CN202733084U - Seawater pressure balance valve - Google Patents

Seawater pressure balance valve Download PDF

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Publication number
CN202733084U
CN202733084U CN 201220198319 CN201220198319U CN202733084U CN 202733084 U CN202733084 U CN 202733084U CN 201220198319 CN201220198319 CN 201220198319 CN 201220198319 U CN201220198319 U CN 201220198319U CN 202733084 U CN202733084 U CN 202733084U
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CN
China
Prior art keywords
valve
seat
spool
ball
ball seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220198319
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Chinese (zh)
Inventor
刘银水
江涛
吴德发
李东林
杨曙东
李晓晖
唐群国
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Priority to CN 201220198319 priority Critical patent/CN202733084U/en
Application granted granted Critical
Publication of CN202733084U publication Critical patent/CN202733084U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a seawater pressure balance valve, comprising a valve body, a valve seat, a valve bush and a spool component, wherein the valve seat is arranged on one end of the valve body; the valve bush is arranged on the other end of the valve body; the spool component comprises a ball seat and a spool which is arranged on one end of the ball seat; the spool and the valve seat contact to form a valve port; the other end of the ball seat is connected into the valve bush in a sheathing way; the valve seat comprises a valve seat base body, an internal embedment sleeve and a pressing sleeve; a stepped hole is arranged in the interior of the valve seat base body; one end of the stepped hole is used as a water inlet; the other end of the stepped hole is connected with the valve body in a thread way; the internal embedment sleeve is a hollow ring type body; the outer side of one end of the internal embedment sleeve is convex, so that a convex shoulder is formed; one end of the internal embedment sleeve is connected with the stepped hole in the valve seat base body in a resisting way through the convex shoulder; the other end of the internal embedment sleeve and the spool form the valve port; the pressing sleeve is sheathed in the outer periphery of the internal embedment sleeve; one end of the pressing sleeve is connected onto the convex shoulder of the internal embedment sleeve; and the other end of the pressing sleeve is matched with the valve body through a seal ring, so that a static seal is formed. With the adoption of the seawater pressure balance valve, the controllable water injection and discharge of a system can be guaranteed; and moreover, the vibration is lower, the entrance pressure and the exit pressure are stable, and the exit pressure of a seawater pump can be prevented from being lower than the entrance pressure to cause a reversion working condition.

