13results about How to "Avoid icing" patented technology

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

The application discloses a refrigerator and a running control method thereof. The refrigerator comprises an evaporator, a compressor, an evaporating chamber containing the evaporator, a compressor chamber containing the compressor and located below the evaporating chamber, and a drain pipe for discharging defrosting water in the evaporating chamber to the compressor chamber. The refrigerator further comprises a temperature sensor, a heat pipe heating assembly, an electric heating wire heating assembly, and a control unit. In the refrigerator structure, the heating speed of the heat pipe heating assembly and the electric heating wire heating assembly is different. Based on the specific running control method, the freezing phenomenon at the upper port position of the drain pipe can be effectively avoided, the defrosting water in the evaporating chamber can be smoothly discharged, and the energy consumption of the refrigerator can be greatly reduced.

The utility model discloses an adjustable closed tower air inlet grille, which belongs to the technical field of cooling towers and comprises a cooling tower main body, a first grille fixedly connected to the outer side wall of the cooling tower main body, a second grille slidably connected to the outer side wall of the cooling tower main body and a mounting frame fixedly connected to the outer side wall of the cooling tower main body. The outer side wall of the cooling tower body is fixedly connected with a motor, and the outer side wall of the cooling tower body is rotationally connected with a rotating rod. According to the adjustable closed tower air inlet grille, through cooperative use of the first grille, the second grille, the mounting frame, a motor, a rotating rod, a main gear, an adjusting plate, a synchronous rod, a connecting plate, a connecting rod and an auxiliary gear, the air inlet amount of the cooling tower main body can be conveniently controlled, meanwhile, the situation that when the air inlet amount is adjusted, multi-angle airflow directions appear is avoided, and the air inlet amount is more stable is avoided. Therefore, the situation that airflow collides after entering the cooling tower body, airflow turbulence is caused, the ideal air flowing order in the whole cooling tower is damaged, and even exchange and efficient discharge of heat are not facilitated is avoided.

The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery device of a heat supply water mixing system, which ensures temperature uniformity, improves heat exchange efficiency, reduces heat loss and improves energy utilization rate. Comprising a heat exchange cylinder, a heat exchange assembly, output components, stirring components and a heat preservation component, the heat exchange assembly is installed in the heat exchange cylinder, the stirring components are installed on the top of the heat exchange cylinder and located in the heat exchange cylinder, the output components are installed at the upper end and the lower end of the heat exchange cylinder, and the heat preservation component is located on the outer wall of the heat exchange cylinder.

The invention provides a vertical super-long-shaft fire pump for an ocean platform. The vertical super-long-shaft fire pump comprises a barrel, an external pipe, a centralizer, a heating device, a driving device, an anti-reversion device, a hydraulic component, a filter screen and a dosing device. According to the vertical super-long-shaft fire pump for the ocean platform, a main shaft of a hydraulic component is a super-slender shaft system, the maximum length of the shaft system reaches 40 m, the shaft system goes deep into seawater, water pumping and fire extinguishing are conducted through cooperation with a driving device, life and property safety is guaranteed, the requirement for safety and reliability is extremely high, and meanwhile through a centralizer fixedly installed on the surface of an external pipe, the pump is prevented from swinging, and the service life of the pump is prolonged. A heating device is used for preventing the phenomenon that seawater in an external connecting pipe is frozen due to cold weather in winter, a filter screen is matched with a dosing device to prevent marine organism growth, an electric fire pump anti-reverse device is arranged on a pump, a diesel fire pump anti-reverse device is arranged on a right-angle gear box, and after a pump shaft stops rotating, the diesel fire pump anti-reverse device is arranged on the right-angle gear box. The pump cannot rotate reversely, and reverse rotation of the pump is effectively prevented.

The application discloses a carbon dioxide safe release device. The device comprises: an air introduction system for introducing air into a first part of released CO2 to form a CO2 / N2 mixed gas; a first-stage heating system for receiving the CO2 / N2 mixed gas discharged by the air introduction system, converting the pressure energy of the first part of released high-pressure CO2 into internal energy to increase the temperature of the CO2 / N2 mixed gas; and a second-stage heating system for mixing a second part of released CO2 with the heated CO2 / N2 mixed gas to increase the temperature of the second part of released CO2. The application realizes the heating of released carbon dioxide by using high-pressure carbon dioxide, effectively inhibits the formation of dry ice, and realizes the safe and high-speed release of carbon dioxide.

This invention discloses a weather-resistant enhanced 1kV overhead insulated conductor, relating to the field of power cable technology. Several outer and inner air tubes are connected between two main air boxes located on the same axis. A rubber bladder is embedded between the outer and inner air tubes, and the rubber bladder is filled with microcapsule particles. Two pressure-resistant arc plates are embedded inside the pressure-resistant cavity. A torsion tube is connected between two adjacent pressure-resistant arc plates via two elastic arc plates. Torsion springs are connected between several adjacent torsion tubes. In this invention's pressure-resistant and cold-resistant components, the cable's flexibility is ensured when laying cables in low-temperature weather. In areas with large temperature differences, the cable's temperature change is more stable, preventing prolonged overheating or underheating. In the de-icing and heat dissipation components, the cable temperature is prevented from becoming too high in high-temperature weather and from icing in snowy weather. The two components work together to enhance the cable's weather resistance and improve its performance.

