CN205859177U - A kind of cryogenic globe valve - Google Patents
A kind of cryogenic globe valve Download PDFInfo
- Publication number
- CN205859177U CN205859177U CN201620515417.6U CN201620515417U CN205859177U CN 205859177 U CN205859177 U CN 205859177U CN 201620515417 U CN201620515417 U CN 201620515417U CN 205859177 U CN205859177 U CN 205859177U
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- valve
- extension pipe
- support
- cryogenic globe
- filler
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Abstract
This utility model provides a kind of cryogenic globe valve.This cryogenic globe valve includes that valve body, valve gap, extension pipe, support, valve rod and handwheel, described valve body, valve gap, extension pipe, support are sequentially connected with.Valve stem part is built in valve body, valve gap, extension pipe, support, and stretches out from support and be connected with handwheel.The cryogenic globe valve that this utility model provides makes the handwheel of cryogenic globe valve and filler away from cryogenic media by the design of extension pipe, thus the low temperature of medium does not interferes with filler and handwheel, the medium avoiding low temperature makes handwheel temperature burn human body after reducing, avoid physics and the chemical property of the medium influence filler of low temperature simultaneously, prevent filler fracture failure.
Description
Technical field
This utility model relates to valve field, in particular to a kind of cryogenic globe valve.
Background technology
Cryogenic globe valve, as shearing device, is mainly used in ethylene, propylene, propane, ethane, acetylene, methane, liquid oxygen, liquid
The industrial pipeline valve of the special medias such as hydrogen, liquefied natural gas, liquefied petroleum, it is adaptable to oil, chemical industry, liquefied natural gas and liquid
Change the industries such as petroleum transportation.Filler it is typically provided with, to prevent valve rod in valve opening and closing process in cryogenic globe valve
Leak outside with filler position medium, play the effect of sealing, but owing to the conveying medium temperature of liquid is relatively low, traditional low temperature cuts
Only the filler of valve can be caused filler fracture failure by the infringement of low temperature frost for a long time, it is impossible to reaches the effect sealed, thus causes
Medium is revealed, and causes potential safety hazard and economic loss, additionally, the operation handle of traditional cryogenic globe valve is by the shadow of cryogenic media
Ringing, temperature is relatively low, and user is easily burnt by cold operation when, causes personal injury.
Utility model content
In view of this, the purpose of this utility model embodiment is to provide a kind of cryogenic globe valve, to improve low temperature cut-off
The filler of valve is affected by frost is susceptible to fracture failure and operation handle is burnt the problem of human body.
To achieve the above object, the technical scheme that the cryogenic globe valve that this utility model provides uses is as described below:
A kind of cryogenic globe valve, including valve body, valve gap, extension pipe, support, valve rod and handwheel, described valve body, valve gap, adds
Long tube, support are sequentially connected with, and described valve body, valve gap, extension pipe and support are hollow structure, and described valve body is provided with for flowing
The fluid passage of logical medium, described valve body includes that valve seat, described valve seat connect with described fluid passage, one end of described extension pipe
Connecting described valve gap, the other end of described extension pipe is connected with described support, and described valve stem part is built in described valve body, valve
Lid, extension pipe and support, one end of described valve rod stretches out from described support and is connected with described handwheel, another of described extension pipe
End is provided with filler, and described filler is coated on described valve rod, and the other end of described valve rod is provided with flap, and described flap is with described
Valve seat coordinates to seal described valve seat.
This utility model provide cryogenic globe valve, the distance between filler and handwheel and valve body be lengthened out pipe lengthen,
Thus the distance between the fluid media (medium) in filler and handwheel and valve body is lengthened out, filler and handwheel be not by fluid media (medium) low temperature
Impact, it is possible to normally work, it is to avoid filler ruptures because low temperature corrodes or loses sealing, can avoid handwheel simultaneously
Because low temperature contact causes the too low human body of burning of temperature.
Preferably, a length of the 90～260mm of described extension pipe.
For different bores and the cryogenic globe valve of different medium temperature, the length of extension pipe has different selections, its choosing
The scope of selecting is 90～260mm.
Preferably, described extension pipe is provided with seal receptacle with the junction of described valve gap, and described sealed socket sleeve is located at described
The outer surface of valve rod is to seal the junction of described extension pipe and described valve gap.
