CN213274405U

CN213274405U - Gas mass flow instrument

Info

Publication number: CN213274405U
Application number: CN202022568329.1U
Authority: CN
Inventors: 余轩
Original assignee: Warwick Instruments Zhuhai Co ltd
Current assignee: Warwick Instruments Zhuhai Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-05-25
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a gas mass flow instrument, including the gauge outfit, installation pipe and measuring probe, one side of gauge outfit is equipped with the display screen, and the both sides that the gauge outfit is close to the display screen are equipped with the junction tube, and the one end of junction tube is fixed in the gauge outfit both sides, and the inside of junction tube is equipped with connecting wire, and the bottom of gauge outfit is equipped with the connecting pipe, and the bottom of connecting pipe is equipped with the insert tube, and the periphery of insert tube is equipped with the sound-proof housing, and the sound-proof housing is equipped with the stopper with the bottom of the junction of insert tube, the top and the. The utility model discloses a sound-proof housing that is equipped with, cooperation damping fin, when using, the air current of flow meter and pipe connection port department strikes and can produce certain noise pollution, and the noise that air current strikes and produces in the pipeline is absorbed through damping fin, reduces the noise influence that the air current strikes, and rethread sound-proof housing will flow meter and pipe connection port department and external separation for the noise does not send and reaches the outside, reaches effectual syllable-dividing effect.

Description

Gas mass flow instrument

Technical Field

The utility model relates to a gas quality detection field specifically is a gas mass flow meter.

Background

The gas mass flowmeter is widely applied in various industries, and is mostly a thermal gas mass flowmeter, and the principle is based on a thermal diffusion principle, namely, when fluid flows through a heating object, the heat loss of the heating object is in a certain proportional relation with the flow of the fluid. Specifically, the sensor of the flowmeter has two standard-grade temperature detectors, one is used as a heat source, the other is used for measuring the temperature of the fluid, when the fluid flows through, the heat loss of the heat source and the flow rate are in a nonlinear relation, and the thermal mass type gas mass flowmeter can convert the relation into a linear output of a measuring flow rate signal.

At present, when the inserted bar of current flowmeter received the pressure effect in the pipeline, very easy not hard up and break away from the pipeline, whole installation stability is poor, causes the potential safety hazard to the air current impact of flowmeter and pipeline connection port department can produce certain noise pollution. We have therefore improved this and have proposed a gas mass flow meter.

SUMMERY OF THE UTILITY MODEL

For solving the defect that prior art exists, the utility model provides a gas mass flow meter.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a gas mass flow meter, including gauge outfit, installation pipe and measuring probe, one side of gauge outfit is equipped with the display screen, the display screen is inlayed inside the casing of gauge outfit, the both sides that the gauge outfit is close to the display screen are equipped with the wiring pipe, the one end of wiring pipe is fixed in the gauge outfit both sides, the inside of wiring pipe is equipped with connecting wire, the bottom of gauge outfit is equipped with the connecting pipe, screw and gasket and gauge outfit sealing connection that are equipped with are passed through at the top of connecting pipe, the bottom of connecting pipe is equipped with the insert tube, the top sealing connection of connecting pipe and insert tube, the periphery of insert tube is equipped with the sound-proof housing, sound-proof housing and insert tube fixed connection, the bottom of sound-proof housing with the junction of insert tube is equipped with the stopper, the top and the sound-proof housing.

As a preferred technical scheme of the utility model, the inside of sound-proof housing is equipped with the installation pipe, the bottom of installation pipe is equipped with surveys buret, survey the periphery top of buret and pass through welded mode fixed connection with the installation pipe.

As a preferred technical scheme of the utility model, the insert tube passes the sound-proof housing and installs the inside that the pipe extends to survey buret, survey buret and insert tube's junction is equipped with the sealing washer.

As an optimal technical scheme of the utility model, survey the both ends of buret and be equipped with the go-between, the both ends fixed connection of go-between and survey buret.

As a preferred technical scheme of the utility model, threaded hole is seted up to the both sides of go-between, the screw hole pierces through the both sides of go-between, the inside of surveying buret is equipped with the damping piece, damping piece and go-between laminating.

As a preferred technical scheme of the utility model, the bottom of insert tube is equipped with measuring probe, measuring probe's top and insert tube fixed connection, measuring probe is connected with the gauge outfit through the inside wire that is equipped with of insert tube.

As a preferred technical scheme of the utility model, the bottom of surveying buret is equipped with the locating piece, the top and the surveying buret fixed connection of locating piece, the both sides of locating piece are equipped with the screw.

As a preferred technical scheme of the utility model, the inside locating pin bolt that is equipped with of screw of locating piece both sides, locating pin bolt is through the screw thread and the locating piece screwed connection who is equipped with.

The utility model has the advantages that: the gas mass flowmeter is strong in integral installation stability, the inserting pipe cannot be loosened and is separated from a pipeline, the flowmeter is installed at the top of the measuring pipe through the installed installing pipe, the installation stability of the flowmeter is guaranteed through the welding stability of the installing pipe and the measuring pipe, the inserting pipe is enabled to move between the limiting blocks through the arranged limiting blocks, the inserting pipe cannot be influenced by the gas impact force of the measuring probe after being adjusted up and down, the inserting pipe can be stably connected with the measuring pipe, the shaking phenomenon cannot occur, the stability of the flowmeter during working is guaranteed, the sound-proof cover and the damping sheet are arranged, when the gas mass flowmeter is used, certain noise pollution can be generated due to the gas impact at the end of the connecting pipe of the flowmeter and the pipeline, noise generated by the gas impact in the damping sheet pipeline is absorbed, and the noise influence of the gas impact is reduced, then the flow meter and the pipeline connecting port are separated from the outside through the sound-proof cover, so that noise is not transmitted to the outside, and an effective sound-proof effect is achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a gas mass flow meter according to the present invention;

FIG. 2 is a schematic view of the internal structure of a gas mass flow meter according to the present invention;

fig. 3 is a schematic view of a multi-angle structure of the gas mass flow meter of the present invention.

In the figure: 1. a gauge head; 2. a display screen; 3. a wire connecting pipe; 4. a connecting pipe; 5. an insertion tube; 6. a sound-proof housing; 7. a limiting block; 8. installing a pipe; 9. a connecting ring; 10. a threaded hole; 11. damping fins; 12. a measuring probe; 13. a measurement tube; 14. positioning blocks; 15. positioning a pin bolt; 16. and (5) sealing rings.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figure 1, figure 2 and figure 3, the utility model relates to a gas mass flow meter, which comprises a meter head 1, an installation tube 8 and a measuring probe 12, wherein one side of the meter head 1 is provided with a display screen 2, the display screen 2 is embedded in the shell of the meter head 1, both sides of the meter head 1 close to the display screen 2 are provided with wiring tubes 3, one end of each wiring tube 3 is fixed on both sides of the meter head 1, the inside of each wiring tube 3 is provided with a connecting wire, the bottom of the meter head 1 is provided with a connecting tube 4, the top of the connecting tube 4 is hermetically connected with the meter head 1 through a screw and a gasket, the bottom of the connecting tube 4 is provided with an insertion tube 5, the connecting tube 4 is hermetically connected with the top of the insertion tube 5, the periphery of the insertion tube 5 is provided with a sound-proof cover 6, the sound-proof cover 6 is fixedly connected with the insertion tube 5, the bottom of the joint of the sound-proof cover 6, through the sound-proof housing 6 that is equipped with, cooperation damping fin 11, when using, the air current of flow meter and pipeline connection port department strikes and can produce certain noise pollution, and the noise that produces is strikeed to the air current in the pipeline through damping fin 11 absorbs, reduces the noise influence that the air current strikes, and rethread sound-proof housing 6 is with flow meter and pipeline connection port department and external separation for the noise does not send and reaches the outside, reaches effectual syllable-dividing effect.

Wherein, the inside of sound-proof housing 6 is equipped with installation pipe 8, and the bottom of installation pipe 8 is equipped with surveys buret 13, surveys buret 13's periphery top and installation pipe 8 and passes through welded mode fixed connection, through surveying buret 13's periphery top and installation pipe 8 and pass through welded mode fixed connection, realizes the stability of installation pipe (8), makes it can provide better stability to insert pipe 5.

Wherein, the inside that the insert tube 5 passed sound-proof housing 6 and installation pipe 8 and extended to survey buret 13, the junction of surveying buret 13 and insert tube 5 is equipped with sealing washer 16, through the sealing washer 16 that is equipped with for survey the connection between buret 13 and the insert tube 5 inseparabler, reduce the propagation of noise.

Wherein, survey the both ends of buret 13 and be equipped with go-between 9, go-between 9 and survey both ends fixed connection of buret 13, through the go-between 9 that is equipped with, realize flow meter and pipe connection to reach the measuring purpose.

Wherein, threaded hole 10 has been seted up to the both sides of go-between 9, and threaded hole 10 pierces through the both sides of go-between 9, and the inside of surveying buret 13 is equipped with damping fin 11, and damping fin 11 and the laminating of go-between 9 realize the absorption to the noise through the damping fin 11 that is equipped with, reduce the propagation of noise.

Wherein, the bottom of the insertion tube 5 is provided with a measuring probe 12, the top of the measuring probe 12 is fixedly connected with the insertion tube 5, the measuring probe 12 is connected with the gauge outfit 1 through a lead arranged in the insertion tube 5, and the main measuring function of the instrument is realized through the measuring probe 12.

