78 results about "Gas holdup" patented technology

The invention belongs to the technical field of multiphase flow measurement, and relates to a bubble flow gas content ultrasonic measurement method and device based on bubble reflection, and the method comprises the following steps: measuring ultrasonic transit time tF (alpha) by using an ultrasonic transmitting and receiving probe mounted on one side of a pipeline; and based on the ultrasonic wave transit time tF (alpha) and according to a pre-calibrated relation function or relation curve of the transit time of the ultrasonic wave in the bubble flow along with the change of the gas content, the corresponding gas content alpha is calculated. According to the bubble flow gas content ultrasonic measurement method and device based on bubble reflection provided by the invention, a relation function or a relation curve that the transit time of the ultrasonic waves after being reflected by the bubbles in the bubble flow is reduced along with the increase of the gas content can be calibrated in advance by utilizing a reflection effect of the ultrasonic waves at a gas-liquid interface; in practical application, the gas content of the bubble flow can be calculated by recording the transit time of the ultrasonic waves reflected by the bubbles in the bubble flow according to the calibrated relation function or curvilinear relation.

The invention relates to the technical field of hydrogen energy preparation and process control, and discloses a fuzzy PID (Proportion Integration Differentiation)-based pressure control method for an alkaline electrolytic water hydrogen production system, which comprises the following steps of: firstly, acquiring current, pressure and separator liquid level data of the system in real time, and calculating a source-load gradient synergistic factor for representing the hysteresis degree of source end disturbance and load end response according to the current, pressure and separator liquid level data; and then pump valve heterogeneous cooperative control is executed, the rotating speed of a circulating pump is actively adjusted through the factor so as to change the flow speed of electrolyte, and feed-forward regulation and control of the gas holdup are achieved. Meanwhile, a gas phase rigidity coefficient is solved according to liquid level changes, a virtual damping domain is constructed, and PID integral and differential parameters are corrected in a self-adaptive mode; and finally, asymmetric variable universe fuzzy reasoning is executed, a hydrogen side universe is compressed through a source load gradient, an oxygen side driven dead zone threshold value is dynamically set, and a double-side valve instruction is output. According to the method, the problems of pressure lag and rigidity time varying under wide power fluctuation are effectively solved through flow velocity auxiliary adjustment and rigidity self-adaption strategies, and efficient and stable operation of the system is achieved.

A rod pump system is configured to provide efficient pumping operations in a downhole environment containing high gas content, using a non-locking actuator. The non-locking actuator assembly is configured to respond to high-gas conditions and automatically overcome a gas locked pump state thereby returning the system to normal pumping conditions. This system is appended to the traveling valve closed cage within a conventional rod pump in place of a conventional seat plug.

This invention provides a device and method for measuring the gas hydrate content. The device includes a sample container, a calibration container, a vacuum pump, a cooling device, a temperature sensor, and a vacuum gauge. The sample container, calibration container, and vacuum pump are connected to the same connecting pipe via different valves. The sample container, calibration container, and connecting pipe form a closed system. The temperature sensor and vacuum gauge are used to detect the temperature and pressure of the gas within the connecting pipe, respectively. The cooling device is used to regulate the temperature inside the sample container. Compared with existing technologies, this measuring device has a simple structure, low manufacturing cost, and is easy to promote. When using this device to measure gas hydrates, the operation process is simple, and the measurement results are not easily affected by the environment and experimental operations. It is suitable not only for on-site measurement of natural gas hydrates in exploration and extraction, and for measuring the gas hydrate content in sediment samples obtained from drilling, but also for measuring the gas hydrate content in laboratory synthetic gas hydrates.

The high-precision gas-containing eluent filling device comprises a dissolved gas storage tank, a dissolved gas tank, a pressure cylinder, a quantitative filling mechanism, a switching pipeline and an exhaust pipeline, the dissolved gas storage tank is connected with a gas outlet pipeline, the lower end of the dissolved gas tank is connected with a bottom communicating pipeline, the upper end of the dissolved gas tank is connected with a top communicating pipeline, and the gas outlet pipeline is connected with a gas outlet pipeline. The top communicating pipeline, the exhaust pipeline and the switching pipeline are connected through a first communicating device; the air outlet pipeline, the bottom communicating pipeline and the switching pipeline are connected through a second communicating device. By adopting a staged design of first dissolved gas saturation and then high-pressure driving filling, on one hand, eluent of each batch can reach the same saturated gas content through a stable gas-liquid contact environment in a gas dissolving stage; on the other hand, the filling stage is switched into a top gas inlet high-pressure driving mode, saturated eluent is pushed to enter the pressure cylinder and the quantitative filling mechanism, and interference of gas escape or secondary dissolution in the filling process is avoided.

The invention provides a deep coal bed gas pressure-maintaining coring free gas and adsorption gas content testing system and method.The testing system comprises a control system, a pressure maintaining barrel, a gas-liquid separation device, a drying and condensing device and a flow meter, and the pressure maintaining barrel, the gas-liquid separation device, the drying and condensing device and the flow meter are sequentially communicated through a pipeline; and a numerical control pressure gauge and an intelligent flow valve are mounted on the pipeline between the pressure maintaining barrel and the gas-liquid separation device. Free gas and adsorbed gas reach the original state of dynamic balance through constant temperature, then the intelligent flow valve is controlled to be opened and closed through the control system, when the pressure in the pressure maintaining barrel is lower than the reservoir pressure, the intelligent flow valve is closed, after the pressure in the pressure maintaining barrel rises to the reservoir pressure, the intelligent flow valve is opened, operation is circulated, and the pressure maintaining barrel is opened. After the pressure in the pressure maintaining barrel cannot rise to the reservoir pressure, free gas measurement is ended; in the whole process, the pressure maintaining barrel is decompressed by adopting small displacement, and the gas volume is measured by the flow meter, so that the on-site accurate gas content test of the deep coal bed gas with high gas content and high free gas ratio is realized.

This invention discloses a method for detecting the gas content in concrete, relating to the field of concrete gas content detection technology. The key technical points are: S1: Measure the total mass of the measuring cup lid in a dry state and in a state where the air chamber is filled with water, and obtain the mass m1 of the air chamber filled with water by the difference in mass before and after; S2: Measure the total mass of the measuring cup body in a dry state and in a state filled with water, and obtain the mass m3 of the measuring cup body filled with water by the difference in mass before and after; S3: Seal the measuring cup lid and body, and add water to the measuring cup body until water emerges from the vent valve; S4: Inflate the air chamber until the indicator shows the initial pressure P1, press the valve stem to balance the pressure between the air chamber and the measuring cup, and read the pressure value on the indicator, recording it as the zero-point gauge pressure P of the gas content. 零位 S5: The m1, m3, P1, and P obtained from S1-S4 零位 Substituting into the formula yields the mathematical model function. This method can simply, quickly, and accurately detect the gas content in concrete.

The invention discloses a wet desulphurization oxidation fan whole-process cooperative control method under deep peak regulation. The method comprises the following steps: firstly, acquiring and processing oxidation-reduction potential and fan operation parameters; calculating theoretical oxygen demand flow by using a self-adaptive algorithm; determining a final flow set value and adjusting fan output through arbitration in combination with anti-backflow minimum safe flow back calculation and pulse purging logic; and meanwhile, a gas holdup mapping model is established, false liquid levels caused by gas phase retention are calculated and eliminated, and real liquid levels are obtained to accurately control gypsum discharge. Through multivariable cooperation and decoupling control, the problems of chemical reaction lag, spray gun backflow blockage, liquid level measurement distortion and the like under the deep peak regulation working condition are effectively solved, and the chemical stability and mechanical reliability of the system are remarkably improved.

The utility model relates to the technical field of gas retention detection, and discloses a gas retention detection device which comprises a connecting plate, a fixed wall is fixedly mounted at the bottom of the connecting plate, a detector is fixedly mounted in front of the fixed wall, a gas pipe is fixedly mounted on the outer side of the detector, a connecting pipe is fixedly mounted on the right side of the detector, and a gas outlet is formed in the right side of the connecting pipe. And an alarm is fixedly mounted on the outer side of the connecting pipe. The fixed wall is fixedly mounted at the bottom of the connecting plate, the detectors are fixedly mounted in front of the fixed wall, and two connectors are respectively distributed in opposite directions, so that when the fan blades blow air into the connectors, the air pipes, the alarms and the air inlet cabins are different in direction, and the air pipes, the alarms, the air inlet cabins and the air inlet cabins are separated from each other. The blown-in gas belongs to different areas, and meanwhile, as the position of the kitchen is small, the gas at different positions of the kitchen can be detected, so that whether the gas at different positions leaks and is detained or not can be distinguished, and the effect of improving the detection efficiency is achieved.

The invention discloses a method for measuring the gas content in a die casting, and belongs to the technical field of material detection. The method comprises the following steps: loading a sample into the closed desorption cavity; vacuumizing and pre-degassing the cavity by using an oil-free high-vacuum acquisition module formed by connecting a molecular pump and a dry-type screw pump in series; stepwise heating is carried out on the sample through program temperature control; the released gas is guided into a differential pressure sensing metering unit through a low-thermal-conductivity aluminum oxide ceramic isolation tube; the unit comprises a reference cavity and a measuring cavity which are arranged in the same constant temperature device, and the gas inflow rate is dynamically represented by measuring the pressure difference between the two cavities; and based on the ideal gas state equation and a calculation model containing cavity thermal expansion compensation, calculating the amount of the gas substance in unit time in real time. The problems of poor precision and repeatability caused by oil pollution, thermal interference and discontinuous metering are solved, and continuous, dynamic and high-repeatability automatic measurement of the gas content in the die casting is realized.

The utility model belongs to the technical field of concrete detection, and particularly relates to a concrete gas content tester, which comprises a tank body, a cover and a fixing device, the cover is positioned on the upper surface of the tank body, and the upper surface of the cover is fixedly connected with a barometer; the fixing device is arranged on the surfaces of the tank body and the cover and comprises two placement plates, the two placement plates are located on the two sides of the tank body, the surfaces of the tank body and the cover are sleeved with two lantern rings, moving blocks are fixedly connected to the positions, close to the placement plates, of the bottom ends of the lantern rings, guide rods are fixedly connected to the inner surfaces of the placement plates, and a placement device is arranged on the surface of the tank body; the placing device comprises a fixing ring and a gasket, the fixing ring sleeves the surface of the tank body, the side wall of the fixing ring is fixedly connected with a base plate, and the gasket is located on the upper surface of the base plate; by arranging the whole device, the cover and the tank body can be conveniently fixed together, the situation that operation is tedious during traditional fixing operation is reduced, and therefore the mounting and dismounting efficiency is improved.

The present application relates to gas-liquid mixing reaction technical field, specifically to a kind of gas-liquid jet bubbling reactor, including reactor, distribution unit one, distribution unit two and adjusting unit.The size ratio between branch pipe one and reactor diameter is set in the present application, and the uniformity of gas bubble after pumping out is improved by increasing the number of branch pipe two and the uniform distribution of gas outlet hole, the gas holdup in unit area is improved, the problems of bubble coalescence effect and low shearing bubble efficiency are reduced, so as to improve the mass transfer efficiency between final gas and liquid;By setting the angle of gas outlet hole to 45 degrees, an inverted V-shaped pumping area is formed in the front-to-back direction, which improves the gas coverage range, i.e., the gas holdup in unit area, and the angle of gas outlet hole can be adjusted to adapt to different reaction volume requirements, and the gas outlet holes are distributed staggered, reducing the probability of coalescence reaction between bubbles generated by adjacent gas outlet holes, improving the uniformity of bubble distribution and the final mass transfer efficiency.

The present application belongs to a kind of gas rate measuring device and measuring method, for the gas-liquid two-phase flow cross section gas rate measuring method in existing round pipe, to the high requirement of round pipe material, for the gas-liquid disturbance intense flow type such as slug flow, stirring flow, the gas rate measuring precision of lower, it is difficult to realize the technical problem of industrial application, provide a kind of gas-liquid two-phase flow cross section gas rate measuring device and measuring method in round pipe, main pipeline is connected at the cross section to be measured of the measured round pipe at both ends, under the condition that not affecting the gas-liquid two-phase fluid working condition in round pipe, can carry out real-time measurement to the cross section gas rate of gas-liquid two-phase fluid at cross section to be measured.Main pipeline is provided with flow pattern adjustment device, different flow pattern gas-liquid two-phase fluid can be adjusted to the annular flow or gas column flow of gas-liquid two-phase uniform distribution, then through infrared measuring device, different flow pattern incoming gas-liquid two-phase flow cross section gas rate can be realized on-line measurement, suitable for the cross section gas rate measuring demand of different incoming flow pattern.

The utility model relates to a blast furnace cooling water return pipeline anti-air-resistance water spraying structure which comprises a water return tank and a gas collection release pipe which are vertically arranged up and down, the water return tank is communicated with the gas collection release pipe through a first water return pipe, a second water return pipe is arranged at the bottom of the gas collection release pipe, and a gas collection area is arranged at the top of the gas collection release pipe. The top of the gas collection area is communicated to the position above the water return groove through an exhaust pipe, the pipe diameter of the first water return pipe is the same as that of the second water return pipe, the pipe diameter of the gas collection release pipe is larger than that of the second water return pipe, and the speed of cooling water in the water return pipe is slowed down after the cooling water enters the gas collection release pipe. Gas converges in the gas collecting and releasing pipe, floats upwards and is exhausted through the exhaust pipe, the upper part of the exhaust pipe is provided with a U-shaped bent pipe which is communicated to the upper part of the water return tank, and cooling water brought out by the gas mass in the pipe flows into the water return tank through the U-shaped bent pipe; the water return tank is reasonable in structure, convenient to manufacture and good in using effect, the gas content in cooling water is effectively reduced, and the surrounding environment of the water return tank is improved.

The invention discloses a device and a method for detecting dissolved gas and gas content in transformer oil, belongs to the technical field of power equipment state monitoring, and solves the problem of how to improve the detection efficiency of the dissolved gas and the gas content in the transformer oil. The device comprises a valve, a peristaltic pump, a flowmeter, an oil-gas membrane separation module, a mass spectrometry detection module, a low-concentration calibration mixed gas steel cylinder and a high-concentration calibration mixed gas steel cylinder, according to the method, the content of the target gas in the gas phase is analyzed by using the mass spectrometer and combining peak interference calibration, and then the concentration of each dissolved gas in the oil sample is calculated through reverse inference of the Henry law, so that the detection efficiency is greatly improved, and rapid, online and accurate monitoring of the multiple dissolved gases and the gas content in the transformer oil is realized; the method is suitable for transformer fault diagnosis and sealing state evaluation.

The invention relates to the technical field of safety, environmental protection, energy conservation and water conservation, in particular to a multi-stage serial / parallel gas-liquid micro-reaction system and a method for preparing ammonium / alkali by using the multi-stage serial / parallel gas-liquid micro-reaction system. The system comprises a feeding area, a low-temperature mixing area, a flow divider, a reaction area and a discharging area which are sequentially connected, the feeding area comprises a plurality of feeding pumps and a Venturi type gas-liquid reactor, and the feeding pumps are connected with the Venturi type gas-liquid reactor through feeding runners; the low-temperature mixing area comprises one or more micro-reactions and is used for receiving the raw materials in the feeding area and uniformly mixing the raw materials at low temperature; the flow divider is used for distributing the uniformly mixed raw materials in the low-temperature mixing area to the reaction area for reaction to obtain a reaction product; and the discharge area receives the reaction product. And the low-temperature mixing area adopts a micro-channel structure, so that after the raw materials pass through the micro-channel of the low-temperature mixing area, the gas content of the waste salt saturated brine is greatly increased, and bubbles are fine and dense, thereby improving the absorption efficiency of the waste salt saturated brine, being high in atom utilization rate and greatly reducing the energy loss in the separation process.

A device and method for detecting the gas content of a two-phase flow of oil and gas using a halogen lamp light source are disclosed. The method includes the following steps: Step 1: Turn on the halogen lamp light source and inject the prepared two-phase flow of oil and gas to be tested into the pipeline through a three-way valve according to the pre-calibrated gas content. Step 2: Turn on the peristaltic pump to uniformly fill the pipeline with the two-phase flow of oil and gas to be tested, then turn off the peristaltic pump. A first collimating lens is connected to the halogen lamp light source via a first optical fiber to receive the incident light emitted by the halogen lamp light source. A spectrometer is connected to the second collimating lens via a second optical fiber to receive the outgoing light of the two-phase flow of oil and gas passing through the flow cell. The spectrometer records the spectral information in a computer. Step 3: Repeat steps 1 and 2 until the spectral information of all calibrated gas contents is obtained. Step 4: Establish a prediction model using the spectral information. Specifically, a principal component regression (PCR) model for detecting the gas content of the two-phase flow of oil and gas is established to predict the gas content of the two-phase flow.

This invention discloses a drilling fluid degassing efficiency determination device and method based on a multi-stage degassing-index cumulative first-efficiency method, belonging to the field of oil and gas exploration. The device includes a circulation tank system, a stirring system, and a suction pump system. The circulation tank system includes at least two circulation tanks for alternately storing and transporting gas-bearing drilling fluid. The circulation tank system and the stirring system are intermittently connected via a first valve group and another intermittently connected via a second valve group. The exhaust port of the stirring tank is connected to a chromatograph via a gas pipeline. The suction pump system includes a suction pump, which is connected to the circulation tank via a fifth valve. The method uses experimentally measured multi-stage degassing gas component content data to perform exponential curve fitting to determine the total gas content of the drilling fluid. The degassing efficiency of the degasser on the drilling fluid is determined by the ratio of the gas components degassed in the first stage to the total gas content. This invention can accurately determine the drilling fluid degassing efficiency, providing a basis for accurately evaluating formation gas content.

The utility model discloses an automatic air exhaust quantitative packaging machine for calomel, which comprises a rack, a double-screw feeder is fixedly mounted at the top of the rack, a blanking pipe is fixedly mounted on the right side of the rack and is communicated with a discharge port of the double-screw feeder, a feeding stop valve is arranged at the top of the right side of the blanking pipe, and the feeding stop valve is communicated with the double-screw feeder. A pneumatic bag clamping device is installed on the surface of the discharging pipe, a scale frame fixedly connected with the rack is arranged under the discharging pipe, a sliding air pipe is arranged at the top of the discharging pipe in a penetrating mode, and the bottom end of the air pipe penetrates to the bottom of the discharging pipe and is fixedly connected with a nanometer air exhaust rod. According to the powder filling machine, the machine frame, the double-spiral feeding machine and the discharging pipe are used in cooperation, powder is filled into an inner cavity of a packaging bag, meanwhile, the air pipe, the nanometer air exhaust rod and the air exhaust box are used in cooperation, air among the powder is exhausted, the air content of materials is reduced, and the purposes of increasing the stacking density of the powder and achieving accurate specification filling of the powder can be achieved.

The utility model provides an improved spiral push type valve bag packaging machine which comprises a material pushing mechanism which pushes materials in a material bin to a packaging table, a first material pushing assembly, a second material pushing assembly and a third material pushing assembly. The first pushing assembly comprises a first stirring shaft and a first blade connected with the first stirring shaft; the second material pushing assembly is arranged between the second material pushing assembly and the packaging table, the second material pushing assembly comprises a second stirring shaft and second blades connected with the second stirring shaft, the second blades are tooth-shaped blades, the distance between the second blades is smaller than that between the first blades, and the second stirring shaft is connected with the second stirring shaft. The closer the distance between the second blades is to the packaging table, the smaller the distance between the second blades is. The solid-gas mixing state of materials can be broken through, solid-gas separation is accelerated, the proportion of solid materials entering a packaging bag is increased, the gas content of powder is effectively reduced, and the filling rate of packaging is increased.

The invention relates to the technical field of gas-liquid mixing reaction, in particular to a gas-liquid jet bubbling reactor which comprises a reactor, a distribution unit I, a distribution unit II and an adjusting unit. The size ratio of the diameter of the first branch pipe to the diameter of the reactor is set, the number of the second branch pipes is increased, and the air outlet holes are evenly distributed, so that the uniformity degree after air bubbles are pumped out is improved, the air content in unit area is increased, and the problems that the air bubble coalescence effect occurs and the air bubble shearing efficiency is too low are solved; therefore, the final mass transfer efficiency between gas and liquid is improved; the angle of the air outlet holes is set to be 45 degrees, an inverted-V-shaped air pumping area is formed from front to back, the gas phase coverage range is enlarged, namely, the gas content in unit area is increased, the angle of the air outlet holes is adjustable, different reaction dose requirements can be met conveniently, the air outlet holes are distributed in a staggered mode, and the gas pumping efficiency is improved. The probability of coalescence reaction between bubbles generated by adjacent air outlet holes is reduced, the bubble distribution uniformity is improved, and the final mass transfer efficiency is improved.

The present application belongs to the technical field of gas invasion monitoring of deepwater oil and gas field drilling, and particularly relates to a deepwater drilling gas invasion monitoring method. The monitoring method extracts the nonlinear dynamic characteristics of ultrasonic signals through multi-scale fuzzy divergence entropy, and obtains the gas holdup value based on the support vector machine model trained by samples, thereby realizing quantitative monitoring and early warning of the small change of gas holdup. Compared with the existing deepwater drilling gas invasion monitoring method, the present method has significant advantages in monitoring accuracy, dynamic response characteristics and anti-noise interference performance, and can realize accurate identification and real-time quantitative monitoring of early weak gas invasion signal. A deepwater drilling gas invasion monitoring method comprises the following steps: collecting ultrasonic echo signals of gas-liquid two-phase flow; extracting multi-scale fuzzy divergence entropy values in the ultrasonic echo signals; inputting the feature vectors in the multi-scale fuzzy divergence entropy values into the trained support vector machine classification model to obtain the gas holdup recognition result.

The application provides a full-diameter core gas content measuring device and a measuring method. The measuring device comprises a gas pressurizing system, a liquid nitrogen freezing system, a vibration crushing system, a temperature control system and a gas content measuring system. The gas content measuring system comprises a desorption tank and a gas content measuring instrument connected with each other. The vibration crushing system comprises a vibration exciter and steel balls. The vibration exciter can drive the desorption tank to move. The steel balls are located in the interior of the desorption tank. The temperature control system is used for controlling the temperature of the desorption tank. The liquid nitrogen freezing system comprises a liquid nitrogen tank connected with the desorption tank. The gas pressurizing system comprises a gas cylinder and a booster pump. The gas cylinder, the booster pump and the desorption tank are connected in sequence. The application also provides a full-diameter core gas content measuring method, which is carried out in the above measuring device. The measuring device provided by the application can crush the sample in a sealed environment, reduce gas loss, has high crushing efficiency, requires short time, and can realize on-site measurement of the gas content.

The invention relates to an optical fiber sensing probe and system for synchronously measuring the flow velocity and the gas holdup of an oil-gas-water multiphase flow and a phase state distribution method, the sensing probe is provided with a sensing structure in a capillary tube, the sensing structure is formed by welding one end of a single-mode optical fiber and one end of a doped optical fiber, and the other end of the doped optical fiber forms a conical section through tapering; the conical section extends out of one end of the capillary tube, a Bragg grating is inscribed on the fiber core from the root, the conical tip of the conical section is used for identifying the phase state of the fluid based on the refractive index difference of different phase states, the holdup is obtained by combining a time statistical method, and the Bragg grating is based on the photothermal effect of the doped fiber. The flow velocity is measured by using the relationship between the flow velocity and wavelength drift, and the flow velocity measurement of pipeline fluid and the gas holdup measurement of multiphase flow are realized by arranging a plurality of sensing probes in the pipeline, and the section distribution characteristic of the flow pattern is reconstructed. The device has the advantages of small size, electromagnetic interference resistance, high temperature resistance, reusability and the like, and can be applied to pipeline flow velocity measurement and flow pattern identification.

This invention discloses a method and system for simulating the pressure of an arc fault inside an oil-immersed transformer tank, belonging to the field of power equipment safety protection technology. The method includes: establishing a geometric simulation model of the oil-immersed transformer tank and dividing the geometric simulation model into a network model; establishing a gas compression model based on the network model, and establishing a gas generation model by combining the relationship between gas production and arc energy, and the gas content in the oil during the operation of the oil-immersed transformer; establishing an energy transfer model based on the gas generation model and the relationship between arc energy and arc discharge time; and obtaining a pressure change cloud map inside the tank based on the energy transfer model and a transient pressure acoustic model. This invention overcomes the technical problem of existing technologies that struggle to improve the efficiency of pressure simulation while ensuring its accuracy.

This invention relates to the field of petrochemical process enhancement technology, specifically to a gas retention device for oil fields and its usage method. A casing assembly and a gas retention mechanism are arranged on the surface containing an oil layer. The casing assembly is vertically and annularly installed inside the oil well on the surface, and the gas retention mechanism is fitted inside the casing assembly, enabling stable oil extraction within the well. The gas retention mechanism has a serrated structure, and a tooth angle offset mechanism is mounted on the serrated structure. The tooth angle offset mechanism is driven by a control cabinet to deflect the angle of the serrated structure, achieving optimal elastic stress changes for different types of oil, thereby minimizing the rising speed of air bubbles. Simultaneously, when extracting crude oil from the oil layer, large air bubbles within the crude oil are broken into smaller bubbles, reducing the incidence of blowout accidents and improving the safety of oil extraction operations.

The utility model discloses a concrete gas content tester, and belongs to the field of concrete detection, the concrete gas content tester comprises a bowl body, a bowl cover is arranged above the bowl body, a stirrer is arranged in the bowl body, and a pressing assembly is arranged on the outer side of the bowl body; the pressing assembly comprises a first supporting plate, a connecting block, a first connecting frame, a hydraulic cylinder, a second connecting frame, a triangular plate, a limiting plate, a first supporting frame, a second supporting frame, a sliding rod, a sliding groove, a second supporting plate and a fixing frame. The top of the first supporting plate is fixedly connected with the bottom of a connecting block. The hydraulic cylinder moves to drive the second connecting frame to move upwards, the second connecting frame moves upwards to drive the sliding rod to slide in the sliding groove, the sliding rod moves up and down to drive the bowl cover at the bottom to move up and down on the top of the bowl body, and then the bowl cover can be rapidly and simply disassembled.

The utility model discloses an automatic sparkling water machine which is characterized in that a low-liquid-level sensor sends out a first electric signal to a water outlet valve and an air inlet valve when the lowest liquid level is not detected; the high liquid level sensor detects the highest liquid level and sends a second electric signal to the booster pump; the pressure sensor sends a third electric signal to the booster pump and the air inlet valve when detecting that the pressure value is greater than first specified pressure and sends a fourth electric signal to the air inlet valve when detecting that the pressure value is smaller than second specified pressure; the booster pump receives the second electric signal to stop conveying ice water and receives the third electric signal to start conveying ice water; the water outlet valve is arranged on the water outlet pipeline outside the box body and closes water outlet after receiving the first electric signal; the air inlet valve is arranged on the air inlet pipeline, is closed after receiving the third electric signal and is opened after receiving the fourth electric signal. According to the utility model, bubble water with different air content concentrations can be automatically provided, the taste of the bubble water can be ensured, and the user experience is improved.

The invention discloses online detection equipment for water and gas content in transformer oil, which belongs to the technical field of transformer detection and comprises a transformer oil tank, a mounting plate is arranged at the outer end of the oil tank, an oil pump, a pre-filtering unit and a vortex separation unit are mounted on the mounting plate, a sensing control unit is mounted on the vortex separation unit, and a hollow probe is arranged on the inner side of the vortex separation unit. The pre-filtering unit comprises a filtering container, a coarse filtering layer, a fine filtering layer and a pre-separation pressure control disc, the vortex separation unit comprises a detection cavity, a conical oil outlet chamber and a tangential oil inlet pipe, the sensing control unit comprises an electromagnet and a moisture and gas detection sensor, and the hollow probe comprises a reducing hollow sleeve, a magnetic piston and a jet micro-channel. According to the invention, rapid and accurate online detection of moisture and gas can be realized through filtering and impurity removal, active gassing and vortex separation and concentration in cooperation with active adsorption of a gas sample by a magnetic piston and purging of a sensor, and the device is rapid in response, high in precision and strong in stability, is adaptive to the requirements of trace detection of transformer oil, and provides support for safe operation and maintenance of a transformer.

The invention discloses recycling equipment based on plastic product production, and relates to the technical field of foam material reutilization, the recycling equipment comprises a control supporting mechanism, and further comprises a melting mechanism which is installed on the control supporting mechanism and comprises a charging barrel, one end of the charging barrel is communicated with an L-shaped pipe, a pressure sensor is installed on the wall of the L-shaped pipe, and the pressure sensor is connected with the control supporting mechanism; an electric valve is mounted at the discharging end of the L-shaped pipe; the thickness and density control mechanism is installed to apply pressure to the molten material so that the molten material can be formed into a thin plate, the gas content of the material is reduced, the density is improved, the size is reduced, and therefore the transportation efficiency is improved; and compared with stacking into blocks, the extruded plate is more convenient for subsequent crushed material recycling and reusing, and the service life of the crushing machine is prolonged.