18results about How to "Reduced purge time" patented technology

The inventive concept relates to a genetically modified cell capable of producing oligosaccharides, preferably HMOs, comprising a recombinant nucleic acid encoding a putative transporter protein of the MFS superfamily; and a method of producing oligosaccharides (one or more), preferably HMOs, using said cell.

The invention discloses an anesthetic waste gas treatment device, and relates to the technical field of waste gas treatment, the anesthetic waste gas treatment device comprises a box body, an air exhaust structure mounted at the top of the box body, an exhaust pipe mounted on the outer wall of one side of the box body, a filter mounted on the outer wall of one side of the box body, and a treatment tank; the gas injection mechanism is used for dispersing and injecting the anesthetic waste gas into the solution in the treatment tank; the butt joint mechanism is used for being in butt joint with the gas injection mechanisms on the treatment tanks in sequence; the transposition mechanism is used for carrying out transposition on each treatment tank; the gas control mechanism is used for controlling waste anesthetic gas to be continuously injected into the solution; according to the waste anesthetic gas treatment device, extracted waste anesthetic gas can be repeatedly injected into a solution in a dispersed manner through the gas control mechanism, so that the waste anesthetic gas is in full contact with the solution, the effect of full purification treatment of the waste anesthetic gas is achieved, and the purification time of the waste anesthetic gas is not increased; the purpose that the anesthetic waste gas can be purified for multiple times without additionally increasing the purification time is achieved.

A liquid cargo ship cabin sweeping system meeting MARPROL requirements is characterized in that a liquid cargo deep-well pump and a heater are located in a cargo cabin area, the liquid cargo deep-well pump is provided with a cabin sweeping connector and a liquid cargo connector, the liquid cargo connector is connected with an inlet of the heater through a pipeline, the cabin sweeping connector is connected with a cabin sweeping pipeline and a liquid cargo discharging main pipe, and the liquid cargo discharging main pipe is connected with a liquid cargo collecting pipe area main pipe; the liquid cargo collecting area main pipe is provided with a liquid cargo by-pass pipeline, and the sweeping pipeline is communicated with the liquid cargo by-pass pipeline. A liquid cargo pump sweeping discharge valve is arranged at the position, close to the sweeping connector, of the sweeping pipeline, and a liquid cargo pump sweeping discharge valve is arranged at the position, close to the sweeping connector, of the liquid cargo discharge main pipe. According to the system, the special small-opening sweeping pipeline is additionally arranged in the system, liquid cargos are swept from the collecting pipe area to the cargo hold area and discharged out of the main pipe, the accumulated liquid cargos are discharged into the small-opening sweeping pipeline, the pipeline sweeping time is shortened, the workload of operators is reduced, the good sweeping effect can be achieved, and the standard requirement is met.

The invention discloses a PM2.5 control method and system based on an air purifier, a medium and a program product, and the method comprises the steps: collecting indoor PM2.5 concentration data and indoor temperature field distribution data; on the basis of the concentration data, vortex distribution of the indoor PM2.5 concentration field is calculated; determining a vortex center position according to the vortex degree distribution, and establishing a polar coordinate system taking the vortex center as an original point; decomposing the concentration field into a radial component and a tangential component in the polar coordinate system, and calculating a radial concentration gradient and a tangential concentration gradient; calculating indoor thermal convection intensity according to the temperature field distribution data, and constructing a PM2.5 migration potential energy field in combination with a radial concentration gradient and a tangential concentration gradient; identifying potential energy barriers and potential well positions in the migration potential energy field; calculating an optimal purification channel according to the space distribution characteristics of the potential energy barrier and the potential well position; the mounting position and the air supply angle of the air purifier are determined based on the optimal purification channel; and the air purifier is controlled to supply air in the direction of the optimal purification channel. And the accuracy and the reliability of the purification effect are improved.

The invention relates to a liquid chromatogram-tandem mass spectrum determination method for herbicide imazapyr and haloxyfop-R-methyl in aquatic products, through a simple sample pretreatment method and an instrument analysis method, the detection sample range is increased to various aquatic product matrixes such as fishes, shrimps, crabs and shellfishes, and the method is simple, convenient, rapid and high in sensitivity. The method has the advantages of low reagent dosage, high sensitivity, low cost, high accuracy and good stability. According to the method, a technical means is provided for evaluating the toxic effect of the Spartina alterniflora herbicide, i.e., the melatryn and the cyhalofop-ethyl on aquatic organisms and monitoring and evaluating the risk of the Spartina alterniflora.

The utility model discloses an on-line flushing system for a heat exchanger of a heavy oil processing device, which relates to the technical field of heavy oil processing in petrochemical industry and comprises a diesel oil tank and a constant diesel oil outlet device, the constant diesel oil outlet device is arranged on one side of the diesel oil tank, and a first connecting pipe is arranged between the constant diesel oil outlet device and a diesel oil pipe. A second connecting pipe is arranged on one side of the first connecting pipe, the two ends of the second connecting pipe are communicated with a device starting circulation line and a crude oil pump respectively, a liquid outlet of the crude oil pump is communicated with a crude oil inlet device through a third connecting pipe, and a fourth connecting pipe is communicated between the first connecting pipe and the second connecting pipe. A first valve body and a second valve body are arranged at the two ends of the fourth connecting pipe correspondingly. The device disclosed by the utility model can effectively reduce the blowing time and steam consumption, realize closed blowing and environment-friendly shutdown of the device, effectively reduce peculiar smell on site and avoid environmental pollution.

The present invention discloses a method for feeding a furnace body to be fed with a feeding device using a clean vacuum environment, the feeding device comprises a feeding tank, the feeding volume of the feeding tank is greater than or equal to the feeding volume of the furnace body to be fed, the feeding tank is provided with a feeding port connected to the feeding port of the furnace body to be fed, the feeding tank and the furnace body to be fed are detachably connected, a feeding isolation valve is provided at the feeding port, a feeding isolation valve is provided at the feeding port of the furnace body to be fed, the feeding tank and the furnace body to be fed are both provided with a vacuum interface and a gas replacement interface, the vacuum interface and the gas replacement interface are both provided with a purification isolation valve, a weighing sensor is provided in the feeding tank, the outer wall of the feeding tank has a display, the weighing sensor is electrically connected to the display, and the method comprises: a loading process, a purification process, a feeding process, and a withdrawal process. The method can be fed uniformly, the required feeding amount can be completed at one time, the purification is uniform, the purification space is small, the purification time is saved, and automation is realized.

The present application relates to sewage treatment technical field, specifically to a kind of acrylonitrile sewage treatment device, comprising: microbial purification tank, exhaust mechanism, the exhaust mechanism has two and symmetrically set in the two sides of the inner wall of microbial purification tank width direction, the exhaust mechanism includes the cavity plate fixedly connected in the inner wall of microbial purification tank. By cavity plate, partition block and air separation assembly in exhaust mechanism, air can be injected and extracted into microbial purification tank, so as to provide corresponding purification environment for aerobic microorganism or anaerobic microorganism to purify sewage, and then realize that when injecting air, air exposure area and immersion area can inject air into microbial purification tank simultaneously to provide sufficient oxygen for aerobic microorganism to purify sewage, help its efficient decomposition of pollutants in sewage, while when extracting air, air separation assembly disconnects the communication of air exposure area and immersion area, so that suction airflow is only discharged from air exposure area, avoid sewage from flowing out with cavity plate, while avoiding suction airflow from immersion area to interfere with anaerobic environment in tank.

The utility model provides a gas-phase reactant supply system and thin film deposition equipment. The gas-phase reactant supply system comprises a first supply module and a first purging module. The first supply module is used for providing a gas-phase first reactant for the process chamber. The first purging module comprises a first purging air source, a first storage tank and at least one second storage tank. The first purge gas source is connected with the first storage tank and the gas inlet of the at least one second storage tank so as to input first purge gas into the first storage tank and the gas inlet of the at least one second storage tank. A gas outlet of the first storage tank is connected with the process chamber so as to provide first purging gas with preset first gas pressure for the process chamber; the gas outlet of the at least one second storage tank is connected with the gas inlet of the first storage tank, so that when the actual gas pressure in the first storage tank is lower than the first gas pressure, supplemented first purging gas is provided for the first storage tank.

The present invention relates to the field of air purification, and in particular to an air purification device for a toilet, comprising: a filter, arranged at the lower end of a first shell; a negative oxygen ion generating device is arranged in the first shell, which includes an ionizing device and an airflow generating device, the ionizing device is used to ionize the outside air to generate negative oxygen ions, and the airflow generating device is used to blow the negative oxygen ions to the second shell; the second shell is provided with four airflow channels; a detection device is arranged in the area to be purified, and is used to collect the real-time temperature in the area to be purified; a controller is respectively connected to the detection device, the ionizing device and the airflow generating device. The present invention generates negative oxygen ions by ionizing air to enter the purification area to remove odors, and the detection device determines the spread speed of the odor by detecting the temperature, so that the controller can dynamically adjust the working state to cope with different situations, which is conducive to the efficient use of energy and the rapid elimination of odors.

The invention relates to the technical field of filtration aiding processes, and provides a nanocellulose and composite cellulase combined filtration aiding process which comprises the following steps: S100, respectively preparing nanocellulose and composite cellulase; s200, pretreating the to-be-filtered liquid, sequentially adding nano cellulose and compound cellulase, and then stirring to obtain the treated to-be-filtered liquid; and S300, sequentially carrying out filtering treatment on the treated to-be-filtered liquid. According to the nanocellulose and composite cellulase synergistic filtration aiding technology, through the synergistic effect of nanocellulose and composite cellulase, the filtration efficiency is improved, the enzyme preparation process is optimized, the stability of the filtration process and the purity of filtrate are improved, and the nanocellulose and composite cellulase synergistic filtration aiding technology is high in environmental friendliness, wide in application range and suitable for industrial production. The problems of low efficiency, high energy consumption, non-ideal filtering effect and the like in a traditional filtering method can be solved.

The invention discloses a shutdown purging method for a fuel cell, which enables the shutdown purging time of the fuel cell to be reduced to 6-8 minutes and greatly shortens the purging time of the fuel cell. The method comprises the following steps that S1, after a fuel cell test is completed, the electronic load is reduced to 0.1 A / cm < 2 >, the minimum air flow is adjusted to be supplied according to the air flow with the current density of 0.3-0.6 A / cm < 2 >, and the stoichiometric ratio of a hydrogen device to air is 1: (3-4); s2, setting the back pressure of a cathode and an anode to be 0 kPa; s3, reducing the load until the current of the fuel cell is 0.01 A / cm < 2 >-0.05 A / cm < 2 >, closing air, and introducing nitrogen through a mass flow meter of an air system; s4, when the minimum single voltage reaches 0.4 V or below, humidification of the air system is closed, and meanwhile, a current load is closed; s5, closing hydrogen and humidification of the anode, and introducing nitrogen through a mass flow meter of a hydrogen system on the anode side; s6, nitrogen is introduced into the two sides of the cathode and the anode for purging for 2-4 min; and S7, the temperature of the cooling system is set to be 0 DEG C, the flow is set to be 0 SLPM, and purging is stopped.

The present invention provides a pig farm and a blue ear disease purification scheme thereof, the pig farm includes a fattening area, a breeding area and a nursery area, and also provides a pig house system in the pig farm, including an insulation door, an air filter, an air conditioner, an air inlet, an air delivery pipeline, a negative pressure fan, a sterilization wall, an aluminum-magnesium-manganese bellows, a trench fan, a pig house, a slatted plate, and a lower trench. The present invention also provides a blue ear disease purification scheme formed by the pig farm through introduction, group closure, unified immunization and biological monitoring. The present invention can effectively improve the pig farm environment through the application of a precise vertical ventilation system, insulation mortar, and temperature-adjusting wet curtains, and then combined with the blue ear disease purification scheme of the present invention, it can effectively achieve the purification of blue ear disease in pigs and shorten the purification time.

The present invention relates to a gas supply module and a technology of a substrate processing device including the same. The gas supply module of this embodiment may include: a first module having a first gas inlet channel for transmitting a first process gas; a second module having a second gas inlet channel for transmitting a second process gas; and a third module, which combines the first module and the second module and separates the first process gas transmitted through the first gas inlet channel and the second process gas transmitted through the second gas inlet channel, respectively, so as to diffuse and distribute the gas supply lines connected to the plurality of substrate processing spaces.

The invention discloses a method for purifying an aluminum alloy under the combined action of a pulsed magnetic field and a foamed ceramic filter, and belongs to the technical field of aluminum alloy material impurity removal, and the method comprises the following steps: S1, smelting the aluminum alloy to obtain an aluminum alloy melt; s2, the aluminum alloy melt is filtered through a foamed ceramic filter; s3, when the aluminum alloy melt flows through the foamed ceramic filter, pulse magnetic field treatment is applied to the aluminum alloy melt, and an aluminum alloy product is obtained; according to the method, by combining pulsed magnetic field treatment and the mechanical blocking effect of the foamed ceramic filter, fine inclusions with the size smaller than 5 micrometers in the aluminum alloy melt can be more effectively removed, the purification effect is remarkably improved, meanwhile, gathering and separation of impurities in the melt can be promoted through the effect of the pulsed magnetic field, and the purification efficiency is further improved.

The utility model relates to the technical field of water filtration treatment, and discloses an industrial water filter which comprises a case, the case is in a hollow rectangular box shape, the top of the case is fixedly connected with a water inlet, the water inlet is in a hollow rectangular tube shape with the bottom gradually shrunk, the side wall face of the case is fixedly connected with a water outlet valve, and the water outlet valve can be communicated with the interior of a case cavity. A water storage tank is fixedly connected into a cavity of the machine box and is in a hollow rectangular box shape, a rotating motor is fixedly connected to the top of the water storage tank, the water outlet valve can further communicate with the interior of the cavity of the water storage tank, a synergistic structure is arranged in the cavity of the water storage tank and comprises a liquid adding pipe and a stirring rod, and the liquid adding pipe is rotationally connected into a liquid adding pipe cavity. The stirring rod is fixedly connected to the bottom of the liquid adding pipe, and the synergistic structure can reduce the water treatment time of the device.

The invention discloses a metal derusting machine for a glass glaze anti-corrosion pipeline for oil exploitation and a machining method, and relates to the technical field of oil exploitation pipelines. The metal derusting machine comprises a mounting pipe frame, a driving part is fixedly mounted on one side of the mounting pipe frame, and a gas connecting pipe is fixedly connected to the side, close to the middle of the mounting pipe frame, of the driving part; a self-rotating mechanism is arranged, the walking wheels and the rotating flat plate which are arranged in an inclined mode are utilized before rust removal, after the rust removal machine enters the inner wall of a pipeline, the walking wheels and the rotating flat plate are arranged in a rotating mode, and the adjusting supports are fixedly connected to the outer walls of the two sides of the mounting pipe frame. The walking wheels and the rotating flat plate spirally walk on the inner wall through advancing thrust and friction force, the wood fiber wiping blocks and the arc-edge scraping plates on the rotating flat plate are driven to synchronously slide on the inner wall of the pipeline, residues and oil stains existing on the inner wall of the pipeline without sand blasting are removed, residue blocking or sand grain slipping is prevented, it is guaranteed that the inner wall is uniform after sand blasting, and sand blasting efficiency is improved. And the sand blasting quality is improved.

The present invention relates to a method for determining the residual amount of perfluoroalkyl acid pollutants in vegetables. The present invention aims to solve the problems of cumbersome operation, low efficiency, poor accuracy, significant matrix effect, and weak matrix applicability in existing methods and technologies for analyzing perfluoroalkyl acid pollutants in vegetables, and establishes a new method through innovative inventions and technical optimization in the pretreatment and instrumental analysis process. The established method will be suitable for rapid screening and precise quantitative analysis of perfluoroalkyl acid pollutants in vegetables with large sample volumes and on a large scale, and will greatly improve the efficiency of analysis and detection, and effectively improve accuracy.