CN101368845A - Drainage pipeline noise detection chamber and its detection method - Google Patents
Drainage pipeline noise detection chamber and its detection method Download PDFInfo
- Publication number
- CN101368845A CN101368845A CNA2008102226100A CN200810222610A CN101368845A CN 101368845 A CN101368845 A CN 101368845A CN A2008102226100 A CNA2008102226100 A CN A2008102226100A CN 200810222610 A CN200810222610 A CN 200810222610A CN 101368845 A CN101368845 A CN 101368845A
- Authority
- CN
- China
- Prior art keywords
- chamber
- sound
- drainage pipeline
- noise detection
- noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Sink And Installation For Waste Water (AREA)
Abstract
A drainpipe noise detection chamber is composed of a chamber body, a catchment pool, a water supply and drainage system and a test equipment. The chamber body adopts a steel frame structure and has an upper layer and a lower layer; the floor, the wall structure body as well as the windows and doors are made of insulation materials; the catchment pool is arranged under the first layer; the water supply and drainage system is arranged in the chamber; during detection, a computer, a sound level meter and a transducer are arranged at each test point based on requirements so as to accurately detect the noise in the pipes and fittings. After the detection chamber is established, the background noise is lower than 25dB(A); the detection chamber can complete drainage noise test for 4 standpipes at the same time, and can achieve unmanned operation in the chamber during noise detection so as to avoid man-made disturbance in the noise test. The establishment of the detection chamber provides a test environment for the noise contrast of various pipe fittings; and the noise detection method is simple and practical, providing a platform for the development of low-noise tube drainage pipes.
Description
One, technical field:
The invention provides a kind of drainage pipeline noise detection chamber and detection method thereof, it is applicable to the mensuration of various gravity drainage system noises in the covil construction, as dirty waste water unwatering system, run by gravity drainage system against rain etc., belong to drainage pipeline noise measuring technical field.
Two, background technology
At present, existing Europe superscript is all adopted in the measurement of European various countries drainage pipeline noise, and test condition, apparatus and method that this standard proposes are: set up two adjacent testing laboratories to measure airborne sound and structure-borne sound transmission simultaneously.The hole reserve to be installed on ceiling and floor, and drainage pipeline is made up of the threeway in the threeway outside standpipe, the testing laboratory and the testing laboratory, and the opening of two threeways is all sealed up.Testing laboratory's plate outer side is 10～20cm apart from the distance of standpipe bottom.Installation testing object on the test wall requires to install firmly, to avoid structure-borne sound transmission.This method proving installation lab construction expense height: the bottom elbow is too near apart from the floor distance, and current can have influence on the noise testing result to the impact of elbow.
Tongji University's acoustic investigation once (draining noise of the spiral pipe of PVC-U) and common PVC-U drainpipe had been set up a cover unwatering system proving installation for the contrast rigid polyvinyl chloride.Unwatering system is installed in the wall place, building, the students' dormitory outside of a Floor 12, and leads at every layer a toilet seat is installed on the fire-fighting stairway platform, utilizes the toilet seat generation noise that discharges water.Microphone is from pipe outer wall 2cm, for the isolation environment noise of trying one's best, place the microphone upper and lower 500mm in place with the thick super glass wool pipe box of 50mm in the drainpipe outer wall, it mainly is the drainpipe current noise of test tube wall unofficial biography, its weak point be cleaners and polishes, pipe fitting, the standpipe in the residence toilet and go out family pipe current by the time, and be not inconsistent by the actual noise that produces after the airborne sound.
Three, summary of the invention
(1) purpose
In view of the present domestic sensing chamber that is specifically designed to the drainage pipeline noise that still do not have, the purpose of this invention is to provide a kind of drainage pipeline noise detection chamber and detection method thereof, it can simulate the environment for use of premises, noise to multiple pipe fitting and tubing carries out test comparison simultaneously, for exploitation low noise drainage pipe pipe fitting provides test platform.
