CN203050048U - Gas flow pressure measuring device for ventilating duct for residence and valve on ventilating duct - Google Patents
Gas flow pressure measuring device for ventilating duct for residence and valve on ventilating duct Download PDFInfo
- Publication number
- CN203050048U CN203050048U CN 201220660920 CN201220660920U CN203050048U CN 203050048 U CN203050048 U CN 203050048U CN 201220660920 CN201220660920 CN 201220660920 CN 201220660920 U CN201220660920 U CN 201220660920U CN 203050048 U CN203050048 U CN 203050048U
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- pipeline
- exhaust duct
- valve
- gas flow
- ventilating duct
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Abstract
A gas flow pressure measuring device for a ventilating duct for a residence and a valve on the ventilating duct comprises pipeline (1). The gas flow pressure measuring device is characterized in that: the inlet of the pipeline (1) is provided with a fireproof cover (2); the pipeline at the outlet end of the fireproof cover (2) is provided with a heat exchanger (3); the pipeline at the outlet end of the heat exchanger (3) is provided with rectifier (4); the pipeline at the outlet end of the rectifier (4) is provided with an orifice-plate flowmeter (5); and the outlet end of the orifice-plate flowmeter (5) is connected with an induced draft fan (7) through a flexible pipe (6). The gas flow pressure measuring device for the ventilating duct for residence and the valve on the ventilating duct provided by the utility model has the following functions: realizing automatic control for key indexes such as air leakage amount and front-and-back pressure difference of the valve, and satisfying a requirement for detecting refractory performances of the ventilating duct and the valve on the ventilating duct according to specification in detection standard together with a building element refractory test furnace. The gas flow pressure measuring device further has the following advantages: simple structure of the whole device, high versatility, high measuring accuracy and high precision.
Description
Technical field
The utility model belongs to building detection technique field, specifically just relates to the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct and the exhaust duct.
Background technology
The security against fire in building place is emphasis safety index, the especially heavy construction of building field.Equal unified exhaust duct that assembled between the kitchen of present large-scale inhabitation community is concentrated discharging to collect kitchen flue gas, at the exhaust road junction fire-protection valve has been installed also, and when avoiding breaking out of fire, flame or high-temperature flue gas spread to other floors through exhaust duct.Because the product quality of exhaust duct and valve thereof will have a strong impact on resident's personal safety as well as the property safety, so various countries have all stipulated the pressure standard to it.
State Standard of the People's Republic of China's " fire resistance test method of ventilating duct " GB 17428-1998, " oil extraction flue gas fire-preventing check valve " GA/T 798-2008 and " building ventilation and smoke evacuation system fire-protection valve " GB 15930-2007 have stipulated test principle, experimental rig, test conditions, test procedure, fire resistance decision condition and the test report content of exhaust duct and valve type fire resistance test, and described standard is applicable to the Performance Detection of house kitchen, washroom exhaust duct, oil extraction flue gas fire-preventing check valve, fire resisting damper, exhaust smoke valve, smoke evacuation fire resisting damper.
Though the performance standard that has Related product to reach does not at present have coherent detection equipment that the moulding that meets standard detection checkout equipment can be provided.Problems such as existing checkout equipment all is that each detects unit according to self detecting needs development separately temporarily, and is all comparatively backward in hardware outfit or software design, and there is not the data acquisition instability in unified standard, and precision is not high, and control mode is backward.
The utility model content
Technical problem to be solved in the utility model is exactly the technical barrier that does not have the checkout equipment of unified standard at the fire resistance of existing building exhaust duct and exhaust duct valve, the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct and the exhaust duct is provided, can realize key index such as control inleakage, valve front and back pressure reduction automatically, satisfy the detection demand of stipulating in the examination criteria.
Technical scheme
In order to realize above-mentioned technical purpose, the utility model designs the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct and the exhaust duct, it comprises pipeline, it is characterized in that: the import department of described pipeline is equipped with fire resisting damper, on the pipeline of the fire resisting damper port of export heat exchanger is installed, on the port of export pipeline of heat exchanger tube rectifier is installed, on the outlet conduit of rectifier orifice flowmeter is housed, the orifice flowmeter port of export is connected with air-introduced machine by flexible pipe.
Have the differential pressure measurement interface on the import of described fire resisting damper, the outlet conduit;
Have the differential pressure measurement interface on described orifice flowmeter import, the outlet conduit;
Have the differential pressure measurement interface on the inlet pipeline of described flexible pipe;
Have scavenge port on the pipeline of described rectifier entrance point.
Described pipeline is installed on the bracing frame, and instrument box is contained on the bracing frame.
Described steel for pipe pipe is formed by connecting by flange, and pipeline takes the shape of the letter U, and pipe bending place curvature is 1.5 times pipe diameter.
Described scavenge port diameter is less than 0.08 times pipe diameter.
On described heat exchanger and rectifier separation pipeline two is long-armed.
Beneficial effect
The utility model provide the dwelling house exhaust duct and exhaust duct on the pressure gas flow measurement mechanism of valve, can realize controlling automatically before and after inleakage, the valve key indexs such as pressure reduction, satisfy the detection demand of stipulating in the examination criteria.Entire equipment is simple in structure, and highly versatile is measured accurately the precision height.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment:
As shown in Figure 1, the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct and the exhaust duct, it comprises pipeline 1, wherein, the import department of described pipeline 1 is equipped with fire resisting damper 2, on the pipeline of fire resisting damper 2 ports of export heat exchanger 3 is installed, and on the port of export pipeline of heat exchanger tube 3 rectifier 4 is installed, orifice flowmeter 5 is housed on the outlet conduit of rectifier 4, and orifice flowmeter 5 ports of export are connected with air-introduced machine 7 by flexible pipe 6;
Have the differential pressure measurement interface on the import of described fire resisting damper 2, the outlet conduit;
Described orifice flowmeter advances on 5 mouthfuls, outlet conduit to have the differential pressure measurement interface;
Have the differential pressure measurement interface on the inlet pipeline of described flexible pipe 6;
Have scavenge port 8 on the pipeline of described rectifier 4 entrance points.
Described pipeline 1 is installed on the bracing frame 9, and instrument box 10 is contained on the bracing frame 9.
Described pipeline 1 usefulness steel pipe is formed by connecting by flange, and pipeline 1 takes the shape of the letter U, and pipeline 1 knee curvature is 1.5 times pipe diameter.
Described scavenge port 8 diameters are less than 0.08 times pipe diameter.
Support frame as described above is equipped with pulley 11 9 times.
On described heat exchanger 3 and rectifier 4 separation pipelines two are long-armed.
For example exhaust duct or valve type are installed on the connecting pipe 1 with sample, open air-introduced machine 7, automatically regulate the power of air-introduced machine 7 by the size of setting fire resisting damper 2 front and back pressure reduction or inleakage, be transferred to servo-controlled air-introduced machine 7 by the data that collect at differential pressure measurement interface connection measuring apparatus through controlling parameter after the Computer Processing simultaneously, the size of pressure reduction or inleakage is remained near the setting value in process of the test.
The utility model provide the dwelling house exhaust duct and exhaust duct on the pressure gas flow measurement mechanism of valve, can realize controlling automatically before and after inleakage, the valve key indexs such as pressure reduction, satisfy the detection demand of stipulating in the examination criteria.Entire equipment is simple in structure, and highly versatile is measured accurately the precision height.
Claims (6)
1. the pressure gas flow measurement mechanism of valve on a dwelling house exhaust duct and the exhaust duct, it comprises pipeline (1), it is characterized in that: the import department of described pipeline (1) is equipped with fire resisting damper (2), on the pipeline of fire resisting damper (2) port of export heat exchanger (3) is installed, rectifier (4) is installed on the port of export pipeline of heat exchanger tube (3), orifice flowmeter (5) is housed on the outlet conduit of rectifier (4), and orifice flowmeter (5) port of export is connected with air-introduced machine (7) by flexible pipe (6);
Have the differential pressure measurement interface on the import of described fire resisting damper (2), the outlet conduit;
Have the differential pressure measurement interface on described orifice flowmeter import (5), the outlet conduit;
Have the differential pressure measurement interface on the inlet pipeline of described flexible pipe (6);
Have scavenge port (8) on the pipeline of described rectifier (4) entrance point.
2. the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct as claimed in claim 1 and the exhaust duct, it is characterized in that: described pipeline (1) is installed on the bracing frame (9), and instrument box (10) is contained on the bracing frame (9).
3. the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct as claimed in claim 1 and the exhaust duct, it is characterized in that: described pipeline (1) is formed by connecting by flange with steel pipe, pipeline (1) takes the shape of the letter U, and pipeline (1) knee curvature is 1.5 times pipe diameter.
4. the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct as claimed in claim 1 and the exhaust duct is characterized in that: described scavenge port (8) diameter is less than 0.08 times pipe diameter.
5. the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct as claimed in claim 1 and the exhaust duct is characterized in that: pulley (11) is installed under the support frame as described above (9).
6. the pressure gas flow measurement mechanism of valve on a kind of dwelling house exhaust duct as claimed in claim 1 and the exhaust duct is characterized in that: on described heat exchanger (3) and rectifier (4) separation pipeline two are long-armed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660920 CN203050048U (en) | 2012-12-04 | 2012-12-04 | Gas flow pressure measuring device for ventilating duct for residence and valve on ventilating duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660920 CN203050048U (en) | 2012-12-04 | 2012-12-04 | Gas flow pressure measuring device for ventilating duct for residence and valve on ventilating duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050048U true CN203050048U (en) | 2013-07-10 |
Family
ID=48733015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660920 Expired - Lifetime CN203050048U (en) | 2012-12-04 | 2012-12-04 | Gas flow pressure measuring device for ventilating duct for residence and valve on ventilating duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006936A (en) * | 2014-06-05 | 2014-08-27 | 山东省产品质量检验研究院 | Device and method for detecting air leakage and fireproof performance of fireproof valve |
| CN109556665A (en) * | 2018-11-26 | 2019-04-02 | 北京金盾华通科技有限公司 | A kind of exhaust uptake resistance and air leakage rate testing system and method |
-
2012
- 2012-12-04 CN CN 201220660920 patent/CN203050048U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006936A (en) * | 2014-06-05 | 2014-08-27 | 山东省产品质量检验研究院 | Device and method for detecting air leakage and fireproof performance of fireproof valve |
| CN109556665A (en) * | 2018-11-26 | 2019-04-02 | 北京金盾华通科技有限公司 | A kind of exhaust uptake resistance and air leakage rate testing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
|
| CX01 | Expiry of patent term |