Liquid path system of homogeneous luminescence immunoassay analyzer

Abstract

The utility model relates to a liquid path system of a homogeneous luminescence immunoassay analyzer. The liquid path system comprises a liquid storage barrel, a degassing tank, a buffer tank and a pipetting module, a water outlet of the liquid storage barrel is connected with a water inlet of the degassing tank through a first electromagnetic valve; a water outlet of the degassing tank is connected with a water inlet of the buffer tank through a second electromagnetic valve; a water outlet of the buffer tank is connected with the pipetting module through the pressurizing module; an exhaust port of the degassing tank is connected with a degassing pump through a third electromagnetic valve, and an exhaust port of the buffer tank is connected with the degassing pump through a fourth electromagnetic valve. Pure water in the degassing tank is subjected to degassing treatment in the degassing pump, then the buffer tank is communicated with the degassing pump, so that air in the buffer tank is pumped away under the action of the degassing pump, the buffer tank is filled with the degassed pure water, and the degassed pure water is provided for the pipetting module under the action of the pressure pump; the phenomena of abnormal and frequent needle blocking and air suction caused by dissolved air in the pure water are effectively prevented, and the sample adding accuracy is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a liquid path system of a homogeneous luminescent immunoassay analyzer. Background Art

[0002] Luminescent immunoassay refers to an analytical method in which a sample is mixed with a variety of reagents including magnetic particles and enzyme markers to allow an antigen-antibody reaction to occur, a chemiluminescent substrate is added, and an immunoassay is performed based on the luminescent intensity.

[0003] The existing fully automatic luminescent immunoassay analyzer generally uses a sample needle to transfer samples and reagents in order and quantitatively for mixing, and uses a cleaning fluid to clean the sample needle after each sample addition. For example, the Chinese patent with the publication number CN217005985U provides a liquid circuit monitoring device for a pipette cleaning system, including: a buffer tank, the buffer tank is connected between the pipette and the cleaning fluid storage tank, and is used to receive the cleaning fluid from the cleaning fluid storage tank and transport it to the pipette; a first delivery pipeline is arranged between the buffer tank and the cleaning fluid storage tank, a first driving pump is arranged in the first delivery pipeline, a second delivery pipeline is arranged between the buffer tank and the pipette, and a second driving pump is arranged in the second delivery pipeline, and the second driving pump is used to pump the cleaning fluid in the buffer tank to the pipette. Since the cleaning fluid will dissolve a certain amount of air, the air dissolved in the cleaning fluid is easy to overflow, resulting in abnormal needle blocking and empty suction detection functions, which can easily cause inaccurate sample addition.

[0004] Therefore, the prior art has a large room for improvement. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to propose a liquid path system of a homogeneous luminescent immunoassay analyzer, which degasses the pure water used for cleaning, effectively preventing abnormal and frequent needle blockage and empty suction due to dissolved air in the pure water, and is conducive to improving the accuracy of sample addition.

[0006] In order to achieve the above object, the utility model is implemented through the following technical solutions:

[0007] The utility model discloses a liquid circuit system of a homogeneous luminescent immunoassay analyzer, comprising a liquid storage barrel, a degassing tank, a buffer tank and a pipetting module; the water outlet of the liquid storage barrel is connected to the water inlet of the degassing tank through a first solenoid valve; the water outlet of the degassing tank is connected to the water inlet of the buffer tank through a second solenoid valve; the water outlet of the buffer tank is connected to the pipetting module through a pressurizing module; the exhaust port of the degassing tank is connected to a degassing pump through a third solenoid valve, and the exhaust port of the buffer tank is connected to the degassing pump through a fourth solenoid valve.

[0008] Through the above-mentioned structural arrangement, a cleaning fluid such as pure water is added into the degassing tank, the third solenoid valve is opened to connect the degassing pump with the degassing tank, the degassing pump 4 is turned on to allow pure water to enter the degassing tank 2, and the pure water in the degassing tank is degassed, and then the second solenoid valve is opened to connect the degassing tank with the buffer tank, and the fourth solenoid valve is opened to connect the buffer tank with the degassing pump. Under the action of the degassing pump, the air in the buffer tank is extracted and the degassed pure water is filled in the buffer tank. Then, under the action of the pressurizing module, degassed pure water is provided to the pipetting module, which effectively prevents needle blockage and empty suction due to the presence of dissolved oxygen in the pure water, and is beneficial to improving the accuracy of sample addition.

