CN220136935U - Reverse bubble point instrument - Google Patents
Reverse bubble point instrument Download PDFInfo
- Publication number
- CN220136935U CN220136935U CN202321505431.4U CN202321505431U CN220136935U CN 220136935 U CN220136935 U CN 220136935U CN 202321505431 U CN202321505431 U CN 202321505431U CN 220136935 U CN220136935 U CN 220136935U
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- China
- Prior art keywords
- pressure
- filter element
- filter core
- bubble point
- filter
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- 238000012360 testing method Methods 0.000 claims abstract description 52
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000011162 core material Substances 0.000 abstract description 52
- 239000012528 membrane Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000011179 visual inspection Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The utility model relates to a reverse bubble point instrument, which adopts a filter core connecting device to connect one end of a filter core; one end of the filter core testing device is connected in series with the other end of the filter core; the other end of the filter core testing device is connected with a pressure relief device in series; a filter element testing device is arranged between the filter element connecting device and the pressure relief device; the pressure measurement control system controls the filter core testing device to perform reverse bubble point test on the filter core, and the pressure relief device is used for relieving pressure after the test is completed; the method solves the technical problems that in the prior art, a visual detection method is generally adopted when the detection of the existing filter element is qualified, however, whether the core material of the filter element, such as a microporous filter membrane, is damaged or not in the processing process can not be found only by visual inspection, and meanwhile, whether the filter element has the filtering performance or not can not be determined by the existing detection method.
Description
Technical Field
The embodiment of the utility model relates to a detection device in gas and liquid separation and purification equipment, in particular to a reverse bubble point instrument.
Background
When the detection of the existing filter element is qualified, a visual detection method is generally adopted in the prior art, however, whether the core material of the filter element, such as a microporous filter membrane, is damaged or not in the processing process can not be found only by visual inspection, and meanwhile, whether the filter element has the filtering performance or not can not be determined by the existing detection method.
Disclosure of Invention
The utility model aims to provide an instrument capable of detecting whether a filter element achieves filtering performance or not and detecting whether a filter element core material such as a microporous filter membrane or the like is damaged or not.
In order to achieve the above object, an embodiment of the present utility model provides a reverse bubble point apparatus comprising:
a filter element connecting device; the filter core connecting device is connected with one end of the filter core;
the filter element testing device is connected with one end of the filter element testing device in series at the other end of the filter element;
the pressure relief device is connected in series with the other end of the filter core testing device;
the filter core testing device is arranged between the filter core connecting device and the pressure relief device;
and the pressure measurement control system is used for controlling the filter core testing device to perform reverse bubble point testing on the filter core, and the pressure relief device is used for relieving pressure after the testing is completed.
Furthermore, the reverse bubble point instrument disclosed by the utility model is characterized in that the filter core connecting device, the filter core testing device, the pressure relief device and the pressure measurement control system are all arranged in the housing.
Further, the reverse bubble point instrument disclosed by the utility model is characterized in that a detection groove is formed in the housing; placing a filter element in the detection groove; and a filter core connecting device is fixed on one side surface of the detection groove.
Further, the reverse bubble point apparatus of the present utility model, the filter element connecting device further comprises:
a filter element sealing joint for detection, wherein the filter element sealing joint for detection is fixed at an outlet of the filter element;
the air inlet pipe is communicated and fixed with one end of the air inlet pipe on the filter element sealing joint for detection; the other end of the air inlet pipe is connected to the filter core testing device.
Further, the reverse bubble point apparatus of the present utility model, the filter element testing device further comprises:
an air pressure regulating valve, wherein the other end of the air inlet pipe of the filter element connecting device is connected with an outlet of the air pressure regulating valve; the inlet of the air pressure regulating valve is connected with compressed air;
the digital display pressure display instrument is arranged at one end of the filter core, which is connected with the digital display pressure display instrument, at the outlet of the filter core; the other end of the digital display pressure display instrument is connected to one end of the pressure relief device; and the other end of the pressure relief device is emptied.
Further, the reverse bubble point instrument is characterized in that the digital display pressure display instrument is connected with a power supply, meanwhile, a power supply indicator lamp is connected in parallel, the output end of the digital display pressure display instrument is connected with one end of the pressure display lamp, and the other end of the pressure display lamp is connected with one end of the power supply.
Further, the reverse bubble point apparatus of the present utility model, the pressure relief device further comprises:
one end of the evacuation valve is connected with one end of the digital display pressure display instrument;
and the other end of the evacuation valve is connected with the evacuation pipe.
Further, the reverse bubble point apparatus of the present utility model, the pressure measurement control system further comprises:
the controller is electrically connected with the digital display pressure display instrument of the filter core testing device; the controller is electrically connected with the air pressure regulating valve and the exhaust valve; the other ends of the air pressure regulating valve and the emptying valve are connected to the other side of the power supply; the controller regulates an air pressure regulating valve to control the pressure according to the air pressure value set by the digital display pressure display instrument; and the controller controls the emptying valve to be connected with the emptying pipe.
Further, the reverse bubble point apparatus of the present utility model is characterized in that the controller is a PLC controller.
Further, the reverse bubble point instrument is provided with the digital display pressure display instrument which is an electronic pressure sensor.
In the reverse bubble point apparatus of the present utility model, the so-called reverse bubble point, when compressed air is introduced in reverse from the outlet of the filter, the filter membrane develops a surface tension with the test medium after the filter element is wetted by the test medium. Compressed air must overcome the surface tension before it can escape from upstream through the filter membrane. The gas pressure against the surface tension is the membrane, i.e. the reverse bubble point value of the filter element. The reverse bubble point value can detect the reverse bubble point value of the filter core, judge whether the filter core is proper or not, and find out the reason that the reverse bubble point value of the filter core cannot meet the requirement.
Compared with the prior art, the embodiment of the utility model adopts the filter core connecting device to connect one end of the filter core; one end of the filter core testing device is connected in series with the other end of the filter core; the other end of the filter core testing device is connected with a pressure relief device in series; a filter element testing device is arranged between the filter element connecting device and the pressure relief device; the pressure measurement control system controls the filter core testing device to perform reverse bubble point test on the filter core, and the pressure relief device is used for relieving pressure after the test is completed; the method solves the technical problems that in the prior art, a visual detection method is generally adopted when the detection of the existing filter element is qualified, however, whether the core material of the filter element, such as a microporous filter membrane, is damaged or not in the processing process can not be found only by visual inspection, and meanwhile, whether the filter element has the filtering performance or not can not be determined by the existing detection method.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a connection structure of the present utility model;
fig. 3 is a schematic diagram of electrical structure connection according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present utility model. However, the technical solutions claimed in the claims of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments.
Embodiments of the present utility model relate to a reverse bubble point apparatus, as shown in fig. 1, 2, 3, comprising:
the filter core connecting device 10 is connected with one end of the filter core 2; the filter element connecting device 10 is used for connecting the filter element 2; immersing the filter element 2 in a test medium, and reversely introducing compressed air after wetting the filter element 2; the filter core connecting device 10 is connected with the filter core 2 to ensure the sealing of the connecting part.
One end of a filter core testing device 20 is connected in series with the other end of the filter core 2; the filter element testing device 20 is used for detecting the pressure of the filter element 2 when compressed air is reversely introduced, namely, the reverse bubble point value of the filter element.
The other end of the filter core testing device 20 is connected with a pressure relief device 30 in series; the pressure relief device 30 is used for relieving pressure of the compressed air introduced in the detection process, and guaranteeing that the pressure in the filter element 2 is reset to zero.
A filter core testing device 20 is arranged between the filter core connecting device 10 and the pressure relief device 30; with such a structure, the pressure of the compressed air can be ensured.
The pressure measurement control system 40 controls the filter core testing device 20 to perform reverse bubble point test on the filter core 2, and after the test is completed, the pressure relief device 30 performs pressure relief. The pressure measurement control system 40 is primarily responsible for controlling the process of testing the reverse bubble point.
The embodiment solves the technical problems that in the prior art, a visual detection method is generally adopted when the detection of the existing filter element is qualified, however, whether the core material of the filter element, such as a microporous filter membrane, is damaged or not in the processing process can not be found only by visual observation, and meanwhile, whether the filter element reaches the filtering performance or not can not be determined by the existing detection method.
In order to achieve the above technical effects, as shown in fig. 1, 2 and 3, the reverse bubble point apparatus in the present embodiment includes a filter core connecting device 10, a filter core testing device 20, a pressure relief device 30 and a pressure measurement control system 40 all disposed inside a housing 12. The structure of the inverted bubble point apparatus in this example was constructed.
In order to achieve the above technical effects, in the present embodiment, as shown in fig. 1, 2 and 3, a detection tank 1 is disposed on a housing 12; a filter element 2 is arranged in the detection groove 1; a filter element connecting device 10 is fixed to one side surface of the detection tank 1. The detection groove 1 is used for placing the filter element 2, and the filter element connecting device 10 is used for placing the filter element 2 in the detection groove 1.
To achieve the above technical effects, the reverse bubble point apparatus of the present embodiment, as shown in fig. 1, 2 and 3, the filter element connecting device 10 further includes:
a filter element sealing joint 6 for detection is fixed at the outlet of the filter element 2; the filter element sealing joint 6 for detection is used for sealing connection with the filter element 2.
One end of an air inlet pipe 7 is fixedly penetrated on the filter element sealing joint 6 for detection; the other end of the air inlet pipe 7 is connected to a filter cartridge testing device 20. The intake pipe 7 is for introducing compressed air.
In order to achieve the above technical effects, the reverse bubble point apparatus in this embodiment, as shown in fig. 1, 2 and 3, the filter core testing device 20 further includes:
the other end of the air inlet pipe 7 of the filter element connecting device 10 is connected with the outlet of the air pressure regulating valve 4; the inlet of the air pressure regulating valve 4 is connected with compressed air; the air pressure regulating valve 4 is used for regulating the pressure of the compressed air, and when the air pressure regulating valve 4 regulates the pressure of the compressed air from low to high, the compressed air can escape from upstream through the filter membrane by overcoming the surface tension. This value of gas pressure against the surface tension, i.e. the reverse bubble point value of the filter element 2.
The outlet of the filter element 2 is connected with one end of the digital display pressure display instrument 3; the other end of the digital display pressure display instrument 3 is connected to one end of the pressure relief device 30; the other end of the pressure relief device 30 is vented. The digital display pressure indicator 3 is used for displaying the pressure value of the compressed air escaping from the upstream of the filter membrane against the surface tension, namely the reverse bubble point value of the filter core 2.
In order to achieve the above technical effects, as shown in fig. 1, 2 and 3, the reverse bubble point apparatus in this embodiment connects a power supply to the digital display pressure display apparatus 3, and connects a power supply indicator 5 in parallel, where the power supply indicator 5 is used for indicating the power supply, connects one end of the pressure display lamp 8 to the output end of the digital display pressure display apparatus 3, and connects one end of the power supply to the other end of the pressure display lamp 8. The pressure display lamp 8 can visually see that the lamp is on when the reverse bubble point value of the filter element 2 is reached.
In order to achieve the above technical effects, in the present embodiment, as shown in fig. 1, 2 and 3, the pressure relief device 30 further includes:
one end of the evacuation valve 9 is connected with one end of the digital display pressure display instrument 3; the other end of the evacuation valve 9 is connected to an evacuation pipe 13. The evacuation valve 9 is used for discharging the compressed air in the filter element 2 completely, so that the pressure value of the digital display pressure display instrument 3 is zero to prepare for next detection of the filter element 2, and meanwhile, the filter element 2 can be evacuated rapidly, so that the detection time can be saved.
In order to achieve the above technical effects, the reverse bubble point apparatus in this embodiment, as shown in fig. 1, 2 and 3, the pressure measurement control system 40 further includes:
the controller 11 is electrically connected with the controller 11 on the digital display pressure display instrument 3 of the filter core testing device 20; the controller 11 is electrically connected with the air pressure regulating valve 4 and the exhaust valve 9; the other ends of the air pressure regulating valve 4 and the exhaust valve 9 are connected to the other side of the power supply; the controller 11 adjusts the air pressure regulating valve 4 to control the pressure according to the air pressure value set by the digital display pressure display instrument 3; the controller 11 controls the drain valve 9 to drain.
In order to achieve the above technical effects, the reverse bubble point apparatus in this embodiment is a PLC controller as shown in fig. 1, 2 and 3.
