Oil-in-water treatment system and cooling water system

Abstract

The utility model provides an oil-in-water treatment system and a cooling water system. The oil-in-water treatment system comprises a detection pipeline, a detection device and an oil-in-water analyzer, wherein the detection device and the oil-in-water analyzer are arranged on the detection pipeline; the oil-in-water analyzer is connected with the detection device; wherein the detection device comprises a first electromagnetic valve, an oil-water mixer, a peristaltic pump, a first conversion connector, a sensor probe detection chamber, an ultraviolet fluorescence sensor, a second conversion connector and a second electromagnetic valve, the oil-in-water treatment system is mounted on a main path of a cooling water system, and oil-in-water measurement of cooling water is completed once by opening and closing the electromagnetic valves; and the first electromagnetic valve and the second electromagnetic valve can be continuously opened to detect and obtain the change of the oil content in water of the cooling water within a period of time, so that the detection efficiency of oil in water in the cooling water system is improved.

Description

Technical Field

[0001] This utility model relates to the field of water system treatment, and in particular to an oil treatment system in water and a cooling water system. Background Technology

[0002] In power plants, cooling water systems are a crucial component for maintaining the normal operation of equipment. Power generation equipment (such as steam turbines and generators) generates a significant amount of heat during operation, and the cooling water system removes this heat, ensuring the equipment remains within a reasonable temperature range. Currently, power plants typically discharge used cooling water into natural water bodies such as rivers and oceans. However, if the cooling water contains oil contaminants and is discharged directly without treatment, it will not only affect the survival of aquatic life but also cause long-term damage to water quality.

[0003] To ensure that cooling water discharge meets standards, oil content testing is typically performed. Current methods often involve manually sampling cooling water for composition analysis to determine if it's safe for direct discharge. However, this sampling method lacks real-time processing capabilities and cannot respond promptly when the excessive oil content is due to internal anomalies in the cooling water system, such as equipment lubricant leaks or pipe corrosion. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an oil-water treatment system to solve the above problems, which includes: a detection pipe, a detection device installed on the detection pipe, and an oil-water analyzer; the oil-water analyzer is connected to the detection device;

[0005] The detection device includes: a first solenoid valve, an oil-water mixer, a peristaltic pump, a first adapter, a sensor probe detection chamber, an ultraviolet fluorescence sensor, a second adapter, and a second solenoid valve.

[0006] The first solenoid valve is located between the water inlet of the detection pipe and the water inlet of the oil-water mixer;

[0007] The peristaltic pump is located between the outlet of the oil-water mixer and the first conversion connector;

[0008] The two sides of the sensor probe detection chamber are respectively connected to the first conversion connector and the second conversion connector;

[0009] The ultraviolet fluorescence sensor is installed in the sensor probe detection chamber and connected to the oil-water analyzer.

[0010] The second solenoid valve is located between the second conversion joint on the side away from the sensor probe detection chamber and the outlet of the detection pipe.

[0011] The aforementioned oil-water treatment system is installed on the main line of the cooling water system. A single measurement of the oil content in the cooling water is performed by switching the solenoid valves on and off. Alternatively, the first solenoid valve 101 and the second solenoid valve 108 can be continuously opened to detect changes in the oil content of the cooling water over a period of time. Multiple oil-water treatment systems can also be deployed on the main line to form multiple treatment zones, monitoring each section of the cooling water system. When a device malfunctions at a certain location in the cooling water system, the affected zone can be quickly identified, improving the response speed to system anomalies.

[0012] Furthermore, the oil-in-water treatment system also includes a cleaning device, which is used to clean the detection device and detection pipeline after completing an oil-in-water test;

[0013] The cleaning device includes a first water tank, a cleaning pipe connected to the first water tank, and a first water pump and a third solenoid valve installed on the cleaning pipe; a second water tank, a cleaning liquid recovery pipe connected to the second water tank, and a fourth solenoid valve installed on the cleaning liquid recovery pipe.

[0014] The first water pump is located between the outlet of the first water tank and the third solenoid valve;

[0015] The outlet of the cleaning pipe is connected to the detection pipe through a T-joint, and the outlet of the cleaning pipe is located between the first solenoid valve and the inlet of the oil-water mixer.

[0016] The outlet of the cleaning fluid recovery pipe is connected to the detection pipe via a T-connector, and the outlet of the cleaning fluid recovery pipe is located between the second solenoid valve and the second conversion connector.

[0017] Furthermore, a first flow meter is provided between the first solenoid valve and the connection between the detection pipe and the outlet of the cleaning pipe;

[0018] A second flow meter is provided between the third solenoid valve and the first water pump.

[0019] Furthermore, the oil-in-water treatment system also includes at least one oil removal device, which is used to remove oil from the cooling water after the oil detection is completed;

[0020] The oil removal device includes an oil removal agent tank, an oil removal pipe connected to the oil removal agent tank, and a second water pump and a fifth solenoid valve installed on the oil removal pipe;

[0021] The second water pump is located between the outlet of the oil dispersant tank and the fifth solenoid valve.

[0022] Furthermore, a flow meter is also included between the second water pump and the fifth solenoid valve.

[0023] Furthermore, the internal diameter or width of the oil-water mixer is greater than the diameter of its inlet and outlet.

[0024] Furthermore, an ultrasonic sensor is installed in any water tank or any degreaser tank.

[0025] Furthermore, check valves are provided at the outlet of the detection pipe and the outlet of the oil removal pipe.

[0026] On the other hand, the present invention also provides a cooling water system, which includes a plurality of oil-in-water treatment systems as described above, arranged on the main road of the cooling water system; wherein the plurality of oil-in-water treatment systems are arranged in different areas of the main road to form a plurality of treatment zones.

[0027] The aforementioned oil-in-water treatment system can improve the efficiency of oil detection in the cooling water system. A single measurement can be achieved simply by opening and closing the valves in an orderly manner. Multiple detection devices 1 can be installed. Under normal conditions, only the oil-in-water treatment system located near the cooling water system drain outlet needs to be activated. When an anomaly occurs, all detection devices 1 can be activated simultaneously to quickly locate the anomaly, improving the response speed to cooling water system anomalies. Furthermore, the oil-in-water treatment system near the cooling water system drain outlet removes oil from the cooling water, ensuring that the discharged cooling water does not pollute the environment.

[0028] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0029] Figure 1 A structural block diagram of an oil-water treatment system provided by this utility model;

[0030] Figure 2 This is a structural block diagram of an oil-water treatment system according to an embodiment of the present invention;

[0031] Figure 3 This is a structural block diagram of an oil-water treatment system according to one embodiment of the present invention.

[0032] Figure label:

[0033] 2: Oil-water analyzer; 101: First solenoid valve; 102: Oil-water mixer; 103: Peristaltic pump; 104: First adapter; 105: Sensor probe detection chamber; 106: Ultraviolet fluorescence sensor; 107: Second adapter; 108: Second solenoid valve; 109: First flow meter; 301: First water tank; 302: First water pump; 303: Third solenoid valve; 304: Second water tank; 305: Fourth solenoid valve; 306: Second flow meter; 401: Oil remover tank; 402: Second water pump; 403: Fifth solenoid valve. Detailed Implementation

[0034] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0037] Please see Figure 1 The water oil treatment system of this utility model includes: a detection pipe, a detection device installed on the detection pipe, and a water oil analyzer 2; the water oil analyzer 2 is connected to the detection device;

[0038] The detection device includes: a first solenoid valve 101, an oil-water mixer 102, a peristaltic pump 103, a first adapter 104, a sensor probe detection chamber 105, an ultraviolet fluorescence sensor 106, a second adapter 107, and a second solenoid valve 108.

[0039] The first solenoid valve 101 is disposed between the water inlet of the detection pipe and the water inlet of the oil-water mixer 102;

[0040] The detection pipeline of the water-oil treatment system is connected to the main pipeline of the cooling water system via a three-way connector. When the first solenoid valve 101 is closed, the cooling water in the main pipeline cannot pass through the first solenoid valve 101, and the cooling water in the cooling water system flows in and out normally along the main pipeline. When it is necessary to detect the oil content of the cooling water, the first solenoid valve 101 and the second solenoid valve 108 are opened, the detection pipeline is opened, and the cooling water flows through the inlet of the detection pipeline and enters the oil-water mixer 102 through the first solenoid valve 101. Preferably, the diameter or width of the oil-water mixer 102 is larger than the diameter of the pipeline, and this setting has the following advantages: 1. It can provide a larger mixing space and promote mixing efficiency; 2. When the cooling water raw liquid flows from the small diameter pipeline into the large diameter mixer, the flow rate will slow down and the turbulence of the fluid will increase (the flow state of the cooling water becomes more chaotic and irregular), which is conducive to breaking up oil droplets and thus improving the dispersion of oil droplets; 3. The large diameter mixer can reduce the pressure loss of the fluid. Ultimately, this results in a more uniform distribution of water and oil in the cooling water mixture flowing into the sensor probe detection chamber, leading to more accurate detection results.

[0041] The peristaltic pump 103 is disposed between the outlet of the oil-water mixer 102 and the first conversion connector 104;

[0042] The oil-water mixer 102 ensures thorough mixing of the cooling water entering the sensor probe detection chamber 105 via the peristaltic pump 103. Preferably, the internal diameter or width of the oil and water mixture is larger than the diameter of its inlet and outlet. The first adapter 104 converts a large pipe to a small pipe, and the second adapter 107 converts a small pipe to a large pipe.

[0043] The two sides of the sensor probe detection chamber 105 are respectively connected to the first conversion connector 104 and the second conversion connector 107;

[0044] The ultraviolet fluorescence sensor 106 is disposed in the sensor probe detection chamber 105 and is connected to the oil-water analyzer 2.

[0045] The ultraviolet fluorescence sensor 106 emits ultraviolet fluorescence to irradiate the cooling water in the detection chamber, and transmits the received fluorescence information to the oil-in-water analyzer 2 to measure the type and concentration of oil in the cooling water.

[0046] The second solenoid valve 108 is located between the second conversion joint 107 on the side away from the sensor probe detection chamber 105 and the outlet of the detection pipe.

[0047] The cooled water after testing then returns to the main cooling water system via the second solenoid valve 108 and the outlet of the testing pipe to complete one test.

[0048] The aforementioned oil-water treatment system is installed on the main line of the cooling water system. A single measurement of the oil content in the cooling water is performed by switching the solenoid valves on and off. Alternatively, the first solenoid valve 101 and the second solenoid valve 108 can be continuously opened to detect changes in the oil content of the cooling water over a period of time. Multiple oil-water treatment systems can also be deployed on the main line to form multiple treatment zones, monitoring each section of the cooling water system. When a device malfunctions at a certain location in the cooling water system, the affected zone can be quickly identified, improving the response speed to system anomalies.

[0049] Furthermore, considering that the oil-water treatment system requires multiple measurements during the oil detection process, and that residual cooling water in the oil-water mixer 102 can affect the oil content in subsequent measurements, leading to measurement errors, in another embodiment, the oil-water treatment system also includes a cleaning device to address this issue. Please refer to [link to relevant documentation]. Figure 2 The cleaning device includes a first water tank 301, a cleaning pipe connected to the first water tank 301, and a first water pump 302 and a third solenoid valve 303 installed on the cleaning pipe; a second water tank 304, a cleaning liquid recovery pipe connected to the second water tank 304, and a fourth solenoid valve 305 installed on the cleaning liquid recovery pipe.

[0050] The first water pump 302 is located between the outlet of the first water tank 301 and the third solenoid valve 303;

[0051] The first water tank 301 is used to store cleaning fluid. After the oil level in the water is detected once, the third solenoid valve 303 is closed, and the first water pump 302 pumps the cleaning fluid from the first water tank 301 into the cleaning pipeline.

[0052] The outlet of the cleaning pipe is connected to the detection pipe through a T-joint, and the outlet of the cleaning pipe is located between the first solenoid valve 101 and the inlet of the oil-water mixer 102.

[0053] The cleaning fluid flows into the detection pipeline through the three-way connector. Since the third solenoid valve 303 is closed, the cleaning fluid can only flow into the oil-water mixer 102. The cleaning fluid removes the residual cooling water in the oil-water mixer 102 and then enters the sensor probe detection chamber 105 through the first conversion connector 104.

[0054] The outlet of the cleaning fluid recovery pipe is connected to the detection pipe through a T-connector, and the outlet of the cleaning fluid recovery pipe is located between the second solenoid valve 108 and the second conversion connector 107.

[0055] At this time, the second solenoid valve 108 is closed, and the cleaning fluid in the detection pipe is forced into the cleaning fluid recovery pipe by water pressure, and finally flows into the second water tank 304. The second water tank 304 is used to recover the used cleaning fluid. Preferably, a first flow meter 109 is provided between the first solenoid valve 101 and the connection between the detection pipe and the outlet of the cleaning pipe; a second flow meter 306 is provided between the third solenoid valve 303 and the first water pump 302. By setting two flow meters, the operator can reasonably adjust the power of the first water pump 302 during the cleaning process, avoiding excessive use of cleaning fluid and wasting resources.

[0056] This embodiment improves the accuracy of oil measurement in the water by installing a cleaning device in the oil treatment system to treat residual cooling water in the detection pipeline and detection device, ensuring the accuracy of each measurement and avoiding the influence of residual cooling water on the detection of oil content in the cooling water.

[0057] Please see Figure 3 In another embodiment, the oil-in-water system of this utility model further includes at least one oil removal device, which is used to remove oil from the cooling water after the oil detection is completed; the oil removal device includes an oil removal agent tank 401, an oil removal pipe connected to the oil removal agent tank 401, and a second water pump 402 and a fifth solenoid valve installed on the oil removal pipe; the second water pump 402 is installed between the outlet of the oil removal agent tank 401 and the fifth solenoid valve.

[0058] The oil dispersant tank 401 is used to store oil dispersant. After the online oil analyzer in the water completes the analysis of the oil content and composition of this batch of cooling water based on the information returned by the ultraviolet fluorescence sensor 106, it can select the corresponding oil dispersant according to the type of oil in the water to eliminate it, so that the discharged cooling water can meet the discharge standards and avoid environmental pollution. Preferably, in order to avoid excessive use of oil dispersant, a flow meter is also included between the second water pump 402 and the fifth solenoid valve.

[0059] Based on the reading of the first flow meter 109, the power of the second water pump 402 corresponding to the oil removal device is manually controlled so that the oil remover flowing out at the corresponding flow meter reading can neutralize the oil in the cooling water at the corresponding flow rate, ensuring that both the oil content and the oil remover content in the discharged cooling water are below a threshold. Depending on the needs of the cooling water system, multiple oil removal devices 4 can be installed. Each oil removal device 4 has an oil remover tank 401 containing different types of oil removers, and the corresponding solenoid valve can be opened as needed to complete the oil removal task.

[0060] In summary, the oil-in-water treatment system of this utility model includes a detection pipeline, a detection device 1 installed on the detection pipeline, a cleaning device 3 connected to the detection pipeline, and an oil removal device 4 for removing oil from the cooling water after detection. It can be installed at any location in the cooling water system to perform detection and oil removal tasks on the cooling water flowing through that location. Multiple formation area monitoring can also be set up to improve the response speed to system anomalies. The specific water treatment process includes: the raw cooling water to be treated flows through a three-way connector, with part flowing into the detection pipeline and the other part continuing to flow along the main path. At this time, the first solenoid valve 101 is opened, and the first flow meter 109 records the cooling water flow rate per unit time. At this time, the third solenoid valve 303 is closed, and there is no cleaning fluid in the detection pipeline. The raw cooling water enters the oil-water mixer 102, and the peristaltic pump 103 draws the raw cooling water at a small flow rate and sends it to the sensor probe detection chamber 105 for the ultraviolet fluorescence sensor 106 to perform oil detection in the water. Subsequently, the raw cooling water flows out of the detection pipeline through the second solenoid valve 108 and the check valve, and the detection ends. Based on the test results, open the second water pump 402 and the fifth solenoid valve of the corresponding oil removal device 4; at the same time, clean the test pipeline and remove oil from the cooling water raw liquid. When the oil content of the cooling water raw liquid in the test circuit is reduced to an acceptable range, close the first solenoid valve 101 and the second solenoid valve 108, open the third solenoid valve 303 and the fourth solenoid valve 305 and the first water pump 302 to clean the test pipeline. After cleaning, close the third solenoid valve 303 and the fourth solenoid valve 305 and the first water pump 302.

[0061] The aforementioned oil-in-water treatment system can improve the efficiency of oil detection in the cooling water system. A single measurement can be achieved simply by opening and closing the valves in an orderly manner. Multiple detection devices 1 can be installed. Under normal conditions, only the oil-in-water treatment system located near the cooling water system drain outlet needs to be activated. When an anomaly occurs, all detection devices 1 can be activated simultaneously to quickly locate the anomaly, improving the response speed to cooling water system anomalies. Furthermore, the oil-in-water treatment system near the cooling water system drain outlet removes oil from the cooling water, ensuring that the discharged cooling water does not pollute the environment.

[0062] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. An oil-water treatment system, characterized in that, include: The system includes a testing pipeline, a testing device installed on the testing pipeline, and an oil-water analyzer; the oil-water analyzer is connected to the testing device. The detection device includes: a first solenoid valve, an oil-water mixer, a peristaltic pump, a first adapter, a sensor probe detection chamber, an ultraviolet fluorescence sensor, a second adapter, and a second solenoid valve; The first solenoid valve is located between the water inlet of the detection pipe and the water inlet of the oil-water mixer; The peristaltic pump is located between the outlet of the oil-water mixer and the first conversion connector; The two sides of the sensor probe detection chamber are respectively connected to the first conversion connector and the second conversion connector; The ultraviolet fluorescence sensor is installed in the sensor probe detection chamber and connected to the oil-water analyzer. The second solenoid valve is located between the second conversion joint on the side away from the sensor probe detection chamber and the outlet of the detection pipe.

2. The water-oil treatment system according to claim 1, characterized in that, It also includes a cleaning device, which is used to clean the detection device and detection pipeline after completing an oil-in-water test; The cleaning device includes a first water tank, a cleaning pipe connected to the first water tank, and a first water pump and a third solenoid valve installed on the cleaning pipe; a second water tank, a cleaning liquid recovery pipe connected to the second water tank, and a fourth solenoid valve installed on the cleaning liquid recovery pipe. The first water pump is located between the outlet of the first water tank and the third solenoid valve; The outlet of the cleaning pipe is connected to the detection pipe through a T-joint, and the outlet of the cleaning pipe is located between the first solenoid valve and the inlet of the oil-water mixer. The outlet of the cleaning fluid recovery pipe is connected to the detection pipe via a T-connector, and the outlet of the cleaning fluid recovery pipe is located between the second solenoid valve and the second conversion connector.

3. The water-oil treatment system according to claim 2, characterized in that, A first flow meter is provided between the first solenoid valve and the connection between the detection pipe and the outlet of the cleaning pipe; A second flow meter is provided between the third solenoid valve and the first water pump.

4. The water-oil treatment system according to claim 3, characterized in that, Also includes: At least one oil removal device is provided for oil removal treatment of cooling water after oil detection in water; The oil removal device includes an oil removal agent tank, an oil removal pipe connected to the oil removal agent tank, and a second water pump and a fifth solenoid valve installed on the oil removal pipe; The second water pump is located between the outlet of the oil dispersant tank and the fifth solenoid valve.

5. The water-oil treatment system according to claim 4, characterized in that, A flow meter is also included between the second water pump and the fifth solenoid valve.

6. The water-oil treatment system according to claim 5, characterized in that, The internal diameter or width of the oil-water mixer is greater than the diameter of its inlet and outlet.

7. The water-oil treatment system according to claim 6, characterized in that, An ultrasonic sensor is installed in any water tank or any degreaser tank.

8. The water-oil treatment system according to claim 7, characterized in that, Check valves are provided at the outlet of the detection pipe and the outlet of the oil removal pipe.

9. A cooling water system, characterized in that, include: Multiple oil-water treatment systems as described in any one of claims 1-8 are installed on the main line of the cooling water system; wherein the multiple oil-water treatment systems are installed in different areas of the main line to form multiple treatment zones.

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