CN117629847A - Air filter windage testing platform - Google Patents
Air filter windage testing platform Download PDFInfo
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- CN117629847A CN117629847A CN202311664743.4A CN202311664743A CN117629847A CN 117629847 A CN117629847 A CN 117629847A CN 202311664743 A CN202311664743 A CN 202311664743A CN 117629847 A CN117629847 A CN 117629847A
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- 238000012360 testing method Methods 0.000 title claims description 15
- 238000001514 detection method Methods 0.000 claims abstract description 115
- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000000712 assembly Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims 1
- 238000004088 simulation Methods 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
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- 241000018646 Pinus brutia Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses an air filter wind resistance detection platform, which comprises a first box body, a second box body and a control device, wherein the first box body and the second box body are connected in a spliced manner, the control device is used for detecting air flow, the inner cavity of the first box body is divided by a partition plate to form a fan installation cavity and a first detection cavity, the partition plate is provided with a vent for installing a variable frequency fan, a fixed plate on the first detection cavity is provided with a first slot, and clamping assemblies used for clamping and fixing a first air filter to be detected are symmetrically arranged on the periphery of the first slot; the inside of second box has the second and detects the chamber, and the second box is equipped with the second slot in the curb plate that keeps away from first box one end, and the periphery symmetry of second slot is provided with the locking subassembly that is used for locking the second air cleaner that awaits measuring. According to the invention, by adopting a splicing and combining mode, the air filters with different specification types can be rapidly and conveniently detected by simulating the use environments with different air supply amounts, and the two air filters can be detected simultaneously, so that the detection efficiency is high, the operation is simple, the cost is low, and the practicability is better.
Description
Technical Field
The invention relates to the technical field of air filter detection equipment, in particular to an air filter windage detection platform.
Background
Air filters, which are generally classified into primary air filters, medium-efficiency air filters, and high-efficiency air filters, have been widely used in various air purification scenes. In the process of producing the air filter, a plurality of technical indexes such as pressure difference values, resistance values and the like need to be strictly controlled, so that a production enterprise can simulate the wind resistance condition of the air filter in a specific use environment (such as actual installation application state) by entrusting a third party, and provide corresponding detection reports.
At present, the conventional detection equipment for detecting the air filters is special detection equipment, so that only one air filter with specific specification can be detected at a time, the detection efficiency is low, the equipment is expensive, and the production enterprises cannot perform quick simulation detection on the air filters with different specifications according to the detection requirements at any time based on the single use function and the use cost of the conventional detection equipment; in addition, when assembling the air filter, a special fixture is needed to clamp the air filter, so that the air filter is inconvenient to assemble and disassemble, and the test time is long.
Disclosure of Invention
The invention aims to provide an air filter windage detection platform, which can simulate different use environments at low cost to rapidly and conveniently detect air filters with various specifications through a splicing and combining mode, can simultaneously detect pressure difference data of two installed air filters to be detected, is convenient to assemble and disassemble, and well solves the problems mentioned in the background art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the wind resistance detection platform of the air filter comprises a first box body, a second box body and a control device, wherein the first box body and the second box body are connected in a spliced mode, and the control device is used for detecting air flow;
the first box body and the second box body are arranged in an open mode at one end of each other in a mutually spliced mode; the inner cavity of the first box body is separated by a partition plate to form a fan installation cavity and a first detection cavity, the partition plate is provided with a vent communicated with the fan installation cavity and the first detection cavity, a variable frequency fan is arranged at one side of the vent close to the fan installation cavity, the top of the first box body is provided with an air outlet with a net cover, one end of the first detection cavity far away from the variable frequency fan is provided with a fixed plate, and the fixed plate is provided with a first slot communicated with the first detection cavity and used for inserting and placing a first air filter to be detected; clamping assemblies for clamping and fixing the first air filter to be tested are symmetrically arranged on the periphery of the first slot;
the inside of the second box body is provided with a second detection cavity, and a side plate of the second box body far away from one end of the first box body is provided with a second slot which is communicated with the second detection cavity and used for inserting and placing a second air filter to be detected; locking components for locking the second air filter to be tested are symmetrically arranged on the periphery of the second slot;
the control device comprises a PLC controller, an air speed sensor, a first differential pressure sensor, a second differential pressure sensor, a control panel and a power supply main switch, wherein the air speed sensor, the first differential pressure sensor, the second differential pressure sensor, the control panel and the power supply main switch are respectively connected with the PLC controller, a first air taking probe and an annular pipeline with a detection hole are arranged in the first detection cavity, a second air taking probe and a third air taking probe are arranged on one side, close to the second detection cavity, of the fixed plate, a fourth air taking probe is arranged on the outer surface of a side plate, far away from one end of the first box, of the second box, the first air taking probe and the second air taking probe are respectively connected with the first differential pressure sensor through rubber pipes, the third air taking probe and the fourth air taking probe are respectively connected with the second differential pressure sensor through rubber pipes, and the annular pipeline is connected with the air speed sensor through rubber pipes.
