SU887870A1

SU887870A1 - Cooled throttle shutter

Info

Publication number: SU887870A1
Application number: SU792795897A
Authority: SU
Inventors: Александр Петрович Харитонов
Original assignee: Предприятие П/Я М-5147
Priority date: 1979-07-12
Filing date: 1979-07-12
Publication date: 1981-12-07

Description

II

Изобретение Относитс к области арматуростроени и может быть использовано дл регулировани потоков высокотемпературных газов.The invention relates to the field of fittings and can be used to regulate the flow of high-temperature gases.

Наиболее близким к предлагаемой вл етс дроссельна заслонка с полым Запарным органом, в котором выполнены отверсти дл подвода и отвода юхлаждающей среды и установлена перегородка , посредством которой полость запорного органа разделена на две камеры с внутренними каналами, сообщенными .один с другим oтвepcтиe в перегородке tH.Closest to the proposed is a choke valve with a hollow valve body, which has holes for supplying and discharging the cooling medium and a partition is installed, through which the cavity of the valve member is divided into two chambers with internal channels communicated with one other partition in the partition wall tH.

Известное устройство не обеспечивает достаточно надежного и равномерного охлаждени , поскольку конфигураци внутренних каналов не обеспечивает строго направленного движени охлаждающей среды, в результате чего в полости заслонки неизбежно по вление застойных зон, привод щих к ее перегреву.The prior art device does not provide sufficiently reliable and uniform cooling, since the configuration of the internal channels does not ensure the strictly directed movement of the cooling medium, as a result of which the appearance of stagnant zones in the valve cavity, leading to its overheating, is inevitable.

Цель изобретени - повышение надежности и эффективности охлаждени .The purpose of the invention is to increase the reliability and efficiency of cooling.

Дл этого в заслонке внутренние каналы в камерах вьшолнены в виде плоских однозаходных сииралей,при этом отверстие, сообщающее каналы один с другим, расположено в центральной части перегородки, а отверсти дл подвода и отвода охлаждающей среды расположены по периметру To do this, in the valve, the internal channels in the chambers are made in the form of flat one-way seirals, while the hole connecting the channels with one another is located in the central part of the partition, and the holes for supplying and discharging the cooling medium are located along the perimeter

10 запорного органа.10 shut-off organ.

На фиг.1 представлена предлагаема заслонка-, на фиг.2 - то же, вид сбог ку; на фиг.З - разрез А-А на фиг.2.Figure 1 presents the proposed valve, figure 2 is the same, the view is sb ku; on fig.Z - section aa in figure 2.

Claims

The flap is made in the form of a welded 15th hollow body and consists of two concave half-disks 1, b1 between which there is a flat partition 2 with a central hole 3. The diameter of the partition is made larger than the external diameter of the half-disks, resulting in a sealing annular protrusion 4 around the perimeter of the disk. interacting with the inner surface 5 of the housing 6 of the throttle valve body. Between the partition wall and the half disk disks there are spiral katsaly 7 and 8 formed by spiral strips 9. At the periphery of the shutter, spiral channel 7, located with the incoming gas flow CTOpoiai, is connected with the inlet 10 for the cooling medium, and spiral spiral channel 8 with the output hole 11, In the central part of the valve, the spiral channels are interconnected by a hole 3 in the partition

2. At the locations of the inlet and outlet openings for the cooling medium, there are coaxially mounted hollow springs 12j. The shutter bar that is the axis of rotation works as follows. The inlet 10 serves cooling medium, for example, water, which passes through the spiral channel 7 to the center of the valve and flows through the opening 3 in the partition 2 into the spiral channel 8 through which the outlet 11 leaves the cavity of the valve. Such an embodiment of the valve provides for a more uniform cooling on both sides, since the shaking medium first enters the helix of the 1st channel, located on the side of the oncoming high-temperature gas flow, and intensively cools this side, heats itself to a higher temperature, and then through the central hole in the firing zone 04, it flows into the supporting duct located on the other side of the flap, which, due to the absence of a high-temperature gas flow on its surface, heats up less and does not require so intense cooling. The technical and economic efficiency of the invention is to increase the reliability of the valve by reducing its temperature distortions with more uniform cooling. Claims of the invention A cooled throttle valve with a hollow closure body in which holes are made dp supplying and discharging a cooling medium and a partition is installed, by means of which the cavity of the closure member is divided into two chambers with internal channels communicated with one another in the partition, characterized in that , in order to improve the reliability and efficiency of cooling, the internal channels in the chambers are made in the form of flat one-way spirals, while the hole that communicates the channels with each other, It is located in the central part of the partition, and the holes for the supply and removal of the cooling medium are located along the perimeter of the closure member. Information sources. Taken into account during the examination 1, Copyright testimony of the USSR No. 436953, cl. F 16 K 49/00, 1973.

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