EP3374676A1 - Pressure-maintaining and regulating valve - Google Patents
Pressure-maintaining and regulating valveInfo
- Publication number
- EP3374676A1 EP3374676A1 EP16805982.2A EP16805982A EP3374676A1 EP 3374676 A1 EP3374676 A1 EP 3374676A1 EP 16805982 A EP16805982 A EP 16805982A EP 3374676 A1 EP3374676 A1 EP 3374676A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diameter
- bore
- pressure holding
- control valve
- compression spring
- 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.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 12
- 239000007787 solid Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Classifications
-
- 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
- F16K17/0413—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 closure plates
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
-
- 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
- F16K17/0466—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 with a special seating surface
-
- 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
- F16K17/06—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 with special arrangements for adjusting the opening pressure
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/0608—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the controller being mounted within the flow path and having slidable elements
Definitions
- the invention relates to a pressure maintenance and control valve.
- Housing inlet channel leads and at the top of the housing outlet passage connects, and in which between the valve piston and acting on him adjustable pressure spring is a separation membrane which is tightly clamped between the valve housing containing the valve housing and a compression spring containing spring dome.
- a valve piston slidably leading guide disc is arranged, which forms with the cylindrical guide shaft of the valve piston over the entire shaft circumference extending narrow annular gap and up to this annular gap the underside of the diaphragm against the connected to the housing outlet passage valve seat top tightly covering wherein the radial width of the annular gap is dimensioned at most so large that the annular gap can be flowed through by the medium, depending on its viscosity, only with an effectively damped by throttling, slowed flow.
- the medium contains suspended solids or if the medium is a readily decomposable and / or polymerizing mixture, which is particularly the case of acrolein, which is processed in plants in which an intermediate formed in a precursor is pumped by a pump in a vacuum column.
- Liquid crude acrolein stabilized with phenolic inhibitors tends to accelerate deposition of polymerization products even when moving between metallic ones Surfaces is rubbed. This is the case when acrolein is passed through control valves having metallic closing contact surfaces. Such control valves are used in plants for
- the invention has for its object to provide a pressure holding and control valve, which has a long life, even when media are promoted, containing the solid constituents or tend to develop solid constituents in the passage through a plant.
- the pressure holding and control valve is characterized by a cylindrical valve housing having a top in which a central inlet bore is provided with a diameter d1, and with a bottom, in which an inner bore is provided, whose diameter d2 is greater than that of the diameter the inlet bore and the one outlet of the pressure holding and control valve forms a Verschwinkolben with an upper part whose diameter d3 is smaller than the diameter of the inner bore and larger than the diameter of the inlet bore, a freely movable, circular sealing disc made of an elastomer between the Verschpidkolben and an inner sealing surface which is formed between the inner bore and the inlet bore on an inner side of the valve housing, and by a compression spring which is supported in the inner bore and presses the sealing disc against the inner sealing surface via the closing piston.
- the pressure holding and control valve according to the invention is largely insensitive to the
- the pressure holding and control valve according to the invention has a self-cleaning effect, because, since all moving parts can move freely axially and laterally, deposits or aggregates of suspended
- the pressure retaining and regulating valve according to the invention is characterized in that the sealing disc has a diameter d3 which is greater than the diameter of the inlet bore plus the radial extent of the inner sealing surface, and which is smaller than the diameter of the upper part of the Verschwinkolbens , Due to these dimensions of
- Gasket is advantageously ensured that the gasket covers the inlet bore in any case, regardless of the lateral position of the gasket relative to the inlet bore.
- Inlet hole corresponds. This ensures advantageously that there is no bottleneck in the pressure maintenance and control valve for the flow of the medium to be delivered.
- Control valve characterized in that the top and the bottom of the valve housing are formed as a plane sealing surfaces.
- the top and the bottom can be used in an advantageous manner when installing the pressure holding and control valve as sealing surfaces against connection components.
- the pressure holding and regulating valve according to the invention is characterized in that the compression spring via a via a groove in the
- Control valve characterized in that between the Seegering and the compression spring at least one clamping ring for adjusting the bias of the compression spring is arranged.
- the clamping rings are advantageously a simple means to change the bias of the compression spring to adjust the spring force acting on the gasket to the respective needs.
- valve housing and the closing piston are made of metal. Due to the dimensioning of the components of the pressure holding and control valve according to the invention, the valve housing and the closure piston can be made of metal, without this having a disadvantageous effect in the formation of deposits in the medium to be delivered.
- Fig. 1 shows a section through an embodiment of the invention Druckhalte- and
- Fig. 2 shows a section through an installation of the pressure holding and control valve according to the invention in a process plant.
- the pressure holding and control valve has a cylindrical, metallic valve housing 1 with a top 2, in which a central inlet bore 3 with a
- the valve housing 1 comprises an inner bore 5, whose diameter d2 is greater than the diameter of the inlet bore 3 and which forms an outlet of the pressure holding and control valve.
- the valve housing 1 has an underside 4, which, like the upper side 2, is designed as a flat surface and thus can be used as sealing surfaces against connecting components during installation of the pressure retaining and control valve.
- a cylindrical, planar, inner sealing surface 6 is designed as a transition between the inner bore 5 and the
- a freely movable, circular sealing disk 7 made of an elastomer is arranged between a closing piston 8 and the sealing surface 6. As shown in FIG. 1, is the Diameter d3 of a cylindrical upper part 9 of the Verschdalekolbens 8 smaller than the diameter of the inner bore 5 but larger than the diameter of the inlet bore. 3
- the sealing washer 7 has a diameter d3 which is larger than the diameter of the
- the diameter d3 of the sealing disc 7 is smaller than the diameter of the upper part 9 of the Verschwinkolbens 8.
- the sealing disc 7 shoots so the inlet hole 3 regardless of the lateral position of the sealing disc 7 when the Verschwinkolben 8 the Sealing disk 7 presses against the sealing surface 6.
- the capping piston 8 has rounded marginal edges 10.
- a cylindrical lower part 11 of the capping piston 8 has a smaller diameter d4 than the inner diameter of a compression spring 12 which presses the capping piston 8 against the sealing surface 6 via the sealing disc 7.
- the compression spring 12 has between the turns free passage column.
- the outer diameter of the compression spring 12 is smaller than the diameter d2 of the inner bore 5.
- the compression spring 12 is biased by one or more clamping rings 13.
- the clamping rings 13 sit with fit h6 in the inner bore 5, which has a fit H7.
- the compression spring 12 exerts a force on the sealing disk 7 by means of the prestressing piston 8, whereby the inlet bore 3 is closed in a liquid-tight manner.
- the compression spring 12, the Verschdalekolben 8 and the sealing disc 7 may be in the
- Exit bore 5 move radially and arrange, as experiments show, in free play centric in the inner bore 5, when the pressure holding and control valve according to the invention is moved during operation. Therefore, the pressure holding and regulating valve according to the invention can be advantageously used, for example, on seagoing vessels, where the ordinate axis performs a tumbling motion due to the swell.
- the pressure holding and regulating valve according to FIG. 1 can, as shown in FIG. 2, be installed between two DIN flanges 17, 17 * using flat gaskets 18. If the flanges 17, 17 'are parts of two shut-off valves, the pressure-maintaining and regulating valve according to the invention can be easily adjusted during operation by locking both valves above and below the pressure-maintaining and control valve of FIG. 1 and by loosening bolts 19, 19' Remove.
- the developed pressure holding and control valve is disassembled by relaxing the Seegerings 14 and another compression spring 12 or an additional clamping ring 13 or more additional clamping rings can / can be used or replaced in a short time.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202015106096.3U DE202015106096U1 (en) | 2015-11-11 | 2015-11-11 | Pressure maintenance and control valve |
PCT/EP2016/077428 WO2017081249A1 (en) | 2015-11-11 | 2016-11-11 | Pressure-maintaining and regulating valve |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3374676A1 true EP3374676A1 (en) | 2018-09-19 |
Family
ID=55486229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16805982.2A Pending EP3374676A1 (en) | 2015-11-11 | 2016-11-11 | Pressure-maintaining and regulating valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180356844A1 (en) |
EP (1) | EP3374676A1 (en) |
CN (1) | CN108700212A (en) |
DE (1) | DE202015106096U1 (en) |
WO (1) | WO2017081249A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202018106088U1 (en) | 2018-10-24 | 2018-11-16 | Anni Hjorth Blum | Mixing and dosing device for mixing and dosing of liquid chemicals |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2254209A (en) * | 1941-09-02 | Valve | ||
US2005931A (en) * | 1933-07-08 | 1935-06-25 | Bastian Blessing Co | Safety valve |
GB1128164A (en) * | 1965-02-17 | 1968-09-25 | Bonser Engineering Ltd | Improvements in or relating to fluid flow control valves |
DE2760368C2 (en) * | 1977-12-30 | 1987-10-01 | The Coca-Cola Co., Atlanta, Ga., Us | |
GB9322554D0 (en) * | 1993-11-02 | 1993-12-22 | Raychem Sa Nv | Environmental sealing |
DE9407952U1 (en) | 1994-05-13 | 1994-07-14 | ASV Stübbe GmbH & Co KG, 32602 Vlotho | Pressure control valve |
DE10148960A1 (en) * | 2000-10-06 | 2002-04-11 | Luk Fahrzeug Hydraulik | Pressure relief valve has cylindrical valve component and on side facing sealing seat has suitable recess by means of which insert with base element for elastomer coating is fitted |
US9328836B2 (en) * | 2009-11-12 | 2016-05-03 | Schrader Electronics Ltd. | Pressure regulator valve seals, systems and methods |
EP2833033B1 (en) * | 2013-08-01 | 2016-06-22 | C.R.F. Società Consortile per Azioni | Electrically actuated valve having two ways and three positions |
CN203718049U (en) * | 2014-02-25 | 2014-07-16 | 浙江超超安全阀制造有限公司 | Straight one-way valve |
-
2015
- 2015-11-11 DE DE202015106096.3U patent/DE202015106096U1/en not_active Expired - Lifetime
-
2016
- 2016-11-11 WO PCT/EP2016/077428 patent/WO2017081249A1/en active Application Filing
- 2016-11-11 US US15/774,991 patent/US20180356844A1/en not_active Abandoned
- 2016-11-11 EP EP16805982.2A patent/EP3374676A1/en active Pending
- 2016-11-11 CN CN201680078599.8A patent/CN108700212A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2017081249A1 (en) | 2017-05-18 |
CN108700212A (en) | 2018-10-23 |
DE202015106096U1 (en) | 2016-02-19 |
US20180356844A1 (en) | 2018-12-13 |
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DAV | Request for validation of the european patent (deleted) | ||
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