54results about How to "Accurate injection volume" patented technology

The invention discloses a method for controlling urea injecting quantity. The method comprises the following steps of: determining the concentration of a current urea solution; comparing the concentration of the current urea solution and the concentration of a standard urea solution to obtain a correction coefficient; calculating corrected urea injecting quantity according to the correction coefficient and current urea demand quantity; and controlling a urea injection system to inject urea according to the corrected urea injecting quantity. The invention provides a method and a system for controlling urea injecting quantity to solve the problem that an aqueous solution of urea does not reach a standard to cause inaccurate urea injecting quantity.

The invention provides a device for the vacuum-pumping injection of a micro-thermal tube, which is formed by a vacuum-pumping portion, a micro-liquid calibration portion and an injection portion, wherein the vacuum-pumping portion is formed by a vacuum pump and a capillary flexible pipe, one end of the capillary flexible pipe is connected with the vacuum pump, and the other end is sealed with the injection hole of the micro-thermal tube through an injection needle, the micro-liquid calibration portion is formed by a capillary flexible pipe and a mini-size pliers which is used to clamp the flexible pipe to block liquid or gas in the pipe, and the injection amount is calibrated through the length of the capillary flexible pipe, and the injection portion is formed by a capillary flexible pipe, an injection needle and a syringe, wherein liquid is injected into the capillary flexible pipe through the syringe and the injection needle, the injection needle is penetrated into the capillary flexible pipe through the injection hole, and the three portion commonly share the same capillary flexible pipe and the same injection hole, and therefore the three portions are combined by the capillary flexible pipe to connect with a to-be-injected micro-thermal tube. The device of the invention has the advantages of simple structure, smart design, and high injection amount control precision, high vacuum-pumping precision and convenient and reliable operation.

The invention relates to a method for measuring a residual solvent in a tetracycline hydrochloride bulk drug by utilizing headspace gas chromatography. The method comprises the following steps of: preparing tetracycline hydrochloride into a solution and placing the solution into a headspace bottle; heating the solution, and volatilizing a volatile organic solvent from the solution; after balance is achieved, taking a gas at the upper part in the headspace bottle, and injecting the gas into a gas chromatograph for separation and measurement. The method for measuring the residual solvent in the tetracycline hydrochloride bulk drug by utilizing headspace gas chromatography can prevent solid tetracycline hydrochloride from remaining at an injection port of a gas chromatographic column, the chromatographic column can not be affected, thus the service life of the chromatographic column is prolonged, also the interference factors are less, the measured result is accurate, and the detection limit is high because of great sample size.

The invention relates to an automatic weighing vacuum liquid injection system for a power battery, and a liquid injection method of the power battery; the automatic weighing vacuum liquid injection system is characterized by comprising a liquid storage and inlet module (1), a weighing module (2), a liquid injection module (3) and a control module; and electrolyte enters into the weighing module (2) through the liquid storage and inlet module (1) under the action of positive and negative pressure difference, and then is weighted by the weighing module (2), and injected into a battery cell (34) through the liquid injection module (3). The liquid injection module (3) comprises a liquid injection buffer device (33), so that no electrolyte is lost in the whole liquid injection process; all the electrolyte which is weighed in a weighing liquid storage tank is injected into the battery cell (34), and the weight of the battery does not need to be repeatedly weighed, so that the liquid injection speed is rapid, and the liquid injection quantity is accurate.

The embodiment of the invention discloses an SCR (Selective Catalytic Reduction) control method and device. The method comprises the following steps: firstly, obtaining the upstream NOx mass flow of target SCR; secondly, calculating the ammonia nitrogen ratio, the NOx conversion efficiency, the NH3 storage or desorption rate and the closed-loop correction coefficient corresponding to the target SCR; and finally determining the urea injection amount of the target SCR according to the upstream NOx mass flow, the ammonia nitrogen ratio, the NOx conversion efficiency, the NH3 storage or desorptionrate and the closed-loop correction coefficient of the target SCR. According to the method, after the upstream NOx mass flow of the target SCR is obtained, closed-loop control treatment is not directly performed after simply converting the upstream NOx mass flow into required NH3, but the ammonia nitrogen ratio, the NOx conversion efficiency and the NH3 storage or desorption rate are firstly utilized to treat the upstream NOx mass flow, and then the closed-loop correction coefficient is utilized for further treatment, so that the urea injection amount can be more accurately determined and used for reacting ammonia with NOx, and the NOx emission amount and the ammonia leakage amount can meet the national VI emission regulations of heavy-duty diesel engines.

The invention belongs to the technical field of oilfield chemistry, and particularly relates to an oil extraction method and a CO<2> injection amount determination method and device used for assistinghuff-puff oil increase. The oil extraction method comprises the following steps that firstly, pore volume, oil saturation, crude oil density, gas-oil ratio, gas-water ratio and crude oil compressioncoefficient are acquired, and substituting the pore volume, the oil saturation, the crude oil density, the gas-oil ratio, the gas-water ratio and the crude oil compression coefficient into a carbon dioxide injection amount model is carried out to obtain carbon dioxide injection amount; the carbon dioxide injection amount model is constructed according to the relationship between the carbon dioxideinjection amount and the pore volume, the oil saturation, the crude oil density, the gas-oil ratio, the gas-water ratio and the crude oil compression coefficient; then the carbon dioxide injection speed is determined; and finally, carbon dioxide is injected to assist huff and puff according to the determined carbon dioxide injection amount and injection speed so that oil extraction can be carriedout. According to the model, the physical parameters of an oil layer and the solubility of the carbon dioxide in oil and water are fully considered, the obtained carbon dioxide injection amount is proper, the oil extraction efficiency is high, and the crude oil yield is high.

The invention discloses an automatic thickened oil detection system which comprises a detection container, a crude oil water content analysis meter, a stirring device and a liquid level sensor. An exhaust device is arranged on the top of the detection container. An oil inlet of the detection container is connected to a crude oil main pipe through a first check valve and a first electric valve, and a flowmeter is arranged between the connection point and the connecting-in point of the crude oil main pipe. The stirring device is installed at the bottom of the detection container and connected to the crude oil main pipe through a second electric valve, a booster pump and a second check valve. The crude oil water content analysis meter is connected into the detection container to be used for detecting the water content of thickened oil inside the container. The liquid level sensor is arranged on the detection container and connected to the first electric valve to be used for detecting the height of the thickened oil in the detection container and controlling the first electric valve to be closed when the height of the thickened oil is larger than a preset value. The invention further provides an automatic oil extraction assistant injection amount adjusting system. By the adoption of the automatic thickened oil detection system, on-line automatic thickened oil detection can be achieved.

The invention discloses an electrolyte vacuum stirring bubble-removal device with a self-cleaning function. The device comprises a master controller, a vacuum stirring device, a liquid storage device, a self-cleaning device and a liquid injection device. In allusion to the liquid injection motion of the liquid storage device towards the liquid injection device, a liquid injection pump and a liquid injection pump controller for controlling liquid injection frequency and liquid injection amount is configured. Through the arrangement and cooperation of the vacuum stirring device and the liquid storage device, double electrolyte bubble-removal processing is carried out in the vacuum stirring device and the liquid storage device. Under the action of the liquid injection pump controller and the liquid injection pump, the bubble-removed electrolyte is accurately injected to the liquid injection device according to corresponding liquid injection frequency and liquid injection amount. Thus, it is ensured that there is no bubble in the electrolyte in a battery. The self-cleaning device can be used to automatically clean the liquid injection pump, the liquid storage device and the liquid injection device, so as to prevent crystallization and solidification of residual electrolyte. Thus, stability and reliability of subsequent liquid injection process are not influenced. The device provided by the invention has high degree of automation and is easy to operate and manage.

The invention relates to an automatic regeneration device of a suppression column used in low-pressure ion chromatography, which comprises a liquid injection device, a first time relay and a second time relay, wherein the first time relay and the second time relay are connected with the liquid injection device and are respectively used for controlling the liquid injection device to inject regeneration liquid or cleaning solution into the suppression column according to the set time; two power switches are respectively arranged on circuits where the first time relay is connected with a power supply and the second time relay is connected with the power supply; and the liquid injection device has two structural forms: the first structure consists of a three-way electromagnetic valve and a low-pressure pump connected with the three-way electromagnetic valve by a pipe fitting, and the second structure consists of regeneration liquid injection pump and a cleaning solution injection pump.

The invention discloses a blast furnace coal injection ratio adjusting method and system. The blast furnace coal injection ratio adjusting method comprises the steps of determining the replacement ratio of injected pulverized coal according to the calorific value of the injected pulverized coal in front of a blast furnace air outlet and the calorific value of coke in front of the blast furnace airoutlet; determining the potential economic value of the injected pulverized coal according to the water removed price of the injected pulverized coal, the purchase price of the coke and the replacement ratio of the injected pulverized coal; raising the coal injection ratio of current blast furnace smelting if the potential economic value of the injected pulverized coal is greater than a first preset economic threshold value; and lowering the coal injection ratio of current blast furnace smelting if the potential economic value of the injected pulverized coal is less than a second preset economic threshold value. Through the blast furnace coal injection ratio adjusting method, the more accurate pulverized coal injection quantity can be provided for blast furnace smelting.

The invention discloses a liquid adding and oscillation integration device used for textile verification. The device comprises a bottom plate, wherein the front end and the rear end of the left side of the upper surface of the bottom plate are independently fixed with a front side vertical plate and a rear side vertical plate in parallel; the side surface of the front side vertical plate is fixedly provided with a PLC (Programmable Logic Controller) through a fixed mount; the input end of the PLC and the output end of an external power supply are electrically connected; the upper end of the front side surface of the front side vertical plate is fixedly provided with a first supporting plate; and the upper surface of the first supporting plate is fixedly provided with a first stepping motor. When a material containing barrel moves back and forth, positioning is accurate, and in addition, the material containing barrel can conveniently vertically move. The liquid adding and oscillation integration device used for textile verification is convenient in operation, convenient and intelligent, does not need to occupy the working time of experiment personnel, and can obviously reduce the labor cost of a laboratory. A sliding plate downwards moves for a set distance so as to finish injecting solution into a test tube, and errors brought by manually adding liquid can be avoided so as toimprove detection accuracy.

The invention discloses a vacuumizing, liquid filling and sealing device for a plate multi-channel heat pipe. The vacuumizing, liquid filling and sealing device comprises a vacuum cavity connected with a vacuum valve, a quantitative liquid filling pump, a liquid filling plate and sealing molds; a cavity is formed in the liquid filling plate, one end of the liquid filling plate is provided with a liquid inlet connected with the quantitative liquid filling pump, and the other end of the liquid filling plate is provided with a plurality of liquid filling holes of which the number is the same as that of channels of the plate heat pipe and the positions correspond to those of the channels of the plate heat pipe one to one; the liquid inlet is connected with the quantitative liquid filling pumpthrough a pipeline, and the end with the liquid filling holes vertically stretches into the vacuum cavity from the upper end of the vacuum cavity in a sealing and matching mode; and sealing ports usedfor allowing the plate heat pipe to be filled with liquid to stretch into the vacuum cavity in a sealing and matching mode are oppositely arranged at the lower end of the vacuum cavity, and the sealing molds are arranged in the vacuum cavity and located on the two sides of the plate heat pipe. The invention further discloses a vacuumizing, liquid filling and sealing method for the plate multi-channel heat pipe. According to the vacuumizing, liquid filling and sealing device and method for the plate multi-channel heat pipe, the efficiency is high, the cost is low, the filling amount of all thechannels is same and precise, and the vacuumizing, liquid filling and sealing device and method are suitable for filling volatile and toxic working media.

A control method for an injection molding machine, comprising the steps of: establishing a basic specific volume, a base injection starting position, a basic VP switching position, and a pVT characteristic; and then recording the position of a screw to generate a molding injection starting position; recording the pressure and temperature in a material tube to generate the mold pressure value and the mold temperature value; then calculating a mold specific volume according to the mold pressure value, the mold temperature value and the pVT characteristic; and calculating a mold VP switching position according to the molding injection starting position, the ratio between the mold specific volume and basic specific volume, and the difference between the base injection starting position and a basic VP switching position; finally, controlling the motor to drive the screw to move forward according to the information of the mold VP switching position. In this way, the VP switching point can beadjusted according to the specific value and position difference of each mode, thereby ensuring the uniform weight of the finished product.

The invention provides an anti-radiation medicine liquid injection robot with the controllable liquid injection speed. The anti-radiation medicine liquid injection robot is composed of two parts, including an intelligent controller and a mechanical component, wherein the mechanical component is characterized by being composed of the following parts: a base plate (1), a linear guide rail (2) fixed to the edge of the base plate, a slider (3) capable of sliding on the guide rail, a motor (4), a motor bracket (5) fixed to the base plate, a screw rod (6) with threads, a coupler (7) arranged between the screw rod and a motor shaft, a nut (8) matched with the screw rod, a bracket (9) fixed to the slider (3) and the nut (8), a push rod (10) fixed to the slider, a pressure sensor (11) at the front end of the push rod, a pushed end (12) of an injection pump piston, a horizontal semicylindrical injection pump limiting groove (13), arc-shaped limiting cover boards (14) provided with hinges and being capable of being turned over at the upper part of the injection pump, an injection pump (15), a motor rotation angle sensor (16), and an intelligent controller (17) positioned on the same straight line with the guide rail and the motor.

The invention relates to a hydraulic sampling device and a hydraulic sampling method for treating a biological sample solution microfluidic chip. The hydraulic sampling device comprises a liquid container(1) which contains an incompressible liquid immiscible with a sample solution; a power source(2) which drives the liquid to enter a buffer bottle(4) through an input pipe(3); and the buffer bottle(4) containing a sample solution to be injected; when the power source(2) drives, the liquid enters the buffer bottle(4) via the input tube(3) to increase the hydraulic pressure, so that the sample solution stably and controllably enters the microfluidic chip(6) via an output tube(5).

The invention provides a flat plate micro heat pipe vacuumizing and liquid injection device and a use method thereof. The flat plate micro heat pipe vacuumizing and liquid injection device is composed of a vacuumizing part and a liquid injection part. The vacuumizing part is composed of a vacuum pump, a vacuum meter, an air collection bottle and a capillary tube. The vacuum pump is used for vacuumizing a flat plate micro heat pipe and the air collection bottle. The vacuum meter is used for observation of the vacuum degree. The liquid injection part is composed of an injector and a capillary tube. Liquid is injected into the flat plate micro heat pipe through the injector. In the vacuumizing and liquid injection processes, connection of the flat plate micro heat pipe and all parts is controlled by a manual valve. The flat plate micro heat pipe vacuumizing and liquid injection device is simple in structure, low in cost, high in precision of the vacuum degree and liquid injection volume, easy to operate and reliable in operation.

The invention relates to a split gas sample injection device which is used for analysis of total sulfur in gas of a petrochemical enterprise, a pressure stabilizing valve is arranged on a sample injection carrier gas pipe, two communicated three-ways are arranged on a conveying pipe, the first three-way is provided with a device for regulating the split ratio, the second three-way is provided with a carrier gas flow rate regulating and pressure stabilizing device for regulating the conversion rate of an instrument, and an outlet of the second three-way is communicated with a gas analyzer. The split gas sample injection device can analyze a variety of gas samples with different sulfur contents by taking a gas sample injection device, a liquid standard sample and the instrument as parameters, thereby expanding the analysis range of the sulfur content in the gas, simplifying the operation, improving the analysis speed, saving the time for debugging the instrument, saving the cost for purchasing the liquid standard sample and the instrument and reducing the production cost.

The invention discloses a numerical control boiler with a disincrustant injecting mechanism. A water sleeve is connected with the disincrustant injecting mechanism, and the disincrustant injecting mechanism comprises an injecting pipeline, a disincrustant tank, a first oil pump, a metering device, a first one-way valve, a second one-way valve, a draught fan and a blowing pipeline, wherein the disincrustant tank, the first oil pump, the metering device, the first one-way valve and the water sleeve are sequentially connected on the injection pipeline; one end of the blowing pipeline is connected to the position, on the rear side of the first one-way valve, of the injection pipeline, and the draught fan and the second one-way valve are sequentially connected on the blowing pipe; and the first oil pump and the draught fan are both connected with an injecting mechanism controller. The boiler facilitates user descaling, meets the using requirement of a user and has the good experience; the invention further provides the specific disincrustant injecting mechanism; and the disincrustant injecting mechanism is provided with a blowing mechanism, so that the injection amount of disincrustant is more accurate, the descaling effect is improved, and the boiler can be conveniently applied and popularized in the industry.

The invention discloses an accurate trace-amount acupoint injection pen which comprises a pen shell, an injector, a driving device, a push rod, an inductive sensor, a triggering circuit, a triggering device, a control panel, a control circuit board and a power supply.The driving device, the push rod and the injector are sequentially arranged in the pen shell from top to bottom, the driving device is connected with one end of the push rod, and the other end of the push rod abuts against the tail end of an injector piston.The inductive sensor is arranged on the inner wall of the pen shell.The control circuit board and the power supply are arranged at the upper portion inside the pen shell, and the control panel is arranged on the outer surface of the pen shell.The accurate trace-amount acupoint injection pen is different from a common muscle injector and can easily complete two actions of post-transdermal suction and injection.Even if an unskilled person uses the injection pen, the injector does not shake and shift, medical negligence is effectively prevented, and the accurate trace-amount acupoint injection pen facilitates large-area popularization and usage of an acupoint injection technology.The accurate trace-amount acupoint injection pen achieves safer, more accurate and trace-amount acupoint injection and is easy to operate and popularize.

The invention discloses an experimental device for visualizing flow traces in a rod bundle channel under moving conditions, which comprises a rod bundle element and a rod bundle channel located in the shell of the rod bundle channel, and a visual window is arranged on the shell of the rod bundle channel; Connect the fixed flange, the fixed flange is used to fix the rod bundle components and enable the working medium to flow into the rod bundle channel; the upper surface of the fixed flange is provided with a number of needles, and the fixed flange is provided with a flow channel connected to all the needles. The channel also includes an injection system for injecting the tracer into the channel. The invention is used to solve the problem in the prior art that there is no device suitable for the flow track visualization experiment in the rod bundle channel under the condition of movement, realize the visualization experiment of the single-phase flow flow track in the rod bundle channel, and obtain the rod bundle under different moving conditions The characteristics of the single-phase flow path in the channel, in order to study the influence of motion conditions on the laminar flow and turbulent flow process in the rod bundle channel, and to deepen the understanding of the flow and heat transfer mechanism in the rod bundle channel under the motion condition.

The invention provides an injection device and relates to the technical field of medical equipment. The injection device comprises an extrusion part, an end cap, an adjustment housing and a push rod;one end of the extrusion part is used for abutting against a piston and used for moving up and down along the inner wall of a mixing housing; the adjustment housing sleeves the upper end of the outside of the extrusion part; the outer wall of the adjustment housing is provided with a bump; one end of the adjustment housing far away from the extrusion part is provided with a through hole for the push rod to pass through; the inner wall of the end cap is provided with a scale groove matched with the bump, and the scale groove extends in the axial direction of the end cap. The scale groove and the bump are disposed at the top of the device, which can facilitate a user's observation and enables the touch to be good.

The invention discloses an economical efficient mixed water and fertilizer simultaneous application system and method. The economical efficient mixed water and fertilizer simultaneous application system comprises a liquid fertilizer treatment assembly and a solid fertilizer treatment assembly which are arranged in a pump room, wherein the liquid fertilizer treatment assembly comprises a liquid fertilizer pool, the solid fertilizer treatment assembly comprises a material soaking pool, the material soaking pool communicates with a solid fertilizer pool, a pipeline mechanism communicates between the liquid fertilizer pool and the solid fertilizer pool, the water inlet end of the pipeline mechanism communicates with a water inlet, and the water outlet end of the pipeline mechanism communicates with a water outlet; the water inlet and the water outlet are both formed in the wall of the pump room, and the pipeline mechanism is electrically connected with a control system. The economical efficient mixed water and fertilizer simultaneous application system and method are low in production cost, convenient to use, more beneficial to popularization and use in simple agricultural water and fertilizer integrated irrigation, high in system accuracy and excellent in water and fertilizer integrated irrigation working efficiency,, the structure is simple, and operation is easy.

The invention discloses an injection molding mechanism capable of evenly heating and efficiently plastifying. The injection molding mechanism comprises a heating screw rod (1), a heating cavity (2), a charging barrel (3) and a sprue bush connection end (4), and also comprises a rafael net (5), wherein the heating screw rod (1) is horizontally arranged inside the rafael net (5); one end of the rafael net is connected with a motor; the motor drives the rafael net (5) to rotate; the rotation direction of the rafael net (5) is reverse to that of the heating screw rod (1); a screw cooling water pipe is arranged on the outer surface of the lower end of the charging barrel (3); a conical baffle plate (6) of which the top and the bottom are communicated is arranged inside the heating cavity (2); the narrow end of the conical baffle plate (6) is communicated with the sprue bush connection end (4); the round edge of the wide end of the conical baffle plate (6) is connected with the heating cavity (2). The injection molding mechanism can fully agitate, the plastifying homogeneity is improved, the situation that the injection molding particles are fused in the charging barrel to block a discharge hole is avoided, the pressure at the end of the sprue bush is kept constant, and the actual injection molding amount is accurate.

The invention provides an engine emission control method and device, and the method comprises the steps: determining a first emission amount of nitrogen oxide corresponding to a target working condition according to a first corresponding relation between a working condition when an exhaust gas recirculation function is started in a steady state and the emission amount of nitrogen oxide; according to a second corresponding relation between the working condition when the exhaust gas recirculation function is closed in a steady state and the emission amount of the nitric oxide, the second emission amount of the nitric oxide corresponding to the target working condition is determined, and according to the set exhaust gas recirculation rate and the actual exhaust gas recirculation rate of the engine, a target deviation correction coefficient is determined; by means of the difference value of the first emission amount and the second emission amount and the target deviation correction coefficient, the correction value of the emission amount of the nitric oxide is determined, the correction value related to the actual working condition can be used for correcting the first emission amount, the accurate target emission amount is obtained, and therefore the appropriate urea injection amount can be determined in the transient state.

The invention relates to a constant pressure and temperature retention enema syringe. In the constant pressure and temperature retention enema syringe, a bottle body (8) is a threaded hole cylindrical sealed vessel, a graduation line is arranged on a cylinder surface, the bottle body (8) is in threaded connection with a bottle cover (9) through a silicone cushion (5) and a filter film (7), the bottle cover (9) is provided with two via holes in which a gas inlet plug (4) and an infusion plug (6) are inserted, and the lower port of the infusion plug (6) approaches the bottle bottom; one end of a gas inlet pipe (3) is inserted into the upper end of the gas inlet plug (4), and one end of an infusion tube (10) is inserted into the upper end of the infusion plug (6); and the other end of the gas inlet pipe (3) is inserted into an electric air pump through a one-way valve (2), and the other end of the infusion tube (10) is inserted into an anal tube (13) through a one-way valve (11) and a constant temperature heater (11). The invention satisfies the requirements of accurate injection rate, convenient operation, uniform velocity, constant temperature, filtering, simple flow and ideal treatment effect without backflow or uncomplete injection.

The invention relates to a micro-injection pump. The micro-injection pump comprises a pump body and a driving device; the pump body is internally provided with a liquid supply cavity, a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is communicated with one end of the bottom of the liquid supply cavity, the liquid outlet channel is communicated with the other end of thebottom of the liquid supply cavity, and a liquid inlet pipe is arranged at the tail end of the liquid inlet channel; a liquid outlet pipe is arranged at the tail end of the liquid outlet channel, aninlet one-way valve is arranged on the liquid inlet pipe, an outlet one-way valve is arranged on the liquid outlet pipe, and the driving device comprises a shell, a top cover, a piezoceramic driver, adriving base, connecting arms, a driving rod and an elastic press membrane; the connecting arms are connected between the driving base and the shell, the upper end of the driving base is provided with a mounting groove of a piezoceramic starter, the top cover is arranged at the top of the driving base, the upper end of the driving rod is connected with the lower end of the driving base, the lowerend of the driving rod is connected with one end face of the elastic press membrane, and the other end face of the elastic press membrane and the liquid supply cavity surround a pump cavity. The micro-injection pump has the advantages that the vibration abatement capability is good, and the injection amount is precise.

The invention provides a dry gas quantitative enrichment system and method. In the quantitative enrichment stage, the closed space in the enrichment system is in a negative pressure state, and there is no requirement for the gas volume and air pressure of the gas sample entering the closed space, which can meet the requirements of It is suitable for the experimental analysis requirements of gas samples with low gas volume and low pressure stored in various ways, and has a wide range of applications. Quantitative gas samples can be drawn and injected into the closed space through a scaled device under normal pressure to realize quantitative sampling. In the sampling analysis stage, the carrier gas is sent into the previous closed space by switching the pipeline switching path, and all the gas enters the closed space. The gas samples in the space finally enter the analytical instrument with the carrier gas, which ensures the accuracy of the gas sample injection volume. The data is more complete.

The invention relates to a quick feeding machine for electronic cigarette juice. The quick feeding machine comprises a platform, an oil pump, a feeding cylinder, a slideway and an oil injector are arranged on the surface of the platform, the oil pump is arranged on one side of the slideway, the feeding cylinder is arranged at one end of the slideway, a pipeline at one end of the oil pump is connected with an oil tank, a pipeline at the other end of the oil pump is connected with an oil injector, the other end of the oil injector is connected with a pipeline of the oil injector, and the oil injector is arranged above a middle part of the slideway. The quick feeding machine for the electronic cigarette juice has the advantages that a fixture is driven by the feeding cylinder, the oil pump and the oil injector cooperate to inject juice into multiple products at the same time, so that the quick feeding machine is automatic in operation, high in processing efficiency and precise in injection quantity.

An auto-fat transplanting apparatus is composed of negative- pressure sucking tube, container with internal multi-tooth comb shaped rotary rod, laminar flow separator, dewatering device, injection tube, sealed connecting tube and pump. Its fat particles screening method for purifying and separating fat particles to make Them have higher activity is also disclosed.