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33results about How to "Small working volume" patented technology

Continuous device for preparing benzaldehyde midbody and application thereof

The invention provides a continuous device for preparing a benzaldehyde midbody and application thereof. The continuous device comprises a continuous lithiation reaction device and a continuous formylation device. The continuous lithiation reaction device is provided with a first feeding inlet and a first discharging outlet, the first feeding inlet is used for adding a reaction raw material and anorganic lithium reagent, and the first discharging outlet is used for continuously discharging a product system obtained after a continuous lithiation reaction; the continuous formylation device is provided with a second feeding inlet, a formylation reagent inlet and a second discharging outlet, the second feeding inlet and the first discharging outlet are communicated so that the product systemobtained after the continuous lithiation reaction can be continuously conveyed into the continuous formylation device, the formylation reagent inlet is used for adding a formylation reagent, and the second discharging outlet is used for continuously discharging the product system obtained after the continuous formylation reaction. By adopting the device, the reaction selectivity is improved, energy consumption is lowered, and meanwhile industrial production is facilitated.
Owner:ASYMCHEM LIFE SCI TIANJIN

Repeated pressure boosting internal combustion engine

The invention relates to an internal combustion engine and provides a repeated pressure boosting internal combustion engine which can separately complete an energy conversion process and is high in energy utilization efficiency, low in fuel consumption rate and high in speed, torque and power. According to the main principle of the repeated pressure boosting internal combustion engine, the suction process, the compression process, the acting process and the exhaust process are separately conducted in two air cylinders which are different in size, effective pressure in the air cylinders is increased at the time of acting through self structures, as a result, the combustion process is improved, and thermal efficiency is also improved; moreover, matched with a turbocharger, a compression air cylinder 2 can suck in more air in a high speed stage to support the combustion of fuel. The repeated pressure boosting internal combustion engine has the advantages of being simple in structure, high in thermal efficiency, wide in operation adjustable range, low in oil consumption, good in acceleration performance, sufficient in power at a low speed, and strong in power at a high speed; moreover, acting frequency is doubled, the rotating speed range is substantially expanded, and therefore vibrations are reduced; due to the supercharged effect after combustion, the combustion process is improved, the fuel can be combusted more sufficiently and thoroughly, and the emission performance is better.
Owner:赵强国

Adsorption reactor and method for separating high-boiling-point coagulable components from mixed gas

PendingCN108579332AMeet the needs of different adsorbatesMeet the needs of different operating conditionsGas treatmentDispersed particle separationFiberDesorption
The invention provides an adsorption reactor for separating high-boiling-point coagulable components from mixed gas. The adsorption reactor for separating the high-boiling-point coagulable componentsfrom the mixed gas comprises a columnar reactor shell, a front ventilating opening and a rear ventilating opening, and the front ventilating opening and the rear ventilating opening are separately formed in the two ends of the shell. The adsorption reactor for separating the high-boiling-point coagulable components from the mixed gas is characterized in that an ultra-fine fiber filler and a pressing device are arranged in the adsorption reactor, and the ultra-fine fiber filler is filled in the shell; and the pressing device comprises a driving unit and a pressure plate, and the driving unit drives the pressure plate to press or loosen the ultra-fine fiber filler. The invention simultaneously provides a method for separating the high-boiling-point coagulable components from the mixed gas. The method comprises the following steps: when adsorption operation is carried out, driving the pressure plate to press the ultra-fine fiber filler by the driving unit; when desorption operation is carried out, driving the pressure plate to move reversely by the driving unit, and loosening the ultra-fine fiber filler; and carrying out coagulation treatment on the desorbed gas to obtain adsorbed matters which are separated and recycled. The adsorption reactor for separating high-boiling-point coagulable components from mixed gas has the advantages of high adsorption efficiency, long adsorbent regeneration period, convenience in regeneration and flexibility in operation.
Owner:ZUNYI NORMAL COLLEGE

Method and device for synthesizing 3,4-dioxymethylene mandelic acid by enhanced emulsification

The invention discloses a method for synthesizing 3,4-dioxymethylene mandelic acid by enhanced emulsification. According to the method, gas is introduced into a reaction system in mixed acid preparation and emulsification synthesis processes, so that a large quantity of bubbles are produced in the reaction system, the surface area of reactants is enlarged, the contact area between the reactants isincreased, and the reaction conversion rate and yield can be increased. By use of the homogenization effect of the emulsification process, 1,3-benzodioxole is uniformly dispersed in glyoxylic acid with tiny droplets, the contact efficiency of the reactants can be improved, and the product purity and yield can be increased. A product is used as an emulsifier, a stable emulsion system can be formedwhile no substances outside the reaction system are introduced, and the product separation process is simpler and easier. An emulsified solution is dispersed into tiny droplets by a loop reactor witha Venturi ejector and a circulating suspended bed reactor in the reaction process to form a microreaction system, the heat and mass transfer efficiency is improved, and the problem of production of byproducts due to non-uniform heat transfer is inhibited.
Owner:山东天大泰泽环保科技有限公司

A small all-electric trenchless horizontal directional drilling rig

A small-sized full electric non-excavation horizontal oriented drill rig belongs to a non-excavation construction machinery for paving, replacing and repairing various underground pipelines. The technical key points are that the small-sized full electric non-excavation horizontal oriented drill rig comprises a cutting drill bit (1), a drill bit rotary cutting driving device, a buffer device, a soil rear postposition spiral conveying device and a drill rod propelling pulling-back device; the cutting drill bit (1) is of a hollow drill bit; the drill bit rotary cutting driving device is arranged behind a cutting drill bit conical drum (2); the buffer device is connected behind the drill bit rotary cutting driving device; the soil postposition spiral conveying device is arranged on the axis of the cutting drill bit (1); the rear end of the last section of the soil postposition spiral conveying device is connected with the drill bit propelling pulling-back device connected with a power supply. The output of the postposition spiral soil cutting adopts full electric driving, the structure can be simplified, and the production cost is reduced; a work pit is firstly excavated during work, and the holing and pulling-back are performed at one step in the horizontal direction; the guiding and hole expanding processes are omitted, the construction progress can be accelerated, the construction efficiency can be improved, and the small-sized full electric non-excavation horizontal oriented drill rig is widely used for paving and updating urban and rural underground pipelines.
Owner:XIANGTAN UNIV
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