A sampling structure for a CIP system feed section

Abstract

The utility model discloses a kind of sampling structure for CIP system feed section, including feed pipe, sampling buffer tank, sampling main pipe, discharge pipe assembly, mounting bracket and collection box;The top of sampling buffer tank is connected with CIP cleaning pipeline by the feed pipe, and the bottom of sampling buffer tank is connected with one end of the sampling main pipe;The lateral wall of the sampling main pipe is equipped with the discharge pipe assembly, and the collection box is detachably arranged below the discharge pipe assembly by the mounting bracket;The discharge pipe assembly is used to control sample outflow, and the collection box is used to receive the sample outflow of the discharge pipe assembly. Through the cooperation of sampling main pipe and discharge pipe assembly, combined with detachable mounting bracket and collection box, the controllability of sample outflow is realized, the cleaning liquid is prevented from being sprayed or sputtered under the condition of high pressure or high temperature of balance cylinder, so as to reduce the corrosion risk of equipment, ensure the safety of operators, and reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of sterilization machine technology, and in particular to a sampling structure for the feeding section of a CIP system. Background Technology

[0002] In the food, beverage, and pharmaceutical industries, sterilization machines are crucial equipment for ensuring commercial sterility and guaranteeing product quality and safety. The feeding section, including components such as conveying pipes, balance cylinders, and valves, is highly susceptible to residual organic substances such as proteins, sugars, and fats during production. If these residues are not thoroughly cleaned, they can become a breeding ground for microorganisms, potentially leading to mass microbial contamination or spoilage of subsequent products, causing significant economic losses and posing food safety risks. Therefore, CIP (Clean-In-Place) systems are commonly used for the regular, automated cleaning and sterilization of the feeding section. During this process, the sampling port, as a key component for directly obtaining samples after cleaning and verifying the effectiveness of CIP cleaning, is of paramount importance in terms of its design rationality and safety.

[0003] However, traditional CIP sampling ports often employ simple designs such as direct connection to the balance cylinder or open piping. These designs have significant drawbacks in practical applications: when the system operates under pressure or high temperature conditions, highly acidic or alkaline cleaning solutions can easily spray or splash from the sampling port. This not only corrodes the equipment surface and surrounding facilities, shortening equipment lifespan, but can also cause severe skin burns or eye injuries to operators, leading to workplace accidents. Furthermore, the highly toxic or corrosive liquids sprayed require additional manpower for cleanup, increasing operating costs for businesses. In industries such as food and beverage, where CIP cleaning is extremely frequent, the frequent disassembly and reassembly of traditional sampling ports can easily lead to wear on threads or seals, resulting in media leaks and creating long-term safety hazards.

[0004] Therefore, the existing CIP sampling ports are inadequate in terms of safety, reliability, and ease of operation. Utility Model Content

[0005] In response to the problems raised in the background technology, the purpose of this utility model is to propose a sampling structure for the feeding section of a CIP system, which solves the problems of splashing, leakage and operational risks in existing CIP sampling ports.

[0006] To achieve this objective, the present invention adopts the following technical solution: A sampling structure for the feed section of a CIP system includes a feed pipe, a sampling buffer tank, a sampling main pipe, a discharge pipe assembly, a mounting frame, and a collection box. The top of the sampling buffer tank is connected to the CIP cleaning pipeline via the feed pipe, and the bottom of the sampling buffer tank is connected to one end of the sampling main pipe. The side wall of the sampling main tube is provided with the discharge tube assembly, and the collection box is detachably disposed below the discharge tube assembly via the mounting bracket; The discharge tube assembly is used to control the flow of the sample, and the collection box is used to receive the sample flowing out of the discharge tube assembly.

[0007] Preferably, the discharge pipe assembly includes a conveying pipe, a discharge pipe, and a control valve; One end of the conveying pipe is connected to the side wall of the sampling main pipe, and the end of the conveying pipe away from the sampling main pipe is provided with the discharge pipe. The discharge port of the discharge pipe is set downward. The control valve is set between the conveying pipe and the discharge pipe, and the control valve is used to control the opening and closing of the discharge pipe.

[0008] Preferably, the mounting bracket includes a support rod and a support plate; The bottom of the support rod is connected to the support plate, and the top of the support rod is detachably connected to the sampling tube. The collection box is detachably mounted on the top surface of the support plate.

[0009] Preferably, the top surface of the support plate is provided with a mounting groove, and the inside of the support plate is provided with a slider assembly, the slider of the slider assembly being slidable into the mounting groove; The bottom of the collection box is provided with a mounting block, and the mounting block is provided with an insertion port; The mounting block is connected to the mounting slot. When the mounting block is installed in the mounting slot, the slider slides into the socket.

[0010] Preferably, the slider assembly includes a lever, a guide rod, a spring, and the slider; the support plate has a groove inside, and the groove is perpendicular to and communicates with the mounting groove. The guide rod extends along the length of the slide groove and is disposed in the slide groove. The spring and the slider are sleeved on the outside of the guide rod. The slider is slidably disposed relative to the guide rod. One end of the spring is connected to the inner wall of the slide groove, and the other end of the spring is connected to the slider. When the slider is located at the connection between the mounting groove and the slide groove, the spring is in its normal state; When the slider slides relative to the guide rod, the slider leaves the mounting slot and compresses the spring.

[0011] Preferably, the support plate is provided with two mounting slots and two slider assemblies, the two mounting slots are arranged parallel to each other, and the two mounting slots and the two slider assemblies are arranged in a one-to-one correspondence; The bottom of the collection box is provided with two mounting blocks, and the two mounting slots and the two mounting blocks are correspondingly arranged.

[0012] Preferably, the top of the support rod is provided with a C-shaped fixing ring, which is used for installation and connection with the sampling main tube.

[0013] Preferably, the C-shaped fixing ring includes a ring body, and connecting flanges are respectively provided at both ends of the ring body, and locking holes are provided on the connecting flanges; The two connecting flanges are detachably provided with pins in their locking holes.

[0014] Preferably, the top surface of the support plate is provided with a barrier; When the collection box is installed on the support plate, the enclosure surrounds the outside of the collection box.

[0015] Preferably, the other end of the sampling tube is connected to a CIP system or a dedicated recycling tank.

[0016] Compared with the prior art, one of the above technical solutions has the following beneficial effects: By combining the sampling main pipe and the discharge pipe assembly with a detachable mounting bracket and collection box, the outflow of samples can be controlled, avoiding the spraying or splashing of cleaning fluid under the high pressure or high temperature of the balance cylinder, thereby reducing the risk of equipment corrosion, ensuring the safety of operators, and reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure from another direction of one embodiment of the present invention; Figure 3 This is an assembly diagram of the mounting frame and collection box of this utility model; Figure 4 This is a cross-sectional schematic diagram of the support plate of this utility model; Figure 5 yes Figure 3 Enlarged view of point B in the middle; Figure 6 yes Figure 3 Enlarged diagram of point A in the middle.

[0018] The components include: feed pipe 1, sampling buffer tank 2, sampling main pipe 3, discharge pipe assembly 4, conveying pipe 41, discharge pipe 42, control valve 43, mounting bracket 5, support rod 51, support plate 52, mounting groove 521, slider assembly 522, slider 5221, lever 5222, guide rod 5223, spring 5224, slide groove 5225, fixing ring 53, ring body 531, connecting flange 532, locking hole 533, pin 534, enclosure 54, collection box 6, mounting block 61, and socket 611. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0022] 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The following is in conjunction with the appendix Figures 1 to 6 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0024] A sampling structure for the feed section of a CIP system includes a feed pipe 1, a sampling buffer tank 2, a sampling main pipe 3, a discharge pipe assembly 4, a mounting frame 5, and a collection box 6. The top of the sampling buffer tank 2 is connected to the CIP cleaning pipeline through the feed pipe 1, and the bottom of the sampling buffer tank 2 is connected to one end of the sampling main pipe 3. The side wall of the sampling main tube 3 is provided with the discharge tube assembly 4, and the collection box 6 is detachably disposed below the discharge tube assembly 4 via the mounting bracket 5; The discharge pipe assembly 4 is used to control the flow of the sample, and the collection box 6 is used to receive the sample flowing out of the discharge pipe assembly 4.

[0025] The feed pipe 1 connects the CIP cleaning line to the sampling buffer tank 2, and is used to introduce the cleaning solution into the sampling buffer tank 2 for pressure buffering. The sampling buffer tank 2 has a liquid inlet at the top and a main sampling pipe 3 at the bottom for liquid outlet, stabilizing the liquid flow through gravity settling. The outlet pipe assembly 4 is located on the side wall of the main sampling pipe 3, and is used to directionally discharge the liquid into the sample collection box 6. The mounting bracket 5 is a fixing structure used to support the collection box 6, keeping the collection box 6 aligned with the outlet and preventing the liquid from contacting the external environment.

[0026] Specifically, the working principle of the sampling structure of this utility model is as follows: the cleaning fluid of the CIP system enters the sampling buffer tank 2 through the inlet pipe 1. After pressure release and flow rate reduction within the sampling buffer tank 2, it flows into the sampling main pipe 3 through the bottom of the sampling buffer tank 2. When sampling is required, the outlet pipe assembly 4 opens, and the liquid flows into the collection tank 6 along the vertically downward outlet. Furthermore, the mounting bracket 5 fixes the collection tank 6 directly below the outlet, forming a closed flow path to prevent liquid splashing. After sampling, the collection tank 6 can be quickly disassembled and replaced without disassembling the pipeline connection components, avoiding wear on the sealing structure.

[0027] Compared to existing technologies, traditional sampling ports use open pipes or direct connections to a balance cylinder. Sampling in these structures is prone to splashing due to pressure fluctuations. This invention reduces liquid impact by incorporating a sampling buffer tank 2, controls the flow trajectory using a vertical discharge direction, and forms a closed sampling channel with a detachable collection box 6. This effectively prevents splashing of strong acid and alkaline cleaning solutions, avoiding equipment corrosion and operator injury. The modular collection box design reduces the frequency of pipe disassembly and assembly, lowering the risk of leakage due to seal wear. Simultaneously, the directional discharge structure ensures a stable and controllable sampling process, improving the reliability of cleaning effect verification.

[0028] Furthermore, the discharge pipe assembly 4 includes a conveying pipe 41, a discharge pipe 42, and a control valve 43; One end of the conveying pipe 41 is connected to the side wall of the sampling main pipe 3. The end of the conveying pipe 41 away from the sampling main pipe 3 is provided with the discharge pipe 42. The discharge port of the discharge pipe 42 is set downward. The control valve 43 is set between the conveying pipe 41 and the discharge pipe 42. The control valve 43 is used to control the opening and closing of the discharge pipe 42.

[0029] When control valve 43 is open, the cleaning fluid enters the delivery pipe 41 through the sampling main pipe 3 and flows along the pipe to the discharge pipe 42, which is positioned downwards at the end. The vertically downward structure of the discharge port allows the liquid to form a stable flow column under gravity, avoiding splashing caused by horizontal jetting. The combined structure of the discharge pipe assembly 4, through the synergistic effect of directional flow guidance and control valve 43, forms a closed flow path while maintaining the sampling function, effectively suppressing liquid splashing under high pressure or high temperature conditions.

[0030] Furthermore, the mounting bracket 5 includes a support rod 51 and a support plate 52; The bottom of the support rod 51 is connected to the support plate 52, and the top of the support rod 51 is detachably connected to the sampling tube 3. The collection box 6 is detachably installed on the top surface of the support plate 52.

[0031] The top of the support rod 51 is rigidly connected to the sampling main pipe 3, providing a fixed fulcrum for the entire mounting frame 5 and preventing displacement of the collection box 6 due to pipe vibration or liquid impact. The support plate 52 stabilizes the center of gravity of the collection box 6 within the support area through its horizontal bearing surface, preventing the collection box 6 from tipping over under lateral impact. The detachable assembly structure between the bottom of the collection box 6 and the top surface of the support plate 52 ensures that the discharge pipe 42 and the opening of the collection box 6 always remain aligned. When the collection box 6 needs to be replaced, it can be removed simply by releasing the constraints; there is no need to loosen pipe connections or adjust the support structure during the operation.

[0032] Furthermore, the top surface of the support plate 52 is provided with a mounting groove 521, and the inside of the support plate 52 is provided with a slider assembly 522, the slider 5221 of the slider assembly 522 can slide into the mounting groove 521; The bottom of the collection box 6 is provided with a mounting block 61, and the mounting block 61 is provided with a socket 611; The mounting block 61 is connected to the mounting groove 521. When the mounting block 61 is installed in the mounting slot 521, the slider 5221 slides into the socket 611.

[0033] Mounting slot 521 refers to the groove structure opened on the top surface of support plate 52, used to accommodate mounting block 61 at the bottom of collection box for initial positioning. Slider assembly 522 refers to a linkage mechanism containing sliding mechanical parts, which locks or unlocks with the mounting block's insertion port 611 through the lateral movement of slider 5221. Mounting block 61 refers to the protruding structure provided at the bottom of collection box 6, whose insertion port 611 is a through hole, used to form a mechanical interlock with the slider 5221 through engagement.

[0034] Specifically, when it is necessary to disassemble the collection box 6 from the mounting bracket 5, the slider 5221 is disengaged from the socket 611 of the mounting block 61. This unlocks the slider assembly 522 from the collection box 6, allowing the collection box 6 to be removed from the mounting bracket 5. When it is necessary to reinstall the collection box 6, the mounting block 61 of the collection box 6 is aligned and inserted into the mounting slot 521, causing the slider 5221 to slide into the socket 611 of the mounting block 61, thus completing the installation of the collection box 6 from the mounting bracket 5.

[0035] Furthermore, the slider assembly 522 includes a toggle block 5222, a guide rod 5223, a spring 5224, and the slider 5221. The support plate 52 has a groove 5225 inside, which is perpendicular to and communicates with the mounting groove 521. The guide rod 5223 extends along the length of the slide groove 5225 and is disposed in the slide groove 5225. The spring 5224 and the slider 5221 are sleeved on the outside of the guide rod 5223. The slider 5221 is slidably disposed relative to the guide rod 5223. One end of the spring 5224 is connected to the inner wall of the slide groove 5225, and the other end of the spring 5224 is connected to the slider 5221. When the slider 5221 is located at the connection between the mounting groove 521 and the sliding groove 5225, the spring 5224 is in normal condition; When the slider 5221 slides relative to the guide rod 5223, the slider 5221 leaves the mounting groove 521 and compresses the spring 5224.

[0036] Specifically, when the mounting block 61 is inserted into the mounting slot 521, the slider 5221, under the action of the spring 5224, slides along the guide rod 5223 into the socket 611 of the mounting block 61, forming a rigid engagement. At this time, the spring 5224 is in a naturally extended state, maintaining the assembly fit between the slider 5221 and the socket 611 through continuous clamping force. When it is necessary to disassemble the collection box 6, the slider 5221 is driven by moving the toggle block 5222 to compress the spring 5224 along the guide rod 5223, so that the slider 5221 completely exits the socket 611 and is unlocked. The vertical arrangement of the slide groove 5225 and the mounting slot 521 allows the slider 5221 to slide linearly between the slide groove 5225 and the mounting slot 521, thereby achieving the assembly with the socket 611 of the mounting block 61. The linear constraint of the guide rod 5223 ensures that the slider 5221 can only move along the axial direction of the slide groove 5225, preventing unexpected displacement / offset due to vibration.

[0037] Furthermore, the support plate 52 is provided with two mounting slots 521 and two slider assemblies 522. The two mounting slots 521 are arranged parallel to each other, and the two mounting slots 521 and the two slider assemblies 522 are arranged in a one-to-one correspondence. The bottom of the collection box 6 is provided with two mounting blocks 61, and the two mounting slots 521 and the two mounting blocks 61 are correspondingly arranged.

[0038] When the collection box 6 needs to be installed, the two mounting blocks 61 are simultaneously aligned with the two parallel mounting slots 521 on the support plate 52 and pressed into place. At this time, the insertion port 611 of each mounting block 61 is on the movement path of the corresponding slider 5221 of the slider assembly 522. The operator only needs to push the lever 5222 in the slider assembly to make the two sliders 5221 slide synchronously into the insertion ports 611 of the two mounting blocks under the action of the spring 5224. This symmetrical layout allows the left and right sides of the collection box 6 to bear the constraint force simultaneously, eliminating the torque imbalance caused by unilateral fixing. When disassembly is required, simultaneously turning the two levers 5222 in the opposite direction will make the two sliders 5221 exit the insertion ports 611 synchronously, achieving quick unlocking.

[0039] Furthermore, the top of the support rod 51 is provided with a C-shaped fixing ring 53, which is used for installation and connection with the sampling main tube 3.

[0040] The semi-open structure of the C-shaped fixing ring 53 allows the operator to slide the sampling tube 3 laterally, and generate radial clamping force through the elastic restoring force of the ring itself to achieve rapid positioning.

[0041] Furthermore, the C-shaped fixing ring 53 includes a ring body 531, and the two ends of the ring body 531 are respectively provided with connecting flanges 532, and the connecting flanges 532 are provided with locking holes 533; Pins 534 are detachably provided in the locking holes 533 of the two connecting flanges 532.

[0042] The ring body 531 is an open annular structure that achieves circumferential positioning by elastically deforming and wrapping around the sampling main tube 3. The connecting flange 532 is a plate-like structure extending from both ends of the ring body 531. It can be connected to the ring body 531 by welding or integral molding. Its locking hole 533 is used to accommodate the pin 534 to form a mechanical lock. When the pin 534 is inserted into the locking hole 533, it restricts the displacement of the connecting flange 532, causing the ring body 531 to close and generate a radial clamping force.

[0043] Specifically, during installation, the open end of the ring body 531 is fitted onto the sampling main tube 3. The connecting flange 532 is closed by external force to align the locking hole 533. After the pin 534 is inserted into the locking hole 533, a rigid constraint is formed. At this time, the ring body 531 generates radial pressure due to elastic deformation, which fixes the sampling main tube 3 to the support rod 51. During disassembly, the pin 534 is pulled out, and the ring body 531 elastically recovers, causing the opening to open and releasing the constraint on the sampling main tube 3.

[0044] Furthermore, the top surface of the support plate 52 is provided with a barrier 54; When the collection box 6 is installed on the support plate 52, the enclosure 54 surrounds the perimeter of the collection box 6.

[0045] The enclosure 54 is an upright structure set on the top surface of the support plate 52, and its height can be adjusted according to the size of the collection box 6. The layout and shape of the enclosure 54 match the outer contour of the collection box 6, forming a surrounding limiting space.

[0046] Specifically, when the collection box 6 is placed on top of the support plate 52, the inner wall of the enclosure 524 and the outer wall of the collection box 6 form a clearance fit. The height of the enclosure 54 is set to one-fifth to one-third of the total height of the collection box, which neither affects the placement and removal of the box nor hinders horizontal impacts. When the equipment vibrates during operation or is accidentally touched by the operator, the enclosure 54 counteracts the displacement tendency through lateral restraint, ensuring that the collection box 6 is always directly below the discharge pipe assembly 4, thus ensuring the accuracy of the liquid flow path.

[0047] Furthermore, the other end of the sampling tube 3 is connected to a CIP system or a dedicated recycling tank.

[0048] The other end of sampling main pipe 3 refers to the end interface of the media flow path, which can be implemented using a flange or quick-connect fitting, to establish a sealed connection with the external container. The dedicated recovery tank refers to a sealed container independent of the CIP system, which can be implemented using a stainless steel storage tank, equipped with an internal level sensor to control the collection capacity.

