407 results about "Water baths" patented technology

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 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 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 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 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.

This invention relates to the field of spraying equipment technology and discloses a multi-component precise proportioning mixing device for spraying, including a main agent tank, a curing tank, a transparent mixing tank, and an intelligent formula management and control system. The main agent tank is used to store the main agent, the curing tank is used to store the curing agent, and the transparent mixing tank is used to remix the initially mixed main agent and curing agent. Both the main agent tank and the curing tank are equipped with jacketed water bath constant temperature tanks on their outer walls. Circulation inlets are provided on both the top and bottom sides of the jacketed water bath constant temperature tanks. Liquid level sensors are installed through the top side of both the main agent tank and the curing tank. Viscosity drift is eliminated through the tank water bath and pipeline insulation, ensuring servo metering accuracy. A three-stage series mixing path is adopted to sequentially achieve pre-dispersion, deep stirring, and final homogenization, solving the problems of uneven dispersion at high proportions and insufficient mixing at high viscosity, and improving the consistency of coating curing.

This utility model relates to the field of laboratory equipment technology, specifically a fixing device suitable for various sizes and types of glass containers. It includes a support frame, a base, fixing holes, fixing rods, and iron clamps. The iron clamps are detachably connected to the fixing rods via cross clamps. In use, select appropriate hole positions according to the bottom dimensions of the glass container, connect the four fixing rods to the fixing holes in the base, and then place the glass container within the area enclosed by the four fixing rods. This prevents the glass container from sliding and tipping over during ultrasonic or water bath heating. For glass containers with narrow necks, first adjust the height of the iron clamps on the fixing rods using the cross clamps, then secure the iron clamps to the neck of the glass container for experimental operation. This utility model solves the problem that existing fixing devices can only fix one size and type of glass container, failing to accommodate multiple glass containers simultaneously, resulting in low efficiency and poor versatility of glass container racks.

The utility model discloses a kind of heat preservation boxes for melting solid barrelled material, belong to fine chemical equipment device technical field.A kind of heat preservation box for melting solid barrelled material, including box, the box is rotatably connected with lid, further include: side annular heating pipe, install on the side wall of the box inside;Bottom heating coil, install on the bottom of the box, the side annular heating pipe is communicated with bottom heating coil, and the box is provided with for steam to enter and discharge pipeline;Through steam to enter side annular heating pipe and bottom heating coil, the temperature in the box can be promoted;The utility model provides a kind of heat preservation box for melting solid barrelled material for chemical enterprise, it is convenient to use, can set different temperature control according to the temperature required by melting material, solve the problem of traditional water bath heating tank and the problem that the smell generated cannot be collected and handled with water vapor overflow.

The application discloses a valve micro-leakage detection method and device based on acoustic response analysis. The method comprises the following steps: applying an active acoustic excitation signal to a valve in a sealed state; synchronously collecting acoustic wave response signals generated by excitation through multiple acoustic sensors; extracting acoustic characteristic parameters such as amplitude variation, phase variation and spectral energy; comparing with a no-leakage reference sound field model to determine micro-leakage. The leakage source is located by using a beam forming algorithm, and a characteristic vector composed of amplitude variation, phase variation, spectral energy, MFCC and kurtosis is constructed, which is input into a convolutional neural network model to identify leakage causes such as sealing surface wear, sealing pad damage or micro-cracks. The detection system of the application comprises an excitation control module, a collection module, a processing module and a judgment module. The method does not require a water bath, has high sensitivity and is suitable for automatic production detection.

The utility model provides a constant-temperature water bath box for film flushing and a film flushing machine. The constant-temperature water bath box comprises a box body, a control assembly and a refrigeration module. The box body comprises a containing groove used for containing a temperature conduction medium. And at least part of the liquid medicine tank containing the liquid medicine can be immersed in the temperature conducting medium. The control assembly comprises a shell and a main control board arranged in the shell. The shell is at least partially contained in the containing groove. The refrigeration module is electrically connected with the electric control board. The refrigeration module is arranged on the peripheral wall corresponding to the containing groove, and the refrigeration module can generate cold energy after being powered on so as to conduct the cold energy to the temperature conduction medium through the peripheral wall, so that the temperature of the temperature conduction medium is reduced. According to the constant-temperature liquid heating machine, the temperature of liquid medicine such as developing liquid and fixing liquid contained in the liquid medicine tank is reduced in a mode similar to water bath cooling, and therefore the temperature of the liquid medicine is controlled. Compared with manual control of the temperature of the liquid medicine, the liquid medicine temperature control device is convenient and safe to operate.

