Explosion-proof air-conditioning working principle Installation structure Explosion-proof air-conditioning Introduction:
Explosion-proof air conditioner is a kind of explosion-proof electrical equipment, which is mainly used for refrigeration and heating of flammable and explosive environments such as petroleum, chemical industry, oil depot, and offshore oil platform. The appearance and usage of explosion-proof air conditioner is the same as that of ordinary air conditioners. Explosion-proof air conditioners are divided into high temperature, low temperature, special high temperature, and special low temperature according to the working environment.
The product has functions of cooling and heating and automatic defrosting. Compressors, fans, etc. have undergone special explosion-proof treatment. The explosion-proof type is explosion-proof for the whole machine. Explosion-proof products can be used in petroleum, chemical, pharmaceutical, scientific research, military, hazardous warehouses and other flammable and explosive mixed gas environments. In the structure, explosion-proof, intrinsically safe, and encapsulation-type composite explosion-proof technologies are adopted. The control ends are all controlled by intrinsically safe and do not generate any EDM. They are easy to use and safe, and they are highly efficient and multi-fin heat exchangers. When the contact with the air is more adequate, it can greatly improve the cooling and heating effect of air conditioning, manual control and remote control. Explosion-proof air conditioners cannot be produced and sold without obtaining a production license.
Explosion-proof air-conditioning standards:
Explosion-proof air-conditioning products must comply with the relevant national explosion-proof standards before they are allowed to enter the market, the state announced the implementation of explosion-proof products standards;
GB3836.1-2000 Electrical apparatus for explosive gas atmospheres Part 1: General requirements GB3836.2-2000 Electrical apparatus for explosive gas atmospheres Part 2: Flameproof type "d"
GB3836.2-2000 Electrical apparatus for explosive gas atmospheres Part 2: Flameproof type "d"
GB3836.4-2000 Electrical apparatus for explosive gas atmospheres Part 2: Intrinsically safe type "ib"
GB3836.9-2006 Electrical apparatus for explosive gas atmospheres Part 9: Encapsulant type "m"
GB3836.15-2000 Electrical apparatus for explosive gas atmospheres Part 15: Electrical installation in hazardous areas (except coal mines)
JB/10538-2005 Explosion-proof dehumidifier and air conditioner
Features:
Compact structure, elegant appearance, lightweight design, easy installation.
With brand-name compressors, the cooling (heating) volume is large, the performance is stable and reliable, the noise is low, the power consumption is saved, and the service life is long.
The use of composite explosion-proof type and perfect overheating, pressure protection and other measures, the whole explosion-proof, safe and reliable.
Advanced control technology, adjustable temperature, adjustable air volume
Explosion-proof air conditioning structure and engineering principle:
The explosion-proof air conditioner is composed of indoor unit and outdoor unit connection pipeline. The following is the vertical air conditioner structure diagram:
Air inlet: The air in the room is inhaled and dust is removed through the air filter.
Outlet: The conditioned air blows out.
Drain pipe: The humidity of the room drains through the condenser to generate small water droplets.
Connecting pipe: The indoor unit and the outdoor unit are connected by a copper pipe, and the refrigerant circulates.
Outdoor unit: The outdoor unit is composed of compressor, fan, heat exchanger, capillary (electronic expansion valve) and other electrical components. Temperature control switch: control the power off, select cooling and heating and adjust the set temperature, control the indoor temperature. Air conditioning working principle (heat pump type)
When the heat pump type air conditioner operates in the cooling mode, the three-way valve commutates to turn on the various components. At this time, the indoor heat exchanger becomes an evaporator, and the outdoor heat exchanger becomes a condenser. Low-temperature and low-pressure superheat gas from the indoor heat exchanger enters the gas-liquid separator through the four-way valve and the muffler. After the liquid is separated, the hot gas is sucked into the compressor and compressed into high-temperature and high-pressure gas. The gas passes through the four-way valve and enters the outdoor heat exchanger to radiate heat and condense, becoming supercooled liquid. After the supercooled liquid is depressurized by the capillary resistance, it becomes a low-temperature, low-pressure, two-phase fluid. It enters the indoor heat exchanger to evaporate and absorb heat (at this time, the indoor air is cooled). Once again, the four-way valve and the gas-liquid separator enter the next cycle: the filter It is mainly used for the separation of refrigerant and compressor oil to ensure the heat exchange efficiency of the heat exchanger.
When the heat pump type air conditioner operates in a heating condition, the four-way valve commutates to turn on the dashed line in the figure. At this time, the indoor heat exchanger becomes a condenser and the outdoor heat exchanger becomes an evaporator. The low-temperature and low-pressure superheated gas from the outdoor heat exchanger enters the gas-liquid separator through the four-way valve and the muffler. After the liquid is separated, the dry superheated gas is sucked by the compressor and compressed into high-temperature and high-pressure gas. The gas enters through the four-way valve. The indoor heat exchanger radiates heat and condenses (in this case, the indoor air is heated). Become a supercooled liquid, supercooled liquid becomes a low-temperature and low-pressure two-phase fluid after decompression by capillary resistance. It enters the outdoor heat exchanger to evaporate and absorb heat, and then the superheated gas enters the next cycle through the four-way valve and the gas-liquid separator. In order to prevent the indoor comfort from defrosting due to defrosting during heating, a hot gas bypass is used to continuously defrost the heat. When defrosting, the operating principle is basically the same as heating, except that the defrosting solenoid valve is opened. Some of the high-temperature and high-pressure superheated gas coming out of the compressor is diverted to the entrance of the outdoor heat exchanger, rapidly increasing the temperature of the outdoor heat exchanger to over 0°C, melting the frost layer on the outdoor heat exchanger, and making the heat exchange The device maintains good heat exchange efficiency.
Explosion-proof air conditioners are based on ordinary air conditioners, and explosion protection is performed on electrical systems, including compressors, fans, and electrical lines. The control line adopts the electrical system with the optocoupler solid state relay as the core to carry out the whole explosion protection. The original function of the original air conditioner is maintained, the structure is simplified, the operation is simplified, and the equipment can be used safely in a mixed gas environment.
Explosion-proof air conditioning installation and maintenance notes:
1 explosion-proof air-conditioning installation failed, maintenance is not timely. The installation of the air conditioner is not in conformity with regulations and is prone to accidents. If there is no grounding device in the metal casing of electrical equipment such as air conditioners, although there is a grounding device, but the grounding wire is too thick or the grounding wire and the connection terminal do not have to be firmly connected or welded together; change the power cord, wiring or insulated wire at will Leather, exposed parts of the air-conditioner are exposed; use of unqualified electrical products (such as on-line, socket) for installation; the installer is not a professional electrician or lack of electrical safety knowledge. If you do not understand the technical requirements for electrical installation, it will result in poor installation quality, unfavorable maintenance, and stability or danger. Electric shocks may occur.
Electrical equipment includes lines, air conditioners, switches, sockets, etc. If you use it for a long time, there will be insulation aging, switch failure, and even component damage. If you do not repair or replace it in time, accidents may occur if you continue to use it.
2 Pay attention to poor safety awareness during work. Some electricians are paralyzed and unresponsive at work and do not strictly abide by safety procedures leading to electric shocks. For example, when a device such as a line or an air conditioner is working, it is repaired without performing an inspection; or when the air conditioner is repaired, if the power supply light of the air conditioner is off, the power supply is turned off, and if the power is turned off during repair, an electric shock may occur. ACCIDENT.
Explosion proof principle:
After the aluminum alloy explosion-proof material is placed in the explosion-proof air conditioner, the inner cavity of the container is divided into many small “small compartments†due to the honeycomb structure formed in the mesh of the explosion-proof material stack, and these “small compartments†contain flames. Propagation, at the same time, the honeycomb structure has a high surface efficiency per unit volume, and thus has excellent thermal conductivity, can quickly absorb most of the heat released by the combustion, so that the final temperature Tf after the combustion reaction is greatly increased. With the decrease, the expansion of the reaction gas is greatly reduced, and the pressure of the container is not increased.
Explosion-proof air conditioner is a kind of explosion-proof electrical equipment, which is mainly used for refrigeration and heating of flammable and explosive environments such as petroleum, chemical industry, oil depot, and offshore oil platform. The appearance and usage of explosion-proof air conditioner is the same as that of ordinary air conditioners. Explosion-proof air conditioners are divided into high temperature, low temperature, special high temperature, and special low temperature according to the working environment.
The product has functions of cooling and heating and automatic defrosting. Compressors, fans, etc. have undergone special explosion-proof treatment. The explosion-proof type is explosion-proof for the whole machine. Explosion-proof products can be used in petroleum, chemical, pharmaceutical, scientific research, military, hazardous warehouses and other flammable and explosive mixed gas environments. In the structure, explosion-proof, intrinsically safe, and encapsulation-type composite explosion-proof technologies are adopted. The control ends are all controlled by intrinsically safe and do not generate any EDM. They are easy to use and safe, and they are highly efficient and multi-fin heat exchangers. When the contact with the air is more adequate, it can greatly improve the cooling and heating effect of air conditioning, manual control and remote control. Explosion-proof air conditioners cannot be produced and sold without obtaining a production license.
Explosion-proof air-conditioning standards:
Explosion-proof air-conditioning products must comply with the relevant national explosion-proof standards before they are allowed to enter the market, the state announced the implementation of explosion-proof products standards;
GB3836.1-2000 Electrical apparatus for explosive gas atmospheres Part 1: General requirements GB3836.2-2000 Electrical apparatus for explosive gas atmospheres Part 2: Flameproof type "d"
GB3836.2-2000 Electrical apparatus for explosive gas atmospheres Part 2: Flameproof type "d"
GB3836.4-2000 Electrical apparatus for explosive gas atmospheres Part 2: Intrinsically safe type "ib"
GB3836.9-2006 Electrical apparatus for explosive gas atmospheres Part 9: Encapsulant type "m"
GB3836.15-2000 Electrical apparatus for explosive gas atmospheres Part 15: Electrical installation in hazardous areas (except coal mines)
JB/10538-2005 Explosion-proof dehumidifier and air conditioner
Features:
Compact structure, elegant appearance, lightweight design, easy installation.
With brand-name compressors, the cooling (heating) volume is large, the performance is stable and reliable, the noise is low, the power consumption is saved, and the service life is long.
The use of composite explosion-proof type and perfect overheating, pressure protection and other measures, the whole explosion-proof, safe and reliable.
Advanced control technology, adjustable temperature, adjustable air volume
Explosion-proof air conditioning structure and engineering principle:
The explosion-proof air conditioner is composed of indoor unit and outdoor unit connection pipeline. The following is the vertical air conditioner structure diagram:
Air inlet: The air in the room is inhaled and dust is removed through the air filter.
Outlet: The conditioned air blows out.
Drain pipe: The humidity of the room drains through the condenser to generate small water droplets.
Connecting pipe: The indoor unit and the outdoor unit are connected by a copper pipe, and the refrigerant circulates.
Outdoor unit: The outdoor unit is composed of compressor, fan, heat exchanger, capillary (electronic expansion valve) and other electrical components. Temperature control switch: control the power off, select cooling and heating and adjust the set temperature, control the indoor temperature. Air conditioning working principle (heat pump type)
When the heat pump type air conditioner operates in the cooling mode, the three-way valve commutates to turn on the various components. At this time, the indoor heat exchanger becomes an evaporator, and the outdoor heat exchanger becomes a condenser. Low-temperature and low-pressure superheat gas from the indoor heat exchanger enters the gas-liquid separator through the four-way valve and the muffler. After the liquid is separated, the hot gas is sucked into the compressor and compressed into high-temperature and high-pressure gas. The gas passes through the four-way valve and enters the outdoor heat exchanger to radiate heat and condense, becoming supercooled liquid. After the supercooled liquid is depressurized by the capillary resistance, it becomes a low-temperature, low-pressure, two-phase fluid. It enters the indoor heat exchanger to evaporate and absorb heat (at this time, the indoor air is cooled). Once again, the four-way valve and the gas-liquid separator enter the next cycle: the filter It is mainly used for the separation of refrigerant and compressor oil to ensure the heat exchange efficiency of the heat exchanger.
When the heat pump type air conditioner operates in a heating condition, the four-way valve commutates to turn on the dashed line in the figure. At this time, the indoor heat exchanger becomes a condenser and the outdoor heat exchanger becomes an evaporator. The low-temperature and low-pressure superheated gas from the outdoor heat exchanger enters the gas-liquid separator through the four-way valve and the muffler. After the liquid is separated, the dry superheated gas is sucked by the compressor and compressed into high-temperature and high-pressure gas. The gas enters through the four-way valve. The indoor heat exchanger radiates heat and condenses (in this case, the indoor air is heated). Become a supercooled liquid, supercooled liquid becomes a low-temperature and low-pressure two-phase fluid after decompression by capillary resistance. It enters the outdoor heat exchanger to evaporate and absorb heat, and then the superheated gas enters the next cycle through the four-way valve and the gas-liquid separator. In order to prevent the indoor comfort from defrosting due to defrosting during heating, a hot gas bypass is used to continuously defrost the heat. When defrosting, the operating principle is basically the same as heating, except that the defrosting solenoid valve is opened. Some of the high-temperature and high-pressure superheated gas coming out of the compressor is diverted to the entrance of the outdoor heat exchanger, rapidly increasing the temperature of the outdoor heat exchanger to over 0°C, melting the frost layer on the outdoor heat exchanger, and making the heat exchange The device maintains good heat exchange efficiency.
Explosion-proof air conditioners are based on ordinary air conditioners, and explosion protection is performed on electrical systems, including compressors, fans, and electrical lines. The control line adopts the electrical system with the optocoupler solid state relay as the core to carry out the whole explosion protection. The original function of the original air conditioner is maintained, the structure is simplified, the operation is simplified, and the equipment can be used safely in a mixed gas environment.
Explosion-proof air conditioning installation and maintenance notes:
1 explosion-proof air-conditioning installation failed, maintenance is not timely. The installation of the air conditioner is not in conformity with regulations and is prone to accidents. If there is no grounding device in the metal casing of electrical equipment such as air conditioners, although there is a grounding device, but the grounding wire is too thick or the grounding wire and the connection terminal do not have to be firmly connected or welded together; change the power cord, wiring or insulated wire at will Leather, exposed parts of the air-conditioner are exposed; use of unqualified electrical products (such as on-line, socket) for installation; the installer is not a professional electrician or lack of electrical safety knowledge. If you do not understand the technical requirements for electrical installation, it will result in poor installation quality, unfavorable maintenance, and stability or danger. Electric shocks may occur.
Electrical equipment includes lines, air conditioners, switches, sockets, etc. If you use it for a long time, there will be insulation aging, switch failure, and even component damage. If you do not repair or replace it in time, accidents may occur if you continue to use it.
2 Pay attention to poor safety awareness during work. Some electricians are paralyzed and unresponsive at work and do not strictly abide by safety procedures leading to electric shocks. For example, when a device such as a line or an air conditioner is working, it is repaired without performing an inspection; or when the air conditioner is repaired, if the power supply light of the air conditioner is off, the power supply is turned off, and if the power is turned off during repair, an electric shock may occur. ACCIDENT.
Explosion proof principle:
After the aluminum alloy explosion-proof material is placed in the explosion-proof air conditioner, the inner cavity of the container is divided into many small “small compartments†due to the honeycomb structure formed in the mesh of the explosion-proof material stack, and these “small compartments†contain flames. Propagation, at the same time, the honeycomb structure has a high surface efficiency per unit volume, and thus has excellent thermal conductivity, can quickly absorb most of the heat released by the combustion, so that the final temperature Tf after the combustion reaction is greatly increased. With the decrease, the expansion of the reaction gas is greatly reduced, and the pressure of the container is not increased.
Concealed Shower Set,Shower Set,Dual Shower Head System,Rainfall Shower Combo
kaiping aida sanitary ware technology co.,ltd , https://www.aidafaucets.com