CN205980282U - Boiler's backwater device - Google Patents
Boiler's backwater device Download PDFInfo
- Publication number
- CN205980282U CN205980282U CN201621010128.7U CN201621010128U CN205980282U CN 205980282 U CN205980282 U CN 205980282U CN 201621010128 U CN201621010128 U CN 201621010128U CN 205980282 U CN205980282 U CN 205980282U
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- Prior art keywords
- tube sheet
- water
- arc
- hot
- front tube
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Abstract
The utility model discloses a boiler's backwater device, include the furnace body that has outlet pipe and inlet tube, the inside heat exchange chamber who is provided with the burning chamber and locates burning chamber upper portion of furnace body is provided with the heat exchange tube in, and the front end and the front tube sheet in the chamber of burning of heat exchange tube are connected to with the chamber intercommunication that burns, burning chamber upper portion is hugged closely the front tube sheet and is provided with the arc -shaped passageway who sets up around the burning chamber, and arc -shaped passageway has first end and a second end relative with first end, and inlet tube and arc -shaped passageway's first end intercommunication, arc -shaped passageway are pressed close to front tube sheet one end and is opened towards the heat exchange tube direction and put convex delivery port. Adopt this kind of structure, the rivers that flow in arc -shaped passageway by the inlet tube by convex delivery port along the lateral wall sport of front tube sheet and go into, the low temperature rivers go into with the front tube sheet lateral wall on the splice is abundant can effectively reduce the temperature of front tube sheet with the contact, and then avoid heat exchange tube and front tube sheet splice influenced and the problem that ftractures by high temperature to extension boiler's life.
Description
Technical field
This utility model is related to a kind of hot-water boiler water recovery apparatus, belongs to boiler structure design field.
Background technology
Boiler is a kind of energy conversion, and into boiler, the energy of input has chemical energy in fuel, electric energy, and boiler is defeated
Go out to have steam, high-temperature water or the organic heat carrier of certain heat energy.The original meaning of pot is the water container of heating on fire, and stove refers to fire
The place of fuel burning, boiler then includes pot and stove two large divisions.In boiler, the hot water producing or steam can be directly commercial production
Heat energy needed for providing with people's lives, also can be converted to mechanical energy by Steam Power Equipment, or again by electromotor by machinery
Electric energy can be converted to.The boiler providing hot water is referred to as hot-water boiler, is mainly used in living, and also has a small amount of application in commercial production.
The boiler producing steam is steam boiler, is often simply called boiler, is used for thermal power station, ship, locomotive and industrial and mining establishment.
The structure of existing hot-water boiler is that the water inlet on body of heater and outlet are all disposed within greatly position placed in the middle on body of heater
Put, in the water cavity that water inlet is flowed in body of heater, the steam in body of heater is through heat exchanger tube release heat to water cavity for water at low temperature
Interior water is heated, and hot water flows out through outlet.The problem that this hot-water boiler exists, at front tube sheet, temperature is very high, and flows
The water at low temperature entering can not carry out effective temperature-reducing to front tube sheet, therefore, is easily caused the weld seam of heat exchanger tube and front tube sheet junction
Easily affected by high temperature and ftractureed, thus have impact on the service life of boiler.
Utility model content
In this regard, this utility model aims to provide a kind of water recovery apparatus of hot-water boiler rational in infrastructure, can be effective using it
The problem reducing front tube sheet temperature and then avoiding heat exchanger tube and front tube sheet weld to be affected by high temperature and ftracture, thus extend hot water
The service life of boiler.
The technical scheme realizing this utility model purpose is：
A kind of water recovery apparatus of hot-water boiler, including the body of heater with outlet pipe and water inlet pipe, described furnace interior setting
There are combustion chamber and the heat exchange chamber located at described combustion chamber top, be provided with heat exchanger tube in described heat exchange chamber, before heat exchanger tube
End is connected with the front tube sheet of described combustion chamber, and connects with described combustion chamber；Described combustion chamber top is close to described front tube sheet and is set
It is equipped with the curved channel around combustion chamber setting, described curved channel has first end and second end relative with first end, institute
The first end stating water inlet pipe with described curved channel connects, and described curved channel presses close to described front tube sheet one end towards described heat exchange
Pipe direction has set circular arc outlet.
In technique scheme, by described first end to the second end, the width of described circular arc outlet is gradually increased again
It is gradually reduced.
In technique scheme, described circular arc outlet is gradually increased, in width, the hierarchic structure being gradually reduced again.
In technique scheme, the position of the corresponding described curved channel of described combustion chamber caves inward formation annular recess,
In described annular recess, an arc coaming plate, the diapire of described annular recess, front side wall and rear wall and described arc are fixed in setting
Shape coaming plate encloses the described curved channel of formation, and described circular arc outlet is opened in described arc coaming plate near described front tube sheet
On one lateral edges.
In technique scheme, described front tube sheet is that the front side wall of described annular recess extends radially outward and formed.
In technique scheme, the front side wall of described annular recess and rear wall are respectively welded and are fixed with the first bonding jumper
With the second bonding jumper, the both sides of the edge of described arc coaming plate are fixed even with described first bonding jumper and described second bonding jumper respectively
Connect.
In technique scheme, lateral edges of described arc coaming plate with the described first overlap joint oblique cut grafting and are welded and fixed,
Fastened by fastening bolt after another lateral edges and the described second overlap joint oblique cut grafting.
In technique scheme, described water inlet pipe is the little tubular structure in the big the inner in outer end, has in the middle part of described water inlet pipe
The first rake being oppositely arranged and the second rake, described first rake is shifted to install with described second rake.
In technique scheme, described upper of furnace body is provided with manhole device, and is provided with manhole benefit at manhole device
Strong circle.
This utility model has positive effect：(1), in this utility model, described front tube sheet is close on described combustion chamber top
It is provided with the curved channel around combustion chamber setting, described curved channel has first end and second end relative with first end,
Described water inlet pipe is connected with the first end of described curved channel, and described curved channel is pressed close to described front tube sheet one end and changed towards described
Heat pipe direction has set circular arc outlet, using this structure, is gone out by circular arc by the current that water inlet pipe flows into curved channel
The mouth of a river enters along the side wall jet flow of front tube sheet, and water at low temperature is flowed into and fully can effectively be dropped with contacting with weld on the wall of front tube sheet side
The temperature of low front tube sheet, and then avoid the problem that heat exchanger tube and front tube sheet weld are affected by high temperature and ftracture, thus extending heat
The service life of homogeneous solution-type reactor.
Brief description
Fig. 1 is the partial view of the water recovery apparatus of hot-water boiler in this utility model；
Fig. 2 is the partial view at curved channel in this utility model；
Fig. 3 is the partial enlarged view at B in Fig. 2；
Fig. 4 is the sectional view in Fig. 1 along line A-A cutting；
Fig. 5 is front view during arc coaming plate flattening in this utility model；
Fig. 6 is the topology view of water inlet pipe in this utility model.
Shown in figure, reference is：1- water inlet pipe；11- first rake；12- second rake；2- body of heater；3- burns
Chamber；31- annular recess；311- diapire；312- front side wall；313- rear wall；4- heat exchange chamber；41- heat exchanger tube；5- front tube sheet；
6- curved channel；61- first end；62- second end；63- circular arc outlet；7- arc coaming plate；8- first bonding jumper；9- second
Bonding jumper；10- fastening bolt.
Specific embodiment
With reference to Figure of description, the concrete structure in this utility model is done with explanation：
A kind of water recovery apparatus of hot-water boiler, as shown in Figures 1 to 5, it includes the stove with outlet pipe and water inlet pipe 1
Body 2, described body of heater 2 is internally provided with combustion chamber 3 and the heat exchange chamber 4 located at described combustion chamber 3 top, described heat exchange chamber 4
Inside it is provided with heat exchanger tube 41, the front end of heat exchanger tube 41 is connected with the front tube sheet 5 of described combustion chamber 3, and with described combustion chamber 3 even
Logical；Described combustion chamber 3 top is close to described front tube sheet 5 and is provided with the curved channel 6 arranging around combustion chamber 3, and described arc leads to
Road 6 has first end 61 and second end 62 relative with first end 61, the first end of described water inlet pipe 1 and described curved channel 6
61 connections, described curved channel 6 is pressed close to described front tube sheet 5 one end and has been set circular arc outlet towards described heat exchanger tube 41 direction
63.Using said structure, circular arc outlet 63 is flowed through along the side wall spray of front tube sheet 5 by the water that water inlet pipe 1 flows into curved channel 6
Stream and enter, water at low temperature flow into abundant with weld on front tube sheet 5 side wall with contact the temperature that can effectively reduce front tube sheet 5, and then
Avoid the problem that heat exchanger tube 41 and front tube sheet 5 weld are affected by high temperature and ftracture, extend making of hot-water boiler so as to effective
Use the life-span.
Because in heat exchange chamber 4, heat exchanger tube 41 is in that fan-shaped array is distributed, therefore in order to ensure by circular arc outlet 63
The current that jet flow goes out can be fully contacted along the welding position of front tube sheet 41 side wall and all of heat exchanger tube 41 and front tube sheet 5,
Effectively reduce the temperature of front tube sheet 5, arrange therefore in the present embodiment：By described first end the 61 to the second end 62, described circular arc
The width of outlet 63 is gradually increased and is gradually reduced.
Further, described circular arc outlet 63 is gradually increased the hierarchic structure being gradually reduced again (referring to Fig. 5 institute in width
Show), be conducive to the fixation of following arc coaming plates 7 using this structure, be easy to the formation of curved channel 6.
In conjunction with shown in Fig. 2 and Fig. 3, in the present embodiment, the position of the corresponding described curved channel 6 of described combustion chamber 3 is inside
Concave shape circularizes recess 31, and an arc coaming plate 7, the diapire of described annular recess 31 are fixed in setting in described annular recess 31
311st, front side wall 312 and rear wall 313 enclose the described curved channel 6 of formation, described circular arc outlet with described arc coaming plate 7
63 are opened in described arc coaming plate 7 on lateral edges of described front tube sheet 5, and said structure simplifies rationally, and curved channel 6 is made
Make conveniently, low cost.
Further, described front tube sheet 5 extends radially outward and is formed for the front side wall of described annular recess 31, can guarantee that
Circular arc outlet 63 presses close to front tube sheet 5 enough.
In order to install described arc coaming plate 7, the front side wall 312 of the described annular recess 31 of the present embodiment and rear wall 313
On be respectively welded and be fixed with the first bonding jumper 8 and the second bonding jumper 9, the both sides of the edge of described arc coaming plate 7 are respectively with described
One bonding jumper 8 is fixedly connected with described second bonding jumper 9.
Further, lateral edges of described arc coaming plate 7 and described first bonding jumper 8 overlap and are welded and fixed, another
Lateral edges are fastened by fastening bolt 10 after being overlapped with described second bonding jumper 9, using this structure, are installing arc coaming plate 7
When, first the both sides of the edge of arc coaming plate 7 are ridden on described first bonding jumper 8 and the second bonding jumper 9, then pass through fastening bolt
Arc coaming plate 7 one lateral margin is fixed by 10, then another lateral edges are then tightly abutted against on described second bonding jumper 8, finally by weldering
Connecing (plug welding) can will be fixed for arc coaming plate 7.
As shown in fig. 6, the described water inlet pipe 1 in the present embodiment is the little tubular structure in the big the inner in outer end, described water inlet pipe 1
Middle part has the first rake 11 being oppositely arranged and the second rake 12, described first rake 11 and described second rake
12 shift to install, and are easy to the installation of water inlet pipe 1 using this structure.
Further, described body of heater 2 top is provided with manhole device, and welding setting manhole stiffening ring at manhole device,
To strengthen the intensity at manhole device.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate this utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need to give to all of embodiment
Exhaustive.And these belong to the obvious change that connotation of the present utility model extended out or change and still fall within this practicality
New protection domain.
Claims (9)
1. a kind of water recovery apparatus of hot-water boiler, including in the body of heater (2) with outlet pipe and water inlet pipe (1), described body of heater (2)
Portion is provided with combustion chamber (3) and the heat exchange chamber (4) located at described combustion chamber (3) top, is provided with described heat exchange chamber (4)
Heat exchanger tube (41), the front end of heat exchanger tube (41) is connected with the front tube sheet (5) of described combustion chamber (3), and with described combustion chamber (3) even
Logical；It is characterized in that：Described combustion chamber (3) top is close to described front tube sheet (5) and is provided with the arc arranging around combustion chamber (3)
Passage (6), described curved channel (6) has first end (61) and second end (62) relative with first end (61), described water inlet
Pipe (1) is connected with the first end (61) of described curved channel (6), and described curved channel (6) presses close to described front tube sheet (5) one end court
Set circular arc outlet (63) to described heat exchanger tube (41) direction.
2. the water recovery apparatus of hot-water boiler according to claim 1 is it is characterised in that by described first end (61) to second
End (62), the width of described circular arc outlet (63) is gradually increased and is gradually reduced.
3. the water recovery apparatus of hot-water boiler according to claim 2 is it is characterised in that described circular arc outlet (63) is in
Width is gradually increased the hierarchic structure being gradually reduced again.
4. the water recovery apparatus of hot-water boiler according to claim 1 is it is characterised in that described combustion chamber (3) is corresponding described
The position of curved channel (6) caves inward and forms annular recess (31), and an arc is fixed in setting in described annular recess (31)
Coaming plate (7), the diapire (311) of described annular recess (31), front side wall (312) and rear wall (313) and described arc coaming plate
(7) enclose the described curved channel of formation (6), described circular arc outlet (63) is opened in described arc coaming plate (7) near described
On one lateral edges of front tube sheet (5).
5. the water recovery apparatus of hot-water boiler according to claim 4 is it is characterised in that described front tube sheet (5) is described ring
The front side wall of shape recess (31) extends radially outward and is formed.
6. the water recovery apparatus of hot-water boiler according to claim 4 is it is characterised in that the front side of described annular recess (31)
It is respectively welded on wall (312) and rear wall (313) and be fixed with the first bonding jumper (8) and the second bonding jumper (9), described arc coaming plate
(7) both sides of the edge are fixedly connected with described first bonding jumper (8) and described second bonding jumper (9) respectively.
7. the water recovery apparatus of hot-water boiler according to claim 6 is it is characterised in that the side of described arc coaming plate (7)
Edge overlaps and is welded and fixed with described first bonding jumper (8), and another lateral edges are passed through after being overlapped with described second bonding jumper (9)
Fastening bolt (10) fastens.
8. the water recovery apparatus of hot-water boiler according to claim 1 is it is characterised in that described water inlet pipe (1) is that outer end is big
Inner little tubular structure, has the first rake (11) being oppositely arranged and the second rake in the middle part of described water inlet pipe (1)
(12), described first rake (11) and described second rake (12) shift to install.
9. the water recovery apparatus of hot-water boiler according to claim 1 is it is characterised in that described body of heater (2) top is provided with
Manhole device, and it is provided with manhole stiffening ring at manhole device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010128.7U CN205980282U (en) | 2016-08-30 | 2016-08-30 | Boiler's backwater device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010128.7U CN205980282U (en) | 2016-08-30 | 2016-08-30 | Boiler's backwater device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205980282U true CN205980282U (en) | 2017-02-22 |
Family
ID=58039115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621010128.7U Expired - Fee Related CN205980282U (en) | 2016-08-30 | 2016-08-30 | Boiler's backwater device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205980282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196587A (en) * | 2016-08-30 | 2016-12-07 | 浙江特富锅炉有限公司 | The water recovery apparatus of hot-water boiler |
-
2016
- 2016-08-30 CN CN201621010128.7U patent/CN205980282U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196587A (en) * | 2016-08-30 | 2016-12-07 | 浙江特富锅炉有限公司 | The water recovery apparatus of hot-water boiler |
| CN106196587B (en) * | 2016-08-30 | 2021-10-26 | 浙江特富发展股份有限公司 | Water return device of hot water boiler |
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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: 20170222 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |