59results about "Gas coolection apparatus" patented technology

The present invention is directed to improvements in storage and delivery systems that allow for rapid fill and delivery of gases reversibly stored in a nonvolatile liquid medium, improvements in delivery and purity of the delivered gas. The low pressure storage and delivery system for gas which comprises:a container having an interior portion containing a reactive Lewis basic or Lewis acidic reactive liquid medium that is reversibly reacted with a gas having opposing Lewis acidity or basicity;a system for transferring energy into or out of the reactive liquid medium; or,a product gas purifier (e.g. a gas / liquid separator); or both.

Systems and methods are disclosed that use a nebulizer (106) for remote aerosol generation and then transport the aerosol by way of, for example, an argon gas stream through tubing (154). By transporting the chemical to be analyzed in aerosol form, transport time is reduced from about thirty minutes to less than one minute, using a relatively small amount of sample, and enabling the accurate, remote analysis of a variety of chemicals, including relatively high pH chemicals.

The invention discloses a centralized control recycling device and method for waste gas in a laboratory and belongs to the technical field of gas recycling. The centralized control recycling device comprises a recycling gas path and an electric control system, wherein the electric control system comprises a control module and a first pressure sensor; the recycling gas path comprises a buffering gas tank, a gas pump, a refilling pipeline and a gas storage bottle which are connected in sequence by pipelines; the buffering gas tank is further provided with a tail gas guide pipe for being connected with a tail gas outlet of an instrument; the first pressure sensor is arranged in the buffering gas tank; the control module is electrically connected with the gas pump and the first pressure sensor respectively. With the adoption of the recycling device and the recycling method, the aim of recycling tail gas after sulfur hexafluoride gas is measured in a gas detection laboratory can be realized; the recycling device and the recycling method have the characteristics of simple structure and convenience for operation.

The invention discloses a special waste liquid collecting device for a laboratory precise instrument. The device comprises a base, wherein a waste liquid collecting box and a waste gas purification box are sequentially and fixedly connected onto the upper surface of the base from the left side to the right side; the waste liquid collecting box and the waste gas purification box are in sealed communication through a waste gas conveying pipe; a waste gas purifier is arranged on the lower surface of the inside of the waste gas purification box; a first stirring rod and a second stirring rod are arranged in the waste gas purification box; the positions of the first stirring rod and the second stirring rod are symmetrical; a plurality of groups of stirring blades in uniform distribution are fixedly connected onto the outer side walls of the first stirring rod and the second stirring rod; one ends, far away from the waste gas purifier, of the first stirring rod and the second stirring rod penetrate through the top of the waste gas purification box and extends to the outer side. The device has the advantages that the structure is simple; the operation is convenient; the condition that theharmful gas generated by the waste liquid can be treated when the waste liquid generated by the precise instrument is collected can be ensured; in addition, the waste liquid collecting device has theautomatic warning function.

An apparatus and method for determining the presence of a disease by analyzing a specimen by providing a vial partially containing the specimen and partially containing a headspace above the specimen, injecting an inert gas into the specimen in the vial to cause bubbling of the gas throughout at least a portion of the specimen such that the gas mixes with volatile organic compounds (VOCs) present in the specimen to create a VOC / gas mixture that is released into the headspace, collecting the VOC / gas mixture from the headspace in the vial, supplying the VOC / gas mixture to a chamber within the apparatus, causing the VOC / gas mixture to pass over a sensor array in proximity to the chamber, the sensor array generating an electrical signal as a function of VOCs detected in the VOC / gas mixture, and processing the electrical signal to determine the presence of a disease in the specimen.

