Sampling device with online cleaning function

Abstract

The utility model aims to provide a sampling device with an on-line cleaning function, which comprises a liquid tank, the bottom of the liquid tank is communicated with a liquid outlet pipe, one side of the liquid outlet pipe is communicated with a liquid taking pipe, the liquid taking pipe is sequentially communicated with an electromagnetic valve, a neutralization tank and a cylinder pipe, the neutralization tank is internally provided with a liquid distribution pipe, and the cylinder pipe is communicated with the liquid distribution pipe. And the top and the bottom of the neutralization tank are respectively communicated with a liquid feeding pipe and a liquid taking and flowing-out pipe. The utility model relates to the technical field of liquid medicine sampling, through the design of the liquid distribution pipe and the rotating sealing covers at the two ends, cleaning water is sprayed out in a rotating state through the second through hole, the cleaning water sprayed out in a rotating mode can directly act on an electromagnetic valve and a piston ring, the electromagnetic valve and the piston ring are effectively and directly cleaned, and the risk of bacterium breeding is greatly reduced. Cleaning water after cleaning flows back into the neutralization tank to clean the inner wall of the neutralization tank, a complete cleaning cycle is formed, and therefore comprehensive cleaning of the electromagnetic valve, the piston ring and the inner wall of the neutralization tank is achieved.

Description

Technical Field

[0001] This utility model relates to the field of drug liquid sampling technology, specifically a sampling device with online cleaning function. Background Technology

[0002] In modern pharmaceutical manufacturing, the handling of liquid pharmaceutical solutions is crucial. During production, the solution undergoes multiple processing stages, including extraction tanks, storage tanks, and concentration tanks, to ensure its purity and quality. Sampling and analysis of the solution is an essential step in these stages, helping to monitor the production process and ensure that the solution meets prescribed standards. However, traditional sampling methods have some shortcomings, particularly regarding the cleaning of the sampling pipeline after sampling.

[0003] In existing pharmaceutical liquid processing tank sampling processes, to ensure the cleanliness of the sampling pipeline, it is usually necessary to flush and clean the pipeline with cleaning water after sampling. While this cleaning method can remove most of the residual pharmaceutical liquid, in practice, valves, especially solenoid valves, are typically used to control the inflow and outflow of the liquid. However, during the cleaning process, the location of the solenoid valve often becomes a blind spot, and residual pharmaceutical liquid can easily breed bacteria in the humid environment. This not only affects the cleanliness of the sampling pipeline, but also means that this residual pharmaceutical liquid can be carried out during subsequent sampling, thus affecting the accuracy of the test. This situation cannot be ignored in pharmaceutical production, as it may lead to erroneous test results, thereby affecting the quality and safety of the drugs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a sampling device with online cleaning function, which solves the problem of incomplete cleaning of the inside of existing sampling pipes.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a sampling device with online cleaning function, including a liquid tank, a liquid outlet pipe connected to the bottom of the liquid tank, a liquid collection pipe connected to one side of the liquid outlet pipe, a solenoid valve, a neutralization tank and a cylinder pipe connected in sequence on the liquid collection pipe, and a liquid distribution pipe provided inside the neutralization tank;

[0006] An electric telescopic rod is fixed on the cylinder tube. The output end of the electric telescopic rod passes through the cylinder tube and is inserted into its inner cavity, where a piston ring is fixed. The piston ring abuts against the inner wall surface of the cylinder tube.

[0007] The neutralization tank is connected to a liquid supply pipe at the top and a liquid outlet pipe at the bottom. The bottom of the liquid supply pipe is inserted into the neutralization tank, and a sector-shaped disk is fixed to the inserted part. The bottom of the sector-shaped disk is closed and has a first through hole. The top of the liquid distribution pipe is connected to an inlet pipe. The inlet pipe is inserted into the sector-shaped disk and extends into the liquid supply pipe. An annular gap is formed between the inlet pipe and the liquid supply pipe.

[0008] The two ends of the separator are rotatably connected to caps, and the surface of the caps has a second through hole; the caps are provided with several blades in the circumferential direction.

[0009] Preferably, the first through hole is located above the blade.

[0010] Preferably, the liquid extraction pipe, neutralization tank, cylinder pipe, and liquid distribution pipe are located on the same axis.

[0011] Preferably, a horn tube is connected between the solenoid valve and the neutralization tank, with the small end of the horn tube connected to the solenoid valve and the large end connected to the neutralization tank.

[0012] Preferably, the two caps are arranged opposite the solenoid valve and the piston ring.

[0013] Preferably, the second through holes are circumferentially distributed on the surface of the cap.

[0014] Preferably, the outer side of the liquid inlet pipe is fastened to the bottom of the sector-shaped disk by a nut.

[0015] Preferably, the outer side of the liquid separator is fixed inside the neutralization tank by a support column.

