CN217687349U

CN217687349U - Double-tube mass flowmeter

Info

Publication number: CN217687349U
Application number: CN202221925814.2U
Authority: CN
Inventors: 陈新亮
Original assignee: Yuyao Zhenxing Flow Instrument Factory
Current assignee: Yuyao Zhenxing Flow Instrument Factory
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-28
Anticipated expiration: 2032-07-25

Abstract

The utility model provides a double-tube mass flowmeter, which comprises a flowmeter body and an instrument device arranged on the flowmeter body, wherein the instrument device comprises an instrument shell, at least one end cover in threaded connection with the instrument shell and an anti-loosening structure for preventing the end cover from loosening; the anti-loosening structure comprises a connecting column arranged on the outer wall of the instrument shell, and the connecting column extends towards the end cover; one end, close to the end cover, of the connecting column is in threaded connection with a locking fastener, and the outer side end of the locking fastener abuts against the end face of the end cover; when in use, the anti-loose fastener is tightly abutted against the end cover by screwing the anti-loose fastener, so that the end cover is prevented from being loosened; this double-barrelled mass flowmeter sets up anti loosening structure, can prevent effectively that the end cover is not hard up increase of service life.

Description

Double-tube mass flowmeter

Technical Field

The utility model relates to a flowmeter field especially relates to a double-barrelled mass flow meter.

Background

In an industrial site, meters for measuring fluid flow are collectively called a flow meter or a flow meter, and are one of the most important meters in industrial measurement. With the development of industry, the requirements on the accuracy and range of flow measurement are higher and higher, and in order to adapt to multiple purposes, various types of flow meters are developed in succession and widely applied to industries such as petroleum and natural gas, petrochemical industry, water treatment, food and beverage, pharmacy, energy, metallurgy, paper pulp and building materials, and the like. The coriolis mass flowmeter is a novel instrument for directly and precisely measuring the mass flow rate of a fluid, and thus has high reliability and long service life, and can also measure the flow rates of high-viscosity fluids and high-pressure gases, and is widely used in a plurality of fields.

The existing Coriolis mass flowmeter is generally provided with an instrument device, an end cover is arranged on the instrument device, and the end cover is easy to loosen or even fall off due to vibration and other reasons when in use, so that the use effect and the service life are influenced; current mass flowmeter, its circuit installation cavity generally set up at the casing rear, because the flowmeter adopts the mode of leaning on the wall installation, therefore the installation cavity is not convenient for open, brings great degree of difficulty to work such as maintenance installation, wiring, wastes time and energy.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a double-barrelled mass flow meter is provided to overcome the easy not hard up and the inconvenient defect of wiring of current mass flow meter end cover.

(II) technical scheme

In order to solve the technical problem, the utility model provides a double-tube mass flowmeter, which comprises a flowmeter body and an instrument device arranged on the flowmeter body, wherein the instrument device comprises an instrument shell, at least one end cover in threaded connection with the instrument shell and a locking structure for preventing the end cover from loosening; the anti-loosening structure comprises a connecting column arranged on the outer wall of the instrument shell, and the connecting column extends towards the end cover; one end, close to the end cover, of the connecting column is in threaded connection with a locking fastener, and the outer side end of the locking fastener abuts against the end face of the end cover; when the locking fastener is used, the locking fastener is tightly abutted against the end cover by screwing the locking fastener, so that the end cover is prevented from being loosened. This double-barrelled mass flowmeter sets up anti loosening structure, can prevent effectively that the end cover is not hard up increase of service life.

Furthermore, be provided with side wiring structure on the instrument housing, side wiring structure is including setting up at least one wiring guide pillar of instrument housing one side, threaded connection has the connector cap on the wiring guide pillar. The instrument shell is provided with a display assembly at the front end, and a wiring cavity is arranged on one side opposite to the wiring guide post; the number of the end covers is two, one end cover is arranged on the display assembly in a covering mode, and the other end cover is arranged on the wiring cavity in a covering mode. This mode adopts the side wiring structure and the wiring chamber that the side set up, and maintenance and wiring labour saving and time saving.

