9results about How to "Control temperature difference" patented technology

A combined type wound tube heat exchanger comprises a shell pass cylinder, the axial direction of the shell pass cylinder is the first direction, the radial direction of the shell pass cylinder is the second direction, and the first end and the second end of the shell pass cylinder are each provided with a shell pass connecting pipe for a shell pass medium to pass through; the first heat exchange tubes are arranged in the shell pass barrel in the first direction; first tube plates are arranged at the positions, corresponding to the two ends of the first heat exchange tube, of the shell pass barrel; the plurality of second heat exchange tubes are arranged in the first end part of the shell pass barrel along a second direction; the two second tube plates are oppositely arranged on the two radial sides of the first end of the shell pass barrel so as to support the two ends of the second heat exchange tube. The shell pass heat exchange efficiency is improved through the space at the end of the shell pass barrel. Meanwhile, due to the fact that the second heat exchange pipes are arranged in the second direction, the second heat exchange pipes can play a role in flow equalization, fluid distribution of shell pass media at the end of the shell pass barrel is improved, and then heat exchange dead angles are reduced.

The invention provides a 3D glass hot bending forming technology, and relates to the technical field of 3D glass preparation, and the 3D glass hot bending forming technology comprises the following steps: 1, designing and cutting plate glass according to 3D glass, and carrying out CNC finish machining, washing and drying to obtain plate original glass; step 2, loading the dried plate original glass into a mold, and preheating the plate original glass step by step in a multi-stage preheating station; 3, after the preheated and heated mold is moved to a hot pressing station, 3D glass in a preset shape is obtained by adjusting the temperature of an upper pressing plate and a lower pressing plate and adjusting the pressing speed and the load of the upper pressing plate; 4, the hot-pressed 3D glass mold is moved to annealing stations, and the minimum resilience effect of the 3D glass is achieved through step-by-step cooling of the multi-stage annealing stations; and step 5, taking out the 3D glass, cooling, cleaning, laminating, and finishing. The method is used for solving the technical problems that a traditional 3D glass hot bending process is difficult to meet the specification requirement that the size precision of a product is lower than 0.2 mm, and concave and convex points exist on the surface of the glass, and further grinding and polishing are needed.

The utility model discloses an immersed liquid-cooled battery pack. The immersed liquid-cooled battery pack comprises a battery pack shell, a battery module and insulating oil, the battery pack shell is provided with an oil injection port, and is provided with a module accommodating cavity as well as a bottom plate, a circumferential side wall and a top cover which are enclosed to form the module accommodating cavity; the at least one battery module is arranged in the module accommodating cavity; the battery module comprises a module shell and a single battery arranged in the module shell; the module accommodating cavity is filled with the insulating oil, and the insulating oil is configured to immerse the single batteries; a liquid cooling channel is arranged in the bottom plate, the battery pack shell is provided with a liquid inlet and a liquid outlet which are communicated with the liquid cooling channel, and the liquid inlet and the liquid outlet are connected with a circulating pipeline. The bottom plate of the immersed liquid-cooled battery pack is provided with the liquid-cooled channel, the non-flowing insulating oil is in full contact with the single batteries in the battery pack and exchanges heat with the single batteries, and the heat exchange medium in the liquid-cooled channel exchanges heat with the battery pack, the battery module and the insulating oil, so that the temperature rise and the temperature difference of the battery pack are controlled.

This utility model relates to a uniform glue coating device for printing rollers, belonging to the field of printing roller transfer equipment. It includes a glue tank mechanism and a glue tank adjustment mechanism. The glue tank mechanism includes a glue tank plate, a scraper, a glue tank bottom plate, glue tank blocks, and block positioning plates. The glue tank plate is fixedly mounted on the glue tank bottom plate by fasteners. The scraper is clamped between the glue tank plate and the glue tank bottom plate, with its edge in contact with the surface of the printing roller. The scraper, printing roller, arc-shaped concave surface, and glue tank blocks on both sides together form a semi-enclosed glue tank. The glue tank adjustment mechanism is used to adjust the position of the glue tank mechanism relative to the printing roller. A heat conduction channel is provided within the body of the glue tank plate, and a temperature sensor is installed on the glue tank plate. A heat conduction channel is also provided within the body of the glue tank bottom plate, and a temperature sensor is installed on the glue tank bottom plate. By controlling the temperature of the glue tank plate and the glue tank bottom plate, this application solves the technical problem of uneven glue coating on the printing roller caused by the thermal deformation of the scraper.

The present invention relates to a mesh belt type atmosphere oxidation furnace and a reoxidation method, belonging to the technical field of atmosphere furnaces. The invention comprises a heating mechanism, a feeding mechanism, an atmosphere detector, an exhaust mechanism and an air blowing mechanism, wherein the feeding mechanism is installed at the feeding end of the heating mechanism, a plurality of temperature zones connected in sequence are arranged in the heating mechanism, and heat insulation boards are vertically arranged between adjacent temperature zones, a cavity is arranged in the heat insulation board and air inlet grooves are opened on opposite sides of the bottom, the atmosphere detector is used to detect the atmosphere content in each temperature zone, the air blowing mechanism is installed at the feeding end of the heating mechanism and blows air into each temperature zone, the exhaust mechanism is installed on the top surface of the heating mechanism and the exhaust end is connected with the cavity, the exhaust end of the exhaust mechanism is in contact with the pipe wall of the air blowing end of the air blowing mechanism, and the exhaust mechanism discharges the gas in the temperature zone through the air inlet groove, and the present invention solves the problem that the existing MLCC needs to frequently adjust the heating element to control the stability of the temperature in the temperature zone during the sintering process.

The utility model relates to the technical field of semiconductor refrigeration, and provides a semiconductor refrigeration module and refrigeration device.The semiconductor refrigeration module comprises a semiconductor refrigeration chip, a conduction assembly and a radiator, the conduction assembly comprises a temperature conduction piece and a nylon heat insulation shell, and a containing cavity and a penetrating opening communicating with the containing cavity are formed in the nylon heat insulation shell; the temperature conducting piece is arranged in the accommodating cavity, and the hot end or the cold end of the semiconductor refrigeration chip is in contact with the temperature conducting piece through the penetrating opening; the radiator is used for dissipating heat of the heat conduction piece. According to the semiconductor refrigeration module and the refrigeration equipment provided by the invention, the cold leakage probability can be reduced.

The invention provides an epitaxial growth method and system, and the method comprises the steps: reducing the heating power of a reaction chamber before a silicon wafer completely enters the reaction chamber, so as to enable the temperature difference between a contact position and a non-contact position, which are used for being in contact with a supporting part, of the back surface of the silicon wafer in a loading process to be within a target temperature difference range; and / or, before the silicon wafer completely enters the reaction chamber, etching gas is conveyed into the reaction chamber so as to etch an upper quartz clock cover and / or a lower quartz clock cover of the reaction chamber, so that the cleaning treatment of the reaction chamber is realized; and loading the silicon wafer into the reaction chamber for epitaxial growth to obtain an epitaxial wafer. According to the method, the temperature inconsistency generated on the silicon wafer is effectively reduced, so that the temperature distribution tends to be uniform in the deposition process of the epitaxial layer, the generation of the Pin Nano defect of the epitaxial wafer is effectively inhibited, and the surface quality and the product yield of the epitaxial wafer are improved.

The utility model relates to the field of feeding equipment, in particular to a material suction bin which comprises a bin body and a constant-temperature pipeline. The top of the bin body is connected with a suction pipeline, and the bottom is connected with a blanking pipeline; the material suction pipeline comprises a first communication section, a second communication section and a third communication section which communicate with one another, the first communication section is used for feeding, and the second communication section is provided with a fan and communicates with the atmosphere; the constant-temperature pipeline is spirally wound in the bin body, one end of the constant-temperature pipeline communicates with the third communicating section, and the other end of the constant-temperature pipeline communicates with the discharging pipeline; a liquid inlet and a liquid outlet are formed in the bin body, the liquid inlet and the liquid outlet are communicated with the space, except the constant-temperature pipeline, in the bin body, and constant-temperature bath lotion circulates in the space, except the constant-temperature pipeline, in the bin body. Aiming at the technical problem that the existing suction bin has defects, the temperature difference of the insulating materials in the suction bin can be well controlled, and after different insulating materials are continuously added into the suction bin, the random mixing of the insulating materials is avoided as far as possible.

The utility model belongs to the technical field of power batteries, and discloses a battery cell assembly and a battery module. The battery cell assembly comprises a battery cell row, the battery cell row comprises a plurality of battery cells arranged in the first direction, in the battery cell row, a first heat insulation part is arranged between every two adjacent battery cells, each first heat insulation part comprises a longitudinal heat insulation part and a transverse heat insulation part, and the longitudinal heat insulation parts vertically extend and are fixed to the battery cells on the two sides respectively; the transverse heat insulation part horizontally extends and is respectively fixed with the battery cells on the two sides, and the transverse heat insulation part is positioned at the bottom ends of the battery cells. The transverse heat insulation parts can block the heat conduction structural adhesive placed below the battery cells, the heat insulation effect between the battery cells is good, and the safety of the battery module is good.