[0016] Beneficial effects

[0017] By using the sampling device with online cleaning function provided by this utility model, the following technical effects can be achieved:

[0018] 1. By using a combination of cylinder tube, electric telescopic rod and piston ring, after the solenoid valve is opened, the retraction of the electric telescopic rod drives the piston ring to move in the cylinder tube, thereby generating negative pressure in the neutralization tank, which helps to draw the liquid in the outlet tube into the neutralization tank, thus improving the sampling efficiency.

[0019] 2. The design of the separator and the rotating caps at both ends allows the cleaning water to be sprayed out in a rotating manner through the second through-hole. This rotating spray of cleaning water can directly act on the solenoid valve and piston rings, effectively cleaning these two areas and greatly reducing the risk of bacterial growth. After cleaning, the cleaning water flows back into the neutralization tank to clean its inner wall, forming a complete cleaning cycle, thereby achieving comprehensive cleaning of the solenoid valve, piston rings, and the inner wall of the neutralization tank. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the sampling component structure of this utility model;

[0022] Figure 3 This is a front view of the sampling component of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the neutralization tank of this utility model.

[0024] Explanation of symbols in the diagram

[0025] 1. Liquid tank, 2. Discharge pipe, 3. Take-up pipe, 4. Supply pipe, 5. Neutralization tank, 6. Cylinder pipe, 7. Take-up outlet pipe, 8. Solenoid valve, 9. Electric telescopic rod, 10. Horn tube, 11. Divider pipe, 12. Piston ring, 13. Sector-shaped plate, 14. First through hole, 15. Annular gap, 16. Inlet pipe, 17. Blade, 18. Second through hole, 19. Cover, 20. Support column. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Various changes can be made to the implementation scheme as long as the effects of the present invention can be achieved.

[0027] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0028] Reference Figure 1-4 The sampling device with online cleaning function in this implementation plan is described.

[0029] like Figure 1 As shown, the liquid tank 1 includes an extraction tank, a storage tank or a concentration tank in this embodiment. The bottom of the liquid tank 1 is connected to an outlet pipe 2, and a liquid collection pipe 3 is connected to one side of the outlet pipe 2.

[0030] like Figures 1 to 3 As shown, the liquid extraction pipe 3 is sequentially connected to a solenoid valve 8, a neutralization tank 5, and a cylinder pipe 6. A liquid distribution pipe 11 is installed inside the neutralization tank 5, and the outer side of the liquid distribution pipe 11 is fixed inside the neutralization tank 5 by a support column 20. The top and bottom of the neutralization tank 5 are respectively connected to a liquid supply pipe 4 and a liquid extraction outlet pipe 7. The liquid extraction pipe 3, the neutralization tank 5, the cylinder pipe 6, and the liquid distribution pipe 11 are all located on the same axis.

[0031] It should be noted that the liquid supply pipe 4 is a cleaning water supply pipe and is equipped with a valve. The liquid outlet pipe 7 guides the liquid in the neutralization tank 5 to the bottom. The liquid outlet pipe 7 is also equipped with a valve, and the bottom is connected to a sampling container.

[0032] like Figures 1 to 3 As shown, an electric telescopic rod 9 is fixed to the cylinder tube 6. The output end of the electric telescopic rod 9 passes through the cylinder tube 6 and is inserted into its inner cavity, where a piston ring 12 is fixed. The piston ring 12 is pressed against the inner wall of the cylinder tube 6. In specific implementation, the electric telescopic rod 9 is in the extended state. When sampling, the solenoid valve 8 is opened, and both the liquid supply pipe 4 and the liquid collection outlet pipe 7 are in the closed state. At this time, the electric telescopic rod 9 retracts, causing the piston ring 12 to move inside the cylinder tube 6, creating a negative pressure in the neutralization tank 5. This draws the liquid from the liquid outlet pipe 2 into the neutralization tank 5. After a certain amount is drawn, the solenoid valve 8 closes, and the electric telescopic rod 9 stops retracting. The valve of the liquid collection outlet pipe 7 opens, and the liquid flows through the liquid collection outlet pipe 7 into the sampling container, which is then removed.

[0033] like Figure 4 As shown, the bottom of the liquid supply pipe 4 is inserted into the neutralization tank 5, and a sector-shaped disk 13 is fixed to the inserted part. The bottom of the sector-shaped disk 13 is closed and has a first through hole 14. The top of the liquid distribution pipe 11 is connected to the liquid inlet pipe 16, which is inserted into the sector-shaped disk 13 and extends into the liquid supply pipe 4. The outside of the liquid inlet pipe 16 is fastened to the bottom of the sector-shaped disk 13 by a nut. An annular gap 15 is formed between the liquid inlet pipe 16 and the liquid supply pipe 4.

[0034] When it is necessary to clean the neutralization tank 5, the valve of the liquid supply pipe 4 is opened, and the cleaning water flows out through the liquid supply pipe 4. When it flows out, part of the cleaning water enters the liquid distribution pipe 11 through the liquid inlet pipe 16, and the other part of the cleaning water enters the fan-shaped plate 13 through the annular gap 15 and is sprayed out through the first through hole 14.

