CS219187B1

CS219187B1 - Heating device

Info

Publication number: CS219187B1
Application number: CS532381A
Authority: CS
Inventors: Marian Blaha
Original assignee: Marian Blaha
Priority date: 1981-07-10
Filing date: 1981-07-10
Publication date: 1983-03-25

Abstract

Vynález rieši účinné vyhrievanie zmesi oleja a chladivá pre zamedzenie nadmernej absořbcie chladivá v oleji, hlavně pri nízkých teplotáchokolia v době státia kompresora. Podstatou vynálezu je vyhrievacie zariadenie (3) zmesi oleja a chladivá (4) hermetickéhokompresora podlá obr. 1 a 2 vyznačujúceho sa tým, že v plynotesnej rúrke s dnom (5), nerozoberatelne upevnenej na plášti (2), obklopenej znútra plášťa (2) zmesou oleja a chladivá (4) a smerujúcej k najnižšie položenému bodu znútra dna plášťa kompresora (2), je vyhrievacie teleso (7) obalené vodivou fóliou (6), zabezpečujúcou těsný styk s plynotesnou rúrkou s dnom (5), pričomvyhrievacie teleso je připojené k sieti pomocou připojovacích vodičov navzájom odizolovaných izolačnými krúžkami (8) na svorkovnici (9), upevněné svorníkom (12) a maticou (13) na plášti vyhrievacieho zariadenia (10) a pomocou vodičov (15) kábla (16), utěsněného vo veku (11) upchávkou (14), připojené na pomocné Jcontakty stykačovej cievky, pričom veko (11) je prichytené taktiež svorjiíkom o plášť.The invention provides an efficient heating of the oil mixture and refrigerants to prevent excessive abundance refrigerants in oil, especially at low temperatures when the compressor is stationary. The subject of the invention is a heating device (3) oil / coolant mixture (4) hermetic compressor FIG. 1 and 2 characterized in that in a gas-tight tube with bottom (5), not detachable mounted on the housing (2) surrounded by the inside of the housing (2) a mixture of oil and refrigerant (4) and directed to the lowest point of the inside of the mantle the compressor (2), the heating element (7) is wrapped a conductive foil (6) providing close contact with a gas-tight tube with bottom (5), while heating the body is connected to the network by connecting conductors insulated with each other the rings (8) on the terminal block (9) fixed with a bolt (12) and nut (13) on the heating housing the device (10) and by the cable conductors (15) (16), sealed at the lid (11) by a plug (14), connected to auxiliary contactor coil contacts wherein the lid (11) is also secured by a clamp o cloak.

Description

Vynález sa týká vyhrievacieho zariadenia hermetického chladivového kompresora na ohřev zmesi oleja a chladivá, pre zamedzenie nadmernej absorbcie chladivá v oleji, hlavně pri nízkých. teplotách kompresora, určeného pre chladiace zariadenia malého a stredného výkonu.The invention relates to a heater of a hermetic refrigerant compressor for heating an oil-coolant mixture to prevent excessive refrigerant in oil absorption, especially at low temperatures. temperatures of the compressor intended for small and medium capacity cooling equipment.

V praxi je zriáma konštrukcia vyhrievacieho zariadenia, ktoré sa skládá z rúrkového vyhrievacieho článku, obaleného v prášku kysličníka horečnatého a uloženého v medenom puzdre. Ďalší známy druh používá vyhrievacie pásy opásané na vonkajšom obvode plášťa kompresora v mieste, kde je zásoba oleja pre mazanie kompresora. jíIn practice, the construction of a heating device consisting of a tubular heating element wrapped in magnesium oxide powder and embedded in a copper housing is obvious. Another known type uses heating belts wrapped around the outer periphery of the compressor housing at a location where there is oil supply for lubricating the compressor. her

U uvedených spósobov sa teplo neodovzdává! tak, aby sa zachoval optimálny směr prúdenia ohriatej zmesi oleja a chladivá, pri ktorom by ohriate částice v spodnej časti prúdili smerom nahor. - jIn the above mentioned ways, heat is not transferred! so as to maintain the optimum flow direction of the heated oil-coolant mixture in which the heated particles at the bottom would flow upwards. - j

Vyššie uvedený nedostatok odstraňuje vyhrieva-; cie zariadenie kompresora podlá vynálezu, ktorého podstatou jé také prevedenie vyhrievaciehčj zariadenia hermetického chladivového kompreso-í ra na ohřev zmesi oleja a chladivá pre zamedzenie nadmernej absorbcie chladivá v oleji hlavně piji nízkých teplotách, ktorého vyhrievacie teleso je uložené pomocou vodívej fólie v plyňotesnéj rúrkfe s dnom, pripevnenej k plášťů kompresora nerózdjr beratefným spósobom, pričom plynotesná rúrk^ s dnom je ponořená v oleji a smeruje ku dnu plášťaThe above deficiency removes the heating; A compressor device according to the invention, which is based on the design of a heating device of a hermetic refrigerant compressor for heating an oil-coolant mixture to prevent excessive absorption of the coolant in the oil mainly at low temperatures, whose heater is supported by a conductive foil in a gas-tight tube. fixed to the compressor casings in a non-resilient manner, the bottom gas-tight pipe being immersed in oil and directed towards the bottom of the casing

Claims

Oil-refrigerant heater of a hermetic refrigerant compressor, characterized in that it consists of a gas-tight pipe (5) with a bottom, non-detachable manner mounted on the compressor casing (2), pointing towards the lowest point of the interior of the compressor casing (2) and surrounded by an oil mixture and a coolant (4), wherein the bottom of the gas-tight pipe (5) comprises a heater (7) wrapped with a conductive foil (6) ensuring intimate contact with the gas-tight compressor pipe which is almost inwardly touched at the lowest point or in close proximity.

This arrangement results in a more intense flow when heating the oil-coolant mixture, while the coolant evaporates more efficiently.

The attached drawing shows the location of a heating device according to the invention, in which FIG. 1 is the inclination of the gas-tight pipe with the bottom facing the lowest point of the bottom of the housing and in FIG. in close contact with the bottom gas-tight pipe, as well as the detailed arrangement of the heater components; its equipment.

In FIG. 1, the motor-compressor 1 is mounted in a housing 2, on which the heating device 3 of the oil-coolant mixture 4 is fixed in a non-detachable manner ¹ by means of a gas-tight pipe 5 with a bottom, shown in FIG. 2 and pointing towards the lowest point of the bottom of the compressor casing 2. In the gas-tight bottom tube 5, the heating element 7 is wrapped with conductive foil 6, the electrical connections of the body 7 being fixed to the terminal block 9 and insulated. The electrical power supply is provided by the conductors 15 of the cable 16! The bolt 12 holds the terminal block 9 and the removable lid 11 against the housing 10 of the heater 3 by means of a nut 13 screwed onto the thread on the bolt 12.

INVENTION

I (5) with a bottom, the heating element (7) being connected to the network by means of connecting wires insulated from each other by insulating rings (: 8) on the terminal block (9), which is fastened by a bolt (12) and nut (13) on the casing (10) of the heating device (3) and by means of conductors (15), the cable (16) sealed in the cover (11) by the packing (14) is connected to the auxiliary contacts of the contactor coil, the cover (11) also jacket (10).