01
Dec
Product Structure Features:
(1) The shell of the switch cabinet is machined from aluminum-zinc-coated steel plates, and multiple folding processes are adopted, so that the whole cabinet not only has high precision, strong corrosion resistance, and anti-oxidation effect, but also ensures that it will not... read more
10
Jul
In mining tunnel projects, the effectiveness of ventilation systems is of utmost importance. We are proud to announce that our produced PVC flexible ducts can achieve diameters over 2 meters, providing exceptional ventilation solutions for mining tunnels.
Technical Advantages:
Decent’s PVC flexible ducts offer the following... read more
21
Apr
Fog cannons have emerged as a versatile solution for various applications, including pollutant control, dust control on construction sites, and fire extinguishing in storage yards. The technology is gaining popularity due to its effectiveness in mitigating environmental and safety hazards.
In pollutant control, fog cannons... read more
21
Jun
Dear valued customer,
The Dragon Boat Festival is approaching, and we want to wish you a joyous and prosperous celebration! This traditional Chinese festival carries great cultural significance, and we are delighted to share its essence with you through this notice.
The Dragon Boat Festival is... read more
15
Sep
Today, our company had online communication with customers in Kazakhstan (our company’s target), and at the same time, we showed our customers our production line of mining fans and mining fan equipment through live video and introduced our production process in detail. As well... read more
12
Apr
Industrial fog cannons have become increasingly popular in various industries as a means of suppressing dust and other airborne particles. But how exactly do these machines work?
At their core, industrial fog cannons work by emitting a fine mist of water droplets into the air.... read more
21
Oct
Today, our Vietnamese kiln factory customer asked us to consult the kiln fan used in the kiln production line. We introduced our kiln fan to the customer in detail. The most obvious advantage of the kiln fan is its aerodynamic performance. The furnace fan... read more
29
Jan
Our dust collector is designed for industrial environments where air pollution control is essential.
It can be used in a wide range of applications including but not limited to. woodworking, metalworking, cement manufacturing, and food processing.
The dust collector works by drawing in contaminated air and... read more
01
Jul
We are honored to announce that our centrifugal fans have been upgraded to meet the needs of Swiss customers. This esteemed customer not only requires efficient heat dissipation fans, but also has strict requirements for flue gas temperature, reaching up to 250 ℃!
To ensure... read more
25
Oct
Whenever the heating season arrives, most areas in the north will be accompanied by smog. Since the “13th Five-Year Plan”, the central and local governments have paid special attention to the control of environmental pollution, especially smog. The central government has demarcated the Beijing-Tianjin-Hebei air pollution transmission channel for it and directly subsidized the “2+26” cities from the central government to control smog pollution. So the north began the tide of coal-to-electricity and coal-to-clean energy.
Two or three years ago, most people didn’t know much about air-to-air heat pump products. If they were slightly impressed, they might be air-to-water heaters, but they didn’t know anything about other products. Such as air-energy floor heating and air-conditioning integrated machine, air-energy heat pump dryer, and so on. After the popularization of “coal-to-electricity” in the north, most people know what an air energy heat pump is. So what is the difference between the ultra-low temperature air energy heat pump used in the north and the ordinary air energy heat pump?
The operating conditions of the two are different.
We all know that the working principle of the air energy heat pump is to convert the heat in the air into the available high heat energy through the compressor, and then exchange it with the water system to provide hot water, heating, cooling, drying, and other purposes. The temperature environment in which the ordinary air source heat pump operates is preferably within minus 10 ℃. If it operates at minus 10 to 25 ℃, it may appear:
1. Compressor is prone to failure
The temperature of the exhaust gas rises rapidly, and the overheating of the working medium is too high. In the case of overheating of the working medium, the thermal conductivity of the working medium in the condenser decreases sharply, and at the same time, the temperature of the lubricating oil increases and the viscosity decreases, which affects the normal lubrication of the compressor.
2. The unit cannot defrost
In frequent rain and snow weather and low temperature, the defrosting ability of the unit is easily weakened. Because the air intake of the unit is too small, the density of the air that can be inhaled is reduced. With the accumulation of time, the thickness of the frost layer is getting higher and higher. Therefore, the unit will reduce the circulation of the refrigerant due to the decrease in the air conversion capacity, and the overall heating capacity will decrease.
The two technologies involved are different
Because of the difference in an ambient temperature between the north and the south, most air energy heat pump manufacturers are located in the southern Guangdong area. The air energy market in the south is extensive. The earliest product is also an air energy water heater. With the development of air energy, its technology is also becoming more and more mature. Heating has also gained a firm foothold in the north, which is also the fundamental reason for the breakthrough growth of coal-to-electricity air-energy heat pumps in the north in the past three years.
So what kind of technology does low-temperature air energy have to gain a firm foothold in the cold northern regions? There are three main points:
1. Ultra-low Temperature air Energy Operation Technology Air energy heat pump manufacturers have their own ultra-low temperature technology. Since the air energy heat pump host is generally installed outdoors, the phenomenon of frost will frequently occur in rainy and snowy weather. The ultra-low temperature air energy heat pump host can intelligently judge the defrosting needs, and intelligently judge whether to defrost according to the operating conditions of the unit (running time, exhaust temperature, etc.), combined with the ambient temperature and frost thickness. Defrost with frost and no defrost without frost, greatly extending the defrosting cycle, shortening the defrosting time by 20%, and ensuring the efficient operation of the unit.
2. Jet Enthalpy Technology
Because the heating efficiency of the air-energy heat pump in extremely cold weather will be greatly attenuated, resulting in an unsatisfactory heating effect. The ultra-low temperature air energy heat pump uses the jet enthalpy increase technology to create a second suction port on the scroll, and through the second suction circuit, the refrigerant flow is increased, and the circulation volume of the unit is increased during cooling. Compared with the general unit, the cooling capacity is increased by 10%, which greatly improves the refrigerant circulation system, makes full use of the refrigerant flow and utilization rate in the compressor, and improves the stability of the system operation and the heating efficiency.
3. Shell and Tube Heat Exchanger
Ordinary air can use a plate heat exchanger, which is easy to scale and block the flow passage. Low-temperature air can use copper tubes with internal thread and external fins. The water inside the tube and fluorine outside the tube. The heat exchange area is large and the heat exchange efficiency is high.
read more
Español
Русский
Tiếng Việt
中文
suomi
Français
Português
English
Deutsch
Français
Español
Italiano
Português
Pусский
