CN102168769B - Two-stage pressure-control overflow-preventing breather valve - Google Patents
Two-stage pressure-control overflow-preventing breather valve Download PDFInfo
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- CN102168769B CN102168769B CN2011100411503A CN201110041150A CN102168769B CN 102168769 B CN102168769 B CN 102168769B CN 2011100411503 A CN2011100411503 A CN 2011100411503A CN 201110041150 A CN201110041150 A CN 201110041150A CN 102168769 B CN102168769 B CN 102168769B
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- floating drum
- float lever
- overflow
- base plate
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Abstract
The invention relates to a two-stage pressure-control overflow-preventing breather valve. An exhaust valve core is pressed on an exhaust valve seat by an exhaust valve spring; the bottom end of the exhaust valve seat is fixed with the top end of a float lever through a connecting rack; a floating bowl is movably matched with the float lever through a center hole of a top plate and a center hole of a base plate; floating bowl springs of which two ends are respectively supported against the top plate and the base plate are sleeved on the float lever in the floating bowl; the base plate of the floating bowl is a moving plate; an air flue is arranged at the upper end of the float lever and is used for communicating a top hole on the float lever with a side hole; and when the floating bowl rises along the floating lever, the side hole is positioned in the floating bowl. With the structure, the two-stage pressure-control overflow-preventing breather valve has the advantage of simple structure; and the breathing level and the safety level are improved and the overflow-preventing effect is also achieved.
Description
Technical field
The present invention relates to inhalation valve, especially a kind of two-stage pressure control anti-overflow inhalation valve with anti-overflow and secondary respiratory function.
Background technique
The tank body of accumulating liquid or container are generally isolated with ambient atmosphere, but need to adopt inhalation valve guarantee the force value in tank body or the container for preventing in tank body or the container because hypotony is taken out flat or overpressure causes the explosion phenomenon.
The inhalation valve of existing technology comprises spring inhalation valve, steel ball type inhalation valve, topple over the anti-overflow inhalation valve and the band that is used on the cross-country type fuel tank is toppled over the anti-overflow inhalation valve.
The spring inhalation valve is like this work---when from tank bottom in jar oiling or jar in during the temperature rising; The jar internal pressure increases; When jar external and internal pressure difference reached 6～8kPa, gas pressure overcame the elastic force of exhaust spring in jar, backs down valve plate with outside the air drain tank; When temperature reduced outside oil plant in the jar is drawn out of jar or in the jar, jar internal pressure reduced, and when jar external and internal pressure difference reaches 3kPa, atmospheric pressure will overcome the elastic force of air inlet spring, and lower valve plate is opened downwards, air entering oil tank.This structure has realized respiratory function, but in use, can't anti-overflow, can not solve fuel tank tilting or road surface, abrupt slope fluid spill and leakage, and there is comparatively serious potential safety hazard.
The steel ball type inhalation valve is like this work---when from tank bottom in jar oiling or jar in temperature when raising, jar internal pressure increases, when jar external and internal pressure difference reached 6～8kPa, jar interior gas pressure overcame the gravity of steel ball, backs down steel ball with outside the air drain tank; When temperature reduced outside oil plant in the jar is drawn out of jar or in the jar, jar internal pressure reduced, and when jar external and internal pressure difference reaches 3kPa, atmospheric pressure will overcome the gravity of steel ball, back down steel ball, air entering oil tank.This structure has realized respiratory function, but in use, can't anti-overflow, can not solve fuel tank tilting or road surface, abrupt slope fluid spill and leakage, and there is comparatively serious potential safety hazard.
