CN203940945U - A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue - Google Patents
A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue Download PDFInfo
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- CN203940945U CN203940945U CN201420336200.XU CN201420336200U CN203940945U CN 203940945 U CN203940945 U CN 203940945U CN 201420336200 U CN201420336200 U CN 201420336200U CN 203940945 U CN203940945 U CN 203940945U
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- gas flue
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- 239000007789 gas Substances 0.000 title claims abstract description 52
- 230000003068 static effect Effects 0.000 title claims abstract description 42
- 238000010411 cooking Methods 0.000 title claims abstract description 29
- 239000003517 fume Substances 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 8
- 238000002474 experimental method Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue, comprises multiple air-flow fairleads, air-flow convergence tube, multiple connecting pipe and a wind pressure measuring meter; Described air-flow fairlead, has two and can make to draw the air-flow escape hole that the equal pressure of air-flow goes out, for being arranged on the air-flow outlet on the uniform tube wall that is opened in exhausting-pipe for cooking fume exhauster and the same pressure measurement of exhaust gas flue cross section; Described air-flow convergence tube, there is two relative air flow inlets and an air stream outlet, two adjacent air stream outlets of described air-flow fairlead join between two by connecting pipe, and wherein a pair of adjacent air stream outlet joins by described connecting pipe with two described air flow inlets of described air-flow convergence tube respectively; Described wind pressure measuring meter is arranged at the air flow outlet of described air-flow convergence tube.The utility model has not only improved measuring accuracy, has saved the workload of multiposition measuring.
Description
Technical field
The utility model belongs to exhausting-pipe for cooking fume exhauster and the average static pressure test technical field of exhaust gas flue, is specifically related to the average static pressure testing device of a kind of exhausting-pipe for cooking fume exhauster and exhaust gas flue.
Background technology
Because exhausting-pipe for cooking fume exhauster and exhaust gas flue are all to have larger sectional dimension, so at the diverse location in same cross section, static pressure is different, needs in theory cross section to be divided into multiple parts, calculate average static pressure after surveying the static pressure of multiple parts.The technical scheme of related experiment generally adopts Pitot tube deeply to manage the static pressure at interior measurement diverse location place at present, and the static pressure COMPREHENSIVE CALCULATING of diverse location is tried to achieve to average static pressure.Although the method that measurement cross section is divided into many parts survey static pressure and average is more accurate in theory, but be only applicable to the measurement of single or a small amount of exhaust duct, and expend a large amount of time, be not suitable for the test experiments of multilayer or high-rise kitchen exhaust exhaust system, for the test experiments of whole multilayer or high-rise kitchen exhaust exhaust system, owing to measuring, cross section is numerous, carry out test experiments by above-mentioned measuring method, accomplish that each cross section will survey the static pressure of diverse location, not only workload is too large, and is difficult to realize.
Because the number of plies of multilayer as above or high-rise kitchen exhaust exhaust system is more, measure section also a lot, so can not, in each experiment, carry out the static pressure measurement of diverse location and calculate average static pressure at each measurement section, this cannot realize in practical operation.Therefore, for solving above-mentioned technical matters, ensure under the prerequisite of certain measuring accuracy, make a kind of average static pressure testing device that is applicable to exhausting-pipe for cooking fume exhauster and exhaust gas flue in multilayer or high-rise kitchen exhaust exhaust system performance test experiment, necessary.
Utility model content
The purpose of this utility model is to solve above-mentioned technical matters and a kind of exhausting-pipe for cooking fume exhauster and average static pressure testing device of exhaust gas flue that is applicable to measure in the vertical experiment of exhaust gas flue the average static pressure test in certain cross section of exhausting-pipe for cooking fume exhauster and exhaust gas flue is provided.
For achieving the above object, the utility model adopts following technical scheme:
A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue, comprise multiple air-flow fairleads, air-flow convergence tube, multiple connecting pipe and a wind pressure measuring meter; Described air-flow fairlead, has two and can make to draw the air-flow escape hole that the equal pressure of air-flow goes out, for being arranged on the air-flow outlet on the uniform tube wall that is opened in exhausting-pipe for cooking fume exhauster and the same pressure measurement of exhaust gas flue cross section.
Described air-flow convergence tube, there is two relative air flow inlets and an air stream outlet, two adjacent air stream outlets of described air-flow fairlead join between two by connecting pipe, and wherein a pair of adjacent air stream outlet joins by described connecting pipe with two described air flow inlets of described air-flow convergence tube respectively.
Described wind pressure measuring meter is arranged at the air flow outlet of described air-flow convergence tube.
Described air-flow fairlead can be four, is arranged symmetrically with two in horizontal direction, is arranged symmetrically with two in vertical direction.
Described air-flow fairlead and described exhausting-pipe for cooking fume exhauster and exhaust gas flue can be and removably connect.
Described air-flow fairlead can be thread seal with described exhausting-pipe for cooking fume exhauster and exhaust gas flue and is connected.
Described air-flow fairlead and described air-flow convergence tube can be T tube.
The utility model is by converging the air pressure in multiple directions, import in air-flow convergence tube, thereby reach one and all press effect, thereby the pressure of combined gas streams can be measured to the average static pressure in cross section as this, not only improve measuring accuracy, the workload of having saved multiposition measuring, has greatly reduced workload.Compare with loaded down with trivial details multiposition measuring and single position measurement, the utility model device is more suitable for the test experiments of multilayer or high-rise kitchen exhaust exhaust system, for measuring the average static pressure problem in pressure measurement cross section of exhaust duct and exhaust gas flue.
Brief description of the drawings
Figure 1 shows that the schematic diagram of a kind of average static pressure test method of exhausting-pipe for cooking fume exhauster that the utility model embodiment provides;
Figure 2 shows that a kind of average static pressure test method of exhaust gas flue schematic diagram that the utility model embodiment provides.
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but the utility model is not limited to listed embodiment.
Specifically consult shown in Fig. 1-2, the average static pressure testing device of this exhausting-pipe for cooking fume exhauster and exhaust gas flue comprises multiple air-flow fairleads, air-flow convergence tube, multiple connecting pipe and a wind pressure measuring meter; Described air-flow fairlead, has two and can make to draw the air-flow escape hole that the equal pressure of air-flow goes out, for being arranged on the air-flow outlet on the uniform tube wall that is opened in exhausting-pipe for cooking fume exhauster 1 or the same pressure measurement of exhaust gas flue 200 cross section.
Described air-flow convergence tube, there is two relative air flow inlets and an air stream outlet, two adjacent air stream outlets of described air-flow fairlead join between two by connecting pipe, and wherein a pair of adjacent air stream outlet joins by described connecting pipe with two described air flow inlets of described air-flow convergence tube respectively.
Described wind pressure measuring meter is connected in the air flow outlet of described air-flow convergence tube by a connecting pipe.
Preferred as one, described air-flow fairlead is four, is arranged symmetrically with two in horizontal direction, is arranged symmetrically with two on vertical or vertical direction.
Further, described air-flow fairlead and described exhausting-pipe for cooking fume exhauster and exhaust gas flue are for removably connecting.Like this, conveniently before test, install, after testing, take off.
Preferably, described air-flow fairlead is that thread seal is connected with described exhausting-pipe for cooking fume exhauster and exhaust gas flue.Like this, more convenient being installed on taken off, and also makes the sealing effectiveness of air-flow outlet good, to ensure that test accurately.
Described air-flow outlet can be connected with described air-flow fairlead by one section of pipe with external thread or internal thread, as the hole that can get out on tube wall, from the hole that this gets out, stretch out described one section of pipe with external thread or internal thread, then by described air-flow fairlead (thering is internal thread or external thread) and described external thread or rifled tube seal with screwed joint, described connection can adopt rubber hose, described four air-flow fairleads are connected into after a circle, be connected with described air-flow convergence tube, finally be connected to blast proving installation by a rubber linking tube again---as measured on blast gauge.