The setting of seal receptacle, has completely cut off the cryogen medium in valve body further, prevent valve rod rise, flap from
During valve opening seat, the fluid media (medium) of low temperature is by entering extension pipe after valve seat.
Preferably, it is connected by screw bolt and nut between described valve body and described valve gap.
Screw bolt and nut connects, and can freely adjust the tightness of connection.
Preferably, it is provided with pad between described valve body and described valve gap.
Pad can increase the sealing between valve body and valve gap, prevents fluid media (medium) from spilling, causes a hidden trouble.
Preferably, described pad is politef rustless steel or soft graphite.
Preferably, described support is fixedly connected with valve stem nut, and one end of described valve rod is provided with and described valve stem nut
The screw thread coordinated, one end of described valve rod is connected with described valve stem nut.
Preferably, described cryogenic globe valve also includes gland, one end of described gland and described extension pipe
The other end connects, and the other end of described gland is connected with described support, and described gland contacts with described filler.
Preferably, described gland is connected by screw bolt and nut with the other end of described extension pipe.
The beneficial effects of the utility model: this utility model provide cryogenic globe valve include valve body, valve gap, extension pipe,
Support, valve rod and handwheel, described valve body, valve gap, extension pipe, support are sequentially connected with.By the design of extension pipe, low temperature is cut
Only the handwheel of valve and filler are away from cryogenic media, thus the low temperature of medium does not interferes with filler and handwheel, it is to avoid the medium of low temperature
Make handwheel temperature burn human body after reducing, avoid physics and the chemical property of the medium influence filler of low temperature simultaneously, prevent from filling out
Material fracture failure.
Additionally, the medium that the setting of seal receptacle blocks low temperature enters in extension pipe, further enhance temperature isolation
Effect.
For making above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 is the half section structural representation of the cryogenic globe valve that this utility model embodiment provides.
Main element symbol description:
Valve body 110, fluid passage 111, valve seat 112, valve gap 120, extension pipe 130, support 140, valve rod 150,
Flap 151, valve stem nut 152, handwheel 160, filler 170, gland 171, seal receptacle 180, pad 190, bolt
210, nut 211.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and
The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of this utility model protection.
Refer to Fig. 1, be the structural representation of the cryogenic globe valve that this utility model embodiment provides.
The cryogenic globe valve that this utility model embodiment provides includes valve body 110, valve gap 120, extension pipe 130, support
140, valve rod 150 and handwheel 160.Valve body 110, valve gap 120, extension pipe 130 and support 140 are hollow structure.Valve body 110 sets
Being equipped with the fluid passage 111 for circulation medium, medium can be ethylene, propylene, propane, ethane, acetylene, methane, liquid oxygen, liquid
The media such as hydrogen, liquefied natural gas, liquefied petroleum.Valve body 110 includes that valve seat 112, described valve seat 112 connect with fluid passage 111.
Wherein, valve body 110 is connected with one end of valve gap 120, and valve body 110 and valve gap 120 are preferably by bolt 210 and spiral shell
Female 211 modes coordinated are fixing to be connected, and wherein, bolt 210 runs through valve body 110 and valve gap 120, and the quantity of nut 211 is two,
It is respectively sleeved at the two ends of bolt 210 to screw valve body 110 and valve gap 120.
Further, being provided with pad 190 between valve body 110 and valve gap 120, pad 190 can increase valve body 110 and valve
Sealing between lid 120, prevents fluid media (medium) from spilling, it is preferable that pad 190 uses politef rustless steel or flexible stone
Ink is made, and sealing effectiveness is more preferable.
The other end of valve gap 120 is connected with one end of extension pipe 130, in this utility model embodiment, extension pipe 130 with
Linking together by the way of welding between valve gap 120, extension pipe 130 can be understood as a part for valve gap 120, simply
Original valve gap 120 is increased.The other end of extension pipe 130 is connected with one end of described support 140.In valve rod 150 part
It is placed in valve body 110, valve gap 120, extension pipe 130 and support 140, i.e. valve rod 150 and runs through valve body 110, valve gap 120, extension pipe 130
With support 140.One end of valve rod 150 is stretched out from support 140 and is connected with handwheel 160.Valve rod 150 is rising threshold rod-type, valve rod
150 do together with handwheel 160 and rotate and ascending motion.Preferably, the other end at support 140 is fixedly connected with valve stem nut
152, one end of valve rod 150 is provided with the screw thread coordinated with valve stem nut 152, and one end of valve rod 150 is with valve stem nut 152 even
Connecing, owing to valve stem nut 152 is fixed on support 140, when rotation hand wheel 160 band ovable valve stem 150 rotates, valve rod 150 rises
Or decline.
