38results about How to "Solve the problems" patented technology

The invention discloses a high-efficiency wet-type electric dust removal and desulfuration system and a process. A wet-type electric dust remover is arranged above a demister in a desulfuration tower. First of all, the demister is used for pre-removing mist drops and dust from clean smoke; the wet-type electric dust remover is used for performing fine treatment on the clean smoke; therefore, an extremely high environment-friendly discharging requirement is met; and the desulfuration efficiency is guaranteed, the efficiency of a dust removal system of the desulfuration tower is improved, and the dust discharge concentration at the outlet of the desulfuration tower is reduced, so that the latest discharge standard required in China is met. According to the wet-type electric dust remover, the problem of gypsum rain can be solved; various pollutants can be removed at the same time; furthermore, a water accumulation plate is arranged between the demister and the wet-type electric dust remover and used for collecting and recycling washing water of the wet-type electric dust remover, so that the washing water of the wet-type electric dust remover cannot directly enter into a neutralization oxidation pond of the desulfuration tower; and therefore, the water balance of the whole system is guaranteed.

The invention discloses a permanent magnet motor position-less direct torque control method based on a novel flux observer. Based on a disturbance observer, a voltage model method is improved by a current model flux calculation method, and the novel flux observer is designed. The novel flux observer inputs voltage u alpha and u beta, current i alpha and i beta, permanent magnet flux linkage psi fand an estimated position angle theta under a static coordinate system, and outputs flux estimation values psi alpha and psi beta under a static coordinate system. The novel flux observer has high anti-interference capability, and a two-phase flux linkage can be accurately estimated under the interference conditions of high frequency and part of low frequency. According to the position-less directtorque control method based on the novel flux observer, position estimation errors caused by position-less property can be resisted, the robustness of a position-less system is improved, and stable running of a permanent magnet motor position-less sensor is ensured.

The embodiment of the invention discloses a prefix identification notification method and device across an internal gateway protocol, which are used for announcing the prefix identifiers across network equipment. The method is used for cross-network equipment of a cross-internal gateway protocol. the cross-network equipment is respectively accessed to a first network adopting a first protocol anda second network adopting a second protocol; wherein the first protocol and the second protocol are different internal gateway protocols; Due to the fact that the first protocol and the second protocol are enabled at the local loopback interface across the network device, the across-network device can announce the prefix identification across the network device to the device in the first network according to the first protocol and can announce the prefix identification across the network device to the device in the second network according to the second protocol. The problem caused by cross-network equipment cross-IGP domain mutual leading prefix identification is solved, it is guaranteed that the prefix identification can use SR calculation paths in a first network and a second network related to the cross-network equipment, the problem that service recovery is slow due to the fact that a fault scene does not occur is solved, and stability and reliability are improved.

The invention discloses an implement method of IP safety service, a device and a communication device, relating to virtual private network (VPV) technology, realizing IPSEC service in the VPN including a plurality of CPUs. A technical scheme provided by the embodiment of the invention comprises that: an interface board obtains a first CPU for performing IP safety IPSEC service process on the IP message from at least two CPUs according to received IP message; the first CPU performs corresponding IPSEC service process on the IP message and transmits.

The embodiment of the invention discloses a battery module supporting high-power fast charging. The battery module comprises a battery cell, and the battery cell comprises a battery cell body, a first tab, a second tab and a third tab. And the first tab, the second tab and the third tab are electrically connected with the battery cell body respectively. The first tab and the third tab have a first polarity, and the second tab has a second polarity. And the second tab and the first tab are matched to input voltage and current to the battery cell body or output voltage and current from the battery cell body. And the second tab and the third tab are matched to input voltage and current to the battery cell body or output voltage and current from the battery cell body. The first polarity is different from the second polarity.

The invention discloses bacterial and enzymic co-fermented traditional Chinese medicine fermented feed as well as a preparation method and an application thereof. The feed comprises probiotics including enterococcus faecium, bacillus subtilis, bacillus licheniformis, saccharomyces cerevisiae, candida utilis, aspergillus oryzae and sterile water, an enzymic preparation including xylanase, mannase and cellulase, traditional Chinese medicines including radix codcnopsitis pilosulas, radix astragali, flowers of poplar, smoked plums, fructus chebulae, rhizoma atractylodis, dried ginger, dried orangepeels and radix glycyrrhizae as well as raw material substrates including soybean meal, corn meal, fish meal and high-fat whey powder, the probiotics, the enzymic preparation and multiple traditionalChinese medicines are combined for co-fermentation, the efficacy is better played, and the fermented feed is added to conventional feed and can be used for preventing bacterial yellow and white scourof suckling pigs; and besides, the fermented feed contains rich natural acid metabolized by small peptides and probiotics, can help piglets digest and prevent feed diarrhea and is favorable for improving intake of the suckling pigs, particularly for preventing weight loss of weaning piglets, a good foundation is laid for later fattening stage of the piglets, and the problems caused by existing feed for the suckling pigs are solved.

The invention discloses a method for producing oil by changing a bottom water reservoir oil well into a water dumping well and an oil production well system. In the oil production method, a well is digged on a strong bottom water reservoir; the depletion development is carried out; and when bottom water is broken through to the oil well, an oil layer and a water layer below the oil layer are drilled out to guide the bottom water to the oil layer to carry out oil displacement, so that crude oil is produced from other wells. According to the invention, the oil well which is seriously flooded is subjected to secondary well drilling, the oil layer is communicated with the water layer, the bottom water energy is sufficiently utilized, the bottom water is guided into the oil layer to carry out oil displacement and the crude oil is produced from the adjacent wells. The invention not only solves the problems caused by a water cone, but also sufficiently utilizes the natural energy of the bottom water, guides the bottom water to the oil layer to displace the crude oil and improves the recovery ratio of the crude oil.

The invention discloses an adaptive LED drive power supply, which comprises an input filter rectification unit connected with the input end of the power supply; a PFC unit connected with the output end of the input filter rectification unit; a voltage conversion unit connected with the output end of the PCF unit; An output unit connected to the output of the unit; the output of the output unit is connected to the LED lamp; it also includes a DSP main control chip unit and an isolated drive unit; the DSP main control chip unit sends a PWM pulse width modulation signal to control the isolated drive unit, and then controls The voltage conversion of the voltage conversion unit. The invention adopts the DSP main control chip unit to intelligently manage the entire digital LED drive circuit, realizes the optimal configuration of long-life power supply and LED load, improves light efficiency to the greatest extent, saves energy, is very intelligent, and completely solves the problem of LED application problems due to its own inconsistencies.

The invention discloses an automatic configuration method for base station network access in one embodiment. The automatic configuration method comprises the steps of receiving a DHCP request transmitted by a new base station to a destination port, sending a port configuration request to a background server after receiving the DHCP request so that the background server is capable of returns the network protocol address of the destination port, and performing DHCP relay enabling on the destination port, next, forwarding the DHCP request re-transmitted by the new base station to the destination port to the background server so that the background server is capable of distributing a network protocol address located within the same network segment with the network protocol address of the destination port to the new base station. Accordingly, the invention also discloses a bearing device and automatic configuration system for base station network access in the embodiment. According to the automatic configuration method for base station network access, when the new base station is connected to the port of the bearing device, the bearing device is capable of configuring the connected port automatically, and therefore, the network access rate of the new base station can be increased.

The invention discloses a method for transmitting data on a half-duplex bus and an interface device, which relate to the field of data communication, and by using the method and device disclosed by the invention, the reliability and stability of data transmission can be improved, and the stability of system functions can be guaranteed. The method for transmitting data on a half-duplex bus disclosed by the embodiment of the invention comprises the following step that: when the interface device in a sending state monitors that data of a write buffer are sent completely, the interface device is automatically switched into a receiving state from the sending state.

The invention relates to the technical field of formaldehyde air pollution treatment, in particular to a composite formaldehyde scavenger of activated carbon fiber loaded amino acid and a preparationmethod thereof. The formaldehyde scavenger is activated carbon fiber loaded amino acid, the mass ratio of the amino acid to the activated carbon fiber is 0.001-0.4:1, the amino acid comprises at leastone of glycine, alanine, arginine, lysine, proline and serine, and the activated carbon fiber carrier is activated carbon fiber honeycomb filter cotton or activated carbon fiber felt. The preparationmethod includes: firstly, dissolving amino acid in water to obtain a solution with a concentration of 0.01-20%; and putting an activated carbon fiber product into the solution, conducting soaking for0.5-24h for adsorption loading, then taking the activated carbon fiber product out of the solution, and conducting drying to obtain the formaldehyde scavenger. The formaldehyde scavenger provided bythe invention has no dust problem, provides a barrier-free network type carrier material with a large specific surface area for amino acid, can be for repeated loading, and is efficient, safe, simpleand convenient.

The invention discloses a connecting structure and connecting method for a steel pillar and a concrete beam steel bar. The connecting structure comprises a connecting cow leg, a reserved steel bar and a steel bar connector used to connect a connection part and the concrete beam steel bar, wherein the connecting cow leg is fixed on the steel pillar; a steel bar connecting face corresponding to the concrete beam steel bar is disposed on the connecting cow leg; and the reserved steel bar is fixed on the steel bar connecting face and extends to one side of the concrete beam steel bar to form an overhanging section, and the connection part is disposed on the overhanging section. According to the invention, the reserved steel bar is disposed on the connecting cow leg during manufacture of the connecting cow leg, and then the connecting cow leg is welded to the steel pillar; and then, during connection of the concrete beam steel bar, the steel bar connector is installed on the connection part of an end part of the researched steel bar, and the steel bar connector is then used for connection of the concrete beam steel bar. In this way, direct welding of a threaded sleeve on the cow leg is avoided; and the problem that the steel bar cannot be screwed in due to threaded sleeve deformation caused by welding heat can be effectively solved.

The invention discloses an implement method of IP safety service, a device and a communication device, relating to virtual private network (VPV) technology, realizing IPSEC service in the VPN including a plurality of CPUs. A technical scheme provided by the embodiment of the invention comprises that: an interface board obtains a first CPU for performing IP safety IPSEC service process on the IP message from at least two CPUs according to received IP message; the first CPU performs corresponding IPSEC service process on the IP message and transmits.

The invention relates to a PWM modulation method for improving harmonic characteristic of an output current of a three-phase photovoltaic inverter. According to the method, a sine SPWM modulation wave is injected with third harmonics with smooth waveform to obtain SVPWM modulation wave; the SVPWM modulation wave is adopted for PWM modulation; and the waveform peak value slope in the third harmonics is close to be zero. By adoption of the PWM modulation method, the problem caused by sudden change of the common-mode voltage slope can be solved, the harmonic characteristic of the output current can be improved, and a better modulation effect can be obtained.

The invention provides a terminal equipment registration method and device. In the method, the time for sending a registration acceptance message by the network is earlier than the time for sending the registration acceptance message in the registration process in the prior art; in other words, the registration acceptance message is sent as long as the first-level authentication of the terminal equipment is completed and a security context is established; however, in the prior art, the registration acceptance message is sent only after all the slices complete the second-level authentication, so that not only can the problem caused by nested authentication be solved, but also the access flexibility of the terminal equipment is greatly improved, and the setting or management of a timer during registration becomes simpler and more convenient. At the moment, the terminal equipment can decide when it is convenient to perform second-level authentication on the terminal equipment according tothe second-level authentication information fed back by the network. For example, the terminal equipment can access the slice, establish a session and send and receive data service according to the successfully authenticated slice, and makes a request to access other slices when it is idle at a later time.

The invention relates to a portable special optical cable electric take-up and pay-off table and belongs to the field of optical cable take-up and pay-off equipment. The portable special optical cable electric take-up and pay-off table is characterized by comprising a bottom plate, a first vertical plate assembly, a second vertical plate assembly, an adjusting structure assembly, an electric reciprocating type cable arranging device, a power structure assembly, a brake structure assembly and a control system. A brushless direct-current motor driver drives a brushless direct-current gear motor to control a optical cable reel to rotate so as to achieve cable winding or cable unwinding, a stepping driver controls a stepping motor to drive the electric reciprocating type cable arranging device to move circularly, electric transmission is adopted, the size is small, the weight is light, carrying is convenient, and the portable special optical cable electric take-up and pay-off table adapts to the severe natural environment in the field and can be flexibly carried on various vehicles. The laying and recycling of the optical cable are not influenced by the environment, the laying of the optical cable is rapid and flexible, laying and recycling can be carried out in a short time, and the problem that the laying and recycling of the optical cable are difficult due to the influence of the environment is solved.

The invention discloses an IGBT module electrode bending locating tool which comprises a bending equipment base connected with electrode bending equipment and a locating bottom disc arranged above the bending equipment base. Four locating pins are arranged on the upper surface of the locating bottom disc corresponding to the positions of mounting through holes in the four corners of an IGBT module bottom plate. A cross-shaped steering pin which protrudes downwards is arranged at the diagonal line intersection point of the bottom of the locating bottom disc. A cross groove with the corresponding size is formed in the bending equipment base corresponding to the steering pin. The invention discloses the IGBT module electrode bending equipment which comprises the IGBT module electrode bending locating tool and a using method of the bending equipment. A locating part is arranged so that an IGBT module can be kept stable and cannot move when being subjected to electrode bending, and the production quality of the IGBT module is guaranteed.

The invention discloses a thermal power operation ticket system management system and method based on a work recorder. The system comprises a background server, a centralized control center seat, a mobile terminal, a work recorder, and a two-dimensional code label, wherein the two-dimensional code label is scanned through the mobile terminal, and the background server is connected with the mobile terminal, the centralized control center seat and the work recorder. The system and the method can effectively solve the problems caused by paper operation tickets.

The invention relates to a synthetic method of N-ethyl-2,3-dioxygen piperazine, belonging to the technical fields of pharmaceutical and chemical industry. The synthetic method comprises the steps of preparing a mixed solution A from N-ethyl ethanediamine and absolute methanol, adding a catalyst and diethyl oxalate into absolute methanol, and uniformly stirring, so as to obtain a solution B. Compared with the prior art, the synthetic method of N-ethyl-2,3-dioxygen piperazine has the advantages that the raw materials are easily available, the operation is simple, conditions are mild, the quality is stable, and the energy consumption is low; and the synthetic method is environment-friendly and has very good industrial prospects and promotional values.

A data unit processing method and a communication system are provided. The method is performed by a first communication device, comprising: configuring a data unit by the first communication device, the data unit comprising: a specific format preamble following a first packet format; and a symbol part, comprising at least one symbol and following a Wi-Fi long range packet format. The specific format preamble can be decoded according to a first communication standard and the symbol part can be processed according to a Wi-Fi long range mode. A length of the symbol part can be determined according to the specific format preamble and the symbol part can be identified according identifying information in the symbol part. Through the present invention, a single communication device can receive and process Wi-Fi long-range data packets and Wi-Fi traditional data packets.

The embodiment of the present application discloses a method and device for announcing a prefix identifier across an interior gateway protocol, which are used to implement the advertisement of a prefix identifier across network devices. For the cross-network device that crosses the interior gateway protocol, the cross-network device respectively accesses the first network using the first protocol and the second network using the second protocol. The first protocol and the second protocol are different interior gateway protocols. The local loopback interface of the cross-network device enables the first protocol and the second protocol, so the cross-network device can notify the devices in the first network of the prefix identifier of the cross-network device according to the first protocol, and can also notify the A device in the second network advertises the prefix identification of the device across the network. Solve the problems caused by cross-network devices referencing prefix identifiers across IGP domains, and ensure that prefix identifiers can use SR path calculation in the first network and second network related to cross-network devices, and there will be no failure scenarios that cause slow service recovery issues, improved stability and reliability.

The invention provides a data unit processing method and communication system.The method is executed by the first communication device, which includes the data unit configured by the first communication device, and the data unit includes: follow the specific format of the first data package format;格Fi long -range data package format.The specific format code is decoded according to the first communication standard, and the symbol part is processed according to the Wi‑Fi long -range mode.The length of the symbol part is determined based on the specific format's front guide code, and the symbol part is recognized according to the recognition information in the symbol part.Through the present invention, the Wi‑Fi long -range data package and Wi‑Fi traditional data packet can be received and processing a single communication device.

The invention discloses an organosilicon handfeel oil primer for the surface of an aluminum product. The organosilicon handfeel oil primer is prepared by uniformly mixing silicone resin with a cross-linking agent, then adding a diluent, adding a catalyst drop by drop and carrying out uniform mixing. The organosilicon handfeel oil primer for the surface of the aluminum product has good mechanical properties, flame retardation, heat resistance, solvent resistance, good adhesion to a substrate and small pollution to environment; when the primer is sprayed on the surface of the aluminum product, organosilicon handfeel oil can be directly sprayed after the surface is dried; after curing, good adhesion between the handfeel oil and the aluminum product is realized; and the primer provided by the invention does not influence the handfeel of the organosilicon handfeel oil.

The invention discloses a composite mechanical arm capable of moving in multiple directions. The composite mechanical arm comprises a base and a multidirectional rotating arm rotationally connected with the base, a base cover is installed at the top end of the base, an annular base is fixed to the surface of the top end of the base, two end plates are symmetrically fixed to the surface of the bottom end of the base cover, two arc-shaped sliding grooves are symmetrically formed in the annular base, two dismounting and mounting openings are further formed in the surface of the top of the annular base, and the dismounting and mounting openings communicate with the arc-shaped sliding grooves. According to the composite mechanical arm capable of moving in multiple directions, through the arrangement of the annular base, the end plates, the arc-shaped sliding grooves, the disassembling and assembling openings, a clamping ring, penetrating clamping columns, a penetrating hole, a clamping hole and a springback mechanism, the base cover can be rapidly disassembled and assembled at the top end of the base, therefore, convenience is brought to follow-up operation personnel to overhaul and maintain components on the inner side of the base, the problems caused by tedious disassembly and assembly of the base cover in an original device are solved, and the later overall maintenance convenience of the mechanical arm is greatly improved.

The invention relates to a synthetic method of N-ethyl-2,3-dioxygen piperazine, belonging to the technical fields of pharmaceutical and chemical industry. The synthetic method comprises the steps of preparing a mixed solution A from N-ethyl ethanediamine and absolute methanol, adding a catalyst and diethyl oxalate into absolute methanol, and uniformly stirring, so as to obtain a solution B. Compared with the prior art, the synthetic method of N-ethyl-2,3-dioxygen piperazine has the advantages that the raw materials are easily available, the operation is simple, conditions are mild, the quality is stable, and the energy consumption is low; and the synthetic method is environment-friendly and has very good industrial prospects and promotional values.

The invention discloses an efficient wet type electrostatic-precipitation desulfurization system and a process thereof. A wet electrostatic precipitator is used for replacing an existing demister in a desulfurization tower. The wet electrostatic precipitator has more powerful capability and higher efficiency in removal of liquid drops and fine dust in flue gas than the demister, so that the wet electrostatic precipitator achieves high environmental protection discharge requirements, guarantees the desulfurization efficiency, and improves the efficiency of a dust removal system of a desulfurization tower, reduces the discharge concentration of dust at an outlet of the desulfurization tower and achieves the latest discharge standard required by the nation. By means of replacing the demister with the wet electrostatic precipitator, the gypsum rain problem is solved, and joint removal of various pollutants is achieved. Further, a water collection disc is added between a desulfurization absorption area and the wet electrostatic precipitator; as the water collection disc collects flushing water of the wet electrostatic precipitator for recycling, the flushing water of the wet electrostatic precipitator is prevented from entering a neutralization oxidation pond of the desulfurization tower directly, and water balance of the whole system is guaranteed.

The invention relates to the technical field of lithium battery assembly, and particularly discloses a positive and negative electrode arrangement device for lithium battery assembly. Comprising a machine base, a material storage box, a material conveying machine and a lithium battery jig, the material storage box is fixedly arranged above the machine base, the material conveying machine is arranged on the upper surface of the machine base, one end of the material conveying machine is connected with a discharging channel on the material storage box, the other end of the material conveying machine is connected with a vertical discharging channel, and the lower end of the discharging channel is connected with a lithium battery positive and negative electrode switching mechanism; according to the device, the rotating disc with a special structural design is adopted, so that the problem that positive and negative electrodes are easy to mistake when the lithium batteries are manually inserted into a jig for arrangement is effectively avoided, and the problem that an assembled lithium battery pack cannot be normally used due to the mistake of the positive and negative electrodes is effectively solved; the whole device is compact in structure, the rotating disc is ingenious in structural design, the problem caused by the fact that positive and negative electrodes need to be sequentially arranged in a staggered mode when an existing lithium battery is assembled is effectively solved, and the using effect is quite excellent.

The invention discloses a high-efficiency wet-type electric dust removal and desulfuration system and a process. A wet-type electric dust remover is arranged above a demister in a desulfuration tower. First of all, the demister is used for pre-removing mist drops and dust from clean smoke; the wet-type electric dust remover is used for performing fine treatment on the clean smoke; therefore, an extremely high environment-friendly discharging requirement is met; and the desulfuration efficiency is guaranteed, the efficiency of a dust removal system of the desulfuration tower is improved, and the dust discharge concentration at the outlet of the desulfuration tower is reduced, so that the latest discharge standard required in China is met. According to the wet-type electric dust remover, the problem of gypsum rain can be solved; various pollutants can be removed at the same time; furthermore, a water accumulation plate is arranged between the demister and the wet-type electric dust remover and used for collecting and recycling washing water of the wet-type electric dust remover, so that the washing water of the wet-type electric dust remover cannot directly enter into a neutralization oxidation pond of the desulfuration tower; and therefore, the water balance of the whole system is guaranteed.