618results about How to "Guaranteed cooling efficiency" patented technology

The invention provides a process nozzle and a system for gasifying water coal slurry. The process nozzle comprises a first oxygen channel, a water coal slurry channel, a second oxygen channel, a first cooling water jacket and a cooling water coil, wherein the first oxygen channel comprises a first oxygen channel inlet and a first oxygen channel outlet; the water coal slurry channel comprises at least one water coal slurry channel inlet and a water coal slurry channel outlet; the second oxygen channel comprises a second oxygen channel inlet and a second oxygen channel outlet; the first cooling water jacket comprises a first cooling water jacket inlet and a first cooling water jacket outlet; and the cooling water coil comprises a cooling water coil inlet and a cooling water coil outlet. The process nozzle is characterized in that: the first oxygen channel is positioned at the central position of the process nozzle; the water coal slurry channel is positioned between the first oxygen channel and the second oxygen channel and surrounds the periphery of the first oxygen channel; and the second oxygen channel surrounds the periphery of the water coal slurry channel. The process nozzle reduces the length of combustion flame more effectively, reduces the ablation of flame on a refractory brick, promotes the mixing and atomization of water coal slurry and oxygen and improves gasification efficiency.

The invention relates to a door body used for a cold storage and refrigeration device and the cold storage and refrigeration device. Particularly, the door body used for the cold storage and refrigeration device comprises a panel used for forming the front portion of the door body, a door liner used for forming the rear portion of the door body, two side frames used for forming the two side portions of the door body, a rear cover and a display control assembly. The rear cover is arranged between the panel and the door liner, and a containing cavity is defined by the rear cover and the panel. The display control assembly is arranged in the containing cavity. The two side frames are provided with through holes communicating with the containing cavity so as to form a heat dissipation channel transversely penetrating through the door body, air convective circulation is facilitated, heat is dissipated out in time conveniently, and accordingly the heat dissipation efficiency and effect of the display control assembly are ensured. The invention further provides the cold storage and refrigeration device. The cold storage and refrigeration device comprises a refrigerator body with a defined storage space and the door body, and the door body is directly or indirectly connected to the refrigerator body so as to open and/or close at least part of the storage space.

The invention discloses a refrigerator control method. The method includes the first step that temperatures of several compartments of a refrigerator are collected; the second step that working modes of the refrigerator are judged according to temperature change of the compartments, wherein the working modes include a conventional refrigeration control mode and a steady-state refrigeration control mode. When the refrigerator is in the conventional refrigeration control mode and at least one compartment among the several compartments requests for refrigeration, the refrigerator is controlled to carry out refrigeration until the several compartments meet refrigeration and halt conditions. When the refrigerator is in the steady-state refrigeration control mode and a refrigerating chamber requests for refrigeration, the refrigerator is controlled to carry out refrigeration until the several compartments meet refrigeration stop conditions. In the refrigerating process, the refrigeration frequency of the several compartments is not more than one. The refrigerator control method has the advantages of reducing refrigerator energy consumption, prolonging the service life of a compressor and guaranteeing the refrigeration efficiency of the refrigerator. The invention further discloses the refrigerator.

The invention discloses a radiating packaging structure of a semiconductor, which comprises a base plate, a frame, a radiating fin and a heat conducting interface material layer, wherein the base plate loads and is electrically connected with at least one chip; the frame is bonded to the periphery of the base plate; the radiating fin is provided with one bonding surface bonded to the frame, the bonding surface is additional provided with one heat conducting area, and the heat conducting area is provided with a barrier wall to surround and form a material limiting space; and the heat conducting interface material layer is arranged in the material limiting space. The chip is provided with a radiating surface stretching into the material limiting space. The heat conducting interface material layer is located between the heat conducting area of the radiating fin and the radiating surface of the chip. The material limiting space is used for preventing the overflow, voids or other defects of the heat conducting interface material layer during high-temperature manufacturing.

The invention relates to a high-pressure radiator of an external type bypass pressure release valve. The high-pressure radiator comprises an oil cooler, and further comprises a motor for driving the fan to work, wherein a fan cover is mounted at the front end of the oil cooler; a fan is mounted on the inner part of the fan cover; a mesh enclosure is mounted on the fan cover; a bypass pressure release valve is mounted at an oil inlet connector of an end enclosure of the oil cooler; an oil inlet is formed in the top of the bypass pressure release valve; the bypass pressure release valve is connected to an oil tank through a pipeline; and a one-way valve is mounted on the pipeline. The high-pressure radiator is compact and reasonable in structure, and is convenient to operate; the bypass pressure release valve is additionally arranged on the outer part of the radiator, so that when inner oil pressure of the radiator is tooth high, the bypass pressure relief valve works for conveying oil back into the oil tank through the pipeline, and therefore, the using reliability of the radiator is greatly improved, the working efficiency is improved, and the radiating efficiency is guaranteed.

The invention discloses a method and device for controlling a water cooled converter power cabinet and a water cooled converter adopting the method and device. A heat exchanger of the water cooled converter is indirectly controlled to be started and stopped through the master control system of a wind power system, and the difference value between the temperature of the environment inside the power cabinet and the water output temperature of the water cooled converter is controlled below a preset temperature difference corresponding to current humidity. When circulating water temperature is low, the heat exchanger is not started, and therefore a condensation phenomenon caused by the too low circulating water temperature is avoided. When the circulating water temperature is too high, the heat exchanger is indirectly started through the master control system, part of heat of circulating water is discharged out, the temperature of the circulating water is reduced, and therefore cooling efficiency is guaranteed. Therefore, on the premise that the control system of a wind turbine generator does not need to be improved and a water cooling system does not need to be provided with a heating device, dehumidification and condensation preventing control over the power cabinet is achieved, and control cost is greatly lowered.

The invention provides a projector (1) which comprises optical components arranged inside a sealed structure with an annular ventilation path, and a circulating fan (72) for cycling the air in the ventilation path. The sealed structure comprises a optical component used case body (46) with a inlet for air to flow inside and an outlet for air to flow outside; a plurality of air duct components used for leading air into the optical component used case body (46) and leading the air which flows out of the case body into the optical component used case body (46) again; and a cooling device (71) with thermoelectric conversion components. The cooling device (71), the circulating fan (72) and the optical component used case body (46) are sequentially arranged in the ventilation direction in the ventilation path. The air duct component (73) arranged at the front part of the ventilation path in the air duct components is made of a material with the thermo-conductivity less than or equal to 0.9W/ (m*K).

The invention provides a control method of refrigeration equipment with an inverter compressor. The control method comprises the following steps that when the refrigeration equipment is electrified, self checking is performed; if the self checking is passed, a noise reduction mode is started to control the inverter compressor to operate at a first preset rotating speed, and whether a rapid cooling mode or rapid freezing mode request signal is received or not is detected; if the rapid cooling mode or rapid freezing mode request signal is received, the refrigeration equipment is controlled to operate in a rapid cooling mode or rapid freezing mode, and the rotating speed of the inverter compressor is increased; after the refrigeration equipment refrigerates in the rapid cooling mode or rapid freezing mode, the refrigeration equipment enters a normal operating mode, wherein when the inverter compressor operates at the first preset rotating speed, noise generated by the inverter compressor is less than a preset value. By using the control method of the embodiment of the invention, the refrigerating efficiency of the refrigeration equipment can be guaranteed, the noise of the inverter compressor can be effectively reduced, customer complaints are avoided, and the market competitiveness of the refrigeration equipment (such as refrigerators) is improved.

The invention relates to an automatic dedusting air conditioner outdoor unit and belongs to the field of electric appliances. The outdoor unit comprises an outdoor machine, a heat dissipating board mounted at the outer side of the outer machine, a heat dissipating fan mounted on the heat dissipating board, a controller and a signal receiver, wherein a positive rotation controller, a reverse rotation controller, a direction change controller, a timer, a signal receiver and an alarm are arranged on the controller. The automatic dedusting air conditioner outdoor unit provided by the invention has the beneficial effect that through the inverted operation of the heat dissipating fan in the air conditioner outdoor unit, dust deposited at heat dissipating fins and other places can be cleared away, thus the refrigeration efficiency is ensured; the alarm is arranged, failure can be reported in time; and the air conditioner outdoor unit does not need to be manually cleaned, therefore resources and time are saved.

