CN212721952U - Online leakage detection system for inflatable sealing ring - Google Patents
Online leakage detection system for inflatable sealing ring Download PDFInfo
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- CN212721952U CN212721952U CN202021873714.0U CN202021873714U CN212721952U CN 212721952 U CN212721952 U CN 212721952U CN 202021873714 U CN202021873714 U CN 202021873714U CN 212721952 U CN212721952 U CN 212721952U
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Abstract
An online leak detection system for an inflatable sealing ring belongs to the technical field of isolator sealing. The method is characterized in that: including the inflatable seal circle (9) that encircles sealing door (10) setting, aerating device, take out negative pressure device and pressure detection component, inflatable seal circle (9) are installed in mounting groove (12), the air cock of inflatable seal circle (9) is linked together with aerating device's gas outlet and take out negative pressure device's air inlet simultaneously, be provided with between aerating device's the gas outlet and the air cock of inflatable seal circle (9) inflation valve (3), be provided with between the air cock of taking out negative pressure device and inflatable seal circle (9) and release valve (6), pressure detection component is linked together with the air cock of inflatable seal circle (9). This online leak hunting system of inflatable seal circle take out negative pressure device can take out the negative pressure to inflatable seal circle, makes inflatable seal circle shrink go into the mounting groove in, avoids sealing door to cause the damage to inflatable seal circle, has improved inflatable seal circle's life.
Description
Technical Field
An online leak detection system for an inflatable sealing ring belongs to the technical field of isolator sealing.
Background
In modern pharmaceutical industry, isolators are becoming an indispensable device in pharmaceutical production, and isolation technology is a technology for isolating a controlled space from the external environment by means of a physical barrier. The isolator is used as a closed system, the tightness of the isolator is the most important function, and most of the isolator products in the current global mainstream adopt an inflatable sealing ring for sealing.
The currently used inflatable sealing ring mainly has the following risks: 1) because the manufacturing quality of sealing ring manufacturers is different, some manufacturers have the condition that the sealing ring leaks slightly or the air inflation nozzle leaks, and the leakage can damage the class A environment in the cabin, so that the sterility of the medicine is influenced; 2) because the material of the inflatable sealing ring is mostly silicon rubber and the wall thickness is generally thinner, the inflatable sealing ring can be broken in the using process, the A-grade environment in the cabin is influenced, or the sealing performance of the sealing door is damaged, so that the A-grade environment in the cabin is damaged or the toxicity protection is damaged.
The utility model discloses a system whether application number is 201521066429.7's chinese utility model discloses a whether inflatable seal circle on-line measuring and judgement work, it detects inflatable seal circle through installing the pressure transmitter on gas charging line and whether has gas leakage, but in it can't guarantee to deflate back inflatable seal circle and can contract and get into the mounting groove, the in-process that opens or close at the sealing door leads to inflatable seal circle to damage very easily.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the online leakage detecting system for the inflatable sealing ring, which can realize online detection of the inflatable sealing ring and can assist the inflatable sealing ring to shrink into the mounting groove when the sealing door is opened, is provided.
The utility model provides a technical scheme that its technical problem adopted is: this online leak hunting system of inflatable seal circle, its characterized in that: the air charging device comprises an air charging seal ring, an air charging device, a negative pressure pumping device and a pressure detection element, wherein the air charging seal ring is arranged around a sealing door, the air charging seal ring is arranged in a mounting groove, an air nozzle of the air charging seal ring is simultaneously communicated with an air outlet of the air charging device and an air inlet of the negative pressure pumping device, an air charging valve is arranged between the air outlet of the air charging device and the air nozzle of the air charging seal ring, an air discharging valve is arranged between the negative pressure pumping device and the air nozzle of the air charging seal ring, and.
Preferably, the inflation device comprises an air inlet pipe and an inflation pressure reducing valve, the air outlet of the air inlet pipe is communicated with the air tap of the inflation sealing ring, the inflation pressure reducing valve is arranged on the air inlet pipe, and the inflation valve is arranged between the air outlet of the air inlet pipe and the air tap of the inflation sealing ring. The inflation pressure reducing valve can adjust the pressure of the compressed air entering the inflation sealing ring, so that the pressure of the compressed air entering the inflation sealing ring is stable, and the inflation pressure in the inflation sealing ring can be controlled through the inflation time.
Preferably, the inflation device further comprises an inflation pressure switch, and the inflation pressure reducing valve and the inflation pressure switch are sequentially arranged along the air inlet pipe. Inflation pressure switch can real-time supervision get into the pressure of the compressed gas in the inflatable seal circle, avoids the too high damage of inflatable seal circle that leads to of pressure, also can avoid the pressure to hang down to lead to taking place to leak gas between inflatable seal circle and the sealing door excessively.
Preferably, the negative pressure pumping device comprises a vacuum generator, an air inlet of the vacuum generator is communicated with an air tap of the inflatable sealing ring, and a deflation valve is arranged between the air inlet of the vacuum generator and the air tap of the inflatable sealing ring.
Preferably, the negative pressure pumping device further comprises a deflation pressure reducing valve, and the deflation pressure reducing valve is arranged between an air inlet of the vacuum generator and a deflation valve. The pressure of the gas discharged by the inflatable sealing ring can be adjusted by the deflation pressure reducing valve, so that the pressure of the gas discharged by the inflatable sealing ring is constant, and the pressure of the inflatable sealing ring after deflation is controlled by controlling the deflation time.
Preferably, the pressure detecting element is a pressure detecting switch.
Preferably, a one-way valve is arranged between the inflation valve and an air tap of the inflation sealing ring. The check valve can enable the inflatable sealing ring to maintain stable pressure when power is cut off accidentally, and reliable sealing between the inflatable sealing ring and the sealing door is guaranteed.
Preferably, the mounting groove is arranged around the sealing door, and the section of the mounting groove is a groove with an opening facing the sealing door.
Preferably, the width of the mounting groove is greater than the thickness of the sealing door.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
this online leak hunting system of inflatable seal circle's pressure measurement element can detect inflatable seal circle on-line, and then leak inflatable seal circle and carry out automated inspection, improves the security and the stability of isolator, takes out negative pressure device and can take out the negative pressure to inflatable seal circle, makes inflatable seal circle shrink go into the mounting groove in, avoids sealing door to cause the damage to inflatable seal circle, has improved inflatable seal circle's life.
Drawings
Fig. 1 is a schematic structural diagram of an inflatable sealing ring of an online leak detection system of the inflatable sealing ring in an open state.
Fig. 2 is a schematic structural diagram of the inflatable sealing ring of the online leak detection system of the inflatable sealing ring in a closed state.
In the figure: 1. the device comprises an inflation pressure reducing valve 2, an inflation pressure switch 3, an inflation valve 4, a one-way valve 5, a detection pressure switch 6, an air relief valve 7, an air relief pressure reducing valve 8, a vacuum generator 9, an inflation sealing ring 10, a sealing door 11, an air inlet pipe 12 and a mounting groove.
Detailed Description
Fig. 1 to 2 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 2.
The utility model provides an online leak hunting system of inflatable seal ring, including the inflatable seal ring 9 that encircles sealing door 10 and set up, aerating device, take out negative pressure device and pressure detection component, inflatable seal ring 9 is installed in mounting groove 12, inflatable seal ring 9's air cock is linked together with aerating device's gas outlet and take out negative pressure device's air inlet simultaneously, be provided with charging valve 3 between aerating device's gas outlet and inflatable seal ring 9's the air cock, it is provided with relief valve 6 to take out between negative pressure device and the air cock of inflatable seal ring 9, pressure detection component is linked together with inflatable seal ring 9's air cock. This online leak hunting system of inflatable seal ring's pressure measurement component can detect inflatable seal ring 9 on the line, and then whether leak inflatable seal ring 9 and carry out automated inspection, improves the security and the stability of isolator, takes out negative pressure device and can take out the negative pressure to inflatable seal ring 9, makes inflatable seal ring 9 shrink go into mounting groove 12 in, avoids sealing door 10 to cause the damage to inflatable seal ring 9, has improved inflatable seal ring 9's life.
The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.
Specifically, the method comprises the following steps: as shown in FIGS. 1-2: the mounting groove 12 is arranged around the sealing door 10, the section of the mounting groove 12 is a groove shape with an opening facing the sealing door 10, the section of the inflatable sealing ring 9 is square, the inflatable sealing ring 9 is mounted in the mounting groove 12, when inflated, one side of the inflatable sealing ring 9 close to the sealing door 10 extends out and is tightly attached to the sealing door 10, and the sealing door 10 is connected in a sealing mode. The width of the installation groove 12 is set to be greater than the thickness of the sealing door 10.
The air tap of the inflatable sealing ring 9 is simultaneously communicated with the air outlet of the inflating device and the air inlet of the negative pressure pumping device through an air pipe, and a pressure detection element is arranged on the air pipe, wherein the pressure detection element is a pressure detection switch 5 in the embodiment.
The inflation device comprises an air inlet pipe 11, an inflation pressure reducing valve 1 and an inflation pressure switch 2, wherein an air inlet of the air inlet pipe 11 is communicated with compressed air supply equipment, an air outlet of the air inlet pipe 11 is communicated with an air pipe, and the inflation pressure reducing valve 1 and the inflation pressure switch 2 are sequentially arranged along the air inlet pipe 11. An air outlet of the air inlet pipe 11 is connected with an air inlet valve 3, and the on-off of compressed air can be controlled through the air inlet valve 3.
Still install check valve 4 on the intake pipe 11, check valve 4 sets up between inflation valve 3 and trachea to can avoid the compressed gas in the inflatable seal 9 to flow back through intake pipe 11 when equipment outage, guarantee sealing door 10 and inflatable seal 9 and keep encapsulated situation.
The negative pressure pumping device comprises a vacuum generator 8 and a deflation pressure reducing valve 7, an air inlet of the vacuum generator 8 is communicated with an air pipe, a deflation valve 6 is arranged between the vacuum generator 8 and the air pipe, the deflation pressure reducing valve 7 is arranged between the deflation valve 6 and the vacuum generator 8, and in the embodiment, the inflation valve 3 and the deflation valve 6 are both electromagnetic valves.
Before the online leak detection system for the inflatable sealing ring inflates the inflatable sealing ring 9 for the first time, the inflatable pressure reducing valve 1 needs to be adjusted to enable the inflation pressure to be maintained in the safe use pressure range of the inflatable sealing ring 9, then the inflatable pressure switch 2 is adjusted to enable the inflatable pressure switch 2 to send out a high-pressure alarm when the inflation pressure exceeds the safe use pressure of the inflatable sealing ring 9, and a low-pressure alarm is generated when the inflation pressure is lower than the pressure required by sealing of the inflatable sealing door 10.
After the adjustment is finished, the inflation valve 3 is opened to inflate the inflation sealing ring 9, the inflation valve 3 is closed after 1min of delay, the deflation valve 6 is in a closed state at the moment, the inflation sealing ring 9 is inflated, and the sealing door 10 is in a sealing state and cannot be freely opened and closed. After the inflatable sealing ring 9 is inflated and completely attached and sealed with the sealing door 10, the detection pressure switch 5 is adjusted to have signal output.
Before the air-filled seal ring 9 is deflated for the first time, the air-deflated pressure-reducing valve 7 is adjusted to ensure that the suction force generated by the vacuum generator 8 can enable the air-filled seal ring 9 to retract into the mounting groove 12.
When the inflatable sealing ring 9 is deflated, the inflation valve 3 is closed, the deflation valve 6 is opened, the vacuum generator 8 is started, and after the inflatable sealing ring 9 retracts into the mounting groove 12, the vacuum generator 8 is closed. At this time, the sealing door 10 is restored to the unsealed state and can be freely opened and closed.
The inflation valve 3 is opened to inflate the inflation sealing ring 9, then the inflation valve 3 is closed, and if the inflation sealing ring 9 is good in quality and has no leakage, the detection pressure switch 5 always outputs a signal; if the inflation valve 3 is closed, and the detection pressure switch 5 does not output signals within a period of time, the leakage of the inflatable sealing ring 9 is judged, and the control system generates an alarm signal to inform an operator that the leakage of the inflatable sealing ring 9 exists and needs to be processed.
The inflation valve 3 is opened to inflate the inflation sealing ring 9, if an inflation pipeline composed of the inflation valve 3, the one-way valve 4, the detection pressure switch 5 and the inflation sealing ring 9 is good, the detection pressure switch 5 can immediately detect the pressure and generate signal output, and at the moment, the inflation sealing ring 5 can be judged to be inflated and the sealing door 10 is sealed; if the inflation valve 3, the one-way valve 4 and the detection pressure switch 5 are damaged or the inflation sealing ring 9 is not connected to the inflation pipeline, the detection pressure switch 5 cannot detect the pressure, the inflation sealing ring 9 can be judged not to be inflated at the moment, the control system can judge that the inflation pipeline is damaged according to the judgment, the starting alarm is given, and the operator is informed to check to avoid starting the isolator to produce under the condition that the inflation sealing ring 9 is not inflated.
Under the condition of unexpected air-break and power-off, the inflation valve 3 is firstly opened to inflate the inflation sealing ring 9, the inflation valve 3 is closed after 1min of delay, and the deflation valve 6 is in a closed state. If the equipment is unexpectedly powered off and air is cut off at the moment, the check valve 4 prevents the compressed air in the inflatable sealing ring 9 from flowing back, so that the sealing performance of the sealing door 10 is not damaged under the condition of unexpected power off.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an online leak hunting system of inflatable seal circle which characterized in that: including the inflatable seal circle (9) that encircles sealing door (10) setting, aerating device, take out negative pressure device and pressure detection component, inflatable seal circle (9) are installed in mounting groove (12), the air cock of inflatable seal circle (9) is linked together with aerating device's gas outlet and take out negative pressure device's air inlet simultaneously, be provided with between aerating device's the gas outlet and the air cock of inflatable seal circle (9) inflation valve (3), be provided with between the air cock of taking out negative pressure device and inflatable seal circle (9) and release valve (6), pressure detection component is linked together with the air cock of inflatable seal circle (9).
2. The inflatable gasket online leak detection system of claim 1, wherein: the inflating device comprises an air inlet pipe (11) and an inflating and reducing valve (1), wherein an air outlet of the air inlet pipe (11) is communicated with an air faucet of an inflating and sealing ring (9), the inflating and reducing valve (1) is arranged on the air inlet pipe (11), and an inflating valve (3) is arranged between the air outlet of the air inlet pipe (11) and the air faucet of the inflating and sealing ring (9).
3. The inflatable gasket online leak detection system of claim 2, wherein: the inflation device also comprises an inflation pressure switch (2), and the inflation pressure reducing valve (1) and the inflation pressure switch (2) are sequentially arranged along the air inlet pipe (11).
4. The inflatable gasket online leak detection system of claim 1, wherein: the negative pressure pumping device comprises a vacuum generator (8), an air inlet of the vacuum generator (8) is communicated with an air nozzle of the inflatable sealing ring (9), and a release valve (6) is arranged between the air inlet of the vacuum generator (8) and the air nozzle of the inflatable sealing ring (9).
5. The inflatable gasket on-line leak detection system of claim 4, wherein: the negative pressure pumping device further comprises a deflation pressure reducing valve (7), and the deflation pressure reducing valve (7) is arranged between an air inlet of the vacuum generator (8) and the deflation valve (6).
6. The inflatable gasket online leak detection system of claim 1, wherein: the pressure detection element is a pressure detection switch (5).
7. The inflatable gasket online leak detection system of claim 1, wherein: a one-way valve (4) is arranged between the inflation valve (3) and the air tap of the inflation sealing ring (9).
8. The inflatable gasket online leak detection system of claim 1, wherein: the mounting groove (12) is arranged around the sealing door (10), and the section of the mounting groove (12) is a groove shape with an opening facing the sealing door (10).
9. The inflatable gasket on-line leak detection system of claim 8, wherein: the width of the mounting groove (12) is larger than the thickness of the sealing door (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873714.0U CN212721952U (en) | 2020-09-01 | 2020-09-01 | Online leakage detection system for inflatable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021873714.0U CN212721952U (en) | 2020-09-01 | 2020-09-01 | Online leakage detection system for inflatable sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212721952U true CN212721952U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021873714.0U Active CN212721952U (en) | 2020-09-01 | 2020-09-01 | Online leakage detection system for inflatable sealing ring |
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| Country | Link |
|---|---|
| CN (1) | CN212721952U (en) |
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2020
- 2020-09-01 CN CN202021873714.0U patent/CN212721952U/en active Active
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