CS218643B1

CS218643B1 - A device for improving low temperature evaporation of propanbutane

Info

Publication number: CS218643B1
Application number: CS41680A
Authority: CS
Inventors: Jozef Repaty
Original assignee: Jozef Repaty
Priority date: 1980-01-22
Filing date: 1980-01-22
Publication date: 1983-02-25

Abstract

Zariadenie na zlepšenie odparovania propanbutanu za nízkých teplót, ktorého podstatou je, že medzi zásobník a spotřebič je vradený výparník pozostávajúci z odparovacej nádoby opatrenej telesom pre vyhrievanie na požadovanú teplotu. Zariadenie je možné použiť všade tam, kde ide o malé spotřebiče propanbutanu, ktoré majú spolahlivo pracovat’ aj za nízkých teplót okolia, ako například v stavebníctveA device for improving the evaporation of propane-butane at low temperatures, the essence of which is that an evaporator consisting of an evaporation container equipped with a heating element to the required temperature is inserted between the tank and the appliance. The device can be used wherever small propane-butane appliances are concerned, which should work reliably even at low ambient temperatures, such as in the construction industry.

Description

Vynález rieši fahké přenosné zariadenie pre zlepšenie odparovania propanbutanu za nízkých teplot.The present invention provides a lightweight portable device for improving low temperature evaporation of propanbutane.

Propanbutan je zmes ethanu (5 ± 1 %), propanu (70 ± 10 %) a butanu (25 ± 12 %). Tlak pár kvapalného propanbutanu je závislý od teploty kvapaliny a je na pr. pri teplote 40 °C v rozmedzí 1,3 až 1,5 MPa a pri teplote —15 °C v rozmedzí 0,25 až 0,35 MPa. Odpařováním propanbutanu pri odbere dochádza k rychlému poklesu teploty v dósledku odčerpávania tepla kvapaline na odpař (výpamé teplo) a tým k ochladzovaniu kvapaliny až o desiatky stupňov. Tento vysoký pokles teploty tak zníži tlak pár že spotřebič je potřebné dočasné vyradiť z prevádzky.Propane-butane is a mixture of ethane (5 ± 1%), propane (70 ± 10%) and butane (25 ± 12%). The vapor pressure of the liquid propanbutane is dependent on the liquid temperature and is at right. at 40 ° C in the range of 1.3 to 1.5 MPa and at -15 ° C in the range of 0.25 to 0.35 MPa. Evaporation of the propane-butane during collection results in a rapid drop in temperature due to the heat dissipation of the liquid to the evaporator (heat evaporation) and thus to the cooling of the liquid by tens of degrees. This high temperature drop will reduce the vapor pressure that the appliance needs to be temporarily disabled.

Pre velké odběrné kapacity (cez 50 kg/h) bolí vyrobené odparovacie stanice v ktorých sa propanbutan uložený v zásobníkoch vyhrieva sálavým teplom páry, vody alebo elektřiny čím sa zaisťuje potřebný tlak vyvýjajúceho sa plynu. Avšak toto zariadenie je pre nízké odběry plynu zložité, drahé a neekonomické. Ohrievanie nádob s propanbutanom pre drobné spotřebiče (1, 2, 5, 10 a 33 kg propanbutanu) je nepřípustné.For large draw-off capacities (over 50 kg / h), the evaporation stations produced in which the propane-butane stored in the tanks is heated by the radiant heat of steam, water or electricity heals, thereby providing the necessary pressure of the emerging gas. However, this device is difficult, expensive and uneconomical for low gas sampling. It is not permitted to heat propanbutane containers for small appliances (1, 2, 5, 10 and 33 kg of propane-butane).

Podstata vynálezu spočívá v tom, že tekutý propanbutan sa zo zásobníka vedie do dostatočne vzdialeného výparníka, ktorého teplota je udržiavaná na potrebnej výške, teda dodává potřebné výpamé tplo propanbutanu. Odpařený propanbutan sa vedie cez filter k spotřebičů. Výparník móže byť vyhrievaný elektricky, horákom na vlastný plyn alebo iným spósobom. Najvhodnejším sa javíThe present invention is based on the fact that the liquid propane-butane is fed from the reservoir to a sufficiently distant evaporator, the temperature of which is maintained at the necessary height, thus providing the necessary pellet of propane-butane. Evaporated propanbutane is passed through a filter to the appliances. The evaporator may be heated electrically, by its own gas burner or by other means. It seems the most appropriate

Claims

OBJECT

An apparatus for improving the evaporation of propanbutane at low temperatures, characterized in that an evaporator consisting of an evaporator vessel (1) provided with a body (2) for heating to a desired temperature is inserted between the reservoir and the appliance. 218643 electroheating with mechanical thermostat. The filter is used to capture the micro-droplets generated by the boiling boil at higher gas withdrawals. The advantage of the device according to the invention is above all the reliability of work even at low ambient temperatures. An example of a container-evaporator-appliance assembly is shown in Figure 1. An example of an evaporator design is shown in Figure 2. The evaporator consists of an evaporator vessel 1 heated by a thermostat housing 2 and a filter 4. The liquid propane-butane enters the evaporator vessel through the inlet port 5 and the evaporated vapor is passed through the filter 4 through the outlet orifice 6 to the spout. During operation, the pressure in the reservoir will correspond to the vapor pressure corresponding to the ambient air temperature and will not decrease noticeably even with permanent gas withdrawal. The maximum possible pressure in the evaporator will be roughly equal to the pressure in the reservoir and will never stop this pressure, or when the reservoir pressure and the evaporator are equalized, further flow of liquid propanbutane to the evaporator will cease. The device is therefore safe. The device according to the invention can be used wherever small propane-butane appliances are to be used to reliably operate even at low ambient temperatures, such as in the winter construction of asphalt shaving, asphalt melting, asphalt melting of bituminous layers. even with small appliances installed at low temperatures. THE INVENTION

2. Apparatus according to claim 1, characterized in that a filter (4) is included in the outlet of the evaporator (1).

3. Apparatus according to claim 1, wherein the evaporator is thermally insulated from the outside. - 2 drawings 218 643

FIG. of -aso 218,643