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 circular-structure plate heat exchanger for controlling flow by comparing adjacent temperatures. The circular-structure plate heat exchanger comprises a base plate and a coverplate, the base plate and the cover plate are of a circular structure, the cover plate and the base plate are assembled together to form a circular cavity, cooling fluid flows in the cavity, an inletis formed in the center of the cover plate, and a temperature sensor is arranged on the outer wall face of the base plate; the temperature sensor is in data connection with the controller, and the controller automatically controls the fluid flow of the inlet according to the data of the temperature sensor; and the controller extracts the temperature data according to the time sequence, the temperature difference of the temperature data is obtained by comparing the temperature data of the adjacent time periods, and the controller automatically controls the fluid flow of the inlet according tothe temperature difference. According to the circular-structure plate heat exchanger for controlling flow by comparing the adjacent temperatures, the situation that heat exchange and heat dissipationcannot be conducted in time due to too much or too little heat exchange fluid is avoided, and it is avoided that the temperature of a heat source is too high or too low to affect operation of the heatsource.

The invention provides a plate heat exchanger capable of intelligently controlling according to the outlet temperature. A second temperature sensor and a third temperature sensor are arranged at fluidoutlets separately, are used for detecting the fluid temperature of two outlets and are in data connection with a controller; the controller automatically controls the fluid flow rate of an inlet according to the fluid temperature of the two outlets; when the detected temperature is higher than the set first temperature, the controller controls the opening degree of a first valve to be increasedto increase the fluid flow rate entering the heat exchanger; and when the detected temperature is lower than the set second temperature, the controller controls the opening degree of the first valve to be reduced to reduce the fluid flow rate entering the heat exchanger. The plate heat exchanger avoids that the heat exchanging fluid is too much or too little to realize timely heat exchange and dissipation and also avoids the temperature of a heat source to be too high or too low to not to affect operation of the heat source.

The invention provides a uniform temperature control method for a liquid-cooled plate heat exchanger, which includes a bottom plate and a cover plate, the highest temperature and the lowest temperature of the four outlet temperatures detected, and when the difference between the highest temperature and the lowest temperature exceeds a certain value, control The device automatically controls the opening of the valve at the outlet with the lowest temperature to decrease, and the opening of the valve at the outlet with the highest temperature to increase, so that the liquid flow at the outlet with the lowest temperature decreases and the liquid flow at the outlet with the highest temperature increases. By adjusting the flow rate of the liquid at the lowest and highest temperature outlets, the heat exchange of liquids participating in the lowest and highest temperature sides can be adjusted. In the present application, by adjusting the liquid flow rate, the overall output temperature can be kept balanced, and the local temperature can be avoided from being too high or too low.

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 water-cooled plate heat exchanger with a circular structure. The water-cooled plate heat exchanger comprises a base plate and a cover plate, wherein first baffles, second baffles and third baffles are of an arc structure with the center point of the base plate as the circle center. The first baffles are distributed in the circular direction at equal intervals, and intervals are set between the adjacent first baffles. The second baffles are distributed in the circular direction at equal intervals, and intervals are set between the adjacent second baffles. The third baffles are distributed in the circular direction at equal intervals, and intervals are set between the adjacent third baffles. A plurality of cylindrical ribs are arranged between the second baffles andthe third baffle. A plurality of cylindrical ribs are arranged between the first baffles and the second baffles; and a plurality of cylindrical ribs are arranged outside the third baffles. According to the plate heat exchanger, the circular structure is adopted, and the heat exchange requirement of the circular structure can be met.

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 plate heat exchanger capable of intelligently controlling according to the outlet temperature. A second temperature sensor and a third temperature sensor are arranged at fluidoutlets separately, are used for detecting the fluid temperature of two outlets and are in data connection with a controller; the controller automatically controls the fluid flow rate of an inlet according to the fluid temperature of the two outlets; when the detected temperature is higher than the set first temperature, the controller controls the opening degree of a first valve to be increasedto increase the fluid flow rate entering the heat exchanger; and when the detected temperature is lower than the set second temperature, the controller controls the opening degree of the first valve to be reduced to reduce the fluid flow rate entering the heat exchanger. The plate heat exchanger avoids that the heat exchanging fluid is too much or too little to realize timely heat exchange and dissipation and also avoids the temperature of a heat source to be too high or too low to not to affect operation of the heat source.