Description

The sea water pressure balance valve
Technical field
The utility model belongs to the control valve class, is specifically related to a kind of sea water pressure balance valve, applicable to the hydraulic pressure buoyancy regulating system take seawater, fresh water etc. as working medium.
Background technique
The sea water hydraulic buoyancy regulating system has been successfully applied in the manned deep-sea vehicle, and its principle as shown in Figure 1.According to figure as can be known, the sea water pump running flows to by the electromagnetic valve working medium in the system, realizes notes, the draining of withstand voltage water tank in the latent device, to change seawater weight in the water tank, realizes the underwater balance of device of diving.Equilibrated valve is the key element of this system, and following effect is arranged:
When (1) guaranteeing that sea water pump does not start, seawater can directly not arrive water tank through sea water pump, makes system be in runaway condition;
(2) guarantee that delivery side of pump pressure always is higher than inlet pressure, thereby make pump counter-rotating can not occur, can not occur yet since the dark pressure in sea directly with the phenomenon of sea water encroachment to water tank
The 702nd research institute of China Shipbuilding Industry Corporation has announced a kind of ultra-high pressure sea water pressure balance valve (application number: 200810022671.2), its structure as shown in Figure 2, this valve mainly is comprised of valve body, valve seat, valve pocket, spring, spool, seal ring, spool is cone valve structure, be processed with groove on the spool conical surface seal ring is installed, the valve port place utilizes the compressive force that is enclosed within the generation of spool upper spring with spool and the sealing of valve seat cone match.This valve has solved seawater corrosion problem, the sealing problem of buoyancy adjustment special operation condition, but also has following several deficiency simultaneously: (1) valve port utilizes seal ring sealing on the spool conical surface, and seal ring has the danger of being gone out by high pressure water; (2) cone valve sealing is higher for requirement on machining accuracy, and the pressure loss is larger, in being unsuitable for, neritic zone; (3) this valve does not configure damping device, and vibration is large, easily causes inlet pressure unstable.
The model utility content
The purpose of this utility model is to provide a kind of energy to be used for the equilibrated valve of sea water hydraulic buoyancy regulating system, in being applicable to, neritic zone, can the assurance system annotate draining controlled, and vibrate less, the entrance and exit pressure stability can prevent that the sea water pump outlet pressure is higher and reversing damped condition occurs than inlet pressure.
The technological scheme that its technical problem that solves the utility model adopts is as follows:
A kind of sea water pressure balance valve, it is characterized in that, comprise valve body, be arranged on valve body one end valve seat, be arranged on the valve pocket of the valve body the other end and be arranged on valve hole part in the valve body, wherein, this valve hole part comprises ball seat and the spool that is arranged on this ball seat one end end, and this spool contacts with valve seat and forms valve port, and this ball seat the other end is socketed in the described valve pocket, wherein
Described valve seat comprises the valve seat matrix, is nested with and clamping sleeve, and this valve seat matrix inside is provided with shoulder hole, and the one end is as water inlet, and the other end is connected with valve body screw thread; Described being nested with is hollow ring body, and the end outside convexes to form convex shoulder, and this is nested with an end by the shoulder hole butt in this convex shoulder and the valve seat matrix, and the other end consists of valve port with spool; Described clamping sleeve is enclosed within and is nested with periphery, and the one end abuts on the convex shoulder that is nested with, and the other end cooperates the formation static seal by seal ring with valve body.
As improvement of the present utility model, described valve pocket is arranged on the valve body the other end with valve seat end coaxial line, and this valve pocket inside is provided with ladder hole, the one end is provided with groove, be used for installing seal ring, form static seal to cooperate with valve body, the other end is as the balance port of equilibrium valve.
As improvement of the present utility model, described ball seat is multidiameter shaft, this ball seat one end stretches in the shoulder hole of valve pocket, cooperate with described shoulder hole, be processed with ball-and-socket on the end face of the other end, be used for described spool is installed, and cover have spring between the ladder shaft part at this ball-and-socket place and the valve pocket, this spring one end is connected on the shaft shoulder of ladder shaft part at ball-and-socket place, the other end and described valve pocket end face butt.
