Production water control method and device based on electric ball valve adjustment, ultrapure water preparation system
An electric ball valve and preparation system technology, applied in electrical program control, water/sewage treatment equipment, program control in sequence/logic controllers, etc. Water control process and method, avoidance control algorithm, and the effect of improving controllability
Active Publication Date: 2016-06-01
BEIJING MILLIIN MEDICAL TECH DEV
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Problems solved by technology
[0007] The purpose of the present invention is to provide a water production control method to solve the technical problem that the ultrapure water preparation system in the prior art cannot balance cost reduction and control precision improvement
[0008] Another object of the present invention is to provide a water production control device to solve the technical problem that the ultrapure water preparation system in the prior art cannot balance cost reduction and control accuracy improvement
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[0028] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the protection scope of the present invention, and the description and drawings therein are used for illustration in essence, rather than for limit the invention.
[0029] The water production control method of the embodiment of the present invention is applicable to the water production control device of the embodiment of the present invention, and is also applicable to the ultrapure water preparation device of the embodiment of the present invention.
[0030] The ultrapure water preparation system of the embodiment of the present invention has the water production control device of the embodiment of the present invention.
[0031] figure 1 It is a schematic structural diagram of an ultrapure water preparat...
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The invention discloses a water production control method and device based on electric ball valve adjustment, and an ultrapure water preparation system. The method includes: an initialization step, detecting the full opening and closing time of the concentrated water side drain electric ball valve and the return water electric ball valve, Obtain the unit opening and closing degree of the concentrated water side drainage electric ball valve and the return water electric ball valve; the opening and closing control step is to control the opening and closing of the concentrated water side drainage electric ball valve and the return water electric ball valve according to the unit opening and closing degree, and record the real-time opening and closing degree, And correct the real-time and unit opening and closing degree through the feedback of the detection signal; in the pressure difference calibration step, by adjusting the opening and closing degree of the concentrated water side drainage electric ball valve and return water electric ball valve, the concentrated water side of the reverse osmosis membrane reaches the target flow rate The pressure difference between the inlet side and concentrated water side of the reverse osmosis membrane is used as the target pressure difference; in the linkage adjustment step, the target pressure difference and target flow rate are achieved by adjusting the opening and closing degree of the high-pressure pump, the drainage of the concentrated water side and the electric ball valve of the return water . The invention reduces the cost and improves the control precision.
Description
technical field [0001] The invention relates to the technical field of ultrapure water preparation for medical use, in particular to a water production control method based on electric ball valve adjustment, a water production control device, and an ultrapure water preparation system with the water production control device. Background technique [0002] The ultrapure water preparation system for hemodialysis (referred to as the ultrapure water preparation system in this manual) needs to control the reverse osmosis membrane inlet side pressure and the reverse osmosis membrane concentrated water side flow and pressure to achieve the best use of the reverse osmosis membrane. state, to ensure the quality of ultrapure water for hemodialysis, and to improve the service life of the reverse osmosis membrane. [0003] The existing ultrapure water preparation system uses a manual ball valve on the concentrated water side of the reverse osmosis membrane to control the opening of each ...
Claims
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IPC IPC(8): C02F1/44G05B19/04
CPCC02F1/441C02F2103/04C02F2201/002C02F2301/06G05B19/04
Inventor 佟博弘孟宪伯李佳
Owner BEIJING MILLIIN MEDICAL TECH DEV