241results about "Pressure/vacuum vessels" patented technology

The present invention discloses a multifunctional and convenient reaction chamber for an electrically triggered Joule heating device and an operating method thereof, wherein the reaction chamber comprises a sealing cover and a base that are buckled together, wherein a first conductive fixing clamp and a second conductive fixing clamp are provided in parallel on the inner bottom plate of the base, wherein a sample fixing clamp is clamped and fixed between the first conductive fixing clamp and the second conductive fixing clamp, wherein electrodes are respectively mounted on both ends of a clamping plate on one side of the sample fixing clamp, and the electrodes at both ends are respectively in contact with and cooperate with the corresponding side clamps of the first conductive fixing clamp and the second conductive fixing clamp, wherein the sample is arranged between the clamping plates that are opposite to each other and the two ends of the sample are respectively in contact with and cooperate with the electrodes, and a cooling system is respectively provided on both sides of the sample fixing clamp. The present invention also discloses an operating method for a multifunctional and convenient reaction chamber for an electrically triggered Joule heating device. The present invention can achieve a higher precursor loading amount and a faster cooling speed, and can also meet the requirements of preparing a sample vacuum environment and a variety of reaction atmospheres.

The invention discloses a diamond smoothing and patterning method and device based on catalytic agent energy field auxiliary etching, and belongs to the technical field of diamond smoothing and patterning, smoothing or patterning of diamond is achieved through the combined action of a catalytic agent and an energy field, and the contact part of the diamond and a catalytic agent disc is in contact with the catalytic agent disc under the catalytic action of the catalytic agent. Enabling the part, in contact with the catalyst, of the diamond to be subjected to etching reaction or graphitization reaction with oxygen atoms, and enabling the part, not in contact with the catalyst disc, not to be subjected to reaction, so that the diamond generates a structure corresponding to the surface of the catalyst disc; and the material removal rate of the diamond is remarkably improved, and damage to the surface and the subsurface of the diamond is avoided.

To provide a subcritical water treatment device of an organic treated article, which can achieve uniform treatment without treatment unevenness.SOLUTION: A subcritical water treatment method in a subcritical water treatment device provided with a sealed container 12 that stores an organic treated article, stirring means 30 for stirring a raw material, and high-temperature and high-pressure steam jetting means 14 for performing subcritical water treatment comprises the steps of: throwing the treated article into the sealed container 12; uniformly supplying high-temperature and high-pressure steam to the treated article while stirring the thrown-in treated article, and executing subcritical water treatment for the treated article; and removing and recovering, after completion of the subcritical water treatment for the treated article, at least a partial liquid from the treated article in the system of the same pressing as that in the sealed container 12.SELECTED DRAWING: Figure 1

The invention relates to a novel isostatic pressing interference fit joint in which the assembly chamber has two diameters, one is a part S1 and the other is a narrower part S2, the part S2 forms part of a cylinder, and the cylinder is composed of a plurality of cylinders with interference fit joints. As the assembly chamber must be loaded with a cylinder which is adapted to the S1 part and not adapted to the narrower S2 part, the cylinder has two diameters. Then, once the assembly chamber is closed, the pressure is increased, the diameter of the assembly chamber is increased, especially the diameter of the S2 part is increased, and when the pressure is released, the composite chamber enters and is assembled with the S2 part. In order to facilitate assembly, the assembly chamber is preferably operated vertically, the S1 part is located at the top, and when the pressure is increased, the composite air cylinder falls into the S2 part under the action of self weight. It is then detached, as a result of which the composite cylinder is in interference fit with the other cylinder, the other S2 part must be included in the assembly chamber for reuse.

An object is to provide a drying method for continuous processing under reduced pressure, which affords high drying efficiency by bringing about an ideal fluidized state of a process product, the method including, with a median diameter (D50) of a granular starting material ranging from 1 µm to 1000 µm and under reduced pressure at an absolute pressure of 4 to 30, performing a drying treatment by fluidizing the granular starting material, through heating with a heating medium at a temperature 15 to 120°C higher than the boiling point of a solvent in the granular starting material under the above reduced pressure.

The invention discloses polyamide acid, a preparation device and method thereof, polyimide and a preparation method thereof. The polyamide acid and the preparation device thereof comprise a first reactor, a second reactor and a screw reactor, the first reactor and the second reactor are connected in parallel, and the first reactor and the second reactor are used for prepolymerization reaction; a first pump body is arranged on a pipeline of a prepolymer feeding hole of the first reactor and the screw reactor, a second pump body is arranged on a pipeline of a prepolymer feeding hole of the second reactor and the screw reactor, and the first pump body and the second pump body are used for controlling prepolymers formed in the first reactor and the second reactor to be introduced into the screw reactor; the screw reactor is provided with a vacuumizing unit, and the vacuumizing unit is used for forming vacuum in the screw reactor. According to the preparation device and the preparation method, the prepared polyimide has excellent mechanical property, thermal property and yield.

The utility model discloses vacuum extraction equipment for a reaction kettle, and particularly relates to the technical field of defoaming agent production equipment, the vacuum extraction equipment comprises a tank body for processing a defoaming agent, and an adjusting piece for preventing the defoaming agent from being solidified is arranged in the tank body; the adjusting part comprises a hollow column arranged in the tank body, two heating rods distributed at intervals are installed at the top of an inner cavity of the hollow column, and a plurality of heat conduction pipes distributed at intervals are fixedly communicated with the two sides of the hollow column; the top end of the hollow column penetrates through the tank body and extends to the top of the tank body. Liquid is heated through the heating rod, heat is conducted to a defoaming agent in the tank body through the hollow column and the heat conduction pipe, meanwhile, the servo motor drives the driving gear to rotate, the driving gear drives the hollow column to rotate through the meshed driven gear, and therefore the defoaming agent can be stirred through the heat conduction pipe on the hollow column, the defoaming agent can be prevented from being solidified, and the defoaming agent can be prevented from being damaged. And heat on the heat conduction pipe and the hollow column can be in full contact with the defoaming agent, so that the heat transfer efficiency is improved.

The invention concerns a separator for salts contained in a solution which is brought under supercritical conditions, with at least one scraper plate which slides and as it does so gives rise continuously to friction. All of the possible phases in the solution, some of them potentially fouling via sticking to the walls, especially the salts contained, are removed by ablation due to the friction. The course of the scraper plate enables it to be brought into a salt resolubilization zone, namely a zone in the inner chamber of the enclosure or in the tube where the temperature is below the salt precipitation temperature.

The invention relates to the technical field of sealing, and provides a cover body assembly and a supercritical water oxidation reactor, the cover body assembly comprises a main body, a cover body and a fastening structure, the main body comprises a mounting opening and a first lip part, the first lip part surrounds the periphery of the mounting opening, and the first lip part is provided with a first sealing surface; the cover body is arranged at one end of the main body in the axial direction and comprises a second lip part, the cover body seals the mounting opening, the second lip part is provided with a second sealing face, the first sealing face and the second sealing face are opposite in the axial direction and abut against each other in a sealing mode, and the periphery of the second lip part and the periphery of the first lip part are welded to form an annular welding part; the fastening structure connects the main body and the cover body. Under the action of axial pressing force of the fastening structure, the first sealing face abuts against the second sealing face in a sealed mode. The annular welding part is arranged on the periphery of the first lip part and the periphery of the second lip part in a surrounding mode, and the sealing performance is basically not attenuated through cooperation of multiple seals and the fastening structure.

The present disclosure, in one particular embodiment, relates to a plant and the production of urea in the plant, the plant comprising a valve body comprising an inner body portion and an outer body portion.

The utility model relates to the field of methanol cracking production, in particular to a multistage evacuator for methanol cracking hydrogen production, which comprises a mounting base, a hydrogen production and impurity removal tank fixedly mounted on the left side of the upper end of the mounting base, a pre-extraction communicating pipe groove fixedly connected to the upper side of the surface of the hydrogen production and impurity removal tank, and a pre-extraction mechanical pump fixedly connected to the right end of the pre-extraction communicating pipe groove. The lower side of the surface of the hydrogen production and impurity removal tank is fixedly connected with a fine extraction communicating pipe groove, the right end of the fine extraction communicating pipe groove is fixedly connected with a fine extraction molecular pump, the upper end of the hydrogen production and impurity removal tank is fixedly provided with an air pressure sensor, and the right side of the upper end of the mounting base is fixedly provided with a mounting frame; according to the utility model, the pre-pumping mechanical pump is matched with the pre-pumping communicating pipe to carry out pre-pumping evacuation operation, and then the fine-pumping molecular pump is matched with the fine-pumping communicating pipe groove to carry out fine-pumping evacuation operation, so that objects in the vacuum chamber can be efficiently vacuumized, the vacuum degree is higher, and efficient reaction and product purity are ensured.

The utility model discloses a reaction kettle connected with a negative pressure vacuum pump, which relates to the technical field of reaction kettles and is characterized in that a negative pressure vacuum pipe is mounted at the top of the reaction kettle in a matched manner; one end, far away from the reaction kettle, of the negative-pressure vacuum pipe extends into the vacuum tank; a sampling assembly is cooperatively mounted at the bottom of the reaction kettle; the sampling assembly comprises a pipe body; a material taking pipe is installed in the pipe body in a matched mode. In the material reaction process, a stepping motor drives a first bevel gear to rotate, a second bevel gear is arranged on one side of the first bevel gear, and when the first bevel gear is meshed with the second bevel gear, a straight gear coaxially arranged on the second bevel gear is meshed with teeth arranged on the material taking pipe, so that the teeth drive the sampling pipe to move along the inner wall of the pipe body; the end, provided with the through hole, of the material taking pipe moves into the reaction kettle, materials enter the material taking pipe through the through hole and are conveyed into the collecting device through the material taking pipe, the sampling detection effect is achieved, and the reaction quality and efficiency of the materials in the reaction kettle are improved.

The utility model discloses a reaction kettle capable of feeding in a grading manner, which relates to the technical field of reaction kettles, and comprises a kettle body and a kettle cover, the kettle cover is provided with an observation window, a lighting window, a feeding hole and an air outlet hole, the reaction kettle adopts an anchor frame type stirring manner, and a motor adopts a servo motor, so that the reaction kettle can be better sealed. According to the reaction kettle provided by the utility model, high-temperature and high-vacuum reaction can be realized, graded feeding can be realized, and various materials with different reaction speeds can be polymerized more uniformly.

The application belongs to the field of lithium hexafluorophosphate production, in particular to a vacuum reaction furnace for lithium hexafluorophosphate production, which comprises a horizontal vacuum furnace, the inside of the horizontal vacuum furnace is provided with a rotatable inner stirring frame, the inner stirring frame is attached to the inner wall of the horizontal vacuum furnace, and a feeding door for feeding and discharging is installed on the top of the horizontal vacuum furnace. Through such a setting, an integrated preparation process of lithium hexafluorophosphate synthesis and purification reaction is realized, air and moisture pollution caused by raw material transfer during the synthesis and purification reaction process is eliminated, the post-processing process is increased, the quality is reduced, and other problems are solved. At the same time, the switchable negative pressure absorption system makes the treatment of the purification and synthesis stages adapt smoothly, realizes the possibility of common operation, reduces the transfer, post-processing and other process steps, and improves the production efficiency.

The utility model relates to the technical field of reduced pressure drying reaction kettles, in particular to a reduced pressure drying reaction kettle with a cooling function, which comprises a reaction kettle, and the top end of the reaction kettle is communicated with a vacuum pipe and a pressure release valve; the cooling mechanism is arranged in the reaction kettle; wherein the cooling mechanism comprises a rotating frame rotationally connected to the inner wall of the reaction kettle; according to the device, through the rotating frame, the material pushing frame, the liquid inlet pipe and the cooling pipeline, raw materials close to the inner wall of the reaction kettle are pushed to the surface of the cooling pipeline, and the rotating cooling pipeline conveys, throws away and cools the raw materials in the middle of the reaction kettle; by means of the mode, the contact area between the raw materials and the material pushing frame and the contact area between the raw materials and the cooling pipeline are increased, so that the raw materials in the reaction kettle are evenly cooled, and the pharmaceutical production quality is improved.

The utility model belongs to the technical field of chemical reaction devices, and particularly discloses a high-temperature and high-pressure reaction kettle with a stirring function, which comprises a kettle body, a pneumatic stirring mechanism, an air inlet pipeline, a light phase discharge pipeline and a pressure measuring device, the stirring connecting rod penetrates through the kettle body, one end of the stirring connecting rod extends out of the kettle body and is connected with the pneumatic motor, the stirring blade is arranged on the stirring connecting rod in the kettle body, and a sealing structure is arranged at the bottom of the pneumatic motor. According to the reaction kettle, the pneumatic motor is used for replacing mechanical stirring, stepless speed change can be achieved, the stirring speed is relatively stable through pressure regulation, the sealing cooling sleeve and the sealing flange plate which are integrally formed with the pneumatic motor are adopted, and the sealing graphite ring is arranged in the sealing cooling sleeve; the octagonal gasket is additionally arranged between the sealing flange plate and the fixed flange plate at the top of the kettle body for sealing and is fastened through the bolt, so that the pressure resistance of the reaction kettle is improved.

The invention relates to a differential recycle reactor comprising two reactor tubes (3, 5) which are connected at each end with a bent tube (9, 11), forming a closed loop, a reactant feed with a nozzle (37) through which a reactant stream is injected into a first of the reactor tubes (3), and a product withdrawal point (38), wherein a catalyst can be placed in a second of the reactor tubes (5), the product withdrawal point (38) being located such that components being injected into the reactor (1) flow at least one time through the catalyst before reaching the product withdrawal point (38), wherein the reactor tubes (3, 5) are holes formed in a housing (6) and separated by a dividing wall (7).

The utility model discloses: a kind of water pressure autoclave, comprising: the reaction kettle body for installation, the mounting cover stably installed on the upper end of reaction kettle body;Further comprising: the mounting cover is provided with uniform stirring mechanism, wherein stirring mechanism includes first gear, second gear, first stirring rod, third gear and second stirring rod, the left side of first gear is connected with second gear, and the inside of second gear is connected with first stirring rod, and the right side of first gear is connected with third gear, and the inside of third gear is connected with second stirring rod;Second sealing ring, the lower end of second sealing ring is provided with sealing structure.The utility model relates to high-pressure kettle technical field, the water pressure autoclave, it is convenient to mix inside material of water pressure autoclave sufficiently evenly, it is convenient to seal protection to water pressure autoclave, ensure that inside material can effectively react, it is convenient to heat evenly to inside reaction material of water pressure autoclave.

The utility model discloses a vacuum heating stirring reactor for synthesizing semi-solid electrolytes, which comprises: the upper surface of the inner surface of a tank body is connected with a feed hopper, the lower surface of the tank body is connected with a discharge pipe, valves are arranged on the feed hopper and the discharge pipe, a heating plate is fixedly connected to the inner surface of the tank body, a motor is fixedly connected to the upper surface of the tank body, an electric push rod is rotatably connected to the inner surface of the tank body, the electric push rod is driven by the motor, a main threaded blade is fixedly connected to the lower end of the electric push rod, a connecting plate is fixedly connected to the side surface of the electric push rod, a slave threaded blade is rotatably connected to the lower surface of the connecting plate, a motor is fixedly connected to the upper surface of the connecting plate, the slave threaded blade is driven by the motor, and an air pipe is connected to the side surface of the tank body. Through the above components, the formation of bubbles can be reduced, and sufficient contact between the reaction materials and the catalyst or other components can be ensured, thereby improving the reaction rate and efficiency.

The present application relates to the technical field of sealing of superhard material synthesis, and particularly relates to a main cylinder sealing structure of a cubic press, which comprises a main shell, a sealing cylinder coaxially fixed in the main shell, a piston in sliding connection with the sealing cylinder, an oil pressure system for driving the piston to slide along the central axis direction of the sealing cylinder, a sealing assembly and a impurity removing assembly. The impurity removing assembly comprises a first impurity removing unit and a second impurity removing unit. The oil pressure system has a first stroke and a second stroke when driving the piston to slide. When the piston is in the first stroke, the first impurity removing unit is used to clean impurities through a negative pressure effect. When the piston is in the second stroke, the second impurity removing unit is used to clean impurities through a negative pressure effect. The sealing assembly is used to prevent the hydraulic oil in the first impurity removing unit and the second impurity removing unit from exchanging with each other. Thus, the impurities are removed, and the sealing cylinder is effectively prevented from being damaged by the impurities.

The invention relates to an inlet transition chamber for a vacuum chamber (4) of a mobile strip (2) vacuum treatment installation, of the type comprising at least one liquid reservoir (5) containing a liquid (11), the reservoir comprising an upstream compartment (6) and a downstream compartment (7), the upstream compartment (6) and the downstream compartment (7) being separated by a vertical partition (8) leaving an unobstructed passage (9) between the two compartments at the lower part of the reservoir, a guide roller (10) for guiding the strip being arranged in the passage (9). The transition chamber comprises a downstream evacuation chamber (13) extending from the downstream compartment (7) and connected to an evacuation device (15), liquid extraction means (17) being arranged in the downstream evacuation chamber (13), wherein the downstream evacuation chamber comprises an outlet slit (14) for the strip, and wherein the transition chamber comprises means (12) for cooling the liquid (11) contained in the reservoir.

The utility model relates to the field of chemical containers, and discloses a high-sealing-performance anti-explosion high-pressure kettle which comprises a kettle body, a sealing cover and a stirring device, a gas gathering tank is arranged on one side of the kettle body, the top of the sealing cover is communicated with a gas discharging pipe and a gas inlet pipe, and a breather pipe is communicated between the gas discharging pipe and the gas gathering tank and between the gas inlet pipe and the gas gathering tank; an automatic air outlet assembly is arranged in the air leakage pipe and sequentially comprises a fixing base, an elastic piece connected to the bottom of the fixing base, a non-return ball connected to the bottom of the elastic piece and a plugging ring used for bearing the non-return ball from top to bottom, a plurality of vertical through holes are formed in the fixing base in a penetrating mode, and the non-return ball is matched with the plugging ring in an inserted mode. And an automatic air inlet assembly is correspondingly arranged in the air inlet pipe. The high-pressure kettle has the effect of improving the safety in the using process of the high-pressure kettle.

The utility model relates to the technical field of sea grass processing, and discloses a sea grass alkali treatment device which comprises a treatment tank, a pressure intensity adjusting part and a mounting frame, the treatment tank is used for containing sea grass and alkali liquor and comprises a tank body and a tank cover movably mounted on the tank body, and a balance hole is formed in the tank body; the pressure intensity adjusting part comprises a driving set and an output set, the driving set transmits power to the output set, and the output set drives the tank cover to move in the axial direction of the tank body so as to change the pressure intensity in the tank. According to the utility model, the pressure intensity adjusting part is arranged, and high pressure and low pressure in the tank are alternately changed, so that the alkali treatment speed of sea grass is accelerated; meanwhile, continuous temperature rise caused by continuous high pressure in the tank is avoided; the output group is arranged, so that high-pressure and low-pressure switching in the tank can be continuously and stably carried out; the tank body is arranged to be the treatment tank body and the compression tank body, so that the tank cover achieves the same air pressure adjusting effect at a shorter displacement distance, and the volume occupied by the output group during working can be reduced.

The present invention relates to a tank base (1) for a pressure vessel (2) comprising a tank base body (3) made in a single piece. The tank base body (3) has an annular connecting edge (4) and a sloped bottom wall (5) for connecting the tank base (1) to a pressure vessel (2), the annular connecting edge (4) and the sloped bottom wall (5) defining a tank bottom cavity (6) having an edge surface (7) and a bottom wall surface (8) converging towards a lowest portion (9). The lowest portion (9) has an outlet (10), the sloped bottom wall (5) has no openings formed therein, and the outlet (10) is surrounded by a valve flange (11) for connecting a clamp connection adapter portion (12) for converting a bolt pressure connection into a clamp pressure connection for interchangeably connecting a valve device (13) to the tank base (1).

