Water pH value adjusting system based on carbon dioxide

Abstract

A water pH value adjusting system based on carbon dioxide comprises a wastewater pool, a first treatment chamber, a second treatment chamber, a clean water pool and a carbon dioxide input device. The wastewater pool is respectively connected with the first treatment chamber and the second treatment chamber through a first pipeline and a second pipeline, and the first pipeline and the second pipeline are respectively provided with a first valve and a second valve; the first treatment chamber and the second treatment chamber are respectively connected with the clean water tank through a third pipeline and a fourth pipeline, and the third pipeline and the fourth pipeline are respectively provided with a third valve and a fourth valve; the first treatment chamber is connected with the second treatment chamber through a fifth pipeline, and the fifth pipeline is provided with a sixth valve. The temperature sensor sends a heating command to the heating equipment, at the moment, the heating equipment performs heating, and when the temperature rises, the content of carbon dioxide dissolved in the liquid is reduced, so that the PH value of the liquid is increased. The PH adjusting precision is improved, and meanwhile, the liquid can meet the discharge requirement.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a water pH adjustment system based on carbon dioxide. Background Technology

[0002] In the construction industry, vehicles and tools inevitably accumulate large amounts of concrete residue due to frequent contact with concrete. This residue not only affects the normal operation and lifespan of equipment but also poses a potential threat to the environment. Therefore, regular concrete cleaning of vehicles and tools is crucial. However, the cleaning process involves the addition of chemicals, and the resulting wastewater often has a high pH value. Direct discharge of this wastewater can have adverse effects on the ecological environment, such as soil salinization and imbalance of aquatic ecosystems.

[0003] Therefore, wastewater is collected after concrete cleaning. Carbon dioxide is then introduced into the wastewater to lower its pH level and meet discharge standards. During wastewater treatment, the amount of carbon dioxide introduced is often determined based on the pH value, and the valve is closed after the prescribed flow rate of carbon dioxide has been introduced. However, because residual carbon dioxide remains in the channel, adjusting the pH level becomes difficult. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose a carbon dioxide-based water pH adjustment system that reduces the difficulty of pH control and improves the efficiency of pH adjustment.

[0005] To achieve this objective, the present invention adopts the following technical solution: a water pH adjustment system based on carbon dioxide, comprising a wastewater tank, a first treatment chamber, a second treatment chamber, a clear water tank, and a carbon dioxide input device;

[0006] The wastewater pool is connected to the first treatment chamber and the second treatment chamber via a first pipe and a second pipe, respectively. The first pipe and the second pipe are respectively equipped with a first valve and a second valve.

[0007] The first treatment chamber and the second treatment chamber are respectively connected to the clear water tank through a third pipe and a fourth pipe, and the third pipe and the fourth pipe are respectively equipped with a third valve and a fourth valve;

[0008] The carbon dioxide input device is connected to the first processing chamber via a first gas pipe, and the first gas pipe is equipped with a fifth valve.

[0009] Both the first and second processing chambers are equipped with pH sensors. The first processing chamber is also equipped with a temperature sensor, and the second processing chamber is equipped with a heating device. The temperature sensor is electrically connected to the heating device.

[0010] The first processing chamber is connected to the second processing chamber via a fifth pipe, which is equipped with a sixth valve.

[0011] Preferably, it also includes a third processing chamber, which is connected to the second processing chamber via a second air pipe, and the second air pipe is equipped with a seventh valve;

[0012] The wastewater pool is connected to the third treatment chamber via a sixth pipe, and the sixth pipe is equipped with an eighth valve.

[0013] The third treatment chamber is connected to the clear water tank via a seventh pipe, and the seventh pipe is equipped with a ninth valve.

[0014] A pH sensor is installed in the third processing chamber.

[0015] Preferably, it also includes a third air pipe, one end of which is connected to the third processing chamber and the other end is connected to the first air pipe, and the third air pipe is provided with a tenth valve.

[0016] Preferably, the carbon dioxide input device includes a liquid carbon dioxide storage tank and a vaporizer;

[0017] The output end of the liquid carbon dioxide storage tank is connected to the input end of the vaporizer, and the output end of the vaporizer is connected to the input end of the first gas pipe.

[0018] Preferably, it also includes a flow meter, which is disposed between the output end of the vaporizer and the first gas pipe.

[0019] Preferably, it also includes a gas booster device, which is disposed between the output end of the vaporizer and the flow meter.

[0020] Preferably, the output end of the vaporizer is further provided with a safety device, which is selected from, but not limited to, one or more of the following: a gas pressure reducing valve, a safety valve, and a check valve.

[0021] Preferably, the gas booster is electrically connected to the fifth valve.

[0022] One of the above technical solutions has the following advantages or beneficial effects: 1. This utility model also includes a second processing chamber. When the pH value of the first processing chamber is low after pH adjustment, the sixth valve will be opened, and the liquid will be input into the second processing chamber through the fifth pipe. At this time, the temperature sensor will detect the liquid. If the liquid temperature is lower than the temperature threshold, the temperature sensor will send a heating command to the heating device. The heating device will then heat the liquid. When the temperature rises, the dissolved carbon dioxide content in the liquid will decrease, thereby increasing the pH value of the liquid. This improves the accuracy of pH adjustment while also ensuring that the liquid meets the discharge requirements.

[0023] 2. The first batch of wastewater flows into the second treatment chamber. At this time, the first treatment chamber is empty. The first valve and the fifth valve can continue to be opened to continue the transportation of wastewater and carbon dioxide, which improves the efficiency of regulation. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0025] The system includes: wastewater tank 1, first treatment chamber 2, second treatment chamber 3, clear water tank 4, carbon dioxide input device 5, liquid carbon dioxide storage tank 5a, vaporizer 5b, first pipeline 6, second pipeline 7, first valve 8, second valve 9, third pipeline 10, fourth pipeline 11, third valve 12, fourth valve 13, first gas pipe 14, fifth valve 15, pH sensor 16, temperature sensor 17, heating equipment 18, fifth pipeline 19, sixth valve 20, third treatment chamber 21, second gas pipe 22, seventh valve 23, sixth pipeline 24, eighth valve 25, seventh pipeline 26, ninth valve 27, third gas pipe 28, tenth valve 29, flow meter 30, and gas booster device 31. Detailed Implementation

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 As shown, a carbon dioxide-based water pH adjustment system includes a wastewater tank (1), a first treatment chamber (2), a second treatment chamber (3), a clear water tank (4), and a carbon dioxide input device (5).

[0031] The wastewater tank (1) is connected to the first treatment chamber (2) and the second treatment chamber (3) through the first pipe (6) and the second pipe (7) respectively. The first pipe (6) and the second pipe (7) are respectively equipped with the first valve (8) and the second valve (9);

[0032] The first processing chamber (2) and the second processing chamber (3) are respectively connected to the clear water tank (4) through the third pipe (10) and the fourth pipe (11), and the third pipe (10) and the fourth pipe (11) are respectively equipped with the third valve (12) and the fourth valve (13);

[0033] The carbon dioxide input device (5) is connected to the first processing chamber (2) through a first gas pipe (14), and the first gas pipe (14) is equipped with a fifth valve (15);

[0034] A pH sensor (16) is installed in both the first processing chamber (2) and the second processing chamber (3). A temperature sensor (17) is also installed in the first processing chamber (2). A heating device (18) is installed in the second processing chamber (3). The temperature sensor (17) and the heating device (18) are electrically connected.

[0035] The first processing chamber (2) is connected to the second processing chamber (3) via a fifth pipe (19), which is equipped with a sixth valve (20).

[0036] In this invention, the wastewater tank (1) is used to collect cleaned wastewater. When the wastewater needs to be treated, the first valve (8) is opened, and the wastewater in the wastewater tank (1) flows into the first treatment chamber (2). At the same time, the pH sensor (16) detects the pH value of the wastewater in the first treatment chamber (2) and determines the amount of carbon dioxide to be input based on the pH value of the wastewater. When the input amount reaches the threshold, the fifth valve (15) on the pipe wall is activated. Ideally, the pH value of the water in the first treatment chamber (2) will meet the discharge standard. However, in reality, when the fifth valve (15) is closed, there is still high-pressure carbon dioxide in the first gas pipe (14), and the residual carbon dioxide will continue to flow into the first treatment chamber (2). This causes the pH value of the water in the first treatment chamber (2) to decrease, making it difficult to control the pH value of the first treatment chamber (2).

