CN113294542A - Sealed cabin inflation sealing valve in deep water environment - Google Patents
Sealed cabin inflation sealing valve in deep water environment Download PDFInfo
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- CN113294542A CN113294542A CN202110502446.4A CN202110502446A CN113294542A CN 113294542 A CN113294542 A CN 113294542A CN 202110502446 A CN202110502446 A CN 202110502446A CN 113294542 A CN113294542 A CN 113294542A
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- air inlet
- air
- valve
- spring
- valve plug
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/265—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a sleeve sliding in the direction of the flow line
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The invention relates to the technical field of inflation valves, in particular to a sealed cabin inflation sealing valve in a deepwater environment, which comprises: the cabin comprises a shell, wherein one end of the shell is provided with a connecting part connected with a cabin body, the connecting part is provided with a bolt hole, the other end of the shell is provided with an arc-shaped cover part, and a connecting sleeve is arranged in the middle of the arc-shaped cover part; the gas storage cover is fixed inside the shell; the air storage cover is arranged in the valve body, the space between the air storage cover and the shell is used for normally feeding air during inflation, when the pressure fluctuation in the cabin body is increased, the pressure relief valve plug in the middle of the air storage cover can be pushed open, high pressure enters the air storage chamber, stored air can be discharged into the cabin body again through the one-way valve when the pressure in the cabin body is recovered, the balance of the pressure in the cabin body is kept, the effects of inflation, overpressure protection and air leakage are achieved through one valve, the number of openings in the cabin body can be reduced, and the strength of the cabin body is improved.
Description
Technical Field
The invention relates to the technical field of inflation valves, in particular to a sealed cabin inflation sealing valve in a deepwater environment.
Background
The sealing maintenance mode of the sealing valve for inflating and deflating the general sealed cabin mainly comprises a squeezing friction seal and a sliding friction seal. Although the sealing structures have different forms, the effect of isolation and sealing is achieved by means of the fact that the friction contact pressure of the extrusion contact surface is greater than the real-time pressure in the sealing cabin body. The special spring with certain length and rigidity is used for reversely extruding and pushing the sealing ring to contact with the inside of the sealing valve shell to form a pair of friction contact pairs to realize local pressure increase, so that the gas sealing operation inside the sealing cabin body is realized. The existing sealing structure of the inflating and deflating sealing valve of the sealing cabin body mainly comprises an external sealing ring for pressing contact sealing and a steel ball conical surface for friction sealing, and the two sealing modes can realize a certain degree of air sealing effect, but have complex operation and cannot realize quick direct inflation and overpressure protection of air; and with the increase of the use times, the local contact surface can generate scratches or pitting corrosion, and under the relatively high internal pressure impact, the local contact surface can become a main leakage point and spread to the periphery over time, so that the requirement of a stable sealing environment for long-time navigation across the sea area can not be met.
In this respect, the invention with application number CN201711330145.8 discloses an inflation sealing valve for a sealed cabin, which can rapidly and directly inflate an air body for the sealed cabin and can realize instant sealing after inflation is stopped, and a deflation sealing valve has internal overpressure protection capability, but the scheme requires an inflation valve and a deflation valve to realize inflation and overpressure protection, and the addition of one valve not only increases the leakage points of the cabin body of the sealed cabin, but also increases the complexity of the manufacturing and assembling process of the cabin body, so that a sealing valve capable of realizing inflation and overpressure protection is required.
Disclosure of Invention
The invention aims to provide a sealing cabin inflation sealing valve in a deepwater environment, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a sealed cabin inflation sealing valve in a deepwater environment comprises:
the cabin comprises a shell, wherein one end of the shell is provided with a connecting part connected with a cabin body, the connecting part is provided with a bolt hole, the other end of the shell is provided with an arc-shaped cover part, and a connecting sleeve is arranged in the middle of the arc-shaped cover part;
the gas storage cover is fixed inside the shell, a spring chamber is arranged in the middle of the gas storage cover, an air inlet channel is formed in an interlayer space between the gas storage cover and the shell, and the gas storage chamber is arranged inside the gas storage cover;
valve plug and pressure release valve plug, the equal swing joint of valve plug and pressure release valve plug is in the spring chamber, just the valve plug is used for the shutoff admit air clearance between inlet channel and the adapter sleeve, the pressure release valve plug is used for the shutoff the spring chamber with valve opening between the connecting portion.
One end of the connecting part is arranged on the cabin body and is fixed in the bolt hole by using bolt connection, the wall surface of the connecting part with the cabin body is coated with soft silicone grease for sealing, after the connection between the shell and the cabin body is well carried out, the arc cover part leaks to the outside of the cabin body, the hemispherical shape of the arc cover part has higher pressure resistance, on the other hand, the inner part of the arc cover part has larger accommodating space, the shape of the gas storage cover is a ball-like structure, a gap is arranged between the outer wall of the gas storage cover and the inner wall of the shell, the gap forms a gas inlet channel, gas entering from the connecting sleeve on the shell during inflation enters the cabin body from the gas inlet channel, a columnar spring chamber is formed at the middle position of the gas storage cover, the upper end of the gas storage cover has a larger opening, and the lower part of the gas storage cover has a smaller opening, the valve plug is movably connected in the spring chamber, when the valve plug is attached to the connecting sleeve and the wall surface of the shell, air inlet channel is sealed, when the wall separation of valve plug and adapter sleeve and casing, air inlet channel is opened, move down of valve plug lean on the adapter sleeve extrusion in the adapter sleeve, only when the gas filled state promptly, air inlet channel just is opened, when guaranteeing the gas filled state, gas can not enter into the gas receiver, utilize the relief valve plug to seal and block up the valve opening, make gas filled enter into the cabin body along the chamber of admitting air, and can't get into in the gas receiver, after inflating and finishing, when producing the high pressure in the cabin body, the pressure release valve plug just opens, gas enters into the spring chamber earlier, then in the gas receiver again, because the gas receiver is type sphere structure, its inside storage space is great.
Preferably, the gas storage cover through with casing fixed connection, the inside of casing, be located the inboard of connecting portion is equipped with the chamber of admitting air, the chamber of admitting air extend to the inboard, on seted up with inlet channel intercommunication, the spring chamber with admit air and pass through the valve opening intercommunication between the chamber, the pressure release valve plug passes through pressure release spring and seals the valve opening, pressure release spring's the other end is connected on the valve plug, still be equipped with first spring in the spring chamber, first spring one end support and lean on the bottom of valve plug, the other end with the gas storage cover is connected.
The connecting ring is an annular connecting part, a communicating groove is formed in the side wall of the connecting ring, the air inlet channel can be communicated with the air inlet cavity, and during inflation, the injected air enters the air inlet cavity from the air inlet channel along the communicating groove; the spring chamber is relative confined space, it and reservoir intercommunication, play the effect of transition, mainly be used for holding pressure release spring and first spring, first spring is used for exerting pressure for the valve plug, make the valve plug tightly support and lean on the inner wall at arc cover portion, make inlet channel seal, pressure release spring is used for extrudeing the pressure release valve plug, pressure release spring can change different elasticity as required the maximum value of pressure release, when the internal overvoltage that appears of cabin, can push open the pressure release valve plug, make gaseous storage in entering into spring chamber and the reservoir, alleviate the excessive pressure and strike, after the excessive pressure disappears, pressure in the reservoir is greater than the pressure in the inlet channel, gaseous reentrant the cabin body in from the check valve, realize air pressure balance.
Preferably, a through hole is formed between the air storage chamber and the spring chamber, so that the spring chamber and the air storage chamber are communicated with each other, a one-way valve connected with the air inlet channel is arranged in the air storage chamber, and when the pressure of the air storage chamber is greater than the pressure in the air inlet channel, the one-way valve is opened.
Since overpressure may be generated due to sudden change of environment and internal negative pressure may be generated if gas is discharged without being supplemented, gas enters the gas storage chamber from the spring chamber to be temporarily stored when the pressure is high, and when the pressure in the cabin body is recovered, the pressure in the gas storage chamber is higher than the pressure in the gas inlet channel, so that the gas storage chamber is inflated into the cabin body again to balance the pressure.
Preferably, the outer wall of the gas storage cover is spherical, a spherical accommodating space is arranged in the shell, and the volume of the gas storage chamber is at least one half of the spherical accommodating space in the shell.
In order to increase the air storage capacity of the air storage cover and achieve better buffering and balancing effects, the volume of the air storage chamber can be set as large as possible on the premise of ensuring the structural strength and the inflation speed, the volume of the air storage chamber can be increased by reducing the diameter of the spring chamber or reducing the gap width of the air inlet channel, and the air inlet channel is annularly distributed, so that the timely width is small, and the air inlet channel still has larger ventilation capacity.
Preferably, the inside threaded connection of adapter sleeve has the closing sleeve, the up end of valve plug is equipped with the contact terminal surface, the bottom of closing sleeve be equipped with the contact plate of contact terminal surface laminating, be equipped with on the closing sleeve and extend from its up end the air inlet of contact plate department, the outside of air inlet is equipped with and extends to the air inlet duct of closing sleeve lateral wall.
The sealing sleeve is mainly used for being matched with a gas conveying pipe to play a role in sealing and connecting, when the sealing sleeve is not in an inflated state, the sealing sleeve is sleeved on the inner wall of the connecting sleeve, the gas inlet groove is located on the inner side of the side wall rubber ring to form a sealed state, and water pressure cannot act on the valve plug to guarantee sealing reliability.
Preferably, the valve plug with when the arc cover portion separates, the valve plug with form the air intake gap between the arc cover portion, the inlet port with air intake gap intercommunication, the outer wall of valve plug and correspond the position department the inner wall of arc cover portion all seted up annular groove, be equipped with first sealing washer in the annular groove.
When needs are aerifyd, the gas-supply pipe closes with the closing sleeve, and make round pin post and pinhole peg graft together, then rotate the gas-supply pipe, in the pivoted, the gas-supply pipe screw in to the adapter sleeve inner wall, the closing sleeve moves down, the valve plug is because the extrusion of closing sleeve is also downstream, the air inlet gap between arc cover portion and the valve plug is opened, the air inlet duct also is in the air inlet gap simultaneously, gas in the gas-supply pipe can be obeyed the air inlet, the air inlet duct enters into air inlet gap and inlet channel, the in-process of closing is opposite with the inflation process, back the screw-out can with the gas-supply pipe, in-process of screwing out, the air inlet duct is closed gradually, the valve plug pastes tightly with arc cover portion gradually, form the sealed of valve.
Preferably, the wall surface of the annular groove on the arc-shaped cover part is at least three annular planes connected end to end, the wall surface of the annular groove on the valve plug is an annular arc surface attached to the first sealing ring, and the first sealing ring is clamped and connected in the annular arc surface.
In order to ensure the sealing reliability of the first sealing ring, the first sealing ring is clamped by the annular groove with one cambered surface for positioning, and the first sealing ring can be deformed by the annular groove with the inclined plane, so that the sealing reliability after the pressing is ensured.
Preferably, the inner wall of adapter sleeve still is equipped with and is located the lateral wall rubber circle in the air inlet duct outside, the height that highly is greater than of lateral wall rubber circle the height of air inlet duct, the bottom of adapter sleeve be equipped with the second sealing washer of valve plug laminating, still detachable is connected with the gas-supply pipe on the adapter sleeve.
In order to increase the sealing performance between the air inlet groove and the connecting sleeve, the periphery of the air inlet groove is sealed by the side wall rubber ring, and the integral sealing effect of the sealing sleeve is ensured.
Preferably, the below of gas-supply pipe is equipped with the round pin post, the up end of closing the cover be equipped with round pin post complex pinhole, the outer wall of closing the cover and gas-supply pipe all be equipped with adapter sleeve complex threaded connection portion.
Mainly when the air pipe is screwed into the connecting sleeve, the connecting function can be achieved, meanwhile, the connecting channel between the air pipe and the air inlet channel is opened, and when the air pipe is withdrawn, the connecting channel between the air pipe and the air inlet channel is closed, so that the air pipe is more convenient and quicker in the inflation process.
Preferably, the check valve comprises a plug plate, a guide rod, a pressing plate and a third spring, the plug plate is fixedly connected with the pressing plate through the guide rod, the third spring is arranged between the pressing plate and the gas storage cover, and the guide rod is movably connected in a backflow hole in the gas storage cover.
When the pressure outside the backflow hole is high (the pressure inside the air inlet channel), the plug plate is tightly attached to the outer wall of the air storage cover, the check valve is in a closed state at the moment, and when the pressure outside the backflow hole is low, the plug plate is under the pressure of the air pressure inside the backflow hole, so that the plug plate is opened, and the check valve is in a conducting state.
Compared with the prior art, the invention has the beneficial effects that:
the air storage cover is arranged in the valve body, the space between the air storage cover and the shell is used for normal air inlet during inflation, when the pressure fluctuation in the cabin body is increased, the pressure relief valve plug in the middle of the air storage cover can be pushed open, high pressure enters the air storage chamber, stored air can be discharged into the cabin body again through the one-way valve when the pressure in the cabin body is recovered, the balance of the pressure in the cabin body is kept, the effects of inflation, overpressure protection and air leakage are achieved through the one-way valve, the number of openings in the cabin body can be reduced, and the strength of the cabin body is improved.
Drawings
FIG. 1 is a schematic structural diagram of a sealing cabin inflation sealing valve in a deepwater environment;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural diagram of a sealed cabin air-seal valve connected with a gas pipe in a deepwater environment according to the invention;
FIG. 4 is a schematic view of the structure at B in FIG. 3;
FIG. 5 is a schematic view of the structure at C in FIG. 3;
fig. 6 is a schematic structural diagram of a sealing sleeve in a sealed cabin air-tight valve door in a deepwater environment.
