CN214791081U - Burning loss prevention monitoring device for boiler nozzle - Google Patents
Burning loss prevention monitoring device for boiler nozzle Download PDFInfo
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- CN214791081U CN214791081U CN202120821578.9U CN202120821578U CN214791081U CN 214791081 U CN214791081 U CN 214791081U CN 202120821578 U CN202120821578 U CN 202120821578U CN 214791081 U CN214791081 U CN 214791081U
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- wind
- primary air
- air duct
- compensation
- channel
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 9
- 230000002265 prevention Effects 0.000 title claims description 7
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims 3
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000003245 coal Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a boiler nozzle prevents burning loss monitoring devices, include: the cyclone is fixedly arranged in the primary air duct, and one end of the primary air duct is fixedly connected with a first air inlet pipe; the compensation air duct is sleeved outside the primary air duct and located between the cyclone and the first air inlet pipe, the outer wall of the compensation air duct is fixedly connected with the outer wall of the primary air duct, the top end and the bottom end of the compensation air duct are fixedly connected with the second air inlet pipe, a communication hole is formed between the compensation air duct and the primary air duct, an air cap is installed in the communication hole, and the air cap can move towards or keep away from the inner side of the primary air duct according to the pressure change in the primary air duct so as to adjust the air volume entering the primary air duct from the compensation air duct.
Description
Technical Field
The utility model relates to a pulverized coal burner technical field specifically is a boiler nozzle prevents burning loss monitoring devices.
Background
The pulverized coal burner can generate high-temperature vortex for pulverized coal in a short time, has the advantages of complete combustion, high heat utilization rate, smoke prevention and dust control, high efficiency, energy conservation, improvement of working conditions, reduction of labor intensity and the like, and is an ideal energy-saving and environment-friendly product.
At present, the existing pulverized coal burner has the problem that the nozzle is back-fire and burnt due to the fact that the constant pressure cannot be guaranteed by the air pressure of a primary air channel during use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a boiler nozzle prevents scaling loss monitoring devices has solved current pulverized coal burner, appears the wind pressure easily and is not enough to lead to the problem that the nozzle scaling loss appears.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a boiler nozzle burnout prevention monitoring device, comprising:
the cyclone is fixedly arranged in the primary air duct, and one end of the primary air duct is fixedly connected with a first air inlet pipe;
the compensation air duct is sleeved outside the primary air duct and located between the cyclone and the first air inlet pipe, the outer wall of the compensation air duct is fixedly connected with the outer wall of the primary air duct, the top end and the bottom end of the compensation air duct are fixedly connected with the second air inlet pipe, a communication hole is formed between the compensation air duct and the primary air duct, an air cap is installed in the communication hole, and the air cap can move towards or keep away from the inner side of the primary air duct according to the pressure change in the primary air duct so as to adjust the air volume entering the primary air duct from the compensation air duct.
Optionally, first air-supply line is hourglass hopper-shaped, first air-supply line is to keeping away from the one end in primary air duct and be the enlarged structure.
Optionally, the hood is including adjusting the section to and be fixed in first stopper, the second stopper of adjusting the section both ends respectively, adjust the section cross section for the rectangle, be equipped with the venthole that communicates the chamber on intercommunication chamber and the lateral wall that communicates with the compensation wind channel intercommunication along the axial, intercommunicating pore cross section size and regulation section cross section phase-match, first stopper, second stopper cross section all are greater than the connecting hole cross section, first stopper sets up in the compensation wind channel, the second stopper sets up in a wind channel, the venthole is for the waist hole along adjusting section axial setting.
Optionally, a wind collecting cover is arranged in the primary air duct, the wind collecting cover is fixedly connected to the inner wall of the primary air duct in an annular shape, the connecting hole cover is arranged in the wind collecting cover, and an air outlet hole is formed in the wall of the wind collecting cover and faces the air outlet direction of the primary air duct.
Optionally, a compression spring is arranged between the first limiting block and the air collecting cover, a first limiting column is fixedly connected to the first limiting block, a second limiting column is fixedly connected to the inner wall of the air collecting cover, and two ends of the spring are respectively sleeved on the first limiting column and the second limiting column.
(III) advantageous effects
The utility model provides a burning loss monitoring devices is prevented to boiler nozzle possesses following beneficial effect:
(1) when the wind pressure is low in the primary air channel through the compensation air channel, the compensation air pressure passes through the air cap after passing through the compensation air channel and enters the primary air channel to perform air pressure compensation, the air pressure in the primary air channel is guaranteed to reach the pulverized coal and can be effectively combusted after being sprayed out of the primary air channel, the compensation air channel is arranged between the first air inlet pipe and the swirler, and the compensation air channel can be guaranteed to be fully fused with the pulverized coal.
(2) The air inlet pipe is arranged to be funnel-shaped, the first air inlet pipe is of an expansion structure towards one end far away from the primary air duct, and air pressure in the first air inlet pipe can be gathered and pressurized.
(3) The adjusting position of the hood can be effectively limited by arranging the hood into the adjusting section and respectively fixing the first limiting block and the second limiting block at the two ends of the adjusting section.
(4) Through setting up the fan housing, can carry out the compensation wind in the compensation wind channel after effectively gathering, fill the downthehole entering primary air duct of exhaust air again and carry out the pressure boost, set up the exhaust air outlet into the compensation effect of the assurance compensation amount of wind that can be better towards primary air duct air-out direction simultaneously.
(5) The utility model discloses a wind cap, including wind cap, intercommunicating pore, wind cap, wind vent, wind pressure compensation, wind pressure difference compensation compression spring, wind channel top income wind channel, wind vent entering wind gathering cover in the wind accessible hood in the compensation wind channel, can pass through the size of selection spring power during the use, confirm the pressure differential of wind cap during operation compensation wind channel and wind channel.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic sectional view of the hood of the present invention;
fig. 3 is a schematic structural view of the hood.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a boiler nozzle prevents scaling loss monitoring devices which characterized in that includes:
the air conditioner comprises a primary air channel 1, wherein a swirler 2 is fixedly arranged inside the primary air channel 1, and one end of the primary air channel 1 is fixedly connected with a first air inlet pipe 3;
the air supply device comprises a compensation air duct 4, wherein the compensation air duct 4 is sleeved between a cyclone 2 and a first air inlet pipe 3 outside a primary air duct 1, the compensation air duct 4 is fixedly connected with the outer wall of the primary air duct 1, the top end and the bottom end of the compensation air duct 4 are fixedly connected with a second air inlet pipe 5, a communication hole is formed between the compensation air duct 4 and the primary air duct 1, an air cap 6 is installed in the communication hole, and the air cap 6 can move towards or keep away from the inner side of the primary air duct according to the pressure change in the primary air duct 1 so as to adjust the air quantity entering the primary air duct 1 from the compensation air duct 4.
Particularly, the utility model discloses an at the pipeline wall mounting compensation wind channel 4 in wind channel 1, utilize wind pressure differential in wind channel 1 and the compensation wind channel 4 to come, thereby adjust the wind by in the compensation wind channel 4 along with the change of pressure differential through setting up hood 6, get into the volume in the wind channel 1 to guarantee that the wind pressure in the wind channel keeps in a invariable within range.
As an optional technical solution of the utility model:
first air-supply line 3 is hourglass hopper-shaped, first air-supply line 3 is to keeping away from the one end in primary air duct 1 and be the enlarged structure. The wind pressure entering the primary air duct 1 can be increased by the arrangement of the funnel-shaped first air inlet pipe 3.
As an optional technical solution of the utility model:
the hood 6 is including adjusting section 62 to and be fixed in first stopper 61, the second stopper 63 that adjusts section 62 both ends respectively, adjust section 62 cross section for the rectangle, be equipped with along the axial with the intercommunication chamber and the lateral wall of compensation wind channel 4 intercommunication on be equipped with the venthole 621 in intercommunication chamber, intercommunicating hole cross section size and the matching of adjusting section 62 cross section, first stopper 61, second stopper 63 cross section all are greater than the connecting hole cross section, first stopper 61 sets up in compensation wind channel 4, second stopper 63 sets up 1 in the wind channel, venthole 621 is for following the waist hole that adjusts section 62 axial setting.
Specifically, the adjusting section 62 is inserted into the communicating hole by arranging the hood 6 into three sections, namely, the adjusting section 62, and the first limiting block 61 and the second limiting block 63 which are respectively fixed at two ends of the adjusting section 62, the position installation position of the hood 6 is limited by the first limiting block 61 and the second limiting block 63, the cross section of the adjusting section 62 is arranged into a rectangle, the hood 6 can be prevented from rotating when the wind pressure changes, the limiting can be effectively carried out, the communicating cavity and the air outlet 621 are arranged in the adjusting section 62, when the hood does not work, namely, the wind pressure difference between the primary wind channel 1 and the compensation wind channel 4 is in a normal range, the communicating hole is sealed by the adjusting section 62 and the outer wall of the primary wind channel 1, the compensation wind channel 4 does not pressurize the primary wind channel, when the hood works, namely, the wind pressure difference between the wind pressure in the primary wind channel 1 and the wind pressure in the compensation wind channel 4 is overlarge, the wind pressure in the compensation wind channel 4 pushes up the hood, and the wind pressure is set up to match the arc of the 1 inner wall of the primary wind channel with the second stopper 63 in the primary wind channel 1 is entered into by the communicating cavity and the air outlet 621 in the adjusting section 62 (the hood is set under the primary wind channel radially, and the pressure difference of the compensation pressure is controlled by the gravity of the hood), so as to ensure that the second stopper 63 is attached to the 1 inner wall of the primary wind channel.
As an optional technical solution of the utility model:
the air conditioner is characterized in that a wind collecting cover 7 is arranged in the primary air duct 1, the wind collecting cover 7 is fixedly connected to the inner wall of the primary air duct 1 in an annular shape, the connecting hole cover is arranged in the wind collecting cover 7, and an air outlet 72 is formed in the cover wall of the wind collecting cover 7 and faces the air outlet direction of the primary air duct 1.
Particularly, set up wind-collecting cover 7, and with wind-collecting cover 7 welding in a wind channel, can polymerize the wind that compensation wind channel 4 got into in a wind channel 1, and spout along a wind-out direction of wind channel 1 in the exhaust vent 72, can effectively carry out the pressure boost in the wind channel, the wind pressure that makes here diminishes in the setting department primary air channel 1 internal diameter of wind-collecting cover 7 simultaneously, the exhaust vent 72 department wind pressure at the wind-collecting cover rear side reduces to some extent, the wind pressure of compensation is changeed and is merged into.
As an optional technical solution of the utility model:
a compression spring 8 is arranged between the first limiting block 61 and the wind-collecting cover 7, a first limiting column 611 is fixedly connected to the first limiting block 61, a second limiting column 71 is fixedly connected to the inner wall of the wind-collecting cover 7, and two ends of the spring 8 are respectively sleeved on the first limiting column 611 and the second limiting column 71.
Through setting up compression spring 8, utilize compression spring 8 to exert force to the hood, can guarantee the multichannel air inlet with the circumference setting in hood 6 along a wind channel 1, the setting of first spacing post 611, the spacing post 71 of second for compression spring 8 is difficult for taking place the position change.
In conclusion, when the coal powder combustion furnace is used, coal powder is firstly fed into the combustion furnace through the primary air channel 1, primary air generates rotational flow through the cyclone and enters the combustion furnace, when the air pressure in the primary air channel 1 is insufficient, compensation air enters the secondary air inlet pipe 5, passes through the compensation air channel 4 and passes through the extrusion air cap 6, and then enters the combustion furnace after compensation, so that the air pressure in the primary air channel 1 is enough to be used, and the problem of backfire burning loss can not occur.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a boiler nozzle prevents scaling loss monitoring devices which characterized in that includes:
the air conditioner comprises a primary air duct (1), wherein a swirler (2) is fixedly mounted inside the primary air duct (1), and one end of the primary air duct (1) is fixedly connected with a first air inlet pipe (3);
compensation wind channel (4), compensation wind channel (4) cup joint the outside in primary air channel (1) and are located swirler (2) and first air-supply line (3) between, just the outer wall fixed connection of compensation wind channel (4) and primary air channel (1), the equal fixedly connected with second air-supply line (5) in top and the bottom in compensation wind channel (4), be equipped with the intercommunicating pore between compensation wind channel (4) and primary air channel (1), install hood (6) in the intercommunicating pore, hood (6) can be according to primary air channel (1) pressure variation orientation or keep away from the inboard motion of primary air channel to adjust the amount of wind that gets into in primary air channel (1) by compensation wind channel (4).
2. The apparatus for monitoring the burnout prevention of a boiler nozzle according to claim 1, wherein:
first air-supply line (3) are hourglass hopper-shaped, first air-supply line (3) are to keeping away from one end in primary air duct (1) and are the enlarged structure.
3. The apparatus for monitoring the burnout prevention of a boiler nozzle according to claim 1, wherein: the blast cap (6) is including adjusting section (62) to and be fixed in first stopper (61), second stopper (63) that adjust section (62) both ends respectively, adjust section (62) cross section for the rectangle, be equipped with along the axial with the intercommunication chamber and the lateral wall of compensation wind channel (4) intercommunication on be equipped with intercommunication chamber venthole (621), intercommunicating hole cross section size and regulation section (62) cross section phase-match, first stopper (61), second stopper (63) cross section all are greater than the connecting hole cross section, first stopper (61) set up in compensation wind channel (4), second stopper (63) set up in one-time wind channel (1), venthole (621) are along the waist hole of adjusting section (62) axial setting.
4. The apparatus of claim 3, wherein:
be equipped with wind-collecting cover (7) in primary air duct (1), wind-collecting cover (7) are cyclic annular fixed connection on primary air duct (1) inner wall, the connection hole cover is located in wind-collecting cover (7), be equipped with exhaust vent (72) towards primary air duct (1) air-out direction on wind-collecting cover (7) cover wall.
5. The apparatus for monitoring the burnout prevention of a boiler nozzle according to claim 4, wherein: be equipped with compression spring (8) between first stopper (61) and wind-collecting cover (7), first spacing post (611) of fixedly connected with on first stopper (61), fixed connection has spacing post (71) of second on the wind-collecting cover (7) inner wall, spring (8) both ends cup joint respectively on first spacing post (611), spacing post (71) of second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120821578.9U CN214791081U (en) | 2021-04-21 | 2021-04-21 | Burning loss prevention monitoring device for boiler nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120821578.9U CN214791081U (en) | 2021-04-21 | 2021-04-21 | Burning loss prevention monitoring device for boiler nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214791081U true CN214791081U (en) | 2021-11-19 |
Family
ID=78688277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120821578.9U Expired - Fee Related CN214791081U (en) | 2021-04-21 | 2021-04-21 | Burning loss prevention monitoring device for boiler nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214791081U (en) |
-
2021
- 2021-04-21 CN CN202120821578.9U patent/CN214791081U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |