阅读说明：本技术 栅格位错型摩擦电式浮子流量计 (grid dislocation type triboelectric float flowmeter ) 是由 程廷海 周建文 徐毓鸿 王宇琦 卢晓晖 杨伟雄 刘雨生 殷梦飞 于 2019-09-20 设计创作，主要内容包括：一种栅格位错型摩擦电式浮子流量计,以解决当前浮子流量传感计机械结构简单和信号远传不可兼得等技术问题。本发明设计的栅格位错型摩擦电式浮子流量计由底座组件、外壳、内六角螺柱、端盖组件、内六角螺母、传感组件和限位支架组成。本发明利用浮子沿限位杆滑动所产生的电压脉冲输出信号,可精准的测量流量的大小,基于摩擦起电与静电感应耦合原理,具有结构简单、测量精度高且可信号远传等优点,对气动系统的智能化发展具有重要意义。(a grid dislocation type triboelectric float flowmeter aims to solve the technical problems that the current float flow sensor is simple in mechanical structure and unavailable in signal remote transmission. The invention relates to a grid dislocation type triboelectric float flowmeter, which consists of a base component, a shell, an inner hexagonal stud, an end cover component, an inner hexagonal nut, a sensing component and a limiting bracket. The invention utilizes the voltage pulse output signal generated by the sliding of the floater along the limiting rod, can accurately measure the flow, is based on the principle of frictional electrification and electrostatic induction coupling, has the advantages of simple structure, high measurement accuracy, signal-credible remote transmission and the like, and has important significance for the intelligent development of a pneumatic system.)

1. A lattice dislocation triboelectric float flowmeter characterized by: a grid dislocation triboelectric float flowmeter which is an external sensing component realization mode; the grid dislocation type triboelectric float flowmeter comprises a base component (1), a shell (2), an inner hexagonal stud (3), an end cover component (4), an inner hexagonal nut (5), a sensing component (6) and a limiting bracket (7); the limiting bracket (7) is arranged in the shell (2) through a limiting bracket mounting seat (2-4); the sensing assembly (6) is arranged in the shell (2) through a limiting bracket (7); the inner hexagonal stud (3) is matched and connected with the inner hexagonal stud (3), and the base component (1) and the end cover component (4) are fixedly installed on the shell (2).

2. a lattice dislocation triboelectric float flowmeter according to claim 1, characterized in that: the base assembly (1) comprises a base (1-1), a base sealing ring (1-2) and a pipe joint (1-3); the base (1-1) is provided with a flange chassis (1-1-1), a through hole I (1-1-2), a counter bore I (1-1-3), a sealing seat I (1-1-4) and a threaded hole I (1-1-5); the through holes I (1-1-2) are uniformly distributed on the flange chassis (1-1-1); the counter bores I (1-1-3) are uniformly distributed at four corners of the base (1-1); the base sealing ring (1-2) is arranged on the sealing seat I (1-1-4) in an interference fit manner; the pipe joint (1-3) is arranged on the base (1-1) through a threaded hole I (1-1-5).

3. A lattice dislocation triboelectric float flowmeter according to claim 1, characterized in that: the shell (2) comprises a shell top (2-1), a taper pipe (2-2), a shell bottom (2-3) and a limiting bracket mounting seat (2-4); the end cover assembly (4) comprises an end cover (4-1), an end cover sealing ring (4-2) and a pipe joint II (4-3); the end cover (4-1) is provided with a counter bore II (4-1-1), a limiting hole I (4-1-2), a sealing seat II (4-1-3) and a threaded hole II (4-1-4); the top (2-1) of the shell is arranged on the end cover component (4) through an end cover sealing ring (4-2); the bottom (2-3) of the shell is arranged on the base (1-1) through a base sealing ring (1-2); the counter bores II (4-1-1) are uniformly distributed at four corners of the end cover (4-1); the limiting holes I (4-1-2) are distributed in the center of the end cover (4-1); the end cover sealing ring (4-2) is arranged on the end cover (4-1) through a sealing seat II (4-1-3); the pipe joint II (4-3) is arranged on the end cover (4-1) through a threaded hole II (4-1-4).