Reference numbers in the figures: 1. a housing; 101. an air intake passage; 102. an air inlet cavity; 11. an arc-shaped cover part; 111. an annular groove; 112. an intake gap; 12. a connecting portion; 121. bolt holes; 13. connecting sleeves; 131. a sidewall rubber ring; 132. a second seal ring; 2. a gas storage cover; 201. a spring chamber; 202. an air storage chamber; 203. a through hole; 204. a valve bore; 21. a connecting ring; 211. a communicating groove; 3. a valve plug; 31. a contact end face; 32. a first seal ring; 33. a first spring; 4. a pressure relief valve plug; 41. a pressure relief spring; 5. a sealing sleeve; 501. an air inlet; 502. an air inlet groove; 503. a pin hole; 51. a threaded connection; 52. a contact plate; 6. a gas delivery pipe; 61. a pin; 7. a one-way valve; 701. a return orifice; 71. a plug plate; 72. a guide bar; 73. pressing a plate; 74. and a third spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1 to 6, the hermetic sealing valve for a sealed cabin in a deep water environment includes:
the cabin comprises a shell 1, wherein one end of the shell 1 is provided with a connecting part 12 connected with a cabin body, the connecting part 12 is provided with a bolt hole 121, the other end of the shell 1 is provided with an arc-shaped cover part 11, and a connecting sleeve 13 is arranged in the middle of the arc-shaped cover part 11;
the gas storage cover 2 is fixed inside the shell 1, a spring chamber 201 is arranged in the middle of the gas storage cover 2, an air inlet channel 101 is formed in an interlayer space between the gas storage cover 2 and the shell 1, and a gas storage chamber 202 is arranged inside the gas storage cover 2;
One end of the connecting part 12 is installed on the cabin body and fixed in the bolt hole 121 by using bolt connection, the wall surface of the connecting part with the cabin body is coated with soft silicone grease for sealing, after the connection between the shell 1 and the cabin body is completed, the arc cover part 11 leaks out of the cabin body, the hemispherical shape has higher pressure resistance, on the other hand, the inner part of the arc cover part is enabled to have a larger accommodating space, the shape of the gas storage cover 2 is a ball-like structure, a gap is arranged between the outer wall of the gas storage cover and the inner wall of the shell 1, the gap forms a gas inlet channel 101, gas entering from the connecting sleeve 13 on the shell 1 during inflation enters the cabin body from the gas inlet channel 101, a column-shaped spring chamber 201 is formed at the middle position of the gas storage cover 2, the upper end has a larger opening, the lower part has a smaller opening, the valve plug 3 is movably connected in the spring chamber 201, when the valve plug 3 is attached to the wall surfaces of the connecting sleeve 13 and the housing 1, the air inlet channel 101 is closed, when the valve plug 3 is separated from the wall surfaces of the connecting sleeve 13 and the housing 1, the air inlet channel 101 is opened, the valve plug 3 moves downwards to be extruded by the sealing sleeve 5 in the connecting sleeve 13, namely, only in an inflation state, the air inlet channel 101 is opened, in order to ensure the inflation state, air cannot enter the air storage chamber 202, the valve hole 204 is sealed by the pressure relief valve plug 4, so that the inflated air enters the cabin body along the air inlet cavity 102 and cannot enter the air storage chamber 202, after the inflation is finished, when an excessive high pressure is generated in the cabin body, the pressure relief valve plug 4 is opened, the air firstly enters the spring chamber 201 and then enters the air storage chamber 202, and because the air storage cover 2 is of a sphere-like structure, the storage space inside the air storage chamber is large.
Specifically, as shown in fig. 1, the gas storage cover 2 is fixedly connected with the housing 1 through a connection ring 21, the inside of the housing 1, the inner side of the connection portion 12 is provided with a gas inlet cavity 102, the gas inlet cavity 102 extends to the inner side of the connection ring 21, the connection ring 21 is provided with a communication groove 211 communicated with the gas inlet channel 101, the spring chamber 201 is communicated with the gas inlet cavity 102 through a valve hole 204, the pressure relief valve plug 4 seals the valve hole 204 through a pressure relief spring 41, the other end of the pressure relief spring 41 is connected to the valve plug 3, the spring chamber 201 is further provided with a first spring 33, one end of the first spring 33 is abutted against the bottom of the valve plug 3, and the other end of the first spring 33 is connected with the gas storage cover 2.
The connecting ring 21 is an annular connecting part, and a communicating groove 211 is formed in the side wall of the connecting ring, so that the air inlet channel 101 can be communicated with the air inlet cavity 102, and during inflation, the injected air enters the air inlet cavity 102 from the air inlet channel 101 along the communicating groove 211; the spring chamber 201 is a relatively closed space, which is communicated with the air storage chamber 202, and plays a transitional role, mainly used for containing the pressure relief spring 41 and the first spring 33, the first spring 33 is used for applying pressure to the valve plug 3, so that the valve plug 3 tightly abuts against the inner wall of the arc-shaped cover part 11, so that the air inlet channel 101 is closed, the pressure relief spring 41 is used for extruding the pressure relief valve plug 4, the pressure relief spring 41 can replace different elasticity according to the maximum value of required pressure relief, when overpressure occurs in the cabin body, the pressure relief valve plug 4 can be pushed open, so that air enters the spring chamber 201 and the air storage chamber 202 to be stored, so as to relieve overpressure impact, after the overpressure disappears, the pressure in the air storage chamber 202 is greater than the pressure in the air inlet channel 101, the air reenters the cabin body from the check valve 7, and realize air pressure balance.