Wherein, survey the bottom of buret 13 and be equipped with locating piece 14, the top of locating piece 14 with survey buret 13 fixed connection, the both sides of locating piece 14 are equipped with the screw, through the locating piece 14 that is equipped with, realize when measuring, to the fixed action of instrument for the instrument can be in a stable running state.

Wherein, the inside locating pin bolt 15 that is equipped with of screw at locating piece 14 both sides, locating pin bolt 15 through the screw thread that is equipped with locating piece 14 screwed connection, through locating pin bolt 15 that is equipped with, cooperation locating piece 14 realizes when measuring, to the fixed action of instrument for the instrument can be in a stable running state.

During operation, the flowmeter is installed at the top of the measuring pipe 13 through the installation pipe 8, the stability of welding between the installation pipe 8 and the measuring pipe 13 is ensured, the insertion pipe 5 is moved between the limiting blocks 7 through the limiting blocks 7, the insertion pipe 5 is not influenced by the gas impact force of the measuring probe 12 after being adjusted up and down, the insertion pipe can be stably connected with the measuring pipe 13, the phenomenon of shaking is avoided, the stability of the flowmeter during operation is ensured, the sound-proof cover 6 and the shock absorption damping sheet 11 are arranged, when in use, certain noise pollution can be generated by the air flow impact at the connection port of the flowmeter and the pipeline, the noise generated by the air flow impact in the pipeline is absorbed through the shock absorption damping sheet 11, the noise influence of the air flow impact is reduced, and then the connection port of the flowmeter and the pipeline is connected with the external flowmeter and blocked through the sound-proof cover 6, make the noise not send and pass to the outside, reach effectual syllable-dividing effect, carry out flow measurement through measuring probe 12 to the gas in the pipeline, transmit gauge outfit 1 through the wire that insert 5 inside were equipped with the response data, handle the analysis by data in the gauge outfit 1 again, demonstrate the measured data through display screen 2 at last.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The gas mass flow meter comprises a meter head (1), an installation tube (8) and a measuring probe (12), and is characterized in that one side of the meter head (1) is provided with a display screen (2), the display screen (2) is embedded in the shell of the meter head (1), the two sides of the meter head (1) close to the display screen (2) are provided with wiring tubes (3), one ends of the wiring tubes (3) are fixed on the two sides of the meter head (1), the inside of the wiring tubes (3) is provided with connecting wires, the bottom of the meter head (1) is provided with a connecting tube (4), the top of the connecting tube (4) is in sealing connection with the meter head (1) through screws and gaskets, the bottom of the connecting tube (4) is provided with an insertion tube (5), the connecting tube (4) is in sealing connection with the top of the insertion tube (5), and the periphery of the insertion tube (5) is provided with a sound-proof cover (6), sound-proof housing (6) and stand-in tube (5) fixed connection, the bottom of sound-proof housing (6) and the junction of stand-in tube (5) is equipped with stopper (7), the top and sound-proof housing (6) fixed connection of stopper (7).

2. A gas mass flow meter according to claim 1, wherein the sound-proof housing (6) is internally provided with a mounting tube (8), the bottom of the mounting tube (8) is provided with a measuring tube (13), and the top of the outer periphery of the measuring tube (13) is fixedly connected with the mounting tube (8) by welding.

3. A gas mass flow meter according to claim 1, wherein the insert tube (5) extends through the sound-proof housing (6) and the mounting tube (8) to the inside of the measuring tube (13), and wherein the connection between the measuring tube (13) and the insert tube (5) is provided with a sealing ring (16).

4. A gas mass flow meter according to claim 3, wherein the measuring tube (13) is provided with connecting rings (9) at both ends, the connecting rings (9) being fixedly connected to both ends of the measuring tube (13).

5. A gas mass flow meter according to claim 4, wherein threaded holes (10) are opened at both sides of the connection ring (9), the threaded holes (10) penetrate through both sides of the connection ring (9), and the measuring tube (13) is provided with damping fins (11) inside, and the damping fins (11) are attached to the connection ring (9).

6. A gas mass flow meter according to claim 1, wherein the bottom of the insertion tube (5) is provided with a measuring probe (12), the top of the measuring probe (12) is fixedly connected with the insertion tube (5), and the measuring probe (12) is connected with the gauge outfit (1) through a conducting wire arranged inside the insertion tube (5).

7. A gas mass flow meter according to claim 2, wherein the bottom of the measuring tube (13) is provided with a positioning block (14), the top of the positioning block (14) is fixedly connected with the measuring tube (13), and both sides of the positioning block (14) are provided with screw holes.

8. A gas mass flow meter according to claim 7, wherein the positioning block (14) is provided with a positioning pin (15) in the screw holes at both sides thereof, and the positioning pin (15) is screwed with the positioning block (14) by means of the screw thread provided therein.