. in the prior art；
Fig. 2 fills for the LNG of a conical surface seal disclosed in Sichuan May Flower precision machinery Co., Ltd in the prior art
The structure chart of mouth；
Fig. 3 is a kind of end face seal LNG filler the first embodiment with location structure of the present invention
Sectional structure chart；
Fig. 4 is a kind of end face seal LNG filler the first embodiment with location structure of the present invention
It is oriented to the structure chart of axle portion；
Fig. 5 is a kind of end face seal LNG filler the first embodiment with location structure of the present invention
The structure chart of thimble；
Fig. 6 is a kind of end face seal LNG second of embodiment of filler with location structure of the present invention
Sectional structure chart；
Fig. 7 is a kind of end face seal LNG second of embodiment of filler with location structure of the present invention
The structure chart of thimble；
Fig. 8 is a kind of end face seal LNG filler the third embodiment with location structure of the present invention
Sectional structure chart；
In figure: 1- valve body, 11- stepped part, 12- pilot hole, 13- spacing block set, 2- spool, 21- recessed portion, 22- sealing
Auxiliary section, 23- guiding axle portion, 24- diversion trench, 25- sealing ring, 26- female seat, 27- valve core base, 28- install axle portion,
29- mounting hole, 30- spill pedestal, 31- ring packing, 3- end cap, 4- spring, 5- thimble, 51- point, 52- fluid channel
Hole, 6- flange, 101- sealing element, 102- filler spool, 103- filler valve body, 104- filler spring, 201- valve body are close
Cover, 202- ring packing, 203- compressed spring.
Specific embodiment
With reference to the accompanying drawing, the specific embodiment of the invention is described in detail.
Embodiment 1
The first embodiment of a kind of end face seal LNG filler with location structure of the invention, such as Fig. 3 to figure
Shown in 5, including valve body 1, it is arranged in the intracorporal spool 2 of 1 hollow cavity of valve body, the end cap 3, Yi Jishe being connected with 1 end of valve body
The spring 4 between spool 2 and end cap 3 to be set, thimble 5 is equipped between spool 2 and spring 4,5 one end of thimble is connected with spring 4,
The other end is equipped with tapered point 51, corresponding, the recessed portion that 2 end face of spool is equipped with shape and point 51 is adapted
21, recessed portion 21 is bellmouth, and wherein the cone angle of recessed portion 21 is greater than the cone angle of point 51.Protrusion is equipped with inside valve body 1
Stepped part 11, offers pilot hole 12 on stepped part 11, and spool 2 includes guiding axle portion 23, female seat 26 and valve core base 27,
Wherein guiding axle portion 23 can move under the regulation of pilot hole 12, and female seat 26 is set in the end of guiding axle portion 23, described
The end of valve core base 27 is arranged in recessed portion 21, and 27 other end of valve core base is equipped with installation axle portion 28, and installation axle portion 28 passes through
Female seat 26 is connected with guiding axle portion 23, and guiding axle portion 23 is equipped with shape and installs the adaptable mounting hole 29 of axle portion 28,
Connection type between axle portion 28 and mounting hole 29 is wherein installed to be interference fit or be threadedly coupled；Over-surplus fit structure simply may be used
Lean on, processing with it is easy for installation；It is threadedly coupled easy to disassemble, the replaceability of female seat 26 is good, in addition, the bottom of female seat 26
Due to deformation, the threaded connection between guiding axle portion 23 and valve core base 27 provides pretightning force, prevents the pine being threadedly coupled
It is dynamic.The outer ring of female seat 26 is contacted with the end face of stepped part 11, formed axial end face sealing, 26 outer ring of female seat it is transversal
Face is linear in evagination, is in mentioned ridge-shaped or semicircle further, and the material of female seat 26 is PTFE or PCTFE, or be modified
PTFE, or modified PCTFE.Thimble 5 offers one group of rounded fluid passage holes 52, is distributed with circular array column-shaped,
Quantity is 4 to 6；It is oriented to axle portion 23 and is equipped with one group of diversion trench 24, the distribution of 24 circular array shape of diversion trench, quantity 3
It is a to 5.It is arranged with flange 6 on valve body 1, is threadedly coupled with valve body 1, valve body 1 is equipped with spacing block set 13, for limiting method
The position of orchid 6.To be threadedly coupled between end cap 3 and valve body 1, this mode is easy to disassemble, facilitates the replacement of components, and screw thread connects
Place is met using thread locking adhesive or screw thread fastening glue, leakproofness and mounting stability can be improved in this way, in addition, the end of valve body 1
Valve seal material is equipped at the cooperation of face and end cap 3, leakproofness can be improved in this design, prevents fluid from letting out from installation gap
Leakage, while the compression of valve seal material can provide pretightning force to be threadedly coupled, and keep connection more firm.Valve core base 27 is equipped with recessed
That end of concave portion 21 is additionally provided with one group of blind hole, and when maintenance can probe into blind hole using tool and clamp spool 2, and be drawn off.
Embodiment 2
Second of embodiment of a kind of end face seal LNG filler with location structure of the invention, such as Fig. 6 and figure
Shown in 7, spool 2 is equipped with the sealing fit portion 22 of protrusion, and wherein sealing fit portion 22 fits with stepped part 11 and formed close
The sealing means of the axis perpendicular of cover and valve body 1, i.e. valve body 1 and spool 2 are axial end face sealing；Further, it seals
Auxiliary section 22 includes sealing ring 25, and the surface of sealing fit portion 22 is arranged in sealing ring 25, and sealing fit portion 22 passes through sealing ring
25 are bonded with the sealing surface of stepped part 11, and the surface of the sealing ring 25 is convex-shaped surface；The integrated design of spool 2, structure
Simply, cost is reduced, and reduces cumulative limit.Thimble 5 offers one group of fluid passage holes 52, and fluid passage holes 52 are in bending
Slotted hole shape, with circular array column-shaped distribution, quantity be 3 or 4.Other structures are same as Example 1.
Embodiment 3
The third embodiment of a kind of end face seal LNG filler with location structure of the invention, such as Fig. 8 institute
Showing, spool 2 includes guiding axle portion 23, spill pedestal 30 and ring packing 31, and wherein the section of spill pedestal 30 is in concave,
Itself and guiding axle portion 23 form mounting groove of ring packing 31, when assembling wherein by the indentation of ring packing 31, other structures and reality
It is identical to apply example 1.The structure of spool 2 in this way is also relatively simple, easy for assembly, and the fixation of ring packing 31 is more stable, reliable.
The above is only a preferred embodiment of the present invention, it should be noted that for those skilled in the art
For, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as guarantor of the invention
Protect range.
Claims (9)
1. a kind of end face seal LNG filler with location structure, including valve body (1) are arranged in valve body (1) hollow cavity
Spool (2), the end cap (3) being connected with valve body (1) end, and spring between spool (2) and end cap (3) is set
(4), it is characterised in that: be equipped with thimble (5) between spool (2) and spring (4), thimble (5) one end is connected with spring (4), separately
One end is equipped with point (51), the recessed portion (21) that spool (2) end face is equipped with shape and point (51) are adapted；The tip
Portion (51) is tapered, and recessed portion (21) is bellmouth, and wherein the cone angle of recessed portion (21) is greater than the cone angle of point (51).
2. a kind of end face seal LNG filler with location structure according to claim 1, it is characterised in that: described
The stepped part (11) of protrusion is equipped with inside valve body (1), spool (2) is equipped with the sealing fit portion (22) of protrusion, wherein sealing cooperation
Portion (22) and stepped part (11) fit and the axis perpendicular of sealing surface and valve body (1) that is formed.
3. a kind of end face seal LNG filler with location structure according to claim 1, it is characterised in that: described
Spool (2) is equipped with guiding axle portion (23) far from that one end of thimble (5), and the stepped part (11) of protrusion, rank are equipped with inside valve body (1)
Pilot hole (12) are offered on terraced portion (11).
4. a kind of end face seal LNG filler with location structure according to claim 1, it is characterised in that: described
Thimble (5) offers one group of fluid passage holes (52).
5. a kind of end face seal LNG filler with location structure according to claim 1, it is characterised in that: also wrap
The flange (6) being set on valve body (1) is included, is threadedly coupled with valve body (1), valve body (1) is equipped with spacing block set (13).
6. a kind of end face seal LNG filler with location structure according to claim 4, it is characterised in that: described
Fluid passage holes (52) are rounded or slotted hole shape, with the distribution of circular array column-shaped.
7. a kind of end face seal LNG filler with location structure according to claim 3, it is characterised in that: described
It is oriented to axle portion (23) and is equipped with one group of diversion trench (24), the distribution of diversion trench (24) circular array shape.
8. a kind of end face seal LNG filler with location structure according to claim 2, it is characterised in that: described
Sealing fit portion (22) includes sealing ring (25), and sealing fit portion (22) passes through the sealing surface of sealing ring (25) and stepped part (11)
Fitting, the surface of the sealing ring (25) are convex-shaped surface.
9. a kind of end face seal LNG filler with location structure according to claim 3, it is characterised in that: described
Spool (2) includes guiding axle portion (23), female seat (26) and valve core base (27), and wherein female seat (26) is set in guiding
The end of axle portion (23), the recessed portion (21) are arranged in the end of valve core base (27), and valve core base (27) other end is equipped with
It installs axle portion (28), installation axle portion (28) passes through female seat (26) and is connected with guiding axle portion (23), and guiding axle portion (23) is set
There is shape and axle portion (28) adaptable mounting hole (29) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411068.8A CN105864436B (en) | 2016-06-13 | 2016-06-13 | A kind of end face seal LNG filler with location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610411068.8A CN105864436B (en) | 2016-06-13 | 2016-06-13 | A kind of end face seal LNG filler with location structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864436A CN105864436A (en) | 2016-08-17 |
| CN105864436B true CN105864436B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610411068.8A Active CN105864436B (en) | 2016-06-13 | 2016-06-13 | A kind of end face seal LNG filler with location structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870778B (en) * | 2017-03-23 | 2019-12-10 | 罗达莱克斯阀门(上海)有限公司 | valve for ultralow temperature filling |
| CN107091349A (en) * | 2017-05-25 | 2017-08-25 | 珠海许继电气有限公司 | A kind of sealed platform cover gas charge mouthful |
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| CN2114069U (en) * | 1991-12-25 | 1992-08-26 | 天津市东方气体工程技术开发公司 | Rapid gas-charging system of gas cylinder valve for welding |
| CN2176469Y (en) * | 1993-10-25 | 1994-09-07 | 陈庆法 | Electromagnetic exhaust valve |
| DE29615806U1 (en) * | 1996-09-11 | 1997-10-09 | Weh Verbindungstechnik | Refueling valve |
| TW503506B (en) * | 2001-11-14 | 2002-09-21 | Taiwan Semiconductor Mfg | Method for automatically downloading the testing procedures |
| CN201651455U (en) * | 2010-04-30 | 2010-11-24 | 锦州红海桥橡胶有限公司 | Tire explosion-proof valve cock |
| JP2013087867A (en) * | 2011-10-18 | 2013-05-13 | Neriki:Kk | Fluid filling structure, fluid filling apparatus, introduction device, and check valve |
| CN103277545A (en) * | 2013-06-04 | 2013-09-04 | 浙江大学 | Low-noise overflow valve |
| CN105605256A (en) * | 2016-01-25 | 2016-05-25 | 巨隆集团芜湖兴隆液压有限公司 | Safety valve |
| CN205877206U (en) * | 2016-06-13 | 2017-01-11 | 苏州先创流体控制技术有限公司 | Axial end face seal's LNG filler |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114069U (en) * | 1991-12-25 | 1992-08-26 | 天津市东方气体工程技术开发公司 | Rapid gas-charging system of gas cylinder valve for welding |
| CN2176469Y (en) * | 1993-10-25 | 1994-09-07 | 陈庆法 | Electromagnetic exhaust valve |
| DE29615806U1 (en) * | 1996-09-11 | 1997-10-09 | Weh Verbindungstechnik | Refueling valve |
| TW503506B (en) * | 2001-11-14 | 2002-09-21 | Taiwan Semiconductor Mfg | Method for automatically downloading the testing procedures |
| CN201651455U (en) * | 2010-04-30 | 2010-11-24 | 锦州红海桥橡胶有限公司 | Tire explosion-proof valve cock |
| JP2013087867A (en) * | 2011-10-18 | 2013-05-13 | Neriki:Kk | Fluid filling structure, fluid filling apparatus, introduction device, and check valve |
| CN103277545A (en) * | 2013-06-04 | 2013-09-04 | 浙江大学 | Low-noise overflow valve |
| CN105605256A (en) * | 2016-01-25 | 2016-05-25 | 巨隆集团芜湖兴隆液压有限公司 | Safety valve |
| CN205877206U (en) * | 2016-06-13 | 2017-01-11 | 苏州先创流体控制技术有限公司 | Axial end face seal's LNG filler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864436A (en) | 2016-08-17 |
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