[0049] Specifically, in addition to sampling, the sampling structure of this invention allows the cleaning fluid flowing into the sampling structure to return to the CIP system via the sampling main pipe 3 when sampling is not required. At this time, the CIP system's circulation pump reintroduces the liquid into the cleaning process, forming a closed-loop recycling system. In another embodiment, the end of the sampling main pipe 3 is connected to a dedicated recovery tank to receive corrosive or toxic cleaning agents, facilitating subsequent centralized treatment of waste liquid.

[0050] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A sampling structure for the feed section of a CIP system, characterized in that: Includes inlet pipe, sampling buffer tank, sampling main pipe, outlet pipe assembly, mounting frame and collection box; The top of the sampling buffer tank is connected to the CIP cleaning pipeline via the feed pipe, and the bottom of the sampling buffer tank is connected to one end of the sampling main pipe. The side wall of the sampling main tube is provided with the discharge tube assembly, and the collection box is detachably disposed below the discharge tube assembly via the mounting bracket; The discharge tube assembly is used to control the flow of the sample, and the collection box is used to receive the sample flowing out of the discharge tube assembly.

2. The sampling structure for the feed section of a CIP system according to claim 1, characterized in that: The discharge pipe assembly includes a conveying pipe, a discharge pipe, and a control valve; One end of the conveying pipe is connected to the side wall of the sampling main pipe, and the end of the conveying pipe away from the sampling main pipe is provided with the discharge pipe. The discharge port of the discharge pipe is set downward. The control valve is set between the conveying pipe and the discharge pipe, and the control valve is used to control the opening and closing of the discharge pipe.

3. A sampling structure for the feed section of a CIP system according to claim 2, characterized in that: The mounting frame includes a support rod and a support plate; The bottom of the support rod is connected to the support plate, and the top of the support rod is detachably connected to the sampling tube. The collection box is detachably mounted on the top surface of the support plate.

4. A sampling structure for the feed section of a CIP system according to claim 3, characterized in that: The top surface of the support plate is provided with a mounting groove, and the inside of the support plate is provided with a slider assembly, the slider of the slider assembly can slide into the mounting groove; The bottom of the collection box is provided with a mounting block, and the mounting block is provided with an insertion port; The mounting block is connected to the mounting groove. When the mounting block is installed in the mounting slot, the slider slides into the socket.

5. A sampling structure for the feed section of a CIP system according to claim 4, characterized in that: The slider assembly includes a lever, a guide rod, a spring, and the slider. The support plate has a sliding groove inside, which is perpendicular to and communicates with the mounting groove. The guide rod extends along the length of the slide groove and is disposed in the slide groove. The spring and the slider are sleeved on the outside of the guide rod. The slider is slidably disposed relative to the guide rod. One end of the spring is connected to the inner wall of the slide groove, and the other end of the spring is connected to the slider. When the slider is located at the connection between the mounting groove and the slide groove, the spring is in its normal state; When the slider slides relative to the guide rod, the slider leaves the mounting slot and compresses the spring.

6. A sampling structure for the feed section of a CIP system according to claim 5, characterized in that: The support plate is provided with two mounting slots and two slider assemblies. The two mounting slots are arranged parallel to each other, and the two mounting slots and the two slider assemblies are arranged in a one-to-one correspondence. The bottom of the collection box is provided with two mounting blocks, and the two mounting slots and the two mounting blocks are correspondingly arranged.

7. A sampling structure for the feed section of a CIP system according to claim 3, characterized in that: The top of the support rod is provided with a C-shaped fixing ring, which is used for installation and connection with the sampling main tube.

8. A sampling structure for the feed section of a CIP system according to claim 7, characterized in that: The C-shaped fixing ring includes a ring body, and connecting flanges are provided at both ends of the ring body, with locking holes provided on the connecting flanges; The two connecting flanges are detachably provided with pins in their locking holes.

9. A sampling structure for the feed section of a CIP system according to claim 3, characterized in that: The top surface of the support plate is provided with a barrier; When the collection box is installed on the support plate, the enclosure surrounds the outside of the collection box.

10. A sampling structure for the feed section of a CIP system according to claim 1, characterized in that: The other end of the sampling tube is connected to a CIP system or a dedicated recycling tank.

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