Ozone disinfection control device for secondary pump room

Abstract

The utility model relates to the technical field of tap water production equipment, and discloses a secondary pump room ozone disinfection control device which comprises a water tank arranged in a secondary pump room, an ozone generating and adding device connected with the water tank and an ozone tail gas centralized treatment device, the ozone generating and adding device comprises an ozone online generator, a circulating pump, a water ejector and a pored dosing pipe; the ozone tail gas centralized treatment device comprises an ozone tail gas centralized treatment area, an ozone tail gas destructor is independently placed in the ozone tail gas centralized treatment area, and gas obtained after overflowing gas in the water tank is treated by the ozone tail gas destructor is exhausted out of the pump room through a tail gas one-way exhaust valve. The ozone online preparation device can ensure that ozone is uniformly added and fully dissolved, and can effectively treat tail gas generated during ozone online preparation and ozone which is not effectively dissolved in the water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of tap water production equipment, in particular to an ozone disinfection control device for a secondary pump room. Background Art

[0002] In the fields of construction and water treatment technology, ozone disinfection has been widely used due to its advantages of high efficiency, rapidity, small footprint, and high removal effect on chlorine-resistant bacteria. In the secondary water supply pump room, which is closer to the treatment environment of the end user, it is more convenient and effective to directly use an ozone online generator to prepare ozone. The application of ozone disinfection mainly needs to solve two major problems. The first is the ozone addition method. How to ensure that the ozone added to the water tank can achieve uniform diffusion. Effective disinfection is a key step. The second is the treatment of ozone exhaust gas. Even with the best diffusion system, a certain amount of ozone will still be emitted. This air containing a certain amount of ozone is not suitable for breathing. Although ozone can be reduced to oxygen, this reduction process is very slow at room temperature. Therefore, safety measures need to be taken to treat the ozone exhaust gas.

[0003] A Chinese utility model patent, publication number CN221479659U, discloses an ozone water purification device comprising a clean water tank, a circulation pump, an ozone delivery element, and a flow control valve. The clean water tank has a water outlet at the bottom and a water inlet at the top. The circulation pump connects the water outlet and the water inlet via a pipeline and is configured to direct water in the clean water tank from the water outlet to the water inlet. The ozone delivery element is configured to draw ozone into the pipeline downstream of the circulation pump. The flow control valve is arranged in parallel with the pipeline downstream of the ozone delivery element and is configured to adjust the amount of water flowing into the ozone delivery element. The water in the clean water tank circulates under the action of the circulation pump, while the ozone delivery element provides ozone to the water. The flow control valve, arranged in parallel with the ozone delivery element, regulates the water flow in the pipeline connected to the ozone delivery element, thereby controlling the amount of ozone incorporated into the water.

[0004] For example, a Chinese invention patent application with publication number CN118619442A discloses a method for controlling ozone dosage based on real-time ultraviolet spectral monitoring. The method includes a step S for determining whether ozone addition is necessary and a step P for quantitatively controlling ozone dosage. In step S, a data set is established by continuously acquiring water samples and using a UV-visible full-wavelength scanner to obtain absorbance data, and LDA linear discriminant analysis is performed to determine the ozone dosage discriminant formula. Step P involves continuously monitoring water samples, screening data, determining ultraviolet absorption spectrum values, calculating the total ozone dosage, and constructing a data set E for multivariate linear regression analysis to establish a quantitative control formula for ozone dosage. This invention achieves precise control of ozone dosage in secondary treated effluent through ultraviolet spectral data and chemometric methods.

[0005] While these existing patents can improve ozone dosing, they don't address key issues like how to handle excess ozone and tail gas, or how to control operational safety. Therefore, effectively treating tail gas generated during online ozone production, or ozone that fails to dissolve in the water tank, is a crucial and pressing issue for secondary pump rooms. Utility Model Content

[0006] The purpose of the present utility model is to provide an ozone disinfection control device for a secondary pump room that can effectively treat the exhaust gas generated during the online preparation of ozone or the ozone that cannot be effectively dissolved in the water tank, so as to at least provide a beneficial choice or create conditions for solving one or more technical problems existing in the prior art.

[0007] In order to achieve the above objectives, the present utility model adopts the following technical solutions.

[0008] A secondary pump room ozone disinfection control device comprises a water tank installed in the secondary pump room, an ozone generating and dosing device connected to the water tank, and an ozone tail gas centralized treatment device; the ozone generating and dosing device comprises an ozone online generator, a circulation pump, a water ejector, and a perforated dosing pipe; the circulation pump, the water ejector, and the perforated dosing pipe are installed on the water circulation pipeline of the water tank to realize the circulating injection of water, and the ozone generated by the ozone online generator enters the water ejector; the ozone tail gas centralized treatment device comprises an ozone tail gas centralized treatment area, in which an ozone tail gas destroyer is separately placed; the ozone tail gas centralized treatment area is physically separated from the indoor area of ​​the pump room, and the overflow gas in the water tank is discharged from the pump room through the tail gas one-way exhaust valve after being treated by the ozone tail gas destroyer.

[0009] More preferably, an ozone dosing solenoid valve is provided on the air supply pipe connecting the ozone online generator and the water ejector.

[0010] More preferably, a gas flow meter is provided on the gas supply pipe connecting the ozone online generator and the water ejector.

[0011] More preferably, the water tank is provided with a water tank overflow valve, a water tank outlet valve and a water tank inlet pipe.

[0012] More preferably, an air ultraviolet disinfection device is provided in the secondary pump room.

[0013] More preferably, an exhaust system and an air ozone concentration detector are provided in the secondary pump room, and the exhaust system and the air ozone concentration detector are connected to a PLC control system for controlling the start and stop of the exhaust system according to the ozone concentration detected by the air ozone concentration detector.

[0014] More preferably, the number of the air ozone concentration detector is one, two or more. When the number of the air ozone concentration detector is two or more, the air ozone concentration detectors are dispersedly distributed.

[0015] More preferably, the exhaust system is one, two or more sets.

[0016] More preferably, the exhaust system includes several exhaust fans; the exhaust channel of the exhaust fan has two air outlets, one is located in the basement where a secondary pump room is provided, and the other is located on the ground; a pump room one-way exhaust valve is provided on the air outlet located in the basement, and a pump room exhaust electric valve is provided on the exhaust outlet located on the ground.

[0017] The utility model has at least the following beneficial effects.

[0018] 1. The utility model sets up a special ozone tail gas centralized treatment device, which can better collect and treat the ozone that is not completely dissolved in the water tank, ensure the safe and stable operation of the secondary water supply pump room, and thus reduce the serious safety hazards caused to personnel and the environment.

[0019] 2. The utility model increases the uniformity of ozone mixing in the water tank by arranging a circulation pump, a water ejector, and a perforated drug feeding pipe, thereby achieving the purpose of more effective disinfection.

[0020] 3. The utility model installs an air ultraviolet disinfection device and an exhaust system in the secondary water supply pump room, and is equipped with an air ozone concentration detector, which can effectively monitor the ozone residue in the pump room air in real time, making it easier for the operation and maintenance unit to judge abnormal situations.

[0021] Fourth, by setting two exhaust ports in the basement and above the ground on the exhaust system, and respectively setting a pump room one-way exhaust valve and a pump room exhaust electric valve on the two exhaust ports, it is convenient to discharge the air in the pump room to different areas according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a structural schematic diagram of the secondary pump room ozone disinfection control device provided by the present invention.

[0023] Description of the accompanying drawings.

[0024] 1: Water tank, 2: Ozone online generator, 3: PLC control system, 4: Circulation pump, 5: Water ejector, 6: Ozone exhaust destroyer, 7: Dosing pipe with holes, 8: Air ultraviolet disinfection device, 9: Exhaust system, 10: Air ozone concentration detector, 11: Ozone dosing solenoid valve, 12: Gas flow meter, 13: Water tank overflow valve, 14: Water tank outlet valve, 15: Exhaust one-way exhaust valve, 16: Water tank inlet pipe, 17: Ozone exhaust centralized treatment area.

[0025] 9-1: One-way exhaust valve in the pump room, 9-2: Electric exhaust valve in the pump room. DETAILED DESCRIPTION

[0026] The following description of the embodiments of the present invention is further described in conjunction with the accompanying drawings to make the technical solutions and beneficial effects of the present invention clearer and more specific. The following description of the embodiments with reference to the accompanying drawings is illustrative and intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention.

[0028] Reference Figure 1 As shown, a secondary pump room ozone disinfection control device includes a water tank 1 installed in the secondary pump room, an ozone generating and dosing device connected to the water tank 1, and an ozone tail gas centralized treatment device; the ozone generating and dosing device includes an ozone online generator 2, a circulating pump 4, a water ejector 5, a perforated dosing pipe 7, an ozone dosing solenoid valve 11 and a gas flow meter 12, the circulating pump 4, the water ejector 5 and the perforated dosing pipe 7 are installed on the water circulation pipe of the water tank 1 to realize the circulating injection of water, the The ozone generated by the ozone online generator 2 enters the water injector 5 after passing through the ozone dosing solenoid valve 11 and the gas flow meter 12; the ozone exhaust centralized treatment device includes an ozone exhaust centralized treatment area 17, and an ozone exhaust destroyer 6 is separately placed in the ozone exhaust centralized treatment area 17; the ozone exhaust centralized treatment area 17 is physically separated from the indoor area of ​​the pump room, and the overflow gas in the water tank 1 is discharged from the pump room after being treated by the ozone exhaust destroyer 6 through the exhaust one-way exhaust valve 15.

[0029] The water tank 1 is equipped with a water tank overflow valve 13, a water tank outlet valve 14 and a water tank inlet pipe 16 to facilitate water inlet and outlet and water level control.

[0030] The secondary pump room is also equipped with an air ultraviolet disinfection device 8, an exhaust system 9 and an air ozone concentration detector 10. The air ultraviolet disinfection device 8 and the exhaust system 9 are used to ensure indoor air circulation and quality, and the air ozone concentration detector 10 is used to monitor indoor ozone leakage in real time; the air ultraviolet disinfection device 8, the exhaust system 9 and the air ozone concentration detector 10 are connected to the PLC control system 3 for automatic control.

[0031] In this embodiment, the exhaust system 9 comprises several exhaust fans. The exhaust duct has two outlets: one located in the basement, where the secondary pump room is located, and one located at ground level. The basement outlet is equipped with a pump room one-way exhaust valve 9-1, and the ground-level outlet is equipped with a pump room exhaust motorized valve 9-2. To ensure that ambient noise within the pump room is kept within a controlled range, the exhaust system can utilize multiple exhaust fans, or a high-power blower. The pump room one-way exhaust valve 9-1 and the pump room exhaust motorized valve 9-2 are connected to the exhaust system 9 via stainless steel circular / square cross-section exhaust ducting. Under normal operation, any small amount of ozone escaping from the pump room can be discharged outdoors through the pump room one-way exhaust valve 9-1 without affecting the overall air quality of the basement level. In the event of an emergency (such as a large ozone leak), the pump room exhaust motorized valve 9-2 is opened to expel as much ozone as possible above ground level, thereby maintaining the air quality of the basement level. In some embodiments, an air extraction device such as an air extraction pump is provided in conjunction with the pump room air extraction electric valve 9-2 to further improve the air extraction effect in emergency situations.

[0032] The utility model provides an ozone disinfection control device for a secondary pump room, and its working principle is as follows.

[0033] 1) During normal operation, water starts to flow into the water tank inlet pipe 16, the ozone online generator 2 starts to quickly prepare ozone online, the ozone dosing solenoid valve 11 is opened, and the ozone dosage is obtained from the gas flow meter 12 in real time. To ensure uniform ozone dosage and sufficient mixing, the circulation pump 4 is turned on through a circulation pipeline, that is, water flows out from one side of the water tank through the water ejector 5 so that the ozone and water are fully mixed to achieve high dosing efficiency. The mixed ozone water returns to the water tank from the other side of the water tank and passes through the perforated dosing pipe 7. The mixed ozone water is fully diffused in the water tank to achieve complete disinfection of the water in the water tank.

[0034] 2) During disinfection, some ozone may escape from the water tank or fail to fully dissolve in the water, necessitating exhaust gas treatment. This exhaust gas treatment is performed simultaneously with the disinfection process. Specifically, exhaust gas destroyer 6 collects the exhaust gas, and exhaust one-way exhaust valve 15 is opened to discharge the catalytically treated (and harmless) gas. Every four hours, ultraviolet air disinfection device 8, an exhaust system 9, and pump room one-way exhaust valve 9-1 are activated to disinfect the air in the pump room while ensuring air circulation.

[0035] 3) When the data of the air ozone concentration detector 10 monitored by the PLC control system 3 reaches 0.08ppm (about 0.16 mg / m 3) or above, the alarm signal is sent back to the PLC control system, and the system begins to judge the abnormal situation: 31) If only one air ozone concentration detector 10 reaches 0.08ppm or above for 30 minutes, the PLC control system 3 remains unchanged, and maintenance personnel are arranged. If necessary, they should wear breathing masks first, rush to the pump room to verify the specific situation and calibrate this air ozone concentration detector with a portable instrument. 32) If the data of several consecutive air ozone concentration detectors 10 reach 0.08ppm or above, the PLC control system 3 will turn off the ozone online generator 2, the ozone dosing solenoid valve 11, and the exhaust one-way exhaust valve 15, and simultaneously turn on the air ultraviolet disinfection device 8, the two exhaust systems 9, and the pump room one-way exhaust valve 9-1, and exhaust the air in the pump room to above the ground as much as possible. After ventilation for 60 minutes, when the data of the air ozone concentration detector 10 drops below 0.08ppm, the maintenance personnel will wear breathing masks and enter the pump room equipment and pipelines to check, find leaks and deal with them in time. When necessary, emergency water tanks will be used to supply water to ensure the safety of water quality and the environment for users.

[0036] Compared with the existing technology, the secondary pump room ozone disinfection control device provided by the present invention has the following advantages: 1) By setting up a special ozone exhaust centralized treatment device, the ozone that is not completely dissolved in the water tank can be better collected and processed, ensuring the safe and stable operation of the secondary water supply pump room, thereby reducing serious safety hazards to personnel and the environment; 2) In addition to considering safety, the present invention increases the uniformity of ozone mixing in the water tank by setting up a circulation pump 4, a water ejector 5, and a perforated dosing pipe 7, thereby achieving the purpose of more effective disinfection; 3) By installing an air ultraviolet disinfection device and an exhaust system in the secondary water supply pump room, and equipping it with an air ozone concentration detector, the air ozone residue in the pump room can be effectively monitored in real time, which is convenient for the operation and maintenance unit to judge abnormal conditions.

[0037] It should be noted that the ozone online generator 2, circulation pump 4, water ejector 5, perforated dosing pipe 7, ozone dosing solenoid valve 11, gas flow meter 12, ozone tail gas destroyer 6, tail gas one-way exhaust valve 15, pump room one-way exhaust valve 9-1, pump room exhaust electric valve 9-2, PLC control system 3 and other devices are all commercially available products. As for the model selection and connection circuit design of the PLC control system 3, they are common technical knowledge mastered by those skilled in the art and will not be elaborated here.

[0038] It should also be noted that, in the description of the present invention, directional words such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this utility model, "at least" means one or more, unless otherwise specifically defined.

[0040] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In the utility model, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "below," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "above," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] Through the above description of the structure and principle, those skilled in the art should understand that the present invention is not limited to the above-mentioned specific embodiments. Improvements and substitutions based on the present invention using known technologies in the art fall within the scope of protection of the present invention, which is defined by the claims and their equivalents. Any parts not described in the specific embodiments are prior art or common knowledge.

Claims

1. A secondary pump room ozone disinfection control device, characterized in that: It includes a water tank installed in the secondary pump room, an ozone generating and dosing device connected to the water tank, and an ozone exhaust centralized treatment device; the ozone generating and dosing device includes an ozone online generator, a circulation pump, a water ejector and a perforated dosing pipe, the circulation pump, the water ejector and the perforated dosing pipe are installed on the water circulation pipeline of the water tank to realize the circulating injection of water, and the ozone generated by the ozone online generator enters the water ejector; the ozone exhaust centralized treatment device includes an ozone exhaust centralized treatment area, and an ozone exhaust destroyer is separately placed in the ozone exhaust centralized treatment area; the ozone exhaust centralized treatment area is physically separated from the indoor area of ​​the pump room, and the overflow gas in the water tank is discharged from the pump room through the exhaust one-way exhaust valve after being treated by the ozone exhaust destroyer.

2. A secondary pump room ozone disinfection control device according to claim 1, characterized in that: An ozone dosing electromagnetic valve is provided on the air supply pipeline connecting the ozone online generator and the water ejector.

3. A secondary pump room ozone disinfection control device according to claim 1, characterized in that: A gas flow meter is provided on the gas supply pipeline connecting the ozone online generator and the water ejector.

4. A secondary pump room ozone disinfection control device according to claim 1, characterized in that: The water tank is provided with a water tank overflow valve, a water tank outlet valve and a water tank water inlet pipe.

5. A secondary pump room ozone disinfection control device according to claim 1, characterized in that: An air ultraviolet disinfection device is provided in the secondary pump room.

6. A secondary pump room ozone disinfection control device according to claim 1 or 5, characterized in that: An exhaust system and an air ozone concentration detector are provided in the secondary pump room. The exhaust system and the air ozone concentration detector are connected to a PLC control system for controlling the start and stop of the exhaust system according to the ozone concentration detected by the air ozone concentration detector.

7. A secondary pump room ozone disinfection control device according to claim 6, characterized in that: There may be one, two or more air ozone concentration detectors. When there are two or more air ozone concentration detectors, the air ozone concentration detectors are dispersedly distributed.

8. A secondary pump room ozone disinfection control device according to claim 6, characterized in that: The exhaust system may be one, two or more sets.

9. A secondary pump room ozone disinfection control device according to claim 6, characterized in that: The exhaust system includes several exhaust fans; the exhaust channel of the exhaust fan has two air outlets, one located in the basement where a secondary pump room is provided, and the other located on the ground; a pump room one-way exhaust valve is provided on the air outlet located in the basement, and a pump room exhaust electric valve is provided on the exhaust outlet located on the ground.

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