CN218381231U - Flow tester of flowmeter - Google Patents

Abstract

The utility model relates to a flow test machine of flowmeter, the test water tank passes through circulation tank, the delivery port that water pump and test water tank set up, delivery port and gap are realized forming the invariable test condition of water level in the test water tank, the invariable pressure that makes the delivery port have of water level, then under the condition of the unpowered drainage of delivery port, its delivery port has invariable velocity of flow, water passes through the solenoid valve through the invariable velocity of flow and finally flows to the graduated flask in waiting to incline the flowmeter, the volume of water output is directly perceived to demonstrate in the graduated flask, then can contrast with the data of the flowmeter feedback that awaits measuring, thereby calculate the error, the conversion that the deuterogamy weighing device can carry out more accurate to data, the validity to the flow data test has improved widely. And the whole flow tester structure is observed throughout, the structure is simple, the manufacturing cost is low, and the testing cost is reduced.

Description

Flow tester of flowmeter

Technical Field

The utility model relates to a flowmeter technical field especially relates to a flow test machine of flowmeter.

Background

At present, for the assembled flowmeter, a finished product flow test is required to be carried out so as to test the stability, durability and flow control accuracy of the flowmeter. Need accurate control flow field, the flowmeter need have the performance that can guarantee accurate flow control for a long time to being applied to coffee machine etc. very much, consequently need carry out the flow test to the flowmeter that the equipment finishes to guarantee the finished product quality, and according to the flowmeter after the predetermined design equipment, it must have flow error, also has the error in the flow data of flowmeter feedback, for example: the feedback flow value is 100ml, but only 98ml or 102ml, so the flow test is needed to be carried out on the flowmeter, flow error data is obtained, and then the data is corrected in a software adjustment mode. However, at present, the flow test of the flowmeter is not implemented for obtaining error data, so that a constant flow rate is not set, and the measurement result cannot be used for correcting errors. Therefore, it is necessary to design a flow rate tester with a simple structure and a constant flow rate condition.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, provide a flow test machine of flowmeter.

The embodiment of the utility model provides a flow test machine of flowmeter, it includes: the water pump comprises a weighing device, a measuring cup, a circulating water tank, a support, a test water tank, a control electric box, a water pump and an electromagnetic valve, wherein a water inlet of the water pump is communicated with the circulating water tank, a water outlet of the water pump is communicated with a water inlet of the test water tank, an overflow port of the test water tank is communicated with the circulating water tank, a water outlet of the test water tank is communicated with a water inlet of a flowmeter to be tested through the electromagnetic valve, a water outlet of the flowmeter to be tested is communicated with the measuring cup, the measuring cup is arranged on the weighing device, the control electric box is electrically connected with the electromagnetic valve and the water pump, and the test water tank is erected on the support higher than the circulating water tank, the electromagnetic valve, the flowmeter to be tested and the measuring cup; the water outlet of the test water tank is positioned on the bottom surface of the test water tank.

In some embodiments, the water inlet and the water overflow of the test water tank are located at the same horizontal plane and are disposed at the upper side of the test water tank.

In some embodiments, the flow meter testing device further comprises a base for loading the flow meter to be tested.

In some of these embodiments, the weighing apparatus is an electronic scale.

In some of these embodiments, the measuring cup is a transparent measuring cup.

Compared with the prior art, the embodiment of the utility model provides a flow test machine of flowmeter, test water tank passes through circulation water tank, the delivery port that water pump and test water tank set up, delivery port and gap are realized forming the invariable test condition of water level in test water tank, the invariable pressure that makes the delivery port have invariable pressure, then under the condition of the unpowered drainage of delivery port, its delivery port has invariable velocity of flow, water passes through the solenoid valve through invariable velocity of flow and finally flows to the graduated flask in waiting the side flowmeter, audio-visual demonstration water yield in the graduated flask, then can contrast with the data of the flowmeter feedback that awaits measuring, thereby calculate the error, the deuterogamy weighing device can carry out more accurate conversion to data, the validity to flow data test has improved widely. And the whole flow tester structure is observed throughout, the structure is simple, the manufacturing cost is low, and the testing cost is reduced.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of other features, objects, and advantages of the invention.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an exploded view of a flow rate tester of a flowmeter according to an embodiment of the present invention.

Fig. 2 is an assembly structure view of a flow rate tester of a flowmeter according to an embodiment of the present invention.

