92results about How to "Reduce the chance of freezing" patented technology

The invention provides an engine cylinder cover shield which comprises a shield body and a cover plate. The cover plate is arranged in the shield body, the cover plate and the shield body are separated, an oil gas pre-separation space is formed between the cover plate and the shield body, a first gas inlet communicated with a crankcase is arranged in the oil gas pre-separation space, and stacked oil baffles are arranged in the oil gas pre-separation space. Each oil baffle comprises a first extending portion extending upwards and backwards from the starting end, a second extending portion extending upwards and towards the starting end from the tail end of the first extending portion and a third extending portion extending downwards and backwards from the tail end of the first extending portion. A crankcase ventilation system adopting the engine cylinder cover shield is further provided. The shield and the system have the advantages of being good in oil gas pre-separation effect and avoiding adverse effect of low temperature on gas flowing.

Freeze protection of an on-board emissions treatment substance storage and distribution system in a vehicle includes moving the emissions treatment substance away from a primary fuel / vapor area after filling of the emissions treatment system. In one embodiment an on-board emissions treatment system has a fill tube with a portion extending into a primary fuel fill pipe to facilitate co-fueling of the primary fuel and emissions treatment substance. A pressure differential or vacuum is created in the emissions treatment fill tube after filling to move the emissions treatment substance away from a check valve disposed at the terminal end of the fill tube to prevent freezing of the check valve after filling. The emissions treatment substance may be moved out of the co-located portion of the fill tube to an area where passive or active heating of the fill tube may be applied.

The invention relates to a superhydrophobic deicing composite coating and a preparation method thereof. The preparation method includes the following steps: after surface cleaning treatment is performed on a substrate material, and insulating organic paint is sprayed on the surface of a substrate to form an insulation layer; uniformly distributed electrodes are arranged on the surface of the insulation layer, distribution of the electrodes is arranged according to a coverage range of a heating layer, and the range of the heating layer is uniformly divided; heating painting containing a graphene filling material is sprayed on the surface of the electrodes and the insulation layer to form a heating coating, wherein the heating filling material can be graphene or a mixed filling material of graphene and metal Ag; a low surface energy solvent and nanoscale SiO2 is mixed by a dispersion process to obtain hydrophobic paint, the hydrophobic paint is then sprayed on the surface of the heatingcoating to form a hydrophobic coating; and a concave-convex micro-nano structure is uniformly processed on the surface of the hydrophobic coating by a laser or microprinting method, thereby improvingthe hydrophobicity of the coating.

The invention provides a super-hydrophobic self-cleaning surface of a wind power vane and a preparation method, and belongs to the technical field of wind power equipment manufacturing. A resin coating on the surface of the wind power vane is densely covered with columnar micron-sized structures, the outer surface of each columnar micron-sized structure is coated with a large amount of nano particles, and thus micro-nano secondary structures are formed; the preparation method of the super-hydrophobic self-cleaning surface of the wind power vane comprises the steps that the columnar micron-sized structures are prepared through ablation on the resin coating on the vane surface by directly utilizing pulse lasers, the nano particles are generated through induction on the outer surface of eachcolumnar micro-sized structure simultaneously based on the inductive effect of the pulse lasers, and thus the micro-nano secondary structures which combine the micron-sized structures with the nano structures are formed. The preparation method is simple, good in technological compatibility and high in designability, and can be prepared in large areas. The super-hydrophobic self-cleaning wind powervane can effectively lower the pollution caused by weathered of the vane, the possibility of freezing is lowered, the average annual working time of a wind turbine generator and the wind energy utilization efficiency are improved, the service life of the vane is prolonged, and therefore the super-hydrophobic self-cleaning wind power vane has important application prospects.

