58results about How to "Stable heat exchange" patented technology

The invention provides a molten salt tube-shell type steam generating device and a molten salt tube-shell type steam generating method. The device comprises a tube-shell type heat exchanger, a steam separation output component and a heating and heat preservation component, wherein the steam separation output component is arranged on the top of the tube-shell type heat exchanger, and the heating and heat preservation component is arranged on the outer side of the container wall of the tube-shell type heat exchanger; the tube-shell type heat exchanger is provided with a top tube box, a tube body and a bottom tube box in sequence from top to bottom, wherein the inside of the tube body is provided with tube bundles of which both ends are fixedly connected with the tube body by tube plates, and the gaps between the tube bundles are filled with molten salt; and the outer side of the tube body is provided with a molten salt inlet tube and a molten salt outlet tube, and the bottom tube box is provided with a water inlet tube and a water outlet tube. The method comprises the following steps of: pre-heating the tube body; and orderly performing molten salt filling, hot water filling, and steam separating and outputting. The device has the advantages of big effective heat storage capacity, long-term stable operation, and relatively low manufacturing cost and maintenance cost, and can meet the requirements on large-scale solar mid- and high-temperature heat utilization in industry.

The invention discloses a molten salt heat storage device. The molten salt heat storage device comprises a molten salt heat storage furnace, an oil storage tank, a plate heat exchanger and a heat-insulation water storage tank. The molten salt heat storage furnace comprises a furnace body and vertical pipes which are evenly arranged in the furnace body in a regular triangle or regular hexagon mode and used for packaging molten salt. Electric heating belts are wound on the outer walls of the vertical pipes. The furnace body is filled with conduction oil serving as heat exchange fluid. The oil storage tank is communicated with the molten salt heat storage furnace and used for storing the conduction oil. The molten salt heat storage furnace is communicated with the plate heat exchanger, and the plate heat exchanger is communicated with the heat-insulation water storage tank. According to the molten salt heat storage device, the molten salt is used as heat storage media, flowing is not needed, a molten salt pump is omitted, the structure is simple, and corrosion is smaller; the traditional high-temperature conduction oil is used for heat exchange; the cost is lower, and operation is easier; the vertical pipes used for packaging the molten salt are arranged in a special mode, so that heating is uniform, the efficiency is higher, the structure is reasonable, the efficiency is high, energy is saved, environmental friendliness and stability are achieved, and safety and reliability are achieved.

The invention discloses a liquid nitrogen cooling cryogenic device and an implementation method for the same. The cryogenic device comprises a self-pressurization liquid nitrogen tank, a cryogenic container, a liquid nitrogen dedicated cryogenic electromagnetic valve, a temperature control alarm and a sample container, wherein the cryogenic container is connected with a liquid outlet of the self-pressurization liquid nitrogen tank through a liquid nitrogen pipeline; the liquid nitrogen dedicated cryogenic electromagnetic valve is arranged in the liquid nitrogen pipeline; the temperature control alarm is connected with the liquid nitrogen dedicated cryogenic electromagnetic valve, and is provided with a first temperature measurement probe and a second temperature measurement probe; the sample container is arranged in the cryogenic container; both the first and second temperature measurement probes are positioned in the cryogenic container; the second temperature measurement probe is lower than the first temperature measurement probe; an organic matter medium filling pipe and an organic matter medium discharging pipe are further arranged on the cryogenic container respectively. The cryogenic device is simple in structure, low in cost and convenient to control, and has good cryogenic cooling and cryogenic constant temperature control effects, so that the requirements of a miniature cryogenic device in a laboratory can be met, and the requirements of larger-sized engineering operation can further be met.

Provided is a hot-water heater manufacturing method capable of obtaining stable heat exchange characteristics by applying a moderate contact surface pressure between heating-medium circulating tubes and heater members that constitute a hot-water heater, and capable of improving the reliability by enhancing the joint strength between the heating-medium circulating tubes, with a simple and easy manufacturing process.

