38results about How to "Automatic temperature monitoring" patented technology

The invention discloses an intelligent cooling box-type substation. The substation comprises shell of inner layer box, shell of outer layer box and head cover, wherein a cooling interlayer cavity is set between the shell of inner layer box and the shell of outer layer box, the cooling coil is set in the cooling interlayer cavity, and liquid inlet and liquid outlet are set on the cooling coil; the substation also comprises a cooling water tank connected with the tap water pipeline, the liquid inlet is connected with the liquid inlet pump connecting with the cooling water tank, the liquid outlet is connected with the liquid return pipe connecting with the cooling water tank, and the liquid return valve is set on the liquid return pipe; the liquid outlet is also connected with the liquid drain pipe, and a liquid drain valve is set on the liquid drain pipe; the substation also comprises in-box temperature detecting sensor and return water temperature detecting sensor, the signal output ends of the in-box temperature detecting sensor and return water temperature detecting sensor are connected with the intelligent controller, which is connected with the liquid inlet pump, liquid return valve, liquid drain valve and water replenishing valve. The invention can automatically monitor the temperature inside of the substation box body, and automatically drop the temperature for cooling with a good cooling effect.

The invention relates to the technical field of automatic equipment, in particular to a multifunctional plant maintaining device. The multifunctional plant maintaining device comprises a plant maintaining device main body, an air treatment system and an intelligent control system. Two or more than two melon flap-like foldable transparent insulation covers (4) are provided; the upper ends of the insulation covers (4) are mounted inside an upper rail (3), and the lower ends of the insulation covers (4) are mounted inside a lower rail (6); through forward rotation of an insulation cover driving motor (18), a transmission component (8) is driven to drive the foldable transparent insulation covers (4) to move along the upper rail (3) and the lower rail (6), so that the foldable transparent insulation covers (4) are sequentially unfolded to form a closed transparent insulation cover for insulating heat for a plant; through a heating device, the internal space of the closed transparent insulation cover is heated, so that the plant is not affected by external low temperature; meanwhile, the multifunctional plant maintaining device can also automatically water the plant and supplement light, so that normal growth of the plant is guaranteed; the multifunctional plant maintaining device is simple in structure, economical and practical; the intelligence and the multifunctionality of the plant maintaining device are achieved.

The invention concretely relates to reinjection technique of geothermal well of geothermal resource exploitation and utilization engineering can be used in geothermy tertiary sandstone reinjection collar system mainly use two-staged coarse filter group4 reinjection system linked in series of coarse filter group and secondary filter group with parallel connection, pressurizing reinjection pump and enforced exhaust tank geothermic fluid flows into the first stage of coarse filter group with filtration accuracy of 50 to 80mum, then the second stage of secondary filter group with filtration accuracy of 3to5mum, the filter element material is the third generation polyethylene sintered filter element or filtration bag, after two filtration stages water quality can be guaranteed basically. The invention can prevent air resistance caused by physical, microbe, chemical factors, increase microbe higher than 30%. The system is installed and adjusted conveniently, maintained simple, its monitoring method complete, although it is aimed at sandstone formation, it can also be adopted for other layer like and can exploit and utilize tertiary geothermal resource reasonably.

The invention relates to plant-atmosphere gas exchange determination technology, in particular to an open box system for determining whole tree gas exchange, which solves the problems that the prior art has no mature observation system with reliable use, simple and convenient operation and commercialization directly applied to single plant level gas exchange observation and the like. The system comprises lifting equipment, an air buffer box, a box body, a base, a piping system and a gas analyzer, wherein the box body used for closing determined tree is connected with the lifting equipment and arranged on the base; the air buffer box is communicated with the box body; and a sensor of the gas analyzer is communicated with the box body through the piping system. The system can realize simultaneous observation of gas concentration of CO2 and H2O of the whole tree, automatically acquire and store data, and automatically monitor air temperature of the box body, relative air humidity, photosynthetic active radiation, atmospheric pressure and other environment factors, and is favorable for research and application of tree gas exchange.

