Automatic online monitoring system for UV lamp

Abstract

The utility model relates to a UV lamp automatic on-line monitoring system, which is provided with a UV lamp, a UV lamp intensity automatic detector and a control system used for monitoring the working time of the UV lamp, the working current value of the UV lamp and the intensity value of the UV lamp, the UV lamp comprises a UV lamp body and a plurality of UV lamp tubes, the plurality of UV lamp tubes are uniformly arranged inside the UV lamp body, the UV lamp automatic on-line monitoring system is also provided with a UV lamp intensity sensor, and the UV lamp intensity sensor is used for detecting the intensity of the UV lamp. The UV lamp intensity sensor is arranged on the outer surface of the UV lamp body, the UV lamp intensity sensor transmits an analog signal to the UV lamp intensity automatic detector through an optical fiber, and the UV lamp intensity automatic detector converts the analog signal into a digital signal and transmits the digital signal to the control system. According to the automatic online monitoring system for the UV lamp, the detection and monitoring of the working time, the working current value and the intensity value of the UV lamp in the whole life cycle are ensured, so that the risk of product quality is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic detection of UV lamp intensity, and in particular to an automatic online monitoring system for UV lamps. Background Technology

[0002] Current UV lamp inspections are typically performed manually at the start of each shift. Outside of inspection hours, if a UV lamp suddenly malfunctions and its intensity fails to meet process requirements, there is a significant risk to product quality.

[0003] See Figure 1 Existing manual UV lamp intensity testing technology generally consists of three main parts: a UV lamp usage time monitoring system, the UV lamp itself, and a manual UV lamp intensity tester. The UV lamp usage time monitoring system is typically designed and installed by most equipment suppliers, and both the UV lamp and the manual UV lamp intensity tester are commercially available components. In practice, the UV lamp is replaced when its usage time exceeds 2000 hours. When the UV lamp usage time is within 2000 hours, the intensity is checked at the start of each shift using a manual UV lamp intensity tester. A UV intensity greater than or equal to 150 mW / cm² is considered sufficient. 2 When the UV intensity is <150mw / cm, it indicates that the UV lamp is working properly; when the UV intensity is <150mw / cm, it indicates that the UV lamp is working properly. 2 If necessary, the UV lamp needs to be repaired or replaced. A drawback of this testing method is that manually testing the UV lamp intensity takes 20 minutes per shift, impacting production efficiency. Furthermore, outside of testing periods, the UV lamp's intensity value cannot be verified as meeting product process or quality requirements, posing a quality risk. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, this utility model proposes an automatic online monitoring system for UV lamps to ensure the detection and monitoring of working time, working current value, and intensity value throughout the entire life cycle of UV lamps, thereby avoiding risks to product quality.

[0006] According to an embodiment of the present invention, an automatic online monitoring system for UV lamps includes a UV lamp, an automatic UV lamp intensity detector, and a control system for monitoring the UV lamp's operating time, operating current, and intensity. The UV lamp includes a UV lamp body and UV lamp tubes, with a plurality of UV lamp tubes evenly arranged inside the UV lamp body. The automatic online monitoring system also includes a UV lamp intensity sensor, which is arranged on the outer surface of the UV lamp body. The UV lamp intensity sensor transmits analog signals to the automatic UV lamp intensity detector via optical fiber. The automatic UV lamp intensity detector converts the analog signals into digital signals and transmits the digital signals to the control system.

[0007] The beneficial effects of this utility model are that it uses an automatic UV lamp intensity detector to replace a manual UV lamp intensity tester, and through a control system, it monitors the UV lamp's working time, UV lamp working current value, and UV lamp intensity value, achieving automatic monitoring and early warning of the UV lamp's working time, working status, and output intensity value, effectively preventing potential product quality hazards; that is, it automatically monitors the working status and output intensity of the UV lamp body, and can automatically alarm, monitoring key process parameters throughout the entire life cycle to prevent major quality risks.

[0008] According to one embodiment of the present invention, the UV lamp body has an inverted U-shaped structure.

[0009] According to one embodiment of the present invention, three UV lamp intensity sensors are evenly distributed on the outer surface of the UV lamp body.

