51results about How to "Guaranteed continuous heating" patented technology

The invention discloses a multi-connected unit phase change energy storage hot liquid defrosting system and relates to the hot liquid defrosting system. The hot liquid defrosting system is designed against the problems that the defrosting system needs to absorb heat from a heating room during defrosting, thereby leading the room temperature to drop intensely; a four-way reversing valve carries out frequent reversion during the defrosting process, thereby affecting the service life; the defrosting speed is slow and the energy consumption is great. The four-way reversing valve is respectively communicated with a first main path and a third main path, the third main path is communicated with a gas-liquid separator, the gas-liquid separator is communicated with a compressor, the first main path is respectively communicated with a first branch pipeline and a second branch pipeline, an outdoor electronic expansion valve is connected with a second electromagnetic valve in parallel, a fourth electromagnetic valve and a subcooler are connected with a third electromagnetic valve and a phase change heat storage device in parallel, the subcooler is communicated with a fourth main path, the fourth main path is communicated with the gas-liquid separator, the first branch pipeline and the second branch pipeline are communicated with a second main path, a liquid storage device is arranged on the second main path, and the second main path is communicated with an indoor unit. The hot liquid defrosting system is used for multi-connected unit defrosting.

The invention relates to a green ecological zero energy integrated building, a first floor of the building is provided with a living room, a bedroom, a dinning room, a kitchen, a toilet; a second floor of the building is provided with a bedroom and a toilet; a heat supply system is arranged inside the room, the building is connected with a heliogreenhouse on the ground and is connected with a methane tank under the ground. A solar thermal collector arranged at the top of the building is communicated with a temperature-holder box arranged inside the rooms of the building by a circulating pipe of the first line, the temperature-holder box is communicated with a water heating pipe of a gas-fuel heater by the circulating pipe, a gas line of the gas-fuel heater is communicated with the methane tank by a methane pipe. A hot water outlet of the temperature-holder box is respectively communicated with a PE-RT pipe and a heating pipe of the methane tank which is buried near the methane tank. A water tank temperature sensor, a room temperature sensor and a collector temperature sensor are connected with an intelligent controller. With the solar energy, bioenergy and wind energy complementing each other, the building has the characteristics of comfort, environmental protection, energy saving and zero-pollution.

The invention provides a cold start apparatus for a hydrogen fuel cell system. The hydrogen fuel cell system includes a fuel cell pile, a secondary circulation circuit and a water supply path; the secondary circulation circuit includes a liquid coolant circulation pipeline and a secondary circulation heating device arranged on the liquid coolant circulation pipeline and used for heating a liquid coolant in the liquid coolant circulation pipeline; and the water supply path includes an expansion water tank for supplementing the liquid coolant to the liquid coolant circulation pipeline and a water supply path heating device arranged on the pipeline between the expansion water tank and the liquid coolant circulation pipeline and used for heating the supplied liquid coolant. In the cold start apparatus, the water supply path heating device heats the supplemented liquid coolant supplemented to the liquid coolant circulation pipeline, and the secondary circulation heating device heats the liquid coolant in the liquid coolant circulation pipeline. Two heating devices work together in the invention, so the heating process of the secondary circulation circuit the fuel cell pile is accelerated, and the cold start time is shortened.

The invention discloses an air conditioner capable of heating continuously and a control method thereof. The air conditioner comprises a compressor, an outdoor heat exchanger and a defrosting branch circuit, one end of the defrosting branch circuit is connected to the exhaust side of the compressor, the other end is connected to the outdoor heat exchanger, and the defrosting branch circuit is usedfor bypassing a part of gas refrigerants discharged from the compressor to the outdoor heat exchanger for defrosting under a defrosting mode. The defrosting branch circuit is utilized to bypass a part of the high-temperature gas refrigerants discharged from the compressor to the outdoor heat exchanger for defrosting, the other part of the high-temperature gas refrigerants discharged from the compressor enters an indoor heat exchanger for heating, therefore it is ensured that an indoor unit continues heating in the defrosting process, it is ensured that the indoor environment temperature is stable, and uncomfortable experiences are avoided from being brought to users.

