Water bath kettle

Abstract

The utility model relates to the technical field of biological medicine experimental equipment, in particular to a water bath kettle. Comprising a pot body and a pot cover, a cavity used for water bath heating is formed in the pot body, a heating device is arranged in the pot body, a control device is arranged in the pot body, the position of the heating device corresponds to the position of the cavity, the control device is electrically connected with the heating device, an opening allowing materials to enter and exit is formed in the upper portion of the cavity, and the pot cover corresponds to the opening in shape. Condensate water is guided to the side wall of the cavity through the shape of the drainage block. Local low temperature is generated at the designated position of the inner wall of the cavity through the cooling device, and local convection can be formed in the cavity, so that water vapor is easier to condense at the designated position, and the possibility that condensed water falls into the reagent is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedical experimental equipment, in particular to a water bath pot. Background Art

[0002] Water bath is mainly used for distillation, drying, concentration, and soaking of chemicals or biological products in laboratories. It can also be used for constant temperature heating and other temperature tests. It is an essential tool for biology, genetics, virus, aquaculture, environmental protection, medicine, sanitation, laboratories, analysis rooms, education and scientific research.

[0003] At present, water baths usually use electric heating to heat water with a heating tube. When the water temperature rises to a certain temperature, a thermostat is used to keep the water temperature constant. Then the container to be heated can be placed in the water bath for heating. During the water bath heating process, in order to keep the temperature of some areas more constant, the water bath heating area needs to be designed as a closed area to reduce the heat exchange between the heating area and the outside.

[0004] In order to achieve temperature stability in water bath heating, the water bath pot in the existing design generally includes a pot body and a pot cover. For example, a constant temperature water bath pot disclosed in Chinese patent application publication number CN101966475A on February 9, 2011 includes an outer shell with an opening at the upper end, an inner liner is arranged inside the outer shell, a top plate is arranged at the opening of the outer shell, both ends of the top plate are connected to the inner wall of the inner liner, a heater is arranged inside the inner liner, the heater is connected to a temperature controller and a switch through electric wires, the temperature controller and the switch are placed on the outer shell, one end of the inner liner is connected to a water inlet pipe, the other end of the outer shell is connected to a water outlet pipe, four large holes of the same size are arranged on the top plate, and a plurality of hole covers of different diameters are arranged above each large hole.

[0005] In actual use, it is found that the water vapor generated by water bath heating will gather and condense on the lower side of the top plate, and the condensed water droplets will easily drip into the reagents being heated in the water bath to cause contamination or affect the concentration of the reagents. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to:

[0007] 1. Design a water bath pot with a unique lid shape to guide the condensed water back into the pot body.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water bath pot, comprising a pot body and a pot cover, wherein a cavity for water bath heating is arranged in the pot body, a heating device is arranged in the pot body, a control device is arranged in the pot body, the position of the heating device corresponds to the position of the cavity, the control device is electrically connected to the heating device, an opening for material entry and exit is arranged above the cavity, the pot cover corresponds to the shape of the opening, a drainage block is arranged at one end of the pot cover near the cavity, and when the pot cover is installed at the opening, the horizontal height of one side of the bottom of the drainage block is higher than the horizontal height of the other side of the drainage block.

[0009] When heated in a water bath, water vapor contacts the drainage block and condenses into water droplets at the bottom of the drainage block. Since one side of the bottom of the drainage block is higher than the other side, the water droplets will move along the lower surface of the drainage block under the influence of gravity and the surface tension of the water droplets until they contact the side wall of the cavity. This ensures that the water droplets will not directly fall and contact the reagent, causing contamination.

[0010] Optionally, a hydrophobic film is provided on one end surface of the drainage block near the cavity. Providing a hydrophobic film at the lower end of the drainage block can better guide the condensed liquid to flow from the drainage block to the side wall of the cavity and finally merge into the liquid in the cavity.

[0011] Optionally, a pressure relief valve is provided on the pot cover, and the pressure relief valve passes through the pot cover, with one end of the pressure relief valve in contact with the outside world and the other end in contact with the cavity.

[0012] Optionally, a cooling device is further provided in the pot body, and the cooling device acts on the inner wall of the cavity, and the cooling device is provided near the other end of the drainage block. The cooling device generates a local low temperature at a designated position on the inner wall of the cavity, and can form a local convection in the cavity, so that water vapor is more easily condensed at the designated position, further reducing the possibility of condensed water falling into the reagent.

[0013] As another design idea to prevent condensed water from falling into the reagent, the bottom shape of the drainage block at the bottom of the pot cover can be designed to be in the shape of a water droplet parabolic line. A liquid injection device is added to the inner wall of the cavity near the drainage block. The principle is that when the water bath is heated, the water bath liquid is continuously sprayed onto the bottom of the drainage block through the injection device, and the shape of the bottom of the drainage block guides the liquid back to the water bath liquid in the cavity. That is, by continuously cleaning the bottom of the drainage block, condensed water is prevented from falling into the reagent. This design idea is derived from the water curtain principle in the decorative fountain, and is not a refinement of the design scheme of the aforementioned water bath pot.

