CN211060981U

CN211060981U - Double-flange pressure-taking type RC (resistor-capacitor) adjustment type flowmeter

Info

Publication number: CN211060981U
Application number: CN201922234404.8U
Authority: CN
Inventors: 杨欢; 刘宏波
Original assignee: Anwei Electromechanical Equipment Manufacturing Shanghai Co ltd
Current assignee: Anwei Electromechanical Equipment Manufacturing Shanghai Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-07-21
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a formula RC adjustment type flowmeter is got to two flanges pressure, be responsible for and the throttle plate including the flow, the flow pipe includes first flow shunt tubes and second flow shunt tubes, and the diameter of throttle pipe is greater than the internal diameter of first flow shunt tubes and is less than the external diameter of first flow shunt tubes, and the terminal surface of first flow shunt tubes is seted up one and is inlayed the first annular caulking groove of establishing the throttle plate, each rigid coupling of outer peripheral face of first flow shunt tubes and second flow shunt tubes is equipped with one and is used for pressing from both sides the throttle plate and establish firm third flange, fixes each other through a plurality of bolts between two third flanges. The utility model discloses have the effect of being convenient for dismantle the change to the throttle plate of damage.

Description

Double-flange pressure-taking type RC (resistor-capacitor) adjustment type flowmeter

Technical Field

The utility model belongs to the technical field of the flowmeter and specifically relates to a formula RC adjustment type flowmeter is got to two flanges.

Background

The existing double-flange pressure-taking type RC adjusting type flowmeter is suitable for measuring the flow of viscous, easily-scaling and easily-crystallized media (such as crude oil, residual oil, wax oil, raw oil, recycle oil in the petrochemical industry, tar, sulfur, benzene in the chemical industry, coal water slurry in the metallurgical industry and the like), dirt, impurities, dust and fixed particle media.

As shown in fig. 1 and 2, the double-flange pressure-taking type RC adjustment type flowmeter comprises a flow tube and a throttle plate 2 arranged in the flow tube, wherein a plurality of throttle holes 21 are uniformly formed in the throttle plate 2, and two pressure-taking tubes 15 are respectively arranged on two sides of the flow tube on the throttle plate 2; the two ends of the flow tube are respectively and coaxially fixedly connected with a first flange 14 used for being connected with other pipe fittings, and the end parts of the two pressure sampling tubes 15 are respectively and fixedly connected with a second flange 16 connected with pressure measuring equipment.

Because the inside fluid environment of pressure formula RC adjustment type flowmeter is got to double flange all comparatively glues thick and muddy, inside still contains solid particle even, after double law pressure formula RC adjustment type flowmeter uses for a long time, will certainly cause the wearing and tearing to orifice 21 border on the throttle plate 2, thereby influence the pressure measurement data of pressure measurement equipment, but current throttle plate 2 all welds the inside at the flow tube mostly, if throttle plate 2 damages, need get pressure formula RC adjustment type flowmeter to double flange and wholly change, the cost is great.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a two flange pressure-taking type RC adjustment type flowmeter, its advantage is to set up the throttle plate into can dismantle with the flow tube and be connected to be convenient for dismantle the change to the throttle plate of damage, thereby improved the replacement cost.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a two flange pressure-taking type RC adjustment type flowmeter, includes that the flow is responsible for and the throttle plate, and the flow pipe includes first flow shunt tubes and second flow shunt tubes, and the diameter of throttle pipe is greater than the internal diameter of first flow shunt tubes and is less than the external diameter of first flow shunt tubes, and the terminal surface of first flow shunt tubes is seted up one and is inlayed the first annular caulking groove of establishing the throttle plate, each rigid coupling of outer peripheral face of first flow shunt tubes and second flow shunt tubes is equipped with one and is used for pressing from both sides the third flange of establishing the throttle plate firmly, fixes each other through a plurality of bolts between two third flanges.

Through adopting above-mentioned technical scheme, when the staff installs the throttle plate, can inlay the throttle plate and establish in the first annular caulking groove of first flow shunt tubes tip, then fix two third flanges each other through the bolt, make the terminal surface of second flow shunt tubes support the opposite side at the throttle plate, and screw through the bolt, make stable clamp of throttle plate establish between first flow shunt tubes and second flow shunt tubes, if damage appears in the throttle plate, also be convenient for the staff passes through screwing of bolt, with two third flanges alternate segregation, thereby change the throttle plate, and the operation is simple, and the maintenance efficiency is high.

The present invention may be further configured in a preferred embodiment as: and a second annular caulking groove is formed in the end face of the second flow dividing pipe.

Through adopting above-mentioned technical scheme, seting up of second annular caulking groove has played spacing fixed effect to the throttle plate, inlay through first annular caulking groove and second annular caulking groove when to the throttle plate and establish, good limiting displacement has been played to the throttle plate, and the throttle plate inlays to be established in first annular caulking groove and second annular caulking groove, the area of contact of throttle plate and first flow shunt tubes and second flow shunt tubes has been increased, after two third flanges reciprocal anchorage, make throttle plate and first annular caulking groove and second annular caulking groove inner wall paste inseparabler, the fixed stability of throttle plate has not only been improved, but also airtight effect has been played.

The present invention may be further configured in a preferred embodiment as: the depth of the first annular caulking groove and the depth of the second annular caulking groove are smaller than half of the thickness of the throttle plate.

Through adopting above-mentioned technical scheme, when the throttle plate was located first annular caulking groove and second annular caulking groove simultaneously, leave deformation space between the terminal surface of first flow shunt tubes and the terminal surface of second flow shunt tubes to be convenient for through screwing of bolt, make the bottom surface of first annular caulking groove and second annular caulking groove and throttle plate terminal surface paste inseparabler.

The present invention may be further configured in a preferred embodiment as: the outer peripheral surface of the throttle plate is provided with a positioning groove, and the bottom surface of the first annular caulking groove is fixedly connected with a positioning block matched with the positioning groove.

By adopting the technical scheme, after the throttle plate is inserted into the first annular caulking groove, the positioning block between the positioning groove of the throttle plate and the first annular caulking groove is matched with each other, so that the rotation of the throttle plate in the first annular caulking groove is limited, and the stability of the fluid impact throttle plate is ensured.

The present invention may be further configured in a preferred embodiment as: and rubber rings are respectively clamped in the areas corresponding to the first annular caulking groove and the second annular caulking groove on the two end surfaces of the throttle plate.

Through adopting above-mentioned technical scheme, the rubber circle presss from both sides and establishes between first annular caulking groove, second annular caulking groove and throttle plate both ends face, has filled through the deformation of rubber circle that first annular caulking groove, second annular caulking groove and throttle plate both ends face paste the gap to first flow shunt tubes and the fixed leakproofness of second flow shunt tubes terminal surface have been improved.

The present invention may be further configured in a preferred embodiment as: and two end faces of the throttle plate are respectively provided with a limiting groove embedded with a rubber ring.

Through adopting above-mentioned technical scheme, the seting up of spacing groove has played spacing fixed effect to the rubber circle, and when installing throttle plate and first flow shunt tubes and second flow shunt tubes, the rubber circle inlays to be established at the spacing inslot to the accuracy of equipment counterpoint has been improved.

The present invention may be further configured in a preferred embodiment as: the fluid flows from the first flow shunt pipe to the second flow shunt pipe, one side of the throttle plate, facing the second flow direction throttle plate, is provided with a cross support rod for assisting in supporting the throttle plate, and the second annular caulking groove is provided with four grooves for embedding the end parts of the cross support rod.

Through adopting above-mentioned technical scheme, the throttle plate mainly leans on the screens of first annular caulking groove and second annular caulking groove, has realized the fixed of throttle plate, so the fixed point of throttle plate all is located the border department of throttle plate, receive fluidic impact when the throttle plate for a long time, make the middle part of throttle plate to the convex trend of second flow reposition of redundant personnel pipe orientation, so the setting of cross bracing piece has played the effect of auxiliary stay to the middle part region of throttle plate, make the throttle plate atress more even, the life of throttle plate has been improved.

To sum up, the utility model discloses a following at least one useful technological effect:

firstly, the throttle plate is convenient to replace. The throttle plate clamped between the first flow dividing pipe and the second flow dividing pipe is convenient to replace by mutually detaching the first flow dividing pipe and the second flow dividing pipe;

and secondly, the stability of the throttle plate fixation is improved. Through the mutual cooperation of constant head tank and locating piece, restricted the rotation of throttle plate in first annular caulking groove, ensured the throttle plate at the stability of two flange pressure-taking formula RC adjustment type flowmeters.

Drawings

FIG. 1 is a schematic diagram of the overall construction of a background art flow meter;

FIG. 2 is a schematic diagram of the internal structure of a background art flow meter;

FIG. 3 is a schematic view of the entire structure of the flow meter in the present embodiment;

FIG. 4 is a schematic view of an installation configuration embodying a first flow diverter and a throttle plate;

FIG. 5 is a schematic view of an exemplary second flow diverter and throttle plate mounting arrangement;

fig. 6 is a schematic diagram showing the internal structure of the flowmeter.

In the figure, 1, a flow main pipe; 11. a first flow diverter tube; 111. a first annular caulking groove; 112. positioning blocks; 12. a second flow shunt tube; 121. a second annular caulking groove; 122. a groove; 13. a third flange; 14. a first flange; 15. a pressure sampling pipe; 16. a second flange; 2. a throttle plate; 21. an orifice; 22. positioning a groove; 23. a limiting groove; 24. a rubber ring; 25. a cross support bar; .

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A double-flange pressure-taking type RC adjusting type flowmeter is shown in figures 3 and 4 and comprises a main flow pipe 1 and a throttle plate 2 arranged in the main flow pipe 1, wherein the throttle plate 2 is circular, and the throttle plate 2 and the main flow pipe 1 are coaxially arranged.

As shown in fig. 3, the flow main pipe 1 includes a first flow dividing pipe 11 and a second flow dividing pipe 12 which are coaxially disposed, the first flow dividing pipe 11 and the second flow dividing pipe 12 have the same size, a third flange 13 is fixedly connected to the outer peripheral surface of each of the first flow dividing pipe 11 and the second flow dividing pipe 12, two third flanges 13 are disposed near the butt end surface of each of the first flow dividing pipe 11 and the second flow dividing pipe 12, the two third flanges 13 are fixed to each other by a plurality of bolts and nuts, a first flange 14 is fixedly connected to the outer peripheral surface of each of the first flow dividing pipe 11 and the second flow dividing pipe 12, and the first flange 14 is disposed at the end of each of the first flow dividing pipe 11 and the second flow dividing pipe 12 and is disposed away from the third flange 13; the circumferential surfaces of the first flow dividing pipe 11 and the second flow dividing pipe 12 are respectively fixedly connected with a pressure sampling pipe 15, the pressure sampling pipes 15 are mutually communicated with the interiors of the corresponding first flow dividing pipe 11 and the corresponding second flow dividing pipe 12, and the circumferential surfaces of the two pressure sampling pipes 15 are fixedly connected with a second flange 16 for mutually fixing with pressure measuring equipment.

As shown in fig. 4, four orifices 21 are uniformly opened in the throttle plate 2, and the four orifices 21 are parallel to the axis of the throttle plate 2. The diameter of the throttle plate 2 is larger than the inner diameter of the first flow shunt tube 11 and smaller than the outer diameter of the first flow shunt tube 11; the end surface of the first flow dividing pipe 11 facing the second flow dividing pipe 12 is provided with a first annular caulking groove 111, the diameter of the inner circumferential surface of the first annular caulking groove 111 is equal to the diameter of the throttle plate 2, and the depth of the first annular caulking groove 111 is less than half of the thickness of the throttle plate 2. When the throttle plate 2 is installed, the throttle plate 2 can be embedded in the first annular embedding groove 111 by a worker, so that the throttle plate 2 is limited and fixed. A positioning groove 22 is formed on the outer peripheral surface of the throttle plate 2 along the axis of the throttle plate 2, and a positioning block 112 matched with the positioning groove 22 of the throttle plate 2 is fixedly connected to the bottom wall of the first annular embedding groove 111. After the positioning block 112 is snapped into the positioning groove 22 of the throttle plate 2, the rotation of the throttle plate 2 in the first annular groove 122 is limited, and the stability of the fixing of the throttle plate 2 is ensured.

As shown in fig. 5, a second annular caulking groove 121 having the same size as the first annular caulking groove 111 is formed on the butt end surface of the second flow dividing pipe 12 and the first flow dividing pipe 11. After the throttle plate 2 is placed in the first annular caulking groove 111 of the first flow dividing pipe 11, the end faces of the first flow dividing pipe 11 and the second flow dividing pipe 12 are butted with each other, so that the two side edges of the throttle plate 2 are respectively embedded in the first annular caulking groove 111 and the second annular caulking groove 121, and then the two third flanges 13 are mutually screwed and fixed through bolts and nuts. Because the depth of the first annular caulking groove 111 and the second annular caulking groove 121 is less than half of the thickness of the throttle plate 2, when the throttle plate 2 is attached to the bottom walls of the first annular caulking groove 111 and the second annular caulking groove 121, deformation spaces are reserved at the ends of the first flow dividing pipe 11 and the second flow dividing pipe 12, so that the first flow dividing pipe 11 and the second flow dividing pipe 12 can clamp the throttle plate 2 more stably by screwing bolts and nuts.

As shown in fig. 4 and 5, two end faces of the throttle plate 2 are respectively provided with an annular limiting groove 23, the limiting groove 23 is located at the edge of the throttle plate 2 and corresponds to the bottom positions of the first annular caulking groove 111 and the second annular caulking groove 121, and the width of the limiting groove 23 is smaller than the width of the bottom walls of the first annular caulking groove 111 and the second annular caulking groove 121. A rubber ring 24 is inserted into each of the two limiting grooves 23. When the throttle plate 2 leans on the inner walls of the first annular caulking groove 111 and the second annular caulking groove 121, the two rubber rings 24 are extruded to deform, so that the abutting gaps between the throttle plate 2 and the bottom walls of the first annular caulking groove 111 and the second annular caulking groove 121 are filled, and the water blocking and sealing effects are achieved.

As shown in fig. 5 and 6, the throttle plate 2 is only retained by the inner walls of the first annular caulking groove 111 and the second annular caulking groove 121. When the throttle plate 2 is impacted by water flow for a long time, the middle part of the throttle plate 2 is under high pressure of liquid, and the throttle plate 2 is easily deformed. Therefore, a cross support rod 25 is disposed in the second annular caulking groove 121 of the second flow rate shunt tube 12, and four grooves 122 for accommodating the end portions of the cross support rod 25 are formed in the bottom wall of the second annular caulking groove 121, so that the tight fit between the bottom wall of the second annular caulking groove 121 and the end surface of the throttle plate 2 is not affected. And the provision of the groove 122 also limits the rotation of the cross support bar 25 within the second annular nest 121. After the throttle plate 2 is clamped in the middle by the first flow dividing pipe 11 and the second flow dividing pipe 12, the cross support rod 25 plays a role of auxiliary support for the throttle plate 2, so that the support force applied to the throttle plate is more balanced. And the cross support bar 25 is erected between the adjacent two orifices 21 so as not to interfere with the flow of the water flow. In the process of long-term use of the double-flange pressure-taking type RC adjustment type flowmeter, even if the throttle plate 2 is damaged, a worker can conveniently replace the throttle plate 2 by detaching the two third flanges 13, so that the maintenance efficiency is improved, and the maintenance cost is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a double flange pressure-taking type RC adjustment type flowmeter, includes that flow is responsible for (1) and throttle plate (2), its characterized in that: the flow main pipe (1) comprises a first flow dividing pipe (11) and a second flow dividing pipe (12), the diameter of the throttle plate (2) is larger than the inner diameter of the first flow dividing pipe (11) and smaller than the outer diameter of the first flow dividing pipe (11), a first annular caulking groove (111) for embedding the throttle plate (2) is formed in the end face of the first flow dividing pipe (11), third flanges (13) for clamping and fixing the throttle plate (2) firmly are fixedly connected to the outer peripheral faces of the first flow dividing pipe (11) and the second flow dividing pipe (12), and the two third flanges (13) are fixed with each other through a plurality of bolts.

2. The double-flange pressure-taking type RC adjustment type flowmeter according to claim 1, wherein: the end surface of the second flow shunt pipe (12) is provided with a second annular caulking groove (121).

3. The double-flange pressure-taking type RC adjustment type flowmeter according to claim 2, wherein: the depth of the first annular caulking groove (111) and the second annular caulking groove (121) is less than half of the thickness of the throttle plate (2).

4. The double-flange pressure-taking type RC adjustment type flowmeter according to claim 1, wherein: the outer peripheral surface of the throttle plate (2) is provided with a positioning groove (22), and the bottom surface of the first annular embedding groove (111) is fixedly connected with a positioning block (112) matched with the positioning groove (22).

5. The double-flange pressure-taking type RC adjustment type flowmeter according to claim 2, wherein: and rubber rings (24) are respectively clamped in the areas corresponding to the first annular caulking groove (111) and the second annular caulking groove (121) on the two end surfaces of the throttle plate (2).

6. The double-flange pressure-taking type RC adjusted flowmeter according to claim 5, wherein: and two end faces of the throttle plate (2) are respectively provided with a limiting groove (23) embedded with a rubber ring (24).

7. The double-flange pressure-taking type RC adjustment type flowmeter according to claim 2, wherein: fluid flows to the second flow shunt pipe (12) from the first flow shunt pipe (11), one side of the throttle plate (2) facing the second flow direction throttle plate (2) is provided with a cross support rod (25) for assisting in supporting the throttle plate (2), and the second annular caulking groove (121) is provided with four grooves (122) for embedding the end parts of the cross support rod (25).