Abstract: A bidirectional variable cross-section water-pressure bearer cycle test system for a coal mine water inrush model test, comprising a water-pressure loading portion and a water-pressure bearer portion, wherein the water-pressure loading portion has a water supply tank, a loading water pump, a water piezometer, a water control valve, a water inlet pipe, a water discharge pipe, etc., through the loaded water pressure to control the cyclic loading of the water pressure. The water-pressure bearer portion has a variable cross-section water-pressure bearer assembly and a airtight main frame variable water-level water-pressure bearer assembly.

Abstract: A bidirectional variable cross-section water-pressure bearer cycle test system for a coal mine water inrush model test, comprising a water-pressure loading portion and a water-pressure bearer portion, wherein the water-pressure loading portion has a water supply tank, a loading water pump, a water piezometer, a water control valve, a water inlet pipe, a water discharge pipe, etc., through the loaded water pressure to control the cyclic loading of the water pressure. The water-pressure bearer portion has a variable cross-section water-pressure bearer assembly and a airtight main frame variable water-level water-pressure bearer assembly.

Abstract: An energy picking-up system by using water of river, lake and sea as low-grade energy source, includes energy collecting device, energy exalting device and radiator in series. The energy collecting device includes a circuit, which is comprised of a heat collector, a low-grade heat exchanger and a diving pump. The heat collector includes a siphon tube, a drain tube and a vacuum equipment. One end of the siphon tube is placed in the heat collecting well that is located near river, lake or sea, and the other end is placed into the water of river, lake or sea. The vacuum equipment is connected with the siphon tube. One end of the drain tube is connected with the outlet of the low-grade heat exchanger, the other end is placed into or onto the water of river, lake or sea. The diving pump is positioned in the heat collecting well, and is connected with the inlet of the low-grade heat exchanger coin.

Abstract: An energy picking-up system by using water of river, lake and sea as low-grade energy source, includes energy collecting device, energy exalting device and radiator in series. The energy collecting device includes a circuit, which is comprised of a heat collector, a low-grade heat exchanger and a diving pump. The heat collector includes a siphon tube, a drain tube and a vacuum equipment. One end of the siphon tube is placed in the heat collecting well that is located near river, lake or sea, and the other end is placed into the water of river, lake or sea. The vacuum equipment is connected with the siphon tube. One end of the drain tube is connected with the outlet of the low-grade heat exchanger, the other end is placed into or onto the water of river, lake or sea. The diving pump is positioned in the heat collecting well, and is connected with the inlet of the low-grade heat exchanger coin.

Abstract: A geothermal accumulator and a air-conditioning system using the geothermal accumulator, said geothermal accumulator includes a well pipe and a heat-accumulating pipe inserted within the well pipe coaxially, the lower portion and the upper portion of the well pipe are provided with inlet holes and outlet holes for underground water respectively, said heat-accumulating pipe is provided with a water-collecting chamber, a diffluent chamber, a heat-exchanging chamber and a water-accumulating chamber from the bottom up in sequence, the heat-exchanging chamber is provided with a plurality of axially disposed heat-exchanging pipes communicating with the diffluent chamber and water-accumulating chamber respectively, and a plurality of baffles attached to the outside of the heat-exchanging pipes, gap exists between the baffles and the heat-exchanging pipes, the upper portion of the heat-exchanging chamber is connected with a returning pipe, and the lower portion is connected with a discharging pipe, water inlet holes

Abstract: A well-water-type liquid cooling and heating resource system of the present invention, comprises a well, an energy lift device, a discharging pump and a suction pump sequentially connected by conduits. The well is separated into an upper portion and a lower portion by a baffle plate, and can supply constant temperature water at about 15° C. using as the low level cold and heat resources. The discharging tube and returning tube of the well is connected respectively with a liquid inlet tube and returning tube of the energy lift device. The suction pump is mounted at the lower portion of the well or on the baffle plate. The discharging tube of energy lift device, which is equipped with a discharge pump, is connected to a load such as an air conditioner. The load such as the air conditioner's returning tube is connected with the liquid inlet tube of a heat-exchanging pipeline coupling with the condenser of the energy lift device. The system costs lower and has no pollution.

Abstract: A liquid air conditioner of the geothermal energy type, includes a heat collector of the geothermal energy type, a heat exchanger, an energy lift device, a discharging pump, a returning pump, an air conditioner; said energy lift device consisting of a heating cycle and a heat exchanging cycle, said two cycles are sequentially connected through pipelines by a compressor, a condenser, a liquid reservoir, a drying filter, a restriction choke, an evaporator and a gas-liquid separator. A discharging tube of the heat exchanging cycle connects with the air conditioner. A returning tube of the air conditioner is connected to a liquid inlet tube of the heat exchanging cycle; a discharging tube of the heat exchanging cycle is connected to a returning tube; and a discharging tube of said heat exchanger is connected to a liquid inlet tube.

Abstract: A geothermal accumulator and a air-conditioning system using the geothermal accumulator, said geothermal accumulator includes a well pipe and a heat-accumulating pipe inserted within the well pipe coaxially, the lower portion and the upper portion of the well pipe are provided with inlet holes and outlet holes for underground water respectively, said heat-accumulating pipe is provided with a water-collecting chamber, a different chamber, a heat-exchanging chamber and a water-accumulating chamber from the bottom up in sequence, the heat-exchanging chamber is provided with a plurality of axially disposed heat-exchanging pipes communicating with the different chamber and water-accumulating chamber respectively, and a plurality of baffles attached to the outside of the heat-exchanging pipes, gap exists between the baffles and the heat-exchanging pipes, the upper portion of the heat-exchanging chamber is connected with a returning pipe, and the lower portion is connected with a discharging pipe, water inlet holes

Abstract: A well-water-type liquid cooling and heating resource system of the present invention, comprises a well, an energy lift device, a discharging pump and a suction pump sequentially connected by conduits. The well is separated into an upper portion and a lower portion by a baffle plate, and can supply constant temperature water at about 15° C. using as the low level cold and heat resources. The discharging tube and returning tube of the well is connected respectively with a liquid inlet tube and returning tube of the energy lift device. The suction pump is mounted at the lower portion of the well or on the baffle plate. The discharging tube of energy lift device, which is equipped with a discharge pump, is connected to a load such as an air conditioner. The load such as the air conditioner's returning tube is connected with the liquid inlet tube of a heat-exchanging pipeline coupling with the condenser of the energy lift device. The system costs lower and has no pollution.

Abstract: A liquid air conditioner of geothermal energy type, wherein comprises a heat collector (1) of geothermal energy type, a heat exchanger (2), an energy lift device (3), a discharging pump (4), a returning pump (5), an air conditioner (6); said energy lift device consisting of a heating cycle (30) and a heat exchanging cycle (38), said two cycles are sequentially connected through pipelines by a compressor (31), a condenser (32), a liquid reservoir (33), a drying filter (34), a restriction choke (35), an evaporator (36) and a gas-liquid separator (37); Discharging tube (32a) of the heat exchanging cycle connects with air conditioner (6). Returning tube (103) of air conditioner connecting to a liquid inlet tube (32b) of heat exchanging cycle (38); discharging tube (36a) of the heat exchanging cycle connecting to a returning tube (22b); discharging tube (22a) of said heat exchanger (2) connecting to liquid inlet tube (36b); is used for in-door cooling and heating.