Extension pipe 130 away from valve body 110 one end be internally provided with filler 170, it is preferable that arrange in extension pipe 130
Stuffing-box, filler 170 is had to be arranged in stuffing-box.This filler 170 is coated on the outer surface of valve rod 150.Owing to valve rod 150 is can
Moving part, so valve rod 150 is susceptible to the phenomenon that leaks outside, filler 170 is for sealing valve rod 150, and filler 170 typically uses
Compression material makes, and produces transverse pressure for valve rod 150, when the transverse pressure of valve rod 150 is more than or equal to be situated between by filler 170
During the pressure that matter produces, then filler 170 can play sealing function.In this utility model embodiment, filler 170 uses flexibility
Graphite or politef are made, and intensity is high, and anti-seismic design highlights, it is not easy to broken.Preferably, at extension pipe
Being also associated with gland 171 between 130 and support 140, one end of this gland 171 connects with the other end of extension pipe 130
Connecing, the other end of gland 171 is connected with support 140, described gland 171 stretch in stuffing-box with described filler 170
Contact is to compress filler 170.As preferably, in the present embodiment, between gland 171 and extension pipe 130, pass through bolt
Cooperation with nut is attached.
The other end of valve rod 150 is provided with flap 151, and this flap 151 coordinates with the valve seat 112 of valve body 110, when turning hands
Wheel 160 makes valve rod 150 decline, and when flap 151 and valve seat 112 are in close contact, sealing surface coincide, then valve seat 112 and fluid passage
Being sealed between 111, the medium of fluid passage 111 is isolated can not pass through valve seat 112；When valve rod 150 rises, flap 151 from
During valve opening seat 112, connect between valve seat 112 with fluid passage 111.
This utility model embodiment provide cryogenic globe valve, between filler 170 and handwheel 160 and valve body 110 away from
From being lengthened out, pipe 130 lengthens, thus the distance between the fluid media (medium) in filler 170 and handwheel 160 and valve body 110 is added
Long, filler 170 and handwheel 160 are not affected by fluid media (medium) low temperature, it is possible to normally work, it is to avoid filler 170 is because low temperature is invaded
Lose and rupture or lose sealing, handwheel 160 can be avoided because low temperature contact causes the too low human body of burning of temperature simultaneously.
General cryogenic globe valve Cold-keeping Layer is thicker, and the setting of extension pipe 130 also ensure that the space that cold insulation is constructed, and fills out
Material gland 171 is arranged on outside Cold-keeping Layer, when adding the screw bolt and nut of filler 170 and fastening gland 171, it is not necessary to destroy
Cold-keeping Layer.
The length of extension pipe 130 has certain requirement, and extension pipe 130 is too short, then cannot play and effectively completely cut off temperature
Effect, extension pipe 130 is long, then the length of valve rod 150 increases therewith, and the dynamics that supports of valve rod 150 is unstable, flap 151 with
Sealing between valve seat 112 weakens, and also wastes raw material simultaneously.Through the discovery that studies for a long period of time of inventor, extension pipe 130
Length is optimum length between 90～260mm, ensures sealing while ensureing isolation temperature.
According to different bores and the temperature of circulation medium, the length of extension pipe 130 has different requirements, is specifically referred to
Table 1.
Table 1
In the cryogenic globe valve that this utility model embodiment provides, extension pipe 130 is provided with close with the junction of valve gap 120
Envelope seat 180, this seal receptacle 180 is sheathed on the outer surface of valve rod 150 to seal the junction of extension pipe 130 and valve gap 120.Seal
Seat 180 setting, completely cut off the cryogen medium in valve body 110 further, prevented from rising at valve rod 150, flap 151 from
During valve opening seat 112, the fluid media (medium) of low temperature is by entering extension pipe 130 after valve seat 112.Seal receptacle 180 fluid resistance is little, seals
Face is washed away low with erosion degree by fluid media (medium).
