35results about How to "Safe and reliable long-term operation" patented technology

The invention relates to a metal hydride hydrogen storage device and a preparation method thereof; wherein, the device comprises a shell which is filled in superposed hydrogen-storage material sheet which consists of a spumescent metal substrate which absorbs no hydrogen and mixture of hydrogen-storage alloy powder and adhesive which are filled in the gap of the spumescent metal substrate; the hydrogen-storage material sheet is provided with a central hole which is coincident to the central hole of the shell head and is connected with the central hole of the head by a filter sheet which is embedded in the head; the central hole of the head is fixed with a joint pipe which is provided with a valve. The hydrogen storage device can effectively improve the heat transmission performance of the hydrogen storage alloy and hydride powder, effectively prevents the flowing and accumulating of the hydrogen-storage alloy and the hydride, solves the hydrogen absorption expansion problem of the hydrogen storage alloy powder, thus having the advantages of high-efficiency running, safety and reliability and being suitable for the production of meta hydride hydrogen-storage devices applied to various sites.

The invention discloses a forced water circulation high-capacity hot water boiler of a circulating fluidized bed, which relates to a hot water boiler of a fluidized bed, and aims to ensure water circulation safety and power failure protection of a high-capacity hot water boiler of a circulating fluidized bed. A water supply distribution header is connected with lower coal economizers; the lower coal economizers, middle coal economizers and upper coal economizers are sequentially connected with one another; the upper coal economizers are connected with a coal economizer upper header; the coal economizer upper header is connected with a collection water bag by a coal economizer coating pipe; the collection water bag is connected with water cooling wall lower headers by a descending pipe; the water cooling wall lower headers are connected with a hearth water cooling wall; the hearth water cooling wall is connected with water cooling wall upper headers; the water cooling wall upper headers are connected with a boiler cylinder by extraction pipes; the water supply distribution header is connected with a separator water cooling sleeve by a water cooling sleeve water intake pipe; the separator water cooling sleeve is connected with the boiler cylinder by a water cooling sleeve water outlet pipe; the boiler cylinder is connected with the water cooling wall lower headers by communicating pipes, and is connected with the water supply distribution header by a power failure water supply pipe. The forced water circulation high-capacity hot water boiler provided by the invention is applied to large concentrated heat supply and warming.

The invention relates to a dust remover, and concretely relates to a filter bag dust remover with a self-circulating ash removal device. The dust remover comprises a base support, an airflow uniform distribution and flow guiding device, a filter bag chamber, an air purifying chamber, a filtering assembly, a self-circulating ash removal system, an ash bucket, an electric control system, a heat insulation layer, a platform, a stair and a pre-coating system; an air inlet is provided with the airflow uniform distribution and flow guiding device, forward and upward airflow channels are arranged in a bag zone, filter bags are arranged in a rectangular chamber in groups, the mouths of a plurality of the filter bags are compressed through bolts through a steel plate to make the filter bags be firmly clamped in the hole of a tube sheet, the tube sheet is provided with a filter bag hole, a hole plate is smooth without burrs, and the filter bags form a double sealing structure at the upper portion of the tube sheet and in the hole of the tube sheet. The dust remover adopting low pressure air generated by a centrifuge fan to purge in order to close and leakage-free ash removal has the advantages of blowing effect guaranteeing, no light damages to the filter bags, and safe and reliable running, and adopts programmed control to purge row by row in sequence in order to realize the ash removal purpose.

A process for destroying ozone gas contained in tail gas includes such steps as making the tail gas containing ozone flow through water retaining plate for removing water, stage-one catalytic decomposing by using MnO2 as catalyst, and stage-two catalytic decomposing by using activated carbon as catalyst to decrease the content of ozone to 0.1 ppm or less. Its apparatus is also disclosed.

The invention discloses a moisture-proof and condensation-proof control method for an indoor station. The moisture-proof and condensation-proof control method comprises the steps of selecting an indoor temperature and humidity control mode, and configuring an indoor temperature and humidity regulation-control range according to a season and the temperature and humidity control mode; acquiring indoor temperature and humidity, outdoor temperature and humidity, a water logging opening-closing state and an access opening-closing state of the indoor station; comparing the acquired outdoor temperature and humidity with a local air dew point hygrometer, looking up a dew point temperature, comparing the acquired indoor temperature and humidity with the dew point temperature, and recording a comparison result every time; and starting a dehumidifier to dehumidify while judging that the indoor temperature achieves the dew point temperature or judging that the indoor temperature has a trend of approaching to the dew point temperature by virtue of recent multiple comparison results, wherein an air conditioner automatically heats or refrigerates according to the season to break the dew point temperature, thereby preventing indoor condensation. The moisture-proof and condensation-proof control method disclosed by the invention is moisture-proof and condensation-proof, and capable of furthest saving energy, guaranteeing safe and normal long-time running of electrical equipment, and lowering a maintenance cost.

The invention relates to a centrifugal impeller optimal design method for preventing vibration localization from happening. The method comprises the following steps of: 1, carrying out static strength verification; 2, drawing a vibration mode graph of a plurality of orders of modals in front of an impeller; 3, analyzing a forbidden band and a passband of the impeller; 4, determining the excitation frequency of an excitation source; 5, judging whether the excitation source drops in the forbidden band or is close to the forbidden band; and 6, optimizing the impeller structure and increasing the isolation margin of the forbidden band of the impeller so as to eliminate influence of detuning. According to the centrifugal impeller optimal design method disclosed by the invention, the vibration localization problem of the impeller in the operation process can be effectively solved, the injuries caused by vibration localization and the failure occurrence rate of the impeller in the operation process are reduced, and a centrifugal impeller unit can be ensured to operate safely and reliably for a long time.

The invention relates to a multi-cavity pipe for hole opening in a partition wall for flexible transmission. The multi-cavity pipe comprises a pipe body and is characterized in that at least two channel cavities distributed along the axis of the pipe body are formed in the pipe body, the channel cavities are separated from each other through the partition wall. Each channel cavity comprises a transmission cavity and at least one perfusion cavity, wherein the at least one perfusion cavity is communicated with the transmission cavity through at least one hole formed in the partition wall, a connecting driving flexible shaft which is used for transmitting the torque generated by a power source to a rotating functional piece penetrates through the transmission cavity, the power source is located at the near end of the connecting driving flexible shaft, and the rotating functional piece is located at the far end of the driving flexible shaft. The temperature rise inside a catheter can be effectively controlled, and the risk that particles and excessive perfusion fluid enter the human body and increase the burden of organs is reduced, so that the safe and effective long-term operation ofthe catheter is achieved.

The invention discloses a novel high-pressure pipeline rotating compensator, and belongs to the technical field of pipeline supporting piping, in particular structures applied to heat pipeline compensating devices. The novel high-pressure pipeline rotating compensator comprises an outer connecting pipe B and an outer connecting pipe A which are inserted in each other; an outer convex ring is arranged on the outer connecting pipe A; an inner bearing platform and a gap bridge are arranged on the outer connecting pipe B; an inner boss is arranged on the gap bridge; a sealing component B, a sealing component A and a sealing seat are sequentially arranged outside along the outer connecting pipe A. According to the technical scheme, the novel high-pressure pipeline rotating compensator has the advantages of being high in precision, small in damage due to pressing, high in bending resistance and bearing capacity, free of limitation from medium flowing direction, outstanding in sealing performance, safe and reliable in long-term running of pipelines, and convenient to maintain.

The invention provides a two-stage and two-discharge graphite pump capable of preventing an impeller from being damaged. All flow passage components contacted with a medium in a pump are made of graphite; an electric motor transmits power to the impeller through a shaft joint, a long shaft,and a short shaft; the pump comprises a pump cover, a pump body, the impeller, a bracket and a rotary shaft; the pump adopts two-stage impellers which are a first-stage impeller and a second-stage impeller; the first-stage impeller and the second-stage impeller are orderly limited and installed on the same one rotary shaft; positive and opposite guide vanes are mounted between the two-stage impellers, and a pumping chamber of the second-stage impeller adopts a symmetrical two-discharge structure. After adopting the two-stage impeller, the torsion and the centrifugal force impacted on one stage of impeller are less than the torsion and the centrifugal force when the single-grade impeller is adopted under the condition of reaching the same lift and the flow rate; and after adopting the pumping chamber of the two-discharge symmetrical structure, the radial force of the impeller caused by the fluid can counteract mutually, so that the damage of the impellers can be prevented.

