Underwater testing system and testing methods for sewage lifting stations

Abstract

This application relates to an underwater testing system and method for sewage lifting stations. The underwater testing system includes a testing container, a mounting frame, an inlet pipe, a drain pipe, and an exhaust pipe. The inner cavity of the testing container is filled with liquid to submerge the sewage lifting station. The mounting frame is connected to the testing container, with one end extending beyond the liquid surface of the testing container. This extended end of the mounting frame is used to fix the control cabinet of the sewage lifting station. The inlet pipe connects to the inlet of the sewage lifting station to supply sewage. The drain pipe connects to the outlet of the sewage lifting station to discharge sewage. The exhaust pipe connects to the exhaust port of the sewage lifting station. During testing, the system must operate continuously for more than 24 hours, observing the deformation of the water collection tank assembly to determine if it meets normal usage requirements. If the deformation of the water collection tank does not exceed 5mm, it meets the requirements; if the deformation exceeds 5mm, it does not meet the requirements.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, and in particular to an underwater detection system and method for wastewater lifting stations. Background Technology

[0002] A sewage lifting station is a drainage device used in basements, ships, vehicles, and other locations far from drainage risers or with poor drainage conditions. It collects and treats domestic wastewater from toilets. It is usually a complete system that can solve public health problems in certain special locations. Fully automatic sewage lifting stations are mainly used in basements and other locations far from drainage risers where gravity drainage is not possible for the removal of sewage from sanitary fixtures. They can also be used in ships, vehicles, and other situations with poor drainage conditions.

[0003] Before using a sewage lifting station, it is usually tested, typically only to check its airtightness. However, in extreme cases of flooding, it's impossible to determine whether the sewage lifting station can still function properly. Summary of the Invention

[0004] Based on this, an underwater testing system and method for sewage lifting stations are provided. The underwater testing system can be used to determine whether the sewage lifting station can be used normally by judging the degree of deformation of the collection tank of the sewage lifting station in extreme situations of flooding.

[0005] To this end, in a first aspect, embodiments of this application provide an underwater detection system for a sewage lifting station, comprising: a detection container having an inner cavity filled with liquid for submerging the sewage lifting station; a mounting bracket connected to the detection container with one end extending beyond the liquid surface of the detection container, the end of the mounting bracket extending beyond the liquid surface of the detection container being used to fix the control cabinet of the sewage lifting station; an inlet pipe for connecting to the inlet of the sewage lifting station to supply sewage to the sewage lifting station; a drain pipe for connecting to the outlet of the sewage lifting station to discharge sewage from the sewage lifting station; and an exhaust pipe for connecting to the exhaust port of the sewage lifting station.

[0006] In one embodiment, a test water tank is also included, with the inlet end of the inlet pipe connected to the test water tank and the outlet end of the drain pipe connected to the test water tank.

[0007] In one embodiment, the water inlet pipe is provided with an inlet valve, and / or the drain pipe is provided with an outlet valve.

[0008] In one embodiment, the drainage pipe is equipped with a pressure measuring system located between the outlet valve and the sewage lifting device.

[0009] In one embodiment, the drainage pipe is further equipped with a flow meter located between the outlet valve and the test water tank.

[0010] In one embodiment, the exhaust pipe is provided with an exhaust valve.

[0011] Secondly, this application provides an underwater testing method for a sewage lifting station, applied to the underwater testing system for sewage lifting stations described in any of the above claims. The underwater testing method includes: placing the sewage lifting station into a testing container, submerging the sewage lifting station below the liquid surface of the testing container, with the control cabinet of the sewage lifting station mounted on an installation frame extending beyond the liquid surface of the testing container; connecting an inlet pipe to the inlet of the sewage lifting station, connecting a drain pipe to the outlet of the sewage lifting station, and connecting an exhaust pipe to the exhaust port of the sewage lifting station; introducing sewage into the sewage lifting station through the inlet pipe, and discharging the sewage from the sewage lifting station through the drain pipe, with a continuous testing time of not less than 24 hours.

[0012] In one embodiment, the inlet end of the water inlet pipe is connected to the test water tank, and the outlet end of the drain pipe is connected to the test water tank, and the sewage circulates in the water inlet pipe, the drain pipe, and the test water tank.

[0013] In one embodiment, the pressure measurement system is used to detect the head of the sewage lifting station, and the flow meter is used to detect the flow rate of the sewage lifting station.

[0014] In one embodiment, the inlet valve, outlet valve, and vent valve are closed to test the airtightness of the sewage lifting station.

