LYJY加药装置的选型方法及加药泵的隔膜片更换方法
1、用户在选择一套完整的加药装置时，应根据系统所需的溶液量确定选择规格（包括加药泵参数、搅拌罐容积、溶液罐容积、现场条件等），然后由加药装置的生产厂家确定加药方式根据加药情况（一般采用“一人一备”或“一人多备”的方式）；
2、根据需要，选择辅助加药装置部件的材质（不锈钢、碳钢、非金属材料）、加药泵（隔膜泵、柱塞泵）的厂家型号或投加化学品的参数（名称、浓度、温度、密度、粘度、腐蚀性等）；
3、订货系统为多箱多泵；
4、加药泵是柱塞泵还是隔膜泵；
5、ZILMET加药泵流量、压力；
6、系统是手动控制还是自动控制；
7、加药装置的其他特殊要求。
ZILMET加药泵在目前的泵市场上使用越来越多，其中隔膜加药泵在特殊环境下使用较多，但在使用过程中，由于操作不当或其他原因，隔膜会损坏，一旦发现加药泵隔膜损坏而不及时更换，会造成不满意的结果，所以加药泵的隔膜会损坏，如何更换损坏的零件？介绍龙亚ZILMET加药泵的更换步骤。
1、拆下固定泵头的4个螺钉。螺钉位于加药泵的背面。
2、泵头松动后，在拆卸泵头之前，将行程长度调整到0%。它能保证电磁轴有足够的压力保持其连接的稳定，从而使隔膜能够被拧松。
3、从液压插座上向外拉螺丝。握住液体端并逆时针旋转。只要稍有阻力，隔膜就可以拧松。
4、隔膜拆除后，检查ZILMET加药泵安全隔膜完好，无损坏。安装一个新的膜片，顺时针旋转背板和膜片，直到它们拧紧为止。调整背板，使泄漏排放孔位于泵的底部Z。
5、隔膜安装完毕，背板泄漏孔处于垂直位置后，安装泵头。确保吸入阀与泄漏孔对齐，液压端的螺钉与相应的四个孔对齐。
6、旋转到笔划长度的100%。这样，就可以转动整套零件，直到背板泄漏孔与泵的底部Z端对齐为止。在加药泵运行过程中，将液压端和隔膜调整到正确的位置。
7、ZILMET加药泵液压端与背板调整好后，对角拧紧四个螺栓至合适为止。这项工作应该用力均匀。
好了，以上就是LYJY加药装置的选型方法和加药泵的隔膜片更换方法的讨论，更多加药装置和加药泵问题，欢迎与上海龙亚泵阀技术部探讨！
Selection method of LYJY dosing device and replacement method of diaphragm of dosing pump
1. When selecting a complete set of dosing device, the user should determine the selection specifications (including dosing pump parameters, mixing tank volume, solution tank volume, site conditions, etc.) according to the solution volume required by the system, and then the manufacturer of the dosing device determines the dosing method according to the dosing situation (generally, the method of "one person one standby" or "one person multiple standby" is adopted);
2. According to the needs, select the material of auxiliary dosing device components (stainless steel, carbon steel, non-metallic materials), the manufacturer model of dosing pump (diaphragm pump, plunger pump) or the parameters of dosing chemicals (name, concentration, temperature, density, viscosity, corrosivity, etc.);
3. The ordering system is multi tank and multi pump;
4. Is the dosing pump a plunger pump or a diaphragm pump;
5. Flow and pressure of ZILMET dosing pump;
6. Whether the system is controlled manually or automatically;
7. Other special requirements of dosing device.
Zilmet dosing pump is used more and more in the current pump market, in which diaphragm dosing pump is used more in special environment. However, in the process of use, the diaphragm will be damaged due to improper operation or other reasons. Once the diaphragm of dosing pump is found damaged and not replaced in time, it will lead to unsatisfactory results. Therefore, the diaphragm of dosing pump will be damaged. How to replace the damaged parts? The replacement procedure of Longya pump is introduced.
1. Remove the four screws that hold the pump head. The screw is located on the back of the dosing pump.
2. After the pump head is loose, adjust the stroke length to 0% before removing the pump head. It can ensure that the electromagnetic shaft has enough pressure to keep its connection stable, so that the diaphragm can be loosened.
3. Pull the screw outward from the hydraulic socket. Hold the liquid end and rotate counterclockwise. As long as there is a little resistance, the diaphragm can be loosened.
4. After the diaphragm is removed, check whether the safety diaphragm of ZILMET dosing pump is in good condition without damage. Install a new diaphragm and rotate the back plate and diaphragm clockwise until they are tight. Adjust the back plate so that the leakage drain hole is located at the bottom Z of the pump.
5. After the diaphragm is installed and the back plate leakage hole is in the vertical position, install the pump head. Make sure that the suction valve is aligned with the leak hole and that the screw on the hydraulic end is aligned with the corresponding four holes.
6. Rotate to 100% of stroke length. In this way, the whole set of parts can be rotated until the back plate leakage hole is aligned with the bottom Z end of the pump. During the operation of the pump, adjust the hydraulic end and diaphragm to the correct position.
7. After adjusting the hydraulic end and back plate of zilmet dosing pump, tighten four bolts diagonally until they are suitable. The work should be done evenly.
Well, the above is the discussion of LYJY dosing device selection method and dosing pump diaphragm replacement method. More dosing device and dosing pump problems are welcome to discuss with Shanghai Longya pump valve technology department!