As the technical improvement of one, described air-flow fairlead and described air-flow convergence tube can adopt (T-shaped) three-way pipe of standard.
, as example the utility model is described taking average static pressure test in exhausting-pipe for cooking fume exhauster below.
Refer to Fig. 1, be in the level and vertical four direction of tube wall in the same pressure measurement cross section of circular exhausting-pipe for cooking fume exhauster 1 in one section of stainless steel cross section, hole separately and stretch out a bit of threaded stainless steel tubule, make and the exhaust duct air-flow fairlead one 2 of tubule with caliber, exhaust duct air-flow fairlead 23, exhaust duct air-flow fairlead 34, exhaust duct air-flow fairlead 45, and there is an air flow inlet 21, two air stream outlets: air stream outlet 1, air stream outlet 2 23, then by exhaust duct connecting pipe 1, exhaust duct connecting pipe 27, exhaust duct connecting pipe three 8(are as adopted rubber hose) four exhaust duct air-flow fairleads are connected into a circle, and again by exhaust duct connecting pipe 49, two air-flows that exhaust duct connecting pipe 5 10 is connected into exhaust duct air-flow convergence tube 11 import mouth, connect again the air-flow escape hole of exhaust duct air-flow convergence tube 11 by exhaust duct connecting pipe 6 12, finally be connected on exhaust duct blast gauge 13.So, in exhaust duct, the air-flow of four direction can first converge 6 12 li of exhaust duct connecting pipes by boring and threeway, form average static pressure, act on the probe of exhaust duct blast gauge 13 in the exit that is connected in exhaust duct connecting pipe 6 12, record the pressure of this strand of mixed pressure by exhaust duct blast gauge, measure the average static pressure in cross section as exhaust duct.
, as example the utility model is described taking average static pressure test in exhaust gas flue below.
Refer to shown in Fig. 2, on the four direction in the same measurement cross section of the exhaust gas flue 200 that is rectangle in cross section, punching the threaded metal aperture of mounting strap respectively, conveniently with exhaust gas flue air-flow fairlead 1, exhaust gas flue air-flow fairlead 2 202, exhaust gas flue air-flow fairlead 3 203, exhaust gas flue air-flow fairlead 4 204 is threaded, connect after exhaust gas flue air-flow fairlead, by exhaust gas flue connecting pipe 1, exhaust gas flue connecting pipe 2 211, four exhaust gas flue connecting pipes are linked to be a circle by exhaust gas flue connecting pipe 3 212, again by two exhaust gas flue connecting pipes: exhaust gas flue connecting pipe 4 213, exhaust gas flue connecting pipe 5 214 is connected into the exhaust gas flue air-flow convergence tube 205 of another threeway form, be connected with exhaust gas flue blast gauge 206 by exhaust gas flue connecting pipe 6 215 again.Its effect also can make the air pressure of exhaust gas flue four direction merge together, and forms an air pressure, measures the pressure of this mixed air pressure by exhaust gas flue blast gauge, is defined as the average static pressure of exhaust gas flue 200 in this measurement cross section.
Due to the blast difference of the diverse location of exhaust duct or exhaust gas flue, if adopting general measure method is cross section need to be divided into many parts, after measuring manifold static pressure, be averaging static pressure, thereby cannot determine some fixing measuring positions, more loaded down with trivial details in the time carrying out lot of experiments.The utility model can record at definite fixed position place the average static pressure in the pressure measurement cross section of exhaust duct or exhaust gas flue, has saved at every turn and has all needed the static pressure of the diverse location on manual measurement xsect to average.
