3689results about "Fluid heaters" patented technology

The invention provides a water working medium quasi-saturated compression high-temperature heat pump system based on an ejector, and belongs to the field of compression heat pumps. The problems that after an existing compression system flows through a throttling valve, the superheat degree of steam exhaust is large due to high-temperature lift compression, and the loss of available energy in the throttling process from condensate to a two-phase region is too large are solved. A multi-stage spraying atomization structure is adopted, a micro-nano liquid drop mist flow with the particle size controllable to be 50-200 nm and the liquid mass fraction adjustable to be 5%-10% is formed before compression, the airflow humidity regulation and control precision is remarkably improved, the quasi-saturation compression process is matched, and the thermal matching performance and the energy efficiency level of a system are effectively improved; a main flow inlet of the jet atomizer is changed into a compressor outlet from a condenser outlet, so that the response speed is increased, and meanwhile the jet atomizer is suitable for a complex variable-working-condition system; or single-stage compression is optimized into a two-stage compression form, so that higher heating temperature and more stable system operation are realized; or liquid from a lower-pressure position is injected, so that the injection capacity is improved.

The invention provides a solar energy-air energy composite heat pump system based on self-contained energy storage cascade application and a control method. The solar energy-air energy composite heat pump system comprises a heat pump host module, a solar module and a hydraulic module. Hot water generated by the solar heat collector is accumulated in the energy storage water tank and serves as an external heat source for active enhanced vapor injection to improve the performance of the heat pump. An active enhanced vapor injection device is designed for a heat pump host module, a refrigerant in an economizer absorbs heat of heat storage hot water, is jetted to a middle pressure cavity of a compressor and is converted into heating capacity, and the performance of the heat pump is greatly improved. When it is detected that the temperature in the heat storage water tank is reduced to a certain temperature, the flow direction of the heat storage hot water is switched through the switching assembly, the heat storage hot water is pumped to the heat pump fluorine-water heat exchanger for heat exchange, the heat pump performance is improved, and cascade application of the heat storage hot water is achieved. Refrigerant flows in the fin type heat exchanger and the fluorine-water heat exchanger are controlled by respective electronic expansion valves, and the opening degrees of the fin type heat exchanger and the fluorine-water heat exchanger are adjusted according to respective air suction superheat degrees, so that respective optimal heat exchange effects are realized.

A gas distribution rod body, a gas distribution pipe, a separation part and a first installation part are of an integrally-formed structure, when the winter and summer switching function is not needed, a first plugging piece can be installed in a first opening, and a third plugging piece can be installed in the corresponding first installation part; when a winter and summer switching function is needed, the gas channel can be divided into at least two gas dividing cavities only by installing the partition pieces to the corresponding partition parts, then the first plugging piece is installed in the first opening, and the control valve is installed on the first installation part according to needs. Therefore, the gas distribution rod can be simultaneously suitable for a gas water heater with a winter-summer conversion function and a conventional water heater without the winter-summer conversion function, and the applicability of the gas distribution rod is greatly improved. In addition, the utility model further discloses a gas water heater with the gas distribution rod.

The present application discloses a bar burner and a combustion device. The bar burner comprises: a bar burner body, a gas flow channel being formed inside the bar burner body, the bar burner body being provided with a top plate, and the top plate being provided with a plurality of combustion flame holes communicated with the gas flow channel; a metal mesh provided on one side of the top plate and arranged corresponding to the plurality of combustion flame holes; and a distribution and flame stabilizing piece provided in the gas flow channel, the distribution and flame stabilizing piece being provided with a plurality of distribution holes communicated with the plurality of combustion flame holes.

A system for generating steam for industrial heat. The system may include a plurality of heat pump cycles in thermal communication with each other and in thermal communication with a steam generation cycle. The plurality of heat pump cycles may include first and second heat pump cycles. The first heat pump circulates a first a working fluid and includes a first heat exchanger. The second heat pump cycle circulates a second working fluid and includes a second heat exchanger. The first heat exchanger transfers heat from the first to the second working fluid. The second heat exchanger transfers heat to a third working fluid in the steam generation cycle.

