CN208155366U

CN208155366U - Preceding baffle on gas flowmeter

Info

Publication number: CN208155366U
Application number: CN201820744812.0U
Authority: CN
Inventors: 裴举胜; 夏成松
Original assignee: WENZHOU FUXIN INSTRUMENT CO Ltd
Current assignee: WENZHOU FUXIN INSTRUMENT CO Ltd
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2018-11-27
Anticipated expiration: 2028-05-18

Abstract

The utility model discloses the preceding baffles on a kind of gas flowmeter, including tubular body, one end of tubular body is equipped with the bullet of hollow setting, angle between the circumferential surface and tubulose body axis of bullet is not more than 45 °, the outer wall circular of tubular body is evenly equipped with fin plate, the outside of tubular body is additionally provided with mounting ring, it is connected at the top of mounting ring inner wall and fin plate, the inner hole of mounting ring is divided into several ventholes by fin plate, the section of fin plate is in isosceles triangle, the waist edge of the isosceles triangle is arc-shaped, the height of the isosceles triangle is gradually increased along the length direction of fin plate.Just reach that structure is reliable, resistance is small and finely dispersed technical effect in this way.

Description

Preceding baffle on gas flowmeter

Technical field

The utility model relates to the components on a kind of gas flowmeter, and in particular to the preceding water conservancy diversion on a kind of gas flowmeter Body.

Background technique

Gas flowmeter is mainly used for air in industrial pipeline, nitrogen, oxygen, hydrogen, biogas, natural gas, and steam etc. is situated between The flow measurement of mass flow body, in Test Cycle volume flow hardly by parameters such as fluid density, pressure, temperature, viscosity It influences, cardinal principle is the revolving speed that gas flow rate is converted to turbine, then secondary speed is converted into the electricity directly proportional to flow Signal shows corresponding flow information after receiving the Electric signal processing by integrating instrument.

Gas flow has circulation road for gas to pass through, can be equipped with preceding baffle in the front end of the circulation road, this is leading The effect of fluid is exactly that gas uniformly spreads out, and so that gas is formed annular and passes through, and existing preceding baffle is for gas The resistance of body is larger, and deceleration is had when gas being caused to flow through circulation road, leads to the not accurate of measurement.

Summary of the invention

To solve the above problems, that the purpose of this utility model is to provide a kind of structures is reliable, resistance is small and dispersion is equal Preceding baffle on even gas flowmeter.

To achieve the above object, the utility model provides following technical solution：A kind of preceding water conservancy diversion on gas flowmeter Body, including tubular body, one end of the tubular body are equipped with the bullet of hollow setting, the circumferential surface of the bullet and the pipe Angle between shape body axis is not more than 45 °, and the outer wall circular of the tubular body is evenly equipped with fin plate, the outside of the tubular body It is additionally provided with mounting ring, is connected at the top of the mounting ring inner wall and the fin plate, the fin plate is by the installation The inner hole of ring is divided into several ventholes, and the section of the fin plate is in isosceles triangle, the waist edge of the isosceles triangle To be arc-shaped, the height of the isosceles triangle is gradually increased along the length direction of the fin plate.

The length of the mounting ring is greater than the 1/2 of the tubulose body length.

Mounting ring, fin plate, bullet and the tubular body is integrated aluminium die cast.

When the air-flow of pencil passes through, the inner hole of mounting ring is flowed to along the outer wall of bullet for this structure of the utility model, The fin plate of mounting ring inner hole can effectively reduce resistance in cutting steam, so that air-flow is separated to come along venthole, ensure that Smoothness that gas flows through, harmony, to guarantee the accurate of measurement, just reached that structure is reliable, resistance is small in this way and point Dissipate uniform technical effect.

The utility model is further described with reference to the accompanying drawings and detailed description.

Detailed description of the invention

Fig. 1 is the cross-sectional view of specific embodiment of the present invention；

Fig. 2 is the side view of specific embodiment of the present invention.

Specific embodiment

The utility model is specifically described below by embodiment, is served only for carrying out the utility model further Illustrate, should not be understood as the restriction to scope of protection of the utility model.

As shown in Figure 1 and Figure 2, present embodiment discloses the preceding baffle on a kind of gas flowmeter, including tubular body 1, pipes One end of shape body 1 is equipped with the bullet 2 of hollow setting, and the angle between 1 axis of circumferential surface and tubular body of bullet 2 is not more than 45 °, the outer wall circular of tubular body 1 is evenly equipped with 16 fin plates 3, and the outside of tubular body 1 is additionally provided with mounting ring 4,4 inner wall of mounting ring Be connected at the top of fin plate 3, the inner hole of mounting ring 4 is divided into 16 ventholes 5 by fin plate 3, the section of fin plate 3 in etc. Lumbar triangle shape, the waist edge of the isosceles triangle be it is arc-shaped, the height of the isosceles triangle along fin plate 3 length direction gradually Increase.

The length of mounting ring 4 is greater than the 1/2 of 1 length of tubular body, mounting ring 4, fin plate 3, bullet 2 and tubular body 1 It is integrated aluminium die cast.Such design can make structure relatively reliable, can be more reliable and more stable when gas flows through, and further mention High reliability of structure.

This structure of the utility model, when the air-flow of pencil passes through, the outer wall along bullet 2 is flowed in mounting ring 4 Hole, the fin plate 3 of 4 inner hole of mounting ring can effectively reduce resistance in cutting steam, so that air-flow is separated to come along venthole 5, It ensure that smoothness, harmony that gas flows through, to guarantee the accurate of measurement, just reached that structure is reliable, resistance is small in this way And finely dispersed technical effect.

Claims

1. the preceding baffle on a kind of gas flowmeter, it is characterised in that：Including tubular body, during one end of the tubular body is equipped with The bullet of sky setting, the angle between the circumferential surface of the bullet and the tubulose body axis are not more than 45 °, the tubulose The outer wall circular of body is evenly equipped with fin plate, and the outside of the tubular body is additionally provided with mounting ring, the mounting ring inner wall with it is described Fin plate at the top of be connected, the inner hole of the mounting ring is divided into several ventholes, the fish by the fin plate The section of fin keel is in isosceles triangle, the waist edge of the isosceles triangle be it is arc-shaped, the height of the isosceles triangle is along the fish The length direction of fin keel is gradually increased.

2. the preceding baffle on gas flowmeter according to claim 1, it is characterised in that：The length of the mounting ring Greater than the 1/2 of the tubulose body length.

3. the preceding baffle on gas flowmeter according to claim 1, it is characterised in that：The mounting ring, fin Plate, bullet and tubular body are integrated aluminium die cast.