The utility model is specially adapted to the test experiments of multilayer or high-rise kitchen exhaust exhaust system, both saved the extensive work of measuring the static pressure of diverse location and calculating average static pressure, can reach again the effect of the four direction static pressure of average vertical, the low problem of measuring accuracy of having avoided only measuring a position static pressure and produce, can carry out not only multilayer or high-rise kitchen exhaust exhaust system test experiments soon but also accurately.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the average static pressure testing device of exhausting-pipe for cooking fume exhauster and exhaust gas flue, is characterized in that, comprises multiple air-flow fairleads, air-flow convergence tube, multiple connecting pipe and a wind pressure measuring meter; Described air-flow fairlead, has two and can make to draw the air-flow escape hole that the equal pressure of air-flow goes out, for being arranged on the air-flow outlet on the uniform tube wall that is opened in exhausting-pipe for cooking fume exhauster and the same pressure measurement of exhaust gas flue cross section;
Described air-flow convergence tube, there is two relative air flow inlets and an air stream outlet, two adjacent air stream outlets of described air-flow fairlead join between two by connecting pipe, and wherein a pair of adjacent air stream outlet joins by described connecting pipe with two described air flow inlets of described air-flow convergence tube respectively;
Described wind pressure measuring meter is arranged at the air flow outlet of described air-flow convergence tube.
2. the average static pressure testing device of exhausting-pipe for cooking fume exhauster and exhaust gas flue as claimed in claim 1, is characterized in that, described air-flow fairlead is four, is arranged symmetrically with two in horizontal direction, is arranged symmetrically with two in vertical direction.
3. the average static pressure testing device of exhausting-pipe for cooking fume exhauster and exhaust gas flue as claimed in claim 1, is characterized in that, described air-flow fairlead and described exhausting-pipe for cooking fume exhauster and exhaust gas flue are for removably connecting.
4. the average static pressure testing device of exhausting-pipe for cooking fume exhauster and exhaust gas flue as claimed in claim 3, is characterized in that, described air-flow fairlead is that thread seal is connected with described exhausting-pipe for cooking fume exhauster and exhaust gas flue.
5. the average static pressure testing device of exhausting-pipe for cooking fume exhauster and exhaust gas flue as claimed in claim 1, is characterized in that, described air-flow fairlead and described air-flow convergence tube are T tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336200.XU CN203940945U (en) | 2014-06-23 | 2014-06-23 | A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336200.XU CN203940945U (en) | 2014-06-23 | 2014-06-23 | A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940945U true CN203940945U (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336200.XU Expired - Lifetime CN203940945U (en) | 2014-06-23 | 2014-06-23 | A kind of exhausting-pipe for cooking fume exhauster and the average static pressure testing device of exhaust gas flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203940945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424263A (en) * | 2015-12-31 | 2016-03-23 | 美的集团武汉制冷设备有限公司 | Method and device for detecting installation specification of air conditioner, and air conditioner with the device |
-
2014
- 2014-06-23 CN CN201420336200.XU patent/CN203940945U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424263A (en) * | 2015-12-31 | 2016-03-23 | 美的集团武汉制冷设备有限公司 | Method and device for detecting installation specification of air conditioner, and air conditioner with the device |
| CN105424263B (en) * | 2015-12-31 | 2018-11-13 | 美的集团武汉制冷设备有限公司 | Detect the method, apparatus and air conditioner of air conditioner installation specification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ARCHITECTURE DESIGN INSTITUTE CO., LTD. Free format text: FORMER OWNER: CHINA INSTITUTE OF BUILDING STANDARD DESIGN + RESEARCH Effective date: 20150706 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150706 Address after: 100044 Beijing City, the number of cars on the main street, Xicheng District Patentee after: CHINA ARCHITECTURE DESIGN INSTITUTE CO., LTD. Patentee after: Beijing University of Civil Engineering and Architecture Address before: 100044 Beijing City, the number of cars on the main street, Xicheng District Patentee before: China Architecture Design & Research Institute Patentee before: Beijing University of Civil Engineering and Architecture |