Topple over the anti-overflow inhalation valve and be work like this--when-oil tank internal pressure is higher than external pressure 7kPa or when being lower than external pressure 2kPa, inhalation valve will be opened, and the inside and outside gas of oil tank is communicated, and balances in the oil tank too highly or cross low differential pressure, plays the safety protection effect; When the oil tank internal pressure is higher than external pressure 2kPa when being lower than external pressure 7kPa, inhalation valve is in closed condition, makes to keep certain pressure in the oil tank, in order to avoid the waste of fuel oil.Though this device has in use solved above-mentioned spill and leakage problem to a certain extent; But it is to realize the anti-overflow function by sealing inhalation valve passage, promptly by after the sealing inhalation valve passage realization anti-overflow function, just can not realize respiratory function; Can occur taking out flat or the explosion phenomenon; When vehicle pitched, oil plant still was easy to overflow, and has potential safety hazard.
Band on the cross-country type fuel tank is toppled over the anti-overflow inhalation valve, and it is a Chinese patent, and the patent No. is 200620111672.0; Its two is a cover, places front end and back end, oil tank top, and inclination blocking solution valve opposite direction is installed; It is applicable at next inhalation valve of condition on abrupt slope and closes that the another inhalation valve is opened and used, and it mainly is applicable at next inhalation valve of condition on abrupt slope and closes; The another inhalation valve is opened and is used; When vehicle driving during in tilted road surface or the oil tank inclination of uneven road surface, this inhalation valve is not just had an anti-overflow function, and oil plant can overflow from inhalation valve.Need so to have realized simultaneously to a certain extent the function of breathing and anti-overflow, but when the oil tank inclination, it can't realize the anti-overflow function, still has potential safety hazard.
In sum; The anti-overflow inhalation valve of existing technology can't effectively solve fuel tank and tilt or road surface, abrupt slope fluid spill and leakage problem; During the oil tank rollover, can't prevent that at all its inner fluid is from the inhalation valve spill and leakage, therefore; The anti-overflow inhalation valve of existing technology does not solve the problem of breathing with anti-overflow from root, has serious potential safety hazard.
Summary of the invention
The objective of the invention is in order to overcome the above-mentioned deficiency that existing technology exists, provide a kind of and have the secondary breathing and prevent the two-stage pressure control anti-overflow inhalation valve of spill and leakage function.
The present invention realizes through following technological scheme; A kind of two-stage pressure control anti-overflow inhalation valve; Comprise the delivery valve seat of breathing valve body and bottom setting thereof, breathe the breathing valve plate that valve body top has the inlet valve spindle that passes the carriage center hole and is installed in the air inlet valve lever bottom, be enclosed within the inlet valve spring on the inlet valve spindle; When the valve body internal and external pressure balance, the upper end of breathing valve plate is cooperated with the exhaust plug lower end constitute sealing; It is characterized in that: exhaust plug is pressed on the delivery valve seat by exhaust valve spring; Said delivery valve seat bottom is fixed through the top of link press span and float lever; The top of floating drum, base plate are through center hole and float lever movingly; Wherein be set with two ends on the float lever in floating drum and withstand on the floating drum spring on floating drum top, the base plate respectively, the base plate of floating drum is a mobile plate, has air flue in the float lever upper end apical pore is communicated with side opening; When floating drum when float lever rises, said side opening is arranged in floating drum.
The present invention is owing to the advantage that has adopted said structure to have is: not only realized inhalation valve safety respiratory function; Also improved the breathing level of security; Realized the anti-overflow function simultaneously; Improved the Security that the vehicle-mounted oil tank car goes or rests in the inclined-plane, avoided because cause the generation of security incident from the inhalation valve leakage of oil.
Description of drawings
The present invention can further specify through the indefiniteness embodiment that accompanying drawing provides.