In order to achieve the above technical effects, in the present embodiment, as shown in fig. 1, 2 and 3, the digital display pressure display 3 is an electronic pressure sensor.
Test procedure in this example: turning on a power supply, turning on a power supply indicator lamp 5, turning on compressed air, pouring a test medium into the detection groove 1, placing the detection filter element 2 into the detection groove 1, and after the detection filter element 2 is completely wetted by the test medium, sleeving a detection filter element sealing joint 6 on the detection filter element head; the regulating valve 4 is regulated to slowly boost pressure so that compressed air enters the detection filter element 2 from the air inlet pipe 7, and the pressure value is observed when continuous bubbles appear from the surface of the filter element, and the value is the reverse bubble point value of the filter element.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (10)
1. A reverse bubble point apparatus, comprising:
a filter element connecting device; the filter core connecting device is connected with one end of the filter core;
the filter element testing device is connected with one end of the filter element testing device in series at the other end of the filter element;
the pressure relief device is connected in series with the other end of the filter core testing device;
the filter core testing device is arranged between the filter core connecting device and the pressure relief device;
and the pressure measurement control system is used for controlling the filter core testing device to perform reverse bubble point testing on the filter core, and the pressure relief device is used for relieving pressure after the testing is completed.
2. The reverse bubble point apparatus of claim 1 wherein said filter element attachment means, said filter element testing means, said pressure relief means, and said pressure measurement control system are all disposed within a housing.
3. The reverse bubble point apparatus according to claim 2 wherein a test slot is provided in said housing; placing a filter element in the detection groove; and a filter core connecting device is fixed on one side surface of the detection groove.
4. The reverse bubble point apparatus of claim 3 wherein the filter element attachment means further comprises:
a filter element sealing joint for detection, wherein the filter element sealing joint for detection is fixed at an outlet of the filter element;
the air inlet pipe is communicated and fixed with one end of the air inlet pipe on the filter element sealing joint for detection; the other end of the air inlet pipe is connected to the filter core testing device.
5. The reverse bubble point apparatus of claim 4, wherein the filter cartridge testing device further comprises:
an air pressure regulating valve, wherein the other end of the air inlet pipe of the filter element connecting device is connected with an outlet of the air pressure regulating valve; the inlet of the air pressure regulating valve is connected with compressed air;
the digital display pressure display instrument is arranged at one end of the filter core, which is connected with the digital display pressure display instrument, at the outlet of the filter core; the other end of the digital display pressure display instrument is connected to one end of the pressure relief device; and the other end of the pressure relief device is emptied.
6. The reverse bubble point apparatus according to claim 5, wherein the digital display pressure indicator is connected to a power supply, and is connected in parallel with a power supply indicator lamp, wherein an output end of the digital display pressure indicator is connected to one end of the pressure display lamp, and the other end of the pressure display lamp is connected to one end of the power supply.
7. The reverse bubble point apparatus of claim 5 wherein the pressure relief device further comprises:
one end of the evacuation valve is connected with one end of the digital display pressure display instrument;
and the other end of the evacuation valve is connected with the evacuation pipe.
8. The reverse bubble point apparatus of claim 1 wherein the pressure measurement control system further comprises:
the controller is electrically connected with the digital display pressure display instrument of the filter core testing device; the controller is electrically connected with the air pressure regulating valve and the exhaust valve; the other ends of the air pressure regulating valve and the emptying valve are connected to the other side of the power supply; the controller regulates an air pressure regulating valve to control the pressure according to the air pressure value set by the digital display pressure display instrument; and the controller controls the emptying valve to empty.
9. The reverse bubble point apparatus of claim 8 wherein the controller is a PLC controller.
10. The reverse bubble point apparatus of claim 8 wherein the digital display pressure display is an electronic pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321505431.4U CN220136935U (en) | 2023-06-13 | 2023-06-13 | Reverse bubble point instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321505431.4U CN220136935U (en) | 2023-06-13 | 2023-06-13 | Reverse bubble point instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220136935U true CN220136935U (en) | 2023-12-05 |
Family
ID=88960685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321505431.4U Active CN220136935U (en) | 2023-06-13 | 2023-06-13 | Reverse bubble point instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220136935U (en) |
-
2023
- 2023-06-13 CN CN202321505431.4U patent/CN220136935U/en active Active
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