89results about How to "Heating evenly and efficiently" patented technology

The nature of this invention encompasses the creation of a capillary gas chromatography (GC) column assembly and a thermal modulator used to heat or cool the column assembly in a very thermally and chromatographically efficient manner. The GC column assembly described herein consists of capillary GC column material, such as fused silica or metal capillary tubing, which is constrained to lie in a flat, ordered, spiral pattern and then encased between two thin opposing surfaces. The resulting column assembly is flat, dimensionally stable and can be very efficiently thermally modulated. The resulting column assembly also takes up very little space, has very little thermal mass, and can be easily and accurately manufactured. The column assembly can be adapted for chromatographic use by affixing it to the surface of a thermal modulator described herein by means of adhesive force or by mechanical compression, and then by attaching the free ends of the exposed column material to the input and output ports of the chromatographic device. The temperature of the thermal modulator and capillary column assembly is to be controlled by the chromatographic device or by standalone temperature controlling electronics. The thermal modulator described herein contains an element for temperature modulation of the capillary column assembly to which it is attached and a temperature sensing element for providing accurate temperature feedback to the controlling electronics. The overall result of this when coupled to a chromatographic device is maximally efficient chemical separations in a small space with minimal power consumption.

The invention relates to a device for testing material properties in a high-temperature hydrogen environment. The device comprises a hydrogen environment box and a host machine loading framework, wherein a test sample is arranged in the hydrogen environment box; a pull rod is mounted on the host machine loading framework; the hydrogen environment box is arranged on the host machine loading framework; an upper clamping part, a lower clamping part and an electrical heating component are arranged in the hydrogen environment box; the pull rod penetrates through the hydrogen environment box and is fixedly connected with the lower clamping part; the hydrogen environment box is connected with a hydrogen supply pipe; an air-relief solenoid valve is arranged on the hydrogen environment box. The device further comprises sensors and a control component, wherein the sensors are used for monitoring test sample stress load, test sample deformation, test sample environment temperature and test sample ambient hydrogen pressure; the control component is used for monitoring and processing the information collected by the sensors. The device can be used for testing the creep property, stress rupture property and tension-tension alternating load fatigue property of a metal material in the hydrogen environment, can ensure the accuracy of testing results, works reliably and stably and has high efficiency.

A process for recycling plastic material by reducing a sample of plastic material to form plastic particles having a desired particle size; providing a susceptor agent to the plastic particles which imparts a dielectric property to the plastic particles; providing a bonding agent to the plastic particles; and treating the plastic particles with microwave energy to form a useable plastic material.

An anti-icing apparatus includes an anti-icing piccolo tube for an aircraft component with a plurality of self rotating elements. Each self rotating element of the plurality of self rotating elements includes a first inlet to receive a working fluid, a second inlet to receive the working fluid, a peripheral layer that connects the first inlet and the second inlet, and a plurality of outlets placed on the peripheral layer that expulses the working fluid through jets. The jets rotate each self rotating element and dynamically impinges the working fluid on an internal surface of the aircraft component.

The invention provides a preheating method and device suitable for powder laying type additive manufacturing, and belongs to the technical field of additive manufacturing. A movable type plane heating plate capable of covering a whole powder bed is arranged over the powder bed, the mounting height of the plane heating plate is slightly larger than a powder laying device, in the powder laying process, the powder bed and parts are preheated, after powder laying is finished, a plane light source is closed and put away, and the phenomenon that in the machining process, the plane heating plate blocks a high-energy beam is avoided. In the heating process, a temperature measuring sensor is used for monitoring the temperature of the powder bed in real time, a control system is adopted to implement feedback control over preheating of the powder bed according to the temperature monitoring result, full-breadth covering type heating is adopted, and the powder bed and formed parts are subject to high-temperature, efficient and unifier preheating. The invention further provides the device achieving the above method. The method is wide in application material and high in expansibility and is particularly suitable for powder laying type additive manufacturing of multiple large-breadth high-energy beams.

A coating mixture is applied to a hair appliance such as a styling iron, a dryer, or a roller by being mixed with a paint or by other known deposition means, and includes a ceramic component and a tourmaline component. Preferably, the ceramic component contains one or more of Silicon oxide, aluminum oxide, Ferrous oxide, Natrium oxide, potassium oxide, Titanium oxide, Calcium oxide, and magnesium oxide. The tourmaline component comprises crushed tourmaline particles of a size and concentration generally known in the art. By applying both components, preferably in the form of a mixed paint, a surface on an appliance or accessory that is adapted to receive heat will emit ions and, due to the known characteristics of both ceramic and tourmaline, will retain and distribute heat efficiently and evenly.

The invention discloses a quick pretreatment method for measuring the total phosphorus content in sediments, belonging to the environmental monitoring technical field. The invention comprises the following steps: A. pretreatment of a soil sample: the soil sample is weighed, dried to the constant weight, taken out, cooled and grinded to over 60 meshes under drying conditions, weighed and then transferred into a slaking pipe; B. slaking pretreatment: distilled water and potassium persulphate solution are added and placed into a slaking hole of a COD slaking instrument, and simultaneously blank solution is taken and processed together with a sample to be detected with the same method; C. slaking; D. filtration: after slaking is finished, the sample in the slaking pipe is leached out by the distilled water, filtered to a container by a filter paper or a filter membrane, diluted, colored and finally measured and calculated according to the general spectrophotography. Compared with the prior pretreatment method, the quick pretreatment method for measuring the total phosphorus content in the sediments has the advantages of quick measurement, few equipment used, low energy consumption, simple experimental conditions, easy carryover of experimental equipment, suitability for on-scene monitoring, and safe experimental process.

The invention discloses an efficient soil disinfection and fertilization device. The efficient soil disinfection and fertilization device comprises a frame, a rotating drum is arranged among the support legs of the frame, and the left of the rotating drum is fixedly connected with a shovel bucket; a first driving shaft is arranged inside the rotating drum and fixedly connected with first spiral blades. The efficient soil disinfection and fertilization device can dig out deep soil through the shovel bucket and the rotating drum, stir the soil through the spiral blades and crush clods through crushing blades; the efficient soil disinfection and fertilization device also comprises a steam generating device, which can generate steam and uniformly and efficiently heat the soil through circumferentially-distributed atomizing spray nozzles to greatly improve the soil disinfecting efficiency and effects; the crushing blades and a grinding barrel can crush fertilizer into powder and then the spiral blades can efficiently mix the powder fertilizer with the soil to improve the fertilizer application uniformity and effects, to save fertilizer and to improve the working efficiency.

The invention provides a microwave heating device which can uniformly and efficiently heat an object to be heated without using a driving mechanism and can suppress the bottom of the object to be heated from being scorched even though the object to be heated in a small shape. The microwave heating device includes a heating chamber (102) for receiving the object to be heated, a microwave generation part (103) for generating microwaves, a wave guide pipe (104) for transmitting microwaves, a plurality of microwave radiation parts (105a, 105b, 105c, 105d) for radiating microwaves into the heating chamber (102) from the wave guide pipe (104), standing waves are generated in the heating chamber (102), and the center (144) of the bottom (108) of the heating chamber (102) carrying the object to be heated generates a part between the antinode and the node of the standing waves.

The invention discloses a preparation method for writing in a spiral long-period fiber Bragg grating based on a bilateral CO2 laser. By adopting the bilateral CO2 laser, emitting laser can be perpendicularly irradiated to the region where a coating layer is removed from single mode fiber from the two sides, and CO2 laser beams are formed in two directions by a certain angle and emitted into the optical fiber with no overlapping. The two laser beams meet at the two sides of the optical fiber, a large-angle wrapping hot field is formed, and the uniform and effective optical fiber heating processcan be achieved. Torsion and irradiation boosting are separated, the CO2 laser freezes the mechanically-introduced torsion into the optical fiber, the periodic refractive index is introduced for modulation, the special long-period fiber Bragg grating is formed, and the technical problems that when laser heating and screwing are performed at the same time, due to the fact that the optical fiber issubjected to motor torsion and laser impact force at the same time, the optical fiber is likely to deform, the stepped structure is formed, and consumption is increased are solved.

A portable heating device for heating plastic tubing or pipe has a straight, hollow heating tube with an inner diameter larger than an outer diameter of the plastic tubing or pipe to be heated therein. A hot air gun directs a flow of hot air into the heating tube. A heat adjustment mechanism holds the hot air gun at an adjustable distance from the plastic tubing so that the hot air flow at the input end is at an optimum temperature range for softening the plastic tubing. The device is inexpensive to manufacture and easy to assemble, and avoids the use of expensive mechanical components. An optional heat retaining tail piece equipped with a cooling fan may be used to transfer the hot air flow air quicker through the heating tube.

The invention relates to the technical field of wet sludge drying, in particular to a rotational flow thermal vibration drying machine and a rotational flow thermal vibration drying system. The rotational flow thermal vibration drying machine comprises: a hollow drying chamber, wherein one end of the drying chamber is provided with a feeding port and an air inlet, and the other end of the drying chamber is provided with a discharging port; a heat source jacket which is arranged around the outer side of the drying chamber, wherein a medium serving as a heat source circulates in the heat source jacket, and a heat source outlet and at least one heat source inlet are formed in the heat source jacket; a rotating shaft which is arranged in the middle of the drying chamber and penetrates through the two ends of the drying chamber, wherein a driving motor used for driving the rotating shaft to rotate is arranged on the outer side of the drying chamber; and paddles which are mounted on the rotating shaft. The drying machine has a self-cleaning capability, so that the wall sticking phenomenon is avoided; The safe operation of the system is ensured by high-degree inerting circulation; and the drying machine is high in heat exchange efficiency, high in heat transfer speed and high in sludge drying speed. When the drying system is used, irritant gas cannot be discharged to the periphery, and secondary pollution to air is avoided.

The invention discloses a controllable heating-heat regeneration device for preparing nano-powder by a supercritical hydrothermal synthesis technology. Cold and hot fluid inlet and outlet flow channels are formed in a shunt matrix; a cold fluid forward flow channel, a cold fluid reverse flow channel, a hot fluid forward flow channel and a hot fluid reverse flow channel are arranged in a heat exchange matrix, electric heating rods are arranged in a central layer, a cold fluid connecting cavity, an upper annular cavity A, an upper annular cavity B and an upper annular cavity C are formed in theupper part of the heat exchange matrix, a lower annular cavity A, a lower annular cavity B, a lower annular cavity C and a lower annular cavity D are formed in the lower part of the heat exchange matrix, the hot fluid inlet flow channel, the upper annular cavity A, the hot fluid forward flow channel, the lower annular cavity B, a heat communication flow channel, the lower annular cavity C, the hotfluid reverse flow channel, the upper annular cavity B and the hot fluid outlet flow channel form a hot fluid loop; and the cold fluid inlet flow channel, the upper annular cavity C, the cold fluid forward flow channel, the lower annular cavity D, a cold communication flow channel, the lower annular cavity A, the cold fluid reverse flow channel, the cold fluid connecting cavity and the cold fluidoutlet flow channel form a cold fluid loop. According to the invention, the preheating temperature can be accurately controlled, the floor space is reduced, and heater microchannelizationI is achieved.

The invention discloses electric crucible furnace equipment for glass dissolution and a manufacturing method thereof. The electric crucible furnace equipment comprises a furnace body, wherein multiple transformers are arranged at the top of the furnace body; the transformers are externally connected with an electric control cabinet; the electric control cabinet is connected with the transformers and the electric equipment of the furnace body respectively; a crucible is arranged on the innermost layer of the furnace body; a four-layer thermal insulation structure is arranged outside the crucible and comprises a first-level thermal insulation brick layer, a second-level thermal insulation brick layer, a thermal insulation cotton layer and a steel cover layer sequentially from inside to outside; multiple heating rods are inserted into the furnace body; the ends of the heating rods stretching out of the furnace body are connected with the output ends of the transformers; and a thermocouple is inserted into the middle of the top of the furnace body. With the four-layer thermal insulation structure, the electric crucible furnace equipment disclosed by the invention effectively avoids the heat loss in the furnace; three transformers outputting different voltages provide three different working environments of low temperature, middle temperature and high temperature to the heating of the heating rods; and the moisture is removed sufficiently by the crucible and uniform and effective heating is obtained through low-temperature thermal insulation and middle-temperature thermal insulation, the cracking of the crucible is avoided, and the service life of the crucible is prolonged.

The present invention refers to a gas flow directing device (1) for burners (2) of cooking appliances, comprising innovative technical and functional features capable of better using gases from combustion process. However, it is mainly directed to maximize the efficiency of heat exchange of burners with cooking utensils. More particularly, said gas flow directing device (1) of the present invention comprises a base (3) provided with opening (4) for fitting a burner (2), wherein said base (3) is arranged such that it can be freely rotated around the burner (2) and comprises at least a pathway (5) configured from the arrangement of at least one outwardly projected distribution wall (6) containing at least an opening (7).

The invention discloses a drying equipment with a stirring mechanism, which relates to the technical field of drying equipment. The invention comprises a drying chamber, a material inlet and a material outlet connected to the inside of the drying chamber, and the inside of the drying chamber is inclined A vibrating partition is provided, and the outlet is located on the drying chamber on the lower side of the vibrating partition. The vibrating partition divides the drying chamber into an upper material chamber and a lower heating chamber, and a return air system is installed on the top of the upper material chamber. , the upper material chamber is provided with a horizontal stirring mechanism, the upper material chamber is provided with a drive mechanism to drive the horizontal stirring mechanism to rotate, and the lower heating chamber is provided with a heating source. The invention has the advantages of simple structure, uniform baking, high baking efficiency and The advantage of saving energy.

The invention relates to an industrial hot air oven. The industrial hot air oven comprises a drying box and a circulating pipe, wherein the drying box comprises a box body and a box door; the box dooris connected with the box body in a hinge manner; the box door can seal a box opening of the box body; the upper end part of the circulating pipe is arranged at the upper end of the box body; the lower end part of the circulating pipe is arranged on one side of the box body and is communicated with the lower end part of the box body through a connecting piece; a fan, a heating pipe and a drying frame are arranged in the box body; the fan is arranged at the bottom of the box body; the heating pipe is arranged above the fan and is connected with the inner wall of the box body; the drying frameis arranged above the heating pipe and is connected with the inner wall of the box body; a heat conducting sheet is arranged on the inner side of the middle part of the circulating pipe; the upper endpart of the heat conducting sheet is connected with the inner wall of one end of the circulating pipe; the lower end part of the heat conducting sheet is close to the inner wall of the other end of the circulating pipe in an inclined manner; and a water outlet is formed in the lower end part of the circulating pipe. Compared with the prior art, the industrial hot air oven has the advantages thatthe energy consumption is reduced, the heat waste is reduced, and the drying efficiency is improved.