CN203891421U - Exhaust device preventing gas from flowing backward - Google Patents
Exhaust device preventing gas from flowing backward Download PDFInfo
- Publication number
- CN203891421U CN203891421U CN201420325746.5U CN201420325746U CN203891421U CN 203891421 U CN203891421 U CN 203891421U CN 201420325746 U CN201420325746 U CN 201420325746U CN 203891421 U CN203891421 U CN 203891421U
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- CN
- China
- Prior art keywords
- main exhaust
- discharge pipe
- branched discharge
- exhaust
- gas
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an exhaust device preventing gas from flowing backward. The device mainly comprises a main exhaust pipe and branch exhaust pipes. The branch exhaust pipes are arranged in the main exhaust pipe, air inlets of the branch exhaust pipes are disposed in the main exhaust pipe, and air outlets of the branch exhaust pipes are disposed in the main exhaust pipe. The device is structurally characterized in that the multi-section branch exhaust pipes are arranged in the main exhaust pipe, and has the advantages that pressure differences of the air inlets and the air outlets are large, and backflow prevention capacity is high.
Description
Technical field
The utility model relates to a kind of device that utilizes pipeline air exhaust water, specifically a kind of exhaust plant that prevents that gas from pouring in down a chimney.
Background technology
At present, the extract duct of highrise building is that main exhaust is set, each interlayer is provided with branched discharge pipe, and the air inlet port of branched discharge pipe is arranged on main exhaust, and the gas outlet of branched discharge pipe is arranged in main exhaust, branched discharge pipe arranges a joint in main exhaust, the length of one joint is to cross the floor on upper strata substantially, because the branched discharge pipe length of a joint is shorter, the pressure differential of the gas inlet and outlet of arranging is little, and be straight tube, the ability of anti-fall filling is poor.
Summary of the invention
The pressure differential that task of the present utility model is to provide a kind of arranged gas inlet and outlet is large, and anti-fall filling ability is strong prevents the exhaust plant that gas pours in down a chimney.
For realizing above-mentioned task, technical solution of the present utility model is:
A kind of exhaust plant that prevents that gas from pouring in down a chimney, mainly by main exhaust, branched discharge pipe, formed, branched discharge pipe is arranged in main exhaust, the air inlet port of branched discharge pipe is arranged on main exhaust, the gas outlet of branched discharge pipe is arranged in main exhaust, is the branched discharge pipe that a plurality of more pieces are set in main exhaust.
Described a kind of exhaust plant that prevents that gas from pouring in down a chimney is the branched discharge pipe that a plurality of two joints are set in main exhaust.
Described a kind of exhaust plant that prevents that gas from pouring in down a chimney is the branched discharge pipe that a plurality of three joints are set in main exhaust.
The utlity model has following advantage:
1, because the length of branched discharge pipe of the present utility model is longer, the pressure differential of the gas inlet and outlet of arranging is large, can natural circulation ventilate, and smooth gas discharge.
2, because branched discharge pipe of the present utility model is designed to curved tube, and the pressure differential of the gas inlet and outlet of arranging is large, has strengthened anti-fall filling ability.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model arranges a plurality of two joint branched discharge pipes in main exhaust.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the structural representation that the utility model arranges a plurality of three joint branched discharge pipes in main exhaust.
Fig. 4 is the sectional view of Fig. 3.
Fig. 5 is that the utility model arranges the structural representation that a plurality of two joint branched discharge pipes are used state in main exhaust.
Fig. 6 is that the utility model arranges the structural representation that a plurality of three joint branched discharge pipes are used state in main exhaust.
The specific embodiment
Embodiment 1, as shown in Figure 1, a kind of exhaust plant that prevents that gas from pouring in down a chimney, mainly by main exhaust 1, branched discharge pipe 2, formed, branched discharge pipe 2 is arranged in main exhaust 1, the air inlet port of branched discharge pipe 2 is arranged on main exhaust 1, and the gas outlet of branched discharge pipe 2 is arranged in main exhaust 1, and the branched discharge pipe 2 of a plurality of two joints is installed in main exhaust 1.
Embodiment 2, as shown in Figure 3, a kind of exhaust plant that prevents that gas from pouring in down a chimney, mainly by main exhaust 1, branched discharge pipe 2, formed, branched discharge pipe 2 is arranged in main exhaust 1, the air inlet port of branched discharge pipe 2 is arranged on main exhaust 1, and the gas outlet of branched discharge pipe 2 is arranged in main exhaust 1, and the branched discharge pipe 2 of a plurality of three joints is installed in main exhaust 1.
Claims (3)
1. an exhaust plant that prevents that gas from pouring in down a chimney, comprise main exhaust, branched discharge pipe, branched discharge pipe is arranged in main exhaust, the air inlet port of branched discharge pipe is arranged on main exhaust, the gas outlet of branched discharge pipe is arranged in main exhaust, it is characterized in that: the branched discharge pipe that a plurality of more pieces are set in main exhaust.
2. a kind of exhaust plant that prevents that gas from pouring in down a chimney according to claim 1, is characterized in that: the branched discharge pipe that a plurality of two joints are set in main exhaust.
3. a kind of exhaust plant that prevents that gas from pouring in down a chimney according to claim 1, is characterized in that: the branched discharge pipe that a plurality of three joints are set in main exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325746.5U CN203891421U (en) | 2014-06-11 | 2014-06-11 | Exhaust device preventing gas from flowing backward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325746.5U CN203891421U (en) | 2014-06-11 | 2014-06-11 | Exhaust device preventing gas from flowing backward |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203891421U true CN203891421U (en) | 2014-10-22 |
Family
ID=51717837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325746.5U Expired - Fee Related CN203891421U (en) | 2014-06-11 | 2014-06-11 | Exhaust device preventing gas from flowing backward |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203891421U (en) |
-
2014
- 2014-06-11 CN CN201420325746.5U patent/CN203891421U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Duan Yaming Document name: Notice of termination of patent |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20200611 |