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256results about How to "Good technical effect" patented technology

Epoxypropane purifying method

The invention relates to an epoxypropane purifying method. The problems of low epoxypropane yield and large extractant loss due to the entrainment of epoxypropane and an extractant in the material flow from the top of an extraction distillation tower in the prior art are mainly solved. The method comprises the following steps: 1, a crude epoxypropane solution enters the extraction distillation tower to obtain a material flow 2 at the tower top and a material flow 3 at the tower bottom; 2, the material flow 3 enters a solvent recovery tower to obtain an epoxypropane product at the tower top and an extractant flow 5 at the tower bottom, and the flow 5 is divided into a flow 6 and a flow 7; 3, the material flow 2 is condensed, and the condensed flow 2 enters a phase splitter and undergoes oil and water separation to obtain an oil layer 8 and a water layer 9; 4, the oil layer 8 and the flow 6 return to the top of the extraction distillation tower; and 5, the flow 7 enters the lower portion of a water washing tower and the water layer 9 enters the upper portion of the water washing tower to obtain wastewater flow at the tower bottom and a flow 11 at the tower top, and the flow 11 enters the phase splitter. The method well solves the problems and can be used in the industrial production of epoxypropane purification.
Owner:CHINA PETROLEUM & CHEM CORP +1

Partially-chilled dry coal powder or coal water slurry gasification system and gasification process

The invention discloses a partially-chilled dry coal powder or coal water slurry gasification system. The partially-chilled dry coal powder or coal water slurry gasification system is characterized by comprising a gasifier, a heat recovery apparatus, a dust removal device, a washing component and a grey water treating unit which are sequentially connected through pipelines, wherein the gasifier comprises a hearth, a chilling apparatus coaxially arranged at the top part of the hearth and a synthetic gas delivery part connected with the output end of the chilling apparatus; the hearth is provided with at least one nozzle; the synthetic gas delivery part is provided with an exhaust port; the heat recovery apparatus is connected with the exhaust port of the synthetic gas delivery part, and the output end of the heat recovery apparatus is connected with the input end of the dust removal device; the washing component comprises a washing tower; the output end of the dust removal device is connected with the input end of the washing tower through a pipeline; an output port of the washing tower is used for outputting crude synthetic gas, and an outlet at the bottom of the washing tower is connected with an inlet of the grey water treating unit through a pipeline; and the grey water treating unit is used for outputting waste water. The invention also discloses a gasification method. The invention has the advantages of improved gasification efficiency and high energy utilization rate.
Owner:NO 711 RES INST CHINA SHIPPING HEAVY IND GRP

Method for separating p-xylene from mixed xylene

ActiveCN101941882AReduce cooling energy consumptionGood technical effectCrystallisation purification/separationChemistryMother liquor
The invention relates to a method for separating p-xylene from mixed xylene, and mainly solves the problem of high energy consumption during the separation in the prior art. The method comprises the following steps of: crystallizing the mixed xylene in a crystallizer and allowing the crystal magma to flow out from the bottom of the crystallizer; separating the crystal magma by a solid-liquid separator to obtain p-xylene crystals and crystallized and filtered mother liquor; melting the p-xylene crystals after heat exchange, wherein 5 to 30 weight percent of the p-xylene is returned to the solid-liquid separator to serve as washing solution, and 70 to 95 weight percent of the p-xylene serving as a product enter a product can; the crystallized and filtered mother liquor is divided into two streams, of which 5 to 95 weight percent of the crystallized and filtered mother liquor of the first stream is returned to the crystallizer, and 5 to 95 weight percent of the crystallized and filtered mother liquor of the second stream is fed into a mother liquor can after exchanging heat with the mixed xylene; clarifying a part of crystal magma in the crystallizer to obtain crystallized clear mother liquor; allowing the crystallized clear mother liquor to flow out of the side face of the crystallizer; and packaging the crystallized clear mother liquor in the mother liquor can after exchanging heat with the mixed xylene. The technical scheme for separating the p-xylene from the mixed xylene solves the problem well and can be used in the industrial production of the p-xylene.
Owner:CHINA PETROLEUM & CHEM CORP +1

Categorical regression mode based operating condition self-adaptive equipment health degree assessment method

The invention discloses a categorical regression mode based operating condition self-adaptive equipment health degree assessment method. The method includes: acquiring operating state data, operatingcondition information data and design parameter data of each critical component of equipment; processing the operating state data to obtain a state characteristic database, and matching the operatingcondition information data to obtain an operating condition information database; establishing an operating condition recognition model and an operating condition self-adaptive compensation model forstate characteristic data and operating condition parameter data; on the basis of the models, sequentially performing operating condition classification and recognition and regression self-adaptive compensation processing to obtain operating condition desensitized characteristic data; calculating a health degree index of each component on the basis of the operating condition desensitized characteristic data; calculating and assessing integral equipment health degree on the basis of the health degree index of each component; predicting equipment remaining service life on the basis of the integral equipment health degree, the operating condition information data and the design parameter data. The method has advantages that effectiveness in self adaption to multi-operating-condition modes ofequipment, and accuracy in equipment health degree assessment and remaining service life prediction is improved.
Owner:HANGZHOU ANMAISHENG INTELLIGENT TECH CO LTD

Vehicle height excess detecting and alarming device

InactiveCN102074111AGood technical effectUltra-high detection is accurate and reliableRoad vehicles traffic controlAutomotive engineeringSolar power
The invention relates to a vehicle height excess detecting and alarming device. The device comprises a main controller, a power supply, a vehicle image shooting and license plate number recognition system, a laser signal transmitter, a laser signal receiver, an alarming display system and a remote communication system, wherein the remote communication system is communicated with the main controller in wireless communication modes of global system for mobile communication (GSM) and general packet radio service (GPRS) so as to transmit and receive information; the power supply is a solar power supply system, and comprises a solar panel, a solar controller, an inverter and a storage battery pack; the vehicle image shooting and license plate number recognition system comprises a camera; and avideo acquisition card is arranged in the housing of the main controller. The device has the advantages that: the device can accurately and reliably detect the height excess of a vehicle and has the license plate recognition rate of over 95 percent to a super high vehicle, the recognizing time is less than 0.4s, and the electronic light emitting diode (LED) display screen of a large screen is clear and striking and can be seen in the distance of over 100 meters; and the main controller runs reliably and adapts to outdoor extremely-high or extremely-low temperature using environment.
Owner:WUHAN GREAT SEA HI TECH

Method for external measurement of settlement of foundation of storage tank

The invention relates to a method for external measurement of settlement of the foundation of a storage tank. The method for external measurement of settlement of the foundation of the storage tank mainly solves the problem that in the prior art, measurement of all coordinate points in the circumferential direction of the storage tank can not be achieved at one position. According to the method for external measurement of settlement of the foundation of the storage tank, the height of the coordinate of a foundation point of the storage tank is measured by means of a total station, communication between a data recorder and the total station is established, data obtained through measurement of the total station are stored automatically, a prism is adopted to serve as a measurement point for the height of the foundation of the storage tank and is placed on the foundation of the storage tank, and the prism is moved to the next position each time a settlement point is measured; after settlement measurement of one station measurement point is completed, measurement is conducted on another station, at least three groups of switching points are arranged, coordinate points of different measured stations are converted into the same coordinate system through coordinate transformation, and then measurement of the coordinates of the settlement points is well completed. The method is used for external measurement of settlement of the foundation of the storage tank.
Owner:CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +1
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