Waste liquid discharge system and sample analyzer
Patent Information
- Application Number
- CN202420414836.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-04
Smart Images
Figure CN222152069U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a waste liquid discharge system and a sample analyzer. Background Art
[0002] During the sample analyzer test, the reaction liquid in the reaction cup needs to be cleaned in time. When the reaction liquid in the reaction cup is cleaned, waste liquid with a certain concentration will be generated. In order to discharge the waste liquid from the reaction cup in time, the reaction cup is connected to the waste liquid discharge tank through a pipeline, the waste liquid in the reaction cup is sucked into the waste liquid discharge tank, and then the waste liquid is discharged through the waste liquid pump.
[0003] If there is a power outage during the process of transferring the waste liquid from the reaction cup to the waste liquid discharge tank, the waste liquid will remain in the pipeline and cannot be transferred to the waste liquid discharge tank. If the waste liquid remains in the pipeline for a long time, it will corrode the pipeline, causing damage to the pipeline, which is not easy to detect, resulting in waste liquid leakage and environmental pollution.
[0004] Therefore, a new solution is needed to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a waste liquid discharge system and a sample analyzer, which are used to solve the problem in the prior art that waste liquid is retained in the pipeline and causes pipeline damage.
[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a waste liquid discharge system, which is specifically configured as follows: it includes a waste liquid discharge circuit, the waste liquid discharge circuit includes a normally open valve, a waste liquid discharge tank and a waste liquid pump connected in sequence through a pipeline, the input end of the normally open valve is connected to the waste liquid container through a pipeline, and the waste liquid discharge tank is located below the waste liquid container.
[0007] Optionally, the waste liquid discharge system also includes a waste liquid collection circuit, including a waste liquid pool connected to the waste liquid container through a pipeline, the waste liquid pool is located between the waste liquid container and the waste liquid discharge tank, and the bottom of the waste liquid pool is provided with a waste liquid output interface connected to the input end of the normally open valve, and the upper part of the waste liquid pool is provided with an air circuit interface; a negative pressure circuit, including a vacuum pump, and the vacuum pump is connected to the air circuit interface.
[0008] Optionally, the negative pressure circuit further includes a normally closed valve connected between the vacuum pump and the air circuit interface, wherein an input end of the normally closed valve is connected to the vacuum pump, and an output end of the normally closed valve is connected to the air circuit interface.
[0009] Optionally, a baffle is provided in the waste liquid pool, which separates the waste liquid pool into an upper cavity and a lower cavity that are connected. The air path interface is arranged in the upper cavity, the waste liquid output interface is arranged in the lower cavity, and the waste liquid container is connected to the lower cavity through a pipeline.
[0010] Optionally, a plurality of ventilation holes are provided on the baffle; the waste liquid collection circuit also includes a plurality of guide tubes passing through the ventilation holes, the first end of the guide tubes is connected to the waste liquid container, the second end of the guide tubes extends into the lower cavity, and a gap is provided between the guide tubes and the ventilation holes.
[0011] Optionally, at least one waste liquid collection circuit is provided; when multiple waste liquid collection circuits are provided, the air path interface of each waste liquid collection circuit is connected to the output end of the normally closed valve, or each waste liquid collection circuit is connected to a corresponding negative pressure circuit.
[0012] Optionally, at least one waste liquid discharge circuit is provided, one waste liquid collection circuit is connected to one waste liquid discharge circuit, or one waste liquid collection circuit is connected to multiple waste liquid discharge circuits, or multiple waste liquid collection circuits are connected to one waste liquid discharge circuit.
[0013] Optionally, at least one waste liquid output interface is provided; and at least one waste liquid input interface for connecting to the waste liquid collection circuit is provided on the waste liquid discharge tank.
[0014] Optionally, a float switch is provided in the waste liquid discharge tank to detect the amount of waste liquid stored in the waste liquid discharge tank.
[0015] The utility model also provides a sample analyzer, which comprises any one of the waste liquid discharge systems described above.
