1991 results about "Flow divider" patented technology

The invention provides a vehicle interior laser cutting machine tool, and relates to the technical field of laser cutting machine tools, the vehicle interior laser cutting machine tool comprises a cutting table and a laser cutting head, the middle of the cutting table is hollow, a drawer type waste tray is movably inserted in the cutting table, one end of the cutting table is fixedly provided with a dust collector, and the other end of the cutting table is fixedly provided with an air blowing pump; shunting seats are fixedly mounted on the two sides of the cutting table, a plurality of dust collection holes are formed in the two side walls in the cutting table at equal intervals, cavities used for collecting dust are formed in the two side walls in the cutting table, and the output end of the dust collector is fixedly communicated with the two cavities in the cutting table; the adjusting assembly is installed at the top of the cutting table and used for adjusting the position of the laser cutting head, and the bearing sets are installed on the cutting table at equal intervals and used for containing the vehicle interior trim panel. According to the laser cutting machine tool, the sealing windshield is driven to be opened and closed through the rollers in the adjusting assembly, the purpose of air duct follow-up switching is achieved, and the laser cutting machine tool has the excellent cleaning capacity for kerfs of a to-be-cut piece.

A jet regulator (1) that includes, on the outflow side of a splitter unit (2), a plate-shaped carrying structure (43), from which flow obstacles (5) project on both sides into a mixing space (3).

The utility model relates to the technical field of heat pump rectification, and particularly discloses a heat pump rectification system which comprises a rectification tower; the tower top gas liquefaction system comprises a compressor connected with a gas phase at the top of the rectifying tower, and a reboiler, a throttling device, a condenser and a flow divider which are sequentially connected with the compressor; liquid phase connection at the bottom of the rectifying tower is communicated with the reboiler, the tower bottom reboiling system comprises an auxiliary reboiler and a flash evaporator which are sequentially communicated with the reboiler, and the flash evaporator is communicated to the rectifying tower; and the gas phase at the top of the rectifying tower is heated by the compressor and then enters the reboiler to exchange heat with the liquid phase at the bottom of the rectifying tower, so that the rectifying energy consumption can be reduced, and the energy-saving effect is achieved.

The invention discloses a two-dimensional bionic multi-stage conical flow divider for laser processing and an application device thereof, and the two-dimensional bionic multi-stage conical flow divider is characterized in that the upper surface and the lower surface of the two-dimensional bionic multi-stage conical flow divider are provided with micro-groove structures, and the micro-groove structures are longitudinal parallel grooves distributed in a linear array; the two-dimensional bionic multistage cone flow divider is of a bilateral symmetry structure and specifically comprises a single primary main cone and a plurality of secondary small cones on the single side, the secondary small cones are distributed on the two sides of the primary main cone at equal intervals, and the included angle between each secondary small cone and the primary main cone ranges from 9 degrees to 21 degrees. The cone angle of the first-stage main cone structure is 9-21 degrees, the length of the first-stage main cone structure is 8-12 mm, the cone angle of the second-stage small cone structure is 9-21 degrees, the length of the second-stage small cone structure is 1-3 mm, the depth of the micro-groove structure is 35-45 micrometers, and the center-to-center distance of the micro-groove structure is 28-35 micrometers. According to the two-dimensional bionic multistage conical flow divider for laser processing and the application device thereof, the problem that the efficiency of spontaneous continuous separation of existing multiphase immiscible organic liquid drops is low is solved.

The utility model relates to the technical field of underwater cleaning, and discloses an underwater cleaning system convenient to use. The system comprises an operation device, a control device, a display device and a cleaning device, the operation device is in communication connection with the cleaning device to control the cleaning device to work, the control device is in communication connection with the operation device to process information, and the control device is in communication connection with the display device to display the working environment; the cleaning device comprises a take-up and pay-off assembly, a cable assembly and a robot, the take-up and pay-off assembly is detachably connected with the robot, the cable assembly is connected with a water source and a power source, and one end of the cable assembly is connected with the robot; two first cameras are symmetrically arranged at the front end of the robot, and two second cameras are symmetrically arranged at the rear end of the robot; a cleaning piece is arranged at the front end of the robot in a swinging mode, a diverter and a circuit connector are arranged at the top, and the cable assembly is connected with the diverter and the circuit connector. The flow divider communicates with the cleaning piece through a flow dividing pipe. And through pipeline arrangement, pipeline winding occurring when the robot works is reduced, and the working safety and working efficiency of the robot are improved.

A fluid filtration system includes a fluid storage vessel such as a bioreactor, a filter housing including a filter element disposed therein, a pump coupled between the fluid storage vessel and the filter housing, and a flow diverter disposed between the pump and the filter housing. The pump is configured to move fluid from the fluid storage vessel through the filter element, and the flow diverter is configured for selectively directing fluid received from the pump to the first or second end of the filter housing. In a first mode of operation, the flow diverter directs flow through the filter housing in a first direction, while in a second mode of operation, the flow diverter directs flow through the filter housing in a second direction opposite the first direction.

The invention discloses a two-section compression type transcritical carbon dioxide heat pump system and a control method thereof. An outlet of a second compressor sequentially passes through a high-temperature heat exchanger and a flow divider and then is divided into two paths; wherein one path is communicated with an inlet of a first expansion machine through a heat flow stream inlet valve of the first heat regenerator, the hot side of the first heat regenerator and the hot side of the second heat regenerator, and the other path is communicated with an inlet of a second expansion machine through a heat flow stream inlet valve of the third heat regenerator and the hot side of the third heat regenerator in sequence; the outlet of the second expansion machine is communicated with the inlet of the mixer through the cold side of the second heat regenerator, the cold stream inlet valve of the first heat regenerator and the cold side of the second heat regenerator in sequence; an outlet of the first expansion machine communicates with an inlet of the mixer through the low-temperature heat exchanger, a cold stream inlet valve of the third heat regenerator, the cold side of the third heat regenerator and the first compressor, an outlet of the mixer communicates with an inlet of the second compressor, and the comprehensive energy efficiency of the carbon dioxide heat pump system can be improved.

The invention discloses a multifunctional intelligent cleaning wall-climbing type robot for photovoltaic panels. Comprising a hard scraper, a rolling brush, a rolling brush fixing frame, a transverse frame support, a front-end transverse frame, a water purification pipe, a main shell, a flow divider, a main body upper cover, a supporting arm base, a rotary disc, a large supporting arm, a small supporting arm, a supporting arm motor, an air pump, a telescopic mechanism, an adjustable suction cup, a crawler belt, a driving wheel, an auxiliary wheel, a water suction scraper, a sewage pipe, a transverse frame middle support, an electric telescopic device, a heating pipe and a blower device. The wiping head is connected with the friction brake; the power battery is connected with the water pump; according to the cleaning robot, shoveling, brushing, scraping and drying type cleaning is achieved, and the problems that an existing robot cannot thoroughly clean stains, and secondary pollution is caused by water stains left after cleaning are solved; the functions of skid resistance and easy steering of the robot are achieved, and the problems that an existing robot deviates when walking and is not flexible in steering are solved. The robot can automatically cross the gap between the photovoltaic panels, and the problem that an existing robot needs manual assistance to avoid obstacles is solved.

The utility model discloses a backwater flow divider which comprises an outer shell, an installation shell and a tailstock. A first mounting port and a second mounting port are formed in the two ends of the shell, a pressure reduction outlet, a pure water inlet and a pure water outlet are formed in the side face, a pressure reduction cavity and a pure water cavity are formed in the shell, a backflow port is formed between the pressure reduction cavity and the pure water cavity, and a one-way valve assembly is arranged in the pressure reduction cavity; the mounting shell is mounted at the first mounting opening and is provided with a raw water connector; a pressure reducing valve assembly is arranged in the mounting shell; the tailstock is installed at the second installation opening, and a water return assembly is arranged between the tailstock and the shell and used for controlling the amount of backflow of pure water from the pure water cavity to the pressure reduction cavity. According to the utility model, the requirements of different water outlet flows are met, a plurality of water using modes are provided, and the automatic regulation of the water outlet flow of the pure water pipeline of the water purifier is realized.

The utility model relates to the technical field of cooling-water machines, and discloses an air-cooled cooling-water machine which comprises a shell and a cooling-water mechanism installed in the shell, and further comprises moving mechanisms arranged on the two sides of the shell, a mounting frame is arranged on the surface of each moving mechanism, and a flow divider designed to be of an inclined structure is installed in each mounting frame; according to the cooling-water machine, the first baffle and the second baffle are matched to block the interior of the shell, so that contact between dust and the radiator when the cooling-water machine is not used is reduced, the heat dissipation efficiency of the radiator is improved, the influence of the dust and the cooling-water machine is reduced, and the service life of the cooling-water machine is prolonged. And meanwhile, a radiator in the water cooling mechanism can be cleaned through air under cooperation of a moving mechanism and a spray head, convenience is achieved, the cleaning efficiency of the radiator in the water cooling mechanism is improved, and the problems that when an existing water cooling machine is not used, dust cannot be blocked, and the radiator is inconvenient to clean are solved.

The invention belongs to the technical field of radon concentration measurement, and particularly discloses a device and a method for enrichment and analysis of extremely low radon concentration, the device comprises a vertically placed cylinder, and the cylinder is provided with a heating device and a supercharging device; the radon escapement structure is sleeved with the barrel and is formed by pressing activated carbon fibers, the negative pressure pump is arranged at the outlet end of the radon escapement structure and provides a negative pressure environment for the interior of the radon escapement structure to achieve air drainage and guiding, the outlet end of the negative pressure pump is connected with the flow divider, and a first channel of the flow divider is communicated with the atmosphere. The tail end of the second passage is connected with a radon detection instrument, and the second passage is used for measuring the radon concentration in the radon release stage of the radon escapement structure. According to the invention, the detection lower limit of radon concentration measurement is reduced, the problem that radon concentration in some environments is lower than the detection lower limit of radon measurement equipment and cannot be measured is solved, and support is provided for effectively evaluating the influence of environmental radiation background on extremely low background physical experiments.

The invention relates to an array type underwater propeller with high maneuverability and low energy consumption, a pump jet generating device and a flow divider jointly form a propeller front end, an intelligent fluid director forms a propeller rear end, and the pump jet generating device drives an impeller through a rotating motor to drive surrounding water flow to rotate to generate a main jet flow; an isolation structure is arranged in the flow divider and used for evenly dividing the main jet flow into multiple strands of independent sub jet flows, and all the sub jet flows form propelling power after entering the intelligent flow guider to be guided. The intelligent fluid directors are connected with the flow channels of the flow divider in a one-to-one correspondence mode and used for converting fluid flowing out of the flow divider and out of the jet flow face into effective action jet flow with the adjustable flow speed. The intelligent fluid director comprises a jet flow end regulation and control mechanism and a pressure relief end regulation and control mechanism, and the jet flow end regulation and control mechanism is used for independently regulating the flow speed of effective jet flow ejected from the fluid director; and the pressure relief end regulation and control mechanism is used for maintaining the constant flow velocity at the inlet of the fluid director by releasing part of water flow when the effective jet flow velocity is regulated.

The flow divider with the in-situ self-checking function comprises a flow divider shell, a self-checking structure is further arranged in the flow divider shell, the self-checking structure comprises a left conversion valve, a left self-checking oil way, a right conversion valve, a right self-checking oil way, a confluence oil way, a flow measuring piece, an indicating gauge and a third overflow valve, and the flow measuring piece is installed at the position, close to an inlet, of the confluence oil way; a piece shaft is fixed to the center of the flow measuring piece and rotatably installed in the confluence oil way, the left end of the flow measuring piece is close to the left side of the confluence oil way, the right end of the flow measuring piece is close to the right side of the confluence oil way, and oil from the left self-checking oil way and the right self-checking oil way can impact the left end and the right end of the flow measuring piece respectively so that the flow measuring piece can rotate. A pointer is arranged in the dial gauge, the root of the pointer is fixedly connected with the sheet shaft, and when the sheet shaft rotates, the pointer can be driven to rotate. Whether the oil outlets in the two sides are balanced or not can be detected in situ, and the time cost and the detection cost for troubleshooting the fault of the shunt are greatly reduced.

The invention relates to the technical field of aero-engines, and particularly provides a variable cycle engine duct experiment system and experiment method. A variable cycle engine duct experiment system comprises: a first combined experiment member comprising a main flow valve and a shunt ring; the second combined experiment piece comprises a first outer culvert, a second outer culvert and an ejector; the inlet of the variable capacitor second external culvert experiment piece is connected with the external culvert outlet of the shunt ring, and the outlet is connected with the second external culvert; an inlet of the first gas collection tank is communicated with an inner culvert outlet of the shunting ring; the bypass ratio adjusting valve is used for adjusting the bypass ratio at the shunting ring; an inlet of the second gas collection tank is connected with an outlet of the first gas collection tank through an inner culvert pressurization simulator, and an outlet is communicated with the first outer culvert; an inlet of the variable capacitor confluence duct experiment piece is communicated with the second outer duct; and the outer culvert throttle valve is connected with an outlet of the variable capacitor confluence culvert experiment piece. According to the technical scheme, engine duct experiments in multiple modes can be achieved, and the experiment efficiency is improved.

The invention discloses a forming and cooling device for a spiral steel pipe, and relates to the technical field of spiral steel pipe formation.The forming and cooling device for the spiral steel pipe comprises a cart, a liquid mixer, a water pump and two long straight pipes, and a water heater and a cold water tank are fixedly installed on the cart; a water inlet of the water pump is communicated with a water outlet pipe in the liquid mixer through a guide pipe, and the two long straight pipes are communicated with a water outlet of the water pump through a flow divider. Cooling can be started in time according to the actual temperature of the spiral steel pipe, the cooling speed can be controlled by adjusting the water flow and the temperature, compared with natural cooling, the cooling time is greatly shortened, and therefore the production efficiency of the spiral steel pipe is improved; the temperature of cooling water can be accurately controlled between 20 DEG C and 40 DEG C, the situation that the quality and performance of the spiral steel pipe are affected due to the fact that the water temperature is too low or too high is avoided, and the welding quality and the forming effect are guaranteed.

The invention relates to the technical field of welding devices, and particularly discloses balance oil cylinder welding equipment and a welding process thereof.The balance oil cylinder welding equipment comprises a power system, a welding gun, a wire feeding system, a gas protection system and a cooling system.The welding gun comprises a gun body, a diverter, a conductive sleeve and a nozzle, the conductive sleeve comprises a pipe body, and a through hole penetrating front and back is formed in the pipe body; a threaded section connected with the flow divider is arranged at the tail end of the pipe body, and a plurality of mounting grooves communicated with the through hole are formed in the circumferential surface of the pipe body; the conductive blocks are matched with the mounting grooves in shape, so that the conductive blocks can slide in the radial direction of the pipe body and make contact with the welding wires, the outer sides of the conductive blocks protrude out of the pipe body, pressure is continuously applied through the fastening wires, tight contact between the conductive blocks and the welding wires is kept, poor contact of the welding wires in the abrasion process is avoided, and the service life of the welding wires is prolonged. Therefore, the stability and the quality of the welding process are ensured.

The invention provides a PID control method and device based on variable shunting and an air conditioner, and is applied to the field of air conditioner control. The method comprises the steps that in the operation process of the air conditioner, whether the current environment temperature meets the limiting temperature condition or not is judged; under the condition that the current environment temperature meets the limiting temperature condition, the target control strategy is executed circularly till the current environment temperature reaches the set temperature; the target control strategy comprises at least one of the following items: performing PID control on the operation frequency of the compressor and the valve opening of the throttle valve, changing the flow dividing mode of the flow divider, and performing PID control on the rotating speed of the fan. According to the PID control method and device based on variable shunting and the air conditioner, through the mode of combining variable shunting and PID control, the air conditioner can maintain the indoor environment temperature within the temperature range set by the user under the severe working conditions of ultra-high temperature and ultra-low temperature.

The utility model relates to the technical field of glass fiber felt production, in particular to a uniform laying device for glass fiber felt production, which comprises a base, a wire drawing machine is arranged at the top of the base, a fiber discharge port is arranged at the bottom of the wire drawing machine, and an agent spraying component is arranged at the top of the base and positioned on one side of the wire drawing machine. A shaping assembly is arranged at the position, located on one side of the agent spraying assembly, of the top of the base, an adhesive in a storage box is sucked into a connecting pipe through a water pump and reaches a flow divider through the connecting pipe, and then the adhesive is evenly sprayed to glass fibers through a plurality of spraying heads at the bottom of the flow divider; the adhesive in the storage box is stirred through the stirring mechanism, so that the adhesive is fully mixed, the adhesive is prevented from sinking to the bottom, manual spraying is not needed, the cohesiveness of fibers cannot be affected, meanwhile, the labor intensity of workers is reduced, and the working efficiency is improved.

The invention relates to the technical field of ocean engineering, and discloses a cabin cleaning device based on a stainless steel chemical tanker. The high-pressure water pipe is arranged on the robot main body; the two-way pipe is rotationally arranged at the end part of the high-pressure water pipe; the connecting pipe is detachably mounted with the two-way pipe, one end, close to the two-way pipe, of the connecting pipe is a water inlet end, and the other end of the connecting pipe is a water outlet end; the front end spray head is arranged at the water outlet end of the connecting pipe, the centrifugal jet flow assembly is arranged on the connecting pipe, the centrifugal jet flow assembly comprises a flow divider fixed to the water outlet end of the connecting pipe and a flow dividing channel formed in the flow divider, the flow divider is fixed to the front end spray head, and multiple sets of circulation openings are formed in the front end spray head in the circumferential direction. The centrifugal jet flow assembly and the driving mechanism are arranged, the impeller is driven to rotate through kinetic energy of water flow, then the adjusting disc is driven to be switched to the centrifugal jet flow mode, and efficient stripping of stubborn stains is achieved.

The invention discloses a design method and application of a multi-stage centrifugal pump transition runner splitter plate. Relates to the design improvement of the transition runner splitter plate structure of the multi-stage middle-open centrifugal pump. By improving the structure of the transition flow channel, the hydraulic loss in the transition flow channel is reduced, the working efficiency is improved, and the purpose of saving energy is achieved. The method comprises the following steps that S1, a mathematical model of the deviation angle of the transition flow channel splitter plate is established, S2, numerical simulation verification of the multi-stage centrifugal pump is conducted according to the mathematical model, and S3, a target model is found according to the numerical simulation verification result. According to the design method, the hydraulic characteristics of the multi-stage centrifugal pump in actual operation are analyzed, the arrangement rule of the longitudinal splitter plates is creatively revealed, and a better solution of a target model is obtained on the basis of a nonlinear rule. According to the method, r / R and alpha serve as interactive variables, and the comprehensive influence of r / R and alpha on lift and efficiency is researched through numerical simulation. The limitation of a single parameter in a traditional design is broken through, and a new thought and technical means are provided for improving the performance of the multi-stage pump.

The invention discloses a device for reinforcing a seabed coral sand and reef limestone foundation, which comprises a vacuum pump and grouting machine connecting device fixedly connected to the input end of a main conveying pipeline; the output end of the main conveying pipeline is connected to a technical device at the top of the hollow steel pipe cage through a sealing joint; a novel anti-pulling anchoring device is integrated on a bottom base of the hollow steel tube cage and is formed by coaxially sleeving a hollow pressure-bearing steel tube with a telescopic supporting assembly; radial slurry outlet holes and guide sliding grooves which are distributed at equal intervals are axially formed in the pipe wall of the hollow pressure-bearing steel pipe; the outer surface of the hollow steel tube cage is coated with the magnetic conductive enhanced grid in a concentric circle structure; the composite grouting guide pipe is connected with a grouting opening in the bottom end of the hollow steel pipe cage through a rotary connector and connected to an auxiliary grouting pipeline driven by a double-liquid synchronous grouting machine through a flow divider. The distributed monitoring system, the special magnetic slurry, the microorganism slurry and the ultrasonic resonance generator are integrated in the device. The bearing capacity and stability of the seabed coral sand and reef limestone foundation can be improved.

The invention discloses a supercharged SOFC / GT combined cycle system and a starting method, and relates to an SOFC / GT combined cycle system and a starting method. The invention aims to solve the problem that the requirements of short starting time and high energy utilization rate cannot be met in the prior art. The system comprises a gas compressor, the gas compressor is coaxially connected with a turbine and a permanent magnet synchronous motor, an outlet of the gas compressor is connected with an inlet of a first flow divider, one outlet of the first flow divider is connected with a first battery assembly, and the other outlet of the first flow divider is connected with an inlet of a second flow divider; one outlet of the second shunt is connected with a heat exchanger assembly, the other outlet of the second shunt is connected with a combustion chamber, an outlet of the combustion chamber is connected with a turbine, an outlet of the turbine is connected with a heat exchange assembly, the heat exchange assembly is connected with the combustion chamber, the permanent magnet synchronous motor is connected with a power grid bus, and the power grid bus is connected with a second battery assembly. The first battery assembly is connected with the power grid bus. The invention belongs to the technical field of energy power equipment.

Methods and systems of operating a gas turbine engine in a low-power condition are provided. In one embodiment, the method includes supplying fuel to a combustor by supplying fuel to a first fuel manifold and a second fuel manifold of the gas turbine engine. The method also includes, while supplying fuel to the combustor by supplying fuel to the first fuel manifold: stopping supplying fuel to the second fuel manifold; and supplying pressurized air to the second fuel manifold to flush fuel in the second fuel manifold into the combustor and hinder coking in the second fuel manifold and associated fuel nozzles.

A rapid assembly and automatic sampling drilling tool for frozen soil layer exploration includes a fixed flow divider, a flow guide pipe, a coring pipe and a drill bit. The fixed flow divider is connected to the drill bit through the flow guide pipe and the coring pipe mounted between the fixed flow divider and the drill bit. Two ends of the flow guide pipe communicate with the fixed flow divider and a main flow channel in the drill bit respectively. Hot water in the fixed flow divider can be conveyed into the drill bit through the flow guide pipe and sprayed from a nozzle arranged on the drill bit for drilling and coring operations. An inlet of the coring pipe communicates with a coring channel in an inner cavity in the drill bit, and a core sample drilled by the drill bit is taken out through the coring pipe.

The invention discloses a limited micro-space multifunctional piling machine, and belongs to the technical field of piling machines. The limited micro-space multifunctional pile machine comprises a main machine assembly, a drilling rig assembly, a power head assembly, a multi-channel telescopic drill rod and a process drill bit, and the power head assembly comprises a box body, a telescopic driving hydraulic motor, a drill rod driving hydraulic motor, a multi-channel flow divider, a drill rod rotating joint and a screw driving joint, and the telescopic driving hydraulic motor, the drill rod driving hydraulic motor, the multi-channel flow divider, the drill rod rotating joint and the screw driving joint are installed on the box body. The multi-channel telescopic drill rod is controlled to rotate and stretch through the dual-drive power head, so that the overall height of the pile machine can be effectively reduced, low-clearance pile foundation construction can be achieved, multiple fluid channels are constructed in the multi-channel telescopic drill rod, the telescopic drill rod can be matched with drill bits of various technologies, and the construction efficiency is improved. Various pile foundation construction technologies are completed on one pile machine, and the blank of a multifunctional pile machine is filled. In addition, due to the design that the multi-channel shunting power head is matched with the multi-channel telescopic drill rod, rod connecting operation can be reduced or not needed, construction complexity is reduced, and construction efficiency is improved.

Disclosed in the present invention are a flow divider and a Coriolis flowmeter, wherein the flow divider is of a cylindrical structure, N branch flow guide ports are formed in the cylinder bottom of the flow divider, and N is a positive integer not less than 2. The branch flow guide ports are non-circular. The total area of the N branch flow guide ports is S1, and the flow divider satisfies the following conditions: if the N non-circular branch flow guide ports are replaced with N circular branch flow guide ports, and the maximum total area of the N circular branch flow guide ports is S2, S1>S2. Compared with the prior art, the present invention can increase the integral cross sectional area of the N branch flow guide ports of the flow divider, and under the condition of certain pressure, the flow of the flow divider is greatly increased, and the pressure loss is greatly reduced.

The invention discloses a power grid cable connection auxiliary device which comprises an insulating shell, a connector is slidably connected to the top of the insulating shell, a fixing frame is fixedly connected to the top of the connector, a fixing ring is fixedly connected to the top of the fixing frame, a conductive base is fixedly connected to the interior of the insulating shell, and a sliding cylinder is fixedly connected to the front face of the conductive base. A gas guide rod is fixedly connected to the front face of the conductive seat, a conductive tube is fixedly connected to the interior of the sliding cylinder, a buffer head is slidably connected to the interior of the conductive tube, the top of the insulating shell communicates with a flow divider, a rod-shaped gas valve is slidably connected to the front face of the flow divider, and a gas valve connecting block is fixedly connected to the front face of the rod-shaped gas valve. According to the device, by means of the poor contact separating mechanism and the conductive effect maintaining mechanism, loosening of the cable connecting position is relieved, the loosened cable is automatically pushed away when contact is poor, and the safety of a line is improved.

The utility model discloses a double-cavity processing system, which comprises two processing cavities used for respectively carrying out process processing on substrates arranged in the processing cavities; the main gas inlet channel is connected with a process gas source, and the gas flow divider assembly is arranged on the main gas inlet channel and used for dividing one path of process gas into four paths of process gas flows and supplying the four paths of process gas flows into the two processing cavities respectively; and the flow adjusting control unit is used for controlling the gas flow divider assembly according to the substrate processing results of the two processing cavities so as to adjust the process gas flow entering the two processing cavities. According to the utility model, the process gas flow in the two processing cavities is adjusted, so that the difference of the etching rate between the two processing cavities is reduced.

The invention provides a deepwater semi-submersible drilling platform pressure control drilling MPD control system which comprises a platform rotary table face. A platform wellhead flow divider, a marine riser expansion joint, a marine riser tension ring, a marine riser rotation control pup joint, an MPD hydraulic control pup joint, an MPD marine riser annulus sealing device, a marine riser four-way joint, a drilling marine riser, an underwater blowout preventer set and a seabed underwater wellhead are sequentially connected to the platform rotary table face from top to bottom. The MPD hydraulic control pup joint is connected with a rotary control pup joint power unit through an umbilical cable I, an umbilical cable roller frame I and a cable hose, and the rotary control pup joint power unit is connected with a deepwater MPD electro-hydraulic control system main control station; the MPD marine riser annulus sealing device is connected with the annulus sealing device and the buffer manifold hydraulic power unit through an umbilical cable II, an umbilical cable roller frame II and a cable hose and is connected with the deepwater MPD electro-hydraulic control system master control station; the throttling hydraulic power unit is connected with the deepwater MPD electro-hydraulic control system master control station. According to the system, pressure regulation and control, equipment management and operation safety guarantee in the deepwater pressure-controlled drilling well are realized.

The utility model discloses SF6 gas decomposition product analysis equipment which comprises a first gas chamber, a second gas chamber, a first flow dividing device and a vacuum gas pump, a vacuum pump is used for vacuumizing to prevent foreign gas from interfering test data, and a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber; a first concentration sensor used for detecting gas concentration is arranged in the first gas chamber, a second concentration sensor used for detecting gas concentration is arranged in the second gas chamber, the first flow dividing device is arranged between the first gas chamber and the second gas chamber, the first flow dividing device comprises a first flow sensor and a first flow divider, and the first flow sensor is used for monitoring flow of flowing gas; the first flow divider is used for adjusting the flow of flowing gas; the SF6 gas decomposition product analysis equipment is provided with a gas inlet and a gas outlet, the gas inlet, the vacuum gas pump and the first gas chamber are connected through a three-way valve, the three-way valve is used for controlling and switching the first gas chamber to be communicated with the vacuum gas pump or the gas inlet, and the second gas chamber is communicated with the gas outlet.