60 results about "Liquid temperature" patented technology

The invention relates to a liquid cooling dynamic regulation control method, system and device with load feedback, and belongs to the technical field of liquid cooling distribution. Comprising the following steps: S1, acquiring inlet and outlet liquid temperature and real-time power consumption data of each to-be-cooled device in real time; s2, the inlet and outlet liquid temperature of each device is compared with a safe temperature threshold value, and the rotating speed of a water pump on the secondary side is dynamically adjusted according to the comparison result; when the inlet and outlet liquid temperature is close to the safe temperature threshold value, the heat dissipating capacity of each device is calculated according to the inlet and outlet liquid temperature and the real-time power consumption data; adjusting the rotating speed of the water pump according to the heat dissipating capacity; wherein when the S1 is executed, a fluid channel, used for heat exchange of the secondary side, in the primary side is set to be at the fixed opening degree, and the water temperature of the primary side is obtained in real time; and when it is detected that the water temperature of the primary side is abnormal or breaks down, the state of the fluid channel is automatically switched to the bypass mode. Dynamic adjustment of the rotating speed of the water pump is achieved, dependence on the total liquid return temperature is not needed, the cooling efficiency is improved, and energy consumption is reduced.

The invention relates to an ultrasonic power control method and system of a suspension chain cleaning machine, and relates to the technical field of suspension chain cleaning machines, and the method comprises the following steps: receiving input material information of a to-be-cleaned workpiece; matching a proper cleaning liquid temperature range of the to-be-cleaned workpiece based on the material information; acquiring a first cleaning liquid temperature sent by a temperature sensor in the cleaning tank; when the obtained temperature of the first cleaning fluid is not within the target temperature range, a heating device is started to adjust the temperature of the cleaning fluid, so that the temperature of the cleaning fluid is within the target temperature range; dividing the target temperature range into n sub-intervals, and obtaining an ultrasonic power and temperature mapping library; acquiring current temperature data sent by the temperature sensor and judging a sub-interval in which the current temperature is located; determining an ultrasonic power value corresponding to the subinterval where the current temperature is located based on an ultrasonic power and temperature mapping library; and controlling the ultrasonic transducer to perform ultrasonic cleaning based on the ultrasonic power value.

The invention belongs to the technical field of infusion heating, and discloses an infusion heating method, device and equipment based on PID (Proportion Integration Differentiation) adjustment and a storage medium, and the method comprises the following steps: constructing a temperature conversion model of the temperature of a sensor at a liquid outlet end and the temperature of transmitted liquid; heating the liquid at the liquid outlet end to a pre-heating temperature according to the target heating rate and a temperature conversion model; acquiring a first mapping relation table, and heating the liquid at the liquid outlet end to a target temperature according to the first mapping relation table and a PID algorithm; and a second mapping relation table is obtained, the input condition of the liquid inlet end position and the temperature of the middle position are monitored, and PID adjustment is conducted on the liquid temperature of the liquid outlet end or abnormity reminding is conducted on a user through the second mapping relation table and the temperature conversion model. The heating to the specified temperature is ensured, the working condition change in the heating process can be fed back and processed according to related parameters, the accuracy and stability of the heating process are ensured, the body temperature maintenance of a patient is facilitated, and the sudden change situation occurring in the midway of the steady state can be timely processed.

The utility model discloses a retractable multi-point temperature measuring device with double temperature measuring lines, which is provided with a protective shell, a grip is mounted on the side surface of the shell, and a bolt penetrates through the middle section of the inner surface of the shell; comprising a bearing penetrating through the outer surface of the shell, the outer surface of the bearing is connected with a winding roller, the winding roller is connected to a bolt in a threaded mode, and the side face of the outer surface of the winding roller is connected with a cover plate. The retractable multi-point temperature measuring device with the double temperature measuring lines is provided with a short temperature measuring line and a long temperature measuring line, and the short temperature measuring line adopts a fixed length design and is arranged on one side surface of a temperature measuring instrument shell; the long temperature measuring line adopts a unique structure similar to a measuring tape or a reel and mainly comprises a winding roller for accommodating the long temperature measuring line, and when the temperature of the liquid at a deep position needs to be measured, an operator can release the long temperature measuring line to detect the temperature of the liquid at different depths, so that the flexibility of measuring the temperature of the liquid at different depths by the equipment is effectively enhanced.

