Automatic floor drain drainage flow testing system
By designing an automated floor drain flow rate testing system, the problem of human error in manual testing was solved, realizing fully automated control and accurate measurement of floor drain flow rate, ensuring the accuracy of measurement results and the integrity of the test.
Patent Information
- Application Number
- CN202610003572.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-05
- Publication Date
- 2026-02-24
AI Technical Summary
The existing floor drain flow rate testing system is manually operated, which is prone to inaccurate and inconsistent measurement results due to human error.
An automated floor drain flow rate testing system was designed, including a water supply system, a drainage system, an automatic height measuring device, a diversion system, and a flow rate testing system. It achieves fully automated control and accurate measurement, and ensures the accuracy and consistency of the measurement through a laser length measuring instrument and automated equipment.
It achieves fully automated measurement of floor drain flow rate, ensuring data accuracy and test integrity, and improving work efficiency and applicability.
Smart Images
Figure CN121558128A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of water flow testing, and specifically relates to an automatic testing system for the drainage flow of a floor drain. Background Technology
[0002] The floor drain flow rate test is conducted according to the GB / T 27710-2020 "Floor Drain" standard. Currently, domestically manufactured and sold floor drain flow rate testing systems are all manual tests. This involves manually controlling the inlet water flow rate using a manual valve, visually stabilizing the water level in the tank using a steel ruler, and then recording the flow meter reading. The standard requires the floor drain to be installed in a standard water tank, ensuring the water depth submerged in the drain is constant at (15±1) mm. The drain flow rate is then measured, and this value is the floor drain flow rate. Three tests are conducted, with the error between every two tests not exceeding 4%. The average of the three tests is taken as the test result. Manual control of the ball valve and the current water level inevitably introduce errors, affecting the measurement results and leading to deviations and inaccuracies. Summary of the Invention
[0003] This invention provides an automated floor drain flow rate testing system that can automatically measure floor drain flow rate, with fully automated on-site control, ensuring data authenticity and test accuracy, and meeting the authority of standards.
[0004] The technical solution of this invention is: an automated floor drain flow rate testing system, characterized in that it includes a water supply system, a drainage system, an automatic height measuring device, a diversion system, and a flow rate testing system; wherein the water supply system provides a constant flow water source required for system testing; the drainage system includes automatic drainage and overflow functions to prevent water from the water supply system from flowing out of the water tank; the automatic height measuring device realizes automatic measurement and control of the liquid level height in the test water tank; the diversion system realizes the diversion of excess water flow in the pipeline; the flow rate testing system is responsible for measuring the drainage flow rate; the automatic height measuring device includes: a laser length measuring instrument and a mounting plate; the laser length measuring instrument is mounted on the mounting plate through mounting slots on the mounting plate.
[0005] Furthermore, the water supply system includes: a water tank, a first internal thread straight connector, an elbow, a Y-type filter, a first shut-off valve, an internal thread union, a water pump, a first equal-diameter elbow, a reducing straight connector, a first equal-diameter tee, an outlet ball valve, and a guide pipe; wherein the first internal thread straight connector is installed at the bottom of the water tank and connected to the elbow, the elbow is connected to the water inlet of the Y-type filter, the water outlet of the Y-type filter is connected to the first shut-off valve through the elbow, the internal thread union is connected to the first shut-off valve and the water inlet of the water pump respectively, the first equal-diameter elbow is connected to the water outlet of the water pump and the reducing straight connector respectively, the first equal-diameter tee is connected to the reducing straight connector and the outlet ball valve respectively, the outlet ball valve is connected to the guide pipe, and the guide pipe extends to the bottom of the test water tank.
[0006] Furthermore, the drainage system includes: a third internal thread straight connector, a fourth equal-diameter elbow, a drain solenoid valve, a third equal-diameter tee, a fifth equal-diameter elbow, a fourth internal thread straight connector, a sixth equal-diameter elbow, and a drain pipe; wherein one end of the third internal thread straight connector is connected to the water tank, and the other end is connected to the fourth elbow; the fourth elbow is connected to the drain solenoid valve; the fifth equal-diameter elbow is connected to both the third equal-diameter tee and the fourth equal-diameter straight connector; the fourth equal-diameter straight connector is connected to the water tank; the third equal-diameter tee is connected to both the drain solenoid valve and the sixth equal-diameter elbow; and the sixth equal-diameter elbow is connected to the drain pipe.
[0007] Furthermore, the diversion system includes: an equal diameter tee, a diversion valve, a second internal thread tee, a pressure sensor, and a ball valve; wherein the equal diameter tee is connected to the diversion valve, the threaded end of the second internal thread tee is connected to the pressure sensor, the second internal thread tee is connected to both the diversion valve and the ball valve, and the ball valve extends into the water tank.
[0008] Furthermore, the flow testing system includes: a test water tank, an external thread straight connector, a second equal-diameter elbow, a flow meter, a second equal-diameter tee, a second shut-off valve, and a third equal-diameter elbow; wherein the external thread straight connector is installed at the bottom of the test water tank and connected to the second equal-diameter elbow, the flow meter is connected to both the second equal-diameter elbow and the second equal-diameter tee, and the second equal-diameter tee is connected to both the third equal-diameter elbow and the second shut-off valve.
[0009] Furthermore, the water tank and the test water tank are mounted on the same equipment frame.
[0010] The present invention has the following beneficial effects: 1. This invention organically combines a water supply system, a drainage system, an automatic height measurement device, a diversion system, and a flow testing system into a whole. After the sample is loaded, clicking the test button will realize the fully automated completion of the test. The entire process is precisely controlled and accurately measured, realizing the fully automatic measurement of the drain flow rate, with a high degree of automation. 2. This invention achieves fully automated control and measurement of floor drain flow rate, ensuring data accuracy, experimental integrity, and the authority of the standard; 3. This invention has good reproducibility, high work efficiency, and wide applicability. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is the overall front view of the invention; Figure 2This is a top view of the entire invention; Figure 3 This is the overall left view of the invention; Figure 4 This is an overall bottom view of the invention; Reference numerals: 1. Water tank; 2. First internal thread straight connector; 3. Elbow; 4. Y-type filter; 5. First shut-off valve; 6. Internal thread union; 7. Water pump; 8. First equal diameter elbow; 9. Reducing straight connector; 10. First equal diameter tee; 11. Outlet ball valve; 12. Diverter valve; 13. Second internal thread tee; 14. Pressure sensor; 15. Ball valve; 16. Test water tank; 17. External thread straight connector; 18. Second equal diameter elbow; 19. Flow meter; 20. Second equal diameter tee; 21. Second shut-off valve; 22. Third equal diameter elbow; 23. Laser length measuring instrument; 24. Mounting plate; 25. Guide pipe; 26. Third internal thread straight connector; 27. Fourth equal diameter elbow; 28. Drain solenoid valve; 29. Third equal diameter tee; 30. Fifth equal diameter elbow; 31. Fourth internal thread straight connector; 32. Sixth equal diameter elbow; 33. Drain pipe. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. All other implementation methods obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0013] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and test methods.
[0014] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in the figure, this embodiment of an automated floor drain flow rate testing system includes a water supply system, a drainage system, an automatic height measuring device, a diversion system, and a flow rate testing system. The water supply system provides a constant flow of water for system testing. The drainage system includes automatic drainage and overflow functions to prevent water from flowing out of the water tank. The automatic height measuring device automatically measures and controls the water level in the test tank. The diversion system diverts excess water flow from the pipeline. The flow rate testing system is responsible for measuring the drainage flow rate.
[0015] The water supply system includes: water tank 1, first internal thread straight connector 2, elbow 3, Y-type filter 4, first shut-off valve 5, internal thread union 6, water pump 7, first equal diameter elbow 8, reducing straight connector 9, first equal diameter tee 10, outlet ball valve 11, and guide pipe 25. The front end of the first internal thread straight connector 2 is threadedly installed at the bottom of the water tank 1, and the rear end is connected to the front end of the elbow 3. The rear end of the elbow 3 is connected to the water inlet of the Y-type filter 4. The water outlet of the Y-type filter 4 is connected to the front end of the first shut-off valve 5 through the elbow 3. The rear end of the first shut-off valve 5 is connected to the front end of the internal thread union 6. The rear end of the internal thread union 6 is threadedly connected to the water inlet of the water pump 7. The water outlet of the water pump 7 is connected to the front end of the first equal diameter elbow 8. The rear end of the first equal diameter elbow 8 is connected to the front end of the reducing straight connector 9. The rear end of the reducing straight connector 9 is connected to the front end of the first equal diameter tee 10. The middle end of the first equal diameter tee 10 is connected to the front end of the outlet ball valve 11. The rear end of the outlet ball valve 11 is threadedly connected to the guide pipe 25. The guide pipe 25 extends into the bottom of the test water tank 16.
