39results about How to "Solve uneven heat transfer" patented technology

The invention relates to the technical field of heat radiation, particularly relates to a microchannel heat radiator and aims at further increasing the efficiency of the existing heat radiating device of an electronic device. The microchannel heat radiator comprises an upper cover plate, a lower cover plate, a fluid feeding unit, a fluid discharging unit and a plurality of heat exchange units, wherein each heat exchange unit is formed by reversely overlapping two heat exchange plates; each heat exchange plate is internally provided with a plurality of partition plates among which runners for allowing fluids to flow are formed; and the adjacent partition plates are intercrossed to form cavities. The partition plates of the adjacent heat exchange plates are crossed to form crossed and interconnected runners, so that the fluids can pass through different heat exchange plates; and due to the adoption of the flowing way, the flow paths of the fluids in the heat radiator are increased, flow routes are optimized, and heat exchange is more sufficient. In addition, due to the adoption of the design, the fluids in different runners can be mutually converged, hedged and dragged, the interaction between every two fluids can be enhanced, and the heat exchange effect can be improved.

The invention relates to a single-effect evaporator. The technical proposal is that the single-effect evaporator comprises a tube pass and a shell pass. A cylinder body of the tube pass, a sealing end of the tube pass and an upper cover of the tube pass constitute the tube pass, an alkaline liquid outlet, an anti-swirl baffle, a meter inserting tube, a liquid level meter inserting tube, a steam outlet and a liquid level meter alarm port are arranged on the tube pass, a wire mesh demister and a baffle are arranged in the tube pass; an expansion joint which is sleeved with a protective cover of the expansion joint and a protective support connects the upper and the lower cylinder bodies of the shell pass, and the two ends of a short joint of the shell pass are connected with the upper cylinder body of the shell pass and the sealing end of the shell pass; the sealing end of the shell pass is provided with an alkaline liquid inlet; the short joint of the shell pass is provided with a distributing cover, a receiving plate, a distributing plate and a downcomer; the steam inlet is connected with the lower cylinder body of the shell pass through a shell body and the annular plate; the lower cylinder body of the shell pass is provided with a condensate outlet; a tube supporting frame is arranged in the lower cylinder body of the shell pass; the short joint of the tube pass is connected with the lower cylinder body of the shell pass; a tube plate is provided with a heat exchange tube hole, a heat exchange tube penetrates the two ends of the tube supporting frame to be connected with the tube plate, and one end thereof is connected with a distributing tube. The single-effect evaporator improves the stability and the pull-out force of the heat exchange tube and reduces the energy consumption and the production cost.

The invention discloses a device and a method for synchronous in-situ measurement of linear displacement and straightness of a guide rail. For an integrated two-dimensional grating and guide rail, a two-dimensional grating is etched on the upper surface of a linear guide rail, and a reading head is embedded in a sliding block. The specific measurement method comprises the steps that when the sliding block moves on the guide rail, the reading head outputs two pairs of orthogonal sine and cosine signals at the same time, the sine and cosine signals are transmitted to an upper computer through anacquisition card after being subjected to filtering and analog-digital conversion, and displacement and straightness are solved on the upper computer through a method of counting edges through high-frequency pulses, wherein the linear displacement of the guide rail is solved through orthogonal signals generated by the grid lines perpendicular to the x axis, and the straightness of the guide railis solved through orthogonal signals generated by the grid lines perpendicular to the y axis. The method has the advantages of small guide rail pair mounting size, high positioning precision, multi-parameter synchronous in-place measurement and the like, and a new method is provided for displacement and straightness measurement of the guide rail.

The invention provides a heat exchanger which comprises a first casing, a main shaft and a heating device, wherein the first casing is provided with a first accommodating cavity for accommodating materials; the main shaft penetrates through the first accommodating cavity rotationally and is provided with a second accommodating cavity, and a heat exchanger medium is arranged in the second accommodating cavity; and the heating device penetrates through the second accommodating cavity and rotates synchronously with the main shaft, and a first end of the heating device penetrates out of the main shaft and is connected with a power supply. The heat exchanger effectively solves the problem of uniform heat exchange, and the structure is simple.

The invention discloses a phase change energy storage heat exchange device, and relates to the technical field of heat exchange equipment. The phase change energy storage heat exchange device comprises an electric heating box, the heat source output end of the electric heating box is connected with a water inlet pipe of a first energy storage device through a first heat storage control valve, thefirst energy storage device is provided with a water outlet pipe, and the water outlet pipe is connected with two heat source output pipelines. One heat source output pipeline is connected with the heat source input end of the electric heating box through a heat conduction oil pump and a second heat storage control valve, the other heat source output pipeline is connected with the heat source input end of a fan coil after passing through the heat conduction oil pump, a second heat release control valve and a second energy storage device, and the output end of the fan coil is connected with theheat source input end of the first energy storage device through a first heat release control valve. According to the phase change energy storage heat exchange device, phase change heat exchange energy storage can be achieved through off-peak electricity.

The invention discloses a directional accumulated-heat guiding rice cooker. The rice cooker comprises a heating plate, an inner container, an outer housing and an electric control device, wherein the heating plate comprises a panel shell, heating tubes, a heat accumulation layer and a thermal insulating layer; the heating tubes are clung to the inner surface of the panel shell; the heat accumulation layer and the thermal insulating layer are sequentially arranged under the heating tubes; the inner container comprises a container body made of a metal material and a conducting layer covering the container body; the thermal conductivity of the conducting layer is smaller than that of the container body; the outer housing is provided with an accommodating chamber with a top opening, the heating plate is positioned at the bottom of the accommodating chamber, the bottom of the inner container is in surface contact with the panel shell; a clearance is reserved between the side wall of the inner container and the outer housing so as to prevent the inner container from transmitting heat to the outside to form a thermal insulation mode; the electric control device is used for controlling the heating plate. The rice cooker can effectively improve the utilization ratio of heat, can transmit heat in all directions to solve the problem that rice is cooked incompletely, and has the characteristics of simple structure, low probability of thermal deformation of a plate body and long service life.

The invention discloses a device and a method for synchronously measuring the line displacement and straightness of a guide rail in situ. The integrated two-dimensional grating guide rail is to etch the two-dimensional grating on the upper surface of the linear guide rail, and the reading head is embedded in the slide block. The specific measurement method is as follows: when the slider moves on the guide rail, the reading head outputs two pairs of orthogonal sinusine and cosine signals at the same time, and after filtering and analog-to-digital conversion, it is transmitted to the host computer through the acquisition card, and the edge is counted by high-frequency pulses. Methods Calculate the displacement and straightness on the host computer; the linear displacement of the guide rail is obtained by the orthogonal signal generated by the grid line perpendicular to the x-axis, and the straightness of the guide rail is obtained by the orthogonal signal generated by the grid line perpendicular to the y-axis. The invention has the advantages of small installation volume of the guide rail pair, high positioning accuracy, multi-parameter synchronous on-site measurement, etc., and provides a new method for the displacement and straightness measurement of the guide rail.

The invention discloses a pipe flow balance device for a ground source heat pump, which comprises a control box, the inner wall of the control box is fixedly connected with a clamping block, one side of the clamping block clamps the pipeline body, and the bottom surface of the inner wall of the control box is fixedly connected with a The support frame is fixedly connected with a hydraulic cylinder at one end away from the control box, the right side of the hydraulic cylinder is movably connected with a telescopic rod, and the middle part of the surface of the telescopic rod is movably socketed with a connecting pipe. The pipeline flow balance device used for ground source heat pumps is equipped with a hydraulic cylinder, a telescopic rod, a hinge, a connecting block, an adjusting blade, a fixed plate and a rotating shaft, and the hydraulic cylinder drives the telescopic rod to expand and contract, so that the adjusting blade and the fixed plate rotate, thereby The regulating blades are used to adjust the flow rate inside the pipe body, so as to achieve the effect of regulating the pipe flow in the buried pipe, and achieve the goal of avoiding uneven heat transfer during use, so that it is more convenient to use.

The invention discloses a production device of a pipe body. The production device sequentially comprises a material mixing device, an extruding machine, a cooling device and a cutting machine from thefront to the back according to a technological process; the production device further comprises a pipe body surface detection device at the rear way of the cutting machine; and the cooling device comprises a cooling heat exchange pipeline and a water-cooling groove body assembly. The invention further discloses a method of producing a strengthening pipe body by using the production device of thepipe body. The production device and the method have the advantages that the strength is high, the cutting uniformity is good, and inferior-quality products are monitored on line.

