CN212539290U - Orifice flowmeter - Google Patents

Abstract

The utility model relates to the technical field of flowmeters, in particular to a pore plate flowmeter, which comprises a pipe body, a filter screen, jacks, a plug-in piece and at least two fixing pieces, wherein the two ends of the pipe body are provided with the pore plates, and the jacks are positioned on the pipe body between two connecting pipes; the plug-pull piece comprises a cover plate matched with the jack in shape, a sealing piece used for sealing the jack and the cover plate and a throttle plate connected with the lower surface of the cover plate, and a throttle hole is formed in the middle of the throttle plate; the inner wall of the pipe body is provided with a slot matched with the throttle plate, and the slot is communicated with the jack; the fixing pieces are arranged on the cover plate at intervals, the throttle plate is inserted into the slot, and the fixing pieces are used for fixing the plug-in piece and the pipe body; the filter screen is connected with the inner wall of the flange plate, so that the fluid to be measured can sequentially pass through the filter screen and the throttle plate. Through this orifice plate flowmeter, can effectively solve the complicated and inconvenient problem of throttle plate change of filtration.

Description

Orifice flowmeter

Technical Field

The utility model relates to a flowmeter technical field especially relates to a orifice plate flowmeter.

Background

The orifice plate flowmeter is a high-range-ratio differential pressure flow device formed by matching a standard orifice plate with a multi-parameter differential pressure transmitter (or a differential pressure transmitter, a temperature transmitter and a pressure transmitter). However, most of the liquid measured by the existing orifice plate flowmeter is turbid, and the impurities are more, so that the interior of the orifice plate flowmeter is easily blocked under the condition of long-term operation, and the service life of the orifice plate flowmeter is shortened.

In the prior art, a chinese utility model patent document with publication number CN210375235U and publication date of 21/04/2020 was proposed to solve the above-mentioned technical problems, and the technical solution disclosed in this patent document is as follows: the utility model provides a bridge type orifice plate flowmeter, including advancing the fluid pipeline and flowing out the fluid pipeline, it is equipped with first flange and second flange on the fluid pipeline respectively to advance the fluid pipeline and flow out the fluid pipeline, first ring room and second ring room are installed respectively to the right-hand member of first flange and the left end of second flange, seal mounting has splint between first ring room and the second ring room, be equipped with first orifice plate and second orifice plate in first ring room and the second ring room respectively, it gets the pressure mouth to be equipped with first pressure mouth and second respectively in first ring room and the second ring room, first pressure mouth and second are got pressure mouth and are seal connection with first pressure pipe and second pressure pipe respectively, in being equipped with logical stopper device in the splint.

In the actual use process, the following problems can occur in the technical scheme:

(1) this structure can solve the problem of clogging in the orifice plate flowmeter, but is complicated.

(2) The throttle plate in this structure is after long-term use, because wearing and tearing can influence the precision that detects, and this structure is when changing, need carry out whole changes after dismantling whole flowmeter, operates inconvenient and cost of maintenance can increase.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a diaphragm flowmeter can effectively solve the complicated and inconvenient problem of throttle plate change of filtration.

The utility model discloses a realize through adopting following technical scheme:

the utility model provides a hole plate flowmeter, includes the body, is connected with two connecting pipes on the body, is equipped with the pressure gauge on the connecting pipe, and the both ends of body all are equipped with ring flange, its characterized in that: the filter screen, the jack, the plug-in piece and at least two fixing pieces are also included; the jack is positioned on the pipe body between the two connecting pipes; the plug-pull piece comprises a cover plate matched with the jack in shape, a sealing piece used for sealing the jack and the cover plate and a throttle plate connected with the lower surface of the cover plate, and a throttle hole is formed in the middle of the throttle plate; the inner wall of the pipe body is provided with a slot matched with the throttle plate, and the slot is communicated with the jack; the fixing pieces are arranged on the cover plate at intervals, the throttle plate is inserted into the slot, and the fixing pieces are used for fixing the plug-in piece and the pipe body; the filter screen is connected with the inner wall of the flange plate, so that the fluid to be measured can sequentially pass through the filter screen and the throttle plate.

The periphery of the filter screen is also provided with an annular supporting piece.

The inner wall of the flange plate is provided with at least two barbs, the support piece is provided with a hanging ring, and the filter screen is fixed on the inner wall of the flange plate through the matching of the hanging ring and the barbs.

The peripheral body upper surface of jack is equipped with the first recess of undercut, the apron lower surface is equipped with the second recess corresponding with first recess, the sealing member is the rubber strip of fixing in first recess and second recess.

The area of the throttle plate corresponding to the slot is connected with a rubber layer.

