CN113889800A - High-reliability double-balanced-film type isobaric balance compensation system - Google Patents

High-reliability double-balanced-film type isobaric balance compensation system Download PDF

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Publication number
CN113889800A
CN113889800A CN202010624101.1A CN202010624101A CN113889800A CN 113889800 A CN113889800 A CN 113889800A CN 202010624101 A CN202010624101 A CN 202010624101A CN 113889800 A CN113889800 A CN 113889800A
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Prior art keywords
inner container
balance
balanced
membrane
holes
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Pending
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Inventor
李荣兰
庄申乐
刘云广
冯群
高睿晗
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Jinan Radio Nine Factory Co ltd
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Jinan Radio Nine Factory Co ltd
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Priority to CN202010624101.1A priority Critical patent/CN113889800A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure

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  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a high-reliability double-balanced membrane type isobaric balance compensation system.A liner is arranged in an inner shell and comprises a liner I and a liner II, wherein the liner II is arranged on one side of the liner I, the liner I and the liner II are connected together in a sealing way, and two ends of the liner are connected to the inner shell in a sealing way; a plurality of jack contact elements are arranged in the inner container, a plurality of through holes are formed in one side of each jack contact element, and insulating oil in the inner container cavity enters and exits the jack contact elements through the through holes; two ends of the jack contact element are hermetically connected to the inner container, and an inner cavity of the inner container is filled with insulating oil; the inner bag outside is equipped with balanced membrane II, II both ends of balanced membrane are connected on inner bag II, form internal pressure chamber II between balanced membrane II and the inner bag II, form external pressure chamber II between balanced membrane II and the interior casing. The invention adopts a double-balanced membrane type structure, is safer, has compact structural design and is convenient to process.