The application relates to an air conditioner heating control method, a controller and an air conditioner, and belongs to the air conditioner heating technology field. The air conditioner heating control method includes: acquiring weather parameters, wherein the weather parameters comprise temperature and humidity; confirming if normal heating running is needed or defrosting heating running is needed according to the weather parameters; and performing heating running control according to a confirmed result, wherein under the normal heating running, all coolant output by a compressor flows towards an indoor heat exchanger, and under the defrosting heating running, a part of the coolant flows into the indoor heat exchanger, the other part of the coolant flows towards a part, confirmed to perform defrosting, of heat exchange units in an outdoor heat exchanger, and the other heat exchange units in the outdoor heat exchanger are in a normal work state. The air conditioner heating control method can achieve adaptive continuous heating control by using the weather parameters, facilitates grasp of switching time of the normal heating running and the defrosting heating running well, and then facilitates improvement of heating effect and improvement of comfort experience of users.

The invention discloses a heating electronic expansion valve control method. The opening degree of an expansion valve is controlled by detecting exhaust air superheat degree TdSH and suction air superheat degree SH_HEATING; when the exhaust air superheat degree is increased gradually along with the time and the temperature, the electronic expansion valve is opened in advance to control the continuous raising trend of the temperature of exhaust air so as to control the phenomenon that the exhaust air superheat degree is increased gradually; and when the exhaust air superheat degree presents a decreasing trend along with the time, the opening degree of the electronic expansion valve is reduced in advance through a calculation formula so as to keep the exhaust air superheat degree running ina safety range. According to the heating electronic expansion valve control method, the suction air superheat degree and the exhaust air superheat degree are simultaneously controlled through one part, in such way, the continuous heat supply of an indoor unit is ensured, and the reliability of an outdoor compressor can also be ensured, so that normal operation of the overall system is ensured, andthe service life is prolonged.

The invention discloses an air conditioner and a control method of the air conditioner. The air conditioner comprises a compressor, a first reversing component, a second reversing component, an indoor heat exchanger, a third reversing component, a first outdoor heat exchanger, a second outdoor heat exchanger, a first refrigerant flowing path and a second refrigerant flowing path, wherein the compressor has an exhaust port and an air return port; the first reversing component has a first valve port to a fourth valve port; the first valve port is communicated with one of the second valve port and the third valve port; the fourth valve port is communicated with the other one of the second valve port and the third valve port; the first valve port is connected with the exhaust port; the fourth valve port is connected with the air return port; the second reversing component has a first interface to a third interface; the first interface is communicated with one of the second interface and the third interface; the first interface is connected with the second valve port; and a first end of the indoor heat exchanger is connected with the third valve port. The air conditioner can improve the user comfort in the use of a heating function of the air conditioner to a certain extent.

The invention provides an air conditioner system. The air conditioner system comprises a compressor, an outdoor heat exchanger, a first throttling device, a heat storage device, indoor units, a control device, a first connection pipeline, a second connection pipeline and a third connection pipeline, wherein the first connection pipeline is connected between the first throttling device and the heat storage device, and the second connection pipeline is connected between the heat storage device and the control device. The air conditioner system comprises a first operation mode and a second operation mode under switching of the control device; under the first operation mode, the control device controls an exhaust outlet of the compressor to communicate with the second connection pipeline and the third connection pipeline; and under the second operation mode, the control device controls the exhaust outlet of the compressor to communicate with the first connection pipeline and the third connection pipeline. The invention further provides a control method of the air conditioner system. According to the air conditioner system and the control method thereof, continuous heating in the defrosting process can be ensured, moreover the air conditioner system and the control method thereof are suitable for continuous heating of a multiple-on-line air conditioner unit, and the universality of the air conditioner system is improved.

The invention discloses a heat source tower heat pump using a passive external auxiliary heating defrosting prevention device, and aims to provide the heat source tower heat pump using the passive external auxiliary heating defrosting prevention device. The heat source tower heat pump comprises a heat source tower and a heat pump set; the heat source tower and the heat pump set are communicated through a secondary refrigerant transmission pipe and a secondary refrigerant return pipe; A: a heat exchanger is arranged in the heat source tower; a sprayer is arranged at the upper part of the heat exchanger; an exhaust fan is arranged at the upper part of the sprayer; the lower part of the heat source tower is communicated with a solution pool through a liquid receiving disc; and the solution pool is communicated with the sprayer through a spraying liquid circulating pump; and B: the heat pump set includes a compressor, an evaporator, an expansion valve and a condenser; the evaporator and the condenser are respectively communicated with a heating device and a secondary refrigerant circulating pump through pipes; the evaporator is respectively communicated with the compressor and the condenser; and the condenser is directly communicated with the compressor. The heat source tower heat pump is mainly applied to passive external auxiliary heating defrosting prevention.

The invention discloses an airtight oxygen-rich negative pressure efficient smelting furnace directional smelting clean production process. The process includes: adopting an efficient smelting furnace; feeding low sulfur complex smelting slag and fusion agent ingredients into the furnace through a feed inlet; using coal gas or natural gas and coking coal as the heat supply fuel of reducing smelting, injecting oxygen at the efficient smelting furnace bottom side into the furnace; and carrying out reducing smelting by the efficient smelting furnace so as to ultimately realize directional separation and enrichment of lead, copper, zinc, tin, antimony, bismuth, gold, silver, indium and other valuable metals in soot, slag, iron matte, crude metals and other products. The process provided by the invention realizes the real sense of efficient clean production, the production process is short, and project investment is saved.

The invention discloses a solar energy geothermal heating system for agricultural greenhouse planting. The solar energy geothermal heating system for the agricultural greenhouse planting comprises a pre-buried electric heated tube, a greenhouse body and a solar energy photovoltaic plate. A nutrition soil layer is paved on the bottom of the greenhouse body. The pre-buried electric heated tube is paved on the bottom of the nutrition soil layer. A plurality of temperature sensors is pre-buried in the nutrition soil layer above the pre-buried electric heated tube. The temperature sensors are connected with a controller. The pre-buried electric heated tube is electrically connected with the controller. The controller is connected with an accumulator. The accumulator is connected with the solar energy photovoltaic plate. The controller is connected to an electric supply power grid. The nutrition soil layer in the greenhouse body is heated by the pre-buried electric heated tube, the continuous heat supply to the soil is guaranteed, the temperature stabilization is ensured, and the solar energy geothermal heating system is good for planting crops in the greenhouse body. Even in cold winter, the situation of freezing the root of the crops cannot be generated. Compared with the traditional mode of heating the air to improve the temperature in the greenhouse body, the mode of the solar energy geothermal heating system for heating the nutrition soil layer is capable of guaranteeing the survival and growth of the crops better.

The invention belongs to the technical field of air conditioners, and provides an air conditioning system and an air conditioner. The air conditioning system and the air conditioner are used for solving the problem that the heating effect of an existing air conditioner cannot be improved suitably. The air conditioning system comprises an indoor unit, an outdoor unit and a compressor. A loop-lockedcirculation main path is formed by the indoor unit, the outdoor unit and the compressor. The air conditioning system further comprises a solar heating device connected with the outdoor unit in parallel. The solar heating device can assist the outdoor unit with heating when the air conditioner carries out heating, and has the function of being used instead of the outdoor unit when the air conditioner defrosts. Because the solar heating device can assist the outdoor unit with heating when the air conditioner carries out heating, and in other words, the solar heating device can carry out heatingcompensation on the outdoor unit when the air conditioner carries out heating, it is guaranteed that the outdoor unit carries out continuous heating when the air conditioner defrosts, it is avoided that indoor unit heating is interrupted because the outdoor unit of the air conditioner defrosts, more energy of the air conditioner is saved, and the user experience is improved.

