752 results about "Water baths" patented technology

A grouting simulation test system and method for high-temperature water-rich filled fractures. The grouting simulation test system comprises: a water head intelligent sensing and adjusting module, a fracture medium intelligent simulation module, a double-liquid grouting module, a data analysis module, and an intelligent control module. The fracture medium intelligent simulation module comprises a water bath circulation temperature control unit, a fracture model (11), and an opening degree adjustment unit. The water bath circulation temperature control unit is arranged on upper and lower sides of the fracture model (11). Circulating water is provided in the water bath circulation temperature control unit, and the temperature of the circulating water is controllable. The fracture model (11) is formed by combining a plurality of model units. The opening degree adjustment unit is connected to the water bath circulation temperature control unit above the fracture model (11) and is capable of raising and lowering the water bath circulation temperature control unit. The present test system can achieve the study of a grouting diffusion mechanism under the coupling action of two or more factors such as different slurry properties, dynamic water flow velocity, dynamic water temperature, fracture medium multivariate factors, medium temperature, and filling conditions.

The utility model discloses a vacuum parallel concentrator convenient for opening an upper cover, which belongs to the technical field of concentrators, and adopts the technical scheme that the vacuum parallel concentrator comprises an oscillation module, and a hot bath module is arranged at the top of the oscillation module. The problem that the sealing effect is poor due to the difference of manual operation techniques and force of a user is avoided, the electric push rod accurately controls the rotating rod to rotate, so that the cover plate is driven to be stably opened and closed, it is ensured that the position and the pressing degree are consistent every time closing is conducted, and the sealing environment of the hot bath module and the sample tube in the hot bath module is effectively guaranteed; the experimental accuracy and stability are improved, the operation convenience is greatly improved, the labor intensity of a user is reduced, especially when multiple samples are treated, the operation time is saved through the automatic opening and closing function, the working efficiency is improved, the overall use experience is optimized, and the equipment operation better meets the efficient and accurate requirements of modern laboratories.

An experimental apparatus for planar interfacial shear of a hydrate-bearing sediment includes a planar interfacial shear box, a torsional and axial loading device, a nitrogen gas source, a methane gas source, a pressure-volume controller, a water bath device, a back pressure valve, a gas-water separator, a gas flowmeter, and a data acquisition system. The planar interfacial shear box includes an upper pressing plate, an upper adapter, an upper thermal insulation plate, a ram adapter, a lower ram, an upper base, a lower base, a lower thermal insulation plate, a lower adapter, and a lower pressing plate that are coaxially connected in sequence from top to bottom. The experimental apparatus offers a simple specimen preparation method, enabling in-situ formation of a hydrate-bearing sediment in the shear box. The experimental apparatus ensures uniform stress distribution during shearing, and can acquire the interfacial shear mechanical characteristic between the hydrate-bearing sediment and a structure.

The present invention relates to a system for providing hot or cold therapy, featuring a tub with a shell comprising a base, head and foot end walls, and left and right walls forming a recess for water containment. The tub includes a seat with a horizontal surface extending from the foot end wall, and side and head end walls extending downward, creating left and right foot cubbies adjacent to the tub shell walls. A control unit, extending from the foot end wall, houses a heat pump unit for heating or cooling a water temperature, and may include a UV filter, a carbon filter unit, and a water pump. This system is designed to offer therapeutic benefits through temperature-controlled water immersion, with optional or included features for enhanced water quality, hygiene, utility and comfort.

The invention provides a building external window solar heat gain coefficient detection device and a control method thereof. According to the device, a detection chamber is divided into an outdoor environment simulation chamber and a heat metering box environment chamber through a partition wall. And a test piece frame for arranging a tested piece is arranged on the partition wall body. A heat metering box, a cooling circulation system and a data acquisition device are arranged in the heat metering box environment chamber. The heat metering box is provided with an opening located at the test piece frame so as to receive simulation radiation of the outdoor environment simulation chamber penetrating through the tested piece. The detection work of the solar heat gain coefficient of the external window of the building is not influenced by natural conditions such as weather, and the test efficiency is improved. Furthermore, a channel flat pipe and a constant-temperature water bath device in the cooling circulation system are matched with each other, it is guaranteed that the temperature in the environment chamber of the heat metering box is kept stable, and the stability and accuracy of detection data are improved while the structure of the device is simplified.

