52results about How to "Improve cooling capacity utilization" patented technology

The invention discloses a precision temperature control type reservoir and method for a mechanical pump to drive a two-phase fluid loop. The reservoir comprises a reservoir shell, a heating device, afluid collector and a passive cooling capillary drain pipe. The fluid collector is located on the inner surface of the reservoir shell. The heating device is located on the outer side of the reservoirshell. The passive cooling capillary drain pipe structure penetrates through the reservoir shell and communicates with an external fluid loop system. When the fluid to be cooled passes through the reservoir, the fluid is sent, by the fluid collector, to the passive cooling capillary drain pipe to be cooled. According to the precision temperature control type reservoir and method for the mechanical pump to drive the two-phase fluid loop, the interior of the reservoir is cooled by adopting the heat exchange manner, the temperature control function is realized only by regulating the heating power consumption, and therefore the structure of the reservoir is remarkably simplified; meanwhile, the drain pipe can partially keep the relative cool state all the time, it is effectively avoided thatbubbles exist near the drain pipe, and it is guaranteed that the reservoir drains out the fluid phase working medium; and because the sheet metal structure is adopted for the fluid collector and a flow guiding device of the reservoir, the structural mechanical property can be obviously improved.

An efficient multistage throttling LNG device comprises a natural gas inlet pipe, an LNG storage tank, a refrigerant compressor, refrigerant separation tanks and a cold cabinet. The efficient multistage throttling LNG device is characterized in that a main heat exchanger and an auxiliary heat exchanger are arranged in the cold cabinet, the natural gas inlet pipe sequentially passes through the main heat exchanger and the auxiliary heat exchanger and then is connected with a feed inlet of the LNG storage tank, a fourth throttling valve is arranged between the auxiliary heat exchanger and the LNG storage tank, and the number of the refrigerant separation tanks is five. Cooling capacity needed by supply is achieved in a segmented mode, entropy production of the liquidation process is minimized, and efficiency approximates step-type circulation. The problems that an existing LNG device is low in utilization rate of refrigeration cycle cooling capacity, high in entropy loss of a compressor, complex in structure and the like are solved fundamentally.

The invention discloses a refrigeration cooling system under a mine. The refrigeration cooling system comprises a main roadway under the mine or a refrigerating unit of a main roadway equipment cavern, and the refrigerating unit is communicated with a first mine heat exchanging device and a second mine heat exchanging device; the refrigerating unit is a refrigeration circulating system formed by connection of a condenser, an evaporator and a compressor, and the condenser is connected with the second mine heat exchanging unit through a cooling water pump to form a closed cooling-water circulating system; the evaporator is connected with the first mine heat exchanging unit through a refrigerated water pump to form a closed refrigerated-water circulating system. The refrigeration cooling system is simple in structure, low in loss of refrigeration capacity, high in heat exchanging rate and low in operation cost. Being the novel refrigeration cooling system, the refrigeration cooling system can be widely applied to a mine cooling system.

The invention relates to the technical fields of heating, ventilating and air conditioning and energy conservation, in particular to a multi-cycle indirect evaporative cold water supply device and a cold water production method. The multi-cycle indirect evaporative cold water supply device comprises at least two cycle cold water supply devices, wherein the first cycle cold water supply device comprises a first surface air cooler, a first housing, a first evaporation refrigeration filler, a first sprinkler and a first cycle water tank; the first housing is provided with a first air inlet port; the water outlet of the first cycle water tank is connected with a first water supply pipe with a first circulating pump; the water inlet of the first sprinkler is connected with a first water return pipe. The multi-cycle indirect evaporative cold water supply device is reasonable in structure and convenient to use; by combining the second cycle cold water supply device with the first cycle cold water supply device, the height of the device can be effectively lowered; the cold energy utilization of the device can be remarkably improved; the multi-cycle indirect evaporative cold water supply device has the characteristics of being high in energy efficiency ratio, wide in field of use, economical, energy-saving, efficient and environment-friendly.