CN114113004A - Waste liquid treatment method and device and sample analyzer - Google Patents
Waste liquid treatment method and device and sample analyzer Download PDFInfo
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- CN114113004A CN114113004A CN202010889475.6A CN202010889475A CN114113004A CN 114113004 A CN114113004 A CN 114113004A CN 202010889475 A CN202010889475 A CN 202010889475A CN 114113004 A CN114113004 A CN 114113004A
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- 239000007788 liquid Substances 0.000 title claims abstract description 520
- 239000002699 waste material Substances 0.000 title claims abstract description 456
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000004891 communication Methods 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 2
- 239000010808 liquid waste Substances 0.000 claims 10
- 238000007599 discharging Methods 0.000 claims 3
- 239000000523 sample Substances 0.000 description 43
- 238000010586 diagram Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012472 biological sample Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003018 immunoassay Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 210000002700 urine Anatomy 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- G—PHYSICS
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- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/01—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials specially adapted for biological cells, e.g. blood cells
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Abstract
The application discloses waste liquid treatment method and device and sample analyzer, wherein the waste liquid treatment method comprises the following steps: the waste liquid treatment device is used for carrying out first collection on waste liquid in at least one container under negative pressure, so that the residual waste liquid in each container is a part of original waste liquid; after the first collection area is finished, the collection of the residual waste liquid in at least one container is suspended, so that the residual waste liquid on the inner wall of each container flows back to the position below the liquid level of the waste liquid; and after the collection is suspended, carrying out second collection on the residual waste liquid in the at least one container after the first collection under negative pressure. Through the mode, the technical support can be provided for reducing the subsequent collection time of the residual waste liquid.
Description
Technical Field
The application relates to the technical field of wastewater treatment, in particular to a waste liquid treatment method and device and a sample analyzer.
Background
A sample analyzer is an apparatus for analyzing data of a biological sample such as blood or urine in medical care.
When a sample to be detected is analyzed by a sample analyzer, some waste liquid is usually generated, and the generated waste liquid needs to be processed in time so as to facilitate the subsequent analysis.
Disclosure of Invention
The technical problem that the application mainly solves is to provide a waste liquid treatment method and device and a sample analyzer, and the technical support can be provided for reducing the follow-up collection time of residual waste liquid.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a waste liquid treatment method applied to a sample analyzer including at least one container containing a corresponding waste liquid, the waste liquid treatment method including: the waste liquid treatment device is used for carrying out first collection on the waste liquid in the at least one container under negative pressure, so that the residual waste liquid in each container is a part of the original waste liquid; after the first collection area is finished, stopping collecting the residual waste liquid in the at least one container, so that the residual waste liquid on the inner wall of each container flows back to the position below the liquid level of the waste liquid; after the suspension of the collection, a second collection of the remaining waste liquid in the at least one container after the first collection is performed under negative pressure.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a waste liquid treatment apparatus for use in a sample analyzer including at least one container containing a respective waste liquid, the waste liquid treatment apparatus comprising: the waste liquid pool is connected with the at least one container and is used for collecting waste liquid in the at least one container; the pressure supply mechanism is connected with the waste liquid pool and provides negative pressure for the waste liquid pool, so that the waste liquid pool collects waste liquid in the at least one container under the negative pressure; wherein the waste liquid treatment device performs a first collection of waste liquid in the at least one container under negative pressure such that the remaining waste liquid in each container is a portion of the original waste liquid; after the first collection area is finished, stopping collecting the residual waste liquid in the at least one container, so that the residual waste liquid on the inner wall of each container flows back to the position below the liquid level of the waste liquid; after the suspension of the collection, a second collection of the remaining waste liquid in the at least one container after the first collection is performed under negative pressure.
In order to solve the above technical problem, the present application adopts another technical solution: there is provided a sample analyser comprising at least one container containing a respective waste liquid, and a waste liquid treatment device as described above.