[0016] As described above, the waste liquid discharge system and sample analyzer of the utility model have the following beneficial effects:
[0017] The waste liquid container and the waste liquid discharge tank are connected by a pipeline. The waste liquid discharge tank is located below the waste liquid container, and a normally open valve is provided on the pipeline connecting the two, so that in the event of a power outage, the waste liquid can also flow into the waste liquid discharge tank under the action of gravity, and will not be retained in the pipeline to corrode the pipeline, which is beneficial to increasing the service life of the pipeline and reducing costs; and reduces the probability of waste liquid leakage, which is beneficial to protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Shown is a schematic structural diagram of a waste liquid discharge system according to an embodiment of the utility model.
[0019] Description of Reference Numerals
[0020] 1- Normally open valve;
[0021] 2-waste liquid discharge tank; 21-waste liquid input interface;
[0022] 3- Waste liquid pump;
[0023] 4-waste liquid tank; 41-waste liquid output interface; 42-gas line interface; 43-baffle; 44-flow guide pipe;
[0024] 5- Vacuum pump;
[0025] 6-Normal Closed Valve
[0026] 7- Float switch. DETAILED DESCRIPTION
[0027] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.
[0028] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The form, quantity and proportion of each component during actual implementation can be changed at will, and the component layout form may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantial change of the technical content.
[0029] Before describing the embodiments of the utility model in detail, the application environment of the utility model is described first. The technology of the utility model is mainly applied to how to discharge the waste liquid generated during the test of the sample analyzer, and solve the technical problem of waste liquid being retained in the pipeline and causing damage to the pipeline. Before the improvement of the utility model, waste liquid leakage occurred. After long-term observation, it was found that the leakage of waste liquid was due to damage to the pipeline. After continuous analysis, the cause of pipeline damage can be the following two situations: the waste liquid is directly extracted into the waste liquid discharge tank through the pipeline, which is easy to bubble or splash, and the foam can enter the pipeline through the pipeline port. When the power is suddenly cut off, the foam will burst and form fluid waste liquid retained in the pipeline, corroding the pipeline; or, a normally closed valve is set between the waste liquid container and the waste liquid discharge tank. When the power is suddenly cut off, the normally closed valve is closed, and a part of the extracted waste liquid will be deposited at the input end of the normally closed valve, corroding the pipeline and the normally closed valve.
[0030] like Figure 1 As shown, some embodiments of the present application provide a waste liquid discharge system, including a waste liquid discharge circuit. The waste liquid discharge circuit includes a normally open valve 1, a waste liquid discharge tank 2 and a waste liquid pump 3 which are sequentially connected through a pipeline. The waste liquid flows into the waste liquid discharge tank 2 through the normally open valve 1, and is finally discharged from the waste liquid discharge tank 2 under the action of the waste liquid pump 3. The input end of the normally open valve 1 is connected to the waste liquid container through a pipeline, and the waste liquid discharge tank 2 is located below the waste liquid container. Such an arrangement enables the waste liquid in the pipeline to flow into the waste liquid discharge tank 2 under the action of gravity in the event of a power outage, and will not be retained in the pipeline, thereby avoiding damage to the pipeline by the waste liquid, which is beneficial to increasing the service life of the pipeline. At the same time, the probability of waste liquid leakage is also reduced, which is beneficial to environmental protection.
[0031] It should be noted that the pipelines connecting the various devices are not bent downward to form a groove for accommodating waste liquid, which prevents the waste liquid from being deposited in the pipeline and allows it to flow downward under the action of gravity.
[0032] Exemplarily, the waste liquid container is a container that generates waste liquid, including but not limited to being configured as a reaction cup, a cleaning waste liquid pool, etc.
[0033] Exemplarily, the normally open valve 1 is a valve that is open under natural conditions without power or action, including but not limited to being set as a normally open solenoid valve, a ball valve, etc.
[0034] In some embodiments, in order to prevent the waste liquid from bubbling in the waste liquid discharge tank 2, which makes it impossible to detect the storage amount of the waste liquid in the waste liquid discharge tank 2, the waste liquid container is connected to the waste liquid discharge circuit through a waste liquid collection circuit. The waste liquid collection circuit includes a waste liquid pool 4 connected to the waste liquid container through a pipeline, and the waste liquid pool 4 is located between the waste liquid container and the waste liquid discharge tank 2, that is, the waste liquid pool 4 is also located above the waste liquid discharge tank 2. A waste liquid output interface 41 connected to the input end of the normally open valve 1 is provided at the bottom of the waste liquid pool 4, and a gas path interface 42 is provided at the upper part of the waste liquid pool 4.
[0035] The waste liquid collection circuit is also connected to the negative pressure circuit to extract the waste liquid from the waste liquid container into the waste liquid pool 4 through the negative pressure circuit. The negative pressure circuit includes a vacuum pump 5, which is connected to the gas circuit interface 42 arranged on the upper part of the waste liquid pool 4. When it is necessary to extract the waste liquid in the waste liquid container, the normally open valve 1 is closed and the vacuum pump 5 is turned on to form a negative pressure environment in the waste liquid pool 4 to extract the waste liquid into the waste liquid pool 4. When the waste liquid in the waste liquid container is completely extracted, the normally open valve 1 is opened and the vacuum pump 5 is closed so that the waste liquid in the waste liquid pool 4 flows from the waste liquid output interface 41 through the normally open valve 1 into the waste liquid discharge tank 2 under the action of gravity to discharge the waste liquid.
[0036] In some embodiments, since the waste liquid is pumped into the waste liquid pool 4 by the vacuum pump 5, the incoming waste liquid will violently collide with the waste liquid pool 4 or the waste liquid that enters the waste liquid pool 4 first, thereby generating foam. In order to prevent the foam from being sucked into the vacuum pump 5, thereby damaging the vacuum pump 5, a baffle 43 is provided in the waste liquid pool 4. The baffle 43 separates the waste liquid pool 4 into an upper cavity and a lower cavity that are connected, the air path interface 42 is provided in the upper cavity, and the waste liquid output interface 41 is provided in the lower cavity. Among them, the waste liquid container is connected to the lower cavity through a pipeline. When the foam contacts the baffle 43, it will automatically burst, so that the foam is basically isolated in the lower cavity and will not enter the upper cavity, thereby effectively protecting the vacuum pump 5 and improving the service life of the vacuum pump 5.
[0037] Specifically, a plurality of vent holes are provided on the baffle 43 so that the upper cavity is connected with the lower cavity. Under the action of the vacuum pump 5, the lower cavity also forms a negative pressure environment to extract the waste liquid into the waste liquid pool 4.
[0038] In some embodiments, the waste liquid collection circuit further includes a plurality of guide tubes 44 penetrating the vents, the first ends of the guide tubes 44 being connected to the waste liquid container through pipelines, the second ends of the guide tubes 44 extending into the lower cavity, and the waste liquid flows into the lower cavity through the guide tubes 44. In order to make the upper cavity and the lower cavity connected, a gap is provided between the guide tubes 44 and the vents.
[0039] Exemplarily, the guide tube 44 is fixedly connected to the cover of the waste liquid pool 4, the first end of the guide tube 44 extends out of the cover, and each guide tube 44 is connected to a corresponding waste liquid container.
[0040] It should be noted that, in order to further protect the vacuum pump 5 from being damaged, the negative pressure circuit also includes a normally closed valve 6 connected between the vacuum pump 5 and the air circuit interface 42, the input end of the normally closed valve 6 is connected to the vacuum pump 5, and the output end of the normally closed valve 6 is connected to the air circuit interface 42 of the waste liquid pool 4. When the waste liquid in the waste liquid container is completely extracted, the vacuum pump 5 and the normally closed valve 6 are both closed. At this time, the waste liquid in the waste liquid pool 4 still has bubbles. Since no waste liquid enters the waste liquid pool 4 again to impact the original waste liquid, the diameter of the foam generated in the waste liquid pool 4 is relatively small at this time, and the foam may enter the upper cavity of the waste liquid pool 4 through the gap between the vent and the guide tube 44, and further enter the negative pressure circuit through the air circuit interface 42. At this time, since the normally closed valve 6 is closed, the foam cannot enter the vacuum pump 5, avoiding damage to the vacuum pump 5, which is conducive to improving the service life of the vacuum pump 5. When the vacuum pump 5 is suddenly powered off during the process of extracting waste liquid, the normally closed valve 6 can also isolate the foam well to prevent the foam from entering the vacuum pump 5.
[0041] Exemplarily, the normally closed valve 6 is a valve that is closed under natural conditions without power or action, including but not limited to being set as a normally closed solenoid valve, a ball valve, etc.
[0042] In some embodiments, at least one waste liquid collection circuit is provided, that is, 1, 2, 3, etc. waste liquid collection circuits may be provided according to actual needs.
[0043] Exemplarily, when there are multiple waste liquid collection circuits, the gas circuit interface 42 on the waste liquid pool 4 of each waste liquid collection circuit is connected to the output end of the normally closed valve 6 of the negative pressure circuit through a pipeline, that is, one negative pressure circuit can control multiple waste liquid collection circuits to extract waste liquid at the same time, which is conducive to cost saving. Alternatively, each waste liquid collection circuit is connected to a corresponding negative pressure circuit, that is, each waste liquid collection circuit can be controlled separately, and one waste liquid collection circuit can be used to extract waste liquid at a time, or two waste liquid collection circuits can be used to extract waste liquid, and so on, which is conducive to improving the versatility of the present application.
[0044] It should be noted that when multiple waste liquid collection loops are provided, the waste liquid pool 4 of each waste liquid collection loop can extract waste liquid of different concentrations, that is, the waste liquid concentrations in the waste liquid pool 4 of each waste liquid collection loop are different.
[0045] In some embodiments, at least one waste liquid discharge circuit is provided, that is, 1, 2, 3, etc. waste liquid discharge circuits may be provided according to actual needs.
[0046] Exemplarily, when both a waste liquid collection circuit and a waste liquid discharge circuit are provided, the waste liquid collection circuit is connected to the waste liquid discharge circuit; when one waste liquid collection circuit is provided and multiple waste liquid discharge circuits are provided, one waste liquid collection circuit is connected to multiple waste liquid discharge circuits; when multiple waste liquid collection circuits are provided and one waste liquid discharge circuit is provided, multiple waste liquid collection circuits are connected to one waste liquid discharge circuit; when both a waste liquid collection circuit and a waste liquid discharge circuit are provided with multiple circuits, one waste liquid collection circuit can be connected to multiple waste liquid discharge circuits, or multiple waste liquid collection circuits can be connected to one waste liquid discharge circuit, and the arrangement is performed according to actual needs.
[0047] In some embodiments, at least one waste liquid output interface 41 is provided on the waste liquid pool 4, and the number of waste liquid output interfaces 41 can be set to 1, 2, 3, etc., according to actual needs. At least one waste liquid input interface 21 is provided on the waste liquid discharge tank 2, and the number of waste liquid input interfaces 21 can be set to 1, 2, 3, etc., according to actual needs. Among them, the waste liquid input interface 21 is used to connect to the waste liquid collection circuit, and each waste liquid input interface 21 is connected to a corresponding waste liquid collection circuit.
[0048] Specifically, when a waste liquid collection circuit corresponds to multiple waste liquid discharge circuits, multiple waste liquid output interfaces 41 are provided on the waste liquid pool 4, and each waste liquid output interface 41 corresponds to a waste liquid discharge circuit, so as to quickly discharge the waste liquid in the waste liquid pool 4 and improve the waste liquid discharge efficiency. When multiple waste liquid collection circuits correspond to one waste liquid discharge circuit, multiple waste liquid input interfaces 21 need to be provided on the waste liquid discharge tank 2, and each waste liquid input interface 21 corresponds to a waste liquid collection circuit, so that the waste liquid discharge tank 2 can discharge the waste liquid extracted by multiple waste liquid collection circuits at the same time, which is conducive to reducing costs.
[0049] It should be noted that a float switch 7 is provided in the waste liquid discharge tank 2 to detect the amount of waste liquid stored in the waste liquid discharge tank 2. In particular, for the case where a waste liquid discharge circuit corresponds to multiple waste liquid collection circuits, since the flow rate of waste liquid flowing into the waste liquid discharge tank 2 is greater than the flow rate of waste liquid discharged from the waste liquid discharge tank 2, the waste liquid pump 3 cannot discharge the waste liquid from the waste liquid tank in time. The waste liquid will be stored in the waste liquid discharge tank 2, and the longer the time, the more waste liquid is stored in the waste liquid discharge tank 2, and the float switch 7 is required to detect the amount of waste liquid stored in the waste liquid discharge tank 2. When the storage amount of waste liquid in the waste liquid discharge tank 2 exceeds the predetermined waste liquid storage amount, the float switch 7 will alarm, and the waste liquid discharge system of the present application will be shut down and wait for maintenance.
