CN108317720A - A kind of oil burning boiler - Google Patents

A kind of oil burning boiler Download PDF

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Publication number
CN108317720A
CN108317720A CN201810220583.7A CN201810220583A CN108317720A CN 108317720 A CN108317720 A CN 108317720A CN 201810220583 A CN201810220583 A CN 201810220583A CN 108317720 A CN108317720 A CN 108317720A
Authority
CN
China
Prior art keywords
flue
boiler
drum
burner hearth
oil burning
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.)
Pending
Application number
CN201810220583.7A
Other languages
Chinese (zh)
Inventor
赵凯东
张启山
罗继威
刘大平
代付军
王军
王飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Tuff Boiler Co Ltd
Original Assignee
Zhejiang Tuff Boiler Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Tuff Boiler Co Ltd filed Critical Zhejiang Tuff Boiler Co Ltd
Priority to CN201810220583.7A priority Critical patent/CN108317720A/en
Publication of CN108317720A publication Critical patent/CN108317720A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Abstract

The present invention relates to boiler plant technical fields, more particularly to a kind of oil burning boiler, including boiler body, burner hearth, the drum above the burner hearth, burner, the front end of the burner hearth is connected to the burner, and exhaust gases passes are formed between the rear end of the burner hearth and the boiler body;Smoke evacuation room is constituted between the rear wall of the drum and the boiler body;External flue, outside sandwich, middle flue, intraformational bed and inner flue is arranged in interval to the side wall of drum successively from outside to inside;The exhaust gases passes, external flue, first circulation channel, middle flue, second circulation channel and inner flue collectively form flue gas recirculation heating channel.Advantageous effect:Channel is heated by flue gas recirculation, so that the flue gas that burner hearth generates is recycled around entire drum, so that the heat that flue gas is brought is emitted again after being absorbed as far as possible, and flue gas recycles from inside to outside, makes internal quick heating, improves the efficiency of heating surface.