Further, be provided with a plurality of symmetric distribution's coupling assembling between first box with the second box, first box is being close to the open border of second box and the second box is all equipped with sealing gasket in being close to the open border of first box. Through set up a plurality of coupling assembling of symmetric distribution between first box and second box, so, can make the locking force of exerting between first box and second box all be balanced. Through the sealing gasket that sets up, can improve the connection leakproofness of first box and second box after the concatenation, avoid influencing test data's accuracy.
Further, the connecting assembly comprises a first locking piece, a second locking piece, a bolt and a first nut, wherein the bolt and the first nut are used for locking, the lower portion of the first locking piece is fixedly connected with the first box body, the lower portion of the second locking piece is fixedly connected with the second box body, and connecting holes for the bolt to pass through are correspondingly formed in the upper portion of the first locking piece and the upper portion of the second locking piece. The first box body and the second box body are locked and connected in a matched mode by the bolts and the nuts, so that the operation is convenient, the assembly and the disassembly can be fast, and the detection efficiency is improved.
Further, the clamping assembly comprises a mounting part, a clamping part and a locking assembly, wherein the mounting part is connected in a split mode, the locking assembly is used for connecting the mounting part and the clamping part, the mounting part comprises a perpendicularly connected assembly plate and a connecting plate, the assembly plate is connected with the fixing plate through screws, two draw hooks are symmetrically arranged at one end of the connecting plate far away from the assembly plate, an inlet is formed between the two draw hooks, one end of the clamping part is abutted to a frame of a first air filter to be tested, the other end of the clamping part is connected with one end of the locking assembly, and the other end of the locking assembly is connected with the draw hooks in a buckled mode. The mode of hook buckling connection is adopted, so that rapid assembly and disassembly are facilitated, and the simulation detection efficiency is improved.
Further, locking assembly includes T type pull rod and second nut, T type pull rod includes T type connector and the threaded rod of an organic whole connection, the second nut with the threaded rod is connected, T type connector with the drag hook is connected, the clamping part is equipped with the confession the locating hole that the threaded rod passed.
Further, locking assembly includes swivelling joint's latch segment and locking lever, the one end of locking lever is connected with the screw hole on the second slot periphery, the other end of locking lever has the plectrum of being convenient for twist, the one end of latch segment has the pilot hole that supplies the locking lever to pass, the other end of latch segment and the frame butt of second air cleaner that awaits measuring. The locking bar is rotated by twisting the shifting piece, so that the locking piece can be pressed against the second air filter to be tested, and the aim of quick fixation is fulfilled.
Further, the bottom of the first box body and the bottom of the second box body are provided with a plurality of universal moving wheels. Thus, when the second box body is spliced or opened, the universal moving wheel can be utilized to facilitate the movement of the second box body.
Further, the top of first box is equipped with the first glass board that is located first detection chamber top, the top of second box is equipped with the second glass board that is located second detection chamber top. Thus, the internal condition can be easily and intuitively observed and known during detection.
Further, the access hole communicated with the fan installation cavity is formed in the side walls of the two sides of the first box body, the access hole is provided with a sealing door, a door lock assembly is arranged between the sealing door and the first box body, and the door lock assembly comprises a lock tongue arranged on the sealing door and a lock plate arranged at the edge of the access hole. The maintenance work is convenient to develop through the arranged maintenance hole; and moreover, the sealing door can be locked by twisting the rotary lock tongue, so that the operation is simple.
Further, the outer wall of the first box body is provided with at least one standby air pressure detection port communicated with the first detection cavity, and the standby air pressure detection port cover is provided with a rubber plug. When the manual detection is performed, the rubber plug can be picked, and then the rubber tube connected with the differential pressure meter is connected with the standby air pressure detection port, so that the rubber tube can be compared with the air pressure value automatically detected by the equipment in a manual detection mode, and whether the detection data have larger errors or not is known.
Preferably, the first air filter to be tested is a high-efficiency air filter, and the second air filter to be tested is a primary air filter or a medium-efficiency air filter.
Compared with the prior art, the invention provides the air filter wind resistance detection platform, which has the following beneficial effects:
according to the invention, by adopting a splicing and combining mode and utilizing the spliced second box body, the air filters with different specification types can be rapidly and conveniently detected by simulating the use environments with different air supply amounts, and the two air filters to be detected can be simultaneously installed to simultaneously detect the differential pressure data, so that the use efficiency and the functionality of the wind resistance detection platform are improved, and the wind resistance detection platform has the advantages of high detection efficiency, simplicity in operation and low cost, and better practicability. In addition, through clamping component and locking component that set up, can effectively fix two air cleaner that await measuring after the installation respectively, avoid influencing test data's accuracy because of the pine takes off, install and remove conveniently.
The invention relates to equipment for detecting differential pressure values of an air filter on a simulation site, wherein the space of a position to be detected is designed to completely simulate the actual installation and application state of the air filter.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of a three-dimensional structure of a second box body spliced by the invention;
FIG. 2 is a schematic top view of the second case of the present invention after splicing;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 5 is a schematic diagram of a control device;
FIG. 6 is a schematic view of the installation of a seal door;
FIG. 7 is a schematic diagram of the installation of a second air filter under test;
FIG. 8 is a schematic diagram of the splicing of the second case and the first case;
FIG. 9 is a schematic structural view of a connection assembly;
FIG. 10 is a schematic view of the installation of a first air filter under test;
FIG. 11 is a schematic view of a clamping assembly;
FIG. 12 is a schematic view of the first air filter under test after being mounted in the first housing;
FIG. 13 is a half-sectional view of the first air filter under test after being mounted in the first housing;
FIG. 14 is a schematic illustration of simultaneous detection of two air filters;
FIG. 15 is a schematic diagram of manual testing using a differential pressure gauge.
Reference numerals: 1. a first case; 11. a partition plate; 111. a vent; 12. a fan mounting cavity; 121. an access opening; 122. sealing the door; 123. a bolt; 124. a lock plate; 13. a first detection chamber; 14. an air outlet; 15. a fixing plate; 151. a first slot; 152. a first locating edge; 16. an annular pipe; 161. a detection hole; 17. a variable frequency fan; 18. a first glass plate; 19. a standby air pressure detection port; 191. a rubber plug; 192. a differential pressure gauge; 2. a second case; 21. a second detection chamber; 22. a second slot; 23. a universal moving wheel; 24. a second glass plate; 25. a flow guiding baffle; 26. a second locating edge; 3. a control device; 31. a PLC controller; 32. a wind speed sensor; 33. a first differential pressure sensor; 331. a first air taking probe; 332. a second gas-taking probe; 34. a second differential pressure sensor; 341. a third air taking probe; 342. a fourth air taking probe; 35. a control panel; 36. a power supply main switch; 4. a clamping assembly; 41. a mounting part; 411. an assembly plate; 412. a connecting plate; 413. a drag hook; 414. an inlet is arranged; 42. a clamping part; 421. positioning holes; 422. a flange; 423. a reinforcing part; 43. a locking assembly; 431. a T-shaped pull rod; 4311. a T-shaped connector; 4312. a threaded rod; 432. a second nut; 4321. a circular ring; 5. a locking assembly; 51. a locking piece; 52. a lock lever; 521. a pulling piece; 6. a connection assembly; 61. a first locking member; 62. a second locking member; 63. a bolt; 64. a first nut; 65. a connection hole; 66. an L-shaped plate; 67. avoidance holes; 68. a first screw; 69. a second screw; 7. a sealing gasket; 8. a first air filter to be tested; 9. and a second air filter to be tested.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below by means of detailed embodiments in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 15, the present embodiment provides an air filter windage detection platform, which includes a first box 1 and a second box 2 connected in a spliced manner, and a control device 3 for detecting air flow. The first box body 1 and the second box body 2 are arranged in an open mode at one end of each other; the inner cavity of the first box body 1 is divided by a partition plate 11 to form a fan installation cavity 12 and a first detection cavity 13, the partition plate 11 is provided with a ventilation opening 111 communicated with the fan installation cavity 12 and the first detection cavity 13, a variable frequency fan 17 is arranged at one side of the ventilation opening 111 close to the fan installation cavity 12, an air outlet 14 with a net cover playing a role in protection is arranged at the top of the first box body 1, a fixed plate 15 is arranged at one end of the first detection cavity 13 far away from the variable frequency fan 17, and the fixed plate 15 is provided with a first slot 151 communicated with the first detection cavity 13 and used for inserting and placing a first air filter 8 to be detected; the periphery of the first slot 151 is symmetrically provided with clamping assemblies 4 for clamping and fixing the first air filter 8 to be tested. The second box body 2 is internally provided with a second detection cavity 21, and a side plate at one end, far away from the first box body 1, of the second box body 2 is provided with a second slot 22 which is communicated with the second detection cavity 21 and is used for inserting and placing a second air filter 9 to be detected; the periphery of the second slot 22 is symmetrically provided with locking components 5 for locking the second air filter 9 to be tested. The control device 3 comprises a PLC (programmable logic controller) 31, a wind speed sensor 32, a first differential pressure sensor 33, a second differential pressure sensor 34, a control panel 35 and a power supply main switch 36, wherein the wind speed sensor 32, the first differential pressure sensor 33, the second differential pressure sensor 34, the control panel 35 and the power supply main switch 36 are respectively connected with the PLC 31, a first air taking probe 331 and an annular pipeline 16 with a detection hole 161 are arranged in the first detection cavity 13, a second air taking probe 332 and a third air taking probe 341 are arranged on one side, close to the second detection cavity 21, of the fixed plate 15, a fourth air taking probe 342 is arranged on the outer surface of a side plate far away from one end of the first box 1, the first air taking probe 331 and the second air taking probe 332 are respectively connected with the first differential pressure sensor 33 through rubber pipes, the third air taking probe 341 and the fourth air taking probe 342 are respectively connected with the second differential pressure sensor 34 through rubber pipes, and the annular pipeline 16 is connected with the wind speed sensor 32 through rubber pipes.
In the embodiment, the variable frequency fan 17 adopts a German EBM brand digital EC fan, can receive 0-10V signals and realizes 0-100% stepless regulation. The first air filter 8 to be tested is a high-efficiency air filter, and the second air filter 9 to be tested is a primary air filter or a medium-efficiency air filter. The first differential pressure sensor 33 corresponds to the differential pressure value between the two ends of the high-efficiency air filter, the first air-taking probe 331 corresponds to one end of the negative pressure, and the second air-taking probe 332 corresponds to one end of the positive pressure. The second differential pressure sensor 34 correspondingly detects the differential pressure value at two ends of the primary air filter or the differential pressure value at two ends of the secondary air filter, the third air taking probe 341 corresponds to one end of the negative pressure, and the fourth air taking probe 342 corresponds to one end of the positive pressure. The wind speed sensor 32 can monitor the feedback air supply amount and the wind speed in real time by using the detection hole 161 on the annular duct 16. The model of the PLC controller 31 is an ACT320 module. The control panel 35 includes a touch screen, and can set parameters such as the required operation air volume for detection and determine the start. The maximum set air quantity of the air filter wind resistance detection platform of the embodiment can reach 6000m 3 And/h, all set values meeting the detection requirements of the standard conventional air filter can be met; the off-board residual pressure range is 0-600 Pa, and can meet the detection requirement value of a standard conventional air filter.
When the air filter to be tested is tested, the operation parameters are set on the control panel through the environment to be simulated, so that the variable-frequency fan can provide corresponding wind speed and wind quantity, and the specific use environment is provided for simulating and detecting the wind resistance condition of the air filter to be tested. Through adopting the mode of concatenation combination, utilize the second box of installing the concatenation additional to install an air cleaner more and detect, just so can simulate different air supply volume service environment and detect different specification types's air cleaner fast and conveniently, and can also detect differential pressure data to two air cleaner that await measuring simultaneously, improved windage testing platform's availability factor and functionality, and detection efficiency is high, easy operation and with low costs, has better practicality. In addition, through clamping component and locking component that set up, can effectively fix two air cleaner that await measuring after the installation respectively, avoid influencing test data's accuracy because of the pine takes off.
In some specific embodiments, referring to fig. 1 to 3, 8, 9 and 14, a plurality of symmetrically distributed connection assemblies 6 are disposed between the first case 1 and the second case 2, so that locking forces applied between the first case 1 and the second case 2 are balanced. The first box 1 is being close to the open border of second box 2 and the second box 2 is all equipped with sealing gasket 7 near the open border of first box 1, can improve the connection leakproofness of first box and second box after the concatenation, avoids influencing test data's accuracy. Specifically, the total number of the connecting components 6 is six, and two connecting components are respectively arranged on the two side surfaces and the top surface of the first box body and the second box body. The connecting assembly 6 comprises a first locking element 61, a second locking element 62, a bolt 63 for locking and a first nut 64, wherein the lower part of the first locking element 61 is fixedly connected with the first box body 1 through a first screw 68, the lower part of the second locking element 62 is fixedly connected with the second box body 2 through a second screw 69, and connecting holes 65 for the bolt 63 to pass through are correspondingly formed in the upper part of the first locking element 61 and the upper part of the second locking element 62. The first box body and the second box body are locked and connected in a matched mode of bolts and nuts, and the split type connecting structure and the split type connecting mode are adopted, so that the operation is convenient, the assembly and the disassembly can be fast, and the detection efficiency is improved.
As a modified embodiment, as shown in fig. 9, an L-shaped plate 66 is integrally bent and connected to the upper portion of the first locking member 61 and the upper portion of the second locking member 62, and the L-shaped plate 66 is correspondingly provided with a relief hole 67 through which the bolt 63 passes. Corresponding avoidance holes are formed in the L-shaped plate through the L-shaped plate, so that the connection strength of the connecting assembly is improved, and the quick assembly and disassembly of the bolts are facilitated.
As a preferred embodiment, as shown in fig. 9, the first locking member 61 and the second locking member 62 are symmetrically distributed sheet metal parts formed by bending.
In some specific embodiments, referring to fig. 11 to 14, the clamping assembly 4 includes a mounting portion 41, a clamping portion 42, and a locking assembly 43 for connecting the mounting portion 41 and the clamping portion 42, where the mounting portion 41 includes a mounting plate 411 and a connecting plate 412 that are vertically connected, the mounting plate 411 is connected with the fixing plate 15 by a screw, two hooks 413 are symmetrically disposed at one end far from the mounting plate 411 on the connecting plate 412, an inlet 414 is disposed between the two hooks 413, one end of the clamping portion 42 abuts against a frame of the first air filter 8 to be tested, the other end of the clamping portion 42 is connected with one end of the locking assembly 43, and the other end of the locking assembly 43 is buckled with the hooks 413. The first slot 151 is provided with a first positioning edge 152 distributed in an annular shape at one end facing the first detection cavity 13, and a sealing rubber strip is adhered to the first positioning edge 152. The mode of hook buckling connection is adopted, so that rapid assembly and disassembly are facilitated, and the simulation detection efficiency is improved. Specifically, the locking assembly 43 includes a T-shaped pull rod 431 and a second nut 432, the T-shaped pull rod 431 includes a T-shaped connector 4311 and a threaded rod 4312 that are integrally connected, the second nut 432 is connected to the threaded rod 4312, the T-shaped connector 4311 is connected to the drag hook 413, and the clamping portion 42 is provided with a positioning hole 421 through which the threaded rod 4312 passes. The T-shaped connector on the T-shaped pull rod can be buckled and connected with the drag hook, and the threaded rod can pass through the positioning hole and then be matched and locked with the second nut, so that the clamping part can be pressed against the frame of the first air filter to be tested, and various products (such as a flat plate type, a folding type, a bag type, a box type and the like) can be detected; through the cooperation of threaded rod and second nut, can also adapt the air cleaner of different thickness better and adjust the locking, can satisfy various types different frame thickness products such as 10mm, 21mm, 46mm, 96mm, 120mm, 150mm, 220mm, 292 mm.
As a modified embodiment, as shown in fig. 11, the clamping portion 42 is provided with a flange 422 at an end far from the positioning hole 421, and the flange 422 is vertically distributed with the clamping portion 42. When the air filter is installed, the flange can be used for hooking the frame of the air filter to be tested, so that the anti-falling effect is achieved.
As a modified embodiment, as shown in fig. 11, the clamping portion 42 is provided with a reinforcing portion 423 at one end near the positioning hole 421, and the reinforcing portion 423 is perpendicularly connected to the clamping portion 42. Through the reinforcing part that sets up, owing to clamping part and reinforcing part are perpendicular distribution, have an contained angle of ninety degrees, both be convenient for with clamping part butt fixed first air cleaner that awaits measuring, improve the stability of centre gripping again.
As a modified embodiment, as shown in fig. 11, the second nut 432 is provided with a ring 4321 for facilitating twisting, so that the second nut 432 is twisted and rotated.
As a preferred embodiment, as shown in fig. 12, four clamping assemblies 4 are provided, so that the first air filter to be tested can be clamped and fixed more stably, and the stress is uniform.
In some specific embodiments, referring to fig. 1, 3 and 7, the locking assembly 5 includes a locking block 51 and a locking rod 52 that are rotatably connected, one end of the locking rod 52 is connected with a threaded hole on the periphery of the second slot 22, the other end of the locking rod 52 has a pulling piece 521 that is convenient for twisting, one end of the locking block 51 has an assembly hole through which the locking rod 52 passes, and the other end of the locking block 51 abuts against the frame of the second air filter 9 to be tested. The second slot 22 is provided with a second positioning edge 26 which is distributed in an annular shape at one end facing the second detection cavity 21, and a sealing rubber strip is adhered to the second positioning edge 26. The locking bar is rotated by twisting the shifting piece, so that the locking piece can be pressed against the second air filter to be tested, and the aim of quick fixation is fulfilled.
As a preferred embodiment, as shown in fig. 1, four locking assemblies 5 are provided, so that the second air filter to be tested can be clamped and fixed more stably, and the stress is uniform.
In some specific embodiments, referring to fig. 1, the bottom of the first case 1 and the bottom of the second case 2 are provided with a plurality of universal moving wheels 23. Thus, when the second box body is spliced or opened, the universal moving wheel can be utilized to facilitate the movement of the second box body. As an example, the bottom of the first casing 1 and the bottom of the second casing 2 are each provided with four universal moving wheels 23.
In some embodiments, referring to fig. 1, the top of the first case 1 is provided with a first glass plate 18 above the first detection chamber 13, and the top of the second case 2 is provided with a second glass plate 24 above the second detection chamber 21. Thus, the internal condition can be easily and intuitively observed and known during detection.
In some specific embodiments, referring to fig. 6, two side walls of the first case 1 are provided with access holes 121 that are communicated with the fan installation cavity 12, the access holes 121 are provided with sealing doors 122, a door lock assembly is arranged between the sealing doors 122 and the first case 1, and the door lock assembly includes a lock tongue 123 disposed on the sealing doors 122 and a lock plate 124 disposed at the edge of the access holes 121. The maintenance work is convenient to develop through the arranged maintenance hole; and moreover, the sealing door can be locked by twisting the rotary lock tongue, so that the operation is simple.
In some specific embodiments, referring to fig. 1 to 3 and 15, at least one spare air pressure detecting port 19 communicating with the first detecting cavity 13 is provided on the outer wall of the first case 1, and a rubber plug 191 is provided on the spare air pressure detecting port 19. During manual detection, the rubber plug 191 can be removed, and then the rubber tube connected with the differential pressure meter 192 is connected with the standby air pressure detection port 19, so that the rubber tube can be compared with the air pressure value automatically detected by the equipment in a manual detection mode, and whether the detected data have larger errors or not is known. Specifically, two standby air pressure detecting ports 19 are provided, which are respectively located at two sides of the fixing plate 15 and can be respectively communicated to the first detecting cavity 13 and the second detecting cavity 21.
In some specific embodiments, referring to fig. 8, the second detection chamber 21 is symmetrically provided with parallel flow guiding baffles 25 inside, and the flow guiding baffles 25 are vertically disposed between the first slot 151 and the second slot 22. Through the setting of water conservancy diversion baffle, can play certain drainage effect to the air current in the second detection chamber, can guide the frequency conversion fan of flow direction vent department as far as possible with the air current that flows from the second air cleaner that awaits measuring.
The use of the invention is described as follows:
(1) When it is necessary to perform the simulation test only for the high efficiency air filter, referring to fig. 10 to 13, the first air filter 8 to be tested (high efficiency air filter) is pushed into the first slot 151 on the fixing plate 15, and the first air filter 8 to be tested is fixed by the clamp assembly 4. As shown in fig. 13, by operating the start operation detection on the control panel 35, since the operation parameters are set in advance according to the simulated environment, after the touch click starts to operate, the variable frequency fan 17 operates to pump air at a specific rotational speed, forming an air flow with a certain air supply volume, and operates stably at this air supply volume, at this time, the first air intake probe 331 and the second air intake probe 332 located at both ends of the first air filter 8 (high efficiency air filter) to be tested detect the air pressure in real time and feed back to the control panel 35, so that the differential pressure value of the first air filter 8 to be tested in the current state is displayed on the control panel 35; then, the operation air quantity required by the detection is adjusted on the control panel 35, the operation state of the variable frequency fan 17 is automatically adjusted after receiving the adjustment signal, after the operation is stable, the control panel 35 receives the pressure difference value data of the first air filter 8 to be tested in a new state again, so that the required pressure difference value curve of the first air filter 8 to be tested can be obtained by regularly adjusting and setting different operation air quantities, thereby simulating and knowing the windage condition of the first air filter 8 to be tested in different operation environments, and further judging and knowing whether the product is qualified. The method comprises the steps of detecting the air filter pressure difference value of a new air filter to be detected under specified running air quantity, wherein the corresponding pressure difference value of the new air filter to be detected is the initial resistance of the air filter under the specified air quantity; when the designated running air quantity is the rated air quantity of the air filter, the corresponding measured differential pressure value is the initial resistance of the air filter under the rated air quantity.
