Calibrating device for weir trough open channel flowmeter

Abstract

The utility model belongs to the technical field of flowmeter verification, and particularly relates to a weir trough open channel flowmeter verification device which comprises a rack, a base, supporting foot stools arranged at the four corners of the bottom of the base, stand columns arranged at the four corners of the top of the base and a workbench arranged at the tops of the stand columns. The detection assembly comprises a support arranged on one side of the top of the workbench, a supporting plate arranged on the top of the support, a water storage tank arranged on the top of the supporting plate, a water outlet formed in the bottom of one side of the water storage tank, a water guide groove formed in the middle of the top of the workbench, and a weir trough open channel flowmeter body arranged at one end of the water guide groove, wherein one end of the water guide groove is located below the water outlet. The water circulation assembly comprises a water collecting tank arranged in the middle of the top of the base, a liquid return pipe arranged at one end of the weir trough open channel flowmeter body and a make-up pump arranged on one side of the workbench. The device is reasonable in structure, real flow verification can be conveniently carried out on the weir trough open channel flowmeter in the using process, and the metering precision of the weir trough open channel flowmeter can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flowmeter verification, in particular to a weir flume open-channel flowmeter verification device. Background Technique

[0002] The significance of sewage metering is to provide scientific, accurate and reliable data on the total amount of sewage discharged by enterprises from the perspectives of social and economic benefits, so as to meet the billing needs of environmental protection departments and effectively improve the work efficiency of energy conservation and emission reduction.

[0003] As a kind of sewage flow metering, the weir flume open-channel flowmeter is widely used in the monitoring and measurement field of industrial wastewater discharge. However, due to its special structure, it is not easy to carry out in-situ verification, resulting in difficulty in ensuring the measurement accuracy. At present, the verification of the weir flume open-channel flowmeter before installation mainly evaluates the uncertainty through the dimensional parameters of its manufacturing structure, which is likely to cause inaccurate measurement. And sewage metering involves the economic benefits of enterprises and society as well as the environment on which humans depend for survival. With the continuous improvement and transformation of economic development, the country has increased the intensity of energy conservation and emission reduction. Improving the accuracy of sewage flow metering and preventing excessive discharge are important indicators for emission reduction.

[0004] Based on the above problems, we propose a new type of weir flume open-channel flowmeter verification device. Content of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the specification of this application, to avoid obscuring the purpose of this part, the abstract and the title of the specification. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the problems existing in the prior art, the utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a weir flume open-channel flowmeter verification device, which is convenient for in-situ verification of the weir flume open-channel flowmeter during use and can improve the measurement accuracy of the weir flume open-channel flowmeter.

[0008] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0009] A weir flume open-channel flowmeter verification device, which includes:

[0010] A frame, including a base, support leg frames arranged at the four corners of the bottom of the base, columns arranged at the four corners of the top of the base, and a workbench arranged at the top of the columns;

[0011] The detection component includes a bracket arranged on one side of the top of the workbench, a pallet arranged on the top of the bracket, a water storage tank arranged on the top of the pallet, a drain port arranged at the bottom on one side of the water storage tank, a water guide groove arranged in the middle of the top of the workbench with one end located below the drain port, and a weir flume open channel flowmeter main body arranged at one end of the water guide groove;

[0012] The water circulation component includes a water collection tank arranged in the middle of the top of the base, a liquid return pipe arranged at one end of the weir flume open channel flowmeter main body, a make-up water pump arranged on one side of the workbench, a water suction pipe arranged at one end of the make-up water pump, a water delivery pipe arranged at the other end of the make-up water pump, a controller arranged on the front surface of the water storage tank, and a liquid level sensor arranged on the inner side wall of the water storage tank. The controller is electrically connected to the make-up water pump and the liquid level sensor. The other end of the liquid return pipe is connected to the water collection tank, the other end of the water suction pipe is connected to the water collection tank, and the other end of the water delivery pipe is connected to the water storage tank.

[0013] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: a fixed seat is arranged at the bottom of the support leg frame.

[0014] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: a one-way valve is arranged on the drain port.

[0015] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: a diversion plate is arranged at the bottom of the inner cavity of the water storage tank, and one end of the diversion plate close to the drain port is arranged to be inclined downward.

[0016] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: the water guide groove is arranged to be inclined, and a rectifying plate is arranged inside the water guide groove.

[0017] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: a filter screen is arranged inside the liquid return pipe.

[0018] As a preferred scheme of a weir flume open channel flowmeter calibration device according to the present utility model, wherein: an independent power supply is arranged at the bottom of the base.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. Through the cooperation of the make-up water pump, the suction pipe and the delivery pipe, it is convenient to replenish water into the water storage tank. Through the cooperation of the controller and the liquid level sensor, quantitative water replenishment can be achieved. Open the one-way valve on the drain port, and discharge a fixed amount of water from the water storage tank through the drain port. Through the water guide trough, the fixed amount of water passes through the weir flume open channel flowmeter main body, and the water volume detected by the weir flume open channel flowmeter main body is compared with the discharged water volume, which is convenient for the actual flow calibration of the weir flume open channel flowmeter and can improve the measurement accuracy of the weir flume open channel flowmeter.

[0021] 2. In addition, by providing a liquid return pipe at the other end of the weir flume open channel flowmeter main body, and connecting the liquid return pipe to the water collection tank, it is convenient for water recovery, and it is more energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is a schematic side view structural diagram of the present invention;

[0025] Figure 3 is a schematic top view structural diagram of the present invention.

[0026] In the figure: 100 frame, 110 base, 120 support leg frame, 130 column, 140 workbench, 200 detection component, 210 bracket, 220 support plate, 230 water storage tank, 240 drain port, 250 water guide trough, 260 weir flume open channel flowmeter main body, 300 water circulation component, 310 water collection tank, 320 liquid return pipe, 330 make-up water pump, 340 suction pipe, 350 delivery pipe, 360 controller, 370 liquid level sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the drawings.

[0028] Many specific details are set forth in the following description in order to provide a thorough understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0030] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] The present utility model provides the following technical solution: a weir flume open-channel flowmeter calibration device, which is convenient for performing in-situ calibration on the weir flume open-channel flowmeter during use and can improve the measurement accuracy of the weir flume open-channel flowmeter;

[0032] Figures 1 to 3 Shown is a schematic structural diagram of an embodiment of a weir flume open-channel flowmeter calibration device of the present utility model, and its main body part includes a frame 100, a detection component 200, and a water circulation component 300;

[0033] The frame 100 includes a base 110, support feet 120 installed at the four corners of the bottom of the base 110, columns 130 installed at the four corners of the top of the base 110, and a workbench 140 installed at the top of the columns 130. A fixed seat is installed at the bottom of the support feet 120. Further, the base 110 and the support feet 120 are used to carry the columns 130, the columns 130 are used to carry the workbench 140, and the workbench 140 is used to carry the detection component 200;

[0034] The detection component 200 includes a bracket 210 installed on one side of the top of the workbench 140, a tray 220 installed on the top of the bracket 210, a water storage tank 230 installed on the top of the tray 220, a drain port 240 installed at the bottom of one side of the water storage tank 230, a water guide trough 250 installed in the middle of the top of the workbench 140 and one end of which is located below the drain port 240, and a weir flume open-channel flowmeter main body 260 installed at one end of the water guide trough 250. A one-way valve is installed on the drain port 240. A flow guide plate is installed at the bottom of the inner cavity of the water storage tank 230, and the end of the flow guide plate close to the drain port 240 is inclined downward. The water guide trough 250 is inclined, and a rectifying plate is installed inside the water guide trough 250. Further, the water storage tank 230 is used to store a fixed amount of water, the drain port 240 is used to discharge a fixed amount of water, the water guide trough 250 is used to convey water through the weir flume open-channel flowmeter main body 260, and the weir flume open-channel flowmeter main body 260 is used to measure the amount of water passing through;

[0035] The water circulation component 300 includes a water collection tank 310 installed in the middle of the top of the base 110, a liquid return pipe 320 installed at one end of the weir flume open channel flowmeter main body 260, a makeup water pump 330 installed on one side of the workbench 140, a water suction pipe 340 installed at one end of the makeup water pump 330, a water delivery pipe 350 installed at the other end of the makeup water pump 330, a controller 360 installed on the front surface of the water storage tank 230, and a liquid level sensor 370 installed on the inner side wall of the water storage tank 230. The controller 360 is electrically connected to the makeup water pump 330 and the liquid level sensor 370. The other end of the liquid return pipe 320 is connected to the water collection tank 310, and a filter screen is installed in the inner cavity of the liquid return pipe 320. The other end of the water suction pipe 340 is connected to the water collection tank 310, and the other end of the water delivery pipe 350 is connected to the water storage tank 230. Further, the water collection tank is used to recover the water discharged by the weir flume open channel flowmeter main body 260, the liquid return pipe 320 is used for diversion, the makeup water pump 330, the water suction pipe 340 and the water delivery pipe 350 are used to supply water to the water storage tank 230, and the controller 360 and the liquid level sensor 370 are used for quantitative water supply.

[0036] Combined Figures 1 - 3 , a weir flume open channel flowmeter calibration device according to this embodiment operates as follows: Through the cooperation of the makeup water pump 330, the water suction pipe 340 and the water delivery pipe 350, it is convenient to supply water to the water storage tank 230. Through the cooperation of the controller 360 and the liquid level sensor 370, quantitative water supply can be achieved; Open the one-way valve on the drain port 240, and discharge a certain amount of water in the water storage tank 230 through the drain port 240. Through the water guide trough 250, the certain amount of water passes through the weir flume open channel flowmeter main body 260. The water volume detected by the weir flume open channel flowmeter main body 260 is compared with the discharged water volume, which is convenient for in-situ calibration of the weir flume open channel flowmeter and can improve the measurement accuracy of the weir flume open channel flowmeter; In addition, by providing a liquid return pipe 320 at the other end of the weir flume open channel flowmeter main body 260, and the liquid return pipe 321 is connected to the water collection tank 310, it is convenient for water recovery and is more energy-saving and environmentally friendly.

[0037] Although the present invention has been described above with reference to the embodiments, however, without departing from the scope of the present invention, various improvements can be made to it and components therein can be replaced with equivalents. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A calibration device for a weir flume open channel flowmeter, characterized in that, Comprising: A frame (100), including a base (110), support feet (120) provided at the four corners of the bottom of the base (110), columns (130) provided at the four corners of the top of the base (110), and a workbench (140) provided at the top of the columns (130); A detection assembly (200), including a bracket (210) provided on one side of the top of the workbench (140), a pallet (220) provided on the top of the bracket (210), a water storage tank (230) provided on the top of the pallet (220), a drain port (240) provided at the bottom of one side of the water storage tank (230), a water guide trough (250) provided in the middle of the top of the workbench (140) and with one end located below the drain port (240), and a weir flume open channel flowmeter body (260) provided at one end of the water guide trough (250); A water circulation assembly (300), including a water collection trough (310) provided in the middle of the top of the base (110), a return liquid pipe (320) provided at one end of the weir flume open channel flowmeter body (260), a make-up water pump (330) provided on one side of the workbench (140), a water suction pipe (340) provided at one end of the make-up water pump (330), a water delivery pipe (350) provided at the other end of the make-up water pump (330), a controller (360) provided on the front surface of the water storage tank (230), and a liquid level sensor (370) provided on the inner side wall of the water storage tank (230), the controller (360) is electrically connected to the make-up water pump (330) and the liquid level sensor (370), the other end of the return liquid pipe (320) is connected to the water collection trough (310), the other end of the water suction pipe (340) is connected to the water collection trough (310), and the other end of the water delivery pipe (350) is connected to the water storage tank (230).

2. The calibration device for a weir flume open channel flowmeter according to claim 1, wherein: A fixing seat is provided at the bottom of the support feet (120).

3. The weir flume open channel flowmeter calibration device according to claim 1, characterized in that: A one-way valve is provided on the drain port (240).

4. The calibration device for a weir flume open channel flowmeter according to claim 1, characterized in that: A flow guide plate is provided at the bottom of the inner cavity of the water storage tank (230), and one end of the flow guide plate close to the drain port (240) is inclined downward.

5. The calibration device for a weir flume open channel flowmeter according to claim 1, characterized in that: The water guide trough (250) is inclined, and a flow rectifying plate is provided inside the water guide trough (250).

6. The calibration device for a weir flume open channel flowmeter according to claim 1, characterized in that: A filter screen is provided in the inner cavity of the return liquid pipe (320).

7. The calibration device for a weir flume open channel flowmeter according to claim 1, characterized in that: An independent power supply is provided at the bottom of the base (110).

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