CN213748605U

CN213748605U - Combined rectifier

Info

Publication number: CN213748605U
Application number: CN202022893383.3U
Authority: CN
Inventors: 肖云巩; 杨龙; 吴克宏
Original assignee: Zhejiang Cangnan Instrument Group Co ltd
Current assignee: Zhejiang Cangnan Instrument Group Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-20
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a modular rectifier, including the cowling panel that sets gradually, connecting piece and honeycomb duct, be equipped with a plurality of rectification hole on the cowling panel, be equipped with the bars piece on the honeycomb duct lateral wall, the bars piece is provided with a plurality of along honeycomb duct circumferencial direction interval, the cowling panel can be dismantled with the connecting piece and be connected, the cowling panel is the plectane, the rectification hole forms the punch combination around centre of a circle circumference interval distribution, the punch combination has a plurality of groups by the outside interval distribution in the centre of a circle, the rectification hole aperture that is located outside punch combination is greater than the rectification hole aperture that is located inboard punch combination, can realize reliable rectification effect, the degree of difficulty of manufacturing process is lower simultaneously, economic nature is good.

Description

Combined rectifier

Technical Field

The utility model relates to a turbine flowmeter's gas flow technical field, in particular to combined rectifier.

Background

The turbine flowmeter belongs to a precision instrument, and when the turbine flowmeter is used, a rectifying device is required to be installed at an air inlet for precision to rectify air flow, wherein the rectifier mainly plays roles of rectifying and accelerating and can convert irregular gas flow entering the flowmeter into regular flow. The gas with uniformly distributed flow velocity acts on the turbine to realize stable operation and accurate metering.

In the prior art, a rectifier used on a large-caliber gas turbine flowmeter is poor in rectification effect under high pressure due to the fact that the size of a part structure is large, and a single-stage rectification structure is partially adopted. On the other hand, the integral forming design has many problems, not only the process difficulty of forming and manufacturing is larger, the quality of blank parts is not ideal, but also the subsequent finish machining is more difficult, and the manufacturing cost is high.

Disclosure of Invention

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a combined rectifier adopts split type processing, and the degree of difficulty of manufacturing process is lower, and manufacturing cost is also lower.

The utility model discloses a modular rectifier, its characterized in that: including the cowling panel that sets gradually, connecting piece and honeycomb duct, be equipped with a plurality of rectification hole on the cowling panel, be equipped with the bars piece on the honeycomb duct lateral wall, the bars piece is provided with a plurality of along honeycomb duct circumferencial direction interval, the cowling panel can be dismantled with the connecting piece and be connected, the honeycomb duct can be dismantled with the connecting piece and be connected, the cowling panel is the plectane, the rectification hole forms the punch combination around the circumference interval distribution in the cowling panel centre of a circle, the punch combination has a plurality of groups by the outside interval distribution in the centre of a circle, the rectification hole aperture that is located outside punch combination is greater than the rectification hole aperture that is located inboard punch combination.

Adopt above-mentioned technical scheme, anomalous air current carries out first step rectification and accelerates through the rectifying hole on the cowling panel, and the air current after the rectification carries out second step rectification through the grid piece on the honeycomb duct, and the rectifier passes through split type processing, and is convenient simple more in the processing, and manufacturing cost is also lower, connects moreover and can be so that more convenient in the installation, and the aperture distribution of rectifying hole can increase the effect of rectification moreover.

The utility model discloses a further setting again: the one end that the connecting piece is close to the cowling panel is equipped with the mounting hole, be equipped with on the cowling panel with the axis body of mounting hole looks adaptation, the axis body is inserted and is established in the mounting hole, the mounting hole bottom is equipped with the mounting panel, wears to be equipped with first bolt on the mounting panel, the axis body is inserted the one end of establishing in the mounting hole and is equipped with the first screw hole rather than screw-thread fit, first bolt extends to first screw hole in rather than screw-thread fit.

Adopt the aforesaid to further set up again, axis body and mounting hole cooperation can lead in the installation for it is more convenient in the installation, when first bolt is inserted and is established and carry out screw-thread fit in first threaded hole, can realize the fixed of connecting piece and cowling panel, when first bolt is followed first threaded hole and is rolled out, can realize that the cowling panel can separate with the connecting piece, relatively more convenient when adjusting through the cooperation of first bolt and first threaded hole rotate the bolt can.

The utility model discloses a further setting again: one end of the connecting piece close to the flow guide pipe is inserted into the flow guide pipe, a second bolt penetrates through the flow guide pipe, a second threaded hole matched with the second bolt is formed in one end, located in the flow guide pipe, of the connecting piece, and the second bolt extends into the second threaded hole to be in threaded fit with the second threaded hole.

Adopt above-mentioned further setting again, can be more convenient in assembly and dismantlement through the cooperation of bolt and screw hole, simple structure processing is also more convenient moreover.

The utility model discloses a further setting again: the grid sheet is provided with an insert block, the guide pipe is provided with an insertion hole, and the insert block is inserted into the insertion hole and welded into a whole.

Adopt above-mentioned further setting again, it is more stable when using, the effect of rectification is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the connector of the present invention;

FIG. 4 is an enlarged view of a portion a of FIG. 2;

FIG. 5 is an enlarged view of a portion b of FIG. 2;

fig. 6 is a side view of the present invention;

fig. 7 is a cross-sectional view taken along a-a of fig. 6.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:

the rectifying plate 1, the connecting piece 2 and the draft tube 3 are coaxially arranged, and one side close to the axis is the inner side.

