Digestion instrument
By using graphite heater and isolation design digester, the temperature unevenness and corrosion problems are solved, uniform heating and waste liquid collection are achieved, and digestion effect and equipment life are improved.
Patent Information
- Application Number
- CN202421506086.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The existing digester has problems of uneven temperature and digestion corrosion equipment, resulting in uneven digestion effect and shortened equipment life.
The heating body made of graphite is designed to ensure the uniformity of the temperature in the heating chamber through uniform heating and isolation design, and waste liquid is collected through the drainage hole and drainage tube to prevent corrosion.
It realizes uniform heating of test tubes, improves digestion effect, and effectively prevents waste liquid from corroding the equipment, simplifying the cleaning process.
Smart Images
Figure CN223166447U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of testing equipment technology, in particular to a digestion instrument. Background Art
[0002] The electric heating digester has multiple digestion holes. A common problem is that the temperature of each digestion hole is uneven, resulting in uneven digestion effect for each test tube. In addition, the digestion process requires the addition of digestion liquid, which is usually corrosive. For existing digesters, dripping digestion liquid will cause corrosion to the equipment, thereby affecting the normal use of the digester. Summary of the invention
[0003] The purpose of the utility model is to provide a digestion instrument, which adopts a heating body made of graphite, which can not only provide a balanced heating environment for the test tube, but also effectively prevent waste liquid corrosion, thereby solving the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a digester, comprising a digester body and a heating device, wherein an inner shell with an open top is provided in the digester body, and the heating device is provided in the inner shell; the heating device comprises a heating body made of graphite, and a plurality of heating cavities are provided in an array on the front of the heating body, and the heating cavities are columnar and open at the top; a drainage hole is provided through the bottom of the heating cavity, and a drip hole corresponding to the drainage hole is provided at the bottom of the inner shell; a waste liquid bin tray is provided at the lower part of the digester body, and the waste liquid bin tray is located below the inner shell.
[0005] In the above technical solution, the graphite material has good thermal conductivity. As a heating body, it can evenly distribute the heat generated by the heating rod to all parts of the heating body. Therefore, the heating chambers in various places can provide the same heating environment for the test tubes. In addition, the temperature of the inner wall of the heating chamber is balanced, ensuring stable surrounding heating of all parts of the test tubes entering the heating chamber, thereby improving the digestion effect; in addition, the heating body made of graphite has good corrosion resistance. For waste liquid that accidentally enters the heating chamber, it will enter the waste liquid bin through the drainage hole at the bottom of the heating chamber, so that the waste liquid can be centrally treated. And because the graphite material has strong hydrophobicity, the digester is also easy to clean.
[0006] As a preferred solution, an isolation gap is reserved between the outer periphery of the heater and the inner shell, and an isolation layer is provided in the isolation gap. The isolation layer isolates the heater, preventing the outer surface temperature from being too high when the device is operating, and also prevents the external temperature from affecting the heater temperature, thereby improving temperature control accuracy.
[0007] As a preferred solution, a panel is provided at the top of the heating body. The panel covers the top of the inner shell, and the panel is provided with test tube holes corresponding to the heating cavities one by one. The panel used can not only hide the internal structure of the inner shell, but also isolate the heating body to prevent the heating body from being damaged by knocking.
[0008] As a preferred solution, an inner mounting plate is installed below the panel by bolts. The edge of the inner mounting plate is a fitting portion bent downward. The fitting portion is installed on the inner side of the upper edge of the inner shell by bolts, and the middle part of the front of the inner mounting plate is an avoidance opening for avoiding the whole heating body. The mounting plate provided below the panel can not only support the upper panel, but also fix the heating body through the avoidance opening.
[0009] As a preferred solution, a downward-extending annular lower edge guard is provided at the lower part of each test tube hole, and a docking port is provided at the top opening of each heating cavity, and the lower edge guard is inserted into the corresponding docking port. The lower edge guard has a drainage function. Since it is inserted downward into the upper part of the heating cavity, the liquid flowing down along the test tube hole will directly enter the heating cavity and finally enter the waste liquid storage tray, which can effectively prevent the liquid from flowing along the gap between the panel and the heating body.
[0010] As a preferred solution, an upwardly convex flange is provided at the top edge of the panel to prevent the liquid on the panel from flowing down from the edge.
[0011] As a preferred solution, a drainage tube is installed in each drain hole. The lower end of the drainage tube passes through the water dripping hole at the bottom of the inner shell. Under the action of the drainage tube, the liquid entering the heating cavity will all enter the waste liquid storage tray along the drainage tube, thus avoiding the liquid flowing onto other components and causing corrosion of the equipment. Description of the Drawings
[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:
[0013] Figure 1 is a schematic diagram of the overall structure of the digestion instrument according to the embodiment provided by the present utility model;
[0014] Figure 2 is Figure 1 a schematic diagram of the partial split structure of the digestion instrument shown;
[0015] Figure 3 is Figure 2 a schematic diagram of the bottom structure of the inner shell in ;
[0016] Figure 4 is Figure 2 a schematic diagram of the structure of the heating body in ;
[0017] Figure 5 Schematic diagram of the installation structure of the drainage pipe on the back of the heating element
[0018] Figure 6 is Figure 2 Schematic diagram of the back structure of the middle panel
[0019] In the figure, the digestion instrument body 1, the waste liquid bin tray 2, the inner shell 3, the panel 4, the inner mounting plate 5, the avoidance opening 6, the heating element 7, the isolation layer 8, the convex edge 41, the test tube hole 42, the lower protection edge 43, the water dripping hole 31, the heating cavity 71, the docking port 72, the liquid discharge hole 73, the drainage pipe 74 Specific implementation mode
[0020] The following will be combined with the drawings and embodiments to detail the implementation mode of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly
[0021] Figure 1 Schematic diagram of the structure of the digestion instrument provided by the utility model, which includes the digestion instrument body 1. Combining Figure 2 It can be seen that a pull-out waste liquid bin tray 2 is arranged at the lower part of the digestion instrument body 1, and the waste liquid bin tray 2 is used to collect waste liquid and cleaning liquid. An inner shell 3 with an open top is arranged above the waste liquid bin tray 2. The inner shell 3 of the inner shell 3 is used to place the heating device. The upper edge of the inner shell 3 protrudes from the top surface of the digestion instrument body 1, and combining Figure 3 It can be seen that a plurality of water dripping holes 31 are arranged in an array at the bottom of the inner shell 3
[0022] Compared with the existing electrothermal digestion instrument, the main feature of this digestion instrument is that the heating device uses a new type of heating element 7 made of graphite, and its controllable heating temperature range is 0°C - 200°C. In Figure 2 It can be seen that two heating elements 7 are placed left and right inside the inner shell 3. The two heating elements 7 are arranged at intervals and have built-in independent electric heating components. Therefore, the temperatures of the two heating elements 7 can be independently controlled to meet the digestion requirements at different temperatures at the same time; in addition, an isolation layer 8 is arranged in the gap between the inner shell 3 and the heating element 7. Therefore, the isolation layer 8 has good heat insulation effect, which can not only prevent the outer shell of the digestion instrument body 1 from overheating, but also avoid the influence of the external temperature on the temperature of the heating element 7 and improve the temperature control accuracy. As Figure 4 shown, a number of heating cavities 71 are arranged in an array on the front surface of the heating element 7 in this embodiment. The heating cavities 71 are columnar and open at the top; in addition, a liquid discharge hole 73 (the liquid discharge hole 73 is directly opposite to the water dripping hole 31 at the bottom of the inner shell 3) is penetrated through the bottom of the heating cavity 71, and a drainage pipe 74 extending downward is installed in the liquid discharge hole 73. From Figure 3It can be seen that the lower end of the drainage tube 74 passes through the water dripping hole 31. Therefore, for the liquid entering the heating chamber 71, it will flow along the drainage tube 74 and all flow into the waste liquid storage tray 2 below.
[0023] In addition, since the top of the inner shell 3 is open, a panel 4 is arranged above the inner shell 3 to isolate the components inside the inner shell 3, and an inner mounting plate 5 is arranged below the panel 4. Regarding the inner mounting plate 5, its use must first not block the heating element 7 below. Therefore, two avoidance openings 6 facing the heating element 7 are arranged on the front surface of the inner mounting plate 5, and the upper part of the heating element 7 is inserted into the avoidance openings 6. In addition, bolt holes are arranged on the front surface of the inner mounting plate 5, a fitting part extending downward is arranged on the edge of the inner mounting plate 5, and bolt holes are also arranged on the fitting part. In the installed state, the fitting part is located inside the top of the inner shell 3 and is fixed by bolts.
