CN219038765U - Primary filtration efficiency testing device - Google Patents
Primary filtration efficiency testing device Download PDFInfo
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- CN219038765U CN219038765U CN202223471954.XU CN202223471954U CN219038765U CN 219038765 U CN219038765 U CN 219038765U CN 202223471954 U CN202223471954 U CN 202223471954U CN 219038765 U CN219038765 U CN 219038765U
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Abstract
The utility model discloses a primary filtering efficiency testing device, which relates to the technical field of testing devices and comprises a main body device, wherein the main body device comprises a support detection unit, a hybrid filtering unit and a power unit, the support detection unit comprises a first connecting cylinder and a second connecting cylinder, the hybrid filtering unit comprises a gauze mounting cylinder, a test filter screen mounting cylinder and a purification filter screen mounting cylinder, and the power unit comprises a fan. The utility model can be used for testing the removal efficiency of gaseous pollutants such as formaldehyde, aerosol and the like, can also be used for testing wind resistance, air quantity and air speed of a filter screen, can be matched with different instruments to perform different tests, has strong practicability, is simple and small in integral device, does not occupy space in installation, has reasonable air duct design, has no curve and diameter change, has uniform air speed in a pipeline, has stable test data, can adjust the air speed in the device according to test requirements, has sectional design, and is simple and convenient to detach.
Description
Technical Field
The utility model relates to the technical field of testing devices, in particular to a primary filtering efficiency testing device.
Background
The performance test method standard of the filter material is different from the performance test method standard of the filter, the performance test of the filter needs to meet the characteristic requirements of a fluid system or a working position where the filter material is positioned, the filter material needs to meet the technological requirements and the physicochemical performance requirements in the filter production process while meeting the filter performance requirements, and meanwhile, the performance of the filter material needs to be detected according to the characteristics of the material so as to realize the long service life of the filter, good process, reliable strength and high efficiency of blocking micro-sized particles.
The currently commonly used filter material detection methods comprise an atmospheric method and a sodium flame method, but both have different defects. The atmospheric method causes instability of the test results due to the unevenness of the air flow, and the difference in the atmospheric composition from place to place also causes inaccuracy of the test data. For the sodium flame method, the testing method has larger influence on the environment and is more limited in use. In addition, the existing instrument for testing the filter materials often has the defects of complex structure and high cost.
In the prior art, a Chinese patent with a publication number of CN209296533U is proposed to solve the technical problems, and the technical scheme disclosed in the patent document is as follows: the utility model provides a measuring air filter material filtration efficiency's testing arrangement, including pipeline subassembly, filter material fixed subassembly, the fan, dust source mixing chamber, dust source generator, upstream measurement host computer and downstream measurement host computer, the filter material that awaits measuring is fixed on filter material fixed host computer, the upstream measurement subassembly is installed in the upstream pipeline of filter material fixed host computer upper reaches, the downstream measurement subassembly is installed in the downstream pipeline of filter material fixed host computer low reaches, dust source mixing chamber locates on the upstream pipeline, calculate differential pressure and filtration efficiency through the upstream and downstream measurement subassembly. The utility model has the advantages that: the measuring device adopts a pipeline type passage, is matched with the dust source generator to adjust the concentration of front-end particles, has simple structure, lower cost and perfect function, can set detection parameters according to the national standard of filter material detection, is easy to refit, can meet the requirements in the standard only by controlling the dust source generator under the control requirement of different filter material air flow rates, but is inconvenient for testing the removal efficiency of formaldehyde, aerosol and other gaseous pollutants, is also inconvenient for testing wind resistance, air quantity and air speed of a filter screen, and leads to the improvement of the applicability of the device.
Disclosure of Invention
The present utility model is directed to a primary filtering efficiency testing device, so as to solve the problems set forth in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the primary filtration efficiency testing device comprises a main body device, wherein the main body device comprises a support detection unit, a mixing filtration unit and a power unit.
The support detection unit comprises a first connecting cylinder and a second connecting cylinder, the hybrid filter unit comprises a gauze installation cylinder, a test filter screen installation cylinder and a purification filter screen installation cylinder, and the power unit comprises a fan.
The gauze installation cylinder and the test filter screen installation cylinder are respectively located at the left end and the right end of the first connecting cylinder, the test filter screen installation cylinder and the purification filter screen installation cylinder are respectively located at the left end and the right end of the second connecting cylinder, the second connecting cylinder is located at the left side of the first connecting cylinder, and the fan is located at the right end of the purification filter screen installation cylinder.
By adopting the technical scheme, the method can be used for testing the removal efficiency of gaseous pollutants such as formaldehyde, aerosol and the like, can also be used for testing wind resistance, air quantity and wind speed of a filter screen, can be matched with different instruments, and has strong practicability.
The technical scheme of the utility model is further improved as follows: the right end of the gauze installation cylinder is fixedly connected with the left end of the first connecting cylinder, and the inner wall of the right end of the gauze installation cylinder is connected with an installation gauze in a clamping manner.
The technical scheme of the utility model is further improved as follows: the left end of the purification filter screen mounting cylinder is fixedly connected with the right end of the second connecting cylinder.
The technical scheme of the utility model is further improved as follows: the outer wall of the fan is fixedly connected with the outer wall of the right end of the purification filter screen mounting cylinder.
The technical scheme of the utility model is further improved as follows: the right-hand member of first connecting cylinder with the left end fixed connection of test filter screen installation section of thick bamboo, the inner wall joint of test filter screen installation section of thick bamboo has the test filter screen.
The technical scheme of the utility model is further improved as follows: the inner wall joint of purification filter screen installation cylinder has the purification filter screen.
The technical scheme of the utility model is further improved as follows: the first mounting holes are formed in the upper surface of the first connecting cylinder, the second mounting holes are formed in the upper surface of the second connecting cylinder, and the number of the first mounting holes and the number of the second mounting holes are two respectively.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
1. the utility model provides a primary filtration efficiency testing device, which is simple and compact in overall device, has the total length of about 1.1m and does not occupy space.
2. The utility model provides a primary filtering efficiency testing device which can be used for testing the removal efficiency of gaseous pollutants such as formaldehyde, aerosol and the like, can also be used for testing wind resistance, air quantity and wind speed of a filter screen, can be used for different tests by matching with different instruments, and has strong practicability.
3. The utility model provides a primary filtration efficiency testing device, which has reasonable air duct design, no bend and no diameter change, uniform wind speed in the pipeline and stable testing data.
4. The utility model provides a primary filtering efficiency testing device, wherein the wind speed in the device can be adjusted according to the testing requirement.
5. The utility model provides a primary filtration efficiency testing device which is designed in a segmented way and is simple and convenient to detach.
Drawings
FIG. 1 is a schematic view of a main device structure of the present utility model;
FIG. 2 is a schematic top view of a first connecting tube according to the present utility model;
FIG. 3 is a left side view of the first connecting tube of the present utility model;
fig. 4 is a right-side structural view of the second connecting cylinder of the present utility model.
In the figure: 1. a main body device; 2. a screen mounting cylinder; 3. testing a filter screen mounting cylinder; 4. a purifying filter screen mounting cylinder; 5. a first connecting cylinder; 6. a second connecting cylinder; 7. installing a gauze; 8. a blower; 9. a first mounting hole; 10. and a second mounting hole.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in fig. 1 to 4, the present utility model provides a primary filtration efficiency testing device including a main body device 1, the main body device 1 including a support detection unit, a hybrid filtration unit, and a power unit.
The support detection unit comprises a first connecting cylinder 5 and a second connecting cylinder 6, the hybrid filter unit comprises a gauze installation cylinder 2, a test filter screen installation cylinder 3 and a purification filter screen installation cylinder 4, and the power unit comprises a fan 8.
The gauze installation cylinder 2 and the test filter screen installation cylinder 3 are respectively positioned at the left end and the right end of the first connecting cylinder 5, the test filter screen installation cylinder 3 and the purification filter screen installation cylinder 4 are respectively positioned at the left end and the right end of the second connecting cylinder 6, the second connecting cylinder 6 is positioned at the left side of the first connecting cylinder 5, and the fan 8 is positioned at the right end of the purification filter screen installation cylinder 4.
The right-hand member of gauze installation section of thick bamboo 2 is fixed connection with the left end of first connecting cylinder 5, and the right-hand member inner wall joint of gauze installation section of thick bamboo 2 has installation gauze 7, and the gas utilizes in the even back arrival first connecting cylinder 5 of mixing of installation gauze 7, makes things convenient for follow-up detection.
The left end of purifying filter screen installation section of thick bamboo 4 is fixed connection with the right-hand member of second connecting cylinder 6, and screen installation section of thick bamboo 2, test filter screen installation section of thick bamboo 3, purifying filter screen installation section of thick bamboo 4, first connecting cylinder 5 and each section of subassembly of second connecting cylinder 6 all carry out fixed mounting through the screw, make things convenient for follow-up dismantlement.
Example 2
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a primary technical solution: preferably, the outer wall of the fan 8 is fixedly connected with the outer wall of the right end of the purification filter screen mounting cylinder 4, the right end of the first connecting cylinder 5 is fixedly connected with the left end of the test filter screen mounting cylinder 3, and the inner wall of the test filter screen mounting cylinder 3 is clamped with a test filter screen.