Furthermore, the wiring guide pillar with the connector cap is two, the wiring guide pillar with meter housing integrated into one piece, the spliced pole with meter housing integrated into one piece.

Further, the flowmeter body includes the dustcoat body, the internal double-barrelled subassembly that is the U-shaped of installing of dustcoat, the drive coil is installed to double-barrelled subassembly downside, detection coil is installed to the drive coil both sides. First flange and second flange are installed to the both sides of the outer cover body, double-barrelled subassembly one end is connected first flange, and the other end is connected second flange.

Furthermore, a first coil support is arranged at the center of the lower end of the double-tube assembly, a second coil support and a third coil support are respectively arranged on two sides of the first coil support, the first coil support is provided with the driving coil, and the second coil support and the third coil support are provided with the detection coil.

Further, the double-tube assembly comprises a first flow tube and a second flow tube which are arranged in parallel and at intervals, and a plurality of holding sheets are arranged between the first flow tube and the second flow tube.

Furthermore, a first interface and a second interface are arranged at one end of each of the first connecting flange and the second connecting flange, the first interface is connected with the first flow pipe, and the second interface is connected with the second flow pipe; the other ends of the first connecting flange and the second connecting flange are provided with a plurality of connecting holes.

Further, the lower extreme of instrument housing is provided with third flange, the instrument device passes through third flange and connecting piece are installed the central point of dustcoat upper end puts.

Further, the anti-loose fastener is a fastening screw.

(III) advantageous effects

The utility model provides a pair of double-barrelled mass flow meter compares with prior art and has following advantage:

1) The anti-loosening structure is arranged, and the outer side end of the anti-loosening fastener can be tightly abutted against the end face of the end cover by screwing the anti-loosening fastener through the matching of the connecting column and the anti-loosening fastener, so that the end cover can be prevented from loosening, the service life is prolonged, and the use effect is ensured;

2) The side end wiring structure is arranged, the wiring guide pillar and the wiring nut are arranged on the side end, the wiring cavity is arranged on the opposite side of the side end wiring structure, the wiring cavity is positioned on the side part and is sealed through the end cover, the wiring cavity is convenient to open, and the maintenance, the installation and the wiring are very convenient;

3) The double-tube assembly can reduce the sensitivity of external vibration, easily realize the measurement of phase difference, and has more accurate detection result and high measurement precision.

Drawings

Fig. 1 is a perspective view of a double tube mass flowmeter of the present invention;

fig. 2 is an exploded view of a dual tube mass flowmeter of the present invention;

fig. 3 is a perspective view of a dual tube mass flowmeter device of the present invention;

fig. 4 is a perspective view of another perspective view of a dual tube mass flow meter device of the present invention;

fig. 5 is an exploded view of a dual tube mass flowmeter device of the present invention;

fig. 6 is a perspective view of the double-tube mass flowmeter body of the present invention with the outer cover removed;

fig. 7 is a schematic structural diagram of a double-tube assembly of the double-tube mass flowmeter of the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. a flowmeter body; 11. an outer cover body; 12. a first connecting flange; 13. a second connecting flange; 14. a dual tube assembly; 15. a first coil support; 16. a second coil support; 17. a third coil support; 18. a drive coil; 19. a detection coil; 121. a first interface; 122. a second interface; 123. connecting holes; 141. a first flow tube; 142. a second flow tube; 143. a retention sheet; 2. an instrument device; 21. an instrument housing; 22. an end cap; 23. connecting columns; 24. a loose-proof fastener; 25. a wiring guide post; 26. a terminal cap; 27. a third connecting flange; 28. a display component; 3. a connecting member.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 7, the present invention provides a double-tube mass flowmeter, which includes a flowmeter body 1 and a meter device 2 installed on the flowmeter body 1.

Referring to fig. 3 and 5, the meter apparatus 2 includes a meter housing 21, at least one end cap 22 screwed to the meter housing 21, and a loosening prevention structure for preventing the end cap 22 from being loosened. The anti-loosening structure comprises a connecting column 23 arranged on the outer wall of the instrument shell 21, and the connecting column 23 extends towards the end cover 22.

Referring to fig. 3 and 5, one end of the connecting column 23 close to the end cover 22 is connected with a locking fastener 24 through a thread, an outer end of the locking fastener 24 abuts against an end face of the end cover 22, and a contact area between the locking fastener 24 and the end cover 22 can be designed according to actual conditions. In order to reduce the structure, the anti-loose fastener 24 may be a fastening screw, and one end of the fastening screw is provided with an inner hexagonal groove, so that the anti-loose fastener 24 is conveniently screwed. In use, by threading the check fastener 24, the check fastener 24 is tightened against the end cap 22, thereby preventing the end cap 22 from loosening.

The flowmeter is provided with the anti-loosening structure, and the anti-loosening fastener can be screwed by matching the connecting column with the anti-loosening fastener during use, so that the outer side end of the anti-loosening fastener is tightly abutted against the end face of the end cover, the end cover can be prevented from loosening, the service life is prolonged, and the using effect is ensured.

Referring to fig. 4 and 5, the meter case 21 is provided with a side end wiring structure, the side end wiring structure includes at least one wiring guide post 25 disposed at one side of the meter case 21, and a terminal cap 26 is screwed on the wiring guide post 25. The meter case 21 is provided with a display unit 28 at the front end, and a wiring cavity is provided at the side opposite to the wiring guide post 25; the display component 28 comprises a display screen, keys and the like, and a wiring board is arranged in the wiring cavity; in this embodiment, the end caps 22 are two in number, one of which is disposed over the display module 28 for sealing the display module 28, and the other of which is disposed over the wiring cavity for sealing the wiring cavity. When the end cover 22 is loosened, dust is easy to enter the cavity, the service life is influenced, the loosening structure can solve the problem of loosening, and the service life is prolonged.

This flowmeter changes to the wiring guide pillar and the wiring nut that the side set up to and set up the wiring chamber in the opposite side of side wiring structure, and the wiring chamber is located the lateral part and seals through the end cover, and the wiring chamber is opened conveniently, and the maintenance installation is all very convenient with the wiring.

Referring to fig. 4 and 5, the number of the wire connecting guide posts 25 and the wire connecting head cap 26 is two, the wire connecting guide posts 25 are integrally formed with the meter case 21, and the connecting post 23 is integrally formed with the meter case 21.

Referring to fig. 2 and 6, the flowmeter body 1 includes an outer cover 11, and a first connecting flange 12 and a second connecting flange 13 which are installed on both sides of the outer cover 11, the first connecting flange 12 and the second connecting flange 13 have the same structure, a U-shaped double pipe assembly 14 is installed in the outer cover 11, one end of the double pipe assembly 14 is connected to the first connecting flange 12, and the other end is connected to the second connecting flange 13.

Referring to fig. 6 and 7, a first coil support 15 is provided at the center of the lower end of the double tube assembly 14, a second coil support 16 and a third coil support 17 are provided at both sides of the first coil support 15, respectively, a driving coil 18 is mounted on the first coil support 15, and a detection coil 19 is mounted on the second coil support 16 and the third coil support 17.

Referring to fig. 2 and 6, the dual tube assembly 14 includes a first flow tube 141 and a second flow tube 142 arranged in parallel and at an interval, the first flow tube 141 and the second flow tube 142 have the same structure, and a plurality of holding pieces 143 are installed between the first flow tube 141 and the second flow tube 142. The double-tube assembly can reduce the sensitivity of external vibration, easily realize the measurement of phase difference, and has more accurate detection result and high measurement precision.

Referring to fig. 2 and 6, a first interface 121 and a second interface 122 are respectively disposed at one end of the first connecting flange 12 and one end of the second connecting flange 13, the first interface 121 is connected to the first flow pipe 141, and the second interface 122 is connected to the second flow pipe 142; the other ends of the first and

second connection flanges

12 and 13 are provided with a plurality of connection holes 123 to facilitate connection with an external pipe.