[0015] According to the underwater detection system and method for sewage lifting stations provided in this application, the underwater detection system for sewage lifting stations includes a detection container, a mounting frame, an inlet pipe, a drain pipe, and an exhaust pipe. The inner cavity of the detection container is filled with liquid for submerging the sewage lifting station. The mounting frame is connected to the detection container and one end extends out of the liquid surface of the detection container. The end of the mounting frame extending out of the liquid surface of the detection container is used to fix the control cabinet of the sewage lifting station. The inlet pipe is used to connect to the inlet of the sewage lifting station to supply sewage to the sewage lifting station. The drain pipe is used to connect to the outlet of the sewage lifting station to discharge sewage from the sewage lifting station. The exhaust pipe is used to connect to the exhaust port of the sewage lifting station. During testing, connect the inlet pipe to the inlet of the sewage lifting station, the outlet pipe to the outlet of the sewage lifting station, and the vent pipe to the sewage lifting station. Then, place the connected sewage lifting station below the liquid level in the test container. Install the control cabinet on the mounting bracket, and then start the sewage lifting station. Sewage is drawn into the sewage lifting station from the inlet pipe and discharged from the outlet pipe. Continuously operate for more than 24 hours, preferably 7 days. Then observe the deformation of the collection tank in the collection tank assembly to determine whether it meets normal use requirements. If the deformation of the collection tank does not exceed 5mm, it meets the requirements; if the deformation of the collection tank exceeds 5mm, it does not meet the requirements. Attached Figure Description

[0016] Figure 1 This illustration shows a structural schematic diagram of an underwater detection system for a sewage lifting station provided in an embodiment of this application;

[0017] Figure 2 An exploded view of a sewage lifting device provided in an embodiment of this application is shown;

[0018] Figure 3 This diagram illustrates the structure of a sewage lifting station according to an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Testing container; 2. Mounting bracket; 3. Inlet pipe; 31. Inlet valve; 4. Drain pipe; 41. Outlet valve; 42. Pressure testing system; 43. Flow meter; 5. Vent pipe; 51. Vent valve; 6. Sewage lifting station; 61. Water collection tank assembly; 62. Float switch assembly; 63. Submersible sewage pump assembly; 64. Inspection window assembly; 65. Check valve assembly; 66. Control cabinet; 7. Test water tank. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0024] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "lateral," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They 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, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Before using a sewage lifting station, it is usually tested, typically only to check its airtightness. However, if the sewage lifting station is flooded, it cannot be determined whether it can still be used normally.

[0026] To solve the above problems, refer to Figures 1-3 , Figure 1 This diagram illustrates the structure of an underwater detection system for a sewage lifting station according to an embodiment of this application (the arrows in the diagram indicate the direction of water flow). Figure 2 This is an exploded view of a sewage lifting device provided in an embodiment of this application. Figure 3 This diagram illustrates the structure of a sewage lifting station according to an embodiment of this application.

[0027] This application provides an underwater detection system for a sewage lifting station. The underwater detection system includes a detection container 1, a mounting frame 2, an inlet pipe 3, a drain pipe 4, and an exhaust pipe 5. The inner cavity of the detection container 1 is filled with liquid to submerge the sewage lifting station 6. The mounting frame 2 is connected to the detection container 1 and one end extends out of the liquid surface of the detection container 1. The end of the mounting frame 2 extending out of the liquid surface of the detection container 1 is used to fix the control cabinet 66 of the sewage lifting station 6. The inlet pipe 3 is used to connect to the inlet of the sewage lifting station 6 to supply sewage to the sewage lifting station 6. The drain pipe 4 is used to connect to the outlet of the sewage lifting station 6 to discharge sewage from the sewage lifting station 6. The exhaust pipe 5 is used to connect to the exhaust port of the sewage lifting station 6.

[0028] It should be understood that the sewage lifting station 6 includes a collection tank assembly 61, a float switch assembly 62, a submersible pump assembly 63, an inspection window assembly 64, a check valve assembly 65, and a control cabinet 66. The float switch assembly 62 is located inside the collection tank assembly 61. The submersible pump assembly 63 is connected to the collection tank assembly 61, the inspection window assembly 64 is connected to the collection tank assembly 61, and the check valve assembly 65 is connected to the collection tank assembly 61. The control cabinet 66 is electrically connected to the float switch assembly 62, the submersible pump assembly 63, and the check valve assembly 65 for controlling the operating status.

[0029] The underwater detection system for a sewage lifting station includes a detection container 1. This application does not limit the shape of the detection container 1; it can be rectangular, cylindrical, or any other shape. The detection container 1 has an inner cavity filled with sewage. When the sewage lifting station 6 is placed in the detection container 1, the sewage can submerge the sewage lifting station 6. To ensure that the sewage in the detection container 1 submerges the sewage lifting station 6, the depth of the detection container 1 is greater than 2m, and the sewage level in the detection container 1 is greater than 2m.

