KR100605049B1 - A turbine flow-meter - Google Patents

Abstract

It is an object of the present invention to provide a mechanical turbine flowmeter which enables to perform flow measurement accurately and to perform an assembly and disassembly process very easily.

The present invention for achieving the above object, the flow meter body is provided with a flange portion at both ends to be connected to the pipe, the flow path passage through which both ends are formed; A rotating body provided with a plurality of blades on an outer circumferential surface, one end of which supports a protruding portion, and the other end of which a worm gear protrudes; An outer wall surface is inserted into contact with the inner wall surface of the passage passage, and a through-cylindrical cylinder having both ends having support means for rotatably supporting the worm gear by embedding the rotating body; And a supporter inserted into the inner wall surface of the flow path to rotatably support the support of the rotating body, and communicating with the outer surface of the flowmeter body perpendicular to the worm gear in a direction perpendicular to the flow path. The mounting part having a communication path to be protruded is formed, and in the communication path of the mounting part is provided with a rotating shaft installed in the lower end to the worm gear and the gear through the cylinder and the support means coupled to the worm gear is fixed to the mounting portion Characterized in that it comprises a measuring means.

Machinery, turbine, flow meter

Description

Mechanical turbine flow meter

1A is an exploded perspective view of the prior art;

1B is a sectional view showing a state where a conventional measuring instrument is inserted into a main body.

1C is a cross-sectional view of the prior art.

2 is a cross-sectional view showing the internal configuration of a mechanical turbine flowmeter according to the present invention.

3 is an exploded perspective view showing a state in which a rotating shaft of the measuring means is assembled in a cylinder in which the rotating body of the present invention is incorporated;

4 is a cross-sectional view taken along line “A-A” of FIG. 3, showing a state in which a worm of a rotating shaft is coupled to a worm gear of a rotating body installed in the cylinder of the present invention.

Fig. 5 is a sectional view taken along the line “B-B” of Fig. 3, showing a state in which the worm of the rotating shaft of the present invention is gear-coupled with the worm gear of the rotating body provided in the cylinder.

Fig. 6 is a sectional view taken along the line “B-B” of Fig. 2, and is a sectional view of the supporter provided in the flowmeter main body of the present invention.

<Description of the symbols for the main parts of the drawings>

100: flow meter body

110: flange portion

120: euro passage

200: rotating body

210: blade

220: support

230: Worm Gear

300: cylinder

310: support means

400: supporter

The present invention relates to a mechanical turbine flowmeter, and more particularly, to a mechanical turbine flowmeter that makes it possible to perform the flow measurement accurately and to perform the assembly and disassembly process very easily.

In general, the flow meter is to accurately measure the amount of fluid used in water supply and sewage and other industrial applications, such as the number of flow rate of the fluid passing through the fluid pipe is installed between the pipes spaced at regular intervals This type of flow meter is known in various ways depending on its structure and is widely used in practice.

As a prior art of such various flowmeters, there is a utility model publication No. 1985-0003465 published by the utility model application filed on October 13, 1983, Kumho Electric Co., Ltd.

As shown in FIGS. 1A, 1B, and 1C, the rotor blade 2 having the worm 3 formed therein and the pivot shaft 13 having the worm gear 14 integrally installed therein as shown in FIGS. In the configuration of the measuring unit 4, the support hole 12 and the vane support pin 16 are formed integrally with each other so as to fasten the adjusting shaft 11 of the pivot shaft 13 below the body 6. In order to install the rotating shaft 13 integrally with the worm gear 14, in front of it, the rotary vane 2 having the worm 3 and the support 7 having the radial guide 8 formed thereon. It is installed, but the rotary vane (2) is installed on the support shaft (9) and the support pin (16), and the measurement unit (4) is installed on the upper part of the body (6) so as to be connected to the pivot shaft (13). 5), the assembled and integrated measuring instrument 5 is inserted from the upper portion of the main body 1 to be coupled to the main body 1, and reference numeral 15 denotes a fastening bolt.

However, the prior art configured as described above has the following problems.

First, in the prior art, the measuring mechanism 5 having the rotary vane 2 integrally provided on the main body 6 is connected to the main body 1 in the order of FIGS. 1A-> 1B-> 1C. After the measuring mechanism 5 and the main body 1 have been assembled together, a radial guide 8 integrally formed with the main body 6 is shown in FIG. 1C on the inner wall surface of the main body 1. It must be completely intact as shown.

