Combination valve and sterile tank with combination valve

Abstract

The utility model relates to a combination valve piece and a sterile tank with the combination valve piece, the combination valve piece comprises a first valve piece, a second valve piece and a third valve piece, the first valve piece is provided with a first valve port and a second valve port which can be connected in an on-off mode, and the first valve port is used for being connected with a material input pipeline; the second valve piece is provided with a third valve port and a fourth valve port which can be connected in an on-off mode, and the third valve port is used for being connected with a sterile tank for storing materials; the third valve piece is provided with a fifth valve port and a sixth valve port which can be connected in an on-off mode, the fifth valve port is used for being connected with a flushing pipeline, and the flushing pipeline is used for conveying sterile water or sterile compressed air; the second valve port is connected with the fourth valve port, and the sixth valve port is connected with the second valve port and the fourth valve port. The utility model solves the technical problem that the valve on the sterile tank may clamp particles in the material when the material is discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a combined valve and a sterile tank with the combined valve. Background Art

[0002] At present, in granulated jam and fiber-flavored yogurt products, the granulated jam part is mainly preliminarily sterilized by the jam supplier, and then subjected to secondary ultra-high temperature sterilization after being transported to the manufacturer. After that, it is stored in a jam sterile tank and quantitatively added to yogurt. However, the secondary ultra-high temperature sterilization will, to a certain extent, damage the color, flavor, hardness, elasticity and chewiness of the fruit particles in the granulated jam, etc., affecting the flavor and taste of the final product.

[0003] To solve the above problems, the newly adopted addition method is to use a mobile sterile tank. After the granulated jam part is sterilized once by the jam supplier, it is directly stored in the mobile sterile tank. After the mobile sterile tank is transported to the manufacturer, sterile discharging is carried out, and the granulated jam in the mobile sterile tank is transferred to the sterile tank of the manufacturer. Then, the granulated jam is quantitatively added to yogurt for filling and producing finished products. This method cancels the secondary sterilization step of the manufacturer, and can reduce the thermal damage of the secondary ultra-high temperature sterilization to the color and particle elasticity of the granulated jam. However, new problems are found in the process of transferring the granulated jam from the mobile sterile tank to the sterile tank of the manufacturer. As Figure 1 、 Figure 2 shown, a sterile bellows valve 10 is provided at the bottom of the mobile sterile tank, and the granulated jam stored in the sterile tank is discharged through the bellows valve 10. However, during the process of the bellows valve 10 opening to closing, particulate matter 20 will be clamped by the valve core 30 and remain between the valve core 30 and the inner wall of the valve body 40. After being clamped, without moving the valve core 30, the particulate matter 20 cannot be taken out or washed away. This not only may cause the bellows valve 10 to not be completely sealed and closed, affecting the sealing and sterility of the sterile tank, but also the exposed part of the clamped particulate matter 20 to the external environment may be contaminated by microorganisms, and the whole batch of products may be contaminated during the later discharging of the granulated jam, affecting the quality of the final product, bringing huge losses to the enterprise, and posing a safety hazard to consumers.

[0004] In view of the problem in the related technology that the valve on the sterile tank may clamp the particulate matter during the external discharge of the material, resulting in product contamination.

[0005] Therefore, based on years of experience and practice in the related industry, the inventor of the present invention proposes a combined valve and a sterile tank with the combined valve to overcome the defects of the prior art. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a combined valve member and a sterile tank with the combined valve member, so that impurities such as particulate matter clamped therein can be flushed out by sterile water or sterile compressed air. While ensuring aseptic treatment, it solves the problem that the particulate matter is clamped by the valve core and exposed, resulting in product contamination, and ensures product quality.

