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

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 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 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 formaldehyde air pollution control, in particular to a composite formaldehyde scavenger loaded with amino acids on activated carbon fibers and a preparation method thereof. The formaldehyde scavenger is activated carbon fibers loaded with amino acids, the mass ratio of amino acids to activated carbon fibers is 0.001-0.4:1, and the amino acids include at least one of glycine, alanine, arginine, lysine, proline and serine One, the activated carbon fiber carrier is activated carbon fiber honeycomb filter cotton or activated carbon fiber felt. Firstly, the amino acid is dissolved in water to obtain a solution with a concentration of 0.01-20%. Then, the activated carbon fiber product is soaked in the solution for 0.5-24 hours, adsorbed and loaded, taken out from the solution, and dried to obtain a formaldehyde scavenger. The formaldehyde scavenger of the present invention has no dust problem, provides a non-blocking network type carrier material with a large specific surface area for amino acids, and can be repeatedly loaded. The formaldehyde scavenger is efficient, safe, simple and convenient.

The invention discloses a stripping assembly for piercing and stripping pins of a capacitor core package and a working method thereof. The main shaft is connected with the cylinder, the needle is installed on the main shaft, and locked with the locking screw; the stripping sleeve is matched with the main shaft, and waist-shaped holes are designed on both sides of the stripping sleeve for the locking screw to move up and down; the spring is installed on the On the main body shaft, the lower end surface of the spring is in contact with the stripping sleeve, the upper end surface is in contact with the lower surface of the boss of the main body shaft, and the spring is in a compressed state. The invention can replace the puncturing needle and the stripping sleeve according to different puncturing requirements, has a simple structure, and effectively solves the problem that the pins of the core package are lifted by the puncturing needle after puncturing.