Water level monitoring and warning device for environmental engineering

Abstract

The utility model relates to the technical field of environmental engineering equipment, in particular to a water level monitoring and warning device for environmental engineering, which comprises a control box, the control box comprises a box body, a warning component is mounted at the top of the box body and used for prompting that the water level is too high or too low, and a pressure difference component is arranged at the bottom of the box body and connected with a pressure detection component. According to the utility model, the pressure-bearing pipe is inserted into water, water enters the pressure-bearing pipe from the water inlet pipe, the zero-returning valve is closed, the top of the pressure-bearing pipe is kept sealed, and the pressure difference exists between the internal liquid level and the external liquid level along with the change of the external water level, so that the pressure at the top of the pressure-bearing pipe is changed, and the pressure change can drive the movable piston to move; the pressure sensor is used for detecting the pressure change on the two sides, and the rising or falling degree of the water level can be judged; by opening the return-to-zero valve, the liquid level inside and outside the pressure-bearing pipe can be flush, and after the water level reaches the warning water level, the water level change condition is monitored again.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental engineering equipment, in particular to a water level monitoring and warning device for environmental engineering. Background Art

[0002] Environmental engineering is a branch of environmental science. It mainly studies how to protect and rationally utilize natural resources, and uses scientific means to solve increasingly serious environmental problems, improve environmental quality, and promote environmental protection and social development. It is a science and technology that studies and engages in preventing and controlling environmental pollution and improving environmental quality. Water level monitoring is also one of the tasks of environmental engineering.

[0003] The application number is 202220332774.4, and the environmental engineering water level monitoring and warning device provided includes a mounting base, a mounting column is arranged on the top surface of the mounting base, a groove is dug on the top surface of the mounting column, a detection-type braking mechanism is connected in the groove through a rotating shaft, a power supply mechanism and a warning mechanism are respectively arranged on the right side of the top surface of the mounting base, and are arranged from left to right, the power supply mechanism is connected to the output end of the warning mechanism, the warning mechanism includes an installation box, an installation groove, a buzzer and a second wire, the installation box is arranged on the right side of the top surface of the mounting base, an installation groove is dug in the installation box, a buzzer is arranged in the installation groove, and a second wire is arranged at the output end of the buzzer.

[0004] The device places a float on the water level. When the water level rises, the brake lever rotates through the shaft, and the other end connects the first wire with the output end of the second wire through the pressing plate, so that the buzzer sounds. However, in actual applications, the monitoring range of the device for the water level is affected by factors such as the length of the brake plate, the length of the connecting rope, and the height of the installation column. The adjustment of the monitoring range is relatively complicated. After the buzzer alarms, the rising water level cannot continue to be monitored. In addition, the device cannot warn when the water level drops. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a water level monitoring and warning device for environmental engineering.

[0006] The technical solution of the utility model is:

[0007] Water level monitoring and warning devices for environmental engineering include:

[0008] A control box, the control box comprising a box body, a warning component is installed on the top of the box body, the warning component is used to indicate that the water level is too high or too low, and a pressure difference component is provided at the bottom of the box body, and the pressure difference component is connected to a pressure detection component;

[0009] The pressure difference assembly includes a pressure-bearing pipe, the pressure-bearing pipe is used to be inserted into water, the top of the pressure-bearing pipe is connected to a zeroing valve through a three-way pipe, and the zeroing valve is used to control the sealing or opening of the top of the pressure-bearing pipe, so as to control the liquid level inside the pressure-bearing pipe to remain unchanged or be flush with the outside;

[0010] The pressure detection assembly includes a pneumatic cylinder, which is connected to a three-way pipe through an inlet and exhaust pipe. A movable piston is slidably installed in the pneumatic cylinder. The movable piston is used to keep the right end of the three-way pipe sealed. Pressure sensors are connected to both sides of the movable piston through a pressure transmission device. The pressure sensors are used to monitor the pressure on the left and right sides of the movable piston.

[0011] Preferably, a mounting tube is threadedly connected to the top of the pressure-bearing tube, and the mounting tube passes through the bottom of the box body and is fixedly connected to the opening below the three-way tube.

[0012] Preferably, a water inlet pipe is provided at the bottom of the pressure-bearing pipe, the water inlet pipe is communicated with the pressure-bearing pipe, and both ends of the water inlet pipe are connected.

[0013] Preferably, the zeroing valve is installed on the left side of the top of the three-way pipe, and the zeroing valve is connected to the opening at the left end of the three-way pipe through a pipeline.

[0014] Preferably, end covers are fixedly mounted at both ends of the pneumatic cylinder, the inlet and exhaust pipes are located in the center of the end covers, and one of the inlet and exhaust pipes is fixedly connected to the right end opening of the three-way pipe.

