30results about How to "Reduce the dissipation rate" patented technology

The invention discloses a low shearing plunger type throttling valve used for oil production gathering and transporting. Based on a rotational flow agglomeration and unit mass energy dissipation rate control technology, orifices of a valve cage are designed to be in the tangential direction, a rotational flow chamber which is converged firstly and expanded afterwards is connected behind the orifices, the basic function of flow and pressure adjustment can be achieved on the plunger type throttling valve, meanwhile, the velocity gradient and the turbulence energy dissipation rate in a flow field are reduced, the shearing force of the orifices for fluid is reduced, the liquid drop breaking degree is lowered, and the subsequent oil water separation difficulty is lowered.

The invention discloses an automatic directional transmission wireless charging device. The wireless charging device comprises a base, and the upper part of the base is provided with a sliding board which is movable in the transverse direction. A first end sidewall of the sliding board in the length direction is provided with a first fixing chamber. The first end of the upper surface of the sliding board in the width direction is provided with a first lamp tube. The second end of the upper surface of the sliding board in the width direction is provided with a photosensitive detecting board. The automatic directional transmission wireless charging device further comprises the components of a plurality of single-axis moving mechanisms, wherein the first end sidewall of the single-axis movingmechanism in the length direction is provided with a second fixing chamber; a transmitting coil; a light-penetrable board; two telescopic driving mechanisms which are separately arranged in a lineardriving mechanism, wherein the telescoping end of the first telescopic driving mechanism selectively extends into the first fixing chamber, and the telescoping end of the second telescopic driving mechanism selectively extends into the second fixing chamber; and a controller which is connected with the lamp tube, the photosensitive sensing board, the driver, the linear driving mechanism and the telescopic driving mechanism. The automatic directional transmission wireless charging device settles a technical problem of easy dislocation between a transmitting coil and a receiving coil in the wireless charging device.

Disclosed is a multivariable predictive control method for an air separation device. The multivariate predictive control method comprises the steps that (a) an upper computer is additionally arranged on a DCS system local area network of the air separation device for creating an MVPC server of the air separation device; (b) variables are determined, specifically, according to the technological process optimizing target of the air separation device, the controlled variable (CV), the manipulating variable (MV) and the disturbance variable (DV) are determined; (c) the establishment principles of the size of an MVPC matrix are that key parameters are selected, the variables are controlled as less as possible, the valve opening degree, namely corresponding to the output of a PID controller under conventional control, is adjusted through the MV of an MVPC, when the MVPC works, the PID controller corresponding to the MV of the MVPC is in cascade control, the output of the PID controller tracks the MV of the MVPC, and when the MVPC does not work, the PID controller corresponding to the MV of the MVPC is in automatic control, and the MV of the MVPC tracks the output of the PID controller; (d) a model is built, specifically, an MVPC controller model is built in the air separation device, or independent MVPC controller models are built in different work sections in the air separation device; (e) the models are trained and adjusted, specifically, the gain K, the time constant Tau and the delay time Tdelay in the models are preliminarily set, and after the models are put into use, the optimized gain, time constant and delay time are provided by a system automatically; and (f) the models are put into use.

The invention discloses a thermal field suspension single crystal furnace and a method, the thermal field suspension single crystal furnace comprises a thermal insulation box, a crucible piece is arranged in the thermal insulation box, the bottom of the crucible piece is fixedly connected with a crucible tray, and the bottom of the crucible tray is fixedly connected with a crucible support rod. The first motor drives an adjusting sleeve to move downwards through a screw rod, so that a heat dissipation mechanism enters a flow guide cylinder to conduct heat insulation and dissipation, it is guaranteed that heat is not lost, then the inner wall of the flow guide cylinder is cleaned through a rotating mechanism, finally, temperature compensation is conducted on a heating sleeve through an electromagnetic temperature compensation mechanism, and the heating stability is guaranteed; the problems that an existing single crystal furnace thermal field is inaccurate in temperature control, stepped temperature control cannot be carried out, forming efficiency is affected, meanwhile, heat loss of the thermal field is serious due to heat dissipation of a formed silicon rod, more energy is consumed, energy cannot be saved, and the utilization rate of resources is reduced are solved, and the single crystal furnace has the advantages of being accurate in temperature control, capable of dissipating heat and capable of saving energy.

