30results about How to "Eliminate backmixing" patented technology

The electrical raw oil desalting and dewatering device for petrochemical industry features its direct material feeding in strong electric field and horizontal flow of raw oil. The electrical raw oildesalting and dewatering device of the present invention has material distributor and strong electric field coalescence area in tank axial direction and oil outlet pipe in the top of the raw oil purifying area, with the strong electric field coalescence area being provided with at least two layers of parallel electrode plates parallel to or perpendicular to the tank axis. The material distributor is provided with nozzles to spray mixed oil-water material into the strong electric field between two adjacent electrode plates. Between the strong electric field coalescence area and the purified raw oil outlet, deposit separating area may be set.

The present invention is one electric raw oil desalting and dewatering apparatus for petrochemical industry. The present invention features the direct material feeding under strong electric field and the horizontal flow of raw oil. The electric raw oil desalting and dewatering apparatus has a tank with oil-water mixture inlet, axial strong electric field coagulation area with at least two layers of parallel planar electrode plates perpendicular to the axis of the tank, purified raw oil outlet with oil outlet pipe, material distributor inside the tank with nozzles to jet oil-water mixture into the strong electric fields between every two adjacent electrode plates, and depositing separation area set between the strong electric field coagulation area and the purified raw oil outlet.

A system for monitoring municipal saprobia inhibitive ability in real time based on oxygen uptake rate (OUR) comprises an aeration siphon device communicated with a sewage supplying system and a sludge supplying system. The aeration siphon device is composed of an aeration groove and a siphon groove in adjoining mode, the wall of the aeration groove is higher than that of the siphon groove, the aeration groove is communicated with the sewage supplying system and the sludge supplying system, and the siphon groove is communicated with an inlet of a closed coiler flow-pushing type bioreactor through a siphon tube. A dissolved oxygen (DO) detection system detects DO values of the inlet and an outlet of the closed coiler flow-pushing type bioreactor, and the signal output end of the DO detection system is connected onto a programmable logic controller (PLC) control system which is connected with an alarm system. The core part of system for monitoring municipal saprobia inhibitive ability in real time adopts the closed coiler flow-pushing type bioreactor so as to monitor the DO value of the inlet and the DO of the outlet in real time, automatically calculate mutation condition of activated sludge OUR, determines OUR mutation rate with different inhibition degree through plenty of experiments, and judge inhibitable degree of the saprobia by comparing automatically calculated OUR mutation rate with a preset value.

This invention relates to a fluid-state instantaneous calcining technique for calcining kaolin. The technique comprises a flue gas generating system, a loading system, a fluid-state calcining system, a gas-solid separating system and a post-calcining system. The material is loaded into the fluid-state calcining system by the loading system, where it is mixed with high-temperate flue gas flow generated by the flue gas generating system for instantaneous calcining. The calcined material is introduced into the gas-solid separating system, and the collected solid is then introduced to the post-calcining system for whitening treatment. The instantaneous calcining time is adjusted by the valve. The method can realize large-scale and continuous industrial manufacture, and can effectively reduce the time and energy consumption of post-calcining whitening treatment. The calcined kaolin product has improved oil-absorbency, hiding contrast rate and light extinction performance.

The invention discloses an intelligent water boiling device. A running water inlet end is connected with P ports of a second two-position two-way normally closed electromagnetic valve and a first two-position two-way normally closed electromagnetic valve; an A port of the first two-position two-way normally closed electromagnetic valve is connected with an inlet end of a solar heat collector; an outlet end of the solar heat collector is connected with an inlet of an inner layer water storage tank; an outlet of the inner layer water storage tank is connected with a P1 port of a two-position three-way electromagnetic valve; an A port of the second two-position two-way normally closed electromagnetic valve is connected with an inlet of an outer layer water storage tank; an outlet of the outerlayer water storage tank is connected with a P2 port of the two-position three-way electromagnetic valve; a heat exchange system is arranged at the outer periphery of the inner layer water storage tank; a single-chip microcomputer controls connection and disconnection of the two-position three-way electromagnetic valve, a three-position four-way electromagnetic valve and a third two-position two-way normally closed electromagnetic valve to control the heat exchange system and a heating pipe to output three water temperatures for different life demands; and the intelligent water boiling devicehas the advantages of green energy, intelligent control, convenient and quick energy circulation, excellent performances, prominent water saving effect and broad application prospect.

The invention relates to an internal component of oil-refining and chemical equipment, specifically to a swirling-flow float valve tower plate. The swirling-flow float valve tower plate comprises a valve face, a swirling-flow hole, a supporting angle, valve legs, valve feet, a tower plate and a gas guiding hole. According to the invention, gas enters the tower plate from the valve hole and is firstly dispersed by the valve hole, wherein part of the gas ejects from the swirling-flow hole arranged on the valve face and forms small-size gas bubbles after contacting with liquid; since the action of a swirling-flow field strengthens mass transfer between gas and liquid phases above the valve face, treatment capacity of the tower is greatly improved; meanwhile, the swirling-flow float valve tower plate has the advantages of self-cleaning capacity, small gradient of a liquid level on the tower plate, uniform distribution of the gas, no liquid-stagnation zone, high efficiency of the tower plate, large treatment capacity, etc., and can be extensively applied in unit operations like mass transfer and heat transfer of gas-liquid two phases and gas-liquid-solid three phases like gas purification, rectification, absorption and dust-removal.