The beneficial effect of this application is: in the waste liquid treatment method, when the waste liquid in the container is collected, the waste liquid is not all extracted into the waste liquid treatment device at one time, but the first collection is firstly carried out to collect a part of the original waste liquid in the container, and then the collection is suspended, so that the residual waste liquid on the inner wall of the container flows back to the position below the liquid level of the waste liquid in the container; and then further performing a second collection of the remaining waste liquid in the container. In the above mode, after the waste liquid in the container is subjected to the first collection, the collection is suspended firstly to remove a part of residual waste liquid hung on the inner wall of the container, and then the second collection is carried out, so that the technical support can be provided for reducing the subsequent collection time of the residual waste liquid.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural view of an embodiment of a sample analyzer according to the present application;
FIG. 2 is a schematic view of the structure of an embodiment of the waste liquid treatment apparatus according to the present application;
FIG. 3 is a schematic flow diagram of one embodiment of a waste liquid treatment process of the present application;
FIG. 4 is a schematic flow diagram of another embodiment of a waste liquid treatment process according to the present application;
FIG. 5 is a view of an application of the embodiment of the waste liquid treatment method of the present application;
FIG. 6 is a diagram of another application scenario in an embodiment of the waste liquid treatment method of the present application;
FIG. 7 is a diagram of another application scenario in an embodiment of the waste liquid treatment method of the present application;
FIG. 8 is a diagram of another application scenario in an embodiment of the waste liquid treatment method of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a sample analyzer according to the present application. In the present embodiment, the sample analyzer 10 may be a fluorescence immunoassay analyzer, a blood cell detection apparatus, or the like, and is not limited thereto.
In this embodiment, the sample analyzer 10 may include one or more containers 11 that generate and contain waste fluids during sample analysis. Specifically, the container 11 may include various tanks for processing the sample, such as a reaction tank, a counting tank, or a washing tank for washing the needle, and the like, and may further include a pipe for communicating these tanks with a device for performing waste liquid processing.
The type of the waste liquid in each container 11 may be the same or different, and the size of the tank and the pipe corresponding to each container 11 may be the same or different, which is not limited herein.
It should be noted that the sample analyzer 10 of the present embodiment may include a waste liquid treatment device for treating waste liquid generated during the sample analysis, or may not include an external waste liquid treatment device for treating waste liquid.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a waste liquid treatment apparatus according to the present application. In the present embodiment, the waste liquid treatment apparatus 20 can be applied to the sample analyzer 10 described in the above-mentioned embodiment of the sample analyzer 10 of the present application to treat waste liquid generated during the operation of the sample analyzer 10.
The waste liquid treatment apparatus 20 may include a waste liquid tank 21 and a pressure supply mechanism 22 connected to the waste liquid tank 21, wherein the waste liquid tank 21 may define a liquid inlet 23 and a liquid outlet 24.
Specifically, the number of the liquid inlets 23 may be one or more, and may specifically correspond to the number of the containers 11 in the sample analyzer 10, and each liquid inlet 23 is connected to a corresponding container 11 to collect the waste liquid in each container 11; the number of the liquid outlets 24 may be one, and the liquid outlets 24 may be connected to an external waste liquid receiver to discharge the collected waste liquid, and of course, in some application scenarios, the number of the liquid outlets 24 may be set to be plural according to actual needs.
In the related art, when the sample analyzer 10 is subjected to waste liquid treatment, the container 11 of the sample analyzer 10, which needs to be subjected to waste liquid treatment, is communicated with the corresponding liquid inlet 23 of the waste liquid tank 21, and after the pressure supply mechanism 22 supplies negative pressure to the waste liquid tank 21, the waste liquid tank 21 sucks waste liquid in the container 11 into the waste liquid tank through the liquid inlet 23 under the negative pressure.
After the waste liquid in the container 11 is sucked into the waste liquid tank 21, a certain amount of waste liquid may remain on the inner wall of the container 11. In order to dispose of the residual waste liquid clean, the container 11 is often further pumped by the waste liquid tank 21. However, after the waste liquid in the container 11 is sucked into the waste liquid tank 21, the waste liquid tank 21 is communicated with the atmosphere through the container 11, so that a large amount of air is sucked, the negative pressure is rapidly reduced, and the phenomenon of unstable negative pressure is caused, which is not favorable for the stable operation of waste liquid treatment.