[0050] To sum up, the utility model provides a waste liquid discharge system, which connects the waste liquid container and the waste liquid discharge tank through a pipeline. The waste liquid discharge tank is located below the waste liquid container, and a normally open valve is provided on the pipeline connecting the two, so that in the case of power failure, the waste liquid can also flow into the waste liquid discharge tank under the action of gravity, and will not be trapped in the pipeline to corrode the pipeline, which is beneficial to improve the service life of the pipeline and reduce costs; and reduces the probability of waste liquid leakage, which is beneficial to environmental protection.
[0051] The utility model also provides a sample analyzer, which comprises the above-mentioned waste liquid discharge system.
[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.
Claims
1. A waste liquid discharge system, characterized in that: include The waste liquid discharge circuit comprises a normally open valve, a waste liquid discharge tank and a waste liquid pump which are sequentially connected through a pipeline. The input end of the normally open valve is connected to the waste liquid container through a pipeline, and the waste liquid discharge tank is located below the waste liquid container.
2. The waste liquid discharge system according to claim 1, characterized in that: The waste liquid discharge system also includes a waste liquid collection circuit, including a waste liquid pool connected to the waste liquid container through a pipeline, the waste liquid pool is located between the waste liquid container and the waste liquid discharge tank, and the bottom of the waste liquid pool is provided with a waste liquid output interface connected to the input end of the normally open valve, and the upper part of the waste liquid pool is provided with a gas path interface; The negative pressure circuit comprises a vacuum pump, and the vacuum pump is connected to the air circuit interface.
3. The waste liquid discharge system according to claim 2, characterized in that: The negative pressure circuit also includes a normally closed valve connected between the vacuum pump and the air circuit interface, the input end of the normally closed valve is connected to the vacuum pump, and the output end of the normally closed valve is connected to the air circuit interface.
4. The waste liquid discharge system according to claim 2 or 3, characterized in that: A baffle is arranged in the waste liquid pool, which divides the waste liquid pool into an upper cavity and a lower cavity that are connected. The air path interface is arranged in the upper cavity, the waste liquid output interface is arranged in the lower cavity, and the waste liquid container is connected to the lower cavity through a pipeline.
5. The waste liquid discharge system according to claim 4, characterized in that: A plurality of ventilation holes are arranged on the baffle plate; the waste liquid collection circuit also includes a plurality of guide tubes passing through the ventilation holes, the first ends of the guide tubes are connected to the waste liquid container, the second ends of the guide tubes extend into the lower cavity, and a gap is arranged between the guide tubes and the ventilation holes.
6. The waste liquid discharge system according to claim 3, characterized in that: At least one waste liquid collection circuit is provided; when multiple waste liquid collection circuits are provided, the air path interface of each waste liquid collection circuit is connected to the output end of the normally closed valve, or each waste liquid collection circuit is connected to a corresponding negative pressure circuit.
7. The waste liquid discharge system according to claim 6, characterized in that: The waste liquid discharge circuit is provided with at least one, one waste liquid collection circuit is connected to one waste liquid discharge circuit, or one waste liquid collection circuit is connected to multiple waste liquid discharge circuits, or multiple waste liquid collection circuits are connected to one waste liquid discharge circuit.
8. The waste liquid discharge system according to claim 7, characterized in that: The waste liquid discharge tank is provided with at least one waste liquid input interface for connecting to the waste liquid collection circuit.
9. The waste liquid discharge system according to claim 1 or 6, characterized in that: The waste liquid discharge tank is provided with a float switch to detect the amount of waste liquid stored in the waste liquid discharge tank.
10. A sample analyzer, characterized in that: The sample analyzer comprises the waste liquid discharge system according to any one of claims 1-9.