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 regenerative heat exchanger and a fresh air system. The regenerative heat exchanger comprises a heat source inlet, a heat source outlet, a cold source inlet, a cold source outlet and a shell, a plurality of heat storage blocks are arranged in the shell of the heat exchanger, the multiple heat storage blocks are stacked together, a first hole and a second hole are formed ineach heat storage block and do not communicate with each other, the first holes of the multiple heat storage blocks form a communicating channel, the channel formed by the first holes is used for circulating a heat source, and the second holes form a communicating channel to circulate a cold source; and the heat source enters from the heat source inlet, passes through the first holes and then isdischarged from the heat source outlet, and the cold source enters from the cold source inlet, passes through the second holes and then is discharged from the cold source outlet. According to the novel regenerative heat exchanger, independent heat storage and heat exchanging can be conducted through the heat storage blocks, heat-exchanging pipes are omitted, and the heat-storage and heat-exchanging effects can be further improved.

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-cooled tube-sheet heat exchanger with variable spacing between cylindrical fins, which includes a base plate and a cover plate, the cover plate and the base plate are assembled together to form a fluid space, and a baffle plate and cylindrical fins are arranged on the base plate, so that The baffle includes a first baffle located at the center of the substrate, a second baffle surrounding the first baffle, and a third baffle surrounding the second baffle; between the second baffle and the third baffle Cylindrical fins are arranged between them, outward from the center of the substrate, the farther away from the center of the substrate, the farther the distance between adjacent cylindrical fins is. The purpose of the present invention is to keep the fluid flow rate relatively stable by setting the distance between adjacent cylindrical fins so that the overall heat transfer can be relatively uniform, and avoid local uneven heating, causing local premature damage .

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 circular structure plate heat exchanger with adjacent temperature comparatively controlling the flow rate, including a base plate and a cover plate, the base plate and the cover plate are of circular structure, the cover plate and the base plate are assembled together to form a circular cavity, and the cavity The cavity is used for cooling fluid to flow, the center of the cover plate is provided with an inlet, and the outer wall of the base plate is provided with a temperature sensor, the temperature sensor is connected with the controller data, and the controller automatically controls the fluid flow of the inlet according to the data of the temperature sensor; The controller extracts the temperature data according to the time sequence, and obtains the temperature difference by comparing the temperature data of adjacent time periods, and the controller automatically controls the fluid flow at the inlet according to the temperature difference. The present invention avoids too much or too little heat exchanging fluid, resulting in failure to conduct heat exchange and heat dissipation in time, and avoids the temperature of the heat source being too high or too low, thereby affecting the operation of the heat source.

The invention provides a solar system, a heating and ventilating system and a building roof with the solar system. The solar system comprises a collector. The collector comprises heat collecting pipesand a reflecting mirror. The heat collecting pipes are flat pipes. The lower flat surfaces of the flat pipes are opposite to the reflecting surface of the reflecting mirror. Each flat pipe comprise abottom plate on the lower side and an upper cover on the upper side, wherein the upper cover and the bottom plate are assembled together to form a cavity of the flat pipe, and fluid flows in the cavity. Each bottom plate comprises a plurality of heat exchange area. Each heat exchange area comprises vertical plates and column ribs. The novel solar system is developed, and a flow guide structure isarranged in a cold plate of each heat exchange area, so that a refrigerant flowing dead area is effectively reduced, and the thermal homogeneity of a hot flow surface is further improved; and by means of the column ribs, the disturbance to the flow field is enhanced, the heat exchange area is expanded, and heat exchange can be easily reinforced.

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 water-cooled plate-type heat exchanger with pulsating vibration. The water-cooled plate-type heat exchanger includes a base plate, a cover plate, a fluid inlet and fluid outlets. Each fluid outlet includes a first outlet and a second outlet. The cover plate and the base plate are assembled together to form a fluid space. The base plate is provided with a baffle and a cylindrical rib piece, and the fluid inlet is located in the middle position of the two fluid outlets. The water-cooled plate-type heat exchanger is characterized in that the cylindrical rib piece is of anelastic structure, a pulsation generating device is arranged on an inlet pipeline, and fluid entering the plate-type heat exchanger is enabled to be pulsating flow through the pulsation generating device. According to the water-cooled plate-type heat exchanger, the pulsation generating device is arranged on the inlet pipeline, and the fluid entering the plate-type heat exchanger is enabled to bethe pulsating flow through the pulsation generating device, so that the movement of the cylindrical rib piece as an elastic part is continuously promoted, and thus, heat transfer is enhanced, and thedescaling effect is increased.

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.

The invention provides a liquid-cooled plate heat exchanger, which includes 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, so A baffle and ribs 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 outside the second baffle. The third baffle plate and the fourth baffle plate surrounded by the third baffle plate, a plurality of ribs are arranged inside the first baffle plate; multiple ribs are arranged between the second baffle plate and the first baffle plate For the ribs, a plurality of ribs are arranged between the second baffle and the third baffle; and a plurality of ribs are arranged between the third baffle and the fourth baffle. The invention proposes a plate heat exchanger with a new structure, which can further improve the heat exchange efficiency and strengthen the heat transfer by arranging the cooperation between multi-layer fins and baffles.