Constant volume mechanism for digestion tank

Abstract

The utility model discloses a constant volume mechanism for a digestion tank, which comprises a shell, a circuit pipeline is arranged in the shell, a signal transmission line is arranged in the circuit pipeline, a temperature sensor is arranged at the end part of the shell, the temperature sensor is electrically connected with one end of the signal transmission line, and the other end of the signal transmission line is electrically connected with an external display module. The device has the beneficial effects that the shell is placed in the digestion tank, so that the temperature sensor intrudes into a solution in the digestion tank, the temperature sensor detects the temperature of the solution in real time and feeds back a temperature signal to the display module for displaying when vacuum acid driving is carried out, and the volume of the solution in the digestion tank begins to decrease in the acid driving process; and when the temperature sensor is separated from the liquid level, the target constant volume is reached, and acid driving is stopped, so that manual checking is avoided, and the safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical analysis, in particular to a volume-fixing mechanism for a digestion tank. Background Art

[0002] In experiments and tests in biology, chemistry, and medicine, it's often necessary to digest samples and then remove the acid. Existing acid removers have long digestion times and high set temperatures. Furthermore, during the removal process, it's impossible to determine the remaining volume in the digestion tank. The tank must be removed manually and visually inspected for remaining volume, a practice that's both unsafe and inconvenient. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a volume-fixing mechanism for a digestion tank.

[0004] The purpose of the utility model is achieved through the following technical solutions: a constant volume mechanism for a digestion tank, comprising a shell, a line pipeline is opened in the shell, a signal transmission line is arranged in the line pipeline, a temperature sensor is arranged at the end of the shell, the temperature sensor is electrically connected to one end of the signal transmission line, and the other end of the signal transmission line is electrically connected to an external display module.

[0005] Preferably, a step is provided at the upper end of the shell, a cover plate is provided on the step, a threaded hole is provided on the cover plate, and a locking screw is provided in the threaded hole.

[0006] Preferably, an air hole is provided on the upper portion of the shell, and the air hole is communicated with the interior of the digestion tank.

[0007] The utility model has the following advantages: the utility model places the shell in the digestion tank so that the temperature sensor penetrates into the solution inside the digestion tank. When vacuum acid driving is performed, the temperature sensor detects the solution temperature in real time and feeds back the temperature signal to the display module for display. During the acid driving process, the volume of the solution inside the digestion tank begins to decrease, so that the penetration depth of the temperature sensor becomes smaller. When the temperature sensor is out of the liquid surface, it means that the target constant volume has been reached and the acid driving is stopped, thereby avoiding manual inspection and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the positional relationship between the constant volume mechanism and the digestion tank;

[0009] Figure 2 It is a structural diagram of the volume-fixing mechanism;

[0010] Figure 3 Schematic diagram of the structure of the constant volume mechanism AA section

[0011] In the figure, 1 - housing, 2 - signal transmission line, 3 - air hole, 4 - cover plate, 5 - locking screw, 6 - circuit pipeline, 7 - temperature sensor, 9 - threaded hole, 10 - digestion tank, 11 - heating graphite, 12 - box body. Detailed implementation manners

[0012] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0014] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0015] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arrangement", "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] In this embodiment, as Figure 2 and Figure 3 shown, a constant volume mechanism for a digestion tank includes a housing 1. A circuit pipeline 6 is provided inside the housing 1, and a signal transmission line 2 is arranged inside the circuit pipeline 6. A temperature sensor 7 is provided at the end of the housing 1. The temperature sensor 7 is electrically connected to one end of the signal transmission line 2, and the other end of the signal transmission line 2 is electrically connected to an external display module. Further, a step is provided at the upper end of the housing 1, a cover plate 4 is arranged on the step, a threaded hole 9 is provided on the cover plate 4, and a locking screw 5 is arranged inside the threaded hole 9. By placing the housing 1 inside the digestion tank 10, the temperature sensor 7 is immersed in the internal solution of the digestion tank 10. During vacuum acid expulsion, the temperature sensor 7 detects the solution temperature in real time and feeds back the temperature signal to the display module for display. During the acid expulsion process, the volume of the internal solution in the digestion tank 10 starts to decrease, causing the immersion depth of the temperature sensor 7 to become smaller. When the temperature sensor 7 disengages from the liquid surface, specifically, here it is judged whether the temperature sensor 7 disengages from the liquid surface according to the temperature change. When the temperature detected by the temperature sensor 7 suddenly becomes lower, it indicates that the temperature sensor 7 has disengaged from the liquid surface, that is, it means that the target constant volume is reached, and the acid expulsion is stopped, thus avoiding manual inspection and ensuring safety.

[0019] Furthermore, air holes 3 are provided in the upper part of the housing 1. The air holes 3 are in communication with the inside of the digestion tank 10. Specifically, an external vacuum pump is connected to the air holes 3 through a pipeline, so as to facilitate pumping out the air inside the digestion tank 10 to form a vacuum environment.

[0020] The working process of the present utility model is as follows: As Figure 1As shown, the user first places several digestion tanks 10 in the box body 12. A heating graphite 11 is provided on the box body 12, and a constant volume mechanism is placed in the digestion tank 10, so that the temperature sensor 7 penetrates into the internal solution of the digestion tank 10. The air inside the digestion tank 10 is pumped away by a vacuum pump to form a vacuum environment. At the same time, the heating graphite 11 heats the solution in the digestion tank 10 by means of electric heating for acid expulsion treatment. When performing vacuum acid expulsion, the temperature sensor 7 detects the solution temperature in real time and feeds the temperature signal back to the display module for display. When the real-time temperature displayed by the display module suddenly becomes lower, it means that the temperature sensor 7 has left the liquid surface, that is, it indicates that the target constant volume is reached, and the acid expulsion is stopped, thus avoiding manual inspection and ensuring safety. In this embodiment, the digestion tank 10, the box body 12 and the heating graphite 11 are all existing products and can be obtained through commercial purchase, and will not be elaborated here.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A volume-fixing mechanism for a digestion tank, characterized in that: The invention comprises a shell (1), wherein a circuit pipe (6) is provided in the shell (1), a signal transmission line (2) is provided in the circuit pipe (6), a temperature sensor (7) is provided at the end of the shell (1), the temperature sensor (7) is electrically connected to one end of the signal transmission line (2), and the other end of the signal transmission line (2) is electrically connected to an external display module.

2. The volume-fixing mechanism for a digestion tank according to claim 1, characterized in that: The upper end of the housing (1) is provided with a step, a cover plate (4) is provided on the step, a threaded hole (9) is provided on the cover plate (4), and a locking screw (5) is provided in the threaded hole (9).

3. The volume-fixing mechanism for a digestion tank according to claim 2, characterized in that: An air hole (3) is provided on the upper portion of the shell (1), and the air hole (3) is communicated with the interior of the digestion tank (10).

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