The official website of Shanghai Songjiang Vibration Absorber Group Co., Ltd. introduces information about DN65 Metal Flexible Joint for Air Conditioning Pipelines. Songjiang Group provides a range of metal flexible joint products designed for industrial temperature-controlled facilities and air conditioning pipeline systems. This product offers excellent shock absorption and noise reduction effects, effectively protecting the pipeline.
Product Name: DN65 air conditioning pipeline metal soft connection
Model: JTW
Caliber: DN65
Pressure: 16KG
Flange material: carbon steel forging
Corrugated material: stainless steel 304
Woven net material: stainless steel 304
Product length: L=300mm
Advantages: high pressure and long life.
Disadvantages: it can only absorb shock, not absorb the noise of pipeline, and has high use cost, so it needs shock absorption and noise reduction. The product with low cost is the limited rubber joint.
Brand: Songjiang group
Origin: Shanghai
Manufacturer: Shanghai Songjiang vibration absorber Group Co., Ltd.
Material Description for DN65 Metal Flexible Joint in Air Conditioning Pipelines:
Corrugated Tube and Braided Mesh: To ensure a longer lifespan, all components are manufactured using high-quality stainless steel 304, supporting various spectrometer inspections. We offer a tenfold compensation for any falsification, and the thickness exceeds industry standards.
Flange Connections: All flanges are made of authentic forged material from Shanxi, providing excellent strength and sealing properties. Do not compare them with commonly used cast steel or plate steel flanges in the market, as they are incomparable in terms of performance.
Welding Material: The welding material surpasses the grade standards of the base material, ensuring a stronger bond at the welding points.
Introduction to Central Air Conditioning Water System:
The water system of a water-cooled central air conditioning system includes a cooling water system and a chilled water/hot water system (generally using a single-pipe system, circulating chilled water in summer and hot water in winter). Air-cooled or air-source heat pump systems include only the chilled water/hot water system. The circulating water system is a crucial part of the central air conditioning system.
Central air conditioning systems can be divided into three categories: water systems, fluorine systems, and air systems. Water systems in central air conditioning use water as the refrigerant, making them more extensive than traditional fluorine systems. Water-based central air conditioning is generally used in large buildings with an operating rate of over 90%, emphasizing energy savings, with American brands dominating the commercial market.
Water system type refers to a small semi-centralized fan coil system where indoor loads are entirely borne by the chilled and hot water units. Each room’s fan coil is connected to the chilled and hot water units through pipes, relying on the provided chilled and hot water for cooling and heating. The water system is flexible, with good independent adjustment, high comfort, and can meet the needs of complex room layouts and independent operation of each room. Additionally, modern water system air conditioners are an excellent solution for floor heating systems. Through effective integration with floor heating, they use low-temperature, large-area, low-temperature radiation heating, making them more comfortable and energy-efficient than traditional fan coil heating systems.
Typical central air conditioning units mainly consist of three parts: the chilled water circulation system, the cooling water circulation system, and the main unit:
- Chilled Water Circulation System:
This part consists of a chilled water pump, indoor fan, and chilled water pipes. Low-temperature chilled water flowing out from the main unit’s evaporator is pressurized by the chilled water pump and sent into the chilled water pipe (outlet). It enters the indoor area for heat exchange, removing heat from the room, and finally returns to the main unit’s evaporator (inlet). The indoor fan is used to blow air over the chilled water pipes, reducing the air temperature and accelerating indoor heat exchange. - Cooling Water Circulation Section:
This part consists of a cooling water pump, cooling water pipes, and a cooling tower. While the chilled water circulation system undergoes indoor heat exchange, it inevitably takes away a considerable amount of heat from the indoor area. This heat is transferred to the cooling water in the main unit, raising the temperature of the cooling water. The cooling water pump sends the heated cooling water into the cooling tower (outlet), where it undergoes heat exchange with the atmosphere, reducing its temperature before being returned to the main unit’s condenser (inlet). - Main Unit:
The main unit consists of a compressor, evaporator, condenser, and refrigerant (refrigerant). Its working cycle is as follows:
Initially, low-pressure gaseous refrigerant is pressurized by the compressor and gradually condensed into high-pressure liquid in the condenser. During the condensation process, the refrigerant releases a large amount of heat, which is absorbed by the cooling water in the condenser and sent to the outdoor cooling tower, ultimately releasing into the atmosphere.Subsequently, the high-pressure liquid refrigerant in the condenser, before entering the evaporator, passes through a throttling pressure reduction device. Due to the sudden pressure change, it vaporizes, forming a gas-liquid mixture entering the evaporator. In the evaporator, the refrigerant continuously vaporizes while absorbing heat from the chilled water, lowering the temperature of the chilled water.Finally, the vaporized refrigerant in the evaporator becomes a low-pressure gas, re-entering the compressor, and the cycle repeats.
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