CN204062977U - A kind of shell boiler - Google Patents
A kind of shell boiler Download PDFInfo
- Publication number
- CN204062977U CN204062977U CN201420460686.8U CN201420460686U CN204062977U CN 204062977 U CN204062977 U CN 204062977U CN 201420460686 U CN201420460686 U CN 201420460686U CN 204062977 U CN204062977 U CN 204062977U
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- combustion chamber
- shell
- straight sections
- cylindrical shell
- flue
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Abstract
The utility model provides a kind of shell boiler, belongs to boiler technology field.It solve the problem that the return pipe of existing shell boiler is not high to return combustion chamber front tube sheet scouring intensity.This shell boiler, comprise base, base is provided with in airtight and tubular body, the flue in corrugated tube shape is provided with in the cavity of body, the front end of flue is back combustion chamber cylindrical shell and returns combustion chamber cylindrical shell to be connected with flue, be provided with return pipe in the cavity of body, return pipe comprises straight sections and is inclined to set with straight sections and the inclined tube portion be connected, and inclined tube portion is positioned at the downside of straight sections and the sidewall of the outlet in inclined tube portion and time combustion chamber cylindrical shell faces.This shell boiler has the advantage higher to return combustion chamber front tube sheet scouring intensity.
Description
Technical field
The utility model belongs to boiler technology field, relates to a kind of shell boiler.
Background technology
Shell boiler is also known as multitubular boiler.Basic structure is in large cylinder (shell), install the housing (appellation " flue ") of roundlet cylinder, pipe (appellation " fire tube ") or other shapes, fire tube and large cylinder completely cut off and form chuck, water is held in chuck, and fire tube and flue use combustion chamber and flue as, hold flame or flue gas, the heat that burning produces or flue gas brings passes to water through fire tube wall.Advantage is that water capacity is large, and heat storage capacity is large, and structure, installation and operation are all fairly simple.Shortcoming is that evaporation intensity is not high, and the steam pressure of generation is low, and shell and internals are directly heated, condition of work be deteriorated, shell intensity because of various perforate weakened, condition of work be deteriorated, shell intensity because of various perforate weakened, because water storage and the amount of saving up strength are large, once destroy release energy large.
A kind of gas fired-boiler openly proposed as Chinese patent literature data and thermocirculator [application number: 200720023046.O; Authorization Notice No.: CN 201047660Y], be included in the entery and delivery port on boiler body, the burner of boiler body front end, condensing heat exchanger is arranged in the smoke box of boiler body rear end, and circulates with the boiler outside body of heater and be connected; The water pipe being communicated with boiler body entery and delivery port is also connected by boiler Inner eycle.The delivery port of condensing heat exchanger connects boiler by water pipe, and one end of condensate water circulatory pump connects boiler, and the other end connects the water inlet of condensing heat exchanger, and the water pipe connecting boiler body entery and delivery port is coiled in boiler.But the return pipe in this boiler is not due to just on the lateral wall of smoke box, therefore more weak to the front tube sheet scouring intensity of smoke box, makes thermal cycle not carry out fully.
A kind of Water cooling wall pipe driving jet circulation boiler { application number: 03213893.8 disclosed in Chinese patent literature; Authorization Notice No.: CN 2639719Y}, there is drum, lower header, the backwater distributing pipe be communicated with boiler blow-down water pipe is provided with in drum, backwater distributing pipe is provided with the ejection mouth of a river in a row, the water inlet one_to_one corresponding of each water jet and descending water cold wall pipe, the delivery port of descending water cold wall pipe is connected to lower header, ascending water cold wall pipe one end is connected with descending water cold wall pipe by lower header, other end access drum.But the delivery port of backwater distributing pipe is vertical setting, therefore its effect being mapped to cold wall pipe is poor.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of shell boiler stronger to return combustion chamber front tube sheet scouring intensity.
The purpose of this utility model realizes by following technical proposal: a kind of shell boiler, comprise base, described base is provided with in airtight and tubular body, the flue in corrugated tube shape is provided with in the cavity of described body, the front end of described flue is back combustion chamber cylindrical shell and the described combustion chamber cylindrical shell that returns is connected with described flue, it is characterized in that, return pipe is provided with in the cavity of described body, described return pipe comprises straight sections and is inclined to set with straight sections and the inclined tube portion be connected, described inclined tube portion is positioned at the downside of described straight sections and the outlet in described inclined tube portion and the described sidewall returning combustion chamber cylindrical shell face.
Realized the burning of fuel by the flue in the cavity of body, in the cavity that heat is delivered to body by the burning of fuel, carry out heat exchange.Owing to return pipe to be arranged to straight sections and inclined tube portion, and the outlet in inclined tube portion faces with the sidewall returning combustion chamber cylindrical shell, is therefore conducive to the change in water return flow direction and increases return combustion chamber front tube sheet scouring intensity.
In above-mentioned a kind of shell boiler, the side of the lower end of described straight sections is fixed with connecting plate in tabular and the axis of described connecting plate and described straight sections is vertical setting, and described connecting plate is connected mutually with the described combustion chamber cylindrical shell that returns.Making straight sections be convenient to be connected mutually with time combustion chamber cylindrical shell by arranging connecting plate, the heat of return pipe better can be delivered to back on the cylindrical shell of combustion chamber simultaneously.
In above-mentioned a kind of shell boiler, the upper end of described straight sections is fixed with adpting flange, the end face of described adpting flange is vertically provided with the adjustment hole run through, and described adjustment hole in the form of a ring.By arranging adpting flange, the attaching parts of the outer end and peripheral hardware of being convenient to return pipe are connected, and upon connection, by screw through adjustment hole, are convenient to the adjustment of the position to attaching parts.
In above-mentioned a kind of shell boiler, described connecting plate adopts to weld with described straight sections and is connected mutually.Connecting plate adopts to weld with straight sections and is connected mutually, have connection comparatively for convenience of and firmly advantage.
In above-mentioned a kind of shell boiler, the described combustion chamber cylindrical shell that returns comprises back combustion chamber front tube sheet and returns combustion chamber back tube sheet, and the described combustion chamber front tube sheet that returns comprises corrosion resistant plate and is cast in the concrete layer outside described corrosion resistant plate.Corrosion resistant plate, while the weight supporting concrete layer, has effectively completely cut off inlet flue gas washing away and heat convection smoke pipe, has significantly reduced the thermic load of flue end.
In above-mentioned a kind of shell boiler, the tapered and diameter of its outer end in one end of described flue is less than the diameter inside it.
In above-mentioned a kind of shell boiler, the described rear end returning combustion chamber cylindrical shell is provided with tubular inspection portion, described inspection portion and the described cavity returning combustion chamber cylindrical shell are connected, and axis and the described axis of returning combustion chamber cylindrical shell of described inspection portion be arranged in parallel.By arranging inspection portion, the inside cavity be convenient to returning combustion chamber cylindrical shell is observed, and has and uses conveniently advantage.
Compared with prior art, this shell boiler has the following advantages:
1, owing to return pipe to be arranged to straight sections and inclined tube portion, and the outlet in inclined tube portion faces with the sidewall returning combustion chamber cylindrical shell, is therefore conducive to the change in water return flow direction and increases return combustion chamber front tube sheet scouring intensity;
2, making straight sections be convenient to be connected mutually with time combustion chamber cylindrical shell by arranging connecting plate, can the heat of return pipe is better delivered to back on the cylindrical shell of combustion chamber simultaneously;
3, by arranging adpting flange, the attaching parts of the outer end and peripheral hardware of being convenient to return pipe are connected, and upon connection, by screw through adjustment hole, are convenient to the adjustment of the position to attaching parts;
4, corrosion resistant plate is while the weight supporting concrete layer, has effectively completely cut off inlet flue gas washing away and heat convection smoke pipe, has significantly reduced the thermic load of flue end.
Accompanying drawing explanation
Fig. 1 is the schematic front view of this shell boiler.
Fig. 2 is the schematic top plan view of this shell boiler.
Fig. 3 is the return pipe schematic front view of this shell boiler.
Fig. 4 is the return pipe schematic top plan view of this shell boiler.
In figure, 1, base; 2, body; 3, flue; 4, combustion chamber cylindrical shell is returned; Pipe before 4a, time combustion chamber; 5, return pipe; 5a, straight sections; 5b, inclined tube portion; 6, connecting plate; 7, adpting flange; 7a, adjustment hole; 8, inspection portion.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figures 1 to 4, a kind of shell boiler, comprise base 1, base 1 is provided with in airtight and tubular body 2, the flue 3 in corrugated tube shape is provided with in the cavity of body 2, the front end of flue 3 is back combustion chamber cylindrical shell 4, return combustion chamber cylindrical shell 4 to be connected with flue 3, return pipe 5 is provided with in the cavity of body 2, return pipe 5 comprises straight sections 5a and to be inclined to set with straight sections 5a and the inclined tube portion 5b be connected, inclined tube portion 5b are positioned at the downside of straight sections 5a and the outlet of inclined tube portion 5b faces with the sidewall returning combustion chamber cylindrical shell 4.
The side of the lower end of straight sections 5a adopts the connecting plate 6 welding and be fixed with in tabular, connecting plate 6 is vertical setting with the axis of straight sections 5a, connecting plate 6 is connected mutually with time combustion chamber cylindrical shell 4, making straight sections 5a be convenient to be connected mutually with time combustion chamber cylindrical shell 4 by arranging connecting plate 6, the heat of return pipe 5 better can be delivered to back on combustion chamber cylindrical shell 4 simultaneously.The upper end of straight sections 5a is fixed with adpting flange 7, and the end face of adpting flange 7 is vertically provided with the adjustment hole 7a run through, adjustment hole 7a in the form of a ring.By arranging adpting flange 7, the attaching parts of the outer end and peripheral hardware of being convenient to return pipe 5 are connected, and upon connection, by screw through adjustment hole 7a, are convenient to the adjustment of the position to attaching parts.
Return combustion chamber cylindrical shell 4 and comprise back pipe 4a plate and time combustion chamber back tube sheet before combustion chamber, before going back to combustion chamber, pipe 4a plate comprises corrosion resistant plate and is cast in the concrete layer outside described corrosion resistant plate.Corrosion resistant plate, while the weight supporting concrete layer, has effectively completely cut off inlet flue gas washing away and heat convection smoke pipe, has significantly reduced the thermic load of flue end.
Realized the burning of fuel by the flue 3 in the cavity of body 2, in the cavity that heat is delivered to body 2 by the burning of fuel, carry out heat exchange.Owing to return pipe 5 to be arranged to straight sections 5a and inclined tube portion 5b, and the outlet of inclined tube portion 5b faces with the sidewall returning combustion chamber cylindrical shell 4, is therefore conducive to the change in water return flow direction and increases return combustion chamber front tube sheet scouring intensity.By arranging inspection portion 8, the inside cavity be convenient to returning combustion chamber cylindrical shell 4 is observed, and has and uses conveniently advantage.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ base 1, body 2, flue 3 herein, return combustion chamber cylindrical shell 4, to return before combustion chamber the terms such as pipe 4a, return pipe 5, straight sections 5a, inclined tube portion 5b, connecting plate 6, adpting flange 7, adjustment hole 7a, inspection portion 8, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. a shell boiler, comprise base (1), described base (1) is provided with in airtight and tubular body (2), the flue (3) in corrugated tube shape is provided with in the cavity of described body (2), the front end of described flue (3) is back combustion chamber cylindrical shell (4) and the described combustion chamber cylindrical shell (4) that returns is connected with described flue (3), it is characterized in that, return pipe (5) is provided with in the cavity of described body (2), described return pipe (5) comprises straight sections (5a) and is inclined to set with straight sections (5a) and the inclined tube portion (5b) be connected, described inclined tube portion (5b) is positioned at the downside of described straight sections (5a) and the outlet in described inclined tube portion (5b) and the described sidewall returning combustion chamber cylindrical shell (4) face.
2. a kind of shell boiler according to claim 1, it is characterized in that, the side of the lower end of described straight sections (5a) is fixed with connecting plate (6) in tabular and described connecting plate (6) is vertical setting with the axis of described straight sections (5a), and described connecting plate (6) is connected mutually with described time combustion chamber cylindrical shell (4).
3. a kind of shell boiler according to claim 1 and 2, it is characterized in that, the upper end of described straight sections (5a) is fixed with adpting flange (7), the end face of described adpting flange (7) is vertically provided with the adjustment hole (7a) run through, described adjustment hole (7a) in the form of a ring.
4. a kind of shell boiler according to claim 1 and 2, is characterized in that, described connecting plate (6) adopts to weld with described straight sections (5a) and is connected mutually.
5. a kind of shell boiler according to claim 1 and 2, it is characterized in that, the described combustion chamber cylindrical shell (4) that returns comprises back pipe (4a) plate and time combustion chamber back tube sheet before combustion chamber, and before described time combustion chamber, pipe (4a) plate comprises corrosion resistant plate and is cast in the concrete layer outside described corrosion resistant plate.
6. a kind of shell boiler according to claim 1 and 2, is characterized in that, the tapered and diameter of its outer end in one end of described flue (3) is less than the diameter inside it.
7. a kind of shell boiler according to claim 1 and 2, it is characterized in that, the described rear end returning combustion chamber cylindrical shell (4) is provided with tubular inspection portion (8), described inspection portion (8) and the described cavity phase of returning combustion chamber cylindrical shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460686.8U CN204062977U (en) | 2014-08-14 | 2014-08-14 | A kind of shell boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460686.8U CN204062977U (en) | 2014-08-14 | 2014-08-14 | A kind of shell boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062977U true CN204062977U (en) | 2014-12-31 |
Family
ID=52204484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460686.8U Expired - Fee Related CN204062977U (en) | 2014-08-14 | 2014-08-14 | A kind of shell boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844053A (en) * | 2018-05-18 | 2018-11-20 | 河南科技大学 | A kind of fire tube waste heat boiler being able to ascend utilization rate of waste heat |
-
2014
- 2014-08-14 CN CN201420460686.8U patent/CN204062977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844053A (en) * | 2018-05-18 | 2018-11-20 | 河南科技大学 | A kind of fire tube waste heat boiler being able to ascend utilization rate of waste heat |
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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 |
Granted publication date: 20141231 Termination date: 20190814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |