42results about How to "Heat stable" patented technology

This invention relates to the field of concrete process temperature control technology, and discloses a method and system for continuous regulation of the concrete steam curing process based on temperature gradient feedback. The method includes: constructing a steam curing temperature time-series dataset; reconstructing the temperature field inside the steam curing kiln; compensating for ambient temperature on the original temperature measurement data of the component surface; forming a steam regulating valve opening control sequence; and performing online parameter correction. Compared to existing technologies that directly use the component surface temperature measurement value as the steam valve regulation feedback, this invention addresses the technical problem of failing to obtain an effective surface temperature gradient reflecting the component's hydration heat release state, especially under conditions of uneven steam injection and localized heat dissipation differences within the steam curing kiln. This application improves the accuracy of temperature gradient feedback control during the concrete steam curing process by reconstructing the temperature field inside the steam curing kiln and incorporating the estimated ambient temperature at the component surface measurement points into the surface temperature compensation and differential gradient calculation process.

The invention belongs to the technical field of graphene, and particularly relates to graphene leather capable of realizing temperature-sensitive color development and a preparation method of the graphene leather. As the graphene heating functional layer adopts the high-thixotropic silver paste, the printed circuit pattern is clear in edge, uniform in thickness and extremely high in consistency with the designed pattern; and a clear interface is formed between a silver paste circuit and leather fibers, and improper penetration is avoided. And the circuit resistance value consistency is excellent (the deviation is controlled within + / -5%), so that rapid, uniform and stable planar heating can be realized after the graphene heating layer is connected, and the local overheating hidden danger is perfectly eliminated. According to the present invention, the natural texture and the soft touch feeling of the leather are maintained while the efficient and safe heating performance with the visual color developing function is achieved.

The utility model discloses a kind of explosion-proof heaters of uniform heating, including junction box, heating pipe and heating cylinder, the upper side of the outer wall of heating cylinder is respectively provided with water inlet pipe and water outlet pipe, the inside of heating cylinder is horizontally provided with shunt plate below water inlet pipe, shunt plate is provided with multiple shunt holes, shunt plate below is provided with drainage plate, the inside of shunt plate and drainage plate is provided with uniform flow plate in the inside of heating cylinder, and shunt plate is provided with multiple uniform flow holes.The shunt plate provided by the utility model passes through evenly distributed shunt hole, and the medium flowing is initially evenly divided to different areas of the front end of heating cylinder, to avoid that local flow rate difference is too large;Drainage plate further guides medium flow, promotes mixing and reduces stagnation area;After shunting and drainage, the medium finally passes through uniform flow plate to the medium final homogenization, eliminate local flow rate difference, so that the medium enters heating area with more stable state, to effectively realize the uniform, efficient heating of medium.

The application discloses a flexible multifunctional electromagnetic shielding film and a preparation method and application thereof. The electromagnetic shielding film comprises a carbon nanotube film, a high magnetic permeability layer and a high electrical conductivity layer combined with a first surface and a second surface of the carbon nanotube film respectively, and the electrical conductivity of the high magnetic permeability layer, the carbon nanotube film and the high electrical conductivity layer increases in turn, and the magnetic permeability decreases in turn. The application provides an electromagnetic shielding material with a three-layer structure. Due to the difference in the electrical conductivity and the magnetic permeability of the materials between the three layers, the electromagnetic wave experiences an 'absorption-reflection-reabsorption' process after entering the material, so that the material presents a low reflection characteristic. The Joule heating performance of the electromagnetic shielding film is good, the temperature response speed is fast when a voltage is applied, the stability of the electromagnetic shielding film during heating is excellent, the electromagnetic shielding film can remain stable for a long time, and the electromagnetic shielding film shows great application potential in the electromagnetic protection field and the thermal management field of high-integration electronic equipment.

