61results about How to "Improve heating effect" patented technology

The utility model discloses an air conditioner indoor unit. The air conditioner indoor unit comprises a unit body, and the unit body comprises a shell, a first air outlet, a second air outlet, a return air inlet and an air duct arranged in the shell, the first air outlet is formed in the front side of the shell. The second air outlet is formed in the bottom of the shell. The return air inlet is formed in the top of the shell. The air inlet end of the air duct communicates with the air return opening. The air outlet end of the air duct communicates with at least one of the first air outlet and the second air outlet. In the refrigeration mode, the air outlet end of the air duct communicates with the first air outlet, discomfort caused by direct blowing of cold air to the human body is effectively reduced, in the heating mode, the air outlet end of the air duct communicates with the second air outlet, it is guaranteed that hot air flows downwards and directly reaches the ground, and the good heating effect and use experience are achieved. In conclusion, cold air can be conveyed upwards, hot air can be conveyed downwards, and the use comfort of a user is remarkably improved.

The invention discloses a flat pipe, a heat exchanger, a vehicle heat management system and a vehicle, and belongs to the technical field of vehicle heat management. The flat pipe forms a first flow channel and a second flow channel which are separated and arranged side by side, the first flow channel is suitable for circulation of a first heat exchange medium, and the second flow channel is suitable for circulation of a second heat exchange medium. Through the partition integrated design of the first flow channel and the second flow channel, the overall structure of the flat pipe is simplified, the overall heat resistance is reduced, and the heat exchange efficiency is greatly improved, so that the heat management effect of the vehicle heat management system is optimized, meanwhile, the machining difficulty and machining cost of the flat pipe are reduced, and the production efficiency is improved. Therefore, large-scale production and popularization and application are facilitated.

This invention provides a thermal management system for a new energy vehicle and the new energy vehicle itself, comprising: a first heat exchanger; a refrigerant circuit, the refrigerant circuit including a first circuit mode; in the first circuit mode, the refrigerant circuit is cyclically connected to an air conditioning compressor, the first heat exchanger, a front air conditioning evaporator, and an outdoor heat exchanger; and an air conditioning heating circuit, which is coupled to the refrigerant circuit for heat exchange through the first heat exchanger, and is located downstream of the front air conditioning evaporator in the direction of the heating airflow, used to heat the heating airflow that has already been heated by the front air conditioning evaporator. The refrigerant that has undergone heat exchange at the first heat exchanger can dissipate its remaining heat to the surrounding environment at the front air conditioning evaporator. Furthermore, since the front air conditioning evaporator is located upstream of the air conditioning heating circuit in the direction of the heating airflow, the external environmental heat absorbed by the refrigerant at the outdoor heat exchanger is reused, further improving the utilization rate of external environmental heat.

The invention relates to a controller control method and device, electronic equipment, a medium and a program product. The controller control method comprises the steps that frosting information of the outdoor heat exchanger is obtained, wherein the frosting information is used for representing the frosting condition of each defrosting area; according to the frosting information, a target circulation branch connected with the defrosting branch is determined in the first circulation branch; and the target circulation branch and the defrosting branch are controlled to be conducted through the switching device, so that a refrigerant medium in the defrosting branch flows into the target circulation branch under driving of the compressor, and a defrosting area where the target circulation branch is located is defrosted. Therefore, the purpose of defrosting different defrosting areas in a targeted mode is achieved, the defrosting effect is improved, then the heating performance of the air conditioner and the comfort experience of a user are improved, and electric energy is saved.

The utility model provides a kind of ceiling type air conditioner indoor unit, comprising: shell, with first air port, second air port and with first air port and second air port all intercommunication air cavity, air cavity includes first flow channel, intercommunication channel and second flow channel connected in turn;First volute tongue has the first flow-limiting position cooperation with fan and the first avoidance position of avoiding fan and forming for airflow flow first avoidance port;Second volute tongue has the second flow-limiting position cooperation with fan and the second avoidance position of avoiding fan and forming for airflow flow second avoidance port;Wherein, when first volute tongue is in first flow-limiting position, second volute tongue is in second avoidance position;When first volute tongue is in first avoidance position, second volute tongue is in second flow-limiting position.Through the technical scheme provided by the utility model, the technical problem that the comfort is lower due to the fixed air supply direction of the ceiling type air conditioner indoor unit in the prior art can be solved.