(2) When the simulation detection is required only for the primary air filter or the middle-effect air filter, referring to fig. 7, the second air filter 9 to be detected (such as the primary air filter) is pushed into the second slot 22, and the locking component 5 is used to fix the second air filter 9 to be detected; subsequently, referring to fig. 8, the rubber tube connected to the fourth air intake probe 342 on the second casing 2 is connected to the corresponding rubber tube on the first casing 1, and then the second casing 2 is pushed to be assembled with the first casing 1 in a spliced manner, and is locked by using the plurality of connection assemblies 6, so that the first casing 1 and the second casing 2 are connected as a whole, as shown in fig. 1 and 2. Referring to fig. 3, by operating the start operation detection on the control panel 35, since the operation parameters are set according to the simulated environment input in advance, after the touch click starts to operate, the variable frequency fan 17 operates to pump air at a specific rotation speed, forms an air flow with a certain air supply amount, and operates stably under the air supply amount, at this time, the third air intake probe 341 and the fourth air intake probe 342 located at both ends of the second air filter 9 to be tested (e.g., the primary air filter) detect air pressure in real time and feed back to the control panel 35, so that the differential pressure value of the second air filter 9 to be tested in the current state is displayed on the control panel 35; and then, the required pressure difference value curve of the second air filter 9 to be tested can be obtained by regularly adjusting and setting different running air volumes through repeated operation, so that the windage condition of the second air filter 9 to be tested under different running environments is simulated and known, and whether the product is qualified or not is judged and known.
(3) In addition, the first box body and the second box body can be respectively provided with one air filter to be tested according to the requirements so as to simultaneously simulate and detect the windage conditions of the two air filters. Specifically, referring to fig. 10 to 12, the first air filter 8 to be tested (high efficiency air filter) is pushed into the first slot 151 on the fixing plate 15, the first air filter 8 to be tested is fixed by using the clamping assembly 4, then the second air filter 9 to be tested (such as a primary air filter) is pushed into the second slot 22 as shown in fig. 7, the second air filter 9 to be tested is fixed by using the locking assembly 5, then the rubber tube connected with the fourth air taking probe 342 on the second box 2 is connected with the corresponding rubber tube on the first box 1, and then the second box 2 is pushed to be spliced and assembled with the first box 1, and the first box 1 and the second box 2 are connected into a whole by using the plurality of connecting assemblies 6. Finally, referring to fig. 14, by operating and starting operation detection on the control panel 35, and by regularly adjusting and setting different operation air volumes through repeated operations, a required pressure difference value curve can be obtained, so that wind resistance conditions of two air filters to be detected under different operation environments are obtained through simulation, and the detection efficiency is greatly improved.
(4) In the detection process, in order to know whether the detected data has larger errors, the detection data can be verified by a manual detection mode. Specifically, referring to fig. 15, when analog detection is required for the high-efficiency air filter, the rubber plug 191 on the standby air pressure detection port 19 communicated with the first detection cavity 13 is picked up, and then the rubber tube connected with the differential pressure meter 192 is connected with the standby air pressure detection port 19, so that the rubber tube can be compared with the air pressure value automatically detected by the device in a manual detection mode, so that whether the detected data have a larger error or not is known, and the accuracy of the detected data is further ensured. Likewise, when the simulation detection is needed only for the primary air filter or the medium-efficiency air filter, the rubber plug on the standby air pressure detection port communicated with the second detection cavity is picked up, and then the rubber plug connected with the differential pressure meter is connected with the standby air pressure detection port for reading. When the windage conditions of the two air filters are simulated and detected simultaneously, the rubber tube connected with the differential pressure meter can be sequentially connected with the two standby air pressure detection ports for reading.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides an air cleaner windage testing platform, includes first box and second box that concatenation is connected and is used for detecting the controlling means of air current, its characterized in that:
the first box body and the second box body are arranged in an open mode at one end of each other in a mutually spliced mode;
the inner cavity of the first box body is separated by a partition plate to form a fan installation cavity and a first detection cavity, the partition plate is provided with a vent communicated with the fan installation cavity and the first detection cavity, a variable frequency fan is arranged at one side of the vent close to the fan installation cavity, the top of the first box body is provided with an air outlet with a net cover, one end of the first detection cavity far away from the variable frequency fan is provided with a fixed plate, and the fixed plate is provided with a first slot communicated with the first detection cavity and used for inserting and placing a first air filter to be detected; clamping assemblies for clamping and fixing the first air filter to be tested are symmetrically arranged on the periphery of the first slot;
the inside of the second box body is provided with a second detection cavity, and a side plate of the second box body far away from one end of the first box body is provided with a second slot which is communicated with the second detection cavity and used for inserting and placing a second air filter to be detected; locking components for locking the second air filter to be tested are symmetrically arranged on the periphery of the second slot;
the control device comprises a PLC controller, an air speed sensor, a first differential pressure sensor, a second differential pressure sensor, a control panel and a power supply main switch, wherein the air speed sensor, the first differential pressure sensor, the second differential pressure sensor, the control panel and the power supply main switch are respectively connected with the PLC controller, a first air taking probe and an annular pipeline with a detection hole are arranged in the first detection cavity, a second air taking probe and a third air taking probe are arranged on one side, close to the second detection cavity, of the fixed plate, a fourth air taking probe is arranged on the outer surface of a side plate, far away from one end of the first box, of the second box, the first air taking probe and the second air taking probe are respectively connected with the first differential pressure sensor through rubber pipes, the third air taking probe and the fourth air taking probe are respectively connected with the second differential pressure sensor through rubber pipes, and the annular pipeline is connected with the air speed sensor through rubber pipes.
