40results about How to "Lower fluid temperature" patented technology

A novel system, apparatus and method of operation for use in watercraft, terrestrially bound motor vehicles and fixed based land applications where water from a live well or bait tank is withdrawn, filtered, climactically controlled and conveyed through a water conditioning unit containing in part a heat exchanging unit with a generally serpentined contour water passageway, the water passageway formed and structured in a manner to allow water, or another fluid within the passageway to abut and surround a generally serpentine form tubular conduit containing a pressurized refrigerant with the water routed within the passageway maintaining continuous contact with the conduit then exiting the heat exchanging unit returned to the live well tank or bait tank.

A fastener shield for use in a fluid flow path within a gas turbine engine for reducing fluid drag and heating generated by fluid flow over a plurality of circumferentially spaced bolts. The fastener shield has a radially-extending, downstream-facing mounting flange with a plurality of circumferentially spaced bolt holes positioned to receive respective engine mounting bolts therethrough and to attach the mounting flange to elements of the turbine engine. A curved, upstream-facing fastener shield cover is positioned in spaced-apart relation to the mounting flange for at least partially covering and separating an exposed, upstream-facing portion of the bolts from the fluid flow to thereby reduce drag and consequent heating of the bolts. A plurality of closely spaced-apart, spirally-oriented channels are formed in the fastener shield cover for deflecting the fluid flow impinging on the fastener shield cover, thereby increasing the tangential velocity and lowering the relative temperature of the fluid flow.

An active thermal management system and method for selectively warming and cooling transmission fluid in a transmission usable with a vehicular engine is provided. The active thermal management system includes a thermal sensor which measures transmission fluid temperature and signals a valve to selectively communicate transmission fluid flow into one or more discrete fluid circuits.

An active thermal management system and method for selectively warming and cooling transmission fluid in a transmission usable with a vehicular engine is provided. The active thermal management system includes a thermal sensor which measures transmission fluid temperature and signals a valve to selectively communicate transmission fluid flow into one or more discrete fluid circuits.

A boiler includes a coal pulverizer that pulverizes coal; a coal combustion unit that combusts gasified pulverized coal that has been pulverized by the coal pulverizer; a furnace that combusts gasified fuel generated by the coal combustion unit; a slag formation unit provided in an ash outlet of the coal combustion unit; means for supplying primary air, for supply of the pulverized coal; to the coal pulverizer; means for supplying secondary air, for gasified combustion, to the coal combustion unit; and means for supplying tertiary air, for gasified fuel combustion, to the furnace.

The invention discloses backward flow type air separation system and method based on the cold energy utilization of an LNG (Liquefied Natural Gas) satellite station. The invention adapts to the fluctuation of LNG dosage by adjusting the amount of cycled nitrogen, and complements the refrigerating output requirements required by the system simultaneously during the deficiency of the refrigerating output of the LNG by utilizing the method of flowing liquid nitrogen backwards. A nitrogen external circulation system is eliminated after the LNG cold energy is introduced in the air separation process, and the equipment of a nitrogen turbo-expander and a Freon refrigeration unit is omitted so that the process is simplified. The temperature of the circulation nitrogen at the outlet of a main heat exchanger is increased to 253 to 263 K from traditional 100 k around, and the problem of low temperature compression of the circulation nitrogen in the traditional system is avoided. The temperature of other flows of fluid of the main heat exchanger for cooling feeding air is reduced due to the increased temperature of the outlet of the circulation nitrogen, and the rest cold energy exchanges heat with the feeding air in front of a compressor and is exhausted after the temperature recovers to the room temperature, therefore, the temperature of the feeding air is further reduced to 273 to 280 K, and the energy consumption of the air compressor is saved.

A double acting dual stroke fluid pump with pressure assists is disclosed. First and second pistons are mounted to a common shaft which reciprocates within first and second cavities during compression and suction strokes. The second piston may have a one way valve which opens and closes during the compression and suction strokes to enable the fluid pump to force fluid out of the outlet during both the compression and suction strokes.

A double acting dual stroke fluid pump with pressure assists is disclosed. First and second pistons are mounted to a common shaft which reciprocates during compression and suction strokes. During each of the strokes, fluid is pumped out at an outlet. This is accomplished by way of a one-way valve on the second piston. The one-way valve is opened or closed depending on whether the first and second pistons are in the compression or suction strokes. Additionally, pressure from the outlet assists in traversing the first and second pistons in the compression stroke. During the suction stroke, the fluid pressure applies a force on the first piston to counteract the fluid pressure on the second piston so that a smaller spring may be used. The size requirements of the solenoid and spring are reduced. Additionally, the fluid pump provides lower pressure spikes compared to prior art fluid pumps since fluid is pumped out during both the compression and suction strokes and also provides a more even flow of fluid out of the fluid pump.

