Ram pump with energy-saving noise-reduction improvement structure

Abstract

The invention belongs to a pump device, aiming to provide a ram pump with an energy-saving noise-reduction improvement structure. The ram pump comprises an impact valve and a water inlet valve which are connected to a pump body, and the water inlet valve is connected with an air chamber; the impact valve comprises a vertical valve body with a drum-type cylindrical middle part, and the upper end and the lower end of the impact valve are respectively provided with a tubular connecting part which is connected with a flange; the size of the flange at the lower end of the impact valve is matched with a pump body flange of the ram pump, and the size of a central hole of the flange at the upper part is adapted to the diameter of a valve rod; the valve core of the impact valve is provided with a round-table-shaped upper part and a spindle-shaped lower part, and the upper part and the lower part are transited smoothly; the central part at the top end of the valve core is connected with the valve rod, and the valve rod upward penetrates through the upper end flange; and the valve rod is provided with a fixed limit block, and an elastic gasket is arranged between the limit block and the upper end flange. According to the invention, the loss and impact noise of water flow energy are reduced effectively, the ram pump is firm and durable, and defects that because a spring is used to change balance weight, the traditional ram pump is easy to rust and damage and components are difficult to replace are overcome.

Description

technical field [0001] The invention belongs to pump equipment and relates to a water hammer pump with an improved energy-saving and noise-reducing structure. Background technique [0002] The water hammer pump is a kind of advanced water lifting device that uses flowing water as the power and produces a water hammer effect to convert low water head energy into high water head energy through mechanical action. It does not require any prime mover (electric motor, internal combustion engine or steam engine) to drag, so no power consumption, no fuel consumption, and no lubricating oil. It is simple in structure, easy to manufacture, easy to operate and maintain, and durable. It is a good water-lifting tool for building drought-resistant farmland in a mountainous and hilly area quickly, efficiently and economically, and it is also an excellent water-lifting tool for solving animal husbandry, forestry, industrial and domestic water in areas with water resources. However, today'...

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Problems solved by technology

[0004] The water inlet valve also has the same problem. The opening and closing performance of the water inlet valve of the traditional water hammer pump is poor, and the design of the water inlet valve is too complicated. The one-way conduction of the water inlet valve is often realized through the mechanical action of the valve core or its own weight. There is a large delay in the opening and closing of the valve, which causes a large amount of water to flow back into the pump body from the air chamber, reducing the water lifting efficiency of the water hammer pump.

Some people consider using a spherical valve and a hollow valve with an inner filling body to improve the performance of the water inlet valve, but they are difficult to meet the high-frequency work requirements

[0005] The air chamber of the traditional water hammer pump uses ordinary iron or steel tanks. The water is in contact with the inner wall of the air chamber, which is prone to dissolved oxygen corrosion and electrochemical corrosion. In addition, due to the sharp change of the pressure in the air chamber, the The small air bubbles brought in by the movement will cause cavitation on the inner wall. These damages will cause excessive fatigue and damage to the air chamber, and prone to cylinder explosion. Therefore, the work of the traditional water hammer pump is unstable and unreliable.

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