[0030] The testing container 1 is also equipped with a mounting bracket 2. One end of the mounting bracket 2 is connected to the testing container 1. The connection method can be a fixed connection or a detachable connection, which is not limited in this application. The other end extends out of the liquid surface of the testing container 1. The control cabinet 66 is installed at the mounting bracket 2. A groove for placing the control cabinet 66 can be provided at the mounting bracket 2. During installation, the control cabinet 66 is placed in the groove. The setting of the mounting bracket 2 allows the control cabinet 66 to extend out of the liquid surface of the testing container 1, thereby preventing the control cabinet 66 from being submerged in sewage and preventing the control cabinet 66 from malfunctioning.

[0031] The underwater detection system for the sewage lifting station also includes an inlet pipe 3, a drain pipe 4, and an exhaust pipe 5. All three pipes are rigid. The inlet pipe 3 connects to the inlet of the sewage lifting station 6, supplying water to it. To prevent sewage leakage between the inlet pipe 3 and the lifting station 6, a flange is used for connection, and the connection is sealed with a sealing ring. The drain pipe 4 connects to the outlet of the sewage lifting station 6, draining water from it. Again, to prevent leakage, a flange is used for connection, and the connection is sealed with a sealing ring. The exhaust pipe 5 connects to the exhaust port of the sewage lifting station 6, with its outlet extending beyond the liquid surface of the detection container 1. The exhaust pipe 5 helps balance the air pressure within the sewage lifting station 6.

[0032] During testing, connect the inlet pipe 3 to the inlet of the sewage lifting station 6, connect the outlet pipe 4 to the outlet of the sewage lifting station 6, and connect the exhaust pipe 5 to the sewage lifting station 6. Then, place the connected sewage lifting station 6 below the liquid level of the test container 1. Install the control cabinet 66 on the mounting bracket 2, and then start the sewage lifting station 6 to draw sewage from the inlet pipe 3 into the sewage lifting station 6 and then discharge it from the outlet pipe 4. Continue to work for more than 24 hours, preferably for 7 days. Then observe the deformation of the water collection tank in the water collection tank assembly 61 to determine whether it meets the requirements for normal use. If the deformation of the water collection tank does not exceed 5mm, it meets the requirements. If the deformation of the water collection tank exceeds 5mm, it does not meet the requirements.

[0033] Reference Figure 1 In some optional embodiments, a test water tank 7 is also included, with the inlet end of the inlet pipe 3 connected to the test water tank 7 and the outlet end of the drain pipe 4 connected to the test water tank 7. This forms a cycle, where wastewater flows from the test water tank 7 into the inlet pipe 3, from the inlet pipe 3 into the wastewater lifting station 6, then from the wastewater lifting station 6 into the drain pipe 4, and finally from the drain pipe 4 back into the test water tank 7. The design of the test water tank 7 allows the wastewater used for testing to be recycled, improving the utilization rate of the wastewater and avoiding waste.

[0034] In some optional embodiments, the water inlet pipe 3 is provided with a water inlet valve 31, which can control whether water enters the water inlet pipe 3 and adjust the water inlet flow rate of the water inlet pipe 3.

[0035] In some alternative embodiments, the drain pipe 4 is provided with a water outlet valve 41. The water outlet valve 41 can control whether water flows out of the drain pipe 4 and adjust the water flow rate of the drain pipe 4.

[0036] In some alternative embodiments, the drainage pipe 4 is equipped with a pressure measuring system 42 located between the outlet valve 41 and the sewage lifting station 6. The pressure measuring system 42 includes a pressure sensor for detecting the pressure in the drainage pipe 4, thereby calculating the head of the sewage lifting station 6.

[0037] In some optional embodiments, the drain pipe 4 is also equipped with a flow meter 43, which is located between the outlet valve 41 and the test water tank 7. The flow meter 43 can be used to detect the flow rate of the drain pipe 4, and when the flow meter 43 is located between the outlet valve 41 and the test water tank 7, the flow meter 43 can be used to detect the adjustment status of the outlet valve 41.

[0038] In some optional embodiments, an exhaust valve 51 is provided at the exhaust pipe 5. The exhaust valve 51 can be used to test the airtightness of the sewage lifting station 6. During the test, the inlet valve 31, the outlet valve 41, and the exhaust valve 51 are closed, and then the airtightness of the sewage lifting station 6 is tested. That is, this application does not require additional airtightness testing of the sewage lifting station 6 before testing, thus improving the convenience of testing the sewage lifting station 6.