Referring to fig. 3, fig. 3 is a schematic flow chart of an embodiment of the waste liquid treatment method of the present application. In the present embodiment, the waste liquid treatment apparatus 20 described in the above-described embodiment of the waste liquid treatment apparatus 20 of the present application is used to treat the waste liquid in the container 11 in the sample analyzer 10 described in the above-described embodiment of the sample analyzer 10 of the present application, and specifically, the waste liquid treatment method may include:
step S11: the waste liquid treatment device 20 performs a first collection of waste liquid in at least one container 11 under negative pressure, so that the remaining waste liquid in each container 11 is a part of the original waste liquid;
specifically, before the first collection of the waste liquid in the container 11, the pressure supply mechanism 22 may be used to evacuate the waste liquid pool 21, so as to form a negative pressure environment in the waste liquid pool 21. Further, the end of the waste liquid in the container 11 far away from the waste liquid tank 21 can be communicated with the atmosphere, so that under the coordination of the negative pressure and the atmosphere, the gravity of the waste liquid and the like, the waste liquid in the container 11 enters the waste liquid tank 21 through the corresponding liquid inlet 23, and the first collection of the waste liquid is realized. Wherein, in the process of first collecting the waste liquid in the container 11 by the waste liquid pool 21, the pressure supply mechanism 22 can continuously provide negative pressure for the waste liquid pool 21, or in the first collecting process, the pressure supply mechanism 22 can not provide negative pressure for the waste liquid pool 21 any more, and only collects the waste liquid under the negative pressure provided by the pressure supply mechanism 22 before first collecting.
In the first collection of the waste liquid in the container 11, only a part of the original waste liquid contained in the container 11 is extracted into the waste liquid tank 21, and the remaining waste liquid is obtained.
In an application scenario, after the first collection stage, a ratio between an amount of remaining waste liquid in at least one container 11 of the containers 11 for performing waste liquid treatment and an amount of original waste liquid before the first collection stage is 1/6 to 2/3, which may be 1/6, 1/3, 2/3, and the like, and is not limited herein.
For example, when the number of the containers 11 for performing the waste liquid treatment is one, the ratio corresponding to the one container 11 may be 1/3; when the number of the containers 11 for performing the waste liquid treatment is plural, at least one of the containers 11 corresponds to 1/3, and the other containers 11 each correspond to a ratio not greater than 1/3.
When the waste liquid in each container 11 is collected for the first time, the corresponding first collection time lengths may be equal or unequal, and may be specifically set according to actual conditions.
In this embodiment, the time period for the first collection and the time period for the pause of collection can be calculated according to the amount of the waste liquid to be discharged from the container 11, the size of the corresponding container 11, the size of the negative pressure in the waste liquid tank 21, and the like.
Step S12: after the first collection stage, suspending collection of the remaining waste liquid in at least one of the containers 11, so that the remaining waste liquid on the inner wall of each container 11 flows back below the liquid level of the waste liquid;
in addition, after the waste liquid in the container 11 is first collected, the residual waste liquid may be caught on the inner wall of the container 11 above the liquid level of the residual waste liquid. In this embodiment, the collection of the waste liquid in the container 11 is suspended after the first collection, so that the residual waste liquid enters the residual waste liquid for the next further collection.
Further, although the waste liquid tank 21 is not directly communicated with the atmosphere during the first collection, the negative pressure in the waste liquid tank 21 may be reduced after the first collection in consideration of airtightness of the apparatus or the instrument, and therefore, the negative pressure may be supplemented to the waste liquid tank 21 by the pressure supply mechanism 22 during the collection suspension, and the efficiency of collecting waste liquid later can be improved.
Of course, in some embodiments, the waste liquid may be collected while the pressure supply mechanism 22 is pumping negative pressure to the waste liquid tank 21.
Step S13: after the collection is suspended, carrying out second collection on the residual waste liquid in the at least one container 11 after the first collection under negative pressure;
the negative pressure in the waste liquid tank 21 during the second collection of the remaining waste liquid may be equal to or different from the negative pressure used during the first collection.
It should be noted that the air communication between the waste liquid treatment apparatus 20 and the container 11 means that the waste liquid pool 21 is in communication with the air in the container 11 and further in communication with the atmosphere after the remaining waste liquid in the container 11 is extracted.
In addition, the time period for the second collection of the remaining waste liquid in each container 11 may be equal or different, and in the present embodiment, the time period may be calculated according to the amount of the remaining waste liquid, the size of the corresponding container 11, the size of the negative pressure in the waste liquid tank 21, and the like.
Step S14: after the waste liquid treatment device is communicated with the air in the at least one container 11 through the second collection, the residual waste liquid on the inner wall of the at least one container 11 is subjected to a third collection under negative pressure.
It should be noted that, since there is residual waste liquid on the inner wall of the container 11 after the second collection, in order to empty the waste liquid in the container 11, the waste liquid tank 21 is communicated with the container 11 to collect the residual waste liquid on the inner wall of the container 11 into the waste liquid tank 21, thereby completing the collection of the waste liquid in the container 11.
