CN203571092U - Ultra-low temperature ball valve - Google Patents
Ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN203571092U CN203571092U CN201320727138.2U CN201320727138U CN203571092U CN 203571092 U CN203571092 U CN 203571092U CN 201320727138 U CN201320727138 U CN 201320727138U CN 203571092 U CN203571092 U CN 203571092U
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- Prior art keywords
- valve
- low temperature
- ultra
- valve body
- temperature ball
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Abstract
The utility model relates to an ultra-low temperature ball valve. The ultra-low temperature ball valve comprises a valve body, a bonnet, a valve seat, a ball, a valve rod, a handle and a handle sleeve, wherein the ball is arranged in the middle of the valve body, the bonnet is arranged on the two sides of the valve body, the valve seat is arranged between the bonnet and the ball, the lower portion of the valve rod penetrates through the valve body, and is connected with the ball, the upper end of the valve rod is connected with the handle, the handle sleeve is arranged outside the handle, the bonnet is of a long neck structure, a heat insulating support is wrapped on the valve rod, the heat insulating support is filled with heat insulating materials, a spring coil is arranged at the position of connection between the valve body and the valve seat, and lower rod packing is arranged at the lower end of the heat insulating support. Due to the facts that the spring coil is arranged at the position of connection between the valve body and the valve seat, and the lower rod packing is arranged at the lower end of the heat insulating support, the dual-seal effect is achieved, and leakproofness and safety of the ultra-low temperature ball valve are ensured.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of ultra-low temperature ball valve.
Background technique
Subzero valve refers to the valve that can use under low temperature industrial and mineral, conventionally operating temperature is called to low temperature valve lower than the valve of-40 ℃.Subzero valve is one of indispensable visual plants of work such as petrochemical industry, air separation, rock gas, can the quality of its quality is determining safely, economical, produce constantly.As everyone knows, ball valve is widely used in the every field such as oil, chemical industry, iron and steel, metallurgy and electric power, between the valve seat and valve gap of existing ball valve, between Gland and valve rod, generally with rubber o-ring or graphite packing, seal, rubber o-ring can not high temperature resistant or ultralow temperature, although graphite can high-low temperature resistant but is unable to undergo switch, on-off times more than, the time is once long leakage.As elastic sealing elements, in valve manufacturing industry, have a wide range of applications, but existing rubber o-ring can not be used subzero 196 ℃.
Model utility content
Technical problem to be solved in the utility model is: the ultra-low temperature ball valve that a kind of long service life, good stability, resistance to ultralow temperature are provided.
The utility model solves technological scheme that its technical problem adopts: ultra-low temperature ball valve, comprise valve body, valve gap, valve seat, spheroid, valve rod, handle, taper knob, described spheroid is positioned in the middle of valve body, described valve gap is positioned at valve body both sides, between valve gap and spheroid, be provided with valve seat, described stem lower portion is connected with spheroid through valve body, valve rod upper end connecting handle, described handle outer is provided with taper knob, described valve gap is long-neck structure, described valve rod outer wrap has heat-insulation support, described heat-insulation support inside is filled with thermal insulating material, connection part between described valve body and valve seat is provided with spring coil, described heat-insulation support lower end is provided with filler under bar.
As preferably, the each joint of described ultra-low temperature ball valve is provided with seal ring and spring coil.
As preferably, described stem material is that the material that chromium plating or nitriding treatment are crossed is made.
As preferably, described valve inlet section is provided with Decompression valves.
The beneficial effects of the utility model are: valve gap is long-neck structure, its objective is the function of protection stuffing box, make stuffing box in the position away from from filler, guarantee the sealing of filler, can also be wound around cold insulation material simultaneously, prevent cold energy loss.Connection part between valve body and valve seat is provided with spring coil, and heat-insulation support lower end is provided with filler under bar, has realized double seal, has guaranteed sealing and the Security of ball valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-valve body, 2-valve gap, 3-valve seat, 4-spheroid, 5-valve rod, 6-handle, 7-taper knob, 8-heat-insulation support, 9-spring coil, filler under 10-bar, 11-seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, ultra-low temperature ball valve, comprise valve body 1, valve gap 2, valve seat 3, spheroid 4, valve rod 5, handle 6, taper knob 7, described spheroid 4 is positioned in the middle of valve body 1, described valve gap 2 is positioned at valve body 1 both sides, between valve gap 2 and spheroid 4, be provided with valve seat 3, described valve rod 5 bottoms are connected with spheroid 4 through valve body 1, valve rod 5 upper end connecting handles 6, described handle 6 outer installment have taper knob 7, described valve gap 2 is long-neck structure, described valve rod 5 outer wrap have heat-insulation support 8, described heat-insulation support 8 inside are filled with thermal insulating material, connection part between described valve body 1 and valve seat 3 is provided with spring coil 9, described heat-insulation support 8 lower ends are provided with filler 10 under bar.
Valve gap 2 is long-neck structure, its objective is the function of protection stuffing box, makes stuffing box in the position away from from filler, guarantees the sealing of filler, can also be wound around cold insulation material simultaneously, prevents cold energy loss.Connection part between valve body 1 and valve seat 3 is provided with spring coil 9, and heat-insulation support 8 lower ends are provided with filler 10 under bar.Realize double seal, guaranteed sealing and the Security of ball valve.The part at sealing position, when for-100 ℃, carries out cryogenic treatment before being preferably in fine finishing, be about to part soak in liquid nitrogen case, carry out cooling, when part temperature reaches-192 ℃, start to be incubated 1-2h, then take out the outer normal temperature of naturally processing of case, review circulation 2 times.
As a kind of optimal way, as shown in Figure 1, the each joint of described ultra-low temperature ball valve is provided with seal ring 11 and spring coil 9.Further increase sealing and the Security of ball valve.
In order to improve the using scope of ball valve, as preferred embodiment, described valve rod 5 materials are that the material that chromium plating or nitriding treatment are crossed is made.Through chromium plating or nitriding treatment, improve stem surface hardness, improve gland sealed reliability.
Cryogenic ball valve has and prevents from extremely boosting structure, and after the gasification of Subzero valve medium, its volume sharply expands, pressure can raise extremely, and when cavity pressure in valve raises, ball valve is more dangerous, in order to improve the Security of ball valve, described valve inlet section is provided with Decompression valves.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. ultra-low temperature ball valve, comprise valve body (1), valve gap (2), valve seat (3), spheroid (4), valve rod (5), handle (6), taper knob (7), described spheroid (4) is positioned in the middle of valve body (1), described valve gap (2) is positioned at valve body (1) both sides, between valve gap (2) and spheroid (4), be provided with valve seat (3), described valve rod (5) bottom is connected with spheroid (4) through valve body (1), valve rod (5) upper end connecting handle (6), described handle (6) outer installment has taper knob (7), it is characterized in that: described valve gap (2) is long-neck structure, described valve rod (5) outer wrap has heat-insulation support (8), described heat-insulation support (8) inside is filled with thermal insulating material, connection part between described valve body (1) and valve seat (3) is provided with spring coil (9), described heat-insulation support (8) lower end is provided with filler under bar (10).
2. ultra-low temperature ball valve according to claim 1, is characterized in that: the each joint of described ultra-low temperature ball valve is provided with seal ring (11) and spring coil (9).
3. ultra-low temperature ball valve according to claim 1 and 2, is characterized in that: described valve rod (5) material is that the material that chromium plating or nitriding treatment are crossed is made.
4. ultra-low temperature ball valve according to claim 3, is characterized in that: described valve inlet section is provided with Decompression valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727138.2U CN203571092U (en) | 2013-11-18 | 2013-11-18 | Ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727138.2U CN203571092U (en) | 2013-11-18 | 2013-11-18 | Ultra-low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571092U true CN203571092U (en) | 2014-04-30 |
Family
ID=50538824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727138.2U Expired - Fee Related CN203571092U (en) | 2013-11-18 | 2013-11-18 | Ultra-low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754164A (en) * | 2022-04-29 | 2022-07-15 | 重庆利特盛阀门有限公司 | Low-temperature valve and production line thereof |
-
2013
- 2013-11-18 CN CN201320727138.2U patent/CN203571092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754164A (en) * | 2022-04-29 | 2022-07-15 | 重庆利特盛阀门有限公司 | Low-temperature valve and production line thereof |
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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 |
Granted publication date: 20140430 Termination date: 20201118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |