33results about How to "Improve the phenomenon that the temperature rises gradually along the flow direction" patented technology

The invention provides a prefabricated wall, a building and a construction component management system thereof. The prefabricated wall includes a transparent board, a preheating tube, a heat insulating layer, an outer bearing wall, an thermal insulation layer, an inner bearing wall, and a ventilation component; the transparent board, the preheating tube and the heat insulating layer are arranged on the outer surface of the outer bearing wall, the transparent board is arranged on the outside of the preheating pipe, the heat insulating layer is arranged on the inner side of the preheating pipe,and the thermal insulation layer is installed between the outer bearing wall and the inner bearing wall; the ventilation component is arranged on the inner surface of the inner bearing wall; the upperentrance of the ventilation component is connected to a solar collector; the preheating tube enters the wall from the upper part of the wall; the lower part of the wall is a closed structure; the preheating tube is provided with branches, and the branch entrance extends into the room inside the wall; and the lower entrance is provided with a fan. The invention provides a new solar air-conditioning building wall located at the bottom of the building, which achieves the air conditioning effect and improves the utilization degree and utilization efficiency of solar energy.

The invention provides a water-cooled plate heat exchanger with a circular structure, including a base plate and a cover plate, and the first baffle plate, the second baffle plate, and the third baffle plate are arc structures with the center point of the base plate as the center; the first The baffle includes a plurality of pieces distributed at equal intervals in the circular direction, and intervals are set between adjacent first baffles; the second baffle includes a plurality of pieces distributed at equal intervals in the circular direction, and between adjacent second baffles Spaces are set between them; the third baffle includes a plurality of equidistant distributions in the circular direction, and intervals are set between adjacent third baffles; a plurality of cylindrical ribs are set between the second baffle and the third baffle ; A plurality of cylindrical ribs are arranged between the first baffle and the second baffle; and a plurality of cylindrical ribs are arranged outside the third baffle. The invention adopts a circular structure, which can meet the heat exchange requirement of the circular structure.

The invention provides a solar fresh air system, which includes a heat collector, a heat storage heat exchanger, and a cold source module. The heat collector absorbs solar energy and then transfers it to the heat storage material through the heat storage heat exchanger. The cold source module includes The cold source passage, the cold source passage exchanges heat with the heat storage material, and transfers the heat to the cold source in the cold source passage, the cold source is air, and the air is heated and transported to the room of the building, Thus forming a fresh air system. The present invention provides a new fresh air system, which can rely on heat storage blocks for independent heat storage and heat exchange, saves heat exchange tubes, and can further improve heat storage and heat exchange effects.

The invention provides a liquid-cooled plate heat exchanger with variable intervals, including a bottom plate and a cover plate, the bottom plate and the cover plate are square structures, the cover plate and the bottom plate are assembled together to form a square cavity, and the cooling liquid flows in the cavity. A baffle and a rib are arranged on the bottom plate, and the baffle includes a first baffle located at the center of the bottom plate, a second baffle surrounded outside the first baffle, and a second baffle surrounded by the second baffle. The third baffle on the outside and the fourth baffle surrounding the outside of the third baffle, a plurality of ribs are arranged inside the first baffle; the ratio of the length of the baffle wall between the first interval and the first baffle > The ratio of the length of the baffle wall of the second compartment to the baffle wall of the second baffle > The ratio of the length of the baffle wall of the third compartment to the baffle wall of the third baffle > The ratio of the baffle wall of the fourth compartment to the baffle wall of the fourth baffle ratio of lengths. Through the change of the ratio of the space to the wall of the baffle plate, the more the space diffuses to the outside, the smaller the space is, which can improve the heat exchange effect and enhance the heat transfer.

The invention provides a liquid-cooled plate heat exchanger with multi-outlet distribution, including a bottom plate and a cover plate, the bottom plate and the cover plate are square structures, the cover plate and the bottom plate are assembled together to form a square cavity, and the cooling liquid flows in the cavity , it is characterized in that the heat exchanger includes a liquid inlet and a liquid outlet arranged on the cover plate, the liquid inlet is set at the center of the cover plate, and the liquid outlets are set four, which are respectively arranged on the four tops of the cover plate corner position. In the present invention, through the above structure, the cold liquid flows in from the central area of ​​the cover plate. When the cold liquid just enters the heat exchanger, the temperature is still low, the temperature difference with the heat source is large, the heat exchange capacity is strong, and the temperature of the heat source area can be controlled more effectively, so that The uniform outlet distribution can make the liquid distribution more uniform and the heat exchange effect better.

The invention provides a water-cooling tube plate type heat exchanger which comprises a base plate and a cover plate. The cover plate and the base plate are assembled together to form a fluid space. Abaffle plate and a cylindrical fin are arranged on the base plate. The baffle plate comprises a first baffle plate located at the center of the base plate, a second baffle plate encircling the outerside of the first baffle plate and a third baffle plate encircling the outer side of the second baffle plate. The heat exchanger comprises a fluid inlet and fluid outlets formed in the cover plate. Acold fluid inlet is formed in the center of a first square, and the two fluid outlets are separately formed in outer positions of parallel lines formed by two fourth baffle plates. The invention aimsto provide a center diffusing type water cooling plate. A refrigerant inlet / outlet mode of a common water cooling plate is changed by the water cooling plate, the flow equalizing property of a refrigerant in the cold plate is improved by additionally arranging the baffle plate, and the heat-dissipating characteristic of the water cooling plate is improved by arranging column ribs.

The invention provides a water-cooling plate type heat exchanger distributing flow according to a wall surface temperature. When a temperature detected by a fourth temperature sensor is higher than atemperature detected by a fifth temperature sensor by a certain value, a controller automatically controls the flow of a first outlet to be decreased and the flow of a second outlet to be increased; and when the temperature detected by the fifth temperature sensor is higher than the temperature detected by the fourth temperature sensor by a certain value, the controller automatically controls theflow of the first outlet to be increased and the flow of the second outlet to be decreased. By detecting the temperatures of the fourth temperature sensor and the fifth temperature sensor, the water-cooling plate type heat exchanger can determine the amount of heat exchange in a left area and a right area, and automatically control the distribution of fluid on both sides according to the amount ofheat exchange on both sides to ensure that the internal fluid is uniform in heat exchange and the surface temperatures of a lower wall surface are uniform.

The invention provides a water-cooled plate heat exchanger with a uniform heat exchange effect. A second valve and a third valve are arranged on pipelines of a first outlet and a second outlet correspondingly, the second valve and the third valve are in data connection with a controller, the controller controls the opening degrees of the second valve and the third valve, and therefore the flow offluid of the two outlets is controlled. By adjusting the flow of the fluid of the outlets, the heat exchange amount participating in the fluid on the two sides is adjusted, it is guaranteed that the temperatures on the two sides are kept uniform, and the situation that as the local temperature is too high, a heat source is not subjected to heat exchange in time is avoided.

The invention provides a design method of a water-cooled tube plate type heat exchanger. The heat exchanger comprises a base plate and a cover plate, the cover pate and the base plate are assembled together to form a fluid space, the base plate is provided with baffles and cylindrical fins, the baffles comprise the first baffle located at the center of the base plate, the second baffle surroundingthe first baffle and the third baffle surrounding the second baffle, and a nusselt number and other formulas are designed through parameters. According to the design method, through a large number ofresearches, the structure of the heat exchanger is simulated, the nusselt number and other formulas of the structure are determined for the first time, and the heat dispersion performance and pump power consumption of a water-cooled plate can be estimated by the formulas.

The invention provides a heat exchanger for heat storage and a fresh air system for controlling PM2.5. The heat exchanger for heat storage comprises a heat source inlet, a heat source outlet, a cold source inlet, a cold source outlet and a shell, wherein a plurality of heat storage blocks are arranged in the heat exchanger shell and stacked together, a first hole is formed in each heat storage block, and a channel formed by each first hole is used for circulating the heat source; the heat source enters from the heat source inlet, passes through the first hole and then is discharged from the heat source outlet; and the heat storage capacity of a heat storage material is gradually reduced along a flowing direction of the heat source. The invention aims at providing a novel heat exchanger forheat storage and a fresh air system. The cost of heat storage material can be saved, and the heat storage effect can be improved.