CN206221716U - A kind of isolating valve for pressure-oil tank - Google Patents
A kind of isolating valve for pressure-oil tank Download PDFInfo
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- CN206221716U CN206221716U CN201621179344.4U CN201621179344U CN206221716U CN 206221716 U CN206221716 U CN 206221716U CN 201621179344 U CN201621179344 U CN 201621179344U CN 206221716 U CN206221716 U CN 206221716U
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- valve
- passage
- pressure
- constrictor
- oil tank
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Abstract
The utility model provides a kind of isolating valve for pressure-oil tank, including first passage, it is arranged in the first passage and for actively opening or closing the magnetic valve of the insertion of the first passage, and be arranged in one end of the first passage and for adjusting the flow-limiting valve of the oil and gas flow in the first passage, the first passage is z-shape, linkage section including first paragraph, second segment and connection first paragraph and second segment, the magnetic valve is arranged at linkage section, and the flow-limiting valve is arranged in second segment.The utility model is by being provided in the one end of first passage away from magnetic valve adjusting the flow-limiting valve of the oil and gas flow in first passage, so that the control of oil and gas flow is realized by flow-limiting valve, the regulation of multiple springs in the prior art is instead of, therefore is not also existed and is caused isolating valve complex structure and the low technological deficiency of finished product rate because the machining uniformity of multiple springs is poor.
Description
Technical field
The utility model is related to a kind of isolating valve, more particularly to a kind of controllable oil and gas isolation of flow for pressure-oil tank
Valve.
Background technology
In the prior art, the patent of invention of Publication No. CN103328805A discloses a kind of for the fast of high-pressure propellant tank
The isolating valve of speed decompression, and specifically disclose：A kind of isolating valve, its envelope flow restrictor, the flow restrictor is arranged on logical
Simultaneously envelope has the piston and the pressure-reducing valve with the second aperture in the first aperture in road；The isolating valve also includes solenoid valve block
Part, the electromagnetic valve component has by the coil of the energization of the signal-selectivity from controller and can be in first position and second
Move to open and close the armature in first aperture and/or the second aperture between position；When the coil electricity, the armature
The second place is moved to allow steam by first aperture, the opening of the pressure-reducing valve selectivity is allowing steam
Flow through the first aperture, second aperture or both；Common its in described two apertures is used to provide controlled steam flow.
In that patent, control to lift piston up-down by the cooperation of the size and spring of steam pressure, from
And control whether big passage is opened.When tank pressure is higher, flow control is carried out by controlled passage aisle.Work as tank pressure
During reduction, the flow velocity of passage aisle will be reduced, and spring overcoming pressure opens big passage, to increase steam flow rate.The patent needs to use
Two springs adjust the size of pressure, while valve block is integrated into same system, superfeed pressure size and magnetic valve
Built-in spring force is directly proportional.Therefore, it is actually that superfeed pressure and control deflation speed are adjusted with three springs.And spring
Machining comparison of coherence it is poor, three spring errors are more difficult to control, can therefore increase the complexity of system and reduce product
Yield rate.
Utility model content
The purpose of this utility model is to provide a kind of isolating valve for pressure-oil tank, it is intended to solved of the prior art
Isolating valve complex structure and the relatively low technical problem of yield rate.
What the utility model was realized in：There is provided a kind of isolating valve for pressure-oil tank, including first passage, set
The magnetic valve of the insertion in the first passage and for actively opening or closing the first passage is put, and is arranged on institute
State in one end of first passage and for adjusting the flow-limiting valve of the oil and gas flow in the first passage, the first passage is into Z
Shape, including first paragraph, second segment and connection first paragraph and second segment linkage section, the magnetic valve is arranged at linkage section, institute
Flow-limiting valve is stated to be arranged in second segment.
Further, the flow-limiting valve includes the rotating shaft being arranged in the first passage, is rotatably connected on the rotating shaft
On constrictor, and be set in the rotating shaft and for limiting the current limliting spring that the constrictor is rotated.
