CN208672610U - The medical reverse osmosis water water quality on-line measuring device of hemo system - Google Patents

Abstract

By six separate units in the structure of the medical reverse osmosis water water quality on-line measuring device of hemo system: solenoid valve, conductance/pH value detection cabin, turbidity/chlorine residue detection cabin, peristaltic pump, chlorine residue reagent holding bay, control unit form；Solenoid valve, conductance/pH value detection cabin, turbidity/chlorine residue detection cabin, peristaltic pump, chlorine residue reagent holding bay are connected by pipeline；Control unit and above structure have electrical connection.It is made of on circuit eight parts: solenoid valve, Conductivity detection circuit, pH value detection circuit, LED laser source, Turbidity measurement circuit, chlorine residue detection circuit, peristaltic pump, control unit.Solenoid valve, LED laser source, peristaltic pump are connected with the output interface of control unit by conducting wire；Conductivity detection circuit, pH value detection circuit, Turbidity measurement circuit, chlorine residue detection circuit are connected with the input interface of control unit by conducting wire.The medical reverse osmosis water water quality on-line measuring device of hemo system has the characteristics that: 1, integrated level is high；2, on-line checking；3, reliability is high.

Description

The medical reverse osmosis water water quality on-line measuring device of hemo system

Technical field

The utility model relates to water quality detections, more specifically, being a kind of medical reverse osmosis water water quality on-line checking of hemo system Device.

Background technique

Haemodialysis is the main method of current treatment kidney failure, and the principle of dialysis is in patient body containing metabolism The blood of waste is guided to outside patient body by perfusion tube, then by one by the dialyzer that is formed without several hollow fibres to disease Human blood is filtered, and when flowing through dialyzate, dialyzate similar with concentration utilizes blood inside and outside hollow fibre one by one The physical principles such as disperse, ultrafiltration, absorption, convection current carry out mass exchange, the metabolic waste of human body in blood are filtered out, to reach To the purpose for removing intracorporal metabolic waste, to maintain the electrolyte and acid-base balance of patient blood.Meanwhile haemodialysis Journey can also remove the excess moisture in patient blood, and final hemo system is re-introduced into patient by conduit clean blood is filtered In vivo, entire dialysis procedure is completed.

Because malpractice occurs repeatedly both at home and abroad caused by water for dialysis poor water quality, the Philadelphia of the U.S. in 1988 chlorine ammonia thing Part causes 44 sufferers to be hospitalized, and Holland island Curacao in 1996 is led because aluminium is excessively high in no reverse osmosis machine 15 dialysis patient blood of cause Lethal to die, kidney center is washed because of carelessness of handing over to the next shift after the disinfection of water treatment facilities routine by the Hong Kong of in August, 1998 hospital, and remnants unconfirmed disappear Toxic agent, and dialysis treatment is carried out, cause 3 sufferers dead because of disinfectant poisoning, certain northern hospital's chlorine residue in 2008 is exceeded, leads Cause multiple patient's haemolysis.This accident repeated, and consequence is all quite serious, can not retrieve.

Haemodialysis uses reverse osmosis water as a kind of medicinal water, and as a kind of water for dialysis bottom liquid, it is useless to participate in blood In the physical processes such as diffusion, disperse, ultrafiltration, absorption, the convection current of object and utility；The quality of reverse osmosis water have to it is sufficiently high, Exceeded heavy metal, disinfectant cannot be contained, and also have stringent area requirement for pH value.Dialysis machine reverse osmosis water is most at present Not detect, or sampling check, such detection mode has the disadvantage that 1, can not real-time detection, sampling Detection Period is more dispersed, cannot achieve on-line real-time measuremen；2, reliability is not high, estimates water quality with a certain moment sample, does not have It is representative.These detection means are unable to ensure the water quality of water for dialysis each time it is impossible to meet the requirement of real-time detection.

Utility model content

A kind of medical reverse osmosis water water quality on-line measuring device of hemo system is designed, can not only be carried out before dialysis treatment anti- Infiltration water quality detection, can also be constantly to water quality detection during detection.It can not exist in real time to solve medical dialysis reverse osmosis water The problem of line detects, the medical reverse osmosis water water quality on-line measuring device effect of hemo system are as follows: 1, integrated level height；2, on-line checking；3, Reliability is high.

By six separate units in the structure of the medical reverse osmosis water water quality on-line measuring device of hemo system: solenoid valve, conductance/ PH value detects cabin, turbidity/chlorine residue detection cabin, peristaltic pump, chlorine residue reagent holding bay, control unit composition；Solenoid valve, conductance/pH Value detection cabin, turbidity/chlorine residue detection cabin, peristaltic pump, chlorine residue reagent holding bay are connected by pipeline；Control unit and above-mentioned knot Structure has electrical connection.Be made of on circuit eight parts: solenoid valve, Conductivity detection circuit, pH value detection circuit, LED laser source, Turbidity measurement circuit, chlorine residue detection circuit, peristaltic pump, control unit.Solenoid valve, LED laser source, peristaltic pump and control unit Output interface pass through conducting wire connect；Conductivity detection circuit, pH value detection circuit, Turbidity measurement circuit, chlorine residue detection circuit and The input interface of control unit is connected by conducting wire.

The function of each structure composition of the medical reverse osmosis water water quality on-line measuring device of hemo system are as follows:

1, solenoid valve: its state opened, closed is controlled by control unit, so that controlling reverse osmosis water to be measured enters detection In device.

2, conductance/pH value detects cabin: including Conductivity detection circuit and pH value detection circuit, can be used to detect reverse osmosis to be measured The conductivity and pH value of water, in which: Conductivity detection circuit: being mounted in conductance/pH value detection cabin, by detection probe with it is to be measured Liquid contact detecting, and can export electric signal and be sampled to control unit；PH value detection circuit: it is mounted on In conductance/pH value detection cabin, contact detecting with testing liquid by detection probe, corresponding electric signal can be exported To control unit, to complete to have the pH value of liquid to detect.

3, turbidity/chlorine residue detects cabin: including LED laser source, Turbidity measurement circuit and chlorine residue detection circuit, in which: LED Laser source: being exported by control unit and controlled, and is mounted on turbidity/chlorine residue detection one, cabin face, be used to Turbidity measurement circuit and The light source of chlorine residue detection circuit offer test；Turbidity measurement circuit: the turbidity for detecting testing liquid is mounted on LED and swashs In the adjacent side of light source, according to the scattering principle of liquid, measurement is scattered by impurity particle in liquid and is irradiated to measuring probe On intensity of illumination, illumination is stronger, and turbidity is higher, and converts optical signals into electric signal, export to control unit；Chlorine residue detection Circuit: being mounted on the right opposite in LED laser source, measures the intensity of illumination being irradiated on measuring probe, illumination is weaker, and chlorine residue contains Amount is higher, and converts optical signals into electric signal, exports to control unit.

4, peristaltic pump: peristaltic pump is one and is used to turbidity/chlorine residue detection cabin injection chlorine residue reagent water pump, single by control Member control, the water inlet of peristaltic pump are connected with chlorine residue reagent holding bay, and water outlet is connected with turbidity/chlorine residue detection cabin.

5, chlorine residue reagent holding bay: it is anti-that chlorine residue reagent holding bay is used to store the chlorine residue in chlorine residue detection process needed to launch Reagent is answered, the chlorine residue contained in chlorine residue reagent and testing liquid will generate glassy yelloe substance, and contents of residual chlorine is higher, liquid color Depth is higher, and liquid contents of residual chlorine value can be obtained by detecting color depth in chlorine residue detection circuit.

6, control unit: control whole system work, further, specifically: Output Interface Control solenoid valve, LED swash Light source, peristaltic pump；Input interface is used to handle Conductivity detection circuit, pH value detection circuit, Turbidity measurement circuit, chlorine residue detection electricity The input signal on road.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the utility model conductance/pH value detection cabin structure chart；

Fig. 3 is the utility model turbidity/chlorine residue detection cabin structure chart.

In Fig. 1: 1, solenoid valve；2, conductance/pH value detects cabin；3, turbidity/chlorine residue detects cabin；4, Conductivity detection circuit；5, PH value detection circuit；6, LED laser source；7, control unit；8, Turbidity measurement circuit；9, chlorine residue detection circuit；10, peristaltic pump； 11, chlorine residue reagent holding bay.