The invention discloses a multi-channel heating control device and a control method thereof, and belongs to the field of medical instruments, the heating control device comprises a plurality of heating channels, a heating load in each channel is connected with a heating unit, the heating units are connected with a data processing unit, and a data source of the data processing unit is from a temperature acquisition unit. A data source collected by the temperature collecting unit is from the heating unit, a heating threshold value is set in the data processing unit, heating is started when the temperature reaches the lower limit of the heating threshold value, heating is stopped when the temperature reaches the upper limit of the heating threshold value, the same heating mode is adopted in the multiple channels for heating in turn, and heating equipment operates for heating in a low-power state. The heating device can reduce sudden change of current of equipment caused by starting of a power supply and influence of electromagnetic radiation of the equipment on other equipment in the same environment, and can ensure stable heating and stable operation of the equipment.

This invention relates to the technical field of experimental equipment before leaf spring production, specifically a temperature control device and system for a leaf spring processing quenching furnace. The system includes a furnace body, a mounting rod, a first temperature measuring module, and a voltage detection module. The furnace body is fixedly mounted on a base support. A sealing cover is rotatably mounted on the front end of the furnace body, and a mounting hole is provided on the rear side of the furnace body. A PLC control module is fixedly mounted on the front end face of the base support. The mounting rod is fixedly installed in the mounting hole, and has primary and secondary wiring holes. By configuring the first temperature measuring module as a combination of a heat-conducting plate, a positioning cover, a positive contact wire, and a negative contact wire, and by providing a threaded seat and a force-bearing seat on the end face of the heat-conducting plate, the positioning cover is screwed onto the threaded seat, thereby forming a synchronous positioning connection between the positive and negative contact wires. Compared to traditional welding connections, this method offers superior stability, thus improving the operational stability of the first temperature measuring module.

The utility model relates to an electric heater, in particular to a film heating device and an electric heater for an electric automobile. A film heating device includes: an electric heating plate including a heating substrate and an electric heating film disposed on the heating substrate; and the heating fins are arranged on one side or two sides of the electric heating plate so as to dissipate heat generated by the electric heating film. According to the film heating device provided by the utility model, the electric heating plate of the electric heating film is adopted for heating, heat dissipation is carried out through the heating fins, and the film heating device is compact in overall structure, stable in heating, high in heating speed and long in service life.

The utility model relates to the field of textile, concretely relates to a leveling mechanism of cloth inspecting machine, include: body and be located the rear side of body for cloth guide's guide roller, be located the preheating pipe of body and be located guide roller one side, the inside detachable mounting of preheating pipe has immersion type tubular heater. The utility model through atomizing nozzle even spraying hot water mist, avoid the cloth damage caused by ironing board contact, especially adapt sensitive material, spiral flow guide plate and immersion type heater realize water flow even fast heating in cooperation, guarantee temperature stability, make cloth heat sufficient, stress release even, significantly improve leveling quality and stability, and non - contact type spraying mode fundamentally avoided the problem that fiber fluff adheres sintering forms the dirt of scale on the surface of high -temperature ironing board, prevent the cloth hook silk, scratch and so on defects caused by dirt, reduce the equipment cleaning maintenance frequency simultaneously, improved the continuous operation reliability of cloth inspecting machine.

The invention discloses a sectional type roasting temperature control method suitable for a synthetic resin binder material, and relates to the technical field of temperature control, furnace body data is collected based on a temperature control platform, a digital twinborn model is constructed, and a plurality of temperature control traction pools are configured corresponding to the digital twinborn model, the temperature control traction pool comprises a control line, a main pool and a temperature control factor in the main pool, the main pool is configured corresponding to the digital twin model, and the control line is configured corresponding to the furnace body temperature controller. Data needing temperature control can be rapidly and accurately analyzed through the temperature control traction pool, the temperature of the furnace body can be collected and analyzed in real time, the temperature needing to be maintained can be rapidly obtained, temperature control data does not need to be transmitted, only temperature control factors need to be started, and the temperature control traction pool can be used for rapidly controlling the temperature of the furnace body. The number and the positions of the connected temperature control factors are obtained through the mobile nodes, the power needing to be controlled is determined, the temperature can be continuously and linearly controlled, and the temperature control response efficiency can be greatly improved.

