CN202560354U - Secondary air supply device of silencer - Google Patents
Secondary air supply device of silencer Download PDFInfo
- Publication number
- CN202560354U CN202560354U CN2012200732326U CN201220073232U CN202560354U CN 202560354 U CN202560354 U CN 202560354U CN 2012200732326 U CN2012200732326 U CN 2012200732326U CN 201220073232 U CN201220073232 U CN 201220073232U CN 202560354 U CN202560354 U CN 202560354U
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- CN
- China
- Prior art keywords
- air supply
- silencer
- wind scooper
- air
- supply valve
- 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 a secondary air supply device of a silencer. The secondary air supply device of a silencer comprises an air inlet bend pipe and a wind scooper. The secondary air supply device of a silencer is characterized in that the inclined side surface of the wind scooper is provided with an air supply valve, the side of the air supply valve far from the fan of the wind scooper is provided with a wind shield, and the air supply valve is communicated with the air inlet bend pipe through a high temperature air pipe. According to the apparatus provided in the utility model, the air supply valve is arranged on the wind scooper, air is supplied for the air supply valve through the fan in the wind scooper, fresh air supplied for the air supply valve is transmitted to the air inlet bend pipe, and the fresh air and the tail gas of the air inlet bend pipe together penetrates into the catalyst of the silencer for processing. Thereby the catalyst in the silencer can obtain sufficient and stable oxygen, HC and CO in the tail gas can be fully reacted, and harmful substance contents in the discharged tail gas of the silencer can reach the standard.
Description
Technical field
The utility model relates to the acoustic wave filter structure in the generator, relates in particular to the secondary air compensating device in the silencing apparatus.
Background technique
At present; Known silencing apparatus aeration valve mostly is mounted on the tonifying Qi manifold of silencing apparatus intake elbow or silencing apparatus; Because the breather cheek valve in the aeration valve is to utilize the pressure difference that exhaust pulses produced of motor to carry out work; When being negative pressure in the silencing apparatus suction tude; Breather cheek valve sucks air to the silencing apparatus intake elbow from the external world, on the one hand for HC (initialism of hydrocarbon) and the spontaneous combustion of CO (carbon monoxide) high temperature in the waste gas provide oxygen, be the efficient operation supplemental oxygen of the oxidation catalyst in the catalyst in the silencing apparatus on the other hand.Whether the aeration valve in this secondary air compensating scheme plays the pressure difference that exhaust pulses produced that motor is depended in the tonifying Qi effect fully; When pressure difference exists; Aeration valve just can play the tonifying Qi effect; When the pressure difference that exhaust pulses produced of motor was unstable, the tonifying Qi effect of aeration valve was also unstable, and this moment, the oxidation effectiveness of silencing apparatus inner catalyst was also unstable; HC the tail gas of then in silencing apparatus, discharging and CO content are also unstable, even possibly cause exhaust emissions not up to standard sometimes.
Summary of the invention
The purpose of the utility model provides the secondary air compensating device in the sufficient silencing apparatus of a kind of secondary air compensating.
The technological scheme of the utility model is: the secondary air compensating device in the silencing apparatus; It comprises intake elbow and wind scooper, is provided with fan in the wind scooper, and the prism of said wind scooper is provided with aeration valve; Aeration valve one side is provided with barge board, and aeration valve is communicated with intake elbow by the high temperature tracheae.
Said intake elbow one end is connected with silencing apparatus, and the other end is connected with the offgas duct of generator.
Adopt the device of the utility model; Aeration valve is installed on the wind scooper; Utilize the fan in the wind scooper that aeration valve is carried out tonifying Qi, aeration valve is delivered in the intake elbow mending the fresh air of going into, and the tail gas in intake elbow gets into the catalyst of silencing apparatus and handles.The catalyzer of the catalyst in the silencing apparatus just can obtain abundance, stable oxygen like this, and HC in the tail gas and CO just can fully react, and the content of harmful in the tail gas that guarantees to discharge in the silencing apparatus is up to standard.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the structural representation of the secondary air compensating device in the utility model silencing apparatus.
Embodiment
As shown in Figure 1, the secondary air compensating device in the utility model silencing apparatus, it comprises intake elbow 1 and wind scooper 2; Be provided with fan 3 in the wind scooper 2; The prism of said wind scooper 2 is provided with aeration valve 4, and aeration valve 4 one sides are provided with barge board 5, and aeration valve 4 is communicated with intake elbow 1 by high temperature tracheae 6.
Said intake elbow 1 one ends are connected with silencing apparatus, and the other end is connected with the offgas duct of generator.
Adopt above device, be installed in aeration valve 4 on the wind scooper 2, the fan 3 in the wind scooper 2 rotates; Aeration valve 4 is carried out tonifying Qi; Aeration valve 4 one sides are provided with barge board 5, and barge board 5 reflexes to the air-flow that fan 3 blows on it on aeration valve 4, make full use of the air-flow that fan 3 produces; Aeration valve 4 is delivered in the intake elbow 1 through the breather cheek valve in it mending the fresh air of going into, and the tail gas in intake elbow 1 gets into the catalyst of silencing apparatus and handles.The catalyzer of the catalyst in the silencing apparatus just can obtain abundance, stable oxygen like this, and HC in the tail gas and CO just can fully react, and the content of harmful in the tail gas that guarantees to discharge in the silencing apparatus is up to standard.
Claims (2)
1. the secondary air compensating device in the silencing apparatus; It comprises intake elbow and wind scooper, is provided with fan in the wind scooper, it is characterized in that: the prism of said wind scooper is provided with aeration valve; Aeration valve one side is provided with barge board, and aeration valve is communicated with intake elbow by the high temperature tracheae.
2. the secondary air compensating device in the silencing apparatus according to claim 1 is characterized in that: said intake elbow one end is connected with silencing apparatus, and the other end is connected with the offgas duct of generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200732326U CN202560354U (en) | 2012-03-01 | 2012-03-01 | Secondary air supply device of silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200732326U CN202560354U (en) | 2012-03-01 | 2012-03-01 | Secondary air supply device of silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560354U true CN202560354U (en) | 2012-11-28 |
Family
ID=47210018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200732326U Expired - Fee Related CN202560354U (en) | 2012-03-01 | 2012-03-01 | Secondary air supply device of silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080866A (en) * | 2019-05-31 | 2019-08-02 | 重庆大江动力设备制造有限公司 | A kind of emission reduction device on generating set |
-
2012
- 2012-03-01 CN CN2012200732326U patent/CN202560354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080866A (en) * | 2019-05-31 | 2019-08-02 | 重庆大江动力设备制造有限公司 | A kind of emission reduction device on generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20121128 Termination date: 20160301 |