53results about How to "Stable flow rate" patented technology

This utility model discloses a silicate ion measurement injection pressure stabilization device, comprising: an injection pipe, a pressure stabilization component, and a filter component; the pressure stabilization component includes a self-regulating pressure regulating valve and a flow controller fixedly connected to both sides of the injection pipe, a buffer tank fixedly installed on the upper part of the injection pipe, and an upper buffer cover and a lower buffer cover installed on the upper and lower sides of the buffer tank, respectively. According to this utility model, the water sample being transported in the injection pipe can have its pressure stabilized by the self-regulating pressure regulating valve, flow controller, and buffer tank installed on the injection pipe, ensuring a constant flow rate, thereby improving subsequent measurement accuracy, equipment stability, and data reliability. Simultaneously, the upper and lower buffer covers installed on the upper and lower sides of the buffer tank provide double-layer buffering for the water sample being transported from the injection pipe to the buffer tank during its descent, thus ensuring a stable flow rate of the water sample output through the output pipe.

The invention relates to the technical field of medical tools, in particular to an artificial membrane rupturing structure which comprises a barrel and a suction cup mounted at the top end of the barrel and further comprises a guide seat, a membrane rupturing device, a membrane rupturing device and a membrane rupturing device, the guide seat is mounted in the barrel, and a through hole is formed in the guide seat; the adsorption mechanism is installed in the cylinder body and connected with the guide seat, and the adsorption mechanism enables the suction cup to be adsorbed to the surface of the amniotic membrane; the artificial membrane rupturing structure is different from the prior art, in the using process of medical staff, the amniotic membrane can be clamped and fixed only by attaching the suction cup to the amniotic membrane and then pulling the hollow push rod, then puncturing is automatically conducted, the flow speed after membrane rupturing is stable, the membrane rupturing can be easily completed even though the medical staff with less experience, and operation is easy; the amniotic fluid after rupture of the membrane automatically flows to the outside through the drainage tube from the inside of the cylinder, and the amniotic fluid is not in contact with the uterus of the pregnant woman, so that the probability of infection in the uterus of the pregnant woman is greatly reduced, and the turbidity of the amniotic fluid flowing out can be directly observed.

The utility model relates to a sampling device suitable for water vapor quality detection of a power station boiler, which comprises a box body provided with moving wheels at the bottom, a sealed flow cell is arranged in the box body, a cooling assembly is arranged in the sealed flow cell, the sealed flow cell is connected with a sampling pipeline and a feeding pipeline, and the feeding pipeline is connected with the sampling pipeline. And the pipe head of the feeding pipeline is connected with a water pipe universal joint. The device has the function of collecting a water sample to be tested, can ensure the sealing performance of an instrument in the whole test process, can effectively connect various sampling pipe joints of different models on a boiler with a feeding pipeline of the device, and ensures that the temperature and the flow of the water sample to be tested meet the test requirements of the instrument in the test process of the instrument; therefore, the accuracy and effectiveness of field test results are ensured. In addition, the device meets the requirement for portable sampling in field inspection of the water vapor quality of the power station boiler, and the standardization and accuracy of the test are improved.

The utility model relates to a filter box for reducing the pouring and drying amount of aluminum alloy melt, and belongs to the technical field of melt filtering. The filter box comprises a filter box body; a filling block is arranged in the filter box body and is suspended in the center of the interior of the filter box body; a lifting lug is arranged at the top of the filling block; a winch is arranged on a wall body above the filter box body; a hook is fixed at one end of the bottom of a cable in the winch; the lifting lug is detachably connected with the hook; a filter plate is arranged at the lower part of the filter box body; and a liquid outlet is formed below the filter plate. The filling block is additionally arranged in the aluminum alloy melt filter box provided by the utility model and is placed in the center of the filter box, so that the constant temperature of each part of the flowing aluminum liquid can be effectively ensured, the flow speed in the filter box is stable, the drying amount is reduced, the consumption of the aluminum alloy solution is reduced, and meanwhile, the production efficiency and the stability in the casting process are improved; and defects are reduced, so that the rework rate and the rejection rate are reduced.

