CN202327272U - Rising stem type low-leakage high-sealing valve - Google Patents
Rising stem type low-leakage high-sealing valve Download PDFInfo
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- CN202327272U CN202327272U CN2011204089444U CN201120408944U CN202327272U CN 202327272 U CN202327272 U CN 202327272U CN 2011204089444 U CN2011204089444 U CN 2011204089444U CN 201120408944 U CN201120408944 U CN 201120408944U CN 202327272 U CN202327272 U CN 202327272U
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- valve
- rising stem
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- spring
- head shaft
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Abstract
The utility model discloses a rising stem type low-leakage high-sealing valve for a gas fire extinguishing system. The rising stem type low-leakage high-sealing valve is apparently inverted 'T'-shaped. Each of an inlet and an outlet is provided with an M14*1.5 thread, and is connected with a pipeline through the M14*1.5 thread. A spring is sleeved on the outlet section of a head shaft. A secondary sealing ring is sleeved in a head shaft sealing groove. The head shaft is arranged between a valve body and a three-way joint body. A primary sealing ring is used for keeping static seal for the assembly of the three-way joint body and the valve body. At ordinary times, the bottom of the head shaft contacts an outlet of the three-way joint body under the action of the spring; when the pipeline is filled with a medium, the medium enters a gap between the head shaft and the valve body through a channel in the three-way joint body, and is exhausted; when the flow of the medium exceeds a design value, the head shaft is driven to compress the spring to move towards the outlet until the secondary sealing ring contacts the cambered sealing surface of the valve body to realize sealing; and when the pressure of the medium in the pipeline is relieved, the head shaft is retracted and reset to keep the outlet open under the action of the spring. The rising stem type low-leakage high-sealing valve belongs to the field of firefighting and solves the problem that the conventional low-leakage high-sealing valve is low in discharge amount, slow in resetting and sealing and free of action warning and can be arranged straight up only for use. The rising stem type low-leakage high-sealing valve comprises the head shaft, the three-way joint body, a warning cap, the valve body, the spring, the primary sealing ring and the secondary sealing ring. The rising stem type low-leakage high-sealing valve has broad application prospect in food, medicine, banks, power generation and distribution, the chemical industry, papermaking, painting and finish baking lines, control machine rooms, data enters, archives, museums, airports, metros, telecommunication and the like.
Description
Technical field
The utility model relates to a kind of fire protection sector that is used for, level or upright the installation, and profile is " ⊥ " font, adopts the length of spring compressed piston structure; Often open at ordinary times, the medium or the residual air of slow seepage in the pipeline are discharged at any time, when system acting spurted, action sealed and exposes the autocontrol valve of caution, belongs to the fire protection linkage control field.
Background technique
The low high envelope valve of letting out among the existing GB GB25972-2010 " gas extinguishing system and parts ", rated working pressure is 6MPa, need customize joint, gasket seal with being connected of pipeline, volume is bigger than normal, construction inconvenience, cost is higher; Can not satisfy the practical applications requirement of multi-region interlock control and small space.
Of today low to let out high envelope valve outlet port runner narrow and small, and discharge amount is little, and safety coefficient is low.
The current low high envelope valve of letting out is not provided with spring, only can uprightly install and use, and adaptability is relatively poor.
Existing low let out high envelope valve events after, apical axis can not expose obvious caution.
Summary of the invention
For solve conventional low let out high envelope valve need on-the-spot pipe arrangement, discharge amount little, bear pressure low, can not level install and use, move the back and do not have the defective that exposes obvious caution.The utility model provides a kind of rising stem (RS.) formula the low high envelope valve of letting out, and is adopted as the length of spring compressed piston structure, has adapted to level and has has uprightly installed and used requirement; The apical axis stage casing diameter of axle and valve body hole adopt Spielpassung, and secondary seal ring compressive strain is spacing, have realized the performance that bounces back and reset flexibly after high pressure sealing and the decompression; Apical axis axle cylindrical is milled with flat filament, and the bottom has " one " word diversion groove, increases the sectional area of discharging; The apical axis head is inlayed the large red helmet.
