DE2016157A1 - Water-cooled gate valve - Google Patents

Description

Gate valves, such as those used, for example, for * position of the flow of highly heated air in blast furnace systems or the like are used usually with a water-cooled slide that has a hollow slide tongue provided, the inner Walls form more or less concentric channels. Water supply and drainage pipes are connected with connected to each other lying points on the peripheral wall of the slide tongue. The concentric channels are

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so arranged »that the water τοη the Uafan surface or periphery up to the middle in concentric with each other related channels can flow, whereupon it then flows τοη the middle of the Auelaßleitung. However, the Durohlauf can also be reversed A typical gate valve of this design is described in German patent 1,285,825.

Sa iat known the effectiveness of water cooling Tor all * τοη the eeaohwlndigkeit der Waaaerströaung depends · Yes, the faster the current flows, the more effective Iat the cooling. In the case of training according to the authored literature reference, there is a maximum Number of τοη winding channels provided without any dead-ending pockets can be formed, and these channels are practically comentric by two Walls formed «τοη which daa inner SnAf in the Hittelbereioh ends and everyone has a sale »the one with the Circumferential waad of the disk connected iat "

Door is relatively small shut-off valve diea just satisfactory, but with larger questions the water channels or passages become wider. The amount of water that can be air-cooled; iat through the necessary small diameter of the supply and discharge lines, so that the channels are ao wider the slower the flow through the cooling channels and the longer it is also their dwell time within the slug tongue. Even if this is partially offset by increasing the water pressure However, there are practical limits to an increase in the water pressure.

In the slide tongue according to the present invention the number of concentric channels can be increased and is not limited to two concentric partial

walls limited, but three or more such walls can be provided, whereby the water channel © im Cross-section become smaller, thereby ensuring a greater flow rate of the cooling water will. This night it is possible that there will be less water smaller sliders can be used and made possible the use of larger tongues like such of 2.40 m and more its diameter, which have a larger number of smaller canals than before was possible.

According to the invention this is achieved in that a channel or a * line is provided between the two transverse walls, which extends from the circumference up to extends to the middle area of the sole tongue an opening in the circumferential surface of the slide tongue, which is located in the channel for the outlet of the water from the upper area opens or what it does in these Inflow area if desired. Bs are at least three concentrically spaced; arranged channels forming walls are provided, each other of these Walls are connected to one of these transverse walls and they end at a distance from one another, while the alternative other wall alters the other of the said transverse » walls is connected and ends at a distance from the first transverse wall. The other of the two openings for dae Inlet and outlet water opens in the concentric ones Channel between the perimeter wall of the slug tongue and the exterior of the concentric walls. This will result in more concentric channel · formed as it was with the previously known Constructions was possible. At the same time, the casting or assembly of the device does not require any Manufacturing difficulties, and the slide tongue is only slightly heavier than the previously known.

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An exemplary embodiment of the invention is shown in the drawing and will be described in more detail below described.

The drawing represents a cross-sectional view the new drill tongue of the present invention in Connection with a gate valve.

A hollow valve tongue 1 is in the gate valve 39 arranged. The gate valve is of conventional design and has a valve housing 40 as well "In a removable cover 41 on which stuffing boxes 43 are arranged, furthermore a yoke 45" cleaning accesses $ 1 and supply lines 47 and 49 for the cooling water. Of the Structure of the gate valve · is common and is an example described in German Patent 1,285,825 the more distant arrangement and the use of the gate valve according to the present invention can be found below is.

The slide tongue 1 has a closed peripheral wall 3 bit outlet opening 5 and inlet opening 7. If it it is also possible to change the direction of flow of the water or to reverse the otherwise used coolant through the slide tongue 1, dooh at this point becomes the For the sake of clarity and brevity, the slide tongue as it is in the embodiment of the drawing is shown, described, with an outlet opening which is connected to a channel 9 coming from the inside adjoins and an inlet opening arranged next to it

The outlet opening 5 and the inlet opening 7 are opposite one another on a Durohmesser D of the slide tongue arranged. A first flow channel 9 forms the walls 13 and 11 and extends from the opening 5 up to the central area of the slide tongue. The channel 9 extends a short distance over the second

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Diameter d of the slide tongue, the wide Diameter d is assumed to be perpendicular to the first diameter S. The first wall 13 of the channel 9 preferably ends with an inwardly extending leg 15 practically parallel to the diameter d, while the second wall 11 of channel 9 spaced therefrom and extending around leg 15 and in place 19 ends, practically parallel to the Purohmeever d and spaced from the first wall 13. A pair of spaced concentric walls 21 and 27 extend from the first wall 13. The concentric wall 21 extends from the first wall 13 in the direction of the peripheral wall 3 of the slide tongue up to a position 23, at a certain distance from de * ers% fn Wall 13 and the peripheral wall 3 and continues to run on one circular path at a distance from the Uafangswand and ends at the point 25 at a distance tone of the second wall 11. The concentric wall 27 arranged at a distance therefrom likewise extends starting from the first wall 13 to the peripheral wall 3 up to a point 29, from where it is circular, namely at a distance from the peripheral wall 3 and the concentric wall 21 until Bie ends at the point 31, namely in a distance to the second wall 11 · an opposite one second concentric, spaced-apart wall between the concentric walls 21 and 27 extends away from the second wall 11 and in a spaced circular path to the point 34 where they a distance between the concentric walls 21 and 27; fin and at the point 35 at a distance from first wall 13 ends. Preferred catfish are all concentric Walls such a distance that the distance between adjacent walls of the width of the channel 9 is equivalent to. Likewise extends: sioh the second wall of the channel 9 around the leg 15 at such a distance that the distance between the leg 15 and the second

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: ■■■ - '■ "' - λ: '- ■ - ■: ■ χ ^Ί : The cooling liquid is fed into the channel 9 by means of a stroke and directed towards the outlet opening 5 and loaded into the bohiebersunge through the Bohiebersunge in a row of confluent, la Oegenatroe through-flowing paths to the Kitt · dar Bohlebersunge and then flows through the Auelaikanal 9 from behind close to the outside of the outlet opening 5.

I rinse the soles or in the WaM * wise »Operation can AualalOffnung | and inlet port be interchanged, ·· since · the inrun flow of cooling yiUssigkelt you · «the opening 5 to the middle of the Gate valve is filled and JUi assent rl see Oegenlaufatroeen aur TJafangaflKohe of Sohiebersunge flows, where you go through the opening 7 the bohieberiunge again loses. The operating mode illustrated will be However, take precautions. ,

· The new formation of a flea bug according to the present invention allows a higher * es o speed of the cooling liquid through the slide valve and therefore enables better timing of the flea bug. The chopping hole is generally made of a metallic material and preferably made of copper, which makes it heat-resistant when water is used as a cooling liquid. Bs'lo has shown that a very useful picking hole has a diameter of 914 mm, the walls being thick of 12.7 mm and the tree for the cooling liquid is about 76 mm wide. The present invention can of course be used for any size of slider, the dimensions being defined by the size. the opening of the gate valve for the tongue or other conditions. _..., ■ ..... ■ . . . , ..

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Above is a new valve tongue for use in gate valves in blast furnace gas lines has been described what concentric countercurrent flows of coolant through the valve stanchion provides through and a particularly high speed of the coolant through the tongue and thus enables a great cooling effect.

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Claims (1)

P a t e η t a ns ρ r ti ο h β 1. Water-cooled slide tongue with a circular one hollow housing with a peripheral wall and adjoining inlet and outlet openings on the Peripheral wall, the housing first and second spaced apart and forming flow channels Has walls which, starting from the one opening, extend into the central area of the slide tongue extend out and end in the central area, marked by combining the following features a) to c): a) At least two concentric walls extending from said first wall to said second wall and in end a certain distance from said second wall, the concentric Walls a distance from each other and from the peripheral wall and outward from that have central area. b) A second concentric wall extending from the second wall and in / ends a certain distance from the first wall, with the second concentric wall at the distance in the middle between the adjacent first two concentric walls is arranged 109808/1209 (ft ··· '*
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" 1 "" o) That the other of these openings eioh in the Eau «iwlsohen the Uefangutall of the disc and entrance of the coneentric Winch Offmet * 2. Water-cooled 8ohieber * unge WWh claim I, characterized in that a! Baffle is attached to the Ubfangsvand and arranged in such a way that "ie the water flow" iwieohen the opening and the Kaua iwieohen the Uafangewand and the outside " ten of these con "tore up walls against the abgeechloeeenete the koneentrieohen winds _t against the abgeechloeeenete said, the fltrCeungekanal walls forming directed. 5. Waeser-cooled slide tongue naoh claim 2, marked by a variety of conscientious walls and the smell of a similar «wide con» trie Chen wall « en »Couple. 4 · Water-cooled slide tongue old of a circular shape hollow housing with a peripheral wall, whereby the inside of the housing winds directing the current has, which are arranged so that they have a Kehreahl τοη form consistent strumingade passages, in which the direction of the current deviates in every consistent passage is changed, marked * be without it a) first and second spaced apart, the flow directing walls, which extend in a sighting transversely to the valve housing ron the Uafangswand in the inner area, where the said first and "wide winds end and" wipe a flow channel) ORIGINAL BATHROOM - 10 - 10ϋ ·· / 120 · an opening in the tJiafen robe overbunge, which opens into the canal, 4e> alternate between the eites and the etites educated iöt? ö) vtnigetQn * <white consenibii walls that * i ^ h fcreigf ^ Eretfreoken hand to _f * u Jedöon ending ii distance ear "wide Ifind out the Jconsen ^ Vände" have inen such Abetand Eueinander "that the äuöerete a distance ron ^ DERO fflfang"# ü ran4 the innermost one must make an abetand the ends of said ereten and widen t »never d) at least one more cone before Vand, the eioh kreiaf öraig γοη of the named «expanses Wall up, but ending at Ii distance : - ■■■; "■ 8u of the mentioned first wall erstr ^ ejrt« nd: ./^ "| the construction of the small walls with the conical walls,; '-' .V- ^{; ;} i »separate ianSX * divides} · - '-> V _; --- ■■■ ".;: = ■ V; e) and a “wide opening, adjacent to the first opening that ewi- ι into the hem β chen the Un catch wall and the outermost con-wall leads f 5 Hollow slide _{tongue 9,} characterized by a closed, circular interior, through inlet and outlet openings on the circumference of the slide tongue at adjacent points of a diameter of the slide tongue, through an outlet channel formed by first and second walls, and the inward tone of the Outlet opening a short distance over one / ^r . f 11 - 1098Q8 / T209 bad original The wide diameter of the mentioned flap tongue is perpendicular cu extends beyond the diameter mentioned and by a number of concentric, at a distance arranged walls spaced from the peripheral surface and from each other and arranged to provide a flow of liquid from said inlet port in neighboring concentric currents running in opposite directions in alignment with the center of the tongue and allow this slide tongue out through the outlet opening. 6. Hollow slide tongue according to claim 5 »thereby characterized in that said second wall has a larger one Length than said first wall, the first wall having an inwardly extending leg ends, practically parallel to said second diameter, while said second wall extends extends around and spaced from the leg and terminates at a distance from the first wall. 7. Hollow slide tongue according to claim 6, characterized in that a guide wall on the peripheral surface is arranged adjacent to the inlet opening such that they flow through the inlet opening to first wall executed. 8. Hollow slide tongue according to claim 6, characterized in that the width of the channel is substantially has the same dimension as the distance between said concentric walls. 9. Hollow slide tongue according to claim 8, characterized by a plurality of concentric, spaced walls, consisting of a pair " ³ ^ BAD ORIGINAL 109808/1209 -a * - ER- vo 'of said first wall toward the Ümfangsflache "stretch and in a spaced ron said peripheral surface disposed circular path which ends at a distance to the second wall and characterized by an opposite concentric wall, di concentric walls, · see between the said NPatar tretreoktjT that from the said "wide Waad and iÄ a" spaced circular path extends which ends at a distance from the first named wall " BATH ORIGINAL 109808/12 09 Blank page