The utility model relates to industrial automation detection auxiliary equipment technical field, concretely discloses a kind of electric heat tracing collection devices of guide pressure pipe with multi-station sensing, comprising: control box, as the core control unit of device, the control box bottom end is butted with connecting frame, and connecting frame is installed in the surface of connecting plate, and connecting plate is fixed on the surface of guide pressure pipe by binding bandage;The control box side is equipped with wiring panel, and the connecting frame one end is fixedly connected with control box.This electric heat tracing collection device of guide pressure pipe with multi-station sensing, device includes temperature sensor probe and pressure sensor probe by sensor probe, can carry out multi-parameter real-time acquisition to guide pressure pipe different station, data is transmitted to the control circuit in control box by electric connection, control circuit combines acquisition data intelligent analysis, accurately regulates and controls heating sheet operating state by connecting wire, can be according to guide pressure pipe actual temperature dynamic adjustment heat tracing.

The utility model discloses composite film stretching equipment which comprises a rack, first shaft rollers, second shaft rollers, third shaft rollers and fourth shaft rollers are sequentially arranged in the rack from left to right, the number of the first shaft rollers, the number of the second shaft rollers, the number of the third shaft rollers and the number of the fourth shaft rollers are all two, the rear side of the first shaft roller on the upper side is connected with a first motor, and the rear side of the second shaft roller on the lower side is connected with a second motor. The first motor is fixedly connected with the rack, the rear side of the third shaft roller on the upper side and the rear side of the fourth shaft roller on the upper side are each connected with a first gear set, and a bevel gear is arranged on the rear side of a second gear set; and the connecting shaft is arranged behind the second gear set, a bevel gear is arranged outside the connecting shaft, the right end of the connecting shaft is connected with a second motor, and the second motor is fixedly connected with the rack. According to the composite film stretching equipment, constant-temperature stretching can be conveniently conducted on a composite film, the stretching stability of the composite film is guaranteed, the stretching strength can be controlled, and the composite film can be conveniently stretched by different lengths.

The utility model discloses multi -cavity heat -accumulating heating heating device, including bearing frame, the first water tank of fixed connection in bearing frame upper end, the first fixed cylinder of fixed connection in the upper portion of first water tank lateral wall and the heat dissipation coil pipe of fixed connection in first fixed cylinder lateral wall, the lateral wall of first water tank is fixed with the water replenishing tank. The utility model discloses through the nesting structure and the communication groove design of heat storage cavity and water storage cavity, solved the problem that traditional boiler heat energy is easy to lose: the heat storage cavity (can fill liquid heat storage medium) formed between first inner jar and second inner jar, through the communication groove of second fixed cylinder lateral wall can realize the free flow of heat storage medium, and the water storage cavity formed between first inner jar and first water tank is set outside heat storage cavity, and the water body in water storage cavity is heated conveniently, when the high temperature medium in heat storage cavity passes through the communication groove, heat is transferred to water storage cavity through the wall surface of second inner jar, first inner jar first, and then is delivered to heat dissipation coil pipe from hot water pipe, reduces the loss of heat directly to the outside environment.

The application belongs to the technical field of high polymer materials, and particularly relates to a heat-resistant blister packaging box and a preparation method thereof. According to weight parts, the heat-resistant blister packaging box comprises the following raw materials: 100 parts of polylactic acid, 4-8 parts of heat-resistant stabilizer, 1-3 parts of nucleating agent, 0.5-1 parts of chain-extending compatibilizer, 0.1-0.5 parts of antioxidant, and 0.1-0.3 parts of release agent. The application designs a multifunctional heat-resistant stabilizer with an aromatic imide-sulfone-siloxane structure, and constructs a synergistic crystallization system with a phenyl zinc phosphonate nucleating agent, and cooperates with a segmented temperature control rapid heat setting process. The heat distortion temperature of the obtained blister packaging box can reach 93.1 DEG C, the light transmittance is kept above 89.5%, the haze is below 3.5%, the forming cycle is shortened to 6-10 seconds, and there is no small molecule migration risk, so that the industrial production needs of the heat-resistant transparent packaging for food contact are met.

This application belongs to the field of combustion equipment technology, and particularly relates to a combustion device based on nitrogen-oxygen separation. The device includes a combustion unit with at least two oxygen inlet pipes on its outer side. These pipes are connected to a gas supply pipe, and a nitrogen-oxygen separation device is installed on the gas supply pipe. This application utilizes the heat from the exhaust gas discharged from the combustion unit to heat the thermally conductive spacer within the nitrogen-oxygen separation device. Air is then introduced into the thermally conductive inner tube of the nitrogen-oxygen separation device, causing the 5A zeolite molecular sieve within the inner tube to separate oxygen and nitrogen from the air at high temperature. The separated oxygen enters an oxygen storage pipe, allowing high-purity oxygen to be continuously delivered to the combustion unit through the oxygen storage pipe. This significantly reduces the formation of nitrogen oxides within the combustion unit and lowers the cost of oxygen usage.

The utility model discloses a kind of special-shaped electric heating wire of anti-collapse, belong to electric heating wire technical field, including ceramic piece, several electric heating wire bodies are installed in the ceramic piece, ceramic piece is fixedly connected with mounting plate outside, ceramic clamp is overlapped on the ceramic piece, and the ceramic clamp is clamped in electric heating wire body outside.In the utility model, mounting plate and ceramic piece are integrated structure, when installing, electric heating wire body and ceramic piece can be integrally supported, assembly process is simplified, and yield is improved, and finally, the utility model is realized by the cooperation of ceramic piece, mounting plate, ceramic clamp, clamping groove, limiting column and conducting wire etc. structure, the stable support and reliable limiting when electric heating wire body operates, avoid electric heating wire body collapse or loose, ensure that heating is uniform, heat output is stable, prolong the service life of electric heating wire body, improve energy-saving effect and yield simultaneously, with stronger practical value.

The invention provides a two-stage needle coke production device and method. A two-section type needle coke production device comprises a heat exchange device, a raw material preheating furnace, a fractionating tower and an adjusting device, the heat exchange device is connected with the raw material preheating furnace through a pipeline, the raw material preheating furnace is connected with the fractionating tower through a pipeline, and the adjusting device is respectively connected with the raw material preheating furnace and the fractionating tower.

This utility model discloses a gas-fired wall-hung boiler skid structure for a heating system, including a skid frame. A condensing wall-hung boiler is installed inside the skid frame. The output end of the condensing wall-hung boiler is connected to a water supply pipe. The output end of the water supply pipe is connected to a primary side water inlet pipe. The output end of the primary side water inlet pipe is connected to a plate heat exchanger. The plate heat exchanger is connected to a primary side return water pipe. The primary side return water pipe is connected to a return water pipe. The return water pipe is connected to the condensing wall-hung boiler. A secondary side return water pipe is installed at the bottom of the plate heat exchanger. A secondary side water supply pipe is installed on the plate heat exchanger. A flue gas heat exchange assembly is installed on one side of the skid frame. The flue gas heat exchange assembly includes a flue gas collection pipe. The input end of the flue gas collection pipe is connected to the flue gas outlet of the condensing wall-hung boiler. The output end of the flue gas collection pipe is connected to a whitening heat exchange chamber. A whitening fan is installed at the bottom of the whitening heat exchange chamber. The output end of the whitening heat exchange chamber is connected to an exhaust pipe.

