Working principle and structural characteristics of plunger pump
The plunger pump is an important device of the hydraulic system. It relies on the plunger to reciprocate in the cylinder to change the volume of the sealing working chamber to achieve oil absorption and oil pressure. The plunger pump has high rated pressure, compact structure and high efficiency. And convenient flow adjustment External wall insulation decorative integration board is the external wall insulation system and exterior decoration system combined into one. It can effectively improve the user's return on investment, improve project quality. Reduce energy consumption, greatly shorten the external wall insulation and decoration project duration. Exterior Insulation Board Exterior Insulation Board,External Wall Insulation Boards,Exterior Wall Insulation Board,Internal Wall Insulation Board UMS New Materials Industry Co.,LTD , https://www.ums-factory.com
Piston pump working principle Piston pump is an important device of hydraulic system. It relies on the plunger to reciprocate in the cylinder to change the volume of the sealing working chamber to achieve oil absorption and oil pressure. The plunger pump has high rated pressure. Compact structure, high efficiency and convenient flow adjustment, it is widely used in high pressure, large flow and flow adjustment applications such as hydraulic presses, construction machinery and ships.
The plunger pump belongs to a volume pump, and the plunger is driven to reciprocate by the eccentric rotation of the pump shaft, and the suction and discharge valves are both one-way valves. When the plunger is pulled out, the pressure in the working chamber is lowered, and the outlet valve is closed lower than the inlet pressure. The inlet valve opens the liquid to enter; when the plunger is pushed, the pressure of the working chamber rises and the inlet valve closes. When the pressure is higher than the outlet pressure, the outlet valve opens the liquid to discharge. When the drive shaft drives the cylinder to rotate, the swash plate pulls the plunger out of the cylinder. Or push back to complete the suction and discharge process. The oil in the working cavity composed of the plunger and the cylinder hole communicates with the suction and discharge chambers of the pump through the oil distribution plate respectively. The variable mechanism is used to change the inclination of the swash plate by adjusting the swash plate. The inclination of the pump can change the displacement of the pump.
Plunger pump structure:
The plunger pump is divided into two representative structures: an axial piston pump and a radial piston pump; since the radial piston pump belongs to a new type of high-efficiency high-efficiency pump, the radial column is continuously accelerated. Plug pump will inevitably become an important part of the application of plunger pump.
Piston pump maintenance:
The swash plate type axial piston pump generally adopts the form of cylinder rotation and end face distribution. The end face of the cylinder body is provided with a friction pair composed of a bimetal plate and a steel oil distribution plate, and most of them adopt a plane distribution method. Therefore, the maintenance is more convenient. The oil distribution plate is one of the key components of the axial piston pump. When the pump is working, on the one hand, the high pressure oil of the working chamber pushes the cylinder to the oil distribution plate, and on the other hand, between the oil distribution plate and the cylinder block. The oil film pressure forms a hydraulic reverse thrust force on the cylinder body to make the cylinder body face away from the oil distribution plate. The design hydraulic pressure FN of the cylinder body to the oil distribution plate is slightly larger than the hydraulic reverse thrust Ff of the oil distribution plate to the cylinder block, that is, Fn/Ff= 1.05~1.1 makes the pump work normally and maintains high volumetric efficiency.
Piston pump other types of products: high pressure pneumatic piston pump, pneumatic piston pump
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insulation Wall board decorative by the insulation layer, inorganic resin board, strong composite plastic, decorative coating composition, fire rating in full compliance with national fire inspection and acceptance standards.
External wall Insulation Decorative Board scope of application
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Three external insulation system briefing
First, EPS board insulation coating finishes system
introduction:
EPS board thin plaster Exterior Insulation Board system is composed of dry powder, insulation board, alkali-proof fiberglass mesh cloth and finishes layer wall insulation and decorative features in one of the new wall insulation structure system, EPS board Thin plaster insulation system is the most common at home and abroad, the most technologically mature external insulation system. The system uses EPS board paste exterior insulation, with the overall insulation effect, thermal conductivity is small, does not destroy the insulation layer, cut off the hot and cold bridges, there is no condensation point, good durability and so on.
Application:
The system is suitable for the construction of new building exterior wall thermal insulation finishing projects with concrete walls, lightweight filling masonry, clay bricks and other materials as well as energy-saving renovation of existing buildings.
Second, XPS board insulation coating finishes system
introduction:
XPS board insulation wall panel system is composed of dry powder, interface agent, insulation board, alkali-proof fiberglass mesh cloth and finishes layer wall insulation and decorative features in one of the new wall insulation structure system, XPS board Exterior insulation has the overall effect of thermal insulation, thermal conductivity is small, cut off the generation of hot and cold bridges, there is no condensation point, good durability and so on. At the same time, the light weight of such systems can effectively reduce the load on the load-bearing walls outside the building and the foundation load, reducing the basic handling costs of seismic fortification. Such systems can be vigorously promoted and popularized building energy-saving insulation system.
Application:
The system is suitable for the construction of new building exterior wall thermal insulation finishing projects with concrete walls, lightweight filling masonry, clay bricks and other materials as well as energy-saving renovation of existing buildings.
Third, plastic powder polystyrene insulation coating system
introduction:
Adhesive polystyrene particles insulation coating veneer system is composed of premixed dry-mixed mortar as the main binder, adding appropriate anti-cracking fibers and a variety of additives to polystyrene foam particles as lightweight aggregate, the proportion of configuration, The use of on-site molding plastering process, the material is easy and easy to operate, the construction efficiency is high, the overall performance of the material after molding is good. Avoid block material insulation, easy to crack joints, the construction process is simple. The system insulation layer and the main wall of the close bonding between, no cavity, hollowing phenomenon, effectively solve the wall insulation, heat insulation, crack resistance, fire resistance, water repellency, weather resistance, ventilation and other issues.
Application:
The system is suitable for the construction of new building insulation wall panels external finishing projects with concrete walls, lightweight filling masonry, clay bricks and other materials as well as energy-saving renovation of existing buildings.