[0010] According to one embodiment of the present invention, the UV lamp is located indoors, the UV lamp intensity sensor is located directly below the UV lamp, and the UV lamp intensity automatic detector and the control system are located outdoors.

[0011] According to one embodiment of the present invention, the control system is equipped with an audible and visual alarm.

[0012] According to one embodiment of the present invention, the control system is provided with a digital display screen for displaying the UV lamp working time, UV lamp working current value and UV lamp intensity value of each UV lamp tube.

[0013] According to one embodiment of the present invention, the control system is provided with a UV current PLC data storage device D for storing the actual working current value of the UV lamp tube.

[0014] According to one embodiment of the present invention, the control system is provided with a UV intensity PLC data storage device D for storing the actual working intensity value of the UV lamp tube.

[0015] According to one embodiment of the present invention, the control system automatically tracks the operating current of each UV lamp and automatically issues an alarm when the current value is less than the alarm constant value.

[0016] According to one embodiment of the present invention, the UV lamp intensity sensor transmits an analog signal to an automatic UV lamp intensity detector via an optical fiber. The automatic UV lamp intensity detector converts the analog signal into a digital signal and then transmits the digital signal to the control system. When the signal is lower than a constant value, an automatic warning is issued.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is the alarm logic diagram for the UV lamp current meter;

[0022] Figure 3 This is the alarm logic diagram for the UV lamp intensity meter.

[0023] The labels in the diagram are: 1. UV lamp; 11. UV lamp body; 12. UV lamp tube; 2. Automatic UV lamp intensity detector; 3. Control system; 4. UV lamp intensity sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be understood that the terms "one side", "the other side", "both sides", "between", "middle", "upper end", "lower end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The automatic online monitoring system for UV lamps according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] See Figure 1 The present invention relates to an automatic online monitoring system for UV lamps, comprising a UV lamp 1, an automatic UV lamp intensity detector 2, a UV lamp intensity sensor 4, and a control system 3 for monitoring the working time, working current, and intensity of the UV lamp. The UV lamp 1 includes a UV lamp body 11 and UV lamp tubes 12, with several UV lamp tubes 12 evenly arranged inside the UV lamp body 11. The UV lamp intensity sensor 4 is arranged on the outer surface of the UV lamp body 11. The UV lamp intensity sensor 4 transmits analog signals to the automatic UV lamp intensity detector 2 via optical fiber. The automatic UV lamp intensity detector 2 converts the analog signals into digital signals and transmits the digital signals to the control system 3.

[0029] Preferably, the UV lamp body 11 has an inverted U-shaped structure to facilitate the UV lamp's ultraviolet radiation intensity irradiation of the product.

[0030] Preferably, three UV lamp intensity sensors 4 are evenly distributed on the outer surface of the UV lamp body 11 to monitor the intensity values ​​at different positions under the U-shaped layout, ensuring that the intensity values ​​of all areas of the product meet the process quality requirements.

[0031] Preferably, the UV lamp intensity sensor 4 is located directly below the UV lamp 1, the UV lamp 1 and the UV lamp intensity sensor 4 are located indoors, and the UV lamp intensity automatic detector 2 and the control system 3 are located outdoors. UV ultraviolet rays have strong radiation, and long-term exposure can cause changes in the properties of materials. Placing the UV lamp intensity automatic detector 2 outdoors ensures that the instrument's measurement accuracy meets the requirements, and placing the control system 3 outdoors ensures its normal operation.

[0032] Preferably, the control system 3 is equipped with an audible and visual alarm.

[0033] Preferably, the control system 3 is equipped with a digital display screen for displaying the UV lamp working time, UV lamp working current value and UV lamp intensity value of each UV lamp tube 12.

[0034] The control system 3 is equipped with a UV current PLC data storage device D for storing the actual operating current value of the UV lamp 12. The control system 3 is also equipped with a UV intensity PLC data storage device D for storing the actual operating intensity value of the UV lamp 12.

[0035] The control system 3 includes the control system body, PLC, analog output module and analog input module.

[0036] The UV lamp 1, UV lamp intensity automatic detector 2, control system body, PLC, analog output module, analog input module, and UV lamp intensity sensor 4 are all common components on the market. They are all standard parts and can be purchased directly from the market.

[0037] Specifically,

[0038] UV lamp 1 uses the Huantai brand EBU2-240-1900.

[0039] The UV lamp intensity automatic detector 2 uses the IEI FASTRCURE460 model.

[0040] The UV lamp intensity sensor 4 uses the FIBER350-5 model.

[0041] The control system itself uses Johnson Controls' METSYS.

[0042] The PLC used is the Mitsubishi FX5U-80MR / ES.

[0043] The analog output module used is the Mitsubishi FX5-4DA.

[0044] The analog input module used is the Mitsubishi FX5-4AD.

[0045] I. Monitoring of UV Lamp Usage Time: The control system 3 automatically tracks the on-state of each UV lamp tube 12 and records it in a cumulative time manner. An automatic warning is issued if the usage time exceeds 2000 hours. The control system 3 determines the status of the UV lamp tube 12 by monitoring whether a current value is generated during the operation of each UV lamp tube 12.

[0046] II. Monitoring of UV lamp operating current: The control system 3 automatically tracks the operating current of each UV lamp tube 12 and adds logical operations. When the current value is less than the alarm constant value (10A), an automatic warning is issued.

[0047] The principle of logical operations is as follows:

[0048] The first step is that the rated output power of each UV lamp tube 12 is P. 额After manually setting the power output percentage (set ≥ n%), the control center in control system 3 reads the power module percentage value in UV lamp tube 12 and multiplies it by the rated power P. 额 The actual output power P of UV lamp tube 12 was obtained. 实 And using the current conversion formula, the actual output power P is calculated. 实 Dividing by the operating voltage U, we obtain the actual operating current value I of the UV lamp 12. 实 And the actual operating current value I of UV lamp tube 12 实 It is stored in the PLC data memory D.

[0049] The formula for calculating the actual output power of each UV lamp tube 12 is as follows:

[0050] P 实 =P 额 ×n% (1)

[0051] The meanings of each symbol in formula (1) are as follows:

[0052] P 实 This indicates the actual output power of the UV lamp tube;

[0053] P 额 Indicates the rated output power of the UV lamp tube;

[0054] n% represents the manually set percentage of power output;

[0055] The current conversion formula is shown below:

[0056]

[0057] The meanings of each symbol in formula (2) are as follows:

[0058] I 实 This indicates the actual operating current value of the UV lamp tube;

[0059] P 实 This indicates the actual output power of the UV lamp tube;

[0060] U represents the operating voltage;

[0061] The second step, the key quality control system, involves reading the actual operating current value I of UV lamp 12 from the PLC data memory (using the industrial communication protocol Modbus TCP). 实 and the alarm constant value I 警 The data is compared, and the actual operating current value I is... 实 Less than alarm constant value I 警 When this occurs, it indicates that UV lamp 12 is malfunctioning. An alarm will then be triggered to prompt staff to repair or replace it.

[0062] See Figure 2 (UV lamp current meter alarm) In the figure, D51 represents the UV lamp current value; 8 represents the control system reading value; X represents the reading value; Y represents the constant value; DF represents the program instruction.

[0063] Specifically, the logic principle of UV lamp operating current monitoring is as follows: Each UV lamp tube 12 has a rated output power of 12KW. After manually setting the power output percentage (≥70%), the control center in control system 3 reads the power module percentage value of 70% from the UV lamp tube 12 and multiplies it by the rated power of 12KW, resulting in the actual output power of the UV lamp tube 12: 12KW × 70% = 8.4KW. Using the current conversion formula, the actual output power of 8.4KW is divided by the operating voltage of 380V, yielding the actual operating current value of the UV lamp tube 12: 8.4KW ÷ 380V ≈ 22A. This actual operating current value of 22A is stored in the PLC data memory D. The key quality control system communicates and reads the current value of 22A from the PLC data memory D and compares it with the 10A (alarm constant value) data. Since the actual current value of 22A is greater than the alarm constant value of 10A, it indicates that the UV lamp is normal.

[0064] III. Monitoring of UV Lamp Intensity: UV lamp intensity sensors 4 are arranged on the surface of each lamp tube in an inverted U-shape (e.g., at three points on the left, center, and right within the layout area). The UV lamp intensity sensors 4 transmit analog signals to an automatic UV lamp intensity detector 2 via optical fiber. The automatic UV lamp intensity detector 2 converts the analog signals into digital signals and then transmits the digital signals to the control system 3. The control system 3 incorporates arithmetic logic programs. When the signal is below a constant value of 150 mW / cm², the system will detect the intensity of the UV lamp intensity sensor. 2 Automatic warning will be issued at that time.

[0065] See Figure 3 (UV lamp intensity meter alarm) In the figure, D52 represents the UV lamp intensity value; 140 represents the control system reading value; X represents the reading value; Y represents the constant value; DF represents the program instruction.

[0066] The principle of logical operations is as follows:

[0067] The first step is for the PLC to read the UV lamp intensity value σ from the automatic UV lamp intensity detector 2. 读 The program includes a data conversion formula (using C language, for example: read data as memory D10 = 20000, convert it to D10 / 100 = D11, and the program reads the data in D11), and reads the value σ. 读 / 100 (the read value is 100 times larger than the applied measurement value), and this value σ 读 / 100 is stored in the signature UV intensity data storage D.

[0068] The second step involves the key quality control system, which uses communication to read the UV lamp intensity value σ from the PLC memory D. 读 / 100, and with 150mw / cm 2 Compare the (alarm constant value) data, and when the actual value σ... 读 / 100 is less than this value: 150mw / cm 2 When this occurs, it indicates that UV lamp 12 is malfunctioning. An alarm will then be triggered to prompt staff to repair or replace it.

[0069] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic online monitoring system for UV lamps, characterized in that: The system includes a UV lamp (1), an automatic UV lamp intensity detector (2), and a control system (3) for monitoring the UV lamp's working time, UV lamp working current, and UV lamp intensity. The UV lamp (1) includes a UV lamp body (11) and UV lamp tubes (12). Several UV lamp tubes (12) are evenly arranged inside the UV lamp body (11). The automatic online monitoring system for the UV lamp also includes a UV lamp intensity sensor (4), which is arranged on the outer surface of the UV lamp body (11). The UV lamp intensity sensor (4) transmits analog signals to the automatic UV lamp intensity detector (2) via optical fiber. The automatic UV lamp intensity detector (2) converts the analog signals into digital signals and transmits the digital signals to the control system (3).

2. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The UV lamp body (11) has an inverted U-shaped structure.

3. The automatic online monitoring system for UV lamps according to claim 2, characterized in that: Three UV lamp intensity sensors (4) are evenly distributed on the outer surface of the UV lamp body (11).

4. The automatic online monitoring system for UV lamps according to claim 3, characterized in that: The UV lamp (1) is located indoors, the UV lamp intensity sensor (4) is located directly below the UV lamp (1), and the UV lamp intensity automatic detector (2) and the control system (3) are located outdoors.

5. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The control system (3) is equipped with an audible and visual alarm.

6. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The control system (3) is equipped with a digital display screen for displaying the UV lamp working time, UV lamp working current value and UV lamp intensity value of each UV lamp tube (12).

7. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The control system (3) is equipped with a UV current PLC data storage D for storing the actual working current value of the UV lamp (12).

8. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The control system (3) is equipped with a UV intensity PLC data storage D for storing the actual working intensity value of the UV lamp tube (12).

9. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The control system (3) automatically tracks the working current of each UV lamp (12) and automatically issues an alarm when the current value is less than the alarm constant value.

10. The automatic online monitoring system for UV lamps according to claim 1, characterized in that: The UV lamp intensity sensor (4) transmits the analog signal to the UV lamp intensity automatic detector (2) via optical fiber. The UV lamp intensity automatic detector (2) converts the analog signal into a digital signal and then transmits the digital signal to the control system (3). When the signal is lower than the constant value, an automatic warning is issued.

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