CN201636340U - Ultra-low temperature valve - Google Patents
Ultra-low temperature valve Download PDFInfo
- Publication number
- CN201636340U CN201636340U CN2010201700959U CN201020170095U CN201636340U CN 201636340 U CN201636340 U CN 201636340U CN 2010201700959 U CN2010201700959 U CN 2010201700959U CN 201020170095 U CN201020170095 U CN 201020170095U CN 201636340 U CN201636340 U CN 201636340U
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- valve
- sealing ring
- ultra
- low temperature
- acrosome
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Abstract
The utility model relates to an ultra-low temperature valve which comprises a valve body, a valve cap, a valve body outer nut used for fixing the valve cover on the valve body, a valve rod and a valve body assembly arranged at the lower end of the valve cap, wherein the valve body assembly comprises a valve top body and a lower sealing ring fixed at the lower end of the valve top body, the upper end of the valve top body is provided with an upper sealing ring, the lower end surface of the valve cap is correspondingly provided with a rigid sealing groove used for accommodating the upper sealing ring. When the ultra-low temperature valve is in an opening state, the valve top body is in the topmost state, the upper sealing ring at the upper end of the valve top body is correspondingly arranged in the rigid sealing groove at the lower end surface of the valve cap and plays a part in sealing. The ultra-low temperature valve adopts the way that the rigid sealing groove is arranged at the lower end surface of the valve cap and combined with the upper sealing ring arranged at the top end of the valve top body, thus skillfully solving the problem of liquid leakage in the opening state and having the advantages of simple and practical structure, low cost and convenient later maintenance.
Description
Technical field
The utility model belongs to the device security technical field, relates in particular to a kind of ultralow temperature valve.
Background technique
The ultralow temperature valve mainly is meant and is used for the valve that the medium operating temperature is lower than-100 ℃, is mainly used in storage and transmission cryogenic liquide, and based on its specific use, the ultralow temperature valve is high for sealing requirements, does not allow to reveal.The ultralow temperature valve sealing means of prior art mainly relies on the lower seal of valve acrosome lower end surface, and when valve was in closed condition, lower seal can stop the fluid in the container to leak.But when valve is in open state, promptly, when the valve acrosome is in the upper state, can only rely on the interior pad or the stuffing box gland that are provided with between valve gap, valve stem casing and the valve rod to play seal action, as the patent No. is 200720311398, denomination of invention is the utility model patent of " high pressure ultralow temperature hand stop valve ", comprises valve seat, valve body, valve gap, spool and control gear, and control gear comprises handle, screw rod, swivel nut and valve rod; One end and the handle of valve rod are connected, the other end of valve rod passes spool back and in the valve body and is connected from the valve gap center, between valve rod and the valve body seal arrangement is set, seal arrangement comprises Packing seat, filler, filler gland and the Gland that sets gradually from inside to outside, and the further again clear and definite described filler of this model utility is a plastic hoop simultaneously.
This class valve long-term open, in the closed using process, pad or stuffing box gland phenomenon such as unavoidably can occur wearing out, become flexible finally causes the container inner fluid to leak in these, because liquid leakage, the outside meeting of valve frosting, valve internal freezes card, causes valve invalidation.
The model utility content
The utility model purpose is to provide a kind of simple in structure, practical ultralow temperature valve, and it is poorly sealed when opening to solve existing Subzero valve, problems such as leaked liquid.
For achieving the above object, the technological scheme that the utility model adopted is: a kind of ultralow temperature valve, the valve component that comprises valve body, valve gap, valve gap is fixed in valve body outer nut, the valve rod on the valve body and is installed on the valve gap lower end, described valve component comprises the valve acrosome and is fixed in the lower seal of described valve acrosome lower end, described valve acrosome upper end is provided with seal ring, corresponding the valve gap lower end surface be provided be used to hold described on the rigid seal groove of seal ring.When the ultralow temperature valve was in open state, the valve acrosome was in the upper state, and the last seal ring of valve acrosome upper end correspondingly places in the rigid seal groove of valve gap lower end surface, plays the effect of sealing.
Further, last seal ring adopts elastic material to make, and can strengthen sealing effectively.
