41results about How to "Flow rate limiting" patented technology

The invention discloses a device for noninvasively detecting the level of carbon dioxide in human blood. The device comprises a blowing nozzle, a prolonged expiration induction device for a user to conveniently expire, an infrared adapter window body, a signal detection processing device and a terminal, wherein the prolonged expiration induction device is used for providing expiration positive pressure, limiting flow velocity and inducing the continuous prolonged expiration of expired gas; the infrared adapter window body is used for a detection gas chamber of the expired gas, and detection infrared rays pass through the infrared adapter window body; the signal detection processing device is used for emitting the detection infrared rays to the infrared adapter window body, and detecting the CO2 partial pressure of the expired gas; the terminal is used for receiving, processing and displaying the data of the signal detection processing device. According to the device, the prolonged expiration induction device can be used for providing expiration positive pressure and limiting the flow velocity, so that a patient can be helped to conveniently prolong the expiration time and improve expiration effects; with the use of the prolonged expiration induction device, the flow velocity and pressure of the expired gas are regular, the measurement standardization degree of a testee (patient) is favorably improved, and the consistency of a measurement result is ensured.

The embodiment of the invention provides an electrometric handcart tool, which comprises a hydraulic power device, a mounting bracket and a pushing device, wherein the hydraulic power device is fixed on the mounting bracket; the two sides of the front end of the mounting bracket are provided with two horizontally extended slot hoes with different heights respectively; the pushing device is arranged in the mounting bracket; the two sides of the front end of the pushing device are provided with two pushing pins with the different heights respectively; the two pushing pins on each side of the front end of the pushing device pass through the two slot holes on the same side of the front end of the mounting bracket from the inner side of the mounting bracket respectively; the power output end of the hydraulic power device is fixedly connected with the rear end of the pushing device, so that the power output end drives the pushing pins of the pushing device to move to and fro in the slot holes of the mounting bracket; and the throttling valves are arranged in a discharge oil line and a return oil line.

The invention relates to the technical field of air flow velocity detection, in particular to a capacity detection device for air flow velocities and a detection method thereof. The capacity detectiondevice for air flow velocities is characterized by comprising a flow velocity detection box, an air leakage detection box, a flow limiting device and a filter device for filtering large particles inthe air, wherein the flow velocity detection box is arranged in the inner cavity of the air leakage detection box and an air storage cavity is formed between the flow velocity detection box and the air leakage detection box; an air inlet of the flow velocity detection box is communicated with an air outlet of the flow limiting device; an air outlet of the flow velocity detection box penetrates through the side wall of the air leakage detection box and extends outwards to form a detection port; and an air inlet of the flow limiting device is communicated with the filter device through an obstruction pipeline. The capacity detection device is strong in innovativeness and practicability, and is capable of effectively detecting the air velocities at air inlets of air compressors so as to improve the production quality of the air compressors.

The invention relates to a brushing device, in particular to a waterproof coating brushing device. The technical problem to be solved by the invention is how to provide the waterproof coating brushingdevice capable of preventing coating from flowing too fast and preventing the coating from being wasted. In order to achieve the technical problem, the waterproof coating brushing device comprises avehicle frame, main wheels are rotationally connected to the two sides of the vehicle frame, universal wheels are connected to the bottom of the vehicle frame, a storage structure is installed on theupper portion of the vehicle frame, a push rod is connected to the top of the vehicle frame, a feeding structure is installed on the inner wall of the vehicle frame, and a feeding part of the feedingstructure is connected with a storage part of the storage structure. A hose of the waterproof coating brushing device can limit the flow speed of the coating and prevent the coating from flowing too fast, then coating waste can be prevented, and a brush rotates on the ground and moves backwards so that the coating can be evenly brushed on the ground; and a barrel cover can be fixed through an adjusting nut, the barrel cover is prevented from falling off when the barrel body topples over, and therefore the coating is prevented from overflowing.

The invention discloses a device and system for electroplating thin sheets. The device comprises an electroplating tank, flow-guiding devices and a first circulating device, wherein the electroplating tank is provided with a backflow channel, a conveying device for conveying electroplated thin sheets is arranged above the backflow channel; the flow-guiding devices are slantwise arranged at both sides of the electroplated thin sheets and located at the position higher than the uppermost ends of the electroplated thin sheets; electroplating metal liquid from an anode device space flows along the surface of the flow-guiding devices to the backflow channel in the electroplating tank at an uniform thickness from flow-guiding inlets; the liquid suction opening of the first circulating device is communicated with the backflow channel and the liquid discharging opening of the first circulating device is communicated with the anode device space. By virtue of the device for electroplating thin sheets disclosed by the invention, the uniform electroplating thickness of the electroplated thin sheets can be ensured, the quality of the electroplating is improved, the labor cost is saved and the production efficiency is improved.

The invention belongs to the technical field of an absorption reaction device, and particularly discloses a falling-film reactor. The falling-film reactor comprises a reactor shell, wherein the upperside wall of the reactor shell is provided with a liquid inlet, an upper pipe plate and a lower pipe plate are fixed in the reactor shell, the upper pipe plate is located on the upper part of the reactor shell and located below the liquid inlet, and the lower pipe plate is located on the lower part of the reactor shell; the upper pipe plate is provided with a liquid distribution drum, and a plurality of flow guide pipes are arranged between the upper pipe plate and the lower pipe plate in a penetrating manner; the lower side wall of the liquid distribution drum is provided with a plurality ofthrough holes, and the top side wall of the liquid distribution drum is provided with a plurality of sawtooth-shaped grooves; an overflow plate located in the liquid distribution drum is arranged above the upper pipe plate, a flow passage is formed between the liquid distribution drum and the overflow plate, the flow guide pipe is located in the overflow plate, the top of the overflow plate is located above the liquid distribution drum, and the height of the bottom of the overflow plate is lower than the height of the upper part of the flow guide pipe; and a falling film apparatus is arrangedin the upper part of the flow guide pipe. By utilizing the falling film reactor of the invention, uniformity in film falling can be realized, and the dry pipe phenomenon can be effectively avoided.

The invention discloses a wound-rotor colored spun yarn dyeing and twisting integrated mould head. The mould head comprises a main body, a yarn inlet and a yarn outlet are formed in the two ends of the main body respectively, a cavity is formed in the interior of the main body, a first dyeing roll set, a second dyeing roll set and a third dyeing roll set are arranged in the cavity, the first dyeing roll set, the second dyeing roll set and the third dyeing roll set comprise upper and lower two sets of dyeing rolls respectively, the two ends of the dyeing roll are arranged movably on the inner part of the main body through a bearing, coating layers are arranged fixedly above the first dyeing roll set, the second dyeing roll set and the third dyeing roll set, three sets of coating layers are arranged in the positions corresponding to the first dyeing roll set, the second dyeing roll set and the third dyeing roll set, and dyeing inlets are formed in the tops of the coating layers on the main body. According to the wound-rotor colored spun yarn dyeing and twisting integrated mould head, the flow rate of the dyes can be limited, too much or too little dyes on the yarn are prevented, the effect of saving dyeing materials is achieved, and the dyeing effect of the yarn is improved.

The invention relates to an electric spark deposition contact force controlling device with a damping function. The electric spark deposition contact force controlling device with the damping functionmainly comprises an air cylinder, a sliding table, a base, a weight, a clamping mechanism, an angle adjusting device, a throttle valve, a pressure gauge, an inflating valve and the like, wherein themoving direction of a piston of the air cylinder is consistent with the moving direction of the sliding table, and the sliding table moves when the piston moves, so that an electrode is driven to moveup and down, and when the electrode moves downwards, the electrode makes contact with a workpiece. The gravity of a sliding part is counteracted by using thrust generated by the air cylinder in an airtight pneumatic system, the sliding part is pushed by the gravity of the weight to move downwards to form contact force between the electrode and the workpiece, the throttle valve in the airtight pneumatic system generates damping on movement of the piston, electrode vibration caused by recoil force generated in a moving process of the electrode and the workpiece is restrained, in an electric spark deposition surfacing process, stable contact between the electrode and the workpiece and constant contact force can be ensured along with electrode loss and movement of the sliding table, work is reliable, and adjustment is convenient.

The invention discloses a reaming groove for a wet black silicon machine and a reaming method of the reaming groove. The reaming groove comprises a main groove, an auxiliary groove, a cold-heat exchanger and a liquid guide tube for forming a liquid flow circuit; design of the main groove and the auxiliary groove is mainly used for releasing certain heat after reaction of a silicon wafer is completed, so that overflowing liquid medicine is effectively cooled through the design of capillary tubes in the auxiliary groove; meanwhile, the cold-heat exchanger is also arranged, so that secondary cooling for the liquid medicine is achieved and the preparation quality of black silicon is effectively ensured; and the liquid medicine overflows into the auxiliary groove from the main groove, and meanwhile, the liquid medicine is conveyed through liquid inlet pipes in which a plurality of liquid outlet holes are distributed, so that the uniformity of a chemical solution is ensured to the maximum extent.

The invention belongs to the technical field of externally-hung wallboards, and particularly relates to an externally-hung wallboard production transmission platform for green building design. A motor is fixedly connected to the interior of the machine body; the output end of the motor is fixedly connected with a first belt wheel. The interior of the machine body is rotationally connected with a rotating rod; a second belt wheel is fixedly connected to the middle of the rotating rod. The second belt wheel and the first belt wheel are connected with a conveying belt. The side end of the rotating rod is fixedly connected with a conveying roller; a damping layer is fixedly connected to the conveying rollers; limiting rods are fixedly connected into the conveying rollers. The influence of vibration on the conveying roller can be reduced through the elasticity of the damping layer, the damping rod is downwards pressed by the gravity of the wall plate, so that the pushing and pressing block is downwards pressed and slides, sliding of the pushing and pressing block can be buffered through cooperation of the first elastic piece and the second elastic piece, loss of vibration on the conveying roller can be reduced through cooperation of the damping layer, and therefore the service life of the conveying roller is guaranteed.

The invention relates to the technical field of fertilizer boxes, and particularly discloses an embedded fertilizer box for melia azedarach. The fertilizer box comprises a buried box, an extension rodand a water injector, wherein the inside of the buried box is of a hollow structure; a water leakage groove is formed in the right side of the buried box and close to the center of the bottom; groundinsertion needles are uniformly and fixedly connected to the bottom of the buried box; a first connecting column is fixedly connected to the center of the top of the buried box, and is of a hollow structure; a butting column is fixedly connected to the center of the bottom of the extension column, and is movably inserted into the center of the first connecting column; an insertion column is fixedly connected to the center of the bottom of the water injector and is movably inserted into the second connection column. Fertilizer can directly reach the inside of soil, roots of the melia azedarachcan absorb the fertilizer conveniently, the utilization rate of the fertilizer is increased, a traditional fertilization manner is replaced, and fertilization efficiency is improved.

The invention provides an unloading fluid control device after gas well CO2 fracturing. The device comprises a solid-gas-liquid separator, one end of the solid-gas-liquid separator is connected with a gas well, the lower end of the solid-gas-liquid separator is connected with a collector separating solid and liquid. The air outlet of the solid-gas-liquid separator is connected with a compressor. The other end of the compressor is connected with the inlet of a first-stage separating membrane assembly, and the air outlet on other end of the first-stage separating membrane assembly is connected with a gas outlet. A second-stage separating membrane assembly A is arranged between the first-stage separating membrane assembly and the gas outlet. The air outlet on the lower end of the first-stage separating membrane assembly is also connected with a second-stage separating membrane assembly B. The right end air outlet of the second-stage separating membrane assembly B is connected with the air inlet of the second-stage separating membrane assembly A. Through manifold depressurization and a sand-gas-liquid three-phase separator, the device performs sand strip and dewatering treatment on return unloading fluid, and then through three separating membrane assemblies, CO2 and natural gas (CH4) are separated, so as to achieve objectives of realizing CO2 recycling and comprehensive utilization while reducing CO2 emission.

The invention discloses a waste gas treatment device with a deodorization function, and relates to the technical field of waste gas treatment, in particular to the waste gas treatment device with the deodorization function, the waste gas treatment device comprises a deodorization box, a fixing frame is fixedly mounted in an inner cavity of the deodorization box, and a supporting spring is fixedly connected to the inner side of the fixing frame; clamping sleeves are fixedly connected to the inner sides of the supporting springs, and bamboo charcoal plates are arranged on the inner sides of the two clamping sleeves. According to the waste gas treatment device with the deodorization function, a deodorization box is connected to the left end of a second gas supply pipe, four fixing frames are fixedly arranged in the deodorization box in a sleeving manner, a clamping sleeve is connected between the two fixing frames through a supporting spring, and meanwhile, a bamboo charcoal plate is inserted between the two clamping sleeves during use, so that the bamboo charcoal plate can conveniently pass through the clamping sleeves; the two bamboo charcoal plates adsorb peculiar smell in gas entering the spray tower, and the gas is deodorized, so that the discharged gas is prevented from influencing the living environment of surrounding residents.

The invention discloses an anti-splashing electric ball valve with long service life. The anti-splashing electric ball valve with long service life comprises a valve casing body, wherein a valve ball is arranged in a valve body inner cavity of the valve casing body; a rod body of a valve core rotating rod comprises a lower end head and an upper end head; the lower end head and the valve ball are integrated and fixedly arranged; the top of the upper end head passes through the top side wall of the valve casing body; a buffer ring gasket is arranged at a position between the lower end head of the valve core rotating rod and the valve casing body; the cross section of the buffer ring gasket is ring-shaped; a hollow ball is arranged in the inner cavity of a water discharging end; an inclined side plate surface is formed below an anti-skip shift bulge and corresponds to the bottom end surface of the valve casing body; and a ball body limiting point of the hollow ball is formed between the inclined side plate surface and the anti-skip shift bulge. The anti-splashing electric ball valve with long service life has the beneficial effects that the good sealing property and the shock absorption buffering effect can be realized in the rotating process of the whole valve core rotating rod; the manual adjustment is not needed; and a splashing phenomenon caused by excessive water flow is avoided very well.