4. the grid dislocation type triboelectric float flowmeter as claimed in claim 1, wherein the sensing assembly (6) comprises a solid limiting shaft (6-100), a float assembly I (6-101) and an external cylindrical interdigital electrode (6-102), the float assembly I (6-101) comprises a float I (6-101-1) and a friction material IA (6-101-2), the float I (6-101-1) is provided with a through hole II (6-101-1), the external cylindrical interdigital electrode (6-102) comprises a friction unit A (6-102-1), a friction unit B (6-102-2), a friction unit C (6-102-3) and a friction unit D (6-102-3), the external cylindrical interdigital electrode (6-102) is adhered on the solid limiting shaft (6-100) by adhesion, the float assembly I (6-101) is installed on the limiting shaft (6-100) through the through hole II (6-101-1), the friction material I (6-102) is installed on the solid limiting shaft (6-100) through the through hole II (6-101-1), the friction unit I (6-102) is installed on the limiting shaft (6-100), the friction unit A-102) through the through hole II (6-101-1), the friction unit C (6-102) is installed on the solid limiting shaft (6-102), the friction unit A-1), the comb-102, the comb unit A-2) is formed by the friction unit A, the comb-2, the comb unit A, the comb unit (6-2) and the comb-6-102, the comb-2 is formed by the friction unit A, the comb-2, the comb-6-102 is formed by the comb-2, the comb-6-102, the comb-2, the comb-6-2 is formed by the friction unit A, the comb-2 is formed by the friction unit A, the.

5. a lattice dislocation triboelectric float flowmeter according to claim 1, characterized in that: the limiting bracket (7) is provided with an air outlet hole (7-1) and a limiting hole II (7-2); the limiting bracket (7) is arranged in the shell (2) through a limiting bracket mounting seat (2-4); the sensing component (6) is arranged in the shell (2) through a limit hole II (7-2) on the limit bracket (7).

6. A lattice dislocation triboelectric float flowmeter according to claim 1, characterized in that: a grid dislocation triboelectric float flowmeter being a built-in sensing component implementation; the sensing assembly (6) comprises a hollow limiting rod (6-200), a floater assembly II (6-201) and a built-in cylindrical interdigital electrode (6-202); the floater assembly II (6-201) comprises a floater II (6-201-1), a friction material IB (6-201-2) and a cylindrical magnet (6-201-3); the floater II (6-201-1) is provided with a through hole III (6-201-1-1); the friction material IB (6-201-2) is composed of a plurality of annular friction units II (6-201-2-1), and the arrangement mode of the friction units is similar to that of the friction material IA (6-101-2); the built-in cylindrical interdigital electrode (6-202) comprises a friction unit E (6-202-1), a friction unit F (6-202-2), a friction unit G (6-202-3) and a friction material IIH (6-202-4), and the arrangement mode of the friction units is similar to that of the external cylindrical interdigital electrode (6-102); the friction unit E6-202-1 and the friction unit F6-202-2 form a pair of interdigital electrodes; the friction units G6-202-3 and the friction material IH6-202-4 form another pair of interdigital electrodes; the built-in cylindrical interdigital electrode (6-202) is arranged inside the hollow limiting rod (6-200) through gluing; the floater component II (6-201) is arranged on the hollow limiting rod (6-200) through the through hole III (6-201-1-1); the floater II (6-201-1) is a magnetic floater, and is sleeved outside the hollow limiting rod (6-200); the cylindrical magnet (6-201-3) is arranged on the inner side of the hollow limiting rod (6-200); the friction material IB (6-201-2) is adhered to the outer part of the cylindrical magnet (6-201-3) through gluing.

7. a lattice dislocation triboelectric float flow meter according to claim 1 or claim 4 or claim 6, in which: the shell (2) is made of metal, glass or plastic; the external cylindrical interdigital electrodes (6-102) and the built-in cylindrical interdigital electrodes (6-202) are made of electropositive metal materials such as copper, aluminum or silver; the friction material IA (6-101-2) and the friction material IB (6-201-2) are materials with strong electronegativity, such as PTFE (polytetrafluoroethylene), PDMS (polydimethylsiloxane), PVC (polyvinyl chloride), FEP (fluorinated ethylene propylene copolymer), or Kapton (polyimide film material).

Technical Field

the invention designs a grid dislocation type triboelectric float flowmeter, and belongs to the field of flow measurement.

