High-sealing-performance intelligent quality check type centrifugal pump

Abstract

The invention discloses a high-sealing-performance intelligent quality check type centrifugal pump. The high-sealing-performance intelligent quality check type centrifugal pump comprises a base, a pump body, a sealing mechanism, a check valve, a flow measurement mechanism and a concentration measurement mechanism. One axial end of the pump body is provided with a pump body flange. The sealing mechanism comprises a sealing seat, a first seal ring, a second seal ring, a pressure detection mechanism and a regulating mechanism. The sealing seat is arranged on the outer surface of the pump body, and a sealed cavity is formed between the sealing seat and the pump body. The sealing seat is connected with the pump body flange. The first seal ring and the second seal ring are arranged in the sealed cavity, and a pressure cavity is formed between the first seal ring and the second seal ring. The pressure detection mechanism is connected with the interior of the pump body. The regulating mechanism is connected with the pressure cavity. The pressure detection mechanism of the high-sealing-performance intelligent quality check type centrifugal pump is used for detecting the internal pressure of the pump body. When the internal pressure of the pump body exceeds a certain value, the regulating mechanism is closely attached to the first seal ring and the second seal ring. Seal failures are avoided. The sealing effect is guaranteed.

Description

technical field [0001] The invention belongs to the technical equipment field of centrifugal pumps, and in particular relates to an intelligent quality non-return centrifugal pump with high sealing performance. Background technique [0002] A centrifugal pump refers to a pump that delivers liquid by the centrifugal force generated when the impeller rotates. Centrifugal pumps work by rotating the impeller to cause the water to move centrifugally. Before starting the pump, the pump casing and the suction pipe must be filled with water, and then the motor is started to drive the impeller and the water to rotate at a high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller, and flows through the volute pump casing. The pressure water pipeline flowing into the water pump. [0003] The centrifugal pumps in the prior art have the following problems: [0004] 1. There are flanges installed on the pump body of the centrifugal pump. The cen...

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Problems solved by technology

At present, sealing rings are generally used for sealing. In the case of long-term internal pressure changes in the pump body, the sealing rings are prone to failure, and the sealing effect cannot be achieved.

[0005] 2. The centrifugal pump does not use a check valve. After the pump is closed, the liquid will flow back, causing the impeller to turn over and the nut will become loose. In this case, the water pump will generate pressure. Turn it over, the impeller nut will loosen and fall off, and the water pump will be damaged

[0006] 3. The centrifugal pump cannot measure the flow rate during use. When the centrifugal pump fails, its flow rate will fluctuate, which will affect the normal production work. Therefore, a digital metering centrifugal pump is needed to be able to transport the centrifugal pump. The flow rate is measured, which is convenient for detecting the working state of the delivery pump, and at the same time, it is convenient for adjusting the flow rate to achieve good production control

[0007] 4. The centrifugal pump only plays the role of transporting the liquid during use, but the measurement of the liquid concentration cannot be realized during the liquid transport process. When the liquid undergoes material precipitation and the liquid concentration is uneven, the staff cannot detect it and cannot carry out The adjustment of liquid concentration leads to a decline in production quality, so a centrifugal pump for automatic concentration collection is needed, which can automatically collect liquid concentration during liquid transportation, so that the staff can control the concentration of the liquid to improve production quality

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