Specific embodiment

The medical reverse osmosis water water quality on-line measuring device of hemo system six separate units in structure: solenoid valve (1), conductance/ PH value detects cabin (2), turbidity/chlorine residue detects cabin (3), peristaltic pump (10), chlorine residue reagent holding bay (11), control unit (7) group At；It is made of on circuit eight parts: solenoid valve (1), Conductivity detection circuit (4), pH value detection circuit (5), LED laser source (6), Turbidity measurement circuit (8), chlorine residue detection circuit (9), peristaltic pump (10), control unit (7)；In structure, turbidity/chlorine residue inspection It surveys cabin (3) and passes through pipeline and conductance/pH value detection cabin (2), peristaltic pump (10) connection；Conductance/pH value detection cabin (2) also passes through pipe Road and solenoid valve (1) connection, peristaltic pump (10) are also connected by pipeline and chlorine residue reagent holding bay (11)；Control unit (7) and Said units are realized by conducting wire and are electrically connected.On circuit, solenoid valve (1), LED laser source (6), peristaltic pump (10) and control The output interface of unit (7) is connected by conducting wire；Conductivity detection circuit (4), pH value detection circuit (5), Turbidity measurement circuit (8), chlorine residue detection circuit (9) is connected with the input interface of control unit (7) by conducting wire.

In Fig. 2: 2, conductance/pH value detects cabin；4, Conductivity detection circuit；5, pH value detection circuit；12, water inlet；13, go out The mouth of a river.

Conductance/pH value detection cabin (2) is fixed on Conductivity detection circuit (4), pH value detection circuit (5), and has Water inlet (12) and water outlet (13), wherein Conductivity detection circuit (4) includes Conductivity detection probe and conditioning circuit, Conductivity detection The conductivity popped one's head in for detecting prepare liquid, conditioning circuit are used to the analog signal of sensor being converted into electric signal, export to Control unit (7) is handled；Likewise, pH value detection circuit (5) includes pH value detection probe and conditioning circuit, pH value inspection Probing head is used to detect the pH value of prepare liquid, and conditioning circuit is used to the analog signal that sensing probe exports being converted into electric signal, It exports and is handled to control unit (7).Water inlet (12) is connected with the output end of solenoid valve (1), is used for conductance/pH value It detects cabin (2) and injects testing liquid, water outlet (13) with turbidity/chlorine residue detection cabin (3) then for being connected to.

In Fig. 3: 3, turbidity/chlorine residue detects cabin；6, LED laser source；8, Turbidity measurement circuit；9, chlorine residue detection circuit；10, Peristaltic pump；11, chlorine residue reagent holding bay；14, discharge outlet；15, water inlet；16, reagent inlet.

Be equipped with LED laser source (6) on one face side wall of turbidity/chlorine residue detection cabin (3), the face of laser source face it is same Chlorine residue detection circuit (9) are installed, the central position on the sustained height position on face adjacent thereto on horizontal vertical position Set and be equipped with Turbidity measurement circuit (8), thus LED laser source (6), Turbidity measurement circuit (8), in chlorine residue detection circuit (9) The heart is in the same height, the illuminance sensor for having a color deeper in the detection probe of Turbidity measurement circuit (8), according to The scattering principle of light, measurement are scattered to the intensity of illumination of side by particle in water, had in chlorine residue detection circuit (9) detection probe The deeper illuminance sensor of one color, contents of residual chlorine in water is detected according to the intensity to incoming light.Water inlet (14) it is connected with conductance/pH value detection cabin (2), discharge outlet (14) is for being discharged waste liquid, reagent inlet (16) and peristaltic pump (10) It is connected, peristaltic pump (10) is controlled the control of unit (7), by rotating the chlorine residue reagent holding bay that can will be attached thereto (11) the chlorine residue reagent in is injected into turbidity/chlorine residue detection cabin (3), participates in chemical reaction.

Claims (1)

1. a kind of medical reverse osmosis water water quality on-line measuring device of hemo system, which is characterized in that by six separate units in structure: electricity Magnet valve (1), conductance/pH value detection cabin (2), turbidity/chlorine residue detection cabin (3), peristaltic pump (10), chlorine residue reagent holding bay (11), Control unit (7) composition, it is solenoid valve (1), conductance/pH value detection cabin (2), turbidity/chlorine residue detection cabin (3), peristaltic pump (10), remaining Chlorine reagent holding bay (11) is connected by pipeline, and control unit (7) and above structure have electrical connection；By eight on circuit It is grouped as: solenoid valve (1), Conductivity detection circuit (4), pH value detection circuit (5), LED laser source (6), Turbidity measurement circuit (8), chlorine residue detection circuit (9), peristaltic pump (10), control unit (7)；Solenoid valve (1), LED laser source (6), peristaltic pump (10) It is connected with the output interface of control unit (7) by conducting wire；Conductivity detection circuit (4), pH value detection circuit (5), Turbidity measurement Circuit (8), chlorine residue detection circuit (9) are connected with the input interface of control unit (7) by conducting wire.