Water conveying pipeline and sewage stirring device

Abstract

The utility model relates to the technical field of stirring tanks, in particular to a water conveying pipeline and a sewage stirring device, which comprise a water inlet assembly and a water outlet assembly, one end of the water inlet pipe is connected with a sewage source, the other end of the water inlet pipe is provided with a connecting pipe, and one end, far away from the water inlet pipe, of the connecting pipe is provided with a water feeding pipe; and the drainage assembly comprises a drainage pipe, the drainage pipe is arranged on the connecting pipe, and a two-way valve is arranged on the drainage pipe. According to the device, the water inlet assembly is arranged, so that a cached sewage sample is disturbed in real time, particulate matters in the sewage sample are prevented from being precipitated, a sampling detection result is prevented from being influenced, and additional stirring equipment does not need to be added for disturbance of the sewage sample; in addition, the low-water-level arrangement of the drainage pipe facilitates the overall drainage of the device.

Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, and in particular to a water pipeline and a sewage mixing device. Background Technology

[0002] Currently, some wastewater treatment plants conduct wastewater testing in two ways simultaneously: one is by manually collecting wastewater samples and testing them once a day; the other is by using online testing equipment to conduct real-time or scheduled testing.

[0003] Wastewater samples tested by online detection equipment are pumped into a wastewater storage tank for buffering and testing. During the storage process, particulate impurities in the wastewater will settle, causing discrepancies between the real-time data detected by the online detection equipment and the data detected manually.

[0004] The principle of automatic online monitoring of CODcr in water quality: A certain amount of potassium dichromate solution is added to a water sample (approximately 50 ml). Sulfuric acid is used as the acidifying agent, silver sulfate as the catalyst, and mercuric sulfate as the masking agent for chlorine. After oxidation and digestion at 165℃, the absorbance of trivalent chromium (Cr3+) produced by the reduction of potassium dichromate is measured at a wavelength of 600 nm ± 20 nm (high range), or the absorbance of hexavalent chromium (Cr6+) that is not reduced by potassium dichromate is measured at a wavelength of 440 nm ± 20 nm (low range). The CODcr concentration of the sample is calculated based on the ratio between the sample's CODcr value and the absorbance value.

[0005] Online water sample extraction process: A sewage pump is installed at the sewage inlet. When the equipment is sampling, it sends a sampling signal, and the pump starts working. The water sample travels through the sampling pipeline to a U-shaped tube; part of the sample is retained for testing, and the other part overflows back to the sampling point. The online COD monitoring equipment extracts approximately 50 ml of water sample from the U-shaped tube through a sampling pipeline with an inner diameter of approximately 1.6 cm. After sufficient reaction with the measuring reagents in the reaction chamber, the COD concentration is measured. Because the online COD monitoring equipment only extracts about 50 ml of water sample, and some sediment occurs after the sample is retained in the U-shaped tube, coupled with the complex composition of the sewage inlet sample, there is a certain difference between the extracted sample and the actual composition. This leads to a significant error between the final COD concentration value measured by the online COD monitoring equipment and manual laboratory monitoring.

[0006] To address the issue of large measurement errors, it is necessary to resolve the difference between the water sample and its actual composition before entering the measurement chamber. This requires adding a stirring device to the existing sampling process to reduce the discrepancy between the two measurement methods. Utility Model Content

[0007] In view of the inconvenience of sewage sample collection and discharge in the above-mentioned or existing technologies, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a water supply pipeline.

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a water inlet assembly, including a water inlet pipe, one end of which is connected to a sewage source, and the other end of which is provided with a connecting pipe, and the end of the connecting pipe away from the water inlet pipe is provided with a water supply pipe; and,

[0010] A drainage assembly includes a drain pipe disposed on the connecting pipe, and a two-way valve is provided on the drain pipe.

[0011] As a preferred embodiment of the water supply pipeline of this utility model, the drainage component further includes a tee, which is disposed between the drainage pipe and the connecting pipe, and the bypass opening of the tee is set downward.

[0012] As a preferred embodiment of the water supply pipeline of this utility model, the drainage component further includes a tee, which is disposed between the drainage pipe and the connecting pipe, and the bypass opening of the tee is set downward.

[0013] As a preferred embodiment of the water supply pipeline of this utility model, the water inlet assembly further includes a first elbow, which is disposed between the water inlet pipe and the connecting pipe; and a second elbow, which is disposed between the connecting pipe and the water supply pipe.

[0014] The beneficial effects of the water supply pipeline of this utility model are as follows: This utility model enables the continuous pumping of sewage samples through the setting of the water inlet component, and at the same time enables the sewage samples to be disturbed without the need for additional stirring equipment. The setting of the drainage component facilitates the drainage of the entire water supply pipeline.

[0015] In actual use, there is still the problem of impurities settling in wastewater samples.

[0016] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: a sewage mixing device, including a water supply pipeline and a sewage mixing tank, the sewage mixing tank including a tank body and a water inlet, the bottom of the tank body being funnel-shaped, and the water inlet being located at the lowest end of the bottom of the tank body; the water inlet being adapted to the water supply pipe.

[0017] As a preferred embodiment of the wastewater mixing device of this utility model, the wastewater mixing tank further includes an overflow pipe, which is disposed through the side wall of the tank; and a sampling pipe, one end of which is disposed at the funnel-shaped part at the bottom of the tank, and the other end of which is connected to a wastewater real-time detection device.

[0018] As a preferred embodiment of the wastewater mixing device of this utility model, it further includes a fixing component, the fixing component including a connector, the connector being disposed on the top of the tank, and a nut being fastened to the connector;

[0019] The connector is provided with an external threaded surface at the position where it is adapted to the nut, and the connector is provided with a through hole along the axial direction that is adapted to the sampling tube.

[0020] The top surface of the nut has a through hole that matches the sampling tube, and the nut has a receiving cavity with an open bottom surface and a threaded inner wall.

[0021] In a preferred embodiment of the wastewater mixing device of this utility model, the fixing component further includes a retainer, which is shaped like an inverted frustum. The retainer has an axial through hole inside, which is adapted to the sampling tube. The large-diameter end of the retainer is located inside the nut, and the small-diameter end of the retainer is suitable for insertion into the top surface of the through hole of the connector. The retainer can deform inside the nut.

[0022] As a preferred embodiment of the wastewater mixing device of this utility model, it further includes a limiting component, the limiting component including a limiting ring, the outer wall of the limiting ring being provided with a plurality of connecting ribs, and the other end of the connecting ribs being provided at the bottom of the inner side of the tank.

[0023] In a preferred embodiment of the wastewater mixing device of this utility model, the limiting component further includes limiting ribs, and several limiting ribs are provided, which are respectively provided on the bottom surface of the limiting ring and extend along the axial direction of the limiting ring.

[0024] The beneficial effects of the wastewater stirring device of this utility model are as follows: By setting the water inlet component, the buffered wastewater sample is disturbed in real time, which avoids the sedimentation of particulate matter in the wastewater sample and affects the sampling and testing results. Moreover, the disturbance of the wastewater sample does not require the addition of additional stirring equipment. In addition, the low water level setting of the drain pipe facilitates the drainage of the entire device. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a top view of the water pipeline structure.

[0027] Figure 2 This is a schematic diagram showing a partial cross-section of a wastewater mixing device.

[0028] Figure 3 This is a side view of the sewage mixing device.

[0029] Figure 4 This is a sectional view of a fixed component.

[0030] Figure 5 This is a bottom view of the limit component. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0034] Example 1, referring to Figures 1 to 3 This is the first embodiment of the present invention, which provides a water supply pipeline.

[0035] It includes a water inlet assembly 100, which can both input wastewater into the tank 301 and discharge wastewater.

[0036] The water inlet assembly 100 specifically includes a water inlet pipe 101, which is used to draw in sewage samples. One end of the water inlet pipe 101 extends into the sewage source, and a water pump is installed near the sewage source end of the water inlet pipe 101. The pump has a sufficient head to pump the sewage into the tank 301 and to disturb the existing samples with the newly pumped sewage samples, so that the sewage samples are continuously agitated.