Description

High-reliability double-balanced-film type isobaric balance compensation system
Technical Field
The invention belongs to the technical field of electric connectors, and particularly relates to a high-reliability double-balanced-film type isobaric balance compensation system.
Background
The isobaric balance compensation system is based on the principle of incompressibility of liquid, and adjusts the pressure balance between the inside of an oil cavity of the connector plug and external seawater by means of elastic deformation of a balance film, so that the underwater plugging function of the connector in a deep sea environment is realized. The universal underwater plugging connector adopts a single-balance-film isobaric compensation structure, so that the reliability is low, the function of the connector is lost once the balance film fails, the safety of the whole system is reduced, and the maintenance cost of the whole system is increased.
Through retrieval, the pressure compensation device of the deep sea hydraulic system of application No. CN201120044776.5 comprises a horizontal action mechanism, a propelling screw, a vertical action mechanism, a cam, a corrugated compensator, an upper plate and an outer frame; the upper plates on the left side and the right side of the outer frame are symmetrically and fixedly connected with two horizontal acting mechanisms, rollers of the horizontal acting mechanisms are positioned on two sides of a cam, a vertical cylinder of the vertical acting mechanism is connected with a propelling screw, a vertical pressing plate is arranged on the top of the cam, the bottom of the cam is arranged on an upper flange of a corrugated compensator, a bottom flange of the corrugated compensator is fixedly connected to the bottom of the outer frame through bolts, a central hole of the bottom flange is concentric with a threaded hole of a bottom plate of the outer frame, the bottom plate of the outer frame is in threaded connection with an oil pipe, and then the bottom plate of the outer frame is connected with a hydraulic system needing pressure compensation;
the pressure balancing device in the prior art is easy to damage, and the balancing device is easy to damage in a high-pressure environment, so that water enters the connector, and the use of a product is influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a high-reliability double-balance film type isobaric balance compensation system, designs a double-skin type isobaric balance compensation system which can be used in a double-skin type underwater plug-in connector and reasonably solves the problem of underwater plug-in and pull-out in deep water environment of more than 7000 meters by the principle of incompressibility of liquid, adopts a double-balance film type structure, is safer, compact in structural design and convenient to process, is a used type underwater plug-in connection device, and has popularization and application values in various vibration environments with strict requirements on high reliability and strict requirements on underwater plug-in and pull-out in the deep water environment.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-reliability double-balanced-film type isobaric balance compensation system comprises a balanced film I, a balanced film II, a jack contact element and an inner shell, wherein an inner container is arranged inside the inner shell and comprises an inner container I and an inner container II, the inner container II is arranged on one side of the inner container I, the inner container I and the inner container II are connected together in a sealing mode, and two ends of the inner container are connected to the inner shell in a sealing mode; a plurality of jack contact elements are arranged in the inner container, a plurality of through holes are formed in one side of each jack contact element, and insulating oil in the inner container cavity enters and exits the jack contact elements through the through holes; two ends of the jack contact element are hermetically connected to the inner container, and an inner cavity of the inner container is filled with insulating oil; a balance film II is arranged outside the inner container, two ends of the balance film II are connected to the inner container II, an inner pressure cavity II is formed between the balance film II and the inner container II, an outer pressure cavity II is formed between the balance film II and the inner shell, a plurality of oil through holes II are additionally arranged on the inner container II at one time, and the cavity is communicated with the inner pressure cavity II through the oil through holes II;
the balance device is characterized in that a balance membrane I is arranged on one side of a balance membrane II, two ends of the balance membrane I are connected to the inner container I in a sealing mode, an inner pressure cavity I is formed between the balance membrane I and the inner container I, an outer pressure cavity I is formed between the balance membrane I and the inner shell, a plurality of oil through holes I are formed in one side of the balance membrane I, the oil through holes I are located in the inner container I, and the outer pressure cavity II is communicated with the inner pressure cavity I through the oil through holes I; one side of the outer cavity I is provided with a plurality of water inlet holes; when the connector is drained or the plug is inserted into the socket, the plug is inserted into the jack contact element, the pressure in the plug contact element is increased, the internal pressures of the cavity and the internal pressure cavity II are increased, the balance membrane II deforms outwards, the pressures of the external pressure cavity II and the internal pressure cavity I are increased, the balance membrane I deforms outwards, and water in the external pressure cavity I is discharged through the water inlet holes to realize pressure balance; when the connector is pulled out, the pressure is balanced conversely; when water flows out, the pressure in the outer pressure cavity I is reduced, the balance membrane I is pushed to deform outwards by the inner pressure cavity I and the outer pressure cavity II, and the balance membrane II is pushed to deform outwards by the cavity and the inner pressure cavity II, so that the balance of a pressure system is realized.