The invention belongs to the technical field of coal mine fire prevention and extinguishing, and particularly provides a coal mine goaf fire simulation experiment device and method. Comprising an experiment table groove body, a working face channel, an air inlet way, an air return way, a ventilation system, a goaf groove body, a water bath heating and heat preservation system, a goaf temperature simulation system, a distributed temperature acquisition system, a goaf gas environment simulation system and a gas acquisition system. According to the invention, the inclination pitching angle, the coal rock porosity, the goaf ignition position, the internal gas components and the like of the goaf can be simulated according to the actual conditions of different working surfaces of each coal mine, and the evolutionary process of the spontaneous ignition accident of the goaf is realized. According to experimental data, development and change states of internal temperature, gas components and the like of the goaf of each coal mine can be determined, key fire prevention and control areas of the goaf in each period of coal mining are found out, early warning is performed in advance, and life and property safety of underground personnel is guaranteed.

The utility model discloses an article viscosity measuring device which comprises a viscometer, a water bath box and a temperature controller, a temperature sensor is fixedly installed at the middle end of the bottom of an inner cavity of the water bath box, an electric heating pipe is fixedly installed at the lower end of the inner cavity of the water bath box, and a protective cover plate is movably connected to the top of the outer surface of the water bath box. And the right end of the protective cover plate is movably connected with a viscosity pipe. Through the arrangement of the viscosity tube, fluid needing to be tested can be contained, through the arrangement of the adjusting screw rod, the U-shaped guide plate, the guide groove, the locking clamping block and the L-shaped guide strip, the effect of rapidly clamping and fixing the viscosity tube is achieved, the viscosity tube is effectively prevented from displacing, and the working efficiency is improved. Meanwhile, through the arrangement of an electric heating pipe, a temperature sensor, a water bath box and a temperature controller, the effect of constantly regulating and controlling the temperature around the viscosity pipe is achieved, and the accuracy of subsequent detection of the viscometer on the fluid in the viscosity pipe is effectively guaranteed.

The invention provides a modeling method of a litchi fresh-keeping and thawing temperature control model based on a thermodynamic model in an electromagnetic field. The modeling method specifically comprises the following steps: S1, establishing a thermodynamic model of a litchi fresh-keeping and thawing system; s2, obtaining the specific heat capacity of the litchis according to the thermodynamic model; s3, calculating the internal temperature of the litchis; s4, constructing a GRU model, and training the GRU model by using the litchi internal temperature data obtained in the step S3 and the collected unfreezing environment temperature and unfreezing water bath temperature as a training set; s5, a whale optimization algorithm is adopted to optimize the GRU model, the optimized GRU model outputs the litchi thawing temperature Tpred (t), and t is time; and S6, a litchi thawing temperature control strategy based on a fuzzy PID controller is constructed, the Tpred (t) serves as the input of the litchi thawing temperature control strategy, the Tpred (t) is compared with a preset value, and output control is conducted according to the comparison result.

The utility model provides a device for testing defoaming and foam inhibition performance, which is characterized by comprising an air pump, a three-way pipe, a first measuring cylinder, a second measuring cylinder, a foaming structure and a constant-temperature circulating water bath device, the air pump is connected with a first end of the three-way pipe through a first connecting pipe, the first measuring cylinder and the second measuring cylinder are identical in structure, and jackets are arranged on the outer walls of the measuring cylinders. The jacket of the first measuring cylinder is connected with the jacket of the second measuring cylinder through a second connecting pipe, the jacket of the second measuring cylinder is connected with one end of the constant-temperature circulating water bath through a third connecting pipe, and the jacket of the first measuring cylinder is connected with the other end of the constant-temperature circulating water bath through a fourth connecting pipe; the second end and the third end of the three-way pipe are connected with foaming structures through a fifth connecting pipe and a sixth connecting pipe respectively, and the two foaming structures stretch into the first measuring cylinder and the second measuring cylinder respectively. The device for testing the defoaming and foam-inhibiting performance can be operated simply and test the defoaming and foam-inhibiting performance quickly.