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, breathe valve body; 2, delivery valve seat; 3, float lever; 4, link press span; 5, floating drum; 6, exhaust valve spring; 7, spool; 8, breathe valve plate; 9, inlet valve spring; 10, air flue hole; 11, floating drum spring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Referring to accompanying drawing; Two-stage pressure control anti-overflow inhalation valve among the figure; Comprise the delivery valve seat 2 of breathing valve body 1 and bottom setting thereof, breathe the breathing valve plate 8 that valve body 1 top has the inlet valve spindle that passes the carriage center hole and is installed in the air inlet valve lever bottom, be enclosed within the inlet valve spring 9 on the inlet valve spindle; When the valve body internal and external pressure balance, the upper end of breathing valve plate 8 is cooperated with the exhaust plug lower end constitute sealing; It is characterized in that: exhaust plug 7 is pressed on the delivery valve seat by exhaust valve spring 6; Said delivery valve seat 2 bottoms are fixed through the link press span 4 and the top of float lever 3; Floating drum 5 center hole and the float lever through top, base plate movingly; Wherein be set with two ends on the float lever 3 in the floating drum and withstand on the floating drum spring 11 on floating drum top, the base plate respectively, the base plate of floating drum is a mobile plate, has air flue 10 in float lever 3 upper ends apical pore is communicated with side opening; When floating drum when float lever rises, said side opening is arranged in floating drum.
The first order that the present invention produces owing to said structure is breathed principle: when temperature raises in oiling in jar or the jar; The jar internal pressure increases; When jar external and internal pressure difference reaches 6～8kPa; Gas pressure overcomes the elastic force of exhaust valve spring 6 in jar, will breathe upwards jack-up of valve plate 8 and exhaust plug 7, outside the air drain tank; When temperature reduced outside oil plant in the jar is drawn out of jar or in the jar, jar internal pressure reduced, and when jar external and internal pressure difference reaches 2～3kPa, atmospheric pressure will overcome the elastic force of inlet valve spring 9, will breathe valve plate 8 and open downwards, air entering oil tank.Principle is breathed in the second level: float lever 3 come-ups withstand on the bottom of breathing valve body 1 in fluid floating function lower edge when floating drum 5; After the sealing of first order respiration channel; When the jar internal pressure continues to rise to 35KPa; The pressure that the base plate of floating drum 5 overcomes floating drum spring 11 moves on gradually, with the air in the floating drum 5 by float lever 3 side openings outside air flue 10 is got rid of by the hole at float lever 3 tops and first order respiration channel jar, fluid gets into floating drum 5 bottom spaces; Thereby increase a jar interior free space reduction jar internal pressure, to realize that safe anti-overflow is breathed under jar interior oil plant and the extraneous no passage situation.The anti-overflow principle is when fuel tank goes on the abrupt slope, inclination or various abominable cross-country road conditions such as uneven cause tank level upwards when breathing valve body 1 fluid and will overflow; Floating drum 5 also can float to breathing valve body 1 bottom by float lever 3 in fluid floating function lower edge; Sealing first order respiration channel prevents that oil plant from overflowing.
In the said structure; When fully loaded fuel tank goes on the abrupt slope, inclination or various abominable cross-country road conditions such as uneven cause tank level upwards when breathing valve body fluid and will overflow; Can seal first order respiration channel automatically and prevent that oil plant from overflowing, after the first order respiration channel sealing, continue to rise to jeopardize oil tank safety the time like the jar internal pressure; Can pass through second level control of breathing pressure release, to guarantee oil tank safety.
Further optimization to embodiment is that the flexibility or the half flexible end face sealing ring of convexity is installed at the end face of floating drum.
In sum, the present invention is not only simple in structure, has improved breathing grade and safety class, has also reached the effect of anti-overflow.