In the present embodiment, when collecting the waste liquid in the container 11, the waste liquid is not all drawn into the waste liquid tank 21 at one time, but the first collection is performed to collect a part of the original waste liquid in the container 11, and then the collection is suspended, so that the residual waste liquid on the inner wall of the container 11 flows back to below the liquid level of the waste liquid in the container 11; then, the residual waste liquid in the container 11 is further subjected to the second collection, and after the second collection is completed, the waste liquid treatment device 20 is communicated with the air in the container 11, and the residual waste liquid on the inner wall of the container 11 after the second collection is continuously subjected to the third collection, so that the collection of the waste liquid in the container 11 is completed. In the above-described embodiment, since the waste liquid in the container 11 is collected in two parts, and after the first collection, a part of the residual waste liquid hanging on the inner wall of the container 11 is removed first, after the second collection, the third collection of the residual waste liquid is performed in a manner that the amount of the residual waste liquid on the inner wall is small compared to the amount of the residual waste liquid removed after the waste liquid is collected at one time, and the time taken is short, and since the negative pressure environment of the waste liquid treatment device 20 is communicated with the air in the container 11 when the residual waste liquid on the inner wall of the container 11 is collected in the third collection process, the empty time of the waste liquid treatment device 20 can be reduced by the above-described embodiment, and problems such as the decrease of the negative pressure in the waste liquid treatment device 20 due to the empty state, unclean removal of the waste liquid in the container 11, and the like can be reduced.
Further, referring to fig. 1-2, in one embodiment, the sample analyzer 10 may include at least one first valve 12, wherein at least one container 11, at least one liquid inlet 23, and at least one first valve 12 may have a one-to-one correspondence relationship, and each valve may be disposed between the corresponding container 11 and the corresponding liquid inlet 23.
Specifically, before the first collection of the waste liquid in the container 11, the corresponding first valve 12 may be opened to communicate between the corresponding container 11 and the liquid inlet 23, and when the first collection is completed and the collection is suspended, the first valve 12 may be closed to close the communication between the container 11 and the liquid inlet 23 of the waste liquid tank 21; further, before the second collection, the first valve 12 may be opened again to allow the second collection to be performed between the container 11 and the liquid inlet 23, and after the second collection and the third collection are performed on the waste liquid in the container 11 in sequence, the first valve 12 may be closed again to close the communication between the container 11 and the waste liquid tank 21.
In one embodiment, the number of the containers 11 may be one, and in this case, the waste liquid treatment may be performed by the waste liquid treatment apparatus 20 as it is.
In an embodiment, the number of the containers 11 may be multiple, the number of the liquid inlets 23 and the number of the first valves 12 are also multiple, and are equal to the number of the containers 11, and each liquid inlet 23 is connected to the corresponding container 11, when the waste liquid in the multiple containers 11 is processed, the multiple first valves 12 may be controlled to communicate the corresponding liquid inlets 23 with the containers 11, and the waste liquid tank 21 starts the first collection of the waste liquid in each container 11 by using the negative pressure.
It should be noted that, in the present embodiment, at the end of the first collection of the waste liquid in the plurality of containers 11, the difference between the time lengths of the second collection corresponding to the remaining waste liquid in each container 11 does not exceed the preset range.
Wherein the preset range can be set by the operator, so as to control the waste liquid treatment device 20 to perform the first collection of the waste liquid in each container 11 according to the setting result. In this way, the time period for the second collection of the waste liquid in the containers 11 can be made equal or similar, so that the waste liquid in each container 11 at least nearly completes the second collection synchronously, and then at least nearly completes the third collection synchronously, thereby reducing the situation that the waste liquid in some containers 11 does not complete the second collection, and when the waste liquid in some containers 11 completes the second collection, the waste liquid tank 21 is communicated with the atmosphere through the container 11 which completes the second collection, so that the negative pressure in the waste liquid tank 21 drops sharply, and the negative pressure is unstable.
Wherein the duration of the first collection corresponding to each container 11 is equal to the sum of the durations of the pause collections. That is, the waste liquid treatment apparatus 20 may start the second collection of the waste liquid in each container 11 at the same time.
Further, please refer to fig. 4, wherein fig. 4 is a schematic flow chart of another embodiment of the waste liquid treatment method of the present application. In this embodiment, the method for treating waste liquid may include step S21, step S22, step S23, step S24 and step S25, wherein step S21, step S22, step S23 and step S24 may be the same as step S11, step S12, step S13 and step 14, and the detailed description thereof is omitted herein.
Note that, step S25 is: the collected waste liquid is discharged to the outside of the waste liquid treatment apparatus 20.
This step may be performed after the third collection of the waste liquid in the container 11.
Specifically, the waste liquid treatment apparatus may include a second valve 25, and the second valve 25 may be disposed at the liquid outlet 24, and before the collected waste liquid is discharged, the second valve 25 may be opened so that the liquid outlet 24 communicates with the outside of the waste liquid treatment apparatus 20, so as to discharge the collected waste liquid to the outside of the waste liquid treatment apparatus 20 through the liquid outlet 24.
Further, the pressure supply mechanism 22 may be used to provide positive pressure to the waste liquid tank 21, and discharge the collected waste liquid from the liquid outlet 24 to the outside of the waste liquid treatment apparatus 20 under the action of the positive pressure.
The above embodiments of the present application will be described below with specific examples.
First, a case where the container 11 of the sample analyzer 10 includes one container 11 will be exemplified.
In an application scenario, referring to fig. 5, the sample analyzer 10 includes a container a, a first valve 12, and the waste liquid treatment device 20 includes a waste liquid tank 21, a pressure supply mechanism 22 and a second valve 25, the waste liquid tank 21 defines an inlet 23 and an outlet 24, and the pressure supply mechanism 22 is an air source for providing positive pressure or negative pressure to the waste liquid tank 21. In this application scenario, the waste liquid treatment device 20 is used for treating the waste liquid in the container a, and can be specifically realized through the following steps:
the air source provides negative pressure for the waste liquid pool 21, so that the negative pressure in the waste liquid pool 21 is maintained within a constant range;
opening the first valve 12 to communicate the liquid inlet 23 of the waste liquid tank 21 with the container a, performing first collection on the waste liquid in the container a by the waste liquid tank 21 under negative pressure, and after the first collection for a first period of time, obtaining about 1/3 of the residual waste liquid in the container a as the original waste liquid before the first collection;
then closing the first valve 12 to disconnect the communication between the container A and the liquid inlet 23 of the waste liquid tank 21, and suspending the collection of the waste liquid in the container A for a second time period, wherein in the process, the air source supplements the air pressure for the waste liquid tank 21, and the residual waste liquid on the inner wall of the container A gradually flows back to the position below the liquid level of the waste liquid in the container A;
after the residual waste liquid on the inner wall of the container A reflows to the liquid level of the waste liquid in the container A, opening the first valve 12 to communicate the liquid inlet 23 of the waste liquid tank 21 with the container A, and performing second collection on the residual waste liquid in the container A by the waste liquid tank 21 under negative pressure so that the waste liquid except the waste liquid residual on the inner wall of the container A is collected and enters the waste liquid tank 21, wherein the waste liquid tank 21 originally having negative pressure is in an empty state by communicating the container A with the atmosphere;
keeping the first valve 12 open for a fourth time so that the waste liquid on the inner wall of the container A flows into the waste liquid tank 21 uniformly, thereby completing the collection of the waste liquid;
the first valve 12 is closed and the second valve 25 is opened, so that the liquid outlet 24 of the waste liquid tank 21 is communicated with the outside of the entire sample analyzer 10, and the gas source provides positive pressure to the waste liquid tank 21 and discharges the waste liquid collected by the waste liquid tank 21 to the outside of the sample analyzer 10 through the liquid outlet 24 under the action of the positive pressure.
In another application scenario, referring to fig. 6, the sample analyzer 10 includes a container a, the waste liquid treatment device 20 is a waste liquid pump, an inlet of the waste liquid pump can be connected to the container a, and an outlet of the waste liquid pump can be connected to the outside of the sample analyzer 10.
