CN106195374B - A kind of manufacture craft of naval vessel back-fire relief breathing unit - Google Patents
A kind of manufacture craft of naval vessel back-fire relief breathing unit Download PDFInfo
- Publication number
- CN106195374B CN106195374B CN201610892082.4A CN201610892082A CN106195374B CN 106195374 B CN106195374 B CN 106195374B CN 201610892082 A CN201610892082 A CN 201610892082A CN 106195374 B CN106195374 B CN 106195374B
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- sandwich layer
- pressure
- fire relief
- cargo tank
- valve disc
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
- F16K17/19—Equalising valves predominantly for tanks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
A kind of manufacture craft of naval vessel back-fire relief breathing unit, the back-fire relief sandwich layer in the flame arrester arrangement includes following operating procedure：A）, according to the ventilatory capacity of pipeline require, determine back-fire relief sandwich layer diameter；B）, back-fire relief sandwich layer making：1）, using the corrugated guipure of Mold Making；2）, using the plate shaped guipure of Mold Making；3）, a piece of corrugated guipure and a piece of plate shaped guipure be closely wound into a piece of sandwich layer, corrugated guipure must not be loosened with plate shaped guipure, and every core layer surface is answered smooth, and Glabrous pierces；Pore-size on every sandwich layer fire-retardant core layer, answers substantially uniformity consistent, no blocking；4）, two panels sandwich layer is combined into back-fire relief sandwich layer, the runner on a piece of sandwich layer and the angled arrangement of runner on another piece sandwich layer；5）, back-fire relief sandwich layer should ensure that each hole is unimpeded.The present invention can make cargo tank breathe the existing respiratory function of attachment, and have back-fire relief function, and pressure in cargo tank is usually kept to provide protection to cargo tank in a certain range.
Description
Technical field
The invention belongs to naval vessel parts technical fields, are related to a kind of manufacture craft of naval vessel back-fire relief breathing unit.
Background technology
With the development of economy with the needs of national defence guarantee, present naval vessels quantity is more and more, technology protection, safety
Prevention work is also convex to be become more and more important, therefore naval equipment portion proposes ship's fitting optimization and improves requirement.According to
GJB4000-2000《General Specifications For Ships》541.6.8 clause regulation：" each cargo tank should be filled and be cut before entering total gas permeable devices
Only valve or other quarantine measures ", CB/T3650-94《Oil carrier Design of Breathing System principle》3.2.3 clause regulation：" when using group
When mould assembly system, isolating device is set up between each cargo tank and public manifold "；The fire retardant device of the prior art is working
When, it can not ensure the eupnea of cargo tank.
Invention content
The purpose of the present invention will solve above-mentioned technical problem.
The object of the present invention is achieved like this：A kind of naval vessel back-fire relief breathing unit, including valve body, feature exist
In：The valve body is four-way valve, and the right end of four-way valve is provided with outlet(discharge) flange disk；The left end of four-way valve connects with flame arrester arrangement
It connects, flame arrester arrangement is made of back-fire relief sandwich layer and external back-fire relief shell, and back-fire relief sandwich layer is drawer-type structure in back-fire relief shell；Back-fire relief
The left end of shell is provided with suction flange, and the top of the flanged joint of suction flange and cargo tank interface, back-fire relief shell passes through gasket B
It is connect with boring cover, the right end of back-fire relief shell and the junction of four-way valve are provided with safety valve；Upper cover is provided at the top of four-way valve,
Gasket C is provided between upper cover and the top plate of four-way valve；The bottom of four-way valve is provided with the fixing sleeve being vertically arranged, fixing sleeve
Left part is provided with opening, and getter assembly is provided in fixing sleeve, and getter assembly is made of vacuum valve seat and vacuum valve disc, vacuum valve
Seat is two sections of multi-diameter shafts, the big ends of two sections of multi-diameter shafts fixing sleeve subjacent and pass through the step surface of gasket A and fixing sleeve
Connection, two sections of multi-diameter shafts are provided centrally with through-hole A, vacuum valve disc are provided with above the small end of two sections of multi-diameter shafts；Vacuum valve disc
Top center be provided with valve opening；The bottom surface of fixing sleeve and the bottom surface of vacuum valve seat are provided with air entry screen cover；Fixing sleeve
Top inner ring is provided with expiration component, and expiration component is made of pressure valve seat and pressure valve disc, and pressure valve seat is provided centrally with
Through-hole B, pressure valve disc is provided at the top of pressure valve seat, and the valve rod of pressure valve disc passes through through-hole B and the valve at the top of vacuum valve disc
Hole connects；Back-fire relief sandwich layer in the flame arrester arrangement is made of two panels sandwich layer, and every sandwich layer is wound by two layers of stainless steel band
It forms, one layer of stainless steel band is corrugated guipure, and another layer of stainless steel band is plate shaped guipure, if being both provided on every sandwich layer
The through-hole of the through-hole of dry triangle, each triangle forms runner, the angled arrangement of runner of two panels sandwich layer；The pressure
Power valve seat, pressure valve disc, vacuum valve disc, vacuum valve seat center is on same center line and the center line is located at four-way valve
The left side of center line.
A kind of manufacture craft of naval vessel back-fire relief breathing unit, the back-fire relief sandwich layer in the flame arrester arrangement includes following behaviour
Make step：
A）, according to the ventilatory capacity of pipeline require, determine back-fire relief sandwich layer diameter；
B）, back-fire relief sandwich layer making：
1）, using the corrugated guipure of Mold Making；
2）, using the plate shaped guipure of Mold Making；
3）, a piece of corrugated guipure and a piece of plate shaped guipure be closely wound into a piece of sandwich layer, corrugated guipure with it is flat
Plate shape guipure must not loosen, and every core layer surface answers smooth, Glabrous thorn；The through-hole ruler of triangle on every sandwich layer
It is very little, answer substantially uniformity consistent, no blocking；
4）, two panels sandwich layer is combined into back-fire relief sandwich layer, the runner on a piece of sandwich layer and the runner angulation on another sandwich layer
Degree arrangement；
5）, back-fire relief sandwich layer should ensure that each hole is unimpeded.
The present invention can make cargo tank breathe the existing respiratory function of attachment, and have back-fire relief function, and pressure in cargo tank is usually kept to exist
A certain range provides protection to cargo tank；Occur fire when, can prevent out of my cabin flame scurry into cargo tank, prevent different cabin flames
It mutually alters, while can guarantee the eupnea of cargo tank again, promoting and applying has good economic and social benefit.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention.
Fig. 2 is the left view of the present invention.
In figure：1. valve body；2. pressure valve seat；3. pressure valve disc；4. vacuum valve disc；5. vacuum valve seat；6. gasket A；7.
Air entry screen cover；8. safety valve；9. flame arrester arrangement；10. gasket B；11. upper cover；12. gasket C.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings, but not as limitation of the present invention：
A kind of naval vessel back-fire relief breathing unit, including valve body 1, the valve body 1 are four-way valve, the right end of four-way valve
It is provided with outlet(discharge) flange disk；The left end of four-way valve is connect with flame arrester arrangement 9, and flame arrester arrangement 9 is by back-fire relief sandwich layer and external back-fire relief
Shell forms, and back-fire relief sandwich layer is drawer-type structure in back-fire relief shell；The left end of back-fire relief shell is provided with suction flange, import method
The blue flanged joint with cargo tank interface, the top of back-fire relief shell are connect by gasket B10 with boring cover, the right end of back-fire relief shell and
The junction of four-way valve is provided with safety valve 8；Be provided with upper cover 11 at the top of four-way valve, the top plate of upper cover 11 and four-way valve it
Between be provided with gasket C12；The bottom of four-way valve is provided with the fixing sleeve being vertically arranged, and the left part of fixing sleeve is provided with opening, Gu
It is provided with getter assembly in fixed set, getter assembly is made of vacuum valve seat 5 and vacuum valve disc 4, and vacuum valve seat 5 is two sections of ladders
Axis, the big ends of two sections of multi-diameter shafts fixing sleeve subjacent and pass through the connection of the step surface of gasket A6 and fixing sleeve, two sections of ranks
Terraced axis is provided centrally with through-hole A, and vacuum valve disc 4 is provided with above the small end of two sections of multi-diameter shafts；In the top of vacuum valve disc 4
The heart is provided with valve opening；The bottom surface of fixing sleeve and the bottom surface of vacuum valve seat 5 are provided with air entry screen cover 7；In the top of fixing sleeve
Circle is provided with expiration component, and expiration component is made of pressure valve seat 2 and pressure valve disc 3, and being provided centrally with for pressure valve seat 2 is logical
The top of hole B, pressure valve seat 2 are provided with pressure valve disc 3, and the valve rod of pressure valve disc 3 passes through through-hole B and 4 top of vacuum valve disc
Valve opening connects；Back-fire relief sandwich layer in the flame arrester arrangement 9 is made of two panels sandwich layer, and every sandwich layer is by two layers of stainless steel band
It is entwined, one layer of stainless steel band is corrugated guipure, and another layer of stainless steel band is plate shaped guipure, is all provided on every sandwich layer
It is equipped with the through-hole of several triangles, the through-hole of each triangle forms runner, the angled arrangement of runner of two panels sandwich layer；
The pressure valve seat 2, pressure valve disc 3, vacuum valve disc 4, vacuum valve seat 5 center on same center line and in this
Heart line is located at the left side of four-way valve center line.
A kind of manufacture craft of naval vessel back-fire relief breathing unit, the back-fire relief sandwich layer in the flame arrester arrangement 9 includes following
Operating procedure：
A）, according to the ventilatory capacity of pipeline require, determine back-fire relief sandwich layer diameter；
B）, back-fire relief sandwich layer making：
1）, using the corrugated guipure of Mold Making；
2）, using the plate shaped guipure of Mold Making；
3）, a piece of corrugated guipure and a piece of plate shaped guipure be closely wound into a piece of sandwich layer, corrugated guipure with it is flat
Plate shape guipure must not loosen, and every core layer surface answers smooth, Glabrous thorn；The clear size of opening of triangle on every sandwich layer,
Answer substantially uniformity consistent, no blocking；
4）, two panels sandwich layer is combined into back-fire relief sandwich layer, the runner on a piece of sandwich layer and the runner angulation on another sandwich layer
Degree arrangement；
5）, back-fire relief sandwich layer should ensure that each hole is unimpeded.
When it is implemented, one）, the present invention functional parameter it is as follows：
1）When cargo tank pressure is more than control positive pressure, air is discharged, protection is provided to cargo tank；
2）When cargo tank pressure is less than control negative pressure, air is sucked, protection is provided to cargo tank；
3）When cargo tank pressure is without departing from control pressure, unit is closed, and prevents fuel oil volatilization, and it is dirty to reduce environment
Dye；
4）Flame can be prevented to scurry into cargo tank；
5）While back-fire relief, it is ensured that the eupnea of cargo tank；
Two）, the present invention performance indicator it is as follows：
1）Design pressure：0.3MPa；
2）Opening pressure：Pressure valve≤+ 0.021MPa；Vacuum valve≤- 0.002MPa；
3）Back-fire relief ability：The 2h of resistance to burning, no tempering；Explosion arrestment performance：Safe back-fire relief speed：130m/s；
4）Ventilatory capacity：≥760 m³/h；
5) safety dumping pressure：0.023MPa；
Three）, expand impact require：B grades；
Four）, average time between failures：MTBF≥10000h；
Five）, the present invention operation principle：
1）, expiration principle：
Cargo tank is communicated with the lower end of pressure valve disc 3, and air is communicated with the upper end of pressure valve disc 3, when pressure is being controlled in cargo tank
When within the scope of pressing pressure, cargo tank pressure is less than the active force of pressure valve disc 3 weight of pressure valve disc 3, due to gravity, pressure
Power valve is closed, and cargo tank is disconnected with extraneous channel；
Oiling or environment temperature increase, and pressure in cargo tank is caused to increase rapidly, when more than control positive pressure, cargo tank gas pair
The active force of pressure valve disc 3 is more than the own wt of pressure valve disc 3, and pressure valve opens vent the air overboard, and vacuum valve closes at this time
It closes, cargo tank pressure decreases, and when pressure drops to control positive pressure in cabin, pressure valve disc 3 is closed by gravity, pressure valve
It closes, cargo tank is disconnected with extraneous channel；
2）, air-suction：
Cargo tank is communicated with the upper end of vacuum valve disc 4, and air is communicated with the lower end of vacuum valve disc 4, when pressure is being controlled in cargo tank
When within the scope of pressing pressure, air is less than the active force of vacuum valve disc 4 weight of vacuum valve disc 4, due to gravity, vacuum valve
It closes；
Oil suction or temperature reduce, and pressure in cargo tank is caused to reduce rapidly, and when less than control negative pressure, air is to vacuum valve disc
4 active force is more than the own wt of vacuum valve disc 4, and vacuum valve is opened, and pressure valve is closed at this time, and cargo tank sucks air, cargo tank
Pressure rise；When pressure rises to control negative pressure in cabin, vacuum valve disc 4 is closed by gravity, vacuum valve；
3）, back-fire relief principle：
Back-fire relief function is realized by the back-fire relief sandwich layer in flame arrester arrangement 9；Back-fire relief sandwich layer is made of two panels sandwich layer, every sandwich layer by
Two layers of ultra-thin stainless steel band is entwined, one layer of steel band be pressed into it is corrugated, another layer be flat strip, it is numerous small by three
Angular runner forms channel, and the runner of two panels sandwich layer forms a dog-ear；
Fray-out of flame principle is heat transfer effect and wall effect；When flame is by back-fire relief sandwich layer, it is decomposed by runner numerous
Tiny flame, wall effect is apparent, and heat transfer area is big, reduces combustion activity molecule, flame temperature is made to decline rapidly, burning
It cannot continue and extinguish, back-fire relief is with obvious effects.
The fire-retardant core laminar flow of embodiment one, flame arrester arrangement 9 leads to areal calculation, ventilatory capacity：>=760 m3/h, it is assumed that gas stream
Speed is 7.5m/s（GJB4000《General Specifications For Ships》507.8.13 clause：Air velocity in pipes is not more than 7.6m/s）；It needs
Circulation area：28148.15mm²；The logical ratio of fire-retardant core laminar flow：0.38；Back-fire relief sandwich layer diameter：320mm（Calculate 307.11mm）.
Embodiment two, sealing surface grinding technique, back-fire relief breathing unit are closed, and No leakage are answered, to metal sealing
Face surface roughness requirements are high, and surface roughness determines that the sealing performance of product, metallic sealing section must be by grindings, to reach
Sealing performance requirement, using following measures, it is ensured that surface accuracy, 1）Using linear sealing；2）When processing, ensure the table of sealing surface
Surface roughness；3）Sealing surface carries out facing-up；4）It is correct to select grinding agent；5）With suitable grinding technics；6）After grinding, sample is used
Block comparison abradant surface is detected.
The above embodiment of the present invention is only to clearly demonstrate examples of the invention, but be not limited to this hair
Bright protection domain, all equivalent technical solutions also belong to scope of the invention, and scope of patent protection of the invention should be by each
Item claim limits.
Claims (1)
1. a kind of naval vessel back-fire relief breathing unit, including valve body（1）, it is characterised in that：The valve body（1）For four-way
The right end of valve, four-way valve is provided with outlet(discharge) flange disk；The left end and flame arrester arrangement of four-way valve（9）Connection, flame arrester arrangement（9）By hindering
Fiery sandwich layer and external back-fire relief shell composition, back-fire relief sandwich layer are drawer-type structure in back-fire relief shell；The left end of back-fire relief shell is arranged
There are suction flange, the top of the flanged joint of suction flange and cargo tank interface, back-fire relief shell to pass through gasket B（10）Connect with boring cover
It connects, the right end of back-fire relief shell and the junction of four-way valve are provided with safety valve（8）；Upper cover is provided at the top of four-way valve（11）,
Upper cover（11）Gasket C is provided between the top plate of four-way valve（12）；The bottom of four-way valve is provided with the fixing sleeve being vertically arranged,
The left part of fixing sleeve is provided with opening, getter assembly is provided in fixing sleeve, getter assembly is by vacuum valve seat（5）With vacuum valve disc
（4）Composition, vacuum valve seat（5）For two sections of multi-diameter shafts, the big ends of two sections of multi-diameter shafts fixing sleeve subjacent and pass through gasket A
（6）It is connect with the step surface of fixing sleeve, two sections of multi-diameter shafts are provided centrally with through-hole A, setting above the small end of two sections of multi-diameter shafts
There is vacuum valve disc（4）；Vacuum valve disc（4）Top center be provided with valve opening；The bottom surface of fixing sleeve and vacuum valve seat（5）Bottom surface
It is provided with air entry screen cover（7）；The top inner ring of fixing sleeve is provided with expiration component, and expiration component is by pressure valve seat（2）With
Pressure valve disc（3）Composition, pressure valve seat（2）Be provided centrally with through-hole B, pressure valve seat（2）Top be provided with pressure valve disc
（3）, pressure valve disc（3）Valve rod pass through through-hole B and vacuum valve disc（4）The valve opening at top connects；The flame arrester arrangement（9）In
Back-fire relief sandwich layer be made of two panels sandwich layer, every sandwich layer is entwined by two layers of stainless steel band, and one layer of stainless steel band is ripple
Shape guipure, another layer of stainless steel band are plate shaped guipure, and the through-hole of several triangles, Mei Gesan are both provided on every sandwich layer
Angular through-hole forms runner, the angled arrangement of runner of two panels sandwich layer；The pressure valve seat（2）, pressure valve disc（3）、
Vacuum valve disc（4）, vacuum valve seat（5）Center is on same center line and the center line is located at a left side for four-way valve center line
Side；
Operation principle：
1）, expiration principle：
Cargo tank and pressure valve disc（3）Lower end communicate, air and pressure valve disc（3）Upper end communicate, when pressure is being controlled in cargo tank
When within the scope of pressing pressure, cargo tank pressure is to pressure valve disc（3）Active force be less than pressure valve disc（3）Weight, due to gravity,
Pressure valve is closed, and cargo tank is disconnected with extraneous channel；
Oiling or environment temperature increase, and pressure in cargo tank is caused to increase rapidly, and when more than control positive pressure, cargo tank gas is to pressure
Valve disc（3）Active force be more than pressure valve disc（3）Own wt, pressure valve open vent the air overboard, at this time vacuum valve close
It closes, cargo tank pressure decreases, when pressure drops to control positive pressure in cabin, pressure valve disc（3）By gravity, pressure valve is closed
It closes, cargo tank is disconnected with extraneous channel；
2）, air-suction：
Cargo tank and vacuum valve disc（4）Upper end communicate, air and vacuum valve disc（4）Lower end communicate, when pressure is being controlled in cargo tank
When within the scope of pressing pressure, air is to vacuum valve disc（4）Active force be less than vacuum valve disc（4）Weight, due to gravity, vacuum
Valve is closed；
Oil suction or temperature reduce, and pressure in cargo tank is caused to reduce rapidly, and when less than control negative pressure, air is to vacuum valve disc（4）
Active force be more than vacuum valve disc（4）Own wt, vacuum valve open, at this time pressure valve close, cargo tank suck air, cargo tank
Pressure rise；When pressure rises to control negative pressure in cabin, vacuum valve disc（4）By gravity, vacuum valve is closed；
3）, back-fire relief principle：
Back-fire relief function is by flame arrester arrangement（9）In back-fire relief sandwich layer realize；Fray-out of flame principle is heat transfer effect and wall effect；Fire
When flame is by back-fire relief sandwich layer, numerous tiny flames are decomposed by runner, wall effect is apparent, and heat transfer area is big, reduces burning
Bioactive molecule makes flame temperature decline rapidly, and burning cannot continue and extinguish, and back-fire relief is with obvious effects；
The flame arrester arrangement（9）In back-fire relief sandwich layer include following operating procedure：
A）, according to the ventilatory capacity of pipeline require, determine back-fire relief sandwich layer diameter；
B）, back-fire relief sandwich layer making：
1）, using the corrugated guipure of Mold Making；
2）, using the plate shaped guipure of Mold Making；
3）, a piece of corrugated guipure and a piece of plate shaped guipure be closely wound into a piece of sandwich layer, corrugated guipure with it is plate shaped
Guipure must not loosen, and every core layer surface answers smooth, Glabrous thorn；The clear size of opening of triangle on every sandwich layer, has been answered
Full uniformity, no blocking；
4）, two panels sandwich layer is combined into back-fire relief sandwich layer, the runner on a piece of sandwich layer is at an angle of cloth with the runner on another sandwich layer
It sets；
5）, back-fire relief sandwich layer should ensure that each hole is unimpeded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892082.4A CN106195374B (en) | 2016-10-13 | 2016-10-13 | A kind of manufacture craft of naval vessel back-fire relief breathing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892082.4A CN106195374B (en) | 2016-10-13 | 2016-10-13 | A kind of manufacture craft of naval vessel back-fire relief breathing unit |
Publications (2)
| Publication Number | Publication Date |
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| CN106195374A CN106195374A (en) | 2016-12-07 |
| CN106195374B true CN106195374B (en) | 2018-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892082.4A Active CN106195374B (en) | 2016-10-13 | 2016-10-13 | A kind of manufacture craft of naval vessel back-fire relief breathing unit |
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Families Citing this family (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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| RU2384783C1 (en) * | 2009-02-13 | 2010-03-20 | Олег Савельевич Кочетов | Valve with fire-resistor |
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| CN102269287A (en) * | 2011-05-31 | 2011-12-07 | 天津恒仁石油设备有限公司 | Anti-explosion fire-stopping breather valve |
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| CN204942668U (en) * | 2015-09-17 | 2016-01-06 | 罗浮阀门集团有限公司 | A kind of fire-retardant breather valve |
| CN205639744U (en) * | 2016-05-10 | 2016-10-12 | 乐清市阀门厂 | Formula that opens ice gravity oil hold pair breather valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150413Y (en) * | 1993-03-23 | 1993-12-22 | 中国石化北京设计院 | Fire-retardant breather valve for oil tank |
| CN2580996Y (en) * | 2002-11-25 | 2003-10-22 | 冯忠 | Drawer-type corrugated flame trap |
| CN201099499Y (en) * | 2007-10-12 | 2008-08-13 | 中国石化股份胜利油田分公司现河采油厂 | Petroleum storage tank explosion-proof fire retardant respiring valve |
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| RU2384783C1 (en) * | 2009-02-13 | 2010-03-20 | Олег Савельевич Кочетов | Valve with fire-resistor |
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| CN205639744U (en) * | 2016-05-10 | 2016-10-12 | 乐清市阀门厂 | Formula that opens ice gravity oil hold pair breather valve |
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| Publication number | Publication date |
|---|---|
| CN106195374A (en) | 2016-12-07 |
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