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49 results about "Vapor absorption" patented technology

Method for improving sensitivity for detecting NO3 in atmosphere by deducting vapor interference

The invention discloses a method for improving the sensitivity for detecting NO3 in the atmosphere by deducting vapor interference. The method comprises the following steps: measuring a spectrum, and demarcating a lens reflectivity; calculating the Rayleigh scattering extinction of nitrogen; calculating a high-resolution vapor absorption cross section; facilitating high resolution of the measured spectrum, the lens reflectivity and the nitrogen Rayleigh scattering extinction; measuring the concentration of vapor in a cavity; calculating a high-resolution vapor absorption spectrum; calculating a low-resolution vapor absorption spectrum; calculating a low-resolution vapor absorption cross section; fitting the spectrum; and judging whether the iteration is ended or not. The vapor absorption cross section is calculated in real time according to the pressure and temperature in an IBBCEAS (incoherent broad-band cavity-enhanced absorption spectroscopy) optical resonant cavity, and the real vapor absorption cross section is gradually obtained by adopting an iteration calculation method, so that a vapor absorption structure can be effectively deducted from the absorption spectrum in the subsequent spectrum inversion. Compared with an existing method, the sensitivity of the IBBCEAS technology for detecting the NO3 in the atmosphere can be greatly improved.
Owner:ANHUI UNIV OF SCI & TECH

Method and device for purifying liquid ammonia decomposition gas

The invention provides a device for purifying liquid ammonia decomposition gas, and the device comprises a liquid ammonia storage tank, a vaporizing chamber, an ammonia decomposition furnace, a purifier, a cyclone separator, and a drier, wherein the vaporizing chamber comprises a liquid ammonia evaporator and a buffering storage tank; the ammonia decomposition furnace comprises a preheater and a catalytic decomposer; the liquid ammonia storage tank is connected with the liquid ammonia evaporator; the liquid ammonia evaporator is connected with the buffering storage tank, and then orderly connected with the preheater, the catalytic decomposer, the purifier, the cyclone separator and the drier; the drier comprises a water-vapor absorption layer and an organic adsorption layer; liquid ammonia is vaporized and introduced into the ammonia decomposition device to obtain hydrogen nitrogen mixed gas containing little residual ammonia and impurities such as sulfur; the mixed gas is introduced into an alkaline solution through a gas distribution pipe to absorb impurities such as sulfur and NH3 in the mixed gas; the purified gas is separated, and the separated gas contains a few liquid drops; the liquid drops [S1] return to the purifier for circular purification; the separated gas is dried by the drier to obtain high-purity hydrogen nitrogen mixed gas.
Owner:GEM CO LTD

Waterproof coal mine methane detection instrument

The invention provides a waterproof coal mine methane detection instrument and relates to the field of coal mine methane detection instruments. The waterproof coal mine methane detection instrument includes a casing, the left side of the casing is fixedly connected with an insertion rod, the inner bottom wall of the casing is fixedly connected with a bottom plate, and the upper surface of the bottom plate is lapped with an instrument body. The upper surface of the bottom plate is provided with a chute, and the lower surface of the instrument body is fixedly connected with a wheel bar inside the chute, and the end of the wheel bar away from the instrument body is fixedly connected with a wheel shaft. The waterproof coal mine methane detection instrument, through the first isolation layer and the second isolation layer respectively arranged inside the first opening and the second opening, prevents the gravel from falling into the inside of the shell when the mine is mining, and passes through the The first sponge block cooperates with the second sponge block to achieve the effect of absorbing moist water vapor and water droplets, and through the contraction function of the spring, the effect of driving the extrusion rod to squeeze the second sponge block to the right is achieved.
Owner:镇江市南方工矿器材有限公司

Controllable-humidity vapor-heating/humidifying leather-lapping cloth bonding processing apparatus

The invention discloses a controllable-humidity vapor-heating/humidifying leather-lapping cloth bonding processing apparatus which comprises a dehumidifying tank, a wheel support, a motor fixing support, a vapor generator, a working side plate and a working flat plate, wherein the bottom of the dehumidifying tank is provided with the motor fixing support through a bolt; the motor fixing support is provided with a motor; the motor is fixedly connected with a blower; the blower is provided with a water vapor absorption conveyer pipe; the tail end of the water vapor absorption conveyer pipe is connected with a vapor absorption coil; the upper part of the dehumidifying tank is provided with the working flat plate; the working flat plate is provided with the working side plate; the working side plate is provided with driving rollers; the left side of the dehumidifying tank is provided with a dehumidifying port; the dehumidifying port is used for communicating the air with the inside of the blower; and the right side of the dehumidifying tank is provided with a vapor generator support plate. The apparatus can perform vapor humidifying and heating on leather while effectively controlling the water content of the leather surface, is simple in structure and convenient to operate, and has the advantages of high efficiency and lower investment cost.
Owner:ZHEJIANG GLM GARMENT +1

Hydrophobic moisture-absorbing fabric coating and preparation method thereof

ActiveCN110820329AExhibit hydrophobic propertiesExcellent hydrophobic and hygroscopic propertiesLiquid repellent fibresHydrophilic monomerPolymer science
The invention relates to a hydrophobic moisture-absorbing fabric coating and a preparation method thereof. The preparation method includes that after mixing of hydrophilic monomers, hydrophobic monomers and cross-linking agents, polymerization and cross linking are triggered on the fabric surface to obtain the hydrophobic moisture-absorbing fabric coating, wherein the carbon chain length of the hydrophobic monomers is larger than that of the hydrophilic monomers, and the mass of the hydrophobic monomers accounts for 65%-95% of the total mass of the hydrophilic monomers, the hydrophobic monomers and the cross-linking agents. The prepared hydrophobic moisture-absorbing fabric coating is in a copolymerized reticular structure mainly formed by hydrophilic chain segments (containing hydrophilicgroups), hydrophobic chain segments (containing hydrophobic groups) and the cross-linking agents, the hydrophobic chain segments play a role in liquid drop repelling, and the hydrophilic groups playa role in gaseous vapor absorption. The preparation method is simple, feasible and low in cost, the prepared fabric coating has great moisture absorbing and hydrophobic performances, the fabric styleis unchanged after base material modification with the coating, and a promising application prospect is achieved.
Owner:SUZHOU UNIV

Transformer respirator

The invention relates to a transformer respirator, which comprises a silica gel tank, an oil cup and a flange, wherein the flange is arranged in the center of the top of the silica gel tank, the silica gel tank consists of a glass tank body, an upper end cover, a lower end cover, long screw bolts and sealing rings, the upper end cover and the lower end cover are connected onto an end opening of the glass tank body through screw bolts, the long screw bolts are connected between the upper end cover and the lower end cover, the sealing rings are arranged between the tank body and the upper and lower end covers, and an exhaust pipe arranged at the bottom of the lower end cover is inserted in the oil cup. The transformer respirator is characterized in that a silica gel filling opening and a silica gel discharging opening are respectively formed in the upper end cover and the lower end cover, sealing covers are arranged on the silica gel filling opening and the silica gel discharging opening, the long screw bolts are positioned outside the glass tank body, the outer edge of the lower end cover is provided with a downwards extending water blocking edge, and the height of the oil cup is 80mm to 100mm. The operation is convenient, and the original sealing structure cannot be destroyed; the problem of air leakage caused by poor sealing between the long screw bolts and the tank body since the long screw bolts are positioned in the tank body is solved; snow water in winter is prevented from flowing into the oil cup from the outer wall of the silica gel tank along the bottom surface of the lower end cover; the loss of aqueous vapor absorption effect due to oil film forming through the contact of oil and silica gel particles is prevented.
Owner:STATE GRID CORP OF CHINA +1

Sensor-based gas-phase molecular absorption spectrograph applying water seepage absorption drying device

The invention discloses a gas-phase molecular absorption spectrograph applying a water seepage absorption drying device. The gas-phase molecular absorption spectrograph comprises a fluid circuit module, a gas circuit module, a detection module and a control module, wherein the control module is used for sending control signals to the fluid circuit module, the gas circuit module and the detection module and also can receive feedback data signals from the fluid circuit module, the gas circuit module and the detection module; the detection module comprises a sensor and a detector; the water seepage absorption drying device is arranged in front of the sensor; and the water seepage absorption drying device is a Nafion tube. The gas-phase molecular absorption spectrograph disclosed by the invention can effectively remove water and alcohols interfering detection; driving force of a Nafion material is from a vapor pressure gradient inside and outside the tube but not pressure difference or temperature difference, so that the achieved dehumidifying effect is far better than that of an existing condensation dehumidification scheme; and meanwhile, a phase change factor does not exist in a vapor absorption process, a dehumidification process does not cause extra influence on a gas delivery environment, and the condition that gas is re-dissolved in condensation or a pipeline is blocked can be avoided.
Owner:BEIJING ORIENTAL ANGEL SCI & TECH

Method for rapidly detecting storage quality of aseptically packaged sea cucumber protein peptide powder based on DVS and GC-IMS technologies

The invention discloses a method for rapidly detecting storage quality of aseptically packaged sea cucumber protein peptide powder based on DVS and GC-IMS technologies. The sea cucumber protein peptide powder is used as the raw material, and the DVS (dynamic vapor absorption method) and GC-IMS (gas chromatography-ionic migration spectrometry) are comprehensively used for detecting and identifying.A moisture absorption kinetic curve and a moisture absorption isotherm of the sea cucumber protein peptide powder can be acquired through a DVS system, and the volatile substances are separated through the GC-IMS, the sea cucumber protein peptide powder after the separation of the volatile substances is finished enters an IMS unit to be measured twice, thereby successfully constructing a flavor fingerprint of the sea cucumber protein peptide powder. Through the method disclosed by the invention, the sea cucumber protein peptide powder packaged and stored under different conditions can be distinguished; the method can be applied to the quality grading and shelf life research of the sea cucumber protein peptide powder, has the features of being significant, less in raw material consumption,simple in operation, rapid in detection speed and high in accuracy.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Activated carbon adsorption device for treating waste gas

The invention discloses an activated carbon adsorption device for treating waste gas. The activated carbon adsorption device comprises an air inlet, wherein a shell is arranged at one end of the air inlet, a water-vapor absorption device is arranged in the shell, activated carbon is arranged on one side of the water-vapor absorption device, a collection box is arranged below the activated carbon,an air outlet is formed in one end of the shell, a social resource bracket is arranged on one side of the air outlet, a fixed frame is arranged at one side of the activated carbon, and a support frameis arranged below the collection box. By utilizing the designed fixed frame and collection box, activated carbon is blocked by impurities in waste gas after being used, the adsorption device can normally work after the activated carbon is replaced, and the activated carbon can be very convenient to be simply and rapidly replaced by virtue of the fixed frame and an active carbon replacing door, sothat the situation that the activated carbon is damaged in a replacement process is prevented; and furthermore, by utilizing the collection box, the situation that the activated carbon falls into theadsorption device in the use and replacement processes can be prevented.
Owner:泰州市泰港动力机械有限公司
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