Further, the moment of torsion that it is subject to when the constrictor is static is equal to the moment of torsion that the current limliting spring is produced, i.e. P*
S1*L-P*S2*I=μ * δ θ, wherein, S1 and S2 is the area that the constrictor is located at the rotating shaft both sides, and P is the constrictor
The oil and gas pressure difference of both sides, L and I is the central point of the part that the constrictor is located at the rotating shaft both sides to the spindle central
The vertical range of axle, μ is the spring ratio of the current limliting spring, and δ θ are the corner of the current limliting spring.
Further, the current limliting spring is torsion spring.
Further, the constrictor for circle, and the constrictor diameter less than the first passage diameter.
Further, there is aperture, the magnetic valve includes valve core of the electromagnetic valve and is connected to institute in the first passage
The magnetic valve seal assembly of valve core of the electromagnetic valve one end is stated, it is described that the valve core of the electromagnetic valve is used for the drive when the isolating valve is powered
Magnetic valve seal assembly is moved up with said ports.
Further, the magnetic valve seal assembly is provided with rubber valve plate away from one end of the valve core of the electromagnetic valve.
Further, the isolating valve also includes being extended along the first passage and two ends are logical with described first respectively
The second channel of road connection, and be arranged in the second channel and for passive open or close passing through for the second channel
Logical relief valve.
Further, the relief valve includes the relief valve valve block component being arranged in the second channel, and connection
Pressure release spring below the relief valve valve block component.
Further, the flow-limiting valve is located at outside two joints of the first passage and second channel.
Implement a kind of isolating valve for pressure-oil tank of the present utility model, have the advantages that：It is by
One passage is away from the flow-limiting valve for being provided for adjusting the oil and gas flow in first passage in one end of magnetic valve so that oil and gas flow
Control realized by flow-limiting valve, instead of the regulation of multiple springs in the prior art, therefore also do not exist because of multiple springs
Machining uniformity difference and cause isolating valve complex structure and the low technological deficiency of finished product rate.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to make needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Fig. 1 is the structural representation of the isolating valve for pressure-oil tank that the utility model embodiment is provided；
Fig. 2 is structural representation of the isolating valve for pressure-oil tank of the utility model embodiment offer when being powered；
Fig. 3 is structural representation of the isolating valve for pressure-oil tank of the utility model embodiment offer in pressure release；
Fig. 4 is the current limliting principle schematic of the flow-limiting valve that the utility model embodiment is provided；
Fig. 5 is the structural representation of the flow-limiting valve that the utility model embodiment is provided；
Fig. 6 is structural representation of the isolating valve for pressure-oil tank of the utility model embodiment offer in negative pressure tonifying Qi
Figure.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can directly or
It is connected on another element.When an element is known as " being connected to " another element, it can be direct or indirect connection
To another element.
Also, it should be noted that the orientation term such as left and right, upper and lower in the utility model embodiment, is only relative each other
Concept or be reference with the normal operating condition of product, and should not be regarded as restrictive.
As shown in Figures 1 to 6, the isolating valve for pressure-oil tank that the utility model embodiment is provided, it may be provided at
Between fuel tank 1 and charcoal canister 2, the charcoal canister 2 is used to collecting the oil and gas of carrying out fuel tank 1 and then discharges to starting oil and gas
Machine.The isolating valve of the utility model embodiment can control the oil and gas between fuel tank 1 and charcoal canister 2 to flow, and should be every
Not may be positioned only between fuel tank 1 and charcoal canister 2 from valve, may be located on other positions, such as in charcoal canister 2 and engine
Between.