This utility model discloses a biomass thermal energy storage and heating device, relating to the field of thermal energy storage technology. It includes a tower body with an air outlet, a water return inlet, an air inlet, and a water return outlet at its upper and lower ends, respectively. The air outlet and air inlet are vertically aligned, as are the water return inlet and water return outlet. The tower body is equipped with layered partitions that divide the interior into multiple filling cavities. Each filling cavity is filled with a heat-storing medium. Each filling cavity also has vertical partitions, with multiple partitions dividing the filling cavity into multiple non-connected areas. By dividing the filling cavity into multiple areas through these partitions, this utility model allows for the simultaneous introduction of air and water for heat exchange without mutual interference, thus achieving simultaneous heat storage and release. This makes it more convenient to use and provides better heat storage and heating effects.

This utility model relates to the field of heating equipment technology, and in particular to a clamp-on suspended heater, comprising a housing having a mounting cavity and a ventilation duct communicating with the mounting cavity, and a drainage hole on the outer wall of the housing; a suspension assembly mounted on the outer wall of the housing for suspending the housing; a heating assembly mounted within the mounting cavity; a ventilation assembly mounted within the mounting cavity with its outlet facing the heating assembly; and a control assembly mounted within the mounting cavity and electrically connected to the heating assembly and the ventilation assembly. This utility model facilitates quick fixing of the heater in a suitable position and reduces the impact of humid environments on the electrical circuitry.

The application discloses a control method of an electronic expansion valve of an air conditioner, and the control method comprises the following steps: obtaining the indoor environment temperature of the air conditioner during the low-temperature heating process of the air conditioner or when the air conditioner enters the low-temperature heating process; and reducing the opening degree of the electronic expansion valve of the outdoor unit of the air conditioner according to the difference between the user-set temperature and the indoor environment temperature. The application further discloses a control device of the electronic expansion valve of the air conditioner, an air conditioner and a computer storage medium. According to the difference between the user-set temperature and the indoor environment temperature, the opening degree of the electronic expansion valve of the outdoor unit is reduced when the air conditioner is in the low-temperature heating process, so that the evaporation temperature of the outdoor unit is reduced, the heating capacity of the indoor unit is improved, the indoor temperature is raised faster, and the indoor heating effect is improved.

The heat pump water system comprises indoor heat exchange equipment, a heat pump device, auxiliary heat exchange equipment and a valve assembly, and the heat pump device communicates with a water inlet of the indoor heat exchange equipment through a first water supply pipeline and communicates with a water outlet of the indoor heat exchange equipment through a first water return pipeline; the auxiliary heat exchange equipment is communicated to the first water supply pipeline through a second water return pipeline and a second water supply pipeline; the valve assembly is arranged on the second water return pipeline and / or the second water supply pipeline and used for adjusting the flow of water flowing from the second water return pipeline to the second water supply pipeline through the auxiliary heat exchange equipment. According to the heat pump water system, the water flow flowing to the auxiliary heat exchange equipment can be adjusted by controlling the valve assembly according to the series complementary structure of the heat pump device and the auxiliary heat exchange equipment, the problem that the effect of an independent heat pump device is poor is solved, and therefore the heating effect of the heat pump water system is improved.

The application provides a refrigeration system, a control method of the refrigeration system and an air conditioner. The refrigeration system comprises a compressor, an indoor heat exchanger and an outdoor heat exchanger, the exhaust port of the compressor is connected with the indoor heat exchanger, the indoor heat exchanger is connected with the outdoor heat exchanger, the outdoor heat exchanger is connected with the suction port of the compressor; a defrosting heat exchange device has a refrigerant inlet and a refrigerant outlet, the refrigerant inlet of the defrosting heat exchange device is connected between the exhaust port of the compressor and the indoor heat exchanger in an on-off manner, the refrigerant outlet of the defrosting heat exchange device is connected between the outdoor heat exchanger and the suction port of the compressor; and at least part of the defrosting heat exchange device is arranged on the indoor side of the outdoor coil of the outdoor heat exchanger, so as to heat the refrigerant in the outdoor coil and realize defrosting. The refrigeration system of the application ensures that the defrosting process is completed in a non-stop state, and the indoor heating is normally carried out in the defrosting process, thereby avoiding the defect that the indoor temperature is lowered in the conventional defrosting mode and improving the use experience of the user.