Referring to fig. 1 and 2, the meter housing 21 is provided at a lower end thereof with a third coupling flange 27, and the meter unit 2 is mounted at a central position of an upper end of the outer cover 11 through the third coupling flange 27 and the connector 3.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A dual tube mass flowmeter, characterized by: the flowmeter comprises a flowmeter body (1) and an instrument device (2) installed on the flowmeter body (1), wherein the instrument device (2) comprises an instrument shell (21), at least one end cover (22) in threaded connection with the instrument shell (21) and a locking structure for preventing the end cover (22) from loosening; the anti-loosening structure comprises a connecting column (23) arranged on the outer wall of the instrument shell (21), and the connecting column (23) extends towards the end cover (22); one end, close to the end cover (22), of the connecting column (23) is connected with a locking fastener (24) in a threaded mode, and the outer side end of the locking fastener (24) abuts against the end face of the end cover (22); in use, the anti-loosening fastener (24) is tightly abutted against the end cover (22) by screwing the anti-loosening fastener (24), so that the end cover (22) is prevented from loosening; the flowmeter body (1) comprises an outer cover body (11), a U-shaped double-pipe assembly (14) is installed in the outer cover body (11), a driving coil (18) is installed on the lower side of the double-pipe assembly (14), and detection coils (19) are installed on two sides of the driving coil (18).

2. The dual tube mass flow meter of claim 1, wherein: the instrument shell (21) is provided with a side end wiring structure, the side end wiring structure comprises at least one wiring guide pillar (25) arranged on one side of the instrument shell (21), and a wiring head cap (26) is connected to the wiring guide pillar (25) in a threaded mode.

3. The dual tube mass flow meter of claim 2, wherein: the wiring guide post (25) with terminal cap (26) are two, wiring guide post (25) with meter housing (21) integrated into one piece, spliced pole (23) with meter housing (21) integrated into one piece.

4. The dual tube mass flow meter of claim 1, wherein: first flange (12) and second flange (13) are installed to outer cover body (11) both sides, double-barrelled subassembly (14) one end is connected first flange (12), and the other end is connected second flange (13).

5. The dual tube mass flow meter of claim 4, wherein: the double-tube assembly is characterized in that a first coil support (15) is arranged in the center of the lower end of the double-tube assembly (14), a second coil support (16) and a third coil support (17) are respectively arranged on two sides of the first coil support (15), the driving coil (18) is installed on the first coil support (15), and the detection coil (19) is installed on the second coil support (16) and the third coil support (17).

6. The dual tube mass flow meter of claim 4, wherein: the double-tube assembly (14) comprises a first flow tube (141) and a second flow tube (142) which are arranged in parallel and at intervals, and a plurality of holding pieces (143) are arranged between the first flow tube (141) and the second flow tube (142).

7. The dual tube mass flow meter of claim 6, wherein: one end of each of the first connecting flange (12) and the second connecting flange (13) is provided with a first interface (121) and a second interface (122), the first interface (121) is connected with the first flow pipe (141), and the second interface (122) is connected with the second flow pipe (142); the other ends of the first connecting flange (12) and the second connecting flange (13) are provided with a plurality of connecting holes (123).

8. The dual tube mass flow meter of claim 4, wherein: the lower extreme of meter housing (21) is provided with third flange (27), instrument device (2) pass through third flange (27) and connecting piece (3) are installed the central point of dustcoat body (11) upper end puts.

9. The dual tube mass flow meter of claim 1, wherein: the anti-loose fastener (24) is a fastening screw.

10. The dual tube mass flow meter of claim 2, wherein: the instrument shell (21) is provided with a display component (28) at the front end, and a wiring cavity is arranged at one side opposite to the wiring guide post (25); the number of the end covers (22) is two, one of the end covers is covered on the display assembly (28), and the other end cover is covered on the wiring cavity.