阅读说明：本技术 一种流量计量装置及使用方法 (Flow metering device and use method ) 是由 周翠梅 高鸿毅 陈金法 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种流量计量装置,涉及流量计技术领域,包括：本体内部呈中空,本体的相对两侧呈开口设置；浮子组件设置在本体的内部,浮子组件与本体呈同一轴心；焊接组件位于本体的一侧,焊接组件与本体固定连接；过滤网位于本体的内部,过滤网与本体的内壁固定连接；浮子引导设置在本体的内部,浮子引导与本体呈同一圆心；浮子挡件位于本体的内部,浮子挡件与本体呈同一圆心,浮子组件与浮子组件之间设置有间距。本发明用于解决现有技术中流量计结构太过复杂,耦合部分经常脱落,浮子容易吸壁,导致测量精度下降的问题。(The invention discloses a flow metering device, which relates to the technical field of flowmeters and comprises: the interior of the body is hollow, and two opposite sides of the body are provided with openings; the floater component is arranged in the body and has the same axis with the body; the welding assembly is positioned on one side of the body and fixedly connected with the body; the filter screen is positioned in the body and fixedly connected with the inner wall of the body; the floater guide is arranged in the body and has the same circle center with the body; the floater stopper is positioned in the body, the floater stopper and the body form the same circle center, and a distance is arranged between the floater assembly and the floater assembly. The invention is used for solving the problems that the structure of the flowmeter in the prior art is too complex, the coupling part is frequently dropped off, and the floater is easy to suck the wall, so that the measurement precision is reduced.)

1. A flow metering device having an air inlet and an air outlet, wherein the flow metering device comprises:

the body is hollow, and two opposite sides of the body are provided with openings;

the floater component is arranged inside the body and has the same axis with the body;

the welding assembly is positioned on one side of the body and fixedly connected with the body;

the filter screen is positioned inside the body and fixedly connected with the inner wall of the body;

the floater guide is arranged inside the body and has the same circle center as the body;

the floater stopper is positioned inside the body, the floater stopper and the body form the same circle center, and a space is arranged between the floater assembly and the floater assembly.

2. The flow rate measuring device according to claim 1, wherein the body is a circular tube, the float guide is a circular column, the inside of the float guide is hollow, the outer periphery of the float guide is attached to the inner wall surface of the body, and a space is provided between the float guide and the filter screen.

3. A flow metering device according to claim 2 wherein the right side of the float guide is provided with a tapered tube which is hollow internally and which is hollow internally to receive the float assembly, one end of the tapered tube being in mating connection with one end of the float guide.

4. The flow metering device according to claim 3, wherein the float stopper is disposed on the right side of the tapered tube, one end of the float stopper is attached to one end of the float stopper, the circular column on the left end face of the float stopper is inserted into the inner wall of the tapered tube for matching connection, and the interior of the float stopper is hollow.

5. A flow metering device according to claim 4 wherein the float assembly slides side to side within the tapered tube in the direction of extension of the tapered tube.

6. The flow metering device of claim 1 wherein there are two welding assemblies, the two welding assemblies being located on opposite sides of the body, the two welding assemblies being symmetrically disposed.

7. A flow metering device according to claim 1, wherein the flow metering device further comprises:

the indicating part is arranged on the outer side of the body, the indicating part is fixedly connected with the body, and the indicating part is used for displaying measurement data.

8. The flow rate measurement device according to claim 7, wherein the indication portion includes:

the inner part of the basal body is arranged in a hollow manner, the basal body is arranged on the outer side of the body, and the basal body is fixedly connected with the body;

the box cover is arranged above the base body and fixedly connected with the base body;

the end cover is arranged on the left side of the base body and fixedly connected with the base body.

9. The flow metering device according to claim 8, wherein the box cover is fixedly connected with the base body through a gasket, a window glass is arranged at the joint of the box cover and the base body, and the window glass is arranged in a transparent mode;

the end cover is fixedly connected with the base body through a sealing element, a terminal block is arranged on the right side of the end cover and positioned in the base body, and the terminal block is fixedly connected with the base body;

a support column is arranged below the window glass, the support column is fixedly connected with the inside of the base body, a scale plate is arranged on the upper surface of the support column, the scale plate is fixedly connected with the support, a pointer is arranged above the scale plate, and a shaft receiving component is arranged inside the base body;

the axle receive the subassembly with base member fixed connection, the axle receives the subassembly to be located the below of scale plate, the axle receives the inside of subassembly to be provided with the pointer seat, the pointer seat with the axle receives subassembly fixed connection, the pointer seat with pointer fixed connection, the inside of base member still is provided with the fastener, the fastener is located the below of scale plate, the below of fastener is provided with the mounting panel, the mounting panel with leave the interval between the fastener, the mounting panel with the fastener passes through the erection column and connects, the erection column passes through the nut will the mounting panel with the fastener is connected.

10. The flow metering device according to claim 9, wherein a glass pressing sheet is arranged at the joint of the box cover and the window glass, and a glass locking sheet is arranged below the window glass and used for fixing the window glass;

the scale plate is fixedly connected with the support column through a fixing screw;

the outer side of the body is provided with an installation pillar, and the installation pillar is fixedly connected with the base body.

Technical Field

The invention relates to the technical field of flowmeters, in particular to a flow metering device and a using method thereof.

Background

The rotameter measures the fluid flow according to the throttling principle, but it changes the flow area of the fluid to keep the differential pressure above and below the rotor constant, so it is also called variable flow area constant differential pressure flowmeter, also called float flowmeter, in a vertical taper pipe expanding from bottom to top, the gravity of the float with circular cross section is born by the liquid power, the float can rise and fall freely in the taper pipe, move up and down under the action of flow speed and buoyancy, and after balancing with the float weight, it is transmitted to the dial by magnetic coupling to indicate the flow.

However, as shown in fig. 6, the conventional rotameter generally includes: indicator subassembly, coupling balance part, layer board, protective cover, sealing washer, gasket, mounting bracket, pillar, body subassembly, cylinder screw, spring etc. constitute, the constitutional structure is too complicated, and the coupling part often drops, and the float is at the during operation card often simultaneously, because the float rebound, the magnetism of float can receive partial annular magnet bottom coupling with the axle and cause the float to inhale the condition of wall easily, and the coupling failure leads to the motionless precision of pointer to descend.

Disclosure of Invention

The invention aims to provide a flow metering device which is used for solving the problems that in the prior art, the structure of a flow meter is too complex, a coupling part often falls off, and a floater is easy to suck a wall, so that the measurement precision is reduced.

In order to achieve the purpose, the invention adopts the following technical scheme: a flow metering device having an air inlet and an air outlet, wherein the flow metering device comprises: the body is hollow, and two opposite sides of the body are provided with openings; the floater component is arranged inside the body and has the same axis with the body; the welding assembly is positioned on one side of the body and fixedly connected with the body; the filter screen is positioned inside the body and fixedly connected with the inner wall of the body; the floater guide is arranged inside the body and has the same circle center as the body; the floater stopper is positioned inside the body, the floater stopper and the body form the same circle center, and a space is arranged between the floater assembly and the floater assembly.

In the technical scheme, the floater component is pushed to move up and down through the fluid medium, so that the measurement accuracy of the fluid medium is improved under the condition that the floater component is not clamped with the conical pipe in the up-and-down moving process of the floater component, and meanwhile, compared with the existing device, the device is simpler in structure and convenient to process when high-accuracy measurement data are kept through the structure.

Further, in the embodiment of the invention, the body is arranged in a round pipe, the float guide is arranged in a round column, the interior of the float guide is hollow, the periphery of the float guide is attached to the inner wall surface of the body, and a gap is arranged between the float guide and the filter screen;

further, in the embodiment of the invention, the right side of the float guide is provided with a conical tube, the interior of the conical tube is hollow and used for accommodating the float assembly, and one end of the conical tube is in fit connection with one end of the float guide.

Furthermore, in the embodiment of the present invention, the float stopper is disposed on the right side of the tapered tube, one end of the float stopper is attached to one end of the float stopper, the circular column on the left end face of the float stopper is inserted into the inner wall of the tapered tube for matching connection, and the interior of the float stopper is hollow.

Further, in the embodiment of the present invention, the float assembly slides left and right inside the tapered tube in the extending direction of the tapered tube.

Furthermore, in the embodiment of the present invention, two welding assemblies are disposed, the two welding assemblies are respectively disposed on two opposite sides of the body, and the two welding assemblies are symmetrically disposed.

Further, in an embodiment of the present invention, the flow rate metering device further includes: the indicating part is arranged on the outer side of the body, fixedly connected with the body and used for displaying measurement data.

Further, in an embodiment of the present invention, the indicating portion includes: the inner part of the basal body is arranged in a hollow way, the basal body is arranged on the outer side of the basal body, and the basal body is fixedly connected with the basal body; the box cover is arranged above the base body and fixedly connected with the base body; the end cover is arranged on the left side of the base body and fixedly connected with the base body.

Further, in the embodiment of the invention, the box cover and the base body are fixedly connected through a gasket, and the window glass is arranged at the joint of the box cover and the base body and is transparent; the end cover is fixedly connected with the base body through a sealing element, a terminal block is arranged on the right side of the end cover and positioned in the base body, and the terminal block is fixedly connected with the base body; a support column is arranged below the window glass, the support column is fixedly connected with the inside of the base body, a scale plate is arranged on the upper surface of the support column, the scale plate is fixedly connected with the support, a pointer is arranged above the scale plate, and a bearing component is arranged inside the base body; this axle receives subassembly and this base member fixed connection, this axle receives the below that the subassembly is located this scale plate, this axle receives the inside of subassembly to be provided with the pointer seat, this pointer seat receives subassembly fixed connection with this axle, this pointer seat and this pointer fixed connection, the inside of this base member still is provided with the fastener, this fastener is located the below of this scale plate, the below of this fastener is provided with the mounting panel, leave the interval between this mounting panel and this fastener, this mounting panel passes through erection column with this fastener and is connected, this erection column passes through the nut and is connected this mounting panel and this fastener.

Further, in the embodiment of the invention, a glass pressing sheet is arranged at the joint of the box cover and the window glass, and a glass locking sheet is arranged below the window glass and used for fixing the window glass; the scale plate is fixedly connected with the support column through a fixing screw; the outer side of the body is provided with an installation pillar which is fixedly connected with the base body.

The embodiment of the invention also discloses a using method of the flow metering device, which comprises the following steps:

the external water pipe is connected, the surface of the welding assembly is connected with the external water pipe, liquid flows into the interior of the floater guide from the water inlet, and the floater assembly is driven to slide up and down along the interior of the conical pipe;

after the float assembly is displaced, a pointer of the indicating part rotates by the shaft receiving assembly, and the pointer rotates on the surface of the scale plate to indicate data and acquire metering data.

Further, in the embodiment of the present invention, the indication data is obtained based on the movement ratio of the float assembly.

The invention has the beneficial effects that:

promote float subassembly through fluid medium and reciprocate, at float subassembly's the in-process that reciprocates for the float subassembly can not take place the condition that blocks with the conical duct and improve fluid medium measurement accuracy, simultaneously when keeping the measured data of higher accuracy through foretell structure, it is more succinct to compare in current device structure, processing is convenient, the complicated processing difficulty of current device structure, and the coupling part often drops, long lead to blocking during float operation, coupling failure leads to the pointer motionless not reaching 3% precision, and current device also is difficult to repair because complicated assembly structure leads to the use unstability easily after the problem appears.

Drawings

FIG. 1 is a partial cross-sectional view of the interior of a flow metering device in accordance with an embodiment of the present invention.

Fig. 2 is a left side view of a flow metering device in an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the interior of a flow metering device in accordance with an embodiment of the present invention.

FIG. 4 is a schematic view of a float assembly of a flow metering device according to an embodiment of the present invention.

Fig. 5 is a sectional view of an indicating portion of a flow rate measuring device according to an embodiment of the present invention.

Fig. 6 is a schematic view of a prior art metering device.

In the attached drawings

1. Welding assembly 2, retainer ring 3 and filter screen

4. Pressing sleeve 5, float guide 6 and float assembly

7. Tapered tube 8, float stopper 9, receiving pillar

10. Indicator 101, case cover 102, and gasket

103. Window glass 104, pointer base 105, and fixing screw

106. Glass pressing sheet 107, glass locking plate 108 and scale plate

109. Base 1010, sealing member 1011, end cap

1012. Terminal block 1013, mounting plate 1014, card

1015. Mounting support 1016, nut 1017, pointer

1018. Support column 1019, axle receive subassembly

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known flow calculation methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.