The utility model is suitable for water treatment device technical field discloses a kind of drinking water equipment, including cold water waterway and with cooling module, heating module cooling unit, hot water waterway and auxiliary pump module.The cold water waterway is connected to the cooling module to make the cooling module absorb the heat of water in the cold water waterway.The hot water waterway is connected to the heating module to make the water in the hot water waterway absorb the heat generated by the heating module to prepare hot water.The hot water waterway is connected to the cold water waterway and / or contact the cooling module by the auxiliary pump module, to pump the water in the hot water waterway to the cold water waterway and / or the cooling module.The water with higher temperature is pumped to the cold water waterway and / or cooling module, and the temperature of water in the cold water waterway for being cooled by cooling module and / or cooling module is thus increased, so that the cooling unit continues to cool even increases power, so that more heat is emitted, and the heating capacity is improved.

The utility model relates to electronic atomization technical field, concretely is a kind of novel heating body structure.A kind of novel heating body structure, including heating pipe and heating element, the heating element has heating part and lead part, the heating pipe outer wall is equipped with accommodating cavity, the heating part is placed in the accommodating cavity, the accommodating cavity inside is filled with heat-conducting insulating material, the heating element uses independent control scheme.The utility model can reduce the influence of heating pipe base material on heating efficiency, with the advantages of compact structure, easy to assemble, simplify production process.Meanwhile, each heating element can work independently, so that the heating pipe circumferential side each heating area can be controlled respectively, improve the flexibility of use.

The utility model relates to the technical field of track iron teeth, and discloses a track iron tooth heating device which comprises a box body, a through groove is formed in the side edge of the box body, a partition plate is fixedly installed at the middle end in the box body, a movable groove is formed in the upper surface of the partition plate, a telescopic rod is fixedly installed on the side wall in the movable groove, and a discharging groove is formed in one side of the bottom of the movable groove. Four sets of supporting pieces are oppositely and fixedly installed at the bottom end of the box body, a heater is fixedly installed in the middle of the top end of the box body, a material box is installed on one side of the top end of the box body in a penetrating mode, a movable plate is fixedly connected to the top end of a telescopic rod, a leakage groove is formed in the upper surface of the movable plate in a penetrating mode, and the telescopic rod drives the movable plate to precisely control alignment and switching of the leakage groove, the material box and a discharging groove. Automatic feeding and discharging of the caterpillar band iron teeth are achieved, the operation efficiency is greatly improved, manual intervention is reduced, the labor intensity and the human error risk are reduced, an integrated and automatic solution is provided for heating treatment of the caterpillar band iron teeth, and the production efficiency and the product quality stability are effectively improved.

The present application relates to electric heating technology field, disclose a kind of using infrared super high efficiency electric heating, including shell, hot air duct, infrared conversion mechanism and infrared heating mechanism;Infrared conversion mechanism is arranged at the periphery of infrared heating mechanism, forms heat exchange cavity;The present application not only utilizes the heat generated by infrared heating mechanism itself to heat air, but also through the infrared conversion mechanism of outside, intercepts and absorbs the infrared generated by infrared heating mechanism, generates more heat, greatly improves the heating effect, and the thermal efficiency is higher;The bottom of the device is provided with universal wheel, which can be easily moved to the use area, is very flexible and convenient, and is more convenient to use;There is a heat insulation cavity between the side pipe wall of hot air duct and the shell wall, and a limiting guide plate and a point-break type heat insulation hole are arranged between the tuyere pipe wall and the shell, which maximally reduces the heat transfer to the shell, causes the shell to overheat, and generates a safety hazard for the user, and the safety is higher.

The utility model provides an air compressor waste heat intelligent heating regulation and control device, and relates to the technical field of heating regulation and control devices, the air compressor waste heat intelligent heating regulation and control device comprises a base and a machine body, and a snakelike heat conduction pipe is fixedly installed in the machine body. The second motor is started, the output end of the second motor drives the lead screw to rotate, due to the fact that the lead screw is in threaded connection with the sliding block, and the sliding block is in sliding connection with the guide column, under the limiting effect of the guide column, the sliding block can do linear motion in the direction of the lead screw, the sliding block drives the toothed bar to move synchronously through the connecting rod, and due to the fact that the gear is meshed with the toothed bar, the toothed bar can move synchronously. The toothed bar moves to drive the gear to rotate, then the rotating shaft and the air guide plate fixed to the rotating shaft are driven to change the angle, by adjusting the angle of the air guide plate, the air circulation amount and the heat dissipation area can be controlled, the heat dissipation degree can be precisely adjusted and controlled, heat output by the device is made to be matched with actual requirements, and compared with a traditional waste heat heating device, the device has the advantages that the cost is reduced. And heat output is more intelligent and accurate, and the heating effect and the comfort degree are improved.

The temperature adjusting device comprises a plurality of cooling fins, the cooling fins are connected through heat conduction pipes, a heat preservation shell is installed on the outer sides of the cooling fins, a plurality of partition plates are installed in the heat preservation shell, the heat preservation shell is divided into a plurality of heat preservation spaces through the partition plates, and square openings are formed in the upper ends of the heat preservation spaces; a heat insulation shell is installed in the heat preservation space, an air outlet is formed in the upper end of the heat insulation shell, a heat insulation curtain is arranged on the outer side of the air outlet, multiple sets of ventilation openings are formed in the heat insulation curtain, and a driving frame is installed in the heat preservation space. The chicken coop has the advantages that the cooling fins are wrapped by the heat preservation shell and the heat insulation shell, hot air can be prevented from being directly leaked, the heat insulation curtain is placed at the air outlet, hot air in the heat preservation space can be discharged through the ventilation opening, the chicken coop can be heated, and the chicken coop can be heated by changing the size of the ventilation opening of the heat insulation curtain above the cooling fins at different positions. The whole temperature in the henhouse can be balanced, and the heating effect is better.

The application relates to the technical field of heat pump systems, and discloses a heat pump air conditioning system which comprises a water module and a processing module. The processing module is configured to perform the following steps: obtaining the proportion of the current opened heat radiation indoor terminal in the total number of heat radiation indoor terminals, and taking the proportion as the current heating demand load rate; configuring the heat pump air conditioning system to enter an overall coordination mode or a local abnormality processing mode based on the current heating demand load rate; in the overall coordination mode, allowing first-intensity water supply temperature compensation to be performed on the basis of the water module reference water supply temperature according to terminal temperature difference feedback; in the local abnormality processing mode, limiting the water supply temperature compensation so that the water supply temperature compensation does not exceed a preset second intensity, and the second intensity is smaller than the first intensity; wherein the current heating demand load rate in the overall coordination mode is higher than the current heating demand load rate in the local abnormality processing mode. The application can realize hierarchical response and prevent global energy efficiency from being deteriorated due to local abnormality.

This application relates to the field of air conditioning technology and discloses a ducted air conditioner. It includes a housing, an air outlet on the side of the housing, and an air outlet frame outside the air outlet. It further includes: a first air guide rotatably disposed at the air outlet; and a second air guide disposed on the air outlet frame and used to open or completely close the air outlet. Under the drive of an external force, the first air guide rotates axially to guide air, and the second air guide first translates out of the air outlet frame and then rotates to open upwards or downwards to guide air. By providing a second air guide on the air outlet frame of the ducted air conditioner, the second air guide can first translate out of the air outlet and then rotate, allowing the rotation angle of the second air guide to be unconstrained by the air outlet frame, thus enabling large-angle air delivery and improving the cooling or heating effect of the ducted air conditioner.

The application provides an enthalpy-increasing air conditioning system, an electric vehicle and a control method of the enthalpy-increasing air conditioning system. The enthalpy-increasing air conditioning system can realize enthalpy increase of a compressor through an economizer, so that the energy efficiency ratio of the compressor is effectively improved. Meanwhile, the third heat exchanger is arranged, heat exchange between the carrier refrigerant and the refrigerant is realized through the third heat exchanger, the refrigerant absorbs the heat of the carrier refrigerant and returns to the compressor, the temperature of the refrigerant at the inlet of the compressor is improved, the compression amount of the compressor is reduced, the energy efficiency ratio of the compressor is further improved, the energy consumption is reduced, and the heating effect of the compressor is improved. Moreover, the third heat exchanger can also dissipate heat for the electric drive system, so that the heat pump system and the carrier refrigerant system are organically combined, the overall volume and weight of the enthalpy-increasing air conditioning system are reduced, and the endurance of the electric vehicle is prolonged.

This utility model discloses a direct cooling and heating power battery thermal management system and a new energy commercial vehicle, comprising: a compressor assembly connected to a condenser assembly, which is then connected in parallel to a power battery assembly and an evaporator assembly to form a circuit; the front-end circuit of the compressor assembly is also connected in parallel to a fuel PTC heating assembly circuit via a refrigerant three-way valve, and the condenser assembly is also connected in parallel to a second shut-off valve circuit. Heating is achieved by connecting the fuel PTC heating assembly circuit and the second shut-off valve circuit, and cooling is achieved by disconnecting the fuel PTC heating assembly circuit and connecting the condenser assembly. This utility model achieves rapid and precise temperature regulation of the power battery through direct cooling and heating technology, while simultaneously utilizing the fuel PTC heating assembly circuit to replenish gas and increase enthalpy on the low-pressure side, thereby improving the system's heating performance in low-temperature environments and enhancing the overall performance and reliability of the new energy commercial vehicle.

The embodiment of the invention provides an air conditioning system and a control method thereof, relates to the technical field of air conditioners, and aims to improve the sterilization effect of the air conditioning system. The air conditioning system includes: an outdoor heat exchanger; an indoor heat exchanger; one end of the air pipe communicates with the indoor heat exchanger, and the other end communicates with the outdoor heat exchanger, so that the indoor heat exchanger is connected with the outdoor heat exchanger through the air pipe; the air pipe temperature sensor is used for detecting the temperature of the air pipe; the indoor fan is used for blowing air to the indoor heat exchanger, so that the indoor heat exchanger exchanges heat with the blown air; the controller is configured to control the air conditioning system to operate in a refrigeration mode in response to the high-temperature sterilization instruction, so that the indoor heat exchanger is frozen; when the air conditioning system operates in the refrigeration mode, the indoor fan is controlled to operate based on the air pipe temperature detected by the air pipe temperature sensor; and controlling the air-conditioning system to enter a high-temperature sterilization and deicing stage in response to the condition that the air-conditioning system reaches the icing exit condition.

The utility model provides a kind of ceramic heating device for heating table, comprising: outer cover, its lateral wall is evenly provided with several through holes one;Heating disc, its quantity is at least provided with two, one of which is fixed on the inner cavity upper position of outer cover, is configured as cooking utensil can be placed in the heating disc, heating food;The rest heating disc is set in the middle position of outer cover inner cavity, is configured as emitting heat and makes heat outward diffusion through through hole one;The utility model is by setting multiple heating disc and multiple conical cover structure in heating table interior, form multilayer heat conduction and diffusion structure, so that heating device not only has traditional heating function, cooking utensil can also be placed on the upper heating disc, to meet the multiple scene use demand of barbecue, hot pot etc., significantly improve the diversity of use function;The conical cover structure set can quickly reflect heat to the outside of outer cover, is beneficial to improve the effect of heat diffusion, and the heating effect is better.

The application discloses a boiler waste heat recycling heat exchange structure, which comprises a water pipe and a heat exchange plate fixedly connected with the water pipe, the heat exchange plate is provided with a groove in contact with the water pipe, and the groove is provided with welding teeth facilitating welding of the heat exchange plate and the water pipe. The boiler waste heat recycling heat exchange structure is reasonable in design, improves the welding effect of the heat exchange plate and the water pipe, improves the contact area of the heat exchange plate and the water pipe, and avoids the existence of virtual welding between the heat exchange plate and the water pipe.

The utility model discloses a warm air blower with a shunting structure, which comprises a casing, an air outlet is arranged at the front part of the casing, an air inlet is arranged at the rear part of the casing, a fan, a connecting frame and an electric heater are arranged in the casing, the position of the electric heater corresponds to the air outlet, the position of the fan corresponds to the air inlet, and the electric heater is rectangular. The connecting frame is arranged between the electric heater and the fan, air guide pieces used for guiding airflow to the corners of the electric heater are arranged in the connecting frame, the fan is provided with fan blades, the rotating axes of the air guide pieces and the fan blades form acute angles, and the air guide pieces are distributed at the four corners of the connecting frame. The warm air blower with the flow dividing structure is favorable for improving the heating effect.

The utility model provides a kind of wall-mounted gas heater with simple and safe use, efficient heating, energy saving, which can solve the problem of traditional gas heater in use needs certain learning cost, lack of perfect safety system, low energy utilization rate and other problems.A kind of wall-mounted gas heater is provided, which comprises a shell, the shell is divided into a combustion zone and a control zone by a partition, and an exhaust core, a heat exchanger air chamber, a combustion core and a fan are sequentially arranged from top to bottom in the combustion zone, a control system connected to the combustion core and the fan through a control circuit is arranged in the control zone, the control system is connected to the external gas at the bottom, a control display electrically connected to the control system is arranged at a position corresponding to the control zone on the shell, and an air inlet and exhaust pipeline is further included, which is connected to the exhaust core and the combustion zone respectively, the bottom of the shell is designed as a hollow, the air inlet of the fan is located at the hollow position, and the air outlet is aligned with the combustion core.The utility model is suitable for the field of gas heating technology.

The utility model provides an air conditioner shell with a top cleaning structure, which relates to the technical field of air treatment equipment, and comprises an air conditioner shell, an air deflector arranged on the lower side of the air conditioner shell, a mounting groove formed in the top of the air conditioner shell, a filter component mounted in the mounting groove, a protective net mounted on the top of the shell frame, and a top cleaning structure mounted on the protective net, in order to solve the problems that when air of an air conditioner is filtered, too much dust is accumulated on a filter plate, so that blockage is caused, and the operation effect and energy consumption of the air conditioner are affected, the brush is arranged to conduct blockage prevention on a filter screen of the top dust cleaning structure; dust can be effectively prevented from entering the air conditioner through gaps of the air conditioner, smooth air exchange and circulation during operation of the air conditioner are kept, and the refrigerating or heating effect of the air conditioner is effectively kept.

The utility model discloses a device for protecting whitmania pigra from overwintering, which comprises a culture pond, and the upper end of the culture pond is fixedly connected with a U-shaped frame; the heating mechanism comprises a moving plate, the lower end of the moving plate is rotationally connected with a rotating pipe, the lower end of the rotating pipe is sealed, exhaust holes are formed in the two sides of the lower end of the rotating pipe, the right side of the moving plate is fixedly connected with a heating air blowing pump, and the upper end of the rotating pipe penetrates through the moving plate; the exhaust end of the heating air blowing pump is communicated with a rotary joint; the moving mechanism is used for moving the rotating pipe; and the rotating mechanism is used for rotating the rotating pipe. When the device is used, the heating air blowing pump is used in cooperation with the moving mechanism, and heated air is evenly injected into the water body, so that the temperature of the water body is effectively and evenly increased, and the situation that the survival or feeding desire of whitmania pigra is affected due to the too low temperature of the water body in winter is avoided.

This invention discloses a pump-driven, high-efficiency, low-pressure defrosting air source heat pump system and its control method. The system includes a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a throttling element, an energy storage module, a gas-liquid separator, a defrost bypass branch, and a pump return branch. The control method includes: executing a heating and heat storage mode to store heat in the energy storage module; responding to defrosting conditions, executing a heating and defrosting mode to extract heat from the energy storage module; while continuously supplying heat to the first heat exchanger, using low-pressure refrigerant to melt the frost layer on the wall of the third heat exchanger; opening the defrost bypass branch to allow some refrigerant to bypass from the inlet to the outlet of the third heat exchanger to reduce the internal pressure drop; and simultaneously starting the refrigerant pump to pump the liquid refrigerant at the bottom of the gas-liquid separator to the inlet of the second heat exchanger to enhance heat absorption. This invention eliminates the need for system shutdown during defrosting, achieving efficient defrosting and stable heating through the energy storage module, the defrost bypass branch, and the pump return branch, significantly improving system energy efficiency and comfort.

The utility model discloses a heat utilization device of a stretch yarn machine. The heat utilization device comprises the stretch yarn machine, the heating box is installed on the outer side of the stretch yarn machine, the guide wheels are rotationally installed on the two sides of the upper end and the middle of the bottom end in the heating box, the partition plates are installed in the middle and on the two sides of the heating box, the filter box is installed on one side in the heating box, and the heating mechanism is installed on the other side in the heating box. An air pump is installed at the position, located at the bottom end of the heating mechanism, in the temperature rising box and connected with the filtering mechanism through a guide pipe, and a controller is installed at the upper end of the temperature rising box. Air circularly flows in the temperature rising box, the air circulation length can be reduced, heat loss is avoided, the heat utilization rate is improved, meanwhile, the contact area between silk threads and the temperature can be increased through the partition plates, the temperature rising effect on the silk threads is improved, and the working efficiency of the heating mechanism and the air pump can be controlled through the controller.