The invention discloses an MEMS-based conformal air speed sensor. Systems and methods for measuring air speed which solve the problem of icing or blockage by creating an exterior surface on an aircraft that channels air and measures the pressure difference of the pressure through the airflow and the static pressure. This exterior surface cannot be blocked easily because air is always flowing when the aircraft is in motion, any external matter that could be on the exterior surface is readily visible, and the exterior surface can be heated to prevent icing. In addition, the exterior surface is made of a flexible material that is able to conform closely to the exterior shape of the aircraft. The preferred embodiments comprise microelectromechanical system pressure sensors placed under the air channels for measuring the pressure difference in each channel and an air speed processor for transforming the pressure differences into an air speed estimate.

The invention relates to an outdoor pan-tilt camera anti-icing structure. The outdoor pan-tilt camera anti-icing structure comprises a pan-tilt shell, a protection cover shell and a main shaft. The main shaft is transversely arranged on the pan-tilt shell in a rotating mode. The protection cover shell is fixedly arranged at one end of the portion, outside the pan-tilt shell, of the main shaft. An anti-icing mechanism controlled by a control unit is arranged in the gap between the pan-tilt shell and the protection cover shell. The anti-icing mechanism comprises a rotating wheel, a brushing disc and bristles, wherein the rotating wheel is arranged between the side wall of the pan-tilt shell and the main shaft in a rotating mode, the brushing disc is coaxially and fixedly arranged on the side wall of the rotating wheel, the bristles are fixedly arranged on the outer side end face of the brushing disc, the end portions of the bristles make contact with the side wall of the protection cover shell, and the rotating wheel rotates to drive the bristles to rotate. The control unit is connected with a temperature and humidity detection unit and a weight detection unit. The outdoor pan-tilt camera anti-icing structure is simple in structure and scientific and reasonable in design, the icing problem of the gap between a pan-tilt and the side wall of a protection cover is effectively solved, it is ensured that the pan-tilt camera can normally work all day long, and performance of the product is effectively improved.

The invention discloses a full-automatic railway transportation dust suppression sprinkling system which comprises a data management unit, a control unit, a dust suppression sprinkling device, a wagon number recognition device and a wagon detecting and sensing device, wherein the data management unit is used for completing the reading of wagon number data, sprinkling flow and solution concentration information, generating data to be stored in a database and providing basic data for each report form or application; the control unit is used for controlling the action of the dust suppression sprinkling device according to detected wagon speed and a carriage gap signal; the dust suppression sprinkling device is used for completing sprinkling and feeding back concentration, pressure and sprinkling quantity parameters of the sprinkling solution to the control unit; the wagon number recognition device is used for reading the wagon number information of the sprinkled wagon and sending the wagon number information to the control unit; and the wagon detecting and sensing device is used for measuring the wagon speed and the gaps at wagon joint in real time and feeding back the information to the control unit. The system has uniform sprinkling, and can well control the sprinkling at the wagon joint gaps, accurately control the sprinkling quantity of each carriage and produce sprinkling data by combining the wagon number.

The invention discloses a quartic eddy current type vegetable cleaning and disinfecting machine. The vegetable cleaning and disinfecting machine comprises a manual picking and conveying track, wherein the tail end of the manual picking and conveying track is connected with a vegetable cutter. The vegetable cleaning and disinfecting machine is characterized in that the rear end of the vegetable cutter is connected with a material lifting track, a cleaning pool A is connected behind the material lifting track, a screen plate conveying belt A is connected behind the cleaning pool A, a cleaning pool B is connected behind the screen plate conveying belt A, a screen plate conveying belt B is connected behind the cleaning pool B, a cleaning pool C is connected behind the screen plate conveying belt B, a vibration discharging sieve A is connected behind the cleaning pool C, a picking conveyor is connected behind the vibration discharging sieve A, a cleaning pool D is connected behind the picking conveyor, and a vibration discharging sieve B is connected behind the cleaning pool D. The quartic eddy current type vegetable cleaning and disinfecting machine has the advantages of being thorough in disinfection, reducing the mechanical damage to vegetables, and thoroughly removing dirt in the vegetables.

