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02
Dec
Knowledge! Multi-stage centrifugal fan performance
Technical performance 1. The fan is equipped with a base, and the fan and motor are assembled on the same base. 2. The blower base, without anchor bolts and with 8 rubber shock-absorbing pads, is placed directly on the ground for easy construction. 3. Complete fan accessories.... read more
17
Apr
Knowledge! How Does Decent Machinery Mobile Fog Cannon Technology Enhance Eco-Friendly Construction?
A project in a foreign high-tech zone is a huge construction project that needs to deal with many environmental protection challenges during the construction process. DECENT is honored to participate in this project and used advanced mobile fog cannon trucks to provide a reliable solution... read more
28
Oct
Precautions for wear and repair of impeller of high pressure centrifugal fan
Received an inquiry from a new customer today, the customer is a well-known local petrochemical company. The previously purchased centrifugal combustion-supporting blower had blade wear. So we recommended wear-resistant treatments and new fans to our customers. Fan impeller wear is related to abrasive composition, particle... read more
10
Jul
Ventsim-3D Mine Ventilation Simulation Software
In the mining industry, the efficient operation of ventilation systems is of paramount importance. To ensure a safe, comfortable, and productive working environment, selecting the right mining fans becomes a critical task. However, amidst numerous selection options, accurately choosing the most suitable mining fans... read more
03
Jul
Professional selection report facilitates the construction of perfect AHU solutions
As a leading exporter of air handling units (AHUs), Zibo Decent Machinery have successfully provided accurate solutions for AHU selection based on our customers’ requirements, and effectively presented them through selection reports. We have a comprehensive understanding of our customers’ specific needs, including air flow... read more
30
Mar
What Is An Industrial Dust Collector and How Does it Work?
Industrial dust collectors are essential equipment in manufacturing and industrial settings. They play a vital role in maintaining a healthy work environment by controlling the amount of airborne dust particles that are produced during manufacturing processes. In this article, we will discuss what an... read more
05
Jul
Professional Testing Assurance: Safeguarding Your Mining Ventilation Fans
In the mining industry, mining ventilation fans play a critical role in providing safe ventilation and reducing mine temperatures. To ensure the normal operation and safe stability of your mining ventilation fans, comprehensive testing is essential. As a professional testing agency, we are committed... read more
25
Oct
The Difference Between Ultra-low Temperature Air Energy Heat Pump and Ordinary Air Energy Heat Pump
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
08
Jan
Knowledge!Spice Factory Dust Exhaust Gas Treatment Solution
Brief description of organic waste gas from spice factories: During the manufacturing process, flavor and fragrance factories produce a large amount of odor-containing organic industrial waste gases such as esters, ethers, aldehydes, etc., which have their own unique characteristics: low concentration, large air volume, low... read more
30
Jun
Vietnam Smart Furniture Expo – Decent Technology Presents Latest Security System Product Line
As a leading global player in the industrial safety equipment field, Air Come has formed a strategic partnership with Decent, a company based in Zibo, China, to jointly introduce a series of innovative security system product lines. Air Come, a well-known brand in the industry,... read more