The present application relates to a system and method for supplying cascade energy using waste heat from a power plant during production. The waste heat from the power plant during production is connected to a heat source inlet of a lithium-bromide absorption chiller and to a waste water inlet of a waste water heat exchanger, and a heat source outlet of the lithium-bromide absorption chiller is connected to the waster water inlet of the waste water heat exchanger and to a water return port of the waste heat from the power plant during production; the lithium-bromide absorption chiller is connected to a chilled water intake line, a chilled water output line, a cooled water intake line and a cooled water discharge line, the cooled water discharge line is connected to a clean water side inlet of the waste water heat exchanger, and a clean water side outlet of the waste water heat exchanger is sequentially connected to a water purification device and a hot water tank; the clean water side inlet of the waste water heat exchanger is connected to a heating water return line, and the clean water side outlet of the waste water heat exchanger is connected to a heating water supply line; and a water outlet of the waste heat from the power plant during production is further connected to a heat source inlet of a solution regenerator, and a waste water outlet of the solution regenerator is connected to the water return port of the waste heat from the power plant during production. The system of the present application has high energy utilization efficiency, thus effectively expanding the range of waste-water waste heat utilization.

The invention relates to the field of uranium concentration, and discloses an energy-saving device and method for drying a first-batch centrifugal unit. According to the device, an inlet of a centrifugal machine is connected with an outlet of an evaporator through a pipeline provided with a fourth cooling valve and an eighth cooling valve and is connected to the secondary side of a cooling plate heat exchanger and the secondary side of a heating plate heat exchanger respectively; an outlet of the centrifugal machine is connected with an inlet of the evaporator through a sixth cold valve, a first cold valve and a second water pump. An inlet of the sixth cold valve is connected with the secondary side of the heat supply plate heat exchanger through a first water pump. The primary side of the cold supply plate heat exchanger is connected with a newly-built cooling tower loop, and the primary side of the heat supply plate heat exchanger, the condenser and the newly-built cooling tower form circulation. By optimizing system connection and a heat energy circulation path, the energy utilization efficiency and the equipment utilization rate are effectively improved, and the investment and operation cost is remarkably reduced.

The invention discloses a heat pump circulation system and a heat pump circulation control method. The heat pump circulating system comprises a compressor, a first condenser, a second condenser, an evaporator, an expansion valve, a first switch valve, a second switch valve and a third switch valve, and the compressor communicates with the first condenser through a first branch pipeline of a first pipeline and communicates with the second condenser through a second branch pipeline. The first condenser and the second condenser are connected in series through the second pipeline, the first switch valve is arranged on the first branch pipeline, the second switch valve is arranged on the second branch pipeline, and the third switch valve is arranged on the second pipeline. By controlling the on-off of the first switch valve, the second switch valve and the third switch valve, the heat pump circulation system has a primary heating mode in which only the second condenser participates in work and a secondary heating mode in which the first condenser and the second condenser work simultaneously, so that the heat exchange efficiency of the condensers is improved.

The invention belongs to the technical field of medical instruments, and particularly relates to a thoracic surgery anti-clogging nursing drainage device which comprises a drainage bottle fixedly connected with a drainage tube. The rolling mechanism is arranged outside the drainage tube and is used for assisting drainage and reducing blockage; the heating mechanism is arranged in the rolling mechanism and used for heating to reduce blockage, the heating mechanism comprises a plurality of heating rods, and the heating rods are arranged in the pressing roller in a penetrating mode; and the limiting mechanism is arranged on the shell and is used for fixing the position of the shell on the drainage tube. Liquid in the drainage tube can be pushed to move through extrusion of the pressing roller of the rolling mechanism, drainage is assisted, blockage is reduced, the liquid in the drainage tube can be heated through the heating rod of the heating mechanism, and the situation that the drainage tube is blocked due to the fact that blood clots are formed in the drainage liquid when the temperature is low is reduced.

The utility model relates to the field of industrial boiler equipment, in particular to an automatic chemical feeding device for a boiler, which comprises a chemical feeding tank and the boiler, the chemical feeding tank and the boiler are connected through a boiler water supply pipeline, the top of the chemical feeding tank is provided with a water feeding port and a chemical feeding port, the water feeding port is connected with an external water supply pipeline, and the chemical feeding port is connected with an external chemical supply pipeline. A first electromagnetic valve is arranged on the water adding opening, a second electromagnetic valve is arranged on the medicine adding opening, a liquid level meter is installed on the outer side face of the medicine adding tank, a metering pump is arranged on a water supply pipeline of the boiler, a water quality monitor is arranged on the inner wall of the boiler, and the system further comprises a controller which is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the liquid level meter, the metering pump and the water quality monitor. The utility model provides an automatic boiler dosing device which solves the problems that an existing boiler dosing device is low in operation efficiency, high in safety risk and high in maintenance cost.

