SU788083A1

SU788083A1 - Thermoregulator

Info

Publication number: SU788083A1
Application number: SU772502609A
Authority: SU
Inventors: Илья Моисеевич Блинчевский
Original assignee: Предприятие П/Я Г-4090
Priority date: 1977-07-05
Filing date: 1977-07-05
Publication date: 1980-12-15

Description

Изобретение относится к теплотех-т нике и может быть использовано, например; в системах терморегулирования радиоэлектронной аппаратуры.The invention relates to heat engineering and can be used, for example; in systems of thermoregulation of electronic equipment.

Известен терморегулятор, выполнен- 5 ный в виде тепловой трубы с неконденсирующимся газом [1 ].Known temperature controller, made in the form of a heat pipe with non-condensing gas [1].

Наиболее близким к изобретению является терморегулятор, содержащий тепловую трубу, на внутренней стенке »0 которой размещена капиллярная структура, с установленным в зоне подвода тепла термочувствительным элементом, и регулирующий орган [2^|.Closest to the invention is a thermostat containing a heat pipe, on the inner wall "0 of which a capillary structure is placed, with a heat-sensitive element installed in the heat supply zone, and a regulating body [2 ^ |.

Недостатком этого терморегулято- 15 ра является узкий температурный диапазон регулирования.The disadvantage of this thermostat is a narrow temperature range of regulation.

Цель изобретения - расширение диапазона регулирования терморегулятора . 20The purpose of the invention is the expansion of the range of regulation of the temperature regulator. 20

Цель достигается тем, что регулирующий орган выполнен в виде установленной в зоне отвода тепла золотниковой пары, состоящей из связанного с термочувствительным элементом труб- 25 чатого плунжера и втулки, снабженной кольцевыьш ребрами, разделяющими тепловую трубу на отсеки,соединенные с полостью трубчатого плунжера через выполеннные на цилиндрических поверх-30 ностях втулки и плунжера отверстия, причем ширина отверстия в плунжере в первом отсеке равна ширине соответствующего отверстия во втулке, а в каждом последующем - больше ширины соответствующего отверстия во втулке на ширину отверстия в плунжере предыдущего отсека.The goal is achieved in that the regulatory body is made in the form of a spool pair installed in the heat removal zone, consisting of a tubular plunger connected to a heat-sensitive element and a sleeve provided with annular ribs dividing the heat pipe into compartments connected to the tubular plunger cavity through cylindrical surfaces of the sleeve and the plunger of the hole, the width of the hole in the plunger in the first compartment being equal to the width of the corresponding hole in the sleeve, and in each subsequent more than the width of tvetstvuyuschego holes in the sleeve in the hole width in the plunger of the previous compartment.

На фиг.1 показан терморегулятор, продольный разрез; на фиг.2 - разрез А-А на фиг.1.Figure 1 shows a temperature regulator, a longitudinal section; figure 2 is a section aa in figure 1.

В терморегуляторе внутренние стенки оболочки тепловой трубы 1 покрыты насыщенной жидким теплоносителем капиллярной структурой 2. В тепловой трубе размещен термочувствительный элемент 3, соединенный с помощью штока 4 и спиц 5 с плунжером 6 золотниковой пары. Втулка золотника 7 снабжена кольцевыми выступами 8, которые делят эону 9 отвода тепла терморегулятора на отсеки 1012. Тепло подводится к терморегулятору на участке 13. Каждый из отсеков может быть сообщен с паровым каналом 14 тепловой трубы через поперечные ряды отверстий 15 и 16 во втулке и плунжере золотниковой пары. Для предотвращения заполнения жидкостью отсеков при закрытых отверс тиях во втулке предусмотрен компенсирующий капиллярно-пористый: накопитель 17.In the thermostat, the inner walls of the shell of the heat pipe 1 are covered with a capillary structure 2 saturated with a liquid heat carrier. The heat-sensitive element 3 is placed in the heat pipe, connected by means of a rod 4 and spokes 5 to a plunger 6 of a spool pair. The spool sleeve 7 is provided with annular projections 8, which divide the aeon 9 for heat removal of the thermostat into compartments 1012. Heat is supplied to the thermostat in section 13. Each of the compartments can be communicated with the steam channel 14 of the heat pipe through the transverse rows of holes 15 and 16 in the sleeve and plunger spool pair. To prevent filling of the compartments with liquid during closed openings, a compensating capillary-porous: accumulator 17 is provided in the sleeve.

Терморегулятор работает следующим образом.The temperature controller works as follows.

За счет тепла, подведенного на участке 13, испаряется жидкость, насыщающая капиллярную структуру 2, а ее пар, проходя по каналу 14 и через отверстия 16 и 15, конденсируется на участке 9. Конденсат затем по капиллярной структуре '2 возвращается к зоне 13 Подвода тепла.Due to the heat supplied in section 13, the liquid is saturated which saturates the capillary structure 2, and its vapor, passing through the channel 14 and through the openings 16 and 15, condenses in section 9. The condensate then returns to the heat supply zone 13 through the capillary structure '2 .

