Netted crucible with expanded volume and steam adsorption instrument

Abstract

The utility model provides a netted crucible with expanded volume and a steam adsorption instrument, the netted crucible comprises a fixed cavity, an expanded cavity and a connecting piece, the fixed cavity and the expanded cavity are made of woven meshes, and the fixed cavity is a hollow piece; the size specification of the expansion cavity is larger than that of the fixed cavity; the expansion cavity is movably arranged on the peripheral side of the fixed cavity in the axial direction of the fixed cavity through a connecting piece; a hanging rope is arranged at the end, far away from the expansion cavity, of the fixed cavity; one end, far away from the fixed cavity, of the hanging rope is connected to a balance of the steam adsorption instrument. The expansion cavity is arranged on the periphery of the fixing piece through the connecting piece, and the position of the expansion cavity can be adjusted on the fixing cavity in the axial direction. Thus, the total volume of the fixed cavity and the expansion cavity is the volume for containing samples, reasonable adjustment can be carried out according to the number of the samples, crucible replacement and zero point recalibration are not needed for the samples with the large sample containing amount, and instrument operation convenience and measurement efficiency are improved.

Description

Technical Field

[0001] The utility model relates to a device with an adsorption function in the production and processing of cut tobacco, in particular to a net crucible with an extended volume and a steam adsorption instrument. Background Art

[0002] At present, the evaluation of the adsorption performance of adsorption materials for vapor is mainly completed by a gravimetric vapor adsorption instrument. This method is to control a certain concentration of vapor to flow through a crucible filled with adsorption materials at a certain flow rate, and evaluate the adsorption performance of the material for a certain vapor by the change in the weight of the adsorption materials before and after adsorbing the vapor.

[0003] Especially in the tobacco field, materials such as cut tobacco, filter tips, and cigarette paper are greatly affected by water vapor in the air. To evaluate this influence, it is necessary to use a gravimetric vapor adsorption instrument to simulate the concentrations of various components in the air, especially the concentration of water vapor, to test the performance changes of cut tobacco, filter tips, and cigarette paper. For example, a dynamic and static dual-mode gravimetric vapor adsorption instrument with the publication number CN108444858A can be used to detect the concentration of water vapor in the air.

[0004] However, the crucible for loading samples used in the vapor adsorption instrument involved in the above patent is a quartz crucible with a closed bottom and side and an open top, similar to a bowl shape. This crucible makes the samples placed at the bottom of the crucible unable to fully contact with the vapor, resulting in inaccurate test results or long test time. In addition, the volume of the currently commonly used crucible is fixed. For the situation where the sample loading amount needs to be increased, only a larger crucible can be replaced to solve the problem. When replacing a large-volume crucible, the instrument needs to recalibrate the zero point, increasing the complexity of the instrument operation and reducing the test efficiency of the instrument. Therefore, it is necessary to design a net crucible with an extended volume and a vapor adsorption instrument. Summary of the Utility Model

[0005] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the utility model is to provide a net crucible with an extended volume and a vapor adsorption instrument, which are used to solve the defects in the prior art that the samples at the bottom of the crucible cannot fully contact with the gas medium, the volume of the crucible is fixed, and frequent replacement takes a long time.

[0006] To achieve the above object, the utility model provides a net crucible with an extended volume, which is applied to a vapor adsorption instrument; it includes a fixed cavity, an extended cavity, and a connecting member. Both the fixed cavity and the extended cavity are composed of a woven mesh. The fixed cavity is a hollow member; the size specification of the extended cavity is larger than that of the fixed cavity; the extended cavity is movably arranged on the outer peripheral side of the fixed cavity along the axial direction of the fixed cavity through the connecting member; a hanging rope is further arranged at the end of the fixed cavity away from the extended cavity, and one end of the hanging rope away from the fixed cavity is connected to the balance of the vapor adsorption instrument.

[0007] Preferably, the connecting member is a connecting bolt, and the number of the connecting bolts is at least one. The connecting bolts connect the expansion chamber and the fixed chamber.

[0008] Preferably, the steam adsorption instrument includes a gas source, an intake pipeline, an adsorption chamber, a balance, and an exhaust pipeline. The gas source is communicated with the adsorption chamber through the intake pipeline to introduce a gas medium into the adsorption chamber; the exhaust pipeline is connected to the adsorption chamber; the balance is arranged in the adsorption chamber and is used for measuring the weight change of the sample in the mesh crucible before and after ventilation.

