31results about How to "Avoid the effects of stress" patented technology

The invention discloses a self-drilling type spiral anchor rod and a construction process using the self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing, which are suitable for support engineering of anchor-pulling slopes in weak soil regions. A paste outlet is arranged on a rod body of the spiral anchor rod, the front end of the rod body of the anchor rod is enclosed, a spiral vane is welded at the front end of the rod body of the anchor rod, and a stirring slice is welded behind the spiral vane on the rod body of the anchor rod. The construction process using the self-drilling type spiral anchor rod for grouting along with drilling, stirring and curing comprises the following steps of: injecting cement paste while drilling by rod body of the anchor rod, so that a paste body of the cement paste is ejected out of the paste outlet of the rod body of the anchor rod, mixing the paste body and a soil body cut by using the spiral vane on the front end, uniformly stirring the soil body and the cement paste by using the stirring slice arranged behind the spiral vane, forming an irregular anchor body after curing so that the anchoring force of the anchor rod is increased. Because the drilling and the grouting are integrated, the pressure influence of subsequent grouting on the side wall of a foundation pit is avoided; and meanwhile, the grouting pressure can be effectively controlled so that the grouting quality can be ensured.

The invention relates to an isolated working heart dual-channel perfusion experiment method and device for large animals, in particular to isolated working heart dual-channel perfusion experiment method and device for large experimental animals such as pigs or large dogs. The method and device has the advantages that consumption of oxygen-rich anticoagulant blood is saved, heart performance is tested more comprehensively and required equipment is simple. The method is characterized by including: stopping an animal heart, subjecting bilateral coronary, pulmonary artery, pulmonary vein and artery to catheterization, and perfusing a coronary system with the oxygen-rich anticoagulant blood by means of bilateral coronary catheterization; recovering blood pumped out of the pulmonary artery from a right ventricle, testing with an experimental device, oxygenating, and perfusing the coronary with the oxygenated oxygen-rich anticoagulant blood to form an anticoagulant blood closed loop; perfusing with constant temperature physiological solution by a catheter in the pulmonary vein, and recovering the physiological solution through a catheter in the artery to form a physiological solution closed loop; reviving the heart by electrical stimulation.

A light-sensitive driving circuit, a light-sensitive driving method and a display are provided. The light-sensitive driving circuit comprises a pulse width modulation circuit, a judge unit and a first analog-to-digital converter. The pulse width modulation circuit provides a pulse width modulation voltage to drive a light-sensitive apparatus, so that the light-sensitive apparatus outputs an induced signal according to an external light. The judge unit judges whether a check and burn procedure needs to be operated or not according to an external command. If the check and burn procedure does not need to be operated, the first analog-to-digital converter outputs a digital signal according to the induced signal.

A high torque threaded joint comprising a box member having threads and a pin member having threads (10) configured and positioned to mate with the threads of the box member. There is a flank-to-flank contact thread profile using trapezoidal threads with both a positive and very low load flank angle, (β1 or a); and a positive and very low stabbing flank (14) angle, (β2, or b), wherein the threads are coated with a solid, dopefree surface treatment.

The invention provides a water purifier capable of preventing water seepage and a control method thereof. The water purifier capable of preventing water seepage is provided with a filtration system, a water inlet valve, a drainpipe, a waste water valve, a water outlet pipe and a water outlet valve, wherein a water inlet of the filtration system is hermetically communicated with a water inlet pipe; the water inlet valve is arranged on a water inlet pipeline of the filtration system; the water outlet pipe is hermetically communicated with a waste water outlet of the filtration system; the waste water valve is arrange on the drainpipe; the water outlet pipe is hermetically communicated with a purified water outlet of the filtration system; the water outlet valve is arranged on the water outlet pipe; and the water outlet valve is a normally-open valve, is totally opened when power is not supplied and only has one small hole to allow water to pass through when power is supplied. The control method comprises the following steps: during preparation of water, controlling opening of the water inlet valve and closing of the waste water valve when power is supplied; during flushing, controlling opening of the water inlet valve when power is supplied and opening of the waste water valve when power is not supplied; and when the water purifier is in a standby state after completion of water production, controlling closing of the water inlet valve when power is not supplied and opening of the waste water valve when power is supplied. The water purifier can prevent water leakage accidents.

The invention relates to the technical field of solar photovoltaics, and further discloses a solar photovoltaic auxiliary device capable of automatically removing ice and snow according to gravity change. The device comprises a base, a sliding groove and a water inlet groove are formed in the middle of a supporting frame, and an annular groove, an inclined air hole, an air blowing device and an inclined water spraying hole are formed in a cleaning device. The lower end of the sliding rod is connected with a metal ball corresponding to a variable resistor, the two sides at the lower end of a bottom plate are connected with a first sliding rod and a second sliding rod, a through hole is formed at the left side of the first sliding rod, and an electric heating block is connected into the cleaning device. The metal ball on the sliding rod is driven by the sliding rod to slide on the variable resistor, the electric heating block in the annular groove on the cleaning device is connected witha circuit of the air blowing device, the inclined air hole is opened, and the air blowing device blows the heat generated by the electric heating block to the photovoltaic panel through the inclinedair hole, so that the problems that an existing solar panel cleaning device is low in ice and snow removing efficiency and is easy to damage are solved.

This invention provides a semiconductor device that can ensure that stress on the nitride film is not increased or is reduced, and that can prevent an increase in interconnection capacity. The semiconductor device comprises a underlayer, a base oxide film that is formed on this underlayer, a nitride film pattern with a hole pattern that is provided on this base oxide film, holes that penetrate the base oxide film, an upper oxide film provided on the base oxide film to cover the nitride film pattern, wiring grooves provided through the upper oxide film in which part of the nitride film pattern including the hole pattern is exposed, and wiring metal that fills the holes and wiring grooves. The nitride film pattern is formed with such a shape and size that surrounds the outside of the wiring grooves and is separate from neighbouring nitride film patterns.

The present invention relates to a thermal vacuum deposition apparatus and method in which a strip-shaped substrate is continuously conveyed in a vaporization channel supplied with a gaseous coating material. The object of the present invention is to allow rapid protection of the substrate from damage during the coating process in known deposition methods and devices. This object is achieved in an inventive method, characterized in that when the minimum conveying speed is not reached or when the substrate is stopped so that the substrate is located in the interior space, by inserting at least one position-adjustable hollow element into the vaporization channel The vaporization channel is sealed in the external space of the vaporization channel and the internal space of the vaporization channel.

A high torque threaded joint comprising a box member having threads and a pin member having threads (10) configured and positioned to mate with the threads of the box member. There- is a flank-to-flank contact thread profile using trapezoidal threads with both a positive and very low load flank angle, (β1 or a); and a positive and very low stabbin flank (14) angle, (β2, or b), wherein the threads are coated with a solid, dopefree surface treatment.

The invention discloses a water inlet detection method of a food processor and the food processor. The food processor comprises a water tank, a cup body, a water level detection module used for detecting whether water exists in the water tank or not and a water pump with a preset water pumping speed. The water tank and the cup body are directly communicated through a pipeline, the water level detection module is arranged on the pipeline, and the water inlet detection method of the food processor comprises the steps that a main control circuit obtains a detection result of the water level detection module, and the detection result is used for indicating whether water exists in the water tank or not; the main control circuit controls the water pump to pump water at a preset water pumping speed according to whether water exists in the water tank; wherein the corresponding preset water pumping speeds are different when water exists in the water tank and no water exists in the water tank. According to the water inlet detection method of the food processor and the food processor, residual water and residual air pressure in the pipeline between the water tank and the water pump can be emptied, so that the influence of the residual water and the steam pressure in the pipeline is avoided, and the reliability of water existence detection or water level detection is improved.

