CN216245654U - Filler cooling system of counter-flow wet-type natural draft cooling tower - Google Patents
Filler cooling system of counter-flow wet-type natural draft cooling tower Download PDFInfo
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- CN216245654U CN216245654U CN202122870499.XU CN202122870499U CN216245654U CN 216245654 U CN216245654 U CN 216245654U CN 202122870499 U CN202122870499 U CN 202122870499U CN 216245654 U CN216245654 U CN 216245654U
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Abstract
The utility model relates to a filler cooling system of a counter-flow wet natural draft cooling tower, which comprises a filler arranged in a filler area in the cooling tower, a water collecting tank arranged in the cooling tower and positioned below the filler, and a spraying device arranged in the cooling tower and positioned above the filler. The filling area is divided into an inner filling area, an inner filling area and an outer filling area. The distance between the filler sheets of the filler in the inner filler area is greater than that of the filler in the inner filler area, and the distance between the filler sheets of the filler in the inner filler area is greater than that of the filler in the outer filler area. The height of the filler in the inner filler area is smaller than that of the filler in the inner filler area, and the height of the filler in the inner filler area is smaller than that of the filler in the outer filler area. The packing is unevenly arranged in the cooling tower, so that the packing in the cooling tower can have higher cooling efficiency, and the energy consumption of the cooling tower is reduced.
Description
Technical Field
The utility model relates to the technical field of cooling towers, in particular to a filler cooling system of a counter-flow wet natural draft cooling tower.
Background
The natural draft wet cooling tower is an important cooling device of a thermal power station, and the filler bears 60% -70% of heat dissipation capacity, and in the prior art, the filler is generally uniformly arranged in the cooling tower to achieve the cooling effect, but the filler is uniformly arranged in the cooling tower, so that the optimal cooling performance of the cooling tower cannot be completely achieved.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a filler cooling system of a counter-flow wet natural draft cooling tower, aiming at improving the cooling efficiency of the cooling tower.
(II) technical scheme
In order to solve the above problems, the present invention provides
(III) advantageous effects
According to the utility model, the filler region in the cooling tower is divided into the inner filler region, the middle filler region and the outer filler region from inside to outside along the tower diameter direction of the cooling tower, the fillers are arranged in the inner filler region, the middle filler region and the outer filler region, the heights of the fillers are gradually increased from inside to outside along the tower diameter direction of the cooling tower, and the distances between the filler sheets are gradually reduced, so that the fillers in the cooling tower can have higher cooling efficiency, and the energy consumption of the cooling tower is reduced.
Drawings
FIG. 1 is a schematic diagram of a packing cooling system of a counter-flow wet natural draft cooling tower of the present invention;
FIG. 2 is a top view of a packed region of the present invention;
FIG. 3 is a distribution diagram of the temperature difference between two sides of the filler in the present invention;
FIG. 4 is a differential moisture profile across the filler of the present invention;
figure 5 is a graph of enthalpy difference distribution across the packing of the present invention.
FIG. 6 is a graph showing the distribution of the moisture absorption capacity of air in the radial direction of a cooling tower according to the present invention.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, the present invention provides a filler cooling system of a counter-flow wet natural draft cooling tower, which includes a filler disposed in a filler region in the cooling tower, a sump disposed in the cooling tower and below the filler, and a spray device disposed in the cooling tower and above the filler. The spray set storage has the water that needs the cooling, and spray set can be with the water spraying of needs cooling filling, and water flows into the catch basin through filling, realizes the cooling.
The packing region is divided into an inner packing region, an inner packing region and an outer packing region, the inner packing region is located in the center of the packing region, the outer packing region is arranged close to the tower wall of the cooling tower, and the inner packing region is located between the inner packing region and the outer packing region. The distance between the filler sheets of the filler in the inner filler area is greater than that of the filler in the inner filler area, and the distance between the filler sheets of the filler in the inner filler area is greater than that of the filler in the outer filler area. The height of the filler in the inner filler area is smaller than that of the filler in the inner filler area, and the height of the filler in the inner filler area is smaller than that of the filler in the outer filler area. According to the utility model, the filler region in the cooling tower is divided into the inner filler region, the middle filler region and the outer filler region from inside to outside along the tower diameter direction of the cooling tower, the fillers are arranged in the inner filler region, the middle filler region and the outer filler region, the heights of the fillers are gradually increased from inside to outside along the tower diameter direction of the cooling tower, and the distances between the filler sheets are gradually reduced, so that the fillers in the cooling tower can have higher cooling efficiency, and the energy consumption of the cooling tower is reduced.
Further, air moisture absorption capacity
The area is the inner filling area. Moisture absorption capacity of air
The area is the filling material area. Moisture absorption capacity of air
The area is the outer filler area. Wherein, WmaxThe maximum value of the air heat and moisture absorption capacity, W, of the packing in the cooling towerminThe minimum value of the heat and moisture absorption capacity of the air of the packing in the cooling tower.
W＝(1+|ΔT)|(1+|Δh|)(1+|Δx|)
Delta T is the temperature difference between the two sides of the filler, delta h is the enthalpy difference between the two sides of the filler, and delta x is the moisture content difference between the two sides of the filler. The Δ T, Δ h, and Δ x are related to the position of the filler in the cooling tower, a three-dimensional numerical calculation model for calculating the cooling performance of the counter-flow wet cooling tower can be established, values of air temperature, enthalpy, and moisture content above and below the filler are obtained based on the constant heat load calculation, and further Δ T, Δ h, and Δ x are obtained, as shown in fig. 3 to 5, where Δ T, Δ h, and Δ x have a nonlinear change rule along the radial direction of the cooling tower, and the air moisture absorption capacity W has a nonlinear increase rule along the radial direction of the cooling tower.
In the utility model, the air moisture absorption capacity in the cooling tower is obtained by utilizing the delta T, the delta h and the delta x, and then the filler area is divided by utilizing the air moisture absorption capacity in the cooling tower, so that the arrangement of the filler is more reasonable.
In a preferred embodiment, the filler sheet distance D of the filler in the filler region233mm, 32mm, 31mm, 30mm, 29mm or 28 mm; the height H2 of the filler in the filler region is 1.0m, 1.1m, 1.2m, 1.3m, 1.4m, 1.5m, 1.6m, 1.7m, 1.8m, 1.9m, 2.0m or 2.1 m.
Distance D between filler pieces of filler in inner filler area1＝Wavr/Wmin×D2Filling height H of the filling material in the inner filling region1＝Wmin/Wavr×H2Wherein W isavrThe average value of the heat absorption and moisture absorption capacities of the air along the radial direction of the cooling tower is taken as the filling. Since W has a non-linear increasing rule along the radial direction of the cooling tower, as shown in FIG. 6, if the radius of the cooling tower is R, W isavrIt can be understood that W is the quotient of the areas S and R of the cross-section enclosed by the horizontal axisavr＝S/R。
Distance D between the filling sheets of the filling material in the outer filling material region3＝Wavr/Wmax×D2Height H of the filling in the region of the outer filling1＝Wmax/Wavr×H2。
In a preferred embodiment, the wave form of the filler is a double ramp, S-wave, ramp or trapezoidal wave.
And finally, the heights of the fillers in the same area are the same, and the distances between the filler sheets of the fillers in the same area are the same. The shape of the inner filling area is circular, and the circle center of the inner filling area is superposed with the circle center of the filling area. The outer packing area is annular, and the outer side edge of the outer packing area is superposed with the tower wall of the cooling tower. The shape of the middle filling area is annular, the outer side edge of the middle filling area is overlapped with the inner side edge of the outer filling area, and the inner side edge of the middle filling area is overlapped with the outer side edge of the inner filling area.
It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.
Claims (10)
1. The filler cooling system of the counter-flow wet natural draft cooling tower is characterized by comprising filler arranged in a filler area in the cooling tower, a water collecting tank arranged in the cooling tower and positioned below the filler and a spraying device arranged in the cooling tower and positioned above the filler;
the filling region is divided into an inner filling region, a middle filling region and an outer filling region, the inner filling region is positioned in the center of the filling region, the outer filling region is arranged close to the tower wall of the cooling tower, and the middle filling region is positioned between the inner filling region and the outer filling region;
the distance between the filler sheets of the filler in the inner filler area is greater than that between the filler sheets of the filler in the inner filler area, and the distance between the filler sheets of the filler in the inner filler area is greater than that between the filler sheets of the filler in the outer filler area;
the height of the filler in the inner filler area is smaller than that of the filler in the inner filler area, and the height of the filler in the inner filler area is smaller than that of the filler in the outer filler area.
2. The fill cooling system of a counter-flow wet natural draft cooling tower of claim 1, wherein:
moisture absorption capacity of air
In the area ofIs the inner filler area;
moisture absorption capacity of air
The area is the filling material area;
moisture absorption capacity of air
The area is the outer filler area;
wherein, WmaxThe maximum value of the air heat and moisture absorption capacity, W, of the packing in the cooling towerminThe minimum value of the heat and moisture absorption capacity of the air of the packing in the cooling tower;
W＝(1+|ΔT|)(1+|Δh|)(1+|Δx|)
delta T is the temperature difference between the two sides of the filler, delta h is the enthalpy difference between the two sides of the filler, and delta x is the moisture content difference between the two sides of the filler.
3. The fill cooling system of a counter-flow wet natural draft cooling tower of claim 1, wherein a fill gauge D of the fill material in said fill material region233mm, 32mm, 31mm, 30mm, 29mm or 28 mm; the height H2 of the filler in the filler region is 1.0m, 1.1m, 1.2m, 1.3m, 1.4m, 1.5m, 1.6m, 1.7m, 1.8m, 1.9m, 2.0m or 2.1 m.
4. The fill cooling system of a counter-flow wet natural draft cooling tower of claim 3, wherein a fill gauge D of fill in said fill area1＝Wavr/Wmin×D2The filling height H of the filling material in the inner filling region1＝Wmin/Wavr×H2Wherein W isavrThe average value of the heat absorption and moisture absorption capacities of the air along the radial direction of the cooling tower is taken as the filling.
5. The fill cooling system of a counter-flow wet natural draft cooling tower of claim 4, wherein the fill in said outer fill areaDistance D between filler pieces of material3＝Wavr/Wmax×D2Height H of the filling in the region of the outer filling1＝Wmax/Wavr×H2。
6. The packing cooling system of a counter-flow wet natural draft cooling tower of any one of claims 1 to 5, wherein the wave shape of the packing is a double ramp, S-wave, ramp or trapezoidal wave.
7. The packed cooling system of a counter-flow wet natural draft cooling tower of any one of claims 1 to 5, wherein the packing in the same region has the same height and the same packing sheet spacing.
8. The fill cooling system of a counter flow wet natural draft cooling tower of any one of claims 1 to 5, wherein said inner fill area is circular in shape and the center of the inner fill area coincides with the center of the fill area.
9. The fill cooling system of a counter-flow wet natural draft cooling tower of claim 8, wherein said outer fill area is annular in shape, and an outside edge of said outer fill area coincides with a tower wall of the cooling tower.
10. The fill cooling system of a counter flow wet natural draft cooling tower of claim 9, wherein said middle fill region is annular in shape and wherein an outer side of said middle fill region coincides with an inner side of said outer fill region and wherein an inner side of said middle fill region coincides with an outer side of said inner fill region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870499.XU CN216245654U (en) | 2021-11-22 | 2021-11-22 | Filler cooling system of counter-flow wet-type natural draft cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122870499.XU CN216245654U (en) | 2021-11-22 | 2021-11-22 | Filler cooling system of counter-flow wet-type natural draft cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216245654U true CN216245654U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122870499.XU Active CN216245654U (en) | 2021-11-22 | 2021-11-22 | Filler cooling system of counter-flow wet-type natural draft cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216245654U (en) |
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2021
- 2021-11-22 CN CN202122870499.XU patent/CN216245654U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220617 Address after: 463000 No. 1318, Xingye Avenue, Yicheng District, Zhumadian City, Henan Province Patentee after: Guoneng Zhumadian Thermal Power Co.,Ltd. Patentee after: Shanghai Branch of Guoneng Longyuan Lantian Energy Saving Technology Co., Ltd Address before: Room 217-7, 1158 Xiehe Road, Changning District, Shanghai 200335 Patentee before: Guoneng Longyuan Lantian Energy Saving Technology Co.,Ltd. Shanghai Branch |
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| TR01 | Transfer of patent right |