The invention discloses an intelligent boiled water control method with the boiled water heat energy recycling function. According to the intelligent boiled water control method, intelligent boiled water control can be realized through an intelligent boiled water control device with the boiled water heat energy recycling function, a tap water inlet end is connected to a P port of a second two-position two-way normally-closed electromagnetic valve and a P port of a first two-position two-way normally-closed electromagnetic valve, an A port of the first two-position two-way normally-closed electromagnetic valve is connected to the inlet end of solar thermal collectors, the outlet end of the solar thermal collectors is connected to an inlet of an inner-layer water storage tank, an outlet of the inner-layer water storage tank is connected to a P1 port of a two-position three-way electromagnetic valve, an A port of the second two-position two-way normally-closed electromagnetic valve is connected to an inlet of an outer-layer water storage tank, an outlet of the outer-layer water storage tank is connected to a P2 port of the two-position three-way electromagnetic valve, and a heat exchange pipeline is arranged on the periphery of the inner-layer water storage tank. The intelligent boiled water control method has the advantages that the flow rate is controlled by an electromagnetic flow valve, water with multiple water temperatures can be output to meet the requirements of domestic water, a temperature sensor is arranged at the water outlet end to monitor the temperature of the water outlet end in real time, and therefore the boiled water heat energy can be recycled, and energy conservation can be matched with the flow rate.

The invention relates to a continuous water separator, which comprises: a liquid inlet (2), a container (1), an overflow tube (3), and an outlet valve (4), wherein the liquid inlet (2) and outlet valve (4) are independently on the top and bottom of container (1); the overflow tube (3) is at the upper part of container (1); the liquid inlet (2) is mounted with liquid tube (5) inserted into the lower part of container (1); the upper part of liquid tube (5) has one pressure balance hole (6). The invention can eliminate reflux, prolong the separate time, and improve the separate efficiency. And the invention has simple structure and lower cost.

The invention discloses a method for preparing m-dichlorobenzene from o-dichlorobenzene in a microreactor by using a solid acid catalyst, the solid acid catalyst is a catalyst with sulfonate radicalsimmobilized on a carrier, and the carrier is fumed silica or mesoporous silica. The method is continuous in reaction, high in m-dichlorobenzene selectivity and easy in quality control.

The invention discloses a method for synthesizing isononanal by a microchannel reaction device, which belongs to the technical field of organic chemical industry, and comprises the following steps: preparing a rhodium catalyst, an organic phosphine ligand and diisobutylene mixture into a raw material solution; the synthesis gas and the raw material liquid are pumped into the micro-channel mixer at the same time to be prepared into mixed liquid. Feeding the mixed solution into a micro-channel reactor for reaction to obtain a crude product, cooling the crude product by a cooler, feeding the crude product into a separation tank, emptying a gas phase, conveying a liquid phase to a liquid phase tank through a liquid phase pump for circular reaction, and obtaining a product after target reaction retention time is reached. According to the invention, the micro-channel reactor is adopted to synthesize isononanal, and the liquid-phase circulating system is adopted to reduce the large gas-liquid ratio required by isononanal synthesis to 20: 1 or below, so that the gas-liquid mixing effect is ensured, the reaction system is stable, the preparation time is shortened, and the production cost is reduced. In addition, proper types and proportions of the rhodium catalyst, the organic phosphine ligand and the diisobutylene mixture are matched and selected, so that the conversion rate reaches 90% or above, and the selectivity of isononanal reaches 90% or above.

The invention discloses a boiling water control method capable of utilizing solar auxiliary heating and recycling heat energy. A boiling water control device utilizing solar auxiliary heating and witha function of boiling water heat energy recycling is adopted for implementing boiling water control, solar heat collectors mounted on the top layer of a campus building are utilized for being combined with a heat exchange pipeline, an inner layer closed water storage box, an outer layer closed water storage box and an intelligent terminal, and multiple kinds of water are output so as to meet thedomestic water requirements of students; a temperature sensor is arranged at a water outlet end so as to monitor the temperature of the water outlet end in real time, boiling water heat energy recycling is achieved, and then energy saving and flow matching are achieved; meanwhile, pressure sensors are arranged to monitor pressure in real time, and reference bases are provided for subsequent equipment maintenance; the advantages of environment protection, energy saving, high efficiency, convenience, rapidness and energy circulation are achieved; the performance is excellent; the water saving effect is remarkable; and the application prospects are wide.

The invention discloses a method for synthesizing enamine by adopting a micro-channel reactor. The method comprises the following steps: simultaneously pumping morpholine and n-propionaldehyde into the micro-channel reactor according to a molar ratio of (2.0-10.0): 1, and reacting at a certain reaction temperature under a certain reaction pressure for a certain reaction time; and then carrying outheat preservation, negative-pressure dehydration and negative-pressure rectification to obtain an enamine finished product. The invention also provides a production method of imidacloprid. The production method comprises the following steps: cyclizing enamine to prepare a cyclobutyl compound, and carrying out ammonolysis on the cyclobutyl compound to prepare pyridone; carrying out chlorine addition and phosgene chlorination on pyridone to prepare 2-chloro-5-methylpyridine; carrying out chlorination on the 2-chloro-5-methylpyridine by using chlorine gas to synthesize 2-chloro-5-chloromethylpyridine; and synthesizing imidacloprid from a 1, 2-chloro-5-chloromethylpyridine/N, N-dimethylformamide solution and imidazolidine.