При уменьшении теплового потока ₍или снижении температуры в зоне отвода тепла уменьшается температура термочувствительного элемента 3. Сжимаясь, элемент 3 перемещает вправо плунжер 6. При перемещении, равном ширине окон во втулке, эти окна перекрываются плунжером, и пар перестает поступать в отсек 10. Итак, отсек практически выключается, площадь отвода тепла терморегулятора уменьшается на 1/3, а его термическое сопротивление увеличивается. Эти компенсирует снижение теплового потока или температуры теплоотводящей среды и позволяет поддерживать температуру в зоне подвода тепла терморегулятора близкой к постоянной. Таким образом, термическое сопротивление терморегулятора изменяется как за счет изменения перепада давлений Парового потока, так и за счет изменения площади отвода тепла.When the heat flux decreases ₍ or the temperature in the heat removal zone decreases), the temperature of the thermosensitive element 3 decreases. By compressing, element 3 moves the plunger 6 to the right. When moving equal to the width of the windows in the sleeve, these windows overlap with the plunger and steam ceases to flow into compartment 10. So , the compartment practically turns off, the area of heat dissipation of the thermostat decreases by 1/3, and its thermal resistance increases, which compensates for the decrease in heat flux or temperature of the heat-removing medium and allows maintaining Vat temperature in the heat input region thermostat nearly constant. Thus, the thermal resistance varies as the thermostat due to changes in differential pressure vapor stream, and by changing the heat dissipation area.

Благодаря этому терморегулятор позволяет осуществлять регулирование 35 в более широком по сравнению с известным интервалом изменения высших параметров.Due to this, the thermostat allows you to control 35 in a wider compared with the known interval of changes in higher parameters.

Claims

The invention relates to heat engineering and can be used, for example; in thermal control systems of electronic equipment. A thermostat known as a heat pipe with a non-condensable gas 1 j is known. Closest to the invention is a thermostat containing a heat pipe, on the inner wall of which a capillary structure is placed, with the installed & the heat supply zone is a thermosensitive element, and regulator 2. The disadvantage of this regulator is the narrow temperature range of regulation. The purpose of the invention is to expand the range of regulation of the thermostat. The goal is achieved by the fact that the regulator is made in the form of a spool pair installed in the heat removal zone, consisting of a pipe plunger and a sleeve connected to a temperature-sensitive element and provided with annular ribs separating the heat pipe into compartments connected to the cavity of the pipe plunger through the cylindrical surfaces of the bushing and plunger bore, with the width of the bore in the plunger in the first compartment equal to the width of the corresponding bore in the bushing, and in each follower — more than the width with tvetstvuyuschego openings in the hub to the width of the apertures in the plunger of the previous compartment. Figure 1 shows the thermostat, a longitudinal section in figure 2 - section AA in figure 1. In the thermoregulator, the inner walls of the shell of the heat pipe 1 are covered with a capillary structure 2 saturated with a liquid heat carrier. In the heat pipe there is a temperature-sensitive element 3 connected by means of the stem 4 and the spokes 5 to the plunger 6 of the spool pair. The sleeve of the valve 7 is provided with annular protrusions 8, which divide the zone 9 of the heat control of the thermostat into compartments 1012. Heat is supplied to the thermostat at section 13. Each of the compartments can be connected to the steam channel 14 of the heat pipe through transverse rows of holes 15 and 16 in the sleeve and plulger of the spool pair. In order to prevent the liquid from filling the compartments with closed holes, a compensating capillary-porous storage ring 17 is provided in the sleeve. Due to the heat / supply in section 13, the liquid that saturates the capillary structure 2 evaporates, and its vapor, the passage through the channel 14 and through the openings 16 and 15, condenses in section 9. The condensate then returns to zone 13 through the capillary structure 2 heat supply. When the heat flux decreases (OR the temperature decreases in the heat removal zone, the temperature of the thermosensitive element 3 decreases. Compressing, element 3 moves the plunger 6 to the right. When moving equal to the width of the windows in the sleeve, these windows overlap the plunger and the steam stops flowing into the compartment 10, Thus, the compartment is practically turned off, the heat control surface of the thermostat is reduced by 1/3, and its thermal resistance increases. This compensates for the decrease in heat flow or temperature of the heat dissipating medium and allows live the heat sink in the heat supply zone of the thermostat close to constant. Thus, the thermal resistance of the thermostat changes both by changing the pressure drop of the Steam stream and by changing the heat removal area.This allows the thermostat to regulate wider in comparison with the known interval of change of the higher parameters. Invention A thermosensitive element in the heat supply zone, and a regulator, characterized in that, in order to expand the range of thermostat control, the regulator is made in the form of a spool pair installed in the heat removal zone, consisting of a tubular plunger associated with the thermosensitive element and bushings provided with annular ribs dividing the heat pipe into compartments connected to the cavity of the tubular plunger through holes made on the cylindrical surfaces of the bushings and plunger, The width of the hole in the plunger in the first compartment is equal to the width of the corresponding hole in the sleeve, and in each subsequent hole is greater than the width of the corresponding hole in the sleeve by the width of the hole in the plunger of the previous compartment. Sources of information taken into account in the examination 1. US patent 3,613,773, cl. 165-32, publ. 1971.

2. US patent number 3485203, cl. 165-32, publ. 1970 (prototype)

7 6 16 ff 8 / / A / L / //) / 2 S 5 2 / / / / - / 4- / 7 J / / /