CN100582706C - Water drainage system penumatic pressure fluctuation test method and its device - Google Patents
Water drainage system penumatic pressure fluctuation test method and its device Download PDFInfo
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- CN100582706C CN100582706C CN200810223684A CN200810223684A CN100582706C CN 100582706 C CN100582706 C CN 100582706C CN 200810223684 A CN200810223684 A CN 200810223684A CN 200810223684 A CN200810223684 A CN 200810223684A CN 100582706 C CN100582706 C CN 100582706C
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- water
- water tank
- pressure fluctuation
- air pressure
- tube
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000010998 test method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000008400 supply water Substances 0.000 claims description 4
- 239000007767 bonding agent Substances 0.000 claims description 3
- 238000012279 drainage procedure Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000012956 testing procedure Methods 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 238000009429 electrical wiring Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009428 plumbing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
Disclosed are a drainage system air pressure fluctuation test method and a device thereof; the device is composed of a water tank, a water supply and drainage pipe system and a test instrument; the water tank is arranged at a position which is more than 5 meters high; the water supply and drainage pipe system is composed of a water tank outlet pipe, a valve, a horizontal drainage pipe, a tee joint, a reducing elbow, a 45-degree elbow, a ventilation pipe, a horizontal branch pipe, a vertical drainage pipe, a horizontal discharging pipe and a triangle plastic plate; and the test instrument comprises a pressure sensor and a computer. The test method comprises the following steps: supplying the water tank with water, recording the water level calibration number of a glass tube outside the water tank, starting up the computer, opening the valve at an angle of 60 degrees and discharging water for 20 seconds; the closing the valve, recording the water level decrease value of the water tank, and calculating the average flow during the water discharging period based on data; repeating the test for three times for each flow, removing the data with irregular pressure fluctuation from the beginning of water discharging to the five seconds before the end of the discharging; and then taking the average value so as to get the pressure extreme value in the operating condition. The test method and the device are easy to use and operate, and provide a technical platform for improving the drainage flow pattern, reducing the air pressure fluctuation inside the standpipes as well as improving the water passing capacity of the water drainage system.
Description
One, technical field:
The invention provides a kind of unwatering system air pressure fluctuation test method and device thereof, be applicable to the mensuration of unwatering system standpipe internal gas pressure fluctuation.Belong to the plumbing technical field.
Two, background technology
Architectural drainage system is very important to the realization of building function.Guarantee that draining is unobstructed, prevent damage of water block and safeguard that living environment quality should be as the cardinal rule of Water drainage system design.In a unwatering system, as long as a damage of water block is arranged, the balance of whole drainage system is just broken, and the gas in the drainage pipeline will overflow into indoor.The water seal depth of sanitary apparatus drain trap generally must not be less than 50mm, and drainage pipeline internal pressure undulating quantity must not surpass ± 40mm water column (H
2O) could guarantee that water seal is not destroyed.Exceed this value and might cause positive pressuring spraying base and negative pressure suction.Therefore need a kind of method of testing of unwatering system standpipe internal gas pressure fluctuation and the water passing capacity that device is estimated unwatering system thereof.
Three, summary of the invention
(1) purpose
The purpose of this invention is to provide a kind of unwatering system air pressure fluctuation test method and device thereof, it can impel the supply and drain water system water seal not to be destroyed, it provides technology platform for improving drainage joint, improve the draining fluidised form, reducing the air pressure fluctuation in the standpipe, the aspects such as water passing capacity of raising unwatering system.
(2) technical scheme
1. a kind of unwatering system air pressure fluctuation of the present invention proving installation, it comprises water tank, water supply and sewerage pipeline system and testing tool.This water tank places eminence more than 5 meters, and water tank is provided with one and the water tank bottom graduated glass tube of its subscript that communicates outward, utilizes law of connected vessels by the control of the valve opening degree on cistern water supply and the radiator drain with calculate drain discharge; This water supply and sewerage pipeline system comprises radiator drain, valve, reducing elbow, 45 ° of elbows, dewatering horizontal tube, threeway, horizontal arm, snorkel, soil stack, discharge transverse tube, and right-angle triangle plastic plate; This radiator drain is connected to water tank bottom, adorn a by-pass valve control on it, this radiator drain links to each other with dewatering horizontal tube by a reducing elbow, the dewatering horizontal tube gradient is 2%, another termination threeway of dewatering horizontal tube, the top of threeway is connected tracheae and is communicated with atmosphere, and the bottom of threeway links to each other with soil stack, soil stack middle part is by the plastics gas welding, connect 5 one ends for the horizontal arm of sealing as pressure tap; The right-angle triangle plastic plate is welded between soil stack and the horizontal arm by the plastics gas welding, makes it be an angle of 90 degrees; Make concave surface and be connected by the plastics gas welding with soil stack at horizontal branch pipe connection place, and its penetration depth is the wall thickness thickness of soil stack; The perforate that makes progress apart from about 5cm place, horizontal arm outer end be used to place one communicate with it, metal tube that opening makes progress, horizontal arm is connected with bonding agent with metal tube and then seals in order to avoid leak gas with the slit of glass cement to the junction; Metal tube is connected by the air intake opening of a silica gel hose and pressure transducer, for the air intake opening of avoid leaking gas metal tube and pressure transducer should be wrapped with raw material band in advance, and then with the tight metal tube of silica gel hose one headgear, the other end pressure transducer air intake opening that is locked; The soil stack bottom adopts 2 45 ° of elbows to be connected with the discharge transverse tube, and discharging the transverse tube gradient is 1.5%.Testing tool has: pressure transducer is connected by electrical wiring to data collecting card, and data collecting card links to each other with computer by USB interface, and recording oscillometer software is installed on the computer, and the pressure that can read pressure tap by the recording oscillometer software on the computer changes.
Wherein, water tank is of a size of length * wide * height=70 * 70 * 50cm;
Wherein, this diameter glass tube is 20mm;
Wherein, this snorkel is 0.5 meter long, external diameter 110mm;
Wherein, this horizontal length of tube is that 0.5m, external diameter are 50mm and each other at a distance of 0.5 meter;
Wherein, horizontal arm opening diameter is 10mm;
Wherein, this metal pipe range 10cm caliber is 10mm;
Wherein, the long 10cm caliber of this silica gel hose is 10mm;
Wherein, the external diameter of this discharge transverse tube is 110mm.
Testing tool has: pressure transducer is connected by electrical wiring to data collecting card, and data collecting card links to each other with computer by USB interface, and recording oscillometer software is installed on the computer, and the pressure that can read pressure tap by the recording oscillometer software on the computer changes.
2. unwatering system air pressure fluctuation test method
A kind of unwatering system air pressure fluctuation test method of the present invention, its step is as follows:
(1) opens valve several seconds that discharges water and check whether the drainage joint junction leaks;
(2) to cistern water supply and write down water tank outer glass pipe level scale number;
(3) the recording oscillometer software on the unlatching computer;
(4) open valve certain angle (60 ° or 90 °) discharge water a period of time (being generally 20s or 30s);
Valve-off is kept the cistern water level drop-out value in mind;
(5) treat current back recorded and stored data to the greatest extent,
By the average discharge that calculates in the discharge time t, wherein A is the water tank floorage, and H is the cistern water level falling head; Each flow revision test 3 times;
(6) after the data of pressure transducer are used the recording oscillometer software collection, preserve with the Excel form;
(7) drainage procedure has just been begun and has finished before approximately each erratic two segment data of pressure surge in 5 seconds remove, count after the positive and negative pressure extreme value of three tests on average again, promptly get the pressure extreme value of this unwatering system.
(3) advantage and effect
A kind of unwatering system air pressure fluctuation test method of the present invention and device thereof, its advantage and effect are: its easy, easy row, pressure surge situation in the soil stack under the different flow in the time of testing different tubing and splice combinations provides foundation for improving tubing and drainage joint.
Four, description of drawings
Fig. 1 unwatering system air pressure fluctuation proving installation
Symbol description among the figure:
The 1-water tank; The 2-radiator drain; The 3-valve; The 4-dewatering horizontal tube; The 5-threeway; The horizontal arm of 6-; 7-right-angle triangle plastic plate; The 8-soil stack; 9-discharges transverse tube; The 10-pressure transducer; The 11-reducing elbow; The 12-metal tube; The 13-silica gel hose; 14-45 ° of elbow; The 15-glass tube; The 16-snorkel.The PVC-U-rigid polyvinyl chloride; De75-external diameter 75mm; De110-external diameter 110mm; De50-external diameter 50mm.
