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280 results about "Hot spring" patented technology

A hot spring is a spring produced by the emergence of geothermally heated groundwater that rises from the Earth's crust. While some of these springs contain water that is a safe temperature for bathing, others are so hot that immersion can result in an injury or death.

Spa control with improved heater management system

A spa control system that measures the flow of water through the heater of a spa and accurately reports water temperature in the spa using only one solid-state sensor in the heater. The working condition of the sensor is first determined by energizing the spa heater for a brief period of time, with the circulation pump de-energized, then quickly de-energizing the heater and watching for a heat rise at the sensor. A small rise is sufficient to proceed with the flow test. The flow rate is now determined by energizing the pump, with the heater still de-energized, and observing the rate at which the moving water cools the inside of the heater. If there is no circulation of water through the heater, the temperature of the sensor will continue to rise from the energy applied when the heater was briefly energized. This rise will be quite significant and a clear indication of a flow problem. Conversely, with normal flow, the inside of the heater will be cooled to approximately the same temperature as the spa water in just a few seconds. If the flow is found to be adequate, the heater may be energized for a normal period of time. Since, while cooling, a measured number of degrees is dropped in a measured number of seconds, a flow rate can be reported to the user as an estimate of gallons per minute. The sensor is now carefully monitored for a sudden increase in temperature, which would indicate loss of a normal flow of water. It is known that the temperature of the water in the spa will be within one or two degrees of the observed temperature at the sensor in the heater, even when the heater is energized. The water temperature can, therefore, be accurately reported to the user just from measuring the temperature of the water in the heater. The only problem with making all measurements at the heater is that the real water temperature is unknown when the pump is not running. This problem can result in short heating cycles, or create the need to run the pump several times per day just to check on the real water temperature. The present invention uses artificial intelligence to find the proper time to turn the pump back on at a time when the spa is just beginning to need heat. Any errors in finding this time are added back to subsequent calculations to make future cycles more accurate.
Owner:BALBOA WATER GRP LLC

Piston-type underwater free gas sampler and using method thereof

The invention discloses a piston-type underwater free gas sampler and a using method thereof. The piston-type underwater free gas sampler comprises an exhaust pipe, a stop valve, a fastening pressure cap, cylinder covers, a cylinder plug, a cylinder body, a handle, a piston, a gas collecting pipe and a drain pipe, wherein the cylinder covers are respectively arranged at the upper end and the lower end of the cylinder body, the piston, the gas collection pipe and the drain water are arranged on the cylinder cover at the lower end of the cylinder body, the exhaust pipe is arranged on the cylinder cover at the upper end of the cylinder body and fixed by the fastening pressure cap, and the stop valve is arranged on the exhaust pipe. In order to satisfy the sampling requirement on liquid-level bubbles, the piston-type underwater free gas sampler and the using method thereof can finish the collection of bubbles on water surface and liquid surface, and transfer and store collected gases in a special container after sampling. The invention has the advantages of simple structure and convenient use, is suitable for collecting underwater methane, underwater leaked hydrocarbon and bubbles on water surface and liquid surface of associated gases in a hot spring, and can transfer and store the collected gases in the special container.
Owner:ZHEJIANG UNIV

Anti-drowning warning equipment and warning method thereof

ActiveCN102005103ASuitable for a wide range of environmentsReduce the rate of false negatives and false positivesAlarmsMicrocontrollerHot spring
The invention discloses anti-drowning warning equipment and a warning method thereof. In the warning equipment, air flow intensity signals caused by water wave in a water area are detected by using a sensing device and converted into digital voltage signals, then water area model matching is performed by using a first microcontroller according to the digital voltage signals, whether warming signals are generated is determined according to the matching result, and the warming signals are used for indoor and outdoor audible and visual alarm through a first warning module and a second warning device of a front-end trigger device respectively; the anti-drowning warning equipment with the structure can effectively reduce the missing alarm and false alarm rate by the water area model matching of the first microcontroller and improve the safety performance, and experiments show that the safety indexes of the anti-drowning warning equipment can reach the safety indexes specified by NFP90-307 and ASTMF-2208 standards; moreover, the anti-drowning warning equipment has wide application range, and can be applied to standard swimming pools, ponds, small rivers and hot spring and environments of standard swimming pools, ponds, small rivers and hot spring under severe weather conditions.
Owner:宁波高新区英诺科技有限公司

Geothermal pulse pressure wave fracturing system and method

The invention discloses a geothermal pulse pressure wave fracturing system comprising a geothermal well, an instrument, a pulse pressure wave generator, a pressure pump and a water tank, wherein the output end of the pulse pressure wave generator is connected with one end of a pulse pressure wave control valve, a water outlet of the water tank is connected with a water inlet of the pressure pump, and a water outlet of the pressure pump is connected with one end of a water pump control valve. The invention also discloses a geothermal pulse pressure wave fracturing method which adopts a mode of combining static pressure with pulse pressure to fracture a stratum layer and clean an original geothermal channel, the static pressure is generated by the pressure pump and pressure liquid, and the pulse pressure is generated by the pulse pressure wave generator. By adopting the system and method disclosed by the invention, ultrasonic waves are superimposed to the geothermal well fracturing static pressure to generate a long-distance, large-scale, periodical and continuous pressure acting area and result in that the wall of the geothermal well is ruptured, so that a new hot spring flowing channel is formed; and the pulse pressure waves are mechanical energy waves, so that rock cracks can be further expanded until a satisfactory fracturing effect is achieved.
Owner:GANZI KANGSUN GEOTHERMAL DEV

Low Cost Multimode Calorimeter

A structure of calorimeter provides a calorimetric head (1) comprising a calorimetric cell (10) suitable for receiving a sample holding container (20) containing a sample (25) to examine. The cell (10) is arranged according to a first shield (3), or active shield. Outside the active shield (3) a second shield (4), or dynamical shield is present, which comprises a cylindrical hollow body arranged around the active shield (3) for all its length in order to provide a space (5) of determined size. Outside the active shield a thermal bath is present (not shown) at a temperature lower than the first and the second shield (3,4). The dynamic shield (4) allows an effective adjustment of the heat flux through the active shield (3) during calorimetric measures by limiting the heat flux same. In fact, in operative conditions the dynamic shield acts as thermal flywheel and keeps constant the heat flux coming from the active shield (3). More in detail, the presence of the dynamic shield (4) ensures the reduction of the temperature gradient on the active shield (3) and then on the cell (10) containing the sample (20). Furthermore, by keeping the dynamic shield (4) at a suitable temperature difference from the active shield (3), the temperature can be controlled with much less electric power than it would be necessary if the active shield (3) exchanged heat directly with the thermal bath.
Owner:CONSIGLIO NAT DELLE RICERCHE
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