110 results about "Paddle wheel" patented technology

The invention belongs to the technical field of evaporative crystallization equipment, and particularly discloses low-temperature evaporative crystallization equipment which comprises a crystallization kettle and a lubricating oil tank. A rotating shaft is arranged in the crystallization kettle, two ends of the crystallization kettle are respectively provided with a bearing chamber, a communicating hole is arranged between the crystallization kettle and the bearing chamber, a bearing for supporting the rotating shaft is arranged in the bearing chamber, and a sealing device or a sealing mechanism is arranged between the rotating shaft and the communicating hole. A lubricating oil pipeline is arranged between the lubricating oil tank and the bearing chamber, a pressure balance pipeline is arranged between the lubricating oil tank and the crystallization kettle, a plurality of paddle wheels are axially arranged on the rotating shaft at intervals, and each paddle wheel is provided with a plurality of paddles annularly distributed around the rotating shaft. A material scraping device is arranged between at least one pair of paddles of the adjacent paddle wheels, and a slag discharging opening is formed in the crystallization kettle. The problems that in the prior art, materials are prone to being discharged through the bearing chamber, and spiral propelling blades hinder material flowing are solved. The evaporation crystallization efficiency and the condensate scraping effect are remarkably improved, the gas-liquid separation efficiency is optimized, and meanwhile air pollution is reduced.

The utility model provides a stereo garage lifting device and a stereo garage formed thereof.The lifting device comprises a driving device, a transmission device, riding wheels, hollow chain wheels and chains, the riding wheels are arranged on a garage frame in a self-rotating mode, and the hollow chain wheels are arranged on the outer sides of all the riding wheels distributed in a circumferential mode in a supporting and sleeving mode; the chains are arranged on the corresponding hollow chain wheels in a sleeving mode, and the driving devices are arranged on the corresponding garage frames. The transmission device comprises a transmission shaft and transmission gears, the two ends of the transmission shaft are arranged on the garage frame through bearing seats and are in transmission connection with the driving device, and the transmission gears are arranged at the two ends of the transmission shaft and are in meshing transmission with the corresponding hollow chain wheels. The hollow chain wheel is adopted to replace a traditional solid gear to be combined with the shifting piece wheel (chain wheel), so that the weight of the chain wheel is reduced, the material cost is reduced, the inertia during starting and stopping is reduced, and the response speed and the control precision of a system are improved.

A human-powered watercraft. The watercraft comprises a floatation element, a frame, a seat, a paddle wheel, a compression channel, and a steering mechanism. The paddle wheel is driven by a set of pedals, operated by the rider. A chain and sprocket system connects the pedals to the paddle wheel. The compression channel increases thrust produced by the paddle wheel. The steering mechanism is controlled by a handlebar and implements a bow swivel float as a rudder. The watercraft optionally includes a pontoon gear.

A hydraulic continuous variable transmission is provided to connect a wind turbine and a generator. The hydraulic continuous variable transmission has a primary paddle wheel and a number of secondary paddle wheels for macro speed control. Also provided are pneumatic paddle wheels for micro speed control. A controller is included that measures AC electrical characterized output to load or line for speed control.

The utility model belongs to the technical field of cone crushers, and particularly relates to a cone crusher cooling water automatic pressure regulating circulating pump which comprises a machine box and a fixing plate, a pulley support is rotatably installed at the bottom of the fixing plate, a rotating shaft is rotatably installed in the pulley support, a pulley is fixedly installed outside the rotating shaft, and the pulley is fixedly installed on the machine box. A support is fixedly installed in the machine box, a motor is fixedly installed in the support, a controller is fixedly installed at the top of the motor, and four pulleys of a transmission shaft part are fixedly installed at the output end of the motor. The water inlet hole and the water conveying pipe are sealed through the paddle disc, cooling water in the water conveying pipe can enter the paddle disc to prevent leakage, and the cooling water can be centrifuged through the six paddles installed in the paddle disc in a rectangular array mode and then enters the water outlet pipe through the pump shell.