The coke breeze cyclone separator comprises a first cylinder, a volute body, a first conical cylinder and an exhaust pipeline, gas containing coke breeze enters the volute body from a gas inlet, flows along the inner wall of the volute body and is guided to form a rotating vortex, and spirally flows downwards towards the conical cylinder along the first cylinder; the coke breeze is thrown to the inner wall of the first cylinder under the action of centrifugal force, the coke breeze loses inertia force and falls into the dust collecting hopper along the wall face, treated gas continuously flows into the center in the descending process in the conical cylinder to form centripetal radial airflow, the central airflow spirally ascends and enters the exhaust pipeline, and spiral blades are arranged on the inner wall of the exhaust pipeline in the exhaust direction. The spiral direction of the spiral blades is opposite to the spiral direction of gas, the spiral blades and spiral airflow generate shearing force, the stability of the airflow is destroyed, the airflow forms rising micro-turbulent flow between the blades, coke breeze collides with the inner wall of the exhaust pipeline and the blades, secondary separation in the exhaust pipeline is achieved, and the powder discharging efficiency of the coke breeze cyclone separator is improved.

This utility model belongs to the field of wind tunnel testing and relates to a wind tunnel testing device for performance testing of aerospace metal skin. It includes: a high-pressure blower, a gas storage tank, a test air duct, a first barometer, and a controller. The high-pressure blower is connected to the inlet end of the gas storage tank, and the outlet end of the gas storage tank is connected to the test air duct. The first barometer is located inside the gas storage tank, and the first barometer, the high-pressure blower, and the controller are electrically connected. The gas storage tank is a spherical tank, and its interior is equipped with a honeycomb flow guide grid and a turbulence damping net. The honeycomb flow guide grid and the turbulence damping net divide the internal space of the gas storage tank into a first space and a second space. The first space is connected to the inlet end of the gas storage tank, and the second space is connected to the outlet end of the gas storage tank. After the high-pressure blower injects airflow into the first space, the airflow sequentially passes through the honeycomb flow guide grid and the turbulence damping net into the second space. This utility model is suitable for dynamic load identification tests on square plate-shaped aerospace metal skin.

The utility model relates to the technical field of commercial concrete production equipment, in particular to a multi-stage screening device for commercial concrete production, which comprises a screening box which is of a rectangular box structure, one side of the screening box is connected with a closing cover in a clamping manner, two layers of screening frames are vertically placed in the screening box, and the two layers of screening frames are connected with the closing cover in a clamping manner. An intercepting net is slidably connected to the bottom end of the screening box, and the intercepting net and the screening frame form a screening structure for commercial concrete production. According to the multi-stage screening type screening device for commercial concrete production, a three-stage screening structure is formed through the two layers of screening frames and the bottom intercepting net, the pore diameter of the upper-layer screening net is large, the pore diameter of the middle-layer screening net and the pore diameter of the middle-layer intercepting net are minimum, refined grading of commercial concrete aggregate is achieved, and on one hand, the production requirements of concrete of different grades are met; and the screening frame is obliquely arranged and staggered with the inclined direction of the splitter plate I, so that the retention time of the materials on the screen surface is prolonged, the materials are fully dispersed and are in contact with the screen, and the screening efficiency is improved.

The application relates to the technical field of throttles, in particular to a fishing-free throttle, which comprises a main body, slips, a connecting sleeve, a fishing head, a sealing cylinder and a sandproof cover. A plurality of slips are arranged in a ring shape on the main body. The connecting sleeve is arranged in the main body. The fishing head is inserted into the connecting sleeve and connected with the connecting sleeve. The connecting cylinder is arranged in the main body. The sealing cylinder is arranged on the connecting cylinder. The sealing cylinder is jointly arranged with the main body and is provided with a sealing gasket. The sandproof cover is arranged below the sealing cylinder. The valve core and the air nozzle are arranged in the sealing cylinder. The air nozzle is slidably connected with the sealing cylinder through a sealing ring. The air nozzle and the sealing cylinder are connected with a shearing spring. The valve core comprises a fixed core and a movable core. The valve core is divided into the fixed core and the movable core. When the pressure is reduced, the movable core is driven to move by the air nozzle to increase the throttling passage of the valve core, so that the fishing-free throttle is realized, and the yield of the oil and gas well can be ensured.