In this application scenario, the waste liquid pump is used for treating the waste liquid in the container a, and can be specifically realized through the following steps:
starting a waste liquid pump, and enabling an inlet to be communicated with the container A so as to perform first collection on the waste liquid in the container A, wherein after the first collection for a first time period, the residual waste liquid in the container A is about 1/3 of the original waste liquid before the first collection;
then disconnecting the inlet of the waste liquid pump from the container A, and pausing the collection of the waste liquid in the container A for a second time, wherein the residual waste liquid on the inner wall of the container A gradually flows back to the liquid level of the waste liquid in the container A in the process;
after the residual waste liquid on the inner wall of the container A flows back to the liquid level of the waste liquid in the container A, the communication between the inlet of the waste liquid pump and the container A is opened to carry out second collection on the residual waste liquid in the container A, so that the waste liquid except the waste liquid residual on the inner wall of the container A is collected and enters a waste liquid pump, and the waste liquid pump is communicated with the atmosphere through the container A and is in an empty state;
keeping the waste liquid pump open for the fourth time so that the waste liquid on the inner wall of the container A is pumped into the waste liquid pump to finish the collection of the waste liquid;
after completion of the collection of the waste liquid, the inlet of the waste liquid pump is disconnected from the container a, and the outlet of the waste liquid pump is opened to communicate with the outside of the sample analyzer 10 to discharge the collected waste liquid to the outside of the sample analyzer 10.
The following exemplifies a case where the container 11 of the sample analyzer 10 includes two containers 11.
In an application scenario, referring to fig. 7, the sample analyzer 10 includes a container a, a container B, two first valves 12 and a second valve 25, the waste liquid treatment device 20 includes a waste liquid tank 21 and a pressure supply mechanism 22, the waste liquid tank 21 defines two liquid inlets 23 and a liquid outlet 24, the two liquid inlets 23 are respectively a first liquid inlet 23 and a second liquid inlet 23, and the pressure supply mechanism 22 is an air source for providing positive pressure or negative pressure to the waste liquid tank 21. In this application scenario, the waste liquid treatment apparatus 20 is configured to treat waste liquids in the container a and the container B, wherein before performing waste liquid treatment, an amount of the original waste liquid in the container a is less than an amount of the original waste liquid in the container B, and when the waste liquids in the container a and the container B are collected by using the waste liquid pool 21, flow rates of the waste liquids in the waste liquid pool 21 are equal, and the waste liquid treatment method can be specifically implemented by the following steps:
the air source provides negative pressure for the waste liquid pool 21, so that the negative pressure in the waste liquid pool 21 is maintained within a constant range;
opening the two first valves 12 to communicate the first liquid inlet 23 of the waste liquid tank 21 with the container a, communicate the second liquid inlet 23 with the container B, start first collection of waste liquid in the container a and the container B by the waste liquid tank 21 using negative pressure, and after the first collection for a first period of time, the remaining waste liquid in the container a is about 1/3 of original waste liquid before the first collection;
then closing the first valve 12 corresponding to the container A to disconnect the communication between the container A and the first liquid inlet 23 of the waste liquid tank 21, and suspending the collection of the waste liquid in the container A for a second time period, wherein in the process, the air source supplies air pressure to the waste liquid tank 21, and the residual waste liquid on the inner wall of the container A gradually flows back to the liquid level of the waste liquid in the container A;
after the first collection for the third period of time, the amount of the remaining waste liquid in the container B is equal to the amount of the remaining waste liquid in the container A;
then closing a second valve 25 corresponding to the container B to disconnect the communication between the container B and a second liquid inlet 23 of the waste liquid tank 21, and temporarily collecting the waste liquid in the container B for a fourth time period, wherein in the process, an air source supplies air pressure to the waste liquid tank 21, and the residual waste liquid on the inner wall of the container B gradually flows back to the liquid level of the waste liquid in the container B;
after the residual waste liquid on the inner wall of the container A reflows to the liquid level of the waste liquid in the container A and the residual waste liquid on the inner wall of the container B reflows to the liquid level of the waste liquid in the container B, opening the two first valves 12 to enable the first liquid inlet 23 of the waste liquid tank 21 to be communicated with the container A and the second liquid inlet 23 to be communicated with the container B, enabling the waste liquid tank 21 to simultaneously carry out second collection on the residual waste liquid in the container A and the container B by utilizing negative pressure, and after a fifth period of time, collecting the waste liquid in the container A and the waste liquid in the container B into the waste liquid tank 21 except the waste liquid residual on the inner walls of the container A and the container B, wherein the waste liquid tank 21 is in an empty state through the communication between the container A and the container B and the atmosphere;
keeping the two first valves 12 open for a sixth empty time so that the waste liquid on the inner walls of the container A and the container B flow equally to the waste liquid pool 21, thereby completing the collection of the waste liquid;
the two first valves 12 are closed, and the second valve 25 is opened, so that the liquid outlet 24 of the waste liquid tank 21 is communicated with the outside of the sample analyzer 10, and the gas source provides positive pressure to the waste liquid tank 21, and discharges the waste liquid collected by the waste liquid tank 21 to the outside of the sample analyzer 10 through the liquid outlet 24 under the action of the positive pressure.