[0024] Regarding the panel 4, bolt holes are also arranged on the front surface of the panel 4, and it is fixedly installed above the inner mounting plate 5 by bolts. Therefore, the inner mounting plate 5 plays a role in supporting and shaping the panel 4. As Figure 2 shown, a raised flange 41 protruding upward is arranged on the front edge part of the panel 4, and test tube holes 42 corresponding one by one to the heating chambers 71 on the two heating elements 7 are arranged in the area surrounded by the flange 41. And as Figure 6 shown, a downward-extending annular lower protection edge 43 (the lower protection edge 43 protrudes from the back surface of the panel 4) is arranged at the lower part of each test tube hole 42. And from Figure 4 it can be seen that a butting port 72 with an outer diameter not less than that of the annular lower protection edge 43 is arranged at the top opening of each heating chamber 71. In the installed state, the lower protection edge 43 is inserted into the corresponding butting port 72. Therefore, the liquid flowing downward along the test tube hole 42 will directly enter the heating chamber 71 and finally enter the waste liquid storage tray 2, which can effectively prevent the liquid from flowing along the gap between the panel 4 and the heating element 7. For the soft graphite heating element 7, the arranged panel 4 can also effectively avoid the phenomenon that the test tube collides with the heating element 7 and causes the heating element 7 to be damaged.
[0025] The digestion instrument uses a heating body 7 made of graphite material. Since the graphite material has good thermal conductivity, the heat generated by the heating rod will be quickly and evenly transferred to the heating chambers 71 at various parts of the heating body 7, and the temperatures at all parts of the inner wall of the heating chamber 71 are uniform. Therefore, stable circumferential heating can be carried out on all parts of the test tube entering the heating chamber 71, thereby improving the digestion effect; by providing a convex edge 41 at the edge of the panel 4, it effectively prevents the waste liquid spilled on the panel 4 from flowing away from the edge, so that all the waste liquid flows into the test tube holes 42; by providing a lower edge 43 on the back of the panel 4, all the waste liquid falling from the test tube holes 42 enters the heating chamber 71; by installing a drainage tube 74 in the drainage hole 73 at the bottom of the heating chamber 71, all the waste liquid entering the heating chamber 71 flows into the waste liquid storage tray 2. Therefore, this digestion instrument can effectively prevent the waste liquid from entering the cleaning dead corners, not only can collect all the waste liquid, but also is convenient for cleaning.
[0026] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.
[0027] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the said element.
[0028] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be within the scope of the inventive concept described herein, through the above teachings or the technology or knowledge in the relevant field for modification. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the protection scope of the appended claims of the present invention.
Claims
1. A digestion instrument, characterized in that: It includes a digestion instrument body and a heating device. Inside the digestion instrument body, there is an inner shell with an open top, and the heating device is arranged in this inner shell; the heating device includes a heating body made of graphite. A number of heating cavities are arranged in an array on the front of the heating body. The heating cavities are columnar and have open tops; a liquid discharge hole is penetrated and arranged at the bottom of the heating cavity, and a water dripping hole corresponding to the liquid discharge hole is arranged at the bottom of the inner shell; a waste liquid bin tray is arranged at the lower part of the digestion instrument body, and this waste liquid bin tray is located below the inner shell.
2. The digestion instrument according to claim 1, characterized in that: A separation gap is reserved between the outer periphery of the heating body and the inner shell, and a separation layer is arranged in the separation gap.
3. The digestion instrument according to claim 1, characterized in that: A panel is arranged at the top of the heating body. This panel covers the top of the inner shell, and the panel has test tube holes corresponding one by one to the heating cavities.
4. The digestion instrument according to claim 3, wherein: An inner mounting plate is installed below the panel by bolts. The edge of the inner mounting plate is a fitting part bent downward. The fitting part is installed on the inner side of the upper edge of the inner shell by bolts, and the middle part of the front of the inner mounting plate is an avoidance opening for avoiding the whole heating body.
5. The digestion instrument according to claim 3, wherein: A downward-extending annular lower protection edge is arranged at the lower part of each test tube hole, and a docking port is arranged at the top opening of each heating cavity, and the lower protection edge is inserted into the corresponding docking port.
6. The digestion instrument according to claim 3, characterized in that: An upward-protruding convex edge is arranged at the top edge of the panel.
7. A digestion instrument according to any one of claims 1 to 6, characterized in that: A drainage pipe is installed in each liquid discharge hole, and the lower end of the drainage pipe passes through the water dripping hole at the bottom of the inner shell.