CN112748054A - Non-woven fabric filtering performance detection method and detection device - Google Patents
Non-woven fabric filtering performance detection method and detection device Download PDFInfo
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- CN112748054A CN112748054A CN202011572052.8A CN202011572052A CN112748054A CN 112748054 A CN112748054 A CN 112748054A CN 202011572052 A CN202011572052 A CN 202011572052A CN 112748054 A CN112748054 A CN 112748054A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
Abstract
The invention discloses a method and a device for detecting the filtering performance of non-woven fabrics, wherein a first detection device and a second detection device are arranged on a detection table, a water pump is started to convey mixed liquid in a water tank to a non-woven fabric sample on a clamping ring through a conveying pipe, the mixed liquid is filtered through the non-woven fabric sample, so as to compare the mixed liquid in the water tank with the mixed liquid in the collecting tank, thereby detecting the filterability of the sampled non-woven fabrics to the liquid, starting the fan, opening the ash feeding hopper, so that the dirty air mixed with the air and the dust is conveyed to the non-woven fabric sample on the clamping piece through the air supply pipe, and the non-woven fabric sample on the clamping ring is tested, thereby detect the filterability of the non-woven fabrics to the foul gas that is extracted to the filterability of more comprehensive detection non-woven fabrics.
Description
Technical Field
The invention relates to the technical field of non-woven fabric performance detection devices, in particular to a non-woven fabric filtering performance detection method and a non-woven fabric filtering performance detection device.
Background
The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity, no irritation, rich color, low price, recycling and the like, for example, polypropylene (pp) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, line laying and hot-pressing coiling, the non-woven fabric is usually required to be detected in the filtering performance after production and forming, but most of the existing non-woven fabric filtering performance detection devices are single detection, and the detection result is not comprehensive enough.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the filtering performance of a non-woven fabric, and aims to solve the technical problems that most of the conventional non-woven fabric filtering performance detecting devices in the prior art are single detection and the detection result is not comprehensive enough.
In order to achieve the purpose, the non-woven fabric filtering performance detection device adopted by the invention comprises a support frame, a test bench, a first test device and a second test device, wherein the test bench is detachably connected with the support frame and is positioned above the support frame, the first test device and the second test device are arranged on the test bench, the first test device comprises a water tank, a water pump, a conveying pipe, a mounting frame, a clamping ring and a collecting box, the mounting frame is detachably connected with the test bench and is positioned above the test bench, the clamping ring is detachably connected with the mounting frame and is parallel to the test bench, the water tank is further arranged on the test bench, the water inlet end of the water pump is connected with a pipeline of the water tank, the conveying pipe is arranged at the water supply end of the water pump, and one end of the conveying pipe, which is far away from the water pump, is detachably connected with the mounting frame, the inspection bench is also provided with a collecting box which corresponds to the clamping ring;
the second verifying attachment includes ash feeding bucket, fan, blast pipe and holder, the holder with the connection can be dismantled to the mounting bracket, and is located the mounting bracket is kept away from the one end of grip ring, the fan with the connection can be dismantled to the checkout stand, the one end of blast pipe with the connection can be dismantled to the air supply end of fan, the other end of blast pipe with the connection can be dismantled to the mounting bracket, and is located the below of holder, be provided with on the air inlet end of fan ash feeding bucket.
Wherein, the mounting bracket includes bottom plate, upstand, first mount and second mount, the bottom plate with checkout stand threaded connection, the upstand with bottom plate fixed connection, and be located the top of bottom plate, set gradually by supreme down on the upstand first mount with the second mount, first mount with the connection can be dismantled to the conveyer pipe, and be located the conveyer pipe is close to the one end of grip ring, the second mounting with the connection can be dismantled to the blast pipe, and be located the blast pipe is close to the one end of holder.
The first fixing frame and the second fixing frame respectively comprise a cantilever and fixing rings, each cantilever is fixedly connected with the vertical column and respectively located on two sides of the vertical column, and the fixing rings are fixedly connected with the cantilevers and located at one ends of the vertical columns.
The clamping ring comprises a first connecting arm, a placing ring, a supporting ring, a connecting shaft and a screw cap, one end of the first connecting arm is fixedly connected with the vertical column, the other end of the first connecting arm is fixedly connected with the placing ring, the placing ring is corresponding to the fixing ring on the first fixing frame, through holes are formed in two ends of the placing ring, the connecting shaft is arranged at two ends of the supporting ring, the connecting shaft penetrates through the through holes, threads are arranged at one end, far away from the supporting ring, of the connecting shaft, and the screw cap is matched with the threads.
The clamping piece comprises a second connecting arm, a placing plate and a supporting plate, one end of the second connecting arm is fixedly connected with the vertical column, the other end of the second connecting arm is fixedly connected with the placing plate, the placing plate corresponds to the fixing ring on the second fixing frame, a rotating groove is formed in the placing plate, a rotating shaft is arranged in the rotating groove, the supporting plate is movably connected with the rotating shaft, and detecting holes are formed in the placing plate and the supporting plate.
And limiting blocks are arranged at one end of the conveying pipe close to the clamping ring and one end of the blast pipe close to the clamping piece.
The invention also provides a non-woven fabric filtering performance detection method adopting the non-woven fabric filtering performance detection device, which comprises the following steps:
placing the sampled non-woven fabric sample on the abutting ring, enabling the connecting shaft to penetrate through the through hole, and screwing the screw cap, so that the non-woven fabric sample is clamped between the placing ring and the abutting ring in a pocket shape;
starting the water pump, conveying the mixed liquid in the water tank to a non-woven fabric sample between the placing ring and the abutting ring through the conveying pipe, and filtering the mixed liquid by using the non-woven fabric sample;
comparing the mixed liquid in the water tank with the mixed liquid in the collecting tank, thereby detecting the filterability of the sampled non-woven fabric to the liquid;
placing the sampled non-woven fabric sample in the rotating groove, and rotating the abutting plate to enable the non-woven fabric sample to be clamped between the placing plate and the abutting plate;
starting the fan, opening the dust feeding hopper, conveying the dirty gas mixed with air and dust to the non-woven fabric sample on the clamping piece through the air supply pipe, and performing air filtration on the dirty gas by using the non-woven fabric sample;
the filtered nonwoven fabric sample was examined to detect the filterability of the extracted nonwoven fabric to the dirty gas.
The invention has the beneficial effects that: the water inlet end of the water pump is connected with the water tank pipeline, the water delivery end of the water pump is provided with the delivery pipe, one end of the delivery pipe, far away from the water pump, is detachably connected with the mounting frame, the collecting box corresponds to the clamping ring, the fan is detachably connected with the inspection table, one end of the air supply pipe is detachably connected with the air supply end of the fan, the other end of the air supply pipe is detachably connected with the mounting frame, the air inlet end of the fan is provided with the ash feeding hopper, the water pump is started to convey the mixed liquid in the water tank to the non-woven fabric sample on the clamping ring through the delivery pipe, the mixed liquid is filtered through the non-woven fabric sample, the mixed liquid in the water tank is compared with the mixed liquid in the collecting box, and the filterability of the sampled non-woven fabric to the liquid, the start the fan is opened send the ash bucket for dirty gas after air and dust mix passes through the blast pipe is carried to on the non-woven fabrics sample on the holder, through right non-woven fabrics sample on the grip ring inspects, thereby detects out the filterability of the non-woven fabrics to dirty gas by the extraction, thereby more comprehensive detection non-woven fabrics's filtration performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the nonwoven fabric filtration performance test apparatus of the present invention.
FIG. 2 is a front view of the nonwoven fabric filtration performance test apparatus of the present invention.
Fig. 3 is a schematic structural view of the mount of the present invention.
Fig. 4 is an enlarged view of a portion of the structure of fig. 3 a according to the present invention.
Fig. 5 is a schematic view of the structure of the air supply duct of the present invention.
FIG. 6 is a flowchart showing the steps of a nonwoven fabric filtration performance detection method using the nonwoven fabric filtration performance detection apparatus of the present invention.
