Leakage cause analysis and judgment: 1. Leakage during installation static test. After the installation and debugging of the mechanical seal, it is generally necessary to conduct a static test and observe the leakage amount. If the leakage is small, it is mostly due to problems with the dynamic or static ring sealing ring; When the leakage is large, it indicates a problem between the dynamic and static friction pairs. On the basis of preliminary observation of the leakage amount and judgment of the leakage location, manually turn the machine to observe. If there is no significant change in the leakage amount, there is a problem with the static and dynamic ring sealing rings; If there is a significant change in leakage during turning, it can be concluded that there is a problem with the friction pair between the dynamic and static rings; If the leaking medium is sprayed along the axial direction, there are mostly problems with the dynamic ring sealing ring. If the leaking medium is sprayed around or leaks out of the water cooling hole, it is mostly due to the failure of the static ring sealing ring. In addition, leakage channels can also exist simultaneously, but there are generally primary and secondary differences. As long as you observe carefully and are familiar with the structure, you can definitely make a correct judgment.

When using a self priming centrifugal pump for the first time, it is necessary to check whether the pump body is fixed properly to prevent loosening when the motor is turned on. This leads to leakage of the interface. Before connecting the pump body power supply, check the integrity of the power cord and plug. To prevent electric shock accidents, corresponding protective measures such as short-circuit circuit breakers must be installed. 3. The working voltage range of the pump body should be around the rated voltage and should not exceed too much. Otherwise, it will shorten the service life of the motor and even burn it out. 4. Although self priming centrifugal pumps have strong self priming ability, they still need to be filled with water when first used, but in the future, there is no need to inject water. When using a self priming centrifugal pump, it is important to keep the motor dry to prevent corrosion or short circuits due to humidity. And attention should be paid to the decrease in water level. The bottom valve of the self priming centrifugal pump should not be exposed to the water surface, otherwise it will cause the self priming pump to spin and damage it.

As a common type of self priming pump, sewage lift pump is a pump product that integrates pump, motor, casing, and control system. It can be used for sewage lift in homes, villas, small and medium-sized commercial places, and can also work on the ground or underwater. As a pump with a relatively large proportion in the pump industry, it is widely used in enterprise production and daily life. Although sewage lift pumps are widely used in many enterprises and factories. However, the vast majority of people do not know how to maintain it well. A good maintenance method can not only increase the lifespan of the machine, but also greatly reduce equipment failures without affecting work efficiency. As a well-known expert in acid and alkali resistant pump production, Sanchuan Hong Pump Industry offers you these ten great tips: (1) Manually inspect the pump, pipelines, and joints for looseness; Regularly check the wear of the shaft sleeve, and replace it in a timely manner after significant wear. (2) Add bearing lubricating oil to the bearing body, observe that the oil level should be at the centerline of the oil mark, and replace and replenish it in a timely manner. (3) Unscrew the water intake plug of the pump body and inject water (or slurry); Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline. (4) Check if the motor rotation is correct. After the pump operates normally, open the outlet pressure gauge and the inlet vacuum pump. When the appropriate pressure is displayed, gradually open the gate valve and check the motor load condition.

Advantages: 1. Strong corrosion resistance: Ceramic materials have excellent corrosion resistance, which can effectively resist the erosion of various corrosive media such as acids and alkalis, and extend the service life of pumps. 2. Good abrasion resistance: ceramic Hardness has high hardness and good abrasion resistance, which can effectively reduce the abrasion process of the pump when transporting wastewater containing sand and particles. 3. Good sealing performance: The wastewater ceramic pump adopts mechanical seal or packing seal, which has good sealing performance and avoids the leakage of media inside the pump body. Disadvantages: 1. High price: The production cost of ceramic materials is relatively high, so the price of wastewater ceramic pumps is relatively high. 2. Susceptible to impact: Ceramic materials have poor impact resistance, so it is necessary to pay attention to preventing severe impact during installation and use to avoid damage and damage to the pump. 3. Low reliability: The reliability of ceramic materials is relatively low, so frequent maintenance and upkeep are required to ensure the normal operation of the pump.

1. Choose the appropriate pump material: Different media have different requirements for pump materials, so choosing the appropriate pump material is very important. Common pump materials include stainless steel, plastic, ceramics, etc. 2. Correct installation: During installation, it is necessary to ensure the horizontal installation and firm fixation of the pump. After installation, pipeline connections should be made. It is strictly prohibited to support the pump body with pipelines. In addition, it is necessary to ensure good water tightness at the suction port. 3. Regular inspection: regularly check whether each part of the pump is normal, such as whether the pump body, impeller, bearing, etc. are worn or loose, and timely maintain and replace them. 4. Pay attention to the temperature and concentration of the medium: the temperature and concentration of the medium have a great impact on the performance and life of the pump. It is necessary to select the appropriate pump type and material according to the characteristics of the medium to avoid the wear and damage of the pump caused by overheating or excessive concentration of the medium. 5. Operating specifications: When using, it is necessary to operate according to the operating specifications. Overload operation and reverse operation are prohibited to avoid damage to the pump. In short, for the use of corrosion-resistant chemical pumps, it is necessary to choose appropriate pump types and materials, install them correctly and conduct regular inspections, pay attention to the temperature and concentration of the medium, and operate strictly in accordance with operating specifications to ensure the normal operation and service life of the pump.