However, in the prior art, since the main body 1 is made of a casting, it cannot be manufactured precisely.

That is, when the inner wall shape of the main body 1 is formed in the shape of a wooden mold (including an AL mold and a water mold), the inner wall surface shape of the main body 1 may be changed or deformed during molding and casting. It often occurs, which prevents the guide 8 of the measuring instrument 5 from contacting the inner wall surface of the main body 1.

In this case, all of the fluid flowing inside the main body 1 does not pass through the rotary vane 2 through the guide 8, and a part of the vortex flows when the fluid flows between the guide 8 and the inner wall surface of the main body 1. And the fluid falls between these gaps, resulting in an inconsistent fluid flow resulting in fluctuations in the flow rate.

As described above, there was a problem that accurate flow rate measurement cannot be performed due to irregular flow of fluid between the guide 8 and the inner wall surface of the main body 1.

Secondly, the measuring mechanism 5 having the rotary vane 2 integrally provided on the main body 6 is stored inside the main body 1 in the order of FIGS. 1A-> 1B-> 1C of the main body 1. In addition, there is a problem that it is not easy to assemble and dismantle because it is installed, and because the shape of the inside of the main body 1 is not fixed, even if the inner surface of the main body 1 is processed to compensate for this, the measuring instrument 5 is precise. It is often difficult to assemble because it is difficult to accurately measure the flow rate.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a mechanical turbine flowmeter which can perform flow rate measurement accurately and can perform the assembly and disassembly process very easily.

The present invention for achieving the above object, the flow meter body is provided with a flange portion at both ends to be connected to the pipe, the flow path passage through which both ends are formed; A rotating body provided with a plurality of blades on an outer circumferential surface, one end of which supports a protruding portion, and the other end of which a worm gear protrudes; An outer wall surface is inserted into contact with the inner wall surface of the passage passage, and a through-cylindrical cylinder having both ends having support means for rotatably supporting the worm gear by embedding the rotating body; And a supporter inserted into the inner wall surface of the flow path to rotatably support the support of the rotating body, and communicating with the outer surface of the flowmeter body perpendicular to the worm gear in a direction perpendicular to the flow path. The mounting part having a communication path to be protruded is formed, and in the communication path of the mounting part is provided with a rotating shaft installed in the lower end to the worm gear and the gear through the cylinder and the support means coupled to the worm gear is fixed to the mounting portion Characterized in that it comprises a measuring means.

Hereinafter, a preferred embodiment of the mechanical turbine flowmeter according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a cross-sectional view showing the internal configuration of the mechanical turbine flowmeter according to the present invention, Figure 3 is an exploded perspective view showing a state in which the rotating shaft of the measuring means is assembled to a cylinder containing the rotating body of the present invention, Figure 4 3 is a cross-sectional view of the leader line "AA" in FIG. 3 showing a state in which the worm of the rotating shaft is coupled to the worm gear of the rotating body installed in the cylinder of the present invention, and FIG. 5 is a cross-sectional view of the leader line "BB" in FIG. Is a cross-sectional view showing a state in which the worm of the rotary shaft of the present invention is geared with the worm gear of the rotating body installed in the cylinder, and FIG. 6 is a sectional view of the line “BB” of FIG. The installation section of the.

The mechanical turbine flowmeter according to the present invention includes a flowmeter body 100, a rotating body 200, a cylinder 300, and a supporter 400.

The flowmeter body 100 is provided with a flange portion 110 at both ends to be connected to the pipe, there is formed a flow path passage 120 through both ends therein.

The rotating body 200 is provided with a plurality of blades 210 on the outer circumferential surface, the support portion 220 protrudes on one end, and the worm gear 230 protrudes on the other end.

The cylinder 300 is inserted while the outer wall surface is in contact with the inner wall surface of the passage passage 120, the support means for rotatably supporting the worm gear 230 by rotatably embedded the rotor 200 310 is provided.

The support means 310, as shown in Figure 3, is disposed in the central portion of the cylinder 300 and the hemispherical support sphere 311 is empty inside to rotatably support the worm gear 230 and The bridge 312 connects the supporter 311 and the cylinder 300.

The supporter 400 is inserted while contacting the inner wall surface of the flow path passage 120 to rotatably support the support part 220 of the rotating body 200.