(2) technical scheme
(1) a kind of drainage pipeline noise detection chamber of drainage pipeline noise detection chamber the present invention of the present invention, it is made up of chamber body, water collecting basin, supply and drain water system and testing apparatus four parts; This chamber body adopts steel-frame structure, be designed to upper and lower two-layer, this sensing chamber's design size is wide 2～3m, long 3.5～4.5m, floor height 2.2～3m, one deck floor is apart from ground 75～85cm, one deck establish the cement step in front of the door, brandreth stair are established in two layers of doors left side, floor and wall construction main body are sound panel; The exterior wall of sensing chamber is pasted sound insulating material from inside to outside respectively; The interior wall of sensing chamber and ceiling are pasted cotton pad, and canvass with the cord intersection and to make the cotton pad be rough and uneven in surface shape, avoid the reflection of wall to noise; Sensing chamber offers a Yishanmen and a fan window for every layer, and window adopts double glazing, and sound insulating material is all glued in order to sound insulation in all door and window outsides, the inboard cotton pad of pasting; The ground of sensing chamber's one deck and two layers all is equipped with one deck sound insulationg board, re-lays one deck lumber core on it, lays rubber floor mat topmost, is used for sound insulation and vibration damping; Place, four corners in each floor plate and roof all reserves an installation hole and fixes a drainpipe; It is underground that water collecting basin is built in one deck, and water pump places in the pond; Supply and drain water system is made up of feed pipe, valve, the horizontal arm of draining, soil stack, spinner-type flowmeter, the horizontal main of draining, dewatering horizontal tube, threeway, reducer tee, elbow etc., feed pipe links to each other with water pump in the water collecting basin, behind spinner-type flowmeter, insert sensing chamber's two floor branch four road and flow to four soil stacks, the horizontal arm of draining is connected with threeway with four soil stacks, four soil stacks are connected with two one eighth bends with the horizontal main of draining, the horizontal main of draining imports dewatering horizontal tube, and the dewatering horizontal tube water outlet enters the water collecting basin circulation; Testing apparatus has 2 type sound meters, computer, frequency converter etc.
Wherein, these four soil stacks are respectively cast carbon steel, rigid polyvinyl chloride (PVC-U) standard pipe of external diameter 110mm, the real wall spiral pipe of external diameter 110mmPVC-U and the external diameter 110mmPVC-U double-walled spiral pipe of nominal diameter 100mm;
Wherein, this sound panel employing is thick is acrylonitrile-styrene-acrylate plate (ASA) of 15～30cm
Wherein, this sound insulating material is polyurathamc plate and the thick 5～15cm of the being foamed cement plate of the thick 5～15cm of being;
Wherein, this cotton pad is thick is 5～10cm;
Wherein, this double glazing is thick is 1～2cm;
Wherein, this door and window outside sticking sound insulating material be the foamed polyurethane plate of 1～5cm;
Wherein, the sound insulationg board on this one deck and two layers of ground is the foam styrofoam of thick 5～15cm;
Wherein, the thick of this lumber core is 5～15cm;
Wherein, this rubber floor mat is thick is 1～5cm;
Wherein, the diameter in this installation hole is 150mm;
Wherein, this water collecting pool volume is 8～10 cubes;
Wherein, the external diameter of this dewatering horizontal tube is 150mm.
(2) detection method of a kind of drainage pipeline noise detection chamber of the present invention is as follows:
A. testing conditions requirement
The door and window of sensing chamber all should be closed when 1. detecting, and indoor ground unrest A sound level is not higher than 25 decibels (dB (A));
2. test the sound level of usefulness and count 2 type sound meters;
3. during noise measurement, use the A weighted;
4. measuring point is apart from wall 〉=1.0m;
5. point position is apart from floor level 1.2m.
6. indoor unmanned interference the when guarantee measuring, sound meter links to each other with computer outside the sensing chamber by prolonging cable vented fire family, by the recording oscillometer software reading of data on the computer.
B. detect step
1. sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod and highly locates, the sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, upper and lower 10 directions respectively, survey one deck sensing chamber ground unrest;
2. sound meter is fixed on the two layers of centre distance ground 1.2m of sensing chamber with tripod and highly locates, the sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, upper and lower 10 directions respectively, survey two layers of sensing chamber's ground unrest;
3. start water pump, open the inlet valve of measured tube, guarantee that the inlet valve of its excess-three root standpipe is closed;
3. sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber and highly locates, probe points to measured tube, the rotating speed of utilization Frequency Converter Control pump, read flow by spinner-type flowmeter, the draining noise of pipeline when testing water discharge respectively and being respectively 1 liter/second (L/s), 2L/s, 3L/s, 4L/s, 5L/s.
