CN205891766U - Back -fire relief breathable cap - Google Patents
Back -fire relief breathable cap Download PDFInfo
- Publication number
- CN205891766U CN205891766U CN201620801469.XU CN201620801469U CN205891766U CN 205891766 U CN205891766 U CN 205891766U CN 201620801469 U CN201620801469 U CN 201620801469U CN 205891766 U CN205891766 U CN 205891766U
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- China
- Prior art keywords
- fire relief
- fire
- oil tank
- oil
- chipware
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a back -fire relief breathable cap, including casing and hood, the hood cover is established in the upper end of casing, and the casing inboard is equipped with two fixed jump rings, is equipped with the dead lever between two fixed jump rings, and dead lever one end is connected with two fixed jump rings, and the other end is connected with the bottom of hood, is equipped with the back -fire relief chipware on two fixed jump rings. The utility model discloses it outwards exhausts to pass through the back -fire relief chipware when the oil tank oil feed, inwards breathe in through the back -fire relief chipware when the oil feed, guarantee a jar interior external pressure equilibrium of forces. Because the two -layer laminating ultra -thin fire -resistant aluminium belt of being in the same place constitutes the little triangle -shaped airflow channel of nos several, produce " wall effect ", when breathing in in the oil tank oil drain is to the jar, stop totally with stop all burning things which may cause a fire disaster from then on airflow channel get into the oil tank in, assurance oil tank safety.
Description
Technical field
The utility model is related to a kind of back-fire relief Ventilated cap, belongs to oil truck accessory technical field.
Background technology
Oil tank is in oil-feed or when draining the oil it is ensured that tank internal and external pressure balance, it is desirable to have ventilative equipment.And the ventilative of routine sets
It is impossible to stoping completely and preventing the entrance of all burning things which may cause a fire disaster, there is very big potential safety hazard for when to air-breathing in tank.
Utility model content
For the problems referred to above, the utility model provides a kind of back-fire relief Ventilated cap, can stop and prevent all fire completely
Source enters in tank it is ensured that the safety of oil tank.
The purpose of this utility model is achieved through the following channels:
A kind of back-fire relief Ventilated cap, including housing and top cap, described top cap is set in the upper end of housing, and described case inside sets
There are two fixed circlips, between two fixed circlips, be provided with fix bar, described fix bar one end is connected with two fixed circlips, separately
One end is connected with the bottom of top cap, and two described fixed circlips are provided with back-fire relief chipware.
Described back-fire relief chipware is to be entwined by the belt that two-layer fits together, and is rectangular after wherein one layer belt expansion
Shape, the corrugated that another layer of belt forms in multiple " n " shape after launching.
The material of described belt is aluminium.
Described housing lower end is provided with flange.
At least two bolt through-holes are uniformly provided with described flange.
The utility model beneficial effect:
The utility model is outwards vented by back-fire relief chipware when oil tank oil-feed；Inwardly inhaled by back-fire relief chipware when oil-feed
Gas is it is ensured that the balance of tank external and internal pressure.Because the fire resisting aluminium belt that two-layer fits together constitutes numerous little triangle air-flow
Passage, produces " wall effect ", when oil tank is drained the oil to air-breathing in tank, stops and prevent all burning things which may cause a fire disaster completely from this gas channel
Enter in oil tank it is ensured that oil tank safety.
Brief description
Below in conjunction with the accompanying drawings the utility model is described in further detail:
Fig. 1 is the utility model cross section structure diagram；
In figure, 1, housing, 2, top cap, 3, fixed circlip, 4, fix bar, 5, back-fire relief chipware, 6, flange, 7, bolt through-hole.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described further.
Embodiment:
As shown in figure 1, a kind of back-fire relief Ventilated cap, including housing 1 and top cap 2, described top cap is set in the upper end of housing, institute
State case inside and be provided with two fixed circlips 3, between two fixed circlips, be provided with fix bar 4, described fix bar one end with two
Fixed circlip connects, and the other end is connected with the bottom of top cap, makes there is certain gap between top cap and housing, facilitates air
Turnover, two described fixed circlips are provided with back-fire relief chipware 5.
Described back-fire relief chipware is to be entwined by the belt that two-layer fits together, and is rectangular after wherein one layer belt expansion
Shape, the corrugated that another layer of belt forms in multiple " n " shape after launching, thus constitute numerous little triangle gas channel.