[0015] Preferably, a through hole is provided in the middle of the pressure sensor, and the axis of the pressure sensor coincides with the axis of the intake and exhaust pipes.

[0016] Preferably, the pressure transmission device comprises a guide rod, the guide rod is fixedly mounted on the left and right sides of the movable piston, a balance spring is provided on the guide rod, and the end faces of the balance spring are respectively against the pressure sensor and the movable piston.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model inserts a pressure-bearing pipe into water, and water enters the pressure-bearing pipe from the water inlet pipe. The top of the pressure-bearing pipe is kept sealed by closing the zeroing valve. As the external water level changes, there is a pressure difference between the inner and outer liquid surfaces, so that the air pressure at the top of the pressure-bearing pipe changes. The air pressure change can drive the movable piston to move, thereby squeezing the balance spring on the left or right side. The pressure sensor is used to detect the pressure change on both sides, and the degree of water level rise or fall can be determined. The zeroing valve can be opened to make the inner and outer liquid surfaces of the pressure-bearing pipe flush, so that the water level change can be re-monitored after the water level reaches the warning water level. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the control box structure in the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the control box in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the pressure difference component in the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the pressure detection component in the utility model.

[0024] The meaning of each number in the figure is:

[0025] 1. Control box; 11. Box body; 12. Mounting frame; 13. Storage battery; 14. Photovoltaic panel; 15. Sound and light alarm device; 16. Display device;

[0026] 2. Pressure difference assembly; 21. Installation pipe; 22. Pressure pipe; 23. Water inlet pipe; 24. Tee pipe; 25. Zero return valve;

[0027] 3. Pressure detection assembly; 31. Pneumatic cylinder; 32. End cover; 33. Inlet and outlet pipes; 34. Moving piston; 35. Guide rod; 36. Balance spring; 37. Pressure sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-5 The utility model describes the above technical solution in detail through the following embodiments:

[0032] Water level monitoring and warning devices for environmental engineering include:

[0033] The control box 1 comprises a box body 11 , an alarm component is installed on the top of the box body 11 , the alarm component is used to indicate that the water level is too high or too low, a pressure difference component 2 is arranged at the bottom of the box body 11 , and the pressure difference component 2 is connected to a pressure detection component 3 .

[0034] The warning assembly includes an audible and visual alarm device 15 and a display device 16. The audible and visual alarm device 15 is fixedly mounted on the top of the left and right sides of the box body 11 by screws, and the display device 16 is fixedly mounted on the top of the front side of the box body 11 by screws.

[0035] The sound and light alarm device 15 adopts a well-known loudspeaker or alarm lamp to issue sound and light alarms, and the display device 16 adopts a well-known LED display screen to display water level information.

[0036] A mounting frame 12 is welded to the bottom of the box body 11 , and the mounting frame 12 is used to support the box body 11 .

[0037] A storage battery 13 is placed in the box 11, and a photovoltaic panel 14 is fixedly mounted on the top of the box 11 through a bracket.

[0038] The photovoltaic panel 14 converts light energy into electrical energy and stores it in the storage battery 13. The storage battery 13 is connected to the sound and light alarm device 15 and the display device 16 through a guide, and is used to supply energy to the sound and light alarm device 15 and the display device 16.

[0039] The pressure difference assembly 2 includes a pressure-bearing pipe 22, which is used to be inserted into water. The top of the pressure-bearing pipe 22 is connected to a zeroing valve 25 through a three-way pipe 24. The zeroing valve 25 is used to control the sealing or opening of the top of the pressure-bearing pipe 22, thereby controlling the liquid level inside the pressure-bearing pipe 22 to remain unchanged or flush with the outside world.

[0040] The pressure-bearing pipe 22 can be a metal pipe. When the top of the pressure-bearing pipe 22 is open, after the pressure-bearing pipe 22 is inserted into the water, the external water enters from the bottom of the pressure-bearing pipe 22, and according to the principle of communicating vessels, the internal and external liquid levels are flush. If the top of the pressure-bearing pipe 22 is sealed, the liquid level inside the pressure-bearing pipe 22 will not change due to changes in the external water level, so there is a height difference between the internal and external liquid levels, and there is a pressure difference between the internal and external liquid levels, and then the air pressure inside the pressure-bearing pipe 22 and above the liquid level will change.

[0041] The top of the pressure-bearing pipe 22 is threadedly connected with a mounting pipe 21 , and the mounting pipe 21 passes through the bottom of the box body 11 and is fixedly connected to the lower opening of the three-way pipe 24 .