4. sound meter is fixed on the two layers of centre distance ground 1.2m of sensing chamber and highly locates, probe points to tested threeway, the rotating speed of utilization Frequency Converter Control pump, read flow by spinner-type flowmeter, when testing water discharge respectively and being respectively 1 liter/second (L/s), 2L/s, 3L/s, 4L/s, 5L/s, the draining noise of tested threeway.
(3) advantage and effect
A kind of drainage pipeline noise detection chamber of the present invention and detection method thereof, its advantage and effect are: this sensing chamber builds up the rear backdrop noise can be lower than 25dB (A), can finish the draining noise test of four standpipes simultaneously, can realize indoor unattendedly during walkaway, avoid the noise testing artificial interference.The noise contrast of being built into multiple pipe fitting tubing of this sensing chamber provides test environment, for exploitation low noise drainage pipe pipe fitting provides platform.
Four, description of drawings
Fig. 1. the drainage pipeline noise detection chamber three-dimensional plot
Fig. 2. drainage pipeline noise detection chamber body of wall selection diagrammatic cross-section
Fig. 3. drainage pipeline noise detection chamber one deck floor map
Fig. 4. drainage pipeline noise detection chamber two layer plane synoptic diagram
Fig. 5. piping system is arranged synoptic diagram in the noise detection chamber
Number in the figure and symbol description are as follows:
1-door; 2-window; 3-stair; 4-cement step; 5-foamed cement plate; 6-polyurathamc plate; 7-ASA sound panel; 8-cotton; 9-foam styrofoam; 10-lumber core; 11-rubber blanket; 12-feed pipe; 13-valve; The horizontal arm of 14-draining; 15-cast carbon steel; 16-PVC-U standard pipe; The real wall spiral pipe of 17-PVC-U; 18-PVC-U double-walled spiral pipe; 19-water collecting basin; 20-water pump; 21-spinner-type flowmeter; The horizontal main of 22-draining; 23-threeway; 24-elbow; 25-reducer tee; 26-dewatering horizontal tube.
PVC-U-hard polvinyl choride pipe; DN100-nominal diameter 100mm; De110-external diameter 110mm; DB (A)-A sound level decibel; L/s-liter/second; ASA-acrylonitrile-styrene-acrylate.
Five, embodiment
See shown in Figure 1, a kind of drainage pipeline noise detection chamber of the present invention, it is made up of chamber body, water collecting basin, supply and drain water system and testing apparatus four parts; The chamber body adopts steel-frame structure, is designed to upper and lower two-layerly, and one deck floor is apart from ground 75cm, every layer Nan Qiang opens the high 2m of a fan, the door 1 of wide 1m, one deck establish cement step 4 in front of the door, brandreth stair 3 are established in two layers of door left side, and every layer Dong Qiang opens the high 1m of a fan, the window 2 of wide 1m; Sensing chamber's each layer design size is wide 2.2m, long 4m, floor height 2.4m, in order to lower the neighbourhood noise in the sensing chamber, the floor of sensing chamber and wall are sound insulation sheet material, floor and wall construction main body are acrylonitrile-styrene-acrylate (ASA) sound panel 7 of thick 20cm, the exterior wall of sensing chamber is pasted thick polyurathamc plate 6 and the thick foamed cement plate 5 of one deck 10cm of one deck 10cm, each layer interior wall and ceiling are pasted the cotton pad 8 of thick 5cm, the several iron nails of place, interior wall corner nail, the iron nail diagonal angle connects with cord, cord intersects to canvass makes the cotton pad be rough and uneven in surface shape, avoid the reflection of wall to noise, thick foamed polyurethane plate 6 sound insulation of one deck 2cm are all pasted in all doors 1 and window 2 outsides, the inboard thick cotton pad 8 of 5cm of pasting, a bed thickness 10cm foam styrofoam 9 is all spread on each layer ground in addition, repave the lumber core 10 of a bed thickness 10cm on it, spreading thick 5cm rubber blanket 11 topmost is used for insulating against sound and vibration isolation, Fig. 2 is seen in the selection of drainage pipeline noise detection chamber body of wall, the hole that place, four corners in each floor plate of sensing chamber and roof all reserves a diameter 150mm fixes a drainpipe, drainage pipeline noise detection chamber one layer plane is seen Fig. 3, and two layer planes are seen Fig. 4;
It is underground that water collecting basin 19 is built in one deck, and volume is about 8 cubes, and water pump 20 places in the pond; Supply and drain water system by feed pipe 12, valve 13, the horizontal arm 14 of draining, cast carbon steel 15,, rigid polyvinyl chloride (PVC-U) standard pipe 16, the real wall spiral pipe 17 of PVC-U, PVC-U double-walled spiral pipe 18, spinner-type flowmeter 21, the horizontal main 22 of draining, threeway 23, elbow 24, reducer tee 25, dewatering horizontal tube 26 etc. form; Wherein, feed pipe 12 links to each other with water pump 20 in the water collecting basin 19, inserts four soil stacks of sensing chamber's two layers of branch, four road directions through spinner-type flowmeter 21 and supplies water.Cast carbon steel 15, rigid polyvinyl chloride (PVC-U) standard pipe 16 of external diameter 110mm, the external diameter that four soil stacks are respectively nominal diameter 100mm (DN100) is all real wall spiral pipe 17 of 110mmPVC-U and PVC-U double-walled spiral pipe 18,15,16,17,18 usefulness threeways 23 are connected the horizontal arm 14 of draining with four soil stacks, two one eighth bends 24 of four soil stacks 15,16,17,18 and horizontal main 22 usefulness of draining are connected, the horizontal main 22 of draining imports external diameter 150mm dewatering horizontal tube 26 through reducer tee 25, and dewatering horizontal tube 26 water outlets enter water collecting basin 19 circulations; Piping system is arranged and is seen Fig. 5 in the noise detection chamber; Testing apparatus has 2 type sound meters, computer, frequency converter etc.
The present invention's drainage pipeline noise detecting method, its step is as follows:
(1) sound meter is fixed on the tripod that camera uses, starts sound meter A weighting network, sound meter is linked to each other the recording oscillometer software on the startup computer by prolonging cable vented fire family with computer sensing chamber outside.
(2) sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod and highly locates, sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, upper and lower 10 directions respectively survey one deck sensing chamber ground unrest;
(3) sound meter is fixed on the two layers of centre distance ground 1.2m of sensing chamber with tripod and highly locates, the sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, two layers of sensing chamber's ground unrest of upper and lower 10 directions survey respectively;
(4) if ground unrest is not higher than 25dB in the sensing chamber, sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod highly locates, start water pump 20;
(5) open the inlet valve 13 of cast carbon steel 15, guarantee that the inlet valve 13 of its excess-three root standpipe is closed; The sound meter probe points to cast carbon steel 15, and the rotating speed of utilization Frequency Converter Control water pump 20 reads flow by spinner-type flowmeter 21, the draining noise of cast carbon steel 15 when test traffic is 1L/s, 2L/s, 3L/s, 4L/s, 5L/s respectively;
(6) open the inlet valve 13 of de110PVC-U standard pipe 16, the inlet valve 13 that guarantees its excess-three root standpipe is closed, sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod highly to be located, the sound meter probe points to de110PVC-U standard pipe 16, the rotating speed of utilization Frequency Converter Control water pump 20, read flow by spinner-type flowmeter 21, the draining noise of de110PVC-U standard pipe 16 when test traffic is 1L/s, 2L/s, 3L/s, 4L/s, 5L/s respectively;
(7) open the inlet valve 13 of the real wall spiral pipe 17 of de110PVC-U, the inlet valve 13 that guarantees its excess-three root standpipe is closed, sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod highly to be located, the sound meter probe points to the real wall spiral pipe 17 of de110PVC-U, the rotating speed of utilization Frequency Converter Control water pump 20, read flow by spinner-type flowmeter 21, the draining noise of the real wall spiral pipe 17 of de110PVC-U when test traffic is 1L/s, 2L/s, 3L/s, 4L/s, 5L/s respectively;
(8) open the inlet valve 13 of de110PVC-U double-walled spiral pipe 18, the inlet valve 13 that guarantees its excess-three root standpipe is closed, sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod highly to be located, the sound meter probe points to de110PVC-U double-walled spiral pipe 18, the rotating speed of utilization Frequency Converter Control water pump 20, read flow by spinner-type flowmeter 21, the draining noise of de110PVC-U double-walled spiral pipe 18 when test traffic is respectively 1L/s, 2L/s, 3L/s, 4L/s, 5L/s respectively;
(9) sound meter being fixed on the two layers of centre distance ground 1.2m of sensing chamber with tripod highly locates, the sound meter probe points to tested threeway 23,25, the rotating speed of utilization Frequency Converter Control water pump 20, read flow by spinner-type flowmeter 21, when test traffic is respectively 1L/s, 2L/s, 3L/s, 4L/s, 5L/s, the noise of tested threeway 23,25.
Claims (14)
1. drainage pipeline noise detection chamber, it is made up of chamber body, water collecting basin, supply and drain water system and testing apparatus four parts, it is characterized in that: this chamber body adopts steel-frame structure, be designed to upper and lower two-layerly, this sensing chamber's design size is wide 2～3m, long 3.5～4.5m, floor height 2.2～3m, and one deck floor is apart from ground 75～85cm, one deck establish the cement step in front of the door, brandreth stair are established in two layers of doors left side, floor and wall construction main body are sound panel; The exterior wall of sensing chamber is pasted sound insulating material from inside to outside respectively; The interior wall of sensing chamber and ceiling are pasted cotton pad, and canvass with the cord intersection and to make the cotton pad be rough and uneven in surface shape; Sensing chamber offers a Yishanmen and a fan window for every layer, and window adopts double glazing, and sound insulating material is all glued in order to sound insulation in all door and window outsides, the inboard cotton pad of pasting; The ground of sensing chamber's one deck and two layers all is equipped with one deck sound insulationg board, re-lays one deck lumber core on it, lays rubber floor mat topmost; Place, four corners in each floor plate and roof all reserves an installation hole and fixes a drainpipe; It is underground that water collecting basin is built in one deck, and water pump places in the pond; Supply and drain water system is made up of feed pipe, valve, the horizontal arm of draining, soil stack, spinner-type flowmeter, the horizontal main of draining, dewatering horizontal tube, threeway, reducer tee, elbow, feed pipe links to each other with water pump in the water collecting basin, insert sensing chamber's two floor branch four road through spinner-type flowmeter and flow to four soil stacks, the horizontal arm of draining is connected with threeway with four soil stacks, four soil stacks are connected with two one eighth bends with the horizontal main of draining, the horizontal main of draining imports dewatering horizontal tube, and the dewatering horizontal tube water outlet enters the water collecting basin circulation; Testing apparatus has 2 type sound meters, computer, frequency converter.
2. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: these four soil stacks are respectively the cast carbon steel of nominal diameter 100mm, the rigid polyvinyl chloride standard pipe of external diameter 110mm, the real wall spiral pipe of rigid polyvinyl chloride of external diameter 110mm and the dual-wall hard PVC spiral pipe of external diameter 110mm.
3. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: this sound panel adopts acrylonitrile-styrene-acrylate plate of the thick 15～30cm of being.
4. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the polyurathamc plate of the thick 5～15cm of being of this sound insulating material and the thick 5～15cm of being foamed cement plate.
5. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the thick 5～10cm of being of this cotton pad.
6. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the thick 1～2cm of being of this double glazing.
7. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: this door and window outside sticking sound insulating material be the foamed polyurethane plate of 1～5cm.
8. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the sound insulationg board of this one deck and two layers of ground laying is the foam styrofoam of thick 5～15cm.
9. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the thick 5～15cm of being of this lumber core.
10. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the thick 1～5cm of being of this rubber floor mat.
11. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the diameter in this installation hole is 150mm.
12. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: this water collecting pool volume is 8～10 cubes.
13. according to claims 1 described a kind of drainage pipeline noise detection chamber, it is characterized in that: the external diameter of this dewatering horizontal tube is 150mm.
14. the noise detecting method of a drainage pipeline noise detection chamber is characterized in that: the door and window of sensing chamber all should be closed during detection, and indoor ground unrest A sound level is not higher than 25 decibels; The sound level of test usefulness is counted 2 type sound meters; During noise measurement, use the A weighted; Measuring point is apart from wall 〉=1.0m; Point position is apart from floor level 1.2m; Indoor unmanned interference the when guarantee measuring, sound meter is by prolonging the cable vented fire family also reading that links to each other with computer sensing chamber outside; Sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber with tripod highly locates, sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, upper and lower 10 directions respectively survey one deck sensing chamber ground unrest; Sound meter is fixed on the two layers of centre distance ground 1.2m of sensing chamber with tripod highly locates, the sound meter probe is pointed to East, West, South, North, the southeast, southwest, northeast, northwest, two layers of sensing chamber's ground unrest of upper and lower 10 directions survey respectively; Start water pump, open the inlet valve of measured tube, guarantee that the inlet valve of its excess-three root standpipe is closed; Sound meter is fixed on one deck centre distance ground 1.2m of sensing chamber and highly locates, probe points to measured tube, the rotating speed of utilization Frequency Converter Control pump, read flow by spinner-type flowmeter, the draining noise of pipeline when testing water discharge respectively and being respectively 1 liter/second, 2 liters/second, 3 liters/second, 4 liters/second, 5 liters/second; Sound meter is fixed on the two layers of centre distance ground 1.2m of sensing chamber and highly locates, probe points to tested threeway, the rotating speed of utilization Frequency Converter Control pump, read flow by spinner-type flowmeter, when testing water discharge respectively and being respectively 1 liter/second, 2 liters/second, 3 liters/second, 4 liters/second, 5 liters/second, the draining noise of tested threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102226100A CN101368845A (en) | 2008-09-18 | 2008-09-18 | Drainage pipeline noise detection chamber and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102226100A CN101368845A (en) | 2008-09-18 | 2008-09-18 | Drainage pipeline noise detection chamber and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101368845A true CN101368845A (en) | 2009-02-18 |
Family
ID=40412767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102226100A Pending CN101368845A (en) | 2008-09-18 | 2008-09-18 | Drainage pipeline noise detection chamber and its detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101368845A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042869A (en) * | 2009-10-23 | 2011-05-04 | 中国建筑材料检验认证中心 | Building drainage noise measurement system and measurement method |
| CN105973984A (en) * | 2016-06-08 | 2016-09-28 | 镇江市建科工程质量检测中心有限公司 | Sound insulation detection system |
| CN109238452A (en) * | 2018-11-02 | 2019-01-18 | 四川升拓检测技术股份有限公司 | A kind of single-sensor sound pick up equipment based on impact echo audio frequency detection |
| CN109632082A (en) * | 2018-12-15 | 2019-04-16 | 浙江禾城工程管理有限公司 | A kind of construction drainage noise measurement system and measurement method |
| CN110160637A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | Acoustic power level cylindrical measurement face method detects the method that ceramic pedestal pan rinses noise |
| CN110160638A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | The method that A weighted acoustic energy grade mensuration detects tank for excrement pan water inlet noise |
| CN110160631A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | A weighted acoustic power level mensuration detects sanitary ware to the method for/draining noise |
| CN110243453A (en) * | 2018-05-18 | 2019-09-17 | 李文杰 | The method that A weighted acoustic power level mensuration detects tank for excrement pan water inlet noise |
| CN110823552A (en) * | 2019-12-17 | 2020-02-21 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
-
2008
- 2008-09-18 CN CNA2008102226100A patent/CN101368845A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042869A (en) * | 2009-10-23 | 2011-05-04 | 中国建筑材料检验认证中心 | Building drainage noise measurement system and measurement method |
| CN102042869B (en) * | 2009-10-23 | 2015-07-15 | 中国建材检验认证集团股份有限公司 | Building drainage noise measurement system and measurement method |