The invention discloses a double-pipe heat transfer enhancement unit component and a penetrating hybrid cyclone efficient double-pipe heat exchanger. The double-pipe heat transfer enhancement unit component comprises an inner pipe, an outer pipe, an inner pipe twisting reinforcement part and an inter-pipe twisting reinforcement part, wherein an inner cavity allowing sludge to circulate therein isdefined in the inner pipe; the outer pipe sleeves the inner pipe; an outer cavity allowing sludge to circulate therein is defined between the outer pipe and the inner pipe; a first circulation openingis formed in the inner pipe twisting reinforcement part; and a second circulation opening is formed in the inter-pipe twisting reinforcement part. According to the double-pipe heat transfer enhancement unit component of the embodiment, two heat exchange fluids can conduct complicated flowing including spirally rotary flowing and porous penetrating hybrid flowing, so that the heat exchange fluidsare prevented from bias flowing, precipitation, cementation and blockage, mud-mud long-term stable and efficient heat exchange can be realized, the sludge conveying flow resistance and the pumping power dissipation are remarkably reduced, and accordingly, remarkable energy-saving economic benefits and environment-friendly social benefits can be achieved in sludge treatment.

A fluid heating device mainly includes: for example, an armored heater having a sheath made of copper and heating a heating element for heating a fluid (such as water); 1 casing member; a flow path for fluid flow formed by the space between the outer surface of the sheathed heater and the inner surface of the first casing member; having an inlet for introducing the fluid into the flow path, by A second case member made of, for example, resin; and a third case member made of, for example, resin, having an outflow port for taking out a heating fluid (for example, warm water) in the flow path. A helical coil made of, for example, copper is provided in the first case member, and the helical coil is wound helically around the outer periphery of the sheath heater within the flow path.

A hot-blast stove comprises a gasification chamber, a combustion chamber, a burn-out chamber, an air mixing chamber, a fire grate, a tail flue and the like. The gasification chamber, the combustion chamber, the burn-out chamber and the air mixing chamber are sequentially horizontally parallelly arranged to form a reciprocating type material air flow channel. The fire grate is obliquely arranged at the bottoms of the gasification chamber and the combustion chamber. Primary air chambers are arranged at the bottom of the fire grate. The inclined bottom of the burn-out chamber is provided with a tertiary air pipe. A heat exchanger is arranged in the tail flue and used for heating cold air into hot air. The tail flue part in the front of the heat exchanger is provided with a primary cold air pipe, and the tail flue part at the rear of the heat exchanger is provided with a secondary cold air pipe. The hot-blast stove is long in material air flow channel travel, good in gasification and combustion effect, clean in flue gas and capable of acquiring hot air and hot flue gas.

Provided is a fin-and-tube type heat exchanger using a return bend pipe capable of improving the evaporation performance of the heat exchanger still better. This heat exchanger comprises a hair pin unit having a multiplicity of hair pin pipes arranged in parallel, a return bend unit having a multiplicity of such return bend pipes arranged in parallel as are jointed to the individual hair pin pipe end portions of the hair pin portions, and a fin portion having a multiplicity of fins arranged in parallel at a constant spacing on the outer surfaces of the hair pin pipes. The pipe insides are fed with a coolant. The heat exchanger has first grooves formed in the inner faces of the return bend pipes. The groove pitch ratio (P1/P2) between a first groove pitch (P1), as taken in the section normal to the pipe axis, of the first grooves, and a second groove pitch (P2), as taken in the section normal to the pipe axis, of second grooves of a helical shape formed in the pipe inner faces of the hair pin pipes satisfies 0.65 to 2.2. At the same time, the groove sectional area ratio (S1/S2) between a first groove sectional area (S1) per groove, as taken in the section normal to the pipe axis, of the first grooves and a second groove sectional area (S2) per groove, as taken in the section normal to the pipe axis, of the second grooves satisfies 0.3 to 3.6.

The invention discloses a computer hardware temperature detection and temperature control device. The device is characterized in that temperature detectors are mounted at the side end of a fixed mounting block, a fixed heat conduction box sleeves the side end of a porous heat conduction plate, a heat absorption box is fixedly mounted at the position, close to a mainboard, of a shell, backflow pipes penetrate through the tops of one ends of the fixed heat conduction box and the heat absorption box, the water inlet end of an input pipe is fixedly connected with a water outlet end of a booster pump, acceleration fans symmetrically penetrate through the two ends of the shell, an auxiliary fan is installed at the top end of the shell, and a blocking protection plate is welded to one end of a force spring. According to the invention, temperature detection is carried out on different positions in a computer case through the multiple temperature detectors, and heat dissipation is carried out on the interior of computer case through multiple heat exchange and dissipation methods, so rapid cooling can be performed when internal temperature is higher than external temperature and rapid isolation can be carried out when external air temperature is higher than the temperature of the internal case; and thus, the situation that the internal temperature is too high continuously due to interchange of the internal temperature and the external temperature and normal use of a computer is affected is avoided.