The utility model is achieved in that the rising stem (RS.) formula is low and lets out high envelope valve and be made up of helmet (1), tee union body (7), valve body (3), apical axis (4), primary seal circle (6), secondary seal ring (5), spring (2).Spring is placed in the apical axis outlet section, and secondary seal ring is enclosed within the apical axis seal groove, outwards receives tension in advance, and apical axis is loaded between valve body, the tee union body, and tee union body and valve body assembling adopt the primary seal circle to keep static seal; Contacted with the outlet of tee union body by spring action apical axis bottom, keep often opening; When charging into Jie in the pipeline, medium gets into space discharge between apical axis and the valve body through tee union body inner duct; When rate-of flow surpasses design load, promote the apical axis pressure spring and move to outlet, contact with valve body circular arc sealing surface until secondary seal ring and realize sealing; When pipeline medium pressure was eliminated, apical axis was under the effect of spring, and retraction resets and keeps outlet to open wide.
The beneficial effect of the utility model is: the problem of having eliminated on-the-spot pipe arrangement, connection high pressure sealing; Discharging, reseting performance have been improved; Broken through the restriction of can not level installing and using; Increased the function that apical axis behind the valve event exposes obvious caution.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the section of structure of the utility model.
Fig. 2 is the outline drawing of the utility model.
Fig. 3 is the vital part in the utility model: the valve body sectional drawing.
Fig. 4 is the vital part in the utility model: the apical axis plan view.
Fig. 5 is the vital part in the utility model: the apical axis plan view.
Valve body: be designed to multistage pore canal, be provided with the circular arc sealing surface of secondary seal ring, be connected M14 * 1.5 internal threads with the tee union body, the valve body outer lower portion is a hexagonal, and car circle in top cooperates with apical axis stage casing diametric clearance.
Apical axis: head is provided with the hole of inlaying helmet, and inducer and outlet section cylindrical are milled with flat filament, and the stage casing diameter of axle and valve body hole adopt Spielpassung, are processed with the secondary seal ring groove, make secondary seal ring receive outside pretightening force, and the bottom has " one " word groove water conservancy diversion.
The tee union body: connect and all adopt M14 * 1.5 outside threads, 60 ° of conical surfaces seal firmly, import and export and are processed with water conservancy diversion tapering, fillet, and the middle part is a square body, is convenient to assemble clamping.
Helmet: be the large red teflon, adopt mushroom shaped, assemble with the apical axis interference.Hide in valve body hole the obvious caution of action back evagination at ordinary times.
The technological scheme that its technical problem of the utility model solution is taked is:
Press the core component-apical axis of fluid mechanics, this valve working characteristics design the utility model; Head is provided with the hole of inlaying helmet; Inducer and outlet section cylindrical are milled with flat filament, increase the discharging sectional area, and the stage casing diameter of axle and valve body hole adopt Spielpassung; Be processed with secondary seal ring pretension groove, the bottom has " one " word groove water conservancy diversion.
Embodiment
The low high envelope valve of letting out of rising stem (RS.) formula is made up of tee union body, valve body, apical axis, primary seal circle, helmet, secondary seal ring, spring.Profile is " ⊥ " font, and spring is placed in the apical axis outlet section, and secondary seal ring is enclosed within the apical axis seal groove, outwards receives tension in advance, and apical axis is loaded between valve body, the tee union body, and tee union body and valve body assembling adopt the primary seal circle to keep static seal; Contacted with the outlet of tee union body by spring action apical axis bottom, keep often opening; When charging into medium in the pipeline, medium gets into space discharge between apical axis and the valve body through tee union body inner duct; When rate-of flow surpasses design load, promote the apical axis pressure spring and move to outlet, contact with valve body circular arc sealing surface until secondary seal ring and realize sealing; When pipeline medium pressure was eliminated, apical axis was under the effect of spring, and retraction resets and keeps outlet to open wide.
1) material: tee union body and spring are stainless steel, and valve body and apical axis are Cuprum alloy, and major and minor seal ring is a butyronitrile rubber, and helmet is the large red teflon.
2) Applicable media: heptafluoro-propane, cigarette iron to the greatest extent, carbon dioxide, nitrogen, pressurized air, water.