In the figure, 1, a support table; 2. a weighing device; 3. a measuring cup; 4. a circulating water tank; 5. a support; 6. testing the water tank; 7. controlling an electric box; 8. a water pump; 9. an electromagnetic valve; 10. a placement groove; 11. a cover; 12. a base; 13. and (6) a flowmeter to be measured.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described and illustrated with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Moreover, it will be appreciated that in the development of any such actual embodiment, as in any specific implementation, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting the number, but may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description may not be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The utility model relates to a "a plurality of" means more than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in the description of the invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-2, the embodiment of the present invention provides a flow tester of a flowmeter, which includes: brace table 1, weighing device 2, graduated flask 3, circulation tank 4, support 5, test water tank 6, control electronic box 7, water pump 8 and solenoid valve 9, support 5 that has three long foot erects on brace table 1, a standing groove 10 has at the top of support 5, this standing groove 10 is used for placing test water tank 6, test water tank 6 disposes a open-top lid 11, lid 11 can place the foreign matter and enter test water tank 6, avoid the interference to the test procedure. The weighing device 2 is an electronic scale, can visually represent the weight of discharged water, and can directly feed back the weight to the processing module of the control electronic box 7 for data recording, thereby facilitating subsequent operation. The measuring cup 3 is a transparent measuring cup, so that a scalar corresponding to the water level in the measuring cup 3 can be conveniently and visually checked. And a circulating water tank 4 for providing a basis for maintaining the water level of the test water tank 6 to be constant, wherein the water stored in the circulating water tank 4 is continuously supplied to the test water tank 6 by the water pump 8, and the test water tank 6 overflows water higher than the water level from the overflow port to flow back to the circulating water tank 4, and the water level of the test water tank 6 is maintained to be constant by circulating. The water inlet of the water pump 8 is communicated with the circulating water tank 4 through a water pipe, the water outlet of the water pump 8 is communicated with the water inlet of the test water tank 6 through a water pipe, the overflow port of the test water tank 6 is communicated with the circulating water tank 4 through a water pipe, the water outlet of the test water tank 6 is sequentially communicated with the electromagnetic valve 9 and the flowmeter 13 to be tested through water pipes, the water outlet of the flowmeter 13 to be tested is communicated with the measuring cup 3 through a water pipe, the measuring cup 3 is arranged on the weighing device 2, the control electric box 7 is electrically connected with the electromagnetic valve 9 and the water pump 8 to control the on-off of the electromagnetic valve 9 and the start-stop of the water pump 8, the test water tank 6 is higher than the circulating water tank 4, the electromagnetic valve 9, the flowmeter 13 to be tested and the measuring cup 3 and is erected on the support 5, and the test water tank 6 forms a flow potential that water flows to the high position for the circulating water tank 4, the electromagnetic valve 9, the flowmeter 13 to be tested and the measuring cup 3; the water outlet of the test water tank 6 is positioned on the bottom surface of the test water tank 6, and is the only water outlet of the test water tank 6, and the water outlet has constant flow speed on the basis that the test water tank 6 has constant water level. The water inlet and the overflow port of the test water tank 6 are positioned on the same horizontal plane and are arranged on the upper side of the test water tank 6. On the support table 1, there is also a base 12 carrying a flow meter 13 to be measured, and before measurement, the flow meter 13 to be measured is placed in the base 12 to define the position of the flow meter 13 to be measured.

The utility model discloses theory of operation of embodiment: the water in the circulating water tank 4 continuously flows into the test water tank 6 through the water pump 8, and the excess water higher than the preset water level returns to the circulating water tank 4 through the overflow port, so that a constant water level is formed in the test water tank 6, the constant water level determines that the water outlet on the bottom surface has constant pressure, then the water in the test water tank 6 flows out of the test water tank 6 from the water outlet in a state that the electromagnetic valve 9 is opened, flows through the flowmeter 13 to be tested and then enters the measuring cup 3 through the electromagnetic valve 9, the whole process from the water outlet to the measuring cup 3 ensures that the water flowing through the flowmeter flows at a constant flow speed, so that the accuracy of a flow test value is ensured, after the set flow is reached, the electromagnetic valve 9 is closed, the water amount in the measuring cup 3 is the actual water yield (the water in the water pipe between the flowmeter 13 to be tested and the measuring cup 3 is also poured into the measuring cup 3), so that the flow error between the actual water yield and the set flow can be obtained, the flow error obtained in different flow intervals is repeated, large basic data is formed, then the analysis is carried out, and the flow error between the flow rate obtained by the software is corrected by a flow correction scheme.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. A flow tester of a flow meter, comprising: the water-measuring device comprises a weighing device (2), a measuring cup (3), a circulating water tank (4), a support (5), a testing water tank (6), a control electric box (7), a water pump (8) and an electromagnetic valve (9), wherein a water inlet of the water pump (8) is communicated with the circulating water tank (4), a water outlet of the water pump (8) is communicated with a water inlet of the testing water tank (6), an overflow port of the testing water tank (6) is communicated with the circulating water tank (4), a water outlet of the testing water tank (6) is communicated with a water inlet of a flowmeter (13) to be measured through the electromagnetic valve (9), a water outlet of the flowmeter (13) to be measured is communicated with the measuring cup (3), the measuring cup (3) is arranged on the weighing device (2), the control electric box (7) is electrically connected with the electromagnetic valve (9) and the water pump (8), and the testing water tank (6) is higher than the circulating water tank (4), the electromagnetic valve (9), the flowmeter (13) to be measured and the measuring cup (3) and is erected on the support (5); and the water outlet of the test water tank (6) is positioned on the bottom surface of the test water tank (6).

2. The flow tester of a flowmeter according to claim 1, wherein the water inlet and the water overflow of the test water tank (6) are located at the same level and are disposed at an upper side of the test water tank (6).

3. The flow tester of a flowmeter as set forth in claim 1, further comprising a base (12) on which the flowmeter under test (13) is mounted.

4. The flow tester of a flowmeter according to claim 1, wherein the weighing device (2) is an electronic scale.

5. The flow tester of a flowmeter according to claim 1, wherein the measuring cup (3) is a transparent measuring cup.

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