How to ensure the stable operation of Parker Denison Vane Pumps under extreme working conditions such as high pressure and high temperature?

In order to ensure the stable operation of Parker Denison Vane Pumps under extreme conditions such as high pressure and high temperature, it is necessary to consider and optimize from multiple aspects such as design, materials, sealing, cooling and maintenance. Here are some key measures to ensure stable operation under extreme conditions:

Selection of high-quality materials
In high-pressure and high-temperature environments, the performance and durability of the pump directly depend on the materials used. To ensure stable operation, Parker Denison vane pumps need to select materials with high pressure resistance, high temperature resistance and corrosion resistance.

High-temperature resistant materials: The pump body and blades need to be made of high-temperature resistant materials. Usually, high-temperature resistant alloys or special steels are used. These materials can withstand thermal expansion and mechanical stress in high-temperature environments to avoid deformation or damage due to excessive temperature.

Pressure-resistant materials: The working pressure of vane pumps is often high, so the materials of the pump body, blades and seals need to have strong compressive strength to prevent cracking or deformation under high pressure.

Corrosion-resistant coating: Especially in corrosive environments, such as seawater or chemical media, the pump body shell can use special corrosion-resistant coatings to enhance the durability of the pump.
Strengthen the design of sealing system
The sealing system is the key to ensure the stable operation of hydraulic pumps under high pressure and high temperature environment. High pressure and high temperature will cause aging, damage and leakage of seals, so special attention should be paid to the sealing design:
Use sealing materials that can withstand high temperature and high pressure: Conventional rubber seals may age rapidly under high temperature. Therefore, Parker Denison vane pumps will use high-performance sealing materials, such as fluororubber (FKM), polytetrafluoroethylene (PTFE), etc., which can maintain sealing performance for a long time under high temperature.

Multiple sealing design: Double sealing or mechanical sealing system is adopted, which not only improves the sealing performance, but also effectively prevents liquid leakage caused by pressure difference inside and outside the pump body.
Good installation and inspection of seals: Ensure that the seals are not damaged during installation, and check the condition of the seals regularly to avoid hydraulic oil leakage due to seal failure, resulting in pressure reduction or contamination.
Optimize the cooling system
High temperature environment will aggravate the temperature increase of hydraulic oil, which will affect the performance and life of the pump. Therefore, reasonable cooling design is the key to ensure the stable operation of the pump under high temperature.
Hydraulic oil cooling system: In the hydraulic system, an oil cooler is usually installed to effectively reduce the temperature of the hydraulic oil through the cooler to ensure that the operating temperature of the pump is within a safe range.
Pump body cooling: Some Parker Denison vane pump designs use external cooling circulation, and the outer shell of the pump body is designed with cooling pipes or heat sinks to enhance the heat dissipation capacity.
Use high-temperature hydraulic oil: Selecting high-temperature stable hydraulic oil (such as anti-oxidation and anti-corrosion oil) can slow down the deterioration of the oil at high temperatures to a certain extent and extend the service life of the pump.
Optimize pump body structure and design
In order to improve the working stability of the vane pump under extreme working conditions, the structural design of the pump body also needs to fully consider the effects of high pressure and high temperature.
Thicken the pump body and blade structure: During the design, the thickness of the pump body and blades can be thickened according to the pressure required to withstand, thereby increasing the bearing capacity of the pump body and preventing structural rupture under high pressure.
Optimize the contact surface design of the blade: The contact surface between the blade and the pump body needs to be precisely processed to reduce friction and ensure sealing. Reasonable contact surface design can avoid the expansion and deformation of the blade at high temperature and maintain a good working condition.
Avoid thermal expansion caused by high temperature: By designing structures that can tolerate thermal expansion, such as appropriate gaps and heat-resistant components, the pump body can be prevented from deformation or damage due to thermal expansion under high temperature conditions.
Efficient pressure regulation and protection design
To ensure the stable operation of the pump under high pressure, pressure regulation and protection design are essential.
Pressure protection valve: Parker Denison vane pumps are usually equipped with pressure regulating valves or safety valves, which can automatically release pressure when the pump pressure exceeds the set value to prevent the pump and hydraulic system from being damaged due to overpressure.
Pressure sensor and monitoring system: By integrating pressure sensors and real-time monitoring systems, the working pressure of the hydraulic system can be monitored in real time. If the system pressure exceeds the safe range, the system will automatically alarm or start protection measures.

Through these comprehensive measures, the durability, stability and safety of the vane pump can be improved, the service life of the pump can be extended, and it can be ensured to operate reliably at all times in harsh environments.