1. The name of this design product: Paddle-type ground wheel (Xinbang Nongteng). 2. Purpose of the product of this design: A machine used for agricultural sowing or fertilizing. Its main purpose is to provide power and demand to agricultural sowing and fertilizing machines such as seeders or fertilizer spreaders. Sowing or fertilizing, as well as the required amount of sowing or fertilizing, can be achieved through specific operations. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model relates to the technical field of anaerobic towers, and discloses an anaerobic tower for denitrification, which comprises an anaerobic tower body, the outer side of the anaerobic tower body is fixedly connected with a mounting box, the inside of the mounting box is fixedly connected with a first motor, and the output end above the first motor is fixedly connected with a rotating shaft. A first gear is fixedly connected to the outer surface of the circumference of the rotating shaft, one side of the first gear is in toothed connection with a second gear, the second gear is movably connected to the outer side of the anaerobic tower body in a sleeving mode, and a first bevel gear is fixedly connected to the lower portion of the second gear. According to the anaerobic tower for denitrification, the first stirring paddle wheel and the second stirring paddle wheel are arranged, so that sewage stirring is facilitated, the contact rate of sewage and microorganisms is increased, the working efficiency of equipment is improved, sludge deposited at the bottom of the anaerobic tower body is conveniently scraped through the arranged scraping plate, and the sludge removal efficiency is improved. The sludge is prevented from depositing in the anaerobic tower body to influence the efficiency.

The adjustable linear guide rail sliding table comprises a base, the two sides of the top of the base are each connected with a side plate, a driving motor is installed outside one side plate, a lead screw is installed at the output end of the driving motor, the other end of the lead screw is rotationally connected to the other side plate, and the lead screw is sleeved with a sliding block. According to the adjustable linear guide rail sliding table, through transmission of the chain and the chain wheel, the connecting shaft is driven to rotate at the same time, and then the paddle disc and the fan assembly rotate. The rotating action pushes the cooling liquid in the base to circularly flow in the water flow groove and the hollow limiting rod, and heat conduction of heat generated by the lead screw and the sliding block is achieved. The cooling liquid is matched with the hollow limiting rod for heat conduction to absorb heat on the sliding block and the lead screw and then is transferred to the cooling fins. Rotation of the fan assembly further promotes dissipation of heat on the heat dissipation fins.

1. The name of the design product: oxygenation machine (paddle wheel type). 2. The use of the design product: oxygenation equipment for oxygenating water bodies for aquaculture. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present invention provides a Enteromorpha cleaning ship for collecting, squeezing, drying and storing, comprising a navigation and collection mechanism, an Enteromorpha conveying mechanism, an Enteromorpha squeezing mechanism, a heating mechanism and a storage mechanism. The navigation and collection mechanism comprises a hull and a paddle wheel, the paddle wheel is arranged on the hull, the paddle wheel is driven to rotate by a first driving member, a plurality of comb-tooth scrapers symmetrically distributed in the center are arranged on the paddle wheel, the comb-tooth scrapers are used to roll up the Enteromorpha, and the Enteromorpha rolled up by the comb-tooth scrapers falls to the Enteromorpha conveying mechanism through gravity, the Enteromorpha conveying mechanism is arranged on the hull for conveying the Enteromorpha, the Enteromorpha squeezing mechanism is used to squeeze the Enteromorpha, the heating mechanism is used to heat and dry the Enteromorpha, and the storage bin is used to store the Enteromorpha. The present invention integrates the Enteromorpha collection, compression, drying and storage into one, and increases the compression and drying functions by combining the salvaging and navigation mechanisms, thereby simplifying the mechanism to a certain extent, improving the efficiency of salvaging the Enteromorpha, and facilitating storage and post-processing.

An ice maker with a double-layer ice receiving outlet comprises an ice outlet assembly, the ice outlet assembly comprises an upper ice outlet assembly and a lower ice outlet assembly, the upper ice outlet assembly is connected with a paddle wheel, the paddle wheel is connected with the lower ice outlet assembly, and the ice outlet assembly is provided with an ice outlet, a baffle and a pushing rod; in the ice receiving process of the ice maker, the ice receiving points with two heights are designed at the upper end and the lower end of the paddle wheel, so that users with different heights can receive the ice more conveniently, the crowd is expanded, the user experience is improved, and the traditional ice maker usually only can discharge ice in a single layer, so that the whole ice block must be waited to fall off when the ice is taken, and the time is shortened. The process is often slow and low in efficiency. According to the ice maker, ice blocks can be released from two different layers at the same time through the design of the double-layer ice receiving outlets, the ice outlet speed is remarkably increased, the occasion with urgent requirements for rapid ice supply is met, due to the structure of the ice maker, the contact area between the ice blocks and the interior of the ice maker is reduced in the making process, and the potential pollution risk is reduced.

Compressor, with an electric disc motor with the following features: a rotor (10) comprising a moving element (105) comprising a paddle wheel; a stator (20) arranged with respect to the rotor (10) such that a motor gap (30) is formed between the rotor (10) and the stator (20), wherein the electric disc motor is configured to convey a gas through the impeller from a source region (90) to a target region (100), wherein a target pressure in the target region (100) is higher than a source pressure in the source region (90), wherein the electric disc motor has a pressure reducer (140) for reducing a pressure acting on the rotor (10) due to the different pressures in the source region (90) and in the target region (100), wherein the pressure reducer (140) is designed such that a pressure in the motor gap (30) is less than the target pressure and greater than or equal to the source pressure, wherein the pressure reducer (140) has a first flow resistance (140a) between the target area (100) and the motor gap (30) and a second flow resistance (140b) between the motor gap (30) and the source area (90), wherein the first flow resistance (140a) is greater than the second flow resistance (140b), and wherein the second flow resistance (140b) of the pressure reducer (140) has a bore (200) in the moving element (105) to provide a passage for the gas from the motor gap (30) to the source area (90) through the rotor (10).

Disclosed in the present application is a triphibious reconfigurable robot, which comprises a reconfigurable mechanism, a configuration driving mechanism, and paddle wheels. The reconfigurable mechanism comprises eight links that are sequentially connected end to end to form a closed-loop structure. The configuration driving mechanism comprises four first driving elements, two of which are respectively connected to first rotating shafts, and the other two of which are respectively connected to second rotating shafts. Each first rotating shaft is connected to a paddle wheel. The triphibious reconfigurable robot has a first motion mode, a second motion mode, and a third motion mode. The configuration driving mechanism is capable of driving the reconfigurable mechanism to change configurations, such that the reconfigurable mechanism is switched to different postures and enables the robot to switch between different motion modes. The robot achieves mode switching by reconfiguration of the reconfigurable mechanism, thereby adapting to motion requirements in aquatic, terrestrial, and aerial environments.

The invention relates to the technical field of water surface cleaning, in particular to a water surface cleaning robot control method and a water surface cleaning robot thereof.The water surface cleaning robot control method comprises the following steps that 1, a water surface cleaning robot is arranged and comprises a sliding body, detection probes are arranged in the middle of the front side, the left side and the right side of the sliding body respectively, a camera is arranged in the middle of the front portion of the sliding body, a first paddle wheel for collecting garbage is arranged on the front portion of the sliding body, and a collecting basket in butt joint with the first paddle wheel is arranged in the middle of the sliding body. Second paddle wheels for driving the rear part to slide are respectively arranged on two sides of the rear part; regional surveying and mapping are achieved by walking along the edge of the pool by a circle, the square core area and the edge area are divided, the problem of repeated cleaning or missing sweeping caused by a fixed path of traditional equipment can be solved, the cleaning path better fits the actual shape of a water area, and the water surface cleaning robot can clean garbage on the surface of the pool more efficiently.

The present invention belongs to the field of metal organic framework materials, and specifically relates to a microporous material SDMOF-1, a preparation method thereof, and an application thereof. According to the difference in the sizes of C2H2 and C2H4 molecules, a microporous MOFs with a suitable size is designed to capture C2H2 molecules, thereby achieving the purpose of separating a mixture of C2H2 and C2H4 and purifying C2H4. The present invention selects H2bodc and bpy ligands and copper nitrate to construct a microporous material SDMOF-1 with a pore size of #imgabs0#. The Cu2(COO)4 paddle wheel secondary building unit is connected to four H2bodc ligands to form a twisted lattice-shaped two-dimensional layer. The bpy ligand coordinates with copper along the c-axis direction and supports each layer to form a complete three-dimensional structure. The pore size of the framework is very compatible with the size of the C2H2 molecule, but cannot accommodate the C2H4 molecule, thereby achieving a molecular sieving effect.

The utility model discloses an extraction tank for preparing methyl hesperidin. The extraction tank comprises an extraction tank, a fixed seat is arranged at the top of the extraction tank, a motor and a stirring shaft are arranged on the fixed seat, and one end of the stirring shaft penetrates through a bearing on the fixed seat and is connected with the motor; a paddle wheel and a stirring frame are arranged on the stirring shaft, the stirring frame is provided with lantern rings, transverse rods, vertical rods and stirring blades, the three lantern rings are sequentially arranged on the stirring shaft at intervals, each lantern ring is provided with two transverse rods which are symmetrically arranged, the two vertical rods are connected with the transverse rods on the two sides of the lantern ring respectively, and the stirring blades are fixed to the vertical rods. The paddle wheel at the tail end of the stirring shaft can push liquid to the bottom of the tank, the stirring blades facing the outer side on the vertical rods can stir the liquid outwards, the stirring blades facing the inner side on the vertical rods can stir the liquid outwards, the front end openings of the stirring blades are large, the rear end openings of the stirring blades are small, and the stirring effect is achieved through the flow velocity difference of the liquid at the two end openings. The liquid is stirred in multiple directions, so that the stirring efficiency is improved.

The invention relates to methods for limiting the braking power of a motor vehicle braking system with a hydrodynamic retarder having a working chamber arranged between two paddle wheels, which can be filled with a working medium or is filled to transfer drive power hydrodynamically from one paddle wheel to the other, thereby braking one paddle wheel and a drive shaft connected to one paddle wheel; with an external working fluid circuit connected to the working chamber via a working fluid inlet and a working fluid outlet, comprising an oil-water heat exchanger with which heat is transferred from the working fluid, which comprises oil, to a vehicle cooling circuit; wherein the braking power of the hydrodynamic retarder is reduced depending on a detected current temperature in the vehicle braking system. The method according to the invention is characterized in that the current temperature of the working medium is detected and, if the detected temperature of the working medium exceeds a predetermined constant working medium temperature limit, the current braking power of the retarder is reduced in such a way that the working medium temperature adjusts to the predetermined working medium temperature limit.

The utility model belongs to the field of low-temperature crystallization equipment, and particularly discloses a rotor device in a crystallization kettle. The rotor device in the crystallization kettle comprises a rotating shaft used for being installed in the crystallization kettle, a plurality of paddle wheels are arranged on the rotating shaft in the axial direction at intervals, each paddle wheel is provided with a plurality of paddles arranged around the rotating shaft, and a material scraping device used for scraping materials on the inner wall of the crystallization kettle is arranged between at least one pair of paddles of the adjacent paddle wheels. According to the utility model, the paddle wheel with the plurality of paddles is arranged on the rotating shaft, and the material scraping devices are arranged among the paddles, so that the mixing effect of materials in the kettle is improved, the removal effect of cured materials attached to the inner wall of the crystallization kettle is improved, and the cured materials can be smoothly output outwards; the rotor device in the crystallization kettle is applied to the crystallization kettle, so that the working efficiency of low-temperature crystallization equipment can be remarkably improved.

The utility model discloses a high -efficient water gate for water conservancy project in water conservancy project water gate field, including the gate frame, it provides the installation position for other components as the main body of device, the inside of gate frame is provided with the gate, lifting mechanism is used for opening the gate, the lifting mechanism includes the installation cavity, the inside of gate is opened in the installation cavity, the bottom of both sides of installation cavity is opened in the through slot, the inside slidingly connected of installation cavity has the baffle, the top middle part of baffle is opened in the thread groove. This high -efficient water gate for water conservancy project, through make first screw rod rotate, make the baffle rise, open the through slot, make the water flow impact on the rotating paddle wheel, drive the gate to rise, thereby avoid always using manpower to open the gate, utilize the impact of water flow to open the gate and assist, save physical strength, shorten the time of gate opening, save time and effort, improve the practicality of device.

The invention discloses a reservoir ecological restoration system which is composed of an ecological restoration device and a floating object intercepting device. The ecological restoration device comprises a device body, a self-priming pump is arranged in the device body, a shifting piece wheel is rotationally arranged at the upper end of the device body, a speed reducer connected with the shifting piece wheel is arranged in the device body, and the speed reducer is connected with a motor. A filter cartridge is fixedly arranged at the upper half part of the device main body, an inner cavity of the filter cartridge is communicated with the shifting piece wheel, and a water suction hopper is fixedly arranged below the filter cartridge; the shifting piece wheel comprises a baffle disc fixedly connected with the output shaft of the speed reducer, a cylinder fixedly connected with the baffle disc, a top plate fixedly connected with the cylinder, and a circle of shifting pieces which are fixedly connected to the peripheral surface of the cylinder and are arranged in an annular array; and a circle of triangular holes for water to pass through are formed in the middle of the baffle disc. The number of ecological restoration devices is reduced, the total energy consumption is reduced, and the restoration work range of the ecological restoration devices is reduced; the construction and operation cost is low, and the maintenance and management difficulty is small; floating object intercepting and catching are targeted, and the improvement effect is fast.

The utility model relates to the technical field of unmanned ships, and discloses a multifunctional integrated unmanned ship which comprises a ship body, paddle wheels are arranged on the two sides of a ship body of the ship body, a lifting table is fixedly connected to the upper side of a lifting mechanism, and a bearing table is slidably connected between the left side wall and the right side wall of the lifting table. And one end of the first rail groove penetrates through one side of the lifting table, a third rotating wheel is arranged in the first rail groove, a first motor is fixedly arranged on the side, close to the bearing table, of the third rotating wheel, a rack is fixedly connected to the lower side of the garbage basket, and the tooth end of the rack is connected with a driving mechanism in an engaged mode. The garbage basket is moved to the wharf through the power source, the pushing device, the paddle wheel, the lifting mechanism, the first motor, the third rotating wheel, the first rail groove, the bearing table, the lifting table, the garbage basket, the driving mechanism and the rack; the problems that the labor amount is very large and the ship unloading efficiency is very low due to the fact that a garbage basket stopped on the water is manually transferred to the shore are solved.

A dryer (1) comprises a paddle wheel (10) having several blades (11) and a heating apparatus (20) arranged on the inside of the several blades (11).

The multifunctional floater comprises a shell, an advancing mechanism and a steering mechanism, hollow mud pushers are fixed to the two sides of the shell, and a device cavity and a water pumping cavity are formed in the shell from bottom to top; the device is characterized in that the advancing mechanism is composed of an advancing motor, a driving shaft and two paddling wheels, the two paddling wheels are fixed to the two ends of the driving shaft, a small gear is fixed to an output shaft of the advancing motor, and a large gear meshed with the small gear is fixed to the driving shaft; the shell is provided with a water inlet and a water outlet which are communicated with the water pumping cavity, and a storage battery and a control panel are arranged in the device cavity. According to the multifunctional floating device, the whole floating device can freely advance in water or sludge, the driving direction is adjusted through the steering mechanism in the advancing process so that the whole floating device can be controlled to advance to the needed position, fixed-point water pumping operation can be conducted on a river containing the sludge, people do not need to go into the river, and the water pumping efficiency is improved.

The invention discloses a control strategy generation method and device of a lifting electromagnetic valve, a controller and a medium. The method is realized by a target programmable controller, is applied to a paddle wheel of a target cigarette making machine, and comprises the following steps: acquiring an initial electromagnetic valve output signal set corresponding to the target cigarette making machine subjected to gas path exchange treatment and a current working period, and determining a corresponding target working mechanism in a preset working mechanism set based on the current working period; performing flow judgment on the initial electromagnetic valve output signal set based on a target working mechanism, and determining a corresponding basic working flow; and performing control conversion on the initial electromagnetic valve output signal set based on the basic working process and a preset conversion rule to obtain a target control strategy corresponding to the target cigarette making machine. According to the technical scheme, the single-time continuous electricity obtaining time of the paddle wheel electromagnetic valve can be greatly shortened, the service life of the paddle wheel electromagnetic valve is greatly prolonged, the replacement frequency of the paddle wheel electromagnetic valve is reduced, and the production efficiency is improved.

The invention discloses a reconfigurable maritime search and rescue reconnaissance robot. The reconfigurable maritime search and rescue reconnaissance robot comprises a robot body, a reconfigurable mechanism and a rotor wing-paddle wheel integrated module. A reconfigurable mechanism support is obliquely arranged at the tail end of a supporting foot of the robot body, the reconfigurable mechanism is arranged in the reconfigurable mechanism support, and a support end cover of a spherical structure is arranged on the reconfigurable mechanism support. Each reconfigurable mechanism is connected with a rotor wing-paddle wheel integrated module; when the reconfigurable mechanism rotates, the rotor wing-paddle wheel integrated module is driven to rotate by 360 degrees on the support end cover, meanwhile, the rotor wing-paddle wheel integrated module does shearing motion around the support end cover, and reconfiguration of the motion mode of the robot is achieved. The shape of the robot can be changed, the motion mode of the robot can be reconstructed, and therefore the problems that an existing maritime search and rescue technology is low in efficiency, poor in stability and the like are solved, and particularly the situation that in a maritime emergency accident, due to goods or building falling, a rescue ship may not enter a disaster site is avoided.

The invention discloses a dust collection device for ceramic machining, and relates to the technical field of dust collection equipment, the dust collection device comprises an outer box, a machining table and a dust collection box are fixedly arranged on the outer box, the dust collection box communicates with the outer box, an adjusting frame is fixedly arranged on the outer box, and a dust collection head is slidably arranged in the adjusting frame; a locking assembly used for limiting the dust collection head on the adjusting frame is arranged between the dust collection head and the adjusting frame, a dust collection hose is fixedly arranged between the dust collection head and the dust collection box, a fan body is arranged in the dust collection head, a collection box is arranged in the outer box, and the dust collection hose is connected with the fan body. A paddle wheel carrying pipe is arranged above the collecting box, the paddle wheel carrying pipe is rotationally arranged in the outer box, a paddle wheel is fixedly arranged on the paddle wheel carrying pipe, and a locking piece used for locking the paddle wheel is arranged on the side edge of the outer box. And the dust collection effect and the flexibility of the device are influenced.

The invention relates to the technical field of stirring devices and beverage dispensers, in particular to a stirring paddle capable of controlling foam and quickly mixing, and solves the problems that an existing stirring paddle is low in mixing efficiency and the amount of foam cannot be inhibited when a large amount of foam is generated by a mixture. The stirring paddle is provided with a paddle shaft and a paddle wheel which is coaxially mounted on the paddle shaft and rotates along with the paddle shaft, and the paddle wheel is provided with a disc-shaped wheel disc; the disc-shaped wheel disc is provided with two parallel end faces, a plurality of protruding wheel blades are evenly distributed on one end face of the wheel disc in the circumferential direction, overflowing holes are evenly distributed in the wheel disc in the circumferential direction and located between every two adjacent wheel blades, and each protruding wheel blade is provided with a top face parallel to the end face of the wheel disc, a front side face and a rear side face, the wheel blades are radially distributed on the end face of the wheel disc, the length direction of the wheel blades is consistent with the radial direction of the wheel disc, and the front side faces and the rear side faces of the wheel blades are planes.

The utility model discloses an efficient bonding machine which comprises a bonding module, the bonding module comprises a mixing drum, a heater and a plurality of stirrers, the stirrers are arranged in an inner cavity of the mixing drum, the heater heats materials in the mixing drum, the inner cavity is composed of two cylindrical cavities which intersect with each other, and the axes of the cylindrical cavities are parallel. The stirrer comprises two paddle wheel assemblies which are arranged in one-to-one correspondence with the two cylindrical cavities, the axes of rotating shafts of the paddle wheel assemblies and the axes of the cylindrical cavities are collinear, the paddle wheel assemblies are close to the cavity wall of the inner cavity, and materials on the cavity wall of the inner cavity are scraped off when the paddle wheel assemblies rotate. In the field of bonding modification, the problem that in the prior art, due to the fact that the distance between the upper portion of the shape of an inner cavity of a stirring barrel and a paddle wheel is very large, accumulated materials are prone to being accumulated, and the bonding effect is extremely poor is solved, the inner cavity is composed of the two cylindrical cavities which intersect and are parallel in axis, the accumulated materials are greatly reduced, it can be guaranteed that bonded products are uniform, and the production efficiency is greatly improved; and the production cost is reduced.

A flowmeter system including a flowmeter having a body defining a flow channel and a recess. A paddle wheel is positioned in the recess and is rotatable in response to gas flow through the channel. An optical source provides a light beam on an input cable that crosses the recess and is received by an output cable. A light detector receives the light beam from the output cable. The light beam is intermittently interrupted by the paddle wheel as the paddle wheel rotates so that the light beam on the output cable is a pulsed light beam. Processing electronics converts the pulsed light beam to a rotational speed of the paddle wheel that is then converted to a gas flow rate through the flow channel. The flowmeter is positioned in the hazardous environment of a painting robot and the processing electronics is positioned outside of the hazardous environment.