CN105499231A - Biochemical instrument liquid path system and method - Google Patents
Biochemical instrument liquid path system and method Download PDFInfo
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- CN105499231A CN105499231A CN201610100292.5A CN201610100292A CN105499231A CN 105499231 A CN105499231 A CN 105499231A CN 201610100292 A CN201610100292 A CN 201610100292A CN 105499231 A CN105499231 A CN 105499231A
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- waste liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0856—Cleaning of water-treatment installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
Abstract
The invention discloses a biochemical instrument liquid path system and method and relates to the technical field of human blood detectors. The biochemical instrument liquid path comprises a cleaning bucket (301) filled with deionized water and an internally-arranged water tank (302). The biochemical instrument liquid path is characterized in that a pump and an electromagnetic valve are connected with the internally-arranged water tank (302) and a needle inner wall cleaning system and connected with the internally-arranged water tank (302) and a needle outer wall cleaning and colorimetric cuvette cleaning system, a vacuum pump (207) is connected with a thin waste liquid tank (7) and a thick waste liquid tank (8) through a vacuum tank (15) and an electromagnetic valve respectively and then connected with a waste liquid pumping and draining system, the waste liquid pumping and draining system pumps and drains waste liquid to a waste liquid bucket through an automatic cleaning component vacuum needle by the pump and the electromagnetic valve, and waste liquid collected by a waste liquid collection device (17) is discharged into the waste liquid bucket. By using the biochemical instrument liquid path system, accurate sampling can be realized, result reliability and stability can be guaranteed, the biochemical instrument liquid path system can be cleaned quickly, testing speed can be increased, and more samples can be treated within same time.
Description
Technical field
The present invention relates to blood of human body detecting instrument technical field, particularly a kind of biochemical instruments liquid-way system and method.
Background technology
Biochemical instruments be the sampling in biochemical analysis, reagent adding, mixing, insulation, colorimetric, result are calculated, the part or all of instrument operated by imitate manual of writing the steps such as report come.In mensuration process, sampling, colorimetric is all adopt the mode recycled.Sampling is by stainless steel tube, and syringe, valve associating substep controls to draw sample, reagent, is finally discharged in cuvette by sample reagent.React in cuvette, measure, obtain test data, obtain result eventually through computer process.Because test event is numerous, sampling, getting reagent is all adopt same stainless steel tube, so need all need cleaning to stainless steel tube inside and outside wall, and meets cleaning requirement.Cuvette also recycles, and also needs cleaning and will meet cleaning requirement.Certain problem is there is in the technical equipment of current employing in stability and accuracy, as the patent No.: CN200610157238.0 automatic flushing device and method, what adopt is that cleaning fluid the 1st and the 2nd rank respectively adopt a valve to control, and residue 3-6 rank adopt a valve to control.Waste liquid aspect, the 1st and the 2nd rank are retracted to separately high-concentration waste liquid vacuum tank, and residue 2-6 rank are extracted into low concentration waste liquid vacuum tank.Self-cleaning polishes head 7,8 rank control separately through cleaning valve, wiped clean.3-6 rank are automatically cleaned and are adopted separately a control valve to control, because the pipeline pipe resistance of every single order is different, but the pressure that every single order is imported and exported is identical, so 3-6 rank single order or multistage cleaning head can be caused in the process of equalizing pressure to drip, stability and the accuracy of test result seriously can be had influence on.
Summary of the invention
The object of this invention is to provide the clean biochemical instruments liquid-way system of a kind of simple and practical, accurate sampling, Rapid Cleaning and cleaning method.
The object of the invention is to be realized by following approach:
Biochemical instruments liquid-way system, comprise cleaning bucket 301 and inner water-tank 302 that deionized water is housed, it is characterized in that being connected inner water-tank 302 and pin inner wall washing system by pump with magnetic valve, inner water-tank 302 and pin outer wall washing and cuvette purging system is connected with magnetic valve by pump, be connected rare waste liquid tank 7 by vavuum pump 207 respectively through vacuum tank 15 and magnetic valve and be connected waste liquid evacuation system after dense waste liquid tank 8, described waste liquid evacuation system extracts discharging of waste liquid to waste liquid barrel by pump and magnetic valve respectively through automatic cleaning assembly vacuum pin, and the discharging of waste liquid to be collected by waste liquid aggregating apparatus 17 is to waste liquid barrel.