[0014] The beneficial technical effect of the utility model is that the condensed water is guided to the side wall of the cavity by the shape of the drainage block. The cooling device generates a local low temperature at a designated position on the inner wall of the cavity, which can form a local convection in the cavity, making it easier for water vapor to condense at the designated position, further reducing the possibility of condensed water falling into the reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a single water bath module of the utility model;

[0016] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of another embodiment of the utility model.

[0018] Figure numerals: 1-pot body, 2-pot cover, 3-cavity, 4-heating device, 5-pressure relief valve, 6-drainage block, 7-cooling device, 8-liquid injection device, 9-control device. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] Example 1

[0021] Reference Figure 1 , 2 As shown, a water bath pot comprises a pot body 1 and a pot cover 2, a cavity 3 for water bath heating is arranged in the pot body 1, a heating device 4 is arranged in the pot body 1, a control device 9 is arranged in the pot body 1, the position of the heating device 4 corresponds to the position of the cavity 3, the control device 9 is electrically connected to the heating device 4, an opening for material entry and exit is arranged above the cavity 3, and the pot cover 2 corresponds to the shape of the opening. A pressure relief valve 5 is arranged on the pot cover 2. The pressure relief valve 5 passes through the pot cover 2, one end of which is in contact with the outside world, and the other end is in contact with the cavity 3. The above-mentioned heating device 4 can be any heating means that can be obtained by those skilled in the art, including but not limited to electric heating wires, heating tubes, etc.

[0022] A drainage block 6 is arranged at one end of the pot cover 2 near the cavity 3 . When the pot cover 2 is installed at the opening, the horizontal height of one side of the bottom of the drainage block 6 is higher than the horizontal height of the other side of the drainage block 6 .

[0023] A hydrophobic membrane is provided on one end surface of the drainage block 6 near the cavity 3. The hydrophobic membrane provided at the lower end of the drainage block 6 can better guide the condensed liquid to flow from the drainage block 6 to the side wall of the cavity 3 and finally merge into the liquid in the cavity 3. The structure of the hydrophobic membrane can refer to the hydrophobic membrane of Chinese patent application publication number CN109957131A published on July 2, 2019. In order to save space, it is only cited here, but all technical disclosures of the above application should also be regarded as part of the technical disclosure of the present invention application.

[0024] When heated in a water bath, water vapor contacts the drainage block 6 and condenses into water droplets at the bottom of the drainage block 6. Since one side of the bottom of the drainage block 6 is higher than the other side, the water droplets will move along the lower surface of the drainage block 6 under the influence of gravity and the surface tension of the water droplets until they contact the side wall of the cavity 3. This ensures that the water droplets will not directly fall and contact the reagent, causing contamination.

[0025] A cooling device 7 is also provided in the pot body 1, and the cooling device 7 acts on the inner wall of the cavity 3, and the cooling device 7 is provided near the other end of the drainage block 6. The cooling device 7 generates a local low temperature at a designated position of the inner wall of the cavity 3, and can form a local convection in the cavity 3, so that water vapor is more easily condensed at the designated position, further reducing the possibility of condensed water falling into the reagent.

[0026] Example 2

[0027] The difference from Example 1 is that the drainage block 6 of this embodiment is shaped as follows: Figure 3 As shown, a liquid injection device 8 is added in the pot body 1 to extract liquid from the water bath liquid in the cavity and inject it to the bottom of the drainage block 6, and the shape of the bottom of the drainage block 6 guides the liquid back to the water bath liquid in the cavity 3. That is, by continuously cleaning the bottom of the drainage block 6, condensed water is prevented from falling into the reagent.

[0028] In addition, the present embodiment does not include the design of the pressure relief valve 5 , the hydrophobic membrane, and the cooling device 7 .

[0029] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A water bath, characterized in that: The invention comprises a pot body and a pot cover, wherein a cavity for water bath heating is arranged in the pot body, a heating device is arranged in the pot body, a control device is arranged in the pot body, the position of the heating device corresponds to the position of the cavity, the control device is electrically connected to the heating device, an opening for materials to enter and exit is arranged above the cavity, the pot cover corresponds to the shape of the opening, a drainage block is arranged at one end of the pot cover near the cavity, and when the pot cover is installed at the opening, the horizontal height of one side of the bottom of the drainage block is higher than the horizontal height of the other side of the drainage block.

2. A water bath according to claim 1, characterized in that: A hydrophobic film is arranged on one end surface of the drainage block near the cavity.

3. A water bath according to claim 1, characterized in that: The pot cover is provided with a pressure relief valve.

4. A water bath according to claim 1, characterized in that: A cooling device is also provided in the pot body, and the cooling device acts on the inner wall of the cavity. The cooling device is arranged near the other end of the drainage block.

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