[0037] The end of the inlet pipe 101 away from the sewage source is connected to a first elbow 102, and the other end of the first elbow 102 is connected to a connecting pipe 103.

[0038] The end of the connecting pipe 103 away from the water inlet pipe 101 is connected to a second elbow 105, and the other end of the second elbow 105 is connected to a water supply pipe 104.

[0039] It should be noted that the end of the second elbow 105 that connects to the water supply pipe 104 is set perpendicular to the ground.

[0040] And a drainage component 200, which includes a tee 201, which is disposed on the connecting pipe 103. The bypass opening of the tee 201 is inclined downward with an inclination angle of 30 to 60 degrees.

[0041] The bypass connection of the tee 201 is connected to the drain pipe 202. Since the drain pipe 202 is a plastic pipe, the flexibility of the drain pipe 202 is utilized so that the bypass connection between the drain pipe 202 and the tee 201 is bent parallel to the ground so that the drain pipe 202 can be led out.

[0042] Furthermore, a two-way valve 203 is installed on the drain pipe 202, which can control the drainage flow rate of the drain pipe 202 and the opening or closing of the drain pipe 202.

[0043] Example 2, refer to Figures 1-3 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides different drainage directions for the water supply pipeline.

[0044] Specifically, when the bypass outlet of the tee 201 is installed vertically downwards to the ground, in order to facilitate the installation of the drain pipe 202, the drain pipe 202 can be divided into two sections. The section connected to the tee 201 is installed vertically, and an elbow is installed at one end of the section horizontal to the ground. The other end of the elbow is connected to the lower end of the vertical drain pipe. This method is suitable for rigid pipes that are not easy to bend.

[0045] The rest of the structure is the same as in Example 1.

[0046] Example 3, referring to Figures 2-3 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a sewage stirring device, which solves the problem of impurity precipitation in sewage samples, including the water supply pipeline in the above embodiment.

[0047] The specific wastewater mixing tank 300 includes a tank body 301, which is a shell with a funnel-shaped bottom surface and an inlet 304 at the bottom of the funnel; the tank body 301 is used to buffer wastewater samples.

[0048] Furthermore, the water supply pipe 104 is compatible with the water inlet 304, and a quick connector is installed at the connection end between the water supply pipe 104 and the water inlet 304 to facilitate the connection between the water supply pipe 104 and the water inlet 304.

[0049] Preferably, the wastewater mixing tank 300 also includes an overflow pipe 302, one end of which penetrates the side wall of the tank body 301 and is inserted into the interior of the tank body 301.

[0050] It should be noted that the overflow pipe 302 is located at the top of the tank 301. When there is too much wastewater sample in the tank 301, it can be discharged through the overflow pipe 302.

[0051] Preferably, the wastewater mixing tank 300 also includes a sampling tube 303. One end of the sampling tube 303 extends into the funnel-shaped part at the bottom of the tank body 301, and the other end of the sampling tube 303 is connected to a wastewater real-time monitoring device. When the wastewater real-time monitoring device detects wastewater, it can extract the wastewater sample buffered in the tank body 301 through the sampling tube 303.

[0052] And, fixed component 400, refer to Figure 4 The fixing component 400 is used to fix the sampling tube 303 to the tank body 301, and facilitates the connection, removal and replacement of the sampling tube 303.

[0053] The fixing component 400 includes a connector 401, which is disposed on the top of the tank body 301 and welded to the top of the tank body 301. The connector 401 is generally arranged in the form of a tube with unequal diameters. The outer diameter of the upper and lower parts of the tube is smaller than that of the middle part of the tube. The outer wall of the upper part of the tube is set as a threaded surface that can be adapted to the nut 402.

[0054] A nut 402 is fastened to the connector 401, and the nut 402 can be screwed onto the connector 401.

[0055] The connector 401 has an axial through hole that matches the sampling tube 303, through which the sampling tube 303 can pass.

[0056] The nut 402 has a receiving cavity 404 with an open bottom surface and a threaded inner wall. The top surface of the nut 402 has a through hole that matches the sampling tube 303, through which the sampling tube 303 can pass.

[0057] The fixing component 400 also includes a retainer 403, which is made of a resilient plastic material.

[0058] The ferrule 403 is shaped like an inverted frustum. A through hole is provided inside the ferrule 403 along the axial direction. The through hole of the ferrule 403 is adapted to the sampling tube 303, and the sampling tube 303 can pass through it.

[0059] The large-diameter end of the ferrule 403 is installed in the receiving cavity 404 of the nut 402, the small-diameter end of the ferrule 403 is inserted into the gap between the through hole of the connector 401 and the sampling tube 303, and the rest of the ferrule 403 abuts against the top surface of the connector 401.

[0060] The ferrule 403 can deform within the nut 402. When the nut 402 is tightened onto the connector 401, the ferrule 403 is compressed between the receiving cavity 404 and the top surface of the connector 401, and deforms within the receiving cavity 404, reducing the inner diameter of the through hole inside the ferrule 403, thereby securing the sampling tube 303 within it. If it is necessary to remove the sampling tube 303, loosen the nut 402, and the ferrule 403 will return to its initial shape, allowing the sampling tube 303 to be removed from the ferrule 403.

[0061] It also includes limit component 500, see reference Figure 5 The limiting component 500 is used to insert into the end of the sampling tube 303 to fix the position of the sampling tube 303 in sucking sewage.

[0062] The limiting component 500 includes a limiting ring 501, the inner diameter of which is slightly larger than the outer diameter of the sampling tube 303, so as to facilitate the insertion of the sampling tube 303 into the limiting ring 501 and its removal from the limiting ring 501.

[0063] A number of connecting ribs 502 are welded to the outer wall of the limiting ring 501. In this embodiment, the preferred number is four. The connecting ribs 502 are welded at equal intervals to the outer wall of the limiting ring 501 and extend radially along the limiting ring 501. The other end of the connecting ribs 502 is welded to the bottom of the inner side of the tank body 301.

[0064] Furthermore, the limiting component 500 also includes limiting ribs 503. Several limiting ribs 503 are provided, preferably four in this embodiment. They are welded to the bottom surface of the limiting ring 501 and extend along the axial direction of the limiting ring 501. When the sampling tube 303 is inserted into the limiting ring 501, the limiting ribs 503 provide axial support to the sampling tube 303 below the limiting ring 501, so as to prevent the sampling tube 303 below from deforming under the impact of sewage flow and affecting the collection of sewage samples.

[0065] The rest of the structure is the same as in Example 2.

[0066] Before sampling, the water pump is turned on, and the sewage is sucked into the tank 301. Before the end of sampling, the water pump continuously pumps in sewage, and the continuously pumped sewage will flow into the tank 301 through the inlet 304 to continuously disturb the sewage that has been pumped into the tank 301, so as to avoid the sedimentation of impurities in the sewage. During sampling, the sewage real-time detection equipment extracts the sewage sample buffered in the tank 301 through the sampling tube 303. After sampling, the water pump is turned off and the two-way valve 203 is opened, and the sewage remaining in the tank 301 and the inlet pipe 101 can be discharged at the same time through the drain pipe 202.

[0067] It should be noted that during the sampling process, as the water pump continuously pumps sewage into the tank 301, if there is too much sewage sample buffered in the tank 301, it can be discharged through the overflow pipe 302. In addition, if the pressure inside the tank 301 is too high, the two-way valve 203 can be partially opened as needed to reduce the pressure inside the tank 301.

[0068] The principle of the flow path of this device is as follows: Based on the original sampling pipeline, the water pump is replaced with a cutting sewage pump with a larger power to increase the sampling pressure. A three-way valve is set at the front end of the inlet pipe to divert a part of the water sample to the mixing tank. A two-way valve is added to the drain pipe to facilitate the overflow after mixing.

[0069] Wastewater samples enter from the bottom of the mixing tank. Due to the continuous pumping pressure, the wastewater samples flow upward from the bottom of the mixing tank, undergoing the first unpowered mixing. Excess water samples overflow through the overflow port at the top of the mixing tank.

[0070] The sampling tube of the online monitoring equipment draws water samples from the bottom of the mixing tank into the pretreatment unit, where secondary mixing is performed to ensure thorough mixing and reduce differences in water sample composition. This minimizes the large discrepancy between the wastewater sample concentration and the actual water sample concentration. After measurement, the water pump stops operating, and any unfilled water sample in the mixing tank flows out by gravity through the drain pipe at the bottom of the tank, achieving a completely power-free process for wastewater sample mixing and overflow.

[0071] In summary, this device, through the setting of the water inlet component 100, allows the buffered sewage sample to be disturbed in real time, avoiding the sedimentation of particulate matter in the sewage sample and affecting the sampling and testing results. Moreover, the disturbance of the sewage sample does not require the addition of additional stirring equipment. In addition, the low water level setting of the drain pipe facilitates the drainage of the entire device.

[0072] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0073] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0074] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water supply pipeline, characterized in that: include, A water inlet assembly (100) includes an inlet pipe (101), one end of which is connected to a sewage source, and the other end of which is provided with a connecting pipe (103). A water supply pipe (104) is provided at the end of the connecting pipe (103) away from the inlet pipe (101); and... A drainage assembly (200) includes a drain pipe (202) disposed on the connecting pipe (103), and a two-way valve (203) is disposed on the drain pipe (202).

2. The water supply pipeline as described in claim 1, characterized in that: The drainage assembly (200) also includes a tee (201), which is disposed between the drain pipe (202) and the connecting pipe (103), with the bypass opening of the tee (201) facing downward.

3. The water supply pipeline as described in claim 1 or 2, characterized in that: The water inlet assembly (100) further includes a first elbow (102) disposed between the water inlet pipe (101) and the connecting pipe (103); and a second elbow (105) disposed between the connecting pipe (103) and the water supply pipe (104).

4. The water supply pipeline as described in claim 3, characterized in that: A water pump is installed near the sewage end of the inlet pipe (101).

5. A sewage mixing device, characterized in that: Including the water supply pipeline as described in any one of claims 1 to 4, and, Wastewater mixing tank (300) includes a tank body (301) and an inlet (304). The bottom of the tank body (301) is funnel-shaped, and the inlet (304) is located at the lowest end of the bottom of the tank body (301). The inlet (304) is adapted to the water supply pipe (104).

6. The sewage mixing device as described in claim 5, characterized in that: The wastewater mixing tank (300) also includes an overflow pipe (302) that is disposed through the side wall of the tank body (301); and a sampling pipe (303) with one end disposed at the funnel-shaped part at the bottom of the tank body (301) and the other end connected to a wastewater real-time monitoring device.

7. The sewage mixing device as described in claim 6, characterized in that: It also includes a fixing component (400), which includes a connector (401) disposed on the top of the tank body (301) and a nut (402) fastened to the connector (401); The connector (401) is provided with an external threaded surface at the position that matches the nut (402), and the connector (401) is provided with a through hole along the axial direction that matches the sampling tube (303). The nut (402) has a receiving cavity (404) inside, the bottom surface of the receiving cavity (404) is open, the inner side wall of the receiving cavity (404) is provided with a threaded surface, and the top surface of the nut (402) has a through hole that is compatible with the sampling tube (303).

8. The sewage mixing device as described in claim 7, characterized in that: The fixing component (400) also includes a retainer (403), which is shaped like an inverted frustum. The retainer (403) has an axial through hole inside, which is adapted to the sampling tube (303). The large-diameter end of the retainer (403) is located inside the nut (402), and the small-diameter end of the retainer (403) is adapted to be inserted into the top surface of the through hole of the connector (401). The retainer (403) can deform inside the nut (402).

9. The wastewater mixing device as described in any one of claims 5 to 8, characterized in that: It also includes a limiting component (500), which includes a limiting ring (501). The outer wall of the limiting ring (501) is provided with a plurality of connecting ribs (502), and the other end of the connecting ribs (502) is provided at the bottom of the inner side of the tank body (301).

10. The wastewater mixing device as described in claim 9, characterized in that: The limiting component (500) further includes limiting ribs (503), and several limiting ribs (503) are provided, which are respectively provided on the bottom surface of the limiting ring (501) and extend along the axial direction of the limiting ring (501).

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