The invention relates to the technical field of waste gas treatment and waste heat recycling, and discloses a waste heat recycling system for treatment of packaging bag printing waste gas. The thermal incinerator is used for treating VOCs waste gas, the hot water heat exchanger is connected with high-temperature flue gas of the thermal incinerator in a heat exchange mode, and the circulating water pipe network is communicated with the water side of the hot water heat exchanger and used for conveying hot water to the hot end for printing equipment. A heat preservation structure is arranged on the periphery of the discharging pipe; the heat preservation structure comprises a heat preservation layer arranged on the outer side of the discharging pipe and an outer protection layer arranged on the outer side of the heat preservation layer, and the heat preservation layer comprises a heat preservation coating formed by coating a heat insulation and preservation material; the outer protective layer comprises a straight-section outer protective pipe and a bent-section outer protective pipe, and a sealing structure for connecting the straight-section outer protective pipe and the bent-section outer protective pipe is arranged between the straight-section outer protective pipe and the bent-section outer protective pipe.

The utility model provides a kind of electromagnetic heating device of wire drawing machine die head, it is related to plastic weaving industry production technical field, including wire drawing machine die head, fireproof insulation cotton, high temperature cable, frequency conversion controller, insulating device, thermocouple;Fireproof insulation cotton is set in wire drawing machine die head outside, high temperature cable is successively wound in the outside of fireproof insulation cotton along the same direction, frequency conversion controller is connected respectively with the both ends of high temperature cable, insulating device is set in the outside of high temperature cable, thermocouple is set on insulating device;The utility model has adopted more suitable structure design of wire drawing machine die head, realized heating fast, temperature stability, energy conservation, safe and reliable technical effect, improve the product quality and production efficiency of plastic weaving bag wire drawing process.

The invention provides a multifunctional film for intelligent wearing and a preparation method thereof, and relates to the technical field of intelligent wearing materials. According to the multifunctional thin film for intelligent wearing and the preparation method of the multifunctional thin film, the thin film is formed by alternately overlapping the graphene carbon nanotube layers and the nano-silver layers, the thin film has toughness after hot pressing treatment, and the sheet resistance is smaller than or equal to 25 ohms; the graphene carbon nanotube layer is formed by electrostatic spinning of a graphene carbon nanotube composite dispersion liquid, and the nano-silver layer is formed by electrostatic spinning of a spinning solution containing silver nitrate; the graphene carbon nanotube composite dispersion liquid is prepared from the following raw materials: an NMP (N-Methyl Pyrrolidone) solution of polyvinylpyrrolidone (K30), single-layer graphene powder and few-walled carbon nanotube powder; the silver nitrate-containing spinning solution is prepared from the following raw materials: an NMP (N-Methyl Pyrrolidone) solution of polyvinylpyrrolidone (K30) and a silver nitrate solid. And by adopting the electrostatic spinning and hot pressing processes, the film has the functions of sterilization, infrared physiotherapy and heating, is washable and rubbed, is low in cost and is suitable for large-scale production.

This utility model discloses a portable bamboo furniture frame bending machine, relating to the field of bamboo furniture processing technology. It includes a base, with a conveyor belt fixedly connected to its upper surface. A fixed frame is fixedly connected to the left side of the upper surface of the conveyor belt. Synchronous cylinders are fixedly connected to both sides of the upper surface of the fixed frame. The lower end of each synchronous cylinder passes through the fixed frame and is fixedly connected to a movable frame inside the fixed frame. Heating rollers are evenly distributed and rotatably connected to the inner surface of the movable frame. Slider blocks are fixedly connected to the front, rear, left, and right sides of the outer surface of the movable frame. Compared with existing ordinary bamboo furniture frame bending machines, this portable bamboo furniture frame bending machine can automatically limit and convey the frame, and heat the frame during conveying. It eliminates the need for manual processing of each frame individually; simply placing the frame to be processed on the conveyor belt allows for automatic transport and processing, greatly improving the convenience and efficiency of the process.

