42results about How to "Full circulation" patented technology

The invention discloses a valve drilling and boring device, and relates to the technical field of drilling devices, through use of a protection assembly, a supporting base is included, splashed cooling oil and metal filings can be blocked by the inner wall of a protection shell, and due to the fact that the cooling oil is sprayed to the inner wall of the protection shell and the area of the inner wall of the protection shell is large, the surface area is increased when the cooling oil is spread; the boring frame rotates to drive an oil scraping rod to rotate, the oil scraping rod scrapes the cooling oil and metal filings adhered to the inner wall of the protective shell, the cooling oil and the metal filings fall down from an oil discharging opening, and the effects of accelerating heat dissipation of the cooling oil and accelerating circulation of the cooling oil are achieved; the situation that the temperature of the cooling oil is too high due to the fact that the cooling oil is directly recycled and heat dissipation is difficult in the traditional situation is avoided, the cooling oil is sprayed on the inner wall of the protection shell to increase the heat dissipation area, and the cooling oil is scraped and recycled through the oil scraping rod after heat dissipation, so that it is guaranteed that the cooling oil can be fully dissipated; and the cooling oil is actively scraped and recycled to accelerate the circulation of the cooling oil.

The invention discloses an electricity, gas and suspension three-composite lithium ore roasting kiln system and process. The alpha-type spodumene is converted into the beta-type spodumene through constant-speed drying and preheating of a suspension preheating device, primary roasting of an electric heating kiln and secondary roasting of a gas kiln. Compared with traditional transformation roasting of spodumene in a rotary kiln with natural gas as fuel, the method has the advantages that the temperature of spodumene is increased to 600-800 DEG C through preheating of the suspension preheating device and one-time roasting of the electric heating kiln, only the rear-section temperature rising work needs to be completed in the gas kiln, a large amount of natural gas resources can be saved, meanwhile, emission of carbon dioxide is reduced, and the production cost is reduced. The device accords with the national carbon neutralization policy, and is very suitable for being used in areas which are lack of natural gas, rich in electric power reserve or low in electricity price and high in environmental protection requirement.

The invention relates to a perfluorotributylamine preparation device and a perfluorotributylamine preparation process, and belongs to the field of perfluorotributylamine preparation and fluid working systems, in the process, the mass ratio of tributylamine to hydrogen fluoride is (80-100) kg: (200-230) k, the hydrogen fluoride is firstly added into an electrolytic bath, and then the tributylamine is added; air in the electrolytic bath is replaced by nitrogen before reaction, and the nitrogen is subjected to primary mixing to prepare an electrolyte; then low-voltage current is conducted for an electrolytic replacement reaction, the reaction pressure is controlled to be 0.1-1.5 MPa, and the temperature is controlled to be-10 DEG C to 30 DEG C; the invention provides a perfluorotributylamine preparation method, by controlling the reflux distribution and single circulation path of circulation liquid, products with large specific gravity are prevented from being deposited in pipeline equipment, the reaction activity and the fluorination efficiency are improved, the conversion rate is improved, an electrolytic fluorination method is adopted, the reaction is mild and controllable, the process is simple, the efficiency is high, impurities are few, and the impurities are easy to separate, and the scheme further provides a perfluorotributylamine preparation device. The preparation method is adapted to the preparation process, and the crude perfluorotributylamine product with the purity of more than 80% is obtained under the conditions of simple reaction raw materials and simple and convenient reaction device.

This invention discloses an acid cleaning fixture for a 166MHz quarter-wavelength superconducting cavity. The acid cleaning fixture comprises a large-tube side fixture, a small-tube side combined fixture, and an acid flow guiding fixture. The large-tube side fixture serves as the acid inlet or outlet of the superconducting cavity system. One end of the fixture is sealed to the large-tube flange of the superconducting cavity system, and the other end is connected to the acid cleaning equipment via a first connecting flange and a connecting pipe. The small-tube side combined fixture also serves as the acid inlet or outlet of the superconducting cavity system. One end of the fixture is sealed to the small-tube flange, the coupler flange, and the flanges of each rinsing port of the superconducting cavity system. The other end is connected to the acid cleaning equipment via a second connecting flange and a pipeline. The acid flow guiding fixture is located inside the superconducting cavity system and communicates with the large-tube side fixture. It guides the flow of acid entering the superconducting cavity system through the large-tube side fixture and balances the acid flow rate. This invention significantly improves the acid cleaning effect of the superconducting cavity and ensures smooth bubble removal.

The application discloses a kind of sugar melting pots, including kettle body, mixing and turning mechanism, reverse mixing mechanism, lifting and scraping mechanism, crushing mechanism and driving mechanism;Kettle body is barrel-shaped, and circular fixed plate is fixed in its inner cavity upper portion;Mixing and turning mechanism is below fixed plate, for mixing sugar water inside kettle body, and turning material at bottom.The application adopts first mixing blade to add reverse peripheral lifting and mixing second mixing blade, to form bidirectional three-dimensional convection mode, central axial flow and peripheral reverse revolution flow form strong shear turbulent zone in kettle body, cooperate with the lifting movement of eccentric sub-shaft to realize forced mixing between liquid layer, can better eliminate concentration stratification and temperature stratification;Again with the turning shovel of bottom bevel gear transmission, make sugar solution in kettle body form relatively sufficient circulation, sugar dissolving speed is faster, uniformity is higher.

The present invention relates to the technical field of gel stirring devices, and in particular to a device for stirring an absorption-promoting anti-aging stem cell gel, comprising a tank body, wherein a circulating mixing device for mixing gel is arranged on the inner side of the tank body; the circulating mixing device comprises a load-bearing plate and a mixing tube inserted therein, and a circulating mechanism for driving gel circulation is arranged at the four corners of the load-bearing plate, and a driving mechanism is arranged between the four circulating mechanisms; the circulating mechanism comprises a cylindrical cavity opened inside the load-bearing plate and having an opening on one side, and an arc-shaped shell fixed at the position of the corresponding cylindrical cavity on the outer side of the load-bearing plate. The present invention can evenly draw the stem cell gel located at a non-central position inside the tank body to the central position through the cooperation of multiple circulating mechanisms in the circulating mixing device, so that the stem cell gel at each non-central position fully collides and evenly mixes at the central position, thereby greatly improving the mixing effect, and will not cause damage to the stem cells.

The invention relates to the technical field of mixer trucks, in particular to stirring and mixing equipment of a feeding mixer truck, which comprises an assembly base, a support frame, a support sleeve plate and a screening bin, the mixing bin is fixedly connected to the other end of a support leg, one end of a driving arm sequentially penetrates through the screening bin and the bottom of the inner side of the mixing bin and is fixedly connected with the output end of a driving device, and the other end of the driving arm is fixedly connected with the output end of the driving device. The stirring assembly is installed on the driving arm and located in the mixing bin, one ends of the multiple scraping plates are fixedly connected to the outer wall of the driving arm in a circumferential array mode, the bottoms of the scraping plates abut against the bottom of the inner side of the screening bin, and the water adding assembly is installed on the top of the assembling base and connected with the end of the driving arm. According to the stirring and mixing equipment of the feeding mixer truck, disclosed by the embodiment of the invention, the whole stirring and mixing equipment not only improves the mixing efficiency, but also ensures the uniformity and stability of a final product. And the requirements for treating different materials can be met, and high efficiency and reliable quality in the production process are ensured.

The utility model relates to a double-spiral instant freezer which comprises a storeroom, a conveying belt, a first spiral support and a second spiral support are arranged in the storeroom, the first spiral support and the second spiral support are arranged side by side, a feeding port is formed in the first spiral support, and a discharging port is formed in the second spiral support. The conveying belt sequentially passes through the feeding port, the first spiral support, the second spiral support and the discharging port, an evaporation assembly is arranged between the first spiral support and the second spiral support, a plurality of circulating fans are arranged at the air outlet end of the evaporation assembly, and air guide channels are arranged between the circulating fans and the first spiral support and between the circulating fans and the second spiral support correspondingly. The air guide channel comprises a first air guide plate and a second air guide plate which are arranged on the evaporation assembly. According to the utility model, the air guide channel is arranged between the circulating fan and the two spiral brackets, so that cold air in the storehouse can be effectively guided, the cold air can be fully circulated in the storehouse, and the overall freezing efficiency is improved.

The invention relates to a continuous production device and method of perfluorotributylamine, and belongs to the field of perfluorotributylamine preparation and fluid working system. In the process, tributylamine and hydrogen fluoride are in a mass ratio of 24-30kg:200-230kg, hydrogen fluoride is first added to an electrolytic cell, and then tributylamine is added; before the reaction, the air in the electrolytic cell is replaced by nitrogen, and the air is replaced by nitrogen for preliminary mixing and preparing electrolyte; then a low-voltage current is passed to carry out an electrolytic replacement reaction, and the reaction pressure is controlled at 0.1-1.5MPa and the temperature is controlled at 5-15°C; by controlling the reflux distribution of the circulating liquid and the single circulation path, the product with a large specific gravity is deposited in the pipeline equipment, the reaction activity, the fluorination efficiency and the conversion rate are improved, and the electrolytic fluorination method is adopted, the reaction is mild and controllable, the process is simple, the efficiency is high, the impurities are few and easy to separate, and the scheme also provides a perfluorotributylamine preparation device, which is adapted to the preparation process thereof, and a perfluorotributylamine crude product with a purity of more than 80% is obtained under the conditions of simple reaction raw materials and simple reaction device.

The utility model relates to the technical field of smoked chicken, and the utility model provides a smoked chicken vehicle, it includes support rod, the side surface fixed connection of support rod has side pole, the side surface of support rod is provided with interval smoking cleaning assembly, interval smoking cleaning assembly includes cylinder rod, one end fixed connection of cylinder rod is in the side surface of side pole, the surface fixed connection of cylinder rod has frame pole, the side surface of support rod is provided with screw groove, the side surface of support rod is provided with mounting rod. The utility model still includes convenient to move subassembly, convenient to move subassembly includes gyro wheel, the top of gyro wheel setting is in the bottom end of support rod, the side surface fixed connection of support rod has cross frame, the inner wall sliding connection of cross frame has slide. Through above technical scheme, solved the technical problem that cannot use physical mode to interval between the roast chicken and the roast chicken in prior art.

The invention relates to a horizontal tank stirring tank and a stirring method thereof. The horizontal tank stirring tank comprises a tank body erected on the ground, the top of the tank body is open, and the bottom of the tank body is arc-shaped and provided with a discharge port; cavities are formed in the side wall and the bottom wall of the tank body, temperature control structures are contained in the sides, close to the inner wall of the tank body, of the cavities, heat preservation materials are contained in the sides, close to the outer wall of the tank body, of the cavities, the temperature control structures are arranged on the inner wall of the tank body in a winding mode layer by layer at intervals, and the inner bottom wall of the tank body is bent outwards and extends to form recesses which correspond to and penetrate through the intervals of the temperature control structures. A stirring structure is rotationally connected in the tank body and comprises a spirally extending stirring roller, sealing structures are arranged at the two ends of the stirring roller and rotationally connected to the tank body, a driving structure is arranged at one end of the stirring roller, a plurality of ridges corresponding to the inner side wall of the tank body extend from the outer edge of the stirring roller, and cavities are formed between the ridges; the cavity can be communicated with a recess formed in the inner bottom wall of the tank body. The device has the effects of improving the contact between materials in the tank body and the temperature control system, improving the circulation efficiency and improving the heat exchange rate.

The utility model discloses a kind of tobacco essence and flavouring agent stirring devices, including stirring tank, be equipped in the stirring rod of the stirring tank, be equipped in the stirring unit on the stirring rod;The included angle of the centre line of the stirring rod with the centre line of the stirring tank is acute angle, the stirring rod drives the stirring unit rotation, to stir the material in the stirring tank.By setting the inclined stirring rod in the stirring tank, further expand the stirring coverage area, eliminate stirring dead angle, reduce edge material deposition, shorten the time required for stirring, while reducing the energy loss and composition damage caused by local concentration of shear force, improve stirring efficiency and stirring effect.

The utility model discloses a centrifugal tube placing rack for water bath inactivation plasma, including the frame main body of integral cuboid, the frame main body includes bottom plate, top plate and four stand, four stand rectangular distribution between bottom plate and top plate, and the both ends of stand are fixedly connected with bottom plate and top plate respectively, the upper surface of bottom plate is equipped with a plurality of positioning recess for positioning the bottom part of centrifugal tube, and the elastic clamping plate of horizontal distribution is movably arranged between bottom plate and top plate, and the elastic clamping plate is provided with the limiting through -hole corresponding with each positioning recess, the adjacent two stand form the guide sliding slot along the vertical distribution, and the edge of elastic clamping plate is respectively with four stand side surface elastic abutment and elastic clamping plate and guide sliding slot sliding connection. The utility model improves the safety, adaptability of centrifugal tube placement in the process of plasma inactivation, can guarantee that plasma is heated evenly, has improved inactivation effect and efficiency.

The present invention discloses an eye massage and moxibustion instrument, including a glasses frame and a strap. The front end of the glasses frame is provided with a front cover, the glasses frame is provided with a placement hole, a moxibustion medicine tank is provided in the placement hole, the moxibustion medicine tank is provided with a plurality of air holes, the front cover is provided with a plurality of air inlet holes, the moxibustion medicine tank is provided with a cover, an eye fumigation groove is provided on the side of the glasses frame facing the air holes, the eye fumigation groove is evenly arranged with air outlet holes, the glasses frame is provided with an elastic vibration column, and the head of the elastic vibration column is inlaid with a medical magnet. The device combines the three functions of moxibustion, massage, and magnet together. Moxibustion dredges the blocked eye veins and discharges the eye garbage and toxins blocked in the deep meridians. Combined with the eye elastic vibration column, the eye acupuncture points are accurately massaged and the conductive force of moxibustion is used to fully relax the eyeballs and eye muscles. At the same time, the magnet plays a role, better forms a microcirculation magnetic field, and promotes eye blood circulation.

The utility model discloses an energy-saving farmland irrigation device, which relates to the technical field of irrigation devices and comprises a liquid storage barrel, a liquid pumping pipe is arranged at the bottom of the liquid storage barrel, and the inlet end of the liquid pumping pipe is attached to the bottom wall of the liquid storage barrel; the first arc-shaped flow guide part is fixed to the inner wall of the liquid storage barrel and located on one side of the liquid pumping pipe, and the outer wall curved surface of the first arc-shaped flow guide part is tangent to the pumping direction of the liquid pumping pipe; the water pump communicates with the liquid storage barrel through a liquid pumping pipe, and the water outlet end is connected with a three-way valve; the liquid return pipe is connected to an outlet end of the three-way valve and extends to the top end in the liquid storage barrel; the first arc-shaped flow guide part is fixed at the outlet end of the liquid return pipe, the second arc-shaped flow guide part is fixed at the outlet end of the liquid return pipe, the second arc-shaped flow guide part and the inner wall of the liquid storage barrel are arranged at an interval, and the curved surface of the outer wall of the second arc-shaped flow guide part is tangent to the discharge direction of the liquid return pipe. And the structure of the swirling flow field is optimized, so that the liquid can be fully circulated and mixed in the liquid storage barrel.

The utility model belongs to the technical field of energy storage equipment, and discloses an energy storage container which comprises a container body, energy storage assemblies and dehumidification assemblies, and the energy storage assemblies are arranged in the container body and are arranged in multiple rows in the first direction; at least two rows of dehumidification assemblies are arranged, each row of dehumidification assemblies comprises at least two dehumidification assemblies distributed at intervals in the first direction, the uniformity of the humidity of airflow in the box body in the first direction can be ensured, and the multiple rows of energy storage assemblies distributed in the first direction can be effectively dehumidified; the projections of the at least two rows of dehumidification assemblies on the horizontal plane are distributed in a staggered manner, so that the dehumidification areas of the two rows of dehumidification assemblies are prevented from being excessively overlapped, the two rows of dehumidification assemblies are dispersed, gas is ensured to circulate more fully, dehumidification dead angles are reduced as much as possible, and the uniformity of the gas in the box body during dehumidification is improved. When the container is in a humid environment or an environment where condensation is prone to being generated due to large temperature difference, it can be guaranteed that the energy storage assemblies in all the areas in the container body can be effectively dehumidified, and operation safety and reliability are improved.

The utility model discloses a kind of oil refining equipment, including frame, heating tank and filter tank are fixedly connected on the frame, the top of the heating tank is fixedly communicated with gas pipe, the top of the frame is fixedly connected with vacuum pump, the end of the gas pipe is fixedly communicated with vacuum pump, the bottom of the heating tank is fixedly communicated with first conveying pipe, first oil pump is fixedly connected on the frame, the end of the first conveying pipe is fixedly communicated with first oil pump, first oil pump is fixedly communicated with second conveying pipe, the end of the second conveying pipe is fixedly connected with three-way pipe, one outlet of the three-way pipe is fixedly communicated with filter tank, another outlet of the three-way pipe is fixedly communicated with oil outlet pipe.The utility model reasonably designs the circulation passage between processing container and filter container, cooperates oil pump to provide sufficient power, makes hydraulic oil fully circulate between both, ensure that heating dewatering is more thorough, impurity filtration is more sufficient.

The utility model relates to the technical field of cooling equipment, in particular to an efficient cooling device for resin plate production, which comprises a cooling box for photosensitive resin plate production, a refrigerating box is mounted at the top of the cooling box, an air conveying pipe is mounted at the top of the refrigerating box, and an air blower is mounted at the end of the air conveying pipe. According to the utility model, the cold air pipes are arranged in the cooling box in parallel, so that cold air cooled by the condensing coil can be directly conveyed to the photosensitive resin plate, the resin plate can be directly and quickly cooled, the cooling speed is increased, the cooling uniformity is ensured, the condition that the temperature of the resin plate is not uniform is avoided, and the service life of the photosensitive resin plate is prolonged. The semiconductor cooler embedded in the side wall of one end of the refrigeration box serves as a core component of the refrigeration system, low temperature can be generated quickly and efficiently, and a stable cold source is provided for the whole cooling device. The high efficiency and the stability of the semiconductor cooler ensure that the cooling device can continuously work for a long time.

The invention discloses a cabinet dehumidification device and a dehumidification method, and belongs to the technical field of dehumidification device.The cabinet dehumidification device comprises a water receiving box (1), vertical columns (2) which are vertically and upwards distributed at equal intervals are fixedly arranged at the corners of the top of the water receiving box (1), a fixing shell (3) and a top cover (4) are fixedly arranged on the inner walls of the vertical columns (2) respectively, and the fixing shell (3) is located at the bottom of the top cover (4); a PTC refrigeration sheet (9) is fixedly arranged on the inner wall of the bottom of the fixing shell (3), and an air inlet is formed in the bottom of the fixing shell (3). According to the cabinet dehumidification device, the PTC refrigeration sheet is adopted, the humidity in the cabinet can be rapidly reduced through the efficient moisture absorption and refrigeration functions of the PTC refrigeration sheet, and electronic components are prevented from being affected with damp. In addition, the energy consumption of the equipment is remarkably reduced through the optimized energy-saving technology and the intelligent control module, the efficient dehumidification is ensured, meanwhile, the green and environment-friendly requirements are met, and the energy waste is reduced.

The utility model discloses a moisture-proof prefabricated substation based on circulating ventilation, which comprises a prefabricated substation body, the top of the prefabricated substation body is provided with a partition shed, and a plurality of top air inlet turbulent flow assemblies are symmetrically arranged at the top of the prefabricated substation body at an inclined angle. The top air inlet turbulence assembly is arranged at the top of the prefabricated substation body, the four side air inlet ventilation assemblies are symmetrically arranged at side doors of the prefabricated substation body, and the bottom circulation exhaust assembly is arranged at the bottom of the prefabricated substation body. Airflow flows to all positions in the prefabricated substation body through airflow disturbance and convection flow, airflow dead angles are eliminated, local moisture accumulation in the prefabricated substation body is avoided, moist air in the prefabricated substation body is exhausted, and the obliquely-distributed guide plates can effectively prevent external bottom moisture from entering the prefabricated substation body, so that the moisture in the prefabricated substation body is effectively prevented from entering the prefabricated substation body. And the moisture-proof performance of the prefabricated substation body is improved.

The utility model discloses a seedling raising device for planting vegetables, and relates to the technical field of seedling raising devices. The device comprises a rectangular bottom plate, wherein a rotating mechanism and a waste water collecting mechanism are arranged on the rectangular bottom plate; two supporting frames are fixedly connected to the top of the rectangular bottom plate, a U-shaped frame is fixedly connected to the tops of the two supporting frames, the rotating mechanism comprises two rotating shafts rotationally connected to the inner wall of the U-shaped frame, and the left side of the rotating shaft located on the upper portion extends out of the U-shaped frame; and the wastewater collecting mechanism comprises a guide block fixedly connected to the top of the rectangular bottom plate. By arranging the rotating mechanism, the seedling raising device solves the problems that in the using process of an existing seedling raising device, due to the fact that illumination of partial areas of seedlings is too strong, illumination of partial areas is insufficient, the seedlings grow unevenly, the light-facing sides of stems grow fast, the backlight sides of the stems grow slow, the shapes of the seedlings are not regular, the photosynthesis efficiency of the seedlings is affected, and the seedling raising efficiency is affected. The overall growth and development are further influenced.

The utility model discloses a bath heater with dehumidification function belongs to bath heater field, including bath heater casing, the top fixedly connected with the top plate of bath heater casing, the one side of bath heater casing towards top plate is equipped with the cavity, the inside of cavity is equipped with the dehumidifier box, the top of top plate is equipped with the air inlet channel and the exhaust channel symmetrically, both sides of bath heater casing are equipped with the ventilation opening, this bath heater with dehumidification function, will the ventilation opening set in the both sides of bath heater casing, this avoids the phenomenon that fresh air just enters and is immediately discharged, ensures that air can be fully circulated in bathroom, improves the efficiency of air exchange, through setting up the dehumidifier box in the cavity of bath heater casing, and utilize the air in air inlet channel and exhaust channel to be guided to the dehumidifier box top with drainage component, the moisture in air can be effectively absorbed when passing through the dehumidifier box, thereby reducing the humidity in bathroom, promotes the comfort degree of bathing environment.

