CN216409014U - Glass fiber reinforced plastic flue of natural ventilation cooling tower - Google Patents
Glass fiber reinforced plastic flue of natural ventilation cooling tower Download PDFInfo
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- CN216409014U CN216409014U CN202122733034.XU CN202122733034U CN216409014U CN 216409014 U CN216409014 U CN 216409014U CN 202122733034 U CN202122733034 U CN 202122733034U CN 216409014 U CN216409014 U CN 216409014U
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- outlet pipe
- flue
- guide plate
- main body
- cooling tower
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Abstract
The utility model relates to a glass fiber reinforced plastic flue of a natural draft cooling tower, which comprises a flue main body, a first outlet pipe and a second outlet pipe, wherein the first outlet pipe and the second outlet pipe are arranged on the flue main body; the first outlet pipe is positioned at the tail end of the flue main body, and the tail end of the pipeline of the first outlet pipe is communicated with the pipeline of the flue main body through a first transition section; the second outlet pipe is positioned on the flue main body and close to the first outlet pipe, and the pipeline of the second outlet pipe is communicated with the flue main body. The glass fiber reinforced plastic flue effectively reduces the local resistance at the outlet, further adopts the air blower with lower outlet pressure, saves more electricity during the operation, reduces the operation cost, has higher mixing efficiency of the flue gas and the hot air in the cooling tower, and has more flexible processing and production process and wider application range.
Description
Technical Field
The utility model relates to the field of smoke exhaust buildings (structures), in particular to a glass fiber reinforced plastic flue of a natural draft cooling tower.
Background
Natural draft cooling towers are common cooling devices in thermal power plants, and glass fiber reinforced plastic flues are important components of flue gas cooling towers. The glass fiber reinforced plastic flue of the existing natural ventilation smoke-discharging cooling tower turns in an L shape at the outlet, only one flue outlet is provided, the area of the outlet is equal to the cross-sectional area of the flue, the local resistance at the outlet is large when the glass fiber reinforced plastic flue is used, so that an air blower with enough outlet pressure is needed, the equipment cost is high, and the power consumption is also high. Meanwhile, because the area of the outlet is smaller, the mixing efficiency of the flue gas in the flue and the hot air in the cooling tower is low. Moreover, in actual production, the glass fiber reinforced plastic flue sometimes can be designed and manufactured simultaneously, and if the outlet area is found to be improper after the front section of the flue is processed, the whole flue needs to be produced again, which causes waste in time, labor, materials and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a natural draft cooling tower glass fiber reinforced plastic flue which is more suitable for actual production work and has smaller local resistance at an outlet, comprising a flue main body, and a first outlet pipe and a second outlet pipe which are arranged on the flue main body; the first outlet pipe is positioned at the tail end of the flue main body, and the tail end of the pipeline of the first outlet pipe is communicated with the pipeline of the flue main body through a first transition section; the second outlet pipe is positioned on the flue main body and close to the first outlet pipe, and the pipeline of the second outlet pipe is communicated with the flue main body.
Furthermore, a second transition section is arranged on one side, away from the first outlet pipe, of the bent part between the second outlet pipe and the flue main body, and the first transition section and the second transition section are straight.
Preferably, a flow guide plate is fixedly arranged on the inner wall of each of the first outlet pipe and the second outlet pipe.
Further, the guide plate is arc-shaped plate-shaped; the bending direction of the guide plate is the same as the bending direction of the pipeline in which the guide plate is positioned relative to the flue main body; the two sides of the guide plate are respectively and fixedly connected with the two sides of the inner wall of the pipeline where the guide plate is located, so that the inner space of the pipeline where the guide plate is located is separated.
Preferably, the first outlet pipe and the second outlet pipe are respectively provided with a support rod, one end of each support rod is fixedly connected with the inner wall of the pipeline where the support rod is located, and the other end of each support rod is fixedly connected with the guide plate in the pipeline where the support rod is located.
Preferably, the baffles in the first outlet duct comprise a first baffle and a second baffle; the first guide plate is positioned at the position close to the axis of the first outlet pipe, and the second guide plate is positioned at one side of the first guide plate close to the second outlet pipe, so that the first outlet pipe is internally divided into three pipelines.
Furthermore, a plurality of support rods are respectively arranged in the first outlet pipe and the second outlet pipe; one end of a support rod in the second outlet pipe is fixedly connected with the guide plate in the pipe, and the other end of the support rod is fixedly connected with the inner wall of the second outlet pipe; a through hole for penetrating the supporting rod is formed in the middle of the first guide plate; one end of a support rod in the first outlet pipe is fixedly connected with the inner wall of one side, far away from the second guide plate, of the first outlet pipe, and the other end of the support rod penetrates through the through hole and is fixedly connected with the second guide plate at the tail end.
Preferably, in the first outlet pipe or the second outlet pipe, the number of the support rods is equal to or greater than three, and the plurality of support rods are uniformly distributed.
Preferably, the second outlet duct has a diameter equal to or smaller than the flue body.
Preferably, the level of the end of the second outlet pipe is higher than the level of the end of the first outlet pipe.
Compared with the prior art, the utility model has the following beneficial effects:
1. the glass fiber reinforced plastic flue of the natural draft cooling tower adopts the arrangement of the F-shaped double outlets and the guide plates inside the double outlets, so that the local resistance at the outlets is effectively reduced.
2. Because the local resistance at the outlet is lower, the blower with lower outlet pressure can be adopted, the initial investment of the blower is reduced, the power consumption index of the blower is lower, more electricity is saved during the operation, and the operation cost is reduced.
3. The total area of the flue outlet is larger than that of the original glass fiber reinforced plastic flue, so that the mixing efficiency of the flue gas in the glass fiber reinforced plastic flue of the natural ventilation cooling tower and the hot air in the cooling tower is effectively improved, and the flue gas can be better mixed with the hot air in the natural ventilation cooling tower.
4. In actual production, the glass fiber reinforced plastic flue is sometimes designed and manufactured at the same time, if the area of an outlet is found to be improper after the front section of the flue is processed, the whole flue needs to be produced again, and waste in time, labor, materials and the like is caused; by adopting the mode of the utility model, the area of the second outlet pipe can be adjusted according to the requirement during production, so that the total area of the outlet can meet the requirement under the condition of not changing the finished flue, and the utility model is more flexible and has wider application range.
Drawings
FIG. 1 is a schematic sectional view of an outlet portion of a glass fiber reinforced plastic flue according to an embodiment of the present invention.
FIG. 2 is a schematic top view of the exit portion of the GRP flue in the embodiment of FIG. 1.
Description of the figure numbers: 1. a first outlet pipe; 2. a second outlet pipe; 3. a flue main body; 4. a baffle; 5. a first transition section; 6. a second transition section; 7. a support bar; 8. a first baffle; 9. a second baffle.
Detailed Description
Referring to fig. 1, the glass fiber reinforced plastic flue of the natural draft cooling tower of the present invention includes a flue main body 3, and a first outlet pipe 1 and a second outlet pipe 2 disposed thereon; the first outlet pipe 1 is positioned at the tail end of the flue main body 3, and the tail end of the pipeline of the first outlet pipe 1 is communicated with the pipeline of the flue main body 3 through a first transition section 5; the second outlet pipe 2 is positioned on the flue main body 3 near the first outlet pipe 1, and the pipeline of the second outlet pipe 2 is communicated with the flue main body 3.
As is well known in the art, the glass fiber reinforced plastic flue is placed horizontally as shown in fig. 1, and the outlet of the flue is directed vertically upward, so that the flue gas is discharged upward into the cooling tower, and then the hot air in the cooling tower drives the flue gas upward. The first outlet pipe 1 and the second outlet pipe 2 are both arranged vertically upwards, namely, the first outlet pipe 1 and the second outlet pipe 2 are positioned on the same side of the flue main body 3, and the axis A of the first outlet pipe 1 and the axis B of the second outlet pipe 2 are both vertical to the axis C of the flue main body 3. It will be understood that the skilled person can set the axis C of the flue main body 3 to be curved according to actual needs, and the included angle of the axis A, B, C can also be adjusted to substantially ensure that the first outlet pipe 1 and the second outlet pipe are set upward to achieve the desired technical effect.
Because the utility model adopts the F-shaped double outlets, the total area of the outlets of the glass fiber reinforced plastic flue is increased, the local resistance at the outlets is effectively reduced, and then the blower with smaller outlet pressure can be adopted, the initial investment of the blower is reduced, the power consumption index of the blower is lower, the blower saves more power during the operation, and the operation cost is reduced; meanwhile, the mixing efficiency of the flue gas in the glass fiber reinforced plastic flue of the natural draft cooling tower and the hot air in the cooling tower is effectively improved, and the flue gas can be better mixed with the hot air in the natural draft cooling tower.
Further, the diameter of the second outlet pipe 2 may be designed to be equal to or smaller than the flue body 3. In actual production, if the traditional scheme is adopted, after the front section of the flue main body 3 is processed, the total area of the required outlet obtained by calculation and design is found to be necessarily larger than the sectional area of the outlet (namely, the sectional area of the flue main body 3 corresponds to the sectional area of the first outlet pipe 1 in the utility model), the situation cannot be solved, and only the re-production can be carried out, so that the waste is caused; if the scheme of the utility model is adopted, the total area of the outlet can meet the requirement under the condition of not changing the finished flue main body 3 (namely, not changing the first outlet pipe 1) by adjusting and designing the size of the second outlet pipe 2, and the utility model is more flexible and has wider application range.
As shown in fig. 1, the first outlet pipe 1 has a first transition section 5, which is adopted to further assist in guiding the flue gas, so that the resistance at the outlet can be reduced. Preferably, as shown in fig. 1, a second transition section 6 is provided at a side of the bend between the second outlet pipe 2 and the flue main body 3, which is far away from the first outlet pipe 1, so as to further help to guide the flue gas, which can more easily enter the pipeline of the second outlet pipe 2, thereby sharing the resistance at the first outlet pipe 1. Further, the first transition section 5 and the second transition section 6 are both straight pipes (i.e., are part of a cylindrical surface, and are represented as straight line segments in fig. 1), so that the flow guiding effect is good; of course, the first transition 5 and said second transition 6 may also be provided as more smoothly curved tubes.
Preferably, a flow guide plate 4 is fixedly arranged on the inner wall of the first outlet pipe 1 and the inner wall of the second outlet pipe 2. The deflector 4 can adopt any structure in the prior art which can play a role in guiding flow. In a preferred embodiment, as shown in fig. 1 and 2, the deflector 4 is in the shape of an arc, and the bending direction of the arc is the same as the bending direction (i.e. the flue gas flow direction) of the duct in which the deflector is located relative to the flue main body 3. Two sides of the guide plate 4 are respectively and fixedly connected with two sides of the inner wall of the pipeline where the guide plate is located, so that the inner space of the pipeline where the guide plate is located is separated. In a further embodiment, the baffle 4 in the first outlet duct 1 comprises a first baffle 8 and a second baffle 9; the first guide plate 8 is positioned at a position close to the axis A of the first outlet pipe 1, and the second guide plate 9 is positioned at one side of the first guide plate 8 close to the second outlet pipe 2, so that three pipelines are formed in the first outlet pipe 1 in a separated mode.
In order to ensure that the guide plate 4 is fixed firmly and the overall strength and service life of the structure are improved, it is further preferable that the first outlet pipe 1 and the second outlet pipe 2 are respectively provided with a support rod 7, one end of the support rod 7 is fixedly connected with the inner wall of the pipeline where the support rod is located, and the other end of the support rod is fixedly connected with the guide plate 4 in the pipeline where the support rod is located. It should be noted that the support rod 7 is a thin cylinder, so that it will not hinder the movement of the smoke.
Specifically, taking the embodiment shown in fig. 1 and 2 as an example, a through hole for penetrating the support rod 7 is formed in the center of the first guide plate 8; one end of a support rod 7 in the first outlet pipe 1 is fixedly connected with the inner wall of the first outlet pipe 1 far away from one side of the second guide plate 9, and the other end of the support rod passes through the through hole and is fixedly connected with the second guide plate 9 at the tail end, so that the first guide plate 8 and the second guide plate 9 are simultaneously fixed through the support rod 7. One end of a support rod 7 in the second outlet pipe 2 is fixedly connected with the guide plate 4 in the pipe, and the other end of the support rod is fixedly connected with the inner wall of the second outlet pipe 2. Of course, the support rod 7 may be disposed at other positions as long as the guide plate 4 can be fixed in an auxiliary manner.
Preferably, in the first outlet pipe 1 or the second outlet pipe 2, the number of the support rods 7 is equal to or greater than three, and more preferably, the number of the support rods is four, and the plurality of support rods 7 are uniformly distributed, so that the fixing and supporting effect is better.
Preferably, the level of the end of the second outlet pipe 2 is higher than the level of the end of the first outlet pipe 1. Thus, the second outlet pipe 2 can be ensured to contain the guide plate 4 with enough length, and the bent guide part is enough long, so that the flue gas is guided more smoothly. The first outlet pipe 1 is directly connected to the end of the flue body 3, while the second outlet pipe 2 corresponds to a branch pipe arranged on the side of the flue body 3, and in practice the lengths of the first outlet pipe 1 and the second outlet pipe 2 are similar, while the second outlet pipe 2 is higher in the horizontal height. Of course, in case of ensuring that the length of the second outlet pipe 2 is sufficient in part, it is also possible to increase the length of the first outlet pipe 1 so that its end is flush or higher than the second outlet pipe 2.
It can be understood that the present invention is mainly an improvement on the outlet portion of the flue made of glass fiber reinforced plastics, and the rest of the flue is made by adopting the prior art, and the details are not described herein, and can be easily implemented by those skilled in the art.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the present invention may occur to those skilled in the art without departing from the principle of the present invention, and such modifications and embellishments should also be considered as within the scope of the present invention.
Claims (10)
1. The utility model provides a natural draft cooling tower glass steel flue which characterized in that: comprises a flue main body (3) and a first outlet pipe (1) and a second outlet pipe (2) which are arranged on the flue main body; the first outlet pipe (1) is positioned at the tail end of the flue main body (3), and the pipeline tail end of the first outlet pipe (1) is communicated with the pipeline of the flue main body (3) through a first transition section (5); the second outlet pipe (2) is positioned on the flue main body (3) and close to the first outlet pipe (1), and a pipeline of the second outlet pipe (2) is communicated with the flue main body (3).
2. The natural draft cooling tower glass fiber reinforced plastic flue of claim 1, wherein: a second transition section (6) is arranged on one side, far away from the first outlet pipe (1), of the bent part between the second outlet pipe (2) and the flue main body (3); the first transition section (5) and the second transition section (6) are both straight.
3. The natural draft cooling tower glass fiber reinforced plastic flue of claim 1, wherein: and flow deflectors (4) are fixedly arranged on the inner walls of the first outlet pipe (1) and the second outlet pipe (2).
4. The natural draft cooling tower glass fiber reinforced plastic flue of claim 3, wherein: the guide plate (4) is arc-shaped plate-shaped; the bending direction of the guide plate (4) is the same as the bending direction of the pipeline where the guide plate is located relative to the flue main body (3); and two sides of the guide plate (4) are respectively and fixedly connected with two sides of the inner wall of the pipeline where the guide plate is located, so that the inner space of the pipeline where the guide plate is located is separated.
5. The natural draft cooling tower glass fiber reinforced plastic flue of claim 4, wherein: the first outlet pipe (1) and the second outlet pipe (2) are respectively provided with a support rod (7), one end of each support rod (7) is fixedly connected with the inner wall of the pipeline where the support rod is located, and the other end of each support rod is fixedly connected with the guide plate (4) in the pipeline where the support rod is located.
6. The natural draft cooling tower glass fiber reinforced plastic flue of claim 4, wherein: the baffle (4) in the first outlet duct (1) comprises a first baffle (8) and a second baffle (9); the first guide plate (8) is located at a position close to the axis of the first outlet pipe (1), and the second guide plate (9) is located at one side of the first guide plate (8) close to the second outlet pipe (2), so that three pipelines are formed in the first outlet pipe (1) in a separated mode.
7. The natural draft cooling tower glass fiber reinforced plastic flue of claim 6, wherein: a plurality of support rods (7) are respectively arranged in the first outlet pipe (1) and the second outlet pipe (2);
one end of the support rod (7) in the second outlet pipe (2) is fixedly connected with the guide plate (4) in the pipe, and the other end of the support rod is fixedly connected with the inner wall of the second outlet pipe (2);
a through hole for penetrating the supporting rod (7) is formed in the middle of the first guide plate (8); one end of the support rod (7) in the first outlet pipe (1) is fixedly connected with the inner wall of one side, far away from the second guide plate (9), of the first outlet pipe (1), and the other end of the support rod penetrates through the through hole and is fixedly connected with the second guide plate (9) at the tail end.
8. The natural draft cooling tower glass fiber reinforced plastic flue of claim 5 or 7, wherein: in the first outlet pipe (1) or the second outlet pipe (2), the number of the support rods (7) is more than or equal to three, and the support rods (7) are uniformly distributed.
9. The natural draft cooling tower fiberglass reinforced plastic flue of any one of claims 1 to 7, wherein: the diameter of the second outlet pipe (2) is equal to or smaller than the flue body (3).
10. The natural draft cooling tower fiberglass reinforced plastic flue of any one of claims 1 to 7, wherein: the level of the end of the second outlet pipe (2) is higher than the level of the end of the first outlet pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122733034.XU CN216409014U (en) | 2021-11-09 | 2021-11-09 | Glass fiber reinforced plastic flue of natural ventilation cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122733034.XU CN216409014U (en) | 2021-11-09 | 2021-11-09 | Glass fiber reinforced plastic flue of natural ventilation cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216409014U true CN216409014U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122733034.XU Active CN216409014U (en) | 2021-11-09 | 2021-11-09 | Glass fiber reinforced plastic flue of natural ventilation cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216409014U (en) |
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2021
- 2021-11-09 CN CN202122733034.XU patent/CN216409014U/en active Active
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