CN201438035U - Pre-mixing wall-mounted gas boiler with airflow noise-removing device - Google Patents
Pre-mixing wall-mounted gas boiler with airflow noise-removing device Download PDFInfo
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- CN201438035U CN201438035U CN2009200599972U CN200920059997U CN201438035U CN 201438035 U CN201438035 U CN 201438035U CN 2009200599972 U CN2009200599972 U CN 2009200599972U CN 200920059997 U CN200920059997 U CN 200920059997U CN 201438035 U CN201438035 U CN 201438035U
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- deflector
- fairing cap
- premixed
- wall hanging
- hanging furnace
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Abstract
A pre-mixing wall-mounted gas boiler with an airflow noise-removing device comprises an air inlet pipe, a gas inlet pipe, a mixer, a fan, a gas/air proportioning valve, a mixed gas guide sleeve, an internal combustion type heat exchanger and a gas guide pipe, and is technically characterized in that the end face of the air inlet pipe is provided with an air inlet cavity, the air inlet cavity comprises a guide cover, a guide plate and involuted guide sheets arranged between the guide cover and the guide plate, the guide sheets are distributed along the center of the guide plate in the radial direction, and the air inlet cavity is communicated with the air inlet pipe. The utility model has the advantages of effectively reducing the airflow noise, reducing material, lowering the cost and the like.
Description
Technical field: the utility model relates to a kind of with the premixed burnt gas wall hanging furnace of eliminating the pneumatic noise device.
Background technology: in the prior art, the heat exchanger of premixed burnt gas wall hanging furnace is the internal combustion type heat exchanger, by the blower fan air blast, the air that burning is required is fully mixed at blender and combustion gas, this combustion system produces pneumatic noise in air intake duct import department easily when igniting and operation, usually need silencing means to be installed at air inlet, and existing silencing means mainly be by the soft acoustic material of liner, change cavity cross-section long-pending, increase modes such as path-length and increase fluid resistance and reduce noise, cause defectives such as having materials are many, cost height.In order to overcome these defectives, band is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device and developed.
Summary of the invention: technical problem to be solved in the utility model is to provide that a kind of it can effectively reduce pneumatic noise with the premixed burnt gas wall hanging furnace of eliminating the pneumatic noise device, reduces material and reduces cost.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises air intake duct, gas inlet pipe, blender, air blast, GAS control valve, gaseous mixture guide pin bushing, internal combustion type heat exchanger, wireway, the end face of air intake duct is provided with the air inlet cavity, described air inlet cavity comprises fairing cap, deflector and the gradually open form flow deflector between fairing cap and deflector, flow deflector is along the center radial distribution of deflector, and the air inlet cavity is communicated with air intake duct by fairing cap.
Described air intake duct is round tubular body, and fairing cap and deflector are circular slab, and fairing cap overlaps by the circle center with deflector and is connected, and the round center of air intake duct end face overlaps with the round center of fairing cap.
The sectional area of described fairing cap is greater than the sectional area of deflector.
The sectional area of described fairing cap equates with the sectional area of deflector.
Described flow deflector is a starting point with the center circumferential of deflector, along the radially evenly distribution of round center of deflector.
Described flow deflector is a starting point with the center circumferential of deflector, the non-uniform Distribution radially along the round center of deflector.
Described flow deflector is a starting point with the center circumferential of deflector, radially distributes with Archimedes spiral shape along the round center of deflector.
Described fairing cap and deflector hot melt are one.
Described fairing cap is connected with the deflector screw.
Described fairing cap and deflector snapping.
The utility model is compared the beneficial effect that is produced with background technology:
1, because the utility model adopts the end face of air intake duct to be provided with the air inlet cavity, described air inlet cavity comprises fairing cap, deflector and the gradually open form flow deflector between fairing cap and deflector, flow deflector is along the center radial distribution of deflector, the structure that the air inlet cavity is communicated with air intake duct by fairing cap, so it can effectively reduce pneumatic noise, reduce material and reduce cost.
Description of drawings: Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the annexation enlarged drawing of air intake duct 1 and air inlet cavity 12 among Fig. 1.
Fig. 3 is the structural representation of air intake duct 1 among Fig. 2.
Fig. 4 is the structure enlarged drawing of fairing cap 2 among Fig. 2.
Fig. 5 is the structural representation of deflector 3 among Fig. 2, flow deflector 11.
Fig. 6 is a kind of schematic cross-section of deflector 3 among Fig. 2, flow deflector 11.
Fig. 7 is the another kind of schematic cross-section of deflector 3 among Fig. 2, flow deflector 11.
Fig. 8 is the course of work schematic diagram of fairing cap 2 among Fig. 2, deflector 3, flow deflector 11.
The specific embodiment: shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, present embodiment comprises air intake duct 1, gas inlet pipe 4, blender 5, air blast 6, GAS control valve 7, gaseous mixture guide pin bushing 8, internal combustion type heat exchanger 9, wireway 10, air inlet cavity 12.Air intake duct 1 is round tubular body, as shown in Figure 3, its end face is provided with air inlet cavity 12, and air inlet cavity 12 comprises fairing cap 2, deflector 3 and the gradually open form flow deflector 11 between fairing cap 2 and deflector 3, and air inlet cavity 12 is communicated with air intake duct 1 by fairing cap 2.In the present embodiment, fairing cap 2 and deflector 3 are circular slab, and fairing cap 2 overlaps with the round center of deflector 3 and is connected, and the end face of air intake duct 1 overlaps with the round center of fairing cap 2, and the sectional area of fairing cap 2 is greater than or equal to the sectional area of deflector 3.Flow deflector 11 is a starting point with the center circumferential of deflector 3, radially evenly distributes or non-uniform Distribution along the round center of deflector 3, as Fig. 6, shown in Figure 7.Flow deflector 11 is a starting point with the center circumferential of deflector 3 in the present embodiment, radially distributes with Archimedes spiral shape along the round center of deflector 3.The modes such as screw connection, snapping that can be between fairing cap 2, flow deflector 11 and the deflector 3 connect, and perhaps fairing cap 2, flow deflector 11 and deflector 3 usefulness mold hot fuse into one.The silencing means that the structure that the air inlet cavity is communicated with air intake duct by fairing cap constitutes has reduced the length of air intake duct 1 and has reached the effect of noise reduction, has reduced material, has lowered cost.
The heat exchanger of premixed burnt gas wall hanging furnace is the internal combustion type heat exchanger, the flue gas exhaust pipe is connected to the flue gas discharge opening of internal combustion type heat exchanger 9, the two ends of gaseous mixture guide pin bushing 8 are communicated with air blast 6 and 9 sealings of internal combustion type heat exchanger respectively, blender 5 is connected with the air inlet of air intake duct 1, gas inlet pipe 4 and air blast 6, and blender 5 is provided with an air capacity feedback port and is connected with GAS control valve 7 by a wireway 10.By air blast 6 air blast, the air that burning is required is mixed at blender 5 and fuel in certain proportion, by gaseous mixture guide pin bushing 8 gas-air is mixed being transported to internal combustion type heat exchanger 9 inner chamber combustion heat-exchanges again.When air blast 6 air blast, air is at the draft effect deflector 3 of flowing through, under flow deflector 11 thereon and fairing cap 2 actings in conjunction, effectively change the flow direction of fluid, make air in air intake duct 1, produce the rotation turbulent flow, increase each plume and cavity friction, press in the balance, reduce resonance, thereby effectively reduce noise, as shown in Figure 8.Blender 5 transmits signal by wireway 10 and gives GAS control valve 7, ratio adjusting valve 7 is adjusted open amount, combustion gas and air are mixed in proportion, the air that burning is required is mixed at blender 5 and fuel in certain proportion, fully mixes being transported to internal combustion type heat exchanger 9 inner chamber combustion heat-exchanges again by gaseous mixture guide pin bushing 8 gas-airs.
Claims (10)
1. one kind with the premixed burnt gas wall hanging furnace of eliminating the pneumatic noise device, it comprises air intake duct (1), gas inlet pipe (4), blender (5), air blast (6), GAS control valve (7), gaseous mixture guide pin bushing (8), internal combustion type heat exchanger (9), wireway (10), the end face that it is characterized in that air intake duct (1) is provided with air inlet cavity (12), described air inlet cavity (12) comprises fairing cap (2), deflector (3) and be positioned at fairing cap (2) and deflector (3) between gradually open form flow deflector (11), flow deflector (11) is along the center radial distribution of deflector (3), and air inlet cavity (12) is communicated with air intake duct (1) by fairing cap (2).
2. band according to claim 1 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that described air intake duct (1) is round tubular body, fairing cap (2) is a circular slab with deflector (3), fairing cap (2) overlaps by the circle center with deflector (3) and is connected, and the round center of air intake duct (1) end face overlaps with the round center of fairing cap (2).
3. band according to claim 2 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that the sectional area of the sectional area of described fairing cap (2) greater than deflector (3).
4. band according to claim 2 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that the sectional area of described fairing cap (2) equates with the sectional area of deflector (3).
5. eliminate the premixed burnt gas wall hanging furnace of pneumatic noise device according to each described band of claim 2～4, it is characterized in that described flow deflector (11) is a starting point with the center circumferential of deflector (3), along the radially evenly distribution of round center of deflector (3).
6. eliminate the premixed burnt gas wall hanging furnace of pneumatic noise device according to each described band of claim 2～4, it is characterized in that described flow deflector (11) is a starting point with the center circumferential of deflector (3), non-uniform Distribution radially along the round center of deflector (3).
7. band according to claim 5 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that described flow deflector (11) is a starting point with the center circumferential of deflector (3), radially distribute with Archimedes spiral shape along the round center of deflector (3).
8. band according to claim 7 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that described fairing cap (2) and deflector (3) hot melt are one.
9. band according to claim 7 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that described fairing cap (2) is connected with deflector (3) screw.
10. band according to claim 7 is eliminated the premixed burnt gas wall hanging furnace of pneumatic noise device, it is characterized in that described fairing cap (2) and deflector (3) snapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200599972U CN201438035U (en) | 2009-07-04 | 2009-07-04 | Pre-mixing wall-mounted gas boiler with airflow noise-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200599972U CN201438035U (en) | 2009-07-04 | 2009-07-04 | Pre-mixing wall-mounted gas boiler with airflow noise-removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438035U true CN201438035U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200599972U Expired - Lifetime CN201438035U (en) | 2009-07-04 | 2009-07-04 | Pre-mixing wall-mounted gas boiler with airflow noise-removing device |
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| Country | Link |
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| CN (1) | CN201438035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595244A (en) * | 2014-12-30 | 2015-05-06 | 中国农业大学 | Non-uniform vane type flow guide device |
-
2009
- 2009-07-04 CN CN2009200599972U patent/CN201438035U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595244A (en) * | 2014-12-30 | 2015-05-06 | 中国农业大学 | Non-uniform vane type flow guide device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |