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Synthetic resin heat exchanger unit used for cooling tower and cooling tower utilizing heat exchanger consisting of such heat exchanger unit
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New Patents
4893669 SYNTHETIC RESIN HEAT EXCHANGER UNIT USED FOR COOLING TOWER AND COOLING TOWER UTILIZING HEAT EXCHANGER CONSISTING OF SUCH HEAT EXCHANGER UNIT Ke Kashiwada, Tadanob Muto, Tetsu Sasaki, Fujisawa, Japan assigned to Shinwa Sangyo Co Ltd The invention provides flat, thin and hollow heat exchanger units of synthetic resin make, each operating to have a cooling water fed thereto and air flowed horizontally in an air passage therebetween, thus realizing an indirect contact heat exchange between the air and the cooling water through both wall plates. The invention further relates to a crossflow cooling tower incorporating a wet heat exchanger or packing material and an indirect contact type heat exchanger operating on the aforementioned heat exchanger units.
Power is produced by a power plant using a saltwater solar pond comprising an upper windmixed layer, a halocline and a lower convective heat storage layer. The power plant includes a heat engine for utilizing heat present in the heat storage layer of the solar pond and a condenser, which preferably is cooled by liquid droplets. In accordance with a specific embodiment of the invention the power plant is positioned within the solar pond and a flash evaporator is used in the heat engine to produce steam which is supplied to a turbine connected to a generator, the heat depleted steam exiting from the turbine and being cooled by liquid droplets in a directcontact condenser. The size of the droplets is selected such that the heat extracted in the condenser penetrates the majority of the liquid content of most of the droplets.
4898003 ABSORBER-TYPE IV'r.AT PUMP
4894210 PURIFICATION OF A HYDROCARBON MIXTURE Patrick J Denny, Alan Thomas, Peter J CarneU, County Durham, United Kingdom assigned to Imperial Chemical Industries plc Desulphurization of saturated or near saturated gaseous hydrocarbon stream is egfected using a bed of a particulate adsorbent comprising zinc oxide. Condensation of the higher boiling components is avoided by heating the raw gas to a temperature at least 10 degrees C. above its dew point. This heating is effected by heat exchange with the heated desulphurized gas and by heat exchange with the combustion products of a minor part stream taken from the raw gas and/or from the desulphurized product gas stream. The absorbent particles preferably have a high BET surface area and pore volume.
4894993 METHOD OF AND APPARATUS FOR ~ D U C I N G ~ FROM SOLAR P O N I ~ Gad Assaf, Uriyel Fisher, Rehovot, Israel assigned to Solmat Systems Ltd
Fred Houghton, Paul Holmes, H ~ I , United Kingdom assigned to Foster Wheeler Energy Limited An absorber/solution pump for pumping strong concentration liquor up a pressure gradient to a vapor generator in a heat-pump system, said pump comprising a pump body defining a first vertically disposed cylinder and housing a first piston which reciprocates within said cylinder, dividing it into an upper pumping chamber and a lower working chamber, a header tank for the system strong concentration solution integral with said pump body and surmounting said pumping chamber, said header tank and said pump body being interconnected via a one-way valve which allows the strong-concentration solution to be drawn by suction and gravity into the pumping chamber, a second piston within a second cylinder which is connected to the first piston so as to reciprocate with it, said second cylinder opening at the bottom into the pumping chamber and opening at the top into the base of the header tank, and a third piston acting vertic.ally in a third cylinder which is closed at the bottom from the atmosphere but is selectively connected to the heat pump system and opens at the top into the working chamber, said third piston acting through an extension so as to reduce the loading on the underside of the first piston when the latter undergoes a return stroke.
New Patents
4893669 SYNTHETIC RESIN HEAT EXCHANGER UNIT USED FOR COOLING TOWER AND COOLING TOWER UTILIZING HEAT EXCHANGER CONSISTING OF SUCH HEAT EXCHANGER UNIT Ke Kashiwada, Tadanob Muto, Tetsu Sasaki, Fujisawa, Japan assigned to Shinwa Sangyo Co Ltd The invention provides flat, thin and hollow heat exchanger units of synthetic resin make, each operating to have a cooling water fed thereto and air flowed horizontally in an air passage therebetween, thus realizing an indirect contact heat exchange between the air and the cooling water through both wall plates. The invention further relates to a crossflow cooling tower incorporating a wet heat exchanger or packing material and an indirect contact type heat exchanger operating on the aforementioned heat exchanger units.
Power is produced by a power plant using a saltwater solar pond comprising an upper windmixed layer, a halocline and a lower convective heat storage layer. The power plant includes a heat engine for utilizing heat present in the heat storage layer of the solar pond and a condenser, which preferably is cooled by liquid droplets. In accordance with a specific embodiment of the invention the power plant is positioned within the solar pond and a flash evaporator is used in the heat engine to produce steam which is supplied to a turbine connected to a generator, the heat depleted steam exiting from the turbine and being cooled by liquid droplets in a directcontact condenser. The size of the droplets is selected such that the heat extracted in the condenser penetrates the majority of the liquid content of most of the droplets.
4898003 ABSORBER-TYPE IV'r.AT PUMP
4894210 PURIFICATION OF A HYDROCARBON MIXTURE Patrick J Denny, Alan Thomas, Peter J CarneU, County Durham, United Kingdom assigned to Imperial Chemical Industries plc Desulphurization of saturated or near saturated gaseous hydrocarbon stream is egfected using a bed of a particulate adsorbent comprising zinc oxide. Condensation of the higher boiling components is avoided by heating the raw gas to a temperature at least 10 degrees C. above its dew point. This heating is effected by heat exchange with the heated desulphurized gas and by heat exchange with the combustion products of a minor part stream taken from the raw gas and/or from the desulphurized product gas stream. The absorbent particles preferably have a high BET surface area and pore volume.
4894993 METHOD OF AND APPARATUS FOR ~ D U C I N G ~ FROM SOLAR P O N I ~ Gad Assaf, Uriyel Fisher, Rehovot, Israel assigned to Solmat Systems Ltd
Fred Houghton, Paul Holmes, H ~ I , United Kingdom assigned to Foster Wheeler Energy Limited An absorber/solution pump for pumping strong concentration liquor up a pressure gradient to a vapor generator in a heat-pump system, said pump comprising a pump body defining a first vertically disposed cylinder and housing a first piston which reciprocates within said cylinder, dividing it into an upper pumping chamber and a lower working chamber, a header tank for the system strong concentration solution integral with said pump body and surmounting said pumping chamber, said header tank and said pump body being interconnected via a one-way valve which allows the strong-concentration solution to be drawn by suction and gravity into the pumping chamber, a second piston within a second cylinder which is connected to the first piston so as to reciprocate with it, said second cylinder opening at the bottom into the pumping chamber and opening at the top into the base of the header tank, and a third piston acting vertic.ally in a third cylinder which is closed at the bottom from the atmosphere but is selectively connected to the heat pump system and opens at the top into the working chamber, said third piston acting through an extension so as to reduce the loading on the underside of the first piston when the latter undergoes a return stroke.