35results about "Gas coolection apparatus" patented technology

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.

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 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.

　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 invention relates to a gas recycling device of a round tube high-temperature creep fatigue tester, which comprises a high-pressure gas cylinder, a furnace body, a gas treatment pool and a gas recycling bottle, wherein a round tube sample for testing is arranged in the furnace body, and a temporary gas storage bottle is arranged between the high-pressure gas cylinder and the furnace body. A pressurizing electromagnetic valve, a load electromagnetic valve and a second valve are arranged on the pipeline between the high-pressure gas cylinder and the temporary gas storage cylinder, a third valve is arranged on the pipeline between the temporary gas storage cylinder and the furnace body, and a safety valve is arranged on the pipeline between the furnace body and the gas treatment pool; and a third compressor, an air filter and a fourth valve are arranged on a pipeline between the gas treatment pool and the gas recycling bottle. The device is simple and ingenious in structure, can meet the requirements of the creep fatigue test of the pipeline, can recycle and reuse the gas after the test, and can save the cost and reduce the probability of resource waste while ensuring that the environment is not polluted.

The purpose of the present invention is to provide an injection apparatus and an injection method for a liquid sample for standard gas production, wherein the injection apparatus for injecting a liquid sample present in a liquid state at room temperature into a standard gas container has an improved structure that minimizes the area in which the liquid sample directly contacts the injection apparatus so as to prevent the problem in which the liquid sample is adsorbed into the injection apparatus. Furthermore, another purpose of the present invention is to provide an injection apparatus and an injection method for a liquid sample for standard gas production, in which a step of volatilizing the remaining liquid sample by heating is eliminated during the injection of the liquid sample, thereby preventing the apparatus from being damaged by heating to thereby improve the durability of the apparatus.

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 present invention is how to design a tail gas recovery device for liquid chemicals that can recycle the tail gas when using liquid chemicals for experiments or energy utilization. In order to solve the above technical problems, the present invention provides such a tail gas recovery device for liquid chemicals, comprising: a bottom plate, a mounting frame is connected to one side of the top of the bottom plate; a sliding plate, a sliding plate is slidably connected to the other side of the bottom plate; The trachea, the top side of the mounting frame is connected with a trachea; the joint, one side of the trachea is connected with a joint. The invention recovers the tail gas of the liquid chemical through the cooperation of the air bag, the lifting assembly and the extrusion assembly, so as to realize the effect of recovering the tail gas of the liquid chemical.

A measuring apparatus and a method for determining the degree of bacterial contamination of process liquids uses at least one gas sensor for measuring the gas concentration of a gas producible by aerobic bacteria in the process liquid. An evaluating device is connected with the sensor for evaluating a sensor signal generated by the sensor and correlated with the degree of bacterial contamination. To determine the degree of bacterial contamination a funnel-shaped gas collecting bell is partly immersed in the process liquid so that a gas collection cavity for collection of the escaping gas is formed directly above the process liquid surface in the gas collecting bell. The gas escaping can be fed by a gas pump via a gas feed line to the sensor, conducted via the sensor and pumped back again to the gas collection cavity by way of a gas return line.

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.

The invention provides a food aroma collection device and a food aroma component determination method. the food aroma collection device is used for collecting volatile aroma substances of general food or dishes for subsequent flavor analysis, and the food aroma collection device comprises a gas cylinder, a volatilization bottle, a gas collection pump, a flow meter and an adsorption assembly which are sequentially communicated through a gas pipeline. According to the food aroma collection device, the volatilization bottle is adopted as a gas collecting container, and volatile components in food are collected in a carrier gas purging and gas pump acceleration mode and then are enriched through the adsorption assembly. The method has the characteristics of large sample capacity, good leakproofness, simplicity in sample placement, reutilization, large sampling amount and the like; and compared with a traditional method, the method has the advantages that more volatile aroma components can be better captured, a better pretreatment enrichment method is provided for qualitative detection of aroma components, particularly qualitative detection of trace components, and the detection accuracy is effectively improved.

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 discloses an exhaust gas detection device. The exhaust gas detection device comprises a lower box body, wherein a long groove is formed in an upper surface of the lower box body, a lifting assembly is arranged in the long groove and comprises a rotation lead screw, a first connection rod, a second connection rod and a support plate, a lower fixed block and an upper movable block arerespectively hinged with two ends of the first connection rod, a lower movable block and an upper fixed block are respectively hinged with two ends of the second connection rod, a detector is arrangedon an upper surface of the support plate, an exhaust gas collection box is connected with an air outlet end of the detector, push plates are arranged on an upper surface and a lower surface of the interior of the exhaust gas collection box in a sliding way, and piston push rods are arranged at the centers of rear surfaces of the push plates. The exhaust gas detection device is simple in structureand is convenient to carry; by arranging the lifting assembly, the height adjustment of the device can be achieved, and the operation comfortableness is ensured; and the exhaust gas collection box isarranged, exhaust gas after detection can be collected by pulling the piston push rods, and the collection effect is excellent.

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 discloses a laboratory gas collecting device. Capture, separation and collection of an organic gas under a low temperature environment are realized through the communication of a tank, cooling liquid, a cooling liquid cycling system, a gas inlet pipeline, a gas discharge pipeline and a gas storage device, and the production operation safety is greatly improved; a firming device is arranged below the gas storage device, thus preventing the condition that gas collection is too quick and gas pressure is too large so that the gas storage device is thrust aside.

The invention belongs to the technical field of laboratory gas preparation, and discloses a simple methane gas preparation and collection device and method for a laboratory, and the simple methane gas preparation and collection device for the laboratory is provided with a gas preparation structure for generating gas through a reaction of a liquid experimental sample in a conical flask; the gas transition structure is used for realizing circulation transition of gas through two glass guide pipes and an elastic rubber pipe; and the gas collection structure is used for collecting gas in the sample through a vacuum aluminum foil gas bag by utilizing a drainage gas collection method. The gas preparation structure is provided with a conical flask and a silica gel plug, and the silica gel plug is plugged into a bottle opening of the conical flask. The device is used for researching the concentration change of gas such as methane generated by collecting a bacterial liquid sample in a laboratory. The gas preparation and collection device can be self-made by using conventional equipment in a laboratory, the operation is simple, the cost is low, and the preparation and collection of a required gas sample can be effectively realized.