With the increasing shortage of domestic electricity, coal and petroleum resources, the use of environmentally friendly, pollution-free and energy-efficient water source heat pumps is attracting more and more attention. Ministry of Construction to determine the next two years, resource conservation focus of work, including water source heat pump in the construction of the promotion and application of the six major priorities. Water source heat pump can use surface water, groundwater, water loop as a heat source, but also can be widely used hot water, steam, electric heating, fuel heating, gas heating or solar collectors, industrial waste heat and other heat sources, with very high environmental protection and energy saving value .
As a leader in the water source heat pump market , McQuay has been "flexible, quiet and efficient" as the product design criteria for the success of the design , such as concealed ceiling indoor unit with a hydrophilic corrosion of aluminum fins, extending the life of the unit , The scene can be easily changed to take over the direction and the fourth gear supply static pressure, greatly improving the flexibility of the new "Ling Jing" boutique series split water source heat pump energy efficiency has reached 4.5, 1.4 times the national standard. Through the patented double suspension damping technology, McQuay "Ling Jing" series of split water source heat pump 6HP unit noise is only 41 dB!
On the basis of maintaining the previous design standards, "Ling Jing" boutique series also expanded the scope of application of the products and enhanced the added value of the products. Through the use of an optional centralized controller or PC program, up to 1,024 units can be controlled throughout the building, as well as the first water system controller (LWC) in the industry to provide water-based heat pump central air conditioning water system 2 Level pump, up to 12 cooling equipment or heating equipment for centralized remote control, improve the central air-conditioning system of automatic management level.
In 1965, McQuay began designing and manufacturing water source heat pumps at the AuBurn plant in the United States and created the world's first VAV heat pump unit, the first ultra-quiet water source heat pump and the first separate water source heat pump. In 1992, McQuay introduced the concept of water source heat pump to China and advocated the use of water source heat pump air conditioner that is free from pollution and saving the Earth's resources. In 2002, McQuay began drafting the national water source heat pump standard. On June 1, 2003, the National Standard for Water Source Heat Pump GB / T "Officially implemented.
One of the world's largest specialist in the manufacture, manufacture and development of HVAC, refrigeration and air purification equipment, McQuay was founded in the United States in 1872 and currently has three manufacturing facilities in China that cover domestic, commercial to central The whole range of air conditioning.
Insecticide Single Formulation
Insecticides can be divided into biological sources and chemical synthesis.
Biogenic insecticides include: â‘ preparations of effective insecticidal ingredients extracted from higher plants, such as natural pyrethrin, rotenone, etc.;
â‘¡ Insecticides made from living organisms mainly include fungi (such as Beauveria bassiana), bacteria (such as odontobacillus) and viruses (such as Bacillus borer).
â‘¢ Insect physiological active substances, such as pheromones.
Chemical synthetic pesticides mainly include: Inorganic insecticides (e.g. White arsenic As2O3, Sodium fluosilicate, Na2SiF6, etc.), organochlorine insecticides (such as chlordane, BHC, DDT, toxaphene, etc.), organophosphorus insecticides (such as dichlorvos, trichlorfon, Dimethoate, malathion, chloraphenone, etc.), carbamate insecticides (such as carbaryl, sulfenocarb, etc.) and pyrethroid insecticides (such as fenvalerate, cypermethrin, etc.).
The main ways in which insecticides can kill pests are:
â‘ Touching agents enter the body through the epidermis of the pest and play a role, causing the pest poisoning and death;
â‘¡ Gastric toxic agents are absorbed by the stomach and intestines directly after being eaten by pests, causing them to die of poisoning;
â‘¢ Some fumigation drugs are volatile, and their vapors enter the body through the respiratory tract of pests, causing them to die of poisoning;
(4) ingestion drugs are first absorbed by the crop, and conducted to the whole plant, when pests ingestion, eating crops, so that it died of poisoning.
Insecticide Single Formulation,Vegetable Root Knot Nematode,Aphids Leafhoppers Planthoppers,Contact Stomach Poisoning Fumigation
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