Specifically, isolating valve includes first passage 3, magnetic valve 4 and flow-limiting valve 5.Wherein, first passage 3 is formed in housing
It is interior, and the first passage 3 is logical for fuel feeding steam flow；Magnetic valve 4 is arranged in first passage 3 and for actively being beaten when it is powered
Open or close the insertion for closing first passage 3；Flow-limiting valve 5 is arranged in first passage 3 and for adjusting the oil and gas stream in first passage 3
Amount, the abnormal closing of the internal valve of fuel tank 1 is caused to prevent the oil and gas flow in first passage 3 excessive.Implement in the utility model
In example, flow-limiting valve 5 may be provided at first passage 3 near one end of charcoal canister 2, and correspondingly, magnetic valve 4 is arranged on first passage
3 near one end of fuel tank 1.
The utility model embodiment is led to by being provided for regulation first in the one end of first passage 3 away from magnetic valve 4
The flow-limiting valve 5 of the oil and gas flow in road 3 so that the control of oil and gas flow is realized by flow-limiting valve 5, instead of in the prior art
The regulation of multiple springs, thus also do not exist because the machining uniformity of multiple springs difference cause isolating valve complex structure and
The low technological deficiency of finished product rate.
Specifically, first passage 3 is z-shape, including first paragraph 301, second segment 302 and connection first paragraph 301 and second segment
302 linkage section 303, the magnetic valve 4 is arranged at linkage section 303, and the flow-limiting valve 5 is arranged in second segment 302.
With reference to Fig. 4, flow-limiting valve 5 includes rotating shaft 51, constrictor 52 and current limliting spring 53.Wherein, rotating shaft 51 is arranged on first
In passage 3, its can horizontally set can also be longitudinally disposed；Constrictor 52 is rotatably connected in rotating shaft 51, i.e. constrictor 52 can be
Rotated in rotating shaft 51, can be now that rotating shaft 51 is fixed and constrictor 52 rotates relative to rotating shaft 51, or the He of constrictor 52
Rotating shaft 51 is rotated together, and the constrictor 52 is rotated to change the effective aperture of first passage 3, and then controls the oil and gas stream for flowing through
Amount；Current limliting spring 53 is set in rotating shaft 51 and is connected on constrictor 52, and the current limliting spring 53 is used to limit constrictor 52
Rotate.Specifically, in the current limliting process of flow-limiting valve 5, can be rotated because constrictor 52 is subject to the pressure of oil and gas, and constrictor 52 is simultaneously
Also by the elastic force of current limliting spring 53, when pressure is larger in fuel tank 1, the gas pressure that constrictor 52 is subject to is also big, generation
More than the moment of torsion of current limliting spring 53, now 51 rotation around the shaft of constrictor 52, subtracts passage effective aperture while rotation moment of torsion
It is small, it is to avoid flow is excessive.With the reduction of pressure in fuel tank 1, the moment of torsion of current limliting spring 53 is more than the gas that constrictor 52 is subject to
The moment of torsion that pressure is produced, now constrictor 52 rotate, passage bore becomes big.Come real above by the automatic passage caliber size that changes
The effect of flow is now controlled, the excessive exception for causing the internal valve of fuel tank 1 of flow can be avoided to close.
It is understood that when constrictor 52 is static, the moment of torsion that it is subject to is equal to the moment of torsion that current limliting spring 53 is produced.Knot
Fig. 5 is closed, can be calculated using formula is calculated as below：P*S1*L-P*S2*I=μ * δ θ, wherein, S1 and S2 is that constrictor 52 is located at
The area of the both sides of rotating shaft 51, P is the oil and gas pressure difference of the both sides of constrictor 52, and L and I is the portion that constrictor 52 is located at the both sides of rotating shaft 51
Point central point to the central shaft of rotating shaft 51 vertical range, μ is limited the spring ratio of stray bullet spring 53, δ θ be limited stray bullet spring 53 turn
Angle, δ θ are a parameters.The relevant parameter of constrictor 52 and current limliting spring 53 can be designed according to the formula, so that
Flow-limiting valve 5 can be by the control of oil and gas flow in allowed limits.
Preferably, current limliting spring 53 is torsion spring, and the torsion spring produces moment of torsion under the pressure of constrictor 52.Further preferably
Ground, the cross section of constrictor 52 is circle, and constrictor 52 diameter of the diameter less than first passage 3, to prevent constrictor 52
First passage 3 is blocked completely and causes the inside of fuel tank 1 to be broken down.It is understood that the cross section of the constrictor 52 also may be used
To be the geometry of Else Rule, in order to the design of constrictor 52 and the relevant parameter of current limliting spring 53, such as triangle or
Square or Else Rule polygon.
Such as Fig. 1 to Fig. 3, aperture 9 is provided with first passage 3, the cross section in the aperture 9 is transversal less than first passage 3
Face.Above-mentioned magnetic valve 4 includes coil 41, valve core of the electromagnetic valve 42 and magnetic valve seal assembly 43.Wherein, valve core of the electromagnetic valve 42 is set
In coil 41, magnetic valve seal assembly 43 is connected to one end of valve core of the electromagnetic valve 42, and when coil 41 is powered, it can produce one
Individual upward power, the upward power moves up valve core of the electromagnetic valve 42, and then band moving electromagnetic valve seal assembly 43 is moved up,
As shown in Fig. 2 now aperture 9 is in open mode, oil vapour enters charcoal canister by passage.The magnetic valve 4 also includes set
Returning spring 44 of the valve core of the electromagnetic valve 42 outside one end of magnetic valve seal assembly 43 is located at, in the envelope of magnetic valve seal assembly 43
Firmly during aperture 9, the returning spring 44 is in compressive state, when valve core of the electromagnetic valve 42 is moved up with moving electromagnetic valve seal assembly 43
When, the returning spring 44 further compresses, and when coil 41 is powered off, magnetic valve seal assembly 43 can be in the bullet of returning spring 44
Initial position is returned under power effect, that is, seals the position in aperture 9.
When magnetic valve seal assembly 43 seals aperture 9, in order to strengthen its sealing, magnetic valve seal assembly 43 away from
Vulcanization has rubber valve plate on the end face of one end of valve core of the electromagnetic valve 42.In addition, the housing for forming first passage 3 is outer with coil 41
Sealing ring 8 is provided between side face, the sealing ring 8 is used to seal first passage 3.
Further, the isolating valve of the utility model embodiment also includes second channel 6 and relief valve 7.Wherein, second leads to
Road 6 is extended along first passage 3 and its two ends connects with first passage 3 respectively, relief valve 7 be arranged in second channel 7 and
For passive open or the insertion of closing second channel 6.Specifically, magnetic valve 4 break down and cannot open or fuel tank 1 in
Pressure when reaching setting value, the relief valve 7 under the pressure of oil vapour passive open with insertion second channel 6 so that oil steams
Vapour enters charcoal canister 2 by the second channel 6.
The relief valve 7 includes the relief valve valve block component 71 being arranged in second channel 6, and is connected to relief valve valve block
The pressure release spring 72 of the lower section of component 71.When pressure reaches setting value in fuel tank 1, the pressure that relief valve valve block component 71 is subject to is big
When the pressure of pressure release spring 72, relief valve valve block component 71 is moved down, and oil vapour is entered by route shown in arrow in Fig. 3
Charcoal canister 2.When oil vapour enters charcoal canister 2 by route shown in arrow in Fig. 3, in order to equally control oil vapour
Uninterrupted, flow-limiting valve 5 is arranged on outside two joints of first passage 3 and second channel 6, i.e., by relief valve 7
Oil vapour can equally be subject to controlling for flow-limiting valve 5.
The negative pressure tonifying Qi process of fuel tank 1 is illustrated in figure 6, when the pressure in fuel tank 1 is less than ambient pressure, magnetic valve sealing
Component 43 is subject to gas pressure and the elastic force of returning spring 44 to act on, when elastic force of the gas pressure more than returning spring 44, electromagnetism
Valve seal assembly 43 is opened and moved up, and aperture 9 is opened, and gas enters fuel tank 1, completes negative pressure tonifying Qi process.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent or improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of isolating valve for pressure-oil tank, it is characterised in that including first passage, be arranged in the first passage and
For actively opening or closing the magnetic valve of the insertion of the first passage, and be arranged in one end of the first passage and
Flow-limiting valve for adjusting the oil and gas flow in the first passage, the first passage is z-shape, including first paragraph, second
The linkage section of section and connection first paragraph and second segment, the magnetic valve is arranged at linkage section, and the flow-limiting valve is arranged on second
In section.
