Closed moisture measuring instrument heating cavity upper cover and moisture measuring instrument thereof

Abstract

The application provides a closed moisture measuring instrument heating cavity upper cover and a moisture measuring instrument, the closed moisture measuring instrument heating cavity upper cover comprises an upper cover outer shell, an upper cover inner shell, a heat conduction component and a refrigeration component, a hot air outlet is formed in the upper end surface of the upper cover inner shell, the heat conduction component is installed on the upper cover inner shell and located above the hot air outlet, and the refrigeration component is installed on the heat conduction component; a cold air inlet is arranged at the bottom of the upper cover inner shell, the upper cover inner shell is fixed into the upper cover outer shell, so that a sandwich channel is formed between the upper cover inner shell and the upper cover outer shell, the hot air in the heating cavity forms cold air through the hot air outlet and the sandwich channel, and the cold air flows back to the heating cavity through the cold air inlet. The application can realize air circulation in the heating cavity, thereby solving the problem that the existing products are limited in use in harsh environments. The heating cavity upper cover can design a closed heating cavity, thereby minimizing the influence of external wind disturbance on measurement.

Description

Technical Field

[0001] This invention relates to the field of instrumentation, and in particular to a closed-type moisture meter heating chamber cover and the moisture meter thereof. Background Technology

[0002] In the existing technology, the drying method moisture analyzer is an instrument that measures the moisture or volatile component content in a sample based on the drying principle. It can be widely used in the production and experimental processes of industries such as pharmaceuticals, food, grain processing, rubber, and chemicals.

[0003] Existing moisture analyzers using the drying method are equipped with a cold air inlet and a hot air outlet. When measurement begins, outside cold air enters the heating chamber through the inlet. As the cold air is heated, its humidity decreases, and when it comes into contact with the sample, it carries away the moisture from the sample. The hot air is then discharged through the outlet.

[0004] Because the heating chamber has an inlet and an outlet, and the interior of the heating chamber is connected to the outside air, drastic changes in the outside air velocity or humidity will seriously affect the measurement results, which limits the use of the drying method moisture meter in harsh outside air environments.

[0005] In view of this, those skilled in the art have designed a closed-type heating chamber cover for a moisture meter and the moisture meter thereof, in order to overcome the above-mentioned technical problems. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art, such as the heating chamber of the moisture measuring instrument having an inlet and an outlet, and the drastic changes in the external air flow rate or humidity seriously affecting the measuring structure and limiting its use in harsh external air environments. The present invention provides a closed heating chamber cover for a moisture measuring instrument and the moisture measuring instrument thereof.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A closed-type moisture meter heating chamber cover is characterized in that the closed-type moisture meter heating chamber cover includes an outer cover shell, an inner cover shell, a heat conduction component, and a cooling component. The upper end face of the inner cover shell is provided with a hot air outlet. The heat conduction component is installed on the inner cover shell and located above the hot air outlet. The cooling component is installed on the heat conduction component.

[0009] The bottom of the inner shell of the upper cover is provided with a cold air inlet. The inner shell of the upper cover is fixed to the outer shell of the upper cover, so that a sandwich channel is formed between the inner shell of the upper cover and the outer shell of the upper cover. The hot air in the heating chamber passes through the hot air outlet and the sandwich channel to form cold air, and then flows back to the heating chamber through the cold air inlet.

[0010] According to one embodiment of the present invention, a drying component is provided on the outer wall surface of the inner shell of the upper cover, the drying component being located within the interlayer channel for absorbing moisture from the air.

[0011] According to one embodiment of the present invention, the heat conduction component is a heat sink, which is fixed to the upper end surface of the inner shell of the upper cover.

[0012] According to one embodiment of the present invention, the cooling component is a semiconductor refrigeration chip, which is fixed on the heat sink.

[0013] According to one embodiment of the present invention, the drying component is a porous media desiccant, which is installed on the outer walls of both sides of the inner shell of the upper cover.

[0014] According to one embodiment of the present invention, the interlayer channel is a closed channel.

[0015] According to one embodiment of the present invention, the lower part of the outer shell of the upper cover is provided with an inwardly protruding step portion along the inner wall surface, and the inner shell of the upper cover is fitted and fixed to the step portion, such that the interlayer channel is located between the outer wall surface of the inner shell of the upper cover and the upper inner wall surface of the outer shell of the upper cover.

[0016] According to one embodiment of the present invention, handles are respectively provided on the outer walls of both sides of the upper cover shell.

[0017] According to one embodiment of the present invention, the cold air inlets are located at the bottom of both sides of the inner shell of the upper cover.

[0018] The present invention also provides a moisture measuring instrument, characterized in that the moisture measuring instrument includes a closed heating chamber cover as described above.

[0019] The positive and progressive effects of this invention are as follows:

[0020] This invention relates to a closed-type moisture meter heating chamber cover and the moisture meter itself, which enables air circulation within the heating chamber, thus solving the problem of limited use of existing products in harsh environments. The heating chamber cover can be designed to enclose the heating chamber, thereby minimizing the impact of external wind disturbances on the measurement. Attached Figure Description

[0021] The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:

[0022] Figure 1 This is a schematic diagram of the structure of the heating chamber cover of the closed moisture meter of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of the upper cover shell of the heating chamber of the closed moisture meter of the present invention. Figure 1 .

[0024] Figure 3 This is a schematic diagram of the structure of the upper cover shell of the heating chamber of the closed moisture meter of the present invention. Figure 2 .

[0025] Figure 4 This is a schematic diagram of the structure of the inner shell of the upper cover of the heating chamber of the closed moisture measuring instrument of the present invention.

[0026] Figure 5 This is a schematic diagram showing the installation of the inner shell of the upper cover, the heat conduction component, the refrigeration component, and the drying component in the heating chamber of the closed moisture meter of the present invention.

[0027] [Attached image labels]

[0028] Top cover shell 10

[0029] Inner shell of top cover 20

[0030] Heat conduction component 30

[0031] Refrigeration component 40

[0032] Hot air outlet 21

[0033] Cold air inlet 22

[0034] Mezzanine Channel A

[0035] Drying component 50

[0036] Step 11

[0037] Handle 12 Detailed Implementation

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Embodiments of the invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts.

[0040] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the applicant in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.

[0041] Furthermore, the invention should be understood not only through the actual terminology used, but also through the meaning implied by each term.

[0042] Figure 1 This is a schematic diagram of the structure of the heating chamber cover of the closed moisture meter of the present invention. Figure 2 This is a schematic diagram of the structure of the upper cover shell of the heating chamber of the closed moisture meter of the present invention. Figure 1 . Figure 3 This is a schematic diagram of the structure of the upper cover shell of the heating chamber of the closed moisture meter of the present invention. Figure 2 . Figure 4 This is a schematic diagram of the structure of the inner shell of the upper cover of the heating chamber of the closed moisture measuring instrument of the present invention. Figure 5 This is a schematic diagram showing the installation of the inner shell of the upper cover, the heat conduction component, the refrigeration component, and the drying component in the heating chamber of the closed moisture meter of the present invention.

[0043] like Figures 1 to 5 As shown, this invention discloses a closed-type moisture meter heating chamber cover, which includes an outer cover 10, an inner cover 20, a heat conduction component 30, and a cooling component 40. A hot air outlet 21 is provided on the upper end face of the inner cover 20. The heat conduction component 30 is mounted on the inner cover 20, located above the hot air outlet 21. The cooling component 40 is mounted on the heat conduction component 30. A cold air inlet 22 is provided at the bottom of the inner cover 20, preferably located on both sides of the bottom of the inner cover 20.

[0044] The inner shell 20 is fixed inside the outer shell 10, forming a sandwich channel A between the inner shell 20 and the outer shell 10. Hot air in the heating chamber passes through the hot air outlet 21 and the sandwich channel A to form cold air, which then flows back to the heating chamber through the cold air inlet 22. The sandwich channel A is preferably a closed channel.

[0045] Preferably, a drying component 50 is also provided on the outer wall of the inner shell 20 of the upper cover. The drying component 50 is located in the interlayer channel A and is used to absorb moisture in the air.

[0046] For example, in this embodiment, the heat conduction component 30 is preferably a heat sink, which is fixed to the upper end surface of the inner shell 20. The cooling component 40 is preferably a semiconductor refrigeration chip, which is fixed to the heat sink. The drying component 50 is preferably a porous media desiccant, which is installed on the outer walls of both sides of the inner shell 20.

[0047] More preferably, an inwardly protruding step 11 is provided on the lower part of the outer shell 10 along the inner wall surface, and the inner shell 20 is attached and fixed to the step 11, so that the interlayer channel A is located between the outer wall surface of the inner shell 20 and the upper inner wall surface of the outer shell 10.

[0048] In addition, handles 12 can be provided on the outer walls of both sides of the upper cover shell 10 to facilitate the opening and closing of the heating chamber upper cover.

[0049] The present invention also provides a moisture measuring instrument, which includes a closed moisture measuring instrument heating chamber cover as described above.

[0050] According to the above structural description, when the heating chamber cover of the closed moisture meter of the present invention is used, it does not require the design of an air inlet and outlet. The closed heating chamber cover of the present invention can be designed as a closed structure with the weighing platform below. The hot air in the heating chamber flows out from the hot air outlet 21 of the inner shell 20 of the heating chamber cover, and then enters the upper part of the interlayer channel A between the outer shell 10 and the inner shell 20 of the upper cover. Under the continuous action of air buoyancy in the heating chamber, the hot air flows to both sides of the interlayer channel A. The semiconductor cooling chip (i.e., the cooling component 40) continuously cools under a given control voltage, and its temperature decreases. The heat sink (i.e., the heat conduction component 30) is in close contact with the semiconductor cooling chip (i.e., the cooling component 40), and the heat sink (i.e., the heat conduction component 30) has a high heat conduction efficiency.

[0051] As the temperature of the semiconductor cooling chip (i.e., cooling component 40) decreases, the temperature of the heat sink (i.e., heat conduction component 30) also decreases. During the flow of hot air to both sides of the interlayer channel A, it exchanges heat with the low-temperature heat sink (i.e., heat conduction component 30), resulting in a decrease in air temperature and an increase in humidity, transforming it into low-temperature, humid air.

[0052] The airflow caused by buoyancy creates a low pressure at the cold air inlet 22 of the inner shell 20 of the upper cover. Under the action of the pressure difference, the low-temperature humid air flows through the porous medium desiccant (i.e., the drying component 50). The desiccant absorbs the moisture in the low-temperature humid air, turning it into low-temperature dry air. The low-temperature dry air enters the heating chamber through the cold air inlet 22 on the inner shell 20 of the upper cover, restarting the air circulation flow.

[0053] The invention incorporates a semiconductor cooling chip and a porous media desiccant into the heating chamber cover of the closed moisture meter to construct an air circulation system within the heating chamber. This eliminates the traditional air inlet / outlet that contacts the outside environment in the heating chamber, and a closed heating chamber cover is designed.

[0054] In summary, the closed-type moisture meter heating chamber cover and the moisture meter of this invention enable air circulation within the heating chamber, thereby solving the problem of limited use of existing products in harsh environments. The heating chamber cover can be designed to create a closed heating chamber, thus minimizing the impact of external wind disturbances on the measurement.

[0055] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A cover for a closed water moisture measuring instrument heating chamber, characterized in that, The upper cover of the closed moisture meter heating cavity comprises an upper cover shell, an upper cover inner shell, a heat conduction component and a refrigeration component, the upper end surface of the upper cover inner shell is provided with a hot air outlet, the heat conduction component is installed on the upper cover inner shell and located above the hot air outlet, and the refrigeration component is installed on the heat conduction component; The bottom of the upper cover inner shell is provided with a cold air inlet, the upper cover inner shell is fixed in the upper cover shell, so that a sandwich channel is formed between the upper cover inner shell and the upper cover shell, the hot air in the heating cavity forms cold air through the hot air outlet and the sandwich channel, and the cold air flows back to the heating cavity through the cold air inlet; The outer wall surface of the upper cover inner shell is provided with a drying component, the drying component is located in the sandwich channel and used for absorbing moisture in air.

2. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The heat conduction component is a heat dissipation fin, and the heat dissipation fin is fixed on the upper end surface of the upper cover inner shell.

3. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 2, characterized in that, The refrigeration component is a semiconductor refrigeration fin, and the semiconductor refrigeration fin is fixed on the heat dissipation fin.

4. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The drying component is a porous medium desiccant, and the porous medium desiccant is installed on the outer wall surfaces of the two sides of the upper cover inner shell.

5. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The sandwich channel is a closed channel.

6. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The lower part of the upper cover shell is provided with a step portion protruding inward along the inner wall surface, the upper cover inner shell is fixed to the step portion, so that the sandwich channel is located between the outer wall surface of the upper cover inner shell and the upper inner wall surface of the upper cover shell.

7. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The outer wall surfaces of the two sides of the upper cover shell are respectively provided with handles.

8. The upper cover of the heating chamber of the closed moisture measurement instrument according to claim 1, characterized in that, The cold air inlets are formed in the bottom of the two sides of the upper cover inner shell.

9. A moisture meter, characterized in that The moisture meter comprises the closed moisture meter heating cavity upper cover according to any one of claims 1-8.

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