43results about How to "Low degree of modification" patented technology

The invention relates to a method for separating a mixture of catalytic cracking rich gas and a methanol-to-olefin reaction product. According to the method, a catalytic cracking unit, an absorption stabilization unit, a gas fractionation unit and a set of methanol-to-olefin device are provided; the device comprises a reaction unit, a compression unit and a separation hot region; the methanol-to-olefin reaction product is compressed and separated through a pre-depropanizing tower, C4 is non-clearly cut, C1-C4 at the top of the tower are mixed with the catalytic cracking rich gas to obtain a mixture, and the mixture is separated by virtue of the absorption stabilization unit and the gas fractionation unit; residual liquid is separated through the separation hot region to form C4 products, C4-C6 cyclic hydrocarbons and gasoline; all or part of C4 products (containing catalytic cracking byproducts C4) of the gas fractionation unit return to a methanol-to-olefin reaction unit. Compared with the prior art, the method is used for a catalytic cracking and methanol-to-olefin combined device, a separation cold region and a refrigeration unit of a conventional methanol-to-olefin device can be omitted, the treating capacity of a catalytic cracking device is increased to the maximum extent, the economy of the catalytic cracking byproducts C4 is improved through circular cracking, and the operating energy consumption of the methanol-to-olefin device is reduced.

The invention relates to a passive fire prevention protection device for a power battery pack of an electric vehicle. The passive fire prevention protection device comprises a power battery box, and an air vent valve, a cut-off valve, a pressure sensor and a control unit are arranged on the outer wall of the power battery box; the cut-off valve is connected with a vacuumizing device and a fire extinguishing agent device, and the power battery box maintains normal pressure inside; a quantitative macromolecular fire extinguishing agent is injected into the power battery box; the pressure sensor, the fire extinguishing agent device and the vacuumizing device are in signal connection with the control unit; and nitrogen, oxygen and carbon dioxide can penetrate through the air vent valve, while a macromolecular fire extinguishing agent gas can be obstructed. The safety protection measure for the power battery box of the electric vehicle has relatively high protection efficiency, specific energy of the power battery box is not reduced or is reduced as less as possible, and cost increase due to too high improvement of the IP grade of the battery box is avoided.

The invention discloses an after-treatment device and a preparation method for hollow ultrafiltration membrane wires, and belongs to the technical field of wastewater treatment. A spinning solution passes through a metering pump and is connected with a crocheting rope to become RF membrane wires, and the sixteen RF membrane wires pass through a gel tank, a sizing tank, a positive-pressure and negative-pressure cleaning tank and a vacuum drying tank and are collected by a winding drum; the winding drum is connected with middle clamping long-nose pliers, a membrane wire arranging mechanism is connected with a machine body and makes contact with the sixteen RF membrane wires, and a membrane wire payoff and collecting mechanism is connected with the membrane wire arranging mechanism and used for paying off the sixteen RF membrane wires. By means of the after-treatment device and the preparation method, early-stage preparation work for later-stage curtain formation of the hollow ultrafiltration membrane wires is completed, the membrane wire filtering efficiency of water treatment equipment is improved, the membrane wire cleaning environment is improved, the service life of the membrane wires is prolonged, and the appearance of the membrane wires treated through the water treatment equipment is made attractive.

The invention relates to a storage battery anti-theft warner. The invention comprises a signal generating module and a warning module, wherein the signal generating module and a vehicle body are connected with two ends of a storage battery in parallel via a vehicle body power supply connection wire, and the warning module and the vehicle body are connected with two ends of the storage battery in parallel via the vehicle body power supply connection wire; a core is left between two modules by a power line for communication, the signal generating module is realized by an electronic coder and isconnected with the vehicle body into a whole, and the warning module is realized by a matched electronic coder and is connected with the storage battery into a whole. The storage battery anti-theft warner of the invention realizes the storage battery anti-theft and warning function; the warning module is connected with the storage battery into a whole, so that the warner is always in the warning state; once a thief pulls out or cuts off the power supply connection wire, the warner connected with the storage battery is separated from the signal generating module connected with the vehicle body,and the warner gives an alarm, which raises the alarm of passerby and deters criminals; the warner has small power consumption, can warn for a long time, has big deterrent force, has a correspondingelectronic coder and an electronic decoder and has high safety performance, convenient modification and low realization cost.

The invention relates to a waste heat power generating system used in cooperation with an automobile engine. The waste heat power generating system mainly comprises the automobile engine, a cooling circulating power generation system connected with the engine, and an energy storage battery for collecting electric energy generated by the power generation system. The cooling circulating power generation system comprises a circulating pipe connected with the engine and forming a cooling liquid circulating circuit, and an electric generator connected with a power conversion device. A drainage pump, a check valve and a liquid storage tank for storing cooling liquid are arranged in the circuit of the circulating pipeline. Meanwhile, a temperature difference power generating device and a steam power generating device are arranged. By combining steam power generating and temperature difference power generating, the waste heat utilization rate is further increased; more electric energy can be produced compared with a frequently-used cooling system under the same conditions; in addition, according to the technology, only peripheral parts of the engine cooling system are refitted, refitting degree is not high, and market adaptability is high.

The invention discloses a vehicle-mounted structure of a power control device. The invention relates to the technical field of circuit control equipment installation. A driving motor is mounted on a machine body; a power control device is arranged in the side wall of the upper side of the driving motor shell; a connector is arranged in the lower side of the power control device; fixing mechanismsare symmetrically arranged on the side wall of the drive motor shell. Connecting mechanisms matched with the fixing mechanisms are symmetrically arranged on the side walls of the two sides of the power control device. Each fixing structure comprises a fixing plate; the fixing plate is connected to a shell of the driving motor in a welding manner, slots are symmetrically arranged in the sidewalls of the fixing plate, and threaded holes are symmetrically formed in the sidewalls of the end surfaces of the fixing plate. According to the vehicle-mounted structure of the electric power control device, excellent performance of the device shell is guaranteed, and meanwhile, interference of a bolt head used for connection to a connecting wire and a connector can be reduced.

The invention provides a high-speed cache device composed of a processor motherboard, a DDRSDRAM and a QDR SRAM. The QDR SRAM obtained by encapsulating the QDR SRAM particles based on the DIMM interface adopted by the conventional DDR SDRAM can be directly connected with the processor motherboard through the DIMM interface existing in the processor, because the difference in access efficiency to random addresses between QDR SRAM and DDR SDRAM is not directly related to the interface type, QDR SRAM does not affect the high access efficiency features, and because there is no need to change the interface type on the processor motherboard, it can bring higher access efficiency with a lower degree of transformation to meet the needs of special application scenarios such as banking. The invention also discloses a data high-speed read-write terminal provided with the cache device, which has the above beneficial effects.

The invention discloses an ammonia desulphurization process and an ammonia desulphurization system. The ammonia desulphurization process comprises the step of introducing flue gas into a desulphurization column for desulphurization through an ammonia method, wherein the flue gas is subjected to pre-cooling spraying in an inlet area of an absorption column in the desulphurization column, and a water source used in the pre-cooling spraying operation is preferably circulating water in a circulating tank of the desulphurization column. Through pre-cooling spraying operation in the inlet area of the absorption column, the situation that aerosol particles at a desulfurization outlet of an ammonia desulfurization process seriously exceed the standard is greatly relieved. According to the process,pre-cooling spraying is ingeniously carried out in the inlet area of the absorption column, the spraying water amount is controlled according to the inlet temperature and the slurry concentration ofthe absorption column, the effect is controllable, meanwhile, the transformation degree is small, the construction period is short, and cost is low.

The invention relates to the technical field of power transmission, in particular to an optical storage micro-grid flexible networking system for a thermal power plant. The optical storage micro-grid flexible networking system for the thermal power plant comprises a thermal power plant unit which comprises a 6kV station bus and is used for performing power transmission on a power grid system; comprising a photovoltaic-energy storage-low-voltage electrical load micro-grid unit of a 400V integrated energy bus and is used for performing power transmission on the thermal power plant unit through a soft switching unit and a voltage transformation unit; and the high-voltage side of the soft switch unit transformation unit is connected to a 6kV station service bus, and the low-voltage side of the soft switch unit transformation unit is connected to a 400V comprehensive energy bus, and is used for providing a power transmission channel when the thermal power plant unit and the photovoltaic-energy storage-low-voltage electrical load micro-grid unit carry out power transmission. According to the technical scheme, the optical storage micro-grid flexible networking system for the thermal power plant is low in equipment failure rate, flexible in control mode and high in power supply reliability.

The invention relates to small storage type double-layer stereo parking equipment with an insertion-and-extraction type parking frame and a control method. The parking equipment is mainly composed ofa warehouse, a lifting and rotating mechanism, a travelling mechanism and a ground mechanism and further comprises a camera recognition module, an ultrasonic sensor, a human infrared sensor and an infrared aligning module or a laser aligning module mounted near wheels. Parking place layer additional arrangement is achieved through the insertion-and-extraction type comb parking frame and ground supporting columns, a storage warehouse of the comb parking frame is matched, the one-to-one limitation of an original small stereo parking device is overcome, the one-to-multiple parking place layer-additionally-arranged expansion of the small stereo parking device is achieved, the transforming extent on an original parking lot is greatly decreased, and the cost of building the stereo parking lot isreduced. The capacity of the comb parking frame in the warehouse is adjustable, the small storage type double-layer stereo parking equipment can be suitable for parking lots with different sizes in various new and old communities, the application range is wide, and operation is easy, meanwhile the cost input of building of the stereo parking lots is reduced, and the very good application and popularization prospects are achieved.

The invention discloses a reservoir ecological scheduling method considering suitable growth of downstream agricultural crops. A specific crop growth suitability model is established according to statistics of tracking and monitoring data of a specific crop growth period in a reservoir area. Then, the main drainage pipelines of the reservoir are subjected to classified transformation and control.According to the height difference between each drainage main pipe and the planting area, water pumps are installed on the corresponding low-water-level drainage main pipes, electromagnetic valves orwater pumps are installed on the high-water-level drainage main pipes, electromagnetic valves or water pumps are installed on the drainage branch pipes of the planting areas of all the reservoir areasrespectively, the opening degrees of the water pumps or the electromagnetic valves of the different drainage main pipes are controlled, and control over the water temperature and the flow of the drainage main pipes is achieved. According to the optimal temperature and humidity adjustment parameters of different growth periods of crops, different gradients and different water temperatures of the reservoir are regulated and controlled and then injected into the planting area, and then the purpose of regulating and controlling the temperature and humidity of the planting area as the growth environment is achieved. And ecological scheduling of planted crops is carried out through reservoir resources.

The invention discloses an application of m6A modified protein in preparation of a toxoplasma gondii infection resisting medicine, and belongs to the field of molecular biology. The application achieves the purpose of resisting toxoplasma gondii infection by regulating the expression level of the m6A modified protein and regulating the expression of an inflammatory factor TNF-alpha. The invention finds that m6A modification sites exist on human TNF-alpha mRNA, after toxoplasma gondii infection, the modification degree of the modification sites on the TNF-alpha mRNA can be reduced by up-regulating expression of demethylase FTO, and degradation of the TNF-alpha mRNA is reduced and TNF-alpha expression is induced under the help of recognition protein YTHDF2. From the perspective of m6A methylation modification for the first time, the invention discloses a molecular mechanism of TNF-alpha expression induced by toxoplasma gondii infection, and changes of m6A modification sites and modification levels on TNF-alpha after human macrophages are infected by toxoplasma gondii, and clarifies a mechanism of regulating TNF-alpha expression by m6A modification.

The invention discloses an ultrathin electronic glass forming device and a forming method. The ultrathin electronic glass forming device comprises a forming slot, a forming medium feeding system, a detection control device, a heating device and a forming edge roller, wherein the forming slot is divided into a high-temperature forming section and a low-temperature forming section in turn along the length direction of the forming slot and the running direction of the glass liquid; to-be-formed glass liquid is placed above the forming slot; a pothook is arranged at the upper part in the forming slot; a two-layer forming medium mixer is fixed and locked on the pothook; a plurality of purging devices and a water draining valve are arranged at the bottom in the forming slot; and vent valves used for releasing pressure are arranged on the two sides of the forming slot. The forming device and the forming method can be used for achieving the following objectives: (1) the thickness of the electronic glass after once forming is below 0.5mm; (2) the electronic glass can meet various stipulations in national standards and can meet the subsequent processing use requirements; and (3) the forming process is nontoxic and pollution-free, and meanwhile, the forming medium is low in cost.

The invention provides a power plant production region weather data acquisition method, system, equipment and medium, weather forecast data from an internet region is transmitted to a production region through a reverse gatekeeper after format conversion and certificate encryption, and then certificate verification and decryption are performed, so that secure interaction of internal and external network data can be realized, and the safety of the data is improved. And the potential safety hazard during data interaction is greatly reduced. Operators in a large production area can adjust boiler output in time according to real-time weather data, energy conservation and emission reduction are achieved, economic benefits are improved, and the goals of carbon peak reaching and carbon neutralization are promoted. The method has high application value in the actual production process of a thermal power plant, and has the potential of large-scale popularization and application.

The invention relates to a key value data processing method and device, electronic equipment and a storage medium. The method comprises the steps that a to-be-processed task and meta information corresponding to the to-be-processed task are acquired; the to-be-processed task is processed through the mapping task in the calculation engine to obtain key value data, the key value data are transmitted to shuffling processing nodes, and the shuffling processing nodes are nodes independently packaged outside the calculation engine; and running sorting logic corresponding to the meta-information through the shuffling processing node so as to sort the key value data. According to the scheme provided by the invention, the key value data generated by various calculation engines are processed by adopting a general sorting mechanism, so that the sorting requirements of the key value data of the various calculation engines can be met at the same time.

The invention discloses a method and system for hiding reversible information of a dual-channel audio based on two-dimensional histogram. The method comprises the following steps of: acquiring reversible information and a dual-channel audio file; respectively calculating a prediction error value of a left channel and a prediction error value of a right channel for elements at the same position of different sound channels; constructing a prediction error pair based on the prediction error value of the left channel and the prediction error value of the right channel; constructing a prediction error histogram based on the prediction error pair; and adaptively moving the prediction error histogram, and embedding the reversible information to obtain a dual-channel audio with hidden reversible information. According to the invention, the modification degree of an original sample due to the embedded information is reduced while an embedding capacity is improved. Experiments show that compared with an existing embedding method, the method has better embedding performance in the aspects of audio fidelity and capacity under the same capacity.