41results about How to "Avoid icy conditions" patented technology

The invention discloses an ice maker capable of preventing residual water from being frozen. The ice maker comprises a water feeding mechanism, wherein the water feeding mechanism includes a connecting bend. The connecting bend includes a flared end and a connecting end. A vertically arranged water inlet pipe is disposed at the connecting end. A downwards inclined water outlet pipe is disposed at the flared end. The water outlet pipe is positioned above a water guide tank in the ice maker, and is communicated with the water inlet pipe through the connecting bend. An included angle between the center line and the vertical line of the water outlet pipe is 70-80 degrees. As the technical form of the connecting bend is adopted, and the downwards inclined water outlet pipe and a corresponding air hole are arranged on the connecting bend, when a water inlet valve stops the water supply, the water in the water outlet pipe can sequentially drop into the water guide tank under the gravity effect along the inclined water outlet pipe by overcoming the surface tension and the atmospheric pressure under the effect of the air hole, so that the case that water is frozen in the water outlet pipe is prevented, and the operation stability of the ice maker is improved.

A refrigerating air-conditioner device is disclosed. A compressor is used for compressing a coolant into high temperature high pressure gas state, a condenser is introduced for radiation, so that thecoolant can be subject to heat release and liquefaction, then an expansion valve is used for restricting liquid coolant output by the condenser to pass through a first evaporator and a second evaporator in trace flow and to be subject to heat absorption and vaporization, the working temperature of the first evaporator is kept between 0 DEG C and 4 DEG C, so that the moisture in the air passing through the first evaporator is condensed into liquid state water and discharged, drier air passes through the second evaporator, and the working temperature of the second evaporator is kept below 0 DEGC, so that the flowing air is fast cooled, and finally the vaporized low pressure gas state coolant is led back into the compressor to form circulation; therefore, the situation of frosting or icing of the evaporators caused by condensed water in high humidity environment can be effectively avoided, thus effectively improving overall heat exchange efficiency.

The invention is suitable for the technical field of wind tunnel tests, and provides an icing wind tunnel anti-icing and deicing test method and system. The method comprises the following steps of: setting a periodic control law grid; carrying out a primary periodic electric heating anti-icing and deicing test; updating the periodic control law grid according to the following conditions to obtainan updated periodic control law grid: after the primary periodic electric heating anti-icing and deicing test is completed, if the surface of a to-be-tested part is still iced, increasing the on-statetime in the periodic control law grid; after the primary periodic electric heating anti-icing and deicing test is completed, if overflow ice appears on the surface of the to-be-tested part, increasing the off-state time in the periodic control law grid; and performing the periodic electric heating anti-icing and deicing test again by using the updated periodic control law grid. According to the icing wind tunnel anti-icing and deicing test method and system, the periodic control law is simple to set, and icing and ice overflowing are not prone to occurring after the test.

The invention discloses a process for treating domestic sewage in high and cold areas and discloses a device of the process. The process comprises the following steps: (1) sewage continuously flows into an anaerobic zone in an oxidation ditch and sequentially flows through an anoxic zone, an aerobic zone and a settling zone to be discharged, wherein a filler zone of a culture is arranged in the aerobic zone and the flow rate of sewage in the oxidation ditch is less than 0.15 m/s; aeration is carried out on sewage in the anoxic zone, the aerobic zone and the filler zone; and (2) sewage at the tail end of the aerobic zone returns to the anoxic zone; sewage in the settling zone partially returns to the anaerobic zone and the rest of sludge is discharged. The process and device disclosed by the invention are applicable to sewage treatment in high and cold areas and have the advantages of being simple in water treatment process, low in treatment cost, low in energy consumption, small in occupied area, excellent in treatment effect and the like.

The invention discloses a sensor arrangement method for a test of an air conditioning system, and relates to the technical field of air conditioning systems, in particular to the sensor arrangement method for the test of the air conditioning system. The arrangement directions of an air conditioning system respectively comprise an air conditioning assembly air outlet, a foot blowing air outlet, anarrangement principle of a thermocouple, an evaporator temperature sensor, a warm air core body, a condenser temperature sensor, an air conditioning tube temperature and pressure sensor, system flow,system oil content, a head temperature sensor, a foot temperature sensor, an overall vehicle air outlet and ambient temperature outside a vehicle. According to the sensor arrangement method for the test of the air conditioning system, the situation of icing on the surface of an evaporator can be effectively avoided; the temperature distribution on the surface of the evaporator under different working conditions cannot be understood accurately if the temperature sensors on the surface of the evaporator are arranged unreasonably, so that the arrangement of the temperature sensors of the evaporator is affected; and by the arrangement method, icing risks in an operating process of the system can be reduced or completely eradicated as far as possible.