[0016] The drainage system includes: a third internal thread straight connector 26, a fourth equal diameter elbow 27, a drain solenoid valve 28, a third equal diameter tee 29, a fifth equal diameter elbow 30, a fourth internal thread straight connector 31, a sixth equal diameter elbow 32, and a drain pipe 33; The front end of the third internal thread straight connector 26 is connected to the water tank 1 via a thread, and the rear end is connected to the front end of the fourth elbow 27. The rear end of the fourth elbow 27 is connected to the front end of the drain solenoid valve 28. The rear end of the drain solenoid valve 28 is connected to the front end of the third equal diameter tee 29. The middle end of the third equal diameter tee 29 is connected to the front end of the fifth equal diameter elbow 30. The rear end of the fifth equal diameter elbow 30 is connected to the front end of the fourth equal diameter straight connector 31. The rear end of the fourth equal diameter straight connector 31 is connected to the water tank 1 via a thread. The rear end of the third equal diameter tee 29 is connected to the front end of the sixth equal diameter elbow 32. The rear end of the sixth equal diameter elbow 32 is connected to the drain pipe 33.
[0017] The automatic height measuring device includes: a laser length measuring instrument 23 and a mounting plate 24; The laser length measuring instrument 23 is mounted on the mounting plate 24 through the mounting strip holes on the mounting plate 24.
[0018] The flow distribution system includes: equal diameter tee 10, flow distribution valve 12, second internal thread tee 13, pressure sensor 14, and ball valve 15; The rear end of the equal diameter tee 10 is connected to the front end of the diverter valve 12, the rear end of the diverter valve 12 is connected to the front end of the second internal thread tee 13, the threaded end of the second internal thread tee 13 is connected to the pressure sensor 14, and the rear end of the second internal thread tee 13 is connected to the ball valve 15, which extends into the water tank 1.
[0019] The flow testing system includes: a test water tank 16, an external thread straight connector 17, a second equal diameter elbow 18, a flow meter 19, a second equal diameter tee 20, a second shut-off valve 21, and a third equal diameter elbow 22; The front end of the external threaded straight connector 17 is installed at the bottom of the test water tank 16 by a thread, and the rear end is connected to the front end of the second equal diameter elbow 18. The rear end of the second equal diameter elbow 18 is connected to the front end of the flow meter 19. The rear end of the flow meter 19 is connected to the front end of the second equal diameter tee 20. The middle end of the second equal diameter tee 20 is connected to the third equal diameter elbow 22. The rear end of the second equal diameter tee 20 is connected to the second shut-off valve 21.
[0020] Water tank 1 and test water tank 16 are installed on the same equipment frame and are not directly connected.
[0021] The experimental procedure is as follows:
[0022] The single-channel floor drain sample is installed on the test water tank 16. The mounting plate 24 is adjusted so that the laser length measuring instrument 23 is positioned above the test sample. The laser length measuring instrument reading at this time is marked as zero. After the water tank 1 is filled with water, the test begins. The water pump 7 is started to pump water from the water tank 1 into the test water tank 16 through the first shut-off valve 5, the internal thread union 6, the first equal diameter elbow 8, the reducing straight connector 9, the first equal diameter tee 10, the outlet ball valve 11, and the guide pipe 25. The water flows through the test sample, the external thread straight connector 17, and the second equal diameter elbow 18 into the flow meter 19. Then, it flows out through the second equal diameter tee 20, the second shut-off valve 21, and the third equal diameter elbow 22. The flow meter 19 transmits the measured value of the drainage flow of the test sample to the host computer software for recording in real time. The liquid level in test tank 16 begins to rise. The liquid level height is transmitted in real time to the host computer software via laser length measuring instrument 23. The host computer software controls the speed of water pump 7 to control the rising speed of the liquid level in test tank 16 based on the liquid level height. When the liquid level in test tank 16 reaches the set value, the system opens the diversion valve 12, allowing part of the water flow to return to water tank 1 through the first equal diameter tee 10, diversion valve 12, second internal thread tee 13, pressure sensor 14, and ball valve 15, thus keeping the liquid level in test tank 16 stable. After 15 seconds, the value of flow meter 19 when the water level is stable is recorded, which is the measured value of the drainage flow rate of the test sample. At the end of the experiment, water pump 7 and diversion valve 12 are automatically turned off, and the experiment ends.
[0023] When water pump 7 is started to pump water from water tank 1 to test water tank 16, the liquid level in test water tank 16 begins to rise. Initially, the water pump speed is high, and the liquid level rises rapidly. When the liquid level reaches 10mm, the water pump speed of 7 decreases, and the liquid level rise rate in test water tank 16 slows down. When the liquid level reaches 12mm, the water pump speed of 7 continues to decrease, and the liquid level rise rate in test water tank 16 continues to slow down. When the liquid level exceeds 16mm, the system opens the diversion valve 12 to divert part of the water flow to water tank 1. The liquid level in test water tank 16 begins to slowly decrease. When the liquid level stabilizes at 15mm, the diversion valve 12 locks, and the water pump speed of 7 remains constant to ensure that the liquid level in test water tank 16 remains stable at 15mm. After 15 seconds, the value of the flow meter 19 when the water level stabilizes is recorded, which is the measured value of the drainage flow rate of the test sample.
