Types Of Pumps Commonly Used In Air Conditioning Water Systems

- Aug 26, 2019 -

Type of commonly used water pump

The circulating pumps used in air conditioning water systems are centrifugal pumps.

According to the installation form of the water pump, there are horizontal pumps, vertical pumps and pipeline pumps; according to the structure of the water pump, there are single suction pumps and double suction pumps.

Horizontal pump - is the most commonly used air-conditioning pump, its structure is simple, the cost is relatively low, the running stability is good, the noise is low, the vibration damping design is convenient, the maintenance is relatively easy, but it needs to occupy a certain area.

Horizontal pump

Vertical pump - When the machine room is relatively tight, a vertical pump can be used. Since the motor is located in the upper part of the water pump, its aspect ratio is larger than that of the horizontal pump, so the stability of operation is not as good as that of the horizontal pump. The vibration damping design is relatively difficult, and the maintenance difficulty is larger than that of the horizontal pump. Generally higher in price than horizontal pump

Vertical pump

Vertical pump multistage pump

Vertical multistage pump

Pipeline pump—is a special form of vertical pump. Its biggest feature is that it can be directly connected to the pipe, so it does not occupy the room area. But it is also required that its weight should not be too large. The domestic pipeline pump motor capacity does not exceed 30kW.

Pipeline pump

Shielded pipeline pump

Pipeline pump

Angle pipe pump

Pipeline pump

Single suction pump - characterized by water flowing in from the central axis of the pump, the hydraulic efficiency of discharging it radially after being pressurized by the impeller is not too high, and there is axial thrust during operation. This type of pump is simple to manufacture and has a low price, so it is widely used in air conditioning engineering.

Single stage pump

Double suction pump - it uses water on both sides of the impeller, its hydraulic efficiency is higher than the single suction pump of the same parameters, and the axial imbalance force in operation is also eliminated. The flow rate of the pump is large. The construction of such a pump is complicated, the manufacturing process is high, and the price is relatively expensive. Therefore, double suction pumps are often used in air conditioning water systems with large flow rates.

Two-stage pump

Shaft-open double suction pump (vertical water inlet)

Double suction pump

The circulating water pump for air conditioning water system commonly used in engineering has:

Horizontal single-stage single-suction centrifugal pump;

Up and down single-stage single-suction centrifugal pump;

Double suction pump for air conditioning;

Vertical double suction centrifugal pump;

Axial open type single stage double suction centrifugal pump;

Single-stage single-suction pipe centrifugal pump, etc.

Diesel engine pump Diesel engine fire pump.

The pressure resistance of the air-conditioning pump housing is 1.0 MPa, and the pressure resistance of the high-rise building water pump can reach 1.6 MPa (experimental pressure is 2.0 MPa).

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