[0007] The purpose of the present utility model can be achieved by the following solutions:

[0008] The present utility model provides a combined valve member, and the combined valve member includes:

[0009] A first valve member, the first valve member has a first valve port and a second valve port that can be connected in a through - off manner, and the first valve port is used to be connected to a material input pipeline;

[0010] A second valve member, the second valve member has a third valve port and a fourth valve port that can be connected in a through - off manner, and the third valve port is used to be connected to a sterile tank for storing materials;

[0011] A third valve member, the third valve member has a fifth valve port and a sixth valve port that can be connected in a through - off manner, the fifth valve port is used to be connected to a flushing pipeline, and the flushing pipeline is used to convey sterile water or sterile compressed air;

[0012] The second valve port is connected to the fourth valve port, and the sixth valve port is respectively connected to the second valve port and the fourth valve port.

[0013] In a preferred embodiment of the present utility model, the combined valve member further includes a communication pipeline, the communication pipeline has a first port, a second port and a third port that are connected to each other, the first port is connected to the second valve port, the second port is connected to the fourth valve port, and the third port is connected to the sixth valve port.

[0014] In a preferred embodiment of the present utility model, the communication pipeline is a tee;

[0015] The first port, the second port and the third port of the tee are respectively directly connected to the second valve port, the fourth valve port and the sixth valve port;

[0016] Or, the first port, the second port and the third port of the tee are respectively connected to the second valve port, the fourth valve port and the sixth valve port through a section of pipeline.

[0017] In a preferred embodiment of the present utility model, the combined valve member has a material conveying state. When the combined valve member is in the material conveying state, the third valve member is closed, and both the first valve member and the second valve member are opened, so that the material flows through the first valve port, the interior of the first valve member, the second valve port, the first port, the connecting pipeline, the second port, and the fourth valve port in sequence and enters the second valve member, and then flows into the sterile tank through the third valve port.

[0018] In a preferred embodiment of the present utility model, the combined valve member has a first flushing state. When the combined valve member is in the first flushing state, the second valve member is closed, and both the first valve member and the third valve member are opened, so that the sterile water or sterile compressed air passes through the flushing pipeline, the fifth valve port, the interior of the third valve member, the sixth valve port, the third port, the connecting pipeline, the first port, and the second valve port in sequence and enters the first valve member and at least flushes between the first valve core in the first valve member and the inner wall of the first valve member. The sterile water or sterile compressed air carries the flushed particles and discharges them through the first valve port.

[0019] In a preferred embodiment of the present utility model, the combined valve member has a second flushing state. When the combined valve member is in the second flushing state, the first valve member is closed, and both the second valve member and the third valve member are opened, so that the sterile water or sterile compressed air passes through the flushing pipeline, the fifth valve port, the interior of the third valve member, the sixth valve port, the third port, the connecting pipeline, the second port, and the fourth valve port in sequence and enters the second valve member and at least flushes between the second valve core in the second valve member and the inner wall of the second valve member. The sterile water or sterile compressed air carries the flushed particles and discharges them through the third valve port.

[0020] In a preferred embodiment of the present utility model, both the first valve member and the second valve member are bellows valves.

[0021] In a preferred embodiment of the present utility model, the first valve member includes a valve body. The first valve port is located at the bottom of the valve body, and the second valve port is located on the side wall of the valve body. The valve body has a chamber therein and is respectively communicated with the first valve port and the second valve port. A first valve core is arranged in the chamber, and by adjusting the position of the first valve core, the conduction or cut-off between the first valve port and the second valve port is controlled.

[0022] In a preferred embodiment of the present utility model, the second valve member includes a valve body. The third valve port is located at the bottom of the valve body, and the fourth valve port is located on the side wall of the valve body. A chamber is provided inside the valve body and is respectively communicated with the third valve port and the fourth valve port. A second valve core is arranged in the chamber. By adjusting the position of the second valve core, the conduction or cutoff between the third valve port and the fourth valve port can be controlled.

[0023] In a preferred embodiment of the present utility model, the third valve member is a diaphragm valve.

[0024] The present utility model provides a sterile tank with a combined valve member. The sterile tank with a combined valve member includes:

[0025] A sterile tank body, and a liquid discharge port is arranged at the bottom of the sterile tank body or at a position close to the bottom.

[0026] The above-mentioned combined valve member, and the combined valve member is arranged at the liquid discharge port.

[0027] As described above, the characteristics and advantages of the combined valve member of the present utility model and the sterile tank with a combined valve member are:

[0028] The first valve member and the second valve member are arranged in series, that is, the second valve port of the first valve member is connected to the fourth valve port of the second valve member. The first valve port of the first valve member is connected to the material input pipeline, and the third valve port of the second valve member is connected to the sterile tank for storing materials. The material with particles is input from the material input pipeline, and then enters the sterile tank after passing through the first valve member and the second valve member in sequence, realizing the aseptic filling of the material.

[0029] A third valve member is arranged between the first valve member and the second valve member. The sixth valve port of the third valve member is respectively connected to the second valve port of the first valve member and the fourth valve port of the second valve member, and the fifth valve port of the third valve member is connected to the flushing pipeline. The flushing pipeline can be used to convey sterile water or sterile compressed air. After the material is conveyed into the sterile tank, the first valve member can be controlled to conduct, the second valve member can be controlled to cutoff, and at the same time, sterile water or sterile compressed air is conveyed into the flow path of the combined valve member through the flushing pipeline to realize the cleaning of the first valve member; the second valve member can also be controlled to conduct, the first valve member can be controlled to cutoff, and at the same time, sterile water or sterile compressed air is conveyed into the flow path of the combined valve member through the flushing pipeline to realize the cleaning of the second valve member. Thus, the particles clamped by the first valve member and / or the second valve member can be flushed and discharged completely, playing an aseptic protection role, effectively preventing the occurrence of the situation that microorganisms breed and the product is contaminated due to the exposure of the clamped particles, and ensuring the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them:

[0031] Figure 1 : It is a schematic structural diagram of a bellows valve in the prior art.

[0032] Figure 2 : It is Figure 1 A partial enlarged view of the position where the particulate matter is clamped in

[0033] Figure 3 : It is a schematic structural diagram of a combined valve member in an embodiment of the present invention.

[0034] Figure 4 : It is a schematic diagram of the combined valve member in the material conveying state in an embodiment of the present invention.

[0035] Figure 5 : It is a schematic diagram of the combined valve member in the first flushing state in an embodiment of the present invention.

[0036] Figure 6 : It is a schematic diagram of the combined valve member in the second flushing state in an embodiment of the present invention.

[0037] The reference numerals in the background art are:

[0038] 10. Bellows valve; 20. Particulate matter;

[0039] 30. Valve core; 40. Valve body.

[0040] The reference numerals in the present invention are:

[0041] 1. First valve member; 101. First valve port;

[0042] 102. Second valve port; 103. First valve core;

[0043] 2. Second valve member; 201. Third valve port;

[0044] 202. Fourth valve port; 203. Second valve core;

[0045] 3. Third valve member; 301. Fifth valve port;

[0046] 302. Sixth valve port; 4. Connecting pipeline;

[0047] 401. First port; 402. Second port;

[0048] 403. Third port. Detailed Embodiments

[0049] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed embodiments of the present invention will now be described with reference to the accompanying drawings.

[0050] Embodiment 1

[0051] As Figures 3 to 6 shown, the present utility model provides a combined valve member, which includes a first valve member 1, a second valve member 2 and a third valve member 3. The first valve member 1 has a first valve port 101 and a second valve port 102 that can be connected in a switchable manner. The first valve port 101 is used to be connected to a material input pipeline (not shown); the second valve member 2 has a third valve port 201 and a fourth valve port 202 that can be connected in a switchable manner. The third valve port 201 is used to be connected to a sterile tank (not shown) for storing the material; the third valve member 3 has a fifth valve port 301 and a sixth valve port 302 that can be connected in a switchable manner. The fifth valve port 301 is used to be connected to a flushing pipeline (not shown), and the flushing pipeline is used to convey sterile water or sterile compressed air; the second valve port 102 of the first valve member 1 is connected to the fourth valve port 202 of the second valve member 2, and the sixth valve port 302 of the third valve member 3 is respectively connected to the second valve port 102 of the first valve member 1 and the fourth valve port 202 of the second valve member 2.

[0052] In the present utility model, the first valve member 1 and the second valve member 2 are arranged in series, that is, the second valve port 102 of the first valve member 1 is connected to the fourth valve port 202 of the second valve member 2. The first valve port 101 of the first valve member 1 is connected to the material input pipeline, and the third valve port 201 of the second valve member 2 is connected to the sterile tank for storing the material. The material with particles is input from the material input pipeline, and then enters the sterile tank after passing through the first valve member 1 and the second valve member 2 in sequence, realizing the aseptic filling of the material. In addition, a third valve member 3 is arranged between the first valve member 1 and the second valve member 2. The sixth valve port 302 of the third valve member 3 is respectively connected to the second valve port 102 of the first valve member 1 and the fourth valve port 202 of the second valve member 2, and the fifth valve port 301 of the third valve member 3 is connected to the flushing pipeline. The flushing pipeline can be used to convey sterile water or sterile compressed air. After the material is conveyed into the sterile tank, the first valve member 1 can be controlled to conduct and the second valve member 2 can be controlled to cut off, and at the same time, sterile water or sterile compressed air is conveyed into the flow path of the combined valve member through the flushing pipeline to realize the cleaning of the first valve member 1; the second valve member 2 can also be controlled to conduct and the first valve member 1 can be controlled to cut off, and at the same time, sterile water or sterile compressed air is conveyed into the flow path of the combined valve member through the flushing pipeline to realize the cleaning of the second valve member 2, so that the particles clamped by the first valve member 1 and / or the second valve member 2 can be flushed and discharged cleanly, playing an aseptic protection role, effectively preventing the occurrence of microbial growth and product contamination caused by the exposure of the clamped particles, and ensuring the product quality.

[0053] In an optional embodiment of the present utility model, as Figures 3 to 6 shown, the material conveyed into the sterile tank can be, but is not limited to, jam containing fibers and / or particles. Among them, the particles can be, but are not limited to, pulp particles or cereal particles in the jam.

[0054] In an optional embodiment of the present invention, the combined valve component also includes a connecting pipeline 4, the connecting pipeline 4 has a first port 401, a second port 402 and a third port 403 that are connected to each other, the first port 401 is connected to the second valve port 102 of the first valve component 1, the second port 402 is connected to the fourth valve port 202 of the second valve component 2, and the third port 403 is connected to the sixth valve port 302 of the third valve component 3.

[0055] In a specific embodiment of the present invention, the connecting pipeline 4 can be a tee, and the first port 401 of the tee is directly connected to the second valve port 102 of the first valve component 1, the second port 402 of the tee is directly connected to the fourth valve port 202 of the second valve component 2, and the third port 403 of the tee is directly connected to the sixth valve port 302 of the third valve component 3, so that the sixth valve port 302 of the third valve component 3 is respectively connected to the second valve port 102 of the first valve component 1 and the fourth valve port 202 of the second valve component 2.

[0056] In another specific embodiment of the present invention, the connecting pipeline 4 can be a tee, and the tee is not directly connected to the first valve component 1, the second valve component 2 and the third valve component 3, but the first port 401 of the tee is connected to the second valve port 102 of the first valve component 1 through a section of pipeline, the second port 402 of the tee is connected to the fourth valve port 202 of the second valve component 2 through a section of pipeline, and the third port 403 of the tee is connected to the sixth valve port 302 of the third valve component 3 through a section of pipeline, so that the sixth valve port 302 of the third valve component 3 is connected to the second valve port 102 of the first valve component 1 and the fourth valve port 202 of the second valve component 2 respectively.