The invention provides an intelligent dehydration device for corrugated paper production which comprises a bottom plate, supporting beams, a transverse plate, supporting rods, a corrugated paper waterabsorption frame structure, an auxiliary extrusion drying frame structure, a corrugated paper extrusion water outlet frame structure, a rotary cleaning frame structure, a support, a cross beam, a transmission roller, a conveying belt, driving motors, a rotary motor and a control box. The supporting beams are welded to the left side and the right side of the upper part of the rear end of the bottom plate; the transverse plate is connected to the upper parts of the front ends of the supporting beams through bolts; the supporting rods are in bolted connection to the left side of the upper part of the bottom plate; and the corrugated paper water absorption frame structure is arranged on the upper parts of the inner sides of the support rods. The intelligent dehydration device for corrugated paper production provided by the invention has the beneficial effects that through the arrangement of a rolling roller, the conveying belt and sponge mats, the rolling roller drives the conveying beltto rotate to guide corrugated paper to move leftwards, meanwhile, the sponge mats can absorb residual water in the corrugated paper, so that secondary dehydration of the corrugated paper is facilitated, the residual water in the corrugated paper is sucked out, and a dehydration effect of the equipment on the corrugated paper is improved.

The invention relates to an automatic delayed power-off folding type oriented heat conduction heater used for the position below an office table. The automatic delayed power-off folding type orientedheat conduction heater comprises a main heating box and an auxiliary heating box which are internally provided with a mica heating plate A and a mica heating plate B correspondingly. A hot flow guiding piece is further arranged in the auxiliary heating box. The rear outer side wall of the main heating box and the rear outer side wall of the auxiliary heating box are hinged together through hinges,the auxiliary heating box can rotate relative to the main heating box, a delayed temperature control switch is arranged on the front outer side wall of the main heating box, and after being connectedin parallel, the mica heating plate A and the mica heating plate B are electrically connected with an input power source through the delayed temperature control switch. By adoption of the technical scheme, when a user conducts usage, the heater only needs to be placed below the office table, and when the user is in the proper range, the heater is automatically triggered to work; and when the userleaves, delayed powering-off is automatically conducted. Electric energy is saved, the heat preservation effect is improved, the user is prevented from being scalded, and safety is improved. When theheater is not used, the heater can be folded and is convenient to carry.

The invention relates to a high-low-temperature test chamber with a high-temperature-resistant layer. The high-low-temperature test chamber comprises a case, a refrigeration device, an air compression device, a pre-buried copper pipe and a circulating air duct, wherein the case comprises a working chamber and a control chamber; the working chamber is located above the control chamber; the inner wall of the working chamber is provided with the pre-buried copper pipe and the circulating air duct; the circulating air duct forms a circulating path along the inner wall of the working chamber; the air compression device and the refrigeration device are arranged inside the control chamber; the refrigeration device and the pre-buried copper pipe are in connection; the air compression device and the circulating air duct are in connection; the inner wall of the working chamber is a high-temperature-resistant and heat-insulating layer which comprises a stainless-steel liner layer, a high-temperature-resistant mineral-wool layer, a polyurethane high-temperature-resistant layer and a surface layer; the high-temperature-resistant mineral-wool layer is laminated on one side of the polyurethane high-temperature-resistant layer; the surface layer is laminated on the other side of the polyurethane high-temperature-resistant layer; and the stainless-steel liner layer is laminated on the other side of the high-temperature-resistant mineral-wool layer.

The invention relates to a multichannel nucleic acid detector heating device, which comprises a placing table, the top of the placing table is provided with a plurality of mounting seats, the top surface of each mounting seat is provided with a containing groove, the groove bottom of each containing groove is provided with an electric heating piece, the side wall of each containing groove is provided with a contact piece, and the contact piece is provided with an electric heating wire. The electric heating piece and the contact piece are electrically connected with the same external power source, an electrode connected with the electric heating piece is opposite to an electrode connected with the contact piece, a taking and placing base is arranged on the side wall of the installation base, a heat conduction bearing plate used for placing a detection chip is arranged on the side wall of the taking and placing base, and a contact plate is arranged at the bottom of the heat conduction bearing plate. The contact plate is arranged in an L shape, the bottom side of the contact plate makes contact with the top side of the electric heating piece, the side wall of the contact plate makes contact with the side wall of the contact piece, and the top of the installation base is connected with a cover plate used for sealing and covering the containing groove. The method has the effect of reducing the energy consumption of the heating and heat preservation detection chip.

The invention discloses an automatic directional transmission wireless charging device. The wireless charging device comprises a base, and the upper part of the base is provided with a sliding board which is movable in the transverse direction. A first end sidewall of the sliding board in the length direction is provided with a first fixing chamber. The first end of the upper surface of the sliding board in the width direction is provided with a first lamp tube. The second end of the upper surface of the sliding board in the width direction is provided with a photosensitive detecting board. The automatic directional transmission wireless charging device further comprises the components of a plurality of single-axis moving mechanisms, wherein the first end sidewall of the single-axis movingmechanism in the length direction is provided with a second fixing chamber; a transmitting coil; a light-penetrable board; two telescopic driving mechanisms which are separately arranged in a lineardriving mechanism, wherein the telescoping end of the first telescopic driving mechanism selectively extends into the first fixing chamber, and the telescoping end of the second telescopic driving mechanism selectively extends into the second fixing chamber; and a controller which is connected with the lamp tube, the photosensitive sensing board, the driver, the linear driving mechanism and the telescopic driving mechanism. The automatic directional transmission wireless charging device settles a technical problem of easy dislocation between a transmitting coil and a receiving coil in the wireless charging device.

The invention relates to the technical field of kitchen appliances, in particular to a range hood and a control method thereof. The range hood comprises a lampblack collecting hood, a main oil screen and a lampblack guide plate, wherein at least part of the main oil screen is hollowed out to form a lampblack passing channel, and the main oil screen is movably connected with the lampblack collecting hood; the lampblack guide plate is of a plate-shaped structure, and the lampblack guide plate is movably connected with the main oil screen; when the main oil screen is in an initial state, the main oil screen is attached to the top surface of the lampblack collecting hood; when the main oil screen is in a working state, the main oil screen and the top surface of the lampblack collecting hood are arranged at an angle; when the lampblack guide plate is in the initial state, the main oil screen is covered; and when the lampblack guide plate is in the working state, the lampblack guide plate and the main oil screen are arranged at an angle. According to the range hood, when the main oil screen is in the working state, the main oil screen and the top surface of the lampblack collecting hood are arranged at an angle, so that the lampblack filtering effect can be improved compared with a mode that a main oil screen is parallel to the top surface of a lampblack collecting hood, and the main oil screen is configured to be in an inclined state so that the sliding speed of oil on the main oil screen can be increased.

The invention relates to an alignment layer detection machine used for detecting whether a groove on an alignment layer has defects or not. The alignment layer detection machine comprises a steam supplying mechanism and a sealing chamber. The steam supplying mechanism is used for inputting steam into the chamber; the chamber is used for accommodating a base plate for an alignment layer to be detected inside; at least part of the wall of the chamber is transparent. When the alignment layer detection machine detects whether the groove on the alignment layer has defects or not, the base plate is accommodated in the chamber, the water particle forming speed of the surfaces of the substrate and alignment layer is increased, the thicknesses of the water particles of the surfaces of the substrate and alignment layer are even, time for detection is shortened, and the detecting efficiency and the accuracy of detection results are improved; a machine vision detecting mechanism can be adopted for detection, and the detecting efficiency and reliability of the detection results can be further improved.

The invention relates to a device for simulating climate warming under field conditions. The device comprises an open-top air chamber which is arranged on the field ground, wherein the bottom edge of the open-top air chamber is arranged along the terrain of the field ground, the periphery of the open-top air chamber is closed, the top of the open-top air chamber is breathable, and an air input pipeline is laid in the open-top air chamber along the bottom edge; a temperature feedback control system which comprises a first temperature probe, a second temperature probe and a temperature difference controller, wherein the first temperature probe is arranged inside the open-top gas chamber, the second temperature probe is arranged outside the open-top gas chamber, and the temperature difference controller is connected with the first temperature probe and the second temperature probe; and an air circulation system which is used for inputting air flow into the open-top air chamber through the air input pipeline under the control of the temperature difference controller. The device has the advantages of being lower in construction and maintenance cost, being capable of actively and stably increasing temperature and being higher in precision, and is suitable for the under-forest environment and conducting the simulated temperature increase on the plants in the under-forest environment.

The invention relates to a portable guiding heating foot warmer for an office space, which comprises a main heating box and a sub-heating box, wherein a mica heating plate A and a mica heating plate Bare respectively installed in the main heating box and the sub-heating box; a heat flow guiding piece is further mounted in the sub-heating box; the rear outer sidewall of the main heating box and the rear outer sidewall of the sub-heating box are hinged through a hinge so that the sub-heating box can rotate relative to the main heating box; a power switch is mounted on the front outer sidewall of the main heating box; and the mica heating plate A and the mica heating plate B are connected in parallel and then electrically connected with an input power. By adoption of the technical scheme ofthe invention, the main heating box and the sub-heating box are unfolded to form a heating space by joining the inner walls of desk legs on the two sides of an office table; the dissipation speed of the heat energy in the air can be slowed down through the heat flow guiding piece, the heat preservation effect is improved; the user is prevented from being burned; the safety performance is improved;when not in use, the portable guiding heating foot warmer for an office space can be folded, thereby bringing convenience for carrying, and saving the storage space of the foot warmer.

The invention discloses a high-performance antistatic and flame retardant material and a preparation method thereof, comprising a base layer, an antistatic layer and a flame retardant and heat insulating layer, the antistatic layer is arranged between the base layer and the flame retardant and heat insulating layer, and the flame retardant and heat insulating The layer is located at the outermost layer of the fabric, the bottom of the anti-static layer is connected to the top of the base layer, the top of the anti-static layer is connected to the bottom of the flame-retardant and heat-insulating layer, and the flame-retardant and heat-insulating layer includes a flame-retardant layer and a heat-insulating layer. The flame retardant layer is bonded to the heat insulation layer. The flame retardant layer is located on the outside of the heat insulation layer. The first layer is woven with aramid fiber; the method includes: a. preparation of each layer of fabric; b. connection of antistatic layer; c. connection of flame retardant layer; d. cutting; e. coiling. The invention realizes that the fabric can play the role of flame retardancy and heat insulation while having the function of anti-static, so as to avoid the secondary injury caused by the fire to the workers.

The invention discloses a dehumidification energy-saving type negative pressure liquid cooling system which comprises a water tank cavity for circulating flow of cooling liquid, and further comprises a vacuum pump communicated with the water tank cavity and used for sucking mixed gas in the water tank cavity so as to form negative pressure in the water tank cavity. The dehumidifier is communicated with an exhaust port of the vacuum pump and used for condensing cooling liquid steam in the mixed gas, and the dehumidifier sends collected liquid cooling liquid back into the water tank cavity through a liquid return pipe. After mixed gas in the cavity of the water tank is discharged through the vacuum pump, most of cooling liquid steam is condensed into liquid cooling liquid again through the condensation effect of the dehumidifier on the cooling liquid steam, and finally the liquid cooling liquid is sent back into the cavity of the water tank through the liquid return pipe, so that feedback type online supplementing of the cooling liquid is achieved, and the cooling efficiency is improved. Therefore, the cooling liquid dissipation rate of the negative pressure liquid cooling system can be reduced, and the system liquid supplementing maintenance frequency and the operation and maintenance cost are reduced. The invention further discloses the server, and the beneficial effects of the server are as mentioned above.

Disclosed is a multivariable predictive control method for an air separation device. The multivariate predictive control method comprises the steps that (a) an upper computer is additionally arranged on a DCS system local area network of the air separation device for creating an MVPC server of the air separation device; (b) variables are determined, specifically, according to the technological process optimizing target of the air separation device, the controlled variable (CV), the manipulating variable (MV) and the disturbance variable (DV) are determined; (c) the establishment principles of the size of an MVPC matrix are that key parameters are selected, the variables are controlled as less as possible, the valve opening degree, namely corresponding to the output of a PID controller under conventional control, is adjusted through the MV of an MVPC, when the MVPC works, the PID controller corresponding to the MV of the MVPC is in cascade control, the output of the PID controller tracks the MV of the MVPC, and when the MVPC does not work, the PID controller corresponding to the MV of the MVPC is in automatic control, and the MV of the MVPC tracks the output of the PID controller; (d) a model is built, specifically, an MVPC controller model is built in the air separation device, or independent MVPC controller models are built in different work sections in the air separation device; (e) the models are trained and adjusted, specifically, the gain K, the time constant Tau and the delay time Tdelay in the models are preliminarily set, and after the models are put into use, the optimized gain, time constant and delay time are provided by a system automatically; and (f) the models are put into use.

The invention provides a dish-shaped underwater gliding robot, which relates to an underwater detection robot, and solves the problems of poor hydrodynamic performance, high energy consumption and poor cruising ability of two underwater detection robots. The dish-shaped underwater gliding robot comprises a main casing, wherein the main casing is in a water drop shape; the main casing mainly consists of an upper half cabin and a lower half cabin in sealed butt joint; the longitudinal section of the main casing uses an NACA airfoil profile; an ascending and sinking adjustment mechanism used for controlling the ascending and sinking of the robot is arranged in the upper half cabin; an electromagnetic propulsion system used for controlling the navigation of the robot, an alternating current module used for providing a power source for the electromagnetic propulsion system, an attitude adjustment mechanism used for controlling the attitude of the robot and a gravity center adjustment mechanism used for controlling the glider tail inclination are arranged in the lower half cabin; a main control module used for controlling the attitude adjustment mechanism, the gravity center adjustment mechanism and the ascending and sinking adjustment mechanism is also arranged in the upper half cabin; a battery pack for transmitting electricity to the alternating current module and the main control module is also arranged in the lower half cabin. The dish-shaped underwater gliding robot is used for underwater navigation detection.

The invention discloses a multi-channel transmission wireless charging method. The multi-channel transmission wireless charging method comprises the following steps of 1, performing scanning and imaging on first to-be-charged equipment on a base of a wireless charging apparatus through a scanning mechanism, determining the appearance dimension of the first to-be-charged equipment and the locationof the first to-be-charged equipment, and enabling the scanning mechanism to be reset; 2, determining a movement path of a displacement mechanism; 3, controlling a transmitting coil on the displacement mechanism to move along the movement path, detecting the use power of a first transmitting coil, recording the position coordinate with the highest power of the first transmitting coil, and placingthe first transmitting coil on the position coordinate; 4, lifting the first transmitting coli to shorten the distance between the transmitting coil and a receiving coil in the first to-be-charged equipment; and 5, enabling a second transmitting coil to be aligned to a receiving coil in second to-be-charged equipment, and performing wireless charging. By virtue of the multi-channel transmission wireless charging method, the technical problem of low charging efficiency of the existing wireless charging method is solved.

The invention relates to a phosphogypsum floor heating box. The phosphogypsum floor heating box comprises mica heating plates, floor heating plates, proximity switches, a control device and a box bodywith an opening in the top end, the floor heating plates are integrally formed by pressing phosphogypsum materials through a press machine, steps are arranged at the opening end of the box body, andthe multiple proximity switches are installed at the edges of the steps; and the floor heating plates are arranged on the steps in a lap joint manner and cover the opening end of the box body, the mica heating plates are installed in the box body, the control device is installed at the outer wall of the box body, and the proximity switch and the proximity switch are electrically connected with thecontrol device. According to the technical scheme, the floor heating plates are made of the phosphogypsum, the application field of the phosphogypsum is expanded, the dissipation speed of heat energygenerated by the mica heating plates is decreased through the floor heating plates, the heat preservation effect is improved, a user cannot make direct contact with the mica heating plates, the useris prevented from being scalded, and safety is improved; and when the user leaves, the phosphogypsum floor heating box is automatically stopped, usage by the user is facilitated, and electric energy is saved.