The utility model discloses a temperature control formula electric flame stove head and have its electric flame stove, wherein, this temperature control formula electric flame stove head, including panel, platen, plasma electrode assembly and fan, the panel has the electrode sheath that protrudes upwards to have the flame port to the upper end of electrode sheath, platen is established below the panel and is sealedly defined air cavity between the panel, plasma electrode assembly is established in the electrode sheath, the fan is established at the bottom of platen, is used for blowing into the air in air cavity, and makes air enter to the electrode sheath after blowing out from the flame port. The utility model discloses temperature control formula electric flame stove head and electric flame stove, utilize the fan to blow into the air in air cavity, make air pass through electrode sheath and blow out from the flame port again, thereby auxiliary realization temperature control, in practical application, combine high pressure pulse regulation control mode, make the temperature of stove head can effectively control target range, can reduce the generation of ozone and nitrogen oxides significantly, thereby promote environmental friendliness and use safety.

The utility model discloses a polyurethane production auxiliary agent preheating device, which relates to the technical field of polyurethane production auxiliary equipment, and comprises a table frame, an auxiliary agent preheating and containing mechanism, an auxiliary agent adding assembly, a nitrogen injection assembly, a stirring mechanism and a heating oil circulation heating mechanism, the auxiliary preheating and containing mechanism comprises heating tanks, the heating tanks are installed on the tops of the tank frames respectively, and internal observation assemblies are installed in the middles of the front sides of the heating tanks. According to the polyurethane production auxiliary agent preheating device, heating oil is added into the heating box, the heated heating oil circularly enters the heating interlayer to heat an auxiliary agent in the heating tanks, the nitrogen injection assembly is arranged, nitrogen can be fed into the top in the heating tanks before heating, the auxiliary agent is prevented from reacting with oxygen in air, the two heating tanks are arranged, and the heating efficiency is improved. The auxiliary agents can be alternately heated, so that the stable supply of the auxiliary agents is maintained in the polyurethane production process.

The utility model discloses a slabstone conveyer belt device of a pizza baking oven, which comprises a first chain, a second chain and a plurality of groups of slabstone strips arranged between the first chain and the second chain, the first chain is formed by connecting a plurality of groups of first chain links end to end, and the second chain is formed by connecting a plurality of groups of second chain links end to end. A mounting plate is fixedly arranged between the first chain link and the second chain link, and the stone plate strip is fixedly arranged on the mounting plate. The stone plate conveying belt device of the pizza baking furnace has the advantages of being simple in structure, stable in operation and capable of achieving continuous production and operation, and product quality and production efficiency can be effectively improved.

A high-frequency heating device (100) of the present disclosure has a placement table (3), a surface wave line (8), an oscillation source (4), and a power supply portion (20). The placement table (3) is capable of placing a heated object (2). The surface wave line (8) is provided below the placement table (3). The oscillation source (4) generates high-frequency electric power. The power supply portion (20) transmits the high-frequency electric power from the oscillation source (4) to the surface wave line (8). A distance between an upper end portion (8c) of the surface wave line (8) and a lower surface of the heated object (2) is set to 10 mm or less.

The utility model discloses a headband elastic material automatic laminating machine, which belongs to the technical field of laminating machines, and comprises a base and a shell arranged on the outer side of the base, and further comprises a drying mechanism arranged in the shell and used for performing sectional drying treatment on a headband; the drying mechanism comprises a drying box located in the shell, breathable cotton plates are embedded in the two sides of the drying box correspondingly, and a set of drying grooves are formed in the two sides of the drying box correspondingly. By means of the mode, sectional type drying treatment is adopted, cloth is preheated step by step, edge curling of the cloth is effectively reduced, the phenomenon that fibers in the cloth are damaged is reduced, glue is heated stably, the subsequent pressing effect is guaranteed, heat energy can be recycled in the drying process, and more energy is saved.