As shown in FIG. 6, the supporter 400 includes a central shaft portion 411, a circular ring portion 412 contacting an inner wall surface of the main body 100, the central shaft portion 411, and a circular ring portion 412. ) Is composed of a bridge portion 413 for integrally connecting.

Here, reference numeral 411a is a shaft portion which extends from the central shaft portion 411 and is inserted into the rotation support hole 220a formed in the support portion 220 of the rotating body 200.

On the other hand, the present invention further includes a mounting unit 130, the measuring means 500, and communication path matching means.

As shown in FIG. 2, the mounting unit 130 protrudes from an outer surface of the flowmeter main body 100 corresponding to the worm gear 230 in a vertical direction to communicate perpendicularly to the flow path passage 120. The communication path 131 is provided.

The measuring means 500, through the through hole (301, 302) formed perpendicular to the cylinder 300 and the support means 310 in the communication path 131 of the mounting portion 130 and the worm The helical gear 532 is provided with a rotating shaft 510 installed at the lower end to be geared to the gear 230 and fixed to the mounting unit 130.

Here, the through hole 301 is formed in the support 311, the through hole 302 is formed in the cylinder 300.

The rotating shaft 510 is provided in the measuring means 500 to be rotatably installed, the first rotating shaft 520 provided with a first magnet 521 at an end thereof, and the helical gear 532 at a lower end thereof. And a second rotating shaft 530 having a second magnet 531 installed at the upper end thereof to have the same polarity as that of the first magnet 521 and maintaining a predetermined gap therebetween, and the first rotating shaft 520. ) Is provided in the measuring means 500, and the second rotating shaft 530 is provided in the mounting portion 130.

The communication path coinciding means serves to allow the cylinder 300 to be inserted into the passage passage 120 to a position where the communication path 131 and the through hole 301 and 302 vertically coincide with each other. .

The communication path coinciding means includes a stepped part 610 which is formed so that the inner circumferential surface of the flow path passage 120 is stepped from one end to a predetermined depth.

Here, reference numeral 600 denotes a housing that protects the second rotation shaft 530 of the rotation shaft 510, and the housing 600 is inserted into the above-described through holes 301 and 302 and is in the communication path 131. Is also inserted.

In addition, reference numeral 700 denotes a member interposed between the magnets 521 and 531 when the rotary shaft 510 is separated into two first and second rotary shafts 520 and 530. Leakage preventing member to block the leakage with the (500).

Reference numeral 710 denotes a bolt that is a fastening means for connecting the flange portion 501 and the mounting portion 130 of the measurement means 500.

Referring to the assembly process of the present invention configured as described above are as follows.

First, the rotor 200 is inserted into the cylinder 300, and the worm gear 230 of the rotor 200 is rotatably supported by the support means 310.

As described above, the cylinder 300 in which the rotating body 200 is built is inserted into the flow path passage 120 of the flowmeter main body 100.

That is, the outer surface of the cylinder 300 and the inner circumferential surface of the flow meter body 100 are inserted while contacting each other.

When the cylinder 300 is inserted up to the stepped portion 610 which is a communication path matching means, the cylinder 300 is no longer inserted and the insertion is completed.

In this case, the communication portion 131 of the mounting portion 130 and the through holes 301 and 302 formed in the cylinder 300 are in a state of being vertically aligned.

In the above state, the supporter 400 is inserted into the flowmeter main body 100.

In this case, the shaft portion 411a formed in the central shaft portion 411 constituting the supporter 400 is rotatably supported by the rotation support hole 220a formed in the support portion 220 of the rotating body 200, and eventually the supporter 400. The rotor 200 is supported by the horizontal state 400.

Next, the release prevention ring 420 is screwed so that the supporter 400 is not separated out of the flowmeter body 100.

In the above state, the process of finally installing the measuring means 500 is performed.

The process of installing the measuring means 500 is as follows.

First, the helical gear of the second rotary shaft 530 is inserted into the through hole 301 and 302 formed in the cylinder 300 through the communication path 131. 532 is gear-coupled to the worm gear 230 of the rotating body (200).

Thereafter, the leakage preventing member 700 is placed on the mounting unit 130, the measurement means 500 is placed on the leakage preventing member 700, and then fixed by a bolt 710.

In this case, the magnet 531 installed at the upper end of the second rotation shaft 530 maintains a constant gap up and down with the magnet 521 of the first rotation shaft 520 provided in the measuring means 500.