[0009] Preferably, a suspension rod is further arranged on the balance, and the hanging rope is connected to the end of the suspension rod far away from the balance.

[0010] Preferably, the end of the intake pipeline far away from the gas source is arranged on the lower side of the expansion chamber.

[0011] Preferably, a stop valve is further arranged on the intake pipeline, and the stop valve is used for controlling the on-off of the intake pipeline.

[0012] As described above, the mesh crucible with an expanded volume and the steam adsorption instrument according to the present invention have the following beneficial effects:

[0013] 1. The mesh crucible with an expanded volume according to the present invention is provided with a fixed chamber, an expansion chamber, and a connecting member at the same time. The fixed chamber is a hollow member, and the expansion chamber is arranged on the outer periphery of the fixed member through the connecting member and can be adjusted axially on the fixed chamber; thus, the total volume of the fixed chamber and the expansion chamber is the volume for holding the sample, which can be reasonably adjusted according to the amount of the sample. For samples with a large loading amount, there is no need to replace the crucible and recalibrate the zero point, which improves the convenience of instrument operation and the measurement efficiency.

[0014] 2. The mesh crucible with an expanded volume according to the present invention, both the fixed chamber and the expansion chamber are made of a woven mesh, which can ensure that the sample at the lowest end is in full contact with the adsorbent gas, improves the test accuracy, and saves the test time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the steam adsorption instrument according to the present invention;

[0016] Figure 2 is a schematic structural diagram of the mesh crucible with an expanded volume according to the present invention.

[0017] Explanation of the reference numerals:

[0018] 1. Gas source; 2. Intake pipeline; 3. Stop valve; 4. Adsorption cavity; 5. Mesh crucible; 501. Hanging rope; 502. Fixed cavity; 503. Connecting piece; 504. Expansion cavity; 6. Balance; 601. Suspension rod; 7. Exhaust pipeline. Detailed implementation mode

[0019] The following specific embodiments illustrate the implementation mode of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0020] It should be noted that the structures, ratios, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of narration and are not used to limit the scope under which the present utility model can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope under which the present utility model can be implemented.

[0021] As Figure 1 - Figure 2 shown, the present utility model provides a mesh crucible with an expanded volume (hereinafter referred to as the mesh crucible 5), including a fixed cavity 502, an expansion cavity 504, and a connecting piece 503. Both the fixed cavity 502 and the expansion cavity 504 are composed of a woven mesh, and the fixed cavity 502 is a hollow part; the size specification of the expansion cavity 504 is larger than that of the fixed cavity 502; the expansion cavity 504 is movably arranged on the outer peripheral side of the fixed cavity 502 along the axial direction of the fixed cavity 502 through the connecting piece 503; a hanging rope 501 is also arranged at the end of the fixed cavity 502 away from the expansion cavity 504, and one end of the hanging rope 501 away from the fixed cavity 502 is connected to the balance 6 of the steam adsorption instrument.

[0022] The mesh crucible with an expanded volume involved in the present utility model has an expansion cavity 504 arranged on the outer peripheral side of a fixed cavity 502 through a connecting member 503, and the expansion cavity 504 can move up and down outside the fixed cavity 502 in the vertical direction. Also, since the fixed cavity 502 is a hollow member with an open bottom, the volume of the mesh crucible 5 is the total volume of the fixed cavity 502 and the expansion cavity 504. The operator can adjust the position of the expansion cavity 504 on the fixed cavity 502 according to the amount of sample loading, thereby realizing the adjustment of the volume of the mesh crucible 5, and it has a wide range of applications. Both the fixed cavity 502 and the expansion cavity 504 are composed of a woven mesh, and the samples at the bottom of the expansion cavity 504 can also be in full contact with the gas medium, improving the test accuracy and saving the test time.

[0023] Preferably, as Figure 2 shown, the connecting member 503 adopts a connecting bolt, and the number of connecting bolts is at least one. The connecting bolts connect the expansion cavity 504 and the fixed cavity 502. Further, in this embodiment, when the number of connecting bolts is one, the connecting bolt penetrates through two opposite surfaces of the expansion cavity 504 and the fixed cavity 502 simultaneously, thus realizing the connection between the expansion cavity 504 and the fixed cavity 502. When the number of connecting bolts is two, the connecting bolts penetrate through two adjacent surfaces of the expansion cavity 504 and the fixed cavity 502 respectively, realizing the connection between the expansion cavity 504 and the fixed cavity 502. Additionally, in other embodiments, the number of connecting bolts depends on the situation.

[0024] Preferably, as Figure 1 shown, the vapor sorption instrument includes a gas source 1, an inlet pipeline 2, an adsorption chamber 4, a balance 6, and an exhaust pipeline 7. The gas source 1 is communicated with the adsorption chamber 4 through the inlet pipeline 2, and the exhaust pipeline 7 is connected in the adsorption chamber 4; the balance 6 is arranged in the adsorption chamber 4 and is used to measure the weight change of the sample in the mesh crucible 5 before and after gas passing. In this embodiment, the other end of the exhaust pipeline 7 far from the adsorption chamber 4 is connected to the atmospheric environment. The gas source 1 can generate a gas medium with a certain concentration.

[0025] Further, as Figure 1 、 Figure 2 shown, in this embodiment, a suspension rod 601 is further arranged on the balance 6, and a hanging rope 501 is connected to the bottom end of the suspension rod 601.

[0026] Further, as Figure 1 shown, in this embodiment, the end of the inlet pipeline 2 far from the gas source 1 is arranged on the lower side of the expansion cavity 504, and the purpose is to enable the samples at the bottom of the expansion cavity 504 to be fully in contact with the gas medium in the gas source 1 and ensure the measurement accuracy. Further, as Figure 1 shown, the inlet end of the exhaust pipeline 7 is located on the upper side of the fixed cavity 502 to ensure that the gas medium can surround the samples in the entire expansion cavity 504 and the fixed cavity 502.

[0027] Preferably, as Figure 1 shown, in this embodiment, a stop valve 3 is further provided on the intake pipeline 2, and the stop valve 3 is used to control the on / off of the intake pipeline 2. Further, in other embodiments, a stop valve 3 may also be provided on the exhaust pipeline 7 to control the on / off of the exhaust pipeline 7.

[0028] Further, in this embodiment, the fixed cavity 502 and the expansion cavity 504 are arranged in a cylindrical shape; in other embodiments, the fixed cavity 502 and the expansion cavity 504 may also be arranged in a rectangular shape. The woven mesh can be made of a ductile metal material or a ductile non-metal material (such as plastic), but a material that can adsorb gas media cannot be used.

[0029] The net crucible with an expanded volume and the steam adsorber related to the present utility model will be described with a specific embodiment for easy explanation. In this embodiment, the sample is tobacco shreds, and the gas medium in the gas source 1 is water vapor; the working steps are as follows:

[0030] S1: The operator assembles and installs each component according to the Figure 1 , Figure 2 , and the descriptions of the above components.

[0031] S2: The operator selects a certain amount of tobacco shred sample and puts it into the net crucible 5. If the volume of the tobacco shred sample is less than or equal to the volume of the fixed cavity 502, the operator loosens the connecting piece 503 to move the expansion cavity 504 upward so that the bottom end of the expansion cavity 504 closely adheres to the bottom end of the fixed cavity 502, and then tightens the connecting piece 503, and the tobacco shred sample is located in the fixed cavity 502; if the volume of the tobacco shred sample is greater than the volume of the fixed cavity 502 and less than or equal to the total volume of the fixed cavity 502 and the expansion cavity 504, the operator loosens the connecting piece 503 to move the expansion cavity 504 downward, and when it reaches the expected position, tightens the connecting piece 503 so that the tobacco shred sample is in the fixed cavity 502 and the expansion cavity 504; then the net crucible 5 containing the tobacco shred sample is connected to the hanging rod 601 of the balance 6 through the hanging rope 501.

[0032] S3: After the net crucible 5 containing the tobacco shred sample is connected to the hanging rod 601 of the balance 6, the balance 6 measures the weight of the tobacco shred sample and records the weight parameter.

