Cylindrical container liquid flow control device and control method thereof

Abstract

The present application relates to the technical fields of control valve block, and especially relates to a cylindrical container liquid flow control device and a control method thereof, the control device comprising: a valve block, a circumferential diaphragm valve, an end face diaphragm valve, a circumferential connecting port, a cylindrical container, a first container and a second container; the outer surface of the valve block is provided with a circumferential control cavity and an end face control cavity; the circumferential connecting port is respectively communicated with the upper opening and the lower opening of the cylindrical container, the first container and the second container; the process hole network inside the valve block is communicated with all the circumferential control cavities, the circumferential connecting ports and the end face control cavities; the flow direction and the on-off of the fluid in the process hole network are controlled by selectively opening and closing the circumferential diaphragm valve and the end face diaphragm valve; the present application has the advantages that the circumferential diaphragm valve, the end face diaphragm valve and the circumferential connecting port are integrated on the valve block, and they are communicated with each other through the process hole network; the overall structure of the valve block is more compact and simple while meeting the process requirements of the fluid flow direction.

Description

Technical Field

[0001] This invention relates to the field of control valve block technology, and in particular to a liquid flow control device and control method for a cylindrical container. Background Technology

[0002] In the biopharmaceutical field, it is often necessary to fill column containers with gel packing materials and use chromatography to allow drugs containing impurities or requiring purification to flow through the column container. In this way, different components in the drug can be separated in stages or regions, thereby achieving purification and impurity removal. The chromatography process mainly involves the fluid automatically flowing into the column container according to a preset process flow under the action of a chromatography pump. The column container has openings at the top and bottom, allowing the fluid to flow in from the top and out from the bottom, or vice versa. The condition where the fluid flows in from the top and out from the bottom is generally called forward chromatography, while the condition where the fluid flows in from the bottom and out from the top is generally called backwashing. Sometimes, it is also necessary for the fluid to bypass the column container and be discharged directly from the pipeline outlet.

[0003] However, current methods for controlling fluid flow in cylindrical containers have many drawbacks. They typically require multiple valves, which are connected at the site using various pipes and fittings according to the process requirements. Fluid flow is controlled by opening and closing these valves. This valve and piping installation is not only complex and labor-intensive, but also prone to creating leak points. Furthermore, the use of numerous pipes and fittings leads to longer pipelines and increased residual fluid within the pipes.

[0004] Chinese patent application CN114935023A, published on August 23, 2022, entitled "A Valve Assembly Device Based on a Hole Component," discloses a valve assembly device based on a hole component. The device includes a hole component body and multiple valve structures disposed on the hole component body. Each valve structure includes an internal flow channel disposed within the hole component body and a valve assembly mounted on the hole component body. Although this design reduces the use of pipe fittings through hole integration, its integration method is merely a simple combination of valves, failing to effectively solve the problem of active control of fluid direction. Therefore, it is difficult to meet the fluid control requirements of cylindrical containers under various operating conditions such as forward, reverse, and bypass. Summary of the Invention

[0005] In view of this, the present invention aims to provide a liquid flow direction control device and control method for a cylindrical container. Multiple diaphragm valves are installed on a valve block, and a network of process channels is set in the valve block so that the diaphragm valves and channels, and channels and channels are connected in a certain logical sequence. In use, the control device is connected to the circuit of the cylindrical container as a whole. By controlling the opening or closing of different combinations of diaphragm valves, the fluid can flow through different channels in the valve block through the circumferential connection port, thereby controlling the direction of fluid inflow into the cylindrical container or direct outflow.

[0006] To achieve the above objectives, the technical solution of this invention is implemented as follows: A liquid flow direction control device for a cylindrical container includes: a valve block, multiple circumferential diaphragm valves, an end-face diaphragm valve, multiple circumferential connection ports, a cylindrical container, a first container, and a second container; the outer surface of the valve block is provided with circumferential control chambers corresponding to each circumferential diaphragm valve and end-face control chambers adapted to the end-face diaphragm valves; multiple circumferential connection ports and multiple circumferential diaphragm valves are alternately arranged on the outer circumferential surface of the valve block; the end-face diaphragm valves are disposed on the end face of one end of the valve block; multiple circumferential connection ports are respectively connected to the upper and lower openings of the cylindrical container, the first container, and the second container; the first container is used to store the fluid input into the cylindrical container, and the second container is used to store the fluid processed by the cylindrical container; the valve block is provided with a process channel network inside, connecting all circumferential control chambers, circumferential connection ports, and end-face control chambers; by selectively opening and closing the circumferential diaphragm valves and end-face diaphragm valves, the flow direction and on / off state of the fluid in the process channel network are controlled.

[0007] Furthermore, the valve block is an octagonal prism, and there are four circumferential diaphragm valves: a first circumferential diaphragm valve, a second circumferential diaphragm valve, a third circumferential diaphragm valve, and a fourth circumferential diaphragm valve; there are also four circumferential connection ports: a first circumferential connection port, a second circumferential connection port, a third circumferential connection port, and a fourth circumferential connection port.

[0008] Furthermore, the first circumferential diaphragm valve and the third circumferential diaphragm valve are arranged opposite each other, and the second circumferential diaphragm valve and the fourth circumferential diaphragm valve are arranged opposite each other; the first circumferential connection port and the third circumferential connection port are arranged opposite each other, and the second circumferential connection port and the fourth circumferential connection port are arranged opposite each other; wherein, the second circumferential connection port is connected to the upper port of the column container; the fourth circumferential connection port is connected to the lower port of the column container; the first circumferential connection port is connected to the first container; and the third circumferential connection port is connected to the second container.

[0009] Furthermore, there are four circumferential control chambers, namely the first circumferential control chamber, the second circumferential control chamber, the third circumferential control chamber, and the fourth circumferential control chamber; wherein, the first circumferential control chamber corresponds to the first circumferential diaphragm valve, the second circumferential control chamber corresponds to the second circumferential diaphragm valve, the third circumferential control chamber corresponds to the third circumferential diaphragm valve, and the fourth circumferential control chamber corresponds to the fourth circumferential diaphragm valve.

[0010] Furthermore, the process channel network includes a first process hole group, a second process hole group, a third process hole group, a fourth process hole group, and a fifth process hole group; the first process hole group is used to connect the first circumferential control cavity, the second circumferential control cavity, and the first circumferential connection port; the second process hole group is used to connect the second circumferential control cavity, the third circumferential control cavity, and the second circumferential connection port; the third process hole group is used to connect the third circumferential control cavity, the fourth circumferential control cavity, and the third circumferential connection port; the fourth process hole group is used to connect the first circumferential control cavity, the fourth circumferential control cavity, and the fourth circumferential connection port; the fifth process hole group is used to connect the end face control cavity to the first circumferential connection port and the third circumferential connection port respectively; the first process hole group, the second process hole group, the third process hole group, and the fourth process hole group are all located within the same cross-section of the valve block; the cross-section has a first center line and a second center line that are perpendicular to each other; the first process hole group and the third process hole group have the same structure and are symmetrically arranged along the first center line; the second process hole group and the fourth process hole group have the same structure and are symmetrically arranged along the second center line.

[0011] Furthermore, the first process hole group includes a first channel, a second channel, and a third channel; the second process hole group includes a fourth channel and a fifth channel; the third process hole group includes a sixth channel, a seventh channel, and an eighth channel; and the fourth process hole group includes a ninth channel and a tenth channel. The first, second, and third channels are respectively connected to a first circumferential control cavity, a first circumferential connection port, and a second circumferential control cavity. The first, second, and third channels form a first converging connection port near the center of the valve block. The fourth channel connects the second and third circumferential control cavities. The fifth channel connects the second circumferential connection port and the fourth channel. The sixth, seventh, and eighth channels are respectively connected to the third circumferential control cavity, the third circumferential connection port, and the fourth circumferential control cavity. The sixth, seventh, and eighth channels form a second converging connection port near the center of the valve block. The ninth channel connects the fourth circumferential control cavity and the first circumferential control cavity. The tenth channel connects the fourth circumferential connection port and the ninth channel.

[0012] Furthermore, the fifth process hole group includes an eleventh channel and a twelfth channel. The eleventh channel connects the end face control cavity and the first collection and connection port, and then connects to the first channel, the second channel and the third channel; the twelfth channel connects the end face control cavity and the second collection and connection port, and then connects to the sixth channel, the seventh channel and the eighth channel.

[0013] Furthermore, the diameters of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth channels are all equal.

[0014] A control method for a cylindrical container liquid flow direction control device, implemented using the aforementioned cylindrical container liquid flow direction control device, includes the following steps:

[0015] When the second circumferential diaphragm valve, the fourth circumferential diaphragm valve, and the end face diaphragm valve are in the closed state, sealing the corresponding second circumferential control chamber, the fourth circumferential control chamber, and the end face control chamber, and the first circumferential diaphragm valve and the third circumferential diaphragm valve are in the open state, the fluid delivery path is as follows:

[0016] Fluid enters from the first container through the first circumferential connection port; sequentially from the second channel, the first channel, the first circumferential control chamber, the ninth channel, and the tenth channel through the fourth circumferential connection port into the upper opening of the cylindrical container; after flowing out from the lower opening of the cylindrical container, it sequentially passes through the second circumferential connection port, the fifth channel, the fourth channel, the third circumferential control chamber, the sixth channel, and the seventh channel, and finally flows into the second container through the third circumferential connection port;

[0017] When the first circumferential diaphragm valve, the third circumferential diaphragm valve, and the end face diaphragm valve are in the closed state, sealing the corresponding first circumferential control chamber, the third circumferential control chamber, and the end face control chamber, and the second circumferential diaphragm valve and the fourth circumferential diaphragm valve are in the open state, the fluid delivery path is as follows:

[0018] Fluid enters from the first container through the first circumferential connection port; it passes sequentially through the second channel, the third channel, the second circumferential control cavity, the fourth channel, and the fifth channel, and enters the lower opening of the cylindrical container through the second circumferential connection port. After flowing out from the upper opening of the cylindrical container, it passes sequentially through the fourth connection end, the tenth channel, the ninth channel, the fourth circumferential control cavity, the eighth channel, and the seventh channel, and finally flows into the second container through the third circumferential connection port.

[0019] When the first, second, third, and fourth circumferential diaphragm valves are closed, sealing the corresponding first, second, third, and fourth circumferential control chambers, and the end-face diaphragm valves are open, the fluid transport path is as follows:

[0020] Fluid enters from the first container through the first circumferential connection port; after passing through the second channel, the eleventh channel, the end face control cavity, the twelfth channel and the seventh channel in sequence, it finally flows into the second container through the third circumferential connection port.

[0021] The present invention can achieve the following beneficial effects:

[0022] 1) The control device of this invention, through the circumferential control chamber, end-face control chamber, and internal process channel network on the valve block, in conjunction with the circumferential diaphragm valve and the end-face diaphragm valve, achieves control over the direction of fluid flowing into the cylindrical container, and the fluid can flow out without passing through the cylindrical container. This provides a new solution for better application of cylindrical containers in the biopharmaceutical field.

[0023] 2) This invention integrates a circumferential diaphragm valve, an end-face diaphragm valve, and a circumferential connection port onto a valve block, and interconnects them through a network of process channels within the valve block. This design satisfies the process requirements for fluid flow direction while making the overall structure of the valve block more compact and simple.

[0024] 3) The control device of this invention has a high degree of integration, a simple installation and construction process, and is easy to operate. It reduces the number of complex valves and pipelines, and reduces the amount of pipes and fittings used, thereby reducing the risk of blockage, leakage, pipe cracks, etc. caused by poor installation quality. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the control device provided according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the fluid delivery path when the second circumferential diaphragm valve, the fourth circumferential diaphragm valve, and the end face diaphragm valve in the circumferential diaphragm valve close the second circumferential control chamber, the fourth circumferential control chamber, and the end face control chamber, according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the fluid transport path provided by an embodiment of the present invention, showing the fluid transport path when the first circumferential diaphragm valve, the third circumferential diaphragm valve, and the end face diaphragm valve in the circumferential diaphragm valve close the first circumferential control chamber, the third circumferential control chamber, and the end face control chamber.

[0029] Figure 4 This is a schematic diagram of the structure of the first process hole group, the second process hole group, the third process hole group, and the fourth process hole group provided according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the fifth process hole group provided in an embodiment of the present invention.

[0031] The reference numerals in the accompanying drawings include: 100, control device; 101, valve block; 102, cylindrical container; 103, first container; 104, second container; 105, first circumferential diaphragm valve; 106, second circumferential diaphragm valve; 107, third circumferential diaphragm valve; 108, fourth circumferential diaphragm valve; 109, first circumferential connection port; 110, second circumferential connection port; 111, third circumferential connection port; 112, fourth circumferential connection port; 113, end face diaphragm valve; 114. 115. First circumferential control cavity; 116. Second circumferential control cavity; 117. Third circumferential control cavity; 118. Fourth circumferential control cavity; 119. End face control cavity; 120. First channel; 121. Second channel; 122. Third channel; 123. Fourth channel; 124. Fifth channel; 125. Sixth channel; 126. Seventh channel; 127. Eighth channel; 128. Ninth channel; 129. Tenth channel; 130. Eleventh channel; 140. Twelfth channel. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not constitute a limitation thereof.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention 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 on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The invention will now be described in detail with reference to specific embodiments.

[0037] like Figures 1 to 5 As shown in the figure, an embodiment of the present invention provides a liquid flow control device for a cylindrical container, comprising: a control device 100 including a valve block 101, a plurality of circumferential diaphragm valves, an end face diaphragm valve 113, a plurality of circumferential connection ports, a cylindrical container 102, a first container 103, and a second container 104. The outer circumferential surface of the valve block 101 is provided with a circumferential control cavity adapted to each circumferential diaphragm valve and an end face control cavity 118 adapted to the end face diaphragm valve 113.

[0038] Multiple circumferential diaphragm valves are spaced apart on the outer circumferential surface of the valve block 101, and an end-face diaphragm valve 113 is disposed on the end face of the valve block 101. The axis of the end-face diaphragm valve 113 coincides with the axis of the valve block 101.

[0039] Multiple circumferential connection ports and multiple circumferential diaphragm valves are alternately arranged on the outer circumferential surface of valve block 101. The circumferential connection ports are respectively connected to the upper and lower openings of cylindrical container 102, first container 103 and second container 104. First container 103 is used to store fluid input into cylindrical container 102, and second container 104 is used to store fluid processed by cylindrical container 102.

[0040] The valve block 101 has a process channel network inside, connecting all circumferential diaphragm valves, circumferential connection ports, and end face diaphragm valves 113. By selectively opening and closing the circumferential diaphragm valves and end face diaphragm valves 113, the flow direction and on / off state of the fluid in the first container 103 within the process channel network inside the valve block 101 are controlled.

[0041] In this embodiment, both the diaphragm valve and the end-face diaphragm valve 113 are pneumatic diaphragm valves. The opening and closing of the pneumatic diaphragm valve causes the diaphragm of the diaphragm valve to open or retract, thereby blocking or opening the control chamber and controlling the connection between the channels in the process channel network.

[0042] The circumferential diaphragm valve, the end-face diaphragm valve 113, and the circumferential connection port are integrated on the valve block 101 and interconnected through a network of process channels within the valve block 101. This design achieves a more compact and streamlined overall structure for the valve block 101 while meeting the process requirements for fluid flow direction.

[0043] The valve block 101 is an octagonal prism with four circumferential diaphragm valves and four circumferential connection ports. The circumferential diaphragm valves and circumferential connection ports are alternately arranged on the eight facets of the valve block 101, with one circumferential diaphragm valve or one circumferential connection port installed on each facet.

[0044] There are four circumferential diaphragm valves: a first circumferential diaphragm valve 105, a second circumferential diaphragm valve 106, a third circumferential diaphragm valve 107, and a fourth circumferential diaphragm valve 108. The first circumferential diaphragm valve 105 and the third circumferential diaphragm valve 107 are arranged opposite each other, and the second circumferential diaphragm valve 106 and the fourth circumferential diaphragm valve 108 are arranged opposite each other.

[0045] There are four circumferential connection ports: a first circumferential connection port 109, a second circumferential connection port 110, a third circumferential connection port 111, and a fourth circumferential connection port 112. The first circumferential connection port 109 and the third circumferential connection port 111 are positioned opposite each other, and the second circumferential connection port 110 and the fourth circumferential connection port 112 are positioned opposite each other. The first circumferential connection port 109 is connected to the first container 103 via a pipe, and the second circumferential connection port 110 is connected to the lower opening of the cylindrical container 102 via a pipe. The fourth circumferential connection port 112 is connected to the upper opening of the cylindrical container 102 via a pipe, and the third circumferential connection port 111 is connected to the second container 104 via a pipe.

[0046] There are four circumferential control chambers: a first circumferential control chamber 114, a second circumferential control chamber 115, a third circumferential control chamber 116, and a fourth circumferential control chamber 117. Specifically, the first circumferential control chamber 114 corresponds to the first circumferential diaphragm valve 105, the second circumferential control chamber 115 corresponds to the second circumferential diaphragm valve 106, the third circumferential control chamber 116 corresponds to the third circumferential diaphragm valve 107, and the fourth circumferential control chamber 117 corresponds to the fourth circumferential diaphragm valve 108.

[0047] The first circumferential control chamber 114, the second circumferential control chamber 115, the third circumferential control chamber 116, the fourth circumferential control chamber 117, and the end face control chamber 118 are all circular cross-section cavities, the dimensions of which match the diaphragm of the diaphragm valve. When the diaphragm valve is in the closed state, the diaphragm is pressed down, which closes the corresponding control chamber; when the diaphragm valve is in the open state, the diaphragm retracts, and the corresponding control chamber is opened.

[0048] The process channel network includes a first process hole group, a second process hole group, a third process hole group, a fourth process hole group, and a fifth process hole group. The first process hole group connects the first circumferential control cavity 114, the second circumferential control cavity 115, and the first circumferential connection port 109. The second process hole group connects the second circumferential control cavity 115, the third circumferential control cavity 116, and the second circumferential connection port 110. The third process hole group connects the third circumferential control cavity 116, the fourth circumferential control cavity 117, and the third circumferential connection port 111. The fourth process hole group connects the first circumferential control cavity 114, the fourth circumferential control cavity 117, and the fourth circumferential connection port 112. The fifth process hole group connects the end face control cavity 118 to both the first circumferential connection port 109 and the third circumferential connection port 111.

[0049] The first, second, third, and fourth process hole groups are all located within the same cross-section of the valve block 101. The cross-section has a first centerline and a second centerline that are perpendicular to each other. The first and third process hole groups have identical structures and are symmetrically arranged along the first centerline. The second and fourth process hole groups have identical structures and are symmetrically arranged along the second centerline. This symmetrical layout balances the processing stress of the valve block 101, reducing the risk of deformation. Simultaneously, the biaxially symmetrical arrangement allows the first, second, third, and fourth process hole groups to form a balanced fluid channel, ensuring uniform pressure and flow distribution during fluid flow and improving the operational stability of the valve block 101.

[0050] Specifically, the first process hole group includes the first channel 119, the second channel 120, and the third channel 121. The second process hole group includes the fourth channel 122 and the fifth channel 123. The third process hole group includes the sixth channel 124, the seventh channel 125, and the eighth channel 126. The fourth process hole group includes the ninth channel 127 and the tenth channel 128.

[0051] The first channel 119, the second channel 120, and the third channel 121 are respectively connected to the first circumferential control cavity 114, the first circumferential connection port 109, and the second circumferential control cavity 115. The first channel 119, the second channel 120, and the third channel 121 form a first collecting and communicating port near the center of the valve block 101. The minimum distance between the edge of the first collecting and communicating port and the center of the cross-section must be controlled within the range of 1.5mm to 3.5mm to ensure the strength of the valve block 101 and the performance of the first process hole group.

[0052] The fourth channel 122 connects the second circumferential control cavity 115 and the third circumferential control cavity 116. The fifth channel 123 connects the second circumferential connection port 110 and the fourth channel 122.

[0053] The sixth channel 124, the seventh channel 125, and the eighth channel 126 are respectively connected to the third circumferential control cavity 116, the third circumferential connection port 111, and the fourth circumferential control cavity 117. The sixth channel 124, the seventh channel 125, and the eighth channel 126 form a second converging connection port near the center of the valve block 101.

[0054] The ninth channel 127 connects the fourth circumferential control cavity 117 and the first circumferential control cavity 114. The tenth channel 128 connects the fourth circumferential connection port 112 and the ninth channel 127.

