42results about How to "Stable and reliable long-term operation" patented technology

The controllable arrester in metal oxide includes control part and fixed part connected in series. In normal operation of system, the control part and the fixed part together bear system voltage. When amplitude value of system over voltage exceeds prearranged threshold value, the fixed part bears system over voltage. Combining power electronic device in large power with arrester in metal oxide (MO), the invention puts forward concept and designing idea of controllable arrester for aiming at issue of over voltage protection for transmission system in super voltage, extra high voltage. Based on condition of maintaining invariable performance parameters of MO resistance piece, the invention reduces residual voltage of arrester effectively by using characteristics: quick response speed of power electronic device, steady operation, and flexible adjustment so as to raise protection level for arrester.

This invention relates to one oil and water mixture meter device, which comprises front and back tar, pre-division rotation device, clear inclination test tube, gas micro difference sensor, liquid difference sensor, pressure sensor, temperature sensor and gas and liquid exit hole, wherein, the gas side tube is connected with front and back tar and clear inclination measurement tube by 1.5 degree; setting three liquid difference voltage sensor in between and one gas difference sensor and setting two difference sensors between middle and down parts of tar; setting pressure sensor and temperature sensor in back tar to take gas and liquid threshold height and lift, and pressure impulse signals to get difference signal continual time process and each character value.

The invention discloses an air-source heat pump device integrating cool and warm air conditioning and water heating in the cold area, which belongs to the technical field of refrigeration air conditioner. The device consists of two high and low pressure compressors, a flash evaporator, a defrosting coil pipe, a flash gas superheated coil pipe, a compressor heat recovery coil pipe, a low pressure gas supply pressure pipeline and other parts which are connected through pipelines. The device is characterized in that the two high and low pressure compressors in the system have three modes of separate operation, parallel operation, and two-stage compression combined operation; and the two compressors are matched with a four-way electromagnetic directional valve, a three-way electromagnetic valve and an electromagnetic valve to form a refrigeration mode, a heating mode, a hygienic hot water mode and a refrigeration and hygienic hot water combined operation mold. The air-source heat pump device has the advantages that the device not only can refrigerate and produce hygienic hot water while refrigerating in summer; and under the microthermal climate in winter, the device can run stably to provide the heat needed by indoor heating and hygienic hot water, thereby realizing the integrated cool and warm air conditioning and water heating. The device which is used in a house in the cold area has wide popularization and application space and energy-saving significance.

The invention discloses a kind of axial-flow air-machine which uses electromagnetic bearing. There are five parts, air-entering passageway, throttle equipment axial-flow compressor, exhaust worm-shell and supporting system. The axial-flow compressor consists of the compressor rotor that consists of grade 5 rotating impeller, compressor box that consists of grade 5 rectifier vane, front supporting electromagnetic bearing module, back supporting electromagnetic bearing module, transmission shaft module, and so on. The air-entering passageway of the axial-flow air-machine is head of the air-machine bearing. The front supporting bearing module of the air-machine rotating bearing, consist sof radial restricted bearing and radial electromagnetic bearing in turn. Back rotor supporting bearing module consist sof axial electromagnetic bearing, radial electromagnetic bearing and radial-axial restricted bearing in turn. Fixing a throttle equipment adapted by electricity on the back of the air-entering passageway of axial-flow air-machine. This equipment consists of electric implement, connected mechanism, several parallel rotating valves.

The invention belongs to the technical field of thermal power generation and in particular relates to a direct-expansion solar thermal power generation system based on a cascade Rankine cycle. The direct-expansion solar thermal power generation system based on the cascade Rankine cycle comprises a parabolic trough collector array and the cascade Rankine cycle; the cascade Rankine cycle comprises a steam Rankine cycle located at the top and an organic Rankine cycle located at the bottom. Compared with the prior art, the direct-expansion solar thermal power generation system based on the cascade Rankine cycle has the following advantages at the same time: ability of well running at low environmental temperatures, higher power generation efficiency, suitability for small-scale distributed construction, extremely low technical requirements on heat collection and heat accumulation, and high stability and high reliability.