3) applicable system: gas extinguishing system, powder extinguishing system, fine water mist fire-extinguishing system.
4) rated working pressure: 12MPa, working pressure is big, and adaptability is strong.
5) sealing load: 18MPa, non-leakage, indeformable.
6) drawoff discharge: 25L/min.
Inlet pressure when 7) being held open state: 0.05MPa-0.1MPa.
8) import and export screw thread: M14 * 1.5.
9) import and export sealing: 60 ° of conical surfaces seal firmly.
10) mounting type: upright, level is installed, and the utility model adaptability is strong.
Claims (4)
1. a fire-fighting is characterized in that with the low high envelope valve of letting out of rising stem (RS.) formula profile is " ⊥ " font, is the length of spring compressed piston structure, and action exposes caution; Spring is placed in the apical axis outlet section, and secondary seal ring is enclosed within the apical axis seal groove, the rising stem (RS.) formula is low let out high envelope valve by: helmet (1), spring (2), valve body (3), apical axis (4), secondary seal ring (5), tee union body (7), primary seal circle (6) are formed.
2. the low high envelope valve of letting out of rising stem (RS.) formula according to claim 1 is characterized in that valve body is a multistage pore canal, is provided with the circular arc sealing surface of secondary seal ring, is connected M14 * 1.5 internal threads with the tee union body, cooperates with apical axis stage casing diametric clearance.
3. the low high envelope valve of letting out of rising stem (RS.) formula according to claim 1; It is characterized in that the apical axis head is provided with the hole of inlaying helmet, inducer and outlet section cylindrical are milled with flat filament, and the stage casing diameter of axle and valve body hole adopt Spielpassung; Be processed with the secondary seal ring groove, the bottom has " one " word groove.
4. the low high envelope valve of letting out of rising stem (RS.) formula according to claim 1 is characterized in that the tee union body, connects and all adopts M14 * 1.5 outside threads, and 60 ° of conical surfaces seal firmly, import and export to be processed with tapering, fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089444U CN202327272U (en) | 2011-10-24 | 2011-10-24 | Rising stem type low-leakage high-sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204089444U CN202327272U (en) | 2011-10-24 | 2011-10-24 | Rising stem type low-leakage high-sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327272U true CN202327272U (en) | 2012-07-11 |
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ID=46439251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204089444U Expired - Fee Related CN202327272U (en) | 2011-10-24 | 2011-10-24 | Rising stem type low-leakage high-sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327272U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032525A1 (en) * | 2012-08-29 | 2014-03-06 | 西安新思化工设备制造有限公司 | Safety valve with low leakage and high sealing property |
| CN104234892A (en) * | 2013-06-14 | 2014-12-24 | 罗伯特·博世有限公司 | Low-pressure loop of fuel feed device of fuel injection system |
| CN110608300A (en) * | 2019-10-29 | 2019-12-24 | 沈阳航天新光集团有限公司 | One-way interface gas circuit replacing device |
-
2011
- 2011-10-24 CN CN2011204089444U patent/CN202327272U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032525A1 (en) * | 2012-08-29 | 2014-03-06 | 西安新思化工设备制造有限公司 | Safety valve with low leakage and high sealing property |
| CN104234892A (en) * | 2013-06-14 | 2014-12-24 | 罗伯特·博世有限公司 | Low-pressure loop of fuel feed device of fuel injection system |
| CN104234892B (en) * | 2013-06-14 | 2019-11-26 | 罗伯特·博世有限公司 | The low tension loop of the fuel supply system of fuel injection system |
| CN110608300A (en) * | 2019-10-29 | 2019-12-24 | 沈阳航天新光集团有限公司 | One-way interface gas circuit replacing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI LEINUO SECURITY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI LEINUO INDUSTRIAL GAS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201703 Shanghai city Qingpu district Song Fu Road No. 19 Patentee after: SHANGHAI LEINUO SECURITY TECHNOLOGY CO., LTD. Address before: 201703 Shanghai city Qingpu district Song Fu Road No. 19 Patentee before: Shanghai Leinuo Industrial Gases Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141024 |
|
| EXPY | Termination of patent right or utility model |