The utility model discloses a modular rectifier, the utility model discloses in the embodiment, including rectifying plate 1 that sets gradually, connecting piece 2 and honeycomb duct 3, be equipped with a plurality of rectification hole 11 on rectifying plate 1, be equipped with bars piece 31 on the 3 lateral walls of honeycomb duct, bars piece 31 is provided with a plurality of along 3 circumferencial direction intervals of honeycomb duct, rectifying plate 1 can be dismantled with connecting piece 2 and be connected, honeycomb duct 3 can be dismantled with connecting piece 2 and be connected, anomalous air current carries out first step rectification and with higher speed through rectifying plate 1 last rectification hole 11, the air current after the rectification carries out second step rectification through bars piece 31 on honeycomb duct 3, the rectifier passes through split type processing, it is convenient simple more in the time of processing, manufacturing cost is also lower, and it can make more convenient in the installation to connect through connecting piece 2.

One end of the connecting piece 2 close to the rectifying plate 1 is provided with a mounting hole 21, the rectifying plate 1 is provided with a shaft body 12 matched with the mounting hole 21, the shaft body 12 is inserted in the mounting hole 21, the bottom of the mounting hole 21 is provided with a mounting plate 22, the mounting plate 22 is provided with a first bolt 23 in a penetrating way, one end of the shaft body 12 inserted in the mounting hole 21 is provided with a first threaded hole 13 matched with the first bolt 23, the first bolt 23 extends into the first threaded hole 13 to be matched with the first threaded hole in a threaded way, the shaft body 12 and the mounting hole 21 are matched to guide during mounting, so that the installation is more convenient, when the first bolt 23 is inserted into the first threaded hole 13 for threaded fit, the fixing of the connecting piece 2 and the rectifying plate 1 can be realized, when the first bolt 23 is rotated out from the first threaded hole 13, can realize that cowling panel 1 can separate with connecting piece 2, relatively conveniently rotate first bolt 23 when adjusting through the cooperation of first bolt 23 and first screw hole 13 can.

The one end that connecting piece 2 is close to honeycomb duct 3 is inserted and is established in honeycomb duct 3, wear to be equipped with second bolt 32 on the honeycomb duct 3, the one end that connecting piece 2 is located honeycomb duct 3 is equipped with the second screw hole 24 with second bolt 32 looks adaptation, second bolt 32 extend to in the second screw hole 24 rather than screw-thread fit, can be more convenient when assembling and dismantling through the cooperation of bolt and screw hole, simple structure processing is also more convenient moreover.

The rectifying plate 1 is a circular plate, the rectifying holes 11 are distributed at intervals around the circumference of the circle center of the rectifying plate 1 to form hole groups, a plurality of groups are distributed at intervals from the circle center to the outside of the hole groups, the aperture d1 of the rectifying hole 11 positioned in the outer side hole group is larger than the aperture d2 of the rectifying hole 11 positioned in the inner side hole group, and the rectifying effect is better in the rectifying process.

The grid sheet 31 is provided with the insertion block 311, the honeycomb duct 3 is provided with the insertion hole 33, the insertion block 311 is inserted into the insertion hole 33 and welded into a whole, the welding can be performed in the honeycomb duct 3 when the insertion block 311 is inserted into the insertion hole 33, the use is more stable, and the rectification effect is better.

Claims

1. A modular rectifier, characterized by: including the cowling panel that sets gradually, connecting piece and honeycomb duct, be equipped with a plurality of rectification hole on the cowling panel, be equipped with the bars piece on the honeycomb duct lateral wall, the bars piece is provided with a plurality of along honeycomb duct circumferencial direction interval, the cowling panel can be dismantled with the connecting piece and be connected, the honeycomb duct can be dismantled with the connecting piece and be connected, the cowling panel is the plectane, the rectification hole forms the punch combination around the circumference interval distribution in the cowling panel centre of a circle, the punch combination has a plurality of groups by the outside interval distribution in the centre of a circle, the rectification hole aperture that is located outside punch combination is greater than the rectification hole aperture that is located inboard punch combination.

2. The modular rectifier of claim 1, wherein: the one end that the connecting piece is close to the cowling panel is equipped with the mounting hole, be equipped with on the cowling panel with the axis body of mounting hole looks adaptation, the axis body is inserted and is established in the mounting hole, the mounting hole bottom is equipped with the mounting panel, wears to be equipped with first bolt on the mounting panel, the axis body is inserted the one end of establishing in the mounting hole and is equipped with the first screw hole rather than screw-thread fit, first bolt extends to first screw hole in rather than screw-thread fit.

3. A combined rectifier according to claim 1 or 2, wherein: one end of the connecting piece close to the flow guide pipe is inserted into the flow guide pipe, a second bolt penetrates through the flow guide pipe, a second threaded hole matched with the second bolt is formed in one end, located in the flow guide pipe, of the connecting piece, and the second bolt extends into the second threaded hole to be in threaded fit with the second threaded hole.

4. The modular rectifier of claim 3 wherein: the grid sheet is provided with an insert block, the guide pipe is provided with an insertion hole, and the insert block is inserted into the insertion hole and welded into a whole.