Claims (2)
1. two-stage pressure control anti-overflow inhalation valve; Comprise the delivery valve seat (2) of breathing valve body (1) and bottom setting thereof; Breathe the breathing valve plate (8) that valve body (1) top has the inlet valve spindle that passes the carriage center hole and is installed in the inlet valve spindle bottom; Be enclosed within the inlet valve spring (9) on the inlet valve spindle, when the valve body internal and external pressure balance, the upper end of breathing valve plate (8) cooperated with the exhaust plug lower end constitute sealing; It is characterized in that: exhaust plug (7) is pressed on the delivery valve seat by exhaust valve spring (6); Said delivery valve seat (2) bottom is fixed through the link press span (4) and the top of float lever (3); Center hole and the float lever of floating drum (5) through top, base plate movingly; Wherein be set with two ends on the float lever (3) in the floating drum and withstand on the floating drum spring (11) on floating drum top, the base plate respectively; The base plate of floating drum is a mobile plate; Have air flue (10) in float lever (3) upper end the apical pore on the float lever (3) be communicated with side opening, when floating drum when float lever rises, said side opening is arranged in floating drum.
2. two-stage pressure control anti-overflow inhalation valve according to claim 1 is characterized in that: the end face at floating drum (5) is equipped with protruding flexible or half flexible end face sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100411503A CN102168769B (en) | 2011-02-21 | 2011-02-21 | Two-stage pressure-control overflow-preventing breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100411503A CN102168769B (en) | 2011-02-21 | 2011-02-21 | Two-stage pressure-control overflow-preventing breather valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168769A CN102168769A (en) | 2011-08-31 |
| CN102168769B true CN102168769B (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100411503A Expired - Fee Related CN102168769B (en) | 2011-02-21 | 2011-02-21 | Two-stage pressure-control overflow-preventing breather valve |
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| CN (1) | CN102168769B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896159A (en) * | 2015-06-05 | 2015-09-09 | 浙江嘉隆机械设备有限公司 | Full-ball type rollover and overflow resistant breathing valve |
| CN109909270B (en) * | 2019-04-02 | 2020-10-16 | 吉林飞特环保股份有限公司 | Quick fuelization device of domestic waste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303141Y (en) * | 1997-03-28 | 1999-01-06 | 中国人民解放军后勤工程学院 | Magnetic control oscillation type breather valve |
| CN2706646Y (en) * | 2004-04-30 | 2005-06-29 | 韩宏波 | Buffering type double seal vacuum gas supplying valve |
| CN200988767Y (en) * | 2006-11-08 | 2007-12-12 | 马振利 | Inclining and tilting anti-overflow respiration valve for cross-country fuel tank car |
| CN201007393Y (en) * | 2007-01-15 | 2008-01-16 | 冷智正 | Dual-sealing constant flotage air bleeder |
| CN101936399A (en) * | 2009-07-02 | 2011-01-05 | 于博 | Two-stage feedback type automatic valve |
-
2011
- 2011-02-21 CN CN2011100411503A patent/CN102168769B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303141Y (en) * | 1997-03-28 | 1999-01-06 | 中国人民解放军后勤工程学院 | Magnetic control oscillation type breather valve |
| CN2706646Y (en) * | 2004-04-30 | 2005-06-29 | 韩宏波 | Buffering type double seal vacuum gas supplying valve |
| CN200988767Y (en) * | 2006-11-08 | 2007-12-12 | 马振利 | Inclining and tilting anti-overflow respiration valve for cross-country fuel tank car |
| CN201007393Y (en) * | 2007-01-15 | 2008-01-16 | 冷智正 | Dual-sealing constant flotage air bleeder |
| CN101936399A (en) * | 2009-07-02 | 2011-01-05 | 于博 | Two-stage feedback type automatic valve |
Non-Patent Citations (3)
| Title |
|---|
| 黄起陆等.两级式呼吸阀能保证油罐呼吸安全.《油气储运》.2000,第19卷(第6期),50-52页. * |
| 黄起陆等.机械式呼吸阀的类型与通气性能.《油气储运》.2008,第27卷(第10期),51-55页. * |
| 黄起陆等.磁控摆开式呼吸阀.《油气储运》.1997,第16卷(第4期),12-16页. * |
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| CN102168769A (en) | 2011-08-31 |
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Granted publication date: 20120815 Termination date: 20130221 |