CN218885341U - Gas circuit system for detecting leakage rate of medicament bottle - Google Patents
Gas circuit system for detecting leakage rate of medicament bottle Download PDFInfo
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- CN218885341U CN218885341U CN202223296439.2U CN202223296439U CN218885341U CN 218885341 U CN218885341 U CN 218885341U CN 202223296439 U CN202223296439 U CN 202223296439U CN 218885341 U CN218885341 U CN 218885341U
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- gas circuit
- detecting
- leakage rate
- switch valve
- circuit system
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Abstract
The utility model relates to an air tightness detects technical field, especially relates to a gas circuit system for detecting medicament bottle leakage rate. The utility model provides a gas circuit system is including maring the gas circuit and detecting the gas circuit, mark the head end connection outside air supply of gas circuit, mark the end-to-end connection adjusting device of gas circuit, be provided with relief pressure valve and reducer union in the mark gas circuit, still be provided with the flowmeter in the mark gas circuit, it sets up between flowmeter and adjusting device to detect the gas circuit, the end that detects in the gas circuit is provided with the test terminal who is used for installing negative sample, mark the gas circuit and all be provided with the ooff valve that corresponds in detecting the gas circuit. The utility model discloses simple structure, the simple operation adjusts the aperture size through adjusting device to through opening, the closure of different ooff valves, realize the intercommunication of not logical gas circuit, the utility model discloses a flexibility is high, can utilize the flowmeter to mark and detect the leakage rate.
Description
Technical Field
The utility model relates to an air tightness detects technical field, especially relates to a gas circuit system for detecting medicament bottle leakage rate.
Background
The medicine bottles used for aseptic injection products, such as ampoule bottles, penicillin bottles and the like, need to have excellent sealing integrity, and under the condition of poor sealing, medicines react with the outside air, and meanwhile, leakage easily occurs, and the use is very unsafe. Medical and biotechnology companies need to periodically test the seal integrity of pharmaceutical vials to avoid potential liquid contamination or leakage, and therefore typically need to laser punch leak test holes for calibration and to detect leak rates. Because the wall thickness of medicament bottle differs, current detection device structure is complicated, and operating procedure is loaded down with trivial details, is difficult to control aperture size reliably, and the flexibility is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas circuit system for detecting medicament bottle leakage rate to solve the problem that proposes among the above-mentioned background art.
The utility model discloses a realize through following technical scheme:
the utility model provides a gas circuit system for detecting medicament bottle leakage rate, the gas circuit system is including maring the gas circuit and detecting the gas circuit, the outside air supply is connected to the head end of maring the gas circuit, the end-to-end connection adjusting device of maring the gas circuit, be provided with relief pressure valve and reducer union in the demarcation gas circuit, still be provided with the flowmeter in the demarcation gas circuit, it sets up between flowmeter and adjusting device to detect the gas circuit, the end that detects in the gas circuit is provided with the test terminal who is used for installing the sample, all be provided with corresponding ooff valve in demarcation gas circuit and the detection gas circuit. Different switch valves can be opened and closed to combine and realize the communication of different gas paths.
Preferably, all branches of the gas path system are communicated through a tee joint.
Preferably, the adjusting device is used for adjusting the aperture size, and the adjusting device comprises an adjustable leak hole.
As a further scheme of the utility model, be provided with a plurality of ooff valves of locating between reducing joint and the adjusting device in the demarcation gas circuit, specifically include first ooff valve, second ooff valve and the third ooff valve that sets up in order along the direction of air inlet, be provided with the fourth ooff valve in the detection gas circuit.
Preferably, the flow meter and the second switch valve are arranged in parallel.
Preferably, the detection gas path is arranged between the second switch valve and the third switch valve.
Preferably, the flowmeter is selected from a laminar flow mass flowmeter or an adjustable leak hole flowmeter, the laminar flow mass flowmeter is powered by 220V alternating current and is converted into a 24VDC power supply through a transformer; the adjustable leak hole flowmeter is powered by a battery, and an external power supply is not needed.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, the simple operation adjusts the aperture size through adjusting device to through opening, the closure of different ooff valves, realize the intercommunication of not logical gas circuit, the utility model discloses a flexibility is high, can utilize the flowmeter to mark and detect the leakage rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, all valves are in an open state, and this embodiment provides an air path system for detecting a leakage rate of a medicament bottle, each branch of the air path system is communicated through a three-way joint 10, and the air path system includes a calibration air path and a detection air path. The air inlet calibration device is characterized in that a pressure reducing valve 1, a reducing joint 2, a first switch valve 3, a second switch valve 4 and a third switch valve 5 are arranged in the calibration air path in sequence along the air inlet direction, the head end of the calibration air path is connected with an external air source, the tail end of the calibration air path is connected with an adjusting device 6 used for adjusting the aperture size, the adjusting device 6 is specifically an adjustable leak hole, a flowmeter 7 connected with the second switch valve 4 in parallel is further arranged in the calibration air path, and the flowmeter 7 is used for detecting the working condition. The detection gas circuit is arranged between the second switch valve 4 and the third switch valve 5, a fourth switch valve 8 communicated with the calibration gas circuit is arranged at the head end of the detection gas circuit, and a test terminal 9 used for installing a sample is arranged at the tail end of the detection gas circuit. Different switch valves can be opened and closed to combine and realize the communication of different air paths.
