40results about How to "Precise raise" patented technology

The invention aims to provide a BEV (battery electric vehicle) thermal management system and a cooling liquid filling method thereof. The BEV thermal management system comprises an electric drive part thermal management sub-system and a passenger bin and battery thermal management sub-system. The electric drive part thermal management sub-system comprises a first overflow kettle, a first water pump, a radiator and an electric drive heat exchanging part, wherein one end of the radiator is connected with the first port of the electric drive heat exchanging part, the other end of the radiator is respectively connected with the first overflow kettle and the first port of the first water pump, and the second port of the electric drive heat exchanging part is respectively connected with the first overflow kettle and the second port of the first water pump. The BEV thermal management system and the cooling liquid filling method thereof have the advantages that effective thermal management of auto parts and accurate cooling liquid filling are achieved; the BEV thermal management system provides a good thermal management function for the electric drive part, a passenger bin and a battery, comfortableness of the passenger bin is guaranteed, and the electric drive part and the battery are enabled to be in an appropriate temperature range.

The invention relates to a method and a system for controlling coagulant dosing through on-line prediction of turbidity after flocculation water sedimentation. The method comprises the following steps of: making raw water enter a flocculation tank to mix, react and flocculate with the added coagulant so as to generate a flocculating substance; collecting the flocculation water in real time through a sensor for measuring the turbidity under the water at the tail end of the flocculation tank; sedimenting in the sensor in the given sedimentation time, and measuring the turbidity; comparing the measured value with the set value; and after the difference is subjected to PID operation, obtaining the needed dosing ratio, and multiplying the dosing ratio with the water inlet flow to obtain the dosing, converting the dosing into a standard current output signal to control the dosing of a dosing pump, and dosing the coagulant on line. The system consists of the flocculation tank, a sedimentation tank, the dosing pump, a coagulation tank, a microprocessor and a sensor 5 which is specially designed for measuring the turbidity. Due to adoption of the sensor for measuring the turbidity, the turbidity after flocculation water sedimentation can be accurately measured on line without being disturbed by other factors. Therefore, the on-line coagulant dosing can be accurately controlled, the coagulant dosing is reduced, the water purification quality is improved, and the water purification cost is lowered.

There is provided a power circuit for a display-device-driving circuit for supplying a plurality of voltages to a driving circuit for time-division-driving a display device, wherein each of the plurality of voltages are output via a constant-voltage circuit constituted by a regulator for dividing a voltage supplied from a power source and keeping divided voltages at a certain voltage level, whereby a stable power source consuming a small power to a driving circuit as a power source for a display device to be time-division-driven can be obtained.

The invention relates to an industrial intelligent lubricating system and a control method. The industrial intelligent lubricating system comprises oiling equipment, a grease reversing valve, a three-way switching valve, a grease distributor, an industrial touch screen and an electric panel cabinet; the oiling equipment is sequentially communicated with the grease reversing valve, the three-way switching valve and the grease distributor; a plurality of output ports in the grease distributor are respectively connected with a plurality of high-pressure oil pipes; oil filling nozzles connected with the ends of the high-pressure oil pipes are connected with lubricating points of an equipment mechanism to form a plurality of oil filling loops; the electrical panel cabinet is electrically connected with the oiling equipment, the grease reversing valve and the industrial touch screen to form a control system; oil is filled into the lubricating points of the equipment mechanism in a fixed-point, quantitative and timed mode by controlling opening and closing of the oil filling loops; centralized control is achieved; grease filling recording errors and filling omission or repetition are avoided; and the operation stability of large-scale complex equipment machinery can be improved.

The invention relates to the technical field of shale gas repeated development, and particularly discloses a shale gas horizontal well casing-fixation-in-casing refracturing method. The method comprises the following steps of 1, performing residual potential analysis, and carrying out a gas production profile test to obtain the gas production contribution percentage of each cluster of primary fracturing; 2, performing well cementation of an original shaft, and installing a small casing pipe in the original shaft to form a new shaft; 3, performing fracturing design, analyzing the recovery degree of each section and each cluster in the original shaft according to the gas production contribution percentage, clearly determining the shale gas residual potential distribution condition in combination with the transformation effect of the original shaft during primary fracturing, determining the perforation position of refracturing according to the residual potential distribution condition, and performing displacement optimization and pump injection program optimization design; and 4, performing fracturing construction. The shale gas horizontal well casing-fixation-in-casing refracturing method solves the technical problems of high construction difficulty and low adaptability in a long horizontal section shale gas well in an existing technology.

The invention relates to a novel liquid filling device. The novel liquid filling device comprises a liquid storage container and an extrusion container internally provided with a piston, the piston divides an inner cavity of the extrusion container into a liquid injection cavity and an extrusion cavity, the liquid injection cavity is used for communicating with the liquid storage container, the extrusion cavity is used for allowing an extrusion power medium to enter to exert pressure on the piston so as to extrude a liquid within the liquid injection cavity, the piston is assembled in the extrusion container in a sliding sealing mode, a liquid injection pipeline is connected to the liquid injection cavity, and a liquid injection vacuumizing pipeline is used for vacuumizing the liquid injection pipeline, the liquid injection cavity and a cavity to be injected with the liquid. The novel liquid filling device is provided with the extrusion container, the liquid can be injected into the extrusion container through the liquid storage container, the piston is arranged in the extrusion container, the piston is pressed to extrude the liquid injection cavity, so that the condition that airis dissolved in the liquid due to the air directly extrudes the liquid is avoided, and the technical problem that during filling of an existing liquid filling device, air is prone to mix, and much mixed air is caused is solved.

The invention relates to the technical field of engine oil filling, in particular to an accurate engine oil filling mechanism of an engine and a filling method of the accurate engine oil filling mechanism. The accurate engine oil filling mechanism comprises an engine oil pan and an oil tank, and further comprises an electromagnetic valve, an engine oil supplementing measurement and control device, a liquid level sensor and a vertical pipe, the oil tank is connected with a liquid inlet of the engine oil pan through the electromagnetic valve, the vertical pipe communicates with the bottom of the engine oil pan, and the liquid level sensor is arranged in the vertical pipe. The liquid level signal output end of the liquid level sensor is electrically connected with the liquid level signal input end of the engine oil liquid supplementing measurement and control device, and the control signal output end of the engine oil liquid supplementing measurement and control device is electrically connected with the control signal input end of the electromagnetic valve. The filling liquid level is monitored in real time through the liquid level sensor, opening and closing of the electromagnetic valve are controlled through the engine oil liquid supplementing measurement and control device, and accurate filling of engine oil is achieved.

The invention discloses a novel processing method and mould for a railway cushion plate. A processing platform and the processing mould are included, a bearing support is fixed to the lower end of theprocessing platform, and a mould position adjusting structure is fixed to the upper end face of the processing platform. A first bearing frame is arranged on the right side of the mould position adjusting structure, a processing raw material filling structure is installed on the outer side of the first bearing frame, a second bearing frame is arranged on the right side of the first bearing frame,a pressurized shaping structure is installed on the outer side of the second bearing frame, and the processing mould is arranged below the pressurized shaping structure. According to the novel processing method and mould for the railway cushion plate, different moulds can be conveniently replaced by the processing method, the railway cushion plate with suitable structure size can be obtained, andthe processing efficiency of the railway cushion plate is improved by quick feeding and pressing shaping; and at the same time, through automatic control, the production quality of the railway cushion plate can further be improved, and the practicability of the novel processing method and mould of the railway cushion plate is greatly improved.

The invention provides an automatic seasoning allocation device for production of pickled vegetable. The automatic seasoning allocation device comprises a seasoning adding component and a major ingredient cavity arranged below a discharge port of the seasoning adding component, wherein the major ingredient cavity is arranged on a first electronic scale; the first electronic scale is electrically connected with a controller; the seasoning adding component comprises a plurality of seasoning bins; the seasoning bins are arranged above a guide rail; a batching cavity is arranged on the guide rail and moves on the guide rail under driving by a driving device; a discharge bin is arranged at one end of the guide rail; a discharge port is formed at the lower end of the discharge bin; the batching cavity moves to the discharge bin and is communicated with the discharge bin, and the discharge port of the discharge bin is opened; an electric control valve is arranged at an outlet of each seasoning bin; and the electric control valves and the driving device are electrically connected with the controller. The device has the advantages that the device can add seasoning precisely, which enables the taste of pickled vegetable to maintain consistent; and a single production line is suitable for production of different kinds of pickled vegetables with different tastes.

The invention discloses automatic oil absorbing and oil changing equipment which comprises an oil storage tank, an oil injection pump, an oil gun, a waste oil tank and an oil absorbing pump. The oil storage tank comprises an oil inlet and an oil outlet; one end of the oil injection pump is connected with oil outlet while the other end is connected with the oil gun; one end of the oil absorbing pump is connected with the waste oil tank while the other end is connected with the oil gun; the oil gun comprises a control module, an oil injection gun nozzle connected with the oil injection pump and an oil absorbing gun nozzle connected with the oil absorbing pump, and the oil absorbing gun nozzle is convex to the oil injection gun nozzle. By the arrangement that used lubricating oil is absorbed out before injection of new machine oil, simple operation is achieved; injection quantity of the machine oil is set according to different vehicle types, and one-time, quantitative and automatic injection of the machine oil is realized; leakage of the machine oil is avoided, and cleanliness and convenience are achieved.

The invention discloses energy-saving and environment-friendly chemical waste treatment equipment, and belongs to the technical field of chemical waste treatment. The equipemnt comprises a stirring device and a dosing device, the stirring device comprises a stirring box, a fixing frame is fixedly connected in the stirring box, a moving rod is slidably connected in the fixing frame, and a fixing frame is fixedly connected to the circumferential surface of the moving rod; a rotating shaft is rotatably connected in the fixing frame, the circumferential surface of the rotating shaft is fixedly connected with stirring blades, and the side end of the rotating shaft is fixedly connected with a gear; a base and a fixing strip are fixedly connected into the stirring box, a sliding groove is formed in the front end face of the fixing strip, a sliding block is slidably connected in the sliding groove, a first connecting block is fixedly connected to the front end of the sliding block, a rocker is rotatably connected to the front end of the first connecting block, a fixing shaft is rotatably connected in the rocker, a rotating disc is fixedly connected to the side end of the fixing shaft, and a first motor is fixedly connected to the rear end of the rotating disc. The equipment is simple in structure and low in manufacturing cost, liquid medicine and chemical waste liquid can be mixed only through simple operation, and the liquid medicine can be accurately injected.

The invention relates to an acetylene gas cylinder acetone supplementing device, and belongs to the technical field of gas production and split charging. By aiming at the problem that the acetone supplementing of the existing acetylene gas cylinder is not precise enough, the invention provides the acetylene gas cylinder acetone supplementing device, which can realize precise filling. The acetylenegas cylinder acetone supplementing device comprises a nitrogen gas cylinder, an acetone raw material tank, an acetone supplementing tank, a weighbridge and a controller, wherein the nitrogen gas cylinder is respectively connected with a first gas inlet of the acetone raw material tank and a second gas inlet of the acetone supplementing tank; an acetone outlet of the acetone raw material tank is connected with an acetone inlet of the acetone supplementing tank through a hose; an supplementing outlet extends to the bottom of the acetone raw material tank through a pipeline; an acetone filling opening is formed in the acetone supplementing tank; the acetone filling opening extends to the bottom of the acetylene supplementing tank through a pipeline; the acetone filling opening is connected with the gas cylinder through a hose; an electromagnetic valve is arranged between the acetone filling opening and the gas cylinder; the weighbridge is arranged at the bottom of the gas cylinder and isconnected with the controller; the controller is connected with the electromagnetic valve.