[0009] According to the above solution, a heating module and a double float sensor are provided in the degassing tank, and a negative pressure sensor is installed on the degassing tank.

[0010] By setting a heating module, the pure water in the degassing tank can be heated, so that the gas dissolved in the pure water can be more easily precipitated. The negative pressure sensor detects the negative pressure in the degassing tank, so that the controller can control the start and stop of the degassing pump according to the signal transmitted by the negative pressure sensor. The double float sensor is used to detect whether the water level in the degassing tank reaches the preset maximum water level and minimum water level, so that the controller can control the opening and closing of the degassing pump, the third solenoid valve and the first solenoid valve according to the signal transmitted by the double float sensor, thereby automatically controlling the addition of pure water in the liquid storage barrel into the degassing tank.

[0011] According to the above solution, the volume between the upper float of the double float sensor in the degassing tank and the top of the degassing tank, and the volume between the upper float and the lower float of the double float sensor are both greater than the volume of the buffer tank.

[0012] By setting the volume between the upper and lower floats of the double float sensor to be larger than the volume of the buffer tank, the timely supply of pure water can be ensured. By setting the volume of the upper float of the double float sensor from the top of the degassing tank to be larger than the volume of the buffer tank, before each instrument startup test, all the pure water in the buffer tank can be sucked back into the degassing tank for degassing again, so that the instrument can maintain the best working condition.

[0013] According to the above solution, a bubble sensor is installed on the buffer tank.

[0014] Pure water can flow from the degassing tank to the buffer tank for storage through the negative pressure traction of the degassing pump. The bubble sensor is used to detect the liquid level in the buffer tank, so that the buffer tank is filled with liquid and the contact time between the liquid and the air is reduced.

[0015] According to the above solution, the third solenoid valve and the fourth solenoid valve are both three-way valves, and the exhaust ends of the three-way valves are connected to the atmosphere.

[0016] The exhaust end of the three-way valve is connected to the atmosphere to balance the pressure of the degassing tank and the buffer tank with the atmosphere, thereby improving the safety of use.

[0017] According to the above scheme, the pressurizing module includes a pressurizing pump and an energy storage tank, the pressurizing pump is connected between the water outlet of the buffer tank and the water inlet of the energy storage tank, the water outlet of the energy storage tank is connected to the pipetting module; a pressure sensor is provided on the water outlet of the energy storage tank.

[0018] The pressure sensor is used to detect the water pressure of the energy storage tank. Under normal circumstances, high-pressure water is pre-stored in the energy storage tank, and the energy storage tank provides high-pressure water to the pipetting module. The booster pump will only start when the water pressure in the energy storage tank is insufficient, thereby avoiding frequent startup of the booster pump and causing water pressure fluctuations.

[0019] According to the above scheme, the pipetting module includes a sample adding component, a reagent adding component, a cleaning component and a waste liquid recovery component, and the sample adding component, the reagent adding component and the cleaning component are respectively connected to the water outlet of the energy storage tank; the waste liquid recovery component includes a water receiving trough and a waste liquid barrel, and the water receiving trough and the cleaning component are respectively connected to the waste liquid barrel.

[0020] According to the above scheme, the sample adding component includes a fifth solenoid valve, a first plunger pump and a TIP head fixing column connected in sequence, the TIP head fixing column is detachably connected to the TIP head, and the first plunger pump is connected to a needle blocking sensor; the fifth solenoid valve is connected to the water outlet of the energy storage tank.

[0021] The TIP head is used to replace the traditional steel needle in the sample loading component. The TIP head is discarded after each sample transfer, effectively eliminating the carryover contamination between samples. The pipe of the sample loading component is filled with degassed pure water. The incompressibility of the liquid is used to achieve the same precise injection of trace samples as a steel needle, and excellent response speed even when the TIP head is used for sample loading. When performing sample transfer, the TIP head is installed on the TIP head fixing column, the fifth solenoid valve is closed, and the TIP head is used to suck and discharge the sample through the first plunger pump, that is, the transfer operation.

[0022] According to the above scheme, the reagent adding component includes a sixth solenoid valve, a second plunger pump and a reagent adding needle connected in sequence, and the second plunger pump is connected to an air suction sensor; the sixth solenoid valve is connected to the water outlet of the energy storage tank.

