SU637586A1

SU637586A1 - Thermal valve

Info

Publication number: SU637586A1
Application number: SU772507445A
Authority: SU
Inventors: Константин Николаевич Козубский; Александр Иванович Шабанов
Original assignee: Предприятие П/Я Р-6219
Priority date: 1977-07-11
Filing date: 1977-07-11
Publication date: 1978-12-15

Description

(54) ТЕРМОКЛАПАН(54) THERMAL VALVE

Изобретение относитс к элементам гидропневмоавтоматаки.This invention relates to hydropnevmo-automata elements.

Известен термоклапан, в корпусе которого установлены чувствительный элемент и упор, взаимодействующий с чувствительным элементом Г ,A thermal valve is known, in the case of which a sensitive element and an emphasis are mounted, which interact with the sensitive element G,

Известен термоклапан, в корпусе которого установлены запорный орган, чу&ствительный элемент с коэффициентом линейного расширени , меньшим чем у корпуса, и регулировочный винт 2 .A thermal valve is known, in the case of which a closure member is installed, a choke & element with a linear expansion coefficient smaller than that of the case, and an adjusting screw 2.

Недостатком известных клапанов вл етс недостаточна надежность.A disadvantage of the known valves is insufficient reliability.

Пелью изобретени вл етс повышение надежности работы.The invention is an improvement in reliability.

Поставленна цель достигаетс тем, что чувствительный элемент выполнен в виде двух сопр женных по кра м пластин, упруго изогнутых относительно попереч ной оси, а регулировочный винт установлен в одной из пластин, причем его ось направлена вдоль радиуса кривизны пластины .The goal is achieved by the fact that the sensing element is made in the form of two plates adjoining along the edges, elastically bent relative to the transverse axis, and an adjusting screw is installed in one of the plates, with its axis directed along the radius of curvature of the plate.

На чертеже изображен предлагаемый термоклапан.The drawing shows the proposed thermal valve.

Клапан состоит из корпуса, вьтолненного из верхней части 1 с седлом и нижней части 2. К седлу прижат запорный орган 3 при помоши чувствительного эле мента, состо щего из двух сопр женных по концам упруго изогнутьгх относительно поперечной оси пластин 4, 5, имеющих коэффициент линейного расширени , меньший чем у корпуса. Пластины своими концами шарнирно соединены с запорным органом 3 и нижней частью корпуса 2, В пластину 4 ввернут регулировочный винт 6, образующий с пластиной 5 заданный зазор.The valve consists of a body filled from the upper part 1 with a saddle and the lower part 2. A locking member 3 is pressed to the saddle by means of a sensitive element consisting of two elastically bent hinges along the ends of the plates 4, 5 having a linear coefficient extensions smaller than the case. The plates with their ends are pivotally connected with the locking member 3 and the lower part of the housing 2. An adjusting screw 6 is screwed into the plate 4, forming a predetermined gap with the plate 5.

Клапан работает следующим образом.The valve operates as follows.

Claims

As the temperature rises due to the difference in linear expansion coefficients, the body lengthens by a larger amount than the sensing element, however, the locking member will be pressed against the saddle by a practically constant elastic force of the sensing element. When this happens, the gap between the screw 6 and the plate 5 decreases. When the gap is fully selected, the elastic deformation of the plates 4 and 5 ceases, and the valve opens at the same time as the temperature rises. The set start opening temperature is established by screw 6 by changing the gap between it and the plate 5. Due to the significantly large gap size with the same ranges of permissible operating temperatures, the reliability of the proposed valve is significantly increased. The thermal valve, in the case of which a shut-off element is installed, a sensitive element with a linear expansion coefficient less than that of the body, and an adjusting screw differing in that, in order to increase the reliability of operation, the sensitive element is made in the form of two flanges along the edges, elastically curved relative to the transverse axis, and the adjusting screw is installed in one of the plates, and its axis is directed along the radius of curvature of the plate. Sources of information taken into account in the examination: 1.Certificate of certificate number 462957, cl. R 16 K 31/00, 1975.

2. Author's certificate number 459899, cl. F 16 K 27 / OO, 1975.