CN219395109U

CN219395109U - Ultraviolet sterilization detection circuit and ultraviolet sterilization detection device

Info

Publication number: CN219395109U
Application number: CN202223516221.3U
Authority: CN
Inventors: 李文涛; 孙守斌; 崔荣莲
Original assignee: Qingdao Fluorescent Innovation Technology Co ltd
Current assignee: Qingdao Fluorescent Innovation Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-07-21
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of water quality ultraviolet sterilization, in particular to an ultraviolet sterilization detection circuit and an ultraviolet sterilization detection device. The ultraviolet sterilization detection circuit comprises: the ultraviolet light source circuit, the sampling conditioning circuit and the controller. The sampling conditioning circuit comprises a sampling circuit, a signal amplifying circuit and a filtering circuit. The ultraviolet sterilization detection device comprises an overcurrent device and a circuit assembly arranged on the overcurrent device. The light intensity of the ultraviolet light source is detected by the photosensitive element in the detection circuit, so that whether the ultraviolet light source fails and is not normally lightened can be judged, and whether the ultraviolet light source is aged or not and the condition of insufficient illumination can be judged.

Description

Ultraviolet sterilization detection circuit and ultraviolet sterilization detection device

Technical Field

The utility model relates to the technical field of water quality ultraviolet sterilization, in particular to an ultraviolet sterilization detection circuit and an ultraviolet sterilization detection device.

Background

The ultraviolet sterilization technology is to directly kill various bacteria, viruses, parasites and other pathogens in water by utilizing specially designed high-efficiency and high-intensity UVC wave band ultraviolet light to irradiate running water. The ultraviolet sterilization technology has wide sterilization range and high treatment speed, can kill common pathogenic microorganisms in a few seconds under certain radiation intensity generally, and can not introduce new impurities into water. Based on the advantages, the ultraviolet sterilization technology is widely applied to the technical fields of epidemic prevention, medical treatment, food processing and the like and purified water preparation.

The principle of ultraviolet sterilization is very simple, and sterilization is realized by ultraviolet rays generated by irradiation of an ultraviolet lamp. The sterilization effect is determined by the irradiation dose, the irradiation intensity is reduced by about 30% -50% with the aging of the ultraviolet lamp, and the irradiation dose (J/m 2) =irradiation time(s) ×uvc intensity (W/m 2), that is, the sterilization efficiency is affected with the aging of the ultraviolet lamp.

In water quality sterilization equipment, the ultraviolet lamp source is generally arranged in the water quality container and the pipeline, and in order to improve the sterilization effect and reduce the penetration of ultraviolet rays, the shells of the water quality container and the pipeline are generally made of non-light-transmitting materials, so that whether the working state of the ultraviolet lamp source is normal or not and whether aging occurs or not can not be judged from the outside, and the replacement is needed.

Disclosure of Invention

The utility model aims to provide an ultraviolet sterilization detection circuit and an ultraviolet sterilization detection device, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the utility model provides an ultraviolet sterilization detection circuit, which comprises an ultraviolet light source circuit, a sampling conditioning circuit, a controller and a control circuit, wherein the ultraviolet light source circuit is used for driving an ultraviolet light source to generate ultraviolet light, the sampling conditioning circuit is used for collecting illumination intensity signals and converting the illumination intensity signals into electric signals, the converted electric signals are input into the controller, and the controller is used for processing the electric signals input by the sampling conditioning circuit.

The sampling conditioning circuit comprises a sampling circuit and a signal amplifying circuit, wherein the sampling circuit converts illumination intensity into an electric signal and then inputs the electric signal into the signal amplifying circuit, and the signal amplifying circuit amplifies the input electric signal.

The sampling conditioning circuit further comprises a filter circuit, and the filter circuit performs filter processing on the electric signal input into the controller.

The ultraviolet light source circuit comprises a power supply drive and an ultraviolet light source, and the ultraviolet light source is composed of 1 or more ultraviolet lamps.

The ultraviolet sterilization detection device with the ultraviolet sterilization detection circuit comprises an overcurrent device and a circuit assembly arranged on the overcurrent device, wherein an ultraviolet light source and a photosensitive element are arranged on the circuit assembly, the part, close to the ultraviolet light source, of the overcurrent device is made of a light-transmitting material, and illumination generated by the ultraviolet light source is allowed to penetrate through the light-transmitting material and irradiate water entering the overcurrent device.

As a further optimization of the technical proposal, the overcurrent device comprises a shell, an inner cylinder is arranged in the shell,

the shell is of a cylindrical structure, two ends of the shell are respectively provided with a water outlet and a mounting hole, the side surface of the shell is also provided with a water inlet which is internally and externally communicated,

the inner cylinder is of a cylindrical structure penetrating up and down and is divided into a sealing section and an overflow section, an opening at one end of the sealing section corresponds to the water outlet, the outer diameter of the overflow section is smaller than the inner diameter of the shell, the overflow section is provided with overflow holes which are uniformly distributed along the outer diameter of the overflow section, the positions of the water inlet holes correspond to the positions of the overflow section, the sealing section and the inner wall of the shell are sealed by a sealing ring,

the opening at one end of the water outlet hole of the inner cylinder is covered with a glass plate and is pressed on the inner cylinder through a compression nut.

As a further optimization of the technical scheme, the circuit component is arranged between the compression nut and the glass plate, and the ultraviolet light source and the photosensitive element of the circuit component are arranged towards the glass plate.

As a further optimization of the technical scheme, a sealing ring is arranged between the compression nut and the glass plate, and an annular gasket is arranged between the inner cylinder and the water outlet hole.

Compared with the prior art, the utility model has the beneficial effects that:

according to the ultraviolet sterilization detection circuit and the ultraviolet sterilization detection device, the detection circuit is added in the existing light source circuit, and whether the ultraviolet light source fails and is not normally lighted can be judged on one hand, and whether the ultraviolet light source is aged or not can be judged on the other hand under the condition of insufficient illumination through detection of the illumination intensity of the ultraviolet light source by the photosensitive element in the detection circuit. The controller may generate an alarm signal based on both conditions to alert the consumer to a need to replace the device or to perform maintenance procedures on the device.

Drawings

FIG. 1 is a functional block diagram of an ultraviolet sterilization detection circuit according to the present utility model;

FIG. 2 is a schematic diagram of a sampling conditioning circuit according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an ultraviolet light source circuit in an embodiment of the utility model;

FIG. 4 is a schematic diagram of the overall structure of the present utility model;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a cross-sectional view of the housing of the present utility model;

FIG. 7 is a cross-sectional view of the same in the present utility model;

fig. 8 is a schematic diagram of a circuit board according to the present utility model.

Fig. 9 is a cross-sectional view of a holder according to the present utility model.

The meaning of each reference sign in the figure is:

1. an overcurrent device; 2. a circuit assembly; 11. a housing; 12. an inner cylinder; 13. a glass plate; 14. a compression nut; 15. an annular gasket; 16. a seal ring; 17. a cable; 111. a water inlet hole; 112. a water outlet hole; 113. a mounting hole; 121. a sealing section; 122. an overcurrent section; 123. an overflow hole; 141. a wire through hole; 21. an ultraviolet light source; 22. photosensitive element

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

Referring to fig. 1-3, the present embodiment provides an ultraviolet sterilization detection circuit, which includes an ultraviolet light source circuit for driving an ultraviolet light source to generate ultraviolet light, a sampling and conditioning circuit for collecting illumination intensity signals and converting the illumination intensity signals into electrical signals, and inputting the converted electrical signals into a controller, wherein the controller is used for processing the electrical signals input by the sampling and conditioning circuit.

In this embodiment, the sampling circuit is a photodiode D1, and the +terminal of D1 is connected to the-terminal of the op-amp U1, and the-terminal of D1 is grounded. An RC filter circuit is connected between the output and input-ends of the operational amplifier U1, namely R1 and C1 in the embodiment are connected in parallel.

Example 2

Referring to fig. 4-9, the present embodiment provides an ultraviolet sterilization detection device using the ultraviolet sterilization detection circuit provided in the previous embodiment, which includes an overcurrent device 1 and a circuit assembly 2 mounted on the overcurrent device 1, wherein the circuit assembly 2 is provided with an ultraviolet light source 21 and a photosensitive element 22, and a portion of the overcurrent device 1 near the ultraviolet light source 21 is made of a transparent material, which allows the light generated by the ultraviolet light source 21 to pass through the transparent material and irradiate the water entering the overcurrent device 1.

As a further optimization of this technical scheme, the overcurrent device 1 includes a casing 11, an inner cylinder 12 is installed in the casing 11, the casing 11 is in a cylindrical structure, two ends of the casing 11 are respectively provided with a water outlet 112 and a mounting hole 113, the side surface of the casing is also provided with a water inlet 111 which is internally and externally communicated, the inner cylinder 12 is in a cylindrical structure which penetrates up and down, the casing is divided into a sealing section 121 and an overcurrent section 122, an opening at one end of the sealing section 121 corresponds to the water outlet 112, the outer diameter of the overcurrent section 122 is smaller than the inner diameter of the casing 11, the overcurrent section 122 is provided with an overcurrent hole 123, the position of the water inlet 111 corresponds to the position of the overcurrent section 122, the sealing section 121 and the inner wall of the casing 11 are sealed through a sealing ring 16, and a glass plate 13 is covered on the opening at one end of the water outlet 112 of the inner cylinder 12 and is crimped on the inner cylinder 12 through a compression nut 14.

During operation, water enters the shell 11 from the water inlet 111, and because the outer wall of the sealing section 121 of the inner barrel 12 and the inner wall of the shell 11 are sealed by the sealing ring 16, water can only enter the inner barrel 12 from the overflow hole 123 of the overflow section 122, and because the overflow holes 123 are uniformly distributed along the outer diameter of the overflow section 122, water can form a certain turbulence after entering the inner barrel 12, which is helpful for ultraviolet disinfection.

As a further refinement of the present solution, the circuit assembly 2 is mounted between the compression nut 14 and the glass plate 13 with its uv light source 21 and photosensitive element 22 mounted towards the glass plate 13. The compression nut 14 is further provided with a wire through hole 141, and the cable is electrically connected with the internal circuit assembly 2 through the wire through hole 141. In operation, the ultraviolet light source 21 is illuminated and the ultraviolet light generated is directed through the glass plate 13 to disinfect the water entering the inner barrel 12. Meanwhile, the photosensitive element 22 can judge the illumination intensity of the ultraviolet light source 21, and convert the illumination intensity into an electrical signal to be transmitted to the controller for judgment.

As a further optimization of the technical scheme, a sealing ring 16 is arranged between the compression nut 14 and the glass plate 13, so that the sealing effect is achieved, and the water in the inner cylinder 12 is prevented from entering the other side of the glass plate to be in contact with the circuit assembly 2. An annular gasket 15 is arranged between the inner cylinder 12 and the water outlet 112, so that water in the inner cylinder 12 can be prevented from entering a gap between the inner cylinder 12 and the shell 11, and bacteria can be prevented from growing.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An ultraviolet sterilization detection circuit is characterized in that: comprising

The ultraviolet light source circuit is used for driving the ultraviolet light source to generate ultraviolet light,

the sampling conditioning circuit is used for collecting the illumination intensity signal, converting the illumination intensity signal into an electric signal and inputting the converted electric signal into the controller,

and the controller is used for processing the electric signals input by the sampling conditioning circuit.

2. The ultraviolet sterilization detection circuit according to claim 1, wherein: the sampling conditioning circuit comprises a sampling circuit and a signal amplifying circuit, wherein the sampling circuit converts illumination intensity into an electric signal and then inputs the electric signal into the signal amplifying circuit, and the signal amplifying circuit amplifies the input electric signal.

3. The ultraviolet sterilization detection circuit according to claim 2, wherein: the sampling conditioning circuit also comprises a filter circuit, and the filter circuit carries out filter processing on the electric signals input into the controller.

4. The ultraviolet sterilization detection circuit according to claim 1, wherein: the ultraviolet light source circuit comprises a power supply drive and an ultraviolet light source, and the ultraviolet light source consists of 1 or more ultraviolet lamps.

5. An ultraviolet sterilization detection device employing an ultraviolet sterilization detection circuit according to any one of claims 1-4, wherein: comprises an overcurrent device (1) and a circuit component (2) arranged on the overcurrent device (1),

the circuit component (2) is provided with an ultraviolet light source (21) and a photosensitive element (22),

the part of the overcurrent device (1) close to the ultraviolet light source (21) is made of a light-transmitting material, and the light generated by the ultraviolet light source (21) can penetrate through the light-transmitting material to irradiate water entering the overcurrent device (1).

6. The ultraviolet sterilization detection device of claim 5, wherein: the overcurrent device (1) comprises a shell (11), an inner cylinder (12) is arranged in the shell (11),

the shell (11) is of a tubular structure, two ends of the shell are respectively provided with a water outlet (112) and a mounting hole (113), the side surface of the shell is also provided with a water inlet (111) communicated with the inside and the outside,

the inner cylinder (12) is of a cylindrical structure penetrating up and down, and is divided into a sealing section (121) and an overflow section (122), an opening at one end of the sealing section (121) corresponds to the water outlet hole (112), the outer diameter of the overflow section (122) is smaller than the inner diameter of the shell (11), the overflow section (122) is provided with overflow holes (123), the overflow holes (123) are uniformly distributed along the outer diameter of the overflow section (122), the position of the water inlet hole (111) corresponds to the position of the overflow section (122), the sealing section (121) and the inner wall of the shell (11) are sealed by a sealing ring (16),

the opening at one end of the water outlet hole (112) of the inner cylinder (12) is covered with a glass plate (13), and is pressed and connected on the inner cylinder (12) through a compression nut (14).

7. The ultraviolet sterilization detection device of claim 6, wherein: the circuit assembly (2) is arranged between the compression nut (14) and the glass plate (13), and the ultraviolet light source (21) and the photosensitive element (22) of the circuit assembly are arranged towards the glass plate (13).

8. The ultraviolet sterilization detection device of claim 7, wherein: a sealing ring (16) is arranged between the compression nut (14) and the glass plate (13).

9. The ultraviolet sterilization detection device of claim 8, wherein: an annular gasket (15) is arranged between the inner cylinder (12) and the water outlet hole (112).