[0042] The installation pipe 21 is welded to the bottom of the box body 11. Since the pressure-bearing pipe 22 is threadedly connected to the installation pipe 21, the pressure-bearing pipe 22 of different lengths can be replaced according to the position of the water surface and the position of the box body 11.

[0043] A water inlet pipe 23 is provided at the bottom of the pressure-bearing pipe 22 . The water inlet pipe 23 and the pressure-bearing pipe 22 are communicated with each other, and both ends of the water inlet pipe 23 are connected.

[0044] The water inlet pipe 23 is welded to the pressure pipe 22. It should be noted that the axis of the water inlet pipe 23 should be parallel to the water flow direction. The two ends of the water inlet pipe 23 are connected to avoid clogging by debris in the water, thereby affecting the water flow in and out.

[0045] The zeroing valve 25 is installed on the left side of the top of the three-way pipe 24, and the zeroing valve 25 is connected to the left end opening of the three-way pipe 24 through a pipeline.

[0046] The zeroing valve 25 is a known normally closed electromagnetic valve. When the zeroing valve 25 is powered on, it opens, and the top of the pressure-bearing pipe 22 is connected to the outside atmosphere through the mounting pipe 21, the three-way pipe 24 and the zeroing valve 25.

[0047] The pressure detection component 3 includes a pneumatic cylinder 31, which is connected to the three-way pipe 24 through an air inlet and exhaust pipe 33. A movable piston 34 is slidably installed in the pneumatic cylinder 31. The movable piston 34 is used to keep the right end of the three-way pipe 24 sealed. Pressure sensors 37 are connected to both sides of the movable piston 34 through a pressure transmission device. The pressure sensor 37 is used to monitor the pressure on the left and right sides of the movable piston 34.

[0048] The movable piston 34 is used to keep the right end of the three-way pipe 24 sealed, and after the zeroing valve 25 is powered off and closed, the top of the pressure-bearing pipe 22 can be sealed.

[0049] End covers 32 are threadedly mounted at both ends of the pneumatic cylinder 31 , and an inlet and exhaust pipe 33 is located in the center of the end cover 32 , and one of the inlet and exhaust pipes 33 is fixedly connected to the right end opening of the three-way pipe 24 .

[0050] The air pressure change at the top of the pressure-bearing pipe 22 can be transmitted to the left side of the movable piston 34 through the mounting pipe 21, the three-way pipe 24 and the air inlet and exhaust pipe 33, and the air inlet and exhaust pipe 33 on the right side of the movable piston 34 is connected to the atmosphere, so that there is a pressure difference between the left and right sides of the movable piston 34.

[0051] A through hole is provided in the middle of the pressure sensor 37 , and the axis of the pressure sensor 37 coincides with the axis of the intake and exhaust pipes 33 .

[0052] The pressure sensor 37 is fixedly mounted on the inner side of the end cover 32 by screws. The middle through hole of the pressure sensor 37 is convenient for air to enter and exit.

[0053] The pressure transmission device includes a guide rod 35 , which is welded and installed on the left and right sides of the movable piston 34 . A balance spring 36 is sleeved on the guide rod 35 , and the end faces of the balance spring 36 are respectively against the pressure sensor 37 and the movable piston 34 .

[0054] When the zeroing valve 25 is opened, the top of the pressure-bearing pipe 22 is connected to the atmosphere, and the air inlet and exhaust pipe 33 on the left is also connected to the atmosphere. The air pressure on the left and right sides of the movable piston 34 is consistent, and the elastic force of the balance springs 36 on both sides is balanced, which can ensure that the movable piston 34 is located in the center of the pneumatic cylinder 31.

[0055] When the zeroing valve 25 is closed, the air pressure at the top of the pressure-bearing tube 22 changes with the external liquid level. The change in air pressure at the top of the pressure-bearing tube 22 will cause an air pressure difference between the left and right sides of the moving piston 34, thereby driving the moving piston 34 to move left or right, causing a difference in elastic force between the balance springs 36 on both sides, and thus a difference in the values ​​detected by the pressure sensors 37 on both sides. The larger the difference, the greater the difference in the liquid level inside and outside the pressure-bearing tube 22.

[0056] When using the device, the operator of this embodiment inserts the pressure pipe 22 into the water area to be monitored and opens the zeroing valve 25. When the external water enters from the water inlet pipe 23 and the internal and external liquid levels are flush, the zeroing valve 25 is closed and the water level at this time is recorded as the reference water level.

[0057] At the same time, when the zeroing valve 25 is opened, both ends of the movable piston 34 are connected to the atmosphere, and the pressure at both ends is consistent. At this time, the values ​​detected by the two pressure sensors 37 should be basically consistent.

[0058] After closing the zeroing valve 25, the top of the pressure-bearing pipe 22 remains sealed. When the external water level changes, the water level in the pressure-bearing pipe 22 remains basically unchanged, so there is a height difference between the internal and external liquid surfaces, and thus there is a pressure difference between the internal and external liquids, and then the air pressure at the top of the pressure-bearing pipe 22 changes.

[0059] The air pressure change at the top of the pressure-bearing pipe 22 can be transmitted to the left side of the movable piston 34 through the mounting pipe 21, the three-way pipe 24 and the air inlet and exhaust pipe 33, and the air inlet and exhaust pipe 33 on the right side of the movable piston 34 is connected to the atmosphere, so that there is a pressure difference between the left and right sides of the movable piston 34.

[0060] The pressure difference between the left and right sides of the movable piston 34 will drive the movable piston 34 to move leftward or rightward, causing a difference in elastic force between the balance springs 36 on both sides, and thus a difference in the values ​​detected by the pressure sensors 37 on both sides.

[0061] The pressure value on the left is greater than that on the right, indicating that the external liquid level is lower than the internal liquid level of the pressure tube 22, and the water level is in a falling state. The pressure value on the left is less than that on the right, indicating that the external liquid level is higher than the internal liquid level of the pressure tube 22, and the water level is in a rising state. The state of the water level can be displayed by the display device 16.

[0062] When the difference between the values ​​detected by the pressure sensors 37 on both sides is too large, a warning can be issued through the sound and light alarm device 15.

[0063] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water level monitoring and warning device for environmental engineering, characterized in that: include: A control box (1), the control box (1) comprising a box body (11), a warning component installed on the top of the box body (11), the warning component used to indicate that the water level is too high or too low, a pressure difference component (2) provided at the bottom of the box body (11), the pressure difference component (2) connected to a pressure detection component (3); The pressure difference assembly (2) comprises a pressure-bearing pipe (22), the pressure-bearing pipe (22) being used to be inserted into water, the top of the pressure-bearing pipe (22) being connected to a zeroing valve (25) via a three-way pipe (24), the zeroing valve (25) being used to control the sealing or opening of the top of the pressure-bearing pipe (22), thereby controlling the liquid level inside the pressure-bearing pipe (22) to remain unchanged or flush with the outside; The pressure detection assembly (3) comprises a pneumatic cylinder (31), the pneumatic cylinder (31) being connected to a three-way pipe (24) via an inlet and outlet pipe (33), a movable piston (34) being slidably mounted in the pneumatic cylinder (31), the movable piston (34) being used to keep the right end of the three-way pipe (24) sealed, and pressure sensors (37) being connected to both sides of the movable piston (34) via a pressure transmission device, the pressure sensors (37) being used to monitor the pressure on the left and right sides of the movable piston (34).

2. The water level monitoring and warning device for environmental engineering as claimed in claim 1, characterized in that: The top of the pressure-bearing pipe (22) is threadedly connected to a mounting pipe (21), and the mounting pipe (21) passes through the bottom of the box body (11) and is fixedly connected to the lower opening of the three-way pipe (24).

3. The water level monitoring and warning device for environmental engineering as claimed in claim 2, characterized in that: A water inlet pipe (23) is provided at the bottom of the pressure-bearing pipe (22); the water inlet pipe (23) and the pressure-bearing pipe (22) are in communication with each other, and both ends of the water inlet pipe (23) are connected.

4. The water level monitoring and warning device for environmental engineering as claimed in claim 1, characterized in that: The zeroing valve (25) is installed on the left side of the top of the three-way pipe (24), and the zeroing valve (25) is connected to the left end opening of the three-way pipe (24) through a pipeline.

5. The water level monitoring and warning device for environmental engineering as claimed in claim 1, characterized in that: End covers (32) are fixedly mounted at both ends of the pneumatic cylinder (31), and the inlet and outlet pipes (33) are located in the center of the end covers (32), and one of the inlet and outlet pipes (33) is fixedly connected to the right end opening of the three-way pipe (24).

6. The water level monitoring and warning device for environmental engineering as claimed in claim 1, characterized in that: A through hole is provided in the middle of the pressure sensor (37), and the axis of the pressure sensor (37) coincides with the axis of the intake and exhaust pipes (33).

7. The water level monitoring and warning device for environmental engineering as claimed in claim 1, characterized in that: The pressure transmission device comprises a guide rod (35) which is fixedly mounted on the left and right sides of the movable piston (34). A balance spring (36) is arranged on the guide rod (35). The end faces of the balance spring (36) are respectively against the pressure sensor (37) and the movable piston (34).

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