The fixing piece comprises a pin shaft and a fixing plate fixed on the outer wall of the pipe body and the cover plate respectively, and pin holes are formed in the fixing plate.

The cover plate is provided with a handle.

The body bottom still is connected with the bracing piece, the bracing piece other end is connected with the supporting seat.

The support rod is a telescopic rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up jack and plug for plug and body swing joint, throttle plate link to each other with plug, and is impaired when the throttle plate, only need to change this plug can, need not change whole orifice plate flowmeter, the change mode is simpler, and reduced cost of maintenance. The mounting spaced type sets up on the apron, and the mounting has two at least, has two fixed points for the plug is more stable with being connected of body, avoids under the exogenic action, and the phenomenon that the plug takes place the skew for the body easily takes place for single fixed point.

The filter screen links to each other with the inner wall of ring flange for the fluid that awaits measuring can pass through filter screen and throttle plate in proper order, makes the filter screen be located orifice plate flowmeter's tip, takes off orifice plate flowmeter and can clean the filter screen, and clean mode is simple, laborsaving.

2. The periphery of the filter screen is also provided with an annular supporting piece, the shape of the filter screen can be supported by the supporting piece, and the filter screen can be better connected with the inner wall of the flange plate through the supporting piece.

3. The inner wall of the flange plate is provided with at least two barbs, the support piece is provided with the hanging ring, and under the action of fluid to be measured, the filter screen can be firmly fixed on the inner wall of the flange plate in the measuring process of the orifice plate flowmeter. When the orifice plate flowmeter does not need to work, the filter screen needs to be replaced or the filter screen is cleaned more thoroughly, the effect exerted by the fluid to be measured is avoided, and the filter screen can be easily taken down from the barb.

4. The sealing member is the rubber strip of fixing in first recess and second recess for sealed better between plug spare and the body.

5. The rubber layer is connected with the area, corresponding to the slot, on the throttle plate, so that the slot is sealed better, and the fluid to be tested in the pipe body is prevented from entering the slot.

6. The fixing piece comprises a pin shaft and a fixing plate fixed on the outer wall of the pipe body and the cover plate respectively, the fixing plate is provided with a pin hole, fixing is achieved through matching of the pin shaft and the pin hole, and the connecting mode is simple and stable.

7. Be equipped with the handle on the apron, be convenient for better take out plug spare from the jack, it is more convenient to use.

8. The body bottom still is connected with the bracing piece, the bracing piece other end is connected with the supporting seat, and bracing piece and supporting seat play the supporting role to the flowmeter, and this orifice plate flowmeter structure is more stable, and the orifice plate flowmeter is more stable when measuring.

9. The bracing piece is the telescopic link, is convenient for adjust the length of bracing piece according to the use scene is nimble of difference, and then adjusts the height of orifice plate flowmeter.

Drawings

The invention will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the tube body of the present invention after the plug member is removed;

FIG. 3 is a schematic front view of the plug member of the present invention;

fig. 4 is a schematic side view of the plug member of the present invention;

FIG. 5 is a schematic structural view of a filter screen according to the present invention;

FIG. 6 is a schematic view of the connection structure of the hook and the suspension loop of the present invention;

the labels in the figure are:

1. the pipe body, 2, filter screen, 3, jack, 4, plug piece, 5, connecting pipe, 6, pressure gauge, 7, ring flange, 8, apron, 9, sealing member, 10, throttle plate, 11, handle, 12, first recess, 13, second recess, 14, slot, 15, orifice, 16, rubber layer, 17, round pin axle, 18, fixed plate, 19, pinhole, 20, support piece, 21, first L shape part, 22, second L shape part, 23, link, 24, bracing piece, 25, supporting seat.

Detailed Description

Example 1

As the utility model discloses basic embodiment, the utility model discloses a pore plate flowmeter, including body 1, be connected with two connecting pipes 5 on the body 1, be equipped with pressure gauge 6 on the connecting pipe 5, the both ends of body 1 all are equipped with ring flange 7. These structures are common to existing flowmeters and will not be described. The orifice plate flowmeter is characterized in that: the filter screen is characterized by further comprising a filter screen 2, a jack 3, a plug-pull piece 4 and two fixing pieces. The insertion hole 3 is formed in the pipe body 1 between the two connection pipes 5. The plug member 4 comprises a cover plate 8 matched with the shape of the jack 3, a sealing member 9 used for sealing the jack 3 and the cover plate 8 and a throttle plate 10 connected with the lower surface of the cover plate 8. The throttle plate 10 is provided with a throttle hole 15 in the middle. The inner wall of the pipe body 1 is provided with a slot 14 matched with the throttle plate 10, and the slot 14 is communicated with the jack 3. The fixing pieces can be hoops which are arranged on the cover plate 8 at certain intervals and are arranged in a left-right mode along the running direction of the fluid to be measured,

the flange 7 is provided with the pipe body 1, the inner wall of the flange 7 is connected with the filter screen 2, the filter screen 2 can be in a hemispherical shape, and the end parts of the filter screen 2 are respectively connected with the inner wall of the flange 7. During the installation, pass through bolted connection with ring flange 7 on this body 1 and the ring flange on the pipeline under test together, insert the slot 14 with throttle plate 10 in, apron 8 just covers to close on jack 3, closes the department sealed with the lid of jack 3 with apron 8 through sealing member 9, prevents to leak, and plug 4 is fixed mutually with body 1 with the rethread mounting. Finally, the fluid to be measured can pass through the filter screen 2 and the throttle plate 10 in sequence.

Example 2

As a preferred embodiment of the present invention, the present invention includes a perforated plate flowmeter, which includes a pipe body 1, a filter screen, a jack 3, a plug 4 and a three fixing member. Two connecting pipes 5 are connected to the pipe body 1, pressure gauges 6 are arranged on the connecting pipes 5, and flange plates 7 are arranged at two ends of the pipe body 1. The insertion hole 3 is formed in the pipe body 1 between the two connection pipes 5. The plug member 4 comprises a cover plate 8 matched with the shape of the jack 3, a sealing member 9 used for sealing the jack 3 and the cover plate 8 and a throttle plate 10 connected with the lower surface of the cover plate 8. The upper surface of the peripheral body 1 of jack 3 is equipped with the first recess 12 of undercut, 8 lower surfaces of apron are equipped with the second recess 13 corresponding with first recess 12, sealing member 9 is the rubber strip of fixing in first recess 12 and second recess 13. The fixing piece can be the cooperation of lug and connecting chain.

The throttle plate 10 is provided with a throttle hole 15 in the middle. The inner wall of the pipe body 1 is provided with a slot 14 matched with the throttle plate 10, and the slot 14 is communicated with the jack 3. After the throttle plate 10 is inserted into the slot 14, the three lifting lugs are respectively positioned at the front side, the rear side and the upper side of the cover plate 8, sequentially penetrate through the three lifting lugs through the connecting chain, are connected end to end after winding the pipe body 1 for a circle, and the plug-pull piece 4 is fixedly and firmly fixed with the pipe body 1.

The periphery of the filter screen 2 is also provided with an annular support member 20, the annular support member 20 is made of iron, the support member 20 is welded with the inner wall of the flange 7, and the filter screen 2 is wound on the annular support member 20, so that the fluid to be measured can sequentially pass through the filter screen 2 and the throttle plate 10.

Example 3

As the best mode of the present invention, referring to the attached drawing 1 of the specification, the present invention includes a hole plate flowmeter, which includes a pipe body 1, a filter screen 2, a jack 3, a plug 4 and four fixing members. Two connecting pipes 5 are connected to the pipe body 1, pressure gauges 6 are arranged on the connecting pipes 5, and flange plates 7 are arranged at two ends of the pipe body 1. The bottom of the pipe body 1 is also connected with a support rod 24, and the other end of the support rod 24 is connected with a support seat 25. The support rod 24 is a telescopic rod.

Referring to the description attached to fig. 2, the description attached to fig. 3, and the description attached to fig. 4, the insertion hole 3 is located on the pipe body 1 between the two connecting pipes 5, and the height of the insertion hole 3 is 1/2 of the height of the pipe body 1. The plug-in part 4 comprises a cover plate 8, a sealing part 9 and a throttle plate 10 connected with the lower surface of the cover plate 8. The cover plate 8 is arc-shaped with an included angle of 180 degrees and is matched with the shape of the jack 3. The cover plate 8 is provided with a handle 11, and the handle 11 is provided with an anti-skid layer. The sealing element 9 may be a rubber ring formed by enclosing a rubber strip. The peripheral 1 upper surface of body of jack 3 is equipped with first recess 12 of undercut, 8 lower surfaces of apron are equipped with the second recess 13 corresponding with first recess 12, the upper and lower limit of rubber circle is located first recess 12 and second recess 13 respectively, and first recess 12 and second recess 13 are fixed a position and are fixed with the rubber circle, and the realization is sealed with apron 8 and 3 lid of jack, prevents to leak.

The inner wall of the pipe body 1 is provided with a slot 14 matched with the throttle plate 10, and the slot 14 is communicated with the jack 3. The throttle plate 10 is provided with a throttle hole 15 in the middle, and a rubber layer 16 is connected to the area corresponding to the slot 14. When the throttle plate 10 is inserted into the slot 14, the fluid to be measured continuously exerts an acting force, and the rubber layer 16 can reduce the acting force and prevent the pipe body 1 from generating large vibration. And the rubber layer 16 can seal the connection between the slot 14 and the throttle plate 10 to prevent the fluid to be measured from flowing into the slot 14.

The fixing part comprises a pin shaft 17 and a fixing plate 18 respectively fixed on the outer wall of the pipe body 1 and the cover plate 8, and a pin hole 19 is formed in the fixing plate 18. Four groups of fixing plates 18 are correspondingly arranged on the outer wall of the pipe body 1 and the cover plate 8, wherein the four groups of fixing plates 18 are respectively positioned at two sides of the cover plate 8. After the throttle plate 10 is inserted into the slot 14, the plug-in piece 4 is fixed with the pipe body 1 through the matching of the pin shaft 17 and the pin hole 19.

Referring to the accompanying drawings 5 and 6, the filter screen 2 is further provided with an annular support member 20 at its periphery. The filter screen 2 is fixed to the annular support 20. The inner wall of the flange plate 7 is provided with four barbs which are arranged at intervals of 90 degrees. The barb may comprise two connected first and second L-shaped members 21, 22, wherein the first L-shaped member 21 is connected to the inner wall of the flange 7, and wherein a suspension loop 23 is connected to the support member 20, said suspension loop 23 being suspended from the second L-shaped member 22. Along the running direction of the fluid to be measured, the first L-shaped part 21, the hanging ring 23, the second L-shaped part 22 and the filter screen 2 are arranged from left to right in sequence, and the fluid to be measured can pass through the filter screen 2 and the throttle plate 10 in sequence.

In conclusion, after the ordinary skilled in the art reads the document of the present invention, the technical solution and technical idea of the present invention do not need creative mental labor and make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims (9)

1. The utility model provides a hole plate flowmeter, includes body (1), is connected with two connecting pipes (5) on body (1), is equipped with pressure gauge (6) on connecting pipe (5), and the both ends of body (1) all are equipped with ring flange (7), its characterized in that: the filter screen is characterized by also comprising a filter screen (2), a jack (3), a plug-pull piece (4) and at least two fixing pieces; the jack (3) is positioned on the pipe body (1) between the two connecting pipes (5); the plug-pull piece (4) comprises a cover plate (8) matched with the jack (3) in shape, a sealing piece (9) used for sealing the jack (3) and the cover plate (8), and a throttle plate (10) connected with the lower surface of the cover plate (8), wherein a throttle hole (15) is formed in the middle of the throttle plate (10); the inner wall of the pipe body (1) is provided with a slot (14) matched with the throttle plate (10), and the slot (14) is communicated with the jack (3); the fixing pieces are arranged on the cover plate (8) at intervals, the throttle plate (10) is inserted into the slot (14), and the fixing pieces are used for fixing the plug-in piece (4) and the pipe body (1); the filter screen (2) is connected with the inner wall of the flange plate (7), so that fluid to be measured can sequentially pass through the filter screen (2) and the throttle plate (10).

2. An orifice plate flow meter in accordance with claim 1 wherein: the periphery of the filter screen (2) is also provided with an annular support member (20).

3. An orifice plate flow meter in accordance with claim 2 wherein: the filter screen is characterized in that at least two barbs are arranged on the inner wall of the flange plate (7), hanging rings (23) are arranged on the supporting pieces (20), and the filter screen (2) is fixed on the inner wall of the flange plate (7) through the matching of the hanging rings (23) and the barbs.

4. An orifice plate flow meter as set forth in claim 1 or 3 wherein: the peripheral body (1) upper surface of jack (3) is equipped with first recess (12) of undercut, apron (8) lower surface is equipped with second recess (13) corresponding with first recess (12), sealing member (9) are for fixing the rubber strip in first recess (12) and second recess (13).

5. An orifice plate flow meter in accordance with claim 4 wherein: the throttle plate (10) is connected with a rubber layer (16) in the area corresponding to the slot (14).

6. An orifice plate flow meter in accordance with claim 5 wherein: the fixing piece comprises a pin shaft (17) and a fixing plate (18) which is respectively fixed on the outer wall of the pipe body (1) and the cover plate (8), and pin holes (19) are formed in the fixing plate (18).

7. An orifice plate flow meter in accordance with claim 6 wherein: the cover plate (8) is provided with a handle (11).

8. An orifice plate flow meter as set forth in claim 2 or 7 wherein: the bottom of the pipe body (1) is also connected with a support rod (24), and the other end of the support rod (24) is connected with a support seat (25).

9. An orifice plate flow meter in accordance with claim 8 wherein: the supporting rod (24) is a telescopic rod.

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