The invention discloses an electromagnetic induction selective laser melting powder bed on-line heating system and an electromagnetic induction selective laser melting powder bed on-line heating method. The system comprises a powder bed in a selective laser melting forming chamber; a metal electromagnetic induction coil is arranged above the powder bed, and is connected with an intermediate-frequency or high-frequency heating power supply; the intermediate-frequency or high-frequency heating power supply is connected with a central control unit through a control circuit; the metal electromagnetic induction coil is fixed to a nonmetal high-temperature resistant bracket; the nonmetal high-temperature resistant bracket is connected with a three-dimensional moving bracket; the three-dimensional moving bracket is fixed in the selective laser melting forming chamber; an infrared thermometer is arranged above the metal electromagnetic induction coil; the powder bed is provided with a moving powder spraying device matched with the powder bed to move; and the three-dimensional moving bracket, the infrared thermometer and the moving powder spraying device are connected with the central control unit through the control circuit. With the adoption of the method, on-line heating on the surface of the powder bed can be realized, so a temperature gradient of a forming area is reduced, when the heating temperature is high enough, and on-line annealing on a manufactured part can be realized in an SLM forming process when a heating temperature is high enough.

The invention discloses a new type of garbage incineration device, which relates to the field of environmental protection and sanitation treatment, and comprises an incineration chamber arranged on the foundation. The interior of the chamber is equipped with an ignition device, and the incineration chamber is equipped with a control ignition device and a control panel for detecting the temperature inside the incineration chamber. The top of the tank is provided with a recovery oil injection pipeline connecting the pressure pump and the oil storage tank. The recovery oil injection pipeline is evenly distributed with a number of branch pipes extending to the interior of the incineration chamber. The control valve of the electric connection of the control panel; the recovered oil that is easy to burn is supplied to the interior of the incineration chamber through the recovered oil injection pipe and the branch pipe above it, so that the internal temperature of the incinerator is always higher than 850 ° C, thus solving the incompatibility of the existing garbage incinerator The problem of the actual garbage situation in our country.

The invention discloses a device for alternately switching a part of an evaporator into a condenser to defrost in due time. The device for alternately switching the part of the evaporator into the condenser to defrost in due time comprises a compressor, a gas-liquid segregator, a four-way reversing valve, a condenser, a liquid storing device, a filter, an expansion valve, a liquid separator, original evaporator bodies, standby evaporator bodies, defrosting sensors, three-way reversing valves and electromagnetic valves. The original evaporator bodies are in parallel connection with the standby evaporator bodies. The defrosting sensors are arranged on the original evaporator bodies and the standby evaporator bodies, the upper ends of the standby evaporator bodies are in series connection with the electromagnetic valves, and the two ends of each evaporator body are connected with the corresponding three-way reversing valves correspondingly, the upper ends of all the evaporator bodies are connected with the compressor, the gas-liquid segregator, the four-way reversing valve and the upper end of the condenser. The lower ends of all the evaporator bodies are connected with the liquid storing device, the filter, the expansion valve, liquid separator and the lower end of the condenser. According to the device for alternately switching the part of the evaporator into the condenser defrosting in due time, defrosting efficiency is high, it is not needed to absorb heat in a heat preservation water storing tank and air for defrosting, and energy consumption is low.

The invention provides an air conditioning system unit and an air conditioning system. The air conditioning system unit comprises a first sub-system and a second sub-system. The first sub-system comprises a first compressor, a first outdoor heat exchanger and a first indoor heat exchanger which are mutually connected to form the first compressing circulation, and a first economizer for supplying air and increasing enthalpy to the first compressor. The second sub-system comprises a second compressor, a second outdoor heat exchanger and a second indoor heat exchanger which are mutually connected to form the second compressing circulation, and a second economizer for supplying air and increasing enthalpy to the second compressor. The air conditioning system unit further comprises a first defrosting pipeline capable of optionally accessing the side road of the second economizer to the first compressing circulation so that a refrigerant of the first compressing circulation does not pass through the first indoor heat exchanger; and a second defrosting pipeline capable of optionally accessing the side road of the first economizer to the second compressing circulation so that a refrigerant of the second compressing circulation does not pass through the second indoor heat exchanger.