The invention discloses an outdoor primary and secondary fusion isolation knife built-in intelligent post switch, which comprises an aluminum alloy base and an aluminum alloy housing matched with thealuminum alloy base, The aluminum alloy housing is fastened on the aluminum alloy base to form an outer enclosure box, a plurality of isolation knife main circuit driving structures are arranged in the outer enclosure box, a left current sensor is arranged at the inner end of the left outlet terminal, and a right current sensor is arranged at the inner end of the right outlet terminal; The inner end of the outer enclosure is provided with a hollow chamber, A power operating mechanism is installed in the hollow chamber, The power operation mechanism comprises a front panel and a rear panel, a component mounting chamber is formed between the front panel and the rear panel, and an isolation power mechanism for controlling the separation knife to separate and close, a circuit breaker power mechanism for controlling the circuit breaker to be on and off, and a circuit breaker closing energy storage mechanism for circuit breaker to be on and off for energy storage are installed in the component mounting chamber; The whole power operation mechanism can provide power source to the circuit breaker and the isolating knife separately or simultaneously.

The embodiment of the invention provides an LED display screen and a control system thereof, and belongs to the technical field of LED display screens. The control system comprises a system control circuit, an LVDS interface bus driver, an LVDS bus receiver and a light bar control circuit; the system control circuit outputs TTL / COMS signals to the LVDS interface bus driver; the LVDS interface busdriver converts the TTL / COMS signal into a low-voltage differential signal, and transmits the low-voltage differential signal to the LVDS bus receiver; and the LVDS bus receiver converts the low-voltage differential signal into a TTL / COMS signal, and transmits the TTL / COMS signal to the light bar control circuit. By the adoption of the system, high-bandwidth long-distance transmission of control signals is achieved, the transmission distance can reach hundreds of meters, when the system is used for outdoor curtain wall and landscape lighting, the system control box can be easily placed indoorsto be installed, long-term operation is safer and more reliable, and indoor maintenance is safer and more convenient.

The invention relates to a slag dredger slag water system based on two-stage circulation and sedimentation and used for a supercritical unit. Slag water circulates sequentially through industrial water replenishment, a water seal tank, a slag dredger overflow water tank, a first clarification tank, a second clarification tank, a sewage pump and a slag dredger. The modified slag water system operates quite stably, and equipment operates normally. It is learnt from the operating condition of the optimized slag water system that industrial water replenishment is adopted by the optimized slag water system for water replenishment of the water seal tank, the water level of the water seal tank can be maintained, and the requirement for chain flushing carbon-containing pellet water can be met. The temperatures of guide wheels in the slag dredger, a ship body and a slag well are all within the normal working range. The water level of the water seal tank is maintained through industrial water replenishment so that slag accumulation in the water seal tank can be effectively prevented. Calculation shows that the total spare part fee saved by each slag water system is about 100 thousand yuan per year, and the total auxiliary power saved by each slag water system is 331.8 thousand kilowatts per year, namely the fee is saved by about 1.5 million yuan.

The invention provides a compressor. The compressor comprises a casing, an oil pump and a guide isolation assembly, wherein an oil sump for containing lubricating oil is arranged at the bottom part of the casing; the oil pump is arranged in the casing; the guide isolation assembly is arranged at the bottom part of the casing, and is positioned under the oil pump; the guide isolation assembly comprises an isolation part, the isolation part comprises at least two isolation parts of which the cross sections are of sealed structures, the at least two isolation parts are sheathed by layers, and an isolation groove is formed between the adjacent isolation parts; the oil pump is used for sucking the lubricating oil, and the isolation parts are used for isolating the impurities of the lubricating oil into the isolation groove. The compressor has the advantages that the guide isolation assembly is used for effectively blocking most of impurities from entering an oil path system, the running risk of the compressor is effectively decreased, the abrasion of the moving parts of the compressor due to impurities is avoided, the long-time running of the compressor is safer and more reliable, and the reliability of the compressor is improved. The invention also provides a refrigerator.

Provided is an assembly method of a vacuum drainage system for a mine shaft. The vacuum drainage system is composed of a cement pit, a perforated strainer, a support, an inductor, a water level alarm, control valves, a vacuum water pumping pipe, a vacuum box, a top board, vacuum pumps, air suction ports, a liquid level indicator, a vacuometer, a water inlet bent pipe, a drainage pipe and a controller. The support is installed at the bottom of the cement pit in the mine shaft, the vacuum water pumping pipe is installed on the support, and the perforated strainer is installed above the cement pit; the vacuum box is installed on the ground, the top board is installed above the vacuum box, and the top board and the vacuum box are installed oppositely; the vacuum pumps are installed on two sides of the upper side of the top board, and the controller is installed on one side of the vacuum box. The assembly method resolves the technical problem that the suction stroke of a water pump in an existing drainage device is insufficient, can achieve complete drainage of accumulated water in an underground water bin of a deep mine, reduces consumption of electric energy, improves the utilization rate of the water pump, reduces maintenance costs of the water pump, guarantees safety in production, and effectively resolves the problems that the suction stroke of the water pump is limited and water leakage accidents and water inrush accidents occur.

The invention discloses an impeller optimization design method for preventing a targeted energy transfer phenomenon during vibration of an impeller. On the basis of traditional static strength analysis and design, dynamic characteristics of the impeller under the detuned ideal condition are analyzed, the forbidden band and the pass band of the impeller are recognized, then all frequency components of an excitation source borne by the impeller are listed, whether the frequency components fall into the forbidden band is judged, an impeller mechanism is required to be amended and optimized under the condition that the frequency components fall into the forbidden band, and thus the targeted energy migration phenomenon is prevented during vibration of the impeller. The method has the guiding significance in design and manufacturing of a new generation of centrifugal impellers, the problem of local large-amplitude vibration in the running process of the impeller can be effectively solved, damage caused by vibration can be reduced, and the failure rate in the running process of the impeller can be reduced, so that a centrifugal impeller unit can run safely and reliably for a long time. The safety and the high efficiency of the impeller designed with the method can be improved to a large extent.

A catalyst that contains molybdenum (Mo) as an essential element and includes other catalytically active ingredients, in which the constituent elements satisfy relationship (cI): 0.44<=Sigma{(MoIE-XIE)*XC}<=1.53. In relationship (cI), XIE represents the first ionization energy (eV) of each of the elements other than molybdenum, MoIE represents the first ionization energy (eV) of molybdenum, and XCrepresents the atomic proportion of the element relative to the molybdenum, the proportion of which is taken as 12. In cases when (MoIE-XIE) is smaller than 0, the value is regarded as 0 in the calculation.

The invention relates to a real-time online measuring device and method, in particular to a two-dimensional surface heat flux density real-time online measuring device and method. According to the technical scheme provided by the invention, the two-dimensional surface heat flux density real-time online measuring device comprises a base body and a base body temperature sensor capable of monitoringthe temperatures of multiple points of the base body, the base body temperature sensor is electrically connected with a measurement control calculation device through a data acquisition board card, and the measurement control calculation device can synchronously acquire the temperatures of multiple points of the base body monitored by the base body temperature sensor through the data acquisition board card; and the measurement control calculation device calculates and determines the surface multi-point heat flux density of the base body by adopting a two-dimensional filtering method after obtaining the multi-point temperature values of the base body. The online monitoring and measuring problems of the surface heat flux density of thermal conversion equipment such as boilers and internal combustion engines can be solved, and therefore optimization and development of related industrial processes are promoted.

A filter bag type dust collector with a self-circulation dust removal device, relating to a dust collector, the dust collector includes a basic support, an air flow uniform distribution and flow guide device, a filter bag room, a clean air room, a filter assembly, a self-circulation Ash cleaning system, ash hopper, electrical control system, also includes insulation layer, platform, stairs, pre-coating system; the air inlet is equipped with airflow uniform distribution and flow guide devices, and the bag area is equipped with forward and upward airflow channels, The filter bags are arranged in groups in a rectangular room, and several filter bag openings are pressed together with a steel plate through bolts, so that the filter bags are firmly stuck in the hole of the flower plate. The filter bag holes are made on the flower plate, and the orifice plate is smooth without burrs. , The filter bag forms a double sealing structure on the upper part of the flower plate and the inner edge of the flower plate hole. The dust collector adopts the low-pressure air blowing generated by the centrifugal fan, and the airtight and non-leakage dust removal can not only ensure the blowing effect, but also prevent the filter bag from being slightly damaged, and the operation is safe and reliable. , to achieve the purpose of dust removal.

The invention discloses a forced water circulation high-capacity hot water boiler of a circulating fluidized bed, which relates to a hot water boiler of a fluidized bed, and aims to ensure water circulation safety and power failure protection of a high-capacity hot water boiler of a circulating fluidized bed. A water supply distribution header is connected with lower coal economizers; the lower coal economizers, middle coal economizers and upper coal economizers are sequentially connected with one another; the upper coal economizers are connected with a coal economizer upper header; the coal economizer upper header is connected with a collection water bag by a coal economizer coating pipe; the collection water bag is connected with water cooling wall lower headers by a descending pipe; the water cooling wall lower headers are connected with a hearth water cooling wall; the hearth water cooling wall is connected with water cooling wall upper headers; the water cooling wall upper headers are connected with a boiler cylinder by extraction pipes; the water supply distribution header is connected with a separator water cooling sleeve by a water cooling sleeve water intake pipe; the separator water cooling sleeve is connected with the boiler cylinder by a water cooling sleeve water outlet pipe; the boiler cylinder is connected with the water cooling wall lower headers by communicating pipes, and is connected with the water supply distribution header by a power failure water supply pipe. The forced water circulation high-capacity hot water boiler provided by the invention is applied to large concentrated heat supply and warming.

The invention discloses a fault switching system and method for a protection device of a flexible DC converter valve valve control system, and relates to the field of flexible DC power transmission. The valve control system of the converter valve includes a set of independent "two out of three" protection devices for the flexible DC converter valve. A board, the outlet board is used to output protection action signals. The present invention utilizes the failover system to perform reasonable switchover according to different failure conditions of the protection device, and adds the function of manual intervention on the basis of prioritizing the independent judgment of the valve control system, so as to ensure the safe and reliable operation of the valve control system.

The invention relates to an intelligent monitoring terminal for station environment and harmful gas leakage, which comprises an RS485 bus interface connected with a sensor, the output end of the RS485 bus interface is in data connection with an actuator through a monitoring terminal, and the monitoring terminal comprises: a UPS module which is used for automatically detecting the working state of the power supply module, wherein when the power supply module is normal, the UPS is in a backup state, and meanwhile, charging management is carried out on a battery in the machine, and when the power supply module is abnormal, the UPS immediately supplies the electric energy of a battery in the UPS to the intelligent terminal and provides 24V DC power supply to the intelligent terminal directly, so that the load is maintained to work normally; and a main control module which is used for completing acquisition and processing of data analog quantity and switching quantity, operation and judgment of various control criteria, and then generating corresponding control outlets, sending signals, performing communication transmission and the like. The intelligent monitoring terminal has the beneficial effects that coordination and switching of execution parameters are effectively controlled, condensation can be effectively controlled, energy can be saved to the maximum extent, and safe and normal long-term operation of power equipment is ensured.

A main circuit drive structure for an outdoor column switch is disclosed, the structure includes a sealed insulation box, a left outlet port for a left outlet line is arrange at that left end of the sealed insulation box, A right outlet for a right outlet is arrange at that right end of the sealed insulation box, A left conductive part is arranged in that left outlet port, A right conductive partis arranged in the right outlet port, an isolating knife is arranged between the left outlet port and the right outlet port, a knife switch contact is electrically connected with the right conductivepart, an arc extinguishing chamber is fixed in the sealed insulation box, the static contact of the arc extinguishing chamber is electrically connected with the left conductive part, and the moving contact of the arc extinguishing chamber is electrically connected with the rotary knife switch through a soft conductive sheet; The insulation distance in the structure is shortened and the electric field strength is uniformly distributed, which is favorable for the whole miniaturization design and avoids the whole naked leakage out of the environment, and is favorable for the safe and reliable long-term operation in the power network, by placing the isolation knife, arc extinguishing chamber and other main loop drive structures inside the sealed insulation box.

The invention discloses a self-supporting intelligent medium-voltage power cable for building hoisting and a manufacturing method thereof. The cable consists of a cable core, a low-smoke, halogen-free wrapping tight belt, and a low-smoke, halogen-free, and weather-resistant outer sheath from the inside to the outside. ; The cable core includes three insulated wire cores, intelligent control on-line monitoring components and low-smoke and halogen-free filling; each insulated wire core is a copper-magnesium alloy conductor, a composite insulation layer and a copper tape shielding layer from the inside to the outside; The composite insulating layer is a three-layer cross-linked co-extruded conductor semi-conductive shielding layer, a cross-linked polyethylene insulating layer and an insulating semi-conductive shielding layer; the magnesium content of the copper-magnesium alloy conductor is 0.01%-0.1%. Conductor resistivity ≥ 95% IACS, tensile strength not less than 390MPa. The copper-magnesium alloy conductor of the present invention has a tensile strength of 390 MPa, can withstand 300±5°C, softens at a high temperature for 2 hours, has a strength retention rate of 95%, and does not weaken the tensile strength at a long-term working temperature of 150°C. The conductor is a regular stranded non-tight conductor Pressed round conductors can bear load for a long time.

The invention relates to a subway energy feedback device draught fan speed regulation method based on power prediction. The subway energy feedback device draught fan speed regulation method based on the power prediction includes following steps: step 1, obtaining reference value of current corresponding to predicted power according to current corresponding to the maximum power value of feedback peak power, collected on an adjacent station platform in the last period, of a subway energy feedback device, and performing compensation and regulation on the reference value of the current corresponding to the predicted power according to output current, collected by a current station platform in real time, of the subway energy feedback device; and step 2, beginning to start a draught fan, starting the draught fan by adopting rotation speed corresponding to the predicted power current reference value, then compensating and regulating the reference current, completing regulation until the subway energy feedback device outputs the maximum peak current, keeping stable output of the rotation speed of the draught fan, setting temperature to be lower than preset quit threshold value, regulatingthe rotation speed of the draught fan, and reducing the rotation speed of the draught fan until the draught fan rotates at the low speed or stops running. The subway energy feedback device draught fanspeed regulation method is simple to operate in the whole process, does not need to frequently regulate the draught fan, and guarantees that temperature variation difference of power devices is reduced under the working condition that subway braking has strong periodicity and large power sudden change.

The invention relates to a real-time online measuring device and method, in particular to a two-dimensional surface heat flux density real-time online measuring device and method. According to the technical scheme provided by the invention, the two-dimensional surface heat flux density real-time online measuring device comprises a base body and a base body temperature sensor capable of monitoringthe temperatures of multiple points of the base body, the base body temperature sensor is electrically connected with a measurement control calculation device through a data acquisition board card, and the measurement control calculation device can synchronously acquire the temperatures of multiple points of the base body monitored by the base body temperature sensor through the data acquisition board card; and the measurement control calculation device calculates and determines the surface multi-point heat flux density of the base body by adopting a two-dimensional filtering method after obtaining the multi-point temperature values of the base body. The online monitoring and measuring problems of the surface heat flux density of thermal conversion equipment such as boilers and internal combustion engines can be solved, and therefore optimization and development of related industrial processes are promoted.

The invention discloses a novel high-pressure pipeline rotating compensator, and belongs to the technical field of pipeline supporting piping, in particular structures applied to heat pipeline compensating devices. The novel high-pressure pipeline rotating compensator comprises an outer connecting pipe B and an outer connecting pipe A which are inserted in each other; an outer convex ring is arranged on the outer connecting pipe A; an inner bearing platform and a gap bridge are arranged on the outer connecting pipe B; an inner boss is arranged on the gap bridge; a sealing component B, a sealing component A and a sealing seat are sequentially arranged outside along the outer connecting pipe A. According to the technical scheme, the novel high-pressure pipeline rotating compensator has the advantages of being high in precision, small in damage due to pressing, high in bending resistance and bearing capacity, free of limitation from medium flowing direction, outstanding in sealing performance, safe and reliable in long-term running of pipelines, and convenient to maintain.

The invention discloses a steel ladle positioning sensor bracket and a steel ladle capable of being positioned. The steel ladle positioning sensor bracket comprises the steel ladle and a radio frequency sensor, wherein the radio frequency sensor is mounted on the side wall of the steel ladle through a bracket, the bracket comprises a mounting frame and a wireless signal sensor seal box mounting base, the mounting frame is made from steel and fixed with the side wall of the steel ladle, a heat isolating plate is arranged between the mounting frame and the mounting base, a protection cover tilted downwards is arranged above the heat isolating plate and the mounting base, the heat isolating plate is a heat isolating plate bent with at least two planes, one plane is parallel with the longitudinal direction of the mounting frame and used for isolating the horizontal heat radiation of the steel ladle, and the other plane is on the lower side of the mounting base and is used for isolating heat radiation from the lower side of the steel ladle. The structure is simple. An insulating plate of which the thickness is not smaller than 5mm is made by pressing mica powder, the structural shape of the heat isolating plate well solves the heat isolating and heat dissipating problem of the sensor, and practice shows that the sensor can safely and reliably run for long time.