CN220288280U - High-efficiency energy-saving mechanical ventilation cooling tower - Google Patents
High-efficiency energy-saving mechanical ventilation cooling tower Download PDFInfo
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- CN220288280U CN220288280U CN202321083917.3U CN202321083917U CN220288280U CN 220288280 U CN220288280 U CN 220288280U CN 202321083917 U CN202321083917 U CN 202321083917U CN 220288280 U CN220288280 U CN 220288280U
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- 238000001816 cooling Methods 0.000 title claims abstract description 81
- 238000005399 mechanical ventilation Methods 0.000 title claims abstract description 51
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a high-efficiency energy-saving mechanical ventilation cooling tower, which comprises a tower body arranged on a tower foundation and an internal structure in the tower body, wherein an air inlet is arranged at the bottom of the tower body, an air outlet is arranged at the top of the tower body, the internal structure comprises a water distribution system, a filler bracket, a filler, a dehydrator and a water collecting tank, a fan is arranged in the air outlet, a section of air duct is connected to the air outlet of the mechanical ventilation cooling tower, the air duct extends from the tower foundation to the air duct, and an air duct steel structure frame is arranged along the circumferential direction of the outer wall of the air duct to the top of the air duct to form a steel structure support. The utility model effectively improves the ventilation quantity of the cooling tower by using the additionally arranged air duct, improves the cooling capacity of the mechanical ventilation cooling tower, reduces the power consumption of the mechanical ventilation cooling tower, reduces the operation cost and improves the operation economy and the operation mode flexibility of the cooling tower.
Description
Technical Field
The present utility model relates to cooling towers, and more particularly to mechanically ventilated cooling towers of wide use.
Background
The mechanical ventilation cooling tower is widely applied to the industries of energy, steel, petrifaction, metallurgy, large-scale commercial supertechnology and the like, and is used for carrying out heat exchange between cooling water carrying waste heat and humid air in the tower, so that the waste heat is transmitted to the humid air and is dispersed into the atmosphere.
The mechanical ventilation cooling tower structure is small and compact, the structure of the mechanical ventilation cooling tower is composed of a concrete frame, a steel structure or a glass fiber reinforced plastic shell, a bottom air inlet is arranged on the side surface or the periphery of the frame, the mechanical ventilation cooling internal structure is mainly composed of a water distribution system, a filler bracket, water spraying filler, a splashing device, a water remover and a water collecting tank, the interior of the tower is divided into three heat exchange areas of a rain area, a filler area and a spraying area, an electric exhaust fan is arranged on the upper portion of the mechanical ventilation cooling tower, air outside the tower is pumped into the tower from the air inlet at the bottom of the tower mainly by virtue of the exhaust effect of the fan during transportation, cooling air sequentially flows through the rain area, the water spraying filler area and the three heat exchange areas of the spraying area from bottom to top, mass transfer and heat transfer are carried out between the cooling air and high-temperature cooling water flowing from top to bottom, the temperature of the high-temperature cooling water is reduced, the cooling air after heat absorption flows upwards and is discharged into the atmosphere from the outlet at the top of the cooling tower, the high-temperature cooling water drops into the bottom of the cooling tower, and the cooling function of the mechanical ventilation cooling tower is realized. The forced ventilation of the fan is adopted, so that the cooling water quantity processed by the forced ventilation cooling tower is relatively high. The disadvantage is that the mechanical ventilation cooling tower runs completely by consuming electric energy, the power consumption is large, the running cost is very high, and the running cost is higher and higher along with the continuous rise of the electricity price.
In order to reduce the problems of high power consumption and high running cost of the mechanical ventilation cooling towers, in recent years, a plurality of mechanical ventilation cooling towers change an original constant-speed motor into a variable-frequency speed-regulating motor, and the average power consumption of the mechanical ventilation cooling towers is reduced to a certain extent throughout the year, so that the variable-frequency speed-regulating power saving can be mainly realized by the variable-frequency motor along with the change of the ambient temperature and the change of the cooling water quantity. However, the forced ventilation cooling is realized by the mechanical ventilation cooling tower by consuming electric energy, and the essence of high power consumption and high operation cost is not changed.
Disclosure of Invention
The utility model provides a high-efficiency energy-saving mechanical ventilation cooling tower, which is characterized in that an air duct is additionally arranged at the outlet of the mechanical ventilation cooling tower, and the ventilation capacity formed by the density difference of air inside and outside the air duct is utilized to increase the ventilation quantity of the mechanical ventilation cooling tower, so that the power consumption of a fan is reduced, the operation cost of the cooling tower is reduced, and the operation economy of the cooling tower is improved.
The utility model adopts the following technical scheme for solving the technical problems:
the utility model relates to a high-efficiency energy-saving mechanical ventilation cooling tower, which comprises a tower body arranged on a tower foundation and an internal structure in the tower body, wherein an air inlet is positioned at the bottom of the tower body, an air outlet is positioned at the top of the tower body, the internal structure comprises a water distribution system, a filler bracket, fillers, a dehydrator and a water collecting tank, and a fan is arranged in the air outlet, and is characterized in that: and a section of air duct is connected to the air outlet of the mechanical ventilation cooling tower.
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the ventilation total amount G of the cooling tower is set as follows by setting the height and the diameter of the air duct:
G＝G blower fan +G Air duct And: g Air duct ＝(5％-50％)G
G Blower fan The mechanical ventilation quantity is formed by the operation of the fan; g Air duct Is the natural ventilation quantity formed by the wind tube (11).
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the height of the air duct is set to be 5-100m.
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the air duct is a cylinder, a rectangular cylinder or a hyperbolic cylinder; the air duct is a metal component or a nonmetal component or a concrete structure.
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the top that extends to the dryer from the tower foundation sets up dryer steel construction frame and forms steel construction support.
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the steel structure frame is arranged on the inner wall of the air duct along the circumferential direction of the air duct or on the outer wall of the air duct.
The high-efficiency energy-saving mechanical ventilation cooling tower is also characterized in that: the side surface of the air inlet positioned at the bottom of the tower body forms a side surface air inlet mode; or the air inlet is positioned at the whole periphery of the bottom of the tower body to form a whole-periphery air inlet mode.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model greatly reduces the running cost of the mechanical ventilation cooling tower.
Through add the dryer at the mechanical ventilation cooling tower outlet, utilize the updraft capability that the difference of the inside and outside air density of dryer formed, increase mechanical ventilation cooling tower ventilation volume to greatly reduced fan consumption reduces cooling tower running cost, improves its operational economy.
Such as: one set of cooling water quantity for treatment per hour is 4650m 3 The mechanical ventilation cooling tower of/h, fan matched motor power 185KW, year operating time 7000 hours, industry electricity price 0.85 yuan/degree, annual electricity consumption cost is:
annual power consumption cost=185×0.85×7000= 1100750 yuan
By implementing the utility model, the air draft amount formed by the air duct accounts for 30% -45% of the total ventilation amount, the power of the motor is correspondingly reduced to 101.75KW-129.5KW, and the annual power consumption cost is as follows under the condition of unchanged other conditions:
when the motor power is reduced to 101.75KW, the annual power consumption cost=101.75×0.85×7000= 605412.5 yuan;
when the motor power is reduced to 129.5KW, the annual power consumption cost=129.5×0.85×7000= 770525 yuan.
The calculation results show that the energy-saving effect is very remarkable by adopting the utility model.
2. The utility model increases the selectivity for users.
The ratio of the mechanical ventilation quantity to the natural ventilation quantity can be flexibly selected according to the size of the cooling water quantity, the cooling effect, the economical efficiency of the operation of the cooling tower and the investment amount required by a user so as to achieve the aim.
3. The utility model has flexible operation mode.
By adopting the cooling tower, the hot season wind machine runs at full speed, the ambient temperature in spring and autumn is reduced, the wind machine can run at low speed, and the wind machine can be shut down when entering winter, so that natural cooling is performed by completely depending on natural ventilation quantity formed by the wind barrel, the flexibility of the running mode of the cooling tower is improved, and the running cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
reference numerals in the drawings: the device comprises a tower body 1, a fan 2, a water remover 3, a water distribution system 4, a filler 5, a filler bracket 6, a water pump 7, an air inlet 8, a water collecting tank 9, a steel structure frame 10 and an air duct 11.
Detailed Description
Referring to fig. 1, the mechanical ventilation cooling tower in this embodiment includes a tower body 1 disposed on a tower foundation and an internal structure in the tower body 1, an air inlet 8 is disposed at the bottom of the tower body 1, an air outlet is disposed at the top of the tower body, the internal structure includes a water distribution system 4, a filler bracket 6, a filler 5 disposed on the filler bracket 6, a water trap 3 disposed above the water distribution system, and a water collecting tank 9 disposed below the tower body, and a fan 2 is disposed in the air outlet.
In the embodiment, the high-efficiency energy-saving mechanical ventilation cooling tower is characterized in that a section of air duct 11 is connected to an air outlet of the mechanical ventilation cooling tower, and a steel structure frame 10 is arranged at the top part extending from a tower foundation to the air duct 11 to form a steel structure support.
The high-temperature cooling water is uniformly sprayed downwards onto the filler 5 through the water distribution system 4, cooled by the spraying area, the filler area and the rain area, falls into the water collecting tank 9 and is pumped out by the water pump 7; under the suction effect of the fan 2 and the air duct 11, cooling air enters the tower through the air inlet 8 and flows upwards, the cooling air flowing upwards and the hot cooling water flowing downwards conduct mass transfer heat transfer and heat exchange, the cooling air absorbs the heat of the cooling water and then is discharged from the outlet at the top of the air duct, and the hot cooling water flows into the water collecting tank 9 after being cooled, so that cooling is realized.
In a specific implementation, the corresponding structure arrangement also includes:
the total ventilation amount G of the cooling tower is set as follows by setting the height and diameter of the air duct 11:
G＝G blower fan +G Air duct And: g Air duct ＝(5％-50％)G
G Blower fan The mechanical ventilation quantity is formed by the operation of the fan; g Air duct Is the natural ventilation quantity formed by the wind tube (11).
G according to the mechanical ventilation principle of the cooling tower Blower fan Calculated from formula (1):
g according to the natural ventilation principle of the cooling tower Air duct Calculated from formula (2):
n represents the power of a motor matched with the fan;
η 1 representing the mechanical efficiency of the blower;
η 2 representing fan efficiency corresponding to fan blade mounting angles;
h represents the working pressure of the fan;
b represents the safety factor of the fan, b=1.15-1.20;
d is the diameter of the tower body at the 1/2 height of the packing;
he represents the height of the air duct and refers to the height from the middle point of the filling material to the top of the air duct;
ρ 1 representing the air density outside the tower body; ρ 2 Representing the air density above the packing inside the column;
ζ represents a resistance coefficient;
ρ m represents the average air density in the tower body ρ m ＝(ρ 1 +ρ 2 )/2
In order to obtain the air draft effect of the air duct and consider the safety height of the air duct, the height of the air duct is set to be 5-100m.
According to the natural ventilation principle: the air extraction quantity formed by the air duct is related to the diameter of the air duct and the height of the air duct, and the larger the diameter of the air duct and/or the higher the height of the air duct, the larger the air extraction quantity formed by the air duct; the diameter of the air duct and the height of the air duct are properly set to obtain the set natural ventilation quantity, and the air duct 11 in the embodiment shown in fig. 1 is a cylindrical barrel, and the diameter of the cylindrical barrel is the same as the diameter of the air outlet of the mechanical ventilation cooling tower.
Corresponding structure arrangement in the specific implementation also comprises:
the wind cylinder 11 can also be a rectangular column cylinder or a hyperbolic cylinder; the wind cylinder 11 can be a metal component, a nonmetallic component or a concrete structure; the steel structure frame 11 is arranged on the inner wall of the air duct 11 along the circumferential direction of the air duct or on the outer wall of the air duct 11; the side surface of the air inlet 8 positioned at the bottom of the tower body 1 forms a side air inlet form, or the air inlet 8 is positioned at the whole periphery of the bottom of the tower body 1 and forms a whole periphery air inlet form.
According to the utility model, the air duct is additionally arranged at the outlet of the mechanical ventilation cooling tower, and the ventilation capacity formed by the difference of the density of air inside and outside the air duct is utilized, so that the ventilation quantity of the cooling tower is increased, the power consumption of a fan is reduced, the operation cost of the cooling tower is reduced, and the operation economy of the cooling tower is improved; the utility model can be directly applied to the new tower design of the mechanical ventilation cooling tower, and can also be implemented by adding an air duct at the outlet of the traditional mechanical ventilation cooling tower and modifying equipment.
Claims (7)
1. The utility model provides a high-efficient energy-conserving smart ventilation cooling tower, smart ventilation cooling tower is including setting up the tower body on the tower foundation and the inner structure in the tower body, and the air intake is located the bottom of tower body, and the air outlet is located the tower body top, and inner structure includes water distribution system, filler bracket, filler, dehydrator and water collecting reservoir, sets up the fan, characterized by in the air outlet: and a section of air duct (11) is connected to the air outlet of the mechanical ventilation cooling tower.
2. The energy efficient mechanical ventilation cooling tower of claim 1, wherein: the ventilation total amount G of the cooling tower is set as follows by setting the height and the diameter of the air duct (11):
G＝G blower fan +G Air duct And: g Air duct ＝(5％-50％)G
G Blower fan The mechanical ventilation quantity is formed by the operation of the fan; g Air duct Is the natural ventilation quantity formed by the wind tube (11).
3. The energy efficient mechanical ventilation cooling tower of claim 1, wherein: the height of the air duct (11) is 5-100m.
4. The energy efficient mechanical ventilation cooling tower of claim 1, wherein: the air duct (11) is a cylindrical drum, a rectangular cylindrical drum or a hyperbolic drum; the air duct (11) is a metal component or a nonmetal component or a concrete structure.
5. The energy efficient mechanical ventilation cooling tower of claim 1, wherein: a wind tube steel structure frame (10) is arranged at the top part extending from the tower foundation to the wind tube (11) to form a steel structure support.
6. The energy efficient mechanical ventilation cooling tower of claim 5, wherein: the steel structure frame (10) is arranged on the inner wall of the air duct (11) along the circumferential direction of the air duct or on the outer wall of the air duct (11).
7. The energy efficient mechanical ventilation cooling tower of claim 1, wherein: the side surface of the air inlet (8) positioned at the bottom of the tower body (1) forms a side surface air inlet mode; or the air inlet (8) is positioned at the whole periphery of the bottom of the tower body (1) to form a whole-periphery air inlet mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321083917.3U CN220288280U (en) | 2023-05-08 | 2023-05-08 | High-efficiency energy-saving mechanical ventilation cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321083917.3U CN220288280U (en) | 2023-05-08 | 2023-05-08 | High-efficiency energy-saving mechanical ventilation cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288280U true CN220288280U (en) | 2024-01-02 |
Family
ID=89333278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321083917.3U Active CN220288280U (en) | 2023-05-08 | 2023-05-08 | High-efficiency energy-saving mechanical ventilation cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288280U (en) |
-
2023
- 2023-05-08 CN CN202321083917.3U patent/CN220288280U/en active Active
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