The invention discloses a multi-connected unit phase change energy storage hot liquid defrosting system and relates to the hot liquid defrosting system. The hot liquid defrosting system is designed against the problems that the defrosting system needs to absorb heat from a heating room during defrosting, thereby leading the room temperature to drop intensely; a four-way reversing valve carries out frequent reversion during the defrosting process, thereby affecting the service life; the defrosting speed is slow and the energy consumption is great. The four-way reversing valve is respectively communicated with a first main path and a third main path, the third main path is communicated with a gas-liquid separator, the gas-liquid separator is communicated with a compressor, the first main path is respectively communicated with a first branch pipeline and a second branch pipeline, an outdoor electronic expansion valve is connected with a second electromagnetic valve in parallel, a fourth electromagnetic valve and a subcooler are connected with a third electromagnetic valve and a phase change heat storage device in parallel, the subcooler is communicated with a fourth main path, the fourth main path is communicated with the gas-liquid separator, the first branch pipeline and the second branch pipeline are communicated with a second main path, a liquid storage device is arranged on the second main path, and the second main path is communicated with an indoor unit. The hot liquid defrosting system is used for multi-connected unit defrosting.

The invention discloses a heat-storage-type electric heating optimization control method for power failure and heating retention. The method comprises the steps that a part of heat in a heat storage water tank is used for meeting the heat load demand during the power failure and does not participate in daily heat supply, and a minimum heating load calculation model during the power failure is acquired; based on the minimum heating load calculation model, a heat-storage-type electric heating optimization dispatching model is established, wherein the model comprises an objective function and a constraint condition; when the power failure occurs, the calculated minimum heating load during the power failure continues to meet the house heat load demand; and from the moment of the power failure,the house heat load demand of a time period set by a user is met, and the indoor comfort level is maintained.

The invention relates to a novel air water generator with high water generating efficiency. The novel air water generator comprises a heating assembly. The heating assembly comprises an air heating box, a partition plate vertically arranged in the air heating box, and a driving assembly in transmission connection with the partition plate. The partition plate divides the air heating box into a region A and a region B. The region A and the region B are communicated with a condensing assembly through two air outlet pipes on the two sides of the air heating box respectively. In the novel air water generator, by controlling air in the region A and the region B through the partition plate and heating air in the region A and the region B through the combination of an electric heater, continuous heating of air is ensured; furthermore, a driving shaft drives a transmission frame to move through a driving gear, the partition plate is moved, air heating time can be adjusted only by controlling the rotation speed of the driving shaft, it can be guaranteed that air is sufficiently heated, and the water generating efficiency of the air water generator is ensured.

The invention discloses equipment for flange forging production. The equipment comprises a base, a furnace body main body and a regenerative furnace, a lower furnace body is arranged above the base, alower furnace sealing door is arranged below the outer surface of the lower furnace body, a first connecting pipeline is arranged on the outer side of the lower furnace body, the left side and the right side of the furnace body main body are provided with heat return pipes, the furnace body main body is located on the outer sides of the lower furnace body and the upper furnace body, an outer heating layer is arranged on the outer side of the regenerative furnace, and the regenerative furnace is located on the side, close to the outside, of a stop valve. According to the equipment for the flange forging production, a steel ingot, square steel or round steel are taken as raw materials, after the corresponding weight and size are cut through a sawing machine, the raw materials enter the furnace to be heated to be made into a rough blank, the rough blank returns to the furnace again to be heated and then is discharged out of the furnace for ring milling, a mold with the shape matched withthe shape of a product is utilized to enable the rough blank to directly form the shape close to the shape of the finished product through ring milling, so that materials are saved, the weight of thematerials is reduced, the finish machining time is saved, and the machining time is greatly saved by carrying out machining according to the shape.

