Lightweight composite hoses are used as flexible couplings for pumps in the inlet and outlet pipelines of pumps. A universal compensator is installed on the inlet and outlet pipelines of the pump to compensate for the thermal expansion of the pipeline, reduce the thrust of the pump caused by the thermal expansion of the pipeline, or absorb the vibration generated by the operation of the pump.
Lightweight composite hoses can be used for flexible connections between storage tanks and pipelines. In recent years, storage tanks in oil fields, oil depots, and chemical plants have been built larger and larger. Due to geological constraints, foundation subsidence causes changes in the position of storage tanks and inlet and outlet pipelines, which can easily cause damage to connecting pipelines and tank walls. Therefore, lightweight composite hoses are installed in the inlet and outlet pipelines of storage tanks to compensate for displacement. A small pull rod type (compound type) corrugated compensator is installed in the inlet and outlet pipelines of the storage tank. It can not only absorb the axial displacement caused by thermal expansion of the pipeline, but also compensate for the lateral displacement caused by the sinking of the storage tank foundation, prevent damage to the pipeline and tank wall, and also has anti vibration and anti vibration functions.
Lightweight composite hoses are also widely used in the steel industry. In large blast furnaces and hot blast stoves, large-diameter corrugated compensators and rectangular corrugated expansion joints are mainly used. For example, different types of corrugated compensators are used in the pressure supply and discharge pipeline system, cooling pipeline system, air supply pipeline, oxygen supply pipeline and cooling water pipeline of the blast furnace top equipment. A universal lightweight composite hose compensator has been installed in the air supply branch of the blast furnace body, which can not only compensate for pipeline displacement but also reduce installation stress.

Characteristics of lightweight composite hose connection device:

1. Connect. The guiding mechanism of the lightweight composite hose connection device can automatically find the connection endpoint, with little influence from sea conditions and accurate connection alignment; By using remote control to operate the hydraulic joint, remote control can be achieved, achieving automatic connection and disconnection between the workboat joint and the workboat hose joint. The entire connection process does not require the use of any tools or accessories, thereby reducing labor intensity and improving the connection.
2. The sealing performance is good. The hose connection device uses a cable winch to receive the heavy hammer and retract the cable. The fixed connection end is accurately aligned with the hose joint, and the sealing ring on the contact surface is tightly pressed, avoiding errors and deviations that may be caused by manual operation. During the locking process of the hydraulic joint, the mating surface is uniformly compressed, avoiding the possibility of uneven compression caused by manual locking. The sealing performance of the hose joint connection can prevent the leakage of the conveying medium and pollution of the marine environment.
3. Using a hose connection device, the sealing ring built into the fixed pipeline joint and the contact surface of the hose connection end are tightly pressed, with sufficient compensation and good sealing and pressure holding performance under eccentric load.
4. The use of a hose connection device ensures accurate alignment of the hose joints, which are locked tightly by threads after alignment. After repeated use of vulnerable parts (springs, spindles, etc.), there was no damage, jamming, or severe wear, and the connection and disconnection of hoses were still smooth.
Structural characteristics of lightweight composite hose:
Composite hoses are generally composed of three main parts: composite hoses, mesh sleeves, and connectors. Composite hose is the body of composite hose, which plays a role in flexibility; The net cover plays a role in increasing and blocking; The connector plays a connecting role. For different usage requirements, the ways in which they are connected to each other are different: the composite hose, mesh sleeve, and joint are connected by welding, which is called welding type; Connecting in the form of mechanical clamping is called mechanical clamping type; In addition, there is also a combination of the above two methods called hybrid.
Scope of application for lightweight composite hoses:
Sufficient flexibility is required for conveying pipes to prevent piping in vibration prone areas, suitable for steam, gas, air, heavy oil, petroleum, chemical products, etc.
Lightweight composite hoses have good flexibility and are not afraid of temperature or pressure. They are suitable for transporting media such as steam, water, oil, and various industrial gases and products. Thermal expansion absorption and vibration absorption play important roles in the movement of pipeline systems. The model length and connection method are based on user requirements.