CN207333858U - Deadweight safety valve and oil tank - Google Patents
Deadweight safety valve and oil tank Download PDFInfo
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- CN207333858U CN207333858U CN201721225569.3U CN201721225569U CN207333858U CN 207333858 U CN207333858 U CN 207333858U CN 201721225569 U CN201721225569 U CN 201721225569U CN 207333858 U CN207333858 U CN 207333858U
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Abstract
The utility model provides a kind of deadweight safety valve and oil tank, including：Gas-guide tube, separating tube, storage cylinder, Seal Oil and condensing unit；Separating tube is threaded through in storage cylinder and between bottom plate and the lower end of separating tube at a distance of pre-determined distance；The upper end of gas-guide tube is through bottom plate and is contained in separating tube, and the upper end of gas-guide tube is located at the top of separating tube bottom；The lower end of gas-guide tube is used to connect with the top of oil tank；Seal Oil is filled in storage cylinder, and the liquid level of Seal Oil is higher than the lower end of separating tube；Condensing unit is arranged on the top of gas-guide tube, for making the vapor by gas-guide tube effusion liquefy, and flows back into gas-guide tube；Avoid and liquefied by inner wall of the vapor in gas-guide tube escaping gas in separating tube, water may not flow into Seal Oil, and the volume of storage cylinder interior sealing oil will not change, and the Opening pressure of deadweight safety valve is accurate.
Description
Technical field
It the utility model is related to petroleum storage equipment manufacturing technology, more particularly to a kind of deadweight safety valve and oil tank.
Background technology
After oil comes out from oil mining, it is necessary to by petroleum storage in oil tank, when in use by the stone in oil tank
Oil is released by pipeline.Breather valve is usually provided with the top of oil tank, breather valve includes pressure valve and vacuum valve；When draining the oil,
Air pressure in oil tank declines, and vacuum valve is opened at this time, and air is entered in oil tank, to ensure that oil can be released smoothly.Work as oil
When oil in tank is volatilized so that the air pressure in oil tank is raised to a certain extent, pressure valve is opened, and the gas in oil tank enters
In air, in order to avoid oil pressure inside the tank is excessive when draining the oil, cause oil by being ejected in pipeline, or serious may cause
Fuel tank explosion.
In the prior art, since the structure of breather valve is complex, it occur frequently that failure so that pressure valve and/or
Vacuum valve cannot be normally-open, therefore often sets deadweight safety valve at the top of oil tank, when breather valve breaks down, to lead to
Cross the stabilization that deadweight safety valve ensures air pressure in oil tank.Fig. 1 is the structure diagram of deadweight safety valve in the prior art, be refer to
Fig. 1.Deadweight safety valve includes separating tube 20, storage cylinder 10 and gas-guide tube 30；Separating tube 20 is threaded through in storage cylinder 10, and point
There is gap between the upper end closed of cylinder 20, the bottom of separating tube 20 and the bottom of storage cylinder 10, the side wall of separating tube 20 is not
Contacted with storage cylinder 10；The lower end of gas-guide tube 30 is connected with oil tank, and the bottom of upper end through the storage cylinder 10 of gas-guide tube 30 houses
In separating tube 20, the bottom of separating tube 20 is located between 10 bottom of 30 top of gas-guide tube and storage cylinder.Seal Oil 40 is filled in
The bottom of storage cylinder 10 and liquid level are higher than the bottom of separating tube 20.When air pressure is higher in oil tank, the Seal Oil in separating tube 20
40 enter between separating tube 20 and storage cylinder 10 under the effect of the pressure so that the liquid level in separating tube 20 reduces, when liquid level is low
Gas can be entered between separating tube 20 and storage cylinder 10 when 20 bottom of separating tube, and then is drained into air；When in oil tank
When pressure reduces, Seal Oil 40 flows in the opposite direction, and air is entered in oil tank；And then ensure the flat of oil tank inner and outer air pressure
Weighing apparatus.
But in the prior art, since letter has moisture in oil, by the top of gas-guide tube 30 after the moisture evaporation in oil tank
Enter in separating tube 20, and then vapor liquefies in the inner wall of separating tube 20, water after liquefaction along the inside of separating tube 20 into
Enter into Seal Oil 40, cause the volume of Seal Oil 40 to increase so that the Opening pressure of deadweight safety valve is inaccurate；In addition in temperature
Water when spending relatively low in Seal Oil 40 freezes, and prevents Seal Oil 40 from flowing so that deadweight safety valve can not be opened, and can not adjust oil
Air pressure in tank, is prone to accidents
Utility model content
The utility model provides a kind of deadweight safety valve and oil tank to solve, by gas-guide tube after the moisture evaporation in oil tank
Top is entered in separating tube, and then vapor liquefies in the inner wall of separating tube, and the water after liquefaction enters along the inside of separating tube
Into Seal Oil, the volume of Seal Oil is caused to increase so that the technical problem of the Opening pressure inaccuracy of deadweight safety valve.
The utility model provides a kind of deadweight safety valve, including：Gas-guide tube, separating tube, storage cylinder, Seal Oil and condensation
Device；The lower end of the storage cylinder is provided with bottom plate, the upper end closed of the separating tube, and the separating tube is threaded through the storage
At a distance of pre-determined distance in cylinder and between the bottom plate and the lower end of the separating tube, the side wall of the separating tube and the storage
There is the first gap between the side wall of cylinder；The upper end of the gas-guide tube is through the bottom plate and is contained in the separating tube, institute
The upper end for stating gas-guide tube is located at the top of the separating tube bottom, between the side wall of the separating tube and the side wall of the gas-guide tube
With the second gap；The lower end of the gas-guide tube is used to connect with the top of oil tank；The Seal Oil is filled in the storage cylinder
Interior, the liquid level of the Seal Oil is higher than the lower end of the separating tube；The condensing unit is arranged on the top of the gas-guide tube, uses
Liquefy, and flow back into the gas-guide tube in the vapor for making to be escaped by the gas-guide tube.
Deadweight safety valve as described above, it is preferable that the condensing unit includes condensation net, and the condensation guard is located at institute
State the upper end of gas-guide tube.
Deadweight safety valve as described above, it is preferable that inner recess of the middle part of the condensation net to the gas-guide tube.
Deadweight safety valve as described above, it is preferable that the condensing unit further includes diversion pipe, the diversion pipe first end
Area of section be more than the diversion pipe second end area of section；The second end of the diversion pipe and the upper end of the gas-guide tube
Connection, the first end of the diversion pipe and the condensation net connection.
Deadweight safety valve as described above, it is preferable that further include bend pipe, the axis of the axis of the bend pipe and the gas-guide tube
Line is in a default angle；The bottom of the gas-guide tube is connected with one end of the bend pipe, and the other end of the bend pipe is used for and institute
State oil tank connection.
Deadweight safety valve as described above, it is preferable that the area of section of the bend pipe towards described gas-guide tube one end is more than
Area of section of the bend pipe towards described oil tank one end.
Deadweight safety valve as described above, it is preferable that further include cover board, the cover board is located at the upper of the storage cylinder
Portion.
Deadweight safety valve as described above, it is preferable that the side of the cover board towards the storage cylinder has been formed down ring
Shape is raised, and the annular projection is located at the outside of the storage cylinder, the top of the bottom storage cylinder of the annular projection
Closer to the bottom plate.
Deadweight safety valve as described above, it is preferable that formed with annular flange, the ring on the lateral wall of the storage cylinder
Formed with the annular recess for housing the annular projection on shape flange, the is equipped between the annular projection and the annular recess
Three gaps.
The utility model also provides a kind of oil tank, including：Tank body and deadweight safety valve as described above, the hydraulic pressure peace
Full valve is arranged on the top of the oil tank.
Deadweight safety valve and oil tank provided by the utility model, the lower end of gas-guide tube are used to connect with the top of oil tank；It is close
Oil sealing is filled in storage cylinder, and the liquid level of Seal Oil is higher than the lower end of separating tube；Condensing unit is arranged on the top of gas-guide tube, uses
Liquefy, and flow back into gas-guide tube in the vapor for making to be escaped by gas-guide tube；Avoid by the water in gas-guide tube escaping gas
Steam liquefies in the inner wall of separating tube, and water may not flow into Seal Oil, and the volume of storage cylinder interior sealing oil will not change, hydraulic pressure
The Opening pressure of safety valve is accurate.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of deadweight safety valve in the prior art；
Fig. 2 is the structure diagram for the deadweight safety valve that the utility model embodiment provides.
Description of reference numerals：
10, storage cylinder；101, annular flange；
20, separating tube；201, cover board；
202, annular projection；30, gas-guide tube；
301, condense net；302, diversion pipe；
303, bend pipe；40, Seal Oil.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the utility model protection.In the case where there is no conflict, the feature in following embodiment and embodiment can be mutual group
Close.
In the utility model, unless otherwise clear and definite regulation, the art such as term " installation ", " connected ", " connection ", " fixation "
Language should be interpreted broadly, for example, it may be being fixedly connected or removably connecting, or be integrally formed, and can be machinery
Connection or electrical connection can communicate each other；It can be directly connected, can also be indirectly connected with by intermediate medium,
Can be the interaction relation of connection inside two elements or two elements, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
The oil extracted out out of oil well needs to be stored in oil tank, to be incited somebody to action when in use by the pipeline connected with oil tank
Oil in oil tank is released；Since oil tank is a closed container, in order to which the oil ensured in oil tank can be smoothly from pipe
Released in road, breather valve is often provided with oil tank.Breather valve includes pressure valve and vacuum valve；When draining the oil, the gas in oil tank
Drops, at this time vacuum valve open, air is entered in oil tank, to ensure that oil can be released smoothly；When the oil in oil tank
When volatilization is so that the air pressure in oil tank is raised to a certain extent, pressure valve is opened, and the gas in oil tank is entered in air, in order to avoid
When draining the oil, oil pressure inside the tank is excessive, causes oil by being ejected in pipeline, or cause fuel tank explosion.