Description

A kind of oil burning boiler
Technical field
The present invention relates to boiler plant technical fields, and in particular to a kind of oil burning boiler.
Background technology
For a long time, always using coal as main energy sources, coal-burning boiler largely uses in China, and it is dirty to form coal smoke type air Dye, the haze weather especially occurred mostly in recent years further promote the energy policy in China and energy resource structure to make the transition as early as possible.
The usage amount of the coal-burning chemical industry boiler in China is huge, is the important pollution sources of China's haze weather, therefore I The big or middle city of some of state has been formulated in the recent period to be changed to fuel oil industry or life coal-burning boiler or fires the boiler policy of natural gas,
Not only can solve the conspicuous contradiction between boiler fired coal and environment, and country be laid with various oil into Under the background of mouth pipeline, more it is applicable in oil burning boiler and replaces existing coal-burning boiler.
Oil burning boiler refers to the boiler that fuel uses fuel oil, including diesel oil, the boiler of the oil plants such as waste oil.Oil burning boiler includes Fuel boiler, oil-fired water-boiler, fuel oil heating boiler, fuel oil bath boiler, oil-fired steam boiler etc., oil burning boiler tool There are economy, environmental protection etc. a little, and more easy to use than general gas fired-boiler.With the development of economy with social progress and people Raising to environmental consciousness, coal-burning boiler be gradually distance from the sight of people, it is novel environment friendly to replace due to seriously polluted Oil burning boiler.
Therefore, people pay much attention to improve oil burning boiler operational efficiency.A kind of existing oil burning boiler thermal recovery flue gas recirculation Technology can improve the thermal efficiency of oil burning boiler, for example, horizontal burner hearth disclosed in Chinese patent CN204555300U is arranged in pot Oil burning boiler outside cylinder, including burner, burner hearth, secondary furnace, pot copper, the flue being arranged in pot copper and contain water cooling The water system of wall pipe, it is characterised in that the burner is connected to the burner hearth front end being arranged on the outside of pot copper, the rear end of burner hearth It is connected with secondary furnace front end, secondary furnace rear end is connected with flue.Flue is by the first beam smoke pipe and the second beam cigarette Pipe forms, and is provided at both ends with front tube sheet, back tube sheet in pot copper, one end of the first beam smoke pipe and the second beam smoke pipe is fixed with front tube sheet Connection, the other end are fixedly connected with back tube sheet, and first beam smoke pipe one end is connected with secondary furnace rear end, the first beam smoke pipe other end With pot copper rear end setting rear smoke chamber be connected, rear smoke chamber is connected with the second beam smoke-box simultaneously, the second beam smoke pipe other end and The front smoke chamber in pot copper front end is arranged to be connected, front smoke chamber is connected with outlet flue.
However, above-mentioned flue gas recirculation tube bank is directly interspersed in pot copper, although the part heat that flue gas is brought can be absorbed Amount, but need to consider the volume size of pot copper itself, the quantity of flue gas recirculation tube bank cannot be excessive, otherwise can occupy in pot copper Volume reduces water yield.And the quantity for reducing flue gas recirculation tube bank then can cause heating rate slow.On the other hand, flue gas is quick When by being restrained in pot copper, heat, which has little time to be fully absorbed, to be just discharged, and thermal loss is caused.Therefore, how to make full use of Heat during flue gas recirculation does not influence boiler operating efficiency this problem and remains unsolved again.
Invention content
The purpose of the present invention is to solve the above problems, provide a kind of oil burning boiler.
In order to reach foregoing invention purpose, the present invention uses following technical scheme:
A kind of oil burning boiler, including boiler body, in the boiler body burner hearth of bottom side, be mounted on the stove The front end of drum above thorax, the burner on the boiler body, the burner hearth is connected to the burner, described Exhaust gases passes are formed between the rear end of burner hearth and the boiler body;Structure between the rear wall of the drum and the boiler body Smoke-box in a row;The side wall of the drum is multilayered structure, and external flue, middle cigarette is arranged in interval to the side wall of drum successively from outside to inside Road and inner flue form outside sandwich, inner clip are formed between the inner flue and middle flue between the external flue and middle flue Layer;It is equipped with first circulation channel between the external flue and middle flue, second circulation is equipped between the middle flue and inner flue Channel;The exhaust gases passes, external flue, first circulation channel, middle flue, second circulation channel and inner flue collectively form flue gas Circulating-heating channel;Spiral winding has heat-exchange tube, the both ends of heat-exchange tube to connect with the drum on the outer wall of the burner hearth It is logical;The outside sandwich and intraformational bed are run through in the both ends of the heat-exchange tube, and are passed through to the drum, the intraformational bed and outer Interlayer is connected to the heat-exchange tube.
Preferably, the external flue is equipped with exhanst gas outlet, and external flue passes through the exhanst gas outlet and smoke evacuation room phase It is logical.
Preferably, the boiler drum bottom is equipped with gas inlet, and the inner flue passes through gas inlet and the exhaust gases passes Connection.
Preferably, the drum arranged beneath has multiple water cooling tubes, one end of water cooling tube to be passed through in the drum, the other end It extends to outside the boiler body.
Preferably, the bottom of the boiler body is equipped with header tank, and the water cooling tube is connected to the header tank.
Preferably, the header tank is equipped with inlet valve.