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put during the use of this utility model product, is for only for ease of description this utility model and letter
Change describe rather than instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for district
Divide and describe, and it is not intended that indicate or hint relative importance.
Additionally, the term such as term " level ", " vertically ", " pendency " is not offered as requiring parts abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to for its direction relatively " vertically " more level, it it is not this structure of expression
Must be perfectly level, but can be slightly tilted.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " installation ", " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect,
Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, can be the connection of two element internals.For the ordinary skill in the art, can manage with concrete condition
Solve above-mentioned term concrete meaning in this utility model.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.It should be noted that
Arrive: similar label and letter represent similar terms in following accompanying drawing, therefore, are determined in the most a certain Xiang Yi accompanying drawing
Justice, then need not define it further and explain in accompanying drawing subsequently.
Claims (10)
1. a cryogenic globe valve, it is characterised in that include valve body, valve gap, extension pipe, support, valve rod and handwheel, described valve
Body, valve gap, extension pipe, support are sequentially connected with, and described valve body, valve gap, extension pipe and support are hollow structure, and described valve body sets
Being equipped with the fluid passage for circulation medium, described valve body includes that valve seat, described valve seat connect with described fluid passage, described in add
One end of long tube connects described valve gap, and the other end of described extension pipe is connected with described support, and described valve stem part is built in institute
Stating valve body, valve gap, extension pipe and support, one end of described valve rod is stretched out from described support and is connected with described handwheel, described in add
The other end of long tube is provided with filler, and described filler is coated on described valve rod, and the other end of described valve rod is provided with flap, described
Flap coordinates with described valve seat to seal described valve seat.
Cryogenic globe valve the most according to claim 1, it is characterised in that a length of the 90 of described extension pipe～260mm.
Cryogenic globe valve the most according to claim 1, it is characterised in that described extension pipe sets with the junction of described valve gap
Being equipped with seal receptacle, described sealed socket sleeve is located at the outer surface of described valve rod to seal the connection of described extension pipe and described valve gap
Place.
Cryogenic globe valve the most according to claim 1, it is characterised in that pass through bolt between described valve body and described valve gap
Connect with nut screw connection.
Cryogenic globe valve the most according to claim 1, it is characterised in that be provided with pad between described valve body and described valve gap
Sheet.
Cryogenic globe valve the most according to claim 5, it is characterised in that described pad is politef rustless steel or soft
Property graphite.
Cryogenic globe valve the most according to claim 1, it is characterised in that described support is fixedly connected with valve stem nut, institute
The one end stating valve rod is provided with the screw thread coordinated with described valve stem nut, and one end of described valve rod is connected with described valve stem nut.
Cryogenic globe valve the most according to claim 1, it is characterised in that also include gland, described gland
One end is connected with the other end of described extension pipe, and the other end of described gland is connected with described support, described gland
Contact with described filler.
Cryogenic globe valve the most according to claim 8, it is characterised in that another of described gland and described extension pipe
End is connected by screw bolt and nut.
Cryogenic globe valve the most according to claim 1, it is characterised in that described filler is by soft graphite or polytetrafluoro
Ethylene is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515417.6U CN205859177U (en) | 2016-05-31 | 2016-05-31 | A kind of cryogenic globe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515417.6U CN205859177U (en) | 2016-05-31 | 2016-05-31 | A kind of cryogenic globe valve |
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| Publication Number | Publication Date |
|---|---|
| CN205859177U true CN205859177U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620515417.6U Active CN205859177U (en) | 2016-05-31 | 2016-05-31 | A kind of cryogenic globe valve |
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| CN (1) | CN205859177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927958A (en) * | 2020-08-03 | 2020-11-13 | 江苏圣泰阀门有限公司 | Low-temperature lengthened stop valve |
| CN113983214A (en) * | 2021-10-20 | 2022-01-28 | 上海沪东造船阀门有限公司 | Manual switch ultra-low temperature stop check valve |
-
2016
- 2016-05-31 CN CN201620515417.6U patent/CN205859177U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927958A (en) * | 2020-08-03 | 2020-11-13 | 江苏圣泰阀门有限公司 | Low-temperature lengthened stop valve |
| CN113983214A (en) * | 2021-10-20 | 2022-01-28 | 上海沪东造船阀门有限公司 | Manual switch ultra-low temperature stop check valve |
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| GR01 | Patent grant |