The invention relates to an aluminum alloy pressure casting workpiece multi-medium air cooling device. An axial flow fan is fixed to a fan supporting plate. The two sides of the fan supporting plate are connected to a multi-station adjustable working panel through a bolt. The multi-station adjustable working panel is fixed to the fan supporting frame through a bolt. The fan supporting plate adjusts the height and the angle of the axial flow fan by changing the connecting position of the bolt and the multi-station adjustable working panel. The upper portion of the axial flow fan communicates with an air pipe of an air cooler, or a nozzle atomizing device is additionally arranged between the axial flow fan and a pressure casting workpiece, and switching of multiple media is achieved. A workpiece table is arranged in the fan supporting frame and located under the axial flow fan. The pressure casting workpiece is fixed to the workpiece table through a locating clamp. The workpiece table isconnected with temperature measuring devices through thermocouple fixing devices. The multiple temperature measuring devices are arranged on the portion, difficult to cool, of the bottom of the pressure casting workpiece, the temperature measuring devices are connected with a thermodetector, the thermodetector transmits measured data to the computer end, and the temperature change situation of the workpiece can be monitored in real time.

A fastener shield for use in a fluid flow path within a gas turbine engine for reducing fluid drag and heating generated by fluid flow over a plurality of circumferentially spaced bolts. The fastener shield has a radially-extending, downstream-facing mounting flange with a plurality of circumferentially spaced bolt holes positioned to receive respective engine mounting bolts therethrough and to attach the mounting flange to elements of the turbine engine. A curved, upstream-facing fastener shield cover is positioned in spaced-apart relation to the mounting flange for at least partially covering and separating an exposed, upstream-facing portion of the bolts from the fluid flow to thereby reduce drag and consequent heating of the bolts. A plurality of closely spaced-apart, spirally-oriented channels are formed in the fastener shield cover for deflecting the fluid flow impinging on the fastener shield cover, thereby increasing the tangential velocity and lowering the relative temperature of the fluid flow.

A shaft-seal device for high-temperature fluid including a seal case (2) formed as a metallic cylindrical structure of a single unit and comprised of a main body portion (2a, 2b, 2c), first and second holding portions (2d, 2e), first and second partition portions (2f, 2h), a channel formation portion (2g) forming a minute annular channel (27) with the outer circumference surface of a rotary shaft (1), and an o-ring holding portion (2i). The seal case is installed in an apparatus housing (8) with first and second o-rings (2m, 2n) in between. The intra-seal case region (A1), in which sealing rings (31, 32, 41, 42, 51, 52) of mechanical seals (3, 4, 5) are provided, and the high-temperature fluid region, which is an intra-apparatus housing region (A), are partitioned by a cooling chamber (28) into and from which coolant (82) is supplied and discharged via feed / discharge coolant paths (80, 81).

A front structure 1 for a motor vehicle includes a radiator 5 of an internal combustion engine 4 and a condenser 7 of an air conditioning system 6 arranged vertically on top of each other. The radiator 5 is substantially square shaped and is located below an edge 9 of the internal-combustion engine 4, pointing in driving direction. The front end structure 1 has a low weight and a low centre of gravity. A mutual influence between the radiator 5 and the condenser 7 is avoided.

The invention provides a cryogenic propellant thermodynamic exhaust system ground integration test device and method, the cryogenic propellant thermodynamic exhaust system ground integration test device comprises a storage tank (1), a vacuum container (2), an active thermodynamic exhaust system and a passive thermodynamic exhaust system, the storage tank (1) is located in the vacuum container (2)and is fixedly connected with the inner wall of the vacuum container (2); an interlayer between the storage tank (1) and the vacuum container (2) is vacuumized through a vacuum unit (21) to simulate the outer space environment. According to the ground integration test device and method, various exhaust schemes and combinations thereof can be tested, most test structural parts in each scheme are arranged outside the storage tank, maintenance is convenient, and the design reliability is improved; structural parts such as a jet mixing device arranged in the storage tank are simple in structure and high in stability.

A shaft-seal device for high-temperature fluid including a seal case (2) formed as a metallic cylindrical structure of a single unit and comprised of a main body portion (2a, 2b, 2c), first and second holding portions (2d, 2e), first and second partition portions (2f, 2h), a channel formation portion (2g) forming a minute annular channel (27) with the outer circumference surface of a rotary shaft (1), and an o-ring holding portion (2i). The seal case is installed in an apparatus housing (8) with first and second o-rings (2m, 2n) in between. The intra-seal case region (A1), in which sealing rings (31, 32, 41, 42, 51, 52) of mechanical seals (3, 4, 5) are provided, and the high-temperature fluid region, which is an intra-apparatus housing region (A), are partitioned by a cooling chamber (28) into and from which coolant (82) is supplied and discharged via feed / discharge coolant paths (80, 81).

The invention discloses a condensation ejector which comprises an accepting chamber, a throat chamber, a mixing chamber, a dispersion chamber, a condensing chamber and an atomizing mechanism, wherein the accepting chamber is provided with a first inlet and a second inlet; one end of the throat chamber is communicated with the accepting chamber, and the throat chamber is located on the down stream of the second inlet; one end of the mixing chamber is communicated with the other end of the throat chamber, one end of the dispersion chamber is communicated with the other end of the mixing chamber, and a first outlet is formed in the other end of the dispersion chamber; the condensing chamber is arranged close to the outer side of the down stream of the mixing chamber in a surrounding mode and comprises a third inlet formed in the down stream end of the condensing chamber, a second outlet formed in the upstream of the condensing chamber, a plurality of main condensing pipes and a plurality of branch condensing pipes, one end of each of the condensing pipes extends into the mixing chamber, the extending directions of the branch condensing pipes are different, the other end of each of the branch condensing pipes is communicated with a main condensing pipe, one end of the main condensing pipe is sealed, and the other end of the main condensing pipe is communicated with the dispersion chamber through a fourth inlet in the dispersion chamber; the atomizing mechanism is provided with a plurality of nozzles formed in the position of the fourth inlet, and the atomizing mechanism is used for atomizing fluid in the main condensing pipe and spraying the fluid in the dispersion chamber.

An oil pump driving control device of a vehicle having a main oil pump (14) that is driven by a motor / generator (4) and produces a pump discharge oil to a first clutch (3), a second clutch (5) and a belt-type continuously variable transmission (6) provided on a driving force transmission line. A hybrid control module (81) is provided in this FF hybrid vehicle. The hybrid control module (81) is configured to perform a control so that during vehicle stop, the lower an ATF oil temperature is, the more the pump driving energy to drive the main oil pump (14) is decreased. With this control, consumption energy during the vehicle stop can be reduced.

The invention discloses a pump ring used for a mechanical seal, which comprises a screw-type pump; and a labyrinth seal is connected to one side of the screw-type pump. The pump ring has the advantages that the pumping capacity of the pump ring is improved, and the circulation of fluid on a seal end surface is accelerated, so that the effect of heat exchange and cooling of the seal end surface can be achieved, the temperature of fluid at the seal end surface is reduced, and the service life of the mechanical seal is prolonged.

A rotary heat exchanger includes a hub configured to be rotatably driven by a shaft, a fan including a plurality of fan blades integrally coupled to the hub and extending radially outwardly therefrom, and a heat exchanger including a plurality of heat exchanger sections. The heat exchanger includes a plurality of cooling fins for receiving air from the fan. Each of the plurality of heat exchanger sections is located between two of the plurality of fan blades. The hub, the fan, and the heat exchanger are integrally formed as a single body by a three-dimensional printing process.

The invention discloses a centrifugal pulp pump which comprises a pump shell, a pump cover, a main shaft, an impeller and a shaft seal. The main shaft, the impeller and the shaft seal are arranged inthe pump shell. The impeller comprises an impeller center plate and an impeller blade arranged on the front face of the impeller center plate. Multiple pressure reducing runners are arranged in the curved surface wall thickness of the impeller center plate from the outer side wall to the inner side in the radial direction. The back face of the impeller center plate is matched with the inner surface of the pump shell in a convex-concave manner, a liquid storage cavity is defined by the back face of the impeller center plate, the inner wall of the pump shell, the front end face of the shaft sealand the outer circumferential face of the main shaft, and the pressure reducing runners communicate with the liquid storage cavity and an inner cavity of the pump shell. The pump is high in work efficiency and capable of saving energy by 5%-8%, the phenomenon that fluid of a sealing part is heated can be avoided, and the service life of the mechanical seal is long.

The invention provides an oxygen generator, and the oxygen generator comprises a compressor suitable for compressing air; a separation device; a heat dissipation pipe which is communicated with the compressor and the separation device; and a heat conducting plate which is made of a metal material, wherein at least part of the radiating pipe is in contact with the heat conducting plate. By arranging the compressor, external air can be compressed, the pressure intensity of the air can be improved, the separation device can conveniently and effectively separate oxygen, nitrogen and other gases in the air, meanwhile, the heat dissipation pipe communicating the compressor with the separation device is attached to the metal heat conduction plate, on one hand, the metal heat conduction plate is arranged on the bottom side of the oxygen generator, and the overall heat dissipation capability of the heat condition plate is improved; on the other hand, the radiating area of the radiating pipe is further increased and the temperature of fluid in the radiating pipe is effectively reduced through the fit arrangement of the radiating pipe and the heat conducting plate, so that the radiating capacity of the oxygen generator is effectively ensured and the cost and the power consumption burden of the oxygen generator are reduced without adding external drive.

The invention discloses a magnetic refrigeration and semiconductor refrigeration combined refrigeration system. The magnetic refrigeration and semiconductor refrigeration combined refrigeration systemcomprises a hydraulic cylinder, hot-end heat exchangers, cold accumulators and a cold-end heat exchanger; the hot-end heat exchangers comprise the first hot-end heat exchanger and the second hot-endheat exchanger; the cold accumulators comprise the first cold accumulator and the second cold accumulator; one end of the hydraulic cylinder is connected with the first hot-end heat exchanger; the other end of the hydraulic cylinder is connected with the second hot-end heat exchanger; the first hot-end heat exchanger is connected with the first cold accumulator; the second hot-end heat exchanger is connected with the second cold accumulator; the first cold accumulator and the second cold accumulator are both connected with the cold-end heat exchanger; a first semiconductor refrigeration deviceis arranged between the first cold accumulator and the cold-end heat exchanger; a second semiconductor refrigeration device is arranged between the second cold accumulator and the cold-end heat exchanger; and heat exchange loops are arranged between the second semiconductor refrigeration device and the first hot-end heat exchanger, and between the first semiconductor refrigeration device and thesecond hot-end heat exchange.

The invention provides a heavy oil recovery method integrating heat injection oil production and mechanical oil production. The method includes the following concrete steps: S1. performing preparationwork; S2. placing a combined heat injection pipe column in a wellbore; S3. after placing the combined heat injection pipe column, installing an oil production tree, and implementing a heat injectionprocess after installing the oil production tree; S4. performing self-spraying production, measuring the temperature of produced fluid, and providing a basis for subsequent selection of a temperatureresistance level of a mechanical plucking machine tool; S5. placing the mechanical plucking machine tool; and S6. performing mechanical plucking. According to the method, the wellbore and a heat injection pipe column with large diameter are first placed, and then heat injection is performed; after the heat injection and the self-spraying production are completed, the heat injection pipe column isnot required to be moved, the oil production tree is not required to be removed, the mechanical plucking machine tool only needs to be connected by a continuous oil pipe, the mechanical plucking machine tool is sent to a predetermined position seat seal in the heat injection pipe column, then the mechanical plucking can be achieved, and so, the contradiction between temperature resistance of the mechanical plucking machine tool and high temperature of the heat injection oil production is solved well under existing technical conditions, and an important technical means is provided for development of heavy oil.

A soda carbonation and dispensation system and method are provided. The system includes a carbonated water pump and motor assembly operable to draw fresh water into carbonator tanks and circulate the water through a chiller system. A carbon dioxide source is connected to the carbonator tanks to produce carbonated water. The system also includes a water level sensor connected to a controller, a plurality of syrup containers, a syrup pump, syrup regulator valves, a brix capacitor, a dispensing tower and faucets connected to the dispensing tower housing. The controller operates the water pump and motor assembly to maintain a water level within a predetermined range and to maintain continuous flow and refrigeration of the carbonated water, which optimizes carbonation. The brix capacitor receives chilled carbonated water and chilled syrup in separate lines. Carbonated water is circulated to the faucets through a manifold in the brix capacitor and then circulated back into the carbonator tanks. Valves are provided in the brix capacitor to manipulate carbonated water and syrup flow rates and pressures into the faucets. The system maintains the carbonated water and syrup at a refrigerated temperature and a predetermined maximum pressure. When a faucet is opened, the carbonated water and syrup mix as they flow laminarly into a container. The result is consistently optimum carbonation when the beverage is dispensed.

The invention discloses a condensation ejector which comprises an accepting chamber, a throat chamber, a mixing chamber, a dispersion chamber, a condensing chamber and an atomizing mechanism, wherein the accepting chamber is provided with a first inlet and a second inlet; one end of the throat chamber is communicated with the accepting chamber, and the throat chamber is located on the down stream of the second inlet; one end of the mixing chamber is communicated with the other end of the throat chamber, one end of the dispersion chamber is communicated with the other end of the mixing chamber, and a first outlet is formed in the other end of the dispersion chamber; the condensing chamber is arranged close to the outer side of the down stream of the mixing chamber in a surrounding mode and comprises a third inlet formed in the down stream end of the condensing chamber, a second outlet formed in the upstream of the condensing chamber, a plurality of main condensing pipes and a plurality of branch condensing pipes, one end of each of the condensing pipes extends into the mixing chamber, the extending directions of the branch condensing pipes are different, the other end of each of the branch condensing pipes is communicated with a main condensing pipe, one end of the main condensing pipe is sealed, and the other end of the main condensing pipe is communicated with the dispersion chamber through a fourth inlet in the dispersion chamber; the atomizing mechanism is provided with a plurality of nozzles formed in the position of the fourth inlet, and the atomizing mechanism is used for atomizing fluid in the main condensing pipe and spraying the fluid in the dispersion chamber.