The material of described belt is aluminium, and fire resistance is good.
Described housing lower end is provided with flange 6, is easy to Ventilated cap is installed on oil tank.
At least two bolt through-holes 7 are uniformly provided with described flange it is ensured that install Ventilated cap, contact surface stress balance,
Be not in deformation, so that sealing effectiveness is reached most preferably.
Concrete operating principle:
As shown in figure 1, according to burning and blast chain reaction theory it is believed that burning and explosion phenomenon are not intermolecular direct
The result of effect, but under the exciting of the external energy (heat energy, radiation energy, electric energy, chemical energy etc.), so that molecular link is received brokenly
Bad, produce the molecule (referred to as bioactive molecule) possessing respond, when these bioactive molecules occur chemical reaction, be split into first
Very active and free radical that the life-span is very brief, chemical reaction is carried out by these free radicals.Free radical and another molecular action
Result in addition to product moreover it is possible to produce new free radical, these new free radicals repeatedly react, and consume but also raw not only
Become, constantly go on.It can thus be appreciated that inflammable mixture of gas self-burning (after combustion has been initiated, does not have the work of outside resources
With) condition be: the new number of free radicals producing is equal to or more than the number of free radicals disappearing.Because gas channel size is less, from
Also lower by collision probability between base and reaction molecular, and free radical is bigger with the collision probability of gas channel wall, thus promotees
Make radical reaction lower, when gas channel size is reduced to certain numerical value, this " wall effect " has resulted in flame
The condition propagated can not be continued, flame is prevented from.
The utility model is vertically mounted on the top of oil tank by flange 6, passes through back-fire relief chipware 5 when oil tank oil-feed outside
Exhaust；Pass through the inside air-breathing of back-fire relief chipware 5 when oil-feed it is ensured that the balance of tank external and internal pressure.Fit together due to two-layer
Fire resisting aluminium belt constitutes numerous little triangle gas channel, produces " wall effect ", when oil tank is drained the oil to air-breathing in tank, complete
Entirely stop and prevent all burning things which may cause a fire disaster to enter in oil tank it is ensured that oil tank safety from this gas channel.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, in technical scope disclosed by the utility model for any those of ordinary skill in the art, can be without creative labor
The dynamic change or replacement expected, all should cover within protection domain of the present utility model.Therefore, protection model of the present utility model
Enclose and be defined by the protection domain that claims are limited.
Claims (5)
1. a kind of back-fire relief Ventilated cap, including housing and top cap it is characterised in that: described top cap is set in the upper end of housing, described
Case inside is provided with two fixed circlips, is provided with fix bar between two fixed circlips, described fix bar one end and two fixations
Jump ring connects, and the other end is connected with the bottom of top cap, and two described fixed circlips are provided with back-fire relief chipware.
2. as claimed in claim 1 a kind of back-fire relief Ventilated cap it is characterised in that: described back-fire relief chipware is to be fitted in one by two-layer
The belt rising is entwined, and is rectangle after wherein one layer belt expansion, is in multiple " n " shape composition after another layer of belt expansion
Corrugated.
3. as claimed in claim 2 a kind of back-fire relief Ventilated cap it is characterised in that: the material of described belt be aluminium.
4. as claimed in claim 1 a kind of back-fire relief Ventilated cap it is characterised in that: described housing lower end is provided with flange.
5. as claimed in claim 4 a kind of back-fire relief Ventilated cap it is characterised in that: at least two spiral shells are uniformly provided with described flange
Bolt via.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801469.XU CN205891766U (en) | 2016-07-28 | 2016-07-28 | Back -fire relief breathable cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620801469.XU CN205891766U (en) | 2016-07-28 | 2016-07-28 | Back -fire relief breathable cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205891766U true CN205891766U (en) | 2017-01-18 |
Family
ID=57784977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620801469.XU Active CN205891766U (en) | 2016-07-28 | 2016-07-28 | Back -fire relief breathable cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205891766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998539A (en) * | 2017-11-30 | 2018-05-08 | 成都中寰流体控制设备股份有限公司 | A kind of fire retardant device and closed case back-fire relief method |
-
2016
- 2016-07-28 CN CN201620801469.XU patent/CN205891766U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998539A (en) * | 2017-11-30 | 2018-05-08 | 成都中寰流体控制设备股份有限公司 | A kind of fire retardant device and closed case back-fire relief method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |