9results about How to "Improve safe operation" patented technology

The utility model provides a kind of coal pulverizer coal dust initial temperature promotion device, it is related to the technical field of coal-fired unit, including the flue between denitration device and air preheater and the flue gas inlet of coal pulverizer are communicated to the first pipeline leading out between them, high-temperature dust collector and temperature rising fan are sequentially provided on the first pipeline along the flow direction of flue gas;Flue between induced draft fan and chimney and the flue of first pipeline and second pipeline between high-temperature dust collector and temperature rising fan are converged;Valve group is arranged on the first pipeline and second pipeline;Valve group electric signal is connected with temperature control unit, for calculating the drying output demand temperature of coal pulverizer, solve the existing preprocessing easy to return moisture and technical problem of backflow abrasion equipment, reach the technical effect that internal flue gas of system is used to provide heat for coal pulverizer, while saving energy, reducing coal pulverizer explosiveness, improve low load condition boiler combustion state, improve boiler efficiency.

The utility model relates to a kind of midway up and down bridge device of pressure pipeline laid by vehicle-mounted bridge, including shaft mechanism and temperature compensator;The shaft mechanism is arranged at the turning of pressure pipeline up and down bridge;Pipeline is changed by the up and down bridge shaft mechanism from laying along bridge to trench, public pipe gallery or direct-buried laying, realize the relative independence of pipeline line and bridge line;Temperature compensator is arranged between the shaft mechanism and the upper structure of bridge.The utility model sets up shaft mechanism at up and down bridge according to the requirement of pipeline, realizes the relative flexibility of pipeline laying;And the turning of pressure pipeline will not generate greater horizontal force to bridge structure, will not generate greater influence to bridge structure, can guarantee the safety of pipeline and bridge.

The application discloses a kind of hot blast stove heat exchanger on-line leak detection method and system.The leak detection method includes: obtaining the CO concentration in flue gas composition;According to CO concentration and detection parameter, determine whether gas heat exchanger leaks;Wherein, detection parameter includes the pressure resistance loss deviation value between the inlet end and outlet end of gas heat exchanger, the temperature deviation value of heat exchange gas, the air-fuel ratio of furnace and the vault temperature deviation value.Realize the comprehensive and effective on-line leak detection of hot blast stove heat exchanger, can find out in time when gas leakage occurs in heat exchanger, improve the reliability of detection heat exchanger leak detection result, reduce the safety risk caused by gas leakage in heat exchanger, promote the safe operation of hot blast stove system, with good popularization significance.

This invention belongs to the field of refractory materials technology, and relates to a high-strength nano-polycrystalline spraying material for non-ferrous metal smelting furnaces and its preparation method. The high-strength nano-polycrystalline spraying material comprises the following raw materials in parts by weight: 30-45 parts high-purity fused magnesia, 15-20 parts fused magnesia-chromium sand, 5-7 parts fused chromium corundum, 10-20 parts polycrystalline nano-magnesium oxide, 3-5 parts CA-80 type calcium aluminate cement, 3-5 parts silica sol, 8-15 parts chromium oxide micropowder, and 2-3 parts sodium carboxymethyl cellulose. After spraying onto copper smelting anode furnaces (Kaldor furnaces), the corrosion resistance, thermal shock stability, and service life are improved.

The utility model belongs to the field of chemical technology, especially relates to a flexible coking device reaction system. Including coking line, steam line and dry gas line, steam line is linked with coking line, steam line is used for with steam is passed into to coking line. Dry gas line is linked with steam line, and dry gas line is used for with dry gas is passed into to steam line. Steam of hot coke line is replaced with dry gas, reduces the consumption of steam, reduces the subsequent water treatment load, increases the dry gas amount of absorption stable system, reduces the anti -fly dynamic of air compressor, reduces the air compressor degradation supplement flow, thereby reduces the air compressor load, reduces the use amount of medium pressure steam, thereby reduces the device energy consumption. Among them, the dry gas line can reduce 2t / h steam consumption after increasing, reduces the steam consumption. The dry gas line reduces the air compressor anti -fly dynamic about 2000Nm 3 / h after increasing, correspondingly reduces the steam consumption, thereby reduces the device energy consumption as a whole.

The utility model discloses a heat dissipation insulation sheet used for a notebook computer, which comprises a notebook computer casing, a heat dissipation sheet is installed on the lower end face of the notebook computer casing, the heat dissipation sheet is fixed on the notebook computer casing in an attached mode, heat dissipation supporting feet are installed on four corners of the lower end face of the heat dissipation sheet, and the heat dissipation supporting feet are fixed with the heat dissipation sheet in an inserted mode. A plurality of inner bent pipe sets are further installed above the cooling fins, and one ends of the inner bent pipe sets are fixedly connected with the cooling fins. Through the synergistic effect of the cooling fins, the cooling supporting feet, the inner bent pipe set and the inner heat conduction assembly, the cooling area is greatly increased, the heat conduction and dissipation efficiency is improved, the temperature of a notebook computer can be rapidly and effectively reduced, and it is guaranteed that the performance of the notebook computer is stable. And the heat-conducting insulating sheet is arranged, so that an insulating effect is achieved while heat is conducted, electrical potential safety hazards are avoided, and safe operation of the notebook computer is guaranteed.

A surge arrester with anti-detachment capability includes a main body and a cable. The main body includes a housing and a power connection structure. A power connection channel is provided within the housing, and the power connection structure is placed within the power connection channel. The housing also has an input port and an output port. One end of the power connection structure is located in the input port, and the other end is located in the output port. The characteristic feature is that the housing also has an anti-detachment device, which is located on the side of the housing away from the output port, and is used to secure the connection of the surge arrester. In this design, by setting the anti-detachment device, the surge arrester can be effectively prevented from detaching during installation and use, ensuring its normal operation and improving the safe operation of power equipment. Furthermore, the self-locking component allows the anti-detachment device to automatically lock after completing the anti-detachment process, avoiding detachment caused by external factors and further improving the safety and stability of the surge arrester.

This application discloses a zero-output low-pressure inner cylinder, a high-efficiency flow-through high-pressure cylinder, and a steam turbine. The zero-output low-pressure inner cylinder includes a shell, a low-pressure cylinder inlet pipe, an outer guide ring, an inner guide ring, a low-pressure baffle, a final-stage baffle, a low-pressure extraction port, a low-pressure cylinder manhole, and a low-pressure cylinder center plate. The outer side of the shell is connected to the low-pressure cylinder inlet pipe. One end of the shell is connected to the outer guide ring, and the other end is connected to the inner guide ring. A low-pressure baffle is connected to the inner side of the shell near the outer guide ring, and the baffle is inclined. The end of the low-pressure baffle away from the shell is connected to the final-stage baffle. A low-pressure extraction port is provided on the side of the shell away from the low-pressure cylinder inlet pipe. A low-pressure cylinder manhole is also connected to the shell. This design achieves significant improvements in unit operating stability, increased thermal efficiency, and substantial reductions in coal consumption, resulting in economic and environmental benefits. It also enhances the unit's safe operation under low-load or zero-output conditions.

The utility model discloses a durable highly-integrated photovoltaic container inverter room, which comprises a photovoltaic inverter room, an inverter cabinet and a direct current cabinet, a top plate is arranged at the top of an upper room body of the photovoltaic inverter room, a box bottom is arranged at the bottom of the room body, side doors are arranged at two ends of the room body, inverter room doors are arranged at the centers of the front surface and the back surface of the room body, and the inverter room doors are connected with the inverter cabinet. The photovoltaic inverter room is internally provided with an inverter cabinet and a direct current cabinet, the inverter cabinet is communicated with the direct current cabinet, a monitoring unit is arranged between the inverter cabinet and the direct current cabinet in a matched mode, the top of the security monitor, the top of the inverter cabinet and the top of the direct current cabinet are each provided with an air channel, and the air channels are arranged in the top of the inner side of the photovoltaic inverter room. According to the utility model, the inverter and the direct current cabinet are integrated, the indirect sectional type direct exhaust air duct is adopted, so that the whole equipment can run reliably for a long time, the S-shaped blind window and the dustproof cotton plate can further play a dustproof role, and the middle line symmetric design facilitates the later maintenance of the equipment.