The utility model discloses a convenient water flux tester which comprises a first conducting hose, a peristaltic pump, a second conducting hose, a pressure gauge, a third conducting hose and a filter, one end of the first conducting hose extends into liquid to be tested, and the other end of the first conducting hose is connected with an inlet of the peristaltic pump; an outlet of the peristaltic pump is connected with a second conducting hose, and the other end of the second conducting hose is connected with a pressure gauge; the other end of the pressure gauge is connected with a third conducting hose which is connected with a filter; and a membrane to be detected is placed in the filter. According to the utility model, the water fluxes of different membrane materials can be conveniently and quickly tested, an accurate water flux value can be obtained through simple calculation, and the water flux testing device has the advantages of convenience in operation, easiness in carrying, wide application range and the like.

The application provides an organic synthesis steam recovery device and relates to the technical field of steam recovery.The device comprises a steam recovery tank and an air floatation separation tank arranged in the steam recovery tank, the steam recovery tank is internally provided with a spiral cold water pipe and a spiral partition plate, the air floatation separation tank is internally provided with an organic matter separation pipe and a gas overflow port provided with a gas diffusing plate, steam enters from a steam inlet, and then is countercurrently convected and condensed along the spiral partition plate and the spiral cold water pipe, condensed water and uncondensed gas enter the air floatation separation tank after being refined into bubbles by the gas diffusing plate, and through secondary condensation and air floatation during the rising process of the bubbles, organic matter impurities and pure condensed water are separated, compared with a traditional device, the application solves the problems of insufficient condensation, difficult impurity separation and loose structure, has the advantages of complete heat energy recovery, accurate organic matter separation and stable and compact operation, and is suitable for efficient treatment and resource recycling of high-temperature steam containing impurities in the organic synthesis industry.

The utility model discloses a leakproof tear bomb which comprises a launch shell, a launch cavity and a tear cavity which are communicated with each other are arranged in the launch shell, a percussion hole and a jet hole are respectively arranged at two ends of the launch shell, an empty shell is accommodated in the launch cavity, the percussion hole is positioned at the end of the launch cavity, and the jet hole is positioned at the end of the tear cavity. Wall breaking cones protruding towards the inside of the lacrimation cavity are further arranged at the spraying holes; a front piston and a rear piston are arranged in the lachrymation cavity, the front piston, the rear piston and the launching shell define a sealing cavity for containing lachrymation media, the front piston is arranged towards the wall breaking cone and provided with a sealing thin film, and when the wall breaking cone punctures the sealing thin film, the sealing cavity is communicated with the spraying hole. The front piston and the rear piston define the sealing cavity for containing the lachrymatory medium, the lachrymatory medium is prevented from leaking at the end of the launching shell, meanwhile, the sharp end of the wall breaking cone is used for puncturing the sealing film to enable the lachrymatory medium to be sprayed out, and it is guaranteed that spraying power of the lachrymatory medium is sufficient.

The invention provides an intelligent battery changing cabinet with an independent battery compartment, and relates to the technical field of battery changing cabinets. The intelligent battery replacing cabinet with the independent battery bins comprises a battery replacing cabinet shell, the battery bins are evenly arranged in the battery replacing cabinet shell, the peripheral sides of the battery bins communicate with independent air bins, the independent air bins comprise the upper air bin, the lower air bin, the left air bin and the right air bin, and negative pressure holes are formed in the top ends and the bottom ends of the upper air bin and the lower air bin. The aperture of the negative pressure hole is gradually increased; a division piece is arranged in the upper and lower air cabins; the plurality of independent channels are communicated with one another; a plurality of flow guide ribs are distributed in the independent channel; resistance balance cylinders are arranged in the left and right air cabins, a plurality of radial air outlet grooves are formed in one sides of the left and right air cabins, air flows are formed in the upper and lower air cabins and the left and right air cabins through the exhaust fans, and the air flows in the left and right air cabins enter the battery cabin and enter the upper and lower air cabins through suction force formed by the negative pressure holes; and airflow is formed on the periphery and inside the battery compartment to enhance the heat dissipation effect.