The invention provides an evaporator assembly and a refrigerating device with the evaporator assembly. The evaporator assembly comprises a plurality of heat exchange tubes. The heat exchange tubes include the middle heat exchange tube in the middle of the overlook plane of the evaporator assembly and the first outer side heat exchange tube on the outer side of the overlook plane of the evaporator assembly. The first outer side heat exchange tube is located on the outer side of the middle heat exchange tube in the direction perpendicular to the direction of the heat exchange tubes. A liquid distribution tube assembly comprises a liquid inlet pipe and a plurality of liquid distribution tubes communicated with the liquid inlet tube. The multiple liquid distribution tubes include the first liquid distribution tube communicated with the middle heat exchange tube and the second liquid distribution tube communicated with the first outer side heat exchange tube, wherein the internal diameter of the first liquid distribution tube is larger than that of the second liquid distribution tube. According to the technical scheme, the problems that due to uneven heat exchange of different portions of an evaporator, the heat exchange efficiency and air conditioner refrigerating capacity are low, and oil consumption of a refrigerator car is increased in the prior art can be solved.

The invention relates to a heat exchanger and a gas water heater using the heat exchanger, comprising a shell (1) and a heat exchange tube (2) pierced in the shell (1), the shell (1) ) is provided with a housing inlet (11) and a housing outlet (12); it is characterized in that the housing (1) is also provided with multiple sleeves (3) arranged side by side, and these sleeves (3) are divided into There are at least two layers, and each layer has at least one casing (3); each casing is connected to the corresponding adjacent layer of casing; tube (3); the second heat exchange medium enters the corresponding casing in the adjacent layer after being discharged from each casing; the casing inlet at the lowest layer is connected to the casing inlet (11), and is located at the uppermost layer The casing outlet of the casing is connected to the casing outlet (12). The invention can fully extend the stroke and residence time of the second heat exchange medium, thereby further enhancing the heat exchange effect and efficiency, and has a compact structure and is convenient for processing.

The invention discloses an intelligent wall-hanging stove, and relates to the related technical field of wall-hanging stoves. The intelligent wall-hanging stove comprises a shell and a water return valve, a heat exchange bin is arranged at the upper end of the interior of the shell, an automatic igniter is arranged at the bottom of the heat exchange bin, a gas valve is arranged in the middle of the bottom of the shell and connected with the automatic igniter through a gas pipe, a cold water valve is arranged on the right side of the gas valve and connected with a first four-way valve through awater pipe, meanwhile, the first four-way valve is arranged on the right side of the lower end in the shell, the top of the first four-way valve is connected with a water tank through a water pipe, the water tank is connected with a water pump through a water pipe, the water pump is arranged on the right side of the water tank, the water pump is connected with a first three-way valve through a water pipe, and the first three-way valve is arranged on the upper side of the water pump. The intelligent wall-hanging stove has the capacity of temporarily storing return water, hot water can be conveniently used for domestic water after being cooled, and the practicability is improved.

The invention discloses a microchannel propane direct expansion solar heat pump water heater, which belongs to the field of solar heat pump and energy heating. It includes heat collector, condenser, heat storage tank, electronic expansion valve, compressor and related connecting pipelines. The heat collector includes header one and several microchannel pipelines. The adjacent microchannel pipelines pass through the collector Once the tubes are connected, a vacuum glass tube is placed outside each microchannel pipeline. The microchannel pipeline is an arc-shaped flat tube, and its concave surface of the arc faces the sunlight, and the vacuum glass tube is facing the convex surface of the microchannel pipeline. Reflective paint is applied on the inner surface side of the microchannel pipeline, and the reflective paint is used to collect the unused sunlight leaked from the gaps on both sides of the microchannel pipeline by using the reflective paint in the vacuum glass tube and reflect it to the convex side of the microchannel pipeline for secondary use. In the present invention, each component optimizes and controls energy utilization, reduces energy loss in an all-round way, and has the advantages of high equipment utilization rate, remarkable energy saving and environmental protection effect, and the like.

The invention relates to a freeze-thaw system for freezing, thawing or mixing process of biopharmaceutical materials, belonging to the technical field of bioengineering pharmaceutical equipment; including a freeze-thaw machine, a cooling and heating unit, an independent cabin, a partition, a driving mechanism and a swing mechanism The freeze-thaw machine is provided with an independent cabin; the cabin is provided with a corresponding partition, a driving mechanism and a swing mechanism; the partition is connected with the cooling and heating unit; A dividing plate is connected with the swing mechanism. While the two partitions moving relative to each other conveniently fix the biopharmaceutical materials, the entire partition ensures uniform temperature during freezing and thawing, and the mixing treatment of the biopharmaceutical materials by the rocking mechanism. It avoids the problem of asynchronous and uneven temperature treatment of biopharmaceutical materials in the process of freezing and thawing; solves the problems of no record, poor uniformity and low production efficiency in the process of freezing and thawing of biopharmaceutical materials.