[0023] When performing reagent pipetting, the sixth solenoid valve is closed, and the second plunger pump is used to achieve the reagent suction and discharge, i.e., the pipetting operation; the air suction sensor can perform real-time sample suction monitoring of easily foaming reagents to prevent abnormal sample suction values ​​caused by bubbles interfering with liquid level detection.

[0024] According to the above scheme, the cleaning component includes a seventh solenoid valve and a cleaning tank, the cleaning tank is connected to the water outlet of the energy storage tank through the seventh solenoid valve, and the water outlet of the cleaning tank is connected to the waste liquid barrel.

[0025] When the sample adding component completes the pipetting operation, the TIP head is discarded, and then the TIP head fixing column is transferred to the water receiving tank, and the fifth solenoid valve is opened to transport the high-pressure water in the energy storage tank to the TIP head fixing column for cleaning. The cleaning waste liquid is received by the water receiving tank and flows into the waste liquid bucket. When the reagent adding component completes the pipetting operation, the reagent adding needle is transferred to the cleaning tank, and the sixth solenoid valve is opened to transport the high-pressure water in the energy storage tank to the reagent adding needle to clean the inner wall of the reagent adding needle; then the seventh solenoid valve is opened to transport the high-pressure water in the energy storage tank to the cleaning tank to clean the outer wall of the reagent adding needle; the cleaning waste liquid is received by the cleaning tank and flows into the waste liquid bucket.

[0026] The beneficial effects of the utility model are:

[0027] The utility model arranges the liquid path system of the homogeneous luminescent immunoassay analyzer so that the pure water in the degassing tank is degassed in the degassing tank, and then the buffer tank is connected with the degassing pump so that the air in the buffer tank is sucked out by the degassing pump and the degassed pure water is filled in the buffer tank, and the degassed pure water is provided to the pipetting module under the action of the pressure pump, effectively preventing abnormal and frequent needle blockage and empty suction phenomena due to the presence of dissolved air in the pure water, which is beneficial to improving the accuracy of sample addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the liquid path system of the homogeneous luminescent immunoassay analyzer of the utility model.

[0029] In the figure: 1. liquid storage barrel; 11. first solenoid valve; 2. degassing tank; 21. second solenoid valve; 22. third solenoid valve; 23. heating module; 24. double float sensor; 25. negative pressure sensor; 3. buffer tank; 31. fourth solenoid valve; 32. bubble sensor; 4. degassing pump; 5. pressure pump; 51. energy storage tank; 511. pressure sensor; 6. TIP head fixing column; 61. TIP head; 62. needle blocking sensor; 63. first plunger pump; 64. fifth solenoid valve; 7. reagent adding needle; 71. air suction sensor; 72. second plunger pump; 73. sixth solenoid valve; 8. cleaning tank; 81. seventh solenoid valve; 9. waste liquid barrel; 91. water receiving tank. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1As shown, the utility model provides a liquid circuit system of a homogeneous luminescent immunoassay analyzer, comprising a liquid storage barrel 1, a degassing tank 2, a buffer tank 3 and a pipetting module; the water outlet of the liquid storage barrel 1 is connected to the water inlet of the degassing tank 2 through a first solenoid valve 11; the water outlet of the degassing tank 2 is connected to the water inlet of the buffer tank 3 through a second solenoid valve 21; the water outlet of the buffer tank 3 is connected to the pipetting module through a pressurizing module; the exhaust port of the degassing tank 2 is connected to the degassing pump 4 through a third solenoid valve 22, and the exhaust port of the buffer tank 3 is connected to the degassing pump 4 through a fourth solenoid valve 31.

[0032] Through the above-mentioned structural arrangement, a cleaning fluid such as pure water is added into the degassing tank 2, the third solenoid valve 22 is opened to connect the degassing pump 4 with the degassing tank 2, the degassing pump 4 is turned on to allow pure water to enter the degassing tank 2, and the pure water in the degassing tank 2 is degassed, and then the second solenoid valve 21 is opened to connect the degassing tank 2 with the buffer tank 3, and the fourth solenoid valve 31 is opened to connect the buffer tank 3 with the degassing pump 4, and the air in the buffer tank 3 is extracted and the degassed pure water is filled in the buffer tank 3 under the action of the degassing pump 4, and then the degassed pure water is provided to the pipetting module under the action of the pressurizing module, which effectively prevents needle blockage and empty suction due to the presence of dissolved oxygen in the pure water, and is beneficial to improving the accuracy of sample addition.

[0033] Furthermore, a heating module 23 and a double float sensor 24 are provided in the degassing tank 2 , and a negative pressure sensor 25 is installed on the degassing tank 2 .

[0034] By setting a heating module 23, the pure water in the degassing tank 2 can be heated, so that the gas dissolved in the pure water can be more easily precipitated. The negative pressure sensor 25 detects the negative pressure in the degassing tank 2, so that the controller can control the start and stop of the degassing pump 4 according to the signal transmitted by the negative pressure sensor 25. The double float sensor 24 is used to detect whether the water level in the degassing tank 2 reaches the preset maximum water level and minimum water level, so that the controller can control the start and close of the degassing pump 4, the third solenoid valve 22 and the first solenoid valve 11 according to the signal transmitted by the double float sensor 24, thereby automatically controlling the addition of the pure water in the liquid storage barrel 1 into the degassing tank 2.

[0035] Furthermore, the volume between the upper float of the double float sensor 24 in the degassing tank 2 and the top of the degassing tank 2 , and the volume between the upper float and the lower float of the double float sensor 24 are both greater than the volume of the buffer tank 3 .

[0036] By setting the volume between the upper and lower floats of the double float sensor 24 to be larger than the volume of the buffer tank 3, it is possible to ensure that pure water is supplied in a timely manner. By setting the volume of the upper float of the double float sensor 24 from the top of the degassing tank 2 to be larger than the volume of the buffer tank 3, before each instrument startup test, all the pure water in the buffer tank 3 can be sucked back into the degassing tank 2 for degassing again, so that the instrument can maintain the best working condition.

[0037] Furthermore, a bubble sensor 32 is installed on the buffer tank 3. Pure water can flow from the degassing tank 2 to the buffer tank 3 for storage through the negative pressure traction of the degassing pump 4. The bubble sensor 32 is used to detect the liquid level in the buffer tank 3, so that the buffer tank 3 is filled with liquid and the contact time between the liquid and the air is reduced.

[0038] Furthermore, the third solenoid valve 22 and the fourth solenoid valve 31 are both three-way valves, and the exhaust ends of the three-way valves are connected to the atmosphere.

[0039] The exhaust end of the three-way valve is connected to the atmosphere to balance the pressure of the degassing tank 2 and the buffer tank 3 with the atmosphere, thereby improving the safety of use.

[0040] Furthermore, the pressurizing module includes a pressurizing pump 5 and an energy storage tank 51, the pressurizing pump 5 is connected between the water outlet of the buffer tank 3 and the water inlet of the energy storage tank 51, the water outlet of the energy storage tank 51 is connected to the pipetting module; a pressure sensor 511 is provided on the water outlet of the energy storage tank 51.

[0041] The pressure sensor 511 is used to detect the water pressure of the energy storage tank 51. Under normal circumstances, high-pressure water is pre-stored in the energy storage tank 51, and the energy storage tank 51 provides high-pressure water to the liquid transfer module. The booster pump 5 will only start when the water pressure of the energy storage tank 51 is insufficient, thereby avoiding frequent startup of the booster pump 5 and causing water pressure fluctuations.

[0042] Furthermore, the pipetting module includes a sample adding component, a reagent adding component, a cleaning component and a waste liquid recovery component, and the sample adding component, the reagent adding component and the cleaning component are respectively connected to the water outlet of the energy storage tank 51; the waste liquid recovery component includes a water receiving trough 91 and a waste liquid barrel 9, and the water receiving trough 91 and the cleaning component are respectively connected to the waste liquid barrel 9.

[0043] Furthermore, the sample adding component includes a fifth solenoid valve 64, a first plunger pump 63 and a TIP head fixing column 6 which are connected in sequence, the TIP head fixing column 6 is detachably connected to a TIP head 61, and the first plunger pump 63 is connected to a needle blocking sensor 62; the fifth solenoid valve 64 is connected to the water outlet of the energy storage tank 51.

[0044] The TIP head 61 is used in the sample loading component to replace the traditional steel needle. The TIP head 61 is discarded after each sample transfer, effectively eliminating the carryover contamination between samples. The pipeline of the sample loading component is filled with degassed pure water. The incompressibility of the liquid is used to make it possible to achieve the same precise injection of trace samples as a steel needle, and an excellent response speed, even if the TIP head 61 is used for sample loading. When performing sample transfer, the TIP head 61 is installed on the TIP head fixing column 6, the fifth solenoid valve 64 is closed, and the TIP head 61 is used to suck and discharge the sample through the first plunger pump 63, that is, the transfer operation.

[0045] According to the above scheme, the reagent adding component includes a sixth solenoid valve 73, a second plunger pump 72 and a reagent adding needle 7 connected in sequence, and the second plunger pump 72 is connected to an air suction sensor 71; wherein the sixth solenoid valve 73 is connected to the water outlet of the energy storage tank 51.

[0046] When performing reagent pipetting, the sixth solenoid valve 73 is closed, and the reagent needle 7 is used to suck and discharge the reagent through the second plunger pump 72, i.e., the pipetting operation; the air suction sensor 71 can perform real-time sample suction monitoring of easily foaming reagents to prevent abnormal sample suction values ​​caused by bubbles interfering with liquid level detection.

[0047] Furthermore, the cleaning component includes a seventh solenoid valve 81 and a cleaning tank 8 , wherein the cleaning tank 8 is connected to the water outlet of the energy storage tank 51 via the seventh solenoid valve 81 , and the water outlet of the cleaning tank 8 is connected to the waste liquid barrel 9 .

[0048] When the sample adding component completes the pipetting operation, the TIP head 61 is discarded, and then the TIP head fixing column 6 is transferred to the water receiving tank 91, and the fifth solenoid valve 64 is opened to transport the high-pressure water in the energy storage tank 51 to the TIP head fixing column 6 for cleaning, and the cleaning waste liquid is received by the water receiving tank 91 and flows into the waste liquid barrel 9. When the reagent adding component completes the pipetting operation, the reagent adding needle 7 is transferred to the cleaning tank 8, and the sixth solenoid valve 73 is opened to transport the high-pressure water in the energy storage tank 51 to the reagent adding needle 7 to clean the inner wall of the reagent adding needle 7; then the seventh solenoid valve 81 is opened to transport the high-pressure water in the energy storage tank 51 to the cleaning tank 8 to clean the outer wall of the reagent adding needle 7; the cleaning waste liquid is received by the cleaning tank 8 and flows into the waste liquid barrel 9.

[0049] In this embodiment, the waste liquid barrel 9 can be arranged below the cleaning tank 8 and the water receiving tank 91, and the height difference of the whole machine can be used to make the cleaning waste liquid flow into the waste liquid barrel 9 by gravity, without the need to use a waste liquid pump to pump out the liquid, thereby reducing costs and preventing the pump from being blocked due to long-term use. The waste liquid barrel 9 can be connected to the outlet of the degassing pump 4, so that when the water level control of the degassing tank 2 and / or the buffer tank 3 is out of control, the overflowing pure water can directly flow into the waste liquid barrel 9, preventing the pure water from overflowing into the interior of the instrument, thereby preventing irreversible effects. The waste liquid barrel 9 and the degassing pump 4 can be provided with an exhaust port connected to the atmosphere, thereby further improving the safety of use.

[0050] The main working principle of the liquid path system of the homogeneous luminescent immunoassay analyzer described in the utility model is:

[0051] 1. Pure water enters the degassing tank 2 for degassing treatment: the first solenoid valve 11, the third solenoid valve 22, and the degassing pump 4 are controlled to open, and the degassing tank 2 forms a negative pressure under the action of the degassing pump 4, so that the pure water in the liquid storage barrel 1 is sucked into the degassing tank 2 through the first solenoid valve 11; when the water level in the degassing tank 2 reaches the upper float position of the double float sensor 24, the first solenoid valve 11 is controlled to close, and then the heating module 23 is controlled to start working so as to heat the pure water in the degassing tank 2 to a preset temperature. When the negative pressure in the degassing tank 2 reaches the preset value, the third solenoid valve 22 and the degassing pump 4 are controlled to close; the pure water is left in the degassing tank 2 for a period of time, and the gas dissolved in the pure water automatically overflows, thereby completing the degassing treatment. When the water level of the pure water in the degassing tank 2 drops to the lower float position of the double float sensor 24, the above operation is repeated.

[0052] 2. Pure water is put into buffer tank 3: the second solenoid valve 21, the fourth solenoid valve 31 and the degassing pump 4 are controlled to open. Under the action of the degassing pump 4, negative pressure is formed in the degassing tank 2. The pure water in the degassing tank 2 is sucked into the buffer tank 3 through the second solenoid valve 21. When the bubble sensor 32 senses that the buffer tank 3 is full of pure water, the second solenoid valve 21, the fourth solenoid valve 31 and the degassing pump 4 are controlled to close.

[0053] 3. Clean the inner wall of the TIP head fixing column 6: discard the TIP head 61, then transfer the TIP head fixing column 6 to the water receiving tank 91, open the fifth solenoid valve 64, and transport the high-pressure water in the energy storage tank 51 to the TIP head fixing column 6 for cleaning. The cleaning waste liquid is received by the water receiving tank 91 and flows into the waste liquid barrel 9.

[0054] 4. Cleaning the reagent adding needle 7: transfer the reagent adding needle 7 to the cleaning tank 8, open the sixth solenoid valve 73, and transport the high-pressure water in the energy storage tank 51 to the reagent adding needle 7 to clean the inner wall of the reagent adding needle 7; then open the seventh solenoid valve 81, and transport the high-pressure water in the energy storage tank 51 to the cleaning tank 8 to clean the outer wall of the reagent adding needle 7; the cleaning waste liquid is received by the cleaning tank 8 and flows into the waste liquid barrel 9.

[0055] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A liquid path system of a homogeneous luminescent immunoassay analyzer, characterized in that: It comprises a liquid storage barrel (1), a degassing tank (2), a buffer tank (3) and a liquid transfer module; The water outlet of the liquid storage barrel (1) is connected to the water inlet of the degassing tank (2) via a first solenoid valve (11); The water outlet of the degassing tank (2) is connected to the water inlet of the buffer tank (3) via a second solenoid valve (21); The water outlet of the buffer tank (3) is connected to the liquid transfer module via a pressurizing module; The exhaust port of the degassing tank (2) is connected to the degassing pump (4) via a third solenoid valve (22), and the exhaust port of the buffer tank (3) is connected to the degassing pump (4) via a fourth solenoid valve (31).

2. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 1, characterized in that: The degassing tank (2) is provided with a heating module (23) and a double float sensor (24), and the degassing tank (2) is installed with a negative pressure sensor (25).

3. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 2, characterized in that: The volume between the upper float of the double float sensor (24) in the degassing tank (2) and the top of the degassing tank (2), and the volume between the upper float and the lower float of the double float sensor (24) are both greater than the volume of the buffer tank (3).

4. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 1, characterized in that: The buffer tank (3) is equipped with a bubble sensor (32).

5. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 1, characterized in that: The third solenoid valve (22) and the fourth solenoid valve (31) are both three-way valves, and the exhaust ends of the three-way valves are connected to the atmosphere.

6. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 1, characterized in that: The pressurizing module comprises a pressurizing pump (5) and an energy storage tank (51); the pressurizing pump (5) is connected between the water outlet of the buffer tank (3) and the water inlet of the energy storage tank (51); the water outlet of the energy storage tank (51) is connected to the liquid transfer module; and a pressure sensor (511) is provided on the water outlet of the energy storage tank (51).

7. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 6, characterized in that: The liquid transfer module comprises a sample adding component, a reagent adding component, a cleaning component and a waste liquid recovery component, wherein the sample adding component, the reagent adding component and the cleaning component are respectively connected to the water outlet of the energy storage tank (51); the waste liquid recovery component comprises a water receiving trough (91) and a waste liquid barrel (9), wherein the water receiving trough (91) and the cleaning component are respectively connected to the waste liquid barrel (9).

8. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 7, characterized in that: The sample adding component comprises a fifth solenoid valve (64), a first plunger pump (63) and a TIP head fixing column (6) which are connected in sequence; the TIP head fixing column (6) is detachably connected to a TIP head (61); the first plunger pump (63) is connected to a needle blocking sensor (62); and the fifth solenoid valve (64) is connected to a water outlet of the energy storage tank (51).

9. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 7, characterized in that: The reagent adding assembly comprises a sixth solenoid valve (73), a second plunger pump (72) and a reagent adding needle (7) which are connected in sequence, and the second plunger pump (72) is connected to an air suction sensor (71); the sixth solenoid valve (73) is connected to the water outlet of the energy storage tank (51).

10. The liquid path system of the homogeneous luminescent immunoassay analyzer according to claim 7, characterized in that: The cleaning component comprises a seventh solenoid valve (81) and a cleaning tank (8); the cleaning tank (8) is connected to the water outlet of the energy storage tank (51) via the seventh solenoid valve (81); and the water outlet of the cleaning tank (8) is connected to the waste liquid barrel (9).

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