The invention discloses a preparation method of a photocuring release agent suitable for a flexible substrate, and belongs to the technical field of release agents. The preparation method disclosed by the invention comprises the following steps: respectively preparing the dynamic epoxy acrylate, the biological fiber and the SiO2 (at) PDMS compound; the preparation method comprises the following steps: adding dynamic epoxy acrylate, a flexible monomer PEG400DA and an antistatic agent into a reaction kettle, stirring in a water bath at 60 DEG C, adding biological fibers and the SiO2-coated PDMS compound, dispersing, grinding by three rollers, adding a photoinitiator, a flatting agent and a defoaming agent, stirring at a low speed under a dark condition, and transferring a mixed solution to a vacuum defoaming machine for treatment. Through dynamic covalent bond design, a synergistic effect of a biological-inorganic composite material and refined process control, the problems of high shrinkage, low flexibility and insufficient interface bonding force of a flexible substrate photocuring release agent are solved.

The invention discloses a low-temperature safety valve leakage detection device based on electrical capacitance tomography, which comprises a liquid nitrogen storage container, a test container, a low-temperature stop valve, a detected low-temperature safety valve, a constant-temperature water bath device, a flow meter, a water tank, a leakage detection pipeline, a capacitance measurement system and a data acquisition and software system, the capacitance measuring system comprises a plurality of groups of copper electrode plates and a processing module, each group of copper electrode plates comprises two copper electrode plates arranged on two opposite side parts of the water tank, and the copper electrode plates are used for capturing bubbles formed by the low-temperature gas in the cavity and acquiring capacitance signals; and the copper electrode plate is electrically connected with the data acquisition and software system through the lead electrode plate connector and the shielding coaxial cable. Insulation supports are arranged between the water tank and the copper electrode plates, the interior of the water tank is divided into a plurality of cavities, and communication gaps are formed between the adjacent cavities. The invention further discloses a low-temperature safety valve leakage detection method based on electrical capacitance tomography. According to the method, the accuracy and comprehensiveness of calculating the leakage rate of the low-temperature gas are improved.

The invention belongs to the technical field of petroleum non-metal composite pipe performance testing, and particularly relates to a non-metal composite material whole pipe apparent heat conductivity coefficient testing method and device. The invention relates to a method for testing the visual heat conductivity coefficient of a whole pipe of a non-metal composite material object. The method comprises the following steps: filling a cavity of a test pipe section with water; a plurality of pipe body temperature measuring points are laid on the outer surface of the test pipe section, and environment temperature measuring points are arranged near the test pipe section; respectively connecting two ends of the test pipe section with a constant-temperature water bath inlet and outlet; setting the constant-temperature water bath temperature, starting a circulating pump after the temperature is constant, and keeping the temperature of the inner and outer surfaces of the to-be-tested pipe section constant; and performing heat flux density measurement on the test pipe section by adopting an unsteady-state heat dissipation method, and determining the apparent heat conductivity coefficient of the test pipe section. The non-heat-flux density is determined by testing the fixed-mass hot water enthalpy drop in the pipe section and the outer side surface area in a short time through a steady-state heat dissipation method, and compared with existing direct measurement of the heat flux density, the error is small, and the whole-pipe apparent heat conductivity coefficient of a non-metal composite material object can be reflected more accurately.

The invention relates to the technical field of concrete fracture tests, in particular to a preparation method of a transparent resin-based imitation concrete material. Comprising the following steps: S1, weighing raw materials: weighing epoxy resin and a curing agent according to a mass ratio of 20: 1; s2, material mixing: pouring the epoxy resin and the curing agent into a stirring cup, placing the stirring cup in a planetary gravity stirrer, and performing high-speed mixing under a vacuum condition; s3, water bath cooling: putting the mixed liquid subjected to vacuum defoaming into cold water for water bath cooling; s4, pouring and forming: slowly pouring the cooled mixed solution into a mold, and standing and primarily curing at room temperature to form an initial setting body; s5, constant-temperature curing: transferring the mold containing the initial setting body into a constant-temperature drying oven, and continuously curing; and S6, demolding the test piece: after curing is completed, removing the mold to obtain the transparent imitation concrete resin test piece with a smooth surface and no bubbles inside. By adopting the transparent resin-based imitation concrete material, the damage characteristic can be directly observed, and an experimental basis is provided for high-pressure water jet stress wave cracking concrete.

