POWERLESS HOT WATER PUMPING APPARATUS

• US 20110315252A1
• Filed: 03/08/2010
• Published: 12/29/2011
• Est. Priority Date: 03/09/2009
• Status: Abandoned Application

• Current Assignee: Gyu Shik Yang
• Original Assignee: Gyu Shik Yang
• Inventors: OH, Heoyn Oh
• Application Number:
  US13/255,904
• Publication Number:
  US 20110315252A1
• Time in Patent Office: Days
• US Class Current: 137/564
• CPC Class Codes: F04B 19/24 Pumping by heat expansion of pumped fluid
• CPC Class Codes: F24D 1/02 operating with live steam F24D1/005 takes precedence
• CPC Class Codes: F24D 3/00 Hot-water central heating systems district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00
• CPC Class Codes: F24H 1/142 using electric energy supply
• CPC Class Codes: Y02B 30/00 Energy efficient heating, ventilation or air conditioning [HVAC]
• CPC Class Codes: Y10T 137/85962 With thermal circulating means [thermo-siphons]

Abstract

The present invention relates to a powerless hot water pumping apparatus which receives cold water through a supply pipe equipped with a backflow prevention check valve, and which generates hot water and powerlessly discharges the hot water through a discharge pipe. The powerless hot water pumping apparatus comprises an electric heater which generates heat when supplied with electric power; an upper cylinder which accommodates the electric heater therein, to the top of which the supply pipe is connected, wherein a steam generating space of a predetermined size is interposed between the inner surface of the upper cylinder and the electric heater; and a lower cylinder which is arranged beneath the upper cylinder, the top of which is in communication with the bottom of the upper cylinder through a connection passage, and to the bottom of the discharge pipe is connected. Hot water generated in the lower cylinder is automatically discharged by the steam pressure which is generated in the steam generating space of the upper cylinder by means of the heat generated by the electric heater.

Claims

1. A powerless hot water pumping apparatus 1 which receives cold water through a supply pipe 3 equipped with a backflow prevention check valve 4 and generates hot water and powerlessly discharges the hot water through a discharge pipe 5, the apparatus comprising:

an electric heater 40 which generates heat when supplied with electric power;

an upper cylinder 10 which accommodates the electric heater 40 therein, to the top of which the supply pipe 3 is connected, wherein a steam generating space 12 of a predetermined size is interposed between an inner surface of the upper cylinder 10 and the electric heater 40;

a lower cylinder 20 which is arranged beneath the upper cylinder 10, the top of which is in communication with the bottom of the upper cylinder 10 through a connection passage 30, and to the bottom of the discharge pipe 5 is connected, wherein

hot water generated in the lower cylinder 20 is automatically discharged by the steam pressure which is generated in the steam generating space 12 of the upper cylinder 10 by means of the heat generated by the electric heater 40.

2. The apparatus according to claim 1, wherein the connection passage 30 enables a communication between a central part of the bottom of the upper cylinder 10 and a central part of the top of the lower cylinder 20.

3. The apparatus according to claim 1, further comprising first and second control sensors 50a and 50b which are provided in an external surface of the upper cylinder 10 and an external surface of the lower cylinder 20, respectively, and sense temperature, and shut off power supplied to the electric heater 40 if the temperature exceeds a set temperature.