CN101929573B - Constant pressure regulating valve - Google Patents
Constant pressure regulating valve Download PDFInfo
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- CN101929573B CN101929573B CN2010102807500A CN201010280750A CN101929573B CN 101929573 B CN101929573 B CN 101929573B CN 2010102807500 A CN2010102807500 A CN 2010102807500A CN 201010280750 A CN201010280750 A CN 201010280750A CN 101929573 B CN101929573 B CN 101929573B
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Abstract
The invention relates to a constant pressure regulating valve. The regulating valve comprises a valve body, a valve cover, a sealing diaphragm, a valve core bar and a valve plug, wherein the valve core bar is slidably arranged in a hollow installation pipe in a sealing mode; the center part of the valve core bar passes through an installation hole of the central part of the sealing diaphragm and is hermetically and fixedly connected with the sealing diaphragm; the valve plug is fixedly arranged at one end of the valve core bar close to a liquid outlet; an outer sealed connection part and an inner sealed connection part are arranged between the valve core bar and the hollow installation pipe; a chamber is formed between the outer sealed connection part and the inner sealed connection part; a detection hole communicated with the chamber is formed on the hollow installation pipe; and the detection hole is connected with a detection device through a detection pipe. The problem that as the sealing performance of an air chamber of the valve in the prior art is deteriorated, air leakage cannot be detected in time is solved. The constant pressure regulating valve can timely detect the air leakage of the air chamber, and is particularly suitable for the production process of beer, beverages, medicaments and other hygiene products.
Description
Technical field
The present invention relates to a kind of valve, specifically a kind of constant pressure valve that is used in the health product manufacturing processes such as beer, beverage and medicine.
Background technique
Valve is extensively applied in the manufacturing process of health products such as beer, beverage and medicine as the relay and control structure in the fluid dispensing process.Chinese patent document CN2474848Y discloses a kind of liquid stabilizing valve, comprises housing, and there are water intake and water outlet in the housing two ends; Housing upper end is equipped with sealing cover, and the sealing cover middle part is equipped with the pressure adjusting nut, and that glue is installed is separated for liquid sealing between sealing cover and the housing; Glue is equipped with glue at a distance from gusset plate at a distance from upper surface, and glue is equipped with connecting rod at a distance from last liquid sealing, between pressure adjusting nut and connecting rod, pressure spring is installed; The lower hinge of connecting rod has the braking tongue, and the afterbody of braking tongue is connected with and moves shelves, moves the shelves front end and is installed with the sealing plug; Said sealing plug has tapering, and the sealing plug matches with water intake.Said pressure maintaining valve is at first set the steady pressure in the valve through the pressure adjusting nut; Because the elastic return force urges of pressure spring sealing plug and water intake are separated, thereby open water intake, when the continuous increase of the pressure in the valve surmounts the steady pressure of setting; Move pressure spring on glue is separated; Thereby under the linking mechanism effect of (referring to connecting rod, braking tongue and mobile shelves), the gap between plug and the water intake is dwindled again, inflow reduces; When water outlet was closed, outside water supply increased the pressure in the valve body, force glue at a distance from move; Spring is compressed; Drive linking mechanism (referring to connecting rod, braking tongue and mobile shelves) motion, move thereby drive in the sealing plug; Water intake is air-tight state with the sealing plug, thereby makes the interior pressure that keeps setting of valve.This valve has been realized the constant pressure in the valve to a certain extent.But still there is following defective in this technological scheme in concrete application process: at first, what spring can be along with access times increases the anti-fatigue performance variation; The precision of spring also can descend thereupon; Secondly, the pressure adjusting of spring need be regulated through the pressure adjusting nut, regulates more complicated.Therefore, can use air pressure to replace the pressure of spring through air cavity is set; Guide glue at a distance from moving up and down through center-pole; So not only avoided the restriction of spring working life, service precision, and pressure can realize when regulating through inflation and venting, simple and convenient.But, in this implementation, when the sealing property of sealing component of air cavity descends, cause gas leakage easily, and when leakage is not serious, be difficult in time find.As disclosing a kind of delay self-closing water-saving valve among the Chinese patent document CN100465490C; Have valve body, valve gap, valve rod and spool; Be provided with water intake and water outlet in the valve body, said valve gap is made up of bonnet and bottom flange, is provided with the elastic diaphragm that divides the space into upper gas chamber and lower air chamber in the space that bonnet and bottom flange surround; Valve rod passes bonnet, barrier film, bottom flange and stretches in the valve body; Its lower end is connected with spool, and valve rod and bonnet and bottom flange sealed sliding are dynamically connected, and are fixedly connected with barrier film.During work, said valve rod can move up and down.Be connected through seal ring between common said valve rod and said bonnet, the bottom flange, along with increasing of access times, the sealability of said seal ring can descend, and possibly cause said upper gas chamber and lower air chamber to leak gas to the outside.When leaking generation, be difficult in time be detected,, gas leakage just can come to light when seriously causing the valve member cisco unity malfunction, be unfavorable for the timely discovery and the processing of problem.Especially in industries such as beer, beverage, medicines, when gas leakage is serious, can cause the valve cisco unity malfunction, production can not be carried out smoothly, causes bigger loss.If when just gas leakage taking place, in time handle, then can reduce or avoid this loss.
