SE124266C1

SE124266C1 -

Info

Publication number: SE124266C1
Authority: SE
Publication date: 1949-01-01

Description

Uppfinnare: S. J. V. Ortenblad. Inventor: S. J. V. Ortenblad.

FOreliggande uppfinning Iiänför sig till varmeledningsanlaggningar, vid vilka mellan en varmeledning- eller varmvattenpanna och en radiatorkrets fir inkopplad en regleringsanordning med regleringsventil f6r kontroll av dels en stigledning fran pannans topp till radiatorkretsen, dels en returledning fran radiatorkretsen till pannans botten, varvid en med returvattnet matad ejektor och ett expansionsmunstycke aro anordnade i en shuntledning Iran pannans topp till dess botten. The present invention relates to heat conduction systems, in which between a heat conduction or hot water boiler and a radiator circuit a control device with control valve is connected for controlling a riser from the top of the boiler to the radiator circuit, and a return line from the radiator circuit to the bottom of the boiler. ejector and an expansion nozzle aro arranged in a shunt line Iran boiler top to its bottom.

Genom ejektorn och expansionsmunstycket tryggas tillforsel av hett vatten fran pannans topp till dess botten i sadan mangd, att panvaggarnas nedre delar genom det avkylda returvattnet icke antaga sa lag temperatur, att kondensation av i rOkgaserna ingende vattenanga sker pa pannvfiggarna och armed korrosion pa dessa intrader. Emellertid medor expansionsmunstycket vid den f8rut foreslagna anlaggningen av detta slag en viss olagenhet, i det att expansionsmunstycket har anordnats mellan ejektorn och pannans botten och foljaktligen forbindelseledningen mellan expansionsmunstycket och pannans botten mast g8ras jamf5relsevis grov, varigenom extra kostnader i fraga om ledningsror och armatur fororsakades. Sammalunda var forhallandet med ledningen fran pannans topp till regleringsventilens hus for att erforderlig vattenmangd skulle kunna tillforas ventilen. I sjalva verket maste dessa bada pannledningar vid den f8rut fOreslagna anlaggningen utfOras med en cirka tre ganger sã stor genomloppsarea som radiatorledningarna. The ejector and expansion nozzle ensure the supply of hot water from the top of the boiler to its bottom in such an amount that the lower parts of the boiler walls through the cooled return water do not assume such a temperature that condensation of water vapor contained in the flue gases occurs on the boiler figs and armed corrosion on these inlets. However, in the case of the previously proposed installation of this kind, the expansion nozzle has a certain inequality, in that the expansion nozzle has been arranged between the ejector and the bottom of the boiler and consequently the connecting line between the expansion nozzle and the bottom of the boiler has to be made relatively rough. At the same time, the relationship was with the line from the top of the boiler to the control valve housing so that the required amount of water could be supplied to the valve. In fact, these two boiler lines at the previously proposed plant must be constructed with an throughput area approximately three times as large as the radiator lines.

Enligt foreliggande uppfinning kan denna olagenhet undanr8jas genom att expansionsmunstycket i stallet anordnas i det med pannans topp forbundna inloppet till regleringsventilens hus och omedelbart intill detta sá att ledningarna mellan panna och ventilhuset kunna utforas med mindre diameter an som annars vore erforderligt. Den tryckokning, som upptrader i cirkulationskretsen ph grund av minskningen av vattenhastigheten i expansionsmunstycket, erhalles salunda inuti sjalva ventilhuset i stallet for efter detta i ledningen till pannans botten. Ledningen Iran ventil- huset till pannans botteri kan darvid utforas med en gen.omloppsarea, som fir Mott obetyd- ligt storre an radiatorledningarnas genom- loppsarea. Motsvarande galler f Or ledningen mellan pannans topp och ventilen. Pa grund av expansionsmunstyckets mot -ventilen vid- gade tvarsnitt erhallas andock rymliga strOmningsvagar i sjalva ventilen, sa att strainningsmotstandet har blir det minsta mojliga. Cirkulationen av hett vatten mom pannkretsen är vid den enligt foreliggande uppfinning utforda anordningen med klena pannledningar i det narmaste like bra som vid den f Orut foreslagna anordningen med grovre pannledningar. According to the present invention, this malfunction can be eliminated by arranging the expansion nozzle in the stable in the inlet connected to the top of the boiler to the control valve housing and immediately adjacent to it so that the pipes between boiler and valve housing can be made smaller in diameter than would otherwise be required. The pressure increase which occurs in the circulation circuit ph due to the reduction of the water velocity in the expansion nozzle is thus obtained inside the valve housing itself in the stable and after this in the line to the bottom of the boiler. The line Iran valve housing to the boiler's butter can then be constructed with a gen. Circulation area, which for Mott is insignificantly larger than the passage area of the radiator lines. Corresponding grille f Or the line between the top of the boiler and the valve. Due to the widened cross-section of the expansion nozzle towards the valve, spacious flow waves are still obtained in the valve itself, so that the straining resistance has the least possible. The circulation of hot water around the boiler circuit is almost as good in the case of the device with small boiler lines as according to the present invention, as in the case of the proposed device with coarser boiler lines.

Ett utforingsexempel pa en anordning enligt uppfinningen är askadliggjort pa bifogade ritning, som visar en langdsektion genom regleringsventilen. An exemplary embodiment of a device according to the invention is illustrated in the accompanying drawing, which shows a longitudinal section through the control valve.

Pa ritningen betecknar 4 anslutningsstutsen for ledningen fran pannans topp, 5 anslut- ningsstutsen for radiatorkretsens stigareled- ning, 9 anslutningsstutsen for radiatorkretsens returledning, 11' anslutningsstutsen f Or ledningen till pannans botten, 50 ventilkrop- pen, 51 det i sjalva ventilkroppen utformade ejektormunstycket och 54 forbindelsen fran stutsen 4 till stutsen 11'. Den till stutsarna och 9 anslutna radiatorkretsen kan helt avstangas fran pannan. Forbindelsen 54 Or stalldigt oppen.. In the drawing, 4 the connection socket for the line from the top of the boiler, 5 the connection socket for the riser line of the radiator circuit, 9 the connection socket for the return line of the radiator circuit, 11 'the connection socket for the line to the bottom of the boiler, 50 the valve body, 51 54 the connection from the socket 4 to the socket 11 '. The radiator circuit connected to the nozzles and 9 can be completely shut off from the boiler. The connection 54 Or stably open ..

Det enligt foreliggande uppfinning mordnade expansionsmunstycket Or betecknat med 4'. Det visas anordnat sasom en sarskild rordel men kan givetvis aven vara utfort i ett stycke med stutsen 4. De till stutsarna 4' och 11' anslutna ledningsroren behova gores blott obetydligt grovre On de till stutsarna 5 och 9 anslutna ledningsroren. The expansion nozzle Or according to the present invention Or denoted by 4 '. It is shown arranged as a separate rudder part, but can of course also be made in one piece with the socket 4. The pipe tubes connected to the sockets 4 'and 11' need only be made insignificantly coarser On the pipe tubes connected to the sockets 5 and 9.

Claims

Patent claim: Thermal line system, in which a heating line or hot water boiler and radiator circuit is connected. fed ejector and an expansion nozzle are arranged in a shunt line from the top of the boiler to its bottom, characterized in that the expansion nozzle is arranged in the inlet connected to the top of the boiler to the control valve housing and immediately adjacent thereto so that the lines between the boiler and valve housing performed with smaller diameter than otherwise required. Stockholm 1949. Kona Boldr. P. A. Norstelt & Sillier 490089