CN202835779U - Hot air generator - Google Patents
Hot air generator Download PDFInfo
- Publication number
- CN202835779U CN202835779U CN2012203911031U CN201220391103U CN202835779U CN 202835779 U CN202835779 U CN 202835779U CN 2012203911031 U CN2012203911031 U CN 2012203911031U CN 201220391103 U CN201220391103 U CN 201220391103U CN 202835779 U CN202835779 U CN 202835779U
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- CN
- China
- Prior art keywords
- combustion chamber
- gas
- furnace body
- temperature
- chamber
- 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 - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model discloses a hot air generator used for indirectly heating a heating furnace body with temperature of lower than 300 DEG C. The hot air generator is provided with a combustion chamber, a mixing chamber and a connecting passage, wherein the mixing chamber is connected with the combustion chamber; the connecting passage is connected with a furnace body; a burner is arranged in the combustion chamber; the part of the burner outside the combustion chamber is respectively connected with a natural gas inlet pipe and a preheated air inlet pipe; a recycling pipeline capable of leading in furnace body low temperature recycled smoke gas; and a diffusion chamber capable of reducing gas pressure is arranged between the mixing chamber and the connecting passage. According to the utility model, after high temperature smoke gas generated through combustion of the burner and the recycled furnace body low temperature smoke gas are mixed in the mixing chamber through a Venturi principle, a mixed smoke gas is led into the furnace body after the pressure of the mixed smoke gas is reduced by using the diffusion chamber; therefore, purposes of heating the low temperature recycled gas by the natural gas within a minimum volume and achieving good temperature uniformity are achieved, and the temperature of the mixed gas satisfies use requirements of the furnace body.
Description
Technical field
The utility model relates to and a kind ofly can effectively utilize heating furnace body low temperature gas recovery and realize the heat blower that temperature homogeneity is good.
Background technology
At the used heating furnace of the industries such as baking vanish, used flue-gas temperature is general all below 300 degree, directly uses combustion of natural gas, the temperature that produces is higher, can't satisfy instructions for use, therefore usually needs temperature is reduced to appropriate level, pass into again in the heating furnace body, caused energy waste.And the flue gas that body of heater is discharged belongs to cryogenic gas, the low-temperature flue gas that how effectively to utilize body of heater to discharge, and energy savings realizes the temperature mixing uniformity, satisfies instructions for use, is a kind of considerable scheme.
The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in the prior art, provide a kind of and can make gas heating furnace body hypothermia gas recovery and realize the heat blower that temperature homogeneity is good in minimum volume.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of heat blower, be used for the indirect that temperature is lower than the heating furnace body of 300 degree, the interface channel that has combustion chamber, the mixing chamber that links to each other with the combustion chamber and link to each other with body of heater, be provided with burner in the described combustion chamber, the part that burner is positioned at outside the combustion chamber is connected with respectively natural gas air inlet pipe and preheated air air inlet pipe, be connected with the recovery channel that can pass into body of heater low temperature recovered flue gas on the described combustion chamber, be provided with the diffuser casing that can reduce gas pressure between mixing chamber and the interface channel.
Further, described combustion chamber has stretched section and cone segments, and burner stretches in the combustion chamber from the stretched section, and the small end of cone segments links to each other with mixing chamber.
Described diffuser casing is cone-shaped, and the large end of cone links to each other with interface channel, and the small end of cone links to each other with mixing chamber.
The beneficial effects of the utility model are: the utility model utilizes the high-temperature flue gas of burner combustion generation and the body of heater low-temperature flue gas of recovery, after in mixing chamber, utilizing venturi principle to mix, after reducing pressure, diffuser casing passes into body of heater again, realized in minimum volume heated by natural gas low temperature gas recovery and reached the good purpose of temperature homogeneity, made the mist temperature satisfy the body of heater instructions for use.
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
1. combustion chambers, 2. mixing chambers, 3. interface channels, 4. burners, 5. natural gas air inlet pipe, 6. preheated air air inlet pipe, 7. recovery channels, 8. diffuser casings among the figure
The specific embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of heat blower as shown in Figure 1, be used for the indirect that temperature is lower than the heating furnace body of 300 degree, the interface channel 3 that has combustion chamber 1, the mixing chamber 2 that links to each other with combustion chamber 1 and link to each other with body of heater, combustion chamber 1 has stretched section and cone segments, be provided with burner 4 in the described combustion chamber 1, burner 4 stretches in combustion chamber 1 from the stretched section of combustion chamber 1, and the small end of combustion chamber 1 cone segments links to each other with mixing chamber 2.
Burner 4 is positioned at combustion chamber 1 outer part and is connected with respectively natural gas air inlet pipe 5 and preheated air air inlet pipe 6, be connected with the recovery channel 7 that can pass into body of heater low temperature recovered flue gas on the combustion chamber 1, be provided with the diffuser casing 8 that can reduce gas pressure between mixing chamber 2 and the interface channel 3, described diffuser casing 8 is cone-shaped, the large end of its cone links to each other with interface channel 3, to reduce flue gas pressures, the small end of cone links to each other with mixing chamber 2.
Natural gas passes into burner 4 from natural gas air inlet pipe 5, preheated air passes into burner 4 combustion-supporting natural gases from preheated air air inlet pipe 6, produce high-temperature flue gas by burner 4 burnings, meanwhile, pass into the body of heater low temperature recovered flue gas of combustion chamber 1 from recovery channel 7, with high-temperature flue gas mixing chamber 2 is interior utilize venturi principle to mix after, after reducing pressure, diffuser casing 8 passes into body of heater again, realize in minimum volume heated by natural gas low temperature gas recovery and reached the good purpose of temperature homogeneity, save the energy, also be conducive to environmental protection.
The utility model has adopted injection type hot air circulation mentality of designing, after utilizing high-temperature flue gas and the body of heater low-temperature flue gas of recovery mixing in mixing chamber 2, after reducing pressure, diffuser casing 8 passes into body of heater, and can regulate as required the flue-gas temperature that enters body of heater and the uniformity of temperature, make the mist temperature satisfy the body of heater instructions for use.
Above-mentioned embodiment only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (3)
1. heat blower, be used for the indirect that temperature is lower than the heating furnace body of 300 degree, has combustion chamber (1), the mixing chamber (2) that links to each other with combustion chamber (1) and the interface channel (3) that links to each other with body of heater, be provided with burner (4) in the described combustion chamber (1), burner (4) is positioned at the outer part in combustion chamber (1) and is connected with respectively natural gas air inlet pipe (5) and preheated air air inlet pipe (6), it is characterized in that: be connected with the recovery channel (7) that can pass into body of heater low temperature recovered flue gas on described combustion chamber (1), be provided with the diffuser casing (8) that can reduce gas pressure between mixing chamber (2) and the interface channel (3).
2. heat blower according to claim 1, it is characterized in that: described combustion chamber (1) has stretched section and cone segments, and burner (4) stretches in combustion chamber (1) from the stretched section, and the small end of cone segments links to each other with mixing chamber (2).
3. heat blower according to claim 1 is characterized in that: described diffuser casing (8) is cone-shaped, and the large end of cone links to each other with interface channel (3), and the small end of cone links to each other with mixing chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203911031U CN202835779U (en) | 2012-08-08 | 2012-08-08 | Hot air generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203911031U CN202835779U (en) | 2012-08-08 | 2012-08-08 | Hot air generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202835779U true CN202835779U (en) | 2013-03-27 |
Family
ID=47947471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203911031U Expired - Lifetime CN202835779U (en) | 2012-08-08 | 2012-08-08 | Hot air generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202835779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574891A (en) * | 2013-10-29 | 2014-02-12 | 中国科学院过程工程研究所 | Hot air generating system with stably adjustable air volume and temperature and hot air generating method |
| CN111947300A (en) * | 2020-08-14 | 2020-11-17 | 山东华宇工学院 | Circulating heat exchange device and method for improving heat exchange efficiency |
-
2012
- 2012-08-08 CN CN2012203911031U patent/CN202835779U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574891A (en) * | 2013-10-29 | 2014-02-12 | 中国科学院过程工程研究所 | Hot air generating system with stably adjustable air volume and temperature and hot air generating method |
| CN103574891B (en) * | 2013-10-29 | 2016-03-16 | 中国科学院过程工程研究所 | The hot blast generation systems that a kind of air quantity and temperature Absorbable organic halogens regulate and method |
| CN111947300A (en) * | 2020-08-14 | 2020-11-17 | 山东华宇工学院 | Circulating heat exchange device and method for improving heat exchange efficiency |
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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: 20130327 |
|
| CX01 | Expiry of patent term |