31results about How to "Implement loop operation" patented technology

The invention provides a method for preparing allyl alcohol through selective hydrogenation of propargyl alcohol. According to existing methods for synthesis of allyl alcohol through hydrogenation of propargyl alcohol, an immobilized heterogeneous catalysis system is adopted mostly, and high conversion rate, high selectivity and low leftover rate are hard to realize at the same time. The method is characterized in that the weaknesses of an immobilized catalyst are avoided, and VIII-group water-soluble metal salt and a water-soluble ligand are adopted for complexing to form a complex catalyst so as to achieve water-organic biphasic hydrogenation reaction. The method comprises the steps of material charging, nitrogen and hydrogen replacement, and hydrogenation reaction. During material charging, 0.1-5 parts of water and 0.005-0.1 part of catalyst are added to a kettle, and then 1 part of propargyl alcohol is added. The conversion rate of propargyl alcohol is 99.9-99.99%, gas phase selectivity is high, and yield is high; the catalyst is evenly and stably dispersed, unit consumption is low, recycling can be conducted for more than 30 times, the catalyst, the product and a catalytic system are easy to separate, operation is easy, and the method is suitable for industrial production.

The invention discloses an automotive part automatic turnover sand blasting device. The automotive part automatic turnover sand blasting device structurally comprises a sand blasting machine body, a recovery hopper, supporting legs, a raw material box, a part inlet, a part output device, an intermittent type self-sand-removal turnover device, a visible window, an electric control cabinet and a waste gas treatment device. The sand blasting machine body is of a rectangular structure. The recovery hopper is arranged at the bottom of the sand blasting machine body and is of an integrally formed structure. The supporting legs are arranged at the four ends of the bottom of the sand blasting machine body. The raw material box is arranged behind the sand blasting machine body. By the adoption of the automotive part automatic turnover sand blasting device, clamping plates are timely cleaned by the arranged intermittent type self-sand-removal turnover device after the sand blasting machining ofeach automotive part is accomplished, and the orderly cyclic operation of sand blasting, turnover, part discharging and self cleaning is achieved. In addition, as the purpose that the double sides aresubjected to uniform sand blasting is achieved, the phenomena that due to the facts that after the clamping plates are subjected to sand blasting along with the automotive parts, the clamping platesare not timely cleaned, and the accumulation of sand materials happens, the mass of the sand materials is increased, and the turnover capacity of the clamping plates is affected are avoided, and the stable clamping operation of the clamping plates is guaranteed.

The invention discloses an automotive part automatic turnover sand blasting device. The automotive part automatic turnover sand blasting device structurally comprises a sand blasting machine body, a recovery hopper, supporting legs, a raw material box, a part inlet, a part output device, an intermittent type self-sand-removal turnover device, a visible window, an electric control cabinet and a waste gas treatment device. The sand blasting machine body is of a rectangular structure. The recovery hopper is arranged at the bottom of the sand blasting machine body and is of an integrally formed structure. The supporting legs are arranged at the four ends of the bottom of the sand blasting machine body. The raw material box is arranged behind the sand blasting machine body. By the adoption of the automotive part automatic turnover sand blasting device, clamping plates are timely cleaned by the arranged intermittent type self-sand-removal turnover device after the sand blasting machining ofeach automotive part is accomplished, and the orderly cyclic operation of sand blasting, turnover, part discharging and self cleaning is achieved. In addition, as the purpose that the double sides aresubjected to uniform sand blasting is achieved, the phenomena that due to the facts that after the clamping plates are subjected to sand blasting along with the automotive parts, the clamping platesare not timely cleaned, and the accumulation of sand materials happens, the mass of the sand materials is increased, and the turnover capacity of the clamping plates is affected are avoided, and the stable clamping operation of the clamping plates is guaranteed.

The invention provides a full-automatic liquid crystal suction cup mechanical device which comprises a material moving mechanism and a plate moving mechanism, the material moving mechanism comprises a fixing frame, a suction cup mechanical arm and a first liquid crystal suction cup, the suction cup mechanical arm is movably connected with the fixing frame, and the first liquid crystal suction cup is connected with the suction cup mechanical arm; the plate moving mechanism comprises a rotating mechanism, a supporting mechanism, a lifting mechanism and a feeding mechanism, a first end of the supporting mechanism is fixedly connected with the rotating mechanism, the lifting mechanism is movably connected with the supporting mechanism, the feeding mechanism is fixedly connected with the lifting mechanism, and a second end of the supporting mechanism is movably connected with the feeding mechanism. The feeding mechanism comprises a first motor, a ball screw and a second liquid crystal suction cup, the first motor is rotatably connected with the ball screw, and the second liquid crystal suction cup is connected with an output shaft of the first motor. The material taking and packaging device is simple in structure, convenient to operate and capable of achieving cyclic operation of material taking and packaging, cost is reduced, and production efficiency is improved.

The invention discloses a method and equipment for regenerating dryers / protection beds of an MTP (Methanol To Propylene) device. According to the method, a fuel gas is used as a regeneration gas source; fuel gas generated by the MTP device and the fuel gas from the boundary are conveyed into a fuel gas pipe net of the MTP device; one path of the fuel gas is introduced from the fuel gas pipe net to a heater; the fuel gas introduced to the heater is heated to the temperature for regenerating the dryers / protection beds and then is used as a hot regeneration gas; the other branch of the fuel gas is introduced from the fuel gas pipe net to be used as cold regeneration gas; the heat regeneration gas and the cold regeneration gas are proportionally mixed according to different regeneration temperature requirements and then are conveyed into the dryers / protection beds; the fuel gas from the dryers / protection beds is cooled and is conveyed into a flash tank; then the fuel gas containing water is divided into two paths at the top of the flash tank; one path of the fuel gas is directly conveyed into a heating furnace to be used as a fuel and the other path of the fuel gas is pressurized by a circulating fuel gas compressor; and then, the fuel gas is cooled and is conveyed into the fuel gas pipe net, so that the internal circulation of the fuel gas is realized.

The invention discloses a method and device for realizing load balancing, wherein the method includes: receiving a domain name resolution request, judging whether the pre-created shared status bit is in the status of an existing process and performing domain name resolution; if not, modifying the shared status bit It is the state that the domain name resolution is being performed by the existing process, and the domain name resolution is performed on the received domain name resolution request; if it is, wait until it is determined that the shared status bit is the state that the non-existing process is performing domain name resolution, and then modify the shared status bit to exist. In the state of domain name resolution, the domain name resolution is performed on the received domain name resolution request; after the domain name resolution is completed, the control sharing status bit returns to the state that no process is in progress of domain name resolution. The above technical solution ensures that only one domain name resolution is in progress at the same time through the state constraint of the shared status bits, so that the domain name resolution can be executed according to a preset load balancing strategy to achieve load balancing.

The invention discloses an automatic defoaming multifunctional rectification tower device, which includes a tower kettle, a metering tank, a filter, a raw material storage tank, a defoaming device, a tower body, a vacuum system, a heating system, and a condensation cooling system. The lower part of the foaming device is connected to the upper part of the tower kettle, the upper part of the defoaming device is connected to the lower part of the tower body, the raw material storage tank, filter and metering tank are connected to the feed port of the tower kettle after being connected in series through pipelines, and the condensation cooling system It is installed on the top of the tower body, and the top of the tower body is connected to the vacuum system through pipelines. The invention solves the problem of severe flooding caused by too much foam in vacuum rectification, and can be used for component separation of various aromatic oils or multiple components in one aromatic oil, and realizes continuous operation of vacuum rectification , after the rectification is completed, there is no need to cool down the rectification tower and release its vacuum, but use a vacuum pump to control the vacuum of the raffinate tank to be lower than the vacuum of the tower kettle, and discharge the still residue into the raffinate tank to realize feeding, rectification, and discharge Circular operation of other processes.

The present invention relates to a script engine system of a mobile terminal automation test and a testing method, and belongs to the technical field of mobile Internet network security. The system comprises a script parser, a conventional operation engine, a data operation engine, a page identification engine, an object analysis engine, a character input engine, a scheduler and and execution engine. According to the system and the method provided by the present invention, applications of a mobile terminal can be operated precisely by means of a current script engine, so as to accurately execute testing examples and improve precision of testing effects of a testing platform.

The invention provides a method for preparing allyl alcohol through selective hydrogenation of propargyl alcohol. According to existing methods for synthesis of allyl alcohol through hydrogenation of propargyl alcohol, an immobilized heterogeneous catalysis system is adopted mostly, and high conversion rate, high selectivity and low leftover rate are hard to realize at the same time. The method is characterized in that the weaknesses of an immobilized catalyst are avoided, and VIII-group water-soluble metal salt and a water-soluble ligand are adopted for complexing to form a complex catalyst so as to achieve water-organic biphasic hydrogenation reaction. The method comprises the steps of material charging, nitrogen and hydrogen replacement, and hydrogenation reaction. During material charging, 0.1-5 parts of water and 0.005-0.1 part of catalyst are added to a kettle, and then 1 part of propargyl alcohol is added. The conversion rate of propargyl alcohol is 99.9-99.99%, gas phase selectivity is high, and yield is high; the catalyst is evenly and stably dispersed, unit consumption is low, recycling can be conducted for more than 30 times, the catalyst, the product and a catalytic system are easy to separate, operation is easy, and the method is suitable for industrial production.

The invention discloses a liquid cooling apparatus with an automatic heat dissipation function. The liquid cooling apparatus comprises an apparatus to be heat dissipated, a heat exchanging apparatus mounted on the apparatus to be heat dissipated, a heat dissipation apparatus, a pump, a first liquid storage tank and a plurality of communicating pipes, wherein the communicating pipes comprise a first communicating pipe, a second communicating pipe, a third communicating pipe, a fourth communicating pipe, a fifth communicating pipe and a sixth communicating pipe. The first liquid storage tank iscommunicated with the pump and the heat dissipation apparatus through the first communicating pipe and the fourth communicating pipe respectively, the heat exchanging apparatus is communicated with the pump and the heat dissipation apparatus through the second communicating pipe and the third communicating pipe respectively. A second liquid storage tank is further arranged in the liquid cooling apparatus, and the heat exchanging apparatus is communicated with the second liquid storage tank through the fifth communicating pipe and the sixth communicating pipe respectively. According to the liquid cooling apparatus with the automatic heat dissipation function, it is simple in structure and convenient to operate, the heat dissipation apparatus and the heat exchanging apparatus are designed creatively, so that cooling efficiency of the liquid cooling apparatus is greatly improved, cooling capacity of the liquid cooling apparatus is enhanced, and the liquid cooling apparatus is effective and practical.

The invention belongs to the technical field of bulb tools and particularly relates to an automatic drying device for bulbs. The automatic drying device for bulbs comprises a stander and is characterized in that a drying tunnel is arranged on the stander, heating wires are arranged at the bottom of the drying tunnel, an annular conveying chain is arranged on the stander and is connected with a motor, a plurality of bulb fixing seats are arranged on the annular conveying chain, seat holes are formed in the bulb fixing seats, and a part of the annular conveying chain penetrates through the drying tunnel and is located above the heating wire. The automatic drying device can be used for automatically drying bulbs.

The invention provides a washing machine. A water storage chamber can be formed by a first inner cylinder and a second inner cylinder. At this time, sewage formed after washing clothes in the first inner cylinder enters the water storage chamber through a water outlet valve. The first deflector is installed in the water storage chamber in an inclined shape, and a sewage chamber can be formed above the first deflector. The sewage flows into the filter chamber under the guidance of the first deflector, and the sewage is collected inside the filter chamber. filtering operation. After the filter chamber completes the sewage purification operation, the formed clean water will flow out from the filter chamber, and then further flow into the water purification chamber. Since the water purification chamber is equipped with a water inlet valve, the purified water will flow back to the In the first inner cylinder, the circulation and purification of sewage can be completed. At the same time, through the existing pulsator structure, the water circulation in the first inner cylinder can be realized, which can effectively reduce the water consumption, thereby effectively reducing energy consumption.