The invention discloses an environment-friendly comprehensive cleaning device for a CHINA VI postprocessor, belongs to the field of vehicle postprocessor cleaning devices, and provides a postprocessorcomprehensive cleaning device integrating cleaning, backpressure testing and drying. According to the technical scheme, the environment-friendly comprehensive cleaning device for the CHINA VI postprocessor comprises a main control module, a drying module and a cleaning module, wherein the main control module is electrically connected with the drying module and the cleaning module, and the main control module is used for controlling the drying module and the cleaning module to operate; the drying module comprises a drying system used for drying the postprocessor; the cleaning module comprisesa vortex fan, a cleaning liquid flushing system, an air purging system, a cleaning platform and a three-way valve; and the vortex fan and the air purging system communicate with a first connector of the three-way valve, the cleaning liquid flushing system communicates with a second connector of the three-way valve, and the cleaning platform communicates with a third connector of the three-way valve.

The invention belongs to the field of pantograph maintenance, and particularly relates to a low-wind-resistance protection device for preventing a pantograph from icing, which comprises two fixed spheres, a fixing groove is formed between the two fixed spheres, and a fixing mechanism for connecting the two fixed spheres is arranged outside the fixed spheres. A conversion cavity is formed in each fixed sphere, an energy conversion mechanism is arranged in the conversion cavity, a fan is arranged in each fixed sphere, one side of the fan is communicated with the outside, the other side of the fan is communicated with a heating cavity, an eddy current mechanism is arranged in the heating cavity, and a temperature measuring mechanism for controlling the eddy current mechanism to work is arranged in each fixed sphere. According to the device, the vibration energy of the pantograph can be absorbed and converted into electric energy in a normal state, then the pantograph is heated by the electric energy in a resistance heating mode and an eddy current heating mode under the low-temperature condition, and the situation that the pantograph is frozen is avoided.

The invention provides a photovoltaic panel mounting frame convenient for accumulated snow cleaning and drying, which comprises a main body assembly and a transmission mechanism, and is characterized in that the main body assembly comprises a supporting plate body, an operation box body, a photovoltaic panel body, a mounting plate and a heating box; the transmission mechanism comprises a motor, a shaft rod, a first bevel gear, a second bevel gear and a threaded rod. The output shaft of the motor drives the shaft rod to rotate, the rotating shaft rod drives the internal thread plate body to move through the first bevel gear, the moving internal thread plate body drives the moving plate body to move, and the moving moving plate body drives the scraping plate to conduct snow removal work; and then hot water is uniformly sprayed to the surface of the photovoltaic panel body through the water spraying plate to perform ice melting work, and then the internal thread plate body which moves in the reverse direction drives the air spraying plate to perform hot air drying work on the photovoltaic panel, so that the accumulated snow cleaning efficiency is improved, the labor amount of workers is reduced, and the icing condition is avoided. And the generating capacity of the photovoltaic power generation panel is ensured.

The invention provides an evaporative cooling unit and a data center. The evaporative cooling unit comprises an outdoor channel, an indoor channel and a heat exchange device; the evaporative cooling unit further comprises a filter screen and a defrosting device which are arranged in the outdoor channel; the defrosting device is located on the side, close to an air inlet of the outdoor channel, of the filter screen; the defrosting device comprises a heat exchange film; a first channel and a second channel which are arranged in a crossed mode are arranged in a heat exchange film; wherein the first channel is in communication with an air inlet of the outdoor channel; the second channel is in communication with the indoor channel; the first channel is in communication with the second channel; the defrosting device further comprises a switch valve; and the switch valve is used for controlling the second channel to communicate with the indoor channel. When the temperature of the outside air is low, the second channel communicates with the indoor channel, the cold air in the outdoor channel can be heated by the indoor hot air, and the defrosting effect is achieved. When the temperature of the outside air is high, the outside air can be humidified through a water supply device, and the using effect of the evaporative cooling unit is improved.