The invention belongs to the technical field of crop anti-freezing, and discloses an anti-freezing agent for crops.The anti-freezing agent is prepared from, by mass, 15-20 parts of polyethylene glycol, 10-15 parts of N,O-carboxymethyl chitosan, 1-2 parts of soybean hydrolyzed amino acid, 1-3 parts of calcium lactate, 1-3 parts of monopotassium phosphate, 0.01-0.03 part of 6-benzylamino adenine, 0.2-0.4 part of brassin, 0.02-0.04 part of diethyl aminoethyl hexanoate, 0.01-0.03 part of abscisic acid and 1000 parts of distilled water.The anti-freezing agent is good in anti-freezing effect and cannot cause excessive growth of plants.

The invention discloses an anti-freezing pre-warning control method and device for a circulatory water heater. The method comprises steps as follows: detecting a minimum inlet water temperature value of master and slave machines, a minimum outlet water temperature value of the master and slave machines and a minimum environment temperature value of the master and slave machines; judging whether the minimum environment temperature value of the master and slave machines is smaller than a first preset temperature value; judging whether a corresponding anti-freezing warning signal is generated according to the minimum inlet water temperature value and the minimum outlet water temperature value of the master and slave machines if the minimum environment temperature value of the master and slave machines is smaller than the first preset temperature value; warning according to the corresponding anti-freezing warning signal. Accordingly, whether anti-freezing treatment is required can be judged accurately, the misjudgment rate is reduced, a user or an administrator can be informed of anti-freezing treatment in advance, the probability that the circulatory water heater is frozen is reduced, and heavier economic loss is avoided.

The invention relates to an anti-freezing and heat-insulating fire-fighting liquid tank. A layer of framework is jointed with the outer wall of a tank body of the fire-fighting liquid tank; a rigid foam polyurethane thermal-insulation coating is filled in the framework; an aluminum plate or steel plate protective layer is adhered to the outer wall of the framework; a plurality of groups of snakelike metal radiating pipes are paved in series or in parallel on the inner wall of the tank body of the liquid tank; both ends of the metal radiating pipes are communicated with a water outlet and a water return opening of a fuel heater arranged outside the tank body of the liquid tank respectively; a water pump is arranged in the fuel heater; and a set of stirrer is arranged in the tank body of the liquid tank. The anti-freezing and heat-insulating fire-fighting liquid tank has the advantages that a heat-insulating layer is in complete fit with the tank body so as to insolate heat exchange between the fire-fighting liquid tank and the outside world to a maximum degree and keep the temperature of the fire-fighting liquid in the tank; the water pump on the fuel heater drives hot water in theradiating pipes to flow circularly, so the fire-fighting liquid in the tank is heated quickly; and the operation of the stirrer enables the water in the tank to keeps a flowing state, so that the possibility of icing of the water in the tank is reduced greatly.

Disclosed are a pumping concrete cleaning divider and an application method thereof. The pumping concrete cleaning divider is arranged on an outdoor pump pipe and comprises a cleaning divider pipe body A, a cleaning divider pipe body B and a knife valve. A circular flange A connected with the outdoor pump pipe is arranged at one end of the cleaning divider pipe body A, the other end of the cleaning divider pipe body A is in flange connection with one end of the cleaning divider pipe body B through a square flange, a flange cushion and bolts, a circular flange B connected with the outdoor pump pipe is arranged at the other end of the cleaning divider pipe body B. A divider outlet A is arranged on the wall of the cleaning divider pipe body A, and a divider outlet B is arranged on the wall of the cleaning divider pipe body B, and both the divider outlet A and the divider outlet B are provided with outlet covers. By the pumping concrete cleaning divider, the probability that concrete solidifies in the pump pipe is reduced, the risk of blockage of the pump pipe is decreased, and meanwhile, the safety of construction personnel is improved greatly.

The invention discloses an outdoor antifreezing and damp-proof type fire hydrant used for a low-temperature environment ship. A water inlet port of a fire valve is connected to a first end of a fire water pipe, the fire water pipe and the fire valve are arranged in a cabin wall, and a second end of the fire water pipe communicates with water source; a fire hydrant joint is arranged on the outer side of the cabin wall, and the fire hydrant joint is connected with a water outlet port of the fire valve in a direct communicating mode; an auxiliary pipeline is arranged in the cabin wall arranged outside the fire water pipe, a first end of the auxiliary pipeline communicates with the first end of the fire water pipe, and a second end of the auxiliary pipeline communicates with the second end ofthe fire water pipe; a first water pump is connected to the auxiliary pipeline; the first water pump is controlled to be started and stopped by a controller according to the temperature in the cabin wall; and the fire water pipe is located at the upper end of the fire valve, the fire hydrant joint is located at the lower end of the fire valve, and the outlet end of the fire hydrant joint is located at the lowest position of a water outlet pipeline arranged between the fire valve and the fire hydrant joint. According to the outdoor antifreezing and damp-proof type fire hydrant used for the low-temperature environment ship, normal using of the fire hydrant in cold areas like a polar region is guaranteed, and the situation that water cannot flow from the fire hydrant due to the fact that thefire hydrant is frozen is avoided.

The invention belongs to the field of ice and snow removal engineering vehicles, and relates to a high-flexibility layered ice and snow removal vehicle which comprises a vehicle, a lifting platform, an ice removal platform and a snow shoveling mechanism. A lifting frame is connected with two sides of the vehicle by vehicle fixing shafts and can be lifted under the control of two lifting hydraulic cylinders mounted above two sides of a vehicle front cover; two pairs of fixing plates with center holes are arranged at the front end of the lifting frame, the fixing plates are connected to holes in two sides of an ice removal frame by pin holes, an angle between the front ice removal frame and the ground can be controlled by two ice removal angle adjusting hydraulic cylinders fixed to two sides of the lifting frame, a motor fixing boss is arranged in the center of the ice removal frame, and two grooved V belt pulleys can be driven by the lower portion of a motor to drive two ice removal discs to remove snow; a snow shoveling barrier at the front end of the snow shoveling mechanism is used for shoveling the snow, four ball pairs are arranged at four corners of the back of the snow shoveling barrier, and four angle adjusting hydraulic cylinders and the ice removal platform are connected with one another to form a parallel mechanism. The high-flexibility layered ice and snow removal vehicle has the advantage that snow shoveling inclination angles can be flexibly controlled.

The invention provides an electronic throttle valve icing protection system, a control device and an automobile. The electronic throttle valve icing protection system is used for generating icing risk prediction information, communicating with human-computer interaction equipment according to user authorization information, and communicating with a control device on a specified vehicle according to the user authorization information, so that the control device on the specified vehicle performs throttle valve icing protection operation in a parking state. By means of the system, the icing risk of an electronic throttle valve can be predicted, and the problem that the electronic throttle valve cannot work normally due to icing is solved. The control device is used for collecting the environment temperature of the electronic throttle valve and icing state information, sending the environment temperature and the icing state information to the electronic throttle valve icing protection system, receiving an icing protection instruction sent by the electronic throttle valve icing protection system and carrying out throttle valve icing protection operation. The automobile utilizes the system to carry out icing protection on the electronic throttle valve or comprises the control device.

The invention relates to the technical field of intelligent home appliances, and discloses an air conditioner control method and device, and an air conditioner. The air conditioner control method comprises the following steps: the current coil temperature of an evaporator in the air conditioner conducting refrigeration operation is obtained; under the situation that the current coil temperature isless than the first set temperature, the current valve opening degree and the current frequency corresponding to the current coil temperature are determined according to the first corresponding relationship between the saved coil temperature range and the valve opening degree of an electronic valve as well as the second corresponding relationship between the saved coil temperature range and the operation frequency of a compressor; and operation of the air conditioner is controlled according to the current valve opening degree and the current frequency. In this way, by adjusting the circulating quantity of a refrigerant in a coil, the influence of uneven flow distribution of the evaporator is reduced, the probability of freezing of the evaporator is decreased, and the effects of frequencyreduction and freezing prevention are improved.

