Lens protection device in high-temperature environment

Abstract

The utility model relates to a lens protection device in a high temperature environment, which belongs to the technical field of lens protection, and comprises a lens tube and a protection assembly, a lens of the lens tube is inserted into the protection assembly, the protection assembly comprises an air flow distribution structural body, an air flow circulation chamber is arranged in the air flow distribution structural body, and the air flow circulation chamber is communicated with the air flow circulation chamber. A lens of the lens tube is located in the airflow circulation cavity, a circulation air outlet nozzle is installed on one side of the airflow distribution structural body, and a circulation air inlet nozzle is installed on the other side of the airflow distribution structural body. According to the utility model, through the arrangement of the airflow circulation chamber, the circulation air inlet nozzle and the circulation air outlet nozzle, the lens main body can be efficiently cooled, the lens main body is protected from being damaged by high temperature, the direct impact of airflow is avoided, the quality of optical glass is improved, cooling is carried out in a closed environment, the heat exchange efficiency is improved, and the service life of the lens main body is prolonged. Therefore, the cooling speed of parts needing to be cooled, such as optical glass, is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of lens protection, and in particular relates to a lens protection device in a high-temperature environment. Background Art

[0002] In high temperature environments, it is crucial to cool the lens to avoid optical performance degradation or physical damage due to excessive temperature; the following are some methods for cooling the lens in high temperature environments: Passive insulation combined with active cooling: Use a combination of passive insulation and active cooling devices to control temperature; Passive insulation devices can reduce the impact of external heat sources, while active cooling devices actively reduce the lens temperature through devices such as fans; Integrated cooling pipes: Integrate cooling pipes in the lens or camera housing to effectively reduce the temperature of the lens and sensor by passing compressed air or liquid, reduce thermal pixel drift, and improve image quality; Dedicated cooling and constant temperature cameras: Use industrial cameras designed for high temperature environments. These cameras usually have an integrated cooling system that can maintain a stable operating temperature at high temperatures to ensure the accuracy and quality of image acquisition; Application of control systems: Combine temperature sensors and control systems to monitor the temperature of the lens in real time, and automatically adjust the working status of the cooling device according to temperature changes to maintain the lens working at the optimal temperature.

[0003] At present, in some high-temperature working environments, it is necessary to use a lens to capture the working scene. For example, in the cold rolling continuous annealing process, in order to grasp the running status of the strip in the continuous annealing furnace in real time and dynamically, a camera monitoring system must be installed. When the lens of the camera system operates in a high-temperature environment, it is affected by the high temperature and hot air flow, which will cause the optical performance of the lens to deteriorate or cause physical damage to the lens. Based on this, a lens protection device for high-temperature environments is proposed. Utility Model Content

[0004] The purpose of the present invention is to provide a lens protection device for high temperature environments with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A lens protection device for a high-temperature environment comprises a lens tube and a protection assembly, wherein the lens of the lens tube is inserted into the protection assembly, the protection assembly comprises an airflow distribution structure, an airflow circulation chamber is provided in the airflow distribution structure, the lens of the lens tube is located in the airflow circulation chamber, a circulating air outlet nozzle is installed on one side of the airflow distribution structure, and a circulating air inlet nozzle is installed on the other side of the airflow distribution structure, the circulating air outlet nozzle and the circulating air inlet nozzle are connected to the airflow circulation chamber.

[0007] As a further optimization solution of the present invention, the inner surface of the airflow circulation chamber is smooth.

[0008] As a further optimization solution of the present invention, the inner surface of the airflow circulation chamber is configured to be spiral.

[0009] As a further optimization solution of the present invention, the top seal of the airflow distribution structure is equipped with an airflow sealing upper pressure plate, and the inner surface of the airflow sealing upper pressure plate is sealed and connected to the outer surface of the lens of the mirror tube.

[0010] As a further optimization solution of the present invention, an airflow sealing lower pressure plate is installed below the airflow distribution structure, and a heat insulation protective cover is installed on the inner surface of the airflow sealing lower pressure plate.

[0011] As a further optimization solution of the present invention, an air inlet hole is provided on the airflow sealing lower pressure plate, and the air inlet hole is arranged at an angle.

[0012] The beneficial effects of the present invention are as follows: the present invention can efficiently cool the lens body through the arrangement of the air circulation chamber, the circulating air inlet nozzle and the circulating air outlet nozzle, thereby protecting the lens body from high-temperature damage, while also avoiding direct impact of the air flow, thereby improving the quality of the optical glass. At the same time, cooling is carried out in a closed environment, thereby improving the efficiency of heat exchange, thereby accelerating the cooling speed of components that need to be cooled, such as optical glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 It is a side structural schematic diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the middle part of the airflow distribution structure in the first embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the middle part of the airflow distribution structure in the second embodiment of the present utility model.

[0017] In the figure: 1. Lifting cylinder; 2. Clamp; 3. Mirror tube; 4. Air flow distribution structure; 5. Air flow sealing upper pressure plate; 6. Circulating air outlet nozzle; 7. Circulating air inlet nozzle; 8. Air flow circulation chamber; 9. Air flow sealing lower pressure plate; 10. Thermal insulation protective cover; 11. Air inlet hole. DETAILED DESCRIPTION

[0018] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example 1: Figure 1 、 Figure 2 and Figure 3 As shown, a lens protection device for a high temperature environment includes a lifting cylinder 1, a clamp 2, a lens tube 3 and a protection assembly, the clamp 2 is installed on the telescopic output end of the lifting cylinder 1, the lens tube 3 is installed on the clamp 2, the lens of the lens tube 3 is inserted into the protection assembly, the protection assembly includes an airflow distribution structure 4, an airflow circulation chamber 8 is opened in the airflow distribution structure 4, the lens of the lens tube 3 is located in the airflow circulation chamber 8, a circulating air outlet nozzle 6 is installed on one side of the airflow distribution structure 4, the circulating air outlet nozzle 6 is installed above the airflow circulation chamber 8, and a circulating air inlet nozzle 7 is installed on the other side of the airflow distribution structure 4, the circulating air inlet nozzle 7 is installed below the airflow circulation chamber 8, the circulating air outlet nozzle 6 and The circulating air inlet nozzle 7 is connected to the airflow circulation chamber 8, the inner surface of the airflow circulation chamber 8 is smoothly set, the top of the airflow distribution structure 4 is sealed with an airflow sealing upper pressure plate 5, the inner surface of the airflow sealing upper pressure plate 5 is sealed with the outer surface of the lens of the mirror tube 3, and an airflow sealing lower pressure plate 9 is installed below the airflow distribution structure 4. The inner surface of the airflow sealing lower pressure plate 9 is installed with a heat insulation protection cover 10, and the heat insulation protection cover 10 is made of high-temperature barrier quartz glass or other heat-insulating transparent components. An air inlet hole 11 is opened on the airflow sealing lower pressure plate 9, and the air inlet hole 11 is inclined. The air inlet hole 11 can be opened according to demand, and the inclination direction of the air inlet hole 11 can be opened at different inclination angles according to demand;

[0020] The setting of the air inlet 11 can balance the pressure in the entire air circulation chamber 8 and prevent local pressure from being too high. At the same time, it can help guide the airflow to form a specific flow pattern in the air circulation chamber 8, which is conducive to the uniform distribution of gas and improves mixing efficiency. In the process of air intake through the circulating air inlet nozzle 7, if there are dead corners or low-lying areas at the bottom of the air circulation chamber 8, gas may accumulate in these areas. The setting of the air inlet 11 can help the gas flow and reduce gas accumulation in these areas. In addition, when the circulating air outlet nozzle 6 is exhausting, if the exhaust speed is too fast, a local vacuum may be formed in the air circulation chamber 8. The setting of the air inlet 11 can allow external air to enter to fill the vacuum caused by exhaust and prevent the lens in the air circulation chamber 8 from being damaged due to excessive difference in internal and external pressure.

[0021] After the air is exhausted, the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened, and the air inlet nozzle 7 is opened.

[0022] This device can effectively prevent hot air flow from impacting protected optical lenses, sensors and other temperature-sensitive components. At the same time, this device can instantly cool related components affected by high temperatures of more than 1,000 degrees to below 50°C through airflow.

[0023] Example 2: Figure 1 、 Figure 2 and Figure 4 As shown, a lens protection device for a high temperature environment includes a lifting cylinder 1, a clamp 2, a lens tube 3 and a protection component. The clamp 2 is installed on the telescopic output end of the lifting cylinder 1, the lens tube 3 is installed on the clamp 2, and the lens of the lens tube 3 is inserted into the protection component. The protection component includes an airflow distribution structure 4, an airflow circulation chamber 8 is opened in the airflow distribution structure 4, and the lens of the lens tube 3 is located in the airflow circulation chamber 8. A circulating air outlet nozzle 6 is installed on one side of the airflow distribution structure 4, and the circulating air outlet nozzle 6 is installed above the airflow circulation chamber 8. A circulating air inlet nozzle 7 is installed on the other side of the airflow distribution structure 4, and the circulating air inlet nozzle 7 is installed below the airflow circulation chamber 8. The circulating air outlet nozzle 6 and the circulating air circulation nozzle 6 are installed at the bottom of the airflow circulation chamber 8. The annular air inlet nozzle 7 is connected to the airflow circulation chamber 8, the inner surface of the airflow circulation chamber 8 is set to a spiral shape, the top of the airflow distribution structure 4 is sealed with an airflow sealing upper pressure plate 5, the inner surface of the airflow sealing upper pressure plate 5 is sealed with the outer surface of the lens of the mirror tube 3, and an airflow sealing lower pressure plate 9 is installed below the airflow distribution structure 4. The inner surface of the airflow sealing lower pressure plate 9 is installed with a heat insulation protection cover 10, and the heat insulation protection cover 10 is made of high-temperature barrier quartz glass or other heat-insulating transparent components. An air inlet hole 11 is opened on the airflow sealing lower pressure plate 9, and the air inlet hole 11 is inclined. The air inlet hole 11 can be opened according to demand, and the inclination direction of the air inlet hole 11 can be opened at different inclination angles according to demand.

[0024] During use, the working process is the same as that of Example 1. On the basis of Example 1, when cold air flows through the air circulation chamber 8 with a spiral inner surface, the cold air can rise in a spiral shape in the air circulation chamber 8, thereby improving the uniformity of the cold air distribution, so that the cold air can dissipate heat to the lens more evenly, ensuring the efficiency and quality of heat dissipation protection for the lens.

[0025] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A lens protection device for high temperature environments, comprising a lens tube (3) and a protection component, characterized in that: The lens of the mirror tube (3) is inserted into a protective assembly, and the protective assembly includes an airflow distribution structure (4), an airflow circulation chamber (8) is provided in the airflow distribution structure (4), and the lens of the mirror tube (3) is located in the airflow circulation chamber (8), a circulating air outlet nozzle (6) is installed on one side of the airflow distribution structure (4), and a circulating air inlet nozzle (7) is installed on the other side of the airflow distribution structure (4), and the circulating air outlet nozzle (6) and the circulating air inlet nozzle (7) are connected to the airflow circulation chamber (8).

2. The lens protection device for high temperature environments according to claim 1, characterized in that: The inner surface of the airflow circulation chamber (8) is smooth.

3. The lens protection device for high temperature environment according to claim 1, characterized in that: The inner surface of the airflow circulation chamber (8) is arranged in a spiral shape.

4. The lens protection device for high temperature environments according to any one of claims 2 or 3, characterized in that: An airflow sealing upper pressure plate (5) is installed on the top of the airflow distribution structure (4) in a sealing manner, and the inner surface of the airflow sealing upper pressure plate (5) is sealed to the outer surface of the lens of the lens tube (3).

5. The lens protection device for high temperature environment according to claim 4, characterized in that: An airflow sealing lower pressure plate (9) is installed below the airflow distribution structure (4), and a heat insulation protective cover (10) is installed on the inner surface of the airflow sealing lower pressure plate (9).

6. The lens protection device for high temperature environment according to claim 5, characterized in that: An air inlet hole (11) is provided on the airflow sealing lower pressure plate (9), and the air inlet hole (11) is arranged obliquely.

Images