A pretreatment device for supplying water to an ultrapure water machine

Abstract

The invention discloses pretreatment equipment for water supply of an ultra-pure water machine. The equipment comprises a pretreatment system and a water storage system, wherein the pretreatment system comprises a water treatment reactor; the water storage system comprises a water storage tank; a water inlet end of the water treatment reactor is communicated and connected with a tap water pipe; a valve switch is also arranged on a water pipeline between the tap water pipe and the water treatment reactor; a water outlet end of the water treatment reactor is communicated and connected with a water inlet end of the water storage tank; a water outlet end of the water storage tank is communicated and connected with a water inlet end of the ultra-pure water machine; the equipment further comprises a control feedback unit; the control feedback unit comprises an electromagnetic valve and a resistivity monitoring device; the resistivity monitoring device and the electromagnetic valve are connected in series with a water pipeline between the water treatment reactor and the water storage tank; the electromagnetic valve is located on a water outlet side of the resistivity monitoring device; the resistivity monitoring device and the electromagnetic valve are electrically connected with an on-line feedback system. The equipment can improve influent quality of the ultra-pure water machine and prolong the service life of the ultra-pure water machine.

Description

technical field [0001] The invention relates to the technical field of water treatment; in particular, it relates to a pretreatment device for supplying water to an ultrapure water machine. Background technique [0002] Ultrapure water machine is a kind of water purification equipment that uses multi-stage filter elements for water purification treatment. Physical methods such as filtration, adsorption, and reverse osmosis without adding chemical substances are mostly used for treatment. Laboratory pure water machines generally use ultra-pure water machines to produce ultra-pure water. At present, there are many problems that need to be improved in the common ultrapure water machines, and the main problems are as follows: [0003] 1. The quality of municipal tap water is unstable. If it does not meet the water quality requirements of the ultrapure water machine, it is easy to pollute and block the filter element in the pure water machine, which will lead to the substandard ...

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Problems solved by technology

[0003] 1. The quality of municipal tap water is unstable. If it does not meet the water quality requirements of the ultrapure water machine, it is easy to pollute and block the filter element in the pure water machine, which will lead to the substandard water quality and affect the use of the ultrapure water machine. life;

[0004] 2. When the ultra-pure water machine filters impurities in water, the filter performance of the filter element will decrease as the filter element is used for a long time. The quality of the water filtered by the water purifier is closely related to the filter element. In order to ensure the safety of the effluent water quality The filter element is replaced too frequently due to the nature of the ultrapure water machine, which greatly increases the use cost of the ultrapure water machine;

[0005] 3. If most of the existing ultrapure water machines have not produced water for a long time, the water in the purification system will be in a static state for a long time, which is easy to breed bacteria. After a long time, qualified ultrapure water will be produced, thus causing a waste of resources, and the bacteria that grow will affect the service life of the purification system

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