[0057] The combined valve member of the utility model has a material feeding state. When the combined valve member is in the material feeding state, Figure 4 As shown, the third valve member 3 is closed, and the first valve member 1 and the second valve member 2 are both connected, so that the material flows through the first valve port 101, the interior of the first valve member 1, the second valve port 102, the first port 401, the connecting pipeline 4, the second port 402 and the fourth valve port 202 in sequence into the second valve member 2, and then flows into the sterile tank through the third valve port 201. That is, in the process of conveying jam into the sterile tank, the third valve member 3 is closed, and the first valve member 1 and the second valve member 2 are both connected, and the jam can enter the sterile tank through the connected flow path and then pass through the first valve member and the second valve member 2 in sequence, thereby realizing the transfer of the jam into the sterile tank.

[0058] The combined valve member of the utility model has a first flushing state. When the combined valve member is in the first flushing state, Figure 5As shown, the second valve member 2 is shut off, and the first valve member 1 and the third valve member 3 are both conducting, so that sterile water or sterile compressed air sequentially passes through the flushing pipeline, the fifth valve port 301, the interior of the third valve member 3, the sixth valve port 302, the third port 403, the connecting pipeline 4, the first port 401 and the second valve port 102 and enters into the first valve member 1, and at least flushes between the first valve core 103 in the first valve member 1 and the inner wall of the first valve member 1. The sterile water or sterile compressed air carries the particulate matter washed off and is discharged through the first valve port 101 of the first valve member 1. That is: after the delivery of jam into the sterile tank is completed, first shut off the second valve member 2, and then open the third valve member 3 (the first valve member 1 remains in the conducting state), and send sterile water or sterile compressed air into the conducting flow path through the third valve member 3 for flushing. During this process, the residual jam (including fibers, particulate matter, etc.) at the first valve member 1 will be flushed out. After flushing for a certain period of time, control the third valve member 3 to shut off and stop the supply of sterile water or sterile compressed air; then shut off the first valve member 1. At this time, whether the second valve member 2 is in the shut-off or conducting state will not damage the sterile environment inside the combined valve member, and the first valve member 1 will not clamp any fibers or particulate matter, and there will be no product quality problems caused by the exposed part of the clamped particulate matter or fiber being contaminated.

[0059] The combined valve member of the present utility model may also have a second flushing state. When the combined valve member is in the second flushing state, as Figure 6 shown, the first valve member 1 is shut off, and the second valve member 2 and the third valve member 3 are both conducting, so that sterile water or sterile compressed air sequentially passes through the flushing pipeline, the fifth valve port 301, the interior of the third valve member 3, the sixth valve port 302, the third port 403, the connecting pipeline 4, the second port 402 and the fourth valve port 202 and enters into the second valve member 2, and at least flushes between the second valve core 203 in the second valve member 2 and the inner wall of the second valve member 2. The sterile water or sterile compressed air carries the particulate matter washed off and is discharged through the third valve port 201 of the second valve member 2. That is: after the combined valve member has undergone the first flushing state, it can enter the second flushing state. Shut off the first valve member 1, and open the third valve member 3 (the second valve member 2 remains in the conducting state), and send sterile water or sterile compressed air into the conducting flow path through the third valve member 3 for flushing. During this process, the residual jam (including fibers, particulate matter, etc.) at the second valve member 2 will be flushed out. After flushing for a certain period of time, control the third valve member 3 to shut off and stop the supply of sterile water or sterile compressed air; then shut off the second valve member 2. At this time, whether the first valve member 1 is in the shut-off or conducting state will not damage the sterile environment inside the combined valve member, and the second valve member 2 will not clamp any fibers or particulate matter, and there will be no product quality problems caused by the exposed part of the clamped particulate matter or fiber being contaminated.

[0060] In an alternative embodiment of the present utility model, the first valve member 1 may be, but is not limited to, a bellows valve. Specifically, the first valve member 1 includes a valve body. The first valve port 101 is located at the bottom of the valve body, and the second valve port 102 is located on the side wall of the valve body. The valve body has a chamber that communicates with the first valve port 101 and the second valve port 102 respectively. A first valve core 103 that can move up and down is arranged in the chamber. When the first valve core 103 moves up to a preset position, the first valve port 101 and the second valve port 102 are conducted; when the first valve core 103 moves down between the first valve port 101 and the second valve port 102, the first valve core 103 can block between the first valve port 101 and the second valve port 102, and the first valve port 101 and the second valve port 102 are shut off. During the actual working process, by adjusting the position of the first valve core 103, the conduction or shut-off of the first valve port 101 and the second valve port 102 is controlled. Before work, the bellows valve is sterilized to make it a sterile bellows valve.