[0037] Therefore, a second treatment chamber (3) is also provided in this utility model. When the pH value of the first treatment chamber (2) is low after pH adjustment, the sixth valve (20) will be opened, and the liquid will be input into the second treatment chamber (3) through the fifth pipe (19). At this time, the temperature sensor (17) will detect the liquid. If the temperature of the liquid is lower than the temperature threshold, the temperature sensor (17) will send a heating command to the heating device (18). At this time, the heating device (18) will heat the liquid. When the temperature rises, the dissolved carbon dioxide content in the liquid will decrease, thereby increasing the pH value of the liquid. While improving the pH adjustment accuracy, the liquid can also meet the discharge requirements. However, when the temperature is not lower than the temperature threshold, it is too costly to adjust the pH by raising the temperature. At this time, the second valve (9) can be manually controlled to input wastewater into the second treatment chamber (3) in small amounts and multiple times to adjust the pH value in the second treatment chamber (3).

[0038] At this time, since the first batch of wastewater flows into the second treatment chamber (3), the first treatment chamber (2) is empty. The first valve (8) and the fifth valve (15) can continue to be opened to continue the transportation of wastewater and carbon dioxide, which improves the efficiency of regulation.

[0039] Preferably, it also includes a third processing chamber (21), which is connected to the second processing chamber (3) via a second air pipe (22), and the second air pipe (22) is provided with a seventh valve (23);

[0040] The wastewater pool (1) is connected to the third treatment chamber (21) through a sixth pipe (24), and the sixth pipe (24) is equipped with an eighth valve (25);

[0041] The third processing chamber (21) is connected to the clear water tank (4) via the seventh pipe (26), and the seventh pipe (26) is equipped with the ninth valve (27);

[0042] A pH sensor (16) is installed in the third processing chamber (21).

[0043] When the second processing chamber (3) is heated, carbon dioxide will overflow from it. If the fourth valve (13) is opened directly to input the liquid from the second processing chamber (3) into the clear water tank (4), the overflowing carbon dioxide will flow out through the fourth pipe (11), thus wasting carbon dioxide. Therefore, in this utility model, a third processing chamber (21) and a second gas pipe (22) are provided. Before opening the fourth valve (13), the seventh valve (23) can be opened to connect the second gas pipe (22). At this time, the carbon dioxide in the second processing chamber (3) will enter the third processing chamber (21). After the gas pressure between the second processing chamber (3) and the third processing chamber (21) is balanced, the seventh valve (23) is closed and the fourth valve (13) is opened to discharge the liquid into the clear water tank (4). At this time, the third treatment chamber (21) is filled with carbon dioxide. At this time, the ninth valve (27) can be opened, and a certain amount of wastewater can be transported into the third treatment chamber (21) through the seventh pipe (26). The pH can be adjusted in the third treatment chamber (21) to speed up the wastewater treatment process.

[0044] Preferably, it also includes a third air pipe (28), one end of which is connected to the third processing chamber (21) and the other end is connected to the first air pipe (14). The third air pipe (28) is provided with a tenth valve (29).

[0045] When the wastewater volume is low, the ninth valve (27) is opened in a disordered manner to deliver wastewater to the third treatment chamber (21) to ensure the cleanliness of the third treatment chamber (21). Excess carbon dioxide can flow into the first gas pipe (14) through the third gas pipe (28) and be reintroduced into the first treatment chamber (2) for acid-base adjustment, thus saving carbon dioxide usage.

[0046] Preferably, the carbon dioxide input device (5) includes a liquid carbon dioxide storage tank (5a) and a vaporizer (5b);

[0047] The output end of the liquid carbon dioxide storage tank (5a) is connected to the input end of the vaporizer (5b), and the output end of the vaporizer (5b) is connected to the input end of the first gas pipe.

[0048] Since the volume of wastewater being treated is sometimes large, the density of liquid carbon dioxide increases, allowing for the storage of more carbon dioxide for acid-base regulation. Therefore, in one embodiment of this invention, a liquid carbon dioxide storage tank (5a) is used to store liquid carbon dioxide. When in use, the liquid carbon dioxide is fed into a vaporizer (5b), which continuously converts the liquid carbon dioxide into gaseous carbon dioxide to meet the needs of acid-base regulation.

[0049] Preferably, it also includes a flow meter (30), which is disposed between the output end of the vaporizer (5b) and the first gas pipe.

[0050] The flow meter (30) can monitor the amount of carbon dioxide delivered in real time, thereby improving the accuracy of acid-base regulation and avoiding the waste of carbon dioxide.

[0051] Preferably, it also includes a gas booster device (31), which is disposed between the output end of the vaporizer (5b) and the flow meter (30).

[0052] Because carbon dioxide dissolves more readily in water under higher pressure, it reduces the alkalinity of the wastewater. Therefore, a gas pressure device is installed between the output of the vaporizer (5b) and the flow meter (30) to increase the carbon dioxide pressure in the first gas pipe (14) via a gas booster device (31), thereby accelerating the efficiency of acid-base regulation.

