CN220750863U - Multistage cooling system - Google Patents
Multistage cooling system Download PDFInfo
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- CN220750863U CN220750863U CN202322487717.0U CN202322487717U CN220750863U CN 220750863 U CN220750863 U CN 220750863U CN 202322487717 U CN202322487717 U CN 202322487717U CN 220750863 U CN220750863 U CN 220750863U
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- 238000001816 cooling Methods 0.000 title claims abstract description 179
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 239000000945 filler Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of cooling towers, and particularly relates to a multistage cooling system which comprises a cooling tower body, wherein a water inlet and a water outlet are formed in the bottom of the cooling tower body, and a multistage cooling device is arranged in the cooling tower body. The utility model has simple structure, improves the cooling efficiency by carrying out multistage cooling through the convection contact of air and hot water, is economical and practical, and is convenient to clean and overhaul.
Description
Technical Field
The utility model belongs to the technical field of cooling towers, and particularly relates to a multi-stage cooling system.
Background
The cooling tower is an indispensable device for large-scale factories, thermal power plants and the like, and utilizes contact of hot water and air in a cooling zone tower to exchange heat between cooling water carrying waste heat and air in the tower, so that the waste heat is transmitted to the air and is dispersed into the atmosphere, thereby reducing the temperature of the hot water, dispersing waste heat generated in industry or refrigeration air conditioning through evaporation, and manufacturing the cooling water for recycling.
The existing cooling towers can be divided into natural ventilation cooling towers according to ventilation modes; a mechanical draft cooling tower and a hybrid draft cooling tower; the cooling tower can be divided into a counter-flow cooling tower according to the flowing directions of hot water and air; cross-flow (direct-alternating-flow) cooling towers and mixed-flow cooling towers. The cooling tower disclosed in patent 202310423093.8 mainly comprises a cooling tower body, a water distribution device, a thin pipe and the like, wherein hot water to be cooled in the thin pipe flows from bottom to top, and heat exchange is performed between the hot water to be cooled in the thin pipe and the cooling water flowing from top to bottom in the flowing process, so that the hot water to be cooled in the thin pipe is cooled.
However, the existing cooling tower generally performs primary cooling by only contacting air and water, and has low cooling efficiency and large occupied area.
Disclosure of Invention
The utility model aims to provide a multistage cooling system so as to solve the problems that the prior cooling tower provided in the background art is complex in internal structure, only performs one-stage cooling and is low in cooling efficiency.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the multistage cooling system comprises a cooling tower body, wherein a water inlet and a water outlet are formed in the bottom of the cooling tower body, and a multistage cooling device is arranged in the cooling tower body;
the cooling device comprises a countercurrent water delivery tower and an air cooling overflow pool, wherein the countercurrent water delivery tower is arranged at the bottom of the cooling tower body, the bottom of the countercurrent water delivery tower is communicated with a water inlet of the cooling tower body, and the top of the countercurrent water delivery tower is provided with an overflow water outlet;
the air cooling overflow pool is arranged at the top of the countercurrent water delivery tower and is communicated with an overflow water outlet of the countercurrent water delivery tower, and the air cooling overflow pool is communicated with a water outlet of the cooling tower body.
Further, a water conveying pipeline is arranged in the countercurrent water conveying tower, the water inlet end of the water conveying pipeline is communicated with the water inlet of the cooling tower body, and the water outlet end of the water conveying pipeline is communicated with the overflow water outlet of the countercurrent water conveying tower.
Further, the water delivery pipeline is spirally arranged along the countercurrent water delivery tower.
Further, the top of the air-cooled overflow pool is open, and the air-cooled overflow pool is circumferentially arranged along the countercurrent water delivery tower.
Further, an exhaust system is arranged at the top of the air-cooled overflow pool, and an air inlet is arranged at the bottom of the cooling tower body.
Further, the exhaust system comprises an exhaust pump, a temperature sensor and a controller, wherein the exhaust pump is electrically connected with the controller, and the temperature sensor is electrically connected with the controller.
Further, cooling filler is filled between the cooling tower body and the countercurrent water delivery tower.
Further, a water storage tank is arranged outside the cooling tower body and is communicated with a water outlet of the cooling tower body, and the top of the water storage tank is open.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a multistage cooling system, which comprises a cooling tower body, wherein a multistage cooling device is arranged in the cooling tower body, and concretely comprises a countercurrent water delivery tower and an air cooling overflow pool, namely a secondary cooling device is arranged in the cooling tower body, wherein the countercurrent water delivery tower is a first-stage cooling device and the air cooling overflow pool is a second-stage cooling device; hot water entering the cooling tower body enters a countercurrent water delivery tower from bottom to top, the countercurrent water delivery tower cools the hot water for the first time, and then enters an air cooling overflow pool from the top of the countercurrent water delivery tower for the second-stage cooling. According to the utility model, two-stage cooling is carried out through convection contact of air and hot water, so that the cooling efficiency is improved, and the device is economical and practical and is convenient to clean and overhaul.
Drawings
FIG. 1 is a schematic view of the structure of the cooling tower of the present utility model;
FIG. 2 is a schematic diagram of a system architecture according to the present utility model;
wherein, 1-cooling the tower body of the tower; 2-countercurrent water delivery tower; 3-an air-cooling overflow pool; 4-an exhaust pump; 5-cooling the filler; and 6, a water storage pool.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, but the present utility model is not limited to the embodiments described below.
Examples
Referring to fig. 1, the present embodiment provides a multi-stage cooling system, which includes a cooling tower body 1, wherein a water inlet and a water outlet are provided at the bottom of the cooling tower body 1, and an air inlet is provided at the bottom of the cooling tower body 1 along the tower wall in a surrounding manner; a manhole is arranged at the side part of the cooling tower body 1 and is used for cleaning and overhauling the inside of the cooling tower body 1; the cooling tower body 1 is internally provided with a multi-stage cooling device.
Specifically, four-stage cooling devices are arranged in the cooling tower body 1, namely a first-stage cooling device, a second-stage cooling device, a third-stage cooling device and a fourth-stage cooling device.
A countercurrent water delivery tower 2 is arranged as a first-stage cooling device; the countercurrent water delivery tower 2 is arranged at the bottom of the cooling tower body 1, the bottom of the countercurrent water delivery tower 2 is communicated with the water inlet of the cooling tower body 1, the top of the countercurrent water delivery tower 2 is provided with an overflow water outlet, a water delivery pipeline is arranged in the countercurrent water delivery tower 2, the water inlet end of the water delivery pipeline is communicated with the water inlet of the cooling tower body 1, the water outlet end of the water delivery pipeline is communicated with the overflow water outlet of the countercurrent water delivery tower 2, namely, hot water flows along the countercurrent water delivery tower 2 from bottom to top in the water delivery pipeline.
The countercurrent water delivery tower 2 enables hot water entering the cooling tower body 1 to flow from bottom to top, the first-stage cooling device is used for prolonging the flow path of the hot water to achieve the heat dissipation purpose, and in order to further prolong the flow path of the hot water, the countercurrent water delivery tower 2 is preferably in a "()" or ") (" type, the inner surface area of the countercurrent water delivery tower 2 is increased, and the water delivery pipeline is spirally arranged along the countercurrent water delivery tower 2, so that the length of pipeline laying is prolonged, the flow path of the hot water in the countercurrent water delivery tower is further prolonged, and the heat dissipation efficiency is improved.
The top of the countercurrent water conveying tower 2 is provided with an air cooling overflow pool 3, the air cooling overflow pool 3 is used as a second-stage cooling device, the air cooling overflow pool 3 is arranged at the top of the countercurrent water conveying tower 2, the air cooling overflow pool 3 is communicated with an overflow water outlet of the countercurrent water conveying tower 2, the air cooling overflow pool 3 surrounds the circumference of the countercurrent water conveying tower 2, hot water output from the top of the countercurrent water conveying tower 2 is temporarily stored in the air cooling overflow pool 3 for heat dissipation, and the top of the air cooling overflow pool is open, water in the air cooling overflow pool 3 falls into between the cooling tower body 1 and the countercurrent water conveying tower 2 in an overflow mode, and flows in opposite directions with air for cooling.
An exhaust system is arranged at the top of the air-cooling overflow pool 3, the exhaust system comprises an exhaust pump 4, and the exhaust pump 4 is used as a third-stage cooling device, preferably an axial flow fan, and is used for forcedly inducing the ventilation in the cooling tower body 1; the exhaust pump 4 is arranged at the top of the cooling tower body 1, and an air inlet is arranged at the bottom of the cooling tower body 1; because the water in the air-cooled overflow tank 3 falls into the cooling tower body 1 downwards in an overflow manner, in order to realize convection of hot water and air and increase cooling efficiency, an air outlet is arranged at the top of the cooling tower body 1, the bottom of the cooling tower body 1 is an air inlet, the air suction pump 4 sends air entering from the bottom of the cooling tower body 1 to the top of the cooling tower body 1 for discharging, and the upward flowing air and the falling hot water flow in opposite directions for cooling, namely the third cooling and cooling of the hot water are realized; the hot water is cooled in three stages, so that the cooling efficiency is improved.
Further, the air draft system further comprises a temperature sensor and a controller, the air draft pump is electrically connected with the controller, the temperature sensor detects the temperature in the cooling tower and sends a temperature signal to the controller, and the controller controls the power of the air draft pump so as to control the cooling power of the air draft system.
The air outlet of the cooling tower body 1 is provided with a shutter for average airflow, meanwhile, the top of the cooling tower body 1 is provided with a water receiver, the water receiver is arranged below the air suction pump 4 and is used for recovering water drops taken away by the airflow, and the water consumption in the tower is reduced.
A cooling filler 5 is filled between the cooling tower body 1 and the countercurrent water delivery tower 2, the air cooling overflow pool 3 is communicated with a water outlet of the cooling tower body 1 through the cooling filler 5, and the cooling filler 5 is used as a fourth-stage cooling device; the hot water overflowed from the air-cooled overflow pool 3 is contacted with the cooling filler 5 for fourth cooling, and the cooling filler 5 provides the hot water with the heat exchange area as large as possible; the cooling filler 5 is preferably granite, which has a higher heat capacity than general stone, so that its heat conductivity is also higher, and at the same time, the water absorption is poor, resulting in less loss of hot water, and the cost of mass use is low.
Further preferably, referring to fig. 2, a water storage tank 6 is arranged outside the cooling tower body 1, the water storage tank 6 is used as a fifth-stage cooling device, the water storage tank 6 is communicated with a water outlet of the cooling tower body 1, the top of the water storage tank 6 is open, the water storage tank 6 is naturally cooled in an open mode, a water outlet pipe is arranged on the water storage tank 6, a water conveying pump is arranged on the water outlet pipe, and the water outlet pipe is connected with system equipment to provide cooling water for the system equipment.
The multistage cooling system of the utility model has the following working principle: hot water flows upwards and reversely into the countercurrent water conveying tower 2 from the bottom of the cooling tower body 1 through a water conveying pipe, and the hot water rising to the top of the countercurrent water conveying tower 2 enters the air cooling overflow pool 3, and overflows after the water in the air cooling overflow pool 3 is fully accumulated; the hot water after the secondary cooling is carried out by the countercurrent water delivery tower 2 and the air-cooled overflow pool 3 falls under the action of gravity; the air suction pump 4 enables air entering from the bottom of the cooling tower body 1 to flow upwards and convect with falling hot water for cooling, so that third-stage cooling of the hot water is realized; when the hot water falls to the cooling filler 5, heat exchange is carried out between the hot water and the cooling filler 5 subjected to air cooling, the fourth-stage cooling is further carried out, and then the hot water enters the water storage tank 6 through the water outlet at the bottom of the cooling tower body 1 for natural cooling, so that the fifth-stage cooling of the hot water is realized, and finally, cooling water is provided for system equipment through a water conveying pump.
In conclusion, the utility model has the advantages of simple internal structure, multistage cooling by convection contact of air and hot water, improved cooling efficiency, economy, practicability and convenience in cleaning and maintenance.
Claims (8)
1. A multi-stage cooling system, characterized by: the cooling tower comprises a cooling tower body (1), wherein a water inlet and a water outlet are formed in the bottom of the cooling tower body (1), and a multi-stage cooling device is arranged in the cooling tower body (1);
the multi-stage cooling device comprises a countercurrent water delivery tower (2) and an air-cooling overflow pool (3), wherein the countercurrent water delivery tower (2) is arranged at the bottom of the cooling tower body (1), the bottom of the countercurrent water delivery tower (2) is communicated with a water inlet of the cooling tower body (1), and an overflow water outlet is arranged at the top of the countercurrent water delivery tower (2);
the air cooling overflow pool (3) is arranged at the top of the countercurrent water delivery tower (2), the air cooling overflow pool (3) is communicated with an overflow water outlet of the countercurrent water delivery tower (2), and the air cooling overflow pool (3) is communicated with a water outlet of the cooling tower body (1).
2. The multi-stage cooling system of claim 1, wherein: the countercurrent water delivery tower (2) is internally provided with a water delivery pipeline, the water inlet end of the water delivery pipeline is communicated with the water inlet of the cooling tower body (1), and the water outlet end of the water delivery pipeline is communicated with the overflow water outlet of the countercurrent water delivery tower (2).
3. The multi-stage cooling system of claim 2, wherein: the water delivery pipeline is spirally arranged along the countercurrent water delivery tower (2).
4. A multi-stage cooling system according to claim 3, wherein: the top of the air-cooling overflow pool (3) is open, and the air-cooling overflow pool (3) is circumferentially arranged along the countercurrent water delivery tower (2).
5. The multi-stage cooling system of claim 4, wherein: an air draft system is arranged at the top of the air cooling overflow pool (3), and an air inlet is arranged at the bottom of the cooling tower body (1).
6. The multi-stage cooling system of claim 5, wherein: the air draft system comprises an air draft pump (4), a temperature sensor and a controller, wherein the air draft pump (4) is electrically connected with the controller, and the temperature sensor is electrically connected with the controller.
7. The multi-stage cooling system of claim 6, wherein: and a cooling filler (5) is filled between the cooling tower body (1) and the countercurrent water delivery tower (2).
8. The multi-stage cooling system according to any one of claims 1 to 7, wherein: the outside of cooling tower body (1) sets up reservoir (6), the delivery port intercommunication of reservoir (6) and cooling tower body (1), open at reservoir (6) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322487717.0U CN220750863U (en) | 2023-09-13 | 2023-09-13 | Multistage cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322487717.0U CN220750863U (en) | 2023-09-13 | 2023-09-13 | Multistage cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220750863U true CN220750863U (en) | 2024-04-09 |
Family
ID=90565251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322487717.0U Active CN220750863U (en) | 2023-09-13 | 2023-09-13 | Multistage cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220750863U (en) |
-
2023
- 2023-09-13 CN CN202322487717.0U patent/CN220750863U/en active Active
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