A specific working manner of this embodiment is as follows:
when the machine is started, the pressure reducing valve 1 and the first switch valve 3 are closed, the flowmeter 7 is started, and the air source is opened; and opening the first switch valve 3, the second switch valve 4 and the third switch valve 5, closing the fourth switch valve 8, keeping the valve of the adjustable leak hole closed, and slowly opening the reducing valve 1 to adjust the working condition, so that the working condition pressure displayed by the flowmeter 7 is 200-230 kPa.
During the leakproofness test, the valve that keeps the small opening with adjustable closes, and at 9 installation negative samples of test terminal, when opening all valves or closing second ooff valve 4 alone, the flow of flowmeter all shows to be 0, and pressure is unanimous with operating mode pressure, then the utility model provides a gas circuit system gas tightness is good. If the flow is not 0 when all the valves are opened, the flow meter is indicated to have drift or fault; if the valve 2 is closed, the flow is not 0, which indicates that the system has air leakage and the air leakage point needs to be checked.
During calibration, the first switch valve 3, the second switch valve 4 and the third switch valve 5 are kept open, the fourth switch valve 8 is closed, the valve of the adjustable leak hole is opened, the adjusting device 6 is adjusted by using the knob to achieve the calibrated target flow, when the value of the adjusting device 6 is stable, the second switch valve 4 is closed, the stable values displayed by the flowmeter 7 and the adjusting device 6 are read and compared, and the values of the two values are in an error range, so that the calibration is completed.
During sample testing, the valve of the adjustable leak hole is closed, the third switch valve 5 and the fourth switch valve 8 are closed at the same time, the second switch valve 4 is opened, working condition pressure is kept, a sample to be tested replaces a negative sample, the fourth switch valve 8 is opened after the sample to be tested is compressed, the sample is inflated until the working condition pressure value of the flowmeter 7 is stable, the second switch valve 4 is closed again, the flow value of the flowmeter after the stability is read, and finally the leakage rate is calculated through a formula I.
Formula I:
wherein Q is a Is the flow rate under standard conditions, i.e. the leakage rate, in Nm 3 Min; c is a flow coefficient of 0.7; d 0 Is the nominal diameter of the leak path in mm; p is 1 At a pressure of 101.3kPa; f λ Is a specific heat factor of 1; x is the number of T A differential pressure ratio factor of 0.72; ta is the gas temperature 20 ℃.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a gas circuit system for detecting medicament bottle leakage rate, a serial communication port, the gas circuit system is including maring the gas circuit and detecting the gas circuit, the head end of maring the gas circuit connects outside air supply, the end-to-end connection adjusting device of demarcation gas circuit, be provided with relief pressure valve and reducer union in the demarcation gas circuit, still be provided with the flowmeter in the demarcation gas circuit, it sets up between flowmeter and adjusting device to detect the gas circuit, the end that detects in the gas circuit is provided with the test terminal who is used for installing negative sample, all be provided with the ooff valve that corresponds in demarcation gas circuit and the detection gas circuit.
2. The gas circuit system for detecting the leakage rate of a medicine bottle as claimed in claim 1, wherein each branch of the gas circuit system is communicated with each other through a three-way joint.
3. The gas circuit system for detecting the leakage rate of a medicament bottle as claimed in claim 1, wherein the adjusting means is used for adjusting the hole diameter, and the adjusting means comprises an adjustable leak hole.
4. The gas circuit system for detecting the leakage rate of the medicament bottle according to claim 1, wherein a plurality of switch valves are arranged in the calibration gas circuit, and specifically comprises a first switch valve, a second switch valve and a third switch valve which are sequentially arranged along an air inlet direction, and a fourth switch valve is arranged in the detection gas circuit.
5. The air circuit system for detecting the leakage rate of a medicine bottle as claimed in claim 4, wherein the flow meter and the second switch valve are arranged in parallel.
6. The gas circuit system for detecting the leakage rate of the medicine bottle as claimed in claim 4, wherein the detection gas circuit is arranged between the second switch valve and the third switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223296439.2U CN218885341U (en) | 2022-12-08 | 2022-12-08 | Gas circuit system for detecting leakage rate of medicament bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223296439.2U CN218885341U (en) | 2022-12-08 | 2022-12-08 | Gas circuit system for detecting leakage rate of medicament bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218885341U true CN218885341U (en) | 2023-04-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223296439.2U Active CN218885341U (en) | 2022-12-08 | 2022-12-08 | Gas circuit system for detecting leakage rate of medicament bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218885341U (en) |
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2022
- 2022-12-08 CN CN202223296439.2U patent/CN218885341U/en active Active
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