The invention relates to a commutatorless high-temperature heat exchanger. A heat storage device comprises a lower cylinder, a rotor heat storage body and an upper cylinder which are arranged in sequence, wherein the lower cylinder is fixedly arranged on a framework; the lower cylinder is partitioned into a low-temperature air chamber and a low-temperature gas chamber; a side face of the lower cylinder is provided with a low-temperature air inlet and a low-temperature gas outlet; the rotor heat storage body is supported against the lower cylinder in a free rotation manner and is filled with a heat storage medium; the upper cylinder is positioned on the rotor heat storage body and is fixedly arranged on the framework; the upper cylinder is partitioned into a high-temperature gas chamber and a high-temperature air chamber; the top of the upper cylinder is provided with a high-temperature gas inlet and a high-temperature air outlet; the high-temperature gas inlet in the upper cylinder is communicated with the low-temperature gas outlet in the lower cylinder; the low-temperature air inlet in the lower cylinder is communicated with the high-temperature air outlet in the upper cylinder; and a driving mechanism on the framework is in drive connection with the rotor heat storage body to drive the rotor heat storage body to rotate. The high-temperature gas heat is continuously transferred to combustion-supporting air by the rotation of the rotor heat storage body, so that thermal-state continuous operation and heat exchange are realized, and the heat exchange efficiency is high.

The invention discloses a combined type efficient heat exchanger, and relates to the technical field of heat exchangers. The combined type efficient heat exchanger comprises a first supporting rod, the two ends of the first supporting rod are fixedly connected with a first vertical rod and a second vertical rod correspondingly, and the portion located between the opposite sides of the first vertical rod and the second vertical rod and located at the top of the first supporting rod is fixedly connected with a second supporting rod. The combined type efficient heat exchanger exchanges heat though the temperature difference between a first S-shaped spiral tube type heat exchange tube and a second S-shaped spiral tube type heat exchange tube, and exchanges heat though the temperature difference between the air temperature and the first S-shaped spiral tube heat exchange type tube by using fin plates, the heat exchange efficiency is improved, the energy consumption is reduced, the heat exchange process tends to be stable, dust particles, peculiar smell and harmful gas in hot fluid are removed through a triple filter structure, erosion of harmful substances in the hot fluid to the secondS-shaped spiral tubular heat exchange tube is avoided, and the service life of the second S-shaped spiral tube type heat exchange tube is prolonged.

The invention provides an electronic device cooling device. The device comprises a working body (1), wherein the working body (1) is a sealed cavity, a cooling medium is arranged in the sealed cavity,a plurality of micro-channels (2) are arranged on the inner bottom surface of the sealed cavity, nano porous films (3) with capillary force are arranged at the upper parts of the micro-channels (2),a heat conduction structure (4) is arranged outside the bottom surface of the sealed cavity, and an electronic device (12) exchanges heat with the cooling medium through the heat conduction structure(4); the heat dissipation device (5) is arranged on the outer surface of the working body (1) so as to dissipate heat in the working body (1); and the energy storage device (6) is arranged at the upper part of the working body (1) and is used for stabilizing the pressure in the working body.

The invention relates to a high-temperature solid micro-powder residual heat boiler. The boiler comprises an evaporator, a water-cooling wall, a coal economizer, a wall-type water heater, a vapor-moisture separator, a vapor-moisture connecting pipeline, a mechanical vibration feeder, a material inlet, a material outlet, an expansion device, a steel rack and a platform, wherein feed water enters the wall-type water heater, enters the coal economizer, enters the vapor-moisture separator through a water feed pipe, enters an inlet header of the evaporator and the water-cooling wall from a downcomer of the vapor-moisture separator, reaches an outlet header after heat exchange in a snake-shaped pipe heat-exchange surface, and enters the vapor-moisture separator through an ascending pipe; and the separated saturated vapor is exhausted from a vapor outlet for power generation or utilization by the vapor-moisture separator, the separated water is subjected to the circulation repeatedly, and vapor is generated in the repeated circulation. The high-temperature solid micro-powder residual heat boiler has the technical effects of uniform and stable heat exchange, can be used for reclaiming a great number of vapor, and has good economic benefit and social benefit.