CS258642B1 - Pressure medium controlled pressure valve - Google Patents
Pressure medium controlled pressure valve Download PDFInfo
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- CS258642B1 CS258642B1 CS869947A CS994786A CS258642B1 CS 258642 B1 CS258642 B1 CS 258642B1 CS 869947 A CS869947 A CS 869947A CS 994786 A CS994786 A CS 994786A CS 258642 B1 CS258642 B1 CS 258642B1
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Abstract
Patný ventil ovládaný tlakovým médiom, najma pre uzatváranie spodných výpustí nádrží cisternových prepravníkov, pri ktorom cieíom usporiadania jeho jednotlivých prvkov je zabezpečit spolahlivú funkciu bez závislosti na množstve jemných nečistot obsiahnutých v pracovnej kvapaline, ktorý pozostáva z telesa ventilu, ktoré je spojené s vodítkom klapky a ovládacím valcom, klapky, pružiny a tiahla, pričom medzi prírubu ovládacieho valca a prírubu telesa ventilu je vložená membrána, spojená s piestom, ktorý je tiahlom s klbom spojený s klapkou, ktorá je umiestnená medzi sedlom klapky a pružinou, umiestnenou medzi vodítkom "klapky a klapkou, pričom sedlo klapky je vložené medzi vodítko klapky a teleso ventilu.A foot valve operated by a pressure medium, in particular for closing the bottom outlets of tank containers, in which the purpose of the arrangement of its individual elements is to ensure reliable function regardless of the amount of fine impurities contained in the working fluid, which consists of a valve body, which is connected to the flap guide and the control cylinder, a flap, a spring and a rod, wherein a membrane is inserted between the flange of the control cylinder and the flange of the valve body, connected to a piston, which is connected to the flap by a rod with a joint, which is located between the flap seat and the spring, located between the flap guide and the flap, wherein the flap seat is inserted between the flap guide and the valve body.
Description
Vynález rieši pátný ventil ovládaný tlakovým médiom, najma pre uzatváranie spodných výpustí nádrží cisternových prepravníkov, pri ktorom cieiom usporiadania jeho jednotlivých prvkov je zabezpečit spo1'ahlivú funkciu bez závislosti na množstve jemných nečistot obsiahnutých v pracovnej kvapaline.The invention provides a fifth valve operated by a pressurized medium, in particular for closing the lower outlets of tank containers, in which the purpose of the arrangement of its individual elements is to ensure a reliable function regardless of the amount of fine impurities contained in the working fluid.
Pri doterajších patných ventiloch ovládaných tlakovým médiom sa pre zníženie ovládacích sil na klapke privádzal tlak pracovnej kvapaliny aj nad ňu a tak vznikol nad klapkou tlakový priestor, ktorý bolo třeba těsnit voči posúvajúcej sa klapke. Tesnenie bolo vyhotovené pomocou U manžiet a usporiadanie si vyžadovalo přesné vedenie klapky. Jemné nečistoty obsiahnuté v pracovnej kvapaline sa usadzovali v okolí tesniacich U manžiet, ktoré boli tiež narušované erozívnym vplyvom pracovnej kvapaliny. Tak dochádzalo postupné ku znehybneniu klapky. Podobné dochádzalo ku znehybneniu piestu ovládacieho valca, ktorého piestnica bola těsněná O krúžkami. V oboch prípadoch dochádza ku zlyhaniu funkcie patného ventilu.In the existing foot valves controlled by the pressure medium, the pressure of the working fluid was also applied above the damper to reduce the actuating forces on the damper, thus creating a pressure space above the damper that had to be sealed against the sliding damper. The gasket was made using U-cuffs and the arrangement required precise flap guidance. The fine impurities contained in the working fluid were deposited around the sealing U-cuffs, which were also disturbed by the erosive influence of the working fluid. Thus, the flap was gradually immobilized. Similarly, the piston of the control cylinder, whose piston was sealed with O rings, was immobilized. In both cases the function of the foot valve fails.
Uvedené nevýhody odstraňuje patný ventil ovládaný tlakovým médiom pódia vynálezu, najma pre uzatváranie spodných výpustí nádrží cisternových prepravníkov pozostávajúci z telesa ventilu, ktoré je spojené s vodítkom klapky a ovládacím valcom, klapky, pružiny a tiahla, ktorého podstata spočívá v tom, že medzi prírubu ovládacieho valca a prírubu telesa ventilu je vložená membrána, ktorá je spojená s piestom, ktorý je tiahlom s klbom spojený s klapkou, ktorá je umiestnená medzi sedlom klapky a pružinou umiestnenou medzi vodítkom klapky a klapkou, pričom sedlo klapky je vložené medzi vodítko klapky a teleso ventilu.The above-mentioned disadvantages are overcome by a pressurized valve operated by the pressure medium according to the invention, in particular for closing the bottom outlets of tank containers consisting of a valve body which is connected to the damper guide and actuating cylinder, damper, spring and rod. the valve body and the flange of the valve body are interposed with a diaphragm which is connected to a piston which is connected to the flap by means of a joint with a flap, which is located between the flap seat and the spring located between the flap guide and flap; .
Výhodou riešenia pódia vynálezu je, že nad klapkou nie je tlakový priestor a pre zníženie ovládacích sil na klapke slúži piest umiestnený v telese ventilu, ktorý je súčasne piestom ovládacieho valca. Membrána je umiestnená pod piestom a odděluje priestor telesa ventilu od priestoru ovládacieho valca. Týmto usporiadaním jednotlivých prvkov ventilu nevznikne potřeba těsnit pohyblivé časti voči pracovnej kvapaline a tak je zabezpečená spoiahlivá funkcia bez závislosti na množstve jemných nečistot obsiahnutých v pracovnej kvapaline. Spolehlivost ventilu je závislá na detailnom riešení priestoru vymedzeného pre pohyb membrány a kvalitě materiálu vlastnej membrány.An advantage of the solution according to the invention is that there is no pressure space above the flap and that a piston located in the valve body, which is simultaneously a piston of the control cylinder, serves to reduce the actuating forces on the flap. The diaphragm is located below the piston and separates the valve body space from the control cylinder space. This arrangement of the individual valve elements avoids the need to seal the moving parts against the working fluid and thus ensures a reliable function regardless of the amount of fine impurities contained in the working fluid. The reliability of the valve depends on the detailed design of the space defined for the movement of the diaphragm and the material quality of the diaphragm itself.
Na priloženom výkrese je znázorněné usporiadanie jednotlivých prvkov pátného ventilu ovládaného tlakovým médiom pódia vynálezu. Ventil pozostáva z telesa 1 ventilu, ktoré je spojené s vodítkom 2 klapky 3 a ovládacím valcom 9, klapky 3, pružiny 10 a tiahla 5, pričom medzi prírubu 11 ovládacieho valca 9 a prírubu 12 telesa 1 ventilu je vložená membrána 8, spojená s piestom 7, ktorý je tiahlom 5 s klbom 6 spojený s klapkou 3, ktorá je umiestnená medzi sedlom 4 klapky 3 a pružinou 10, umiestnenou medzi vodítkom 2 klapky 3 a klapkou 3, pričom sedlo 4 klapky 3 je vložené medzi vodítko 2 klapky 3 a teleso 1 ventilu.The attached drawing shows the arrangement of the individual elements of the fifth valve controlled by the pressure medium according to the invention. The valve consists of a valve body 1 which is connected to the guide 2 of the flap 3 and the actuating cylinder 9, the flap 3, the spring 10 and the rod 5, with a diaphragm 8 connected to the piston between the flange 11 of the actuating cylinder 9 and the flange 12. 7, which is connected to a flap 3 by a rod 5 with a flap 3, which is located between the flap seat 4 and the spring 10 located between the flap guide 2 and the flap 3, the flap seat 4 being inserted between the flap guide 2 and the body 1 valve.
Pracovná kvapalina zapíňa vnútorný priestor telesa 1 ventilu. Ak nie je do ovládacieho valca 9 přivedené tlakové médium, je medzi silami, ktoré vytvára pracovná kvapalina na piest 7 a silou, ktorú vytvára na klapku 3 rovnováha a sila vytváraná pružinou 10 drží klapku 3 pritlačenú na sedlo 4 klapky 3, ventil je uzavretý. Po přivedení tlakového média do ovládacieho valca 9 sila, ktorú vyvodí tlakové médium prostredníctvom membrány 8 na piest 7 sa prenesie cez tiahlo 5 a kíb B na klapku 3, překoná silu vytváranú pružinou 10 a klapka 3 sa oddiali od sedla 4 klapky 3, ventil je otvorený. Kíb 6 medzi tiahlom 5 a klapkou 3, umožňuje výkyvný pohyb tiahla 5 voči klapke 3 v případe deštrukcie telesa 1 ventilu, čím je zabezpečené uzatvorenie priestoru nádrže pri deštrukcii telesa 1 ventilu.The working fluid engages the interior of the valve body 1. If no pressure medium is supplied to the control cylinder 9, there is a balance between the forces produced by the working fluid on the piston 7 and the force exerted on the flap 3 by the spring 10 holding the flap 3 pressed against the flap seat 4. After applying the pressure medium to the actuating cylinder 9, the force exerted by the pressure medium via the diaphragm 8 to the piston 7 is transferred through the rod 5 and the joint B to the flap 3, overcoming the spring force 10 and the flap 3 moved away from the flap seat 4. open. The joint 6 between the stem 5 and the flap 3 allows the pivoting movement of the stem 5 relative to the flap 3 in the case of destruction of the valve body 1, thereby ensuring the closure of the tank space during the destruction of the valve body 1.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS869947A CS258642B1 (en) | 1986-12-27 | 1986-12-27 | Pressure medium controlled pressure valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS869947A CS258642B1 (en) | 1986-12-27 | 1986-12-27 | Pressure medium controlled pressure valve |
Publications (2)
Publication Number | Publication Date |
---|---|
CS994786A1 CS994786A1 (en) | 1987-11-12 |
CS258642B1 true CS258642B1 (en) | 1988-09-16 |
Family
ID=5447280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS869947A CS258642B1 (en) | 1986-12-27 | 1986-12-27 | Pressure medium controlled pressure valve |
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CS (1) | CS258642B1 (en) |
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1986
- 1986-12-27 CS CS869947A patent/CS258642B1/en unknown
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CS994786A1 (en) | 1987-11-12 |
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