The utility model discloses fuel gas water heating equipment, which relates to the technical field of water heating equipment, and comprises a main machine body, a fuel gas water heater and a water heater, the fan and water pump assembly is installed on the main machine body and comprises a driving device, a fan assembly and a water pump assembly, the fan assembly and the water pump assembly are in driving connection with the driving device, the fan assembly is communicated with the air path system, and the water pump assembly is communicated with the water path system. The driving device is used for controlling the fan assembly and the water pump assembly to operate, so that the fan assembly drives airflow to flow along the air path system, and the water pump assembly drives water flow to flow along the water path system. According to the technical scheme, the cost of the gas water heating equipment can be reduced, the size of the whole machine is reduced, and meanwhile the assembling efficiency of the whole machine can be improved.

The utility model discloses a PTC heating device, an air supply device and air treatment equipment, and belongs to the technical field of electric appliances, in the PTC heating device, a plurality of heating units are arranged in a zigzag mode along a fold line track, so that the PTC heating device can be matched with an arc-shaped or curve-shaped air outlet duct, and the PTC heating device can be applied to the air supply device with the curve-shaped air outlet duct. Because each heating unit is arranged on one line segment of the fold line, the heating piece and the heat dissipation piece of each heating unit can roughly extend in the same direction, the curvature difference between the heating piece and the heat dissipation piece is reduced, the problem that a gap is generated between the heating piece and the heat dissipation piece is solved, the attaching degree of the heating piece and the heat dissipation piece is improved, and the service life of the heating piece and the heat dissipation piece is prolonged. The contact area of the heating piece and the heat dissipation piece is increased, and the heating uniformity is improved. Moreover, the plurality of heating units are mutually connected through the connecting assemblies, on one hand, the structural integrity of the heating device is guaranteed, and on the other hand, the overall heating uniformity of the heating device can be improved.

The invention discloses a safe and energy-saving power utilization system of an air compression station driven by an air floating shaft, and relates to the technical field of air compression stations, operating parameters of all equipment in the air compression station are monitored in real time through a data acquisition module, the operating state of an air compressor can be adjusted through a variable frequency driving module according to the real-time air utilization requirement, unnecessary energy consumption is avoided, and the power utilization efficiency of the air compression station is improved. The pressure of a pipe network is monitored through a pressure sensor, the output air pressure of an air compressor is controlled within the optimal range, and energy waste caused by too high pressure is avoided; waste heat generated in the operation process of the air compressor is recycled through the energy recycling module, and the energy requirements of other links are reduced; when the multiple air compressors operate through the linkage control module, the system automatically distributes loads, it is ensured that each device operates in an efficient interval, and the loads are balanced; a protection mechanism is automatically triggered through the safety protection module under an abnormal condition, so that the safety of equipment and personnel is effectively ensured; and the control strategy of the control center ensures that the air compression station equipment is always kept stable in the operation process.

The invention discloses a green data center key cooling system, and relates to the technical field of data center energy saving and heat management. The system comprises a cabinet, a cold and hot channel, a refrigeration device, a waste heat recovery device and a control system. The refrigeration device comprises an indoor refrigeration unit, an outdoor heat dissipation unit and a fluorine pump energy-saving unit, and heat exchange and cooperative operation are achieved through pipelines. The cold and hot channel is provided with a guide plate and an adjustable air valve to optimize airflow distribution; the waste heat recovery device comprises a fluorine-fluorine heat exchanger, a heat pump system and a circulating medium box, and recovery and reutilization of heat energy are achieved. The control system integrates a lightweight edge AI module, constructs a multi-stage temperature sensing and load prediction mechanism, dynamically adjusts the power output of each cooling unit, and supports redundant fault-tolerant switching. The system intelligently switches the operation modes of the fluorine pump and the heat dissipation unit based on the external temperature and the thermal load prediction result, energy consumption is effectively reduced, and the energy efficiency ratio is increased.

