Drive for Switching a Double Seat Valve

A technology of a driving device and a double-seat valve, applied in the field of driving devices, can solve the problems of insufficiency, inability to provide or provide, cost, etc., and achieve the effect of expanding the installation length

Active Publication Date: 2015-02-18
GEA TUCHENHAGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The large structural dimensions require corresponding structural space in process plants with many valves, which is in many cases not available or which leads to corresponding costs
Efforts to make the components lantern, drive and control unit compact and space-saving at least in their necessary direction of alignment with one another, ie in the direction of axial extension of the drive, have been insufficient.

Method used

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  • Drive for Switching a Double Seat Valve
  • Drive for Switching a Double Seat Valve
  • Drive for Switching a Double Seat Valve

Examples

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Embodiment Construction

[0038] The seat-cleanable double-seat valve 1 of the second valve type is in its closed position in combination with the drive device 70 according to the invention. figure 1 shown in . The double-seat valve has two closing parts 3 , 4 arranged in series and movable relative to one another, each formed as a valve seat disc, which prevent fluid from passing through the valves in the closed position of the double-seat valve 1 . The connecting opening 2c through which the body parts 2a, 2b are connected to each other overflows from one valve body part 2a, 2b of the valve body 2 into the other valve body part 2b, 2a, and the closure is not only in the closed position but also in the open position A leakage cavity 5 connected to the environment of the double-seat valve 1 is defined therein. The leakage chamber 5 is connected to the environment via at least one connection opening 3 d in the first closing part 3 , which opens into an outlet opening 3 c of a tube shaft 3 b arranged on...

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PUM

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Abstract

#CMT# # / CMT# The drive (70) has drive pistons (74,78) that are provided in valve housing (2). The pressure medium chambers (84,88) are provided in valve housing for creation of partial open positions. The drive piston (74) is moved from closed position to partially open position against open position, so that valve (1) is operated using one spool (3) and one seat plate (4) at one configuration of drive. The drive piston (78) is moved from closed position to partially open position toward open position, so that valve is operated using seat plate at other configuration of drive. #CMT#USE : # / CMT# Drive for shifting double seat valve. #CMT#ADVANTAGE : # / CMT# The double seat valve can be shifted reliably and safely. Installation space of the drive is reduced. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a sectional view of the double seat valve with drive. 1 : Valve 2 : Valve housing 3 : Spool 4 : Seat plate 70 : Drive 74,78 : Drive pistons 84,88 : Pressure medium chambers.

Description

technical field [0001] The invention relates to a drive for switching a double-seat valve, in particular a double-seat valve with a cleanable seat, which is provided with two closing parts which can move independently of each other, the closing parts between them Surrounds a leakage cavity between them, which is connected to the environment of the double-seat valve, wherein the first closing part rests on the second closing part after a partial stroke, and during its further opening movement the The second closing part is likewise shifted into the open position, the drive device comprising actuating rods for the closing part which are arranged concentrically nested in one another, which lead outwards from the valve body into the drive device and are passed through the The adjusting lever and the closing elements are additional to the open position and independently of each other, can be selectively brought respectively into a partly open position, the open position being produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/44
CPCF16K1/446F16K31/1225Y10T137/87917Y10T137/88038
Inventor J·布尔梅斯特
Owner GEA TUCHENHAGEN GMBH
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