The invention provides a method for preparing a fluorocarbon resin super-hydrophobic coating, and relates to the field of coatings. The preparation method comprises the following steps: adding nano silicon dioxide into a mixture of ethanol and water, stirring, and carrying out ultrasonic dispersion to obtain a dispersion liquid; dropwise adding a silane coupling agent into the dispersion liquid, ultrasonically dispersing uniformly, heating and stirring in a water bath, cooling to room temperature, centrifuging, washing a solid with absolute ethyl alcohol, and drying to obtain nano silicon dioxide powder; s2, mixing the nano silicon dioxide powder prepared in the step S1 with an N-methyl pyrrolidone solution of PVDF, and uniformly stirring to obtain coating slurry; and taking an absolute ethyl alcohol solution of epoxy resin as a primer, spraying the primer on the cement surface, curing, spraying the coating slurry, and curing to obtain the coating. The super-hydrophobic coating plays a role in protecting and strengthening the cement matrix, and the mechanical strength of the surface of the cement matrix is improved.

The utility model discloses a pretreatment device for testing free iron in soil, which relates to the technical field of experimental equipment and is used for performing water bath heating on a solution in a test tube placed in a water bath box, a magnetic stirring mechanism for stirring the solution is arranged in the water bath box, and the pretreatment device comprises a plurality of groups of water bath tanks arranged on the water bath box, the water bath box is provided with a plurality of groups of water bath tanks, so that the device can treat a plurality of samples at the same time, water in the whole water bath tanks does not need to be heated for treatment when the water bath box is used, the treatment efficiency is improved, the resource utilization rate is increased, and the water bath box is convenient to use. The water temperature in the inner barrel is controlled through the temperature controller, the heat preservation layers are arranged in the water bath tanks, the water temperature can be prevented from being greatly changed, the situation that the water temperatures in the adjacent water bath tanks are exchanged and the treatment result is affected can be prevented, and the magnetic stirring mechanisms are arranged in the water bath tanks, so that the magnetic rods stir the solution in the test tubes.

The invention provides a metal corrosion measuring device which comprises a circulating mechanism which comprises a storage bottle containing fluid and a water bath kettle connected with the storage bottle, and an experimental mechanism which comprises a circulating pool connected with the storage bottle and the water bath kettle through guide pipes and a metal rod vertically arranged in the circulating pool, and the ultrasonic transmitter is connected with the circulating pool. In addition, the invention also discloses a determination method.

The invention discloses a heat pipe thermophysical property testing device, system and method based on liquid cooling flow equalization, and the device comprises a liquid cooling flow equalization system which is provided with a plurality of parallel and mutually isolated flow channels, and a condensation section of a to-be-tested heat pipe is inserted into a liquid cooling cavity to form forced convection; an upper heating block and a lower heat insulation block of the heating unit clamp and fix an evaporation section of the heat pipe to be tested; the liquid cooling flow equalizing system is arranged on the inclination angle adjusting mechanism; the data acquisition unit comprises temperature sensors which are respectively arranged at liquid inlets and liquid outlets of the flow channels, and at least two temperature sensors which are arranged at a heat insulation section of the heat pipe to be tested; according to the system, a circulating water bath device, a high-pressure constant-flow pump, a filter and a testing device form a closed-loop liquid path. The real heat transfer amount of the heat pipe is inversely calculated through the heat absorption amount of the cooling liquid, the equivalent heat conductivity coefficient and the limit power are obtained by combining the two-point temperature difference of the heat insulation section, multiple heat pipes of different specifications are tested in parallel at a time, and the test efficiency and the data accuracy are improved.

The invention relates to the technical field of corrosion tests, in particular to environment simulation equipment based on an internal corrosion test, which comprises a test box, a collection box and a water bath box, the test box is fixedly mounted at the top of the water bath box through four supporting blocks, and the four supporting blocks are respectively positioned at four corners between the test box and the water bath box; the medium box enables the spraying assembly to accurately spray a test medium in the box to the surface of a test sample borne by the bearing assembly through the water inlet pipe and the spraying assembly, a corrosion test simulation environment is constructed, the flow sensor collects medium flow signals in real time, and the control module adjusts the rotating speed of the water pump and the opening degree of the electromagnetic valve according to signal feedback. Precise detection and dynamic adjustment of the spraying flow are achieved, the consistency of spraying working conditions of multiple groups of test samples is guaranteed, meanwhile, the water bath box conducts temperature pretreatment on media in the medium box in a water bath heating mode, the water bath box and a thermometer complete cooperative regulation and control of the temperature, precise control of the test temperature is achieved, and the corrosion simulation requirements of different service environments are met.