The utility model belongs to the technical field of temperature control equipment, and particularly relates to a gas-liquid double-cooling low-temperature thermostatic bath which comprises a machine body, a bath body and a refrigeration mechanism, and the bath body and the refrigeration mechanism are located in the machine body. The refrigerating mechanism is connected with a condensate coil pipe in the tank body, the tank body is connected with a liquid inlet and a liquid outlet, and liquid in the tank body circulates or circulates through the liquid inlet and the liquid outlet. A gas coil pipe is further arranged in the tank body, a gas inlet connector and a gas outlet connector are arranged on the side face of the machine body, and gas enters the gas coil pipe through a pipeline and the gas inlet connector and flows out of the gas outlet connector after being cooled by liquid in the tank body. The liquid and gas cooling device can meet the cooling requirements of liquid and gas, is suitable for wider experiment or industrial application scenes, is particularly applied to the working condition that the liquid and the gas are cooperatively cooled, has higher adaptability, can better keep the consistency and the stability of the temperature, and saves time and resources.

The invention discloses a dehydration, degassing and storage device for insulating oil in the laboratory. The device comprises a vacuum pump, a nitrogen bag, a vacuum glass bottle, a constant-temperature magnetic stirrer and an oil storage tank, wherein the vacuum glass bottle is arranged on the constant-temperature magnetic stirrer and internally matched with a magnetic stirring rotor, an exhaustport of the vacuum glass bottle is connected with the vacuum pump and the nitrogen bag, an exhaust pipeline of the oil storage tank is connected with the vacuum pump and the nitrogen bag, an oil outlet of the vacuum glass bottle is connected with an oil inlet pipeline of the oil storage tank, and an oil taking pipeline is arranged at the bottom of the oil storage tank. The invention also discloses a dehydration, degassing and storage method for the insulating oil in the laboratory. The dehydration, degassing and storage of the insulating oil can be completed by only one set of simple equipment, and the whole process is isolated from air, so that the dehydration, degassing and storage device has the advantages of low equipment consumption, easiness in construction, simplicity in operation,small occupied space and good dehydration and degassing effects, and the influence of excessive moisture or dissolved gas in the insulating oil on simulation experiment results such as breakdown andpartial discharge can be effectively reduced.

The present document describes a process for production of hydrogen gas (H2) from fermentation of crude glycerol with a hydrogen producing microorganism in a bioreactor. The process comprises the step of introducing a volume of crude glycerol in a fermentation mixture which comprises a fermentation medium comprised of crude glycerol and hydrogen producing microorganisms under a fermentative hydrogen production condition, and then removing a volume of the fermentation mixture equal to the second volume of the crude glycerol, to maintain constant the total volume of the fermentation mixture.

The invention relates to a gas recycle pressure stabilization device that has a pressure stabilization unit containing pressure stabilization cavity. The outlet, intake and pressurizing pump are set on the different part of pressure stabilization cavity. The invention could effectively take recycling to the unstable system tail gas and supply to gas using device. It is low cost.

Method of treating gas and gas treatment device, the gas treatment device comprising: a first chamber, comprising a first inlet, a first outlet and a first energy supply system, allowing the gas to enter the first chamber through the first inlet; a second chamber comprising a second outlet and a second energy supply system; a third chamber comprising a third inlet in communication with the first outlet and the second outlet; and a fourth chamber comprising a fourth inlet and a scrubbing system containing a solvent comprising water molecules (H2O), wherein the third outlet of the third chamber is in communication with the fourth inlet of the fourth chamber.

The invention relates to a recovery device, in particular to a tail gas recovery device for liquid chemicals. The technical problem to be solved by the invention is how to design the tail gas recovery device for the liquid chemicals, which can recycle tail gas when the liquid chemicals are used for experiments or energy utilization. In order to solve the technical problem, the tail gas recovery device for the liquid chemicals comprises a bottom plate, wherein one side of the top of the bottom plate is connected with a mounting frame; a sliding plate, wherein the other side of the bottom plate is connected with the sliding plate in a sliding manner; an air guide pipe, wherein one side of the top of the mounting frame is connected with the air guide pipe; and a joint, wherein one side of the air guide pipe is connected with the joint. The tail gas of the liquid chemicals is recycled through cooperation of the air bag, the lifting assembly and the extrusion assembly, and therefore the effect of recycling the tail gas of the liquid chemicals is achieved.

The invention discloses a chemical experiment table which comprises a bearing assembly, a temperature measurement assembly and a gas collection assembly. The bearing assembly comprises a base and a back plate which is perpendicularly fixed to the base through a fixing device, the right side of the front end face of the back plate is provided with an experimental device storage rack, the left side of the back plate is provided with an experiment test tube fixing rack, and the right side of the experiment test tube fixing rack is provided with a gas storage test tube fixing rack. According to the chemical experiment table, experimental apparatuses can be conveniently taken or stored, unnecessary damage of the experimental apparatuses can be avoided, multiple experimental devices can be stored, and therefore multiple chemical experiments can be demonstrated; the universality is high, a study effect can be improved, vivid and interesting teaching is guaranteed, and the chemical experiment table is suitable for being widely applied in chemical teaching.

The invention provides a separable gas collecting bottle, which comprises a gas storage bottle and a separable cover, wherein the separable cover comprises a bottle cover, and the bottle cover is connected with the gas storage bottle in a sealing way; a gas outlet pipe and a gas inlet pipe are inlaid in the bottle cover, and the separable cover is of an integrally molded structure. A reactive tank for placing a reagent to carry out drying, impurity removal and other treatments on an inflowing gas is arranged at an inlet of the gas inlet pipe. The separable gas collecting bottle provided by the invention has the beneficial effects that the gas storage bottle is connected with the separable cover in a sealing way, and the detachable cover integrally molded with the gas inlet and outlet pipes ensures the sealing performance; different types of separable covers are designed to be selected for collected gases of different densities; at the same time, the reactive tank is designed at the gas inlet pipe to filter out foreign gases. The device has the advantages of simple structure, good sealing performance, no gas leakage, no pollution of gas in the bottle, simple operation and strong practicality.

The present invention provides a gas generating material having high adhesiveness to a member to be bonded and having a large amount of gas generated per unit time even if it further contains a silane coupling agent. The gas generating material according to the present invention contains a binder resin, a gas generating agent which is an azo compound or an azide compound, and a silane coupling agent having an amino group.

The present application discloses a fluidic system, a control method, a sequencing system, and a storage medium. The fluidic system includes a reaction device, a pipeline, and a degassing device. The reaction device is configured to provide a site for carrying out biochemical reactions. The pipeline is in communication with the reaction device and configured to deliver liquid to the reaction device and / or receive liquid flowing out from the reaction device. The degassing device is connected to the pipeline and configured to remove gas from the liquid in the pipeline. In this way, by removing gas from the liquid in the pipeline using the degassing device, the formation of bubbles in the reaction device can be reduced.

The utility model discloses an intelligent ventilation cabinet which is used for extracting experiment waste gas generated by experiment liquid and is in signal connection with a block chain network. The intelligent ventilation cabinet comprises a ventilation cabinet body, a chip set and a detection module. The ventilation cabinet comprises an experiment groove, a movable door and an air draft pump. The experiment groove is used for containing experiment liquid. And the movable door is movably connected with the experimental tank. The air draft pump is communicated with the experiment groove and used for extracting experiment waste gas. The chipset is arranged in the ventilation cabinet, the chipset comprises a block chain information tracing piece, and the block chain information tracing piece is in signal connection with the block chain network and is used for recording the source of the experimental liquid and a circulation process of the experimental liquid in the block chain network for tracing. The detection module is arranged in the ventilation cabinet and is in signal connection with the chipset; and the detection module is used for measuring the gas property of the experimental waste gas.

The present application discloses a fluidic system, a control method, a sequencing system, and a storage medium. The fluidic system includes a reaction device, a pipeline, and a degassing device. The reaction device is configured to provide a site for carrying out biochemical reactions. The pipeline is in communication with the reaction device and configured to deliver liquid to the reaction device and / or receive liquid flowing out from the reaction device. The degassing device is connected to the pipeline and configured to remove gas from the liquid in the pipeline. In this way, by removing gas from the liquid in the pipeline using the degassing device, the formation of bubbles in the reaction device can be reduced.

A smart fume hood is used for extracting the experimental waste gas generated by an experimental liquid and is electrically connected to a blockchain network. The smart fume hood includes a fume hood, a chipset, and a detection module. The fume hood includes an experimental tank, a moving door, and a peristaltic pump. The experimental tank is used for holding the experimental liquid. The moving door is movably connected to the experimental tank. The peristaltic pump is connected to the experimental tank and used for extracting the experimental waste gas. The chipset is located in the fume hood and includes a blockchain information tracking part. The blockchain information tracking part is electrically connected to the blockchain network and used for recording the source and logistics information of the experimental liquid on the blockchain network for tracing.

The invention belongs to the technical field of gas collection, and discloses a single-person-operable semi-automatic water drainage and gas collection fixing device which comprises a water bucket, a fixing framework made of No.8 iron wires, a gas collection bottle, a rubber plug and a 3mm rubber tube, the device has the advantage of convenience in operation, solves the problem that a single person performs computer operation and water drainage and gas collection at the same time, greatly improves the operation efficiency, has the advantage of low cost, only needs 1.8 m iron wires to make the whole device, is easy in material obtaining and extremely low in cost, is suitable for low-cost demand scenes such as field construction, and is suitable for popularization and application. The gas collecting device has the advantages that time and labor are saved, continuous manual observation and handheld operation are not needed, manpower is liberated, hands are prevented from being soaked in cold water below 0 DEG C, operation comfort and safety are improved, the gas collecting device has the effect of avoiding gas leakage, the gas collecting bottle can be placed in advance and kept stable, gas discharged halfway by the analyzer can be collected in the whole process, and the gas collecting efficiency is improved. The optimal gas collection time cannot be missed, and the gas collection efficiency and completeness are improved.

The invention discloses a gas-liquid pressure balance regulator and a water draining and gas collecting device with the same, and belongs to the field of gas measurement equipment based on a drainage method. The regulator includes a pressure balance regulator body used for cooperating with the bottom end of a gas collecting measuring cylinder in a sealed mode to conduct drainage and gas collection, the pressure balance regulator body is internally provided with a gas inlet channel used for introducing gas into the gas collecting measuring cylinder, the gas inlet channel contains a capillary tube section, and the gas inlet channel is internally connected with an external one-way valve; the pressure balance regulator body is further internally provided with a water storage cavity and a drainage channel used for draining water drained by the gas collecting measuring cylinder into the water storage cavity; one side of the water storage cavity is further provided with a water outlet nozzle. According to the gas-liquid pressure balance regulator and the water draining and gas collecting device with the same, a design concept of not adopting conduits is adopted, namely collection and measurement of gas on the basis of the drainage method are achieved without adopting conduits for connection; the high precision is ensured, and meanwhile, the portability and operability of the regulator are improved; moreover, by using water in the water storage cavity to cool high-temperature gas, interference caused by vapour on experimental precision is eliminated, and suck-back or siphonage phenomena resulted from unstable air pressure in a pipeline or excessively high gas flow rate can be avoided.

A system for collecting a sample of a gas in an aqueous environment is described herein. The system includes a collection vessel having a body having a cavity and a bottom edge forming a perimeter around an opening on an underside of the body. The opening is sized to receive the sample of the gas into the cavity as the sample of the gas travels upwardly and the main body is positioned directly above the sample of gas in the aqueous environment. The collection vessel also includes a valve coupled to the body. The valve provides for the sample of the gas to be removed from the cavity without travelling through the opening on the underside of the main body. The collection vessel also includes a confinement structure having a and a coupling mechanism configured to retain the collection vessel at least partially in the confinement structure.

　Provided is a gas-generating material which exhibits excellent adhesion to a member that is to be adhered to, and which generates a large volume of gas per unit of time even when a silane coupling agent is included.　The gas-generating material according to the present invention comprises: a binder resin; a gas-generating agent that is an azo compound or an azide compound; and a silane coupling agent comprising an amino group.

The utility model provides a portable waste gas detection and collection device, and belongs to the technical field of waste gas collection. Comprising a box body, a portable mechanism and a waste gas collection height adjusting mechanism, a push rod is mounted on the outer surface of the box body, the portable mechanism comprises a mounting frame, the mounting frame is stably mounted on the outer surface of the box body, a rectangular hole is formed in the bottom of the mounting frame, and rolling wheels are arranged in the rectangular hole. And the waste gas collection height adjusting mechanism is mounted outside the box body. The mounting frame is mounted outside the box body, the rolling wheels are arranged at the bottom of the mounting frame, the ejector rod is fixedly mounted at the bottom of the box body, and the ejector rod and the mounting frame are connected together, so that the box body can be stably mounted on the mounting frame, and the device can be moved by pushing the box body; the device can be conveniently carried to a required use position, manpower is saved, and operation is convenient.

An apparatus and method for determining the presence of a disease by analyzing a specimen by providing a vial partially containing the specimen and partially containing a headspace above the specimen, injecting an inert gas into the specimen in the vial to cause bubbling of the gas throughout at least a portion of the specimen such that the gas mixes with volatile organic compounds (VOCs) present in the specimen to create a VOC / gas mixture that is released into the headspace, collecting the VOC / gas mixture from the headspace in the vial, supplying the VOC / gas mixture to a chamber within the apparatus, causing the VOC / gas mixture to pass over a sensor array in proximity to the chamber, the sensor array generating an electrical signal as a function of VOCs detected in the VOC / gas mixture, and processing the electrical signal to determine the presence of a disease in the specimen.

The fragrance ingredient or composition spatial recognisability prediction method (200) to prepare a fragrance composition comprising said fragrance ingredient or composition, comprises the steps of: - selecting (205), upon a computer interface, a value representative of between one and two of the following parameters: - a minimum sensory intensity level, corresponding to a predetermined minimum psychophysical intensity for the ingredient, - a maximum distance, corresponding to a distance at which the ingredient is to be perceived at a minimum predetermined psychophysical intensity level or - a quantity of the ingredient in liquid phase, wherein the selected value is selected within a range of at least two distinct values, - computing (215), by a computing system, a value representative of either one of the following parameters: - a minimum sensory intensity level, corresponding to a predetermined minimum psychophysical intensity for the ingredient, - a maximum distance, corresponding to a distance at which the ingredient is to be perceived at a minimum sensory intensity level selected or set by default, or - a quantity of the ingredient in liquid phase and wherein the computed value is representative of a parameter other than the parameter associated with the selected value and wherein a value for the parameter neither selected nor computed is set to a default value, said ingredient digital identifier corresponding to a physical ingredient to be used within a fragrance composition to be prepared as a function of the computed and selected values.

The utility model relates to the technical field of gas absorption, in particular to an organic gas absorption device for an experiment. The organic gas absorption device for the experiment comprises a bottle body, a bottle plug is inserted into a bottle opening of the bottle body, and a gas inlet pipe and an exhaust pipe are fixedly installed on the bottle plug; the bottom of the air inlet pipe is of a sealed structure, an exhaust hole is formed in the air inlet pipe, a piston column is arranged in the air inlet pipe, the air inlet pipe is sleeved with an installation disc, an arc-shaped ring is arranged on the outer disc face of the installation disc, and an air cavity is formed in the arc-shaped ring. According to the organic gas absorption device for the experiment, the purpose of preventing suck-back is achieved through the arranged piston column, due to the fact that the multiple exhaust holes are annularly formed, gas is dispersed into multiple strands of bubbles to enter washing liquid, the mixing degree and the contact area of the organic gas and the washing liquid are greatly improved, and the washing effect is improved. The arc-shaped ring outside the mounting disc and the spherical bottle body form the arc-shaped air channel, and air needs to rise and be exhausted along an arc-shaped path, so that the retention time of the air in the washing liquid is prolonged, and the absorption efficiency is improved.