A heating device for a magnetic separation system

Abstract

This utility model discloses a heating device for a magnetic separation system, including a pipeline heater. A heating element is provided at the bottom of the pipeline heater. Multiple injection pipelines are embedded in a spiral groove on the outer wall of the pipeline heater. An injection plate is also provided on the outside of the pipeline heater, and multiple injection needles are provided on the injection plate. The injection needles are connected to the outlet ends of the injection pipelines via outlet hoses. A heating cover plate is also fitted over the pipeline heater, with its bottom extending horizontally to the connection point between the outlet hose and the injection needles. This utility model can heat the cleaning fluid to the target temperature in a short time even at low ambient temperatures and reduce heat loss after injection, maintaining a constant temperature environment for the liquid and ensuring the effectiveness of subsequent tests.

Description

Technical Field

[0001] This utility model belongs to the technical field of magnetic separation systems, and in particular relates to a heating device for a magnetic separation system. Background Technology

[0002] The working principle of the magnetic separation system of the chemiluminescence immunoassay analyzer is to inject a cleaning solution and mix it thoroughly, then use a magnet to attract magnetic beads to remove unbound waste liquid impurities to achieve the purpose of cleaning and separation. However, the reaction between the sample and the reagent needs to be completed in a constant temperature environment. If the ambient temperature changes significantly after the sample is transferred from the reagent chamber to the magnetic separation chamber, it will affect the binding of the sample and the reagent, causing deviations in the detection results and poor reliability. Currently, magnetic separation systems mainly use a heating device to heat the cleaning solution before injecting it into the reaction vessel to provide a constant temperature environment for the sample reagents. However, the injected cleaning solution is greatly affected by the ambient temperature. At room temperature and above, the cleaning solution can provide a constant temperature environment after being heated to the target temperature and injected into the reaction vessel. However, at lower temperatures, heat is lost during the injection process from the heating device, and the temperature in the reaction vessel does not reach the set target temperature. Furthermore, during subsequent continuous injections, the liquid stays in the heating device for a shorter time, causing subsequent injections to fail to reach the target temperature, which affects the subsequent test results. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art by providing a heating device for a magnetic separation system. Even at low ambient temperatures, the cleaning fluid can be heated to the target temperature in a short time and its heat loss can be reduced after injection, thus maintaining a constant temperature environment for the liquid and ensuring the effectiveness of subsequent tests.

[0004] The objective of this utility model is achieved through the following technical solution: A heating device for a magnetic separation system includes a pipeline heater. A heating element is provided at the bottom of the pipeline heater. Multiple liquid injection pipelines are embedded in a spiral groove on the outer wall of the pipeline heater. A liquid injection plate is also provided on the outside of the pipeline heater. Multiple liquid injection needles are provided on the liquid injection plate. The liquid injection needles are connected to the outlet end of the liquid injection pipeline through an outlet hose. A heating cover plate is also fitted over the pipeline heater. The bottom of the heating cover plate extends horizontally to the connection point between the outlet hose and the liquid injection needle. In this embodiment, the cleaning fluid in the injection pipeline is heated by a pipeline heater. At the same time, the bottom of the heating cover plate extends horizontally to the connection between the outlet hose and the injection needle. This allows the heated cleaning fluid to be kept warm along the path from the injection pipeline to the outlet hose of the injection needle, reducing heat loss and maintaining a constant temperature environment for the liquid.

[0005] In one embodiment, the heating cover plate is in contact with the pipeline heater; This embodiment allows the pipeline heater to heat the injection pipeline while simultaneously heating the heating cover plate, enabling the heating cover plate to transfer heat to the other side of the injection pipeline, thus allowing the cleaning fluid in the injection pipeline to be heated to the target temperature in a short time.

[0006] In one embodiment, the heating cover plate is further covered with a heat insulation layer; This implementation method further reduces heat loss.

[0007] In one embodiment, both the heating cover and the pipeline heater are made of aluminum; This embodiment improves the heating effect of the pipeline heater on the heating cover plate.