Background

Flow measurement is one of the components of measurement science and technology, and has close relation with national economy, national defense construction and scientific research. In the current times of energy crisis and industrial production automation degree becoming higher and higher, the status and the role of flow measurement in national economy are more obvious. Among them, the wide application of float flowmeter has made very important contribution to energy saving and emission reduction.

float flowmeters can be classified into glass float flowmeters and metal float flowmeters according to their materials. The glass float flowmeter has the characteristics of simple structure, low price, high measurement precision and the like, and is widely applied to production units and scientific research departments of chemical industry, food, environmental protection, machinery, pharmacy and the like. However, the glass float flowmeter is only suitable for in-situ indication, and signals cannot be transmitted remotely and cannot be used for measurement of opaque fluid. The metal float flowmeter can transmit signals remotely, but complex mechanical structures are required mostly, and the measurement error is large, so that the progress and the development of the float flowmeter are limited to a great extent.

Therefore, the float flowmeter which is simple in structure, high in measurement accuracy and capable of remotely transmitting the signal is explored and designed, and the float flowmeter is particularly important for the development of industrial production.

Disclosure of Invention

the invention discloses a grid dislocation type triboelectric float flowmeter, aiming at solving the technical problems that the current float flow sensor has a simple mechanical structure and cannot obtain signal remote transmission and the like.

the technical scheme adopted by the invention is as follows:

the grid dislocation type triboelectric float flowmeter of the external sensing component implementation mode comprises a base component, a shell, an inner hexagonal stud, an end cover component, an inner hexagonal nut, a sensing component and a limiting bracket; the limiting bracket is arranged in the shell through a limiting bracket mounting seat; the sensing assembly is arranged in the shell through a limiting bracket; the inner hexagonal stud is matched and connected with the inner hexagonal stud, and the base assembly and the end cover assembly are fixedly arranged on the shell.

The base component comprises a base, a base sealing ring and a pipe joint; the base is provided with a flange chassis, a through hole I, a counter bore I, a sealing seat I and a threaded hole I; the through holes I are uniformly distributed on the flange chassis and are used for external connection; the counter bores I are uniformly distributed at four corners of the base and are used for connecting the base with the shell; the base sealing ring is arranged on the sealing seat I in an interference fit manner and used for sealing; the pipe joint is installed on the base through a threaded hole I and used for air inlet.

The shell comprises a shell top, a taper pipe, a shell bottom and a limiting bracket mounting seat; the end cover assembly comprises an end cover, an end cover sealing ring and a pipe joint II; the end cover is provided with a counter bore II, a limiting hole I, a sealing seat II and a threaded hole II; the top of the shell is arranged on the end cover assembly through an end cover sealing ring; the bottom of the shell is arranged on the base through a base sealing ring; the counter bores II are uniformly distributed at four corners of the end cover and are used for connecting the end cover with the shell; the limiting holes I are distributed in the center of the end cover and used for supporting and limiting the sensing assembly; the end cover sealing ring is arranged on the end cover through a sealing seat II; and the pipe joint II is arranged on the end cover through a threaded hole II and used for giving vent to anger.

The sensing assembly comprises a solid limiting shaft, a floater assembly I and an external cylindrical interdigital electrode; the floater assembly I comprises a floater I and a friction material IA; the floater I is provided with a through hole II; the external cylindrical interdigital electrode comprises a friction unit A, a friction unit B, a friction unit C and a friction unit D; the external cylindrical interdigital electrode is adhered to the solid limiting shaft by gluing; the floater component I is arranged on the solid limiting shaft through a through hole II; the friction material IA is adhered to the through hole II through gluing; the limiting bracket is provided with an air outlet hole and a limiting hole II; the limiting bracket is arranged in the shell through a limiting bracket mounting seat; the sensing assembly is arranged in the shell through a limiting hole II on the limiting bracket.

the friction material IA is composed of a plurality of annular friction units I, the width of each annular friction unit I is a, the adjacent distance between the annular friction units I is B, the electrode widths of the friction unit A, the friction unit B, the friction unit C and the friction unit D are all C, the friction unit A and the friction unit B form one pair of comb ~ shaped interdigital electrodes, the interdigital distance is D, the friction unit C and the friction unit D form the other pair of comb ~ shaped interdigital electrodes, the interdigital distance is e, the dislocation distance of the two pairs of interdigital electrodes is f, the value range of f is 2 ~ 10mm, the f is used for generating two groups of voltage pulse signals with phase differences, and a = C =2B =2D =2 e.

Or a grid dislocation type triboelectric float flowmeter which is an external sensing component realization mode, wherein the sensing component 6 comprises a hollow limiting rod, a float component II and a built-in cylindrical interdigital electrode; the floater assembly II comprises a floater II, a friction material IB and a cylindrical magnet; the floater II is provided with a through hole III; the friction material IB is composed of a plurality of annular friction units II, and the arrangement mode and the size characteristic relation of the friction units are similar to those of the friction material IA; the built-in cylindrical interdigital electrodes 6-202 comprise a friction unit E, a friction unit F, a friction unit G and a friction unit H, and the arrangement mode and the size characteristic relation of the friction units are similar to those of the built-out cylindrical interdigital electrodes; the friction unit E and the friction unit F form a pair of interdigital electrodes; the friction unit G and the friction material IH form another pair of interdigital electrodes; the built-in cylindrical interdigital electrode is arranged inside the hollow limiting rod through gluing; the floater component II is arranged on the hollow limiting rod through the through hole III; the floater II is a magnetic floater which is sleeved outside the hollow limiting rod; the cylindrical magnet is arranged on the inner side of the hollow limiting rod. The friction material IB is adhered to the outer part of the cylindrical magnet through gluing.

The invention has the beneficial effects that:

In summary, the invention provides a grid dislocation type triboelectric float flowmeter, which is characterized in that a cylindrical interdigital electrode is arranged on the outer side or the inner side of a limiting rod, and the change of flow and float height is converted into the change rule of flow along with a voltage signal by utilizing the principle of triboelectrification and electrostatic induction coupling, so that the flow can be accurately measured. Compared with the prior art, the glass float flowmeter designed by the invention has the advantages of simple structure, high measurement precision, signal-trusted remote transmission and the like, and provides a new flow measurement idea for pneumatic flow monitoring.

Drawings

Fig. 1 is a schematic view showing the overall structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

Fig. 2 is a partial cross-sectional view showing the overall structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

FIG. 3 is a schematic view of a base assembly of a lattice dislocation triboelectric float flowmeter according to the present invention;

Fig. 4 is a top view of a base structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

FIG. 5 is a bottom view of a base structure of a lattice dislocation triboelectric float flow meter in accordance with the present invention;

FIG. 6 is a schematic view of the housing structure of a lattice dislocation triboelectric float flowmeter according to the present invention;

Fig. 7 is a sectional view showing a housing structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

FIG. 8 is a schematic structural view of an end cap assembly of a lattice dislocation triboelectric float flow meter according to the present invention;

Fig. 9 is a schematic diagram showing the end cap structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

FIG. 10 is a schematic diagram of a sensing assembly of an external embodiment of a grid dislocation triboelectric float flowmeter according to the present invention;

fig. 11 is a schematic structural diagram of a float assembly I of a lattice dislocation type triboelectric float flowmeter according to an external embodiment of the present invention;

FIG. 12 is a schematic diagram of a float I of a lattice dislocation triboelectric float flow meter according to an external embodiment of the present invention;

fig. 13 is a schematic structural diagram of a friction material IA of a lattice dislocation triboelectric float flowmeter according to an external embodiment of the present invention;

Fig. 14 is a schematic structural diagram of an external cylindrical interdigital electrode of a grid dislocation type triboelectric float flowmeter according to an external embodiment of the present invention;

Fig. 15 is a schematic view of a spacing bracket structure of a lattice dislocation type triboelectric float flowmeter according to the present invention;

FIG. 16 is a schematic diagram of a sensing assembly of a grid dislocation triboelectric float flow meter according to a built-in embodiment of the present invention;

FIG. 17 is a schematic structural diagram of a float assembly II of a lattice dislocation triboelectric float flow meter according to a built-in embodiment of the present invention;

FIG. 18 is a schematic view of a float II of a lattice dislocation triboelectric float flow meter according to an embodiment of the present invention;

FIG. 19 is a schematic structural diagram of a friction material IB of a grating dislocation triboelectric float flow meter according to a built-in embodiment of the present invention;

Fig. 20 is a schematic diagram showing a structure of built-in cylindrical interdigital electrodes of a grid dislocation type triboelectric float flowmeter according to a built-in embodiment of the present invention.

Detailed Description