The invention provides a water guide assembly for a dish ordering cabinet. The water guide assembly comprises the dish ordering cabinet. The upper portion of the dish ordering cabinet is provided witha refrigerating chamber, and the lower portion of the dish ordering cabinet is provided with a freezing chamber. The front face of the refrigerating chamber is provided with a refrigerating glass sliding door, the top of the refrigerating glass sliding door slides in an upper sectional material guide rail, and the bottom of the refrigerating glass sliding door slides in a middle sectional material guide rail. The top face of the freezing chamber is provided with a freezing glass sliding door, the top of the freezing glass sliding door slides in the middle sectional material guide rail, and the bottom of the freezing glass sliding door slides in a lower sectional material guide rail. A flow guide piece is connected between the middle sectional material guide rail and the lower sectional material guide rail so that the middle sectional material guide rail can communicate with the lower sectional material guide rail. The flow guide piece is internally provided with a water guide cavity,water feeding holes and water discharging holes, and the water feeding holes and the water discharging holes all communicate with the water guide cavity. The water feeding holes correspond to the middle sectional material guide rail in a matched manner, the water discharging holes correspond to the lower sectional material guide rail in a matched manner, and the lower sectional material guide railis internally provided with a drain hole. By the adoption of the water guide assembly, condensed drops in the refrigerating chamber can be discharged out of the dish ordering cabinet and cannot flowinto the freezing chamber to be frozen, and the water guide assembly is ingenious in overall structural design and wide in market prospect.

The invention is applicable to the technical field of aircraft anti-icing and deicing, and provides an anti-icing device which is characterized in that an anti-icing system is arranged at a pneumatic leading edge, micropores are partially or completely formed in a skin of a downstream wing of the anti-icing system, and a micropore skin is formed; at least one airtight cabin is arranged below the microporous skin; the aircraft further comprises a suction device, an air suction pipeline of the suction device extends into the airtight cabin, and an exhaust pipeline of the suction device is connected with an exhaust port in a wing. Micropores in the micropore skin can effectively'suck 'a turbulent boundary layer, can maintain most laminar boundary layers of the wing, can reduce the resistance of the aircraft and improve the separation control capability of a pneumatic surface, so that the fuel economy of the aircraft is improved, and the requirements of artificial laminar control and overflow water control are met at the same time by adopting one set of system; the deicing device does not need additional air supply, is simple in structure, can be modularly implemented, and can be conveniently applied to light aircrafts and unmanned aerial vehicle systems.

The invention discloses a calcium magnesium silicate pipeline heat preservation layer convenient to install, which comprises a pipeline body, the surface of the pipeline body is uniformly coated with an anti-corrosion layer, the outer side wall of the anti-corrosion layer is provided with a calcium magnesium silicate heat preservation plate, and the calcium magnesium silicate heat preservation plate is respectively composed of a composite heat preservation layer, a heat insulation layer and a waterproof layer from inside to outside. Supporting pipes are arranged on the upper outer side wall and the lower outer side wall of the calcium magnesium silicate heat preservation plate, and fixing mechanisms are arranged on the left sides and the right sides of the two supporting pipes correspondingly. A positioning block and a positioning groove are arranged to form clamping connection, accurate positioning is facilitated, then a connecting block is lifted upwards to enable an L-shaped rod to be clamped in a concave block, therefore, two supporting pipes are rapidly fixed, installation is convenient, it can be guaranteed that the two supporting pipes extrude a calcium magnesium silicate heat preservation plate through the tension of a spring, and the heat preservation plate can be conveniently and rapidly fixed. The calcium magnesium silicate heat preservation plate can be attached to the pipeline body, heat loss of the pipeline body is reduced, and therefore the heat preservation effect of the pipeline body is improved.

The invention relates to the technical field of concentration, in particular to a chloroprene concentration system which comprises a reaction concentration device and a condensing device, the condensing device comprises an initial condenser and a fractional condenser, gas passages of the reaction concentration device, the initial condenser and the fractional condenser sequentially communicate with one another, and a refrigerant inlet of the initial condenser communicates with a refrigerant outlet of the fractional condenser. Refrigerant passages of the initial condenser and the fractional condenser are connected in series to replace independent cooling, the problem that freezing is prone to occurring due to the fact that the temperature difference between frozen saline water and system heat exchange material flow is large when the initial condenser adopts the frozen saline water as refrigerant for independent cooling is solved, frequent deicing is avoided, efficient and stable production is guaranteed, the refrigerant consumption is reduced, and the purposes of saving energy and reducing consumption are achieved. The interior of the initial condenser can be prevented from being iced, the initial condenser does not need to be subjected to deicing treatment, the operation stability of the concentration system is guaranteed, the production efficiency is further improved, when the interior of the initial condenser is iced, online deicing is achieved, and the problem that a material system is polluted by CaCl2 saline water introduced into an original deicing process is solved.

The invention relates to the technical field of water quality detection, in particular to a sewage treatment device for water quality detection, which comprises a base, a mixing cylinder and a sample cylinder are arranged on the upper side of the base, the vertical height of the mixing cylinder is higher than that of the sample cylinder, and the mixing cylinder and the sample cylinder are fixedly arranged on the base through a support frame; a quantitative assembly is disposed inside the sample cylinder; a circular opening is formed in the lower end face of the mixing cylinder, a sealing disc is arranged in the circular opening in a matched mode, the sealing disc is rotatably connected with the mixing cylinder in a sealed mode, and a filtering assembly is arranged in the mixing cylinder; and a driving assembly for driving the stirring impeller and the micro water pump to rotate is arranged in the cylindrical shell. The sewage treatment device is used for water quality detection, has the effects of sewage sampling and sewage treatment, avoids unclear sampling caused by sewage precipitation during sampling, performs filtration while stirring during treatment, performs high-efficiency treatment action, and also has the effect of quantitative sampling.

The invention relates to an anti-freezing heat exchange assembly and an air conditioning defrosting system. The anti-freezing heat exchange assembly comprises a first heat exchanger and a defrosting heat exchange tube arranged below a heat exchange tube of the first heat exchanger. Defrosting water flows downwards to the defrosting heat exchange tube in the defrosting process, and the defrosting water is prevented from being deposited at the bottom of the first heat exchanger to be frozen. The first end of the defrosting heat exchange tube communicates with a first refrigerant port of the first heat exchanger, and during defrosting, a refrigerant flows out of the first refrigerant port and enters the defrosting heat exchange tube after passing through the first heat exchanger. The defrosting water is effectively prevented from icing on the defrosting heat exchange tube, so that the situation that a unit loses efficacy due to cracking in the defrosting process of an air conditioner system is avoided.

The invention discloses an ultrasonic wind sensor with a heating function, which comprises a shell, a mounting plate is arranged at an upper end of the shell, four support connecting columns are arranged on an upper end surface of the mounting plate and located at the edge, the four support connecting columns are of hollow structures, upper ends of the four support connecting columns are connected with a top cover, a compass is arranged on one side of the upper end of the top cover; four ultrasonic sensors are arranged on an upper end face of the mounting plate and located on the edge, and the four ultrasonic sensors are fixedly mounted among the four supporting connecting columns correspondingly; the top cover and the mounting plate are both in a disc shape, an edge of the top cover and an edge of the mounting plate incline downwards, a first heating strip is arranged in the top cover, a second heating strip is arranged in the mounting plate, the first heating strip corresponds to the downwards-inclined position of an edge of the top cover, and the second heating strip corresponds to the downwards-inclined position of the edge of the top cover; and the second heating strip corresponds to the downwards inclined part of the edge of the mounting plate.

The invention relates to an efficient sewage pumping station constructed by a municipality. The efficient sewage pumping station comprises a main body, a first underground wall body, a water inlet pipe, a first electric valve, a cutting pump, a first liquid level alarm, a second liquid level alarm, a third liquid level alarm, a main pump, an auxiliary pump, a second underground wall body, a main pump coupling device, an auxiliary pump coupling device, a second electric valve, a drain pipe, a control cabinet, a biogas generator, a biogas collection tank, a first warehouse body, a second warehouse body and the ground. According to the efficient sewage pumping station, a liquid level alarm is installed to monitor the liquid level of sewage, and the liquid level is fed back to the control cabinet; when the liquid level is very low, a pump is stopped and water is stored; when the liquid level reaches the pump starting liquid level, the main pump starts to work; when the liquid level is very high, the auxiliary pump starts to work together, thus the efficient discharge of the sewage is realized. Bamboo charcoal sound insulation cotton is arranged, on the one hand the noise generated during the work of a motor is absorbed, and uncollected odor gas is absorbed and used well. The power can be re-supplied when the system is powered down, and the back-up energy is provided for the system.