The invention relates to a frost preventing and removing system and a frost preventing and removing method of a heat pipe type air conditioner. A compressor waste heat recovery channel is separated from an outdoor machine through a partition plate; a compressor and an exhaust pipeline are positioned in the compressor waste heat recovery channel; the compressor waste heat recovery channel is internally provided with a waste heat recovery fan and a horizontal heat pipe; and the horizontal heat pipe is parallel to the heat transfer pipe of an outdoor heat exchanger and closely coupled with the heat transfer pipe of the outdoor heat exchanger through a heat exchange fin. According to the frost preventing and removing method which is disclosed by the invention, heat pipe technology compressor waste heat recovery based frost removal and hot gas bypass based frost removal are effectively combined. The frost preventing and removing system disclosed by the invention can realize a winter heating frost preventing mode, a winter heating periodical double-effect frost removing mode and a winter heating optimizing operation mode when operated for winter heating, has dual functions, namely frost prevention and removal, and the outstanding advantages of prolonging the frosting time, shortening the frost removing time, realizing the continuous heat supply of an indoor machine, and the like, and can be used for reducing the condensing temperature by realizing the double-effect cooling of the outdoor heat exchanger by adopting a heat pipe technology when operating for summer cooling, thereby reducing the power consumption of the compressor and enhancing the work property of a machine set.

The invention discloses an air conditioning system which includes a first branch pipe and a refrigerant circulation main loop formed by connecting a compressor, a four-way reversing valve, an indoor heat exchange device, an outdoor heat exchange device and a throttling component through a main pipe; one end of the first branch pipe is connected to the exhaust end of the compressor, one end of thefirst branch pipe is connected to the part, between the outdoor heat exchange device and the throttling component, of the main pipe, and a first control valve is installed on the first branch pipe. The air conditioning system provided by the embodiment optimizes the system structure, does not need to switch the four-way valve during defrosting, meanwhile, can ensure that an indoor unit continues to blow out hot air to meet the heating demand and improves the user comfort.

The invention discloses a household phase-change heating device, which is characterized in that a plurality of wave-absorbing heat storage plates are arranged in a shell at intervals, composite phase-change materials are arranged in the wave-absorbing heat storage plates, waveguide tubes connected with an automatic microwave generator are arranged on the two sides of each wave-absorbing heat storage plate respectively, and constant-temperature heat release is achieved through microwave heating. The device is higher in energy utilization rate, higher in energy saving performance, simple in structure, safer and longer in service life.

The invention provides a self-cleaning method of a food processor and the food processor. The food processor comprises a machine body, a stirring cup and a motor arranged on the machine body, the stirring cup comprises a cup body, a cup cover and a crushing knife driven by a motor, the self-cleaning method comprises the following steps: a stirring, washing and infiltrating stage: injecting cleaning water into a stirring cup to peel off residues adhered to the inner wall of the stirring cup when the temperature of the inner wall of the stirring cup is not lower than 85 DEG C after slurry discharge is completed, radiating heat to the cleaning water by the residual heat of the stirring cup to increase the temperature of the cleaning water by a first temperature, and driving the cleaning waterto wash and infiltrate the stirring cup, and a high-temperature cleaning stage: heating the cleaning water to enable the cleaning water to be not lower than a first preset temperature so as to cleanresidues. The highest temperature of cleaning water in the high-temperature cleaning stage is higher than that of cleaning water in the stirring-washing infiltration stage. According to the method, residues can be easily peeled off from the inner wall of the cup body or the inner wall of the cup cover, and therefore the good cleaning effect is achieved.

The invention discloses a kitchen range burner. The kitchen range burner comprises a burner cap and further comprises an energy gathering inner ring. The energy gathering inner ring encircles the burner cap. The energy gathering inner ring extends upwards to make complete contact with the bottom of a pot. The outer circumferential surface of the energy gathering inner ring is provided with a plurality of smoke discharge ports. The smoke discharge ports are arranged far away from the energy gathering inner ring. The top of the energy gathering inner ring is attached to the bottom surface of thepot, and the position, far away from the top, of the energy gathering inner ring is provided with the smoke discharge ports, so that smoke generated in the energy gathering inner ring during combustion is gathered in the space defined by the bottom surface of the pot and the energy gathering inner ring to maintain heat exchange of the bottom surface of the pot. In addition, the smoke with the relatively low temperature sinks and can be discharged from the smoke discharge ports at the bottom of the pot, it is ensured that the bottom of the pot is continuously heated, and the heat efficiency ofthe kitchen range burner is improved.

The invention relates to the technical field of solid electric heat storage, and provides a complementary solid electric heat storage unit. The complementary solid electric heat storage unit aims to solve the problems that a heat storage body is wasted due to the fact that the temperature difference between a cold end and a hot end of the heat storage body is large and heat storage of the heat storage body is unsaturated due to the fact that the heat storage body inside a traditional solid electric heat storage boiler is not uniform in heat storage and the heat storage body enters and exits while being heated, and the specified requirement of one for use and one for backup is not met in a heating system. The complementary solid electric heat storage unit comprises an outer shell and a solid electric heat storage boiler arranged in an inner cavity of the outer shell, wherein the outer side of the solid electric heat storage boiler is coated with a heat preservation layer, the air inletend of the solid electric heat storage boiler is connected with the air outlet end of a heat exchanger through an upper air duct, and the heat exchanger is arranged in the inner cavity of the outer shell; and the air inlet end of the heat exchanger is connected with the air outlet end of the solid electric heat storage boiler through a lower air duct, and a fan is arranged on the lower air duct. The complementary solid electric heat storage unit is particularly suitable for cooperative work of two heating systems required by heat supply for continuous heat supply, and has high social use valueand application prospect.

The invention discloses a multi-split air conditioner, a control method and a storage medium, the multi-split air conditioner comprises a compressor, an outdoor heat exchanger and a plurality of indoor heat exchangers arranged in parallel, a first inner refrigerant port of each indoor heat exchanger communicates with the compressor, and a second inner refrigerant port of each indoor heat exchanger is provided with a first control valve; when the multi-split air conditioner is used for heating and defrosting, at least one indoor heat exchanger is communicated with the first outer refrigerant port of the outdoor heat exchanger through the first control valve, and after refrigerant at the high-pressure side refrigerant port of the compressor is subjected to heat exchange through the indoor heat exchangers, throttling is not carried out, and the refrigerant directly enters the outdoor heat exchanger to be defrosted; and the defrosted refrigerant enters the indoor heat exchanger which does not start heating to evaporate after the first control valve corresponding to the indoor heat exchanger which does not start heating, and then returns to the compressor, so that a complete refrigeration cycle is formed, the outdoor heat exchanger is defrosted, and reversing of a four-way valve and switching of a refrigeration mode are not needed. Continuous indoor heating is guaranteed, and comfort is enhanced.

The invention discloses a hot fumigation patch for hemorrhoids. The patch comprises an upper-layer bag and a lower-layer bag, the upper end of the lower-layer bag is provided with the upper-layer bag,an isolation layer is arranged in the upper-layer bag and the lower-layer bag, the isolation layer and the upper-layer bag form an upper cavity, and the isolation layer and the lower-layer bag form alower cavity; a compressed medicine package is placed in the upper cavity, and the lower cavity is internally provided with a heating device; the heating device comprises a heating piece, a small battery pack and a hidden buckle switch, a copper foil line is printed on the heating piece, one end of the copper foil line is provided with a positive electrode welding spot, the other end of the copper foil line is provided with a negative electrode welding spot, and the positive electrode welding spot, the small battery pack, the hidden buckle switch and the negative electrode welding spot are sequentially connected through a wire. The hot fumigation patch for hemorrhoids has the advantages that traditional Chinese medicine components are continuously volatilized out through the continuous heating device at the bottom, that is to say, a traditional hip bath method is simulated, and the problem of physical insufficiency of a patient in a hip bath is solved; meanwhile, the hot fumigation patch can be attached to close-fitting clothing of the patient and is safe and convenient to use.

The invention provides an automatic putting method of a temperature and pressure reducer. The method comprises the following steps: S1, interlocking a trip signal of a back pressure turboset and an input signal of the temperature and pressure reducer; S2, placing the temperature and pressure reducer in a hot standby state; S3, comparing a current value of the back pressure turboset with a preset value; and S4, opening an isolating electric door at a steam inlet of the temperature and pressure reducer when the current value of the back pressure turboset is smaller than or equal to the preset value, and closing the isolating electric door at the steam inlet of the temperature and pressure reducer when the current value of the back pressure turboset is greater than the preset value. The method solves the technical problem that the temperature and pressure reducer cannot be input in time after strip of the temperature and pressure reducer in the prior art.