A sewage discharge measurement device

Abstract

The present invention discloses a sewage discharge measurement device, comprising: a metering valve seat, a metering component box, a wheel component and a metering component, wherein an inlet flange and an outlet flange are respectively arranged on both sides of the metering valve seat, a guide cone head and a cone tail seat are fixedly installed inside the metering valve seat, the wheel component is rotatably installed on the relative inner sides of the guide cone head and the cone tail seat, and the metering component box is fixedly installed on the top surface of the metering valve seat, and the input end is electrically connected with the output end of the wheel component and the metering component. In the present invention, by setting a multi-metering sensor component structure, the main metering gear seat and the metering gear rod are driven to rotate when the water flushes the wheel component, and the second metering sensor and the rotation counter on the surface of the main metering gear seat and the metering gear rod respectively perform different bases of measurement, thereby obtaining accurate measurement data, and performing mechanical transmission measurement in special scenarios to avoid interference caused by impurities in the water.

Description

Technical Field

[0001] The invention relates to the technical field of flow measurement, in particular to a sewage discharge measurement device. Background Art

[0002] At present, the flow rate of sewage discharge is mostly measured by the velocity-area method, standard section method, canal structure method and weir method. Among them, the standard section method, canal structure method and weir method have problems such as low measurement accuracy because they use hydraulic structures to estimate the flow rate. In order to achieve accurate measurement of sewage flow, most electronic sensors are used for velocity-area method measurement. Most traditional electronic sensors have some defects and deficiencies that cannot be ignored during use due to the inherent characteristics of the sensors and the influence of external conditions. For example, under strong electromagnetic fields, electronic sensors are easily affected by electromagnetic interference. When working at long distances, traditional electronic sensors are not stable enough in terms of power supply and long-distance signal transmission.

[0003] Common flow velocity measurement methods include acoustic Doppler, radar, rotor, etc. The acoustic Doppler type is greatly affected by water quality and is not suitable for use in places with sewage, turbid water, and water quality debris. In addition, most radar types use surface radar flow meters to measure the flow velocity at one or more points. The surface flow velocity is quite different from the flow velocity at the bottom of the channel, in the channel, and on the slope, and the data availability is poor. The rotor flow meter uses a mechanical principle and has problems such as mechanical wear during the measurement process, which is not suitable for real-time online flow measurement of sewage. In addition, the above flow velocity measurement methods need to consider the water depth measurement separately due to the siltation of the open channel, and other engineering measures need to be added. Some of them use the construction of flow measurement trusses and the navigation flow measurement method, which has problems such as long measurement time, discontinuous flow measurement, and inability to measure flow online in real time. In view of this, the existing problems are studied and improved, and a sewage discharge measurement device is provided to solve the current problems, aiming to achieve the purpose of solving problems and improving practical value through this technology. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the present invention is: a sewage discharge measurement device, comprising: a metering valve seat, a metering component box, a runner component and a metering component, wherein the two sides of the metering valve seat are respectively provided with an inlet flange and an outlet flange, the inside of the metering valve seat is fixedly installed with a guide cone head and a cone tail seat, the runner component is rotatably installed on the opposite inner sides of the guide cone head and the cone tail seat, the metering component box is fixedly installed on the top surface of the metering valve seat and the input end is electrically connected with the output end of the runner component and the metering component;

[0006] The impeller assembly includes an impeller body, a swivel seat, a first metering sensor and a transmission worm. The swivel seat is fixedly sleeved on the outer side of the impeller body. The first metering sensor is embedded and installed on the inner wall of the metering valve seat and is located on the outer side of the swivel seat. A plurality of permanent magnets are embedded and installed on the surface of the swivel seat. The transmission worm is fixedly installed on one side of the impeller body. The metering assembly includes a main shaft rod, a sleeve rod, a main metering gear seat and a metering gear rod. The sleeve rod is fixedly sleeved on the surface of the main shaft rod and an intermittent rotating tooth that is transmission-engaged with the surface of the metering gear rod is fixedly installed on the top. The metering gear rod is rotatably installed on the inner side of the metering valve seat and a rotation counter is fixedly connected to the top. The bottom end of the main shaft rod is provided with turbine teeth that mesh with the transmission worm, and the top end is meshed with the surface of the main metering gear seat. The top surface of the main metering gear seat is embedded and installed with a second metering sensor.

[0007] In a preferred example, the present invention can be further configured as follows: the guide cone head and the cone tail seat are respectively located on both sides of the runner assembly and are close to one side of the inlet flange and the outlet flange respectively, the guide cone head and the cone tail seat are teardrop-shaped structures, and the outer sides of the guide cone head and the cone tail seat are smooth and polished structures, and the outer sides of the guide cone head and the cone tail seat are fixedly installed with a plurality of fixed ears fixedly connected to the inner side of the metering valve seat.

[0008] In a preferred example, the present invention can be further configured as follows: the metering component box is a magnetic shielding box structure, a main control board is fixedly installed inside the metering component box, and a digital display screen is provided on the surface of the main control board, and the input end of the main control board is electrically connected to the output ends of the first metering sensor, the second metering sensor and the rotation counter.

[0009] In a preferred example, the present invention can be further configured as follows: the output end of the main control board is electrically connected to an Internet of Things communication module, and the Internet of Things communication module is one of zigbee or NB-lot.

[0010] In a preferred example, the present invention can be further configured as follows: the first metering sensor is a Hall sensor structure, and a plurality of the permanent magnet sheets are evenly spaced in the circumferential direction and distributed on the outer side of the rotating ring seat and are located in the same vertical plane as the first metering sensor.

[0011] In a preferred example, the present invention can be further configured as follows: the first metering sensor is a metal coil structure, the coil arrangement direction of the first metering sensor is perpendicular to the magnetic pole arrangement direction of the permanent magnet sheet, and the output end of the first metering sensor is electrically connected to a counting module.

[0012] In a preferred example, the present invention can be further configured as follows: the second metering sensor is a grating counting sensor structure, the rotation counter is a rotation counter structure, and the intermittent gear is a crank gear structure.

[0013] In a preferred example, the present invention can be further configured as follows: a waterproof compartment is provided at the bottom end of the metering component box, the main metering gear seat and the metering gear rod are rotatably installed inside the waterproof compartment, and the outer side of the shaft sleeve rod is rotatably sleeved with a shaft sealing cover fixed to the inner side of the waterproof compartment.

[0014] The beneficial effects achieved by the present invention are:

[0015] 1. In the present invention, a multi-metering sensor component structure is set up, and the main metering gear holder and the metering gear rod are driven to rotate when the water flushing wheel assembly rotates. The second metering sensor and the rotation counter on the surface of the main metering gear holder and the metering gear rod respectively perform metering in different bases, thereby obtaining accurate measurement data, and performing mechanical transmission metering in special scenarios to avoid interference caused by impurities in the water.

[0016] 2. In the present invention, the permanent magnet sheet and the first metering sensor move relative to each other under the drive of the impeller body, so that the inherent magnetism of the permanent magnet sheet is used to excite the first metering sensor to count, and the rotation speed and number of revolutions of the impeller body are measured. The micro-movement of the impeller body during the water flow can also be sensitively captured, thereby improving the detection accuracy.

[0017] 3. In the present invention, through the Internet of Things networking structure inside the metering component box, the main control board inside the metering component box obtains the detection information of the first metering sensor, the second metering sensor and the rotation counter, measures and digitally displays the product of the flow rate and the cross-sectional flow of the metering valve seat, and performs functions such as remote information display to improve the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a cross-sectional structure of a metering valve seat according to an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the installation structure of a rotating wheel assembly according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a runner assembly according to an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the transmission structure of the main metering gear holder according to an embodiment of the present invention;

[0023] Figure 6 The figure is a schematic diagram of the structure of a shaft sleeve rod and a metering gear rod according to an embodiment of the present invention.

[0024] Reference numerals:

[0025] 100, metering valve seat; 110, inlet flange; 120, outlet flange; 130, flow guide cone head; 140, cone tail seat; 200, metering component box; 131, fixing ear piece;

[0026] 300, rotor assembly; 310, impeller body; 320, swivel seat; 330, first metering sensor; 340, transmission worm; 321, permanent magnet sheet;

[0027] 400, metering assembly; 410, main shaft rod; 420, sleeve rod; 430, main metering gear seat; 440, metering gear rod; 421, intermittent gear; 431, second metering sensor; 441, rotation counter. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0029] A sewage discharge volume measuring device provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] Combination Figure 1-6 As shown, a sewage discharge measurement device provided by the present invention comprises: a metering valve seat 100, a metering component box 200, a runner component 300 and a metering component 400, wherein the two sides of the metering valve seat 100 are respectively provided with an inlet flange 110 and an outlet flange 120, a guide cone head 130 and a cone tail seat 140 are fixedly installed inside the metering valve seat 100, the runner component 300 is rotatably installed on the opposite inner sides of the guide cone head 130 and the cone tail seat 140, the metering component box 200 is fixedly installed on the top surface of the metering valve seat 100, and the input end is electrically connected with the output ends of the runner component 300 and the metering component 400;

[0031] The impeller assembly 300 includes an impeller body 310, a swivel seat 320, a first metering sensor 330 and a transmission worm 340. The swivel seat 320 is fixedly sleeved on the outer side of the impeller body 310. The first metering sensor 330 is embedded and installed on the inner wall of the metering valve seat 100 and is located on the outer side of the swivel seat 320. A plurality of permanent magnets 321 are embedded and installed on the surface of the swivel seat 320. The transmission worm 340 is fixedly installed on one side of the impeller body 310. The metering assembly 400 includes a main shaft rod 410, a sleeve rod 420, a main metering sensor 330 and a transmission worm 340. The metering gear seat 430 and the metering gear rod 440, the sleeve rod 420 is fixedly sleeved on the surface of the main shaft rod 410 and the top end is fixedly installed with an intermittent rotating tooth 421 that is transmission-engaged with the surface of the metering gear rod 440, the metering gear rod 440 is rotatably installed on the inner side of the metering valve seat 100 and the top end is fixedly connected with a rotation counter 441, the bottom end of the main shaft rod 410 is provided with a turbine tooth that is meshed with the transmission worm 340, and the top end is meshed with the surface of the main metering gear seat 430, and the top surface of the main metering gear seat 430 is embedded with a second metering sensor 431.

[0032] In this embodiment, the guide cone head 130 and the cone tail seat 140 are respectively located on both sides of the impeller assembly 300 and are close to one side of the inlet flange 110 and the outlet flange 120. The guide cone head 130 and the cone tail seat 140 are teardrop-shaped structures, and the outer sides of the guide cone head 130 and the cone tail seat 140 are smooth and polished structures. A plurality of fixed ears 131 fixedly connected to the inner side of the metering valve seat 100 are fixedly installed on the outer sides of the guide cone head 130 and the cone tail seat 140.

[0033] Specifically, the guide cone head 130 and the cone tail seat 140 are used to guide the water, so that the water washes the surface of the impeller body 310 and pushes the impeller body 310 to rotate, thereby eliminating the problem of measurement deviation caused by water turbulence.

[0034] In this embodiment, the metering component box 200 is a magnetic shielding box structure, a main control board is fixedly installed inside the metering component box 200, and a digital display screen is provided on the surface of the main control board, and the input end of the main control board is electrically connected to the output ends of the first metering sensor 330, the second metering sensor 431 and the rotation counter 441.

[0035] Specifically, the detection information of the first metering sensor 330, the second metering sensor 431 and the rotation counter 441 is obtained through the internal structure of the metering component box 200, and the flow rate and the cross-sectional flow of the metering valve seat 100 are measured and digitally displayed.

[0036] In this embodiment, the output end of the main control board is electrically connected to an Internet of Things communication module, and the Internet of Things communication module is one of zigbee or NB-lot.

[0037] Specifically, the detection information of the first metering sensor 330, the second metering sensor 431 and the rotation counter 441 is wirelessly transmitted through the Internet of Things communication module, and remote flow monitoring is performed through the Internet of Things communication.

[0038] In this embodiment, the first metering sensor 330 is a Hall sensor structure, and a plurality of the permanent magnet pieces 321 are evenly spaced and distributed on the outer side of the rotating ring seat 320 in the circumferential direction and are located in the same vertical plane as the first metering sensor 330 .

[0039] Specifically, by moving the permanent magnet piece 321 , the first metering sensor 330 and the permanent magnet piece 321 move relative to each other to cut the magnetic flux lines, thereby generating an excitation current, and the number of times the current is generated is counted.

[0040] In another embodiment, the first metering sensor 330 is a metal coil structure, the coil arrangement direction of the first metering sensor 330 is perpendicular to the magnetic pole arrangement direction of the permanent magnet sheet 321, and the output end of the first metering sensor 330 is electrically connected to a counting module.

[0041] Specifically, the first metering sensor 330 is used to sense the movement of the permanent magnet piece 321 on the surface of the rotating ring seat 320 to measure the movement speed and the rotation amount of the impeller body 310, so as to perform discharge metering in the water without magnetic interference.

[0042] In this embodiment, the second metering sensor 431 is a grating counting sensor structure, the rotation counter 441 is a rotation counter structure, and the intermittent gear 421 is a crank gear structure.

[0043] Specifically, the main shaft rod 410 and the sleeve rod 420 rotate synchronously and respectively drive the main metering gear seat 430 and the metering gear rod 440 to rotate. During the rotation of the main metering gear seat 430, the second metering sensor 431 on the surface counts the rotation of the main metering gear seat 430 in motion. At the same time, the intermittent gear 421 rotates to pick up and drive the metering gear rod 440 to rotate, and measurement is performed through the rotation counter 441. The main metering gear seat 430 and the metering gear rod 440 have a speed difference, and the different rotation systems of the two are used to perform signal measurement.

[0044] In this embodiment, a waterproof compartment is provided at the bottom end of the metering component box 200, the main metering gear seat 430 and the metering gear rod 440 are rotatably installed inside the waterproof compartment, and the outer side of the shaft sleeve rod 420 is rotatably sleeved with a shaft sealing cover fixed to the inner side of the waterproof compartment.

[0045] Specifically, the waterproof cavity is used to isolate the water flow inside the metering valve seat 100 from contact with the main metering gear seat 430 and the metering gear rod 440, so as to avoid damage to electronic components.

[0046] The working principle and use process of the present invention:

[0047] When the sewage discharge volume measuring device is used, the inlet flange 110 and the outlet flange 120 on both sides of the metering valve seat 100 are connected to the sewage discharge end and the discharge outlet respectively. When the metering valve seat 100 is working, the sewage water is guided along the guide cone head 130 to flush the surface of the impeller body 310, so that the impeller body 310 and the swivel seat 320 rotate. When the swivel seat 320 rotates, the surface permanent magnet piece 321 intermittently passes through the surface of the first metering sensor 330, and the first metering sensor 330 senses the passage of the permanent magnet piece 321. Whenever the permanent magnet piece 321 passes through the surface of the first metering sensor 330, the surface of the first metering sensor 330 senses the change in the magnetic field movement of the permanent magnet piece 321, and the first metering sensor 330 sends an electrical signal. The main control board inside the metering component box 200 measures the number of signal excitations of the first metering sensor 330, thereby measuring the amount of water passing through by measuring the number of revolutions of the impeller body 310 and the swivel seat 320, which is used to accurately measure the amount of water passing through in sewage that does not contain magnetic impurities;

[0048] When the wastewater contains ferromagnetic impurities, the first metering sensor 330 fails to measure through magnetic perception, that is, the accuracy is reduced. The main shaft rod 410 is driven by the transmission worm 340 to rotate during the rotation of the swivel seat 320. The main shaft rod 410 and the sleeve rod 420 rotate synchronously and respectively drive the main metering gear seat 430 and the metering gear rod 440 to rotate. During the rotation of the main metering gear seat 430, the second metering sensor 431 on the surface counts the rotation of the main metering gear seat 430 in motion. At the same time, the intermittent rotating gear 421 rotates to pick up and drive the metering gear rod 440 to rotate, and the metering is performed through the rotation counter 441. The main metering gear seat 430 and the metering gear rod 440 have a speed difference, and the signal is measured by using the different rotation systems of the two, using a mechanical transmission method.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sewage discharge measurement device, It is characterized in that include: A metering valve seat (100), a metering component box (200), a runner component (300) and a metering component (400), wherein the metering valve seat (100) is provided with an inlet flange (110) and an outlet flange (120) on both sides thereof, a flow guide cone head (130) and a cone tail seat (140) are fixedly installed inside the metering valve seat (100), the runner component (300) is rotatably installed on the opposite inner sides of the flow guide cone head (130) and the cone tail seat (140), the metering component box (200) is fixedly installed on the top surface of the metering valve seat (100) and the input end thereof is electrically connected to the output ends of the runner component (300) and the metering component (400), and the flow guide cone head (130) and the cone tail seat (140) are respectively located on both sides of the runner component (300) and close to one side of the inlet flange (110) and the outlet flange (120); The impeller assembly (300) comprises an impeller body (310), a swivel seat (320), a first metering sensor (330) and a transmission worm (340); the swivel seat (320) is fixedly sleeved on the outside of the impeller body (310); the first metering sensor (330) is embedded and installed on the inner wall of the metering valve seat (100) and is located on the outside of the swivel seat (320); a plurality of permanent magnet sheets (321) are embedded and installed on the surface of the swivel seat (320); the transmission worm (340) is fixedly installed on one side of the impeller body (310); the metering assembly (400) comprises a main shaft rod (410), a sleeve rod (420) and a plurality of permanent magnet sheets (321). , a main metering gear seat (430) and a metering gear rod (440), the sleeve rod (420) is fixedly sleeved on the surface of the main shaft rod (410) and the top end is fixedly mounted with an intermittent rotating tooth (421) that is transmission-engaged with the surface of the metering gear rod (440), the metering gear rod (440) is rotatably mounted on the inner side of the metering valve seat (100) and the top end is fixedly connected with a rotation counter (441), the bottom end of the main shaft rod (410) is provided with a turbine tooth that is meshed with the transmission worm (340), and the top end is meshed with the surface of the main metering gear seat (430), and the top surface of the main metering gear seat (430) is embedded with a second metering sensor (431).

2. A sewage discharge measurement device according to claim 1, It is characterized in that The guide cone head (130) and the cone tail seat (140) are of a teardrop-shaped structure, and the outer sides of the guide cone head (130) and the cone tail seat (140) are of a smooth surface structure. A plurality of fixed ears (131) fixedly connected to the inner side of the metering valve seat (100) are fixedly mounted on the outer sides of the guide cone head (130) and the cone tail seat (140).

3. A sewage discharge measurement device according to claim 1, It is characterized in that The metering component box (200) is a magnetic shielding box structure, a main control board is fixedly installed inside the metering component box (200), and a digital display screen is provided on the surface of the main control board, and an input end of the main control board is electrically connected to output ends of a first metering sensor (330), a second metering sensor (431) and a rotation counter (441).

4. A sewage discharge measurement device according to claim 3, It is characterized in that The output end of the main control board is electrically connected to an Internet of Things communication module, and the Internet of Things communication module is one of zigbee or NB-lot.

5. A sewage discharge measurement device according to claim 1, It is characterized in that The first metering sensor (330) is a Hall sensor structure, a plurality of the permanent magnet sheets (321) are evenly spaced and distributed in a circumferential direction on the outside of the rotating ring seat (320) and are located in the same vertical plane as the first metering sensor (330), and the first metering sensor (330) is a Hall sensor structure.

6. A sewage discharge measurement device according to claim 1, It is characterized in that The first metering sensor (330) is a metal coil structure, the coil arrangement direction of the first metering sensor (330) is perpendicular to the magnetic pole arrangement direction of the permanent magnet sheet (321), and the output end of the first metering sensor (330) is electrically connected to a counting module.

7. A sewage discharge measurement device according to claim 1, It is characterized in that The second metering sensor (431) is a grating counting sensor structure, the rotation counter (441) is a rotation counter structure, and the intermittent gear (421) is a crank gear structure.

8. A sewage discharge measurement device according to claim 1, It is characterized in that A waterproof compartment is provided at the bottom end of the metering component box (200), the main metering gear seat (430) and the metering gear rod (440) are rotatably mounted inside the waterproof compartment, and the outer side of the shaft sleeve rod (420) is rotatably sleeved with a shaft sealing cover fixed to the inner side of the waterproof compartment.

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