The invention discloses a whole roller insert type plate shape gauge which is characterized in that two rectangular grooves which are symmetrical in a radial direction are processed on an external surface of a main roller body (17); a cambered elastic cushion block (23) and fastening screws (22) are used for tightly connecting n groups of elastic bodies (16) and the main roller body (17) into a whole; and a spindle head (14) at an operating side is sequentially connected with a segmented spraying type collecting ring (4) and a photoelectric encoder (5), and is connected with a signal processing system (11) through a quick socket connector (9) for a code disc. An external plug-in unit (10) of the collecting ring realizes the quick connection of the spraying type collecting ring (4) and an external cable, the plate shape signals which are detected by a detecting roller (2) are transmitted to the DSP signal processing system (11) in real time, and then, the signals are transmitted to a software processing system (12), thereby providing control signals for a plate shape controlling and executing mechanism and realizing the functions of detection, identification, display, storage, printing and the like of the plate shape signals. The invention has reasonable structure and high sensitivity, is suitable for severe on-site environment, stably detects the plate shape signals in real time for a long time, and effectively avoids the damage to the surface quality of band steel caused by mutual thermal expansion and sliding among roller sheets of a traditional plate shape gauge.

The invention discloses a flexible capsule wave energy power generation device which comprises a foundation bed fixed to a water bottom. A silicone tube of a flexible structure is fixed to the foundation bed, that is, the silicone tube with high flexibility is adopted as a capsule body. One end of the silicone tube is sealed, and the other end of the silicone tube is connected with a vertical tube for conveying water. An air inlet chamber and an exhaust chamber are arranged at the top of the vertical tube. A wind driven generator is arranged above an exhaust opening. The silicone tube is full of water, and contracts or expands along with transformation of wave crests and wave troughs of external waves to form pulsation, so that the water in the silicone tube is made to rush into the vertical tube, and the water level in the vertical rube suddenly ascends and descends along with pulsation. When the water level suddenly descends, air passes through an air inlet, the air inlet chamber and an air inlet valve in sequence to enter an inner cavity of the vertical tube. When the water level suddenly ascends, air of the inner cavity of the vertical tube is compressed, and passes through an exhaust valve, the exhaust chamber and the exhaust opening to be exhausted outwards, and an impeller of the wind driven generator is blown by the air to drive the wind driven generator to generate power. The flexible capsule wave energy power generation device is simple in structure and low in manufacturing and maintenance cost, and the wave energy utilization rate is greatly improved.

The invention relates to the technical field of cloud system application, and in particular discloses a flammable and combustible hazardous chemical substance forecasting and early-warning cloud system which comprises a cloud server, wherein the cloud server is connected with a plurality of gas detection controllers; each gas detection controller is provided with a gas sensor and a temperature-humidity sensor; the cloud server is connected with exhaust equipment and GSM short message alarm and sound-light alarm equipment; the cloud server is connected with handheld terminal equipment. The flammable and combustible hazardous chemical substance forecasting and early-warning cloud system has the advantages that a digital sensor is accurate and stable in data measurement; the gas detection controllers are connected with a large number of sensors, data can be transmitted to the cloud server through GPRS, a detection area can be randomly expanded, system data can be checked at any time at any place, the system is stable and reliable to operate for a long time, the security risk of a company can be greatly reduced, and the working intensity of operators can be alleviated.

The invention relates to a peculiar smell removal and volatile organic chemicals (VOCs) degradation purification device which comprises an air inlet channel, at least one demist box internally provided with a demist folded plate, a liner cylinder type low temperature plasma box capable of discharging and an air outlet channel, wherein the demist box is communicated with the air inlet channel, the low temperature plasma box is communicated with the demist box, and the air outlet channel is communicated with the low temperature plasma box. The device has the advantages that waste gas containing stink and volatile organic chemicals (VOCs) entering from an air inlet firstly enters a pressure discharge box, then reaches the demist box, and finally reaches low temperature plasma box. Purified gas flows upwards through an outlet section and is discharged from an air out after reaching the standard.

The invention relates to water conservancy channel and river channel combined type water wagon power generation. The defects of bulkiness, complexity and low efficiency of the traditional water wagon are overcome through the technical schemes of scientific design, flexibility, simplicity, low running cost, no pollution, no ecological damage and no change of water diversion function and characteristics of a water conservancy channel and a river channel; more importantly, as for the change of the condition that the water flow energy in the traditional water conservancy channel and river channel is not effectively utilized and converted into electric energy, the structure is succinct, portable, compact, firm and reliable and is different in approach but equally satisfactory results with a honeycomb; various shapes of water conservancy channel and river channel combined type water wagons can be changed; the natural water flow energy in the water conservancy channel and river channel is skillfully and effectively recycled omnidirectionally as much as possible to efficiently drive a power generator to generate power; and the invention has the advantages of high unit power efficiency supply and high group power delivery and provides various forms of novel energy cleaning application ways and methods for serving the society and benefiting human beings.

The invention discloses an electron device flash spray circulation cooling system with a self-optimizing characteristic. The electron device flash spray circulation cooling system with the self-optimizing characteristic comprises a compressor, a condenser, a heat regenerator, a liquid storage tank, a mist spraying cavity and an air-liquid separator, wherein an outlet of the compressor is connectedwith an inlet of the condenser through a pipeline; the condenser is connected with an inlet of a first passage of the heat regenerator through a pipeline; an outlet of the first passage of the heat regenerator is connected with an inlet of the liquid storage tank through a pipeline; a lower outlet of the liquid storage tank is connected with an inlet of the mist spraying cavity through a pipeline; a lower liquid outlet of the mist spraying cavity is connected with an inlet of a second passage of the heat regenerator through a pipeline; an upper air outlet of the mist spraying cavity is connected with an inlet of the air-liquid separator through a pipeline; an outlet of the second passage of the heat regenerator is connected with the inlet of the air-liquid separator through a pipeline; and the air-liquid separator is connected with an inlet of the compressor through a pipeline. The system realizes optimal control over heat exchange intensity by regulating the parameters such as the opening degree of a bypass valve, the frequency of the compressor and the height and dip angle of mist spraying, and rapidness and stability of the system are guaranteed.

The invention creatively provides an anti-seismic and leak-proof structural temperature sensor, comprising an armored fixing bushing, a lower nut and an upper nut in sequence from the head of the temperature sensor, wherein a temperature sensing element is arranged inside the armored fixing bushing and comprises a temperature sensing probe and a probe connecting wire; the lower nut is connected with the armored fixing bushing which reciprocates in the lower nut in a piston manner; the upper nut is connected with the lower nut; the tail of the upper nut is of a hollow structure; an elastic connector is installed in the armored fixing bushing; a sealing ring for the embedding of the armored fixing bushing is arranged at the tail of the lower nut; a first sealing adhesive is sealed between the lower nut and the upper nut; and a second sealing adhesive is sealed at the tail of the upper nut. By creatively adopting a two-step anti-seismic and leak-proof method with a movable cylinder piston principle and a three-stage sealing structure (the sealing ring, the first sealing adhesive and the second sealing adhesive, the anti-seismic and leak-proof function required in an equipment temperature measuring process can be realized.

The invention relates to the field of medical teaching aids, and in particular, relates to a C-arm imitating mechanism. The C-arm imitating mechanism comprises a linear transmission mechanism, a C-shaped transmission shaft, a rotating mechanism, a camera fixing bracket, a camera object distance adjusting mechanism, a camera and a control box; one end of the rotating mechanism is connected with thelinear transmission mechanism through a bottom plate and can do linear motion through the connected linear transmission mechanism, and the other end of the rotating mechanism is further connected with the C-shaped transmission shaft and drives the C-shaped transmission shaft to rotate. The camera can be driven by a series of electromechanical devices to simulate the operation effect of DSA radiography equipment, C-arm operation training and radiography practice can be conducted by means of the device, and the device is low in cost and stable and reliable in long-term operation effect.

The invention relates to a normal afterheat discharging pump applicable to an advanced pressurized water reactor nuclear power station adopting third-generation AP1000. Major components of the normal afterheat discharging pump for a third-generation AP1000 advanced pressurized water reactor nuclear power station comprise a press-out chamber cover plate, an impeller, a pump body, a press-out chamber, a pump cover, a throat bushing, a sealing component, a bearing forced cooling structure and a shaft coupler, wherein the throat bushing is arranged on a pump shaft, and the upper part of a bearing component is provided with the bearing forced cooling structure. The normal afterheat discharging pump provided by the invention has the characteristics that the structure is simple, safe and reliable, the efficiency is high, the integral anti-seismic performance is good, and the maintenance is convenient and fast; the requirements of high-temperature, high-voltage and severe radiation environment of power plants and strong seismic oscillation can be met.

The invention relates to a stepless speed regulating hydraulic driving system of a spiral conveyer for a super-large diameter shield machine. The stepless speed regulating hydraulic driving system comprises an oil case, a hydraulic pump set, a speed regulating hydraulic circuit, a reducer, a hydraulic motor set and a control unit. An oil separating and collecting valve module, a rinsing control valve module, a control pump and a sensor module are arranged in the speed regulating hydraulic circuit. The hydraulic pump set comprises a first hydraulic pump and a second hydraulic pump. The first hydraulic pump and the second hydraulic pump are both provided with displacement regulating mechanisms. The hydraulic motor set comprises a first hydraulic motor and a second hydraulic motor which operate simultaneously. The first hydraulic motor and the second hydraulic motor are both provided with output variable regulating mechanisms. The displacement regulating mechanisms and the output variable regulating mechanisms are in communicating connection with the control unit. The hydraulic driving system can meet the requirements for large torque and high rotation speed, has the functions of variable-speed regulating, overload protection and double-way rotating and is safe and reliable, and the stability of the operation performance of the spiral conveyer is guaranteed effectively.

The invention relates to the field of agriculture machinery, in particular to closed type automation constant-temperature drying equipment. The closed type constant-temperature drying equipment comprises a drying chamber and a control member chamber. A partition layer is arranged on the back portion of the drying chamber and internally provided with an inner circulation fan, an evaporator, a heater, a temperature and humidity sensor and a standby temperature sensor; the partition layer on the back portion is internally of a four-layer sealing structure; the drying chamber is internally provided with partition plates, inner circulation air channels are formed in the lower side in the drying chamber, and an air inlet channel and an air return channel which are used for dehumidifying are formed in the right side face of the drying chamber; the control member chamber is arranged on the right portion of the drying chamber and divided into three layers; a touch screen, a controller and a signboard are placed on the upper layer of the control member chamber; a dehumidifying machine is placed on the middle layer of the control member chamber; and a refrigerating unit is arranged on the lower layer of the control member chamber and comprises a refrigerating compressor, a refrigerating condenser and a condenser radiating fan. The closed type constant-temperature drying equipment has theadvantages of reasonable structure and good constant-temperature drying effect.

The invention discloses a plate type low-temperature economizer. The economizer comprises a casing, a convergence box and a plate type heat exchange module; a smoke inlet channel and a smoke discharge channel are arranged at the upper end and the lower end of the casing; the smoke inlet channel comprises an inlet flange and a conical smoke inlet guiding barrel; the smoke discharge channel comprises an outlet flange and a conical smoke discharge guiding barrel; and the plate type heat exchange module comprises multiple heat exchange plates, flue supporting bulges and cold source channel supporting bulges are arranged on two sides of the heat exchange plates, cold source medium baffle runners are formed among the cold source channel supporting bulges of the adjacent heat exchange plates, and comprise multiple circumferential channels provided with independent medium inlets and outlets and pass partition plates arranged in the circumferential channels to enable cold source media to flow in a baffled manner, and discharged smoke once-through channels are formed among the flue supporting bulges of the adjacent heat exchange plates. Flow fields in the economizer are uniformly distributed, the medium contact area is large, the heat exchange efficiency is high, the smoke discharge resistance is small, meanwhile, spaces between the heat exchange plates are easy to clean and maintain, and the capability of the heat exchange plates for bearing pressure differences on the two sides is high.