Further be back to reactive tank 20 anabolic reaction dish bath of liquid system by the Incubating Solution in bath of liquid pump 206 abstraction reaction groove 20 through heat exchanger 12 and heater 11.
Further that described inner water-tank 302 is built with float sensor.
The freezing liquid further extracted in reagent disc 10 by water supply pump 205 is back to reagent disc 10 through heat exchanger 12 and refrigerating plant 13 and forms reagent disc refrigeration system.
Be further that described pin inner wall washing system connects sampling needle 2 by sampling needle syringe 5, reagent needles syringe 6 connects reagent needles 1 and forms.
Further that described pin pin outer wall washing and cuvette purging system form pin outer wall washing system by cleaning puddler 3, sampling needle 2 and reagent needles 1 in service sink 19, control by self-cleaning valve assembly 1104 the 1-3 rank that the 4-6 rank deionized water of automatic cleaning assembly cleaning needle and self-cleaning valve assembly 2105 control automatic cleaning assembly cleaning needle and dilute cleaning fluid, in reactive tank 20, clean cuvette composition cuvette purging system.
Biochemical instruments liquid-way system cleaning method, adopts following steps:
A. the deionized water of cleaning bucket 301 is extracted to inner water-tank 302, with inner water-tank 302 built with float sensor controlling water level with pump and magnetic valve;
B. two-way is used respectively by pump and solenoid control rinse water to pin inner wall washing system and pin outer wall washing system and cuvette purging system, the deionized water mixing cleaning cuvette that the concentrated cleaning solutions concentrating washing bucket 306 enters self-cleaning valve assembly 2105 is extracted with pump, in service sink 19, clean the inside and outside wall of puddler 3, sampling needle 2 and reagent needles 1, in reactive tank 20, clean cuvette;
C. discharging of waste liquid, the negative pressure produced with vavuum pump 207, through magnetic valve divide two-way cleaning needle to extract rare waste liquid that cleaning cuvette produces and dense discharging of waste liquid to waste liquid barrel, collects discharging of waste liquid in service sink 19 to waste liquid barrel with waste liquid aggregating apparatus 17.
Good effect of the present invention: biochemical instruments liquid-way system of the present invention and cleaning method, due to without sealing radiator, can not cause the hydropenic situation of water tank.Complete machine supplies water reliable and stable, too increases safeguard measure, reduces the waste situation of client's reagent aspect.The present invention has accurate sampling, ensures the reliable and stable of result, and Rapid Cleaning is clean, improves test speed, can process more sample within the identical time.
Accompanying drawing explanation
Fig. 1 is present system structure principle chart
Fig. 2 is rinse water water inlet system schematic diagram of the present invention
Fig. 3 is pin inner wall washing systematic schematic diagram of the present invention
Fig. 4 is pin outer wall washing of the present invention and cuvette purging system schematic diagram
Fig. 5 is vacuum system schematic diagram of the present invention
Fig. 6 is liquid waste system schematic diagram of the present invention
Fig. 7 is reaction tray bath of liquid systematic schematic diagram of the present invention
Fig. 8 is light source water-cooling system of the present invention and concentrated cleaning solutions systematic schematic diagram
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is elaborated:
As shown in Figure 1, biochemical instruments liquid-way system of the present invention comprises cleaning bucket 301 and inner water-tank 302 that deionized water is housed, it is characterized in that being connected inner water-tank 302 and pin inner wall washing system by pump with magnetic valve, inner water-tank 302 and pin outer wall washing and cuvette purging system is connected with magnetic valve by pump, be connected rare waste liquid tank 7 by vavuum pump 207 respectively through vacuum tank 15 and magnetic valve and be connected waste liquid evacuation system after dense waste liquid tank 8, described waste liquid evacuation system extracts discharging of waste liquid to waste liquid barrel by pump and magnetic valve respectively through automatic cleaning assembly vacuum pin, and the discharging of waste liquid to be collected by waste liquid aggregating apparatus 17 is to waste liquid barrel.Reactive tank 20 anabolic reaction dish bath of liquid system is back to through heat exchanger 12 and heater 11 by the Incubating Solution in bath of liquid pump 206 abstraction reaction groove 20.Inner water-tank 302 is built with float sensor.The freezing liquid extracted in reagent disc 10 by water supply pump 205 is back to reagent disc 10 through heat exchanger 12 and refrigerating plant 13 and forms reagent disc refrigeration system.Pin inner wall washing system connects sampling needle 2 by sampling needle syringe 5, and reagent needles syringe 6 connects reagent needles 1 and forms.Pin pin outer wall washing and cuvette purging system form pin outer wall washing system by cleaning puddler 3, sampling needle 2 and reagent needles 1 in service sink 19, control by self-cleaning valve assembly 1104 the 1-3 rank that the 4-6 rank deionized water of automatic cleaning assembly cleaning needle and self-cleaning valve assembly 2105 control automatic cleaning assembly cleaning needle and dilute cleaning fluid, in reactive tank 20, clean cuvette composition cuvette purging system.
