CN217274103U - Novel bed material adding system of circulating fluidized bed boiler - Google Patents
Novel bed material adding system of circulating fluidized bed boiler Download PDFInfo
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- CN217274103U CN217274103U CN202220465428.3U CN202220465428U CN217274103U CN 217274103 U CN217274103 U CN 217274103U CN 202220465428 U CN202220465428 U CN 202220465428U CN 217274103 U CN217274103 U CN 217274103U
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Abstract
The utility model provides a new bed material adding system of a circulating fluidized bed boiler, wherein a charging hopper is arranged in the middle of the upper side of a bed material tank; the first valve is arranged in the middle of the charging hopper; two conveying pipes are symmetrically arranged on the upper side of the bed material tank; the material receiving pipe is connected with the material conveying pipes through a tee joint and arranged in the middle of the upper ends of the two material conveying pipes; the second valve is connected with the material receiving pipe; two breather pipes are symmetrically arranged on the upper side of the bed material tank; the third valve is connected to the vent pipe; the exhaust pipe is arranged on one of the vent pipes; the fourth valve is arranged on the exhaust pipe; the air receiving pipe is connected with the two air through pipes through a tee; the fifth valve is arranged on the air receiving pipe; the pressure gauge is connected to the pipeline between the fifth valve and the tee joint. The advantages are that: the labor intensity of adding the bed materials is reduced, the complexity of a bed material adding system is simplified, the occupied space of the device is reduced, a large amount of transmission equipment is not required to be invested, and the investment cost is reduced.
Description
Technical Field
The utility model relates to a circulating fluidized bed technical field, specific theory especially relates to a new circulating fluidized bed boiler bed material addition system.
Background
The circulating fluidized bed boiler has the advantages of high combustion strength, high heat efficiency, wide fuel adaptability, excellent environmental protection performance, good load regulation performance and the like, along with the improvement of environmental awareness in recent years, the improvement of the automation control degree of the circulating fluidized bed boiler and the solution of the abrasion problem of the device, the circulating fluidized bed boiler has the advantages of being greatly superior to a chain furnace and a pulverized coal furnace, and thus, the circulating fluidized bed boiler is rapidly developed and widely applied.
Before the first start-up, the circulating fluidized bed boiler must add proper start-up bed material into the hearth to establish the initial material balance, when the furnace is shut down for accident or maintenance, the hearth bed material should be discharged, when the furnace is ignited, the bed material should be added into the hearth again to establish the material circulation.
At present to circulating fluidized bed boiler carry out the mode that bed material added comparatively tradition, to miniature production unit, the mode that utilizes artifical transport usually carries out the interpolation of bed material, staff's work burden has not only been increased, add that material personnel's frequent walking still tramples the hood in the stove easily, lead to the leakage of bed material, to medium and large-scale production unit, use coal conveying belt or chain bucket conveyer cooperation to carry out the interpolation of bed material in the other bed feed bin that sets up of boiler usually, its investment cost is higher, and the cost of operation maintenance is great, the use of actual processing is not convenient for equally.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel circulating fluidized bed boiler bed material interpolation system to solve the problem that proposes in the above-mentioned background art and not enough.
The technical scheme of the utility model: a new circulating fluidized bed boiler bed material addition system, comprising: the device comprises a bed material tank, a feeding hopper, a first valve, a material conveying pipe, a material receiving pipe, a second valve, a vent pipe, a third valve, an exhaust pipe, a fourth valve, a gas receiving pipe, a fifth valve and a pressure gauge; the charging hopper is arranged in the middle of the upper side of the bed material tank; the first valve is arranged in the middle of the charging hopper; two conveying pipes are symmetrically arranged on the upper side of the bed material tank; the material receiving pipe is connected with the material conveying pipes through a tee joint and arranged in the middle of the upper ends of the two material conveying pipes; the second valve is connected with the material receiving pipe; two breather pipes are symmetrically arranged on the upper side of the bed material tank; the third valve is connected to the vent pipe; the exhaust pipe is arranged on one of the vent pipes; the fourth valve is arranged on the exhaust pipe; the air receiving pipe is connected with the two air through pipes through a tee; the fifth valve is arranged on the air receiving pipe; and the pressure gauge is connected to a pipeline between the fifth valve and the tee joint.
Further, the bed material tank and the charging hopper are embedded underground.
Furthermore, the lower end of the material conveying pipe is in an inclined opening shape, and the lower end of the material conveying pipe is positioned at the bottom of the material pot of the bed.
The lower end of the vent pipe is positioned below the material tank of the bed.
Preferably, the first valve, the second valve and the fifth valve are all pneumatic butterfly valves, and the third valve and the fourth valve are welded ball valves.
The utility model discloses a bed material jar, including loading hopper, bed material jar, breather pipe, blast pipe, fifth valve, the loading hopper is connected through the welding mode with the bed material jar, and first valve passes through bolt fixed connection with the loading hopper, and the conveying pipeline is connected with bed material jar flange connector, and the second valve is connected through the flange with material receiving pipe, and the breather pipe is connected with bed material jar flange connector, the third valve is connected through the flange with the breather pipe, and the blast pipe is connected through the welding mode with the breather pipe, and the fifth valve with connect the trachea to be connected through the flange, and the fourth valve passes through threaded connection with the blast pipe.
Compared with the prior art, the utility model the advantage that has: the utility model relates to a new circulating fluidized bed boiler bed material addition system through pre-buried bed material jar in the boiler room, utilizes the breather pipe, leads to the cooperation that has the air compressor machine among the environmental protection system in material pipe, each valve and the heat source factory, can realize the line of bed material and add, has not only reduced the intensity of labour who adds the bed material, has simplified the complexity of bed material addition system, has reduced the occupation space of device, still need not to drop into a large amount of transmission equipment, has reduced investment cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the bed tank of the present invention;
FIG. 3 is a schematic view of the internal structure of the bed material tank of the present invention;
fig. 4 is a schematic structural view of the air receiving pipe of the present invention.
In the figure: the device comprises a bed material tank 1, a charging hopper 2, a first valve 3, a material conveying pipe 4, a material receiving pipe 5, a second valve 6, a vent pipe 7, a third valve 8, an exhaust pipe 9, a fourth valve 10, a gas receiving pipe 11, a fifth valve 12 and a pressure gauge 13.
Detailed Description
Referring to fig. 1 to 4, a new bed material adding system of a circulating fluidized bed boiler: the method comprises the following steps: the device comprises a bed material tank 1, a charging hopper 2, a first valve 3, a material conveying pipe 4, a material receiving pipe 5, a second valve 6, a vent pipe 7, a third valve 8, an exhaust pipe 9, a fourth valve 10, a gas receiving pipe 11, a fifth valve 12 and a pressure gauge 13; the bed material tank 1 and the charging hopper 2 are pre-buried underground; the charging hopper 2 is arranged in the middle of the upper side of the bed material tank 1, and the charging hopper 2 is connected with the bed material tank 1 in a welding mode; the first valve 3 is arranged in the middle of the charging hopper 2, and the first valve 3 is connected with the charging hopper 2 in a bolt fixing mode; the material conveying pipes 4 are respectively arranged on the left side and the right side of the upper side of the bed material tank 1 (the left side and the right side are seen according to the figure 1, but the limitation to the technical scheme of the utility model is not formed, the same below), the material conveying pipes 4 are connected with the flange connectors of the bed material tank 1, the lower ends of the material conveying pipes 4 are in an inclined opening shape, and the lower ends of the material conveying pipes 4 are positioned at the bottom inside the bed material tank 1; the material receiving pipe 5 is arranged in the middle of the upper ends of the two material conveying pipes 4, and the material receiving pipe 5 is connected with the material conveying pipes 4 through a tee joint; the second valve 6 is arranged in the middle of the material receiving pipe 5, and the second valve 6 is connected with the material receiving pipe 5 through a flange; the air pipes 7 are respectively arranged on the left side and the right side of the upper side of the bed material tank 1, the air pipes 7 are connected with the bed material tank 1 through flange connectors, and the lower ends of the air pipes 7 are positioned below the inside of the bed material tank 1; the third valve 8 is arranged in the middle of the vent pipe 7, and the third valve 8 is connected with the vent pipe 7 through a flange; the exhaust pipe 9 is arranged on one of the vent pipes 7, and the exhaust pipe 9 is connected with the vent pipe 7 in a welding mode; the fourth valve 10 is arranged in the middle of the exhaust pipe 9, and the fourth valve 10 is connected with the exhaust pipe 9 through threads; the air receiving pipe 11 is arranged in the middle of the upper ends of the two vent pipes 7, and the air receiving pipe 11 is connected with the two vent pipes 7 through a tee joint; the fifth valve 12 is disposed in the middle of the gas receiving pipe 11, and the fifth valve 12 is connected to the gas receiving pipe 11 through a flange. And the pressure gauge 13 is connected to a pipeline between the fifth valve 12 and the tee joint.
The first valve 3, the second valve 6 and the fifth valve 12 are all pneumatic butterfly valves, and the third valve 8 and the fourth valve 10 are welded ball valves. When the first valve 3 is opened, bed material can be fed from the hopper 2 to the interior of the bed material tank 1, while the fourth valve 10 is opened, namely, the gas exhaust pipe 9 in the device can be exhausted, and because the air compressors are arranged in the heat source plants, as shown in figures 1 and 3, after the air compressors are connected with the gas receiving pipe 11, compressed air enters the inside of the bed material tank 1 through the vent pipe 7, the bed materials in the bed material tank 1 are extruded to the inside of the material conveying pipe 4 and are finally conveyed to the inside of the boiler through the material receiving pipe 5, thereby realizing the addition of the bed materials, compared with the adding mode of manually adding or using other conveying equipment in the prior art, the device not only reduces the labor intensity of adding the bed materials, simplifies the complexity of a bed material adding system, reduces the occupied space of the device, but also does not need to invest a large amount of transmission equipment, and reduces the investment cost.
The device use: firstly, the device is installed in a boiler room, a material receiving pipe 5 is connected with a boiler charging port, a gas receiving pipe 11 is connected with an existing air compressor of a heat source plant, a first valve 3, a second valve 6 and a fifth valve 12 are respectively connected into an external control device, a third valve 8 is opened, then the second valve 6 and the fifth valve 12 are closed, the first valve 3 and the fourth valve 10 are opened, a self-provided small-sized dump truck of the heat source plant is utilized to add bed materials into a bed material tank 1 through a charging hopper 2, after the addition of the bed materials is finished, the first valve 3 and the fourth valve 10 are closed, the second valve 6 and the fifth valve 12 are opened, the bed materials are added into the charging port of the boiler through a material passing pipe 4 and the material receiving pipe 5 by utilizing the air pressure of the air compressor, meanwhile, the data of a pressure gauge 13 can be observed, the pressure gauge 13 is gradually increased when material conveying is started, and the pressure of the pressure gauge 13 is gradually reduced along with the conveying, when the material is conveyed to a certain value and is kept unchanged, the material conveying is finished, and the steps can be repeated for repeated feeding.
Claims (6)
1. A novel circulating fluidized bed boiler bed material addition system comprising: the device comprises a bed material tank (1), a feeding hopper (2), a first valve (3), a material conveying pipe (4), a material receiving pipe (5), a second valve (6), a vent pipe (7), a third valve (8), an exhaust pipe (9), a fourth valve (10), a gas receiving pipe (11), a fifth valve (12) and a pressure gauge (13); the method is characterized in that: the charging hopper (2) is arranged in the middle of the upper side of the bed charging bucket (1); the first valve (3) is arranged in the middle of the charging hopper (2); two conveying pipes (4) are symmetrically arranged on the upper side of the bed material tank (1); the material receiving pipe (5) is connected with the material conveying pipes (4) through a tee joint, and the material receiving pipe (5) is arranged in the middle of the upper ends of the two material conveying pipes (4); the second valve (6) is connected with the material receiving pipe (5); two breather pipes (7) are symmetrically arranged on the upper side of the bed material tank (1); the third valve (8) is connected to the vent pipe (7); the exhaust pipe (9) is arranged on one vent pipe (7); the fourth valve (10) is arranged on the exhaust pipe (9); the air receiving pipe (11) is connected with the two air through pipes (7) through a tee; the fifth valve (12) is arranged on the air receiving pipe (11); and the pressure gauge (13) is connected to a pipeline between the fifth valve (12) and the tee joint.
2. The new circulating fluidized bed boiler bed material addition system of claim 1, wherein: the bed charging bucket (1) and the charging hopper (2) are embedded underground.
3. The new circulating fluidized bed boiler bed material addition system of claim 1, characterized in that: the lower end of the material conveying pipe (4) is in an inclined opening shape, and the lower end of the material conveying pipe (4) is positioned at the bottom in the bed material tank (1).
4. The new circulating fluidized bed boiler bed material addition system of claim 1, wherein: the lower end of the vent pipe (7) is positioned below the inside of the bed material tank (1).
5. The new circulating fluidized bed boiler bed material addition system of claim 1, characterized in that: the first valve (3), the second valve (6) and the fifth valve (12) are all pneumatic butterfly valves, and the third valve (8) and the fourth valve (10) are welded ball valves.
6. The new circulating fluidized bed boiler bed material addition system of claim 1, characterized in that: hopper (2) are connected through the welding mode with bed material jar (1), and bolt fixed connection is passed through with hopper (2) in first valve (3), and conveying pipeline (4) are connected with bed material jar (1) flange joint, and second valve (6) are connected through the flange with material receiving pipe (5), and breather pipe (7) are connected with bed material jar (1) flange joint, third valve (8) are connected through the flange with breather pipe (7), and blast pipe (9) are connected through the welding mode with breather pipe (7), and fifth valve (12) are connected through the flange with gas receiving pipe (11), and fourth valve (10) are connected through threaded connection with blast pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220465428.3U CN217274103U (en) | 2022-03-05 | 2022-03-05 | Novel bed material adding system of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220465428.3U CN217274103U (en) | 2022-03-05 | 2022-03-05 | Novel bed material adding system of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217274103U true CN217274103U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220465428.3U Active CN217274103U (en) | 2022-03-05 | 2022-03-05 | Novel bed material adding system of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217274103U (en) |
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2022
- 2022-03-05 CN CN202220465428.3U patent/CN217274103U/en active Active
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