[0008] In one embodiment, the injection plate has a Y-shaped structure, with one end being the injection inlet end and the two ends extending away from each other along the injection inlet end being the injection outlet ends. The injection outlet ends extend circumferentially along the outer wall of the pipeline heater, and the injection needle is disposed on the injection outlet end. In this embodiment, the Y-shaped injection plate connects the inlet and outlet ends of the injection pipeline, while also facilitating the installation of injection needles along the circumference of the outer wall of the pipeline heater. This reduces the length of the outlet hose between the injection needle and the injection pipeline, thereby reducing the time required for the cleaning fluid to be injected and further reducing its heat loss.

[0009] In one embodiment, a limiting plate is also provided on the liquid injection inlet end, and there are multiple independent pipe grooves between the limiting plate and the liquid injection inlet end, and an inlet hose connected to the inlet end of the liquid injection pipeline is provided in the pipe groove.

[0010] In one embodiment, a temperature sensor is provided at the top of the pipeline heater, a lower heat insulation plate is provided at the bottom of the pipeline heater, the heating element is disposed on the lower heat insulation plate, and a temperature switch electrically connected to the temperature sensor is embedded in the lower heat insulation plate.

[0011] In one embodiment, multiple slots are provided on both sides of the lower heat insulation plate, and the inlet end of the liquid injection pipeline passes through the slots and is connected to the inlet hose.

[0012] In one embodiment, the heating cover plate and the pipeline heater are fitted with a clearance.

[0013] In one embodiment, the heating element is in close contact with the bottom of the pipeline heater.

[0014] The beneficial effects of this utility model are as follows: (1) The cleaning fluid in the injection pipeline is heated by the pipeline heater. At the same time, the bottom of the heating cover plate extends horizontally to the connection between the outlet hose and the injection needle, so that the heated cleaning fluid can also be kept warm along the path from the injection pipeline to the outlet hose of the injection needle, reducing its heat loss and maintaining the constant temperature environment of the liquid. (2) The heating cover plate and the pipeline heater are in close contact with each other, so that the pipeline heater can heat the heating cover plate while heating the injection pipeline, so that the heating cover plate can transfer heat to the other side of the injection pipeline, so that the cleaning fluid in the injection pipeline can be heated to the target temperature in a short time. At the same time, both the heating cover plate and the pipeline heater are made of aluminum, which improves the heat transfer effect. (3) A Y-shaped liquid injection plate is set on one side of the pipeline heater, and multiple liquid injection needles are set at intervals along the outer wall of the pipeline heater to reduce the length of the outlet hose between the liquid injection needle and the liquid injection pipeline, that is, to reduce the time required for the cleaning liquid to be injected, and further reduce its heat loss. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 This shows a structural schematic diagram of the present invention from another direction; Figure 3 A cross-sectional structural diagram of this utility model is shown; Figure 4 A schematic diagram of the pipeline heater of this utility model is shown; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0016] Figure label: 1-Pipe heater, 2-Heating element, 3-Injection plate, 4-Injection needle, 5-Heating cover plate, 6-Insulation layer, 7-Injection inlet end, 8-Injection outlet end, 9-Limiting plate, 10-Pipe groove, 11-Temperature sensor, 12-Lower heat insulation plate, 13-Temperature switch, 14-Spiral groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] This invention provides a heating device for a magnetic separation system, such as... Figures 1 to 4As shown, it includes a pipeline heater 1, a heating element 2 is provided at the bottom of the pipeline heater 1, multiple liquid injection pipelines are embedded in the spiral groove 14 on the outer wall of the pipeline heater 1, a liquid injection plate 3 is also provided on the outside of the pipeline heater 1, multiple liquid injection needles 4 are provided on the liquid injection plate 3, and the liquid injection needles 4 are connected to the outlet end of the liquid injection pipeline through an outlet hose. A heating cover plate 5 is also provided on the outside of the pipeline heater 1, and the bottom of the heating cover plate 5 extends horizontally to the connection between the outlet hose and the liquid injection needles 4. In this embodiment, four injection lines are provided, and the corresponding injection plate 3 has four injection needles 4. Each injection needle 4 is connected to a corresponding injection line through an outlet hose. The injection line passes through the bottom of the line heater 1 and is embedded in its spiral groove 14 to heat the cleaning fluid in the injection line under the action of the line heater 1. The heated cleaning fluid flows out through the outlet hose to the injection needle 4 for subsequent testing. In this embodiment, the line heater 1 is insulated by a heating cover plate 5. At the same time, the bottom of the heating cover plate 5 extends horizontally to the connection between the outlet hose and the injection needle 4, so that the heated cleaning fluid can also be insulated along the path from the injection line to the outlet hose of the injection needle 4, reducing its heat loss, maintaining a constant temperature environment for the liquid, and ensuring the subsequent test results.

[0019] Furthermore, such as Figure 3 As shown, the heating cover plate 5 is also covered with a heat insulation layer 6, which further reduces the heat loss of the cleaning fluid in the outlet hose path and ensures the test results.

[0020] In one embodiment, such as Figure 3 As shown, the heating cover plate 5 and the pipeline heater 1 are fitted together with a gap, so that the pipeline heater 1 can heat the heating cover plate 5 while heating the injection pipeline, so that the heating cover plate 5 can transfer heat to the other side of the injection pipeline, so that the cleaning fluid in the injection pipeline can be heated to the target temperature in a short time. At the same time, both the heating cover plate 5 and the pipeline heater 1 are made of aluminum, which improves the heating effect of the pipeline heater 1 on the heating cover plate 5.

[0021] In one embodiment, such as Figure 1 and Figure 2 As shown, the injection plate 3 has a Y-shaped structure. One end is the injection inlet end 7, and the two ends extending away from each other along the injection inlet end 7 are the injection outlet ends 8. The injection outlet ends 8 extend circumferentially along the outer wall of the pipeline heater 1, and the injection needle 4 is set on the injection outlet end 8. It should be noted that the Y-shaped liquid injection plate 3 is used to connect the inlet and outlet ends of the liquid injection pipeline. At the same time, it is convenient to install the liquid injection needle 4 along the circumference of the outer wall of the pipeline heater 1, which reduces the length of the outlet hose between the liquid injection needle 4 and the liquid injection pipeline, thereby reducing the time required for the cleaning fluid to be injected and further reducing its heat loss. In one embodiment, the bottom of the heating cover plate 5 corresponds to the position of the injection needle 4 on the Y-shaped injection plate 3, and extends out multiple heat-insulating sections with the same number as the injection needle 4. Each heat-insulating section extends horizontally to the connection between the outlet hose and the injection needle 4, so that the heated cleaning fluid can be heat-insulated along the path from the injection pipeline to the outlet hose of the injection needle 4, reducing its heat loss, maintaining the constant temperature environment of the liquid, and ensuring the subsequent test results. In one embodiment, such as Figure 1 and Figure 2 As shown, the four injection needles 4 on the Y-shaped injection plate 3 are located on both sides of the heating cover plate 5. The heating cover plate 5 has two opposing heat insulation components at its bottom. The heat insulation components extend horizontally along the circumference of the heating cover plate 5. Each heat insulation component contains two outlet hoses connected to the injection needles 4. The two outlet hoses are located at both ends of the heat insulation component, that is, a continuous heat insulation component structure is set up, which can keep the heated cleaning liquid warm and also facilitate the extension processing on the heating cover plate 5.

[0022] Furthermore, a limiting plate 9 is also provided on the liquid injection inlet end 7. There are multiple independent pipe grooves 10 between the limiting plate 9 and the liquid injection inlet end 7. An inlet hose connected to the inlet end of the liquid injection pipeline is provided in the pipe groove 10. Multiple slots are also provided on both sides of the lower heat insulation plate 12. The inlet end of the liquid injection pipeline passes through the slot and is connected to the inlet hose. Specifically, such as Figure 1 As shown, a limiting plate 9 is provided on the liquid injection inlet end 7. The limiting plate 9 has four pipe grooves 10 for limiting the inlet hose. The inlet hose is connected to the inlet end of the liquid injection pipeline located in the grooves on both sides of the lower heat insulation plate 12 along the pipe grooves 10, so as to supply cleaning fluid into the pipeline heater 1 from bottom to top. At the same time, one end of the liquid injection pipeline passes through the grooves on both sides of the lower heat insulation cover, and the other end is connected to the liquid injection needle 4 through the outlet hose, so that the liquid injection pipeline can be completely fitted into the spiral groove 14 of the pipeline heater 1, so as to prevent it from loosening and affecting the heating effect.