The invention relates to cold drawing steel for a high-straightness precision lead screw and a manufacturing method of the cold drawing steel, and belongs to the technical field of metallurgy. The steel comprises the following chemical components in percentage by mass: 0.50 to 0.60 percent of C, 0.15 to 0.40 percent of Si, 0.60 to 0.90 percent of Mn, less than or equal to 0.025 percent of P, less than or equal to 0.025 percent of S, 0.10 to 0.30 percent of Cr, less than or equal to 0.25 percent of Ni, less than or equal to 0.25 percent of Cu, less than or equal to 0.10 percent of Mo, 0.010 to 0.030 percent of Al, 0.0040 to 0.0080 percent of N and the balance of Fe and inevitable impurity elements. Sorbite, pearlite and a small amount of ferrite structures are obtained in an XDWP water bath and stelmor cooling mode, excellent structure conditions are provided for spheroidizing annealing, the spheroidizing structure obtained through one-time annealing reaches the fifth level or above, higher drawing straightness is obtained, the straightness is smaller than 0.5 mm / m, and the requirement for cold drawing steel for a high-grade lead screw is met.

The invention discloses a lubrication degree detection device for lubricating oil production, and relates to the technical field of lubricating oil detection.The detection device comprises a control console, a lower end cover, a heat preservation box and an upper end cover are sequentially arranged above the control console, and a water bath box is arranged in the heat preservation box; compared with an existing detection device, the detection device is provided with the pretreatment assembly and the cleaning assembly, bubbles in the lubricating oil to be detected can be effectively removed through the pretreatment assembly before the lubricating oil in the viscosity pipe is tested, and therefore the detection precision is improved; after lubricating oil detection is finished, the viscosity tube can be directly cleaned through cooperation of the cleaning assembly and the pretreatment assembly, and meanwhile, the inner wall of the viscosity tube is dried by means of heat of the temperature adjusting mechanism, so that the operation efficiency is improved, the occupied space of equipment is reduced, and the maintenance cost is reduced.

The invention discloses a microbial culture device for medical examination, which comprises a cylinder body, a storage cavity is arranged at the upper end of the cylinder body, a cover body is arranged in the storage cavity, a through hole is formed in the cover body, a sealing cover is arranged at the through hole, a support frame and a lifting mechanism are arranged in the storage cavity, the support frame is used for placing a culture dish, and the lifting mechanism can push the culture dish out of the through hole. A liquid heating assembly is arranged at the bottom of the barrel, a first water channel is formed in the side wall of the storage cavity, a second water channel is formed in the cover, the liquid heating assembly communicates with one end of the first water channel, the other end of the first water channel communicates with one end of the second water channel, and the other end of the second water channel communicates with the heating assembly. The supporting frame, the lifting mechanism and the liquid heating assembly are all electrically connected to the control panel. The culture dishes on the supporting section frames extend out of the through holes with smaller openings through the lifting mechanisms, so that the heat loss can be reduced under the condition of water bath heating, and the temperature balance is ensured.

The invention discloses a desktop type water bath high-low temperature exchange device capable of automatically replenishing water, which relates to the field of laboratory test equipment and comprises a high-temperature pool, a low-temperature pool and a sample transfer mechanism arranged between the high-temperature pool and the low-temperature pool, the high-temperature pool and the low-temperature pool are each provided with one automatic water supplementing system, and each automatic water supplementing system comprises a detection unit used for detecting the water level, a controller and a water supplementing execution unit controlled by the controller. According to the automatic water supplementing system, through the synergistic effect of the detection unit, the controller and the water supplementing execution unit, precise closed-loop control over the water level of the high-low-temperature water pool is achieved. The system can monitor the water level change in real time, automatically complete water replenishing operation, ensure that the water level is always maintained in a preset range in the whole experiment process, realize long-time unattended continuous testing, and improve the automation degree and the operation reliability of equipment.

The present application relates to the technical field of electric heating constant temperature water bath, disclose a kind of electric heating constant temperature water bath for replacing water liquid, comprising: kettle body, with electric heating wire and groove plate, groove plate distribution has liquid inlet hole, drain pipe, one end is fixedly installed on kettle body;Replacement box is provided with containing cavity, replacement box and the other end of drain pipe are rotatably connected, replacement box is opened with first through-hole;When replacement box is in initial state, the bottom surface in replacement box and the bottom surface in kettle body are flush, first through-hole is located on the side wall in the height direction of replacement box body;Replacement box is rotated to first rotating state, the bottom surface of containing cavity is lower than the bottom surface of containing groove, first through-hole is located at the highest point of replacement box;When replacement box is rotated to second rotating state, kettle body is drained through first through-hole;Floating plate and liquid inlet hole are one-to-one corresponding, when replacement box is rotated to first rotating state, floating plate blocks liquid inlet hole.The present application can replace water liquid safely during experiment.

SiCl4 stable evaporation supply device based on continuous silicon infiltration method for preparing high silicon steel thin strip belongs to the technical field of high silicon steel preparation, and comprises a SiCl4 evaporation tank, a constant temperature water bath box, a SiCl4 liquid supplement tank, an inert gas input pipe, a SiCl4 liquid supplement pipe and a pressure balance pipe; the SiCl4 evaporation tank is immersed in the constant temperature water bath box; the SiCl4 liquid supplement tank is located above the SiCl4 evaporation tank, the liquid outlet at the bottom of the SiCl4 liquid supplement tank is communicated with the inside of the SiCl4 evaporation tank 1 through the SiCl4 liquid supplement pipe, the gas pressure balance port at the top of the SiCl4 liquid supplement tank is communicated with the inside of the SiCl4 evaporation tank through the pressure balance pipe, the lower end of the pressure balance pipe is flush with the upper limit of the SiCl4 liquid in the SiCl4 evaporation tank; the pressure balance pipe outside the SiCl4 evaporation tank is coaxially sleeved with a liquid level fluctuation isolation sleeve; the lower end of the pressure balance pipe is dynamically matched with the rising and falling of the SiCl4 liquid surface, the dynamic liquid supplement of the SiCl4 liquid in the SiCl4 evaporation tank is realized, the continuous stability of the SiCl4 liquid surface is realized through the dynamic liquid supplement, and the device has the characteristics of simple structure, easy operation, high safety and low cost.

The utility model discloses a temperature control color difference prevention plate stirrer for artificial stone plate production, which belongs to the technical field of artificial stone plate production equipment and comprises a water bath thermotank, a support, a material mixing tank, a stirring motor, a stirrer and a temperature regulation and control machine. The water bath constant-temperature box is communicated with the temperature regulation and control machine through a water circulation pipeline, the temperature regulation and control machine drives circulating water to flow in a circulation system formed by the water bath constant-temperature box, the water circulation pipeline and the temperature regulation and control machine through a water pump, and the circulating water is regulated and controlled to be in a constant-temperature state; a feeding pipe is arranged at the top of the mixing tank, and the stirring motor is arranged at the top of the feeding pipe and connected with the stirrer; and a discharge pipe is arranged at the bottom of the mixing tank. The temperature regulating and controlling machine is used for heating circulating water, the temperature in the material mixing tank can be effectively controlled within a preset range, and therefore color difference of plates is effectively prevented, the quality of the plates is ensured, particularly, the material mixing tank is arranged in the water bath constant temperature box, the material mixing tank is fully wrapped by water in the water bath constant temperature box, and the temperature control effect is better.

The invention provides an acoustic emission test platform for multiple corrosion of metal in a complex ammonia environment and a use method of the acoustic emission test platform. The acoustic emission test platform comprises a corrosion medium configuration system, a reaction system, an electrochemical test system and an acoustic emission test system. The corrosive medium configuration system is used for accurately controlling the input of liquid ammonia, impurity gas and solution through a valve and a flow meter; the reaction system adopts constant-temperature water bath heating and magnetic stirring and is integrated with a temperature-pressure integrated sensor; the electrochemical testing system realizes corrosion promotion and monitoring through a three-electrode structure; the acoustic emission testing system captures corrosion signals in real time through a magnetic force fixing sensor. The sample bracket supports a multi-sample parallel contrast test, and can simulate a horizontal or vertical corrosion scene of a bottom plate and a wall surface of the storage tank. The method can realize conjoint analysis of multiple corrosion mechanisms, provides data support for corrosion rate modeling and life prediction, and is suitable for detection of complex corrosion environments such as ammonia, hydrogen and carbon dioxide.

The utility model relates to the technical field of oil removal agent production, in particular to a towel gourd sugar removing agent production preheating device which comprises a material conveying barrel, an auger is movably connected to the left side of the inner wall of the material conveying barrel, a transmission box is fixedly connected to the right side of the material conveying barrel, and a water bath barrel is arranged in the middle of the outer wall of the material conveying barrel in a sleeved mode. An adjusting box is fixedly connected to the left side of the upper portion of the water bath barrel, a control table is fixedly connected to the left side of the front portion of the adjusting box, a conveying mechanism is arranged in the transmission box, and an adjusting mechanism is arranged in the adjusting box. According to the utility model, the conveying and heating of the degreasing agent and the adjustment of the heating area are realized, and the high efficiency and the adjustability of the device are improved.

The utility model discloses a safety interlocking device for vaporization of low-temperature liquid oxygen, liquid nitrogen and liquid argon, and relates to the technical field of vaporization equipment. The device comprises a vaporizing tank, a DCS (Distributed Control System), a buffer pressure tank and an exhaust pipeline, wherein a material coil pipe and a steam coil pipe are arranged in the vaporizing tank; a water bath layer is arranged in the vaporizing tank; a steam inlet pipe connected with the steam coil pipe is arranged at the top of the vaporizing tank, a steam regulating valve is arranged on the steam inlet pipe, and a material inlet pipe connected with the material coil pipe is arranged at the bottom of the vaporizing tank. According to the utility model, through the design of the DCS control system, the steam regulating valve, the liquid pump, the liquid level sensor, the in-tank temperature sensor and the pipe body temperature sensor are connected with the DCS control system, when the temperature sensors detect temperature deviation, timely and safe interlocking control can be realized; safety accidents caused by pipeline leakage in the vaporization tank can be monitored, and the safety of vaporization equipment is greatly improved.

The utility model relates to the technical field of water bath loading boxes, and discloses a water bath reagent container loading box which comprises a shell, a storage box is installed on the inner wall of the shell, a small box is arranged in the storage box, a first sliding rail is arranged on the top wall of the storage box, and a second sliding rail is arranged in the middle of the inner wall of the storage box. A first sliding rod is slidably connected to the interior of the second sliding rail, a rotating rod is slidably connected to the outer wall of the first sliding rod, a small box is arranged on the top wall of the rotating rod, a second sliding rod is slidably connected to the inner wall of the first sliding rail, and a clamping rod penetrates through the top wall of the second sliding rod; the left side of the inner wall of the clamping rod is fixedly connected with a spring. According to the utility model, the clamping rod is pulled backwards, the fixed rod can be taken out from the second sliding rod, and the clamping rod is clamped by the second sliding rod due to the spring in the clamping rod, so that the clamping rod rebounds, the space can be reasonably utilized, and the waste of the space is avoided.

The utility model discloses a multifunctional ice and hot water bath magnetic stirring device, and belongs to the technical field of experimental equipment. A multifunctional ice and hot water bath magnetic stirring device comprises a magnetic stirrer provided with a rotating speed switch adjusting knob and a heating switch adjusting knob. The liquid containing part is arranged on the magnetic stirrer; the temperature sensor is connected to the magnetic stirrer through a first supporting piece; the clamp is connected to the magnetic stirrer through a second supporting piece; according to the utility model, the magnetic stirrer, the temperature sensor, the refrigeration cabinet and the water bath box B are matched for use, so that the device can be used for heating and stirring or cooling and stirring a sample solution in a glassware more safely, and great convenience is brought to the operation of experimenters; moreover, the stirring speed of the sample and the temperature of the water bath can be more accurately controlled, so that the stirring effect of the device on the sample is improved.