As improvement of the present utility model, the interior two-stage shoulder hole of one end of described ball seat and the socket of described valve pocket and described valve pocket all cooperates and contacts, wherein being provided with groove with the shaft part of the ball seat that cooperates than macropore encloses so that lattice to be installed, be used for forming motive sealing with described valve pocket, the afterbody shaft part of ball seat with than the aperture Spielpassung, the cavity that forms between ball seat and the valve pocket communicates with described balance port by this gap, damping is carried out, the impact shock that is subject to alleviate spool in this gap that moves through of described ball seat.
As improvement of the present utility model, described spool is pottery or corrosion resistant alloy ball, and it cooperates with the described soft or hard that is nested with, and forms linear sealing.
Valve seat in the utility model is combination shape structure, by the valve seat matrix, be nested with, clamping sleeve forms, clamping sleeve and valve seat matrix are welded and fixed.Valve body is T shape three-way body, and same axis two ends are connecting valve seat and valve pocket respectively, with the valve seat connecting end be water inlet, with the valve pocket connecting end be balance port, and valve body T shape male end is water outlet.Wherein spool is spheroid, and ball seat is four sections multidiameter shafts, and two sections of an end are stretched in the valve pocket hole, and larger section of diameter has groove and lattice are installed are enclosed, and cooperates the formation motive sealing with valve pocket, and end segment and valve pocket be than the aperture Spielpassung, and forms cavity between the valve pocket.Ball seat the other end end face is processed with ball-and-socket, and mounting ball valve core, spring housing are contained between ball-and-socket section and the valve pocket.Valve port relies on spring force and hydraulic coupling that spool is pressed on and is nested with, and forms linear sealing.This valve is connected to tubular type with other elements and is connected.
Sea water pressure balance valve of the present utility model has following advantage:
(1) valve seat adopts fabricated structure, and embedded engineering plastics in Structural Hardware are that soft or hard cooperates with spool, forms linear sealing, and seal pressure is little, guarantees excellent sealing, reduces the through-flow pressure loss of valve port.
(2) spool adopts the spheroid of shaping operation, easily guarantees its requirement on machining accuracy, and valve core material is pottery or corrosion resistant alloy, has improved cavitation and the tension silk erosiveness of spool
(3) ball seat is spring positioning and guiding, on the other hand spacing spool on the one hand; The ball-and-socket diameter is a bit larger tham ball on the ball seat, guarantees the self-align ability of ceramic ball and valve seat, seals more reliable.
(4) this valve is provided with vibration damping equipment, and vibration damping equipment is comprised of ball seat, valve pocket, and the cavity that forms between the two communicates with balance port with the gap of valve pocket by ball valve seat afterbody bar.Water in the cavity has damping function because turnover will pass through very little slit to the motion of ball seat, the spool impact shock that has reduced to adopt the physical property of ball valve form and water to bring, thereby the stability of assurance valve inlet seawater pressure.
Description of drawings
Fig. 1 is sea water hydraulic buoyancy regulating system schematic diagram;
Fig. 2 is existing ultra-high pressure sea water pressure balance valve structure principle chart;
Fig. 3 is the structural representation of sea water pressure balance valve of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 3, the sea water pressure balance valve of the present embodiment comprises valve body 1, and the valve seat matrix 2 of in valve body 1, arranging successively, be nested with 3, clamping sleeve 4, spool 10, spring 5, ball seat 6, valve pocket 7.
Valve body 1 is T-shaped three-way body, and the two ends of same axis all are processed with internal thread, and T-shaped end threading in addition is water outlet O.