The invention concretely relates to reinjection technique of geothermal well of geothermal resource exploitation and utilization engineering can be used in geothermy tertiary sandstone reinjection collar system mainly use two-staged coarse filter group4 reinjection system linked in series of coarse filter group and secondary filter group with parallel connection, pressurizing reinjection pump and enforced exhaust tank geothermic fluid flows into the first stage of coarse filter group with filtration accuracy of 50 to 80mum, then the second stage of secondary filter group with filtration accuracy of 3to5mum, the filter element material is the third generation polyethylene sintered filter element or filtration bag, after two filtration stages water quality can be guaranteed basically. The invention can prevent air resistance caused by physical, microbe, chemical factors, increase microbe higher than 30%. The system is installed and adjusted conveniently, maintained simple, its monitoring method complete, although it is aimed at sandstone formation, it can also be adopted for other layer like and can exploit and utilize tertiary geothermal resource reasonably.

The invention discloses an air-cooling radiation LED (light emitting diode) lamp, which comprises an LED lamp tube and a power supply. The lamp is characterized by comprising a protective controller and an air-cooling radiator, wherein the protective controller consists of a singlechip circuit, a temperature sensor, an electronic switching circuit and a voltage conversion circuit, and the temperature sensor and the electronic switching circuit are respectively connected with the singlechip circuit; the voltage conversion circuit is connected with the power supply, and respectively connected with the singlechip circuit, the temperature sensor and the electronic switching circuit; the air-cooling radiator consists of a fan and a radiator, and the fan is connected with the power supply; and the LED lamp tube is fixedly connected to the radiator, and is connected with the electronic switching circuit of the protective controller and the power supply. In the use process, the air-cooling radiation LED lamp can automatically detect the temperature of the radiator, and performs an automatic overheat protecting function to the LED lamp tube, so that the problems that the lamp has a large radiator and high cost by adopting a natural radiation mode, and poor wind and shaking resistance caused by overweight dead weight of the lamp can be solved.

The invention belongs to the technical field of solid waste disposal, and particularly relates to a microorganism solid waste disposal system. The microorganism solid waste disposal system comprises a tank body, and a mixing device, an air device, a pressure control device, a temperature control device, a humidity control and water supplement device and a measurement and control device which are connected with the tank body; a tank cap of the tank body is provided with an inoculating port, a feed port, a sample port and a liquid port; a PH electrode is arranged in the tank body; the mixing device consists of a motor, a mixing shaft and mixing paddles; the air device comprises an air inlet pipe and an air outlet pipe; the pressure control device is used for automatically detecting and controlling pressure of the tank body online; the temperature control device consists of a fuzzy PID intelligent controller and an electric heating and temperature electrode; the humidity control and water supplement device comprises a secondary filter and a water supplement pipeline; and the measurement and control device is connected with the mixing device, the air device, the pressure control device, the temperature control device, the humidity control and water supplement device and the PH electrode. The microorganism solid waste disposal system is applicable to a microorganism solid waste disposal experiment in a controlled ecological life support system.

The invention discloses a constant-temperature illuminating lamp, which belongs to the field of constant-temperature devices. The constant-temperature illuminating lamp comprises a lamp holder, and an illuminating lamp tube, an infrared radiation heating bulb and a temperature sensor which are arranged on the lamp holder, wherein a single-chip microcomputer control circuit is arranged inside the lamp holder; and the temperature sensor is used for controlling the illuminating lamp tube and the infrared radiation heating bulb to work respectively through the control circuit. Automatic constant-temperature control is realized via the sensor; and meanwhile, the constant-temperature illuminating lamp has the advantages of illuminating function, simple structural design and high practicability.

The invention relates to a chemical cooling device and particularly relates to an automatic cooling and packaging device. The automatic cooling and packaging device comprises a box body; a feeding hole is formed in one side of the box body; a discharging hole is formed in the bottom of the other side of the box body; the top of the box body is a ventilating top plate; a conveying belt is mounted at the feeding hole; one end of the conveying belt is outside the box body and is used for receiving a material; the other end of the conveying belt is positioned above the discharging hole; a scraping blade is arranged at the feeding hole and is mounted inside the box body through a lifting device; a cooling fan is also mounted above the conveying belt; a bevel is arranged between the lower end of the feeding hole and the discharging hole; one section of the discharging hole is a low end; a backup electric cooling fan is arranged above the bevel; a backup sensor is mounted below the backup electric cooling fan; a gate is arranged on the bevel; the lower portion of the discharging hole is connected with a discharged material weighing device; a packaging machine is arranged below the discharged material weighing device. The automatic cooling and packaging device has the advantages of improving the cooling efficiency by spreading the material, and realizing high efficiency by automatically monitoring the temperature of the material and regulating the cooling device for cooling; the material can be directly packaged without being taken down from a production line.

A low temperature based automatic emptier for a solar water heater is characterized in that a valve on an inflow pipe (2) of the solar water heater (1) and valves on thermal collector tubes (3) are provided with an electric controller (4) and a temperature detector (5); when the ambient temperature is lower than a set value, the electric controller (4) controls and closes the inflow pipe and opens the valves on the thermal collector pipes, water in the thermal collector pipes is emptied to prevent freeze-cracking; a remote transmission module (6) sends a reminder message to a remote number when an emptying mechanism is started; water pressure detectors (7) on the thermal collector tubes (3) determine that the specific pipe cracks when the water pressure is unbalanced; a prompting device sends out a prompt message when the thermal collector tubes crack. The low temperature based automatic emptier has the advantages that the ambient temperature can be automatically monitored, and the thermal collector tubes can be preventively emptied in advance to avoid the thermal collector tubes being freeze-cracked when the excessively low ambient temperature may causes damage to the thermal collector tubes.

The invention relates to plant-atmosphere gas exchange determination technology, in particular to a closed box system for determining whole tree gas exchange, which solves the problems that the prior art has no mature observation system with reliable use, simple and convenient operation and commercialization directly applied to single plant level (whole tree) gas exchange observation and the like. The system comprises lifting equipment, a box body, a base and a gas analyzer, wherein the box body used for closing determined tree is connected with the lifting equipment and arranged on the base; a sensor of the gas analyzer is arranged in the box body; and the gas analyzer adopts Li-6400 portable photosynthetic apparatus of American LICOR Company, and during determination, the sensor (containing IRGA) needs to be sealed in the box body. The system can realize simultaneous observation of gas concentration of CO2 and H2O of the whole tree, automatically acquire and store data, and automatically monitor air temperature of the box body, relative air humidity, photosynthetic active radiation, atmospheric pressure and other environment factors, and is favorable for research and application of tree gas exchange.

The invention provides a PTC heater. The PTC heater comprises a shell; a left side mounting end is arranged in the shell; a mounting hole is formed in the left side mounting end; a left supporting base is arranged at one end, provided with the left side mounting end, of the shell; a radiating layer is arranged in the shell; S-shaped radiating bars are arranged in the radiating layer; an aluminumtube is further arranged in the shell; the aluminum tube is provided with multiple PTC elements and multiple electrode strips; an insulating layer is arranged between the aluminum tube and the radiating layer; a right supporting base is arranged in shell at the right ends of the radiating layer and the aluminum tube; a temperature controller and a fuse are arranged in the right supporting base; a thermal shrinkage protection sleeve is arranged on the shell at one end of the right supporting base; the right supporting base and the left supporting base are both fixed with the shell through self-tapping screws; and the aluminum tube is fixed with the right supporting base and the left side mounting end through silica gel cushions. The PTC heater is simple in structure, reasonable in design, low in cost, relatively high in insulation property and fixation property as well as capable of automatically monitoring the internal temperature of the heater.

The invention belongs to the technical field of the electrical equipment, and specifically relates to an energy-saving type outdoor electrical cabinet. The energy-saving type outdoor electrical cabinet comprises a cabinet body, a partition plate in a horizontal direction is arranged in the cabinet body, an upper end and a lower end of the cabinet body are fixedly connected radiating boxes; an adjusting motor is arranged in each radiating box, and an output end of each adjusting motor is connected with a screw in the horizontal direction; the left and right threads are arranged on the outside surface of each screw, the other end of each screw is fixedly connected to an inner wall of each radiating box through a fixed bearing; a movable block is arranged on each screw, a blower fan is arranged at a surface of one side, close to the cabinet body, of each movable block; filtering air vents are formed on the inner walls at the upper end and the lower end of the cabinet body, and ventilationopenings are formed on two sides of the cabinet body, and multiple rotating shafts in the horizontal direction are arranged in the ventilation openings; the disadvantage of the prior art is overcome,the radiating performance of the electrical cabinet is improved, thereby preventing the dust from entering the electrical cabinet and prolonging the service life of the electrical cabinet.

The invention discloses a plant cultivation device. The device comprises a cultivation body and an intelligent control system; the cultivation body is in a cylinder shape, and comprises a top plate 1, glass plates with holes 2, an outer shell 3, a water tank 4, a columnar LED light source 6, mobile glass plates with holes 11 and a watering device; the intelligent control system comprises a humidity sensor 17, a temperature sensor 18, a light sensor 19, a water level monitor 21 and a microprocessor 20. According to the device, the temperature, the humidity, the illumination intensity and the water level of the water tank can be automatically monitored, controlling is conducted through the microprocessor on the basis of the condition of plants, and the mobile glass plates with the holes are rotated so as to form a relatively closed small greenhouse in the device for heat preservation, so that the whole temperature in a small range around the plants rises, and the phenomenon of uneven heating caused by a heating unit is avoided; automatic watering and light filling can be conducted, so that plant growth is guaranteed; moreover, the phenomenon of overflowing due to excessive watering on a traditional flowerpot is avoided, the appearance is beautiful, the structure is simple, and operation is convenient.

The invention discloses a novel power equipment box. The power equipment box structurally comprises a box cover, a control button and a box body, one side of the box cover is hinged with the front surface of the box body, and the back surface of the control button is movably clamped with the front surface of the box cover. According to the invention, replacement devices are arranged at the bottomsof power connecting poles. When one of the connecting poles in the series-connected power equipment box is broken and pulled out, and pressure plates can be combined by boost rings, so that internalconductive wires can be reconnected, and the remaining power connecting poles can work normally. At the same time, the temperature inside the box can be automatically monitored at any time. When the temperature is too high, a cooler is automatically started to cool the interior of the box body, and the situation that internal electronic elements are damaged and cannot work normally due to high temperature generated by work or the external environment is avoided.

The invention discloses a method for recycling municipal sludge. The method comprises mixing sludge, straws, YM bacteria, an amino acid stock solution, bacillus amyloliquefaciens SQR9 functional bacteria and trichoderma harzianum T37 functional fungi, conducting high temperature and low oxygen fermentation, conducting crushing, sieving and functional fermentation, and then crushing and sieving toobtain a finished product. Main raw materials are the municipal sludge and the crop straws that are large in quantity, large-scale and periodic production can be achieved, the sludge is from a local sewage treatment plant and meets the CJ / T309-2009 standard, and a raw material source is safe. The high temperature low oxygen and functional fermentation technology is utilized to solve the problem ofenvironment pollution caused by organic solid waste and achieve organic solid waste resource utilization and stable utilization.

The invention relates to a method for multi-level comprehensive utilization of hot spring waste water and heat. The method for multi-level comprehensive utilization of hot spring waste water and heatcomprises four parts: a hot spring swimming pool, a waste water ecological treatment part, a bathing part and a spirulina cultivation part, wherein the hot spring swimming pool is connected with a hotspring waste water plate heat exchanger and then connected with a swimming pool waste water ecological treatment part. The swimming pool waste water ecological treatment part is divided into two sections. The bathing part comprises a bathing room, a boiler room and a bathing waste water plate heat exchanger. The spirulina culture part consists of an algae pond, a stirrer, a temperature detector,a controller and a plate radiator. The water quality of hot spring swimming pool waste water treated by the method is safe when entering a fish pond; meanwhile, the heat of the hot spring waste waterand the bathing waste water is exchanged to be used for bathing and spirulina cultivation through the plate heat exchangers, and the energy consumption of bathing and spirulina cultivation is greatlyreduced due to no direct contact with the hot spring waste water and the bathing waste water.

The invention provides a generator temperature control device. The generator temperature control device comprises a cooling liquid supply device, a temperature measuring device and a temperature monitoring device, wherein the temperature monitoring device compares working temperature T with normal working temperature T1. The cooling liquid supply device comprises a first cooler and a second cooler. The temperature monitoring device outputs corresponding working signals to the cooling liquid supply device according to comparison results of the working temperature T and the normal working temperature T1. The generator temperature control device can automatically monitor temperature and perform automatic regulation and control according to the preset working temperature. The generator temperature control device automatically works at predicable temperature of a generator in a full automatic control mode and can be integrated to an upper computer to form centralized control, in this way, electric energy emitted from the generator is effectively maximized, and the labor intensity of workers is minimized.

The invention discloses a field plant ecological environment monitoring device which comprises a bearing base, a photovoltaic function structure and a cantilever monitoring base, wherein the photovoltaic function structure and the cantilever monitoring base are arranged on the bearing base; a servo motor is arranged at the end, away from the bearing base, of the cantilever monitoring base; a driving gear is arranged at the main shaft end of the servo motor; and the driving gear is engaged with a rack movable rod in the cantilever monitoring base; the upper end of the rack movable rod penetrates out of the cantilever monitoring base, the lower end of the rack movable rod extends into the storage barrel, a bearing disc is arranged at the end, located in the storage barrel, of the rack movable rod; and a plurality of soil sensors with different functions and downward detection heads are evenly distributed on the bearing disc around the vertical center line of the bearing disc; and the part, located above the cantilever monitoring base, of the rack movable rod and the part, located in the storage barrel, of the rack movable rod are provided with a lower stroke stop structure and an upper stroke stop structure respectively. The field plant ecological environment can be further monitored, the water content, the PH value and the temperature of soil can be automatically monitored, dataanalysis can be conveniently carried out in cooperation with remote sensing data, and field plant protection and rescue are facilitated.

The invention discloses a small water-removing machine. The small water-removing machine comprises a machine frame, a pull rod, a shell, a connecting rod, an inner rolling cylinder, a fire row, nylonwheels, a motor box, a motor, an exhaust window, a temperature sensor, an exhaust fan and a controller, wherein the motor box is fixedly arranged on the rear side of the shell, the shell is provided with the connecting rod, the connecting rod is connected with the shell and the motor box, a shell rotating shaft and a rotating shaft bearing frame are arranged between the connecting rod and the machine frame, a window through hole is formed in the upper part of the shell, and a fire row through hole is formed in the lower part of the shell; the round-basin-shaped rolling cylinder is arranged sothat a large water-removing space can be provided by using a less occupied area; the temperature sensor is arranged so that the temperature of the rolling cylinder can be automatically monitored, thetemperature is fed back to the controller to control the fire row, and the temperature of the rolling cylinder is controlled; and the exhaust fan is arranged so that the inner rolling cylinder can besubjected to ventilation and heat removal, discharging of wet steam evaporated by tea leaves is accelerated, and the tea leaves are prevented from turning yellow.

The invention discloses an explosion-proof flame-retardant structure of a lithium battery based on internal temperature measurement, which comprises a box body, a cover body buckled and connected with the box body, and a controller connected to the side wall of the box body, the bottom surface of the inner cavity of the box body is connected with a plurality of semiconductor chilling plates, and the box body is connected with a copper body below the semiconductor chilling plates. A plurality of copper columns are connected to the front side wall and the left side wall of the box body, external radiators are connected to the positions, corresponding to the copper columns, of the front side wall and the left side wall of the box body, a first temperature sensor and a second temperature sensor are installed in the box body, and two stepped clamping blocks are placed in the box body; two locking columns are connected to the upper portion of the cover body, and an electric control superfine dry powder fire extinguisher is connected to the upper portion of the cover body. The stepped clamping block is provided with a plurality of stepped notches with different gradients, the stepped clamping block is provided with a plurality of storage cavities with upward openings, and a plurality of gaskets with different widths and lengths are placed in the storage cavities.

The invention belongs to the technical field of solid waste treatment, and in particular relates to a microbial solid waste treatment system, including a tank body and a stirring device connected to the tank body, an air device, a pressure control device, a temperature control device, a humidity control and water supply device, and a measurement and control device The tank cover is provided with an inoculation port, a feed port, a sampling port and a liquid inlet and outlet, and a pH electrode is provided in the tank; the stirring device is composed of a motor, a stirring shaft and a stirring paddle; the air device includes an air inlet pipe and an air outlet pipe; The control system is used to automatically detect and control the pressure of the tank on-line; the temperature control device is composed of a fuzzy PID intelligent controller, electric heating and temperature electrodes; the humidity control and water replenishment device includes a secondary filter and water replenishment pipeline; the measurement and control device It is connected with the stirring device, the air device, the pressure control device, the temperature control device, the humidity control and water supply device, and the pH electrode. The invention is suitable for the treatment experiment of microbial solid waste in the controlled ecological life protection system.

The invention relates to an on-line permanent gas filling monitoring method which is characterized in that an industrial control host is provided and is connected with an industrial data acquisition and communication server; the industrial data acquisition and communication server is networked with a plurality of infrared temperature monitors and a plurality of pressure sensors; the infrared temperature monitors are respectively arranged on the middle part of a gas tank, and the pressure sensors are respectively arranged on a gas filling pipeline, so that the pressure and the temperature of the gas tank can be acquired, and a filling process of the gas tank can be managed and controlled. According to the on-line permanent gas filling monitoring method, infrared detection on temperatures is adopted, so that a user does not need to touch a detected object, and the on-line permanent gas filling monitoring method is suitable for measuring and monitoring of gas industry; an existing target is inducted in real time through a diffuse reflection photoelectric switch, so that a function of counting filled gas bottles is realized, and the temperature of the target can be automatically monitored; furthermore, the industrial data acquisition and communication server is used for sending acquired temperature information and pressure information to the industrial control host, so that concentrative management is facilitated.

The invention discloses a novel energy-saving supercharged immersion combustion heat exchange system, which belongs to the field of petrochemical industry and comprises a combustion device, an inverted U-shaped immersion device, a semi-closed evaporation device, an electric pressure control device, a waste heat power generation device and a heat exchange device. The combustion device is arranged in the evaporation device in an inverted funnel shape; the combustion device consists of a gas mixing chamber, a gas combustion chamber and an inverted U-shaped immersion pipe; the inverted-U-shaped immersion pipe with a plurality of bubbling holes in the left pipe wall is laterally arranged above the exhaust port, and the circulating baffles are arranged on the two sides of the immersion pipe and immersed in liquid in the evaporation chamber; the fuel gas conveying pipe and the air conveying pipe are covered by evaporated liquor, and the air conveying pipe is provided with an air compressor, so that the effects of increasing temperature and increasing pressure are achieved; and when the pressure in the evaporation chamber reaches a certain value, the electric pressure control device is automatically opened, and the high-temperature and high-pressure mixed flue gas enters the waste heat power generation device and the heat exchange device for secondary energy utilization. Through secondary utilization of a heat source, the energy utilization rate of the system is increased by more than 60%.

The invention relates to the field of high-voltage line control, and especially discloses a high-voltage line temperature automatic monitoring apparatus. The apparatus comprises a frame structure composed of a lateral support, two upright columns and an I-shaped or semi-I-shaped crossbeam, wherein the upright columns are provided with a GPRS and PLC control system, the two ends of the crossbeam are each provided with a limiting switch, the crossbeam is provided with a walking device, the walking device is fixedly connected with a detection device, the detection device comprises a vertical rod which is fixed on the walking device and is of a hollow structure, the vertical rod is internally provided with a rotation rod, the rotation rod controls rotation through a rotation stepping motor at the top end of the vertical rod, and the lower end of the rotation rod is provided with two infrared thermometric indicators. According to the invention, the line temperature can be automatically monitored, a line inspector does not have to arrive at a field, manpower and material resources are greatly reduced, at the same time, the detection scope of the infrared thermometric indicators is enlarged, and the monitoring investment is reduced.

The invention provides an intelligent tea pet which comprises a mother supporter and a plurality of son supporters, wherein a teapot is put on the mother supporter; a tea cup is put on each son supporter; a first sensing control assembly and a walking mechanism are arranged on the mother supporter; a second sensing control assembly is arranged on the son supporter; and the signal and data interaction transmission is performed between the first sensing control assembly and the second sensing control assembly so as to realize the goal of moving the mother supporter to the position of any one sonsupporter through the walking mechanism. The guest receiving efficiency and the service effect are greatly improved, so that the experience effect is better.

The invention discloses a split type ultrasonic level meter for an ocean engineering platform, and relates to the technical field of ocean engineering platform equipment. The split type ultrasonic level meter for the ocean engineering platform comprises a detector body and a probe body, a protective mounting mechanism is arranged on the outer side of the probe body, a cleaning mechanism, a temperature compensation mechanism and an anti-fluctuation mechanism are arranged below the protective mounting mechanism, and the temperature compensation mechanism is located between the cleaning mechanism and the anti-fluctuation mechanism. According to the split type ultrasonic level meter for the ocean engineering platform, the probe body is clamped in the protective cylinder in a sleeved mode, and compared with most ultrasonic level meters in the current market and ultrasonic level meters in comparison cases, the ultrasonic level meter is easier and faster to disassemble and assemble, a sealing box is good, the protective cylinder and the protective cylinder cover provide protection for the ultrasonic level meter, damage to the probe body caused by external factors is avoided, and the ultrasonic level meter is simple in structure, practical, efficient and beneficial to application and popularization.