16 results about "Oxygen analyzer" patented technology

The application provides a high-temperature pressure swing adsorption pure oxygen production equipment, which comprises a filter, an inlet of the filter is connected with an air pipeline, an outlet of the filter is connected with an inlet of a blower, an outlet of the blower is connected with an inlet of an air buffer tank, the blower is connected with a frequency converter, an outlet of the air buffer tank is connected with a first inlet of an adsorption tower, a second inlet of the adsorption tower is connected with an outlet of an oxygen back flushing tank, an outlet of the adsorption tower is connected with an inlet of a vacuum pump, an inlet of the oxygen back flushing tank is connected with an outlet of an oxygen buffer tank, the oxygen buffer tank is connected with an oxygen analyzer or a chromatograph and an oxygen flow meter, an outlet of the oxygen buffer tank is connected with an air outlet pipeline, and an outlet of the vacuum pump is connected with the air outlet pipeline. The application uses the principle of pressure swing adsorption, proposes a novel pressure swing adsorption process and equipment, breaks through the limitation of product oxygen purity, and obtains oxygen with a purity of ≥99.5%, thereby expanding a new application field of the pressure swing adsorption oxygen production process.

This invention provides a portable oxygen analyzer for detecting carbon dioxide concentration and its usage method, relating to the field of oxygen analyzer technology. The portable oxygen analyzer includes a middle frame, a rear cover fixedly mounted on one side of the middle frame, a control board fixedly mounted in the middle of the rear cover surface, an oxygen sensor cover fixedly mounted on the rear cover surface, and an oxygen sensor fixedly mounted inside the oxygen sensor cover. The control board includes a power management module connected to a multi-power supply module and a charging management module, and is also connected to a main control processing module. By integrating dual-parameter detection of oxygen and carbon dioxide, environmental temperature and pressure compensation, Bluetooth and serial communication linkage control, and multi-power supply functions, real-time monitoring and closed-loop regulation of air quality in oxygen-enriched spaces are achieved, effectively solving the problems of traditional oxygen analyzers having limited functionality, inability to network linkage, and limited power supply methods.

This invention relates to a low-temperature oxidative roasting pretreatment method and supporting equipment for gold-bearing pyrite. The method includes: raw material preparation; humidification and cooling; low-temperature oxygen-enriched roasting; and roasted sand collection. The supporting equipment includes a batching bin, the bin outlet of which is connected to the feed hopper inlet via an elevator, and the feed hopper outlet connected to the fluidized bed furnace inlet via a conveyor belt. A spraying device is mounted on the conveyor belt. Atomized temperature-regulating and water-replenishing device and a temperature sensor are installed in the upper and middle combustion spaces of the fluidized bed furnace. An online oxygen analyzer is installed on the flue gas duct at the top of the fluidized bed furnace, and is sequentially connected to a waste heat boiler, a cyclone dust collector, an electrostatic precipitator, and an acid production system. The air inlet at the bottom of the fluidized bed furnace is connected to a blower via an air duct. This invention achieves full oxidation of gold-bearing pyrite under low-temperature, oxygen-enriched, and low-gas-velocity conditions, resulting in loose and porous roasted sand and a significantly increased gold and silver exposure rate, providing important technical support for the comprehensive utilization of the valuable components of gold-bearing pyrite.

The utility model discloses a kind of nitrogen generation systems with micro-oxygen analyzer protection function, including purification device, pure nitrogen storage tank, micro-oxygen analyzer, third pipeline and fourth pipeline are connected in parallel at the gas outlet of the purification device, fourth control valve is provided on the fourth pipeline, the other side of fourth control valve is empty, third control valve is provided on the third pipeline, fifth pipeline, sixth pipeline, seventh pipeline, tenth pipeline are connected in parallel in the rear of third control valve, seventh control valve is provided on the seventh pipeline, the other side of seventh control valve is empty via throttle valve, the inlet of the fifth pipeline with pure nitrogen storage tank is communicated, fifth control valve is provided on the fifth pipeline, micro-oxygen analyzer is installed at the end of the tenth pipeline, the sixth pipeline is communicated with pure nitrogen storage tank, sixth control valve is provided on the sixth pipeline.This nitrogen generation system is configured with micro-oxygen analyzer protection device, and the service life of micro-oxygen analyzer is obviously prolonged.

This invention provides a filtration and flow guiding structure for an oxygen analyzer, including a filtration assembly. The filtration assembly comprises a filter box, U-shaped slots, a mounting plate, filter holes, a coarse filter, a fine filter, a limiting ring, an inlet pipe, an outlet pipe, a mounting groove, and a limiting component. U-shaped slots are provided on both sides of the upper surface of the filter box, and the mounting plate is slidably connected to the inner sidewalls of both U-shaped slots. This invention utilizes a two-stage filtration structure with coarse and fine filters. The coarse filter intercepts larger particles, while the fine filter intercepts smaller particles. The limiting ring secures the filter, effectively improving the filtration effect and preventing sensor clogging that could reduce measurement accuracy. The limiting component, in conjunction with a push-out spring, allows for quick filter removal and replacement during installation by automatically engaging the limiting hole with the beveled part of the limiting block. During disassembly, pulling the lever releases the limiting mechanism, and the push-out spring helps eject the mounting plate, enabling rapid filter removal and replacement, facilitating cleaning and replacement, and improving detection efficiency.

This utility model discloses an anti-clogging oxygen analyzer, including an analyzer with multiple fixed blocks internally connected to it. Each fixed block has a first limiting groove and a second limiting groove. A sliding block is slidably connected internally to each fixed block, with two springs fixedly connected to one end and a telescopic rod fixedly connected to the other end. A collar is fixedly connected externally to the sliding block. Through this structure, the rotation of a second gear drives an internal rotating rod, causing a scraper outside the rotating rod to rotate and clean dust adhering to the dustproof mesh. This ensures that gas can enter the analyzer normally, allowing the sensor to accurately detect oxygen concentration, guaranteeing the accuracy of measurement results, reducing the workload of components such as the air pump, decreasing wear, and extending their service life.

A kind of control method of low-oxygen safe and environmentally-friendly operation of atmospheric and vacuum heating furnace, comprising: obtaining CO value in flue gas by online CO analyzer installed on flue; obtaining NOx value and SO2 value in flue gas by online flue gas analyzer installed on flue; obtaining O2 value in flue gas by online oxygen analyzer installed on flue; taking CO value and O2 value as input values, determining blast fan outlet damper control amount according to preset override control strategy; controlling blast fan outlet damper valve opening degree according to blast fan outlet damper control amount; taking NOx value and SO2 value as input values, determining blast fan outlet damper valve position limit value according to preset alarm control.The present application can achieve rapid and accurate optimization control of blast fan outlet damper, to realize safe operation of heating furnace under low-oxygen environment.

This invention discloses a system for closed-loop circulation and purification recovery of inert gases, belonging to the field of industrial gas treatment technology. It includes a treatment chamber, outside which, via a return pipe, are sequentially connected a pretreatment and solvent recovery component for gas filtration and solvent classification and recovery, and a purification and power component for purifying the inert gas. Leakage diagnostic components are installed at the inlet and outlet of the treatment chamber. An online oxygen analyzer is installed inside the treatment chamber, and a system controller is located outside the chamber. This invention integrates and optimizes the entire system architecture through the pretreatment and solvent recovery component, purification and power component, and system controller, reducing energy and nitrogen consumption. It lowers operating costs through adaptive adjustment of operating strategies, and ensures the inherent safety of the process and equipment through multiple safeguards such as SIS linkage, safety bypass, and backoff strategies. Furthermore, it can effectively couple with external energy sources such as process waste heat, improving energy utilization.

This utility model discloses an intelligent dissolved oxygen regulation device for a biological treatment tank, relating to the field of wastewater treatment technology. Specifically, it includes a water tank, within which an aeration disc and a dissolved oxygen analyzer are fixedly installed. A blower is located outside the water tank, and a frequency converter and controller are located outside the blower. An air supply pipe is fixedly installed at the output end of the blower, and a four-way fitting is fixedly connected to one end of the air supply pipe. An air plate is fixedly installed inside the aeration disc, and several sealing blocks are installed inside the air plate. Several fixing brackets are fixedly installed at the bottom of the air plate. This utility model uses a preset standard dissolved oxygen value and a dissolved oxygen analyzer to monitor the dissolved oxygen content in the wastewater. When the measured value at a certain time does not meet the preset standard value, the controller increases or decreases the blower's airflow and the frequency converter's speed, thereby adjusting the dissolved oxygen value in the water tank in a timely manner, facilitating stable wastewater treatment.

The utility model discloses an integrated oxygen content analyzer, specifically related to oxygen content analyzer technical field. Including installation rod and installation mechanism, the bottom fixed mounting of installation rod has the probe mechanism, the top fixed mounting of installation rod has the interactive mechanism, the installation mechanism includes first mounting bush and flange, first mounting bush fixed mounting is in the outer wall of installation rod, the top fixed mounting of flange has second mounting bush, the outer wall of second mounting bush is opened to have locking groove, the outer wall sliding installation of first mounting bush has operating sleeve, the inside fixed mounting of operating sleeve has extrusion block, the inside of operating sleeve is opened to have the release slot. The utility model discloses, possess the function of quick disassembly equipment main part, when needing to maintain, calibrate or troubleshooting, can quick disassembly equipment main part, can more efficiently complete these operations, reduced the time and labor cost required for maintenance, improved work efficiency.

The utility model discloses a kind of hydrogen low-temperature precooling devices with oxygen liquefaction, it is related to cryogenic refrigeration and hydrogen energy liquefaction technical field, especially suitable for hydrogen-oxygen cogeneration system's collaborative utilization in green hydrogen production.The device includes hydrogen precooling cold box, liquid oxygen cold box, mixed refrigerant compression and heat exchange system, nitrogen circulation refrigeration system, and micro oxygen analyzer arranged in nitrogen loop.Purification, precooling, adsorption and primary and secondary hydrogen conversion processing are carried out to raw hydrogen, and obtainable liquefied precooling hydrogen is obtained;raw oxygen is purified and heat-exchanged and liquefied, and liquid oxygen product is output.The device realizes cryogenic heat exchange by mixed refrigerant and nitrogen two-stage circulation, adopts multiple separation tank and throttling path to construct multi-temperature zone segmented heat exchange network, and gives consideration to refrigeration efficiency and heat recovery capacity.Liquid oxygen cooling can be dynamically regulated by temperature-adjusting nitrogen path, and adapt to various electrolytic cell working conditions.The utility model is compact in structure, high in safety, excellent in energy efficiency, and is suitable for hydrogen-oxygen collaborative liquefaction processing scene in water electrolysis hydrogen production device.

An energy-saving pressure swing adsorption oxygen production equipment, characterized in that: comprising a first adsorption tower, a second adsorption tower, a second pipeline, a fourth pipeline, an oxygen buffer tank, an oxygen dust filter, an oxygen analyzer, an outlet oxygen flow meter and a programmable control system. The energy-saving pressure swing adsorption oxygen production equipment optimizes the design of the adsorption tower structure and the pipeline, the time required for the gas pressure in the adsorption tower to drop to normal pressure due to working pressure (i.e. emptying time) is only 2-3 seconds, and the amount of regeneration gas required is only about 70% of that of similar equipment, thereby improving the oxygen recovery rate and saving energy. Through the application of the unequal potential equal pressure process, the oxygen production rate and oxygen recovery rate of the equipment are higher, thereby reducing the energy consumption per unit volume of product gas.

The utility model relates to a kind of blast condensing tail gas recovery process device with redundancy design in coal gas purification technical field, specifically related to including negative pressure coal gas pipeline, one end of negative pressure coal gas pipeline keeps communicating with eye valve, one end of eye valve keeps communicating with oxygen analyzer and coal gas pressure regulating valve, one end of coal gas pressure regulating valve keeps communicating with tail gas pressure gauge, one end of tail gas pressure gauge keeps communicating with redundancy pipeline valve, one end of tail gas pressure gauge keeps communicating with valve 1 and valve 2, tail end of valve 1 keeps communicating with two groups of tar storage tank by pipeline, the outside of tar storage tank keeps communicating with nitrogen pipeline, it is that the tail gas in positive pressure oxygen-free recovery blast condensing is recovered into negative pressure coal gas pipeline, tail gas pipeline and instrument redundancy design realize tail gas VOC realizes zero emission, in this system, for positive pressure recovery tail gas, this method can realize oxygen-free environment safety and reliability.

This invention belongs to the field of glove testing technology, and specifically relates to a glove sealing performance testing device, comprising: a stainless steel cavity for mounting the rubber glove under test, providing a sealed testing space for water / oxygen permeability testing; a moisture sampling and testing assembly, including a circulating pump, a water analyzer, and an oxygen analyzer, wherein the water analyzer and oxygen analyzer both have a range of 0-1000ppm, used to collect and detect the moisture and oxygen content permeating the rubber glove within the testing cavity in real time; and a water removal adsorption column, which is a stainless steel column filled with molecular sieves, capable of adsorbing the water content within the testing cavity to below 0.1ppm, achieving deep purification of the moisture within the testing cavity. The fixing assembly of this invention employs a unique structure combining a spiral track and a take-up roller. A drive motor drives a guide wheel to roll along a spiral track in the opposite direction of the spiral, causing the soft steel wire on the take-up roller to be evenly wound in a spiral shape around the interface between the glove and the stainless steel cavity.

The utility model discloses a kind of variable pressure oxygen analysis systems, belong to chemical waste gas detection technology.In the system, sample gas after pretreatment unit is transported to magnetic oxygen analyzer after coalescing filter, pneumatic valve PV02, pressure reducing valve PR02, pneumatic valve PV02 includes leading out a pipeline to be transported to magnetic oxygen analyzer across pressure reducing valve PR02;Coalescing filter includes being connected with back gas pipeline, vacuum generator is set on back gas pipeline;Vacuum generator has a pipeline connection instrument air main pipe to realize air intake, the pipeline is provided with pneumatic valve PV01, and the pneumatic valve PV01 is used to control to provide instrument air for vacuum generator;The system is provided with pressure gauge on the pipeline of sample gas before entering pretreatment unit, and pressure gauge feeds back the sample gas pressure detected to PLC control unit, and provides driving gas to the pneumatic valve by controlling solenoid valve to control, to realize the switching of pneumatic valve.