CN-224212719-U - Water vapor discharge device used during cooling of water quenching tank

Abstract

The utility model relates to the technical field of cold-rolled strip steel post-treatment equipment in the metallurgical industry, and particularly discloses a water vapor discharge device used during cooling of a water quenching tank, which comprises a water quenching tank body, wherein strip steel inlet tanks and strip steel outlet tanks are respectively arranged at two sides of the water quenching tank body; the device comprises an inlet box body, an outlet box body, a main pipeline, a fog discharging fan, a sewage pit, a reasonable layout, a good sealing, corrosion-resistant design, intelligent control and safety guarantee, and is characterized in that flange interfaces are arranged on the inlet box body and the outlet box body, the diameter of each flange interface is DN200, two ends of the main pipeline made of polypropylene (PPH) are respectively and hermetically connected with the flange interfaces of the inlet box body and the outlet box body, the fog discharging fan is communicated with the main pipeline through a branch pipeline, the sewage pit is connected with the outlet of the fog discharging fan through a discharge pipeline, the main pipeline and the branch pipeline are uniformly arranged below the floor of an operation platform, and the device is used for realizing efficient steam discharging, reliable operation, energy conservation, consumption reduction, high safety performance and effective improvement of production efficiency and service life.

Inventors

• LIU HUIGANG
• ZOU MING
• WU QIANG
• LI JIAN
• JIN KAILIN
• LI QIANG
• LIU BO
• ZHANG PENG
• ZHAN HONG
• CHEN YOU

Assignees

• 山西永硕新材料科技有限公司

Dates

Publication Date

20260508

Application Date

20250530

Claims (7)

1. 1. A water vapor discharge device for cooling a water quenching tank, comprising: A water quenching tank body (1), two sides of which are respectively provided with a strip steel inlet box body (2) and a strip steel outlet box body (3); the inlet box body (2) and the outlet box body (3) are respectively provided with a flange interface (4), and the diameter of the flange interface (4) is DN200; A main pipeline (5) made of polypropylene (PPH) and two ends of which are respectively connected with flange interfaces (4) of the inlet box body (2) and the outlet box body (3) in a sealing way; the mist exhaust fan (6) is communicated with the main pipeline (5) through a branch pipeline (7); The sewage pit (8) is connected with the outlet of the fog discharging fan (6) through a discharge pipeline (9); The main pipeline (5) and the branch pipelines (7) are uniformly distributed below the floor of the operation platform and keep a distance with the ground of the steel structure.
2. 2. The water vapor discharge device for cooling a water quenching tank as claimed in claim 1, wherein the flange interfaces (4) are symmetrically arranged at the top center positions of the inlet tank body (2) and the outlet tank body (3), the two flange interfaces (4) are respectively communicated with inner cavities of the inlet tank body (2) and the strip steel outlet tank body (3), and a sealing surface of the flange interfaces (4) adopts a silicon rubber gasket resistant to high temperature of more than 200 ℃.
3. 3. The water vapor discharge device for cooling a water quenching tank as claimed in claim 1, wherein the wall thickness of the main pipeline (5) and the lateral pipeline (7) made of polypropylene (PPH) is 8-10mm, the inner walls of the main pipeline (5) and the lateral pipeline (7) are smooth, the outer walls of the main pipeline and the lateral pipeline (7) are provided with reinforcing ribs (10), and the joint of the main pipeline (5) and the lateral pipeline (7) adopts a hot-melt welding process.
4. 4. The water vapor discharging device for cooling a water quenching tank according to claim 1, wherein the main pipeline (5) is horizontally arranged along the length direction of the water quenching tank body (1), the branch pipeline (7) is connected with the main pipeline (5) through a Y-shaped tee joint (11), and the branch pipeline (7) is inclined upwards by an angle of 10-15 degrees to form a negative pressure drainage structure.
5. 5. The water vapor discharge device for cooling a water quenching tank according to claim 1, wherein the mist discharge fan (6) is a corrosion-resistant axial flow fan, a filtering module (12) is arranged at an air inlet of the mist discharge fan, the filtering module (12) comprises a plurality of layers of stainless steel filter screens (13) and cyclone centrifugal water vapor separators (14), and the mesh number of the stainless steel filter screens (13) is 80-100 meshes.
6. 6. The water vapor discharge device for cooling a water quenching tank according to claim 1, wherein the tail end of the discharge pipeline (9) is inserted below the liquid level of the sewage pit (8), a pressure release valve (15) is arranged at the top of the sewage pit (8), a polytetrafluoroethylene anticorrosive layer (16) is coated on the inner wall of the discharge pipeline (9), and the thickness of the polytetrafluoroethylene anticorrosive layer (16) is 0.5-1mm.
7. 7. The water vapor discharging device for cooling a water quenching tank as recited in claim 1, further comprising a control system, said control system comprising: the humidity sensor (17) is arranged on the steel structure ground of the water quenching tank body (1); The programmable logic controller (18) is electrically connected with the humidity sensor (17) and the mist exhausting fan (6) and dynamically adjusts the rotating speed of the fan according to the humidity data; a differential pressure sensor (19) arranged at the inlets of the main pipeline (5) and the branch pipeline (7); The alarm module (20), alarm module (20) are audible and visual alarm, alarm module (20) are linked with differential pressure sensor (19), trigger audible and visual alarm when detecting that trunk line (5), lateral conduit (7) internal pressure is unusual or fog fan (6) trouble.

Description

Water vapor discharge device used during cooling of water quenching tank Technical Field The utility model relates to the technical field of cold-rolled strip steel post-treatment equipment in the metallurgical industry, and particularly discloses a water vapor discharge device used during cooling of a water quenching tank. Background In the steel production process, a water quenching tank is a key device for cooling strip steel, and a large amount of high-temperature water vapor can be generated in the cooling process. The traditional water quenching tank steam discharge device often has the problems of poor sealing performance, easy corrosion of pipelines, low steam discharge efficiency and the like. The device adopts a part of common material pipelines, the pipelines are easy to rust and damage under the high-temperature and high-humidity environment, the frequent replacement increases the maintenance cost, and the pipelines of the device are unreasonably distributed, so that the steam discharge resistance is high, the steam in the water quenching tank is difficult to rapidly and effectively discharge, the cooling effect of the strip steel is influenced, the moisture in a workshop is excessively heavy for a long time, and the equipment and the working environment of operators are corroded. Therefore, there is a need for a water vapor discharge device with reasonable structure and stable performance to improve the efficiency and reliability of vapor discharge during cooling of the water quenching tank. Disclosure of utility model The utility model provides a water vapor discharge device for cooling a water quenching tank, which realizes high-efficiency vapor discharge, ensures reliable operation of the device, prolongs the service life of equipment, saves energy and improves production safety and economy through reasonable pipeline layout, good sealing design, corrosion-resistant material selection, an intelligent control system and safety guarantee measures. The utility model is realized in that a water vapor discharge device for cooling a water quenching tank comprises: The water quenching tank body is provided with a strip steel inlet box body and a strip steel outlet box body at two sides respectively; The inlet box body and the outlet box body are respectively provided with a flange interface, and the diameters of the flange interfaces are DN200; The two ends of the main pipeline made of polypropylene (PPH) are respectively and hermetically connected with flange interfaces of the inlet box body and the outlet box body; The fog discharging fan is communicated with the main pipeline through a branch pipeline; the sewage pit is connected with an outlet of the mist exhaust fan through a discharge pipeline; The main pipeline and the branch pipelines are uniformly distributed below the floor of the operation platform and keep a distance with the ground of the steel structure. As the water vapor discharge device for cooling the water quenching tank, the flange interfaces are preferably symmetrically arranged at the top center positions of the inlet tank body and the outlet tank body, the two flange interfaces are respectively communicated with the inner cavities of the inlet tank body and the strip steel outlet tank body, and the sealing surfaces of the flange interfaces adopt silicon rubber gaskets resistant to high temperature of more than 200 ℃. As the water vapor discharge device for cooling the water quenching tank, the wall thickness of the main pipeline and the lateral pipeline of the polypropylene (PPH) material is preferably 8-10mm, the inner walls of the main pipeline and the lateral pipeline are smooth, the outer walls of the main pipeline and the lateral pipeline are provided with reinforcing ribs, and the joint of the main pipeline and the lateral pipeline adopts a hot-melt welding process. As the water vapor discharge device for cooling the water quenching tank, the main pipeline is preferably arranged horizontally along the length direction of the water quenching tank body, the branch pipeline is connected with the main pipeline through a Y-shaped tee joint, and the branch pipeline is inclined upwards by an angle of 10-15 degrees to form a negative pressure drainage structure. As the water vapor discharge device for cooling the water quenching tank, the mist discharge fan is preferably a corrosion-resistant axial flow fan, the air inlet of the mist discharge fan is provided with a filter module, the filter module comprises a plurality of layers of stainless steel filter screens and cyclone centrifugal water vapor separators, and the mesh number of the stainless steel filter screens is 80-100 meshes. As the water vapor discharge device for cooling the water quenching tank, the tail end of the discharge pipeline is preferably inserted below the liquid level of the sewage pit, the top of the sewage pit is provided with a pressure relief valve, the inner wall of the discharge pipeline is coated w