CN206540118U - A kind of environment-friendly and energy-efficient CFBB bell-type windshield - Google Patents
A kind of environment-friendly and energy-efficient CFBB bell-type windshield Download PDFInfo
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- CN206540118U CN206540118U CN201720242983.9U CN201720242983U CN206540118U CN 206540118 U CN206540118 U CN 206540118U CN 201720242983 U CN201720242983 U CN 201720242983U CN 206540118 U CN206540118 U CN 206540118U
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- blast cap
- cap head
- cfbb
- bell
- staving
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Abstract
A kind of environment-friendly and energy-efficient CFBB bell-type windshield, belongs to boiler structure technical field.The problem of the utility model solves existing blast cap leakiness slag and blast cap head be difficult after blast cap seat serious wear, a blast cap abrasion cost caused by changing it is high, it is less economical the problem of.It includes blast cap head, protective case and blast cap seat, blast cap seat includes cylinder and supporting plate, supporting plate is sleeved on the top of cylinder, protective case includes staving and is fixed in the centring ring of staving openend outer, the upper portion side wall of staving uniformly offers some first through hole, the top of staving uniformly offers some second through holes, blast cap head and the equal spiral-lock of protective case are on the supporting plate, its Apoplexy cap head and supporting plate are affixed, protective case is located between blast cap head and blast cap seat, wherein the lateral wall of centring ring and top outer are in close contact with blast cap head inwall respectively, blast cap head, protective case and cylinder are coaxially disposed.The utility model is used for the air-distribution device of CFBB.
Description
Technical field
The utility model is related to a kind of CFBB blast cap, and in particular to a kind of environment-friendly and energy-efficient is ciculation fluidized
Bed boiler bell-type windshield, belongs to boiler structure technical field.
Background technology
In recent years, CFBB is used widely in generating, industrial production and central heating, and the feature of environmental protection
Can be to ensure the necessary condition that CFBB develops to high parameter, Large Copacity with energy-saving effect and stable operation.Circulation
In fluidized-bed combustion boiler, fluid bed is located at the bottom of burner hearth, and water cooled wind chamber is located at the lower section of stove fluid bed, and blast cap is recirculating fluidized bed
The important composition part of boiler air-distributing device, is arranged on burner hearth bottom water-cooled distributor, bottom connection water cooled wind chamber, First air
By blast cap even into burner hearth, fluidized bed material, its function is fluidized wind is uniformly sent into fluid bed, recirculating fluidized bed pot
With blast cap in the course of the work, due to being washed away by high temperature circulation material, not only easily occurring leakage slag phenomenon, (i.e. outside follows stove
Ring material is entered in blast cap by the air outlet on blast cap), outside blast cap and internal each part also serious wear, due in blast cap
Blast cap seat be firmly to be fixed on fluid bed, therefore change and be extremely difficult, also, the cooling of blast cap body is not enough, also can shadow
Ring its service life.
Utility model content
The problem of the utility model is to solve existing blast cap leakiness slag and blast cap head wear and tear tight with blast cap seat
Caused by being difficult to change after weight, blast cap abrasion cost it is high, it is less economical the problem of, and then there is provided a kind of circulation of environment-friendly and energy-efficient
Fluidized-bed combustion boiler bell-type windshield.
The utility model is to solve the technical scheme that is used of above-mentioned technical problem：
A kind of environment-friendly and energy-efficient CFBB bell-type windshield, it includes blast cap head, and the blast cap head is clock
Bell-type, the lower sides of blast cap head along its circumferencial direction be evenly equipped with some air outlets, blast cap head each air outlet by it is interior extremely
Outer incline is set,
It also includes protective case and blast cap seat, and the blast cap seat includes cylinder and supporting plate, and supporting plate is sleeved on cylinder
Top and fixed as one with the lateral wall of cylinder, the protective case includes staving and is fixed in the positioning of staving openend outer
Circle, the openend of staving is lower end, and the upper portion side wall of staving uniformly offers some first through hole, and the top of staving is uniformly opened up
There are some second through holes, on the supporting plate, its Apoplexy cap head and supporting plate are affixed for blast cap head and the equal spiral-lock of protective case, protective case position
Between blast cap head and blast cap seat, wherein the lateral wall of centring ring and top outer are in close contact with blast cap head inwall respectively,
Blast cap head, protective case and cylinder are coaxially disposed.
Further, the circumferencial direction of supporting plate is evenly equipped with some first locating pieces, and the bottom of blast cap head is along its circumference side
To being evenly equipped with some second locating pieces, some first locating pieces and some second locating pieces intersect cooperation, and the first locating piece with
Second positioning block welding.
Further, the air outlet is circular air outlet, and quantity is 12, the central axis and water of each air outlet
Angle square between is 10~12 degree.
Further, the longitudinal section of blast cap head outline is in convex shape structure, and its step surface is inclined-plane.
Further, the angle of inclination of the step surface and angle of inclination of air outlet is consistent sets.
Further, the top of staving is also connected with locating dowel, and locating dowel is coaxially disposed with staving, and the top of locating dowel
It is in close contact with blast cap head inwall.
Further, a diameter of 10~12mm of the locating dowel.
Further, the quantity of the first through hole is six, per the distance between adjacent two first through hole for 8~
10mm。
Further, the quantity of second through hole is three, a diameter of 8~10mm of each second through hole.
The utility model has the following effects that compared with prior art：
Protective case is set between blast cap head and blast cap seat, blast cap seat abrasion can be effectively prevented, in boiler operatiopn, in blast cap
Consumable accessory be only blast cap head, blast cap seat is the lifelong life-span, and blast cap head also need to be only changed during replacing；
The fluidized wind come out from cylinder passes through the scattered drainage of some first through hole on protective case, then is flowed out via air outlet
Blast cap, it is possible to achieve even distributing wind；
The top of protective case upper barrel body can effectively mitigate abrasion of the fluidized wind to blast cap overhead, while passing through some second
Through hole can realize cooling down certainly for blast cap head, effectively increase the service life of blast cap head；
The air outlet and protective case being obliquely installed can effectively prevent bed from entering blast cap, and anti-leak-stopping slag, cloth wind are equal
It is even；
Protective case is carried out complete spacing by blast cap head and blast cap seat, it is to avoid using being welded and fixed, be convenient for changing.
The utility model employs complete spacing, self cooled lower resistance, slag anti-leaking, wear-resistant bell-type windshield, it is ensured that
CFBB can low emission, low energy consumption and long-term safety stable operation, realize operation coal consumption reduction by more than 3%,
Power consumption more than 25% is saved, economic benefit and social benefit significantly, thoroughly solve CFBB to high parameter, great Rong
Measure the technical barrier of development.
Brief description of the drawings
Fig. 1 is schematic front view of the present utility model；
Fig. 2 for Fig. 1 A-A to schematic cross-sectional view；
Fig. 3 is Fig. 2 B-B direction schematic cross-sectional view；
Fig. 4 for Fig. 2 C-C to schematic cross-sectional view；
Fig. 5 is the main cross-sectional schematic diagram of blast cap head；
Fig. 6 is the elevational schematic view of blast cap head；
Fig. 7 is the schematic top plan view of blast cap head；
Fig. 8 is the main cross-sectional schematic diagram of protective case；
Fig. 9 for Fig. 8 F-F to schematic cross-sectional view；
Figure 10 for Fig. 8 G to schematic cross-sectional view；
Figure 11 is the main cross-sectional schematic diagram of blast cap seat；
Figure 12 for Figure 11 E-E to schematic cross-sectional view.
Embodiment
Embodiment one：Illustrate present embodiment, a kind of environment-friendly and energy-efficient recirculating fluidized bed pot with reference to Fig. 1~Figure 12
Stove bell-type windshield, it includes blast cap first 1, and the blast cap first 1 is bell-jar, and the lower sides of blast cap first 1 are along its circumference side
To be evenly equipped with some air outlet 1-1, blast cap first 1 each air outlet 1-1 by it is interior to outer incline set,
It also includes protective case 2 and blast cap seat 3, and the blast cap seat 3 includes cylinder 3-1 and supporting plate 3-2, supporting plate 3-2
It is sleeved on cylinder 3-1 top and is fixed as one with cylinder 3-1 lateral wall, the protective case 2 includes staving 2-1 and affixed
Centring ring 2-2 in staving 2-1 openends outer, staving 2-1 openend are lower end, and staving 2-1 upper portion side wall is uniformly opened
Provided with some first through hole 2-11, staving 2-1 top uniformly offers some second through hole 2-12, blast cap first 1 and protective case 2
Equal spiral-lock is on supporting plate 3-2, and its Apoplexy cap first 1 is affixed with supporting plate 3-2, protective case 2 be located at blast cap first 1 and blast cap 3 it
Between, wherein centring ring 2-2 lateral wall and top outer are in close contact with first 1 inwall of blast cap respectively, blast cap first 1, protective case 2
And cylinder 3-1 is coaxially disposed.
Supporting plate 3-2 is circular base slab, is coordinated between protective case 2 and blast cap seat 3 for gap.
Blast cap have it is complete it is spacing, from cooling, lower resistance, light abrasion, easily changeable feature.Protective case 2 has blast cap air intake
Power is uniform, realizes sunken bed pressure, the operation of sunken bed temperature, thoroughly solves the problems, such as that bed temperature is high, resistance is big, clinker, improves boiler environmentally friendly
Property, energy saving and stability.
Blast cap integrally using mazy complete spacing, self-cooling structure, thoroughly solves the problems, such as deslagging；Protective case 2 makes blast cap
First 1 abrasion mitigates significantly, realizes that cloth wind is uniform, resistance reduces；The setting of protective case 2 thoroughly avoids blast cap seat 3 and worn and torn, simultaneously
Realize complete spacing and cooling blast cap first 1；Connected between blast cap first 1 and supporting plate 3-2 for spot welding, facilitate blast cap first 1 and change, easily
It is only blast cap first 1 and protective case 2 to damage part, and blast cap seat 3 is the lifelong life-span；Blast cap is overall using high-temperature alloy material precision casting
Make, it is ensured that first 1 size of blast cap is consistent, resistance is small, wear-resistant, easy replacing.
The purpose of this utility model there is provided the environmental protection and energy saving CFBB low emission, low recombinated based on fluidised form
Energy consumption and sunken bed pressure, the principle and structure of the coordination technique of low abrasion stable operation.By determining optimal fast bed state, protect
Demonstrate,prove optimal amounts of fine particles；Determine optimal bubbling bed state, it is ensured that optimal coarse granule amount.By to core in boiler combustion system
The structure design of part blast cap, it is ensured that material reaches " matter " and " amount " of requirement.By to the improvement on cap structure, in environmental protection
Reached in performance：NOx raw emissions are less than 100mg/Nm3 during oepration at full load；When calcium to sulphur mole ratio is about 2.0, taken off in stove
Sulphur efficiency is more than 90%, it is achieved thereby that low emission, low cost in environmental protection.By determining that Design of State is theoretical, based on fluidised form weight
The core of group is fine granular materials circulation, improves bed material quality.Thinner recycle stock particle diameter be solve Wind cap for boiler abrasion and
The basic of efficiency of combustion is improved, the relatively thin bed of material is realized, relatively low bed pressure is run, not only anti-wear but also energy consumption saving wheel.
Sunken bed in stove is caused by complete spacing, self cooled lower resistance, slag anti-leaking, anti abrasive bell-type windshield structure
Temperature, sunken bed compression ignition burn, and realize denitration in the stove and stable burning, and its technique is easy, operating cost is low, realizes environment-friendly and energy-efficient and follows
Circulation fluidized bed boiler high reliability and low emission, the outstanding advantages of energy consumption saving wheel, represent CFBB product technology hair
The new direction of exhibition.Environmental protection and energy saving CFBB is applied to using complete spacing, self-cooling structure design bell-type windshield
On, its technological merit will be significantly improved, is that user brings bigger economic benefit.Pass through desulfuration in furnace and NOx general principles
Environmental-protecting performance is reached with correlation, denitration in the stove, desulfurization is realized.Boiler is set to reach energy-conservation effect by structure technology superiority
Really, by application of the core component in combustion system using complete spacing, self cooled bell-type windshield, realize that boiler fully fires
Burn, sunken bed pressure operation, operation coal consumption reduction by more than 3%, make boiler save power consumption more than 25%, year run time it is small up to 8000
When more than.There are preferable economic benefit and social benefit.
Embodiment two：Illustrate present embodiment with reference to Fig. 2,3,6,11,12, supporting plate 3-2 circumferencial direction is equal
Some first locating piece 3-21 are furnished with, the bottom of blast cap first 1 is evenly equipped with some second locating piece 1-2 along its circumferencial direction, some
First locating piece 3-21 and some second locating piece 1-2 intersect cooperation, and the first locating piece 3-21 and the second locating piece 1-2 is welded
Connect.It is so designed that, blast cap first 1 is that spot welding is connected with supporting plate 3-2, is easy to the replacement operation of blast cap first 1.Other compositions are with being connected
Relation is identical with embodiment one.
Embodiment three：Illustrate present embodiment with reference to Fig. 1,2,4,5, the air outlet 1-1 is circular air outlet,
Quantity is 12, and the angle between each air outlet 1-1 central axis and horizontal direction is 10~12 degree.It is so designed that,
The angle is preferably 10 degree, and blast cap air-out can be made uniform, the need for meeting different air outputs, and the air outlet being obliquely installed
1-1 can effectively prevent bed from entering blast cap, anti-leak-stopping slag.Other compositions and annexation and embodiment one or two
It is identical.
Embodiment four：Illustrate present embodiment with reference to Fig. 1,2,4,5, the longitudinal section of first 1 outline of blast cap is in convex
Character form structure, its step surface is inclined-plane.It is so designed that, the first 1 bottom wall thickness of blast cap is big compared with top wall thickness, it is possible to increase blast cap first 1
Intensity, extends its service life, and step surface can reduce resistance in inclined-plane.Other compositions and annexation and embodiment
Three is identical.
Embodiment five：Illustrate present embodiment, the angle of inclination of the step surface and air-out with reference to Fig. 1 and Fig. 5
Mouth 1-1 angle of inclination is unanimously set.It is so designed that, it is to avoid caused abrasion, cloth wind are mutually blown between blast cap more reasonable.Other groups
Into identical with embodiment four with annexation.
Embodiment six：Illustrate present embodiment with reference to Fig. 2, Fig. 8 and Figure 10, staving 2-1 top is also connected with
Locating dowel 2-3, locating dowel 2-3 is coaxially disposed with staving 2-1, and locating dowel 2-3 top is in close contact with first 1 inwall of blast cap.
It is so designed that, protective case 2 is carried out further spacing.Other compositions and annexation and embodiment one, two, four or five
It is identical.
Embodiment seven：Illustrate present embodiment with reference to Fig. 2, Fig. 8 and Figure 10, the locating dowel 2-3's is a diameter of
10~12mm.It is so designed that, the diameter of locating dowel is preferably 12mm, can fix protective case, without using welding
Structure, is convenient for changing.Other compositions are identical with embodiment six with annexation.
Embodiment eight：Illustrate present embodiment with reference to Fig. 2,8,9, the quantity of the first through hole 2-11 is six
Individual, the distance between every adjacent two first through hole 2-11 are 8~10mm.It is so designed that, between adjacent two first through hole
Distance preferably 8mm, can reduce resistance and Uniform Ventilation.Other compositions and annexation and embodiment one, two, four,
Five or seven is identical.
Embodiment nine：Illustrate present embodiment with reference to Fig. 2,8,10, the quantity of the second through hole 2-12 is three
It is individual, each second through hole 2-12 a diameter of 8~10mm.It is so designed that, the diameter of the second through hole is preferably 8mm, can make guarantor
Sheath 2 reaches cooling down certainly for blast cap first 1 on the premise of reaching that reducing blast cap first 1 weares and teares by the second through hole 2-12.Other groups
Into identical with embodiment eight with annexation.
Claims (9)
1. a kind of environment-friendly and energy-efficient CFBB bell-type windshield, it includes blast cap head (1), the blast cap head (1)
For bell-jar, the lower sides of blast cap head (1) are evenly equipped with some air outlets (1-1), blast cap head (1) each along its circumferencial direction
Air outlet (1-1) is by interior to outer incline setting, it is characterised in that：It also includes protective case (2) and blast cap seat (3), the wind
Cap seat (3) include cylinder (3-1) and supporting plate (3-2), supporting plate (3-2) be sleeved on the top of cylinder (3-1) and with cylinder (3-
1) lateral wall fixes as one, and the protective case (2) includes staving (2-1) and is fixed in staving (2-1) openend outer
Centring ring (2-2), the openend of staving (2-1) is lower end, and the upper portion side wall of staving (2-1) uniformly offers some first through hole
(2-11), the top of staving (2-1) uniformly offers some second through holes (2-12), blast cap head (1) and protective case (2) spiral-lock
In supporting plate (3-2), its Apoplexy cap head (1) and supporting plate (3-2) are affixed, and protective case (2) is located at blast cap head (1) and blast cap seat
(3) between, wherein the lateral wall of centring ring (2-2) and top outer are in close contact with blast cap head (1) inwall respectively, blast cap head
(1), protective case (2) and cylinder (3-1) are coaxially disposed.
2. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 1, it is characterised in that：
The circumferencial direction of supporting plate (3-2) is evenly equipped with some first locating pieces (3-21), and the bottom of blast cap head (1) is equal along its circumferencial direction
Some second locating pieces (1-2) are furnished with, some first locating pieces (3-21) intersect cooperation with some second locating pieces (1-2), and
First locating piece (3-21) is welded with the second locating piece (1-2).
3. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 1 or 2, its feature exists
In：The air outlet (1-1) is circular air outlet, and quantity is 12, central axis and the level side of each air outlet (1-1)
Angle between is 10~12 degree.
4. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 3, it is characterised in that：
The longitudinal section of blast cap head (1) outline is in convex shape structure, and its step surface is inclined-plane.
5. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 4, it is characterised in that：
The angle of inclination of the step surface is consistent with the angle of inclination of air outlet (1-1) to be set.
6. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 1,2,4 or 5, it is special
Levy and be：The top of staving (2-1) is also connected with locating dowel (2-3), and locating dowel (2-3) is coaxially disposed with staving (2-1), and fixed
The top of position post (2-3) is in close contact with blast cap head (1) inwall.
7. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 6, it is characterised in that：
A diameter of 10~12mm of the locating dowel (2-3).
8. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 1,2,4,5 or 7, its
It is characterised by：The quantity of the first through hole (2-11) is six, and the distance between every adjacent two first through hole (2-11) are 8
~10mm.
9. a kind of environment-friendly and energy-efficient CFBB bell-type windshield according to claim 8, it is characterised in that：
The quantity of second through hole (2-12) is three, a diameter of 8~10mm of each second through hole (2-12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242983.9U CN206540118U (en) | 2017-03-13 | 2017-03-13 | A kind of environment-friendly and energy-efficient CFBB bell-type windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720242983.9U CN206540118U (en) | 2017-03-13 | 2017-03-13 | A kind of environment-friendly and energy-efficient CFBB bell-type windshield |
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| Publication Number | Publication Date |
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| CN206540118U true CN206540118U (en) | 2017-10-03 |
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ID=59941958
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720242983.9U Active CN206540118U (en) | 2017-03-13 | 2017-03-13 | A kind of environment-friendly and energy-efficient CFBB bell-type windshield |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678786A (en) * | 2017-03-13 | 2017-05-17 | 哈尔滨红光锅炉总厂有限责任公司 | Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler |
| CN113464954A (en) * | 2021-07-28 | 2021-10-01 | 上海麦雀斯环境工程技术有限公司 | Water-cooling wind cap |
-
2017
- 2017-03-13 CN CN201720242983.9U patent/CN206540118U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678786A (en) * | 2017-03-13 | 2017-05-17 | 哈尔滨红光锅炉总厂有限责任公司 | Bell jar type wind cap for environment-friendly energy-saving circulating fluidized bed boiler |
| CN113464954A (en) * | 2021-07-28 | 2021-10-01 | 上海麦雀斯环境工程技术有限公司 | Water-cooling wind cap |
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