The inner wall joint of purifying filter screen mounting cylinder 4 has purifying filter screen, first mounting hole 9 has been seted up to the upper surface of first connecting cylinder 5, second mounting hole 10 has been seted up to the upper surface of second connecting cylinder 6, the quantity of first mounting hole 9 and second mounting hole 10 is two respectively, install respectively in first mounting hole 9 and second mounting hole 10 and be used for the used detection device of test such as formaldehyde, aerosol and wind speed according to the demand of required test, the gas carries out first resampling through the detection device who installs on the first mounting hole 9, carry out the test to the gas concentration before the filtration, wind pressure, data such as wind speed, later test filter screen in test filter screen mounting cylinder 3 reaches in the second connecting cylinder 6, carry out the second resampling by the detection device who installs on the second mounting hole 10, carry out the test to the gas concentration after the filtration, wind pressure, data such as wind speed.
The working principle of the filtering efficiency testing device is specifically described below.
In use, as shown in fig. 1-4, the installation screen 7 is installed into the screen installation cylinder 2, then the test screen is installed into the test screen installation cylinder 3, and then the purge screen is installed into the purge screen installation cylinder 4.
Then according to the requirement of the required test, the detection devices for testing formaldehyde, aerosol, wind speed and the like are respectively arranged in the first mounting hole 9 and the second mounting hole 10, the number of the first mounting hole 9 and the second mounting hole 10 is two, and the corresponding detection devices can be arranged on the numerical value of the detected gas.
Then the external power supply starts the fan 8, the mixed gas containing formaldehyde, aerosol or other gaseous pollutants to be tested is sucked into the gauze mounting cylinder 2, the gas reaches the first connecting cylinder 5 after being uniformly mixed by the mounting gauze 7, the first resampling is carried out by the detection device mounted on the first mounting hole 9, the data of concentration, wind pressure, wind speed and the like before the gas is filtered are tested, then the test filter screen in the test filter screen mounting cylinder 3 reaches the second connecting cylinder 6, the second resampling is carried out by the detection device mounted on the second mounting hole 10, the data of concentration, wind pressure, wind speed and the like after the gas is filtered are tested, and then the gas is discharged out after being purified by the purification filter screen in the purification filter screen mounting cylinder 4.
Through the test data of the first mounting holes 9 and the second mounting holes 10, the removal efficiency of the test filter screen on gaseous pollutants can be calculated, and the wind speed, the wind quantity and the wind resistance of the filter screen to be tested are calculated.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (7)
1. The utility model provides a filtration efficiency testing arrangement, includes main part device (1), its characterized in that: the main body device (1) comprises a support detection unit, a mixing filtration unit and a power unit;
the support detection unit comprises a first connecting cylinder (5) and a second connecting cylinder (6), the mixing filter unit comprises a gauze installation cylinder (2), a test filter screen installation cylinder (3) and a purification filter screen installation cylinder (4), and the power unit comprises a fan (8);
the gauze installation cylinder (2) and the test filter screen installation cylinder (3) are respectively located at the left end and the right end of the first connecting cylinder (5), the test filter screen installation cylinder (3) and the purification filter screen installation cylinder (4) are respectively located at the left end and the right end of the second connecting cylinder (6), the second connecting cylinder (6) is located at the left side of the first connecting cylinder (5), and the fan (8) is located at the right end of the purification filter screen installation cylinder (4).
2. The primary filtration efficiency testing device of claim 1, wherein: the right end of the gauze installation cylinder (2) is fixedly connected with the left end of the first connecting cylinder (5), and the inner wall of the right end of the gauze installation cylinder (2) is connected with an installation gauze (7) in a clamping manner.
3. The primary filtration efficiency testing device of claim 1, wherein: the left end of the purification filter screen mounting cylinder (4) is fixedly connected with the right end of the second connecting cylinder (6).
4. The primary filtration efficiency testing device of claim 1, wherein: the outer wall of the fan (8) is fixedly connected with the outer wall of the right end of the purification filter screen mounting cylinder (4).
5. The primary filtration efficiency testing device of claim 1, wherein: the right end of the first connecting cylinder (5) is fixedly connected with the left end of the test filter screen mounting cylinder (3), and the inner wall of the test filter screen mounting cylinder (3) is clamped with a test filter screen.
6. The primary filtration efficiency testing device of claim 1, wherein: the inner wall joint of purification filter screen installation cylinder (4) has purification filter screen.
7. The primary filtration efficiency testing device of claim 1, wherein: the upper surface of first connecting cylinder (5) has seted up first mounting hole (9), the upper surface of second connecting cylinder (6) has seted up second mounting hole (10), first mounting hole (9) with the quantity of second mounting hole (10) is two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223471954.XU CN219038765U (en) | 2022-12-26 | 2022-12-26 | Primary filtration efficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223471954.XU CN219038765U (en) | 2022-12-26 | 2022-12-26 | Primary filtration efficiency testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219038765U true CN219038765U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223471954.XU Active CN219038765U (en) | 2022-12-26 | 2022-12-26 | Primary filtration efficiency testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219038765U (en) |
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- 2022-12-26 CN CN202223471954.XU patent/CN219038765U/en active Active
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