The beneficial effects of the utility model are: by in the valve gap lower end surface rigid seal groove being set, mode in conjunction with the last seal ring that is provided with on the valve acrosome, solved the fluid leakage problems of ultralow temperature valve when open state dexterously, this is simple and practical, the low and convenient later maintenance of cost.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the seal arrangement part schematic representation of ultralow temperature valve described in the utility model.
Embodiment
As shown in Figure 1, a kind of ultralow temperature valve, comprise valve body 1, valve gap 2, valve gap 2 is fixed in valve body outer nut 6, valve rod 3 on the valve body 1 and the valve component that is installed on valve gap 2 lower ends, described valve component comprises valve acrosome 5 and is fixed in the lower seal 4 of described valve acrosome 5 lower ends, described valve acrosome upper end is provided with seal ring 7, corresponding valve gap 2 lower end surfaces be provided be used to hold described on the rigid seal groove 8 of seal ring 7.When the ultralow temperature valve was in open state, valve acrosome 5 was in the upper state, and the last seal ring 7 of valve acrosome 5 upper ends correspondingly places in the rigid seal groove 8 of valve gap 2 lower end surfaces, plays the effect of sealing.When the ultralow temperature valve was in closed state, valve acrosome 5 was in the most the next state, and the lower seal 4 of the lower end of valve acrosome 5 plays seal action at this moment.The described seal ring 7 of going up adopts elastic material to make, and can strengthen sealing effectively.
The utility model is not limited to the foregoing description; to those skilled in the art, any conspicuous improvement that the foregoing description of the present utility model is made or change can not exceed the embodiment of the present utility model that only illustrates by way of example and the protection domain of claims.
Claims (2)
1. ultralow temperature valve, comprise valve body (1), valve gap (2), be used for valve gap (2) is fixed in valve body outer nut (6), valve rod (3) on the valve body (1) and the valve component that is installed on valve gap (2) lower end, described valve component comprises valve acrosome (5) and is fixed in the lower seal (4) of described valve acrosome (5) lower end, it is characterized in that: described valve acrosome (5) upper end is provided with seal ring (7), is provided with in valve gap (2) lower end surface accordingly to be used to hold the described rigid seal groove (8) of going up seal ring (7).
2. ultralow temperature valve as claimed in claim 1 is characterized in that: the described seal ring of going up is made by elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700959U CN201636340U (en) | 2010-04-26 | 2010-04-26 | Ultra-low temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700959U CN201636340U (en) | 2010-04-26 | 2010-04-26 | Ultra-low temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636340U true CN201636340U (en) | 2010-11-17 |
Family
ID=43080832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201700959U Expired - Fee Related CN201636340U (en) | 2010-04-26 | 2010-04-26 | Ultra-low temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636340U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470779A (en) * | 2013-09-17 | 2013-12-25 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) large-caliber high-pressure balanced shut-off valve |
| WO2014063616A1 (en) * | 2012-10-22 | 2014-05-01 | 费希尔久安输配设备(成都)有限公司 | Valve stem and valve core assembly and valve comprising assembly |
| CN105508626A (en) * | 2015-12-22 | 2016-04-20 | 四川省内江巨星水暖气五金器材厂 | Stop valve for low-temperature liquid container and assembly method of stop valve |
| CN106246941A (en) * | 2016-08-30 | 2016-12-21 | 双恒阀门集团有限公司 | Ultralow temperature special type special service valve |
-
2010
- 2010-04-26 CN CN2010201700959U patent/CN201636340U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063616A1 (en) * | 2012-10-22 | 2014-05-01 | 费希尔久安输配设备(成都)有限公司 | Valve stem and valve core assembly and valve comprising assembly |
| US10281052B2 (en) | 2012-10-22 | 2019-05-07 | Emerson Process Management Regulator Technologies, Inc. | Valve stem and valve core assembly and valve comprising the assembly |
| CN103470779A (en) * | 2013-09-17 | 2013-12-25 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) large-caliber high-pressure balanced shut-off valve |
| CN103470779B (en) * | 2013-09-17 | 2017-01-18 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) large-caliber high-pressure balanced shut-off valve |
| CN105508626A (en) * | 2015-12-22 | 2016-04-20 | 四川省内江巨星水暖气五金器材厂 | Stop valve for low-temperature liquid container and assembly method of stop valve |
| CN106246941A (en) * | 2016-08-30 | 2016-12-21 | 双恒阀门集团有限公司 | Ultralow temperature special type special service valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120426 |