In this case, when the first and second rotation shafts 520 and 530 are integrally provided, the magnets 521 and 531 do not need to be separately provided.

When the assembly is completed as described above, when the fluid flows into the flow path passage 120 of the flow meter body 100, the fluid to rotate the rotating body 200 by the resistance of the blade 210 of the rotating body 200 The worm gear 230 is rotated by the rotation of the rotor 200, and the helical gear 532 is rotated by the rotation of the worm gear 230.

As a result, when the helical gear 532 is rotated, the second rotation shaft 530 is rotated together with the magnet 531.

When the magnet 531 of the second rotation shaft 530 is rotated, the magnetic force of the magnet 531 affects the magnet 521 formed at the lower end of the first rotation shaft 520, so that the magnet 521 is rotated. As a result, the first rotation shaft 520 is rotated.

As the first rotation shaft 520 is rotated, the usage means is displayed by the number in the measuring means 500.

Here, the measuring means 500 is composed of a mechanical type, not electronic, detailed internal configuration thereof will be omitted because it is a commonly known technique.

On the other hand, the disassembly process of the present invention is to proceed in the reverse order of the assembly process, the description thereof will be omitted.

On the other hand, the present invention is completed by lathe machining the inner wall surface of the flow path body 120 of the flowmeter main body 100 to have a very precise and constant inner diameter, in this case, of the cylindrical body 300 is provided with a rotating body 200 The outer surface is inserted into the inner surface of the flowmeter body 100 very smoothly.

That is, since the inner surface of the flowmeter main body 100 and the outer surface of the cylinder 300 are in intimate contact with each other, fluid does not fall between them or vortices occur.

Therefore, the fluid passes through the inside of the rotating body 200 and the cylinder 300 only, and a very accurate flow rate measurement can be performed.

Further, in the present invention, since the flow path 120 of the flow meter body 100 is in a straight line, the resistance to fluid flow can be greatly reduced, and since the fluid can also flow in a complete straight line, the flow rate can be measured with high accuracy. have.

As described above, according to the mechanical turbine flow meter according to the present invention, it is possible to accurately perform the flow rate measurement and to perform the assembly and disassembly process very easily.

Claims (3)

A flow meter body 100 having a flange portion 110 at both ends to be connected to the pipe, and having a flow passage 120 through which both ends are formed; A plurality of blades 210 are provided on an outer circumferential surface thereof, a support part 220 protrudes at one end thereof, and a rotator 200 at which the worm gear 230 protrudes at another end thereof; The outer wall surface is inserted into contact with the inner wall surface of the passage passage 120, and the support member 310 is rotatably embedded to support the worm gear 230 by rotatably embedded the rotor 200. A cylindrical body 300 having both ends of the through shape; A supporter 400 inserted into and in contact with an inner wall surface of the flow passage 120 to rotatably support the support part 220 of the rotating body 200, Mounting unit 130 having a communication path 131 is formed to protrude on the outer surface of the flow meter body 100 corresponding to the worm gear 230 in a vertical direction and communicate with the flow path passage 120 at right angles; ; In the communication path 131 of the mounting portion 130, through the through-holes (301, 302) perpendicular to the cylinder 300 and the support means 310 to be coupled to the worm gear 230 and gears A measuring means 500 having a rotating shaft 510 provided with a helical gear 532 at a lower end thereof and fixedly installed to the mounting unit 130; And a communication path matching means for inserting the cylinder 300 into the passage passage 120 to a position where the communication path 131 and the through hole 301 and 302 are vertically aligned. Mechanical turbine flowmeter. The method of claim 1, The rotating shaft 510 is provided on the measuring means 500 and rotatably installed, and includes a first rotating shaft 520 having a first magnet 521 at an end thereof; The second rotation shaft 530 having the helical gear 532 is installed at the lower end and the second magnet 531 is installed to maintain the same gap with the same polarity as the first magnet 521 at the upper end. Consists of separate, The first rotating shaft 520 is provided in the measuring means 500, The second rotation shaft (530) is a mechanical turbine flow meter, characterized in that provided in the mounting portion (130). The method according to claim 1 or 2, The matching means, Mechanical turbine flow meter, characterized in that consisting of a stepped portion 610 is formed to step in the inner circumferential surface of the flow passage passage from one end to a predetermined depth.

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