CN204878815U - Ultra -low temperature ball valve - Google Patents
Ultra -low temperature ball valve Download PDFInfo
- Publication number
- CN204878815U CN204878815U CN201520407073.2U CN201520407073U CN204878815U CN 204878815 U CN204878815 U CN 204878815U CN 201520407073 U CN201520407073 U CN 201520407073U CN 204878815 U CN204878815 U CN 204878815U
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- valve
- spheroid
- mounting hole
- gap
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Abstract
The utility model relates to a ball valve, in particular to ultra -low temperature ball valve. The utility model provides a following technical scheme: an ultra -low temperature ball valve, which comprises a valve body, a valve cove, locate the medium admission passage on the valve body, medium outflow passageway and spheroid installation cavity, be equipped with in the spheroid installation cavity spheroid and with ball sealing's disk seat, interface channel has been seted up on the spheroid, be equipped with the mounting hole that switches on with the spheroid installation cavity on the valve gap, it extends to outside the mounting hole to be equipped with one end in the mounting hole, the other end extends to the valve rod in the spheroid installation cavity, the valve rod extends the outer one end of mounting hole and is equipped with the driving source rather than the linkage, spheroidal transversal personally submitting " C " font, one side of interface channel is opening form setting on it, the disk seat is located between spheroid installation cavity and the medium outflow passageway, set up respectively the drainage hole that switches on with mounting hole and medium admission passage on the valve gap. Adopt above -mentioned technical scheme, provide that the difference in temperature is balanced, safe in utilization, simple structure's ultra -low temperature ball valve.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of ultra-low temperature ball valve.
Background technique
Ultra-low temperature ball valve is mainly used in the device of LNG Liquefied natural gas, liquefied petroleum gas (LPG) and Air separation industry, and dispensing liquid cryogenic media is primarily of liquid oxygen, liquid hydrogen, LNG Liquefied natural gas and liquefied petroleum etc.
Traditional ultra-low temperature ball valve is primarily of valve body, valve gap, the medium inlet passage be located on valve body, medium flow pass and connection chamber, be provided with spheroid and the valve seat with ball seal in connection chamber, valve gap is provided with the driving source extending to valve rod in connection chamber and actuate valve stem.
The valve pocket of this type of ball valve and pipeline and the temperature difference between valve body and valve gap are difficult to control, and the pressure in valve body cannot realize controlling accurately, and valve body gently then can be caused normally to use, heavy then valve body can be caused to burst, and there is larger potential safety hazard.
Summary of the invention
For the deficiency that prior art exists, the utility model provides a kind of temperature difference balance, use safety, the simple ultra-low temperature ball valve of structure.
For achieving the above object, the utility model provides following technological scheme: a kind of ultra-low temperature ball valve, include valve body, valve gap, be located at the medium inlet passage on valve body, medium flow pass and sphere installation chamber, spheroid and the valve seat with ball seal is provided with in sphere installation chamber, spheroid offers connecting passage, valve gap is provided with the mounting hole with the conducting of sphere installation chamber, being provided with one end in mounting hole extends to outside mounting hole, the other end extends to the valve rod in sphere installation chamber, one end that valve rod extends outside mounting hole is provided with the driving source with its interlock, it is characterized in that: the cross section of described spheroid is in " C " font, the opening-like setting in the side of connecting passage on it, described valve seat is located between sphere installation chamber and medium flow pass, described valve gap offers the conduction hole respectively with mounting hole and the conducting of medium inlet passage.
Adopt technique scheme, by the connecting passage side of spheroid is set to opening shape, make its can completely and medium inlet passage or medium flow out channel conductive, indirectly impel this valve body without the need to arranging the connection chamber of transhipment medium, the inside of valve body is directly connected with pipeline, avoid between pipeline and valve inner and there is the temperature difference and pressure reduction, the potential safety hazard existed when eliminating use, on valve gap, the setting of conduction hole can avoid there is the temperature difference and pressure reduction between valve gap and valve body simultaneously.
The utility model is set to further: the connectivity part in medium flow pass and sphere installation chamber offers installation gap, and valve seat is located in this installation gap, and one end of valve seat is provided with the sealing gasket with ball seal, and the other end is provided with the lip packing with valve seal.
Adopt technique scheme, good airproof performance is set like this, effectively can improves the sealability of valve body.
The utility model is further set to: the joint of valve body and valve gap is provided with the construction opening put into for spheroid, and valve gap is fixedly arranged on this construction opening place by fastening piece.
Adopt technique scheme, arrange like this and be convenient to implement dismounting to valve body.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the I portion enlarged diagram of Fig. 1.
Embodiment
As Fig. 1, a kind of ultra-low temperature ball valve shown in Fig. 2, include valve body 1, valve gap 2, be located at the medium inlet passage 11 on valve body 1, medium flow pass 12 and sphere installation chamber 13, the valve seat 4 being provided with spheroid 3 in sphere installation chamber 13 and sealing with spheroid 3, spheroid 3 offers connecting passage 31, valve gap 2 is provided with the mounting hole 21 with sphere installation chamber 13 conducting, being provided with one end in mounting hole 21 extends to outside mounting hole 21, the other end extends to the valve rod 5 in sphere installation chamber 13, valve rod 5 one end extended outside mounting hole 21 is provided with the driving source 6 with its interlock, this driving source can be motor, also can be handwheel, the cross section of spheroid 3 is in " C " font, the opening-like setting in the side of connecting passage 31 on it, valve seat 4 is located between sphere installation chamber 13 and medium flow pass 12, valve gap 2 offers the conduction hole 22 respectively with mounting hole 21 and medium inlet passage 11 conducting.In such scheme, by connecting passage 31 side of spheroid 3 is set to opening shape, make it can completely and medium inlet passage 11 or medium flow pass 12 conducting, indirectly impel this valve body 1 without the need to arranging the connection chamber of transhipment medium, the inside of valve body 1 is directly connected with pipeline, avoid between pipeline and valve body 1 inside and there is the temperature difference and pressure reduction, the potential safety hazard existed when eliminating use, on valve gap 2, the setting of conduction hole 22 can avoid there is the temperature difference and pressure reduction between valve gap 2 and valve body 1 simultaneously.
In the utility model embodiment, in order to ensure the sealability of valve body 1, prevent valve body 1 from occurring leaking, medium flow pass 12 offers installation gap 121 with the connectivity part in sphere installation chamber 13, valve seat 4 is located in this installation gap 121, one end of valve seat 4 is provided with the sealing gasket 41 sealed with spheroid 3, and the other end is provided with the lip packing 42 sealed with valve body 1.
For the ease of the dismounting to spheroid 3 and valve gap 2, valve body 1 is provided with the joint of valve gap 2 construction opening 14 put into for spheroid 3, and valve gap 2 is fixedly arranged on this construction opening 14 place by fastening piece 7.Fastening piece 7 can be adpting flange, also can be clamping bolt, is all feasible.
Claims (3)
1. a ultra-low temperature ball valve, include valve body, valve gap, be located at the medium inlet passage on valve body, medium flow pass and sphere installation chamber, spheroid and the valve seat with ball seal is provided with in sphere installation chamber, spheroid offers connecting passage, valve gap is provided with the mounting hole with the conducting of sphere installation chamber, being provided with one end in mounting hole extends to outside mounting hole, the other end extends to the valve rod in sphere installation chamber, one end that valve rod extends outside mounting hole is provided with the driving source with its interlock, it is characterized in that: the cross section of described spheroid is in " C " font, the opening-like setting in the side of connecting passage on it, described valve seat is located between sphere installation chamber and medium flow pass, described valve gap offers the conduction hole respectively with mounting hole and the conducting of medium inlet passage.
2. ultra-low temperature ball valve according to claim 1, it is characterized in that: described medium flow pass and the connectivity part in sphere installation chamber offer installation gap, valve seat is located in this installation gap, one end of valve seat is provided with the sealing gasket with ball seal, and the other end is provided with the lip packing with valve seal.
3. ultra-low temperature ball valve according to claim 1 and 2, is characterized in that: described valve body and the joint of valve gap are provided with the construction opening put into for spheroid, and valve gap is fixedly arranged on this construction opening place by fastening piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407073.2U CN204878815U (en) | 2015-06-12 | 2015-06-12 | Ultra -low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407073.2U CN204878815U (en) | 2015-06-12 | 2015-06-12 | Ultra -low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878815U true CN204878815U (en) | 2015-12-16 |
Family
ID=54823189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407073.2U Expired - Fee Related CN204878815U (en) | 2015-06-12 | 2015-06-12 | Ultra -low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878815U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420575A (en) * | 2017-08-09 | 2017-12-01 | 湖北泰和石化设备有限公司 | Upper dress formula full-bore LNG soft seal zero leakage two-way valves |
| CN111059313A (en) * | 2018-10-17 | 2020-04-24 | 东京流量仪器仪表株式会社 | Ball valve |
| CN112283384A (en) * | 2020-10-28 | 2021-01-29 | 凯喜姆阀门有限公司 | Valve rod blowout prevention ball outlet valve |
-
2015
- 2015-06-12 CN CN201520407073.2U patent/CN204878815U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420575A (en) * | 2017-08-09 | 2017-12-01 | 湖北泰和石化设备有限公司 | Upper dress formula full-bore LNG soft seal zero leakage two-way valves |
| CN111059313A (en) * | 2018-10-17 | 2020-04-24 | 东京流量仪器仪表株式会社 | Ball valve |
| CN112283384A (en) * | 2020-10-28 | 2021-01-29 | 凯喜姆阀门有限公司 | Valve rod blowout prevention ball outlet valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20170612 |