Filling of containers

Abstract

The utility model provides a kind of filling container, comprising: container body, container body is used to accommodate powder or liquid raw material;Input pipeline, for raw material filling to container body;Output pipeline, selectively membrane component is equipped on output pipeline, selectively membrane component is set to allow gas to pass to make gas along output pipeline discharge, and intercept raw material in container body.In filling, protective gas is introduced into container body using input pipeline, air in container body is extruded by protective gas and discharged from container by second pipeline, then powder or liquid raw material is filled into container using input pipeline, protective gas is extruded along output pipeline and discharged from container by raw material, and raw material is retained in container by the interception effect of selectively membrane component, without vacuumizing container and discharging protective gas to ensure that container reaches maximum capacity, which realizes filling of raw material conveniently and effectively.

Description

Technical Field

[0001] This utility model relates to the field of material storage technology, and in particular to a filling container. Background Technology

[0002] In chemical production, some powder or liquid chemical raw materials need to be filled into containers. Since many powder or liquid raw materials will deteriorate or become inactive after contact with air, it is necessary to avoid contact with air and deterioration of the raw materials during the filling process.

[0003] Conventional filling methods typically involve replacing the air inside the container with a protective gas or vacuuming the container to ensure oxygen-free filling. However, when using a protective gas for replacement, the presence of the protective gas inside the container can easily lead to the filling volume not reaching the container's maximum capacity. Vacuuming is a cumbersome process that requires the container to have high pressure resistance. Utility Model Content

[0004] One of the technical problems this invention aims to solve is: how to more conveniently fill powder or liquid chemical raw materials while avoiding contact between the raw materials and air.

[0005] To solve the above-mentioned technical problems, this utility model provides a filling container, including: a container body for containing powder or liquid raw materials; an input pipe connected to the container body for filling raw materials into the container body; and an output pipe connected to the container body. The output pipe is provided with a selective membrane assembly, which is configured to allow gas to pass through so that the gas is discharged along the output pipe and to intercept the raw materials inside the container body.

[0006] In some embodiments, the selective membrane assembly includes a removable first and second gland and a selectively permeable membrane disposed between the first and second glands.

[0007] In some embodiments, the selectively permeable membrane includes a membrane skeleton mounted between a first gland and a second gland and a membrane sheet disposed on the membrane skeleton.

[0008] In some embodiments, a sealing strip is provided between the first and second glands and the membrane skeleton.

[0009] In some embodiments, a gas check valve is also provided on the output pipeline. The gas check valve is located downstream of the selective membrane module along the gas discharge direction and is configured to intercept external gas from entering the container body.

[0010] In some embodiments, a backflush branch connected to the output line and located downstream of the selective membrane module is also included, and a backflush valve is provided on the backflush branch.

[0011] In some embodiments, an outlet valve located downstream of the selective membrane module is installed on the output line.

[0012] In some embodiments, a first pressure gauge and a second pressure gauge are installed on the output line, located upstream and downstream of the selective membrane module, respectively.

[0013] In some embodiments, an observation window is provided on the container body to observe the filling progress of the container body.

[0014] In some embodiments, an inlet valve is installed on the inlet line.

[0015] Through the above technical solution, this utility model provides a filling container. Before filling, a protective gas is introduced into the container body through an input pipe. The air inside the container body is squeezed by the protective gas and discharged from the container through a second pipe. Then, powder or liquid raw materials are filled into the container through the input pipe. The protective gas is squeezed by the raw materials and discharged from the container along the output pipe. The raw materials are retained in the container by the interception effect of the selective membrane module. There is no need to vacuum the container and the discharge of the protective gas ensures that the container reaches its maximum capacity, thus realizing the filling of raw materials conveniently and effectively. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the filling container according to an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the display selective membrane assembly according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the selectively permeable membrane according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Container body; 2. Inlet pipeline; 3. Outlet pipeline; 4. Selective membrane module; 41. First gland; 42. Second gland; 43. Membrane skeleton; 44. Diaphragm; 45. Connecting bolt; 5. Gas check valve; 6. Backflush branch; 7. Backflush valve; 8. Outlet valve; 9. First pressure gauge; 10. Second pressure gauge; 11. Observation window; 12. Inlet valve. Detailed Implementation

[0019] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principles of this utility model, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments described herein, but includes all technical solutions falling within the scope of the claims.

[0020] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0021] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0023] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0024] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0026] like Figures 1-3 As shown, this utility model provides a filling container, including: a container body 1, which is used to contain powder or liquid raw materials; an input pipe 2, which is connected to the container body 1 and is used to fill the raw materials into the container body 1; and an output pipe 3, which is connected to the container body; wherein, a selective membrane assembly 4 is provided on the output pipe 3, which is configured to allow gas to pass through so that the gas is discharged along the output pipe 3 and to intercept the raw materials in the container body 1.