1-supporting frame, 2-inspection bench, 3-water tank, 4-water pump, 5-conveying pipe, 6-mounting rack, 7-clamping ring, 8-collecting box, 9-ash feeding bucket, 10-blower, 11-blast pipe, 12-clamping piece, 13-bottom plate, 14-vertical column, 15-first fixing rack, 16-second fixing rack, 17-cantilever, 18-fixing ring, 19-first connecting arm, 20-placing ring, 21-supporting ring, 22-connecting shaft, 23-nut, 24-second connecting arm, 25-placing plate, 26-supporting plate, 27-rotating groove, 28-detection hole, 29-limiting block, 30-heating pipe, 31-first temperature sensor, 32-electric heating wire, 33-second temperature sensor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the invention provides a non-woven fabric filtering performance detection device, which comprises a support frame 1, a test platform 2, a first test device and a second test device, wherein the test platform 2 is detachably connected with the support frame 1 and is positioned above the support frame 1, the test platform 2 is provided with the first test device and the second test device, the first test device comprises a water tank 3, a water pump 4, a delivery pipe 5, a mounting frame 6, a clamping ring 7 and a collecting box 8, the mounting frame 6 is detachably connected with the test platform 2 and is positioned above the test platform 2, the clamping ring 7 is detachably connected with the mounting frame 6 and is parallel to the test platform 2, the test platform 2 is further provided with the water tank 3, a water inlet end of the water pump 4 is connected with the water tank 3 through a pipeline, a water delivery end of the water pump 4 is provided with the delivery pipe 5, one end of the conveying pipe 5, which is far away from the water pump 4, is detachably connected with the mounting frame 6 and is positioned above the clamping ring 7, the inspection bench 2 is also provided with the collecting box 8, and the collecting box 8 corresponds to the clamping ring 7;
the second verifying attachment includes ash feeding bucket 9, fan 10, blast pipe 11 and holder 12, holder 12 with the connection can be dismantled to mounting bracket 6, and is located mounting bracket 6 is kept away from the one end of grip ring 7, fan 10 with the connection can be dismantled to checkout stand 2, the one end of blast pipe 11 with the connection can be dismantled to the air supply end of fan 10, the other end of blast pipe 11 with the connection can be dismantled to mounting bracket 6, and is located the below of holder 12, be provided with on the air inlet end of fan 10 ash feeding bucket 9.
In this embodiment, the inspection bench 2 is further provided with the water tank 3, the water inlet end of the water pump 4 is connected with the water tank 3 through a pipeline, the water feeding end of the water pump 4 is provided with the delivery pipe 5, one end of the delivery pipe 5 far away from the water pump 4 is detachably connected with the mounting frame 6 and is positioned above the clamping ring 7, the inspection bench 2 is further provided with the collection box 8, the collection box 8 corresponds to the clamping ring 7, the fan 10 is detachably connected with the inspection bench 2, one end of the blast pipe 11 is detachably connected with the air feeding end of the fan 10, the other end of the blast pipe 11 is detachably connected with the mounting frame 6 and is positioned below the clamping piece 12, the air inlet end of the fan 10 is provided with the ash feeding hopper 9, the water pump 4 is started to pass the mixed liquid in the water tank 3 through the delivery pipe 5, carry to on the non-woven fabrics sample on the grip ring 7, filter mixed liquid through the non-woven fabrics sample, thereby with the mixed liquid in the water tank 3 with mixed liquid in the collecting box 8 contrasts, thereby detects out the filterability of the non-woven fabrics to liquid that is sampled, starts fan 10 opens send ash bucket 9 for dirty gas after air and dust mix passes through blast pipe 11 is carried to on the non-woven fabrics sample on the holder 12, through right the non-woven fabrics sample on the grip ring 7 inspects, thereby detects out the filterability of the non-woven fabrics to dirty gas that is extracted, thereby the filterability of more comprehensive detection non-woven fabrics.
Further, the mounting frame 6 comprises a bottom plate 13, a vertical column 14, a first fixing frame 15 and a second fixing frame 16, the bottom plate 13 is in threaded connection with the inspection table 2, the vertical column 14 is fixedly connected with the bottom plate 13 and located above the bottom plate 13, the first fixing frame 15 and the second fixing frame 16 are sequentially arranged on the vertical column 14 from bottom to top, the first fixing frame 15 is detachably connected with the conveying pipe 5 and located at one end, close to the clamping ring 7, of the conveying pipe 5, and the second fixing member is detachably connected with the air supply pipe 11 and located at one end, close to the clamping member 12, of the air supply pipe 11.
