CN114963567A - Fire-proof cover of fuel oil air heater - Google Patents
Fire-proof cover of fuel oil air heater Download PDFInfo
- Publication number
- CN114963567A CN114963567A CN202210520707.XA CN202210520707A CN114963567A CN 114963567 A CN114963567 A CN 114963567A CN 202210520707 A CN202210520707 A CN 202210520707A CN 114963567 A CN114963567 A CN 114963567A
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- China
- Prior art keywords
- fire prevention
- prevention net
- fire
- net
- cover body
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- 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.)
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Links
- 239000000295 fuel oil Substances 0.000 title claims abstract description 26
- 230000002265 prevention Effects 0.000 claims abstract description 83
- 239000000446 fuel Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000008602 contraction Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
- A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The invention provides a fire-proof cover of a fuel oil air heater, and belongs to the technical field of fire prevention of air heaters. The problem of the flame that current fuel air heater appears in the use lasts the blowout is solved. The fireproof net comprises a cover body, a fireproof net component and a guide cylinder, wherein the fireproof net component is arranged in an inner cavity of the cover body, the guide cylinder penetrates through the fireproof net component and extends towards the inner side of the cover body, and the guide cylinder and the fireproof net component form an inverted U-shaped cavity on the inner side of the cover body. It is mainly used for fire prevention of fuel oil air heater.
Description
Technical Field
The invention belongs to the technical field of fire prevention of air heaters, and particularly relates to a fire prevention cover of a fuel oil air heater.
Background
The fuel oil air heater is mainly used for heating large space areas such as industrial and commercial places, animal husbandry sites, building bridges and the like, and can also be used for drying industrial products. The fuel oil air heater is used as an air heating mode emerging in the industry, can provide clean and dry hot air, and has the advantages of rapid heating, uniform temperature and rapid heat circulation. In the use, often flame lasts the blowout between outer cylinder front end of air heater and the spherical fin, and still can't solve through adjusting temperature control valve, uses extremely unsafe to the place that has flammable and explosive material.
Disclosure of Invention
In view of this, the present invention provides a fire-proof cover for a fuel oil air heater, so as to solve the problem of continuous ejection of flame during the use of the existing fuel oil air heater.
In order to realize the purpose, the invention adopts the following technical scheme: the utility model provides a fuel air heater fire prevention cover, it includes the cover body, fire prevention net subassembly and draft tube, the fire prevention net subassembly sets up at cover body inner chamber, the draft tube runs through the fire prevention net subassembly and extends to cover body inboard, the draft tube forms the shape of falling U cavity with the fire prevention net subassembly at cover body inboard.
Furthermore, the fireproof net component comprises a plurality of fireproof nets, and the plurality of fireproof nets are sequentially arranged along the inner cavity of the cover body from outside to inside at intervals.
Furthermore, the fireproof net component comprises a first-level fireproof net, a second-level fireproof net and a third-level fireproof net, the first-level fireproof net, the second-level fireproof net and the third-level fireproof net are sequentially installed in the inner cavity of the cover body from outside to inside, the guide cylinder sequentially penetrates through the first-level fireproof net, the second-level fireproof net and the third-level fireproof net, and the guide cylinder and the third-level fireproof net form an inverted U-shaped cavity body on the inner side of the cover body.
Furthermore, the front part of the guide cylinder is connected with the fireproof net component, and the rear part of the guide cylinder extends towards the inner side of the cover body.
Furthermore, a first diversion hole is formed in the center of the first-level fireproof net, a second diversion hole is formed in the center of the second-level fireproof net, a third diversion hole is formed in the center of the third-level fireproof net, the diameter of the first diversion hole is larger than that of the second diversion hole, the diameter of the third diversion hole is larger than that of the first diversion hole, and the front portion of the diversion cylinder is connected with the first diversion hole, the second diversion hole and the third diversion hole respectively.
Furthermore, along the flame flowing direction, the rear part of the guide cylinder is of an expansion structure, the front part of the guide cylinder is of a contraction structure between the second-level fireproof net and the third-level fireproof net, and the expansion structure is arranged between the first-level fireproof net and the second-level fireproof net.
Furthermore, a plurality of round holes are formed in the net surface of the first-level fireproof net, the second-level fireproof net and the third-level fireproof net, the aperture of the round hole in the first-level fireproof net is smaller than that of the second-level fireproof net and the third-level fireproof net, and the arrangement density of the round holes is larger than that of the second-level fireproof net and that of the third-level fireproof net.
Furthermore, the round holes at the corresponding positions of the second-level fireproof net and the third-level fireproof net are arranged in a staggered mode.
Furthermore, a circular hole is formed in the front of the guide shell along the circumferential direction.
Furthermore, a plurality of open grooves are formed in the tail end of the cover body along the circumferential direction.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a special fireproof cover for a fuel oil air heater, which achieves the aim of fire prevention by increasing the flow stroke of flame and changing the flow direction of the flame and simultaneously ensures the uniform dissipation of heat. The problem of the flame that the fuel air heater appears in the use lasts the blowout is solved, guarantee the safety in production, have concurrently and prevent fires and evenly dispel the heat the function. Its simple structure, simple to operate, safe and reliable, the in-service use result shows, and this fire prevention cover can realize preventing fires and radiating function, can ensure to use safely in the production place.
The fire-proof cover of the fuel oil air heater has the advantages of simple structure and convenience in installation, and can achieve the aims of fire prevention and uniform heat dissipation.
The fire-proof cover of the fuel oil air heater can block flame through three fire-proof nets with different grades, and heat can be dissipated outwards through the meshes without reduction.
The fire-proof cover of the fuel oil air heater is provided with the reverse U-shaped cavity formed by the guide cylinder and the three-level fire-proof net through the special conical structure of the guide cylinder, the guide effect on the flow of flame is achieved, the front half part of the conical guide cylinder is provided with the plurality of round holes, and the normal and uniform heat dissipation is guaranteed while fire prevention is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of a fire-proof cover of a fuel-oil air heater according to the present invention;
FIG. 2 is a schematic cross-sectional view of a fire-proof cover of a fuel-oil air heater according to the present invention;
FIG. 3 is a schematic perspective view of a fire-proof cover of a fuel-fired air heater according to the present invention;
FIG. 4 is a schematic view of a first-level fire-proof net structure in a fire-proof cover of a fuel air heater according to the present invention;
FIG. 5 is a schematic view of a two-stage fire-proof net structure in a fire-proof cover of a fuel air heater according to the present invention;
FIG. 6 is a schematic view of a three-level fire-proof net structure in a fire-proof cover of a fuel air heater according to the present invention;
fig. 7 is a schematic perspective view of a draft tube in a fire hood of a fuel air heater according to the present invention.
1-cover body, 2-first-level fire-proof net, 3-second-level fire-proof net, 4-third-level fire-proof net and 5-guide cylinder.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.
Referring to fig. 1-7 to illustrate the embodiment, the fire-proof cover of the fuel oil air heater comprises a cover body 1, a fire-proof net assembly and a guide cylinder 5, wherein the fire-proof net assembly is arranged in an inner cavity of the cover body 1, the guide cylinder 5 penetrates through the fire-proof net assembly and extends towards the inner side of the cover body 1, and the guide cylinder 5 and the fire-proof net assembly form an inverted U-shaped cavity at the inner side of the cover body 1.
The cover body 1 adopts a cylindrical structure form, can be sleeved on a heat dissipation cylinder of a fuel oil air heater, and achieves the purpose of fire prevention by increasing the flow stroke of flame and changing the flow direction of the flame.
This embodiment the fire prevention net subassembly includes a plurality of fire prevention nets, and a plurality of fire prevention nets set up along 1 inner chamber outside-in intervals in proper order of the cover body, constitutes fire protection barrier through a plurality of fire prevention nets, the combination of the cover body 1 and draft tube 5.
This embodiment the fire prevention net subassembly includes one-level fire prevention net 2, second grade fire prevention net 3 and tertiary fire prevention net 4, one-level fire prevention net 2, second grade fire prevention net 3 and tertiary fire prevention net 4 are installed in proper order to cover body 1 inner chamber outside-in, draft tube 5 runs through one-level fire prevention net 2, second grade fire prevention net 3 and tertiary fire prevention net 4 in proper order, draft tube 5 and tertiary fire prevention net 4 form the cavity of falling the U-shaped at cover body 1 inboard, draft tube 5 front portion links to each other with the fire prevention net subassembly, draft tube 5 rear portion extends to cover body 1 inboard, first water conservancy diversion hole has been seted up at one-level fire prevention net 2 center, second water conservancy diversion hole has been seted up at second grade fire prevention net 3 center, third water conservancy diversion hole has been seted up at tertiary fire prevention net 4 center, first water conservancy diversion hole diameter is greater than second water conservancy diversion hole, third water conservancy diversion hole diameter is greater than first water conservancy diversion hole, draft tube 5 front portion respectively with first water conservancy diversion hole, Second water conservancy diversion hole and third water conservancy diversion hole link to each other, along the flame direction of flow, 5 backs of draft tube are expanding structure, 5 fronts of draft tube are contraction structure between second grade fire prevention net 3 and tertiary fire prevention net 4, are expanding structure between one-level fire prevention net 2 and second grade fire prevention net 3, a plurality of round holes have all been seted up on the wire side to one-level fire prevention net 2, second grade fire prevention net 3 and tertiary fire prevention net 4, the round hole aperture on the one-level fire prevention net 2 is less than second grade fire prevention net 3 and tertiary fire prevention net 4, and the density of arranging is greater than second grade fire prevention net 3 and tertiary fire prevention net 4, the round hole that second grade fire prevention net 3 and tertiary fire prevention net 4 correspond the position adopts crisscross mode to arrange, the round hole has been seted up along circumference to 5 fronts of draft tube.
The tail end of the cover body 1 is provided with a plurality of open slots along the circumferential direction, an expandable and contractible structure is formed, and the cover body 1 is convenient and compact to assemble and easy to disassemble.
In the embodiment, three fire nets with different grades are connected through the conical guide cylinder 5, the guide cylinder 5 extends into the inner side of the cover body 1 for a certain length to guide flame to flow towards the inner side of the cover body 1 and prevent the flame from spraying out, and meanwhile, the front half part of the conical guide cylinder 5 is provided with a circular hole to further ensure that heat is diffused outwards.
The fire prevention net outside-in divides the tertiary arrangement, and one-level fire prevention net 2 adopts the great little trompil form of density of arranging, and the trompil that second grade fire prevention net 3 and tertiary fire prevention net 4 correspond the position adopts crisscross mode to arrange, and the trompil position of fire prevention net can guarantee with the form of arranging that the heat evenly gives off, plays the hindrance effect to spun flame simultaneously, changes the flow direction of flame, reaches the purpose of preventing flame spun.
The draft tube 5 penetrates through three kinds of fireproof nets with different grades in sequence and extends to the inner side of the cover body 1, the structure of the draft tube is similar to a vase shape, and the three-level fireproof net 4 forms an inverted U-shaped cavity, flame is guided to flow towards the inner side of the fireproof cover when sprayed out, the spraying of the flame is limited, the round holes are circumferentially formed in the first half part of the conical draft tube 5, and the structural design of the reducing diameter is added, so that the outward uniform diffusion of heat is further ensured.
The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention.
Claims (10)
1. The utility model provides a fuel air heater fire prevention cover which characterized in that: it includes the cover body (1), fire prevention net subassembly and draft tube (5), the fire prevention net subassembly sets up at the cover body (1) inner chamber, draft tube (5) run through the fire prevention net subassembly and extend to cover body (1) inboard, draft tube (5) and fire prevention net subassembly form the shape of falling U cavity at cover body (1) inboard.
2. The fire-proof cover for the fuel oil hot air blower according to claim 1, characterized in that: the fireproof net component comprises a plurality of fireproof nets which are arranged along the inner cavity of the cover body (1) at intervals from outside to inside in sequence.
3. The fire-proof cover for the fuel oil hot air blower according to claim 1, characterized in that: the fire prevention net subassembly includes one-level fire prevention net (2), second grade fire prevention net (3) and tertiary fire prevention net (4), the cover body (1) inner chamber outside-in installs one-level fire prevention net (2), second grade fire prevention net (3) and tertiary fire prevention net (4) in proper order, one-level fire prevention net (2), second grade fire prevention net (3) and tertiary fire prevention net (4) are run through in proper order in draft tube (5), draft tube (5) and tertiary fire prevention net (4) form the shape of falling U cavity in the cover body (1) inboard.
4. The fire-proof cover for the fuel oil hot air blower according to claim 3, characterized in that: the front part of the guide cylinder (5) is connected with the fireproof net component, and the rear part of the guide cylinder (5) extends towards the inner side of the cover body (1).
5. The fire-proof cover for the fuel oil hot air blower according to claim 4, wherein: first water conservancy diversion hole has been seted up at one-level fire prevention net (2) center, second water conservancy diversion hole has been seted up at second grade fire prevention net (3) center, third water conservancy diversion hole has been seted up at tertiary fire prevention net (4) center, first water conservancy diversion hole diameter is greater than second water conservancy diversion hole, third water conservancy diversion hole diameter is greater than first water conservancy diversion hole, draft tube (5) front portion links to each other with first water conservancy diversion hole, second water conservancy diversion hole and third water conservancy diversion hole respectively.
6. The fire-proof cover for the fuel oil hot air blower according to claim 5, wherein: along the flame flow direction, draft tube (5) rear portion is the expanded structure, draft tube (5) front portion is the contraction structure between second grade fire prevention net (3) and tertiary fire prevention net (4), is the expanded structure between one-level fire prevention net (2) and second grade fire prevention net (3).
7. The fire-proof cover for the fuel oil hot air blower according to claim 6, wherein: a plurality of round holes have all been seted up on the wire side in one-level fire prevention net (2), second grade fire prevention net (3) and tertiary fire prevention net (4), round hole aperture on one-level fire prevention net (2) is less than second grade fire prevention net (3) and tertiary fire prevention net (4), and density of arranging is greater than second grade fire prevention net (3) and tertiary fire prevention net (4).
8. The fire-proof cover for the fuel oil hot air blower according to claim 7, wherein: and round holes at corresponding positions of the second-level fireproof net (3) and the third-level fireproof net (4) are arranged in a staggered mode.
9. The fire protection cover for the fuel oil hot air blower according to claim 8, wherein: the front part of the guide shell (5) is provided with a round hole along the circumferential direction.
10. The fuel oil hot air blower fire-proof cover of claim 1 is characterized in that: the tail end of the cover body (1) is provided with a plurality of open grooves along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520707.XA CN114963567B (en) | 2022-05-13 | 2022-05-13 | Fire-proof cover for fuel oil air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520707.XA CN114963567B (en) | 2022-05-13 | 2022-05-13 | Fire-proof cover for fuel oil air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114963567A true CN114963567A (en) | 2022-08-30 |
| CN114963567B CN114963567B (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210520707.XA Active CN114963567B (en) | 2022-05-13 | 2022-05-13 | Fire-proof cover for fuel oil air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114963567B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149713A (en) * | 1988-11-30 | 1990-06-08 | Suzuki Motor Co Ltd | Muffler |
| CN201615493U (en) * | 2010-01-19 | 2010-10-27 | 中国石油化工股份有限公司 | Flameproof enclosure for chimney of vehicle-mounted boiler |
| CN108507342A (en) * | 2018-04-24 | 2018-09-07 | 台州市鸣机械股份有限公司 | Combustion heat-exchange equipment with flame screen |
| CN109157780A (en) * | 2018-07-18 | 2019-01-08 | 江苏大学 | A kind of buffering wall-flow type multi-pore channel fire arrester |
| CN208633903U (en) * | 2018-08-24 | 2019-03-22 | 山推工程机械股份有限公司 | A kind of bull-dozer fire-type exhaust tube |
| CN112618998A (en) * | 2020-12-29 | 2021-04-09 | 江苏复森特种阀门有限公司 | Pipe end type burning-resistant fire damper |
| CN112957638A (en) * | 2021-03-22 | 2021-06-15 | 江苏复森特种阀门有限公司 | Fire arrester with changeable structure |
| CN215351673U (en) * | 2021-07-16 | 2021-12-31 | 华泽工程技术(天津)有限公司 | Fire arrester |
-
2022
- 2022-05-13 CN CN202210520707.XA patent/CN114963567B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02149713A (en) * | 1988-11-30 | 1990-06-08 | Suzuki Motor Co Ltd | Muffler |
| CN201615493U (en) * | 2010-01-19 | 2010-10-27 | 中国石油化工股份有限公司 | Flameproof enclosure for chimney of vehicle-mounted boiler |
| CN108507342A (en) * | 2018-04-24 | 2018-09-07 | 台州市鸣机械股份有限公司 | Combustion heat-exchange equipment with flame screen |
| CN109157780A (en) * | 2018-07-18 | 2019-01-08 | 江苏大学 | A kind of buffering wall-flow type multi-pore channel fire arrester |
| CN208633903U (en) * | 2018-08-24 | 2019-03-22 | 山推工程机械股份有限公司 | A kind of bull-dozer fire-type exhaust tube |
| CN112618998A (en) * | 2020-12-29 | 2021-04-09 | 江苏复森特种阀门有限公司 | Pipe end type burning-resistant fire damper |
| CN112957638A (en) * | 2021-03-22 | 2021-06-15 | 江苏复森特种阀门有限公司 | Fire arrester with changeable structure |
| CN215351673U (en) * | 2021-07-16 | 2021-12-31 | 华泽工程技术(天津)有限公司 | Fire arrester |
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| Publication number | Publication date |
|---|---|
| CN114963567B (en) | 2023-11-28 |
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