Specifically, as shown in fig. 1, a through hole 203 is provided between the air reservoir 202 and the spring chamber 201 to communicate the spring chamber 201 and the air reservoir 202 with each other, a check valve 7 connected to the air intake passage 101 is provided in the air reservoir 202, and the check valve 7 is opened when the pressure in the air reservoir 202 is greater than the pressure in the air intake passage 101.
Since overpressure may be generated due to sudden change of environment and if gas is discharged without being supplemented, internal negative pressure may be generated, so that when the pressure is high, gas enters the gas storage chamber 202 from the spring chamber 201 for temporary storage, and when the pressure in the cabin is restored, the pressure in the gas storage chamber 202 is higher than the pressure in the gas inlet channel 101, so that the gas storage chamber 202 inflates the cabin again to balance the pressure.
Specifically, as shown in fig. 1, the outer wall of the gas storage cover 2 is spherical, a spherical accommodating space is provided inside the housing 1, and the volume of the gas storage chamber 202 is at least one half of the spherical accommodating space inside the housing 1.
In order to increase the air storage capacity of the air storage cover 2 and achieve better buffering and balancing effects, the volume of the air storage chamber 202 can be set as large as possible on the premise of ensuring the structural strength and the inflation speed, the increase of the volume of the air storage chamber 202 can be realized by reducing the diameter of the spring chamber 201 or reducing the gap width of the air inlet channel 101, and the air inlet channel 101 is annularly distributed, so that the timely width is small, and the air ventilation capacity is still large.
Specifically, as shown in fig. 2 and 6, the connecting sleeve 13 is internally screwed with the sealing sleeve 5, the upper end surface of the valve plug 3 is provided with a contact end surface 31, the bottom of the sealing sleeve 5 is provided with a contact plate 52 attached to the contact end surface 31, the sealing sleeve 5 is provided with an air inlet 501 extending from the upper end surface of the sealing sleeve to the contact plate 52, and the outer side of the air inlet 501 is provided with an air inlet groove 502 extending to the side wall of the sealing sleeve 5.
The sealing sleeve 5 is mainly used for being matched with the gas conveying pipe 6 to be used, the sealing and connecting effects are achieved, when the sealing sleeve is not in an inflated state, the sealing sleeve 5 is arranged on the inner wall of the connecting sleeve 13, the gas inlet groove 502 is located on the inner side of the side wall rubber ring 131 to form a sealed state, water pressure cannot act on the valve plug 3, and sealing reliability is guaranteed.
Specifically, as shown in fig. 4, when the valve plug 3 is separated from the arc-shaped cover portion 11, an air intake gap 112 is formed between the valve plug 3 and the arc-shaped cover portion 11, the air intake duct 502 is communicated with the air intake gap 112, the outer wall of the valve plug 3 and the inner wall of the arc-shaped cover portion 11 at the corresponding position are both provided with an annular groove 111, and the annular groove 111 is provided with a first sealing ring 32.
When needing to inflate, gas-supply pipe 6 and closing cover 5 involutory, and make pin 61 and pinhole 503 peg graft together, then rotate gas-supply pipe 6, in the time of the rotation, gas-supply pipe 6 screws into the inner wall of adapter sleeve 13, closing cover 5 moves down, valve plug 3 is because the extrusion of closing cover 5 also moves down, intake gap 112 between arc cover portion 11 and valve plug 3 is opened, intake duct 502 is also in intake gap 112 simultaneously, the gas in gas-supply pipe 6 can be in the same direction as air inlet 501, intake duct 502 enters into intake gap 112 and air intake passage 101, the in-process of closing is opposite with the inflation process, screw out gas-supply pipe 6 backward can, in the in-process of screwing out, intake duct 502 closes gradually, valve plug 3 pastes tightly with arc cover portion 11 gradually, form the sealed of valve.
Specifically, as shown in fig. 2 and 4, the wall surface of the annular groove 111 on the arc-shaped cover portion 11 is at least three annular planes connected end to end, the wall surface of the annular groove 111 on the valve plug 3 is an annular arc surface attached to the first sealing ring 32, and the first sealing ring 32 is connected in the annular arc surface in a clamping manner.
In order to ensure the sealing reliability of the first sealing ring 32, the first sealing ring 32 is clamped and positioned by using one cambered annular groove 111, and the first sealing ring 32 can be deformed by using the other cambered annular groove 111 with an inclined plane, so that the sealing reliability after compression is ensured.
Specifically, as shown in fig. 4, the inner wall of the connecting sleeve 13 is further provided with a sidewall rubber ring 131 located outside the air inlet groove 502, the height of the sidewall rubber ring 131 is greater than the height of the air inlet groove 502, the bottom of the connecting sleeve 13 is provided with a second sealing ring 132 attached to the valve plug 3, and the connecting sleeve 13 is also detachably connected with an air pipe 6.
In order to increase the sealing performance between the air inlet groove 502 and the connecting sleeve 13, the periphery of the air inlet groove 502 is sealed by the side wall rubber ring 131, and the whole sealing effect of the sealing sleeve 5 is ensured.
Specifically, as shown in fig. 4, a pin 61 is arranged below the gas pipe 6, a pin hole 503 matched with the pin 61 is arranged on the upper end surface of the sealing sleeve 5, and the outer walls of the sealing sleeve 5 and the gas pipe 6 are both provided with a threaded connection part 51 matched with the connection sleeve 13.
Mainly for when the air pipe 6 is screwed into adapter sleeve 13, can play the connection effect, also will open simultaneously with the connecting channel between air intake passage 101, and when withdrawing from air pipe 6, also will close simultaneously with the connecting channel between air intake passage 101, consequently more convenient and fast in the inflation process.
Specifically, as shown in fig. 5, the check valve 7 includes a plug plate 71, a guide rod 72, a pressing plate 73 and a third spring 74, the plug plate 71 and the pressing plate 73 are fixedly connected through the guide rod 72, the third spring 74 is arranged between the pressing plate 73 and the gas storage cover 2, and the guide rod 72 is movably connected to a return hole 701 of the gas storage cover 2.
When the pressure outside the backflow hole 701 is high (the pressure inside the air inlet channel 101), the plug plate 71 is tightly attached to the outer wall of the air storage cover 2, the check valve 7 is in a closed state, and when the pressure outside the backflow hole 701 is low, the plug plate 71 is subjected to the pressure of the air pressure inside the backflow hole 701, so that the plug plate 71 is opened, the check valve 7 is in a conducting state, the air storage chamber 202 is inflated into the cabin again, and the pressure balance is achieved.
The working principle is as follows: one end of the connecting part 12 is installed on the cabin body and fixed in the bolt hole 121 by using bolt connection, the wall surface of the connecting part with the cabin body is coated with soft silicone grease for sealing, after the connection between the shell 1 and the cabin body is completed, the arc cover part 11 leaks out of the cabin body, the hemispherical shape has higher pressure resistance, on the other hand, the inner part of the arc cover part is enabled to have a larger accommodating space, the shape of the gas storage cover 2 is a ball-like structure, a gap is arranged between the outer wall of the gas storage cover and the inner wall of the shell 1, the gap forms a gas inlet channel 101, gas entering from the connecting sleeve 13 on the shell 1 during inflation enters the cabin body from the gas inlet channel 101, a column-shaped spring chamber 201 is formed at the middle position of the gas storage cover 2, the upper end has a larger opening, the lower part has a smaller opening, the valve plug 3 is movably connected in the spring chamber 201, when the valve plug 3 is attached to the connecting sleeve 13 and the wall surface of the housing 1, the air inlet channel 101 is closed, when the valve plug 3 is separated from the connecting sleeve 13 and the wall surface of the housing 1, the air inlet channel 101 is opened, the downward movement of the valve plug 3 is extruded by the sealing sleeve 5 in the connecting sleeve 13, namely, only in the inflation state, the air inlet channel 101 is opened, in order to ensure that the inflation state, the air can not enter the air storage chamber 202, the valve hole 204 is sealed by the pressure relief valve plug 4, so that the inflated air can enter the cabin body along the air inlet cavity 102 and can not enter the air storage chamber 202, when the inflation is finished, the over-high pressure is generated in the cabin body, the pressure relief valve plug 4 is opened, the air firstly enters the spring chamber 201 and then enters the air storage chamber 202, because the air storage cover 2 is of a sphere-like structure, the storage space inside the air storage cover is large, when the inflation is needed, the air delivery pipe 6 is closed with the sealing sleeve 5, the pin 61 and the pin hole 503 are inserted together, then the air pipe 6 is rotated, the air pipe 6 is screwed into the inner wall of the connecting sleeve 13 while rotating, the sealing sleeve 5 moves downwards, the valve plug 3 moves downwards due to the extrusion of the sealing sleeve 5, the air inlet gap 112 between the arc cover part 11 and the valve plug 3 is opened, meanwhile, the air inlet groove 502 is also positioned in the air inlet gap 112, the air in the air pipe 6 can enter the air inlet gap 112 and the air inlet channel 101 along the air inlet 501 and the air inlet groove 502, the closing process is opposite to the inflating process, the air pipe 6 is screwed out reversely, in the screwing-out process, the air inlet groove 502 is closed gradually, the valve plug 3 is attached to the arc cover part 11 gradually to form the sealing of the valve, the connecting ring 21 is an annular connecting part, the side wall of the connecting groove 211 is arranged, the air inlet channel 101 and the air inlet cavity 102 can be communicated, when inflating, the rushing gas enters the gas inlet cavity 102 from the gas inlet channel 101 along the communication groove 211; the spring chamber 201 is a relatively closed space, is communicated with the air storage chamber 202, plays a transitional role, and is mainly used for containing a pressure relief spring 41 and a first spring 33, the first spring 33 is used for pressing the valve plug 3, so that the valve plug 3 is tightly abutted against the inner wall of the arc-shaped cover part 11, so that the air inlet channel 101 is closed, the pressure relief spring 41 is used for extruding the pressure relief valve plug 4, the pressure relief spring 41 can change different elasticity according to the maximum value of required pressure relief, when the cabin body is subjected to overpressure, the pressure relief valve plug 4 is jacked open, so that air enters the spring chamber 201 and the air storage chamber 202 to be stored, so as to relieve overpressure impact, when the overpressure disappears, the pressure in the air storage chamber 202 is greater than the pressure in the air inlet channel 101, the air reenters the cabin body from the check valve 7, so as to realize air pressure balance, the overpressure can be generated due to sudden environmental change, and if the air is discharged without being supplemented, an internal negative pressure may be generated, so that when the pressure is high, gas enters the air reservoir 202 from the spring chamber 201 for temporary storage, and when the pressure in the cabin is restored, the pressure in the air reservoir 202 is higher than the pressure in the air inlet passage 101, so that the air reservoir 202 is inflated again into the cabin for pressure balance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. The sealed cabin inflation sealing valve under the deep water environment is characterized in that: the method comprises the following steps:
the cabin comprises a shell (1), wherein one end of the shell (1) is provided with a connecting part (12) connected with a cabin body, the connecting part (12) is provided with a bolt hole (121), the other end of the shell (1) is provided with an arc-shaped cover part (11), and a connecting sleeve (13) is arranged in the middle of the arc-shaped cover part (11);
the gas storage cover (2) is fixed inside the shell (1), a spring chamber (201) is arranged in the middle of the gas storage cover (2), an air inlet channel (101) is formed in an interlayer space between the gas storage cover (2) and the shell (1), and a gas storage chamber (202) is arranged inside the gas storage cover (2);
the air inlet channel comprises a valve plug (3) and a pressure relief valve plug (4), wherein the valve plug (3) and the pressure relief valve plug (4) are movably connected in a spring chamber (201), the valve plug (3) is used for plugging an air inlet gap (112) between the air inlet channel (101) and a connecting sleeve (13), and the pressure relief valve plug (4) is used for plugging a valve hole (204) between the spring chamber (201) and the connecting part (12);
a through hole (203) is formed between the air storage chamber (202) and the spring chamber (201) so that the spring chamber (201) and the air storage chamber (202) are communicated with each other, a one-way valve (7) connected with the air inlet channel (101) is arranged in the air storage chamber (202), and when the pressure of the air storage chamber (202) is higher than the pressure in the air inlet channel (101), the one-way valve (7) is opened;
the gas storage cover (2) is fixedly connected with the shell (1) through a connecting ring (21), an air inlet cavity (102) is arranged inside the shell (1) and positioned at the inner side of the connecting part (12), the air inlet cavity (102) extends to the inner side of the connecting ring (21), a communication groove (211) communicated with the air inlet channel (101) is formed in the connecting ring (21), the spring chamber (201) is communicated with the air inlet cavity (102) through a valve hole (204), the pressure relief valve plug (4) closes the valve hole (204) through a pressure relief spring (41), the other end of the pressure relief spring (41) is connected to the valve plug (3), a first spring (33) is further arranged in the spring chamber (201), one end of the first spring (33) abuts against the bottom of the valve plug (3), and the other end of the first spring (33) is connected with the gas storage cover (2);
a sealing sleeve (5) is connected to the inner portion of the connecting sleeve (13) in a threaded manner, a contact end face (31) is arranged on the upper end face of the valve plug (3), a contact plate (52) attached to the contact end face (31) is arranged at the bottom of the sealing sleeve (5), an air inlet (501) extending from the upper end face of the sealing sleeve to the contact plate (52) is formed in the sealing sleeve (5), and an air inlet groove (502) extending to the side wall of the sealing sleeve (5) is formed in the outer side of the air inlet (501);
the below of gas-supply pipe (6) is equipped with round pin post (61), the up end of closed sleeve (5) be equipped with round pin post (61) complex pinhole (503), the outer wall of closed sleeve (5) and gas-supply pipe (6) all be equipped with adapter sleeve (13) complex threaded connection portion (51).
2. The deepwater environment sealed cabin inflation sealing valve as claimed in claim 1, wherein: check valve (7) include cock board (71), guide arm (72), clamp plate (73) and third spring (74), pass through between cock board (71) and the clamp plate (73) guide arm (72) fixed connection, clamp plate (73) with be equipped with third spring (74) between gas storage cover (2), guide arm (72) swing joint is in return flow hole (701) on gas storage cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110502446.4A CN113294542A (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010691477.4A CN111828695B (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
| CN202110502446.4A CN113294542A (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010691477.4A Division CN111828695B (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294542A true CN113294542A (en) | 2021-08-24 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110502444.5A Pending CN113294541A (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve under deep water environment |
| CN202010691477.4A Active CN111828695B (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
| CN202110502446.4A Withdrawn CN113294542A (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110502444.5A Pending CN113294541A (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve under deep water environment |
| CN202010691477.4A Active CN111828695B (en) | 2020-07-17 | 2020-07-17 | Sealed cabin inflation sealing valve in deep water environment |
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| CN (3) | CN113294541A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112808328B (en) * | 2021-02-04 | 2023-08-11 | 上海蓝梭电子科技有限公司 | High-strength deep sea simulation high-compaction inspection cabin and use method |
| CN113260180B (en) * | 2021-06-30 | 2021-10-01 | 深之蓝(天津)水下智能科技有限公司 | Underwater sealed cabin and underwater equipment with electronic element |
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| CN1322905A (en) * | 2000-05-08 | 2001-11-21 | 帕森斯及惠特莫尔有限公司 | Two-way check valve using for hydraulic system |
| CN107084310A (en) * | 2017-06-07 | 2017-08-22 | 江苏新久扬环保设备科技有限公司 | Petroleum vapor recovery floating ball one-way valve and device for recovering oil and gas |
| CN111232169A (en) * | 2020-02-25 | 2020-06-05 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Deep-sea ultrahigh-pressure cabin entering and exiting auxiliary device and operation method thereof |
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| NZ264739A (en) * | 1994-10-20 | 1995-07-26 | Englefield Ind Ltd | Vacuum relief valve for pipe: fitting surrounds and penetrates pipe |
| CN2769648Y (en) * | 2004-09-16 | 2006-04-05 | 管奕 | Air inflating and exhausting valve |
| DE102006030160A1 (en) * | 2006-06-29 | 2008-01-03 | Schaeffler Kg | Device for automatically venting a pressurized fluid supply system |
| CN202901403U (en) * | 2012-11-15 | 2013-04-24 | 张海平 | Gas inflation valve |
| CN204477408U (en) * | 2014-12-19 | 2015-07-15 | 天津市金正阀门有限公司 | High-pressure gas Relief Valves over Long DistancePipeline |
| CN105090582A (en) * | 2015-08-31 | 2015-11-25 | 厦门金升泵电子科技有限公司 | Pressure gas release valve |
| CN205908823U (en) * | 2016-07-27 | 2017-01-25 | 仪征市升泰环境材料有限公司 | Control valve for material pallet air bag |
| CN206860971U (en) * | 2017-03-16 | 2018-01-09 | 中国人民解放军海军医学研究所 | Air bag connection valve |
| CN108050283B (en) * | 2017-12-13 | 2019-04-09 | 中国电子科技集团公司第三研究所 | A kind of gas-flow closure valve of sealed compartment, lose heart sealed valve and sealed compartment |
| CN110878841A (en) * | 2018-09-05 | 2020-03-13 | 北京中科海讯数字科技股份有限公司 | Simple gas sealing valve |
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2020
- 2020-07-17 CN CN202110502444.5A patent/CN113294541A/en active Pending
- 2020-07-17 CN CN202010691477.4A patent/CN111828695B/en active Active
- 2020-07-17 CN CN202110502446.4A patent/CN113294542A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322905A (en) * | 2000-05-08 | 2001-11-21 | 帕森斯及惠特莫尔有限公司 | Two-way check valve using for hydraulic system |
| CN107084310A (en) * | 2017-06-07 | 2017-08-22 | 江苏新久扬环保设备科技有限公司 | Petroleum vapor recovery floating ball one-way valve and device for recovering oil and gas |
| CN111232169A (en) * | 2020-02-25 | 2020-06-05 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Deep-sea ultrahigh-pressure cabin entering and exiting auxiliary device and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113294541A (en) | 2021-08-24 |
| CN111828695B (en) | 2021-06-15 |
| CN111828695A (en) | 2020-10-27 |
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Application publication date: 20210824 |