[0023] In one embodiment, a temperature sensor 11 is provided at the top of the pipeline heater 1, and a lower heat insulation plate 12 is provided at the bottom of the pipeline heater 1. A heating element 2 is provided on the lower heat insulation plate 12, and the heating element 2 is in close contact with the bottom of the pipeline heater 1. A temperature switch 13 that is electrically connected to the temperature sensor 11 is embedded in the lower heat insulation plate 12. That is, the temperature sensor 11 is used to detect the target temperature of the pipeline heater 1 in real time and is electrically connected to the temperature switch 13 so as to turn off the heating element 2 when the temperature is too high, so as to prevent the device from being damaged by the excessive temperature. In one embodiment, the height of the pipeline heater 1 and the depth of its spiral groove 14 can be set according to actual conditions. Under certain conditions, a taller pipeline heater 1 can extend the winding length of the injection pipeline, increasing the time that the subsequently introduced cleaning fluid spends in the injection pipeline to reach the target temperature value. At the same time, increasing the power of the heating element 2 at the bottom of the pipeline heater 1 can solve the problem of the pipeline heater 1 becoming larger. As for the spiral groove 14, if the injection pipeline is made of thin-walled hard pipe material and the outer diameter of the injection pipeline is 3mm, the depth of the spiral groove 14 can be set to 3.6mm and the width to 3.2mm, so that the injection pipeline can be completely embedded in the spiral groove 14, ensuring that most of the area is in contact with the pipeline heater 1, so that the liquid is heated evenly.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A heating device for a magnetic separation system, characterized in that, The device includes a pipeline heater, with a heating element at its bottom. Multiple injection pipelines are embedded in a spiral groove on the outer wall of the pipeline heater. An injection plate is also provided on the outside of the pipeline heater, with multiple injection needles on the injection plate. The injection needles are connected to the outlet ends of the injection pipelines via outlet hoses. A heating cover plate is also fitted over the pipeline heater, with its bottom extending horizontally to the connection point between the outlet hose and the injection needles.

2. The heating device for a magnetic separation system according to claim 1, characterized in that, The heating cover plate is in contact with the pipeline heater.

3. The heating device for a magnetic separation system according to claim 1, characterized in that, The heating cover is also covered with an insulation layer.

4. The heating device for a magnetic separation system according to claim 1, characterized in that, Both the heating cover and the pipeline heater are made of aluminum.

5. The heating device for a magnetic separation system according to claim 1, characterized in that, The injection plate has a Y-shaped structure, with one end being the injection inlet and the two ends extending away from each other along the injection inlet being the injection outlets. The injection outlets extend circumferentially along the outer wall of the pipeline heater, and the injection needle is disposed on the injection outlet.

6. The heating device for a magnetic separation system according to claim 5, characterized in that, A limiting plate is also provided on the liquid injection inlet end, and there are multiple independent pipe grooves between the limiting plate and the liquid injection inlet end. An inlet hose connected to the inlet end of the liquid injection pipeline is provided in the pipe groove.

7. The heating device for a magnetic separation system according to claim 6, characterized in that, A temperature sensor is also provided at the top of the pipeline heater, and a lower heat insulation plate is provided at the bottom of the pipeline heater. The heating element is placed on the lower heat insulation plate, and a temperature switch electrically connected to the temperature sensor is embedded in the lower heat insulation plate.

8. The heating device for a magnetic separation system according to claim 7, characterized in that, The lower heat insulation plate is also provided with multiple slots on both sides, and the inlet end of the liquid injection pipeline passes through the slots and is connected to the inlet hose.

9. The heating device for a magnetic separation system according to claim 2, characterized in that, The heating cover plate and the pipeline heater are fitted with a clearance.

10. The heating device for a magnetic separation system according to claim 1, characterized in that, The heating element is in close contact with the bottom of the pipeline heater.

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