Five, embodiment
See shown in Figure 1, a kind of unwatering system air pressure fluctuation of the present invention proving installation, it partly is made up of water tank, water supply and sewerage pipeline system and testing tool etc.(long * wide * high=70 * 70 * 50cm) are positioned over 1～2m place, soil stack 8 tops to this water tank 1, external one and its bottom communicates, diameter is the graduated glass tube 15 of its subscript of 20mm of water tank 1, utilize law of connected vessels to supply water by water tank 1 and radiator drain 2 on the opening degree of valve 3 control drain discharge.This water supply and sewerage pipeline system is made up of radiator drain 2, valve 3, dewatering horizontal tube 4, reducing elbow 11, threeway 5, horizontal arm 6, snorkel 16,8,45 ° of elbows 14 of soil stack, discharge transverse tube 9 and right-angle triangle plastic plate 7 etc.This radiator drain 2 (de75PVC-U pipe) is connected to water tank 1 bottom, adorn a by-pass valve control 3 on it, this radiator drain 2 links to each other with dewatering horizontal tube 4 (de110PVC-U pipe) by a reducing elbow 11, dewatering horizontal tube 4 gradients are 2%, dewatering horizontal tube 4 another termination threeways 5, the top of threeway 5 connects 0.5 meter long, the rigid polyvinyl chloride snorkel of external diameter 110mm and communicates with atmosphere, and the bottom of threeway 5 links to each other with soil stack 8 (length is the real wall smooth pipe of the de110PVC-U of 4m); Soil stack 8 middle parts are by the plastics gas welding, connect 5 length and be 0.5m each other at a distance of 0.5 meter, external diameter 50mm one end for the horizontal arm 6 (de50PVC-U pipe) of sealing as pressure tap, right-angle triangle plastic plate 7 is welded between soil stack 8 and the horizontal arm 6 by the plastics gas welding, makes it be an angle of 90 degrees; The hole of upwards opening diameter 10mm at the every about 5cm of horizontal arm 6 outer end blind ends place be used to place one communicate with it, opening upwards, the long 10cm caliber metal tube 12 that is 10mm; Horizontal arm 6 joints are made concave surface and are connected by the plastics gas welding with soil stack 8, and its penetration depth is the wall thickness thickness of soil stack 8; Horizontal arm 6 is connected the back and seals in order to avoid leak gas with the slit of glass cement to the junction with metal tube 12 usefulness bonding agents; Metal tube 12 is connected by the long 10cm caliber silica gel hose 13 that is 10mm and the air intake opening of pressure transducer 10, for avoiding gas leakage, the air intake opening of metal tube 12 and pressure transducer 10 should be wrapped with raw material band in advance, then with the tight metal tube 12 of silica gel hose 13 1 headgears, other end pressure transducer 10 air intake openings that are locked; It is that 110mmPVC-U discharge transverse tube 9 is connected that 2 45 ° of elbows 14 and external diameter are adopted in soil stack 8 bottoms, and discharging transverse tube 9 gradients is 1.5%.Testing tool has: pressure transducer is connected by electrical wiring to data collecting card, and data collecting card links to each other with computer by USB interface, and recording oscillometer software is installed on the computer.The pressure that can read pressure tap by the recording oscillometer software on the computer changes.
A kind of unwatering system air pressure fluctuation test method of the present invention, its step is as follows:
(1) opening valve 3 discharges water and checked whether the drainage joint junction leaks in 5 seconds.
(2) supply water and record water tank 1 outer glass pipe level scale number to water tank 1;
(3) the recording oscillometer software on the unlatching computer;
(4) open 60 ° of valve 3 certain angles, discharge time is 20 seconds; Valve-off 3 reads the cistern water level drop-out value;
(5) treat current back recorded and stored data to the greatest extent, by
Calculate the average discharge in the discharge time t.
Wherein A is the water tank floorage, and H is the cistern water level falling head; Each flow revision test 3 times
(6) data of pressure transducer are preserved with the Excel form after using the recording oscillometer software collection
(7) drainage procedure has just been begun and has finished before approximately each erratic two segment data of pressure surge in 5 seconds remove, count after the positive and negative pressure extreme value of three tests on average again, promptly get the pressure extreme value of this unwatering system.
Claims (10)
1. unwatering system air pressure fluctuation proving installation, it comprises water tank, water supply and sewerage pipeline system and testing tool, it is characterized in that: this water tank places eminence more than 5 meters, water tank is provided with one and the water tank bottom graduated glass tube of its subscript that communicates outward, by feed-tank supply water and radiator drain on valve opening degree control and calculate drain discharge; This water supply and sewerage pipeline system comprises radiator drain, valve, reducing elbow, 45 ° of elbows, dewatering horizontal tube, threeway, horizontal arm, snorkel, soil stack, discharge transverse tube, and right-angle triangle plastic plate; This radiator drain is connected to water tank bottom, adorn a by-pass valve control on it, this radiator drain links to each other with dewatering horizontal tube by a reducing elbow, the dewatering horizontal tube gradient is 2%, another termination threeway of dewatering horizontal tube, tracheae is connected on the top of threeway, and the bottom of threeway links to each other with soil stack, soil stack middle part is by the plastics gas welding, connect 5 one ends for the horizontal arm of sealing as pressure tap; The right-angle triangle plastic plate is welded between soil stack and the horizontal arm by the plastics gas welding, makes it be an angle of 90 degrees; Make concave surface and be connected by the plastics gas welding with soil stack at horizontal branch pipe connection place, and its penetration depth is the wall thickness thickness of soil stack; The perforate that makes progress apart from about 5cm place, horizontal arm outer end be used to place one communicate with it, metal tube that opening makes progress, horizontal arm is connected with bonding agent with metal tube; Metal tube is connected by the air intake opening of a silica gel hose and pressure transducer, and the soil stack bottom adopts 2 45 ° of elbows to be connected with the discharge transverse tube, and discharging the transverse tube gradient is 1.5%; Testing tool has: pressure transducer and computer.
2. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described water tank is of a size of length * wide * height=70 * 70 * 50cm.
3. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described diameter glass tube is 20mm.
4. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described snorkel length is that 0.5 meter, external diameter are 110mm.
5. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described horizontal length of tube is that 0.5m, external diameter are 50mm and each other at a distance of 0.5 meter.
6. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described horizontal arm opening diameter is 10mm.
7. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described metal tube length is 10cm, and caliber is 10mm.
8. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: described silica gel hose length is that 10cm, caliber are 10mm.
9. unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: the external diameter of described this discharge transverse tube is 110mm.
10. the method for testing of unwatering system air pressure fluctuation proving installation according to claim 1 is characterized in that: the testing procedure of this method of testing is as follows:
(1) opens valve
Discharge water and checked whether the drainage joint junction leaks in 5 seconds;
(2) to water tank
Supply water and the record water tank
Outer glass pipe level scale number;
(3) the recording oscillometer software on the unlatching computer;
(4) open valve
Certain angle 60-90 °, discharge time is 20-30 second; Valve-off 3 reads the cistern water level drop-out value;
(5) treat current back recorded and stored data to the greatest extent, by
Calculate the average discharge in the discharge time t; Wherein A is the water tank floorage, and H is the cistern water level falling head; Each flow revision test
Inferior;
(6) data of pressure transducer are preserved with the Excel form after using the recording oscillometer software collection;
(7) drainage procedure has just been begun and has finished before approximately each erratic two segment data of pressure surge in 5 seconds remove, count after the positive and negative pressure extreme value of three tests on average again, promptly get the pressure extreme value of this unwatering system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810223684A CN100582706C (en) | 2008-10-07 | 2008-10-07 | Water drainage system penumatic pressure fluctuation test method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810223684A CN100582706C (en) | 2008-10-07 | 2008-10-07 | Water drainage system penumatic pressure fluctuation test method and its device |
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| Publication Number | Publication Date |
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| CN101368864A CN101368864A (en) | 2009-02-18 |
| CN100582706C true CN100582706C (en) | 2010-01-20 |
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| CN200810223684A Expired - Fee Related CN100582706C (en) | 2008-10-07 | 2008-10-07 | Water drainage system penumatic pressure fluctuation test method and its device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975639B (en) * | 2010-07-28 | 2011-12-07 | 苏州顶裕节能设备有限公司 | Differential drainage device |
| CN104949791B (en) * | 2015-06-23 | 2017-06-27 | 江苏大学 | Method and device for measuring balanced gas pressure |
| CN106932189B (en) * | 2017-04-01 | 2023-04-18 | 山西泫氏实业集团有限公司 | Method and system for measuring dynamic water seal loss of water seal device |
| CN111851662B (en) * | 2020-06-10 | 2021-11-16 | 日丰新材有限公司 | Testing method of gas-water separation type drainage vertical pipe |
| CN111999048B (en) * | 2020-08-14 | 2022-06-03 | 临海伟星新型建材有限公司 | Pressure detection device and detection method for drainage vertical pipe |
| CN114636807B (en) * | 2022-05-20 | 2022-08-02 | 太原理工大学 | A physical simulation experiment system for gas migration in coal-rock system during mining |
| CN117153037A (en) * | 2023-03-06 | 2023-12-01 | 皖西学院 | Building drainage experiment system and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396107Y (en) * | 1999-12-02 | 2000-09-13 | 丘惠源 | Integrated automatic water supplying device for building construction, life and fire controlling |
| CN101144285A (en) * | 2007-10-25 | 2008-03-19 | 中国建筑设计研究院 | Drainage system simulation experiment device and testing method for residential buildings |
-
2008
- 2008-10-07 CN CN200810223684A patent/CN100582706C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396107Y (en) * | 1999-12-02 | 2000-09-13 | 丘惠源 | Integrated automatic water supplying device for building construction, life and fire controlling |
| CN101144285A (en) * | 2007-10-25 | 2008-03-19 | 中国建筑设计研究院 | Drainage system simulation experiment device and testing method for residential buildings |
Non-Patent Citations (3)
| Title |
|---|
| CN201255678Y(200820122785.X) 2009.06.10 |
| PVC-U排水立管内压力波动的测量方法比较. 徐丽等.北京建筑工程学院学报，第23卷第4期. 2007 |
| PVC-U排水立管内压力波动的测量方法比较. 徐丽等.北京建筑工程学院学报，第23卷第4期. 2007 * |
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