[0027] Specifically, before filling the container with powder or liquid raw materials, a protective gas (such as nitrogen or argon, an inert gas) is introduced into the container body 1 through the inlet pipe 2. The air inside the container body 1 is compressed by the protective gas and passes through the selective membrane assembly 4 on the outlet pipe 3, exiting the container and preventing the raw materials from contacting the air inside. After the air is expelled, the raw materials are filled into the container body 1 through the inlet pipe 2. The entry of the powder or liquid raw materials into the container body 1 reduces the gas volume inside the container and increases the gas pressure. The protective gas passes through the selective membrane assembly 4 on the outlet pipe 3 and exits. The powder or liquid raw materials remain inside the container body 1 due to the interception effect of the selective membrane assembly 4, and the continuous exit of the protective gas from the container body 1 during the filling process allows the filling volume to reach the maximum capacity of the container. The selective membrane assembly 4 contains a selectively permeable membrane formed of polymer materials such as polytetrafluoroethylene or polypropylene. The pore size of the selectively permeable membrane is between the diameter of gas molecules and the diameter of powder or liquid molecules, allowing gas to pass through while intercepting the powder or liquid raw materials.

[0028] like Figure 2 As shown, in some embodiments, the selective membrane assembly 4 includes a removable first cap 41 and a second cap 42, and a selectively permeable membrane installed between the first cap 41 and the second cap 42.

[0029] Specifically, the output pipeline 3 includes two detachably connected pipe sections. A first cap 41 is disposed at the end of one pipe section, and a second cap 42 is disposed at the opposite end of the other pipe section. The first cap 41 and the second cap 42 have corresponding threaded holes, and are connected by connecting bolts 45 to form an integral output pipeline 3. A selectively permeable membrane is disposed between the first cap 41 and the second cap 42 to intercept the raw material within the output pipeline 3. In other embodiments, the first cap 41 and the second cap 42 can also be detachably connected by providing slots and clips. By providing detachable first caps 41 and second caps 42 for replacing the selectively permeable membrane, container maintenance becomes more convenient.

[0030] like Figure 3 As shown, in some embodiments, the selectively permeable membrane includes a membrane frame 43 mounted between a first cap 41 and a second cap 42 and a membrane sheet 44 disposed on the membrane frame 43.

[0031] Specifically, such as Figure 3 As shown, the membrane skeleton 43 is a ring-shaped closed structure, and the membrane sheet 44 is installed inside the membrane skeleton 43. The selectively permeable membrane is installed between the first pressure cap 41 and the second pressure cap 42 through the membrane skeleton 43, so that the membrane sheet 44 located inside the membrane skeleton 43 is positioned inside the output pipeline 3 to intercept the raw material. The membrane sheet 44 is formed of a polymer material such as polytetrafluoroethylene or polypropylene, and its pore size is between the diameter of gas molecules and the diameter of powder or liquid molecules, allowing air and protective gas inside the container body 1 to pass through the membrane sheet 44 while simultaneously intercepting powder or liquid raw materials. In other embodiments, the membrane skeleton 43 can also adopt other closed structures, provided that the membrane sheet 44 is fixedly installed.

[0032] In some embodiments, a sealing strip is provided between the first pressure cap 41 and the second pressure cap 42 and the membrane skeleton 43.

[0033] Specifically, to enhance the sealing performance of the filling container, sealing strips are provided on the contact surfaces of the first cap 41 and the second cap 42 with the membrane skeleton 43 to prevent the raw materials inside the container from leaking out or external air from entering the container. Specifically, sealing grooves can be provided on the opposing surfaces of the first cap 41 and the second cap 42, and the sealing strips can be placed within these grooves to form a sealing barrier, thereby enhancing the sealing performance of the filling container.

[0034] like Figure 1 As shown, in some embodiments, the output pipeline 3 is also provided with a gas check valve 5, which is located downstream of the selective membrane assembly 4 along the gas discharge direction and is configured to intercept external gas from entering the container body 1.

[0035] Specifically, the gas check valve 5 can be a pilot-operated check valve or a pressure-controlled check valve with a spring. During the filling operation, the compressed air or protective gas inside the container body 1 passes through the selective membrane module 4 and then exits the container through the gas check valve 5. At the same time, the gas check valve 5 can prevent external gas from entering the container body 1 in the reverse direction through the output pipeline 3, thus avoiding contact between external air and the raw materials inside the container.

[0036] like Figure 1 As shown, in some embodiments, a backflush branch 6 is also included, which is connected to the output line 3 and located downstream of the selective membrane module 4, and a backflush valve 7 is provided on the backflush branch 6.

[0037] Specifically, the backflush branch 6 connects to the selective membrane module 4 and the gas check valve 5 on the output pipeline 3. With increasing filling frequency, raw materials tend to adhere to the side of the membrane 44 facing inwards from the container body 1, causing a decrease in ventilation efficiency. Backflush is required to remove the raw materials adhering to the surface of the membrane 44. During backflush, the backflush valve 7 is opened, and gas is introduced into the output pipeline 3 via the backflush branch 6. The gas in the output pipeline 3 passes through the membrane 44 and enters the interior of the container body 1, effectively removing the raw materials adhering to the surface of the membrane 44 and improving the ventilation efficiency of the membrane 44.

