39results about How to "Prevent overheating damage" patented technology

The invention discloses a method and a device for fluid-bed destructive distillation of oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale solve the problems of high coal burning load due to the fact that all mixed carbocoal enters a coal burning device for coal burning and the like in the prior art. The method for the fluid-bed destructive distillation of the oil shale comprises the steps that destructive distillation reaction is carried out on oil shale raw materials (5) and high-temperature heat carriers from a bed type coal burning device (1) after the oil shale raw materials (5) and the high-temperature heat carriers are mixed in a bed type destructive distillation reactor (23), and oil gas contained in the formed mixed carbocoal is extracted from a steam extracting section (26) in a steaming mode; part of the mixed carbocoal is discharged out of the destructive distillation device after the oil gas is extracted from the mixed carbocoal and the mixed carbocoal is cooled, and the other part of the mixed carbocoal enters a pipe type coal burning device (25); and a first coal burning is firstly carried out on the mixed carbocoal entering the pipe type coal burning device, and then the mixed carbocoal enters a bed type coal burning device for a second coal burning. The invention discloses the device for the fluid-bed destructive distillation of the oil shale, wherein the device for the fluid-bed destructive distillation of the oil shale is used for realizing the method for the fluid-bed destructive distillation of the oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale are mainly used for destructive distillation processing of various kinds of powder oil shale raw materials.

The invention discloses a corrosion inhibition type supercritical water oxidation reactant mixing and pre-oxidizing device. The device is composed of a plurality of reactant mixing-pre-oxidizing device core tubes and outer tubes in a series connection mode along the way, and a core tube channel and an outer tube channel are formed. The core tube channel is sequentially provided with a plurality of reactant A injection ports along the way, the reactant A injection ports are used for injecting reactants A into the outer tube channel in a grading mode, and the outer tube channel is used for stage-by-stage mixing of the reactants A and reactants B and supercritical water oxidation reaction. The mixing and oxidizing process of organic waste and an oxidizing agent is effectively controlled, ultra-high-temperature damage caused by local concentrated heat release is avoided, and intensified corrosion of the high-concentration oxidization agent on equipment materials is relieved. The corrosion inhibition type supercritical water oxidation reactant mixing-pre-oxidizing device is arranged on an entrance of a supercritical water oxidation reactor, the service environment harshness of the supercritical water oxidation reactor is remarkably reduced, the service life of the reactor is prolonged easily, overall maintenance cost in the later stage of the supercritical water oxidation reactor is reduced, and the corrosion inhibition type supercritical water oxidation reactant mixing and pre-oxidizing device can be widely applied to performing supercritical water oxidation reactant on various heavy-pollution industrial wastewater and sludge.

The invention discloses a powder coal dry distillation method and device, and aims to solve the problems that the technical process is, the circulation amount of the solid heat carrier is high, the gas heat carrier needs to be delivered by a gas compressor and the like in the existing powder coal dry distillation technique. The dry distillation method comprises the following steps: A. a powder coal raw material (2), and a high-temperature solid heat carrier and a high-temperature oxygen-free flue gas from a tubular charcoal burner (7) are mixed in a mixing heat transfer region to perform contact heat transfer, and are subject to dry distillation reaction; B. after entrained oil gas is stripped out from semicoke formed in the step A in a stripping section (17), part of the semicoke is cooled and discharged out of the dry distillation device, and the other part enters the tubular charcoal burner; and C. the semicoke entering the tubular charcoal burner contacts charcoal burning air to perform charcoal burning, thereby generating the high-temperature solid heat carrier and high-temperature oxygen-free flue gas. The invention also discloses a powder coal dry distillation device for implementing the dry distillation method. The method and device can be used for dry distillation processing of various types of powder coal.

The present application relates to an inverter derating protection method and controller, which determines the derating coefficient of the inverter, and can wait for the time in the high temperature zone when the junction temperature of its own power tube rises above the initial protection value After the time limit of the limit value, the inverter is derated to run, that is, the power tube can still operate normally within the time limit value of the high temperature zone, thereby improving the output capacity of the inverter; and in the high temperature zone time limit value After a certain period of time, the inverter will be derated, and the inverter will resume normal operation after the junction temperature of its own power tube drops to less than or equal to the initial protection value and wait for a preset period of time, so as to avoid over-temperature damage to the power tube. , and then the derating protection method of the inverter realizes the over-temperature protection of the inverter; in summary, the derating protection method of the inverter provided by the present application takes both the output capability and the over-temperature protection of the inverter into consideration.

The invention discloses a destructive distillation method and a device for a fluidized bed of oil shale to solve the problems that charking loading born by a charking appliance is enabled to be high, charking temperature is hard to control, and the charking appliance is prone to be damaged by over temperature due to the fact that one charking appliance is utilized to conduct charking in the prior art. The destructive distillation method includes the following steps: A. mixing a oil shale raw materials (90) with a high-temperature carrier in a bed type charking appliance (1), enabling the mixed oil shale materials and the high-temperature carrier to enter a bed type destructive distillation reactor (26) to conduct a destructive distillation reaction, stripping carried oil gas in the formed mixed semi-coke through stream, and enabling the mixed semi-choke to enter into a pipe type charking appliance (25); B. conducting one-stage charking on the mixed semi-choke which enters the pipe type charking appliance along the pipe type charking appliance; C. enabling the mixed semi-choke which is conducted the one-stage charking to enter the bed type charking appliance (1) to conduct two-stage charking. The invention discloses the destructive distillation device used for achieving the destructive distillation method for the fluidized bed of the oil shale. The destructive distillation method and the device for the fluidized bed of the oil shale are mainly used for destructive distillation processing of various granularity oil shale raw materials.

The invention discloses an over-temperature protection method for a power device in an electromagnetic heating system, which comprises the following steps: S1, detecting the current working condition of the electromagnetic heating system; S2, determining the overtemperature protection method according to the current working condition of the electromagnetic heating system A curve corresponding to the current working condition; and S3, performing over-temperature protection on the power device according to the curve corresponding to the current working condition. The over-temperature protection method can predict the temperature of the power device, and can perform over-temperature protection on the power device in advance to avoid over-temperature damage of the power device. The invention also discloses an over-temperature protection device for power devices in the electromagnetic heating system and an electromagnetic heating system with the over-temperature protection device.

The invention discloses a method and a device for fluid-bed destructive distillation of oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale solve the problems caused by high coal burning load borne by a coal burning device in an existing destructive distillation technique and also solve the problem of low extraction rate of shale oil. The method for the fluid-bed destructive distillation of the oil shale comprises the steps that a section of destructive distillation reaction is carried out on oil shale raw materials (27) and high-temperature heat carriers after the oil shale raw materials (27) and the high-temperature heat carriers are mixed in a lifting pipe destructive distillation reactor (24); the oil shale raw materials enter a bed type destructive distillation reactor (21) for a second section of destructive distillation reaction after the first section destructive distillation reaction is carried out on the oil shale raw materials, and then mixed carbocoal is formed and enters a pipe type coal burning device (14) after oil gas contained in the mixed carbocoal is extracted in a steaming mode; and a section of coal burning is carried out on the mixed carbocoal which enters the pipe type coal burning device; and the mixed carbocoal enters a bed type coal burning device (5) for a second section of coal burning after the first section coal burning is carried out on the mixed carbocoal. The invention discloses the device for the fluid-bed destructive distillation of the oil shale, wherein the device for the fluid-bed destructive distillation of the oil shale is used for realizing the method for the fluid-bed destructive distillation of the oil shale. The method and the device for the fluid-bed destructive distillation of the oil shale are mainly used for destructive distillation processing of various kinds of powder oil shale raw materials.

The invention relates to the field of microwave equipment, in particular to a magnetron temperature adjustment method and its device, a controller, a frequency conversion power supply, a magnetron temperature adjustment system and microwave equipment. Wherein, the magnetron temperature adjustment method includes: determining the anode current flowing through the magnetron and the output power of the variable frequency power supply, the output power is used to drive the magnetron to work; according to the anode current of the magnetron and the output power of the variable frequency power supply Power, calculate the anode voltage of the magnetron; adjust the output power of the variable frequency power supply according to the anode voltage of the magnetron. Therefore, it can directly obtain the anode current of the magnetron so as to accurately reflect the anode temperature of the magnetron, and adjust the anode temperature of the magnetron accurately and reliably by adjusting the output power of the variable frequency power supply to avoid overheating of the magnetron damage.

The invention is an electric auto driving motor cooling fun protector, according to the working current range, determining if the cooling fan works normally: if it is abnormal, send trouble information to an motor controller, which can stop the driving motor working or reduce output power of the driving motor, thus preventing overtemperature damage, even destruction to the driving motor caused by the abnormal working of the cooling fan, and the invention can be used not only in protecting electric auto driving motor but also in protecting other driving motors in need of cooling fans.

The invention discloses an energy storage type new energy battery protection system used for an intelligent energy net and a method of the energy storage type new energy battery protection system. The system consists of a battery pack, a shell, a polyhydric alcohol phase change material, a fatty acid phase change material capsule and a fiber material fin. The solid-phase polyhydric alcohol phase change material is used to absorb heat and melt, so as to restrain the sharp temperature increment of the battery pack within a short time, the solidification of a liquid phase fatty acid phase change material in the fatty acid phase change material capsule is used to preserve heat of the battery pack, and the characteristic that a heat conductivity coefficient of the fiber material fin is increased along with temperature increment is used to further realize functions of improving heat dissipation under high temperature and enhancing freeze prevention under low temperature for the battery pack; the polyhydric alcohol phase change material absorbs heat, stores energy and supplies the heat to users, and is energy-saving, economical and environmentally friendly; the system is high in adaptation, and can be used in an extreme environment with great temperature difference change; the phase change materials are good in repeatability, and the service life is long.

The invention discloses a fluidized bed combustion furnace and a combustion method, comprising a fluidized combustion zone and a rotary drying layer combustion zone; The rotary drying layer combustion area is used to realize the rotary drying layer combustion of materials; the fluidized combustion area is used for fluidized combustion of the materials that have passed through the rotary drying layer combustion area. The material enters the combustion furnace through the material inlet of the fluidized bed, and is first piled up in the rotary drying layer combustion zone for rotation, drying and partial layered combustion. Fluidized combustion in the combustion zone. The technical solution of the present invention can solve the problem that the existing fluidized bed combustion technology has high requirements on the particle size of the material and needs to be crushed first, the energy consumption is large and the residence time of the fuel in the furnace is too short, which causes the large particle size material and high humidity material to be unable to fully burn The problem.