[0061] In an alternative embodiment of the present utility model, the second valve member 2 may be, but is not limited to, a bellows valve. The second valve member 2 has the same structure as the first valve member 1. Specifically, the second valve member 2 includes a valve body. The third valve port 201 is located at the bottom of the valve body, and the fourth valve port 202 is located on the side wall of the valve body. The valve body has a chamber that communicates with the third valve port 201 and the fourth valve port 202 respectively. A second valve core 203 that can move up and down is arranged in the chamber. When the second valve core 203 moves up to a preset position, the third valve port 201 and the fourth valve port 202 are conducted; when the second valve core 203 moves down between the third valve port 201 and the fourth valve port 202, the second valve core 203 can block between the third valve port 201 and the fourth valve port 202, and the third valve port 201 and the fourth valve port 202 are shut off. During the actual working process, by adjusting the position of the second valve core 203, the conduction or shut-off of the third valve port 201 and the fourth valve port 202 is controlled. Before work, the bellows valve is sterilized to make it a sterile bellows valve.

[0062] In an alternative embodiment of the present utility model, the third valve member 3 may be, but is not limited to, a diaphragm valve. Before work, the diaphragm valve is sterilized to make it a sterile diaphragm valve.

[0063] In the present utility model, the valve members selected in the combined valve member and the material of the pipeline both meet the food hygiene design. The metal materials of the components or positions in direct contact with food all adopt 304 stainless steel or 316 stainless steel, and the sealing materials in the valve members and pipelines all adopt one of EPDM (ethylene propylene rubber), silica gel or Teflon, which can greatly improve the hygiene and safety of food.

[0064] In the present utility model, the on-off states of the first valve member 1, the second valve member 2, and the third valve member 3 can be fully automatically controlled by a controller (PLC), greatly improving the automation, stability, and reliability.

[0065] The characteristics and advantages of the combined valve member of the present utility model are as follows:

[0066] First, in this combined valve member, the first valve member 1 and the second valve member 2 are arranged in series. The material with particles is input through the material input pipeline, and then enters the sterile tank after passing through the first valve member 1 and the second valve member 2 in sequence, realizing the sterile filling of the material.

[0067] Second, in this combined valve member, after the filling of the sterile tank is completed, the first valve member 1, the second valve member 2, and the flow path can be flushed with sterile water or sterile compressed air. The particles clamped by the first valve member 1 and / or the second valve member 2 can be flushed out and discharged completely, playing a role in sterile protection, effectively preventing the occurrence of microbial growth and product contamination caused by the exposure of clamped particles, and ensuring product quality.

[0068] Third, in this combined valve member, before operation, the first valve member 1, the second valve member 2, and the third valve member 3 are all in a sterile state to ensure the sterility of the combined valve member, guarantee product quality, and improve food safety.

[0069] Embodiment 2

[0070] The present utility model provides a sterile tank with a combined valve member. The sterile tank with a combined valve member includes a sterile tank body and the above-mentioned combined valve member. A liquid discharge port is provided at the bottom or a position near the bottom of the sterile tank body, and the combined valve member is arranged at the liquid discharge port.

[0071] The sterile tank with a combined valve member of the present utility model has the same characteristics and advantages as the above-mentioned combined valve member, which will not be elaborated here.

[0072] The above are only the schematic specific embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present utility model shall fall within the scope of protection of the present utility model.