Claims
1. An automated floor drain flow rate testing system, characterized in that, This includes water supply systems, drainage systems, automatic height measurement devices, diversion systems, and flow testing systems; The water supply system provides a constant flow water source required for system testing; the drainage system includes automatic drainage and overflow functions to prevent water from flowing out of the water tank; the automatic height measuring device realizes automatic measurement and control of the liquid level height in the test water tank; the diversion system realizes the diversion of excess water flow in the pipeline; the flow test system is responsible for measuring the drainage flow; the automatic height measuring device includes: a laser length measuring instrument (23) and a mounting plate (24); the laser length measuring instrument (23) is installed on the mounting plate (24) through the mounting strip hole on the mounting plate (24).
2. The automated floor drain flow rate testing system as described in claim 1, characterized in that, The water supply system includes: a water tank (1), a first internal thread straight connector (2), an elbow (3), a Y-type filter (4), a first shut-off valve (5), an internal thread union (6), a water pump (7), a first equal-diameter elbow (8), a reducing straight connector (9), a first equal-diameter tee (10), an outlet ball valve (11), and a guide pipe (25); wherein the first internal thread straight connector (2) is installed at the bottom of the water tank (1) and connected to the elbow (3), the elbow (3) is connected to the inlet end of the Y-type filter (4), and the Y-type filter (4) is connected to the outlet end of the filter (4). The outlet of the filter (4) is connected to the first shut-off valve (5) via the elbow (3). The internal threaded joint (6) is connected to the first shut-off valve (5) and the inlet of the water pump (7) respectively. The first equal diameter elbow (8) is connected to the outlet of the water pump (7) and the reducing straight connector (9) respectively. The first equal diameter tee (10) is connected to the reducing straight connector (9) and the outlet ball valve (11) respectively. The outlet ball valve (11) is connected to the guide pipe (25). The guide pipe (25) extends into the bottom of the test water tank (16).
3. The automated floor drain flow rate testing system as described in claim 2, characterized in that, The drainage system includes: a third internal thread straight connector (26), a fourth equal diameter elbow (27), a drain solenoid valve (28), a third equal diameter tee (29), a fifth equal diameter elbow (30), a fourth internal thread straight connector (31), a sixth equal diameter elbow (32), and a drain pipe (33); one end of the third internal thread straight connector (26) is connected to the water tank (1), and the other end is connected to the fourth elbow (27). The fourth elbow (27) is connected to the drain solenoid valve (28). The fifth equal diameter elbow (30) is connected to the third equal diameter tee (29) and the fourth equal diameter straight connector (31) respectively. The fourth equal diameter straight connector (31) is connected to the water tank (1). The third equal diameter tee (29) is connected to the drain solenoid valve (28) and the sixth equal diameter elbow (32) respectively. The sixth equal diameter elbow (32) is connected to the drain pipe (33).
4. The automated floor drain flow rate testing system as described in claim 3, characterized in that, The diversion system includes: equal diameter tee (10), diversion valve (12), second internal thread tee (13), pressure sensor (14), and ball valve (15); wherein the equal diameter tee (10) is connected to the diversion valve (12), the threaded end of the second internal thread tee (13) is connected to the pressure sensor (14), the second internal thread tee (13) is connected to the diversion valve (12) and the ball valve (15) respectively, and the ball valve (15) extends into the water tank (1).
5. The automated floor drain flow rate testing system as described in claim 4, characterized in that, The flow test system includes: a test water tank (16), an external thread straight connector (17), a second equal diameter elbow (18), a flow meter (19), a second equal diameter tee (20), a second shut-off valve (21), and a third equal diameter elbow (22); wherein the external thread straight connector (17) is installed at the bottom of the test water tank (16) and connected to the second equal diameter elbow (18), the flow meter (19) is connected to the second equal diameter elbow (18) and the second equal diameter tee (20) respectively, and the second equal diameter tee (20) is connected to the third equal diameter elbow (22) and the second shut-off valve (21) respectively.
6. The automated floor drain flow rate testing system as described in claim 5, characterized in that, Water tank (1) and test water tank (16) are mounted on the same equipment frame.