An embodiment of the invention provides injection valve fault diagnosis method, system and equipment and a storage medium. The method comprises the steps that when a vehicle is in a first state, an actual value of an excess air coefficient of the vehicle and a first closed-loop correction factor are obtained, whether the actual value is within a first preset interval and whether the first closed-loop correction factor is within a preset factor normal interval are judged, and if the actual value is within the first preset interval and the first closed-loop correction factor is within the preset factor normal interval, after the amplified factor normal interval is obtained, a first target injection valve is closed, a second closed-loop correction factor of the excess air coefficient after the actual value is recovered to the first preset interval after the first target injection valve is closed is obtained, a first difference value between the second closed-loop correction factor corresponding to the first target injection valve and the first closed-loop correction factor is obtained, and the fault of the first target injection valve is determined through the first closed-loop correction factor and the first difference value. Accurate diagnosis of the fault of the injection valve of an engine can be achieved under the condition that the engine is not disassembled, and the general applicability is high.

The invention discloses an experimental device and method for accurately calculating hydrate content change in small volume sediments. A small-volume reactor is connected with a standard gas chamber,and a stop valve is arranged between the two; two ends of a differential pressure transducer are respectively connected with the small-volume reactor and the standard gas chamber, and a gas pressure difference between the small-volume reactor and the standard gas chamber is measured by the differential pressure transducer; the small-volume reactor, the standard gas chamber and the differential pressure transducer are arranged in a temperature control module, and the temperatures of the three are controlled to be the same and constant by virtue of a temperature control module. The gas pressurevariation is measured by adopting the differential pressure transducer, and the differential pressure transducer is capable of easily measuring tiny gas pressure change caused by hydrate synthesis ordecomposition in the small volume sediments. High-resolution experimental data of molar content of hydrates in the synthesis and decomposition process can be easily obtained. According to the temperature control module, the influence of the temperature change on the gas pressure is effectively avoided, and the calculation accuracy of the hydrate content change is further ensured.

The invention provides a solid pollutant remover spraying device with a flange-type inlet. The solid pollutant remover spraying device with the flange-type inlet comprises the remover inlet, a removerspray gun flange, remover spray guns, remover outlets and a remover guide board, wherein the remover inlet and the remover outlets are formed in the remover spray guns, the remover spray gun flange is arranged on the remover spray guns, the remover spray guns are provided with spray pipes with a number equal to or larger than 2, the remover guide board is welded to the spray guns through a support, and is longitudinally distributed along the spray guns, a cross section is in a shape of the Greek letter omega, moreover, by means of flat wing surfaces which extend from the remover guide board,the area of the remover guide board can be enlarged, the portion, located in a smoke contact position, on the lower reach of the remover guide board forms a low pressure area, thus turbulence of fluidis enhanced, effects of smoke are avoided, a spraying area of a remover is enlarged, thus the remover and the corresponding fluid are combined better, and the remover guide board is arranged below aninlet curved pipe, so that the spraying quantity of each spray gun is further uniformized.

The invention discloses a sensor preparation method, a strain grid preparation device and a sensor. The sensor comprises a base body, an analog-to-digital converter, electrodes and a strain grid, wherein the base body is made of wood, the analog-to-digital converter, the electrodes and the strain grid are arranged on the surface of the wood, the input end of the analog-to-digital converter is connected with the two electrodes, the strain grid is located between the two electrodes, the two ends of the strain grid are connected with the two electrodes respectively, and the strain grid is made of a three-dimensional porous carbon material. The preparation process comprises the steps that wood is placed in a vacuum environment, and the strain grid is marked and generated on the surface of the wood through a laser induction method; the analog-to-digital converter is installed on the wood; and two electrodes and wires connected with the electrodes are laid on the wood through conductive materials, the two electrodes are connected with the two ends of the strain grid respectively, and the wires are connected with the analog-to-digital converter. The sensor can be degraded, so that environmental protection is facilitated.

The invention discloses a titanium tetrachloride preparation system and its isolation system, and a method for treating tail gas of a titanium tetrachloride refining system, including a titanium tetrachloride refining system, a chlorination condensation system, a tail gas rinsing system and an isolation system, Wherein, the tail gas outlet of the titanium tetrachloride refining system is connected to the head end of the tail gas pipeline of the isolation system; the tail gas outlet of the chlorination condensation system is connected to the tail gas rinsing system. The isolation system includes a tail gas pipeline, a liquid sealing tank and a breathing tube, wherein the head end of the tail gas pipeline is used to communicate with the refining system, and the end extends below the liquid level of the liquid sealing tank. The end is connected to the liquid sealing tank and is located above the liquid level, and the end is used to connect to the chlorination condensation system. The present invention adopts the liquid sealing tank to realize the isolation between the refining system and the follow-up system, thereby effectively avoiding the pressure influence of the follow-up system on the refining system in the prior art.

The invention provides a flange type inlet pollutant solid remover spraying device. The flange type inlet pollutant solid remover spraying device comprises a remover inlet, a remover spray gun, a remover outlet, a remover guide plate and remover uniform-spacing plates, wherein the remover inlet and the remover outlet are formed in the remover spray gun; the remover spray gun is provided with a plurality of spray tubes; the remover guide plate is welded on the spray gun through a bracket, and is longitudinally arranged along the spray gun, and the cross section of the remover guide plate is Omega-shaped; moreover, the flat wing surface extended from the remover guide plate can increase the area of the remover guide plate, so that the remover can completely cover each circulating surface ina flue, and therefore, the remover is guaranteed to uniformly spread, and concentration distribution is reasonable; the remover uniform-spacing plates are arranged below an inlet bent tube, and a remover flowing in through the bent tube is uniformly distributed into each spray tube, so that pollutants in the smoke gas are guaranteed to be sufficiently in contact with the remover, and therefore, removal of the pollutants is guaranteed to reach the ideal degree. Besides, the pollutant solid remover spraying device has the advantages of being easy in replacing and convenient in maintaining and repairing.

The invention discloses a valve structure with a built-in circulation channel. The switching valve includes a 3-channel to multi-channel high-pressure liquid or gas valve with the structure. Specifically, the valve structure comprises: a valve stator connected to a pipeline and a valve rotor with the built-in circulation channel structure. The stator structure has no difference with the prior art, however the rotor has fundamental change compared with the prior art. For the rotor, the traditional surface arc-shaped groove is successfully changed into an inclined hole of the built-in circulation channel, thus fundamentally solving the key problems of end face wear caused by valve stator and valve rotor asymmetry, end face pressure nonuniformity brought about to rotation when the valve works under pressure and no pressure, and easy liquid leakage of an arc-shaped groove structure, etc.

The invention relates to an automatic gas sample collection station for monitoring greenhouse gas emission flux. The collection station comprises a power system, a master control system, an automatic static box, a water seal system, an automatic static box lifting system, a gas collection system, a gas injection system, a positioning system and a sample disc collection system. The main operating processes of the station comprises the following steps: supplying power through the power supply, sequentially controlling the covering of the box, the adding of water and sealing, collecting of gas, positioning of a sample bottle and injecting of gas through the master control system and recording environmental conditions during gas collection. After the gas sample is completely collected for the first time, the automatic static box is controlled to open, and sampling starts again when the next sampling time reaches. The master control system can transmit instructions through field key operation and also can be remotely or wirelessly controlled to operate or transmit a status report. The automatic gas sample collection station is mainly used for fully automatically sampling and monitoring greenhouse gases emitted from agriculture, forestry, grassland and natural ecosystem environments and also can be used for automatically sampling gases during atmospheric environmental monitoring.

The invention relates to the technical field of coke oven thermal adjustment, and specifically discloses a method for measuring and adjusting the temperature of a regenerator. The method is applied to the regenerative coke oven system, comprising the following steps: using a temperature measuring device to simultaneously measure the temperature of small gas flues and air flues with the same number; judging the heating mode of the regenerative coke oven system, and raising the temperature The opening of the adjusting flap of the high small flue is enlarged, and the opening of the adjusting flap of the small flue whose temperature needs to be lowered is reduced. If the coke oven system is heated by coke oven gas, the temperature difference is adjusted to the first temperature and Between the second temperature, if the coke oven system is heated by blast furnace gas, the temperature difference is adjusted to be between the third temperature and the fourth temperature. With the help of the above method, the two regenerators can preheat the rising airflow to a similar temperature, avoiding the impact on the pressure of the fire hole and the air coefficient in the combustion chamber, reducing the heat carried out by the exhaust gas, and improving the exchange rate of the regenerator. Thermal efficiency, improving the uniformity of coke oven straight-line temperature.

The invention discloses a stable-pressure flat plate overflow valve, and belongs to the technical field of engine lubricating systems. The stable-pressure flat plate overflow valve has the following beneficial effects: 1) a valve body is high in function integration degree, comprises mounting and positioning functions of related parts, and is small in structural size and various in function; 2) the system pressure stabilizing effect is excellent; as a flat plate valve structure is adopted, the influence on the system pressure by hydraulic power is prevented; and during opening of the overflowvalve, the system working pressure cannot fluctuate; and 3) the pollution resistance is high; and a filter screen is arranged in an inlet of the overflow valve to guarantee no blockage of a planar sealing structure.

The invention discloses a novel PVC sheet grabbing device. The device comprises a support, suckers and a pressure regulator; a support main body is shaped like a Chinese character 'tian' and is adjustable in size, and sucker bases are formed on all joints downwards; the outer wall of each sucker base is shaped like a cylinder, the bottom concaves inwards, an internal thread is formed in the innerwall, and a circular hole running through the corresponding sucker base is formed in the top of each sucker; a cylindrical fixed station is formed on the top of each sucker, an air duct penetrates through the center of the top of each fixed station, and an air flow channel connecting a cavity of each sucker with the outside is formed; an external thread is formed in the side wall of the fixed station; the pressure regulator is connected with each air duct through an air guide device. The pressure regulator is internally provided with a main controller, an air pressure sensor and a buzzer, anda machine shell is provided with an LED lamp; a globe valve is arranged on a first connector. The device is simple in structure, convenient and practical, the support size is adjustable, and the device can be applicable to PVC sheets with different sizes conveniently; meanwhile, the suckers are easy to replace, the suckers are easy to troubleshoot, and convenience is brought to maintenance.

The invention discloses a method for enhancing quality of lignite by using saturated vapor. Screened lignite blocks are processed by quality enhancement by using saturated vapor, and pressure, temperature and holding time are utilized to achieve the goals of extruding water out of lignite, sealing the capillary bores of lignite and realizing the hydrophobicity of lignite; and meanwhile, wastewater, which is generated in the quality enhancement process and recycled after discharged vapor is condensed, is converted into steam to be supplemented to the saturated vapor, and the generated non-condensable gas is directly discharged after no-pollution treatment. Thus, the production cost in the quality enhancement process is greatly lowered, the energy utilization ratio is enhanced and the environmental pollution is reduced. The method has high safety and is convenient for operation, and virtuous cycle of the lignite quality enhancement process is truly realized; and the quality-enhanced lignite is simple and convenient for transportation and storage, and has wide applicability and wide market prospects.

The invention discloses a garbage can lifting device with a weighing function, and belongs to the technical field of garbage trucks. The garbage can lifting device comprises a lifting mechanism, a pressing plate mechanism, a turnover mechanism and a weighing mechanism, the weighing mechanism comprises a weighing plate, and a clamping block used for being conveniently connected with a garbage can in a matched and clamped mode is installed on the weighing plate; and a pressure sensor is installed below the weighing plate, a spring used for jacking the pressing plate mechanism along with the weighing mechanism is further installed on the weighing plate, and the spring can enable the pressing plate mechanism to be jacked up in the process that the garbage can is lifted along with the weighing mechanism, so that the situation that weighing is affected due to the fact that the pressing plate mechanism presses the garbage can is avoided. The problem that in the prior art, weighing of the garbage can is not accurate is solved.

The invention relates to the field of solar photovoltaic technology, and discloses a solar photovoltaic auxiliary device that automatically removes ice and snow according to changes in gravity. Groove, inclined air hole, blower device, and inclined water spray hole, the lower end of the sliding rod is connected with the metal ball corresponding to the rheostat, the two sides of the lower end of the bottom plate are connected with the first sliding rod and the second sliding rod, the first sliding rod A through hole is opened on the left side of the cleaning device, and an electric heating block is connected inside the cleaning device. The metal ball on it is driven by the sliding rod to slide on the variable resistor, the circuit of the electric heating block and the air blowing device in the annular groove on the cleaning device is connected, the inclined air hole is opened, and the air blowing device passes the heat generated by the electric heating block through The oblique air hole is blown to the photovoltaic panel. This structure solves the problem of low ice and snow removal efficiency and easy damage to the solar panel by the existing solar panel cleaning device.

The invention discloses a leakage detection system and an operation method for a water cooling radiator, and the system comprises a circulating pipe connected with a water cooling radiator, pressure detection sensors and an isolating valve. The isolating valve is used for opening or closing the circulating pipe. The pressure detection sensors are disposed between the isolating valve and the circulating pipe, and detect the internal pressure change of the circulating pipe. The system also comprises a gas processing device. The gas processing device is disposed at the other end of the isolating valve. The gas processing device comprises a gas buffering storage tank, a temperature detection unit, a gas compensation unit, and a control unit. One end of the gas buffering storage tank is connected with compressed air through a pressure regulating valve, and the other end of the gas buffering storage tank is communicated with the isolating valve. The temperature detection unit is disposed in the gas buffering storage tank, and is electrically connected with the control unit. The system and method are low in detection cost, and are high in detection efficiency and precision. The system and method carry out the preprocessing of detection gas, and greatly reduce the external factors affecting the detection precision.

The invention relates to the technical field of coke oven thermotechnical regulation, and particularly discloses a method for measuring and regulating the temperature of a regenerative chamber. The method is applied to a heat accumulating type coke oven system and comprises the following steps: simultaneously measuring the temperatures of a small gas flue and a small air flue with the same serial number by using a temperature measuring device; judging the heating mode of the heat accumulating type coke oven system, expanding the opening degree of the adjusting turning plate of the small flue with the temperature needing to be increased, reducing the opening degree of the adjusting turning plate of the small flue with the temperature needing to be reduced, if the coke oven system adopts coke oven gas for heating, adjusting the temperature difference between the first temperature and the second temperature, and if the coke oven system adopts blast furnace gas for heating, adjusting the temperature difference value to be between third temperature and fourth temperature. By means of the method, the two regenerative chambers can preheat the upflow to the similar temperature, the situation that the pressure of the observation hole and the air coefficient in the combustion chamber are affected is avoided, heat brought out by waste gas is reduced, the heat exchange efficiency of the regenerative chambers is improved, and the uniformity of the straight movement temperature of the coke oven is improved.

The invention discloses a stator lead-out wire connection structure of a three-phase asynchronous generator. The structure includes a single-turn buffered stator lead-out harness, an electrical connecting board, and special-shaped topological binding terminals. The single-turn buffered stator lead-out harness includes three stator lead-out wires, and each stator lead-out wire includes a first vertical part, a second vertical part and a bending part from top to bottom. One end of each special-shaped topological binding terminal is welded with the first vertical part of one corresponding statorlead-out wire, and the other end of each special-shaped topological binding terminal is connected with the electrical connecting board. According to the invention, the risk of fatigue damage of the stator lead-out wires under the condition of long-term vibration of a generator can be reduced, and the service life of the generator can be prolonged.

The invention relates to an isolated working heart dual-channel perfusion experiment method and device for large animals, in particular to isolated working heart dual-channel perfusion experiment method and device for large experimental animals such as pigs or large dogs. The method and device has the advantages that consumption of oxygen-rich anticoagulant blood is saved, heart performance is tested more comprehensively and required equipment is simple. The method is characterized by including: stopping an animal heart, subjecting bilateral coronary, pulmonary artery, pulmonary vein and artery to catheterization, and perfusing a coronary system with the oxygen-rich anticoagulant blood by means of bilateral coronary catheterization; recovering blood pumped out of the pulmonary artery from a right ventricle, testing with an experimental device, oxygenating, and perfusing the coronary with the oxygenated oxygen-rich anticoagulant blood to form an anticoagulant blood closed loop; perfusing with constant temperature physiological solution by a catheter in the pulmonary vein, and recovering the physiological solution through a catheter in the artery to form a physiological solution closed loop; reviving the heart by electrical stimulation.