[0033] S4: Open the stop valve 3 on the intake pipeline 2, and the intake pipeline 2 is connected; open the gas source 1, and the water vapor in the gas source 1 enters the intake pipeline 2, then enters the adsorption cavity 4 through the intake pipeline 2, and the end of the intake pipeline 2 is located below the expansion cavity 504. At this time, the tobacco shred sample adsorbs the moisture in the water vapor, and the weight of the tobacco shred sample gradually increases.

[0034] S5: When the moisture absorption of the cut tobacco sample is saturated in step S4, the weight parameter measured by the balance 6 remains unchanged at this time. Record this weight parameter and compare it with the weight parameter recorded in step S3 to calculate the vapor adsorption performance of the cut tobacco sample.

[0035] Furthermore, in step S4, when water vapor enters the adsorption cavity 4 through the intake pipeline 2, the exhaust pipeline 7 is always in a connected state to prevent water vapor from adsorbing on the balance 6 after the moisture absorption of the cut tobacco sample is saturated, which may affect the accuracy of the balance 6 during long-term use.

[0036] In addition, in other embodiments, the sample can be materials such as filter tips and cigarette papers, and the gas medium in the gas source 1 can be the gas generated by the combustion of cut tobacco.

[0037] The reticulated crucible and vapor sorption instrument with an extended volume involved in the present utility model have the following beneficial effects:

[0038] 1. In the present utility model, the extended cavity 504 moves up and down around the outer periphery of the fixed cavity 502 through the connecting member 503, thereby adjusting the volume of the reticulated crucible 5, which can be applicable to different sample loading amounts. For samples with a large sample loading amount, there is no need to replace the reticulated crucible 5 and recalibrate the zero point, improving the convenience of instrument operation and the test efficiency.

[0039] 2. Both the fixed cavity 502 and the extended cavity 504 in the present utility model are made of woven mesh. The end of the intake pipeline 2 far from the gas source 1 is arranged on the lower side of the extended cavity 504. In this way, the sample at the bottom of the reticulated crucible 5 can be fully contacted with the gas medium, improving the test accuracy and saving the test time.

[0040] In summary, the present utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0041] The above embodiments are only illustrative of the principles and effects of the present utility model and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A reticulated crucible with an extended volume, which is applied to a steam sorption apparatus; characterized in that: It includes a fixed cavity (502), an expansion cavity (504), and a connecting member (503). Both the fixed cavity (502) and the expansion cavity (504) are composed of a woven mesh. The fixed cavity (502) is a hollow member. The size specification of the expansion cavity (504) is larger than that of the fixed cavity (502). The expansion cavity (504) is movably arranged on the outer peripheral side of the fixed cavity (502) along the axial direction of the fixed cavity (502) through the connecting member (503). A hanging rope (501) is further provided at the end of the fixed cavity (502) away from the expansion cavity (504), and one end of the hanging rope (501) away from the fixed cavity (502) is connected to the balance (6) of the steam adsorption instrument.

2. The reticulated crucible with an extended volume according to claim 1, characterized in that: The connecting member (503) is a connecting bolt. The number of the connecting bolts is at least one, and the connecting bolts connect the expansion cavity (504) and the fixed cavity (502).

3. A steam adsorption instrument, comprising the reticular crucible with an extended volume according to any one of claims 1-2, characterized in that: The steam adsorption instrument includes a gas source (1), an intake pipeline (2), an adsorption cavity (4), a balance (6), and an exhaust pipeline (7). The gas source (1) is communicated with the adsorption cavity (4) through the intake pipeline (2) to introduce a gas medium into the adsorption cavity (4). The exhaust pipeline (7) is connected in the adsorption cavity (4). The balance (6) is arranged in the adsorption cavity (4) and is used to measure the weight change of the sample in the mesh crucible (5) before and after gas passing.

4. The steam adsorber according to claim 3, wherein: A suspension rod (601) is further provided on the balance (6), and the hanging rope (501) is connected to the end of the suspension rod (601) away from the balance (6).

5. The steam adsorption instrument according to claim 3, wherein: The end of the intake pipeline (2) away from the gas source (1) is arranged on the lower side of the expansion cavity (504).

6. The steam sorption instrument according to claim 3, wherein: A stop valve (3) is further opened on the intake pipeline (2), and the stop valve (3) is used to control the on-off of the intake pipeline (2).

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