DE1099296B - Valve seat, especially for rotary flush pumps - Google Patents
Valve seat, especially for rotary flush pumpsInfo
- Publication number
- DE1099296B DE1099296B DEM43024A DEM0043024A DE1099296B DE 1099296 B DE1099296 B DE 1099296B DE M43024 A DEM43024 A DE M43024A DE M0043024 A DEM0043024 A DE M0043024A DE 1099296 B DE1099296 B DE 1099296B
- Authority
- DE
- Germany
- Prior art keywords
- valve seat
- seat
- housing
- rotary
- pumps
- 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
- 238000007789 sealing Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005086 pumping 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/102—Disc valves
- F04B53/1022—Disc valves having means for guiding the closure member axially
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Gasket Seals (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
- Taps Or Cocks (AREA)
Description
Ventilsitz, insbesondere für Rotary-Spülpumpen Bei Bohrungen in großen Tiefen über 2500 m treten beim Verpumpen der Bohrspülung dadurch große Schwierigkeiten auf, daß die Pumpendrücke sich steigern (von etwa 150 bis etwa 250 atü und mehr). Da die Rotary-Spülpumpen mit Hubzahlen bis zu 70 Hüben/Minute arbeiten, werden sich naturgemäß die Ventile ebenso oft öffnen und schließen.Valve seat, especially for rotary mud pumps For drilling in large When pumping the drilling fluid at depths of more than 2500 m, great difficulties arise as a result on that the pump pressures increase (from about 150 to about 250 atmospheres and more). Since the rotary flushing pumps work with strokes of up to 70 strokes / minute, naturally the valves open and close just as often.
Der Ventilsitz 1 (siehe die einzige Abbildung eines Ausführungsbeispieles) wird demnach entsprechend dem Flüssigkeitsdruck von etwa 250 atü und der daraus resultierenden Kraft von etwa 50t 70mal in der Minute mit etwa 50 t in den Kegelsitz des Pumpenkörpers getrieben.The valve seat 1 (see the only illustration of an exemplary embodiment) is accordingly the liquid pressure of about 250 atü and that from it resulting force of about 50t 70 times per minute with about 50t in the cone seat driven by the pump body.
Diese Ventilsitze sind großem Verschleiß ausgesetzt und müssen daher öfters gewechselt werden. Es treten große Schwierigkeiten beim Ausbau auf.These valve seats are exposed to great wear and must therefore be changed more often. There are great difficulties in expansion.
Mechanische Ziehvorrichtungen, die bisher verwandt wurden, konnten in den Fangteilen nicht so stark konstruiert werden, daß sie den großen Zugkräften standhielten. In der Praxis wurden in solchen Fällen verwerfliche Methoden angewandt.Mechanical pulling devices previously used could in the catch parts are not so strongly constructed that they can withstand the large tensile forces withstood. In practice, reprehensible methods have been used in such cases.
Der Ventilsitz wurde mittels Autogenflamme im Innenteil erwärmt, bis der Wärmeübergang in der Sitzfläche des Pumpenkörperteiles erreicht war und eine Dehnung auftrat. Anschließend wurde der Ventilsitz abgeschreckt. Dadurch löste sich der Sitz in vielen Fällen.The inside of the valve seat was heated by an oxy-fuel flame until the heat transfer in the seat of the pump body part was achieved and one Elongation occurred. The valve seat was then quenched. This dissolved the seat in many cases.
Hatte man mit dieser Methode keinen Erfolg, so wurde kurzerhand der Ventilsitz mit dem Schneidbrenner zerschnitten. Dabei wurde dann in den meisten Fällen der Kegelsitz des Pumpenkörpers beschädigt, wodurch die ganze Pumpe .ausfiel.If this method was unsuccessful, it quickly became the Cut the valve seat with the cutting torch. It was then in most of the The conical seat of the pump body was damaged, causing the entire pump to fail.
Da die Rotary-Spülpumpen in explosionsgefährdeten Räumen (Bohrturm) stehen, sind die beiden letztgenannten Methoden bergamtlich streng verboten.Since the rotary mud pumps in potentially explosive areas (derrick) the last two methods are strictly forbidden by the mining authorities.
Die erfindungsgemäße Anwendung des bekannten Öldruckverfahrens schließt vorstehende Nachteile der bis jetzt bekannten Methoden aus.The application of the known oil pressure method according to the invention concludes the above disadvantages of the methods known up to now.
Die Erfindung besteht darin, daß die kegelige Sitzfläche zwischen Ventilsitz und Gehäuse durch zwei selbstdichtende Dichtungen abgedichtet ist. Es ist an sich bekannt, den Ventilsitz hydraulisch aus seinem Sitz im Gehäuse herauszupressen, indem Drucköl an einer Stelle in eine Rille eingepreßt wird. Dabei kann der Druck aber nur die schmale Ringfläche der Breite derRille wirksam werden. Bei dem erfindungsgemäßen Ventilsitz wirkt der Druck des Druckmittels auf die ganze Breite der kegeligen Ringfläche zwischen den beiden Dichtungen. Die erfindungsgemäßen Ventilsitze können deshalb auch in schwierigen Fällen einwandfrei gelöst werden, auch wenn fertigungstechnische Mängel oder kleine Beschädigungen an den Sitzflächen, hervorgerufen z. B. durch unsachgemäße Wartung, vorhanden sind.The invention consists in that the tapered seat between Valve seat and housing is sealed by two self-sealing seals. It is known per se to hydraulically press the valve seat out of its seat in the housing, by forcing pressure oil into a groove at one point. In doing so, the pressure but only the narrow annular surface of the width of the groove will be effective. In the inventive Valve seat, the pressure of the pressure medium acts on the entire width of the conical ring surface between the two seals. The valve seats according to the invention can therefore can be resolved perfectly even in difficult cases, even if they are production-related Defects or minor damage to the seat surfaces, caused e.g. B. by improper maintenance.
Die erfindungsgemäße Anordnung der selbstdichtenden Dichtungen am Ventilsitz bietet größten Schutz gegen Erosion der Sitzfläche durch stark abrasive Medien auch bei hohen Drücken.The inventive arrangement of the self-sealing seals on The valve seat offers the greatest protection against erosion of the seat surface caused by highly abrasive Media even at high pressures.
In der einzigen Abbildung bedeutet 1 den Ventilsitz, 2 die Dichtungen, 3 das den Ventilsitz umgebende Gehäuse.In the single figure 1 means the valve seat, 2 the seals, 3 the housing surrounding the valve seat.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM43024A DE1099296B (en) | 1959-10-13 | 1959-10-13 | Valve seat, especially for rotary flush pumps |
| GB3427260A GB937290A (en) | 1959-10-13 | 1960-10-06 | Valve assembly, for deep drilling scavenging pumps in particular |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM43024A DE1099296B (en) | 1959-10-13 | 1959-10-13 | Valve seat, especially for rotary flush pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1099296B true DE1099296B (en) | 1961-02-09 |
Family
ID=7304541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM43024A Pending DE1099296B (en) | 1959-10-13 | 1959-10-13 | Valve seat, especially for rotary flush pumps |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1099296B (en) |
| GB (1) | GB937290A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479508A (en) * | 1982-09-29 | 1984-10-30 | George E. Failing Company | Reinforced valve member |
| DE19647027A1 (en) * | 1996-11-14 | 1998-05-28 | Danfoss As | Radiator valve housing valve with seat and closing element |
| DE19647026A1 (en) * | 1996-11-14 | 1998-05-28 | Danfoss As | Radiator valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015077252A1 (en) * | 2013-11-19 | 2015-05-28 | Amerifrac Llc | Frack pump fluid end with integrated hydraulic valve seat release |
| US10400764B2 (en) | 2016-04-15 | 2019-09-03 | S.P.M. Flow Control, Inc. | Well service valve seat removal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2271137A (en) * | 1940-02-19 | 1942-01-27 | Paul A Dewhirst | Valve seat |
| US2413869A (en) * | 1940-06-11 | 1947-01-07 | Falcon Products Inc | Valve |
-
1959
- 1959-10-13 DE DEM43024A patent/DE1099296B/en active Pending
-
1960
- 1960-10-06 GB GB3427260A patent/GB937290A/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2271137A (en) * | 1940-02-19 | 1942-01-27 | Paul A Dewhirst | Valve seat |
| US2413869A (en) * | 1940-06-11 | 1947-01-07 | Falcon Products Inc | Valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479508A (en) * | 1982-09-29 | 1984-10-30 | George E. Failing Company | Reinforced valve member |
| DE19647027A1 (en) * | 1996-11-14 | 1998-05-28 | Danfoss As | Radiator valve housing valve with seat and closing element |
| DE19647026A1 (en) * | 1996-11-14 | 1998-05-28 | Danfoss As | Radiator valve |
| EP0843117A3 (en) * | 1996-11-14 | 1998-10-07 | Danfoss A/S | Radiator valve |
| DE19647027B4 (en) * | 1996-11-14 | 2004-12-02 | Danfoss A/S | radiator valve |
Also Published As
| Publication number | Publication date |
|---|---|
| GB937290A (en) | 1963-09-18 |
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