阅读说明：本技术 一种浮球-双拉线式液位流速在线监测装置 (Floating ball-double-pull-wire type liquid level and flow rate on-line monitoring device ) 是由 李思辰 周明连 董红 王增义 于丽昕 王欢欢 杨超 徐克举 赵东方 闫睿 关萍 于 2019-12-24 设计创作，主要内容包括：本发明公开了一种浮球-双拉线式液位流速在线监测装置,涉及排水管道液位流速监测设备技术领域,包括：两个框架,对称安装在检查井的内壁上；第一主机箱和第二主机箱,分别设置于所述两个框架内,所述第一主机箱内设置有中央处理器和通讯模块,所述第二主机箱内设置有线缆；第一拉绳位移传感器和第二拉绳位移传感器,分别设置于所述第一主机箱和第二主机箱下侧,所述第一拉绳位移传感器与所述中央处理器电性连接,所述第二拉绳位移传感器通过线缆与所述中央处理器电性连接；浮球,两端分别通过第一拉绳和第二拉绳与所述第一拉绳位移传感器和第二拉绳位移传感器相连接；该装置使用方便,测量准确,可以实现排水管道内液体的液位和流速的实时监测。(The invention discloses a floating ball-double pull wire type liquid level and flow velocity online monitoring device, which relates to the technical field of drainage pipeline liquid level and flow velocity monitoring equipment and comprises the following components: the two frames are symmetrically arranged on the inner wall of the inspection well; the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box; the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable; the two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through a first pull rope and a second pull rope; the device is convenient to use, measures accurately, can realize the real-time supervision of the liquid level and the velocity of flow of liquid in the drainage pipe.)

1. The utility model provides a floater-two stay-supported liquid level velocity of flow on-line monitoring device which characterized in that, the device includes:

the two frames are symmetrically arranged on the inner wall of the inspection well;

the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;

the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;

and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.

2. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein wall-hanging screws are arranged on the rear sides of the two frames.

3. The floating ball-double-pull-wire type online liquid level and flow rate monitoring device as claimed in claim 1, wherein a fixed pulley is disposed inside the frame below the first pull rope displacement sensor and the second pull rope displacement sensor, and the first pull rope and the second pull rope are connected between the floating ball and the first pull rope displacement sensor and the second pull rope displacement sensor by bypassing the fixed pulley.

4. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the first main box and the second main box are sealed waterproof boxes.

5. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the central processing unit is a single chip microcomputer unit.

6. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 1, wherein the communication module is communicatively connected with a remote terminal.

7. The floating ball-double-pull wire type liquid level and flow rate online monitoring device as claimed in claim 6, wherein the communication module is a 4G module, and the remote terminal is a remote PC terminal.

8. The floating ball-double stay wire type liquid level and flow rate on-line monitoring device as claimed in claim 1, wherein the frame is made of aluminum profile.

9. The floating ball-double-pull wire type on-line liquid level and flow rate monitoring device as claimed in claim 1, wherein the two ends of the floating ball are symmetrically provided with pull rope fixing nuts, the floating ball is an oval hollow ball, and the depth of the part of the floating ball submerged below the liquid level is 1/3-1/2 of the diameter of the floating ball.

10. The floating ball-double pull wire type online liquid level and flow rate monitoring device as claimed in claim 1, wherein the first main box further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.

Technical Field

The invention belongs to the technical field of drainage pipeline liquid level flow rate monitoring equipment, and particularly relates to a floating ball-double-pull-wire type liquid level flow rate online monitoring device.

Background

The interior environment of the drainage pipeline is harsh, the liquid flow condition is changeable, and the use requirement for the pipeline flowmeter is relatively strict, and the method mainly comprises the following steps: the anti-interference capability is strong, and the interference of impurities in the liquid can be resisted; the drainage pipeline has narrow space, the places for installation mainly comprise various wells, and the liquid level flow velocity instrument has low requirement on the installation space and is easy to fix; the use cost is low, the large-scale popularization can be realized, and besides the price of the equipment, the installation cost and the later maintenance cost also need to be considered; the remote data transmission and real-time online monitoring can be carried out. In contrast to the above requirements, all the existing flowmeters have various defects and cannot meet the use requirements. Such as: the rotor type flow velocity meter is easy to hang garbage when in use; the Doppler flowmeter has strong waterproof and anti-fouling capability, but has high cost and cannot be popularized in a large area.

Disclosure of Invention

The invention aims to provide a floating ball-double-pull-wire type liquid level and flow rate online monitoring device aiming at the defects in the prior art.

In order to achieve the above object, the present invention provides a floating ball-double pull line type liquid level and flow rate online monitoring device, comprising:

the two frames are symmetrically arranged on the inner wall of the inspection well;

the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;

the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;

and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.

Optionally, wall hanging screws are arranged on the rear sides of the two frames.

Optionally, a fixed pulley is disposed inside the frame below each of the first rope displacement sensor and the second rope displacement sensor, and the first rope and the second rope are connected between the floating ball and the first rope displacement sensor and the second rope displacement sensor by bypassing the fixed pulley.

Optionally, the first mainframe box and the second mainframe box are both sealed waterproof boxes.

Optionally, the central processing unit is a single chip microcomputer unit.

Optionally, the communication module is in communication connection with a remote terminal.

Optionally, the communication module is a 4G module, and the remote terminal is a remote PC terminal.

Optionally, the frame is made of an aluminum profile.

Optionally, two ends of the floating ball are symmetrically provided with a pull rope fixing nut, the floating ball is an elliptical hollow sphere, and the depth of the part of the floating ball immersed below the liquid level is 1/3-1/2 of the diameter of the floating ball.

Optionally, the first mainframe box further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, wherein the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.

The invention provides a floating ball-double-pull-wire type liquid level and flow rate online monitoring device, which has the beneficial effects that: the device is provided with two stay cord displacement sensors, the two stay cord displacement sensors are respectively connected to two ends of the floating ball through the stay cords, the two stay cord displacement sensors are pulled through the position change of the floating ball on the liquid level, and then the liquid level and the flow rate of liquid in the drainage pipeline are calculated through the stay cord length reading measured by the two stay cord displacement sensors and the geometric relation between the stay cords, so that the device is convenient to use and accurate in measurement; the device has the advantages that the communication module is arranged, the monitoring result can be transmitted to the remote terminal in real time, remote monitoring is achieved, the structure is simple, the installation is convenient, and the cost is saved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Fig. 1 shows a schematic structural diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.

Fig. 2 shows a schematic installation diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.

Fig. 3 shows an electric control schematic diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.

Fig. 4 shows an overall circuit schematic diagram of a float-double-pull-line type liquid level and flow rate online monitoring device according to an embodiment of the invention.

Description of reference numerals:

1. a frame; 2. an inspection well; 3. a first main chassis; 4. a second main chassis; 5. a central processing unit; 6. a communication module; 7. a cable; 8. a first pull cord displacement sensor; 9. a second pull rope displacement sensor; 10. a floating ball; 11. a first pull cord; 12. a second pull cord; 13. wall hanging screws; 14. a fixed pulley; 15. a single chip unit; 16. a remote terminal; 17. a 4G module; 18. a remote PC terminal; 19. fixing a nut; 20. a power supply component; 21. a zero setting switch; 22. an electromagnetic relay interrupt switch; 23. a power source; 24. a power switch; 25. a multi-path power supply distribution board; 26. a voltage division module; 27. an electromagnetic relay; 28. a first voltage reduction module; 29. a second voltage reduction module; 30. RS232 changes to TTL module; 31. arranging a female end; 32. GND1 bus terminal; 33. a first row of nuts; 34. a second row of nuts; 35. a third row of nuts; 36. a fourth row of nuts; 37. GND2 bus terminal; 38. a first resistor; 39. a second resistor.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The invention provides a floating ball-double-stay-wire type liquid level and flow rate on-line monitoring device, which comprises:

the two frames are symmetrically arranged on the inner wall of the inspection well;

the first mainframe box and the second mainframe box are respectively arranged in the two frames, a central processing unit and a communication module are arranged in the first mainframe box, and a cable is arranged in the second mainframe box;

the first stay rope displacement sensor and the second stay rope displacement sensor are respectively arranged at the lower sides of the first mainframe box and the second mainframe box, the first stay rope displacement sensor is electrically connected with the central processing unit, and the second stay rope displacement sensor is electrically connected with the central processing unit through a cable;

and two ends of the floating ball are respectively connected with the first pull rope displacement sensor and the second pull rope displacement sensor through the first pull rope and the second pull rope.

Specifically, the cable is provided with a redundant part in the second mainframe box so as to be suitable for inspection wells with different sizes, and a sealing ring is arranged on the outer side of the cable and detachably connected with the second mainframe box; the floater floats on the interior liquid level of drainage pipe that awaits measuring, along with the rising and the decline of liquid level reciprocate, through first stay cord and the first stay cord displacement sensor of second stay cord pulling and second stay cord displacement sensor, the extension length of first stay cord displacement sensor and the real-time measurement stay cord of second stay cord displacement sensor, and carry data signal to central processing unit in, central processing unit is according to stay cord length and geometric relation, can calculate the liquid level height and the velocity of flow of liquid in the drainage pipe, transmit monitoring result to remote terminal through communication module, convenient receipt.

In one example, the two frame rear sides are each provided with a wall hanging screw.

Particularly, the arrangement of the wall hanging screw facilitates the fixing and the dismounting of the device in the inspection well.

In one example, a fixed pulley is arranged inside the frame below the first rope displacement sensor and the second rope displacement sensor, and the first rope and the second rope are connected between the floating ball and the first rope displacement sensor and the second rope displacement sensor by bypassing the fixed pulley.

Specifically, the fixed pulley is arranged to guide the pull rope, so that friction force is reduced, and monitoring precision is improved.

In one example, the first and second main cabinets are sealed waterproof cabinets.

Specifically, the first mainframe box and the second mainframe box play a role in protecting internal components.

In one example, the central processing unit is a single chip unit.

In one example, the communication module is communicatively coupled to a remote terminal.

In one example, the communication module is a 4G module, and the remote terminal is a remote PC terminal.

In one example, the frame is made of aluminum profile.

In one example, the two ends of the floating ball are symmetrically provided with the pull rope fixing nuts, the floating ball is an oval hollow sphere, and the depth of the part of the floating ball submerged below the liquid level is 1/3 to 1/2 of the diameter of the floating ball.

Specifically, the first pull rope and the second pull rope at two ends of the floating ball can be conveniently connected and detached through the matching of the screw and the fixing nut.

In other examples, the floating ball can also be a hollow ball or a hollow ball with a conical tail, and whether the floating ball is the hollow ball or the hollow ball with the conical tail, the part of the floating ball submerged below the liquid level is not more than 1/2 of the diameter size of the floating ball, so that floating objects or garbage on the liquid level can be prevented from being hung on the floating ball, and the monitoring precision is prevented from being influenced.

In one example, the first main cabinet further comprises a power supply assembly, a zero switch and an electromagnetic relay interrupt switch, wherein the zero switch is electrically connected with the power supply assembly and the central processing unit, and the electromagnetic relay interrupt switch is electrically connected with the power supply assembly and the central processing unit.