阅读说明：本技术 摩擦电式远传型浮子流量计 (Triboelectric remote transmission float flowmeter ) 是由 程廷海 周建文 王宇琦 殷梦飞 卢晓晖 徐毓鸿 张川川 王铮 于 2019-09-20 设计创作，主要内容包括：本发明提供一种摩擦电式远传型浮子流量计,以解决当前浮子流量计存在的机械结构复杂、机械磨损、机械滞后和精度差等技术问题。本发明包括底座、封装壳体、螺栓组件I、锥形管组件、端盖、螺栓组件II、固定螺钉I、传感组件、浮子组件和固定螺钉II。通过内外磁钢耦合原理将锥形管内浮子的直线位移转化为外部外磁环组件的直线位移,并通过统计传感组件输出电压脉冲信号的数量检测流量的大小。本发明所提出的摩擦电式远传型浮子流量计可通过传感组件产生的电压信号特征进行判别流量的大小和方向,具有结构简单、精度高、可实现信号远传等优点。(The invention provides a triboelectric remote transmission type float flowmeter, which aims to solve the technical problems of complex mechanical structure, mechanical abrasion, mechanical hysteresis, poor precision and the like of the conventional float flowmeter. The invention comprises a base, a packaging shell, a bolt component I, a conical tube component, an end cover, a bolt component II, a fixing screw I, a sensing component, a floater component and a fixing screw II. The linear displacement of the floater in the conical tube is converted into the linear displacement of the external outer magnetic ring assembly by the coupling principle of the inner magnetic steel and the outer magnetic steel, and the flow is detected by counting the number of voltage pulse signals output by the sensing assembly. The triboelectric remote transmission type float flowmeter provided by the invention can judge the size and direction of the flow through the voltage signal characteristics generated by the sensing assembly, and has the advantages of simple structure, high precision, signal remote transmission and the like.)

1. a triboelectric remote transmission float flowmeter is characterized in that: the triboelectric remote transmission type float flowmeter comprises a base (1), a packaging shell (2), a bolt component I (3), a conical pipe component (4), an end cover (5), a bolt component II (6), a fixing screw I (7), a sensing component (8), a float component (9) and a fixing screw II (10); the conical pipe assembly (4) is arranged on the base (1) through a fixing screw II (10); the sensing assembly (8) is arranged on the conical pipe assembly (4) through a fixing screw I (7); the floater assembly (9) is arranged inside the conical pipe assembly (4); the end cover (5) is arranged on the conical pipe component (4) through a bolt component II (6); the packaging shell (2) is installed on the conical pipe assembly (4) through a bolt assembly I (3).

2. A triboelectric remote-type float flowmeter according to claim 1, characterized in that: the base (1) is provided with a connecting hole (1-1), a through hole I (1-2) and an air inlet I (1-3); the packaging shell (2) comprises a through hole II (2-1) and a packaging shell mounting hole (2-2); the base (1) is arranged on the conical pipe component (4) through a through hole I (1-2); the packaging shell (2) is installed on the conical pipe assembly (4) through the through hole II (2-1) and is connected with the bolt assembly I (3) through the packaging shell installation hole (2-2) in a matched mode.

3. a triboelectric remote-type float flowmeter according to claim 1, characterized in that: the conical tube assembly (4) comprises a conical tube (4-1) and an outer magnetic ring assembly (4-2); the conical pipe (4-1) is provided with a threaded hole I (4-1-1), a T-shaped sliding groove (4-1-2), a conical pipe mounting hole I (4-1-3), a connecting hole II (4-1-4), an air outlet (4-1-5), a conical cavity (4-1-6), a limiting support seat (4-1-7) and a conical pipe mounting hole II (4-1-8); the outer magnetic ring assembly (4-2) comprises an outer magnetic ring (4-2-1) and a friction material I (4-2-2); the external magnetic ring (4-2-1) comprises a magnetic ring (4-2-1-1), a T-shaped sliding block (4-2-1-2) and a pasting board I (4-2-1-3).

4. a triboelectric remote-type float flowmeter according to claim 3, characterized in that: the outer magnetic ring assembly (4-2) is arranged on the conical tube (4-1) through the matching of the T-shaped sliding groove (4-1-2) and the T-shaped sliding block (4-2-2); the friction material I (4-2-2) is stuck on the flitch I (4-2-1-3) on the outer magnetic ring (4-2-1) through gluing; the end cover (5) is provided with an end cover mounting hole (5-1) and a limiting hole (5-2); the end cover (5) is installed on the conical pipe assembly (4) through an end cover installation hole (5-1), and the floater assembly (8) is limited through a limiting hole (5-2).