The embodiment of the invention provides a water flow standard device, and relates to the technical field of water flow standard equipment, and the water flow standard device comprises a water tank which is provided with at least one second water outlet; the flow stabilizing containers are communicated with the second water outlets in a one-to-one correspondence manner; wherein the steady flow container comprises a shell, a steady flow cavity is formed in the shell, the shell is provided with a steady flow outlet communicated with the steady flow cavity and a plurality of steady flow inlets, the steady flow outlet and the steady flow inlets are located in different surfaces of the shell respectively, the steady flow inlets are further communicated with the interior of the water tank, and the steady flow outlet is further communicated with the second water outlet. Therefore, the flow velocity of water flowing out of the second water outlet is relatively uniform through the flow stabilizing container, so that the measurement precision of the water flow standard device is remarkably improved.

This invention discloses a passive heat removal device for a pool-type reactor and its arrangement method. The device includes an upper heat exchange system and a lower heat exchange system, each system comprising a hot-end heat exchanger and a cold-end heat exchanger, with a pipe connecting the two heat exchangers to form an internal circulation of the working medium. The hot-end heat exchanger is arranged inside the reactor water pool, and the cold-end heat exchanger is arranged outside the reactor water pool. Considering the deep-well structure with a large length-to-diameter ratio of the reactor water pool, the temperature differences at different pool depths, and the complex and compact arrangement of internal reactor components, the hot-end heat exchangers are arranged in layers utilizing the longitudinal space within the reactor water pool; the cold-end heat exchangers are arranged against the outer wall of the reactor hall building, and a chimney structure or cooling tower is constructed around them to enhance heat exchange. This invention utilizes heat pipe technology, and through the rational arrangement of the passive heat removal device, enables the device to quickly remove heat from the reactor water pool in an accident situation, preventing the pool water from boiling.

The application provides a continuous casting production method of tinplate, which comprises the steps of dynamic control of a pulling speed, linkage control of cooling, dynamic adjustment of an insertion depth of a submerged nozzle and dynamic argon blowing, wherein the pulling speed control is based on the maximum section steel flow, the target pulling speed is calculated reversely according to the actual section, and the steel flow of each section is constant; the cooling water flow is compensated in linkage with the increment of the pulling speed, and the bulging of the shell is inhibited; the insertion depth of the nozzle adopts a one-way increasing insertion mode from shallow to deep in multiple stages; and the argon blowing flow is adjusted in stages according to the fluctuation of the crystallizer liquid level. The application can reduce the nozzle clogging area by more than 50%, the standard rate of liquid level fluctuation is increased to 95%, the continuous casting castability and the surface quality of the casting blank are significantly improved, and the application is suitable for the efficient and stable continuous casting production of tinplate and other aluminum-containing steels.

The utility model discloses a duckbilled air cap, which relates to the technical field of exhaust devices and comprises an air cap body and a fluid bed, the fluid bed is provided with a groove, an air distribution plate is arranged at the groove, a plurality of air holes are arranged on the surface of the air distribution plate, the air cap body comprises an upper cover and a lower cover, the lower cover is positioned at the upper end of the air distribution plate, and the air holes are communicated with the air distribution plate. The upper cover cap is located at the upper end of the lower cover cap, a connecting ring is arranged between the upper cover cap and the lower cover cap, the upper cover cap and the lower cover cap are connected together through the connecting ring, a plurality of fixing blocks are arranged in the hood body and fixedly arranged at the two ends of the lower cover cap respectively, lifting rods are arranged at the ends, away from the lower cover cap, of the fixing blocks, and the lifting rods are inserted into the fixing blocks. The lifting rod is fixedly connected with the upper cover cap, two rotating rods are arranged in the air cap, sliding rods are fixedly arranged at the two ends of each rotating rod, the lower end of the lifting rod is slidably connected with the sliding rods in the transverse direction, and a rotating piece for driving the rotating rods to rotate is arranged at one end of each rotating rod. The air cap has the effect of improving the air diffusion flexibility of the air cap.

The application discloses an overload protection viscous damper with a monitoring function and relates to the technical field of dampers, which comprises a damper body, a piston rod arranged in the damper body, bushings symmetrically arranged on the inner side of the damper body, a storage cavity and a working cavity separated by the bushings, an overflow port, an overflow valve arranged in the overflow port, a first pressure gauge fixedly installed in the storage cavity, a second pressure gauge fixedly installed in the storage cavity and a third pressure gauge fixedly installed in the working cavity. The damper is kept stable by opening and closing of the overflow valve, and even if the temperature influences the medium flow, the medium cannot flow into the storage cavity through the overflow valve due to the arrangement of the adjusting assembly. In addition, the medium flow rate is gentle due to the arrangement of the porous cylinder, so that the damping force fluctuation is avoided.

The utility model discloses glutathione catalytic liquid multistage ultrafiltration purification equipment, and relates to the technical field of ultrafiltration purification, the glutathione catalytic liquid multistage ultrafiltration purification equipment comprises a liquid storage box, a purification box and a microbial limit detector, the inner side of the purification box is fixedly connected with two groups of vertically arranged partition plates, the outer parts of the partition plates are provided with filter screens, and a purification mechanism is installed between the two groups of partition plates; a polyether sulfone ultrafiltration membrane layer is arranged outside the first mounting plate, and a sterilization-grade terminal filter membrane is arranged outside the second mounting plate; the microbial limit detector is fixedly connected to the inner side of the purification box, and a backflow mechanism is mounted in the purification box. The device realizes step-by-step interception of impurities through functional stacking of a polypropylene fiber layer, a glass fiber layer and an activated carbon layer, combines molecular sieve separation and absolute interception of a polyethersulfone ultrafiltration membrane and a terminal degerming membrane, introduces a liquid level sensor to be linked with a material conveying pump to realize dynamic circulating purification, ensures high recovery rate of glutathione, and meanwhile, reduces the production cost of glutathione. And the sterile and integrated efficient treatment of the catalytic liquid is achieved.

The utility model relates to a kind of aromatherapy structure and aromatherapy iron, belong to electrical appliances field.A kind of aromatherapy structure, comprising: shell assembly, shell assembly is equipped with containing space, containing space is used to store aromatherapy block;Overflow pipe fitting, overflow pipe fitting includes first pipe fitting and second pipe fitting, first pipe fitting and second pipe fitting are all arranged on shell assembly, first pipe fitting is equipped with liquid inlet, and second pipe fitting is equipped with liquid outlet;Flow guide plate, flow guide plate is arranged on shell assembly and is located in containing space, flow guide plate divides and forms flow guide passage in containing space, liquid inlet, flow guide passage and liquid outlet are sequentially communicated.The application discloses a kind of aromatherapy structure, for aromatherapy iron.In ironing operation, water flow enters into containing space through liquid inlet, water flow flows along flow guide passage evenly, after being in full contact with aromatherapy block, liquid filled with fragrance is discharged through liquid outlet, and is sent to heating component to heat liquid.

The utility model discloses a novel gas chromatograph-mass spectrometer sample introduction device, which relates to the technical field of sample introduction devices, and comprises an openable sample introduction box body, the sample introduction box body is provided with a sample introduction pipe and a sample discharge pipe which are arranged along the diagonal direction of the sample introduction box body, two partition plates which are parallel to each other and are used for separating space are arranged in the sample introduction box body, and the two partition plates are arranged in the sample introduction box body. A filter screen is detachably mounted on each partition plate, and a rotary cleaning mechanism which is in contact with the filter screen and is used for cleaning the filter screen is mounted on each partition plate; a temperature control mechanism is arranged on the front side of the sample injection box body. Revolution and rotation of the net cleaning brush roller are achieved through the rotary cleaning mechanism, the filter net is prevented from being blocked, the flow speed is guaranteed to be stable, refrigeration and heating are accurately controlled through the temperature controller, volatilization and degradation of flavor substances are reduced, the accuracy of experimental data is improved, in addition, the rotary cleaning mechanism can stir samples, promote convective heat exchange and improve heat exchange efficiency during cleaning, and the working efficiency is improved. And the sample can quickly reach the required temperature.

The utility model discloses a kind of flow cytometry multi-channel sample shunt devices, the utility model relates to flow cytometry technical field.The flow cytometry multi-channel sample shunt device includes bottom plate, the top of the bottom plate is provided with shunt mechanism, for shunt to be measured, the shunt mechanism includes: flow guide component, including fixedly installed in the top of bottom plate's support frame, the top of the support frame is fixedly installed with shunt pipe, the lower portion of the shunt pipe is fixedly installed with adapter pipe, when micro electric push rod drives sliding block to slide along bracket, sliding block bottom slope and bracket groove bottom slope perfectly fit, the cooperation of both can stably clamp or loosen hose, compared with the mode of conventional manual rotary threaded rod, electric adjustment can realize the fine control of telescopic amount, and then accurately change stable adjustment liquid flow rate through hose deformation variable, control panel will continue to fine tune according to the real-time feedback of ultrasonic module, form closed-loop control.

The utility model discloses a battery module with 360-degree air-cooling partition plates, a module partition plate is arranged between adjacent battery cell modules, the module partition plate comprises a first component, a second component and a third component, two ends of the first component are respectively connected to the surfaces of the two adjacent battery cell modules, and two ends of the second component are respectively connected to the surfaces of the two adjacent battery cell modules. The two ends of the second assemblies are connected to the adjacent first assemblies in the first direction, the two ends of the third assemblies are connected to the adjacent first assemblies in the second direction, the first direction is perpendicular to the second direction, and the second assemblies divide the battery cell modules into a plurality of first air channels in the first direction; the battery cell modules are divided into a plurality of second air ducts along a second direction by the third assemblies, and airflow can converge in the first air ducts and the second air ducts to form 360-degree heat dissipation airflow circulation. When the battery module works to generate heat, the heat can be diffused to the periphery through the crisscrossed air ducts and is not limited to the horizontal direction any more, so that the heat dissipation efficiency is effectively improved, and the local high temperature phenomenon is reduced.

The water soaking mechanism for the steam boiler comprises a boiler body water tank and an air chamber, and the air chamber is fixedly installed on the top face of the boiler body water tank. The steam boiler has the advantages that the reducer pipe and the turbine are adopted, when the steam boiler works, the high-temperature smoke pipe is arranged in the boiler body water tank, water in the boiler body water tank is heated at high temperature, steam is formed by the water and then enters the bent pipe along the air inlet hopper, at the moment, the diameter of the section of the bent pipe is large, and when the steam passes through the reducer pipe, the pipe diameter of the other end of the reducer pipe is reduced; the steam flow speed is increased, so that the steam outlet flow speed of the steam inlet pipe is increased, the blowing efficiency of the turbine is improved, the rotating efficiency of the turbine is improved, the turbine drives the shaft rod and the stirring rod to rotate, water in the furnace body water tank is stirred, and the heat distribution uniformity is improved; the problem that friction loss is increased due to middle force transmission is solved, power output is direct and stable, the stirring efficiency is improved, and then the working efficiency is improved.

The invention relates to the technical field of medical instruments, and discloses a flow limiting device of an infusion apparatus, which comprises a stroke rod, a thread is arranged at the position, close to the top, of the inner wall of the stroke rod, an adjusting bolt is mounted in a thread fit manner, and an extrusion spring is arranged at the top of the adjusting bolt. The bottom of the extrusion spring is in contact with the top of the extrusion cover, and the adjusting bolt rotates to be screwed under the action of thread fit, so that the extrusion spring is extruded to improve the pressure applied by the extrusion spring to the top of the extrusion cover. The adjusting bolt can be disassembled by reversely rotating the adjusting bolt, the extrusion cover can be lifted up and disassembled after the adjusting bolt is separated, and at the moment, the side hole can be removed from the outer side of the heating device, so that the separation of the side hole and the device is realized, and a flow limiting device in a traditional infusion device cannot be disassembled; and after being used, the device can only be discarded along with the side hole, so that waste is caused, the problem is well avoided, and the practicability of the device is improved.

The utility model belongs to the technical field of liquid sampling and detecting devices, and relates to a dissolved oxygen testing auxiliary device which comprises a dissolved oxygen testing probe, a collecting box and a stirring device, the collecting box is internally divided into a slow flow area and a detecting area through a filter plate, a sealing top is detachably installed on the top of the collecting box, and the dissolved oxygen testing probe penetrates through the sealing top and is located in the detecting area. The stirring device is located in the detection area, a second drain opening is formed in the detection area, and a water inlet and a first drain opening are formed in the slow flow area. The flow speed of water flow is buffered through the slow flow area, the water flow is more stable, bubbles are reduced, a dissolved oxygen test probe can more accurately detect the content of dissolved oxygen in water, a water sample in the detection area is more uniform through stirring, detection errors caused by non-uniformity of the water sample are avoided, and the detection accuracy is improved. The accuracy of the dissolved oxygen test is further improved, and the first drain opening and the second drain opening are respectively used for discharging water samples in the slow flow area and the detection area.

The invention discloses an insulation sheet production process. The insulation sheet production process comprises the following steps: S1, raw material selection; s2, raw material pretreatment; s3, co-extrusion outflow and tape casting are carried out; s4, online monitoring and post-processing are carried out; in the step S1, the insulating sheet comprises a functional surface layer A, an insulating layer and a functional surface layer B which are stacked in sequence, and the functional surface layer A is prepared from polymer particles A and filler A; the functional surface layer B adopts low-melting-point polyolefin to realize a hot melting bonding function; the insulating layer is made of polymer particles C and filler C; the raw materials also comprise key auxiliary agents such as an antioxidant and an ultraviolet light absorber. According to the production process of the insulating sheet, through the three-layer design of the functional surface layer A, the insulating layer and the functional surface layer B, the single insulating sheet simultaneously has multiple functions of surface protection, core insulation, hot melting bonding and the like.

An inlet of a coil holder sleeve of the air duct assembly is connected with a tubular support, a support cover is arranged on the side, away from the coil holder sleeve, of the tubular support, a high-speed motor is arranged in the tubular support, and an inner air inlet net is of a barrel-shaped structure with an opening at one end. The open end of the inner air inlet net is buckled to the side, away from the tubular support, of the support cover. By means of the honeycomb net of the support cover and the meshes distributed on the inner air inlet net, airflow is divided into a plurality of strands of small airflow twice, the airflow is rectified before entering a high-speed motor, the airflow is rectified after entering the high-speed motor, the airflow is rectified after entering the high-speed motor, and the airflow is rectified after entering the high-speed motor. The flow speed and the flow of the airflow are stabilized, the influence of turbulent flow is reduced, the airflow entering the high-speed motor is more stable, the influence of airflow disturbance on an air inlet of the high-speed motor is reduced, the wind noise is reduced, and the noise reduction effect is achieved.

The utility model discloses a valve technical field's steam atomization synergic reinforced type water spray temperature reducing device, including pipeline, one end in the pipeline is installed with cage type temperature reducing pressure reducing structure, one side of cage type temperature reducing pressure reducing structure is opened with steam inlet, the other side of cage type temperature reducing pressure reducing structure is connected with steam nozzle, the side of pipeline far away from steam nozzle is opened with outer ring hole, the bottom of pipeline is connected with temperature reducing water pipe, the inside of temperature reducing water pipe is opened with temperature reducing water inlet, one end of pipeline inside is close to steam nozzle and is installed with temperature reducing water nozzle. The utility model discloses the cooperation setting of steam nozzle, temperature reducing water nozzle, temperature reducing water inlet and cage type temperature reducing pressure reducing structure, utilizes high -speed atomization steam and temperature reducing water direct impact, and atomization steam flow rate is far higher than temperature reducing water, can evaporate temperature reducing water fast, and temperature reducing water divides into many tiny water mist, thereby has promoted the atomization effect of temperature reducing water.

The application discloses a kind of refrigeration air conditioner ammonia fluorine combined system and use method, belong to refrigeration air conditioning technical field, including ammonia refrigeration unit one, ammonia refrigeration unit two, circulating bucket one, circulating bucket two, high-pressure liquid accumulator, plate heat exchanger, workshop air conditioner;Ammonia refrigeration unit one suction end and circulating bucket one are communicated, the ammonia refrigeration unit two suction end and the connecting end between ammonia refrigeration unit one and circulating bucket one are communicated, the liquid supply end of circulating bucket one and the liquid inlet end of plate heat exchanger are communicated, back gas end and plate heat exchanger back gas end are communicated, the liquid supply end of circulating bucket two and the liquid inlet end of circulating bucket one are communicated, the liquid supply end of high-pressure liquid accumulator and the connecting end between circulating bucket two and circulating bucket one are communicated, closed circulation pipeline is formed between plate heat exchanger and workshop air conditioner.Can make workshop refrigeration cooling effect promotion, temperature stability reaches standard, energy consumption reduces;System operation safety, avoid ammonia liquid to the harm of personnel.