Compared with prior art, the present invention advantageous effect is:Pass through exhaust gases passes, external flue, first circulation channel, middle cigarette Road, second circulation channel and inner flue collectively form flue gas recirculation heating channel, and the flue gas that burner hearth generates is made to surround entire drum Cycle, makes the heat that flue gas is brought be emitted again after being absorbed as far as possible, and flue gas recycles from inside to outside, makes internal heating Soon, the efficiency of heating surface is improved.The oil burning boiler of the present invention, volume is changeable, and relative to existing oil burning boiler, same volume The boiler of product size, the present invention has the higher efficiency of heating surface, and is not take up drum inner volume.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the flue gas recirculation figure of the present invention.
In figure:1 boiler body, 2 burner hearths, 3 drums, 4 burners, 5 exhaust gases passes, 6 smoke evacuation rooms, 7 heat-exchange tubes, 8 foreign cigarettes Road, flue in 9,10 inner flues, 11 outside sandwich, 12 intraformational beds, 13 first circulation channels, 14 second circulation channels, 15 flue gases go out Mouthful, 16 gas inlets, 17 water cooling tubes, 18 header tanks, 19 inlet valves.
Specific implementation mode
Explanation is further described to technical scheme of the present invention below by specific embodiment.
If without specified otherwise, the raw material employed in the embodiment of the present invention is raw material commonly used in the art, is implemented Method employed in example, is the conventional method of this field.
The present embodiment is as shown in Figure 1 and Figure 2:A kind of oil burning boiler, including boiler body 1, be mounted on the boiler body 1 The burner hearth 2 of interior bottom side, the drum 3 above the burner hearth 2, the burner 4 on the boiler body 1, it is described The front end of burner hearth 2 is connected to the burner 4, and exhaust gases passes 5 are formed between the rear end of the burner hearth 2 and the boiler body 1; Smoke evacuation room 6 is constituted between the rear wall of the drum 3 and the boiler body 1.The shell of the boiler body 1 have insulating layer and Flame retardant coating is laminating to be formed, and has good thermal insulation.
The side wall of the drum 3 is multilayered structure, and external flue 8, middle cigarette is arranged in interval to the side wall of drum 3 successively from outside to inside Road 9 and inner flue 10 form outside sandwich 11, between the inner flue 10 and middle flue 9 between the external flue 8 and middle flue 9 Form intraformational bed 12;First circulation channel 13, the middle flue 9 and inner flue 10 are equipped between the external flue 8 and middle flue 9 Between be equipped with second circulation channel 14;The exhaust gases passes 5, external flue 8, first circulation channel 13, middle flue 9, second circulation Channel 14 and inner flue 10 collectively form flue gas recirculation heating channel.The external flue 8 is equipped with exhanst gas outlet 15, external flue 8 It is communicated with the smoke evacuation room 6 by the exhanst gas outlet 15.3 bottom of the drum is equipped with gas inlet 16, the inner flue 10 It is connected to the exhaust gases passes 5 by gas inlet 16.
Spiral winding has a heat-exchange tube 7 on the outer wall of the burner hearth 2, spiral wound can increase heat-exchange tube 7 by The both ends of hot area, heat-exchange tube 7 are connected to the drum 3;11 He of the outside sandwich is run through at the both ends of the heat-exchange tube 7 Intraformational bed 12, and be passed through to the drum 3, the intraformational bed 12 and outside sandwich 11 are connected to the heat-exchange tube 7, in turn Water in water and heat-exchange tube and intraformational bed 12 in 3 inner cavity of drum and the circulation of 11 water phase of outside sandwich.
The operation principle in channel is heated in flue gas recirculation:In the flue gas emission to exhaust gases passes 5 that burner hearth 2 generates, via flue gas Import 16 enters 10 clockwise flow of inner flue, and inner flue 10 coats the inner cavity of the drum 3, and the flue gas just generated has most High temperature, the water in inner cavity absorb the heat of high-temperature flue gas release, can promote temperature rapidly at first.Flue gas is under hot-fluid drive Flue 9 enter in is flowed to behind second circulation channel 14 in inner flue 10, and flue gas surrounds drum 3 counterclockwise in middle flue 9 Flowing, and enter in external flue 8 after flowing to first circulation channel 13, and surround drum 3 clockwise and flow, it flows to flue gas and goes out After mouthfuls 15, into smoke evacuation room 6 after discharge.Flue gas is flowed by multiple circuits around drum 3, and heating surface area is not only increased, also Make the heat in flue gas that there is time enough to be absorbed, reduces the loss of heat.Flue gas is circulated around entire drum 3, Drum 3 is set to be heated evenly, it is not in the excessively high phenomenon of local temperature to make boiler internal.
3 arranged beneath of the drum has multiple water cooling tubes 17, one end of water cooling tube 17 to be passed through in the drum 3, the other end Extend to the boiler body 1.The bottom of the boiler body 1 is equipped with header tank 18, the water cooling tube 17 and the header tank 18 connections.The header tank 18 is equipped with inlet valve 19.Water cooling tube 17 can directly absorb the heat of the generation of burner hearth 2, pass through Inlet valve 19 enters heated hydraulic pressure in drum 3, and cooperation flue gas continues to heat, and improves heating efficiency.
Compared with prior art, the present invention advantageous effect is:By exhaust gases passes 5, external flue 8, first circulation channel 13, Middle flue 9, second circulation channel 14 and inner flue 10 collectively form flue gas recirculation heating channel, and the flue gas that burner hearth 2 generates is made to enclose It is recycled around entire drum 3, so that the heat that flue gas is brought is emitted again after being absorbed as far as possible, and flue gas follows from inside to outside Ring makes internal quick heating, improves the efficiency of heating surface.The oil burning boiler of the present invention, volume is changeable, and relative to existing combustion Thermo oil boiler, the boiler of same volume size, the present invention has the higher efficiency of heating surface, and is not take up 3 inner volume of drum.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the present invention..It is any All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in the power of the present invention Within the scope of profit is claimed.

Claims (6)

1. a kind of oil burning boiler, it is characterised in that:Stove including boiler body (1), mounted on the boiler body (1) interior bottom side Thorax (2), the drum (3) being mounted on above the burner hearth (2), the burner (4) being mounted on the boiler body (1), it is described The front end of burner hearth (2) is connected to the burner (4), and cigarette is formed between the rear end and the boiler body (1) of the burner hearth (2) Gas channel (5);Smoke evacuation room (6) is constituted between the rear wall and the boiler body (1) of the drum (3);
The side wall of the drum (3) is multilayered structure, the side wall of drum (3) from outside to inside successively interval setting external flue (8), in Flue (9) and inner flue (10) form outside sandwich (11), the inner flue between the external flue (8) and middle flue (9) (10) intraformational bed (12) is formed between middle flue (9);It is logical equipped with first circulation between the external flue (8) and middle flue (9) Road (13) is equipped with second circulation channel (14) between the middle flue (9) and inner flue (10);The exhaust gases passes (5), foreign cigarette Road (8), first circulation channel (13), middle flue (9), second circulation channel (14) and inner flue (10) collectively form flue gas recirculation Heat channel;
Spiral winding has a heat-exchange tube (7) on the outer wall of the burner hearth (2), the both ends of heat-exchange tube (7) with the drum (3) Connection;The outside sandwich (11) and intraformational bed (12) are run through in the both ends of the heat-exchange tube (7), and are passed through to the drum (3) Interior, the intraformational bed (12) and outside sandwich (11) are connected to the heat-exchange tube (7).
2. a kind of oil burning boiler according to claim 1, which is characterized in that the external flue (8) is equipped with exhanst gas outlet (15), external flue (8) is communicated by the exhanst gas outlet (15) with the smoke evacuation room (6).
3. a kind of oil burning boiler according to claim 1 or 2, which is characterized in that drum (3) bottom be equipped with flue gas into Mouth (16), the inner flue (10) are connected to by gas inlet (16) with the exhaust gases passes (5).
4. a kind of oil burning boiler according to claim 1 or 2, which is characterized in that drum (3) arranged beneath has multiple One end of water cooling tube (17), water cooling tube (17) is passed through in the drum (3), and the other end extends to the boiler body (1) outside.
5. a kind of oil burning boiler according to claim 4, which is characterized in that the bottom of the boiler body (1) is equipped with collection Water tank (18), the water cooling tube (17) are connected to the header tank (18).
6. a kind of oil burning boiler according to claim 5, which is characterized in that the header tank (18) is equipped with inlet valve (19)。
CN201810220583.7A 2018-03-16 2018-03-16 A kind of oil burning boiler Pending CN108317720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810220583.7A CN108317720A (en) 2018-03-16 2018-03-16 A kind of oil burning boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810220583.7A CN108317720A (en) 2018-03-16 2018-03-16 A kind of oil burning boiler

Publications (1)

Publication Number Publication Date
CN108317720A true CN108317720A (en) 2018-07-24

Family

ID=62899126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810220583.7A Pending CN108317720A (en) 2018-03-16 2018-03-16 A kind of oil burning boiler

Country Status (1)

Country Link
CN (1) CN108317720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111678129A (en) * 2020-05-22 2020-09-18 中国神华煤制油化工有限公司 Oil-fired boiler and coal-to-liquid and heavy oil blending oil-fired boiler system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111678129A (en) * 2020-05-22 2020-09-18 中国神华煤制油化工有限公司 Oil-fired boiler and coal-to-liquid and heavy oil blending oil-fired boiler system

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