CN205333264U - Inflatable seal encloses online leak detection system - Google Patents

Abstract

The utility model discloses an on-line leak detection system for an inflatable sealing ring, which is characterized in that it comprises an inflatable valve, the inflatable valve is connected with one end of the inflatable sealing ring through an inflatable pipeline, and the other end of the inflatable sealing ring is provided with an isolator visible glass There is a flow meter on the inflation pipeline that can detect the compressed air flow in the inflation pipeline in real time. The utility model is a fully automatic control, which automatically controls the inflation and deflation of the air sealing ring, and can automatically detect whether there is leakage in the air sealing ring in real time during operation, which improves the safety and traceability of the isolator using the inflatable sealing ring , to provide more reliable safety guarantee for the pharmaceutical production in the isolator.

Description

An online leak detection system for an inflatable sealing ring

technical field

The utility model relates to an online leak detection system for an inflatable sealing ring, which belongs to the technical field of isolator sealing.

Background technique

With the implementation of the new version of GMP in China, the isolator has increasingly become an indispensable device in the pharmaceutical production process. The isolator itself provides a closed production environment, which can provide aseptic protection for the pharmaceutical production process and can also protect toxic drugs. produced to provide toxicity protection. The isolator is a closed system, and its airtightness is the most important function. Among the current mainstream isolator products in the world, most of them are sealed with inflatable sealing rings.

At present, the inflatable sealing rings used in pharmaceutical isolators mainly have the following risks:

1. Since the inflatable sealing ring is generally made of silicone rubber or other rubber products, the quality of these rubber products is different due to different manufacturers, and some products of some manufacturers will have slight leakage, which may make the inflatable sealing ring The compressed air in the isolator leaks into the isolator, causing damage to the Class A environment inside the isolator, thereby affecting the sterility of the products produced in the isolator;

2. Since the inflatable sealing ring is generally made of silicone rubber or other rubber products, in order to make the inflatable sealing ring able to achieve sealing without the need for high pressure compressed air, the wall thickness of the sealing ring is generally not very large. Thick, so that the air lifting seal may have cracks during use, causing the air seal to leak. These leaks may cause the compressed air in the inflatable sealing ring to leak into the isolator, causing damage to the A-level environment inside the isolator. damage, thereby affecting the sterility of the product produced inside the isolator.

For the leakage of the inflatable sealing ring mentioned in the previous 2 points during the production process, there is currently no good method to detect the existing leakage in real time during the production process, and carry out corresponding treatment, so as to Reduce losses caused by leakage.

Contents of the invention

The technical problem to be solved by the utility model is to provide an online leak detection system for an inflatable sealing ring with high safety and traceability, and solve the problem of how to detect the leakage of the inflatable sealing ring.

In order to solve the above technical problems, the technical solution of the utility model is to provide an online leak detection system for an inflatable sealing ring, which is characterized in that it includes an inflatable valve, the inflatable valve is connected to one end of the inflatable sealing ring through an inflatable pipeline, and the inflatable sealing ring The other end of the isolator is provided with a visible glass door of the isolator, and a flow meter that can detect the compressed air flow in the inflation pipeline in real time is installed on the inflation pipeline.

Preferably, the gas-filled sealing ring is fixed on the installation seat of the gas-filled sealing ring of the isolator.

The utility model provides a real-time leak detection system for the inflatable sealing ring of the medical isolator in the production process. During the process, the internal flow of the inflatable sealing ring is detected in real time when it is sealed, and the flow value detected by the flowmeter is used to judge whether there is leakage in the inflatable sealing ring. Stop production and deal with leaking sealing rings accordingly to reduce losses caused by leakage. The utility model is a fully automatic control, which can automatically control the inflation and deflation of the air sealing ring, and can automatically detect whether there is leakage in the air sealing ring in real time during operation, which improves the safety and traceability of the isolator using the inflatable sealing ring , to provide more reliable safety guarantee for the pharmaceutical production in the isolator.

Description of drawings

Fig. 1 is a schematic diagram of an inflatable sealing ring online leak detection system when not inflated;

Fig. 2 is a schematic diagram of an online leak detection system for an inflatable sealing ring when it is inflated.

detailed description

In order to make the utility model more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

The utility model is an online leak detection system for an inflatable sealing ring, as shown in Fig. Visible glass door 6. The inflation valve 1 is connected to one end of the inflation sealing ring 5 through the inflation pipeline 3, and the inflation sealing ring 5 is fixed on the installation seat 4 of the isolator inflation sealing ring. The other end of the inflatable sealing ring 5 is equipped with an isolator visible glass door 6, and a flow meter 2 is installed on the inflatable pipeline 3, which can detect the flow of compressed air in the inflatable pipeline 3 in real time.

In the state shown in Fig. 1, the inflation valve 1 is in the closed state, the inflatable sealing ring 5 is in the state of not being inflated, and the isolator visible glass door 6 can be opened and closed freely.

When the utility model is inflated, as shown in Figure 2, the inflatable valve 1 is in the open state, the inflatable sealing ring 5 is in the inflated state, and the isolator visible glass door 6 is in the sealed state and cannot be freely switched.

The principle of the online leak detection of the utility model is: in the state shown in Figure 1, the online leak detection system does not work, in the state shown in Figure 2, the inflation valve 1 is opened, and the inflatable sealing ring 5 is in an inflated state, And it fits closely with the visible glass door 6 of the isolator, and the flowmeter 2 starts to work. At this time, if the quality of the inflatable sealing ring 5 is intact and there is no leakage, the flow rate displayed by the flowmeter 2 should be 0, which means that the inflatable sealing ring 5 There is no air leakage. If the quality of the inflatable sealing ring 5 is defective and there is air leakage at this time, there will be continuous compressed air passing through the inflatable pipeline 3, and the flow meter 2 will display the flow rate of the compressed air passing through. The displayed flow is the air leakage of the inflatable sealing ring 5. In actual use, the flow value measured by the flowmeter 2 will be transmitted to the control system in real time. It is judged that there is leakage in the inflatable sealing ring 5 by the flow value obtained, and an alarm will be activated to notify the operator that there is leakage and needs to be dealt with. The operator can immediately stop the production, check the leakage of the sealing ring, and deal with it in time to reduce the risk of pharmaceutical production.

Claims (2)

1. an inflatable sealing ring online leak detection system, is characterized in that, comprises inflation valve (1), and inflation valve (1) is connected with an end of inflation sealing ring (5) by inflation pipeline (3), and inflation sealing ring ( The other end of 5) is provided with an isolator visible glass door (6), and the gas charging pipeline (3) is provided with a flow meter (2) which can detect the compressed air flow in the gas charging pipeline (3) in real time. 2. An online leak detection system for an inflatable sealing ring according to claim 1, characterized in that the inflatable sealing ring (5) is fixed on the isolator inflatable sealing ring mounting seat (4).