2. the isolating valve of pressure-oil tank is used for as claimed in claim 1, it is characterised in that the flow-limiting valve includes being arranged on institute
The rotating shaft in first passage, the constrictor being rotatably connected in the rotating shaft are stated, and is set in the rotating shaft and for limiting
Make the current limliting spring that the constrictor is rotated.
3. the as claimed in claim 2 isolating valve for being used for pressure-oil tank, it is characterised in that it is subject to when the constrictor is static
Moment of torsion be equal to the current limliting spring produce moment of torsion, i.e. P*S1*L-P*S2*I=μ * δ θ, wherein, S1 and S2 is the constrictor
Positioned at the area of the rotating shaft both sides, P is the oil and gas pressure difference of the constrictor both sides, and L and I is described in the constrictor is located at
To the vertical range of the spindle central axle, μ is the spring ratio of the current limliting spring, δ θ to the central point of the part of rotating shaft both sides
It is the corner of the current limliting spring.
4. the isolating valve of pressure-oil tank is used for as claimed in claim 2, it is characterised in that the current limliting spring is torsion spring.
5. the as claimed in claim 2 isolating valve for being used for pressure-oil tank, it is characterised in that the constrictor is circle, and institute
State the diameter of the diameter less than the first passage of constrictor.
6. the isolating valve of pressure-oil tank is used for as claimed in claim 1, it is characterised in that there is hole in the first passage
Mouthful, the magnetic valve includes valve core of the electromagnetic valve and is connected to the magnetic valve seal assembly of described valve core of the electromagnetic valve one end, described
Valve core of the electromagnetic valve is used to drive the magnetic valve seal assembly to move up with said ports when the isolating valve is powered.
7. the as claimed in claim 6 isolating valve for being used for pressure-oil tank, it is characterised in that the magnetic valve seal assembly away from
One end of the valve core of the electromagnetic valve is provided with rubber valve plate.
8. the isolating valve of pressure-oil tank is used for as claimed in claim 1, it is characterised in that the isolating valve also includes along described
The second channel that first passage is extended and two ends connect with the first passage respectively, and it is arranged on the second channel
It is interior and for passive open or the relief valve of the insertion for closing the second channel.
9. the isolating valve of pressure-oil tank is used for as claimed in claim 8, it is characterised in that the relief valve includes being arranged on institute
The relief valve valve block component in second channel is stated, and is connected to the pressure release spring below the relief valve valve block component.
10. the as claimed in claim 8 isolating valve for being used for pressure-oil tank, it is characterised in that the flow-limiting valve is located at described the
Outside two joints of one passage and second channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179344.4U CN206221716U (en) | 2016-10-27 | 2016-10-27 | A kind of isolating valve for pressure-oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621179344.4U CN206221716U (en) | 2016-10-27 | 2016-10-27 | A kind of isolating valve for pressure-oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221716U true CN206221716U (en) | 2017-06-06 |
Family
ID=58789609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621179344.4U Active CN206221716U (en) | 2016-10-27 | 2016-10-27 | A kind of isolating valve for pressure-oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611590A (en) * | 2019-01-24 | 2019-04-12 | 左强 | A kind of novel fuel tank isolation valve |
-
2016
- 2016-10-27 CN CN201621179344.4U patent/CN206221716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611590A (en) * | 2019-01-24 | 2019-04-12 | 左强 | A kind of novel fuel tank isolation valve |
| CN109611590B (en) * | 2019-01-24 | 2023-11-28 | 安徽尼威汽车动力系统有限公司 | Oil tank isolation valve |
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