This invention relates to the field of pressure resistance testing of water-jet loom parts, specifically to a pressure resistance testing device for ceramic plungers in water-jet looms. It includes a testing platform with a water tank on one side. A lifting frame that can slide vertically back and forth is located above the testing platform. A pressure testing head for applying axial pressure to the ceramic plunger is located in the middle of the lifting frame. High-speed cameras for capturing the entire deformation and fracture process of the ceramic plunger are symmetrically arranged on both sides of the pressure testing head. A pneumatic slide is located on the upper surface of the testing platform, and an electric clamp is located in the middle of the pneumatic slide. A transparent water bath tube is coaxially located above the electric clamp, and the clamping end of the electric clamp extends into the transparent water bath tube. The lifting frame also includes a rinsing and water replenishment mechanism, including a corrugated pipe connected to the water tank, a liquid storage box, and a sliding dropper. The liquid storage box stores a fluorescent penetrant. This device can simulate the actual working environment of the ceramic plunger, observe the microcrack propagation process in real time, and significantly improve the accuracy and reliability of the test results.

This invention belongs to the field of gas drainage borehole plugging technology, specifically relating to a device and method for visually evaluating the injectability and gas plugging performance of slow-setting or non-setting grouting materials in gas drainage boreholes. The device includes: a fracture simulation system, a slow-setting or non-setting grouting system, a nitrogen pressurization system, a data acquisition system, and a constant-temperature water bath system. This invention tests the injectability and gas plugging performance of slow-setting or non-setting grouting materials in different openings, angles, and bifurcated fractures by controlling different water bath temperatures. This enables a visual and quantitative evaluation of the injectability and plugging performance of slow-setting or non-setting grouting materials. By changing the fracture type, gas pressure, grouting pressure, and constant-temperature water bath temperature, this invention highly replicates the on-site gas drainage borehole plugging environment, improving the accuracy of evaluating the injectability and plugging performance of slow-setting or non-setting grouting materials. This helps reduce material development costs and improves the safety and economic benefits of gas drainage.

The invention relates to the technical field of air detection, and particularly discloses a method for measuring formaldehyde content in indoor air, which is used for measuring indoor formaldehyde gas by potentiometric titration and comprises the following steps: firstly, preparing a K2Cr2O7 standard solution, a Fe < 2 + > standard solution and a formaldehyde standard solution; secondly, taking a K2Cr2O7 standard solution as an absorption liquid of formaldehyde gas, adding sulfuric acid and distilled water, heating in a water bath, transferring into a gas sampler, and sampling air to obtain a sample collection liquid; and placing the sample collection solution in a water bath kettle, continuously heating, titrating the excess K2Cr2O7 and formaldehyde blank sample by using an automatic potentiometric titrator by using a Fe < 2 + > standard solution as a titrating solution, and calculating the content of formaldehyde in the air. The method disclosed by the invention is simple to operate and accurate in determination, the reaction speed can be increased, the reaction degree can be improved, the lowest detection limit can reach 0.006 mg / m < 3 >, and the method can be used for determining the indoor formaldehyde content. The problems that in the prior art, operation is tedious, the duration time is long, and the detection limit is too high are solved.

The application discloses a kind of anti-icing super-hydrophobic material preparation methods, with aluminum plate as substrate;First, blast furnace slag powder and steel slag powder are treated with hydrophobic modification, blast furnace slag powder and steel slag powder are mixed according to certain mass ratio, mixed powder and organic solvent A absolute ethyl alcohol are stirred in round bottom flask, after solution is fully mixed, organic solvent B seventeen fluorine decyl triethoxysilane is added and transferred to water bath heating tank water bath heating and stirring;Modified blast furnace slag-steel slag powder, organic solvent C butyl acetate are uniformly mixed according to 3:8 ratio, after reaction ten minutes, two-component polyurea is added drop by drop, and super-hydrophobic coating is obtained by drying.The present application uses blast furnace slag waste as main raw material, adds a small amount of steel slag to improve the wear resistance of coating, uses two-component polyurea as adhesive, uses modified-spraying two-step method, without large instrument equipment, and super-hydrophobic coating with excellent wear resistance is prepared simply and quickly.

The utility model provides novel steam curing equipment which comprises a curing box body, a heater, a bottom layer grate, a middle layer grate and an upper layer grate, the curing box body is divided into three parts through the bottom layer grate, the middle layer grate and the upper layer grate, and when a concrete product needs to be tested by using a water bath method, the heater is arranged in the curing box body. A concrete product is placed on the bottom layer grate, a water bath test is conducted on the concrete product through heated water, when steam needs to be used for testing the concrete product, the concrete product is placed on the upper layer grate at the moment, the water at the bottom of the curing box body is heated through the heater, and water vapor is generated; after water vapor passes through the middle-layer grate and the upper-layer grate, due to the second through holes formed in the middle-layer grate and the upper-layer grate, the water vapor can be more diffused, when the device is used, water bath and steam curing can be achieved at the same time, the applicability of the device is improved, and the working efficiency is higher.

The utility model provides a kind of efficient water bath type cooler, belong to cooling equipment technical field.It solves the problem that the filter screen structure is lacked on the pipeline of existing water bath type cooler, leading to water inflow carrying impurities, affecting use problem.This efficient water bath type cooler, including two water inlet pipes and the water outlet pipe between two water inlet pipes, two water inlet pipes and water outlet pipe are connected by valve pipe, valve pipe adopts tee structure, is water inlet end one and water inlet end two and water outlet end respectively, water inlet end one and water inlet end two are provided with filter assembly, and the filter area that is communicated with water outlet end is formed between two filter assemblies, filter assembly includes framework and the metal filter screen of integral molding with framework, the upper end transverse length of the longitudinal section of framework is less than its lower end transverse length, metal filter screen is inclined to set, and flange plate is fixedly connected on water inlet end one and water inlet end two.The utility model has the advantages of filtering function, and good filtering effect.

This invention discloses a simulated oxidation detection device and method for lead-acid battery casings, including a heating furnace, a beaker placed on the furnace, and an adjusting bracket placed on the side of the furnace. One end of the adjusting bracket extends above the beaker, and a temperature measuring element and a sample are connected to the adjusting bracket, with the temperature measuring element and the sample immersed in cooling water. During detection, the heating furnace is turned on, and cooling water from a workshop water bath is placed in the beaker, with the internal water temperature heated to a stable 40℃±1℃. Two prepared samples are taken: sample A is wrapped with a PE protective film, and sample B is without a film. They are connected to the bracket, with one end immersed in water, and continuously bathed for 24 hours. Finally, the two samples are compared with a control sample. Compared with existing technologies, this invention has a scientifically sound structure, is simple and convenient to operate, and can screen out batches of ABS granules with poor acid resistance and heat resistance at the material stage, preventing them from flowing into subsequent injection molding and battery assembly processes, thus eliminating the phenomenon of discoloration and mottling of the casing from the source.

The invention relates to a casting apparatus 14 and a machine 10 for producing a film. The casting equipment comprises a cooling roller 142, a leading-out roller 144 and a water bath 150. The cooling roller 142 is configured to cool the plastic melt extruded onto its surface to produce a film F. The extraction roller 144 is disposed downstream of the cooling roller 142 and is configured to detach the film F from the cooling roller 142. The cooling roller is at least partially arranged within the water bath 150 such that a point P at which the film is detached from the cooling roller 142 is located above the water line of the water bath. The cooling roller has a roller width BK, the drawing roller has a roller width BT, and the roller width BT of the drawing roller 144 is smaller than the roller width BK of the cooling roller 142.

The invention relates to the technical field of steel wire heat treatment, and particularly discloses a superfine steel wire water bath heat treatment method. A superfine steel wire water bath heat treatment method comprises the following operation steps that S1, a steel wire is heated to 920-940 DEG C after being cleaned, heat preservation is conducted for 30-60 min, the steel wire is taken out of a furnace and immersed in a water cooling medium to be cooled to 200-250 DEG C, the temperature of the water cooling medium is controlled to be 20-30 DEG C, and the cooling speed is controlled to be 15-18 DEG C / s; and S2, the cooled steel wire is placed in a radiant heat insulation box at the temperature of 750-800 DEG C, and the heat preservation time is 1-2 h. By adopting the water bath heat treatment method, the sorbite grain size of the obtained superfine steel wire is smaller than 14 micrometers, the lamellar spacing is smaller than 0.1 micrometer, the area reduction rate is larger than or equal to 40%, the tensile strength is larger than or equal to 4550, the number of torsion turns is 41-55 r, the structure is more uniform and compact, and high strength and toughness are achieved.

The application discloses a self-adaptive ice-water bath sample rack and relates to the technical field of laboratory equipment. The self-adaptive ice-water bath sample rack comprises a supporting frame, a first partition plate and a second partition plate, the supporting frame is in a U-shaped structure formed by one bottom plate and two side plates, the first partition plate is slidably connected between the two side plates and is fastened through fasteners, a first through hole is formed in the first partition plate, a plurality of first elastic valves are arranged around the first through hole, the plurality of first elastic valves enclose a first clamping space, the second partition plate is installed between the two side plates and is located between the first partition plate and the bottom plate, a second through hole is formed in the second partition plate, a plurality of second elastic valves are arranged around the second through hole, and the plurality of second elastic valves enclose a second clamping space; wherein the inner diameter of the first clamping space is different from the inner diameter of the second clamping space, so that the first elastic valves and the second elastic valves can be cooperatively matched to self-adaptively clamp sample tubes with different pipe diameters.

The utility model relates to the field of water bath constant temperature oscillator especially relates to a kind of high-efficiency stirring device for ultrasonic water bath constant temperature oscillator, including cabinet, the top outer wall one end of cabinet is equipped with locating groove, and cabinet is located at the heating groove center and is equipped with, the outer wall of one side of cabinet is equipped with drive groove, and the top inner wall of drive groove is equipped with oscillation component, heater and ultrasonic generator are installed in the inner wall of the bottom of the heating groove of cabinet, and temperature sensor is installed in the inner wall of the bottom of cabinet.The utility model starts drive motor and drives the rotation of main shaft and impeller, keeps the uniformity of heater heating, keeps the uniformity of heat transfer;After ending culture, install the top cover in the locating groove of cabinet, start the disinfection lamp in the inner wall of top cover and carry out disinfection and kill in the inner wall of the heating groove of cabinet, facilitate subsequent use.

The application provides a synthetic leather hydrolysis resistance accelerated test water bath device, and relates to the technical field of water bath devices.The device comprises a heating water bath and beakers, a water bath tank is formed in the top of the heating water bath, detachable equal division fixing mechanisms are arranged in the water bath tank, the internal alkali solution capacity of multiple groups of beakers can be automatically equalized, operation errors generated by manual solution preparation are eliminated, and the reaction conditions of test samples in each group are consistent; meanwhile, the mechanisms can position and fix the multiple groups of beakers, and unify the water bath placement height of the beakers, so that the problems of beaker deviation and dumping caused by water bath fluctuation and buoyancy are reduced, the heating and hydrolysis environment of samples in each group is completely consistent, the accuracy, stability and comparability of parallel test data are greatly improved, in addition, the device is convenient to disassemble and assemble, has high universality, the water bath temperature can be stabilized by cooperating with a cover plate, and the overall test efficiency is improved.

The invention discloses a well wall rock stability test device and test method, and relates to the technical field of rock mechanics tests, the well wall rock stability test device comprises an annular flow channel simulation cabin, a rock core, a clamping left side end cover, a clamping right side end cover and a compression clamping rod; the rock core is arranged in the annular runner simulation cabin, the left end of the rock core is sealed by the clamping left side end cover, and the right end of the rock core is sealed by the clamping right side end cover; the compression clamping rod is connected to the clamping left side end cover through a supporting rod and is used for applying axial pressure to the rock core; an annular flow channel simulation cabin, a rock core, a clamping left side end cover, a clamping right side end cover and a compression clamping rod are arranged, and a supporting rod is matched to realize reliable axial loading of the rock core; a mixing tank, a jacket, a water bath, a stirrer and a first thermometer are used for accurately regulating and controlling the temperature and components of injected fluid, an air bath, an electric heater and a second thermometer are combined for simulating the real underground stratum thermal environment, and controllable injected liquid backflow is constructed through a plunger pump, a third ball valve, a twelfth ball valve, a fifth ball valve, a sixth ball valve and a seventh ball valve.

The utility model discloses an energy-saving VOCs (Volatile Organic Compounds) purification processor for a shoemaking workshop, which relates to the related field of environmental protection, and comprises a large particle filter assembly, a small particle filter assembly, a purifier assembly and a cooling assembly, the large particle filter assembly is provided with a dust collection box with a liquid level detection function and a filter screen for primary filtration; the small particle filter assembly is combined with a water bath, a filter screen and an electrostatic adsorption mechanism capable of vibrating and cleaning to perform secondary fine filtration; the purifier assembly performs deep purification through activated carbon adsorption and noble metal catalytic combustion; according to the key cooling assembly, a cooler is used for cooling liquid in a cooling box, heat exchange is carried out through a heat conduction gas conveying copper frame and purified high-temperature gas, exhaust cooling is achieved, cooling can be carried out when the purified gas is exhausted through the device, the temperature around the device cannot be too high, and workers are prevented from feeling uncomfortable.