The invention discloses a low-cost high-power electronic device packaging technology. The technology comprises the steps that a chip and flange for packaging a high-power electronic device are prepared, a thick gold layer or a gold-tin layer is manufactured on the back face of the chip, a nickel layer and a thin gold layer are plated on the surface of the flange in sequence, and the chip and the flange are in surface mounting through gold-silicon eutectic welding or gold-tin eutectic welding. According to the low-cost high-power electronic device packaging technology, the thick gold layer or the gold-tin layer is manufactured on the back face of the chip, and the thin gold layer is plated on the surface of the flange, so that the good effect of gold-silicon eutectic welding or gold-tin eutectic welding is achieved, the void content of a hot interface layer between the chip and the flange is reduced, the radiating efficiency of the chip is ensured, the gold plating cost in the packaging technology is greatly reduced, and the number of working procedures is reduced.

The invention relates to a flexible microwave ablation needle under an ultrasonic endoscope. The flexible microwave ablation needle comprises a handle, a radio-frequency coaxial connector and a microwave radiating antenna, wherein the radio-frequency coaxial connector is arranged on the handle, the radio-frequency coaxial connector is connected with the microwave radiating antenna through a radio-frequency coaxial cable, the periphery of the radio-frequency coaxial cable is provided with a capillary tube and an inner tube in sequence, the radio-frequency coaxial cable is arranged in the capillary tube, the capillary tube is arranged in the inner tube, the inner tube comprises a first end portion and a second end portion, the first end portion extends to the microwave radiating antenna, thesecond end portion keeps away from the microwave radiating antenna, and the inner tube is tapered off gradually from the second end portion to the first end portion. The ablation needle can reach more lesion sites and has strong penetrability.

The invention provides a portable cold insulation box. The portable cold insulation box comprises a box body. The box body is made of a heat insulation material. A containing chamber is formed in the box body and provided with an opening. The box body is provided with a sealing door used for sealing the opening. A cold insulation device is arranged on the box body and comprises a Stirling motor. The cold end of the Stirling motor is directly or indirectly in contact with the interior of the containing chamber so as to guide cold into the containing chamber. A power support is further fixed to the box body and used for fixing a power source. The power source is connected with the cold insulation device and used for providing electric energy for the cold insulation device. Carrying is convenient, meanwhile, a good protection function is achieved, and the cold insulation effect is guaranteed; and meanwhile, cold is provided for the Stirling motor through the power source, and the cold supply efficiency is guaranteed. The cold insulation box is convenient to carry, suitable for narrow occasions and suitable for domestic application or personal application.

The invention relates to an Internet of things-based intelligent air cooling water cooler which comprises a main body, a base arranged below the main body, a heat dissipation opening formed in the upper part of the main body, an air feeding pipe arranged on one side of the main body and two water pipe fixing mechanisms arranged at the other end of the main body, wherein a display screen, a switch and a plurality of operation buttons are arranged on the main body. According to the Internet of things-based intelligent air cooling water cooler, after a water pipe is fixed through fastening units in clamping plates, a shrink unit is used for realizing connection between the water pipe and a water pipe connection opening, so that the flowing of condensed water is facilitated; due to the conical shape, the water pipe connection opening is applicable to connection with water pipes with any apertures; furthermore, a driving unit drives two air feeding units to introduce air, so that the air introduction volume of equipment within unit time is increased; therefore, the refrigeration efficiency of the water cooler is guaranteed, and the practicability of the equipment is improved.

The invention discloses a parallel-microchannel water-cooling base plate. The parallel-microchannel water-cooling base plate is characterized in that the baes plate comprises an upper aluminum plate body, a lower aluminum plate body, a cooling water inlet and a cooling water outlet; water-cooling channels are formed in the lower aluminum plate body; the upper aluminum plate body and the lower aluminum plate body are connected through MIG welding; the cooling water inlet is formed in the right sides of the upper aluminum plate body and the lower aluminum plate body; the cooling water outlet is formed in the left sides of the upper aluminum plate body and the lower aluminum plate body; and the cooling water inlet and the cooling water outlet communicate with each other through the water cooling channels.