CN-122014757-A - Manual double-path cooling system for bearing of combustion-supporting fan of hot blast stove

Abstract

A manual double-path cooling system for a bearing of a combustion-supporting fan of a hot blast stove comprises a bearing cooling cavity, a main cooling path, a standby cooling path and a temperature monitoring assembly, wherein the main cooling path and the standby cooling path are respectively provided with an independent water source, an inlet and outlet pipeline and a manual valve, the two paths of cooling are mutually independent, the switching between the main path and the standby path is realized through the manual valve, and the temperature monitoring assembly monitors the temperature of the bearing in real time and can warn when the temperature exceeds the temperature. The system has the advantages of simple structure, low cost and high reliability, does not need to rely on automatic control, can be quickly and manually switched to the standby cooling path when the main cooling path fails, effectively avoids equipment shutdown caused by bearing cooling failure, ensures the continuity and safety of production, and is particularly suitable for industrial scenes without automatic control or needing emergency cooling.

Inventors

• LIU JIAN
• PAN XIANGMIN
• TAN KUN
• Mai Rongyuan
• XIE XIAOFEI

Assignees

• 阳春新钢铁有限责任公司

Dates

Publication Date

20260512

Application Date

20260327

Claims (9)

1. 1. Manual double-circuit cooling system of combustion-supporting fan bearing of hot-blast furnace, characterized by, include: The bearing cooling cavity is arranged on the outer side of the bearing of the combustion fan body in a surrounding manner and is used for accommodating cooling medium and carrying out heat exchange with the bearing; The main cooling circuit comprises a main cooling water source, a main water inlet pipe, a main water inlet manual valve, a main water outlet pipe and a main water outlet manual valve, wherein one end of the main water inlet pipe is communicated with the main cooling water source, the other end of the main water inlet pipe is communicated with a water inlet of the bearing cooling cavity, and the main water inlet manual valve is connected in series with the main water inlet pipe; The device comprises a standby cooling circuit, a standby cooling water source, a standby water inlet pipe, a standby water inlet manual valve, a standby water outlet pipe and a standby water outlet manual valve, wherein one end of the standby water inlet pipe is communicated with the standby cooling water source, the other end of the standby water inlet pipe is communicated with a water inlet of a bearing cooling cavity, and the standby water inlet manual valve is connected in series with the standby water inlet pipe; The temperature monitoring assembly comprises a temperature sensor and a temperature display, wherein the temperature sensor is arranged on the inner wall of the bearing cooling cavity or on the outer side of the bearing, and the temperature display is electrically connected with the temperature sensor.
2. 2. A manual double-path cooling system for a combustion fan bearing of a hot blast stove according to claim 1, wherein the main cooling water source is an industrial circulating cooling water system.
3. 3. A manual double-path cooling system for a combustion fan bearing of a hot blast stove according to claim 2, wherein the standby cooling water source is an independently arranged emergency industrial open-circuit cooling system.
4. 4. The manual double-path cooling system for the bearings of the combustion-supporting fans of the hot blast stove according to claim 1, wherein the main water inlet pipe, the standby water inlet pipe, the main water outlet pipe and the standby water outlet pipe are made of galvanized pipe materials.
5. 5. The manual double-path cooling system for the bearing of the combustion fan of the hot blast stove according to claim 4, wherein the main water inlet manual valve, the main water outlet manual valve, the standby water inlet manual valve and the standby water outlet manual valve are manual ball valves.
6. 6. A manual double-path cooling system for a combustion fan bearing of a hot blast stove according to claim 1, wherein the temperature monitoring assembly further comprises a temperature alarm unit, and the temperature alarm unit sends an alarm signal when the temperature of the bearing detected by the temperature sensor exceeds a preset threshold value.
7. 7. The manual double-path cooling system for a combustion-supporting fan bearing of a hot blast stove according to claim 1, wherein the inner wall of the bearing cooling cavity is made of copper alloy.
8. 8. A manual double-path cooling system for a combustion fan bearing of a hot blast stove according to claim 1, wherein the preset alarm temperature is 65 ℃ and the preset jump stop temperature is 80 ℃.
9. 9. A manual double-path cooling system for a combustion fan bearing of a hot blast stove according to claim 1, wherein the temperature sensor is a PT100 platinum resistance temperature sensor.

Description

Manual double-path cooling system for bearing of combustion-supporting fan of hot blast stove Technical Field The invention relates to the technical field of auxiliary equipment of combustion-supporting fans of hot-blast stoves, in particular to a manual double-path cooling system for bearings of combustion-supporting fans of hot-blast stoves. Background The combustion-supporting fan is a key device in the production of the hot blast stove, and the bearing of the combustion-supporting fan can continuously generate heat in the high-speed running process. If the heat cannot be discharged in time, the temperature of the bearing is increased, the bearing is accelerated to wear, the service life is shortened, the bearing is deformed and blocked, the fan is stopped when the heat is heavy, and even production safety accidents are caused. The existing combustion-supporting fan bearing cooling system is designed for single-way cooling, and only depends on a set of cooling water source (such as clean circulating water) and a pipeline to cool the bearing. When the single-path system fails (such as a cooling water pipeline is blocked, a valve is damaged, the pressure of a water source is insufficient, and the like), the cooling function can be immediately disabled, emergency shutdown maintenance is needed, the production continuity is seriously affected, and a part of double-path cooling systems are switched by the automatic control module, so that the cost is high, and effective cooling can not be realized when the power is off or the control system fails, so that the application scene is limited. Disclosure of Invention In order to overcome the defects in the prior art, the invention aims to provide a manual double-path cooling system for a bearing of a combustion-supporting fan of a hot blast stove. The technical scheme adopted by the invention for solving the technical problems is that the manual double-path cooling system for the bearing of the combustion-supporting fan of the hot blast stove comprises the following components: The bearing cooling cavity is arranged on the outer side of the bearing of the combustion fan body in a surrounding manner and is used for accommodating cooling medium and carrying out heat exchange with the bearing; The main cooling circuit comprises a main cooling water source, a main water inlet pipe, a main water inlet manual valve, a main water outlet pipe and a main water outlet manual valve, wherein one end of the main water inlet pipe is communicated with the main cooling water source, the other end of the main water inlet pipe is communicated with a water inlet of the bearing cooling cavity, and the main water inlet manual valve is connected in series with the main water inlet pipe; The device comprises a standby cooling circuit, a standby cooling water source, a standby water inlet pipe, a standby water inlet manual valve, a standby water outlet pipe and a standby water outlet manual valve, wherein one end of the standby water inlet pipe is communicated with the standby cooling water source, the other end of the standby water inlet pipe is communicated with a water inlet of a bearing cooling cavity, and the standby water inlet manual valve is connected in series with the standby water inlet pipe; The temperature monitoring assembly comprises a temperature sensor and a temperature display, wherein the temperature sensor is arranged on the inner wall of the bearing cooling cavity or on the outer side of the bearing, and the temperature display is electrically connected with the temperature sensor. As a further improvement of the invention, the main cooling water source is an industrial circulating cooling water system. As a further improvement of the invention, the standby cooling water source is an independently arranged emergency industrial open-circuit cooling system. As a further improvement of the invention, the main water inlet pipe, the standby water inlet pipe, the main water outlet pipe and the standby water outlet pipe are made of galvanized pipe materials. As a further improvement of the invention, the main water inlet manual valve, the main water outlet manual valve, the standby water inlet manual valve and the standby water outlet manual valve are manual ball valves. As a further improvement of the invention, the temperature monitoring assembly further comprises a temperature alarm unit, and the temperature alarm unit sends an alarm signal when the temperature of the bearing detected by the temperature sensor exceeds a preset threshold value. As a further improvement of the invention, the inner wall of the bearing cooling cavity is made of copper alloy. As a further improvement of the invention, the preset alarm temperature is 65 ℃ and the preset jump stop temperature is 80 ℃. As a further improvement of the invention, the temperature sensor is a PT100 platinum resistance temperature sensor. Compared with the prior art, the invention has the beneficial effects that the