Fig. 2 is the structure diagram for the deadweight safety valve that the utility model embodiment provides, it is with reference to Fig. 2.The present embodiment
A kind of deadweight safety valve is provided, including：Gas-guide tube 30, separating tube 20, storage cylinder 10, Seal Oil 40 and condensing unit；Storage
The lower end of cylinder 10 is provided with bottom plate, the upper end closed of separating tube 20, and separating tube 20 is threaded through in storage cylinder 10 and bottom plate and separation
At a distance of pre-determined distance between the lower end of cylinder 20, there is the first gap between the side wall of separating tube 20 and the side wall of storage cylinder 10；Lead
The upper end of tracheae 30 is through bottom plate and is contained in separating tube 20, and the upper end of gas-guide tube 30 is located at the top of 20 bottom of separating tube,
There is the second gap between the side wall of separating tube 20 and the side wall of gas-guide tube 30；The lower end of gas-guide tube 30 is used for the top with oil tank
Connection；Seal Oil 40 is filled in storage cylinder 10, and the liquid level of Seal Oil 40 is higher than the lower end of separating tube 20；Condensing unit is arranged on
The top of gas-guide tube 30, the vapor for making to be escaped by gas-guide tube 30 liquefies, and flows back into gas-guide tube 30.
Specifically, the section of storage cylinder 10 can the regular shape such as rounded, triangle rectangle, or do not advised in others
Then shape, the present embodiment do not limit the cross sectional shape of storage barrel.The upper end of storage cylinder 10 has one to be open, under storage cylinder 10
First through hole is offered on the bottom plate at end, gas-guide tube 30 is threaded through in first through hole, and the upper end of gas-guide tube 30 is contained in storage
In cylinder 10.The present embodiment does not limit the connection mode between gas-guide tube 30 and first through hole, as long as Seal Oil can be prevented
40 overflow between gas-guide tube 30 and first through hole side wall；Such as：The side wall of gas-guide tube 30 and the side wall of first through hole it
Between can connect by welding, alternatively, set sealing ring between the side wall of gas-guide tube 30 and the side wall of first through hole,
To ensure the leakproofness between gas-guide tube 30 and first through hole side wall；In addition, it can be formed on the side wall of gas-guide tube 30 outside first
Screw thread, forms the first internal thread coordinated with the first external screw thread on the side wall of first through hole, passes through the first internal thread and first
External screw thread coordinates the connection realized between gas-guide tube 30 and first through hole side wall.
Specifically, the upper end of separating tube 20 can be sealed by any device that gas can be prevented to be escaped by 20 upper end of separating tube
Close, the present embodiment is not restricted this；Such as：The upper end of separating tube 20 is welded with sealing plate, by sealing plate by separating tube 20
Upper end closed, or side wall of the sealing plate with separating tube 20 by way of casting be integrally formed；It can in addition contain separate
For the inner wall of cylinder 20 formed with the second internal thread, stud screws in the second internal thread the closing realized to 20 top of separating tube.
The side wall of separating tube 20 is located between 30 outer wall of gas-guide tube and storage top tank structure, and separating tube 20 can be with storage cylinder
10th, gas-guide tube 30 or oil tank connection, so as to which separating tube 20 is arranged in storage cylinder 10 so that the bottom and bottom of separating tube 20
Apart there is the first gap between pre-determined distance and the side wall of separating tube 20 and the side wall of storage cylinder 10 between plate, separating tube 20
There is the second gap between the side wall of side wall and gas-guide tube 30；The present embodiment is not restricted this；Such as：In separating tube 20 and storage
Connecting pole is provided between cylinder 10, the both ends of connecting pole can connect with separating tube 20 and storage cylinder 10 by welding respectively
Connect, can also be connected respectively with separating tube 20 and storage cylinder 10 by bolted connection；In addition connecting pole is arranged on air guide
Between pipe 30 and separating tube 20, the both ends of connecting pole can connect with gas-guide tube 30 and separating tube 20 by welding respectively
Connect, can also be connected respectively with gas-guide tube 30 and separating tube 20 by bolted connection；In addition on the top of separating tube 20
There can be an installation frame, installation frame is erected at the top of oil tank, to realize the connection between separating tube 20 and oil tank.
Preferably, pre-determined distance is ensures that Seal Oil 40 can be by any distance that is flowed through between separating tube 20 and bottom plate；
First gap and the second gap can be that can ensure that Seal Oil 40 between separating tube 20 and storage cylinder 10 and can separate
Any distance flowed between cylinder 20 and gas-guide tube 30, the present embodiment are without limitation.
Preferably, by adjusting the size of pre-determined distance, thus it is possible to vary the liquid level of Seal Oil 40 and 20 bottom of separating tube it
Between distance, to adjust the Opening pressure of deadweight safety valve；Or the amount of 10 interior sealing oil 40 of storage cylinder is filled in by adjusting,
The distance between liquid level and 20 bottom of separating tube of Seal Oil 40 can be changed, to realize the tune to hydraulic safe valve opening pressure
Section.It is further preferred that Seal Oil 40 can be that any boiling point is high and the liquid at fusing point bottom, so as not to Seal Oil 40 at room temperature because
Evaporate too fast, cause Seal Oil 40 to reduce, the Opening pressure of deadweight safety valve reduces, or Seal Oil 40 liquid level less than separating
The bottom of cylinder 20 so that deadweight safety valve is constantly in the state of opening；Meanwhile Seal Oil 40 will not be low because of temperature in winter
In fusing point so that Seal Oil 40 solidifies, and causes deadweight safety valve to open.Preferably, Seal Oil 40 can include but unlimited
In light diesel fuel or transformer oil.
Specifically, the top of oil tank can offer a gas port, and the lower end of gas-guide tube 30 can be by welding
Connected with gas port；Alternatively, the lower end of gas-guide tube 30 has the first mounting flange, the outside of gas port is convex with the second installation
Connected before edge, the first mounting flange and the second mounting flange by fastener；Preferably, fastener includes but not limited to spiral shell
Bolt.
Specifically, condensing unit can be that will can arbitrarily be liquefied by the vapor in 30 escaping gas of gas-guide tube, and
The device for making the water that liquefaction is formed flow into gas-guide tube 30；Such as：Condensing unit can include a condensation cap, condense the middle part of cap
A tapered passage is offered, the area of section of passage lower end is more than the area of section of passage upper end, and the lower end of passage is with leading
The upper end connection of tracheae 30；Condensate film is provided with the madial wall of passage；So as to the gas in passage is flowed into by gas-guide tube 30
In vapor liquefy on condensate film, and be dropped into from condensate film in gas-guide tube 30.Preferably, can be in the inner wall of passage
And/or condenser pipe is set on condensate film, condenser pipe is connected with exterior refrigeration plant, with by refrigeration plant that temperature is relatively low
Refrigerating fluid inputs condenser pipe, cools down to the inner wall and/or condensate film of passage, to strengthen the liquefaction effect of vapor.
The course of work of deadweight safety valve provided in this embodiment is：When the gas pressure rise in oil tank, separating tube
Gas pressure intensity increase in 20, so that Seal Oil 40 between separating tube 20 and gas-guide tube 30 is to separating tube 20 and storage cylinder
Flowed between 10, and then raise the liquid level of the Seal Oil 40 between separating tube 20 and storage cylinder 10, when the gas pressure in oil tank
When power is equal to the sum of head of liquid of Seal Oil 40 between external atmosphere pressure and separating tube 20 and storage cylinder 10, Seal Oil 40 is stopped
Fluid stopping is moved；When the pressure in oil tank continues to increase to the Opening pressure higher than deadweight safety valve, separating tube 20 and gas-guide tube 30
Between liquid level be less than the bottom of separating tube 20, the sealing between separating tube 20 and storage cylinder 10 more than 20 bottom of separating tube
Oil 40 continues up flowing, and with the flowing of Seal Oil 40, Seal Oil 40 more than 20 bottom of separating tube is attached to separating tube 20
Gradually increase with the amount on storage cylinder 10, cause Seal Oil 40 more than 20 bottom of separating tube to gradually decrease, lose to gas
Sealing process；Gas is escaped by the top of storage cylinder 10, and the gas pressure in oil tank is reduced to the Opening pressure of deadweight safety valve
Below.When the air pressure in oil tank decreases below atmospheric pressure, Seal Oil 40 is flowed between separating tube 20 and gas-guide tube 30, when
When the sum of air pressure in the pressure and oil tank of 40 fluid column of Seal Oil between separating tube 20 and gas-guide tube 30 is equal to atmospheric pressure, sealing
Oil 40 stops flowing；When the pressure in oil tank continues the Opening pressure for being decreased to deadweight safety valve, storage cylinder 10 and separating tube
Liquid level between 20 is less than the bottom of separating tube 20, the liquid between separating tube 20 and gas-guide tube 30 more than 20 bottom of separating tube
Face continues to rise, and with the rising of liquid level, the amount that Seal Oil 40 is attached on gas-guide tube 30 and separating tube 20 gradually increases, so that
Seal Oil 40 more than 20 bottom of separating tube gradually decreases, and then loses the sealing process to gas, and air is by gas-guide tube
30 enter in oil tank, so that the air pressure in oil tank is increased to below the Opening pressure of deadweight safety valve.In the above process, work as oil
After below air pressure adjustment to the Opening pressure of deadweight safety valve in tank, separating tube 20 and storage cylinder 10 are attached to, or separate
Seal Oil 40 on cylinder 20 and gas-guide tube 30 is gradually flowed into the bottom of storage cylinder 10 so that the liquid level rise in storage cylinder 10,
Realize the closing of deadweight safety valve.
Deadweight safety valve provided in this embodiment, the lower end of gas-guide tube 30 are used to connect with the top of oil tank；Seal Oil 40
It is filled in storage cylinder 10, the liquid level of Seal Oil 40 is higher than the lower end of separating tube 20；Condensing unit is arranged on the upper of gas-guide tube 30
Side, the vapor for making to be escaped by gas-guide tube 30 liquefies, and flows back into gas-guide tube 30；Avoid what is escaped by gas-guide tube 30
Vapor in gas liquefies in the inner wall of separating tube 20, and the water after liquefaction may not flow into Seal Oil 40, storage cylinder
The volume of 10 interior sealing oil 40 will not change, and the Opening pressure of deadweight safety valve is accurate.
With continued reference to Fig. 2.Specifically, condensing unit includes condensation net 301, and condensation net 301 is located at the upper of gas-guide tube 30
End.The contact area with gas is increased, enhances the liquefaction effect of vapor.Preferably, condensing net 301 can include intersecting
The steel wire of setting, after forming water droplet on steel wire so as to vapor, drops into gas-guide tube 30, and then be back in oil tank.
Preferably, the middle part of net 301 is condensed to the inner recess of gas-guide tube 30.Formed for making to liquefy on condensation net 301
Water converged under gravity to concave bottom, and then drop into gas-guide tube 30；In order to avoid the water at 301 edge of condensation net
It is flowed into along the outer wall of gas-guide tube 30 in Seal Oil 40.
With continued reference to Fig. 2.Specifically, condensing unit further includes diversion pipe 302, the area of section of 302 first end of diversion pipe
More than the area of section of 302 second end of diversion pipe；The second end of diversion pipe 302 is connected with the upper end of gas-guide tube 30, diversion pipe 302
First end with condensation net 301 be connected.The area of condensation net 301 is increased, improves the liquefaction effect of vapor；It is preferably cold
The edge of solidifying net 301 is connected with the inner wall of diversion pipe 302, in case the water at 301 edge of condensation net enters along the outer wall of diversion pipe 302
Into Seal Oil 40.
With continued reference to Fig. 2.Deadweight safety valve provided in this embodiment further includes bend pipe 303, the axis of bend pipe 303 and air guide
The axis of pipe 30 is in a default angle；The bottom of gas-guide tube 30 is connected with one end of bend pipe 303, and the other end of bend pipe 303 is used for
Connected with oil tank.The upper end that the gas sprayed by roof flows directly into gas-guide tube 30 is avoided, causes the liquefaction of gas to be imitated
Fruit is bad.Preferably, default angle is the not conllinear any angle of axis of axis and the bend pipe 303 of gas-guide tube 30.
Preferably, the area of section of bend pipe 303 towards 30 one end of gas-guide tube is more than section of the bend pipe 303 towards oil tank one end
Area.During gas is flowed to gas-guide tube 30, the area of section of bend pipe 303 gradually increases, and thereby reduces gas stream
Go out flow velocity during bend pipe 303, and then enhance the liquefaction effect of gas.
With continued reference to Fig. 2.Deadweight safety valve provided in this embodiment further includes cover board 201, and cover board 201 is located at storage cylinder
10 top.Avoid rainwater and debris to be entered in storage cylinder 10 by the top of storage cylinder 10, cause the dirt to Seal Oil 40
Dye.Preferably, the upper end that cover board 201 can be by welding with separating tube 20 is connected, or cover board 201 and separating tube 20
It is integrally formed.
With continued reference to Fig. 2.Preferably, the side of cover board 201 towards storage cylinder 10 has been formed down annular projection 202, ring
Shape protrusion 202 is located at the outside of storage cylinder 10, the bottom of annular projection 202 compared with storage cylinder 10 top closer to bottom plate.Prevent
Dust is entered in storage cylinder 10 by the gap between 10 upper end of cover board 201 and storage cylinder, and Seal Oil 40 is polluted.
Preferably, on the lateral wall of storage cylinder 10 formed with annular flange 101, formed with holding ring in annular flange 101
The annular recess of shape protrusion 202, is equipped with third space between annular projection 202 and annular recess.Strengthen cover board 201 and storage
Sealing performance between cylinder 10, further prevents dust from entering storage by the gap between 10 upper end of cover board 201 and storage cylinder
In cylinder 10.
A kind of oil tank, tank body and deadweight safety valve as described above, deadweight safety valve are also provided in other embodiments
It is arranged on the top of oil tank.Specifically, tank body such as can be in the form of a column, is spherical at the regular shape, can also be in other irregular shapes
Shape, the present embodiment is not limited the shape of tank body, as long as the closed container of oil can be stored；For the ease of retouching
State, below by taking columned tank body as an example, the side of cylinder is connected with ground, and at this time, deadweight safety valve is arranged on the side of cylinder
Face and the position farthest apart from ground；Or the end face of cylinder is connected with ground, deadweight safety valve is arranged on cylinder at this time
On other end.Being set as above can be entered in deadweight safety valve to avoid the oil in oil tank by gas-guide tube 30.