[0055] The fifth process hole group includes an eleventh channel 129 and a twelfth channel 130. The eleventh channel 129 connects to the end face control cavity 118 and the first collection and communication port, and then connects to the first channel 119, the second channel 120, and the third channel 121. The twelfth channel 130 connects to the end face control cavity 118 and the second collection and communication port, and then connects to the sixth channel 124, the seventh channel 125, and the eighth channel 126.

[0056] The diameters of the first channel 119, the second channel 120, the third channel 121, the fourth channel 122, the fifth channel 123, the sixth channel 124, the seventh channel 125, the eighth channel 126, the ninth channel 127, the tenth channel 128, the eleventh channel 129, and the twelfth channel 13.

[0057] All orifices have the same diameter. Having all orifices of equal diameter ensures a more uniform distribution of fluid velocity and flow rate, reducing fluid turbulence and pressure loss caused by differences in orifice diameter. It also simplifies maintenance and cleaning, allowing the use of identical tools and reducing maintenance costs.

[0058] A control method for a cylindrical container liquid flow direction control device, implemented using the aforementioned cylindrical container liquid flow direction control device, includes the following steps:

[0059] When the second circumferential diaphragm valve 106, the fourth circumferential diaphragm valve 108, and the end face diaphragm valve 113 are closed, sealing the corresponding second circumferential control chamber 115, fourth circumferential control chamber 117, and end face control chamber 118, and the first circumferential diaphragm valve 105 and the third circumferential diaphragm valve 107 are open, the fluid transport path is as follows:

[0060] like Figure 2As shown, fluid enters from the first container 103 through the first circumferential connection port 109, and sequentially enters the upper opening of the cylindrical container 102 through the second channel 120, the first channel 119, the first circumferential control chamber 114, the ninth channel 127 and the tenth channel 128 through the fourth circumferential connection port 112. After flowing out from the lower opening of the cylindrical container 102, it sequentially passes through the second circumferential connection port 110, the fifth channel 123, the fourth channel 122, the third circumferential control chamber 116, the sixth channel 124 and the seventh channel 125, and finally flows into the second container 104 through the third circumferential connection port 111.

[0061] In this transport path, liquid flows in from the upper opening and flows out from the lower opening of the cylindrical container 102.

[0062] When the first circumferential diaphragm valve 105, the third circumferential diaphragm valve 107, and the end face diaphragm valve 113 are closed, sealing the corresponding first circumferential control chamber 114, third circumferential control chamber 116, and end face control chamber 118, and the second circumferential diaphragm valve 106 and the fourth circumferential diaphragm valve 108 are open, the fluid transport path is as follows:

[0063] like Figure 3 As shown, fluid enters from the first container 103 through the first circumferential connection port 109; it sequentially passes through the second channel 120, the third channel 121, the second circumferential control cavity 115, the fourth channel 122, and the fifth channel 123, and enters the lower opening of the cylindrical container 102 through the second circumferential connection port 110. After flowing out from the upper opening of the cylindrical container 102, it sequentially passes through the fourth connection end 112, the tenth channel 128, the ninth channel 127, the fourth circumferential control cavity 117, the eighth channel 126, and the seventh channel 125, and finally flows into the second container 104 through the third circumferential connection port 111.

[0064] In this transport path, liquid flows in from the bottom of the cylindrical container 102 and flows out from the top.

[0065] When the first circumferential diaphragm valve 105, the second circumferential diaphragm valve 106, the third circumferential diaphragm valve 107, and the fourth circumferential diaphragm valve 108 are closed, sealing the corresponding first circumferential control chamber 114, second circumferential control chamber 115, third circumferential control chamber 116, and fourth circumferential control chamber 117, and the end face diaphragm valve 113 is open, the fluid transport path is as follows:

[0066] Fluid enters from the first container 103 through the first circumferential connection port 109; after passing through the second channel 120, the eleventh channel 129, the end face control cavity 118, the twelfth channel 130 and the seventh channel 125 in sequence, it finally flows into the second container 104 through the third circumferential connection port 111.

[0067] In this transport path, the liquid flows into the first circumference of the cylindrical container 102 without passing through (or bypassing) the cylindrical container 102, flows into the first circumference of the connection port 109, and flows out of the third circumference of the connection port 111, thus bypassing the cylindrical container 102.

[0068] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A liquid flow direction control device for a cylindrical container, characterized in that, include: The system comprises a valve block, multiple circumferential diaphragm valves, end-face diaphragm valves, multiple circumferential connection ports, a cylindrical container, a first container, and a second container. The outer surface of the valve block is provided with circumferential control chambers corresponding one-to-one with the multiple circumferential diaphragm valves and end-face control chambers adapted to the end-face diaphragm valves. Multiple circumferential connection ports and multiple circumferential diaphragm valves are alternately arranged on the outer circumferential surface of the valve block; the end face diaphragm valve is disposed on the end face of one end of the valve block; The plurality of circumferential connection ports are respectively connected to the upper and lower openings of the cylindrical container, the first container and the second container; the first container is used to store the fluid input into the cylindrical container, and the second container is used to store the fluid processed by the cylindrical container; The valve block has an internal process channel network that connects all the circumferential control chambers, the circumferential connection ports, and the end face control chambers. By selectively opening and closing the circumferential diaphragm valves and the end face diaphragm valves, the flow direction and access of fluid in the process channel network are controlled. Both the circumferential and end face diaphragm valves are pneumatic diaphragm valves. The opening and closing of the pneumatic diaphragm valves causes the diaphragm to open or retract, thus blocking or opening the end face control chambers, thereby controlling the connectivity between the channels in the process channel network. The process channel network includes a first process channel group, a second process channel group, a third process channel group, a fourth process channel group, and a fifth process channel group. The first, second, third, and fourth process channel groups are all located on the same cross-section of the valve block. The inner cross-section has a first centerline and a second centerline that are perpendicular to each other; the first process hole group and the third process hole group have the same structure and are symmetrically arranged along the first centerline; the second process hole group and the fourth process hole group have the same structure and are symmetrically arranged along the second centerline. The first process hole group includes a first channel, a second channel, and a third channel; the second process hole group includes a fourth channel and a fifth channel; the third process hole group includes a sixth channel, a seventh channel, and an eighth channel; the fourth process hole group includes a ninth channel and a tenth channel. The first channel, the second channel, and the third channel form a first converging connection port near the center of the valve block; the sixth channel, the seventh channel, and the eighth channel form a second converging connection port near the center of the valve block.

2. The cylindrical container liquid flow direction control device according to claim 1, characterized in that, The valve block is an octagonal prism, and there are four circumferential diaphragm valves, namely the first circumferential diaphragm valve, the second circumferential diaphragm valve, the third circumferential diaphragm valve, and the fourth circumferential diaphragm valve. The number of circumferential connection ports is four, namely the first circumferential connection port, the second circumferential connection port, the third circumferential connection port, and the fourth circumferential connection port.

3. The cylindrical container liquid flow direction control device according to claim 2, characterized in that, The first circumferential diaphragm valve and the third circumferential diaphragm valve are arranged opposite to each other, and the second circumferential diaphragm valve and the fourth circumferential diaphragm valve are arranged opposite to each other; The first circumferential connection port is positioned opposite to the third circumferential connection port, and the second circumferential connection port is positioned opposite to the fourth circumferential connection port; The second circumferential connection port is connected to the upper opening of the cylindrical container; the fourth circumferential connection port is connected to the lower opening of the cylindrical container; the first circumferential connection port is connected to the first container; and the third circumferential connection port is connected to the second container.

4. The cylindrical container liquid flow direction control device according to claim 3, characterized in that, The number of circumferential control chambers is four, namely a first circumferential control chamber, a second circumferential control chamber, a third circumferential control chamber, and a fourth circumferential control chamber. The first circumferential control chamber is configured to correspond to the first circumferential diaphragm valve, the second circumferential control chamber is configured to correspond to the second circumferential diaphragm valve, the third circumferential control chamber is configured to correspond to the third circumferential diaphragm valve, and the fourth circumferential control chamber is configured to correspond to the fourth circumferential diaphragm valve.

5. The cylindrical container liquid flow direction control device according to claim 4, characterized in that, The first process hole group is used to connect the first circumferential control cavity, the second circumferential control cavity, and the first circumferential connection port; The second process hole group is used to connect the second circumferential control cavity, the third circumferential control cavity, and the second circumferential connection port; The third process hole group is used to connect the third circumferential control cavity, the fourth circumferential control cavity, and the third circumferential connection port; The fourth process hole group is used to connect the first circumferential control cavity, the fourth circumferential control cavity, and the fourth circumferential connection port; The fifth process hole group is used to connect the end face control cavity to the first circumferential connection port and the third circumferential connection port respectively. The first process hole group, the second process hole group, the third process hole group, and the fourth process hole group are all located within the same cross-section of the valve block; the cross-section has a first center line and a second center line that are perpendicular to each other; The first process hole group and the third process hole group have the same structure and are symmetrically arranged along the first center line; the second process hole group and the fourth process hole group have the same structure and are symmetrically arranged along the second center line.

6. The cylindrical container liquid flow direction control device according to claim 5, characterized in that, The first channel, the second channel, and the third channel are respectively connected to the first circumferential control cavity, the first circumferential connection port, and the second circumferential control cavity; the first channel, the second channel, and the third channel form a first converging connection port near the center of the valve block; The fourth channel connects the second circumferential control cavity and the third circumferential control cavity; the fifth channel connects the second circumferential connection port and the fourth channel; The sixth, seventh, and eighth channels are respectively connected to the third circumferential control cavity, the third circumferential connection port, and the fourth circumferential control cavity; the sixth, seventh, and eighth channels form a second converging connection port near the center of the valve block; The ninth channel connects the fourth circumferential control cavity and the first circumferential control cavity; The tenth channel connects the fourth circumferential connection port and the ninth channel.

7. The cylindrical container liquid flow direction control device according to claim 6, characterized in that, The fifth process hole group includes an eleventh channel and a twelfth channel. The eleventh channel connects the end face control cavity and the first collection and communication port, and then connects to the first channel, the second channel and the third channel. The twelfth channel connects the end face control cavity and the second collection and communication port, and then connects to the sixth channel, the seventh channel and the eighth channel.

8. The cylindrical container liquid flow direction control device according to claim 7, characterized in that, The diameters of the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth channels are all equal.

9. A control method for a cylindrical container liquid flow direction control device, implemented using the cylindrical container liquid flow direction control device as described in claim 7 or 8, characterized in that, Includes the following steps: When the second circumferential diaphragm valve, the fourth circumferential diaphragm valve, and the end face diaphragm valve are in the closed state, sealing the corresponding second circumferential control chamber, the fourth circumferential control chamber, and the end face control chamber, and when the first circumferential diaphragm valve and the third circumferential diaphragm valve are in the open state, the fluid delivery path is as follows: Fluid enters from the first container through the first circumferential connection port; sequentially from the second channel, the first channel, the first circumferential control cavity, the ninth channel, and the tenth channel through the fourth circumferential connection port into the upper opening of the cylindrical container; after flowing out from the lower opening of the cylindrical container, it sequentially passes through the second circumferential connection port, the fifth channel, the fourth channel, the third circumferential control cavity, the sixth channel, and the seventh channel, and finally flows into the second container through the third circumferential connection port; When the first circumferential diaphragm valve, the third circumferential diaphragm valve, and the end face diaphragm valve are in the closed state, sealing the corresponding first circumferential control chamber, the third circumferential control chamber, and the end face control chamber, and the second circumferential diaphragm valve and the fourth circumferential diaphragm valve are in the open state, the fluid delivery path is as follows: Fluid enters from the first container through the first circumferential connection port; sequentially passes through the second channel, the third channel, the second circumferential control cavity, the fourth channel, and the fifth channel, enters the lower opening of the cylindrical container through the second circumferential connection port, flows out from the upper opening of the cylindrical container, sequentially passes through the fourth connection port, the tenth channel, the ninth channel, the fourth circumferential control cavity, the eighth channel, and the seventh channel, and finally flows into the second container through the third circumferential connection port; When the first circumferential diaphragm valve, the second circumferential diaphragm valve, the third circumferential diaphragm valve, and the fourth circumferential diaphragm valve are in the closed state, sealing the corresponding first circumferential control chamber, the second circumferential control chamber, the third circumferential control chamber, and the fourth circumferential control chamber, and the end face diaphragm valve is in the open state, the fluid delivery path is as follows: Fluid enters from the first container through the first circumferential connection port; after passing through the second channel, the eleventh channel, the end face control cavity, the twelfth channel and the seventh channel in sequence, it finally flows into the second container through the third circumferential connection port.

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