[0039] Reference Figures 1-3 This application also includes an underwater testing method for a sewage lifting station. The testing method includes placing the sewage lifting station 6 into a testing container 1, submerging the sewage lifting station 6 below the liquid surface of the testing container 1. The control cabinet 66 of the sewage lifting station 6 is installed at the end of the mounting frame 2 that extends beyond the liquid surface of the testing container 1. An inlet pipe 3 is connected to the inlet of the sewage lifting station 6, a drain pipe 4 is connected to the outlet of the sewage lifting station 6, and an exhaust pipe 5 is connected to the exhaust port of the sewage lifting station 6. Sewage is introduced into the sewage lifting station 6 through the inlet pipe 3, and the sewage in the sewage lifting station 6 is discharged through the drain pipe 4. The continuous testing time is not less than 24 hours. Ideally, the testing period should be 7 days. Then, the deformation of the water collection tank in the water collection tank assembly 61 is observed to determine whether it meets normal usage requirements. If the deformation of the water collection tank does not exceed 5mm, the requirements are met; if the deformation of the water collection tank exceeds 5mm, the requirements are not met.

[0040] In some optional embodiments, the inlet end of the inlet pipe 3 is connected to the test water tank 7, and the outlet end of the drain pipe 4 is connected to the test water tank 7, allowing wastewater to circulate within the inlet pipe 3, drain pipe 4, and test water tank 7. This application, through the configuration of the test water tank 7, enables the wastewater used for testing to be recycled, improving the utilization rate of the wastewater and avoiding waste.

[0041] In some optional embodiments, the inlet valve 31, outlet valve 41, and vent valve 51 are closed to test the airtightness of the sewage lifting station 6. During the test, the inlet valve 31, outlet valve 41, and vent valve 51 are closed, and then the airtightness of the sewage lifting station 6 is tested. That is, this application does not require an additional airtightness test of the sewage lifting station 6 before testing, improving the convenience of testing the sewage lifting station 6.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An underwater detection system for a sewage lifting station, characterized in that, include: The testing container (1) has an inner cavity filled with liquid for submerging the sewage lifting station (6); Mounting bracket (2) is connected to the detection container (1) and one end extends out of the liquid surface of the detection container (1). The end of the mounting bracket (2) extending out of the liquid surface of the detection container (1) is used to fix the control cabinet (66) of the sewage lifting device (6). The inlet pipe (3) is used to connect to the inlet of the sewage lifting station (6) to supply sewage to the sewage lifting station (6); Drainage pipe (4) is used to connect to the outlet of the sewage lifting device (6) to discharge sewage to the sewage lifting device (6); An exhaust pipe (5) is used to connect to the exhaust port of the sewage lifting device (6).

2. The underwater detection system for sewage lifting stations according to claim 1, characterized in that, It also includes a test water tank (7), the inlet end of the water inlet pipe (3) is connected to the test water tank (7), and the outlet end of the drain pipe (4) is connected to the test water tank (7).

3. The underwater detection system for sewage lifting stations according to claim 2, characterized in that, The water inlet pipe (3) is equipped with a water inlet valve (31), and / or the water outlet pipe (4) is equipped with a water outlet valve (41).

4. The underwater detection system for sewage lifting stations according to claim 3, characterized in that, The drainage pipe (4) is equipped with a pressure measuring system (42), which is located between the outlet valve (41) and the sewage lifting device (6).

5. The underwater detection system for sewage lifting stations according to claim 3, characterized in that, The drainage pipe (4) is also equipped with a flow meter (43), which is located between the outlet valve (41) and the test water tank (7).

6. The underwater detection system for sewage lifting stations according to claim 1, characterized in that, The exhaust pipe (5) is equipped with an exhaust valve (51).

7. A method for underwater detection of a sewage lifting station, applied to the underwater detection system for a sewage lifting station as described in any one of claims 1-6, characterized in that, include: Place the sewage lifting device (6) into the testing container (1) so that the sewage lifting device (6) is submerged below the liquid surface of the testing container (1). The control cabinet (66) of the sewage lifting device (6) is installed on the end of the mounting frame (2) that extends out of the liquid surface of the testing container (1). Connect the inlet pipe (3) to the inlet of the sewage lifting device (6), connect the drain pipe (4) to the outlet of the sewage lifting device (6), and connect the exhaust pipe (5) to the exhaust port of the sewage lifting device (6). Wastewater is fed from the inlet pipe (3) into the wastewater lifting device (6), and the wastewater in the wastewater lifting device (6) is discharged from the drain pipe (4) for a continuous test time of not less than 24 hours.

8. The underwater detection system for sewage lifting stations according to claim 7, characterized in that, The inlet end of the water inlet pipe (3) is connected to the test water tank (7), and the outlet end of the drain pipe (4) is connected to the test water tank (7). The sewage circulates in the water inlet pipe (3), the drain pipe (4) and the test water tank (7).

9. The underwater detection system for sewage lifting stations according to claim 7, characterized in that, The pressure measurement system (42) is used to detect the head of the sewage lifting station (6), and the flow meter (43) is used to detect the flow rate of the sewage lifting station (6).

10. The underwater detection system for a sewage lifting station according to claim 7, characterized in that, The inlet valve (31), outlet valve (41), and vent valve (51) are closed to test the airtightness of the sewage lifter (6).

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