The invention discloses heat treatment rotating shaft hinge part conveying equipment, and relates to the technical field of rotating shaft hinge part conveying, the heat treatment rotating shaft hinge part conveying equipment comprises a sliding rail, a carburizing box is fixedly connected to the upper side of the sliding rail, and a conveying mechanism used for conveying rotating shaft hinges is arranged on one side of the carburizing box; an adjusting mechanism used for adjusting the distance between an upper rotating shaft hinge and a lower rotating shaft hinge and indirectly cleaning accumulated carbon black is arranged on the upper side of the conveying mechanism, a drainage mechanism used for guiding heat into the center of the adjusting mechanism is arranged in the adjusting mechanism, and the output end of an electric push rod is controlled to stretch out. The four walls of the sealing plate are attached to the inner wall of the carburizing box, the phenomenon that most heat in the carburizing box is lost is effectively prevented, the output end of the air cylinder stretches out to drive a first connecting rod, a second connecting rod and a third connecting rod to be unfolded, and therefore the distance between an upper rotating shaft hinge and a lower rotating shaft hinge is increased, and the atmosphere in the carburizing box is fully circulated; and the uniformity of a carburized layer is improved.

The invention relates to the technical field of communication engineering, and discloses an optical fiber switch cabinet for communication engineering, which comprises a cabinet and a side plate detachably mounted on the side wall of the cabinet, a mainboard and a hard disk mounting seat are fixedly mounted on the rear side wall of the cabinet, a power supply box is fixedly mounted on the left side wall of the cabinet, and the optical fiber switch cabinet further comprises a supporting seat, the supporting seats are fixedly connected to the left and right sides of the top surface of the inner cavity of the cabinet; the temperature control mechanism is arranged on the right side of the top surface of the inner cavity of the cabinet, and the temperature control mechanism is used for monitoring the environment temperature in the cabinet; the heat dissipation mechanism is arranged between the supporting seats on the two sides, and the heat dissipation mechanism is used for improving heat dissipation of the optical fiber under overclocking work. According to the invention, through cooperation of the temperature control mechanism, the heat dissipation mechanism and the like, the blowing box reciprocates on the side wall of the reciprocating threaded groove rod and blows air downwards to each electrical component in the cabinet, so that the position of blown air is prevented from being fixed, and the heat dissipation efficiency of the whole optical fiber switch cabinet is greatly improved.

The utility model discloses a multifunctional oven, it includes external connection baking tray subassembly, adjustable assembly and support component, the bottom of external connection baking tray subassembly is installed with adjustable assembly, and the bottom of adjustable assembly is installed with support component, external connection baking tray subassembly includes sealed heat insulating ring, sliding slot, heat insulating sealing board, pull buckle, support ring and baking tray body, the inside of sealed heat insulating ring is seted up with sliding slot, and the inside sliding connection of sliding slot has heat insulating sealing board, and the end of heat insulating sealing board is fixedly connected with pull buckle, a top of sliding slot is provided with support ring, and the outer wall of support ring is fixedly connected with baking tray body. The sealing effect of heat insulating sealing board in this embodiment, the heat is better locked in the oven, and hot air can be fully circulated in the oven, so that food is evenly heated in each part, not only improves the cooking efficiency, but also can ensure that food is baked with uniform luster, excellent taste quality, gives full play to the function and performance advantage of oven.

The utility model relates to a physical cooling tool for infant fever, which comprises a headrest, a water hose and a circulating cooling mechanism, one end of the headrest is communicated with one end of the water hose, and the headrest and the water hose are of hollow structures filled with water; the headrest is used for supporting the back side of the head of the patient, and the other end of the water hose can be pasted to the other end of the headrest through the hook-and-loop fastener after being turned over and covers the forehead of the patient after being turned over; the circulating cooling mechanism is located on the side, away from the patient, of the headrest and communicates with the interior of the headrest through a water outlet pipe and a water inlet pipe, so that water in the headrest and the water hose circularly flows after reaching the preset temperature; the water outlet pipe extends into the headrest and then is divided into a first water outlet hose and a second water outlet hose, the first water outlet hose is located in the water hose and extends in the length direction of the water hose, and the second water outlet hose is located in the headrest and extends in the width direction of the headrest. It is guaranteed that after the water hose is overturned and applied to the forehead of a patient, water in the water hose can circularly flow, and the cooling effect is guaranteed.

The invention relates to a perfluorotributylamine preparation device and a preparation process, and belongs to the field of perfluorotributylamine preparation and fluid working system. In the process, tributylamine and hydrogen fluoride are in a mass ratio of 80-100kg:200-230kg, hydrogen fluoride is first added to an electrolytic cell, and then tributylamine is added; before reaction, air in the electrolytic cell is replaced by nitrogen, and the air is replaced by nitrogen for preliminary mixing and preparing electrolyte; then low-voltage current is passed to carry out electrolytic replacement reaction, and the reaction pressure is controlled at 0.1-1.5MPa, and the temperature is controlled at -10-30°C; by controlling the reflux distribution of circulating liquid and the single circulation path, products with high specific gravity are deposited in pipeline equipment, so as to improve reaction activity, fluorination efficiency and conversion rate; the electrolytic fluorination method is adopted, the reaction is mild and controllable, the process is simple, the efficiency is high, the impurities are few and easy to separate, and the scheme also provides a perfluorotributylamine preparation device, which is adapted to the preparation process, and a perfluorotributylamine crude product with a purity of more than 80% is obtained under the conditions of simple reaction raw materials and simple reaction device.

The incubator capable of controlling the temperature and the humidity comprises an incubator body, a temperature control device, a humidity control device and an air circulation device, the incubator body is composed of a bottom plate, a top plate, a side plate and a cabinet door, the side plate is of a hollow structure, and the air circulation device is arranged in the hollow structure of the side plate; the temperature control device is arranged on the outer side of the side plate, the humidity control device is arranged on the outer side of the side plate, the temperature control device controls the temperature of the cultivation space through the compressor, the humidity control device controls the humidity in the cultivation space through the humidifier, and the air circulation device can accelerate the air velocity in the cultivation space. According to the utility model, the temperature and the humidity in the box body can be quickly adjusted to reach set parameters and are kept stable, so that the culture effect is ensured.

The utility model discloses a high-boiling tetraethoxysilane filtering device which comprises a plate-and-frame filter, a filtering discharge pipe is arranged at the lower part of the plate-and-frame filter, the filtering discharge pipe is connected with a stirring tank through a circulating pipeline, a stirrer is arranged in the stirring tank, the top end of the stirrer is connected with a machine seal, and the bottom of the stirring tank is connected with a discharge pipe. The discharging pipe is connected with a circulating pump, the circulating pump is connected with a plate-and-frame filter, and the plate-and-frame filter is connected with a nitrogen purging pipeline. Compared with the prior art, a traditional filter bag filter is improved into the plate-and-frame filter, materials can be fully circulated in the plate-and-frame filter press and the stirring tank, impurities can be fully enriched between the plate-and-frame filter cloth, and products can be completely filtered and recycled. And in the impurity collecting stage, discharging is carried out only after nitrogen purging is completed, an operator collects and treats solid impurities, and certain promotion is achieved for environment protection and the field working environment.

The utility model relates to the technical field of combustion equipment, and provides a flue gas independent circulation type heating furnace which comprises a furnace body, and an air inlet and a smoke outlet are formed in the side wall of the furnace body. A combustion chamber and a feeding chamber are adjacently arranged in the furnace body; a feeding hopper used for adding fuel into the combustion chamber is arranged in the feeding chamber, and an induced draft fan and an air inlet pipe are further arranged in the feeding chamber. The exhaust end of the induced draft fan is connected with the smoke outlet; the other end of the air inlet pipe is connected with the air inlet; and the induced draft fan is configured to generate negative pressure in the combustion chamber, so that external air is sucked into the combustion chamber from the air inlet pipe, and smoke generated in the combustion chamber is discharged from the smoke outlet. Therefore, circulation of air flow is achieved in a negative pressure mode, smoke is prevented from diffusing into a room and polluting indoor air, and the negative pressure negative pressure heat supply device is clean, environmentally friendly and high in heat supply efficiency. Countercurrent flow heat exchange is formed between the flue gas and gas in the air supply cavity in the exhaust process, and heat in the flue gas is fully utilized.