66results about How to "Optimum structure size" patented technology

The invention provides a heat exchanger which comprises two collecting boxes and heat exchange tubes, wherein the heat exchange tubes are arranged between the two collecting boxes; the heat exchange tubes are flat heat exchange tubes; fins are arranged in the flat tubes; the fins comprise inclined parts; a fluid channel is partitioned by the inclined parts into a plurality of small channels; the larger the distance between the flat tubes and an inlet tube is, the larger the lengths h of the bottom sides of the isosceles triangular communication holes in the flat heat exchange tubes are. According to the heat exchanger, as the lengths h of the bottom sides of the isosceles triangular communication holes are changed along with the distance between the flat heat exchange tubes and the inlet tube, fluid can be enabled to flow to the heat exchange tubes with small flow resistance and far away from the inlet tube, the fluid can be uniformly distributed inside the heat exchange tubes, the heat exchange efficiency can be improved, and the service life can be prolonged.

The invention provides an intelligent control method for a solar energy system. A solar heat collector system comprises a heat collector, wherein the heat collector comprises a heat collecting pipe and a water tank; the heat collecting pipe comprises a heat absorbing end and a heat releasing end, and the heat releasing end is arranged in the water tank; a water level meter is arranged in the water tank, and an outlet pipe temperature sensor is arranged on an outlet pipeline of the water tank; an inlet pipe valve and an outlet pipe valve are respectively arranged on an inlet pipe and an outlet pipe of the water tank, and the water level meter, the temperature sensor, the inlet pipe valve and the outlet pipe valve are in data connection with a central controller; the central controller controls the size of the opening degree of the inlet pipe valve and the outlet pipe valve according to the temperature measured by the temperature sensor and the water level measured by the water level meter. The method automatically controls multiple parameters of the solar energy system, realizes intelligent control for the solar water temperature, and therefore improves the using intelligentization of the solar energy system.

The invention provides a solar heat accumulation system. The system comprises a heat collector, a heat accumulator and a heat utilization device; a heat exchange tube is introduced into the heat accumulator, performs heat exchange with a heat accumulation material and is connected with the heat utilization device via a pipeline; a valve is arranged on the pipeline between the heat utilization device and the heat accumulator, and also in data connection with a central controller; a temperature sensor is arranged on an inlet tube of the heat utilization device and used for automatically detecting a temperature of water entering the heat utilization device; the temperature sensor is in data connection with the central controller; the central controller controls opening of the valve according to the detected water temperature. The solar heat accumulation system monitors the temperature of water entering the heat utilization device and thus guarantees constant water temperature of the heat utilization device by controlling the flow; in such a manner, intelligent utilization of the heat accumulation system is realized.

The invention provides a solar phase-change heat storage system. The solar phase-change heat storage system comprises a heat collector, a heat storage box and radiating tubes. The radiating tubes are arranged in the heat storage box, water heated by the heat collector passes through the radiating tubes, and heat is transferred to the heat storage box through the radiating tubes. The solar phase-change heat storage system is characterized in that a phase-change heat storage material is arranged in the heat storage box. The phase-change material is arranged to serve as a heat storage material, so that heat storage capacity is high, and energy is greatly saved.

The invention provides a heat exchanger. The heat exchanger comprises two headers and heat exchange pipes arranged between two headers. The heat exchange pipes are flat heat exchange pipes. Fins are arranged in the flat pipes. The fins include inclined parts. A fluid channel is divided into a plurality of small channels through the inclined parts. The numbers of the communicating holes distributed in the different flat heat exchange pipes are different, and the longer the distances of the flat heat exchange pipes away from an inlet pipe are, the larger the numbers of the communicating holes distributed in the flat heat exchange pipes are. By means of the heat exchanger with the variable numbers of the communicating holes, due to the fact that the numbers of the communicating holes are set to be changed along with the distances of the heat exchange pipes away from the inlet pipe, fluid flows into the heat exchange pipes which are low in flowing resistance and is away from the inlet pipe, the fluid is evenly distributed in the heat exchange pipes, the heat exchange efficiency is improved, and the service life is prolonged.