[0038] like Figure 1 As shown, in some embodiments, an outlet valve 8 is installed on the output line 3 downstream of the selective membrane module 4.

[0039] Specifically, during the introduction of protective gas and filling of raw materials, the outlet valve 8 is opened to ensure that the gas inside the container body 1 can be squeezed out. After filling is completed, the outlet valve 8 is closed, and the gas check valve 5 is used to enhance the sealing effect of the container. When backflushing the diaphragm 44, the outlet valve 8 is closed and the backflushing valve 7 is opened to ensure that the backflushing airflow flows to the diaphragm 44, thereby enhancing the backflushing effect. The outlet valve 8 here can be a conventional valve such as a ball valve or a butterfly valve.

[0040] like Figure 1 As shown, in some embodiments, a first pressure gauge 9 and a second pressure gauge 10 are respectively installed on the output line 3, located upstream and downstream of the selective membrane module 4.

[0041] Specifically, the first pressure gauge 9 and the second pressure gauge 10 are used to detect the pressure on both sides of the diaphragm 44. When the raw material blocks the diaphragm 44, causing the gas flow rate to decrease, the pressure difference on both sides of the diaphragm 44 will change significantly. By observing the first pressure gauge 9 and the second pressure gauge 10 and calculating the pressure difference on both sides of the diaphragm 44, the blockage of the diaphragm 44 is monitored. When the pressure difference increases significantly, the diaphragm 44 is backflushed or replaced with a new diaphragm 44 to maintain the container.

[0042] like Figure 1 As shown, in some embodiments, an observation window 11 is provided on the container body 1 to observe the filling progress of the container body 1.

[0043] Specifically, since the container does not need to be vacuumed before filling, the pressure resistance requirements of the container are lower than those of traditional containers. Therefore, an observation window 11 can be provided on the container body 1. The observation window 11 is located on the top or side of the container body 1. The observation window 11 is used to observe whether the raw material in the container body 1 has reached its maximum capacity, thus avoiding overfilling that could cause the raw material to squeeze the diaphragm 44.

[0044] like Figure 1 As shown, in some embodiments, an inlet valve 12 is installed on the input line 2.

[0045] Specifically, before filling with raw materials, the inlet valve 12 and outlet valve 8 are opened, and the backflush valve 7 is closed. Protective gas is injected into the container body 1 through the inlet pipe 2. The air inside the container is compressed by the protective gas and discharged through the outlet pipe 3. After the air is discharged, raw materials are injected into the container body 1 through the inlet pipe 2. The protective gas inside the container is compressed by the raw materials and discharged through the outlet pipe 3, while the raw materials are intercepted by the diaphragm 44 and remain inside the container body 1. When backflush is required, the inlet valve 12 and backflush valve 7 are opened, and the outlet valve 8 is closed. Gas is introduced into the container body 1 through the backflush branch 6 to backflush the diaphragm 44 to improve the ventilation effect. If necessary, the first pressure cap 41 and the second pressure cap 42 are removed to replace the diaphragm 44 for maintenance.

[0046] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions described above based on the above description.

[0047] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A filling container, characterized in that, include: Container body (1), the container body (1) is used to contain powder or liquid raw materials; An input pipeline (2) is connected to the container body (1) and is used to fill raw materials into the container body (1); Output pipe (3), the output pipe (3) is connected to the container body; The output pipeline (3) is provided with a selective membrane assembly (4), which is configured to allow gas to pass through so that the gas is discharged along the output pipeline (3) and to intercept the raw material in the container body (1).

2. The filling container according to claim 1, characterized in that, The selective membrane assembly (4) includes a removable first cap (41) and a second cap (42) and a selectively permeable membrane installed between the first cap (41) and the second cap (42).

3. The filling container according to claim 2, characterized in that, The selective permeable membrane includes a membrane frame (43) installed between the first pressure cap (41) and the second pressure cap (42) and a membrane sheet (44) disposed on the membrane frame (43).

4. The filling container according to claim 3, characterized in that, A sealing strip is provided between the first pressure cap (41) and the second pressure cap (42) and the membrane skeleton (43).

5. The filling container according to claim 1, characterized in that, The output pipeline (3) is also provided with a gas check valve (5), which is located downstream of the selective membrane assembly (4) along the gas discharge direction and is configured to intercept external gas from entering the container body (1).

6. The filling container according to claim 1, characterized in that, It also includes a backflush branch (6) connected to the output line (3) and located downstream of the selective membrane module (4), and a backflush valve (7) is provided on the backflush branch (6).

7. The filling container according to claim 1, characterized in that, An outlet valve (8) is installed on the output line (3) downstream of the selective membrane module (4).

8. The filling container according to claim 1, characterized in that, The output pipeline (3) is equipped with a first pressure gauge (9) and a second pressure gauge (10) located upstream and downstream of the selective membrane module (4), respectively.

9. The filling container according to claim 1, characterized in that, The container body (1) is provided with an observation window (11) to observe the filling progress of the container body (1).

10. The filling container according to claim 1, characterized in that, An inlet valve (12) is installed on the input pipeline (2).

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