Claims

1. A combined valve component, characterized in that: The combined valve element comprises: A first valve member, the first valve member having a first valve port and a second valve port which can be connected and disconnected, the first valve port being used to be connected to a material input pipeline; A second valve member, wherein the second valve member has a third valve port and a fourth valve port which are connected and can be opened and closed, and the third valve port is used to be connected to a sterile tank storing materials; A third valve member, the third valve member having a fifth valve port and a sixth valve port which can be connected and disconnected, the fifth valve port being used to be connected to a flushing pipeline, and the flushing pipeline being used to transport sterile water or sterile compressed air; The second valve port is connected to the fourth valve port, and the sixth valve port is connected to the second valve port and the fourth valve port respectively.

2. The combined valve member according to claim 1, characterized in that: The combined valve element further comprises a connecting pipeline having a first port, a second port and a third port which are connected to each other. The first port is connected to the second valve port, the second port is connected to the fourth valve port, and the third port is connected to the sixth valve port.

3. The combined valve member according to claim 2, characterized in that: The connecting pipeline is a tee; The first port, the second port and the third port of the three-way valve are directly connected to the second valve port, the fourth valve port and the sixth valve port respectively; Alternatively, the first port, the second port and the third port of the three-way connection are respectively connected to the second valve port, the fourth valve port and the sixth valve port through a section of pipeline.

4. The combined valve member according to claim 2, characterized in that: The combination valve component has a material conveying state. When the combination valve component is in the material conveying state, the third valve component is closed, and the first valve component and the second valve component are both turned on, so that the material flows through the first valve port, the interior of the first valve component, the second valve port, the first port, the connecting pipeline, the second port and the fourth valve port in sequence into the second valve component, and then flows into the sterile tank through the third valve port.

5. The combined valve member according to claim 2, characterized in that: The combined valve component has a first flushing state. When the combined valve component is in the first flushing state, the second valve component is closed, and the first valve component and the third valve component are both connected, so that the sterile water or the sterile compressed air passes through the flushing pipeline, the fifth valve port, the interior of the third valve component, the sixth valve port, the third port, the connecting pipeline, the first port and the second valve port in sequence into the first valve component and at least flushes the first valve core in the first valve component and the inner wall of the first valve component, and the sterile water or the sterile compressed air carries the flushed particles and is discharged through the first valve port.

6. The combined valve member according to claim 2, characterized in that: The combined valve component has a second flushing state. When the combined valve component is in the second flushing state, the first valve component is closed, and the second valve component and the third valve component are both connected, so that the sterile water or the sterile compressed air passes through the flushing pipeline, the fifth valve port, the interior of the third valve component, the sixth valve port, the third port, the connecting pipeline, the second port and the fourth valve port in sequence into the second valve component and at least flushes the space between the second valve core in the second valve component and the inner wall of the second valve component, and the sterile water or the sterile compressed air carries the flushed particles and is discharged through the third valve port.

7. The combined valve member according to any one of claims 1 to 6, characterized in that: The first valve component and the second valve component are both bellows valves.

8. The combined valve member according to claim 7, characterized in that: The first valve component includes a valve body, the first valve port is located at the bottom of the valve body, the second valve port is located on the side wall of the valve body, a chamber is provided in the valve body and is communicated with the first valve port and the second valve port respectively, a first valve core is provided in the chamber, and the first valve port and the second valve port can be controlled to be connected or disconnected by adjusting the position of the first valve core.

9. The combined valve member according to claim 7, characterized in that: The second valve component includes a valve body, the third valve port is located at the bottom of the valve body, the fourth valve port is located on the side wall of the valve body, the valve body has a chamber and is communicated with the third valve port and the fourth valve port respectively, a second valve core is arranged in the chamber, and the third valve port and the fourth valve port can be controlled to be connected or disconnected by adjusting the position of the second valve core.

10. The combined valve member according to any one of claims 1 to 6, characterized in that: The third valve component is a diaphragm valve.

11. A sterile tank with a combined valve member, characterized in that: The aseptic tank with combined valve member comprises: A sterile tank body, wherein a drain port is provided at the bottom or near the bottom of the sterile tank body; The combined valve component according to any one of claims 1 to 10, wherein the combined valve component is arranged at the drain port.

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