6 results about "Micro heat exchanger" patented technology

The invention discloses a divided water tank device for an internal heat exchanger of a split type solar water heater. Butt welding is carried out by utilizing an end enclosure of a stainless steel confined water bank inner bag; the end enclosure is used as the heat exchanger to play the role of a water tank partition board; the water tank is divided into independent divided cavities; the heat exchanger is sealed with the inner bag of the water tank; the adjacent cavity bodies communicate with each other via draught tubes; the medium circulation and the medium supplement, namely unconfined running of the heat exchanging part, are carried out safely and reliably via an upper circulating pipe and a heat collecting part; and the device can fully improve heat energy transformation and reduce heat loss.

The invention discloses a reaction extraction coupling continuous flow system and method for synthesizing glyoxylic acid in a microchannel. According to the system, a first liquid storage device is connected with a first constant flow pump, and the first constant flow pump is connected to a first micro heat exchanger; the second liquid storage device is connected with a second constant flow pump; the second constant flow pump is connected to a second micro heat exchanger; the first micro-heat exchanger and the second micro-heat exchanger are connected to an inlet of the first micro-mixer, an outlet of the first micro-mixer is connected to an inlet of the second micro-mixer, and a first micro-channel reactor is arranged between the first micro-mixer and the second micro-mixer; the third liquid storage device is connected to an inlet of the second micro-mixer through a third constant flow pump; an outlet of the second micro-mixer is connected to a collecting device, the collecting device is arranged in a temperature adjusting device, and a second micro-channel reactor is arranged between the second micro-mixer and the collecting device; according to the invention, the problem of low glyoxal synthesis reaction efficiency in the prior art is solved.

A refrigeration appliance and a method for operating a refrigeration appliance are described. The refrigeration appliance has a refrigerator compartment and a freezer compartment, each connected to an evaporator chamber in which an evaporator designed as an MCHE heat exchanger is arranged. An airflow is circulated between the evaporator chamber and the refrigerator compartment and between the evaporator chamber and the freezer compartment by means of a fan. The method includes defrosting the evaporator by operating the fan to circulate an airflow between the evaporator chamber and the refrigerator compartment while the supply of refrigerant to the evaporator is interrupted.

The application discloses a forced air cooling device for earthwork cells, which comprises a bottom plate, a mounting plate arranged on the top of the bottom plate, an air inlet structure arranged on the top of the mounting plate, an air inlet plate arranged on the top of the mounting plate, an air inlet channel arranged in the air inlet plate, communication pipes arranged on the two sides of the air inlet channel and connected with air blowing devices, a plurality of micro heat exchangers arranged on the bottom of the air inlet plate, air vent bottom grooves arranged on the two sides of the bottom of the air inlet plate, and a sliding plate arranged on the bottom of the air inlet plate; a box is arranged below the micro heat exchanger, an electric push rod is arranged in each box, and an ultrasonic welding head is arranged at one end of the electric push rod; the air inlet structure is arranged, the air blowing devices arranged on the two sides of the air inlet plate form convection in the air inlet channel, and the cooling air can uniformly flow to the cooling structure below; the sliding plate is arranged, the sliding of the sliding plate can control the communication of the air vent bottom grooves, the air in the air inlet channel can overflow from the air vent bottom grooves, and the devices below and the earthwork cells can be cooled and radiated.

The application discloses a kind of multilayer regional photolithography objective lens surface temperature control device.The cooling element includes multilayer internal flow passage non-interference cooling module, the first cooling medium is circulated in the internal flow passage of cooling element, the second cooling medium is circulated in the gap between the inner wall of cooling element and the outer wall of objective lens, and the third cooling medium forms air curtain between the outer wall of cooling element and the external environment;Micro heat exchanger is arranged at the inlet of each cooling module, and flow regulating valve and flow meter are arranged at the outlet;The temperature and flow of the first, second and third cooling medium flowing in are dynamically regulated and controlled by the host computer.The application can form a non-uniform cooling intensity field matched with the non-uniform thermal load of the objective lens through the synergistic effect of multilayer medium and the independent control system of multiple input and multiple output, thereby significantly improving the temperature uniformity, control accuracy and response speed of the objective lens surface of the photolithography machine.

The application discloses a kind of multilayer regional photolithography objective lens surface temperature control device.The cooling element includes multilayer internal flow passage non-interference cooling module, the first cooling medium is circulated in the internal flow passage of cooling element, the second cooling medium is circulated in the gap between the inner wall of cooling element and the outer wall of objective lens, and the third cooling medium forms air curtain between the outer wall of cooling element and the external environment;Micro heat exchanger is arranged at the inlet of each cooling module, and flow regulating valve and flow meter are arranged at the outlet;The temperature and flow of the first, second and third cooling medium flowing in are dynamically regulated and controlled by the host computer.The application can form a non-uniform cooling intensity field matched with the non-uniform thermal load of the objective lens through the synergistic effect of multilayer medium and the independent control system of multiple input and multiple output, thereby significantly improving the temperature uniformity, control accuracy and response speed of the objective lens surface of the photolithography machine.