The utility model discloses a kind of comprehensive utilization systems of process cooling circulating water, process equipment is connected with cooling tower by pipeline, fan, water collector are arranged from top to bottom in cooling tower, spraying device, filler, wall type heat exchanger, water collecting tank;Process equipment is provided with pipeline and is connected with spraying device, process equipment is provided with pipeline and is connected with water collecting tank;Wall type heat exchanger includes inlet pipe and outlet pipe, inlet pipe and outlet pipe are connected by cooling pipe, cooling pipe between adjacent setting is cooling air duct;Cooling pipe is composed of two upper and lower partitions, the partition body inside of this partition is provided with internal support plate, partition body outside is provided with vertical spoiler and inclined spoiler;The running water of low temperature in summer is passed through wall type heat exchanger, reduces cooling tower air inlet temperature, improves the heat exchange efficiency of cooling tower;Solar heat collection module is used to prepare hot water in winter and access running water replenishment pipe, avoid the ice phenomenon of louver.

The utility model discloses a filler module and a cooling tower, and relates to the technical field of industrial cooling towers, the filler module is provided with first filler sheets and second filler sheets which are alternately stacked to form first flow paths and second flow paths which are alternately arranged, and the upper surface of the filler module is provided with a plurality of first upper end openings and second upper end openings; the first upper end openings are located in the middle of the upper end of the filler module, arranged in parallel in the stacking direction and communicated with the first flow path. The second upper end openings are located on the two sides of the first upper end opening, arranged in parallel in the stacking direction and communicated with a second flow path. The heat exchange part comprises first heat exchange parts which are alternately stacked in the stacking direction, are formed between the second packing sheets and the first packing sheets and are flat cavities; the second heat exchange part is formed between the first packing sheet and the second packing sheet and is a flat cavity; a first lower end opening and a second lower end opening which are alternately stacked are formed in the lower end of the heat exchange part.

The utility model relates to the field of water purification for fire fighting discloses a water purification device component special for fire fighting, including water pump, the output end threaded connection of water pump has adapter one, the port threaded connection of adapter one has the connecting pipe, the port threaded connection of connecting pipe has the heat preservation water collecting pipe, the heat preservation water collecting pipe is connected with water gun through pipeline, the water outlet threaded connection of water gun has adapter two, the port threaded connection of adapter two has the filter, the outer wall of connecting pipe is provided with freeze -proof component, the freeze -proof component includes fixed sleeve, in the utility model, through being provided with water pump, two groups of adapters, connecting pipe etc. structure, can be used in the case of disaster area rescue fire engine one thing, solve the situation that the clean water source is difficult to obtain in the disaster area, can avoid the freezing phenomenon that the water source in the water tank is extracted to lead to under the cold weather, improve the device use stability.

The utility model discloses a kind of solar-based drainage blind pipe anti-freezing anti-plugging device, including solar panel and circulating flow pipe, the bottom of solar panel is equipped with battery box, and the one end of battery box is connected with total controller;Circulating flow pipe includes the first horizontal pipe, the first vertical pipe, the second horizontal pipe and the second vertical pipe connected in turn;Circulating pump is provided on the first horizontal pipe, and the top of circulating pump is equipped with driving motor, and the one end of first horizontal pipe is provided with pipeline heater;Second horizontal pipe is through in drainage blind pipe main body, and temperature sensor is provided on the outer surface of second horizontal pipe.The utility model passes through the heat transfer to the water flow of circulating flow, and the side of drainage blind pipe main body is heated by the flow of hot water, prevent the phenomenon that ice forms in drainage blind pipe main body, while the battery box is recharged by solar panel, maintain the electric power required for each device operation, realize the self-operation of overall device.

This invention discloses an indirect evaporative cooling air conditioning system and its control method, relating to the field of air conditioning technology. Its main purpose is to prevent condensation or icing in the air-to-air heat exchange core when the external circulation inlet air temperature is low. The main technical solution of this invention is as follows: The indirect evaporative cooling air conditioning system includes: an air-to-air heat exchange core, comprising an external circulation inlet side and an internal circulation outlet side; an external circulation inlet chamber, connected to the external circulation inlet side; and an inlet regulating component, disposed within the external circulation inlet chamber, for guiding the external circulation airflow from the area of ​​the external circulation inlet side near the internal circulation outlet side into the air-to-air heat exchange core.

This invention discloses a heating-type humidity sensor system based on heterogeneous structure decoupling, and its fabrication and calculation method, relating to the fields of meteorological detection and semiconductor humidity sensor technology. The system includes a detection and control circuit, a humidity measuring unit, a temperature measuring unit, and a heating module. The humidity measuring unit and the temperature measuring unit are independently fabricated physical units, each equipped with a humidity-sensing element and a temperature-sensing element, respectively, and are combined and packaged through a two-dimensional homogeneous parallel configuration, a vertical stacked configuration, or a horizontally coplanar splicing configuration. The heating module is controlled by the detection and control circuit to implement equal-power synchronous heating or planar co-heating of the combined package. The detection and control circuit adjusts the heating power based on the temperature feedback closed-loop of the temperature measuring unit, keeping the difference between the working temperature of the humidity-sensing layer of the humidity measuring unit and the temperature measured by the temperature measuring unit within a preset equivalent threshold. During fabrication, the humidity measuring unit and the temperature measuring unit are fabricated separately and screened at the die level before being combined and packaged to form a heating module thermally coupled to the combined package. During measurement, the temperature of the temperature measuring unit can be used as the equivalent input of the working temperature of the humidity-sensing layer of the humidity measuring unit to perform temperature compensation for the humidity-sensitive response, and the relative humidity of the free atmosphere can be inverted based on the absolute water vapor partial pressure relationship. This invention can reduce wiring congestion, hot spots, process constraints, and the risk of scrapping the entire board in single-substrate integrated structures, and improve the sensor manufacturing yield and the accuracy of high-altitude low-temperature humidity measurement.