The utility model relates to an electric heating technology, and aims to provide a dual-function heating structure for a hot drink vending machine. In the product, the main body parts of the electric heating pipe and the metal water pipe are positioned in the aluminum casting wrapping body, the aluminum casting wrapping body is connected with the fin structure, and the aluminum casting wrapping body and the fin structure are of an integrated structure; a fan is arranged in the air duct; an air duct outlet is connected with the air guide box body; an air inlet and an air outlet are oppositely formed in the side face of the air guide box body, and the fin structure is installed in the air guide box body through an opening in the upper portion of the air guide box body, so that air exchanges heat with the fin structure in the air guide box body. According to the product, the functional requirements of two different heating media can be met by only one electric heating system, so that the overall energy consumption, the internal installation space, the comprehensive manufacturing cost, the circuit control logic, the equipment stability and the like of the machine are well optimized and improved.

An information processing method includes: selecting M blocks as M selected blocks from among N blocks for driving at least one of an actuator or a heater included in an apparatus, in accordance with an input operation performed by an operator; generating an application, by setting the order of the M selected blocks in accordance with an input operation performed by the operator; consulting a rule that prohibits two or more given blocks from being executed in a given order, and when information included in the application that indicates the order of the M selected blocks correlates with the given order, modifying the application by changing the order in which each of the M selected blocks is executed; and outputting the modified application.

To suppress shortage of the number of connection terminals of a control device that controls a hot water supply heater.SOLUTION: A hot water supply heater 1 includes a control device 70A and a switching circuit 91 capable of switching a heating remote controller 73 that becomes in a communication state. The switching circuit 91 includes: a plurality of control device side connection parts A1-A4, B1-B3 having a plurality of first ports A1-A4 and a plurality of second ports B1-B3; first transistors TR1A-TR10A; and second transistors TR1B-TR10B. The switching circuit is configured so that remote controller side connection parts D1-D10 to be communicably connected to input / output terminals T8, T9 out of the plurality of remote controller side connection parts D1-D10 are switched in accordance with a combination of a high-level signal and a low-level signal of a switching signal in the plurality of first ports A1-A4 connected to emitters E of the respective second transistors TR1B-TR10B and the plurality of second ports B1-B3 connected to bases B of the respective second transistors TR1B-TR10B.SELECTED DRAWING: Figure 3

The utility model discloses a volute assembly, a fan assembly and a heat pump water heater, and belongs to the technical field of electrical equipment. Wherein the volute assembly comprises a first shell and a second shell, the first shell is provided with an air outlet and an air inlet, one side of the first shell is provided with a mounting port, and an included angle is formed between the orientation of the mounting port and the height direction of the volute assembly; the second shell is provided with a mounting part used for mounting a fan, the second shell is mounted at the mounting opening and detachably connected with the first shell, the second shell and the first shell form an air duct, and the air duct communicates with the air inlet and the air outlet. The volute assembly can be disassembled on the side face of the heat pump water heater, the disassembling difficulty of the draught fan is remarkably reduced, the maintenance efficiency of the draught fan is improved, the application scenes of the volute assembly can be increased, and the volute assembly can be flexibly applied to the installation environment with the narrow space in the height direction.

The utility model discloses a draught fan water pump assembly and a water heater, and relates to the technical field of water heaters, the draught fan water pump assembly comprises a driving device, the driving device is at least provided with a first output end and a second output end, and the first output end and the second output end are configured to be capable of independently outputting power; the fan assembly comprises a wind wheel in driving connection with the first output end, and the driving device drives the wind wheel to rotate through the first output end; and the water pump assembly comprises a pump wheel in driving connection with the second output end, and the driving device drives the pump wheel to rotate through the second output end. According to the technical scheme, the fan and the water pump can be integrated into a whole and share one driving device, and when the driving device is applied to the water heater, the cost of the water heater can be reduced, the size of the water heater is reduced, and the assembling efficiency of the water heater is improved.

The invention discloses a control method of a gas water heating device, the gas water heating device comprises a combustion device, a first heat exchanger and a second heat exchanger which are arranged in sequence, flue gas generated by the combustion device flows through the first heat exchanger and the second heat exchanger in sequence, and at least part of water flow entering the gas water heating device flows through the second heat exchanger and the first heat exchanger in sequence; the gas water heating device further comprises an atomization cavity and an atomization generator, the atomization cavity communicates with the heat exchange cavity of the second heat exchanger so that condensate water generated in the second heat exchanger can flow into the atomization cavity, and the atomization generator is used for atomizing the condensate water flowing into the atomization cavity so that the condensate water can form water mist. The control method comprises the steps that the heat load needed by the gas water heating device for heating water entering the gas water heating device to the preset temperature is obtained; and controlling the working power of the atomization generator based on the thermal load. The problem that water mist formed by the condensate water atomization device is prone to secondary condensation at the position of the smoke exhaust pipe, and consequently water drips from the smoke exhaust pipe can be solved.

The invention discloses a water heater and an anti-corrosion design method thereof, and the water heater comprises an inner container which comprises a metal tank body and a first insulating layer covering the inner wall of the metal tank body; the metal part is arranged in the inner container and is electrically connected to the metal tank body; the anti-corrosion assembly comprises an electronic anode which extends into the inner container; the direct current power supply module comprises a positive electrode electrically connected to the electronic anode and a negative electrode electrically connected to the metal tank body, and is configured to load weak current voltage between the metal tank body and the electronic anode; the total area of the exposed metal surface, making direct contact with water in the inner container, of the metal part is smaller than or equal to 0.5 m < 2 >. The direct-current power supply module loads weak current voltage between the metal tank body and the electronic anode and between the metal part and the electrode anode, so that the anti-corrosion requirement of the inner container and the metal part can be met, the risk of hydrogen evolution explosion is reduced, the potential safety hazard of electric leakage of an anti-corrosion assembly is reduced, and the electric control design difficulty of the water heater is further reduced.

The invention relates to the technical field of heat pump drying, and discloses a frequency conversion control drying method and a frequency conversion water source high-temperature drying heat pump unit which comprises a mounting bottom plate, a compressor arranged at the upper end of the mounting bottom plate and an air inlet pipe arranged at the upper end of the compressor. The dredging unit is arranged on the air inlet pipe and comprises an expansion part and an air inlet cleaning part which are arranged in the air inlet pipe; by arranging the dredging unit, when the compressor provides high-temperature gas to dry a metal material, once a filter screen in the compressor is blocked, the cleaning air inlet component can be automatically triggered through the expansion component, so that the cleaning air inlet component cleans the blocked filter screen, and normal air inlet and air outlet of the compressor are ensured; and continuous supply of hot air is ensured, the drying efficiency of the metal materials is improved, workers do not need to clean the filter screen regularly, and the labor cost and the maintenance difficulty are effectively reduced.

The invention discloses an adjustable coupling agent heating device, and relates to the technical field of medical instruments.The bottom end of a heating box main body is fixedly connected with a heating bottom box, the middle of the outer side of the heating box main body is fixedly connected with a mounting outer clamping box, and a heating inner net is embedded in the bottom of the inner side of the heating bottom box; one side of the top face of the heating bottom box is fixedly connected with a circulating pump through a pipeline, heat of circulating hot water is secondarily stored and conducted through the heat conduction liquid bag, and then the heat in the heating box body is distributed more evenly; by means of the characteristic that the interior of the heat conduction liquid bag can elastically deform, the heat conduction liquid bag is attached to the outer side of the coupling agent hose more tightly, the phenomenon that the coupling agent is heated unevenly in the heating process is effectively prevented, and the phenomenon that the coupling agent hose is fused and damaged due to local high temperature is effectively avoided; discomfort caused by large difference between the temperature of the coupling agent and the skin temperature of a patient is prevented, and the using effect of the heating device is effectively improved.

The invention relates to the technical field of storage and distribution of liquefied gas, and particularly discloses a pre-cooling, filling and waste gas treatment system of an LNG fuel ship, which comprises the following steps: S1, connecting a liquid nitrogen tank car with a gasification pry to pre-cool a fuel cabin of the LNG fuel ship; s11, low-temperature nitrogen / liquid nitrogen of the liquid nitrogen tank car is conveyed to the input pipeline through the gasification pry, and the low-temperature nitrogen / liquid nitrogen is conveyed to the fuel cabin through the input pipeline; s2, the LNG tank car is connected with a gasification pry to generate gasified natural gas to expel nitrogen in a fuel cabin of the LNG fuel ship, and LNG replacement of the fuel cabin is completed; s3, the LNG tank car achieves gas-phase pressurization through a gasification pry, LNG is conveyed to a fuel cabin through an input pipeline, and LNG filling of the fuel cabin is completed; and S4, the LNG tank car achieves gas-phase pressurization through the gasification pry and the filling pry, LNG enters an LNG immersed pump of the filling pry, the LNG is conveyed to the fuel cabin through the LNG immersed pump, and LNG filling of the fuel cabin is completed.

