Anti-water-backflow device for micro-oxidation equipment of annealing furnace of hot galvanizing unit

Abstract

The utility model discloses a water backflow prevention device for micro-oxidation equipment of an annealing furnace of a hot galvanizing unit, which comprises a water tank, a water inlet floating ball cut-off valve arranged in the water tank and movably inserted with the water tank, and a cut-off water inlet mechanism arranged at the top of the water tank, the liquid level meter unit and the pressure safety valve are arranged at the top of the water tank, the thermometer, the heater and the air outlet cut-off mechanism are arranged on one side of the water tank, the first drainage cut-off valve and the second drainage cut-off valve are arranged on the other side of the water tank, and the air flow adjusting mechanism is communicated with the interior of the water tank. The water backflow prevention device for the micro-oxidation equipment of the hot galvanizing unit annealing furnace solves the major production problem caused by the fact that water is easily pressed into the alloying hot galvanizing unit annealing furnace when the water level control of the micro-oxidation equipment is abnormal, and the reliability and the safety of the micro-oxidation equipment of the alloying hot galvanizing unit annealing furnace are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof backflow of micro-oxidation equipment, and more specifically to a waterproof backflow device for micro-oxidation equipment of an annealing furnace of a hot-dip galvanizing unit. Background Art

[0002] There are some prototypes of micro-oxidation equipment in the annealing furnace of the alloyed hot-dip galvanizing unit in the steel plant. From the perspective of use effect, it is quite obvious to improve the surface quality of the micro-oxidation equipment. However, since the design of the whole set of micro-oxidation equipment is not comprehensive enough, there are some defects as follows: the liquid level of the micro-oxidation equipment is detected by a float level gauge to control the opening and closing of the water supply valve. When the float level gauge is stuck or the water supply valve itself is abnormal, the micro-oxidation equipment will be infinitely replenished with water, causing water to be pressed into and backflowed into the annealing furnace of the alloyed hot-dip galvanizing unit. Therefore, the liquid level control method of the existing micro-oxidation equipment is unreasonable, and the reliability and safety performance are relatively poor, which causes major production safety problems. Utility Model Content

[0003] The utility model aims to provide a device for preventing backflow of micro-oxidation equipment of an annealing furnace of a hot-dip galvanizing unit, so as to solve the problem that when the water level control of the micro-oxidation equipment is abnormal, water is easily pressed into and backflows into the annealing furnace, thereby causing major technical problems of safe production, and improve the reliability and safety of the micro-oxidation equipment.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a waterproof backflow device for micro-oxidation equipment of an annealing furnace of a hot-dip galvanizing unit, comprising a water tank, a water inlet float cut-off valve arranged in the water tank and movably plugged with the water tank, a water inlet cut-off mechanism arranged on the top of the water tank, a liquid level gauge unit and a pressure safety valve arranged on the top of the water tank, a thermometer, a heater and a gas outlet cut-off mechanism arranged on one side of the water tank, a first drain cut-off valve and a second drain cut-off valve arranged on the other side of the water tank, and a gas flow regulating mechanism communicated with the inside of the water tank.

[0006] Furthermore, the water inlet cut-off mechanism includes a water inlet pipe arranged on the top of the water tank and a water inlet cut-off manual valve and a water inlet solenoid valve arranged on the water inlet pipe. The two ends of the water inlet solenoid valve are respectively connected to the water inlet cut-off manual valve and the water inlet float cut-off valve through the water inlet pipe.

[0007] Furthermore, the liquid level meter unit includes a water inlet tank liquid level meter and a humidification tank liquid level meter, and both the water inlet tank liquid level meter and the humidification tank liquid level meter are connected to the inside of the water tank.

[0008] Furthermore, the air outlet cut-off mechanism includes an air outlet pipe arranged on the side of the water tank and connected to the water tank, and an air outlet cut-off hand valve arranged on the air outlet pipe.

[0009] Furthermore, the first drain stop valve is connected to one end of the water inlet float cut-off valve away from the water inlet solenoid valve, one end of the second drain stop valve is connected to the side of the water tank, and the other end of the second drain stop valve is connected to the first drain stop valve.

[0010] Furthermore, the gas flow regulating mechanism includes a gas flow pipeline connected to the interior of the water tank and a gas flow regulating valve arranged on the gas flow pipeline.

[0011] Furthermore, the pressure safety valve, the thermometer and one end of the heater are all connected to the interior of the water tank.

[0012] By adopting the above technical solution, the utility model has the following advantages:

[0013] The utility model provides a device for preventing backflow of micro-oxidation equipment of an annealing furnace of an alloyed hot-dip galvanizing unit. By arranging a water inlet cut-off mechanism, a liquid level gauge unit, a pressure safety valve, a gas outlet cut-off mechanism, a gas flow regulating mechanism, a water inlet float cut-off valve, a first drain cut-off valve, a second drain cut-off valve, a thermometer and a heater, the technical scheme of the utility model improves the reliability of the micro-oxidation equipment, solves the problem that when the water level control of the micro-oxidation equipment is abnormal, water is easily pressed into the annealing furnace of the alloyed hot-dip galvanizing unit, thereby causing major production problems, and greatly improves the reliability and safety of the micro-oxidation equipment of the annealing furnace of the alloyed hot-dip galvanizing unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0015] Figure 1 It is a structural schematic diagram of a waterproof backflow device for the micro-oxidation equipment of the annealing furnace of a hot-dip galvanizing unit.

[0016] Figure numerals: 1. Water inlet stop valve; 2. Water inlet solenoid valve; 3. Water inlet tank level gauge; 4. Humidification tank level gauge; 5. Pressure safety valve; 6. Air outlet stop valve; 7. Gas flow regulating valve; 8. Water inlet float cut-off valve; 9. First drain stop valve; 10. Second drain stop valve; 11. Thermometer; 12. Heater; 13. Air outlet pipe; 14. Water tank. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is specifically described below in conjunction with the drawings in the specification. The detailed features and advantages of the present invention are described in detail in the specific implementation mode. The content is sufficient to enable any technical personnel in this field to understand the technical content of the present invention and implement it accordingly. According to the description, claims and drawings disclosed in this specification, technical personnel in this field can easily understand the relevant purposes and advantages of the present invention.

[0018] Figure 1 The schematic diagram of the structure of the anti-backflow device of the micro-oxidation equipment of the annealing furnace of the hot-dip galvanizing unit is shown. Figure 1 As shown, it includes a water tank 14, a water inlet float shut-off valve 8, a water inlet shut-off mechanism, a liquid level meter unit, a pressure safety valve 5, a thermometer 11, a heater 12, a gas outlet shut-off mechanism, a first drain shut-off valve 9, a second drain shut-off valve 10 and a gas flow regulating mechanism.

[0019] Among them, the water inlet float cut-off valve 8 is located inside the water tank 14, and the connection relationship with the water tank 14 is active plug-in. The water inlet cut-off mechanism is arranged at the top of the water tank 14. The water inlet cut-off mechanism includes a water inlet pipe arranged at the top of the water tank 14 and a water inlet cut-off hand valve 1 and a water inlet solenoid valve 2 arranged on the water inlet pipe. The two ends of the water inlet solenoid valve 2 are respectively connected with the water inlet cut-off hand valve 1 and one end of the water inlet float cut-off valve 8 through the water inlet pipe. The other end of the water inlet float cut-off valve 8 away from the water inlet solenoid valve 2 is connected with the first drainage cut-off valve 9. One end of the second drainage cut-off valve 10 is connected with the water tank 14, and the first drainage cut-off valve 9 and the second drainage cut-off valve 10 are connected with each other. Through the cooperation of the water inlet float cut-off valve 8, the water inlet solenoid valve 2 and the first drainage cut-off valve 9, when the water level of the water tank 14 fails to control and the water inlet solenoid valve 2 fails, the water inlet can still be cut off through the water float cut-off valve 8 and the first drainage cut-off valve 9 when the water level of the water tank 14 is too high.

[0020] The liquid level meter unit is arranged at the top of the water tank 14, including a water inlet tank liquid level meter 3 and a humidification tank liquid level meter 4. Both the water inlet tank liquid level meter 3 and the humidification tank liquid level meter 4 are connected to the inside of the water tank 14. The liquid level in the water tank can be automatically controlled by observing the liquid level changes in the water tank through the liquid level meter unit.

[0021] The gas outlet cut-off mechanism is arranged on the side of the water tank 14, and includes a gas outlet pipe 13 connected to the water tank 14 and a gas outlet cut-off hand valve 6 arranged on the gas outlet pipe. When the water level in the water tank of the micro-oxidation device is normal, the gas outlet cut-off mechanism controls the gas discharge through the gas outlet cut-off hand valve 6. When the water level control of the micro-oxidation device is abnormal, the liquid level of the water tank 14 will be too high, and water will enter the annealing furnace through the gas outlet pipe 13, causing a production accident.

[0022] The gas flow regulating mechanism is connected to the inside of the water tank, and includes a gas flow pipeline connected to the inside of the water tank 14 and a gas flow regulating valve 7 arranged on the gas flow pipeline. The gas flow regulating valve 7 is arranged outside the water tank, and the gas flow in the water tank is controlled and regulated by the gas flow regulating valve 7.

[0023] One end of the pressure safety valve 5, the thermometer 11 and the heater 12 are all connected to the inside of the water tank 14. The pressure safety valve 5 is set on the top of the water tank. When the water tank is over-pressured, the safety valve automatically releases. It is a device for protecting the water tank pressure safety. The thermometer 11 and the heater 12 are set on the side of the water tank to control the water tank temperature and heat the water in the water tank respectively.

[0024] The working principle and use process of the waterproof backflow device of the micro-oxidation equipment of the hot-dip galvanizing unit annealing furnace are as follows: when in use, the water in the water tank is heated by the heater 12, the temperature of the water in the water tank is controlled by the thermometer 11, the pressure safety valve 5 protects the pressure safety in the water tank, and the water tank 14 automatically controls the water level of the water tank through the water inlet tank level gauge 3 and the humidification tank level gauge 4. When the liquid level detection in the water tank 14 fails, the liquid level in the water tank 14 will be too high, and water will enter the annealing furnace through the outlet pipe 13. And cause production accidents, by adding the water inlet float cut-off valve 8, even if the water tank 14 liquid level and the water inlet solenoid valve 2 control fail, when the water level in the water tank 14 is too high, the water inlet float cut-off valve 8 cooperates with the water inlet cut-off manual valve 1 and the first drain cut-off valve 9, so that after the water tank 14 liquid level and the water inlet solenoid valve 2 control fail, the water inlet can still be cut off when the water level in the water tank 14 is too high, ensuring that the water in the water tank 14 will not enter the annealing furnace through the outlet pipe 13 to cause production accidents, thereby improving the reliability of the equipment.

[0025] Finally, it should be pointed out that although the present invention has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present invention and are not used as a limitation of the present invention. Various equivalent changes or substitutions can be made without departing from the concept of the present invention. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present invention, they will fall within the scope of the claims of the present invention.

Claims

1. A device for preventing backflow of micro-oxidation equipment of annealing furnace of hot dip galvanizing unit, characterized in that: It includes a water tank, a water inlet float cut-off valve arranged in the water tank and movably connected to the water tank, a water inlet cut-off mechanism arranged on the top of the water tank, a liquid level gauge unit and a pressure safety valve arranged on the top of the water tank, a thermometer, a heater and a gas outlet cut-off mechanism arranged on one side of the water tank, a first drain cut-off valve and a second drain cut-off valve arranged on the other side of the water tank, and a gas flow regulating mechanism connected to the inside of the water tank.

2. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 1, characterized in that: The water inlet cut-off mechanism includes a water inlet pipe arranged on the top of the water tank and a water inlet cut-off hand valve and a water inlet solenoid valve arranged on the water inlet pipe. The two ends of the water inlet solenoid valve are respectively connected to the water inlet cut-off hand valve and the water inlet float cut-off valve through the water inlet pipe.

3. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 1, characterized in that: The liquid level meter unit includes a water inlet tank liquid level meter and a humidification tank liquid level meter, and both the water inlet tank liquid level meter and the humidification tank liquid level meter are connected to the inside of the water tank.

4. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 1, characterized in that: The air outlet cut-off mechanism comprises an air outlet pipeline which is arranged at the side of the water tank and communicates with the water tank, and an air outlet cut-off hand valve which is arranged on the air outlet pipeline.

5. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 2, characterized in that: The first drain stop valve is connected to one end of the water inlet float cut-off valve away from the water inlet solenoid valve, one end of the second drain stop valve is connected to the side of the water tank, and the other end of the second drain stop valve is connected to the first drain stop valve.

6. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 1, characterized in that: The gas flow regulating mechanism comprises a gas flow pipeline communicated with the interior of the water tank and a gas flow regulating valve arranged on the gas flow pipeline.

7. The anti-backflow device for micro-oxidation equipment of a hot dip galvanizing unit annealing furnace according to claim 1, characterized in that: The pressure safety valve, the thermometer and one end of the heater are all communicated with the interior of the water tank.

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