Wherein, deadweight safety valve includes：Gas-guide tube 30, separating tube 20, storage cylinder 10, Seal Oil 40 and condensing unit；
The lower end of storage cylinder 10 is provided with bottom plate, the upper end closed of separating tube 20, separating tube 20 be threaded through in storage cylinder 10 and bottom plate with
At a distance of pre-determined distance between the lower end of separating tube 20, have between the side wall of separating tube 20 and the side wall of storage cylinder 10 between first
Gap；The upper end of gas-guide tube 30 is through bottom plate and is contained in separating tube 20, and the upper end of gas-guide tube 30 is located at 20 bottom of separating tube
Top, has the second gap between the side wall of separating tube 20 and the side wall of gas-guide tube 30；The lower end of gas-guide tube 30 is used for and oil tank
Top connection；Seal Oil 40 is filled in storage cylinder 10, and the liquid level of Seal Oil 40 is higher than the lower end of separating tube 20；Condensing unit
The top of gas-guide tube 30 is arranged on, the vapor for making to be escaped by gas-guide tube 30 liquefies, and flows back into gas-guide tube 30.
Specifically, the section of storage cylinder 10 can the regular shape such as rounded, triangle rectangle, or do not advised in others
Then shape, the present embodiment do not limit the cross sectional shape of storage barrel.The upper end of storage cylinder 10 has one to be open, under storage cylinder 10
First through hole is offered on the bottom plate at end, gas-guide tube 30 is threaded through in first through hole, and the upper end of gas-guide tube 30 is contained in storage
In cylinder 10.The present embodiment does not limit the connection mode between gas-guide tube 30 and first through hole, as long as Seal Oil can be prevented
40 overflow between gas-guide tube 30 and first through hole side wall；Such as：The side wall of gas-guide tube 30 and the side wall of first through hole it
Between can connect by welding, alternatively, set sealing ring between the side wall of gas-guide tube 30 and the side wall of first through hole,
To ensure the leakproofness between gas-guide tube 30 and first through hole side wall；In addition, it can be formed on the side wall of gas-guide tube 30 outside first
Screw thread, forms the first internal thread coordinated with the first external screw thread on the side wall of first through hole, passes through the first internal thread and first
External screw thread coordinates the connection realized between gas-guide tube 30 and first through hole side wall.
Specifically, the upper end of separating tube 20 can be sealed by any device that gas can be prevented to be escaped by 20 upper end of separating tube
Close, the present embodiment is not restricted this；Such as：The upper end of separating tube 20 is welded with sealing plate, by sealing plate by separating tube 20
Upper end closed, or side wall of the sealing plate with separating tube 20 by way of casting be integrally formed；It can in addition contain separate
For the inner wall of cylinder 20 formed with the second internal thread, stud screws in the second internal thread the closing realized to 20 top of separating tube.
The side wall of separating tube 20 is located between 30 outer wall of gas-guide tube and storage top tank structure, and separating tube 20 can be with storage cylinder
10th, gas-guide tube 30 or oil tank connection, so as to which separating tube 20 is arranged in storage cylinder 10 so that the bottom and bottom of separating tube 20
Apart there is the first gap between pre-determined distance and the side wall of separating tube 20 and the side wall of storage cylinder 10 between plate, separating tube 20
There is the second gap between the side wall of side wall and gas-guide tube 30；The present embodiment is not restricted this；Such as：In separating tube 20 and storage
Connecting pole is provided between cylinder 10, the both ends of connecting pole can connect with separating tube 20 and storage cylinder 10 by welding respectively
Connect, can also be connected respectively with separating tube 20 and storage cylinder 10 by bolted connection；In addition connecting pole is arranged on air guide
Between pipe 30 and separating tube 20, the both ends of connecting pole can connect with gas-guide tube 30 and separating tube 20 by welding respectively
Connect, can also be connected respectively with gas-guide tube 30 and separating tube 20 by bolted connection；In addition on the top of separating tube 20
There can be an installation frame, installation frame is erected at the top of oil tank, to realize the connection between separating tube 20 and oil tank.
Preferably, pre-determined distance is ensures that Seal Oil 40 can be by any distance that is flowed through between separating tube 20 and bottom plate；
First gap and the second gap can be that can ensure that Seal Oil 40 between separating tube 20 and storage cylinder 10 and can separate
Any distance flowed between cylinder 20 and gas-guide tube 30, the present embodiment are without limitation.
Preferably, by adjusting the size of pre-determined distance, thus it is possible to vary the liquid level of Seal Oil 40 and 20 bottom of separating tube it
Between distance, to adjust the Opening pressure of deadweight safety valve；Or the amount of 10 interior sealing oil 40 of storage cylinder is filled in by adjusting,
The distance between liquid level and 20 bottom of separating tube of Seal Oil 40 can be changed, to realize the tune to hydraulic safe valve opening pressure
Section.It is further preferred that Seal Oil 40 can be that any boiling point is high and the liquid at fusing point bottom, so as not to Seal Oil 40 at room temperature because
Evaporate too fast, cause Seal Oil 40 to reduce, the Opening pressure of deadweight safety valve reduces, or Seal Oil 40 liquid level less than separating
The bottom of cylinder 20 so that deadweight safety valve is constantly in the state of opening；Meanwhile Seal Oil 40 will not be low because of temperature in winter
In fusing point so that Seal Oil 40 solidifies, and causes deadweight safety valve to open.Preferably, Seal Oil 40 can include but unlimited
In light diesel fuel or transformer oil.
Specifically, the top of oil tank can offer a gas port, and the lower end of gas-guide tube 30 can be by welding
Connected with gas port；Alternatively, the lower end of gas-guide tube 30 has the first mounting flange, the outside of gas port is convex with the second installation
Connected before edge, the first mounting flange and the second mounting flange by fastener；Preferably, fastener includes but not limited to spiral shell
Bolt.
Specifically, condensing unit can be that will can arbitrarily be liquefied by the vapor in 30 escaping gas of gas-guide tube, and
The device for making the water that liquefaction is formed flow into gas-guide tube 30；Such as：Condensing unit can include a condensation cap, condense the middle part of cap
A tapered passage is offered, the area of section of passage lower end is more than the area of section of passage upper end, and the lower end of passage is with leading
The upper end connection of tracheae 30；Condensate film is provided with the madial wall of passage；So as to the gas in passage is flowed into by gas-guide tube 30
In vapor liquefy on condensate film, and be dropped into from condensate film in gas-guide tube 30.Preferably, can be in the inner wall of passage
And/or condenser pipe is set on condensate film, condenser pipe is connected with exterior refrigeration plant, with by refrigeration plant that temperature is relatively low
Refrigerating fluid inputs condenser pipe, cools down to the inner wall and/or condensate film of passage, to strengthen the liquefaction effect of vapor.
The course of work of deadweight safety valve provided in this embodiment is：When the gas pressure rise in oil tank, separating tube
Gas pressure intensity increase in 20, so that Seal Oil 40 between separating tube 20 and gas-guide tube 30 is to separating tube 20 and storage cylinder
Flowed between 10, and then raise the liquid level of the Seal Oil 40 between separating tube 20 and storage cylinder 10, when the gas pressure in oil tank
When power is equal to the sum of head of liquid of Seal Oil 40 between external atmosphere pressure and separating tube 20 and storage cylinder 10, Seal Oil 40 is stopped
Fluid stopping is moved；When the pressure in oil tank continues to increase to the Opening pressure higher than deadweight safety valve, separating tube 20 and gas-guide tube 30
Between liquid level be less than the bottom of separating tube 20, the sealing between separating tube 20 and storage cylinder 10 more than 20 bottom of separating tube
Oil 40 continues up flowing, and with the flowing of Seal Oil 40, Seal Oil 40 more than 20 bottom of separating tube is attached to separating tube 20
Gradually increase with the amount on storage cylinder 10, cause Seal Oil 40 more than 20 bottom of separating tube to gradually decrease, lose to gas
Sealing process；Gas is escaped by the top of storage cylinder 10, and the gas pressure in oil tank is reduced to the Opening pressure of deadweight safety valve
Below.When the air pressure in oil tank decreases below atmospheric pressure, Seal Oil 40 is flowed between separating tube 20 and gas-guide tube 30, when
When the sum of air pressure in the pressure and oil tank of 40 fluid column of Seal Oil between separating tube 20 and gas-guide tube 30 is equal to atmospheric pressure, sealing
Oil 40 stops flowing；When the pressure in oil tank continues the Opening pressure for being decreased to deadweight safety valve, storage cylinder 10 and separating tube
Liquid level between 20 is less than the bottom of separating tube 20, the liquid between separating tube 20 and gas-guide tube 30 more than 20 bottom of separating tube
Face continues to rise, and with the rising of liquid level, the amount that Seal Oil 40 is attached on gas-guide tube 30 and separating tube 20 gradually increases, so that
Seal Oil 40 more than 20 bottom of separating tube gradually decreases, and then loses the sealing process to gas, and air is by gas-guide tube
30 enter in oil tank, so that the air pressure in oil tank is increased to below the Opening pressure of deadweight safety valve.In the above process, work as oil
After below air pressure adjustment to the Opening pressure of deadweight safety valve in tank, separating tube 20 and storage cylinder 10 are attached to, or separate
Seal Oil 40 on cylinder 20 and gas-guide tube 30 is gradually flowed into the bottom of storage cylinder 10 so that the liquid level rise in storage cylinder 10,
Realize the closing of deadweight safety valve.
Deadweight safety valve provided in this embodiment, the lower end of gas-guide tube 30 are used to connect with the top of oil tank；Seal Oil 40
It is filled in storage cylinder 10, the liquid level of Seal Oil 40 is higher than the lower end of separating tube 20；Condensing unit is arranged on the upper of gas-guide tube 30
Side, the vapor for making to be escaped by gas-guide tube 30 liquefies, and flows back into gas-guide tube 30；Avoid what is escaped by gas-guide tube 30
Vapor in gas liquefies in the inner wall of separating tube 20, and the water after liquefaction may not flow into Seal Oil 40, storage cylinder
The volume of 10 interior sealing oil 40 will not change, and the Opening pressure of deadweight safety valve is accurate.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify the technical solution described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical solution of type.
Claims (10)
- A kind of 1. deadweight safety valve, it is characterised in that including：Gas-guide tube, separating tube, storage cylinder, Seal Oil and condensing unit； The lower end of the storage cylinder is provided with bottom plate, the upper end closed of the separating tube, the separating tube is threaded through in the storage cylinder, And at a distance of pre-determined distance, the side of the side wall of the separating tube and the storage cylinder between the lower end of the bottom plate and the separating tube There is the first gap between wall；The upper end of the gas-guide tube is through the bottom plate and is contained in the separating tube, the air guide The upper end of pipe is located at the top of the separating tube bottom, has the between the side wall of the separating tube and the side wall of the gas-guide tube Two gaps；The lower end of the gas-guide tube is used to connect with the top of oil tank；The Seal Oil is filled in the storage cylinder, described The liquid level of Seal Oil is higher than the lower end of the separating tube；The condensing unit is arranged on the top of the gas-guide tube, for make by The vapor liquefaction of the gas-guide tube effusion, and flow back into the gas-guide tube.
- 2. deadweight safety valve according to claim 1, it is characterised in that the condensing unit includes condensation net, described cold Solidifying guard is located at the upper end of the gas-guide tube.
- 3. deadweight safety valve according to claim 2, it is characterised in that the middle part of the condensation net is to the gas-guide tube Inner recess.
- 4. deadweight safety valve according to claim 2, it is characterised in that the condensing unit further includes diversion pipe, described The area of section of diversion pipe first end is more than the area of section of the diversion pipe second end；The second end of the diversion pipe with it is described The upper end connection of gas-guide tube, the first end of the diversion pipe and the condensation net connection.
- 5. according to claim 1-4 any one of them deadweight safety valves, it is characterised in that bend pipe is further included, the bend pipe The axis of axis and the gas-guide tube presets angle in one；The bottom of the gas-guide tube is connected with one end of the bend pipe, described The other end of bend pipe is used to connect with the oil tank.
- 6. deadweight safety valve according to claim 5, it is characterised in that the bend pipe is cut towards described gas-guide tube one end Face area is more than area of section of the bend pipe towards described oil tank one end.
- 7. deadweight safety valve according to claim 1, it is characterised in that further include cover board, the cover board is located at described The top of storage cylinder.
- 8. deadweight safety valve according to claim 7, it is characterised in that the cover board is one lateral towards the storage cylinder Under formed with annular projection, the annular projection is located at the outside of the storage cylinder, the bottom storage of the annular projection The top of cylinder is deposited closer to the bottom plate.
- 9. deadweight safety valve according to claim 8, it is characterised in that formed with annular on the lateral wall of the storage cylinder Flange, formed with the annular recess for housing the annular projection in the annular flange, the annular projection and the ring-type are recessed Third space is equipped between groove.
- A kind of 10. oil tank, it is characterised in that including：Tank body and claim 1-9 any one of them deadweight safety valves, institute State the top that deadweight safety valve is arranged on the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721225569.3U CN207333858U (en) | 2017-09-22 | 2017-09-22 | Deadweight safety valve and oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721225569.3U CN207333858U (en) | 2017-09-22 | 2017-09-22 | Deadweight safety valve and oil tank |
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| Publication Number | Publication Date |
|---|---|
| CN207333858U true CN207333858U (en) | 2018-05-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721225569.3U Active CN207333858U (en) | 2017-09-22 | 2017-09-22 | Deadweight safety valve and oil tank |
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| CN (1) | CN207333858U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368075A (en) * | 2018-11-23 | 2019-02-22 | 江苏朸健生命科技发展有限公司 | Tank respirator |
| CN112013143A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
| CN112780813A (en) * | 2019-11-01 | 2021-05-11 | 约克广州空调冷冻设备有限公司 | Safety valve and flow guide cover |
| CN113120451A (en) * | 2021-04-06 | 2021-07-16 | 辽宁石油化工大学 | Liquid sealing pressure relief manhole |
-
2017
- 2017-09-22 CN CN201721225569.3U patent/CN207333858U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368075A (en) * | 2018-11-23 | 2019-02-22 | 江苏朸健生命科技发展有限公司 | Tank respirator |
| CN109368075B (en) * | 2018-11-23 | 2024-03-29 | 江苏菌钥生命科技发展有限公司 | Respirator for tank |
| CN112013143A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
| CN112013143B (en) * | 2019-05-30 | 2022-05-24 | 中国石油化工股份有限公司 | Fire-retardant type breather valve for stratum water storage tank |
| CN112780813A (en) * | 2019-11-01 | 2021-05-11 | 约克广州空调冷冻设备有限公司 | Safety valve and flow guide cover |
| CN113120451A (en) * | 2021-04-06 | 2021-07-16 | 辽宁石油化工大学 | Liquid sealing pressure relief manhole |
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