Liquid preheating module and chemiluminescence immunoassay analyzer

Abstract

The invention relates to the technical field of in-vitro diagnosis automation equipment, in particular to a liquid preheating module and a chemiluminescence immunoassay analyzer. The liquid preheating module comprises a cleaning pipeline heating plate, and a cleaning liquid pipeline is wound on the cleaning pipeline heating plate; the heating device is connected with the cleaning pipeline heating plate in an attached mode and used for heating the cleaning pipeline heating plate so as to heat the cleaning liquid pipeline; the cleaning pipeline heating plate and the heating device are arranged in the heat preservation cavity. By means of the structure, the size of the preheating module can be effectively reduced, the pipeline is heated in a concentrated mode in a small space, and the heating efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of in vitro diagnostic automation equipment, and in particular to a liquid preheating module and a chemiluminescent immunoassay analyzer. Background Art

[0002] The chemiluminescent immunoassay analyzer is a medical testing instrument that performs immunoassay on the human body by testing the patient's serum. In the fully automatic chemiluminescent immunoassay analyzer, the cleaning fluid is generally used to clean the magnetic beads in the reaction cup. In order to maintain the stability of the environment in each reaction cup during cleaning and avoid result deviations caused by temperature changes, a device that can stably heat the cleaning fluid is required. This requires a liquid preheating module to heat the cleaning fluid.

[0003] In the prior art, for example, a heating device for a cleaning system disclosed in a patent application with publication number CN106199026B. In the prior art, the cleaning disk is heated and the temperature of the cleaning disk is controlled. Then, the rotation of the cleaning disk is controlled by a motor drive, etc., to achieve three cleanings of the reaction cup. The existing heating device is large in size and occupies a large space. In addition, the heating efficiency of the heating device is low, and the internal pipeline is too long, resulting in large resistance of the pipeline system and energy waste. In order to solve the above problems, those skilled in the art need a new preheating module. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is how to solve the problem that when cleaning the reaction cup in the chemiluminescent immunoassay analyzer of the prior art, the existing heating device is large in size, occupies a large space, and has low heating efficiency. To this end, the present invention provides a liquid preheating module, comprising:

[0005] A cleaning pipeline heating plate, wherein a cleaning liquid pipeline is wound around the cleaning pipeline heating plate;

[0006] A heating device is attached to the cleaning pipeline heating plate and is used to heat the cleaning pipeline heating plate to heat the cleaning liquid pipeline;

[0007] A heat preservation chamber, wherein the cleaning pipeline heating plate and the heating device are arranged in the heat preservation chamber.

[0008] Optional, liquid preheating module, also includes:

[0009] A substrate pipeline heating plate is provided, on which a substrate pipeline is wound and which is arranged in the heat preservation cavity; and the heating device is arranged between the cleaning pipeline heating plate and the substrate pipeline heating plate.

[0010] Optionally, a receiving groove matching the shape of the heating device is provided on a side of the cleaning pipeline heating plate and / or the substrate pipeline heating plate facing the heating device.

[0011] Optionally, the accommodating grooves respectively arranged on the cleaning pipeline heating plate and the substrate pipeline heating plate constitute a cavity for accommodating the heating device.

[0012] Optionally, the cleaning pipeline heating plate is further provided with a first rib plate for the cleaning liquid pipeline to wind around; a limiting member for limiting and fixing the cleaning liquid pipeline is also provided in the radial direction of the first rib plate; and / or,

[0013] The substrate pipeline heating plate is also provided with a second rib plate for the substrate pipeline to wind around; and a limiting member for limiting and fixing the substrate pipeline is also provided in the radial direction of the second rib plate.

[0014] Optionally, there are four first ribs on the cleaning pipeline heating plate, and each of the first ribs extends in the width direction of the cleaning pipeline heating plate; there are two second ribs on the substrate pipeline heating plate, and each of the second ribs extends in the length direction of the substrate pipeline heating plate.

[0015] Optional, liquid preheating module, also includes:

[0016] a temperature sensor for measuring the heating temperature in the heat preservation chamber; and / or,

[0017] A temperature protection switch is connected to the temperature sensor to control the on / off action of the heating device. If the temperature detected by the temperature sensor is higher than the set temperature, the heating device stops working; if the temperature detected by the temperature sensor is lower than the set temperature, the heating device starts working; and / or,

[0018] The heating device is a thin film structure; the cleaning pipeline heating plate, the substrate pipeline heating plate and the heating device are parallel to each other and closely connected.

[0019] Optionally, the heat-insulating chamber comprises: a heat-insulating side plate and a heat-insulating frame; the heat-insulating side plate and / or the heat-insulating frame are made of heat-insulating cotton; and / or,

[0020] The insulation chamber includes: an insulation base, which is arranged at the bottom of the cleaning pipeline heating plate, the heating device and the substrate pipeline heating plate, and is used to fix the cleaning pipeline heating plate, the heating device and the substrate pipeline heating plate, and isolate the temperature of other equipment in the analyzer.

[0021] Optionally, the temperature protection switch and the temperature sensor are connected to the heating device via a signal line;

[0022] The heat preservation cavity and / or the heat insulation base is provided with a through hole for the signal line to pass through.

[0023] Optionally, the heating device comprises: a heating film with a thin film structure, and / or a heating rod with a columnar structure, and / or a heating block with a block structure; and / or,

[0024] The liquid preheating module is powered by a 24V power supply to reduce the risk of electric shock;

[0025] The detection data of the temperature sensor is sent to the controller, and the controller controls the operation of the heating device through a PID algorithm to keep the liquid preheating module near the set temperature; and / or,

[0026] The cleaning pipeline heating plate and the substrate pipeline heating plate are respectively provided with connecting holes, and the pins pass through the connecting holes to fix the heating device between the cleaning pipeline heating plate and the substrate pipeline heating plate; and / or,

[0027] The temperature sensor and the temperature protection switch are arranged in the through hole.

[0028] A chemiluminescent immunoassay analyzer comprises: the above-mentioned liquid preheating module.

[0029] The technical solution of the present invention has the following advantages:

[0030] 1. The liquid preheating module provided by the present invention comprises:

[0031] A cleaning pipeline heating plate, wherein a cleaning liquid pipeline is wound around the cleaning pipeline heating plate;

[0032] A heating device is attached to the cleaning pipeline heating plate and is used to heat the cleaning pipeline heating plate to heat the cleaning liquid pipeline;

[0033] A heat preservation chamber, wherein the cleaning pipeline heating plate and the heating device are arranged in the heat preservation chamber.

[0034] In the present invention, the cleaning pipeline heating plate and the heating device are arranged in the same heat preservation chamber, so that the cleaning pipeline heating plate and the heating device are closely connected. Afterwards, the cleaning liquid pipeline is wound around the cleaning pipeline heating plate to ensure the heat conduction efficiency. The above structure allows the heating device to directly heat the cleaning pipeline through the cleaning pipeline heating plate, thereby improving the heating efficiency of the liquid preheating module, enhancing the heating performance, and reducing the overall energy consumption of the equipment. In addition, the pipeline length of the liquid preheating module is reduced, the equipment size is reduced, and the equipment installation performance is improved while reducing the system resistance.

[0035] 2. The liquid preheating module provided by the present invention further includes:

[0036] A substrate pipeline heating plate, on which a substrate pipeline is wound, is arranged in the heat preservation cavity; the heating device is arranged between the cleaning pipeline heating plate and the substrate pipeline heating plate;

[0037] The heating device is a thin film structure; the cleaning pipeline heating plate, the substrate pipeline heating plate and the heating device are parallel to each other and closely connected.

[0038] In the present invention, a substrate pipeline heating plate is also provided in the above-mentioned heat preservation chamber. By setting the heating device as a thin film structure and installing it between the cleaning pipeline heating plate and the substrate pipeline heating plate, the cleaning pipeline heating plate is heated by one side surface of the heating device with the thin film structure, and the substrate pipeline heating plate is heated by the other side surface of the heating device with the thin film structure. The above-mentioned structure can further reduce the size of the equipment, prevent heat loss and waste, and improve the heating efficiency of the liquid preheating module. At the same time, it can also achieve synchronous heating of the cleaning pipeline heating plate and the substrate pipeline heating plate.

[0039] 3. In the liquid preheating module provided by the present invention, a receiving groove matching the shape of the heating device is provided on the side of the cleaning pipeline heating plate and / or the substrate pipeline heating plate facing the heating device.

[0040] In the present invention, by providing a receiving groove on one or both of the cleaning pipeline heating plate and the substrate pipeline heating plate, the heating device with a thin film structure can be more closely attached to the cleaning pipeline heating plate and the substrate pipeline heating plate, thereby ensuring heat utilization efficiency.

[0041] 4. In the liquid preheating module provided by the present invention, the cleaning pipeline heating plate is further provided with a first rib plate for the cleaning liquid pipeline to wind around; a stopper for limiting and fixing the cleaning liquid pipeline is further provided in the radial direction of the first rib plate. The substrate pipeline heating plate is further provided with a second rib plate for the substrate pipeline to wind around; a stopper for limiting and fixing the substrate pipeline is further provided in the radial direction of the second rib plate.

[0042] In the present invention, by winding the cleaning liquid pipeline around the first rib of the cleaning pipeline heating plate; or winding the substrate pipeline around the second rib of the substrate pipeline heating plate, the above arrangement can effectively make the pipeline and the heating plate contact more evenly, thereby improving the heating effect of the heating plate.

[0043] 5. The liquid preheating module provided by the present invention further includes: a temperature sensor for measuring the heating temperature in the insulation chamber; and / or a temperature protection switch, which is communicatively connected to the temperature sensor to control the on and off action of the heating device.

[0044] In the present invention, when the temperature detected by the temperature sensor is higher than the set temperature, the heating device stops working; when the temperature detected by the temperature sensor is lower than the set temperature, the heating device starts working. The temperature sensor can effectively ensure that the heating device is in a normal working range.

[0045] 6. The liquid preheating module provided by the present invention, the heat preservation cavity comprises: heat insulation side plates and a heat insulation frame; the heat insulation side plates and the heat insulation frame can be set to heat insulation cotton material as needed, thereby effectively improving the heat preservation effect of the heat preservation cavity.

[0046] 7. The liquid preheating module provided by the present invention, the insulation chamber includes: an insulating base, the insulating base is arranged at the bottom of the cleaning pipeline heating plate, the heating device and the substrate pipeline heating plate, and is used to fix the cleaning pipeline heating plate, the heating device and the substrate pipeline heating plate, and isolate the temperature of other equipment in the analyzer.

[0047] In the present invention, the heat-insulating base can fix the cleaning pipeline heating plate, the heating device and the substrate pipeline heating plate in the heat-insulating chamber while isolating the heat exchange between the outside and the heat-insulating chamber as much as possible.

[0048] 8. The chemiluminescent immunoassay analyzer provided by the present invention comprises: a liquid preheating module. Therefore, it has all the advantages of the liquid preheating module. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A schematic diagram of the three-dimensional structure of the cleaning pipeline heating plate provided by the present invention;

[0051] Figure 2 A schematic diagram of the three-dimensional structure of the substrate pipeline heating plate provided by the present invention;

[0052] Figure 3 A schematic diagram of the structure of a heating device provided by the present invention connected with a temperature sensor and a temperature protection switch;

[0053] Figure 4 A schematic diagram of the structure of the temperature sensor provided by the present invention;

[0054] Figure 5 A schematic diagram of the structure of a temperature protection switch provided by the present invention;

[0055] Figure 6 A schematic diagram of the structure of the heat-insulating base provided by the present invention;

[0056] Figure 7 This is a schematic diagram of the assembly structure of the liquid preheating module provided by the present invention.

[0057] Description of reference numerals:

[0058] 1-cleaning pipeline heating plate; 2-heating device; 3-insulation chamber; 4-substrate pipeline heating plate; 5-accommodating tank; 6-temperature sensor; 7-temperature protection switch; 8-insulating side plate; 9-insulating frame; 10-insulating base; 11-signal line; 12-first rib; 13-limiting member; 14-second rib; 15-through hole. DETAILED DESCRIPTION

[0059] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] Example 1

[0062] See also Figure 7 ,as well as Figure 1 and Figure 2 , Figure 7 A schematic diagram of the assembly structure of the liquid preheating module in an embodiment of the present invention is shown. Figure 1 A schematic diagram of the three-dimensional structure of the cleaning pipeline heating plate in an embodiment of the present invention is shown. Figure 2 A schematic diagram of the three-dimensional structure of a substrate pipeline heating plate in an embodiment of the present invention is shown.

[0063] A liquid preheating module provided in this embodiment includes:

[0064] A cleaning pipeline heating plate 1, on which a cleaning liquid pipeline is wound;

[0065] The heating device 2 is connected to the cleaning pipeline heating plate 1 and is used to heat the cleaning pipeline heating plate 1 to heat the cleaning liquid pipeline. The liquid preheating module uses a 24V voltage power supply to power the heating device 2 to reduce the risk of electric shock;

[0066] The heat preservation chamber 3 , the cleaning pipeline heating plate 1 and the heating device 2 are arranged in the heat preservation chamber 3 .

[0067] The substrate pipeline heating plate 4 is wound with the substrate pipeline and is arranged in the heat preservation chamber 3; the heating device 2 is arranged between the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4; the heating device 2 is a thin film structure; the cleaning pipeline heating plate 1, the substrate pipeline heating plate 4 and the heating device 2 are parallel to each other and are closely connected. In addition, the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 are respectively provided with connecting holes, and the pin passes through the connecting holes to fix the heating device 2 between the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4.

[0068] In this embodiment, in order to make the heating device 2 fit more closely with the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 to ensure the heat utilization efficiency, the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 are respectively provided with a receiving groove 5 that matches the shape of the heating device 2 on one side of the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 facing the heating device 2. The receiving grooves 5 respectively provided on the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 constitute a cavity for accommodating the heating device 2.

[0069] Also, see Figures 3 to 5 , Figure 3 A schematic structural diagram of a heating device connected with a temperature sensor and a temperature protection switch in an embodiment of the present invention is shown. Figure 4 A schematic diagram of the structure of a temperature sensor in an embodiment of the present invention is shown. Figure 5 The schematic diagram of the temperature protection switch structure in the embodiment of the present invention is shown. The liquid preheating module also includes:

[0070] A temperature sensor 6, used to measure the heating temperature in the heat preservation chamber 3;

[0071] The temperature protection switch 7 is connected to the temperature sensor 6 to control the on and off of the heating device 2. When the temperature detected by the temperature sensor 6 is higher than the set temperature, the heating device 2 stops working; when the temperature detected by the temperature sensor 6 is lower than the set temperature, the heating device 2 starts working. The detection data of the temperature sensor 6 is sent to the controller, which controls the operation of the heating device 2 through the PID algorithm to keep the liquid preheating module near the set temperature.

[0072] The temperature protection switch 7 and the temperature sensor 6 are connected to the heating device 2 via a signal line 11 ; the heat preservation cavity 3 and the heat insulation base 10 are provided with a through hole 15 for the signal line 11 to pass through.

[0073] In this embodiment, in order to effectively improve the heat preservation effect of the heat preservation chamber 3. Figure 6 and Figure 7 The heat-insulating chamber 3 includes: a heat-insulating side plate 8, a heat-insulating frame 9 and a heat-insulating base 10. The heat-insulating side plate 8 and the heat-insulating frame 9 are made of heat-insulating cotton; the heat-insulating chamber 3 includes: a heat-insulating base 10, which is arranged at the bottom of the cleaning pipeline heating plate 1, the heating device 2 and the substrate pipeline heating plate 4, and is used to fix the cleaning pipeline heating plate 1, the heating device 2 and the substrate pipeline heating plate 4, and isolate the temperature of other equipment in the analyzer.

[0074] In this embodiment, the contact between the pipeline and the heating plate is made more uniform, thereby improving the heating effect of the heating plate. Figure 1 and Figure 2 As shown, the cleaning pipeline heating plate 1 is also provided with a first rib 12 for the cleaning liquid pipeline to wind around; a limiting member 13 for limiting and fixing the cleaning liquid pipeline is also provided in the radial direction of the first rib 12. There are four first ribs 12 on the cleaning pipeline heating plate 1, and each of the first ribs 12 is extended in the width direction of the cleaning pipeline heating plate 1.

[0075] In addition, the substrate pipeline heating plate 4 is also provided with a second rib 14 for the substrate pipeline to wind around; a stopper 13 for limiting and fixing the substrate pipeline is also provided in the radial direction of the second rib 14. There are two second ribs 14 on the substrate pipeline heating plate 4, and each second rib 14 is extended in the length direction of the substrate pipeline heating plate 4.

[0076] Of course, this embodiment does not specifically limit the composition structure of the liquid preheating module. In other embodiments, the liquid preheating module does not include the substrate pipeline heating plate 4 mentioned above, and the heating device 2 only heats the cleaning pipeline heating plate 1.

[0077] Of course, this embodiment does not specifically limit the specific structure of the heating device 2. In other embodiments, the heating device 2 may also be a heating rod with a columnar structure, or the heating device 2 may also be a heating block with a block structure. In addition, the heating device 2 may also be configured as a semiconductor heating component as required.

[0078] Of course, this embodiment does not specifically limit whether the above-mentioned accommodating groove 5 is provided on the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4. In other embodiments, the above-mentioned accommodating groove 5 can be provided on one of the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 as needed. Alternatively, the accommodating groove 5 is not provided on the above-mentioned cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4.

[0079] Of course, this embodiment does not specifically limit whether the liquid preheating module includes the temperature sensor 6 and the temperature protection switch 7. Also, the setting positions of the temperature sensor 6 and the temperature protection switch 7 are not specifically limited. In other embodiments, the liquid preheating module is provided with the temperature sensor 6, but not provided with the temperature protection switch 7. The temperature of the liquid preheating module is detected by the temperature sensor 6, and the temperature of the heating device 2 is manually controlled. In addition, the temperature sensor 6 and the temperature protection switch 7 can also be provided on the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 as required.

[0080] Of course, this embodiment does not specifically limit the specific structure of the heat preservation chamber 3. In other embodiments, the heat insulation side plate 8 and the heat insulation frame 9 can also be made of heat insulation materials other than heat insulation cotton. In addition, it can be selected whether to set the above-mentioned heat insulation base 10 according to needs.

[0081] Of course, this embodiment does not specifically limit the power supply method of the liquid preheating module. In other embodiments, the liquid preheating module uses a 220V voltage power supply to power the heating device 2.

[0082] Of course, this embodiment does not specifically limit the number and arrangement direction of the ribs on the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4. In other embodiments, the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 can be provided with different numbers of ribs as needed and arranged in the width or length direction of the heating plate as needed.

[0083] Example 2

[0084] See also Figure 7 ,as well as Figure 1 and Figure 2 , Figure 7 A schematic diagram of the assembly structure of a liquid preheating module in an embodiment of the present invention is shown. Figure 1 A schematic diagram of the three-dimensional structure of the cleaning pipeline heating plate in an embodiment of the present invention is shown. Figure 2 A schematic diagram of the three-dimensional structure of a substrate pipeline heating plate in an embodiment of the present invention is shown.

[0085] A chemiluminescent immunoassay analyzer provided in this embodiment includes: a liquid preheating module. The liquid preheating module includes:

[0086] A cleaning pipeline heating plate 1, on which a cleaning liquid pipeline is wound;

[0087] The heating device 2 is connected to the cleaning pipeline heating plate 1 and is used to heat the cleaning pipeline heating plate 1 to heat the cleaning liquid pipeline. The liquid preheating module uses a 24V voltage power supply to power the heating device 2 to reduce the risk of electric shock;

[0088] The heat preservation chamber 3 , the cleaning pipeline heating plate 1 and the heating device 2 are arranged in the heat preservation chamber 3 .

[0089] The substrate pipeline heating plate 4 is wound with the substrate pipeline and is arranged in the heat preservation chamber 3; the heating device 2 is arranged between the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4; the heating device 2 is a thin film structure; the cleaning pipeline heating plate 1, the substrate pipeline heating plate 4 and the heating device 2 are parallel to each other and are closely connected. In addition, the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4 are respectively provided with connecting holes, and the pin passes through the connecting holes to fix the heating device 2 between the cleaning pipeline heating plate 1 and the substrate pipeline heating plate 4.

[0090] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A liquid preheating module, characterized in that: include: A cleaning pipeline heating plate (1), wherein a cleaning liquid pipeline is wound around the cleaning pipeline heating plate (1); A heating device (2) is attached to and connected to the cleaning pipeline heating plate (1) and is used to heat the cleaning pipeline heating plate (1) so as to heat the cleaning liquid pipeline; A heat preservation chamber (3), wherein the cleaning pipeline heating plate (1) and the heating device (2) are arranged in the heat preservation chamber (3).

2. The liquid preheating module according to claim 1, characterized in that: Also includes: A substrate pipeline heating plate (4) is provided with a substrate pipeline wound around the substrate pipeline heating plate (4) and is arranged in the heat preservation chamber (3); the heating device (2) is arranged between the cleaning pipeline heating plate (1) and the substrate pipeline heating plate (4).

3. The liquid preheating module according to claim 2, characterized in that: A receiving groove (5) matching the shape of the heating device (2) is provided on the side of the cleaning pipeline heating plate (1) and / or the substrate pipeline heating plate (4) facing the heating device (2).

4. The liquid preheating module according to claim 3, characterized in that: The accommodating grooves (5) respectively arranged on the cleaning pipeline heating plate (1) and the substrate pipeline heating plate (4) constitute a cavity for accommodating the heating device (2).

5. The liquid preheating module according to any one of claims 2 to 4, characterized in that: The cleaning pipeline heating plate (1) is also provided with a first rib (12) for the cleaning liquid pipeline to wind around; a limiting member (13) for limiting and fixing the cleaning liquid pipeline is also provided in the radial direction of the first rib (12); and / or, The substrate pipeline heating plate (4) is also provided with a second rib (14) for the substrate pipeline to wind around; and a limiting member (13) for limiting and fixing the substrate pipeline is also provided in the radial direction of the second rib (14).

6. The liquid preheating module according to claim 2, characterized in that: Also includes: a temperature sensor (6) for measuring the heating temperature in the heat preservation chamber (3); and / or, a temperature protection switch (7) which is in communication with the temperature sensor (6) to control the on and off operation of the heating device (2); and / or, The heating device (2) is a thin film structure; the cleaning pipeline heating plate (1), the substrate pipeline heating plate (4) and the heating device (2) are parallel to each other and are closely connected.

7. The liquid preheating module according to claim 6, characterized in that: The heat-insulating chamber (3) comprises: a heat-insulating side plate (8) and a heat-insulating frame (9); the heat-insulating side plate (8) and / or the heat-insulating frame (9) are made of heat-insulating cotton; and / or, The heat preservation chamber (3) comprises: an insulating base (10), which is arranged at the bottom of the cleaning pipeline heating plate (1), the heating device (2) and the substrate pipeline heating plate (4), and is used to fix the cleaning pipeline heating plate (1), the heating device (2) and the substrate pipeline heating plate (4), and to isolate the temperature of other equipment in the analyzer.

8. The liquid preheating module according to claim 7, characterized in that: The temperature protection switch (7) and the temperature sensor (6) are connected to the heating device (2) via a signal line (11); The heat preservation cavity (3) and / or the heat insulation base (10) are provided with a through hole (15) for the signal line (11) to pass through.

9. The liquid preheating module according to claim 2, characterized in that: The heating device (2) comprises: a heating film with a thin film structure, and / or a heating rod with a columnar structure, and / or a heating block with a block structure; and / or, The cleaning pipeline heating plate (1) and the substrate pipeline heating plate (4) are respectively provided with connection holes, and pins pass through the connection holes to fix the heating device (2) between the cleaning pipeline heating plate (1) and the substrate pipeline heating plate (4); and / or, The temperature protection switch (7) and the temperature sensor (6) are arranged in the through hole (15).

10. A chemiluminescent immunoassay analyzer, characterized in that: include: The liquid preheating module according to any one of claims 1 to 9.

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