CN207122606U - A kind of upper dress formula fixing ball valve for being resistant to worst cold case - Google Patents
A kind of upper dress formula fixing ball valve for being resistant to worst cold case Download PDFInfo
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- CN207122606U CN207122606U CN201720853806.4U CN201720853806U CN207122606U CN 207122606 U CN207122606 U CN 207122606U CN 201720853806 U CN201720853806 U CN 201720853806U CN 207122606 U CN207122606 U CN 207122606U
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Abstract
It the utility model is related to a kind of upper dress formula fixing ball valve for being resistant to worst cold case, including valve body, spheroid, valve component, valve rod, bonnet, it is characterised in that the end surface symmetric of the end face of body cavity or so passage and spheroid or so passage is processed into the inclined-plane with 37 ° of angles of wedge；Valve component is by valve seat body, is arranged on the sealing ring being engaged in valve seat body with spheroid and is arranged on accumulation of energy ring in valve seat annular groove and form, and the both sides of accumulation of energy ring are against between annular groove and channel of valve body inner cavity end face respectively.It is characterized in that the installation and removal of upper-mounting type ball valve are convenient, spheroid realizes automatic centering when being installed with valve component, and installation operation is simple, ensures sealing effectiveness.The design of energy-storage type valve component, the sealing property of ball valve is further increased, ensure ball valve safe and reliable operation under the conditions of worst cold case.
Description
Technical field
A kind of valve is the utility model is related to, particularly a kind of upper dress formula fixing ball valve for being resistant to worst cold case.
Background technology
At present, the ball valve in the low temperature piping such as LNG, LPG, LEG, mostly side-mounted floating ball valve or side-mounted solid are applied
Determine ball valve.Wherein, it is more in floating ball valve structure to be embedded in using valve seat in valve body, directly extrude to form sealing pair with spheroid, this
When kind structure runs into temperature change, sealing pair gap value can change, and sealing is unreliable.Fixing ball valve overcomes floating ball valve
Deficiency, made up by groups of springs elastic seat expand with heat and contract with cold caused by gap change.But the ball valve of side-mounted structure is all present
The problem of being not easy to on-line maintenance is, it is necessary to which integral demounting ball valve is repaired, and neither easy to operation, influence pipeline is safe again.
Some upper-mounting type ball valves have can be with on-line maintenance the characteristics of, but do not have backlash compensation mounted in the valve seat between spheroid and valve body
Function, gap is also easy to produce between worst cold case condition lower sphere and valve seat, valve seat and valve body, influences sealing effectiveness.
The content of the invention
The purpose of this utility model is that provide one kind can be achieved backlash compensation under the conditions of worst cold case, and sealing property can
That leans on is resistant to the upper dress formula fixing ball valve of worst cold case.
Technical solution of the present utility model is：A kind of upper dress formula fixing ball valve for being resistant to worst cold case, including valve body,
Spheroid, valve component, valve rod, bonnet, it is characterised in that the end surface symmetric of body cavity or so passage is processed into 3-7 ° of wedge
The inclined-plane at angle；The end face of spheroid or so passage also symmetrical machining into the inclined-plane with the 3-7 ° of angle of wedge；Valve component is by valve seat sheet
Body, it is arranged on the sealing ring being engaged in valve seat body with spheroid and is arranged on accumulation of energy ring composition, accumulation of energy in valve seat annular groove
The both sides of ring are against between annular groove and channel of valve body inner cavity end face respectively.
The accumulation of energy ring that described accumulation of energy ring is spiral shape accumulation of energy ring or section is V-arrangement, its outer surface set encapsulant
Layer.
The utility model is by by the end face pair of the end face of body cavity or so passage and corresponding spheroid or so passage
Title is processed into the inclined-plane with the 3-7 ° of angle of wedge so that the spheroid of upper-mounting type ball valve being capable of easily installing/dismounting, and installing
During spheroid, spheroid and valve component automatic centering are realized.Valve component is using three accumulation of energy ring, valve seat body, sealing ring portions
The Combination Design of part, spring force caused by the compression of accumulation of energy ring can both provide valve component and the sealing force needed for valve seal,
And can enough provides part sealing force between valve component and spheroid, while the self-regulation of accumulation of energy ring decrement, and can compensation heat expansion
Gap value caused by shrinkage changes, so as to ensure ball valve sealed reliable under the conditions of worst cold case.
The characteristics of the utility model is：The installation and removal of upper-mounting type ball valve are convenient, real when spheroid is installed with valve component
Automatic centering is showed, installation operation is simple, ensures sealing effectiveness.The design of energy-storage type valve component, realizes valve body and valve seat
Backlash compensation between component, valve component and spheroid, the sealing property of ball valve is further increased, ensure ball valve in low temperature work
Safe and reliable operation under the conditions of condition.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 close-up schematic view.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, 2, upper dress formula fixing ball valve mainly by valve body 1, spheroid 2, valve component 3, valve rod 4, bonnet 5,
The assembling of the grade of bearing holder (housing, cover) 9 part is formed, and part same as the prior art repeats no more.By the end face 11 of body cavity or so passage
Into the inclined-plane with the 3-7 ° of angle of wedge, the present embodiment it is 5 ° of angles of wedge with the 12 equal symmetrical machining of end face of spheroid or so passage, both facilitated
Spheroid is attached in valve body above valve body, realizes the automatic centering of spheroid and valve component again, installation operation is simple.Valve
Holder assembly 3 is made up of the valve seat body 6 of ring-type, sealing ring 7 and accumulation of energy ring 8, the valve seat body side position relative with spheroid
Locate embedded sealing ring 7, sealing ring cooperatively forms sealing with spheroid.The opposite side of valve seat body is relative with channel of valve body inner cavity end face
Opening position be provided with annular groove 10, accumulation of energy ring is located in annular groove, and its both sides is against in annular groove and valve body respectively
Between chamber channel end surface.Accumulation of energy ring section in figure is V-arrangement, and accumulation of energy ring is made of spring leaf, and its surface sets one layer of fluorine tree
Fat encapsulant or other materials, sealing is cooperatively formed with channel of valve body inner cavity end face.Compressed and produced by accumulation of energy ring 8
Raw spring force provides required sealing force for valve component and valve seal；Also provided simultaneously for valve component and ball seal
Part sealing force；Spheroid and valve component, valve component caused by expanding with heat and contract with cold are compensated using the self-regulation of accumulation of energy ring decrement
Gap value change between valve body, so as to ensure the reliability of ball valve sealing under the conditions of worst cold case.
Claims (2)
1. a kind of upper dress formula fixing ball valve for being resistant to worst cold case, including valve body, spheroid, valve component, valve rod, bonnet, it is special
Sign is that the end surface symmetric of body cavity or so passage is processed into the inclined-plane with the 3-7 ° of angle of wedge；The end face of spheroid or so passage is also
Symmetrical machining is into the inclined-plane with the 3-7 ° of angle of wedge；Valve component is by valve seat body, is arranged in valve seat body and spheroid matching
The sealing ring of conjunction is formed with accumulation of energy ring in valve seat annular groove is arranged on, and the both sides of accumulation of energy ring are against annular groove and valve body respectively
Between bore passages end face.
A kind of 2. upper dress formula fixing ball valve for being resistant to worst cold case according to claim 1, it is characterised in that described storage
The accumulation of energy ring that energy ring is spiral shape accumulation of energy ring or section is V-arrangement, its outer surface set sealing material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720853806.4U CN207122606U (en) | 2017-07-14 | 2017-07-14 | A kind of upper dress formula fixing ball valve for being resistant to worst cold case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720853806.4U CN207122606U (en) | 2017-07-14 | 2017-07-14 | A kind of upper dress formula fixing ball valve for being resistant to worst cold case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122606U true CN207122606U (en) | 2018-03-20 |
Family
ID=61612168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720853806.4U Active CN207122606U (en) | 2017-07-14 | 2017-07-14 | A kind of upper dress formula fixing ball valve for being resistant to worst cold case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207122606U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107712A (en) * | 2019-05-27 | 2019-08-09 | 江苏神通阀门股份有限公司 | A kind of general plug structure of elastic packing |
| CN111055235A (en) * | 2019-11-26 | 2020-04-24 | 大连船用阀门有限公司 | Online assembly and disassembly tools of facial make-up ball valve |
| WO2021137995A1 (en) * | 2019-12-31 | 2021-07-08 | Saint-Gobain Performance Plastics Corporation | Design for a seat insert in a ball valve for cryogenic applications |
-
2017
- 2017-07-14 CN CN201720853806.4U patent/CN207122606U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107712A (en) * | 2019-05-27 | 2019-08-09 | 江苏神通阀门股份有限公司 | A kind of general plug structure of elastic packing |
| CN111055235A (en) * | 2019-11-26 | 2020-04-24 | 大连船用阀门有限公司 | Online assembly and disassembly tools of facial make-up ball valve |
| WO2021137995A1 (en) * | 2019-12-31 | 2021-07-08 | Saint-Gobain Performance Plastics Corporation | Design for a seat insert in a ball valve for cryogenic applications |
| US11326700B2 (en) | 2019-12-31 | 2022-05-10 | Saint-Gobain Performance Plastics Corporation | Seat insert in a ball valve for cryogenic applications |
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