| CN105973984A (en) * | 2016-06-08 | 2016-09-28 | 镇江市建科工程质量检测中心有限公司 | Sound insulation detection system |
| CN105973984B (en) * | 2016-06-08 | 2018-07-13 | 镇江市建科工程质量检测中心有限公司 | Sound insulation for building performance detecting system |
| CN110160631B (en) * | 2018-05-18 | 2021-04-27 | 李文杰 | Method for detecting sanitary ware water supply/drainage noise by A weighting sound power level measurement method |
| CN110160637A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | Acoustic power level cylindrical measurement face method detects the method that ceramic pedestal pan rinses noise |
| CN110160638A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | The method that A weighted acoustic energy grade mensuration detects tank for excrement pan water inlet noise |
| CN110160631A (en) * | 2018-05-18 | 2019-08-23 | 李文杰 | A weighted acoustic power level mensuration detects sanitary ware to the method for/draining noise |
| CN110243453A (en) * | 2018-05-18 | 2019-09-17 | 李文杰 | The method that A weighted acoustic power level mensuration detects tank for excrement pan water inlet noise |
| CN110243453B (en) * | 2018-05-18 | 2021-05-07 | 李文杰 | Method for detecting water inlet noise of toilet water tank by A weighting sound power level measurement method |
| CN110160637B (en) * | 2018-05-18 | 2021-07-20 | 李文杰 | Method for detecting flushing noise of ceramic toilet by sound power level cylinder measuring surface method |
| CN109238452B (en) * | 2018-11-02 | 2020-09-15 | 四川升拓检测技术股份有限公司 | Single-sensor pickup device based on impact echo acoustic frequency detection |
| CN109238452A (en) * | 2018-11-02 | 2019-01-18 | 四川升拓检测技术股份有限公司 | A kind of single-sensor sound pick up equipment based on impact echo audio frequency detection |
| CN109632082A (en) * | 2018-12-15 | 2019-04-16 | 浙江禾城工程管理有限公司 | A kind of construction drainage noise measurement system and measurement method |
| CN110823552A (en) * | 2019-12-17 | 2020-02-21 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
| CN110823552B (en) * | 2019-12-17 | 2022-04-22 | 万向钱潮（上海）汽车系统有限公司 | Electronic parking caliper noise measurement device and measurement method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101368845A (en) | Drainage pipeline noise detection chamber and its detection method | |
| Tanyer et al. | Assessing the airtightness performance of container houses in relation to its effect on energy efficiency | |
| US8671763B2 (en) | Sub-surface windscreen for outdoor measurement of infrasound | |
| CN104132727A (en) | Drainpipe noise test system and test method for high-rise/ultra-high-rise building | |
| CN104315879A (en) | Noise control method for cooling tower | |
| CN201285322Y (en) | Noise detection chamber for discharge duct | |
| CN109138212A (en) | A kind of villa noise reduction system | |
| CN102042869B (en) | Building drainage noise measurement system and measurement method | |
| Berendt | A Guide to Airborne, Impact, and Structureborne Noise Control in Multifamily Dwellings | |
| CN204115859U (en) | A kind of high-rise/super high-rise building drainage pipeline noise testing platform | |
| CN208432387U (en) | A kind of air quantity shield air quantity calibrating installation | |
| CN102758488A (en) | Construction method of indoor sound insulation system of full-decoration housing | |
| CN201908338U (en) | Descending floor-type drainage on the same layered floor and drainage collector system | |
| CN109781263A (en) | A kind of kitchen and toilet waterproof construction quality testing identification method | |
| CN101349066A (en) | Roofing rainwater non-energy consumption utilizing apparatus | |
| CN103114692A (en) | Construction method of fully furnished house sound-proof system | |
| CN106013566A (en) | Assembled type bathroom floor slab and construction method | |
| JP6927759B2 (en) | Stormwater drainage device | |
| CN109632082A (en) | A kind of construction drainage noise measurement system and measurement method | |
| CN219753839U (en) | Sound insulation drainage system | |
| KR200428618Y1 (en) | The box for soundproof and waterproof | |
| CN215858299U (en) | Waterproof construction of building engineering | |
| CN216839789U (en) | Waterproof drainage structures is synthesized on indoor environment ground that soaks | |
| CN218843296U (en) | Double-layer drainage floor drain device suitable for building water equipment room with floating shock insulation layer | |
| CN215484378U (en) | Dampproofing ponding water discharge system of preventing in bathroom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090218 |