In another application scenario, referring to fig. 8, the sample analyzer 10 includes a container a and a container B, two valves 12, and a waste liquid treatment device 20, which is a waste liquid pump, wherein an inlet of the waste liquid pump can be connected to the container a and the container B, respectively, and an outlet of the waste liquid pump can be connected to an outside of the sample analyzer 10.
Before the waste liquid treatment, the amount of the original waste liquid in the container A is less than that in the container B, and when the waste liquid pump is used for collecting the waste liquid in the container A and the container B, the flow rates of the waste liquid into the waste liquid pump are equal, and the waste liquid treatment method can be realized by the following steps:
opening the two valves 12 and starting the waste liquid pump to enable the inlet of the waste liquid pump to be respectively communicated with the container A and the container B, simultaneously starting first collection of the waste liquid in the container A and the container B through the waste liquid pump, and after the first collection for a first time period, the residual waste liquid in the container A is about 1/3 of the original waste liquid before the first collection;
then closing the valve 12 corresponding to the container A to cut off the communication between the container A and the inlet of the waste liquid pump, and suspending the collection of the waste liquid in the container A for a second time period, wherein the residual waste liquid on the inner wall of the container A gradually flows back to the liquid level of the waste liquid in the container A in the process;
after the first collection for the third period of time, the amount of the remaining waste liquid in the container B is equal to the amount of the remaining waste liquid in the container A;
then closing a valve 12 corresponding to the container B to disconnect the communication between the container B and an inlet of the waste liquid pump, and temporarily collecting the waste liquid in the container B for a fourth time period, wherein the residual waste liquid on the inner wall of the container B gradually flows back to the liquid level of the waste liquid in the container B in the process;
after the residual waste liquid on the inner wall of the container A returns to the liquid level of the waste liquid in the container A and the residual waste liquid on the inner wall of the container B returns to the liquid level of the waste liquid in the container B, the two valves 12 are opened, the inlets of the waste liquid pumps are respectively communicated with the container A and the container B, the waste liquid pump is used for carrying out second collection on the residual waste liquid in the container A and the container B simultaneously by utilizing negative pressure, after a fifth time period, the waste liquid in the container A and the waste liquid in the container B are collected and enter the waste liquid pump except the waste liquid residual on the inner walls of the container A and the container B, and the waste liquid pump is communicated with the atmosphere through the container A and the container B and is in an empty state;
keeping the two valves 12 open, and keeping the air for the sixth time period to enable the waste liquid on the inner walls of the container A and the container B to flow into the waste liquid pump uniformly, so that the collection of the waste liquid is completed;
after completion of the collection of the waste liquid, the two valves 12 are closed, and the outlet of the waste liquid pump is opened to communicate with the outside of the sample analyzer 10 to discharge the collected waste liquid to the outside of the sample analyzer 10.
Of course, in practical applications, there may be more than one or two containers 11 that need to be subjected to waste liquid treatment in the sample analyzer 10, and waste liquid treatment is specifically performed according to the method described in the present application, and details are not repeated here.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (10)
1. A waste liquid treatment method applied to a sample analyzer, wherein the sample analyzer comprises at least one container containing corresponding waste liquid, the waste liquid treatment method comprising:
the waste liquid treatment device is used for carrying out first collection on the waste liquid in the at least one container under negative pressure, so that the residual waste liquid in each container is a part of the original waste liquid;
after the first collection area is finished, stopping collecting the residual waste liquid in the at least one container, so that the residual waste liquid on the inner wall of each container flows back to the position below the liquid level of the waste liquid;
after the suspension of the collection, a second collection of the remaining waste liquid in the at least one container after the first collection is performed under negative pressure.
2. The waste liquid treatment method according to claim 1, wherein the number of the containers is one, and after the first collection, a ratio between an amount of the remaining waste liquid in the containers and an amount of the original waste liquid before the first collection is 1/6 to 2/3.
3. The liquid waste treatment method according to claim 1, wherein the number of the containers is plural;
wherein the step of the waste liquid treatment device performing a first collection of waste liquid in a plurality of the containers under negative pressure so that the remaining waste liquid in each container is a part of the original waste liquid comprises:
the waste liquid treatment device simultaneously starts the first collection of waste liquid in each container under negative pressure, so that at the end of the first collection, the ratio of the amount of the residual waste liquid to the amount of original waste liquid in each container is not more than 1/3, and the difference between the time lengths of the second collection corresponding to the residual waste liquid in each container is not more than a preset range;
after the first collection area is finished, the step of suspending collection of the residual waste liquid in the plurality of containers so that the residual waste liquid on the inner wall of each container flows back to a position below the liquid level of the waste liquid comprises the following steps:
after the first collection of the waste liquid in the corresponding container is finished, the communication between the corresponding container and the waste liquid treatment device is cut off so as to suspend collection of the residual waste liquid in each container, wherein the sum of the first collection time length corresponding to the waste liquid in each container and the collection suspension time length is equal.
4. The method of claim 1, wherein the waste fluid treatment device comprises at least one fluid inlet, the sample analyzer comprises at least one first valve, and wherein the at least one container, the at least one fluid inlet, and the at least one first valve have a one-to-one correspondence, and each first valve is disposed between a corresponding container and a fluid inlet;
wherein, the waste liquid treatment method further comprises:
and opening a corresponding first valve before performing the first collection and the second collection on the waste liquid in the at least one container so as to communicate the corresponding container with the liquid inlet, and closing the corresponding first valve after the first collection and the third collection are finished respectively so as to cut off the communication between the corresponding container and the liquid inlet.
5. The method of treating waste liquid according to claim 1, further comprising:
performing a third collection of residual waste liquid on the inner wall of the at least one container under negative pressure after the waste liquid treatment device is communicated with the air in the at least one container through the second collection;
discharging the collected waste liquid to the outside of the waste liquid treatment apparatus.
6. The liquid waste treatment method according to claim 5, wherein the liquid waste treatment apparatus comprises a liquid outlet and a second valve disposed at the liquid outlet;
wherein the step of discharging the collected waste liquid to the outside of the waste liquid treatment apparatus includes: and opening the second valve to enable the liquid outlet to be communicated with the outside of the waste liquid treatment device, and discharging the collected waste liquid to the outside of the waste liquid treatment device through the liquid outlet by utilizing positive pressure.
7. The liquid waste treatment method according to claim 1, wherein the liquid waste treatment apparatus includes a liquid waste tank and a pressure supply mechanism connected to the liquid waste tank, and the liquid waste treatment apparatus collects liquid waste through the liquid waste tank by using a negative pressure provided by the pressure supply mechanism;
wherein, in the process of suspending collection of the remaining waste liquid in the at least one container, the waste liquid treatment method further comprises:
and utilizing the pressure supply mechanism to supplement the waste liquid pool with negative pressure.
8. A waste liquid treatment apparatus for use in a sample analyzer, the sample analyzer including at least one container containing a respective waste liquid, the waste liquid treatment apparatus comprising:
the waste liquid pool is connected with the at least one container and is used for collecting waste liquid in the at least one container;
the pressure supply mechanism is connected with the waste liquid pool and provides negative pressure for the waste liquid pool, so that the waste liquid pool collects waste liquid in the at least one container under the negative pressure;
wherein the waste liquid treatment device performs a first collection of waste liquid in the at least one container under negative pressure such that the remaining waste liquid in each container is a portion of the original waste liquid; after the first collection area is finished, stopping collecting the residual waste liquid in the at least one container, so that the residual waste liquid on the inner wall of each container flows back to the position below the liquid level of the waste liquid; after the suspension of the collection, a second collection of the remaining waste liquid in the at least one container after the first collection is performed under negative pressure.
9. The waste liquid treatment apparatus according to claim 8, wherein the number of the containers is one, and after the first collection stage, a ratio of an amount of the remaining waste liquid to an amount of the original waste liquid in the container is 1/6 to 2/3; or
The number of the containers is multiple, and at the end of the first collection, the ratio of the amount of the residual waste liquid to the amount of the original waste liquid in each container is not more than 1/3;
wherein the waste liquid treatment device performs third collection of the residual waste liquid on the inner wall of the at least one container under negative pressure after communicating with the air inside the at least one container through the second collection.
10. A sample analyser comprising at least one container containing a respective waste stream, and a waste stream treatment device according to any one of claims 8 to 9.
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