Flowmeter with calibration function

Abstract

The utility model relates to a flowmeter with a calibration function, which belongs to the technical field of flowmeters, and comprises a flowmeter main body, two three-way valves, a calibration water tank, a water pump, a timer and a sealing plug, the two three-way valves are respectively communicated with two ends of the flowmeter main body, and the sealing plug can be in threaded connection with the three-way valves. The water pump and the timer are both installed on the top of the calibration water tank, a partition plate is fixedly installed on the calibration water tank, the calibration water tank is divided into a water storage cavity and a water collecting cavity through the partition plate, the water storage cavity fixedly communicates with a water pumping pipe, the water pumping pipe communicates with the water pump, the water pump fixedly communicates with a connecting pipe, and the water collecting cavity fixedly communicates with a water return pipe. The water storage cavity and the water collection cavity are provided with observation windows. According to the flow meter calibration device, the flow meter can be calibrated on the premise that the flow meter is not disassembled, and the calibration assembly is convenient to disassemble and assemble, so that the flow meter can be temporarily installed and moved for use when the flow meter needs to be calibrated, and the occupied space of the flow meter during installation and use is prevented from being increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter technical field, especially a flowmeter with calibration function. BACKGROUND

[0002] The mass flowmeter is a relatively accurate, fast, reliable, efficient, stable and flexible flow measuring instrument, which will be more widely applied in the fields of petroleum processing and chemical industry, and the accuracy of the flowmeter needs to be ensured when the mass flowmeter is used.

[0003] Through the rotation of the two knobs, the two clamping seats are moved towards each other to limit and clamp the pipeline connected to both ends of the calibration instrument, so as to avoid loosening or even falling off of the pipeline during use, thereby affecting the normal operation of the calibration operation. The two mounting seats are fixed by the threaded connection of the two fixing bolts and the two threaded holes, thereby limiting and fixing the calibration instrument. When the calibration instrument fails, the fixing bolts are loosened to separate them from the threaded holes, thereby facilitating the disassembly and maintenance of the calibration instrument.

[0004] The above technical solution has the following defects: such a mass flowmeter structure is convenient to disassemble and maintain, but in actual use, the mass flowmeter needs to be disassembled when calibrating, which is more troublesome. In order to calibrate the flowmeter loaded on the pipeline, a flowmeter with calibration function is proposed, which can calibrate the flowmeter without disassembling the flowmeter, and the calibration assembly is convenient to disassemble and assemble, so that it can be temporarily installed when calibrating the flowmeter, and moved for use, preventing the increase of the occupied volume when the flowmeter is installed and used.

[0005] Therefore, the present application improves and solves the above problems through careful research and application of theoretical principles, and finally proposes a technical solution that is reasonable in design and effectively improves the above defects.

[0006] The information disclosed in the background section of this document is intended only to enhance the understanding of the overall background of the present application, and should not be considered as acknowledging or implying in any form that this information constitutes prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0007] The utility model provides a kind of flowmeter with calibration function, solve the problem raised in the above background, can be calibrated to flowmeter without disassembling the flowmeter, and calibration assembly is convenient to disassemble and assemble, so that it can be temporarily installed when calibrating the flowmeter, and moved for use, preventing the increase of the occupied volume when the flowmeter is installed and used.

[0008] The utility model discloses a kind of flow meters with calibration function, including flow meter main body, three-way valve, calibration water tank, water pump, timer, sealing plug, the three-way valve is provided with two, two The three-way valve is respectively communicated at the both ends of flow meter main body, the sealing plug can be connected with three-way valve screw thread, the water pump and timer are all installed at the top of calibration water tank, calibration water tank is fixedly installed with partition, calibration water tank is separated with water storage cavity and water collection cavity by partition, the water storage cavity is fixedly communicated with water suction pipe, the water suction pipe is communicated with water pump, the water pump is fixedly communicated with connecting pipe, the water collection cavity is fixedly communicated with backwater pipe, the water storage cavity and water collection cavity are all provided with observation window, the outer wall of observation window is provided with scale.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the water storage cavity is fixedly communicated with a water supplement pipe, the water collection cavity is fixedly communicated with a drain pipe, the water supplement pipe and the drain pipe are both screw-connected with sealing caps, and the sealing caps can be unscrewed to supplement water in the water storage cavity or drain water in the water collection cavity through the drain pipe.

[0011] Further, the volume of the water storage cavity is consistent with that of the water collection cavity, water in the water storage cavity is introduced into the water collection cavity, and the staff can observe the water storage amount of the water storage cavity and the water collection amount of the water collection cavity through the scale of the observation window.

[0012] Further, the flow meter main body is communicated with external pipelines through the three-way valves, and the three-way valves can be adjusted to adjust the flow meter main body to calibration state and use state.

[0013] Further, the outer wall of the water pump is provided with a protective cover, the water pump is installed on the outer wall of the calibration water tank through the protective cover, and the protective cover can protect the water pump.

[0014] Further, the bottom of the calibration water tank is provided with moving wheels, so that the calibration water tank can be moved conveniently.

[0015] Further, the connecting pipe can be communicated with the three-way valves through bolts.

[0016] Further, the backwater pipe can be communicated with the three-way valves through bolts.

[0017] The utility model provides a kind of flow meter with calibration function, with the following advantages:

[0018] 1, when needing to calibrate flow meter main body, adjust two three-way valves to isolate three-way valve from external pipeline and open bottom pipeline, connect pipe and backwater pipe are communicated with two three-way valves respectively, such communication structure does not need to remove flow meter from pipeline during calibration, so that calibration work is more convenient.

[0019] 2、Synchronous start water pump and timer, water pump can be liquid in the storage water cavity through the water pipe, connecting pipe, one end of the three-way valve, flow meter main body, the other end of the three-way valve and backwater pipe backflow to the water cavity, after a period of time after delivery synchronous closing water pump and timer, the observation window of storage water cavity and water cavity is provided with a scale, the scale of the observation window can measure the water storage cavity and the water storage capacity of the water storage cavity, the timer can measure the flow time, so that the flow can be obtained by the volume method through the fluid volume flowing into the constant volume container in the measurement time, and the flow meter main body can be calibrated according to the actual flow;

[0020] 3、Thus, the flow meter with calibration function can calibrate the flow meter without removing the flow meter, and the calibration assembly is convenient to disassemble and assemble, so that it can be temporarily installed and moved when the flow meter needs to be calibrated, thereby preventing the increase of the floor area when the flow meter is installed and used.

[0021] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is a detailed description of the preferred embodiments of the present application with the help of the accompanying drawings. The specific implementation of the present application is given in detail by the following examples and their accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present application, and form part of the present application. The schematic embodiments of the present application and their description are used to explain the present application, and do not constitute undue limitation on the present application. In the drawings:

[0023] Figure 1 A structure diagram of the calibration state of the flow meter with calibration function provided by an embodiment of the present application is shown in the figure;

[0024] Figure 2 A front view of the calibration state of the flow meter with calibration function provided by an embodiment of the present application is shown in the figure;

[0025] Figure 3 A front view of the flow meter main body in use state of the flow meter with calibration function provided by an embodiment of the present application is shown in the figure;

[0026] Figure 4 A split diagram of the sealing plug and the three-way valve in the flow meter with calibration function provided by an embodiment of the present application is shown in the figure.

[0027] In the drawings, the component list represented by each number is as follows:

[0028] 1. Flow meter body; 2. Three-way valve; 3. Calibration tank; 4. Water pump; 5. Timer; 6. Sealing plug; 7. Divider plate; 8. Water storage chamber; 9. Water collection chamber; 10. Water supply pipe; 11. Drain pipe; 12. Sealing cap; 13. Pumping pipe; 14. Connecting pipe; 15. Return pipe; 16. Observation window. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0030] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figures 1-4 As shown, a flow meter with calibration function includes a flow meter body 1, a three-way valve 2, a calibration water tank 3, a water pump 4, a timer 5, and a sealing plug 6. Two three-way valves 2 are provided, and the two three-way valves 2 are respectively connected to the two ends of the flow meter body 1. The sealing plug 6 can be threadedly connected to the three-way valves 2. The water pump 4 and the timer 5 are both installed on the top of the calibration water tank 3. The calibration water tank 3 is fixedly installed with a partition plate 7. The calibration water tank 3 is divided into a water storage chamber 8 and a water collection chamber 9 by the partition plate 7. The water storage chamber 8 is fixedly connected to a water pump 13, which is connected to the water pump 4. The water pump 4 is fixedly connected to a connecting pipe 14. The water collection chamber 9 is fixedly connected to a return water pipe 15. Both the water storage chamber 8 and the water collection chamber 9 are provided with observation windows 16, and the outer wall of the observation window 16 is provided with a scale.

[0033] Preferably, the water storage cavity 8 is fixedly connected with a water supplement pipe 10, the water collecting cavity 9 is fixedly connected with a water discharge pipe 11, the water supplement pipe 10 and the water discharge pipe 11 are both screw-connected with a sealing cap 12, and the water storage cavity 8 can be supplemented with water or the water in the water collecting cavity 9 can be discharged through the water discharge pipe 11 by unscrewing the sealing cap 12.

[0034] Preferably, the water storage cavity 8 and the water collecting cavity 9 have the same volume, the water in the water storage cavity 8 is guided into the water collecting cavity 9, and the water storage capacity of the water storage cavity 8 and the water collecting capacity of the water collecting cavity 9 can be observed through the scale of the observation window 16.

[0035] Preferably, the flow meter main body 1 is connected with external pipelines through the three-way valves 2, and the three-way valves 2 can be adjusted to adjust the flow meter main body 1 to be in a calibration state or a use state.

[0036] Preferably, the water pump 4 is provided with a protective cover, and the water pump 4 is installed on the outer wall of the calibration water tank 3 through the protective cover, so that the water pump 4 can be protected.

[0037] Preferably, the calibration water tank 3 is provided with moving wheels at the bottom, so that the calibration water tank 3 can be moved conveniently.

[0038] Preferably, the connecting pipe 14 can be connected with the three-way valves 2 through bolts.

[0039] Preferably, the backwater pipe 15 can be connected with the three-way valves 2 through bolts.

[0040] The specific working principle and use method of the utility model are as follows: the two ends of the flow meter main body 1 are connected with external pipelines through the three-way valves 2, so that the flow meter main body 1 can measure the conveying fluid, when the flow meter main body 1 needs to be calibrated, the three-way valves 2 are adjusted to isolate the three-way valves 2 from the external pipelines and open the bottom pipelines, the connecting pipe 14 and the backwater pipe 15 are connected with the three-way valves 2, the water pump 4 and the timer 5 are started synchronously, the water pump 4 can guide the liquid in the water storage cavity 8 to flow back to the water collecting cavity 9 through the water pump 13, the connecting pipe 14, the one-end three-way valve 2, the flow meter main body 1, the other-end three-way valve 2 and the backwater pipe 15, the water pump 4 and the timer 5 are closed synchronously after conveying for a period of time, the observation windows 16 of the water storage cavity 8 and the water collecting cavity 9 are provided with scales, the scales of the observation windows 16 can measure the water outflow of the water storage cavity 8 and the water collecting capacity of the water collecting cavity 9, and the timer 5 can measure the flow time, so that the flow can be obtained through the volume method according to the fluid volume flowing into the constant-volume container in the measurement time, and the flow meter main body 1 can be calibrated according to the actual flow.

[0041] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A flow meter with calibration function, comprising a flow meter main body (1), a three-way valve (2), a calibration water tank (3), a water pump (4), a timer (5), a sealing plug (6), characterized in that: Two three-way valves (2) are arranged, and the two three-way valves (2) are respectively communicated at two ends of the flowmeter body (1), the sealing plug (6) can be screwed with the three-way valve (2), the water pump (4) and the timer (5) are both installed on the top of the calibration water tank (3), the calibration water tank (3) is fixedly installed with a partition plate (7), the calibration water tank (3) is divided into a water storage cavity (8) and a water collection cavity (9) by the partition plate (7), the water storage cavity (8) is fixedly communicated with a water pumping pipe (13), the water pumping pipe (13) is communicated with the water pump (4), the water pump (4) is fixedly communicated with a connecting pipe (14), the water collection cavity (9) is fixedly communicated with a water return pipe (15), the water storage cavity (8) and the water collection cavity (9) are both provided with an observation window (16), and the outer wall of the observation window (16) is provided with a scale.

2. The flow meter with a calibration function according to claim 1, wherein, The water storage cavity (8) is fixedly communicated with a water supplement pipe (10), and the water collection cavity (9) is fixedly communicated with a drain pipe (11); the water supplement pipe (10) and the drain pipe (11) are both screwed with sealing caps (12).

3. The flow meter with calibration function according to claim 1, wherein, The volume of the water storage cavity (8) and the water collection cavity (9) is consistent.

4. The flow meter with a calibration function according to claim 1, wherein, The flowmeter body (1) is communicated with external pipelines through the three-way valve (2).

5. The flow meter with a calibration function according to claim 1, wherein, The outer wall of the water pump (4) is provided with a protective cover, and the water pump (4) is installed on the outer wall of the calibration water tank (3) through the protective cover.

6. The flow meter with calibration function according to claim 1, wherein, The bottom of the calibration water tank (3) is installed with moving wheels.

7. The flow meter with calibration function according to claim 1, wherein, The connecting pipe (14) can be communicated with the three-way valve (2) through bolts.

8. The flow meter with calibration function according to claim 1, wherein, The water return pipe (15) can be communicated with the three-way valve (2) through bolts.

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