Valve seat is arranged on the end in the two ends of valve body coaxial line, as water intake.This valve seat is combined valve seat, comprises valve seat matrix 2, is nested with 3 and clamping sleeve 4.Wherein valve seat matrix 2 two ends all are processed with outside thread, and inside is processed with shoulder hole, and an end is as water inlet I, and the other end is sleeved in the valve body 1, is threaded with valve body 1.Be nested with 3 and be hollow ring body, end outside projection forms chimb, and integral body is the ladder ring-type, and material can be engineering plastics.Be nested with the 3 shoulder hole butts by this chimb and valve seat matrix 2, be nested with 3 the other ends and consist of valve port with spool 10.This is nested with 3 periphery covers clamping sleeve 4, and clamping sleeve 4 is annular solid, is processed with groove on the cylindrical seal ring 8 is installed, and the one end abuts to and is nested with on 3 the chimb, and the other end cooperates the formation static seal by seal ring 8 with valve body 1.When making valve seat, will be nested with first 3 and put into valve seat matrix 2 shoulder holes, and reinstall clamping sleeve 4 compressions and be nested with 3 ladder surface, at last valve seat matrix 2 and clamping sleeve 4 will be welded and fixed.
Valve pocket 7 is arranged on the other end in the two ends of valve body coaxial line, and these valve pocket 7 integral body are the ladder ring bodies, and inside is processed with shoulder hole, and an end threading is as the balance port B of equilibrium valve; Be processed with groove on the other end outer cylinder annular solid seal ring 8 is installed, cooperate with valve body 1 to form static seal; The ladder shaft part is processed with screw thread behind the groove, and valve pocket 7 utilizes this screw thread to be connected with valve body 1.
With the valve body contacting point seal ring 8 is housed all on clamping sleeve 4, the valve pocket 7, on the ball seat 6 lattice is housed and encloses 9.
Ball seat 6 is multidiameter shaft, is four sections multidiameter shafts in the present embodiment.Ball seat 6 one ends stretch in the shoulder hole of valve pocket 7, all have with two shoulder holes on the valve pocket 7 to cooperate, and wherein are processed with groove with the shaft part that cooperates than macropore and enclose 9 so that lattice to be installed, and form motive sealing.Afterbody shaft part and valve pocket utilize the cavity between valve pocket 7 and the ball seat 6 to form damping device than the aperture Spielpassung; Ball seat 6 the other ends stretch in the valve body 1, be processed with ball-and-socket on this end face multidiameter shaft, be used for installing spool 10, cover has spring 5 between the ladder shaft part at ball-and-socket place and the valve pocket 7, these spring 5 one ends are connected on the step of ladder shaft part at ball-and-socket place, the other end and valve pocket 7 end face butts, ball seat 6 can be spring 5 positioning and guidings.
Spool 10 is pottery or corrosion resistant alloy ball, and is nested with 3 soft or hards and cooperates, and forms linear sealing, as valve port.
During assembling, first seal ring 8 is respectively charged into groove on clamping sleeve 4 and the valve pocket 7, again lattice are enclosed 9 grooves on the ball seat 6 of packing into, the valve body 1 of then combined valve seat being packed into, then with in spool 10, ball seat 6, spring 5, the valve pocket 7 of packing into, at last with valve pocket 7 integral installations to valve body 1.
Ball seat (6) is spring (5) positioning and guiding on the one hand, utilizes on the other hand the shaft shoulder spacing; The upper ball-and-socket diameter of ball seat (6) is a bit larger tham spool (10), guarantees the self-align ability of spool (10) and valve seat, seals more reliable.
During the use state, sea water pressure balance valve inlet I is connected with the sea water pump entrance, and outlet O is connected with water tank end element, and balance port B and sea water pump entrance also connect.Working state is divided following two kinds of situations:
(1) when sea water pump during from water tank to the deep-sea draining, balance port B is water tank pressure, and outlet O pressure be deeply pressure of sea.When sea water pump did not start, the O mouth pressure was pressed on spool 10 and is nested with on 3, and O mouth place seawater is sealed.And behind starting sea water pump, the seawater pressure of entrance I rises, and when pressure surpassed the O mouth pressure, seawater flowed into valve body 1 intermediate cavity from being nested with 3 with spool 10 gaps, flows out from the O mouth to enter pipeline again, enters at last the ocean.
(2) when sea water pump during to the water tank water filling, the B mouth is the dark pressure in sea, and the O mouth is water tank pressure.When sea water pump did not start, I mouth seawater pressure was identical with the B mouth, and the compressive force that both active force differences on ball seat 6 add spring 5 is pressed on spool 10 and is nested with on 3, and I mouth seawater is sealed.Behind starting sea water pump, the I mouth pressure rises gradually, be enough to overcome the active force of B mouth pressure on ball seat 6, the compressive force of spring 5 when rising to, when lattice enclose 9 frictional force sum, be nested with 3 and spool 10 between produce the gap, seawater flows into valve body 1 intermediate cavity from the gap, flow out from the O mouth again, enter water tank by pipeline and other elements.

