CN111895810A - Fan induced draft counter-flow open type cooling tower - Google Patents
Fan induced draft counter-flow open type cooling tower Download PDFInfo
- Publication number
- CN111895810A CN111895810A CN202010937626.0A CN202010937626A CN111895810A CN 111895810 A CN111895810 A CN 111895810A CN 202010937626 A CN202010937626 A CN 202010937626A CN 111895810 A CN111895810 A CN 111895810A
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- Prior art keywords
- water
- cooling tower
- collecting basin
- fans
- distribution pipeline
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/10—Arrangements for suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/04—Distributing or accumulator troughs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/10—Component parts of trickle coolers for feeding gas or vapour
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a draught fan reverse flow open type cooling tower, and belongs to the technical field of cooling towers. Fan convulsions open cooling tower against current, including: the device comprises a tower body, a plurality of EC fans, a water collector, a water distribution pipeline with a water inlet, a plurality of nozzles, a filler structure, a water baffle, an air inlet shutter and a water collecting basin with a water outlet; the tower body is internally provided with a ventilation channel, and the EC fans, the water collector, the water distribution pipeline, the spray heads, the filler structure, the water baffle and the water collecting basin are sequentially arranged in the ventilation channel from top to bottom; the plurality of nozzles are communicated with the water distribution pipeline and are arranged at the bottom of the water distribution pipeline; the air inlet shutter window positioned between the water baffle and the water collecting basin is arranged on the front end surface of the tower body; the invention can effectively cool hot water and has the characteristics of simple structure and high efficiency.
Description
Technical Field
The invention relates to the technical field of cooling towers, in particular to a draught fan reverse flow open type cooling tower.
Background
Cooling towers are important equipment for circulating cooling water systems. The mechanical ventilation cooling tower is widely used in circulating cooling water systems of high-water-consumption industries such as chemical industry, petrifaction, metallurgy, textile, electric power and the like and circulating cooling water systems of civil air conditioners, and can be said to be a place with circulating cooling water. There are mechanical draft cooling towers.
The existing cooling tower has the problems that a water distribution system is easy to block, trickle packing is easy to age, the packing volume is small, moisture backflow is small and the like. In various types of cooling towers in the market, the cooling towers occupy a large proportion, and in addition, the problem of low heat exchange efficiency exists.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing the fan induced draft countercurrent open type cooling tower, can effectively cool hot water, and has the characteristics of simple structure and high efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a draught fan reverse flow open cooling tower, which comprises: the device comprises a tower body, a plurality of EC fans, a water collector, a water distribution pipeline with a water inlet, a plurality of nozzles, a filler structure, a water baffle, an air inlet shutter and a water collecting basin with a water outlet;
a ventilation channel is arranged in the tower body, and the EC fans, the water collector, the water distribution pipeline, the spray heads, the filler structure, the water baffle and the water collecting basin are sequentially arranged in the ventilation channel from top to bottom; the plurality of spray heads are communicated with the water distribution pipeline and are arranged at the bottom of the water distribution pipeline; the air inlet shutter window positioned between the water baffle and the water collecting basin is arranged on the front end surface of the tower body.
Furthermore, the outer wall of the water collecting basin, which is close to the air inlet shutter, is provided with a water replenishing opening.
Further, a drain outlet is arranged at the bottom of the water collecting basin.
Furthermore, the outer wall of the water collecting basin is provided with an overflow port.
Furthermore, a plurality of the EC fans are uniformly distributed at equal intervals.
Further, the number of the EC fans is 9, and the 9 EC fans are respectively embedded at the top of the tower body.
Further, the packing structure is formed by stacking a plurality of packing sheets for containing packing.
Further, the number of the filler pieces is 3.
Compared with the prior art, the invention has the beneficial effects that:
the invention can effectively cool hot water and has the characteristics of simple structure and high efficiency. The EC fan air draft countercurrent open type cooling tower can cool down hot water introduced from the water inlet, and the direct current brushless maintenance-free motor of the intelligent control module is arranged in the EC motor, so that the structure is greatly simplified, the mechanical reliability of the motor operation is greatly enhanced, and the service life is prolonged. The combination of a plurality of EC fans is covered on the top of the tower, increases the utilization ratio of the air outlet of the cooling tower, and the cold air passing through the air inlet shutter is cooled by the heat transfer of the hot water from bottom to top sprayed out from top to bottom with the spray head, and the cooling tower reaches the required cooling air quantity at a low rotating speed, thereby achieving the high energy-saving, high efficiency and low noise operation.
Drawings
FIG. 1 is a schematic structural view of a fan draft counter-flow open cooling tower provided in accordance with an embodiment of the present invention;
fig. 2 is a schematic top view of a fan draft counter flow open cooling tower according to an embodiment of the present invention.
In the figure:
1. a tower body; 2. an EC fan; 3. a water collector; 4. a water distribution pipeline; 5. a spray head; 6. a filler structure; 7. a water baffle; 8. an air inlet shutter; 9. a water collecting basin; 11. a water inlet; 12. a water replenishing port; 13. an overflow port; 14. a sewage draining outlet; 15. and (7) a water outlet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1 and 2, the fan draft reverse flow open cooling tower comprises: the device comprises a tower body 1, a plurality of EC fans 2, a water collector 3, a water distribution pipeline 4 with a water inlet 11, a plurality of nozzles 5, a filler structure 6, a water baffle 7, an air inlet shutter 8 and a water collecting basin 9 with a water outlet 15; a ventilation channel is arranged in the tower body 1, and a plurality of EC fans 2, a water collector 3, a water distribution pipeline 4, a plurality of nozzles 5, a filler structure 6, a water baffle 7 and a water collecting basin 9 are sequentially arranged in the ventilation channel from top to bottom; a plurality of nozzles 5 are communicated with the water distribution pipeline 4 and arranged at the bottom of the water distribution pipeline; an air inlet shutter 8 positioned between the water baffle 7 and the water collecting basin 9 is arranged on the front end surface of the tower body 1.
The invention can effectively cool hot water and has the characteristics of simple structure and high efficiency. The EC fan 2 air draft countercurrent open type cooling tower can cool down hot water introduced from the water inlet 11, and the direct current brushless maintenance-free motor of the intelligent control module is arranged in the EC motor, so that the structure is greatly simplified, the mechanical reliability of the operation of the EC motor is greatly enhanced, and the service life is prolonged. The multiple EC fans 2 are combined and distributed on the tower top, the utilization rate of an air outlet of the cooling tower is increased, cold air and hot water through the air inlet shutter 8 are subjected to heat transfer cooling, the cooling tower can reach required cooling air quantity at a low rotating speed, and the cooling tower is high in energy conservation, high in efficiency and low in noise. When the cooling tower operates, circulating hot water enters the water distribution pipeline 4 from the water inlet 11 of the cooling tower, and is uniformly sprayed on the filler structure 6 filled with the filler through the spray heads 5 on the water distribution pipeline 4, and the spray heads 5 are communicated with the water distribution pipeline 4 at equal intervals, so that the uniform spraying effect is achieved; after the EC fan 2 is started, air is sucked into the tower, so that a negative pressure area is formed in the tower body 1, and cold air is sucked into a ventilation channel in the tower body 1 from the air inlet shutter 8. The water flow vertically falls in the ventilation channel, and the air flow direction and the water flow direction form heat exchange of approximately 180 degrees in the filling area, namely, the air flow is upward and the water flow is downward. The hot water is changed into cooling water through the filler from the filler structure 6, falls onto the water collecting basin 9 and is discharged from the water port. The cold air is changed into hot air after heat exchange, and is discharged by the EC fan 2 after passing through the water collector 3. The water collector 3 can effectively reduce the drift rate of the tower water of the cooling tower and play a role in saving water. The water collector 3 may be made of plastic material. The water baffle 7 is used for guiding water flow which passes through the filler structure 6 and falls into the water collecting basin 9, so that splashing is avoided.
Further, the outer wall of the water collecting basin 9 close to the air inlet shutter 8 is provided with a water replenishing opening 12. The water replenishing port 12 is provided for cleaning and replenishing the water to the water collecting basin 9 and providing contact heat transfer of part of the water with cold air entering the air inlet shutter 8.
Further, a drain outlet 14 is arranged at the bottom of the water collecting basin 9. The sewage draining outlet 14 is arranged for draining sewage, and when the water collecting basin 9 in the tower body 1 needs to be cleaned, sewage in the water collecting basin 9 of the tower is convenient to drain.
Further, the outer wall of the water collecting basin 9 is provided with an overflow port 13. The overflow port 13 is arranged for discharging the accumulated water in time through the overflow port when the accumulated water in the water collecting basin 9 in the tower body 1 is excessive. A water valve, not shown in the drawings, may be installed to control the opening and closing of the overflow 13.
Further, a plurality of EC fans 2 are equidistantly and uniformly distributed. The number of the EC fans 2 is 9, and the 9 EC fans 2 are respectively embedded at the top of the tower body 1. Set up 9 EC fans 2 and can be covered with the top of tower body 1, evenly distributed for cold wind evenly inhales, and inhales efficiently.
Further, the packing structure 6 is formed by stacking a plurality of packing sheets for containing packing. The cooling tower filling can be divided into a plurality of layers, and the layered area is equivalent to multiple water distribution, so that the uneven water distribution can be avoided; each packing sheet has a plurality of mutually engaging concave and convex portions (not shown in the drawings); the concave parts of the filler pieces correspond to the convex parts of the adjacent filler pieces and respectively enclose a plurality of ventilation cavities, and cold air can pass through a water curtain generated between the filler pieces.
Further, the number of the filler pieces is 3. 3 filler pieces are selected to avoid excessive layering of the filler structure 6, so that the cold air conveying efficiency is too low, and the cold air of the 3 filler pieces can be properly controlled to be capable of passing through the water curtain between the filler pieces, so that the heat exchange process time of the cold air and the hot water is proper.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. Fan convulsions open cooling tower against current, its characterized in that including: the device comprises a tower body, a plurality of EC fans, a water collector, a water distribution pipeline with a water inlet, a plurality of nozzles, a filler structure, a water baffle, an air inlet shutter and a water collecting basin with a water outlet;
a ventilation channel is arranged in the tower body, and the EC fans, the water collector, the water distribution pipeline, the spray heads, the filler structure, the water baffle and the water collecting basin are sequentially arranged in the ventilation channel from top to bottom; the plurality of spray heads are communicated with the water distribution pipeline and are arranged at the bottom of the water distribution pipeline; the air inlet shutter window positioned between the water baffle and the water collecting basin is arranged on the front end surface of the tower body.
2. The fan draft counterflow open cooling tower of claim 1, further comprising:
and a water replenishing port is arranged on the outer wall of the water collecting basin, which is close to the air inlet shutter.
3. The fan draft counterflow open cooling tower of claim 1, further comprising:
and a sewage draining outlet is formed in the bottom of the water collecting basin.
4. The fan draft counterflow open cooling tower of claim 3, further comprising:
the outer wall of the water collecting basin is provided with an overflow port.
5. The fan draft counterflow open cooling tower of claim 1, further comprising:
the EC fans are uniformly distributed at equal intervals.
6. The fan draft counterflow open cooling tower of claim 5, further comprising:
the number of the EC fans is 9, and the 9 EC fans are respectively embedded at the top of the tower body.
7. The fan draft counterflow open cooling tower of claim 1, further comprising:
the packing structure is formed by stacking a plurality of packing sheets for containing packing.
8. The fan draft counterflow open cooling tower of claim 7, wherein:
the number of the filler pieces is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937626.0A CN111895810A (en) | 2020-09-07 | 2020-09-07 | Fan induced draft counter-flow open type cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010937626.0A CN111895810A (en) | 2020-09-07 | 2020-09-07 | Fan induced draft counter-flow open type cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN111895810A true CN111895810A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010937626.0A Pending CN111895810A (en) | 2020-09-07 | 2020-09-07 | Fan induced draft counter-flow open type cooling tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556451A (en) * | 2020-12-03 | 2021-03-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Natural ventilation cooling tower and ventilation method thereof |
-
2020
- 2020-09-07 CN CN202010937626.0A patent/CN111895810A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556451A (en) * | 2020-12-03 | 2021-03-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Natural ventilation cooling tower and ventilation method thereof |
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