Constant pressure water supply device of water preparing equipment for hemodialysis

Abstract

The invention discloses a constant pressure water supply device of water preparing equipment for hemodialysis. The device comprises a secondary filtration device (1), a product water conveying pipeline (3) and a constant pressure pipeline (7), wherein the product water conveying pipeline (3) is provided with a valve A (2); the constant pressure pipeline (7) is provided with a valve B (6) and an automatic pressure adjusting valve (5); a valve B (6) is connected in parallel beside the automatic pressure adjusting valve (5); the two ends of the valve B (6) are communicated with the two ends of the automatic pressure adjusting valve (5) through water pipes. The device has the beneficial effects that the water pressure of the steady pressure pipeline can be adjusted through the automatic pressure adjusting valve so that water pressure conveyed in a hemodialysis machine is kept constant and adverse effects brought to the hemodialysis machine by water pressure change caused by previous equipment are avoided.

Description

technical field [0001] The invention relates to the field of water supply for hemodialysis equipment, in particular to a constant pressure water supply device for water production equipment for hemodialysis. Background technique [0002] The water making equipment for hemodialysis is a water treatment equipment specially required for hemodialysis. Patients may be exposed to more than 300L of water per week through the hemodialyzer or the semipermeable membrane of the hemodialysis filter. While a healthy person rarely consumes more than 12 liters of water per week, the amount of contact with water increases nearly 30 times. Therefore, water quality should be controlled and monitored to avoid excess of known or estimated harmful substances. The water used to prepare the dialysate is usually treated to a certain extent, and the water quality meets the specified requirements. The equipment performance of the water treatment system depends on the water quality of the raw water a...

AI Technical Summary

Problems solved by technology

[0003] Under the existing technical conditions, the existing water-making equipment for hemodialysis passes through two-stage reverse osmosis filtration after pressure regulation and initial filtration, without further processing of water pressure. If the pre-order equipment causes water pressure fluctuation range Larger, it may exceed the water pressure that the hemodialysis machine can withstand, affecting the use

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