[0035] Furthermore, the two ends of the separating tube 11 are rotatably connected to caps 19, and the surface of the caps 19 has a second through hole 18; the caps 19 are circumferentially provided with several blades 17, and the first through hole 14 is located above the blades 17. The cleaning water in the separating tube 11 is sprayed out through the second through hole 18.

[0036] It should be further explained that when the cleaning water in the sector disk 13 is sprayed out through the first through hole 14, it acts on the blade 17. At this time, the blade 17 drives the cover 19 to rotate on the liquid distribution pipe 11, so that the cleaning water sprayed out from the second through hole 18 is sprayed out in a rotating state.

[0037] Two caps 19 are positioned opposite the solenoid valve 8 and piston ring 12. Second through holes 18 are circumferentially distributed on the surface of the caps 19. When the cleaning water sprayed from the second through holes 18 is ejected in a rotating state, it directly acts on the solenoid valve 8 and piston ring 12, directly cleaning these two areas. The cleaned water then flows back into the neutralization tank 5 to clean its inner wall. The cleaned wastewater flows out through the liquid outlet pipe 7, resulting in a comprehensive cleaning of the solenoid valve 8, piston ring 12, and the inner wall of the neutralization tank 5.

[0038] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, a horn tube 10 connects the solenoid valve 8 and the neutralization tank 5. The smaller end of the horn tube 10 is connected to the solenoid valve 8, and the larger end is connected to the neutralization tank 5. With the design of the horn tube 10, the liquid medicine flowing into the neutralization tank 5 through the solenoid valve 8 can flow quickly through the inclined inner wall of the horn tube 10, and is less prone to stagnation. Simultaneously, the cleaning water sprayed from the second through-hole 18 can also be concentrated at the solenoid valve 8 through the inclined inner wall of the horn tube 10, improving the cleaning effect on the solenoid valve 8.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device with online cleaning function, comprising a liquid tank (1), the bottom of the liquid tank (1) is communicated with a liquid outlet pipe (2), one side of the liquid outlet pipe (2) is communicated with a liquid taking pipe (3), characterized in that: The liquid taking pipe (3) is sequentially communicated with an electromagnetic valve (8), a neutralizing tank (5) and a cylinder pipe (6), the neutralizing tank (5) is internally provided with a distribution pipe (11); The cylinder pipe (6) is fixed with an electric telescopic rod (9), the output end of the electric telescopic rod (9) penetrates the cylinder pipe (6) and is inserted into the inner cavity and fixed with a piston ring (12), the piston ring (12) abuts against the inner wall surface of the cylinder pipe (6); The top and bottom of the neutralizing tank (5) are respectively communicated with a liquid feeding pipe (4) and a liquid taking outflow pipe (7), the bottom of the liquid feeding pipe (4) is inserted into the inner part of the neutralizing tank (5), and the inserted part is fixed with a fan-shaped disc (13), the bottom of the fan-shaped disc (13) is closed and provided with a first through hole (14); the top of the distribution pipe (11) is communicated with a liquid inlet pipe (16), the liquid inlet pipe (16) is inserted into the fan-shaped disc (13) and extends into the liquid feeding pipe (4), and an annular gap (15) is formed between the liquid inlet pipe (16) and the liquid feeding pipe (4); Both ends of the distribution pipe (11) are rotatably connected with a cover (19), the surface of the cover (19) is provided with a second through hole (18); the cover (19) is circumferentially provided with a plurality of blades (17).

2. The sampling device with online cleaning function according to claim 1, characterized in that: The first through hole (14) is located above the blade (17).

3. The sampling device with online cleaning function according to claim 1, characterized in that: The liquid taking pipe (3), the neutralizing tank (5) and the cylinder pipe (6) and the distribution pipe (11) are located on the same axis.

4. The sampling device with online cleaning function according to claim 1, characterized in that: The electromagnetic valve (8) and the neutralizing tank (5) are communicated with a trumpet pipe (10), the small end of the trumpet pipe (10) is connected to the electromagnetic valve (8), and the large end is connected to the neutralizing tank (5).

5. The sampling device with online cleaning function according to claim 1, characterized in that: Two covers (19) are arranged opposite to the electromagnetic valve (8) and the piston ring (12).

6. The sampling device with online cleaning function according to claim 1, characterized in that: The second through hole (18) is circumferentially distributed on the surface of the cover (19).

7. The sampling device with online cleaning function according to claim 1, characterized in that: The liquid inlet pipe (16) is fastened to the bottom of the fan-shaped disc (13) through a nut.

8. The sampling device with online cleaning function according to claim 1, characterized in that: The outer side of the distribution pipe (11) is fixed in the neutralizing tank (5) through a support column (20).

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