37results about How to "Meeting hot water needs" patented technology

The invention belongs to the technical field of renewable energy and air conditioners and discloses a heat collection-radiation device and a refrigeration system thereof. The device comprises a support and a heat collection-radiation unit, the heat collection-radiation unit comprises a heat collection part and a radiation heat part, the heat collection part comprises a reflection mirror and a heatcollection pipe, and the reflection mirror reflects sunlight heat and accumulates the sunlight heat on the heat collection pipe for heating; the radiation heat part comprises a cooling pipe and selective radiation thin film, the selective radiation thin film transmits an electromagnetic wave, the electromagnetic wave penetrates through an atmospheric window, heat is radiated to the outer space, and the temperature in the cooling pipe is lowered. The invention further discloses the refrigeration system. The system comprises the heat collection-radiation device, an absorption-type refrigerationdevice and a cold water tank, the absorption-type refrigeration device and the cold water tank are connected with the two ends of the heat collection-radiation device respectively, during daytime, after heating of the heat collection-radiation device, the refrigeration device is driven to conduct refrigeration, and at night, the heat collection-radiation device is used for radiating heat to the outer space for refrigeration. By means of the heat collection-radiation device, the defects are overcome that sunlight cannot be used at night, and the refrigeration effect through space radiation during daytime is poor. The refrigeration process of near-zero energy consumption is achieved.

The invention discloses a control panel of a water heater. The control panel of the water heater is characterized in that a display screen comprises a first mode display module which is used for displaying a first mode state and a second mode display module which is used for displaying a second mode state, and a function key is used for switching among a first mode, a second mode and a third mode. The invention further discloses a control method of the control panel of the water heater. According to the control method of the control panel of the water heater, switching of heating modes is achieved by pressing the function key. The control method of the control panel of the water heater is characterized in that the heating modes comprise the first mode, the second mode and the third mode, wherein according to the first mode, a heating state is started according to a first heating clock and a second heating clock which are preset, the water heater enters a ready mode till the next heating clock reaches when a preset temperature is achieved through heating, and the water heater enters a power-down mode in other time after execution of the two set clocks is achieved; according to the second mode, heating is carried out again till the preset temperature is achieved after the temperature of a water tank is decreased by 10 DEG C relative to the preset temperature; according to the third mode, the water heater enters a heating process with rated power till the preset temperature value is reached, and then the water heater enters the first mode again.

The invention discloses a quick regulation and control system for output of a photovoltaic power station on the basis of cold-heat-power joint production. The quick regulation and control system is characterized in that the photovoltaic power station is provided with a hot reservoir and a cold reservoir, a refrigerating plant is mounted on the cold reservoir, a radiating pipeline which is communicated with the hot reservoir and the cold reservoir is arranged on a photovoltaic module rear panel, outlet water of the cold reservoir accesses a water inlet of the radiating pipeline, and outlet water of the radiating pipeline accesses the hot reservoir. The quick regulation and control system has the advantages that natural supply and demand difference between the output of the photovoltaic power station and load demand can be restrained by the quick regulation and control system, increase of network loss and waste of resources due to remote power transmission or discarding when supply exceeds demand can be prevented, a means for quickly regulating the power generation capacity can be provided when the supply is less than the demand, accordingly, waste of the light resources can be prevented to a certain extent, partial hot water demand of the power station and surrounding facilities can be met, and effects of comprehensively utilizing energy can be improved.

The invention discloses a phase-change-material-layered-utilization efficient heat-storage water tank and a design method thereof. The water tank is sequentially composed of a water tank liner, different-temperature-phase-change-material layers, a heat insulation layer, a water inlet, a water outlet and a pollution discharging opening from inside to outside. The phase-change materials are arranged between the water tank liner and the heat insulation layer in a layered mode, and the heat storage capacity and the heat insulation capacity of the water tank are improved through the poor energy storage performance and the poor heat-conducting performance of the phase-change materials. Every temperature difference of 3 DEG C in the perpendicular direction in the water tank is used as an interval, and the center temperature of the area is taken as a reference to select the temperature of the phase-change materials. According to the phase-change-material-layered-utilization efficient heat-storage water tank and the design method thereof, under the condition that the water storage volume of the water tank is not additionally occupied, efficient using of the phase-change materials is achieved, the heat insulation function of the heat storage water tank is improved in a certain degree, and the requirements of domestic hot water of users at different times are met.