2. The air filter windage detection platform of claim 1, wherein: the connecting assembly is characterized in that a plurality of symmetrically distributed connecting assemblies are arranged between the first box body and the second box body, and sealing gaskets are arranged on the first box body close to the opening edge of the second box body and the second box body close to the opening edge of the first box body.
3. The air filter windage detection platform of claim 2, wherein: the connecting assembly comprises a first locking piece, a second locking piece, a bolt and a first nut, wherein the bolt and the first nut are used for locking, the lower portion of the first locking piece is fixedly connected with the first box body, the lower portion of the second locking piece is fixedly connected with the second box body, and connecting holes for the bolt to pass through are correspondingly formed in the upper portion of the first locking piece and the upper portion of the second locking piece.
4. The air filter windage detection platform of claim 1, wherein: the clamping assembly comprises a mounting part, a clamping part and a locking assembly, wherein the mounting part is connected in a split mode, the locking assembly is used for connecting the mounting part and the clamping part, the mounting part comprises a perpendicularly connected assembly plate and a connecting plate, the assembly plate is connected with the fixing plate through screws, two draw hooks are symmetrically arranged at one end of the connecting plate away from the assembly plate, an inlet is formed between the two draw hooks, one end of the clamping part is abutted to a frame of a first air filter to be tested, the other end of the clamping part is connected with one end of the locking assembly, and the other end of the locking assembly is connected with the draw hooks in a buckled mode.
5. The air filter windage detection platform of claim 4, wherein: the locking assembly comprises a T-shaped pull rod and a second nut, the T-shaped pull rod comprises a T-shaped connector and a threaded rod which are integrally connected, the second nut is connected with the threaded rod, the T-shaped connector is connected with the draw hook, and the clamping part is provided with a positioning hole for the threaded rod to pass through.
6. The air filter windage detection platform of claim 1, wherein: the locking assembly comprises a locking block and a locking rod which are connected in a rotating mode, one end of the locking rod is connected with a threaded hole in the periphery of the second slot, a poking piece which is convenient to twist is arranged at the other end of the locking rod, an assembly hole for the locking rod to pass through is formed in one end of the locking block, and the other end of the locking block is in butt joint with a frame of the second air filter to be tested.
7. The air filter windage detection platform of claim 1, wherein: the bottom of the first box body and the bottom of the second box body are provided with a plurality of universal moving wheels.
8. The air filter windage detection platform of claim 1, wherein: the top of first box is equipped with the first glass board that is located first detection chamber top, the top of second box is equipped with the second glass board that is located second detection chamber top.
9. The air filter windage detection platform of claim 1, wherein: the side walls of the two sides of the first box body are provided with an access hole communicated with the fan installation cavity, the access hole is provided with a sealing door, the door lock assembly comprises a lock tongue arranged on the sealing door and a lock plate arranged at the edge of the access hole.
10. The air filter windage detection platform according to any one of claims 1-9, wherein: the outer wall of the first box body is provided with at least one standby air pressure detection port communicated with the first detection cavity, and the standby air pressure detection port cover is provided with a rubber plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311664743.4A CN117629847A (en) | 2023-12-06 | 2023-12-06 | Air filter windage testing platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311664743.4A CN117629847A (en) | 2023-12-06 | 2023-12-06 | Air filter windage testing platform |
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| CN117629847A true CN117629847A (en) | 2024-03-01 |
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| CN202311664743.4A Pending CN117629847A (en) | 2023-12-06 | 2023-12-06 | Air filter windage testing platform |
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