This invention belongs to the field of SERS detection, specifically relating to a double-shell Ag-ZnAl2O4-MOF composite material, its preparation method, and its application in trace detection of organic pollutants. First, ZnAl2O4 nanoparticles are synthesized using a hydrothermal method. Then, the prepared ZnAl2O4 nanoparticles are placed into a prepared MOF growth solution to form a ZnAl2O4-MOF composite structure. Further composite with Ag nanoparticles is then formed to create the double-shell Ag-ZnAl2O4-MOF composite material. The Ag-ZnAl2O4-MOF composite substrate exhibits a synergistic effect of physical and electromagnetic reinforcement. Furthermore, due to the large specific surface area, porosity, and multiple metal sites of the intermediate MOF layer, more hot spots can be formed. The charge transfer effect generated by the composite with ZnAl2O4 produces an electromagnetic reinforcement effect. These characteristics effectively enhance the SERS signal intensity.

The application discloses a combined heat and power frequency modulation system and method, which comprises a boiler and a steam turbine, the exhaust end of the steam turbine is connected with the steam inlet of the boiler through a circulating pipeline, a steam condensing device, a deaerator and a regenerative heating device are sequentially arranged on the circulating pipeline, the system further comprises a plurality of heat supply assemblies connected with different steam extraction positions of the steam turbine, a plurality of steam extraction assemblies connected with different steam extraction positions of the steam turbine, a plurality of low-pressure steam extraction assemblies connected with low-pressure steam extraction ends of the steam turbine, and a plurality of heat storage frequency modulation devices connected with the steam extraction assemblies and the low-pressure steam extraction assemblies and connected to different levels of heat users, the heat storage frequency modulation devices are suitable for storing steam of the steam turbine and injecting the stored steam into low-pressure steam to supply the heat users. According to the operation requirement of the unit, the opening degree of the heat supply assembly and the heat storage frequency modulation device is changed to meet the heat supply requirement of different levels of heat users and maintain the stability of heat supply.

This invention relates to the field of activated carbon production technology and discloses an integrated carbon activation furnace for coal-based activated carbon production. The furnace includes a heating and preheating chamber and a first heating and carbonization chamber located at the bottom end of the heating and preheating chamber. A second heating and carbonization chamber is fixedly installed on the side of the first heating and carbonization chamber facing away from the heating and preheating chamber. A drying and carbonization chamber is fixedly installed on the side of the second heating and carbonization chamber facing away from the first heating and carbonization chamber. A multi-stage coupling is rotatably installed on the side of the heating and preheating chamber facing away from the drying and carbonization chamber. The end of the multi-stage coupling passes through both the first and second heating and carbonization chambers. This invention effectively avoids the defects of traditional structures, such as insufficient material contact with the activator, low material guiding efficiency, and easy agglomeration and coking. While improving production continuity and stability, it also ensures product quality, possessing significant structural and technological advantages.

The utility model discloses an energy-saving gas water heater, which relates to the technical field of water heaters and comprises a mounting box, a water inlet valve is connected to one side of the bottom of the mounting box in a penetrating manner, a gas heating device is fixedly connected to the top of the water inlet valve, and a smoke exhaust pipe is fixedly connected to the top of the gas heating device. The bottom of the fuel gas heating device is fixedly connected with a heat preservation pipe. The igniter is started to heat fuel gas at the top of the combustor, the combustion sheets are ignited by the temperature rise of the fuel gas, the combustion sheets are installed at equal intervals, so that the serpentine pipe clamped in the combustion sheets is heated more uniformly by the temperature of outer flame, the serpentine pipe has a three-end heating length, the heating time of tap water in the serpentine pipe is longer, the fuel gas emission can be reduced, and the energy consumption is reduced. Heated water enters the threaded pipe, so that the temperature of the threaded pipe can be kept stable, the temperature of the heated water stored in the heat preservation pipe cannot be reduced, and after the boiled water is used, the heat-preserved water can be discharged for use, and a large amount of cold water does not need to be discharged.