5. the triboelectric remote transmission type float flowmeter as claimed in claim 3, wherein the friction material I (4-2-2) comprises a friction unit I (4-2-2-1) and a friction unit II (4-2-2-2), the friction unit I (4-2-2-1) and the friction unit II (4-2-2-2) both comprise a plurality of friction unit monomers which are arranged in parallel at equal intervals, a gap with a distance d is reserved between the friction unit I (4-2-2-1) and the friction unit II (4-2-2-2), the value of d ranges from 1 mm ~ 8mm, the friction unit I (4-2-2-1) and the friction unit II (4-2-2-2) have a dislocation distance e, and the value of e ranges from 1 mm ~ 10 mm.

6. a triboelectric remote-type float flowmeter according to claim 1, characterized in that: the sensing assembly (8) comprises an electrode mounting plate (8-1) and a friction material II (8-2); the electrode mounting plate (8-1) is provided with a sensing assembly mounting hole (8-1-1) and a pasting plate II (8-1-2); the friction material II (8-2) comprises an electrode I (8-2-1), an electrode II (8-2-2), an electrode III (8-2-3) and an electrode IV (8-2-4); the friction material II (8-2) is stuck on the pasting plate II (8-1-2) on the electrode mounting plate (8-1) through gluing; the sensing assembly (8) is arranged on the conical pipe (4-1) through a sensing assembly mounting hole (8-1-1); the floater component (9) comprises a floater (9-1) and a limit shaft (9-2); the floater (9-1) is provided with a through hole IV; the floater (9-1) is arranged on the limiting shaft (9-2) through a through hole IV; the floater component (9) is arranged on a limiting support seat (4-1-7) in the conical tube (4-1) through a limiting shaft (9-2).

7. A triboelectric remote-type float flowmeter according to claim 3 or claim 6, wherein: the material of the conical pipe (4-1) can be metal, glass or plastic; the friction material I (4-2-2) can be a material with strong electronegativity, such as PTFE (polytetrafluoroethylene), PDMS (polydimethylsiloxane), PVC (polyvinyl chloride), FEP (fluorinated ethylene propylene copolymer), Kapton (polyimide film material) and the like; the friction material II (8-2) is an electropositive metal material, and can be copper, aluminum or silver.

Technical Field

The invention designs a triboelectric remote transmission type float flowmeter, and belongs to the field of flow measurement.

Background

Flow monitoring is important in automatic control, medical health, energy measurement, flow safety and early warning of pipeline leakage. Float flow meters are widely used in the field of flow measurement due to their simple measurement principle and relatively sophisticated technology. However, most of the traditional float flow sensors are purely mechanical, and the problems of complex mechanical structure, mechanical abrasion, mechanical hysteresis, poor precision and the like exist in the way that the electromagnetic induction coupling and the mechanical link mechanism drive the pointer or the remote transmission mechanism to remotely output.

Therefore, it is very urgent to explore a new flow detection method based on the flow measurement principle and design a novel float flowmeter which has simple structure and high precision and can realize signal remote transmission.

Disclosure of Invention

The invention discloses a triboelectric remote transmission type float flowmeter, which aims to solve the technical problems of complex mechanical structure, mechanical abrasion, mechanical hysteresis, poor precision and the like of the conventional float flowmeter.

The technical scheme adopted by the invention is as follows:

The sensor comprises a base, a packaging shell, a bolt component I, a conical tube component, an end cover, a bolt component II, a fixing screw I, a sensing component, a floater component and a fixing screw II; the conical pipe assembly is arranged on the base through a fixing screw II; the sensing assembly is arranged on the conical tube assembly through a fixing screw I; the floater assembly is arranged inside the conical pipe assembly; the end cover is arranged on the conical pipe assembly through a bolt assembly II; the packaging shell is installed on the taper pipe assembly through a bolt assembly I.

The base is provided with a connecting hole, a through hole I and an air inlet I; the packaging shell comprises a through hole II and a packaging shell mounting hole; the base is arranged on the conical pipe assembly through the through hole I; the packaging shell is installed on the taper pipe assembly through the through hole II and is connected with the bolt assembly I through the packaging shell installation hole in a matched mode.

The cone tube assembly comprises a cone tube and an outer magnetic ring assembly; the tapered tube is provided with a I, T-shaped sliding groove, a tapered tube mounting hole I, a connecting hole II, an air outlet, a tapered cavity, a limiting support seat and a tapered tube mounting hole II; the outer magnetic ring assembly comprises an outer magnetic ring and a friction material I; the outer magnetic ring comprises a magnetic ring, a T-shaped sliding block and a pasting plate I.

The outer magnetic ring assembly is arranged on the conical tube through the matching of the T-shaped sliding groove and the T-shaped sliding block; the friction material I is adhered to the flitch I on the outer magnetic ring through gluing; the end cover is provided with an end cover mounting hole and a limiting hole; the end cover is installed on the conical pipe assembly through the end cover installation hole and limits the floating assembly through the limiting hole.

the friction material I comprises a friction unit I and a friction unit II, the friction unit I and the friction unit II respectively comprise a plurality of friction unit monomers which are arranged in parallel at equal intervals, a gap with a distance d is reserved between the friction unit I and the friction unit II, the value range of d is 1 mm ~ 8mm, the friction unit I and the friction unit II have a dislocation distance with a distance e, and the value range of e is 1 mm ~ 10 mm.

The sensing assembly comprises an electrode mounting plate and a friction material II; the electrode mounting plate is provided with a sensing assembly mounting hole and a pasting plate II; the friction material II comprises an electrode I, an electrode II, an electrode III and an electrode IV; the friction material II is adhered to an adhesive plate II on the electrode mounting plate through gluing; the sensing assembly is arranged on the conical tube through a sensing assembly mounting hole; the floater component comprises a floater and a limiting shaft; the floater is provided with a through hole IV; the floater is arranged on the limiting shaft through a through hole IV; the float component is arranged on a limiting supporting seat in the conical tube through a limiting shaft.

the material of the conical tube can be metal, glass or plastic; the friction material I can be a material with strong electronegativity, such as PTFE polytetrafluoroethylene, PDMS polydimethylsiloxane, PVC polyvinyl chloride, FEP fluorinated ethylene propylene copolymer, Kapton polyimide film material and the like; the friction material II is an electropositive metal material and can be copper, aluminum, silver and the like.

The invention has the beneficial effects that: the invention provides a triboelectric remote transmission type float flowmeter, which converts the change of linear displacement of a magnetic float in a conical tube into the change of the pulse number of an output voltage signal of an external sensing assembly through the coupling of internal and external magnetic steels. The sensing assembly is composed of two lines of same interdigital electrodes, and the flow can be accurately detected by the number of voltage pulses output by the sensing assembly by utilizing the principle of frictional electrification and electrostatic induction coupling. Because the friction unit I and the friction unit II have dislocation with a distance of e, two pairs of interdigital electrodes can output two groups of same voltage pulse signals with a certain phase difference. The movement direction of the floater can be judged according to the appearance sequence of the output voltage pulse signals, and then the increase or decrease of the flow is judged. The invention provides a new flow detection method based on a measurement principle, which has the advantages of simple structure, high precision, signal remote transmission and the like.

Drawings

Fig. 1 is a schematic view showing an overall structure of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 2 is a partial sectional view showing the overall structure of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 3 is a schematic view showing a base structure of a triboelectric remote-transmission float flowmeter according to the present invention;

fig. 4 is a schematic structural diagram of a packaging casing of a triboelectric remote transmission float flowmeter according to the present invention;

FIG. 5 is a schematic view showing a structure of a tapered tube assembly of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 6 is a schematic view showing a structure of a tapered tube of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 7 is a partial sectional view showing a tapered tube structure of a triboelectric remote-transmission float flowmeter according to the present invention;

FIG. 8 is a schematic structural diagram of an outer magnetic ring assembly of a triboelectric remote-transmission float flowmeter according to the present invention;

fig. 9 is a schematic diagram showing an external magnetic ring structure of a triboelectric remote-transmission float flowmeter according to the present invention;

fig. 10 is a schematic structural diagram of a friction material I of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 11 is a schematic structural view of an end cover of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 12 is a schematic structural diagram of a sensing assembly of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 13 is a schematic structural view of an electrode mounting plate of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 14 is a schematic structural diagram of a friction material II of a triboelectric remote-transmission float flowmeter according to the present invention;

fig. 15 is a schematic structural view of a float assembly of a triboelectric remote-transmission float flowmeter according to the present invention;

Fig. 16 is a schematic diagram showing a float structure of a triboelectric remote-transmission float flowmeter according to the present invention.

the specific implementation mode is as follows:

the embodiment is described with reference to fig. 1-16, and provides a specific embodiment of a triboelectric remote transmission float flowmeter, wherein the triboelectric remote transmission float flowmeter comprises a base 1, a packaging shell 2, a bolt assembly I3, a conical tube assembly 4, an end cover 5, a bolt assembly II6, a fixing screw I7, a sensing assembly 8, a float assembly 9 and a fixing screw II10, the conical tube assembly 4 is mounted on the base 1 through the fixing screw II10, the sensing assembly 8 is mounted on the conical tube assembly 4 through the fixing screw I7, the float assembly 9 is mounted inside the conical tube assembly 4, the end cover 5 is mounted on the conical tube assembly 4 through the bolt assembly II6 for sealing and limiting, and the packaging shell 2 is mounted on the conical tube assembly 4 through the bolt assembly I3.

the base 1 is provided with a connecting hole 1-1, a through hole I1-2 and an air inlet I1-3; the packaging shell 2 comprises a through hole II2-1 and a packaging shell mounting hole 2-2; the connecting hole 1-1 is used for connecting the base 1 with a pipeline at the upper stage; the base 1 is arranged on the conical pipe assembly 4 through a through hole I1-2; the packaging shell 2 is arranged on the tapered tube assembly 4 through a through hole II2-1 and is connected with the bolt assembly I3 through the packaging shell mounting hole 2-2 in a matching mode.

The cone tube assembly 4 comprises a cone tube 4-1 and an external magnetic ring assembly 4-2; the tapered tube 4-1 is provided with a threaded hole I4-1-1, a T-shaped sliding groove 4-1-2, a tapered tube mounting hole I4-1-3, a connecting hole II4-1-4, an air outlet 4-1-5, a tapered cavity 4-1-6, a limiting support seat 4-1-7 and a tapered tube mounting hole II 4-1-8; the outer magnetic ring assembly 4-2 comprises an outer magnetic ring 4-2-1 and friction material I4-2-2; the outer magnetic ring 4-2-1 comprises a magnetic ring 4-2-1-1, a T-shaped slider 4-2-1-2 and a flitch I4-2-1-3.

the threaded hole I4-1-1 is used for connecting the sensing assembly 8; the outer magnetic ring assembly 4-2 is arranged on the conical tube 4-1 through the matching of the T-shaped sliding groove 4-1-2 and the T-shaped sliding block 4-2-2; the conical pipe mounting holes I4-1-3 are distributed on the upper end face of the conical pipe 4-1 and used for connecting the end cover 5; the connecting hole II4-1-4 is used for connecting the conical pipe 4-1 with a next-stage pipeline; the gas flows in from the gas inlet 1-3, passes through the conical cavity 4-1-6 and flows out from the gas outlet 4-1-5; the limiting support seats 4-1-7 are distributed inside the conical pipe 4-1 and used for supporting and limiting the floater assembly 9; the conical pipe mounting holes II4-1-8 are distributed at the bottom of the conical pipe 4-1 and are used for connecting the conical pipe 4-1 with the base 1; the friction material I4-2-2 is stuck on a flitch I4-2-1-3 on the outer magnetic ring 4-2-1 through gluing; the end cover 5 is provided with an end cover mounting hole 5-1 and a limiting hole 5-2; the end cover 5 is installed on the conical pipe assembly 4 through an end cover installation hole 5-1, and the floater assembly 8 is limited through a limiting hole 5-2.

the material of the conical tube 4-1 can be metal, glass or plastic, the friction material I4-2-2 can be a material with strong electronegativity, such as PTFE (polytetrafluoroethylene), PDMS (polydimethylsiloxane), PVC (polyvinyl chloride), FEP (fluorinated ethylene propylene copolymer), Kapton (polyimide film material) and the like, in the embodiment, the material of the friction material I4-2-2 is PTFE (polytetrafluoroethylene), the friction material I4-2-2 comprises a friction unit I4-2-1 and a friction unit II4-2-2-2, the friction unit I4-2-1 and the friction unit II4-2-2-2 comprise a plurality of friction unit monomers which are arranged in parallel at equal intervals, the length of each friction unit monomer is a, the width of each friction unit monomer is b, the interval distance between two adjacent friction unit monomers is c, the friction units I4-2-1 and II4-2-2-2 are separated by a certain interval, d is a range of d is 1 mm to d, d is used for generating a phase difference between two groups of friction units I-24 mm-2-2, and d is used for generating a phase difference signal, and d is used for generating a phase difference between two groups of friction units I-24 mm-2-3 mm, and II-2-2-2, and 3 mm, and II units I-3 mm, wherein the phase difference is used for generating a phase difference of the friction unit II-2-3 mm.

The sensing assembly 8 comprises an electrode mounting plate 8-1 and a friction material II 8-2; the electrode mounting plate 8-1 is provided with a sensing assembly mounting hole 8-1-1 and a flitch II 8-1-2; the friction material II8-2 comprises an electrode I8-2-1, an electrode II8-2-2, an electrode III8-2-3 and an electrode IV 8-2-4; the friction material II8-2 is adhered to a flitch II8-1-2 on the electrode mounting plate 8-1 through gluing; the sensing assembly 8 is arranged on the conical pipe 4-1 through a sensing assembly mounting hole 8-1-1; the floater component 9 comprises a floater 9-1 and a limit shaft 9-2; the floater 9-1 is provided with a through hole IV; the floater 9-1 is arranged on the limit shaft 9-2 through a through hole IV; the floater component 9 is arranged on a limit supporting seat 4-1-7 in the conical tube 4-1 through a limit shaft 9-2.

The friction material II8-2 is an electropositive metal material, which can be copper, aluminum, silver, etc., and the friction material II8-2 in the embodiment is copper; the friction material II8-2 is a friction material and can also be used as a conductive electrode; the electrode I8-2-1 and the electrode II8-2-2 form a column of interdigital electrodes, the length of an interdigital of the electrode I8-2-1 and the electrode II8-2-2 is f, the width of the interdigital is g, and the interdigital interval of the electrode I8-2-1 and the electrode II8-2-2 is h; the electrode III8-2-3 and the electrode IV8-2-4 form another pair of interdigital electrodes, the length of an interdigital of the electrode I8-2-1 and the electrode II8-2-2 is I, the width of the interdigital is j, and the interdigital interval of the electrode I8-2-1 and the electrode II8-2-2 is k; the spacing distance between the two pairs of interdigital electrodes is l; the fingers of electrode I8-2-1 and electrode III8-2-3 are fully aligned, and the fingers of electrode II8-2-2 and electrode IV8-2-4 are fully aligned; b = g = j =2c =2h =2k, a = f = i, d = l, 0< e < b.

The working principle is as follows: when fluid passes through the triboelectric remote-transmission type float flowmeter, the float in the conical tube will move up and down with the change of the flow. Because the floater is a magnetic floater, the linear displacement of the floater in the conical tube can be converted into the linear displacement of the external magnetic ring component through the external magnetic ring. The outer magnetic ring is adhered with a friction unit I and a friction unit II which have a certain dislocation distance, and the sensing assembly is adhered with two rows of completely same interdigital electrodes which correspond to the friction unit I and the friction unit II. The friction unit I and the friction unit II both belong to strong electronegative materials, and the electron obtaining capacity is strong; the interdigital electrode is made of an electropositive metal material and is easy to lose electrons; because the two materials have different electron gaining and losing capacities, based on the principle of frictional electrification and electrostatic induction coupling, when the outer magnetic ring assembly and the sensing assembly slide mutually, two groups of same voltage pulse signals are generated, and the flow is calibrated according to the accumulated voltage pulse signals; because the friction unit I and the friction unit II have the dislocation distance of e, when the friction unit I is aligned with one row of interdigital electrodes, the friction unit II has the dislocation distance of e with the other row of interdigital electrodes, and therefore a certain phase difference exists between the two groups of generated voltage pulse signals; and calibrating the movement direction of the floater according to the sequence of the two groups of voltage pulse signals, and further judging the increase or decrease of the flow.

In summary, the present invention provides a triboelectric remote-transmission float flowmeter to solve the technical problems of complex mechanical structure, mechanical wear, mechanical hysteresis, poor precision, etc. of the current float flowmeter. The triboelectric remote transmission type float flowmeter provided by the invention can judge the size and direction of the flow through the voltage signal characteristics generated by the sensing assembly, and has the advantages of simple structure, high precision, signal remote transmission and the like.