The related flux gauging device for oil-water-gas three phase flow comprises: divided by the flange and pipeline, a separation tank with top connected with a gas-liquid inlet pipe and both top and bottom connected with the control tank top and bottom through a gas-release and liquid-release pipe, a control tank with a floating-ball regulating valve inside and a gas / liquid outlet pipe on top / bottom, a liquid flowmeter, a constituent device, a gas meter on a gas release pipe, and a gas-liquid buffer tank, wherein the gas-release pipe and liquid-release pipe conflux at the confluxing pipe. This invention has measuring precision up to +-0.5~2%, fit to run for long term reliably, and has small size and weight for wide application.

The invention relates to a neodymium-doped yttrium aluminum garnet dual-wavelength laser output medical apparatus comprising a reducer motor, a rotating arm, a frequency-doubling crystal body, an optical filtering mechanism, an absorption mechanism and a bottom plate. The frequency-doubling crystal mechanism comprises a frequency-doubling crystal arranged on the rotating arm. The optical filtering mechanism comprises a 45-degree glass filter. The frequency-doubling crystal and the 45-degree glass filter are located on a coaxial horizontal optical path. The absorption mechanism comprises a 45-degree reflector, an absorption cell and a reflector which are coaxial. The 45-degree reflector and the reflector are disposed at both ends of the absorption cell respectively. An original 1064 nanometer laser a forms a mixed laser b with dual wavelengths of 1064 nm and 532 nm by means of the frequency-doubling crystal. A pure 532nm frequency-doubled laser c is obtained to be output after the mixed laser b passes through the 45-degree reflector. The frequency-doubled remaining 1064nm laser d enters the absorption cell via the 45-degree reflector and is gradually and completely attenuated and absorbed and not any laser is reflected back to the original radiation optical path. The neodymium-doped yttrium aluminum garnet dual-wavelength laser output medical apparatus is low in cost and quick and easy in optical path adjustment, and does not generate any optical path deviation after long-term use.

The invention discloses a household air source heat pump heating system in cold area, and relates to a heat pump system which uses the air source for running steadily under the low-temperature environment and supplying the interior with the needed heat and healthy hot water. The system comprises parts such as a low pressure frequency compressor, a high pressure compressor, an outdoor heat exchanger, a flash evaporator, a reservoir, a defrosting coil, a flash gas overheating coil, a compressor heat radiating recovery coil, a low pressure air supply pressurization line, a sub-thermal converter, a multi-head efficient spiral heat exchanger, a thermal expansion valve, and the like, which are connected by a pipeline. The invention is characterized in that the system comprises a flash evaporator component, a flash gas overheating coil, a compressor heat radiating recovery coil, and a low pressure air supply pressurization line. When in heat operation under low-temperature working condition, based on the two-stage compression cycle which is incompletely cooled between two stages of throttles, the invention uses the flash gas overheating coil, the compressor heat radiating recovery coil, and the low pressure air supply pressurization line for recovering the heat radiating capacity of a compressor, realizes the overheating of the flash gaseous working substance, enhances the gas transmission capacity of the compressor, and further improves the heat and the energy efficiency ratio of a heat pump system. Meanwhile, the defrosting coil is added to the bottom part of the heat exchanger device, so the frosting problem of the outdoor heat exchanger of the heat pump is solved. The invention can realize the mutual switch among a single heating operating mode in winter, a heating and healthy hot water united operating mode in winter, and a healthy hot water single operating mode during a non-heating period.

The invention discloses an anti-explosion magnetic liquid filter. The anti-explosion magnetic liquid filter is provided with a mechanical seal washing pipeline, and is characterized by being provided with a filter shell, a filter cover, a magnetic core assembly and a filter screen assembly, wherein the magnetic core assembly comprises a bolt, a spring and a magnetic core; the filter screen assembly comprises a filter screen, a seal loop and a seal ring; a filter cavity is formed in the centre of the filter shell; the end part of the filter shell is in seal connection through the filter cover; a liquid inlet hole and a thread blind hole are sequentially formed in the centre of one end surface of the filter cover; a liquid inlet port is formed in one side of the filter cover, and a liquid outlet port is formed in the other side of the filter cover; a liquid outlet hole is formed in one side of the liquid inlet hole; the liquid inlet end of the liquid inlet hole is communicated with the liquid inlet port, and the liquid outlet end of the liquid inlet hole is communicated with the filter cavity; the liquid inlet end of the liquid outlet hole is communicated with the filter cavity, and the liquid outlet end of the liquid outlet hole is communicated with the liquid outlet port; the liquid outlet port of the filter cover is connected with the mechanical seal washing pipeline; a magnetic core is arranged in the filter cavity and strung in the bolt, the spring of the bolt is fixedly connected with the filter cover, the filter screen is sleeved outside the magnetic core, and the filter screen is in seal connection with the filter cover. The anti-explosion magnetic liquid filter has the advantages of being novel in structure, safe in running, and the like.

This invention is a joint system which is used for air exhaust of the isolating house. It is composed of three parts. The first part is conventional basic element. The second part is the high temperature burning pypoelectricity part. The third part is joint part of the hydrogen and oxygen.The second part includes gas turbine generator which has the combustion turbine and the dynamotor. The admission port is jointed with the air channel. The dynamotor of the gas turbine generator is connected with the distribution box in the third part. There are many lines in the third parts, which are connected with the detection control system, the electrolyzing water system, the machines used for adding oxygen and the electric connector used for adding hydrogen. It can remove the organic matter residual toxicity. In the same time, it can generate electricity and produce oxygen and hydrogen.

The invention relates to a stepless speed-regulating hydraulic drive system for a screw conveyor for super-large-diameter shield tunneling, which includes a fuel tank, a hydraulic pump group, a speed-regulating hydraulic circuit, a reducer, a hydraulic motor group, and a control unit. There are oil separation and oil collection valve modules, flushing control valve modules, control pumps, and sensor modules. The hydraulic pump group includes hydraulic pump 1 and hydraulic pump 2. Both hydraulic pump 1 and hydraulic pump 2 are equipped with displacement adjustment mechanisms , the hydraulic motor group includes hydraulic motor 1 and hydraulic motor 2 that operate synchronously, and hydraulic motor 1 and hydraulic motor 2 are both provided with an output variable adjustment mechanism, and the displacement adjustment mechanism and output variable adjustment mechanism are all communicated with the control unit . The present invention can satisfy the hydraulic drive system with high torque and high rotational speed, realize the functions of variable speed adjustment, overload protection, and bidirectional rotation, is safe and reliable, and effectively guarantees the stability of the operation performance of the screw conveyor.

The invention relates to an advanced treatment and recycling method for filature production wastewater. The method is characterized by comprising the following steps: (A) removing the floats, grease and suspended solids from the filature production wastewater by a first-level pretreatment unit consisting of a grid net and an oil separation sedimentation tank; (B) sequentially feeding the effluent of the oil separation sedimentation tank into a second-level biological treatment unit consisting of an anoxic tank, a plug-flow aeration tank and a secondary sedimentation tank to remove most of the organic pollutants; and (C) further treating the effluent after the second-level biological treatment by a third-level advanced treatment unit, wherein through advanced purifying treatment, the effluent quality meets the water quality requirement in filature production, the effluent is recycled to filature production, and thus the recycling of the filature production wastewater is realized. By adopting the advanced treatment and recycling method for filature production wastewater provided by the invention, the effluent quality is good; and the method has good adaptability and is stable and reliable in long-term running and simple to operate and manage so as to save the water resource, reduce pollutant discharge, protect environment and promote sustainable development of the filature industry.

The invention relates to an advanced treatment and recycling method for filature production wastewater. The method is characterized by comprising the following steps: (A) removing the floats, grease and suspended solids from the filature production wastewater by a first-level pretreatment unit consisting of a grid net and an oil separation sedimentation tank; (B) sequentially feeding the effluent of the oil separation sedimentation tank into a second-level biological treatment unit consisting of an anoxic tank, a plug-flow aeration tank and a secondary sedimentation tank to remove most of the organic pollutants; and (C) further treating the effluent after the second-level biological treatment by a third-level advanced treatment unit, wherein through advanced purifying treatment, the effluent quality meets the water quality requirement in filature production, the effluent is recycled to filature production, and thus the recycling of the filature production wastewater is realized. By adopting the advanced treatment and recycling method for filature production wastewater provided by the invention, the effluent quality is good; and the method has good adaptability and is stable and reliable in long-term running and simple to operate and manage so as to save the water resource, reduce pollutant discharge, protect environment and promote sustainable development of the filature industry.

The invention relates to a neodymium-doped yttrium aluminum garnet dual-wavelength laser output medical apparatus comprising a reducer motor, a rotating arm, a frequency-doubling crystal body, an optical filtering mechanism, an absorption mechanism and a bottom plate. The frequency-doubling crystal mechanism comprises a frequency-doubling crystal arranged on the rotating arm. The optical filtering mechanism comprises a 45-degree glass filter. The frequency-doubling crystal and the 45-degree glass filter are located on a coaxial horizontal optical path. The absorption mechanism comprises a 45-degree reflector, an absorption cell and a reflector which are coaxial. The 45-degree reflector and the reflector are disposed at both ends of the absorption cell respectively. An original 1064 nanometer laser a forms a mixed laser b with dual wavelengths of 1064 nm and 532 nm by means of the frequency-doubling crystal. A pure 532nm frequency-doubled laser c is obtained to be output after the mixed laser b passes through the 45-degree reflector. The frequency-doubled remaining 1064nm laser d enters the absorption cell via the 45-degree reflector and is gradually and completely attenuated and absorbed and not any laser is reflected back to the original radiation optical path. The neodymium-doped yttrium aluminum garnet dual-wavelength laser output medical apparatus is low in cost and quick and easy in optical path adjustment, and does not generate any optical path deviation after long-term use.

This invention relates to one oil and water mixture meter device, which comprises front and back tar, pre-division rotation device, clear inclination test tube, gas micro difference sensor, liquid difference sensor, pressure sensor, temperature sensor and gas and liquid exit hole, wherein, the gas side tube is connected with front and back tar and clear inclination measurement tube by 1.5 degree; setting three liquid difference voltage sensor in between and one gas difference sensor and setting two difference sensors between middle and down parts of tar; setting pressure sensor and temperature sensor in back tar to take gas and liquid threshold height and lift, and pressure impulse signals to get difference signal continual time process and each character value.

The invention discloses a self-diagnosis and self-recovery method of an intelligent transformer substation system, which comprises the following steps that: (1) a monitoring server host regularly acquires a memory size occupied by core processes of the system, and self-recovery is started when the memory size exceeds a preset threshold, (2) abnormity detection is carried out by closed-loop self-checking between the monitoring server host and a monitoring client, and the self-recovery is started when the monitored abnormity frequency exceeds a preset threshold accumulatively; and (3) after the self-recovery is started, master and slave switching operation of double servers is carried out, and the host restarts generated abnormal service processes. The self-diagnosis and self-recovery method of the intelligent transformer substation system employs the characteristics of basic frame refreshing, data refreshing, alarm uploading and the like in an operating period of the system; a closed-loop timing self-checking function is formed between the monitoring server host and the monitoring client; and when a self-checking result corresponds with an abnormal condition, a self-recovery policy of the system is started by using a hot standby characteristic of the system so as to ensure long-term reliable operation of the system.

The invention discloses a whole roller insert type plate shape gauge which is characterized in that two rectangular grooves which are symmetrical in a radial direction are processed on an external surface of a main roller body (17); a cambered elastic cushion block (23) and fastening screws (22) are used for tightly connecting n groups of elastic bodies (16) and the main roller body (17) into a whole; and a spindle head (14) at an operating side is sequentially connected with a segmented spraying type collecting ring (4) and a photoelectric encoder (5), and is connected with a signal processing system (11) through a quick socket connector (9) for a code disc. An external plug-in unit (10) of the collecting ring realizes the quick connection of the spraying type collecting ring (4) and an external cable, the plate shape signals which are detected by a detecting roller (2) are transmitted to the DSP signal processing system (11) in real time, and then, the signals are transmitted to a software processing system (12), thereby providing control signals for a plate shape controlling and executing mechanism and realizing the functions of detection, identification, display, storage, printing and the like of the plate shape signals. The invention has reasonable structure and high sensitivity, is suitable for severe on-site environment, stably detects the plate shape signals in real time for a long time, and effectively avoids the damage to the surface quality of band steel caused by mutual thermal expansion and sliding among roller sheets of a traditional plate shape gauge.