CN-122015528-A - Efficient flue gas waste heat recovery cooling device

Abstract

The application provides high-efficiency flue gas waste heat recovery cooling equipment which comprises a flue gas heat exchange system, a liquid cooling circulation system and a controller, wherein the flue gas heat exchange system comprises a shell, a heat exchanger, a flow guide structure and a heat dissipation enhancing structure, the heat exchanger is arranged in the shell and used for enabling high-temperature flue gas to flow through, the flow guide structure is arranged in the heat exchanger and used for prolonging a flue gas flow path, the heat dissipation enhancing structure is arranged on the outer surface of the heat exchanger, the liquid cooling circulation system comprises a water tank and a circulation pump, the water tank is used for storing cooling liquid, the circulation pump is used for driving the cooling liquid to circulate, the controller is provided with a temperature sensor and is electrically connected with the circulation pump, the temperature sensor is used for detecting the temperature of the cooling liquid in the liquid cooling circulation system, and the controller is configured to dynamically adjust the running state of the circulation pump according to the detected temperature. This high-efficient flue gas waste heat recovery cooling arrangement can solve the problem that traditional equipment heat exchange efficiency is not enough, the cooling effect is unstable, realizes waste heat recovery and flue gas cooling's high-efficient synchronous, is showing the operating stability who promotes energy recovery and system.

Inventors

• YOU LIANG
• XIE HUANBIAO
• LIU YUQIN
• XUE NING
• JI HAIMIN
• LEI YU
• WANG BO
• ZHENG DI
• SHI LILONG
• JI JIEHONG
• ZHANG ZHIXIANG
• XU DANGQI
• CHEN SHAOHUA
• XU XINGGUO
• WU ZHENHAI
• ZHANG JIFANG
• DU YANCHENG

Assignees

• 华能汕头海门发电有限责任公司
• 西安热工研究院有限公司

Dates

Publication Date

20260512

Application Date

20260312

Claims (10)

1. 1. The utility model provides a high-efficient flue gas waste heat recovery cooling arrangement which characterized in that includes: The flue gas heat exchange system comprises a shell, a heat exchanger, a flow guiding structure and a heat dissipation enhancing structure, wherein the heat exchanger is arranged in the shell and is used for allowing high-temperature flue gas to flow through; The liquid cooling circulation system comprises a water tank for storing cooling liquid and a circulation pump for driving the cooling liquid to circulate, wherein the water tank is communicated with the inner cavity of the shell through a pipeline, so that the cooling liquid can flow through and submerge the heat exchanger to absorb the waste heat of flue gas; And the controller is provided with a temperature sensor and is electrically connected with the circulating pump, the temperature sensor is used for detecting the temperature of the cooling liquid in the liquid cooling circulating system, and the controller is configured to dynamically adjust the running state of the circulating pump according to the detected temperature.
2. 2. The efficient flue gas waste heat recovery cooling apparatus according to claim 1, wherein an inner wall of the housing is provided with a heat insulating layer.
3. 3. The efficient flue gas waste heat recovery cooling apparatus according to claim 1, wherein a detachable top cover is provided at a top of the housing.
4. 4. The efficient flue gas waste heat recovery cooling apparatus according to claim 1, wherein the heat radiation enhancing structure includes a plurality of first heat radiation fins fixed to an outer wall of the heat exchange tube.
5. 5. The efficient flue gas waste heat recovery cooling device according to claim 1, wherein the flow guiding structure comprises a center rod and a plurality of flow blocking plates sleeved on the center rod, and the flow blocking plates are provided with first flow guiding holes for flue gas to pass through.
6. 6. The efficient flue gas waste heat recovery cooling device according to claim 5, wherein a guide cover is arranged between two adjacent spoilers, the guide cover is in a conical structure, and a second guide hole is arranged on the side wall of the guide cover.
7. 7. The efficient flue gas waste heat recovery cooling device according to claim 1, wherein a water inlet of the circulating pump is connected with the water tank through a water outlet pipe, a water outlet is connected with the shell through a water inlet pipe, and the shell is connected with the water tank through a return pipe.
8. 8. The efficient flue gas waste heat recovery cooling device according to claim 7, wherein a first flow regulating valve is arranged on the water inlet pipe, and a second flow regulating valve is arranged on the return pipe.
9. 9. The efficient flue gas waste heat recovery cooling apparatus according to claim 1, wherein the liquid cooling circulation system further comprises an auxiliary heat radiation system, the auxiliary heat radiation system comprises a second heat radiation fin arranged on the outer wall of the water tank and a heat radiation fan for forcedly cooling the second heat radiation fin, and the heat radiation fan is electrically connected with and controlled by the controller.
10. 10. The efficient flue gas waste heat recovery cooling apparatus according to claim 1, wherein the controller is provided with a display screen for displaying temperature and operation state and operation buttons for parameter presetting.

Description

Efficient flue gas waste heat recovery cooling device Technical Field The application relates to the technical field of flue gas waste heat recovery, in particular to efficient flue gas waste heat recovery cooling equipment. Background The high-temperature flue gas continuously generated in industrial production carries a large amount of waste heat, if the waste heat is directly discharged, the energy waste is caused, the heat pollution is further aggravated, and the subsequent environmental protection equipment is damaged. The existing flue gas waste heat recovery cooling equipment has the common problems that the heat exchange efficiency is low, the rapid cooling of flue gas and the full recovery of waste heat are difficult to synchronously realize, the matching property of a cooling system and a heat exchange assembly is poor, the energy recovery is insufficient, the cooling effect is unstable, the accurate control and auxiliary heat dissipation structure is lacking, and the running state cannot be dynamically adjusted according to working conditions. Disclosure of Invention The embodiment of the application at least provides high-efficiency flue gas waste heat recovery cooling equipment, which can solve the problems of insufficient heat exchange efficiency and unstable cooling effect of the traditional equipment, realize high-efficiency synchronization of waste heat recovery and flue gas cooling, and remarkably improve the energy recovery rate and the operation stability of a system. The embodiment of the application provides high-efficiency flue gas waste heat recovery cooling equipment, which comprises the following components: The flue gas heat exchange system comprises a shell, a heat exchanger, a flow guiding structure and a heat dissipation enhancing structure, wherein the heat exchanger is arranged in the shell and is used for allowing high-temperature flue gas to flow through; The liquid cooling circulation system comprises a water tank for storing cooling liquid and a circulation pump for driving the cooling liquid to circulate, wherein the water tank is communicated with the inner cavity of the shell through a pipeline, so that the cooling liquid can flow through and submerge the heat exchanger to absorb the waste heat of flue gas; And the controller is provided with a temperature sensor and is electrically connected with the circulating pump, the temperature sensor is used for detecting the temperature of the cooling liquid in the liquid cooling circulating system, and the controller is configured to dynamically adjust the running state of the circulating pump according to the detected temperature. In an alternative embodiment, the inner wall of the housing is provided with a heat insulating layer. In an alternative embodiment, the top of the housing is provided with a removable top cover. In an alternative embodiment, the heat dissipation enhancing structure includes a plurality of first heat dissipation fins fixed to an outer wall of the heat exchange tube. In an alternative embodiment, the flow guiding structure comprises a central rod and a plurality of spoilers sleeved on the central rod, and a first flow guiding hole for flue gas to pass through is formed in the spoilers. In an alternative embodiment, a guide cover is arranged between two adjacent spoilers, the guide cover is in a conical structure, and a second guide hole is arranged on the side wall of the guide cover. In an alternative embodiment, the water inlet of the circulating pump is connected with the water tank through a water outlet pipe, the water outlet is connected with the shell through a water inlet pipe, and the shell is connected with the water tank through a return pipe. In an alternative embodiment, the water inlet pipe is provided with a first flow regulating valve, and the return pipe is provided with a second flow regulating valve. In an optional embodiment, the liquid cooling circulation system further comprises an auxiliary heat dissipation system, the auxiliary heat dissipation system comprises a second heat dissipation fin arranged on the outer wall of the water tank and a heat dissipation fan for performing forced air cooling on the second heat dissipation fin, and the heat dissipation fan is electrically connected with the controller and controlled by the controller. In an alternative embodiment, the controller is provided with a display screen for displaying temperature and running state and operation buttons for parameter presetting. The technical scheme of the application has the following beneficial technical effects: According to the high-efficiency flue gas waste heat recovery cooling device provided by the embodiment of the application, the retention time of high-temperature flue gas in the heat exchange tube is effectively prolonged and the flow path of the high-temperature flue gas is optimized through the flow guide structure arranged in the heat exchange tube, so that the heat exchange between th