Claims (5)

1. sea water pressure balance valve, it is characterized in that, comprise valve body (1), be arranged on valve body (1) one end valve seat, be arranged on the valve pocket (7) of valve body (1) the other end and be arranged on valve hole part in the valve body (1), wherein, this valve hole part comprises ball seat (6) and is arranged on the spool (10) of these ball seat (6) one end ends, and this spool (10) contacts with valve seat and forms valve port, and this ball seat (6) the other end is socketed in the described valve pocket (7), wherein
Described valve seat comprises valve seat matrix (2), is nested with (3) and clamping sleeve (4), and this valve seat matrix (2) inside is provided with shoulder hole, and the one end is as water inlet, and the other end is threaded with valve body (1); Described being nested with (3) is hollow ring body, and the end outside convexes to form convex shoulder, and this is nested with (3) one ends by the shoulder hole butt in this convex shoulder and the valve seat matrix (2), and the other end consists of valve port with spool (10); Described clamping sleeve (4) is enclosed within and is nested with (3) periphery, and the one end abuts on the convex shoulder that is nested with (3), and the other end cooperates the formation static seal by seal ring (8) with valve body (1).
2. a kind of sea water pressure balance valve according to claim 1, it is characterized in that, described valve pocket (7) is arranged on valve body (1) upward and the other end of valve seat end coaxial line, this valve pocket (7) inside is provided with ladder hole, the one end is provided with groove, be used for installing seal ring (8), form static seal to cooperate with valve body (1), the other end is as the balance port of equilibrium valve.
3. a kind of sea water pressure balance valve according to claim 1 and 2, it is characterized in that, described ball seat (6) is multidiameter shaft, these ball seat (6) one ends stretch in the shoulder hole of valve pocket (7), cooperate with described shoulder hole, be processed with ball-and-socket on the end face of the other end, be used for installing described spool (10), and cover has spring (5) between the ladder shaft part at this ball-and-socket place and the valve pocket (7), these spring (5) one ends are connected on the shaft shoulder of ladder shaft part at ball-and-socket place, the other end and described valve pocket (7) end face butt.
4. a kind of sea water pressure balance valve according to claim 1 and 2, it is characterized in that, the interior two-stage shoulder hole of one end of described ball seat (6) and described valve pocket (7) socket and described valve pocket (7) all cooperates and contacts, wherein be provided with groove with the shaft part of the ball seat that cooperates than macropore (6) and enclose (9) so that lattice to be installed, be used for forming motive sealing with described valve pocket (7), the afterbody shaft part of ball seat (6) with than the aperture Spielpassung, the cavity that forms between ball seat (6) and the valve pocket (7) communicates with described balance port by this gap, damping shock absorption is carried out in this gap that moves through of described ball seat (6), the impact shock that is subject to alleviate spool (10).
5. a kind of sea water pressure balance valve according to claim 1 and 2 is characterized in that, described spool (10) is pottery or corrosion resistant alloy ball, and it cooperates with described being nested with (3) soft or hard, forms linear sealing.
CN 201220198319 2012-05-04 2012-05-04 Seawater pressure balance valve Expired - Fee Related CN202733084U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220198319 CN202733084U (en) 2012-05-04 2012-05-04 Seawater pressure balance valve

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Application Number Priority Date Filing Date Title
CN 201220198319 CN202733084U (en) 2012-05-04 2012-05-04 Seawater pressure balance valve

Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102678985A (en) * 2012-05-04 2012-09-19 华中科技大学 Seawater pressure balancing valve
CN103982685A (en) * 2014-05-09 2014-08-13 哈尔滨工程大学 Seawater corrosion resistant pressure-balanced valve
CN105090150A (en) * 2015-08-05 2015-11-25 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN105889524A (en) * 2014-10-23 2016-08-24 马良柱 High-pressure exhaust valve for high-pressure airless sprayer
CN110778554A (en) * 2019-09-16 2020-02-11 武汉华喜特种液压设备有限公司 Balance safety valve group for buoyancy adjusting system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102678985A (en) * 2012-05-04 2012-09-19 华中科技大学 Seawater pressure balancing valve
CN103982685A (en) * 2014-05-09 2014-08-13 哈尔滨工程大学 Seawater corrosion resistant pressure-balanced valve
CN105889524A (en) * 2014-10-23 2016-08-24 马良柱 High-pressure exhaust valve for high-pressure airless sprayer
CN105090150A (en) * 2015-08-05 2015-11-25 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN105090150B (en) * 2015-08-05 2017-03-22 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN110778554A (en) * 2019-09-16 2020-02-11 武汉华喜特种液压设备有限公司 Balance safety valve group for buoyancy adjusting system
CN110778554B (en) * 2019-09-16 2021-04-06 武汉华喜特种液压设备有限公司 Balance safety valve group for buoyancy adjusting system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20190504

CF01 Termination of patent right due to non-payment of annual fee