5 results about "Nitrous oxide gas" patented technology

The present invention aims to provide a low-cost NDIR greenhouse gas monitoring device that combines a rotary multi-gas cell system and an NDIR sensor system for measuring nitrous oxide (N2O) gas at multiple locations in a short time. [Solution] The NDIR greenhouse gas monitoring device is characterized by comprising a rotary multiple gas cell system having two or more gas cells, gas cell holders that fix both ends of each gas cell, a central axis that serves as the axis of rotation of the gas cell holder, and a motor connected to the central axis that rotates the gas cell holder by rotating the central axis, and an NDIR sensor system having an NDIR light source unit, an NDIR detector unit, and a controller that controls the output of the motor that rotates the central axis in the rotary multiple gas cell system.

The utility model belongs to the technical field of culture device, especially the nitrous oxide gas collection device with luer quick -connect acetylene quantitative and high seal culture structure, the utility model discloses an acetylene supply module, soil culture module and gas collection module, the acetylene supply module includes the acetylene -filled steel bottle, is connected with the micro pressure reducing valve on the steel bottle, and the micro pressure reducing valve is connected with the luer internal thread joint through the pipeline, and the luer internal thread joint is detachably connected with the syringe, the soil culture module includes the culture cavity, and the culture cavity is equipped with the soil, and is connected with the double -way stop valve on the culture cavity, and the double -way stop valve is connected with silica gel gas injection pipe, and the silica gel gas injection pipe is inserted into the culture cavity, and the other end of double -way stop valve is connected with the luer external thread joint for detachably connecting the syringe, the utility model provides a nitrous oxide gas collection device with luer quick -connect acetylene quantitative and high seal culture structure.

Gas decomposition catalysts and methods and purifier systems for decomposing nitrous oxide (N₂O) gas using them. The gas decomposition catalyst comprises: a perovskite-based oxide host material represented by Formula 1, wherein distinct B' and B'' elements are each doped into B sites; and one or more B' element protrusions originating from a portion or all of the B' element on the surface of the perovskite-based oxide host material, wherein the one or more B' element protrusions have a shape in which a portion of one particle is fixed within the perovskite-based oxide host material and another portion of the particle protrudes from the surface of the perovskite-based oxide host material. In Formula 1, A, B, B', B'', x, y, and z are as described herein.

A gas decomposition catalyst and a method and scrubber system for decomposing nitrous oxide gas by using the gas decomposition catalyst. The gas decomposition catalyst includes a perovskite-based oxide host material represented by Formula 1, in which a B′ element and a B″ element which are different from each other are each doped into a B site, and one or more B′ element protrusion particles derived from a portion or all of the B′ element on a surface of the perovskite-based oxide host material, where the one or more B′ element protrusion particles have a shape in which a portion of one particle is fixed inside the perovskite-based oxide host material and another portion of the one particle protrudes from the surface of the perovskite-based oxide host material:In Formula 1, A, B, B′, B″, x, y, and z are as described herein.

The utility model discloses a kind of early warning systems of monitoring depth denitrification equipment N2O generation, including denitrification tower, the middle part of the denitrification tower is fixedly connected with clamping block, the side wall of the clamping block is equipped with siren, cooling cavity is established in the middle part of the inside of the clamping block, the inside of the cooling cavity is provided with cylinder, the side wall of the cylinder is penetrated with first air inlet pipe, the other side wall of the cylinder is penetrated with second air inlet pipe, the top of the inside of the cylinder is equipped with negative pressure fan, the bottom of the inside of the cylinder is equipped with nitrous oxide sensor, the bottom end of the cylinder is penetrated with air outlet pipe. The utility model is provided with a series of structures, thereby reducing the high temperature impact received in early warning system, reduce the probability of early warning system damage due to high temperature impact, to reduce the influence caused to early warning system service life, to realize the pre-removal of detected nitrous oxide gas, improve subsequent nitrous oxide removal effect.