An ultraviolet online UVT detector

Abstract

The invention belongs to the technical field of ultraviolet sensors, and particularly relates to an ultraviolet online UVT detector, comprising an ultraviolet sensor, a rotating rod and a quartz plate, wherein the quartz plate is eccentrically fixed at one end of the rotating rod, the ultraviolet sensor is arranged above the quartz plate, and the quartz plate is arranged above an ultraviolet lamp. Firstly, a high-purity quartz plate is used as a detection medium, a monitoring value is calibrated as a basic value, the quartz plate is rotated, and the detected water occupies the original space of the quartz plate, and the measured value of the detected water is obtained. The measured value of the detected water is compared with the basic value to determine whether the obtained ratio is within a required range. If the UVT value of the detected water is lower than the required value, the light intensity of the ultraviolet lamp is increased by a frequency converter, the sterilization effect is enhanced, and the water quality is guaranteed. The invention places the quartz plate and the monitored water in the same environmental conditions, thus ensuring the same detection conditions, so that the UVT value can be monitored online in real time, and the accuracy of the detection is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of ultraviolet sensors, and in particular relates to an ultraviolet online UVT detector. Background Art

[0002] At present, ultraviolet lamps are often used for water purification and sterilization, and ultraviolet sensors are used to detect the working status of ultraviolet lamps to detect the ultraviolet sterilization effect; the main factor affecting the ultraviolet sterilization effect is the ultraviolet transmittance (UVT), and the important factor affecting the ultraviolet sterilization effect is the ultraviolet transmittance of the sterilization medium (water) or the medium absorption rate; the ultraviolet transmittance and the medium absorption rate are affected by factors such as dissolved organic matter, inorganic matter and undissolved suspended matter in water. In the past, detection was generally sampling detection, which is more troublesome and cannot achieve real-time online monitoring. Therefore, how to detect the ultraviolet transmittance (UVT) online in real time is a research direction in the field of water purification and sterilization. Summary of the invention

[0003] The invention provides an ultraviolet online UVT detector, which can solve the problems pointed out in the background technology.

[0004] An ultraviolet online UVT detector comprises an ultraviolet sensor, a rotating rod and a quartz plate. The quartz plate is eccentrically fixed to one end of the rotating rod, the ultraviolet sensor is arranged above the quartz plate, the quartz plate is arranged above the ultraviolet lamp, the thickness of the quartz plate is 5-30mm, and the distance between the quartz plate and the ultraviolet sensor and the distance between the quartz plate and the ultraviolet lamp are within 1mm.

[0005] Preferably, the rotating rod is rotated by manual drive or by a stepping motor.

[0006] Preferably, the quartz plate is a high-purity quartz plate.

[0007] A detection method of an ultraviolet online UVT detector is adopted to detect by the ultraviolet online UVT detector described above, and the specific steps are as follows: the first step: driving the rotating rod to rotate, so that the quartz plate rotates into the gap between the ultraviolet lamp and the ultraviolet sensor, recording the measured value of the ultraviolet sensor at this time, and calibrating it as 100%; the second step: driving the rotating rod to rotate, so that the quartz plate rotates out of the gap between the ultraviolet lamp and the ultraviolet sensor, and the detected water occupies the gap between the ultraviolet lamp and the ultraviolet sensor at this time, recording the measured value of the ultraviolet sensor at this time, and comparing it with the measured value in the first step, the ratio is the UVT value of the monitored water, if the ratio is 80%, then the UVT value of the monitored water is 80%; the third step: comparing whether the UVT value of the monitored water (such as 80%) in the second step is within the required range, if the UVT value of the monitored water in the second step is lower than the required value, then increasing the light intensity of the ultraviolet lamp through the frequency converter, enhancing the sterilization effect, and ensuring the water quality.

[0008] The invention provides an ultraviolet online UVT detector. First, a high-purity quartz plate is used as a detection medium, a monitoring value is calibrated as a basic value, the quartz plate is rotated, and the detected water occupies the original space of the quartz plate, so that the thickness of the detected water and the quartz plate are equivalent, and the measured value of the detected water is obtained. The measured value of the detected water is compared with the basic value, and the obtained ratio is determined to be within a required range. If the UVT value of the detected water is lower than the required value, the light intensity of the ultraviolet lamp is increased by a frequency converter to enhance the sterilization effect and ensure the water quality. The utility model places the quartz plate and the monitored water in the same environmental conditions, thereby ensuring the same detection conditions, so that the UVT value can be monitored online in real time, and the accuracy of the detection is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention,

[0010] Figure 2 This is a schematic diagram of the state of the present invention when detecting a quartz plate.

[0011] Figure 3 This is a schematic diagram of the state of the present invention when detecting the monitored water.

[0012] Figure 4 For the present invention Figure 2 Installation diagram of the status,

[0013] Figure 5 For the present invention Figure 3 Installation diagram of the status,

[0014] Description of reference numerals:

[0015] Numbers in the figure: 1, UV sensor; 2, rotating rod; 3, quartz plate; 4, stepping motor; DETAILED DESCRIPTION

[0016] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0017] like Figure 1-5 As shown, an ultraviolet online UVT detector provided by an embodiment of the present invention includes an ultraviolet sensor 1, a rotating rod 2 and a quartz plate 3. The quartz plate 3 is a high-purity quartz plate. The quartz plate 3 is eccentrically fixed to one end of the rotating rod 2. During installation, the ultraviolet sensor 1 is installed on the water purifier housing 6 and is arranged directly above the quartz plate 3. The quartz plate 3 is arranged directly above the ultraviolet lamp 8. The rotating rod 2 is rotatably connected to the water purifier housing 6 through a rotating bearing 5. The connection is sealed with a sealing gasket 7. The rotating rod 2 is rotated by manual drive or by a stepper motor 4 to drive the rotating rod 2 to rotate and change the position of the quartz plate 3. In this embodiment, a stepper motor is used for driving. The thickness of the quartz plate 3 is 5-30 mm. In this embodiment, the thickness of the quartz plate 3 is 10 mm.

[0018] The distance between the quartz plate 3 and the ultraviolet sensor 1 and the distance between the quartz plate 3 and the ultraviolet lamp 8 are within 1 mm. A distance within 1 mm can ensure that the thickness of the detected water is equivalent to the thickness of the quartz plate 3, and can reflect the detection data more accurately.

[0019] A detection method of an ultraviolet online UVT detector, combined with Figure 2-5 As shown, the above-mentioned ultraviolet online UVT detector is used for detection, and the specific steps are as follows: the first step: manually or by a motor to drive the rotating rod 2 to rotate, so that the quartz plate 3 rotates into the gap between the ultraviolet lamp 8 and the ultraviolet sensor 1, and the measured value of the ultraviolet sensor 1 is recorded at this time and calibrated as 100%; the second step: driving the rotating rod 2 to rotate, so that the quartz plate 3 rotates out of the gap between the ultraviolet lamp 8 and the ultraviolet sensor 1, and the detected water occupies the gap between the ultraviolet lamp 8 and the ultraviolet sensor 1, and the measured value of the ultraviolet sensor 1 is recorded at this time, and the measured value is compared with the measured value in the first step, and the ratio is the UVT value of the monitored water. If the ratio is 80%, the UVT value of the monitored water is 80%; the third step: comparing whether the UVT value of the monitored water (such as 80%) in the second step is within the required range, if the UVT value of the monitored water in the second step is lower than the required value, the light intensity of the ultraviolet lamp 8 is increased by the frequency converter to enhance the sterilization effect and ensure the water quality.

[0020] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An online ultraviolet UVT detector, characterized in that: The invention comprises an ultraviolet sensor (1), a rotating rod (2) and a quartz plate (3), wherein the quartz plate (3) is eccentrically fixed to one end of the rotating rod (2), the ultraviolet sensor (1) is arranged above the quartz plate (3), and the quartz plate (3) is arranged above an ultraviolet lamp, the distance between the quartz plate (3) and the ultraviolet sensor (1) and the distance between the quartz plate (3) and the ultraviolet lamp are within 1 mm, and the thickness of the quartz plate (3) is 5-30 mm.

2. The ultraviolet online UVT detector according to claim 1, characterized in that: The rotating rod (2) is driven to rotate manually or by a stepping motor (4).

3. The ultraviolet online UVT detector according to claim 1, characterized in that: The quartz plate (3) is a high-purity quartz plate.

4. A detection method of an ultraviolet online UVT detector, characterized in that: The detection is performed using the ultraviolet online UVT detector described in any one of claims 1 to 3, and the specific steps are as follows: the first step: driving the rotating rod (2) to rotate so that the quartz plate (3) rotates into the gap between the ultraviolet lamp and the ultraviolet sensor (1), recording the measurement value of the ultraviolet sensor (1) at this time, and calibrating it as 100%; Step 2: driving the rotating rod (2) to rotate so that the quartz plate (3) rotates out of the gap between the ultraviolet lamp and the ultraviolet sensor (1). At this time, the water to be detected occupies the gap between the ultraviolet lamp and the ultraviolet sensor (1). The measured value of the ultraviolet sensor (1) at this time is recorded and compared with the measured value in the first step. The ratio is the UVT value of the monitored water. Step 3: Compare the UVT value of the water monitored in step 2 to see if it is within the required range.

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