The invention provides a heat pipe. The heat pipe comprises a flat pipe, wherein the flat pipe comprises parallel pipe walls; a fluid channel is formed between the adjacent pipe walls. The heat pipe comprises fins arranged in the flat pipe, and the fins are arranged between the pipe walls; the fins comprise inclined portions inclining to the pipe walls, and protrusions are machined on the inclined portions in a stamped manner, so that fluid on the two sides of the inclined portions is continuous through holes formed in the inclined portions in a stamped manner; and the protrusions extend outwards from the inclined portions in the flowing direction of the fluid. Stamped protruded plate fin heat dissipation pieces are arranged in the heat pipe, and therefore the problem that the heat exchange efficiency of the noncondensable gas is low is solved, energy is greatly saved, and the problem that the heat exchange efficiency of the heat pipe is low is solved.

The invention provides a plate-fin type heat exchanger for non-zaeotropic multicomponent mixture condensation. The plate-fin type heat exchanger comprises plates which are parallel to one another, fins are arranged between the plates, the fins comprise perpendicular parts perpendicular to the plates, spikes are machined on the perpendicular parts in a stamping mode, and therefore fluid at the two sides of the perpendicular parts is communicated through holes formed in the perpendicular parts in a stamping mode; the spikes extend outwards from the perpendicular parts in the flow direction of a mixture. By means of the novel plate-fin type heat exchanged used for the non-azeotropic multicomponent mixture condensation, the problem of the condensation of multicomponent mixed media with different boiling points is solved, the heat exchange efficiency is improved, and flow resistance of the fluid is reduced.

The invention provides a solar heat collector. The solar heat collector further comprises heat collection tubes, transparent glass plates, heat isolation layers and heat absorption films, wherein each heat collection tube comprises a heat absorption part and a heat release part; each heat absorption part absorbs solar energy radiation; one heat absorption film is arranged on the front surface of the heat absorption part of each heat collection tube; one transparent glass plate covers the front surface of the heat absorption part of each heat tube; and one heat isolation layer is reserved between each heat absorption part and the corresponding transparent glass plate. According to the solar heat collector provided by the invention, through arranging the heat absorption films and the heat isolation layers, solar energy absorption is reinforced, heat absorption effect is ensured, and energy is saved.

The invention provides a triangular plate-type fin for condensing a non-azeotropic multi-component mixture. The fin comprises slant parts. The ends of the adjacent slant parts are connected to form the vertex angle of a triangle, the bottom edge of the triangle is formed by the connecting line of the other ends of the adjacent slant parts, and the triangle is formed by the bottom edge and the adjacent slant parts. Protruding stabs are machined on the slant parts in a punched manner, and therefore fluid on the two sides of the slant parts is communicated through holes formed in the slant parts in a punched manner. The protruding stabs extend outwards from the slant parts in the flowing direction of the mixture. The invention provides the novel plate fin suitable for being used during condensing of the non-azeotropic multi-component mixture, and therefore condensing of different-boiling-point multi-component mixed media is achieved, the heat exchange efficiency can be improved, and the flow resistance of the fluid can be reduced.

The invention discloses an operating temperature optimization method and design method for a gravity loop heat pipe system. By means of the operating temperature optimization method for the gravity loop heat pipe system, the problems that the relationship among all components of a gravity type loop heat pipe cannot be expressed through independent design calculation, an optimized result cannot be obtained, and an optimal working state cannot be achieved are solved, and the effects that a heat transmission relation is established between an evaporator and a condenser, and the working temperature of the loop heat pipe can be directly obtained through one-time calculation are achieved. According to the technical scheme, the operating temperature optimization method comprises the steps that the heat transmission process of the gravity loop heat pipe system from a heat source to a cold source is divided into a plurality of heat transmission links, and then a loop heat pipe heat resistance network model of the gravity loop heat pipe system is built; and based on the loop heat pipe heat resistance network model of the gravity loop heat pipe system and the heat balance constraint condition of the loop heat pipe, the operating temperature of the loop heat pipe is the optimal temperature under the condition that the heat exchange area of the gravity loop heat pipe system is minimum.

The invention provides a solar regenerative system, comprising a heat collector, a heat storage water tank and radiating tubes, wherein the radiating tubes are arranged in the heat storage water tank, hot water heated by the heat collector goes through the radiating tubes and transmits heat to the heat storage water tank by the radiating tubes; the radiating tubes are multiple radiating tubes connected in series. By arranging the multiple radiating tubes connected in series, a heat exchange area can be increased, the absorption of solar energy is enhanced, and energy is greatly saved.