CN114216830A - A high-efficient detection device for filter - Google Patents
A high-efficient detection device for filter Download PDFInfo
- Publication number
- CN114216830A CN114216830A CN202111535289.3A CN202111535289A CN114216830A CN 114216830 A CN114216830 A CN 114216830A CN 202111535289 A CN202111535289 A CN 202111535289A CN 114216830 A CN114216830 A CN 114216830A
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- slide
- filter
- workstation
- sliding
- clamping
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- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 239000000443 aerosol Substances 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims description 11
- 238000013507 mapping Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000013102 re-test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a high-efficiency detection device for a filter, which comprises a workbench, wherein support legs distributed at four corners of the workbench are hinged to the lower end surface of the workbench. The workstation up end is provided with can follow Y axle and makes a round trip gliding slide, be provided with at least one can follow X axle and make a round trip gliding slide bar on the slide, the tip of every slide bar all can be dismantled and be connected with can follow the flexible telescopic link of Z axle, the flexible high difference of the telescopic link that is located on the different slide bars, the upper end of telescopic link is provided with can follow its luffing motion's holding frame, the holding frame can the centre gripping be used for collecting gaseous scanning head, the scanning head passes through the pipeline and is connected with the host computer that is located outside aerosol photometer. The arm is replaced, the filter can enter the testing position more accurately, the testing angle and speed are convenient and controllable, and the testing precision and the testing efficiency of the filter are improved.
Description
Technical Field
The invention relates to the technical field of air detection, in particular to a high-efficiency detection device for a filter.
Background
In production and life, the filter is more and more widely used, and particularly, the filter is indispensable in places with high environmental requirements, such as biological safety cabinets, superclean benches and clean workshops. When the filter efficiency of the filter is detected, the aerosol photometer is often required to test the filter efficiency and the leakage condition of the filter. At present, an air inlet of a host of the aerosol photometer is connected with a handheld leak detector, and the handheld leak detector is close to a filter to scan the filter. The tip of hand-held type leak detector is provided with the scanning head that leaks hopper-shaped, is provided with the fan in aerosol photometer's host computer, and the fan can make hand-held type leak detector's scanning head department produce the negative pressure. When the air leakage detection is carried out on the filter, the scanning head faces the filter, scanning is carried out on the periphery of the filter, and the air sucked by the scanning head is analyzed through the aerosol host machine, so that whether the filter leaks air or not and the positioning point of the filter can be judged.
But current aerosol photometer is when using, and the scanning head of aerosol photometer is generally that the experimenter is handheld, and high efficiency filter often sets up at safety cabinet, superclean bench and clean factory building's high-end, and is very inconvenient during the detection. And the scanning head is easy to fatigue when being held by hands continuously, the measuring position and the measuring speed are not easy to control, the measuring error is large, and the requirement of precise measurement cannot be met.
Disclosure of Invention
In order to overcome the above disadvantages, an object of the present invention is to provide an efficient detection apparatus for a filter, which can effectively clamp a scan head, replace an arm, more accurately enter a test position of the filter, facilitate and control a test angle and a test speed, and improve test accuracy and test efficiency of the filter.
In order to achieve the above purposes, the invention adopts the technical scheme that: the utility model provides a high-efficient detection device for filter, includes the workstation, the terminal surface articulates under the workstation has the stabilizer blade of distribution in four angles departments of workstation, its characterized in that: workstation up end is provided with can follow Y axle and makes a round trip gliding slide, be provided with at least one can follow X axle and make a round trip gliding slide bar on the slide, every the tip of slide bar all can be dismantled and be connected with and can follow the flexible telescopic link of Z axle, be located the difference the flexible high difference of telescopic link on the slide bar, the upper end of telescopic link is provided with can follow its luffing motion's holding frame, the holding frame can the centre gripping be used for collecting gaseous scanner head, the scanner head passes through the pipeline and is connected with the host computer that is located outside aerosol photometer.
The invention has the beneficial effects that: the scanning head is clamped on the clamping frame, the angle can be adjusted, and a proper telescopic rod and a telescopic length can be selected according to actual needs, so that the scanning head is ensured to be positioned on the surface of the filter and not less than 25 mm. At the moment, the sliding seat and the sliding rod are pushed, the scanning head moves in a cross shape in an X axis and a Y axis, the scanning head moving back and forth when being held by a hand arm is simulated, and the testing efficiency is greatly improved.
Further, the worktable is provided with a sliding chute along the upper end surface of the worktable downwards, the sliding chute is used for sliding the sliding seat, the two ends of the sliding chute penetrate through the worktable, and the sliding seat can be embedded in the sliding chute. The sliding seat can slide in from the end part of the sliding groove and slide along the sliding groove, so that the workbench and the sliding seat can be assembled and disassembled conveniently. And the lower end surface of the sliding seat is provided with a plurality of balls capable of sliding along the bottom of the sliding groove, so that the sliding seat can slide conveniently.
Further, a first limiting groove for preventing the sliding seat from being separated from the sliding groove upwards is formed in the bottom of the sliding groove downwards, and the first limiting groove is arranged along the sliding direction of the sliding seat. The first limiting groove is a dovetail groove, two ends of the first limiting groove penetrate through the workbench, the sliding seat can conveniently slide into the workbench from the end portion, and a first limiting block matched with the cross section of the first limiting groove is arranged on the lower end face of the sliding seat.
Further, a through hole for the sliding rod to penetrate is formed in the sliding seat, the axis of the through hole is parallel to the X axis, a second limiting groove for limiting the sliding rod to rotate extends upwards from the through hole, and a second limiting block matched with the second limiting groove extends upwards from the sliding rod. The second limiting groove can be in a direction, a triangle or a polygon, and the sliding rod can be inserted from one end of the through hole.
Further, the telescopic rod comprises a plurality of supporting rods which are sleeved layer by layer from top to bottom, the supporting rods can slide up and down along the supporting rods which are positioned at the lower ends of the supporting rods and adjacent to the supporting rods, and the supporting rods are hollow round rods and are fixed with the adjacent supporting rods through locking pieces. The locking piece can be a bolt or an eccentric locking chuck, and the locking piece can fix the two support rods only by starting the locking function. The support rod at the lowest end of the position is in threaded connection with the slide rod, so that the slide rod is convenient to disassemble quickly, and after the slide rod slides into the through hole, the support rod is in threaded connection with the slide rod. The upper end of the supporting rod at the uppermost end is fixed with a swing seat for the clamping frame to swing.
Furthermore, the swing seat is an L-shaped seat fixed on the upper end face of the supporting rod, the clamping frame can swing along the swing seat and is fixed with the swing seat through bolts, and a clamping hole for inserting the scanning head is formed in the clamping frame. The clamping frame is abutted against a vertical plate of the L-shaped seat, after the clamping frame swings to a proper position, the swinging seat and the clamping seat are fixed through the bolt, the bolt penetrates through the swinging seat and the clamping seat, and the swinging seat and the clamping seat are clamped between the heads of the nut and the bolt through the nut fixing bolt.
Furthermore, the clamping hole is rectangular, a clamping plate which is horizontally arranged with the side wall of the clamping hole and can be close to or far away from the side wall is arranged in the clamping hole, a spring is arranged between the clamping plate and the side wall of the clamping hole, and the clamping plate clamps the scanning head in the clamping hole under the action of the spring.
Further, the terminal surface still is provided with the groove of stepping down that supplies the stabilizer blade embedding under the workstation, when the stabilizer blade embedding was stepped down the inslot, the lower terminal surface of stabilizer blade was higher than or equal to terminal surface under the workstation. When the workbench needs to be placed on the table top, the supporting legs can be turned over and stored in the abdicating groove; when the workbench needs to be fixed on the ground, the supporting feet are turned over and fixed on the ground. The lower ends of the supporting legs can be provided with universal rollers with brakes.
Further, the worktable is provided with a Y-axis scale for displaying the sliding distance of the sliding seat, the sliding rod is provided with an X-axis scale for displaying the sliding distance of the sliding rod, and the telescopic rod is provided with a Z-axis scale for displaying the height of the end part of the telescopic rod. Can take notes the position of scanning head this moment through X axle scale, Y axle scale and Z axle scale, when the testing result is unusual, send the well, stop the removal of scanning head this moment, note the position of scanning head this moment to the specific position of the unqualified department of calculation filter, later stage retest and later maintenance of being convenient for.
Further, a reflector is further arranged on the sliding table, the mapping surface of the reflector faces upwards, and the reflector can map the condition of the filter at the upper end of the reflector, so that an operator can conveniently observe at a low position and adjust the position of the scanning head.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention and a partial enlarged view thereof;
FIG. 3 is a cross-sectional view of a holder according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of an embodiment of the present invention;
fig. 5 is a side view of an embodiment of the present invention.
In the figure:
1. a work table; 11. a chute; 111. a first limit groove; 12. a yielding groove; 2. a support leg; 3. a slide base; 31. a ball bearing; 32. a first stopper; 4. a slide bar; 41. a second limiting block; 5. a telescopic rod; 51. a strut; 52. a locking member; 6. a clamping frame; 61. a clamping hole; 62. a clamping plate; 63. a spring; 7. a swing seat; 71. a bolt; 8. a mirror.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Examples
Referring to the attached fig. 1, 4 and 5, the high-efficiency detection device for the filter of the invention comprises a workbench 1, wherein the lower end surface of the workbench 1 is hinged with support legs 2 distributed at four corners of the workbench 1. The terminal surface still is provided with the groove of stepping down 12 that supplies stabilizer blade 2 to imbed under the workstation 1, and when stabilizer blade 2 imbeds the groove of stepping down 12 in, the lower terminal surface of stabilizer blade 2 is higher than or equal to terminal surface under the workstation 1. When the workbench 1 needs to be placed on a table top, the support legs 2 can be turned upwards and stored in the abdicating groove 12; when the workbench 1 needs to be fixed on the ground, the support legs 2 are turned downwards and fixed on the ground. The lower end of the supporting leg 2 can be provided with a universal roller with a brake, so that the workbench 1 can be conveniently pushed and placed at a proper working position.
Referring to fig. 1-2, a slide 3 capable of sliding back and forth along a Y axis is disposed on an upper end surface of a worktable 1, a Y axis scale for displaying a sliding distance of the slide 3 is disposed on the worktable 1, and a Y axis pointer pointing to the Y axis scale is disposed on the slide 3. At least one sliding rod 4 capable of sliding back and forth along an X axis is arranged on the sliding seat 3, an X axis scale for displaying the sliding distance of the sliding rod 4 is arranged on the sliding rod 4, and an X axis pointer pointing to the X axis scale is further arranged on the sliding seat 3.
The end part of each slide bar 4 can be detachably connected with a telescopic rod 5 which can stretch along the Z axis, and the other end of each slide bar is provided with a handle which is convenient for pulling the slide bar to move. The telescopic rod 5 is provided with a Z-axis scale for displaying the height of the end part. The telescopic rods 5 on different slide bars 4 have different telescopic heights, and can use filters with different heights to detect requirements, such as a roof, a biological cabinet top and the like. The upper end of telescopic link 5 is provided with can be along its luffing motion's holding frame 6, and holding frame 6 can the centre gripping be used for collecting gaseous scanner head, and the scanner head passes through the pipeline and is connected with the host computer that is located outside aerosol photometer.
Referring to fig. 1-2, the telescopic rod 5 includes a plurality of supporting rods 51 sleeved from top to bottom layer by layer, the supporting rods 51 can slide up and down along the supporting rods 51 located at the lower end and adjacent to the supporting rods 51, and the supporting rods 51 are hollow round rods and fixed to the adjacent supporting rods 51 through locking pieces 52. The locking member 52 may be a bolt 71 or an eccentric locking clamp, and the locking member only needs to start the locking action to fix the two support rods 51. The support rod 51 at the lowest end is in threaded connection with the slide rod 4, so that the slide rod 4 is convenient to disassemble quickly, and after the slide rod 4 slides into the through hole, the support rod 51 is in threaded connection with the slide rod 4. The upper end of the supporting rod 51 at the uppermost end is fixed with a swing seat 7 for swinging the clamping frame 6. The swing seat 7 is an L-shaped seat fixed on the upper end surface of the supporting rod 51, the clamping frame 6 can swing along the swing seat 7 and is fixed with the swing seat 7 through a bolt 71, and a clamping hole 61 for inserting the scanning head is formed in the clamping frame 6. The clamping frame 6 abuts against one vertical plate of the L-shaped seat, after swinging to a proper position, the swinging seat 7 and the clamping seat are fixed through the bolt 71, the bolt 71 penetrates through the swinging seat 7 and the clamping seat, the bolt 71 is fixed through the nut, and the swinging seat 7 and the clamping seat are clamped between the nut and the head of the bolt 71.
Referring to fig. 1, a reflector 8 is further arranged on the sliding table, the mapping surface of the reflector 8 faces upwards, and the reflector 8 can map the condition of the filter at the upper end of the reflector, so that an operator can conveniently observe at a low position and adjust the position of the scanning head.
During operation, the scanning head is clamped on the clamping frame 6, the angle can be adjusted, and the scanning head is ensured to be positioned on the surface of the filter at a position not less than 25mm by selecting the proper telescopic rod 5 and the telescopic length according to actual needs. At the moment, the filter above can be observed through the reflector 8, the sliding seat 3 and the sliding rod 4 are pushed, the cross-shaped movement of the scanning head in the X axis and the Y axis is realized, the movement of the scanning head held by the arm of a human hand to move back and forth is simulated, and the testing efficiency is greatly improved. When the testing result is unusual, send the well, stop the removal of scanning head this moment, can take notes the position of scanning head this moment through X axle scale, Y axle scale and Z axle scale to calculate the concrete position of the unqualified department of filter, the later stage retest and later maintenance of being convenient for.
The workstation 1 is seted up along its upper end face downwards and is supplied the gliding spout 11 of slide 3, and the workstation 1 is run through at spout 11 both ends, and slide 3 can inlay and establish in spout 11. The sliding base 3 can slide in from the end of the sliding groove 11 and slide along the sliding groove 11, which facilitates the assembly and disassembly of the workbench 1 and the sliding base 3. And the lower end surface of the sliding seat 3 is provided with a plurality of balls 31 which can slide along the bottom of the sliding groove 11, so that the sliding seat 3 can slide conveniently. The groove bottom of the sliding groove 11 is further provided with a first limiting groove 111 downwards for preventing the sliding seat 3 from being separated from the sliding groove 11 upwards, and the first limiting groove 111 is arranged along the sliding direction of the sliding seat 3. The first limiting groove 111 is a dovetail groove, two ends of the first limiting groove penetrate through the workbench 1, the sliding base 3 can conveniently slide into the workbench from the end portion, and a first limiting block 32 matched with the cross section of the first limiting groove 111 in shape is arranged on the lower end face of the sliding base 3.
A through hole for the sliding rod 4 to pass through is formed in the sliding seat 3, the axis of the through hole is parallel to the X axis, a second limiting groove for limiting the sliding rod 4 to rotate extends upwards from the through hole, and a second limiting block 41 matched with the second limiting groove extends upwards from the sliding rod 4. The second limit groove can be in a direction, a triangle or a polygon, and the slide rod 4 can be inserted from one end of the through hole.
Referring to fig. 3, the clamping hole is rectangular, a clamping plate 62 which is horizontally arranged with the side wall of the clamping hole and can be close to or far away from the side wall is arranged in the clamping hole, a spring 63 is arranged between the clamping plate and the side wall of the clamping hole 61, and the clamping plate 62 clamps the scanning head in the clamping hole 61 under the action of the spring 63.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a high-efficient detection device for filter, includes workstation (1), terminal surface articulates under workstation (1) has stabilizer blade (2) that distribute in four angles departments of workstation (1), its characterized in that: workstation (1) up end is provided with can follow Y axle and makes a round trip gliding slide (3), be provided with at least one on slide (3) and make a round trip gliding slide bar (4), every the tip of slide bar (4) all can be dismantled and be connected with and can follow telescopic link (5) of Z axle, be located the difference the flexible height difference of telescopic link (5) on slide bar (4), the upper end of telescopic link (5) is provided with can follow its luffing motion clamping frame (6), clamping frame (6) can the centre gripping be used for collecting gaseous scanning head, the scanning head passes through the pipeline and is connected with the host computer that is located outside aerosol photometer.
2. The high efficiency test apparatus for a filter of claim 1, wherein: workstation (1) is followed its upper end face and is seted up downwards and supply gliding spout (11) of slide (3), spout (11) both ends run through workstation (1), slide (3) can inlay and establish in spout (11), and the lower terminal surface of slide (3) is provided with a plurality of gliding balls (31) of spout (11) tank bottom of following.
3. The high efficiency test apparatus for a filter of claim 2, wherein: the utility model discloses a quick-witted, including spout (11), first spacing groove (111) that prevent slide (3) upwards break away from spout (11) are still seted up downwards to the tank bottom of spout (11), first spacing groove (111) set up along slide (3) slip direction, workstation (1) is run through for dovetail and both ends in first spacing groove (111), the terminal surface is provided with first stopper (32) that match with first spacing groove (111) cross sectional shape under slide (3).
4. The high efficiency test apparatus for a filter of claim 1, wherein: offer the through-hole that supplies slide bar (4) to pass on slide (3), the axis of through-hole is parallel with the X axle, the through-hole upwards extends and has the second spacing groove of restriction slide bar (4) pivoted, upwards extend on slide bar (4) have with second spacing groove matched's second stopper (41).
5. The high efficiency test apparatus for a filter of claim 1, wherein: telescopic link (5) include a plurality of branches (51) that the layer cover was established one by one to top-down, branch (51) can be followed and are located its lower extreme and rather than adjacent branch (51) and slide from top to bottom, branch (51) are hollow round bar and are fixed with adjacent branch (51) through locking piece (52), and the position is the lowest branch (51) and slide bar (4) threaded connection are located branch (51) upper end of the top and are fixed with and supply swing seat (7) of holding frame (6) wobbling.
6. The high efficiency test apparatus for a filter of claim 5, wherein: swing seat (7) are for fixing the L type seat on branch (51) up end, clamping frame (6) can be followed swing seat (7) and fixed with swing seat (7) through bolt (71), offer on clamping frame (6) and supply scanning head male centre gripping hole (61).
7. The high efficiency test apparatus for a filter of claim 6, wherein: the clamping hole is rectangular, a clamping plate (62) which is horizontally arranged with the side wall of the clamping hole and can be close to or far away from the side wall is arranged in the clamping hole, a spring (63) is arranged between the clamping plate and the side wall of the clamping hole (61), and the clamping plate (62) clamps the scanning head in the clamping hole (61) under the action of the spring (63).
8. The high efficiency test apparatus for a filter of claim 1, wherein: the terminal surface still is provided with the groove of stepping down (12) that supplies stabilizer blade (2) to imbed under workstation (1), when stabilizer blade (2) embedding was stepped down in groove (12), the lower terminal surface of stabilizer blade (2) is higher than or equal to terminal surface under workstation (1).
9. The high efficiency test apparatus for a filter of claim 1, wherein: the Y-axis scale for displaying the sliding distance of the sliding seat (3) is arranged on the workbench (1), the X-axis scale for displaying the sliding distance of the sliding seat (4) is arranged on the sliding rod (4), and the Z-axis scale for displaying the height of the end portion of the telescopic rod (5) is arranged on the telescopic rod.
10. The high efficiency test apparatus for a filter according to any one of claims 1 to 9, wherein: the sliding table is further provided with a reflective mirror (8), and the mapping surface of the reflective mirror (8) faces upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535289.3A CN114216830A (en) | 2021-12-15 | 2021-12-15 | A high-efficient detection device for filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535289.3A CN114216830A (en) | 2021-12-15 | 2021-12-15 | A high-efficient detection device for filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114216830A true CN114216830A (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111535289.3A Pending CN114216830A (en) | 2021-12-15 | 2021-12-15 | A high-efficient detection device for filter |
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| Country | Link |
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| CN (1) | CN114216830A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4494403A (en) * | 1982-07-14 | 1985-01-22 | Flanders Filters, Inc. | Filter testing apparatus and method |
| CN209215167U (en) * | 2018-12-10 | 2019-08-06 | 江苏海尔森检测技术服务有限公司 | A kind of probe clamping device of aerosol photometer |
| CN210221437U (en) * | 2019-09-23 | 2020-03-31 | 重庆市计量质量检测研究院 | Auxiliary detection device for biological safety cabinet filter |
| CN111912350A (en) * | 2020-07-04 | 2020-11-10 | 张飞 | Three-dimensional optical scanner |
| CN214224474U (en) * | 2021-03-19 | 2021-09-17 | 山东先声生物制药有限公司 | Automatic scanning equipment for high-efficiency filter |
-
2021
- 2021-12-15 CN CN202111535289.3A patent/CN114216830A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4494403A (en) * | 1982-07-14 | 1985-01-22 | Flanders Filters, Inc. | Filter testing apparatus and method |
| CN209215167U (en) * | 2018-12-10 | 2019-08-06 | 江苏海尔森检测技术服务有限公司 | A kind of probe clamping device of aerosol photometer |
| CN210221437U (en) * | 2019-09-23 | 2020-03-31 | 重庆市计量质量检测研究院 | Auxiliary detection device for biological safety cabinet filter |
| CN111912350A (en) * | 2020-07-04 | 2020-11-10 | 张飞 | Three-dimensional optical scanner |
| CN214224474U (en) * | 2021-03-19 | 2021-09-17 | 山东先声生物制药有限公司 | Automatic scanning equipment for high-efficiency filter |
Non-Patent Citations (1)
| Title |
|---|
| 曹国庆;许钟麟;张益昭;张彦国;冯昕;党宇;董林;: "洁净室高效空气过滤器现场检漏方法的实验研究――国标《洁净室施工及验收规范》编制组研讨系列课题之七", 暖通空调, no. 10, 31 October 2008 (2008-10-31), pages 4 - 8 * |
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