DE1425688A1 - Gate valves, especially hot wind or hot gas valves - Google Patents

Description

W. Schroeder 1425688 Wiesbaden, January 5, 1963

Leijing Str. 16 Telephone ι 5891

for patent application v. 5.1.1963 Fall 2024-

Hermann Rappold & Go. GmbH"

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Düren-Birk'esdorf, Dürener-Straße 121 Gate valves, especially hot blast or hot gas gate valves.

The invention relates to a gate valve, in particular a hot blast or hot gas valve with a cooling space provided in the valve housing and through which the coolant preferably flows. The solved with the subject invention is seen to object is to improve the cooling system of the slider to the operation thereof to ensure safety even at λ relatively high temperatures.

It is well known that with hot blast valves with a water-cooled housing that Cooling water is introduced into the cold room at approximately the lowest point and discharged at the highest point. «This type of cooling water flow is special in the case of slides that are subjected to high temperatures, inadequate, since the cooling water speed is relatively small, so that the deposition of impurities carried along with the cooling water is considerable and approaches form after a short period of operation that the Impair the cooling effect and ultimately make the housing unusable relatively quickly

This object is achieved according to the invention essentially in \ that the cooling water, as is known per se in the slider tongue cooling, is a conductive agent deflected by arranged in the cooling space of the slider and thus prolongs the coolant and increases the flow speed, furthermore in the region of the deflection for brief flushing of the cooling chamber serving compressed air or compressed water connections are arranged in the valve body. In this way, on the one hand, due to the relatively high flow velocity prevailing in the cooling room, it is avoided that impurities are deposited on the cooling water path, and on the other hand, the cooling water deflection points, which are particularly endangered by dirt deposits, can be cleaned quickly and thoroughly with the help of the flushing connections, so that an accumulation of dirt in the refrigerator compartment is removed.

909808/0132

tet, which in turn increases the service life of the slide and a perfect cooling effect with minimal coolant consumption always preserved »

• With regard to the cooling water flow, the procedure according to the invention is as follows: that the cooling water in two streams through the outer shell of the housing, approximately at the level of the central axis of the gas or wind passage opening on both sides of the same arranged nozzles to and is guided by conducting means along the outer jacket to underneath, where it is in the area the deepest point of the cooling space between the guide means that end at a distance from one another reverses to then between the guide means and the inner wall of the housing upwards to the outlet openings from the housing arranged at the highest point of the cooling space. In this case, further conducting means are advantageously provided in front of the cooling water outlet openings, the narrowed passage cross-sections for the cooling water leave free directly between the inner and outer casing of the valve body, the cross-sections being chosen so that the Cooling water flows primarily to the inner jacket of the slide valve housing cuddle up

As far as the arrangement of the flushing connections is concerned, these are appropriate in the area of the deflection points located in the deepest part of the cooling space and in the narrowed cross-sections at the cooling medium outlet arranged. Thereby one can ^ the dirt that is in these places predominantly settles, whirl up so that it is carried away by the cooling water. In some cases, in the area of the lower part provide closable dirt drainage openings through which is washed ashore with the help of the flushing system »

Details of the invention are from the description below and can be seen from the drawing, which shows an exemplary embodiment of the subject matter of the invention illustrates, namely shows

Pig. 1 a valve body equipped with the new cooling system in section across the passage opening and

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BATHROOM ORIGINAL - 3 -

Mg. 2 shows a section through the housing in the direction of the axis of the passage opening ·

In the drawing, "1" means that provided with connecting flanges 2 and 3 Valve housing, which has a cooling space 4, which is mainly around the passage opening 5 of the slide at the one with the slide tongue closed slide sealing surfaces 6 and 7 cooperating in a sealing manner along »are approximately above the central axis of the passage opening 5 on the outer jacket 8 of the housing 1 cooling water inlet nozzles 9 and 10 are arranged, one nozzle each on both sides of the passage opening 5 » The inlet nozzle 9 and 10 in turn close see inside the Cooling space 4 Xeitbleche 11 and 12, which are parallel to the outer jacket 8, the inner jacket 13 of the housing 1 extend to the deepest part of the cooling space 4 to end there at a distance from one another. Between the ends the baffles 11 and 12 is lockable through the cooling space 4 Dust blow line 14 carried out from below, which is flanked by two cleaning nozzles 15 and 16 opening into the cooling space 4. Furthermore, protrude into the deepest part of the cooling space 4 at the ends of the line Sheets 11 and 12 each have two outer sheath 9 penetrating, transversely zui Axis of the passage opening 7 directed connecting pipes 17 to 20 in such that their at a distance opposite mouth ends in Area of the cooling chamber passages 22 and 23 separated from one another by the slide tongue chamber 21.

These cold room aisles have cooling water outlet nozzles at the highest points 24 and. 25, in front of which on both sides the cold room passages 22 and 2 except for narrow gaps 26, 27 and 28, 29 shut-off guide plates 30 and 31 are arranged. Furthermore, analogous to the lower connecting pipes 17 to 20, upper connecting pipes 32 to 35 are provided with their Mündungsöiinungen are in front of the passage cross-sections 26 to 29.

To cool the housing 1, the cooling water is through the nozzle 9 and 10 introduced into the cooling space 4 and in two relatively high-speed currents between the baffles 11 and 12 and the

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BATH ORIGINAL

Outer jacket 8 of the housing 1 down into the deepest part of the cooling space 4, where the two coolant flows meet, reverse and then upwards along the inner jacket 13 of the housing 1 flow into the apex area of the refrigerator 4. There the cooling water flows accumulated in front of the diagonally attached baffles 30 and 31 and through the exposed passage cross-sections 26 to 29 to the outside and the inner jacket of the housing is directed to cling the cooling water flows mainly to the inner jacket 13 and thus into the cooling water passages 22 and 23 to be reached. After passing the narrowed passage cross-sections 26 to 29, the cooling water leaves the housing 1 through the outlet nozzles 24 and 25

From time to time you can clean the refrigerator compartment 4 from impurities, by air or water under through the pipes 17 to 20 and 32 to 35 Pressure are introduced so that the dirt that is mainly deposited at the reversal or deflection points is whirled up and swept away by the cooling water will. If necessary, you can put the flushing pipes into operation 17 to 20 open the cleaning nozzles 15 and 16 at the same time, so that the dirt that is thrown up flows off downwards.

ORfGfNAL INSPECTED

9098Ü8 / 0132

Claims (5)

-Jt- claims 1.) Gate valve, especially hot air or hot gas valve with im Valve housing provided, preferably cooling water from the coolant traversed cooling space, characterized in that the Cooling water, as is known per se for slide tongue cooling is deflected by guide means (11, 12 and 30,;> 1) arranged in the cooling space (4) of the valve housing (1) and thus the cooling water path extended and the flow rate is increased, furthermore in the area of the deflection points for brief flushing of the Cold room serving compressed air or press water connections »(17 to 20 and 32 to 35) are arranged. 2.) Gate valve according to claim 1, characterized in that on Outer jacket (8) of the housing (1) approximately at the level of the central axis of the gas or wind passage opening (5) of the slide on both sides the same cooling water inlet nozzles (9 and 10) are arranged, of which the cooling water in the cooling space along the outer jacket (8) Lead away downwardly directed conductive means (11 and 12), between the ends of which are spaced apart the cooling water in the Area of the deepest point of the cooling chamber reverses to then between the guide means (11 and 12) and the inner jacket (13) of the Housing (1) to flow upwards to the cooling water outlet nozzle (24 and 25) located at the highest point of the cooling space 3.) Gate valve according to claim 1 and 2, characterized in that that in front of the cooling water outlet mare (24 and 25) further conducting means (30 and 31) are provided, the narrowed passage cross-sections (26 to 29) for the cooling water between the inner and Leave the outer casing (13 and 8) of the housing (1) free. 909808/0132 U25688 4 «) Gate valve according to the previous claims, characterized in that that flushing connections (17 "to 20 and 32 Ms 35) at the deflection points located in the deepest part of the cooling chamber Cooling water flows and are arranged at the narrowed cross-sections (27 and 29) at the cooling water outlet. 5.) Gate valve according to the preceding claims, characterized in that that dirt removal openings (15 and 16) are provided in the area of the lower deflection points of the cooling water flows. Mr the applicant: Oöqßroeder) General Power of Attorney 74/1959 909808/0132