The utility model discloses a hydrothermal reaction kettle for carbon dot preparation, which relates to the field of carbon dot preparation, and comprises a barrel main body, a bottom cover is connected to the inner bottom surface of the barrel main body, a sealing cover is connected to the top of the barrel main body, a power-assisted rod is connected to the top of the sealing cover, and an inner bottle is arranged in the barrel main body. A top cover is arranged at the bottom of the sealing cover; according to the hydrothermal reaction kettle for preparing the carbon dots, the telescopic block can eject and move the top of an inner bottle out of the barrel main body, at the moment, the inner bottle can be directly taken out with hands, the efficiency of taking out the hydrothermal reaction kettle is improved, the elasticity of the hydrothermal reaction kettle can be changed through extrusion, the ejection strength of the inner bottle can be improved when the elasticity is changed, and the efficiency of taking out the inner bottle is further improved; the sealing ring can deform when being extruded, a gap between the bottom cover and the cylinder main body can be filled when the sealing ring deforms, double sealing of the hydrothermal reaction kettle can be achieved through material sealing of the bottom cover, and the sealing effect of the reaction kettle is improved.

The invention discloses a high-purity quartz sand purification device based on a supercritical process, and relates to the technical field of quartz sand purification. The reaction kettle comprises a lower reaction kettle body and an upper reaction kettle body, supporting bases used in cooperation are fixedly installed at the lower end of the lower reaction kettle body, the supporting bases are distributed in an array mode, the upper end of the upper reaction kettle body communicates with feeding pipelines used in cooperation, and the feeding pipelines are symmetrically distributed; by arranging and using the disconnecting mechanism, convenience is provided for insertion and separation of the limiting guide blocks and the limiting guide grooves, so that convenience is provided for rotation and reset of the four limiting pressing plates, convenience is provided for synchronous rotation of the four disconnecting screw cylinders, convenience is provided for synchronous downward pushing of the four limiting pressing plates, and the practicability is high. Therefore, convenience is provided for stable and uniform pressing of the upper reaction kettle body, convenience is provided for convenient and stable butt joint installation of the lower reaction kettle body and the upper reaction kettle body, and later disassembly is facilitated.

The invention discloses a hoop type hydraulic kettle which comprises a kettle body, a support column, a triangular bracket, a lifting hydraulic cylinder, a flange, a kettle cover, an air pressure valve and a hoop, the hoop comprises a hoop body, a rotating support, a buckling support, a hoop body hydraulic cylinder, a rotating shaft and a locking hydraulic cylinder. Compared with the prior art, opening and closing of the hoop body are controlled by controlling stretching and retracting of the hoop body hydraulic cylinder, the kettle cover can be rapidly opened and closed in the production process, the operation efficiency is improved, meanwhile, the concave structure is buckled on the kettle body and the kettle cover flange up and down, and the sealing performance can be improved.

The present invention relates to an apparatus and method for preparing dry ice blocks using liquefied carbon dioxide and the dry ice blocks prepared thereby, and includes the following features regarding the preparation of dry ice blocks using liquefied carbon dioxide, that is, liquefied carbon dioxide is injected into the inside of a cylinder having a predetermined internal space, the liquefied carbon dioxide solidifies in the internal space and accumulates at the lower end of the cylinder, and a piston located at the upper end of the cylinder pressurizes the predetermined internal space by descending and compresses and molds the solidified liquefied carbon dioxide pressurized by the piston.

The invention relates to a coating apparatus comprising a vacuum chamber (1) and a workpiece chamber (2), each of the chambers (1, 2) having an inner volume and a connection opening (3, 4) over which the vacuum chamber (1) and the workpiece chamber (2) are connected or connectable to each other, wherein the vacuum chamber (1) is provided with a vacuum device (5) adapted to generate a vacuum within the vacuum chamber (1) and the workpiece chamber (2), wherein a coating device (6) is adapted to provide a workpiece placed in the workpiece chamber (2) with a coating, wherein the vacuum chamber (1) is further provided with an interface (7), wherein the interface (7) can be brought into at least an open position and a closed position, and wherein in its closed position, the interface (7) separates the inner volume of the vacuum chamber (1) into two parts (8, 9), in particular in a vacuum-tight manner. The invention further relates to a coating system and a coating method.

According to an embodiment of the present disclosure, mass production is possible and production time may be reduced, thus increasing yield. Furthermore, a method and apparatus for manufacturing a nanomaterial, which can manufacture a high-purity nanomaterial are disclosed.