In this embodiment, through bottom plate 13 will mounting bracket 6 is fixed on checkout stand 2, upstand 14 with bottom plate 13 fixed connection adopts the integrated into one piece technique to make during the manufacturing, and the structure is more firm, first mount 15 supports conveyer pipe 5, second mount 16 supports blast pipe 11 for when examining the non-woven fabrics sample, conveyer pipe 5 with blast pipe 11 can not take place the skew, and the structure is more stable.
Further, the first fixing frame 15 and the second fixing frame 16 both include a cantilever 17 and a fixing ring 18, each cantilever 17 is fixedly connected to the vertical column 14 and respectively located at two sides of the vertical column 14, and the fixing ring 18 is fixedly connected to the cantilever 17 and located at one end of the cantilever 17 far away from the vertical column 14.
In this embodiment, the fixing ring 18 is fixedly connected to the cantilever 17, and the cantilever 17 is fixedly connected to the upstand 14, and is manufactured by an integral molding technique, so that the structure is firmer.
Further, the clamping ring 7 comprises a first connecting arm 19, a placing ring 20, a supporting ring 21, a connecting shaft 22 and a screw cap 23, one end of the first connecting arm 19 is fixedly connected with the vertical column 14, the other end of the first connecting arm 19 is fixedly connected with the placing ring 20, the placing ring 20 corresponds to the fixing ring 18 on the first fixing frame 15, through holes are formed in two ends of the placing ring 20, the connecting shaft 22 is arranged at two ends of the supporting ring 21, the connecting shaft 22 penetrates through the through holes, threads are arranged at one end, away from the supporting ring 21, of the connecting shaft 22, and the screw cap 23 is matched with the threads.
In the present embodiment, the nonwoven fabric sample is placed on the holding ring 21 so that the connecting shaft 22 penetrates the through hole, and the nut 23 is tightened to clamp the nonwoven fabric sample between the placing ring 20 and the holding ring 21 in a pocket shape, so that the mixed liquid conveyed by the conveying pipe 5 is filtered, and the filterability of the nonwoven fabric sample to the liquid is detected.
Further, the clamping member 12 includes a second connecting arm 24, a placing plate 25 and a supporting plate 26, one end of the second connecting arm 24 is fixedly connected to the vertical post 14, the other end of the second connecting arm 24 is fixedly connected to the placing plate 25, the placing plate 25 corresponds to the fixing ring 18 on the second fixing frame 16, a rotating groove 27 is formed in the placing plate 25, a rotating shaft is arranged in the rotating groove 27, the supporting plate 26 is movably connected to the rotating shaft, and detecting holes 28 are formed in the placing plate 25 and the supporting plate 26.
In the present embodiment, the non-woven fabric sample is placed in the rotating groove 27, and the abutting plate 26 is rotated so that the non-woven fabric sample is sandwiched between the placing plate 25 and the abutting plate 26, whereby the dirty gas blown out from the air blowing pipe 11 is filtered, and the gas filterability of the non-woven fabric sample is detected.
Furthermore, a limiting block 29 is arranged at one end of the conveying pipe 5 close to the clamping ring 7 and one end of the blast pipe 11 close to the clamping piece 12.
In this embodiment, the stopper 29 is screwed to the corresponding delivery pipe 5 and the corresponding blower pipe 11, so that the delivery pipe 5 and the corresponding blower pipe 11 do not fall off from the corresponding first fixing frame 15 and the second fixing frame 16.
Further, the first temperature control device is arranged on the water tank 3, the first temperature control device comprises a heating pipe 30 and a first temperature sensor 31, the heating pipe 30 is arranged inside the water tank 3, and the first temperature sensor 31 is arranged outside the water tank 3.
In this embodiment, the heating pipe 30 heats the mixed liquid in the water tank 3, so that the temperature of the mixed liquid sucked by the delivery pipe 5 through the water pump 4 is adjustable, the non-woven fabric sample in the clamping ring 7 is detected through the first temperature sensor 31, and the change of the filtering performance of impurities in the liquid is detected under the mixed liquid at different temperatures, so that the detection is more comprehensive.
