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125results about How to "Improve air condition" patented technology

Intelligent monitoring and controlling method and device for oxygen content in car

An intelligent monitoring and controlling method for oxygen content in a car uses cycle wakeup for operation. The method includes when operation is started, monitoring whether there are passengers in the car or not, and starting to monitor oxygen content in the car if the passengers are detected to be in the car under wakeup condition; alarming by a system to remind the passengers in the car of paying attention to space ventilation in the car when oxygen content in the car is lower than a first alarm threshold value and anoxic risk is possibly caused, and turning on an air conditioner for ventilation simultaneously to improve air condition in the car; and activating an alarm when oxygen content in the car is detected to be further reduced and is close to a second alarm threshold value and the passengers in the car are in danger of life, and unlocking locks of four doors so that people outside can come in to rescue. After operation is finished, the system enters a sleep state to save energy. The invention further discloses a device implementing the method. By the use of the intelligent monitoring and controlling method and device, lives and health of the passengers in the car can be prevented from threatening of insufficient oxygen content.
Owner:HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2

Hexagonal or octagonal tangential arrangement of anthracite burning single-fireball direct-flow combustors

The invention provides hexagonal or octagonal tangential arrangement of anthracite burning single-fireball direct-flow combustors, which is characterized in that: two groups of combustors are arranged on each water-cooling wall or two groups of combustors are arranged on two opposite water-cooling walls of a hearth respectively and a group of combustors are arranged on the other two opposite water-cooling walls respectively, each group of combustors are at least divided into a small group; and each small group of combustors are vertically provided with at least two primary air pulverized nozzles and three secondary air pulverized nozzles at intervals. Each coal mill is connected with eight or six primary air pulverized nozzles which have the same level with that of the coal mill. The start and stop of each coal mill affect the running of the eight or six primary air pulverized nozzles which are on the same layer. The hexagonal or octagonal tangential arrangement of the anthracite burning single-fireball direct-flow combustors can decrease the number of the air pulverized nozzles in a single group of combustors on the premise of meeting the requirements of the thermal power of a single air pulverized nozzle and the number of the total air pulverized nozzles, allows the thermal load qHr of a wall in a combustor area to be relatively high, and guarantees the timely ignition of an pulverized anthracite flow and low-load combustion of a boiler without oil.
Owner:SHANGHAI BOILER WORKS

Coal dust thickness-thinness separating and distributing structure of single-fireball eight-corner direct-flow burner

The invention discloses a coal dust thickness-thinness separating and distributing structure of a single-fireball eight-corner direct-flow burner. Eight groups of burners are arranged on a boiler body, two groups of the burners are arranged on each water cooled wall, each group of the burners comprises a plurality of the burners with nozzles facing to the same direction, and a center line of each nozzle of the eight groups of the burners forms an imaginary inscribed circle along the same tangential direction in a boiler chamber. In the coal dust thickness-thinness separating and distributing structure, the eight groups of the burners are distributed on four water cooled wall of a boiler, therefore, the coal dust concentration of a thick coal dust area is increased, the heat load qHr of the wall face of the area of the lower burners is higher, and the burning temperature in the area can achieve the requirement of stable-combustion of firing of anthracite. The distance of jet flow from outlets of the nozzles to a downstream adjacent-angle airflow is short, a lower primary air coal dust airflow speed can be adopted, the intensity of a heat flow of the outlets of the nozzles is high, and passing convection and radiation heat transfer amount are improved to ensure timely firing of the airflow of anthracite coal dust and steady burning of the boiler in low load without oil.
Owner:SHANGHAI BOILER WORKS

Multi-air conditioner and operation method thereof

Disclosed is a multi-air conditioner including: an outdoor unit having a compressor, an outdoor heat exchanger, and an outdoor fan for ventilating the outdoor heat exchanger; a plurality of indoor units each having an electronic expansion valve and an indoor heat exchanger; a distributor for selectively guiding a refrigerant of the outdoor unit into the plurality of indoor units according to an operation condition; a four-way valve for selectively switching a flow direction of the refrigerant flowing through the outdoor heat exchanger; a selective expansion unit for selectively expanding the refrigerant according to the flow direction of the refrigerant; a gas-liquid separator for separating a vapor-phase refrigerant and a liquid-phase refrigerant, from the refrigerant flowing from the outdoor heat exchanger; and a connection tube part having a first connection tube for connecting the four-way valve with a distributor, a second connection tube for connecting an upper portion of the gas-liquid separator with the distributor thereby guiding a vapor-phase refrigerant, and a third connection tube for connecting a lower portion of the gas-liquid separator with the distributor thereby guiding a liquid-phase refrigerant.
Owner:LG ELECTRONICS INC

Indoor air purification method

The invention relates to an indoor air purification method. The indoor air purification method comprises the following steps: carrying out haze removal and formaldehyde removal purification treatmenton indoor air by virtue of negative ions generated by an air purification system; carrying out sterilization and disinfection treatment on the indoor air by virtue of ozone generated by the air purification system; and removing the ozone in the indoor air by virtue of the air purification system after the sterilization and disinfection treatment, wherein the air purification system comprises a haze removal, formaldehyde removal and sterilization module, and an ozone treatment module. According to the indoor air purification method, the haze removal and formaldehyde removal purification treatment or the sterilization and disinfection treatment is carried out according to an indoor use condition and an indoor air condition, then the sterilization and disinfection treatment is carried out byvirtue of the ozone, and then the ozone removal treatment can be carried out according to an indoor ozone concentration, so that the ozone left in air is prevented from causing harm to bodies; and after the haze removal and formaldehyde removal treatment, the sterilization and disinfection treatment, and the ozone removal treatment, the indoor air condition can be improved, and indoor virus spreading due to a too high haze concentration or germ residual is avoided.
Owner:XIDIAN UNIV

Pulverized coal boiler capable of subcritically combusting lean coal

The invention provides a pulverized coal boiler capable of subcritically combusting lean coal. The pulverized coal boiler comprises a hearth, superheaters, coal economizers and an air preheater. Combustors are arranged in the hearth. The pulverized coal boiler is characterized in that the superheaters include high-temperature superheaters and low-temperature superheaters, the high-temperature superheaters are arranged on the upper side of the hearth, a flue with a vertical shaft is communicated with the upper side of the hearth, two sides of the flue with the vertical shaft are separated from each other, the low-temperature superheaters and the coal economizers are respectively arranged on the two sides of the flue with the vertical shaft, a superheated steam inlet pipeline is arranged below the low-temperature superheaters, an emergency spray attemperator is mounted on the overheated steam inlet pipeline, the flue with the vertical shaft is provided with flue gas temperature regulating barriers which are respectively arranged below the low-temperature superheaters and the coal economizers, and the high-temperature superheaters and the low-temperature superheaters are respectively connected with trim spray attemperators. The pulverized coal boiler has the advantages that the lean coal with the Vdaf (volatile) equal to 14% can be sufficiently combusted in the boiler, so that energy is sufficiently utilized, and the pulverized coal boiler is energy-saving.
Owner:WUXI HUAGUANG BOILER
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