Instructions for the operation of reverse osmosis, the operation of the reverse osmosis membrane dev

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Operation of reverse osmosis membrane device and its backwashing operation: In order to ensure the long-term stable operation of the reverse osmosis system, it is necessary to configure the backwashing system, chemical dispersion cleaning system (optional), cleaning system and compressed air system. 1. Backwash systemThe backwash system includes a backwash water tank, a backwash water pump and a sodium hypochlorite dosing device.

The reverse osmosis water for the reverse osmosis water of the backwash tank is generally used for reverse osmosis, so it is possible to use a reverse osmosis water production tank instead of a separate backwash tank. Due to the frequent backwash technology, the reverse osmosis of the backwash pump should be set up separately. The parameters of the backwash pump can be selected as follows:

In order to inhibit the growth of bacteria in the membrane module, the sodium hypochlorite dosing device can be set separately. There are two ways to dosing: one is to add 1 5 pp mnaclo continuously or 10 15 pp mnaclo to the inlet water continuously for 30 to 60 minutes, once a day.

The other is to add 10 to 15 ppm naclo in the backwash water. The sodium hypochlorite dosing device includes the following equipment: hall concealment 2, chemical enhanced backwash system For raw water with poor water quality, it is recommended to increase chemical enhanced backwash during system operation.

Choose one of the acid or alkali washing devices, or both, according to the water quality. The equipment of the chemical dispersion noisy section cleaning system consists of a dosing box and a metering pump. The reverse osmosis inlet water of the chemically strengthened backwash acid dosing device may contain colloids or suspended solids of iron, aluminum and other metals, and may also have scaling tendencies such as hardness rise and reputation, and these impurities may cause inorganic contamination of the reverse osmosis membrane.

In this case, it is recommended to add a certain concentration of acid solution in the backwashing process for chemical enhanced backwashing, and the acid used can be selected according to the specific raw water quality conditions, such as hydrochloric acid, oxalic acid or citric acid.

The operation of the reverse osmosis membrane device and its backwashing operation. Reverse osmosis membrane physical backwashing operation steps: (1) Stop the device slowly reduce the operating pressure and gradually stop the device.

The rapid drop in pressure caused by the rapid shutdown will form water hammer, which will cause impact damage to the pipes, pressure vessels and membrane elements. (2) Adjust the valve firstly, fully open the concentrated water valve; Then close the water inlet valve; Then open the permeate valve fully (e.g., if the permeate valve is closed after the system is closed). If the permeate valve is closed incorrectly, the membrane element at the back end of the pressure vessel may cause mechanical damage to the membrane element due to the back pressure of the permeate water.

3) Start the low-pressure cleaning pump first; Then slowly open the inlet valve while observing the flow rate of the concentrated water flow meter; Adjust the inlet valve until the flow rate and pressure are adjusted to the design value; Finally, after 10-15 minutes, slowly close the inlet valve and stop the inlet pump. Hope it helps. If my answer is helpful to you, please give a thumbs up (in the lower left corner of the whispered banquet line evaluation), look forward to your like, your efforts are very important to me, and your support is also the driving force for my progress.

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Working principle of reverse osmosis equipment:

The reverse osmosis equipment is to pass the raw water through fine filters, granular activated carbon filters, compression activated carbon filters, etc., and then pressurize through pumps, and use a reverse osmosis membrane (RO membrane) with a pore size of 1 10000 m (equivalent to 1 6000 of the size of E. coli and 1 300 of viruses) to make the higher concentration of water become low concentration water, and at the same time isolate all the impurities mixed into the water such as industrial pollutants, heavy metals, bacteria, viruses, etc., so as to meet the physical and chemical indicators and health standards specified for drinking. Producing pure and pure water, it is the best choice for the human body to replenish high-quality water in a timely manner. Because the purity of the water produced by RO reverse osmosis technology is the highest among all the water production technologies currently mastered by human beings, and the cleanliness reaches almost 100%, people call this water production machine reverse osmosis purified water machine.

How to install reverse osmosis pro! Hello, happy to answer your <>The installation steps for pro-reverse osmosis are:

Reverse osmosis water purifier installation - assembly machine 1Install the filter element, the order is PP cotton, granular activated carbon, PP cotton from right to left. There is no direction for PP cotton installation, and one end of granular activated carbon with rubber pad corresponds to the direction of the machine head.

At the same time, put the rubber pad away and remove the heat shrink film. Check whether there are too many defects in the sealing surface, bad and sealing ring, apply some medical petroleum jelly to the sealing ring, and tighten it with a wrench. 2.

Install the RO film, the direction of the RO film, with two small sealing rings at one end facing inward, push to the end with your hand (you can wipe a little petroleum jelly), and you can't use the cover to push or smash it. Check whether there are major defects in the sealing surface and ring, the sealing ring on the shell cover must be placed on the membrane shell, and apply a little petroleum jelly, tighten it by hand, and petroleum jelly plays the role of lubrication and sealing. 3.

Check that the inlet pipe and the outlet of the pure water are not reversed, and the purified water connection outlet is a check valve. Close and confirm that the main valve is closed, (open the faucet without running water). Old pipes should be reminded that they are extremely fragile, and users should be reminded to find experienced personnel or property department to assist.

Remove the faucet, install the water tee and ball valve, wrap the raw meal belt, and then install the faucet. After installation, confirm that there is no water leakage, choose a reasonable installation location, as far as possible from the water source, power supply, and drainage inlet, hang it, and put it in the kitchen cabinet. Select the appropriate water outlet position, use an electric drill to open the hole at a constant speed, the hole diameter is 11 mm, and install the faucet directly.

Fix the hanging piece (leave the pipe allowance below, more than 10 cm away). Install the faucet, put the decorative parts on well, and fix it firmly. First of all, check whether the outer packaging identification of the reverse osmosis water purifier is the same as the model required by the buyer

Check whether the invoice or sales invoice is consistent with the name of the buyer**, and require that the outer packaging is free of defects and damage; The identification and model are required to be consistent with the customer's requirements, and secondly, after opening the package, check whether the split box, accessory box, warranty card, manual and certificate are complete and whether there are defects. Hope mine can help you <>

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