A device for determining the temperature of a liquid, in particular drinking water, conveyed in a pipeline (2), comprises a temperature sensor element (13) and a holder (11) for attachment to the pipeline (2). The temperature sensor element (13) is fastened to the holder (11) in such a way that, when the holder (11) is attached to the pipeline (2), it contacts an outer surface of the pipeline (2) in order to obtain measurement data relating to the outer temperature of the pipeline (2). The device further comprises a processing arrangement (20) for receiving the measurement data from the temperature sensor element (13) and for determining the temperature of the liquid conveyed in the pipeline (2), wherein the processing arrangement (20) is configured to determine the temperature of the liquid from the measurement data using a machine learning model.

The present application relates to the technical field of medical devices, in particular to a face pressure sore prevention device. The device comprises a shell, a liquid storage frame, a monitoring mechanism and the like. A circular hole is formed on the top of the shell. The shell is provided with the liquid storage frame. The liquid storage frame is provided with the monitoring mechanism. The monitoring mechanism is used for monitoring the temperature of the liquid in the liquid storage frame. The monitoring mechanism, the heating pipe and the refrigeration pipe can be used to monitor the water temperature in the liquid storage frame in real time and automatically adjust the heating or refrigeration. The liquid in the input water bag can be maintained in a preset comfortable temperature range. The defects of the prior art that the temperature of the air bag is easily affected by the environment are overcome. The discomfort of the patient's face caused by the overcooling or overheating of the temperature is avoided. The constant warm support can significantly improve the comfort of the patient in the long time prone position treatment, promote the local blood circulation of the face, enhance the tissue tolerance, and further reduce the risk of pressure injury on the basis of dynamic decompression.

The invention discloses a temperature detection method and device, a storage medium and drinking equipment, and the method comprises the steps: if a first water level of liquid in a hot tank of the drinking equipment at a first moment is smaller than a first preset water level, obtaining a historical water temperature of the liquid at a second moment and a duration from the second moment to the first moment, the second moment is the historical moment when the liquid leaves the first preset water level and is closest to the first moment, and the target water temperature of the liquid at the first moment is determined on the basis of the historical water temperature and the duration.

The present invention provides a constant temperature system for a ship cabin, including a first heat transfer medium circulation system, which includes a cold air duct, a liquid inlet pipeline, a liquid return pipeline, a first transfer pump, a first three-way valve, a second three-way valve, a first temperature sensor and a second temperature sensor; a second liquid return pipeline section connects the port two of the second three-way valve and the first liquid return pipeline; the second temperature sensor is communicatively connected to the second three-way valve; according to the cooperation between the temperature measured by the first temperature sensor and the first three-way valve, the liquid temperature of the second liquid inlet pipeline section is ensured to be stable within a predetermined temperature range; according to the cooperation between the second temperature sensor and the second three-way valve, the first heat transfer medium at a suitable temperature range enters the cold air duct; regardless of the temperature in the working cabin, the first transfer pump can always maintain an operating state, ensuring that there is always a source of the first heat transfer medium with a higher liquid temperature in the third liquid inlet pipeline section, and finally realizing the stability of the temperature in the ship cabin.

The application discloses a device for detecting the compressive strength of concrete under low temperature and high salt fog environment, and relates to the technical field of concrete durability test equipment. The device comprises a shell, an opening and closing device, a liquid adding device, a liquid level sensor, a liquid discharging valve, a liquid temperature sensor, a liquid concentration sensor, a spraying device, a temperature and humidity sensor, a fog concentrator, an air supply device, a heat leading device and a cold leading device connected to the air supply device, a base frame and a compressive strength detector. The device has the advantages that full-automatic closed-loop control can be realized on the liquid level, concentration, temperature of the soaking liquid, air temperature and humidity, and salt fog concentration, the test conditions are stable and repeatable, the multi-component pipes and nozzles of the spraying device are uniformly distributed, natural diffusion and settlement of the salt fog are realized, direct spraying is avoided, the air supply device cooperates with the heat leading device and the cold leading device, uniform heating and cooling are realized through air circulation, direct cold and hot collision is avoided, and the complete deterioration process of "salt fog wetting, low temperature freezing and dry concentration" can be accurately reproduced.

The embodiment of the invention provides a fan noise reduction method and device, a storage medium and an operation machine. The method comprises the steps of starting the heat dissipation device; when the fan is in the first mode, the fan is driven to dissipate heat of the cooling liquid till the cooling liquid reaches the target temperature, and the fan is driven to move by a preset distance towards the side away from the liquid level of the cooling liquid; when the driving fan moves by a preset distance towards the side away from the liquid level of the cooling liquid, whether the current temperature of the cooling liquid meets a liquid temperature balance condition or not is determined according to the current temperature of the cooling liquid and the target temperature, and the liquid temperature balance condition is determined based on the target temperature; under the condition that the current temperature of the cooling liquid meets the liquid temperature balance condition, returning to the step of driving the fan to move towards one side far away from the liquid level of the cooling liquid by a preset distance; and when the current temperature of the cooling liquid does not meet the liquid temperature balance condition, the immersion depth corresponding to the fan is determined, and the immersion depth of the fan can be rapidly, simply and conveniently adjusted.

The invention provides a cold-rolled strip steel cleaning liquid temperature control system and method, and relates to the technical field of cold-rolled strip steel cleaning, temperature data and power data of cleaning liquid in different time periods are obtained, and a mapping relational expression of the temperature data and the power data is established; comparing the temperature obtained through the mapping relation with a preset temperature threshold, identifying a temperature abnormal region, performing temperature monitoring on the temperature abnormal region, and determining a temperature fluctuation value; continuously acquiring a fluctuation value of the temperature, and performing abnormal temperature monitoring according to the fluctuation value of the temperature and a fluctuation threshold value to obtain a fluctuation abnormity early warning time period; and a PID algorithm is adopted to adjust the temperature corresponding to the early warning time period.

The invention provides a buffer device for high-temperature and high-pressure fluid discharge, and relates to the technical field of fluid treatment.The device comprises a buffer main body, a cavity is formed in the buffer main body, and pre-stored water is arranged at the bottom of the buffer main body; the discharge pipe is used for guiding fluid into the cavity; the cooling water spraying pipe is provided with a spraying opening and is arranged around the inner wall of the cavity; the liquid discharging assembly is used for discharging liquid after the liquid is cooled to a safe temperature; the exhaust assembly comprises a demister and a gas discharge valve, the demister is used for removing moisture in the gas, and the gas discharge valve is used for discharging the demisted gas; the pressure adjusting assembly is used for releasing excess gas in an overpressure state; the first temperature measuring point is used for monitoring the initial temperature of fluid entering the cavity; the second temperature measuring point is used for monitoring the liquid temperature to judge whether a safe discharge condition is met or not; the pressure measuring point is used for monitoring the pressure in the cavity; and the liquid level measuring point is used for monitoring the liquid level change in the cavity. The safety and stability in the high-temperature and high-pressure fluid discharging process are improved.

The invention discloses an atmospheric-vacuum distillation process and belongs to the technical field of distillation. Heating the sulfur-containing sewage into the distillation flask, and adding inert liquid; the distillation flask is heated, the temperature of the distillation flask is detected in real time through a temperature sensor, the pressure in the distillation flask is detected in real time through a pressure sensor, and negative pressure of the distillation flask is maintained through a capillary pressure reduction pipe extending into the distillation flask; the steam distilled from the distillation flask is condensed through the condenser, and the condensate is collected. According to the atmospheric and vacuum distillation process, through the temperature sensor and the pressure sensor, the temperature of liquid in the distillation flask and the pressure intensity in the distillation flask can be conveniently detected, the purpose of controlling the temperature and the pressure intensity during an experiment is further achieved, the condenser can enable water to be liquefied and condensed water to be liquefied in a contact mode, and the experiment efficiency is improved. Meanwhile, distillation can be selected under a normal pressure condition or a low pressure condition according to whether a capillary pressure reduction pipe is installed or not.

The present invention discloses a method for improving the co-firing of waste liquid in a thermal power plant. The main problems of the original combustion system are mainly reflected in three aspects: the viscosity is too high due to insufficient heating of the waste liquid, the tar cannot be completely burned due to poor atomization of the spray gun, and high-temperature corrosion is caused by the alkali metal contained in the waste liquid. In view of the problems occurring in the previous combustion process, the main improvement measures include: reducing the viscosity of the waste liquid, controlling the waste liquid temperature within the range of 85°C to 95°C; strengthening combustion to ensure complete combustion of the waste liquid; and preventing high-temperature corrosion of the heating surface in the furnace. After the above improvements are completed, the situations such as coking, agglomeration, high-temperature corrosion, and serious lag in steam temperature regulation during the co-firing of waste liquid in the thermal power plant have been greatly improved.

The utility model discloses a steel ball quenching device. The steel ball quenching device comprises a base, a ball flow guide mechanism and a collecting box, the base is provided with a quenching bath, and an opening of the quenching bath is upward; the ball flow guide mechanism is arranged on the base and comprises a flow guide frame, the flow guide frame is provided with a flow guide groove, the flow guide groove is located in the quenching pool and is obliquely arranged downwards in the length direction, the lower end of the flow guide groove is provided with a ball outlet, and the flow guide groove is provided with a ball inlet; the collecting box is arranged on the base, and the balls in the flow guide groove can enter the collecting box through the ball outlet. As the diversion trench is positioned in the quenching bath, the steel ball can roll for a longer distance in the quenching bath, the movement duration and distance of the steel ball in the quenching bath are improved, and the quenching uniformity is improved; and the steel balls enter the collecting box after more sufficient heat dissipation, heat is easily dispersed to all positions of the quenching pool, the risk that the temperature of quenching liquid near the collecting box is too high is avoided, and the quenching effect is improved.

The present application relates to the technical field of oil production engineering, and particularly relates to a method for determining water-mixing and temperature-raising parameters of an oil well wellbore, which aims to solve the technical problem that the water-mixing and temperature-raising process cannot determine the water-mixing amount and the mixed water temperature in the related art. The method for determining water-mixing and temperature-raising parameters of an oil well wellbore comprises the following steps: S1: finding out a relationship function corresponding to the wellhead produced liquid temperature and the produced liquid amount of an oil well in different seasons; S2: according to the produced liquid amount Q1 of a target oil well, selecting a corresponding relationship function to calculate the original produced liquid temperature T1 of the target oil well; S3: setting a new produced liquid temperature T0 of the target oil well, and according to an energy conservation calculation formula Q2T2=k(Q1+Q2)T0-Q1T1, calculating the required water-mixing amount Q2 and the water-mixing temperature T2 of the target oil well, wherein T0 is greater than the crude oil freezing point of the target oil well, and the coefficient k is 0.7-1. According to the production basic data of the oil well, the method simulates and calculates the required water-mixing amount and the water-mixing temperature of the wellbore water-mixing and temperature-raising process, and provides data guidance for the wellbore water-mixing process.

The invention discloses a temperature field control device suitable for ultralow thermal expansion coefficient measurement, which comprises a thermostatic bath, a liquid conveying pipeline, a heating cavity, a temperature control system and a temperature measurement system, and is characterized in that the heating cavity is arranged in a vacuum environment, and an ultralow thermal expansion sample is placed in the heating cavity; a heating wall is arranged on the inner wall of the heating cavity and is of a three-layer circulation structure. The thermostatic bath is connected with the heating cavity through a liquid conveying pipeline and comprises a first thermostatic bath body and a second thermostatic bath body, the first thermostatic bath body provides thermostatic liquid and enters the outermost shielding layer, the second thermostatic bath body provides liquid with adjustable temperature of the temperature adjusting layer, and the temperature measuring system is used for collecting temperature changes of all positions of a sample. The temperature control system is used for controlling the temperature of liquid in the thermostatic bath to adjust the temperature field, and the requirement for uncertainty of the linear expansion coefficient measurement standard is met. According to the invention, the temperature measurement standard uncertainty and the test requirement during the ultralow thermal expansion test can be met, and uniform dynamic control and precise measurement of the temperature of the sample in the vacuum environment are realized.

The utility model discloses a flow regulating valve, include: valve body, be equipped with the water pass hole's check element and the valve rod of wearing in the water pass hole, be equipped with the limit step and the valve core on the valve rod, be equipped with the water pass channel on the flow regulating valve, be equipped with the temperature sensing spring of the direction of promoting the valve rod to the water outlet cavity in the valve body, and the elastic coefficient of temperature sensing spring increases with temperature rise, and the check element can move along the axial between limit step and the valve core. The utility model discloses through the cooperation of the slidable check element and the temperature sensing spring that can reduce the elastic coefficient according to the reduction of temperature, realizes the automatic regulation of flow regulating valve opening degree, makes flow regulating valve when two kinds of circumstances of hydraulic pressure increase and liquid temperature reduction, can automatically reduce the liquid flow of flowing out flow regulating valve, when the downstream installation of flow regulating valve has instant heating device, can reduce the liquid flow of entering instant heating device, to guarantee that instant heating device can heat the liquid that flows to the set temperature, improves the use experience of user.

The invention relates to the technical field of coal mine shaft construction, in particular to an active thermal insulation control method under the freezing method construction condition. Comprising freezing holes formed in the periphery of a shaft, heat insulation holes and temperature measurement holes located between a derrick foundation and the freezing holes, a heat preservation plate pasted outside the derrick foundation, and a temperature, pressure and deformation monitoring system. The method comprises the following steps: starting independent liquid circulation of a freezing hole and a thermal insulation hole, starting a monitoring system, and collecting multi-source real-time data such as temperature, pressure and deformation in real time; inputting the data into a preset data fusion and intelligent prediction control system, and predicting the frost heaving deformation trend of the future derrick foundation through a built-in prediction model; and according to the prediction result, the liquid inlet temperature and flow of the thermal insulation hole are dynamically adjusted. According to the invention, the conversion from passive thermal insulation to active prediction and intelligent regulation is realized, the safety of the derrick foundation can be effectively protected, and the frost heaving hazard is reduced.

The application discloses a single-phase immersion liquid cooling temperature stratification evaluation and disturbance liquid injection equalization control system and relates to the technical field of liquid cooling circulation structures.The single-phase immersion liquid cooling temperature stratification evaluation and disturbance liquid injection equalization control system comprises a reflux liquid multi-point liquid inlet dynamic monitoring module, which collects liquid cooling branch state data; an immersion liquid temperature stratification monitoring module, which evaluates the thermal distribution unevenness degree and adjusts a disturbance liquid injection strategy; a liquid flow distribution equalization evaluation module, which analyzes the liquid flow distribution and heat dissipation matching degree and optimizes a flow direction coverage strategy; a cooling path dynamic determination and switching module, which evaluates the cooling state and thermal load change and regulates and controls a circulation path; and an immersion liquid cooling cabinet local disturbance self-balancing regulation and control module, which guides local convection and adjusts a disturbance direction.The application solves the problem that, after the reflux of the cooling liquid branch, the cold and hot layers are seriously stacked, local heat accumulation in the immersion liquid cooling cabinet is caused, and the chip heat dissipation efficiency is affected.

The invention discloses a self-adaptive intelligent disinfectant adding device for a water treatment system, which belongs to the technical field of water treatment and comprises a disinfection tank, a liquid inlet pipe positioned on the side edge of the disinfection tank and a liquid discharge pipe arranged at the bottom end of the disinfection tank. The compensation adding mechanism is arranged at the top of the disinfection tank, the first guide pipe and the second guide pipe are in sliding sealing fit, reliable sealing is achieved through port dislocation in the initial state, unexpected leakage of a disinfectant is avoided, a heat conduction rod penetrates into the position below the liquid level of the disinfection tank, and liquid temperature changes can be captured in real time; the internal thread pipe can be driven to rotate without extra power by means of the material characteristic that the spiral bimetallic strip deforms along with temperature, then the second guide pipe is controlled to stably ascend and descend along the first guide pipe through meshing transmission with the screw rod, and when the temperature difference value reaches a set threshold value, the internal thread pipe is driven to rotate. The first port and the second port are automatically communicated, so that the disinfectant can be instantly compensated and added, and the disinfection effect is ensured to always meet the expected standard.

The invention relates to the technical field of bridge construction, in particular to a bridge large-size bearing platform concrete hydration heat temperature control system which comprises a plurality of backflow pipelines laid in a bearing platform according to preset positions to achieve targeted temperature adjustment of concrete in different areas; the plurality of temperature detection modules are in one-to-one correspondence with the backflow pipelines, and each module comprises a plurality of temperature sensors; each backflow pipeline is connected with the pressure pump, the temperature adjusting device and the temperature detecting device and is responsible for adjusting the liquid flow speed and temperature and detecting the liquid temperature, and it is guaranteed that the temperature control process is accurate and controllable. The data analysis module serves as a core hub and is connected with all the parts, and the working mode of the backflow pipeline is judged and adjusted in time according to data fed back by the temperature sensor. Complex temperature changes in the concrete can be dealt with in real time, potential quality hazards such as concrete cracks caused by the temperature problem are effectively prevented, and the construction quality and durability of the bridge bearing platform are remarkably improved.

The application discloses a liquid temperature control method and device, and a temperature control equipment. The method comprises the following steps: determining a current actual temperature of a target liquid and a current sensing temperature of the target liquid during boiling of the target liquid; determining a current temperature difference value of the target liquid according to the current actual temperature of the target liquid and the current sensing temperature of the target liquid; determining a temperature threshold corresponding to the current actual temperature according to the current temperature difference value of the target liquid and a target temperature of the target liquid; determining a control parameter corresponding to a current temperature control operation of the target liquid according to the current actual temperature of the target liquid and the temperature threshold corresponding to the current actual temperature; and performing the current temperature control operation on the target liquid according to the control parameter corresponding to the current temperature control operation of the target liquid. It can be seen that the application can reduce the temperature deviation of the heating liquid process, and is beneficial to improving the control accuracy and the control efficiency of the liquid temperature.

The present invention provides a thermal stratification mitigation device and a temperature regulation method, which relate to the technical field of liquid temperature regulation. The thermal stratification mitigation device includes a liquid holding pool, an air supply component, a first heating component and a temperature measuring component, wherein the liquid holding pool is used to hold liquid; the air supply component includes an air supply pipe, and the air outlet end of the air supply pipe extends into the lower area of ​​the liquid holding pool; the first heating component is provided in the liquid holding pool, and the number is at least two and arranged in the up and down direction, and is used to heat the liquid in the corresponding height area in the liquid holding pool; the temperature measuring component is provided in the liquid holding pool, and the temperature measuring component includes at least two liquid thermometers arranged at intervals in the up and down direction, and the liquid thermometer is used to detect the liquid temperature in the corresponding height area in the liquid holding pool. The temperature regulation method is applied to the above-mentioned thermal stratification mitigation device. The thermal stratification mitigation device can quickly and effectively alleviate the thermal stratification phenomenon of the liquid, thereby reducing damage to the liquid holding pool and extending its service life.

The invention provides a real-time closed-cup flash point prediction method based on a trace distillation range measuring device, and relates to the technical field of distillation ranges and flash point tests.The method comprises the following steps that a preorder distillation range temperature set is obtained in real time, and the preorder distillation range temperature set comprises initial steam temperatures corresponding to a plurality of preset recovery volume percentage nodes; the steam pressure and the liquid temperature are obtained in real time to obtain the steam pressure change rate and the liquid temperature change gradient, and then the heat capacity disturbance factor of the device is calculated; correcting each initial steam temperature in the preorder distillation range temperature group in real time by using a heat capacity disturbance factor to obtain a corresponding first corrected steam temperature; and calculating and predicting the closed-cup flash point through linear weighting calculation of each first corrected steam temperature based on a weight distribution relation pre-established by the test steam temperature of the preset recovery volume percentage node and the linear correlation characteristic of the closed-cup flash point. According to the method, the closed-cup flash point is predicted while the distillation range is measured, and time and samples are remarkably saved.

An apparatus for indicating temperature of a liquid inside a bottle includes a housing having an upper surface configured to support a bottle and a base surface configured to rest on a structure. The apparatus further includes a non-contact thermometer located inside the housing and one or more indicators to display or provide an indication of a temperature state of the bottle. The apparatus also includes a processor. The non-contact thermometer senses temperature of a bottle placed on the upper surface of the housing and sends signals relating to the temperature to the processor, wherein the processor is configured to alert a user if there is an increase in temperature state of the bottle.

The invention relates to the field of geotechnical engineering, and discloses a device and a method for automatically testing disintegration of solidified muck under water-heat-force coupling. The device comprises a test container, a transmission and loading assembly, a temperature control system, a dynamic flow field simulation assembly, an image acquisition assembly and a computer processing system, and the coupling effect of a water field, a thermal field and a force field is realized in the same test space by cooperatively regulating and controlling the disintegration liquid temperature, the water flow shearing condition and the sample immersion state. According to the method, the soaking disintegration test is performed on the solidified muck sample based on the device, mechanical response data and image information are synchronously acquired in the test process, and the disintegration stabilization time is automatically judged according to the change condition of the disintegration amount along with time, so that automatic control and multi-parameter synchronous acquisition of the disintegration test process are realized; and an objective and reliable test means is provided for evaluating the water stability of the solidified muck.

The invention discloses an extraction system capable of monitoring the temperature of extract liquor in real time, and belongs to the technical field of chemical experiment equipment. The system solves the problems of large deviation and inaccuracy caused by the fact that an existing Soxhlet extraction device adopts a single-neck round-bottom flask and cannot directly monitor the temperature of extract liquor and only indirect temperature measurement is adopted. According to the technical scheme, a multi-neck round-bottom flask is adopted to replace a single-neck flask, a first neck part of the multi-neck round-bottom flask is connected with an extraction tube, a second neck part is provided with a temperature sensor through a ground port, and a sensing part of the sensor extends into the flask and is immersed in an extraction solution. According to the system, thermal resistance of a bottle wall is avoided through direct contact type temperature measurement, accurate real-time monitoring is realized, and the system is used for accurately controlling heating, stabilizing temperature and improving efficiency and reliability in a chemical extraction experiment.

The invention relates to a liquid level measuring device based on a temperature difference demarcation point. Real-time measurement of the liquid level height of a corresponding application background is achieved. The slender structural member is filled with heat conduction liquid and is mounted perpendicular to the surface of to-be-detected liquid, and the bottom end extends to the bottom of the to-be-detected liquid; the control device controls the heating wire immersed in the heat conduction liquid to heat the heat conduction liquid until the value measured by the first temperature-sensitive resistor reaches the set temperature, the thin and long structural part with small thermal inertia is partially immersed in the liquid, the temperature difference demarcation point is consistent with the liquid level height, the value measured by the second temperature-sensitive resistor is the temperature value of the liquid to be measured, and the temperature difference demarcation point is consistent with the liquid level height. The length of the first temperature-sensitive material resistance wire is consistent with that of the slender structural member, the first temperature-sensitive material resistance wire is immersed in the heat conduction liquid, and two ends are respectively fixed at the top end and the bottom end of the slender structural member; the liquid level height of the liquid to be measured can be determined according to the temperature value measured by the first temperature-sensitive resistor, the temperature value measured by the second temperature-sensitive resistor and the actually measured resistance value of the first temperature-sensitive material resistance wire.

The utility model belongs to the field of fuel cell testing devices, and particularly relates to a humidifying tank for a fuel cell testing table. The humidifying tank comprises an inner container and an outer container wrapping the inner container, the inner container is provided with an inner container water storage area, the outer container is provided with an outer container liquid storage area, gas to be humidified makes full contact with pure water in the inner container, flowing liquid with the temperature controlled is introduced into the outer container, and the outer container is connected into an external temperature adjusting water tank. By controlling the temperature of the liquid in the outer container, the temperature of the water in the inner container can be kept stable and uniform, and the temperature of the water in the inner container can be increased or decreased. Compared with the prior art, the device has the beneficial effects that the temperature of the humidified reaction gas can be quickly and accurately increased and reduced to a set dew point temperature, so that the phenomenon of condensation or condensation of the humidifying tank and the reactor inlet reaction gas can be fully avoided, and the optimal operation condition of a membrane electrode can be quickly found out; the membrane electrode testing time can be greatly saved, and the device is safe and reliable.