Further, a second temperature control device is further disposed on the air supply pipe 11, the second temperature control device includes an electric heating wire 32 and a second temperature sensor 33, the electric heating wire 32 is disposed inside the air supply pipe 11 and is located at one end of the air supply pipe close to the fan 10, and the second temperature sensor 33 is disposed outside the air supply pipe 11.
In the present embodiment, the air sucked by the fan 10 is heated by the heating wire 32 so that the air blown out from the air blowing pipe 11 is hot air, and the nonwoven fabric sample in the detection hole 28 is detected by the second temperature sensor 33, and the change of the dust filtering performance in the air is detected by the hot air of different temperatures, thereby allowing the detection to be more comprehensive.
Referring to fig. 6, the present invention further provides a method for detecting filtration performance of a non-woven fabric using the above apparatus, comprising the following steps:
s1: placing the sampled non-woven fabric sample on the retaining ring 21, enabling the connecting shaft 22 to penetrate through the through hole, and screwing the screw cap 23, so that the non-woven fabric sample is clamped between the placing ring 20 and the retaining ring 21 in a pocket shape;
s2: starting the water pump 4, conveying the mixed liquid in the water tank 3 to a non-woven fabric sample between the placing ring 20 and the abutting ring 21 through the conveying pipe 5, and filtering the mixed liquid by using the non-woven fabric sample;
s3: comparing the mixed liquid in the water tank 3 with the mixed liquid in the collecting tank 8, thereby detecting the filterability of the sampled non-woven fabric to the liquid;
s4: placing the sampled nonwoven fabric sample in the rotating groove 27, and rotating the holding plate 26 so that the nonwoven fabric sample is sandwiched between the placing plate 25 and the holding plate 26;
s5: starting the fan 10, opening the dust hopper 9, so that the dirty gas mixed by air and dust is conveyed to the non-woven fabric sample on the clamping piece 12 through the air supply pipe 11, and performing air filtration on the dirty gas by using the non-woven fabric sample;
s6: the filtered nonwoven fabric sample was examined to detect the filterability of the extracted nonwoven fabric to the dirty gas.
Wherein, the worker places the sampled non-woven fabric sample on the supporting ring 21, and screws the screw cap 23 after the connecting shaft 22 penetrates through the through hole, so as to clamp the non-woven fabric sample between the placing ring 20 and the supporting ring 21 in a bag shape, starts the water pump 4, conveys the mixed liquid in the water tank 3 to the non-woven fabric sample between the placing ring 20 and the supporting ring 21 through the conveying pipe 5, filters the mixed liquid by using the non-woven fabric sample, compares the mixed liquid in the water tank 3 with the mixed liquid in the collecting tank 8, so as to detect the filterability of the sampled non-woven fabric to the liquid, simultaneously places the sampled non-woven fabric sample in the rotating groove 27, rotates the supporting plate 26, so that the non-woven fabric sample is clamped between the placing plate 25 and the supporting plate 26, and starts the fan 10, open send grey fill 9 for dirty gas after air and dust mix passes through blast pipe 11 carries extremely on the non-woven fabrics sample on the holder 12, utilize the non-woven fabrics sample to carry out empty the straining to dirty gas, examine the non-woven fabrics sample after filtering, detect out the filterability of the non-woven fabrics to dirty gas by the extraction, thereby more comprehensive detection non-woven fabrics's filtration performance.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A non-woven fabric filtering performance detection device is characterized in that,
comprises a support frame, a test bench, a first test device and a second test device, wherein the test bench is detachably connected with the support frame and is positioned above the support frame, the first test device and the second test device are arranged on the test bench, the first test device comprises a water tank, a water pump, a conveying pipe, a mounting frame, a clamping ring and a collecting box, the mounting frame is detachably connected with the test bench and is positioned above the test bench, the clamping ring is detachably connected with the mounting frame and is parallel to the test bench, the water tank is also arranged on the test bench, the water inlet end of the water pump is connected with a water tank pipeline, the conveying pipe is arranged at the water supply end of the water pump, one end of the conveying pipe, which is far away from the water pump, is detachably connected with the mounting frame and is positioned above the clamping ring, the inspection table is also provided with the collecting box, and the collecting box corresponds to the clamping ring;
the second verifying attachment includes ash feeding bucket, fan, blast pipe and holder, the holder with the connection can be dismantled to the mounting bracket, and is located the mounting bracket is kept away from the one end of grip ring, the fan with the connection can be dismantled to the checkout stand, the one end of blast pipe with the connection can be dismantled to the air supply end of fan, the other end of blast pipe with the connection can be dismantled to the mounting bracket, and is located the below of holder, be provided with on the air inlet end of fan ash feeding bucket.
2. The nonwoven fabric filtration performance test apparatus of claim 1,
the mounting bracket includes bottom plate, upstand, first mount and second mount, the bottom plate with checkout stand threaded connection, the upstand with bottom plate fixed connection, and be located the top of bottom plate, supreme setting gradually by down on the upstand first mount with the second mount, first mount with the connection can be dismantled to the conveyer pipe, and is located the conveyer pipe is close to the one end of grip ring, the second mounting with the connection can be dismantled to the blast pipe, and is located the blast pipe is close to the one end of holder.
3. The nonwoven fabric filtration performance test apparatus of claim 2,
the first fixing frame and the second fixing frame comprise cantilevers and fixing rings, each cantilever is fixedly connected with the vertical column and located on two sides of the vertical column respectively, and the fixing rings are fixedly connected with the cantilevers and located at one ends of the vertical columns.
4. The nonwoven fabric filtration performance test apparatus of claim 3,
the clamping ring comprises a first connecting arm, a placing ring, a supporting ring, a connecting shaft and a nut, one end of the first connecting arm is fixedly connected with the vertical column, the other end of the first connecting arm is fixedly connected with the placing ring, the placing ring is corresponding to the fixing ring on the first fixing frame, through holes are formed in two ends of the placing ring, two ends of the supporting ring are provided with the connecting shaft, the connecting shaft penetrates through the through holes, one end of the supporting ring, far away from the connecting shaft, is provided with threads, and the nut is matched with the threads.
5. The nonwoven fabric filtration performance test apparatus of claim 4,
the clamping piece comprises a second connecting arm, a placing plate and a supporting plate, one end of the second connecting arm is fixedly connected with the vertical column, the other end of the second connecting arm is fixedly connected with the placing plate, the placing plate corresponds to the fixing ring on the second fixing frame, a rotating groove is formed in the placing plate, a rotating shaft is arranged in the rotating groove, the supporting plate is movably connected with the rotating shaft, and detecting holes are formed in the placing plate and the supporting plate.
6. The nonwoven fabric filtration performance test apparatus of claim 1,
and limiting blocks are arranged at one end of the conveying pipe close to the clamping ring and one end of the blast pipe close to the clamping piece.
7. A method for detecting filtration performance of nonwoven fabric using the apparatus for detecting filtration performance of nonwoven fabric according to claim 5, comprising the steps of:
placing the sampled non-woven fabric sample on the abutting ring, enabling the connecting shaft to penetrate through the through hole, and screwing the screw cap, so that the non-woven fabric sample is clamped between the placing ring and the abutting ring in a pocket shape;
starting the water pump, conveying the mixed liquid in the water tank to a non-woven fabric sample between the placing ring and the abutting ring through the conveying pipe, and filtering the mixed liquid by using the non-woven fabric sample;
comparing the mixed liquid in the water tank with the mixed liquid in the collecting tank, thereby detecting the filterability of the sampled non-woven fabric to the liquid;
placing the sampled non-woven fabric sample in the rotating groove, and rotating the abutting plate to enable the non-woven fabric sample to be clamped between the placing plate and the abutting plate;
starting the fan, opening the dust feeding hopper, conveying the dirty gas mixed with air and dust to the non-woven fabric sample on the clamping piece through the air supply pipe, and performing air filtration on the dirty gas by using the non-woven fabric sample;
the filtered nonwoven fabric sample was examined to detect the filterability of the extracted nonwoven fabric to the dirty gas.
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| CN202011572052.8A CN112748054B (en) | 2020-12-27 | 2020-12-27 | Non-woven fabric filtering performance detection method and detection device |
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| CN202011572052.8A CN112748054B (en) | 2020-12-27 | 2020-12-27 | Non-woven fabric filtering performance detection method and detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183466A (en) * | 2023-04-27 | 2023-05-30 | 湖南盛联汽车配件有限公司 | Dust filtering detection equipment of engine filter |
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