52results about How to "Good adaptability to working conditions" patented technology

The invention provides a high-performance PTFE (Polytetrafluoroethylene) needled felt filter material and a preparation process thereof. The filter material sequentially comprises a fine denier PTFE fiber mesh layer, a first base fabric layer, an upper PTFE fiber mesh layer, a second base fabric layer and a lower PTFE fiber mesh layer; the fine denier PTFE fiber mesh layer is made by pre-treating, pre-opening and carding a fine denier PTFE fiber, the first base fabric layer and the second base fabric layer are made by pre-treating PTFE base fabrics, and the upper PTFE fiber mesh layer and the lower PTFE fiber mesh layer are made by pre-treating, pre-opening and carding common PTFE fibers. The filter material provided by the invention is stable in structure, high in filter precision and strength, and good in heat resistance and corrosion resistance, and is used for filtering smoke and collecting products under various complex working conditions.

The invention discloses a closed type hydraulic transmission system which solves the problem that impact pressure on a motor shell caused by high-pressure oil during status switching and a certain amount of pressure existing in a loop when a hydraulic motor does not work produce resistance on vehicle running. The closed type hydraulic transmission system comprises a power input mechanism, a hydraulic pump assembly, a hydraulic control valve set, a first hydraulic motor, a second hydraulic motor, a non-pressurization oil tank and a control unit. The power input mechanism is in mechanical connection with the hydraulic pump assembly which is in pipeline connection with the hydraulic control valve set, the hydraulic control valve set is in pipeline connection with the first hydraulic motor and the second hydraulic motor respectively, the first hydraulic motor is in mechanical connection with a load mass body of the first hydraulic motor, the second hydraulic motor is in mechanical connection with a load mass body of the second hydraulic motor, both the hydraulic pump assembly and the hydraulic control valve set are in pipeline connection with the non-pressurization oil tank, and the control unit is connected with the hydraulic pump assembly and the hydraulic control valve set through signal wires.

The invention discloses a planet gear bearing forced lubricating device for a wind power generation gearbox. The planet gear bearing forced lubricating device comprises a box body, a planet carrier, a planet gear, a bearing and a planet pin; the planet carrier is rotationally supported on the box body; the planet pin is arranged on the planet carrier; the planet gear is rotationally supported on the planet carrier by the bearing; the inner lateral surface of the planet carrier, which is opposite to the inner lateral surface of the box body, is provided with a ring-shaped convex retainer; a centrifugal oil collection cavity is formed between the inner lateral surface of the planet carrier and the inner wall of the ring-shaped convex retainer; the box body is provided with an oil injection duct and a spray nozzle is arranged on the box body; the oil injection duct is communicated with the spray nozzle; an outlet of the spray nozzle is toward the centrifugal oil collection cavity on the planet carrier; the planet pin is provided with an oil passage; an inlet of the oil passage is communicated with the centrifugal oil collection cavity; and an outlet of the oil passage is communicated to the position of the bearing positioned outside the planet pin. The planet gear bearing forced lubricating device has reasonable structure and is convenient to process and manufacture; and the oil supply can be regulated according to the working conditions.

The invention relates to a through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine which belongs to the field of railway bridge erection equipment. A folding front support leg and an auxiliary support leg are connected on the bottom surface at the front part of a main girder of the lifting bridge girder erection machine, and the rear end of the main girder is connected with an O-shaped rear support leg; a front lifting girder overhead crane and a rear lifting girder overhead crane are arranged on the main girder, a hoisting component is mounted at the middle part of the main girder, a pilot girder lifting machine and a pilot girder through-hole overhead crane are connected on a track on the upper end surface of the main girder, and the pilot girder through-hole overhead crane is positioned at the front end of the main girder; and a lower pilot girder machine comprises a pilot girder front support leg and a pilot girder rear support leg of the main girder of a lower pilot girder, and the pilot girder front support leg and the pilot girder rear support leg are arranged at the front end part and the rear end part of the main girder of the lower pilot girder. The through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine has the advantages that the packing through-tunnel state of the through-tunnel lower pilot girder type non-moving lifting bridge girder erection machine is the pilot girder front-mounted type state, and the pilot girder machine can be in place when going out of a tunnel, thereby greatly improving the erection efficiency for resetting the whole machine after going out of the tunnel, being good in adaptability to working conditions, saving construction time, saving construction cost, and being smooth, safe and reliable.

The invention relates to a plug-in electric rotary tiller. The plug-in electric rotary tiller comprises a rotary tiller body, a rotary tiller roller cutter, a roller cutter shaft assembly, a suspension rod member, a reducer assembly, an electric control box body and a rotary tiller circuit assembly, wherein the rotary tiller circuit assembly includes an electrical interface part, an implement operation management part and an implement driving part, and the electrical interface part is used for quickly and reliably connecting the rotary tiller with an electric tractor by using a power transmission cable in a multi-contact electrical connector plugging mode, so that the rotary tiller circuit assembly is connected into the whole machine power grid of the electric tractor, and transmission ofelectric energy and data between the tractor and the rotary tiller is achieved; and the implement operation management part is used for performing coordinated management on power-on starting, implement driving, power-off stopping, high-voltage power safety management, implement running state monitoring, an electrical interface connection process and other processes of the rotary tiller, and the implement driving part is used for receiving demands of a rotary tiller management control unit, controlling a driving motor to output a corresponding electromagnetic torque, and driving the rotary tiller to work.

A network-connected hybrid electric vehicle energy management system of a distributed MPC comprises an engine, a clutch, a motor, a transmission and batteries. The MCU of the motor is connected with the TCU of the transmission and the ECU of the engine; the batteries are respectively connected with the motors; the batteries transmit power to the motor; working modes comprise pure electric driving, pure engine driving, hybrid driving, driving charging and regenerative braking; the method by means of the network-connected hybrid electric vehicle energy management system comprises the following steps: 1, modeling a parallel hybrid electric vehicle; 2, predicting the speed of the networked hybrid electric vehicle; and 3, constructing a distributed MPC energy management method; the system and the method have the characteristics of good calculation efficiency, fuel economy and working condition adaptability.

The invention provides a two-stage gas-liquid separation device. With the adoption of the two-stage gas-liquid separation device, gas and liquid in a gas-liquid mixture with unstable flowing speed and flowing rate can be effectively separated and are respectively discharged to realize the environment-protecting effect; and the working load is large and the working-condition adaptability is good. The two-stage gas-liquid separation device comprises a coarse-separation and sewage-collection barrel, wherein the upper part of the coarse-separation and sewage-collection barrel is connected with a fin filter by a discharging pipe and the fine filter is connected with a silencer by a pipeline; a discharging port at the lower end of the fine filter is connected with the coarse-separation and sewage-collection barrel by a pipeline; and a sewage discharging pipe is arranged at the lower part of the coarse-separation and sewage-collection barrel. A plurality of partitioning plates are arranged in coarse-separation and sewage-collection barrel and are partially partitioned, so that the internal contact area is enlarged, and the gas-liquid separation effect can be enhanced. A porous baffle is arranged at the lower end of the coarse-separation and sewage-collection barrel.

The invention provides a moving bed type blast furnace gas desulfurization device and a desulfurization method thereof. The blast furnace gas desulfurization device comprises a shell, a catalyst partition plate set is arranged in the shell in the axial direction, and the catalyst partition plate set comprises an inner ring partition plate piece and an outer ring partition plate piece which are coaxially nested from inside to outside; and an annular cavity formed between the inner ring partition plate piece and the outer ring partition plate piece is filled with a catalyst, and a feeding port is formed in the top, where the annular cavity is located, of the shell. A cavity defined by the inner ring partition plate piece is an exhaust channel, a cavity between the outer ring partition plate piece and the shell is an air inlet channel, and an air inlet communicated with the air inlet channel is formed in the bottom of the shell. Compared with a traditional fixed bed packed tower, the resistance in the tower is reduced, the moving bed improves the utilization rate of the catalyst, and the blast furnace gas desulfurization efficiency can be remarkably improved.

The invention discloses an energy management control method for a hybrid electric vehicle. The energy management control method comprises the steps that S100, a vehicle control unit sends access signals to a fuel cell and storage battery energy source controller, an energy storage system controller and a driving system controller and obtains signal data; and S200, the vehicle control unit enablesa system to switch a corresponding driving mode according to the signal data, wherein the step S300 is executed when the system is switched to the driving mode with the optimal economical efficiency,the step S400 is executed when the system is switched to the maximum electric driving mode, and the step S500 is executed when the system is switched to the driving charging driving mode. The workingmode of the hybrid power system can be adjusted according to the working conditions in the steps S300, S400 and S500, so that the optimal system economy in the whole driving working condition range isrealized. Correspondingly, the invention further discloses an energy management control system for the hybrid electric vehicle. The energy management control system comprises a whole vehicle controller, a fuel cell energy source controller, a storage battery energy source controller, an energy storage system controller and a driving system controller, and the system can be used for executing themethod.

The invention discloses a design method for a pump displacement non-linear controller for a hub hydraulic hybrid power system, and belongs to the field of hybrid vehicle control. By starting from determination for a pump displacement control target, a state-space equation of a pump displacement execution mechanism is acquired with a least squares identification method, then a steady-state controldemand meeting the pump displacement control target and reference expectation dynamic compensation are calculated respectively, the constructed non-linear dynamic feedback controller is designed by combination with the Lyapunov stability principle, and finally, a final expression form of the pump displacement non-linear controller for the hub hydraulic hybrid power system is obtained. The pump displacement non-linear controller designed with the method takes influence produced by response lag and parameter time-varying of a variable pump displacement regulating mechanism into consideration, has better robustness and resistance to external interference and is quite essential for improvement of displacement tracking control quality of the hub hydraulic hybrid power system.

The invention discloses an electric drive type high-energy mixer for well cementation. The electric drive type high-energy mixer for well cementation comprises an ash valve main body, the bottom of the ash valve main body is provided with a mixer cavity through a connecting union, the side surface of the mixer cavity is fixedly connected with a water valve main body, a mixer cavity body is provided with a flange plate, the flange plate is positioned below the water valve main body, and the bottom of the mixer cavity is provided with a conical disc. The invention further discloses a mud premixing control method. The problems that in the prior art, a hydraulic drive type high-energy mixer is slow in response, poor in mud premixing effect and high in cost are solved.

The invention relates to a lithium battery pack SOC measuring device and method, and belongs to the field of new energy measurement and control. The method is characterized in that in allusion to a lithium battery pack SOC measurement target, an SOC value is measured accurately through building a lithium battery pack targeted battery maintenance and test system (BMTS) platform; networking control is realized through an RS485 bus mechanism, and an embedded monitor and control generated system (MCGS) and an industrial personal computer (IPC) are equipped to realize local control and remote control; an aviation head is additionally arranged and a jumper identification code is allocated so as to improve the adaptability for various types of lithium battery packs; and three-level protection is realized through additionally arranging an independent protection unit (IPU) in a main charging and discharging circuit. According to the lithium battery pack SOC measuring method, a series charging to equalization charging process is integrated on the basis of constant current (CC) discharge so as to improve the capacity utilization efficiency of the lithium battery packs; and a problem that each single battery is fully charged is solved through constant current (CC) charging to constant voltage (CV) charging mode switching, and effective measurement for the SOC value is realized.

The invention discloses a multi-stage compressor, an air conditioner system and a control method of the multi-stage compressor. The multi-stage compressor comprises at least one high-pressure-stage air cylinder and at least one low-pressure-stage air cylinder (14), wherein a by-pass port (11) is formed in a side wall, which corresponds to an air suction side, of each low-pressure-stage air cylinder (14); each by-pass port (11) communicates with an air suction opening (13) of the corresponding low-pressure-stage air cylinder (14) through a by-pass backflow channel (12); and a control mechanism which controls switch-on and switch-off of air flow is arranged on each by-pass backflow channel (12). By the arrangement, the volume ratio of the multi-stage compressor provided by the invention can be adjusted, and is not fixed any more, therefore, when the compressor runs at loads under different working conditions, the volume ratio of the compressor can be adjusted to be the optimal volume ratio corresponding to the working conditions, and the working condition adaptability of the compressor is good. Compared with the multi-stage compressor with the fixed volume ratio, the multi-stage compressor is better in integral comprehensive energy efficiency.

The invention provides a hydrolysis reaction device and hydrolysis method for organic sulfur in blast furnace gas, the hydrolysis reaction device comprises a shell, a catalyst partition plate group is arranged in the shell along the axial direction, the top surface of the catalyst partition plate group clings to the top surface of the shell, and the top surface of the catalyst partition plate group clings to the bottom surface of the shell. A cavity formed between the bottom surface of the catalyst partition plate group and the bottom surface of the shell is an air inlet chamber; wherein the catalyst partition plate group comprises an inner ring partition plate piece and an outer ring partition plate piece which are coaxially nested from inside to outside, an annular cavity formed between the inner ring partition plate piece and the outer ring partition plate piece is filled with a hydrolysis catalyst, an annular bottom plate is fixed on the bottom surface of the catalyst partition plate group, and the annular bottom plate seals the bottom of the annular cavity; and a cavity defined by the inner ring partition plate piece is an exhaust channel, a cavity formed between the outer ring partition plate piece and the side wall of the shell is an air inlet channel, and the air inlet chamber is communicated with the air inlet channel. An air inlet communicated with the air inlet chamber is formed in the bottom of the shell.

The invention relates to a friction type clutch transient temperature calculation method based on an environment temperature coefficient. The method is characterized in that an improved two-parametermodel is adopted; iterative calculation is carried out on the clutch transient temperature; in the improved two-parameter model, the temperature rise coefficient is replaced by the product of the environment temperature and the first proportionality coefficient, the heat dissipation coefficient is replaced by the product of the environment temperature and the second proportionality coefficient, the first proportionality coefficient represents the relation between the temperature rise coefficient and the environment temperature, and the second proportionality coefficient represents the relationbetween the heat dissipation coefficient and the environment temperature. Compared with the prior art, the method has the advantages of higher precision, stronger working condition adaptability, quick response and the like.

The invention relates to a friction-type clutch transient temperature measuring method and a device based on a six-parameter model. By using the six-parameter model to replace a two-parameter model, iteration calculation of clutch transient temperature is carried out based on acquired real-time environmental temperature, starting temperature, and speed difference. In the six-parameter model, a temperature rising coefficient and a heat dissipation coefficient are replaced by a linear function adopting the environmental temperature and slipping friction power as variables. Compared with the prior art, the fact that the heat generated by the friction is related to the radius of the clutch is considered, and the acquired model is more accurate than the original model when being compared in theactual condition, and the linear relation between the model parameter of the used model (the temperature rising coefficient and the heat dissipation coefficient) and the environmental temperature andthe slipping friction power is found out, and is brought into the two-parameter model, and then the working condition of the improved model is better; compared with a four-parameter model, because ofadditional providing of constant terms, the completion of the model is compensated, and the accuracy is relatively high.

The invention provides a series-parallel hybrid power system based on a single-planet set single gearbox. A hybrid power assembly is arranged conveniently, types of hybrid power products are expanded,power transmission continues, and the system is suitable for various complex working conditions. The system comprises an engine, a first motor, a gearbox, a second motor and a planet tooth row structure, the gearbox is integrated with the planet tooth row structure, and the planet tooth row structure specifically comprises a sun wheel, a planet wheel frame and a gear ring; a first output shaft ofthe planet wheel frame penetrates through a second hollow input shaft of the sun wheel and is connected to the output end of the engine, the output part of the first motor sleeves the second hollow input shaft, several planet wheels are distributed on the planet wheel frame annularly, and the inner side of the planet wheel is meshed with the sun wheel radially, and the outer side of the planet wheel is meshed with an inner gear ring of the gear ring radially.

The invention discloses a multistage compressor, an air conditioning system and a controlling method of the multistage compressor. The multistage compressor comprises at least one high-pressure stage cylinder and at least one low-pressure stage cylinder, wherein a bypass hole is formed in the side wall, corresponding to the suction side of the high-pressure stage cylinder and is communicated with the suction hole of the high-pressure stage cylinder through a bypass backflow passage; and in addition, the bypass backflow passage is provided with a control mechanism for controlling on-off of an airflow. According to the multistage compressor, with the arrangement, adjustable volume ratio of the compressor can be realized, the compressor does not have fixed volume ratio any longer, and therefore, the volume ratio can be adjusted to the optimal volume ratio corresponding to the working condition when the compressor runs under different working condition loads, the working condition adaptation of the compressor is better, and the comprehensive energy efficiency of the compressor is better compared with that of the whole multistage compressor with fixed volume ratio.

The invention discloses a curvature continuous valve with an adjustable flow channel. The curvature continuous valve comprises an air pump module, a valve body module, a connecting module and a flow channel adjusting module; the air pump module comprises an air pump power interface, an air pump main body and an air pump output hole; the valve body module comprises a base body, a valve top, a valve bottom and a valve element; the connecting module comprises an upper gasket, a lower gasket, a valve body fixing bolt and an air cylinder fixing bolt; a flow channel adjusting module comprises a right flow channel adjusting module and a left flow channel adjusting module; and the air pump module is connected to the valve top through the valve body fixing bolt, and the flow channel adjusting module is connected to the base body through the air cylinder fixing bolt. The inclination angles of a right flow channel and a left flow channel in the valve are adjustable, and the angles of the right flow channel and the left flow channel can be adjusted according to the flowing-out angle of a fluid medium so as to facilitate flowing-out of the fluid medium; and the air pump module is adopted to replace an existing setting spring to achieve adjustment of the setting pressure, and the adjustable range of the setting pressure is larger.

The invention relates to the technical field of industrial waste heat recycling, solves the problem that low-grade waste heat in current industrial production is difficult to recycle, and particularly relates to a low-grade industrial waste heat recycling system which comprises an energy recycling front end for recycling industrial waste heat and converting heat energy into electric energy, the energy utilization rear end is used for utilizing the electric energy converted by the energy recovery front end, the energy recovery front end is connected with the energy utilization rear end through a wire, and the energy recovery front end comprises a heat expansion plate, a first heat conduction layer, a device layer, a second heat conduction layer and a heat dissipation layer which are sequentially arranged from top to bottom. According to the system, the purpose of directly converting low-grade industrial waste heat into electric energy for recycling is achieved, one-step recycling of the industrial waste heat can be achieved, and the system is simple in structure, free of maintenance, free of noise and pollution in work and excellent in working condition adaptability and has very wide application prospects.