Biochemical instruments liquid-way system cleaning method, adopts following steps:
A. the deionized water of cleaning bucket 301 is extracted to inner water-tank 302, with inner water-tank 302 built with float sensor controlling water level with pump and magnetic valve;
B. two-way is used respectively by pump and solenoid control rinse water to pin inner wall washing system and pin outer wall washing system and cuvette purging system, the deionized water mixing cleaning cuvette that the concentrated cleaning solutions concentrating washing bucket 306 enters self-cleaning valve assembly 2105 is extracted with pump, in service sink 19, clean the inside and outside wall of puddler 3, sampling needle 2 and reagent needles 1, in reactive tank 20, clean cuvette;
C. discharging of waste liquid, the negative pressure produced with vavuum pump 207, through magnetic valve divide two-way cleaning needle to extract rare waste liquid that cleaning cuvette produces and dense discharging of waste liquid to waste liquid barrel, collects discharging of waste liquid in service sink 19 to waste liquid barrel with waste liquid aggregating apparatus 17.
Rinse water water inlet system, as shown in Figure 2, the built-in float sensor of cleaning bucket 301, detects low level condition alarm, points out user the deionized water in cleaning bucket 301 manually need to be filled in host computer.Inner water-tank 302 has 3 float sensors, judges the general height of its internal water liquid level.The different conditions of 3 float sensors decides water intaking valve 101 and whether intake pump 201 works.When the float sensor of centre does not float, water intaking valve 101 and intake pump 201 are energized work, inner water-tank 302 is filled upper float sensor and floats, quit work.Instantly when float sensor does not float, need stop new test event, the test event of having carried out can be continued test, the situation of the reagent that cuts the waste occurs.Meanwhile, when cleaning bucket 301 alarm, inner water-tank 302 intermediate sensor is not floated yet, and now ensures that the remaining deionized water of cleaning bucket 301 can meet equally and inner water-tank 302 is filled upper float sensor.Due to without sealing radiator, the hydropenic situation of water tank can not be caused.Complete machine supplies water reliable and stable, too increases safeguard measure, reduces the waste situation of client's reagent aspect.
Pin inner wall washing system, as shown in Figure 3, inner wall washing pump 202 extracts the deionized water in inner water-tank 302, and its pressure is comparatively large, according to its pressure of cleaning water yield adjustment.Outlet pressure is comparatively large, so outlet can not use flexible pipe, needs the hard tube using hardness higher, ensures depressing do not come off distortion or breaking-up more greatly.Inner wall washing pump 202 exports and connects inner wall washing valve module 102, it is made up of 3 magnetic valves and a Pressure gauge, Pressure gauge mainly shows the outlet pressure of inner wall washing pump 202, inner wall washing pump 202 is divided into 3 tunnels by magnetic valve, tackles a sampling needle syringe 5 and two reagent needles syringes 6 respectively.Sampling needle syringe 5 connects sampling needle 2, and reagent needles syringe 6 connects reagent needles 1.By this kind of connected mode, clean sampling needle 2 and reagent needles 1 by single inner wall washing pump 202 simultaneously.The effect of inner wall washing valve module 102 is when sampling needle 2 and reagent needles 1 draw sample and reagent time, close the interface channel of sampling needle syringe 5 and reagent needles syringe 6 and inner wall washing pump 202, the sample that guarantee is drawn when sampling needle syringe 5 and 6 action of reagent needles syringe time and reagent are all originated and sample cup and reagent bottle, are all discharged by sampling needle 2 and reagent needles 1 when discharging sample and reagent.Sample size is below 50 microlitres, amount of reagent is below 500 microlitres, discharge sample to ensure to draw and draw the degree of accuracy of discharging reagent, connecting sampling needle syringe 5 all adopts hard tube to be connected with the pipeline of two reagent needles syringes 6, improves pipeline expansion and causes discharging sample and drawing the accuracy and precision of discharging reagent.Due to the impact of water surface tension, sampling needle 2 and reagent needles 1 and reagent needles outlet less, in general, sampling needle 2 outlet diameter is less than 0.5mm, and reagent needles 1 outlet diameter is less than 1mm.Outlet size is less, and each absorption is more consistent with the sample reagent amount of discharging, and repeatability is higher, is conducive to the result of testing.