Preferably, a guide rod is arranged in the water inlet hole, the connecting end of the guide rod is connected to the inner shell through a support plate, a plurality of barrel water holes are formed in the support plate, a moving block is arranged on one side of the guide rod and slides on the guide rod, springs are arranged on two sides of the moving block, the springs push the moving block to be located in the middle of the guide rod, and flow limiting blocks are arranged on the other two sides of the moving block; when the pressure changes rapidly, the water flow pushes the moving block to move, the flowing water of the water is reduced through the moving block, and the damage of the balance film is avoided.
Preferably, the balance film I and the balance film II are in a cylindrical structure, and the two ends of the balance film I and the balance film II are thick and the middle is thin; the two ends are thick, so that the sealing and the pressing are convenient, and the cylinder wall is thin, so that the elasticity requirement is ensured.
Preferably, balanced membrane I is equipped with arcwall face I and arcwall face II respectively with balanced II both ends of membrane, balanced membrane I, balanced membrane II and interior casing and courage through radially compressing tightly sealed, and sealed face is the arc profile, and sealed effect is reliable, will guarantee after the equipment that balanced membrane section of thick bamboo wall is in lax state, avoids its long-term atress, influences product life.
Preferably, the inner container I is connected with the inner container II through an O-shaped ring; the O-shaped ring is elliptical after being assembled, and the major diameter of the O-shaped ring forms a certain angle with the horizontal direction, so that the effects of sealing and making up for the longitudinal dimension error are achieved.
Preferably, the baffle is equipped with on one side of the inlet hole, and the baffle passes through screw swing joint on interior casing, realizes the regulation to the inlet hole inflow through the position that removes the baffle, realizes the regulation to the balanced regulation rate of isostatic pressure to satisfy the plug-and-play function of connector.
Compared with the prior art, the invention has the beneficial effects that:
1) the pressure balance system is used in the plug connector in a deep water environment of more than 7000 m, and can adjust the pressure inside the oil cavity to be consistent with the external seawater pressure at any time in the processes of water inlet, water outlet and plug and socket plugging of the plug of the underwater plug connector, so that no pressure difference exists between the inside and the outside of the oil cavity. The difficulty of deep sea sealing is reduced, and the plugging function of the connector can be realized at any position under the working depth;
2) the safety of the connector in high-pressure water is improved through the double-balanced film type structure;
3) the movable block is pushed by the spring to move on the guide rod, so that the buffering effect on water flow is realized, and the damage to the balance film caused by rapid pressure increase and decrease is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a high-reliability double-balanced-film type isobaric balance compensation system of the invention;
FIG. 2 is a schematic structural diagram of a pressure balance system in the high-reliability double-balance membrane type isobaric balance compensation system;
FIG. 3 is a schematic diagram of a structure of a jack contact in a high-reliability double-balanced-film type isobaric balance compensation system;
FIG. 4 is a schematic structural diagram of a balance membrane I in the high-reliability double-balance membrane type isobaric balance compensation system;
FIG. 5 is a schematic structural diagram of a balance membrane II in the high-reliability double-balance membrane type isobaric balance compensation system;
FIG. 6 is a schematic structural diagram of an inner container I in the high-reliability double-balanced-film type isobaric balance compensation system;
FIG. 7 is a schematic structural diagram of the other side of an inner container I in the high-reliability double-balanced-film type isobaric balance compensation system;
FIG. 8 is a schematic diagram of a water inlet hole structure in a high-reliability double-balanced membrane type isobaric balance compensation system;
in the figure: 1-an inner shell, 2-water inlet holes, 3-a pressure balancing mechanism, 4-jack contact pieces, 41-through holes, 5-an inner container, 31-an outer pressure cavity I, 32-a balancing membrane I, 321-an arc surface I, 33-an outer pressure cavity II, 34-a balancing membrane II, 341-an arc surface II, 35-an inner pressure cavity II, 36-an oil through hole I, 37-an inner pressure cavity I, 38-an oil through hole II, 51-an O-shaped ring, 52-an inner container I, 53-an inner container II, 6-a cavity, 7-a flow limiting block, 8-a spring, 9-a guide rod, 10-a moving block, 11-a supporting plate, 12-a water through hole and 13-a baffle.
Detailed Description
For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 8.
A high-reliability double-balanced-film type isobaric balance compensation system comprises a balanced film I32, a balanced film II 34, a jack contact element 4 and an inner shell 1, wherein a liner 5 is arranged inside the inner shell 1, the liner 5 comprises a liner I52 and a liner II 53, the liner II 53 is arranged on one side of the liner I52, the liner I52 and the liner II 53 are connected together in a sealing mode, and two ends of the liner 5 are connected to the inner shell 1 in a sealing mode; a plurality of jack contact elements 4 are arranged in the inner container 5, a plurality of through holes 41 are formed in one side of each jack contact element 4, and insulating oil in the cavity 6 of the inner container 5 enters and exits the jack contact elements 4 through the through holes 41; two ends of the jack contact element 4 are hermetically connected to the inner container 5, and the inner cavity 6 of the inner container 5 is filled with insulating oil; a balance film II 34 is arranged outside the inner container 5, two ends of the balance film II 34 are connected to the inner container II 53, an inner pressure cavity II 35 is formed between the balance film II 34 and the inner container II 53, an outer pressure cavity II 33 is formed between the balance film II 34 and the inner shell 1, a plurality of oil through holes II 38 are additionally arranged on the inner container II 53 at one time, and the cavity 6 is communicated with the inner pressure cavity II 35 through the oil through holes II 38;
a balance membrane I32 is arranged on one side of the balance membrane II 34, two ends of the balance membrane I32 are connected to the inner container I52 in a sealing mode, an inner pressure cavity I37 is formed between the balance membrane I32 and the inner container I52, an outer pressure cavity I31 is formed between the balance membrane I32 and the inner shell 1, a plurality of oil through holes I36 are formed in one side of the balance membrane I32, the oil through holes I36 are located in the inner container I52, and the outer pressure cavity II 33 is communicated with the inner pressure cavity I37 through the oil through holes I36; one side of the outer cavity 6I is provided with a plurality of water inlet holes 2;
a guide rod 9 is arranged in the water inlet hole 2, the connecting end of the guide rod 9 is connected to the inner shell 1 through a support plate 11, a plurality of barrel water holes are formed in the support plate 11, a moving block 10 is arranged on one side of the guide rod 9, the moving block 10 slides on the guide rod 9, springs 8 are arranged on two sides of the moving block 10, the springs 8 push the moving block 10 to be located in the middle of the guide rod 9, and flow limiting blocks 7 are arranged on the other two sides of the moving block 10; when the pressure changes rapidly, the water flow pushes the moving block 10 to move, the running water of the water is reduced through the moving block 10, and the damage of the balance film is avoided.
The balance film I32 and the balance film II 34 are of a cylindrical structure, and the two ends of the balance film I32 and the balance film II 34 are thick, and the middle is thin; the two ends are thick, so that the sealing and the pressing are convenient, and the cylinder wall is thin, so that the elasticity requirement is ensured.
The two ends of the balance film I32 and the two ends of the balance film II 34 are respectively provided with an arc surface I and an arc surface II 341, the balance film I32, the balance film II 34, the inner shell 1 and the liner are sealed through radial compression, the sealing surface is an arc-shaped surface, the sealing effect is reliable, the wall of the balance film cylinder is ensured to be in a loose state after the balance film cylinder is assembled, the long-term stress of the balance film cylinder is avoided, and the service life of a product is influenced.
The inner container I52 is connected with the inner container II 53 through an O-shaped ring 51; the assembled O-ring 51 is elliptical, and the major diameter of the O-ring forms a certain angle with the horizontal direction, so that the effects of sealing and making up for longitudinal dimension errors are achieved.
The utility model discloses a connector, including the water inlet hole 2, the baffle 13 is equipped with in 2 one sides of water inlet hole, and baffle 13 passes through screw swing joint on interior casing 1, realizes the regulation to 2 inflow in the water inlet hole through the position that removes baffle 13, realizes the regulation to the balanced regulation rate of isostatic pressure to satisfy the plug-and-play function of connector.
This is the compensation theory of bladder compression for the present patent application. Specifically, the equation for this formula support compensation can be established:
ΔVG1＝πr1 2L-π(r-|Δr|)2(L-|ΔL|) (1)
since | Δ r and Δ L are very small and can be ignored, it is obtained
ΔVG1＝2πr1L|Δr|+πr1 2|ΔL| (2)
Wherein L is the length of the second bladder.
By substituting the above formula, the product can be obtained
Figure BDA0002564091940000071
For equation (3), substituting the other parameters yields:
Figure BDA0002564091940000072
when the internal and external pressures of the leather bag are balanced, the seawater pressure is set to be p, and p is provided1＝p2Substituting p into the formula to obtain
Figure BDA0002564091940000073
A high-reliability double-balanced film type isobaric balance compensation system comprises the following working processes: when the connector is drained or the plug is inserted into the socket, the plug is inserted into the jack contact element 4, the pressure in the plug contact element is increased, the internal pressures of the cavity 6 and the inner pressure cavity II 35 are increased, the balance membrane II 34 deforms outwards, the pressures of the outer pressure cavity II 33 and the inner pressure cavity I37 are increased, the balance membrane I32 deforms outwards, and the water in the outer pressure cavity I31 is discharged through the water inlet holes 2 to realize the balance of the pressure; when the connector is pulled out, the pressure is balanced conversely; when water flows out, the pressure in the outer pressure cavity I31 is reduced, the balance membrane I32 is pushed to deform outwards by the inner pressure cavity I37 and the outer pressure cavity II 33, and the balance membrane II 34 is pushed to deform outwards by the cavity 6 and the inner pressure cavity II 35, so that the balance of a pressure system is realized.
The pressure balance system is used in the plug connector in a deep water environment of more than 7000 m, and can adjust the pressure inside the oil cavity to be consistent with the external seawater pressure at any time in the processes of water inlet, water outlet and plug and socket plugging of the plug of the underwater plug connector, so that no pressure difference exists between the inside and the outside of the oil cavity. The difficulty of deep sea sealing is reduced, and the plugging function of the connector can be realized at any position under the working depth; the safety of the connector in high-pressure water is improved through the double-balanced film type structure; the spring 8 pushes the moving block 10 to move on the guide rod 9, so that the buffering effect on water flow is realized, and the balance film is prevented from being damaged by rapid pressure increase and decrease.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.

Claims (7)

1. The utility model provides a high-reliable balanced compensation system of isobaric balance of two balanced diaphragm types, includes I balanced membrane II of balanced membrane, jack contact, interior casing, its characterized in that: an inner container is arranged in the inner shell and comprises an inner container I and an inner container II, the inner container II is arranged on one side of the inner container I, the inner container I and the inner container II are connected together in a sealing mode, and two ends of the inner container are connected to the inner shell in a sealing mode; a plurality of jack contact elements are arranged in the inner container, a plurality of through holes are formed in one side of each jack contact element, and insulating oil in the inner container cavity enters and exits the jack contact elements through the through holes; two ends of the jack contact element are hermetically connected to the inner container, and an inner cavity of the inner container is filled with insulating oil; a balance film II is arranged outside the inner container, two ends of the balance film II are connected to the inner container II, an inner pressure cavity II is formed between the balance film II and the inner container II, an outer pressure cavity II is formed between the balance film II and the inner shell, a plurality of oil through holes II are additionally arranged on the inner container II at one time, and the cavity is communicated with the inner pressure cavity II through the oil through holes II;
the balance device is characterized in that a balance membrane I is arranged on one side of a balance membrane II, two ends of the balance membrane I are connected to the inner container I in a sealing mode, an inner pressure cavity I is formed between the balance membrane I and the inner container I, an outer pressure cavity I is formed between the balance membrane I and the inner shell, a plurality of oil through holes I are formed in one side of the balance membrane I, the oil through holes I are located in the inner container I, and the outer pressure cavity II is communicated with the inner pressure cavity I through the oil through holes I; a plurality of water inlet holes are formed in one side of the outer cavity body I.
2. The high-reliability double-balanced-film type isobaric balance compensation system according to claim 1, wherein a guide rod is arranged in the water inlet hole, the connecting end of the guide rod is connected to the inner shell through a support plate, a plurality of barrel water holes are formed in the support plate, a moving block is arranged on one side of the guide rod and slides on the guide rod, springs are arranged on two sides of the moving block and push the moving block to be located in the middle of the guide rod, and a current limiting block is arranged on the other two sides of the moving block.
3. The high-reliability double-balanced-membrane type isobaric balance compensation system according to claim 1, wherein the balancing membranes I and II are in cylindrical structures, and the two ends of the balancing membranes I and II are thick and the middle of the balancing membranes I and II is thin.
4. The high-reliability double-balanced-film type isobaric balance compensation system according to claim 1, wherein the two ends of the balanced film I and the balanced film II are respectively provided with an arc surface I and an arc surface II.
5. The high-reliability double-balanced-membrane type isobaric balance compensation system according to claim 1, wherein the inner container I is connected with the inner container II through an O-shaped ring.
6. The high-reliability double-balanced-film type isobaric balance compensation system according to claim 1, wherein a baffle is arranged on one side of the water inlet hole and movably connected to the inner shell through a screw.
7. The bladder of any one of claims 1 to 6 wherein the volume change of the compensating oil in the device to maintain equilibrium between internal and external pressures satisfies the following equation:
ΔVL＝|ΔVG|+|ΔVL1|-|ΔVG1|
wherein, VG0Volume of insulating oil in the second bladder, VL0Volume of insulating oil in the first bladder, EGAnd muGIs the modulus of elasticity and Poisson's ratio, Δ V, of the second bladderGIs the volume change of the insulation oil in the second leather bag after being pressed, delta VG1Is the volume change of the second skin pocket after compression, Δ VL1Is the change in volume, Δ V, of the first bladder after compressionLThe volume change of the first bladder after being pressed is the volume of the compensation insulating oil.
According to the definition of the liquid bulk modulus of elasticity, K is 1/beta, beta is the volume compression coefficient of the insulating oil, and
Figure FDA0002564091930000021
wherein, Δ p is a variation value of the insulating oil pressure; Δ V is the volume change of the volume of the insulating oil at the time of the pressure change Δ p. V is the initial volume of insulating oil. Can be obtained from the above formula
Figure FDA0002564091930000022
Thus, the number of the first and second electrodes,
Figure FDA0002564091930000023
Figure FDA0002564091930000024
the leather bag belongs to a thick-wall cylinder, and can be known from mechanics of materials when being subjected to internal pressure p1And external pressure p2When acting, the radial displacement delta r on the cylindrical surface with the radius r and the displacement delta L along the length L are respectively
Figure FDA0002564091930000031
Figure FDA0002564091930000032
Wherein r is1、r2Respectively the inner and outer radii of the second bladder. Due to r2＞r1And p is present during the establishment of the pressure equilibrium2＞p1And μGAt 0.32, Δ r < 0, i.e. the second bladder is compressed and decreases in volume during the pressure build-up.
CN202010624101.1A 2020-07-01 2020-07-01 High-reliability double-balanced-film type isobaric balance compensation system Pending CN113889800A (en)

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CN202010624101.1A CN113889800A (en) 2020-07-01 2020-07-01 High-reliability double-balanced-film type isobaric balance compensation system

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CN113889800A true CN113889800A (en) 2022-01-04

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