The invention relates to a heat preservation collecting well, which consists of a turf cover layer, an earth fill layer, heat preservation layers, block stone layers, a water permeable geotextile, and a water outlet. The bottom part of the well, a water outlet end face of a well mouth or the lateral surface of the well wall are provided with the heat preservation layers; two sides or one lateral surface of the well wall is provided with the water permeable geotextile; the block stone layers are stacked in the well; the top part of the well is the earth fill layer; the turf cover layer is above the earth fill layer; and the water outlet is connected with an underground drainage pipe. The heat preservation collecting well uses the water permeable geotextile to replace an inverted filter layer consisting of gravels and block stones of the prior measure to greatly improve construction speed, and uses an extrusion molding polyethylene heat preservation plate to produce double effects of water isolation and heat preservation so that the heat loss in the collecting well is little. The heat preservation collecting well has simple structure, easy and quick construction, and perfect heat preservation effect, is advantageous for drainage, reduces engineering frozen injuries caused by unsmooth drainage in winter, and can be widely applied to underground water collecting and draining systems for projects of highway, railway and the like in cold areas.

The invention relates to the agriculture application field, and specifically relates to a loquat fruit antifreeze ability improving method comprising the following steps: using steel frames or bamboo timber to build a flat shed in an orchard before the cold wave in the last ten days of December every year, the flat shed is required to be 0.5m higher than the tree height, and the frame is firm; covering a shield net on the surface of the shed; uniformly spraying plant antifreeze water solution on the whole tree for 2-3 time in every 10 days in a period from the last 10 days of December to the early and middle parts of January every year, wherein the plant antifreeze solution is attenuated 500 times, and the attenuation ratio is volume ratio; after antifreeze spraying in middle January every year, removing tops and lower branches for opened inflorescence, only 2-3 branches in the middle are kept and sleeved with bags, so the inflorescence can open in middle of the bags without making contact with the bag wall. The method is suitable for open field and facilities, can improve loquat fruit antifreeze ability, thus reducing production loss.

The invention provides an anti-frost-heaving and anti-flooding device for water conservancy projects. The anti-frost-heaving and anti-flooding device comprises a dam, a fixed frame, a water level measuring frame structure, a gate protection structure, gate lifting threaded rods, an air heating device, a flood draining guide pipe structure, an intelligent control alarm device, a drainage gate structure and a lifting connecting rod, wherein the fixed frame is fixed to the upper portion of the dam, and the water level measuring frame structure is installed on the front surface of the dam through bolts. According to the anti-frost-heaving and anti-flooding device for the water conservancy projects, fixed cross rods and pulleys are arranged, so that a protection effect on a gate body is improved, and the gate body is prevented from being stuck in a sliding groove; the air heating case, an air pump and an air guide pipe are arranged, so that heated air can be conveyed into water, the probability of water surface icing is decreased, and the anti-frost-heaving effect is improved; and flood draining water inlet pipes are inserted into the left side and the right side of the lower portion inside a flood draining pipe installing frame, sundries entering a flood draining pipe from the water surface can be reduced, the filtering effect on sundries in water is further improved by means of a filter screen, and therefore the flood draining effect is improved.

The invention relates to an anti-freezing drip irrigation apparatus with a drip irrigation nozzle cleaning function, which comprises a water tank, a first duct and at least two drip irrigation nozzles, as well as a water circulation mechanism and at least two dredging mechanisms. The water circulation mechanism comprises a second duct, a bypass pipe, a piston block, a cylinder and two one-way components; each dredging mechanism comprises a lifting ring, a wire mesh, a push bar, a spring, a first through hole and a power unit; each one-way component comprises a support plate, a cover plate, a second through hole and two slide bars; each power unit includes a fixing sleeve, a rotary shaft, a roller and a connection line. The water circulation mechanism in the anti-freezing drip irrigation apparatus enables a flow of water to cyclically run between the first duct and the water tank, so that chances for the flow of water to freeze are slimmed, and the anti-freezing drip irrigation apparatus is more practical; the drip irrigation nozzles can be dredged through the dredging mechanisms, so that chances for the drip irrigation nozzles to be blocked are slimmed, and drip irrigation effect of the anti-freezing drip irrigation apparatus is improved.

The invention discloses an anti-freezing intelligent water meter easy to clean. A water meter shell is provided with a cleaning anti-freezing assembly, a lithium battery is installed at the bottom end of the interior of a sleeve, a magnetic strip adheres to one end of a heat insulation film, a water control filtering assembly is installed at the bottom end of a water outlet branch pipe, and adjusting butt joint assemblies are installed at the end of a water inlet pipe and the end of the water outlet pipe correspondingly. The junction box is internally provided with an anti-leakage assembly. Connecting sealing openings are formed in the positions, corresponding to the water meter shell, of the top cover and the junction box correspondingly. After the water meter is installed, the heat insulation film defines an approximately semicircular structure, the resistance wires make contact with the outer side of the water meter shell, the outer side of the water inlet branch pipe and the outer side of the water outlet branch pipe, the contact parts are heated, and the water freezing probability is reduced. Water is pumped through the micro water pump, the surface of the dial plate is accelerated, the surface of the dial plate is flushed, sediments are washed away and reading is facilitated when the water passes through the small drainage holes, the two parts run through electric energy stored by the generator, extra power input is not needed, and resources are saved.

The invention discloses a refrigeration heat exchange pipeline assembly with the defrosting function. The assembly is used for the technical field of refrigeration heat exchange and comprises a pipeline with an inlet and an outlet, multiple continuous heat exchange fins are integrally arranged on the outer circumference of the pipeline, and the assembly further comprises an electric heating pipe fixed to the pipeline. The invention further discloses a refrigerant conveying pipe manufactured through a refrigeration pipeline heat exchange structure. Through the structure, efficient defrosting isachieved, the defrosting period can be greatly prolonged, and the refrigeration effect is improved. The electric heating pipe can remove frost on the fins and the outer wall of the pipeline, the defrosting frequency when an evaporator is used under the low-temperature environment is reduced, normal and efficient running of the evaporator can be ensured, the effective use rate of the refrigerationmedia is higher, the running efficiency of the evaporator is improved, and the assembly is more energy-saving and environment-friendly.

The invention relates to a charging device (10) for inductively charging an electrical energy store of a motor vehicle, comprising a primary coil (12) designed to induce a voltage in a secondary coilof the motor vehicle for charging the electrical energy store, and a lifting mechanism (14) designed to move the primary coil (12) between a storage position and a charging position. The charging device (10) comprises a control device (20) designed to operate the lifting mechanism (14) in a deicing mode in which the lifting mechanism (14) is moved between the storage position and the charging position in accordance with a predetermined movement cycle. The invention further relates to a method for operating a charging device (10).

The invention discloses an anti-freezing system for roads and bridges and belongs to the field of road maintenance. The anti-freezing system comprises a street lamp supporting seat, a subgrade, a supporting seat, a street lamp stand column and a mounting platform, wherein a solar panel is arranged at the upper end of the mounting platform; a lamp holder is fixedly mounted at the front end of the mounting platform; a fixed supporting block is arranged in the middle of the subgrade; a steel product supporting beam is arranged at the lower end of the subgrade; the subgrade is internally providedwith a plurality of water collection channels which are uniformly distributed; the water collection channels are mutually communicated; an anti-slipping layer is arranged on the surface of the subgrade; a water accumulation opening is formed in the supporting block. Two sides of the anti-slipping layer are obliquely arranged and an inclined angle is 5 to 8 degrees, and water flow on a bridge deckis collected into the water collection channels and then is discharged; an inclined anti-slipping layer design and a channel design of the water collection channels are adopted and the water flow on the surface can be rapidly and efficiently drained, so that the probability that the bridge deck is frozen is greatly reduced; the deicing effect of the system is improved; the anti-freezing system hasthe advantages of simple and reliable structure, energy saving and environment protection and no consumption of energy sources.

The invention discloses a laminating flat bag-type dust collector with a heat tracing function, and belongs to the technical field of dust treatment environment-friendly equipment. The laminating flatbag-type dust collector comprises a fan chamber and a filter chamber; wherein a fan is arranged at the top of the fan chamber, and an air outlet is formed in the side surface of the fan chamber; a filter bag is arranged in the filter chamber, a mesh is inserted in the filter bag, a heat tracing band is wound on the mesh and used for heating the filter bag, and the heat tracing band is connected with an external power supply through a wire. The laminating flat bag-type dust collector further comprises a rapping mechanism, and the rapping mechanism enables the filter bag to vibrate. According to the laminating flat bag-type dust collector, the heat tracing band can heat the filter bag, so that the filter bag is prevented from being blocked due to the fact that raw coal dehydration moistureis condensed and frozen under the influence of cold air temperature, and the dust treatment effect is improved.

A portable tank for storing waste material therein features a flexible bag which is closed and formed from flexible plastic material. The flexible bag includes an internal chamber; a continuous wall enclosing the chamber; and a coupler through the wall that is communicated with the chamber for connecting a hose that pumps the waste material therein. Furthermore, the portable tank features a heating wire arranged to generate heat and a holding structure on the flexible bag, which is arranged to press the wire against the wall for heating the waste material contained therein. The holding structure is a plurality of individual strips which in combination with the continuous wall form respective channels that receive the heating wire therein and guide the wire along the wall. The tank also features an outer covering for enclosing the flexible bag therein, which is made of an insulating material arranged to contain the heat.

The invention discloses a heat pump module unit and an anti-freezing control method thereof. The anti-freezing control method comprises the following steps of receiving a signal for entering an anti-freezing mode; and controlling a circulating water pump to operate, obtaining the circulating water temperature after first set time, and adopting different levels of anti-freezing operation modes according to different circulating water temperatures. According to the method, before the actual anti-freezing operation mode is selected, circulating water is controlled to circulate for a period of time so that water in the heat pump module unit can flow, the detected circulating water temperature is real, the situation of "false alarm" caused by local low temperature and the positions of sensors arranged on a circulating water return pipe or a circulating water outlet pipe is avoided, and the burden brought to the heat pump module unit and the energy consumption burden brought to a user due to frequent starting of an anti-freezing mode are avoided.

The invention relates to an energy-saving fog gun machine with an anti-freezing function. The energy-saving fog gun machine comprises a base, a water tank and a main body, and further comprises an anti-freezing mechanism and an energy-saving mechanism; the anti-freezing mechanism comprises a heating pipe, a condensation cover, a power cylinder, a friction ring, a friction disk, a water conveying pipe, a power pump, a driving shaft, a first propeller, a second propeller, two supporting assemblies and two or more penetrating holes; the energy-saving mechanism comprises a backflow pipe, two photovoltaic panels, two air cylinders and two water collecting tanks; and the supporting assemblies comprise supporting sleeves, springs and supporting rods. According to the energy-saving fog gun machinewith the anti-freezing function, water can be heated through the anti-freezing mechanism, the icing probability of the water is decreased, the practicability of the fog gun machine is improved, through the energy-saving mechanism, solar energy can be converted into electric energy, then the electric energy is supplied to the fog gun machine to be used, and the energy-saving property of the fog gun machine is improved.