Pin outer wall washing and cuvette purging system, as shown in Figure 4, outer wall washing pump 203 extracts the deionized water in inner water-tank 302, is discharged to outer wall valve cleaning assembly 103.Outer wall valve cleaning assembly 103 is made up of 4 magnetic valves and several joint, wherein has the outer wall washing of 3 solenoid control sampling needle 2 and two reagent needles 1, and 1 solenoid control, two puddlers 3 clean.A sampling needle 2 and two reagent needles 1 are single movements, so the time of each cleaning and position are not quite similar, so need use time and the length of its cleaning of different solenoid control.A joint is connected with outer wall washing pump 203 outlet, and a joint is connected to inner water-tank 302, unnecessary deionized water is refluxed.A joint connects cuvette self-cleaning valve assembly 1104 and self-cleaning valve assembly 2105.Self-cleaning valve assembly 1104 controls the 4-6 rank deionized water of automatic cleaning assembly cleaning needle, and self-cleaning valve assembly 2105 controls the 1-3 rank dilution cleaning fluid of automatic cleaning assembly cleaning needle.When respond in cuvette liquid and cleaning fluid time, vacuum system is siphoned away discharge, and then self-cleaning valve assembly 1104 and self-cleaning valve assembly 2105 energising are opened, and inject dilution cleaning fluid and deionized water, so circulate, cleaned up by cuvette.
Vacuum system, as shown in Figure 5, vavuum pump 207 air entry connects vacuum tank 15 top, and outlet connects silencer 14.Vacuum tank 15 top and bottom are connected vacuum-operated inlet valve 108 and vacuum waist valve 107 respectively, and when after system closedown, vacuum-operated inlet valve 108 and vacuum waist valve 107 are opened, and the hydrops of vacuum tank 15 inside can be discharged.The benefit that top is connected with vavuum pump greatly reduces vavuum pump 207 to intake the possibility of vapour, protection vavuum pump 207.Under vacuum tank side, orientation connects vacuum valve 104, ensures to hold from vacuum valve 104COM to connect rare waste liquid tank 7 and dense waste liquid tank 8 at every turn.The position that above-mentioned each parts connect enters too much water vapour and condensate water in order to the ponding reduced in vacuum tank 15 with reducing in vavuum pump 207.Rare waste liquid tank 7 is all connected waist valve with bottom dense waste liquid tank 8, a rare waist valve 105 and a dense waist valve 106.Rare waste liquid tank 7 is respectively connected the block 9 that confluxes with dense waste liquid tank 8 top.The block that confluxes be connected with rare waste liquid tank 7 extracts the rinse water on automatic cleaning assembly vacuum pin 4-7 rank; The block that confluxes be connected with dense waste liquid tank 8 extract automatic cleaning assembly vacuum pin 1-3,8 rank reaction solution and be with acid and alkali cleansing solution rinse water.When needing to extract the water in cuvette, the vacuum tank 207 with negative pressure is connected by vacuum valve 104 with rare waste liquid tank 7 and dense waste liquid tank 8, makes rare waste liquid tank 7 and dense waste liquid tank 8 inside set up negative pressure.Rare waist valve 105 and dense waist valve 106 are the states of closing, so can only by block 9 and the automatic cleaning assembly vacuum pin of confluxing when rare waste liquid tank 7 and dense waste liquid tank 8 get back to atmospheric pressure, rinse water in cuvette and reactant liquor can enter into rare waste liquid tank 7 and dense waste liquid tank 8 respectively, repetitive cycling, cleans up cuvette.
Liquid waste system, as shown in Figure 6, liquid waste system is divided into two parts.Part waste liquid is dense waste liquid, extracts automatic cleaning assembly vacuum pin 1-3, the reaction solution on 8 rank and the rinse water of band acid and alkali cleansing solution from dense waste liquid tank 8.The connection control with dense waist valve 106 is connected with air by vacuum valve 104, by the mode of dense waste drains pump 210, dense waste liquid is discharged in dense waste liquid barrel 305 again, so dense waste liquid tank 8 is higher than dense waist valve 106, dense waist valve 106 is higher than the entrance of dense waste liquid barrel 305, so just can ensure that the smoothness of removal waste fluid does not block.Part waste liquid is rare waste liquid, and rare waste liquid is also divided into several source, and one is the rinse water extracting automatic cleaning assembly vacuum pin 4-7 rank from rare waste liquid tank 7.By the connection control of vacuum valve 104 and rare waist valve 105, then by the mode of rare waste drains pump 209, rare waste liquid is discharged to waste liquid aggregating apparatus 17.Two are puddlers 3, sampling needle 2 and reagent needles 1 clean the waste liquid of inside and outside wall in service sink 19, conflux in cleaning waste liquid aggregating apparatus 16, the waste liquid confluxed flows to waste liquid aggregating apparatus 17 again.Three is that reagent disc 10 condensed water is discharged in waste liquid aggregating apparatus 17.Four is that vacuum tank inside has part hydrops, by vacuum-operated inlet valve 108 and vacuum waist valve 107, the hydrops of inside is discharged to waste liquid aggregating apparatus 17.What the rare waste liquid finally confluxed was concentrated is discharged in rare waste liquid barrel 304 by waste liquid aggregating apparatus 17.The rare waste liquid of part is also rely on the mode of gravity to discharge, so need consider the priority position of each parts during design, when ensureing that waste liquid is discharged, smoothness does not block.
Reaction tray bath of liquid system, as shown in Figure 7, adopt the mode of bath of liquid, the reacting liquid temperature mainly in reaction cup heats up rapidly, and the factor being subject to environmental disturbances is less.Be different from solid directly-heated and air bath, the control mode of bath of liquid is simple, and difficulty of processing is also well below solid directly-heated mode, but slightly more complicated than air bath, and comprehensively these three kinds of schemes, the scheme of bath of liquid is best, is also the most stable.Incubating Solution in bath of liquid pump 206 abstraction reaction groove 20, outlet connects heat exchanger 12, carries out heat exchange with the freezing liquid in reagent disc refrigeration system, after the Incubating Solution of heat exchange reduction temperature is heated to 37 DEG C in heater 11, is again back to reactive tank 20.Reduce temperature through heat exchange, be conducive to controlling the temperature of Incubating Solution under varying environment temperature conditions.Such as when environment temperature exceedes determined temperature, if there is not heat exchanger cooling heat exchange, when environment temperature is too high, Incubating Solution temperature declines not high enough, causes temperature to reduce and can raise on the contrary, finally exceed predetermined temperature.Reduce the mode of temperature by heat exchanger, can meet the demands in comparatively overall situation range of temperature, the scope of application of biochemical instruments is provided.
Reagent disc refrigeration system, as shown in Figure 1, water supply pump 205 extracts the freezing liquid in reagent disc 10, freezing liquid is input in heat exchanger, heat exchange is carried out in heat exchanger 12 with the Incubating Solution of reaction tray bath of liquid system, after exchanging, the freezing liquid of heating enters in refrigerating plant 13 and lowers the temperature, and the freezing liquid after cooling is back to reagent disc 10.Wherein comprise cooling piece in refrigerating plant 13, cooling piece cold junction and freezing liquid switch, cooling piece hot-side heat dissipation sheet and fan.Cooling piece refrigeration modes structure is simple, and fast, properties of product are reliable and stable, although refrigerating capacity is less than normal, enough meet the use in biochemical instruments for refrigeration.By water-cooling pattern cooling reagent disc 10, make homogeneous temperature in reagent disc, the specific heat capacity of adding cooling fluid is very large, has the interference performance of very strong environment resistant change.Final temperature can reach and temperature stabilization maintains 2-8 DEG C.
Light source water-cooling system and concentrated cleaning solutions system, as shown in Figure 8, light source water-cooled pump 208 extracts the deionized water in inner water-tank 302, and the port of export connects light source 6, and the deionized water heated through light source 6 is back to inner water-tank 302 again.Because light-source system is open type, so need to be separated with other system, and it is higher to the stability requirement of temperature, if variations in temperature is excessive, can have influence on the accuracy of test result greatly.Concentrated cleaning solutions pump 204 extracts the concentrated cleaning solutions of concentrated washing bucket 306, the deionized water that concentrated cleaning solutions and outer wall washing pump 203 enter self-cleaning valve assembly 2105 is mixed, and the 1-3 finally entered in automatic flushing device saves cleaning needle, cleaning cuvette.
Claims (7)
1. a biochemical instruments liquid-way system, comprise cleaning bucket (301) and inner water-tank (302) that deionized water is housed, it is characterized in that being connected inner water-tank (302) and pin inner wall washing system by pump with magnetic valve, inner water-tank (302) and pin outer wall washing and cuvette purging system is connected with magnetic valve by pump, be connected rare waste liquid tank (7) by vavuum pump (207) respectively through vacuum tank (15) and magnetic valve and be connected waste liquid evacuation system after dense waste liquid tank (8), described waste liquid evacuation system extracts discharging of waste liquid to waste liquid barrel by pump and magnetic valve respectively through automatic cleaning assembly vacuum pin, and the discharging of waste liquid to be collected by waste liquid aggregating apparatus (17) is to waste liquid barrel.
2. biochemical instruments liquid-way system according to claim 1, is characterized in that being back to reactive tank (20) anabolic reaction dish bath of liquid system by the Incubating Solution in bath of liquid pump (206) abstraction reaction groove (20) through heat exchanger (12) and heater (11).
3. biochemical instruments liquid-way system according to claim 1, is characterized in that described inner water-tank (302) is built with float sensor.
4. biochemical instruments liquid-way system according to claim 1, is characterized in that being back to reagent disc (10) by water supply pump (205) freezing liquid extracted in reagent disc (10) through heat exchanger (12) and refrigerating plant (13) forms reagent disc refrigeration system.
5. biochemical instruments liquid-way system according to claim 1, it is characterized in that described pin inner wall washing system connects sampling needle (2) by sampling needle syringe (5), reagent needles syringe (6) connects reagent needles (1) composition.
6. biochemical instruments liquid-way system according to claim 1, it is characterized in that described pin pin outer wall washing and cuvette purging system form pin outer wall washing system by cleaning puddler (3), sampling needle (2) and reagent needles (1) in service sink (19), control by self-cleaning valve assembly 1 (104) the 1-3 rank that the 4-6 rank deionized water of automatic cleaning assembly cleaning needle and self-cleaning valve assembly 2 (105) control automatic cleaning assembly cleaning needle and dilute cleaning fluid, cleaning cuvette composition cuvette purging system in reactive tank (20).
7. a biochemical instruments liquid-way system cleaning method, is characterized in that adopting following steps:
A. the deionized water of cleaning bucket (301) is extracted to inner water-tank (302), with inner water-tank (302) built with float sensor controlling water level with pump and magnetic valve;
B. two-way is used respectively by pump and solenoid control rinse water to pin inner wall washing system and pin outer wall washing system and cuvette purging system, the deionized water mixing cleaning cuvette that the concentrated cleaning solutions concentrating washing bucket (306) enters self-cleaning valve assembly 2 (105) is extracted with pump, the inside and outside wall of puddler (3), sampling needle (2) and reagent needles (1) is cleaned, cleaning cuvette in reactive tank (20) in service sink (19); C. discharging of waste liquid, by the negative pressure that vavuum pump (207) produces, divide two-way cleaning needle extraction cleaning rare waste liquid that cuvette produces and dense discharging of waste liquid to waste liquid barrel, with the discharging of waste liquid in waste liquid aggregating apparatus (17) collection service sink (19) to waste liquid barrel through magnetic valve.
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