[0053] Preferably, the output end of the vaporizer (5b) is further provided with a safety device, which is selected from, but not limited to, one or more of the following: a gas pressure reducing valve, a safety valve, and a check valve.

[0054] Gas pressure reducing valves, safety valves, check valves, etc., can reduce the gas pressure of the vaporizer (5b) at the output, so that the carbon dioxide gas pressure is kept within a reasonable range at the output, so as to ensure that the output end of the vaporizer (5b) can be used normally and to ensure the stability and controllability of the vaporizer (5b).

[0055] Preferably, the gas booster device (31) is electrically connected to the fifth valve (15).

[0056] The gas pressurization device (31) has a built-in pressure detection instrument. When the carbon dioxide in the liquid carbon dioxide storage tank (5a) is insufficient, the gas pressurization device (31) can detect this. At this time, gas pressurization cannot be performed by the gas pressurization device (31), and the fifth valve (15) needs to be closed, and the management personnel need to be notified to replace the liquid carbon dioxide storage tank (5a). In the description of this specification, the reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc., means that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A water pH adjustment system based on carbon dioxide, characterized in that, It includes a wastewater tank (1), a first treatment chamber (2), a second treatment chamber (3), a clear water tank (4), and a carbon dioxide input device (5); The wastewater tank (1) is connected to the first treatment chamber (2) and the second treatment chamber (3) through the first pipe (6) and the second pipe (7) respectively. The first pipe (6) and the second pipe (7) are respectively equipped with the first valve (8) and the second valve (9); The first processing chamber (2) and the second processing chamber (3) are respectively connected to the clear water tank (4) through the third pipe (10) and the fourth pipe (11), and the third pipe (10) and the fourth pipe (11) are respectively equipped with the third valve (12) and the fourth valve (13); The carbon dioxide input device (5) is connected to the first processing chamber (2) through a first gas pipe (14), and the first gas pipe (14) is equipped with a fifth valve (15); A pH sensor (16) is installed in both the first processing chamber (2) and the second processing chamber (3). A temperature sensor (17) is also installed in the first processing chamber (2). A heating device (18) is installed in the second processing chamber (3). The temperature sensor (17) and the heating device (18) are electrically connected. The first processing chamber (2) is connected to the second processing chamber (3) via a fifth pipe (19), which is equipped with a sixth valve (20).

2. The water pH adjustment system based on carbon dioxide according to claim 1, characterized in that, It also includes a third processing chamber (21), which is connected to the second processing chamber (3) via a second air pipe (22), and the second air pipe (22) is equipped with a seventh valve (23); The wastewater pool (1) is connected to the third treatment chamber (21) through a sixth pipe (24), and the sixth pipe (24) is equipped with an eighth valve (25); The third processing chamber (21) is connected to the clear water tank (4) via the seventh pipe (26), and the seventh pipe (26) is equipped with the ninth valve (27); A pH sensor (16) is installed in the third processing chamber (21).

3. The water pH adjustment system based on carbon dioxide according to claim 2, characterized in that, It also includes a third air pipe (28), one end of which is connected to the third processing chamber (21) and the other end is connected to the first air pipe (14). The third air pipe (28) is equipped with a tenth valve (29).

4. The water pH adjustment system based on carbon dioxide according to claim 1, characterized in that, The carbon dioxide input device (5) includes a liquid carbon dioxide storage tank (5a) and a vaporizer (5b): The output end of the liquid carbon dioxide storage tank (5a) is connected to the input end of the vaporizer (5b), and the output end of the vaporizer (5b) is connected to the input end of the first gas pipe.

5. The water pH adjustment system based on carbon dioxide according to claim 4, characterized in that, It also includes a flow meter (30), which is disposed between the output end of the vaporizer (5b) and the first gas pipe.

6. The water pH adjustment system based on carbon dioxide according to claim 5, characterized in that, It also includes a gas booster device (31), which is located between the output end of the vaporizer (5b) and the flow meter (30).

7. The water pH adjustment system based on carbon dioxide according to claim 5, characterized in that, The output end of the vaporizer (5b) is also equipped with a safety device, which is selected from, but not limited to, one or more of the following: a gas pressure reducing valve, a safety valve, and a check valve.

8. The water pH adjustment system based on carbon dioxide according to claim 6, characterized in that, The gas booster device (31) is electrically connected to the fifth valve (15).

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