The utility model relates to the field of boiler preheating, in particular to a boiler preheating exchange system which comprises a heat exchange assembly and a quick coupler, and the heat exchange assembly comprises a heat exchanger, a heat exchange water inlet pipe, a heat exchange water outlet pipe, a cooling water inlet pipe and a cooling water outlet pipe. One end of the heat exchange water inlet pipe and one end of the heat exchange water outlet pipe are fixedly connected to the upper portion of the side wall of the heat exchanger in a spaced mode, and one end of the cooling water inlet pipe and one end of the cooling water outlet pipe are fixedly connected to the lower portion of the side wall of the heat exchanger in a spaced mode. And one end of the fixed joint is in threaded connection with the other end of the water pipe in the heat exchange assembly, and the other end of the fixed joint can be quickly inserted and fixed at one end of the inserting joint, so that the effects of converting the heat energy of the heated cooling water in the air compressor cooling system to preheat the boiler and improving the utilization rate of the heat energy are achieved.

The invention provides a spray type water working medium quasi-saturated compression high-temperature heat pump system, and belongs to the field of compression heat pumps. The problems that in the water vapor compression process, the exhaust degree is large, and large-amplitude temperature rise flexible heat supply is difficult to achieve are solved. The system comprises a condenser, an expansion valve, a liquid storage tank, an evaporator, a compressor, an atomization buffer tank, a gas-liquid jet atomizer and a regulating valve, the atomization mode comprises a gas-liquid ejector atomization mode, a high-pressure condensate + atomization nozzle mode or an atomization high-pressure pump + atomization nozzle mode, and is used for preparing atomized liquid drops with the particle size of 50-500 nm for quasi-saturation compression; or single-stage compression is further optimized into a two-stage compression form, so that higher heating temperature and more stable system operation are realized. The micro-nano spraying technology is utilized, the mass fraction of liquid in mixed airflow is always kept between 5% and 10%, heat conversion in the system can be achieved, and through multi-stage continuous phase change cooling, the superheat degree of compressed exhaust is effectively reduced, and compression power consumption is reduced.

A dehumidifier comprising housing (10, fig. 1) featuring an air inlet (20, fig 1) and air outlet (21, fig. 1) coupled together via a channel, with one or more fans positioned within the channel to draw an airflow through the housing. Inside the housing, there are two systems; a dehumidifying system (10, fig. 1) configured to remove moisture from the airflow and a carbon capture system (40, fig.1 ) positioned in the channel downstream from the dehydration system and configured to remove carbon dioxide from the airflow. The carbon capture system may comprise a cartridge containing a porous, regenerative carbon dioxide sequestering material 46 such as a zeolite or melamine. The cartridge may comprise a weight sensor 47 and processor, configured to monitor the saturation of the carbon capture material by determining its weight. A hemi cylindrical dehumidifier cartridge is also described.

The utility model provides a small-molecular-group water generating device and a water heater. The small-molecular-group water generating device comprises a cylindrical part, a water inlet pipe and a water outlet pipe, the electromagnets are arranged on the cylindrical part and used for providing a magnetic field; the water pipe penetrates through the cylindrical part and is used for conveying water from one end of the cylindrical part to the other end of the cylindrical part, so that water molecules flowing through the cylindrical part are cut by the magnetic field; and the controller is connected with the electromagnet and is used for controlling the magnitude of the current flowing through the electromagnet so as to adjust the intensity of the magnetic field. The magnetic field of the small molecular group water generating device is flexible and convenient to control.

The invention discloses a biliary drainage reinfusion device which comprises a nasobiliary duct, a drainage bag, a sealing cylinder, a heating mechanism, a filtering mechanism and a reinfusion tube, the drainage bag is arranged at the output end of the nasobiliary duct, the sealing cylinder is connected to the output end of the drainage bag, and the heating mechanism and the filtering mechanism are arranged in the sealing cylinder. And the feedback pipe is connected to the output end of the sealing cylinder and is used for feeding back the heated and filtered bile into the body of the patient. By arranging the heating mechanism and the filtering mechanism, bile which is drained and returned is heated and filtered, impurities such as tissue fragments in the bile are removed and intercepted, the bile is prevented from entering the body of a patient, meanwhile, pipeline blockage caused by thick bile is avoided, discomfort caused by the fact that low-temperature bile enters the human body is reduced by heating the bile, and the treatment effect is good. The activity of enzymes in the bile is maintained. And by arranging the feedback tube, the integral closed drainage feedback device is realized, and the pollution is reduced.