消毒液加药计量泵流量偏小的故障原因与使用注意事项
在当前的防疫形势下，消毒剂加药装置的使用越来越多。在使用过程中，其核心部件之一的消毒剂加药计量泵出现问题的概率较高。例如，消毒剂加药装置工作时，流量过小。事实上，这是有原因的。下面介绍了几种VAREM计量泵流量过小的可能原因，并提供了相应的解决方案供大家参考！
消毒剂计量泵故障原因：
1、异物进入进出口止回阀，导致止回阀关闭不严
2、进出口止回阀磨损
3、液压油室内有空气
4、内置加油阀关不严
5、内置排气阀排气不正常
6、柱塞密封磨损
7、液压油品牌不对
8、行程速度与模型不一致
9、双隔膜之间的排气不足
10、双膜片间排气门内漏
解决方案：
1、拆下入口和出口止回阀进行清洁或更换
2、更换止回阀总成或阀球和阀座
3、排出液压油室。您可以添加机油排气或保持压力释放排气
4、更换内置注油阀
5、更换或清洁内置排气阀
6、更换柱塞密封件
7、更换正确品牌的液压油
8、如果行程速度不一致，更换蜗轮/蜗杆组件
9、对双隔膜总成排气并用真空吸尘
10、更换双膜片总成排气阀
最近，VAREM消毒剂计量泵的一些客户问：您能对计量泵扬程的解决方案提出一些建议吗？化学品引起泵头/密封损坏时会出现什么问题，如何防止？在WATERSUNNY计量泵扬程方面，一般问题出现在酸、氯、氟化物和过氧化氢的测量环境中。由于药物浓度和温度的差异，超精密泵头材料的确定比较困难。
如何调节VAREM消毒剂加药计量泵的背压阀？
1） 当消毒剂计量泵吸入端有压力时，泵的实际压力应至少比吸入端的压力高1巴。
2） 不要越过VAREM消毒剂计量泵的允许压力。
安全阀的压力可在计量泵的额定压力范围内调节，不允许越过计量泵的允许压力。安全阀用于防止计量泵超压运行。例如，如果计量泵的允许压力为3bar，则安全阀的压力应设置为3bar，并应尽可能降低，以保证钛龙计量泵的正常运行。超压事故是VAREM消毒剂加药计量泵损坏的原因之一。
消毒剂加药计量泵可测量输送液体的刚度，常用于各类试剂加药成套设备中，故又称加药泵。因此，VAREM消毒剂加药计量泵是一种能满足各种苛刻工艺流程的泵。流量可在0-100%范围内无级调节。消毒剂计量泵是一种用于输送液体（特别是腐蚀性液体）的专用容积泵。
Causes of small flow of disinfectant dosing metering pump and precautions
In the current epidemic situation, more and more disinfectant dosing devices are used. In the process of use, the probability of problems of disinfectant dosing metering pump, one of its core components, is high. For example, when the disinfectant dosing device works, the flow is too small. In fact, there is a reason. The following introduces several possible reasons for small flow of VAREM metering pump, and provides corresponding solutions for your reference!
Cause of failure:
1. Foreign matters enter the inlet and outlet check valves, resulting in the check valve not closed tightly
2. Wear of inlet and outlet check valves
3. There is air in the hydraulic oil chamber
4. The built-in refueling valve is not closed tightly
5. Abnormal exhaust of built-in exhaust valve
6. Wear of plunger seal
7. Wrong brand of hydraulic oil
8. The travel speed is inconsistent with the model
9. Insufficient exhaust between two diaphragms
10. Internal leakage of exhaust valve between two diaphragms
Solution:
1. Remove the inlet and outlet check valves for cleaning or replacement
2. Replace check valve assembly or ball and seat
3. Drain the hydraulic oil chamber. You can add oil to exhaust or keep the pressure to release the exhaust
4. Replace the built-in oil filling valve
5. Replace or clean the built-in exhaust valve
6. Replace the plunger seal
7. Replace the correct brand of hydraulic oil
8. If the travel speed is inconsistent, replace the worm gear / worm assembly
9. Exhaust the double diaphragm assembly and vacuum it
10. Replace the exhaust valve of double diaphragm assembly
Recently, some customers of VAREM disinfectant metering pump asked: can you give some suggestions on the solution of metering pump head? What problems will occur when the pump head / seal is damaged by chemicals and how to prevent them? In the aspect of watersunny metering pump head, the general problems appear in the measurement environment of acid, chlorine, fluoride and hydrogen peroxide. Due to the difference of drug concentration and temperature, it is difficult to determine the material of ultra precision pump head.
How to adjust the back pressure valve of VAREM disinfectant dosing metering pump?
1) When there is pressure at the suction end of the metering pump, the actual pressure of the pump should be at least 1 bar higher than the pressure at the suction end.
2) Do not exceed the allowable pressure of the VAREM disinfectant metering pump.
The pressure of the safety valve can be adjusted within the rated pressure range of the metering pump, and it is not allowed to exceed the allowable pressure of the metering pump. The safety valve is used to prevent the metering pump from overpressure operation. For example, if the allowable pressure of the metering pump is 3bar, the pressure of the safety valve should be set to 3bar and should be reduced as far as possible to ensure the normal operation of the Tailong metering pump. Overpressure accident is one of the reasons for the damage of VAREM disinfectant dosing metering pump.
Disinfectant dosing metering pump can measure the stiffness of liquid delivery, which is commonly used in all kinds of reagent dosing equipment, so it is also called dosing pump. Therefore, VAREM disinfectant dosing metering pump is a kind of pump that can meet various harsh process flow. The flow rate can be adjusted steplessly in the range of 0-100%. It is a kind of special positive displacement pump for conveying liquid (especially corrosive liquid).