Summary of the invention
For this reason, technical problem to be solved by this invention is that the sealability of its air cavity of valve of the prior art descends when causing leaking gas can not be by the problem of timely detection, thereby proposes a kind of constant pressure regulating valve that can in time detect air cavity gas leakage.
For solving the problems of the technologies described above, constant pressure regulating valve of the present invention comprises valve body, is spill, has a valve body mounting edge, and centre is provided with liquid outlet, and the next door of said liquid outlet is provided with liquid entering hole; Valve gap; Be spill; Has the valve gap mounting edge that cooperates with said valve body mounting edge linkage structure; The position seals corresponding with said liquid outlet in the central authorities of said valve gap is provided with a hollow mounting pipe regularly, and said hollow mounting pipe is passed said valve gap middle part, and the center-aligned of axial and said liquid outlet; On said valve gap, also be provided with the suction port that is connected with control air source equipment; Seal dissepiment, its edge are clamped between said valve body mounting edge and the said valve gap mounting edge hermetically, make to form the elastic packing air cavity between said valve gap and the said seal dissepiment, form fluid chamber between said valve body and the said seal dissepiment; The middle part of said seal dissepiment has mounting hole; A valve core rod, sealing is slidably mounted in the said hollow mounting pipe, and the said mounting hole at said seal dissepiment middle part is passed in the center, and is fixedly connected hermetically with said seal dissepiment; A valve plug is fixedly mounted on the end of said valve core rod near said liquid outlet; Be provided with between said valve core rod and the said hollow mounting pipe external sealed connection part with in the position that is tightly connected; Said external sealed connection part with in be tightly connected and form a chamber in the middle of the position; On said hollow mounting pipe, form a detection hole that is communicated with said chamber, said detection hole is connected with detection device through a detecting tube.
Said external sealed connection part and in the position that is tightly connected be respectively the seal ring that is arranged between said valve core rod outer wall and the said hollow mounting pipe inwall.
Said chamber comprise corresponding said external sealed connection part and in the be tightly connected female parts of the said valve core rod outer wall between the position.
Said chamber be included in said external sealed connection part and in the be tightly connected female parts of the said hollow mounting pipe inwall between the position.
Said valve plug is that to be connected the end bigger with said valve core rod, and towards the long-pending diminishing shape of the other end circular cross-section.
Be provided with baffle plate between said seal dissepiment and the said suction port.
Said valve core rod comprises center-pole and mounting sleeve; Be provided with radially outstanding annular flange flange at the middle part of said center-pole; Said mounting sleeve is arranged on said center-pole and closes on the said hollow mounting pipe outer wall partly, clamps between said mounting sleeve and the said annular flange flange and establishes said seal dissepiment.
Said seal dissepiment comprises seal dissepiment sheet and braking diaphragm; Said braking diaphragm is arranged on the said annular flange flange; Said seal dissepiment sheet and said actuation diaphragm sheet are fitted; The upper surface of said seal dissepiment sheet is provided with boss, and the bottom of said mounting sleeve is provided with groove, and said boss and groove connect and fix each other.
The top of said mounting sleeve is provided with the valve core rod stop collar, and said valve core rod stop collar is fixedly connected with said center-pole through bolt.
The cross section of said valve body is circular or oval.
Technique scheme of the present invention is compared existing technology and is had the following advantages:
(1) constant pressure regulating valve of the present invention comprises valve body, valve gap; Be arranged on the seal dissepiment between valve body and the valve gap, said valve gap and said seal dissepiment form the elastic packing air cavity, and the middle part sealing of said valve gap is provided with a hollow mounting pipe that is communicated with said inside cavity; A valve core rod slip is slidingly connected with hollow mounting pipe, and said valve core rod is fixedly connected with said seal dissepiment, and said valve core rod extend in the valve body; Said valve core rod and said hollow mounting pipe have the external sealed connection part with in the position that is tightly connected, said external sealed connection part with in be tightly connected and form a chamber in the middle of the position, on said hollow mounting pipe, form a detection hole that is communicated with said chamber; Said detection hole is connected with detection device through a detecting tube; Like this, when valve core rod moves up and down in said hollow mounting pipe, if the position that is tightly connected in said leaks gas; Gas will compile in said chamber; Export to said detection device by said detecting tube, the gas leakage that the sealed member sealing descends and causes in therefore can in time detecting is in time addressing the leakage concern the condition created; The production loss of having avoided gas leakage to cause the valve cisco unity malfunction and having caused has reduced the risk in the production process.
(2) constant pressure regulating valve of the present invention; Said external sealed connection part and in the position that is tightly connected be respectively the seal ring that is arranged between said valve core rod outer wall and the said hollow mounting pipe inwall; It is convenient that seal ring is installed and changed; Can in time change when causing leaking gas when finding that sealability descends, and simple structure, cost is low.
(3) constant pressure regulating valve of the present invention; Said cavity can comprise corresponding said external sealed connection part and in the be tightly connected female parts of the said valve core rod outer wall between the position; Also can be included in said external sealed connection part and in the be tightly connected female parts of the said hollow mounting pipe inwall between the position; Such design production and processing are all very convenient, select suitable position to be provided with as required, can be in the defecate collection of cavity internal exchange in detection when gas leakage.
(4) constant pressure regulating valve of the present invention, said valve plug are that to be connected the end bigger with said valve core rod, and towards the long-pending diminishing shape of the other end circular cross-section; Like this, through inflation and venting, can make valve core rod drive said valve plug and move up and down suction port; Thereby regulate the flow that flows into the fluid of liquid outlet from valve body; Valve plug simple in structure, control is got up convenient, and can effectively regulate flow.
(5) constant pressure regulating valve of the present invention; Be provided with baffle plate between said seal dissepiment and the said pore; When inflating in the air cavity of said valve gap and the formation of said seal dissepiment through gas port, said baffle plate is used for the air-flow of barrier gas, makes it can directly always not be used on the said seal dissepiment; Thereby reduced the impulse force of air-flow bigger when inflating, improved its working life seal dissepiment.
(6) constant pressure valve of the present invention; Said valve core rod comprises center-pole and mounting sleeve; Be provided with radially outstanding annular flange flange at the middle part of said center-pole, said mounting sleeve is arranged on said center-pole and closes on the said hollow mounting pipe outer wall partly, clamps between said mounting sleeve and the said annular flange flange said seal dissepiment is set; Like this through the annular flange flange on mounting sleeve and the center-pole; Realized and being sealedly and fixedly connected of said seal dissepiment, couple together simple and convenient, and good fixing effect.
(7) constant pressure valve of the present invention, said seal dissepiment comprise seal dissepiment sheet and braking diaphragm, and said braking diaphragm is arranged on the said annular flange flange; Said seal dissepiment sheet and said actuation diaphragm sheet are fitted; The upper surface of said seal dissepiment sheet is provided with boss, and the bottom of said mounting sleeve is provided with groove, and said boss and groove connect and fix each other; This mode that connects and fixes; Installation and removal are with very convenient, and the mode through the seal dissepiment sheet being set and braking diaphragm, improved the sealing and the elasticity of said seal dissepiment.
(8) constant pressure valve of the present invention; The top of said mounting sleeve is provided with the valve core rod stop collar, and said valve core rod stop collar is fixedly connected through bolt and said center-pole, like this; Just said center-pole is connected with said mounting sleeve and fixes, make center-pole and mounting sleeve link.
(9) constant pressure valve of the present invention, the cross section of said valve body are circular or oval, and the body wall of arc can reduce the residual of valve inner liquid, reduce the loss of liquid.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the sectional drawing of constant pressure valve of the present invention.
Reference character is expressed as among the figure: 1-valve body, 10-valve body mounting edge, 2-valve gap, 22-valve gap mounting edge, 3-seal dissepiment, 31-seal dissepiment sheet; 32-actuation diaphragm sheet, 4-suction port, 5-gas port standard piece, the hollow mounting pipe of 6-, 7-liquid entering hole; The 8-liquid outlet, 9-valve core rod, 91-mounting sleeve, 92-center-pole, 11,12, the 15-seal ring; The 13-baffle plate, 14-valve plug, 16-valve core rod stop collar, 17-detecting tube, 18-elastic packing air cavity; 19,20-bearing, the 21-annular flange flange, the 24-chamber, the 25-fluid chamber, 26-detects the hole.
Embodiment
Fig. 1 has provided a concrete mode of execution of constant pressure valve of the present invention, and a kind of constant pressure regulating valve comprises valve body 1, is spill, and the cross section of said valve body 1 is circular, also can be set to ellipse.Said valve body 1 has a valve body mounting edge 10, and centre is provided with liquid outlet 8, and the next door of said liquid outlet 8 is provided with liquid entering hole 7, and the liquid entering hole 7 here is an arc; Valve gap 2; Be spill; Has the valve gap mounting edge 22 that cooperates with said valve body mounting edge 10 linkage structures; Central authorities at said valve gap 2 are provided with a hollow mounting pipe 6 regularly with said liquid outlet 8 corresponding position seals, and said hollow mounting pipe 6 is passed said valve gap 2 middle parts, and the center-aligned of axial and said liquid outlet 8; On said valve gap 2, also be provided with the suction port 4 that is connected with control air source equipment, said suction port 4 places are provided with gas port standard piece 5, are used for being connected with control air source equipment; Seal dissepiment 3; Its edge is clamped between said valve body mounting edge 10 and the said valve gap mounting edge 22 hermetically; Make to form elastic packing air cavity 18 between said valve gap 2 and the said seal dissepiment 3, form fluid chamber 25 between said valve body 1 and the said seal dissepiment 3; The middle part of said seal dissepiment 3 has mounting hole; A valve core rod 9, sealing is slidably mounted in the said hollow mounting pipe 6, and the said mounting hole at said seal dissepiment 3 middle parts is passed in the center; And be fixedly connected hermetically with said seal dissepiment 3; At this, said valve core rod 9 comprises center-pole 92 and mounting sleeve 91, for the sealing that guarantees to connect between center-pole 92 and the mounting sleeve 91; Be provided with seal ring 11 between them; Be provided with radially outstanding annular flange flange 21 at the middle part of said center-pole 92, said mounting sleeve 91 is arranged on the outer wall that said center-pole 92 closes on said hollow mounting pipe 6 parts, clamps between said mounting sleeve 91 and the said annular flange flange 21 said seal dissepiment 3 is set.At this, said seal dissepiment 3 comprises seal dissepiment sheet 31 and braking diaphragm 32, and seal dissepiment sheet 31 materials here are EPDM, and promptly ethylene propylene diene rubber is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon; The actuation diaphragm sheet 32 is here processed for rubber and PTFE, and in order to improve its intensity, intermediate portion is a metallic material.Said braking diaphragm 32 is arranged on the said annular flange flange 21; Said seal dissepiment sheet 31 is fitted with said actuation diaphragm sheet 32; The upper surface of said seal dissepiment sheet 31 is provided with boss, and the bottom of said mounting sleeve 91 is provided with groove, and said boss and groove connect and fix each other.A valve plug 14 is fixedly mounted on the end of said valve core rod 9 near said liquid outlet 8; Be provided with between said valve core rod 9 and the said hollow mounting pipe 6 the external sealed connection part with in the position that is tightly connected; Said external sealed connection part with in be tightly connected and form a chamber 24 in the middle of the position; In the present embodiment; Said external sealed connection part and in the position that is tightly connected be respectively the seal ring that is arranged between said valve core rod outer wall and the said hollow mounting pipe inwall; Just be arranged on the outer wall of mounting sleeve 91 and the seal ring 15,12 between said hollow mounting pipe 6 inwalls; At this, said chamber 24 is chosen as the female parts of said valve core rod 9 outer walls that are arranged between seal ring 15 and the seal ring 12, the just female parts of mounting sleeve outer wall 91; The chamber 24 here can also perhaps comprise above-mentioned two female parts simultaneously for being arranged on the female parts of said hollow mounting pipe 6 inwalls between seal ring 15 and the seal ring 12.On said hollow mounting pipe 6, form a detection hole 26 that is communicated with said chamber 24, said detection hole 26 is connected with detection device through a detecting tube 17.
In the present embodiment, said valve plug 14 is that to be connected the end bigger with said valve core rod 9, and towards the long-pending diminishing shape of the other end circular cross-section.In addition, to the impact force of said seal dissepiment sheet 31 and braking diaphragm 32, be provided with baffle plate 13 between said seal dissepiment 3 and the said suction port 4 when inflating in order to reduce suction port 4; For the better effects if that said mounting sleeve 91 and said center-pole 92 are fixed, the top of said mounting sleeve 91 is provided with valve core rod stop collar 16, and said valve core rod stop collar 16 is fixedly connected with said center-pole 92 through bolt.Have again, between the inwall of the outer wall of said mounting sleeve 91 and said hollow mounting pipe 6, be provided with bearing 20, between the inwall of the outer wall of said valve core rod stop collar 16 and said hollow mounting pipe 6, also be provided with bearing 19, be convenient to valve core rod 9 and move up and down.
The described constant pressure valve of this instance, its working principle is following: when the described constant pressure regulating valve of present embodiment used, said suction port 4 linked to each other with control air source equipment; Be used for controlling the inflation and the venting of said suction port 4, said liquid outlet 8 places are provided with manometer, like pressure meter; Form the space between the valve plug 14 of said valve core rod 9 lower ends and the liquid outlet 8 during work, said fluid flows into valve inner through liquid entering hole 7, just gets into fluid chamber 25; Get into liquid outlet 8 from the space between valve plug 14 and the liquid outlet 8; Thereby the outflow valve body, at this moment, the pressure meter at liquid outlet 8 places shows the force value at liquid outlet place.Control air source equipment through suction port 4 places; Air pressure in the adjustment elastic packing air cavity 18; Making seal dissepiment 3 drive said valve core rod 9 moves up and down; Thereby the valve plug 14 of modulating valve core bar 9 lower ends and the space between the liquid outlet 8 make the pressure at liquid outlet 8 places remain in the pressure range of setting.At this moment, when the pressure of liquid entering hole 7 was constant, the pressure in the said elastic packing air cavity 18 did not need to adjust again, and it is stable that the force value of liquid outlet 8 keeps.When the pressure of liquid entering hole 7 increased, the pressure of fluid chamber 24 inner fluids moved upward said seal dissepiment 3, and said seal dissepiment 3 drives valve core rod 9 and moves upward; Move on the valve plug 14 simultaneously, the space between valve plug 14 and the liquid outlet 8 increases, and the fluid that flows into liquid outlet 8 increases; The pressure at liquid outlet 8 places increases; In order to make the pressure of liquid outlet 8 remain on the pressure of setting, at this moment, said control air source equipment need be inflated in said elastic packing air cavity 18; Making seal dissepiment 3 drive said valve core rod 9 moves downward; Valve plug 14 moves down thereupon simultaneously, and the gap between valve plug 14 and the liquid outlet 8 reduces, and makes the pressure of liquid outlet 8 get back to the scope of original setting; In like manner, when the pressure of said liquid entering hole 7 reduced, said seal dissepiment 3 drove valve core rod 9 and moves downward under the effect of the air pressure of elastic packing air cavity 18; Valve plug 14 moves down thereupon, makes that the gap between said valve plug 14 and the liquid outlet 8 dwindles, and the pressure of liquid outlet 8 reduces; This moment is in order to keep the pressure stability of liquid outlet 8, the control air source equipment venting at said suction port 4 places, the air pressure decline in the elastic packing air cavity 18; Said seal dissepiment 3 moves upward under the hydrodynamic pressure in fluid operating chamber 25; Valve core rod 9 drive valve plugs 14 with on move, make that the gap between valve plug 14 and the liquid outlet 8 increases, the fluid of entering liquid outlet 8 increases; The pressure at liquid outlet 8 places rises, and gets back to the pressure of former setting.Like this, make the constant pressure at said liquid outlet 8 places through adjusting.At this, also can pressure transducer be set at liquid outlet 8 places, when variation in pressure, send signal and pass to control air source equipment, realize automatic control and adjustment, make the constant pressure at liquid outlet 8 places.When valve core rod 9 moves up and down, if in the be tightly connected sealability at position descend, in the present embodiment for being arranged on the sealing decline of the seal ring 12 between mounting sleeve 91 outer walls and hollow mounting pipe 6 inwalls; When gas leakage takes place, after the gas leakage in the elastic packing air cavity 18, be pooled in the chamber 24 that the outer wall indent of mounting sleeve 91 forms; The said external sealed connection part just seal ring in the present embodiment 15 guarantees can not discharge from other paths after the gas leakages, but in said chamber 24, compiles, and the detection hole 26 on hollow mounting pipe 6 gets into detecting tubes 17; Thereby be discharged in the detection device, in time detected, at this moment; Just need to change seal ring 12; The gas leakage problem is in time handled, thereby the Security when having improved valve working has reduced the risk in the production process.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to mode of execution.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. a constant pressure regulating valve comprises
Valve body is spill, has a valve body mounting edge, and centre is provided with liquid outlet, and the next door of said liquid outlet is provided with liquid entering hole;
Valve gap; Be spill; Has the valve gap mounting edge that cooperates with said valve body mounting edge linkage structure; The position seals corresponding with said liquid outlet in the central authorities of said valve gap is provided with a hollow mounting pipe regularly, and said hollow mounting pipe is passed said valve gap middle part, and the center-aligned of axial and said liquid outlet; On said valve gap, also be provided with the suction port that is connected with control air source equipment;
Seal dissepiment, its edge are clamped between said valve body mounting edge and the said valve gap mounting edge hermetically, make to form the elastic packing air cavity between said valve gap and the said seal dissepiment, form fluid chamber between said valve body and the said seal dissepiment; The middle part of said seal dissepiment has mounting hole;
A valve core rod, sealing is slidably mounted in the said hollow mounting pipe, and the said mounting hole at said seal dissepiment middle part is passed in the center, and is fixedly connected hermetically with said seal dissepiment;
A valve plug is fixedly mounted on the end of said valve core rod near said liquid outlet;
It is characterized in that:
Be provided with between said valve core rod and the said hollow mounting pipe external sealed connection part with in the position that is tightly connected; Said external sealed connection part with in be tightly connected and form a chamber in the middle of the position; On said hollow mounting pipe, form a detection hole that is communicated with said chamber, said detection hole is connected with detection device through a detecting tube.
2. constant pressure regulating valve according to claim 1 is characterized in that: said external sealed connection part and in the position that is tightly connected be respectively the seal ring that is arranged between said valve core rod outer wall and the said hollow mounting pipe inwall.
3. constant pressure regulating valve according to claim 1 and 2 is characterized in that: said chamber comprise corresponding said external sealed connection part and in the be tightly connected female parts of the said valve core rod outer wall between the position.
4. constant pressure regulating valve according to claim 1 and 2 is characterized in that: said chamber be included in said external sealed connection part and in the be tightly connected female parts of the said hollow mounting pipe inwall between the position.
5. constant pressure regulating valve according to claim 3 is characterized in that: said valve plug is bigger for be connected the end with said valve core rod, and towards the long-pending diminishing shape of the other end circular cross-section.
6. constant pressure regulating valve according to claim 4 is characterized in that: be provided with baffle plate between said seal dissepiment and the said suction port.
7. according to claim 1 or 2 or 5 or 6 described constant pressure regulating valves; It is characterized in that: said valve core rod comprises center-pole and mounting sleeve; Be provided with radially outstanding annular flange flange at the middle part of said center-pole; Said mounting sleeve is arranged on said center-pole and closes on the said hollow mounting pipe outer wall partly, clamps between said mounting sleeve and the said annular flange flange said seal dissepiment is set.
8. constant pressure regulating valve according to claim 7; It is characterized in that: said seal dissepiment comprises seal dissepiment sheet and braking diaphragm; Said braking diaphragm is arranged on the said annular flange flange, and said seal dissepiment sheet and said braking diaphragm are fitted, and the upper surface of said seal dissepiment sheet is provided with boss; The bottom of said mounting sleeve is provided with groove, and said boss and groove connect and fix each other.
9. constant pressure regulating valve according to claim 7 is characterized in that: the top of said mounting sleeve is provided with the valve core rod stop collar, and said valve core rod stop collar is fixedly connected with said center-pole through bolt.
10. according to claim 1 or 2 or 5 or 6 or 8 or 9 described constant pressure regulating valves, it is characterized in that: the cross section of said valve body is circular or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102807500A CN101929573B (en) | 2010-09-14 | 2010-09-14 | Constant pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102807500A CN101929573B (en) | 2010-09-14 | 2010-09-14 | Constant pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929573A CN101929573A (en) | 2010-12-29 |
| CN101929573B true CN101929573B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102807500A Active CN101929573B (en) | 2010-09-14 | 2010-09-14 | Constant pressure regulating valve |
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| Country | Link |
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| CN (1) | CN101929573B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161512B (en) * | 2017-05-08 | 2018-11-16 | 浙江万升塑料包装有限公司 | It seals constant pressure combined type and seals bottle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20006105U1 (en) * | 2000-04-01 | 2000-06-29 | Apv Rosista Gmbh | Diaphragm valve |
| EP1413812A2 (en) * | 2002-10-23 | 2004-04-28 | Apv Rosista Gmbh | Diaphragm valve with fan-shaped diaphragm support |
| CN201787152U (en) * | 2010-09-14 | 2011-04-06 | 上海远安流体设备有限公司 | Constant pressure regulating valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6929026B1 (en) * | 2003-03-28 | 2005-08-16 | Joseph Wilfred Arlinghaus, Jr. | Sanitary liquid pressure regulator |
| DE102005016387B3 (en) * | 2005-04-09 | 2006-09-07 | Apv Rosista Gmbh | Membrane valve used in pneumatically controlled pressure control valves for maintaining constant pressures comprises a stationary plate detachedly positioned in a valve housing and formed as a radial tangent guide in its operating position |
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2010
- 2010-09-14 CN CN2010102807500A patent/CN101929573B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20006105U1 (en) * | 2000-04-01 | 2000-06-29 | Apv Rosista Gmbh | Diaphragm valve |
| EP1413812A2 (en) * | 2002-10-23 | 2004-04-28 | Apv Rosista Gmbh | Diaphragm valve with fan-shaped diaphragm support |
| CN201787152U (en) * | 2010-09-14 | 2011-04-06 | 上海远安流体设备有限公司 | Constant pressure regulating valve |
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| Publication number | Publication date |
|---|---|
| CN101929573A (en) | 2010-12-29 |
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Effective date of registration: 20170111 Address after: 201612 Shanghai city Songjiang District Shulin Road No. 358 Patentee after: Shanghai Yuanan Liquid Equipment Co., Ltd. Address before: China Economic Development Zone Huaxin Town Qingpu District Shanghai City No. 5 201708 Patentee before: Shanghai Yuanan Liquid Equipment Co., Ltd. |